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Is there an optimum bedtime?

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Does the time at which we go to bed influence cardiovascular possibility? MirageC/Getty Photos
  • A study takes a initial glimpse at the risk of one’s bedtime getting a possibility factor for acquiring cardiovascular illness (CVD).
  • The research authors identified an association between the most affordable possibility of CVD and a 10:00–10:59 p.m. bedtime.
  • The researchers speculate that other bedtimes may possibly disrupt the body’s internal clock.

Some earlier research supports the concept that not obtaining plenty of snooze can guide to CVD.

Having said that, a lot less awareness has been paid out to when we go to sleep and how this could affect cardiovascular health. A new examine from scientists at Huma Therapeutics suggests there might be a connection.

The research observed that females who go to bed concerning 10 and 11 p.m. create CVD significantly less generally than females turning in either previously or afterwards.

According to senior investigator Dr. David Ideas:

“Our study indicates that the ideal time to go to snooze is at a precise point in the body’s 24-hour cycle, and deviations may possibly be detrimental to wellbeing. The riskiest time was just after midnight, likely due to the fact it could cut down the chance of looking at early morning light-weight, which resets the overall body clock.”

The analyze seems in the European Coronary heart Journal – Digital Health and fitness.

“The body has a 24-hour inside clock, identified as circadian rhythm,” explains Dr. Options, “that will help regulate bodily and psychological working. Although we are not able to conclude causation from our analyze, the final results advise that early or late bedtimes may be a lot more very likely to disrupt the body clock, with adverse outcomes for cardiovascular health and fitness.”

“Certainly, the great importance of circadian rhythms and system clock in human overall health is really obvious. We all have a 24-hour clock that affects several overall body areas,” Dr. Atul Malhotra, a College of California San Diego rest medicine specialist, told Professional medical News Now.

“But regardless of whether folks go to rest early or go to slumber late or anything is form of an particular person attribute,” Dr. Malhotra additional.

“Some of us are early birds, and some of us are evening owls, and which is just the way it is. So to make a blanket statement that everyone need to go to bed at X time is a bit foolish, due to the fact, you know, it relies upon on your specific biology.”

Dr. Malhotra informed MNT that, for illustration, though investigation has revealed that heart attacks are inclined to happen at close to 10:00 a.m., it is not about the time demonstrated by the clock on the wall. “After you wake up in the early morning,” he discussed, “is when the spike tends to occur based mostly on [one’s] intrinsic clock. It’s not just the external clock that issues.”

In full, there have been 88,026 members in the research — 58{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of them female — recruited by the United kingdom Biobank concerning 2006 and 2010. They ranged in age from 43 to 70 a long time. The suggest age was 61 many years.

The contributors stuffed out questionnaires reporting their age, intercourse, sociodemographic position, the quantity of rest they ended up utilized to, their working experience of interrupted slumber, their chronotype — night owl or early chicken — and no matter whether they smoked.

What’s more, the scientists assessed the individuals’ human body mass index, blood tension and cholesterol levels, and presence of diabetes.

They then outfitted each examine participant with a wrist accelerometer that permitted for exact monitoring of the onset of snooze according to the individuals’ absence of movement.

More than 7 days and nights, the researchers collected first sleeping information.

An prolonged stick to-up interval averaging 5.7 many years tracked the individuals’ growth of CVD.

The scientists thought of coronary heart assault, coronary heart failure, stroke, serious ischemic heart disorder, and transient ischemic assault to be examples of CVD.

Through the adhere to-up period, 3,172, or 3.6{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809}, of the participants created CVD. The review authors discovered that CVD possibility was distinctive for females than for males.

The least expensive incidence of CVD was existing in ladies who went to mattress in between 10:00 and 10:59 p.m.

Compared with that group, the females who turned in amongst 11:00 and 11:59 p.m. were being 12{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} more most likely to have formulated CVD.

The researchers connected the greatest danger with likely to slumber following midnight (25{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809}) or right before 10:00 p.m. (24{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809}).

For males, the only solid affiliation with a increased danger of CVD was amid those people who went to sleep right before 10:00 p.m.

Speculating on the variance concerning the sexes, Dr. Programs says:

“It may well be that there is a intercourse change in how the endocrine method responds to a disruption in circadian rhythm. Alternatively, the more mature age of examine individuals could be a confounding factor, because women’s cardiovascular danger boosts postmenopause — this means there may well be no variation in the power of the association among women of all ages and males.”

Dr. Malhotra instructed that the review findings could be affected by a array of confounding aspects. When it arrives to the evident link concerning early rest onset and CVD, he reported: “My guess is that some of the individuals who tumble asleep before are sleep-deprived. They are not getting plenty of snooze at evening, so they have a tendency to slide asleep early.”

“Sleep apnea is yet another frequent problem, and that could be yet another confounder,” explained Dr. Malhotra, pointing out that it “can have an affect on people’s cardiovascular threat.”

“While the conclusions do not display causality,” Dr. Designs concludes, “sleep timing has emerged as a probable cardiac possibility issue — impartial of other threat factors and snooze properties. If our findings are verified in other scientific studies, snooze timing and basic snooze hygiene could be a lower-expense general public wellbeing focus on for reducing hazard of heart disease.”

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Link found between exercise, anxiety, and depression

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Many people may have benefitted from exercising outdoors during the coronavirus lockdowns in 2020 and 2021. Karwai Tang/Getty Images
  • A new study highlights the importance of being active and spending time outdoors, even during a pandemic.
  • The researchers found that people who exercised more during lockdowns experienced less anxiety and depression than those who did not exercise.
  • They also found that people who spent more time outdoors had lower levels of anxiety and depression than those who stayed inside.
  • Although stopping viral transmission remains key, such research could help governments reconsider some mitigation measures to lessen their negative effects on mental health.

The extent of COVID-19 lockdowns, curfews, and pandemic mitigation measures varied among countries throughout 2020 and 2021.

During the initial lockdown in March 2020, the United Kingdom, for example, allowed only one exercise session — for instance, going for a walk, run, or bike ride — a day. Turkey, meanwhile, did not make exceptions for outdoor exercise and only permitted people to leave their homes to shop for basic necessities. Many states in the United States took a different approach and put no caps on time spent outdoors.

The researchers behind a new study, which appears in the journal Preventive Medicine, aimed to look back on the effects such differences may have had on individuals in terms of mental health, especially during the first wave of the pandemic when the authorities imposed lockdowns.

They found that physical activity and time spent outdoors during the pandemic were associated with better mental health.

The healthcare company Kaiser Permanente (KP) led the study, which involved people from Hawaii, Colorado, Georgia, the mid-Atlantic states, and Southern and Northern California.

The researchers surveyed more than 20,000 people in April 2020 and at least three more times until July 2020. The participants, all of whom were enrolled in a KP plan, answered questions about their lifestyle, shared their electronic health records, and gave biospecimens.

Most of the respondents were retired and adhered to stay-at-home orders. White women aged 50 years and over constituted the majority.

After analyzing the data, the researchers saw that those who had exercised or spent more time outdoors had lower anxiety and depression scores.

They also found the following:

  • The participants reported fewer symptoms of anxiety and depression over time.
  • Females and younger people had higher anxiety and depression scores, while Asian and Black people had lower scores.
  • Those who did not report doing any physical activity during lockdown had the highest depression and anxiety scores.

However, the research found that the people who had increased the time they spent outdoors by the greatest amount also reported the highest anxiety scores. This was consistent in all demographic groups. The researchers could not explain this finding.

Lead author Deborah Rohm Young, Ph.D., the director of the Division of Behavioral Research for the Kaiser Permanente Southern California Department of Research & Evaluation, told Medical News Today she expected that more physical activity, as well as more time outdoors in nature, would be associated with lower depression and anxiety scores.

“The data is very clear that the mind and the brain are healthier when we spend more time […] in nature, but [also] just outdoors in general,” said Dr. David A. Merrill, adult and geriatric psychiatrist and director of the Pacific Neuroscience Institute’s Pacific Brain Health Center at Providence Saint John’s Health Center in Santa Monica, CA.

“There are studies that show that less time outdoors leads to brain atrophy, over time and with age,” he added.

Dr. Bert Mandelbaum, sports medicine specialist, orthopedic surgeon, and co-chair of medical affairs at Cedars-Sinai Kerlan-Jobe Institute in Los Angeles, told MNT that the study was comprehensive and measured a lot of different aspects before coming to a conclusion.

“At the end of the day, exercise activities and being outside are healthy behaviors that optimize people’s lives and decrease anxiety and depression,” he said.

However, Dr. Young pointed out some findings that surprised the team.

“I was surprised to observe that the depression/anxiety scores improved over time and also that both increasing and decreasing the amount of time spent outdoors was associated with higher depression and anxiety scores,” she said.

Dr. Merrill said that interpreting the findings was a bit complicated and involved a fair amount of conjecture.

One factor behind the discrepancies could be the lack of baseline levels of both physical activity and depression or anxiety scores from pre-pandemic times, he said.

Dr. Young said that not knowing how much time the respondents spent in nature prior to the pandemic was one of the limitations that could explain why more time outdoors was associated with a higher score of anxiety.

“It could be that people who spent less time outdoors did so because of adhering to the stay-at-home orders and felt deprived of their ability to be outdoors. Or that people who reported spending more time outdoors did so because they were experiencing poor mental well-being,” she said.

Dr. Mandelabum, however, said that this should not detract from the main finding of the study.

“I would focus more on the fact that [more people] improved by going outside, being in nature, and exercising in a high intensity way, which optimizes anxious and depressed states. [T]he real conclusion is the importance of physical activity and being outdoors,” he said.

Dr. Young noted that other findings were mostly consistent with earlier research.

“Many previous studies have documented that females tend to have higher anxiety and depression scores than males. There are also a number of studies suggesting that older adults have better mental well-being than younger adults,” she told MNT.

The research attributed the latter to adults having lived through more adversity and having more experience in dealing with stress.

According to Dr. Merrill, the new study highlights an important issue. He said that his colleagues have seen a disproportionate number of adolescent patients facing challenges with their mental health since the pandemic.

“The data is confirmation of the experience of mental health clinicians working in these populations — that younger adults, in particular, have struggled during the pandemic with disruption of their normal activities, [having been ordered to] stay at home, restricted from being in outdoor public spaces. This really comes out in the data that these restrictions had a significant negative effect on people’s well-being,” he told MNT.

“Living through that disappointment of not being able to do something as normal as going to the park can be a very big setback for a young person who otherwise may have been just having a nontraumatic, normal upbringing and a normal life.”

– Dr. David A. Merrill

Dr. Young expressed some surprise at the racial differences in depression and anxiety scores.

“Asian Americans tend to report lower depression and anxiety compared with white people. On the other hand, Black people tend to have higher scores than white people, so this was unexpected, and I don’t believe it’s reflective of the general population,” she said.

She said this finding could be down to only 2.3{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of the cohort being Black adults.

“As far as the difference in the levels of depression and anxiety in terms of race and ethnicity, the data speaks for itself. There’s no definite explanation,” said Dr. Merrill.

For Dr. Mandelbaum, the tools that the team used to measure anxiety and depression levels might explain the finding.

“The tools, these objective measures, and the data pointed out cultural, racial differences. Looking at those in a nonbinary way can be misleading. I think the tools are limited because if you have 10 people in a room, and there are 10 people from 10 different countries, even if you’re asked the question in the same language, you will see how different people interpret it. These tools are very hard [to optimize] across different cultures or languages,” he said.

Meanwhile, Dr. Merrill said that the finding could possibly reflect an often overlooked reality for racial minorities.

“If you’re already more under stress based on systemic exclusion, or marginalization, [the pandemic may not have had] such a big impact. For a population who is already under stress, if you add on more stress, there may be less of a change compared with a group that has enjoyed privilege or a stress-free life. In the U.S., that kind of seems to be the reality,” he explained.

The study shows that future pandemics will need better planning and more careful thinking around people’s mental health. This could affect decisions to close down outdoor spaces, for instance.

Dr. Young acknowledged that fighting a novel virus has been tricky for all countries.

“I’m sure we all would like to have consistent messaging throughout the pandemic, but as the knowledge changes, so do the recommendations,” she said.

However, the study’s findings reiterate that even during an active pandemic, physical activity or spending time outdoors could help people maintain their physical and mental health.

“Governments should promote physical activity and spending time in nature during pandemics. Public health messages have been consistent about getting vaccinated, staying masked-up, frequent hand washing, and maintaining physical distancing. It would be great if they can include positive messages like going for brisk walks.”

– Dr. Deborah R. Young

Dr. Merrill pointed out that although there were a lot of unknowns during the initial lockdown about what constituted risky behavior, many studies have shown that being outdoors is not as risky as experts once thought.

“I think keeping public health decisions away from political battles and focusing on the science, the data, including this new information that we’ve learned, can help minimize the negative impacts of the decisions that are made,” he said.

He continued:

“[M]aking good use of the data and sharing information about what’s been learned can help decrease anxiety and prevent the imposition of unnecessary restrictions that don’t actually increase our safety and health but do significant harm. Hopefully, we can consider this a lesson learned and do better [in the future].”

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Long COVID may affect how women recover from exercise

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New research explores the link between long COVID and women’s ability to exercise. Artur Widak/NurPhoto via Getty Images
  • Long COVID or post-acute COVID syndrome is characterized by a multitude of symptoms that persist beyond the acute phase of 3–4 weeks after getting the SARS-CoV-2 virus.
  • Women hospitalized with COVID-19 are more likely to experience persistent deficits in cardiovascular and lung function than men in the months following discharge.
  • A new study found that even women with mild-to-moderate COVID-19 may experience slower declines in their resting heart rate after physical activity in the post-acute phase of the SARS-CoV-2 infection.
  • Such deficits in cardiovascular function during exercise are associated with reduced capacity for physical exercise and, potentially, activities of daily life.
  • Women presenting with specific long COVID symptoms, namely shortness of breath or joint or muscle aches, were also more limited in their ability to do a walking test than people who had had a SARS-CoV-2 infection but experienced no lingering symptoms.

Although the majority of individuals recover within the first 3–4 weeks after contracting COVID-19, a considerable number continue to experience lingering symptoms for weeks or months after this initial or acute phase of the disease.

These symptoms, which people refer to collectively as long COVID or post-acute COVID-19, include shortness of breath, loss of smell and taste, brain fog, headaches, and fatigue.

Studies have shown that more than half of the individuals hospitalized with COVID-19 during the initial phase of the SARS-CoV-2 infection show persistent impairments in cardiovascular and lung function several months after discharge. Furthermore, women hospitalized with severe COVID-19 are more likely than men to present with such persistent deficits in cardiovascular and lung function after discharge.

Individuals may present with persistent symptoms during the post-acute phase of COVID-19, regardless of the severity of symptoms during the acute phase of the illness. The effects of mild-to-moderate COVID-19 on lung and cardiovascular function and, subsequently, on daily physical functioning during the post-acute phase is not well-understood.

Researchers at Indiana University, Bloomington, recently examined how mild-to-moderate COVID-19 affected exercise capacity or tolerance during the post-acute phase in women. Exercise tolerance or capacity refers to the ability of an individual’s cardiovascular system to sustain physical activity.

The researchers used an exercise test called the 6-minute walk test to assess the persistent effects of SARS-CoV-2 infection on cardiovascular function in women during the post-acute phase of the infection.

They found that women with COVID-19 who had mild-to-moderate illness during the acute phase showed a slower decline in their heart rate after the 6-minute walk test than the participants in the control group. This difference was more pronounced in women actively experiencing long COVID symptoms.

However, encouragingly, they found no statistically significant differences in a range of other measures, including pre- and post-test oxygen saturations, pre- and post-test heart rate, ratings of perceived exertion, and ratings of perceived breathlessness.

The study’s lead author, Dr. Stephen Carter, a professor at Indiana University, told Medical News Today: “A puzzling feature of post-acute COVID-19 syndrome is the variable presentation of symptoms that appear to be independent of initial illness severity. The present work shows even those with mild-to-moderate initial symptoms can be affected with underlying cardiac-related irregularities with the potential to affect exercise tolerance and/or activities of daily living.”

“It’s also plausible that lingering symptoms, particularly muscle/joint pain and/or shortness of breath, may trigger a maladaptive pattern that accelerates systemic deconditioning. However, further research is needed.”

Dr. Ziyad Al-Aly, chief of research and education service at Veterans Affairs St. Louis Health Care System, also spoke with MNT. Dr. Al-Aly, who was not involved with the study, said, “Studies like this are important to help us understand why some people with long COVID experience profound exertional fatigue that may limit their ability to exercise and their ability to carry out activities of daily living.”

The study appears in the journal Experimental Physiology.

The study included 29 women who had experienced mild or moderate illness due to COVID-19. These women had received a positive SARS-CoV-2 diagnosis at least 4 weeks prior to the study, with the average time of diagnosis being 94 days before the study. The control group consisted of 16 women who had never tested positive for a SARS-CoV-2 infection.

Out of the 29 participants in the test group, 17 women reported experiencing at least one long COVID symptom at the time of the study. These long COVID symptoms included shortness of breath, fatigue, cough, muscle or joint pain, loss of smell or taste, and skin irritation.

The researchers administered pulmonary function tests to assess various aspects of lung function. They found that the women who had tested positive for SARS-CoV-2 exhibited reduced total lung capacity compared with those in the control group.

The researchers then evaluated changes in cardiovascular function during and after the 6-minute walk test. The test measures the distance that participants walk in 6 minutes at their normal pace, and researchers use it to assess exercise tolerance. The team adjusted the results for age, sex, and body mass index (BMI) to prevent these variables from influencing the test results.

There was no significant difference between the distances that the two groups covered during the test.

However, women with SARS-CoV-2 who experienced shortness of breath or joint or muscle pain had a lower adjusted distance value than those with SARS-CoV-2 who did not experience these long COVID symptoms.

The researchers assessed the blood pressure, heart rate, and blood oxygen or oxygen saturation levels before and immediately after the 6-minute walk test. They calculated the heart rate response during exercise by subtracting the heart rate at rest from the heart rate after the completion of the test.

The heart rate response during exercise is a measure of cardiovascular function, with a lower heart rate response being a predictor of reduced exercise capacity and cardiovascular disease-associated mortality.

The women in the SARS-CoV-2 group showed a lower heart rate response than those in the control group.

Moreover, the participants in the SARS-CoV-2 group who reported shortness of breath as a long COVID symptom at the time of the study had a lower heart rate response during the test than those in the SARS-CoV-2 group who did not have this symptom.

The researchers also measured heart rate recovery, which is another indicator of cardiovascular health and all-cause mortality.

Heart rate tends to drop immediately after strenuous exercise. Heart rate recovery measures the decrease in heart rate after the cessation of exercise. Specifically, heart rate recovery quantifies the decrease in heart rate at a predefined time interval — generally 1 minute — from the end of the physical activity.

In the current study, the researchers measured the participants’ heart rate at the end of each minute during the 5-minute recovery period after the 6-minute walk test.

The SARS-CoV-2 group participants showed a less significant decrease in heart rate at 1 minute after the completion of the test than those in the control group. This suggests that the decline in heart rate occurred more gradually in the women in the SARS-CoV-2 group. Such a delay in heart rate recovery is associated with reduced exercise capacity.

Furthermore, women in the SARS-CoV-2 group who exhibited specific long COVID symptoms at the time of the study had decreased heart rate recovery compared with the SARS-CoV-2 group participants without these symptoms.

Specifically, women in the SARS-CoV-2 group with symptoms such as fatigue, loss of taste or smell, joint and muscle aches, or shortness of breath had decreased heart rate recovery compared with women who had not had SARS-CoV-2.

“A lot of long COVID-19 patients are placed into rehabilitation programs that are designed for non-COVID-19 patients. These programs may not be suitable for long COVID patients. It is important to understand that people with long COVID need programs designed for them (pacing, etc.). Findings from this study and others should be taken into account when designing rehabilitation programs for people with long COVID,” said Dr. Al-Aly.

Dr. Carter noted: “SARS-CoV-2 participants and [people without the infection] were matched for age, BMI, smoking status, and history of cardiopulmonary disease. As such, we have better assurance that reported differences were attributed to SARS-CoV-2, as opposed to another comorbidity.”

“A strength of the work is that comparisons were performed among women — who appear to be susceptible to persistent SARS-CoV-2-related symptoms — during and following a 6-minute walk test.”

Dr. Carter acknowledged that the study had a few limitations. He said: “Indeed, the 6-minute walk test is a widely used clinical tool that offers insight into exercise capacity and walking autonomy. However, it should be noted we cannot disregard the possibility of undiagnosed pulmonary abnormalities and/or autonomic dysfunction that existed prior to a SARS-CoV-2 infection. Additionally, it is conceivable some controls may have had an asymptomatic SARS-CoV-2 infection and/or a previous false-negative diagnostic test for SARS-CoV-2.”

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Could herbs and spices lower blood pressure?

  • Large blood tension, or hypertension, raises the possibility of coronary heart condition and stroke, both of which are main leads to of death in the United States.
  • Nourishment advice on how to decreased blood stress generally features utilizing herbs and spices alternatively than salt to taste foods. However, authorities know little about the wellbeing added benefits of herbs and spices.
  • A new randomized managed demo implies that a diet plan rich in herbs and spices may perhaps minimize blood stress in men and women at chance of cardiovascular condition.

In accordance to the Centers for Disorder Regulate and Avoidance (CDC), approximately 50 {cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of grown ups in the U.S. have hypertension.

Untreated hypertension will increase the hazard of cardiovascular sickness, these as coronary heart assault, stroke, heart failure, kidney disease, eyesight reduction, and hurt to blood vessels.

Nutritional assistance on reducing blood stress consists of lessening salt ingestion. The Dietary Suggestions for Americans suggest working with herbs and spices rather of salt to taste foodstuff.

Specialists know a lot less about the overall health outcomes of herbs and spices than they do about all those of salt. Nonetheless, some experiments have demonstrated that herbs and spices can lessen lipemia — the extra of lipids in the blood — hyperglycemia, and oxidative pressure.

To dig a little further, scientists at Pennsylvania Condition College a short while ago done a randomized managed demo investigating the result of for a longer time-term use of herbs and spices on danger things for cardiovascular condition.

They located that a better level of herbs and spices in foodstuff decreased 24-hour blood stress readings.

The findings show up in the American Journal of Scientific Nourishment.

Prof. Penny Kris-Etherton, 1 of the guide authors of the examine, informed Professional medical Information Today, “Indeed, the blood force-lowering consequences of herbs and spices in an common Western diet plan were being astonishing to me.”

“We [already know] about the results of quite a few way of living variables, specifically dietary components, that can boost blood tension — these as sodium, alcohol, and caffeine — and other people that can minimize blood strain, these kinds of as potassium, magnesium, and calcium, […] excess weight loss, physical exercise, and some nutritional vitamins, which includes folate and vitamin D when consumption is low, but the blood pressure-lowering outcomes of herbs and spices are new!”

“In terms of herbs and spices,” she ongoing, “there has not been a clinical demo showing benefits on blood tension lowering until eventually our study.”

A overall of 71 contributors aged 30–75 yrs joined the analyze. All members experienced one or far more risk aspects for cardiovascular condition and had obese or weight problems.

After the contributors fasted for 12 hours, the researchers designed baseline assessments. These involved height, fat, waistline circumference, a fasting blood sample, and vascular tests.

Vascular screening integrated central and peripheral blood tension and arterial stiffness measurements. The members also wore a blood force watch for 24 several hours.

The researchers then randomly assigned the individuals to 1 of three teams. Every single team would take in one of a few weight loss plans: a low spice diet program, a reasonably spiced diet, or a significant spice eating plan. These eating plans included a day by day consumption of .5 grams (g), 3.3 g, and 6.6 g of herbs and spices, respectively.

The intention was to incorporate herbs and spices into a eating plan that was representative of the common U.S. diet plan. The extra herbs and spices provided cinnamon, turmeric, and oregano.

The participants adopted their respective diet programs for 4 months, with a 2-week break in concerning. At the stop of every diet regime time period, the members returned for follow-up assessments. A complete of 63 people today done the analyze.

The review showed that the high spice diet program tended to make improvements to 24-hour blood strain readings, when compared with the medium and very low spice meal plans.

The scientists did not notice any result of the weight loss plans on reduced-density lipoprotein cholesterol, clinic-calculated blood tension, markers of glycemia, vascular function, or oxidative strain.

Having said that, they say that 24-hour blood tension readings are a stronger predictor of cardiovascular demise than clinic blood stress measurement.

The authors imagine that the examine could possibly have been far too short for vascular reworking to happen, which might demonstrate why they did not see any influence on arterial stiffness.

They also note that the dosages of herbs and spices might not be sufficient to overturn the metabolic results of an unhealthy qualifications diet. For that reason, they are unable to endorse expanding consumption of herbs and spices by itself in the context of a very poor excellent diet program to decrease the possibility of cardiovascular ailment.

Furthermore, because every working day of the menu bundled various quantities of the 24 herbs and spices, exposure was not regular. As herbs and spices do not keep in the procedure for pretty prolonged, the food items eaten during the times closest to screening may possibly have influenced the outcomes a lot more strongly.

Dr. Simon Steenson, a nourishment scientist at the British Nourishment Foundation, explained to MNT, “This research implies there could be probable reward in terms of blood stress reduction for together with extra herbs and spices in just our food plan.”

“However,” he ongoing, “the results witnessed were small and not significant in between all levels of consumption. Whilst the authors recommend there may well be some advantage to including herbs and spices in a suboptimal diet regime, clearly, the purpose from a public wellbeing place of see need to be to enhance dietary styles in line with evidence-based mostly advice on eating plan and overall health.”

Prof. Kris-Etherton mentioned to MNT, “It will be significant to assess the outcomes of personal spices on blood strain and to fully grasp the mechanism[s] by which each and every lowers blood stress.”

“It would also be fascinating to assess the results of herbs and spices on the microbiome and assess whether or not the effects of herbs and spices on [blood pressure] are modulated by any variations in the gut microbiome.”

“Beyond scientific demo study, studies are required to appraise productive education systems that educate use of herbs and spices in a healthful dietary pattern that is decreased in sodium, saturated extra fat, and included sugar on food plan top quality and medical endpoints, these as danger aspects for continual diseases.”

Dr. Steenson concluded:

“It is vital to observe that whilst the goal of this examine was to look at the normal American diet plan, we require major shifts in average dietary patterns to make our taking in behaviors much healthier and far more sustainable. When certain foodstuff or substances may possibly have a tiny advantage by yourself, we require to encourage a shift to much healthier ingesting throughout the board.”

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‘Cupping’ technique could improve vaccine delivery

‘Cupping’ technique could improve vaccine delivery
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Inspired by ancient medicine, experts have tested a new technique to improve vaccine delivery. Pansfun Images/Stocksy
  • A team of researchers recently developed a novel way of delivering nucleic acid-based medicines using a method similar to an ancient cupping technique, Home Garden USA.
  • Their experiments indicate that the technique makes vaccine delivery more effective by several orders of magnitude.
  • The cupping technique is currently undergoing clinical trials to deliver a COVID-19 vaccine.

Over the past 20 years, scientists have developed a range of nucleic acid-based medicines as both treatments and vaccines.

Nucleic acids are present in all living cells, most notably as DNA and RNA.

Treatments and vaccines that use nucleic acids work by inhibiting, adding, replacing, or editing DNA and RNA in host cells.

How well these treatments and vaccines work depends on how well they can be delivered to the host’s cells. If directly injected into tissue, for example, most nucleic acids will rapidly degrade unless protected.

The Pfizer-BioNTech and Moderna COVID-19 vaccines are both nucleic acid-based medicines. Nucleic acids in these vaccines are enclosed and protected by lipid nanoparticles that deliver them across the host cell membrane.

Although they are effective, drugs delivered in this way are vulnerable to degradation during storage.

One delivery method for nucleic acid-based medicines is electroporation. This involves delivering nucleic acids to cells made more permeable using a pulse of electricity.

While somewhat effective, these electrical impulses can cause muscle contractions, tissue damage, and pain, and they may not be suitable for people who use implantable electrical devices such as defibrillators or pacemakers.

Using this method also requires substantial training, and equipment costs may make it inaccessible to regions and populations with fewer resources.

Creating a method for delivering nucleic acid-based medicines that overcomes unwanted side effects and cost barriers while still being effective could increase the accessibility of vaccines to areas with limited resources.

Recently, researchers from Rutgers, the State University of New Jersey in Piscataway, and GeneOne Life Science in Seoul, South Korea, developed a method based on an ancient cupping technique to deliver nucleic acid-based medicines.

“Development of enhanced delivery technologies plays an instrumental role in bringing nucleic acid-based biologics to broad use and clinical relevance, and worldwide vaccine distribution is just one example,” said senior study author Prof. Hao Lin.

“We have demonstrated an alternative, safe, and effective transfection platform that yields high levels of transgene expression.”

“The advantages also include device cost effectiveness, […] manufacturing scalability, and minimal requirements for user training,” he added.

“Because of the inherent advantages of DNA, not least of which is avoiding cold-chain requirements of other vaccines, this technology facilitates vaccination programs into remote regions of the world where resources are limited,” he added.

The study now appears in the journal Science Advances.

Cupping therapy is an ancient treatment method from the Middle East and China. It involves applying heated cups to the skin to create negative pressure and increase blood circulation to promote healing.

Since 1950, doctors have used the method in hospitals in China and elsewhere for conditions such as acne, facial paralysis, and dyspnea.

Although evidence of its health benefits is lacking, the authors of the new study decided to investigate a similar technique as a potential delivery method for nucleic acid-based medicine.

To test the method, the researchers gathered two groups of rats and injected both with DNA in the upper layers of their skin. One group received the “suction cup treatment” on their injection site, whereas the other group did not.

The researchers monitored the activity of the DNA with fluorescence microscopy. They found that gene expression from the vaccine was detectable at 4 hours post-vaccination. In the rats who also underwent cupping, however, gene expression was detectable at 1 hour post-vaccination.

At 24 hours post-injection, the researchers saw that gene expression was detectable eight times deeper under the skin among the rats who underwent cupping than among those who received DNA injections alone.

To investigate whether or not this technology could work to deliver potential COVID-19 vaccines, the researchers next injected the rats with a synthetic SARS-CoV-2 DNA candidate vaccine.

They split the rats into three groups:

  • The first group received two injections of the vaccine candidate without suction on days 0 and 14.
  • The second group received one vaccine, followed by dermal suction on day 0.
  • The third group received two vaccinations and dermal suction on days 0 and 14.

The researchers collected blood samples from the rats on days 0 and 14, before vaccination, and again on day 29.

They found that the rats who received cupping after the vaccine had a significantly stronger immune response than those who received the vaccine alone.

The researchers also found that immune responses in the rats who received a single vaccine followed by suction were not statistically different from those who received two vaccines followed by suction.

They also note that the rats who underwent suction had no evidence of tissue damage or lymphocyte infiltration in their injected areas.

The researchers say that the underlying mechanisms for suction-enhanced delivery are not clear. They hypothesize, however, that it may work via the CG pathway. This plays a role in determining which molecules travel through membranes and enter cells.

The researchers explain that it will be challenging to confirm the underlying mechanisms of cupping due to the complexity of the processes involved and a lack of availability of drugs used for testing.

Nevertheless, the researchers say that even without mechanistic understanding, it is still possible to improve the method.

“Currently, the procedure is two-step: an injection followed by suction,” Dr. Lin told Medical News Today.

“We are working on a combination device/method to render one-step application — that is, injection and suction in a single step by a single device,” he continued. “Furthermore, we are trying to reduce suction time even further to increase patient and staff acceptance.”

When asked whether this method could work for COVID-19 vaccines, Dr. Lin said, “Theoretically, this may be possible, but we cannot answer without testing since, except for DNA vaccines, COVID-19 vaccines are delivered into the muscle, whereas this device delivers [the] vaccine to the upper layers of the skin.”

“The [suction] device is being tested currently in phase 1 and phase 2 clinical trials of a COVID-19 vaccine. The documentation to enable filing with regulatory agencies for general and widespread clinical use is being readied,” he said.

The researchers conclude that cupping is a promising method for nucleic acid-based medicine delivery. However, further research is necessary to see whether it could work to deliver COVID-19 vaccines to humans.

“The suction device has numerous advantages relative to other devices for DNA vaccine delivery. First, it is very inexpensive and easy to use, requiring minimal training,” Dr. Lin told MNT. “Secondly, the device is run from a battery that is easily rechargeable.”

“Third,” he continued, “is the high degree of patient acceptance, as the device will help deliver DNA vaccines without pain or discomfort.”

“And fourth, unlike the significant setup times with other devices, this only requires changing out a cap and then pressing the power button; the machine will turn off in a few seconds.”

“This, coupled with the many advantages of DNA as a vaccine type — the greatest advantages being the ability to completely avoid the need for freezers from the clinician’s perspective, and low side effects and discomfort from the patient’s perspective — makes this an ideal vaccine platform for resource-limited and remote regions,” he concluded.

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Coronavirus Today – November 10


By Anne Blythe

Mandy Cohen, secretary of the state Department of Health and Human Services, has talked about her daughters many times as she helped steer the state through the COVID-19 pandemic.

Now the state gets to see them in a public service announcement about the kid-sized Pfizer COVID-19 vaccine that has just become available for children ages 5 to 11.

Cohen, the proud mother of a 7- and 9-year-old, took her children on Saturday to get a first dose of the two-dose Pfizer vaccine approved last week for emergency use by the Food and Drug Administration and the Centers for Disease Control and Prevention.

“Like most kids, my daughters don’t like shots,” Cohen told reporters at a briefing on Wednesday. “But we talked as a family about the reasons it was important to protect them from COVID just like we protect them from flu and other childhood illnesses like chicken pox.”

Then she showed a video that she said she hopes will help persuade other parents of the safety and efficacy of the vaccine. In clinical trials, according to data reviewed by Cohen, the CDC and FDA, the kid-sized dose of the Pfizer vaccine, a third of the amount in the vaccines given to anyone 12 and older, is 90 percent effective at preventing COVID infection in the younger children.

“We love our kids so much and we want to make good decisions for them and their health, and I was really happy that we have a safe and effective COVID vaccine,” Cohen says in a video showing her hugging her daughters. “And I was really proud of them today that they got their vaccine. It was a huge sigh of relief for mom. So I hope everyone goes out and gets their COVID vaccine for their kids as soon as possible.”

Cohen posted photos of her daughters to her Twitter account on Saturday. There is one of her older daughter getting her vaccine. Another one shows the two girls together after getting their shots. The 9-year-old gave a thumbs-up while revealing the colorful Band-Aid covering the spot on her left arm where she got the shot. The younger girl is smiling with her hands raised in the air.

They might have been celebrating, too, because chocolate milk was coming to them after their shots, their mother said.

Cohen’s girls are among the more than 24,000 children in North Carolina who have received their first dose of the newly available vaccine. Though children can experience side effects such as a sore arm, fever, headaches or feeling tired for a few days, Cohen said her daughters experienced no side effects.

“We have plenty of vaccine supply across the state. Kids can get vaccinated at any location that has a smaller dose of the Pfizer vaccine available,” Cohen said. “This includes their pediatrician or doctor’s office or hospital. Unlike other vaccines, younger children can also get vaccinated at local pharmacies and grocery stores, making it even easier for parents to find a convenient location for them.”

Additionally, DHHS has worked with community partners to set up nine family COVID-19 vaccination centers in historically underserved communities that will be open for the next six weeks. The centers will be open on weekends and during the evening so parents don’t have to take their children out of school or miss work to get a vaccine.

The centers also will have vaccines available for people older than 12, as well as boosters. Spanish interpreters will be there, too.

Cohen and Charlene Wong, a Duke pediatrician and the DHHS assistant secretary for children and families, know that many parents might have questions about the vaccine and tried to provide answers to many at the briefing with reporters. They also encouraged parents to talk with their pediatricians and other trusted health care providers about any concerns they have.

Here are some of the questions and answers:

Q: Two physicians asserted in a recent Wall Street Journal opinion piece that a low number of children in this country have been hospitalized or died from COVID infections. But the piece also cited data that have not been peer reviewed and have been contested.

So, what’s the urgency to get the younger children vaccinated?

A: To date, North Carolina has seen more than 1,300 hospitalizations and 11 deaths in children under the age of 17, out of 244,902 cases, according to data on the DHHS COVID-19 dashboard. Cohen and Wong made the point that although the risks of hospitalization and death from COVID are rare in children in that age group, the virus can make them very sick.

Some children infected with COVID have come down with the multi-system inflammatory syndrome, or Mis-C, a rare condition in which their organs can become inflamed and in some cases can be deadly.

Children also can experience long-COVID symptoms such as fatigue, headaches, insomnia, trouble concentrating, muscle and joint pain, as well as a lingering cough, months after infection, according to the CDC. 

“We are seeing that children can have longer-term side effects, fatigue, headache, muscle aches, lethargy, again, different kinds of tiredness. So we are seeing that in children and adults,” Cohen said. “And so I think what we want to do is say we have a tool here that is safe and effective at preventing your child from getting COVID in the first place. Let’s use that safe and effective tool to make sure they don’t get COVID.”

Q: How prevalent is long-COVID in children?