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https://www.readbyqxmd.com/read/28529639/overexpression-of-insulin-like-growth-factor-1-enhanced-the-osteogenic-capability-of-aging-bone-marrow-mesenchymal-stem-cells
#1
Ching-Yun Chen, Kuo-Yun Tseng, Yen-Liang Lai, Yo-Shen Chen, Feng-Huei Lin, Shankung Lin
Many studies have indicated that loss of the osteoblastogenic potential in bone marrow mesenchymal stem cells (bmMSCs) is the major component in the etiology of the aging-related bone deficit. But how the bmMSCs lose osteogenic capability in aging is unclear. Using 2-dimentional cultures, we examined the dose response of human bmMSCs, isolated from adult and aged donors, to exogenous insulin-like growth factor 1 (IGF-1), a growth factor regulating bone formation. The data showed that the mitogenic activity and the osteoblastogenic potential of bmMSCs in response to IGF-1 were impaired with aging, whereas higher doses of IGF-1 increased the proliferation rate and osteogenic potential of aging bmMSCs...
2017: Theranostics
https://www.readbyqxmd.com/read/28527218/the-mechanisms-of-action-of-curcumin-in%C3%A2-alzheimer-s-disease
#2
Mengxi Tang, Changiz Taghibiglou
Alzheimer's disease (AD) is a neurodegenerative disorder of the elderly. As the prevalence of AD rises in the 21st century, there is an urgent need for the development of effective pharmacotherapies. Currently, drug treatments target the symptoms of the disease and do not modify or halt the disease progress. Thus, natural compounds have been investigated for their ability to treat AD. This review examines the efficacy of curcumin, a polyphenol derived from turmeric herb, to treat AD. We summarize the in vivo and in vitro research describing the mechanisms of action in which curcumin modifies AD pathology: curcumin inhibits the formation and promotes the disaggregation of amyloid-β plaques, attenuates the hyperphosphorylation of tau and enhances its clearance, binds copper, lowers cholesterol, modifies microglial activity, inhibits acetylcholinesterase, mediates the insulin signaling pathway, and is an antioxidant...
May 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28520468/the-hierarchy-of-brain-networks-is-related-to-insulin-growth-factor-1-in-a-large-middle-aged-healthy-cohort-an-exploratory-magnetoencephalography-study
#3
Pierpaolo Sorrentino, Dagmar Nieboer, Jos Twisk, Cornelis J Stam, Linda Douw, Arjan Hillebrand
Recently, a large study demonstrated that lower serum levels of insulin growth factor-1 (IGF-1) relate to brain atrophy and to greater risk for developing Alzheimer's disease in a healthy elderly population. We set out to test if functional brain networks relate to IGF-1 levels in the middle-aged. Hence, we studied the association between IGF-1 and magnetoencephalography-based functional network characteristics in a middle-aged population. The functional connections between brain areas were estimated for six frequency bands (delta, theta, alpha1, alpha2, beta, gamma) using the phase lag index (PLI)...
May 18, 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28511733/similarities-and-interactions-between-the-ageing-process-and-high-chronic-intake-of-added-sugars
#4
Eva Gatineau, Sergio Polakof, Dominique Dardevet, Laurent Mosoni
In our societies, the proportions of elderly people and of obese individuals are increasing. Both factors are associated with high health-related costs. During obesity, many authors suggest that it is a high chronic intake of added sugars (HCIAS) that triggers the shift towards pathology. However, the majority of studies were performed in young subjects and only a few were interested in the interaction with the ageing process. Our purpose was to discuss the metabolic effects of HCIAS, compare with the effects of ageing, and evaluate how deleterious the combined action of HCIAS and ageing could be...
May 17, 2017: Nutrition Research Reviews
https://www.readbyqxmd.com/read/28505476/gender-difference-in-the-association-between-lower-muscle-mass-and-metabolic-syndrome-independent-of-insulin-resistance-in-a-middle-aged-and-elderly-taiwanese-population
#5
You-Ci Ou, Hai-Hua Chuang, Wen-Cheng Li, I-Shiang Tzeng, Jau-Yuan Chen
BACKGROUND: Loss of muscle mass was reported to be associated with metabolic syndrome (MetS), but little is known about the gender difference. Thus, the aim of this study was to evaluate the relationship between lower muscle mass and MetS and determine whether there was any gender difference or not. METHODS: A total of 394 middle-aged and elderly Taiwanese adults (138 males and 256 females) were enrolled and completed our health survey. They were stratified into three groups according to appendicular skeletal muscle mass divided by weight...
May 8, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28502917/the-role-of-heparin-cofactor-%C3%A2-in-the-regulation-of-insulin-sensitivity-and-maintenance-of-glucose-homeostasis-in-humans-and-mice
#6
Kiyoe Kurahashi, Seika Inoue, Sumiko Yoshida, Yasumasa Ikeda, Kana Morimoto, Ryoko Uemoto, Kazue Ishikawa, Takeshi Kondo, Tomoyuki Yuasa, Itsuro Endo, Masato Miyake, Seiichi Oyadomari, Toshio Matsumoto, Masahiro Abe, Hiroshi Sakaue, Ken-Ichi Aihara
AIM: Accelerated thrombin action is associated with insulin resistance. It is known that upon activation by binding to dermatan sulfate proteoglycans, heparin cofactor Ⅱ(HCⅡ) inactivates thrombin in tissues. Because HCⅡ may be involved in glucose metabolism, we investigated the relationship between plasma HCⅡ activity and insulin resistance. METHODS AND RESULTS: In a clinical study, statistical analysis was performed to examine the relationships between plasma HCⅡ activity, glycosylated hemoglobin (HbA1c), fasting plasma glucose (FPG), and homeostasis model assessment-insulin resistance (HOMA-IR) in elderly Japanese individuals with lifestyle-related diseases...
May 15, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28502778/the-joint-association-of-insulin-sensitivity-and-physical-activity-on-the-skeletal-muscle-mass-and-performance-in-community-dwelling-older-adults
#7
Chuan-Wei Yang, Chia-Ing Li, Tsai-Chung Li, Chiu-Shong Liu, Chih-Hsueh Lin, Wen-Yuan Lin, Cheng-Chieh Lin
BACKGROUND: Many well-known risk factors that may lead to sarcopenia are already discovered. However, their combined effects on sarcopenia components remain unclear. This study aims to explore the joint association of physical activity and insulin sensitivity on skeletal muscle mass and performance of Taiwanese elder people from a metropolitan community. METHODS: The study sample involved 844 elders who were examined through dual energy X-ray absorptiometry and who underwent tests for fasting blood glucose and serum insulin level...
May 10, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28496312/body-mass-index-is-associated-with-type-2-diabetes-mellitus-in-chinese-elderly
#8
Qianping Zhao, Jari A Laukkanen, Qifu Li, Gang Li
BACKGROUND: There is limited information on the association between metabolic syndrome components including body mass index (BMI) and type 2 diabetes mellitus in elderly Chinese population. Therefore, we investigated whether components of metabolic syndrome are associated with type 2 diabetes mellitus in elderly. METHODS: A total of 479 hospitalized patients (aged 65-95 years) with recently diagnosed type 2 diabetes mellitus were studied retrospectively in a cross-sectional study and compared with 183 subjects with prediabetes and 62 subjects without glucose metabolism abnormalities...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28453944/dietary-intake-and-cardiometabolic-biomarkers-in-relation-to-insulin-resistance-and-hypertension-in-a-middle-aged-and-elderly-population-in-beijing-china
#9
Jia Wang, Zhongxin Hong, Li Wu, Bingjie Ding, Yanxia Bi, Zhongyi Gu, Wei Li
OBJECTIVE: To investigate the relationships of dietary intake and cardiometabolic biomarkers with insulin resistance and hypertension in rural middle-aged and elderly people in China. METHODS: One hundred and eight middle-aged and elderly adults were recruited in Zhangfang village in May 2014. We measured blood pressure, anthropometric parameters, and biochemical indexes, including high-sensitivity C-reactive protein (hsCRP), soluble intercellular adhesion molecule-1 (sICAM-1), glucose, insulin, and blood lipids...
April 28, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28444660/effects-of-cycling-and-exergaming-on-neurotrophic-factors-in-elderly-type-2-diabetic-men-a-preliminary-investigation
#10
Christian Brinkmann, Leonie Schäfer, Magd Masoud, Joachim Latsch, Daniel Lay, Wilhelm Bloch, Klara Brixius
Patients with type 2 diabetes mellitus (T2DM) are at increased risk of developing neurodegenerative diseases. There is growing evidence that repeated exercise-induced transient increases in neurotrophic factors can augment neurogenesis and neuroplasticity. This pilot study compares the effects of 30-min submaximal cycling with those of exergaming (combining exercise and video gaming) at the same duration and same rating of perceived exertion (BORG RPE: 14-15) on serum neurotrophic factors in 8 elderly non-insulin-dependent T2DM patients (71±4 years) (2×2 crossover design)...
April 25, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28443029/superior-effects-of-eccentric-to-concentric-knee-extensor-resistance-training-on-physical-fitness-insulin-sensitivity-and-lipid-profiles-of-elderly-men
#11
Trevor Chung-Ching Chen, Wei-Chin Tseng, Guan-Ling Huang, Hsin-Lian Chen, Kuo-Wei Tseng, Kazunori Nosaka
It has been reported that eccentric training of knee extensors is effective for improving blood insulin sensitivity and lipid profiles to a greater extent than concentric training in young women. However, it is not known whether this is also the case for elderly individuals. Thus, the present study tested the hypothesis that eccentric training of the knee extensors would improve physical function and health parameters (e.g., blood lipid profiles) of older adults better than concentric training. Healthy elderly men (60-76 years) were assigned to either eccentric training or concentric training group (n = 13/group), and performed 30-60 eccentric or concentric contractions of knee extensors once a week...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28437620/american-association-of-clinical-endocrinologists-and-american-college-of-endocrinology-guidelines-for-management-of-dyslipidemia-and-prevention-of-cardiovascular-disease
#12
Paul S Jellinger, Yehuda Handelsman, Paul D Rosenblit, Zachary T Bloomgarden, Vivian A Fonseca, Alan J Garber, George Grunberger, Chris K Guerin, David S H Bell, Jeffrey I Mechanick, Rachel Pessah-Pollack, Kathleen Wyne, Donald Smith, Eliot A Brinton, Sergio Fazio, Michael Davidson
OBJECTIVE: The development of these guidelines is mandated by the American Association of Clinical Endocrinologists (AACE) Board of Directors and American College of Endocrinology (ACE) Board of Trustees and adheres with published AACE protocols for the standardized production of clinical practice guidelines (CPGs). METHODS: Recommendations are based on diligent reviews of the clinical evidence with transparent incorporation of subjective factors, according to established AACE/ACE guidelines for guidelines protocols...
April 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28418191/evaluation-of-chinese-herbal-medicine-jinlida-in-type-2-diabetes-patients-based-on-stratification-results-of-subgroup-analysis-from-12-week-trial
#13
Jiaxing Tian, Fengmei Lian, Libo Yang, Xiaolin Tong
BACKGROUND: Previous study found that the Chinese Herbal Medicine Jinlida could significantly enhance the hypoglycemic action of metformin compared to metformin alone. However, the advantage of Jinlida has not been clarified yet. We aimed to compare the efficacy of Jinlida in patients with T2DM based on stratification. METHODS: Data were analyzed from a 12-week, randomized, placebo-controlled, double-blind, multicenter study of Jinlida. The efficacy evaluation included HbA1c, FPG and 2hPG levels stratified by baseline HbA1c, sex, age, BMI, and duration of DM diagnosis...
April 18, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28397367/continuous-glucose-monitoring-reveals-hypoglycemia-risk-in-elderly-patients-with-type-2-diabetes-mellitus
#14
Takahiro Ishikawa, Masaya Koshizaka, Yoshiro Maezawa, Minoru Takemoto, Yoshiharu Tokuyama, Toshihiro Saito, Koutaro Yokote
INTRODUCTION: The incidence of type 2 diabetes is higher in elderly patients, in whom this disease is associated with dementia, falling, stroke, and death. We utilized a continuous glucose monitoring (CGM) device to analyze the relationship between hypoglycemia and diabetes treatments to identify risk factors for hypoglycemia (defined as a blood glucose level <70 mg/dL). MATERIALS AND METHODS: We classified 170 patients aged ≥65 years with type 2 diabetes who were receiving steady-state medication (29 of whom were inpatients) into hypoglycemic and non-hypoglycemic groups, and compared their HbA1c levels, treatment types, continuous glucose monitoring data, and other parameters...
April 11, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28393573/persistence-with-rapid-acting-insulin-and-its-association-with-a1c-level-and-severe-hypoglycemia-among-elderly-patients-with-type-2-diabetes
#15
Usha Sambamoorthi, Rahul Garg, Arijita Deb, Tao Fan, Anders Boss
OBJECTIVE: To examine the persistence with rapid-acting insulin (RAI) and its association with clinical outcomes among elderly patients with type 2 diabetes (T2D). METHODS: This observational, retrospective cohort study analyzed RAI persistence and its association with change in A1C and risk of severe hypoglycemia among elderly (≥65 years) Medicare beneficiaries with T2D who added RAI to their basal insulin regimen. RESULTS: Among T2D patients with >1 RAI prescriptions (n = 3,927), only 21% were persistent...
April 10, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28389469/metabolic-syndrome-insulin-resistance-and-cognitive-dysfunction-does-your-metabolic-profile-affect-your-brain
#16
Jesper S Neergaard, Katrine Dragsbæk, Claus Christiansen, Henning B Nielsen, Susanne Brix, Morten A Karsdal, Kim Henriksen
Dementia and type 2 diabetes are both characterized by long prodromal phases challenging the study of potential risk factors and their temporal relation. The progressive relation between metabolic syndrome, insulin resistance, and dementia has recently been questioned, wherefore the aim of this study was to assess the potential association between these precursors of type 2 diabetes and cognitive dysfunction. Using data from the Prospective Epidemiological Risk Factor study (n=2,103), a prospective study of elderly women in Denmark, we found that impaired fasting plasma glucose was associated with 44% (9%-91%) larger probability of developing cognitive dysfunction...
April 7, 2017: Diabetes
https://www.readbyqxmd.com/read/28385552/intranasal-insulin-decreases-circulating-cortisol-concentrations-during-early-sleep-in-elderly-humans
#17
Matthias Thienel, Ines Wilhelm, Christian Benedict, Jan Born, Manfred Hallschmid
Aging is associated with increases in hypothalamic-pituitary-adrenal (HPA) axis activity that can predispose to metabolic and cognitive impairments. We investigated in elderly and young subjects whether intranasal insulin administration to the human brain reduces early-sleep nadir concentrations of adrenocorticotropin and cortisol, that is, indicators of baseline HPA axis activity. In within-subject comparisons, intranasal insulin (160 IU) or placebo was administered to 14 elderly (mean age 70.0 years) and 30 young (23...
June 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28384333/relationship-between-sleep-parameters-insulin-resistance-and-age-adjusted-insulin-like-growth-factor-1-score-in-non-diabetic-older-patients
#18
Sarah Damanti, Olivier Bourron, Mohamed Doulazmi, Anne-Laure Mandengue Sosso, Vi-Huong Nguyen-Michel, Jean Mariani, Kiyoka Kinugawa
BACKGROUND: Sleep complaints are prevalent in older patients. Sleepiness, short or long sleep duration and obstructive sleep apnea (OSA) are associated with insulin resistance (IR). These parameters have not yet been considered together in the same study exploring the possible association between IR and sleep in older patients. IR is involved in cardiovascular and metabolic diseases, pathologies which are highly prevalent in older patients. Here we assess, in older non-diabetic patients with sleep complaints, the associations between IR and sleep parameters objectively recorded by polysomnography (PSG) rather than self-report...
2017: PloS One
https://www.readbyqxmd.com/read/28382782/fatty-acid-binding-protein-4-regulates-fatty-infiltration-after-rotator-cuff-tear-by-hypoxia-inducible-factor-1-in-mice
#19
Yong-Soo Lee, Ja-Yeon Kim, Kyung-Soo Oh, Seok Won Chung
BACKGROUND: Fatty infiltration in skeletal muscle is directly linked to loss of muscle strength and is associated with various adverse physical outcomes such as muscle atrophy, inflammation, insulin resistance, mobility impairments, and even mortality in the elderly. Aging, mechanical unloading, muscle injury, and hormonal imbalance are main causes of muscle fat accumulation, and the fat cells are derived from muscle stem cells via adipogenic differentiation. However, the pathogenesis and molecular mechanisms of fatty infiltration in muscles are still not fully defined...
April 5, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28382551/high-doses-of-vitamin-c-plus-e-reduce-strength-training-induced-improvements-in-areal-bone-mineral-density-in-elderly-men
#20
Astrid Kamilla Stunes, Unni Syversen, Sveinung Berntsen, Gøran Paulsen, Tonje H Stea, Ken J Hetlelid, Hilde Lohne-Seiler, Mats Peder Mosti, Thomas Bjørnsen, Truls Raastad, Glenn Haugeberg
PURPOSE: Resistance training is beneficial for maintaining bone mass. We aimed to investigate the skeletal effects of high doses of antioxidants [vitamin C + E (α-tocopherol)] supplementation during 12-week supervised strength training in healthy, elderly men METHODS: Design: double-blinded randomized placebo-controlled study. Participants followed a supervised, undulating periodic exercise program with weekly adjusted load: 3 sessions/week and 3-15 repetitions maximum (RM) sets/exercise...
April 5, 2017: European Journal of Applied Physiology
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