ACTA ENDOCRINOLOGICA (BUC)

Published data sustain the involvement of diet on pathogenesis of immune-mediated diseases.\r\nAim. To determine if the high fat diet (HFD), in the absence of obesity, could modulate the altered pulmonary arteries\r\nreactivity associated to allergic lung diseases.\r\nMaterials and Methods. Obese resistant rats were divided into 2 groups: standard chow diet and HFD. Randomly chosen rats from both groups were sensitized against ovalbumin. The histological aspect and reactivity of pulmonary arteries were comparatively assessed. Taking into account the involvement of adipokines on obesity associated vascular reactivity alteration we also studied the vasomotor effects of few adipokines on pulmonary vessels.\r\nResults. Lung histological examination revealed that HFD aggravated the remodelling of pulmonary arteries and\r\ninflammation of lung parenchyma. The HFD amplified the phenylephrine - induced contractions. Angiotensinogen amplified and apelin inhibited the Phe contractile effects on sensitized HFD fed rats.\r\nConclusion.These effects could be at least mediated, by both the alteration of adipokines vasomotor effects and\r\ninflammation associated to pulmonary allergic disease.

Context. In the surgical treatment of primary hyperparathyroidism, intraoperative localization of the diseased glands is an essential issue. We aimed to evaluate the impact of the intraoperative frozen section during radio-guided focused parathyroidectomy and compare its efficiency with intraoperative gamma probe survey and measurement of intraoperative quick parathyroid hormone. Methods. All consecutive patients underwent radio-guided focused parathyroidectomy for primary hyperparathyroidism due to solitary parathyroid adenoma. The outcomes of parathyroidectomy were evaluated by serum levels of calcium and parathyroid hormone. The primary outcome was the surgical cure diagnosed by normal serum calcium levels in the sixth postoperative month. Results. A total of 55 patients with a mean age of 54.3±12.2 years were evaluated. The diagnostic accuracy of the preoperative localization tests was calculated as 92.7%. The intraoperative gamma probe survey impacted the operative plans of four patients (7.3%) by localizing the diseased gland in other positions. The accuracy of intraoperative quick parathyroid hormone and frozen section analysis was 100% for both. In all patients, serum calcium and PTH levels dropped to normal in the sixth postoperative month. There were no cases of the persistent or recurrent disease during the follow-up period. Conclusion. The results of the intraoperative gamma probe survey, intraoperative quick parathyroid hormone, and frozen section were concordant with the final pathology in all cases. In four patients (7.3%), intraoperative gamma probe survey impacted the operative plans. The intraoperative gamma probe survey may be used as the sole intraoperative method to locate the correct position of the solitary parathyroid adenoma.

Objective. The aim of this study was to evaluate the possible protective effects of MT against gastric oxidative stress and dyslipidemia in streptozotocin (STZ) - induced diabetic rats. Methods. Forty male Wistar rats were randomly divided into five groups: control, diabetic, MT 5 mg/kg+ STZ, MT 10 mg/kg+ STZ and MT 20 mg/kg+ STZ. STZ (60 mg/kg) was intraperitoneally (ip) injected as a single dose for diabetes induction. One week after STZ administration, MT was injected daily as ip for 14 days. The levels of malondialdehyde (MDA), total thiol and glutathione, as well as superoxide dismutase (SOD) and catalase activities were measured in gastric tissue. Serum concentrations of triglycerides (TG), total cholesterol (TC), high density lipoprotein (HDL) and low density lipoprotein (LDL) were also determined. Results. Serum glucose significantly increased in diabetic group compared to control group. STZ induced a significant decrease in gastric tissue levels of total thiol, glutathione, catalase and SOD activities and a significant increase in MDA concentration. In diabetic rats, serum TG, LDL and TC were significantly higher and HDL was significantly lower than in the control group. Treatment of diabetic rats with MT caused a significant increase in gastric total thiol content and glutathione concentration as well as SOD and catalase activities. Gastric MDA concentration and serum LDL, TG and TC were significantly lower in MTtreated groups when compared with diabetic group. Conclusion. These data suggested that MT has a therapeutic effect on gastric oxidative damage and dyslipidemia induced by diabetes that possibly may be due to its antioxidant effects.

Today therapeutic options for obesity include miniinvasive methods. The authors present the results of a prospective study regarding a lot of 224 obese patients treated between January 2003 ? January 2005 with laparoscopic adjustable gastric banding (LAGB) (n=184) and endogastric balloon (n=40). The medium body mass index (BMI) of admission for LAGB was 46.08 kg/m2 (extremes between 36 ? 71 kg/m2), 42 patients being super obese (BMI over 50 kg/m2). There were no conversions to open techniques. Postoperative evaluations were at 1, 6 and 12 months. Medium BMI was 39.1 kg/m2 (115 patients) at six months after surgery and 38.78 kg/m2 (59 patients) at one year after surgery. Comorbidities were remitted at 72% of patients at 6 months postsurgery. The patients treated with endogastric balloon endoscopically introduced (40 cases) were followed 6 months, after that they were extracted (26 cases). The medium BMI of admission was 33 kg/m2 (extremes between 21 ? 43 kg/m2) and at 6 months the medium BMI was 26.8 kg/m2. Although we do not benefit of a long time follow-up, the favorable initial results allow us to state that miniinvasive techniques deserve an important place in the efforts of struggling against obesity and its consequences.

Background. Although androgen deficiency in men is associated with obesity, whether the deficiency is a consequence of the syndrome is still unclear. Aim. The aim of this study was to determine the association between low levels of sex hormones and development of the metabolic syndrome. Subjects and Methods. A total of 836 men, aged ≥ 20 years, participants of the Tehran Lipid Glucose Study, were assessed at baseline and after 6.5 years follow-up, based on both ATP III and IDF criteria for occurrence of metabolic syndrome. The association between serum total and free testosterone index and SHBG and metabolic syndrome was investigated using logistic regression models. Results. After 6.5 years of follow-up, the metabolic syndrome developed in 131 and 207 men based on ATP III and IDF criteria respectively. Multiple logistic regression analysis showed an inverse relationship for total testosterone in the lower tertile concentration, and serum triglycerides, according to both criteria mentioned (OR = 1.6; 95%CI 1.02-2.5). According to ATP III criteria, adjustment of waist circumference eliminated most of the correlations between total testosterone and metabolic syndrome (OR=1.34, 95% CI (0.8-2.3), while SHBG and free testosterone index were not significantly associated with the syndrome. According to IDF criteria, statistical adjustment of waist circumference eliminated most of the correlations between total testosterone and metabolic syndrome [(OR=1.45, 95% CI (0.9-2.3)], and adjustment with triglycerides eliminated all correlations between SHBG and metabolic syndrome (OR=1.5, 95% CI (0.9-2.5). Conclusions. Androgen deficiency may be related to poorly controlled serum triglycerides and increased waist circumference.

Background and aim. The goals of bariatric surgery are to improve the quality of life by lowering body mass index (BMI) but also to treat obesity comorbidities. The aim of our study was to evaluate the impact of laparoscopic sleeve gastrectomy (LSG) on metabolic parameters. Methods. 85 obese patients treated by bariatric surgery LSG procedure were included in the study. Basal, 6 and 12 months after surgery serum glucose levels and lipid fractions were measured. Metabolic syndrome criteria according to IDF 2006 were evaluated at baseline and after bariatric surgery. Results. Our group included 61.2 % female patients, the mean age was 40.2 ±10.2 years and the metabolic syndrome criteria at baseline were confirmed in 69.4% of the study group. At twelve months after the intervention, the mean excess weight loss (%EWL) was 72%, with age and BMI subgroups variations. We found significant improvements of serum concentrations for triglycerides (P-value = 0.001, decreased by 30%), HDL-cholesterol (P-value = 0.017, increased by 26%), total cholesterol (P-value = 0.043, decreased by 12%) and glucose (P-value = 0.007, decreased by 12%). Conclusions. The positive effect of bariatric surgery was confirmed for lipid fractions and fasting glucose levels, also the metabolic syndrome prevalence was significantly reduced, all these changes contribute to lower cardiovascular risk together with significant weight loss.

Context and Objective. The risk of needing lifelong thyroid hormone supplementation is an important factor affecting treatment decisions for both patients and clinicians ahead thyroid lobectomy. The purposes of this study were to assess the predictive factors of levothyroxine medication after thyroid lobectomy. Methods. We retrospectively reviewed 252 patients who had undergone lobectomy for benign thyroid nodules between April 2009 and April 2017. We conducted two independent analyses: patients who started taking levothyroxine after surgery were compared with those who did not, and patients who did not need levothyroxine at last follow-up were compared with those who required continued treatment. We investigated the correlations of patient clinicopathological characteristics and levothyroxine medication after lobectomy. Results. Ninety-eight patients started levothyroxine after surgery. Of these, 34 patients successfully ceased medication and 64 patients continued treatment as of their last follow-up. In multivariate analysis, older age and preoperative TSH ≥2.0mIU/L were associated with levothyroxine initiation after surgery. In terms of continuity of levothyroxine, both older age and TSH ≥ 3.0mIU/L showed a significant correlation with continuous medication. We created a risk-scoring system to predict likelihood of starting and maintaining levothyroxine using the two significant factors in each comparison. A risk score of 3 or more indicated an increased risk of starting levothyroxine (specificity = 81.8%; sensitivity = 48.0%). A risk score of 3 or more indicated increased risk of continuous medication, (specificity = 94.2%; sensitivity = 35.9%). Conclusions. Greater age and higher preoperative TSH levels correlated with initiation and continuity of levothyroxine medication after lobectomy.

Background. It is important to protect recurrent laryngeal nerve (RLN) during thyroid surgery. Thus, intraoperative neuromonitoring (IONM) has got popularity. But, the half life of neuromuscular blocking agents used has a reverse correlation with reliability and effectiveness of IONM. This study aimed to research the effect of Sugammadex Sodium, a specific nemuromuscular blocking agent antagonist, on nerve conduction and IONM. Materials and methods. Twenty patients who underwent thyroidectomy under IONM followed an enhanced NMB recovery protocol-rocuronium 0.6 mg/kg at anesthesia induction and sugammadex 2 mg/kg at the beginning of operation. To prevent laryngeal nerve injury during the surgical procedures, all patients underwent intraoperative monitoring. At the same time, the measurement of TOFWatch acceleromyograph of the adductor pollicis muscle response to ulnar nerve stimulation was performed; recovery was defined as a train-of-four (TOF) ratio ≥ 0.9. Age, sex, recurrent laryngeal nerve transmission speeds prior to and after operation, BMI, duration of surgery, the change in nerve transmission after drug administration and complications were analyzed. Results. The mean age and the mean BMI were 47.6±11.82 years and 28.74±3.20, respectively. The mean operation duration was 52.65±5.51 minutes. There was no difference in either right or left RLN monitoring values before and after surgery. Following the drug injection, the TOF guard measurements on the 1st, 2nd, 3rd and 4th minutes were 23.5±4.90; 69.5±6.86; 88±4.1 and 135.9±10.62, respectively. Conclusion. Neuromuscular blocking antagonist use and monitoring nerve transmission speed with TOFguard can provide a safer resection.

Introduction. The definition of severity and activity of Graves' ophthalmopathy (GO)comprises different parameters.\r\nThe aim of this study is to select the most appropriate severity and activity criteria, respectively scores and to investigate a possible correlation among them.\r\nSubjects and methods. The study included 51 patients with GO (43 females, 8 males), mean age 46.8?11.2 years. The patients were evaluated by: clinical exam, laboratory\r\nparameters (TSH, FT4, FT3, thyroid autoantibodies) and imagistic means, performed in selected cases (CT or MRI).\r\nResults. The GO activity was assessed by the clinical activity score (CAS). We quantified the EUGOGO severity criteria, by allotting points for each selected parameter.\r\nAccording to the recommended criteria, the cases were divided into active (n=26) and inactive forms (n=25). There were no significant statistical differences regarding CAS\r\nbetween euthyroid cases (n=14) and dysthyroid cases (n=37). Serum thyroid receptor antibodies (TRAb) levels did not correlate with CAS or severity scores. Severity scores\r\ncorrelated significantly with CAS (Pearson correlation index 0.546, r2=0.290, p=0.0001).\r\nConclusion. Active forms of GO showed higher severity scores than the inactive ones. The severity scores correlated significantly with CAS scores. Neither CAS, nor severity scores correlated significantly with the severity of thyrotoxicosis.

Prader Willi syndrome is a complex disease caused by the lack of expression of paternally inherited imprinted genes on chromosome 15q11.2-q13. Typical clinical features are hypotonia and feeding difficulties in infancy, followed by hyperphagia and progressive obesity, distinctive dysmorphic features, intellectual disability and behavioural problems. In this paper we present clinical, metabolic and endocrine aspects in five genetically confirmed patients with PWS. Data about thyroid dysfunction, GH deficiency, adrenal insufficiency, and LH/FSH disorder caused by hypothalamic dysfunction in PWS were collected and analyzed. Cardiovascular metabolic profile was also assessed, based on plasma lipids, blood glucose, HbA1c values, and measurements of body weight and blood pressure. Clinical features present in all our patients were marked hypotonia and feeding difficulties in infancy, obesity, dysmorphic face, viscous saliva, small hands and feet, intellectual disability and characteristic behaviour. Adrenal function appeared to be normal in all patients; mild hypothyroidism was identified in one patient; sex development abnormalities were present in three patients and GH levels were within lower normal range in all patients. GH therapy was initiated in two patients, both with unevolutive skeletal anomalies, with good results and no side-effects. Only one patient had a normal lipid profile, underlying the importance of early detection and treatment of cardiovascular risk factors. Our study also illustrates the challenges raised by some features very rarely described in PWS (Blount disease and multiple allergies).