Stevens, Randel J., Jeffery S. Weinert, and Nelson G. Publicover. Visualization of origins and propagation of excitation in canine gastric smooth muscle. Am. J. Physiol. 277 (Cell Physiol. 46): C448–C460, 1999.—The origin and spread of excitation were visualized with fluo 3 fluorescence in tissues isolated from canine gastric antrum. Sheets of circular muscle (5 3 6 mm) had at least 1 (30%) and...

Firth, Bruce T., Ingrid Belan, David J. Kennaway, and Robert W. Moyer. Thermocyclic entrainment of lizard blood plasma melatonin rhythms in constant and cyclic photic environments. Am. J. Physiol. 277 (Regulatory Integrative Comp. Physiol. 46): R1620–R1626, 1999.—We assessed how chronic exposure to 6-h cryophase temperatures of 15°C in an otherwise 33°C environment entrains the rhythm of blood ...

De Paula, Patrı́cia M., Jaci A. Castania, Leni G. H. Bonagamba, Hélio C. Salgado, and Benedito H. Machado. Hemodynamic responses to electrical stimulation of the aortic depressor nerve in awake rats. Am. J. Physiol. 277 (Regulatory Integrative Comp. Physiol. 46): R31–R38, 1999.—Changes in mean arterial pressure (MAP), heart rate (HR), and vascular resistance (hindquarter and mesenteric territori...

Burgess, Don E., Tabitha A. Zimmerman, Marshall T. Wise, Sheng-Gang Li, David C. Randall, and David R. Brown. Low-frequency renal sympathetic nerve activity, arterial BP, stationary ‘‘1/f noise,’’ and the baroreflex. Am. J. Physiol. 277 (Regulatory Integrative Comp. Physiol. 46): R894–R903, 1999.—The object of this study is to quantify the very low frequency (i.e., ,0.1 Hz) interactions between...

Thrasher, Terry N., Craig R. Keenan, and David J. Ramsay. Cardiovascular afferent signals and drinking in response to hypotension in dogs. Am. J. Physiol. 277 (Regulatory Integrative Comp. Physiol. 46): R795–R801, 1999.— Arterial hypotension stimulates increases in plasma arginine vasopressin (AVP), plasma renin activity (PRA), and water intake in conscious dogs. We have previously reported tha...

Wu, Xiao Chun, Peter J. Harris, and Edward J. Johns. Nitric oxide and renal nerve-mediated proximal tubular reabsorption in normotensive and hypertensive rats. Am. J. Physiol. 277 (Renal Physiol. 46): F560–F566, 1999.—In Inactin-anesthetized Wistar rats with an intact renal innervation, intratubular nitro-L-arginine methyl ester (L-NAME, 1024 M) increased proximal fluid uptake (Jva, at 2.47 6 0...

Pinsky, David J., Walif Aji, Matthias Szabolcs, Eleni S. Athan, Youping Liu, Yi Ming Yang, Richard P. Kline, Kim E. Olson, and Paul J. Cannon. Nitric oxide triggers programmed cell death (apoptosis) of adult rat ventricular myocytes in culture. Am. J. Physiol. 277 (Heart Circ. Physiol. 46): H1189–H1199, 1999.—Excessive nitric oxide (NO) production within the heart is implicated in the pathogene...

Nagayama, Takahiro, Takayuki Matsumoto, Makoto Yoshida, Mizue Suzuki-Kusaba, Hiroaki Hisa, Tomohiko Kimura, and Susumu Satoh. Role of cholinergic receptors in adrenal catecholamine secretion in spontaneously hypertensive rats. Am. J. Physiol. 277 (Regulatory Integrative Comp. Physiol. 46): R1057–R1062, 1999.—We investigated the role of nicotinic and muscarinic receptors in secretion of catechol...

Boutellier, Sandra, Thomas A. Lutz, Matthias Volkert, and Erwin Scharrer. 2-Mercaptoacetate, an inhibitor of fatty acid oxidation, decreases the membrane potential in rat liver in vivo. Am. J. Physiol. 277 (Regulatory Integrative Comp. Physiol. 46): R301–R305, 1999.—In former work, intraperitoneal injection of 2-mercaptoacetate (MA), an inhibitor of fatty acid oxidation, increased food intake i...

Nelson, Dwight E., and Joseph S. Takahashi. Integration and saturation within the circadian photic entrainment pathway of hamsters. Am. J. Physiol. 277 (Regulatory Integrative Comp. Physiol. 46): R1351–R1361, 1999.—The sensitivity of the visual pathway that subserves circadian entrainment was measured in hamsters after prior stimulation and using trains of multiple pulses. Immediately after sub...