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Eye tests predict Parkinson’s-linked cognitive decline 18 months ahead

Simple vision tests can predict which people with Parkinson’s disease will develop cognitive impairment and possible dementia 18 months later, according to a new study. In a related study, the researchers also found that structural and functional connections of brain regions become decoupled throughout the entire brain in people with Parkinson’s disease, particularly among people with vision problems.

‘We know this is real’: New clinics for coronavirus long-haulers crop up in U.S.

COVID-19 came early for Catherine Busa, and it never really left.The 54-year-old New York City school secretary didn’t have any underlying health problems when she caught the coronavirus in March, and she recovered at her Queens home.But some symptoms lingered: fatigue she never experienced during years of rising at 5 a.m. for work; pain, especially in her hands and wrists; an altered sense of taste and smell that...

Canada will receive zero Pfizer vaccine deliveries during last week of January

The man in charge of Canada’s coronavirus vaccine rollout logistics has confirmed that the country will not receive any Pfizer vaccine doses during the week of January 25, due to delivery delays that have hit countries around the world.“We are now seeing that our entire expected shipment is deferred for next week, and then the numbers start to pick back up in the first weeks of February,” Maj.-Gen....

Clumsy kids can be fit too

Clumsy kids can be as aerobically fit as their peers with better motor skills, a new study shows.

Ontario outlines how Pfizer vaccine delivery delay will affect its COVID-19 immunization plan

The Ontario government has released further details on how the delay in the delivery of the Pfizer-BioNTech COVID-19 vaccine will affect the province’s immunization plan.In documents released Tuesday, officials said the known delivery reductions to Ontario are “substantial” and vary week to week. Weiterlesen: Ontario to delay 2nd vaccine dose until up to 42 days due to Pfizer shipment delivery pause For the week of Jan. 18,...

Obesity may impact Covid vaccinesefficacy: Experts

Neu-Delhi, Januar 19

Covid-19 vaccines may not be fully effective in people who are suffering from obesity, as experts on Tuesday suggested that the process of healing may be slower in obese people as compared to the healthy ones.

According to a report on Nature, obesity correlates with a dulled immune response to Covid-19. And vaccines for a handful of other conditions often don’t work as well in obese people, suggesting that a shot for Covid-19 might not provide as much protection as researchers would like.

The severity of Covid-19 is potentially high in obese or diabetic people. The fact is that the immunity and the process of healing may be slower in an obese person than a healthy person,” Navneet Sood, Pulmonary Consultant, Dharamshila Narayana Superspeciality Hospital, told IANS.

Such conditions also influence the immune system’s response to vaccines. Same is applied on Covid-19 vaccine. But there is no study yet which strongly confirms the direct relation between Covid-19 vaccineseffectiveness and obesity,” Sood added.

Obesity can cause chronic, low-grade inflammation, which is thought to contribute to the increased risk of conditions such as diabetes and heart disease. As a result, people who are obese might have higher levels of a variety of immune-regulating proteins, including cytokines.

The immune responses unleashed by cytokines can damage healthy tissue in some cases of severe Covid-19, according to the report.

According to a recently released study, published in the journal Perspectives on Psychological Science, suggests that depression, stress, loneliness and poor health behaviours can weaken the body’s immune system and lower the effectiveness of new Covid-19 vaccines.

The researchers emphasise that environmental factors, as well as an individual’s genetics and physical and mental health can weaken the body’s immune system, slowing the response to a vaccine.

In addition to the physical toll of COVID-19, the pandemic has an equally troubling mental health component, causing anxiety and depression, among many other related problems. Emotional stressors like these can affect a person’s immune system, impairing their ability to ward off infections,” said the researcher of the study Annelise Madison from the Ohio State University in the US.

Health experts also suggest that there are several factors that may lower the effectiveness of new Covid-19 vaccines and therefore it should be avoided.

Immune system of people with severe health conditions and low immunity may influence the response to the vaccine,” said Jyoti Mutta, Senior Consultant, Microbiology, Sri Balaji Action Medical Institute, Neu-Delhi.

People on steroids, severe liver diseases, uncontrolled diabetes or with immunosuppressed conditions like cancer patients, severe kidney patients may come in this category. Also alcohol consumption should be avoided. If one is leading a healthy lifestyle there is no apparent contra indication,” Mutta added. IANS

A biological strategy reveals how efficient brain circuitry develops spontaneously

Researchers have explained how the regularly structured topographic maps in the visual cortex of the brain could arise spontaneously to efficiently process visual information. This research provides a new framework for understanding functional architectures in the visual cortex during early developmental stages.

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