As the primary regulator of the endocrine system, the pituitary gland is the most important of the endocrine glands. The major glands of the endocrine system include the pituitary, thyroid, and parathyroid glands, and the pancreas, adrenal cortex, ovaries, and testes. The pituitary regulates the actions of most of these glands and many other body functions. It, in turn, is regulated by the hypo...

The location of renin (EC 3.4.99.19) in rat pituitary was determined by the peroxidase-antiperoxidase immunohistochemical technique. By using antisera prepared with purified rat renal renin, an immunoreactive substance was localized within ovoid cells scattered throughout the anterior pituitary. These cells were shown to be luteinizing hormone-producing cells by staining with anti-luteinizing h...

OBJECTIVE The present study was aimed to investigate the impact of postoperative pituitary tumor adrenal insufficiency and hormone replacement therapy (HRT) on tumor recurrence. PATIENTS AND METHODS The prospective study included 143 pituitary tumor patients as study subjects. Within 6 months after the operation, the study was planned to explore differences (if any) between the tumor recurren...

OBJECTIVE GH is usually the first pituitary hormone to be affected following a pathological insult to the pituitary; however, data on the prevalence of GH deficiency in patients with nonsecreting pituitary microadenomas and normal serum IGF-1 levels are scarce. This study aims to evaluate the prevalence of GH and other anterior pituitary hormone deficiencies, and to determine whether microadeno...

(SHBG): 73 nmol/l (normal, 13 to 71). His serum testosterone and the cortisol response on cosyntropin stimulation testing were normal. A presumptive diagnosis of a thyrotropin and growth hormone co-secreting pituitary adenoma was made. Octreotide LAR therapy was advised preoperatively to control thyroid hormone excess. He underwent transsphenoidal resection of the sellar mass, which was consist...

The adrenocorticotrophic and melanocyte-stimulating peptides of the human pituitary were investigated by means of radioimmunoassay, bioassay and physicochemical procedures. Substantial amounts of adrenocorticotrophin and a peptide resembling beta-lipotrophin were identified in pituitary extracts, but alpha-melanocyte-stimulating hormone, beta-melanocyte-stimulating hormone and corticotrophin-li...

A 9 year old boy with Poland's syndrome (absence of the left pectoralis major muscle associated with an ipsilateral malformation of the hand) and isolated growth hormone deficiency, owing to anatomical abnormalities of the pituitary gland, is described. MRI brain scan showed severe hypoplasia of both the sella and anterior lobe of the pituitary gland with absence of the pituitary stalk and ecto...

Congenital combined pituitary hormone deficiency (CPHD) is associated with deficiencies of anterior pituitary hormones. PROP1 gene mutations are often responsible for CPHD, but few such cases have been reported in Japan. This study describes a 37-year-old Japanese man with CPHD, treated with hydrocortisone, testosterone, and L-thyroxine, who was evaluated for adult growth hormone deficiency (GH...

Pituitary apoplexy occurs as a very rare complication following pituitary function tests. Signs and symptoms are due to the rapid expansion of an infarcted and/or haemorrhagic pituitary adenoma. We report a case of macroadenoma, in which pituitary apoplexy developed 30 minutes after administration of thyrotropin-releasing hormone (TRH) and gonadotropin-releasing hormone (GnRH) injections. Magne...

Abstract Background Pituitary stalk interruption syndrome is a rare congenital pituitary anatomical defect manifested with wide and various clinical presentations. Short stature delayed puberty are present in most cases may be combined extra malformations. Magnetic resonance imaging considered the key factor for reaching definite diagnosis as it reveals different radiological presentations of t...