A new study from Duke Health finds that THC affects epigenetics changing the DNA of sperm in men of child-bearing age.
Similarly to previous research where the scientists showed that tobacco smoke, pesticides, flame retardants and even obesity can alter sperm, the new study demonstrates THC also affects epigenetics, triggering structural and regulatory changes in the DNA of users’ sperm.
Scott Kollins, Ph.D., professor in psychiatry and behavioral sciences at Duke and senior author of the study, explains: “What we have found is that the effects of cannabis use on males and their reproductive health are not completely null, in that there’s something about cannabis use that affects the genetic profile in sperm. We don’t yet know what that means, but the fact that more and more young males of child-bearing age have legal access to cannabis is something we should be thinking about.”
Researchers from European institutions and those from the U.S., including the London School of Economics and Political Science in the United Kingdom, and the Stanford University School of Medicine in California, suggest that systematic exercise helps decrease systolic blood pressure, which measures the blood pressure in the blood vessels as the heart beats.
For the study, they analyzed the data from 194 clinical trials that focused on antihypertensive drugs and their impact on systolic blood pressure, and 197 clinical trials, examining the effect of systematic exercise on blood pressure measurements. These trials provided information from 39,742 participants in total.
Dr. Huseyin Naci, one of the lead researchers, explains: “We don’t think, on the basis of our study, that patients should stop taking their antihypertensive medications. But we hope that our findings will inform evidence-based discussions between clinicians and their patients.”
A new study, published in the JAMA Psychiatry medical journal, finds a link between the postnatal depression in fathers and mental health issues in their daughters later on.
However, fathers’ mental health has no that effect on sons, according to researchers from the universities of Cambridge, Bristol, Oxford, and Imperial and UCL in London. The scientists think this is due to the fact that girls may be more sensitive to the way their fathers interact with them as a baby.
The authors of the study say in their paper: “We have found girls with fathers with depression during the postnatal period are at risk of developing depression after puberty, but such risk is not seen in boys.”
Researchers from Aberdeen and Durham Universities developed a medication based on vitamin A, found in Brussels sprouts and carrots, that may stop the breakdown of nerves and brain cells leading to the Alzheimer’s disease.
Having completed a two-year project with the cost 250,000, the scientists developed vitamin A synthetically and hope that now they are coming closer to the treatment of such conditions as Alzheimer’s, Parkinson’s, and motor neuron disease.
Lead author Professor Peter McCaffery, who researches vitamin A at Aberdeen University, comments: “We are moving forward with a new therapeutic which could be used to help people with Alzheimer’s disease. Our work is still at an early stage but we believe this is a positive development and the new drugs seem to protect [nerve cells].”
A new study, published in the journal Neurology, suggests that a six-month regimen of aerobic exercise may reverse the mild cognitive impairment (MCI) in senior adults.
To study the effect of exercising, a team of researchers included 160 people with the average age 65 years who lead a sedentary way of life at the beginning of the study and had the risk of cardiovascular disease and symptoms of MCI.
The participants were divided into four groups: one group did aerobic exercises, the second adhered to the DASH diet without exercising, the third group did exercises and ate according to the DASH diets, the fourth group only received health-related educational phone calls.
Lead researcher James A. Blumenthal, Ph.D. of Duke University Medical Center in Durham, NC, says: “The results are encouraging in that in just 6 months, by adding regular exercise to their lives, people who have cognitive impairments without dementia may improve their ability to plan and complete certain cognitive tasks.”
A new study, executed by scientists from the Karolinska Institute in Sweden, finds that a compound in leafy green vegetables may help prevent nonalcoholic fatty liver disease (NAFLD).
A team of scientists studied the effect of the leafy greens in mice, dividing them into three groups with different diets. One group received a high-fat diet, an equivalent to a Western diet. Another group received the same food but supplemented with inorganic nitrate, a compound found in leafy greens. The third group, a control group, received a normal diet.
One of the senior researchers Mattias Carlström, an associate professor in the Department of Physiology and Pharmacology at the Karolinska Institutet, says: “When we supplemented with dietary nitrate to mice fed with a high-fat and sugar Western diet, we noticed a significantly lower proportion of fat in the liver.”
All original content on these pages is fingerprinted and certified by Digiprove