Green tea extract prevents the development of nonalcoholic liver steatosis in rats fed a high-fat diet.

Green tea contains many polyphenolic constitutes, which might prevent non-alcoholic fatty liver disease (NAFLD). We aimed to investigate whether green tea extract (GTE) given at doses reflecting habitual consumption of green tea beverages prevents development of NAFLD in rats fed a high-fat diet (HFD). Twenty-four male Wistar rats were randomly divided into four equal groups (two study and two control groups).

Memantine - neuroprotective drug in aging brain.

Aging is the process of progressive accumulation of changes over time, which is additionally connected with increasing susceptibility to some diseases and ultimately leads to death. Aging is associated mainly with loss of permanent cells, e.g.

[The awareness of carcinogenic effect of tobacco smoke--a questionnaire survey of students and employees of Collegium Medicum of Nicolaus Copernicus University].

Smoking is currently the most significant risk factor for health according to WHO statements. It has been proven that smoking is the cause of many diseases, for example cardiovascular and respiratory tract diseases as well as impaired fertility and decreased immunity. The adverse effects of cigarette smoking on pregnancy and health of children were also proved.

[The awareness of addictive effect of nicotine --a questionnaire survey of students and employees of CM UMK].

Tobacco is one of the main factors responsible for the development of human tumors, cardiovascular diseases and non-malignant respiratory diseases. Tobacco products are harmful to health and they contain nicotine, which is highly addictive. Many studies in humans and in animal models have shown that nicotine is addictive psychoactive drug, which triggers a cascade of neurobiological events in the brain reward centers leading to the intensity of behavior what aims to enhanced use of tobacco.