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Titolo:
Roles of arginine vasopressin and atrial natriuretic peptide in polydipsia-hyponatremia of schizophrenic patients
Autore:
Kawai, N; Baba, A; Suzuki, T; Shiraishi, H;
Indirizzi:
Mitsukaido Kosei Hosp, Dept Clin Psychiat, Mitsukaido 3030043, Japan Mitsukaido Kosei Hosp Mitsukaido Japan 3030043 Mitsukaido 3030043, Japan Univ Tsukuba, Inst Clin Med, Dept Psychiat, Tsukuba, Ibaraki 3050005, Japan Univ Tsukuba Tsukuba Ibaraki Japan 3050005 sukuba, Ibaraki 3050005, Japan
Titolo Testata:
PSYCHIATRY RESEARCH
fascicolo: 1, volume: 101, anno: 2001,
pagine: 39 - 45
SICI:
0165-1781(20010214)101:1<39:ROAVAA>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
PSYCHIATRIC-PATIENTS; WATER-INTOXICATION; CIGARETTE-SMOKING; SECRETION; DISORDERS; RELEASE;
Keywords:
hyponatremia; polydipsia; syndrome of inappropriate secretion of antidiuretic hormone (SIADH); water intoxication;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Kawai, N Mitsukaido Kosei Hosp, Dept Clin Psychiat, Uchimoriya Machi, Mitsukaido 3030043, Japan Mitsukaido Kosei Hosp Uchimoriya Machi Mitsukaido Japan 3030043
Citazione:
N. Kawai et al., "Roles of arginine vasopressin and atrial natriuretic peptide in polydipsia-hyponatremia of schizophrenic patients", PSYCHIAT R, 101(1), 2001, pp. 39-45

Abstract

Respective contributions of arginine vasopressin (AVP) and atrial natriuretic peptide (ANP) to the urinary sodium concentration were evaluated in 23 naturalistic incidents of polydipsia-hyponatremia observed in II hospitalized schizophrenics (10 males and 1 female). The sodium concentration of the spontaneously excreted urine was examined before and after the forced waterrestriction. Before the water restriction, mean (+/- S.D.) plasma ANP was 52.8 +/- 33.9 pg/ml (range = 6.9-137). Plasma AVP levels were below 0.3 pg/ml in 15 episodes; relatively high levels (greater than or equal to 0.3) were noted in eight episodes. Means of urinary sodium concentration (mEq/l) were significantly higher in episodes with high AVP (greater than or equal to 0.3) alone (25.0 +/- 8.2, n = 4), with high ANP (> 43) alone (21.3 +/- 7.4, n = 9), and with high AVP and ANP (26.8 +/- 6.4, n = 4) as compared to that of the low AVP (< 0.3) and ANP (<less than or equal to>43) group (13.5 /- 3.7, n = 6). The data indicate that the elevated urinary sodium in polydipsic patients is possibly due to the AVP-induced antidiuresis and/or the ANP-induced natriuresis. In addition, we observed a close relationship between elevated plasma AVP and vomiting, suggesting that vomiting is one of the causal factors responsible for AVP elevations in this syndrome. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/20 alle ore 22:28:36