ITP患者脾动脉栓塞前后血小板的检测及其临床意义

应用自动血细胞计数仪检测ＩＴＰ患者脾动脉栓塞前后不同时期血小板的变化。结果栓塞后患者血小板计数（ＰＬＴ）和平均血小板体积（ＭＰＶ）的变化呈负相关,但ＰＬＴ恢复正常后,ＭＰＶ仍高于正常。提示脾动脉栓塞后血小板计数增高的机理不同于激素治疗。     

停用雷公藤糖浆精子密度可复性调查

目的 分析服用及停用雷公藤糖浆后患者精子密度的变化及生育恢复情况。方法 采用ＷＨＯ的标准,对３３例服用雷公藤糖浆的强直性脊柱炎２的精液进行分析,并调查和随访其生育情况。结果 服药期间,３３例患者精液检查均 子密度为零或接近零的记录;停药１２０ｄ以上,精子密度均见显著提高;３３例雷公藤糖浆服用者中,１３例的妻子有孕育史。结论雷公藤糖浆可致男性精子密度降低至零,停药后可以恢复生育。     

冠心病患者内皮素前列环素白细胞白介素-2的变化及悦宁定的干预作用

通过对４５ 例冠心病（ＣＨＤ）患者外周血循环内皮素（ＥＴ）、前列环素（ＰＧＩ２）代谢产物６－酮类固醇－前列腺素Ｆ１ａ（６－ｋｅｔｏ－ＰＧＦ１ａ）和白细胞（Ｗ ＢＣ）、嗜中性粒细胞（ＰＭＮ）、白细胞介素－２（ＩＬ－２）的测定,以了解ＣＨＤ 患者内皮细胞（ＥＣ）的损伤及功能变化,并悦宁定（ｅｎａｌａｐｒｉｌ）治疗组与对照组比较。结果显示：ＣＨＤ 患者ＥＴ、ＷＢＣ、ＰＭＮ 明显高于正常;６－ｋｅｔｏ－ＰＧＦ１ａ则明显低于正常;ＩＬ－２在急性心肌梗塞（ＡＭＩ）早期明显低于正常,均与病情严重程度相一致。通过ｅｎａｌａｐｒｉｌ治疗后,上述指标明显改善,提示：ｅｎａｌａｐｒｉｌ对ＣＨＤ 患者ＶＥＣ损伤有较好的保护和治疗作用     

U-73122, an aminosteroid phospholipase C inhibitor, may also block Ca2+ influx through phospholipase C-independent mechanism in neutrophil activation

1-[6-[[17a-3-Methoxyestra-1,3,5(10)-trien17-yl]amino]hexyl]-1H-pyrrole-2,5-dione (U-73122) has been proven to be a useful tool in investigation of phospholipase C (PLC)-coupled signal transduction during cell activation. In the present studies, the inhibition by U-73122 of cytosolic free Ca²⁺ concentration ([Ca 2+]i) of neutrophils was investigated. U-73122 suppressed the [Ca²⁺]i elevation of neutrophils suspended in Ca²⁺-containing medium challenged by N-formyl-Met-Leu-Phe (fMLP), cyclopiazonic acid (CPA) and ionomycin. The concentrations of U-73122 required for inhibition of CPA- and ionomycin-induced changes with IC₅₀ values 4.06 ± 0.27 µM and 4.04 ± 0.44 µM, respectively, is almost 10-times that required for inhibition of the fMLP-induced response (IC₅₀ value 0.62 ± 0.04 µM) U-73122 also reduced the intracellular Ca²⁺ mobilization of neutrophils suspended in Ca ²⁺-free medium stimulated by fMLP and CPA, but not by ionomycin, with IC₅₀ values 0.52 ± 0.02 µM and 6.82 ± 0.74 µM, respectively. 1-[6-[[17f3-Methoxyestra-1,3,5(10)-trien-l7-yl]amino]hexyl]2,5-pyrrolidinedione (U-73343), a close analog of U-73122 that does not inhibit PLC activity, suppressed the [Ca²⁺]_i elevation of neutrophils challenged by fMLP in Ca²⁺-containing medium, but not in Ca²⁺-free medium, with IC₅₀ value 22.30 ± 1.61 µM. In Mn²⁺-quench studies, U-73122 suppressed the Mn²⁺ influx in CPA-activated neutrophils (IC₅₀ value was 7.16 ± 0.28 µM) as well as in resting neutrophils (IC₅₀ value was 6.72 ± 0.30 M). U-73343 also suppressed the Mn²⁺ influx in resting neutrophils in a concentration-dependent manner. These results suggest that the inhibitory effect of U-73122 on [Ca²⁺]i of activated neutrophils is attributed partly to the suppression of Ca²⁺ release from the intracellular Ca²⁺ stores through PLC inhibition, and partly to the blockade, especially at higher concentrations, of Ca²⁺ entry from the extracellular space through PLC-independent processes.     

Early splenectomy and polychemotherapy versus polychemotherapy alone in chronic myeloid leukemia

The effect of early splenectomy and of polychemotherapy with hydroxyurea, busulfan, and alternate bimonthly courses of arabinosyl cytosine and vincristine plus prednisone, was evaluated in 139 previously untreated patients with chronic myeloid leukemia (CML), consecutively admitted to 18 hospitals from March 1973 to October 1974. Fifty-six patients were splenectomized and 83 patients were not splenectomized. Splenectomy did not influence the duration of chronic and blastic phase, and did not prolong survival. The prognosis of high risk patients was not improved. During the chronic phase, high platelet counts were more frequent in splenectomy group, and five patients developed thrombotic or thromboembolic complications, 5 to 19 months after the operation. The median survival of the whole group was 50 months, with 32 of 139 patients (actuarial proportion 30%) remaining alive 72 months after diagnosis, but the slope of the survival curve was similar to that of historical controls. The results of this trial suggests that new strategies should be developed for the therapy of CML.     

母血中胎儿有核红细胞数量与胎儿异常的关系

目的 :探讨母血中胎儿有核红细胞数量与胎儿异常的关系 ,为将它用于无创性产前诊断提供实验依据。方法 :对孕 6～ 40周的 86例妇女 (包括胎儿正常组 68例、胎儿异常组 1 8例 )的外周血进行单密度梯度离心、瑞氏染色和细胞计数 ,分析母血中胎儿有核红细胞数量与孕周、胎儿异常及胎儿性别的关系。结果 :胎儿正常组 ,母血中胎儿有核红细胞平均数量为 1 4.2 3±1 2 .0 1 /ml,与妊娠周数呈直线相关 (R >R0 .0 5)。胎儿异常组中 ,母血中胎儿有核红细胞平均数量较正常胎儿组显著增加 ,约为 3 8.73± 2 4.97/ml,且与妊娠周数无明显直线相关性。母体外周血中胎儿有核红细胞数量与胎儿性别无统计学相关性。结论 :胎儿发生异常时母血中胎儿有核红细胞数量较正常妊娠时增加。母血中胎儿有核红细胞数量在胎儿正常时随孕周而增加 ,且不受胎儿性别的影响。母血中胎儿有核红细胞计数可以辅助用于产前筛查胎儿异常的发生。     

HIV经血感染患者疾病发展与CD4细胞的相关性

目的 探讨CD4细胞计数在经血感染的HIV患者疾病发展中的意义。方法 对163例临床确诊的HIV患者CD4细胞计数的检测与其各系统机会感染的发生、临床分期及预后进行相关性分析。结果 CD4〈200／mm^3与CD4〉200／mm^3时机会感染及临床分期有统计学意义（P〈0．05或P〈0．01）。而CD4〈100／mm^3与CD4〉100／mm^3时相比AIDS的病死率有明显差异（P〈0．05）。结论 CD4细胞计数与HIV各系统机会感染、临床分期及预后有显著相关性，检测CD4细胞数可作为监测HIV病程进展的预兆指标。     

生精汤治疗精液异常不育症87例疗效观察

目的:观察生精汤治疗精液异常不育症的临床疗效。方法:以生精汤(处方:山药、山茱萸、覆盆子、桑椹、黄柏、枸杞子、菟丝子、淫羊藿、熟地黄、何首乌、麦芽、鹿角胶、牡丹皮、当归、甘草)治疗87例精液异常不育症患者。3月为1疗程,共治疗3疗程。每月复查1次精液常规,观察治疗前后精液各参数(精液量、液化时间、精子密度、活动率、精液形态)的变化及生育情况。结果:治愈12例,显效48例,有效19例,无效8例,总有效率90.8%。治疗前后精液各参数变化比较,差异均有非常显著性意义(P<0.01) 结论:生精汤治疗精液异常不育症,能有效改善并提高精子数量、活动力和精液质量,起到生精助育的作用     

肝硬化病人血小板4项参数的检测及意义

目的探讨肝硬化病人血小板计数(BPC)、血小板平均体积(MPV)、血小板分布宽度(PDW)、血小板压积(PCT)4项参数的变化及其临床意义。方法采用全自动血细胞分析仪及其配套试剂,检测50例正常人与108例肝硬化病人的外周血BPC、MPV、PDW、PCT。结果肝硬化病人BPC、PCT低于正常对照组,MPV、PDW则高于正常对照组,差异有显著性(F=4.63~6.54,P<0.01)。随着肝功能减退、Child-Pugh评分升高,BPC、PCT等明显下降,MPV、PDW明显上升,存在明显的相关性(r=0.502,P<0.01)。结论肝硬化病人BPC、MPV、PDW、PCT 4项参数的异常与肝脏功能受损的严重程度有关,肝硬化病人血小板4项参数检测对指导临床治疗及判断病人预后有重要意义。     

校正TIMI帧数对急性心肌梗死病人支架成形术后的预后评价

目的：观察急性心肌梗死（AM／）病人成功冠状动脉介入（Percutaneous coronary intervation，PCI）治疗后，校正TIMI帧数（Corrected TIMI Frame Count，CTFC）与其预后的关系。方法：选取成功PCI术后、梗死相关动脉TIMI血流3级的AMI病人123例，测定CTFC，同时观察住院期间不良事件的发生率及随访1年时死亡率。结果：根据CTFC值将病人分为慢、快两组。慢CTFE组住院期间不良事件发生率及随访1年时死亡率明显高于快CTFC组，两组具有显著性差异（P值分别为〈0．01和〈0．05）。结论：CTFC可有效评价成功PCI术后病人近、远期预后，有助于对此类病人进行进一步的危险度分层，以指导治疗。