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Current Status of Anti-Aging Medicine, Especially Involving Management of the Menopause, as a Component of Complementary and Alternative Medicine in Korea 抗衰老药物的现状,特别是涉及管理更年期,在韩国补充和替代医学的一个组成部分
Pub Date : 2009-01-01 DOI: 10.3793/JAAM.6.95
Hyun Kim, Hoon Kim, Jung-Ho Shin, S. Ku
Recently, many developing countries have had changes in the composition of population and have become aging societies. Therefore, anti-aging medicine which is believed to have beneficial effect on the risk factors of geriatric associated diseases has been paid much attention. Complementary and alternative medicine (CAM) has been widely accepted by the general population, and is consequently known to account for a large share of health care costs in many countries.Hormone therapy (HT) is the gold standard to alleviate menopausal symptoms, but only 2.3% of Korean menopausal women are on HT. Many other women seek alternative means, including Korean traditional medicine, phytoestrogen-containing products such as black cohosh, soy (isoflavone), Dong quai, Ginseng, and evening primrose oil. Bioidential hormone therapy (BHT) is HT with individually compounded recipes of steroids in various doses. Its efficacy is yet to be confirmed and the risks of developing endometrial hyperplasia and breast cancer have been reported. Other CAM methods involving lifestyle and behavioral interventions include exercise, caloric restriction, weight reduction, and ‘mind-body medicine (homeopathy).’ Dermatologic, plastic, and ophthalmologic interventions have been introduced through the exhibition, as well.Physicians have ignored this novel trend of patients preference to ‘natural hormonal therapy,’ however, they should be aware of the pros and cons of CAM and be able to guide their patients to make right choices. Clinical trials, and the evaluation of every CAM practice should be undertaken.
近年来,许多发展中国家的人口结构发生了变化,进入了老龄化社会。因此,抗衰老药物被认为对老年相关疾病的危险因素有有益的影响,受到了人们的广泛关注。补充和替代医学(CAM)已被普通民众广泛接受,因此在许多国家占卫生保健费用的很大一部分。激素治疗(HT)是缓解更年期症状的金标准,但在韩国,只有2.3%的更年期妇女接受激素治疗。许多其他妇女寻求替代方法,包括韩国传统药物、含有植物雌激素的产品,如黑升麻、大豆(异黄酮)、东葵、人参和月见草油。生物同质激素疗法(BHT)是用不同剂量的类固醇单独合成的疗法。其疗效尚未得到证实,但有报道称其有发生子宫内膜增生和乳腺癌的风险。其他涉及生活方式和行为干预的CAM方法包括锻炼、热量限制、减肥和“身心药物”(顺势疗法)。此外,展览还介绍了皮肤、整形和眼科的干预措施。医生们忽视了患者偏好“天然激素疗法”的新趋势,然而,他们应该意识到辅助激素疗法的利弊,并能够指导患者做出正确的选择。应该进行临床试验,并对每一种辅助医学实践进行评估。
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引用次数: 1
Effect of Double Filtration Plasmapheresis (DFPP) in Male Patients with Borderline Hyper-LDL-cholesterolemia : Lipid Removal and Inflammation Suppression 双滤过血浆置换(DFPP)在男性临界高ldl -胆固醇血症患者中的作用:脂质去除和炎症抑制
Pub Date : 2009-01-01 DOI: 10.3793/JAAM.6.32
S. Hibino, Y. Seok, H. Tsuda, Y. Yonei
Objective: Double filtration plasmapheresis (DFPP) removal of LDL cholesterol (LDL-C) and other pathogenic substances in the blood has attracted attention as an effective treatment of arteriosclerotic lesions. We conducted a controlled open-label study to understand the physical and mental effects of DFPP.Methods: Seven (7) male patients with borderline hyper-LDL-C (134.0±41.1 mg/dL) were assigned to a DFPP group (age 43.0±5.3 years, BMI 26.0±4.5) and 7 others were assigned to a control group (age 39.1±11.4 years, BMI 28.9±8.1). The observation period was 8 weeks. Patients in the DFPP group received DFPP twice. The evaluation included the Anti-Aging QOL Common Questionnaire (AAQol) and the blood vessel tests of Pulse wave velocity (PWV) and ankle-brachial index (ABI).Results: Among physical symptoms in AAQol, “tired eyes,” “blurry eyes,” “stiff shoulders,” and “feeling of ill-health” significantly decreased after 8 weeks in the DFPP group. Hematology revealed that hemoglobin (+3.6%, p=0.047), total protein (+4.1%, p=0.019), and albumin (+4.9%, p=0.018) were maintained at higher levels after 8 weeks in the DFPP group than the control group. Despite LDL-C removal, the hepatic steatosis index ALT (+5.7%, p=0.008) and lipid metabolism index LDL-C (+11.6%, p=0.012) were apparently higher in the DFPP group. Endocrinology showed a decreasing trend of DHEA-s (−13.7%, p=0.003), increasing trend of cortisol (+27.5%, p=0.005), and increasing trend of progesterone (+50%, p=0.030) in the DFPP group compared with the control group. High-sensitivity CRP tended to decrease in the DFPP group compared with the control group (−26.5%, p=0.030). There was no significant change in PWV or ABI in the DFPP group. No serious adverse events were caused by DFPP.Conclusion: LDL-C removal by DFPP might suppress inflammation and improve tissue environment in visceral adipose and liver tissues with fatty deposits.
目的:双滤过血浆置换(DFPP)去除血液中低密度脂蛋白胆固醇(LDL- c)等致病物质作为一种治疗动脉硬化病变的有效方法受到了广泛关注。我们进行了一项对照开放标签研究,以了解DFPP对身体和心理的影响。方法:7例边缘性高ldl - c(134.0±41.1 mg/dL)男性患者分为DFPP组(年龄43.0±5.3岁,BMI 26.0±4.5),7例为对照组(年龄39.1±11.4岁,BMI 28.9±8.1)。观察期8周。DFPP组患者接受2次DFPP治疗。评价方法包括抗衰老生活质量问卷(AAQol)、脉搏波速度(PWV)、踝肱指数(ABI)等血管指标。结果:在AAQol的躯体症状中,DFPP组在8周后“眼疲劳”、“眼模糊”、“肩僵”和“感觉不健康”明显减少。血液学结果显示,DFPP组8周后血红蛋白(+3.6%,p=0.047)、总蛋白(+4.1%,p=0.019)和白蛋白(+4.9%,p=0.018)维持在高于对照组的水平。尽管去除了LDL-C,但DFPP组肝脏脂肪变性指数ALT (+5.7%, p=0.008)和脂质代谢指数LDL-C (+11.6%, p=0.012)明显升高。内分泌方面,与对照组相比,DFPP组DHEA-s呈下降趋势(- 13.7%,p=0.003),皮质醇呈上升趋势(+27.5%,p=0.005),孕酮呈上升趋势(+50%,p=0.030)。与对照组相比,DFPP组高敏CRP有下降趋势(- 26.5%,p=0.030)。DFPP组PWV和ABI无明显变化。DFPP未发生严重不良事件。结论:DFPP去除LDL-C可抑制内脏脂肪和肝脏脂肪沉积组织的炎症反应,改善组织环境。
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引用次数: 4
Nutritional Education and Exercise Treatment Based on Cognitive Behavioral Treatment in the Saku Control Obesity Program (SCOP) 基于认知行为治疗的营养教育和运动治疗在Saku控制肥胖计划(SCOP)中的应用
Pub Date : 2008-01-01 DOI: 10.3793/JAAM.5.39
N. Aiba, Shaw Watanabe, A. Morita, Naomi Suda, H. Taguchi, M. Miyachi
BACKGROUND: Long-term weight loss is difficult to maintain, but recently cognitive behavioral therapy has been shown to be effective for long-term weight loss and maintenance.METHODS: The 119 participants, who had been assigned to program to lose weight, were interviewed by dieticians regarding their motivation for weight loss and psychological status and self-corrected problems with their eating activities and exercises, following recognition of problems, discussing solutions, and devising personal dietary plans and exercise plan to loose weight at 1.0-2.0 kg per month.RESULTS: In women, the prevalence of motivation to resolve the situation (n = 44, 84.6%) was significantly higher than that of men (n = 33, 67.3%; p < 0.05). In men, awareness of the need to keep healthy by oneself was significantly associated with the motivation to resolve the situation (p = 0.002) and the availability of support from others (p = 0.004). Thirty problems and 29 dietary goals were set by participants. The percentages of intake of alcohol (p < 0.05) and intake of sweets (p < 0.01) as the problems and decrease of intake in specified foods (p < 0.01) and snacks (p = 0.05) as dietary goals were significantly different between men and women. Women with BMI over 31 kg/m² set fewer additional steps as exercise goals than those with BMI under 29 kg/m² (p < 0.05).CONCLUSIONS: The characters of subjects such as psychological status and the problems and the target recognized by participants were different between gender and the degree of obesity.
背景:长期减肥很难维持,但最近认知行为疗法已被证明对长期减肥和维持有效。方法:对入选减肥计划的119名参与者进行减肥动机和心理状态访谈,通过饮食活动和运动自我纠正问题,认识问题,讨论解决方案,制定个人饮食计划和运动计划,以每月1.0-2.0 kg的速度减肥。结果:在女性中,解决问题动机的患病率(n = 44, 84.6%)显著高于男性(n = 33, 67.3%;P < 0.05)。在男性中,意识到自己需要保持健康与解决问题的动机(p = 0.002)和获得他人支持的可能性(p = 0.004)显著相关。参与者设定了30个问题和29个饮食目标。以摄入酒精(p < 0.05)和甜食(p < 0.01)为问题,以减少特定食物(p < 0.01)和零食(p = 0.05)为饮食目标的比例在男女之间存在显著差异。体重指数超过31 kg/m²的女性比体重指数低于29 kg/m²的女性设定的额外锻炼步数更少(p < 0.05)。结论:被试的心理状态、存在的问题及认知目标等特征在性别和肥胖程度上存在差异。
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引用次数: 3
Age-related macular degeneration (AMD); From pathogenesis and approved therapies to proposed treatments for prevention 年龄相关性黄斑变性(AMD);从发病机制和已批准的治疗方法到建议的预防治疗
Pub Date : 2008-01-01 DOI: 10.3793/JAAM.5.87
Y. Ozawa, S. Ishida, K. Tsubota
Age-related macular degeneration (AMD) is one of the most severe vision-threatening diseases. Wet AMD, caused by choroidal neovascularization (CNV), progresses rapidly, while dry AMD, characterized by neural retinal atrophy followed by choroidal vascular atrophy, progresses slowly. In addition to systemic risk factors, such as a high body-mass index (BMI), smoking, hypertension, and atherosclerosis, light-induced local oxidative stress and inflammation promotes AMD. CNV can be induced by multiple pathways. The accumulation of lipofuscin, a product of the undigested outer segments of photoreceptor cells, causes chronic local inflammation. Extracellular lipoprotein deposits, which contain pro-inflammatory components, such as complement, can trigger local inflammation. A single nucleotide polymorphism (SNP) in some genes; i.e., complement factor H (CFH) and excision repair cross-complementing rodent repair deficiency complementation group 6 (ERCC6), which induce local inflammation, is a risk factor for AMD. Two treatments, photodynamic therapy (PDT) and anti-vascular endothelial growth factor (VEGF) therapy, have been approved worldwide to cause the regression of CNV. In addition, the suppression of CNV progression combined with retinal neural protection by anti-oxidative reagents such as lutein/zeaxanthin and/or docosahexaenoic acid / eicosapentaenoic acid (DHA/EPA) is a promising prospective therapeutic approach. This is the subject of an ongoing prospective, randomized, double-blind, multicenter clinical trial, the Age-Related Eye Disease Study 2 (AREDS2). In addition, molecular and biological analyses in animal models have provided data supporting this anti-oxidant therapy.
年龄相关性黄斑变性(AMD)是最严重的视力威胁疾病之一。由脉络膜新生血管(CNV)引起的湿性AMD进展迅速,而以神经视网膜萎缩继发脉络膜血管萎缩为特征的干性AMD进展缓慢。除了身体质量指数(BMI)高、吸烟、高血压和动脉粥样硬化等系统性危险因素外,光诱导的局部氧化应激和炎症也会促进AMD的发生。CNV可通过多种途径诱导。脂褐素是感光细胞外段未消化的产物,它的积累会引起慢性局部炎症。细胞外脂蛋白沉积含有促炎成分,如补体,可引发局部炎症。某些基因的单核苷酸多态性(SNP);即补体因子H (CFH)和切除修复交叉补体啮齿动物修复缺陷补体组6 (ERCC6)可引起局部炎症,是AMD的危险因素。光动力疗法(PDT)和抗血管内皮生长因子(VEGF)治疗是目前世界范围内公认的两种治疗CNV的方法。此外,通过叶黄素/玉米黄质和/或二十二碳六烯酸/二十碳五烯酸(DHA/EPA)等抗氧化试剂抑制CNV进展并联合视网膜神经保护是一种很有前景的前瞻性治疗方法。这是一项正在进行的前瞻性、随机、双盲、多中心临床试验的主题,即年龄相关眼病研究2 (AREDS2)。此外,动物模型的分子和生物学分析也提供了支持这种抗氧化疗法的数据。
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引用次数: 3
Effect of a Supplement Containing Olive Leaf Extract against Ultraviolet Light-Induced Tanning: A Double-Blind Placebo-Controlled Study 含有橄榄叶提取物的补充剂对紫外线诱导的晒黑的影响:一项双盲安慰剂对照研究
Pub Date : 2008-01-01 DOI: 10.3793/JAAM.5.78
I. Kaneko, T. Chiba, Kohsuke Hayamizu, T. Tsuji
Numerous studies have been conducted to research substances useful for preventing or reducing pigmentation in the skin. Pigment spot is a serious cosmetic concern, particularly for the Asian elderly. Oral ingestion of antioxidant supplements is known to prevent skin pigmentation. Glutathione is an intracellular antioxidant that plays an important role in cell protection against oxidative stress and shows antimelanogenic activity. In our previous study, it was shown that olive leaf extract stimulated intracellular glutathione synthesis in human fibroblasts, melanocytes and keratinocytes. Here, a double-blind placebo-controlled study was performed to investigate whether the ingestion of a supplement containing olive leaf extract, L-cystine and ascorbic acid affects tanning of skin induced by ultraviolet (UV) irradiation. We determined the minimal erythema dose (MED) in 24 healthy volunteers before and after supplementation. Small sites on the subjects'arms were exposed to UV light for three successive days, and subjects were then administered tablets containing 47.7 mg olive leaf extract, 40.0 mg L-cystine and 50.0 mg ascorbic acid every day for 8 weeks. The present study showed that the subjects'MED increased significantly after an 8-week course of supplementation. The increment of skin lightness at the sites of UV irradiation from Day 10 to Day 17 was significantly higher in the test sample group than in subjects who received a placebo. These results suggest that the supplement containing olive leaf extract, L-cystine and ascorbic acid reduces UV-induced erythema and tanning by its antioxidative activity.
已经进行了大量的研究来研究防止或减少皮肤色素沉着的物质。色素斑是一个严重的美容问题,尤其是对亚洲老年人来说。口服抗氧化剂补充剂可以防止皮肤色素沉着。谷胱甘肽是一种细胞内抗氧化剂,在细胞抗氧化应激和抗黑素生成中起重要作用。在我们之前的研究中,我们发现橄榄叶提取物刺激了人成纤维细胞、黑色素细胞和角化细胞的细胞内谷胱甘肽合成。本研究进行了一项双盲安慰剂对照研究,以调查摄入含有橄榄叶提取物、l -胱氨酸和抗坏血酸的补充剂是否会影响紫外线照射诱导的皮肤晒黑。我们测定了24名健康志愿者在补充前后的最小红斑剂量(MED)。受试者手臂上的小部位连续三天暴露在紫外线下,然后每天给受试者服用含有47.7 mg橄榄叶提取物、40.0 mg l -胱氨酸和50.0 mg抗坏血酸的片剂,持续8周。本研究表明,在8周的补充疗程后,受试者的med显著增加。从第10天到第17天,测试样本组在紫外线照射部位的皮肤亮度增量明显高于接受安慰剂的受试者。上述结果表明,橄榄叶提取物、l -胱氨酸和抗坏血酸通过其抗氧化活性降低了紫外线诱导的红斑和晒黑。
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引用次数: 2
Polymorphism of myospryn is associated with left ventricular diastolic dysfunction myospryn基因多态性与左室舒张功能障碍有关
Pub Date : 2008-01-01 DOI: 10.3793/JAAM.5.49
Y. Kikuchi, H. Nakagami, T. Katsuya, R. Morishita, T. Horio, K. Kamide, T. Miyata, Y. Kawano, Y. Takami, H. Rakugi, Y. Kaneda, T. Ogihara
BACKGROUND: With aging, left ventricle diastolic dysfunction due to pressure overload is an independent risk factor for morbidity and mortality. Mechanisms by which alterations in stretch-induced mechanotransduction contribute to left ventricular diastolic dysfunction remain unclear. Recently, since novel Z-disc related protein, myospryn, expressed in striated muscle cells, has been reported, we examined the relationship between myospryn polymorphisms and alterations in cardiac function with patients in larger population. METHODS: A total of 743 patients with high blood pressure (defined as systolic blood pressure >140 mmHg and/or systolic blood pressure >90 mmHg or taking antihypertensive medication) were enrolled in this study. Two-dimensional ultrasound echocardiography, electrocardiography, blood pressure, serum glucose, cholesterol, creatinine, uric acid, and myospryn K2906N polymorphism. RESULTS: The myospryn K2906N polymorphism was significantly associated with a marker of left ventricular diastolic cardiac dysfunction, A/E, which represents the ratio of the peak velocity of the early diastolic filling wave (E wave) to the atrial filling (A wave). CONCLUSIONS: These data demonstrated that a polymorphism of myospryn was associated with left ventricular diastolic dysfunction in hypertensive patients and provided the novel therapeutic target for cardiac adaptation in response to pressure overload as an anti-aging therapy.
背景:随着年龄的增长,压力过载引起的左心室舒张功能障碍是发病率和死亡率的独立危险因素。拉伸诱导的机械转导改变导致左室舒张功能障碍的机制尚不清楚。最近,由于新的z盘相关蛋白myospryn在横纹肌细胞中表达,我们在更大的人群中研究了myospryn多态性与心功能改变之间的关系。方法:共有743例高血压患者(定义为收缩压>140 mmHg和/或收缩压>90 mmHg或服用降压药)纳入本研究。二维超声心动图、心电图、血压、血糖、胆固醇、肌酐、尿酸、肌spryn K2906N多态性。结果:myospryn K2906N多态性与左室舒张期心功能障碍标志物a /E显著相关,a /E表示舒张期早期充盈波(E波)与心房充盈波(a波)的峰值速度之比。结论:这些数据表明,myospryn多态性与高血压患者左室舒张功能障碍有关,并为心脏适应压力过载作为抗衰老治疗提供了新的治疗靶点。
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引用次数: 0
Japanese Anthropometric Reference Data - Special Emphasis on Bioelectrical Impedance Analysis of Muscle Mass 日本人体测量参考数据-特别强调肌肉质量的生物电阻抗分析
Pub Date : 2008-01-01 DOI: 10.3793/JAAM.5.63
Y. Yonei, Y. Miwa, S. Hibino, Yoko Takahashi, R. Miyazaki, Toshikazu Yoshikawa, H. Moriwaki, Tsutomu Hasegawa, T. Hiraishi, Kazuhisa Torii
Faculty of Life and Medical Sciences, Doshisha University 1-3, Tatara Miyakotani, Kyotanabe, Kyoto 610-0321, Japan Tel: +81-774-65-6394 / FAX: +81-774-65-6394 / E-mail: yyonei@mail.doshisha.ac.jp Anti-Aging Medicine 5 (6) : 63-72, 2008 (c) Japanese Society of Anti-Aging Medicine Original Article Japanese Anthropometric Reference Data – Special Emphasis on Bioelectrical Impedance Analysis of Muscle Mass
日本同社大学生命与医学科学学院1-3,宫谷Tatara, Kyotanabe, Kyoto 610-0321, Japan Tel: +81-774-65-6394 / FAX: +81-774-65-6394 / E-mail: yyonei@mail.doshisha.ac.jp Anti-Aging Medicine 5 (6): 63- 72,2008 (c) Japan Society of Anti-Aging Medicine原创文章日本人体测量参考数据-特别强调肌肉质量的生物电阻抗分析
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引用次数: 39
The Use of a Uniaxial Accelerometer to Assess Physical-activity-related Energy Expenditure in Obese Men and Women: Saku Control Obesity Program (SCOP) 使用单轴加速度计评估肥胖男性和女性与体力活动相关的能量消耗:Saku控制肥胖计划(SCOP)
Pub Date : 2008-01-01 DOI: 10.3793/JAAM.5.1
M. Miyachi, Yumi Ohmori, Kenta Yamamoto, H. Kawano, H. Murakami, A. Morita, Shaw Watanabe
INTRODUCTION: Energy expenditure (EE) associated with physical activity is negatively correlated with prevalence of obesity and related diseases, and exercise plays a major role in prevention and treatment of these diseases. We determined baseline daily step-count and physical activity-related energy expenditure (PAEE) in 230 obese subjects (40-64 years old) participating in the Saku Control Obesity Program. The secondary purpose of this study was to determine the association between abdominal fat and amount of physical activity. METHODS: Daily step-count and PAEE were measured using a uniaxial accelerometer. The subjects wore the uniaxial accelerometer on their belt from the time they woke up until going to bed for 2 weeks. Adjusted PAEE (METs·h/day) was calculated based on daily PAEE and body weight.RESULTS AND CONCLUSIONS: Daily step-count, PAEE, and adjusted PAEE were 7,815±3,211 (mean±SD) steps/day, 258±115 kcal/day, and 3.09±1.38 METs·h/day, respectively. There were no significant differences in daily step-count or adjusted PAEE between men and women. Daily step-count and adjusted PAEE were somewhat lower than the reference values for the quantity of physical activity for health promotion (8,000-10,000 steps/day and 3.3 METs·h/day) established by the Ministry of Health, Labour, and Welfare of Japan. BMI, visceral fat area, and abdominal circumference were negatively and weakly correlated with daily step-count and adjusted PAEE (r=−0.13 to −0.19, P<0.05 to 0.01). These results suggest that the amount of physical activity assessed by uniaxial accelerometry is partially associated with not only systemic obesity but also abdominal obesity.
与身体活动相关的能量消耗(EE)与肥胖及相关疾病的患病率呈负相关,运动在预防和治疗这些疾病中起着重要作用。我们确定了230名肥胖受试者(40-64岁)参加Saku控制肥胖计划的基线每日步数和体力活动相关能量消耗(PAEE)。这项研究的第二个目的是确定腹部脂肪和运动量之间的关系。方法:采用单轴加速度计测量每日步数和PAEE。受试者从醒来到上床睡觉都在腰带上佩戴单轴加速度计,持续两周。调整后的PAEE (METs·h/day)是根据每日PAEE和体重计算的。结果与结论:每日步数、PAEE和调整后的PAEE分别为7,815±3,211 (mean±SD) steps/day、258±115 kcal/day和3.09±1.38 METs·h/day。男性和女性在每日步数或调整后的PAEE方面没有显著差异。每日步数和调整后的PAEE略低于日本厚生劳动省制定的促进健康的身体活动量参考值(8,000-10,000步/天和3.3 METs·h/天)。BMI、内脏脂肪面积和腹围与每日步数和调整后的PAEE呈负相关和弱相关(r= - 0.13 ~ - 0.19, P<0.05 ~ 0.01)。这些结果表明,单轴加速度计评估的体力活动量不仅与全身性肥胖有关,而且与腹部肥胖有关。
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引用次数: 5
Herbal extracts inhibit Maillard reaction, and reduce chronic diabetic complications risk in streptozotocin-induced diabetic rats 中药提取物抑制链脲佐菌素诱导的糖尿病大鼠美拉德反应,降低慢性糖尿病并发症风险
Pub Date : 2008-01-01 DOI: 10.3793/JAAM.5.93
Y. Yonei, M. Yagi, S. Hibino, N. Matsuura
Objectives: Accumulation of end-stage products of the Maillard reaction, also called advanced glycation end products (AGEs), is a hallmark of aging and the pathogenesis of chronic diabetic complications. The aim of this study was to determine whether safe and effective substances contained in four extracts of foodstuffs might slow the development of diabetic complications as well as slow the progression of aging.Design: We evaluated the in-vitro activity of four extracts of dried herbs available in Japan (Anthemis nobilis, Crataegus oxyacantha, Houttuynia coradata, Vitis vinifera) and a mixture of these to inhibit the Maillard reaction. We also assessed whether a 12-week feeding of mixed herbal extract (MHE) admixed in MF chow to streptozotocin (STZ)-induced diabetic rats prevented the development of diabetic complications.Results: Each of the four herbal extracts as well as the mixed extract dose-dependently inhibited the generation of Maillard reaction products in vitro with a potency similar to that of aminoguanidine (AG), a drug used for treating diabetic complications. Furthermore, after a 12-week, MHE supplemental feeding to STZ-induced diabetic rats, serum pentosidine and Ne-(carboxymethyl)lysine levels and wet weight of the kidney tended to decrease. MHE elicited AG-like actions and produced an inhibitory effect on pentosidine generation at lower concentrations than those observed for AG.Conclusion: Through the inhibition of the Maillard reaction, MHE may slow the development of chronic diabetic complications as well as slow the progression of aging.
目的:美拉德反应终末期产物的积累,也称为晚期糖基化终末产物(AGEs),是衰老和慢性糖尿病并发症发病机制的标志。这项研究的目的是确定四种食品提取物中所含的安全有效的物质是否可以减缓糖尿病并发症的发展以及延缓衰老的进程。设计:我们评估了日本四种干燥草本植物(野菊、山楂、鱼尾草、葡萄)及其混合物的体外活性,以抑制美拉德反应。我们还评估了给链脲佐菌素(STZ)诱导的糖尿病大鼠喂食12周的混合草药提取物(MHE)是否能预防糖尿病并发症的发生。结果:四种草药提取物及混合提取物均能以剂量依赖性抑制美拉德反应产物的产生,其抑制作用与氨基胍(AG)相似,AG是一种治疗糖尿病并发症的药物。此外,在12周后,MHE补充给stz诱导的糖尿病大鼠,血清戊sidine和Ne-(羧甲基)赖氨酸水平和肾脏湿重有降低的趋势。MHE诱导了AG样作用,并在较低浓度下对戊苷的生成产生抑制作用。结论:MHE可能通过抑制美拉德反应,减缓慢性糖尿病并发症的发生,减缓衰老进程。
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引用次数: 16
Localization of caspase 12 in masseter muscle of mdx mice during regeneration mdx小鼠咬肌再生过程中caspase 12的定位
Pub Date : 2008-01-01 DOI: 10.3793/JAAM.5.53
S. Abe
The mdx mouse, a model of muscular dystrophy, lacks dystrophin, a cell membrane protein. It is known that this lack of dystrophin results in muscle fiber necrosis from 2 weeks after birth, and the majority of necrotic fibers are replaced by regenerated fibers by 4 weeks of age. Recent studies reported the detection of mitochondrial and endoplasmic reticulum stress proteins during muscle fiber necrosis in mdx mice, but did not histologically localize them to determine the timing of their expression during the process from cell necrosis to regeneration. Therefore, in this study, we investigated histological localization and gene-level expression in the mdx mouse masseter muscle of caspase-12 protein (among the caspases, which are cell stress-related genes) involved in the endoplasmic reticulum stress pathway. We observed caspase-12 expression in muscle cells that seemed to be in the process of necrosis in the mdx mouse masseter muscle at 2 weeks after birth, but not in regenerated muscle cells with centrally located nuclei observed at 3 to 4 weeks of age. These results suggest that due to the lack of dystrophin, it becomes difficult for muscle cells to maintain their morphology, and endoplasmic reticulum stress occurs to maintain cell morphology during the process of cell necrosis.
mdx小鼠是一种肌肉萎缩模型,缺乏肌营养不良蛋白,一种细胞膜蛋白。众所周知,这种肌营养不良蛋白的缺乏导致出生后2周的肌纤维坏死,大部分坏死纤维在4周龄时被再生纤维所取代。最近的研究报道了mdx小鼠肌纤维坏死过程中线粒体和内质网应激蛋白的检测,但没有对它们进行组织学定位,以确定它们在细胞坏死到再生过程中的表达时间。因此,在本研究中,我们研究了参与内质网应激途径的caspase-12蛋白(caspase是细胞应激相关基因中的一种)在mdx小鼠咬肌中的组织定位和基因水平表达。我们在出生后2周的mdx小鼠咬肌中观察到caspase-12在肌细胞中表达,这些肌细胞似乎处于坏死过程中,但在3至4周龄的再生肌细胞中没有caspase-12的表达。这些结果表明,由于缺乏肌营养不良蛋白,肌肉细胞难以维持其形态,在细胞坏死过程中发生内质网应激以维持细胞形态。
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Journal of anti-aging medicine
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