ACTA ENDOCRINOLOGICA (BUC)

Background. Occult papillary thyroid carcinoma presented as isolated cervical lymphadenopathy without clinical and radiologic findings has been rarely reported. Case report. A 47 years old female patient admitted to otorhinolaryngology clinic with 4X3 cm sized cervical mass. Physical examination of the patient was noted as a nontender, firm, mobile lymph node at right lateral cervical region. There was no inflammatory or infection disease in the history of patients anamnesis and no abnormal value on laboratory tests. Ultrasound screening of the neck detected a lymph node with suspicious features for malignancy. Head and neck examination was normal and there is no evidence of a tumoral mass or nodule in the thyroid gland. Whole body scan of MRI showed no pathologic sign both in the neck and body. Excisional biopsy was performed and revealed a carcinoma with papillary morphology. Immunohistochemical staining features of the tumor confirmed a papillary carcinoma derived from the thyroid gland. Second look USG of the neck and thyroid was performed but it revealed no tumoral mass. The patient underwent total thyroidectomy with right functional and central lymph node dissection. Histological examination of the thyroid gland showed multicentric 2 mm sized, three foci of papillary carcinoma located in bilateral thyroid lobes and metastatic lymph nodes in the right side of the neck. Conclusion. A metastatic cervical lymph node can be evidence of a clinically undetected occult papillary thyroid carcinoma. Specific immunohistochemistry staining of specimen may lead to appropriate surgery and progression of carcinoma may be hindered by application of additional RAI therapy.

Objective. This study aimed to investigate the effect of symptoms of diabetes on the quality of life of individuals with Type 2 diabetes. Method. The study used a cross-sectional design. No sampling procedure was employed in the study; instead, 410 individuals presenting to the Balikesir Atatürk City Hospital Endocrinology and Internal Medicine Polyclinics between December 2016 and July 2017, diagnosed with Type 2 diabetes, and meeting the inclusion criteria were enrolled in the study sample. The study data were collected with a “Socio-demographic Characteristics Questionnaire”, the “Diabetes Symptom Checklist”, and the “SF-36 Quality of Life Questionnaire”. Results. The participants obtained the highest mean scores from the hyperglycemia subscale of the Diabetes Symptoms Checklist (3.35±0.60) and the mental health subscale of the SF-36 Quality of Life Questionnaire (50.65±8.10). The hypoglycemia, cardiology, psychology, and neurology variables included in the model were statistically significant and predicted 35% of the mental subscale score of the SF 36 questionnaire. SF 36 physical subscale score increased as the hypoglycemia, cardiology, psychology, and neurology scores decreased (p<0.05). Conclusion. The participants obtained high scores from the hyperglycemia subscale of the diabetes symptom checklist and mental health subscale of the quality of life questionnaire. Diabetes symptoms were found to affect the quality of life of individuals with diabetes.

Calciphylaxis, also known as calcific uremic arteriolopathy (CUA), is usually observed in women and it is a serious complication of hyperparathyroidism secondary to chronic renal failure. CUA is characterized by ischemic tissue loss secondary to progressive vascular degeneration. Although it is rare, it may end up with sepsis and organ failure and can be fatal. Its pathogenesis is not fully understood, but it is thought that it occurs secondary to increased calcification activators such as oxidized LDL, TNF- α, calcitriol, fibronectin, collagen-I, and TGF-1α. The most effective treatment is managing underlying pathology and decreasing serum calcium and phosphorus levels. In this report, we aimed to present an end stage renal failure case with coexisting hyperparathyroidism, hyperthyroidism and calciphylaxis in whom cutaneous manifestations were healed 6 months after parathyroidectomy.

Objective. Antithyroid drugs, surgical excision, and radiation therapy with 131I are the common treatment modalities thyrotoxicosis. The medical treatment of\r\nthyrotoxicosis has approximately 0.35% serious complications which consist of agranulocytosis, liver necrosis and failure. Therapeutic plasma exchange is an effective\r\npreoperative preparation method in thyrotoxicosis patients who are candidates for surgery and unable to manage an euthyroid state with medical treatment.\r\nPatients and Methods. This study was constructed between 2002-2009 in 9 patients who were resistant or had complications with medical treatment of thyrotoxicosis. The\r\ntherapeutic plasma exchange procedures were performed with discontinuous flow cell separator devices.\r\nResults. Seven patients were females and 2 patients were males. The mean age was 51.22 years (32-78 years). The mean duration of the disease was 35.4 months (3-120 months). The patients underwent 3.3 (2-6 sessions) session of therapeutic plasma exchange before surgery. The mean volume of\r\nplasma exchange was 10549 mL (7150-18372 mL). The plasma is exchanged with %10 albumin and/or fresh frozen plasma. The\r\ncomplication rate was 22% during therapeutic plasma exchange. Four patients underwent near total thyroidectomy and five patients underwent total thyroidectomy. The mortality rate was zero. Neck hematoma causing acute\r\nrespiratory compromise and requiring urgent evacuation developed in one patient.\r\nConclusions. Total plasma exchange is an effective and safe procedure in preoperative preparation of the patients with thyrotoxicosis who were resistant or complicated with\r\nantithyroid drug in which a high level of concern and steady supervision is mandatory to prevent life threatening preoperative and postoperative complications.

Objective. Both obesity and periodontal diseases are significant diseases that affect the quality of life. Recent studies have focused on the relationship between obesity and periodontal disease. The aim of this study is to determine the pathophysiological relationship between obesity and periodontal disease by evaluating the clinical periodontal parameters and oxidative status. Subjects and Methods. The study included 80 individuals divided into four groups including 20 individuals in each group as following; periodontally healthy patients with normal weight, (NH), patients with chronic periodontitis and normal weight (NCP), periodontally healthy patients with obesity (OH) and patients with chronic periodontitis and obesity (OCP). Clinical periodontal parameters were recorded, and serum, saliva and gingival crevicular fluid (GCF) samples were obtained. Local and systemic levels of total antioxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI) were assessed biochemically. Results. No statistically significant difference was found among the groups regarding TAS, TOS and OSI values in serum and saliva samples (p>0.05). GCF-TAS values in NH group were statistically significantly higher compared with other groups (p<0,05) . GCF TOS values increased in obese groups (OH, OCP) compared with non-obese groups (NH, NCP) (p<0.05). Our results suggest that obesity and chronic periodontitis do not effect oxidant/antioxidant levels in serum and saliva. Conclusions. Many factors such as daily living conditions of the individual, stress and nutritional habits TAS and TOS levels of the individual may affect oxidative stress parameters. However, these factors could not be standardized in the study.

Introduction. The aim of this study was to investigate the effects of vitamin D deficiency on insulin resistance in patients with non-diabetic chronic kidney disease. Materials and Method. A total of 104 patients with non-diabetic, stage 2 and 3 chronic kidney disease, who had presented to the outpatient clinic during 2 winters, were included in the study. HOMA-IR rate of > 2.6 was accepted as insulin resistance. Severe 25-OH-vitamin D deficiency was defined as < 10 ng/mL, and 10-30 ng/mL was defined as vitamin D insufficiency. The difference in insulin resistance between the patients determined as having severe vitamin D deficiency and vitamin D insufficiency was investigated. Results. Severe vitamin D deficiency was observed to be higher among women (61.8% vs. 38.2%), whereas insufficiency was more common among men (63.3% vs. 26.7%, p<0.05). Insulin resistance was observed to be higher in the group with severe deficiency (11.5 vs. 7.82, p<0.05). Insulin resistance was observed in 60% and 36.7% of the groups with severe deficiency and insufficiency, respectively (p<0.05). Conclusion. Severe vitamin D deficiency had resulted in insulin resistance at a greater rate compared to vitamin D insufficiency in patients with non-diabetic chronic kidney disease (stage 2-3).

Context. Papillary thyroid carcinoma(PTC)s are the indolent progressive tumours. Survivin is a unique bifunctional protein with cell cycle regulation and apoptosis inhibition. The expression of this protein has been shown to be increased in thyroid tumours correlated with aggressive behavior from well differentiated to anaplastic. Objective. In this study, we aimed to investigate the relationship between immunohistochemically survivin expression and tumour-associated prognostic factors in papillary thyroid carcinomas. Design. In patients with thyroidectomy, we compared the clinicopathological findings and immunohistochemical positivity for survivin. Subjects and Methods. In 109 patients, sex, age, tumour size, histological tumour variant, tumour focality, tumour border pattern, tumour peripheral/intratumoural lymphocytic and stromal response, intraglandular spread, extrathyroideal spread, lymph node metastases, lymphocytic tiroiditis and relationships of these findings with survivin positivity were investigated. Results. When we indicated the tumour size and compared it with survivin expression, tumour size correlates with, survivin expression (p = 0.016). Survivin expression was correlated statistically significant with lymphovascular invasion, without stromal response and with intraglandular extension respectively (p<0.001, p = 0.043, p<0.001). No significant correlation was found between other clinicopathological parameters and survival. Conclusion. Few studies have investigated the relationship of survivin expression with prognosis in thyroid papillary carcinomas and showed that survivin was a poor prognostic marker. If its expression is detected in preoperative cytology smears, it may affects the surgical treatment strategy. When it is detected in the tissue, postoperative radioactive iodine treatment plan may be modified and the need for more aggressive follow-up may be considered.

Context. Different vitamin D analogs might have advantages over calcitriol. Objective. To evaluate the effects of paricalcitol vs. calcitriol based vitamin D receptor activators on calcium-phosphate metabolism and pulse wave velocity in hemodialysis patients. Design. Observational, cross-sectional and 1 year follow-up study. Subjects and Methods. 181 hemodialysis patients were enrolled in this study as divided in to 5 groups based on vitamin D therapy. Baseline and 12th month data on blood biochemistry, pulse wave velocity and cumulative dose of treatments were compared in each study group as well as in overall paricalcitol vs. calcitriol-based treatment groups. Results. From baseline to 12th month, significant improvement in pulse wave velocity and parathyroid hormone was shown in paricalcitol-based treatment group without a significant change in calcium, phosphate, alkaline phosphatase. A significant increase in pulse wave velocity, serum phosphate levels, calcium x phosphate product and serum alkaline phosphatase levels were noted in calcitriolbased treatment group with no significant change in serum calcium and parathyroid hormone levels. Conclusion. Our findings revealed superiority of paricalcitol than calcitriol based vitamin D receptor activator therapy in terms of serum phosphate levels, CaxP product, dose requirement for vitamin D and the control of pulse wave velocity.

A 40-year-old woman has been followed up for 19 years by the\r\nendocrinology clinic with the diagnoses of Addison disease and primary hypothyroidism. During the most recent\r\nvisit of the patient, she complained about fatigue and malaise with pretibial edema. In albumin analysis: 2.2 gr/dL and 5.8 g/day proteinuria were detected. In terms of\r\nnephrotic syndrome etiology, renal biopsy was performed and it was considered as minimal change disease. The dose of 7.5\r\nmg/day methyl prednisolone was potentiated to a dose of 1mg/kg/day. During her control, the proteinuria did not regress and 150 mg/day cyclophosphamide was added to the treatment. During the control, her proteinuria regressed from 5.8 r/day to 1.95 mg/day.

Objective. This study was undertaken to examine prognostic factors in patients with pancreatic neuroendocrine tumors (PNET) undergoing surgical treatment to evaluate the prognostic value of recently introduced immunohistochemical staining methods of CD10 and cytokeratin 19. Materials and Methods. Tumors were classified on the basis of 2004 WHO Classification Guidelines and European Neuroendocrine Tumor\r\nSociety (ENETS) grading system. Immunohistochemical staining with Ki- 67, CD10 and cytokeratin 19 was performed. Results. A total of 36 patients with a mean age of 53.7 ? 12.0 years were included. Overall, 33 patients had a long-term follow-up with 10 patients (30.3%) experiencing recurrence. Seven\r\npatients (21.1%) died. Clinical parameters that were associated with recurrence included liver metastasis at the time of surgery and extra-pancreatic invasion (p < 0.005). Positive surgical margins, extra-pancreatic invasion, and multi-focal disease were associated with reduced survival (p < 0.05). In addition, there was an association between\r\nsurvival and WHO 2004 classification (p < 0.05).\r\nConclusions. Although vascular and peripancreatic invasion showed increased risk of recurrence, they were unrelated to survival. Of the histopathological examinations, Ki-67\r\nand mitotic activity showed a correlation with both recurrence and survival, while immunohistochemical\r\nstaining with cytokeratin 19 and CD 10 did not provide adequate prognostic information.