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Higher Coffee Consumption Associated with Slower Cognitive Decline

Habitual coffee intake may be a protective factor against Alzheimer’s disease; specifically, increased coffee consumption could contribute to slower cognitive decline potentially by slowing the rate of cerebral Aβ-amyloid accumulation, and in doing so, ameliorate the associated neurotoxicity from Aβ-amyloid-mediated oxidative stress and inflammatory processes. Image credit: Sci-News.com.
Nov 24, 2021 by News Staff

A new long-term study led by Edith Cowan University scientists further supports the hypothesis that coffee intake may be a protective factor against Alzheimer’s disease, with increased coffee consumption potentially reducing cognitive decline. Habitual coffee intake may be a protective factor against Alzheimer’s disease; specifically, increased coffee consumption could contribute to slower cognitive decline potentially by slowing the rate of cerebral...

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Scanning electron micrograph of an HIV-infected H9 T cell. Image credit: NIAID.

Second HIV Patient Naturally Achieved ‘Sterilizing Cure of Infection,’ Researchers Say

Nov 19, 2021 by News Staff

A 30-year-old woman from the city of Esperanza, Argentina — the so-called Esperanza Patient — appears to be the second person whose immune...

Marcus et al. found that coffee consumption increases ventricular ectopy, increase physical activity, and reduces sleep duration. Image credit: Sci-News.com.

Coffee Consumption Has Both Beneficial and Harmful Short-Term Health Effects, Says New Study

Nov 18, 2021 by News Staff

In a new randomized trial, participants who drunk caffeinated coffee for two weeks were more physically active, yet they also had an increased number of...

Zhang et al. found that drinking coffee and tea separately or in combination were associated with lower risk of stroke and dementia; intake of coffee alone or in combination with tea was associated with lower risk of poststroke dementia. Image credit: Sci-News.com.

Study: Coffee and Tea Consumption Lowers Stroke and Dementia Risk

Nov 16, 2021 by News Staff

In a large prospective cohort study published today in the journal PLoS Medicine, a team of researchers from Tianjin Medical University and Yale University...

Yang et al. provide novel preliminary information about the effects of grape intake on the gut microbiome, host cholesterol, and bile acid metabolism. Image credit: Bruno.

Grape Consumption Modifies Gut Microbiome, Lowers Blood Cholesterol Levels: Study

Nov 12, 2021 by News Staff

Consuming grapes significantly increases the diversity of gut bacteria, decreases cholesterol levels as well as bile acids which play an integral role...

Psychotria insularum. Image credit: Victoria University of Wellington.

Samoan Medicinal Plant May Be as Effective as Ibuprofen, Study Says

Nov 2, 2021 by News Staff

The poorly understood ‘matalafi’ — the homogenate of Psychotria insularum leaves (fresh leaf juice) — is widely used in Samoan traditional...

New Type of Neuron Discovered in Mammalian Retina

Nov 2, 2021 by News Staff

Cell classes are the building blocks for the central nervous system. It is widely believed that major classes of neurons have been identified in the retina,...

A concentration of 2.5 μM EGCG and ECG enhanced health- and lifespan as well as stress resistance in Caenorhabditis elegans. Catechins hampered mitochondrial respiration in Caenorhabditis elegans after 6-12 hrs and the activity of complex I in isolated rodent mitochondria. The impaired mitochondrial respiration was accompanied by a transient drop in ATP production and a temporary increase in ROS levels in Caenorhabditis elegans. After 24 hrs, mitochondrial respiration and ATP levels got restored, and ROS levels even dropped below control conditions. The lifespan increases induced by EGCG and ECG were dependent on AAK-2/AMPK and SIR-2.1/SIRT1, as well as on PMK-1/p38 MAPK, SKN-1/NRF2, and DAF-16/FOXO. Long-term effects included significantly diminished fat content and enhanced SOD and CAT activities, required for the positive impact of catechins on lifespan. Image credit: Tian et al., doi: 10.18632/aging.203597.

Study: Green Tea Catechins Extend Health- and Lifespan, Reduce Fat Content in Model Organism

Oct 27, 2021 by Enrico de Lazaro

Green tea is one of the most widely consumed beverages worldwide. Green tea catechins are associated with a delay in aging. In experiments performed in...

Obstructive sleep apnea is a condition where the airway closes off during sleep and so the lungs cannot oxygenate the blood adequately. Image credit: Habib M’henni.

Scientists Find Link between Obstructive Sleep Apnea and Blood Triglyceride Levels

Oct 25, 2021 by News Staff

People with more severe obstructive sleep apnea and reductions in blood oxygen concentrations are more likely to have elevated concentrations of triglycerides...

Puhlmann et al. investigated the effect of regular contemplative mental training on endocrine and psychological indices of long-term stress.

Daily Mental Training Reduces Chronic Stress, New Study Shows

Oct 11, 2021 by Enrico de Lazaro

New research by scientists from Germany and the United Kingdom shows that daily mental training for 3 to 6 months can buffer the long-term systemic stress...

Fenchol, a plant-derived compound that gives basil its aromatic scent, can be a therapeutic approach to ameliorate Alzheimer’s disease pathology. Image credit: Jing.

Natural Plant-Derived Compound Reduces Neurotoxicity in Alzheimer’s Brain, Study Says

Oct 6, 2021 by News Staff

Fenchol, a natural compound commonly present in some plants including basil (Ocimum basilicum), decreases Alzheimer’s disease pathology by activating...

New Tick-Borne Virus Discovered in Japan

Oct 4, 2021 by Enrico de Lazaro

Scientists have isolated a new orthonairovirus from two patients showing acute febrile illness with thrombocytopenia and leukopenia after tick bite in...

Ke et al. report 14 genes that promote obesity and 3 genes that prevent diet-induced obesity when silenced in Caenorhabditis elegans. Image credit: Renée Gordon, FDA.

Researchers Discover 17 New Genes that Promote or Prevent Obesity

Oct 1, 2021 by News Staff

A new study in Caenorhabditis elegans worms has identified 14 new genes that promote obesity and 3 genes that prevent diet-induced obesity. Ke et al. report...

Several lines of study suggest that peripheral metabolism of amyloid beta (Aß) is associated with risk for Alzheimer’s disease. In blood, greater than 90% of Aß is complexed as an apolipoprotein, raising the possibility of a lipoprotein-mediated axis for Alzheimer’s disease risk. Lam et al. report that genetic modification of C57BL/6J mice engineered to synthesize human Aß only in liver has marked neurodegeneration concomitant with capillary dysfunction, parenchymal extravasation of lipoprotein-Aß, and neurovascular inflammation. Image credit: National Institute on Aging / National Institutes of Health.

Protein from Liver May Cause Alzheimer’s Disease, Groundbreaking Study Says

Sep 15, 2021 by News Staff

According to a new study in mice, a probable cause of Alzheimer’s disease is the leakage from blood into the brain of fat-carrying particles transporting...

Cocoa and green tea flavonoids may be beneficial in the nutritional management of age-related deterioration of the neuromuscular system. Image credit: Sci-News.com.

Green Tea and Cocoa-Enriched Diet May Help Prevent Age-Associated Neuromuscular Changes

Sep 2, 2021 by Natali Anderson

A new study in mice provides insights into the use of green tea and cocoa flavonoids as nutritional interventions for the treatment of aging-related neuromuscular...

Regular walnut consumption may be a useful part of a multicomponent dietary intervention or dietary pattern to lower atherogenic lipids and improve CVD risk. Image credit: Lubos Houska.

Walnut-Supplemented Diet May Help Reduce Cardiovascular Disease Risk

Aug 31, 2021 by News Staff

Eating 30-60 grams (15% of energy) of walnuts every day for two years lowered levels of low-density lipoprotein (LDL, or ‘bad’) cholesterol and reduced...

Effects of vitamin D supplementation did not differ from placebo. Image credit: Virat Maurya.

Vitamin D Does Not Have Beneficial Effects on Muscle Health, New Review Says

Aug 24, 2021 by Enrico de Lazaro

Vitamin D do not have a beneficial effect on muscle function, strength, or mass in non-athletes and may in some cases even have a negative effect, according...

Guarneiri et al. saw an average drop of 5% in total cholesterol and between 6% and 9% in LDL among participants who consumed pecans. Image credit: Jackie Matthews.

Daily Pecan Consumption May Help Reduce Cholesterol Levels

Aug 24, 2021 by News Staff

In a new randomized, controlled trial, participants at risk for cardiovascular disease who ate pecans (Carya illinoinensis) during an eight-week intervention...

The study sheds new light on the link between sleep deprivation and obesity. Image credit: Sweet Briar College.

Brief Naps during Day Don’t Relieve Sleep Deprivation, Study Says

Aug 13, 2021 by News Staff

Sleeping for a short period (i.e. napping) may help mitigate impairments in cognitive processing caused by sleep deprivation, but there is limited research...

Kennedy et al. found that fetal gut colonization of healthy term infants does not occur before birth. Image credit: Darryl Leja, National Human Genome Research Institute, National Institutes of Health.

Fasting Can Protect from Intestinal Bacterial Infections, Study Suggests

Aug 10, 2021 by News Staff

Fasting before and during exposure to invasive food-borne bacteria protects mice from developing a full-blown gastrointestinal infection, in part through...

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