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Titolo:
Local cold stress to the soles induces retroplacental hemorrhage in rats
Autore:
Khatun, S; Kobayashi, T; Belayet, H; Sumimoto, K; Iwaki, T; Kanayama, N;
Indirizzi:
Hamamatsu Univ, Sch Med, Dept Obstet & Gynecol, Hamamatsu, Shizuoka 4313192, Japan Hamamatsu Univ Hamamatsu Shizuoka Japan 4313192 , Shizuoka 4313192, Japan
Titolo Testata:
SEMINARS IN THROMBOSIS AND HEMOSTASIS
fascicolo: 2, volume: 27, anno: 2001,
pagine: 79 - 86
SICI:
0094-6176(2001)27:2<79:LCSTTS>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYMPATHETIC NERVOUS-SYSTEM; ABRUPTIO PLACENTAE; TROPHOBLAST INVASION; PREECLAMPSIA; HYPERTENSION; OVERACTIVITY;
Keywords:
localized cold stimulation; placental histology; sympathetic nerve; uterine blood flow; uterine contraction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Kanayama, N Hamamatsu Univ, Sch Med, Dept Obstet & Gynecol, 3600 Handa Cho, Hamamatsu,Shizuoka 4313192, Japan Hamamatsu Univ 3600 Handa Cho HamamatsuShizuoka Japan 4313192
Citazione:
S. Khatun et al., "Local cold stress to the soles induces retroplacental hemorrhage in rats", SEM THROMB, 27(2), 2001, pp. 79-86

Abstract

The aim of this study was to investigate the effect of local cold stress to the soles on placental histology in rats. Pregnant rats were subjected toa cold provocation (0 degreesC, 12 degreesC) and room temperature (23 degreesC) for 15 and 30 minutes. During cold stimulation and at the control temperature, uterine blood now and uterine contraction were measured simultaneously. Histological studies of the placentas of these rats were also performed. Cold stress at 0 degreesC and 12 degreesC significantly decreased uterine blood flow (P < .005, P < .02) compared with controls (23 degreesC). The decrease in uterine blood flow was greater at 0 degreesC than at 12 degreesC stress. Cold-induced stress (0 degreesC) also evoked an isometric tension with increased frequency and amplitude in the rat uterus (P < .003, P < .0002) compared with controls (23 degreesC). Stimulation at 12 degreesC didnot induce any uterine contractions. Placental histology of rats stressed at 0 degreesC revealed hemorrhages into the decidua basalis. These findingssuggest that local cold stress decreases uterine blood flow and increases uterine contraction, resulting in retroplacental hemorrhage in rats. This model may account for human abruptio placentae.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 19:56:01