| 1. |
- Abs, Roger, et al.
(författare)
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Prevalence of diabetes mellitus in 6050 hypopituitary patients with adult-onset GH deficiency before GH replacement: a KIMS analysis
- 2013
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Ingår i: European Journal of Endocrinology. - 1479-683X. ; 168:3, s. 297-305
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Tidskriftsartikel (refereegranskat)abstract
- Objective: GH deficiency (GHD) in adults is characterized by a tendency toward obesity and an adverse body composition with visceral fat deposit and may thus predispose to the development of type 2 diabetes mellitus. The aim of this study was to assess the observed prevalence proportion (PP) and observed PP over expected PP ratio (standardized prevalence proportion ratio, SPR) of diabetes according to International Diabetes Federation criteria in a large cohort of GH-untreated adult-onset GHD patients. Design and methods: Associations between baseline variables and diabetes prevalence in 6050 GHD patients from KIMS (Pfizer International Metabolic Database) were studied and robust Poisson-regression analyses were performed. Comparisons between baseline status and HbA1c categories in the nondiabetic patients were done with covariance analysis. P values < 0.05 were considered statistically significant. Results: PP was 9.3% compared with the expected 8.2%. SPR was 1.13 (95% confidence intervals (95% CIs), 1.04-1.23), which was significantly increased in females (1.23; 95% CI, 1.09-1.38%) but not in males (SPR 1.04; 95% CI, 0.92-1.17%). PP increased significantly by age, familial diabetes, country selection, BMI, waist circumference, number of pituitary deficiencies, and GHD etiology. SPR decreased significantly by age and increased significantly by BMI, waist circumference, and IGF1 SDS. Multiple regression model showed that the most important impact on SPR was from age and BMI. HbA1c values of 6.0-6.5% were found in 9.5% of nondiabetic patients and were associated with higher BMI and waist circumference. Conclusions: GHD is associated with an increased prevalence of diabetes, largely to be explained by the adverse body composition. These data urge toward early initiation of lifestyle modification measures. European Journal of Endocrinology 168 297-305
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| 4. |
- Luger, Anton, et al.
(författare)
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Incidence of Diabetes Mellitus and Evolution of Glucose Parameters in Growth Hormone-Deficient Subjects During Growth Hormone Replacement Therapy A long-term observational study
- 2012
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Ingår i: Diabetes Care. - : American Diabetes Association. - 1935-5548 .- 0149-5992. ; 35:1, s. 57-62
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE Growth hormone (GH) deficiency is associated with insulin resistance and diabetes. The aim of the current study was to determine incidence of diabetes during GH replacement therapy (GHRT) and the effect of GHRT on fasting plasma glucose concentrations and HbA(1c) in adult patients with GH deficiency. RESEARCH DESIGN AND METHODS-A total of 5,143 GH-deficient patients (male 49.9%; mean age +/- SD, 49 +/- 1.3 years; BMI 29.1 +/- 5.9 kg/m(2)) were analyzed. Mean observation period was 3.9 years (range 0.01-13). Total number of patient-years was 20,106. Observed number of cases (O) was compared with expected number of cases (E). Reference rates were from Sweden, three additional European regions, and one U.S. region. RESULTS Patients who developed diabetes (n = 523) were older; had higher BMI, waist circumference, triglyceride concentrations, and blood pressure; and had lower HDL-cholesterol concentrations (P < 0.0001) than those who did not develop diabetes. Diabetes incidence was 2.6 per 1.00 patient-years, equal in both sexes, and significantly increased compared with the Swedish reference (O/E = 6.02; P < 0.0001) as well as with the four other populations (O/E = 2.11-5.22). O/E increased with BMI and decreased with duration of GHRT (P < 0.0001). There was no significant association with GH dose (P = 0.74) or IGF-1 SDS (P = 0.47). In subjects not developing diabetes, plasma glucose concentrations increased from 84.4 +/- 0.9 mg/dL to 89.5 +/- 0.8 mg/dL (0.70 mg/dL/year) and HbA(1c) increased from 4.74 +/- 0.04% to 5.09 +/- 0.13% (0.036%/year) after 6 years of GHRT. CONCLUSIONS-Diabetes incidence appears to be increased in GH-deficient patients receiving GHRT and exhibiting an adverse risk profile at baseline. Therefore, glucose homeostasis parameters should be monitored carefully in these patients.
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| 5. |
- Verhelst, Johan, et al.
(författare)
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Prevalence and characteristics of the metabolic syndrome in 2479 hypopituitary patients with adult-onset GH deficiency before GH replacement: a KIMS analysis
- 2011
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Ingår i: European Journal of Endocrinology. - 1479-683X. ; 165:6, s. 881-889
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Tidskriftsartikel (refereegranskat)abstract
- Objective: An increased risk of cardiovascular morbidity and mortality in adult GH deficiency (GHD) may be related to hypopituitarism but also to the presence of the metabolic syndrome (MetS). Our objective was to investigate the characteristics and prevalence of MetS as well as its comorbidities in adult GHD. Design: In KIMS (Pfizer International Metabolic Database) 2479 patients with severe adult-onset GHD, naive to GH replacement, with complete information on all MetS components were found. MetS was defined according to the National Cholesterol Education Program's Adult Treatment Panel III (NCEP) and the International Diabetes Foundation (IDF). Methods: The prevalence of MetS was calculated and compared with previously published data from the normal population. Associations were assessed between background variables, baseline variables, comorbidities, and MetS. Results: MetS was present in 43.1% (NCEP) and in 49.1% (IDF) of patients, clearly higher than data from the normal population (20-30%). MetS prevalence was related to age, GHD duration, and body mass index (BMI), but not to GHD severity, extent of hypopituitarism, or etiology of pituitary disease. Adjusted for age, gender, and BMI, patients with MetS had a higher prevalence ratio for diabetes mellitus: 4.65 (95% confidence interval (CI): 3.29-6.58), for cardiovascular morbidity: 1.91 (95% CI: 1.33-2.75), and for cerebrovascular morbidity: 1.77 (95% CI: 1.09-2.87) than patients without MetS. Conclusions: MetS is highly prevalent in GHD and is associated with a higher prevalence ratio for comorbidities. The presence of MetS in GHD may therefore contribute to the increased risk of cardiovascular morbidity and mortality found in these patients.
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| 6. |
- Melin, Eva, et al.
(författare)
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Depression, obesity, and smoking were independently associated with inadequate glycemic control in patients with type 1 diabetes
- 2013
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Ingår i: European Journal of Endocrinology. - : Bioscientifica. - 0804-4643 .- 1479-683X. ; 168:6, s. 861-869
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Tidskriftsartikel (refereegranskat)abstract
- Objective: The aim of this study was to explore the associations between inadequate glycemic control of diabetes and psychological, anthropometric, and lifestyle variables in a population-based cohort of type 1 diabetes patients. Design: Cross-sectional study. Methods: In this study, 292 patients with type 1 diabetes, aged 18-59 years, participated. Psychological data were assessed by self-report instruments: Hospital Anxiety and Depression Scale and Toronto Alexithymia Scale-20. Anthropometrics, blood analyses, data from medical records, and data from the Swedish National Diabetes Registry were collected. Results: Self-reported depression (adjusted odds ratio (AOR) 4.8), obesity (AOR 4.3), and smoking (AOR 3.0) were independently associated with inadequate glycemic control of diabetes (HbA1c>8.6%). Gender-stratified analyses showed that self-reported depression (AOR 19.8) and obesity (AOR 7.0) in women and smoking in men (AOR 4.2) were associated with HbA1c>8.6%. Alexithymia, antidepressant medication, and physical inactivity were associated with HbA1c>8.6% only in bivariate analyses. Alexithymia, self-rated anxiety, physical inactivity, and absence of abdominal obesity were associated with self-reported depression. Conclusions: Depression was the only psychological factor independently associated with HbA1c>8.6%. The association was of comparable importance as obesity and smoking, well-known risk factors for inadequate glycemic control and diabetes complications. The association between depression and HbA1c>8.6% was particularly strong for women. Alexithymia, which is a relatively stable personality trait, was associated with depression. In the future care of patients with diabetes, psychological aspects should be considered alongside anthropometrics and lifestyle factors in order to achieve the goals for HbA1c.
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| 7. |
- Melin, Eva, et al.
(författare)
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Depression, smoking, physical inactivity and season independently associated with midnight salivary cortisol in type 1 diabetes
- 2014
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Ingår i: BMC Endocrine Disorders. - : BioMed Central (BMC). - 1472-6823. ; 14, s. 1-10
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Tidskriftsartikel (refereegranskat)abstract
- Background: Disturbances of the circadian rhythm of cortisol secretion are associated with depression, coronary calcification, and higher all-cause and cardiovascular mortality. The primary aim of this study was to test the associations between midnight salivary cortisol (MSC), depression and HbA1c, and control for behavioural, environmental and intra individual factors with possible impact on cortisol secretion, like smoking, physical inactivity, season, medication, diabetes duration, severe hypoglycemia episodes, age and gender in patients with type 1 diabetes. Secondary aims were to present MSC levels for a reference group of non-depressed type 1 diabetes patients with a healthy life style (physically active and non-smoking), and to explore seasonal variations. Methods: A cross-sectional population based study of 196 patients (54% men and 46% women) aged 18-59 years that participated in a randomized controlled trial targeting depression in type 1 diabetes. Depression was assessed by the Hospital Anxiety and Depression Scale-depression subscale. MSC, HbA1c, serum-lipids, blood pressure, waist circumference and data from medical records and the Swedish National Diabetes Registry were collected. Results: Thirty four patients (17%) had MSC >= 9.3 nmol/L, which was associated with smoking (AOR 5.5), spring season (AOR 4.3), physical inactivity (AOR 3.9), self-reported depression (AOR 3.1), and older age (per year) (AOR 1.08). HbA1c > 70 mmol/mol (>8.6%) (AOR 4.2) and MSC >= 9.3 nmol/L (AOR 4.4) were independently linked to self-reported depression. Season was strongly associated with MSC levels and no other variables studied showed seasonal variations. In a reference group of 137 non-depressed patients with a healthy life style (physically active, non-smoking) the median MSC level was 4.6 nmol/L (range 1.9-23.0). Conclusions: In this study of patients with type 1 diabetes high MSC was linked to smoking, physical inactivity, depression, season and older age. Thus a high cortisol value identified three major targets for treatment in type 1 diabetes.
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| 8. |
- Thunander, Maria, et al.
(författare)
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Beta-cell function and metabolic control in Latent Autoimmune Diabetes in Adults with early insulin versus conventional treatment: a 3-year follow-up
- 2011
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Ingår i: European Journal of Endocrinology. - 1479-683X. ; 164:2, s. 239-245
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: The optimal treatment of latent autoimmune diabetes in adults (LADA) is not established. We explored whether early insulin treatment, which has shown beneficial effects in rodents and in human pilot studies, would result in better preservation of beta-cell function or metabolic control, compared with conventional treatment. Subjects and methods: Glucagon-stimulated C-peptide and HbAlc were evaluated at baseline and after 12, 24 and 36 months in 37 patients recently diagnosed with diabetes, aged >= 30 years, non-insulin-requiring and GADAb and/or ICA positive. Twenty patients received early insulin and 17 received conventional treatment (diet +/- oral hypoglycaemic agents (OHA), metformin, some and/or sulfonylurea) and insulin when necessary. Results: Level of metabolic control, HbAlc, was preserved in the early insulin treated, while it significantly deteriorated in the conventionally treated. There was no significant difference between the groups in C-peptide after 12, 24 or 36 months, or in the decline of C-peptide. Only baseline C-peptide predicted a C-peptide of >= 0.5 nmol/l at 36 months. Gender, body mass index, antibody titres or HbAlc did not influence the levels of C-peptide or HbAlc at baseline or end-of-study, or the decline in C-peptide. Among the diet +/- OHA-treated, 5/17 (30%) developed insulin dependency during the follow-up. No major hypoglycaemic events occurred. Conclusions: Early insulin treatment in LADA leads to better preservation of metabolic control and was safe. Superior preservation of C-peptide could not be significantly demonstrated. Only baseline level of C-peptide significantly influenced C-peptide level after 3 years. Further studies exploring the best treatment in LADA are warranted. European Journal of Endocrinology 164 239-245
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| 9. |
- Thunander, Maria
(författare)
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Diabetes mellitus in Adults - Aspects of Incidence, Autoimmunity and C-peptide
- 2011
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Type 1 and type 2 diabetes increase worldwide, leading to a heavy burden of disease and its complications. All 1666 adults aged 18-100 years with new onset diabetes in Kronoberg during 3 years were registered, and type of diabetes classified by pancreatic autoantibodies and C-peptide. Annual incidences of both type 1 and type 2 diabetes were higher than previously described (27.1/100 000 and 378/100 000). Type 1 incidence was bimodal with peaks in 0-19 and 50-80 years. Patients with latent auto-immune diabetes (LADA) were treated either with insulin or conventionally (diet ± oral hypoglycaemic agents). Beta cell function (glucagon-stimulated Cpeptide)and metabolic control (HbA1c) were followed for 36 months. LADA patients treated with insulin did not demonstrate better preservation of beta cell function but had a better metabolic control compared to those on conventional treatment. Adult type 1 patients with long duration (n=40)were examined for pancreatic antibodies, residual C-peptide, and other autoantibodies and complications, with focus on complications from the connective tissues. After 20-30 years duration of diabetes, 20% of type 1 patients had detectable pancreatic autoantibodies, 23% had still detectable C-peptide. Complications from the connective tissues were as common as retinopathy and increased with duration.
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| 10. |
- Thunander, Maria, et al.
(författare)
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Levels of C-peptide, body mass index and age, and their usefulness in classification of diabetes in relation to autoimmunity, in adults with newly diagnosed diabetes in Kronoberg, Sweden
- 2012
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Ingår i: European Journal of Endocrinology. - 1479-683X. ; 166:6, s. 1021-1029
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Tidskriftsartikel (refereegranskat)abstract
- Objective: C-peptide is a main outcome measure in treatment trials of diabetes. C-peptide also has a role in the classification of diabetes, which is often difficult in adults and this is also increasingly recognised in adolescents and elders. Aim: We aimed to describe the levels of C-peptide in relation to age and body mass index (BMI) in a large population-based cohort of adults with newly diagnosed diabetes and compare the capabilities of C-peptide, age and BMI to discriminate between autoimmune and non-autoimmune diabetes. Subjects and methods: Blood samples from 1180 patients were analysed regarding islet cell antibody, glutamic acid decarboxylase antibody and fasting C-peptide (FCP). Receiver operating characteristics (ROC) curves were analysed to check the ability of age, BMI and C-peptide to discriminate between autoantibody-positive (Ab(+)) and -negative (Ab(-)) diabetes. Results: Mean FCP was 0.73 +/- 0.5 (range 0.13-1.80) nmol/l in the Ab(+) and 1.42 +/- 0.9 (range 0.13-8.30) nmol/l in the Ab(-). FCP was 0.02 nmol/l higher per year increase in age at diagnosis of diabetes. Mean BMI was 26.0 +/- 4.8 (range 18.0-39.0) kg/m(2) in the Ab(+) and 28.9 +/- 5.3 (range 15.5-62.6) kg/m(2) in the Ab(-). FCP increased with age also within each BMI group. The highest area under the curve (AUC) in the ROC analysis was found for C-peptide, followed by age and BMI (0.78, 0.68 and 0.66 respectively). Conclusions: At diagnosis of diabetes, C-peptide was superior to age and BMI in discriminating between autoimmune and non-autoimmune diabetes. C-peptide increased significantly with BMI and age, latter also within each BMI group. Most of the adults had normal or high levels of C-peptide at presentation of diabetes among the autoimmune patients.
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