Chinese Med J Peking
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Chinese Med J Peking · Dec 1999
Comparative StudyComparative frequency of bone sarcomas among different racial groups.
To analyse comparatively the relevant data from bone tumor registries in China, Japan, and the United States. ⋯ The findings from this analysis provide useful information for the epidemiologic study and the clinical diagnosis of bone tumors.
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Chinese Med J Peking · Dec 1999
Additive potentiation by co-application of propofol and sevoflurane on GABA-induced chloride current in cultured neurons from rat dorsal root ganglia.
To investigate the effects of various concentrations of sevoflurane and propofol and a combination of the two agents on chloride current induced by bath utilization of 3 x 10(-6) mol/L gamma-aminobutyric acid (GABA) in the rat dorsal root ganglia neurons maintained in primary culture. ⋯ Either sevoflurane or propofol and their combination at clinically relevant concentrations potentiate the GABA-induced chloride current, which may at least partially contribute to the anesthetic mechanism. Additive interaction obtained with a co-application of propofol and sevoflurane may provide an evidence for a clinical combination of these two anesthetic agents.
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Chinese Med J Peking · Dec 1999
Messenger RNA expressions of vasopressin system and aquaporin-2 in adriamycin-induced nephrotic rats and effects of astragalus membranaceus.
To investigate the expressions of hypothalamic arginine vasopressin (AVP) mRNA, renal AVP V2 receptor mRNA, and AVP-dependent aquaporin-2 (AQP2) mRNA in rats with adriamycin-induced nephrotic syndrome. Effects of Chinese herb Astragalus membranaceus (AM) were also tested. ⋯ The up-regulated mRNA expressions of hypothalamic AVP, renal V2 receptor and AQP2 might play a role in edema formation in adriamycin-induced nephrotic rats. AM exerts its therapeutical effects on nephrosis partially through this mechanism.