Das Gef�ss-System der Rattenniere

Rollh�user, H.; Kriz, Wilhelm; Heinke, Wolfgang

doi:10.1007/bf00332430

Cited by 71 publications

(25 citation statements)

References 17 publications

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“…The fact that vasa recta fill with ink particles indicates that angiotensin may produce an almost complete occlusion of the branch vessels from efferent arterioles which supply the capillary networks ofsubcortex and outer medulla. Rollhauser, Kriz & Heinke (1964) described the anatomical separation of the capillary networks of the cortex, subcortex, outer medulla and inner medulla of the rat kidney, and showed that capillaries of the last three zones are supplied by branch vessels of the efferent arterioles of juxtamedullary glomeruli. In an attempt to confirm 238 INTRARENAL BLOOD FLOW IN THE RAT the specificity of the angiotensin-induced effect, aortic constriction was applied in order to reduce the total RBF, and hence ink content of the kidney.…”

Section: Discussionmentioning

confidence: 99%

The effect of angiotensin, noradrenaline and vasopressin on blood flow distribution in the rat kidney

Finberg¹,

Peart²

1972

The Journal of Physiology

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SUMMARY1. The effect of val5-angiotensin II amide, noradrenaline and vasopressin, on kidney volume and intrarenal distribution of carbon particles and thioflavine S was examined in the rat.2. Angiotensin produced a dose-dependent shrinkage of the kidney coinciding with the rise in systemic blood pressure. Noradrenaline and vasopressin, however, produced reduction in kidney volume only in much higher doses than were necessary to produce a pressor effect.3. An intravenous infusion of angiotensin sufficient to produce a diuretic response resulted in a striking increase in glomerular content of injected carbon particles, and a marked reduction in filling of the capillary plexuses of the subcortex and outer medulla. The reduction in outer medullary filling was also observed using the thioflavine S technique.4. Noradrenaline infused in amounts sufficient to produce diuresis, aortic constriction above the kidney and vasopressin injection produced no measurable change in carbon particle distribution.5. The reduction in capillary blood flow produced by angiotensin may result in impaired tubular reabsorptive capacity by reducing peritubular removal of reabsorbate, or by reducing oxygen availability. Thus the vasoconstrictor effects of angiotensin may explain its diuretic action.

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Section: Discussionmentioning

confidence: 99%

The effect of angiotensin, noradrenaline and vasopressin on blood flow distribution in the rat kidney

Finberg¹,

Peart²

1972

The Journal of Physiology

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“…1,2) [2,7,8,13,16,18,19]. Aglomerular vessels ('arteriolae rectae verae') are sparse, and have been shown to be frequently the result of a degeneration of the corresponding glomeruli [15].…”

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confidence: 99%

Structural Organization of Renal Medullary Circulation

Kriz

1982

Nephron

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“…Moffat and Fourman (1963) and Fourman and Moffat (1964) reported two pathways for the medullary circulation, one through arterial vasa recta and the other through capillary plexuses. In contrast, Rollhauser et al (1964) and Kriz et al (1976) described separate blood flows to and from each zone in the medulla, the outer medulla (outer and inner stripes), and the inner medulla. The present SEM study supports Rollhauser and Kriz's concept that each medullary zone is nourished through its own capillary network.…”

Section: The Inner Stripementioning

confidence: 81%

Blood supply and drainage of the outer medulla of the rat kidney: Scanning electron microscopy of microvascular casts

1984

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Blood supply and drainage of the outer medulla of the rat kidney were studied by scanning electron microscopy of vascular casts, using both arterial (n = 10) and venous (n = 10) injections of resin. Both outer and inner stripes of the outer medulla were supplied through different arterial capillary networks arising from efferent arterioles and arterial (descending) vasa recta. In contrast to previous studies using silicone rubber and light microscopy, a rich arterial capillary network supplying the outer stripe was demonstrated. Capillaries in the outer stripe and outer part of the inner stripe drained into venous vasa recta between vascular bundles, while capillaries in the inner part of the inner stripe drained into venous vasa recta within the bundles. The results indicate that each zone in the outer medulla is supplied through separate capillary networks. The demonstration of a rich capillary network in the outer stripe of the outer medulla suggests that the predilection of this zone for tubular necrosis with ischemic or toxic injury is not related to a sparse capillary blood supply.

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Das Gef�ss-System der Rattenniere

Cited by 71 publications

References 17 publications

The effect of angiotensin, noradrenaline and vasopressin on blood flow distribution in the rat kidney

The effect of angiotensin, noradrenaline and vasopressin on blood flow distribution in the rat kidney

Structural Organization of Renal Medullary Circulation

Blood supply and drainage of the outer medulla of the rat kidney: Scanning electron microscopy of microvascular casts

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