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Target Concepts:
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Query: UNIPROT:P01185 (
vasopressin
)
23,126
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Urinary excretion rates of
antidiuretic hormone
were determined by radioimmunoassay in children with bacterial (6) and viral (11) meningitis, and in children with other febrile illnesses (7). These values were compared to normal data obtained from 50 healthy, normally hydrated children ranging in age from 1 week to 9 years. Plasma sodium concentrations were measured in the sick children; urine osmolality and creatinine concentrations were measured in all children. Upon admission, all children with bacterial meningitis and 64% of those with
viral meningitis
had urinary
antidiuretic hormone
excretion rates greater than 2 S.D. above values obtained from age-matched controls. Fifty-seven percent of children with other febrile illnesses had similarly elevated
antidiuretic hormone
values; however, only in the bacterial and
viral meningitis
groups were
antidiuretic hormone
excretion rates inappropriate because they occurred when serum sodium concentrations were found to be normal or low normal (i.e., 136 +/- 2 mEq/L and 137 +/- 1 mEq/L, respectively). The average serum sodium in the group with other febrile illnesses was higher (146 +/- 5 mEq/L; p less than 0.05) and could represent an appropriate stimulus for
antidiuretic hormone
release. In spite of high levels of
antidiuretic hormone
, most
viral meningitis
patients did not concentrate their urine, probably because all except 2 were younger than 2 months of age. We conclude that
viral meningitis
, like bacterial meningitis, frequently is associated with inappropriate
antidiuretic hormone
secretion; however, most children with
viral meningitis
may be protected from developing hyponatremia because of their inability to concentrate their urine.
...
PMID:Inappropriate antidiuretic hormone in children with viral meningitis. 271 37
We report an autopsy case of granulomatous angiitis of the central nervous system (GANS) complicated by the syndrome of inappropriate
antidiuretic hormone
(SIADH). A 88-year old female was admitted because of progressive mental deterioration, fever, and vomiting. A computed tomogram disclosed bilateral periventricular lucency, and a low-density area in the right occipital lobe. Laboratory studies during her hospital stay, revealed hyponatremia, hypoalbuminemia, and increased
antidiuretic hormone
. Treatment with antibiotics, hypertonic saline solution, and steroids, and water restriction was ineffective, and the patient died six weeks after admission. Autopsy examination of the brain revealed slightly turbid meninges with multiple small infarctions in the corona raiata of both cerebral hemispheres. Microscopic study disclosed granulomatous inflammation with many giant cells in the walls of small and medium sized vessels, and the adventitia and media were more involved than the intima. Their lumens were narrowed, and many thrombi were observed. Extensive non-granulomatous inflammatory change was found mainly in the subarachnoid space. All of these findings were similar to the GANS firstly reported by Cravioto et al, in 1959. Since the blood vessels in the central nervous system play an important part in any inflammatory conditions and the blood vessels may be involved by bacterial, fungal, parasitic or
viral meningitis
, various microorganisms have been suspected as the cause of GANS, including mycoplasma, herpes zoster, herpes simplex viruses, cytomegalovirus, and human T-lymphotropic virus type III (HTLV-III). Some reported cases have been associated with Hodgkin's disease and cerebral amyloid angiopathy. We could not identify any cause in our case.(ABSTRACT TRUNCATED AT 250 WORDS)
...
PMID:[Granulomatous angiitis of the central nervous system complicated by the syndrome of inappropriate antidiuretic hormone]. 760 90