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Health And Medicine

All articles tagged with #health and medicine

Puget Sound Coyotes Reveal Hidden Tapeworm Threat
health-and-medicine1 day ago

Puget Sound Coyotes Reveal Hidden Tapeworm Threat

Researchers in the Puget Sound region detected the tapeworm Echinococcus multilocularis in 37% of 100 coyotes, marking the first wild West Coast detection in the contiguous U.S.; the parasite can trigger cancer-like liver cysts in humans and dogs and uses a multi-host life cycle involving canids and rodents. Genetic analysis links a more infectious European-origin strain now circulating in North America; human West Coast cases remain rare, though canine infections have occurred. The study calls for enhanced wildlife surveillance and routine veterinary care to reduce risk.

via ScienceDaily|
#alveolar-echinococcosis#coyotes#echinococcus-multilocularis
Glucosamine Use May Accelerate Alzheimer’s Progression, UF Study Finds
health-and-medicine2 days ago

Glucosamine Use May Accelerate Alzheimer’s Progression, UF Study Finds

UF Health analyzed records from 2012–2024 plus brain tissue and mouse studies and found glucosamine use associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia and a 25% higher mortality in Alzheimer's disease patients. The research points to a hyperactive protein sugar-tagging (glycosylation) pathway as a potential mechanism, suggesting metabolic dysfunction may drive progression, though causality isn’t proven and clinical trials are needed.

via ScienceDaily|
#alzheimers-disease#dementia#glucosamine
Freshly Brewed Tea Delivers Health Wins, Bottled Versions Fall Short
health-and-medicine3 days ago

Freshly Brewed Tea Delivers Health Wins, Bottled Versions Fall Short

A major review links tea, especially green tea, to protection against cardiovascular disease, obesity, diabetes, certain cancers, cognitive decline, and age-related muscle loss, with the strongest benefits seen from freshly brewed tea. However, bottled and bubble teas often add sugars and additives that can diminish these effects, and some products may carry contaminants, highlighting moderation and choosing traditional brewing while more research is needed on other tea types and long-term impacts.

via ScienceDaily|
#bottled-tea#cancer#cardiovascular-health
Source of nitrate matters for dementia risk, study finds
health-and-medicine4 days ago

Source of nitrate matters for dementia risk, study finds

In a Danish study of over 54,000 adults followed for up to 27 years, nitrate from vegetables was linked to a lower dementia risk, while nitrate and nitrite from red/processed meat and from drinking water were linked to higher risk. The protective vegetable effect may come from antioxidants that aid nitric oxide formation and block harmful N-nitrosamines, whereas meat lacks these protections and water nitrate could form N-nitrosamines in the body. The study is observational, so it cannot prove causation, and regulators may need to re-evaluate drinking-water nitrate limits, though the overall benefits of drinking water remain.

via ScienceDaily|
#dementia#diet#health-and-medicine
Ancient Root May Combat Hair Loss Across Multiple Pathways
health-and-medicine5 days ago

Ancient Root May Combat Hair Loss Across Multiple Pathways

A review highlights Polygonum multiflorum, a traditional Chinese medicine root, as a potential multi-target treatment for androgenetic alopecia, possibly reducing dihydrotestosterone (DHT) impact, protecting hair follicles, activating growth signals via Wnt and Shh pathways, and improving scalp blood flow. While promising, robust clinical trials are still needed and proper preparation is essential for safety.

via ScienceDaily|
#androgenetic-alopecia#hair-loss#health-and-medicine
Massive collagen review finds skin and joint benefits, but no athletic boost
health-and-medicine6 days ago

Massive collagen review finds skin and joint benefits, but no athletic boost

The largest umbrella review of collagen research (nearly 8,000 participants across 113 randomized trials) finds collagen supplements can improve skin hydration and elasticity and reduce osteoarthritis pain with longer use; modest improvements in muscle and tendon structure; little evidence for enhanced athletic performance or recovery; mixed or inconclusive results for metabolic and dental health; overall, collagen may support healthy aging but is not a quick fix for sports performance, and more high-quality trials are needed.

via ScienceDaily|
#collagen#health-and-medicine#meta-analysis
Cancer's Escape Trick May Backfire, Unlocking a New Immune Attack
health-and-medicine8 days ago

Cancer's Escape Trick May Backfire, Unlocking a New Immune Attack

Scientists found that when cancer cells reduce MHC I to dodge killer CD8+ T cells, they become more vulnerable to CD4+ T cells, which trigger ferroptosis. This reveals a surprising cross-talk in the immune system, challenging a long-held immunology principle and suggesting new approaches to cancer immunotherapy and bone marrow transplantation by leveraging CD4+ T cell activity against tumors and allogeneic targets.

via ScienceDaily|
#bone-marrow-transplantation#cancer-immunotherapy#cd4-t-cells
Oral pill boosts fat burning by energizing muscle metabolism, sidestepping Ozempic drawbacks
health-and-medicine9 days ago

Oral pill boosts fat burning by energizing muscle metabolism, sidestepping Ozempic drawbacks

An experimental oral β2 agonist pill activates metabolism in skeletal muscle to lower blood sugar and increase fat burning without reducing appetite or causing muscle loss, addressing downsides seen with GLP-1 drugs like Ozempic. Early Phase I results show good tolerability in healthy volunteers and people with type 2 diabetes, with Phase II trials planned to test efficacy and potential use alone or with existing therapies.

via ScienceDaily|
#diabetes#glp-1#health-and-medicine
French Fries Linked to Higher Type 2 Diabetes Risk, Diet Substitutions Matter
health-and-medicine9 days ago

French Fries Linked to Higher Type 2 Diabetes Risk, Diet Substitutions Matter

A BMJ study following over 205,000 U.S. health professionals for nearly 40 years found that three weekly servings of French fries are tied to a 20% higher risk of developing type 2 diabetes, while the same amount of boiled, baked, or mashed potatoes showed no significant increase. Replacing three weekly servings of potatoes with whole grains reduced risk by about 8%, replacing baked/boiled/mashed potatoes with whole grains reduced risk by about 4%, and replacing French fries with whole grains reduced risk by about 19%. Replacing potatoes with white rice increased diabetes risk. Because the study is observational, it cannot prove causation and may not generalize to all populations. The findings support favoring whole grains and moderating fried potato consumption as part of diabetes prevention.

via ScienceDaily|
#diabetes#french-fries#health-and-medicine
Birth-Time Epigenetics and Gut Bacteria Linked to Autism and ADHD Risk, Some Microbes May Offer Protection
health-and-medicine9 days ago

Birth-Time Epigenetics and Gut Bacteria Linked to Autism and ADHD Risk, Some Microbes May Offer Protection

A birth-time epigenetic setting appears to steer gut microbiome development in infancy, and specific epigenetic–microbiome combinations by age three are associated with autism and ADHD signs; certain bacteria, notably Lachnospira pectinoschiza and Parabacteroides distasonis, may be protective, suggesting future probiotic strategies while factors like delivery mode, antibiotics, siblings, and breastfeeding shape early microbial communities.

via ScienceDaily|
#adhd#autism#epigenetics
Different fats push or slow pancreatic cancer in mice
health-and-medicine10 days ago

Different fats push or slow pancreatic cancer in mice

In mice predisposed to pancreatic cancer, oleic acid (the main fat in olive oil) accelerated tumor growth, while omega-3–rich fats from fish oil significantly slowed disease; the effects appear linked to lipid oxidation and ferroptosis, with monounsaturated fats protecting cancer cells and polyunsaturated fats making them more vulnerable. Male mice showed stronger oleic-acid effects. While these findings hint at dietary fat composition influencing cancer risk or progression, human relevance remains unproven and future work may explore fat ratios as prevention or treatment markers or strategies.

via ScienceDaily|
#fats#ferroptosis#health-and-medicine
Nitrosylation Switch in STING Drives Alzheimer’s Brain Inflammation, Study Finds
health-and-medicine12 days ago

Nitrosylation Switch in STING Drives Alzheimer’s Brain Inflammation, Study Finds

Researchers at Scripps Research identified a chemical change known as S-nitrosylation of the STING protein at cysteine 148 that pushes brain immune cells into chronic inflammation in Alzheimer’s disease. Blocking this modification in a mouse model reduced neuroinflammation and protected synapses, and the same pathway was observed in human Alzheimer’s brain tissue and stem-cell models, suggesting a targeted therapy that quiets harmful inflammation without suppressing normal immunity. The team plans preclinical testing of small molecules to block cysteine 148.

via ScienceDaily|
#alzheimers-disease#cysteine-148#health-and-medicine
Fasting reshapes brain signals and gut bacteria to support weight loss
health-and-medicine12 days ago

Fasting reshapes brain signals and gut bacteria to support weight loss

A study of 25 obese adults found that an intermittent fasting–style diet produced about 7.6 kg of weight loss and metabolic improvements, while shifting gut bacteria (increases in Faecalibacterium prausnitzii, Parabacteroides distasonis, and Bacteroides uniformis; decreases in E. coli) and reducing activity in brain regions tied to appetite and reward. The results suggest a coordinated, two-way gut–brain axis in weight loss, though causality remains unproven and larger studies are needed.

via ScienceDaily|
#brain-activity#gut-microbiome#health-and-medicine
Aging brains suffer protein traffic jams that raise Alzheimer’s risk, Stanford study finds
health-and-medicine13 days ago

Aging brains suffer protein traffic jams that raise Alzheimer’s risk, Stanford study finds

Stanford researchers link aging-related brain decline to ‘protein traffic jams’: ribosomes stall during translation elongation, disrupting proteostasis and increasing misfolded protein aggregates tied to memory loss and Alzheimer's. Using the turquoise killifish as a fast-aging model, they show slowed or faulty protein production can decouple mRNA and protein levels, suggesting new targets—like boosting translation efficiency or ribosome quality control—to slow cognitive aging and neurodegenerative risk.

via ScienceDaily|
#aging#alzheimers-disease#health-and-medicine