Zinc y desnutrición / Zinc and undernutrition

Son cuatro los nutrientes en que su deficiencia es importante en niños: hierro, yodo, vitamina A y zinc. Más o menos se calcula que hay 2 billones de personas en el mundo con algún grado de déficit de zinc. Los pacientes que están en riesgo de presentar deficiencias de zinc son los recién nacidos con bajo peso al nacimiento, bien sea prematuros, desnutridos in útero o hijos de madres desnutridas, en los cuales sus depósitos están reducidos. A diferencia de otros oligoelementos o micronutrientes, determinar el estado de déficit no es fácil. Los niveles séricos de zinc, están influenciados por factores no dietarios como infección, estrés o actividad física extenuante; al igual que por el ciclo circadiano.

Four nutrient deficiency that is important in children, iron, iodine, vitamin A and zinc. More or less it is estimated that 2 billion people in the world with some degree of zinc deficiency. Patients who are at risk for zinc deficiency are infants with low birth weight, either premature or malnourished in utero, undernourished mothers, in which their deposits are reduced. Unlike other trace elements or micronutrients, determine the deficit is not easy. Serum levels of zinc are not influenced by dietary factors such as infection, stress or strenuous physical activity, as well as by the circadian cycle.

Síndrome de Currarino: informe de un caso / Currarino’s syndrome: a case report

El síndrome de Currarino es una enfermedad hereditaria rara. La forma completa se caracteriza por la presencia de una malformación ano-rectal (generalmente estenosis), masa presacra y defectos óseos del sacro. El signo más importante es la presencia de estreñimiento desde el nacimiento. Se presenta un paciente de 13 meses de edad que consultó por estreñimiento crónico severo en quien se encontró la presencia de hemisacro y meningocele anterior, ambos hallazgos compatibles con una forma leve del síndrome de Currarino. Se realizó un manejo conservador y se inició polietilenglicol oral (PEG®), con una excelente respuesta al tratamiento. Se hace la presentación del caso junto con la revisión de la literatura actual con el fin de dar a conocer al personal médico la presencia del síndrome, enfatizar en puntos importantes que generen sospecha de su presencia y las diferentes opciones terapéuticas para su manejo.

The Currarino’s syndrome is a rare inherited disorder. The complete form is characterized by the presence of ano-rectal malformation (usually stenosis), presacral mass and bone defects of the sacrum. The most important symptom is the presence of constipation since birth. A 13 month old patient with chronic and severe constipation is presented. Among the studies the presence of hemisacrum and anterior meningocele were found, both findings consistent with a mild form of Currarino’s syndrome. A conservative management with polietilenglycol oral (PEG®), was initiated with an excellent response to treatment. The presentation of the case with a review of current literature is given to the medical staff in order to publicize the syndrome, as well as to emphasize key points that create suspicion of their presence and the different therapeutic options for its approach.

[Infertility due to a pituitary gangliocytoma]. / Gangliocitoma hipofisario como causa de infertilidad.

This tumor of hypophyseal origin is rare and its incidence is estimated from 2-5% of central nervous system neoplasms. It is characterized by enlargement of the sella turcica and by the presence of neuron with adenomatous tissue since it is derived form the neural crest. Clinical symptoms do not differ from pituitary adenomas. The diagnosis is made by histological analysis and prognosis is favorable after surgical excision. It is reported the case of a 27 year old female complaining of abnormal menses who was seen at our clinic due to primary infertility of 6 year duration and galactorrhea. An MRI disclosed a 7 mm lesion within the pituitary area. Prolactin was 167 ng/mL. The patient underwent transphenoidal surgery and the histological report was of gangliocytoma. Two months after surgery the patient resumed menses and 6 months later a MRI did not reveal residual tumor; prolactin levels decreased to 44.8 and 18 ng/mL. Afterwards, the patient became pregnant and had a normal delivery. To our knowledge this is the first report of infertility due to a pituitary gangliocytoma.