Constriction, Pathologic ; diagnosis ; pathology ; therapy ; Humans ; Palate, Soft ; pathology ; Sleep Apnea, Obstructive ; diagnosis ; pathology ; therapy ; Tongue ; pathology ; Uvula ; pathology

Objective: To optimize the extraction processes used for enzymatic hydrolysis of total sugar from Cynomorii Herba (Cynomoriumsongaricum) by employed quadratic orthogonal rotation regression combination design. Methods: Taking the extraction rate of total sugar as index, as well as enzyme ratio, enzyme concentration, extraction temperature, extraction time, and initial pH value as investigation factors to screen out main factors. The quadratic orthogonal rotation regression combination design was applied to optimize the process. And then, to employ response surface analysis method (RSM) for evaluating the impacts on the response values of the single factor effect and interaction effect of each factor level. Results: The optimum conditions were as follows: enzyme concentration was 1% (wt% of Cynomorii Herba powder), initial enzyme solution pH was 5.5, extraction temperature was 55℃, extraction time was 45 min, and pectinase and cellulose was 1∶1 proportion. The extraction yield of total sugar was (17.54 ± 0.35) %. The influence of response values of each factor presented the relationship of the parabolic surface with the opening downward. The results showed that the impact degree on total sugar yield of Cynomorii Herba were extraction temperature, extraction time, and enzyme ratio, respectively. Conclusion: This method is a simple and effective method to increase the extraction yield of total sugar from Cynomorii Herba. Quadratic orthogonal rotation regression combination design has a favourable predictability.

Objective To investigate the effect of triiodothyronine (T3) on neurogenesis in after bilateral common carotid artery occlusion in adult rats. Methods Fifteen adult male Sprague-Dawley (SD) rats were randomly divided into sham operation, 2-vessel occlusion (2VO) and T3 intervention groups (n = 5 in each group ). A chronic cerebral ischemia model was established by the bilateral common carotid artery permanent ligation. Seven days after modeling 5-bromo-2'-deoxyuridine (BrdU) was injectied intraperitoneally and the new proliferating cells were labeled. The BrdU positive cells in SVZ were observed using immunofluorescence staining.Results The numbers of BrdU positive cells in the sham operation, 2VO, and T3 intervention groups were 174. 8 ± 18. 5, 325.0 ± 51.0, and 499. 4 ± 30. 8, respectively. There were significant differences among all the groups (F = 101.68, P ＜ 0. 001 ). The numbers of BrdU positive cells in the T3 intervention group were significantly higher than those in the 2VO and sham operation groups (all P ＜0. 001 ). The numbers of BrdU positive cells in the 2VO group were also significantly higher than those in the sham operation group (p ＜0. 001). Conclusions Thyroid hormones may promote neural progenitor cell proliferation in SVZ in adult 2VO rats.

Objective To investigate the prevalence of depression and its influencing factors in type 2 diabetes mellitus (T2DM)patients with long-term treatment of insulin pumps.Methods A total of 120 T2DM patients receiving long-term insulin pump treatment were enrolled,and 180 T2DM patients who received intensive insulin injection without pump in the same period were enrolled as controls.We assessed the depression in the two groups using Zung’s self rating scale.Results The depression scores of 32 patients with insulin pump were more than 0.50,and the depression prevalence of these patients was 26.67%,which was significantly lower than 48.89% in the control group (P < 0.05 ). The prevalence of moderate or severe depression was 3.33% and 1.67%, respectively,in the insulin pump group,which were considerably lower than the prevalence of 1 5.56% and 9.44%in the control group (P <0.05).Duration of DM and the number of complications might be independent risk factors of depression in DM patients with insulin pump.Conclusion Long-term use of insulin pump may effectively improve depressive state in T2DM patients through its optimal effect on maintaining blood glucose levels.

Purpose There is no agreement for contrast enhanced ultrasound (CEUS) in differential diagnosis of benign and malignant thyroid nodules. This paper aims to evaluate the diagnostic value of the conventional and contrast-enhanced ultrasonography in the diagnosis of thyroid nodule by meta analysis. Materials and Methods Literature search was performed in PubMed, CNKI and Wanfang databases to identify relevant English and Chinese literatures by using pathological results as the gold standard from January 1990 to September 2014. The quality of each selected study was evaluated by QUADAS. The pooled weighted sensitivity, specificity and the corresponding 95% CI were calculated. Summary receiver operating characteristic curves (SROC), area under curve (AUC) and the Q* index were also calculated. Results A total of 14 literatures (1970 nodules) were included, the pooled weighted sensitivity and specificity of conventional ultrasonography were 0.74 and 0.70; those of contrast-enhanced ultrasonography were 0.86 and 0.82. The AUC by using the two methods were 0.84 and 0.93, respectively, and the Q* index were 0.77 and 0.86, respectively. Conclusion In the diagnosis of thyroid nodule, the accuracy of contrast-enhanced ultrasonography is better than conventional ultrasound; however, both of them have high clinical value in the diagnosis of thyroid nodule, thus they are helpful in avoidance of unnecessary surgical treatment in patients with thyroid disease.

Objective:To explore the effects of wild type p53 gene on biologic behavior of human ovarian cancer cell line SKOV 3 and the efficacy of cisplatin against the cancer cells when combined with p53 gene therapy.Methods:A human wild type p53 gene recombinant eukaryotic expression vector was introduced by lipofectin mediated gene transfection into SKOV 3 cells which does not express endogenous p53.The clones obtained were observed for their biological behavior and the colony formation when exposed to cisplatin.Results:The exogenous wild type p53 gene expressed stably in the cells.The growth rate and colony formation of these transfected cells were suppressed significantly by exogenous p53 gene and the percentage of phase G 1 cells increased.There was an increasement in the sensitivity to cisplatin of the transfected cells.Conclusion:Exogenous wild type p53 gene can suppress the growth of human ovarian cancer cells and increase the efficacy of cisplatin against the cells.

Objective: To study the chemical constituents of Swertia mussotii. Methods: Various chromatographic methods were employed to isolate the compounds and their structures were established by spectroscopic analysis. Results: Nineteen compounds were isolated from 75% ethanol extract of S. mussotii and identified as 1-hydroxyl-3, 4, 7, 8-tetramethoxyxanthone (1), 1, 7- dihydroxyl-3-methoxyxanthone (2), 1, 3, 7-trihydroxyxanthone (3), 1, 3, 7, 8-tetrahydroxyxanthone (4), 1, 3, 8-trihydroxyl-7- methoxyxanthone (5), 1, 3-dihyfroxyl-7, 8-dimethoxyxanthone (6), 1, 5, 8-trihydroxyl-3, 4-dimethoxyxanthone (7), 1-hydroxyl-3, 4, 5, 8-tetramethoxyxanthone (8), 1-hydroxyl-3, 5, 8-trimethoxyxanthone (9), (S)-(+)-gentiolactone (10a), (R)-(-)-gentiolactone (10b), 1, 8-dihydroxyl-3, 7-dimethoxyxanthone (11), 1-hydroxyl-3, 7, 8-trimethoxyxanthone (12), 1, 7-dihydroxyl-3, 8-dimethoxyxanthone (13), 1, 7, 8-trihydroxyl-3-methoxyxanthone (14), 1, 3, 5, 8-tetrahydroxyxanthone (15), 1, 7-dihydroxyl-3, 4, 8-trimethoxyxanthone (16), mangiferin (17), and oleanolic acid (18), respectively. Conclusion: Compounds 1-9 are firstly isolated from S. mussotii. Compounds 10a and 10b are firstly isolated from the plants in Swertia L.

Indoleamine 2,3-dioxygenase 1 (IDO1) is the rate-limiting enzyme in the degradation of tryptophan to kynurenine. IDO1 is highly expressed in some tumor tissues. IDO1 can deplete tryptophan in tumor microenvironment, inhibit T cell function, and mediate the immune escape of tumor cells. Thus, IDO1 is considered a potential target of tumor immunotherapy. Currently, there are several IDO1 inhibitors in clinical research studies. The mechanism of IDO1-mediated tumor immune escape and the structure of IDO1 inhibitors are summarized in this review.

Objective:To translate the Anticoagulation Knowledge Tool(AKT) into Chinese,and to test its reliability and validity in patients with atrial fibrillation.Methods:After obtaining the authorization of the original author, the Brislin cross-cultural translation method was used to translate from the original, back translate and cross-cultural adaptation of AKT to form the Chinese version of AKT. The reliability and validity were tested in 147 patients with atrial fibrillation from January to June in 2020 in Ruijin Hospital, Shanghai Jiaotong University School of Medicine.Results:The Chinese version retained 20 items of the original questionnaire,with the item content validity index of 0.857-1.000 and the average scale content validity index of 0.85. The Cronbach alpha coefficient was 0.812 and test-retest coefficient was 0.781.Conclusions:The Chinese version of AKT has been proved to be valid and reliable, which can be used to assess anticoagulation knowledge of patients with atrial fibrillation.

Objective To evaluate the value of ultrasound in diagnosing shoulder lesions.Methods Ultrasound images were obtained by two museuloskeletal sonologists in 111 patients suspected of having rotator cuff and non-rotator cuff lesions which were confirmed by following arthroscopic surgery.Results The arthroscopic findings demonstrated that there were two or more lesions in one patient in majority of patients,included 67 supraspinous tendon tears,5 infraspinous or subscapular tendon injuries,10 calcific tendonosis,2suprascapular notch cysts,34 subaeromial bursitis,1 intrabursa loose body,13 biceps longus tendon dislocation or disruption,and 21 lahrum injury.The accuracy of ultrasonogrpahy was 92% in diagnosis of supraspinous tendons tear,97% in subscapular tendon inj uries,96% in calcific tendonitis,1 00% in suprascapular notch cysts,88% in subacromial bursitis,100% in biceps longus tendon dislocation or disruption,and 81% in labrum injury.Conclusions Ultrasound can evaluate shoulder lesions effectively.