吡喹酮长循环纳米粒在家兔体内的药动学

健康成年家兔18只,随机分为3组,分别静注吡喹酮溶液、吡喹酮纳米粒和吡喹酮长循环纳米粒(10 mg/kg).以地西泮为内标,采用HPLC法测定家兔血浆中的吡喹酮.吡喹酮注射液和吡喹酮纳米粒的体内过程符合二房室模型,吡喹酮长循环纳米粒的体内过程符合三房室模型,3种制剂的主要药动学参数分别为:t1/2(1.27±1.56)、(1.13±0.66)和(23.82±8.94)h,CL(5.29±0.78)、(2.38±1.00)和(1.16±0.16)L·h-1·kg-1,AUC0→t(1.48±0.2 7)、(3.52±1.79)和(4.93±1.27) mg·h·ml-1,MRT(0.44±0.30)、(0.41±0.10)和(16.12±1.38) h.     

三七种子贮藏习性研究

目的研究三七种子的贮藏习性,为三七种子的保存提供科学依据。方法用TTC法测定不同水分和不同温度贮藏三七种子生活力。结果三七种子对干燥脱水的忍耐能力类似顽拗型种子,其最低安全含水量为17%。结论三七种子为顽拗型种子,对低温极为敏感,不适宜采用低温贮存。     

Interleukin-1alpha polymorphism -889C/T related to obesity in Korean Taeumin women

Interleukin-1 (IL-1), a cytokine produced predominantly by cells from the macrophage lineage, can affect multiple neuroendocrine and metabolic functions. IL-1alpha production by cultured peripheral blood mononuclear cells from an obese group was significantly elevated in comparison to a control group. The aim of this study was to investigate whether the IL-1alpha polymorphism and Sasang constitution, a major branch in Korean traditional medicine, were related to obesity. Genotyping was done in 182 healthy females with a marked variation in body mass index (BMI) by a PCR-restriction fragment length polymorphism assay. The T allele was associated with decreased BMI (p = 0.020). In a subgroup with BMI values ranging from 27 approximately 29 kg/m(2), the frequency of the T allele was significantly decreased (p = 0.004, odds ratio, OR = 0.141 compared to a subgroup with a BMI values less than 25 Kg/m(2)). In addition, in Taeumin female subjects, the frequency of the IL-1alpha T allele was markedly decreased in a subgroup with BMI values in the range of 27 approximately 29 kg/m(2) compared to a lean group with BMI values less than 25 kg/m(2) (p = 0.004, OR = 0.139). In Korean women, an association was found between -889C/T polymorphism in the regulatory region of the IL-1alpha gene and BMI values. In addition, an association was found among IL-1alpha polymorphism, obesity, and the Sasang constitution.     

Peritoneal fluid from endometriosis patients switches differentiation of monocytes from dendritic cells to macrophages

Immunological abnormalities of cell-mediated and humoral immunity might be associated with the pathogenesis of endometriosis. This study has examined the effects of peritoneal fluid obtained from patients with endometriosis (ePF) on the phenotypic characteristics of macrophages and dendritic cells (DCs) derived from monocytes. Monocytes were obtained from healthy young volunteers and cultured with ePF (n=12) or a control PF (cPF) (n=5) in the presence or absence of macrophage-colony stimulating factor (M-CSF) or IL-4 plus granulocyte macrophage-colony stimulating factor (GM-CSF). The ePF was demonstrated to increase expression levels of CD14 and CD64 on isolated monocytes in the presence or absence of M-CSF. Compared with cPF, addition of 10% ePF to GM-CSF plus IL-4-treated monocytes significantly down-regulated CD1a expression and up-regulated CD64 expression, but did not enhance expression levels of class II MHC. ePF had no effect, however, on tumor necrosis factor-alpha-induced maturation of DC. Levels of IL-6, IL-10 and M-CSF production were higher in ePF-treated than cPF-treated monocytes for both cell culture conditions with GM-CSF plus IL-4 and M-CSF. A neutralizing IL-6 antibody, but not an IL-10 antibody, abrogated the ePF-induced down-regulation of CD1a, up-regulation of CD64 and secretion of M-CSF. These results suggest that ePF favorably induces monocyte differentiation toward macrophages rather than DCs, and that this effect is mediated by IL-6. A reciprocal mode of cell differentiation between macrophages and DCs in response to ePF may be related to the pathogenesis of endometriosis.     

细胞周期调控基因p21和p27单核苷酸多态性与卵巢上皮性癌的关系

目的 探讨细胞周期调控基因p21和p27的单核苷酸多态性(SNP)与卵巢上皮性癌(卵巢癌)发病风险的关系.方法 采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法检测234例卵巢癌患者(卵巢癌组)和284例健康妇女(对照组)p21基因C/T和p27基因V/G SNP位点基因型和等位基因的频率分布.结果 (1)对照组妇女p21基因的C/C、C/T和T/T基因型频率分别为34.2%、49.6%和16.2%,C和T等位基因频率分别为59.0%和41.0%;卵巢癌组患者3种基因型频率分别为28.2%、53.0%和18.8%,C和T等位基因频率分别为54.7%和45.3%.两组基因型频率和等位基因频率分别比较,差异均无统计学意义(P＞0.05).3种基因型频率在4种病理类型的卵巢癌中的分布有明显差异(P=0.02),C/C基因型降低子宫内膜样癌的发病风险(OR为0.56,95%CI为0.32～0.98).(2)对照组妇女p27基因V/V、V/G和G/G基因型频率分别为88.4%、10.9%租0.7%,V和G等位基因频率分别为93.8%和6.2%;卵巢癌组患者的基因型频率分别为93.6%、5.1%和1.3%,V和G等位基因频率分别为96.2%和3.8%.两组基因型频率分布比较,差异有统计学意义(P=0.04),等位基因频率分布比较,差异则无统计学意义(P=0.09).与V/G和G/G基因型比较,V/V基因型增加卵巢癌的发病风险(OR为1.92,95%CI为1.02～3.63).结论 p21基因C/T多态性的C/C基因型可能降低子宫内膜样癌的发病风险,p27基因的V/V基因型可能是卵巢癌发病的潜在危险因素.     

儿童急性病毒性心肌炎卡托普利治疗前后心室功能的变化

目的：探讨卡托普利治疗儿童急性病毒性心肌炎（VMC）前后心室功能变化及其临床意义。方法：采用多普勒超声心动图检测VMC组（n＝60）治疗前和对照组（n＝30）心室心缩、舒张功能,将VMC组随机分成卡托普利治疗组（n＝30）和常规治疗组（n＝30）,检测两组治疗后心室收缩、舒张功能,并进行比较。结果：①急性VMC患儿心室收缩舒张功能明显减退,与对照组比较差异有显著性意义（P＜0.01）。②治疗后与治疗前比较,卡托普利治疗组收缩舒张功能明显改善（P＜0.01）,常规治疗组收缩功能好转（P＜0.01）,而舒张功能未见好转（P＞0.05）;两组治疗后比较,前者明显优于后者。结论：①急性儿童病毒性心肌炎存在心室收缩、舒张功能减退;②运用卡托普利治疗儿童急性病毒性心肌炎是一种有效的治疗方法,值得临床推广。n     

结直肠肿瘤患者术后焦虑评分同术后并发症的相关性

目的 了解结直肠肿瘤患者术后焦虑评分对术后并发症的影响.方法 前瞻性纳入2010年2月至5月四川大学华西医院胃肠外科中心结直肠外科专业组126名结直肠癌确诊患者,并根据焦虑评分分为3组,组间比较术后并发症发生率;评估分析患者术后焦虑的相关因素;探索术后焦虑评分同患者术后并发症发生率的临界评分值.结果 3组间术后并发症发生率有着明显不同(χ2＝17.904,P＜0.001),同时可能焦虑组(焦虑评分＜7～13分)术后并发症发生率低于无焦虑组(焦虑评分＜7分)(χ2＝11.027,P＝0.002)及焦虑组(焦虑评分>14)(χ2＝20.677,P＜0.001),无焦虑组及焦虑组差异无统计学意义(χ2＝1.636,P＝0.274);术后焦虑的主要危险因子有费用类型(P＝0.053),居住地(P＝0.018),内科合并症(P＝0.014),新辅助化疗(P＝0.053),DUKES分期(P＝0.009),术后普食天数(P＝0.001);而分析得术后焦虑评分的临界值为17分,术后焦虑评分>17分时患者术后并发症发病率较高(χ2＝12.538,P＝0.004).结论 结直肠癌患者术后焦虑评分同术后并发症的发生有着一定的相关性,焦虑评分高者更易发生术后并发症,但适度的焦虑患者术后并发症的发生率相对较低.     

养肺消积分期疗法治疗晚期非小细胞肺癌的疗效观察

目的 观察养肺消积分期疗法对晚期(Ⅲb-Ⅳ期)非小细胞肺癌患者的临床疗效及生存的影响.方法 采用队列研究,选取符合入组标准非小细胞肺癌患者156例,其中综合治疗组82例,单纯西医组74例,综合治疗组在西医规范化疗的基础上采用养肺消积分期疗法按阶段治疗,以中位无疾病进展时间(M-PFS)、中位生存期(MST)为主要观察指标,中医临床症状积分变化、肿瘤控制率(DCR)、不良反应等为次要观察指标.结果 综合治疗组第1年、第2年总生存率分别较单纯西医组提高了23.9%、14.6%(P<0.05);与单纯西医组比较,综合治疗组无疾病进展时间、中位生存期均提高了3个月(P<0.01);综合治疗组瘤体控制率比单纯西医组提高13.2%(P<0.05).结论 养肺消积分期疗法联合西医治疗能够提高晚期非小细胞肺癌患者的总生存期,延长中位无疾病进展时间、中位生存期;同时,可以改善患者中医临床症状积分,增加肿瘤控制率,不良反应小,具有增效减毒作用.