Formaldehyde,one of the most toxic organic compounds,is produced and processed in human cells.The level of human endogenous formaldehyde is maintained at a low concentration(0.01-0.08 mmol L-1 in blood) under physiolo...Formaldehyde,one of the most toxic organic compounds,is produced and processed in human cells.The level of human endogenous formaldehyde is maintained at a low concentration(0.01-0.08 mmol L-1 in blood) under physiological conditions,but the concentration increases during ageing(over 65 years old).Clinical trials have shown that urine formaldehyde concentrations are significantly different between elderly Alzheimer’s patients(n=91) and normal elderly volunteers(n=38)(P【0.001).Abnormally high levels of intrinsic formaldehyde lead to dysfunction in cognition such as learning decline and memory loss.Excess extracellular and intracellular formaldehyde could induce metabolic response and abnormal modifications of cellular proteins such as hydroxymethylation and hyperphosphorylation,protein misfolding,nuclear translocation and even cell death.This cellular response called formaldehyde stress is dependent upon the concentration of formaldehyde.Chronic impairments of the brain resulted from formaldehyde stress could be one of the mechanisms involved in the process of senile dementia during ageing.展开更多
目的:探讨益智聪脑颗粒联合盐酸多奈哌齐片对老年痴呆患者认知功能和行为能力的改善作用及其安全性。方法:将60例老年痴呆患者随机分为对照组22例和治疗组38例,对照组口服盐酸多奈哌齐片,每晚睡前服用5 mg,连续服用4周后改为10 mg,继续...目的:探讨益智聪脑颗粒联合盐酸多奈哌齐片对老年痴呆患者认知功能和行为能力的改善作用及其安全性。方法:将60例老年痴呆患者随机分为对照组22例和治疗组38例,对照组口服盐酸多奈哌齐片,每晚睡前服用5 mg,连续服用4周后改为10 mg,继续服12周;治疗组在对照组治疗基础上加用益智聪脑颗粒,每日1剂,温开水冲服,分2次服用,连服16周。服药期间停用有关其他抗痴呆和促智药。两组分别在治疗前和治疗16周后进行简易精神状态检查表(Mini-Mental State Examination,MMSE)、日常生活活动能力量表(Activity of Daily Living Scale,ADL)和临床痴呆评定量表(Clinical Dementia Rating,CDR)评分。并进行两组患者治疗后中医证候疗效比较。结果:对照组治疗后MMSE评分为(19.0±4.8)分,ADL评分为(31.2±10.3)分,治疗组MMSE评分为(21.8±3.5)分,ADL评分为(26.8±10.8)分,与对照组比较,差异均有统计学意义(P<0.05)。治疗后两组CDR评分比较,差异无统计学意义(P>0.05)。结论:益智聪脑颗粒联合多奈哌齐片可以显著改善老年痴呆患者的总体功能、认知障碍及日常生活能力,疗效优于单纯服用西药组。展开更多
基金supported by the National Basic Research Program of China (Grant Nos. 2010CB912303 and 2006CB500703)the National Natural Science Foundation of China (Grant No. 30970695) the Knowledge Innovation Project of Chinese Academy of Sciences (Grant Nos. KSCX2-YW-R-256 and CAS-KSCX2-YW-R-119)
文摘Formaldehyde,one of the most toxic organic compounds,is produced and processed in human cells.The level of human endogenous formaldehyde is maintained at a low concentration(0.01-0.08 mmol L-1 in blood) under physiological conditions,but the concentration increases during ageing(over 65 years old).Clinical trials have shown that urine formaldehyde concentrations are significantly different between elderly Alzheimer’s patients(n=91) and normal elderly volunteers(n=38)(P【0.001).Abnormally high levels of intrinsic formaldehyde lead to dysfunction in cognition such as learning decline and memory loss.Excess extracellular and intracellular formaldehyde could induce metabolic response and abnormal modifications of cellular proteins such as hydroxymethylation and hyperphosphorylation,protein misfolding,nuclear translocation and even cell death.This cellular response called formaldehyde stress is dependent upon the concentration of formaldehyde.Chronic impairments of the brain resulted from formaldehyde stress could be one of the mechanisms involved in the process of senile dementia during ageing.
文摘目的:探讨益智聪脑颗粒联合盐酸多奈哌齐片对老年痴呆患者认知功能和行为能力的改善作用及其安全性。方法:将60例老年痴呆患者随机分为对照组22例和治疗组38例,对照组口服盐酸多奈哌齐片,每晚睡前服用5 mg,连续服用4周后改为10 mg,继续服12周;治疗组在对照组治疗基础上加用益智聪脑颗粒,每日1剂,温开水冲服,分2次服用,连服16周。服药期间停用有关其他抗痴呆和促智药。两组分别在治疗前和治疗16周后进行简易精神状态检查表(Mini-Mental State Examination,MMSE)、日常生活活动能力量表(Activity of Daily Living Scale,ADL)和临床痴呆评定量表(Clinical Dementia Rating,CDR)评分。并进行两组患者治疗后中医证候疗效比较。结果:对照组治疗后MMSE评分为(19.0±4.8)分,ADL评分为(31.2±10.3)分,治疗组MMSE评分为(21.8±3.5)分,ADL评分为(26.8±10.8)分,与对照组比较,差异均有统计学意义(P<0.05)。治疗后两组CDR评分比较,差异无统计学意义(P>0.05)。结论:益智聪脑颗粒联合多奈哌齐片可以显著改善老年痴呆患者的总体功能、认知障碍及日常生活能力,疗效优于单纯服用西药组。
