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Results for “Adrenocortical Hyperfunction”

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At least 1,603 records · Page 89Linked to original sources
PubMed1990

Pulmonary thromboembolism in dogs: 47 cases (1986-1987).

Medical records of 47 dogs with pulmonary thromboembolism were reviewed. Middle-aged to older dogs predominated and dyspnea and arterial hypoxemia were consistent clinical findings. Thoracic radiographic findings were variable. Cardiac disease, neoplasia, hyperadrenocorticism, disseminated intravascular coagulation, and sepsis were identified most frequently. Multiple disease processes were identified in 64% of the dogs.

Adrenocortical Hyperfunction↗
PubMed1990

[Cushing's syndrome resulting from ectopic hormonal secretion].

A case of a 29 year old man with typical picture of Cushing's syndrome is presented: pronounced hypodynamics, diabetes mellitus, hypertension, transitory psychic disorders, severe hypokalemia, metabolic alkalosis, hypercorticism, disturbed 24 h rhythm of cortisol secretion, high serum ACTH level. The treatment with steroidogenesis blockers (Metyrapone, o,p'DDD) led to a limited improvement. The well expressed organic changes in the cardiovascular and respiratory systems and pulmonary thromboembolism led to a fatal outcome. The post mortem examination revealed a pancreatic tumor 30/30 mm in size (histologically carcinoid) and enlarged hypophyseal gland with oxyphil cell hyperplasia. The electron microscopic examination found secretory granules in the pancreatic tumor cells. Concurrent ectopic secretion of ACTH by the oxyphil tumor cells is discussed.

ACTH Syndrome, Ectopic↗
PubMed1990

Assessment of fat absorption in normal dogs and in dogs with hyperadrenocorticalism.

Fat absorption was determined quantitatively in clinically normal dogs, dogs with confirmed hyperadrenocorticalism before and after treatment with mitotane (op' DDD) and in pruritic dogs before and after administration of prednisolone. Fat absorption was significantly higher (P less than 0.001) in dogs with untreated hyperadrenocorticalism and pruritic dogs on prednisolone therapy than in normal dogs. It was normal in pruritic dogs before prednisolone therapy and approached normality in dogs with treated hyperadrenocorticalism. It is concluded that high circulating cortisol or prednisolone levels result in increased intestinal absorption of dietary fat possibly mediated by increased glucocorticoid induced activity of enterocytes or reduced hepatic clearance of triglycerides.

Adrenocortical Hyperfunction↗
PubMedDate not supplied

[Comparison of MR and CT in a radiological study of Cushing's syndrome. A report on 16 cases].

In 16 patients with high cortisol plasma levels MRI and CT investigation of adrenal gland region was performed; 13 also had the pituitary region examined. CT and MRI results in Cushing's Syndrome due to adrenal glands etiology (8 cases) are overlapping. The morphological criteria utilized consist in the radiological finding of bilateral adrenal hyperplasia or adrenal mass (adenoma, carcinoma). The great amount of retroperitoneal fat increases the normal contrast with both techniques. In the pituitary Cushing's Syndrome MRI was more sensible than CT as far as it concerns ACTH producing pituitary lesion assessment; this technique may show 5 mm diameter adenomas for their high signal intensity.

Adenoma↗
PubMed1990

Plasma cortisol response to ketoconazole administration in dogs with hyperadrenocorticism.

The effect of orally administered ketoconazole on plasma cortisol concentration in dogs with hyperadrenocorticism was evaluated. Every 30 minutes from 0800 hours through 1600 hours and again at 1800 hours, 2000 hours, and 0800 hours the following morning, 15 clinically normal dogs and 49 dogs with hyperadrenocorticism had plasma samples obtained and analyzed for cortisol concentration. The mean (+/- SD) plasma cortisol concentration for the initial 8-hour testing period was highest in 18 dogs with adrenocortical tumor (5.3 +/- 1.6 micrograms/dl), lowest in 15 control dogs (1.3 +/- 0.5 micrograms/dl), and intermediate in 31 dogs with pituitary-dependent hyperadrenocorticism (PDH; 3.4 +/- 1.2 micrograms/dl). Results in each of the 2 groups of dogs with hyperadrenocorticism were significantly (P less than 0.05) different from results in control dogs, but not from each other. The same cortisol secretory experiment was performed, using 8 dogs with hyperadrenocorticism (5 with PDH; 3 with adrenocortical tumor) before and after administration at 0800 hours of 15 mg of ketoconazole/kg of body weight. Significant (P less than 0.05) decrease in the 8-hour mean plasma cortisol concentration (0.9 +/- 0.2 microgram/dl) was observed, with return to baseline plasma cortisol concentration 24 hours later. Twenty dogs with hyperadrenocorticism (11 with PDH, 9 with adrenocortical tumor) were treated with ketoconazole at a dosage of 15 mg/kg given every 12 hours for a half month to 12 months. The disease in 2 dogs with PDH failed to respond to treatment, but 18 dogs had complete resolution of clinical signs of hyperadrenocorticism and significant (P less than 0.05) reduction in plasma cortisol responsiveness to exogenous adrenocorticotropin (ACTH).(ABSTRACT TRUNCATED AT 250 WORDS)

Adenoma↗
PubMedDate not supplied

Biological markers in psychiatry.

Biological markers in psychiatry are defined as measurable and quantifiable indices of psychiatric disorders. Criteria for biological markers are discussed. The criteria for the assignment of a biological marker to the pathophysiology, pathogenesis, or etiology of a disorder are proposed. None of the biological markers described in the literature for depression, schizophrenia, alcoholism or anxiety as separate disorder fulfills the specified criteria. Most of them can at best be considered as biological markers of the aspecific processes of strain and stress. Free-floating anxiety is the clinical hallmark of strain.

Adrenocortical Hyperfunction↗
PubMed1979

[Vomiting in infants].

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Adrenocortical Hyperfunction↗
PubMed1989

[Calcium-regulating hormones in endogenous hypercorticism].

Investigation of 44 patients with endogenous hypercorticism (EH) of various degrees of severity showed that the development of osteoporosis was accompanied by changes in the indices of calcium-phosphorus metabolism and calcium regulating hormones. Marked variations in the level of parathyroidin, calcitonin, vitamin D3 were observed in a severe type of EH. All the examinees were characterized by a decrease in the transport form of vitamin D3, which was most noticeable in a mild form of EH. A significant decrease in the concentration of the transport form of vitamin D3 against a background of hypercalcemia and hypercalciuria in mild EH can be regarded as the most informative indicators in early diagnosis of initial symptoms of osteoporosis.

Adolescent↗