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Zhang Z, Kang Z, Deng K, Li J, Liu Z, Huang X, Wang F, Fan Y. circUSP13 facilitates the fast-to-slow myofiber shift via the MAPK/ERK signaling pathway in goat skeletal muscles. J Cell Physiol 2024. [PMID: 38591363 DOI: 10.1002/jcp.31226] [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: 11/22/2023] [Revised: 01/29/2024] [Accepted: 02/06/2024] [Indexed: 04/10/2024]
Abstract
Understanding how skeletal muscle fiber proportions are regulated is essential for understanding muscle function and improving the quality of mutton. While circular RNA (circRNA) has a critical function in myofiber type transformation, the specific mechanisms are not yet fully understood. Prior evidence indicates that circular ubiquitin-specific peptidase 13 (circUSP13) can promote myoblast differentiation by acting as a ceRNA, but its potential role in myofiber switching is still unknown. Herein, we found that circUSP13 enhanced slow myosin heavy chain (MyHC-slow) and suppressed MyHC-fast expression in goat primary myoblasts (GPMs). Meanwhile, circUSP13 evidently enhanced the remodeling of the mitochondrial network while inhibiting the autophagy of GPMs. We obtained fast-dominated myofibers, via treatment with rotenone, and further demonstrated the positive role of circUSP13 in the fast-to-slow transition. Mechanistically, activation of the mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) pathway significantly impaired the slow-to-fast shift in fully differentiated myotubes, which was restored by circUSP13 or IGF1 overexpression. In conclusion, circUSP13 promoted the fast-to-slow myofiber type transition through MAPK/ERK signaling in goat skeletal muscle. These findings provide novel insights into the role of circUSP13 in myofiber type transition and contribute to a better understanding of the genetic mechanisms underlying meat quality.
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Affiliation(s)
- Zhen Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Ziqi Kang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Kaiping Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Juan Li
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Zhipeng Liu
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Xinai Huang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
- College of Animal Science, Shanxi Agricultural University, Taiyuan, China
| | - Feng Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Yixuan Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
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Deng K, Liu Z, Li X, Ren C, Fan Y, Guo J, Li P, Deng M, Xue G, Yu X, Shi J, Zhang Y, Wang F. Ythdf2-mediated STK11 mRNA decay supports myogenesis by inhibiting the AMPK/mTOR pathway. Int J Biol Macromol 2024; 254:127614. [PMID: 37884231 DOI: 10.1016/j.ijbiomac.2023.127614] [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: 05/13/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 10/28/2023]
Abstract
An emerging research focus is the role of m6A modifications in mediating the post-transcriptional regulation of mRNA during mammalian development. Recent evidence suggests that m6A methyltransferases and demethylases play critical roles in skeletal muscle development. Ythdf2 is a m6A "reader" protein that mediates mRNA degradation in an m6A-dependent manner. However, the specific function of Ythdf2 in skeletal muscle development and the underlying mechanisms remain unclear. Here, we observed that Ythdf2 expression was significantly upregulated during myogenic differentiation, whereas Ythdf2 knockdown markedly inhibited myoblast proliferation and differentiation. Combined analysis of high-throughput sequencing, Co-IP, and RIP assay revealed that Ythdf2 could bind to m6A sites in STK11 mRNA and form an Ago2 silencing complex to promote its degradation, thereby regulating its expression and consequently, the AMPK/mTOR pathway. Furthermore, STK11 downregulation partially rescued Ythdf2 knockdown-induced impairment of proliferation and myogenic differentiation by inhibiting the AMPK/mTOR pathway. Collectively, our results indicate that Ythdf2 mediates the decay of STK11 mRNA, an AMPK activator, in an Ago2 system-dependent manner, thereby driving skeletal myogenesis by suppressing the AMPK/mTOR pathway. These findings further enhance our understanding of the molecular mechanisms underlying RNA methylation in the regulation of myogenesis and provide valuable insights for conducting in-depth studies on myogenesis.
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Affiliation(s)
- Kaiping Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhipeng Liu
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaodan Li
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Caifang Ren
- Department of Pathology, School of Medicine, Jiangsu University, Zhenjiang 212000, China
| | - Yixuan Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Jinjing Guo
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Peizhen Li
- Jiangsu Provincial Animal Husbandry General Station, Nanjing 210095, China
| | - Mingtian Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Gang Xue
- Haimen Goat Breeding Farm, Nantong 226100, China
| | - Xiaorong Yu
- Haimen Goat Breeding Farm, Nantong 226100, China
| | - Jianfei Shi
- Haimen Goat Breeding Farm, Nantong 226100, China
| | - Yanli Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Feng Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China.
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Deng K, Liu Z, Su Y, Fan Y, Zhang Y, Wang F. Comparison of muscle fiber characteristics and meat quality between newborn and adult Haimen goats. Meat Sci 2024; 207:109361. [PMID: 37857027 DOI: 10.1016/j.meatsci.2023.109361] [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: 07/06/2023] [Revised: 10/03/2023] [Accepted: 10/07/2023] [Indexed: 10/21/2023]
Abstract
Goat meat is popular with consumers for its rich nutritional content. Muscle fiber characteristics have been shown to play a crucial role in determining the quantity and quality of meat. However, little is known about the temporal changes in muscle fiber characteristics and meat quality during growth in goats. In this study, muscle fiber type, fiber diameter, fiber cross-sectional area (CSA), glycolytic potential (GP), meat pH, and meat color were analyzed in the gastrocnemius (GAS), gluteus medius (GM), biceps brachii (BB), longissimus lumborum (LL) muscles from newborn (NHMG) and adult (AHMG) Haimen goats. The distribution of type I and type Π fiber in goats is not consistent across the four muscles and undergoes alterations with age. The diameter and CSA of the muscle fibers were similar among the four NHMG muscles. However, in AHMG, the LL muscle had the largest fiber in terms of both diameter and CSA, followed by BB, GM, and GAS muscles. Moreover, the CSA of type Π fibers was higher than that of type I fibers in both NHMG and AHMG. GP values ranged from 90 to 140 umol/g across the muscle and no significant differences were observed. AHMG had a higher pH level and a* value, but lower L* and b* values than NHMG. Overall, our findings enhance our understanding of the changes in muscle fiber type and meat quality during the growth in Haimen goats and provide a basis for future research on the development and transformation of muscle fibers in goats.
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Affiliation(s)
- Kaiping Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhipeng Liu
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Yalong Su
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Yixuan Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanli Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Feng Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China; Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China.
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4
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Li X, Li K, Deng K, Liu Z, Huang X, Guo J, Yang F, Wang F. LncRNA12097.1 contributes to endometrial cell growth by enhancing YES1 activating β-catenin via sponging miR-145-5p. Int J Biol Macromol 2024; 256:128477. [PMID: 38035963 DOI: 10.1016/j.ijbiomac.2023.128477] [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: 08/24/2023] [Revised: 11/18/2023] [Accepted: 11/26/2023] [Indexed: 12/02/2023]
Abstract
Despite previous investigations elucidating the regulatory mechanisms of long non-coding RNAs (lncRNAs) in endometrial function and reproductive disorders, the precise pathways through which lncRNAs impact endometrial functions and fertility remain unclear. In this study, we performed an expression profile analysis of lncRNAs in the endometrial tissue of Hu sheep with different prolificacy, identifying 13,707 lncRNAs. We discovered a bidirectional lncRNA, designated lncRNA12097.1, exhibiting significant up-regulation exclusively in the endometrium of Hu sheep with high fecundity. Functional analyses revealed lncRNA12097.1 significantly enhanced proliferation and cell cycle progression in both endometrial epithelial cell (EEC) and stromal cells (ESC), while inhibiting apoptosis in these cell types. Mechanistically, we demonstrated a directly interaction between lncRNA12097.1 and miR-145-5p, with YES proto-oncogene 1 (YES1) being identified as a validated target of miR-145-5p. Interference with lncRNA12097.1 resulted in suppressed cell growth through down-regulation of YES1 expression, which could be rescued by miR-145-5p. Furthermore, lncRNA12097.1 functions as a competitive endogenous RNA (ceRNA) for miR-145-5p in ESCs, sequestering miR-145-5p and preventing its binding to the 3'UTR of YES1 mRNA. This interaction led to increased expression of YES1 and subsequent activation of downstream β-catenin signaling, thereby promoting ESC growth in Hu sheep. These findings provide novel molecular insights into the mechanisms underlying prolificacy in sheep.
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Affiliation(s)
- Xiaodan Li
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Kang Li
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Kaiping Deng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhipeng Liu
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xinai Huang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; College of Animal Science and Technology, Shanxi Agricultural University, Taigu 030801, China
| | - Jiahe Guo
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Fan Yang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Feng Wang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Li X, Yao X, Li K, Guo J, Deng K, Liu Z, Yang F, Fan Y, Yang Y, Zhu H, Wang F. CREB1 Is Involved in miR-134-5p-Mediated Endometrial Stromal Cell Proliferation, Apoptosis, and Autophagy. Cells 2023; 12:2554. [PMID: 37947633 PMCID: PMC10649013 DOI: 10.3390/cells12212554] [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: 07/31/2023] [Revised: 09/17/2023] [Accepted: 10/13/2023] [Indexed: 11/12/2023] Open
Abstract
The successful establishment of endometrial receptivity is a key factor in ensuring the fertility of ewes and their economic benefits. Hu sheep have attracted attention due to their high fecundity and year-round estrus. In this study, we found that in the luteal phase, the uterine gland density, uterine coefficient, and number of uterine caruncles of high-fertility Hu sheep were higher than those of low-fertility Hu sheep. Thousands of differentially expressed genes were identified in the endometrium of Hu sheep with different fertility potential using RNA sequencing (RNA-Seq). Several genes involved in endometrial receptivity were screened using bioinformatics analysis. The qRT-PCR analysis further revealed the differential expression of cAMP reactive element binding protein-1 (CREB1) in the Hu sheep endometrium during the estrous cycle. Functionally, our results suggested that CREB1 significantly affected the expression level of endometrial receptivity marker genes, promoted cell proliferation by facilitating the transition from the G1 phase to the S phase, and inhibited cell apoptosis and autophagy. Moreover, we observed a negative linear correlation between miR-134-5p and CREB1 in the endometrium. In addition, CREB1 overexpression prevented the negative effect of miR-134-5p on endometrial stromal cell (ESC) growth. Taken together, these data indicated that CREB1 was regulated by miR-134-5p and may promote the establishment of uterine receptivity by regulating the function of ESCs. Moreover, this study provides new theoretical references for identifying candidate genes associated with fertility.
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Affiliation(s)
- Xiaodan Li
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; (X.L.)
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaolei Yao
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; (X.L.)
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
| | - Kang Li
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; (X.L.)
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiahe Guo
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; (X.L.)
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
| | - Kaiping Deng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhipeng Liu
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
| | - Fan Yang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing 210095, China; (X.L.)
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
| | - Yixuan Fan
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
| | - Yingnan Yang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
| | - Huabin Zhu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, China
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Deng K, Wang SS, Kiener S, Smith E, Chen KS, Pamboukian R, Laasri A, Pelaez C, Ulaszek J, Kmet M, De Jesus A, Hammack T, Reddy R, Wang H. Multi-laboratory validation study of a real-time PCR method for detection of Salmonella in baby spinach. Food Microbiol 2023; 114:104299. [PMID: 37290875 DOI: 10.1016/j.fm.2023.104299] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/02/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 06/10/2023]
Abstract
The FDA Bacteriological Analytical Manual (BAM) Salmonella culture method takes at least 3 days for a presumptive positive result. The FDA developed a quantitative PCR (qPCR) method to detect Salmonella from 24-h preenriched cultures, using ABI 7500 PCR system. The qPCR method has been evaluated as a rapid screening method for a broad range of foods by single laboratory validation (SLV) studies. The present multi-laboratory validation (MLV) study was aimed to measure the reproducibility of this qPCR method and compare its performance with the culture method. Sixteen laboratories participated in two rounds of MLV study to analyze twenty-four blind-coded baby spinach test portions each. The first round yielded ∼84% and ∼82% positive rates across laboratories for the qPCR and culture methods, respectively, which were both outside the fractional range (25%-75%) required for fractionally inoculated test portions by the FDA's Microbiological Method Validation Guidelines. The second round yielded ∼68% and ∼67% positive rates. The relative level of detection (RLOD) for the second-round study was 0.969, suggesting that qPCR and culture methods had similar sensitivity (p > 0.05). The study demonstrated that the qPCR yields reproducible results and is sufficiently sensitive and specific for the detection of Salmonella in food.
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Affiliation(s)
- Kaiping Deng
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 6502 S. Archer Rd, Bedford Park, IL, 60501, USA
| | - Shizhen Steven Wang
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 5001 Campus Dr, College Park, MD 20740, USA
| | - Shannon Kiener
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 6502 S. Archer Rd, Bedford Park, IL, 60501, USA
| | - Emily Smith
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 6502 S. Archer Rd, Bedford Park, IL, 60501, USA
| | - Kai-Shun Chen
- FDA-Office of Regulatory Affairs (ORA), 109 Holton Street, Winchester, MA, 01890, USA
| | - Ruiqing Pamboukian
- FDA-Office of Regulatory Affairs (ORA), 12420 Parklawn Dr, Rockville, MD, 20857, USA
| | - Anna Laasri
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 5001 Campus Dr, College Park, MD 20740, USA
| | - Catalina Pelaez
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 6502 S. Archer Rd, Bedford Park, IL, 60501, USA
| | - Jodie Ulaszek
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 6502 S. Archer Rd, Bedford Park, IL, 60501, USA
| | - Matthew Kmet
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 6502 S. Archer Rd, Bedford Park, IL, 60501, USA
| | - Antonio De Jesus
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 5001 Campus Dr, College Park, MD 20740, USA
| | - Thomas Hammack
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 5001 Campus Dr, College Park, MD 20740, USA
| | - Ravinder Reddy
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 6502 S. Archer Rd, Bedford Park, IL, 60501, USA
| | - Hua Wang
- FDA-Center for Food Safety and Applied Nutrition (CFSAN), 5001 Campus Dr, College Park, MD 20740, USA.
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Deng K, Liu Z, Su Y, Zhang Z, Fan Y, Zhang Y, Wang F. RUNX1T1 modulates myogenic differentiation by regulating the calcium signaling pathway and the alternative splicing of ROCK2. FASEB J 2023; 37:e23044. [PMID: 37342905 DOI: 10.1096/fj.202300677r] [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: 04/07/2023] [Revised: 05/27/2023] [Accepted: 06/07/2023] [Indexed: 06/23/2023]
Abstract
RUNX1T1 (Runt-related transcription factor 1, translocated to 1) plays a wide-ranging and diverse role in cellular development, including hematopoiesis and adipogenesis. However, little is known about the function of RUNX1T1 in the skeletal muscle development. Here, we assessed the impact of RUNX1T1 on the proliferation and myogenic differentiation of goat primary myoblasts (GPMs). It was observed that RUNX1T1 is highly expressed during the early stages of myogenic differentiation and the fetal stage. Moreover, the knockdown of RUNX1T1 promotes the proliferation and inhibits myogenic differentiation and mitochondrial biogenesis of GPMs. RNA sequencing analysis revealed that significantly differentially expressed genes in RUNX1T1 knockdown cells were enriched in the calcium signaling pathway. Additionally, we discovered that RUNX1T1 regulates alternative splicing (AS) events involved in myogenesis. We also show that silencing RUNX1T1 blocked the Ca2+ -CAMK signaling pathway and reduced the expression levels of muscle-specific isoforms of recombinant rho associated coiled coil containing crotein kinase 2 (ROCK2) during myogenic differentiation, partially explaining why RUNX1T1 deficiency leads to the impairment of myotube formation. These findings suggest that RUNX1T1 is a novel regulator of myogenic differentiation that regulates the calcium signaling pathway and AS of ROCK2. Overall, our results highlight the critical role of RUNX1T1 in myogenesis and broaden our understanding of myogenic differentiation.
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Affiliation(s)
- Kaiping Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
- Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - Zhipeng Liu
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
- Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - Yalong Su
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
- Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - Zhen Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
- Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - Yixuan Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
- Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - Yanli Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
- Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - Feng Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
- Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing, China
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8
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Deng K, Nemser SM, Frost K, Goodman LB, Ip HS, Killian ML, Ulaszek J, Kiener S, Kmet M, Uhlig S, Hettwer K, Colson B, Nichani K, Schlierf A, Tkachenko A, Miller MR, Reddy R, Tyson GH. Successful Detection of Delta and Omicron Variants of SARS-CoV-2 by Veterinary Diagnostic Laboratory Participants in an Interlaboratory Comparison Exercise. J Appl Lab Med 2023:7177555. [PMID: 37222567 DOI: 10.1093/jalm/jfad018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/17/2023] [Indexed: 05/25/2023]
Abstract
BACKGROUND Throughout the COVID-19 pandemic, veterinary diagnostic laboratories have tested diagnostic samples for SARS-CoV-2 both in animals and over 6 million human samples. An evaluation of the performance of those laboratories is needed using blinded test samples to ensure that laboratories report reliable data to the public. This interlaboratory comparison exercise (ILC3) builds on 2 prior exercises to assess whether veterinary diagnostic laboratories can detect Delta and Omicron variants spiked in canine nasal matrix or viral transport medium. METHODS The ILC organizer was an independent laboratory that prepared inactivated Delta variant at levels of 25 to 1000 copies per 50 µL of nasal matrix for blinded analysis. Omicron variant at 1000 copies per 50 µL of transport medium was also included. Feline infectious peritonitis virus (FIPV) RNA was used as a confounder for specificity assessment. Fourteen test samples were prepared for each participant. Participants used their routine diagnostic procedures for RNA extraction and real-time reverse transcriptase-PCR. Results were analyzed according to International Organization for Standardization (ISO) 16140-2:2016. RESULTS Overall, laboratories demonstrated 93% detection for Delta and 97% for Omicron at 1000 copies per 50 µL. Specificity was 97% for blank samples and 100% for blank samples with FIPV. No differences in Cycle Threshold (Ct) values were significant for samples with the same virus levels between N1 and N2 markers, nor between the 2 variants. CONCLUSIONS The results indicated that all ILC3 participants were able to detect both Delta and Omicron variants. The canine nasal matrix did not significantly affect SARS-CoV-2 detection.
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Affiliation(s)
- Kaiping Deng
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Bedford Park, IL, United States
| | - Sarah M Nemser
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, United States
| | | | - Laura B Goodman
- College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Hon S Ip
- National Wildlife Health Center, U.S. Geological Survey, Madison, WI, United States
| | - Mary Lea Killian
- National Veterinary Services Laboratories, Animal and Plant Health Inspection Service, U.S. Department of Agriculture, Ames, IA, United States
| | - Jodie Ulaszek
- Institute for Food Safety and Health, Illinois Institute of Technology, Bedford Park, IL, United States
| | - Shannon Kiener
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Bedford Park, IL, United States
| | - Matthew Kmet
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Bedford Park, IL, United States
| | | | | | | | | | | | - Andriy Tkachenko
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, United States
| | - Megan R Miller
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, United States
| | - Ravinder Reddy
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Bedford Park, IL, United States
| | - Gregory H Tyson
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, United States
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Li X, Yao X, Bao Y, Deng K, Deng M, Yang F, Sun X, You P, Cai Q, Wang F. PPP2R2A promotes testosterone secretion in Hu sheep Leydig cells via activation of the AKT/mTOR signaling pathway. J Mol Endocrinol 2023; 70:e220130. [PMID: 36883561 DOI: 10.1530/jme-22-0130] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 02/24/2023] [Indexed: 03/09/2023]
Abstract
The serine-threonine protein phosphatase 2A (PP2A) is a heterotrimeric enzyme complex that plays a vital role in regulating male reproductive activities. However, as an essential member of the PP2A family, the physiological functions of PP2A regulatory subunit B55α (PPP2R2A) in testis remain inconclusive. Hu sheep are noted for their reproductive precocity and fertility, and are ideal models for the study of male reproductive physiology. Here, we analyzed the expression patterns of PPP2R2A in the male Hu sheep reproductive tract at different developmental stages and further investigated its role in testosterone secretion and its underlying mechanisms. In this study, we found that there were temporal and spatial differences in PPP2R2A protein expression in the testis and epididymis, especially the expression abundance in the testis at 8 months old (8M) was higher than that at 3 months old (3M). Interestingly, we observed that PPP2R2A interference reduced the testosterone levels in the cell culture medium, which is accompanied by a reduction in Leydig cell proliferation and an elevation in Leydig cell apoptosis. The level of reactive oxygen species in cells increased significantly, while the mitochondrial membrane potential (ΔΨm) decreased significantly after PPP2R2A deletion. Meanwhile, the mitochondrial mitotic protein DNM1L was significantly upregulated, while the mitochondrial fusion proteins MFN1/2 and OPA1 were significantly downregulated after PPP2R2A interference. Furthermore, PPP2R2A interference suppressed the AKT/mTOR signaling pathway. Taken together, our data indicated that PPP2R2A enhanced testosterone secretion, promoted cell proliferation, and inhibited cell apoptosis in vitro, all of which were associated with the AKT/mTOR signaling pathway.
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Affiliation(s)
- Xiaodan Li
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
| | - Xiaolei Yao
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
| | - Yongjin Bao
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
| | - Kaiping Deng
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
| | - Mingtian Deng
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
| | - Fan Yang
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
| | - Xuan Sun
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
| | - Peihua You
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
| | - Qingxian Cai
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
| | - Feng Wang
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang, Nanjing, 210095, China
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Wang H, Chang J, Zhang W, Fang Y, Li S, Fan Y, Jiang S, Yao Y, Deng K, Lu L, Bao X, Feng F, Wang R, Feng M. Radiomics model and clinical scale for the preoperative diagnosis of silent corticotroph adenomas. J Endocrinol Invest 2023:10.1007/s40618-023-02042-2. [PMID: 37020103 DOI: 10.1007/s40618-023-02042-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 02/12/2023] [Indexed: 04/07/2023]
Abstract
OBJECTIVE Silent corticotroph adenomas (SCAs) are a subtype of nonfunctioning pituitary adenomas that exhibit more aggressive behavior. However, rapid and accurate preoperative diagnostic methods are currently lacking. DESIGN The purpose of this study was to examine the differences between SCA and non-SCA features and to establish radiomics models and a clinical scale for rapid and accurate prediction. METHODS A total of 260 patients (72 SCAs vs. 188 NSCAs) with nonfunctioning adenomas from Peking Union Medical College Hospital were enrolled in the study as the internal dataset. Thirty-five patients (6 SCAs vs. 29 NSCAs) from Fuzhou General Hospital were enrolled as the external dataset. Radiomics models and an SCA scale to preoperatively diagnose SCAs were established based on MR images and clinical features. RESULTS There were more female patients (internal dataset: p < 0.001; external dataset: p = 0.028) and more multiple microcystic changes (internal dataset: p < 0.001; external dataset: p = 0.012) in the SCA group. MRI showed more invasiveness (higher Knosp grades, p ≤ 0.001). The radiomics model achieved AUCs of 0.931 and 0.937 in the internal and external datasets, respectively. The clinical scale achieved an AUC of 0.877 and a sensitivity of 0.952 in the internal dataset and an AUC of 0.899 and a sensitivity of 1.0 in the external dataset. CONCLUSIONS Based on clinical information and imaging characteristics, the constructed radiomics model achieved high preoperative diagnostic ability. The SCA scale achieved the purpose of rapidity and practicality while ensuring sensitivity, which is conducive to simplifying clinical work.
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Affiliation(s)
- H Wang
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Neurospine center, China International Neuroscience Institute, Beijing, China
| | - J Chang
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
| | - W Zhang
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
- Department of Thoracic Surgery, Peking University First Hospital, Beijing, China
| | - Y Fang
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
| | - S Li
- Department of Plastic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing, China
| | - Y Fan
- Department of Neurosurgery, Beijing Tiantan Hospital, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - S Jiang
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
| | - Y Yao
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
| | - K Deng
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
| | - L Lu
- Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing, China
| | - X Bao
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China
| | - F Feng
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing, China
| | - R Wang
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China.
| | - M Feng
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Dongcheng District, Beijing, 100730, China.
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Deng K, Liu Z, Li X, Zhang Z, Fan Y, Huang Q, Zhang Y, Wang F. Targeted Demethylation of the TGFβ1 mRNA Promotes Myoblast Proliferation via Activating the SMAD2 Signaling Pathway. Cells 2023; 12:cells12071005. [PMID: 37048078 PMCID: PMC10093215 DOI: 10.3390/cells12071005] [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] [Received: 02/06/2023] [Revised: 03/07/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
Recent evidence suggested that N6-methyladenosine (m6A) methylation can determine m6A-modified mRNA fate and play an important role in skeletal muscle development. It was well known that transforming growth factor beta 1 (TGFβ1) is involved in a variety of cellular processes, such as proliferation, differentiation, and apoptosis. However, little is known about the m6A-mediated TGFβ1 regulation in myogenesis. Here, we observed an increase in endogenous TGFβ1 expression and activity during myotube differentiation. However, the knockdown of TGFβ1 inhibits the proliferation and induces cell apoptosis of myoblast. Moreover, we found that m6A in 5′-untranslated regions (5′UTR) of TGFβ1 promote its decay and inhibit its expression, leading to the blockage of the TGFβ1/SMAD2 signaling pathway. Furthermore, the targeted specific demethylation of TGFβ1 m6A using dCas13b-FTO significantly increased the TGFβ1-mediated activity of the SMAD2 signaling pathway, promoting myoblast proliferation. These findings suggest that TGFβ1 is an essential regulator of myoblast growth that is negatively regulated by m6A. Overall, these results highlight the critical role of m6A-mediated post-transcriptional regulation in myogenesis.
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Fan Y, Zhang Z, Deng K, Kang Z, Guo J, Zhang G, Zhang Y, Wang F. CircUBE3A promotes myoblasts proliferation and differentiation by sponging miR-28-5p to enhance expression. Int J Biol Macromol 2023; 226:730-745. [PMID: 36526061 DOI: 10.1016/j.ijbiomac.2022.12.064] [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: 06/20/2022] [Revised: 11/18/2022] [Accepted: 12/02/2022] [Indexed: 12/15/2022]
Abstract
circRNAs have been found to be involved in the regulatory network of skeletal muscle development in studies. However, their precise functions and regulatory mechanisms remain unknown. The expression patterns and alterations of circRNAs in the longissimus dorsi muscle of two major developmental stages of goats (D75 fetus and D1 kid) were studied using high-throughput sequencing technology and bioinformatics tools in this study. In kid skeletal muscles, 831 differently expressed circRNAs were found, comprising 486 up-regulated circRNAs and 345 down-regulated circRNAs. In skeletal muscle, we focused on the highly expressed and variably expressed circUBE3A. CircUBE3A levels were discovered to be much higher in kid skeletal muscle and differentiated myoblasts. Knocking down circUBE3A resulted in a significant increase in cell proliferation and differentiation in goat myoblasts. CircUBE3A specifically binds to and inhibits miR-28-5p, boosting the expression of Hydroxyacyl Coenzyme A Dehydrogenase Beta (HADHB) and contributing to goat myoblast proliferation and differentiation, according to the mechanistic investigation. The above results indicated that circUBE3A could regulate HADHB expression by targeting miR-28-5p, consequently increasing goat myoblast proliferation and differentiation. Our findings offer fresh perspectives on goat breeding and growth regulation, as well as substantial theoretical basis.
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Affiliation(s)
- Yixuan Fan
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhen Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Kaiping Deng
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Ziqi Kang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Jinjing Guo
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Guomin Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanli Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Luo X, Jiang H, Liu XJ, Zhang Z, Deng K, Lin F, Jiang J, Wang YL, Yu J. Base MRI Imaging Characteristics of Meningioma Patients to Discuss the WHO Classification of Brain Invasion Otherwise Benign Meningiomas. Technol Cancer Res Treat 2023; 22:15330338231171470. [PMID: 37264676 DOI: 10.1177/15330338231171470] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
PURPOSE Compared and analyzed the MRI imaging features of brain invasion otherwise benign (BIOB) meningiomas and WHO grade 1, grade 2 meningiomas, discussed the WHO grading of BIOB from the perspective of imaging. MATERIALS AND METHODS A retrospective analysis was performed on 675 meningiomas patients who carried on MRI examination from January 2006 to February 2022. Setting the 2022 Central nervous system (CNS) WHO Guidelines as the gold standard for pathological diagnosis. Statistical analysis of age, gender, and MRI features of meningiomas in relation to WHO grade and brain invasion. RESULTS Among 675 cases meningiomas, 543 (80.4%) were WHO grade 1, 123 (18.2%) were WHO grade 2, and 9 (1.3%) were WHO grade 3. There were 108 cases meningiomas with brain invasion (BI) (16.0%) and 567 cases without BI (84.0%). Among BI cases, 67 cases were BIOB. Compared the MRI features between BIOB and WHO grade 1 meningiomas, multivariate analysis demonstrated that the most strongly factors associated with distinguish them were enhancement degree, peritumoral edema, tumor-brain interface, fingerlike protrusion, mushroom sign, and bone invasion (AUC: 0.925 (0.901∼0.945), sensitivity: 0.925, specificity: 0.801). Compared the MRI features between BIOB and WHO grade 2 meningiomas, multivariate analysis demonstrated that the most strongly factors associated with distinguish them were enhancement degree and the tumor-brain interface (AUC: 0.779 (0.686∼0.841), sensitivity: 0.746, specificity: 0.732), their efficacy was slightly weaker. CONCLUSIONS BIOB is more similar to WHO grade 2 meningiomas in clinical and imaging features than WHO grade 1, so we think that it may be reasonable to classify BIOB as WHO Grade 2 meningiomas in the guidelines.
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Affiliation(s)
- Xiao Luo
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - Hong Jiang
- Faculty of Medicine, Macau university of science and technology, Macau University of Science and Technology, Taipa, Macau, China
| | - X J Liu
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - Z Zhang
- Faculty of Medicine, Macau university of science and technology, Macau University of Science and Technology, Taipa, Macau, China
| | - K Deng
- Philips Healthcare, China International Center, Guangzhou, China
| | - F Lin
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - J Jiang
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - Y L Wang
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - J Yu
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
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Ke X, Duan L, Gong F, Zhang Y, Deng K, Yao Y, Wang L, Feng F, Xing B, Pan H, Zhu H. A study on serum pro-neurotensin (PNT), furin, and zinc alpha-2-glycoprotein (ZAG) levels in patients with acromegaly. J Endocrinol Invest 2022; 45:1945-1954. [PMID: 35670958 DOI: 10.1007/s40618-022-01827-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 05/18/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Acromegaly caused by growth hormone cell adenoma is commonly associated with abnormal glucolipid metabolism, which may result from changes in adipocytokine secretion. This study aims to investigate serum adipokine levels, including pro-neurotensin (PNT), furin, and zinc alpha-2-glycoprotein (ZAG), in acromegalic patients and the correlation between the levels of these three adipokines and GH levels and glucolipid metabolism indices. METHODS Sixty-eight acromegalic patients and 121 controls were included, and their clinical data were recorded from electronic medical record system. Serum PNT, furin and ZAG levels were measured by ELISA. RESULTS Serum PNT levels in acromegalic patients were significantly higher than controls (66.60 ± 12.36 vs. 46.68 ± 20.54 pg/ml, P < 0.001), and acromegaly was an independent influencing factor of PNT levels (P < 0.001). Moreover, subjects with the highest tertile of PNT levels had a close correlation with acromegaly (OR = 22.200, 95% CI 7.156 ~ 68.875, P < 0.001), even in Model 1 adjusted for gender and age and Model 2 adjusted for gender, age and BMI. Additionally, serum PNT levels were positively correlated with BMI (r = 0.220, P = 0.002) and triglycerides (TGs, r = 0.295, P < 0.001), and TGs were an independent influencing factor of serum PNT levels in acromegalic subjects (P < 0.001). Furthermore, serum PNT levels in obese acromegalic patients were significantly higher than those with normal BMI (P < 0.05). However, serum furin levels were lower in acromegalic patients than controls (0.184 ± 0.036 vs. 0.204 ± 0.061 ng/ml, P < 0.001). CONCLUSION This study is the first to demonstrate that acromegalic patients have increased serum PNT levels. Moreover, serum PNT plays a potential role in abnormal lipid metabolism of acromegalic patients.
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Affiliation(s)
- X Ke
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - L Duan
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - F Gong
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Y Zhang
- Central Research Laboratory, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - K Deng
- Department of Neurosurgery, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Y Yao
- Department of Neurosurgery, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - L Wang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - F Feng
- Department of Radiology, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - B Xing
- Department of Neurosurgery, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - H Pan
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China
| | - H Zhu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, 100730, China.
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Fan Y, Ren C, Deng K, Zhang Z, Li J, Deng M, Zhang Y, Wang F. The regulation of LncRNA GTL2 expression by DNA methylation during sheep skeletal muscle development. Genomics 2022; 114:110453. [PMID: 36030023 DOI: 10.1016/j.ygeno.2022.110453] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 11/27/2022]
Abstract
DNA methylation has crucial roles in regulating the expression of genes involved in skeletal muscle development. However, the DNA methylation pattern of lncRNA during sheep skeletal muscle development remains unclear. This study investigated previous WGBS and LncRNA data in skeletal muscle of sheep (fetus and adult). We then focused on LncRNA GTL2, which is differentially expressed in skeletal muscle and has multiple DMRs. We found that the expression level of GTL2 decreased with age. GTL2 DMRs methylation levels were significantly higher in adult muscle than in fetal muscle. After 5AZA treatment, GTL2 expression was significantly increased in a dose-dependent manner.The dCas9-DNMT3A-sgRNA significantly reduced the expression level of GTL2 in cells, but increased GTL2 DMR methylation levels. The above studies indicate that dCas9-DNMT3A can effectively increase the methylation level in the DMR region of GTL2, the expression level of GTL2 is regulated by DNA methylation during muscle development.
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Affiliation(s)
- Yixuan Fan
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Caifang Ren
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Kaiping Deng
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Zhen Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Juan Li
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Mingtian Deng
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Yanli Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China.
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Deng K, Uhlig S, Goodman LB, Ip HS, Killian ML, Nemser SM, Ulaszek J, Kiener S, Kmet M, Frost K, Hettwer K, Colson B, Nichani K, Schlierf A, Tkachenko A, Mlalazi-Oyinloye M, Scott A, Reddy R, Tyson GH. Second round of an interlaboratory comparison of SARS-CoV2 molecular detection assays used by 45 veterinary diagnostic laboratories in the United States. J Vet Diagn Invest 2022; 34:825-834. [PMID: 35983593 PMCID: PMC9446291 DOI: 10.1177/10406387221115702] [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] [Indexed: 11/16/2022] Open
Abstract
The COVID-19 pandemic presents a continued public health challenge. Veterinary diagnostic laboratories in the United States use RT-rtPCR for animal testing, and many laboratories are certified for testing human samples; hence, ensuring that laboratories have sensitive and specific SARS-CoV2 testing methods is a critical component of the pandemic response. In 2020, the FDA Veterinary Laboratory Investigation and Response Network (Vet-LIRN) led an interlaboratory comparison (ILC1) to help laboratories evaluate their existing RT-rtPCR methods for detecting SARS-CoV2. All participating laboratories were able to detect the viral RNA spiked in buffer and PrimeStore molecular transport medium (MTM). With ILC2, Vet-LIRN extended ILC1 by evaluating analytical sensitivity and specificity of the methods used by participating laboratories to detect 3 SARS-CoV2 variants (B.1; B.1.1.7 [Alpha]; B.1.351 [Beta]) at various copy levels. We analyzed 57 sets of results from 45 laboratories qualitatively and quantitatively according to the principles of ISO 16140-2:2016. More than 95% of analysts detected the SARS-CoV2 RNA in MTM at ≥500 copies for all 3 variants. In addition, for nucleocapsid markers N1 and N2, 81% and 92% of the analysts detected ≤20 copies in the assays, respectively. The analytical specificity of the evaluated methods was >99%. Participating laboratories were able to assess their current method performance, identify possible limitations, and recognize method strengths as part of a continuous learning environment to support the critical need for the reliable diagnosis of COVID-19 in potentially infected animals and humans.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Gregory H Tyson
- Division of Food Processing Science and Technology, U.S. Food and Drug Administration, Bedford Park, IL, USA
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Huang J, Ding Y, Yao J, Peng K, Deng K, Zhang M, Zhang Y, Zuo J. The SARS-CoV-2 rS1-E-PLGA nanovaccine and evaluation of its immune effect in BALB/c mice. Eur Rev Med Pharmacol Sci 2022; 26:5255-5263. [PMID: 35916825 DOI: 10.26355/eurrev_202207_29316] [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: 06/15/2023]
Abstract
OBJECTIVE Vaccination is an important method for preventing COVID-19 infection. However, certain vaccines do not meet the current needs. To improve the vaccine effect, discard ineffective antigens, and focus on high-quality antigenic clusters, S1-E bivalent antigens were designed. MATERIALS AND METHODS Vaccine delivery is performed using poly (lactic-co-glycolic acid) (PLGA). Here, the recombinant S1-E (rS1-E) was covered on PLGA and injected intramuscularly into mice. In total, 48 BALB/c mice were randomly divided into six groups with 8 mice in each group. The mice received intramuscular injections. Prior to vaccination, the hydrophobicity of the rS1-E and the antigenic site of the E protein were both analysed. The morphology, zeta potential, and particle size distribution of rS1-E-PLGA were examined. Anti-S1 and anti-E antibodies were detected in mouse serum by ELISA. Neutralising an-tibodies were detected by co-incubating the pseudovirus with the obtained serum. IL-2 and TNF-α levels were also measured. RESULTS The designed recombinant S1-E protein was successfully coated on PLGA nanoparticles. rS1-E-PLGA nanovaccine has suitable size, shape, good stability, sustained release and other characteristics. Importantly, mice were stimulated with rS1-E-PLGA nanovaccines to produce high-titre antibodies and a good cellular immune response. CONCLUSIONS Our results indicate that rS1-E-PLGA nanovaccine may provide a good protective effect, and the vaccine should be further investigated in human clinical trials for use in vaccination or as a booster.
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Affiliation(s)
- J Huang
- The Laboratory of Translational Medicine, Nanhua Hospital Affiliated to University of South China, The Third Affiliated Hospital of University of South China, Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hengyang, Hunan, P.R. China.
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Zhang Z, Deng K, Kang Z, Wang F, Fan Y. MicroRNA profiling reveals miR‐145‐5p inhibits goat myoblast differentiation by targeting the coding domain sequence of USP13. FASEB J 2022; 36:e22370. [DOI: 10.1096/fj.202200246r] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/29/2022] [Accepted: 05/10/2022] [Indexed: 12/14/2022]
Affiliation(s)
- Zhen Zhang
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Kaiping Deng
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Ziqi Kang
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Feng Wang
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Yixuan Fan
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
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19
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Wang JJ, Chi XT, Wang WW, Deng K. Analysis of contrast-enhanced spectral chest CT optimal monochromatic imaging combined with ASIR and ASIR-V. Eur Rev Med Pharmacol Sci 2022; 26:1930-1938. [PMID: 35363342 DOI: 10.26355/eurrev_202203_28339] [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: 06/14/2023]
Abstract
OBJECTIVE The aim of the study was to explore the application of spectral chest CT optimal monochromatic imaging combined with ASIR and ASIR-V to optimize the image quality in the arterial phase. PATIENTS AND METHODS 62 patients who had undergone contrast-enhanced chest CT examination using spectral CT were included. Twelve sets of arterial phase images were acquired using GSI mode. The CNR, BHA values and subjective scores were statistically analysed. Thus, optimal monochromatic images were obtained. Then, the images were acquired by reconstruction using ASIR and ASIR-V at 30%, 50% and 70% levels. Six sets of images were obtained and compared with QC and the monochromatic image under FBP mode. RESULTS In FBP mode, the CNR of 80-keV images was 7.7±2.0, showing no significant difference with QC images (p > 0.05). The BHA value in the blood vessels was 45.2±23.1, which was lower than that in QC images (p < 0.05). The subjective image quality score of 80-keV images was 4.50±0.62. No significant difference was found in QC images (p > 0.05). The subjective score of the artefacts was 2.45±0.62, which was lower than that of QC images (p < 0.05). Thus, 80 keV was chosen as the optimal monochromatic energy to be reconstructed with ASIR and ASIR-V. The CNR of the 80keV+50% ASIR-V group was 13.9±4.3, which was higher than those of 140-kVp and 80-keV images in FBP (p < 0.05). The subjective score was 4.90±0.298, which was higher than that of other groups (p < 0.05). CONCLUSIONS Compared with conventional chest CT images in the arterial phase, 80keV+50% ASIR-V images can effectively eliminate beam-hardening artefacts and improve image quality.
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Affiliation(s)
- J-J Wang
- Department of Ultrasound, Jinan Maternity and Child Care Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, P.R. China.
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20
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Zhao YL, Deng K, Shi JC. fs laser-induced filament study of aliphatic nitroalkanes: correlation between molecular structure and spectroscopic evolution of the filament. Analyst 2022; 147:889-896. [DOI: 10.1039/d1an02002a] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
fs laser-induced filament and breakdown spectroscopy can be used for studying the correlation between the molecular structure and spectroscopic evolution of the filament.
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Affiliation(s)
- Y. L. Zhao
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan, People's Republic of China
| | - K. Deng
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, People's Republic of China
| | - J. C. Shi
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan, People's Republic of China
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21
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Zhang Z, Fan Y, Deng K, Liang Y, Zhang G, Gao X, El-Samahy MA, Zhang Y, Deng M, Wang F. Circular RNA circUSP13 sponges miR-29c to promote differentiation and inhibit apoptosis of goat myoblasts by targeting IGF1. FASEB J 2021; 36:e22097. [PMID: 34935184 DOI: 10.1096/fj.202101317r] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/10/2021] [Accepted: 11/29/2021] [Indexed: 12/24/2022]
Abstract
Circular RNAs (circRNAs) are an indispensable element of post-transcriptional gene regulation, influencing a variety of biological processes including myogenic differentiation; however, little is known about the function of circRNA in goat myogenic differentiation. Using RNA-sequencing data from our laboratory, we explored the influences of circUSP13, as a candidate circRNA, on myoblast differentiation since its expression is higher in myoblasts of lamb (first day of age) than that of the fetus (75th day of pregnancy). In in vitro experiments, circUSP13 significantly promoted differentiation and inhibited apoptosis in goat primary myoblasts. Mechanistically, circUSP13 localized with miR-29c in the cytoplasm of goat myoblasts to regulate IGF1 expression. We further demonstrated that circUSP13 sponges miR-29c, promoting IGF1 expression that upregulated the expression of MyoG and MyHC. Thus, our results identified circUSP13 as a molecular marker for breeding programs of mutton production, as well as the circUSP13-miR-29c-IGF1 axis as a potential therapeutic target for combating muscle wasting.
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Affiliation(s)
- Zhen Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Yixuan Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Kaiping Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Yaxu Liang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Guomin Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Xiaoxiao Gao
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - M A El-Samahy
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Yanli Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Mingtian Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Feng Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
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22
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Deng K, Kovalev A, Rajabi H, Schaber CF, Dai ZD, Gorb SN. The damping properties of the foam-filled shaft of primary feathers of the pigeon Columba livia. Naturwissenschaften 2021; 109:1. [PMID: 34860292 PMCID: PMC8642350 DOI: 10.1007/s00114-021-01773-7] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/17/2021] [Accepted: 11/22/2021] [Indexed: 11/26/2022]
Abstract
The avian feather combines mechanical properties of robustness and flexibility while maintaining a low weight. Under periodic and random dynamic loading, the feathers sustain bending forces and vibrations during flight. Excessive vibrations can increase noise, energy consumption, and negatively impact flight stability. However, damping can alter the system response, and result in increased stability and reduced noise. Although the structure of feathers has already been studied, little is known about their damping properties. In particular, the link between the structure of shafts and their damping is unknown. This study aims at understanding the structure-damping relationship of the shafts. For this purpose, laser Doppler vibrometry (LDV) was used to measure the damping properties of the feather shaft in three segments selected from the base, middle, and tip. A combination of scanning electron microscopy (SEM) and micro-computed tomography (µCT) was used to investigate the gradient microstructure of the shaft. The results showed the presence of two fundamental vibration modes, when mechanically excited in the horizontal and vertical directions. It was also found that the base and middle parts of the shaft have higher damping ratios than the tip, which could be attributed to their larger foam cells, higher foam/cortex ratio, and higher percentage of foam. This study provides the first indication of graded damping properties in feathers.
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Affiliation(s)
- K Deng
- Functional Morphology and Biomechanics, Institute of Zoology, Kiel University, Kiel, Germany.
| | - A Kovalev
- Functional Morphology and Biomechanics, Institute of Zoology, Kiel University, Kiel, Germany
| | - H Rajabi
- School of Engineering, London South Bank University, London, England
| | - C F Schaber
- Functional Morphology and Biomechanics, Institute of Zoology, Kiel University, Kiel, Germany
| | - Z D Dai
- Institute of Bioinspired Structure and Surface Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - S N Gorb
- Functional Morphology and Biomechanics, Institute of Zoology, Kiel University, Kiel, Germany
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23
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Deng K, Fan Y, Liang Y, Cai Y, Zhang G, Deng M, Wang Z, Lu J, Shi J, Wang F, Zhang Y. FTO-mediated demethylation of GADD45B promotes myogenesis through the activation of p38 MAPK pathway. Mol Ther Nucleic Acids 2021; 26:34-48. [PMID: 34513292 PMCID: PMC8408560 DOI: 10.1016/j.omtn.2021.06.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 11/11/2020] [Accepted: 06/14/2021] [Indexed: 12/14/2022]
Abstract
N6-methyladenosine (m6A) modification plays a critical role in mammalian development. However, the role of m6A in the skeletal muscle development remains largely unknown. Here, we report a global m6A modification pattern of goat skeletal muscle at two key development stages and identified that the m6A modification regulated the expression of the growth arrest and DNA damage-inducible 45B (GADD45B) gene, which is involved in myogenic differentiation. We showed that GADD45B expression increased during myoblast differentiation, whereas the downregulation of GADD45B inhibits myogenic differentiation and mitochondrial biogenesis. Moreover, the expression of GADD45B regulates the expression of myogenic regulatory factors and peroxisome proliferator-activated receptor gamma coactivator 1 alpha by activating the p38 mitogen-activated protein kinase (MAPK) pathway. Conversely, the inactivation of p38 MAPK abolished the GADD45B-mediated myogenic differentiation. Furthermore, we found that the knockdown of fat mass and obesity-associated protein (FTO) increases GADD45B m6A modification and decreases the stability of GADD45B mRNA, which impairs myogenic differentiation. Our results indicate that the FTO-mediated m6A modification in GADD45B mRNA drives skeletal muscle differentiation by activating the p38 MAPK pathway, which provides a molecular mechanism for the regulation of myogenesis via RNA methylation.
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Affiliation(s)
- Kaiping Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Yixuan Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Yaxu Liang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Cai
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Guomin Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingtian Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhibo Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiawei Lu
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Jianfei Shi
- Haimen Goat Breeding Farm, Nantong 226100, China
| | - Feng Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China.,Institute of Haimen Goat Industry, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanli Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing 210095, China
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24
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Liang Y, Zhang Z, Tu J, Wang Z, Gao X, Deng K, El-Samahy MA, You P, Fan Y, Wang F. γ-Linolenic Acid Prevents Lipid Metabolism Disorder in Palmitic Acid-Treated Alpha Mouse Liver-12 Cells by Balancing Autophagy and Apoptosis via the LKB1-AMPK-mTOR Pathway. J Agric Food Chem 2021; 69:8257-8267. [PMID: 34281337 DOI: 10.1021/acs.jafc.1c02596] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Excessive fat deposition is the main character in nonalcoholic fatty liver disease (NAFLD), while γ-linolenic acid (GLA) is a polyunsaturated fatty acid that can reduce lipid deposition. This study investigated the effect and regulatory mechanism of GLA (100 μM) on lipid metabolism in alpha mouse liver 12 (AML-12) cells treated by 400 μM palmitic acid (PA). GLA reduced lipid content and increased fatty acid β oxidation, as indicated by decreasing triglyceride and cholesterol contents and increasing mRNA and protein expressions of CPT1α and PPARα. GLA relieved oxidative stress caused by PA, upregulated mRNA levels of superoxide dismutase and glutathione peroxidase, and decreased reactive oxygen species content. GLA reduced apoptosis, as indicated by decreases in the BAX/BCL2 expression level and apoptosis percentage. GLA activated autophagy, autophagosome-lysosome fusion, and LKB1-AMPK-mTOR signaling and upregulated mRNA and protein expressions of Beclin-1, autophagy-related 5, and liver kinase B1 (LKB1). These effects of GLA on lipid metabolism disorders of PA-treated hepatocytes were reversed by autophagy inhibitor 3MA and AMPK inhibitor compound C, confirming our conclusions. Overall, GLA can protect AML-12 cells from lipid metabolism disorder caused by PA via balancing autophagy and apoptosis mediated by the LKB1-AMPK-mTOR pathway. Consequently, GLA, as a dietary supplement, can help to prevent and treat NAFLD by regulating lipid metabolism and autophagy.
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Affiliation(s)
- Yaxu Liang
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Zhen Zhang
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Jiayu Tu
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Zhibo Wang
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Xiaoxiao Gao
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Kaiping Deng
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - M A El-Samahy
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Peihua You
- Portal Agri-Industries Co., Ltd., Xingdian Street, Pikou District, Nanjing 210095, PR China
| | - Yixuan Fan
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Feng Wang
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
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25
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Deng K, Uhlig S, Ip HS, Lea Killian M, Goodman LB, Nemser S, Ulaszek J, Pickens S, Newkirk R, Kmet M, Frost K, Hettwer K, Colson B, Nichani K, Schlierf A, Tkachenko A, Reddy R, Reimschuessel R. Interlaboratory comparison of SARS-CoV2 molecular detection assays in use by U.S. veterinary diagnostic laboratories. J Vet Diagn Invest 2021; 33:1039-1051. [PMID: 34293974 PMCID: PMC8532215 DOI: 10.1177/10406387211029913] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 01/03/2023] Open
Abstract
The continued search for intermediate hosts and potential reservoirs for
SARS-CoV2 makes it clear that animal surveillance is critical in outbreak
response and prevention. Real-time RT-PCR assays for SARS-CoV2 detection can
easily be adapted to different host species. U.S. veterinary diagnostic
laboratories have used the CDC assays or other national reference laboratory
methods to test animal samples. However, these methods have only been evaluated
using internal validation protocols. To help the laboratories evaluate their
SARS-CoV2 test methods, an interlaboratory comparison (ILC) was performed in
collaboration with multiple organizations. Forty-four sets of 19 blind-coded RNA
samples in Tris-EDTA (TE) buffer or PrimeStore transport medium were shipped to
42 laboratories. Results were analyzed according to the principles of the
International Organization for Standardization (ISO) 16140-2:2016 standard.
Qualitative assessment of PrimeStore samples revealed that, in approximately
two-thirds of the laboratories, the limit of detection with a probability of
0.95 (LOD95) for detecting the RNA was ≤20 copies per PCR reaction, close to the
theoretical LOD of 3 copies per reaction. This level of sensitivity is not
expected in clinical samples because of additional factors, such as sample
collection, transport, and extraction of RNA from the clinical matrix.
Quantitative assessment of Ct values indicated that reproducibility standard
deviations for testing the RNA with assays reported as N1 were slightly lower
than those for N2, and they were higher for the RNA in PrimeStore medium than
those in TE buffer. Analyst experience and the use of either a singleplex or
multiplex PCR also affected the quantitative ILC test results.
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Affiliation(s)
- Kaiping Deng
- Division of Food Processing Science and Technology, U.S. Food and Drug Administration, Bedford Park, IL, USA
| | | | - Hon S Ip
- National Wildlife Health Center, U.S. Geological Survey, Madison, WI, USA
| | - Mary Lea Killian
- National Animal and Plant Health Inspection Service Laboratories, Veterinary Services, U.S. Department of Agriculture, Ames, IA, USA
| | - Laura B Goodman
- College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Sarah Nemser
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, USA
| | - Jodie Ulaszek
- Institute for Food Safety and Health, Illinois Institute of Technology, Bedford Park, IL, USA
| | | | - Robert Newkirk
- Division of Food Processing Science and Technology, U.S. Food and Drug Administration, Bedford Park, IL, USA
| | - Matthew Kmet
- Division of Food Processing Science and Technology, U.S. Food and Drug Administration, Bedford Park, IL, USA
| | | | | | | | | | | | - Andriy Tkachenko
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, USA
| | - Ravinder Reddy
- Division of Food Processing Science and Technology, U.S. Food and Drug Administration, Bedford Park, IL, USA
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26
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Stewart DS, Rana YS, Deng K, Vijayakumar G, Yin L, Salazar JK, Tortorello ML. Effect of Time, Temperature, and Transport Media on the Recovery of Listeria monocytogenes from Environmental Swabs. J Food Prot 2021; 84:811-819. [PMID: 33290508 DOI: 10.4315/jfp-20-334] [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: 08/17/2020] [Accepted: 12/06/2020] [Indexed: 11/11/2022]
Abstract
ABSTRACT Environmental monitoring for Listeria monocytogenes in food processing environments is key for ensuring the safety of ready-to-eat foods. For sampling, swabs are often hydrated with a wetting or transport medium that may contain neutralizers and other ingredients. After swabbing the environment, the swabs may then be transported or shipped cold to an off-site laboratory for testing, ideally within 48 h. Extended shipping times may subject the pathogen to increased temperatures in the presence of the wetting medium, organics, and other chemicals from the processing facility that could confound detection. This study evaluated growth and detection of L. monocytogenes on stainless steel exposed to either buffer or sodium hypochlorite before drying. Swabs were rehydrated with Butterfield's phosphate buffer, neutralizing buffer, Letheen broth, or Dey-Engley neutralizing broth before swabbing. Swabs were stored in the presence of no added food, cheese whey, or ice cream under both optimal (4°C) and suboptimal (15°C) temperatures for up to 72 h. Overall, there was no growth of L. monocytogenes at 4°C through 72 h of storage, although enrichment from these swabs was dependent on the presence and type of food matrix. Pathogen growth during storage at 15°C was more variable and depended on both the food matrix and transport media used, with Dey-Engley and Letheen broths allowing for the highest population increases. Overall, more enrichments resulting in L. monocytogenes detections were observed when using Letheen broth and neutralizing buffer than Dey-Engley broth, which resulted in fewer detections at 15°C. Logistic regression and Cochran-Mantel-Haenszel analyses determined that storage temperature, transport media, and food matrix all significantly affected detection of L. monocytogenes, whereas storage time did not have a clear effect on recovery from swabs. HIGHLIGHTS
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Affiliation(s)
- Diana S Stewart
- Division of Food Processing Science and Technology, U.S. Food and Drug Administration, 6502 South Archer Road, Bedford Park, Illinois 60501.,(ORCID: https://orcid.org/0000-0002-3792-1845 [D.S.S.])
| | - Yadwinder Singh Rana
- Institute for Food Safety and Health, Illinois Institute of Technology, Bedford Park, Illinois 60501
| | - Kaiping Deng
- Institute for Food Safety and Health, Illinois Institute of Technology, Bedford Park, Illinois 60501
| | - Geethaanjali Vijayakumar
- Institute for Food Safety and Health, Illinois Institute of Technology, Bedford Park, Illinois 60501
| | - Lanlan Yin
- Bioinformatics and Biostatistics Staff, U.S. Food and Drug Administration, College Park, Maryland 20742, USA
| | - Joelle K Salazar
- Division of Food Processing Science and Technology, U.S. Food and Drug Administration, 6502 South Archer Road, Bedford Park, Illinois 60501
| | - Mary Lou Tortorello
- Division of Food Processing Science and Technology, U.S. Food and Drug Administration, 6502 South Archer Road, Bedford Park, Illinois 60501
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27
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Deng K, Zhang Z, Ren C, Liang Y, Gao X, Fan Y, Wang F. FTO regulates myoblast proliferation by controlling CCND1 expression in an m 6A-YTHDF2-dependent manner. Exp Cell Res 2021; 401:112524. [PMID: 33651996 DOI: 10.1016/j.yexcr.2021.112524] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 11/30/2020] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 12/14/2022]
Abstract
N6-Methyladenosine (m6A) modification is the most abundant chemical modification in mRNA, and it participates in various biological processes, such as cell differentiation and proliferation. However, little is known about the function of m6A demethylase fat mass and obesity-associated (FTO) in myoblast proliferation. Here, we demonstrated that knockdown of FTO can significantly inhibit myoblast proliferation and promote apoptosis. RNA sequencing analysis revealed that a lot of downregulated genes in FTO knockdown cells are associated with cell cycle and apoptosis. Furthermore, silencing FTO drastically decreased cyclin D1 (CCND1) expression through YTHDF2-mediated mRNA degradation, thereby delaying the progression of G1 phase, and leading to impaired myoblast proliferation. These findings unraveled that FTO regulates myoblast proliferation by controlling CCND1 expression in an m6A-YTHDF2-dependent manner, which highlights the critical roles of m6A modification in myoblast proliferation.
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Affiliation(s)
- Kaiping Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhen Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Caifang Ren
- Department of Pathology, School of Medicine, Jiangsu University, Zhenjiang, 212000, China
| | - Yaxu Liang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaoxiao Gao
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yixuan Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, 210095, China.
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28
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Li X, Yao X, Xie H, Deng M, Gao X, Deng K, Bao Y, Wang Q, Wang F. Effects of SPATA6 on proliferation, apoptosis and steroidogenesis of Hu sheep Leydig cells in vitro. Theriogenology 2021; 166:9-20. [PMID: 33667862 DOI: 10.1016/j.theriogenology.2021.02.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 10/08/2020] [Revised: 01/19/2021] [Accepted: 02/14/2021] [Indexed: 02/06/2023]
Abstract
This study aimed to investigate the expression pattern of spermatogenesis associated protein 6 (SPATA6) in Hu sheep testis and to ascertain the effects of SPATA6 on sheep Leydig cells (LCs) function linked to spermatogenesis. In the present study, we detected a 1970 bp cDNA fragment of SPATA6 included a 1467 bp coding sequence which encoded 487 amino acids. Meanwhile, sheep SPATA6 shared 51.70%-97.41% amino acid sequences with its orthologs compared with other species. In addition, SPATA6 was highly expressed in testis and localized in cytoplasm and nucleus of LCs as well as spermatogenic cells at different stages. Compared to the negative control (NC), SPATA6 interference promoted apoptosis of LCs with the increase of BAX/BCL-2 mRNA and protein levels, while the results of SPATA6 overexpression were on the contrary. Meanwhile, cell cycle was blocked at G2/M phase and CDK1 and CCNB1 were down-regulated after SPATA6 interference. SPATA6 overexpression induced cell cycle transfer G0/G1 into S and G2/M phase with upregulation of CDK1, CDK4, CCND1 and CCND2. Moreover, the secretion of testosterone hormone and the expression of StAR in LCs with SPATA6 overexpression were significantly promoted. Overall, our data suggest that SPATA6 is an important functional molecule of spermatogenesis, via regulating the proliferation, apoptosis and testosterone biosynthesis of Hu sheep LCs. These findings will enhance the understanding of the roles of SPATA6 in sheep spermatogenesis.
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Affiliation(s)
- Xiaodan Li
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaolei Yao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Haiqiang Xie
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mingtian Deng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaoxiao Gao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kaiping Deng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yongjin Bao
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qi Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China; Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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Liang Y, Huang X, Zhang Z, Deng K, An S, Gao X, Wang Z, Liu Z, Wang F, Liu D, Fan Y. Spirulina supplementation improves lipid metabolism and autophagic activities in the liver and muscle of Hu lambs fed a high-energy diet. Arch Anim Nutr 2020; 74:476-495. [PMID: 33059482 DOI: 10.1080/1745039x.2020.1820806] [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] [Indexed: 01/12/2023]
Abstract
The current study aimed to examine the effects of dietary spirulina supplementation in high-energy (HE) diets on fatty acid metabolism in sheep, and preliminarily explored the potential mechanisms underlying the associated autophagy-mediated regulation of lipid metabolism. In a 2 × 3 factorial design, including six treatment combinations of two metabolisable energy diets (10 and 11 MJ/kg DM), three spirulina supplementation levels (0, 1%, and 3%) were used. Serum alanineaminotransferase (ALT) (p = 0.003) and aspartatetransaminase (AST) (p = 0.002) activities increased, whereas total PUFA content (p < 0.001) decreased in the liver of lambs fed a HE diet. With the addition of spirulina, serum ALT (p = 0.037) and AST (p = 0.014) activities decreased, whereas EPA (p = 0.004), GLA (p = 0.019), n-6 PUFA (p = 0.005), and total PUFA contents (p = 0.019) increased. Moreover, the crude protein content in the Longissimus thoracis et lumborum (LTL) increased (p = 0.013), the expression of PPARα and PPARγ was up-regulated, while ELOVL2 was down-regulated in liver and LTL (p < 0.05). Spirulina supplementation increased mRNA expression levels of autophagy-associated genes, including that of Beclin-1, AMPK, and ULK1 (p < 0.05). In conclusion, spirulina supplementation in a HE diet exerted a protective effect on the liver, increased PUFA content, and modulated expression levels of autophagy-related genes in growing lambs.
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Affiliation(s)
- Yaxu Liang
- Institute of Goats and Sheep Science, Nanjing Agricultural University , Nanjing, Jiangsu, PR China
| | - Xinai Huang
- College of Animal Science and Technology, Yangzhou University, Yangzhou , Jiangsu, PR China
| | - Zhen Zhang
- Institute of Goats and Sheep Science, Nanjing Agricultural University , Nanjing, Jiangsu, PR China
| | - Kaiping Deng
- Institute of Goats and Sheep Science, Nanjing Agricultural University , Nanjing, Jiangsu, PR China
| | - Shiyu An
- Institute of Goats and Sheep Science, Nanjing Agricultural University , Nanjing, Jiangsu, PR China
| | - Xiaoxiao Gao
- Institute of Goats and Sheep Science, Nanjing Agricultural University , Nanjing, Jiangsu, PR China
| | - Zhibo Wang
- Institute of Goats and Sheep Science, Nanjing Agricultural University , Nanjing, Jiangsu, PR China
| | - Zhinan Liu
- Department of Technology Research and Development, Inner Mongolia Caolv Agricultural Science and Technology Development Co., Ltd , Ordos, Inner Mongolia, PR China
| | - Feng Wang
- Institute of Goats and Sheep Science, Nanjing Agricultural University , Nanjing, Jiangsu, PR China
| | - Dong Liu
- Department of Technology Research and Development, Inner Mongolia Caolv Agricultural Science and Technology Development Co., Ltd , Ordos, Inner Mongolia, PR China
| | - Yixuan Fan
- Institute of Goats and Sheep Science, Nanjing Agricultural University , Nanjing, Jiangsu, PR China
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Wang Y, Li L, Deng K, Liu J, Liu Y, Zou K, Hao G, Sun X. PBI1 Comparison of the Combination of Recombinant Follicle-Stimulating Hormone and Recombinant Luteinizing Hormone Protocol Versus Human Menopausal Gonadotropin Protocol in Controlled Ovarian Stimulation: A Systematic Review and Meta-Analysis. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.009] [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] [Indexed: 10/23/2022]
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Ren C, Deng K, Wang Z, Deng M, Fan Y, Zhang Y, Ma J, Wang S, Liu Z, Wang F. Reinterpreting sheep muscle strand-specific RNA sequencing data showing extensive 3'UTR extensions. Anim Genet 2020; 51:788-798. [PMID: 32696483 DOI: 10.1111/age.12987] [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: 10/15/2019] [Revised: 05/16/2020] [Accepted: 06/23/2020] [Indexed: 12/01/2022]
Abstract
The more complex 3' UTR in higher organisms may have the function of increasing post-transcriptional gene regulation. Recent RNA sequencing technologies have provided us with the possibility to capture the complete 3' UTR landscape of different species and cells. However, no systematic analysis of sheep-related 3' UTR has been performed. Here, we conducted a detailed analysis of the 3' UTR with the primary goal of identifying intact 3' UTR landscapes in the sheep muscles of the three developmental stages. Based on strand-specific RNA sequencing (ssRNA-seq) data, we found that thousands of genes in sheep muscle are continuously transcribed after the UTR of the reference genome (Oar_v4.0). More than 66% of the 3' UTR extensions exhibit similar expression trends to their upstream gene exons. These 3' UTR extensions strongly enrich thousands of conserved microRNA binding sites. The 3' UTR extension-associated RNA of PFKM (PuaRNA) was predicted to be derived from the 3' UTR of PFKM. In sheep myocytes, myotubes and various tissues, the expression pattern of PuaRNA is positively correlated with that of PFKM. Taken together, these new 3' UTR annotations greatly extend the range of mammalian post-transcriptional regulatory networks, which have a particular impact on the regulation of sheep muscle development.
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Affiliation(s)
- Caifang Ren
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China.,School of Medicine, Jiangsu University, Zhengjiang, Jiangsu, 212013, China
| | - Kaiping Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China
| | - Zhibo Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China
| | - Mingtian Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China
| | - Yixuan Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China
| | - Yanli Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China
| | - Jianyu Ma
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China
| | - Shuting Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China
| | - Zifei Liu
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China
| | - Feng Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Weigang Street, Xuanwu District, Nanjing, Jiangsu, 210095, China
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Yuan WH, Liu HL, Wei WZ, Ma ZY, Hao P, Deng Z, Deng K, Zhang J, Lu ZH. In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence. J Vis Exp 2020. [PMID: 32597872 DOI: 10.3791/61175] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Accurate control of the polarization states of laser light is important in precision measurement experiments. In experiments involving the use of a vacuum environment, the stress-induced birefringence effect of the vacuum windows will affect the polarization states of laser light inside the vacuum system, and it is very difficult to measure and optimize the polarization states of the laser light in situ. The purpose of this protocol is to demonstrate how to optimize the polarization states of the laser light based on the fluorescence of ions in the vacuum system, and how to calculate the birefringence of vacuum windows based on azimuthal angles of external wave plates with Mueller matrix. The fluorescence of 25Mg+ ions induced by laser light that is resonant with the transition of |32P3/2,F = 4, mF = 4 → |32S1/2,F = 3, mF = 3 is sensitive to the polarization state of the laser light, and maximum fluorescence will be observed with pure circularly polarized light. A combination of half-wave plate (HWP) and quarter-wave plate (QWP) can achieve arbitrary phase retardation and is used for compensating the birefringence of the vacuum window. In this experiment, the polarization state of the laser light is optimized based on the fluorescence of 25Mg+ ion with a pair of HWP and QWP outside the vacuum chamber. By adjusting the azimuthal angles of the HWP and QWP to obtain maximum ion fluorescence, one can obtain a pure circularly polarized light inside the vacuum chamber. With the information on the azimuthal angles of the external HWP and QWP, the birefringence of the vacuum window can be determined.
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Affiliation(s)
- W H Yuan
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - H L Liu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology;
| | - W Z Wei
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - Z Y Ma
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - P Hao
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - Z Deng
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - K Deng
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - J Zhang
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology
| | - Z H Lu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology;
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Fan Y, Liang Y, Deng K, Zhang Z, Zhang G, Zhang Y, Wang F. Analysis of DNA methylation profiles during sheep skeletal muscle development using whole-genome bisulfite sequencing. BMC Genomics 2020; 21:327. [PMID: 32349667 PMCID: PMC7191724 DOI: 10.1186/s12864-020-6751-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [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: 02/05/2020] [Accepted: 04/21/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND DNA methylation is an epigenetic regulatory form that plays an important role in regulating the gene expression and the tissues development.. However, DNA methylation regulators involved in sheep muscle development remain unclear. To explore the functional importance of genome-scale DNA methylation during sheep muscle growth, this study systematically investigated the genome-wide DNA methylation profiles at key stages of Hu sheep developmental (fetus and adult) using deep whole-genome bisulfite sequencing (WGBS). RESULTS Our study found that the expression levels of DNA methyltransferase (DNMT)-related genes were lower in fetal muscle than in the muscle of adults. The methylation levels in the CG context were higher than those in the CHG and CHH contexts, and methylation levels were highest in introns, followed by exons and downstream regions. Subsequently, we identified 48,491, 17, and 135 differentially methylated regions (DMRs) in the CG, CHG, and CHH sequence contexts and 11,522 differentially methylated genes (DMGs). The results of bisulfite sequencing PCR (BSP) correlated well with the WGBS-Seq data. Moreover, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) functional annotation analysis revealed that some DMGs were involved in regulating skeletal muscle development and fatty acid metabolism. By combining the WGBS-Seq and previous RNA-Seq data, a total of 159 overlap genes were obtained between differentially expressed genes (DEGs) and DMGs (FPKM > 10 and fold change > 4). Finally, we found that 9 DMGs were likely to be involved in muscle growth and metabolism of Hu sheep. CONCLUSIONS We systemically studied the global DNA methylation patterns of fetal and adult muscle development in Hu sheep, which provided new insights into a better understanding of the epigenetic regulation of sheep muscle development.
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Affiliation(s)
- Yixuan Fan
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yaxu Liang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kaiping Deng
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhen Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Guomin Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yanli Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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Deng K, Ren C, Fan Y, Liu Z, Zhang G, Zhang Y, You P, Wang F. miR-27a is an important adipogenesis regulator associated with differential lipid accumulation between intramuscular and subcutaneous adipose tissues of sheep. Domest Anim Endocrinol 2020; 71:106393. [PMID: 31731253 DOI: 10.1016/j.domaniend.2019.106393] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 01/20/2019] [Revised: 08/05/2019] [Accepted: 09/04/2019] [Indexed: 01/15/2023]
Abstract
Micro ribonucleic acids (miRNAs) are crucial regulators for various biological processes. Despite important function in the proliferation and differentiation of preadipocytes, miRNA studies are limited in regional differences in adipogenesis. Here, we show that miR-27a plays an important role in regulating differential lipid accumulation between intramuscular (IM) and subcutaneous (SC) adipose tissues in sheep. Invivo, we observed that miR-27a expression in IM adipose tissue is more abundant than in SC adipose tissue. However, the expression of Peroxisome Proliferator-Activated Receptor Gamma (PPARG) and retinoid X receptor alpha (RXR alpha) in IM adipose tissue was significantly lower than that in SC adipose tissue. In the ovine preadipocyte differentiation model, we found that the expression of miR-27a was significantly decreased in differentiated ovine adipocytes. Overexpression of miR-27a significantly downregulated the expression of PPARG and RXR alpha and suppressed the accumulation of triglyceride but promoted the proliferation of ovine preadipocytes. Whereas, inhibition of miR-27a suppressed preadipocyte proliferation but enhanced PPARG and RXR alpha expression and lipid droplet formation. In addition, dual-luciferase activity assays showed that RXR alpha was a direct target of miR-27a. Thus, miR-27a enhances ovine preadipocytes proliferation and inhibits ovine preadipocytes differentiation through regulating the expression of target RXR alpha. Collectively, our study demonstrates the functional importance of miR-27a in ovine adipogenesis and provides novel insights into exploring regional differences in adipogenesis.
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Affiliation(s)
- K Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - C Ren
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Y Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Z Liu
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - G Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Y Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - P You
- Portal Agri-Industries Co, Ltd, Xingdian Street, Pikou District, Nanjing, Jiangsu, China
| | - F Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China; National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, Jiangsu, China.
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Liang Y, Bao Y, Gao X, Deng K, An S, Wang Z, Huang X, Liu D, Liu Z, Wang F, Fan Y. Effects of spirulina supplementation on lipid metabolism disorder, oxidative stress caused by high-energy dietary in Hu sheep. Meat Sci 2020; 164:108094. [PMID: 32146297 DOI: 10.1016/j.meatsci.2020.108094] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 10/30/2019] [Revised: 02/22/2020] [Accepted: 02/24/2020] [Indexed: 12/21/2022]
Abstract
The aim of this study was to investigate the effect of spirulina supplementation in a high-energy (HE) diet on lipid metabolism, oxidative status and immunity in Hu lambs. The lambs were assigned to two groups receiving either a standard diet (ST) or a HE diet. Each group was divided into three subgroups: no spirulina supplementation (control), 1% spirulina supplementation, or 3% spirulina supplementation. The body fat, serum cholesterol, triacylglycerol and oxidative stress increased in lambs fed the HE diet. However, 3% spirulina supplementation in the HE diet reduced above parameters and enhanced antioxidant capacity, including increased SOD activity and T-AOC content in serum and Longissimus thoracis et lumborum (LTL). Additionally, lambs receiving 3% spirulina supplementation showed an improvement in immunity-related parameters, including increased IgG concentration in serum and red and white blood cell counts. In conclusion, 3% spirulina supplementation in HE diet ameliorated lipid metabolic disorder and oxidative stress caused by a HE diet.
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Affiliation(s)
- Yaxu Liang
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Yongjin Bao
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Xiaoxiao Gao
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Kaiping Deng
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Shiyu An
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Zhibo Wang
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Xinai Huang
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, PR China
| | - Dong Liu
- Inner Mongolia Caolv Agricultural Science and Technology Development Co., Ltd, Ordos, Inner Mongolia 016100, PR China
| | - Zhinan Liu
- Inner Mongolia Caolv Agricultural Science and Technology Development Co., Ltd, Ordos, Inner Mongolia 016100, PR China
| | - Feng Wang
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China.
| | - Yixuan Fan
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China.
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Yuan WH, Liu HL, Wei WZ, Ma ZY, Hao P, Deng Z, Deng K, Zhang J, Lu ZH. A simple method for in situ measurement of vacuum window birefringence. Rev Sci Instrum 2019; 90:113001. [PMID: 31779433 DOI: 10.1063/1.5121568] [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] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
We present a simple method to measure the degrees of circular polarization (DoCP) of laser light inside a vacuum chamber and the birefringence of a vacuum window by detecting the fluorescence emitted by Doppler cooled ions in an ion trap. Imperfect laser polarization will cause ions to be pumped to the dark state which will decrease the fluorescence rates of the ions. With a simulation based on the rate equations of the relevant energy levels of 25Mg+ ions, we find that the fluorescence rate is sensitive to the DoCP of the laser. Based on the simulation result, we present a new method to optimize the DoCP of the laser inside the vacuum chamber by adjusting fast axis azimuthal angles of a half-wave plate and a quarter-wave plate outside the vacuum chamber. The laser light is optimized to be circularly polarized with an uncertainty of the DoCP of 7.8 × 10-5. With the obtained polarization information on both sides of the vacuum window and treating the vacuum window as an unknown wave plate, the phase delay and the fast axis azimuthal angle of the vacuum window can be determined in the form of Mueller matrix. The phase delay is determined to be 197.60(39)°, and the fast axis azimuthal angle is determined to be 104.00(5)°.
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Affiliation(s)
- W H Yuan
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - H L Liu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - W Z Wei
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z Y Ma
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - P Hao
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z Deng
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - K Deng
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - J Zhang
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z H Lu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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Pang J, Han L, Liu Z, Zheng J, Zhao J, Deng K, Wang F, Zhang Y. ULK1 affects cell viability of goat Sertoli cell by modulating both autophagy and apoptosis. In Vitro Cell Dev Biol Anim 2019; 55:604-613. [PMID: 31359348 DOI: 10.1007/s11626-019-00371-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 12/28/2018] [Accepted: 05/15/2019] [Indexed: 12/01/2022]
Abstract
Sertoli cells (SCs) are necessary for proper germ cell development and viability. Unc-51 like autophagy activating kinase (ULK1) protein kinase is an important regulator of autophagy activation. This study aims to investigate the role of autophagy promoter ULK1 on cell viability of goat SCs. Our results showed that ULK1 knockdown in goat SCs decreased autophagy activation, which was confirmed by decreased expression of autophagy-related markers including LC3, Beclin1, Atg5, and Atg7 (P < 0.05). Meanwhile, lower ULK1 levels resulted in decreased expressions of goat SC marker genes ABP, AMH, FASL, and GATA4. However, a reverse trend of these parameters occurred when the goat SCs were transfected with ULK1 overexpression construct; higher ULK1 levels in goat SCs also decreased the ratio of Bax/Bcl-2. Moreover, ULK1 overexpression in goat SCs activated the autophagy levels when cells were exposed to an environmental contaminant bisphenol A (BPA). The above results indicated that ULK1 gene might play important roles in goat SC function by regulating cell viability.
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Affiliation(s)
- Jing Pang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Le Han
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Zifei Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Jian Zheng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Jie Zhao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Kaiping Deng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Feng Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Yanli Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
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Deng K, Ren C, Fan Y, Pang J, Zhang G, Zhang Y, You P, Wang F. YAP1 regulates PPARG and RXR alpha expression to affect the proliferation and differentiation of ovine preadipocyte. J Cell Biochem 2019; 120:19578-19589. [DOI: 10.1002/jcb.29265] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/13/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Kaiping Deng
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Caifang Ren
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Yixuan Fan
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Jing Pang
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Guomin Zhang
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Yanli Zhang
- Institute of Sheep and Goat Science Nanjing Agricultural University Nanjing China
| | - Peihua You
- Portal Agri‐Industries Co, Ltd Nanjing China
| | - Feng Wang
- National Experimental Teaching Demonstration Center of Animal Science Nanjing Agricultural University Nanjing China
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Fan Y, Ren C, Meng F, Deng K, Zhang G, Wang F. Effects of algae supplementation in high-energy dietary on fatty acid composition and the expression of genes involved in lipid metabolism in Hu sheep managed under intensive finishing system. Meat Sci 2019; 157:107872. [PMID: 31276903 DOI: 10.1016/j.meatsci.2019.06.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 09/13/2018] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 01/30/2023]
Abstract
This study aims to investigate the effect of algae supplementation in high-energy diet (HE diet) on lipid metabolism of intensive feeding sheep. The lambs were assigned to two groups and received a standard diet (ST diet, 8.40 MJ/kg) or a HE diet (9.70 MJ/kg) based on corn, wheat bran, soybean meal. Each group was divided into two subgroups: control and algae supplement (3%, DM basis). The body fat, serum cholesterol, and oleic acid in the liver and muscle increased in lambs receiving the HE diet. However, after supplementing the microalgae (Schizochytrium sp.) in the HE diet, these parameters were all reduced. In addition, EPA, DHA and CLA cis-9, trans-11 in muscle and liver increased. Algae supplementation also altered the expression of lipid metabolism-related genes, including up-regulated FADS2, ELOVL2, SCD, CPT1α and SREBF-1, and down-regulated PPARα and PPARγ. In conclusion, algae supplementation in ST and HE diets increased n-3PUFA and improved metabolic disorder caused by the HE diet.
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Affiliation(s)
- Yixuan Fan
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Caifang Ren
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Fanxing Meng
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Kaiping Deng
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Guomin Zhang
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China
| | - Feng Wang
- Institute of Goats and Sheep Science, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, PR China.
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Maks N, Ye MU, Swanson S, Lee A, Freeman BB, Deng K. Evaluation of Inactivating Norovirus, Hepatitis A, and Listeria monocytogenes on Raspberries by Sanitizer Spray. J Food Prot 2019; 82:869-877. [PMID: 31017811 DOI: 10.4315/0362-028x.jfp-18-415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
HIGHLIGHTS Chlorine and PAA spray reduced MNV and L. monocytogenes from raspberries by <1.0 log. Residual PAA on raspberries further reduced MNV and Listeria during postspray frozen storage. PAA decayed more slowly than active chlorine on raspberry surfaces. The data suggest that PAA could aid in risk reduction of pathogens on raspberries.
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Affiliation(s)
- Nicole Maks
- Illinois Institute of Technology, Institute for Food Safety and Health, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - M U Ye
- Illinois Institute of Technology, Institute for Food Safety and Health, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - Sara Swanson
- Illinois Institute of Technology, Institute for Food Safety and Health, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - Alvin Lee
- Illinois Institute of Technology, Institute for Food Safety and Health, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - Britt Burton Freeman
- Illinois Institute of Technology, Institute for Food Safety and Health, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - Kaiping Deng
- Illinois Institute of Technology, Institute for Food Safety and Health, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
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41
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Song YS, Stewart D, Reineke K, Wang L, Ma C, Lu Y, Shazer A, Deng K, Tortorello ML. Effects of Package Atmosphere and Storage Conditions on Minimizing Risk of Escherichia coli O157:H7 in Packaged Fresh Baby Spinach. J Food Prot 2019; 82:844-853. [PMID: 31013167 DOI: 10.4315/0362-028x.jfp-18-337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Packaged fresh spinach has been associated with outbreaks of illness caused by Escherichia coli O157:H7. The purpose of this study was to assess the behavior of E. coli O157:H7 in packaged baby spinach in response to storage conditions of temperature and package atmosphere and including effects of inoculation level, spinach leaf damage (cut leaves), internalized or leaf surface contamination, exposure to hypochlorite sanitizer, and package size. Behavior of E. coli O157:H7 inoculated at 2 and 4 log CFU/g on spinach packaged in polymer bags composed of a two-layer laminate (polypropylene and polyethylene) and stored under atmospheres of 20% O2-3% CO2 and 0% O2-15% CO2 (aerobic and anaerobic, respectively) was assessed at 5, 7, 12, and 15°C for up to 14 days. Growth kinetics were calculated using DMFit software. Temperature decreases progressively diminished growth or survival of the pathogen, and an aerobic package atmosphere resulted in longer lag times (4 to 6 days) and lower population levels (0.2 to 1.4 log CFU/g) compared with the anaerobic atmosphere at 15°C. Internalized contamination, leaf cuts, or exposure to 100 ppm of hypochlorite did not result in changes in pathogen behavior compared with controls; however, a growth minimization trend consisting of longer lag times and lower population levels was repeatedly observed in the aerobic compared with the anaerobic package atmospheres. In contrast, growth of indigenous mesophiles and Enterobacteriaceae was unaffected by package atmosphere. Spinach stored at 5 to 7°C in two sizes (5 and 16 oz) of polyethylene terephthalate clamshell packages with ambient air atmospheres was more likely to progress to lower-oxygen conditions in 16-oz compared with 5-oz packages after 7 days of storage (P < 0.05). Practices to maintain aerobic conditions within the package, as well as storage of the package at low temperature, are ways to limit growth of E. coli O157:H7 in packaged spinach.
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Affiliation(s)
- Yoon Seok Song
- 1 U.S. Food and Drug Administration, Division of Food Processing Science and Technology
| | - Diana Stewart
- 1 U.S. Food and Drug Administration, Division of Food Processing Science and Technology
| | - Karl Reineke
- 1 U.S. Food and Drug Administration, Division of Food Processing Science and Technology
| | - Liao Wang
- 2 Illinois Institute of Technology, Institute for Food Safety and Health, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - Chong Ma
- 2 Illinois Institute of Technology, Institute for Food Safety and Health, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - Yin Lu
- 2 Illinois Institute of Technology, Institute for Food Safety and Health, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - Arlette Shazer
- 1 U.S. Food and Drug Administration, Division of Food Processing Science and Technology
| | - Kaiping Deng
- 1 U.S. Food and Drug Administration, Division of Food Processing Science and Technology
| | - Mary Lou Tortorello
- 1 U.S. Food and Drug Administration, Division of Food Processing Science and Technology
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42
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Deng K, Ren C, Zhang G, Zhang Y, You P, Wang F, Fan Y. Polyphenol Compounds Attenuate High‐Dose PUFA‐Induced Oxidative Damage in Adipocytes. EUR J LIPID SCI TECH 2019. [DOI: 10.1002/ejlt.201800311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kaiping Deng
- National Experimental Teaching Demonstration Center of Animal ScienceNanjing Agricultural UniversityNanjing210095China
| | - Caifang Ren
- National Experimental Teaching Demonstration Center of Animal ScienceNanjing Agricultural UniversityNanjing210095China
| | - Guomin Zhang
- National Experimental Teaching Demonstration Center of Animal ScienceNanjing Agricultural UniversityNanjing210095China
| | - Yanli Zhang
- National Experimental Teaching Demonstration Center of Animal ScienceNanjing Agricultural UniversityNanjing210095China
| | - Peihua You
- Portal Agri‐Industries Co.Ltd.Xingdian Street, Pikou DistrictNanjing CityJiangsu ProvinceChina
| | - Feng Wang
- National Experimental Teaching Demonstration Center of Animal ScienceNanjing Agricultural UniversityNanjing210095China
| | - Yixuan Fan
- National Experimental Teaching Demonstration Center of Animal ScienceNanjing Agricultural UniversityNanjing210095China
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43
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Gao X, Yao X, Yang H, Deng K, Guo Y, Zhang T, Zhang G, Wang F. Role of FGF9 in sheep testis steroidogenesis during sexual maturation. Anim Reprod Sci 2018; 197:177-184. [DOI: 10.1016/j.anireprosci.2018.08.026] [Citation(s) in RCA: 8] [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: 03/28/2018] [Revised: 07/28/2018] [Accepted: 08/20/2018] [Indexed: 12/22/2022]
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Deng K, Ma T, Wang Z, TanTai W, Nie H, Guo Y, Wang F, Fan Y. Effects of perilla frutescens seed supplemented to diet on fatty acid composition and lipogenic gene expression in muscle and liver of Hu lambs. Livest Sci 2018. [DOI: 10.1016/j.livsci.2018.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Deng K, Ren C, Liu Z, Gao X, Fan Y, Zhang G, Zhang Y, Ma ES, Wang F, You P. Characterization of RUNX1T1, an Adipogenesis Regulator in Ovine Preadipocyte Differentiation. Int J Mol Sci 2018; 19:ijms19051300. [PMID: 29701705 PMCID: PMC5983735 DOI: 10.3390/ijms19051300] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 04/10/2018] [Accepted: 04/12/2018] [Indexed: 12/23/2022] Open
Abstract
Runt-related transcription factor 1 translocation partner 1 (RUNX1T1), a potential novel regulator of adipogenesis, exists in two splice variants: a long (RUNX1T1-L) and a short (RUNX1T1-S) isoform. However, there is no data showing the existence of RUNX1T1 in ovine subcutaneous fat at different stages of developmental and its role on ovine adipogenesis. Therefore, the objectives of this study were to evaluate the presence of RUNX1T1 in subcutaneous fat of five-day-old to 24-month-old sheep and to investigate the role of RUNX1T1 in ovine adipogenesis. In this study, we detected a 1829 bp cDNA fragment of RUNX1T1 which contains a 1815 bp coding sequence that encodes 602-amino acid and 14 bp of 5′ untranslated region, respectively. The amino acid sequence of RUNX1T1 has 31.18–94.21% homology with other species’ protein sequences. During fat development, the RUNX1T1 protein expression was higher in subcutaneous fat of 24-month-old Hu sheep. In addition, the expression of RUNX1T1-L mRNA decreased first, then subsequently increased during ovine preadipocyte differentiation. Knockdown of RUNX1T1-L in ovine preadipocytes promoted preadipocyte differentiation and lipid accumulation. Taken together, our data suggests that RUNX1T1 is an important functional molecule in adipogenesis. Moreover, it showed for the first time that RUNX1T1-L was negatively correlated with the ovine preadipocyte differentiation.
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Affiliation(s)
- Kaiping Deng
- Institute of Sheep and Goat Science; Nanjing Agricultural University, Nanjing 210095, China.
| | - Caifang Ren
- Institute of Sheep and Goat Science; Nanjing Agricultural University, Nanjing 210095, China.
| | - Zifei Liu
- Institute of Sheep and Goat Science; Nanjing Agricultural University, Nanjing 210095, China.
| | - Xiaoxiao Gao
- Institute of Sheep and Goat Science; Nanjing Agricultural University, Nanjing 210095, China.
| | - Yixuan Fan
- Institute of Sheep and Goat Science; Nanjing Agricultural University, Nanjing 210095, China.
| | - Guomin Zhang
- Institute of Sheep and Goat Science; Nanjing Agricultural University, Nanjing 210095, China.
| | - Yanli Zhang
- Institute of Sheep and Goat Science; Nanjing Agricultural University, Nanjing 210095, China.
| | - Ei-Samahy Ma
- Institute of Sheep and Goat Science; Nanjing Agricultural University, Nanjing 210095, China.
| | - Feng Wang
- Institute of Sheep and Goat Science; Nanjing Agricultural University, Nanjing 210095, China.
| | - Peihua You
- Portal Agri-Industries Co., Ltd., Xingdian Street, Pikou District, Nanjing 210095, China.
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Zeng XY, Ye YX, Shi XH, Wang ZY, Deng K, Zhang J, Lu ZH. Thermal-noise-limited higher-order mode locking of a reference cavity. Opt Lett 2018; 43:1690-1693. [PMID: 29652341 DOI: 10.1364/ol.43.001690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 03/06/2018] [Indexed: 06/08/2023]
Abstract
Higher-order mode locking has been proposed to reduce the thermal noise limit of reference cavities. By locking a laser to the HG02 mode of a 10-cm long all ultra-low expansion (ULE) cavity and measuring its performance with the three-cornered-hat method among three independently stabilized lasers, we demonstrate a thermal-noise-limited performance of a fractional frequency instability of 4.9×10-16. The results match the theoretical models with higher-order optical modes. The achieved laser instability improves the all ULE short cavity results to a new low level.
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47
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Ren C, Wang L, Fan Y, Jia R, Zhang G, Deng M, Deng K, Wang F. Scd1 Contributes to Lipid Droplets Formation in GMEC via Transcriptional Regulation of Tip47 and Adrp. EUR J LIPID SCI TECH 2017. [DOI: 10.1002/ejlt.201700238] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Caifang Ren
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University; Nanjing 210095 China
| | - Lizhong Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University; Nanjing 210095 China
| | - Yixuan Fan
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University; Nanjing 210095 China
| | - Ruoxin Jia
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University; Nanjing 210095 China
| | - Guomin Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University; Nanjing 210095 China
| | - Mingtian Deng
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University; Nanjing 210095 China
| | - Kaiping Deng
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University; Nanjing 210095 China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University; Nanjing 210095 China
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Zhou W, Wan Y, Guo R, Deng M, Deng K, Wang Z, Zhang Y, Wang F. Generation of beta-lactoglobulin knock-out goats using CRISPR/Cas9. PLoS One 2017; 12:e0186056. [PMID: 29016691 PMCID: PMC5634636 DOI: 10.1371/journal.pone.0186056] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 09/25/2017] [Indexed: 12/12/2022] Open
Abstract
Goat's milk, considered a substitute for cow's milk, has a high nutritional value. However, goat's milk contains various allergens, predominantly β-lactoglobulin (BLG). In this study, we employed the CRISPR/Cas9 system to target the BLG locus in goat fibroblasts for sgRNA optimization and generate BLG knock-out goats through co-injection of Cas9 mRNA and small guide RNAs (sgRNAs) into goat embryos at the one-cell stage. We firstly tested sgRNA editing efficiencies in goat fibroblast cells, and approximately 8.00%-9.09% of the cells were modified in single sgRNA-guided targeting experiment. Among the kids, the genome-targeting efficiencies of single sgRNA were 12.5% (10 ng/μL sg1) and 0% (10 ng/μL sg2) and efficiencies of dual sgRNAs were 25.0% (25 ng/μL sg2+sg3 group) and 28.6% (50 ng/μL sg2+sg3 group). Relative expression of BLG in BLG knock-out goat mammary glands significantly (p < 0.01) decreased as well as other milk protein coding genes, such as CSN1S1, CSN1S2, CSN2, CSN3 and LALBA (p < 0.05). As expected, BLG protein had been abolished in the milk of the BLG knock-out goat. In addition, most of the targeted kids were chimeric (3/4), and their various body tissues were edited simultaneously. Our study thus provides a basis for optimizing the quality of goat milk, which can be applied to biomedical and agricultural research.
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Affiliation(s)
- Wenjun Zhou
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, Jiangsu, PR, China
| | - Yongjie Wan
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, Jiangsu, PR, China
| | - Rihong Guo
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, Jiangsu, PR, China
| | - Mingtian Deng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, Jiangsu, PR, China
| | - Kaiping Deng
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, Jiangsu, PR, China
| | - Zhen Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, Jiangsu, PR, China
| | - Yanli Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, Jiangsu, PR, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, Jiangsu, PR, China
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Shazer A, Stewart D, Deng K, Tortorello M. Approaches toward Identification of Surrogates To Validate Antimicrobial Washes as Preventive Controls for Fresh-Cut Leafy Greens. J Food Prot 2017; 80:1600-1604. [PMID: 28853631 DOI: 10.4315/0362-028x.jfp-17-069] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In fresh-cut produce production, antimicrobials may be used during washing to control the risk of cross-contamination by microbial hazards. Surrogate microorganisms have long been used to validate processes, but none have been identified for validating the efficacy of antimicrobial washing of fresh-cut produce. The objective of this study was to develop procedures by which surrogates may be identified for use in validating the control of cross-contamination for fresh-cut lettuce operations. Four microbial characteristics, which may be important factors in cross-contamination events, were quantitatively evaluated in potential surrogate microorganisms for comparison to a reasonably foreseeable hazard, Escherichia coli O157:H7: sensitivity to chlorine in solution, sensitivity to chlorine on lettuce leaf surfaces, shedding from contaminated lettuce leaves into the water during washing, and cross-contamination from inoculated to uninoculated lettuce leaves during chorine washing. A procedure of practical quantitative experiments for comparing the characteristics reduced the original pool of 80 potential strains, which consisted of lactic acid bacteria, probiotics, and isolates obtained from lettuce enrichment cultures, to five strains: Lactobacillus plantarum, Pediococcus pentosaceus, probiotic 22C, and two lettuce enrichment isolates. These strains may be evaluated in additional studies involving comparisons to other reasonably foreseeable hazards and including other potential process variables that should be understood and controlled to prevent cross-contamination in fresh-cut lettuce operations.
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Affiliation(s)
- A Shazer
- 1 U.S. Food and Drug Administration, Division of Food Processing Science and Technology, Illinois Institute of Technology, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - D Stewart
- 1 U.S. Food and Drug Administration, Division of Food Processing Science and Technology, Illinois Institute of Technology, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - K Deng
- 2 Institute for Food Safety and Health, Illinois Institute of Technology, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
| | - M Tortorello
- 1 U.S. Food and Drug Administration, Division of Food Processing Science and Technology, Illinois Institute of Technology, 6502 South Archer Road, Bedford Park, Illinois 60501, USA
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Chen M, Deng K, Zeng WH, Zeng JJ, Zhong QS, Han ZM. [Minimally invasive tarsal sinus incision combined with manipulative reduction and internal fixation for calcaneal fractures of Sanders typeⅡ and Ⅲ]. Zhonghua Wai Ke Za Zhi 2017; 55:220-223. [PMID: 28241725 DOI: 10.3760/cma.j.issn.0529-5815.2017.03.011] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the method and curative effect of plate fixation or percutaneous screws for the treatment of calcaneal fractures of Sanders type Ⅱ and Ⅲ via a minimally invasive sinus tarsi incision combined with a variety of manipulative reduction methods. Methods: Twenty-one patients with closed calcaneal fractures treated in the Department of Orthopedics, the First Affiliated Hospital of Nanchang University from January 2014 to January 2016 were collected. There were 15 men and 6 women, with an average age of 39.3 years(from 25 to 63 years). According to the Sanders classification, 16 cases were type Ⅱ and 5 were type Ⅲ.All cases were treated with internal fixation with plate and percutaneous screws via the mini-open sinus tarsi approach following reduction of the posterior articular surface of the subtalar joint and calcaneal length, width and height.Statistical analysis was performed on calcaneal width and Böhler angle, Gissane angle preoperatively and postoperatively (3 days and 3 months). All data were analyzed by ANOVA, functional recovery was evaluated according to the Ankle and Hind-foot Score of American Orthopedic Foot and Ankle Society (AOFAS). Results: Twenty one patients were followed up for a mean duration of 13.4 months(6 to 24 months). All cases gained primary incision healing, without complications such as skin necrosis, wound infection, tenosynovitis of peroneus longus and brevis muscles, or fracture displacement and hardware failure.Bone union was achieved at an average of 10.5 weeks(9 to 11 weeks). No obvious malunion occurred by the last follow-up. Compared to preoperative, calcaneal width(F=25.62, 38.90) were significantly improved 3 days and 3 months after surgery, Böhler angle(F=440.24, 272.42) and Gissane angle(F=91.86, 43.74) were normal, the differences were statistically significant (all P<0.05). Compared to 3 days after surgery, calcaneal width, Böhler angle and Gissane angle kept normal 3 months after surgery, there were no statistically differences (F=0.26, 1.35, 2.60, all P>0.05). By the AOFAS scoring, 10 cases were rated as excellent, 7 were good and 4 were fair. Conclusions: Fixation with plate and percutaneous screws via the mini-open sinus tarsi approach is an effective treatment for Sanders types Ⅱ and Ⅲ calcaneal fractures, which with the advantages of small wound, simple operation, reliable fixation, no incision complication, especially suitable for elderly patients and the patients with severe injury of local soft tissue.
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Affiliation(s)
- M Chen
- Department of Orthopaedics, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
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