米非司酮配伍米索前列醇及一次性宫颈扩张棒终止12至18周妊娠100例

目的：观察米非司酮配伍米索前列醇及一次性宫颈扩张棒终止12~18周妊娠的临床效果。方法选取自愿来医院要求引产的正常孕妇100例,孕周在12~18周,入院后第1,2天均给予口服米非司酮,第2天晨起放置一次性宫颈扩张棒,第3天晨起取出扩张棒后在阴道后穹窿处放置米索前列醇,观察终止妊娠的效果。结果成功98例,成功率为98.00%,其中24 h 内成功终止妊娠94例,成功率为94.00%;终止妊娠后清宫率为30.00%,且孕周越小完全流产率越高,出血量越少。结论米非司酮配伍米索前列醇及一次性宫颈扩张棒终止12~18周妊娠,成功率高,操作简单,不良反应较少,值得临床借鉴。     

三七总苷联合葛根黄酮治疗不稳定型心绞痛的机制探讨

目的观察三七总苷联合葛根黄酮对不稳定型心绞痛的治疗效果,并进一步探讨其可能的治疗机制。方法随机将64例不稳定型心绞痛患者分为2组,分别给予常规抗不稳定型心绞痛治疗（A组）及在常规治疗基础上添加三七总苷注射液静脉滴注及口服葛酮通络胶囊（B组）,治疗2周。观察2组临床疗效以及治疗前后血浆中纤溶酶原激活物（t-PA）及抑制物（PAI）、可溶性细胞间黏附分子-1（sICAM-1）、C反应蛋白（CRP）、基质金属蛋白酶-9、氧化型低密度脂蛋白（ox-LDL）的水平及超氧化物歧化酶（SOD）的活力变化并进行对比分析。结果 B组的临床疗效显著高于A组;B组的t-PA水平治疗后明显升高、PAI水平明显降低（P均〈0.05）,而A组t-PA、PAI治疗前后均无明显变化（P均〉0.05）;2组的SICAM-1、CRP及MMP-9水平治疗后均明显降低（P均〈0.05）,B组降低的幅度较A组更显著（P均〈0.05）;A组的ox-LDL治疗前后无明显变化,而B组治疗后水平明显降低（P〈0.05）;2组的SOD活力在治疗后均升高（P均〈0.05）,B组的升高幅度较A组更显著（P〈0.05）。结论三七总苷联合葛根黄酮治疗不稳定型心绞痛临床疗效肯定,其通过调节血脂、改善纤溶活性、减轻炎症反应及抗氧化等,从而降低冠状动脉事件的再发生率。     

盐酸氨溴索对老年肺炎祛痰作用疗效分析

目的评价盐酸氨溴索注射液对老年肺炎患者祛痰作用的临床疗效及安全性。方法将124例老年肺炎住院患者随机分成治疗组64例和对照组60例，治疗组使用左氧氟沙星注射液0．2g＋10％葡萄糖液（糖尿病患者用生理盐水）100mL，静脉滴注，2次／d；加用盐酸氨溴索注射液45mg，静脉注射，2次／d。对照组用左氧氟沙星注射液（用法同治疗组），加用必嗽平片16mg，口服，3次／d。疗程7～14d，2组均不同时使用其他抗生素，有基础疾病者按相应疾病常规治疗。结果治疗组对咳嗽的临床控制率＋显效率（31％＋38％）明显高于对照组（15％＋20％），有极显著性差异（P〈0．01）；对痰性状的改变及肺部哆音的改变2组间无显著性差异（P〉0．05）。治疗组盐酸氨溴索注射液的主要不良反应为胃部灼热，治疗过程中有6例出现，发生率为9％，患者能耐受，未作特殊处理。对照组必嗽平片治疗过程中有7例出现胃部不适，表现为上腹胀痛，恶心、欲呕，发生率为12％，经服用西咪替丁片后好转，未中断治疗。结论盐酸氨溴索注射液对老年肺炎患者祛痰效果显著，是一种安全、经济、有效的祛痰药物。     

岭南名医黎庇留医案学术思想初探

通过对岭南名医黎庇留医案的整理、研究,探讨其学术特点。黎氏临证善用四逆、真武汤,活用经方治疗疑难重症,运用经方升麻鳖甲汤防治鼠疫,在伤寒学上造诣很深。     

PLS-DA结合熵权TOPSIS法综合评价不同产地苍耳子

目的 综合评价不同产地苍耳子的质量。方法 采用HPLC法测定不同产地苍耳子中羧基苍术苷、苍术苷、新绿原酸、绿原酸、隐绿原酸、噻嗪双酮苷、1,5-二咖啡酰奎宁酸、3,4-二咖啡酰奎宁酸、3,5-二咖啡酰奎宁酸和4,5-二咖啡酰奎宁酸,采用偏最小二乘判别分析（PLS-DA）和熵权优劣解距离法（EW-TOPSIS）法综合分析测定结果,寻找引起苍耳子产品质量的主要差异性物质,评价不同产地苍耳子质量的优劣。结果 10种成分在各自范围内线性关系良好;绿原酸、1,5-二咖啡酰奎宁酸、3,5-二咖啡酰奎宁酸、羧基苍术苷和新绿原酸是影响苍耳子产品质量的主要潜在标志物;EW-TOPSIS法分析结果显示江苏和山东产的苍耳子质量优。结论 建立的HPLC法操作便捷、结果准确,结合PLS-DA、EW-TOPSIS法可综合评价不同产地苍耳子的质量。     

Point-of-Care Tests for Rapid Detection of Porcine Epidemic Diarrhea Virus: A Systematic Review and Meta-Analysis

The timely and accurate diagnosis of porcine epidemic diarrhea virus (PEDV) infection is crucial to reduce the risk of viral transmission. Therefore, the objective of this review was to evaluate the overall diagnostic accuracy of rapid point-of-care tests (POCTs) for PEDV. Studies published before 7 January 2022 were identified by searching PubMed, EMBASE, Springer Link, and Web of Science databases, using subject headings or keywords related to point of care and rapid test diagnostic for PEDV and PED. Two investigators independently extracted data, rated risk of bias, and assessed the quality using the Quality Assessment of Diagnostic Accuracy Studies-2 tool. The bivariate model and the hierarchical summary receiver operating characteristic (HSROC) model were used for performing the meta-analysis. Threshold effect, subgroup analysis, and meta-regression were applied to explore heterogeneity. Of the 2908 records identified, 24 eligible studies involving 3264 specimens were enrolled in the meta-analysis, including 11 studies on evaluation of lateral flow immunochromatography assay (ICA)-based, and 13 on nucleic acid isothermal amplification (NAIA)-based POCTs. The overall pooled sensitivity, specificity and diagnostic odds ratio (DOR) were 0.95 (95% CI: 0.92–0.97), 0.96 (95% CI 0.88–0.99) and 480 (95% CI 111–2074), respectively; for ICA-based POCTs and the corresponding values for NAIA-based, POCTs were 0.97 (95% CI 0.94–0.99), 0.98 (95% CI 0.91–0.99) and 1517 (95% CI 290–7943), respectively. The two tests showed highly comparable and satisfactory diagnostic performance in clinical utility. These results support current recommendations for the use of rapid POC tests when PEDV is suspected.     

A Systematic Review and Meta-Analysis of the Inhibitory Effects of Plant-Derived Sterilants on Rodent Population Abundance

Owing to their low minimal environmental risk and other ethical considerations, plant-derived sterilants are used to control rodent populations. However, the effects of plant-derived sterilants are not immediate, and their efficacy on rodent control is controversial, which negatively affects sterilant research and application. Here, a meta-analysis of the available literature was conducted to evaluate the effects of two plant-derived sterilants, triptolide and curcumol, on rodent populations. Using a random-effects and a fixed-effects model, we calculated the weighted mean difference (WMD) and relative risk (RR) and their corresponding 95% confidence intervals (95% CIs). After the application of plant-derived sterilants, the rodent population density tended to decrease. Three outcome-related measures in rodents, i.e., capture rate (RR = 0.31, 95% CI [0.20, 0.47]), pregnancy rate (RR = 0.49, 95% CI [0.40, 0.61]), and sperm survival rate (WMD = −17.53, 95% CI [−28.96, −6.06]), significantly decreased, as shown by a significant reduction of ovarian, uterine, and testicular organ coefficients. However, the number of effective rodent holes did not change significantly after the interventions, indicating that the studied sterilants did not directly eradicate the rodent populations. This study provides a theoretical basis for elucidating the inhibitory mechanisms of plant-derived sterilants on rodent populations and for the rational use of these sterilants.     

Corrosion Behavior of Alx(CrFeNi)1−x HEA under Simulated PWR Primary Water

High-entropy alloys (HEAs) have great potential as accident-tolerant fuel (ATF) cladding. Aluminum-forming duplex (BCC and FCC) stainless-steel (ADSS) is a candidate for ATF cladding, but the multiphase composition is detrimental to its corrosion resistance. In this paper, two single-phase HEAs were prepared by adjusting the content of each element in the ADSS alloy. The two HEAs were designed as Al_0.05(CrFeNi)_0.95(FCC) and Al_0.25(FeCrNi)_0.75(BCC). Their corrosion behavior under simulated pressurized water reactor (PWR) primary water was investigated. The corrosion products and corrosion mechanisms of these two HEAs were explored. The results show that the corrosion resistance of HEA alloys containing FCC is better than that of BCC and ADSS alloys. At the same time, the reason why the BCC structure composed of these four elements is not resistant to corrosion is revealed.     

Epidemiology of Mosquito-Borne Viruses in Egypt: A Systematic Review

There are at least five common mosquito-borne viruses (MBVs) recorded in Egypt, including dengue virus (DENV), Rift Valley fever virus (RVFV), West Nile virus (WNV), Chikungunya virus, and Sindbis virus. Unexpected outbreaks caused by MBVs reflect the deficiencies of the MBV surveillance system in Egypt. This systematic review characterized the epidemiology of MBV prevalence in Egypt. Human, animal, and vector prevalence studies on MBVs in Egypt were retrieved from Web of Science, PubMed, and Bing Scholar, and 33 eligible studies were included for further analyses. The monophyletic characterization of the RVFV and WNV strains found in Egypt, which spans about half a century, suggests that both RVFV and WNV are widely transmitted in this nation. Moreover, the seropositive rates of DENV and WNV in hosts were on the rise in recent years, and spillover events of DENV and WNV to other countries from Egypt have been recorded. The common drawback for surveillance of MBVs in Egypt is the lack of seroprevalence studies on MBVs, especially in this century. It is necessary to evaluate endemic transmission risk, establish an early warning system for MBVs, and develop a sound joint system for medical care and public health for managing MBVs in Egypt.     

白蛋白紫杉醇联合铂类化疗方案治疗进展期食管癌的临床研究

目的 观察白蛋白紫杉醇联合铂类化疗方案治疗进展期食管癌的临床疗效。方法 选择2020年7月—2021年3月在河北北方学院附属第一医院治疗的62例进展期食管癌患者,按照随机数字表法分为对照组（31例）和治疗组（31例）。对照组采取调强放疗联合含铂类化疗方案,临床靶区总剂量54 Gy,1.8 Gy/次,肿瘤靶区总剂量63 Gy,2.1 Gy/次,5次/周,连续治疗6周;同时第1～3天静脉滴注注射用奈达铂,80 mg/m2加入生理盐水100 mL。治疗组在对照组基础上静脉滴注注射用紫杉醇（白蛋白结合型）,第1、8天给药,260 mg/m2加入100 mL生理盐水。3周为1个周期,两组患者共治疗2个周期。观察两组患者临床疗效,比较治疗前后两组患者临床疗效和生存率,β-连环蛋白（β-catenin）、细胞周期蛋白D1(CCND1)、食管癌相关基因4(ECRG4)、10号染色体缺失的磷酸酶和张力蛋白同源基因（PTEN）、肿瘤相关细胞角蛋白19片段（CYFRA21-1）、癌胚抗原（CEA）、鳞状细胞癌抗原（SCC-Ag）、血红素氧合酶-1(HO-1)、血管内皮生长因子C(VEGF-C)、基质金属蛋白...