Ke-zhou Li

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Seven experiments were performed to investigate the sensitivity of the hamster pineal gland to exogenously administered norepinephrine (NE). In these studies NE (1 mg/kg) administration was preceded (10 min earlier) by the injection of the catecholamine uptake inhibitor desmethylimipramine (DMI; 5 mg/kg). When DMI and NE were given at night, the hamsters(More)
OBJECTIVE To evaluate the effect of hepatocyte growth factor (HGF) on intestinal permeability and bacterial translocation after small bowel transplantation in rats. METHODS Twenty Wistar rats were as receptors and twenty SD rats as donors. After heterotopic intestinal grafting, cyclosporine A was administered at 6 mg/kg x day intramuscularly for(More)
Adult male Syrian (golden) hamsters, maintained under either 22 +/- 2 or 32 +/- 2 degrees C, were treated with 8 or 11 weeks of exposure to either long photoperiod (14:10), short photoperiod (8:16), or to long photoperiod with a daily afternoon melatonin injection. By 8 weeks, the animals kept at 22 degrees C and treated with daily afternoon melatonin(More)
Female Syrian hamsters were kept in a light (14:10 h light:dark cycle, lights on 0600 h)- and temperature (22 or 30 degrees C)-controlled room; some groups were treated with an afternoon s.c. injection of melatonin (6.25, 12.5, or 25 micrograms/day) for 11 or 14 weeks. The melatonin-induced suppression of the reproductive system in hamsters maintained at 22(More)
A single injection of either 5 or 10 mg/kg 8-methoxypsoralen (8-MOP) was given intraperitoneally to male rats at the end of the 14 h light phase (at 2000 h). Two h later (at 2200 h), when the normal nocturnal surge of N-acetyltransferase (NAT) activity and melatonin content in the pineal gland had begun in vehicle-injected controls, mean pineal NAT after(More)
OBJECTIVE To investigate the effects of epidermal growth factor(EGF) on mucosal structure after small bowel transplantation in rat. METHODS Total small bowel transplantation was performed in inbred Wistar(RT1k) rats heterotopically, either total parenteral nutrition(control group, n=10) or TPN supplemented with epidermal growth factor(EGF group, n=10) was(More)
OBJECTIVE To investigate the effect of 90% portal branch ligation on liver regeneration and expression of metalloproteinases and tissue inhibitors of metalloproteinases in rats. METHODS Ninety-six SD rats were randomly divided into Sham-PBL group and portal vein branches ligation group. The weight of both ligated and unligated lobes of liver were measured(More)
A modal Based on rough set theory and BP neural network for the heart disease severity diagnosis and evaluation is proposed. According to the heart disease symptoms data quantized by Konhonen neural network, a decision table is created and reduced using the rough set theory. After reducing the decision table, the symptoms data are the input of the BP neural(More)
Daily afternoon injections of 25 micrograms melatonin for 12 weeks had no effect on testicular weights of male rats kept in long photoperiod (14L:10D); similarly, exposure of rats to short photoperiod (2L:22D) had no effect on gonadal weight. However, rats maintained in a long or short photoperiod and implanted every 2 weeks with a 15 mm Silastic pellet(More)
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