Medicine News

Study: Women with High Cardiovascular Fitness Less Likely to Develop Dementia

Among Swedish women, a high cardiovascular fitness in midlife was associated with a decreased risk of subsequent dementia. Image credit: Brisbane City Council / CC BY 2.0.
Mar 16, 2018 by News Staff

According to a 44-year longitudinal population study, published online in the journal Neurology, women with high cardiovascular fitness in midlife were 88% less likely to develop dementia decades later, compared to women who were moderately fit; when the highly fit women did develop dementia, they developed the disease an average of 11 years later than women who were moderately fit, or at age 90 instead of age 79. Among Swedish women, a high cardiovascular...

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Obese and thin mice (Shannon Reilly / University of Michigan)

New Study Finds Link between Body Temperature and Obesity

Mar 15, 2018 by News Staff

According to a study in mice published in the Journal of Neuroscience, reduced ability to maintain body temperature in colder environments may contribute...

In this study, higher Vitamin D concentration was associated with lower risk of total cancer; the findings support the hypothesis that Vitamin D has protective effects against cancers at many sites. Image credit: OpenStax College / CC BY 3.0.

Vitamin D May Help Protect Against Cancer: Study

Mar 13, 2018 by News Staff

High Vitamin D levels may be linked to a lower risk of developing cancer, according to a study of Japanese adults published in the journal BMJ. In this...

Enterococcus gallinarum (orange dots) in liver tissue. Image credit: Vieira et al.

Study: Gut Bacteria Trigger Autoimmune Disease

Mar 12, 2018 by News Staff

Enterococcus gallinarum, a species of bacterium found in the small intestines of humans and mice, can travel to other organs and trigger an autoimmune...

Chang et al found a significant association between varicose veins and DVT. The illustration shows how a varicose vein forms in a leg. Image credit: National Heart Lung and Blood Institute / Jmarchn / CC BY-SA 3.0.

Varicose Veins Linked to Increased Risk of Deep Venous Thrombosis

Mar 2, 2018 by Enrico de Lazaro

According to an observational study published in the journal JAMA, varicose veins may be a warning sign of a type of blood clot known as a deep venous...

Magnesium is the fourth most abundant mineral in the human body after calcium, potassium, and sodium. Foods high in magnesium include almonds, bananas, beans, broccoli, brown rice, cashews, egg yolk, fish oil, flaxseed, green vegetables, milk, mushrooms, other nuts, oatmeal, pumpkin seeds, sesame seeds, soybeans, sunflower seeds, sweet corn, tofu, and whole grains. Image credit: U.S. Department of Agriculture.

Magnesium-Deficient Diet Makes Vitamin D Ineffective, Review Says

Mar 1, 2018 by News Staff

Vitamin D can’t be metabolized without sufficient magnesium levels, meaning Vitamin D remains stored and inactive for as many as 50% of Americans, according...

The Eastern Indian red scorpion (Buthus tamulus) in Mangaon, Maharashtra, India. Image credit: Shantanu Kuveskar / CC BY-SA 4.0.

Scorpion Venom Toxin Reduces Severity of Rheumatoid Arthritis in Rats

Feb 28, 2018 by News Staff

Dr. Christine Beeton from Baylor College of Medicine and colleagues have found that iberiotoxin — one of the components in the venom of a scorpion...

This illustration depicts a 3D computer-generated image of a group of Escherichia coli. Image credit: James Archer, CDC.

Scientists Discover New Link between Obesity and Gut Bacteria

Feb 26, 2018 by News Staff

A team of scientists at Lund University in Sweden has found that certain amino acids in our blood can be connected to both obesity and the composition...

Transmission electron micrograph of ranaviruses (hexagons), members of the family Iridoviridae. Image credit: Electron Microscopy Unit, Australian Animal Health Laboratory / CSIRO.

Researchers Discover ‘Insulin-Producing’ Viruses

Feb 23, 2018 by News Staff

An international team of scientists led by Harvard Medical School’s Joslin Diabetes Center has identified four viruses that can produce insulin-like...

The pilot study data suggest an abnormally high prevalence of pain in Meru, Kenya, and that monosodium glutamate intake, combined with dehydration, may be contributing to chronic widespread pain in this region. Image credit: Gerd Altmann.

Glutamate Consumption Enhances Chronic Pain Symptoms, Study Says

Feb 20, 2018 by News Staff

A new pilot study, carried our in Kenya, has found a link between chronic pain and consumption of monosodium glutamate, a common flavor and taste enhancer...

Women cleaning at home or working as occupational cleaners had accelerated decline in lung function, suggesting that exposures related to cleaning activities may constitute a risk to long-term respiratory health. Image credit: Yerson Retamal.

Study: Lung Function Declines Faster in Women Who Use Cleaning Products

Feb 16, 2018 by News Staff

Women who regularly use cleaning sprays or other cleaning products appear to experience a greater decline in lung function over time than women who do...

A fruit fly (Drosophila melanogaster). Image credit: Sanjay Acharya / CC BY-SA 4.0.

Clues to Aging Found in Fruit Flies’ Stem Cells

Feb 15, 2018 by News Staff

Reproductive stem cells of male fruit flies (Drosophila melanogaster) use a genetic trick to stay perpetually young across generations, according to new...

Interventions aimed at reducing eating speed may be effective in preventing obesity and lowering the associated health risks. Image credit: StockSnap.

Eating Slowly May Help Prevent Obesity, Reduce Associated Health Risks: Study

Feb 15, 2018 by News Staff

Slowing down the speed at which you eat, along with cutting out after dinner snacks and not eating within two hours of going to sleep may all help prevent...

Magnification of a lab-grown, fully matured human egg ready for fertilization. Image credit: University of Edinburgh.

Human Eggs Fully Grown in Laboratory for the First Time

Feb 13, 2018 by News Staff

A team of researchers led by the University of Edinburgh has grown human egg cells (oocytes) — which were removed from ovary tissue at their earliest...

Tylenol is one of the most recognizable brand names for acetaminophen (paracetamol). Image credit: Katy Warner / CC BY-SA 2.0.

Painkiller Acetaminophen Has Unexpected Effects on Regulation of Sex Hormones: Study

Feb 13, 2018 by News Staff

A study published in the journal EBioMedicine has shown the potentially negative impact of acetaminophen (paracetamol) — one of the most common medications...

Researchers have demonstrated that cells of naked mole rats (Heterocephalus glaber) undergo cellular senescence similarly to mouse cells but have distinct features that may explain the species’ low cancer and aging rates, such as being more resistant to DNA damage and undergoing metabolic reprogramming. Image credit: Benny Mazur / CC BY 2.0.

Resistance to DNA Damage and Downregulation of Metabolic Processes May Contribute to Low Cancer Rates in Naked Mole Rats

Feb 13, 2018 by Zvi Cramer

Scientists have revealed that senescent naked mole rat cells downregulate key metabolic processes and are more resistant to DNA damage than their mouse...

Section from a kidney progenitor-derived mass harvested from a mouse intravenously injected with low-molecular-weight, fluorescein isothiocyanate-labeled dextran. Image credit: Bantounas et al, doi: 10.1016/j.stemcr.2018.01.008.

Researchers Create Functioning Human Kidney Tissue Using Stem Cells

Feb 12, 2018 by News Staff

An international research team led by University of Manchester scientists has generated human kidney tissue within a living organism which is able to produce...

Welch et al show for the first time that far-UVC efficiently inactivates airborne aerosolized viruses. These fluorescent images show epithelial cells infected with H1N1; the viruses were exposed in aerosolized form in the irradiation chamber to doses of 0, 0.8, 1.3 or 2.0 mJ/cm2 of 222-nm far-UVC light; infected cells fluoresce green. Image credit: Welch et al, doi: 10.1038/s41598-018-21058-w.

Study: Far Ultraviolet C Light Inactivates Airborne Viruses

Feb 12, 2018 by News Staff

Low doses of far ultraviolet C light can inactivate airborne influenza and other viruses without harming human tissues, according to a study published...

This is the first study to report the detection of DNA of Mycobacterium avium ssp. paratuberculosis in the blood of rheumatoid arthritis patients. Image credit: Edwin P. Ewing, Jr. / CDC.

Study: Mycobacteria in Milk and Beef May Be Trigger for Rheumatoid Arthritis

Feb 6, 2018 by News Staff

Scientists at the University of Central Florida College of Medicine have discovered a link between rheumatoid arthritis and Mycobacterium avium ssp. paratuberculosis,...

Chondroitin sulfate (marked in red), virtually absent in healthy human heart tissue (left panel), is found to accumulate in hearts of patients with heart failure, forming dense molecular ‘nets’ around the heart muscle cells (right panel). Cell nuclei are marked in blue. Scale bar - 50 μm. Image credit: National University Heart Centre, Singapore.

Scientists Find Molecular ‘Nets’ inside Human Heart Muscles

Feb 6, 2018 by News Staff

An international team of scientists led by the National University of Singapore’s Cardiovascular Research Institute has discovered that chondroitin sulfates...

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