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Abstract
OBJECTIVE We aimed to determine the risk of hypercalcemia in a geriatric population with very high dose levels of 25-hydroxy-vitamin D (25(OH)D). PATIENTS AND METHOD This study was designed as a retrospective, cross-sectional two-center study for examining the elderly patients with very high 25(OH)D levels (>88ng/mL) between January 2014 and December 2019. After recruitment, subgroup analyses of the patients were performed based on their calcium and vitamin D levels. RESULTS A total of 81.101 elderly patients, who had been evaluated for their vitamin D levels, were screened. Of the 458 (0.6%) elderly patients with 25(OH)D>88 ng/mL according to our criteria, 217 patients with complete data were accepted into our study. The median 25(OH)D level was 103.7ng/mL (min-max:88.2-275.9). Most of the elderly patients (86.6%) with very high 25(OH)D levels were normocalcemic. When patients with hypercalcemia were compared with normocalcemic group, no difference was observed in the levels of 25(OH)D, intact parathormone (iPTH), phosphorus, alkaline phosphatase (ALP), and their age. However, the PTH suppression rate was significantly higher in hypercalcemic group (p=0.005). CONCLUSION The elderly patients with very high 25(OH)D levels would appear to be mostly normocalcemic whereas life-threatening hypercalcemia would also occur. Treatment and follow-up planning should be done according to the clinical guideline recommendations.
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Affiliation(s)
- A. Batman
- Koc University, Faculty of Medicine, Department of Endocrinology and Metabolism, Istanbul, Turkey
| | - Y. Altuntas
- Health Sciences University, Sisli Hamidiye Etfal Education and Research Hospital, Department of Endocrinology and Metabolism, Istanbul, Turkey
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Karaca Z, Yarman S, Ozbas I, Kadioglu P, Akturk M, Kilicli F, Dokmetas HS, Colak R, Atmaca H, Canturk Z, Altuntas Y, Ozbey N, Hatipoglu N, Tanriverdi F, Unluhizarci K, Kelestimur F. How does pregnancy affect the patients with pituitary adenomas: a study on 113 pregnancies from Turkey. J Endocrinol Invest 2018. [PMID: 28634705 DOI: 10.1007/s40618-017-0709-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Data regarding pregnancies in relation to pituitary tumors are limited. The effects of pregnancy on pituitary adenomas and the effects of adenoma itself (hormonal activity, mass effects and pituitary insufficiency) and/or treatment on the ongoing gestation and developing fetus were evaluated. METHODS The study was a retrospective study. A questionnaire involving questions regarding medical history before index gestation, history of related pregnancy, result of index gestation and postpartum follow-up of the patients was filled by the investigator in one of the eight Referral Endocrinology Centers from Turkey. RESULTS One hundred and thirteen (83 prolactinoma, 21 acromegaly, 8 NFPA and 1 plurihormonal pituitary adenoma) pregnancies of 87 (60 prolactinoma, 19 acromegaly, 7 NFPA and 1 plurihormonal pituitary adenoma) patients were reviewed. The clinically important pregnancy-related tumor growth of pituitary adenomas was found to be low in previously treated adenomas. Prolactinomas were more likely to increase in size during pregnancy especially if effective prior treatment was lacking. The risk of hypopituitarism is also minimal due to pituitary adenomas during pregnancy. The results of pregnancies did not differ in patients who were on medical treatment or not for prolactinomas and acromegaly during gestation. Neural tube defect and microcephaly associated with maternal cabergoline use; Down syndrome and corpus callosum agenesis associated with maternal bromocriptine use; unilateral congenital cataract, craniosynostosis and microcephaly associated with maternal acromegaly were detected for the first time. CONCLUSION Medical treatment can be safely done stopped in patients with prolactinoma and acromegaly when pregnancy is confirmed and reinstituted when necessary. Prospective studies may help to determine the effects of medical treatment during gestation on the mother and fetus.
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Affiliation(s)
- Z Karaca
- Department of Endocrinology, Erciyes University Medical School, 38039, Kayseri, Turkey
| | - S Yarman
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - I Ozbas
- Department of Endocrinology, İstanbul University Cerrahpaşa Medical School, Istanbul, Turkey
| | - P Kadioglu
- Department of Endocrinology, İstanbul University Cerrahpaşa Medical School, Istanbul, Turkey
| | - M Akturk
- Department of Endocrinology, Gazi University Medical School, Ankara, Turkey
| | - F Kilicli
- Department of Endocrinology, İstanbul Medipol University Medical School, Istanbul, Turkey
| | - H S Dokmetas
- Department of Endocrinology, İstanbul Medipol University Medical School, Istanbul, Turkey
| | - R Colak
- Department of Endocrinology, Ondokuz Mayis University Medical School, Samsun, Turkey
| | - H Atmaca
- Department of Endocrinology, Ondokuz Mayis University Medical School, Samsun, Turkey
| | - Z Canturk
- Department of Endocrinology, Kocaeli University Medical School, Kocaeli, Turkey
| | - Y Altuntas
- Department of Endocrinology, Şişli Hamidiye Etfal Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - N Ozbey
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - N Hatipoglu
- Department of Pediatric Endocrinology, Erciyes University Medical School, Kayseri, Turkey
| | - F Tanriverdi
- Department of Endocrinology, Erciyes University Medical School, 38039, Kayseri, Turkey
| | - K Unluhizarci
- Department of Endocrinology, Erciyes University Medical School, 38039, Kayseri, Turkey
| | - F Kelestimur
- Department of Endocrinology, Erciyes University Medical School, 38039, Kayseri, Turkey.
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Rosengren A, Teo K, Rangarajan S, Kabali C, Khumalo I, Kutty VR, Gupta R, Yusuf R, Iqbal R, Ismail N, Altuntas Y, Kelishadi R, Diaz R, Avezum A, Chifamba J, Zatonska K, Wei L, Liao X, Lopez-Jaramillo P, Yusufali A, Seron P, Lear SA, Yusuf S. Psychosocial factors and obesity in 17 high-, middle- and low-income countries: the Prospective Urban Rural Epidemiologic study. Int J Obes (Lond) 2015; 39:1217-23. [PMID: 25869608 PMCID: PMC4766924 DOI: 10.1038/ijo.2015.48] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 10/21/2014] [Accepted: 11/23/2014] [Indexed: 02/05/2023]
Abstract
Background/Objectives: Psychosocial stress has been proposed to contribute to obesity, particularly abdominal, or central obesity, through chronic activation of the neuroendocrine systems. However, these putative relationships are complex and dependent on country and cultural context. We investigated the association between psychosocial factors and general and abdominal obesity in the Prospective Urban Rural Epidemiologic study. Subjects/Methods: This observational, cross-sectional study enrolled 151 966 individuals aged 35–70 years from 628 urban and rural communities in 17 high-, middle- and low-income countries. Data were collected for 125 290 individuals regarding education, anthropometrics, hypertension/diabetes, tobacco/alcohol use, diet and psychosocial factors (self-perceived stress and depression). Results: After standardization for age, sex, country income and urban/rural location, the proportion with obesity (body mass index ⩾30 kg m−2) increased from 15.7% in 40 831 individuals with no stress to 20.5% in 7720 individuals with permanent stress, with corresponding proportions for ethnicity- and sex-specific central obesity of 48.6% and 53.5%, respectively (P<0.0001 for both). Associations between stress and hypertension/diabetes tended to be inverse. Estimating the total effect of permanent stress with age, sex, physical activity, education and region as confounders, no relationship between stress and obesity persisted (adjusted prevalence ratio (PR) for obesity 1.04 (95% confidence interval: 0.99–1.10)). There was no relationship between ethnicity- and sex-specific central obesity (adjusted PR 1.00 (0.97–1.02)). Stratification by region yielded inconsistent associations. Depression was weakly but independently linked to obesity (PR 1.08 (1.04–1.12)), and very marginally to abdominal obesity (PR 1.01 (1.00–1.03)). Conclusions: Although individuals with permanent stress tended to be slightly more obese, there was no overall independent effect and no evidence that abdominal obesity or its consequences (hypertension, diabetes) increased with higher levels of stress or depression. This study does not support a causal link between psychosocial factors and abdominal obesity.
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Affiliation(s)
- A Rosengren
- Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - K Teo
- Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada
| | - S Rangarajan
- Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada
| | - C Kabali
- Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada
| | - I Khumalo
- North-West University, Optentia Research Programme, Faculty of Humanities, Vanderbilpark, South Africa
| | - V R Kutty
- Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - R Gupta
- Fortis Escorts Hospital, JLN Marg, Jaipur, Rajasthan, India
| | - R Yusuf
- Independent University Bangladesh, Dhaka, Bangladesh
| | - R Iqbal
- Department of Community Health Sciences and Medicine, Aga Khan University, Karachi, Pakistan
| | - N Ismail
- Department of Community Health, Universiti Kebangsaan, Kuala Lumpur, Malaysia
| | - Y Altuntas
- SB Pediatric Endocrinology and Metabolism, Training and Research Hospital, Istanbul, Turkey
| | - R Kelishadi
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - R Diaz
- Estudios Clinicos Latinoamerica ECLA, Rosario, Santa Fe, Argentina
| | - A Avezum
- Dante Pazzanese Institute of cardiology, Sao Paulo, Brazil
| | - J Chifamba
- Physiology Department, University of Zimbabwe, College of Health Sciences, Harare, Zimbabwe
| | - K Zatonska
- Department of Social Medicine, Medical University of Wrocław, Wrocław, Poland
| | - L Wei
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Liao
- Sichuan University West China Hospital, Chengdu, Sichuan Province, China
| | - P Lopez-Jaramillo
- Fundacion Oftalmologica de Santander (FOSCAL) and Medical School, Universidad de Santander (UDES), Santander, Colombia
| | | | - P Seron
- Universidad de La Frontera, Temuco, Chile
| | - S A Lear
- Faculty of Health Sciences, Simon Fraser University and Division of Cardiology, Providence Health Care, Vancouver, BC, Canada
| | - S Yusuf
- Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada
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Kanat M, Goksugur SB, Ozlu T, Tunckale A, Ozturk B, Ozturk FY, Altuntas Y, Suleymanoglu Y, Atmaca H, Yolcu N, Gonenc I, Delibasi T, Zuhur S, Dikbas O, Aktas G, Karagoz Y, Abdul-Ghani MA. The effect of feto-maternal blood type incompatibility on development of gestational diabetes mellitus. Clin Ter 2014; 165:e145-7. [PMID: 24770823 DOI: 10.7471/ct.2014.1698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To assess the relation between fetal and maternal blood type (ABO, Rh) incompatibility and development of gestational diabetes mellitus (GDM). MATERIALS AND METHODS A total of 500 pregnant women underwent diagnostic test for GDM by a 100-g oral glucose tolerance test (OGTT) after an 8 to 12-h overnight fast participated in this study. OGTT was performed between the 24-28 weeks of gestation, but participants who were at high risk for GDM were tested after the first prenatal visit. In the postpartum period, maternal and infant blood types were determined. Presence of GDM was evaluated in terms of matched and unmatched fetal and maternal ABO and Rh blood types separately. RESULTS GDM was detected in 235 participants. Unmatched ABO blood types between the mother-infant pairs were present in 44.7% (n=105) of GDM (+) and 35.8 % (n=95) of GDM (-) patients. Incompatible feto-maternal ABO blood type was positively correlated with development of GDM which was marginally significant. (p=0.045; R=1.2;95% CL; 1.004-1.48). However, Rh feto-maternal blood type incompatibility was not related with development of GDM. CONCLUSIONS Feto-maternal ABO blood type incompatibility may be a weak risk factor for the development of GDM.
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Affiliation(s)
- M Kanat
- Departments of Internal Medicine, Istanbul Medipol University, Istanbul
| | - S B Goksugur
- Departments of Pediatrics, Izzet Baysal Women's and Children's Hospital, Bolu
| | - T Ozlu
- Departments of Obstetrics and Gynecology, Medical School, University of Abant Izzet Baysal, Bol
| | - A Tunckale
- Departments of Internal Medicine, Cerrahpasa Medical School, University of Istanbul, Istanbul
| | - B Ozturk
- Departments of Endocrinology and Metabolism, University of Ege, Izmir
| | - F Y Ozturk
- Departments of Endocrinology and Metabolism, Sisli Etfal Training and Research Hospital, Istanbul
| | - Y Altuntas
- Departments of Endocrinology and Metabolism, Sisli Etfal Training and Research Hospital, Istanbul
| | - Y Suleymanoglu
- Departments of Internal Medicine, University of Acibadem, Istanbul
| | - H Atmaca
- Departments of Endocrinology and Metabolism, University of Ondokuz Mayıs, Samsun
| | - N Yolcu
- Departments of Endocrinology and Metabolism, Haydarpasa Training and Research Hospital, Istanbul
| | - I Gonenc
- Departments of Endocrinology and Metabolism, Haydarpasa Training and Research Hospital, Istanbul
| | - T Delibasi
- Departments of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara
| | - S Zuhur
- Departments of Endocrinology and Metabolism, Sisli Etfal Training and Research Hospital, Istanbul
| | - O Dikbas
- Departments of 1Internal Medicine, Istanbul Medipol University, Istanbul
| | - G Aktas
- Departments of 1Internal Medicine, Istanbul Medipol University, Istanbul
| | - Y Karagoz
- Faculty of Economics and Administrative Sciences, University of Abant Izzet Baysal, Bolu
| | - M A Abdul-Ghani
- Division of Diabetes, University of Texas Health Science Center at San Antonio, Texas, USA
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Abdul-Ghani MA, Williams K, Kanat M, Altuntas Y, DeFronzo RA. Insulin vs GLP-1 analogues in poorly controlled Type 2 diabetic subjects on oral therapy: a meta-analysis. J Endocrinol Invest 2013; 36:168-73. [PMID: 22522662 DOI: 10.3275/8367] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
AIM To compare insulin and GLP-1 analogues therapy on glycemic control in poorly controlled Type 2 diabetes (T2DM) subjects failing on oral therapy. METHODS The electronic database PubMed was systematically searched for randomized controlled trial (RCT) with duration >16 weeks comparing the addition of insulin therapy vs glucagon-like peptide (GLP-1) analogues in poorly controlled T2DM subjects on oral therapy. RESULTS We identified 7 RCT with 2199 patients of whom 1119 were assigned to insulin therapy and 1080 received a GLP-1 analogue. Both insulin and GLP-1 analogues were effective in lowering glycated hemoglobin (HbA(1c)) with no statistically significant difference between the mean decreases in HbA(1c). However, insulin was more effective than GLP-1 analogues in lowering the fasting plasma glucose concentration, while GLP-1 agonists were more effective in lowering the postprandial glucose concentration. Insulin therapy was associated with weight gain while GLP-1 analogues consistently caused weight loss and the difference between the mean change in body weight between the two therapies was highly statistically significant. Despite a similar decrease in HbA(1c), the risk of hypoglycemia was 35% lower (p=0.001) with GLP-1 therapy compared to insulin. Compared to insulin, GLP-1 analogues caused a significant decrease in systolic blood pressure and were associated with greater rate of gastrointestinal adverse events. CONCLUSION/INTERPRETATION In poorly controlled T2DM subjects on oral therapy, GLP-1 analogues and insulin are equally effective in lowering the HbA(1c). However, GLP-1 analogues have additional non-glycemic benefits and lower risk of hypoglycemia. Thus, GLP-1 analogues should be considered as a treatment option in this group of diabetic individuals.
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Affiliation(s)
- M A Abdul-Ghani
- Division of Diabetes, University of Texas Health Science Center at San Antonio, TX, USA
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Doğan MH, Karadag B, Ozyigit T, Kayaoglu S, Ozturk AO, Altuntas Y. Correlations between sarcopenia and hypertensive target organ damage in a Turkish cohort. Acta Clin Belg 2013. [PMID: 23189539 DOI: 10.2143/acb.67.5.2062685] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
AIMS To investigate a possible correlation between skeletal muscle mass and hypertensive target organ damage. MATERIALS AND METHODS A total of 365 hypertensive patients aged > 18 years were included (221 females; 144 males). Exclusion criteria were: diabetes; hypo- or hyperthyroidism; immobilisation; leg amputation; dehydration; cancer diagnosis; renal insufficiency with GFR of <60 ml/ dk/1.73 m2; and hormone replacement therapy. All patients who participated in the study were examined for the presence of hypertensive retinopathy and nephropathy and divided into four groups according to age and sex (group 1 = females aged <60 years; group 2 = females aged >60 years; group 3 = males aged <60 years; and group 4 = males aged > 60 years). The diagnosis of hypertensive nephropathy and retinopathy was based on spot urine microalbuminuria/creatinine ratio and opthalmoscopy, examination respectively. Body composition was evaluated using bioimpedance analysis (BIA). Fullbody skeletal muscle mass (SMM) and SMM index (SMMI) were used as indicators of skeletal muscle mass. RESULTS As expected, female and elderly subjects showed a decreased skeletal muscle mass and increased fat mass compared to males and younger subjects. In the overall cohort, a negative correlation was found between skeletal muscle mass and both hypertensive retinopathy and nephropathy. Subgroup analysis revealed a linear correlation between increased SMM and a decreased risk of hypertensive retinopathy. Patients with a spot urine microalbuminura/creatinine ratio of > or = 30 had a lower SMM and a lower SMMI than patients with a ratio of <30. CONCLUSION In the present cohort, sarcopenia mainly due to aging was associated with an increased rate of hypertensive target organ damage in the form of hypertensive retinopathy and nephropathy
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Affiliation(s)
- M H Doğan
- Sisli Etfal Teaching and Research Hospital, Department of Internal Medicine/Endocrinology and Metabolism, Sisli, Istanbul, Turkey
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Fenercioglu AK, Saler T, Genc E, Sabuncu H, Altuntas Y. The effects of polyphenol-containing antioxidants on oxidative stress and lipid peroxidation in Type 2 diabetes mellitus without complications. J Endocrinol Invest 2010; 33:118-24. [PMID: 19834314 DOI: 10.1007/bf03346565] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND The hyperglycemia-induced oxidative stress in diabetes mellitus (DM) is the major factor in the pathogenesis of cardiovascular complications. The phenolic compounds are potent antioxidants that can reverse the factors leading to cardiovascular complications in DM. The aim of this study was to determine the antagonizing effects of a polyphenol-rich antioxidant supplement containing pomegranate extract, green tea extract, and ascorbic acid, on oxidative stress in Type 2 diabetic patients. MATERIALS AND METHODS A total of 114 male and female non-smokers (56 study, 58 placebo) with Type 2 DM and without any complications were recruited. The blood levels of fasting blood glucose, glycated hemoglobin, LDL, HDL, triglycerides, plasma malondialdehyde (MDA), total glutathione (GSH), hydrogen peroxide, and antioxidant capacity (AOC) were determined at the beginning and at the end of the 3-month trial. The differences of the data changes between the groups were statistically analyzed by Mann-Whitney U test. RESULTS The study group showed a decrease in LDL and an increase in HDL and the comparison with the difference in placebo group was statistically significant (p<0.001 for LDL and p<0.001 for HDL). Accordingly, as a by-product of lipid peroxidation, plasma MDA was decreased in the study group compared to the placebo group (p<0.001). As an indicator of increased antioxidant defense, total plasma GSH and AOC increased more in the study group compared to control group (p<0.001). CONCLUSIONS These observations indicated that the polyphenol-rich antioxidant supplement containing pomegranate extract, green tea extract, and ascorbic acid has important antagonizing effects on oxidative stress and lipid peroxidation in patients with Type 2 DM and might be beneficial in preventing cardiovascular complications.
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Affiliation(s)
- A Kutan Fenercioglu
- Department of Family Medicine, Yeditepe University Medical Faculty, Istanbul, Turkey.
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Kanat M, Serin E, Tunckale A, Yildiz O, Sahin S, Bolayirli M, Arinc H, Dirican A, Karagoz Y, Altuntas Y, Celebi H, Oguz A. A multi-center, open label, crossover designed prospective study evaluating the effects of lipid lowering treatment on steroid synthesis in patients with Type 2 diabetes (MODEST Study). J Endocrinol Invest 2009; 32:852-6. [PMID: 19783896 DOI: 10.1007/bf03345757] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVE It has been suggested that lipid-lowering treatment with the use of statins adversely affects the steroid hormones. However, the safety of lipid lowering treatment targeting very low levels of LDL with respect to the steroid hormones has not been established. RESEARCH DESIGN AND METHODS A prospective, randomized, multicenter trial was conducted involving 98 patients. The patients were randomized into 2 groups: group-I received 10 mg of atorvastatin plus 10 mg of ezetimibe and group-II 80 mg of atorvastatin for the first 3 months. After crossover, the first group received 80 mg of atorvastatin and the second group 10 mg of atorvastatin plus 10 mg of ezetimibe for the following 3 months. Cortisol, DHEAS, testosterone, and estradiol levels were measured at the enrollment and at the end of the 1st, 2nd, 3rd, and 6th months. RESULTS Along with a decrease in LDL level, the levels of DHEAS, testosterone, and estradiol decreased in both groups (p<0.001). While cortisol levels were maintained in the group given 10 mg of atorvastatin plus 10 mg of ezetimibe, it decreased significantly after the crossover to 80 mg of atorvastatin (p<0.001). The group initially given 80 mg of atorvastatin measured a lower level of cortisol for the first 3 months and it returned to normal levels after switching to 10 mg of atorvastatin plus 10 mg of ezetimibe. CONCLUSION Eighty milligrams of atorvastatin decreased all adrenal and gonadal steroids, whereas 10 mg of ezetimibe combined with 10 mg of atorvastatin had at least no impact on cortisol levels.
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Affiliation(s)
- M Kanat
- Department of Internal Medicine, Izzet Baysal Medical School, Abant Izzet Baysal University, TR14280-Golkoy, Bolu, Turkey.
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Ucak S, Ekmekci TR, Basat O, Koslu A, Altuntas Y. Comparison of various insulin sensitivity indices in psoriatic patients and their relationship with type of psoriasis. J Eur Acad Dermatol Venereol 2006; 20:517-22. [PMID: 16684277 DOI: 10.1111/j.1468-3083.2006.01499.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AIM We aimed to identify insulin resistance and its possible association with types, duration and severity of psoriasis, and to evaluate various simple insulin-sensitivity indices and beta-cell function in psoriasis. METHODS A cross-sectional study was performed in 110 non-obese adults (18-50 years old): 70 with psoriasis (53 type I, 17 type II psoriasis) and 40 healthy individuals. Blood glucose, insulin and C-peptide levels were measured. Oral glucose tolerance test (OGTT); insulin sensitivity and beta-cell function indices derived from a single sample and OGTT were determined and compared in three groups. RESULTS Total, type I and type II psoriatics had IGT rates of 18.6%, 13.2% and 40%, respectively. In the control group IGT was only 2.5%. Homeostasis Model Assessment (HOMA) beta cell index, fasting insulin, Raynaud index, HOMA-IR and FIRI results were higher in total, type I and type II psoriatics than in controls (P < 0.05, for all). Fasting Belfiore index, QUICKY index, ISI HOMA and FIRI(-1) results were lower in total, type I and type II psoriatics than in controls (P < 0.05, for all), and type I psoriatics had higher levels of these indices than type II psoriatics (P < 0.05, for all). CONCLUSION Our study showed that psoriatic patients were more insulin resistant than healthy subjects and type II psoriatics were more susceptible than type I psoriatics to develop IGT. We suggest that beta-cell function and insulin sensitivity indices are useful methods for measuring insulin resistance in psoriatics. We propose that OGTT should be applied especially in type II psoriatics because of increased rate of IGT in this group.
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Affiliation(s)
- S Ucak
- Department of Diabetes Endocrinology Metabolism, Sisli Etfal Research and Training Hospital, Istanbul, Turkey
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Basat O, Ucak S, Ozkurt H, Basak M, Seber S, Altuntas Y. Visceral adipose tissue as an indicator of insulin resistance in nonobese patients with new onset type 2 diabetes mellitus. Exp Clin Endocrinol Diabetes 2006; 114:58-62. [PMID: 16570234 DOI: 10.1055/s-2006-923886] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND Obesity and type 2 diabetes mellitus are characterized by insulin resistance. We determined the relationship between insulin resistance and visceral adipose tissue (VAT) and their correlation with bioimpedance analysis in nonobese new onset type 2 diabetes patients. METHODS A number of 30 new onset type 2 diabetes patients and 20 healthy control subjects with similar features, age between 45 - 72 years old, BMI < 27 kg/m (2), C-peptide > 0.6 nmol/L, were included in study. Fasting blood glucose, HbA1c, serum lipids, BMI, insulin, C-peptide, HOMA-IR, bioimpedance analysis and visceral and subcutaneous adipose tissue (by computed tomography) were measured. RESULTS In the patient group, VAT was significantly higher compared to healthy control group (33.17 +/- 10.23 % vs. 16.53 +/- 7.85 %, p < 0.001). In the patient group VAT was correlated with HOMA-IR (r = 0.62, p = 0.003), but no significant correlation was observed between VAT and bioimpedance analysis. CONCLUSIONS The amount of VAT is significantly higher in nonobese new onset patients with type 2 diabetes than the healthy control group. In these patients, VAT measured by CT is an important indicator of insulin resistance. Although bioimpedance analysis can give an idea about total body fat and obesity, it is not sufficient in evaluating fat distribution and therefore is not effective in predicting insulin resistance.
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Affiliation(s)
- O Basat
- Sisli Etfal Research and Training Hospital, Department of Internal Medicine, Division of Diabetes and Endocrinology, Istanbul, Turkey.
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Bicer Y, Yapici N, Altuntas Y, Izgi F, Aydin O, Aykac Z. Crit Care 2005; 9:P375. [DOI: 10.1186/cc3438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
Extramedullary plasmacytomas (EMPs) are localized plasma cell neoplasms that occur within the soft tissues; by definition they cannot occur within bone. They account for 1-2% of all plasma cell growths and have a great predilection for the upper respiratory tract, without specific manifestations. Males are more frequently affected during the fifth and sixth decades of life. At initial presentation, multiple myeloma should be excluded. We report herein the case of a 63-year-old man with an EMP arising in the right maxillary sinus who was referred for surgical excision and postoperative radiotherapy and briefly review the clinical implications and management of this pathology.
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Affiliation(s)
- O Ersoy
- Department of Internal Medicine, Sisli Etfal Education and Research Hospital, Istanbul, Turkey.
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14
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Altuntas Y, Ozen B, Ozturk B, Sengul A, Ucak S, Ersoy O, Karul S. Comparison of additional metformin or NPH insulin to mealtime insulin lispro therapy with mealtime human insulin therapy in secondary OAD failure. Diabetes Obes Metab 2003; 5:371-8. [PMID: 14617222 DOI: 10.1046/j.1463-1326.2003.00283.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM It has been found that non-fasting plasma glucose is a better marker of diabetic control than fasting plasma glucose in type 2 diabetes. The main aim of treatment of type 2 diabetic patients is to control plasma glucose and HbA1c levels. In this study, we aimed to assess the effects of three different insulin regimens (group I: lispro insulin + NPH insulin, group II: lispro insulin + metformin and group III: regular insulin + NPH insulin) on overall glycaemic control and metabolic parameters in type 2 diabetic patients with secondary oral anti-diabetic drug failure. METHODS Sixty type 2 diabetic patients with secondary OAD failure were randomly allocated into three different treatment groups equally. There were no significant differences between groups concerning age, body mass index, diabetes duration, HbA1c and serum lipid levels at the beginning of the study. During the 6-month treatment period, blood glucose levels were determined 10 times during 24 h at pre-meal, post-prandial 1 and 2 h and at bedtime. RESULTS Group I was found to be the most effective treatment regimen in controlling HbA1c levels (group I vs. group II, p = 0.013; group I vs. group III, p = 0.001; group II vs. group III, p > 0.05). When the comparison was made in each group, change in HbA1c was statistically significant for all groups (-3.18%, p = 0.001; -2.02%, p = 0.043 and -2.66%, p = 0.008 respectively). Group I was found to be more effective in controlling fasting and post-prandial plasma glucose levels measured at all times during the day when compared with group II and group III. In group II triglyceride levels were found to be significantly reduced, whereas other groups had no effect on lipids. No serious hypoglycaemic episodes were observed in any of the cases, whereas in group I hypoglycaemic episode rates were increased (chi2 = 8.843, p = 0.012). CONCLUSIONS Lispro insulin plus NPH insulin regimen is more effective in controlling both pre- and post-prandial glucose levels and HbA1c when compared to regular insulin plus NPH insulin combination. Mealtime lispro insulin plus metformin combination therapy should also be seriously considered as an effective and alternative treatment regimen. It is worthy of attention that insulin lispro plus metformin lowered triglyceride levels.
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Affiliation(s)
- Y Altuntas
- Department of Endocrinology and Diabetes, Internal Medicine Clinic, Sisli Etfal Education and Research Hospital, Istanbul, Turkey.
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15
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Altuntas Y. A mathematical model for pattern of change in beta-cell reserve and factors affecting residual reserve within the first 2 years of type 1 diabetes. J Endocrinol Invest 2002; 25:987-92. [PMID: 12553560 DOI: 10.1007/bf03344073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of this study was to investigate the effects of age, duration of diabetes, sex and ICA (Islet cell cytoplasmic antibody) on beta-cell reserves and to develop a model within the first 2 years of Type 1 diabetes. Beta-cell reserve is evaluated as fasting (FCp) and 1 mg i.v. glucagon stimulated C-peptide (SCp) levels in 58 Type 1 diabetics and in 12 normoglycemic subjects. Patients were divided into 3 groups according to duration of diabetes: Group I (2.5+/-0.3 weeks), Group II (13.4+/-1.2 months) and Group III (24.2+/-1.8 months). FCp/SCp level in nmol/l (mean+/-SE) were as follows. Group I: 0.21+/-0.02/0.38+/-0.04, Group II: 0.15+/-0.01/0.27+/-0.02, Group III: 0.07+/-0.01/0.11+/-0.02, CONTROL GROUP: 0.42+/-0.09/1.29+/-0.13. The scatter plots of C-peptide levels vs time in all the diabetic patients fitted in to a 4th-order polynomial regression (R: 0.96-0.98). Age was strongly correlated with FCp (rs: 0.46, p<0.05) and ICA positivity affected Cp-levels negatively (p>0.05). In conclusion, as the duration of diabetes increases, response time to glucagon prolongs and amplitude of it shortens. Duration of diabetes of less than 2 weeks, feminity, puberty and ICA positivity affect beta-cell reserve negatively, conversely, masculinity, post-puberty, older age and ICA negativity affect the reserve positively. The dynamics of C-peptide response to glucagon follow a mathematical model and Type 1 diabetes causes a decrease not only in the amplitude of the response but also in the duration of the response.
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Affiliation(s)
- Y Altuntas
- Division of Endocrinology and Metabolism, Clinic of Internal Medicine, Sisli Etfal Education and Research Hospital, Istanbul, Turkey.
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