What is ALS and what are the causes?
Sandra Bullock’s longterm partner Bryan Randall has died at the age of 57 after a three-year battle with amyotrophic lateral sclerosis (ASL). His family shared a statement confirming that Randall “passed away peacefully” on Saturday (5 August), adding that he “chose early to keep his journey with ALS private and those of us who cared for him did our best to honour his request”. The statement, sent to People magzine, continued: “We are immensely grateful to the tireless doctors who navigated the landscape of this illness with us and to the astounding nurses who became our roommates, often sacrificing their own families to be with ours.” Bullock and Randall first met in 2015 and made their first public appearance together the following year. The model-turned-photographer’s family has asked for donations to be made to the ALS Association and the Massachusetts General Hospital. ALS affects nerve cells in the brain and spinal cord, its name coming from the Greek and referring to a wasting away of the muscles responsible for controlling voluntary movement caused by a lack of nourishment, the fault of a genetic mutation. As the ALS Association explains: “Motor neurons reach from the brain to the spinal cord and from the spinal cord to the muscles throughout the body. The progressive degeneration of the motor neurons in ALS eventually leads to their demise. “When the motor neurons die, the ability of the brain to initiate and control muscle movement is lost. When voluntary muscle action is progressively affected, people may lose the ability to speak, eat, move and breathe. “The motor nerves affected when you have ALS are the motor neurons that provide voluntary movements and muscle control. Examples of voluntary movements are making the effort to reach for a smartphone or step off a curb. These actions are controlled by the muscles in the arms and legs.” Early symptoms of the disease, according to the US National Institute of Neurological Disorders and Strokes (NINDS), include: muscle twitches in the arm, leg, shoulder or tongue; cramps; tight or stiff muscles; muscle weakness; slurred or nasal speech; and difficulty chewing and swallowing. “The first sign of ALS usually appears in the hand or arm and can show as difficulty with simple tasks such as buttoning a shirt, writing, or turning a key in a lock,” the NINDS explains. “In other cases, symptoms initially affect one leg. People experience awkwardness when walking or running, or they may trip or stumble more often.” There is currently no cure for ALS but the US Food and Drug Administration has approved four drugs to treat the condition and ease the discomfort of sufferers: Riluzole, Nuedexta, Radicava and Tiglutik. It was first discovered by French neurologist Jean-Martin Charcot in 1869 and is also commonly known as Lou Gehrig’s disease in memory of the celebrated New York Yankees baseman (1903-41) who also suffered from it. While ALS affects all demographics, it is most common among people aged between 55 and 75 and, according to some studies, disproportionately affects former members of the armed forces, perhaps because of exposure to harmful toxins during their service careers although this has not been definitively substantiated. The ALS Association reports that, in 90 per cent of cases of ALS, there is no family history of the genetic mutation that causes the disease and, in the 5-10 per cent of cases in which there is, only a 50 per cent possibility exists of its being passed on. For more information, please visit the websites of the ALS Association or the National Institute of Neurological Disorders and Strokes. Read More Roberta Flack announces she has ALS and finds it ‘impossible to sing’ NIH to fund unproven ALS drugs under patient-backed law ALS drug wins FDA approval despite questionable data Brain’s appetite control centre different in overweight or obese people – study Areas with lower bird diversity ‘have more mental health hospital admissions’ Greg Rutherford rushed to hospital ‘screaming and clawing at his skin’
1970-01-01 08:00
Brain’s appetite control centre different in overweight or obese people – study
The brain’s appetite control centre is different in the brains of people who are overweight or live with obesity, a new study suggests. The researchers said their findings add further evidence to the relevance of brain structure to weight and food consumption. Current estimates suggest that more than 1.9 billion people worldwide are either overweight or obese. And, according to the Office for Health Improvement and Disparities, almost two-thirds of adults in the UK are overweight or living with obesity. This increases the risk of developing health issues like type 2 diabetes, heart disease and stroke, cancer and poorer mental health. The last two decades have given us important insights about appetite control and how it may be altered in obesity Professor Paul Fletcher, University of Cambridge A number of factors influence how much people eat and what they eat, including genetics, hormone regulation, and the environment they live in, researchers say. However, it is not entirely clear what happens to the brain to tell us that we are hungry or full. Past studies have shown that the hypothalamus – a small region of the brain about the size of an almond – plays an important role. Dr Stephanie Brown, from the Department of Psychiatry and Lucy Cavendish College, University of Cambridge, said: “Although we know the hypothalamus is important for determining how much we eat, we actually have very little direct information about this brain region in living humans. “That’s because it is very small and hard to make out on traditional MRI brain scans.” Professor Paul Fletcher, the study’s senior author, from the Department of Psychiatry and Clare College, Cambridge, said: “The last two decades have given us important insights about appetite control and how it may be altered in obesity. “Metabolic researchers at Cambridge have played a leading role in this. “Our hope is that, by taking this new approach to analysing brain scans in large datasets, we can further extend this work into humans, ultimately relating these subtle structural brain findings to changes in appetite and eating and generating a more comprehensive understanding of obesity.” The majority of evidence for the role of the hypothalamus in appetite regulation comes from animal studies, which indicate complex interacting pathways within the hypothalamus, with different cell populations acting together to tell us when we are hungry or full. To get around this researchers used an algorithm developed using machine learning to analyse brain scans taken from 1,351 young adults across a range of BMI scores. They looked for differences in the hypothalamus when comparing individuals who are underweight, healthy weight, overweight, or living with obesity. According to the findings, the overall volume of the hypothalamus was significantly larger in the overweight and obese groups of young adults. The researchers describe a significant relationship between volume of the hypothalamus and body mass index (BMI). The differences were most apparent in those sub-regions of the hypothalamus that control appetite through the release of hormones to balance hunger and fullness. While the exact significance of the finding is unclear, one explanation is that the change relates to inflammation, the researchers suggest. Eating a high-fat diet could trigger inflammation of our appetite control centre Dr Stephanie Brown, University of Cambridge Previous animal studies have shown that a high-fat diet can cause inflammation of the hypothalamus, which in turn prompts insulin resistance and obesity. In mice, just three days of a fat-rich diet is enough to cause this inflammation. Other studies have shown that this inflammation can raise the threshold at which animals are full – in other words, they have to eat more food than usual to feel full. Dr Brown added: “If what we see in mice is the case in people, then eating a high-fat diet could trigger inflammation of our appetite control centre. “Over time, this would change our ability to tell when we’ve eaten enough and to how our body processes blood sugar, leading us to put on weight.” More research is needed to confirm whether increased volume in the hypothalamus is a result of being overweight or whether people with larger hypothalami are predisposed to eat more in the first place. It is also possible that these two factors interact with each other, causing a feedback loop, the study published in Neuroimage: Clinical, and supported by the Bernard Wolfe Health Neuroscience Fund, Wellcome and the NIHR Cambridge Biomedical Research Centre, with additional funding from Alzheimer’s Research UK, suggests.
1970-01-01 08:00
Areas with lower bird diversity ‘have more mental health hospital admissions’
Areas with lower bird diversity appear to have a higher number of hospital admissions related to mental health conditions, research suggests. Experts analysed data from ebird – an online database of bird observations by citizen scientists – to estimate diversity across the US state of Michigan. The team then combined this with hospital admissions for anxiety and mood disorders in the state. The findings, published in the journal Geo: Geography And Environment, showed lower bird diversity to be a significant predictor of higher numbers of hospital admissions for mental health conditions, highlighting the complex relationship between the disorders and biodiversity crises. It is critical we take a holistic approach to our mental health and nature Dr Rachel Buxton The researchers said that while income and the presence of green spaces were the strongest predictors of anxiety and mood disorder-related admissions, there were also independent “significant associations” between mental health and bird diversity. Lead author Dr Rachel Buxton, assistant professor at the Institute of Environmental and Interdisciplinary Sciences at Carleton University in Canada, said: “Often we consider nature as representing the amount of green space near homes or the distance to the nearest park, but the link between species diversity and health is underexplored. “Our study shows that if species diversity can affect mental health at the severe end of the spectrum (hospitalisations), it is possible that the decline in biodiversity across the globe may be intricately connected with our anxiety and mood on a day-to-day basis. “It is critical we take a holistic approach to our mental health and nature. “Investing in nature should not be viewed as a luxury, but a necessity, and evaluated in the context of the support for wellbeing it offers individuals and communities living in urban or nature-scarce environments. “Restoring and conserving diverse bird communities could be one avenue to improving mental health in cities and factored into urban restoration projects and public health policies.” Last year, researchers from King’s College London found that watching birds or listening to birdsong was linked to mental wellbeing, with effects lasting up to eight hours. The Institute of Psychiatry, Psychology & Neuroscience (IoPPN) team said at that time that the links between birds and mental wellbeing were not explained by co-occurring environmental factors such as the presence of trees, plants or waterways.
1970-01-01 08:00
How Ohio's ballot vote could preview the 2024 politics of abortion
The ballot initiative Ohio voters will decide Tuesday is likely to demonstrate again the continuing public resistance to last year's Supreme Court decision ending the nationwide constitutional right to abortion -- while also offering an early indication about how broadly that backlash may benefit Democrats in the 2024 election.
1970-01-01 08:00
Mets: 3 players who won't be on the roster by Sept. 1
The New York Mets have found themselves entering a rebuild in 2023. This rebuild is far from over and there are a few players that could be optioned soon.The New York Mets were the biggest team at the trade deadline, dealing away two future Hall of Fame starters among others. They kicked off the...
1970-01-01 08:00
Carbon credits - land grab or the Amazon’s future?
The eight countries who share the rainforest are meeting in Brazil for a "milestone" summit.
1970-01-01 08:00
Black mom sues city of Detroit claiming she was falsely arrested while 8 months pregnant by officers using facial recognition technology
A Black mother is suing the city of Detroit and a Detroit Police Department detective after she was falsely arrested while eight months pregnant by officers using "an unreliable facial recognition match," a federal lawsuit filed Thursday says.
1970-01-01 08:00
Final Fantasy 16 DLC Plans: Rumors, Release Date
Here's what we know so far about the Final Fantasy 16 DLC, potential rumors and release dates.
1970-01-01 08:00
Make Your Year Smarter With Mental Floss’s Amazing Facts 2024 Calendar
Mental Floss’s Amazing Facts 2024 calendar can provide the daily serving of trivia your brain craves.
1970-01-01 08:00
How to Participate in the Modern Warfare 3 Live Event
Fans can participate in the Modern Warfare 3 live event by loading into a limited-time playlist in Warzone Season 5 on Aug. 17.
1970-01-01 08:00
3 trades Chaim Bloom didn’t make that killed the Red Sox season
The Boston Red Sox are falling all the way out of playoff contention and Chaim Bloom deserves the lion's share of the blame for his trade deadline dud.The Boston Red Sox are dead. Sure, in theory, they could make up the five-game deficit that's grown in the wild card race over the rema...
1970-01-01 08:00
Judge dismisses Trump's defamation claim against E. Jean Carroll
NEW YORK (Reuters) -A U.S. judge on Monday dismissed Donald Trump's defamation counterclaim against the writer E. Jean Carroll, who
1970-01-01 08:00
