Effects of Bofutsushosan and Gardeniae Fructus on Diabetic Serum Parameters in Streptozotocin-Induced Diabetic Mice

Streptozotocin (STZ)-induced diabetic mice increased levels of serum glucose, triglyceride and cholesterol, and decreased level of serum insulin. Effects of Bofutsushosan (BOF: Pulvis ledebouriellae compositae: 防風通聖散) and its composed crude drug, gardeniae fructus (GF: 山梔子) were investigated on levels of these diabetic parameters (serum glucose, insulin, triglyceride and cholesterol) in STZ-diabetic mice. BOF and GF were extracted in 10 volumes of distilled water with an automatic extractor “Torobi”. STZ-induced diabetic mice with serum glucose level of over 600 mg/dl at 3 - 4 weeks after intravenous injection of 150 mg/kg STZ were used for experiments. BOF extract, GF extract, geniposide (a main constituent of GF), and glibenclamide were administered intraperitoneally into 3-hour-fasted STZ-diabetic mice. At 6 hours after administration, BOF extract (100 - 300 mg/kg) decreased high levels of serum glucose, triglyceride and cholesterol, and also increased low level of serum insulin in STZ-diabetic mice in a dose-dependent manner, respectively. Anti-diabetic drug glibenclamide (0.3 - 1 mg/kg) as positive control significantly decreased serum glucose and cholesterol levels, and increased serum insulin level in the diabetic mice. GF extract (30 - 300 mg/kg) decreased serum glucose, triglyceride and cholesterol levels but did not affect serum insulin level in the diabetic mice. Geniposide (10 - 100 mg/kg), decreased serum glucose level but did not affect serum insulin and triglyceride levels in the diabetic mice. These results demonstrated that intraperitoneally administrated BOF extract improved abnormal levels of serum glucose, insulin, triglyceride and cholesterol in the STZ-diabetic mice as being similar to glibenclamide. GF extract has an important role in a part of improving actions of BOF in the diabetic mice. The action of GF extract on serum glucose was parallel with the action of geniposide in the diabetic mice, supporting roles of geniposide in anti-hyperglycemic action of GF.

去甲斑蝥素抗肿瘤作用机制与联合治疗潜力

目的 对去甲斑蝥素的药理作用机制及临床联用进行系统阐述,并对开发去甲斑蝥素新型给药系统进行展望,为去甲斑蝥素进一步深入研究和临床应用奠定基础。方法 查阅国内外相关文献,对去甲斑蝥素的药理作用机制和临床联合用药情况进行分析和归纳总结。结果 去甲斑蝥素既可以通过单药多靶点机制实现抗肿瘤作用,还具有升高白细胞和调节机体免疫平衡的功能;去甲斑蝥素在临床上可以与化疗药物、免疫药物、靶向药物或放射疗法等联用,实现协同抗癌作用;去甲斑蝥素有望开发出脂肪乳注射液、乳化体和脂质体-乳剂复合体等高靶向、缓控释、低毒性和不良反应少的新型改良系统。结论 去甲斑蝥素临床联用具有广阔的应用前景,有待进一步深入研究。

心房颤动合并糖尿病人群的脑卒中研究进展

糖尿病是已被证实的心血管疾病的独立危险因素,促进心房颤动及脑卒中的发生,甚至增加死亡风险。现已有的研究提示心房颤动合并糖尿病时将进一步提升脑卒中发生率及死亡率。本文主要是简述心房颤动合并糖尿病时与脑卒中之间可能存在的相互关系、预防脑卒中事件发生的抗凝药物和抗高血糖药物治疗。从而提出:(1)AF合并DM应积极进行干预治疗。(2)与华法林相比,该类人群应服用NOACs预防脑卒中更有益。(3)尽可能服用新型抗高血糖药物SGLT2i或GLP-1 RA控制血糖从而以起到心脏保护作用,降低脑卒中及死亡风险。

铁皮枫斗胶囊合用格列吡嗪降血糖作用的实验研究

目的 研究铁皮枫斗胶囊合用格列吡嗪的降血糖作用 ,与两药单用进行比较。方法 采用正常小鼠 ,葡萄糖致高血糖小鼠 ,链脲霉素 (STZ)诱发的糖尿病小鼠 ,用葡萄糖氧化酶法测定血糖值。结果 对葡萄糖致高血糖小鼠与STZ诱发的糖尿病小鼠 ,两药合用均比两药单用有更显著的降血糖作用。

荜茇酰胺抗肿瘤及其纳米给药系统研究进展

荜茇酰胺是一种来源于中药荜茇的天然生物碱成分,其抗肿瘤活性强且对正常细胞毒性小,与化疗、放疗联合具备优异的增敏作用,因此近些年来备受关注。但是荜茇酰胺水溶性低、生物利用度差等问题也严重阻碍了其在临床上的应用,构建荜茇酰胺纳米给药系统可以很好地改善上述问题。将荜茇酰胺及其纳米给药系统广泛用于多种癌症的治疗具有良好的应用前景。通过对近年来国内外文献中荜茇酰胺的理化性质、抗肿瘤作用机制、相关的联合治疗应用及其纳米给药系统的抗肿瘤研究进行整理,为荜茇酰胺及其纳米给药系统在抗肿瘤作用中的进一步研究及肿瘤治疗领域的发展应用提供参考借鉴。