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Health

South San Francisco Senior ServicesSENIOR HEALTH & FITNESS FAIR

South San Francisco Senior Services will conduct their 20th annual free Senior Health &Fitness Fair from 9 a.m. to noon on Friday, March 10, 2017, at the Municipal ServicesBuilding, 33 Arroyo Drive, South San Francisco.The Senior Health & Fitness Fair is sponsored by the City of South San Francisco SeniorServices Division of the Parks & Recreation Department and co-sponsored by KaiserPermanente, Westborough Royale Assisted Living and Health Plan of San Mateo. The event includes: Free screenings for blood pressure, cholesterol, glucose and glaucoma.  Information on emotional well-being and medication safety. Tips on dealing with women’s and men’s health issues and preparing an advance health directive. Suggestions on nutrition, skin care and allergies.

 

 More than 70 resources including Always Best Care, HICAP (Insurance Counseling), Legal Aid Society, Medical Care Professionals, South San Francisco Police & Fire Departments, HIP Housing and much, much more!The event is open to seniors on a first-come, first-serve basis. For more information, call(650) 829-3820 or email This email address is being protected from spambots. You need JavaScript enabled to view it. or This email address is being protected from spambots. You need JavaScript enabled to view it..###February 25, 201

Study identifies "late-life" genes only active in response to stress, aging

SAN FRANCISCO –A new study indicates that a subset of genes involved in daily circadian rhythms, or the "biological clock," only become active late in life or during periods of intense stress when they are most needed to help protect critical life functions.
The findings, made by researchers at Oregon State University (OSU) in a study on fruit flies and published Tuesday in Nature Communications, may help combat serious stresses associated with age, disease or environmental challenges, and help explain why aging is often accelerated when the biological clock is disrupted.
As part of a stress response mechanism that was previously unknown and its rhythmic activity late in life was not understood, this group of genes were named "late-life cyclers," or LLCs, by former OSU graduate student and lead author of the study, Rachael Kuintzle. At least 25 such genes become rhythmic with age, and the function of some of them remains unclear.
Circadian rhythms, which are natural to an organism but synchronized by the light/dark cycle of a 24-hour day, are so important to life that the same genes controlling biological processes have been traced from fruit flies to humans, retained through millions of years of evolution. These genes are found throughout the nervous system and peripheral organs, and affect everything from sleep to stress reaction, feeding patterns, DNA repair, fertility and even the effectiveness of medications.
People with routine disruptions of their circadian rhythms and sleep patterns have been found to have a shorter lifespan and be more prone to cancer.
About the LLCs, Jadwiga Giebultowicz, a professor in the OSU College of Science, co-senior author on the study and international expert on the mechanisms and function of the biological clock, noted that "this class of LLC genes appear to become active and respond to some of the stresses most common in aging, such as cellular and molecular damage, oxidative stress, or even some disease states."
"Aging is associated with neural degeneration, loss of memory and other problems, which are exacerbated if clock function is experimentally disrupted," Giebultowicz was quoted as saying in a news release from OSU. "The LLC genes are part of the natural response to that, and do what they can to help protect the nervous system."
The increased, rhythmic expression of these genes during times of stress, the researchers believe, are another example of just how biologically important circadian rhythms are, as they help to regulate the activity of hundreds of genes essential to the processes of life. And as aging brings with it a host of new problems, the LLC genes become more and more active.
"Discovery of LLC genes may provide a missing link, the answer to why the disruption of circadian clocks accelerates aging symptoms," said David Hendrix, an assistant professor in the OSU College of Science and College of Engineering, and co-senior author on the study, who explained that some LLC genes are known to play roles in sequestering improperly "folded" proteins or helping them refold. And this could help prevent formation of protein aggregates that can lead to age-related neurodegeneration.
In addition, the study shows that intense stress at any point in life can cause some of the LLC genes to spring into action.
"In experiments where we created artificial oxidative stress in young fruit flies, the LLC genes were rhythmically activated," said Eileen Chow, an OSU faculty research assistant and co-author.
"Some of these same genes are known to be more active in people who have cancer. They appear to be a double-edged sword, necessary during times of stress but possibly harmful if activated all the time," Chow said. (PNA/Xinhua)

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