牛角地黄冲剂对大鼠免疫性血小板减少模型血浆血栓素A2、前列环素I2的实验研究

观察牛角地黄冲剂对大鼠免疫性血小板减少模型血栓素A2(TXA2)、前列环素I2(PGI2)的影响.将100只SD大鼠随机分成正常对照组、模型对照组、强的松对照组、牛角地黄冲剂高剂量组、牛角地黄冲剂低剂量组.除正常组外,各组均以注射免抗大鼠血小板血清(APS)造模,分别灌药和蒸馏水,每日1次,连续11天,分别在第7天和第11天各测一半大鼠血浆血栓素B2(TXB2)、6-酮-前列腺素F1α(6-keto-PGF1α)值,并作骨髓涂片检查.结果显示强的松组6-keto-PGF1α水平明显高于正常组水平(P＜0.05)而牛角地黄冲剂高剂量组6-keto-PGF1α浓度明显高于模型组,且接近正常组水平.而各组TXB2水平改变均不显著.说明牛黄地黄冲剂有改善ITP出凝血功能低下的作用,且不改变机体生理平衡.     

Prevalence and treatment of chronic idiopathic thrombocytopenic purpura of childhood in Sweden

The frequency and treatment of children with chronic idiopathic thrombocytopenic purpura in Sweden were characterized using a national enquiry based on a questionnaire. Seventy-five children diagnosed as having chronic idiopathic thrombocytopenic purpura on 1 September 1993 were identified. The prevalence in children between 0.5 and 15.5 years of age was calculated to be 4.6/100 000. The median age at the time of diagnosis was 5 years and the male/female ratio was 1:1.2. Almost half of the patients (43%) were not treated at all during the disease. Steroids (43%) and intravenous immunoglobulin (25%) were most commonly used. Only two children were splenectomized.     

HELLP syndrome in a pregnant patient with a past history of splenectomy for idiopathic thrombocytopenic purpura. Case report

Case: We present a case of HELLP syndrome occuring in a patient who at the age of 8 years had undergone a splenectomy for idiopathic thrombocytopenic purpura. She was diagnosed as having HELLP syndrome 37 weeks of gestation and had a cesarean section. Received: 4 June 1996 / Accepted: 7 October 1996     

Platelet proteins as autoantibody targets in idiopathic thrombocytopenic purpura

Idiopathic thrombocytopenic purpura (ITP), caused by autoantibodies directed against certain platelet antigens, is the most common entity of the immune thrombocytopenias. ITP is an acquired disorder and can affect both children and adults. However, the clinical syndromes of ITP are distinct between children and adults. Childhood (acute) ITP characteristically is acute in onset, occurs within 1-2 weeks of an infection, usually of viral origin, resolves spontaneously within 6 months. Adult (chronic) ITP has an insidious onset and rarely resolves spontaneously. Over the last decade considerable new information has accumulated as to the pathophysiological mechanisms of immune thrombocytopenias. In addition, most of the knowledge on this disorder has been obtained from studies of adult patients with chronic ITP. The present work gives an updated overview of the platelet autoantigens and the molecular immunological reactions in ITP.     

更昔洛韦治疗特发性血小板减少性紫癜应用指征

目的探讨更昔洛韦(GCV)治疗人巨细胞病毒(HCMV)感染相关的特发性血小板减少性紫癜的(ITP)应用指征。方法选择血清HCMV DNA PCR和(或)HCMV IgM检测呈阳性ITP患儿46例,采用逆转聚合酶扩增反应(RT-PCR)检测巨核系祖细胞中HCMV晚期抗原mRNA,并行GCV治疗,判定其疗效及应用指征。结果46例血清HCMV-DNA PCR阳性和(或)血清HCMV-IgM阳性的ITP骨髓巨核祖细胞HCMV晚期抗原基因mRNA阳性19例,GCV治疗有效16例,mRNA阴性27例,GCV治疗有效4例。阳性组疗效高于阴性组,有显著性差异(P<0.01)。结论HCMV感染的ITP患儿,若对常规治疗无效,应检测其巨核祖细胞内HCMV晚期抗原基因mRNA,阳性者是应用更昔洛韦的有效指征。     

1例重症新型布尼亚病毒患者继发血栓性血小板减少性紫癜的护理

新型布尼亚病毒又称发热伴血小板减少综合征布尼亚病毒(severe fever with thrombocytopenia syndrome bunyavirus,SFTSV),是以发热伴血小板减 少为主要特征的新型传染性疾病,临床表现主要为发热、血小板减少、白细胞减少及多器官功能损害[1].     

血栓性血小板减少性紫癜治疗的研究进展

血栓性血小板减少性紫癜(TTP)是一种血栓性微血管病,患者因严重缺乏血管性血友病因子裂解酶导致大量富血小板血栓堵塞血管,最终引发终末器官衰竭。血浆置换作为TTP治疗的基石,极大程度提高了患者的生存率。随着对TTP病理生理机制的进一步探索,逐渐涌现了其它类型的替代疗法、新型免疫抑制剂、靶向拮抗剂、基因治疗等新兴手段,有望进一步降低该病患者的死亡率和复发率。本文就TTP治疗的最新研究进展作一综述。     

杨文华教授辨治特发性血小板减少性紫癜经验

介绍杨文华教授治疗特发性血小板减少性紫癜的临床经验。杨文华教授治疗血液病四十年,她认为本病病机病机在于热、瘀、虚,治疗应根据病变的不同阶段和不同证型,分别施治,治疗上分别采用清热泻火、滋阴降火、益气摄血等治则,兼以活血化瘀。     

发热 贫血 血小板减少 神经系统异常

患儿男,13岁7个月。2010-11-04以发热伴面色苍白1周为主诉入住中国医科大学附属第一医院儿科病房。患儿1周前开始无诱因发热伴颈部包块,无触痛,咳嗽无痰,体温最高达39℃,同时伴有面色苍白、乏力,无皮肤黄染,尿色略黄。曾于当地医院就诊,静滴抗炎类药物3d(具体药物不详),病情无好转,化验发现贫血严重。患儿病来时有烦躁,无水肿,睡眠可,精神差,进食差,鼻衄2次,黑便1次,无明显腹痛及尿量减少。