Yeast hydrolysate induces longitudinal bone growth and growth hormone release in rats

This study investigated the growth promoting effects of yeast extract (YH) fed to Sprague‐Dawley male rats (3 weeks old) for 4 weeks. The negative (N)‐control and positive (P)‐control groups were given a daily oral administration of saline and foremilk (1 g/kg of BW), respectively, and the YH‐1 and YH‐2 groups were given daily administrations of YH (0.5 and 1 g/kg of BW, respectively). After 4 weeks, the YH‐1, YH‐2 and P‐control groups showed significant differences in the body weight gain compared with the N‐control group (p < 0.05). The YH‐1 and YH‐2 groups also had significantly different tibial bone growths (0.47 and 0.49 mm/day, respectively) and femur bone growths (0.52 and 0.53 mm/day, respectively) compared with the N‐control group (0.37 mm/day of tibial growth and 0.42 mm/day of femur growth) (p < 0.05). The YH‐1 and YH‐2 groups had significantly different growth plate (proximal epiphysis) height increments (0.62 and 0.56 mm, respectively) compared with the N‐control group (0.17 mm) (p < 0.05). Lastly, the YH‐1 and YH‐2 groups presented different growth hormone (GH) levels (1.77 and 2.10 ng/mL, respectively) than the N‐control group (0.82 ng/mL) (p < 0.05). YH administration increased longitudinal bone growth and GH secretion in rats. Consequently, YH may offer an improved ability to treat GH deficiency‐related disorders. Copyright © 2008 John Wiley & Sons, Ltd.     

曲克芦丁脑蛋白水解物注射液治疗急性脑梗死的随机、单盲和安慰剂对照研究

目的探讨曲克芦丁脑蛋白水解物注射液治疗急性脑梗死的疗效及安全性。方法选取符合入组条件的急性脑梗死患者456例,按1∶3比例随机分为对照组和治疗组,其中治疗组共342例给予曲克芦丁脑蛋白水解物注射液治疗14d,对照组共114例给予灭菌注射用水,两组基础治疗一致。主要疗效观察指标为两组患者发病90d时的改良Rankin量表评价分析无明显残障(0~2级)患者的比例,次要疗效指标为治疗7d、14d后美国国立卫生院神经功能缺损评分(NIHSS)评分较基线降低≥7分者所占百分比和治疗14d、发病后90d Barthel指数评价≥75分者所占百分比。结果治疗组发病90d后无明显残障病例(改良Rankin量表评分0~2级)百分比明显高于对照组(83.92%νs.69.3%,P0.01);用药14d时治疗组NIHSS评分降低≥7分者所占百分比明显高于对照组(31.37%νs.4.08%,P0.01);治疗组发病90d后Barthel指数≥75者所占百分比高于对照组(85.38%νs.76.32%,P0.05)。治疗组和对照组分别发生26例(7.28%)、11例(9.17%)不良反应(一般不良事件),组间比较差异无统计学意义(P0.05)。结论曲克芦丁脑蛋白水解物注射液可改善急性脑梗死患者的神经功能缺损程度,促进功能恢复,且不良反应少,安全性较好,值得临床推广。     

分子排阻色谱法测定水解蛋白注射液中高分子物质

目的:采用分子排阻色谱法测定水解蛋白注射液中小分子肽的分子量。方法:采用TSK-GEL G2000SWXL色谱柱(7.8mm×300 mm,5μm),以磷酸盐缓冲液(pH 6.8)(含0.1 mol.L-1Na2SO4与0.05%NaN3)为流动相,流速1.0 mL·min-1,柱温30℃,检测波长280 nm。结果:水解蛋白注射液中分子量大于胰岛素的高分子物质含量均在5%以下。结论:该方法简单,重现性好,可以作为控制水解蛋白注射液中高分子物质的方法。     

舒血宁联合脑蛋白水解物治疗急性脑梗死的疗效观察

目的:观察舒血宁注射液联合脑蛋白水解物治疗急性脑梗死的临床效果。方法:将70例急性脑梗死患者,随机分成治疗组与对照组,每组各35例,两组均常规给予拜阿斯匹林0.1 g,每日1次,尼莫地平20 mg每日3次口服;对照组主要药物为盐酸川芎嗪、胞二磷胆碱、右旋糖酐40等,疗程10~14d;治疗组在口服拜阿斯匹林、尼莫地平基础上,应用生理盐水100 mL+脑蛋白水解物60 mg、生理盐水250 mL+舒血宁20 mL静滴,10~14 d为一疗程。比较两组治疗前、后的血液流变学改变和疗效。结果:治疗组患者血流变学各指标在治疗前、后差异均有显著性意义(P<0.05)。治疗后14 d疗效评定,治疗组总有效率为88.57%,对照组总有效率为68.57%,两组比较差异有显著性意义(P<0.05)。结论:舒血宁注射液联合脑蛋白水解物治疗急性脑梗死比传统的低右+川芎嗪疗效更显著,且安全可靠。     

3种联合用药方案治疗急性脑梗死的成本-效果分析

目的：评价不同药物治疗方案在急性脑梗死治疗中的疗效及经济学效果。方法：114例急性脑梗死患者随机分成A、B、C组,每组38例,分别给予丹参注射液＋胞磷胆碱注射液、丹参川芎嗪注射液＋胞磷胆碱注射液、曲克芦丁脑蛋白水解物注射液＋丹参川芎嗪注射液＋胞磷胆碱注射液静滴,运用成本-效果分析法比较3种方案的疗效和成本。结果：A、B、C组成本分别为6 037.66元、6 575.95元、15 388.42元,总有效率分别为34.2%、65.8%、76.3%,成本-效果比分别为17 653.98、9 993.84、20 168.31,A、C组各出现1例消化道出血,经治疗痊愈,未见颅内出血者。结论：B组治疗方案较佳。     

桂哌齐特联合曲克芦丁脑蛋白水解物治疗急性脑梗死回顾性研究

目的:回顾性研究桂哌齐特注射液联合曲克芦丁脑蛋白水解物注射液治疗急性脑梗死的临床疗效。方法:70例急性脑梗死患者分为治疗组(36例)和对照组(34例),在常规疗法的基础上,对照组给予降纤酶注射液,ivd qd,连用14 d为一个疗程;治疗组给予马来酸桂哌齐特注射液320 mg、曲克芦丁脑蛋白水解物注射液10 ml,ivd qd;连用15 d后进行疗效评定。结果:治疗组和对照组总有效率分别为88.9%、85.3%,差异无统计学意义(P>0.05)。结论:马来酸桂哌齐特注射液联合曲克芦丁脑蛋白水解物注射液治疗急性脑梗死安全,有效。     

Purification of chicken breast protein hydrolysate and analysis of its antioxidant activity

Chicken breast protein was hydrolyzed by papain under optimal conditions. The antioxidant activity of the chicken breast protein hydrolysate was then evaluated in vitro and in vivo using different measurements, including reducing power and DPPH radical scavenging assays. The reducing power of the hydrolysate was 0.5 at 2.37 mg/mL. The DPPH radical scavenging assay showed that the EC₅₀ value of the hydrolysate was 1.28 mg/mL. In antioxidant assays in vivo, d-galactose-induced aging mice administrated the fraction peptides of chicken breast protein hydrolysate showed significantly increased antioxidant enzyme activities, while malondialdehyde levels decreased both in serums and livers. Under a transmission electron microscope (TEM), the ultramicrostructure of hepatic tissue was observed and we found that the hydrolysate may play a part in inhibiting oxidative stress in hepatocytes in vivo. Therefore, we concluded that chicken breast protein hydrolysate exhibits significant antioxidant activity.     

126例脑出血内科治疗疗效分析

目的：探讨采用不同的内科方法治疗脑出血的疗效。方法：126例脑出血患者采用不同的内科治疗方法进行治疗,高血压患者77例中,降压药治疗31例,非降压治疗46例;甘露醇脱水治疗87例·9脑苷肌肽与脑蛋白水解物治疗59例,其中脑苷肌肽治疗9例,脑蛋白水解物治疗50例;微创穿刺治疗18例,非微创穿刺治疗108例,对不同治疗方法的疗效进行比较。结果：126例患者治疗后有效110例（87．30％）,无效12例,死亡4例。降压药治疗有效率（87．10％）与非降压治疗有效率（93．48％）差异无统计学意义（P〉0．05）,甘露醇脱水每次用量250mL有效率（85．00％）与每次用量125mL有效率（86．57％）差异无统计学意义（P〉0．05）,脑苷肌肽治疗有效率（77．78％）与脑蛋白水解物治疗有效率（94．00％）差异无统计学意义（P〉0．05）,微创穿刺治疗有效率（88．89％）与非微创穿刺治疗有效率（87．04％）差异无统计学意义（P〉0．05）。结论：采用降压、脱水、微创穿刺及应用脑苷肌肽、脑蛋白水解物等脑保护剂类药物治疗脑出血具有一定的疗效。     

Effect of corn gluten and its hydrolysate consumptions on weight reduction in rats fed a high-fat diet

This study examined the effects of corn gluten (CG) and its hydrolysate consumptions on weight reduction in rats fed a high-fat diet. Eight-month-old male Sprague-Dawley rats (n=40) were fed a high-fat diet (40% calorie as fat) for 4 weeks. They were then randomly divided into four groups and fed the isocaloric diets with different protein sources for 8 weeks. The protein sources were casein (control group), intact CG (CG group), CG hydrolysate A (CGHA group, 30% of protein as peptides and 70% as free amino acids) and CG hydrolysate P (CGHP group, 93% of protein as peptides and 7% as free amino acids). Body weight gain, adipose tissue weights, nitrogen balance, absorptions of energy, protein and fat, lipid profiles in plasma, liver and feces and hepatic activities of carnitine palmitoyl transferase (CPT), fatty acid synthase (FAS), malic enzyme (ME) and glucose-6-phosphate dehydrogenase (G6PDH) were assessed. The CGHA diet had the highest amount of BCAAs, especially leucine, and most of them existed as free amino acid forms. The CGHA group showed significant weight reduction and negative nitrogen balance. Protein absorption and apparent protein digestibility in the CGHA group were significantly lower than those in other groups. Adipose tissue weights were the lowest in the CGHA group. Activity of CPT tended to be higher in the CGHA group than in other groups and those of FAS, ME and G6PDH were significantly lower in the CGHA group than in other groups. In conclusion, the CGHA diet which had relatively high amounts of free amino acids and BCAAs, especially leucine, had a weight reduction effect by lowering adipose tissue weight and the activities of FAS, ME and G6PDH in experimental animals, but it seemed to be a negative result induced by lowering protein absorption, increasing urinary nitrogen excretion and protein catabolism.     

复方丹参、脑蛋白水解物治疗HIE疗效观察

目的探讨复方丹参与脑蛋白水解物联合应用治疗新生儿缺氧缺血性脑病（HIE）的临床疗效。方法将新乡市中心医院自2007年2-11月人院治疗的新生儿缺氧缺血性脑病85例随机分为2组,对照组43例采用常规3项支持疗法和对症治疗,治疗组42例在对照组治疗基础上加用复方丹参注射液与脑蛋白水解物注射液联合应用,观察其疗效。结果治疗组总有效率为95.23％,对照组为76.74％,2组比较,差异有统计学意义（P〈0.05）。结论复方丹参注射液与脑蛋白水解物注射液联合应用治疗HIE疗效确切,值得推广。