Category Health/Medical

Could Sing-a-Long Science be the key to Straight A’s?

(Colour online) A comparison of test performance and confidence of males and females (Study A). Arrows show changes from pre-video to post-video values. Both males and females significantly improved their test scores (paired t-tests, p < .001 for each). Average scores for males and females were not significantly different on either the pre-test or the post-test (two-sample t-tests, p > .8 for each), but males were significantly more confident in their answers both before (two-sample t-test, p = .0001) and after watching the videos (two-sample t-test, p = .004)

(Colour online) Pre- and post-video test scores by age group (Study A). Values shown are means ± standard errors. All pre-test to post-test improvements were statistically significant (paired t-tests, p < .001 for each)

Does “edutainment” such as content-rich music videos have any place in the rapidly changing landscape of science education? A new study indicates that students can indeed learn serious science content from such videos. The study, titled ‘Leveraging the power of music to improve science education’ and published by International Journal of Science Education, examined over 1,000 students in a 3-part experiment, comparing learners’ understanding and engagement in response to 24 musical and non-musical science videos.

The central findings were that
(1) across ages and g...

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Human Amyloid-Beta acts as Natural Antibiotic in the Brain

beta-amyloid fibrils propagate from yeast surfaces and capture Candida albicans in culture medium. Credit: D.K.V. Kumar et al. / Science Translational Medicine (2016)

beta-amyloid fibrils propagate from yeast surfaces and capture Candida albicans in culture medium. Credit: D.K.V. Kumar et al. / Science Translational Medicine (2016)

A new study from Massachusetts General Hospital (MGH) investigators provides additional evidence that amyloid-beta protein, deposited in the form of beta-amyloid plaques in Alzheimer’s disease – is a normal part of the innate immune system, the body’s first-line defense against infection. Expression of human amyloid-beta (A-beta) was protective against potentially lethal infections in mice, in roundworms and in cultured human brain cells. The findings may lead to potential new therapeutic strategies and suggest limitations to therapies designed to eliminate amyloid plaques from patient’s brains.

“Neurodegeneration in Alzheime...

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Scientists show Commonly Prescribed Painkiller Slows Cancer Growth

celecoxib

Celecoxib

Scientists from Florida campus of TSRI have found that one of the most widely prescribed pain and anti-inflammation drugs slows the growth rate of a specific kind of cancer in animal models and suggests the medication could have the same effect on other types of tumors. The new study focused on the effects of celecoxib (Pfizer’s Celebrex®) which targets “cyclooxygenase-2” (COX-2). This enzyme is also critical in the creation of prostaglandins, compounds that act like hormones and play a role in promoting tumor growth. COX-2 expression is typically low in normal tissue, but high in multiple types of cancers.

COX-2, Gordian knot or Achilles heel? (A) Physiological processes with significant COX-2 involvement. (B) COX-2 silencing changes the metabolic profile of breast cancer cells to a less aggressive phenotype. (C) COX-2 silencing reduces the invasiveness of breast cancer cell. (D) COX-2 silencing abolishes the extrapulmonary colonization of metastatic breast cancer cells. (E) Sites of primary tumors with extensive COX-2 involvement.

COX-2, Gordian knot or Achilles heel? (A) Physiological processes with significant COX-2 involvement...

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Couples Study Ties Anger to Heart Problems, Stonewalling to Back Pain

How do you react to disagreements? It did not take the researchers long to guess which spouses would develop ailments down the road based on how they reacted to disagreements. Credit: © kmiragaya / Fotolia

How do you react to disagreements? It did not take the researchers long to guess which spouses would develop ailments down the road based on how they reacted to disagreements. Credit: © kmiragaya / Fotolia

Study suggests how you argue predicts health problems later in life. If you rage with frustration during a marital spat, watch your blood pressure. If you keep a stiff upper lip, watch your back. New research from the UC, Berkeley, and NW University, based on how couples behave during conflicts, suggests outbursts of anger predict cardiovascular problems. Conversely, shutting down emotionally or “stonewalling” during conflict raises the risk of musculoskeletal ailments such as a bad back or stiff muscles.

The study, published today in the journal Emotion, is based on 20 years of data...

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