Development a nomogram to predict fertilisation rate of infertile males with borderline semen by using semen parameters combined with AMH and INHB

The sperm quality of some males is in a critical state, making it hard for clinicians to choose the suitable fertilisation methods. This study aimed to develop an intelligent nomogram for predicting fertilisation rate of infertile males with borderline semen. 160 males underwent in vitro fertilisation (IVF), 58 of whom received rescue ICSI (R-ICSI) due to fertilisation failure (fertilisation rate of IVF ≤30%). A least absolute shrinkage and selection operator (LASSO) regression analysis identified sperm concentration, progressively motile spermatozoa (PMS), seminal plasma anti-Müllerian hormone (spAMH), seminal plasma inhibin (spINHB), serum AMH (serAMH) and serum INHB (serINHB) as significant predictors. The nomogram was plotted by multivariable logistic regression. This nomogram-illustrated model showed good discrimination, calibration and clinical value. The area under the receiver operating characteristic curve (AUC) of the nomogram was 0.762 (p < .001). Calibration curve and Hosmer–Lemeshow test (p = .5261) showed good consistency between the predictions of the nomogram and the actual observations, and decision curve analysis showed that the nomogram was clinically useful. This nomogram may be useful in predicting fertilisation rate, mainly focused on new biomarkers, INHB and AMH. It could assist clinicians and laboratory technicians select appropriate fertilisation methods (IVF or ICSI) for male patients with borderline semen.     

颅内破裂动脉瘤栓塞术后并发脑疝的危险因素分析

目的 探讨颅内破裂动脉瘤血管内栓塞术后发生脑疝的危险因素及预后。方法 回顾性分析2017年5月至2019年5月行血管内治疗的303例颅内破裂动脉瘤的临床资料。结果 26例术后发生脑疝,脑疝发生率为8.58%。多因素logistic回归分析显示入院WFNS分级Ⅳ～Ⅴ级、动脉瘤再次破裂、脑水肿是术后发生脑疝的独立危险因素（P<0.05）。ROC曲线分析显示,对于预测术后发生脑疝的效能：入院WFNS分级Ⅳ～Ⅴ级的曲线下面积（AUC）为0.734(95%CI 0.639～0.829;P<0.001),动脉瘤再破裂的AUC为0.632(95%CI 0.504～0.760;P=0.026),脑水肿的AUC为0.826(95%CI 0.723～0.928;P<0.001);入院WFNS分级Ⅳ～Ⅴ级+动脉瘤再次破裂+脑水肿的AUC为0.897(95%CI 0.819～0.974;P<0.001)。26例脑疝中,8例去骨瓣减压术治疗（4例出院时死亡;4例存活,随访1年,预后良好2例,预后不良2例）,18例未行去骨瓣减压术均死亡。26例脑疝病死率为84.62%。结论 颅内破裂动脉瘤...     

一测多评法测定决明子中蒽醌苷元类和萘并吡喃酮苷类有效成分含量

目的建立决明子中蒽醌苷元类和萘并吡喃酮苷类有效成分含量的一测多评法。方法采用Sunfire C18色谱柱(4.6mm×250 mm,5μm),柱温30℃,乙腈-0.1%磷酸水溶液梯度洗脱,检测波长278 nm和284 nm,测定橙黄决明素与红镰霉素龙胆二糖苷、大黄酚和大黄素甲醚间的相对校正因子,并考察其重现性,比较计算值与测得值的差异。结果红镰霉素龙胆二糖苷、橙黄决明素、大黄酚和大黄素甲醚分别在:0.0503~1.5078、0.3197~9.5899、0.5070~15.2108、0.4027~12.0814μg范围呈良好线性;回归方程分别为:Y=4.95X+2.01(R2=0.9998)、Y=1.03X+0.03(R2=0.9999)、Y=3.98X-0.12(R2=0.9993)、Y=4.81X+0.26(R2=0.9996);用一测多评法对6批决明子中大红镰霉素龙胆二糖苷、大黄酚和大黄素甲醚进行测定,与外标法实测值基本一致。结论该方法可靠,结果准确,可用于决明子的质量控制。     

氧化苦参碱抑制异丙肾上腺素诱导大鼠慢性心力衰竭及对ADMA代谢通路的影响

目的：探讨氧化苦参碱抑制异丙肾上腺素（ISO）诱导大鼠慢性心力衰竭及其对非对称二甲基精氨酸（ADMA）代谢通路的影响。 方法：雄性Sprague-Dawley大鼠,皮下注射ISO 5 mg·kg^-1·d^-1,连续给药7 d诱发大鼠慢性心力衰竭。氧化苦参碱（100,50 mg·kg^-1）于ISO注射前7 d灌胃给药,共14 d。检测血清学指标、心功能血流动力学参数、心脏质量,并观察心肌组织病理变化,同时采用Western blotting法测定相关蛋白的表达。 结果：氧化苦参碱（100,50 mg·kg^-1）可显著降低ISO诱导的心力衰竭大鼠升高的血清心肌肌钙蛋白I（cTn I）水平,改善左心室收缩和舒张功能及左心室重构,显著减轻ISO致大鼠心肌的病理学改变。还可降低ISO诱导心力衰竭大鼠血清ADMA含量（P<0.01）,增加心室肌组织中二甲基二甲胺水解酶2（DDAH2）蛋白的表达（P<0.01）,但对ISO诱导升高的蛋白精氨酸甲基转移酶1（PRMT1）无影响。 结论：氧化苦参碱可改善ISO诱导的慢性心力衰竭大鼠的心功能,抑制心室重构,其作用机制与降低血清ADMA水平和增高心肌组织DDAH2表达水平有关。     

Association Between a Body Shape Index and Subclinical Carotid Atherosclerosis in Population Free of Cardiovascular and Cerebrovascular Diseases

Aim: We used a dataset from a cross-sectional survey conducted in China to determine which of the anthropometric indices of obesity are important in terms of carotid atherosclerosis free of cardiovascular and cerebrovascular diseases. Methods: A total of 5,245 participants who were volunteering for carotid ultrasound unit in this cross-sectional survey were included in the present analysis. All subjects were free of angina, myocardial infarction, heart failure and stroke, and cancer. A low-risk subgroup was defined as people free of hypertension, diabetes, and hyperlipidemia. All analyses based on logistic regression were gender-specific. Results: The present study consisted of 2,501 males and 2,744 females, with 776 (31.03%) diagnosed as carotid artery plaque in males and 550 (20.04%) in females. Univariable analyses in unadjusted logistic model showed significant associations between disease presence and all central obesity indices. After adjusting for more variables, only a body shape index (ABSI) was associated with the presence of disease in both males and females. Moreover, stepwise regression approaches revealed that ABSI was always an independent determinant of the presence of subclinical carotid plaque. Multiple regression shows a linear and significant increase in the prevalence of atherosclerosis in males and females as ABSI decile levels increased. Similar results were obtained when the association between ABSI and carotid plaque was studied in this low-risk subgroup. Conclusions: ABSI, as a novel anthropometric indicator compared with traditional indices, was found to have a closer relationship with subclinical carotid atherosclerosis, even in populations free of hypertension, diabetes, and hyperlipidemia.     

血红素加氧酶1对实验性肝硬化内毒素血症大鼠肝功能的影响

目的 探讨血红素加氧酶1(HO-1)在实验性肝硬化内毒素血症大鼠中的作用.方法 80只大鼠均分为4组:对照组为正常大鼠+脂多糖(LPS);其余3组用硫代乙酰胺(TAA)诱导大鼠肝硬化模型后,TAA组腹腔内注射生理盐水,TAA+LPS组注射LPS,HM组注射氯化高铁血红素+LPS.造模后检测AST和ALT.结果 与对照组比较,其余3组血浆中ALT和AST水平均明显升高(P＜0.05),且HM组＞TAA+ LPS组＞TAA组.结论 HO-1通过其氧化损伤和促纤维化,促进大鼠肝硬化内毒素血症时肝损害.     

RP-HPLC法测定北虫草发酵培养物中虫草素的含量

目的:建立测定北虫草发酵培养物中虫草素含量的方法。方法:采用反相高效液相色谱法。色谱柱为DIAMONSIL-C18(250mm×4.6mm,5μm),流动相为乙腈-水-甲醇(5∶90∶5),流速为0.8mL·min-1,柱温为40℃,检测波长为259nm。结果:虫草素检测浓度在2.56～51.20μg·mL-1范围内与峰面积积分值呈良好的线性关系(r=0.9998);平均回收率为98.35%,RSD=2.71%(n=6)。结论:本方法灵敏、快速、准确,适用于北虫草发酵培养物中虫草素的检测。     

原发性肝癌中AnnexinA2和P19的表达及意义

目的检测AnnexinA2和P19在原发性肝癌中的表达并探讨其在肝癌发生发展及转移中的作用。方法原发性肝癌62例,分别取癌组织及癌旁肝组织,采用IHC、RT-PCR及Western blot法分别检测AnnexinA2和P19 mRNA及蛋白的表达。结果肝癌组织中AnnexinA2 mRNA及蛋白表达量均明显高于癌旁肝组织（P〈0.05）,肝癌组织中P19 mRNA及蛋白表达量均明显低于癌旁肝组织（P〈0.05）;AnnexinA2、P19阳性表达与肝癌患者的性别、年龄和肿瘤大小均无关（P〉0.05）,而与乙肝表面抗原、组织分级和脉管内有无癌栓均有关（P〈0.05）。结论联合检测AnnexinA2、P19 mRNA及蛋白在原发性肝癌中的表达水平,对判断其发生和转移有重要价值,可为临床治疗和判断预后提供依据。     

保留肋间臂神经在乳腺癌手术中的应用及临床价值

目的 探讨及验证乳腺癌腋窝淋巴结清扫术中保留肋间臂神经的方法和临床价值.方法 选择68例Ⅰ、Ⅱ期乳腺癌患者,分为2组,即保留组（31例）行乳腺癌腋窝淋巴结切除术时保留肋间臂神经,切断组（37例）行常规手术时切除肋间臂神经,对2组进行观察随访.结果 保留组及切断组术后患侧发生上肢感觉障碍的发生率分别为9.7%（3/31）及73%（27/37）,差异有统计学意义（P＜0.05）,经24个月随访均未发生肿瘤局部复发.结论 早期乳腺癌行腋窝淋巴结清扫术保留肋间臂神经可以明显减少术后患侧上肢感觉障碍.