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At least 199 records · Page 11Linked to original sources
PubMed2003

Endocrine diseases in dogs and cats: similarities and differences with endocrine diseases in humans.

Over several millennia, humans have created hundreds of dog and cat breeds by selective breeding, including fixation of mutant genes. The domestic dog is unique in the extent of its variation in height, weight and shape as well as its behavior. It is primarily the relatively long persistence of high levels of growth hormone (GH) release at a young age that accounts for the large body size in giant breeds of dogs. Several of the endocrine diseases of humans are also known to occur as similar entities in dogs and cats. With some variations, this is true for conditions such as diabetes mellitus and the hypofunction syndromes of the thyroid and adrenal cortex. Also, the hyperfunction syndromes of hypercortisolism and hyperparathyroidism in dogs and cats have many similarities with their human counterparts. The exception seems to be Graves' disease. This condition, which is due to production of thyroid-stimulating hormone (TSH)-receptor antibodies, has not been observed in dogs and cats. The very common form of hyperthyroidism in cats is due to toxic adenomas. In the 1980s it was discovered that in dogs exogenous progestins and endogenous progesterone can induce GH excess. This GH excess originates form the mammary gland and may give rise to acromegaly and insulin resistance. GH production by the mammary gland is not unique to the dog. It has become clear that cats and humans also express the GH gene in the mammary gland. There is increasing evidence that this locally produced GH not only plays a role in the morphologic changes of the mammary gland associated with the ovarian cycle and gestation, but that it is also involved in the development of breast cancer. In dogs, induction of mammary GH production by progestin administration allows for treatment of GH deficiency.

Animals↗
PubMed1986

Cushingoid adrenal hyperplasia in infancy.

Cushing's syndrome, a characteristic pattern of obesity with hypertension due to the hyperfunction of the adrenal cortex, is relatively rare in infancy. Thirty-six infants have been reported in world literature, most of whom have had adrenal tumours. There are only eight reported cases of infants under the age of 1 year with adrenal hyperplasia responsible for Cushing's syndrome. This is a report of an 8 month old child with bilateral nodular adrenal hyperplasia.

Adrenal Gland Neoplasms↗
PubMed1986

Pheochromocytoma associated with adrenocortical adenoma: case report and literature review.

The case of a 60-year-old woman with pheochromocytoma and concomitant adrenocortical adenoma in the same gland is presented. She complained of episodic headache, palpitation, nausea, vomiting and sweating. Physical examination revealed that the patient has generalized obesity, wet skin and paroxysmal hypertension, but no signs of Cushing's syndrome. Elevated levels of urinary noradrenaline, adrenaline and total metanephrine were sequentially observed. In addition, urinary 17-OHCS was also slightly elevated, but plasma cortisol was normal and suppressed after oral administration of 0.5 mg of dexamethasone. Abdominal echography and CT scanning demonstrated a left adrenal tumor, which took up both 131I-meta-iodobenzylguanidine and 75Se-scintadoren in the same region. A left adrenalectomy was performed and the tumor was found to consist of two parts, pheochromocytoma (2.5 X 2.5 X 2.5 cm) and cortical adenoma (2.5 X 3 X 5 cm). A total of 23 reported cases showing evidence of hyperfunction of the adrenal cortex and the medulla were noted. So far as we know, this patient was the second case of pheochromocytoma with adrenocortical adenoma in Japan.

Adenoma↗
PubMed1992

[Arterial hypertension secondary to Conn's disease: an infrequent pathology in nephrology. Report of a clinical case].

In this work we describe a case of Conn's syndrome caused by a suprarenal adenoma in a sixty-one year female. The patient had come to our observation because of severe hypertension and hypokalemia. Primary aldosteronism resulting from the secretion of excessive amounts of aldosterone caused by autonomous hyperfunction of the adrenal cortex usually by a solitary adenoma. In most series of unselected patients, it is found in fewer than 0.5% of hypertensives. In our study we demonstrated the circadian changes of arterial blood pressure but we failed to demonstrate the presence of hypertrophic cardiomyopathy as recently emphasized in the literature. Regardless of its rarity, primary aldosteronism is a fascinating disease, protean in its manifestations, logical in its pathophysiology.

Adenoma↗
PubMed1983

[Arterial hypertension with hypopotassemia and hypochloremic metabolic alkalosis caused by abuse of a nasal spray].

The case of a young woman, using a nasal spray containing corticosteroids, presenting hypertension systodiastolic, hypokalemia and hypochloremic metabolic alkalosis is presented. Clinical findings, similar to hyperfunction of the adrenal cortex, recovered quickly after discontinuation of the drug. The principal causes of hypertension associated with hypokalemia and hypochloremic metabolic alkalosis, are discussed and the importance of nasal spray, containing glucocorticoids and sympathetic agonists, as a cause of high blood pressure syndromes with different clinical expression and of difficult diagnosis is stressed. The importance of systemic absorption of drugs administered by nasal route is also emphasized.

Adolescent↗
PubMedDate not supplied

[Adrenal hormones in the formation of atherosclerotic precursors in adolescents with primary arterial hypertension].

The components of blood lipid spectrum (total cholesterol, triglycerides and high density lipoprotein cholesterol) were studied in 131 adolescents (12-18 years old) with primary arterial hypertension at various levels of adrenal hormones (hydrocortisone and aldosterone) and blood plasma renin activity. The optimal ratio of lipid components in blood was detected if concentrations of adrenal hormones and blood plasma renin activity were low. Hyperfunction of the adrenal cortex in teen-agers contributed both to the development of hypertension and to atherosclerotic changes in vessels. This suggests that definite forms of hypertension occurred in adults, with specific impairments in the metabolism of blood serum lipids, were developed during the juvenile age.

Adolescent↗
PubMedDate not supplied

[Adrenogenital syndrome in an adolescent].

A case is presented of primary amenorrhea resulting from the hyperfunction of the adrenal cortex. The condition developed in prepuberty. The mode of the establishment of the diagnosis and the effect of dexamethason treatment are discussed.

Adolescent↗