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Alhomaid AM, Moin Ahmed M. Prevalence of Non-diabetic Hyperglycemia in Young Adults and Its Impact on Periodontal Health. Cureus 2024; 16:e53847. [PMID: 38465110 PMCID: PMC10924652 DOI: 10.7759/cureus.53847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 02/08/2024] [Indexed: 03/12/2024] Open
Abstract
Background Non-diabetic hyperglycemia is a transitional phase of hyperglycemia that poses a hidden risk for the development of diabetes mellitus and related complications, including periodontal destruction. The current study sought to determine the prevalence of non-diabetic hyperglycemia in young adults and any possible links to periodontal health. Methods A total of 400 participants in this cross-sectional study were evaluated for non-diabetic hyperglycemia between the ages of 18 and 35 years. Group I consisted of non-diabetic hyperglycemic participants. Group II comprised an equal number of matched, healthy subjects. The groups' hyperglycemic and clinical periodontal characteristics were contrasted. Using a one-sample t-test and logistic regression analysis, the acquired data were subjected to statistical analysis. Results The prevalence of non-diabetic hyperglycemia was 19%, with men (13%) having a higher prevalence than women (6%). The mean fasting plasma glucose and hemoglobin A1c (HbA1c) levels were 114.47 ± 6.40 mg/dL and 6.10 ± 0.21%, respectively, for group I, and 85.72 ± 7.24 mg/dL and 4.38 ± 0.70% for group II. When compared to healthy controls, all periodontal parameters, including plaque index, gingival index, bleeding on probing, probing depth, and clinical attachment loss, were significantly higher in group I non-diabetic hyperglycemic patients. The regression analysis revealed statistically significant links between hyperglycemic and periodontal parameters. Conclusion The prevalence of non-diabetic hyperglycemia among young adults is a serious concern similar to that of older adults with the risk for periodontal diseases. Non-diabetic hyperglycemic considerations in young adults should be emphasized in dental and medical clinics to reduce the risk of developing diabetes mellitus and to avoid irreversible periodontal tissue damage.
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Affiliation(s)
| | - Muzammil Moin Ahmed
- Dental and Oral Health, College of Applied Health Sciences in Ar Rass, Qassim University, Ar Rass, SAU
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Wu P, Zhang L, Zhao Y, Xu M, Tang Q, Chen GC, Qin L. Adherence to the 2015-2020 Dietary Guidelines for Americans Compared with the Mediterranean Diet in Relation to Risk of Prediabetes: Results from NHANES 2007-2016. Nutrients 2023; 15:3546. [PMID: 37630736 PMCID: PMC10457824 DOI: 10.3390/nu15163546] [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: 07/07/2023] [Revised: 08/06/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Prediabetes presents a high-risk state for the development of various diseases and is reversible by adhering to a healthy lifestyle. We conducted this analysis to explore the associations of the Healthy Eating Index-2015 (HEI-2015) and the Alternate Mediterranean Diet Index (aMed index) with the risk of prediabetes. The data were derived from the National Health and Nutrition Examination Survey, including 20,844 participants. Multivariable-adjusted odds ratios (OR) of prediabetes and 95% confidence intervals (CI) by tertile of diet quality scores were estimated using a weighted logistic regression. Compared to those in the lowest tertile, the multivariable-adjusted OR of prediabetes for the highest tertile was 0.82 (95% CI: 0.72, 0.94; p for trend = 0.005) for HEI-2015 and 0.87 (95% CI: 0.76, 0.98; p for trend = 0.02) for the aMed index. After mutual adjustment, the association for HEI-2015 (p for trend = 0.03) but not for the aMed index (p for trend = 0.59) remained significant. Among the component food groups and nutrients, higher intakes of red and processed meat, sodium, and total saturated fatty acids were associated with a higher risk of prediabetes, while moderate alcohol consumption was associated with a lower risk. In conclusion, adherence to the 2015-2020 Dietary Guidelines for Americans, as compared with the Mediterranean Diet, appeared to be more strongly associated with a lower risk of prediabetes among adults in the United States.
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Affiliation(s)
- Pengcheng Wu
- Zhangjiagang Center for Disease Control and Prevention, 18 Zhizhong Road, Zhangjiagang 215600, China;
- Department of Nutrition and Food Hygiene, School of Public Health, Suzhou Medical College of Soochow University, 199 Ren’ai Road, Suzhou 215127, China; (L.Z.); (Y.Z.); (G.-C.C.)
| | - Lili Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Suzhou Medical College of Soochow University, 199 Ren’ai Road, Suzhou 215127, China; (L.Z.); (Y.Z.); (G.-C.C.)
| | - Yan Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Suzhou Medical College of Soochow University, 199 Ren’ai Road, Suzhou 215127, China; (L.Z.); (Y.Z.); (G.-C.C.)
| | - Miao Xu
- Yancheng Center for Disease Control and Prevention, 198 Kaifang Road, Yancheng 224001, China; (M.X.); (Q.T.)
| | - Quan Tang
- Yancheng Center for Disease Control and Prevention, 198 Kaifang Road, Yancheng 224001, China; (M.X.); (Q.T.)
| | - Guo-Chong Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Suzhou Medical College of Soochow University, 199 Ren’ai Road, Suzhou 215127, China; (L.Z.); (Y.Z.); (G.-C.C.)
| | - Liqiang Qin
- Department of Nutrition and Food Hygiene, School of Public Health, Suzhou Medical College of Soochow University, 199 Ren’ai Road, Suzhou 215127, China; (L.Z.); (Y.Z.); (G.-C.C.)
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3
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Xu J, Han X, Chen Q, Cai M, Tian J, Yan Z, Guo Q, Xu J, Lu H. Association between sarcopenia and prediabetes among non-elderly US adults. J Endocrinol Invest 2023:10.1007/s40618-023-02038-y. [PMID: 36856982 DOI: 10.1007/s40618-023-02038-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 02/08/2023] [Indexed: 03/02/2023]
Abstract
AIM To explore the specific association between sarcopenia and prediabetes based on large population samples. METHODS A total of 16,116 U.S. adults aged 20-59 with dual energy X-ray absorptiometry (DXA) was identified from the National Health and Nutrition Examination Surveys (NHANES). Sarcopenia was defined according to appendicular skeletal muscle mass (ASM) adjusted for body mass index (BMI). Multivariable binary logistic regression models were used to ascertain odds ratios (ORs) for developing prediabetes. Stratified analyses were also performed. RESULTS Prevalence of prediabetes was higher in the sarcopenia group (n = 1055) compared with the non-sarcopenia group (n = 15,061) (45.50% vs 28.74%, P < 0.001). Sarcopenia was strongly associated with an increased risk of prediabetes after full adjustment (OR = 1.21, 95CI%: 1.05, 1.39, P = 0.009). In the stratified analysis, this association remained significant independent of obesity, triglycerides, and low-density lipoprotein cholesterol levels. When sarcopenia subjects combined with obesity especially central obesity, the risk of prediabetes was the highest (OR = 2.63, 95CI%: 2.22, 3.11, P < 0.001). Furthermore, a greater proportion of any of impaired glucose tolerance (IGT) individuals was observed in the sarcopenia group compared to the non-sarcopenia group among prediabetes population (41.72% vs 24.06%, P < 0.001). CONCLUSIONS Sarcopenia was positively associated with prevalent prediabetes especially IGT in the non-elderly. Moreover, synergistic interactions between the sarcopenia and obesity could greatly increase the risk of prediabetes.
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Affiliation(s)
- J Xu
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - X Han
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Q Chen
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - M Cai
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - J Tian
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Z Yan
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Q Guo
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - J Xu
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - H Lu
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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Wells I, Simons G, Davenport C, Mallen CD, Raza K, Falahee M. Acceptability of predictive testing for ischemic heart disease in those with a family history and the impact of results on behavioural intention and behaviour change: a systematic review. BMC Public Health 2022; 22:1751. [PMID: 36109776 PMCID: PMC9479351 DOI: 10.1186/s12889-022-14116-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 09/02/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Tests to predict the development of chronic diseases in those with a family history of the disease are becoming increasingly available and can identify those who may benefit most from preventive interventions. It is important to understand the acceptability of these predictive approaches to inform the development of tools to support decision making. Whilst data are lacking for many diseases, data are available for ischemic heart disease (IHD). Therefore, this study investigates the willingness of those with a family history of IHD to take a predictive test, and the effect of the test results on risk-related behaviours. METHOD Medline, EMBASE, PsycINFO, LILACS and grey literature were searched. Primary research, including adult participants with a family history of IHD, and assessing a predictive test were included. Qualitative and quantitative outcomes measuring willingness to take a predictive test and the effect of test results on risk-related behaviours were also included. Data concerning study aims, participants, design, predictive test, intervention and findings were extracted. Study quality was assessed using the Standard Quality Assessment Criteria for Evaluating Research Papers from a Variety of Fields and a narrative synthesis undertaken. RESULTS Five quantitative and two qualitative studies were included. These were conducted in the Netherlands (n = 1), Australia (n = 1), USA (n = 1) and the UK (n = 4). Methodological quality ranged from moderate to good. Three studies found that most relatives were willing to take a predictive test, reporting family history (n = 2) and general practitioner (GP) recommendation (n = 1) as determinants of interest. Studies assessing the effect of test results on behavioural intentions (n = 2) found increased intentions to engage in physical activity and smoking cessation, but not healthy eating in those at increased risk of developing IHD. In studies examining actual behaviour change (n = 2) most participants reported engaging in at least one preventive behaviour, particularly medication adherence. CONCLUSION The results suggests that predictive approaches are acceptable to those with a family history of IHD and have a positive impact on health behaviours. Further studies are needed to provide a comprehensive understanding of predictive approaches in IHD and other chronic conditions.
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Affiliation(s)
- Imogen Wells
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Gwenda Simons
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Clare Davenport
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.,NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Christian D Mallen
- Primary Care Centre Versus Arthritis, School of Medicine, David Weatherall Building, Keele University, Keele, UK
| | - Karim Raza
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.,NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK.,Sandwell and West Birmingham NHS trust, Birmingham, UK.,MRC Versus Arthritis Centre for Musculoskeletal Ageing Research and the Research into Inflammatory Arthritis Centre, Versus Arthritis, University of Birmingham, Birmingham, UK
| | - Marie Falahee
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
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Tian X, Zhang Y, Li H, Li Y, Wang N, Zhang W, Ma B. Palmatine ameliorates high fat diet induced impaired glucose tolerance. Biol Res 2020; 53:39. [PMID: 32928312 PMCID: PMC7491132 DOI: 10.1186/s40659-020-00308-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 09/07/2020] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND The impaired glucose tolerance (IGT) is a representative prediabetes characterized by defective glucose homeostasis, and palmatine (PAL) is a natural isoquinoline alkaloid with multiple pharmacological effects. Our study aims to investigate the therapeutic effect of PAL on the impaired glucose tolerance. METHODS Male Sprague-Dawley rats were used to establish an IGT model with high fat diet (HFD). Oral glucose tolerance test (OGTT) and further biochemical analysis were conducted to determine the effect of PAL on glucose intolerance in vivo. Molecular details were clarified in a cellular model of IGT induced by Palmitate (PA) on INS-1 cells. RESULTS Our study demonstrated a relief of IGT with improved insulin resistance in HFD induced rats after PAL treatment. Besides, promoted pancreas islets function was validated with significantly increased β cell mass after the treatment of PAL. We further found out that PAL could alleviate the β cell apoptosis that accounts for β cell mass loss in IGT model. Moreover, MAPK signaling was investigated in vivo and vitro with the discovery that PAL regulated the MAPK signaling by restricting the ERK and JNK cascades. The insulin secretion assay indicated that PAL significantly promoted the defective insulin secretion in PA-induced INS-1 cells via JNK rather than ERK signaling. Furthermore, PAL treatment was determined to significantly suppress β cell apoptosis in PA-induced cells. We thus thought that PAL promoted the PA-induced impaired insulin release by inhibiting the β cell apoptosis and JNK signaling in vitro. CONCLUSION In summary, PAL ameliorates HFD-induced IGT with novel mechanisms.
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Affiliation(s)
- Xusheng Tian
- Teaching and Research Department of Theories of Schools of Traditional Chinese Medicine, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Yukun Zhang
- Laboratory of Anatomy, Experimental and Training Center, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Han Li
- Department of Febrile Disease, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Yunfeng Li
- Department of Febrile Disease, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Ning Wang
- Department of Febrile Disease, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Wei Zhang
- Department of Chinese Medicinal Formulae, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, People's Republic of China
| | - Boyan Ma
- Department of Febrile Disease, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, Heilongjiang, 150040, People's Republic of China.
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6
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Stratev V, Dimitrova V, Petkova D. COPD and Comorbidities: Relating Mechanisms and Treatment. CURRENT RESPIRATORY MEDICINE REVIEWS 2019. [DOI: 10.2174/1573398x14666181018101021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Despite being a disease with the constantly rising social burden and mortality, COPD is
also associated with a number of other conditions known as comorbidities. COPD and other diseases
often share similar risk factors, such as smoking and aging, which leads to increased prevalence of
comorbidities. The key pathogenic mechanisms of COPD are chronic inflammation and oxidative
stress and they also contribute significantly to the development of accompanying diseases. Through
complex interactions, COPD increases the risk for certain comorbidities and they, in turn, have a
negative impact on health status and contribute to mortality in COPD patients. Proper treatment of
comorbidities may have a beneficial effect on COPD natural course and progression. Here we review
the prevalence of the most common comorbidities of COPD; their interrelating mechanism and the
current advances of the treatment in terms of co-existence.
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Affiliation(s)
- Velin Stratev
- Clinic of Pulmonary Diseases, University Hospital “St. Marina”, Varna, Bulgaria
| | - Valentina Dimitrova
- Clinic of Pulmonary Diseases, University Hospital “St. Marina”, Varna, Bulgaria
| | - Diana Petkova
- Clinic of Pulmonary Diseases, University Hospital “St. Marina”, Varna, Bulgaria
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Santos-Lozano JM, Rada M, Lapetra J, Guinda Á, Jiménez-Rodríguez MC, Cayuela JA, Ángel-Lugo A, Vilches-Arenas Á, Gómez-Martín AM, Ortega-Calvo M, Castellano JM. Prevention of type 2 diabetes in prediabetic patients by using functional olive oil enriched in oleanolic acid: The PREDIABOLE study, a randomized controlled trial. Diabetes Obes Metab 2019; 21:2526-2534. [PMID: 31364228 DOI: 10.1111/dom.13838] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/12/2019] [Accepted: 07/25/2019] [Indexed: 12/13/2022]
Abstract
AIM To assess whether the regular intake of an oleanolic acid (OA)-enriched olive oil is effective in the prevention of diabetes. METHODS In the PREDIABOLE study, prediabetic individuals (impaired fasting glucose and impaired glucose tolerance) of both sexes (176 patients, aged 30-80 years) were randomized to receive 55 mL/day of OA-enriched olive oil (equivalent dose 30 mg OA/day) [intervention group (IG)] or the same oil not enriched [control group (CG)]. The main outcome was the incidence of new-onset type 2 diabetes in both groups. RESULTS Forty-eight new diabetes cases occurred, 31 in the CG and 17 in the IG. The multivariate-adjusted hazard ratio was 0.45 (95% CI, 0.24-0.83) for the IG compared with the CG. Intervention-related adverse effects were not reported. CONCLUSIONS The intake of OA-enriched olive oil reduces the risk of developing diabetes in prediabetic patients. The results of the PREDIABOLE study promote the use of OA in new functional foods and drugs for the prevention of diabetes in individuals at risk of developing it.
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Affiliation(s)
- José M Santos-Lozano
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Family Medicine, Primary Health District Seville, Seville, Spain
- Department of Medicine, Faculty of Medicine, University of Seville, Seville, Spain
| | - Mirela Rada
- Department of Food and Health, Instituto de la Grasa, Spanish National Research Council (CSIC), Seville, Spain
| | - José Lapetra
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Andalusian Public Foundation for the Management of Health Research in Seville (FISEVI), Seville, Spain
| | - Ángeles Guinda
- Department of Food and Health, Instituto de la Grasa, Spanish National Research Council (CSIC), Seville, Spain
| | - María C Jiménez-Rodríguez
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - José A Cayuela
- Department of Food and Health, Instituto de la Grasa, Spanish National Research Council (CSIC), Seville, Spain
| | - Antonio Ángel-Lugo
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Ángel Vilches-Arenas
- Department of Preventive Medicine and Public Health, Faculty of Medicine, University of Seville, Seville, Spain
| | - Ana M Gómez-Martín
- Department of Family Medicine, Primary Health District Seville, Seville, Spain
| | - Manuel Ortega-Calvo
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - José M Castellano
- Department of Food and Health, Instituto de la Grasa, Spanish National Research Council (CSIC), Seville, Spain
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Bouhajja H, Abdelhedi R, Amouri A, Hadj Kacem F, Marrakchi R, Safi W, Mrabet H, Chtourou L, Charfi N, Fourati M, Bensassi S, Jamoussi K, Abid M, Ayadi H, Mnif-Feki M, Bougacha-Elleuch N. Potential role of liver enzyme levels as predictive markers of glucose metabolism disorders in a Tunisian population. Can J Physiol Pharmacol 2018. [PMID: 29527933 DOI: 10.1139/cjpp-2017-0579] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The relationship between liver enzymes and T2D risk is inconclusive. We aimed to evaluate the association between liver markers and risk of carbohydrate metabolism disorders, as well as their discriminatory power, for T2D prediction. This cross-sectional study enrolled 216 participants classified as normoglycemic, prediabetic, newly diagnosed diabetics, and diagnosed diabetics. All participants underwent anthropometric and biochemical measurements. The relationship between hepatic enzymes and glucose metabolism markers was evaluated by analyses of covariance. The associations between liver enzymes and incident carbohydrate metabolism disorders were analyzed through logistic regression and their discriminatory capacity to predict T2D by ROC analysis. High AP, ALT, γGT, and AST levels were independently related to decreased insulin sensitivity. Interestingly, a higher AP level was significantly associated with an increased risk of prediabetes (p = 0.017), newly diagnosed diabetes (p = 0.004), and T2D (p = 0.007). An elevated γGT level was an independent risk factor for T2D (p = 0.032) and undiagnosed T2D (p = 0.010) in prediabetic and normoglycemic subjects, respectively. In ROC analysis, AP was a powerful predictor of incident diabetes and significantly improved T2D prediction. Liver enzymes within the normal range, specifically AP levels, are associated with increased risk of carbohydrate metabolism disorders and significantly improved T2D prediction.
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Affiliation(s)
- Houda Bouhajja
- a Unit of Obesity and Metabolic Syndrome, Department of Endocrinology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Rania Abdelhedi
- b Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, Sfax, Tunisia
| | - Ali Amouri
- c Department of Gastroenterology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Faten Hadj Kacem
- a Unit of Obesity and Metabolic Syndrome, Department of Endocrinology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Rim Marrakchi
- d Biochemistry Laboratory, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Wajdi Safi
- a Unit of Obesity and Metabolic Syndrome, Department of Endocrinology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Houcem Mrabet
- a Unit of Obesity and Metabolic Syndrome, Department of Endocrinology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Lassaad Chtourou
- c Department of Gastroenterology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Nadia Charfi
- a Unit of Obesity and Metabolic Syndrome, Department of Endocrinology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Mouna Fourati
- a Unit of Obesity and Metabolic Syndrome, Department of Endocrinology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Salwa Bensassi
- a Unit of Obesity and Metabolic Syndrome, Department of Endocrinology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Kamel Jamoussi
- d Biochemistry Laboratory, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Mohamed Abid
- a Unit of Obesity and Metabolic Syndrome, Department of Endocrinology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Hammadi Ayadi
- b Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, Sfax, Tunisia
| | - Mouna Mnif-Feki
- a Unit of Obesity and Metabolic Syndrome, Department of Endocrinology, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Noura Bougacha-Elleuch
- e Laboratory of Molecular and Functional Genetics, Faculty of Sciences of Sfax, University of Sfax, Tunisia
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Leng J, Wang L, Wang J, Li W, Liu H, Zhang S, Li L, Tian H, Xun P, Yang X, Yu Z, Hu G. Uric acid and diabetes risk among Chinese women with a history of gestational diabetes mellitus. Diabetes Res Clin Pract 2017; 134:72-79. [PMID: 28993154 PMCID: PMC5723553 DOI: 10.1016/j.diabres.2017.09.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 09/02/2017] [Accepted: 09/27/2017] [Indexed: 01/06/2023]
Abstract
AIMS To assess the association of uric acid (UA) with the risks of postpartum type 2 diabetes and prediabetes among women with prior gestational diabetes mellitus (GDM). METHODS We performed a cross-sectional study of 1262 GDM women at 1-5 years after delivery using the baseline data from the Tianjin Gestational Diabetes Mellitus Prevention Program. Logistic regression models were used to estimate the association of different levels of serum UA with the risks of type 2 diabetes and prediabetes. RESULTS The multivariable-adjusted odds ratios (ORs) across quartiles of serum UA were 1.00, 1.23 (95% confidence interval [CI] 0.55-2.78), 2.05 (95% CI 0.96-4.39), and 3.17 (95% CI 1.54-6.55) (Ptrend < 0.001) for type 2 diabetes, and 1.00, 1.50 (95% CI 1.03-2.19), 2.28 (95% CI 1.58-3.30), and 2.88 (95% CI 1.99-4.17) (Ptrend < 0.001) for prediabetes, respectively. Restricted cubic splines models showed positive linear associations of serum UA as a continuous variable with the risks of type 2 diabetes and prediabetes. This positive association was significant when stratified by healthy weight and overweight participants. CONCLUSIONS Serum UA levels have a graded positive association with the risks of type 2 diabetes and prediabetes among Chinese with a history of GDM.
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Affiliation(s)
- Junhong Leng
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Leishen Wang
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Jing Wang
- Tianjin Women's and Children's Health Center, Tianjin, China; Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Weiqin Li
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Huikun Liu
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Shuang Zhang
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Lili Li
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Huiguang Tian
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Pengcheng Xun
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN, USA
| | - Xilin Yang
- Department of Epidemiology and Biostatistics, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
| | - Zhijie Yu
- Population Cancer Research Program, Dalhousie University, 1494 Carlton Street, Halifax, NS, Canada
| | - Gang Hu
- Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA.
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Edeoga C, Owei I, Siwakoti K, Umekwe N, Ceesay F, Wan J, Dagogo-Jack S. Relationships between blood pressure and blood glucose among offspring of parents with type 2 diabetes: Prediction of incident dysglycemia in a biracial cohort. J Diabetes Complications 2017; 31:1580-1586. [PMID: 28890305 DOI: 10.1016/j.jdiacomp.2017.07.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 07/27/2017] [Accepted: 07/28/2017] [Indexed: 01/11/2023]
Abstract
AIMS We assessed blood pressure (BP) and blood glucose (BG) values in healthy subjects, and examined baseline BP as a predictor of incident prediabetes during follow-up. METHODS Participants in the Pathobiology of Prediabetes in a Biracial Cohort (POP-ABC) study underwent screening assessments (anthropometry, BP, OGTT) and were stratified into normal BP (NBP), prehypertension, or hypertension, and normal glucose regulation (NGR), prediabetes (IFG/IGT), or type 2 diabetes (T2D) status. NGR subjects who met all inclusion criteria were enrolled in a 5-yr prospective study, with the primary outcome of incident prediabetes. RESULTS We screened 602 adults (341 black, 261 white) and enrolled 343 (193 black, 150 white) for prospective follow-up. Systolic and diastolic BP correlated significantly with fasting and nonfasting BG (P=0.003-<0.0001). Compared to NGR group, more prediabetic subjects had prehypertension (42.5% vs. 36.2%) and fewer had NBP (35.9% vs. 48.6%) (P=0.009). During ~5years of follow-up, 26.3% of NBP and 35.7% of prehypertensive subjects developed prediabetes (P=0.02). Kaplan-Meier analysis showed higher probability of incident prediabetes among participants with prehypertension compared to NBP during ~5years of follow-up (P=0.0012). CONCLUSIONS In our biracial cohort, BP and BG values were significantly correlated, and BP status predicted incident prediabetes among initially normoglycemic individuals. These findings suggest co-evolution of factors involved in the dysregulation of BP and BG.
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Affiliation(s)
- Chimaroke Edeoga
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Ibiye Owei
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Krishmita Siwakoti
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Nkiru Umekwe
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Fatoumatta Ceesay
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Jim Wan
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Sam Dagogo-Jack
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN, United States.
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de Abreu LLF, Holloway KL, Mohebbi M, Sajjad MA, Kotowicz MA, Pasco JA. All-Cause Mortality Risk in Australian Women with Impaired Fasting Glucose and Diabetes. J Diabetes Res 2017; 2017:2042980. [PMID: 28698884 PMCID: PMC5494090 DOI: 10.1155/2017/2042980] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 05/15/2017] [Accepted: 05/23/2017] [Indexed: 12/26/2022] Open
Abstract
AIMS Impaired fasting glucose (IFG) and diabetes are increasing in prevalence worldwide and lead to serious health problems. The aim of this longitudinal study was to investigate the association between impaired fasting glucose or diabetes and mortality over a 10-year period in Australian women. METHODS This study included 1167 women (ages 20-94 yr) enrolled in the Geelong Osteoporosis Study. Hazard ratios for all-cause mortality in diabetes, IFG, and normoglycaemia were calculated using a Cox proportional hazards model. RESULTS Women with diabetes were older and had higher measures of adiposity, LDL cholesterol, and triglycerides compared to the IFG and normoglycaemia groups (all p < 0.001). Mortality rate was greater in women with diabetes compared to both the IFG and normoglycaemia groups (HR 1.8; 95% CI 1.3-2.7). Mortality was not different in women with IFG compared to those with normoglycaemia (HR 1.0; 95% CI 0.7-1.4). CONCLUSIONS This study reports an association between diabetes and all-cause mortality. However, no association was detected between IFG and all-cause mortality. We also showed that mortality in Australian women with diabetes continues to be elevated and women with IFG are a valuable target for prevention of premature mortality associated with diabetes.
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Affiliation(s)
| | | | | | | | - Mark A. Kotowicz
- Deakin University, Geelong, VIC 3220, Australia
- Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, St Albans, VIC 3010, Australia
- Barwon Health, Geelong, VIC 3220, Australia
| | - Julie A. Pasco
- Deakin University, Geelong, VIC 3220, Australia
- Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, St Albans, VIC 3010, Australia
- Barwon Health, Geelong, VIC 3220, Australia
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12
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Brannick B, Wynn A, Dagogo-Jack S. Prediabetes as a toxic environment for the initiation of microvascular and macrovascular complications. Exp Biol Med (Maywood) 2017; 241:1323-31. [PMID: 27302176 DOI: 10.1177/1535370216654227] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Prediabetes is a state characterized by impaired fasting glucose or impaired glucose tolerance. Evidence is increasingly demonstrating that prediabetes is a toxic state, in addition to being a harbinger of future development of diabetes mellitus. This minireview discusses the pathophysiology and clinical significance of prediabetes, and approach to its management, in the context of the worldwide diabetes epidemic. The pathophysiologic defects underlying prediabetes include insulin resistance, β cell dysfunction, increased lipolysis, inflammation, suboptimal incretin effect, and possibly hepatic glucose overproduction. Recent studies have revealed that the long-term complications of diabetes may manifest in some people with prediabetes; these complications include classical microvascular and macrovascular disorders, and our discussion explores the role of glycemia in their development. Finally, landmark intervention studies in prediabetes, including lifestyle modification and pharmacologic treatment, are reviewed.
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Affiliation(s)
- Ben Brannick
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, Tennessee, TN 38163, USA
| | - Anne Wynn
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, Tennessee, TN 38163, USA
| | - Samuel Dagogo-Jack
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, Tennessee, TN 38163, USA
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13
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Gajęcka M, Przybylska-Gornowicz B, Zakłos-Szyda M, Dąbrowski M, Michalczuk L, Koziołkiewicz M, Babuchowski A, Zielonka Ł, Lewczuk B, Gajęcki MT. The influence of a natural triterpene preparation on the gastrointestinal tract of gilts with streptozocin-induced diabetes and on cell metabolic activity. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.03.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Owei I, Umekwe N, Wan J, Dagogo-Jack S. Plasma lipid levels predict dysglycemia in a biracial cohort of nondiabetic subjects: Potential mechanisms. Exp Biol Med (Maywood) 2016; 241:1961-1967. [PMID: 27430991 PMCID: PMC5068467 DOI: 10.1177/1535370216659946] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 06/27/2016] [Indexed: 01/04/2023] Open
Abstract
Dyslipidemia and dysglycemia are etiologically associated, but the direction, chronology, and mechanisms of the association are not fully understood. We, therefore, analyzed data from 335 healthy adults (184 black, 151 white) enrolled in the Pathobiology of Prediabetes in A Biracial Cohort study. Subjects underwent oral glucose tolerance test (OGTT) and were enrolled if they had normal fasting and 2-h plasma glucose levels. Assessments during year 1 included anthropometry, fasting lipid profile, insulin sensitivity, and insulin secretion. Thereafter, OGTT was assessed annually for 5.5 years. The primary outcome was occurrence of prediabetes (impaired fasting glucose or impaired glucose tolerance) or diabetes. During a mean follow-up of 2.62 years, 110 participants (32.8%) developed prediabetes (N = 100) or diabetes (N = 10). In multivariate logistic regression models, higher baseline low-density lipoprotein (LDL) cholesterol and triglyceride levels and lower HDL cholesterol levels significantly increased the risk of incident prediabetes. The combined relative risk (95% confidence interval [CI]) of prediabetes for participants with lower baseline HDL cholesterol (10th vs. 90th percentile), higher LDL cholesterol (90th vs. 10th percentile) and high triglycerides levels (90th vs. 10th percentile) was 4.12 (95% CI 1.61-10.56), P = 0.0032. At baseline, lipid values showed significant associations with measures of adiposity, glycemia, insulin sensitivity, and secretion. In both ethnic groups, waist circumference correlated positively with triglycerides and inversely with HDL cholesterol levels (P = 0.0004-<0.0001); fasting plasma glucose correlated positively with triglycerides and LDL cholesterol levels and inversely with HDL cholesterol levels (P = 0.006-<0.0001); insulin sensitivity correlated positively with HDL cholesterol and inversely with triglyceride levels (P < 0.0001), and insulin secretion correlated positively with triglycerides (P = 0.01) and inversely with HDL cholesterol (P < 0.0001). We conclude that a baseline lipidemic signature identifies normoglycemic individuals at high risk for future glycemic progression, via congruent associations with adiposity and glucoregulatory mechanisms. These findings suggest that early lifestyle intervention could ameliorate progressive dyslipidemia and dysglycemia.
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Affiliation(s)
- Ibiye Owei
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Nkiru Umekwe
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Jim Wan
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Samuel Dagogo-Jack
- Division of Endocrinology, Diabetes and Metabolism, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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15
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Hormetic and regulatory effects of lipid peroxidation mediators in pancreatic beta cells. Mol Aspects Med 2016; 49:49-77. [PMID: 27012748 DOI: 10.1016/j.mam.2016.03.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/23/2016] [Accepted: 03/09/2016] [Indexed: 12/12/2022]
Abstract
Nutrient sensing mechanisms of carbohydrates, amino acids and lipids operate distinct pathways that are essential for the adaptation to varying metabolic conditions. The role of nutrient-induced biosynthesis of hormones is paramount for attaining metabolic homeostasis in the organism. Nutrient overload attenuate key metabolic cellular functions and interfere with hormonal-regulated inter- and intra-organ communication, which may ultimately lead to metabolic derangements. Hyperglycemia and high levels of saturated free fatty acids induce excessive production of oxygen free radicals in tissues and cells. This phenomenon, which is accentuated in both type-1 and type-2 diabetic patients, has been associated with the development of impaired glucose tolerance and the etiology of peripheral complications. However, low levels of the same free radicals also induce hormetic responses that protect cells against deleterious effects of the same radicals. Of interest is the role of hydroxyl radicals in initiating peroxidation of polyunsaturated fatty acids (PUFA) and generation of α,β-unsaturated reactive 4-hydroxyalkenals that avidly form covalent adducts with nucleophilic moieties in proteins, phospholipids and nucleic acids. Numerous studies have linked the lipid peroxidation product 4-hydroxy-2E-nonenal (4-HNE) to different pathological and cytotoxic processes. Similarly, two other members of the family, 4-hydroxyl-2E-hexenal (4-HHE) and 4-hydroxy-2E,6Z-dodecadienal (4-HDDE), have also been identified as potential cytotoxic agents. It has been suggested that 4-HNE-induced modifications in macromolecules in cells may alter their cellular functions and modify signaling properties. Yet, it has also been acknowledged that these bioactive aldehydes also function as signaling molecules that directly modify cell functions in a hormetic fashion to enable cells adapt to various stressful stimuli. Recent studies have shown that 4-HNE and 4-HDDE, which activate peroxisome proliferator-activated receptor δ (PPARδ) in vascular endothelial cells and insulin secreting beta cells, promote such adaptive responses to ameliorate detrimental effects of high glucose and diabetes-like conditions. In addition, due to the electrophilic nature of these reactive aldehydes they form covalent adducts with electronegative moieties in proteins, phosphatidylethanolamine and nucleotides. Normally these non-enzymatic modifications are maintained below the cytotoxic range due to efficient cellular neutralization processes of 4-hydroxyalkenals. The major neutralizing enzymes include fatty aldehyde dehydrogenase (FALDH), aldose reductase (AR) and alcohol dehydrogenase (ADH), which transform the aldehyde to the corresponding carboxylic acid or alcohols, respectively, or by biding to the thiol group in glutathione (GSH) by the action of glutathione-S-transferase (GST). This review describes the hormetic and cytotoxic roles of oxygen free radicals and 4-hydroxyalkenals in beta cells exposed to nutritional challenges and the cellular mechanisms they employ to maintain their level at functional range below the cytotoxic threshold.
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Malkan UY, Gunes G, Corakci A. Rational diagnoses of diabetes: the comparison of 1,5-anhydroglucitol with other glycemic markers. SPRINGERPLUS 2015; 4:587. [PMID: 26543722 PMCID: PMC4628038 DOI: 10.1186/s40064-015-1389-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 09/29/2015] [Indexed: 12/16/2022]
Abstract
Diabetes mellitus (DM) is a frequently encountered disease with important morbidity and mortality. The aim of this study is to document the importance of 1,5-anhydroglucitol (1,5-AG) for the diagnosis of prediabetes and DM, as well as to compare the 1,5-AG with other glycemic markers in order to understand which one is the better diagnostic tool. Between April 2012 and December 2012, 128 participants enrolled in the study. Participants were split into five groups that are IFG, IGT, IFG+IGT, diabetic and control groups by their OGTT results. The diagnostic value of markers was compared by ROC (receiver operating characteristic) method. The mean serum 1,5-AG levels in the diabetic group (33.38 nmol/ml) were lower than, IFG (59.83 nmol/ml), IGT (54.44 nmol/ml), IFG+IGT (51.98 nmol/ml) and control groups (73.24 nmol/ml). When analyzed in the total study population serum 1,5-AG levels did not differ by gender significantly. When analyzed in the total study population, 1,5-AG correlates inversely with age significantly (p = 0.036). In subgroup analysis, in the control group, serum 1,5-AG level was also inversely correlated with age (p = 0.087). The best marker for the diagnosis of prediabetes and DM was fasting plasma glucose (FPG). 1,5-AG was not found to be effective for the diagnosis of DM. This study, contributes to our knowledge of the efficiency and cut-off values of 1,5-AG for the diagnosis of prediabetes and DM. In future, there is a need for larger studies with more standardized and commonly used measurement methods for 1,5-AG, in order to evaluate the efficiency of 1,5-AG for the diagnosis of prediabetes and DM.
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Affiliation(s)
- Umit Yavuz Malkan
- Department of Internal Medicine, School of Medicine, Ufuk University, Ankara, Turkey
| | - Gursel Gunes
- Department of Internal Medicine, School of Medicine, Ufuk University, Ankara, Turkey
| | - Ahmet Corakci
- Department of Endocrinology, School of Medicine, Ufuk University, Ankara, Turkey
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17
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Comparison of control fasting plasma glucose of exercise-only versus exercise-diet among a pre-diabetic population: a meta-analysis. Eur J Clin Nutr 2015; 70:424-30. [PMID: 26330149 DOI: 10.1038/ejcn.2015.128] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Revised: 06/06/2015] [Accepted: 07/01/2015] [Indexed: 01/04/2023]
Abstract
BACKGROUND/OBJECTIVES Exercise is considered a protective factor in the prevention of type 2 diabetes, although its role as a sole treatment for pre-diabetes remains unknown. The present meta-analysis compared the effect of exercise-only with exercise-diet interventions on plasma glucose levels among a pre-diabetic population. SUBJECTS/METHODS A literature search was conducted using PubMed, EMBASE and Cochrane databases. The Cochrane Collaboration tool was used to assess the quality of each trial. Two reviewers independently performed quality assessment of all included articles. A random effects model was used to calculate the pooled effect. RESULTS A total of 4021 participants from 12 studies were included in this meta-analysis, 2045 of them were in the intervention group and 1976 were in the control group. Compared with the exercise-only interventions, the exercise-diet interventions showed a significant effect on decreasing fasting plasma glucose (FPG) levels, with a weighted mean difference (WMD) =-0.22 mmol/l, 95% confidence interval (CI): -0.25, -0.18 (Z=12.06, P<0.05). The subgroup effect of exercise-only interventions did not produce a statistically significant result (WMD=-0.09 mmol/l, 95% CI: -0.18, 0.00, Z=1.91, P>0.05). According to the intervention periods, the pooled effect in the ⩾2-year group was the highest, and its WMD (95% CI) was -0.24 mmol/l (-0.43,-0.05). The pooled effects were statistically significant among the elderly and those of American and European descent, with WMD (95% CI) being -0.19 mmol/l (95% CI: -0.22, -0.15), -0.17 mmol/l (-0.21,-0.12) and -0.22 mmol/l (-0.27, -0.17), respectively. CONCLUSIONS Evidence from published trials indicates that exercise-diet interventions showed a significant effect on decreasing FPG levels.
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18
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Zemlin AE, Matsha TE, Kengne AP, Erasmus RT. Derivation and validation of an HbA1c optimal cutoff for diagnosing prediabetes in a South African mixed ancestry population. Clin Chim Acta 2015; 448:215-9. [DOI: 10.1016/j.cca.2015.06.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Accepted: 06/13/2015] [Indexed: 12/16/2022]
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Loizzo A, Spampinato SM, Fortuna A, Vella S, Fabi F, Del Basso P, Campana G, Loizzo S. Antisense versus proopiomelanocortin mRNA reduces vascular risk in a murine model of type-2 diabetes following stress exposure in early post-natal life. Peptides 2015; 64:34-9. [PMID: 25554217 DOI: 10.1016/j.peptides.2014.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 12/20/2014] [Accepted: 12/20/2014] [Indexed: 12/19/2022]
Abstract
Mechanisms of vascular complications in type-2 diabetes patients and animal models are matter of debate. We previously demonstrated that a double-stress model applied to male mice during nursing period produces enduring hyperfunction of endogenous opioid and adrenocorticotropin (ACTH)-corticosteroid systems, accompanied by type-2 diabetes-like alterations in adult animals. Administration of the opioid receptor antagonist naloxone, or of an antisense oligodeoxynucleotide versus proopiomelanocortin mRNA, capable to block the pro-opiomelanocortin-derived peptides β-endorphin and ACTH, selectively prevent these alterations. Here, we investigated alterations produced by our stress model on aorta endothelium-dependent relaxation and contractile responses. Mice, stressed during nursing period, showed in the adulthood hormonal and metabolic type-2 diabetes-like alterations, including hyperglycemia, increased body weight and increased plasma ACTH and corticosterone levels. Ex vivo isolated aorta rings, gathered from stressed mice, were less sensitive to noradrenaline-induced contractions versus controls. This effect was blocked by nitric-oxide synthase-inhibitor l-N(G)-nitroarginine added to bath organ solution. Aorta rings relaxation caused by acetylcholine was enhanced in stressed mice versus controls, but following treatment with the nitric-oxide donor sodium nitroprusside, concentration-relaxation curves in aorta from stressed groups were similar to controls. Therefore, vascular response alterations to physiologic-pharmacologic stimuli were apparently due to nitric-oxide hyperfunction-dependent mechanisms. Aorta functional alterations, and plasma stress hormones enhancement, were prevented in mice stressed and treated with antisense oligodeoxinucleotide, addressed to reduce ACTH- and corticosteroid-mediated hyperfunction. This study demonstrates the key role of ACTH-corticosteroid axis hyperfunction for the triggering of vascular conditions in male adult rodents following postnatal stress in a type-2 diabetes model.
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Affiliation(s)
- Alberto Loizzo
- Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, via Regina Elena 299, 00161 Roma, Italy
| | - Santi M Spampinato
- Department of Pharmacy and Biotechnology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Andrea Fortuna
- Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, via Regina Elena 299, 00161 Roma, Italy
| | - Stefano Vella
- Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, via Regina Elena 299, 00161 Roma, Italy
| | - Fulvia Fabi
- Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, via Regina Elena 299, 00161 Roma, Italy
| | - Paola Del Basso
- Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, via Regina Elena 299, 00161 Roma, Italy
| | - Gabriele Campana
- Department of Pharmacy and Biotechnology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Stefano Loizzo
- Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, via Regina Elena 299, 00161 Roma, Italy.
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de Abreu L, Holloway KL, Kotowicz MA, Pasco JA. Dysglycaemia and Other Predictors for Progression or Regression from Impaired Fasting Glucose to Diabetes or Normoglycaemia. J Diabetes Res 2015; 2015:373762. [PMID: 26273669 PMCID: PMC4530268 DOI: 10.1155/2015/373762] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 06/10/2015] [Accepted: 07/07/2015] [Indexed: 12/26/2022] Open
Abstract
AIMS Diabetes mellitus is a growing health problem worldwide. This study aimed to describe dysglycaemia and determine the impact of body composition and clinical and lifestyle factors on the risk of progression or regression from impaired fasting glucose (IFG) to diabetes or normoglycaemia in Australian women. METHODS This study included 1167 women, aged 20-94 years, enrolled in the Geelong Osteoporosis Study. Multivariable logistic regression was used to identify predictors for progression to diabetes or regression to normoglycaemia (from IFG), over 10 years of follow-up. RESULTS At baseline the proportion of women with IFG was 33.8% and 6.5% had diabetes. Those with fasting dysglycaemia had higher obesity-related factors, lower serum HDL cholesterol, and lower physical activity. Over a decade, the incidence of progression from IFG to diabetes was 18.1 per 1,000 person-years (95% CI, 10.7-28.2). Fasting plasma glucose and serum triglycerides were important factors in both progression to diabetes and regression to normoglycaemia. CONCLUSIONS Our results show a transitional process; those with IFG had risk factors intermediate to normoglycaemics and those with diabetes. This investigation may help target interventions to those with IFG at high risk of progression to diabetes and thereby prevent cases of diabetes.
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Affiliation(s)
- L. de Abreu
- School of Medicine, Deakin University, 285 Ryrie Street, Geelong, VIC 3220, Australia
| | - Kara L. Holloway
- School of Medicine, Deakin University, 285 Ryrie Street, Geelong, VIC 3220, Australia
- *Kara L. Holloway:
| | - Mark A. Kotowicz
- School of Medicine, Deakin University, 285 Ryrie Street, Geelong, VIC 3220, Australia
- Department of Medicine, NorthWest Academic Centre, The University of Melbourne, 176 Furlong Road, St Albans, VIC 3021, Australia
- Barwon Health, Ryrie Street, Geelong, VIC 3220, Australia
| | - Julie A. Pasco
- School of Medicine, Deakin University, 285 Ryrie Street, Geelong, VIC 3220, Australia
- Department of Medicine, NorthWest Academic Centre, The University of Melbourne, 176 Furlong Road, St Albans, VIC 3021, Australia
- Barwon Health, Ryrie Street, Geelong, VIC 3220, Australia
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König D, Kookhan S, Schaffner D, Deibert P, Berg A. A meal replacement regimen improves blood glucose levels in prediabetic healthy individuals with impaired fasting glucose. Nutrition 2014; 30:1306-9. [DOI: 10.1016/j.nut.2014.03.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 02/20/2014] [Accepted: 03/16/2014] [Indexed: 02/08/2023]
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22
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The 2012 SEMDSA Guideline for the Management of Type 2 Diabetes (Revised). JOURNAL OF ENDOCRINOLOGY, METABOLISM AND DIABETES OF SOUTH AFRICA 2014. [DOI: 10.1080/22201009.2012.10872287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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23
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The 2012 SEMDSA Guideline for the Management of type 2 Diabetes. JOURNAL OF ENDOCRINOLOGY METABOLISM AND DIABETES OF SOUTH AFRICA 2014. [DOI: 10.1080/22201009.2012.10872277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Yuce S, Cure E, Sezgin H, Cure MC, Algün E. Has the Required Importance Been given to the Diagnosis and Treatment of Prediabetes? Int J Prev Med 2014; 5:1071-2. [PMID: 25489460 PMCID: PMC4258665 DOI: pmid/25489460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 05/06/2014] [Indexed: 02/07/2023] Open
Affiliation(s)
- Suleyman Yuce
- Department of Internal Medicine, School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Erkan Cure
- Department of Internal Medicine, School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
- Correspondence to: Dr. Erkan Cure, Department of Internal Medicine, Recep Tayyip Erdogan University, School of Medicine, Rize 53100, Turkey. E-mail:
| | - Hacer Sezgin
- Department of Family Medicine, School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Medine Cumhur Cure
- Department of Biochemistry, School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ekrem Algün
- Department of Endocrinology, School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
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Iraj B, Feizi A, Abdar-Esfahani M, Heidari-Beni M, Zare M, Amini M, Parsa F. Serum uric acid level and its association with cardiometabolic risk factors in prediabetic subjects. JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2014; 19:262-7. [PMID: 24949036 PMCID: PMC4061650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 02/04/2014] [Accepted: 02/28/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND Excess serum uric acid (UA) accumulation can lead to various diseases. Increasing evidences reveal that UA may have a key role in the pathogenesis of metabolic syndrome. Little is known about the associations of UA levels with cardiometabolic risk factors in prediabetic individuals. This study was designed to evaluate the association between UA and cardiometabolic risk factors in prediabetic subjects with family history of diabetes compared with those with normal glucose tolerance (NGT). MATERIALS AND METHODS In a cross-sectional setting, a sample containing 643 (302 prediabetic subjects and 341 normal) of the first-degree relatives of diabetic patients aged 35-55-years old were investigated. Samples were assessed in prediabetic and normal groups using glucose tolerance categories. Prediabetes was defined based on American Diabetes Association (ADA) criteria. Body weight and height, systolic and diastolic blood pressure (SBP and DBP), UA, creatinine (Cr), albumin (Alb), fasting blood glucose (FBG), hemoglobin A1c (HbA1c), and lipid profiles were measured and compared between two groups. RESULTS Prediabetic persons were older and obese than normal persons. Also, prediabetic persons (5.2 ± 1.3 mg/dl) had significantly higher UA than normal persons (4.9 ± 1.4 mg/dl) (P < 0.05). FBG after 0, 30, 60, and 120 min in prediabetic were higher than normal persons (P < 0.001). With respect to metabolic parameters, the patients in the higher UA quartiles exhibited higher levels of body mass index (BMI), SBP, FBG and triglycerides (TG). The higher quartiles of UA tended to be associated with higher BMI and higher total cholesterol (TC) in females prediabetic persons. Based on logistic regression analysis in different models, UA was positively (odds ratio (OR) >1, P < 0.05) associated with glucose tolerance categories. This association remained statistically significant after adjusting the effects of age and BMI. Also, the association between glucose tolerance categories and UA were positively significant in both genders. CONCLUSION High UA level was associated with some cardiometabolic risk factors in prediabetic individuals compared with normal person. UA level was also a significant predictor for prediabetes condition.
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Affiliation(s)
- Bijan Iraj
- Assistant Professor, Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Awat Feizi
- Associate Professor of Biostatistics, Department of Biostatistics and Epidemiology, School of Health, and Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Morteza Abdar-Esfahani
- Professor of Cardiology, Aadvanced (3D) Echocardiologist, Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Motahar Heidari-Beni
- PhD Student, Food Security Research Center, Department of Community Nutrition, School of Nutrition & Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Zare
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Masoud Amini
- Professor, Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Parsa
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran,Address for correspondence: Dr. Fatemeh Parsa, Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran. E-mail:
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Goyal SN, Haiderali S, Reddy M N, Arya DS, Patil CR. Prediabetes: grounds of pitfall signalling alteration for cardiovascular disease. RSC Adv 2014. [DOI: 10.1039/c4ra10366a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Prediabetes manifested by impaired glucose tolerance and impaired fasting glucose offers high risk of myocardial dysfunction by causing endothelial dysfunction, inflammation, oxidative stress, atherosclerosis and genetic alterations.
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Affiliation(s)
- Sameer N. Goyal
- Cardiovascular Pharmacology Division
- Department of Pharmacology
- R. C. Patel Institute of Pharmaceutical Education and Research
- Dhule, India
| | - Shaikh Haiderali
- Cardiovascular Pharmacology Division
- Department of Pharmacology
- R. C. Patel Institute of Pharmaceutical Education and Research
- Dhule, India
| | - Navya Reddy M
- Cardiovascular Pharmacology Division
- Department of Pharmacology
- R. C. Patel Institute of Pharmaceutical Education and Research
- Dhule, India
| | - Dharamvir Singh Arya
- Department of Pharmacology
- All India Institute of Medical Sciences
- New Delhi-110029, India
| | - Chandragouda R. Patil
- Cardiovascular Pharmacology Division
- Department of Pharmacology
- R. C. Patel Institute of Pharmaceutical Education and Research
- Dhule, India
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Fan HQ, Tang W, Wang ZX, Wang SJ, Qin YH, Fu Q, Gao Y, Sun M, Zhang M, Zhou HW, Yang T. Association of serum uric acid with 2-hour postload glucose in Chinese with impaired fasting plasma glucose and/or HbA1c. PLoS One 2013; 8:e67759. [PMID: 23844086 PMCID: PMC3700996 DOI: 10.1371/journal.pone.0067759] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Accepted: 05/22/2013] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To examine whether serum uric acid (SUA) is associated with 2-hour postload glucose (2-h PG) in Chinese with impaired fasting plasma glucose (IFG) and/or HbA1c (IA1C). RESEARCH DESIGN AND METHODS Anthropometric and biochemical examinations, such as SUA concentration, were performed in 3763 individuals from all the villages in Baqiao County, China. A 75-g oral glucose tolerance test (OGTT) was conducted in 1197 Chinese with prediabetes as having IFG (110 ≤ fasting plasma glucose [FPG] <126 mg/dl and HbA1c <6.5%), IA1C (5.7% ≤ HbA1c <6.5% and FPG <126 mg/dl), or both. RESULTS The present study included 1197 participants with IFG and/or IA1C (mean age 56.5 ± 10.3 years; 50.6% men). In multivariate linear regression, after adjustment for gender, age, smoking and drinking, body mass index (BMI), systolic and diastolic blood pressure (SBP, DBP), lipid profiles, logarithmic transformed C-reactive protein (log-CRP), estimated glomerular filtration rate (e-GFR), FPG and HbA1c, with a 1-mg/dl increment of SUA, 2-h PG increased by 5.04 ± 0.72 (P<0.001), 3.06 ± 1.08 (P = 0.001), 5.40 ± 1.26 (P<0.001), and 2.34 ± 2.16 mg/dl (P = 0.056) in all participants, in participants with normal glucose tolerance (NGT), with impaired glucose tolerance (IGT), and with 2-h newly diagnosed diabetes (2-h NDM, with 2-h PG ≥ 200 mg/dl), respectively. In both men and women, 2-h PG increased progressively and significantly from the lower to the upper SUA tertiles (P<0.001). Moreover, in multivariate logistic regression, 1-standard deviation (SD; 1.53 mg/dl) increment of SUA was significantly associated with a 36% higher risk for 2-h NDM (Odds ratio [CI 95%]: 1.36 [1.09-1.99]; P = 0.03). CONCLUSIONS SUA is significantly associated with 2-h PG in Chinese with IFG and/or IA1C.
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Affiliation(s)
- Hong-Qi Fan
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wei Tang
- Department of Endocrinology, The Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin, Jiangsu, China
| | - Zhi-Xiao Wang
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Su-Juan Wang
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yue-Hua Qin
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qi Fu
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yuan Gao
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Min Sun
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Mei Zhang
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hong-Wen Zhou
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tao Yang
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- * E-mail:
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Sjöholm K, Anveden A, Peltonen M, Jacobson P, Romeo S, Svensson PA, Sjöström L, Carlsson LMS. Evaluation of current eligibility criteria for bariatric surgery: diabetes prevention and risk factor changes in the Swedish obese subjects (SOS) study. Diabetes Care 2013; 36:1335-40. [PMID: 23359358 PMCID: PMC3631844 DOI: 10.2337/dc12-1395] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Patients with a BMI <35 kg/m(2) and patients with a BMI between 35 and 40 kg/m(2) without comorbidities are noneligible by current eligibility criteria for bariatric surgery. We used Swedish obese subjects (SOS) to explore long-term outcomes in noneligible versus eligible patients. RESEARCH DESIGN AND METHODS The SOS study involved 2,010 obese patients who underwent bariatric surgery (68% vertical-banded gastroplasty, 19% banding, and 13% gastric bypass) and 2,037 contemporaneously matched obese controls receiving usual care. At inclusion, the participant age was 37-60 years and BMI was ≥34 kg/m(2) in men and ≥38 kg/m(2) in women. The effect of surgery was assessed in patients that do (n = 3,814) and do not (n = 233) meet current eligibility criteria. The date of analysis was 1 January 2012. The follow-up time was up to 20 years, with a median of 10 years. RESULTS Cardiovascular risk factors were significantly improved both in noneligible and eligible individuals after 10 years of follow-up. Surgery reduced the diabetes incidence in both the noneligible (adjusted hazard ratio 0.33 [95% CI 0.13-0.82], P = 0.017) and eligible (0.27 [0.22-0.33], P < 0.001) groups. We could not detect a difference in the effect of surgery between the groups (adjusted interaction P value = 0.713). CONCLUSIONS Bariatric surgery drastically reduced the incidence of type 2 diabetes both in noneligible and eligible patients and improved cardiovascular risk factors in both groups. Our results show that strict BMI cutoffs are of limited use for bariatric surgery prioritization if the aim is to prevent diabetes and improve cardiovascular risk factors.
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Xu W, Xu Z, Jia J, Xie Y, Wang HX, Qi X. Detection of Prediabetes and Undiagnosed Type 2 Diabetes: A Large Population-Based Study. Can J Diabetes 2012. [DOI: 10.1016/j.jcjd.2012.04.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Shpilberg Y, Beaudry JL, D'Souza A, Campbell JE, Peckett A, Riddell MC. A rodent model of rapid-onset diabetes induced by glucocorticoids and high-fat feeding. Dis Model Mech 2011; 5:671-80. [PMID: 22184636 PMCID: PMC3424464 DOI: 10.1242/dmm.008912] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Glucocorticoids (GCs) are potent pharmacological agents used to treat a number of immune conditions. GCs are also naturally occurring steroid hormones (e.g. cortisol, corticosterone) produced in response to stressful conditions that are thought to increase the preference for calorie dense 'comfort' foods. If chronically elevated, GCs can contribute to the development of type 2 diabetes mellitus (T2DM), although the mechanisms for the diabetogenic effects are not entirely clear. The present study proposes a new rodent model to investigate the combined metabolic effects of elevated GCs and high-fat feeding on ectopic fat deposition and diabetes development. Male Sprague-Dawley rats (aged 7-8 weeks) received exogenous corticosterone or wax (placebo) pellets, implanted subcutaneously, and were fed either a standard chow diet (SD) or a 60% high-fat diet (HFD) for 16 days. Animals given corticosterone and a HFD (cort-HFD) had lower body weight and smaller relative glycolytic muscle mass, but increased relative epididymal mass, compared with controls (placebo-SD). Cort-HFD rats exhibited severe hepatic steatosis and increased muscle lipid deposition compared with placebo-SD animals. Moreover, cort-HFD animals were found to exhibit severe fasting hyperglycemia (60% increase), hyperinsulinemia (80% increase), insulin resistance (60% increase) and impaired β-cell response to oral glucose load (20% decrease) compared with placebo-SD animals. Thus, a metabolic syndrome or T2DM phenotype can be rapidly induced in young Sprague-Dawley rats by using exogenous GCs if a HFD is consumed. This finding might be valuable in examining the physiological and molecular mechanisms of GC-induced metabolic disease.
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Affiliation(s)
- Yaniv Shpilberg
- York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada
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Whyte JJ, Prather RS. Genetic modifications of pigs for medicine and agriculture. Mol Reprod Dev 2011; 78:879-91. [PMID: 21671302 PMCID: PMC3522184 DOI: 10.1002/mrd.21333] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 05/09/2011] [Indexed: 12/18/2022]
Abstract
Genetically modified swine hold great promise in the fields of agriculture and medicine. Currently, these swine are being used to optimize production of quality meat, to improve our understanding of the biology of disease resistance, and to reduced waste. In the field of biomedicine, swine are anatomically and physiologically analogous to humans. Alterations of key swine genes in disease pathways provide model animals to improve our understanding of the causes and potential treatments of many human genetic disorders. The completed sequencing of the swine genome will significantly enhance the specificity of genetic modifications, and allow for more accurate representations of human disease based on syntenic genes between the two species. Improvements in both methods of gene alteration and efficiency of model animal production are key to enabling routine use of these swine models in medicine and agriculture.
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Affiliation(s)
- Jeffrey J. Whyte
- National Swine Resource and Research Center, University of Missouri, Columbia, MO, U.S.A
- Department of Biomedical Sciences, University of Missouri, Columbia, MO, U.S.A
- Division of Animal Science, University of Missouri, Columbia, MO, U.S.A
| | - Randall S. Prather
- National Swine Resource and Research Center, University of Missouri, Columbia, MO, U.S.A
- Division of Animal Science, University of Missouri, Columbia, MO, U.S.A
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