Typical and partial cat eye syndrome: identification of the marker chromosome by FISH

Three children are reported with typical cat eye syndrome (CES) and three more children with partial CES because of absence of coloboma, in which the supernumerary marker chromosome was studied by FISH. Using a genomic library, and also a centromeric and particularly a cosmid probe of 22q11, partial tetrasomy was shown in all cases.     

骨肿瘤患者mIL-2R表达和血清sIL-2R水平的观察及临床意义的研究

本实验观察28例恶性骨肿瘤(骨肉瘤14例,软骨肉瘤5例),转移性骨癌4例,,其它5例,及15例良性骨肿患者PBMC 经PHA 刺激后的mIL-2R 表达和血清sIL-2R 水平,设健康对照组15例。实验结果:1.恶性骨肿瘤患者mIL-2R 表达显著降低,在各类型之间则无明显差异;2.恶性骨肿瘤患者sIL-2R水平显著升高,在转移性骨癌明显高于其它类型;3.良性骨肿瘤患者mIL-2R 表达和slL-2R 水平与对照组比较均无明显差异;4.骨肿瘤患者mIL-2R 表达和sIL-2R 水平之间无明确关系。表明mIL-2R 表达不足和sIL-2R 异常升高在恶性骨肿瘤患者机体免疫抑制机制中起重要作用,血清sIL-2R 水平和肿瘤转移及病情变化密切相关;提示sIL-2R 可作为骨肿瘤患者辅助诊断及病情监测的有效指标。     

Choleretic activity of 2-demethoxycarbonyl-2-ethoxycarbonyl-11-deoxymisoprostol on the model of CCl<Subscript>4</Subscript>-induced hepatitis

Therapeutic administration of 11-deoxymisoprostol had a hepatoprotective effect, which manifested in a decrease in the content of alanine transaminase and aspartate transaminase in blood plasma, and produced a choleretic effect in rats with CCl₄-induced toxic hepatitis. __________ Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 145, No. 2, pp. 183–184, February, 2008     

Identification of natural antibodies to interleukin-18 in the sera of normal humans and three nonhuman primate species

Natural antibodies to cytokines can be found in the sera of normal healthy individuals in the absence of specific immunostimulation. However, the function, impact, and purpose of natural antibody development have yet to be fully elucidated. Interleukin (IL)-18 is a cytokine that exerts proinflammatory activities and induces natural killer (NK) cell activity. Recombinant human IL-18 (rHuIL-18) is currently in development as a cancer immunotherapy. In this study, the presence of natural antibodies to IL-18 in the sera of normal humans and three nonhuman primate species was evaluated by electrochemiluminescence immunoassay (ECLIA). Of the human sera tested, 6 of 47 samples were positive for natural antibodies to IL-18. Of the nonhuman primate sera tested, 22 of 80 cynomolgus monkey samples, 4 of 31 rhesus monkey samples, and 2 of 20 chimpanzee samples were positive for natural antibodies to IL-18. Natural anti-IL-18 antibodies were neutralizing in 5 of 22 cynomolgus and 2 of 4 rhesus sera. None of the chimpanzee or human sera were able to neutralize IL-18 induction of interferon (IFN)-gamma in vitro. In vivo activity of rHuIL-18 was compared in IL-18 natural antibody-positive and -negative cynomolgus monkeys. The presence of natural antibodies to IL-18 did not alter rHuIL-18 systemic exposure levels, induction of neopterin, or induction of treatment-induced antibodies following intravenous administration of rHuIL-18. In conclusion, our data indicate that, as has been found with other cytokines, natural anti-IL-18 antibodies are relatively common. Moreover, natural anti-IL-18 antibodies do not appear to influence rHuIL-18 activity in vivo and are not predictive of a heightened immune response, suggesting that natural anti-IL-18 antibodies do not impact IL-18 therapy. Finally, our data suggest that the ability to detect natural anti-cytokine antibodies may be a useful measure of the adequacy of an assay for deployment in clinical trials.     

三七总皂苷对大鼠脑缺血再灌注损伤血清IL-8的影响

目的 :研究三七总皂苷对脑缺血再灌注损伤血清IL - 8的影响。方法 :线栓法制备大鼠大脑中动脉阻断 (middlecerebralarteryocclusion ,MCAO)局灶性脑缺血模型 ,缺血 2h ,再灌注 3h ,放免法测定血清IL - 8的含量。结果 :5 0mg/kg-1ip ,qd× 7d能降低大鼠脑缺血再灌注后血清IL - 8的含量。结论 :三七总皂苷通过降低大脑缺血再灌注后血清IL - 8的产生和释放 ,对脑缺血再灌注损伤有保护作用。     

烧伤后血清触珠蛋白对T淋巴细胞功能的影响

采用亲和层析法从烧伤血清纯化触珠蛋白（Ｈａｐｔｏｇｌｏｂｉｎ，ＨＰ）后，体外观察了纯化ＨＰ对正常小鼠胸腺细胞在ｃｏｎＡ刺激下增殖与ＩＬ－２产生及对ＩＬ－２诱导的ＩＬ－２依赖细胞株（ＣＴＬＬ－２）增殖的影响。结果表明，纯化ＨＰ在相当于烧伤血清ＨＰ浓度时，对小鼠胸腺细胞增殖、ＩＬ－２产生及ＣＴＬＬ－２增殖具有非常明显的抑制作用；但在相当于正常血清ＨＰ浓度时纯化ＨＰ则无抑制作用。提示烧伤血清高浓度的ＨＰ可能是烧伤后Ｔ淋巴细胞免疫功能低下的一个重要原因。     

Clonal proliferation of cyclin D1-positive mantle lymphocytes in an asymptomatic patient: an early-stage event in the development or an indolent form of a mantle cell lymphoma?

Mantle cell lymphoma (MCL) is a B-cell neoplasm with a relatively aggressive clinical course. There is a very small subgroup of patients who present with atypical lymphocytes in peripheral blood, with or without lymphocytosis, lymphadenopathy, or splenomegaly, and with an indolent clinical course. They frequently show mutated IgV(H) genes and CD5 negativity. We report an asymptomatic elderly patient who presented with a single submandibular lymphadenopathy. The biopsy showed immunophenotype and t(11;14)(q13;q32) consistent with MCL. The abnormal lymphoid population was also detected in peripheral blood and bone marrow. The patient has remained asymptomatic for 5 years without receiving any therapy. It is uncertain whether these cases represent an early-stage event in the development or an indolent form of MCL. The existence of such asymptomatic patients with an indolent clinical course should induce a strict clinical judgment in terms of therapeutic decisions.     

血清25-羟维生素D和白细胞介素-22对急性肺炎患儿病情的诊断价值

目的 探究血清25-羟维生素D[25(OH)D]和白细胞介素-22(IL-22)对急性肺炎患儿病情的诊断价值。方法 选取2021年3月至2022年3月自贡市第一人民医院收治的96例急性重症肺炎患儿作为重症肺炎组,另选96例普通肺炎患儿作为普通肺炎组、96例体检健康儿童作为健康对照组。采用化学发光微粒子免疫检测法检测血清25(OH)D水平,采用酶联免疫吸附法（ELISA）检测IL-22水平;采用Pearson法分析重症肺炎患儿血清25(OH)D、IL-22水平与急慢性健康状况评分Ⅱ（APACHEⅡ评分）、序贯器官衰竭评分（SOFA评分）的相关性;采用受试者工作特征（ROC）曲线评估25(OH)D、IL-22对重症肺炎患儿危重症的诊断价值。结果 重症肺炎患儿血清25(OH)D与APACHEⅡ评分及SOFA评分呈负相关（r=-0.521、-0.484,P<0.05）,血清IL-22与APACHEⅡ评分及SOFA评分呈负相关（r=-0.614、-0.419,P<0.05）。ROC曲线显示,25(OH)D对危重症诊断的曲线下面积（AUC）为0.745,IL-22对危重症诊断的AUC为...     

Interleukin-6 in bronchoalveolar lavage fluid from patients with COPD

目的　本研究通过检测支气管肺灌洗液 (BALF)中及肺泡巨噬细胞 (AM)产生的IL 6 ,揭示IL 6与慢性支气管炎(COPD)肺气肿发生的关系 ,为IL 6提供新的研究领域。方法　检测 6名正常无吸烟人及 2 1名COPD患者BALF中及AM释放的IL 6 ,根据正常人组BALF中IL 6的 95 %正常值可信区限 ,将COPD患者分为二组 ,在正常值可信区限内为第一组 ,在正常值可信区限外为第二组。结果　表明 2组中AM产生的IL 6第二组明显高于第一组 ,且 2组患者肺功能 (Dlco ,FEV1,FEV1/FVC和RV/TLC)有明显差异结论　AM产生的IL 6可能与COPD患者肺功能变化有关 ,在COPD患者肺气肿发生发展过程中发挥重要作用     

阴道炎患者HPV6/11-DNA定量分析

目的：了解女性阴道炎患者人乳头瘤病毒6／11型（HPV6／11）的感染情况。方法：荧光定量聚合酶链反应（FQ－PCR）技术检测258例门诊患者阴道分泌物中HPV6／11的病毒拷贝数。结果：共检出HPV6／11阳性者94例,阳性率36．43％,拷贝数在10^5以上者78例,占阳性者中82．98％,40岁以上年龄组阳性率高且病毒复制量均在10^5以上。结论：（1）中老年阴道炎患者就诊晚,感染重。（2）FQ－PCR检测HPV敏感,快速,准确,特别是其定量特点对临床很有意义。