Health News Today Archives - Page 46 of 76

April 1, 2022

New guidelines may improve diagnosis, treatment

A folded hospital gown is placed on top of an envelope filled with documents — Endometriosis is a common gynecological situation that has an effect on 1000’s of women and women of all ages. Catherine McQueen/Getty Photos

Researchers in Europe have developed new tips for diagnosing and treating endometriosis.
They have produced sizeable updates to five critical regions in controlling the problem, which includes prognosis, cure, and recurrence.
The new guidelines could support people and clinicians superior realize and control the affliction.

Endometriosis is a condition in which tissue identical to the lining within the uterus grows outside the house the uterus. It affects all over 190 million — or 10{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} — of females and ladies of reproductive age all over the world.

Though some individuals with endometriosis are asymptomatic, frequent indications involve:

agonizing cramping, comparable to menstrual cramps
prolonged-phrase reduced again and pelvic agony
irregular intervals
bowel and urinary complications, including pain, diarrhea, constipation, and bloating
blood in the stool or urine
nausea and vomiting
fatigue
discomfort for the duration of intercourse
recognizing or bleeding among durations
infertility

While this is a prevalent situation, men and women often only get a diagnosis for it 8-12 a long time just after symptom onset. Extra precise guidelines could strengthen diagnosis and cure for people with the problem.

In a modern report, the European Culture of Human Copy and Embryology (ESHRE) formulated new clinical follow guidelines for diagnosing and dealing with endometriosis.

“These recommendations offer much better ways to manage and deal with endometriosis for medical professionals and hope and ease and comfort for millions of women of all ages who have felt frustrated and determined by this debilitating condition,” Dr. Sherry Ross, OB/GYN and Women’s Health and fitness Pro at Providence Saint John’s Wellness Center in Santa Monica, CA, advised Health care Information Nowadays.

Analysis

In the earlier 2014 recommendations, laparoscopy — a surgical procedure involving smaller inclusions in the abdomen to insert a digicam — was regarded as the gold standard diagnostic resource.

Thanks to modern breakthroughs in imaging modalities, operative risk, minimal entry to very-qualified surgeons, and economic implications, the ESHRE now only endorses laparoscopy if imaging results are damaging and treatment plans unsuccessful or inappropriate.

Agony remedy

The current guidelines now advocate GnRH agonist or GnRH antagonist therapies — which stop the ovaries from building sexual intercourse hormones by desensitizing the pituitary gland — as a next-line treatment method possibility.

They also say that NSAIDs may perhaps assist postoperative ache, the pointers note that this may perhaps affect conception if taken repeatedly.

Infertility therapy

Prolonged use of GnRH agonists prior to assisted replica techniques (ARTs) — such as in vitro fertilization — is no for a longer time advised to increase fertility owing to unclear added benefits.

In the meantime, the Endometriosis Fertility Index (EFI) was extra as a treatment method phase to assistance patients decide how to achieve pregnancy postsurgery.

Recurrence

The current pointers advise hormone remedies, together with combined hormonal contraceptives for at the very least 18-24 months after surgery to stop a recurrence.

They increase that Art does not maximize recurrence in women of all ages with deep endometriosis — a single nodule larger sized than 1 centimeter (cm) in diameter outside the house the uterus or close to the lessen 20 cm of the bowel.

In conversation with MNT, Dr. Yen Hope Tran, OB/GYN at MemorialCare Orange Coast Health-related Heart in Fountain Valley, CA, famous that the tips also advocate surgeons “perform cystectomy as a substitute of drainage and coagulation, as cystectomy cuts down recurrence of endometrioma and endometriosis-involved ache.”

Adolescence

“Often, endometriosis manifests in adolescence, even early adolescence, but teens are not likely to know that their ache and other signs or symptoms are not the norm,” said Dr. Tran. “Period discomfort in the course of this time is not usual.”

“Teens and their physicians frequently never handle endometriosis — or endo signs and symptoms — in the number of meetings they are probably to have. I obtain it beneficial to ask about them acquiring to miss out on lessons/skip university for the reason that of their signs and symptoms,” she additional.

When diagnosing and treating adolescents, the tips advise clinicians very carefully investigate achievable danger components for endometriosis, such as positive loved ones record, obstructive genital malformations, early first menstruation, and a quick menstrual cycle.

To treat endometriosis in adolescents, they propose hormonal contraceptives or progesterone as initially-line hormone treatment.

The American University of Obstetricians and Gynecologists recommends NSAIDs as the mainstay of suffering aid for adolescents with endometriosis.

The Entire world Wellbeing Group (WHO) also endorses that if GnRH agonists are viewed as for adolescents and younger women, the possible side results and prolonged-time period health and fitness risks must initial be reviewed with a clinician in a secondary or tertiary environment.

“[The guidelines emphasize] preservation of fertility. Adolescents with endometriosis should really be informed of the risk of turning into infertile so that they can make a extra informed selection about early surgical intervention, preservation of oocytes, and other actions should really they ever want to have young children,” explained Dr. Tran.

The ESHRE hopes that the new recommendations will aid equally people and healthcare pros in much better knowing and dealing with endometriosis.

When asked what the key points are for people and clinicians to be mindful of from these pointers, Dr. Tran stated:

“Endometriosis is a really serious disease. It triggers possibly as a lot as 50{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of all cases of infertility [and] each individual case is diverse. Any correlation in between receiving pregnant and going through relief of endometriosis signs or symptoms are regarded as rare, and volume to wishful contemplating.”

“Endometriosis recurs quite commonly, and no a single therapy is correct for each individual client or each circumstance. Later on in lifestyle, different remedies may perhaps be called for. You’re never ever out of the woods with endometriosis. Destruction from endo carries on to induce complications for females even soon after menopause,” she described.

“Talk to your health care provider, really don’t place off therapy. Reduction from symptoms is possible. Preservation of fertility wants to start out straight away endometriosis is major and need to be taken seriously,” she concluded.

March 31, 2022

Tanning injections, nasal sprays harmful to health

A person holds their arms up against a wall as the sun shines through the blinds — Melanotan II-containing tanning products and solutions, marketed as injections or nasal sprays, are dangerous to wellness. Maria Maglionico/EyeEm/Getty Images

Some social media influencers have been promoting tanning products and solutions made up of an illegal hormone identified as “melanotan II.”
Study has linked melanotan II to conditions including pores and skin most cancers and kidney infarction.
Authorities say that individuals need to keep away from unregulated tanning solutions, and regulators must do more to increase public consciousness about their dangers.

Some social media influencers have a short while ago been marketing tanning products made up of melanotan II, an illegal synthetic hormone that can speed up tanning. These products come in the variety of injections and nasal sprays.

Authorities in many countries have issued safety warnings surrounding melanotan II’s use because of to its website link to circumstances this sort of as pores and skin most cancers and kidney infarction.

To have an understanding of extra about melanotan II, Healthcare News Right now spoke with four industry experts about the risks of utilizing the hormone, what regulators could do to avert its use, and harmless solutions.

“Melanotan II is a synthetic melanotropic peptide that is not controlled by the Foodstuff and Drug Administration (Food and drug administration) and is not accredited for human use,” claimed Dr. Anand N. Rajpara, affiliate professor of Dermatology at the College of Kansas.

“It is possibly injected into the pores and skin or inhaled by the nose. It performs by stimulating our melanocytes to make the skin darkening pigment melanin,” he discussed.

In conversation with MNT, Dr. Faraz Mahmood Ali, from the Office of Dermatology and Wound Healing at Cardiff College, the United Kingdom, outlined numerous side outcomes of the drug:

“Furthermore, there are extensive-time period issues about the improved possibility of creating new moles and skin cancers these kinds of as melanoma,” said Dr. Ali.

Dr. Elena Minakova, assistant professor of pediatrics at Washington College College of Drugs, added that setmelanotide, a not too long ago Fda-authorized drug for obesity-involved genetic syndromes, is effective likewise to melanotan II.

Its side outcomes, she reported, as a result overlap with individuals for melanotan II and also involve:

melancholy
nausea
stomach agony
again agony
upper respiratory tract infection

When requested what regulators could do to reduce people today from applying melanotan II, Dr. Faraz reported “[t]listed here demands to be increased awareness pertaining to the prospective harms of working with melanotan, in particular for the youth who may possibly be subject matter to misinformation.”

“Social media and other preferred news and media shops need to do far more to stamp out fake or deceptive information [while] making it possible for professionals to disseminate scientifically-exact data,” he added.

“More scientific studies and situation reports are required to determine extensive-phrase unidentified harms and aspect-outcomes. Folks wanting to take into account tanning choices must do so by talking about selections with a skin doctor,” he spelled out.

MNT also spoke with Prof. Tony Cass, professor of chemical biology at Imperial Higher education London, the U.K., who was included in a latest examination of 10 tanning kits.

When Prof. Cass and his colleagues predicted to obtain all over 10 elements in a certified treatment, they had been stunned to learn that some of the products analyzed contained in excess of 100 unknown components, alongside melanotan II.

“With unregulated/ illegal solutions, the label has no facts, and as our assessment confirmed there were being lots of other constituents, [and] there is no way for the purchaser to discover out what these are,” Prof. Cass informed MNT. “Regulation is very hard in this circumstance, specifically as net influencer-based advertising is in any case tricky to manage.”

“Making consumers aware may well assistance, while as we see with smoking cigarettes, even lurid warnings really do not necessarily get the job done. Internet corporations […] could use AI [artificial intelligence software] to place a warning on the screen, but I’m not guaranteed they have the will to do so,” he extra.

“We by now know about the detrimental outcomes of chronic sun publicity, together with skin cancers and untimely ageing. Therefore, this strategy of tanning should usually be avoided,” Dr. Ali emphasised.

“‘Sunless tanning’ options are the safest to look at in the prolonged-expression which contain spray-on bronzers and stainers. A person should constantly seek the advice of a dermatologist to talk about likely challenges, aspect outcomes, and positive aspects prior to embarking on any new treatment plans.”

– Dr. Faraz Mahmood Ali

Dr. Rajpara agreed that spray-on alternatives could be an substitute:

“Sunless tanners and sprays containing DHA (dihydroxyacetone) are commonly viewed as risk-free as very long as you are preventing inhalation and eye get in touch with. Nevertheless, they provide zero sunlight defense, so sunscreen is however a must.”

March 30, 2022

U.S. Health Officials Clear Second Booster for Those 50 and Older

Credit score…Shannon Stapleton/Reuters

It has long been very clear that Black People in america have professional superior fees of coronavirus an infection, hospitalization and demise during the pandemic.

But those aspects are now leading specialists to audio the alarm about what will may perhaps occur next: a prevalence of very long Covid in the Black neighborhood and a deficiency of obtain to cure.

Extensive Covid — with continual indications like tiredness, cognitive difficulties and others that linger for months right after an acute coronavirus an infection has cleared up — has perplexed scientists, and a lot of are doing work difficult to locate a remedy for people today experiencing it. But health and fitness experts warn that vital information is lacking: Black People have not been sufficiently included in very long-Covid trials, treatment method systems and registries, according to the authors of a new report introduced on Tuesday.

“We expect there are likely to be higher limitations to obtain the methods and companies accessible for prolonged Covid,” claimed 1 of the authors, Dr. Marcella Nunez-Smith, who is the director of Yale University’s health fairness office environment and a former chair of President Biden’s well being fairness process force.

“The pandemic isn’t over, it isn’t about for anybody,” Dr. Nunez-Smith mentioned. “But the actuality is, it’s surely not around in Black The united states.”

The report, termed the Point out of Black The usa and Covid-19, outlines how disinvestment in health care in Black communities contributed to Black folks contracting Covid at increased costs than white people. Black individuals were being then extra most likely to face critical health issues or death as a final result.

The Black Coalition Versus Covid, the Yale College of Drugs and the Morehouse Faculty of Medicine were authors of the report, which also presents suggestions to policy leaders.

In the initial 3 months of the pandemic, the typical weekly case charge for each 100,000 Black People was 36.2, in comparison with 12.5 for white Americans, the authors create. The Black hospitalization charge was 12.6 for every 100,000 people today, when compared with 4 for every 100,000 for white individuals, and the dying charge was also greater: 3.6 per 100,000 compared with 1.8 for each 100,000.

“The severity of Covid-19 between Black People was the predictable final result of structural and societal realities, not dissimilarities in genetic predisposition,” the report says.

Black People have been overrepresented in crucial-worker positions, which improved the danger of publicity to the virus, the authors compose. And they have been also far more probably than white Individuals to stay in multigenerational houses or crowded areas, be incarcerated, or are living in densely populated parts.

Several Black Us citizens who contracted the coronavirus knowledgeable critical disease simply because of pre-current circumstances like weight problems, hypertension and serious kidney disease, which by themselves had been frequently the final result of “differential access to higher-high quality treatment and health advertising and marketing means,” the report suggests.

The authorization of the first coronavirus vaccines was witnessed by quite a few authorities as a gentle at the end of the tunnel, but new disparities emerged, pushed by each vaccine hesitancy and minimal entry to the pictures.

However the hole in vaccinations has due to the fact narrowed — 80 percent of Black Americans have been totally vaccinated as of January, when compared with 83 {cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of white Americans, the report claims — disparities persist.

“We have an understanding of that there remains unfinished operate however to do to save and safeguard our communities from the Covid-19 pandemic,” wrote Dr. Reed Tuckson, who in April 2020 co-established the Black Coalition Versus Covid.

And when it arrives to unfinished get the job done, lengthy Covid is top of thoughts.

“So much of even obtaining a extensive Covid prognosis is tied to obtaining had a good exam suitable at the starting,” stated Dr. Nunez-Smith, adding that early on in the pandemic, many Black Us residents “weren’t capable to secure a examination and in some situations, had been denied testing.”

She emphasized the importance of investing adequate resources into learning extensive Covid. “Like every little thing else, with out intentionality, we’re not heading to get to equity there,” she said.

Correction:

March 29, 2022

An earlier version of this item described incorrectly the normal charge of weekly conditions, hospitalizations and deaths from Covid amongst Black Individuals in the initially three months of the pandemic. They had been premiums for every 100,000 persons, not percentages. An previously version also involved outdated figures supplied by the Black Coalition In opposition to Covid that the corporation revised just after publication.

March 29, 2022

Diabetes, mealtimes, and heart health: What’s the link?

A person eats a burger outdoor while taking in the view of an evening city skyline. — When to try to eat and what to eat may well be the vital to cardiovascular well being and running diabetic issues, in accordance to new research. Johner Illustrations or photos/Getty Pictures

Scientists have discovered proof that the time a human being eats their foods can affect their cardiovascular wellbeing.
Having said that, is there a relationship in between the specific sorts of food eaten at unique times of the working day and cardiovascular overall health?
In the present observational study, the scientists located that ingesting some foods at distinct instances of the day is connected to an elevated possibility of cardiovascular sickness mortality in folks with diabetes.

Mealtimes may perhaps influence cardiovascular well being in people with diabetic issues, in accordance to new exploration.

A new research, released in the Journal of Scientific Endocrinology & Metabolic rate, lays the groundwork for additional exploration to affirm the results and see if the association recognized by the examine authors is causal.

According to the Centers for Disease Control and Prevention (CDC), diabetic issues is a long-phrase ailment that impacts how a particular person is in a position to transfer sugar from the bloodstream into the cells of the entire body.

This movement of blood sugar is normally controlled by insulin. If a person’s entire body does not respond to insulin effectively, or if their human body does not make plenty of insulin, then their blood sugar concentrations raise.

The Countrywide Institute of Diabetes and Digestive and Kidney Conditions notes that a man or woman with diabetes is also at danger of other cardiovascular disorders these as heart condition or stroke.

Scientists have observed that changing a person’s food plan is a critical way a individual can stop or delay the enhancement of diabetes or better control the disease.

In addition, researchers have also found evidence that for cardiovascular illness prevention, what matters is not only what a particular person eats but when they consume.

In the current analyze, the researchers needed to go a phase even further and see if they could hyperlink the time of taking in specific food items to amplified cardiovascular threats for folks with diabetic issues.

Healthcare News Today spoke to Dr. Wei Wei — of the Division of Nourishment and Foodstuff Cleanliness, Faculty of Public Overall health, Harbin Healthcare College, Harbin, China — and a corresponding writer of the study.

“Chrono-nourishment, as an emerging subject of nutritional investigation, aims to understand how meal periods affect wellness.”

“In earlier investigation, our workforce has identified that in addition to the quantity and top quality of food stuff, intake time of food plan is also significant for diabetic issues individuals. Diabetes folks consuming more electrical power and macronutrients in the evening could injury their lengthy-expression survival.”

“Therefore, we even more analyzed the consequences of consumption time of food stuff teams on overall health to help diabetic issues clients opt for sensible foodstuff and their ideal intake instances,” claimed Dr. Wei.

To do this, the scientists analyzed details from the United States Countrywide Health and fitness and Diet Evaluation Study. The researchers looked at info from 4642 people today with diabetic issues in between the years 2003 to 2014.

The individuals self-reported the styles and moments of meals they ate for 2 nonconsecutive times. The researchers then joined this data to data on no matter if the participants went on to die of cardiovascular condition.

The scientists found some associations amongst the timing of taking in unique foodstuff and the threat of mortality from cardiovascular disorder.

For illustration, they discovered that individuals who ate starchy vegetables this kind of as potatoes in the morning, full grain in the afternoon, darker greens — these kinds of as broccoli — and milk in the evening, and refrained from ingesting processed meats in the evening, experienced a reduce hazard of dying of cardiovascular sickness.

Dr. Wei proposed there may possibly be two things that account for the noticed results.

“First, mechanistically, a lot of gene expressions have their circadian rhythm, this sort of as the glycolipid metabolism, [which] is increased in the morning, and melatonin synthesis, inflammatory and oxidative stress are bigger in the night. Consequently, foodstuff ingestion-time need to be in line with the corresponding metabolic rhythm.”

“Second, in addition to the purely natural circadian cycle, foodstuff is also a critical element in regulating the body’s circadian rhythm. And a rational foods consumption could restore the rhythm problem for diabetes.”

“Therefore, our outcomes supply a greater interpretation of why people should shell out additional awareness to healthy rhythmic taking in,” said Dr. Wei.

MNT spoke with Prof. Roy Taylor, Professor of Medicine and Metabolism at the Translational and Medical Study Institute, Newcastle University, United Kingdom.

Prof. Taylor, who was not included in the study, cautioned on the extent to which the knowledge in the review supported the summary that switching the moments of consuming precise meals could reduce the cardiovascular possibility for individuals with diabetic issues.

“This is a review of statistical associations, and the difficult details are not easy. The paper presents no evidence that switching to try to eat starch ahead of midday affects a person’s danger of mortality — that can only be founded by a controlled intervention research to test this improve in taking in.”

“The statistical associations described will be confounded to some degree by the associations which have been neither measured nor reported.”

“The statistical observations — which of study course in them selves may possibly be valid — require to be examined in a good research before any clinically beneficial alterations to taking in can be determined,” stated Prof. Taylor.

MNT also spoke with Dr. Kristen Brandt, a Senior Lecturer at the Human Nutrition Investigation Centre and a colleague of Prof. Taylor at Newcastle College.

Dr. Brandt agreed with Prof. Taylor that there are possible to be other confounding aspects that the examine authors have not accounted for. She also highlighted that the statistical electricity of the findings may be low thanks to the a lot of feasible associations the study authors analyzed for.

Dr. Brandt claimed a great deal could be done to further more develop the research.

“The acceptable future stage is to have out the same style of association assessment on numerous other comparable datasets gathered in other research, if possible from distinct countries and food cultures. If a variety of independent datasets regularly clearly show the very same sort of results, then the association is reproducible, not just a random coincidence.”

She also pointed out that it would be worthwhile to make investments a lot more targeted study to check out what might be triggering the association among food instances and cardiovascular health in folks with diabetes.

“This indicates to initial style and design and have out scientific studies with pertinent animal versions, to investigate the mechanism of a biologically related impact if this is prosperous, the upcoming step is a human intervention review, where the confounders can be managed by randomization.”

“If such a examine — which is a great deal extra high priced than evaluation of existing datasets — still shows an influence, then, and only then, it turns into relevant to think about how the new being familiar with can be carried out in exercise, these kinds of as ‘individualized dietary therapy designs,’” mentioned Dr. Brandt.

March 28, 2022

Lithium may reduce dementia risk

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According to a modern research, lithium could guard towards establishing dementia later on in life. Jasmin Merdan/Getty Images

A new examine concludes that lithium exposure could lessen the risk of dementia in people today over the age of 50.
Preceding reports have demonstrated that lithium disrupts the generation of proteins in the mind that are connected with Alzheimer’s illness.
The retrospective cohort examine also shown that men and women with mental health and fitness disorders who were being approved lithium had a reduce threat of building dementia.

According to the Globe Wellness Firm (WHO), conditions of dementia have been raising by 10 million every single year, globally. This is thanks in component to an getting older populace for the reason that the risk of producing dementia increases with age.

With this maximize comes a substantial well being and social treatment price tag. In simple fact, researchers believe that that delaying dementia onset by just 5 a long time could lessen its prevalence and financial influence by as considerably as 40{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809}.

The leads to of dementia are both environmental and genetic and there are a variety of things that can increase the threat of establishing dementia.

Even though some investigate has proven that folks with bipolar affective dysfunction have a greater threat of producing dementia, a recent research gives an appealing new viewpoint.

The retrospective cohort examine identified that people who experienced been uncovered to lithium — a drug that is sometimes prescribed to persons with bipolar affective ailment and major depressive problem — were being considerably less most likely to create dementia.

The results of the investigate seem in the journal PLOS Drugs.

Dr. Christopher Weber director of world-wide science initiatives at the Alzheimer’s Affiliation, who was not involved in the research, informed Medical Information Today:

“[O]verall, when I seemed at the paper, I was quite interested and fired up about it because we’re hunting at new ways to have an understanding of and potentially handle, slow, and avoid dementia. And this is just another avenue that scientists are on the lookout at […] to decrease your threat for dementia.”

To investigate, researchers from the College of Cambridge in the United Kingdom accessed electronic medical information. They received these from secondary mental overall health products and services in Cambridge and Peterborough National Health Provider (NHS) Basis Have faith in.

They in comparison the information of 548 people today who experienced been approved lithium with 29,070 men and women who experienced not taken the treatment.

None of the contributors experienced dementia at baseline and all ended up aged 50 many years or more mature. Their signify age was 73.9 decades.

The medical information offered details about participants’ body weight, BMI, ethnicity, diabetes, cardiovascular disorder, smoking cigarettes, marital position, and other components that could impact the investigation.

Practically a few-quarters of folks prescribed lithium experienced bipolar affective ailment.

The members who experienced taken lithium had been followed for a suggest of 4.8 many years (1–14.9 yrs) and 9.7{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of the individuals were identified with dementia throughout this time. This included 6.8{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} with Alzheimer’s sickness and 2.6{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} with vascular dementia.

Those who had not taken lithium ended up adopted for an normal of 4.3 yrs (1–14.9 yrs). In this group, 11.2{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} made dementia, which include 8.1{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} with Alzheimer’s sickness and 2.6{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} with vascular dementia.

Despite the fact that the examine was smaller, even following accounting for other components, the protective impact of lithium remained statistically major.

The result was most pronounced in people today who experienced taken lithium for much less than 1 12 months or far more than 5 decades.

MNT spoke with Prof. Rob Howard, a professor of outdated age psychiatry at College Higher education London who was not associated in the investigate. He reported:

“There’s an enzyme identified as glycogen synthase kinase, or GSK3, which is associated in the abnormal phosphorylation of tau protein, which makes tangles in Alzheimer’s illness. And lithium is a strong inhibitor of that enzyme. [..] This is not the first review to have shown the url involving lithium use and decreased prospective chance.”

The authors warn that, when the outcomes had been astonishing, they are not necessarily generalizable to the broader population. The key rationale for this is the fairly little variety of men and women who were having lithium.

They simply call for experts to conduct similar studies in bigger extra numerous populations.

New diagnostic techniques could aid determine persons in the very early levels of dementia said Prof. Howard. This could be utilized to discover individuals for long run trials investigating whether lithium could hold off the onset of dementia.

He believes that the next methods really should include “a trial in quite early, incredibly moderate Alzheimer’s sickness, just to see if you can display some impact of slowing the development of the condition around a few of decades.”

Posted on March 27, 2022
Does the COVID-19 surge in Asia have implications for the US?

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Hong Kong has seen a surge in COVID-19 cases, but is the same situation likely to occur in the United States? Image credit: Louise Delmontte/Bloomberg via Getty Images.

Countries and regions such as New Zealand, Singapore, and Hong Kong have recently experienced a surge in COVID-19 cases attributed, in large part, to the Omicron BA.2 subvariant.

These places followed a “zero-COVID” policy until recently, but have seen cases rise dramatically over the past month. These surges are unlikely to indicate whether the United States will follow a similar pattern.

Previous COVID-19 waves in the U.S. have largely paralleled those occuring across Europe, so soaring BA.2 infections in the United Kingdom and Germany could suggest a forthcoming surge in the U.S.

Experts say a rise in COVID-19 cases in the U.S. is likely, but the amplitude that a new wave of BA.2 infections might reach remains uncertain.

Countries and regions such as Singapore, Hong Kong, and New Zealand, which were able to keep their number of COVID-19 cases under control for most of the pandemic, are currently experiencing a surge in cases.

These countries previously adopted a COVID-19 elimination strategy or a “zero-COVID” policy, which aimed to reduce the incidence of new cases to naught. This policy involved strict rules involving border controls, contact tracing, mass testing, quarantine, and self-isolation.

Dr. Michael Baker, a professor of public health at the University of Otago, Wellington, told Medical News Today that this elimination policy pursued by many countries in the Asia-Pacific region was “generally very successful during the first 12-18 months of the pandemic when vaccines were not widely available.”

“Keeping COVID-19 cases at very low levels for much of this time has resulted in low hospitalizations and deaths, and has protected the economies in many jurisdictions in this region, including China, Hong Kong, Taiwan, Singapore, Australia, and New Zealand,” he added.

However, Dr. Baker underlined that this response had been jeopardized by the emergence of the more infectious Delta and Omicron variants.

He said that the wide circulation of Omicron had forced Singapore, Australia, Hong Kong, and New Zealand to transition from elimination to mitigation approaches.

The emergence of the Omicron BA.2 subvariant, which initial reports suggest is more transmissible than BA.1, may be at least partly responsible for the recent surge in COVID-19 cases in these countries.

While mortality rates due to COVID-19 have remained relatively low in most nations that previously implemented a “zero COVID-19” policy, Hong Kong recently reported the world’s highest COVID-19 death rate over a 7-day period.

According to experts, a major reason for a large number of hospitalizations and deaths in Hong Kong is the low vaccination rate in the vulnerable older population.

Although vaccination rates among the general population are reasonably good, a significant percentage of the older population remains unvaccinated, which may partly explain why COVID-19 cases skyrocketed in February.

Complacency due to a low number of COVID-19 cases in the community before the emergence of Omicron and vaccine hesitancy led to poor vaccine uptake among these demographics earlier in the pandemic.

New Zealand, in contrast, has kept its hospitalizations and deaths low despite a surge in cases. This is likely due to immunity, experts say, as New Zealand currently has one of the highest vaccination rates in the world, with 95{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of individuals over the age of 12 years vaccinated.

“Those countries that were able to achieve high vaccine coverage before entry and widespread circulation of the Omicron variant have been able to keep their hospitalization and death rates low. That is the case in New Zealand in particular, which still has the lowest COVID-19 mortality rate in the OECD,” Dr. Baker noted.

In contrast to other Asian countries, mainland China has persisted with the elimination policy, and there have been outbreaks due to Omicron, especially in the Jilin province and the city of Shenzhen. Yet, the number of deaths due to COVID-19 has been limited so far, and the following few weeks will determine China’s ability to persist with the policy.

Many European nations — including Germany, the U.K., France, and the Netherlands — have also been experiencing a COVID-19 surge due to the BA.2 variant. The U.K., for example, reported a 7-day average of over 89,000 cases and 127 deaths as of March 18, 2022.

Experts believe that prematurely removing protective measures against COVID-19 may have contributed to this rise in BA.2 infections. The higher contagiousness of the subvariant and waning immunity from either vaccines or previous SARS-CoV-2 infections may have also played a part.

“This [surge] may be exacerbated by the widespread loosening of restrictions including indoor mask mandates in public places and schools, and the decision by many businesses to have their employees fully return to the workplace,” said Dr. Davidson Hamer, professor of global health and medicine at Boston University.

Previous waves of SARS-CoV-2 infections in Europe have often played out similarly in the U.S., albeit a few weeks later. Both regions have also employed similar pandemic strategies: a mitigation policy focused on limiting the spread of SARS-CoV-2 in the community rather than complete elimination.

There have been some signs of an increase in COVID-19 cases in the U.S.

Early signs of BA.2 in wastewater

The proportion of COVID-19 cases due to the BA.2 variant increased from 12.6{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} to 22.3{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} between March 5-12, 2022. Despite a decline in cases and hospitalizations in recent weeks, wastewater samples collected from certain communities suggest a potential increase in COVID-19 cases in the forthcoming weeks.

Individuals with a SARS-CoV-2 infection can start shedding the virus in feces before other COVID-19 symptoms emerge. Thus, the SARS-CoV-2 RNA levels in wastewater samples can predict COVID-19 cases in the community.

CDC wastewater surveillance data indicate an increase by at least 10{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} in SARS-CoV-2 levels at 162 out of the 469 active sites.

“Since there have been some concerning epidemiological data in recent weeks including increased viral RNA levels in wastewater and increased cases in some locations around the country, there may be an increase of COVID-19 cases this spring similar to what several countries in Europe are seeing,” said Dr. Hamer.

Although experts expect an uptick in COVID-19 cases in the U.S. due to the BA.2 subvariant, there is a lack of certainty about its extent. This uncertainty stems from the differences between the current pandemic situations in the U.S. and Europe.

For instance, some European nations, such as Spain, have had stringent COVID-19 restrictions, including outdoor masking, which were only lifted recently.

In contrast, the U.S. has had few restrictions since last summer. Such differences in public health policies may have the potential to influence patterns of SARS-CoV-2 transmission.

Since its emergence, the BA.2 variant has been competing with other Omicron subvariants BA.1 and BA.1.1 and is proving to be more transmissible.

“The data from other parts of the world suggest that BA.2 is highly contagious, but not more severe than BA.1. There have been some reports of BA.2 reinfecting individuals who were recently infected with BA.1, but this seems to be relatively rare,” Prof. Lauren Ancel Meyers, director of the University of Texas at Austin’s COVID-19 Modeling Consortium, also told MNT.

“In projecting what might happen in the coming weeks, we have to consider both the infectivity of BA.2 and recent policy and behavior relaxation in the U.S. that might fuel more rapid transmission,” she added.

Yet the Rockefeller Foundation’s Pandemic Prevention Institute has pointed out that the BA.1.1 subvariant has been more prevalent in the U.S. than in the U.K.

It notes that BA.1.1 has been the dominant Omicron subvariant in the U.S. and that the increase in the prevalence of BA.2 has been more gradual. In other words, the rise of BA.2 seems to have followed a different trajectory so far in the two nations.

Sewage samples not worrying

The Pandemic Prevention Institute has also pointed out that the CDC’s wastewater surveillance data only reveal a relative increase in SARS-CoV-2 RNA levels. Thus, if the initial viral RNA levels in sewage samples were extremely low, even a 1,000{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} increase would only suggest a modest increase in actual cases.

“Based on what we are currently seeing, I do not expect the presence of BA.2 to drive a surge in cases in the near future. With both Delta and Omicron, there was a very clear pattern. We would detect the new variant in the wastewater from a community, and within 2-3 weeks there was a surge in SARS-CoV-2 RNA in wastewater which coincided with an increase in patients. This pattern was very predictable,” said Dr. Marc Johnson, a virologist at the University of Missouri.

Dr. Johnson said his observations so far have not indicated a similar scenario:

“I have been seeing BA.2 in Missouri sewer sheds every week for the last 10 weeks, and it is currently in about a third of the sewer sheds. It is slowly displacing BA.1 and is the dominant lineage in several of the sites. However, we have not seen a single location where this coincides with an increase in SARS-COV-2 RNA in wastewater or in cases.”

Although COVID-19 case patterns in the U.S. have largely echoed those in the U.K., as the spread of the Alpha variant showed, that has not always been the case.

“The ‘BA.2 wave’ looks a lot more like the Alpha wave in Missouri. Exactly 1 year ago, Alpha (B.1.1.7) was slowly moving through our state and displacing all of the other lineages. However, it never caused a surge in cases like it did in Europe,” Dr. Johnson emphasized.

Although Omicron and its subvariants seem to cause less severe disease than previous SARS-CoV-2 variants, the high death rates in Hong Kong underscore the importance of immunity — both from COVID-19 vaccines and prior SARS-CoV-2 infections.

A recent Danish study suggests that the risk of BA.2 infection following a BA.1 infection is low. With a considerable portion of the U.S. population exposed to the BA.1 variant, this may also reduce the risk of BA.2 infections in the short term.

Although the protection conferred by COVID-19 vaccines against infection with Omicron tends to wane after a few months, evidence suggests that COVID-19 vaccines remain effective at preventing severe disease.

However, the lower vaccination rates in the U.S. compared to the U.K. have raised concerns about the potential toll of a second Omicron wave.

In the U.S., about 65{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of individuals are fully vaccinated, and only 44.6{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} have received the booster shot. In contrast, around 85.8{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of eligible individuals in the U.K. have been vaccinated, and 67.3{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} have been immunized with a booster shot.

Dr. Hamer said vaccine rollout was crucial in states with low coverage.

“The U.S. needs to continue widespread testing, figure out ways to allow people who self-test at home to have their antigen tests results make it into the broader public health surveillance systems, continue sequencing a reasonable proportion of positive samples, and carefully track the impact of rising cases on hospitalization rates — and be ready to reinstate mask mandates if the situation greatly worsens,” he advised.

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