参附注射液对缺氧心肌细胞凋亡的抑制效应

目的　探讨参附注射液对缺氧诱导的培养乳鼠心肌细胞凋亡的作用。方法　将 SD乳鼠的培养心肌细胞随机分为三组:对照组、缺氧72 h组和参附注射液组。缺氧 72 h前加入1 mmol参附注射液。应用TUNEL法及流式细胞仪分析心肌细胞凋亡的变化,借助半胱胺酸 天门冬胺酸酶(caspase- 3)荧光分析试剂盒,荧光比色法检测心肌细胞凋亡过程中 caspase -3 活性的变化。结果　TUNEL及流式细胞仪分析显示,参附注射液组 AI值和细胞凋亡百分率分别为(14. 10±2 .56)%和(14. 93±2 .47)%,明显低于缺氧72 h组(46 .49±4 .93)%和(48 .43±4 .18)%(P<0 .01)。caspase -3活性检测显示,参附注射液组的caspase- 3活性比缺氧72 h组降低了 52. 85%(P<0. 01)。结论　参附注射液能明显抑制缺氧诱导的心肌细胞凋亡。caspase- 3蛋白酶活性抑制可能是其机理之一。     

复方人参注射液核磁共振指纹图谱研究

目的:建立复方人参注射液(人参、陈皮等)的核磁共振指纹图谱,探索质量控制的新方法.方法:运用核磁共振技术对复方人参注射液的中间体和成品进行指纹图谱研究,探索简便易行的指纹图谱分析方法.结果:通过对中间体和注射液的图谱相似度分析,表明工艺流程稳定,重现性良好.结论:核磁共振技术可以作为中成药指纹图谱研究的辅助方法以控制中药质量.     

中药制剂及外源性细胞因子对化疗损伤小鼠细胞因子及NK细胞活性的影响

目的研究人参养荣片组方、单味药(人参、当归、黄芪、白术)及单独注射G-CSF对化疗损伤小鼠细胞因子及NK细胞活性的影响.方法酶标双抗体夹心法测定用药后各组小鼠血清中细胞因子(IL-6、IL-12、EP0、G-CSF)含量;小鼠胸腺细胞增殖法(MTT法)测定血清及巨噬细胞培养上清中IL-1含量;NK细胞杀伤靶细胞K562(MTT法)测定NK细胞活性.结果人参可升高血清G-CSF、IL-12,当归可升高巨噬细胞培养上清IL-1及血清IL-12,二者均可增强NK活性;黄芪、白术均可使血清中IL-1、IL-6含量升高.人参养荣片可以将化疗损伤小鼠IL-1、IL-6、IL-12、EPO、G-CSF及NK细胞活性调整至正常水平,但不是单味药作用的累加.注射外源G-CSF 后G-CSF、IL-12、NK细胞活性略有升高,IL-1、IL-6、EP0的变化不明显.结论中草药拮抗化疗损伤可能是通过调节多种细胞因子实现的.     

红细胞分布宽度与血小板计数比值对脓毒症患儿预后的预测价值

目的 探讨入住儿童重症监护室（PICU）第1天红细胞分布宽度（RDW）与血小板计数（PLT）比值（RPR）对脓毒症患儿预后的评估价值。方法 回顾性分析PICU中186例脓毒症患儿的临床资料。根据预后分为存活组（n=151）和死亡组（n=35）。比较两组临床资料,采用Cox比例风险回归模型分析患儿预后的影响因素,并绘制受试者工作特征（ROC）曲线,评估RPR对死亡的预测效果。根据最佳截断值,将患儿分为高RPR组和低RPR组,采用Kaplan-Meier法分析两组28 d生存率。结果 死亡组RDW、降钙素原、RPR高于存活组（P < 0.05）;死亡组PLT、白蛋白低于存活组（P < 0.05）。Cox回归模型分析显示,低白蛋白、高降钙素原、高RPR为脓毒症患儿预后的独立危险因素（P < 0.05）。ROC分析显示,RPR值对脓毒症患儿预后有预测价值（P < 0.05）,曲线下面积为0.937,最佳截断值为0.062,灵敏度为94.29%,特异度为77.48%。Kaplan-Meier法生存分析曲线显示,高RPR组28 d生存率低于低RPR组（P < 0.05）。结论 入住PICU第1天RPR值与脓毒症患儿预后密切相关,对脓毒症患儿的预后具有预测价值。     

Fractional Factorial Design Study on the Performance of GAC-Enhanced Electrocoagulation Process Involved in Color Removal from Dye Solutions

The aim of this study was to determine the effects of main factors and interactions on the color removal performance from dye solutions using the electrocoagulation process enhanced by adsorption on Granular Activated Carbon (GAC). In this study, a mathematical approach was conducted using a two-level fractional factorial design (FFD) for a given dye solution. Three textile dyes: Acid Blue 74, Basic Red 1, and Reactive Black 5 were used. Experimental factors used and their respective levels were: current density (2.73 or 27.32 A/m²), initial pH of aqueous dye solution (3 or 9), electrocoagulation time (20 or 180 min), GAC dose (0.1 or 0.5 g/L), support electrolyte (2 or 50 mM), initial dye concentration (0.05 or 0.25 g/L) and current type (Direct Current—DC or Alternative Pulsed Current—APC). GAC-enhanced electrocoagulation performance was analyzed statistically in terms of removal efficiency, electrical energy, and electrode material consumptions, using modeling polynomial equations. The statistical significance of GAC dose level on the performance of GAC enhanced electrocoagulation and the experimental conditions that favor the process operation of electrocoagulation in APC regime were determined. The local optimal experimental conditions were established using a multi-objective desirability function method.     

血液成分在大面积烧伤患者中的应用

目的总结大面积烧伤患者血液成分的应用情况,为指导临床科学、合理用血提供依据。方法对本院接治的30例大面积烧伤患者的血液成分输注量、输注次数进行回顾性分析。结果 30例患者中男性24例,占80%,女性6例,占20%,A、B、O、AB血型人数分别为10例(33.3%)、11例(36.7%)、8例(26.7%)及1例(3.3%)。共用血液成分7 558U,其中红细胞1 811U(24.0%)、血浆5 604U(74.1%)、血小板143U(1.9%),成分输血率为100.0%。A型为2 413U(31.9%)、B型为3 153U(41.7%)、O型为1 894U(25.1%)、AB型为98U(1.3%)。结论大面积烧伤患者除应大量补充晶体及其他胶体液外,输注血浆、红细胞及血小板等血液成分也尤为重要。     

The effect of ginseng on sexual dysfunction in menopausal women: A double-blind,randomized, controlled trial

ObjectivesSexual problems constitute a largely-overlooked problem for women during menopause. The present study was conducted to determine the effect of Ginseng on sexual function (primary outcome), quality of life and menopausal symptoms (secondary outcomes) in postmenopausal women with sexual dysfunction.DesignThis randomized controlled trial was conducted on 62 women who were randomly assigned to the intervention/control groups using block randomization.InterventionThe intervention group received 500 mg of Panax Ginseng and the control group received placebo twice daily for four weeks.Main outcome measuresStandard questionnaires including the Female Sexual Function Index (FSFI), the Menopause-Specific Quality of Life (MENQOL) and the Greene Menopausal Symptom Scale were completed before and four weeks after the intervention.ResultsThere were no statistically significant differences between the two groups in terms of demographic characteristics and the baseline scores of sexual function, quality of life and menopausal symptoms (P > 0.05). After the intervention, the mean total score of FSFI (Adjusted Mean Difference = 6.32, 95% CI = 3.48 to 9.16, P < 0.001) was significantly higher in the intervention group compared to the control group. The mean total score of quality of life (AMD=-20.79, 95% CI=-25.83 to -15.75, P < 0.001) and menopausal symptoms (AMD=-8.25, 95% CI=-10.55 to -5.95, P < 0.001) were significantly lower in the treatment group than the control group.ConclusionGinseng has significant effects in improving sexual function and quality of life and mitigating menopausal symptoms. As a multipotent plant, Ginseng can be a suitable alternative for conventional therapies to promote the health of menopausal women.     

正常妊娠与重度子痫前期孕妇血常规参数的孕期变化对比

目的:比较重度子痫前期孕妇与正常妊娠孕妇在不同孕期下血常规参数的变化并分析其临床意义。方法:选择重度子痫前期孕妇100例为观察组,正常妊娠孕妇100例为对照组,对两组孕妇从妊娠12周起每隔4周进行血常规检查,比较两组的参数变化。结果:观察组与对照组的白细胞计数(WBC)、中性粒细胞比例(N)、淋巴细胞比例(L)在不同孕周间变化不明显,差异没有统计学意义(P>0.05)。相同孕周下两组WBC、N、L的差异没有统计学意义(P>0.05)。对照组的红细胞计数(RBC)、血红蛋白浓度(Hb)、血细胞比容(HCT)在整个妊娠过程中表现出先降低后升高的趋势。观察组RBC、Hb和HCT在不同孕周下没有表现出先降低后升高的趋势。RBC和Hb水平在孕16～35周高于对照组的同期水平,HCT水平在孕20-31周高于对照组的同期水平,差异有统计学意义(P<0.05)。观察组与对照组血小板(PLT)水平在整个妊娠过程中均表现出缓慢下降的趋势,平均血小板体积(MPV)则呈现出逐步上升的趋势。观察组PLT在孕32～39周的水平低于同期对照组的水平,MPV在孕28～35周的水平高于同期对照组的水平,差异有统计学意义(P<0.05)。结论:血常规参数在不同孕周中的变化可以大致反映孕妇的血容量、血黏度以及凝血状态的变化。有望帮助临床早期筛选出重度子痫前期孕妇,及时给予针对性的干预以减轻症状、延缓病情发展。