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FURTHER INVESTIGATION OF HISTOCHEMISTRY OF FRUCTOSE-1,6-DIPHOSPHATE d-GLYCERALDEHYDE-3-PHOSPHATE-LYASE IN THE RAT BRAIN (1968)

Maeda, T. ; Shimizu, N. ; Wegmann, R.

Oxford, UK : Blackwell Publishing Ltd

Journal of neurochemistry 15 (1968), S. 0

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ISSN: 1471-4159

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Medicine

Notes: The distribution of fructose-1,6-diphosphate d-glyceraldehyde-3-phosphate-lyase (I.U.B. 4.1.2.13) (fructose diphosphate aldolase) in brain sections fixed by alcohol was studied using a gelled substrate mixture containing d-glyceraldehyde-3-phosphate: NAD oxidoreductase (I.U.B. 1.2.1.12) and phenazine methosulphate. The formazan precipitation pattern in brain sections depends on the experimental conditions determining the affinity of the complex of Nitro-blue tetrazolium and phenazine methosulphate to tissue components. The complex is unable to precipitate on the white matter in fresh sections but alcohol fixation increases its affinity to the white matter and decreases it to the neuropil. Using the modified histochemical method, aldolase activity in the brain was seen both in the gray and white matter. Although the distribution of this enzyme activity in the gray matter was generally identical with that obtained previously, in the present study enzyme activity was found in the paraventricular structures and in the white matter where negative activity was previously obtained.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1471-4159.1968.tb08949.x

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Control of body fluid volume regarded as a feedback system (1966)

Nagasaka, M. ; Shimizu, K. ; Maeda, T. ; [et al.]

Springer

Medical & biological engineering & computing 4 (1966), S. 567-574

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ISSN: 1741-0444

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Chemistry and Pharmacology , Medicine

Description / Table of Contents: Sommaire Pour simuler l'auto-régulation du volume de fluide du corps humain au moyen de la tonicité, des modèles sont mis au point de différentes manières et l'on prouve que tous permettent de reproduire la réponse type d'organismes quelconques à l'ingestion d'eau. La variété des modèles est dûe à des incertitudes sur la physiologie des reins et des hormones que ces modèles utilisent comme principe de départ.

Abstract: Zusammenfassung Kontroll-Modelle des Körperflüssigkeitsvolumens durch Tonus sind auf verschiedene Weisen entwickelt worden, und alle zeigen, daß es möglich ist, die charakteristische Antwort des Organismus auf Aufnahme von Wasser zu reproduzieren. Die Verschiedenheit der Modelle ist auf Unsicherheiten der zugrundeliegenden Nieren-und Hormonphysiologie zurückzuführen.

Notes: Abstract Control models of body fluid volume via tonicity are developed in several ways, and all are demonstrated to be able to reproduce the characteristic response of organisms to ingestion of water. The diversity of models is due to uncertainties in renal and hormonal physiology, on which they are based.