فهرست مطالب

International Journal of Endocrinology and Metabolism
Volume:12 Issue: 4, Sep 2014

  • تاریخ انتشار: 1393/09/27
  • تعداد عناوین: 7
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  • Joana Couto *, Raquel G. Martins, Ana Paula Santos, Joana Matos, Isabel Torres Page 1
    Introduction
    Thyroid angiosarcoma is a malignant neoplasm, which usually shows local aggressive behavior and associated with a high recurrence rate. It was originally described in the Alpine region and extremely rare in other parts of the world..
    Case Presentation
    An asymptomatic 61-year-old woman presented with a right lobe thyroid nodule with fine needle aspiration cytology indicating “suspicious for malignancy” was reported in our study. Histological examination revealed a vascular 35mm neoplasm with areas of necrosis. Immunohistochemistry staining had negative results for MNF, CAM5.2, CD34, thyroglobulin, and positive for CD31. The findings described were compatible with angiosarcoma diagnosis. Besides, a 4mm papillary microcarcinoma was found in the left lobe. Computerized tomography (CT) scan performed about two months after the operation, showed a right neck nodular lesion, conditioning tracheal deviation. At our institution, the study performed was consistent with local recurrence (angiosarcoma). Tumor excision was performed and invasion to larynx, trachea and esophagus was detected intraoperatively. Histopathologic examination confirmed tumor recurrence and the patient was submitted to radiotherapy (60 Gy), completed four years ago. There is not, so far, any evidence of tumor recurrence..
    Conclusions
    We described a rare case of a usually aggressive thyroid angiosarcoma in a patient living in a non-Alpine region, with an unusual favorable outcome after the operation and radiotherapy..
    Keywords: Angiosarcoma, Thyroid, Neoplasia
  • Kathleen De Waele, Martine Cools, Ann De Guchtenaere, Johan Van De Walle, Ann Raes, Sara Van Aken, Kris De Coen, Piet Vanhaesebrouck, Jean De Schepper * Page 2
    Introduction
    In neonates and small infants, early diagnosis of central diabetes insipidus (CDI) and treatment with desmopressin in low doses (avoiding severe hypo- or hypernatremia) are important to prevent associated high morbidity and mortality in this particular age group.. Case Presentetion: We described pharmacokinetic and pharmacodynamic results of the use of recently launched oral desmopressin lyophilisate (Minirin Melt®) in two infants with CDI, diagnosed at the age of 12 and 62 days, respectively. We observed that a starting dose of 60 μg of Minirin Melt® in the first case resulted in a pharmacokinetic profile largely exceeding the reference frame observed in children with nocturnal enuresis, while a dose of 15 μg in the second case resulted in acceptable concentrations. After initial dose adjustments, administration of sublingual lyophilisate resulted in rather stable serum sodium concentrations..
    Conclusions
    Using Minirin Melt® in infants with CDI appears to be effective, easy to use and well tolerated..:
    Keywords: Desmopressin, Diabetes Insipidus, Infant, Hypernatremia
  • Alireza Hamidian Jahromi, Mohammad Kazem Fallahzadeh, Amol Takalkar, Jean Sheng, Gazi Zibari, Hosein Shokouh Amiri * Page 3
    Background
    High fasting plasma glucose (FPG) levels before fluorodeoxyglucose (FDG) administration for positron emission tomography/computed tomography (PET/CT) might affect the accuracy of 18-fluoro-deoxy-glucose-positron emission tomography-computed tomography (FDG-PET/CT) in diagnosis of pancreatic lesions. Current guidelines require FPG levels of < 200 mg/dL before FDG administration; however, the literature on the effect of FPG levels of < 200 mg/dL on the accuracy of FDG-PET/CT is scarce..
    Objectives
    The aim of this study was to evaluate the effect of FPG levels of < 200 mg/dL on the accuracy of FDG-PET/CT in diagnosis of pancreatic lesions..Patients and
    Methods
    In this retrospective study, 161 patients who had FDG-PET/CT for initial diagnosis of pancreatic lesions were included. Fasting plasma glucose levels before FDG administration were recorded. Accuracy of FDG-PET/CT in diagnosis of pancreatic lesions was compared between patients who were non diabetic (FPG < 126 mg/dL) and hyperglycemic (126 ≤ FPG < 200 mg/dL)..
    Results
    Thirty-four patients were hyperglycemic and 127 non diabetic. Sensitivity, specificity, positive predictive value and negative predictive value of FDG-PET/CT were 90%, 88%, 87% and 91% in non diabetic and 82%, 92%, 95% and 73% in hyperglycemic patients, respectively. Overall, the accuracy was higher in non diabetic than hyperglycemic patients (89% vs. 85%)..
    Conclusions
    Accuracy of FDG-PET/CT for primary diagnosis of pancreatic lesions is higher in patients with FPG levels < 126 mg/dL than in patients with FPG levels between 126 and 200 mg/dL..
    Keywords: Cancer, Diagnosis, Glucose, Pancreas, Positron Emission Tomography
  • Bercem Aycicek Dogan *, Ayse Arduc, Mazhar Muslum Tuna, Ersen Karakilic, Iffet Dagdelen, Yasemin Tutuncu, Dilek Berker, Serdar Guler Page 4
    Background
    Mean platelet volume (MPV) is generally accepted as a new marker of cardiovascular disease risk in several studies..
    Objectives
    This study aimed to determine the association of MPV with androgen hormones and insulin resistance (IR) in nonobese patients with polycystic ovary syndrome (PCOS)..Patients and
    Methods
    A total of 136 patients with newly diagnosed reproductive-age PCOS (regarding the criteria of new PCOS phenotypes, based on the Rotterdam criteria) who were nonobese with the mean age of 25 years (25.39 ± 5.51) and mean body mass index (BMI) of 21 kg/m2 (22.07 ± 2.13) were included. In addition, 59 healthy subjects with mean age of 26 years (22.07 ± 2.13) and mean BMI of 22 kg/m2 (21.52 ± 3.84) were recruited as control. Total blood count (including MPV), total testosterone, free testosterone, dehydroepiandrosterone-sulfate (DHEAS), and androstenedione levels were recorded. IR was calculated from blood chemistry measurements of fasting insulin and glucose according to updated homeostasis model assessment..
    Results
    No differences were observed in mean MPV values between patients and control group (9.02 fL (8.5-10.1) and 8.9 fL (7.7-9.1), respectively; P = 0.777). MPV values were similar among nonobese patients with and without IR and control subjects (P > 0.05). We detected significantly lower values of MPV in patients with hyperandrogenemia in comparison to patients with normal androgen levels (8.7 and 9.5 fL, P = 0.012). There was a negative correlation between total testosterone, DHEAS, and MPV (P = 0.016, r = -0.229; and P = 0.006, r = -0.261, respectively). Multiple logistic regression analyses confirmed the independence of these associations..
    Conclusions
    Our study revealed that nonobese women with and without PCOS have similar MPV values. While IR does not have any effect on MPV, elevated androgen levels are associated with a low MPV in nonobese patients with PCOS..
    Keywords: Androgen Hormones, Mean Platelet Volume, Polycystic Ovary Syndrome
  • Zeinab Ghorbani, Azita Hekmatdoost, Parvin Mirmiran * Page 5
    Context: Turmeric is obtained from the plant Curcuma longa L; its major constituent, curcumin, is a polyphenol with multiple effects which can modulate some signaling pathways..Evidence Acquisition: Insulin resistance is a major risk factor for chronic diseases such as type 2 diabetes, atherosclerotic, metabolic syndrome and cardiovascular disease. In addition, Insulin resistance in peripheral tissue is one of the most important reasons of hyperglycemia which can cause global or systemic effects. The present study reviewed studies published in PubMed from 1998 to 2013, indicating the role of curcumin in attenuation of many pathophysiological processes involved in development and progression of hyperglycemia and insulin resistance..
    Results
    Curcumin can reduce blood glucose level by reducing the hepatic glucose production, suppression of hyperglycemia-induced inflammatory state, stimulation of glucose uptake by up-regulation of GLUT4, GLUT2 and GLUT3 genes expressions, activation of AMP kinase, promoting the PPAR ligand-binding activity, stimulation of insulin secretion from pancreatic tissues, improvement in pancreatic cell function, and reduction of insulin resistance..
    Conclusions
    Curcumin has antihyperglycemic and insulin sensitizer effects. Thereby, more studies evaluating the effects of curcumin on hyperglycemic state and insulin resistance in related disorders such as diabetes are recommended..
    Keywords: Turmeric, Curcumin, Curcuminoids, Curcuma longa, Hyperglycemia, Blood Glucose, Insulin Resistance, Hyperinsulinemia
  • Somayeh Hosseinpour-Niazi, Parvin Mirmiran, Farhad Hosseinpanah, Arefeh Fallah-Ghohroudy, Fereidoun Azizi * Page 6
    Background
    Most existing reports indicate that body weight gradually increases following marital status and thereby enhances health status and decreases mortality; however, the association between marital status and the metabolic syndrome (MetS) has not been thoroughly investigated in a longitudinal study..
    Objectives
    The aim of this study was to investigate the potential effects of marital status and marital transition on MetS during a 9.6-year follow-up in Tehran Lipid and Glucose Study..Patients and
    Methods
    For this study, 5221 participants (2060 males and 3161 females), aged 15 to 90 years at baseline, were followed for a median of 9.6 years. Marital status was categorized as consistent marital status and marital transition. We measured MetS risk z score and its components and calculated their changes. Then the effects of marital status and marital transition on MetS risk z score and its components were assessed using multivariable linear regression..
    Results
    In comparison to participants who were married, no significant changes in MetS risk z score was found in single participants. Employed females in the transition to married group had significant increase in MetS risk z score than single employed females. No significant changes in MetS risk z score were observed between widowed/divorced subjects and compared to consistently married subjects..
    Conclusions
    Marital status may affect MetS risk z score differently in both genders..
    Keywords: Marital Status, Metabolic Syndrome X, Marital Transition
  • Forough Saki, Mohammad Hossein Dabbaghmanesh *, Seyede Zahra Ghaemi, Sedighe Forouhari, Gholamhossein Ranjbar Omrani, Marzieh Bakhshayeshkaram * Page 7
    Background
    Maternal thyroid function alters during pregnancy. Inadequate adaptation to these changes results in thyroid dysfunction and pregnancy complications..
    Objectives
    This prospective study aimed to evaluate the prevalence of thyroid diseases in pregnancy and its outcomes in south of Iran..
    Materials And Methods
    This prospective study was conducted on 600 healthy singleton pregnant women who aged 18 to 35 years old at 15 to 28 weeks of gestation. We investigated the prevalence of thyroid dysfunctions in women. Multivariate analysis was performed to determine the effect thyroid dysfunction on obstetric and neonatal outcome..
    Results
    Thyroid stimulating hormone (TSH) levels of 0.51, 1.18, 1.68, 2.4, and 4.9 mIU/L were at 2.5th, 25th, 50th, 75th, and 97.5th percentile in our population. The prevalence of clinical hypothyroidism, subclinical hypothyroidism, overt hyperthyroidism, and subclinical hyperthyroidism in all pregnant women was 2.4%, 11.3%, 1.2%, and 0.3%, respectively. In addition, 1.4% of patients had isolated hypothyroxinemia. Clinical hypothyroidism was associated with increased risk of preterm delivery (P = 0.045). Subclinical hypothyroidism had a significant association with intrauterine growth restriction (IUGR) (P = 0.028) as well as low Apgar score at first minute (P = 0.022). Maternal hyperthyroidism was associated with IUGR (P = 0.048)..
    Conclusions
    We revealed that thyroid dysfunction during pregnancy was associated with IUGR and low Apgar score even in subclinical forms. Further studies are required to determine whether early diagnosis and treatment of thyroid diseases, even in subclinical form, can prevent their adverse effect on fetus..
    Keywords: UGR, Fetal Growth Retardation, Thyroid Dysfunction, Thyroid Disease