Effect of Modified Shiquan Dabutang on Inflammatory and Bone Metabolism Indexes in Elderly Patients with Osteoporotic Intertrochanteric Fractures Due to Qi and Blood Deficiency / 中国实验方剂学杂志

Objective:To explore the application value of modified Shiquan Dabutang in the treatment of elderly patients with osteoporotic intertrochanteric fractures （OIFs） due to Qi and blood deficiency by observing its impacts on inflammatory and bone metabolism indexes. Method:Ninety-eight elderly patients admitted to our hospital for OIFs of Qi and blood deficiency syndrome from April 2018 to April 2020 were randomized into an observation group （<italic>n</italic>=49） and a control group （<italic>n</italic>=49）. Following the proximal femoral nail antirotation （PFNA） fixation， patients in the control group were treated with Guipiwan， while those in the observation group received the modified Shiquan Dabutang. The clinical efficacy， inflammatory and bone metabolism indexes， and complications were compared between the two groups after four weeks of treatment. Result:The levels of such serum indexes as fibroblast growth factor-2 （FGF-2）， osteoprotegerin （OPG）， transforming growth factor-<italic>β</italic>₁ （TGF-<italic>β</italic>₁）， <italic>β</italic>-endorphin （<italic>β</italic>-EP）， bone-specific alkaline phosphatase （BALP）， and osteocalcin （BGP） in the observation group after treatment were significantly elevated as compared with those in the control group （<italic>P</italic><0.05）， whereas the serum tumor necrosis factor-<italic>α</italic> （TNF-<italic>α</italic>） and <italic>D</italic>-dimer （<italic>D</italic>-D） declined （<italic>P</italic><0.05）. The TCM symptom score in the observation group after treatment was obviously lower than that in the control group， while the Harris Hip Score （HHS） was higher （<italic>P</italic><0.05）. The overall response rate of the observation group was 93.88% （46/49）， higher than 75.51% （37/49） of the control group （<italic>χ²</italic>=6.376， <italic>P</italic><0.05）. The total incidence of incision infection， deep vein thrombosis of lower limbs， and pulmonary infection in the control group was 24.49% （12/49）， significantly higher than 6.12% （3/49） in the observation group （<italic>χ²</italic>=6.607， <italic>P</italic><0.05）. Conclusion:The modified Shiquan Dabutang is able to alleviate inflammation， regulate bone metabolism， promote bone repair， and reduce the incidence of complications in elderly patients with OIFs due to Qi and blood deficiency.

Analysis of endoscopic and pathological features of gastric adenomatous polyps and risk factors for canceration / 北京大学学报(医学版)

OBJECTIVE@#To investigate the endoscopic and pathological characteristics of gastric adenomatous polyps and to assess the potential risk factors for canceration of gastric adenomatous polyps.@*METHODS@#The endoscopic and pathological characteristics of the patients with gastric adenomatous polyps from January 1, 2005 to December 31, 2019 were summarized retrospectively, and the risk factors of canceration were analyzed.@*RESULTS@#A total of 125 patients with gastric adenomatous polyps were included, 51.20% of whom were females. The average age was (66.7±12.3) years. 64.80% of patients with gastric adenomatous polyps equal or more than 65 years old, and only 5.60% of the patients less than 45 years old. Adenomatous polyps were mostly distributed in the corpus and antrum with 40.80% and 32.80%, respectively. The majority of them were single (90.40%) and sessile (76.81%). 65.4% of adenomatous polyps were no more than 1.0 cm in diameter, and 23.20% of patients with adenomatous polyps were combined with hyperplastic polyps and/or fundus glandular polyps, and 1.60% had both pathological types of polyps. 58.62% (17/29) patients with hyperplastic polyps and/or fundus glandular polyps had multiple polyps. 1.60% (2/125) of the patients had gastric neuroendocrine tumor of G1 stage. Synchronous gastric cancer was detected in 13.60% (17/125) of the patients with adenomatous polyps, and the proportion of low-grade intraepithelial neoplasia was 18.40% (23/125). The main types of synchronous gastric cancer were progressive (70.59%) and undifferentiated (66.67%). Chronic atrophic gastritis with intestinal metaplasia was found in 52.80% of the patients, and autoimmune gastritis accounted for 11.20%. The positive rate of Helicobacter pylori was 21.60%. The canceration rate of gastric adenomatous polyps was 20.80%. The cancer was mainly differentiated, but there was sigmoid ring cell carcinoma as well. Diameter of >1.0 cm (OR=5.092, 95%CI: 1.447-17.923, P=0.011), uneven surface morphology and erosion (OR=13.749, 95%CI: 1.072-176.339, P=0.044) were independent risk factors of adenomatous polyps.@*CONCLUSION@#The synchronous gastric cancer is common and the canceration of gastric adenomatous polyps is high with diameter and surface morphology as independent risk factors. We should pay attention to the identification of the pathological types of polyps and the evaluation of the whole gastric mucosa during the endoscopic examination.

Epidemiological and clinical features of functional dyspepsia in a region with a high incidence of esophageal cancer in China / 中华医学杂志(英文版)

BACKGROUND@#Functional dyspepsia (FD) has rarely been investigated in areas with a high prevalence of esophageal squamous cell carcinoma (ESCC). This study aims to reveal the epidemiological and clinical features of FD and organic dyspepsia (OD) in such a population.@*METHODS@#A middle-aged and elderly population-based study was conducted in a region with a high incidence of ESCC. All participants completed the Gastroesophageal Reflux Disease Questionnaire and Functional Gastrointestinal Disease Rome III Diagnostic Questionnaire, and they underwent gastroscopy. After exclusion of gastroesophageal reflux disease, uninvestigated dyspepsia (UID) was divided into OD and FD for further analyses.@*RESULTS@#A total of 2916 participants were enrolled from July 2013 to March 2014 in China. We detected 166 UID cases with questionnaires, in which 17 patients with OD and 149 with FD were diagnosed via gastroscopy. OD cases presented as reflux esophagitis (RE), ESCC, and duodenal ulcer. Heartburn (52.94%) and reflux (29.41%) were common in OD, but no symptomatic differences were found between FD and OD. Male sex, low education level, and liquid food were the risk factors for OD, while frequent fresh vegetable consumption was a protective factor. FD included 56 (37.58%) cases of postprandial distress syndrome (PDS), 52 (34.89%) of epigastric pain syndrome (EPS), nine (6.04%) of PDS + EPS, and 32 (21.48%) of FD + functional esophageal disorders. The Helicobacter pylori infection rate in FD patients was not higher than that in the control group (34.23% vs. 42.26%, P = 0.240). Frequent spicy food consumption was associated with PDS (odds ratio [OR]: 2.088, 95% confidence interval [CI]: 1.028-4.243), while consumption of deep well water was protective for PDS (OR: 0.431, 95% CI: 0.251-0.741).@*CONCLUSIONS@#The prevalence of FD was 5.11% in the studied population. Gastroscopy should be prescribed for dyspepsia patients in case that ESCC and RE would be missed in UID cases diagnosed solely by the Rome III questionnaire.@*TRIAL REGISTRATION@#ClinicalTrials.gov, NCT01688908; https://clinicaltrials.gov/ct2/show/record/NCT01688908.

Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis / Comparação biomecânica da força de fixação de parafuso com orientação de plantar para dorsal e vice-versa para artrodese subtalar

ABSTRACT Objective To compare screw fixation strength for subtalar arthrodesis. Methods Eight matched pairs of cadaver feet underwent subtalar joint arthrodesis with two 7.3mm cannulated screws. Randomization was used to assign screw orientation, such that one foot in each pair was assigned dorsal to plantar screw orientation (DP Group), and the other foot, plantar to dorsal orientation (PD Group). Standard surgical technique with fluoroscopy was used for each approach. Following fixation, each specimen was loaded to failure with a Bionix ® 858 MTS device, applying a downward axial force at a distance to create torque. Torque to failure was compared between DP and PD Groups using Student's t test, with p=0.05 used to determine statistical significance. Results Statistical analysis demonstrated that the mean torque to failure slightly favored the DP Group (37.3Nm) to the PD Group (32.2Nm). However, the difference between the two groups was not statistically significant (p=0.55). Conclusion In subtalar arthrodesis, there is no significant difference in construct strength between dorsal-to-plantar and plantar-to-dorsal screw orientation. The approach chosen by the surgeon should be based on factors other than the biomechanical strength of the screw orientation.

RESUMO Objetivo Comparar a força de fixação dos parafusos para artrodese subtalar. Métodos Oito pares de pés de cadáveres frescos foram submetidos à artrodese da articulação subtalar com dois parafusos canulados de 7,3mm. A randomização foi usada para atribuir a orientação do parafuso, de modo que um pé em cada par foi designado com orientação de dorsal para plantar (Grupo DP), e o outro pé com orientação de plantar para dorsal (Grupo PD). Técnica cirúrgica padrão com radioscopia foi usada para os procedimentos. Após a fixação, cada amostra foi testada até a falha com um dispositivo Bionix®858 MTS, aplicando força axial descendente a uma distância para criar torque. O torque de falha foi comparado entre os Grupos DP e PD, usando o teste t de Student, com p=0,05 usado para determinar significância estatística. Resultados A análise estatística demonstrou que a média do torque até a falha favoreceu ligeiramente o Grupo DP (37,3Nm) em relação ao PD (32,2Nm). No entanto, a diferença entre os dois grupos não foi estatisticamente significativa (p=0,55). Conclusão Na artrodese subtalar, não há diferença significativa na força de compressão entre as orientações dos parafusos dorsal-plantar e plantar-dorsal. A abordagem escolhida pelo cirurgião deve ser baseada em outros fatores, sem preocupação com a força biomecânica da orientação dos parafusos.

Characteristics analysis of early gastric cancer under white light endoscopy / 北京大学学报(医学版)

OBJECTIVE@#To investigate endoscopic features of early gastric cancer and clinical features of the patients, which may be helpful to provide reasonable suggestions for physicians to diagnose early gastric cancer during preliminary screening of white light gastroscopy.@*METHODS@#A total of 271 patients who received endoscopic submucosal dissection or surgical operation to confirm early gastric cancer in Peking University Third Hospital from Apr. 2009 to Jun. 2017 were included for the retrospective review. Clinical information was collected, including gender, age, symptoms, family history and physical examination. The endoscopic characteristics of lesions under white light endoscopy were analyzed, including endoscopic long diameter, location, texture, spontaneous bleeding, mucosal color and morphology. The pathologic long diameter, infiltration depth and differentiation degree of early gastric cancer were also summarized.@*RESULTS@#The study included 271 patients and 279 lesions. Among the 271 cases, 190 were male, 81 were female, average age was (63.7±12.4) years. There were 88 cases (32.5%) and 61 cases (22.5%) with the symptom of abdominal pain and discomfort respectively. The patients with family history of gastric cancer were 20 (7.4%). Abdominal physical examinations of the patients were mostly normal, accounting for 86.0% (233/271). Total detection rate of helicobacter pylori (HP) was 34.2% (79/231), with the highest rate 45.5% (10/22) in 2011 and the lowest rate 28.1% (9/32) in 2014. Among the 279 lesions, the mean endoscopic long diameter was (2.01±1.20) cm. The lesions were mainly single, accounting for 97.0% (263/271). There were 114 cases (40.9%), 62 cases (22.2%), 54 cases (19.4%) in the antrum, angular sulcus and cardia of stomach respectively. The lesions were mostly fragile, accounting for 45.5% (56/123). Most lesions had spontaneous bleeding, accounting for 52.3% (146/279). The mucosal color was mostly normal, accounting for 72.8% (203/279). The most common macroscopic morphology was IIa+IIc type (100 cases, 35.8%) and the lesions usually had mucous membrane damage like erosion and shallow ulcer (127 cases,45.5%). Among the 279 lesions, the mean pathologic long diameter was (2.05±1.48) cm. Intramucosal carcinoma accounted for 61.6% (172/279) and moderate differentiated gastric cancers accounted for 52.8% (131/248).@*CONCLUSION@#In order to improve diagnosis of early gastric cancer,superficial elevation and depression of flat lesions as well as mucous membrane damage under white light endoscopy should be taken notice.

Expression of piR-9994 in gastric carcinoma and its correlation with PIWIL4 / 临床与实验病理学杂志

Purpose To explore the relationship between the expression level of piR-9994 in gastric cancer and its clinical pathological features,and to analyze its correlation with PIWIL4 expression. Methods Express of piR-9994 and PIWIL4 in 76 cases of human gastric cancer tissue with different clinical stage and differentiated degree and matching adjacent tissue were detected by qRT-PCR and immunohistochemistry,respectively. Results The expression of piR-9994 in gastric cancer was 2. 3 times higher than that in paracancerous tissues (P = 0. 002 2) . The expression of piR-9994 in stage Ⅲ + Ⅳ gastric cancer was 3. 5 times higher than that in stage Ⅰ + Ⅱ (P = 0. 002) ,and the expression of piR-9994 in cancers with nerve invasion was 2. 5 times higher than that in cancers without invasion (P = 0. 036) . The positive expression of PIWIL4 in gastric cancer tissues was significantly higher than that in adjacent tissues (χ2 = 18. 346,P < 0. 001) ,and the expression of PIWIL 4 in stage Ⅲ +Ⅳ gastric cancer group was higher than that stage Ⅰ + Ⅱ gastric cancer group (χ2 = 8. 60,P = 0. 003) . There was a positive correlation between piR-9994 expression and PIWIL4 expression in gastric carcinoma (r = 0. 231,P < 0. 05) . Conclusion piR-9994 overexpression in gastric cancer tissues is closely related to tumor staging and nerve invasion,and piR-9994 may promote the occurrence and progression of gastric cancer by regulating PIWIL4 expression. piR-9994 may be a molecular markers for judging malignant degree and prognosis of gastric cancer.

Research progress on osteoinductive properties of bone substitute materials / 口腔疾病防治

@#Bone graft material is not only a simple scaffold frame, but also a material with the potential to induce cells grow and differentiate into osteoblasts. The material with excellent bone induction properties can accelerate the healing of bone defect, thus repair the large area of bone defect successfully. Currently, plenty of researches regarding the bone induction in bone graft material have been reported, how to maximize the material osteoinductive potential, and to take advantage of these biological materials to produce the next generation of innovative biological material, is the current concerns. In this paper, a review is made on the bone induction properties of several kinds of bone substitutes.

Cellular stress and redox activity proteins are involved in gastric carcinogenesis associated with Helicobacter pylori infection expressing high levels of thioredoxin-1 / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

Helicobacter pylori infection is related to the development of gastric diseases. Our previous studies showed that high thioredoxin-1 (Trx1) expression in H. pylori can promote gastric carcinogenesis. To explore the underlying molecular mechanisms, we performed an isobaric tags for relative and absolute quantitation (iTRAQ)-based quantitative proteomic analysis of stomach tissues from Mongolian gerbil infected with H. pylori expressing high and low Trx1. Differences in the profiles of the expressed proteins were analyzed by bioinformatics and verified using Western blot analysis. We found three candidate proteins, 14-3-3α/β, glutathione-S-transferase (GST), and heat shock protein 70 (HSP70), in high Trx1 tissues compared with low Trx1 tissues and concluded that cellular stress and redox activity-related proteins were involved in the pathogenesis of gastric cancer associated with H. pylori Trx1.

Effects of Different TCM Exercises for Preventive Treatment of Diseases on Sleep Quality, Depression and Anxiety of College Students / 中国中医药信息杂志

Objective To observe the effects of different TCM exercises for preventive treatment of diseases on sleep quality and multidimensional mental health level of college students.Methods According to the willing of the research objects, 132 college students were divided into Yijinjing group, Baduanjin group, Wuqinxi group, Tai Chi group, and jogging group. They exercised 45 min each time, 5–6 times per week, received central guidance every two weeks, and exercise intensity was timely adjusted based on master of physical activity and reaction to the situation of college students, for 2 months. PSQI, BFS, SDS and SAS before and after intervention in each group were observed. Results After intervention, five kinds of exercises could improve sleep situation of college students, and had their own focus in sleep quality, falling-asleep time, sleep time, sleep efficiency, sleep disorders, sleep medication, daytime dysfunction. There was statistical significance in BFS activity score, thought score, anger score, excitation score, and depression score after intervention in Yijinjing group compared with before intervention (P<0.05); There was statistical significance in activity score, total joy score, calm total score after intervention in Wuqinxi group compared with before intervention (P<0.05). There was statistical significance in SAS total scores of college students in Yijinjing group, Baduanjin group, and jogging group after intervention compared with before intervention (P<0.05). There was statistical significance in SAS standard scores of college students in Yijinjing group, Baduanjin group, and jogging group after intervention compared with before intervention (P<0.05). There was no statistical difference in SDS scores in the five groups before and after intervention (P>0.05).Conclusion 5 kinds of exercises can improve the sleep quality from different aspects. Yijinjing group and Wuqinxi group can improve the mental health of college students, of which Yijinjing group can bi-directionally regulate the positive and negative psychological indicators of college students.

Improving the thermostability of Trichoderma reesei xylanase 2 by introducing disulfide bonds

Background: Xylanases are considered one of the most important enzymes in many industries. However, their low thermostability hampers their applications in feed pelleting, pulp bleaching, and so on. The main aim of this work was to improve the thermostability of Trichoderma ressei xylanase 2 (Xyn2) by introducing disulfide bonds between the N-terminal and α-helix and the ß-sheet core. Results: In this work, two disulfide bonds were separately introduced in the Xyn2 to connect the N-terminal and α-helix to the ß-sheet core of Xyn2. The two disulfide bonds were introduced by site-directed mutagenesis of the corresponding residues. The half-life of the mutants Xyn2C14­52 (disulfide bond between ß-sheets B2 and B3) and Xyn2C59­149 (disulfide bond between ß-sheets A5 and A6) at 60°C was improved by approximately 2.5- and 1.8-fold compared to that of the wild type Xyn2. In addition, the enzyme's resistance to alkali and acid was enhanced. Conclusion: Our results indicated that the connection of the N-terminal and α-helix to the ß-sheet core is due to the stable structure of the entire protein.

Risk factors associated with systemic inflammatory response syndrome after percutaneous nephrolithotomy in China:A Meta-analysis / 中国内镜杂志

Objective To explore the risk factors of systemic inflammatory response syndrome crisis (SIRS) after percutaneous nephrolithotomy (PCNL) in China. Methods Databases of CNKI, CBM, WanFan and VIP were searched to retrieve studies about systemic inflammatory response syndrome after percutaneous nephrolithotomy to October, 2016. Results 18 studies involving 5,323 patients were included. The results of meta-analysis showed that:a) univariate analysis indicated that renal insufficiency [O(R) =2.78, 95%CI (1.96 to 3.95), P = 0.000], preoperative positive urine culture [O(R) = 3.41, 95%CI (1.89 to 6.15), P = 0.000], preoperative routine urine leucocyte positive [O(R) = 3.78, 95%CI (3.02 to 4.72), P = 0.000], diabetes mellitus [O(R) = 2.14, 95%CI (1.33 to 3.45), P = 0.002], pelvic positive urine culture [O(R)= 5.14, 95%CI (2.46 to 10.73), P = 0.000] and operation time ≥120 min [O(R) = 2.31, 95%CI (1.40 to 3.82), P = 0.001] were the risk factors of SIRS; b) multivariate analysis showed that, preoperative positive urine culture [O(R) = 6.83, 95%CI (2.82 to 16.57), P = 0.000], preoperative routine urine leucocyte positive [O(R) = 5.43, 95%CI (3.51 to 8.41), P = 0.000], diabetes mellitus [O(R) = 2.85, 95%CI (1.45 to 5.58), P = 0.002], pelvic positive urine culture [O(R) = 4.30, 95%CI (1.30 to 14.21), P = 0.020] and operation time ≥120 min [O(R) = 2.72, 95%CI (1.62 to 4.59), P = 0.000] were the independent risk factors of MCAT. Conclusion The independent risk factors of SIRS for patients after PCNL are diabetes mellitus, preoperative positive urine culture, preoperative routine urine leucocyte positive, pelvic positive urine culture and operation time. However, due to the quantity and low quality of the included literature, the conclusion needs the support from high quality studies.

Risk factors associated with systemic inflammatory response syndrome after percutaneous nephrolithotomy in China:A Meta-analysis / 中国内镜杂志

Objective To explore the risk factors of systemic inflammatory response syndrome crisis (SIRS) after percutaneous nephrolithotomy (PCNL) in China. Methods Databases of CNKI, CBM, WanFan and VIP were searched to retrieve studies about systemic inflammatory response syndrome after percutaneous nephrolithotomy to October, 2016. Results 18 studies involving 5,323 patients were included. The results of meta-analysis showed that:a) univariate analysis indicated that renal insufficiency [O(R) =2.78, 95%CI (1.96 to 3.95), P = 0.000], preoperative positive urine culture [O(R) = 3.41, 95%CI (1.89 to 6.15), P = 0.000], preoperative routine urine leucocyte positive [O(R) = 3.78, 95%CI (3.02 to 4.72), P = 0.000], diabetes mellitus [O(R) = 2.14, 95%CI (1.33 to 3.45), P = 0.002], pelvic positive urine culture [O(R)= 5.14, 95%CI (2.46 to 10.73), P = 0.000] and operation time ≥120 min [O(R) = 2.31, 95%CI (1.40 to 3.82), P = 0.001] were the risk factors of SIRS; b) multivariate analysis showed that, preoperative positive urine culture [O(R) = 6.83, 95%CI (2.82 to 16.57), P = 0.000], preoperative routine urine leucocyte positive [O(R) = 5.43, 95%CI (3.51 to 8.41), P = 0.000], diabetes mellitus [O(R) = 2.85, 95%CI (1.45 to 5.58), P = 0.002], pelvic positive urine culture [O(R) = 4.30, 95%CI (1.30 to 14.21), P = 0.020] and operation time ≥120 min [O(R) = 2.72, 95%CI (1.62 to 4.59), P = 0.000] were the independent risk factors of MCAT. Conclusion The independent risk factors of SIRS for patients after PCNL are diabetes mellitus, preoperative positive urine culture, preoperative routine urine leucocyte positive, pelvic positive urine culture and operation time. However, due to the quantity and low quality of the included literature, the conclusion needs the support from high quality studies.

Predictive value of pediatrics end-stage liver disease or model for end-stage liver disease score in the prognosis of pediatric acute liver failure treated with artificial liver support system / 中华儿科杂志

<p><b>OBJECTIVE</b>To investigate the predictive value of pediatrics end-stage liver disease (PELD) or the model for end-stage liver disease (MELD) in the prognosis of pediatric acute liver failure (PALF) treated with artificial liver support system (ALSS).</p><p><b>METHOD</b>The clinical data of 47 children with acute liver failure seen from August 2008 to July 2013 treated in Children's Hospital, Fudan University were analyzed. Thirty children were treated with ALSS in addition to conventional comprehensive medical treatment (ALSS group). Seventeen children were treated with only conventional comprehensive medical treatment (control group). The main biochemical parameters and coagulation function parameters before and after treatment were compared in the ALSS group and the mortality rates were compared between the two groups. The patients were graded by PELD or MELD when they were hospitalized and the relationship of PELD or MELD scores and mortalities of child patients with the receiver operating characteristic curve (ROC) were analyzed.</p><p><b>RESULT</b>There were significant differences in total bilirubin (TB) ((302 ± 208) vs. (161 ± 129) µmol/L); alanine aminotransferase (ALT) ((161 ± 225) vs. (761 ± 834) U/L); aspartate aminotransferase ( AST) (66 (35, 123 ) vs. 447 (184, 1,129 ) U/L) ; international normalized ratio (INR) ((2.6 ± 1.6) vs. (5.1 ± 4.0)); prothrombin time activity percentage (PTA) ((42 ± 25)% vs. (22 ± 13)%); albumin( ALB) ((35 ± 5) vs. (33 ± 6) g/L) in the ALSS group after treatment. Through the ROC curve analysis, the best PELD/MELD threshold was 25 to predict the patients survival after ALSS therapy, with a sensitivity of 92. 3% , and a specificity of 94.1% at the cutoff point. The area under the ROC curve was 0. 912. The mortality of patients with PELD or MELD score below 25 in the ALSS group (1/13) was lower than the control group (3/4) (P = 0.022), and the mortality of patients with PELD or MELD score over 25 (16/17) was higher than that of the control group (10/13) (P = 0.290).</p><p><b>CONCLUSION</b>PELD or MELD score is a valid index in prognostic evaluation of ALSS therapy, which may provide an evidence for the therapeutic strategies of PALF. Patients with PELD or MELD score below 25 treated with ALSS obtained more benefit.</p>

Genetic characteristics of enterovirus 71 VP1 and epidemiology of hand-foot-mouth disease in Xinxiang in 2011 / 病毒学报

The study was performed to examine the enterovirus 71(EV71) VP1 genetic feature and the epidemiology of hand-foot-mouth disease (HFMD) in Xinxiang in 2011. Real-time RT-PCR was used for the detection of Pan-enterovirus, Coxsackievirus A 16(CA16) and EV71 from stool specimens of HFMD. The VP1 region was amplified from 10 EV71 positive samples and the products were sequenced. EV71 genotypes were characterized by homology and phylogenetic tree analyses. Additionally, epidemic data of Xinxiang HFMD in 2011 was analyzed. The results revealed that 73% of the specimens from severe cases were determined as EV71 positive, which was significantly higher than CA16-positive ones (19%) (P < 0.01). Ten EV71 strains isolated in Xinxiang belonged to C4a cluster of sub-genotype C4, with 2.8% nucleotide and 0.9% amino acid sequences divergence among them. At position 170 in VP1 gene, an alanine(A) was predominant in 9 isolates, while a valine(V) residue was observed in one isolate. Compared to the representative C4a strains which were closely related to Xinxiang isolates, the amino acid variations of the pre-dominant Xinxiang strains generally occurred at position 292, threonine --> alanine (T --> A). A total of 1118 HFMD cases were reported in Xinxiang in 2011, and 92% of them were younger than 3 years old; the incidence rate peaked in April and December, suggesting that it is very necessary to strengthen HFMD prevention and control even in cold weather.

Regulation and control of wenshen yangxue granule combined with clomifene citrate on INH-ACT-FS system in patients with follicular maldevelopment infertility / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To observe the clinical curative effect of Wenshen Yangxue Granule (WSYXG) combined with clomifene citrate (CC) in treating follicular maldevelopment (FM) infertility, and to explore its possible action channels.</p><p><b>METHODS</b>Ninety patients with FM of Shen-deficiency blood stasis syndrome were randomly assigned to 3 groups, i.e., the Chinese medicine group (CMG, treated with WXYXG), the Western medicine group (WMG, treated with CC), and the combination group of Chinese medicine and Western medicine (CG, treated with both WSYXG and CC), 30 cases in each group. Three menstrual cycles were totally observed. Serum levels of luteinizing hormone (LH), follicle stimulating hormone (FSH), estradiol (E2 ), inhibin B (INHB), activin A (ACTA), and follistatin (FS) were tested before and after treatment, and the ovulation was monitored and their basic body temperature measured.</p><p><b>RESULTS</b>There was no statistical difference in clinical efficacy among the three groups (P> 0.05). Better effects on the Chinese medicine syndrome efficacy, the ovulation rate, and the endometrium thickness on the ovulation day were shown in CMG and CG than in WMG, showing statistical difference (P < 0.05). The E2 level increased on the third day of the first menstrual cycle in CG when compared with before treatment. On the 10th day of the 1st menstrual cycle, the INHB and FS increased and the ACTA decreased, showing statistical difference (P < 0.05). On the 10th day of the 3rd menstrual cycle the serum LH level decreased more obviously in CG than in WMG, showing statistical difference (P < 0.05). On the 3rd day of the 3rd menstrual cycle in CG, the INHB was negatively correlated with FSH (r = -0.492,P < 0.01), and INHB on the 10th day was positively correlated with E2 and FS (r = 0.682, 0.772, P < 0.01), and negatively correlated with ACTA on the 10th day (r = -0.635, P < 0.01).</p><p><b>CONCLUSION</b>WSYXG combined with CC could improve Chinese medicine syndrome, regulate the expressions of FM patients' ovary local factors INHB, ACTA and FS, improve the condition of ovary functions, and control the follicle development.</p>

Characterization of Calreticulin Expression in Mouse Endometrium during Embryo Implantation

Calreticulin (CRT), a Ca2+-binding storage protein and chaperone in the endoplasmic reticulum, modulates cell adhesiveness and integrin-dependent Ca2+ signaling. However, the role of CRT during implantation remains poorly understood. In the present study, we characterized the expression of CRT mRNA and the protein in mouse endometria from pregnancy DI to D7. Real-Time PCR and in situ hybridization results showed that the levels of CRT mRNA in the endometria of pregnant mice were significantly higher than those of non-pregnant mice (P<0.05), and increased gradually from pregnancy DI to D4, reaching the máximum level on D4, followed by a plateau from D4 to D7. Using immunofluorescence histochemistry and western blot, changes of CRT expression in the endometria of pregnant mice were consistent with the expression of CRT mRNA. Furthermore, antisense CRT oligodeoxynucleotide was injected into the uterus horns of pregnant mice (D3) to investígate its effect on embryo implantation. The result showed that the number of implanted embryos markedly decreased in the side of uterine horns receiving antisense CRT oligodeoxynucleotide(í><0.05). These findings suggest that CRT may play an important role in embryo implantation in mice.

Denaturant gradient gel electrophoresis in the genetic diagnosis of hereditary multiple exostoses / 中南大学学报(医学版)

OBJECTIVE@#To detect the mutations of EXT2 gene in hereditary multiple exostoses (HME) families and to investigate the sensitivity of denaturant gradient gel electrophoresis (DGGE) in screening the mutations in EXT2 gene.@*METHODS@#Five HME families and 3 sporadic patients were screened for the mutation detection in all exons of EXT2 gene covering the coding sequence and the flanking intronic sequence by DGGE, and DNA sequencing was performed for products with abnormal conformation.@*RESULTS@#Among these HME patients, we found 2 disease-causing mutations: A313T (nonsense mutation) and 319 insGT (frameshift mutation).@*CONCLUSION@#Two mutations of EXT2 gene are identified in the sample. DGGE can be an ideal choice for gene diagnoses of HME.

Alpha-galactosidase A gene mutation in a Chinese family with Fabry disease mimicking clinical features of hypertrophic cardiomyopathy / 中华心血管病杂志

<p><b>OBJECTIVE</b>To screen gene mutation in alpha-galactosidase A (alpha-Gal A) in a nonconsanguineous Chinese family with Fabry disease (FD) with clinical manifestations similar to hypertrophic cardiomyopathy (HCM).</p><p><b>METHODS</b>Mutation analysis was performed by using purified PCR products to direct sequence analysis on an ABI-377XL automated DNA sequencer. DNA analysis of alpha-Gal A gene and physical and clinical examinations were performed in a female proband and in her relatives (15 subjects in total).</p><p><b>RESULTS</b>Three hemizygotes and 6 heterozygotes were diagnosed for FD by the alpha-Gal A gene analysis with a missense mutation in exon 5 of the alpha-Gal A sequence, leading to a TGG32TGA substitution, which may induce the absent of tryptophan's translation (corresponded to TGG) by the terminator codon TGA. Six patients in the family were revealed as HCM by echocardiography.</p><p><b>CONCLUSIONS</b>Present results show that it is important to differentiate FD from other causes of hypertrophy in patients with cardiac hypertrophy. Screening for alpha-Gal A gene mutations in patients with FD and in their relatives could help to identify all suspected cases within the families.</p>

Repair of soft-tissue defects of feet and ankles by using an expanded reverse island flap with a saphenous neuro-vascular pedicle / 中华整形外科杂志

<p><b>OBJECTIVE</b>To evaluate a expanded reverse island flap with a saphenous neuro-vascular pedicle for repairing the defects of the feet and ankles.</p><p><b>METHODS</b>An expanded reverse island skin flap, with the Six saphenous neuro-vascular pedicle, was designed to repair the skin defects on the feet and ankles.</p><p><b>RESULTS</b>patients with the defects of the feet and ankles were treated with the expanded saphenous island flap and all of the The expanded reversed island skin flaps were survived. The largest flap size was 12 cm x 10 cm.</p><p><b>CONCLUSIONS</b>flap could be a good option for repairing the defects of the feet and ankles.</p>

Observation on effect of compound danshen droplet-pill combined with trimetazidine in treating senile unstable angina pectoris / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To investigate the effect of compound Danshen Droplet-pill (DS) combined with trimetazidine (TMZ) in treating senile unstable angina pectoris (SUAP).</p><p><b>METHODS</b>One hundred and twenty patients with SUAP were eaually and randomly divided into 2 groups, the treated group and the control group. Changes of angina, occurrence of arrhythmia, myocardial infarction and sudden death, myocardial ischemia in ECG and partial indexes of heart function were observed.</p><p><b>RESULTS</b>The total effective rate in the treated group was 78.3%, while that in the control group was 53.3%, comparison of the two groups showed significant difference (P < 0.05). The incidence rate of arrhythmia in the two groups was 18.2% and 30.0% respectively and that of acute myocardial infarction and sudden death was 0 and 5.0% respectively, also showed significant difference between them (P < 0.05). Condition of myocardial ischemia revealed in ECG and partial indexes of heart function in the treated group were all improved to certain extent. Conclusion DS combined with TMZ is superior in treating SUAP.</p>