In the current study, 5-nydroxytryptamine （5-HT） and gastrin （GAS） cells in the digestive canals of Rana chensinensis tadpoles at different developmental stages were investigated by immunohistochemistry. Results s...In the current study, 5-nydroxytryptamine （5-HT） and gastrin （GAS） cells in the digestive canals of Rana chensinensis tadpoles at different developmental stages were investigated by immunohistochemistry. Results showed that the 5-HT cells were only detected in the duodenum before metamorphosis began, and were extensively distributed in the stomach, duodenum, small intestine, and rectum thereafter, with the highest counts found in the duodenum and rectum when metamorphosis was completed. The GAS cells were only distributed in the stomach and duodenum, and only rarely detected in the duodenum before metamorphosis began, but increased in the stomach during metamorphosis and showed zonal distribution in the gastric mucosa when metamorphosis was completed. Metamorphosis is a critical period for amphibians, during which structural and functional physiological adaptations are required to transition from aquatic to terrestrial environments. During metamorphosis, the differentiations of 5-HT cells in the gastrointestinal canals of tadpoles could facilitate mucus secretion regulation, improve digestive canal lubrication, and help water- shortage food digestion in terrestrial environments. Conversely, GAS cell differentiations during metamorphosis might contribute to the digestive and absorptive function transition from herbivore to omnivore.展开更多
In the present paper, the therapeutic effect of acupuncture in treatment of 42 cases of epigastralgia was observed using multiple objective indexes, including electrogastrogram (EGG), output of gastric acid and pepsas...In the present paper, the therapeutic effect of acupuncture in treatment of 42 cases of epigastralgia was observed using multiple objective indexes, including electrogastrogram (EGG), output of gastric acid and pepsase, plasma prostaglandin (PG) E and gastrin contents, the number and morphological structure of gastrin (G) cells of the antrum mucosa. These 42 cases included 18 cases of deficiency syndrome type, 13 excess syndrome type and 11 mixed type of deficiency and excess. Zhongwan (CV 12), Neiguan (PC 6) and Zusanli (ST 36) were punctured combined with other acupoints according to syndrome patterns. After treatment, 32 cases (76.19%) were cured, 6(14.29%) had remarkable improvement and 4 (9.52%) had improvement, with a cure plus markedly effective rate of 90.48%. Gastroscopic and EGG examination suggested that the function and structure of the stomach returned to normal after acupuncture. In addition, acupuncture stimulation had a bi directional regulative action on gastric acid secretion, gastrin content, EGG activity, etc. Conclusion: Acupuncture treatment has a good regulative action on gastric function and structure in epigastralgia patients.展开更多
基金This study was supported by the Natural Science Foundation of Shaanxi Province （SJ08C101） and the Fundamental Research Funds for the Central Universities （GK200902039）.
文摘In the current study, 5-nydroxytryptamine （5-HT） and gastrin （GAS） cells in the digestive canals of Rana chensinensis tadpoles at different developmental stages were investigated by immunohistochemistry. Results showed that the 5-HT cells were only detected in the duodenum before metamorphosis began, and were extensively distributed in the stomach, duodenum, small intestine, and rectum thereafter, with the highest counts found in the duodenum and rectum when metamorphosis was completed. The GAS cells were only distributed in the stomach and duodenum, and only rarely detected in the duodenum before metamorphosis began, but increased in the stomach during metamorphosis and showed zonal distribution in the gastric mucosa when metamorphosis was completed. Metamorphosis is a critical period for amphibians, during which structural and functional physiological adaptations are required to transition from aquatic to terrestrial environments. During metamorphosis, the differentiations of 5-HT cells in the gastrointestinal canals of tadpoles could facilitate mucus secretion regulation, improve digestive canal lubrication, and help water- shortage food digestion in terrestrial environments. Conversely, GAS cell differentiations during metamorphosis might contribute to the digestive and absorptive function transition from herbivore to omnivore.
文摘In the present paper, the therapeutic effect of acupuncture in treatment of 42 cases of epigastralgia was observed using multiple objective indexes, including electrogastrogram (EGG), output of gastric acid and pepsase, plasma prostaglandin (PG) E and gastrin contents, the number and morphological structure of gastrin (G) cells of the antrum mucosa. These 42 cases included 18 cases of deficiency syndrome type, 13 excess syndrome type and 11 mixed type of deficiency and excess. Zhongwan (CV 12), Neiguan (PC 6) and Zusanli (ST 36) were punctured combined with other acupoints according to syndrome patterns. After treatment, 32 cases (76.19%) were cured, 6(14.29%) had remarkable improvement and 4 (9.52%) had improvement, with a cure plus markedly effective rate of 90.48%. Gastroscopic and EGG examination suggested that the function and structure of the stomach returned to normal after acupuncture. In addition, acupuncture stimulation had a bi directional regulative action on gastric acid secretion, gastrin content, EGG activity, etc. Conclusion: Acupuncture treatment has a good regulative action on gastric function and structure in epigastralgia patients.
