白细胞精子症与宫腔内人工授精周期临床妊娠率的关系

目的:探讨白细胞精子症对行宫腔内人工授精(intrauterine insemination,IUI)后周期临床妊娠率的影响。方法:分析在本中心行IUI男性患者的精液检查结果,根据WHO推荐方法对185例男性患者的精液质量进行分析,采用联苯胺染色法检测精液白细胞浓度,并将患者分为白细胞精子症不育患者组(白细胞浓度1×10~6/m L,n=33)和精液白细胞正常不育患者组(白细胞浓度≤1×10~6/m L,n=152)。比较两组间的精液量、精子浓度、精子正常形态率、处理前后前向运动精子总数、精子DNA碎片指数、周期临床妊娠率等方面的差异。结果:白细胞精子症不育组行IUI共47个周期,白细胞正常不育组行IUI共279个周期。两组间精液量、精子浓度、处理前后前向运动精子总数无显著性差异(P0.05)。在精子正常形态率方面,白细胞精子症患者不育组低于白细胞正常不育患者组,有统计学意义(P0.05)。精子DNA碎片指数方面,白细胞精子症患者不育组临床妊娠率高于白细胞正常不育患者组,有统计学意义(P0.05)。但是,在临床妊娠率数据中,我们发现白细胞精子症患者不育组与白细胞正常不育患者组无显著差异(P0.05)。结论:虽然白细胞精子症会影响精子的正常形态、精子存活率以及DNA碎片指数,但是白细胞精子症不影响IUI临床妊娠率。     

Nutritional status and bioelectrical phase angle assessment in adult Crohn disease patients receiving anti-TNFα therapy

BackgroundAltered body composition is frequently observed in Crohn’s disease (CD) patients.AimsTo investigate the nutritional status, and the effect of different therapeutic regimes in adult CD patients.MethodsFat free mass (FFM) and BIA-derived phase angle (PhA) were assessed in 45 CD patients, 22 on conventional therapy (CT) and 23 on maintenance therapy with infliximab (MT). Nutritional status was also assessed in 12 CD patients before and following the induction protocol with infliximab. BIA data of CD patients were compared with those of 20 healthy asymptomatic volunteers. In CD patients C Reactive Protein (CRP) and albuminaemia dosage were obtained.ResultsThe mean values of PhA and of FFM were significantly lower in CT patients when compared with control group and MT patients. Following infliximab treatment FFM increased, although not significantly, while mean phase angle value significantly increased from 4.6 ± 0.3 to 6.2 ± 0.4 (p < 0.05). CRP was significantly lower in MT patients compared to that in CT patients.ConclusionCD patients on conventional therapy showed a lower FFM and a lower mean phase angle score compared to those on infliximab therapy. Following infliximab treatment the mean phase angle score normalized. PhA is a reliable nutritional indicator in IBD patients and could be considered as an additional tool for assessing response to treatment.     

Role of tissue harmonic imaging in focal hepatic lesions: comparison with conventional sonography

Background: The purpose of the present study was to compare iissue harmonic imaging (THI) and conventional sonography in focal hepatic lesions. Methods: Fifty patients with focal hepatic lesions were enrolled for study. Conventional grayscale and THI was performed in all the patients and two sets of images of the lesions were recorded (one each for THI and conventional) and assessed for fluid–solid differentiation, detail and overall image quality. These images were compared with conventional sonographic images and graded better, same or worse as per the case. Lesions were confirmed by fine‐needle aspiration cytology (FNAC)/surgery/other modalities such as computed tomography (CT) or magnetic resonance imaging (MRI). Results: Out of 50 patients with focal hepatic lesions, 21 patients had metastatic lesions (two single; 19 multiple) five patients had hepatocellular carcinoma (HCC), five patients had hydatid cysts, nine had simple hepatic cyst whereas five patients had liver abscess, three had focal fatty infiltration; and lymphoma and hemangioma were seen in one patient each. The first observer ranked THI better than standard sonography in 40 patients (80%) for fluid–solid differentiation, in 38 (76%) for detail and in 39 (78%) for overall image quality. The second observer ranked THI better than standard sonography in 39 patients (78%) for fluid–solid differentiation, in 40 (80%) for detail and in 42 (84%) for overall image quality. Tissue harmonic imaging provided additional information in eight patients (16%) and resulted in treatment alteration in three patients (6%). Conclusion: Tissue harmonic imaging was significantly better than conventional sonography for fluid–solid differentiation, detail and total image quality in focal hepatic lesions, especially in obese patients and patients with poor acoustic window.     

荞麦中芦丁对免疫性肝损伤小鼠肝脏超微结构的影响

目的观察荞麦中芦丁(RBFL)对卡介苗(BCG)和脂多糖(LPS)联合诱导的免疫性肝损伤小鼠肝脏的超微结构的影响。方法于尾静脉注射BCG和LPS,建立小鼠免疫性肝损伤模型。取♂昆明小鼠90只,随机均分为正常组、模型组、RBFL低、中、高剂量组及联苯双酯组。除正常组和模型组ig蒸馏水外,其余各组均ig给予对应药物干预,即40、80、160 mg·kg-1·d-1RBFL及联苯双酯200 mg·kg-1·d-1,gd,连续12 d。剖取肝脏、脾脏、胸腺,计算脏器指数,电镜下观察各组小鼠的肝脏超微结构变化。结果模型组小鼠的肝脏体积增大,肝脏指数较正常组的显著增大(P<0.01),各免疫器官脏器的指数增大,RBFL各剂量有抑制作用。结论 RBFL对BCG和LPS联合诱导的小鼠肝脏超微结构损伤具有保护作用。     

Effects of modified ultrafiltration and conventional ultrafiltration combination on perioperative clinical outcomes in pediatric cardiac surgery: A meta-analysis

Background:This meta-analysis was performed to review the effects of the addition of modified ultrafiltration (MUF) and conventional ultrafiltration (CUF) to CUF alone on postoperative hemoglobin, surgical and ultrafiltration data, and postoperative clinical outcomes in pediatric patients undergoing cardiac surgery.Methods:A systematic search was performed to identify randomized controlled clinical trials that compared MUF and CUF combination with CUF alone in pediatric cardiac surgery undergoing cardiopulmonary bypass (CPB) in PubMed, Embase, Cochrane Library, and Web of Science without any language or date limitation in February 2020. For each included trial, the primary outcomes including post-CPB and postoperative hematocrit, surgical and ultrafiltration data, postoperative clinical outcomes including volume of chest tube drainage within 48 hours after surgery and perioperative blood requirement, ventilation support duration, and length of stay day in the intensive care unit (ICU) and hospital were collected and analyzed. The analysis was conducted using STATA version 12.0.Results:A total of 8 trials encompassing 405 patients were included in this analysis. Analysis indicated that MUF + CUF increased the post-CPB hematocrit (Standard mean difference, SMD = 1.85, 95% confidence interval, 95% CI 0.91–2.79). Meanwhile, ultrafiltration volume was higher in CUF+MUF infants than CUF-alone infants (SMD = 1.46, 95% CI 0.51–2.41, P = .003). The clinical outcomes, including postoperative hemodynamic changes, prime volume, blood requirement, chest tube drainage volume, mechanical ventilation duration, and ICU duration, were unclear because of the unstable sensitivity analyses.Conclusions:Beneficial effects of using MUF and CUF for pediatric cardiac surgery, including increase post-CPB hematocrit and ultrafiltration volume when compared with CUF alone. Meanwhile, MUF and CUF did not significantly influence the postoperative hospital stay duration, CPB, and aortic occlusion duration.     

不同型号大孔吸附树脂对莱菔子水提液中萝卜苷的吸附性考察

目的:研究不同型号大孔吸附树脂对莱菔子水提液中萝卜苷的纯化效果,筛选适合萝卜苷纯化的最佳型号树脂。方法:以萝卜苷的纯化效率为指标,采用高效液相色谱法测定莱菔子水提液和洗脱液中萝卜苷的含量,选择最佳型号大孔树脂。结果:X-5型大孔吸附树脂对萝卜苷的纯化率为86.2%,表明X-5型树脂更适合莱菔子中萝卜苷的纯化。萝卜苷在X-5型树脂上的吸附平衡时间为4 h。结论:采用X-5型大孔吸附树脂纯化莱菔子中萝卜苷是可行的。     

《中国妇幼健康研究》2011至2013年载文的计量学分析

根据文献计量学的方法,对《中国妇幼健康研究》2011至2013年编发论文情况进行统计分析.分析载文量、栏目构成、第1作者年龄、学历及职称、第1作者研究方向、引文类型、基金项目资助等情况,以期了解期刊的刊文趋势和发展方向,为保证该刊学术质量及进一步提高刊物的整体质量提供参考.     

Development and validation of a prognostic nomogram based on objective nutritional indexes in ischemic stroke patients with large vessel occlusion undergoing endovascular thrombectomy

Background and aimsPreserved nutritional status in acute ischemic stroke patients with large vessel occlusion (LVO) undergoing endovascular thrombectomy (EVT) is important but lacks an effective evaluation method. We aimed to investigate the prognostic value of objective nutritional indexes (ONIs) in LVO patients after EVT that were validated by studies in patients with other vascular diseases receiving intervention therapy and to develop a functional prediction nomogram for better stroke management.Methods and resultsLVO patients undergoing EVT from 2016 to 2020 were retrospectively enrolled and randomly classified into training and validation cohorts at a ratio of 7:3. The ONIs, including the Controlling Nutritional Status (CONUT) score, Nutritional Risk Index (NRI), and Prognostic Nutritional Index (PNI), were calculated. A stepwise logistic regression model for 3-month poor functional outcome based on the smallest Akaike information criterion was employed to develop the nomogram, and the nomogram's determination and clinical use were tested by area under the curve (AUC), calibration plots, and decision curve analysis and compared with three earlier prognostic models. A total of 418 patients were enrolled. The CONUT independently related and increased the risk of 3-month poor functional outcome with an OR of 1.387 (95% CI: 1.133–1.698, p = 0.002). A nomogram including CONUT and other seven factors (AIC = 274.568) was developed. The AUC of the nomogram was 0.847 (95% CI: 0.799–0.894) and 0.836 (95% CI: 0.755–0.916) in the training and validation cohort, respectively, with better predictive performance and clinical utility than previous models.ConclusionThe CONUT independently related to the poor functional outcome, and the newly established nomogram reliably predicted the functional outcome in LVO patients after EVT.     

体重≤5 kg婴儿简单先天性心脏病外科术中微小化体外循环管路应用改良超滤和常规超滤的比较

目的:比较利用微小化体外循环(CPB)管路行简单心脏手术时是否使用改良超滤(MUF)对体重≤5 kg先天性心脏病(先心病)婴儿的影响。方法:选取2018年1月至2020年6月在我院行CPB下简单心脏手术,体重≤5 kg先心病婴儿(手术年龄:18天~11个月)208例。其中,CPB中使用MUF的婴儿纳入MUF组(n=128);仅使用微小化管路合并常规超滤(CUF)的婴儿纳入CUF组(n=80)。比较两组婴儿术后不同时间点的血液学检测结果以及其他围术期资料。结果:CUF组的残余机血量和残余机血量/体重均显著高于MUF组;CUF组CPB中的红细胞压积(Hct)显著高于MUF组[(25.25±2.68)%vs.(24.47±3.82)%,P=0.000],而MUF组撤除CPB后的Hct显著高于CUF组[(30.88±4.51)%vs.(29.24±3.33)%,P=0.003];CUF组于心脏重症监护室早期血清乳酸浓度显著低于MUF组[入心脏重症监护室时:(1.59±0.60)mmol/L vs.(1.85±1.08)mmol/L,P=0.032;入心脏重症监护室后3 h:(1.31±0.61)mmol/L vs.(1.62±1.00)mmol/L,P=0.006],差异均有统计学意义。两组术后输血率和输血量差异均无统计学意义。结论:与MUF相比,CUF并未带来不良影响,还能简化管路和操作,可安全用于婴儿CPB手术。