PMID- 9510000 OWN - NLM STAT- MEDLINE DCOM- 19980428 LR - 20190701 IS - 0304-3940 (Print) IS - 0304-3940 (Linking) VI - 242 IP - 1 DP - 1998 Feb 6 TI - Difference in water intake but not in renal sympathetic nerve activity in response to central salt-loading or angiotensin II in awake Dahl salt-sensitive and -resistant rats. PG - 41-4 AB - Experiments were conducted to examine whether renal sympathetic nerve activity (RSNA) and water intake in response to central salt-loading or angiotensin II (A II) differ between freely-moving Dahl salt-sensitive (DS) and -resistant (DR) rats maintained on a low-salt diet. Intracerebroventricular (i.c.v.) administration of hypertonic saline (0.3 M, 1 microl/min, 20 min) or A II (100 ng/1 microl) evoked water intake, pressor response and suppression of RSNA in both strains. The cumulative water intake in DS rats over a 60-min period after i.c.v. infusion of hypertonic saline or A II was significantly attenuated compared with that in DR rats. The RSNA response did not show a significant difference between the strains. These results demonstrate that water intake, but not RSNA response to acute central salt-loading or A II differ between awake DR and DS rats. FAU - Kato, K AU - Kato K AD - Department of Physiology, Miyazaki Medical College, Japan. FAU - Saita, M AU - Saita M FAU - Ishizuka, Y AU - Ishizuka Y FAU - Nose, K AU - Nose K FAU - Kunitake, T AU - Kunitake T FAU - Hanamori, T AU - Hanamori T FAU - Kannan, H AU - Kannan H LA - eng PT - Comparative Study PT - Journal Article PL - Ireland TA - Neurosci Lett JT - Neuroscience letters JID - 7600130 RN - 0 (Saline Solution, Hypertonic) RN - 0 (Sodium Chloride, Dietary) RN - 11128-99-7 (Angiotensin II) SB - IM MH - Angiotensin II/administration & dosage/*pharmacology MH - Animals MH - Blood Pressure/drug effects MH - Drinking/*drug effects MH - Drinking Behavior/drug effects MH - Heart Rate/drug effects MH - Injections, Intraventricular MH - Kidney/drug effects/*innervation MH - Male MH - Rats MH - Rats, Inbred Strains MH - Saline Solution, Hypertonic/*administration & dosage MH - Sodium Chloride, Dietary/administration & dosage MH - Sympathetic Nervous System/*drug effects EDAT- 1998/03/24 00:00 MHDA- 1998/03/24 00:01 CRDT- 1998/03/24 00:00 PHST- 1998/03/24 00:00 [pubmed] PHST- 1998/03/24 00:01 [medline] PHST- 1998/03/24 00:00 [entrez] AID - S0304394098000056 [pii] AID - 10.1016/s0304-3940(98)00005-6 [doi] PST - ppublish SO - Neurosci Lett. 1998 Feb 6;242(1):41-4. doi: 10.1016/s0304-3940(98)00005-6.