八桂止痛膏对小鼠镇痛 抗炎作用效果实验研究

目的探讨八桂止痛膏(BAO)对小鼠镇痛、抗炎作用效果。方法选择昆明种雌性小鼠作为实验对象,根据干预方式不同将其分为空白对照组(不予药物干预)、扶他林组(予扶他林软膏干预)和BAO组(予BAO干预)。通过热板实验、醋酸扭体实验和二甲苯致小鼠耳廓肿胀实验评估干预处理对小鼠的镇痛、抗炎效果。结果在给药后15～45 min,扶他林组痛阈值呈逐渐上升趋势,而BAO组痛阈值呈先上升后下降趋势。两组给药后各时间点的痛阈值均高于空白对照组,差异有统计学意义(P <0.05)。在给药后45 min时间点,BAO组痛阈值低于扶他林组,差异有统计学意义(P <0.05)。扶他林组和BAO组扭体次数低于空白对照组,差异有统计学意义(P <0.05)。扶他林组和BAO组扭体次数和扭体次数抑制率比较差异无统计学意义(P> 0.05)。扶他林组耳廓肿胀质量小于BAO组和空白对照组,BAO组耳廓肿胀质量亦小于空白对照组,差异有统计学意义(P <0.05)。结论 BAO具有较好的镇痛、抗炎作用,其效果与扶他林软膏相当。     

湿润烧伤膏联合乳酸依沙吖啶湿敷在高龄患者慢性伤口中的应用

慢性伤口是指愈合时限延长,不能正常自愈,而需借助外力才能愈合的伤口,多发于长期卧床、身体状况较差的高龄患者。伤口迁延不愈,严重影响了患者的生活质量。     

盐酸米诺环素软膏注满牙周袋治疗重度牙周-牙髓联合病变的临床疗效

目的 分析盐酸米诺环素软膏注满牙周袋对重度牙周-牙髓联合病变患者牙周组织再生的影响.方法 选取2019年2月至2020年2月本院收治的重度牙周-牙髓联合病变患者93例作为研究对象,将入选患者随机编号1～115号,将奇数患者58例纳入对照组,将偶数患者57例纳入观察组.两组均给予常规牙周基础治疗,观察组在此基础上给予盐酸...     

Interactions between human microbiome,liver diseases,and immunosuppression after liver transplant

In liver transplant patients, solid tumors and post-transplant lymphoproliferative disorders have emerged as significant long-term mortality causes. In addition, it is assumed that de novo malignancy after liver transplantation (LT) is the second-leading cause of death after cardiovascular complications. Well-established risk factors for post-transplant lymphoproliferative disorders and solid tumors are calcineurin inhibitors, tacrolimus, and cyclosporine, the cornerstones of all immunosuppressive therapies used after LT. The loss of immunocompetence facilitated by the host immune system due to prolonged immunosuppressive therapy leads to cancer development, including LT patients. Furthermore, various mechanisms such as bacterial dysbiosis, activation through microbe-associated molecular patterns, leaky gut, and bacterial metabolites can drive cancer-promoting liver inflammation, fibrosis, and genotoxicity. Therefore, changes in human microbiota composition may contribute further to de novo carcinogenesis associated with the severe immunosuppression after LT.     

丹皮酚软膏治疗老年人皮肤瘙痒症的临床和实验研究

目的观察丹皮酚软膏治疗老年皮肤瘙痒症的疗效,并通过动物实验,对比丹皮酚软膏和氢化可的松软膏的抗过敏止痒效果。方法将80例老年皮肤瘙痒症患者按1︰1的比例随机分为治疗组40例和对照组40例,治疗组用润燥止痒胶囊配合丹皮酚软膏治疗,对照组用润燥止痒胶囊配合氢化可的松软膏,均外用3周后观察临床疗效。以4氨基吡啶诱发小鼠舔体反应,观察丹皮酚软膏对舔体反应的影响;以组胺使豚鼠皮肤瘙痒,观察丹皮酚软膏对豚鼠致痒阈的影响。低分子右旋糖酐诱发小鼠皮肤瘙痒,观察丹皮酚软膏的止痒作用。结果对比丹皮酚软膏和氢化可的松软膏的临床疗效,治疗组有效率为100%;对照组有效率为92.5%,两组差异无统计学意义(P﹥0.05)。丹皮酚软膏显著抑制4-氨基吡啶诱发的小鼠舔体反应;显著提高豚鼠对组胺的致痒阈;显著抑制低分子右旋糖酐诱发的小鼠皮肤瘙痒。结论丹皮酚软膏对多种动物模型有止痒作用,丹皮酚软膏治疗老年人皮肤瘙痒症效果好。     

Wound healing effect of flavonoid rich fraction and luteolin isolated from Martynia annua Linn. on streptozotocin induced diabetic rats

ObjectiveTo evaluate wound healing potential of flavonoid fractions of Martynia annua (M. annua) Linn. leaves in diabetic rats on the basis of folkloric information and preliminary study.MethodsThe flavonoid compound luteolin and apigenin were isolated from dried leaves of plant by column chromatography. The two concentrations (0.2% and 0.5% w/w) of luteolin and flavonoid fraction were selected for topically applied as ointment on diabetic wound. The Povidone Iodine Ointment USP was used as a reference. On 18th days, protein content, hydroxyproline and antioxidants (SOD, CAT and GSH) level in granuloma tissues were determined.ResultsThe results showed that, percent wound contraction were observed significantly (P<0.01) greater in MAF fraction and 0.5% w/w of luteolin treatment groups. Presence of matured collagen fibres and fibroblasts with better angiogenesis were observed in histopathological studies.ConclusionsIn conclusion, our findings suggest that flavonoid fraction (MAF) and luteolin (0.5% w/w) may have potential benefit in enhancing wound healing in diabetic condition, possibly due to free-radical scavenging activity of plant.     

Amelioration of Endotoxin-Induced Uveitis in Rabbit by Topical Administration of Tacrolimus Proglycosome Nano-Vesicles

This work was aimed to improve the efficacy of tacrolimus in the treatment of endotoxin-induced uveitis (EIU) using propylene glycol modified lipid vesicles termed as proglycosome nano-vesicles (PNVs). PNVs were prepared by modified film hydration method. Experimental uveitis in rabbit eye was induced by an intravitreal injection of 20 μL of the endotoxin solution containing 100 ng of lipopolysaccharide endotoxin. In vivo efficacy of PNVs was determined by studying clinical symptoms of uveitis using slit lamp examination and by quantitatively measuring levels of tumor necrosis factor-alpha, interleukin-6, leukocytes and total proteins in aqueous humor, 24 h after intravitreal injection of endotoxin. Comparison was made with healthy, untreated and tacrolimus solution treated eyes. PNVs developed were nano-sized, deformable and showed sustained release of tacrolimus over period of 12 h. In vivo results indicated statistically significant difference between the effects of PNVs in the treatment of EIU compared to tacrolimus. PNV treatment not only subsides clinical symptoms of uveitis but also prevented breakdown of blood aqueous barrier. Tacrolimus loaded PNVs are potential new topical treatment for uveitis.     

超脉冲CO2点阵激光辅助中药苦参油膏治疗增生性瘢痕的临床疗效观察

目的探讨超脉冲CO₂点阵激光辅助中药苦参油膏治疗增生性瘢痕的临床疗效。方法选取增生性瘢痕患者72例,随机分为对照组和研究组,每组各36例。对照组采用CO₂点阵激光治疗,冷敷冷疗后直接包扎,研究组在此基础上配合中药苦参油膏外敷,观察疗效和不良反应情况,比较两组患者疼痛指数、创面愈合时间、温哥华瘢痕量表(VSS)评分以及治疗后色沉发生率。结果每次治疗后研究组疼痛指数评分及创面愈合时间均低于对照组(P<0.05)。治疗前两组患者VSS评分无统计学差异(P>0.05);治疗后2个月和6个月时,研究组VSS评分均明显小于对照组(P<0.05)。研究组色沉发生率38.88%,明显低于对照组的72.22%,差异有统计学意义(P<0.05)。结论超脉冲CO₂点阵激光辅助中药苦参油膏治疗增生性瘢痕,可明显降低疼痛指数和VSS评分,缩短创面愈合时间,且不良反应较少,值得临床推广应用。     

复方九节茶乳膏的质量标准研究

目的：建立复方九节茶乳膏质量标准。方法采用薄层色谱法对九节茶和冰片进行鉴别;HPLC 双波长法测定复方九节茶乳膏中反丁烯二酸与迷迭香酸含量。采用 Kromasil C18色谱柱（250 mm ×4．6 mm,5μm）,流动相为0．1％甲酸乙腈溶液（B）—0．1％甲酸水溶液（D）,梯度洗脱[0～10 min,5％ B→20％ B;10～25 min,20％ B;25～30 min,20％ B→5％ B;30～35 min,5％ B],流速为1．0 mL·min －1,检测波长为210 nm 和330 nm,柱温为30℃。结果薄层鉴别斑点清晰,阴性无干扰;反丁烯二酸和迷迭香酸线性范围分别为6．53～65．28 mg·L －1（r ＝0．9999）和4．26～42．64 mg·L －1（r ＝0．9995）;平均加样回收率分别为98．3％（RSD ＝0．82％）和100．9％（RSD ＝0．63％）。结论该方法简单、准确、重复性好,能有效的控制该制剂的质量。