The Vascular Pole Of The Renal Glomerulus Of Rat by Marlies ElgerThe Vascular Pole Of The Renal Glomerulus Of Rat by Marlies Elger

The Vascular Pole Of The Renal Glomerulus Of Rat

byMarlies Elger, Tatsuo Sakai, Wilhelm Kriz

Paperback | October 10, 1997

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Glomerular flltration represents one of the basic mechanisms in the function of an organism. Our understanding of this process is still quite fragmentary. Regulation of blood flow and pressure, together with regulation of the ultraflltration coefficient (which is an attribute of the flltration barrier), are the two fundamental mechanisms accounting for maintenance and adaptability of glomerular flltration. Regulation of glomerular blood flow is generally considered to result from an interplay between afferent and efferent glomerular arterioles, and much progress has been made recently in understanding this interplay (Navar et al. 1996). The present study provides a detailed structural description of the glomerular vascular pole of rat. The results of this study appear to be relevant for several open questions of glomerular function. First, the interaction between afferent and efferent arterioles in regulating glomerular blood is generally understood to occur between the preglomerular and the postglomerular portions of these vessels. As shown in the present study, the structural elaborations of these arterioles and the spatial relationships between them within the glomerular hilum strongly suggest an interplay also at this site. Moreover, the current understanding of glomerular blood flow regulation by tuning the interplay between afferent and efferent arterioles is exclusively based on signals whose regulatory loops are established in follow-up events outside the glomerulus (tubuloglomerular balance, tubuloglomerular feedback).
Title:The Vascular Pole Of The Renal Glomerulus Of RatFormat:PaperbackDimensions:98 pages, 23.5 × 15.5 × 0.01 inPublished:October 10, 1997Publisher:Springer Nature

The following ISBNs are associated with this title:

ISBN - 10:3540632417

ISBN - 13:9783540632412

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Table of Contents

1 Introduction.- 2 Material and Methods.- 3 Results.- 3.1 The Opening in Bowman's Capsulex.- 3.1.1 Transition of the GMB into the PBM.- 3.1.2 Transition from Podocytes to Parietal Cells.- 3.2 Glomerular Arterioles.- 3.2.1 Afferent Arteriole.- 3.2.2 Efferent Arteriole.- 3.3 Extraglomerular Mesangium.- 3.3.1 EGM Cells.- 3.3.2 EGM Matrix.- 3.3.3 EGM Relationships to Neighboring Structures.- 3.3.4 Glomerular Stalk.- 4 Discussion.- 4.1 Stabilization of the Vascular Pole.- 4.2 Regulation of Glomerular Blood Flow and Filtration.- 4.3 Integration of Vascular Pole Structures into the Juxtaglomerular Apparatus.- 4.4 Fluid Leakage Through the Glomerular Stalk.- 5 Summary.- References.