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Prognostic value of renal function for upper tract urothelial carcinoma who underwent radical nephroureterectomy: Sex differences. J Formos Med Assoc 2022; 121:2182-2190. [DOI: 10.1016/j.jfma.2022.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 02/24/2022] [Accepted: 03/15/2022] [Indexed: 11/23/2022] Open
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Pan X, Lin X, Huang X, Xu J, Ye L, Zhang T, Hu S, Jiang H, Ren Y, Shan PF. The Burden of Diabetes-Related Chronic Kidney Disease in China From 1990 to 2019. Front Endocrinol (Lausanne) 2022; 13:892860. [PMID: 35784566 PMCID: PMC9240757 DOI: 10.3389/fendo.2022.892860] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/20/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To analyze the trends in disease burden of diabetes-related chronic kidney disease (CKD) by year, age, gender and types of diabetes in China from 1990 to 2019. METHODS Data on prevalence, deaths and disability-adjusted life years (DALYs) for diabetes-related CKD were extracted from the Global Burden of Disease (GBD) 2019 study. Analyses were performed by year, age, gender and types of diabetes. RESULTS In China, the numbers of deaths and DALYs of diabetes-related CKD continuously increased but the age-standardized rates (per 100,000 population) decreased over 30 years, in which the numbers of deaths and DALYs attributable to type 1 diabetes mellitus (T1DM)-related CKD barely changed and the age-standardized rates decreased over the years; and the number of deaths and DALYs attributable to type 2 diabetes mellitus (T2DM)-related CKD continuously increased, but the age-standardized rates also decreased. In 2019, 76.03 (58.24-95.61) thousand deaths and 2.13 (1.65-2.67) million DALYs were attributable to diabetes-related CKD, of which, T2DM accounted for 83.32% and 77.0% respectively, and T1DM accounted for the rest. Increasing gender disparity was seen, with males being more heavily impacted. The burden of diabetes-related CKD varied among different age groups, with the numbers of deaths and DALYs attributable to T1DM-related CKD peaking between 45 and 54 years of age and T2DM-related CKD peaking between 75 and 79 years of age; and the crude rates of deaths and DALYs attributable to T1DM-related CKD peaking between 70 and 79 years of age and 40 to 54 years of age, respectively, and T2DM-related CKD peaking over 90 years of age. Among neighboring and G20 countries, the burden of diabetes-related CKD in China was relatively controlled reflected by the ranking of adjusted death and DALYs rates. CONCLUSIONS The burden of diabetes-related CKD in China worsens and shows gender disparities and different age distribution. Greater efforts are needed to improve the health outcomes of these patients, especially among males.
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Affiliation(s)
- Xiaowen Pan
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xiling Lin
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xin Huang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Jingya Xu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Lingxia Ye
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Tianyue Zhang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Shaoning Hu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hongwei Jiang
- Endocrine and Metabolic Disease Center, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology; Medical Key Laboratory of Hereditary Rare Diseases of Henan; Luoyang Sub-Center of National Clinical Research Center for Metabolic Diseases, Luoyang, China
- *Correspondence: Peng-Fei Shan, ; Yuezhong Ren, ; Hongwei Jiang,
| | - Yuezhong Ren
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Peng-Fei Shan, ; Yuezhong Ren, ; Hongwei Jiang,
| | - Peng-Fei Shan
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
- Binjiang Institute of Zhejiang University, Hangzhou, China
- *Correspondence: Peng-Fei Shan, ; Yuezhong Ren, ; Hongwei Jiang,
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Strom A, Kaul K, Brüggemann J, Ziegler I, Rokitta I, Püttgen S, Szendroedi J, Müssig K, Roden M, Ziegler D. Lower serum extracellular superoxide dismutase levels are associated with polyneuropathy in recent-onset diabetes. Exp Mol Med 2017; 49:e394. [PMID: 29147011 PMCID: PMC5704187 DOI: 10.1038/emm.2017.173] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 05/02/2017] [Indexed: 11/17/2022] Open
Abstract
Increased oxidative stress is implicated in the pathogenesis of experimental diabetic neuropathy, but translational evidence in recent-onset diabetes is scarce. We aimed to determine whether markers of systemic oxidative stress are associated with diabetic sensorimotor polyneuropathy (DSPN) in recent-onset diabetes. In this cross-sectional study, we measured serum concentrations of extracellular superoxide dismutase (SOD3), thiobarbituric acid reactive substances (TBARS), and reduced glutathione (GSH) in 107 type 1 and 215 type 2 diabetes patients from the German Diabetes Study baseline cohort and 37 glucose-tolerant individuals (controls). DSPN was defined by electrophysiological and clinical criteria (Toronto Consensus, 2011). SOD3 and GSH concentrations were lower in individuals with type 1 and type 2 diabetes compared with concentrations in controls (P<0.0001). In contrast, the TBARS concentration was higher in participants with type 1 diabetes and type 2 diabetes compared with levels in controls (P<0.0001). In addition, the SOD3 concentration was higher in participants with type 1 diabetes compared to concentrations in those with type 2 diabetes (P<0.0001). A low SOD3 concentration was associated with DSPN in individuals with type 1 diabetes (β=-0.306, P=0.002), type 2 diabetes (β=-0.164, P=0.017), and in both groups combined (β=-0.206, P=0.0003). Lower SOD3 concentrations were associated with decreased motor nerve conduction velocity (NCV) in men and, to a lesser degree, with reduced sensory NCV in women with diabetes. In conclusion, several biomarkers of oxidative stress are altered in recent-onset diabetes, with only a lower SOD3 concentration being linked to the presence of DSPN, suggesting a role for reduced extracellular antioxidative defense against superoxide in the early development of DSPN.
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Affiliation(s)
- Alexander Strom
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Kirti Kaul
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Jutta Brüggemann
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Iris Ziegler
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Ilka Rokitta
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Sonja Püttgen
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Julia Szendroedi
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Karsten Müssig
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Michael Roden
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Dan Ziegler
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - for the GDS Group5
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
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Brzezinski RY, Etz-Hadar I, Grupper A, Ehrenwald M, Shapira I, Zeltser D, Berliner S, Rogowski O, Eldor R, Shenhar-Tsarfaty S. Sex difference in the risk for exercise-induced albuminuria correlates with hemoglobin A1C and abnormal exercise ECG test findings. Cardiovasc Diabetol 2017; 16:79. [PMID: 28645281 PMCID: PMC5481949 DOI: 10.1186/s12933-017-0560-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 06/07/2017] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Albuminuria is an established marker for endothelial dysfunction and cardiovascular risk in diabetes and prediabetes. Exercise induced albuminuria (EiA) appears earlier and may be a more sensitive biomarker for renal endothelial damage. We sought to examine the association between EiA, parameters of the metabolic syndrome, A1C levels, exercise ECG test results and sex related differences in a large cohort of healthy, pre-diabetic and diabetic subjects. METHODS A total of 3029 participants from the Tel-Aviv Medical Center Inflammation Survey cohort (mean age 46 years, 73% men) were analyzed. Multiple physiologic and metabolic parameters including A1C were collected and albuminuria was measured in all subjects before and immediately after completing an exercise ECG test. RESULTS Exercise increased urinary albumin to creatinine ratio (ΔEiA) by 2.8 (0-13.6) mg/g for median (IQR) compared to rest albuminuria (p < 0.001). An increase in ΔEiA was observed with accumulating parameters of the metabolic syndrome. ΔEiA showed significant interaction with sex and A1C levels; i.e. women with A1C > 6.5% had an increased risk of higher ΔEiA (p < 0.001). Using a cutoff of ΔEiA > 13 mg/g (top quartile) we found that women with ΔEiA > 13 mg/g were at greater risk for abnormal exercise ECG findings, (OR = 2.7, p = 0.001). CONCLUSION Exercise promotes excessive urinary albumin excretion in dysmetabolic patients. In women, a significant correlation exists between ΔEiA and A1C levels. A cutoff of ΔEiA > 13 mg/g in women may be used to identify populations at risk for abnormal exercise ECG test findings and perhaps increased cardiovascular risk. Future studies will be needed to further validate the usefulness of ΔEiA as a biomarker for cardiovascular risk in women with and without diabetes.
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Affiliation(s)
- Rafael Y. Brzezinski
- Department of Internal Medicine “C”, “D” and “E”, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann Street, 64239 Tel Aviv, Israel
| | - Inbal Etz-Hadar
- Department of Internal Medicine “C”, “D” and “E”, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann Street, 64239 Tel Aviv, Israel
| | - Ayelet Grupper
- Nephrology Department, Tel-Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Michal Ehrenwald
- Department of Internal Medicine “C”, “D” and “E”, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann Street, 64239 Tel Aviv, Israel
| | - Itzhak Shapira
- Department of Internal Medicine “C”, “D” and “E”, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann Street, 64239 Tel Aviv, Israel
| | - David Zeltser
- Department of Internal Medicine “C”, “D” and “E”, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann Street, 64239 Tel Aviv, Israel
| | - Shlomo Berliner
- Department of Internal Medicine “C”, “D” and “E”, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann Street, 64239 Tel Aviv, Israel
| | - Ori Rogowski
- Department of Internal Medicine “C”, “D” and “E”, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann Street, 64239 Tel Aviv, Israel
| | - Roy Eldor
- Diabetes Unit, Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Shani Shenhar-Tsarfaty
- Department of Internal Medicine “C”, “D” and “E”, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann Street, 64239 Tel Aviv, Israel
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Kautzky-Willer A, Harreiter J, Pacini G. Sex and Gender Differences in Risk, Pathophysiology and Complications of Type 2 Diabetes Mellitus. Endocr Rev 2016; 37:278-316. [PMID: 27159875 PMCID: PMC4890267 DOI: 10.1210/er.2015-1137] [Citation(s) in RCA: 1022] [Impact Index Per Article: 127.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The steep rise of type 2 diabetes mellitus (T2DM) and associated complications go along with mounting evidence of clinically important sex and gender differences. T2DM is more frequently diagnosed at lower age and body mass index in men; however, the most prominent risk factor, which is obesity, is more common in women. Generally, large sex-ratio differences across countries are observed. Diversities in biology, culture, lifestyle, environment, and socioeconomic status impact differences between males and females in predisposition, development, and clinical presentation. Genetic effects and epigenetic mechanisms, nutritional factors and sedentary lifestyle affect risk and complications differently in both sexes. Furthermore, sex hormones have a great impact on energy metabolism, body composition, vascular function, and inflammatory responses. Thus, endocrine imbalances relate to unfavorable cardiometabolic traits, observable in women with androgen excess or men with hypogonadism. Both biological and psychosocial factors are responsible for sex and gender differences in diabetes risk and outcome. Overall, psychosocial stress appears to have greater impact on women rather than on men. In addition, women have greater increases of cardiovascular risk, myocardial infarction, and stroke mortality than men, compared with nondiabetic subjects. However, when dialysis therapy is initiated, mortality is comparable in both males and females. Diabetes appears to attenuate the protective effect of the female sex in the development of cardiac diseases and nephropathy. Endocrine and behavioral factors are involved in gender inequalities and affect the outcome. More research regarding sex-dimorphic pathophysiological mechanisms of T2DM and its complications could contribute to more personalized diabetes care in the future and would thus promote more awareness in terms of sex- and gender-specific risk factors.
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Affiliation(s)
- Alexandra Kautzky-Willer
- Gender Medicine Unit (A.K.-W., J.H.), Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria; and Metabolic Unit (G.P.), Institute of Neuroscience, National Research Council, 35127 Padua, Italy
| | - Jürgen Harreiter
- Gender Medicine Unit (A.K.-W., J.H.), Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria; and Metabolic Unit (G.P.), Institute of Neuroscience, National Research Council, 35127 Padua, Italy
| | - Giovanni Pacini
- Gender Medicine Unit (A.K.-W., J.H.), Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria; and Metabolic Unit (G.P.), Institute of Neuroscience, National Research Council, 35127 Padua, Italy
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Lytvyn Y, Wan J, Lai V, Cohen P, Cherney DZI. The effect of sex on humanin levels in healthy adults and patients with uncomplicated type 1 diabetes mellitus. Can J Physiol Pharmacol 2014; 93:239-43. [PMID: 25615723 DOI: 10.1139/cjpp-2014-0401] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Diabetes mellitus (DM) is associated with a loss of renal and vascular protection in women compared with men, but the responsible mechanisms are unclear. Recent experimental work implicated humanin (HN) as a novel cytoprotective hormone in DM. Our goal was to measure sex-related differences in HN levels in uncomplicated type 1 DM patients (T1D) and healthy controls (HC), as well as the interaction between HN, circulating neurohormones, and vascular function. Plasma HN, cGMP and aldosterone, blood pressure (BP), glomerular filtration rate, and effective renal plasma flow (inulin and para-aminohippurate) were measured in HC (11 men, 10 women) and T1D (23 men and 18 women) during clamped euglycemia (4-6 mmol·L(-1)). Plasma HN levels were generally lower in HC men by comparison with the women, but the differences were not statistically significant. In contrast, levels in the T1D men were higher compared with the T1D women (p = 0.026) and HC men (p < 0.0001). In the HC men, but not the women, HN correlated negatively with BP, but not with renal function, cGMP, or aldosterone. In the T1D men, HN negatively correlated with plasma cGMP. In the T1D women, HN did not correlate with neurohormones or vascular function. Future work should determine the role of HN in the pathogenesis of sex-related vascular function differences in DM.
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Affiliation(s)
- Yuliya Lytvyn
- Division of Nephrology, University Health Network, University of Toronto, Toronto General Hospital, 585 University Avenue, Toronto, ON M5G 2N2, Canada., Department of Pharmacology and Toxicology, Faculty of Medicine University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8, Canada
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Schmaderer C, Kemmner S, Burkhardt K, Heemann U, Baumann M. Serum myeloid-related protein 8/14 complex is associated with microalbuminuria in patients with type 2 diabetes. Ther Adv Cardiovasc Dis 2014; 8:80-88. [PMID: 24667921 DOI: 10.1177/1753944714528270] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES Microalbuminuria (MA) is associated independently with cardiovascular risk and progression of renal disease in patients with diabetes and the normal population. MA is an accepted factor for microvascular defects, in particular in patients with diabetes, and is associated with inflammation. Activated transmigrating macrophages are key cells in these inflammatory processes. Based on the theory that myeloid-related protein 8/14 complex (MRP8/14) is secreted by transmigrating macrophages, we hypothesized that MA was accompanied by elevated MRP8/14 and investigated whether MA predicts MRP8/14 in patients with type 2 diabetes. METHODS A total of 86 men with type 2 diabetes were grouped according to urinary albumin excretion in normoalbuminuria and MA. Serum MRP8/14 levels were measured by enzyme-linked immunosorbent assay. Established cardiovascular risk factors were quantified in both groups and compared with urinary albumin excretion. RESULTS Albuminuria (mg/day) was positively associated with MRP8/14 (r = 0.34) and systemic blood pressure (r = 0.33). Patients with type 2 diabetes and MA demonstrated significantly higher MRP8/14 levels than patients with normoalbuminuria [median (interquartile range), 1.24 (0.97-2.28) µg/ml versus 0.97 (0.67-1.35) µg/ml, p < 0.05]. Serum creatinine levels, systolic blood pressure (SBP), very low density lipoprotein levels and the incidence of hypertension and coronary artery disease were significantly higher in the group with MA. Both groups did not differ significantly in other cardiovascular risk factors. MA was an independent predictor of serum MRP8/14 levels (β = 0.454) as well as SBP (β = 0.625) and haemoglobin A1c (β = 0.322). CONCLUSION Our data demonstrate that albumin excretion is associated with the process of macrophage activation determined by MRP8/14 levels. These data not only suggest tissue inflammation as a factor for elevated cardiovascular risk in patients with type 2 diabetes, they further point to a role of macrophage activation in this process.
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Affiliation(s)
- Christoph Schmaderer
- Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Stephan Kemmner
- Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Germany
| | | | - Uwe Heemann
- Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Germany
| | - Marcus Baumann
- Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Germany
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The effect of sex on endothelial function responses to clamped hyperglycemia in type 1 diabetes. Hypertens Res 2013; 37:220-4. [PMID: 24089261 DOI: 10.1038/hr.2013.136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 07/16/2013] [Accepted: 08/07/2013] [Indexed: 11/08/2022]
Abstract
Although the female sex is associated with renal protection in non-diabetic nephropathy, men and women with type 1 diabetes mellitus (T1D) have a similar risk of developing nephropathy. As hyperglycemia is associated with exaggerated effects on blood pressure and renal hyperfiltration in women versus men with T1D, we examined the influence of clamped hyperglycemia on flow mediated vasodilatation (FMD) to determine if this parameter contributes to sex-related differences in the vascular function. After a controlled diet for seven days, blood pressure, ultrasound derived FMD and circulating renin angiotensin system mediators were measured in men (n=30) and women (n=28) with T1D during clamped euglycemia and hyperglycemia. Men and women were similar in pre-study dietary parameters, age, diabetes duration, body mass index, HbA1c, renal function and proteinuria. The systolic blood pressure (SBP) was higher in men during clamped euglycemia (121±2 vs. 108±2 mm Hg, P<0.0001) and hyperglycemia (121±2 vs. 111±2 mm Hg, P<0.0001), as were the circulating levels of angiotensin II (P<0.05). SBP increased in response to hyperglycemia in women but not in men. Consistently with differences in blood pressure during clamped euglycemia, FMD was higher in women than in men (8.06±0.55 vs. 4.15±0.52%, P<0.0001). In contrast, between-group differences in FMD during clamped hyperglycemia did not reach significance owing to a decline in FMD in women, versus men, in response to clamped hyperglycemia (P=0.040 for between-group change in FMD). Clamped hyperglycemia suppresses FMD in women, but not in men, with uncomplicated T1D, which may contribute to the relative loss of protection against renal disease progression in women with T1D.
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Morteza A, Nakhjavani M, Asgarani F, Carvalho FLF, Karimi R, Esteghamati A. Inconsistency in albuminuria predictors in type 2 diabetes: a comparison between neural network and conditional logistic regression. Transl Res 2013; 161:397-405. [PMID: 23333109 DOI: 10.1016/j.trsl.2012.12.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Revised: 12/16/2012] [Accepted: 12/20/2012] [Indexed: 12/23/2022]
Abstract
Albuminuria is a sensitive marker to predict future cardiovascular events in patients with type 2 diabetes mellitus. However, current studies only use conventional regression models to discover predictors of albuminuria. We have used 2 different statistical models to predict albuminuria in type 2 diabetes mellitus: a multilayer perception neural network and a conditional logistic regression. Neural network models were used to predict the level of albuminuria in patients with type 2 diabetes mellitus, which include a matched case-control study for the population. For each case, we randomly selected 1 control matched by age and body mass index (BMI). The input variables were sex, duration of diabetes, systolic and diastolic blood pressure, glomerular filtration rate, high-density lipoprotein, low-density lipoprotein, triglyceride, high-density lipoprotein/triglyceride ratio, cholesterol, fasting blood sugar, and glycated hemoglobin. Age and BMI were included only in the neural network model. This model included 4 hidden layers and 1 bias. Relative error of predictions was 0.38% in the training group, 0.52% in the testing group, and 1.20% in the holdout group. The most robust predictors of albuminuria were high-density lipoprotein (21%), cholesterol (14.4%), and systolic blood pressure (9.7%). Using the conditional logistic regression model, glomerular filtration rate, time of onset to diabetes, and sex were significant indicators in the onset of albuminuria. Using a neural network model, we show that high-density lipoprotein is the most important factor in predicting albuminuria in type 2 diabetes mellitus. Our neural network model complements the current risk factor models to improve the care of patients with diabetes.
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Affiliation(s)
- Afsaneh Morteza
- Endocrinology and Metabolism Research Center, Vali-Asr Hospital, Tehran University of Medical Sciences, Tehran, Iran
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10
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Cherney DZI, Scholey JW, Sochett EB. Sex differences in renal responses to hyperglycemia, L-arginine, and L-NMMA in humans with uncomplicated type 1 diabetes. Diabetes Care 2013; 36:1290-6. [PMID: 23250800 PMCID: PMC3631825 DOI: 10.2337/dc12-1305] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Women exhibit exaggerated renal hemodynamic responses to hyperglycemia, which may promote kidney disease progression. Our aim was to determine if increased nitric oxide generation by l-arginine infusion would reverse this deleterious response to clamped hyperglycemia in women with type 1 diabetes mellitus. RESEARCH DESIGN AND METHODS Renal function, blood pressure, and plasma cyclic guanosine monophosphate (cGMP) were measured in 20 men and 15 women with type 1 diabetes mellitus during clamped euglycemia and clamped hyperglycemia. Renal function, blood pressure, and plasma cGMP responses to graded infusions of intravenous l-arginine and N(G)-monomethyl-l-arginine (l-NMMA) were measured during clamped hyperglycemia. RESULTS Subjects were young, normotensive, normoalbuminuric men and women who adhered to a high-sodium, moderate-protein diet. Plasma cGMP levels during euglycemia were generally lower in men compared with women, and systolic blood pressure (SBP) was higher in men. In response to hyperglycemia, cGMP levels did not change in men but did decline in women (Δ-1.10 ± 0.20 vs. Δ+0.05 ± 0.20 pmol/L, between-group effect of hyperglycemia on cGMP; P = 0.012). Hyperglycemia also was associated with an increase in SBP, glomerular filtration rate (GFR) (124 ± 6 to 143 ± 7 mL/min/1.73 m(2); P = 0.003) and filtration fraction (FF) in women, but these parameters did not change in men. In response to l-arginine during hyperglycemia, the increase in cGMP was exaggerated in women versus men and GFR and FF decreased in women only, back toward baseline values observed during clamped euglycemia. l-NMMA infusion did not exaggerate changes in hemodynamic function in response to hyperglycemia. CONCLUSIONS l-Arginine reversed the renal hemodynamic effects of hyperglycemia in women, suggesting that nitric oxide is an important regulator of sex-dependent vascular responses to hyperglycemia in humans.
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Affiliation(s)
- David Z I Cherney
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
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11
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Nakhjavani M, Morteza A, Jenab Y, Ghaneei A, Esteghamati A, Karimi M, Farokhian A. Gender difference in albuminuria and ischemic heart disease in type 2 diabetes. Clin Med Res 2012; 10:51-6. [PMID: 22031479 PMCID: PMC3355738 DOI: 10.3121/cmr.2011.1021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE The value of urinary albumin excretion in the prediction of myocardial ischemia in men and women with type 2 diabetes is not well understood. We questioned whether gender influences the albuminuria-ischemic heart disease relationship in patients with type 2 diabetes. METHODS We designed a matched case-control study of 926 patients with albuminuria (cases) and 926 age and body mass index matched patients without albuminuria (controls). Ischemic heart disease was defined as the presence of (1) history of angina pectoris or angina equivalent symptoms and critical care unit admission, (2) myocardial infarction and/or electrocardiographic evidence of Q-wave myocardial infarction, (3) coronary revascularization and/or stenting, (4) positive myocardial single-photon emission computed tomography scan, (5) ischemic ST-segment or T-wave changes, and (6) positive stress testing. RESULTS Patients with albuminuria had a lower glomerular filtration rate and a longer diabetes duration than patients without albuminuria. In the group of cases, there were a greater number of men with ischemic heart disease (120 of 370; 32.4%) compared to women (97 of 559; 17.4%) (P<0.001). The odds ratio of having ischemic heart disease according to the presence or absence of albuminuria was 1.25 [95% CI: 1.01-1.56] (P<0.05) in all studied populations, 0.79 [95% CI: 0.51-1.21] (P=0.14) in women, and 2.84 [95% CI: 1.68-4.79] (P<0.001) in men. We showed that diabetes duration, high-density lipoprotein, low-density lipoprotein, and hemoglobin A(1c) influence albuminuria in women, while diabetes duration, fasting blood sugar, and diastolic blood pressure influence albuminuria in men. CONCLUSIONS Men with albuminuria are at increased risk of ischemic heart disease compared to women. This may be related to the role of high-density lipoprotein on the albuminuria-gender relationship.
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Affiliation(s)
- Manouchehr Nakhjavani
- Endocrinology and Metabolism Research Center-EMRC, Vali-Asr Hospital, Tehran University of Medical Sciences, PO Box 13145-784, Tehran, Iran.
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Hung PH, Shen CH, Tsai HB, Hsiao CY, Chiang PC, Guo HR, Hung KY. Gender effect on renal outcome in patients with urothelial carcinoma. World J Urol 2011; 29:511-6. [PMID: 21594710 DOI: 10.1007/s00345-011-0682-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Accepted: 04/18/2011] [Indexed: 11/26/2022] Open
Abstract
PURPOSE Taiwan is a highly endemic area for urothelial carcinoma (UC) and chronic kidney disease (CKD). We evaluate the gender effect on the relationship between renal outcome and clinical characteristics of CKD patients with UC. METHODS The clinical and pathologic records of 404 patients were retrospectively analyzed. We calculated glomerular filtration rate (GFR) using the Modification of Diet in Renal Disease (MDRD) equation, and staged CKD status according to K/DOQI guideline. RESULTS The female group had a significantly higher proportion (67.6% vs 29.0%, P < 0.001) of upper urinary tract urothelial carcinoma (UUT-UC). Pathologically, the frequency of high T stage UC (32.4% and 19.1%; P = 0.003), high-grade UC (89.4% and 75.6%; P = 0.001), and larger UC (51.4% and 37.8%; P = 0.009) in the female patients were significantly higher, when compared with the male group. Male gender, diabetes, anemia, poor preoperative renal function, UUT-UC, and low-grade tumor were independent risk factors of poor renal outcome by multivariate analysis in these UC patients. Diabetes was a risk factor of poor renal outcome in male UUT-UC patients, but not in the female patients (P = 0.009). CONCLUSION Female gender had a more aggressive histological urothelial carcinoma pattern than male patients did, but paradoxically had a more favorable renal outcome.
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Affiliation(s)
- Peir-Haur Hung
- Division of Nephrology, Department of Internal Medicine, Chia-yi Christian Hospital, Chia-yi, Taiwan
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13
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Schneider MP, Schlaich MP, Harazny JM, Raff U, Ritt M, Ott C, Schmieder RE. Folic acid treatment normalizes NOS-dependence of vascular tone in the metabolic syndrome. Obesity (Silver Spring) 2011; 19:960-7. [PMID: 20864946 DOI: 10.1038/oby.2010.210] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Obese subjects with the metabolic syndrome (MS+) are more prone to microvascular complications than obese subjects without the metabolic syndrome (MS-). Excessive vascular nitric oxide (NO) production has been demonstrated in MS+ compared to MS-, perhaps driven by increased inflammation or oxidative stress. We tested whether in MS+, folic acid (FA) treatment could normalize NO synthase (NOS)-dependence of vascular tone in the retina and kidney. MS+ (n = 49) and MS- (n = 26) subjects were included in a randomized, double-blind, crossover trial. After 4-weeks' treatment with placebo or FA (5 mg/day), several cytokines (C-reactive protein (CRP), interleukin-1β, adiponectin), and markers of oxidative stress (glutathione/oxidized glutathione (GSH/GSSG) ratio, total antioxidant capacity (TAC)) were determined. NOS-dependence of retinal and renal vascular tone was assessed by retinal scanning laser Doppler flowmetry and renal clearance technique, respectively. FA had no effect on cytokine levels, but increased GSH/GSSG ratio overall (36 ± 76 vs. 102 ± 200, P = 0.04), indicative of a reduction in oxidative stress. In MS+, treatment with FA reduced NOS-dependence of retinal and renal vascular tone compared to placebo (P = 0.03 and P = 0.04, respectively). FA had no effect in MS-. After treatment with FA, NOS-dependence of retinal and renal vascular tone was similar between MS+ and MS-. Retinal and renal vascular tone in MS+ subjects is characterized by increased dependence on NOS. NOS-dependence in MS+ could be corrected by FA treatment to levels not dissimilar in MS-, and this was associated with a reduction in oxidative stress. Future trials should test whether these effects translate into a reduction of microvascular complications.
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Affiliation(s)
- Markus P Schneider
- Department of Nephrology and Hypertension, University of Erlangen, Nuremberg, Erlangen, Germany.
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Ames PRJ, Ortiz-Cadenas A, Torre IGDL, Nava A, Oregon-Miranda A, Batuca JR, Kojima K, Lopez LR, Matsuura E. Rosuvastatin Treatment is Associated with a Decrease of Serum Oxidised Low-Density Lipoprotein/Beta2-Glycoprotein I Complex Concentration in Type 2 Diabetes. ACTA ACUST UNITED AC 2010. [DOI: 10.1177/1474651410388057] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aims To evaluate the effect of rosuvastatin on oxidised low-density lipoprotein/beta2-glycoprotein I (oxLDL/β2GPI) complex concentration in type 2 diabetes mellitus. Methods Open label 2:1 assignment of consecutive diabetic patients into oral rosuvastatin (10 mg daily for six weeks) arm or observational arm with measurements of serum oxLDL/|β2GPI complexes, nitric oxide metabolites, asymmetric dimethyl arginine, nitrotyrosine alongside routine biochemistry at baseline and end of study in all patients. Results After rosuvastatin treatment the mean serum concentration of oxLDL/β2GPI decreased from 0.79±0.49 units/mL to 0.53±0.36 units/mL (p<0.001). The decrease was statistically independent from the decrements of mean cholesterol, LDL and triglyceride concentrations (p<0.001) but probably dependent on the decrement of nitrate (p<0.001). Conclusion In type 2 diabetes, treatment with rosuvastatin was associated with a significant reduction of serum concentrations of oxLDL/β2GPI complexes, which is in further support of the already proposed effects of the drug on the oxidative metabolism of lipids and/or LDL. The oxLDL/β2GPI complex may represent a surrogate marker of oxidative stress in type 2 diabetes.
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Affiliation(s)
- Paul RJ Ames
- Departments of Haematology and Rheumatology, Airedale General Hospital, Steeton, UK
| | - Alfredo Ortiz-Cadenas
- Department of Endocrinology, Hospital General de Occidente, Zapopan, Jalisco, Mexico
| | | | - Arnulfo Nava
- Department of Immunology and Rheumatology, Hospital General de Occidente, Zapopan, Jalisco, Mexico
- Clinical Epidemiology Research Unit, UMAE HE CMNO Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Aldo Oregon-Miranda
- Department of Immunology and Rheumatology, Hospital General de Occidente, Zapopan, Jalisco, Mexico
| | - Joana R Batuca
- Department of Pharmacology, New University of Lisbon, Lisbon, Portugal
| | - Kazuo Kojima
- Medical and Biological Laboratories Co., Ltd. Ina, Nagano, Japan
| | | | - Eiji Matsuura
- Department of Cell Chemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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