Effect ofl-dopa treatment on cerebral amino acid levels in rats after portocaval anastomosis

1981 ◽  
Vol 6 (6) ◽  
pp. 649-658 ◽  
Author(s):  
Giorgio Zanchin ◽  
Paolo Rigotti ◽  
Noemi Dussini ◽  
Fulvio Bettineschi ◽  
Paolo Vassanelli ◽  
...  
Keyword(s):  
Amino Acid ◽  
Portocaval Anastomosis ◽  
Amino Acid Levels

Cerebral amino acid levels and uptake in rats after portocaval anastomosis: I. Regional studies in vivo

1979 ◽  
Vol 4 (4) ◽  
pp. 301-310 ◽  
Author(s):  
Giorgio Zanchin ◽  
Paolo Rigotti ◽  
Noemi Dussini ◽  
Paolo Vassanelli ◽  
Leontino Battistin
Keyword(s):  
Amino Acid ◽  
Regional Studies ◽  
Portocaval Anastomosis ◽  
Amino Acid Levels

Cerebral amino acid levels and uptake in rats after portocaval anastomosis : I. Regional studies in vitro

1979 ◽  
Vol 4 (4) ◽  
pp. 291-299 ◽  
Author(s):  
Giorgio Zanchin ◽  
Paolo Rigotti ◽  
Fulvio Bettineschi ◽  
Paolo Vassanelli ◽  
Leontino Battistin
Keyword(s):  
Amino Acid ◽  
Regional Studies ◽  
Portocaval Anastomosis ◽  
Amino Acid Levels

scholarly journals Effects of amino acid levels during rearing on Cobb 500 slow-feathering broiler breeders: 1. Growth and development

2021 ◽  
pp. 101327
Author(s):  
Maria Camila Alfaro-Wisaquillo ◽  
Edgar O. Oviedo-Rondón ◽  
Hernan A. Cordova-Noboa ◽  
Justina V. Caldas ◽  
Gustavo A. Quintana-Ospina ◽  
...  
Keyword(s):  
Amino Acid ◽  
Growth And Development ◽  
Broiler Breeders ◽  
Amino Acid Levels

scholarly journals 88 Benefits of increasing amino acid intake in late gestation in prolific sows

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 76-76
Author(s):  
Ron Ball ◽  
Crystal L Levesque ◽  
D J Cadogan
Keyword(s):  
Birth Weight ◽  
Amino Acid ◽  
Reproductive Performance ◽  
Essential Amino Acid ◽  
Control Diet ◽  
Genetic Selection ◽  
Late Gestation ◽  
Negative Effects ◽  
Amino Acid Levels ◽  
The Many

Abstract Most sows are fed a constant energy and amino acid supply throughout gestation, in line with the recommendations of most authorities and swine genetic companies. These recommendations for sow feeding have seen little change in decades, despite the many ways that sows have changed dramatically in reproductive performance. Beginning in about the year 2000, sow litter size has steadily increased as a result of genetic selection. With this increase in litter number has been a steady decline in birth weight, and the resulting negative effects of lower birthweight on subsequent piglet performance. Many experiments using so-called ‘bump’ feeding, or increased energy intake in late gestation, have been conducted in attempts to arrest this decline in birthweight and piglet performance. Generally, these experiments have shown little to no improvement in birthweight and often have negative effects on sow feed intake during gestation. These experiments have ignored the fact that the energy:amino acid ratios (lysine, threonine, isoleucine, tryptophan) in late gestation are different than during early and mid-gestation. In recent research in Australia we hypothesised that rapidly increasing essential amino acid levels in late gestation would increase birth weight and potentially improve subsequent reproductive performance. Three hundred and thirty-four multiparous PIC sows (average parity 3.6, average LW 261 kg) were housed in a dynamic gestation pen after mating and randomly assigned to one of two diet regimes. Two 13.5 MJ/kg DE gestation diets were formulated and created by blending in an ESF. The Control diet contained 0.48 g SID lysine per MJ DE and SID threonine, methionine+ cysteine, isoleucine and tryptophan at 68%, 65%, 58% and18% of SID lysine and offered at 2.2kg/day from d 28 to d 110. Sow were then moved to the farrowing house and placed on a lactation diet at 3.5kg/d. The Treatment diet contained 0.55 g SID lysine/MJ DE and SID threonine, methionine+cysteine, isoleucine and tryptophan at 78%, 65%, 60% and 20% of SID lysine and offered at 2.1kg/d from d 28 to d 85 and then increased to 2.4 kg/d to d 110 d. Increasing essential amino acid levels in late gestation increased gestational weight gain (5.6 kg, P=0.004), increased total litter birth weight (1.25 kg, P=0.003), and increased the birthweight of liveborn pigs from 1.286 to 1.329 kg, (P=0.04). There was no significant effect on the total number born or born alive. Piglet performance is not available because this commercial farm practices cross-fostering. Effects of continuation of this feeding regime in the same sows during subsequent parities is currently being evaluated.

scholarly journals THE EFFECT OF GROWTH AND ADRENOCORTICOTROPIC HORMONES ON THE AMINO ACID LEVELS IN THE PLASMA

1949 ◽  
Vol 177 (1) ◽  
pp. 91-95 ◽  
Author(s):  
Choh.Hao. Li ◽  
I. Geschwind ◽  
Herbert M. Evans
Keyword(s):  
Amino Acid ◽  
Amino Acid Levels

scholarly journals Fetal sex modulates placental microRNA expression, potential microRNA-mRNA interactions, and levels of amino acid transporter expression and substrates: INFAT study subpopulation analysis of n-3 LCPUFA intervention during pregnancy and associations with offspring body composition

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Eva-Maria Sedlmeier ◽  
Dorothy M. Meyer ◽  
Lynne Stecher ◽  
Manuela Sailer ◽  
Hannelore Daniel ◽  
...  
Keyword(s):  
Body Composition ◽  
Amino Acid ◽  
Amino Acid Transporter ◽  
Microrna Expression ◽  
Sexually Dimorphic ◽  
Mrna Levels ◽  
Control Male ◽  
Cord Plasma ◽  
Amino Acid Levels ◽  
Acid Transporter

Abstract Background Previously, we revealed sexually dimorphic mRNA expression and responsiveness to maternal dietary supplementation with n-3 long-chain polyunsaturated fatty acids (LCPUFA) in placentas from a defined INFAT study subpopulation. Here, we extended these analyses and explored the respective placental microRNA expression, putative microRNA-mRNA interactions, and downstream target processes as well as their associations with INFAT offspring body composition. Results We performed explorative placental microRNA profiling, predicted microRNA-mRNA interactions by bioinformatics, validated placental target microRNAs and their putative targets by RT-qPCR and western blotting, and measured amino acid levels in maternal and offspring cord blood plasma and placenta. microRNA, mRNA, protein, and amino acid levels were associated with each other and with offspring body composition from birth to 5 years of age. Forty-six differentially regulated microRNAs were found. Validations identified differential expression for microRNA-99a (miR-99a) and its predicted target genes mTOR, SLC7A5, encoding L-type amino acid transporter 1 (LAT1), and SLC6A6, encoding taurine transporter (TauT), and their prevailing significant sexually dimorphic regulation. Target mRNA levels were mostly higher in placentas from control male than from female offspring, whereas respective n-3 LCPUFA responsive target upregulation was predominantly found in female placentas, explaining the rather balanced expression levels between the sexes present only in the intervention group. LAT1 and TauT substrates tryptophan and taurine, respectively, were significantly altered in both maternal plasma at 32 weeks’ gestation and cord plasma following intervention, but not in the placenta. Several significant associations were observed for miR-99a, mTOR mRNA, SLC7A5 mRNA, and taurine and tryptophan in maternal and cord plasma with offspring body composition at birth, 1 year, 3 and 5 years of age. Conclusions Our data suggest that the analyzed targets may be part of a sexually dimorphic molecular regulatory network in the placenta, possibly modulating gene expression per se and/or counteracting n-3 LCPUFA responsive changes, and thereby stabilizing respective placental and fetal amino acid levels. Our data propose placental miR-99, SLC7A5 mRNA, and taurine and tryptophan levels in maternal and fetal plasma as potentially predictive biomarkers for offspring body composition.

Effects of brainstem lesions on amino acid levels in the rat cochlear nucleus

2021 ◽  
Vol 403 ◽  
pp. 108187
Author(s):  
Donald. A Godfrey ◽  
William B. Farms ◽  
Sharon Polensek ◽  
Jon D. Dunn ◽  
Timothy G. Godfrey
Keyword(s):  
Amino Acid ◽  
Cochlear Nucleus ◽  
Brainstem Lesions ◽  
Amino Acid Levels

1594 Comparative effects of multiple sources of rumen-protected methionine on milk production and serum amino acid levels in midlactation dairy cows

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 775-775
Author(s):  
Y. Zang ◽  
S. Saed Samii ◽  
L. R. Tager ◽  
J. W. McFadden ◽  
K. M. Krause
Keyword(s):  
Amino Acid ◽  
Dairy Cows ◽  
Milk Production ◽  
Multiple Sources ◽  
Amino Acid Levels
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