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Yu AC, Deng YH, Long C, Sheng XH, Wang XG, Xiao LF, Lv XZ, Chen XN, Chen L, Qi XL. High Dietary Folic Acid Supplementation Reduced the Composition of Fatty Acids and Amino Acids in Fortified Eggs. Foods 2024; 13:1048. [PMID: 38611353 PMCID: PMC11012142 DOI: 10.3390/foods13071048] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 04/14/2024] Open
Abstract
AIMS The study aimed to evaluate the effects of dietary folic acid (FA) on the production performance of laying hens, egg quality, and the nutritional differences between eggs fortified with FA and ordinary eggs. METHODS A total of 288 26-week-old Hy-Line Brown laying hens (initial body weights 1.65 ± 0.10 kg) with a similar weight and genetic background were used. A completely randomized design divided the birds into a control group and three treatment groups. Each group consisted of six replicates, with twelve chickens per replicate. Initially, all birds were fed a basal diet for 1 week. Subsequently, they were fed a basal diet supplemented with 0, 5, 10, or 15 mg/kg FA in a premix for a duration of 6 weeks. RESULTS Supplementation of FA could significantly (p < 0.05) enhance the FA content in egg yolks, particularly when 10 mg/kg was used, as it had the most effective enrichment effect. Compared to the control group, the Glu content in the 10 and 15 mg/kg FA groups showed a significant (p < 0.05) decrease. Additionally, the contents of Asp, Ile, Tyr, Phe, Cys, and Met in the 15 mg/kg FA group were significantly (p < 0.05) lower compared to the other groups. Adding FA did not have significant effects on the levels of vitamin A and vitamin E in egg yolk, but the vitamin D content in the 5 and 10 mg/kg FA groups showed a significant (p < 0.05) increase. Furthermore, the addition of FA did not have a significant effect on the levels of Cu, Fe, Mn, Se, and Zn in egg yolk. The dietary FA did not have a significant effect on the total saturated fatty acids (SFA) and polyunsaturated fatty acid (PUFA) content in egg yolk. However, the total monounsaturated fatty acid (MUFA) content in the 5 and 10 mg/kg groups significantly (p < 0.05) increased. These changes in nutritional content might be attributed to the increased very low-density lipoprotein (VLDL) protein content. The significant decrease in solute carrier family 1 Member 1 (SLC1A1), solute carrier family 1 Member 2 (SLC1A2), and solute carrier family 1 Member 3 (SLC1A3) gene expression compared to the control group appeared to be the reason for the decrease in amino acid content in egg yolk within the dietary FA group. CONCLUSION The findings suggest that the appropriate addition of FA can enhance the levels of MUFA and vitamin D in egg yolks, thereby improving their nutritional value. Excessive intake of FA can decrease the effectiveness of enriching FA in egg yolk and impact the enrichment of certain amino acids. The yolk of eggs produced by adding 10 mg/kg of FA to the feed contains the optimal amount of nutrients. This study informs consumers purchasing FA-fortified eggs.
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Affiliation(s)
- Ao-Chuan Yu
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China; (A.-C.Y.); (Y.-H.D.); (C.L.); (X.-H.S.); (X.-G.W.); (L.-F.X.)
| | - Yu-Han Deng
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China; (A.-C.Y.); (Y.-H.D.); (C.L.); (X.-H.S.); (X.-G.W.); (L.-F.X.)
| | - Cheng Long
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China; (A.-C.Y.); (Y.-H.D.); (C.L.); (X.-H.S.); (X.-G.W.); (L.-F.X.)
| | - Xi-Hui Sheng
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China; (A.-C.Y.); (Y.-H.D.); (C.L.); (X.-H.S.); (X.-G.W.); (L.-F.X.)
| | - Xiang-Guo Wang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China; (A.-C.Y.); (Y.-H.D.); (C.L.); (X.-H.S.); (X.-G.W.); (L.-F.X.)
| | - Long-Fei Xiao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China; (A.-C.Y.); (Y.-H.D.); (C.L.); (X.-H.S.); (X.-G.W.); (L.-F.X.)
| | - Xue-Ze Lv
- Department of Livestock and Poultry Products Testing, Beijing General Station of Animal Husbandry, Beijing 100107, China;
| | - Xiang-Ning Chen
- Food Science and Engineering College, Beijing University of Agriculture, Beijing 102206, China;
| | - Li Chen
- Food Science and Engineering College, Beijing University of Agriculture, Beijing 102206, China;
| | - Xiao-Long Qi
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China; (A.-C.Y.); (Y.-H.D.); (C.L.); (X.-H.S.); (X.-G.W.); (L.-F.X.)
- Key Laboratory of Agricultural Product Processing and Quality Control (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Beijing 102206, China
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Zhao ZX, Shang MY, Long C, Yao XJ, Gao XB, Guo Y, Sheng XH, Wang XG, Xing K, Xiao LF, Qi XL. α-Linolenic acid-regulated testosterone biosynthesis via activation of the JNK-SF-1 signaling pathway in primary rooster Leydig cells. Theriogenology 2023; 209:170-177. [PMID: 37393747 DOI: 10.1016/j.theriogenology.2023.06.030] [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: 01/18/2023] [Revised: 05/25/2023] [Accepted: 06/22/2023] [Indexed: 07/04/2023]
Abstract
As a functional fatty acid, α-linolenic acid (ALA) is essential in promoting animal testosterone biosynthesis. This study investigated the effects of ALA on testosterone biosynthesis and the possible mechanism underlying the signaling pathway in primary Leydig cells of the rooster. METHODS Primary rooster Leydig cells were treated with ALA (0, 20, 40, or 80 μmol/L) or pretreated with a p38 inhibitor (50 μmol/L), a c-Jun NH2-terminal kinase (JNK) inhibitor (20 μmol/L), or an extracellular signal-regulated kinase (ERK) inhibitor (20 μmol/L) before ALA treatment. Testosterone content in the conditioned culture medium was detected using an enzyme-linked immunosorbent assay (ELISA). The expression of steroidogenic enzymes and JNK-SF-1 signaling pathway factors was detected using real-time fluorescence quantitative PCR (qRT-PCR). RESULTS Supplementation with ALA significantly increased testosterone secretion within culture media (P < 0.05), and the optimized dose was 40 μmol/L. Compared with the control group, steroidogenic acute regulatory protein (StAR), cholesterol side-chain cleavage enzyme (P450scc), and 3β-hydroxysteroid dehydrogenase (3β-HSD) mRNA expression significantly increased (P < 0.05) in the 40 μmol/L ALA group; 17-hydroxylase/c17-20 lyase (P450c17) and p38 mRNA expressions were not significantly different in the 40 μmol/L ALA group; ERK and JNK mRNA expressions were significantly upregulated (P < 0.05) in 40 μmol/L ALA group. In the inhibitor group, testosterone levels were significantly downregulated (P < 0.05). Compared with the 40 μmol/L ALA group, StAR, P450scc, and P450c17 mRNA expressions were significantly decreased (P < 0.05), and 3β-HSD mRNA expression in the p38 inhibitor group did not change; StAR, P450scc, and 3β-HSD mRNA expressions were significantly decreased (P < 0.05), and P450c17 mRNA expression in ERK inhibitor group did not change; StAR, P450scc, 3β-HSD, and P450c17 mRNA expressions were significantly decreased (P < 0.05) in JNK inhibitor group. Additionally, the increased steroidogenic factor 1 (SF-1) gene expression levels induced by ALA were reversed when the cells were pre-incubated with JNK and ERK inhibitors. The levels in the JNK inhibitor group were significantly lower than those in the control group (P < 0.05). CONCLUSION ALA may promote testosterone biosynthesis by activating the JNK-SF-1 signaling pathway to upregulate StAR, P450scc, 3β-HSD, and P450c17 expression in primary rooster Leydig cells.
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Affiliation(s)
- Zhi-Xian Zhao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Ming-Yu Shang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China; Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Cheng Long
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Xue-Jun Yao
- Changping District Animal Disease Prevention and Control Center, Beijing, 102299, China
| | - Xiao-Bo Gao
- Changping District Animal Disease Prevention and Control Center, Beijing, 102299, China
| | - Yong Guo
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Xi-Hui Sheng
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Xiang-Guo Wang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Kai Xing
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Long-Fei Xiao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Xiao-Long Qi
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China.
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Sheng XH, Yu G, Zhang NN, He L, Yin JY, Lin WJ, Wang ZH, Cheng DS, Wu XF, Wang NS. [Efficacy of intravenous drug information management system on the improvement of anemia in maintenance hemodialysis patients]. Zhonghua Yi Xue Za Zhi 2023; 103:1055-1059. [PMID: 37032156 DOI: 10.3760/cma.j.cn112137-20220914-01941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Objective: To investigate the effect of information management of intravenous drugs on anemia in maintenance hemodialysis patients. Methods: The information management of intravenous drugs was a management system developed by the Hemodialysis Center of Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital in April 2020. The parameters six months before and after the use of the information management system were retrospectively collected and compared, including the rate of reaching the standard of hemoglobin, ferritin, transferrin saturation rate and the incidence of cardiovascular events. Specifically, the control stage was from October 2019 to March 2020, which was before the use of information management, and the study stage was from April to September 2020, which was after the use of information management. Results: There were 285 patients (190 males and 95 females) included in the control stage, with an average age of (62.4±13.2) years, while 278 patients (193 males and 85 females) were included in the study stage, with an average age of (62.8±13.2) years. Compared with the control stage, the rate of reaching the standard of hemoglobin [47.8% (797/1 668) vs 40.2% (687/1 710), P<0.001], ferritin [39.0% (217/556) vs 31.2% (178/570), P=0.006], and transferrin saturation [64.7% (360/556) vs 58.6% (334/570), P=0.034] increased in the study stage. The incidence of cardiovascular events in the study stage was 11.2% (31/278), which was significantly lower than that in the control stage [16.5% (47/285)] (P=0.043). Conclusion: The information management of intravenous drugs in the hemodialysis center may help improve the anemia status in maintenance hemodialysis patients.
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Affiliation(s)
- X H Sheng
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - G Yu
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - N N Zhang
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - L He
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - J Y Yin
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - W J Lin
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Z H Wang
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - D S Cheng
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - X F Wu
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - N S Wang
- Department of Nephrology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
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Yu AC, Wang MA, Chen L, Long C, Guo Y, Sheng XH, Wang XG, Xing K, Xiao LF, Ni HM, Li JT, Qi XL. Effects of dietary pretreated Chinese herbal medicine supplementation on production performance, egg quality, uterine histopathological changes, and antioxidant capacity in late-phase laying hens. Front Physiol 2023; 14:1110301. [PMID: 36744028 PMCID: PMC9895833 DOI: 10.3389/fphys.2023.1110301] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/11/2023] [Indexed: 01/21/2023] Open
Abstract
Aims: The study aimed to evaluate the effects of pretreated Chinese herbal medicine (PCHM) on egg quality, production performance, histopathological changes in the uterus, antiox idant capacity, and antioxidant gene expression in late-phase layers. Methods: Jinghong No.1 layers (n = 360, 68 weeks old) were assigned randomly to one of f our dietary interventions. Each treatment was replicated six times. Repeat 15 chickens per g roup. All birds were fed a diet composed of a corn-soybean meal-based diet supplemented with 0, 0.2, 0.4, or 0.8% PCHM for 6 weeks. Results: Dietary PCHM supplementation had no significant effects on laying rate, feed con sumption, yolk color, and shape index. With increasing PCHM level the Haugh unit linearly increased (P < 0.05). Supplementation of 0.8% PCHM increased egg weight, compared with the control (P < 0.05). PCHM can effectively alleviated the pathological changes caused by aging in the uterus including hemorrhage, and many inflammatory cell infiltrations. Supplementation of 0.4% PCHM increased glutathione peroxidase (GSHPx) in liver, magnum, and plasm considerably, compared with the control (P < 0.05). Supplementation of PCHM decr ease in the liver, magnum, and uterus on malondialdehyde (MDA) content, compared with the control (P < 0.05). Compared with the control group, mRNA expressions of glutathione peroxidase 1 (GPX1), peroxidase 4 (GPX4), catalase (CAT), and nuclear factor E2-related factor 2 (Nrf2) in the magnum, liver, and uterus were dramatically rose in the 0.4% PCHM supplementation group (P < 0.05). In summary, dietary supplementation after PCHM increased egg weight and quality in late-phase laying hens. Conclusion: Dietary PCHM increased the antioxidative capacity of late-phase laying hens, which could be associated with increased mRNA expression of antioxidant enzymes and Nrf2. These findings provide potential for using PCHM to increase the production performance in late-phase laying hens.
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Affiliation(s)
- Ao-Chuan Yu
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Min-An Wang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Li Chen
- Food Science and Engineering College, Beijing University of Agriculture, Beijing, China
| | - Cheng Long
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Yong Guo
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Xi-Hui Sheng
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Xiang-Guo Wang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Kai Xing
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Long-Fei Xiao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - He-Min Ni
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Jian-Tao Li
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China,*Correspondence: Jian-Tao Li, ; Xiao-Long Qi,
| | - Xiao-Long Qi
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China,*Correspondence: Jian-Tao Li, ; Xiao-Long Qi,
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Zhai GJ, Xu Y, Yang XY, Sheng XH, Xiao GD, Cao YJ. [Related factors of internal border-zone infarcts in patients with symptomatic chronic internal carotid artery occlusion]. Zhonghua Yi Xue Za Zhi 2022; 102:2950-2955. [PMID: 36207871 DOI: 10.3760/cma.j.cn112137-20220106-00043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To explore the related factors of internal border-zone (IBZ) infarcts in patients with symptomatic chronic internal carotid artery occlusion (CICAO). Methods: From January 2011 to May 2019, the symptomatic CICAO patients in the Second Affiliated Hospital of Soochow University and the Ninth People's Hospital of Suzhou were retrospectively analyzed. The patients were divided into IBZ group and non-IBZ group. The demographic data, laboratory examination and imaging data of the two groups were collected. Binary logistic regression analysis was used to identify the related factors of IBZ infarcts in patients with symptomatic CICAO. Results: A total of 185 patients (147 males and 38 females) were finally enrolled, with a mean age of (65±11) years old. There were 64 and 121 cases in IBZ group and non-IBZ group, respectively. The ratio of patients with ophthalmic artery (OA) reflux in IBZ group was 64.1% (41/64), which was significantly higher than that in non IBZ group [47.8% (55/121), P=0.037], while the ratio of patients with collateral compensation (ASTIN/SIR 3-4) in non-IBZ group was 66.1% (80/121), which was significantly higher than that in IBZ group [29.7% (19/64), P<0.001]. Multivariate logistic regression analysis showed that history of cerebral infarction (OR=2.233, 95%CI: 1.023-4.874), low density lipoprotein (LDL) (OR=1.516, 95%CI: 1.006-2.285) and OA reflux (OR=5.060, 95%CI: 1.160-22.081) were independent risk factors for IBZ infarcts in patients with symptomatic CICAO (all P<0.05); while prothrombin international normalized ratio (INR) (OR=0.010, 95%CI: 0.000-0.970) and collateral compensation (ASTIN/SIR 3-4) (OR=0.172, 95%CI: 0.079-0.373) were protective factors (all P<0.05). Conclusion: OA reflux, LDL, and history of cerebral infarction are independent risk factors for IBZ infarcts in patients with symptomatic CICAO, while INR and collateral compensation scores (ASTIN/SIR 3-4) are the protective factors.
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Affiliation(s)
- G J Zhai
- Department of Neurology, the Ninth People's Hospital of Suzhou, Suzhou 215200, China
| | - Y Xu
- Department of Neurology, the Ninth People's Hospital of Suzhou, Suzhou 215200, China
| | - X Y Yang
- Department of Neurology, the Ninth People's Hospital of Suzhou, Suzhou 215200, China
| | - X H Sheng
- Department of Neurology, the Ninth People's Hospital of Suzhou, Suzhou 215200, China
| | - G D Xiao
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Y J Cao
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Long C, Zhu GY, Sheng XH, Xing K, Venema K, Wang XG, Xiao LF, Guo Y, Ni HM, Zhu NH, Qi XL. Dietary supplementation with selenomethionine enhances antioxidant capacity and selenoprotein gene expression in layer breeder roosters. Poult Sci 2022; 101:102113. [PMID: 36087443 PMCID: PMC9465117 DOI: 10.1016/j.psj.2022.102113] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/10/2022] [Accepted: 07/25/2022] [Indexed: 11/26/2022] Open
Abstract
This study's objective was to investigate the effects of dietary Se (in the form of selenomethionine) on the antioxidant activity and selenoprotein gene expressions in layer breeder roosters. One hundred and eighty, 36-wk-old Jingfen layer breeder roosters were randomly allocated to one of 5 dietary treatments (0, 0.25, 0.5, 1, or 2 mg/kg Se) for 6 wk on a corn-soybean meal-based diet. Antioxidant parameters and selenoprotein gene expressions were assessed at the end of the experiment. The results showed that Se supplementation significantly increased the activity of T-SOD, CAT, GSH-Px, and superoxide anion scavenging ability in plasma (P ≤ 0.05), and activities of T-SOD, CAT, GSH-Px, superoxide anion scavenging ability, and hydroxyl radical scavenging ability in the liver, kidney, and testis (P < 0.05). Moreover, MDA levels were significantly reduced in plasma, liver, kidney, and testis (P < 0.01), compared to the control group. Furthermore, the dietary administration of Se significantly increased TrxR2 and GPx4 mRNA levels in kidney and testis, and ID1 mRNA levels in liver and kidney. Most of the antioxidant parameters and selenoprotein-related gene expressions significantly increased, and MDA significantly decreased at dietary supplementation with 0.5 mg/kg Se. Whereas a higher dose of Se level (1 or 2 mg/kg) inhibited the activities of some of the antioxidant enzymes and selenoprotein-related gene expressions in selected tissues. In conclusion, dietary Se supplementation with 0.5 mg/kg significantly improved roosters’ antioxidant status and selenoprotein-related gene expression in liver, kidney, and testis, while higher doses led to inhibit these; dietary Se might increase reproductive performance by enhancing their antioxidant status in roosters.
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Qi XL, Xing K, Huang Z, Chen Y, Wang L, Zhang LC, Sheng XH, Wang XG, Ni HM, Guo Y. Comparative transcriptome analysis digs out genes related to antifreeze between fresh and frozen-thawed rooster sperm. Poult Sci 2020; 99:2841-2851. [PMID: 32475417 PMCID: PMC7597663 DOI: 10.1016/j.psj.2020.01.022] [Citation(s) in RCA: 6] [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: 05/22/2019] [Revised: 12/28/2019] [Accepted: 01/01/2020] [Indexed: 12/30/2022] Open
Abstract
The objective of this study was to investigate differences in mRNA expression between fresh and frozen–thawed sperm in roosters. In trial 1, gene expression profiles were measured using microarray with Affymetrix GeneChip Chicken Genome Arrays. The results showed that 2,115 genes were differentially expressed between the 2 groups. Among these genes, 2,086 were significantly downregulated and 29 were significantly upregulated in the frozen–thawed sperm group. Gene Ontology (GO) analysis showed that more than 1,000 differentially expressed genes (DEG) of all significantly regulated genes were involved in GO terms including biological processes, molecular function, and cellular component. Kyoto Encyclopedia of Genes and Genomes analysis showed that DEG were significantly (P < 0.05) enriched on ribosome, oxidative phosphorylation, proteasome, cell cycle, oocyte meiosis, and spliceosome pathways. In trial 2, ejaculated semen was collected from 18 roosters and divided into 5 recombinant HSP90 protein–supplemented groups (0.01, 0.1, 0.5, 1, or 2 μg/mL) and one control group with no recombinant HSP90 protein supplementation to evaluate the effect of recombinant HSP90 protein in the extender on post-thaw quality of rooster semen. The results showed that post-thaw sperm viability and motility was significantly improved (P < 0.05) in the extender containing 0.5 and 1 μg/mL of recombinant HSP90 protein compared with the control. Our preliminary results will provide a valuable basis for understanding the potential molecular mechanisms of cryodamage in frozen–thawed sperm and theoretical guidance to improve the fertility of frozen–thawed chicken sperm.
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Affiliation(s)
- Xiao-Long Qi
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - Kai Xing
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - Zhen Huang
- Ecological Construction Department, Beijing Monitoring Station for Animal Husbandry Environment, Beijing 102200, China
| | - Yu Chen
- Department of Livestock and Poultry Products Testing, Beijing General Station of Animal Husbandry, Beijing 100107, China
| | - Liang Wang
- Department of Livestock and Poultry Products Testing, Beijing General Station of Animal Husbandry, Beijing 100107, China
| | - Li-Chang Zhang
- Beijing Foreign Enterprise Service Group Co., Ltd, Beijing Er Shang Group, Beijing 100053, China
| | - Xi-Hui Sheng
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - Xiang-Guo Wang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - He-Min Ni
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - Yong Guo
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
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Xu LY, Zhao FP, Sheng XH, Ren HX, Zhang L, Wei CH, Du LX. Optimal Design for Marker-assisted Gene Pyramiding in Cross Population. Asian-Australas J Anim Sci 2012; 25:772-84. [PMID: 25049625 PMCID: PMC4093085 DOI: 10.5713/ajas.2011.11239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 07/23/2011] [Revised: 11/07/2011] [Accepted: 10/13/2011] [Indexed: 11/27/2022]
Abstract
Marker-assisted gene pyramiding aims to produce individuals with superior economic traits according to the optimal breeding scheme which involves selecting a series of favorite target alleles after cross of base populations and pyramiding them into a single genotype. Inspired by the science of evolutionary computation, we used the metaphor of hill-climbing to model the dynamic behavior of gene pyramiding. In consideration of the traditional cross program of animals along with the features of animal segregating populations, four types of cross programs and two types of selection strategies for gene pyramiding are performed from a practical perspective. Two population cross for pyramiding two genes (denoted II), three population cascading cross for pyramiding three genes(denoted III), four population symmetry (denoted IIII-S) and cascading cross for pyramiding four genes (denoted IIII-C), and various schemes (denoted cross program-A–E) are designed for each cross program given different levels of initial favorite allele frequencies, base population sizes and trait heritabilities. The process of gene pyramiding breeding for various schemes are simulated and compared based on the population hamming distance, average superior genotype frequencies and average phenotypic values. By simulation, the results show that the larger base population size and the higher the initial favorite allele frequency the higher the efficiency of gene pyramiding. Parents cross order is shown to be the most important factor in a cascading cross, but has no significant influence on the symmetric cross. The results also show that genotypic selection strategy is superior to phenotypic selection in accelerating gene pyramiding. Moreover, the method and corresponding software was used to compare different cross schemes and selection strategies.
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Affiliation(s)
- L Y Xu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - F P Zhao
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China ; Department of Biostatistics and Bioinformatics, Tulane University, New Orleans, Louisiana 70112, USA
| | - X H Sheng
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - H X Ren
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - L Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - C H Wei
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - L X Du
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
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Abstract
MicroRNAs, a class of noncoding RNA of approximately 22 nucleotides, can regulate gene expression by binding to the region of 3' UTR of the target mRNAs. To date, it has been demonstrated for organism that miRNAs play an important role in growth, development,and occurrence of disease. This paper introduces the character and the active mechanism of miRNAs, and the newest progress in the research on the function of microRNA, the identification of microRNA gene and the prediction of target gene also are summarized here.
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Affiliation(s)
- Xi-Hui Sheng
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100094, China.
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