Sympathetic activity in early renal posttransplantation hypertension in rats.

@article{Grisk2000SympatheticAI,
  title={Sympathetic activity in early renal posttransplantation hypertension in rats.},
  author={Olaf Grisk and B A Frey and Amanda M. Uber and Richard A. Rettig},
  journal={American journal of physiology. Regulatory, integrative and comparative physiology},
  year={2000},
  volume={279 5},
  pages={
          R1737-44
        }
}
  • O. Grisk, B. Frey, +1 author R. Rettig
  • Published 1 November 2000
  • Biology, Medicine
  • American journal of physiology. Regulatory, integrative and comparative physiology
The contribution of elevated sympathetic activity to the development of renal posttransplantation hypertension was investigated. F1 hybrids (F1H) from spontaneously hypertensive rats (SHR) and Wistar-Kyoto rats (WKY) were transplanted with either an SHR or an F1H kidney and bilaterally nephrectomized. Three weeks after transplantation, sympathetic activity was assessed by measuring adrenal tyrosine hydroxylase (TH) mRNA content and recording splanchnic nerve activity (SNA) in conscious animals… 
Long-term arterial pressure in spontaneously hypertensive rats is set by the kidney
TLDR
In SHR, arterial Pressure can be normalized by a kidney graft from normotensive histocompatible donors and the genetic predisposition of the recipients to hypertension does not modify the rate and the extent of the arterial pressure rise induced by an SHR kidney graft.
Sympathetic-renal interaction in chronic arterial pressure control.
TLDR
Generalized reduction in sympathetic tone resets the kidney-fluid system to reduced MAP and blunts the extent of arterial pressure rise induced by an SHR kidney graft.
Analysis of arterial pressure regulating systems in renal post-transplantation hypertension
TLDR
It is concluded that post-transplantation hypertension in recipients of an SHR kidney is due to mechanisms other than those investigated in the present study, which could be involved in the genesis of this form of hypertension.
Sympatho‐renal interactions in the determination of arterial pressure: role in hypertension
  • O. Grisk
  • Medicine, Biology
    Experimental physiology
  • 2005
TLDR
It is concluded that chronic non‐adapting changes in sympathetic activity modulate the degree to which renal mechanisms can cause hypertension in SHRs.
Renal Transplantation Studies in Genetic
TLDR
These findings, which were the results of animal experiments and mathematical modeling, contributed to direct attention to renal physiology and pathophysiology in the field of hypertension research.
The kidney as a determinant of genetic hypertension: evidence from renal transplantation studies.
TLDR
The results and implications of clinical and experimental renal transplantation studies in primary hypertension in humans and genetic hypertension in animals that have been published to date are discussed.
Mechanisms of blood pressure variability-induced cardiac hypertrophy and dysfunction in mice with impaired baroreflex.
TLDR
More frequent blood pressure rises in subjects with high blood pressure variability activate mechanosensitive and autocrine pathways leading to cardiac hypertrophy and dysfunction even in the absence of hypertension.
Frequency modulation of mesenteric and renal vascular resistance.
  • O. Grisk, H. Stauss
  • Biology, Medicine
    American journal of physiology. Regulatory, integrative and comparative physiology
  • 2002
TLDR
Frequency modulation of low-frequency vasomotions in individual vascular beds does not cause significant blood pressure oscillations at additional frequencies, and the data suggest that sympathetic modulation of mesenteric vascular resistance can initiate blood pressurescillations at slightly higher frequencies than sympathetic stimulation of renal vascular resistance.
...
1
2
...

References

SHOWING 1-10 OF 43 REFERENCES
The development of post-transplantation hypertension in recipients of an SHR kidney is independent of reinnervation of the graft
TLDR
It is concluded that post-transplantation hypertension in recipients of an SHR kidney does not depend on sympathetic reinnervation of the graft.
Role of the kidney in primary hypertension: a renal transplantation study in rats.
TLDR
The data support the hypothesis that SHR kidneys carry a primary defect, which can induce hypertension in renal graft recipients, and conclude that posttransplantation hypertension in recipients of SHR kidney grafts also develops, when the grafts have not been subjected to high renal perfusion pressure before transplantation.
Renal sympathetic activity in spontaneously hypertensive rats and normotensive controls, as studied by three different methods.
TLDR
The increased renal sympathetic activity appears to reflect the "primary" central nervous "hyperreactivity" characterizing SHR hypertension and may be of particular importance for the development of primary hypertension in SHR and perhaps also in man.
Sodium retention and hypertension after kidney transplantation in rats.
TLDR
Investigation of the development of blood pressure and renal sodium handling in recipients of renal grafts from adult stroke-prone spontaneously hypertensive rats, normotensive Wistar-Kyoto (WKY) rats, and borderline hypertensive F1 hybrids bred from SHRSP and WKY rats found that the accumulating amount of sodium retained by the renal graft was significantly higher in recipient of an ShRSP kidney than in receiving of a WKY rat kidney at all days on the high salt diet.
Source of kidney determines blood pressure in young renal transplanted rats.
TLDR
Hypertension can be transmitted to normotensive recipients by transplantation of a kidney from young prehypertensive SHRSP donors and the age-related increase in arterial pressure in F1H is attenuated by early bilateral nephrectomy and transplantations of a WKY kidney.
Effects of kidney transplantation on the renin-angiotensin systems of the recipients.
TLDR
It is concluded that renal transplantation has profound long-term effects on the recipients' plasma and local kidney renin-angiotensin systems, which do not appear to be involved in the pathogenesis of post-transplantation hypertension in recipients of an SHRSP kidney, but may reflect a role for the intrarenal ren in-ang Elliotensin system in long- term renal adaptation and repair processes after transplantation.
Glomerular injury in uninephrectomized spontaneously hypertensive rats. A consequence of glomerular capillary hypertension.
TLDR
Protein restriction prevented the development of increased delta P in UNX SHR (group 8) and also conferred long-term protection from increased urinary protein excretion and glomerular injury in this model of hypertension with reduced renal mass.
Kidneys from normotensive donors lower blood pressure in young transplanted spontaneously hypertensive rats.
TLDR
The hypothesis that hypertension in renal-transplanted SHR depends in part on the genetic background of the transplanted kidney is supported.
Renal sympathetic neural mechanisms as intermediate phenotype in spontaneously hypertensive rats.
TLDR
Enhanced renal sympathoexcitation with air-jet stress and enhanced renal sympathoinhibition with guanabenz cosegregated with the hypertension support renal sympathetic neural mechanisms as an intermediate phenotype in SHR.
Both brain angiotensin II and "ouabain" contribute to sympathoexcitation and hypertension in Dahl S rats on high salt intake.
TLDR
The present data indicate that in Dahl S on high salt, both brain "ouabain" and angiotensin II contribute to decreased sympathoinhibition and increased sympathoexcitation, impairment of baroreflex, and therefore hypertension.
...
1
2
3
4
5
...