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Clinical and Experimental Hypertension Volume 32, 2010 - Issue 8
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Research Articles

Acute Obstructive Apnea Produces Natriuresis in Spontaneously Hypertensive Rats (SHR) by a Renal Nerve-Dependent

Tadeu U. Andrade Department of Pharmacy, University Center of Vila Velha, Vila Velha, Brazil
,
João V. M. Franquini Department of Pharmacy, University Center of Vila Velha, Vila Velha, Brazil
,
Antônio M. Cabral Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
,
Elisardo C. Vasquez Department of Physiology, Federal University of Espirito Santo, Vitoria, Brazil
,
Maria T. Araújo Department of Physiology, Federal University of Espirito Santo, Vitoria, Brazil
,
Margareth R. Moysés Department of Physiology, Federal University of Espirito Santo, Vitoria, Brazil
,
Gláucia R. Abreu Department of Physiology, Federal University of Espirito Santo, Vitoria, Brazil
&
Nazare S. Bissoli Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, BrazilCorrespondencenaza@@npd.ufes.br
 show all
Pages 555-559 | Received 12 Nov 2009, Accepted 29 Mar 2010, Published online: 23 Nov 2010
 
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Abstract

The role of renal nerve in excretion was investigated during acute obstructive apnea (OA) episodes in SHR. The animals (SHR and control, C) were presented for renal denervation (D; CD; SHRD) or undenervation (U; CU; SHRU). Tracheal catheterization was performed to induce OA via its total occlusion. Urine samples were collected every 2 min after 20 s of OA. Obstructive apnea resulted in bradycardia, hypotension, and induced elevations in the urinary measurements in SHRU, but not in CU. Conversely, the denervation increased in CD, but not in the SHRD. Urinary excretion was dependent of renal nerve in SHR during OA

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