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[Objective] To sum up professor SUN Zhiguang's experiences in the treatment of overlap syndrome in gastro-esophageal reflux disease and irritable bowel syndrome.[Method] Expound the academic perspective and clinical experience of Professor SUN Zhiguang in the treatment of this overlap syndrome from the etiology and pathogenesis,therapeutic principle and method,differential diagnosis and treatment,administer medical herbs and prescription,and one case.[Result] Professor SUN considers that exogenous and internal injuries are causes of GERD overlapping IBS,leading to spleen deficientcy and the liver depression.He points out that "incoordination between liver and spleen,disturbance of qi" is the basic pathogenesis of this disease.According to holistic concept,it should be treated by the principle of harmonizing liver and spleen,regulating qi,simultaneously treating stomach and bowl.It is divided into two types,depressing qi is important in the constipation-predominant,and regulating heat and cold is significant in the diarrheapredominant.[Conclusion] Professor SUN specializes in the treatment of the GERD overlapping IBS.This clinical experience has clinical significance.
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@#To study the effects of quercetin(Que)on the electric current of Nav1. 8(INav1. 8)in rat dorsal root ganglion(DRG)neurons, dose-effect relationship of Que on INav1. 8 and the activation and inactivation properties of voltage-dependent Nav1. 8 influenced by Que were studied by using the whole-cell patch clamp technique in fresh isolated rat DRG neurons. It was found that diffeent concerntrations of Que(10, 30, 100 μmol/L)could inhibit INav1. 8 peak value of DRG neurons in concentration-dependent manner. The inhibition of peak currents were(15. 32±3. 43)%, (22. 92±8. 24)% and(47. 29±11. 42)% respectively, the IC50 was 121. 38 μmol/L and the Hill coefficient was 0. 76. In the existence of Que(100 μmol/L), the activation curve of Nav1. 8 channel in DRG was slightly shifted to depolarizing direction for 0. 83 mV, and the inactivation curve was shifted to hyperpolarizing direction for 1. 86 mV. Compared with the stage before intervention, the half-activation voltage(V1/2=-40. 23±0. 25 mV)was significantly different(P< 0. 01). In conclusion, Que inhibits the Nav1. 8 channel activity in dose and voltage-dependent manner, which may count for the reduction of algesthesia transmission and the alleviation of chronic visceral pain.
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Traditional 2D cell culture technology is widely used in cell culture field, but it lacks the formation of 3D matrix scaffold and lacks specific cytokines in vivo.Cells in 3D cell culture system are similar to cells in vivo for gene expression and cell activity. The article focuses on the application of three-dimensional cell culture technology in cancer research, including the construction of tumor microenvironment,tumor biological behavior, tumor angiogenesis, drug resistance and so on and provides a reference for cancer research workers.
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Objective To compare the influence of endoscopic thyroidectomy via breast areola approach and traditional thyroidectomy on the immune function.Methods Fifty cases undergoing partial thyroidectomy were divided into endoscopy and open thyroidectomy groups(25 cases in each).Blood samples were obtained at 1 day before the surgery and 1,2,and 3 days postoperation to count the CD3,CD+4 and CD+8 T lymphocytes using flow cytometry,and determine the concentration of immunoglobulins(IgG,IgA,and IgM),CRP,and complements(C3 and C4)with immunonephelometry.Results In both the groups,the concentrations of CD3,CD+8 T lymphocytes,and complement C4 decreased significantly at 24 hours after the surgery(P0.05).Conclusions Both endoscopic and traditional thyroidectomy could depress the immune function,however no significant difference exists between the two methods in the level of depression.
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Jinyingzi is the dry ripe fruit of Rosa leav gata Michx.. It contains mainly tannic acid, malic acid, citric acid, vitamin C and saponins. Its effect on urinary sy stem was studied on mouse Pollakiuria model by severing hypogastric nerve. Results showed that the water extract of R. laevigata can decrease the frequency and prolong the interval of urination and increase the quantity of eacn urination. The said extract can inhibit the automatic contraction of isolated rabbit jejunal smooth muscle and antagonize the spasmodic contraction arouscd by acetylcholine and barium chloride of isolated rabbit jejunal smoothmusele, and isolated vesical smooth muscle of mouse, and antagonize reaction of contractility aroused by noradrenalin on isolated thoracic aorta strips of rabbit. All of the the three inhibitions of smooth muscle contraction showed signicant dose-response curve.
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AIM To observed the effect of procyanidins on DNA damage induced by carcinogen or hydroxyl radical (OH?),and inhibitory effect on topoisomerase. METHODS Using labeled TdR uptake assay and single cell gel electrophonesis. Topoisomerase was extracted from B16F10 cell lines, used agarose gel electrophoresis assay. RESULTS It was showed that hydroxyl radical (OH?) or different doses of MNNG can induce severe DNA damage of L 929 cell lines. Procyanidins can alleviate the damage induced by MNNG or OH?. It shows certain dose dependent effect relationship . But there is no significant inhibitory against Topo Ⅱ activity by procyanidins even at a dose of 50 ?mol?L -1 . CONCLUSION Procyanidins from grapes seeds can protect DNA damage,but not inhibit topoisomerase activity. This is one of cancer chemoprevention mechanism of Procyanidins.
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AIM To study the anti oxidation and cancer chemoprevention mechanism of procyanidins extracted from Vitis vinifera. METHODS A simple colorimetric method is used for the measurement of H 2O 2 produced by PMNs induced by croton oil. RESULTS It was shown that procyanidins could inhibit PMNs releasing H 2O 2 induced by croton oil. Procyanidins serum of rats also had the same effect. The effect was time and dose dependent. Inhibitory effect of procyanidins on hepatic mitochondria lipid peroxidation induced by croton oil was also observed. Procyanidins could raise the activity of SOD and decrease the level of MDA. CONCLUSION It was concluded that anti oxidation effect of procyanidins was one important mechanism of cancer chemoprevention.