All news from Social & Preventive Medicine / Community Medicine

Air Pollution in Mexico Linked with Alzheimer's Pathology

A new study by researchers at the Universities of Montana, Valley of Mexico, Boise State, Universidad Veracruzana, National Institute of Pediatrics and Paul-Flechsig-Institute for Brain Research heightens together with German company Analytica Jena concerns about the evolving and relentless Alzheimer's pathology observed in young Metropolitan Mexico City (MMC) urbanites. These findings are published in the Journal of Alzheimer's Disease .

Gene Vital to Circadian Rhythms: New Study

Circadian rhythms (from the Latin circa diem – "around a day") based on the Earth's 24-hour rotation have been observed since the fourth century. But it's only recently that scientists have come to understand the fundamental role of circadian rhythms in everything from body temperature to reproduction to metabolism.

Disruptions of our internal clocks are implicated in many health issues, including sleep and affective disorders, cardiovascular disease, and certain types of cancer, to the tune of billions of dollars in health care costs.

Tiny Tic-Tac-Toe: Microscopic Board Made Using DNA, Research

Move over Mona Lisa, here you eat tic-tac-toe . It was just about a year ago that Caltech scientists in the laboratory of Lulu Qian, assistant professor of bioengineering, announced they had used a technique known as DNA origami to create tiles that could be designed to self-assemble into larger nanostructures that carry predesigned patterns . They chose to make the world's smallest version of the iconic Mona Lisa.

Use of Jewelry to Relieve Teething Pain in Children, Warns FDA

The FDA warned that they should not be used to relieve teething pain in children or to provide sensory stimulation to persons with special needs, such as autism or attention-deficit/hyperactivity disorder (ADHD). The FDA has received reports of death and serious injuries to infants and children, including strangulation and choking, caused by teething jewelry, such as amber teething necklaces.

Universal Suicide Risk Screening in Medical Settings, New Guidance

A new report, authored in part by researchers at the National Institute of Mental Health (NIMH), part of the National Institutes of Health, provides guidance on how to implement universal suicide risk screening of youth in medical settings. The report describes a way for hospitals to address the rising suicide rate in a way that is flexible and mindful of limited resources.

New Changes Occurring in the Brain in Early Alzheimer's Disease

Researchers at the University of Eastern Finland have discovered new changes occurring in the human brain in the early stages of Alzheimer's disease. The researchers used a multiomic approach to determine RNA, protein, and phosphorylation levels and carried out further neurobioinformatic analyzes on them. The findings, drawing on data from a Finnish biobank of brain tissue samples, were published in Neurobiology of Disease.

Prevalence of Colistin-Resistant Bacteria in Residents in Vietnam

A team of researchers led by Osaka University examined the dissemination of colistin-resistant bacteria among residents of rural communities in Vietnam to find that the prevalence of colistin-resistant Escherichia coli (CR-E) in the intestines was extremely high, at about 70%. This Escherichia coli (E. coli) is a non-pathogenic bacterium, so the residents have no symptoms, but the detection of this type of E. coli in developed countries has been infrequently reported.

Destruction of HIV Reservoirs, New Approach

Current HIV treatments need to be taken for life by those infected as antiretroviral therapy is unable to eliminate viral reservoirs lurking in immune cells. Institut Pasteur scientists have identified the characteristics of CD4 T lymphocytes that are preferentially infected by the virus – it is their metabolic activity1 that enables the virus to multiply. Thanks to metabolic activity inhibitors, the researchers have managed to destroy these infected cells, or "reservoirs", ex vivo. Their findings were published in the journal Cell Metabolism .