Immediate early gene (ZENK) responses to song in juvenile female and male zebra finches: Effects of rearing environmentWiley - Tập 66 Số 11 - Trang 1175-1182 - 2006
Michelle L. Tomaszycki, Emily M. Sluzas, Kristy A. Sundberg, Sarah Winans Newman, Timothy J. DeVoogd
AbstractAccurate song perception is likely to be as important for female songbirds as it is for male songbirds. Male zebra finches (Taeniopygia guttata) show differential ZENK expression to conspecific and heterospecific songs by day 30 posthatch in auditory perceptual brain regions such as the caudomedial nidopallium (NCM) and the caudom...... hiện toàn bộ
Neurotrophic control of 16S acetylcholinesterase from mammalian skeletal muscle in organ cultureWiley - Tập 11 Số 6 - Trang 557-570 - 1980
Hugo L. Fernández, Michael R. Patterson, Myron J. Duell
AbstractThe effects of rat obturator nerve extracts on total and 16S acetylcholinesterase (AChE) activity were studied in endplate regions of denervated anterior gracilis muscles maintained in organ culture for 48 hr. The decrease of total AChE activity in cultured muscles was similar to that observed in denervated muscles in vivo. This d...... hiện toàn bộ
Neurotrophic control of 16S acetylcholinesterase at the vertebrate neuromuscular junctionWiley - Tập 10 Số 5 - Trang 441-454 - 1979
Hugo L. Fernández, Myron J. Duell, Barry W. Festoff
AbstractEndplate 16S acetylcholinesterase (16S‐AChE) from rat anterior gracilis muscle was assessed, 6 hr to 10 days after denervation, by velocity sedimentation analysis on linear sucrose gradients. The innervating obturator nerve was transected either close (1‐2 mm, short stump) or far (35‐40 mm, long stump) from the muscle. In both instances, the activity of 16S...... hiện toàn bộ
Subcellular fractionation of cultured glial cellsWiley - Tập 2 Số 2 - Trang 169-180 - 1971
Carl W. Cotman, Harvey R. Herschman, Dwan A. Taylor
AbstractWe have studied the subcellular fractionation of a clonal line of glial cells from rat brain. In comparison to rat brain, more of the total protein is collected in the crude nuclear fraction following differential centrifugation. When a crude mitochondrial fraction is prepared and resolved on a density gradient, we find that like brain the glial cell crude ...... hiện toàn bộ
Seasonal regulation of NMDA receptor NR2B mRNA in the adult canary song systemWiley - Tập 54 Số 4 - Trang 593-603 - 2003
Tryambak Deo Singh, Julie E. Heinrich, Anne Marie Wissman, Eliot A. Brenowitz, Ernest J. Nordeen, Kathy W. Nordeen
AbstractDevelopmental changes in the composition and function of N‐methyl‐D‐aspartate receptors (NMDARs) are believed to regulate neural plasticity. For example, in songbirds, vocal learning entails NMDAR activation, and the sensitive period for such learning in zebra finches (ZFs) parallels developmental changes in NMD...... hiện toàn bộ
Seasonal changes in song nuclei and song behavior in Gambel's white‐crowned sparrowsWiley - Tập 28 Số 1 - Trang 114-125 - 1995
G. Troy Smith, Eliot A. Brenowitz, J. C. Wingfield, Luís F. Baptista
AbstractIn males of several songbird species, the morphology of forebrain nuclei that control song changes seasonally. The only seasonally breeding songbird in which seasonal changes in the structure of song control nuclei have been reported not to occur is the nonmigratory Nuttall's subspecies of white‐crowned sparrow. In the present study, we manipulated photoper...... hiện toàn bộ
Brain aromatase, 5α‐reductase, and 5β‐reductase change seasonally in wild male song sparrows: Relationship to aggressive and sexual behaviorWiley - Tập 56 Số 3 - Trang 209-221 - 2003
Kiran K. Soma, Barney A. Schlinger, John C. Wingfield, Colin J. Saldanha
AbstractIn many species, territoriality is expressed only during the breeding season, when plasma testosterone (T) is elevated. In contrast, in song sparrows (Melospiza melodia morphna), males are highly territorial during the breeding (spring) and nonbreeding (autumn) seasons, but not during molt (late summer). In autumn, plasma sex ster...... hiện toàn bộ