Relationship of human adenoviruses 12, 18, and 31 as determined by hemagglutination inhibition.

Adenoviruses 12 and 31, but not Ad18, agglutinate rat blood cells at high titer, providing suitable blood cells be available and a prolonged contact period of virus with the erythrocytes is allowed. Purified virus particles show direct, and virus-free supernatants show direct and indirect, hemagglutination, ie, enhancement of HA by heterologous antiserum. Hemagglutination inhibition with rabbit antisera shows cross-reactions between Ad12 and Ad31 with titers 4--32 times lower than with homologous antigens; Ad18 antisera react with antigens from both of the other serotypes. No cross-reactions were seen with antisera from other adenoviruses. This suggests an antigenic relationship of the three viruses of subgroup IV in their fiber antigen gamma, in addition to the known relation in the hexon (epsilon), which is apparent in cross-neutralization.     

抗A1试剂血清的研制

目的 :ABO亚型在临床输血中经常造成错定血型及输血反应 ,因而研制抗A1试剂血清是解决ABO亚型鉴定的主要途径。方法 :采用血型血清学特异性抗原抗体吸收实验。结果 :经大量反复实验 ,研制出特异性强 ,效价符合要求的抗A1试剂血清。结论 :抗A1血清是鉴定A亚型的专用试剂血清 ,对临床鉴定ABO亚型及安全输血有实用意义。     

槐耳颗粒对胸部恶性肿瘤病人术后免疫功能的影响

目的：观察槐耳颗粒（金克）对胸部恶性肿瘤病人术后细胞免疫功能的影响，探讨胸部恶性肿瘤病人后辅以槐耳颗粒治疗的临床意义。方法：选取33例胸部恶性肿瘤病人，术后用槐耳颗粒治疗1个疗程（12周），监测其T细胞亚群CD3、CD4、CD8及CD4／CD8比值的变化，并对照20例胸部良性疾病的T细胞亚群监测结果进行比较。结果：胸部良，恶性疾病手术后细胞免疫功能与正常水平相比均显著下降，经槐耳颗粒治疗后恶性肿瘤病人的细胞免疫功能恢复到相对正常水平，结论：槐耳颗粒可改善胸部恶性肿瘤病人术后的细胞免疫功能。     

抗瘤增效方联合吉非替尼治疗老年非小细胞肺癌患者及对炎症因子,T细胞亚群水平及血清肿瘤标志物的影响

目的:探讨抗瘤增效方联合吉非替尼治疗老年非小细胞肺癌及对患者炎症因子,T细胞亚群水平及血清肿瘤标志物影响。方法:选取郑州大学附属肿瘤医院肿瘤内科非小细胞肺癌Ⅳ期老年患者84例,患者或家属签字同意,积极配合此次研究,按随机数字表法分组,对照组患者(42例)予以单纯吉非替尼治疗,研究组患者(42例)予以吉非替尼联合抗瘤增效方治疗,观察并记录所有患者治疗前后生存质量、炎症因子及T细胞亚群水平,同时对比临床疗效及不良反应状况。结果:对照组有效率低于研究组(P0.05);与治疗前比较,两组患者治疗后生存质量、炎症因子及T细胞亚群水平均发生变化,研究组治疗后躯体功能,角色功能,社会功能,情绪功能评分高于对照组,研究组治疗后白细胞介素-2(interleukin-2,IL-2),白细胞介素-12(interleukin-12,IL-12)和γ-干扰素(interferon-γ,IFN-γ)水平高于对照组,研究组治疗后CD8+水平低于对照组,CD4+及CD4+/CD8+水平高于对照组(P0.05);治疗后,对照组血管内皮生长因子(vascular endothelial growth factor,VEGF)升高,治疗组VEGF下降(P0.05);与治疗前比较,两组患者癌胚抗原(carcinoembryonic antigen,CEA),糖抗原(carbohydrate antigen-125,CA125)及细胞角蛋白19片段21-1(cytokeratin 19 fragments,CYFRA21-1)差异无统计学意义,组间比较差异无统计学意义;两组患者不良反应较轻,无药物不良反应。结论:抗瘤增效方联合吉非替尼治疗老年非小细胞肺癌疗效确切,能提高生活质量及免疫功能。     

Simple renal cyst as an independent risk factor for hypertension

A simple renal cyst (SRC) may increase the risk for hypertension. The authors examined the relationship between a SRC and hypertension in participants receiving physical examinations at Hebei Medical University. This study enrolled 66 883 participants who received physical examinations at our center from January 2012 to December 2017. Demographic data, medical history related to hypertension, hematological indexes, hypertension, and SRC subtype based on ultrasound examinations were examined. The relationship between SRC and hypertension was analyzed using univariate and multivariate logistic regression analysis in different models. Subgroup analysis and propensity score (PS) matching were also performed. Based on SRC subtype (unitary vs. multiple, small vs. large, unilateral vs. bilateral), a comprehensive scoring system was established to determine the effect of SRC load on hypertension. The results of univariate and multivariate analysis indicated that SRC was a risk factor for hypertension (P < .01). Subgroup and interaction analysis showed the homogeneity that SRC was an independent risk factor for hypertension in multiple subgroups (P > .05). A SRC remained an independent risk factor for hypertension after PS matching (P < .01). Based on a scoring system that considered different SRC subtypes, the risk for hypertension increased with renal cyst load (P < .01). In conclusions, a SRC was an independent risk factor for hypertension, and there was a positive correlation between SRC load and hypertension. The risk of hypertension increased gradually with the size, number, and location of a SRC. Careful follow‐up or excision should be considered for patients with SRCs.     

白血病患者化疗后应用白介素Ⅱ对T淋巴细胞亚群的影响

目的探讨白血病患者化疗后应用白介素Ⅱ治疗对细胞免疫功能的影响及其临床意义。方法分为化疗加白介素Ⅱ组（治疗组）和单纯化疗组（对照组）,治疗组于化疗后每天加用白介素Ⅱ40万U静脉滴注,连用14d,检测化疗前及治疗后T淋巴细胞亚群的变化。结果治疗组化疗14d后CD3、CD4、CD56、CD4／CD。比值明显高于本组化疗前及对照组化疗后水平。结论化疗后应用白介素Ⅱ能明显提高患者T淋巴细胞亚群的水平,对提高机体的免疫功能有积极的意义。     

脑梗死患者T淋巴细胞亚群监测及其临床意义的研究

目的探讨急性脑梗死患者T淋巴细胞亚群的动态变化及其临床意义。方法用流式细胞仪对32例急性脑梗死患者发病后第3、5、7、14天的外周血CD4+、CD8+T淋巴细胞进行动态检测。结果急性脑梗死患者发病后第3、5天外周血CD4+T淋巴细胞和CD4+/CD8+比值均较健康对照组低(均P<0.05),而第14天的CD4+T淋巴细胞和CD4+/CD8+比值与健康对照组相比差异无显著性意义(P>005)。结论急性脑梗死患者第3、5天的细胞免疫功能明显降低,第7天开始逐渐恢复,第14天基本恢复正常,提示急性脑梗死后预防感染的重点时期是发病后2周内。     

虫草多糖调节小鼠T淋巴细胞及其亚群数量的机制研究

目的 研究冬虫夏草菌丝体多糖（虫草多糖）对正常小鼠T淋巴细胞及其亚群数量的影响及可能的机制。方法 ICR小鼠,随机分成空白对照组、阳性组（香菇多糖1 mg·kg^-1）和虫草多糖高、中、低剂量（200,100,50 mg·kg^-1）组,连续腹腔注射10 d后,流式细胞仪检测外周血T淋巴细胞（CD³⁺细胞）及其亚群细胞CD4⁺CD8^-和CD4-CD8+数量、CD³⁺细胞凋亡率;MTT法测定小鼠脾淋巴细胞转化功能;实时荧光定量PCR检测脾脏组织Bcl-2 mRNA、Bax mRNA的转录水平,并测定胸腺和脾脏指数。结果 与空白对照组比较,虫草多糖能提高小鼠脾脏质量、促进未经ConA诱导的脾淋巴细胞增殖转化能力,并呈现剂量依赖性;虫草多糖高剂量组能明显增加外周血CD³⁺细胞和CD4⁺CD8^-细胞亚群的数量,降低CD4^-CD8⁺细胞亚群数量,显著提高CD4⁺CD8^-/CD4-CD8⁺的比值;高剂量虫草多糖能明显降低小鼠外周血CD³⁺细胞凋亡率,显著升高脾组织Bcl-2 mRNA转录水平和Bcl-2/Bax比值,而对Bax mRNA转录水平没有明显影响。结论 虫草多糖可刺激小鼠主要免疫器官（胸腺和脾脏）增生,提高T淋巴细胞及CD4^-CD8⁺亚群的数量,其作用机制可能与上调抑制凋亡基因Bcl-2 mRNA的转录,提高Bcl-2/Bax比值,从而抑制淋巴细胞凋亡有关。     

清热解毒方剂联合125I粒子植入治疗局限中晚期NSCLC疗效及对T细胞亚群和血清CEA等因子的影响

目的:观察清热解毒方剂联合125I粒子植入治疗局限中晚期非小细胞肺癌（non-small cell lung carcinoma,NSCLC）的疗效及对T细胞亚群和血清癌胚抗原（CEA）、细胞角蛋白19片段（CYFRA21-1）、NK细胞、Karnofsky（KPS）评分的影响。方法:将100例晚期NSCLC患者随机分为2组,对照组50例给予125I粒子植入治疗,研究组50例给予清热解毒方剂联合125I粒子植入治疗。比较两组治疗后临床疗效,统计两组治疗前后T细胞亚群、血清CEA、CYFRA21-1、NK细胞、KPS评分变化情况。结果:研究组治疗后临床总有效率为62.00%,显著优于对照组40.00%（P＜0.05）;研究组和对照组治疗后CD3+、CD4+和CD4+/CD8+水平、NK细胞活性以及KPS评分均较治疗前显著上升（P＜0.05）,且研究组均较对照组升高幅度更明显（P＜0.05）;研究组和对照组治疗后CD8+和血清CEA、CYFRA21-1水平均较治疗前显著下降（P＜0.05）,且研究组均较对照组降低幅度更明显（P＜0.05）。结论:清热解毒方剂联合125I粒子植入治疗局限中晚期NSCLC,疗效显著,同时能明显改善T细胞亚群水平和NK细胞活性,降低血清CEA、CYFRA21-1含量。