ACTA ENDOCRINOLOGICA (BUC)

Background. Following recent years, there is an increased body of literature on the connections that might exist between type 2 diabetes mellitus and the efficiency of bariatric surgery in its reversal compared to other medical approaches such as dieting. Aim. To induce experimentally type 2 diabetes mellitus in rats in order to observe the effects of bariatric surgery in the recovery as well as the reestablishment of normal insulin levels in order to extend the findings in house animals. Materials and methods. This study was conducted in three stages: the first consisted in inducing type 2 diabetes mellitus (T2DM) in 40 young Wistar male rats, by initially feeding them human food high in vegetal fats, oleaginous seeds, simple and complex carbohydrates, sugars, lipids, fats, proteins and fructose for a period of 8 weeks followed by a single low dose of streptozotocin (STZ), administered through intraperitoneal injection. The second stage of the study started when the rats became obese and therefore qualified for the bariatric procedure and the third stage consisted of post-operation supervision and care. The surgical procedure, performed on 10 obese rats, consisted in reducing the size of the stomach by partial gastrectomy of a 1.5 – 2.0 cm wide and 6.5 – 7.5 cm long area on the large curvature. Results. Showed rapid improvements in body weight and blood sugar control after 9 days. Conclusion. After putting the rats on a diet high in carbohydrates, sugars, lipids and fats and administering them STZ, the induction of type 2 diabetes was successful and the partial gastrectomy led to a better blood sugar control. The bariatric procedure provides a faster therapeutic response than conventional diets.

Turner syndrome (TS) is the most common form of chromosomal hypogonadism in women. Clinical features are correlated with the haploinsufficiency of X genes which produces a precocious ovarian degenerescence, sexual hormones secretion deficiency and primary sterility. The review of medical literature reported 87 patients with different cytogenetic form of TS that have 185 pregnancies. In 45,X/46,XX women were described 61 pregnancies in 32 patients. In X homogeneous monosomy were described 43 pregnancies in 21 patients followed by X trisomy mosaicism which was identified in 9 women with 45,X/47,XXX formula (20 pregnancies) and at 11 patients was described 45,X/46,XX/47,XXX formula (35 pregnancies). An increased risk for abnormal pregnancies was proved by frequent miscarriages: 30 cases in 45,X/46,XX, followed by 16 in 45,X/46,XX/47,XXX and 13 in X homogeneous monosomy. Other possible gestational complications in patients with TS could be: dissection of aorta, endocrine diseases (diabetes mellitus, hypothyroidism), arterial hypertension and eclampsia, dystocia. The spontaneous menarche and pregnancy in TS patients are rare events, and usually the gestation is marked by obstetrical complications. The patients with 45,X/46,XX chromosomal formula have the highest risk for chromosomal abnormality in foetus and for miscarriage. The worst prognosis was cited for TS patients with partial X monosomy.