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Titolo:
Effects of pinealectomy and sham-surgery on the area postrema in rats: A quantitative histological study with special reference to capillaries and neuronal cell nuclei
Autore:
Kudou, H; Kachi, T; Suzuki, T; Saito, Y;
Indirizzi:
Hirosaki Univ, Sch Med, Dept Obstet & Gynecol, Hirosaki, Aomori 0368562, Japan Hirosaki Univ Hirosaki Aomori Japan 0368562 rosaki, Aomori 0368562, Japan Hirosaki Univ, Sch Med, Dept Anat, Hirosaki, Aomori 036, Japan Hirosaki Univ Hirosaki Aomori Japan 036 Anat, Hirosaki, Aomori 036, Japan
Titolo Testata:
ARCHIVES OF HISTOLOGY AND CYTOLOGY
fascicolo: 2, volume: 64, anno: 2001,
pagine: 139 - 148
SICI:
0914-9465(200105)64:2<139:EOPASO>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
CEREBRAL BLOOD-FLOW; MELATONIN RECEPTORS; CIRCUMVENTRICULAR ORGAN; INVITRO AUTORADIOGRAPHY; CHEMICAL-STIMULATION; TRACTUS-SOLITARII; ANESTHETIZED RATS; BRAIN; LOCALIZATION; MECHANISMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Kudou, H Hirosaki Univ, Sch Med, Dept Obstet & Gynecol, Zaifuchou 5, Hirosaki, Aomori 0368562, Japan Hirosaki Univ Zaifuchou 5 Hirosaki Aomori Japan 0368562 62, Japan
Citazione:
H. Kudou et al., "Effects of pinealectomy and sham-surgery on the area postrema in rats: A quantitative histological study with special reference to capillaries and neuronal cell nuclei", ARCH HIST C, 64(2), 2001, pp. 139-148

Abstract

This study aimed to clarify the effects of pinealectomy and sham-surgery on the area postrema (AP) by quantitative histological methods. Male, Wistarrats of normal (NO), sham-operated (SX), and pinealectomized (PX) groups were used in the late dark phase at 7 weeks of age. Consecutive frontal sections including the AP were stained with hematoxylin and eosin, and immunostained using PGP 9.5 for neurons, or GFAP or vimentin for glial cells, Consecutive sections of the AP were separated into five portions starting from the point of the central canal opening to the fourth ventricle in the caudaldirection, and used for measurements. Mean cross-sectional areas of capillaries showed a lower value in the SX group than in the other two groups (vsNO, P <0.005; vs PX, P <0.03), In addition, the frequency distributions ofthe nuclear diameters of nerve cells showed different patterns among the three experimental groups (P <0.01), the frequency of large nuclei being higher in the SX group than in the other two groups. Possible mechanisms of the effects of sham-pinealectomy and pinealectomy and significance of the pineal-AP relation are discussed. The results of this study indicate that stuctural changes in the AP can be induced by intracranial surgery, suggesting certain pineal involvement in these changes.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 07:34:10