Di Maso, Nick A., Vincent J. Caiozzo, and Kenneth M. Baldwin. Single-fiber myosin heavy chain polymorphism during postnatal development: modulation by hypothyroidism. Am J Physiol Regulatory Integrative Comp Physiol 278: R1099–R1106, 2000.—The primary objective of this study was to follow the developmental time course of myosin heavy chain (MHC) isoform transitions in single fibers of the roden...

Gebber, Gerard L., Sheng Zhong, Craig Lewis, and Susan M. Barman. Defenselike patterns of spinal sympathetic outflow involving the 10-Hz and cardiac-related rhythms. Am J Physiol Regulatory Integrative Comp Physiol 278: R1616–R1626, 2000.—Frequencyand time-domain analyses were used to compare the effects of stimulation of the defense region of the midbrain periaqueductal gray (PAG) on the 10-Hz...

Jonassen, Thomas E. N., Dominique Promeneur, Sten Christensen, Jørgen S. Petersen, and Søren Nielsen. Decreased vasopressin-mediated renal water reabsorption in rats with chronic aldosterone-receptor blockade. Am. J. Physiol. Renal Physiol. 278: F246–F256, 2000.—Previous studies have suggested that mineralocorticoids are needed for a normal action of vasopressin on collecting duct osmotic water...

Brand, Paul H., Nianning Qi, Patricia J. Metting, and Steven L. Britton. A self-powered constant infusion device for use in unrestrained rats. Am J Physiol Heart Circ Physiol 278: H2157–H2162, 2000.—We developed a device that delivers fluid through a catheter at a constant rate and can be used in conscious animals to solve a variety of problems. For example, this device can be used for deliveri...

Guo, Zhi-Ling, and John C. Longhurst. Role of cAMP in activation of ischemically sensitive abdominal visceral afferents. Am. J. Physiol. Heart Circ. Physiol. 278: H843–H852, 2000.—A number of metabolites produced during abdominal ischemia can stimulate and/or sensitize visceral afferents. The precise mechanisms whereby these metabolites act are uncertain. Other studies have shown that the adeny...

STEPHEN D. MCCORMICK,1 SHUNSUKE MORIYAMA,2 AND B. THRANDUR BJÖRNSSON3 1Conte Anadromous Fish Research Center, Biological Resources Division, US Geological Survey, Turners Falls, Massachusetts 01376; 2Laboratory of Molecular Endocrinology, School of Fisheries, Kitasato University, Sanriku, Iwate, Japan; and 3Fish Endocrinology Laboratory, Department of Zoology, Göteborg University, Göteborg, Sweden

Stephenson, Richard, Ravi M. Mohan, James Duffin, and Tim M. Jarsky. Circadian rhythms in the chemoreflex control of breathing. Am. J. Physiol. Regulatory Integrative Comp. Physiol. 278: R282–R286, 2000.—Mechanisms underlying the circadian rhythm in lung ventilation were investigated. Ten healthy male subjects were studied for 36 h using a constant routine protocol to minimize potentially confo...

Boudreau-Larivière, Céline, David J. Parry, and Bernard J. Jasmin. Myotubes originating from single fast and slow satellite cells display similar patterns of AChE expression. Am. J. Physiol. Regulatory Integrative Comp. Physiol. 278: R140–R148, 2000.—Slowand fast-contracting skeletal muscles of both rats and mice display significant differences in their patterns of acetylcholinesterase (AChE) e...

Gustafson, Corinne E., Toshiya Katsura, Mary McKee, Richard Bouley, James E. Casanova, and Dennis Brown. Recycling of AQP2 occurs through a temperatureand bafilomycin-sensitive trans-Golgi-associated compartment. Am. J. Physiol. Renal Physiol. 278: F317–F326, 2000.—The exoand endocytotic pathway in which aquaporin-2 (AQP2) travels between the plasma membrane and intracellular vesicles is only p...

Thrasher, Terry N., Hong-Gen Chen, and Lanny C. Keil. Arterial baroreceptors control plasma vasopressin responses to graded hypotension in conscious dogs. Am. J. Physiol. Regulatory Integrative Comp. Physiol. 278: R469– R475, 2000.—We studied the role of cardiac and arterial baroreceptors in the reflex control of arginine vasopressin (AVP) and renin secretion during graded hypotension in consci...