Objective:To obtain the stem cells in different pancreatic islets purity utilizing free-serum culture medium and investigate the PDX-1 mRNA expression distinction before and after transdifferentiation culture.Methods:Pancreatic islets of male SD rats(islet donors)were isolated by injection of collagenase into pancreatic ducts,and maintained in serum Ham's F-10 for 36h.Then the cells were kept in free-serum Ham's F-10 for 14 days.The last stage was to shift culture media from free-serum Ham's F-10 to free-serum DMEM/F12 that contained KGF,BSA,glucose and ITS.On the 28d,Dithizon was added into the culture flask for observation of 3D cell.The PDX-1 positive cells was investigated by immunocytochemistry.Results:After transdifferentiation culture,some 3D cells were red.The pdx-1 was remarkable in cell nucleus.Conclusion:After transdifferentiation culture,some pancreatic stem cell display the character of islet cell.The daughter cells of pancreatic stem cells have character of stem cells after transdifferentiation.KGF may have effect on promoting the expression of PDX-1.

PBL teaching method can cultivate students’ ability to analyze the existing problems, find out more problems and resolve the problems finally, and it is important to improve students’ comprehensive quality. The experimental teaching innovation of Histology and Embryology is summarized in this article, which turned induction, practice and examination, the three stages of experimental teaching into" Problem-Based learning", thus making the teaching effect much better.

The construction ofteachingteamin institutes is an effective wayfor organizingthe basic teaching constitution and improving teaching quality.We obtained the excellent teaching team of Chongqing in 2008.Our practice and thinking will be introduced in this paper,so as to provide the reference for teaching team construction in institutes.

Objective To investigate the vulvaginal candidiasis(VVC)incidence in pregnant women,identify the candida species and analyze the drug resistance of isolated strains.Methods Candida isolation,sample cultivation,species identification and drug susceptibility test were performed for VVC patients.Seven hundred and forty-five samples were collected.Results The incidence of VVC was 10.20%,and the recurrence of VVC was 18.5%.The proportion of C.albicans,C.glabrata,C.krusei,C.tropicalis and other candida were 80.26%,8.95%,3.95%,1.32% and 6.58% respectively.C.albicans was susceptible to amphotericin and 5-flucytosine,the susceptibility for fluconzazole,itroconazole and voriconazole were 7.89%,6.58% and 9.21% respectively.C.gla-brata,C.krusei,C.tropicalis,and other candida were susceptible to those antifungal drugs.Conclusion VVC was an usual infection among pregnant women,C.albicans was the major species,followed by C.glabrata.The resistance of amphotericin and 5-flucytosine were lower,the Candida were resistant to fluconzazole,itroconazole and voriconazole in certain extent.

Acromegaly is a commonly functional pituitary tumor. Standardized managements are crucial for the patients. Chinese Expert Consensus on the Diagnosis and Treatment of Acromegaly(2020) has been updated in 2020 based upon latest advance. This essential introduction about genetic causes would further guide and standardize the management of acromegaly.

BACKGROUND: It has been found that hypoxia inducible 1α (HIF1α) gene can improve the ability of tissues and cells to survive in the ischemic environment, which is of great significance in promoting blood vessel regeneration.OBJECTIVE: To investigate the effect of the recombinant adenovirus Ad-CMV-HIF1αmu-IRES-hrGFP-1 on the proliferation of bone marrow mesenchymal stem cells.METHODS: Passage 3 bone marrow mesenchymal stem cells were cultured and transfected with Ad-CMV-HIF1αmu-IRES-hrGFP-1 virus (experimental group), with non-mutated gene Ad-CMV-HIF1α-IRES-hrGFP (positive control group), with Ad-CMV-IRES-hrGFP-1 empty virus (negative control group), or with no virus solution (blank control group). After transfection for 24 hours, the expression of HIF1α mRNA and protein was detected. Cell proliferation was detected by MTT assay at 24, 48, 72, 96 and 120 hours after transfection.RESULTS AND CONCLUSION: (1) Except that the mRNA expression of HIF1α in the experimental group and the positive control group was significantly higher than that in the negative control group and the blank control group (P < 0.05), there was no significant difference between two groups. (2) The expression of HIF1α protein in the experimental group was significantly higher than that in the positive control group, the negative control group and the blank control group (P < 0.05), and there was no significant difference between the latter three groups. (3) Cell proliferation was faster in the experimental group than the positive control group and the blank control group (P < 0.05), and moreover, there was no significant difference between the latter two groups. Our experimental findings indicate that the recombinant adenovirus-mediated three-point mutant HIF1α combined with hrGFP gene transfected bone marrow mesenchymal stem cells could not only express the target protein, HIF1α, under normoxic conditions, but also promote the proliferation of bone marrow mesenchymal stem cells.

Objective To observe the effect on serum inflammatory factors and immune function of Shiwei Longdanhua particles in elderly patients with acute bronchitis.Methods 120 cases of elderly patients with acute bronchitis from November 2014 to October 2016 were selected and randomly divided into the observation group and the control group with 60 cases in each group, according the order of single and double number.The control group was given conventional treatment, and the observation group was given Shiwei Longdanhua particles based on the control group.Treatment for seven days, to observe the differences of serum inflammatory factors (hs-CRP, TNF-αand IL-6, IL-1) and immunologic function indexes (CD3 +, CD4 +, CD8 +, CD4 +/CD8 +and IgM, IgG, IgA) between the two groups.Results After treatment, hs-CRP, TNF-αand IL-6, IL-1 of the two groups decreased with before treatment, the difference was statistically significant (P<0.05), and all indexes of the observation group were lower than those of the control group, the difference was statistically significant ( P<0.05 ) .After treatment, CD3 +, CD4 +, CD4 +/CD8 + of the two groups increased with before treatment except CD8 +decreased, the difference was statistically significant (P<0.05), there was no significant difference between the control group and before treatment, there was significant difference between the two groups after treatment (P<0.05).After treatment, IgM, IgG and IgA of the two groups decreased with before treatment, the difference was statistically significant (P<0.05), and all indexes of the observation group were lower than those of the control group, with significant differences, the difference was statistically significant (P<0.05).Conclusion Shiwei Longdanhua particles has the effects of inhibiting inflammatory reaction and improving the immune status in the treatment of elderly patients with acute bronchitis .

In view of the possibility for serious adverse outcomes for mother and fetus associated with maternal thyroid dysfunctions during pregnancy,many experts have recommended conducting routine thyroid function screening in pregnancy,but guidelines from different academic communities have given varied recommendations.The aim of this review is to discuss the significance of thyroid function screening in pregnancy and evaluate efficiency of the case-finding strategy vs.the universal screening strategy.

Objective To study the effect of different insulin administration methods on glucose control of gestational diabetes mellitus ( GDM) .Methods Sixty-four cases with GDM were randomly divided into observation group and control group.The observation group received continuous subcutaneous insulin infusion insulin pump therapy, the control group received multiple subcutaneous insulin therapy.Then,the glucose control effect,SAS and SDS score were compared between two groups.Results After 4 weeks,the FBG,HbA1c,2h PG of observation group were significantly lower than the control group[(5.89 ±0.66)mmol/L vs (7.13 ±0.74)mmol/L,(7.14 ±0.82)% vs (8.92 ±0.95)%,(8.87 ±0.92)mmol/L vs (10.13 ±1.32)mmol/L](t=7.074,4.430,8.024,all P<0.05). The glucose fluctuations,insulin amount,hypoglycemia incidence of the observation group were significantly lower than the control group,blood sugar standard time was shorter than the control group[(5.64 ±0.65)mmol/L vs (8.44 ± 0.92)mmol/L,(0.52 ±0.06)U· kg-1· d-1 vs (0.73 ±0.09)U· kg-1· d-1,6.25% vs 28.13%,(4.76 ± 0.55)d vs (7.41 ±0.94)d,t/χ2 =14.061,10.983,5.379,13.764,all P<0.05)];SAS score,SDS score of the observation group were significantly lower than the control group[(34.95 ±4.2) points vs (40.23 ±3.98) points, (35.12 ±3.95)points vs (38.36 ±3.88)points,t=5.162,3.310,all P<0.05)].Conclusion Continuous subcu-taneous insulin infusion insulin pump therapy is helpful to control glucose levels,reduce blood sugar fluctuations and mitigate negative sentiment during treatment,it is an ideal insulin administration method for the treatment of GDM.

It is very difficult to operate the patients with malignant neoplasms combined with superior vena cava syndrome because of SVC has a special place.And it's prognosis is not good. Now we will use some relative articles to draw a synoptic conclusion in the indications ,surgical skills, and curative effects of this operation.