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UMD Study Shows Exercise May Protect Against Future Emotional Stress

By Guest PostSeptember 15, 2012Healthacute exercise, aging, alzheimer's disease, anxiety, anxiety level, brain function, carson smith, emotion research, emotional exposure, fmri, functional, iaps database, imaging, kinesiology researcher, magnetic, maryland, mental health, moderate exercise, physical activity, resonance, stress, symptom, university

COLLEGE PARK, Md. – Moderate exercise may help people cope with anxiety and stress for an extended period of time post-workout, according to a study by kinesiology researchers in the University of Maryland School of Public Health published in the journal Medicine and Science in Sports and Exercise.

“While it is well-known that exercise improves mood, among other benefits, not as much is known about the potency of exercise’s impact on emotional state and whether these positive effects endure when we’re faced with everyday stressors once we leave the gym,” explains J. Carson Smith, assistant professor in the Department of Kinesiology. “We found that exercise helps to buffer the effects of emotional exposure. If you exercise, you’ll not only reduce your anxiety, but you’ll be better able to maintain that reduced anxiety when confronted with emotional events.” (more…)

Regrowing Hair: UCLA-VA Researchers May Have Accidentally Discovered a Solution

By Guest PostFebruary 18, 2011Health, Scienceaging, astressin b, bald, brain gut interactions, chronic stress, corticotrophin releasing factor, crf, gastrointestinal function, graying of hair, hair growth, hair loss, hair restoration remedies, hucksters, humans, mice age, million mulugeta, minoxidil, miracle solvents, peptide, stress, stress related hormone, treat hair loss

It has been long known that stress plays a part not just in the graying of hair but in hair loss as well. Over the years, numerous hair-restoration remedies have emerged, ranging from hucksters’ “miracle solvents” to legitimate medications such as minoxidil. But even the best of these have shown limited effectiveness.

Now, a team led by researchers from UCLA and the Veterans Administration that was investigating how stress affects gastrointestinal function may have found a chemical compound that induces hair growth by blocking a stress-related hormone associated with hair loss — entirely by accident. (more…)

Stem Cell Transplants in Mice Produce Lifelong Enhancement of Muscle Mass

By Guest PostNovember 13, 20102 commentsScienceaging, bradley olwin, cell transplant, chronic, degenerative muscle diseases, green fluorescent protein, leg muscles, mice, muscle function, muscle stem cells, myofibers, satellite cells, stem cells, transplant, ultraviolet light, university of colorado at boulder

A University of Colorado at Boulder-led study shows that specific types of stem cells transplanted into the leg muscles of mice prevented the loss of muscle function and mass that normally occurs with aging, a finding with potential uses in treating humans with chronic, degenerative muscle diseases.

The experiments showed that when young host mice with limb muscle injuries were injected with muscle stem cells from young donor mice, the cells not only repaired the injury within days, they caused the treated muscle to double in mass and sustain itself through the lifetime of the transplanted mice. “This was a very exciting and unexpected result,” said Professor Bradley Olwin of CU-Boulder’s molecular, cellular and developmental biology department, the study’s corresponding author. (more…)

New 3-D Model of RNA ‘Core Domain’ of Enzyme Telomerase May Offer Clues to Cancer, Aging

By Guest PostNovember 6, 2010Health, Scienceaging, cancer, cells, chromosomes, DNA, dna damage, enzyme, helical extension, juli feigon, medicine, nmr, nobel prize, nuclear magnetic resonance, physiology, proteins, pseudoknot, qi zhang, rna, spectroscopy, telomerase, telomeres, virus

A model representation of telomerase's RNA "core domain," determined by Juli Feigon, Qi Zhang and colleagues in Feigon's UCLA laboratory. Image credit: Juli Feigon, UCLA Chemistry and Biochemistry/PNAS

Telomerase is an enzyme that maintains the DNA at the ends of our chromosomes, known as telomeres. In the absence of telomerase activity, every time our cells divide, our telomeres get shorter. This is part of the natural aging process, as most cells in the human body do not have much active telomerase. Eventually, these DNA-containing telomeres, which act as protective caps at the ends of chromosomes, become so short that the cells die.

But in some cells, such as cancer cells, telomerase, which is composed of RNA and proteins, is highly active and adds telomere DNA, preventing telomere shortening and extending the life of the cell.

UCLA biochemists have now produced a three-dimensional structural model of the RNA “core domain” of the telomerase enzyme. Because telomerase plays a surprisingly important role in cancer and aging, understanding its structure could lead to new approaches for treating disease, the researchers say. (more…)

Coffee Protects Body from Cancer and Slows Down Aging

By PravdaJune 6, 20104 commentsHealthafrica, African monks, aging, antooxidant, beverage, blood pressure, caffeine, can cer, champagne, coffee, coffee beans, decaf, decaffeination, dichloromethane, erectile dysfunction, ethopian goatherder, green tea, insomnia, kaldi, nervous breakdown, organic solvent, red wine, south west university, tachycardia, tea, university of georgia, vascular wall contract

Here are some facts about coffee:

Fact 1. Coffee can be good for you

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Tag Archives: aging

UMD Study Shows Exercise May Protect Against Future Emotional Stress

Regrowing Hair: UCLA-VA Researchers May Have Accidentally Discovered a Solution

Stem Cell Transplants in Mice Produce Lifelong Enhancement of Muscle Mass

New 3-D Model of RNA ‘Core Domain’ of Enzyme Telomerase May Offer Clues to Cancer, Aging

Coffee Protects Body from Cancer and Slows Down Aging