Endocrine Abstracts

Introduction: Recent reports showed that 2–9.4% of diabetic patients have Cushing’s syndrome (CS) including its mild form, subclinical CS (subCS), but there is no report about screening of acromegaly in diabetic patients. Either 1-mg or 0.5-mg dexamethasone suppression test (DST) is used as the screening test of adrenal CS or Cushing’s disease (CD). The aim of the present study was to screen CS including CD and acromegaly in Japanese diabetic patients.<p cla...

Introduction: There were some studies on the relation between subclinical hypothyroidism and arteriosclerosis, but few studies between thyroid function and diabetic microangiopathy. This study was aimed at investigating the influence of subclinical hypothyroidism on diabetic complications in Japanese population.Description of methods/design: We retrospectively surveyed a total of 106 type 2 diabetic patients with regard to thyroid function and microvascu...

Insulinoma causes fasting hypoglycemia due to inappropriate insulin secretion. The diagnosis of insulinoma is based on Whipple’s triad (1. symptoms precipitated by fasting with 2. associated blood sugars of 50 mg/dl or less and 3. relief of symptoms by glucose administration) during a supervised 72 h fasting test. After introducing reliable assays for measurement of insulin and proinsulin, there is an ongoing debate whether a 48 h fasting test is sufficient for diagnosis ...

Background: The H-syndrome is a recently described very rare monogenic systemic autoinflammatory autosomal-recessive genodermatosis with young onset of diabetes without evidence of autoimmunity. It is caused by mutations in the SLC29A3 gene, which encodes the equilibrative nucleoside transporter hENT3.Objectives: To study the clinical features and confirm the genetic diagnosis in a subject with young onset of diabetes.Subject and m...

Introduction: Osteotropic hormones demonstrate circadian rhythms which are integral to bone homeostasis. Sclerostin is a physiological inhibitor of bone formation. We have established that Sclerostin has a distinct circadian rhythm with a nocturnal peak. Analysis was performed to determine the relationship of Sclerostin levels to PTH, Calcium, Phosphate, βCTX and P1NP in healthy young men.Methods: Six healthy young men with normal BMD were admitted ...

Kit ligand (KL)-c-kit interaction is critical for oogenesis and folliculogenesis in the ovary. However, the significance of KL-c-kit loop in ovarian steroidogenesis has yet to be elucidated. We here investigated the impact of KL-c-kit interaction in regulation of steroidogenesis using rat primary granulosa cells co-cultured with oocytes. Treatment with soluble KL suppressed FSH-induced estradiol production and aromatase mRNA expression without changing FSH-induced progesterone...

Estrogen action is involved in the development and progression of breast cancer. In the present study, we studied the effects of bone morphogenetic proteins (BMPs) on breast cancer cell proliferation induced by estrogen using human breast cancer MCF-7 cells. MCF-7 cells express estrogen receptors (ER)α and β, BMP receptors, and Smad signaling molecules. Estradiol and membrane-impermeable estradiol stimulated MCF-7 cell proliferation. Estradiol also reduced mRNA level...

Introduction: H. pylori infection has been related with extragastric diseases such as type 2 diabetes.Aim: to evaluate changes in carbohydrate metabolism induced by 75g oral glucose tolerance test (OGTT), before and after antibiotic eradication treatment in patients colonized by H. pylori compared to healthy controls.Materials and methods: A prospective case-control study. Biochemical parameters, carbohydrate profile, ghrelin and G...

Involvement of BMP-3b (also called GDF-10) in osteogenesis, embryogenesis and adipogenesis has been reported to date. However, the functional receptors and intracellular signaling of BMP-3b have yet to be determined. In the present study, we studied the cellular mechanism of BMP-3b in osteoblast differentiation using mouse myoblastic C2C12 cells, which show osteoblasitc differentiation in response to osteogenetic BMP ligands. BMP-3b stimulated activin/TGF-β-responsive pro...

Introduction: H. pylori infection has been related with diseases such as type 2 diabetes and metabolic syndrome.Objective: To evaluate changes in carbohydrates metabolism, lipid profile and intake regulating hormones induced by 75 g oral glucose tolerance test (OGTT), before and after antibiotic eradication treatment in patients colonized by H. pylori.Materials and methods: A prospective study of 40 non-diabetics patients were perf...