A New Approach to Natural Lift Curves of The Spherical Indicatrices of Timelike Bertrand Mate of a Spacelike Curve in Minkowski 3-Space

Bertrand curves are one of the associated curve pairs for which at the corresponding points of the curves one of the Frenet vectors of a curve coincides with the one of the Frenet vectors of the other curve

Intussusception in adults: Clinical characteristics, diagnosis and operative strategies

AIM: To evaluate 20 adults with intussusception and to clarify the cause, clinical features, diagnosis, and management of this uncommon entity

Serum ghrelin levels in papillary thyroid carcinoma

<div><p>ABSTRACT Objective Ghrelin plays a role in several processes of cancer progression, and numerous cancer types express ghrelin and its receptor. We aimed to investigate serum levels of ghrelin in patients with papillary thyroid carcinoma (PTC) and its association with the prognostic factors in PTC. Materials and methods We enrolled 54 patients with thyroid cancer (7 male, 47 female) and 24 healthy controls (6 male, 18 female) in the study. We compared demographic, anthropometric, and biochemical data, and serum ghrelin levels between the groups. Serum ghrelin levels were measured using as enzyme-linked immunosorbent assay. Results Ghrelin levels were similar between the groups, but plasma ghrelin levels were significantly higher in tumors larger than 1 cm diameter compared with papillary microcarcinomas. Serum ghrelin levels also correlated with tumor size (r = 0.499; p < 0.001). Body mass index, thyroid-stimulating hormone, and HOMA-IR levels were similar between the groups. There were no statistically significant differences regarding average age and other prognostic parameters including lymph node invasion, capsule invasion, multifocality and surgical border invasion between patients with microcarcinoma and tumors larger than 1 cm. Conclusion In our study, no significant difference in serum ghrelin levels was determined between patients with papillary thyroid cancer and healthy controls however, serum ghrelin levels were higher in tumors larger than 1 cm compared to in those with thyroid papillary microcarcinoma.</p></div

A Rare Cause of Colonic Obstruction “Colonic Intussusception”: Report of Two Cases

Colocolic intussusceptions are rare clinical entities in adults and almost always caused by a leading lesion which often warrants resection. Mostly being malignant, the leading lesions are rarely benign lesions where intraluminal lipomas are the most frequent among them. Most adult intussusceptions require surgical resection owing to two major reasons: common presence of a leading lesion and significantly high risk of malignancy—reaching as high as 65% regardless of the anatomic site—of the leading lesion. Resection of the affected segment is usually the treatment of choice, since preoperative diagnosis of the lesion is usually ineffective and most leading lesions are malignant. This paper represents two cases of adult colocolic intussusception caused by intraluminal lipomas with a brief review of the literature

The association of autoimmune thyroiditis and non-functional adrenal incidentalomas with insulin resistance

Objective Patients with incidental nonfunctioning adrenal adenoma are associated with increased risk of obesity, impaired glucose tolerance and dyslipidemia. We aimed to investigate the relationship between thyroid function, serum lipids and insulin resistance in patients with nonfunctioning adrenal incidentaloma. Subjects and methods Forty patients who had diagnosed as adrenal incidentaloma (AI) in our department were included in the study. Serum free triiodothyronine (fT3), free thyroxine (fT4), thyroid stimulating hormone (TSH), anti-thyroperoxidase antibody (anti-TPO Ab) and anti-thyroglobulin antibody (anti-Tg Ab), lipid profile, hs-CRP, fasting insulin levels were measured and insulin resistance calculated by HOMA-IR. Thyroid volume (TV) was assessed. Results None of the patients showed specific signs and symptoms of hormone excess. TV, TSH and fT3 levels in the patient and control groups did not differ significantly (p > 0.05). The serum fT4, anti-TG Ab, anti-TPO Ab levels in the patient group were significantly higher than in the control group (p = 0.013, p < 0.0001, p = 0.016 respectively). The HOMA-IR, hs-CRP and HDL cholesterol levels in the AI patients were significantly higher than the control group (p = 0.034, p = 0.041, p = 0.002, respectively). Statistically significant relationship was found between HOMA-IR and thyroid volume (r = 0.373, p = 0.018), fT4 (r = 0.382, p = 0.015), hs-CRP (r = 0.512, p = 0.001), HDL cholesterol (r = 0,351 p = 0.026) in AI patients. There were significant correlation between anti-TG Ab, anti-TPO Ab and TSH levels in AI patients (r = 0.431 p = 0.006, r = 0.402 p = 0.012). Conclusions Patients with nonfunctioning adrenal incidentaloma have several metabolic disturbances. At the same time autoimmune thyroid disorders are more frequent in nonfunctioning adrenal incidentaloma patient so that thyroid functions must be evaluated in those patients. Arch Endocrinol Metab. 2015;59(1):42-

SAFETY AND EFFICACY OF TIROFIBAN HYDROCHLORIDE (TH) IN CERULEIN-INDUCED ACUTE PANCREATITIS

Introduction: Tissue perfusion plays an important role in pancreatitis. Free oxygen radicals also have some triggering roles in the severity of acute pancreatitis. Tirofiban hydrochloride (TH) is being used for ischemic disorders for many years and is known as an antiaggregant drug. We aimed to determine the therapeutic effects of tirofiban in cerulein-induced acute pancreatitis in this animal study. Materials and methods: Twenty-four Wistar-Albino male rats were divided into three equal groups; Group I: Sham-operated group, Group II: cerulein induced pancreatitis group, Group III: cerulein induced pancreatitis + treatment group (intraperitoneal 0.25 mg tirofiban hydrochloride in 1 ml isotonic saline solution). Amylase and lipase levels were studied in blood samples and malondialdehyde, glutathione peroxidase and superoxide dismutase activities were measured in tissue samples. Results: Amylase and lipase levels were elevated in acute pancreatitis group. The levels of both enzymes were decreased after the rats were medicated with TH. Malondialdehyde (MDA) was higher in pancreatitis group without treatment. There were no significant differences between groups according to glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) levels. Conclusion: The present findings suggest that TH has an antiaggregant effect and may reduce the progression and improve the healing of acute pancreatitis