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Chen HY, Ko ML, Chan HL. Effects of hyperglycemia on the TGF-β pathway in trabecular meshwork cells. Biochim Biophys Acta Gen Subj 2024; 1868:130538. [PMID: 38072209 DOI: 10.1016/j.bbagen.2023.130538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND Hyperglycemia, which can lead to apoptosis, hypertrophy, fibrosis, and induces hyperinflammation in diabetic vascular complications due to oxidative stress. In order to elucidate the potential dual roles and regulatory signal transduction of TGF-β1 and TGF-β2 in human trabecular meshwork cells (HTMCs), we established an oxidative cell model in HTMCs using 5.5, 25, 50, and 100 mM d-glucose-supplemented media and characterized the TGF-β-related oxidative stress pathway. METHODS Further analysis was conducted to investigate oxidative damage and protein alterations in the HTMC caused by the signal transduction. This was done through a series of qualitative cell function studies, such as cell viability/apoptosis analysis, intracellular reactive oxygen species (ROS) detection, analysis of calcium release concentration, immunoblot analysis to detect the related protein expression alteration, and analysis of cell fibrosis to study the effect of different severities of hyperglycemia. Also, we illustrated the role of TGF-β1/2 in oxidative stress-induced injury by shRNA-mediated knockdown or stimulation with recombinant human TGF-β1 protein (rhTGF-β1). RESULTS Results from the protein expression analysis showed that p-JNK, p-p38, p-AKT, and related SMAD family members were upregulated in HTMCs under hyperglycemia. In the cell functional assays, HTMCs treated with rhTGFβ-1 (1 ng/mL) under hyperglycemic conditions showed higher proliferation rates and lower ROS and calcium levels. CONCLUSIONS To summarize, mechanistic analyses in HTMCs showed that hyperglycemia-induced oxidative stress activated TGF-β1 along with its associated pathway. GENERAL SIGNIFICANCE While at low concentrations, TGF-β1 protects cells from antioxidation, whereas at high concentrations, it accumulates in the extracellular matrix, causing further HTMC dysfunction.
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Affiliation(s)
- Hsin-Yi Chen
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Mei-Lan Ko
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; Department of Ophthalmology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 300, Taiwan.
| | - Hong-Lin Chan
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan.
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2
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Xue P, Nôga DA, Benedict C. Sweet Dreams for Better Metabolic Health. J Clin Endocrinol Metab 2023; 108:e1743-e1744. [PMID: 37265231 PMCID: PMC10655528 DOI: 10.1210/clinem/dgad320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 05/30/2023] [Indexed: 06/03/2023]
Affiliation(s)
- Pei Xue
- Department of Pharmaceutical Biosciences, Uppsala University, 751 24 Uppsala, Sweden
| | - Diana A Nôga
- Department of Pharmaceutical Biosciences, Uppsala University, 751 24 Uppsala, Sweden
| | - Christian Benedict
- Department of Pharmaceutical Biosciences, Uppsala University, 751 24 Uppsala, Sweden
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3
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Pan Q, Wang X, Li W, Chen X, Zhuang Y, Zhou Q, Huang Y, Zhou Y, Lan L, Wang Z, Wang W, Hong J, Hao WH, Yang YT, Guo L. Pharmacokinetics, pharmacodynamics, and safety of prandial oral insulin (N11005) in healthy subjects. Front Endocrinol (Lausanne) 2023; 14:1172327. [PMID: 37564986 PMCID: PMC10411801 DOI: 10.3389/fendo.2023.1172327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 07/03/2023] [Indexed: 08/12/2023] Open
Abstract
Aims To verify whether the oral insulin N11005 is administered as a prandial insulin by assessing the pharmacokinetics (PK), pharmacodynamics (PD), and safety profiles of N11005 with a short-acting biosynthetic human insulin (Novolin R) as reference. Methods This was a randomized, open-label, single-dose, crossover hyperinsulinemic-euglycemic clamp study in healthy Chinese male subjects. A total of 12 subjects were enrolled in the test (T) group (N11005, 300 IU, p.o.) and the reference (R) group (Novolin R, 0.1 IU/Kg, i.h.) with a washout period of 14 days. All subjects were administered on the same day of the clamp study. Glucose Infusion Rates (GIR), serum insulin, and C-peptide concentration were determined during every 8-hour clamp cycle. Trial registration: Clinicaltrials.gov identifier NCT04975022. Results After administration, the ratios of mean serum C-peptide concentration to baseline concentration in both T and R groups were lower than 50%, which confirmed the stability of the clamp platform. T group (N11005) showed a more rapid onset of action (tGIR10%max≈11 min) and a comparable duration of action to the R group, which was basically in line with the characteristics of prandial insulins. No adverse events (AEs) occurred throughout the study, which demonstrated that N11005 and Novolin R are safe and well-tolerated. Conclusions The PD profiles of the single-dose N11005 in the human body are similar to those of prandial insulins, with an excellent safety profile. Clinical trial registration Clinicaltrials.gov, identifier NCT04975022.
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Affiliation(s)
- Qi Pan
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoxia Wang
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Wenjia Li
- Sunshine Lake Pharma Co., Ltd., Dongguan, China
| | | | | | | | - Yuhui Huang
- Sunshine Lake Pharma Co., Ltd., Dongguan, China
| | - Yijie Zhou
- Sunshine Lake Pharma Co., Ltd., Dongguan, China
| | - Li Lan
- Sunshine Lake Pharma Co., Ltd., Dongguan, China
| | - Zhijie Wang
- Sunshine Lake Pharma Co., Ltd., Dongguan, China
| | - Wenjia Wang
- Sunshine Lake Pharma Co., Ltd., Dongguan, China
| | - Juan Hong
- Sunshine Lake Pharma Co., Ltd., Dongguan, China
| | | | | | - Lixin Guo
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
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Khalili D, Khayamzadeh M, Kohansal K, Ahanchi NS, Hasheminia M, Hadaegh F, Tohidi M, Azizi F, Habibi-Moeini AS. Are HOMA-IR and HOMA-B good predictors for diabetes and pre-diabetes subtypes? BMC Endocr Disord 2023; 23:39. [PMID: 36788521 PMCID: PMC9926772 DOI: 10.1186/s12902-023-01291-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 02/01/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND To investigate the association between the Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) and Homeostasis Model Assessment of Beta-cell function (HOMA-B) with the incidence of diabetes and pre-diabetes subtypes. METHODS A total of 3101 normoglycemic people aged 20-70 years were included in the 6-year follow-up study. Multinomial logistic regression was used to calculate the incidence possibility of isolated Impaired Fasting Glucose (iIFG), isolated Impaired Glucose Tolerance (iIGT), Combined impaired fasting glucose & impaired glucose tolerance (CGI), and Diabetes Mellitus (DM) per standard deviation (SD) increment in HOMA-IR and HOMA-B in the crude and multivariable model. RESULTS In the multivariate model, an increase in one SD change in HOMA-IR was associated with a 43, 42, 75, and 92% increased risk of iIFG, iIGT, CGI, and DM, respectively. There was a positive correlation between the increase in HOMA-B and the incidence of iIGT; however, after adjusting the results for metabolic syndrome components, it was inversely correlated with the incidence of iIFG [Odds Ratio = 0.86(0.75-0.99)]. CONCLUSIONS HOMA-IR is positively correlated with diabetes and pre-diabetes subtypes' incidence, and HOMA-B is inversely correlated with the incidence of iIFG but positively correlated with iIGT incidence. However, none of these alone is a good criterion for predicting diabetes and pre-diabetes.
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Affiliation(s)
- Davood Khalili
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, 1985717413, Iran.
- Department of Biostatistics and Epidemiology, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Marjan Khayamzadeh
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, 1985717413, Iran
| | - Karim Kohansal
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, 1985717413, Iran
- Department of Biostatistics and Epidemiology, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Noushin Sadat Ahanchi
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, 1985717413, Iran
| | - Mitra Hasheminia
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, 1985717413, Iran
| | - Farzad Hadaegh
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, 1985717413, Iran
| | - Maryam Tohidi
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, 1985717413, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Siamak Habibi-Moeini
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Zhang X, Wu H, Fan B, Shi M, Lau ES, Yang A, Chow E, Kong AP, Chan JC, Ma RC, Luk AO. The role of age on the risk relationship between prediabetes and major morbidities and mortality: Analysis of the Hong Kong diabetes surveillance database of 2 million Chinese adults. THE LANCET REGIONAL HEALTH. WESTERN PACIFIC 2023; 30:100599. [PMID: 36419741 PMCID: PMC9677132 DOI: 10.1016/j.lanwpc.2022.100599] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND Intensive lifestyle modification showed variable success in the prevention of major clinical events and mortality among people with prediabetes. We propose that age may partly explain the heterogeneity and that health hazards related to prediabetes are age-specific. METHODS We conducted a retrospective analysis of a territory-wide diabetes surveillance dataset from the Hong Kong Hospital Authority between 2000 and 2019. Prediabetes was defined according to the American Diabetes Association criteria. Proportional Cox regression was performed, stratified by baseline age categories (20-39, 40-59, 60-79 and ≥80 years). FINDINGS 1,630,942 individuals were included in the analysis. Compared with normoglycaemia, prediabetes was associated with greater hazards for cardiovascular disease (CVD) and all-cause mortality in most age groups but the effect size attenuated with ascending age (p value for trend <0·05). In the youngest and in the oldest age categories, the respective hazard ratios (95% confidence interval) of prediabetes vs normoglycaemia were 1·79 (1·59, 2·01) and 1·00 (0·95, 1·05) for CVD, and 1·36 (1·20, 1·55) and 0·99 (0·97, 1·02) for all-cause mortality. Similar associations were found for chronic kidney disease, end-stage kidney disease, all-site cancer, all-site infection, subtypes of CVD, and cause-specific mortality. The associations became attenuated but remained after excluding people who later developed diabetes and adjusting for metabolic factors. Similar associations were observed in prediabetes defined by impaired fasting glucose, but not HbA1c. INTERPRETATION Prediabetes is associated with higher risk of major clinical events, even excluding subsequent development of diabetes and adjusting for metabolic factors. The risk relationships are stronger in young than older people. FUNDING This study did not receive any specific funding.
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Affiliation(s)
- Xinge Zhang
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Hongjiang Wu
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Baoqi Fan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Mai Shi
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Eric S.H. Lau
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Aimin Yang
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Elaine Chow
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Alice P.S Kong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Juliana C.N Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Ronald C.W Ma
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Andrea O.Y Luk
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
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Al-Shaheeb S, Kamil Hashim H, Kadhim Mohammed A, Abdulkareem Almashhadani H, Al Fandi A. Assessment of lipid profile with HbA1c in type 2 diabetic Iraqi patients. BIONATURA 2022. [DOI: 10.21931/rb/2022.07.04.69] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Insulin-induced hyperglycemia is the hallmark of diabetes mellitus (DM), including various metabolic disorders. Diabetic people are more likely to develop dyslipidemia, hypertension, and obesity. Type 2 diabetes (T2DM), the most common illness, is generally asymptomatic in its early stages and can go misdiagnosed for years. Diabetes screening may be beneficial in some cases since early identification and treatment can lessen the burden of diabetes and its consequences. This study aimed to find the relationship between Glycated hemoglobin (HbA1c) and lipid profile components in T2DM patients. Methods: This descriptive-analytical and cross-sectional study was performed on the control group and T2DM patients in Medical City in Baghdad between March and June 2021. A total of 90 patients with T2DM and 45 healthy control were included in this study. In the control group, healthy volunteer individuals participated. For all subjects, HbA1c, fasting blood sugar/FBS, and lipid profile (Total Cholesterol/TC, Triglyceride/TG, High-density Lipoprotein/HDL, Low-density Lipoprotein/LDL, and Very Low-density Lipoprotein/VLDL) were assessed. Among T2DM patients, 62.22% (n= 56) were male, and 37.78% (n= 34) were female. Mean ± SD levels of HbA1c, TC, TG, LDL, VLDL, HDL, and FBS were 7.33±0.56 % (168.21±9.23, 146.10±9.64, 137.23±8.32, 41.05±5.86, 43.85±6.17, and 208.81±52.1) mg/dl respectively in the T2DM group. In the control group, the Mean ± SD results of the same parameters were 4.91±0.27%, (171.20±3.57, 116.60±8.25, 105.05±2.11, 41.83±4.92, 44.04±5.54, 96.20±7.8) mg/dl respectively. Results demonstrated statistically significant differences between T2DM patients and control groups in HbA1c (p equal to 0.0025), TG (p equal to 0.015), LDL (p=0.0029), and FBS (p=0.02). Pearson correlation analysis of HbA1c with other variables showed a significant positive correlation with serum TC, TG, LDL, and FBS (r=0.573, P<0.01; r=0.655, P <0.001; r=0.498, P<0.05; r=0.691, P<0.001; respectively). At the same time, the data showed a negative connection between HbA1c and HDL (r= - 0.562, P<0.01). The findings of this study reveal that diabetic people do not have a satisfactory HbA1c level. Furthermore, HbA1c shows a significant correlation with TC, TG, LDL, and VLDL, whereas it has a significant negative correlation with HDL. The study's findings showed that HbA1c might be a useful marker for predicting dyslipidemia in T2DM patients.
Keywords: T2DM, Lipid profile, HbA1c.
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Affiliation(s)
- Sama Al-Shaheeb
- Medical technology institute-Baghdad, Middle technical university, Iraq
| | - Husham Kamil Hashim
- MOH ministry of health, medical city, national institute of teaching laboratories, Iraq
| | | | - Haider Abdulkareem Almashhadani
- Department of Medical Laboratory Techniques, Dijlah University College, Baghdad, 10021, Iraq, College of technical engineering, The Islamic University, Najaf, Iraq
| | - Ali Al Fandi
- Al-Rasheed University College, Dentistry Department, Baghdad, Iraq
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Al-Shaheeb S, Kamil Hashim H, Kadhim Mohammed A, Abdulkareem Almashhadani H, Al Fandi A. Assessment of lipid profile with HbA1c in type 2 diabetic Iraqi patients. BIONATURA 2022. [DOI: 10.21931/rb/2022.07.03.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Insulin-induced hyperglycemia is the hallmark of diabetes mellitus (DM), including various metabolic disorders. Diabetic people are more likely to develop dyslipidemia, hypertension, and obesity. Type 2 diabetes (T2DM), the most common illness, is generally asymptomatic in its early stages and can go misdiagnosed for years. Diabetes screening may be beneficial in some cases since early identification and treatment can lessen the burden of diabetes and its consequences. This study aimed to find the relationship between Glycated hemoglobin (HbA1c) and lipid profile components in T2DM patients. This descriptive-analytical and cross-sectional study was performed on the control group and T2DM patients in Medical City in Baghdad between March and June 2021. A total of 90 patients with T2DM and 45 healthy control were included in this study. In the control group, healthy volunteer individuals participated. For all subjects, HbA1c, fasting blood sugar/FBS, and lipid profile (Total Cholesterol/TC, Triglyceride/TG, High-density Lipoprotein/HDL, Low-density Lipoprotein/LDL, and Very Low-density Lipoprotein/VLDL) were assessed. Among T2DM patients 62.22% (n= 56) were male and 37.78% (n= 34) were female. Mean ± SD levels of HbA1c, TC, TG, LDL, VLDL, HDL, and FBS were 7.33±0.56 % (168.21±9.23, 146.10±9.64, 137.23±8.32, 41.05±5.86, 43.85±6.17, and 208.81±52.1) mg/dl respectively in the T2DM group. In the control group, the Mean ± SD results of the same parameters were 4.91±0.27%, (171.20±3.57, 116.60±8.25, 105.05±2.11, 41.83±4.92, 44.04±5.54, 96.20±7.8) mg/dl respectively. Results demonstrated statistically significant differences between T2DM patients and control groups in HbA1c (p equal to 0.0025), TG (p equal to 0.015), LDL (p=0.0029), and FBS (p=0.02). Pearson correlation analysis of HbA1c with other variables showed a significant positive correlation with serum TC, TG, LDL, and FBS (r=0.573, P<0.01; r=0.655, P <0.001; r=0.498, P<0.05; r=0.691, P<0.001; respectively). While the data showed a negative connection between HbA1c and HDL (r= - 0.562, P<0.01) The findings of this study reveal that diabetic people do not have a satisfactory HbA1c level. Furthermore, HbA1c shows a significant correlation with TC, TG, LDL, and VLDL, whereas it has a significant negative correlation with HDL. The study showed that HbA1c might be useful for predicting dyslipidemia in T2DM patients.
Keywords: T2DM, Lipid profile, HbA1c.
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Affiliation(s)
- Sama Al-Shaheeb
- Medical technology institute-Baghdad, Middle technical university, Iraq
| | - Husham Kamil Hashim
- MOH ministry of health, medical city, national institute of teaching laboratories, Iraq
| | | | - Haider Abdulkareem Almashhadani
- Department of Medical Laboratory Techniques, Dijlah University College, Baghdad, 10021, Iraq College of technical engineering, The Islamic University, Najaf, Iraq
| | - Ali Al Fandi
- Al-Rasheed University College, Dentistry Department, Baghdad, Iraq
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Shi LJ, Chagari B, An A, Chen MH, Bao Y, Shi W. Genetic Connection between Hyperglycemia and Carotid Atherosclerosis in Hyperlipidemic Mice. Genes (Basel) 2022; 13:genes13030510. [PMID: 35328064 PMCID: PMC8950324 DOI: 10.3390/genes13030510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/09/2022] [Accepted: 03/11/2022] [Indexed: 01/09/2023] Open
Abstract
Type 2 diabetes (T2D) is a major risk for atherosclerosis and its complications. Apoe-null (Apoe−/−) mouse strains exhibit a wide range of variations in susceptibility to T2D and carotid atherosclerosis, with the latter being a major cause of ischemic stroke. To identify genetic connections between T2D and carotid atherosclerosis, 145 male F2 mice were generated from LP/J and BALB/cJ Apoe−/− mice and fed 12 weeks of a Western diet. Atherosclerotic lesions in the carotid arteries, fasting, and non-fasting plasma glucose levels were measured, and genotyping was performed using miniMUGA arrays. Two significant QTL (quantitative trait loci) on chromosomes (Chr) 6 and 15 were identified for carotid lesions. The Chr15 QTL coincided precisely with QTL Bglu20 for fasting and non-fasting glucose levels. Carotid lesion sizes showed a trend toward correlation with fasting and non-fasting glucose levels in F2 mice. The Chr15 QTL for carotid lesions was suppressed after excluding the influence from fasting or non-fasting glucose. Likely candidate genes for the causal association were Tnfrsf11b, Deptor, and Gsdmc2. These results demonstrate a causative role for hyperglycemia in the development of carotid atherosclerosis in hyperlipidemic mice.
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Affiliation(s)
- Lisa J. Shi
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA; (L.J.S.); (B.C.); (A.A.); (M.-H.C.)
| | - Bilhan Chagari
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA; (L.J.S.); (B.C.); (A.A.); (M.-H.C.)
| | - Alexander An
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA; (L.J.S.); (B.C.); (A.A.); (M.-H.C.)
| | - Mei-Hua Chen
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA; (L.J.S.); (B.C.); (A.A.); (M.-H.C.)
| | - Yongde Bao
- Department of Microbiology, University of Virginia, Charlottesville, VA 22908, USA;
| | - Weibin Shi
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA; (L.J.S.); (B.C.); (A.A.); (M.-H.C.)
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, USA
- Correspondence:
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9
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Inoue K, Semba E, Yamakawa T, Terauchi Y. Associations of impaired glucose tolerance and sleep disorders with mortality among the US general population. BMJ Open Diabetes Res Care 2021; 9:9/1/e002047. [PMID: 34353879 PMCID: PMC8344283 DOI: 10.1136/bmjdrc-2020-002047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 07/08/2021] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Sleep disorders and short sleep duration are common symptoms among people with diabetes. However, the evidence is limited about the associations of post-challenge hyperglycemia and sleep quality or quantity with all-cause mortality in the US general population. RESEARCH DESIGN AND METHODS Our study included 8795 adults from the National Health and Nutrition Examination Survey 2005-2014. Mortality data were ascertained through 2015. Multivariable Cox proportional-hazards models were used to estimate adjusted HRs (aHRs) for all-cause mortality according to 2-hour plasma glucose levels during the 75 g oral glucose tolerance test-normal glucose tolerance (NGT), <140 mg/dL; impaired glucose tolerance (IGT), 140-199 mg/dL; and diabetes, ≥200 mg/dL. We then examined the associations of glucose tolerance status and self-reported physician-diagnosed sleep disorders (yes vs no) or sleep duration (<7 vs ≥7 hours) with all-cause mortality. RESULTS During follow-up (median, 5.6 years), the diabetes group had a higher risk of all-cause mortality compared with the NGT group (aHR (95% CI)=1.93 (1.41 to 2.64)), but not the IGT group (aHR (95% CI)=1.19 (0.90 to 1.59)). When we categorized participants according to glucose tolerance status and sleep disorders, the IGT group with sleep disorders had a higher risk of all-cause mortality (aHR (95% CI)=2.03 (1.24 to 3.34)) compared with the NGT group without sleep disorders. Both diabetes groups with and without sleep disorders also showed high mortality risks. The results were consistent when we used sleep duration instead of sleep disorders. CONCLUSIONS Using the most updated US national data, we found a high risk of all-cause mortality among individuals with IGT having sleep disorders or short sleep duration as well as those with diabetes. Future investigations are needed to identify whether and what kind of sleep management is beneficial for people with impaired glucose metabolism to prevent early death.
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Affiliation(s)
- Kosuke Inoue
- Department of Epidemiology, UCLA, Los Angeles, California, USA
- Department of Social Epidemiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Eriko Semba
- Department of Endocrinology and Diabetes, Yokohama City University Medical Center, Yokohama, Japan
| | - Tadashi Yamakawa
- Department of Endocrinology and Diabetes, Yokohama City University Medical Center, Yokohama, Japan
| | - Yasuo Terauchi
- Endocrinology and Metabolism, Yokohama City University, Yokohama, Japan
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Comparative effects of insulin glulisine and lispro on postprandial plasma glucose and lipid profile in Japanese patients with type 2 diabetes mellitus. Diabetol Int 2021; 12:330-335. [PMID: 34150441 DOI: 10.1007/s13340-020-00475-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/25/2020] [Indexed: 10/23/2022]
Abstract
Objective The control of postprandial plasma glucose (PPG) excursions is critical in the prevention of diabetic complications. Controversy remains on the differences in postprandial actions of insulin glulisine and lispro. The aim of this study was to define the differences in the efficacy of these two insulin analogues on PPG. Methods The study subjects were 20 in-hospital patients with type 2 diabetes mellitus (T2DM). Plasma glucose (PG) was tightly controlled with basal insulin and insulin glulisine or lispro, and then glulisine or lispro were switched to the other insulin analog every other day for 6 study days. PG was measured before breakfast and 0.5-, 1-, and 2 h-postprandial during the study. Postprandial plasma C-peptide and lipids were analyzed in the first 2 days of the study. Postprandial increments in each parameter were compared between glulisine and lispro. Results Whereas the median value of 0.5 h-Δ-PPG was comparable in glulisine and lispro, the 1 h-Δ-PPG was significantly lower with lispro than with glulisine (41 vs 53 mg/dl, respectively, p = 0.03). Similarly, the 2 h-Δ-PPG with lispro was 10 mg/dl lower than that with glulisine (35 vs 45 mg/dl, respectively, p = 0.05). In parallel with PPG, Δ-C-peptide at 1- and 2 h-postprandial were significantly lower with lispro than glulisine (0.50 vs 0.75 ng/ml, respectively, and 0.55 vs 0.75 ng/ml, respectively). The increment in LDL-C and HDL-C was significantly lower with lispro than with glulisine at 0.5 h-postprandial. Conclusion Insulin lispro seems superior to glulisine in the control of PPG in Japanese patients with T2DM.
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Fuller KNZ, Thyfault JP. Barriers in translating preclinical rodent exercise metabolism findings to human health. J Appl Physiol (1985) 2021; 130:182-192. [PMID: 33180643 PMCID: PMC7944931 DOI: 10.1152/japplphysiol.00683.2020] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/21/2020] [Accepted: 11/10/2020] [Indexed: 01/03/2023] Open
Abstract
Physical inactivity and low aerobic capacity are primary drivers of chronic disease pathophysiology and are independently associated with all-cause mortality. Conversely, increased physical activity and exercise are central to metabolic disease prevention and longevity. Although these relationships are well characterized in the literature, what remains incompletely understood are the mechanisms by which physical activity/exercise prevents disease. Given methodological constraints of clinical research, investigators must often rely on preclinical rodent models to investigate these potential underlying mechanisms. However, there are several key barriers to applying exercise metabolism findings from rodent models to human health. These barriers include housing temperature, nutrient metabolism, exercise modality, exercise testing, and sex differences. Increased awareness and understanding of these barriers will enhance the ability to impact human health through more appropriate experimental design and interpretation of data within the context of these factors.
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Affiliation(s)
- Kelly N Z Fuller
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas
| | - John P Thyfault
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas
- Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
- Research Service Kansas City Veterans Affairs Medical Center, Kansas City, Kansas
- Center for Children's Healthy Lifestyles and Nutrition, Kansas City, Missouri
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Chen HY, Ho YJ, Chou HC, Liao EC, Tsai YT, Wei YS, Lin LH, Lin MW, Wang YS, Ko ML, Chan HL. The Role of Transforming Growth Factor-Beta in Retinal Ganglion Cells with Hyperglycemia and Oxidative Stress. Int J Mol Sci 2020; 21:ijms21186482. [PMID: 32899874 PMCID: PMC7554964 DOI: 10.3390/ijms21186482] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/30/2020] [Accepted: 09/03/2020] [Indexed: 12/13/2022] Open
Abstract
A characteristic of diabetes mellitus is hyperglycemia, which is considered with an emphasis on the diabetic retinopathy of progressive neurodegenerative disease. Retinal ganglion cells (RGCs) are believed to be important cells affected in the pathogenesis of diabetic retinopathy. Transforming growth factor-beta (TGF-β) is a neuroprotective protein that helps to withstand various neuronal injuries. To investigate the potential roles and regulatory mechanisms of TGF-β in hyperglycemia-triggered damage of RGCs in vitro, we established RGCs in 5.5, 25, 50, and 100 mM D-glucose supplemented media and focused on the TGF-β-related oxidative stress pathway in combination with hydrogen peroxide (H2O2). Functional experiments showed that TGF-β1/2 protein expression was upregulated in RGCs with hyperglycemia. The knockdown of TGF-β enhanced the accumulation of reactive oxygen species (ROS), inhibited the cell proliferation rate, and reduced glutathione content in hyperglycemia. Furthermore, the results showed that the TGF-β-mediated enhancement of antioxidant signaling was correlated with the activation of stress response proteins and the antioxidant pathway, such as aldehyde dehydrogenase 3A1 (ALDH3A1), heme oxygenase-1 (HO-1), nuclear factor erythroid 2-related factor (Nrf2), and hypoxia-inducible factor (HIF-1α). Summarizing, our results demonstrated that TGF-β keeps RGCs from hyperglycemia-triggered harm by promoting the activation of the antioxidant pathway, suggesting a potential anti-diabetic therapy for the treatment of diabetic retinopathy.
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Affiliation(s)
- Hsin-Yi Chen
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (H.-Y.C.); (E.-C.L.); (Y.-T.T.); (Y.-S.W.); (L.-H.L.); (M.-W.L.); (Y.-S.W.)
| | - Yi-Jung Ho
- Department of Ophthalmology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 300, Taiwan;
| | - Hsiu-Chuan Chou
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan;
| | - En-Chi Liao
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (H.-Y.C.); (E.-C.L.); (Y.-T.T.); (Y.-S.W.); (L.-H.L.); (M.-W.L.); (Y.-S.W.)
| | - Yi-Ting Tsai
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (H.-Y.C.); (E.-C.L.); (Y.-T.T.); (Y.-S.W.); (L.-H.L.); (M.-W.L.); (Y.-S.W.)
| | - Yu-Shan Wei
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (H.-Y.C.); (E.-C.L.); (Y.-T.T.); (Y.-S.W.); (L.-H.L.); (M.-W.L.); (Y.-S.W.)
| | - Li-Hsun Lin
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (H.-Y.C.); (E.-C.L.); (Y.-T.T.); (Y.-S.W.); (L.-H.L.); (M.-W.L.); (Y.-S.W.)
| | - Meng-Wei Lin
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (H.-Y.C.); (E.-C.L.); (Y.-T.T.); (Y.-S.W.); (L.-H.L.); (M.-W.L.); (Y.-S.W.)
| | - Yi-Shiuan Wang
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (H.-Y.C.); (E.-C.L.); (Y.-T.T.); (Y.-S.W.); (L.-H.L.); (M.-W.L.); (Y.-S.W.)
| | - Mei-Lan Ko
- Department of Ophthalmology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 300, Taiwan;
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan;
- Correspondence: (M.-L.K.); (H.-L.C.); Tel.: +88-63-5326-151 (M.-L.K.); +88-63-5742-476 (H.-L.C.); Fax: +88-63-5324-584 (M.-L.K.); +88-63-5715-934 (H.-L.C.)
| | - Hong-Lin Chan
- Institute of Bioinformatics and Structural Biology & Department of Medical Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (H.-Y.C.); (E.-C.L.); (Y.-T.T.); (Y.-S.W.); (L.-H.L.); (M.-W.L.); (Y.-S.W.)
- Correspondence: (M.-L.K.); (H.-L.C.); Tel.: +88-63-5326-151 (M.-L.K.); +88-63-5742-476 (H.-L.C.); Fax: +88-63-5324-584 (M.-L.K.); +88-63-5715-934 (H.-L.C.)
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Tanimura-Inagaki K, Nagao M, Harada T, Sugihara H, Moritani S, Sasaki J, Kono S, Oikawa S. Sitagliptin improves plasma apolipoprotein profile in type 2 diabetes: A randomized clinical trial of sitagliptin effect on lipid and glucose metabolism (SLIM) study. Diabetes Res Clin Pract 2020; 162:108119. [PMID: 32194219 DOI: 10.1016/j.diabres.2020.108119] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 02/02/2020] [Accepted: 03/10/2020] [Indexed: 12/26/2022]
Abstract
AIM This study aims to evaluate the effect of dipeptidyl peptidase-4 inhibitors on lipid metabolism in patients with type 2 diabetes mellitus (T2D). METHODS This is a multicenter, open-labeled, randomized controlled study. T2D patients with HbA1c 6.9-8.9% (52-74 mmol/mol) who were under treatment with sulfonylurea were randomly allocated to either the sitagliptin group or the non-sitagliptin group. Glucose and lipid metabolism parameters including apolipoproteins (apo), sterols, and urinary albumin were assessed at baseline, 3, and 6 months of the treatment. RESULTS A total of 164 patients completed the 6-month observation (n = 81 for sitagliptin and n = 83 for non-sitagliptin). HbA1c decreased in the sitagliptin group but not in the non-sitagliptin group. Serum TG and total, LDL and HDL cholesterol levels did not change in either group. Apo B-48, apo CII, and apo CIII levels decreased in the sitagliptin group, but not in the non-sitagliptin group. The change in urinary albumin was significantly different between the groups with a preferable change in the sitagliptin group. There were no changes in serum sterols levels in the two groups. CONCLUSIONS The treatment of sitagliptin for 6 months improves the metabolism of glucose and chylomicron and reduces plasma levels of atherogenic lipoproteins in patients with T2D.
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Affiliation(s)
- Kyoko Tanimura-Inagaki
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Mototsugu Nagao
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Taro Harada
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Hitoshi Sugihara
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | | | - Jun Sasaki
- International University of Health and Welfare, Fukuoka, Japan
| | | | - Shinichi Oikawa
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan; Fukujuji Hospital, Tokyo, Japan.
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Short-term time-restricted feeding is safe and feasible in non-obese healthy midlife and older adults. GeroScience 2020; 42:667-686. [PMID: 31975053 DOI: 10.1007/s11357-020-00156-6] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 01/09/2020] [Indexed: 01/21/2023] Open
Abstract
Chronic calorie restriction (CR) improves cardiovascular function and several other physiological markers of healthspan. However, CR is impractical in non-obese older humans due to potential loss of lean mass and bone density, poor adherence, and risk of malnutrition. Time-restricted feeding (TRF), which limits the daily feeding period without requiring a reduction in calorie intake, may be a promising alternative healthspan-extending strategy for midlife and older adults; however, there is limited evidence for its feasibility and efficacy in humans. We conducted a randomized, controlled pilot study to assess the safety, tolerability, and overall feasibility of short-term TRF (eating <8 h day-1 for 6 weeks) without weight loss in healthy non-obese midlife and older adults, while gaining initial insight into potential efficacy for improving cardiovascular function and other indicators of healthspan. TRF was safe and well-tolerated, associated with excellent adherence and reduced hunger, and did not influence lean mass, bone density, or nutrient intake. Cardiovascular function was not enhanced by short-term TRF in this healthy cohort, but functional (endurance) capacity and glucose tolerance were modestly improved. These results provide a foundation for conducting larger clinical studies of TRF in midlife and older adults, including trials with a longer treatment duration.
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Ranjan K, Singh V, Tewarson SL. A study of microscopic changes in the placenta in gestational diabetes mellitus. J ANAT SOC INDIA 2020. [DOI: 10.4103/jasi.jasi_133_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Williams JS, Stimpson TV, Tremblay JC, Fenuta AM, Pyke KE. No impact of acute hyperglycaemia on arterial stiffness in the early and late follicular phases of the menstrual cycle in young females. Exp Physiol 2019; 105:174-183. [DOI: 10.1113/ep087899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 10/04/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Jennifer S. Williams
- Cardiovascular Stress Response Laboratory School of Kinesiology and Health Studies Queen's University Kingston Ontario Canada
| | - Taylor V. Stimpson
- Cardiovascular Stress Response Laboratory School of Kinesiology and Health Studies Queen's University Kingston Ontario Canada
| | - Joshua C. Tremblay
- Cardiovascular Stress Response Laboratory School of Kinesiology and Health Studies Queen's University Kingston Ontario Canada
| | - Alyssa M. Fenuta
- Human Vascular Control Laboratory School of Kinesiology and Health Studies Queen's University Kingston Ontario Canada
| | - Kyra E. Pyke
- Cardiovascular Stress Response Laboratory School of Kinesiology and Health Studies Queen's University Kingston Ontario Canada
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Xu H, Jia S, Xu H. Potential therapeutic applications of exosomes in different autoimmune diseases. Clin Immunol 2019; 205:116-124. [PMID: 31228581 DOI: 10.1016/j.clim.2019.06.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/13/2019] [Accepted: 06/17/2019] [Indexed: 02/07/2023]
Abstract
Autoimmune diseases are caused by self-immune responses to autoantigens, which damage body tissues and severely affect the patient's quality of life. Therapeutic drugs are associated with adverse side effects and their beneficial effects are limited to specific populations. Evidence indicates that exosomes which are small vesicles secreted by most cell types and body fluids, and may play roles in both immune stimulation and tolerance since they are involved in many processes such as immune signaling, inflammation and angiogenesis. Exosomes have also emerged as promising tools for therapeutic delivery, given their intrinsic features such as stability, biocompatibility and a capacity for stealth. In this review, we summarize existing literature regarding the production, efficacy, action mechanism, and potential therapeutic uses of exosomes in the contexts of autoimmune diseases such as type 1 diabetes mellitus, multiple sclerosis, systemic lupus erythematosus, rheumatoid arthritis, and Sjogren's syndrome.
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Affiliation(s)
- Hui Xu
- The Engineering Research Center of polypeptide Drug Discovery and Evaluation of Jiangsu Province, College of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Shaochang Jia
- Department of Bio-Treatment, Jinling Hospital, Nanjing, PR China.
| | - Hanmei Xu
- The Engineering Research Center of polypeptide Drug Discovery and Evaluation of Jiangsu Province, College of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China.
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Sun B, He F, Sun L, Zhou J, Shen J, Xu J, Wu B, Liu R, Wang X, Xu H, Chen X, Zhou H, Liu Z, Zhang W. Cause-specific risk of major adverse cardiovascular outcomes and hypoglycemic in patients with type 2 diabetes: a multicenter prospective cohort study. Endocrine 2019; 63:44-51. [PMID: 30121774 DOI: 10.1007/s12020-018-1715-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 08/09/2018] [Indexed: 02/05/2023]
Abstract
PURPOSE Glycated hemoglobin A1c (HbA1c) and fasting plasma glucose (FPG) was identified to account for the risk of cardiovascular diseases in type 2 diabetic patients, but no study evaluated the risk based on both HbA1c and FPG levels. We described the risk of major adverse cardiovascular events (MACE) and hypoglycemic in type 2 diabetic patients according to both HbA1c and FPG levels. METHODS With the usage of databases of Action in Diabetes and Vascular disease: preterAx and diamicroN-MR Controlled Evaluation (ADVANCE), 1815 patients from 61 centers in China was identified and grouped according to the criterion value of HbA1c and FPG: Good glycemic control (HbA1c < 6.5%, FPG < 6.1 mmol/L); Insufficient glycemic control (HbA1c < 6.5%, FPG ≥ 6.1 mmol/L or HbA1c ≥ 6.5%, FPG < 6.1 mmol/L); Poor glycemic control (HbA1c ≥ 6.5%, FPG ≥ 6.1 mmol/L). Time-varying multivariable Cox proportional hazards models were employed. RESULTS Average age was 64.8 ± 5.8 years, with a median of 4.8 years of follow-up. Overall, the incidence rates of MACE were 20.6 per 1000-person-years in Good glycemic control compared with 45.9 per 1000-person-years in Insufficient glycemic control (adjusted hazard ratio (aHR): 1.99; 95% CI 1.11-3.56; p = 0.02) and 54.7 per 1000-person-years in Poor glycemic control (aHR: 2.46; 95% CI 1.38-4.40; p = 0.002), respectively. The risk of hypoglycemic was highest in Insufficient glycemic control; 67.3 per 1000-person-years compared with 46.3 per 1000-person-years in Good glycemic control (aHR: 1.62; 95% CI 1.03-2.56; p = 0.04). Apart from this, we also observed that both MACE (aHR:1.41; 95% CI 1.13-1.77; p = 0.003) and hypoglycemic episodes (aHR: 1.82; 95% CI 1.48-2.24; p < 0.001) were sufficiently more frequent in the insulin-exposed group than the non-exposed group. In a post-hoc analysis, the risk of MACE (aHR:1.43; 95% CI 1.09-1.86; p = 0.01) and hypoglycemic (aHR: 1.99; 95% CI 1.46-2.69; p < 0.001) were more pronounced in Insufficient glycemic control with insulin exposure. CONCLUSIONS We observed a significant association of cause-specific risk of MACE and hypoglycemic with Insufficient glycemic control, particularly with insulin exposure.
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Affiliation(s)
- Bao Sun
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Fazhong He
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Lei Sun
- Data Analysis Technology Lab, School of Mathematics and Statistics, Henan University, Kaifeng, 475004, China
| | - Jiecan Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Jiayi Shen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Jing Xu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Bin Wu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Rong Liu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Xingyu Wang
- Beijing Hypertension League Institute, 24 Shijingshan Road, Beijing, 100043, China
| | - Heng Xu
- Department of Laboratory Medicine, National Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoping Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Honghao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Zhaoqian Liu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, China.
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of pharmacogenetics, Changsha, 410078, China.
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Hsu SHJ, Jang MH, Torng PL, Su TC. Positive Association Between Small Dense Low-Density Lipoprotein Cholesterol Concentration and Biomarkers of Inflammation, Thrombosis, and Prediabetes in Non-Diabetic Adults. J Atheroscler Thromb 2018; 26:624-635. [PMID: 30587667 PMCID: PMC6629751 DOI: 10.5551/jat.43968] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Aims: Recent studies suggest elevated levels of small dense low-density lipoprotein cholesterol (sdLDL-C) can predict the risk of incident coronary heart disease (CHD), even in individuals considered to be at low risk for cardiovascular disease(CVD) based on their LDL-C levels. This study aims to prospectively investigate the association between sdLDL-C concentration and traditional and nontraditional CHD risk markers to explore the underlying roles of sdLDL-C in atherogenic processes. Methods: Between 2009 and 2011, 594 healthy volunteers aged 35–65 years were recruited as control subjects in a study of work-related risk factors and acute CHD. All participants fasted for 12–14 h, and venous blood samples were collected in the morning to measure serum lipid profiles and other CHD-related markers. A standard oral glucose tolerance test was performed on all participants to assess their subclinical diabetes and prediabetes status. Results: There were significantly positive associations between sdLDL-C concentration and traditional (age, smoking and alcohol drinking habit, blood pressure, body mass index (BMI), serum lipid profiles, and diabetes status) and nontraditional risk factors (complete blood counts, (CBC), fibrinogen, high-sensitivity C-reactive protein, and subclinical diabetes status) for CVD. After adjusting for confounding variables which include age, gender, BMI, hypertension, household income, and smoking and alcohol drinking habits, all atherosclerotic risk markers except D-dimer were significantly and positively associated with sdLDL-C. Conclusions: Our data indicated sdLDL-C is strongly associated with atherosclerotic risk markers, such as inflammation, thrombosis, hematological markers, and prediabetes. This study supports the hypothesis that sdLDL-C is a promising CVD risk biomarker.
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Affiliation(s)
- Sandy Huey-Jen Hsu
- Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine
| | | | - Pao-Ling Torng
- Department of Obstetrics and Gynecology, National Taiwan University Hsin-Chu Branch
| | - Ta-Chen Su
- Departments of Internal Medicine and Environmental and Occupational Medicine, National Taiwan University.,Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health
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Ghari Arab A, Zahedi M, Kazemi Nejad V, Sanagoo A, Azimi M. Correlation between Hemoglobin A1c and Serum Lipid Profile in Type 2 Diabetic Patients Referred to the Diabetes Clinic in Gorgan, Iran. JOURNAL OF CLINICAL AND BASIC RESEARCH 2018. [DOI: 10.29252/jcbr.2.1.26] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Goel A, Yadav R. Management of diabetes in elderly. JOURNAL OF MAHATMA GANDHI INSTITUTE OF MEDICAL SCIENCES 2018. [DOI: 10.4103/jmgims.jmgims_9_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Menke A, Rust KF, Cowie CC. Diabetes based on 2-h plasma glucose among those classified as having prediabetes based on fasting plasma glucose or A1c. Diab Vasc Dis Res 2018; 15:46-54. [PMID: 29113512 DOI: 10.1177/1479164117739316] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE Determine the prevalence of diabetes using 2-h plasma glucose among people who otherwise would be categorized as having prediabetes based on A1c and fasting glucose, and to determine whether those people were more likely to have cardiometabolic risk factors. METHODS Among 3644 adults with prediabetes based on A1c and fasting glucose in the 2005-2014 National Health and Nutrition Examination Survey, a cross-sectional survey of the US general population, we estimated the percentage who would be categorized as having diabetes based on having a 2-h plasma glucose ⩾200 mg/dL. We calculated odds ratios of cardiometabolic risk factors associated with having 2-h plasma glucose ⩾200 mg/dL. RESULTS A total of 6.9% would be categorized as having diabetes based on 2-h plasma glucose. The adjusted odds ratios (95% confidence interval) associated with having 2-h plasma glucose ⩾200 mg/dL were significant for total hypertension (2.06, 1.35-3.14), high triglycerides (1.64, 1.10-2.44), low high-density lipoprotein cholesterol (1.55, 1.01-2.39), albuminuria (2.05, 1.33-3.14) and elevated alanine aminotransferase (1.78, 1.09-2.91), but not for other cardiometabolic risk factors. CONCLUSION A total of 6.9% of people categorized as having prediabetes based on A1c and fasting glucose would be categorized as having diabetes based on 2-h plasma glucose. They were more likely to have hypertension, high triglycerides, low high-density lipoprotein cholesterol, albuminuria and elevated alanine aminotransferase.
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Affiliation(s)
- Andy Menke
- 1 Social & Scientific Systems, Inc., Silver Spring, MD, USA
| | | | - Catherine C Cowie
- 3 National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
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Masnaghetti SE, Sarzi Braga S, Vaninetti R, Baiardi P, Pedretti RF. Altered fasting glycemia in cardiac patients during in-hospital rehabilitation. J Cardiovasc Med (Hagerstown) 2017; 18:625-630. [DOI: 10.2459/jcm.0000000000000478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Fuller KNZ, Summers CM, Valentine RJ. Effect of a single bout of aerobic exercise on high-fat meal-induced inflammation. Metabolism 2017; 71:144-152. [PMID: 28521867 DOI: 10.1016/j.metabol.2017.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 02/27/2017] [Accepted: 03/01/2017] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND AIMS Chronic low-grade inflammation is involved in the development of metabolic disorders including atherosclerosis, type 2 diabetes (T2D) and metabolic syndrome. Aerobic exercise has been shown to be anti-inflammatory and attenuate postprandial blood lipids, however, the effect of exercise on postprandial inflammation remains unclear. The aim of this study was to determine the protective effect of a single bout of aerobic exercise against postprandial lipemia and peripheral blood mononuclear cell (PBMC) inflammation and to evaluate associations with changes in the energy-sensing enzyme, AMP-activated protein kinase (AMPK). MATERIALS AND METHODS Healthy male subjects (n=12, age=23±2, %Fat=19±2) reported to the laboratory following an overnight fast (12-14h) on two separate occasions for consumption of a high-fat meal (HFM). Participants completed an acute bout of aerobic exercise the afternoon prior to one of the HFM visits. RESULTS AND CONCLUSION Results indicate that the single bout of moderate aerobic exercise increased AMPK signaling in PBMCs, as shown by increased phosphorylated acetyl-CoA carboxylase (p-ACC). This may be due to decreases in the AMPK inhibitory kinases PKD and GSK3β. Additionally, prior moderate intensity exercise decreased postprandial lipemia (PPL) and some mediators of the inflammatory pathway, such as p-NF-κB. These findings that acute aerobic exercise improves AMPK and NF-κB signaling in human PBMCs contribute support to the anti-inflammatory roles of exercise.
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Affiliation(s)
- Kelly N Z Fuller
- The Interdepartmental Graduate Program in Nutritional Sciences, Iowa State University, Ames, IA; Department of Kinesiology, Iowa State University, Ames, IA
| | - Corey M Summers
- Department of Kinesiology, Iowa State University, Ames, IA; The Immunobiology Interdepartmental Graduate Program, Iowa State University, Ames, IA
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Oberlin DJ, Mikus CR, Kearney ML, Hinton PS, Manrique C, Leidy HJ, Kanaley JA, Rector RS, Thyfault JP. One bout of exercise alters free-living postprandial glycemia in type 2 diabetes. Med Sci Sports Exerc 2017; 46:232-8. [PMID: 23872939 DOI: 10.1249/mss.0b013e3182a54d85] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
PURPOSE Elevated postprandial glycemic (PPG) excursions are significant risk factors for cardiovascular disease in type 2 diabetes patients. In this study, we tested if and for how many meals a single bout of exercise would reduce PPG responses to subsequent meals in type 2 diabetes (T2D) patients using a continuous glucose monitor system (CGMS). METHODS We recruited nine sedentary (<30 min·wk(-1) of exercise) individuals with T2D (mean ± SD; body mass index = 36.0 ± 1.1 kg·m(-2), age = 60.3 ± 1.0 yr, HbA1c = 6.3% ± 0.2%). The subjects consumed a eucaloric diet (51% carbohydrate, 31% fat, and 18% protein) consisting of three meals, identical in composition, for a 2-d period while wearing a continuous glucose monitor system in two different conditions (exercise [EX], one 60-min bout at 60%-75% of heart rate reserve performed before breakfast), vs a sedentary [SED] condition). We quantified 24-h average glucose, PPG area under the curve (AUC; 4-h glucose AUC after meals), and PPG-2 h (2 h postprandial glucose). RESULTS EX significantly reduced average [glucose] during the first 24-h period (P = 0.03). EX caused a reduction in PPG-AUC (P = 0.02) for all of the meals during the 2 d (main effect between conditions). A comparison between the EX and the SED conditions at each meal revealed that EX reduced PPG-AUC after the second meal of day 1 (lunch) (P = 0.04). PPG-2 h was not significantly different between EX and SED. CONCLUSIONS Although a single EX bout does lower 24-h average [glucose], it only significantly lowered PPG-AUC at the second meal after the bout, suggesting that daily exercise may be needed to most effectively improve PPG at the advent of exercise training in T2D patients.
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Affiliation(s)
- Douglas J Oberlin
- 1Departments of Nutrition and Exercise Physiology and Internal Medicine, University of Missouri, Columbia, MO; 2Division of Cardiology, Duke University Medical Center, Durham, NC; 3Division of Endocrinology, University of Missouri, Columbia, MO; 4Division of Gastroenterology and Hepatology, University of Missouri, Columbia, MO; and 5Harry S Truman Memorial VA Hospital, Columbia, MO
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Enzyme-free amperometric glucose sensor using a glassy carbon electrode modified with poly(vinyl butyral) incorporating a hybrid nanostructure composed of molybdenum disulfide and copper sulfide. Mikrochim Acta 2017. [DOI: 10.1007/s00604-016-2061-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Sudha Madhuri KV, Jyothi IV. A STUDY ON PLACENTAL MORPHOLOGY IN GESTATIONAL DIABETES. ACTA ACUST UNITED AC 2017. [DOI: 10.18410/jebmh/2017/14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Clemmer JS, Xiang L, Lu S, Mittwede PN, Hester RL. Hyperglycemia-Mediated Oxidative Stress Increases Pulmonary Vascular Permeability. Microcirculation 2016; 23:221-9. [PMID: 26749564 DOI: 10.1111/micc.12267] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 01/01/2016] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Hyperglycemia in diabetes mellitus is associated with endothelial dysfunction as evidenced by increased oxidative stress and vascular permeability. Whether impaired glucose control in metabolic syndrome impacts pulmonary vascular permeability is unknown. We hypothesized that in metabolic syndrome, hyperglycemia increases lung vascular permeability through superoxide. METHODS Lung capillary Kf and vascular superoxide were measured in the isolated lungs of LZ and OZ rats. OZ were subjected to 4 weeks of metformin treatment (300 mg/kg/day orally) to improve insulin sensitivity. In a separate experiment, lung vascular permeability and vascular superoxide were measured in LZ exposed to acute hyperglycemia (30 mM). RESULTS As compared to LZ, OZ had impaired glucose and insulin tolerance and elevated vascular superoxide which was associated with an elevated lung Kf. Chronic metformin treatment in OZ improved glucose control and insulin sensitivity which was associated with decreased vascular oxidative stress and lung Kf. Acute hyperglycemia in isolated lungs from LZ increased lung Kf, which was blocked with the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase inhibitor, apocynin (3 mM). Apocynin also decreased baseline Kf in OZ. CONCLUSIONS These data suggest that hyperglycemia in metabolic syndrome exacerbates lung vascular permeability through increases in vascular superoxide, possibly through NADPH oxidase.
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Affiliation(s)
- John S Clemmer
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Lusha Xiang
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Silu Lu
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Peter N Mittwede
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Robert L Hester
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA
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Huang Y, Cai X, Mai W, Li M, Hu Y. Association between prediabetes and risk of cardiovascular disease and all cause mortality: systematic review and meta-analysis. BMJ 2016; 355:i5953. [PMID: 27881363 PMCID: PMC5121106 DOI: 10.1136/bmj.i5953] [Citation(s) in RCA: 570] [Impact Index Per Article: 71.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To evaluate associations between different definitions of prediabetes and the risk of cardiovascular disease and all cause mortality. DESIGN Meta-analysis of prospective cohort studies. DATA SOURCES Electronic databases (PubMed, Embase, and Google Scholar). SELECTION CRITERIA Prospective cohort studies from general populations were included for meta-analysis if they reported adjusted relative risks with 95% confidence intervals for associations between the risk of composite cardiovascular disease, coronary heart disease, stroke, all cause mortality, and prediabetes. REVIEW METHODS Two authors independently reviewed and selected eligible studies, based on predetermined selection criteria. Prediabetes was defined as impaired fasting glucose according to the criteria of the American Diabetes Association (IFG-ADA; fasting glucose 5.6-6.9 mmol/L), the WHO expert group (IFG-WHO; fasting glucose 6.1-6.9 mmol/L), impaired glucose tolerance (2 hour plasma glucose concentration 7.8-11.0 mmol/L during an oral glucose tolerance test), or raised haemoglobin A1c (HbA1c) of 39-47 mmol/mol : (5.7-6.4%) according to ADA criteria or 42-47 mmol/mol (6.0-6.4%) according to the National Institute for Health and Care Excellence (NICE) guideline. The relative risks of all cause mortality and cardiovascular events were calculated and reported with 95% confidence intervals. RESULTS 53 prospective cohort studies with 1 611 339 individuals were included for analysis. The median follow-up duration was 9.5 years. Compared with normoglycaemia, prediabetes (impaired glucose tolerance or impaired fasting glucose according to IFG-ADA or IFG-WHO criteria) was associated with an increased risk of composite cardiovascular disease (relative risk 1.13, 1.26, and 1.30 for IFG-ADA, IFG-WHO, and impaired glucose tolerance, respectively), coronary heart disease (1.10, 1.18, and 1.20, respectively), stroke (1.06, 1.17, and 1.20, respectively), and all cause mortality (1.13, 1.13 and 1.32, respectively). Increases in HBA1c to 39-47 mmol/mol or 42-47 mmol/mol were both associated with an increased risk of composite cardiovascular disease (1.21 and 1.25, respectively) and coronary heart disease (1.15 and 1.28, respectively), but not with an increased risk of stroke and all cause mortality. CONCLUSIONS Prediabetes, defined as impaired glucose tolerance, impaired fasting glucose, or raised HbA1c, was associated with an increased risk of cardiovascular disease. The health risk might be increased in people with a fasting glucose concentration as low as 5.6 mmol/L or HbA1c of 39 mmol/mol.
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Affiliation(s)
- Yuli Huang
- Department of Cardiology, First People's Hospital of Shunde (Affiliated Hospital at Shunde, Southern Medical University), Foshan, 528300, China
| | - Xiaoyan Cai
- Clinical Medicine Research Centre, First People's Hospital of Shunde (Affiliated Hospital at Shunde, Southern Medical University), Foshan, China
| | - Weiyi Mai
- Department of Cardiology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Meijun Li
- Department of Cardiology, First People's Hospital of Shunde (Affiliated Hospital at Shunde, Southern Medical University), Foshan, 528300, China
- Department of Cardiology, Graduate College, Guangdong medical university, Zhanjiang, China
| | - Yunzhao Hu
- Department of Cardiology, First People's Hospital of Shunde (Affiliated Hospital at Shunde, Southern Medical University), Foshan, 528300, China
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Dempsey PC, Owen N, Yates TE, Kingwell BA, Dunstan DW. Sitting Less and Moving More: Improved Glycaemic Control for Type 2 Diabetes Prevention and Management. Curr Diab Rep 2016; 16:114. [PMID: 27699700 DOI: 10.1007/s11892-016-0797-4] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Epidemiological evidence indicates that excessive time spent in sedentary behaviours (too much sitting) is associated with an increased risk of type 2 diabetes (T2D). Here, we highlight findings of experimental studies corroborating and extending the epidemiological evidence and showing the potential benefits for T2D of reducing and breaking up sitting time across the whole day. We also discuss future research opportunities and consider emerging implications for T2D prevention and management. This new evidence is stimulating an expansion of diabetes-related physical activity guidelines-suggesting that in addition to moderate-vigorous physical activity, reducing and regularly interrupting prolonged sitting time is likely to have important and varied benefits across the spectrum of diabetes risk.
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Affiliation(s)
- Paddy C Dempsey
- Physical Activity, Behavioural Epidemiology, and Metabolic & Vascular Physiology Laboratories, Baker IDI Heart and Diabetes Institute, Level 4, 99 Commercial Rd, Melbourne, VIC 3004, Australia.
- Central Clinical School, Faculty of Medicine, Nursing & Health Sciences, Monash University, Melbourne, Australia.
| | - Neville Owen
- Physical Activity, Behavioural Epidemiology, and Metabolic & Vascular Physiology Laboratories, Baker IDI Heart and Diabetes Institute, Level 4, 99 Commercial Rd, Melbourne, VIC 3004, Australia
- Central Clinical School, Faculty of Medicine, Nursing & Health Sciences, Monash University, Melbourne, Australia
- Swinburne University of Technology, Melbourne, Australia
| | - Thomas E Yates
- Diabetes Research Centre, University of Leicester and NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester, UK
| | - Bronwyn A Kingwell
- Physical Activity, Behavioural Epidemiology, and Metabolic & Vascular Physiology Laboratories, Baker IDI Heart and Diabetes Institute, Level 4, 99 Commercial Rd, Melbourne, VIC 3004, Australia
- Central Clinical School, Faculty of Medicine, Nursing & Health Sciences, Monash University, Melbourne, Australia
| | - David W Dunstan
- Physical Activity, Behavioural Epidemiology, and Metabolic & Vascular Physiology Laboratories, Baker IDI Heart and Diabetes Institute, Level 4, 99 Commercial Rd, Melbourne, VIC 3004, Australia
- Central Clinical School, Faculty of Medicine, Nursing & Health Sciences, Monash University, Melbourne, Australia
- Mary MacKillop Institute of Health Research, Australian Catholic University, Melbourne, Australia
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Abletshauser C, Brunel P, Usadel KH, Hanefeld M. Effect of nateglinide and glimepiride in reducing postprandial hyperglycaemia in patients with type 2 diabetes mellitus. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/14746514050050020701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aim — The purpose of this study was to compare the effect of nateglinide on two-hour post-meal glucose levels with that of glimepiride in patients with type 2 diabetes mellitus. Methods — Glucose and insulin levels were measured during 14-hour profiles (comprising three meal challenges) and intravenous glucose tolerance tests performed before and after five-weeks of treatment with nateglinide (120 mg, a.c.) or glimepiride (1 mg, o.d.) in a randomised, two-centre, double-blind, crossover study in 26 patients with type 2 diabetes and fasting initial glucose levels < 13.9 mmol/L. Results — Mean two-hour postprandial glucose levels were significantly lower during nateglinide treatment than during glimepiride treatment (9.46 vs. 10.00 mmol/L, respectively; p<0.05). The 14-hour incremental glucose area under the curve was -2.2 mmol•h/L during nateglinide treatment and +6.2 mmol•h/L during glimepiride treatment (p<0.01). Nateglinide improved both the early insulin response during meals and the acute insulin response during intravenous glucose tolerance tests, restoring the biphasic insulin secretion pattern. Both insulin secretagogues improved intravenous glucose tolerance relative to the pre-treatment period, but only nateglinide restored a biphasic insulin profile. Conclusions — By restoring a more physiological post-load insulin response, nateglinide is more effective than glimepiride in controlling postprandial glucose excursions.
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Abstract
Type 2 diabetes mellitus is epidemic in most developed and many developing countries. The associated morbidity, mortality and high costs of care, make type 2 diabetes an important global public health challenge and target for prevention. Patients at high risk for type 2 diabetes can be diagnosed by fasting glucose levels or responses to an oral glucose tolerance test (OGTT). Such patients are also at increased risk for cardiovascular disease (CVD). Since obesity and physical inactivity are important risk factors for type 2 diabetes, lifestyle interventions, emphasising modest weight loss and increases in physical activity, should be recommended for most patients with pre-diabetes. Such interventions are safe and effective and also reduce risk factors for CVD. Several oral antidiabetic agents have been shown to be effective at delaying onset of type 2 diabetes. Thiazolidinediones (TZDs) reduced incident diabetes by ~60%, whilst metformin, acarbose and orlistat are only about half as effective as the TZDs. Pharmacological interventions may be appropriate for patients at particular risk for developing diabetes, but the benefits of treatment need to be balanced against the safety and tolerability of the intervention. If pharmacological treatment is warranted, metformin should be considered first because of its favourable overall safety, tolerability, efficacy, and cost profile.
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Affiliation(s)
- Richard E Pratley
- Diabetes and Metabolism Translational Medicine Unit, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Vermont College of Medicine,
| | - Glenn Matfin
- Division of Endocrinology and Diabetes, Department of Medicine, New York University School of Medicine, New York, USA
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Peterman JE, Morris KL, Kram R, Byrnes WC. Pedelecs as a physically active transportation mode. Eur J Appl Physiol 2016; 116:1565-73. [DOI: 10.1007/s00421-016-3408-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 05/31/2016] [Indexed: 11/24/2022]
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Bañuls C, Rovira-Llopis S, Falcón R, Veses S, Monzó N, Víctor VM, Rocha M, Hernández-Mijares A. Chronic consumption of an inositol-enriched carob extract improves postprandial glycaemia and insulin sensitivity in healthy subjects: A randomized controlled trial. Clin Nutr 2016; 35:600-7. [DOI: 10.1016/j.clnu.2015.05.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 05/13/2015] [Accepted: 05/13/2015] [Indexed: 11/24/2022]
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Brod M, Nikolajsen A, Weatherall J, Pfeiffer KM. Understanding Post-Prandial Hyperglycemia in Patients with Type 1 and Type 2 Diabetes: A Web-based Survey in Germany, the UK, and USA. Diabetes Ther 2016; 7:335-48. [PMID: 27233285 PMCID: PMC4900984 DOI: 10.1007/s13300-016-0175-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION To explore how patients with diabetes experience post-prandial hyperglycemia (PPH) or elevated blood glucose (BG) following a meal. METHODS A web-based survey of patients with type 1 or type 2 diabetes using bolus insulin in Germany, the USA, and the UK was conducted. RESULTS A total of 906 respondents completed the survey. PPH was a frequent occurrence among patients with type 1 and type 2 diabetes; 61.9% of respondents had experienced PPH in the past week, and differences by diabetes type were not significant. More than half of the respondents reported that they knew they were experiencing PPH because they had measured their BG (64.8%) and/or because they "just didn't feel right" (51.9%). The most frequently reported reasons given for PPH were eating more fat/sugar than estimated (31.2%) and over-eating in terms of their calculated bolus insulin dose (30.4%). The most common situations/factors contributing to PPH were stress (27.4%), eating at a restaurant (24.9%), being busy (21.1%), and/or feeling tired (19.2%). The most frequent corrective actions respondents took following PPH were testing BG and taking bolus insulin based on the reading (62.0%), and/or eating less/more carefully at their next meal or snack (18.8%). Additionally, significant differences in the reasons and contributing factors given for PPH and corrective actions following PPH, as well as emotions experienced when taking bolus insulin, were found by diabetes type. CONCLUSION These findings shed light on how patients with diabetes experience and manage PPH on a day-to-day basis and have implications for improving diabetes self-management. Clinicians and diabetes educators should help patients address eating habits and lifestyle issues that may contribute to PPH. FUNDING This study was sponsored by Novo Nordisk.
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Affiliation(s)
- Meryl Brod
- The Brod Group, 219 Julia Avenue, Mill Valley, CA, 94941, USA.
| | - Annie Nikolajsen
- Market Access, Payer Engagement, Novo Nordisk A/S, Vandtårnsvej 114, 2860, Søborg, Denmark
| | - James Weatherall
- Health Economic Outcomes Research, Novo Nordisk, Inc., 800 Scudders Mill Road, Plainsboro, NJ, USA
| | - Kathryn M Pfeiffer
- Health Outcomes Research, The Brod Group, 219 Julia Avenue, Mill Valley, CA, USA
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Brod M, Nikolajsen A, Weatherall J, Pfeiffer KM. The Economic Burden of Post-prandial Hyperglycemia (PPH) Among People with Type 1 and Type 2 Diabetes in Three Countries. Diabetes Ther 2016; 7:75-90. [PMID: 26899431 PMCID: PMC4801810 DOI: 10.1007/s13300-016-0154-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Indexed: 10/26/2022] Open
Abstract
INTRODUCTION Post-prandial hyperglycemia (PPH) among people with diabetes is a well-known clinical challenge to diabetes management. While the economic burden of diabetes is well studied, little is known about economic costs specific to PPH. The purpose of this study was to investigate costs of PPH related to work, diabetes management, and use of healthcare resources among people with diabetes taking bolus insulin. METHODS Data were collected in a web survey of 906 adults with type 1 (39%) and type 2 (61%) diabetes taking bolus insulin in Germany (34%), the UK (26%), and the USA (40%). RESULTS Sixty-two percent of respondents experienced PPH in the past week, and respondents averaged 1.7 episodes per week. Working respondents indicated that PPH affected their work productivity: 27% missed work time and 71% experienced work productivity issues while at work due to a recent episode of PPH. In terms of diabetes management, respondents with PPH in the past week measured their blood glucose (BG) more frequently than those without PPH (3.7 vs. 2.5 times/day, P < 0.001). PPH was also significantly associated with greater use of healthcare resources. Compared to those without PPH, respondents with PPH reported greater contact with healthcare professionals related to diabetes in the past year (5.5 vs. 4.4 visits, P < 0.001; 2.7 vs. 1.4 calls/emails, P < 0.001) and were more likely to report medical complications related to diabetes (72% vs. 55%, P < 0.001). Average annual costs associated with PPH due to missed work time, additional BG test strips, and physician visits were estimated to be $1239 USD per employed person in the USA. CONCLUSION Results indicate that PPH is associated with greater economic costs and that reducing the incidence of PPH would help mitigate such costs. Additional research is needed to better understand costs associated with PPH that may be more difficult to measure, as well as more long-term impacts and costs. FUNDING Novo Nordisk.
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Selvin E, Rawlings A, Lutsey P, Maruthur N, Pankow JS, Steffes M, Coresh J. Association of 1,5-Anhydroglucitol With Cardiovascular Disease and Mortality. Diabetes 2016; 65:201-8. [PMID: 26395741 PMCID: PMC4686946 DOI: 10.2337/db15-0607] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 09/16/2015] [Indexed: 12/16/2022]
Abstract
In diabetes, low concentrations of the biomarker 1,5-anhydroglucitol (1,5-AG) reflect hyperglycemic excursions over the prior 1-2 weeks. To the extent that hyperglycemic excursions are important in atherogenesis, 1,5-AG may provide independent information regarding cardiovascular risk. Nonetheless, few studies have evaluated associations of 1,5-AG with long-term cardiovascular outcomes in a population-based setting. We measured 1,5-AG in 11,106 participants in the Atherosclerosis Risk in Communities (ARIC) study without cardiovascular disease at baseline (1990-1992) and examined prospective associations with coronary heart disease (n = 1,159 events), ischemic stroke (n = 637), heart failure (n = 1,553), and death (n = 3,120) over 20 years of follow-up. Cox proportional hazards models were adjusted for demographic and cardiovascular risk factors. Compared with persons with 1,5-AG ≥6 μg/mL and no history of diabetes, persons with diabetes and 1,5-AG <6.0 μg/mL had an increased risk of coronary heart disease (HR 3.85, 95% CI 3.11-4.78), stroke (HR 3.48, 95% CI 2.66-4.55), heart failure (HR 3.50, 95% CI 2.93-4.17), and death (HR 2.44, 95% CI 2.11-2.83). There was a threshold effect, with little evidence for associations at "nondiabetic" concentrations of 1,5-AG (e.g., >10 μg/mL). Associations remained but were attenuated with additional adjustment for fasting glucose or HbA1c. These data add to the growing evidence for the prognostic value of 1,5-AG for long-term complications in the setting of diabetes.
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Affiliation(s)
- Elizabeth Selvin
- Department of Epidemiology and the Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD Division of General Internal Medicine, Department of Medicine, Johns Hopkins University, Baltimore, MD
| | - Andreea Rawlings
- Department of Epidemiology and the Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Pamela Lutsey
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN
| | - Nisa Maruthur
- Department of Epidemiology and the Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD Division of General Internal Medicine, Department of Medicine, Johns Hopkins University, Baltimore, MD
| | - James S Pankow
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN
| | - Michael Steffes
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN
| | - Josef Coresh
- Department of Epidemiology and the Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD Division of General Internal Medicine, Department of Medicine, Johns Hopkins University, Baltimore, MD
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Mirbolouk M, Hajebrahimi MA, Akbarpour S, Tohidi M, Azizi F, Hadaegh F. Different glucose tolerance status and incident cardiovascular disease and all-cause mortality among elderly Iranians. Geriatr Gerontol Int 2015; 16:1263-1271. [PMID: 26463623 DOI: 10.1111/ggi.12633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2015] [Indexed: 11/27/2022]
Abstract
AIMS To determine the effect of different glucose categories on incident cardiovascular disease (CVD) and all-cause mortality in a population-based cohort. METHODS A total of 834 individuals aged 65 years and older without a history of CVD at baseline were stratified according to 2-h post-load glucose fasting glucose test into six categories including: (i) normal fasting glucose/normal glucose tolerance; (ii) prediabetes, (iii) isolated fasting hyperglycemia (IFH); (iv) isolated post-challenge hyperglycemia (IPH); (v) IPH and IFH; and (vi) known diabetes mellitus. The prognostic significance of these groups on CVD and total mortality were examined by Cox proportional hazard ratios in a multivariate adjusted model. RESULTS Over 9 years of follow up, 186 incidents of CVD and 218 deaths occurred (72 CVD mortality).Of the population, 45.2%, 30.7%, 1.2%, 6.1% 4.7%, and 11.9% were normal fasting glucose/normal glucose tolerance, prediabetes IFH, IPH, IFH and IPH, and known diabetes mellitus, respectively. Multivariate adjusted hazard ratios for CVD were 1.13 (95% CI 0.78-1.64), 1.03 (95% CI 0.25-4.22), 1.17 (95% CI 0.65-2.11), 2.52 (95% CI 1.43-4.42) and 2.39 (95% CI 1.55-3.69), and for CVD mortality were 0.59 (95% CI 0.27-1.30), 2.02 (95% CI 0.27-15.15), 1.26 (95% CI 0.51-3.16), 3.57 (95% CI 1.64-7.75), and 4.70 (95% CI 2.54-8.69) for prediabetes, IFH, IPH, IFH and IPH, and known diabetes mellitus phenotypes, respectively. Corresponding hazard ratios for all-cause mortality in multivariate model adjusted for prevalent CVD were 1.07 (95% CI 0.73-1.57), 0.59 (95% CI 0.08-4.30), 0.92 (95% CI 0.5-1.70), 2.31 (95% CI 1.33-4.01) and 3.88 (95% CI 2.70-5.55), respectively. CONCLUSION Among the elderly population with newly diagnosed diabetes, only the combined IFH and IPH phenotype, but not IFH or IPH alone, was a significant predictor of CVD and mortality events. Prediabetes was not associated with any risk. Geriatr Gerontol Int 2016; 16: 1263-1271.
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Affiliation(s)
- Mohammadhassan Mirbolouk
- Prevention of Metabolic Disorders Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Hajebrahimi
- Prevention of Metabolic Disorders Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samaneh Akbarpour
- Prevention of Metabolic Disorders Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Tohidi
- Prevention of Metabolic Disorders Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzad Hadaegh
- Prevention of Metabolic Disorders Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Shuto Y, Asai A, Nagao M, Sugihara H, Oikawa S. Repetitive Glucose Spikes Accelerate Atherosclerotic Lesion Formation in C57BL/6 Mice. PLoS One 2015; 10:e0136840. [PMID: 26313920 PMCID: PMC4552094 DOI: 10.1371/journal.pone.0136840] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Accepted: 08/10/2015] [Indexed: 01/08/2023] Open
Abstract
Background A number of epidemiological studies demonstrated that postprandial hyperglycemia is a risk factor for cardiovascular disease in individuals with impaired glucose tolerance. Although several laboratory studies have addressed the plausible causal role of postprandial acute hyperglycemia (glucose spikes) in the development of atherosclerosis, there is little convincing evidence in vivo whether the atherosclerotic lesion formation can be accelerated solely by glucose spikes. Here, we assessed the effect of repetitive glucose spikes on atherosclerotic lesion formation in mice. Methods Female C57BL/6 mice were fed an atherogenic diet from 8 to 28 weeks of age. During the atherogenic diet feeding period, the mice orally received a glucose solution (50 mg glucose/mouse; G group) or water (W group) twice daily, 6 days a week. Atherosclerotic lesion formation in the aortic sinus was quantitatively analyzed in serial cross-sections by oil red O staining. Results G group mice showed transient increases in blood glucose level (~5 mmol/L above W group), and the levels returned to levels similar to those in W group mice within 60 min. No significant differences in glucose tolerance, insulin sensitivity, and plasma lipid profiles were observed after the 20-week repetitive administration between the 2 groups. G group mice showed an approximately 4-fold greater atherosclerotic lesion size in the aortic sinus than W group mice. Gene expression levels of Cd68 and Icam1 in the thoracic aorta were higher in G group mice than in W group mice. Conclusions These results indicate that glucose spikes can accelerate atherosclerotic lesion formation, with little influence on other metabolic disorders. Repetitive glucose administration in wild-type mice may serve as a simple and useful approach to better understanding the causal role of glycemic spikes in the development of atherosclerosis.
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Affiliation(s)
- Yuki Shuto
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Akira Asai
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
- Food and Health Science Research Unit, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Mototsugu Nagao
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Hitoshi Sugihara
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Shinichi Oikawa
- Department of Endocrinology, Diabetes and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
- * E-mail:
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Aroda VR, Getaneh A. Guiding diabetes screening and prevention: rationale, recommendations and remaining challenges. Expert Rev Endocrinol Metab 2015; 10:381-398. [PMID: 30293496 DOI: 10.1586/17446651.2015.1054280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Advances made in diabetes management are not sufficient to reduce morbidity, mortality and cost without making prevention efforts at various levels imperative for substantial impact. Research has demonstrated the efficacy of lifestyle intervention and medications in preventing type 2 diabetes among diverse high-risk groups commonly identified with oral glucose tolerance testing. Efficacy, sustainability and safety data are most comprehensive for lifestyle and metformin, with other medications also demonstrating efficacy and potential in the pharmacoprevention of diabetes. Subsequent implementation studies have demonstrated feasibility of lifestyle intervention programs at health centers, communities, and at local and national government levels. Challenges remain in widespread translation and reaching and engaging at-risk individuals and populations.
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Affiliation(s)
- Vanita R Aroda
- a 1 MedStar Health Research Institute, Hyattsville, MD, USA
- b 2 Georgetown University School of Medicine, WA, USA
| | - Asqual Getaneh
- a 1 MedStar Health Research Institute, Hyattsville, MD, USA
- c 3 MedStar Washington Hospital Center, WA, USA
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Wang SH, Lee WC, Chou HC. Retinal proteins associated with redox regulation and protein folding play central roles in response to high glucose conditions. Electrophoresis 2015; 36:902-9. [DOI: 10.1002/elps.201400591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 12/11/2014] [Accepted: 12/17/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Ssu-Han Wang
- Department of Applied Science; National Hsinchu University of Education; Hsinchu Taiwan
| | - Wen-Chi Lee
- Department of Applied Science; National Hsinchu University of Education; Hsinchu Taiwan
| | - Hsiu-Chuan Chou
- Department of Applied Science; National Hsinchu University of Education; Hsinchu Taiwan
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Huang X, Yang X, Ni J, Xie B, Liu Y, Xuan D, Zhang J. Hyperglucose Contributes to Periodontitis: Involvement of the NLRP3 Pathway by Engaging the Innate Immunity of Oral Gingival Epithelium. J Periodontol 2015; 86:327-35. [PMID: 25325516 DOI: 10.1902/jop.2014.140403] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Xin Huang
- Department of Periodontology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Li CJ, Norstedt G, Hu ZG, Yu P, Li DQ, Li J, Yu Q, Sederholm M, Yu DM. Effects of a Macro-Nutrient Preload on Type 2 Diabetic Patients. Front Endocrinol (Lausanne) 2015; 6:139. [PMID: 26441829 PMCID: PMC4584965 DOI: 10.3389/fendo.2015.00139] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 08/21/2015] [Indexed: 01/05/2023] Open
Abstract
AIMS Macro-nutrient preloads given 30 min before regular meals may improve metabolism. The aim was to investigate how type 2 diabetic patients react to a preload consisting of a blend of macro-nutrients with a low-glycemic index (Inzone Preload(®)). METHODS In a before-after study design, 30 subjects with type 2 diabetes mellitus (T2DM) were enrolled in a 12-week program. All subjects were given Inzone Preload (43% proteins, 29% carbohydrates, 10% lipids, and 9% fibers, 71 kcal), 30 min before each meal during 12 weeks. Fasting glucose and postprandial 2 h glucose were monitored every second week. Body weight (BW) and waist circumference were measured each month. Fasting plasma glucose, glycosylated hemoglobin, serum lipids, fasting insulin, C-reactive protein, and homeostasis model assessment were evaluated before and after the intervention. Subjective appetite was monitored using visual analogue scales after the Inzone Preload. RESULTS The dietary intervention significantly influenced several metabolic parameters compared to base line. Inzone Preload treatment reduced mean postprandial plasma glucose levels (12.2 ± 1.2 vs. 10.5 ± 2.0 mmol/L), HbA1c (7.4 ± 0.3 vs. 7.1 ± 0.2%), mean total cholesterol (4.8 ± 0.9 vs. 4.3 ± 0.8 mmol/L), low-density lipoprotein cholesterol (2.8 ± 0.6 vs. 2.5 ± 0.4 mmol/L), and CRP (1.5 ± 1.4 vs. 0.7 ± 0.7 mg/L). BW loss of more than 3% was seen in 13 participants (43%). Feelings of satiety were significantly higher after Inzone Preload than after habitual breakfast (p < 0.05). No significant changes in fasting blood glucose, high-density lipoprotein and total triacylglycerol, HOMA-IR, and HOMA-β were observed. CONCLUSION A macro-nutrient preload treatment reduces postprandial glucose, inflammatory markers, and serum lipids in patients with T2DM. Approximately half of the study group also displayed reduced BW.
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Affiliation(s)
- Chun-Jun Li
- Key Laboratory of Hormone and Development (Ministry of Health), Department of Endocrinology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Institute of Endocrinology, Metabolic Disease Hospital, Tianjin Medical University, Tianjin, China
| | - Gunnar Norstedt
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Zhao-Gian Hu
- Key Laboratory of Hormone and Development (Ministry of Health), Department of Endocrinology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Institute of Endocrinology, Metabolic Disease Hospital, Tianjin Medical University, Tianjin, China
| | - Pei Yu
- Key Laboratory of Hormone and Development (Ministry of Health), Department of Endocrinology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Institute of Endocrinology, Metabolic Disease Hospital, Tianjin Medical University, Tianjin, China
| | - Dai-Qing Li
- Key Laboratory of Hormone and Development (Ministry of Health), Department of Endocrinology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Institute of Endocrinology, Metabolic Disease Hospital, Tianjin Medical University, Tianjin, China
| | - Jing Li
- Key Laboratory of Hormone and Development (Ministry of Health), Department of Endocrinology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Institute of Endocrinology, Metabolic Disease Hospital, Tianjin Medical University, Tianjin, China
| | - Qian Yu
- Key Laboratory of Hormone and Development (Ministry of Health), Department of Endocrinology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Institute of Endocrinology, Metabolic Disease Hospital, Tianjin Medical University, Tianjin, China
| | - Magnus Sederholm
- Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden
| | - De-Min Yu
- Key Laboratory of Hormone and Development (Ministry of Health), Department of Endocrinology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Institute of Endocrinology, Metabolic Disease Hospital, Tianjin Medical University, Tianjin, China
- *Correspondence: De-Min Yu, Department of Endocrinology, Metabolic Disease Hospital, Tianjin Medical University, Tianjin, China,
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Huang Y, Cai X, Chen P, Mai W, Tang H, Huang Y, Hu Y. Associations of prediabetes with all-cause and cardiovascular mortality: a meta-analysis. Ann Med 2014; 46:684-92. [PMID: 25230915 DOI: 10.3109/07853890.2014.955051] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Reports on the association of prediabetes with all-cause mortality and cardiovascular mortality are inconsistent. Objective. To evaluate the risk of all-cause and cardiovascular mortality in association with impaired fasting glucose (IFG) and impaired glucose tolerance (IGT). METHODS Prospective cohort studies with data on prediabetes and mortality were included. The relative risks (RRs) of all-cause and cardiovascular mortality were calculated and reported with 95% confidence intervals (95% CIs). RESULTS Twenty-six studies were included. The risks of all-cause and cardiovascular mortality were increased in participants with prediabetes defined as IFG of 110-125 mg/dL (IFG 110) (RR 1.12, 95% CI 1.05-1.20; and RR 1.19, 95% CI 1.05-1.35, respectively), IGT (RR 1.33, 95% CI 1.24-1.42; RR 1.23, 95% CI 1.11-1.36, respectively), or combined IFG 110 and/or IGT (RR 1.21, 95% CI 1.11-1.32; RR 1.21, 95% CI 1.07-1.36, respectively), but not when IFG was defined as 100-125 mg/dL (RR 1.07, 95% CI 0.92-1.26; and RR 1.16, 95% CI 0.94-1.42, respectively). CONCLUSIONS Prediabetes, defined as IFG 110, IGT, or combined IFG 110 and/or IGT, was associated with increased all-cause and cardiovascular mortality.
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Affiliation(s)
- Yi Huang
- Clinical Medicine Research Institute, the Affiliated Hospital at Shunde, Southern Medical University , Foshan , PR China
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Little JP, Francois ME. High-intensity interval training for improving postprandial hyperglycemia. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2014; 85:451-456. [PMID: 25412127 DOI: 10.1080/02701367.2014.963474] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
High-intensity interval training (HIIT) has garnered attention in recent years as a time-efficient exercise option for improving cardiovascular and metabolic health. New research demonstrates that HIIT may be particularly effective for improving postprandial hyperglycemia in individuals with, or at risk for, type 2 diabetes (T2D). These findings have clinical relevance because elevated postprandial hyperglycemia is a significant risk factor for cardiovascular morbidity and mortality. This article summarizes the latest evidence demonstrating that HIIT can improve postprandial glucose control to highlight the potential application of HIIT in the prevention and management of T2D and associated cardiovascular complications.
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Fu Q, Sun M, Tang W, Wang Z, Cao M, Zhu Z, Lu L, Bi Y, Ning G, Yang T. A Chinese risk score model for identifying postprandial hyperglycemia without oral glucose tolerance test. Diabetes Metab Res Rev 2014; 30:284-90. [PMID: 24154991 DOI: 10.1002/dmrr.2490] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 09/27/2013] [Accepted: 10/16/2013] [Indexed: 11/06/2022]
Abstract
BACKGROUND The aim of the study is to develop a risk score model for identifying postprandial hyperglycemia without oral glucose tolerance tests (OGTT) in Chinese population, and minimize the number of subjects needing further OGTT. METHODS Multivariable stepwise logistic regression was used to develop risk score models in a derivation cohort (7953 participants without known diabetes). The developed models were verified in a validation cohort (another 1455 subjects without known diabetes). All subjects had completed questionnaires, physical examination and OGTT. Performances of the risk score models were estimated using receiver operating characteristic curves. RESULTS Two risk score models for screening postprandial hyperglycemia were developed. The simple model used non-invasive risk factors (age, height, weight, waist, systolic blood pressure, pulse, hypertension, dyslipidemia and family history of diabetes mellitus), and the full model contained additional variables [fasting blood glucose (FBG), triglyceride/high density lipoprotein cholesterol] obtainable by invasive laboratory tests. The area under receiver operating characteristic curve (AUC) of simple model was similar to FBG and glycated haemoglobin. The full model has the largest AUC [0.799 (0.789-0.809) and 0.730 (0.702-0.758)] in both derivation and validation cohorts (p < 0.001 compared with simple model, FBG, and glycated haemoglobin). At a cutoff point of 80, the sensitivity, specificity and percentage that needed subsequent OGTT were 75.97, 67.56 and 48.38%, respectively. CONCLUSIONS We developed a risk score model for screening postprandial hyperglycemia based on routine clinical information. It could effectively identify patients at high-risk for postprandial hyperglycemia and remarkably reduce the number of subjects requiring OGTT.
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Affiliation(s)
- Qi Fu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Booth FW, Roberts CK, Laye MJ. Lack of exercise is a major cause of chronic diseases. Compr Physiol 2013; 2:1143-211. [PMID: 23798298 DOI: 10.1002/cphy.c110025] [Citation(s) in RCA: 1225] [Impact Index Per Article: 111.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chronic diseases are major killers in the modern era. Physical inactivity is a primary cause of most chronic diseases. The initial third of the article considers: activity and prevention definitions; historical evidence showing physical inactivity is detrimental to health and normal organ functional capacities; cause versus treatment; physical activity and inactivity mechanisms differ; gene-environment interaction (including aerobic training adaptations, personalized medicine, and co-twin physical activity); and specificity of adaptations to type of training. Next, physical activity/exercise is examined as primary prevention against 35 chronic conditions [accelerated biological aging/premature death, low cardiorespiratory fitness (VO2max), sarcopenia, metabolic syndrome, obesity, insulin resistance, prediabetes, type 2 diabetes, nonalcoholic fatty liver disease, coronary heart disease, peripheral artery disease, hypertension, stroke, congestive heart failure, endothelial dysfunction, arterial dyslipidemia, hemostasis, deep vein thrombosis, cognitive dysfunction, depression and anxiety, osteoporosis, osteoarthritis, balance, bone fracture/falls, rheumatoid arthritis, colon cancer, breast cancer, endometrial cancer, gestational diabetes, pre-eclampsia, polycystic ovary syndrome, erectile dysfunction, pain, diverticulitis, constipation, and gallbladder diseases]. The article ends with consideration of deterioration of risk factors in longer-term sedentary groups; clinical consequences of inactive childhood/adolescence; and public policy. In summary, the body rapidly maladapts to insufficient physical activity, and if continued, results in substantial decreases in both total and quality years of life. Taken together, conclusive evidence exists that physical inactivity is one important cause of most chronic diseases. In addition, physical activity primarily prevents, or delays, chronic diseases, implying that chronic disease need not be an inevitable outcome during life.
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Affiliation(s)
- Frank W Booth
- Departments of Biomedical Sciences, Medical Pharmacology and Physiology, and Nutrition and Exercise Physiology, Dalton Cardiovascular Institute, University of Missouri, Columbia, Missouri, USA.
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Chen JY, Chou HC, Chen YH, Chan HL. High glucose-induced proteome alterations in hepatocytes and its possible relevance to diabetic liver disease. J Nutr Biochem 2013; 24:1889-910. [DOI: 10.1016/j.jnutbio.2013.05.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 05/16/2013] [Accepted: 05/24/2013] [Indexed: 12/11/2022]
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Barzin M, Hosseinpanah F, Malboosbaf R, Hajsheikholeslami F, Azizi F. Isolated post-challenge hyperglycaemia and risk of cardiovascular events: Tehran Lipid and Glucose Study. Diab Vasc Dis Res 2013; 10:324-9. [PMID: 23291339 DOI: 10.1177/1479164112469639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To evaluate the risk of cardiovascular events in diabetes defined by isolated post-challenge hyperglycaemia (IPH). METHODS We followed 3794 subjects aged ≥40 years without known history of diabetes or cardiovascular disease (CVD) at baseline for CVD events. Participants were categorized as subjects without diabetes [fasting plasma glucose (FPG) < 126 mg/dL and 2-h post-challenge plasma glucose (2-hPG) < 200 mg/dL], IPH (FPG < 126 mg/dL and 2-h PG ≥ 200 mg/dL) and fasting hyperglycaemia (fasting blood glucose (FBS) ≥ 126 mg/dL). Hazard ratios (HRs) were calculated with the use of Cox proportional-hazards regression models to evaluate the risk of CVD events. RESULTS At baseline, of 486 subjects with newly diagnosed diabetes, 190 (39%) had IPH. Over the next 8 years, age and sex-adjusted HR for incident CVD was 1.77 (95% confidence interval (CI): 1.19-2.64; p = 0.005) in subjects with IPH compared with subjects without diabetes. After further adjustment for potential confounders, the HR for CVD was not significant [1.32 (95% CI: 0.88-1.99; p = 0.2)]. CONCLUSIONS IPH in middle-aged adults adds nothing for identifying CVD risks when other risk factors are taken into account. Associated metabolic risk factors seem to be more important than hyperglycaemia per se.
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Affiliation(s)
- Maryam Barzin
- Obesity Research Center, Research Institute for Endocrine Science, Shahid Beheshti University of Medical Science, Tehran, Iran
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