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Ikeda H, Han G, Chowdhury VS, Furuse M. Differential energy expenditure is involved in the difference in activity levels between the Djungarian hamster (Phodopus sungorus) and the Roborovskii hamster (P. roborovskii). Physiol Behav 2023; 268:114230. [PMID: 37169121 DOI: 10.1016/j.physbeh.2023.114230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023]
Abstract
The Djungarian hamster (Phodopus sungorus) shows calm behavior, while the Roborovskii hamster (P. roborovskii) exhibits hyperactivity. Even though they belong to the same genus, Phodopus, these two species are quite different. The current study investigated the relationship between energy expenditure and the markedly different levels of activity shown by these hamsters. Roborovskii hamsters showed significantly higher energy expenditure than Djungarian hamsters under both feeding and fasting conditions during darkness. Roborovskii hamsters showed a repeated increase and decrease in energy expenditure under the feeding condition; however, this changed under the fasting condition, during which the repeated increase and decrease in energy expenditure corresponded to the repeated active and sleeping conditions. Djungarian hamsters had a tendency to keep their energy expenditure constant during the fasting condition, while Roborovskii hamsters moved around a lot to find food. The respiratory quotient (RQ) values in Djungarian hamsters were relatively constant. However, Roborovskii hamsters showed a wide variation in RQ. In particular, the RQ value declined immediately before a dark phase commenced, indicating a switchover from the utilization of glucose to that of lipids as a substrate for energy production. In conclusion, Djungarian hamsters and Roborovskii hamsters showed different behavioral patterns that were related to differences in energy metabolism.
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Affiliation(s)
- Hiromi Ikeda
- Department of Applied Biological Science, Faculty of Agriculture, Setsunan University, Osaka, 573-0101, Japan.
| | - Guofeng Han
- Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Vishwajit S Chowdhury
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
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Eltahan HM, Kang CW, Chowdhury VS, Eltahan HM, Abdel-Maksoud MA, Mubarak A, Lim CI. Cold Drinking Water Boosts the Cellular and Humoral Immunity in Heat-Exposed Laying Hens. Animals (Basel) 2023; 13:ani13040580. [PMID: 36830366 PMCID: PMC9951739 DOI: 10.3390/ani13040580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/19/2023] [Accepted: 01/31/2023] [Indexed: 02/10/2023] Open
Abstract
This study aimed to investigate the effects of cold drinking water on cellular and humoral immunity in heat-exposed laying hens. One hundred and eight laying hens at 19 weeks old were placed into three treatments with six replicates of six hens in each group as follows: (1) hens were provided with normal drinking water (NW) under the control of thermoneutral temperature (CT: 25 ± 1 °C; CT + NW), (2) hens were provided with NW under high ambient temperature (HT: 35 ± 1 °C; HT + NW) for 8 h/d for a month, and (3) hens were treated under HT with cold drinking water (CW: 15 ± 1 °C; HT + CW) for 8 h/d for a 4-weeks. Then, the feed consumption, egg production, egg weight, feed conversion ratio, and blood immune parameters were investigated. The results showed that cold drinking water (CW) caused a significant (p < 0.05) recovery in the reduction of food intake and egg production due to heat stress; however, there was no significant effect (p > 0.05) on egg weight and feed conversion ratio. Moreover, CW significantly (p < 0.05) restored the immune-suppressing effects of heat stress on the contents of peripheral blood mononuclear cells, including B-cell (BU-Ia), helper T cell (CD4), and the ratio of helper/cytotoxic T cell (CD4/CD8). In addition, CW significantly (p < 0.05) recovered the reduction on the level of mRNA expression of interleukin-2 (IL-2) and interferon-gamma (IFN-γ), as well as significantly (p < 0.05) restored the reduction of plasma concentration of IL-2, IFN-γ and immunoglobulin G in heat-stressed laying hens. These results prove that CW increased heat dissipation and enhanced feed intake, egg production, and cellular and humoral immunity in heat-exposed laying hens.
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Affiliation(s)
- Hatem M. Eltahan
- Animal Production Research Institute, Agriculture Research Center, Agriculture Ministry, Sakha, Kafr El-Sheikh 33717, Egypt
- Postdoc at the Department of Animal Science, Jeonbuk National University, Jeonju 54896, Republic of Korea
- Correspondence: (H.M.E.); (C.I.L.); Tel.: +20-1005122758 (H.M.E.); +82-63-270-2638 (C.I.L.); Fax: +82-63-270-2612 (C.I.L.)
| | - Chang W. Kang
- College of Veterinary Medicine, Jeonbuk National University, Jeonju 54596, Republic of Korea
| | - Vishwajit S. Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Hossam M. Eltahan
- Animal Production Research Institute, Agriculture Research Center, Agriculture Ministry, Sakha, Kafr El-Sheikh 33717, Egypt
| | - Mostafa A. Abdel-Maksoud
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ayman Mubarak
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Chun Ik Lim
- Poultry Research Institute, National Institute of Animal Science, RDA, Pyeongchang 25342, Republic of Korea
- Correspondence: (H.M.E.); (C.I.L.); Tel.: +20-1005122758 (H.M.E.); +82-63-270-2638 (C.I.L.); Fax: +82-63-270-2612 (C.I.L.)
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Nishimura S, Yamahira S, Chowdhury VS, Hosaka YZ. Effects of different coating materials on the morphological characteristics of chicken adenohypophyseal folliculo-stellate cells in vitro. Anim Sci J 2023; 94:e13814. [PMID: 36752108 DOI: 10.1111/asj.13814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 01/09/2023] [Accepted: 01/26/2023] [Indexed: 02/09/2023]
Abstract
Chicken adenohypophyseal cells were cultured in plates coated with different materials, and their morphologies were examined to confirm the characteristics of chicken folliculo-stellate (FS) cells in vitro. The adenohypophyseal cells were dispersed with a collagenase/trypsin mixture in media and seeded in plates coated in either poly L-lysine (PLL), collagen, or laminin. After 7 days of culture, the cells were fixed and immunocytochemistry was performed. 5-Bromo-2'-deoxyuridine incorporation test indicated that the proliferation activity of the culture cells was different based on the coating materials, and it was higher in the collagen-coated plate than two other coating materials. Fluorescence immunocytochemistry was also performed using mixed antibodies against growth hormone, prolactin, luteinizing hormone β-subunit, basic cytokeratin (bCK), and S100B. The culture cells on the PLL- and laminin-coated surfaces were round or oval in shape, and bCK-immunopositive FS cells were morphologically indistinguishable from endocrine cells. In the collagen-coated plate, many endocrine cells were round or oval in shape, but FS cells displayed a larger and flattened morphology. S100B-immunoreactions were localized in the nuclei of bCK-immunopositive FS cells. These results suggest that culturing the chicken adenohypophyseal cells in the collagen-coated plate enables the distinction of FS cells from endocrine cells.
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Chowdhury VS. L-Citrulline: A novel hypothermic amino acid promoting thermotolerance in heat-exposed chickens. Anim Sci J 2023; 94:e13826. [PMID: 36938778 DOI: 10.1111/asj.13826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/10/2023] [Accepted: 03/02/2023] [Indexed: 03/21/2023]
Abstract
With global warming becoming of increasing concern, poultry farms are experiencing a concomitant increase in heat stress. Chickens are very sensitive to high ambient temperature (HT), so the development of novel nutrients that will help deal with the challenge posed by heat stress is vital. We revealed that L-citrulline (L-Cit) can reduce body temperature in chickens. Orally administered L-Cit solution has been found to provide heat tolerance in chickens and to result in reduced food intake. Heat exposure and oral administration of L-Cit led to increased levels of plasma insulin, whereas heat stress led to a decline in plasma thyroxine. Dietary administration of L-Cit was also shown to be effective to reduce heat stress in broiler chickens. Moreover, L-Cit was found to be metabolized in the liver within 1 h of its administration, and in L-Cit-treated broiler chicks, the Cit-Arginine cycle and the Krebs cycle were found to be active. L-Cit has not yet been approved for inclusion in the poultry diet, so it is important to find alternative sources of L-Cit. Taken together, these findings suggest that L-Cit may serve as an important novel nutrient with the ability to produce heat tolerance in chickens under HT.
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Affiliation(s)
- Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Department of Animal and Marine Bioresource Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
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Han G, Li S, Li Y, Tran PV, Furuse M, Bungo T, Chowdhury VS, Bai Z, Li C. Thermal manipulation modifies embryonic growth, hepatic free amino acid concentrations, and hatching performance in layer-type chicks. Front Vet Sci 2022; 9:1049910. [PMID: 36467658 PMCID: PMC9716202 DOI: 10.3389/fvets.2022.1049910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 10/19/2022] [Indexed: 11/21/2023] Open
Abstract
Thermal manipulation (TM) of incubation temperature has been demonstrated to alter metabolism and post-hatch thermotolerance in broiler strains (meat-type chickens). Fewer reports were focused on layer-type chickens and there was no report on amino acid metabolism during TM in layer-type embryos. In this study, we investigated the effects of TM on embryonic development, hepatic amino acid metabolism, and hatching performance in layer-type chickens. Fertilized eggs were incubated under control thermoneutral temperature (CT, 37.6°C) and TM with high temperature (TMH, 39°C, 8 h/day) or low temperature (TML, 20°C, 1 h/day) from embryonic day (ED) 8 to ED 15. The embryonic weight and relative embryonic weight (yolk-free embryonic weight to the initial egg weight) significantly declined in the TML group at ED 13 (P < 0.01) and ED 16 (P < 0.0001), and were significantly increased (P < 0.001) in the TMH group at ED 16, in comparison with the embryos in the CT group. The concentrations of all hepatic free amino acids were significantly increased (P < 0.01) with embryonic development. Interestingly, TMH and TML caused similar effects on hepatic amino acid metabolism, in which most of the essential and non-essential amino acids were significantly declined (P < 0.05) under TM treatments at ED 13 but not affected at ED 16. Until hatching, TML, but not TMH, caused a significant (P < 0.05) delay (31-38 min/day from ED 8) in incubation duration. The hatchability in the TML group was lower than the other two groups, which indicated that 20°C as cold stimulation was not suitable for layer embryos. The body weight, yolk weight, yolk-free body mass, and chick quality were not affected by TM treatments. However, the relative weight of the liver, but not the heart, was significantly reduced (P < 0.05) at hatching by TML treatment. In conclusion, TML, but not TMH, caused to delay in embryogenesis and affected the internal organ of chicks at hatch. Similar changes in amino acid metabolism under TMH and TML indicated that thermal stress induced by both high and low extreme ambient temperatures influences embryonic amino acid metabolism in a similar fashion in layer-type embryos.
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Affiliation(s)
- Guofeng Han
- Institute of Facilities and Equipment in Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Sheng Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yansen Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Phuong V. Tran
- Department of Animal Nutrition and Feed, National Institute of Animal Sciences, Hanoi, Vietnam
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Takashi Bungo
- Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Japan
| | - Vishwajit S. Chowdhury
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Zongchun Bai
- Institute of Facilities and Equipment in Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Chunmei Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Ouchi Y, Komaki Y, Shimizu K, Fukano N, Sugino T, Shiraishi JI, Chowdhury VS, Bungo T. Comparison of oral administration of fructose and glucose on food intake and physiological parameters in broiler chicks. Poult Sci 2022; 102:102249. [PMID: 36335736 PMCID: PMC9640322 DOI: 10.1016/j.psj.2022.102249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/02/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022] Open
Abstract
Like glucose, fructose is a monosaccharide, but the mechanisms of its absorption and metabolism in the body are very different between the 2 molecules. In this study, we investigated the effects of oral administration of glucose and fructose on food intake, diencephalic gene expression, and plasma metabolite concentrations in broiler chicks. The animals used in this study were 4-day-old male broiler chicks (Ross 308). They were given glucose, fructose (200 mg/ 0.5 mL/ bird), or a similar volume of distilled water orally after 6 h fasting. After treatment, measurements of food intake (at 0, 30, and 60 min), and blood glucose as well as insulin concentrations were measured over time; however, diencephalic (hypothalamus) gene expression and plasma metabolites were measured at 30 min. The results showed that glucose administration suppressed food intake, but fructose administration did not suppress food intake and it was at the same level as distilled water administration. In addition, fructose administration did not increase plasma glucose and insulin levels as did glucose administration. In the diencephalon, expression levels of genes related to the melanocortin system were unaffected by the treatment, while gene expression levels related to intracellular energy regulation, such as AMP-activated protein kinase were affected by the glucose treatment in the fasted chicks. These results suggest that fructose administration does not suppress feeding behavior as a result of possible reduction in the energy levels in the diencephalon and associated energy metabolism.
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Affiliation(s)
- Yoshimitsu Ouchi
- Faculty of Veterinary Medicine, Okayama University of Science, Imabari 794-8555, Japan
| | - Yoshinori Komaki
- Graduate School of Bioresource Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
| | - Kensuke Shimizu
- Graduate School of Bioresource Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
| | - Natsuki Fukano
- Graduate School of Bioresource Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
| | - Toshihisa Sugino
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
| | - Jun-ichi Shiraishi
- Department of Animal Science, Nippon Veterinary and Life Science University, Musashino 180-8602, Japan
| | - Vishwajit S. Chowdhury
- Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Takashi Bungo
- Faculty of Veterinary Medicine, Okayama University of Science, Imabari 794-8555, Japan,Corresponding author:
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Nishimura H, Wang Y, Elhussiny MZ, Tran PV, Haraguchi S, Cockrem JF, Bungo T, Furuse M, Chowdhury VS. Central administration of neuropeptide Y reduces the cellular heat stress response and may enhance spleen antioxidative functions in heat-exposed chicks. Neurosci Lett 2022; 784:136749. [PMID: 35728682 DOI: 10.1016/j.neulet.2022.136749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/13/2022] [Accepted: 06/16/2022] [Indexed: 11/15/2022]
Abstract
Previously it was found that mRNA expression of neuropeptide Y (NPY) was increased in the chicken brain under heat stress. NPY has also been reported as an anti-stress factor to regulate brain functions in heat-exposed chicks. However, to the best of our knowledge, there is no report on the action of central NPY in the immune organs under heat stress. The aim of this study was to examine whether central injection of NPY can regulate heat stress response in the spleen and liver. After intracerebroventricular (ICV) injection of NPY, chicks were exposed to control thermoneutral temperature (CT: 30 ± 1 °C) or high ambient temperature (HT: 35 ± 1 °C) chambers for 60 min. Central injection of NPY caused lowering in rectal temperature under CT, but not under HT. Moreover, ICV injection of NPY caused a significant lower mRNA expression of heat-shock protein-70 and higher expression of glutathione synthase in the spleen, but not liver. Furthermore, plasma uric acid concentrations were significantly increased by the ICV injection of NPY in chicks under HT. These results indicate that brain NPY may contribute to attenuate the intracellular heat stress response and enhance antioxidative status in the immune organ, spleen in chicks.
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Affiliation(s)
- Haruka Nishimura
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Ying Wang
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Mohamed Z Elhussiny
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan; Department of Animal & Poultry Behavior and Management, Faculty of Veterinary Medicine, Aswan University, Aswan 81528, Egypt
| | - Phuong V Tran
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Shogo Haraguchi
- Department of Biochemistry, Showa University School of Medicine, Tokyo 142-8555, Japan
| | - John F Cockrem
- School of Veterinary Science, Massey University, Palmerston North 4442, New Zealand
| | - Takashi Bungo
- Faculty of Veterinary Medicine, Okayama University of Science, Imabari 794-8555, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Vishwajit S Chowdhury
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan; Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan.
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Elhussiny MZ, Nishimura H, Tran PV, Haraguchi S, Gilbert ER, Cline MA, Bungo T, Furuse M, Chowdhury VS. Intracerebroventricular injection of taurine induces hypothermia through modifying monoaminergic pathways in chicks. Eur J Pharmacol 2022; 928:175092. [PMID: 35697149 DOI: 10.1016/j.ejphar.2022.175092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/23/2022] [Accepted: 06/08/2022] [Indexed: 11/27/2022]
Abstract
Brain monoamines are reported to regulate body temperature and food intake. The objective of this study was to investigate the mechanism of brain monoamine metabolism in taurine-induced hypothermia and appetite suppression. In Experiment 1, 5-day-old male Julia layer chicks (n = 10) were subjected to intracerebroventricular (ICV) injection with saline or taurine (5 μmol/10 μL). In Experiment 2, the chicks were ICV injected with saline, taurine, fusaric acid (dopamine-β-hydroxylase inhibitor: 558 nmol), or taurine with fusaric acid. In Experiment 3, the chicks were ICV injected with saline, taurine, para-chlorophenylalanine (PCPA, tryptophan hydroxylase inhibitor: 400 nmol), or taurine with PCPA. In Experiment 4, the chicks were ICV injected with saline, taurine, clorgyline (monoamine oxidase inhibitor: 81 nmol), or taurine with clorgyline. Central taurine lowered rectal temperature at 30 min post-injection and increased norepinephrine in the brainstem and its metabolite 3-methoxy-4-hydroxyphenylglycol in both the diencephalon and brainstem. Similarly, taurine treatment induced increases in serotonin (5-HT) and its metabolite 5-hydroxyindoleacetic acid in the diencephalon. Fusaric acid completely and PCPA partially, but not clorgyline, attenuated taurine-induced hypothermia. The anorexigenic effect of taurine was partially attenuated by PCPA, but not fusaric acid nor clorgyline. In conclusion, central taurine activates dopamine-β-hydroxylase and tryptophan hydroxylase to produce norepinephrine and 5-HT, and then induces hypothermia, but 5-HT alone may be linked with taurine-induced anorexia in chicks.
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Affiliation(s)
- Mohamed Z Elhussiny
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan; Department of Animal & Poultry Behavior and Management, Faculty of Veterinary Medicine, Aswan University, Aswan, 81528, Egypt
| | - Haruka Nishimura
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Phuong V Tran
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Shogo Haraguchi
- Department of Biochemistry, Showa University School of Medicine, Tokyo, 142-8555, Japan
| | - Elizabeth R Gilbert
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061-0306, USA
| | - Mark A Cline
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061-0306, USA
| | - Takashi Bungo
- Faculty of Veterinary Medicine, Okayama University of Science, Imabari, 794-8555, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Vishwajit S Chowdhury
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan; Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan.
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Ouchi Y, Chowdhury VS, Cockrem JF, Bungo T. Thermal Conditioning Can Improve Thermoregulation of Young Chicks During Exposure to Low Temperatures. Front Anim Sci 2022. [DOI: 10.3389/fanim.2022.919416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The risk of climate change is increasing year by year and changing environmental temperatures will increasingly have effects on productivity in the poultry industry. Thermal conditioning is a method of improving thermotolerance and productivity in chickens (Gallus gallus domesticus) that experience high ambient temperatures. Thermal conditioning involves exposure of chickens to high temperatures at an early age. This conditioning treatment can affect tolerance to other type of stress. However, the effect of thermal conditioning on tolerance of low temperatures has not been investigated. Therefore, in this study we investigated the effect of thermal conditioning in chickens on thermoregulation during exposure to low temperatures. Three day-old female broiler chicks were exposed to high ambient temperatures (40°C for 12 h) as a thermal conditioning treatment. A control group of chicks was kept at 30°C. At 7 days-old, both groups of chicks were exposed to low temperatures (16 ± 0.5°C) for 3 h. Thermal conditioning treatment reduced the decrease in rectal temperature during cold exposure that occurred in control chicks. In addition, hypothalamic mRNA expression of brain derived neurotrophic factor, thyrotropin-releasing hormone and arginine vasotocin genes was higher in thermal conditioning treated chicks than control chicks. The mRNA expression of avian uncoupling protein in the liver was also higher in thermal conditioning chicks. These results suggest that thermal conditioning treatment can improve thermoregulatory mechanisms of chicks under low temperature environments.
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Chowdhury VS, Han G, Elhussiny MZ, Ouchi Y, Tran PV, Nishimura H, Haraguchi S, Cockrem JF, Bungo T, Furuse M. Oral Administration of L-Citrulline Changes Brain Free Amino Acid and Monoamine Metabolism in Heat-Exposed Broiler Chickens. Front Anim Sci 2022. [DOI: 10.3389/fanim.2022.875572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
High ambient temperatures (HT) in summer are becoming more severe due to global warming, leading to severe adverse effects on poultry production. Recently, we have reported that oral administration of L-citrulline (L-Cit) can minimize hyperthermia in chickens under HT. However, whether oral L-Cit can enter the brain, the center for thermoregulation, has not been studied. We investigated the effects of oral administration of L-Cit on free amino acids and monoamines in the diencephalon region of the brain of heat-exposed broilers. Broilers were treated with L-Cit (40 mmol/20 ml/bird), then moved to a chamber at HT (30 ± 1°C) or to a thermoneutral temperature (CT: 22 ± 1°C) chamber for 2 h. Control groups were given methyl cellulose solution and placed in the CT or HT chambers. After 2 h of exposure to HT, there were increased brain concentrations of Cit in comparison with concentrations in broilers exposed to CT, whereas brain ornithine (Orn) concentrations were decreased, and arginine (Arg) concentrations were not changed. Interestingly, oral administration of L-Cit increased brain concentration of Cit, Arg, and Orn under both CT and HT. Tryptophan and its metabolite, serotonin (5-HT) concentrations were lower in the brain under HT than under CT. HT did not change brain concentrations of tyrosine, but dopamine (DA, a metabolite of tyrosine) concentrations decreased, and methoxyhydroxyphenylglycol (MHPG, a metabolite of DA) concentrations increased in comparison with CT. Oral administration of L-Cit decreased brain concentrations of both tryptophan and tyrosine under CT and HT without changing 5-HT; however, DA levels declined under HT. Moreover, MHPG concentrations increased. In conclusion, these results suggest that metabolism of amino acids and metabolism of DA can be enhanced in the brain by oral administration of L-Cit. Metabolic changes in the brain in response to oral administration of L-Cit may influence the thermoregulatory center in the brain, leading to a reduction in body temperature and conferring thermotolerance in heat-exposed broiler chickens.
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Han G, Cui Y, Shen D, Li M, Ren Y, Bungo T, Chowdhury VS, Li Y, Li C. In ovo Feeding of L-Leucine Improves Antioxidative Capacity and Spleen Weight and Changes Amino Acid Concentrations in Broilers After Chronic Thermal Stress. Front Vet Sci 2022; 9:862572. [PMID: 35372553 PMCID: PMC8971722 DOI: 10.3389/fvets.2022.862572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 02/21/2022] [Indexed: 11/30/2022] Open
Abstract
L-Leucine (L-Leu) was demonstrated to confer thermotolerance by in ovo feeding in broiler chicks and chickens in our previous studies. However, the L-Leu-mediated roles in recovering from the detrimental effects of heat stress in broilers are still unknown. This study aimed to investigate the effects of L-Leu in ovo feeding on the growth performance, relative weight of organs, serum metabolites and antioxidant parameters, and gene expression profiles in broiler chickens after chronic heat stress. Fertilized broiler eggs (Ross 308) were subjected to in ovo feeding of sterile water (0.5 mL/egg) or L-Leu (69 μmol/0.5 mL/egg) on embryonic day 7. After hatching, the male chicks were separated and used for the current study. All chickens were subjected to thermal stress exposure from 21 to 39 days of age and 1 week of recovery from 40 to 46 days of age. The results showed that in ovo feeding of L-Leu did not affect the body weight gain or relative weight of organs under chronic heat stress; however, the serum glutathione peroxidase was significantly increased and serum malondialdehyde was significantly decreased by L-Leu at 39 days of age. After 1 week of recovery, in ovo feeding of L-Leu significantly improved the relative spleen weight at 46 days of age. Subsequent RNA-seq analysis in the spleen showed that a total of 77 significant differentially expressed genes (DEGs) were identified, including 62 upregulated DEGs and 15 downregulated DEGs. Aspartic-type endopeptidase and peptidase activities were upregulated after recovery in the L-Leu group. The expression of genes related to B cell homeostatic proliferation and vestibular receptor cell differentiation, morphogenesis and development was downregulated in the L-Leu group. Moreover, the concentrations of serum catalase, total antioxidative capacity, isoleucine and ammonia were significantly decreased by L-Leu in ovo feeding after recovery. These results suggested that L-Leu in ovo feeding promoted the recovery of antioxidative status after chronic heat stress in broiler chickens.
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Affiliation(s)
- Guofeng Han
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yangyang Cui
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Dan Shen
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Mingyang Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yu Ren
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Takashi Bungo
- Department of Bioresource Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan
| | - Vishwajit S. Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - Yansen Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Chunmei Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- *Correspondence: Chunmei Li
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12
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Elhussiny MZ, Tran PV, Tsuru Y, Haraguchi S, Gilbert ER, Cline MA, Bungo T, Furuse M, Chowdhury VS. Central Taurine Attenuates Hyperthermia and Isolation Stress Behaviors Augmented by Corticotropin-Releasing Factor with Modifying Brain Amino Acid Metabolism in Neonatal Chicks. Metabolites 2022; 12:metabo12010083. [PMID: 35050205 PMCID: PMC8781603 DOI: 10.3390/metabo12010083] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/13/2022] [Accepted: 01/13/2022] [Indexed: 01/01/2023] Open
Abstract
The objective of this study was to determine the effects of centrally administered taurine on rectal temperature, behavioral responses and brain amino acid metabolism under isolation stress and the presence of co-injected corticotropin-releasing factor (CRF). Neonatal chicks were centrally injected with saline, 2.1 pmol of CRF, 2.5 μmol of taurine or both taurine and CRF. The results showed that CRF-induced hyperthermia was attenuated by co-injection with taurine. Taurine, alone or with CRF, significantly decreased the number of distress vocalizations and the time spent in active wakefulness, as well as increased the time spent in the sleeping posture, compared with the saline- and CRF-injected chicks. An amino acid chromatographic analysis revealed that diencephalic leucine, isoleucine, tyrosine, glutamate, asparagine, alanine, β-alanine, cystathionine and 3-methylhistidine were decreased in response to taurine alone or in combination with CRF. Central taurine, alone and when co-administered with CRF, decreased isoleucine, phenylalanine, tyrosine and cysteine, but increased glycine concentrations in the brainstem, compared with saline and CRF groups. The results collectively indicate that central taurine attenuated CRF-induced hyperthermia and stress behaviors in neonatal chicks, and the mechanism likely involves the repartitioning of amino acids to different metabolic pathways. In particular, brain leucine, isoleucine, cysteine, glutamate and glycine may be mobilized to cope with acute stressors.
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Affiliation(s)
- Mohamed Z. Elhussiny
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan; (M.Z.E.); (P.V.T.); (Y.T.); (M.F.)
- Department of Animal & Poultry Behavior and Management, Faculty of Veterinary Medicine, Aswan University, Aswan 81528, Egypt
| | - Phuong V. Tran
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan; (M.Z.E.); (P.V.T.); (Y.T.); (M.F.)
| | - Yuriko Tsuru
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan; (M.Z.E.); (P.V.T.); (Y.T.); (M.F.)
| | - Shogo Haraguchi
- Department of Biochemistry, Showa University School of Medicine, Tokyo 142-8555, Japan;
| | - Elizabeth R. Gilbert
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0306, USA; (E.R.G.); (M.A.C.)
| | - Mark A. Cline
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0306, USA; (E.R.G.); (M.A.C.)
| | - Takashi Bungo
- Department of Bioresource Science, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan;
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan; (M.Z.E.); (P.V.T.); (Y.T.); (M.F.)
| | - Vishwajit S. Chowdhury
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan; (M.Z.E.); (P.V.T.); (Y.T.); (M.F.)
- Division of Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
- Correspondence:
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13
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Cao C, Chowdhury VS, Cline MA, Gilbert ER. The Microbiota-Gut-Brain Axis During Heat Stress in Chickens: A Review. Front Physiol 2021; 12:752265. [PMID: 34744792 PMCID: PMC8563997 DOI: 10.3389/fphys.2021.752265] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 09/29/2021] [Indexed: 12/20/2022] Open
Abstract
Heat stress is a global issue for the poultry industries with substantial annual economic losses and threats to bird health and welfare. When chickens are exposed to high ambient temperatures, like other species they undergo multiple physiological alterations, including behavioral changes, such as cessation of feeding, initiation of a stress signaling cascade, and intestinal immune, and inflammatory responses. The brain and gut are connected and participate in bidirectional communication via the nervous and humoral systems, this network collectively known as the gut-brain axis. Moreover, heat stress not only induces hyperthermia and oxidative stress at the gut epithelium, leading to impaired permeability and then susceptibility to infection and inflammation, but also alters the composition and abundance of the microbiome. The gut microflora, primarily via bacterially derived metabolites and hormones and neurotransmitters, also communicate via similar pathways to regulate host metabolic homeostasis, health, and behavior. Thus, it stands to reason that reshaping the composition of the gut microbiota will impact intestinal health and modulate host brain circuits via multiple reinforcing and complementary mechanisms. In this review, we describe the structure and function of the microbiota-gut-brain axis, with an emphasis on physiological changes that occur in heat-stressed poultry.
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Affiliation(s)
- Chang Cao
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Vishwajit S Chowdhury
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - Mark A Cline
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Elizabeth R Gilbert
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
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14
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Bohler MW, Chowdhury VS, Cline MA, Gilbert ER. Heat Stress Responses in Birds: A Review of the Neural Components. Biology (Basel) 2021; 10:biology10111095. [PMID: 34827087 PMCID: PMC8614992 DOI: 10.3390/biology10111095] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/15/2021] [Accepted: 10/20/2021] [Indexed: 12/26/2022]
Abstract
Heat stress is one of the major environmental conditions causing significant losses in the poultry industry and having negative impacts on the world's food economy. Heat exposure causes several physiological impairments in birds, including oxidative stress, weight loss, immunosuppression, and dysregulated metabolism. Collectively, these lead not only to decreased production in the meat industry, but also decreases in the number of eggs laid by 20%, and overall loss due to mortality during housing and transit. Mitigation techniques have been discussed in depth, and include changes in air flow and dietary composition, improved building insulation, use of air cooling in livestock buildings (fogging systems, evaporation panels), and genetic alterations. Most commonly observed during heat exposure are reduced food intake and an increase in the stress response. However, very little has been explored regarding heat exposure, food intake and stress, and how the neural circuitry responsible for sensing temperatures mediate these responses. That thermoregulation, food intake, and the stress response are primarily mediated by the hypothalamus make it reasonable to assume that it is the central hub at which these systems interact and coordinately regulate downstream changes in metabolism. Thus, this review discusses the neural circuitry in birds associated with thermoregulation, food intake, and stress response at the level of the hypothalamus, with a focus on how these systems might interact in the presence of heat exposure.
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Affiliation(s)
- Mark W. Bohler
- Department of Animal and Poultry Sciences, 2160 Litton-Reaves Hall, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA; (M.W.B.); (M.A.C.)
| | - Vishwajit S. Chowdhury
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan;
| | - Mark A. Cline
- Department of Animal and Poultry Sciences, 2160 Litton-Reaves Hall, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA; (M.W.B.); (M.A.C.)
| | - Elizabeth R. Gilbert
- Department of Animal and Poultry Sciences, 2160 Litton-Reaves Hall, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA; (M.W.B.); (M.A.C.)
- Correspondence: ; Tel.: +1-(540)-231-4750
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15
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Tran PV, Tamura Y, Pham CV, Elhussiny MZ, Han G, Chowdhury VS, Furuse M. Neuropeptide Y modifies a part of diencephalic catecholamine but not indolamine metabolism in chicks depending on feeding status. Neuropeptides 2021; 89:102169. [PMID: 34229214 DOI: 10.1016/j.npep.2021.102169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/16/2022]
Abstract
The role of the monoaminergic system in the feeding behavior of neonatal chicks has been reported, but the functional relationship between the metabolism of monoamines and appetite-related neuropeptides is still unclear. This study aimed to investigate the changes in catecholamine and indolamine metabolism in response to the central action of neuropeptide Y (NPY) in different feeding statuses and the underlying mechanisms. In Experiment 1, the diencephalic concentrations of amino acids and monoamines following the intracerebroventricular (ICV) injection of NPY (375 pmol/10 μl/chick), saline solution under ad libitum, and fasting conditions for 30 min were determined. Central NPY significantly decreased L-tyrosine concentration, the precursor of catecholamines under feeding condition, but not under fasting condition. Central NPY significantly increased dopamine metabolites, including 3,4-dihydroxyphenylacetic acid and homovanillic acid (HVA). The concentration of 3-methoxy-4-hydroxyphenylglycol was significantly reduced under feeding condition, but did not change under fasting condition by NPY. However, no effects of NPY on indolamine metabolism were found in either feeding status. Therefore, the mechanism of action of catecholamines with central NPY under feeding condition was elucidated in Experiment 2. Central NPY significantly attenuated diencephalic gene expression of catecholaminergic synthetic enzymes, such as tyrosine hydroxylase, L-aromatic amino acid decarboxylase, and GTP cyclohydrolase I after 30 min of feeding. In Experiment 3, co-injection of α-methyl-L-tyrosine, an inhibitor of tyrosine hydroxylase with NPY, moderately attenuated the orexigenic effect of NPY, accompanied by a significant positive correlation between food intake and HVA levels. In Experiment 4, there was a significant interaction between NPY and clorgyline, an inhibitor of monoamine oxidase A with ICV co-injection which implies that co-existence of NPY and clorgyline enhances the orexigenic effect of NPY. In conclusion, central NPY modifies a part of catecholamine metabolism, which is illustrated by the involvement of dopamine transmission and metabolism under feeding but not fasting conditions.
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Affiliation(s)
- Phuong V Tran
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Yui Tamura
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Cuong V Pham
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Mohamed Z Elhussiny
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Guofeng Han
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Vishwajit S Chowdhury
- Laboratory of Stress Physiology and Metabolism, Division of Experimental Natural Science, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan.
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16
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Ouchi Y, Chowdhury VS, Cockrem JF, Bungo T. Single nucleotide polymorphism in avian uncoupling protein gene is associated with thermoregulation in chicks. Anim Sci J 2021; 92:e13632. [PMID: 34482590 DOI: 10.1111/asj.13632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 12/01/2022]
Abstract
Avian uncoupling protein (av-UCP) is a key protein for thermoregulation in poultry. A single nucleotide polymorphism (SNP) in the av-UCP gene has been reported in chickens. The purpose of the current study was to clarify the association between this av-UCP gene mutation and thermoregulation in chickens. Wild and mutant type chicks for the av-UCP gene SNP (g. 1270 of the av-UCP gene exon 3 with C to T substitution and amino acid substitution) were exposed to high ambient temperature. Rectal temperature, radiation temperature on the body surface, and the expression of heat dissipation behavior (wing drooping and panting) during heat exposure were measured. In addition, oxygen consumption rate in the thermoneutral zone in wild and mutant type chicks was measured. Changes in wing temperature during heat exposure in wild-type chicks were lower than those in mutants. The latency of continuous wing drooping during heat exposure in wild-type chicks was shorter than in mutant chicks. It was also found that the SNP in the av-UCP gene caused reduced oxygen consumption. These results suggest that the av-UCP gene mutation affects thermoregulation, especially heat production, in chickens.
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Affiliation(s)
- Yoshimitsu Ouchi
- Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
| | - Vishwajit S Chowdhury
- Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - John F Cockrem
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Takashi Bungo
- Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
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17
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Chowdhury VS, Ouchi Y, Haraguchi S, Bungo T. Liver metabolomic analysis in broiler chicks: Profiling the metabolites after oral administration of l-citrulline. Anim Sci J 2021; 92:e13609. [PMID: 34402126 DOI: 10.1111/asj.13609] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/19/2021] [Accepted: 07/09/2021] [Indexed: 11/29/2022]
Abstract
Hypothermia is directly linked to metabolism; however, it is still unknown how the overall metabolism is altered by oral administration of hypothermic agent, l-citrulline (l-Cit). The present study aimed to determine the characteristics of liver metabolites of chicks orally administered l-Cit to provide a greater understanding of its metabolism. Capillary electrophoresis-time-of-flight mass spectrometry (CE-TOFMS) and liquid chromatography-time-of-flight mass spectrometry (LC-TOFMS) were conducted on liver samples after oral administration of l-Cit. A total of 361 liver metabolites were identified. Although a small number of samples were used for each group, a principal component analysis and heatmap patterns confirmed that the composition of metabolites could be segregated from each other. Of the 361 compounds detected in the liver, 41 compounds, including amino acids related to the Cit-arginine (Arg) cycle, argininosuccinic acid, Arg, ornithine, and Cit, as well as gamma aminobutyric acid, glycine, histidine, and nicotinamide adenine dinucleotide were abundant in l-Cit-treated livers. In contrast, 24 compounds containing fatty acids, amino acids, and cyclic adenosine monophosphate were lower in the l-Cit group. These data imply that the active Cit-Arg cycle, TCA cycle metabolism, and a low activity in fatty acid metabolism occur in l-Cit-treated broiler chicks.
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Affiliation(s)
- Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - Yoshimitsu Ouchi
- Department of Bioresource Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan
| | - Shogo Haraguchi
- Department of Biochemistry, Showa University School of Medicine, Tokyo, Japan
| | - Takashi Bungo
- Department of Bioresource Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan
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18
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Chowdhury VS, Ouchi Y, Han G, Eltahan HM, Haraguchi S, Miyazaki T, Shiraishi JI, Sugino T, Bungo T. Oral administration of L-citrulline changes the concentrations of plasma hormones and biochemical profile in heat-exposed broilers. Anim Sci J 2021; 92:e13578. [PMID: 34235825 DOI: 10.1111/asj.13578] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/15/2021] [Accepted: 05/25/2021] [Indexed: 11/29/2022]
Abstract
We examined the effects of oral administration of L-citrulline (L-Cit) on plasma metabolic hormones and biochemical profile in broilers. Food intake, water intake, and body temperature were also analyzed. After dual oral administration (20 mmol/head/administration) of L-Cit, broilers were exposed to a high ambient temperature (HT; 30 ± 1°C) chamber for 120 min. Oral administration of L-Cit reduced (p < .001) rectal temperature in broilers. Food intake was increased (p < .05) by heat stress, but it was reduced (p < .05) by L-Cit. Plasma levels of 3,5,3'-triiodothyronine, which initially increased (p < .0001) due to heat stress, were reduced (p < .01) by oral administration of L-Cit. Plasma insulin levels were increased by heat exposure (p < .01) and oral L-Cit (p < .05). Heat stress caused a decline (p < .05) in plasma thyroxine. Plasma lactic acid (p < .05) and non-esterified fatty acids (p < .01) were increased in L-Cit-treated heat-exposed broilers. In conclusion, our results suggest that oral L-Cit can modulate plasma concentrations of major metabolic hormones and reduces food intake in broilers.
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Affiliation(s)
- Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka, Japan.,Department of Bioresource Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, Japan
| | - Yoshimitsu Ouchi
- Department of Bioresource Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Guofeng Han
- Department of Bioresource Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, Japan.,Department of Animal Nutrition and Food Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Hatem M Eltahan
- Department of Bioresource Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, Japan.,Agriculture Research Center, Animal Production Research Institute, Agriculture Ministry, Cairo, Egypt
| | - Shogo Haraguchi
- Department of Biochemistry, Showa University School of Medicine, Tokyo, Japan
| | - Takuro Miyazaki
- Department of Biochemistry, Showa University School of Medicine, Tokyo, Japan
| | | | - Toshihisa Sugino
- Department of Bioresource Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Takashi Bungo
- Department of Bioresource Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
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19
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Ouchi Y, Yamato M, Chowdhury VS, Bungo T. Adenosine 5'-monophosphate induces hypothermia and alters gene expressions in the brain and liver of chicks. Brain Res Bull 2021; 172:14-21. [PMID: 33862124 DOI: 10.1016/j.brainresbull.2021.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/05/2021] [Accepted: 04/10/2021] [Indexed: 10/21/2022]
Abstract
The adenosine A1 receptor is important for body temperature regulation in mammals; however, little is known about its function in avian species. In this study, we investigated the effects of the adenosine A1 receptor agonist and antagonist (adenosine 5'-monophosphate [5'-AMP] and 8 p-sulfophenyl theophylline [8-SPT], respectively) on thermoregulation in chickens. Male chicks were used in this study. After administration of 5'-AMP and 8-SPT, the rectal temperature, plasma metabolites, and gene expressions in the hypothalamus and liver were measured. The rectal temperature was reduced by peripheral administration of 5'-AMP, and the hypothermic effect of 5'-AMP was attenuated by central injection of 8-SPT in chicks. In the hypothalamus, the mRNA level of the agouti-related protein (AgRP) was increased by 5'-AMP administration, whereas it was suppressed by 8-SPT. The plasma levels of free fatty acid were elevated in 5'-AMP-treated chicks and that elevation was suppressed by the 8-SPT treatment. The gene expression of proopiomelanocortin in the hypothalamus was affected by 8-SPT. Nevertheless, the gene expressions of the thermoregulation-related genes, such as the thyrotropin-releasing hormone, were not affected by 5'-AMP and 8-SPT. Hepatic gene expressions related to lipid intake and metabolism were suppressed by 5'-AMP. However, the gene expression of the uncoupling protein was upregulated by 5'-AMP. Based on these results, birds, like mammals, will undergo adenosine A1 receptor-induced hypothermia. In conclusion, it is suggested that 5'-AMP-mediated hypothermia via the adenosine A1 receptor may affect the central melanocortin system and suppress hepatic lipid metabolism in chickens.
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Affiliation(s)
- Yoshimitsu Ouchi
- Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi, Hiroshima, 739-8528, Japan
| | - Miko Yamato
- Faculty of Applied Biological Science, Hiroshima University, Higashi, Hiroshima, 739-8528, Japan
| | | | - Takashi Bungo
- Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi, Hiroshima, 739-8528, Japan.
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20
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Elhussiny MZ, Tran PV, Pham CV, Nguyen LTN, Haraguchi S, Gilbert ER, Cline MA, Bungo T, Furuse M, Chowdhury VS. Central GABA A receptor mediates taurine-induced hypothermia and possibly reduces food intake in thermo-neutral chicks and regulates plasma metabolites in heat-exposed chicks. J Therm Biol 2021; 98:102905. [PMID: 34016332 DOI: 10.1016/j.jtherbio.2021.102905] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 10/21/2022]
Abstract
The aim of this study was to examine the central action of taurine on body temperature and food intake in neonatal chicks under control thermoneutral temperature (CT) and high ambient temperature (HT). Intracerebroventricular injection of taurine caused dose-dependent hypothermia and reduced food intake under CT. The mRNA expression of the GABAA receptors, GABAAR-α1 and GABAAR-γ, but not that of GABABR, significantly decreased in the diencephalon after central injection of taurine. Subsequently, we found that picrotoxin, a GABAAR antagonist, attenuated taurine-induced hypothermia. Central taurine significantly decreased the brain concentrations of 3-methoxy-4-hydroxyphenylglycol, a major metabolite of norepinephrine; however, the concentrations of serotonin, dopamine, and the epinephrine metabolites, 3,4-hydroxyindoleacetic acid and homovanillic acid, were unchanged. Although hypothermia was not observed under HT after central injection of taurine, plasma glucose and uric acid levels were higher, and plasma sodium and calcium levels were lower, than those in chicks under CT. In conclusion, brain taurine may play a role in regulating body temperature and food intake in chicks through GABAAR. The changes in plasma metabolites under heat stress suggest that brain taurine may play an important role in maintaining homeostasis in chicks.
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Affiliation(s)
- Mohamed Z Elhussiny
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan; Department of Animal & Poultry Behaviour and Management, Faculty of Veterinary Medicine, Aswan University, Aswan, 81528, Egypt
| | - Phuong V Tran
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Cuong V Pham
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Linh T N Nguyen
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Shogo Haraguchi
- Department of Biochemistry, Showa University School of Medicine, Tokyo, 142-8555, Japan
| | - Elizabeth R Gilbert
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Mark A Cline
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Takashi Bungo
- Department of Bioresource Science, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Vishwajit S Chowdhury
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan; Laboratory of Stress Physiology and Metabolism, Division of Experimental Natural Science, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan.
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21
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Ouchi Y, Chowdhury VS, Cockrem JF, Bungo T. Av-UCP single nucleotide polymorphism affects heat production during cold exposure in chicks. J Therm Biol 2021; 98:102909. [PMID: 34016336 DOI: 10.1016/j.jtherbio.2021.102909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/11/2021] [Accepted: 03/11/2021] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Uncoupling protein one (UCP1) is involved in thermogenesis, especially in non-shivering heat production. In chickens, a single nucleotide polymorphism (SNP) of the av-UCP (avian UCP) gene has been reported to be associated with body weight gain and increased abdominal fat. The purpose of this study was to examine the relationship between the av-UCP gene SNP and heat production in chicks. METHODS C/C and T/T male chicks (Rhode Island Red) of av-UCP gene SNP (g. 1270, C > T) were exposed to a low temperature environment (16 °C for 15 min) and their physiological responses were compared. RESULTS After cold exposure, mean rectal temperatures of C/C chicks were higher than those of T/T chicks. In pectoral muscle, genes expression of av-UCP and carnitine palmitoyltransferase-1 were higher in C/C chicks than T/T chicks. Hypothalamic expression levels of thyrotropin-releasing hormone and proopiomelanocortin genes were higher in C/C chicks than T/T chicks. Expression of hypothalamic corticotropin-releasing hormone, arginine vasotocin, brain-derived neurotrophic factor and neuropeptide Y genes did not differ between C/C and T/T chicks. In addition, plasma free fatty acid levels in C/C chicks were lower than those of T/T chicks. CONCLUSION These results suggest that the av-UCP gene SNP affects non-shivering heat production via the hypothalamo-pituitary-thyroid axis and fatty acid metabolism in the chicken.
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Affiliation(s)
- Yoshimitsu Ouchi
- Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan
| | - Vishwajit S Chowdhury
- Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - John F Cockrem
- School of Veterinary Science, Massey University, Palmerston North, 4442, New Zealand
| | - Takashi Bungo
- Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan.
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22
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Ouchi Y, Chowdhury VS, Cockrem JF, Bungo T. Effects of Thermal Conditioning on Changes in Hepatic and Muscular Tissue Associated With Reduced Heat Production and Body Temperature in Young Chickens. Front Vet Sci 2021; 7:610319. [PMID: 33537354 PMCID: PMC7847892 DOI: 10.3389/fvets.2020.610319] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/08/2020] [Indexed: 11/13/2022] Open
Abstract
Effects of increased summer temperatures on poultry production are becoming more pronounced due to global warming, so it is important to consider approaches that might reduce heat stress in chickens. Thermal conditioning in chickens in the neonatal period can improve thermotolerance and reduce body temperature increases when birds are exposed to high ambient temperature later in life. The objective of this study was to investigate physiological and molecular changes associated with heat production and hence body temperature regulation under high ambient temperatures in thermally conditioned chicks. Three-day-old broiler chicks (Chunky) were thermally conditioned by exposure to a high ambient temperature (40°C) for 12 h while control chicks were kept at 30°C. Four days after the treatment, both groups were exposed to 40°C for 15 or 90 min. The increase in rectal temperature during 90 min of exposure to a high ambient temperature was less in thermally conditioned than control chicks. At 15-min of re-exposure treatment, gene expression for uncoupling protein and carnitine palmitoyletransferase 1, key molecules in thermogenesis and fatty acid oxidation, were significantly higher in pectoral muscle of control chicks but not conditioned chicks. Hepatic argininosuccinate synthase (ASS) decreased and hepatic argininosuccinate lyase (ASL) increased after reexposure to a high temperature. The concentrations of hepatic arginosuccinic acid, and ASS and ASL expression, were upregulated in conditioned chicks compared with the control chicks, indicating activity of the urea cycle could be enhanced to trap more energy to reduce heat production in conditioned chicks. These results suggest thermal conditioning can reduce the increase in heat production in muscles of chickens that occurs in high ambient temperatures to promote sensible heat loss. Conditioning may also promote energy trapping process in the liver by altering the heat production system, resulting in an alleviation of the excessive rise of body temperature.
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Affiliation(s)
- Yoshimitsu Ouchi
- Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan
| | - Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - John F Cockrem
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Takashi Bungo
- Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan
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Chowdhury VS, Han G, Eltahan HM, Haraguchi S, Gilbert ER, Cline MA, Cockrem JF, Bungo T, Furuse M. Potential Role of Amino Acids in the Adaptation of Chicks and Market-Age Broilers to Heat Stress. Front Vet Sci 2021; 7:610541. [PMID: 33490137 PMCID: PMC7820334 DOI: 10.3389/fvets.2020.610541] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 11/27/2020] [Indexed: 01/11/2023] Open
Abstract
Increased average air temperatures and more frequent and prolonged periods of high ambient temperature (HT) associated with global warming will increasingly affect worldwide poultry production. It is thus important to understand how HT impacts poultry physiology and to identify novel approaches to facilitate improved adaptation and thereby maximize poultry growth, health and welfare. Amino acids play a role in many physiological functions, including stress responses, and their relative demand and metabolism are altered tissue-specifically during exposure to HT. For instance, HT decreases plasma citrulline (Cit) in chicks and leucine (Leu) in the embryonic brain and liver. The physiological significance of these changes in amino acids may involve protection of the body from heat stress. Thus, numerous studies have focused on evaluating the effects of dietary administration of amino acids. It was found that oral l-Cit lowered body temperature and increased thermotolerance in layer chicks. When l-Leu was injected into fertile broiler eggs to examine the cause of reduction of Leu in embryos exposed to HT, in ovo feeding of l-Leu improved thermotolerance in broiler chicks. In ovo injection of l-Leu was also found to inhibit weight loss in market-age broilers exposed to chronic HT, giving rise to the possibility of developing a novel biotechnology aimed at minimizing the economic losses to poultry producers during summer heat stress. These findings and the significance of amino acid metabolism in chicks and market-age broilers under HT are summarized and discussed in this review.
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Affiliation(s)
- Vishwajit S Chowdhury
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - Guofeng Han
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, Japan
| | - Hatem M Eltahan
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, Japan
| | - Shogo Haraguchi
- Department of Biochemistry, Showa University School of Medicine, Tokyo, Japan
| | - Elizabeth R Gilbert
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Mark A Cline
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - John F Cockrem
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Takashi Bungo
- Department of Bioresource Science, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, Japan
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24
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Tran PV, Nguyen LTN, Yang H, Do PH, Torii K, Putnam GL, Chowdhury VS, Furuse M. Intracerebroventricular injection of L-arginine and D-arginine induces different effects under an acute stressful condition. Biochem Biophys Res Commun 2020; 533:965-970. [PMID: 33008589 DOI: 10.1016/j.bbrc.2020.09.111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/24/2020] [Indexed: 12/12/2022]
Abstract
Central administration of L-arginine was reported to attenuate stress responses in neonatal chicks. The present study aimed to elucidate the differential effects of centrally administered L-arginine and its enantiomer, D-arginine, on the stress response in chicks and the associated mechanisms. Intracerebroventricular injection of L-arginine attenuated acute isolation stress by inducing sleep-like behavior, while central administration of D-arginine potentiated the stress response, reducing the time spent standing motionless with eyes open and increasing distress vocalizations compared to the control. The brain concentrations of amino acids and monoamines following L- and D-arginine administration during stress were also determined. L-Arginine significantly increased the mesencephalic L-glutamine concentration. D-Arginine administration did not affect the levels of L-arginine or other amino acids in the examined brain regions. 3,4-Dihydroxyphenylacetic acid (DOPAC) level and dopamine (DA) metabolic rate (DOPAC/DA) were significantly higher in the diencephalon in the D-arginine group compared to the L-arginine group, while the mesencephalic DA level was significantly lower in the D-arginine group compared to the control. In vitro experiment using the brain slice culture demonstrated that extracellular perfusion of D-arginine significantly elevated the mRNA expression level of monoamine oxidase B, the major enzyme involved in DA metabolism, in the locus coeruleus region of the brainstem. In conclusion, in neonatal chicks, central administration of D-arginine exerted a stimulant effect on the stress response, in contrast to the stress-attenuating effects of L-arginine, partly through an effect on brain dopaminergic metabolism and not through competition with the L-stereoisomer.
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Affiliation(s)
- Phuong V Tran
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Linh T N Nguyen
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Hui Yang
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Phong H Do
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kyohei Torii
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Grace L Putnam
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Vishwajit S Chowdhury
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 819-0395, Japan.
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25
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Webster AN, Cao C, Chowdhury VS, Gilbert ER, Cline MA. The hypothalamic mechanism of neuropeptide S-induced satiety in Japanese quail (Coturnix japonica) involves the paraventricular nucleus and corticotropin-releasing factor. Gen Comp Endocrinol 2020; 299:113558. [PMID: 32707241 DOI: 10.1016/j.ygcen.2020.113558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 01/10/2023]
Abstract
Neuropeptide S (NPS), a 20-amino acid neuropeptide, is produced in the brain and is associated with appetite suppression.Our group was the first to report this anorexigenic effect in birds using chicken as a model, although a hypothalamic molecular mechanism remains to be elucidated. Thus, we designed the present study using Japanese quail(Coturnix japonica).In Experiment 1, quail intracerebroventricularly injected with NPS reduced both food and water intake. In Experiment 2, food-restricted quail injected with NPS displayed a reduction in water intake.In Experiment 3, NPS-injected quail reduced their feeding and exploratory pecks.In Experiment 4, we quantified the number of cells expressing the early intermediate gene product c-Fos (as a marker of neuronal activation) in appetite associated hypothalamic nuclei and found that immunoreactivity was increased in the paraventricular nucleus (PVN). In Experiment 5, we utilized real-time PCR to screen for neuropeptide changes within the PVN of NPS-injected quail. Mesotocin and corticotropin-releasing factor (CRF) mRNAs increased in response to NPS injection. In Experiment 6, co-injection of astressin, a CRF receptor antagonist, was sufficient to block the food intake-suppressive effects of NPS, but in Experiment 7, co-injection of an oxytocin receptor antagonist was not sufficient to block the food intake-suppressive effects of NPS. Collectively, results support that NPS induces an anorexigenic response in Japanese quail that is mediated within the PVN and is associated with CRF.
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Affiliation(s)
- Addison N Webster
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Chang Cao
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Elizabeth R Gilbert
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Mark A Cline
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
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26
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Ouchi Y, Tanizawa H, Shiraishi JI, Cockrem JF, Chowdhury VS, Bungo T. Repeated thermal conditioning during the neonatal period affects behavioral and physiological responses to acute heat stress in chicks. J Therm Biol 2020; 94:102759. [PMID: 33293000 DOI: 10.1016/j.jtherbio.2020.102759] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/05/2020] [Accepted: 10/05/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE The aim of the present study was to investigate the effects of repeated thermal conditioning (RTC) at an early age on physiological and behavioral responses in chicks. METHODS Birds were assigned to one of the four treatments in which the RTC was exposure to 40 °C for 15 min daily. The treatments were 1) no thermal conditioning (control); 2) early exposure group (EE; RTC from 2 to 4 days of age); 3) later exposure group (LE; RTC from 5 to 7 days of age); or 4) both early and later exposure (BE; RTC from 2 to 7 days of age). All groups of chicks were challenged with high ambient temperature (40 °C for 15 min) at two weeks of age. RESULTS During heat challenge, initiation times of dissipation behaviors (panting and wing-drooping) were measured. Rectal temperature and respiration rate were measured after and before heat challenge. Hypothalamic samples and blood were collected at the end of heat challenges. Initiation times of dissipation behaviors and rectal temperature were not affected by the treatments. Increases in respiration rate in response to heat challenge were suppressed by early RTC treatment. There was no clear pattern of glucose levels in relation to thermal conditioning, whereas plasma corticosterone levels were decreased by early treatment (EE and BE groups). Hypothalamic thyrotropin releasing hormone gene expression was suppressed by early and later thermal conditioning and suppressed further by both early and later exposure. Neuropeptide Y gene expression in the BE group was lower than in the other groups, with a similar trend for corticotropin releasing hormone expression. CONCLUSION Our results suggest that the effect of repeated thermal conditioning on the central thermoregulatory system depends on the number of times that chicks experienced conditioning. In addition, repeated thermal conditioning has greater effects on the acquisition of thermotolerance when conditioning occurs in chicks of two to four days of age in comparison with chicks of five to seven days of age.
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Affiliation(s)
- Yoshimitsu Ouchi
- Laboratory of Animal Behavior and Physiology, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan
| | - Hiroshi Tanizawa
- Laboratory of Animal Behavior and Physiology, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan
| | - Jun-Ichi Shiraishi
- Department of Animal Science, Nippon Veterinary and Life Science University, Musashino, 180-8602, Japan
| | - John F Cockrem
- School of Veterinary Science, Massey University, Palmerston North, 4442, New Zealand
| | - Vishwajit S Chowdhury
- Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Takashi Bungo
- Laboratory of Animal Behavior and Physiology, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan.
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27
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Halter B, Chowdhury VS, Gilbert ER, Cline MA. Oxyntomodulin induces satiety and activates the arcuate nucleus of the hypothalamus in Japanese quail. Comp Biochem Physiol A Mol Integr Physiol 2020; 247:110721. [DOI: 10.1016/j.cbpa.2020.110721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/30/2020] [Accepted: 04/30/2020] [Indexed: 10/24/2022]
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28
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Ikegame M, Hattori A, Tabata MJ, Kitamura K, Tabuchi Y, Furusawa Y, Maruyama Y, Yamamoto T, Sekiguchi T, Matsuoka R, Hanmoto T, Ikari T, Endo M, Omori K, Nakano M, Yashima S, Ejiri S, Taya T, Nakashima H, Shimizu N, Nakamura M, Kondo T, Hayakawa K, Takasaki I, Kaminishi A, Akatsuka R, Sasayama Y, Nishiuchi T, Nara M, Iseki H, Chowdhury VS, Wada S, Ijiri K, Takeuchi T, Suzuki T, Ando H, Matsuda K, Somei M, Mishima H, Mikuni‐Takagaki Y, Funahashi H, Takahashi A, Watanabe Y, Maeda M, Uchida H, Hayashi A, Kambegawa A, Seki A, Yano S, Shimazu T, Suzuki H, Hirayama J, Suzuki N. Melatonin is a potential drug for the prevention of bone loss during space flight. J Pineal Res 2019; 67:e12594. [PMID: 31286565 PMCID: PMC6771646 DOI: 10.1111/jpi.12594] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/19/2019] [Accepted: 06/19/2019] [Indexed: 12/30/2022]
Abstract
Astronauts experience osteoporosis-like loss of bone mass because of microgravity conditions during space flight. To prevent bone loss, they need a riskless and antiresorptive drug. Melatonin is reported to suppress osteoclast function. However, no studies have examined the effects of melatonin on bone metabolism under microgravity conditions. We used goldfish scales as a bone model of coexisting osteoclasts and osteoblasts and demonstrated that mRNA expression level of acetylserotonin O-methyltransferase, an enzyme essential for melatonin synthesis, decreased significantly under microgravity. During space flight, microgravity stimulated osteoclastic activity and significantly increased gene expression for osteoclast differentiation and activation. Melatonin treatment significantly stimulated Calcitonin (an osteoclast-inhibiting hormone) mRNA expression and decreased the mRNA expression of receptor activator of nuclear factor κB ligand (a promoter of osteoclastogenesis), which coincided with suppressed gene expression levels for osteoclast functions. This is the first study to report the inhibitory effect of melatonin on osteoclastic activation by microgravity. We also observed a novel action pathway of melatonin on osteoclasts via an increase in CALCITONIN secretion. Melatonin could be the source of a potential novel drug to prevent bone loss during space flight.
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Affiliation(s)
- Mika Ikegame
- Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama UniversityOkayamaJapan
| | - Atsuhiko Hattori
- College of Liberal Arts and SciencesTokyo Medical and Dental UniversityIchikawaJapan
| | - Makoto J. Tabata
- Graduate School of Tokyo Medical and Dental UniversityBunkyo‐kuJapan
| | - Kei‐ichiro Kitamura
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health SciencesKanazawa UniversityKodatsunoJapan
| | | | - Yukihiro Furusawa
- Department of Liberal Arts and SciencesToyama Prefectural UniversityToyamaJapan
| | - Yusuke Maruyama
- College of Liberal Arts and SciencesTokyo Medical and Dental UniversityIchikawaJapan
| | - Tatsuki Yamamoto
- Division of Marine Environmental Studies, Noto Marine Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNoto‐choJapan
| | - Toshio Sekiguchi
- Division of Marine Environmental Studies, Noto Marine Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNoto‐choJapan
| | - Risa Matsuoka
- College of Liberal Arts and SciencesTokyo Medical and Dental UniversityIchikawaJapan
| | - Taizo Hanmoto
- Division of Marine Environmental Studies, Noto Marine Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNoto‐choJapan
| | - Takahiro Ikari
- Division of Marine Environmental Studies, Noto Marine Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNoto‐choJapan
| | - Masato Endo
- Department of Marine BiosciencesTokyo University of Marine Science and TechnologyMinato‐kuJapan
| | | | - Masaki Nakano
- College of Liberal Arts and SciencesTokyo Medical and Dental UniversityIchikawaJapan
| | - Sayaka Yashima
- College of Liberal Arts and SciencesTokyo Medical and Dental UniversityIchikawaJapan
| | - Sadakazu Ejiri
- Division of Oral Structure, Function and DevelopmentAsahi University School of DentistryMizuhoJapan
| | | | - Hiroshi Nakashima
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health SciencesKanazawa UniversityKodatsunoJapan
| | - Nobuaki Shimizu
- Division of Marine Environmental Studies, Noto Marine Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNoto‐choJapan
| | - Masahisa Nakamura
- Faculty of Education and Integrated Arts and SciencesWaseda UniversityShinjuku‐kuJapan
| | - Takashi Kondo
- Graduate School of Medicine and Pharmaceutical SciencesUniversity of ToyamaToyamaJapan
| | - Kazuichi Hayakawa
- Low Level Radioactivity Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNomiJapan
| | - Ichiro Takasaki
- Graduate School of Science and EngineeringUniversity of ToyamaToyamaJapan
| | - Atsushi Kaminishi
- Division of Marine Environmental Studies, Noto Marine Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNoto‐choJapan
| | - Ryosuke Akatsuka
- College of Liberal Arts and SciencesTokyo Medical and Dental UniversityIchikawaJapan
| | - Yuichi Sasayama
- Division of Marine Environmental Studies, Noto Marine Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNoto‐choJapan
| | - Takumi Nishiuchi
- Institute for Gene Research, Advanced Science Research CenterKanazawa UniversityKanazawaJapan
| | - Masayuki Nara
- College of Liberal Arts and SciencesTokyo Medical and Dental UniversityIchikawaJapan
| | - Hachiro Iseki
- Graduate School of Tokyo Medical and Dental UniversityBunkyo‐kuJapan
| | | | | | - Kenichi Ijiri
- Radioisotope CenterUniversity of TokyoBunkyo‐kuJapan
| | - Toshio Takeuchi
- Department of Marine BiosciencesTokyo University of Marine Science and TechnologyMinato‐kuJapan
| | - Tohru Suzuki
- Graduate School of Agricultural ScienceTohoku UniversitySendaiJapan
| | - Hironori Ando
- Marine Biological Station, Sado Center for Ecological SustainabilityNiigata UniversitySadoJapan
| | - Kouhei Matsuda
- Laboratory of Regulatory Biology, Graduate School of Science and EngineeringUniversity of ToyamaToyamaJapan
| | - Masanori Somei
- Division of Marine Environmental Studies, Noto Marine Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNoto‐choJapan
| | - Hiroyuki Mishima
- Department of Dental EngineeringTsurumi University School of Dental MedicineYokohamaJapan
| | | | - Hisayuki Funahashi
- Department of Physical Therapy, Faculty of Makuhari Human CareTohto UniversityMihama‐kuJapan
| | | | - Yoshinari Watanabe
- Organization of Frontier Science and InnovationKanazawa UniversityKanazawaJapan
| | | | | | | | | | | | | | | | | | - Jun Hirayama
- Department of Clinical Engineering, Faculty of Health SciencesKomatsu UniversityKomatsuJapan
| | - Nobuo Suzuki
- Division of Marine Environmental Studies, Noto Marine Laboratory, Institute of Nature and Environmental TechnologyKanazawa UniversityNoto‐choJapan
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Wang Y, Han G, Pham CV, Koyanagi K, Song Y, Sudo R, Lauwereyns J, Cockrem JF, Furuse M, Chowdhury VS. An acute increase in water temperature can increase free amino acid concentrations in the blood, brain, liver, and muscle in goldfish (Carassius auratus). Fish Physiol Biochem 2019; 45:1343-1354. [PMID: 31001753 DOI: 10.1007/s10695-019-00642-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 04/08/2019] [Indexed: 06/09/2023]
Abstract
Water temperature directly affects the body temperature in fish, so increasing water temperatures in oceans and rivers will lead to increases in fish body temperatures. Whilst a range of responses of fish to increases in water temperature have been measured, amino acid metabolism in a fish under high water temperature (HT) conditions has not been investigated. The aim of this study was to determine the effects of an acute increase in water temperature on oxygen consumption, plasma cortisol concentrations, and free amino acid concentrations in plasma and several tissues in goldfish (Carassius auratus). Oxygen consumption and plasma cortisol concentrations were increased in goldfish exposed to HT (30 ± 1 °C) for 200 min compared with goldfish at a control water temperature (CT 17 ± 1 °C). Oxygen consumption and plasma cortisol concentrations in both groups of fish combined were positively correlated. When goldfish were exposed to HT for 300 min oxygen consumption and plasma concentrations of 15 free amino acids were increased compared with goldish at CT. Concentrations of several free amino acids were increased to varying extents in the brain, liver, and muscle tissues. In conclusion, an acute increase in water temperature affected amino acid metabolism differently in the brain, liver, and muscle tissues. Goldfish will be a useful species for further studies of the possible roles of various amino acids in the brain, muscle, and liver during acute increases in water temperature in fish.
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Affiliation(s)
- Yunhao Wang
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Guofeng Han
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Cuong V Pham
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kiyohiko Koyanagi
- Fishery Research Laboratory, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yandejia Song
- Laboratory of Cognative Neuroscience, Graduate School of System Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Ryunosuke Sudo
- Laboratory of Cognative Neuroscience, Graduate School of System Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Johan Lauwereyns
- Laboratory of Cognative Neuroscience, Graduate School of System Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - John F Cockrem
- School of Veterinary Science, Massey University, Palmerston North, 4442, New Zealand
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Vishwajit S Chowdhury
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan.
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Han G, Yang H, Wang Y, Haraguchi S, Miyazaki T, Bungo T, Tashiro K, Furuse M, Chowdhury VS. L-Leucine increases the daily body temperature and affords thermotolerance in broiler chicks. Asian-Australas J Anim Sci 2019; 32:842-848. [PMID: 30381734 PMCID: PMC6498076 DOI: 10.5713/ajas.18.0677] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/08/2018] [Accepted: 10/23/2018] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Heat stress poses an increasing threat for poultry production. Some amino acids have been found to play critical roles in affording thermotolerance. Recently, it was found that in ovo administration of L-leucine (L-Leu) altered amino acid metabolism and afforded thermotolerance in heat-exposed broiler chicks. METHODS In this study, two doses (35 and 70 μmol/egg) of L-Leu were administered in ovo on embryonic day 7 to determine their effect on rectal temperature (RT), body weight (BW) and thyroid hormones at hatching. Changes in RT, BW, and thermotolerance in post-hatched chicks were also analyzed. RESULTS It was found that in ovo administration of L-Leu dose-dependently reduced RT and plasma thyroxine (T4) level just after hatching. In post-hatched neonatal broiler chicks, however, the higher dose of L-Leu administered in ovo significantly increased RT without affecting BW gain. In chicks that had been exposed to heat stress, the RT was significantly lowered by in ovo administration of L-Leu (high dose) in comparison with the control chicks under the same high ambient temperature (HT: 35°C±1°C, 120 min). CONCLUSION In ovo administration of L-Leu in a high dose contributed to an increased daily body temperature and afforded thermotolerance under HT in neonatal broiler chicks.
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Affiliation(s)
- Guofeng Han
- Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395,
Japan
| | - Hui Yang
- Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395,
Japan
| | - Yunhao Wang
- Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395,
Japan
| | - Shogo Haraguchi
- Department of Biochemistry, Showa University School of Medicine, Tokyo 152-8555,
Japan
| | - Takuro Miyazaki
- Department of Biochemistry, Showa University School of Medicine, Tokyo 152-8555,
Japan
| | - Takashi Bungo
- Department of Bioresource Science, Hiroshima University, Higashi-Hiroshima 739-8528,
Japan
| | - Kosuke Tashiro
- Department of Molecular Biosciences, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395,
Japan
| | - Mitsuhiro Furuse
- Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395,
Japan
| | - Vishwajit S. Chowdhury
- Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395,
Japan
- Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395,
Japan
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Han G, Yang H, Wang Y, Zhang R, Tashiro K, Bungo T, Furuse M, Chowdhury VS. Effects of in ovofeeding of L-leucine on amino acids metabolism and heat-shock protein-70, and -90 mRNA expression in heat-exposed chicks. Poult Sci 2019; 98:1243-1253. [DOI: 10.3382/ps/pey444] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 08/31/2018] [Indexed: 11/20/2022] Open
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Yang H, Chowdhury VS, Han G, Zhang R, Furuse M. Flavangenol regulates gene expression of HSPs, anti-apoptotic and anti-oxidative factors to protect primary chick brain cells exposed to high temperature. J Therm Biol 2019; 81:1-11. [PMID: 30975405 DOI: 10.1016/j.jtherbio.2019.02.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 02/04/2019] [Accepted: 02/04/2019] [Indexed: 10/27/2022]
Abstract
Heat-stress exposure increased the expression of heat-shock proteins (HSPs), B-cell lymphoma 2 (BCL-2) and anti-oxidative enzymes to maintain normal cellular function by attenuating the oxidative reaction and apoptosis. Reducing the stress response or enhancing anti-stress capability is an important goal in animal production. Our previous study indicated a protective role of flavangenol, a pine bark extract, in chicks after three hours of high-temperature exposure. However, the cellular mechanism of flavangenol was not clarified ex vivo. In the current study, we investigated the effect of flavangenol on cellular apoptosis and oxidation in heat-stressed treated chick brain cells (mixed neurons and glia cells). The primary brain cells were isolated from the diencephalon of 14-day-old chicks and cultured at 41.5 °C (to mimic the body temperature of young chicks), and were treated with flavangenol from day 3 of isolation to day 8. Cells were kept bathed in the cell culture dish under a high temperature (HT: 45 °C, 20 or 60 min) on day 8 and were then collected for analysis of cell viability as well as for HSP and other related gene expression. Flavangenol treatment significantly increased cell viability and BCL-2 mRNA expression, and attenuated HSP-70 and BCL-2-associated X protein mRNA expression. Moreover, flavangenol treatment elevated the mRNA expression of glutathione peroxidase in the HT group, which indicates that cellular anti-oxidative ability was strengthened by flavangenol. In conclusion, flavangenol may play a protective role in cells damaged or killed by heat stress by increasing cellular anti-oxidative pathways.
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Affiliation(s)
- Hui Yang
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Vishwajit S Chowdhury
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395, Japan.
| | - Guofeng Han
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Rong Zhang
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395, Japan; Division of Endocrinology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
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Abstract
With global warming, heat stress is becoming a pressing concern worldwide. In chickens, heat stress reduces food intake and growth, and increases body temperature and stress responses. Although it is believed that young chicks do not experience heat stress as they need a higher ambient temperature to survive, our series of studies in young chicks showed that they are sensitive to heat stress. This review summarizes current knowledge on amino acid metabolisms during heat stress, with special emphasis on the hypothermic functions of l-citrulline (l-Cit) and l-leucine (l-Leu), and the functions of neuropeptide Y (NPY) in terms of body temperature and heat stress regulation in chicks. Amino acid metabolism is severely affected by heat stress. For example, prolonged heat stress reduces plasma l-Cit in chicks and l-Leu in the brain and liver of embryos. l-Cit and l-Leu supplementation affords thermotolerance in young chicks. NPY expression is increased in the brains of heat-exposed chicks. NPY has a hypothermic action under control thermoneutral temperature and heat stress in chicks. The NPY-sub-receptor Y5 is a partial mediator of the hypothermic action of NPY. Further, NPY stimulates brain dopamine concentrations and acts as an anti-stress agent in heat-exposed fasted, but not fed chicks. In conclusion, young chicks can serve as a model animal for the study of heat stress in chickens. l-Cit, l-Leu, and NPY were identified as biomarkers of heat stress, with the potential to afford thermotolerance in chicks.
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Affiliation(s)
- Vishwajit S. Chowdhury
- Lab of Stress Physiology and Metabolism, Graduate School of Bioresource and Bioenvironmental Science, Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
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Cockrem JF, Bahry MA, Chowdhury VS. Cortisol responses of goldfish (Carassius auratus) to air exposure, chasing, and increased water temperature. Gen Comp Endocrinol 2019; 270:18-25. [PMID: 30287190 DOI: 10.1016/j.ygcen.2018.09.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/19/2018] [Accepted: 09/29/2018] [Indexed: 10/28/2022]
Abstract
Fish can respond to stimuli from the internal or external environment with activation of the hypothalamo-pituitary-interrenal (HPI) axis and the secretion of cortisol. Stimuli that activate the HPI axis of fish include short term air exposure and increases in water temperature. The present study was conducted to determine how quickly cortisol concentrations increase in goldfish subjected to an increase in water temperature, and to compare the response to an increase in water temperature with responses to other stimuli. Plasma cortisol concentrations varied widely between individual goldfish, with concentrations ranging from 9.1 to 516.0 ng/mL in goldfish on the day of arrival from the supplier. Mean cortisol concentrations in undisturbed goldfish were low (4.5 ± 1.0 ng/mL). Mean cortisol concentrations in fish exposed to air for 3 min and in fish that experienced chasing for 10 min were markedly elevated 15 min after the beginning of the stimuli (132.6 ± 31.0 and 121.1 ± 23.9 ng/mL respectively). Mean cortisol concentrations in fish that experienced an increase in water temperature rose to 22.2 ± 7.6 ng/mL after 15 min, declined to <10 ng/mL at 30 and 60 min then increased and were elevated (79.0 ± 10.8 ng/mL) at 240 min. Cortisol measurements can be used to indicate the responsiveness of fish to changes in water temperature and goldfish will be a convenient study species for the development of studies of plasticity in responses of fish to increases in water temperature that are happening due to climate change.
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Affiliation(s)
- John F Cockrem
- School of Veterinary Science, Massey University, Palmerston North 4442, New Zealand.
| | - Mohammad A Bahry
- Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan; Department of Animal Science, Faculty of Agriculture, Balkh University, Mazar-e-Sharif, Afghanistan
| | - Vishwajit S Chowdhury
- Laboratory of Stress Physiology and Metabolism, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
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Bahry MA, Yang H, Tran PV, Do PH, Han G, Eltahan HM, Chowdhury VS, Furuse M. Reduction in voluntary food intake, but not fasting, stimulates hypothalamic gonadotropin-inhibitory hormone precursor mRNA expression in chicks under heat stress. Neuropeptides 2018; 71:90-96. [PMID: 30220422 DOI: 10.1016/j.npep.2018.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/01/2018] [Accepted: 09/02/2018] [Indexed: 01/19/2023]
Abstract
Heat stress is an issue of rising concern across the globe. Recently, we found that mRNA expression of gonadotropin-inhibitory hormone (GnIH), an orexigenic neuropeptide, was increased in the heat-exposed chick brain when food intake was reduced. The aim of the current study was to examine mRNA expression of GnIH and of the glucocorticoid receptors (GRs) in the hypothalamus as well as the plasma corticosterone (CORT) and metabolites in 14-d-old chicks exposed to a high ambient temperature (HT; 40 ± 1 °C for 1 or 5 h) or a control thermoneutral temperature (CT; 30 ± 1 °C), either with free access to food or fasted. Heat stress caused a voluntary reduction of food intake and reduced plasma triacylglycerol concentration, but increased rectal temperature and plasma CORT and glucose concentrations (P < 0.05). Heat stress also increased (P < 0.05) the expression of diencephalic GnIH mRNA in chicks when they reduced food intake voluntarily, but did not do so under fasting conditions. Although the expression of GR mRNA was not altered as a result of heat stress, its expression was decreased (P < 0.05) in fasted chicks at 5 h in comparison with fed chicks. In addition, the rectal temperature of fasted chicks was lower than that of fed chicks under both CT and HT. In conclusion, voluntary reduction of food intake caused an increase in brain GnIH mRNA expression, plasma CORT, and body temperature in chicks under heat stress. Interestingly, brain GnIH mRNA expression was not induced by heat stress in fasted chicks and was not accompanied by a decrease in rectal temperature. These results suggest that the increased expression of brain GnIH mRNA in chicks under heat stress could be a consequence of a mechanism mediated by the voluntary reduction of food intake, but that it is not a consequence of fasting.
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Affiliation(s)
- Mohammad A Bahry
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Hui Yang
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Phuong V Tran
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Phong H Do
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Guofeng Han
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Hatem M Eltahan
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan; Visiting Researcher from Animal Production Research Institute, Agriculture Research Center, Agriculture Ministry, and Division for Poultry Production, Faculty of Agriculture, Kafr-Elsheikh University, Egypt
| | - Vishwajit S Chowdhury
- Laboratory of Stress Physiology and Metabolism, Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan.
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 819-0395, Japan
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Eltahan HM, Bahry MA, Yang H, Han G, Nguyen LTN, Ikeda H, Ali MN, Amber KA, Furuse M, Chowdhury VS. Central NPY-Y5 sub-receptor partially functions as a mediator of NPY-induced hypothermia and affords thermotolerance in heat-exposed fasted chicks. Physiol Rep 2018; 5. [PMID: 29208684 PMCID: PMC5727273 DOI: 10.14814/phy2.13511] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 10/30/2017] [Indexed: 12/26/2022] Open
Abstract
Exposure of chicks to a high ambient temperature (HT) has previously been shown to increase neuropeptide Y (NPY) mRNA expression in the brain. Furthermore, it was found that NPY has anti‐stress functions in heat‐exposed fasted chicks. The aim of the study was to reveal the role of central administration of NPY on thermotolerance ability and the induction of heat‐shock protein (HSP) and NPY sub‐receptors (NPYSRs) in fasted chicks with the contribution of plasma metabolite changes. Six‐ or seven‐day‐old chicks were centrally injected with 0 or 375 pmol of NPY and exposed to either HT (35 ± 1°C) or control thermoneutral temperature (CT: 30 ± 1°C) for 60 min while fasted. NPY reduced body temperature under both CT and HT. NPY enhanced the brain mRNA expression of HSP‐70 and ‐90, as well as of NPYSRs‐Y5, ‐Y6, and ‐Y7, but not ‐Y1, ‐Y2, and ‐Y4, under CT and HT. A coinjection of an NPYSR‐Y5 antagonist (CGP71683) and NPY (375 pmol) attenuated the NPY‐induced hypothermia. Furthermore, central NPY decreased plasma glucose and triacylglycerol under CT and HT and kept plasma corticosterone and epinephrine lower under HT. NPY increased plasma taurine and anserine concentrations. In conclusion, brain NPYSR‐Y5 partially afforded protective thermotolerance in heat‐exposed fasted chicks. The NPY‐mediated reduction in plasma glucose and stress hormone levels and the increase in free amino acids in plasma further suggest that NPY might potentially play a role in minimizing heat stress in fasted chicks.
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Affiliation(s)
- Hatem M Eltahan
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Mohammad A Bahry
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Hui Yang
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Guofeng Han
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Linh T N Nguyen
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Hiromi Ikeda
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Mohamed N Ali
- Agriculture Research Center, Animal Production Research Institute, Agriculture Ministry, Cairo, Egypt
| | - Khairy A Amber
- Division for Poultry Production, Faculty of Agriculture, Kafr-Elsheikh University, Kafr-Elsheikh, Egypt
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, Japan
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Nishigawa T, Nagamachi S, Ikeda H, Chowdhury VS, Furuse M. Restraint stress in lactating mice alters the levels of sulfur-containing amino acids in milk. J Vet Med Sci 2018; 80:503-509. [PMID: 29367519 PMCID: PMC5880834 DOI: 10.1292/jvms.17-0661] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
It is well known that maternal stress during the gestation and lactation periods induces abnormal behavior in the offspring and causes a lowering of the offspring’s body weight. Various causes of maternal stress during
the lactation period, relating to, for example, maternal nutritional status and reduced maternal care, have been considered. However, little is known about the effects on milk of maternal stress during the lactation
period. The current study aimed to determine whether free amino acids, with special reference to sulfur-containing amino acids in milk, are altered by restraint stress in lactating mice. The dams in the stress group were
restrained for 30 min at postnatal days 2, 4, 6, 8, 10 and 12. Restraint stress caused a reduction in the body weight of lactating mice. The concentration of taurine and cystathionine in milk was significantly higher in
the stress group, though stress did not alter their concentration in maternal plasma. The ratio of taurine concentration in milk to its concentration in maternal plasma was significantly higher in the stress group,
suggesting that stress promoted taurine transportation into milk. Furthermore, taurine concentration in milk was positively correlated with corticosterone levels in plasma. In conclusion, restraint stress in lactating
mice caused the changes in the metabolism and in the transportation of sulfur-containing amino acids and resulted in higher taurine concentration in milk. Taurine concentration in milk could also be a good parameter for
determining stress status in dams.
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Affiliation(s)
- Takuma Nishigawa
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
| | - Satsuki Nagamachi
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
| | - Hiromi Ikeda
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
| | - Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
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Han G, Yang H, Bungo T, Ikeda H, Wang Y, Nguyen LT, Eltahan HM, Furuse M, Chowdhury VS. In ovo L -leucine administration stimulates lipid metabolisms in heat-exposed male, but not female, chicks to afford thermotolerance. J Therm Biol 2018; 71:74-82. [DOI: 10.1016/j.jtherbio.2017.10.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 10/31/2017] [Accepted: 10/31/2017] [Indexed: 01/05/2023]
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Chowdhury VS, Han G, Bahry MA, Tran PV, Do PH, Yang H, Furuse M. L-Citrulline acts as potential hypothermic agent to afford thermotolerance in chicks. J Therm Biol 2017; 69:163-170. [DOI: 10.1016/j.jtherbio.2017.07.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 07/18/2017] [Accepted: 07/18/2017] [Indexed: 11/25/2022]
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Bahry MA, Chowdhury VS, Yang H, Tran PV, Do PH, Han G, Ikeda H, Cockrem JF, Furuse M. Central administration of neuropeptide Y differentially regulates monoamines and corticosterone in heat-exposed fed and fasted chicks. Neuropeptides 2017; 62:93-100. [PMID: 27979380 DOI: 10.1016/j.npep.2016.11.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 11/17/2016] [Accepted: 11/27/2016] [Indexed: 12/23/2022]
Abstract
Recently, we demonstrated that brain neuropeptide Y (NPY) mRNA expression was increased in heat exposed chicks. However, the functions of brain NPY during heat stress are unknown. This study was conducted to investigate whether centrally administered NPY affects food intake, rectal temperature, monoamines, stress hormones and plasma metabolites in chicks under high ambient temperatures (HT). Five or six-day-old chicks were centrally injected with 0, 188 or 375pmol of NPY and exposed to either HT (35±1°C) or a control thermoneutral temperature (CT; 30±1°C) for 3h whilst fed or fasted. NPY increased food intake under both CT and HT. NPY reduced rectal temperature 1 and 2h after central administration under CT, but not under HT. Interestingly, NPY decreased brain serotonin and norepinephrine concentrations in fed chicks, but increased concentrations of brain dopamine and its metabolites in fasted and fed chicks, respectively. Plasma epinephrine was decreased by NPY in fed chicks, but plasma concentrations of norepinephrine and epinephrine were increased significantly by NPY in fasted-heat exposed chicks. Furthermore, NPY significantly reduced plasma corticosterone concentrations in fasted chicks. Plasma glucose and triacylglycerol were increased by NPY in fed chicks, but triacylglycerol declined in fasted NPY-injected chicks. In conclusion, brain NPY may attenuate the reduction of food intake during heat stress and the increased brain NPY might be a potential regulator of the monoamines and corticosterone to modulate stress response in heat-exposed chicks.
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Affiliation(s)
- Mohammad A Bahry
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan.
| | - Hui Yang
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Phuong V Tran
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Phong H Do
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Guofeng Han
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Hiromi Ikeda
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - John F Cockrem
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North 4442, New Zealand
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
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Ikeda H, Nagasawa M, Yamaguchi T, Minaminaka K, Goda R, Chowdhury VS, Yasuo S, Furuse M. Disparities in activity levels and learning ability between Djungarian hamster ( Phodopus sungorus) and Roborovskii hamster ( Phodopus roborovskii). Anim Sci J 2017; 88:533-545. [DOI: 10.1111/asj.12659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/10/2016] [Accepted: 04/13/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Hiromi Ikeda
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture; Kyushu University; Fukuoka Japan
| | - Mao Nagasawa
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture; Kyushu University; Fukuoka Japan
| | - Takeshi Yamaguchi
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture; Kyushu University; Fukuoka Japan
| | - Kimie Minaminaka
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture; Kyushu University; Fukuoka Japan
| | - Ryosei Goda
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture; Kyushu University; Fukuoka Japan
| | - Vishwajit S. Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science; Kyushu University; Fukuoka Japan
| | - Shinobu Yasuo
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture; Kyushu University; Fukuoka Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture; Kyushu University; Fukuoka Japan
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Yang H, Chowdhury VS, Bahry MA, Tran PV, Do PH, Han G, Zhang R, Tagashira H, Tsubata M, Furuse M. Chronic oral administration of pine bark extract (flavangenol) attenuates brain and liver mRNA expressions of HSPs in heat-exposed chicks. J Therm Biol 2016; 60:140-8. [DOI: 10.1016/j.jtherbio.2016.06.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 05/25/2016] [Accepted: 06/22/2016] [Indexed: 12/20/2022]
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McConn BR, Yi J, Gilbert ER, Siegel PB, Chowdhury VS, Furuse M, Cline MA. Stimulation of food intake after central administration of gonadotropin-inhibitory hormone is similar in genetically selected low and high body weight lines of chickens. Gen Comp Endocrinol 2016; 232:96-100. [PMID: 26764213 DOI: 10.1016/j.ygcen.2016.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 12/22/2015] [Accepted: 01/04/2016] [Indexed: 11/16/2022]
Abstract
Gonadotropin-inhibitory hormone (GnIH), first isolated from the brain of the Japanese quail (Coturnix japonica), when centrally administered exerts orexigenic effects in birds. However, the precise mechanisms mediating this effect are poorly understood and limited information is available on this effect in models of body weight dysfunction. Thus, the purpose of the present study was to investigate appetite-associated effects of GnIH in chicks from lines that have been selected for either low or high body weight, and are anorexic or become obese, respectively. Central GnIH injection increased food intake in both lines with a similar magnitude of response. There was no effect on water intake. Hypothalamic GnIH mRNA was greater in the low than high weight lines and was greater in the fasted than fed chicks. GnIH receptor mRNA was similarly expressed in both lines, and was greater in fed than fasted chicks. Thus, although selection for body weight did not alter the effect of GnIH on feeding, fasting increased GnIH mRNA in both lines implying that it is an innate hunger factor.
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Affiliation(s)
- Betty R McConn
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Jiaqing Yi
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Elizabeth R Gilbert
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Paul B Siegel
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Mitsuhiro Furuse
- Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
| | - Mark A Cline
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, United States.
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Tran PV, Chowdhury VS, Do PH, Bahry MA, Yang H, Furuse M. L-Ornithine is a potential acute satiety signal in the brain of neonatal chicks. Physiol Behav 2015; 155:141-8. [PMID: 26687893 DOI: 10.1016/j.physbeh.2015.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 12/04/2015] [Accepted: 12/10/2015] [Indexed: 10/22/2022]
Abstract
Recently, we observed that neonatal chicks exhibit feeding behavior characterized by frequent food intake and short resting intervals, with changes detected in the brain amino acid and monoamine concentrations. In this study, we aimed to clarify further the relationship between the appetite of neonatal chicks and brain amino acid metabolism. In Experiment 1, changes were investigated in free amino acids in the brain under conditions of regulated appetite induced by fasting and subsequent short-term re-feeding. Chicks (5 days old) were distributed into four treatment groups--namely, fasting for 3h, and fasting for 3h followed by re-feeding for 10, 20 or 30 min. Brain samples were collected after treatment to analyze free amino acid concentrations. Amino adipic acid and proline in all brain parts as well as arginine and ornithine in all brain parts--except mesencephalic arginine and cerebellar ornithine--were increased in a time-dependent manner following re-feeding. In Experiment 2, we further examined the effect of exogenous administration of some amino acids altered in association with feeding behavior in Experiment 1. We chose L-arginine and its functional metabolite, L-ornithine, to analyze their effects on food intake in chicks. Intracerebroventricular injection (2 μmol) of L-ornithine, but not L-arginine, significantly inhibited food intake in neonatal chicks. In Experiment 3, we found that central injection of L-ornithine (2, 4, and 6 μmol) dose-dependently suppressed food intake in chicks. These results suggested that L-ornithine may have an important role in the control of food intake as an acute satiety signal in the neonatal chick brain.
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Affiliation(s)
- Phuong V Tran
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Phong H Do
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Mohammad A Bahry
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Hui Yang
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka 812-8581, Japan.
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Tran PV, Chowdhury VS, Nagasawa M, Furuse M. Changes in free amino acid and monoamine concentrations in the chick brain associated with feeding behavior. Springerplus 2015; 4:252. [PMID: 26191470 PMCID: PMC4501338 DOI: 10.1186/s40064-015-1058-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 05/26/2015] [Indexed: 11/20/2022]
Abstract
Domesticated chicks are precocial and therefore have relatively well-developed feeding behavior. The role of hypothalamic neuropeptides in food-intake regulation in chicks has been reported for decades. However, we hypothesized that nutrients and their metabolites in the brain may be involved in food intake in chicks because these animals exhibit a very frequent feeding pattern. Therefore, the purpose of this study was to examine the feeding behavior of chicks as well as the associated changes in free amino acid and monoamine concentrations in the chick brain. The feeding behavior of chicks was recorded continuously for 6 h. The next day, brain and blood samples were collected when the chicks either attempted to have food (hungry group) or turned food down (satiated group), in order to analyze the concentrations of the free amino acids and monoamines. We confirmed that the feeding behavior of neonatal chicks was characterized by short resting periods between very brief times spent on food intake. Several free amino acids in the mesencephalon were significantly lower in the satiated group than in the hungry group, while l-histidine and l-glutamine were significantly higher. Notably, there was no change in the free amino acid concentrations in other brain regions or plasma. As for monoamines, serotonin and norepinephrine were significantly lower in the mesencephalon of the hungry group compared with the satiated group, but 5 hydroxyindolacetic acid (5-HIAA) was higher. In addition, serotonin and norepinephrine levels were significantly higher in the brain stem of the hungry chicks compared with the satiated group, but levels of 5-HIAA and homovanillic acid were lower. Levels of both dopamine and its metabolite, 3,4-dihydroxyphenylacetic acid, were significantly higher in the diencephalon and telencephalon of the chicks in the hungry group. In conclusion, the changes in the free amino acids and monoamines in the brain may have some role in the feeding behavior of neonatal chicks.
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Affiliation(s)
- Phuong V Tran
- Faculty of Agriculture, Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 812-8581 Japan
| | - Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395 Japan
| | - Mao Nagasawa
- Faculty of Agriculture, Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 812-8581 Japan
| | - Mitsuhiro Furuse
- Faculty of Agriculture, Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, Fukuoka, 812-8581 Japan
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46
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Ito K, Bahry MA, Hui Y, Furuse M, Chowdhury VS. Acute heat stress up-regulates neuropeptide Y precursor mRNA expression and alters brain and plasma concentrations of free amino acids in chicks. Comp Biochem Physiol A Mol Integr Physiol 2015; 187:13-9. [PMID: 25933935 DOI: 10.1016/j.cbpa.2015.04.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 04/21/2015] [Accepted: 04/21/2015] [Indexed: 01/03/2023]
Abstract
Heat stress causes an increase in body temperature and reduced food intake in chickens. Several neuropeptides and amino acids play a vital role in the regulation of food intake. However, the responses of neuropeptides and amino acids to heat-stress-induced food-intake regulation are poorly understood. In the current study, the hypothalamic mRNA expression of some neuropeptides related to food intake and the content of free amino acids in the brain and plasma was examined in 14-day-old chicks exposed to a high ambient temperature (HT; 40±1 °C for 2 or 5 h) or to a control thermoneutral temperature (CT; 30±1 °C). HT significantly increased rectal temperature and plasma corticosterone level and suppressed food intake. HT also increased the expression of neuropeptide Y (NPY) and agouti-signaling protein (ASIP) precursor mRNA, while no change was observed in pro-opiomelanocortin, cholecystokinin, ghrelin, or corticotropin-releasing hormone precursor mRNA. It was further found that the diencephalic content of free amino acids - namely, tryptophan, leucine, isoleucine, valine and serine - was significantly higher in HT chicks with some alterations in their plasma amino acids in comparison with CT chicks. The induction of NPY and ASIP expression and the alteration of some free amino acids during HT suggest that these changes can be the results or causes the suppression of food intake.
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Affiliation(s)
- Kentaro Ito
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
| | - Mohammad A Bahry
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
| | - Yang Hui
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
| | - Vishwajit S Chowdhury
- Division for Experimental Natural Science, Faculty of Arts and Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395, Japan.
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McConn B, Wang G, Yi J, Gilbert ER, Osugi T, Ubuka T, Tsutsui K, Chowdhury VS, Furuse M, Cline MA. Gonadotropin-inhibitory hormone-stimulation of food intake is mediated by hypothalamic effects in chicks. Neuropeptides 2014; 48:327-34. [PMID: 25305807 DOI: 10.1016/j.npep.2014.09.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/11/2014] [Accepted: 09/01/2014] [Indexed: 10/24/2022]
Abstract
Gonadotropin-inhibitory hormone (GnIH), a 12 amino acid peptide, is expressed in the avian brain and inhibits luteinizing hormone secretion. Additionally, exogenous injection of GnIH causes increased food intake of chicks although the central mechanism mediating this response is poorly understood. Hence, the purpose of our study was to elucidate the central mechanism of the GnIH orexigenic response using 12 day post hatch layer-type chicks as models. Firstly, via mass spectrometry we deduced the chicken GnIH amino acid sequence: SIRPSAYLPLRFamide. Following this we used chicken GnIH to demonstrate that intracerebroventricular (ICV) injection of 2.6 and 7.8 nmol causes increased food intake up to 150 min following injection with no effect on water intake. The number of c-Fos immunoreactive cells was quantified in appetite-associated hypothalamic nuclei following ICV GnIH and only the lateral hypothalamic area (LHA) had an increase of c-Fos positive neurons. From whole hypothalamus samples following ICV GnIH injection abundance of several appetite-associated mRNA was quantified which demonstrated that mRNA for neuropeptide Y (NPY) was increased while mRNA for proopiomelanocortin (POMC) was decreased. This was not the case for mRNA abundance in isolated LHA where NPY and POMC were not affected but melanin-concentrating hormone (MCH) mRNA was increased. A comprehensive behavior analysis was conducted after ICV GnIH injection which demonstrated a variety of behaviors unrelated to appetite were affected. In sum, these results implicate activation of the LHA in the GnIH orexigenic response and NPY, POMC and MCH are likely also involved.
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Affiliation(s)
- Betty McConn
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Guoqing Wang
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Jiaqing Yi
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Elizabeth R Gilbert
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Tomohiro Osugi
- Laboratory of Integrative Brain Sciences, Department of Biology, Waseda University, Tokyo 162-8480, Japan; Suntory Foundation for Life Sciences, Bioorganic Research Institute, Osaka, 618-8503, Japan
| | - Takayoshi Ubuka
- Laboratory of Integrative Brain Sciences, Department of Biology, Waseda University, Tokyo 162-8480, Japan
| | - Kazuyoshi Tsutsui
- Laboratory of Integrative Brain Sciences, Department of Biology, Waseda University, Tokyo 162-8480, Japan
| | - Vishwajit S Chowdhury
- Division for Arts and Science, Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Mitsuhiro Furuse
- Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
| | - Mark A Cline
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
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Yachiguchi K, Matsumoto N, Haga Y, Suzuki M, Matsumura C, Tsurukawa M, Okuno T, Nakano T, Kawabe K, Kitamura KI, Toriba A, Hayakawa K, Chowdhury VS, Endo M, Chiba A, Sekiguchi T, Nakano M, Tabuchi Y, Kondo T, Wada S, Mishima H, Hattori A, Suzuki N. Polychlorinated biphenyl (118) activates osteoclasts and induces bone resorption in goldfish. Environ Sci Pollut Res Int 2014; 21:6365-72. [PMID: 23247518 PMCID: PMC4021165 DOI: 10.1007/s11356-012-1347-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 11/16/2012] [Indexed: 05/15/2023]
Abstract
To analyze the effect of polychlorinated biphenyl (PCB) 118 on fish bone metabolism, we examined osteoclastic and osteoblastic activities, as well as plasma calcium levels, in the scales of PCB (118)-injected goldfish. In addition, effect of PCB (118) on osteoclasts and osteoblasts was investigated in vitro. Immature goldfish, in which the endogenous effects of sex steroids are negligible, were used. PCB (118) was solubilized in dimethyl sulfoxide at a concentration of 10 ppm. At 1 and 2 days after PCB (118) injection (100 ng/g body weight), both osteoclastic and osteoblastic activities, and plasma calcium levels were measured. In an in vitro study, then, both osteoclastic and osteoblastic activities as well as each marker mRNA expression were examined. At 2 days, scale osteoclastic activity in PCB (118)-injected goldfish increased significantly, while osteoblastic activity did not change significantly. Corresponding to osteoclastic activity, plasma calcium levels increased significantly at 2 days after PCB (118) administration. Osteoclastic activation also occurred in the marker enzyme activities and mRNA expressions in vitro. Thus, we conclude that PCB (118) disrupts bone metabolism in goldfish both in vivo and in vitro experiments.
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Affiliation(s)
- Koji Yachiguchi
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-cho, Housu-gun, Ishikawa 927-0553 Japan
| | - Noriko Matsumoto
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-cho, Housu-gun, Ishikawa 927-0553 Japan
| | - Yuki Haga
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo 654-0037 Japan
| | - Motoharu Suzuki
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo 654-0037 Japan
| | - Chisato Matsumura
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo 654-0037 Japan
| | - Masahiro Tsurukawa
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo 654-0037 Japan
| | - Toshihiro Okuno
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo 654-0037 Japan
| | - Takeshi Nakano
- Hyogo Prefectural Institute of Environmental Sciences, Kobe, Hyogo 654-0037 Japan
| | - Kimi Kawabe
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Ishikawa 920-1192 Japan
| | - Kei-ichiro Kitamura
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kodatsuno, Ishikawa 920-0942 Japan
| | - Akira Toriba
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Ishikawa 920-1192 Japan
| | - Kazuichi Hayakawa
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Ishikawa 920-1192 Japan
| | - Vishwajit S. Chowdhury
- International Education Center, Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581 Japan
| | - Masato Endo
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Minato-ku, Tokyo 108-8477 Japan
| | - Atsuhiko Chiba
- Department of Materials and Life Sciences, Sophia University, Tokyo, 102-8554 Japan
| | - Toshio Sekiguchi
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-cho, Housu-gun, Ishikawa 927-0553 Japan
| | - Masaki Nakano
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Chiba 272-0827 Japan
| | - Yoshiaki Tabuchi
- Division of Molecular Genetics Research, Life Science Research Center, University of Toyama, Sugitani, Toyama 930-0194 Japan
| | - Takashi Kondo
- Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194 Japan
| | - Shigehito Wada
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Toyama, Sugitani, Toyama 930-0194 Japan
| | - Hiroyuki Mishima
- Department of Human Life Sciences, Kochi Gakuen College, Kochi, 780-0955 Japan
| | - Atsuhiko Hattori
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Chiba 272-0827 Japan
| | - Nobuo Suzuki
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-cho, Housu-gun, Ishikawa 927-0553 Japan
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Chowdhury VS, Ubuka T, Tsutsui K. Review: Melatonin stimulates the synthesis and release of gonadotropin-inhibitory hormone in birds. Gen Comp Endocrinol 2013; 181:175-8. [PMID: 22906422 DOI: 10.1016/j.ygcen.2012.08.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 07/31/2012] [Accepted: 08/03/2012] [Indexed: 11/22/2022]
Abstract
Gonadotropin-inhibitory hormone (GnIH), a neuropeptide that inhibits gonadotropin synthesis and release, was first identified in the quail hypothalamus. To understand the physiological role of GnIH, this review will demonstrate the mechanisms that regulate GnIH synthesis and release. Pinealectomy (Px) combined with orbital enucleation (Ex) decreased the synthesis of GnIH precursor mRNA and content of mature GnIH peptide in the diencephalon. Melatonin administration to Px plus Ex birds caused a dose-dependent increase in the synthesis of GnIH precursor mRNA and production of mature peptide. A melatonin receptor subtype, Mel(1c,) was expressed in GnIH-immunoreactive neurons, suggesting direct action of melatonin on GnIH neurons. Melatonin administration further increased GnIH release in a dose-dependent manner from hypothalamic explants in vitro. GnIH mRNA expression and GnIH release during the dark period were greater than those during the light period in explants from quail exposed to long-day photoperiods. Conversely, plasma luteinizing hormone (LH) concentration decreased during the dark period. This review summarizes that melatonin appears to act on GnIH neurons in stimulating not only GnIH synthesis but also its release, thus inhibiting plasma LH concentration in birds.
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Affiliation(s)
- Vishwajit S Chowdhury
- International Education Center, Laboratory of Regulation in Metabolism and Behavior, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 812-8581, Japan
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50
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Chowdhury VS, Tomonaga S, Nishimura S, Tabata S, Cockrem JF, Tsutsui K, Furuse M. Hypothalamic gonadotropin-inhibitory hormone precursor mRNA is increased during depressed food intake in heat-exposed chicks. Comp Biochem Physiol A Mol Integr Physiol 2012; 162:227-33. [DOI: 10.1016/j.cbpa.2012.03.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 03/13/2012] [Accepted: 03/13/2012] [Indexed: 10/28/2022]
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