Hyperhomocysteinemia is one of the independent risk factors of cerebrovascular diseases. Methylenetetrahydrofolate reductase (MTHFR) C677T gene mutation often results in the increase of plasma homocysteine levels, but the relationship between the genetic polymorphism of MTHFR and cerebrovascular diseases is not significant.

Objective To study the effects of various media, salt intensity, and organic components on the growth of Salvia miltiorrhiza adventitious roots and the synthesis of tanshinone ⅡA and protoca-techuic aldehyde. MethodsThe adventitious roots were obtained through tissue culture by manipulation of various media, salt intensity, and organic components and the contents of tanshinone ⅡA and protocatechuic aldehyde were determined by HPLC. ResultsThe effect of media MS, LS, B5, White, and SH on adventitious roots of S. miltiorrhiza was observed. Adventitious roots grew better under high salt intensity while secondary metabolite biosynthesis was accelerated under low salt intensity in MS basal medium.The reciprocity of five organic components had significant effect on root growth; glycin favored the synthesis of tanshinone ⅡA; scarcity of one of inosital, glycin, VB1, and VB6 inhibited the synthesis of protocatechuic aldehyde. ConclusionMS Basal medium is used for adventitious root culture. The results show that salt intensity and organic components have significant effects on adventitious root culture of S. miltiorrhiza and secondary melabolite synthesis.

Objective To study the effects of carbon, nitrogen, and phosphate sources on the growth of Salvia miltiorrhiza adventitious roots and the contents of tanshinone ⅡA and protocatechuic aldehyde. Methods The adventitious roots were obtained through tissue culture by manipulation of carbon, nitrogen, and phosphate sources and the contents of tanshinone ⅡA and protocatechuic aldehyde were determined by HPLC. Results Carbon, nitrogen, and phosphate sources were necessary for the culture of S. miltiorrhiza adventitious roots. The highest times of root multiplication were achieved at sucrose level of 30 g/L after 20 d culture, 60 g/L sucrose and low level sucrose were favorable for biosyntheses of tanshinone ⅡA and protocatechuic aldehyde, respectively. The highest root yield and tanshinone ⅡA content on day 25 were obtained by intermittent sugar adding during cultivation, and the production of adventitious roots and tanshinone ⅡA were 2.3-and 2.4-fold compared with those of control, respectively. The maximum root growth rate, contents of tanshinone ⅡA and protocatechuic aldehyde were achieved while NH4+-NO3-was 1∶4, 1∶4, and 1∶1, respectively when concentration of total nitrogen source was kept at 60 mmol/L. To compare with the control group, changing of KH2PO4 concentration could favor for the adventilious root growth, but high KH2PO4 concentration inhibited tanshinone ⅡA biosynthesis. ConclusionThe results show that various carbon, nitrogen, and phosphate sources have the significant effects on adventitious root culture of S. miltiorrhiza. The best carbon source and its concentration, nitrogen and phosphate sources for the growth of S. miltiorrhiza adventitious root and the synthesis of secondary metabolite are confirmed.

Objective To explore the related factors for improving the effect of the staged bilateral multi-targets pallidotomy and thalamotomy on Parkinson's disease.Methods 387 patients were divided into different groups according to various factors,including the age of patient,operation method,interval of radiofrequency and the diameter of electrode. The relationship between the above mentioned factors and the effect or complication was analyzed.Results All the symptoms of PD were significantly improved after second operation in the near future. Staged bilateral pallidotomy was the most popular operation way in clinical practicing. The incidence of complication of staged bilateral thalamotomy was high (100%). The rate of complication in the patients over 55 years old (29.70%) was higher than that in the patients not more than 55 years old (12.66%)( P

Denture stomatitis is one of the most common problems appearing after patients wearing removable dentures,which appears more frequently in maxillary complete dentures. The clinical symptom is that the mucosa of the stress-bearing area of denture base broadly gets red,and forms the boundary diffusion erythema. Sometimes when the surface of denture base and the mucosa of stress-bearing area are not close well,some granules will be found at the surface of the erythema. With the world's gradually stepping into the aging society,the number of people who have to wear removable dentures is increasing,because dentition defect or edentulous affected by any reasons. As a result,how to solve the secondary disease such as denture stomatitis is becoming a hot spot which more and more researchers concern about. This paper summaries the development of prevention of denture stomatitis in prosthetic area via selection of base materials,manufacture of denture,sterilization of denture,and improvement of base.

Objective To investigate the role of FHIT in NSCLC and the relativity between FHIT and cigarette.Methods 81 cases of NSCLC and 7 cases of the nomal lung tisses were examined for FHIT by immunochemical(S-P).Results The postive expression rates of FHIT were significantly lower than those in nomal lung tisses(P

Objective To investigate the effect of Xuesetong Dripping Pills combined with alprostadil intervention on serum brain natriuretic peptide in elderly patients with chronic congestive heart failure.Methods In 74 patients with chronic congestive heart failure, were randomly divided into observation group and control group, 37 cases in each group.Control group received conventional method.The observation group received Xuesetong Dripping Pills combined with alprostadil on the basis of conventional therapy.Compared the efficacy, the heart function level, walking test and level of serum brain natriuretic peptide between two groups after 15 days’ treatment.Results The total efficiency of observation group was 94.59%, which was higher than 75.68% in the control group, the difference was statistically significant(P<0.05).After treatment, the heart function level improvement in the observation group was better than the control group, the difference was statistically significant(P<0.05).After treatment, 6 min walking test in the observation group(316.4 ±20.7) m, was better than the control group(303.5 ±28.1) m, the difference was statistically significant(P<0.05).The level of serum brain natriuretic peptide in the observation group(608.9 ±158.1)ng/L, was lower than that of the control group(792.7 ±179.4) ng/L, the difference was statistically significant ( P <0.05 ) .Conclusion Xuesetong Dripping Pills combined with alprostadil has good curative effect in the treatment of chronic congestive heart failure,can relieve the abnormal increase of serum brain natriuretic peptide, improve blood circulation and heart function.

With the development of life science and medical technology,myocardial fibrosis is being increasingly recognized as a new therapeutic target for heart diseases.However,traditional methods for detection of myocardial fibrosis,such as myocardial biopsy and laboratory assay of serum metabolites or enzymes,are not satisfactory in meeting the clinical demands because of their intrinsic limitations.Molecular imaging may non-invasively and quantitatively evaluate the presence/absence,degree and turnover of myocardial fibrosis in vivo with good specificity,thus being useful for clinical assessment and intervention.Currently,the commonly used molecular imaging modalities for evaluation of myocardial fibrosis include SPECT,PET and MRI.It is hopeful that the molecular probe for targeted ultrasound technology may also be developed in the near future.This review highlights the current status and future trends of molecular imaging in myocardial fibrosis.

Objective To evaluate the diagnostic value and clinical significance of preoperative staging in gastric cancer with induced pneumoperitoneum in spiral CT (SCTPP). Methods Both routine SCT and SCTPP were performed in 52 lean patients suffered from gastric cancers, and comparison was made between SCT findings and surgical and histopathologic findings. Results The accuracy of routine SCT and SCTPP in determining the T-staging was 72% and 96%, respectively (?2=8.0, P0.05). The sensitivity in determining M-staging was 61% and 100%, respectively (?2=0.04, P

Objective The effects of free fatty acid on leptin receptor in rat islet cells were investigated. Methods Islet cells of newborn sprague Dawley rats were incubated with palmitate acid (0 25mmol/L) or oleic acid (0 125mmol/L) for 12 hours, 24 hours and 36 hours respectively. Western blotting was used to assess the protein content of leptin receptor in rat islet cells. The RNA expression level of leptin receptor was assayed by RT PCR. Tyrosine phospholation of leptin receptor was determined by method of immuno precipitation. Results The protein content of leptin receptor in rat islet cells was significantly decreased after being incubated with free fatty acids for 24 and 36 hours compared with the control ( P