Humans and other mammals have a lot in common. Depending on race, 80 to 98% of mammalian genetic makeup is identical to the human one. Nevertheless, the variety of life expectancy among mammals is huge; and so far, it was unclear, which impact the genetic makeup has on a species’ life span. In rodents, differences in life expectancy and morbidity during aging are particularly high: Despite…
Nearly 70 percent of the U.S. adult population meets the definition of overweight or obese, but a new study by University of Arkansas researchers shows the problem isn’t randomly distributed across the country. Instead, obesity is concentrated in areas with social and demographic factors that create what researchers term an “ecology of disadvantage.”
Belly fat affects the odds of women surviving kidney cancer but not men, according to a new study by researchers at Washington University School of Medicine in St. Louis. Half of female kidney cancer patients with substantial abdominal fat at the time of diagnosis died within 3 1/2 years, while more than half of women with little belly fat were still alive 10 years later, the researchers found.…
Alzheimer’s, Parkinson’s and Huntington’s disease may have more in common than their effects on the functions of the brain and spinal cord. And finding that common thread could lead to a treatment that could work for all three. A recent study by David Smith, associate professor of biochemistry in the West Virginia University School of Medicine, suggests that at the heart of all three…
Dining out more at restaurants, cafeterias and fast-food outlets may boost total levels of potentially health-harming chemicals called phthalates in the body, according to a new study. Phthalates, a group of chemicals used in food packaging and processing materials, are known to disrupt hormones in humans and are linked to a long list of health problems. The study is the first to compare…
It’s not unusual for your body to make “popping” or “cracking” sounds as you lean over, twist or reach for something. Fortunately, it’s also typically not a cause for worry. Dr. Aman Dhawan, an orthopedic sports medicine specialist at Penn State Health Milton S. Hershey Medical Center, said complaints about such joint sounds are common, but are usually nothing to be concerned about.…
An international research group, including scientists at the University of Maryland School of Medicine, studying 520,000 people from around the world has identified 22 new genetic risk factors for stroke, tripling the number of gene regions known to affect stroke risk. The results show that stroke shares genetic influences with other vascular conditions, especially blood pressure, but also…
The recent ACC/AHA Guidelines have increased the number of patients said to have hypertension by up to 40 percent (new 130/80 mmHg). The international recommendation is to treat hypertension with angiotensin converting enzyme inhibitors (ACEIs). These drugs, however, have significant adverse effects: Often a chronic dry cough leads to patients withdrawing from treatment. On rare occasions, ACEIs…
Imagine a small paper device that can rapidly reveal from a drop of blood whether an infection is bacterial or viral. The device could help reduce the overuse of antibiotics – which kill bacteria, not viruses. Misuse of antibiotics has led to antimicrobial resistance, a growing global public health issue. Senior biomedical engineering students at Rutgers University–New Brunswick came up with…
A Case Western Reserve University School of Medicine researcher has compiled evidence from more than 100 publications to show how obesity increases risk of 13 different cancers in young adults. The meta-analysis describes how obesity has shifted certain cancers to younger age groups, and intensified cellular mechanisms promoting the diseases. Cancer typically associated with older adults over 50…
Until very recently, Parkinson’s had been thought a disease that starts in the brain, destroying motion centers and resulting in tremors and loss of movement. New research published this week, shows the most common Parkinson’s gene mutation may change how immune cells react to generic infections like colds, which in turn trigger the inflammatory reaction in the brain that causes…
Walking 10,000 steps a day or a doing a quick workout from a phone app - all of those tactics could work to reduce risk of disease and death, according to new research. The study found that even brief trips up and down stairs would count toward accumulated exercise minutes and reducing health risks so long as the intensity reaches a moderate or vigorous level. The most dramatic improvements in…
Extensive surgery involving mastectomy and removal of several lymph nodes can be safely avoided for more women with some types of breast cancer, if they receive targeted drugs before surgery, according to research presented at the 11th European Breast Cancer Conference. The study focused on women with HER2 positive breast cancer, an aggressive form of the disease, who were given a targeted drug…
A UT Southwestern study in mice provides new clues about how a class of anti-rejection drugs used after organ transplants may also slow the progression of early-stage Alzheimer’s disease. Alzheimer’s, a progressive form of dementia, affects an estimated 5 million people in the U.S. – a number expected to nearly triple by 2050. Although Alzheimer’s usually strikes after age 65, changes in…
Healthy women who carry a breast cancer-causing mutation in the BRCA1 gene, not only reduce their risk of developing the disease but also their chances of dying from it if they have both breasts removed, according to new research presented at the 11th European Breast Cancer Conference. However, the study also found that for women with a mutation in the BRCA2 gene, there was no difference in their…
A compound in beets that gives the vegetable its distinctive red color could eventually help slow the accumulation of misfolded proteins in the brain, a process that is associated with Alzheimer’s disease. Scientists say this discovery could lead to the development of drugs that could alleviate some of the long-term effects of the disease, the world’s leading cause of dementia. The…
Feline AIDS is caused by the Feline Immunodeficiency Virus (FIV), which is very similar to the HIV-1 virus that affects millions of humans. While FIV does not infect humans, many groups research the virus to benefit cats, and perhaps more importantly, because of its many parallels with the AIDS virus. Despite the use of dedicated drugs, HIV-1 manages to thrive and multiply within the cell and…
This year’s unexpectedly aggressive flu season reminds everyone that although the flu vaccine can reduce the number of people who contract the virus, it is still not 100 percent effective. Researchers report that a tweak to a small-molecule drug shows promise for future production of new antiviral therapies that could help patients, regardless of the strain with which they are infected. The…
The decline in cancer of the intestines – colorectal cancer – is one of the major success stories of the past 30 years in Europe say researchers, as they predict that in 2018 death rates from the disease will continue to fall by around seven per cent compared to 2012. In a study published in the leading cancer journal Annals of Oncology, researchers predict that death rates in the European…
The heart is capable of terminating arrhythmias itself after local gene therapy, potentially avoiding the need for patients to undergo painful electric shocks, according to a proof-of-concept study presented today at EHRA 2018, a European Society of Cardiology congress. Atrial fibrillation is the most common heart rhythm disorder (arrhythmia). Treatment aims to restore the heart’s normal rhythm…
Throughout life, DNA is constantly being damaged by environmental and intrinsic factors and must be promptly repaired to prevent mutations, genomic instability, and cancer. Different types of damages are repaired by numerous proteins organized into damage-specific pathways. The proteins from different pathways must be spatially and temporally coordinated in order to efficiently repair complex DNA…
Stephen Hawking, a visionary physicist, as well as a pop culture icon, died March 14 2018 at the age of 76, leaving scientists, doctors, space enthusiasts and “Simpsons” fans alike to reflect on his contributions to modern cosmology and entertainment. Hande Ozdinler, an associate professor in the department of neurology in Northwestern’s Feinberg School of Medicine, reflects on Hawkings…
The idea that it might be possible to be overweight or obese but not at increased risk of heart disease, otherwise known as the “obesity paradox”, has been challenged by a study of nearly 300,000 people published in in the European Heart Journal.
While gastritis and gastric ulcer disease used to be put down to stress and dietary factors, it was discovered in the 1980s that the actual culprit is infection with a bacterium, H. pylori. This pathogen is now classed as a type I carcinogen by the WHO, as it is the major risk factor for development of gastric carcinoma. Attempts to develop a vaccine against H. pylori have been unsuccessful and…
Health chiefs are failing to investigate a clear pattern of rising death rates and worsening health outcomes in England and Wales, argue experts in The BMJ today. Lucinda Hiam at the London School of Hygiene & Tropical Medicine and Danny Dorling at the University of Oxford say weekly mortality figures show 10,375 additional deaths (a rise of 12.4%) in England and Wales in the first seven…
