Diseases, Conditions, Syndromes

Herbal, dietary supplements cause one-fifth of hepatotoxicity

(HealthDay)—Herbal and dietary supplement (HDS)-induced liver injury accounts for 20 percent of cases of hepatotoxicity in the United States, according to research published online Sept. 27 in Hepatology.

Diabetes

Steroid avoidance may not help reduce posttransplant diabetes

(HealthDay)—For kidney transplant recipients, steroid avoidance has limited impact for reducing new-onset diabetes after transplantation (NODAT), according to a study published in the July issue of the American Journal ...

Oncology & Cancer

Popular weed killer deemed probable carcinogen by UN

One of the world's most popular weed-killers—and the most widely used kind in the U.S.—has been labeled a probable carcinogen by the International Agency for Research on Cancer.

Immunology

Study finds unique form of chronic sinusitis in older patients

Older patients with a diagnosis of chronic sinusitis—a disease of the nasal cavity and paranasal sinuses that often persists over many years—have a unique inflammatory signature that may render them less responsive to ...

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Steroid

A steroid is a terpenoid lipid characterized by its sterane or steroid nucleus: a carbon skeleton with four fused rings, generally arranged in a 6-6-6-5 fashion. Steroids vary by the functional groups attached to these rings and the oxidation state of the rings. Hundreds of distinct steroids are found in plants, animals, and fungi. All steroids are made in cells either from the sterol lanosterol (animals and fungi) or from the sterol cycloartenol (plants). Both sterols are derived from the cyclization of the triterpene squalene.

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