中国老年糖尿病人群合并周围神经病变危险因素Meta分析

目的:探讨中国老年糖尿病人群合并周围神经病变的主要危险因素。方法:计算机检索中国知网、万方、维普、中国生物医学文献数据库(CBM)、PubMed、Web of Science、EMbase、Cochrane Library数据库中关于中国老年糖尿病人群合并周围神经病变危险因素的相关文献,检索时限为建库至2022年10月11日。采用Stata 12.0进行Meta分析。结果:共纳入12篇文献,包括老年糖尿病患者合计3 492例,合并周围神经病变患者2 057例。Meta分析显示,中国老年糖尿病合并周围神经病变的危险因素包括年龄[OR=1.194,95%CI(1.111,1.283),P<0.05]、病程[OR=1.756,95%CI(1.497,2.060),P<0.05]、糖化血红蛋白(HbAlc)[OR=1.516,95%CI(1.244,1.848),P<0.05]、总胆固醇(TC)[OR=1.323,95%CI(1.079,1.622),P<0.05]、餐后2 h血糖[OR=1.108,95%CI(1.056,1.163),P<0.05]。结论:影响...     

胃癌根治术后并发肺部感染危险因素的Meta分析

目的 系统评价胃癌根治术后患者发生肺部感染的危险因素。方法 检索PubMed、Web of Science、Embase、中国知网、万方数据库、维普数据库和中国生物医学文献数据库,检索时间为建库至2021年12月17日。由2名研究者独立筛选文献、提取资料,采用NOS量表进行质量评价,应用RevMan 5.4、Stata15.1软件进行Meta分析。结果 共纳入23项研究,总样本量为10 696例。Meta分析结果显示,胃癌根治术后并发肺部感染的危险因素包括高龄[OR=2.67,95%CI(1.90,3.74),P <0.001）]、吸烟史[OR=3.09,95%CI(2.44,3.92),P <0.001]、糖尿病[OR=4.48,95%CI(1.91,10.53),P <0.001]、围手术期输血[OR=4.49,95%CI(2.65,7.61),P <0.001]、手术时间长[OR=2.19,95%CI(1.19,4.03),P=0.01]、术中出血[OR=2.46,95%CI(1.62,3.74),P <0.001]、留置胃管时间长[OR=4.03,...     

有氧运动对心力衰竭患者炎症因子水平影响的Meta分析

目的 探究有氧运动对心力衰竭患者炎症因子水平的影响。方法 计算机检索中、英文数据库,获取发表时间为建库至2023年3月18日的关于有氧运动对心力衰竭患者炎症因子水平影响的随机对照研究,筛选检索到的文献并进一步提取数据,最终对纳入的文献进行质量评价。使用RevMan5.3软件进行Meta分析。结果 最终纳入11篇研究,涉及618例患者,运动组315例,对照组303例。Meta分析结果显示,与对照组相比,有氧运动能更好地降低心力衰竭患者血浆CRP[RR=-1.26,95%CI(-2.28,-0.24),P=0.02]、hs-CRP[SMD=-1.68,95%CI(-2.00,-1.37),P<0.00001]、TNF-α[SMD=-0.57,95%CI(-0.81,-0.34),P<0.00001]、IL-6[SMD=-0.51,95%CI(-0.71,-0.31),P<0.00001],差异具有统计学意义(P<0.05)。结论 有氧运动能够降低心力衰竭患者炎症因子水平,改善炎症状态。     

老年髋部骨折手术后谵妄危险因素的Meta分析

目的：明确老年髋部骨折手术后谵妄的危险因素。方法：计算机检索各数据库,检索时限为建库至2023年2月1日。经文献筛选、资料提取和质量评价后,分别采用Stata17.0和RevMan5.4软件对谵妄发生率和危险因素进行Meta分析。结果：共纳入16篇文献,老年髋部骨折术后谵妄发病率为23.0%[95%CI=(20%～26%)],其中高龄[OR=1.24,95%CI=(1.10～1.40),P<0.001]、疼痛[OR=2.01,95%CI=(1.48～2.75),P<0.001]、脑卒中史[OR=5.22,95%CI=(2.75～9.92),P<0.001]、合并症≥3[OR=2.25,95%CI=(1.33～3.81),P=0.002]、术前认知功能障碍[OR=3.45,95%CI=(2.51～4.75),P<0.001]、低氧血症[OR=3.91,95%CI=(2.70～5.67),P<0.001]、术前等待时间长[OR=3.98,95%CI=(1.16～13.98),P=0.030]、全麻[OR=2.55,95%CI=(1.81～3.59),P<...     

运动对老年肌肉减少症患者身体功能影响的Meta分析

目的 通过Meta分析评价运动对老年肌肉减少症患者身体功能的影响。方法 计算机检索Pubmed、The Cochrane Library、Web of Science、Embase、CINAHL、中国生物医学文献数据库、知网、万方、维普数据库,收集关于运动对肌肉减少症患者身体功能影响的随机对照试验,检索时间截止到2020年12月。经2名研究者筛选文献、提取信息与质量评价后,采用RevMan5.4软件进行Meta分析。结果 最终纳入16项研究,共900例患者。Meta分析结果显示,运动能提高患者的步态速度[SMD=0.34,95%CI(0.08,0.60),P=0.01]、移动能力[SMD=-0.75,95%CI(-0.99,-0.52),P<0.00001]、平衡能力[MD=10.82,95%CI(6.81,14.82),P<0.00001]、下肢肌肉力量[MD=2.63,95%CI(1.61,3.65),P<0.00001;MD=-2.18,95%CI(-3.97,-0.40),P=0.02]以及手握力[SMD=0.29,95%CI(0.14,0.43),P=0.0...     

新型冠状病毒肺炎病情严重程度与预后指标相关性的Meta分析

背景　世界卫生组织表示新型冠状病毒肺炎（COVID-19）的爆发已经构成一次全球性的“大流行”,其病情严重程度影响患者预后。目的　探索COVID-19病情严重程度和预后指标的相关性,从而确定预后指标对病情严重程度的评估和预测价值,为临床COVID-19的病情转归及预后评估提供参考。方法　计算机检索The Cochrane Library、EMBase、PubMed、Web of Science、SinoMed、中国知网、万方数据知识服务平台、维普网,收集分为重症组和非重症组或死亡组和存活组的COVID-19随机对照试验,并且包含降钙素原（PCT）、C反应蛋白（CRP）、淋巴细胞计数（LYM）、白介素-6（IL-6）、D-二聚体（D-dimer）预后相关指标,文献检索时间是建库至2020-09-03。采用改良Jaded评分量表对文献进行质量评价,运用Stata 12.0软件进行Meta分析。结果　共纳入15篇文献,1 476例患者,Jadad评分均在4~5分,均为高质量文献。Meta分析结果显示,重症组患者的PCT〔SMD=-2.28,95%CI（-3.60,-0.98）,P<0.001〕、CRP〔SMD=-2.23,95%CI（-3.38,-1.07）,P<0.001〕、IL-6〔SMD=-2.97,95%CI（-4.94,-1.00）,P<0.001〕、D-dimer〔SMD=-1.22,95%CI（-2.66,0.21）,P=0.008〕高于非重症组。死亡组患者的PCT〔SMD=-4.11,95%CI（-9.98,1.76）,P=0.007〕、CRP〔SMD=-2.73,95%CI（-4.21,-1.25）,P<0.001〕、IL-6〔SMD=-3.79,95%CI（-4.90,-2.67）,P<0.001〕、D-dimer〔SMD=-0.68,95%CI（-1.46,0.09）,P=0.009〕高于存活组。重症组患者的LYM低于非重症组〔SMD=1.41,95%CI（0.34,2.48）,P<0.001〕,死亡组患者的LYM低于存活组〔SMD=2.08,95%CI（0.93,3.22）,P<0.001〕。结论　重型COVID-19患者的PCT、CRP、IL-6、D-dimer高于非重型COVID-19患者,LYM低于非重型COVID-19患者;死亡组COVID-19患者的PCT、CRP、IL-6、D-dimer高于存活组,LYM低于存活组,提示PCT、CRP、IL-6、D-dimer可能与病情严重程度呈正相关,LYM可能与病情严重程度呈负相关。PCT、CRP、IL-6、D-dimer过高以及LYM过低将不利于病情转归,可作为预后指标对患者预后情况进行预测。     

重症急性胰腺炎患者并发急性肾损伤危险因素的Meta分析

背景 急性肾损伤是重症急性胰腺炎常见并发症之一,是重症急性胰腺炎患者预后不良的重要危险因素。防治重症急性胰腺炎患者并发急性肾损伤形势严峻,早期评估、干预相关危险因素可以预防或延缓重症急性胰腺炎患者急性肾损伤的发生。目的 系统分析重症急性胰腺炎患者发生急性肾损伤的危险因素。方法 计算机检索PubMed、Embase、Cochrane Library、Web of Science、中国知网(CNKI)、万方数据知识服务平台(Wanfang Data)、维普网(CQVIP)和中国生物医学文献服务系统(SinoMed)中关于重症急性胰腺炎患者发生急性肾损伤危险因素的文献,检索时限均为建库至2022年1月。由两名研究者按照纳入和排除标准独立进行文献筛选、资料提取和质量评价后,采用RevMan 5.4和Stata 15.1软件进行Meta分析。结果 共纳入21篇文献,总病例数为3 823例。Meta分析结果显示,男性〔OR=1.42,95%CI(1.21,1.68),P<0.001〕,有饮酒史〔OR=1.51,95%CI(1.14,2.01),P=0.004〕,急性生理与慢性健康(APACH...     

褪黑素治疗消化道肿瘤疗效的Meta分析

目的：系统评价褪黑素治疗或辅助治疗消化道肿瘤的有效性。方法：计算机检索pubmed、Cochrane Central Register of Controlled Trials、clinicahrials.gov、中国临床试验注册中心（http：//www.chictr.org.cn/）、中国知网（CNKI）、万方数据库。检索时间从建库至2018年8月。此外追索已纳入文献和综述的参考文献。由两位研究者独立筛选文献、提取资料和评价质量，交叉核对后，采用Stata12.0进行Meta分析。结果：最终纳入10个RCT，共515例患者。Meta分析结果显示：包含褪黑素的治疗方案能提高消化道肿瘤的疾病缓解率[RR=2.481,95%CI(1.651,3.729),P<0.001]、提高疾病稳定率[RR=1.738,95%CI(1.309,2.308),P<0.001]、提高疾病控制率[RR=1.706,95%CI(1.244,2.339),P=0.001]、提高一年生存率[RR=2.535,95%CI(1.549,4.149),P<0.001]。根据褪黑素与化疗联合与否的给药方...     

孕产期生育舞蹈干预对母婴结局影响的Meta分析

目的 系统评价孕产期生育舞蹈对母婴结局的干预效果。方法 在PubMed、Cochrane Library、Embase、Clinical trials、Web of Science、中国知网、万方数据知识服务平台、中国维普全文数据库和中国生物医学文献数据库搜索与生育舞蹈干预分娩相关的随机对照试验,检索时限为建库至2022年3月,采用RevMan5.4软件进行Meta分析。结果 共纳入14项随机对照研究,包括2404例产妇。Meta分析结果显示,与常规产科保健相比,生育舞蹈能有效降低剖宫产率[OR=0.30,95%CI(0.24,0.37),P<0.00001];降低新生儿窒息率[OR=0.16,95%CI(0.09,0.32),P<0.00001]与新生儿早产率[OR=0.32,95%CI(0.18,0.58),P<0.001];缩短第一产程时长[SMD=-4.06,95%CI(-5.31,-2.82),P<0.00001]与总产程时长[SMD=-5.58,95%CI(-7.59,-3.57),P<0.00001];有效缓解分娩疼痛[MD=-0.53,95...     

3D打印联合PBL教学促进骨科教学效果的系统综述

目的旨在通过系统性Meta分析来证实3D打印联合PBL教学可以有效改进骨科学教学质量。方法系统检索中国生物医学文献服务系统、万方数据知识服务平台、维普中文期刊服务平台、中国知网等数据库中关于3D打印联合PBL应用于骨科教学的文献,用Meta分析来评价3D打印联合PBL在骨科学教学中的效果。结果共检出53篇文献,通过筛选共有6篇文献纳入研究,共计纳入390例教学对象。结果提示,3D打印联合PBL教学法与传统教学法对理论成绩[SMD=1.35,95%CI(1.11-1.59),P<0.01]、临床操作[SMD=1.61,95%CI(1.32,1.89),P<0.01]、学习兴趣[SMD=1.17,95%CI(0.85,1.49),P=0.02]等指标的差异具有统计学意义。结论3D打印联合PBL教学可以提高学生骨科学成绩。     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.