西藏高原地区继发性喉结核49例临床分析

目的:总结西藏高原地区继发性喉结核的临床特征,进一步提高其诊疗水平。方法:回顾性分析49例西藏高原地区继发性喉结核患者的临床资料。结果:临床诊断47例,病理诊断2例。病程<1年24例,1～3年11例,>3～5年9例,>5年5例。自述有结核病史38例,否认有结核病史11例。34例曾用抗结核药物治疗,但均未按正规方法服药。患者均有长期声嘶、咳嗽、咽喉肿痛等症状,但局部和全身症状均较轻。42例初诊为慢性喉炎,15例口服或雾化吸入糖皮质激素后病情加重,7例初诊为喉癌。喉部特征性表现为:喉的后部苍白水肿、增生结节或糜烂溃疡,喉前部基本正常或病变轻。49例经肺CT或X线证实均伴有肺结核。12例PPD试验呈强阳性,2例痰涂片发现结核菌。诊断性治疗49例均有效。患者均接受标准化疗方案治疗,沐舒坦联合抗结核药物雾化吸入治疗1～2个月。药物治疗结束时,除1例因意外车祸死亡外,临床治愈43例,好转5例。结论:由于西藏高原地区结核病的高发特点,在高原遇到慢性喉炎表现的患者时应想到喉结核的可能。绝大多数喉结核继发于肺结核,应首选肺CT和喉镜检查。继发性喉结核的诊断与肺结核一样,根据症状、喉部特征性表现、诊断性治疗有效等即可确立临床诊断...     

Klinefelter综合征患者和双亲对诱变剂敏感性研究

为了解诱变剂对Ｋｌｉｎｅｆｅｌｔｅｒ综合征发生的影响，对Ｋｌｉｎｅｆｅｌｔｅｒ综合征患者，患者双亲及对照进行丝裂霉素Ｃ，乙醛或乙醇诱导非二倍体，染色体结构畸变及微核观察，发现丝裂霉素Ｃ诱导的患者当色体结构畸变和微核均显著多于对照和双亲，乙醛和乙醇能诱导非二倍体和微核增加，但患者和双亲增加的程度极显著高于对照，提示Ｋｌｉｎｅｆｅｌｔｅｒ综合征患者对于丝裂霉素Ｃ，乙醛和乙醇诱导染色体畸变更敏感。双亲对     

Phomadecalins A-D and phomapentenone A: new bioactive metabolites from Phoma sp. NRRL 25697, a fungal colonist of Hypoxylon stromata

Five new natural products, phomadecalins A-D (1-4) and phomapentenone A (5), have been obtained from cultures of Phoma sp. (NRRL 25697), a fungal colonist isolated from the stromata of Hypoxylon sp. The structures of these compounds were elucidated through a series of 1D and 2D NMR experiments. Compounds 1-4 display activity against Gram-positive bacteria.     

帕司烟肼介入凝胶体外抗结核活性及安全性研究

目的 观察帕司烟肼凝胶体外抗结核作用和支气管介入的安全性。方法 手工法、仪器法分别测定帕司烟肼及其凝胶的最小抑菌浓度和最小杀菌浓度及家兔经支气管介入的安全性试验。结果 帕司烟肼凝胶对H37Rv标准株、牛型结核分枝杆菌、草分枝杆菌MIC值分别为0．1、0，1、0．4mg／L，MBC值分别为0，2、0．2和1．6mg／L；帕司烟肼凝胶与帕司烟肼单体MIC、MBC值无显著差异；动物实验表明该药应用安全。结论 帕司烟肼凝胶具有与帕司烟肼单体相同的抗结核菌药效，卡波姆基质不影响帕司烟肼的抗菌活性；以卡波姆为基质的帕司烟肼凝胶应用安全。     

椎管内肠源性囊肿

目的：报告6例椎管内肠源性囊肿的临床表现，诊断及治疗，方法：分析6例椎管内肠源性囊肿的病史，临床表现及诊断，治疗情况，结合文献加以分析讨论。结果：6例皆在儿童期发病，5例以神经根性疼痛起病，6例均有脊髓受压表现，2例症状有反复，3例有脊柱畸形。5例手术全切，1例大部切除，均取得较好疗效。结论：椎管内肠源性囊肿是良性先天性发育异常疾病，手术治疗效果好，MRI检查及微创手术的应用是提高诊断和治疗的关键。     

Long-term and sustained COMP-Ang1 induces long-lasting vascular enlargement and enhanced blood flow

Vascular enlargement is a characteristic feature of angiopoietin-1 (Ang1)-induced changes in adult blood vessels. However, it is unknown whether tissues having Ang1-mediated vascular enlargement have more blood flow or whether the enlargement is reversible. We have recently created a soluble, stable and potent Ang1 variant, COMP-Ang1. In the present study, we investigated the effects of varied dose and duration of COMP-Ang1 on vascular enlargement and blood flow in the tracheal microvasculature of adult mice and explored a possible mechanism of long-lasting vascular enlargement. We found that COMP-Ang1 administered by adenoviral vector induced long-lasting vascular enlargement and increased tracheal blood flow. In contrast, short-term administration of COMP-Ang1 recombinant protein induced transient vascular enlargement that spontaneously reversed within a month. In both cases, the vascular enlargement resulted from endothelial proliferation. The COMP-Ang1-induced vascular remodeling is mediated mainly through Tie2 activation. Sustained overexpression of Tie2 could participate in the maintenance of vascular changes. Together, our findings indicate that sustained treatment with COMP-Ang1 can produce long-lasting vascular enlargement and increased blood flow.     

Therapeutic effects of Holmium-166 chitosan complex in rat brain tumor model

This study examined the effectiveness of Holmium-166 (Ho-166) chitosan complex therapy for a malignant glioma. Cultured C6 glioma cells (100,000 in 5 microl) were injected into the caudate/putamen of 200-250 gram Wistar rats. Five days later, a Ho-166 chitosan complex was injected into the same site of the glioma injection. Four injection doses were administered: the control group received PBS 10 microl, group 1 received an injection of 100 microCi (10 microl), group 2 received an injection of 50 microCi (5 microl), and group 3 received an injection of 10 microCi (1 microl). The average tumor volume for each group was 1.385 mm3 for the control group, 0.036 mm3 for group 1, 0.104 mm3 for group 2, and 0.111 mm3 for group 3. Compared with the control group, the size of the tumors in groups 1, 2 and 3 was reduced by an average of 97.4%, 92.5% and 91.9%, respectively. The Kaplan-Meier survival curve of group 2 was the longest, followed by groups 3, group 1 and the control. The mean survival was 22.8, 59, 60, and 44.6 days for the control group and groups 3, 2 and 1, respectively. H-E staining revealed that group 2 yielded the best results in the destruction of the malignant glioma. TUNEL staining and immunohistochemical studies indicated apoptotic features. The Ho-166 chitosan complex proved to be effective in destroying the malignant glioma.     

A retrospective study of the clinical outcomes and significant variables in the surgical treatment of temporal lobe tumor associated with intractable seizures

A retrospective study was performed assessing the preoperative evaluation, and the postoperative outcomes in 35 patients with a temporal lobe tumor with intractable seizures who were treated by our neurosurgery service between October 1995 and December 1999. The mean age of the patients at the time of surgery was 27.9 years. The period of follow-up after surgery was a mean of 33.0 months. Of the study group of 35 patients, 27 (77.1%) became completely seizure free after surgery (class I), and 2 patients (5.7%) had no more than 2 seizures per year (class II). Worthwhile seizure control was achieved in 29 patients (82.8%). There was a statistical significance between the extent of tumor resection and favorable seizure outcome (p = 0.014). The most frequent histopathological diagnoses were classic epilepsy-associated ganglioglioma in 16 (45.7%) patients and low-grade astrocytoma in 10 (28.6%) patients. Complete resection of tumor was the most significant factor in obtaining a favorable seizure outcome.     

四时感冒的中医辨证治疗

将临床常见的感冒按春、夏、秋、冬四时分型，以气虚、阴虚、气郁、经期感冒分证，从病因、症状、辨证、方药等方面进行综合阐述，并辅以临证医案予以验证，对临床工作有较好的参考价值。