Health Sciences

The immune system not only responds to infections and other potentially problematic abnormalities in the body, it also contains a built-in brake in the form of regulatory T cells, or Tregs. Tregs ensure that inflammatory responses don’t get out of hand and do damage. In autoimmune diseases, sometimes these Treg cells don’t act as they should.

Tray tables, bed rails, light switches, and toilets: All are common vectors for swapping germs between patients and health care workers.

A large randomized clinical trial of an emergency department (ED)-based program aimed at reducing incidents of excessive drinking and partner violence in women did not result in significant improvements in either risk factor, according to a new study from researchers at the Perelman School of Medicine at the University of Pennsylvania

Moles are benign tumors found on the skin of almost every adult. Scientists have known for years that a mutation in the BRAF gene makes them start growing, but until now haven’t understood why they stop.

esults of a phase one trial show that an investigational topical drug, resiquimod gel, causes regression of both treated and untreated tumor lesions and may completely remove cancerous cells from both sites in patients with early stage cutaneous T cell lymphoma (CTCL) – a rare type of non-Hodgkin lymphoma that affects the skin.

Cancer researchers already know of some oncogenes and other factors that promote the development of colon cancers, but they don’t yet have the full picture of how these cancers originate and spread.

By now, the old saw, “You are what you eat,” has been well-used in describing the microbiome. However axiomatic that phrase may be, a new study has also found that who and when that consumption is done can affect microbiome make-up.

The roughly nine million Americans who rely on prescription sleeping pills to treat chronic insomnia may be able to get relief from as little as half of the drugs, and may even be helped by taking placebos in the treatment plan, according to new research published today in the journal Sleep Medicine by researchers from the 

Charging people to participate in research studies is likely to undermine the fundamental ethical basis of clinical research, according to a new paper written by bioethicists, including lead author Ezekiel Emanuel, MD, PhD, chair of the department of Medical Ethics and Health Policy at the Perelman School of Medicine

The importance of a diet rich in fish oils – now a billion dollar food-supplement industry -- has been debated for over half a century. A few large clinical trials have supported the idea that fish oils confer therapeutic benefits to patients with cardiovascular disease. Researchers think that hearts and blood vessels may benefit in part from their anti-inflammatory properties.