Increased Sensitivity to Long-term 5-Fluorouracil Exposure of Human Colon Cancer HT-29 Cells Resistant to Short-term Exposure

effects of long-term exposure to hydrogen sulfide on human red blood cells

background: hydrogen sulfide (h 2 s) exhibits both physiological and toxicological roles in the biological systems. acute exposure to high levels of h 2 s is life threatening while long-term exposure to ambient levels of h 2 s elicits human health effects. objective: to study the harmful effects of long-term exposure to low levels of h 2 s on human blood cells. methods: 110 adult workers from i...

Increased risk of endometriosis by long term exposure to xenoestrogens: A case control study in Iranian women

Aims of the study: Endometriosis is a prevalent gynecologic disorder in young women at reproductiveage but the underlying risk factors have not identified yet in Iran and other neighboringcountries. Persistent exposure to environmental endocrine disrupting chemicals (EDCs) in particulardioxins, PAHs and polychlorinated biphenyls (PCBs) with xenoestrogenic potentials have beenhypothesized in the...

Short Communication: Haematological and immunological responses of sea bass (Dicentrarchus labrax) to a short-term exposure to increased water levels of nitrate

Histomorphometrical changes of oviduct during the long-term exposure of breeder hens to extra thyroxine

In this research a 100 day long treatment period was considered to unmask the probable adverse effects of long-term induced hyperthyroidism on histomorphometrical attributes of the oviduct in broiler breeder hens. A total of seventy 47-week-old Cobb 500 breeder hens were randomly allotted to two treatment groups (5 replicates of 7 hens each). Thyroxine (T4) was orally administered to the hypert...

Short Communication: Haematological and immunological responses of sea bass (Dicentrarchus labrax) to a short-term exposure to increased water levels of nitrate