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Choi SY, Kim TH, Hong MW, Park TS, Lee H, Lee SJ. Transcriptomic alterations induced by aflatoxin B1 and ochratoxin A in LMH cell line. Poult Sci 2020; 99:5265-5274. [PMID: 33142442 PMCID: PMC7647754 DOI: 10.1016/j.psj.2020.05.058] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/09/2020] [Accepted: 05/22/2020] [Indexed: 12/23/2022] Open
Abstract
Aflatoxin B1 (AFB1) and ochratoxin A (OTA), which are toxic metabolites of ubiquitously occurring molds, show diverse toxicological effects such as hepatotoxicity, genotoxicity, and immunotoxicity in human and animals. Despite poultry show sensitivity to AFB1 and OTA, the mechanism of these mycotoxins in chickens has not been fully investigated. Here, we aimed to elucidate the molecular mechanism induced by AFB1 and/or OTA in chicken hepatic cells using transcriptomic analysis. Aflatoxin B1 and OTA induced cytotoxic effects in a dose-dependent manner at 48 h after exposure. Furthermore, correlation effect indicated an antagonism between the 2 toxins. The mRNA sequencing of AFB1-treated or OTA-treated chicken hepatocarcinoma and functional analysis revealed the pathways that were commonly regulated by both mycotoxins, especially PPAR signaling, focal adhesion, and MAPK signaling. Based on these findings, a possible hypothesis is that AFB1 and OTA have similar toxic mechanisms and compete for some steps in the chicken liver, and it is expected that the mycotoxins would have antagonistic effects. In addition, genes identified through transcriptome analysis provide candidates for further study of AFB1 and OTA toxicity and targets for efforts to improve the health of chickens exposed to mycotoxins.
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Affiliation(s)
- So-Young Choi
- Department of Animal Life Science, Kangwon National University, Chuncheon-si, Gangwon-do 24341, Korea
| | - Tae Hyun Kim
- Department of Animal Science, University of California, Davis, Davis, CA 95616, USA
| | - Min-Wook Hong
- Department of Animal Life Science, Kangwon National University, Chuncheon-si, Gangwon-do 24341, Korea
| | - Tae Sub Park
- Graduate School of International Agricultural Technology and Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang-gun, Gangwon-do 25354, Korea
| | - Hyojeong Lee
- Department of Animal Life Science, Kangwon National University, Chuncheon-si, Gangwon-do 24341, Korea
| | - Sung-Jin Lee
- Department of Animal Life Science, Kangwon National University, Chuncheon-si, Gangwon-do 24341, Korea.
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2
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Dong TS, Vu JP, Oh S, Sanford D, Pisegna JR, Germano P. Intraperitoneal Treatment of Kisspeptin Suppresses Appetite and Energy Expenditure and Alters Gastrointestinal Hormones in Mice. Dig Dis Sci 2020; 65:2254-2263. [PMID: 31729619 DOI: 10.1007/s10620-019-05950-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 11/07/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Kisspeptin is a neuropeptide that plays an integral role in the regulation of energy intake and reproduction by acting centrally on the hypothalamus-pituitary-gonadal axis. Our current study explores for the first time the effects of a pharmacological treatment of intraperitoneal kisspeptin-10 on murine feeding behavior, respirometry parameters, energy balance, and metabolic hormones. METHODS Two groups (n = 16) of age- and sex-matched C57BL/6 wild-type adult mice were individually housed in metabolic cages and intraperitoneally injected with either kisspeptin-10 (2 nmol in 200 µl of saline) (10 µM) or vehicle before the beginning of a dark-phase cycle. Microstructure of feeding and drinking behavior, respirometry gases, respiratory quotient (RQ), total energy expenditure (TEE), metabolic hormones, oral glucose tolerance, and lipid profiles were measured. RESULTS Intraperitoneal treatment with kisspeptin-10 caused a significant reduction in food intake, meal frequency, meal size, and eating rate. Kisspeptin-10 significantly decreased TEE during both the dark and light phase cycles, while also increasing the RQ during the dark-phase cycle. In addition, mice injected with kisspeptin-10 had significantly higher plasma levels of insulin (343.8 pg/ml vs. 106.4 pg/ml; p = 0.005), leptin (855.5 pg/ml vs. 173.1 pg/ml; p = 0.02), resistin (9411.1 pg/ml vs. 4116.5 pg/ml; p = 0.001), and HDL (147.6 mg/dl vs 97.1 mg/dl; p = 0.04). CONCLUSION A pharmacological dose of kisspeptin-10 significantly altered metabolism by suppressing food intake, meal size, eating rate, and TEE while increasing the RQ. These changes were linked to increased levels of insulin, leptin, resistin, and HDL. The current results suggest that a peripheral kisspeptin treatment could alter metabolism and energy homeostasis by suppressing appetite, food intake, and fat accumulation.
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Affiliation(s)
- Tien S Dong
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
| | - John P Vu
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, Department of Medicine and Human Genetics, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,AbbVie, Sunnyvale, CA, USA
| | - Suwan Oh
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, Department of Medicine and Human Genetics, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Daniel Sanford
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, Department of Medicine and Human Genetics, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Joseph R Pisegna
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, Department of Medicine and Human Genetics, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Patrizia Germano
- Research Service, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,CURE/Digestive Diseases Research Center, Department of Medicine, University of California, Los Angeles, CA, USA.,Division of Pulmonary and Critical Care, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA
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Abou Khalil NS, Mahmoud GB. Reproductive, antioxidant and metabolic responses of Ossimi rams to kisspeptin. Theriogenology 2019; 142:414-420. [PMID: 31711707 DOI: 10.1016/j.theriogenology.2019.10.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 10/21/2019] [Accepted: 10/31/2019] [Indexed: 02/06/2023]
Abstract
The aim of this study was to evaluate the potential reproductive, antioxidant and metabolic effects of kisspeptin-10 (KP-10) on Ossimi rams. Twelve Ossimi rams (1.5-2 years old) were divided randomly into two groups (six per group). The first one served as a control group, while the second one served as a treated group. Rams of the treated group were injected once weekly with KP-10 (5 μg/kg body weight) for one month. There were no significant differences in all measured parameters between rams of control group at pre-treatment period and those at post-treatment period. However, most examined parameters in the same rams in the treated group were affected by injection of KP-10 when comparing pre-treatment values in treated group with its post-treatment values. At the pre-treatment period, there were no significant differences between the treated and control groups regarding semen pH, mass motility, sperm concentration/mL, live and dead spermatozoa, total sperm abnormality, testosterone and oxidative stress and metabolic parameters. However, all semen characteristics were significantly improved in the treated group compared with the control group at the post-treatment period and in the treated group at the post-treatment period compared with that at the pre-treatment period. In addition, scrotal circumference, ejaculate volume and total sperm concentration/ejaculate showed higher significant improvements when comparing the treated group with the control one at the post-treatment period than when comparing the two groups at the pre-treatment period and also when comparing the treated group at the post-treatment period with that at the pre-treatment period. Serum testosterone, total antioxidant capacity, lipid peroxides, nitric oxide, total protein, albumin, glucose and high density lipoprotein-cholesterol levels significantly increased when comparing the treated group with the control one at the post-treatment period and also when comparing the treated group at the post-treatment period with that at the pre-treatment period. In conclusion, KP-10 led to potential improvement in the reproductive efficacy and metabolic capacity of Ossimi ram.
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Affiliation(s)
- Nasser S Abou Khalil
- Department of Medical Physiology, Faculty of Medicine, Assiut University, Assiut, 71526, Egypt.
| | - Gamal B Mahmoud
- Department of Animal Production, Faculty of Agriculture, Assiut University, Assiut, 71526, Egypt.
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Pruszyńska-Oszmałek E, Kołodziejski PA, Sassek M, Sliwowska JH. Kisspeptin-10 inhibits proliferation and regulates lipolysis and lipogenesis processes in 3T3-L1 cells and isolated rat adipocytes. Endocrine 2017; 56:54-64. [PMID: 28194651 DOI: 10.1007/s12020-017-1248-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 01/20/2017] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Kisspeptin, which is encoded by the KISS1 gene and acts via GPR54, plays a role in the regulation of reproductive functions. Expression of KISS1 and GRPR54 has been found in peripheral tissues, including adipose tissue, and was shown to be influenced by metabolic status. PURPOSE We hypothesized that kisspeptin could be involved in regulation of lipid metabolism in the mouse 3T3-L1 cell line and in isolated rat adipocytes. METHODS First, we characterized expression profiles of KISS1 and GPR54 mRNA and proteins in adipose cells isolated from male rats. Secondly, we studied the effects of kisspeptin-10 on cell proliferation and survival in 3T3-L1 cells. Thirdly, we assessed the rapid action of kisspeptin-10 on lipid metabolism and glucose uptake using 3T3-L1 cells and rat primary adipocytes. Finally, we examined the effects of kisspeptin-10 on the secretion of leptin and adiponectin in rat adipocytes. RESULTS We have found that: (1) KISS1 and GPR54 were expressed in mouse 3T3-L1 cells and isolated rat adipocytes; (2) kisspeptin-10: (i) inhibited cell proliferation, viability and adipogenesis in 3T3-L1 and decreased expression of PPAR-γ and CEBPβ-genes, which are involved in the differentiation processes and adipogenesis; (ii) increased lipolysis in 3T3-L1 cells and rat adipocytes by enhancing expression of periliphin and hormone-sensitive lipase; (iii) modulated glucose uptake and lipogenesis; (iv) stimulated leptin and decreased adiponectin secretion from rat adipocytes. CONCLUSION Kisspeptin-10 could play a role in the regulation of lipid metabolism in mouse 3T3-L1 cells and rat adipocytes.
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Affiliation(s)
- Ewa Pruszyńska-Oszmałek
- Department of Animal Physiology and Biochemistry, Poznan University of Life Sciences, Wołynska 33, 60-625, Poznan, Poland
| | - Paweł A Kołodziejski
- Department of Animal Physiology and Biochemistry, Poznan University of Life Sciences, Wołynska 33, 60-625, Poznan, Poland
| | - Maciej Sassek
- Department of Animal Physiology and Biochemistry, Poznan University of Life Sciences, Wołynska 33, 60-625, Poznan, Poland
| | - Joanna H Sliwowska
- Laboratory of Neurobiology, Institute of Zoology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625, Poznan, Poland.
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Hu Y, Sun Q, Liu J, Jia Y, Cai D, Idriss AA, Omer NA, Zhao R. In ovo injection of betaine alleviates corticosterone-induced fatty liver in chickens through epigenetic modifications. Sci Rep 2017; 7:40251. [PMID: 28059170 PMCID: PMC5216338 DOI: 10.1038/srep40251] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/05/2016] [Indexed: 12/29/2022] Open
Abstract
Betaine alleviates high-fat diet-induced fatty liver and prenatal betaine programs offspring hepatic lipid metabolism. Excessive corticosterone (CORT) exposure causes fatty liver in chickens, yet it remains unknown whether and how prenatal betaine modulates the susceptibility of CORT-induced fatty liver later in life. In this study, fertilized eggs were injected with saline or betaine before incubation, and the hatchlings were raised at 8 weeks of age followed by 7 days of subcutaneous CORT injection. CORT-induced fatty liver was less severe in betaine-treated chickens, with significantly reduced oil-red staining and hepatic triglyceride content (P < 0.05). The protective effect of prenatal betaine was associated with significantly up-regulated expression of PPARα and CPT1α, as well as mitochondrial DNA (mtDNA)-encoded genes (P < 0.05). Moreover, betaine rescued CORT-induced alterations in methionine cycle genes, which coincided with modifications of CpG methylation on CPT1α gene promoter and mtDNA D-loop regions. Furthermore, the elevation of hepatic GR protein content after CORT treatment was significantly reduced (P < 0.05), while the reduction of GR binding to the control region of affected genes was significantly increased (P < 0.05), in betaine-treated chickens. These results indicate that in ovo betaine injection protects the juvenile chickens from CORT-induced fatty liver.
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Affiliation(s)
- Yun Hu
- Key Laboratory of Animal Physiology &Biochemistry, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Qinwei Sun
- Key Laboratory of Animal Physiology &Biochemistry, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Jie Liu
- Key Laboratory of Animal Physiology &Biochemistry, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Yimin Jia
- Key Laboratory of Animal Physiology &Biochemistry, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Demin Cai
- Key Laboratory of Animal Physiology &Biochemistry, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Abdulrahman A Idriss
- Key Laboratory of Animal Physiology &Biochemistry, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Nagmeldin A Omer
- Key Laboratory of Animal Physiology &Biochemistry, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Ruqian Zhao
- Key Laboratory of Animal Physiology &Biochemistry, Nanjing Agricultural University, Nanjing 210095, P. R. China.,Jiangsu Collaborative Innovation Centre of Meat Production and Processing, Quality and Safety Control, Nanjing 210095, P. R. China
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Zhu HJ, Li SJ, Pan H, Li N, Zhang DX, Wang LJ, Yang HB, Wu Q, Gong FY. The Changes of Serum Leptin and Kisspeptin Levels in Chinese Children and Adolescents in Different Pubertal Stages. Int J Endocrinol 2016; 2016:6790794. [PMID: 27990162 PMCID: PMC5136392 DOI: 10.1155/2016/6790794] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/07/2016] [Accepted: 10/11/2016] [Indexed: 11/29/2022] Open
Abstract
The aim of the study is to investigate the changes of serum leptin and kisspeptin levels in children and adolescents with different pubertal stages and nutritional states. A total of 647 Chinese children and adolescents were recruited, and serum estradiol, testosterone, pituitary gonadotropins, leptin, and kisspeptin levels were measured. The results showed that serum leptin levels of boys in T2 stage were the highest among the five stages, while they showed a gradual increase from T1 to T5 stage in girls and reached the highest in T5 stage (P < 0.05). Conversely, serum kisspeptin levels of boys were higher in T4 and T5 stages than those in T1 stage, while its levels of girls were the highest in T2 stage, 21.4% higher than those in T1 stage (P < 0.05). Both leptin and kisspeptin levels were positively correlated with BMI, WC, and weight in all boys and girls (all P < 0.05). In conclusion, kisspeptin levels were firstly found to be notably changed in pubertal stages and nutritional status in Chinese children and adolescents with a significant sexual dimorphism. Obese/overweight girls had higher kisspeptin levels, and there was a positive correlation between kisspeptin and FSH and LH and obesity-related parameters in all boys and girls.
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Affiliation(s)
- Hui juan Zhu
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Su juan Li
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Hui Pan
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Naishi Li
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Dian xi Zhang
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Lin jie Wang
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Hong bo Yang
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Qinyong Wu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Feng ying Gong
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
- *Feng ying Gong:
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Abstract
Differential lipid metabolic requirements of sexually-mature males and females may influence the regulation of lipid metabolism-associated genes and hence the content of adipose tissue. We measured the expression of eight lipid metabolism-associated genes (fatty acid synthase, FASN; acylglycerol- 3- phosphate O-acyltransferase 9, AGPAT9; peroxisomal proliferator-activated receptor γ, PPARγ; lipoprotein lipase, LPL; carnitine palmitoyl transferase 1 A, CPT1A; carnitine palmitoyl transferase 1 B, CPT1B; acyl-COA dehydrogenase long chain, ACADL; monoglyceride lipase, MGL) in eight tissues (hypothalamus, HYP; liver; heart; pectoralis major muscle, PM; gastrocnemius muscle, GAS; abdominal fat, AF; clavicular fat, CF; subcutaneous fat, SF) of five male and five female white feather chickens using real time PCR at 217 d (when the females were at peak egg production). There were no difference between sexes, nor were there sex by tissue interactions for CPT1A and MGL. In both cases expression was greater for liver than the other tissues. When interactions of sex by tissue were significant, the FASN mRNA abundance in HYP, liver, and PM was greater for females than males. There was no sexual dimorphism for any tissue for PPARγ. Overall values were greater for adipose depots than HYP and liver with muscles intermediate for AGPAT9. LPL mRNA abundance in PM and AF was greater for females than males, with the pattern reversed for heart and SF. CPT1B mRNA abundance in GAS and CF was greater for females than males, with the relationship reversed for liver. ACADL mRNA abundance in HYP, liver, and GAS was greater for females than males, and lower in PM than males. The results demonstrated that expression of lipid metablism–associated genes varies among sexes in mature chickens depending on the gene and the tissue.
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Pasquier J, Lafont AG, Rousseau K, Quérat B, Chemineau P, Dufour S. Looking for the bird Kiss: evolutionary scenario in sauropsids. BMC Evol Biol 2014; 14:30. [PMID: 24552453 PMCID: PMC4015844 DOI: 10.1186/1471-2148-14-30] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 12/05/2013] [Indexed: 01/06/2023] Open
Abstract
Background The neuropeptide Kiss and its receptor KissR are key-actors in the brain control of reproduction in mammals, where they are responsible for the stimulation of the activity of GnRH neurones. Investigation in other vertebrates revealed up to 3 Kiss and 4 KissR paralogs, originating from the two rounds of whole genome duplication in early vertebrates. In contrast, the absence of Kiss and KissR has been suggested in birds, as no homologs of these genes could be found in current genomic databases. This study aims at addressing the question of the existence, from an evolutionary perspective, of the Kisspeptin system in birds. It provides the first large-scale investigation of the Kisspeptin system in the sauropsid lineage, including ophidian, chelonian, crocodilian, and avian lineages. Results Sauropsid Kiss and KissR genes were predicted from multiple genome and transcriptome databases by TBLASTN. Phylogenetic and syntenic analyses were performed to classify predicted sauropsid Kiss and KissR genes and to re-construct the evolutionary scenarios of both gene families across the sauropsid radiation. Genome search, phylogenetic and synteny analyses, demonstrated the presence of two Kiss genes (Kiss1 and Kiss2 types) and of two KissR genes (KissR1 and KissR4 types) in the sauropsid lineage. These four genes, also present in the mammalian lineage, would have been inherited from their common amniote ancestor. In contrast, synteny analyses supported that the other Kiss and KissR paralogs are missing in sauropsids as in mammals, indicating their absence in the amniote lineage. Among sauropsids, in the avian lineage, we demonstrated the existence of a Kiss2-like gene in three bird genomes. The divergence of these avian Kiss2-like sequences from those of other vertebrates, as well as their absence in the genomes of some other birds, revealed the processes of Kiss2 gene degeneration and loss in the avian lineage. Conclusion These findings contribute to trace back the evolutionary history of the Kisspeptin system in amniotes and sauropsids, and provide the first molecular evidence of the existence and fate of a Kiss gene in birds.
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Affiliation(s)
| | | | | | | | | | - Sylvie Dufour
- Muséum National d'Histoire Naturelle, UMR Biology of Aquatic Organisms and Ecosystems (BOREA), CNRS 7208, IRD 207, UPMC, Sorbonne Universités, F-75231 Paris Cedex 05, France.
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