APP17肽对卵巢去势大鼠海马神经元凋亡相关因子表达的影响

为研究卵巢去势大鼠海马神经元内凋亡相关因子Fas、Fas L、NFκB、c fos、c Jun的表达及APP1 7肽对这些因子表达的影响 ,将健康雌性Wistar大鼠行双侧卵巢切除手术造模 ,并用APP1 7肽治疗 ,分别用免疫组化方法观察Fas、Fas L、NFκB、c fos、c Jun的表达 ,用TUNEL方法检测神经元的凋亡。结果发现 :卵巢去势大鼠海马神经元Fas、Fas L、c fos、c Jun的表达增高 ,而NFκB的表达则减少 ;使用APP1 7肽治疗后 ,上述蛋白质的表达恢复到正常水平 ,TUNEL检测未发现凋亡神经元。提示卵巢去势大鼠发生了海马神经元的凋亡相关蛋白的改变 ,可能是神经元处于凋亡前状态 ;APP1 7肽可改善卵巢去势大鼠海马神经元内凋亡相关蛋白的表达 ,维持神经元的正常功能     

三氧化二砷诱导肺癌细胞凋亡及对细胞周期的影响

目的 :探讨三氧化二砷 (As2 O3 )对人肺癌细胞株 (Spc- A1)诱导凋亡的机制 ,为抗肿瘤药物的筛选和用药方式提供理论依据。方法 :体外培养 Spc- A1细胞株与不同浓度的 As2 O3 进行作用 ,应用 MTT比色法、流式细胞仪技术、电子显微镜技术观察细胞增殖率、细胞周期率、细胞凋亡率及亚细胞水平变化。结果 :As2 O3 能够抑制 Spc- A1细胞的增殖 ,且呈时间剂量依赖性 ,Spc- A1细胞凋亡率与药物浓度和时间呈依赖关系。电镜观察细胞线粒体肿胀、空泡 ,染色质浓缩、核碎裂。结论 :As2 O3 可诱导 Spc- A1细胞凋亡 ,细胞周期延长 ,线粒体变性。     

Determination of CD_(30) Expression on Peripheral Blood T Lymphocyte Subsets in Patients with Hemorrhagic Fever with Renal Syndrome by FCM

Hantavirus can cause panphilic infection in hu-man beings and proliferate especially in such impor-tantimmune organs and cells,as liver,spleen,bonemarrow,lymph nodes,thymus,lymphocyte and soon,thusresulting in immunity disturbance.CD30 is atransmembrane glycoprotein,belonging to the TNF/NGF receptor superfamily.In recent years,the bio-logical significance of CD30 elicited greatconcern.Theclose relationship between the expression of CD30antigen and theactivation and function of T cellssug-…     

血浆内皮素和心钠素与维持性血液透析患者高血压关系的研究

目的：探讨血浆瓦皮素（ET）和心钠素（ANP）在维持性血液透析患者高血压中的作用。方法：尿毒症患者分为维持性血液透析不使用促红细胞生成素（EPO）组、维持性血液透析使用EPO组及尿毒辣症非透析组,以上3组各自分为高血压组和高血压正常组,另设健康对照组。应用放射免疫法检测血浆ET－1和ANP水平。结果：所有尿毒症患者血浆ET－1和ANP水平均高于健康对照组,维持血液透析使用EPO组血浆ET－1和ANP水平高于维持特性血液透不使用EPO组（P＜0．05）;各组中高血压亚组的血压ET－1水平及ET－1／ANP比值均高于其相应的患者的高血压同 浆ET－1水平井高升以及ET－1和ANP比值的增大有密切关系。     

Deregulated microRNA-22-3p in patients with sepsis-induced acute kidney injury serves as a new biomarker to predict disease occurrence and 28-day survival outcomes

Background

Acute kidney injury (AKI) is a common and serious complication of sepsis. MicroRNA-22-3p (miR-22-3p) has been found to be involved in septic AKI progression. The purpose of this study was to analyze both the serum and urinary expression of miR-22-3p in septic AKI patients, and evaluated the clinical value of miR-22-3p in the diagnosis and prognosis of sepsis-induced AKI.

Methods

Serum and urinary expression of miR-22-3p was examined using qRT-PCR. The risk factors related with septic AKI onset were assessed using logistic analysis. A receiver-operating characteristic (ROC) curve was constructed to evaluate the diagnostic performance of miR-22-3p, and the Kaplan–Meier survival curves and Cox regression analysis were used to evaluate the predictive value of miR-22-3p for the 28-day survival of septic AKI patients.

Results

Both serum and urinary miR-22-3p expression was decreased and negatively correlated with kidney injury biomarkers in septic AKI patients. MiR-22-3p expression was a risk factor for AKI onset and had diagnostic accuracy in septic AKI patients. The expression of both serum and urinary miR-22-3p was lower in patients who died, and served as a prognostic biomarker to predict 28-day survival in septic AKI patients.

Conclusion

Serum and urinary miR-22-3p was reduced in sepsis-induced AKI patients, and served as a biomarker to predict AKI occurrence and 28-day survival in sepsis patients.

     

Clinicopathological patterns of bladder carcinoma over 1 year: experience from University Hospital of Nepal

Purpose

To define the clinical and pathological patterns of urinary bladder carcinoma from the University Hospital of Nepal.

Methods

This is a retrospective analytical study. Patients with bladder mass who underwent surgery over 1 year and who had data record were included in the study. Demographic profile, type of surgery, findings on clinical examination, cystoscopy findings, histopathological report, tumor stage, and post-surgery adjuvant therapy were analyzed.

Results

Out of 86 patients who underwent transurethral resection of bladder tumor, 77 patients had biopsy-proven malignant bladder tumor. Urothelial cancer was present in 96.1%. Male were 78.6%. The mean age of diagnosis was 65.5?±?11.8 years. Non-muscle-invasive bladder cancer (NMIBC) was 3.7 times more common than muscle-invasive bladder cancer (MIBC). High-grade tumors (58.6%) were more common than low grade (41.4%). The detrusor muscle was present inthe biopsy specimen of 48 patients (64%). Re-TURBT within 2–6 weeks was considered based on histopathology reports for about half of the patients (45.3%). Upstaging and upgrading of the tumor was present in 5.8 and 5.8% of the patients, respectively. Residual tumor without upstaging and upgrading was present in 23.5%. One patient (1.3%) had Clavien–Dindo grade 1, three (4%) patients had grade 2 and two patients (2.7%) had grade 3b.

Conclusion

In the present study, patients with bladder cancer are younger than reported in other studies. Smokers are strongly predisposed. The histological pattern is similar to the Western and Asian populations. NMIBC and MIBC occur in proportion to that described as in other studies. We had a lower rate of recurrence, upstaging and upgrading. We had a lesser rate of acceptance for radical cystectomy in our patients.

     

腰椎过伸位MRI在腰椎管狭窄诊断中的临床应用

目的：通过腰椎过伸位MRI检查,研究腰椎过伸位下椎管狭窄程度的变化,评估腰椎过伸位MRI扫描对腰椎管狭窄的诊断价值。方法：2018年9月至2020年2月,纳入26例腰椎管狭窄进行腰椎中立位和过伸位MRI扫描,男11例,女15例;年龄43~85（64.00±10.37）岁。由于6例患者在过伸位下诱发并加重了腰腿痛症状,无法采集到合格的MRI数据,最终完成检查共采集到20例患者的合格数据,采用Mimics 21.0医学图像处理软件测量腰椎管狭窄的相关诊断参数,统计分析其变化规律,评价过伸位下腰椎管的狭窄程度和神经受压情况。结果：腰椎管矢径及横截面积不随体位发生明显变化;硬膜囊矢径、盘黄间隙在过伸位时均有不同程度变小。结论：对于腰椎管狭窄的影像学诊断,腰椎过伸位MRI扫描可较好地补充常规中立位MRI检查,对腰椎管狭窄程度的临床诊断更具敏感性。