Archive for the ‘biotech/medical’ category: Page 1806
Dec 18, 2019
Scientists Are Getting Closer to Developing an HIV Vaccine
Posted by Paul Battista in category: biotech/medical
Dec 18, 2019
The Latest Science on Chronic Pain is Fascinating
Posted by Genevieve Klien in categories: biotech/medical, science
Pain meds and surgeries are often no better at alleviating chronic pain than placebo pills and pretend surgeries, frustrating physicians and patients alike. Researchers are starting to get some answers.
Dec 17, 2019
New tool reveals DNA structures that influence disease
Posted by Saúl Morales Rodriguéz in categories: biotech/medical, information science
Disruption of certain DNA structures—called topologically associating domains, or TADs—is linked with the development of disease, including some cancers. With its newly created algorithm that quickly locates and helps elucidate the complex functions of TADs, an international team of researchers is making it easier to study these important structures and help prevent disease.
“On your DNA you have genes and regulatory elements—such as promotors and enhancers—that control gene expression, but these two things can be far away from each other,” said Qunhua Li, associate professor of statistics, Penn State. “Similar to a dresser drawer that keeps your clothes organized and available for use, TADs bring genes together with their regulatory elements, which enables them to begin the process of gene expression.”
Gene expression is the process by which the information encoded in DNA gives rise to observable traits.
Dec 17, 2019
China Responds Slowly, and a Pig Disease Becomes a Lethal Epidemic
Posted by Genevieve Klien in categories: biotech/medical, food
The bungled effort to contain African swine fever could result in higher Chinese food costs for years and shows the limits of Beijing’s top-down approach to problems.
Dec 17, 2019
Mantis shrimp can detect cancer before symptoms appear
Posted by Paul Battista in category: biotech/medical
Dec 17, 2019
Senescent Cell Clearance Declines With Age
Posted by Paul Battista in categories: biotech/medical, life extension
A new study sheds light on the accumulation of senescent cells and suggests that therapies that remove them could be beneficial both immediately and in the long term for human health and longevity.
Normally, as cells become damaged beyond repair, exhausted, and no longer able to replicate, they are removed from the body via a process known as apoptosis, which is a kind of self-destruct program initiated by the cell, or removed by the immune system. This system acts as a safety net to prevent damaged cells from remaining active and, in the context of cells damaged by mutations, a way to prevent cancer.
Unfortunately, as we age, this disposal system, like many others in our body, begins to falter and ultimately fail. This leads to the accumulation of unwanted, damaged senescent cells in every tissue of our body. This build-up of senescent cells is one of the proposed reasons we age and has been the focus of intense research in the last few years.
Dec 17, 2019
Ways to get more fibre into your diet
Posted by Paul Battista in category: biotech/medical
Fibre’s role goes beyond keeping our digestive tract in order. It can also help with weight loss or maintenance, control blood sugar, lower cholesterol levels and reduce the risk of heart disease and diabetes.
However, many of us are not hitting our daily recommended amount of fibre — 20g for women and 26g for men.
Also, one in four Singaporeans experience chronic constipation. If you are one of them, here is how you can add fibre to your diet.
❄7th Day of Christmas ❄!!!
On the 7th Day of Christmas, we celebrate a wonderful healing journey.
Past Stage 4 CHIPSA patient Dalilah, shrank her tumor in just 3 weeks.
Dec 17, 2019
Mitochondria are the ‘canary in the coal mine’ for cellular stress
Posted by Paul Battista in category: biotech/medical
Mitochondria, tiny structures present in most cells, are known for their energy-generating machinery. Now, Salk researchers have discovered a new function of mitochondria: they set off molecular alarms when cells are exposed to stress or chemicals that can damage DNA, such as chemotherapy. The results, published online in Nature Metabolism on December 9, 2019, could lead to new cancer treatments that prevent tumors from becoming resistant to chemotherapy.
“Mitochondria are acting as a first line of defense in sensing DNA stress. The mitochondria tell the rest of the cell, ‘Hey, I’m under attack, you better protect yourself,’” says Gerald Shadel, a professor in Salk’s Molecular and Cell Biology Laboratory and the Audrey Geisel Chair in Biomedical Science.
Most of the DNA that a cell needs to function is found inside the cell’s nucleus, packaged in chromosomes and inherited from both parents. But mitochondria each contain their own small circles of DNA (called mitochondrial DNA or mtDNA), passed only from a mother to her offspring. And most cells contain hundreds — or even thousands — of mitochondria.
