ACTA ENDOCRINOLOGICA (BUC)

Gangliocytomas are extremely rare tumors, accounting for 0.1-0.5% of all brain tumors. We present a 25 years old woman with several characteristics of restrictive anorexia nervosa in association with a gangliocytoma of pineal region. The patient has been diagnosed with hydrocephalus shortly after birth. A ventriculoperitoneal shunt was initially inserted. At the age of 19 she underwent 2 consecutive occipital craniotomies for a well-defined large mass in the pineal region. Histopathological examination of this tumor revealed a gangliocytoma. Our patient began to reduce her food intake due to the concept that ”the tumor must not be fed”. After an almost 30 kg weight loss over 5 years, the patient weighs 39 kg at 165 cm height (BMI 14.3 kg/sqm), associated with a 1 year history of secondary amenorrhea and a tumor remnant of 4 cm. The weight loss, amenorrhea and some other psychosocial traits are common for anorexia nervosa. We discuss the difficulty of the differential diagnosis between anorexia nervosa and a hypothalamic eating disorder induced by the pineal gangliocytoma.

Background. Genetic variants of the endothelial nitric oxide synthase (eNOS) gene have\r\nbeen reported to be associated with cardiovascular disease. We hypothesized that G894T\r\npolymorphism might trigger many of the endocrine-metabolic changes related to metabolic\r\nsyndrome (MetS).\r\nStudy Design. 148 subjects with MetS and 142 healthy control subjects aged 23-60 years\r\nwere studied. Fasting serum levels of insulin, cortisol, 17-OH Progesterone, DHEA,\r\nandrostendione, IGF1, GH, PRL, CRP, resistin and biochemical profile were evaluated. G894T\r\n(eNOS) polymorphism was assayed by using PCR-RFLP technique.\r\nResults. The frequencies of genotypes and alleles of G894T polymorphism did not deviate\r\nfrom the Hardy-Weinberg equilibrium. In the MetS group the percentages of both GT (51.35 vs.\r\n39.44; OR=2.09; CI=1.27-3.45; p= 0.003) and TT (16.22 vs. 8.45; OR=3.08; CI=1.41-6.74;\r\np=0.003) genotypes and T allele (41.9 vs. 28.2; OR=1.83; CI=1.3- 2.6; p=0.0005) significantly\r\nincreased compared to control group. The G894T polymorphism was more significantly\r\nassociated with the MetS in the presence of cortisol, 17-OH Progesterone, PRL, IGF1 and CRP\r\n(OR= 8.20; 95%CI=2.31-29.08; p=0.001) and significantly stronger in the presence of IGF1,\r\nPRL, 17OHP, resistin and CRP (OR= 10.21; 95%CI=2.42-43.05; p=0.002). The T allele carriers\r\nhad higher values of waist circumference, systolic and diastolic blood pressure, cortisol, 17-OHP,\r\nandrostendione, PRL, resistin and lower values of glucose, HOMA-IR in MetS group; The TT\r\ngenotype carriers had higher values of triglyceride in both control and MetS group.\r\nConclusion. Our results show an interaction between the G894T polymorphism and its\r\nphenotypes in conferring a higher susceptibility to the endocrine changes involved in\r\npathogenesis of MetS suggesting a role of the eNOS gene in the modulation of the molecular\r\nendocrine mechanisms.