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10.1161/HYPERTENSIONAHA.114.03609 http://scihub22266oqcxt.onion/10.1161/HYPERTENSIONAHA.114.03609 C4162752!4162752 !24958497     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=24958497 &cmd=llinks): Failed to open stream: HTTP request failed! 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Critical blood pressure threshold dependence of hypertensive injury and repair in a malignant nephrosclerosis model |pdf=|usr=}}{{24958497 }} gab.com Text Critical blood pressure threshold dependence of hypertensive injury and repair in a malignant nephrosclerosis model JO: Hypertension http://www.kidney.de/pget.php?&tw=1&pmid=24958497 #FOAvip Most patients with essential hypertension do not exhibit substantial renal damage. Renal autoregulation by preventing glomerular transmission of systemic pressures has been postulated to mediate this resistance. Conversely, malignant nephrosclerosis (MN) has been postulated to develop when severe hypertension exceeds a critical ceiling. If the concept is valid, even modest blood pressure (BP) reductions to below this threshold regardless of antihypertensive class (1) should prevent MN and (2) lead to the healing of the already developed MN lesions. Both predicates were tested using BP radiotelemetry in the stroke-prone spontaneously hypertensive rats receiving 1% NaCl as drinking fluid for 4 weeks. Severe hypertension (final 2 weeks average systolic BP, >200 mm Hg) and MN (histological damage score 36±5; n=27) developed in the untreated stroke-prone spontaneously hypertensive rats but were prevented by all antihypertensive classes (enalapril [n=15], amlodipine [n=13], or a hydralazine/hydrochlorothiazide combination [n=15]) if the final 2-week systolic BP remained <190 mm Hg. More impressively, modest systolic BP reductions to 160 to 180 mm Hg (hydralazine/hydrochlorothiazide regimen) initiated at ?4 weeks in additional untreated rats after MN had already developed (injury score 35±4 in the right kidney removed before therapy) led to a striking resolution of the vascular and glomerular MN injury over 2 to 3 weeks (post-therapy left kidney injury score 9±2, P<0.0001; n=27). Proteinuria also declined rapidly from 122±9.5 mg/24 hours before therapy to 20.5±3.6 mg 1 week later. These data clearly demonstrate the barotrauma-mediated pathogenesis of MN and the striking capacity for spontaneous and rapid repair of hypertensive kidney damage if new injury is prevented. Twit Text FOAVip Critical blood pressure threshold dependence of hypertensive injury and repair in a malignant nephrosclerosis model ????Hypertension http://www.kidney.de/pget.php?&tw=1&pmid=24958497 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=24958497 #FOAvip English Wikipedia <ref>{{Cite pmid|24958497 }}</ref> Critical blood pressure threshold dependence of hypertensive injury and repair in a malignant nephrosclerosis model #MMPMID24958497 Griffin KA ; Polichnowski A ; Litbarg N ; Picken M ; Venkatachalam MA ; Bidani AK Hypertension 2014[Oct]; 64 (4 ): 801-7 PMID24958497 show ga Most patients with essential hypertension do not exhibit substantial renal damage. Renal autoregulation by preventing glomerular transmission of systemic pressures has been postulated to mediate this resistance. Conversely, malignant nephrosclerosis (MN) has been postulated to develop when severe hypertension exceeds a critical ceiling. If the concept is valid, even modest blood pressure (BP) reductions to below this threshold regardless of antihypertensive class (1) should prevent MN and (2) lead to the healing of the already developed MN lesions. Both predicates were tested using BP radiotelemetry in the stroke-prone spontaneously hypertensive rats receiving 1% NaCl as drinking fluid for 4 weeks. Severe hypertension (final 2 weeks average systolic BP, >200 mm Hg) and MN (histological damage score 36±5; n=27) developed in the untreated stroke-prone spontaneously hypertensive rats but were prevented by all antihypertensive classes (enalapril [n=15], amlodipine [n=13], or a hydralazine/hydrochlorothiazide combination [n=15]) if the final 2-week systolic BP remained <190 mm Hg. More impressively, modest systolic BP reductions to 160 to 180 mm Hg (hydralazine/hydrochlorothiazide regimen) initiated at ?4 weeks in additional untreated rats after MN had already developed (injury score 35±4 in the right kidney removed before therapy) led to a striking resolution of the vascular and glomerular MN injury over 2 to 3 weeks (post-therapy left kidney injury score 9±2, P<0.0001; n=27). Proteinuria also declined rapidly from 122±9.5 mg/24 hours before therapy to 20.5±3.6 mg 1 week later. These data clearly demonstrate the barotrauma-mediated pathogenesis of MN and the striking capacity for spontaneous and rapid repair of hypertensive kidney damage if new injury is prevented. |*Disease Models, Animal [MESH] |Amlodipine/pharmacology [MESH] |Animals [MESH] |Antihypertensive Agents/pharmacology [MESH] |Blood Pressure/drug effects/*physiology [MESH] |Drug Therapy, Combination [MESH] |Enalapril/pharmacology [MESH] |Humans [MESH] |Hydralazine/pharmacology [MESH] |Hydrochlorothiazide/pharmacology [MESH] |Hypertension/*physiopathology/prevention & control [MESH] |Male [MESH] |Nephrosclerosis/*physiopathology/prevention & control [MESH] |Rats [MESH] |Rats, Inbred SHR [MESH] |Reference Values [MESH]Critical blood pressure threshold dependence of hypertensive injury an(epmc).pdf DeepDyve Pubget Overpricing