Published Lean body mass, age linked with alcohol elimination rates in women
(via sciencedaily.com) Original source Research links women's lean body mass with how quickly they eliminate alcohol from their system. Women with obesity and those who are older eliminate alcohol from their bloodstreams faster than those of normal weight and those who are younger.
Published Research challenges current thinking on the genetic causes of very early menopause
(via sciencedaily.com) Original source The genetic causes of very early menopause will have to be reconsidered after researchers found that nearly all women who carried variations thought to cause the condition in fact had their menopause at an older age.
Published Ketone supplements worsen performance in trained endurance athletes, researchers find
(via sciencedaily.com) Original source Kinesiologists at McMaster University have found ketone supplements, used by some athletes hoping to cross the finish line faster, may in fact worsen performance. The new study tackles contradictory research findings related to the effectiveness of ketone supplements, which have gained popularity among athletes seeking a competitive advantage.
Published One in five women become pregnant naturally after having a baby conceived with IVF
(via sciencedaily.com) Original source New research analyzed data from 11 studies of over 5,000 women around the world between 1980 and 2021, to evaluate how common it is to get pregnant naturally after having a baby conceived by fertility treatment. Around 20% of women who needed fertility treatment, such as IVF, to conceive their first child are likely to get pregnant naturally in the future, finds a new study.
Published New study gives clues on why exercise helps with inflammation
(via sciencedaily.com) Original source Researchers have long known that moderate exercise has a beneficial impact on the body's response to inflammation, but what's been less understood is why. New research done on a mouse model suggests that the answers may lie at the production level of macrophages -- white blood cells responsible for killing off infections, healing injury and otherwise acting as first responders in the body.
Published New diagnostic finds intact sperm in infertile men
(via sciencedaily.com) Original source Researchers develop new diagnostic tool to visualize protein biomarkers of well-developed sperm to determine if surgical sperm extraction may be successful for certain infertile men.
Published Elimination of type of bacteria suggests treatment for endometriosis
(via sciencedaily.com) Original source A research group has discovered that using an antibiotic to target Fusobacterium, a common bacterium that causes inflammation, improved the symptoms of endometriosis. Their findings suggest an alternative treatment for the disease.
Published Taurine may be a key to longer and healthier life
(via sciencedaily.com) Original source A study finds that deficiency of taurine, a molecule produced in our bodies, drives aging, and taurine supplements can improve health and increase lifespan in animals.
Published Researchers successfully induce primate oocytes in the lab
(via sciencedaily.com) Original source The many types of cells in the human body are produced through the process of differentiation, in which stem cells are converted to more specialized types. Currently, it is challenging for researchers to control the differentiation of stem cells in the lab (in vitro). Of particular interest are oocytes, which are female germ cells that develop into eggs. Understanding their development could have far-ranging impacts, from infertility treatment to conservation of endangered species. A new study has successfully induced meiotic (dividing) oocytes from the embryonic stem cells of cynomolgus monkeys, which share many physiological traits with humans. By establishing a culture method for inducing the differentiation of meiotic oocytes, the researchers aimed to shed light on germ cell development in both humans and other primates.
Published The fast and the fibrous: Developing the muscles you need for speed
(via sciencedaily.com) Original source Researchers have identified the role of the large Maf transcription factor family in regulating fast twitch muscle fibers. A mouse model lacking Maf expression in the skeletal muscles exhibited a significant loss of type IIb myofibers, a subtype of fast twitch fibers. Overexpression of large Mafs promoted type IIb muscle fiber induction. The large Maf family may represent potential targets for developing treatments for muscular disorders involving fast twitch fibers.
Published Running throughout middle age keeps 'old' adult-born neurons 'wired'
(via sciencedaily.com) Original source A new study provides novel insight into the benefits of exercise, which should motivate adults to keep moving throughout their lifetime, especially during middle age. Long-term exercise profoundly benefits the aging brain and may prevent aging-related memory function decline by increasing the survival and modifying the network of the adult-born neurons born during early adulthood, and thereby facilitating their participation in cognitive processes.
Published Study finds brain connectivity, memory improves in older adults after walking
(via sciencedaily.com) Original source Regular walks strengthen connections in and between brain networks, according to new research, adding to growing evidence linking exercise with slowing the onset of Alzheimer's disease. The study examined the brains and story recollection abilities of older adults with normal brain function and those diagnosed with mild cognitive impairment, which is a slight decline in mental abilities like memory, reasoning and judgment and a risk factor for Alzheimer's.
Published Ready, set, go: New study shows how marathon running affects different foot muscles
(via sciencedaily.com) Original source Marathon running is a popular sport. However, long-distance running can weaken and damage foot muscles, leading to chronic pain and running-related injuries. A new study reveals that marathon running can reduce foot arch height, as well as induce damage to extrinsic foot muscles, which connect the lower leg and foot.
Published Researchers pinpoint brain cells that drive appetite in obesity
(via sciencedaily.com) Original source A group of brain cells discovered by researchers reveals a potential new approach to anti-obesity treatment.
Published Physical activity crucial for poststroke recovery
(via sciencedaily.com) Original source After a stroke, physical activity can be pivotal to successful recovery. People who spend four hours a week exercising after their stroke achieve better functional recovery within six months than those who do not, a new study shows.
Published Happy worms have healthy eggs
(via sciencedaily.com) Original source Researchers have exposed roundworms (a well-established model organism in biological research) to selective serotonin reuptake inhibitors (SSRIs), a class of drugs used for treating depression and anxiety. Surprisingly, this treatment improved the quality of aging females' egg cells.
Published Scientists discover the dynamics of an 'extra' chromosome in fruit flies
(via sciencedaily.com) Original source Most chromosomes have been around for millions of years. Now, researchers have revealed the dynamics of a new, very young chromosome in fruit flies that is similar to chromosomes that arise in humans and is associated with treatment-resistant cancer and infertility. The findings may one day lead to developing more targeted therapies for treating these conditions.
Published Behavior patterns of people who achieve clinically significant weight loss
(via sciencedaily.com) Original source A new study analyzing data on over 20,000 U.S. adults links a healthier diet and increased exercise to weight loss that reduces heart disease risk -- while associating skipping meals and taking prescription diet pills with minimal weight loss, weight maintenance or weight gain.
Published Diet high in fruit and vegetables linked to lower miscarriage risk
(via sciencedaily.com) Original source A preconception and early-pregnancy diet that contains lots of fruit, vegetables, seafood, dairy, eggs and grain may be associated with reducing risk of miscarriage, a new review of research suggests.
Published New genetic target for male contraception identified
(via sciencedaily.com) Original source Discovery of a gene in multiple mammalian species could pave the way for a highly effective, reversible and non-hormonal male contraceptive for humans and animals. Researchers identified expression of the gene, Arrdc5, in the testicular tissue of mice, pigs, cattle and humans. When they knocked out the gene in mice, it created infertility only in the males, impacting their sperm count, movement and shape.