Progress in Study on Diagnosis of Early Gastric Cancer / 胃肠病学

Early gastric cancer is the gastric cancer limited to mucosa or submucosa no matter there is lymph node metastasis or not,and its prognosis is relatively good. China is the high morbidity area of gastric cancer,most patients with gastric cancer are diagnosed at an advanced stage losing the chance of operation and the survival rate is low. Therefore, early diagnosis and treatment is crucial for improving the survival rate of patients with gastric cancer. This article reviewed the progress in study on diagnosis of early gastric cancer from the following aspects:serology,imaging,endoscopy and genetics.

Adenylate cyclase stimulation and ocular hypertension inhibition by forskolin analogs / 中华实验眼科杂志

ObjectiveForskolin （FSK） analogs，isoforskolin （isoF），deacetylforskolin（deaF），and 1-acetylforskolin（1-aF），extracted from Coleus forskohlii native to Yunnan，were assayed for their adenylate cyclase stimulating activities in vitro and for effects of two analogs on ocular hypertension （OHT） in water-loaded rabbits．MethodsAdenylate cyclase stimulation was determined by protein-binding method of radioimmunoassay，and intraocular pressure was monitored by pneumatonometer．ResultsIt showed that isoforskolin and forskolin stimulated adenylate cyclase in vitro with almost equal activity，deacetylforskolin with milder activity，and 1-acetylforskolin with little activity in vitro．1％ deaF and 1-aF suppressed rabbit OHT induced by water-loading for at least 3h，with the maximal inhibitory rates of 6.0，10.9% respectively．ConclusionThis study suggests that two foskolin analogs （isoforskolin，deacetylforskolin） possess adenylate cyclase stimulation activities in vitro；deacetylforskolin and 1-acetylforskolin suppress OHT induced by water-loading in rabbits．