Resumen. DELGADO FERNANDEZ, María del Rosario; ROMERO RIVERO, Oscar Luis y DIAZ BORROTO, Abel. Central insipid diabetes: presentation of a case. Articulo en XML; Referencias del artículo; Como citar este artículo; SciELO Analytics; Enviar Neurohypophisis and Insipid Diabetes: A description of a case. Palabras clave: Neurohipófisis [Histología]; Diabetes Insípida [ Diagnóstico];. Existen dos tipos: diabetes insípida (DI) central, debida a la síntesis o liberación defectuosas de arginina vasopresina (AVP) desde el Artículos de referencia.
|Published (Last):||5 April 2004|
|PDF File Size:||19.59 Mb|
|ePub File Size:||3.92 Mb|
|Price:||Free* [*Free Regsitration Required]|
When adequate stimuli are received, the hormone is secreted together with neurophysin by means of exocytosis. Diferentes autores han utilizado diversos criterios para clasificar y valorar la agresividad e invasividad de los macroadenomas. En este estudio se incluyeron de forma prospectiva 23 pacientes en el periodo comprendido entre Mayo y Diciembre del In particular, aquaporin 2 is regulated by AVP. Transsphenoidal neurosurgery of intracranial neoplasm.
Variations on the standard transsphenoidal approach to the sellar region, with emphasis on the extended approaches and parasellar approaches: Dichos aticulos facilitan la invasividad del tumor hacia el interior del seno cavernoso.
Diabetes insípida central: presentación de un caso
Hospital Universitario Vall d’Hebron. Localization and functions of AVP.
We describe the clinical course of a young lady who after her sixth childbirth developed severe postpartum hemorrhage followed by development of panhypopituitarism which was confirmed by hormonal investigation and demonstration of empty sella on imaging. The condition still continues to be a common cause of hypopituitarism in developing countries like India. Subscribe to our Newsletter.
The most important biological action of AVP is preservation of body water by reducing urinary output.
Essential insights into the molecular background and potential therapies for treatment. Todos ellos fueron intervenidos mediante un abordaje transesfenoidal.
If you want to submit a manuscript to the journal, articulso email it to bolmedhospinfantmex gmail. The medial wall of the cavernous sinus: Preoperatively all lesions were diagnosed by MRI and staged according to the Knosp classification. Large pituitary gland adenomas evaluated with magnetic resonance imaging.
Its synthesis is accompanied by the generation of a specific carrier protein called neurophysin II.
To improve our services and products, we use “cookies” own or third artuculos authorized to show advertising related to client preferences through the articulo of navigation customer behavior. In our experience, despite tumor extension to the cavernous sinus, pituitary macroadenomas can be safely resected with low morbidity and mortality.
Infants frequently cannot drink sufficient fluids to compensate for urinary losses. Magnetic resonance imaging of the sella turcica and parasellar region. Estudio prospectivo de una serie de 23 casos Predicitve value of the Knosp classification in the staging of invasive pituitary macroadenomas.
There was a problem providing the content you requested
Inadequately low levels for plasma osmolality have also been demonstrated in patients with neurogenic diabetes insipidus and high insipia of vasopressin in those with nephrogenic diabetes insipidus. See the new contents in http: Thus, under the influence of the osmotic gradient of sodium, water is reabsorbed intracellularly, enters the cell through the aquaporin-2 water channel and exits the cell towards the interstitium through aquaporin-3 and aquaporin-4, which is located in the basolateral cell membrane Fig.
Continuing navigation isipida be considered as acceptance of this use. Different ways to open and close the tap.
As a result of the process described, the renal tubular cell membrane that faces the tubular lumen, which is normally impermeable to water, becomes permeable. Anatomic changes in the renal medulla are frequently seen in patients with primary tubulointerstitial nephropathies, which modify the osmolar gradient dependent on the action of the mechanisms of the multiplication of the countercur-rent and cause the development of polyuria.
Secondary nephrogenic diabetes insipidus. Increase in the permeability to water in the collecting tubule of the nephron implies action of the aquaporin-2 water channel in the apical membranes of the principal cells of this segment of the renal tubule.
Transsphenoidal surgery of parasellar pituitary adenomas. However, hypokalemia produced by hydrochlorothiazide could compromise the capacity of urinary concentration of the patients with nephrogenic diabetes insipidus.
Proliferation in pituitary adenomas: The variables considered for analysis include invasion and resection grades. N Engl J Med.