title: Chronic mercuric chloride intoxication in digestive system of Channa punctatus.
abstract: The effect of exposure to a sublethal concentration (0.30 mg/l) of mercuric chloride on the activities of alkaline phosphatase, acid phosphatase, amylase, trypsin, and pepsin has been examined at intervals of 7, 15, and 30 d in the digestive system of a teleost fish, Channa punctatus. Inhibition of the activities of all these enzymes was noted after the first week of treatment. Treatment of the fish for 15 d resulted in marked increases in the activities of all the enzymes. A slight fall in enzyme activity was recorded after 30 d, but the overall activity was higher than in control fish.
mesh_terms: D000135:Acid Phosphatase / Q000378:metabolism; D000469:Alkaline Phosphatase / Q000378:metabolism; D000681:Amylases / Q000378:metabolism; D000818:Animals; D002908:Chronic Disease; D005399:Fishes; D005767:Gastrointestinal Diseases / Q000139:chemically induced / Q000503:physiopathology*; D008630:Mercury Poisoning / Q000201:enzymology / Q000503:physiopathology*; D010434:Pepsin A / Q000378:metabolism; D013997:Time Factors; D014357:Trypsin / Q000378:metabolism
chemical_list: D000469:Alkaline Phosphatase; D000135:Acid Phosphatase; D000681:Amylases; D014357:Trypsin; D010434:Pepsin A