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Zhen C, Zhang G, Wang S, Wang J, Fang Y, Shang P. Electromagnetic fields regulate iron metabolism in living organisms: A review of effects and mechanism. Prog Biophys Mol Biol 2024; 188:43-54. [PMID: 38447710 DOI: 10.1016/j.pbiomolbio.2024.03.001] [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] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/07/2024] [Accepted: 03/03/2024] [Indexed: 03/08/2024]
Abstract
The emergence, evolution, and spread of life on Earth have all occurred in the geomagnetic field, and its extensive biological effects on living organisms have been documented. The charged characteristics of metal ions in biological fluids determine that they are affected by electromagnetic field forces, thus affecting life activities. Iron metabolism, as one of the important metal metabolic pathways, keeps iron absorption and excretion in a relatively balanced state, and this process is precisely and completely controlled. It is worth paying attention to how the iron metabolism process of living organisms is changed when exposed to electromagnetic fields. In this paper, the processes of iron absorption, storage and excretion in animals (mammals, fish, arthropods), plants and microorganisms exposed to electromagnetic field were summarized in detail as far as possible, in order to discover the regulation of iron metabolism by electromagnetic field. Studies and data on the effects of electromagnetic field exposure on iron metabolism in organisms show that exposure profiles vary widely across species and cell lines. This process involves a variety of factors, and the complexity of the results is not only related to the magnetic flux density/operating frequency/exposure time and the heterogeneity of the observed object. A systematic review of the biological regulation of iron metabolism by electromagnetic field exposure will not only contributes to a more comprehensive understanding of its biological effects and mechanism, but also is necessary to improve human awareness of the health related risks of electromagnetic field exposure.
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Affiliation(s)
- Chenxiao Zhen
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, China; Research & Development Institute of Northwestern Polytechnical University, Shenzhen, 518057, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Gejing Zhang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, China; Research & Development Institute of Northwestern Polytechnical University, Shenzhen, 518057, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Shenghang Wang
- Department of Spine Surgery, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital), Shenzhen, 518109, China
| | - Jianping Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, China; Research & Development Institute of Northwestern Polytechnical University, Shenzhen, 518057, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Yanwen Fang
- Heye Health Technology Co., Ltd, Huzhou, 313300, China
| | - Peng Shang
- Research & Development Institute of Northwestern Polytechnical University, Shenzhen, 518057, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an, 710072, China.
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Zhang G, Zhen C, Yang J, Wang J, Wang S, Fang Y, Shang P. Recent advances of nanoparticles on bone tissue engineering and bone cells. Nanoscale Adv 2024; 6:1957-1973. [PMID: 38633036 PMCID: PMC11019495 DOI: 10.1039/d3na00851g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 02/05/2024] [Indexed: 04/19/2024]
Abstract
With the development of biotechnology, biomaterials have been rapidly developed and shown great potential in bone regeneration therapy and bone tissue engineering. Nanoparticles have attracted the attention of researches and have applied in various fields especially in the biomedical field as the special physicochemical properties. Nanoparticles were found to regulate bone remodeling depending on their size, shape, composition, and charge. Therefore, in-depth research was necessary to provide the basic support to select the most suitable nanoparticles for bone relate diseases treatment. This article reviews the current development of nanoparticles in bone tissue engineering, focusing on drug delivery, gene delivery, and cell labeling. In addition, the research progress on the interaction of nanoparticles with bone cells, focusing on osteoblasts, osteoclasts, and bone marrow mesenchymal stem cells, and the underlying mechanism were also reviewed. Finally, the current challenges and future research directions are discussed. Thus, detailed study of nanoparticles may reveal new therapeutic strategies to improve the effectiveness of bone regeneration therapy or other bone diseases.
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Affiliation(s)
- Gejing Zhang
- School of Life Sciences, Northwestern Polytechnical University Xi'an Shaanxi 710072 China
- Research & Development Institute of Northwestern Polytechnical University Shenzhen 518057 China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University Xi'an Shaanxi 710072 China
| | - Chenxiao Zhen
- School of Life Sciences, Northwestern Polytechnical University Xi'an Shaanxi 710072 China
- Research & Development Institute of Northwestern Polytechnical University Shenzhen 518057 China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University Xi'an Shaanxi 710072 China
| | - Jiancheng Yang
- Department of Osteoporosis, Honghui Hospital, Xi'an Jiaotong University Xi'an 710054 China
| | - Jianping Wang
- School of Life Sciences, Northwestern Polytechnical University Xi'an Shaanxi 710072 China
- Research & Development Institute of Northwestern Polytechnical University Shenzhen 518057 China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University Xi'an Shaanxi 710072 China
| | - Shenghang Wang
- School of Life Sciences, Northwestern Polytechnical University Xi'an Shaanxi 710072 China
- Department of Spine Surgery, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital) Shenzhen 518109 China
| | - Yanwen Fang
- Heye Health Technology Co., Ltd Huzhou 313300 China
| | - Peng Shang
- Research & Development Institute of Northwestern Polytechnical University Shenzhen 518057 China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University Xi'an Shaanxi 710072 China
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Shang P, Liu Y, Ren J, Liu Q, Song H, Jia J, Liu Q. Overexpression of miR-532-5p restrains oxidative stress response of chondrocytes in nontraumatic osteonecrosis of the femoral head by inhibiting ABL1. Open Med (Wars) 2024; 19:20240943. [PMID: 38584839 PMCID: PMC10997031 DOI: 10.1515/med-2024-0943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 04/09/2024] Open
Abstract
This study is to probe into the meaning of serum miR-532-5p in nontraumatic osteonecrosis of the femoral head (ONFH), and a molecular mechanism of miR-532-5p in the development of nontraumatic ONFH. This study enrolled 96 patients diagnosed with nontraumatic ONFH and 96 patients with femoral neck fracture. The levels of miR-532-5p, ABL1, MMP-3, MMP-13, and cleaved-caspase3 were determined. Radiographic progression was assessed by ARCO staging system. Visual analog scale (VAS) and Harris hip score (HHS) were employed for evaluation of the symptomatic severity of nontraumatic ONFH. Cell viability and apoptosis in chondrocytes isolated from clinical samples were investigated with CCK-8 and flow cytometry. The levels of lactic dehydrogenase (LDH), superoxide dismutase (SOD), and malondialdehyde (MDA), mitochondrial membrane potential (ΔΨm), and reactive oxygen species (ROS) were determined. miR-532-5p was downregulated in tissues and serum of patients with nontraumatic ONFH, negatively related with ARCO staging and VAS, and positively correlated with HHS. Cell apoptosis, LDH, MDA, and ROS strengthened, while cell viability, ΔΨm, and SOD reduced in chondrocytes of nontraumatic ONFH patients. ABL1 was upregulated in cartilage tissues from nontraumatic ONFH patients. miR-532-5p targeted ABL1, and overexpressed miR-532-5p alleviated nontraumatic ONFH-induced oxidative stress damage of chondrocytes by restraining ABL1. miR-532-5p ameliorated oxidative stress injury in nontraumatic ONFH by inhibiting ABL1.
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Affiliation(s)
- Peng Shang
- Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Shanxi, 030032, P.R. China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P.R. China
| | - Ying Liu
- Department of Oncology, Second Hospital of Shanxi Medial University, Taiyuan, Shanxi, 030001, P.R. China
| | - Jie Ren
- Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Shanxi, 030032, P.R. China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P.R. China
| | - Qingqing Liu
- Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Shanxi, 030032, P.R. China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P.R. China
| | - Haobo Song
- Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Shanxi, 030032, P.R. China
| | - Junqing Jia
- Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, No. 99, Longcheng Street, Taiyuan, Shanxi, 030032, P.R. China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Avenue, Wuhan, Hubei, 430030, P.R. China
| | - Qiang Liu
- Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, No. 99, Longcheng Street, Taiyuan, Shanxi, 030032, P.R. China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Avenue, Wuhan, Hubei, 430030, P.R. China
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Che J, Chen X, Ren W, Shang P. PTH 1-34 reduced apoptosis of MLO-Y4 osteocyte-like cells by activating autophagy and inhibiting ER stress under RPM conditions. Eur J Pharmacol 2024; 967:176364. [PMID: 38316249 DOI: 10.1016/j.ejphar.2024.176364] [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: 08/08/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/07/2024]
Abstract
Osteocytes, as mechanosensitive cells residing within bone tissue, hold a pivotal role in averting the occurrence and progression of osteoporosis. The apoptosis of osteocytes induced by unloading is one of the contributing factors to osteoporosis, although the underlying molecular mechanisms have not been fully elucidated. PTH 1-34 is known to promote bone formation and inhibit bone loss by targeting osteoblasts and osteocytes. However, it is not known whether PTH 1-34 can inhibit osteocyte apoptosis under unloading conditions and the molecular mechanisms involved. In this study, we employed a Random Positioning Machine (RPM) to emulate unloading conditions and cultured MLO-Y4 osteocyte-like cells, in order to unravel the mechanisms through which PTH 1-34 constrains osteocyte apoptosis amidst unloading circumstances. Our findings revealed that PTH 1-34 activated autophagy while suppressing endoplasmic reticulum stress by curtailing the generation of reactive oxygen species (ROS) in MLO-Y4 osteocyte-like cells during unloading conditions. By shedding light on the osteoporosis triggered by skeletal unloading, this study contributes vital insights that may pave the way for the development of pharmacological interventions.
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Affiliation(s)
- Jingmin Che
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China; Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, Guangdong, China; Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, Shaanxi, China.
| | - Xin Chen
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, Guangdong, China; School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China; Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Weihao Ren
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, Guangdong, China; School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China; Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Peng Shang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, Guangdong, China; Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, Shaanxi, China.
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Yu C, Shang P, Guo Y, Zhang Z. In Situ Heterodyne-Detected Second-Harmonic Generation Study of the Influence of Cholesterol on Dye Molecule Adsorption on Lipid Membrane. J Phys Chem B 2024; 128:1892-1899. [PMID: 38354410 DOI: 10.1021/acs.jpcb.3c07130] [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: 02/16/2024]
Abstract
Cholesterol plays an essential role in regulating the functionality of biomembranes. This study employed in situ second-harmonic generation (SHG) to investigate the adsorption behavior of the dye molecule 4-(4-(diethylamino)styryl)-N-methyl-pyridinium iodide (D289) on a biomimic membrane composed of 1,2-dipalmitoyl-sn-glycero-3-phospho-(1'-rac-glycerol) (sodium salt) (DPPG) and cholesterol. The time-dependent polarization SHG intensity exhibited an initial rapid increase, followed by a subsequent decline. The initial increased SHG intensity is responsible for the electrostatic interaction-driven adsorption of D289 onto the membrane, while the decrease in the SHG signal results from the broadening of the orientation distribution within the membrane. Heterodyne-detected SHG (HD-SHG) measurements demonstrated that the adsorption of dye molecules influenced the phase of the induced electric field. The interfacial potential Φ(0) as a function of time was measured, and we found that even after reaching a stable Stern layer state, the diffusion layer continued to exhibit a dynamic change. This study offers a comprehensive understanding of the influence of cholesterol on adsorption, reorientation dynamics, and dynamic changes in the reorientation of water in the diffusion layer.
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Affiliation(s)
- Changhui Yu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy Sciences, Beijing 100049, China
| | - Peng Shang
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy Sciences, Beijing 100049, China
| | - Yuan Guo
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy Sciences, Beijing 100049, China
| | - Zhen Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy Sciences, Beijing 100049, China
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Chen B, Liu X, Wu S, Hou J, Shang P, Chamba Y, Mehmood K, Fouad D, Li Y, Zhang H. Inhalation of ammonia promotes apoptosis and induces autophagy in hepatocytes via Bax/BCl-2 and m-TOR/ATG5/LC-3bII axes. Sci Total Environ 2024; 912:169036. [PMID: 38061639 DOI: 10.1016/j.scitotenv.2023.169036] [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] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/20/2023] [Accepted: 11/30/2023] [Indexed: 01/18/2024]
Abstract
Ammonia (NH3) is an irritating gas and atmospheric pollutant that endangers the health of humans and animals by stimulating respiratory tract's mucosa and causing liver damage. However, physiological role of ammonia gas in hepatotoxicity remains unclear. To investigate the hepatotoxic effects of inhaled ammonia gas, experiments were conducted using mouse model exposed to 100 ppm of ammonia gas for 21 days. The exposed mice exhibited signs of depression, emaciation, and reduced growth. This study revealed that inhalation of ammonia led to significant decrease in water (P < 0.0001) and food intake (P < 0.05), resulting in slower growth. Histopathological analysis showed that ammonia stress alters the microstructure of the liver by enlarging the gap between hepatic lobule and fibrosis. Moreover, ammonia-induced stress significantly reduces the expression of the anti-apoptotic protein BCl-2 (P < 0.001), while elevates the mRNA expression of the pro-apoptotic gene Bax (P < 0.001). Furthermore, ammonia inhalation significantly increases the protein expression of LC-3bII (P < 0.05) and the mRNA expression of autophagy-related gene 5 (ATG5) (P < 0.05) and p62 (P < 0.05) while remarkably decreases the mRNA expression of mammalian target of rapamycin (m-TOR) (P < 0.05). In conclusion, this study demonstrates that inhalation of ammonia gas causes liver damage and suggests autophagy happening via m-TOR/p62/LC-3bII and pro-apoptosis effect mediated by Bax/BCl-2 in the liver damage caused by ammonia inhalation. Our study provides a new perspective on ammonia-induced hepatotoxicity.
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Affiliation(s)
- Bohan Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoqing Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Shouyan Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Junhong Hou
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Peng Shang
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Linzhi 860000, China
| | - Yangzom Chamba
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Linzhi 860000, China
| | - Khalid Mehmood
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Dalia Fouad
- Department of Zoology, College of Science, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Hui Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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Wang Z, Zhang E, Tang Y, Wu J, Muhammad S, Shang P, Zong C, Rong K, Ma J. Comparative analysis of the intestinal microbiota of black-necked cranes ( Grus nigricollis) in different wintering areas. Front Cell Infect Microbiol 2024; 13:1302785. [PMID: 38317791 PMCID: PMC10840423 DOI: 10.3389/fcimb.2023.1302785] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/13/2023] [Indexed: 02/07/2024] Open
Abstract
Fecal microbiota is essential for host health because it increases digestive effectiveness. The crane species Grus nigricollis (G. nigricollis) is considered to be near threatened. The fecal microbial composition of crane is less understood, particularly in the Tibet, China. This study was performed to investigate the differences in fecal microbial composition and diversity of crane in different wintering areas using third-generation single-molecule real-time sequencing technology in the Tibet, China. According to the findings, 20 samples were used to generate 936 bacterial amplicon sequence variants (ASVs) and 1,800 fungal ASVs, only 4 bacterial ASVs and 20 fungal ASVs were shared in four distinct locations. Firmicutes were the dominant bacterial phylum in all samples, and Ascomycota and Basidiomycota were the dominant fungal phylum. At the genus level, Lactobacillus was the dominant genus in Linzhi City (LZ), Shannan City (SN), and Lasa City (LS), whereas Megamonas was the dominant genus in Rikaze City (RKZ). Naganishia and Mycosphaerella were the dominant fungal genera in SN and RKZ. Mycosphaerella and Tausonia were the dominant fungal genera in LZ. Naganishia and Fusarium were the dominant fungal genera in LS. And the fecal microbial composition varied between the four groups, as shown by the underweighted pair-group method with arithmetic means and principal coordinates analysis. This study offers a theoretical basis for understanding the fecal microbial composition of crane.
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Affiliation(s)
- Zhongbin Wang
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
- Department of Resources and Environment, Tibet Agricultural and Animal Husbandry College, Linzhi, Tibet, China
| | - Erhao Zhang
- Department of Resources and Environment, Tibet Agricultural and Animal Husbandry College, Linzhi, Tibet, China
| | - Ying Tang
- Department of Resources and Environment, Tibet Agricultural and Animal Husbandry College, Linzhi, Tibet, China
| | - Jiujiu Wu
- Department of Resources and Environment, Tibet Agricultural and Animal Husbandry College, Linzhi, Tibet, China
| | - Suliman Muhammad
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Peng Shang
- Department of Resources and Environment, Tibet Agricultural and Animal Husbandry College, Linzhi, Tibet, China
| | - Cheng Zong
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Ke Rong
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Jianzhang Ma
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
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Zhang L, Zhang S, Yuan M, Zhan F, Song M, Shang P, Yang F, Li X, Qiao R, Han X, Li X, Fang M, Wang K. Genome-Wide Association Studies and Runs of Homozygosity to Identify Reproduction-Related Genes in Yorkshire Pig Population. Genes (Basel) 2023; 14:2133. [PMID: 38136955 PMCID: PMC10742578 DOI: 10.3390/genes14122133] [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: 10/11/2023] [Revised: 11/10/2023] [Accepted: 11/19/2023] [Indexed: 12/24/2023] Open
Abstract
Reproductive traits hold considerable economic importance in pig breeding and production. However, candidate genes underpinning the reproductive traits are still poorly identified. In the present study, we executed a genome-wide association study (GWAS) and runs of homozygosity (ROH) analysis using the PorcineSNP50 BeadChip array for 585 Yorkshire pigs. Results from the GWAS identified two genome-wide significant and eighteen suggestive significant single nucleotide polymorphisms (SNPs) associated with seven reproductive traits. Furthermore, we identified candidate genes, including ELMO1, AOAH, INSIG2, NUP205, LYPLAL1, RPL34, LIPH, RNF7, GRK7, ETV5, FYN, and SLC30A5, which were chosen due to adjoining significant SNPs and their functions in immunity, fertilization, embryonic development, and sperm quality. Several genes were found in ROH islands associated with spermatozoa, development of the fetus, mature eggs, and litter size, including INSL6, TAF4B, E2F7, RTL1, CDKN1C, and GDF9. This study will provide insight into the genetic basis for pig reproductive traits, facilitating reproduction improvement using the marker-based selection methods.
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Affiliation(s)
- Lige Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Songyuan Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Meng Yuan
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Fengting Zhan
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Mingkun Song
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Peng Shang
- Animal Science College, Tibet Agriculture and Animal Husbandry University, Linzhi 860000, China;
| | - Feng Yang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Xiuling Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Ruimin Qiao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Xuelei Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Xinjian Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
| | - Meiying Fang
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Kejun Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (L.Z.); (S.Z.); (M.Y.); (F.Z.); (M.S.); (F.Y.); (X.L.); (R.Q.); (X.H.); (X.L.)
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9
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Wang S, Liu Y, Lou C, Cai C, Ren W, Liu J, Gong M, Shang P, Zhang H. Moderate static magnetic field promotes fracture healing and regulates iron metabolism in mice. Biomed Eng Online 2023; 22:107. [PMID: 37968671 PMCID: PMC10647027 DOI: 10.1186/s12938-023-01170-3] [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: 06/27/2023] [Accepted: 10/31/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Fractures are the most common orthopedic diseases. It is known that static magnetic fields (SMFs) can contribute to the maintenance of bone health. However, the effect and mechanism of SMFs on fracture is still unclear. This study is aim to investigate the effect of moderate static magnetic fields (MMFs) on bone structure and metabolism during fracture healing. METHODS Eight-week-old male C57BL/6J mice were subjected to a unilateral open transverse tibial fracture, and following treatment under geomagnetic field (GMF) or MMF. The micro-computed tomography (Micro-CT) and three-point bending were employed to evaluate the microarchitecture and mechanical properties. Endochondral ossification and bone remodeling were evaluated by bone histomorphometric and serum biochemical assay. In addition, the atomic absorption spectroscopy and ELISA were utilized to examine the influence of MMF exposure on iron metabolism in mice. RESULTS MMF exposure increased bone mineral density (BMD), bone volume per tissue volume (BV/TV), mechanical properties, and proportion of mineralized bone matrix of the callus during fracture healing. MMF exposure reduced the proportion of cartilage in the callus area during fracture healing. Meanwhile, MMF exposure increased the number of osteoblasts in callus on the 14th day, and reduced the number of osteoclasts on the 28th day of fracture healing. Furthermore, MMF exposure increased PINP and OCN levels, and reduced the TRAP-5b and β-CTX levels in serum. It was also observed that MMF exposure reduced the iron content in the liver and callus, as well as serum ferritin levels while elevating the serum hepcidin concentration. CONCLUSIONS MMF exposure could accelerate fracture healing via promote the endochondral ossification and bone formation while regulating systemic iron metabolism during fracture healing. This study suggests that MMF may have the potential to become a form of physical therapy for fractures.
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Affiliation(s)
- Shenghang Wang
- Department of Spine Surgery, People's Hospital of Longhua, Affiliated Hospital of Southern Medical University, No.38 Jinglong Construction Road, Shenzhen, China
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Yuetong Liu
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, No. 45, Gaoxin South 9th Road, Nanshan District, Shenzhen, 518057, China
| | - Chenge Lou
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, No. 45, Gaoxin South 9th Road, Nanshan District, Shenzhen, 518057, China
| | - Chao Cai
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, No. 45, Gaoxin South 9th Road, Nanshan District, Shenzhen, 518057, China
| | - Weihao Ren
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, No. 45, Gaoxin South 9th Road, Nanshan District, Shenzhen, 518057, China
| | - Junyu Liu
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, No. 45, Gaoxin South 9th Road, Nanshan District, Shenzhen, 518057, China
| | - Ming Gong
- Department of Spine Surgery, People's Hospital of Longhua, Affiliated Hospital of Southern Medical University, No.38 Jinglong Construction Road, Shenzhen, China
| | - Peng Shang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, No. 45, Gaoxin South 9th Road, Nanshan District, Shenzhen, 518057, China.
| | - Hao Zhang
- Department of Spine Surgery, People's Hospital of Longhua, Affiliated Hospital of Southern Medical University, No.38 Jinglong Construction Road, Shenzhen, China.
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10
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Shang P, Ma B, Hou G, Zhang Y, Cui L, Song W, Liu Y. A novel artificial vertebral implant with Gyroid porous structures for reducing the subsidence and mechanical failure rate after vertebral body replacement. J Orthop Surg Res 2023; 18:828. [PMID: 37924130 PMCID: PMC10623881 DOI: 10.1186/s13018-023-04310-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/22/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Prosthesis subsidence and mechanical failure were considered significant threats after vertebral body replacement during the long-term follow-up. Therefore, improving and optimizing the structure of vertebral substitutes for exceptional performance has become a pivotal challenge in spinal reconstruction. METHODS The study aimed to develop a novel artificial vertebral implant (AVI) with triply periodic minimal surface Gyroid porous structures to enhance the safety and stability of prostheses. The biomechanical performance of AVIs under different loading conditions was analyzed using the finite element method. These implants were fabricated using selective laser melting technology and evaluated through static compression and subsidence experiments. RESULTS The results demonstrated that the peak stress in the Gyroid porous AVI was consistently lower than that in the traditional porous AVI under all loading conditions, with a maximum reduction of 73.4%. Additionally, it effectively reduced peak stress at the bone-implant interface of the vertebrae. Static compression experiments demonstrated that the Gyroid porous AVI was about 1.63 times to traditional porous AVI in terms of the maximum compression load, indicating that Gyroid porous AVI could meet the safety requirement. Furthermore, static subsidence experiments revealed that the subsidence tendency of Gyroid porous AVI in polyurethane foam (simulated cancellous bone) was approximately 15.7% lower than that of traditional porous AVI. CONCLUSIONS The Gyroid porous AVI exhibited higher compressive strength and lower subsidence tendency than the strut-based traditional porous AVI, indicating it may be a promising substitute for spinal reconstruction.
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Affiliation(s)
- Peng Shang
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.
| | - Benyuan Ma
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, China
| | - Guanghui Hou
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, China
| | - Yihai Zhang
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, China
| | - Lunxu Cui
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, China
| | - Wanzhen Song
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, China
| | - Yancheng Liu
- Department of Bone and Soft Tissue Oncology, Tianjin Hospital, Tianjin, China.
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11
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Wang X, Zhu J, Zuo Y, Niu S, Yang P, Shang P, Niu J. Study on fast algorithm of neutron radiation field under complex terrain scenario based on ensemble learning approach. J Environ Radioact 2023; 268-269:107244. [PMID: 37515862 DOI: 10.1016/j.jenvrad.2023.107244] [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] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 07/08/2023] [Accepted: 07/16/2023] [Indexed: 07/31/2023]
Abstract
In this study a prediction algorithm has been proposed to rapidly figure out neutron radiation field for nuclear explosion under complex terrain scenario based on ensemble learning approach, which could be an impossibility for traditional radiation transport simulation methodology. By analyzing the influence of complex surface morphology on the radiation field, a series of characteristic parameters which could characterize the topographic features and their influence on the transport of neutrons and secondary gamma in the atmosphere have been extracted with the application of DEM, and the sample sethas been constructedwith the MC simulation results of terrain samples generated by random algorithm, to be used to train the prediction model for the neutron radiation field of nuclear explosion. In order to verify the actual prediction performance of the model, the study has implemented the prediction for the neutron flux, neutron tissue dose and secondary gamma tissue dose under the authentic urban and mountainous terrain scenarios, and analyzed and compared the results from fast prediction and MC simulation in different evaluation dimensions. The comparisons suggest that both of the results are in good agreement with each other, demonstrating that the fast prediction models preliminarily possess the engineering application value. In addition, a feasible approach to improve the generalization performance of the prediction model for various radiation scenarios has been proposed, which could be deemed as a reference for further research.
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Affiliation(s)
- Xuedong Wang
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Jinhui Zhu
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China.
| | - Yinghong Zuo
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Shengli Niu
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Peng Yang
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Peng Shang
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
| | - Jinlin Niu
- Northwest Institute of Nuclear Technology, Xi'an, 710024, China
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12
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Cheng L, Li X, Tian Y, Wang Q, Li X, An F, Luo Z, Shang P, Liu Z, Huang Q. Mechanisms of cooking methods on flavor formation of Tibetan pork. Food Chem X 2023; 19:100873. [PMID: 37745033 PMCID: PMC10511784 DOI: 10.1016/j.fochx.2023.100873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/29/2023] [Accepted: 09/08/2023] [Indexed: 09/26/2023] Open
Abstract
To obtain flavor-enriched Tibetan pork products, the impact of oxidation degree on the flavor of Tibetan pork with different cooking methods (microwaving, frying, boiling, and air frying) was evaluated using an E-nose, an E-tongue, GC-MS, and LC-MS. The level of oxidation was lower in M and F and higher in B and AF groups. Hexanal, pentanal, benzaldehyde, 1-octen-3-ol, and 3-hydroxy-2-butanone were identified as significant contributors to cooked samples. The volatile abundance of microwaved, fried, boiled, and air-fried pork was 1.61, 1.22, 1.47, and 1.69 times higher than raw, respectively. Leucine and threonine were detected to be the highest in the AF group, which were 1.30 and 3.60 times greater than RAW, respectively. In summary, oxidation of lipids and proteins caused by cooking treatments was the main source of flavor in cooked Tibetan pork. Air-frying treatment could greatly promote the production of flavor compounds and give unique flavor to Tibetan pork.
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Affiliation(s)
- Lujie Cheng
- School of Public Health, Guizhou Province Engineering Research Center of Health Food Innovative Manufacturing, the Key Laboratory of Environmental Pollution Monitoring and Disease Control of Ministry of Education, Guizhou Medical University, Guiyang 550025, China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Xin Li
- School of Public Health, Guizhou Province Engineering Research Center of Health Food Innovative Manufacturing, the Key Laboratory of Environmental Pollution Monitoring and Disease Control of Ministry of Education, Guizhou Medical University, Guiyang 550025, China
| | - Yuting Tian
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Qia Wang
- School of Public Health, Guizhou Province Engineering Research Center of Health Food Innovative Manufacturing, the Key Laboratory of Environmental Pollution Monitoring and Disease Control of Ministry of Education, Guizhou Medical University, Guiyang 550025, China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Xiefei Li
- School of Public Health, Guizhou Province Engineering Research Center of Health Food Innovative Manufacturing, the Key Laboratory of Environmental Pollution Monitoring and Disease Control of Ministry of Education, Guizhou Medical University, Guiyang 550025, China
| | - Fengping An
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Zhang Luo
- College of Food Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet Autonomous Region 860000, China
| | - Peng Shang
- College of Food Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet Autonomous Region 860000, China
| | - Zhendong Liu
- College of Food Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet Autonomous Region 860000, China
| | - Qun Huang
- School of Public Health, Guizhou Province Engineering Research Center of Health Food Innovative Manufacturing, the Key Laboratory of Environmental Pollution Monitoring and Disease Control of Ministry of Education, Guizhou Medical University, Guiyang 550025, China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
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Yang J, Shang P, Zhang B, Wang J, Du Z, Wang S, Xing J, Zhang H. Genomic and metabonomic methods reveal the probiotic functions of swine-derived Ligilactobacillus salivarius. BMC Microbiol 2023; 23:242. [PMID: 37648978 PMCID: PMC10466738 DOI: 10.1186/s12866-023-02993-9] [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: 03/07/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023] Open
Abstract
BACKGROUND As substitutes for antibiotics, probiotic bacteria protect against digestive infections caused by pathogenic bacteria. Ligilactobacillus salivarius is a species of native lactobacillus found in both humans and animals. Herein, a swine-derived Ligilactobacillus salivarius was isolated and shown to colonize the ileal mucous membrane, thereby promoting nutritional digestion, absorption, and immunity. To evaluate its probiotic role, the entire genome was sequenced, the genetic information was annotated, and the metabolic information was analyzed. RESULTS The phylogenetic relationship indicated that the bacteria was closer to L. salivarius MT573555.1 and MT585431.1. Functional genes included transporters, membrane proteins, enzymes, heavy metal resistance proteins, and putative proteins; metabolism-related genes were the most abundant. The six types of metabolic pathways secreted by L. salivarius were mainly composed of secretory transmembrane proteins and peptides. The secretory proteins of L. salivarius were digestive enzymes, functional proteins that regulate apoptosis, antibodies, and hormones. Non-targeted metabolomic analysis of L. salivarius metabolites suggested that ceramide, pyrrolidone- 5- carboxylic acid, N2-acetyl-L-ornithine, 2-ethyl-2-hydroxybutyric acid, N-lactoyl-phenylalanine, and 12 others were involved in antioxidation, repair of the cellular membrane, anticonvulsant, hypnosis, and appetite inhibition. Metabolites of clavaminic acid, antibiotic X14889C, and five other types of bacteriocins were identified, namely phenyllactic acid, janthitrem G, 13-demethyl tacrolimus, medinoside E, and tertonasin. The adherence and antioxidation of L. salivarius were also predicted. No virulence genes were found. CONCLUSION The main probiotic properties of L. salivarius were identified using genomic, metabonomic, and biochemical assays, which are beneficial for porcine feeding. Our results provided deeper insights into the probiotic effects of L. salivarius.
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Affiliation(s)
- Jiajun Yang
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong, 212400, Jiangsu, China
- Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Peng Shang
- College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi, 860000, China
| | - Bo Zhang
- Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jing Wang
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong, 212400, Jiangsu, China
| | - Zhenyu Du
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong, 212400, Jiangsu, China
| | - Shanfeng Wang
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong, 212400, Jiangsu, China
| | - Jun Xing
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong, 212400, Jiangsu, China
| | - Hao Zhang
- Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
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Zhang B, Li X, Zhou X, Lou C, Wang S, Lv H, Zhang G, Fang Y, Yin D, Shang P. Magneto-mechanical stimulation modulates osteocyte fate via the ECM-integrin-CSK axis and wnt pathway. iScience 2023; 26:107365. [PMID: 37554458 PMCID: PMC10405320 DOI: 10.1016/j.isci.2023.107365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 04/19/2023] [Accepted: 07/10/2023] [Indexed: 08/10/2023] Open
Abstract
Osteocytes are the mechano-sensors of bones. Large gradient high-static magnetic fields (LG-HMFs) produce stable, high-precision, and non-attenuation mechanical forces. We discovered that magnetic forces opposite to gravity inhibited MLO-Y4 osteocyte proliferation and viability by inducing structural damage and apoptosis. In contrast, magnetic force loading in the same direction as that of gravity promoted the proliferation and inhibited apoptosis of MLO-Y4 osteocytes. Differentially expressed gene (DEG) analysis after magnetic force stimulation indicated that the ECM-integrin-CSK axis responded most significantly to mechanical signals. Wisp2 was the most significant DEG between the 12 T upward and downward groups, showing the highest correlation with the Wnt pathway according to the STRING protein interaction database. Explaining the cellular and molecular mechanisms by which mechanical stimuli influence bone remodeling is currently the focus of osteocyte-related research. Our findings provide insights into the effects of LG-HMFs on bone cells, which have further implications in clinical practice.
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Affiliation(s)
- Bin Zhang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- School of Life Science, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Xianglin Li
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- School of Life Science, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Xiaojie Zhou
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - ChenGe Lou
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- School of Life Science, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Shenghang Wang
- School of Life Science, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
- Department of Spine Surgery, Affiliated Longhua People’s Hospital, Southern Medical University, Shenzhen 518057, China
| | - Huanhuan Lv
- School of Life Science, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Gejing Zhang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- School of Life Science, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yanwen Fang
- Heye Health Technology Co., Ltd, Huzhou 313300, China
| | - Dachuan Yin
- School of Life Science, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Peng Shang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi’an 710072, China
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15
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Zhao Z, Shang P, Mohanraju P, Geijsen N. Prime editing: advances and therapeutic applications. Trends Biotechnol 2023; 41:1000-1012. [PMID: 37002157 DOI: 10.1016/j.tibtech.2023.03.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [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: 10/24/2022] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 04/01/2023]
Abstract
Clustered regularly interspaced short palindromic repeats-associated protein 9 (CRISPR-Cas)-mediated genome editing has revolutionized biomedical research and will likely change the therapeutic and diagnostic landscape. However, CRISPR-Cas9, which edits DNA by activating DNA double-strand break (DSB) repair pathways, is not always sufficient for gene therapy applications where precise mutation repair is required. Prime editing, the latest revolution in genome-editing technologies, can achieve any possible base substitution, insertion, or deletion without the requirement for DSBs. However, prime editing is still in its infancy, and further development is needed to improve editing efficiency and delivery strategies for therapeutic applications. We summarize latest developments in the optimization of prime editor (PE) variants with improved editing efficiency and precision. Moreover, we highlight some potential therapeutic applications.
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Affiliation(s)
- Zhihan Zhao
- Leiden University Medical Center, Einthovenweg 20, 2300 RC Leiden, The Netherlands; The Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), Leiden node, The Netherlands
| | - Peng Shang
- Leiden University Medical Center, Einthovenweg 20, 2300 RC Leiden, The Netherlands; The Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), Leiden node, The Netherlands
| | - Prarthana Mohanraju
- Leiden University Medical Center, Einthovenweg 20, 2300 RC Leiden, The Netherlands; The Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), Leiden node, The Netherlands.
| | - Niels Geijsen
- Leiden University Medical Center, Einthovenweg 20, 2300 RC Leiden, The Netherlands; The Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), Leiden node, The Netherlands.
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Shang P, Zhang H, Liu X, Yang Z, Liu B, Liu T. Cutting-Force Modeling Study on Vibration-Assisted Micro-Milling of Bone Materials. Micromachines (Basel) 2023; 14:1422. [PMID: 37512733 PMCID: PMC10384012 DOI: 10.3390/mi14071422] [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] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
This study aims to enhance surgical safety and facilitate patient recovery through the investigation of vibration-assisted micro-milling technology for bone-material removal. The primary objective is to reduce cutting force and improve surface quality. Initially, a predictive model is developed to estimate the cutting force during two-dimensional (2D) vibration-assisted micro-milling of bone material. This model takes into account the anisotropic structural characteristics of bone material and the kinematics of the milling tool. Subsequently, an experimental platform is established to validate the accuracy of the cutting-force model for bone material. Micro-milling experiments are conducted on bone materials, with variations in cutting direction, amplitude, and frequency, to assess their impact on cutting force. The experimental results demonstrate that selecting appropriate machining parameters can effectively minimize cutting force in 2D vibration-assisted micro-milling of bone materials. The insights gained from this study provide valuable guidance for determining cutting parameters in vibration-assisted micro-milling of bone materials.
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Affiliation(s)
- Peng Shang
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300400, China
| | - Huaiqing Zhang
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300400, China
| | - Xiaopeng Liu
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300400, China
| | - Zhuang Yang
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300400, China
| | - Bingfeng Liu
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300400, China
| | - Teng Liu
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300400, China
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Su D, Hu Z, Wu J, Shang P, Luo Z. Review of adaptive control for stroke lower limb exoskeleton rehabilitation robot based on motion intention recognition. Front Neurorobot 2023; 17:1186175. [PMID: 37465413 PMCID: PMC10350518 DOI: 10.3389/fnbot.2023.1186175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/13/2023] [Indexed: 07/20/2023] Open
Abstract
Stroke is a significant cause of disability worldwide, and stroke survivors often experience severe motor impairments. Lower limb rehabilitation exoskeleton robots provide support and balance for stroke survivors and assist them in performing rehabilitation training tasks, which can effectively improve their quality of life during the later stages of stroke recovery. Lower limb rehabilitation exoskeleton robots have become a hot topic in rehabilitation therapy research. This review introduces traditional rehabilitation assessment methods, explores the possibility of lower limb exoskeleton robots combining sensors and electrophysiological signals to assess stroke survivors' rehabilitation objectively, summarizes standard human-robot coupling models of lower limb rehabilitation exoskeleton robots in recent years, and critically introduces adaptive control models based on motion intent recognition for lower limb exoskeleton robots. This provides new design ideas for the future combination of lower limb rehabilitation exoskeleton robots with rehabilitation assessment, motion assistance, rehabilitation treatment, and adaptive control, making the rehabilitation assessment process more objective and addressing the shortage of rehabilitation therapists to some extent. Finally, the article discusses the current limitations of adaptive control of lower limb rehabilitation exoskeleton robots for stroke survivors and proposes new research directions.
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Affiliation(s)
- Dongnan Su
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Zhigang Hu
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China
- Henan Intelligent Rehabilitation Medical Robot Engineering Research Center, Henan University of Science and Technology, Luoyang, China
| | - Jipeng Wu
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Peng Shang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Zhaohui Luo
- State-Owned Changhong Machinery Factory, Guilin, China
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Lv H, Wang Y, Zhen C, Liu J, Chen X, Zhang G, Yao W, Guo H, Wei Y, Wang S, Yang J, Shang P. A static magnetic field improves bone quality and balances the function of bone cells with regulation on iron metabolism and redox status in type 1 diabetes. FASEB J 2023; 37:e22985. [PMID: 37249350 DOI: 10.1096/fj.202202131rr] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/26/2023] [Accepted: 05/09/2023] [Indexed: 05/31/2023]
Abstract
Osteoporosis is one of the chronic complications of type 1 diabetes with high risk of fracture. The prevention of diabetic osteoporosis is of particular importance. Static magnetic fields (SMFs) exhibit advantages on improvement of diabetic complications. The biological effects and mechanism of SMFs on bone health of type 1 diabetic mice and functions of bone cells under high glucose have not been clearly clarified. In animal experiment, six-week-old male C57BL/6J mice were induced to type 1 diabetes and exposed to SMF of 0.4-0.7 T for 4 h/day lasting for 6 weeks. Bone mass, biomechanical strength, microarchitecture and metabolism were determined by DXA, three-point bending assay, micro-CT, histochemical and biochemical methods. Exposure to SMF increased BMD and BMC of femur, improved biomechanical strength with higher ultimate stress, stiffness and elastic modulus, and ameliorated the impaired bone microarchitecture in type 1 diabetic mice by decreasing Tb.Pf, Ct.Po and increasing Ct.Th. SMF enhanced bone turnover by increasing the level of markers for bone formation (OCN and Collagen I) as well as bone resorption (CTSK and NFAT2). In cellular experiment, MC3T3-E1 cells or primary osteoblasts and RAW264.7 cells were cultured in 25 mM high glucose-stimulated diabetic marrow microenvironment under differentiation induction and exposed to SMF. SMF promoted osteogenesis with higher ALP level and mineralization deposition in osteoblasts, and it also enhanced osteoclastogenesis with higher TRAP activity and bone resorption in osteoclasts under high glucose condition. Further, SMF increased iron content with higher FTH1 expression and regulated the redox level through activating HO-1/Nrf2 in tibial tissues, and lowered hepatic iron accumulation by BMP6-mediated regulation of hepcidin and lipid peroxidation in mice with type 1 diabetes. Thus, SMF may act as a potential therapy for improving bone health in type 1 diabetes with regulation on iron homeostasis metabolism and redox status.
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Affiliation(s)
- Huanhuan Lv
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, China
| | - Yijia Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
| | - Chenxiao Zhen
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
| | - Junyu Liu
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
| | - Xin Chen
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
| | - Gejing Zhang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
| | - Wei Yao
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
| | - Huijie Guo
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
| | - Yunpeng Wei
- School of Medicine, Shenzhen University, Shenzhen, China
| | - Shenghang Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
- Department of Spinal Surgery, Shenzhen Longhua New District People's Hospital, Shenzhen, China
| | - Jiancheng Yang
- Department of Osteoporosis, Honghui Hospital, Xi'an, China
| | - Peng Shang
- Key Laboratory for Space Bioscience and Biotechnology, Northwestern Polytechnical University, Xi'an, China
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, China
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19
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Liu H, Ghosh S, Vaidya T, Bammidi S, Huang C, Shang P, Nair AP, Chowdhury O, Stepicheva NA, Strizhakova A, Hose S, Mitrousis N, Gadde SG, Mb T, Strassburger P, Widmer G, Lad EM, Fort PE, Sahel JA, Zigler JS, Sethu S, Westenskow PD, Proia AD, Sodhi A, Ghosh A, Feenstra D, Sinha D. Activated cGAS/STING signaling elicits endothelial cell senescence in early diabetic retinopathy. JCI Insight 2023; 8:e168945. [PMID: 37345657 PMCID: PMC10371250 DOI: 10.1172/jci.insight.168945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/12/2023] [Indexed: 06/23/2023] Open
Abstract
Diabetic retinopathy (DR) is a leading cause of blindness in working-age adults and remains an important public health issue worldwide. Here we demonstrate that the expression of stimulator of interferon genes (STING) is increased in patients with DR and animal models of diabetic eye disease. STING has been previously shown to regulate cell senescence and inflammation, key contributors to the development and progression of DR. To investigate the mechanism whereby STING contributes to the pathogenesis of DR, diabetes was induced in STING-KO mice and STINGGT (loss-of-function mutation) mice, and molecular alterations and pathological changes in the retina were characterized. We report that retinal endothelial cell senescence, inflammation, and capillary degeneration were all inhibited in STING-KO diabetic mice; these observations were independently corroborated in STINGGT mice. These protective effects resulted from the reduction in TBK1, IRF3, and NF-κB phosphorylation in the absence of STING. Collectively, our results suggest that targeting STING may be an effective therapy for the early prevention and treatment of DR.
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Affiliation(s)
- Haitao Liu
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Sayan Ghosh
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Tanuja Vaidya
- GROW Laboratory, Narayana Nethralaya Foundation, Bengaluru, India
| | - Sridhar Bammidi
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Chao Huang
- Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., Basel, Switzerland
| | - Peng Shang
- Doheny Eye Institute, Los Angeles, California, USA
| | | | - Olivia Chowdhury
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Nadezda A Stepicheva
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Anastasia Strizhakova
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Stacey Hose
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Nikolaos Mitrousis
- Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., Basel, Switzerland
| | | | - Thirumalesh Mb
- GROW Laboratory, Narayana Nethralaya Foundation, Bengaluru, India
| | - Pamela Strassburger
- Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., Basel, Switzerland
| | - Gabriella Widmer
- Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., Basel, Switzerland
| | - Eleonora M Lad
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, USA
| | - Patrice E Fort
- Kellogg Eye Center, University of Michigan School of Medicine, Ann Arbor, Michigan, USA
| | - José-Alain Sahel
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Institut De La Vision, INSERM, CNRS, Sorbonne Université, Paris, France
| | - J Samuel Zigler
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Peter D Westenskow
- Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., Basel, Switzerland
| | - Alan D Proia
- Department of Pathology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Pathology, Campbell University Jerry M. Wallace School of Osteopathic Medicine, Lillington, North Carolina, USA
| | - Akrit Sodhi
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Arkasubhra Ghosh
- GROW Laboratory, Narayana Nethralaya Foundation, Bengaluru, India
| | - Derrick Feenstra
- Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., Basel, Switzerland
| | - Debasish Sinha
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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20
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Xi Y, Jiang X, Xie X, Zhao M, Zhang H, Qin K, Wang X, Liu Y, Yang S, Shen Q, Ji L, Shang P, Zhang W, Shan T. Viromics Reveals the High Diversity of Viruses from Fishes of the Tibet Highland. Microbiol Spectr 2023; 11:e0094623. [PMID: 37219423 PMCID: PMC10269613 DOI: 10.1128/spectrum.00946-23] [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: 03/06/2023] [Accepted: 05/09/2023] [Indexed: 05/24/2023] Open
Abstract
Aquaculture is important for food security and nutrition. The economy has recently been significantly threatened and the risk of zoonoses significantly increased by aquatic diseases, and the ongoing introduction of new aquatic pathogens, particularly viruses, continues to represent a hazard. Yet, our knowledge of the diversity and abundance of fish viruses is still limited. Here, we conducted a metagenomic survey of different species of healthy fishes caught in the Lhasa River, Tibet, China, and sampled intestinal contents, gills, and tissues. To be more precise, by identifying and analyzing viral genomes, we aim to determine the abundance, diversity, and evolutionary relationships of viruses in fish with other potential hosts. Our analysis identified 28 potentially novel viruses, 22 of which may be associated with vertebrates, across seven viral families. During our research, we found several new strains of viruses in fish, including papillomavirus, hepadnavirus, and hepevirus. Additionally, we discovered two viral families, Circoviridae and Parvoviridae, which were prevalent and closely related to viruses that infect mammals. These findings further expand our understanding of highland fish viruses and highlight the emerging view that fish harbor large, unknown viruses. IMPORTANCE The economy and zoonoses have recently been significantly threatened by aquatic diseases. Yet, our knowledge of the diversity and abundance of fish viruses is still limited. We identified the wide genetic diversity of viruses that these fish were harboring. Since there are currently few studies on the virome of fish living in the Tibet highland, our research adds to the body of knowledge. This discovery lays the groundwork for future studies on the virome of fish species and other highland animals, preserving the ecological equilibrium on the plateau.
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Affiliation(s)
- Yuan Xi
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiaojie Jiang
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xinrui Xie
- Animal Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, Tibet, China
| | - Min Zhao
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Han Zhang
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Kailin Qin
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiaochun Wang
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yuwei Liu
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Shixing Yang
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Quan Shen
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Likai Ji
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Peng Shang
- Animal Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, Tibet, China
| | - Wen Zhang
- Department of Microbiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Tongling Shan
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
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21
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Zhang X, Shang P, Li B. A novel Dynamic Body Weight Support overground co-walker enabling variable unloading ratio and Motion Tracking. Front Neurosci 2023; 17:1188776. [PMID: 37360168 PMCID: PMC10285068 DOI: 10.3389/fnins.2023.1188776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/16/2023] [Indexed: 06/28/2023] Open
Abstract
Dynamic Body Weight Support (BWS) systems have gained attention in recent years for their potential in gait training. However, maintaining a natural gait and vertical unloading have been less explored. In our previous work, we developed a body Motion Tracking (MT) walker that can move with patients. In this study, we introduce a novel Motion Tracking Variable Body Weight Support (MTVBWS) system for overground walkers. This system utilizes Center of Mass (COM) tracking and gait phase detection to not only dynamically support the user's body weight in the vertical direction but also to facilitate movement in all directions. The system achieves this horizontal omnidirectional movement by employing active Mecanum wheels, guided by COM recognition. The validation experiments were implemented with the MT mode, passive mode, and BWS mode in "static," "fixed unloading ratio (FUR)," and "variable unloading ratio (VUR)" settings with unloading force of 20 and 30%. The result shows that, compared to other modes, the proposed system in the MTVBWS mode can reduce the dragging effect in the horizontal plane caused by the walker. Moreover, the unloading force can be adjusted automatically to minimize the fluctuations in the force experienced by each lower limb during the rehabilitation walking training process. In comparison to natural walk, this mode presents smaller force fluctuations for each lower limb.
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Affiliation(s)
- Xiaoqian Zhang
- Center of Neuroengineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Shenzhen Jieshui Medical Technology Co., Ltd., Shenzhen, China
| | - Peng Shang
- Center of Neuroengineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Bing Li
- Department of Spinal Surgery, Liuzhou Worker's Hospital, Liuzhou, China
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22
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Liu P, Guo L, Zhao H, Shang P, Chu Z, Lu X. A Novel Method for Recognizing Space Radiation Sources Based on Multi-Scale Residual Prototype Learning Network. Sensors (Basel) 2023; 23:4708. [PMID: 37430620 DOI: 10.3390/s23104708] [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] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 07/12/2023]
Abstract
As a basic task and key link of space situational awareness, space target recognition has become crucial in threat analysis, communication reconnaissance and electronic countermeasures. Using the fingerprint features carried by the electromagnetic signal to recognize is an effective method. Because traditional radiation source recognition technologies are difficult to obtain satisfactory expert features, automatic feature extraction methods based on deep learning have become popular. Although many deep learning schemes have been proposed, most of them are only used to solve the inter-class separable problem and ignore the intra-class compactness. In addition, the openness of the real space may invalidate the existing closed-set recognition methods. In order to solve the above problems, inspired by the application of prototype learning in image recognition, we propose a novel method for recognizing space radiation sources based on a multi-scale residual prototype learning network (MSRPLNet). The method can be used for both the closed- and open-set recognition of space radiation sources. Furthermore, we also design a joint decision algorithm for an open-set recognition task to identify unknown radiation sources. To verify the effectiveness and reliability of the proposed method, we built a set of satellite signal observation and receiving systems in a real external environment and collected eight Iridium signals. The experimental results show that the accuracy of our proposed method can reach 98.34% and 91.04% for the closed- and open-set recognition of eight Iridium targets, respectively. Compared to similar research works, our method has obvious advantages.
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Affiliation(s)
- Pengfei Liu
- National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi'an 710600, China
| | - Lishu Guo
- National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China
- Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi'an 710600, China
| | - Hang Zhao
- National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China
- Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi'an 710600, China
| | - Peng Shang
- National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China
- Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi'an 710600, China
| | - Ziyue Chu
- National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi'an 710600, China
| | - Xiaochun Lu
- National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xi'an 710600, China
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23
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Lin WJ, Shi WP, Ge WY, Chen LL, Guo WH, Shang P, Yin DC. Magnetic Fields Reduce Apoptosis by Suppressing Phase Separation of Tau-441. Research (Wash D C) 2023; 6:0146. [PMID: 37228640 PMCID: PMC10204748 DOI: 10.34133/research.0146] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 04/21/2023] [Indexed: 05/27/2023]
Abstract
The biological effects of magnetic fields (MFs) have been a controversial issue. Fortunately, in recent years, there has been increasing evidence that MFs do affect biological systems. However, the physical mechanism remains unclear. Here, we show that MFs (16 T) reduce apoptosis in cell lines by inhibiting liquid-liquid phase separation (LLPS) of Tau-441, suggesting that the MF effect on LLPS may be one of the mechanisms for understanding the "mysterious" magnetobiological effects. The LLPS of Tau-441 occurred in the cytoplasm after induction with arsenite. The phase-separated droplets of Tau-441 recruited hexokinase (HK), resulting in a decrease in the amount of free HK in the cytoplasm. In cells, HK and Bax compete to bind to the voltage-dependent anion channel (VDAC I) on the mitochondrial membrane. A decrease in the number of free HK molecules increased the chance of Bax binding to VDAC I, leading to increased Bax-mediated apoptosis. In the presence of a static MF, LLPS was marked inhibited and HK recruitment was reduced, resulting in an increased probability of HK binding to VDAC I and a decreased probability of Bax binding to VDAC I, thus reducing Bax-mediated apoptosis. Our findings revealed a new physical mechanism for understanding magnetobiological effects from the perspective of LLPS. In addition, these results show the potential applications of physical environments, such as MFs in this study, in the treatment of LLPS-related diseases.
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24
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Zhang L, Zhang S, Zhan F, Song M, Shang P, Zhu F, Li J, Yang F, Li X, Qiao R, Han X, Li X, Liu G, Wang K. Population Genetic Analysis of Six Chinese Indigenous Pig Meta-Populations Based on Geographically Isolated Regions. Animals (Basel) 2023; 13:ani13081396. [PMID: 37106959 PMCID: PMC10135051 DOI: 10.3390/ani13081396] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 03/01/2023] [Revised: 03/28/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
The diversification of indigenous pig breeds in China has resulted from multiple climate, topographic, and human cultural influences. The numerous indigenous pig breeds can be geographically divided into six meta-populations; however, their genetic relationships, contributions to genetic diversity, and genetic signatures remain unclear. Whole-genome SNP data for 613 indigenous pigs from the six Chinese meta-populations were obtained and analyzed. Population genetic analyses confirmed significant genetic differentiation and a moderate mixture among the Chinese indigenous pig meta-populations. The North China (NC) meta-population had the largest contribution to genetic and allelic diversity. Evidence from selective sweep signatures revealed that genes related to fat deposition and heat stress response (EPAS1, NFE2L2, VPS13A, SPRY1, PLA2G4A, and UBE3D) were potentially involved in adaptations to cold and heat. These findings from population genetic analyses provide a better understanding of indigenous pig characteristics in different environments and a theoretical basis for future work on the conservation and breeding of Chinese indigenous pigs.
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Affiliation(s)
- Lige Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Songyuan Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Fengting Zhan
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Mingkun Song
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Peng Shang
- Animal Science College, Tibet Agriculture and Animal Husbandry University, Linzhi 860000, China
| | - Fangxian Zhu
- National Animal Husbandry Service, Beijing 100193, China
| | - Jiang Li
- National Supercomputing Center in Zhengzhou, Zhengzhou 450001, China
| | - Feng Yang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiuling Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Ruimin Qiao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Xuelei Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Xinjian Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Gang Liu
- National Animal Husbandry Service, Beijing 100193, China
| | - Kejun Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
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25
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Wang J, Shang P. Static magnetic field: A potential tool of controlling stem cells fates for stem cell therapy in osteoporosis. Prog Biophys Mol Biol 2023; 178:91-102. [PMID: 36596343 DOI: 10.1016/j.pbiomolbio.2022.12.007] [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] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 12/10/2022] [Accepted: 12/29/2022] [Indexed: 01/01/2023]
Abstract
Osteoporosis is a kind of bone diseases characterized by dynamic imbalance of bone formation and bone absorption, which is prone to fracture, and seriously endangers human health. At present, there is a lack of highly effective drugs for it, and the existing measures all have some side effects. In recent years, mesenchymal stem cell therapy has brought a certain hope for osteoporosis, while shortcomings such as homing difficulty and unstable therapeutic effects limit its application widely. Therefore, it is extremely urgent to find effective and reliable means/drugs for adjuvant stem cell therapy or develop new research techniques. It has been reported that static magnetic fields(SMFs) has a certain alleviating and therapeutic effect on varieties of bone diseases, also promotes the proliferation and osteogenic differentiation of mesenchymal stem cells derived from different tissues to a certain extent. Basing on the above background, this article focuses on the key words "static/constant magnetic field, mesenchymal stem cell, osteoporosis", combined literature and relevant contents were studied to look forward that SMFs has unique advantages in the treatment of osteoporosis with mesenchymal stem cells, which can be used as an application tool to promote the progress of stem cell therapy in clinical application.
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Affiliation(s)
- Jianping Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Peng Shang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China; School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China.
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26
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Zhang Z, Yuan X, Guo H, Shang P. The Influence of Electrode Design on Detecting the Effects of Ferric Ammonium Citrate (FAC) on Pre-Osteoblast through Electrical Cell-Substrate Impedance Sensing (ECIS). Biosensors (Basel) 2023; 13:322. [PMID: 36979534 PMCID: PMC10046662 DOI: 10.3390/bios13030322] [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] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/15/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Detection sensitivity is a crucial factor in the application of ECIS sensors. For these biosensors, the electrode configuration has a direct impact on sensitivity, yet few studies on monopolar electrodes have been reported. In this study, ECIS sensor arrays, which have a series of working electrode configuration with a wide diameter range and different electrode number, were fabricated to monitor living osteoblast-like MC3T3-E1 cells. The experimental results revealed that when the electrode diameter was larger than 25 μm, electrodes with smaller diameter and number yielded higher impedance values and generated more impedance shift to cell status change. The membrane capacitance obtained by equivalent circuit fitting was at the same level. When the electrode diameter was even smaller, the results in detection of cell monolayer were opposite, and there was no distinct relationship between impedance and membrane capacitance shift to cell status change and electrode geometry. The proposed sensor chip, allowing for a sustained and stable detection of cellular impedance, provides the basis for the selection of the electrode configuration of monopolar electrodes. The test results of electrodes with a diameter of 25 μm and lower indicated the possibility of single cell impedance measurement, which can provide unique insight into the heterogeneous electrical behavior of cells, and, in this case, the electrode size should be close to the cell size.
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Affiliation(s)
- Zheyuan Zhang
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Biosciences and Biotechnology, Northwestern Polytechnical University, Xi’an 710072, China
| | - Xichen Yuan
- Key Laboratory for Space Biosciences and Biotechnology, Northwestern Polytechnical University, Xi’an 710072, China
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Huijie Guo
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Biosciences and Biotechnology, Northwestern Polytechnical University, Xi’an 710072, China
| | - Peng Shang
- Key Laboratory for Space Biosciences and Biotechnology, Northwestern Polytechnical University, Xi’an 710072, China
- Research & Development Institute, Northwestern Polytechnical University in Shenzhen, Shenzhen 518110, China
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27
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Cao Z, Qi M, Shang P, Zhang H, Nawaz S, Ghaffar A, Wu Q, Dong H. Characterization, estimation of virulence and drug resistance of diarrheagenic escherichia coli (DEC) isolated from Tibetan pigs. Microb Pathog 2023; 177:106046. [PMID: 36842515 DOI: 10.1016/j.micpath.2023.106046] [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: 11/19/2022] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 02/28/2023]
Abstract
In this study, we collected feces of Tibetan piglets from Nyingchi area for isolation, culture, identification, virulence gene analysis and drug resistance analysis of Escherichia Coli. The results demonstrated a 41.3% isolation rate of Diarrheagenic Escherichia Coli from Tibetan pigs with the main phylogenetic groups: group A (68.6%) and group B2 (15.7%). Typical E.coli accounted for 76.5%. The highest detection rates of porcine virulence genes were E.coli heat-resistant enterotoxin STb (58.82%) and F107 fimbrial subunit (23.53%). The highest detection rates of virulence genes from Tibetan pigs were fimC (80.39%) and ompA (76.47%). A drug sensitivity test showed that Diarrheagenic Escherichia Coli from Tibetan pigs had high drug resistance rates to mezlocillin, doxycycline and gentamicin. This study comprehensively analyzed the species composition, virulence and drug resistance of Diarrheagenic Escherichia Coli from Tibetan pigs, which provided a clearer and more targeted idea for the prevention and treatment of yellow and white dysentery in Tibetan pigs in the future.
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Affiliation(s)
- Zhipeng Cao
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Linzhi, 860000, China
| | - Ming Qi
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Linzhi, 860000, China
| | - Peng Shang
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Linzhi, 860000, China
| | - Hui Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Shah Nawaz
- Department of Anatomy, Faculty of Veterinary Science, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Abdul Ghaffar
- Department of Zoology, Faculty of Chemical & Biological Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Qingxia Wu
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Linzhi, 860000, China
| | - Hailong Dong
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Linzhi, 860000, China.
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Shang P, Ma Y, Zhang Z, Sun P, Liu H, Shi H, Lin Q, Xue T, Ji Y. The Effects of Hemisphere Dome Orientation on the Structure of Diamond-like Carbon Film Prepared Using Ion Beam Assisted Deposition. Materials (Basel) 2023; 16:1773. [PMID: 36902887 PMCID: PMC10004551 DOI: 10.3390/ma16051773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/30/2022] [Accepted: 12/14/2022] [Indexed: 06/18/2023]
Abstract
Diamond-like carbon (DLC) has attracted significant attention in the recent decades because of its unique properties and applications. Ion beam assisted deposition (IBAD) has been widely established in industry due to the advantages of easy handling and scalability. In this work, a hemisphere dome model is specially designed as a substrate. The influence of the surface orientation on the coating thickness, Raman ID/IG ratio, surface roughness and the stress of the DLC films are examined. The reduction in the stress in the DLC films reflects the lower energy-dependence in diamond due to the varied sp3/sp2 fraction and columnar growth pattern. The variation of the surface orientation provides an efficient means of tailoring the properties and microstructure of the DLC films.
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Affiliation(s)
- Peng Shang
- GRINM Guojing Advanced Materials Co., Ltd., General Research Institute for Nonferrous Metals, Beijing 100088, China
- Tianjin Key Laboratory of Optical Thin Film, Tianjin Jinhang Technical Physics Institute, Tianjin 300308, China
| | - Yuanfei Ma
- GRINM Guojing Advanced Materials Co., Ltd., General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Zhenyun Zhang
- GRINM Guojing Advanced Materials Co., Ltd., General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Peng Sun
- Tianjin Key Laboratory of Optical Thin Film, Tianjin Jinhang Technical Physics Institute, Tianjin 300308, China
| | - Huasong Liu
- Tianjin Key Laboratory of Optical Thin Film, Tianjin Jinhang Technical Physics Institute, Tianjin 300308, China
| | - Hongchun Shi
- GRINM Guojing Advanced Materials Co., Ltd., General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Quan Lin
- GRINM Guojing Advanced Materials Co., Ltd., General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Tao Xue
- Center for Analysis and Tests, Tianjin University, Tianjin 300072, China
| | - Yiqin Ji
- Tianjin Key Laboratory of Optical Thin Film, Tianjin Jinhang Technical Physics Institute, Tianjin 300308, China
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Wang J, Zhao B, Che J, Shang P. Hypoxia Pathway in Osteoporosis: Laboratory Data for Clinical Prospects. Int J Environ Res Public Health 2023; 20:3129. [PMID: 36833823 PMCID: PMC9963321 DOI: 10.3390/ijerph20043129] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/02/2023] [Accepted: 02/04/2023] [Indexed: 05/29/2023]
Abstract
The hypoxia pathway not only regulates the organism to adapt to the special environment, such as short-term hypoxia in the plateau under normal physiological conditions, but also plays an important role in the occurrence and development of various diseases such as cancer, cardiovascular diseases, osteoporosis. Bone, as a special organ of the body, is in a relatively low oxygen environment, in which the expression of hypoxia-inducible factor (HIF)-related molecules maintains the necessary conditions for bone development. Osteoporosis disease with iron overload endangers individuals, families and society, and bone homeostasis disorder is linked to some extent with hypoxia pathway abnormality, so it is urgent to clarify the hypoxia pathway in osteoporosis to guide clinical medication efficiently. Based on this background, using the keywords "hypoxia/HIF, osteoporosis, osteoblasts, osteoclasts, osteocytes, iron/iron metabolism", a matching search was carried out through the Pubmed and Web Of Science databases, then the papers related to this review were screened, summarized and sorted. This review summarizes the relationship and regulation between the hypoxia pathway and osteoporosis (also including osteoblasts, osteoclasts, osteocytes) by arranging the references on the latest research progress, introduces briefly the application of hyperbaric oxygen therapy in osteoporosis symptoms (mechanical stimulation induces skeletal response to hypoxic signal activation), hypoxic-related drugs used in iron accumulation/osteoporosis model study, and also puts forward the prospects of future research.
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Affiliation(s)
- Jianping Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Bin Zhao
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jingmin Che
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Peng Shang
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Shenzhen 518057, China
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Zhang G, Zhen C, Yang J, Zhang Z, Wu Y, Che J, Shang P. 1–2 T static magnetic field combined with Ferumoxytol prevent unloading-induced bone loss by regulating iron metabolism in osteoclastogenesis. J Orthop Translat 2023; 38:126-140. [DOI: 10.1016/j.jot.2022.10.007] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
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Zhang B, Yuan X, Lv H, Che J, Wang S, Shang P. Biophysical mechanisms underlying the effects of static magnetic fields on biological systems. Prog Biophys Mol Biol 2023; 177:14-23. [PMID: 36240898 DOI: 10.1016/j.pbiomolbio.2022.09.002] [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] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 08/09/2022] [Accepted: 09/08/2022] [Indexed: 02/04/2023]
Abstract
With the widespread use of static magnetic fields (SMFs) in medicine, it is imperative to explore the biological effects of SMFs and the mechanisms underlying their effects on biological systems. The presence of magnetic materials within cells and organisms could affect various biological metabolism and processes, including stress responses, proliferation, and structural alignment. SMFs were generally found to be safe at the organ and organism levels. However. human subjects exposed to strong SMFs have reported side effects. In this review, we combined the magnetic properties of biological samples to illustrate the mechanism of action of SMFs on biological systems from a biophysical point of view. We suggest that the mechanisms of action of SMFs on biological systems mainly include the induction of electric fields and currents, generation of magnetic effects, and influence of electron spins. An electrolyte flowing in a static magnetic field generates an induced current and an electric field. Magnetomechanical effects include orientation effects upon subjecting biological samples to SMFs and movement of biological samples in strong field gradients. SMFs are thought to affect biochemical reaction rates and yields by influencing electron spin. This paper helps people how can harness the favorable biological effects of SMFs.
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Affiliation(s)
- Bin Zhang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China; School of Life Science, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xichen Yuan
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China; School of Life Science, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi'an, 710072, China; Yangtze River Delta Research Institute of Northwestern Polytechnical University, Taicang, 215400, China
| | - Huanhuan Lv
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China; School of Life Science, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Jingmin Che
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China; School of Life Science, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Shenghang Wang
- School of Life Science, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Department of Spine Surgery, Affiliated Longhua People's Hospital, Southern Medical University, Shenzhen, 518057, China
| | - Peng Shang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, Northwestern Polytechnical University, Xi'an, 710072, China.
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Gupta U, Ghosh S, Wallace CT, Shang P, Xin Y, Nair AP, Yazdankhah M, Strizhakova A, Ross MA, Liu H, Hose S, Stepicheva NA, Chowdhury O, Nemani M, Maddipatla V, Grebe R, Das M, Lathrop KL, Sahel JA, Zigler JS, Qian J, Ghosh A, Sergeev Y, Handa JT, St. Croix CM, Sinha D. Increased LCN2 (lipocalin 2) in the RPE decreases autophagy and activates inflammasome-ferroptosis processes in a mouse model of dry AMD. Autophagy 2023; 19:92-111. [PMID: 35473441 PMCID: PMC9809950 DOI: 10.1080/15548627.2022.2062887] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [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: 11/03/2021] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 01/09/2023] Open
Abstract
In dry age-related macular degeneration (AMD), LCN2 (lipocalin 2) is upregulated. Whereas LCN2 has been implicated in AMD pathogenesis, the mechanism remains unknown. Here, we report that in retinal pigmented epithelial (RPE) cells, LCN2 regulates macroautophagy/autophagy, in addition to maintaining iron homeostasis. LCN2 binds to ATG4B to form an LCN2-ATG4B-LC3-II complex, thereby regulating ATG4B activity and LC3-II lipidation. Thus, increased LCN2 reduced autophagy flux. Moreover, RPE cells from cryba1 KO, as well as sting1 KO and Sting1Gt mutant mice (models with abnormal iron chelation), showed decreased autophagy flux and increased LCN2, indicative of CGAS- and STING1-mediated inflammasome activation. Live cell imaging of RPE cells with elevated LCN2 also showed a correlation between inflammasome activation and increased fluorescence intensity of the Liperfluo dye, indicative of oxidative stress-induced ferroptosis. Interestingly, both in human AMD patients and in mouse models with a dry AMD-like phenotype (cryba1 cKO and KO), the LCN2 homodimer variant is increased significantly compared to the monomer. Sub-retinal injection of the LCN2 homodimer secreted by RPE cells into NOD-SCID mice leads to retinal degeneration. In addition, we generated an LCN2 monoclonal antibody that neutralizes both the monomer and homodimer variants and rescued autophagy and ferroptosis activities in cryba1 cKO mice. Furthermore, the antibody rescued retinal function in cryba1 cKO mice as assessed by electroretinography. Here, we identify a molecular pathway whereby increased LCN2 elicits pathophysiology in the RPE, cells known to drive dry AMD pathology, thus providing a possible therapeutic strategy for a disease with no current treatment options.Abbreviations: ACTB: actin, beta; Ad-GFP: adenovirus-green fluorescent protein; Ad-LCN2: adenovirus-lipocalin 2; Ad-LCN2-GFP: adenovirus-LCN2-green fluorescent protein; LCN2AKT2: AKT serine/threonine kinase 2; AMBRA1: autophagy and beclin 1 regulator 1; AMD: age-related macular degeneration; ARPE19: adult retinal pigment epithelial cell line-19; Asp278: aspartate 278; ATG4B: autophagy related 4B cysteine peptidase; ATG4C: autophagy related 4C cysteine peptidase; ATG7: autophagy related 7; ATG9B: autophagy related 9B; BLOC-1: biogenesis of lysosomal organelles complex 1; BLOC1S1: biogenesis of lysosomal organelles complex 1 subunit 1; C57BL/6J: C57 black 6J; CGAS: cyclic GMP-AMP synthase; ChQ: chloroquine; cKO: conditional knockout; Cys74: cysteine 74; Dab2: DAB adaptor protein 2; Def: deferoxamine; DHE: dihydroethidium; DMSO: dimethyl sulfoxide; ERG: electroretinography; FAC: ferric ammonium citrate; Fe2+: ferrous; FTH1: ferritin heavy chain 1; GPX: glutathione peroxidase; GST: glutathione S-transferase; H2O2: hydrogen peroxide; His280: histidine 280; IFNL/IFNλ: interferon lambda; IL1B/IL-1β: interleukin 1 beta; IS: Inner segment; ITGB1/integrin β1: integrin subunit beta 1; KO: knockout; LC3-GST: microtubule associated protein 1 light chain 3-GST; C-terminal fusion; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; LCN2: lipocalin 2; mAb: monoclonal antibody; MDA: malondialdehyde; MMP9: matrix metallopeptidase 9; NLRP3: NLR family pyrin domain containing 3; NOD-SCID: nonobese diabetic-severe combined immunodeficiency; OS: outer segment; PBS: phosphate-buffered saline; PMEL/PMEL17: premelanosome protein; RFP: red fluorescent protein; rLCN2: recombinant LCN2; ROS: reactive oxygen species; RPE SM: retinal pigmented epithelium spent medium; RPE: retinal pigment epithelium; RSL3: RAS-selective lethal; scRNAseq: single-cell ribonucleic acid sequencing; SD-OCT: spectral domain optical coherence tomography; shRNA: small hairpin ribonucleic acid; SM: spent medium; SOD1: superoxide dismutase 1; SQSTM1/p62: sequestosome 1; STAT1: signal transducer and activator of transcription 1; STING1: stimulator of interferon response cGAMP interactor 1; TYR: tyrosinase; VCL: vinculin; WT: wild type.
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Affiliation(s)
- Urvi Gupta
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Sayan Ghosh
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Callen T. Wallace
- Department of Cell Biology and Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Peng Shang
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ying Xin
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Meysam Yazdankhah
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Anastasia Strizhakova
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Mark A. Ross
- Department of Cell Biology and Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Haitao Liu
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Stacey Hose
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Nadezda A. Stepicheva
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Olivia Chowdhury
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Mihir Nemani
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Vishnu Maddipatla
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Rhonda Grebe
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Manjula Das
- Molecular Immunology, Mazumdar Shaw Medical Foundation, Bengaluru, India
| | - Kira L. Lathrop
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Bioengineering, University of Pittsburgh Swanson School of Engineering, Pittsburgh, PA, USA
| | - José-Alain Sahel
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Institut De La Vision, INSERM, CNRS, Sorbonne Université, Paris, France
| | - J. Samuel Zigler
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jiang Qian
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Arkasubhra Ghosh
- GROW Laboratory, Narayana Nethralaya Foundation, Bengaluru, India
| | - Yuri Sergeev
- National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - James T. Handa
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Claudette M. St. Croix
- Department of Cell Biology and Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Debasish Sinha
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Cell Biology and Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Ophthalmology, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Chowdhury O, Ghosh S, Das A, Liu H, Shang P, Stepicheva NA, Hose S, Sinha D, Chattopadhyay S. Sustained systemic inflammation increases autophagy and induces EMT/fibrotic changes in mouse liver cells: Protection by melatonin. Cell Signal 2023; 101:110521. [PMID: 36375715 DOI: 10.1016/j.cellsig.2022.110521] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022]
Abstract
The unending lifestyle stressors along with genetic predisposition, environmental factors and infections have pushed the immune system into a state of constant activity, leading to unresolved inflammation and increased vulnerability to chronic diseases. Liver fibrosis, an early-stage liver condition that increases the risk of developing liver diseases like cirrhosis and hepatocellular carcinoma, is among the various diseases linked to inflammation that dominate worldwide morbidity and mortality. We developed a mouse model with low-grade lipopolysaccharide (LPS) exposure that shows hepatic damage and a pro-inflammatory condition in the liver. We show that inflammation and oxidative changes increase autophagy in liver cells, a degradation process critical in maintaining cellular homeostasis. Our findings from in vivo and in vitro studies also show that induction of both inflammation and autophagy trigger epithelial-mesenchymal transition (EMT) and pro-fibrotic changes in hepatocytes. Inhibiting the inflammatory pathways with a naturally occurring NF-κB inhibitor and antioxidant, melatonin, could assuage the changes in autophagy and activation of EMT/fibrotic pathways in hepatocytes. Taken together, this study shows a pathway linking inflammation and autophagy which could be targeted for future drug development to delay the progression of liver fibrosis.
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Affiliation(s)
- Olivia Chowdhury
- Department of Physiology, University of Calcutta, Kolkata, West Bengal, India
| | - Sayan Ghosh
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ankur Das
- Department of Physiology, University of Calcutta, Kolkata, West Bengal, India
| | - Haitao Liu
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Peng Shang
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Nadezda A Stepicheva
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Stacey Hose
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Debasish Sinha
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sreya Chattopadhyay
- Department of Physiology, University of Calcutta, Kolkata, West Bengal, India; Centre for Research in Nanoscience and Nanotechnology (CRNN), University of Calcutta, JD-2, Salt Lake, Sector III, Kolkata 700098, India.
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Liu Z, Suolang Q, Wang J, Li L, Luo Z, Shang P, Chen XD, Wu P. Formation of structured clots, gastric emptying and hydrolysis kinetics of yak milk during in vitro dynamic gastrointestinal digestion: Impact of different heat treatments. Food Res Int 2022; 162:111958. [DOI: 10.1016/j.foodres.2022.111958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 07/29/2022] [Accepted: 09/18/2022] [Indexed: 11/04/2022]
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Chang Z, Bo S, Xiao Q, Wang Y, Wu X, He Y, Iqbal M, Ye Y, Shang P. Remodeling of the microbiota improves the environmental adaptability and disease resistance in Tibetan pigs. Front Microbiol 2022; 13:1055146. [DOI: 10.3389/fmicb.2022.1055146] [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: 09/27/2022] [Accepted: 11/07/2022] [Indexed: 12/05/2022] Open
Abstract
IntroductionThe establishment of intestinal microbiota and the maintenance of its equilibrium structure plays an important role in Tibetan pigs during different growth stages. Understanding the structure and function of the intestinal microbiota at different growth stages of Tibetan pigs can provide a theoretical basis for guiding nutritional regulation and feeding management in different stages.MethodsFecal samples were collected from the Tibetan piglets at different growth stages, and the 16S rRNA was sequenced to analyze the changes of intestinal microbiota.ResultsAlpha and Beta diversity indexes showed that the diversity of the intestinal microbiota did not change during the three growth stages, and the main components of intestinal microbiota were not significantly different. At the phylum level, Firmicutes and Bacteroidetes were dominant and abundant at different growth stages and were not restricted by age. At the genus level, Streptococcus, Lactobacillus, and Bifidobacterium were the most dominant in the TP10d and TP40d groups, Streptococcus was the most dominant in the TP100d group, followed by Treponema_2 and Lactobacillus. Fusobacteria, Gluconobacter, and Synergistetes were found to be specific genera of 10-day-old Tibetan piglets by LEfSe combined with LDA score. The change of diet made Tenericutes and Epsilonbacteraeota, which are closely related to digestive fiber, become specific bacteria at the age of 40 days. With the consumption of oxygen in the intestine, obligate anaerobes, such as Verrucomicrobia, Fibrobacter, and Planctomycetes, were the characteristic genera of 100 days. KEGG function prediction analysis showed that the intestinal microbiota function of Tibetan pigs changed dynamically with the growth and development of Tibetan piglets.DiscussionIn conclusion, the structure and composition of the intestinal microbiota of Tibetan pigs are significantly different at different growth and development stages, which plays an important role in their immune performance.
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Shi Y, Zheng J, Feng P, Shang P, Liu C, Chen T, Shan S. BTA Deep Hole Vibration Drilling for Nickel-Based Alloys: Cooling Patterns and Cutter Tooth Wear Mechanisms. Materials (Basel) 2022; 15:8178. [PMID: 36431662 PMCID: PMC9695049 DOI: 10.3390/ma15228178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
The high cutting temperature and poor thermal diffusion efficiency of nickel-based alloys during deep hole machining have become technical challenges in the hole machining field. In this paper, a finite element simulation model of Inconel-718 BTA ordinary drilling and vibration drilling processes was established by using Deform-3D finite element simulation software. The variations in the temperatures of the tool teeth and the workpiece at different positions of the nickel-based alloy under ordinary drilling and vibration drilling were investigated. Additionally, the wear pattern of each tool tooth under the two drilling methods was further analyzed by building an experimental platform for workpiece temperature detection, which reveals the wear and cooling mechanism of nickel-based alloy BTA deep hole drilling. The results show that the average temperatures of the external, intermediate, and central teeth were reduced by 18.1%, 21.1%, and 17.8%, respectively, during vibration drilling. In addition, the workpiece hole wall and hole bottom temperatures were reduced by 5.7% and 4.6%, respectively. To conclude, the experimental tests were consistent with the simulated temperature trends. BTA vibration drilling optimizes the heat exchange conditions between the cutter teeth and the workpiece during the drilling of nickel-based alloys, which effectively reduces the cutting temperature and, thus, improves the wear resistance of the cutter teeth.
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Affiliation(s)
- Yuhua Shi
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China
- School of Equipment Management and Support, Engineering University of PAP, Xi’an 710078, China
| | - Jianming Zheng
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China
| | - Pei Feng
- School of Equipment Management and Support, Engineering University of PAP, Xi’an 710078, China
- Science and Technology on Plasma Dynamics Lab, Air Force Engineering University, Xi’an 710038, China
| | - Peng Shang
- School of Equipment Management and Support, Engineering University of PAP, Xi’an 710078, China
| | - Chi Liu
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China
| | - Ting Chen
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China
| | - Shijie Shan
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China
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Yang G, Sun P, Wang Y, Shi Z, Yan Q, Li S, Yang G, Yang K, Dun S, Shang P, Deng L, Li H, Jiang N. Effects of Y 2O 3 and LiAl 5O 8 on the Microstructure and Optical Properties of Reactively Sintered AlON Based Transparent Ceramics. Materials (Basel) 2022; 15:8036. [PMID: 36431521 PMCID: PMC9694456 DOI: 10.3390/ma15228036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/03/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Sintering aid was very crucial to influence the microstructure and thus the optical property of the sintered optical ceramics. The purpose of this work was to explain the difference between the sintering aids of Li+ and Y3+ on Al23O27N5 (AlON) ceramic via reaction sintering method. The effects of LiAl5O8 (LA) and Y2O3 on the sintering of Al2O3-AlN system were carefully compared, in terms of X-ray diffraction (XRD), microstructure, density, X-ray photoelectron spectroscopy (XPS) and optical transmittance. According to the XPS and XRD lattice analysis, the chemical structure of the materials was not obviously affected by different dopants. We firstly reported that, there was obvious volume expansion in the Y3+ dopped AlON ceramics, which was responsible for the low transparency of the ceramics. Obvious enhancements were achieved using Li+ aids from the results that Li: AlONs showing a higher transparency and less optical defects. A higher LA content (20 wt%) was effective to remove pores and thus obtain a higher transmittance (~86.8% at ~3.5 μm). Thus, pores were the main contributions to the property difference between the dopant samples. The importance of sintering aids should be carefully realized for the reaction sintering fabrication of AlON based ceramics towards high transparency.
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Affiliation(s)
- Guojian Yang
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Sun
- Tianjin Key Laboratory of Optical Thin Films, Tianjin Jinhang Technical Physics Institute, Tianjin 300192, China
| | - Yuezhong Wang
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Tianjin Key Laboratory of Optical Thin Films, Tianjin Jinhang Technical Physics Institute, Tianjin 300192, China
| | - Zitao Shi
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Qingwei Yan
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Shasha Li
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Guoyong Yang
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Ke Yang
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Shijie Dun
- Tianjin Key Laboratory of Optical Thin Films, Tianjin Jinhang Technical Physics Institute, Tianjin 300192, China
| | - Peng Shang
- Tianjin Key Laboratory of Optical Thin Films, Tianjin Jinhang Technical Physics Institute, Tianjin 300192, China
| | - Lifen Deng
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - He Li
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Nan Jiang
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Li G, Zhang L, Lu Z, Yang B, Yang H, Shang P, Jiang JX, Wang D, Xu H. Connexin 43 Channels in Osteocytes Are Necessary for Bone Mass and Skeletal Muscle Function in Aged Male Mice. Int J Mol Sci 2022; 23:13506. [PMID: 36362291 PMCID: PMC9654692 DOI: 10.3390/ijms232113506] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/24/2022] [Accepted: 11/03/2022] [Indexed: 09/26/2023] Open
Abstract
Osteoporosis and sarcopenia (termed "Osteosarcopenia"), the twin-aging diseases, are major contributors to reduced bone mass and muscle weakness in the elderly population. Connexin 43 (Cx43) in osteocytes has been previously reported to play vital roles in bone homeostasis and muscle function in mature mice. The Cx43-formed gap junctions (GJs) and hemichannels (HCs) in osteocytes are important portals for the exchange of small molecules in cell-to-cell and cell-to-extracellular matrix, respectively. However, the roles of Cx43-based GJs and HCs in both bone and muscle aging are still unclear. Here, we used two transgenic mouse models with overexpression of the dominant negative Cx43 mutants primarily in osteocytes driven by the 10-kb Dmp1 promoter, R76W mice (inhibited gap junctions but enhanced hemichannels) and Δ130-136 mice (both gap junction and hemichannels are inhibited), to determine the actions of Cx43-based hemichannels (HCs) and gap junctions (GJs) in the regulation of bone and skeletal muscle from aged mice (18 months) as compared with those from adult mice (10 months). We demonstrated that enhancement of Cx43 HCs reduces bone mass due to increased osteoclast surfaces while the impairment of Cx43 HCs increases osteocyte apoptosis in aged mice caused by reduced PGE2 levels. Furthermore, altered mitochondrial homeostasis with reduced expression of Sirt-1, OPA-1, and Drp-1 resulted in excessive ROS level in muscle soleus (SL) of aged transgenic mice. In vitro, the impairment of Cx43 HCs in osteocytes from aged mice also promoted muscle collagen synthesis through activation of TGFβ/smad2/3 signaling because of reduced PGE2 levels in the PO CM. These findings indicate that the enhancement of Cx43 HCs while GJs are inhibited reduces bone mass, and the impairment of Cx43 HCs inhibits PGE2 level in osteocytes and this reduction promotes muscle collagen synthesis in skeletal muscle through activation of TGFβ/smad2/3 signaling, which together with increased ROS level contributes to reduced muscle force in aged mice.
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Affiliation(s)
- Guobin Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Lan Zhang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Zhe Lu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Baoqiang Yang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Hui Yang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Peng Shang
- Key Laboratory for Space Bioscience and Biotechnology, Research and Development Institute in Shenzhen, Northwestern Polytechnical University, Shenzhen 518057, China
| | - Jean X. Jiang
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Dong’en Wang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Huiyun Xu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
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Shang P, Dong S, Han Y, Bo S, Ye Y, Duan M, Chamba Y. Environmental exposure to swine farms reshapes human gut microbiota. Chemosphere 2022; 307:135558. [PMID: 35780983 DOI: 10.1016/j.chemosphere.2022.135558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/21/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
The gut microbiota can change to varying degrees because of changes in the environment. In the present study, we performed microbial amplicon sequencing on the feces of people who had long-term exposure to swine farms (F) and that of people living in normal environments (S) to investigate the impact of the environment on the human gut microbiota. A total of 1,283,503 high-quality ordered sequences were obtained, which provided different levels of microbial classification and statistics. We found that different environments did not alter the richness and diversity of the microbial communities in participants, but caused significant changes in the proportion of some bacteria. The main bacterial phyla found in group F participants were Firmicutes (69.44-89.03%), Actinobacteria (1.7-18.95%), and Bacteroidetes (1.17-22.35%); those found in group S participants were Firmicutes (49.93-95.04%), Bacteroidetes (0.62-39.59%), and Proteobacteria (0.98-11.95%). Additionally, because of changes in phylum proportions, the Bugbase phenotypic classification predicted an increase in the proportion of Gram-positive bacteria in group F and an increase in the proportion of Gram-negative bacteria in group S. In conclusion, our findings suggest that human exposure to swine farms can reshape the gut microbiota, resulting in changes in the microbial abundances. This change can potentially reduce the odds of developing bowel disease and contribute to the prevention of intestinal diseases, providing a theoretical basis for improving human health.
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Affiliation(s)
- Peng Shang
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, People's Republic of China; The Provincial and Ministerial Co-founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, People's Republic of China
| | - Shixiong Dong
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, People's Republic of China; The Provincial and Ministerial Co-founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, People's Republic of China
| | - Yuqing Han
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, People's Republic of China; The Provincial and Ministerial Co-founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, People's Republic of China
| | - Suxue Bo
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, People's Republic of China; The Provincial and Ministerial Co-founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, People's Republic of China
| | - Yourong Ye
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, People's Republic of China; The Provincial and Ministerial Co-founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, People's Republic of China
| | - Mengqi Duan
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, People's Republic of China; The Provincial and Ministerial Co-founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, People's Republic of China
| | - Yangzom Chamba
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, People's Republic of China; The Provincial and Ministerial Co-founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, People's Republic of China.
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Wang Q, Li X, Xue B, Wu Y, Song H, Luo Z, Shang P, Liu Z, Huang Q. Low-salt fermentation improves flavor and quality of sour meat: Microbiology and metabolomics. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114157] [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: 11/12/2022]
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Yan F, Xu S, Chang Z, Nazar M, Chamba Y, Shang P. Seroprevalence and Risk Factors Investigations of Parvovirus Disease in Tibetan Pigs: First Report from Tibet. Vet Sci 2022; 9:576. [PMID: 36288189 PMCID: PMC9610086 DOI: 10.3390/vetsci9100576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/13/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023] Open
Abstract
Porcine parvovirus (PPV) disease is a worldwide spread animal disease with high infection rate and serious impact on meat economy causing significant losses in livestock production. The purpose of this paper is to investigate and analyze the regional seroprevalence of PPV in Tibetan pigs in Tibet and evaluate risk factors related to the disease. A total of 356 serum samples of Tibetan pigs were collected from four counties and districts in Tibet, and anti-PPV antibodies were detected by using a commercial competitive ELISA. Our results show a seroprevalence of 91.01% (324 serum samples were found to be positive for anti-PPV antibodies). The positive rate among different district was 100%, 96.55%, 93.68% and 72.83%, respectively in the Mainling County, in Bayi district, Nang County and Bomê County. We found significant differences between different age and gender groups; particularly female animals show a seroprevalence of 96.03% while the males only 83.46%. From the perspective of the growth stage, our results indicate that subadults show a seroprevalence significative higher than other age groups (100%). This study describes for the first time the PPV seroprevalence among Tibetan pigs characterizing risk factors involved in its transmission and providing information to be taken into account for eventual surveillance or eradication plans.
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Affiliation(s)
- Feifei Yan
- College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China
- The Provincial and Ministerial Co-founded Collaborative Innovation Center for R & D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Linzhi 860000, China
| | - Shijun Xu
- College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China
| | - Zhenyu Chang
- College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China
| | - Mudassar Nazar
- University of Agriculture Faisalabad, Burewala 61010, Pakistan
| | - Yangzom Chamba
- College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China
| | - Peng Shang
- College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China
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Liu H, Stepicheva NA, Ghosh S, Shang P, Chowdhury O, Daley RA, Yazdankhah M, Gupta U, Hose SL, Valapala M, Fitting CS, Strizhakova A, Shan Y, Feenstra D, Sahel JA, Jayagopal A, Handa JT, Zigler JS, Fort PE, Sodhi A, Sinha D. Reducing Akt2 in retinal pigment epithelial cells causes a compensatory increase in Akt1 and attenuates diabetic retinopathy. Nat Commun 2022; 13:6045. [PMID: 36229454 PMCID: PMC9561713 DOI: 10.1038/s41467-022-33773-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 10/03/2022] [Indexed: 01/14/2023] Open
Abstract
The retinal pigment epithelium (RPE) plays an important role in the development of diabetic retinopathy (DR), a leading cause of blindness worldwide. Here we set out to explore the role of Akt2 signaling-integral to both RPE homeostasis and glucose metabolism-to DR. Using human tissue and genetically manipulated mice (including RPE-specific conditional knockout (cKO) and knock-in (KI) mice), we investigate whether Akts in the RPE influences DR in models of diabetic eye disease. We found that Akt1 and Akt2 activities were reciprocally regulated in the RPE of DR donor tissue and diabetic mice. Akt2 cKO attenuated diabetes-induced retinal abnormalities through a compensatory upregulation of phospho-Akt1 leading to an inhibition of vascular injury, inflammatory cytokine release, and infiltration of immune cells mediated by the GSK3β/NF-κB signaling pathway; overexpression of Akt2 has no effect. We propose that targeting Akt1 activity in the RPE may be a novel therapy for treating DR.
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Affiliation(s)
- Haitao Liu
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Nadezda A. Stepicheva
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Sayan Ghosh
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Peng Shang
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA ,grid.280881.b0000 0001 0097 5623Present Address: Doheny Eye Institute, Pasadena, CA USA
| | - Olivia Chowdhury
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Rachel A. Daley
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Meysam Yazdankhah
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA ,grid.443945.b0000 0004 0566 7998Present Address: Neural Stem Cell Institute, Rensselaer, NY USA
| | - Urvi Gupta
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Stacey L. Hose
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Mallika Valapala
- grid.411377.70000 0001 0790 959XSchool of Optometry, Indiana University, Bloomington, IN USA
| | - Christopher Scott Fitting
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Anastasia Strizhakova
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Yang Shan
- grid.214458.e0000000086837370Kellogg Eye Center, University of Michigan School of Medicine, Ann Arbor, MI USA
| | - Derrick Feenstra
- grid.417570.00000 0004 0374 1269Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Ltd., Basel, Switzerland
| | - José-Alain Sahel
- grid.21925.3d0000 0004 1936 9000Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA ,grid.462844.80000 0001 2308 1657Institut de la Vision, INSERM, CNRS, Sorbonne Université, Paris, France
| | | | - James T. Handa
- grid.21107.350000 0001 2171 9311The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - J. Samuel Zigler
- grid.21107.350000 0001 2171 9311The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Patrice E. Fort
- grid.214458.e0000000086837370Kellogg Eye Center, University of Michigan School of Medicine, Ann Arbor, MI USA
| | - Akrit Sodhi
- grid.21107.350000 0001 2171 9311The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Debasish Sinha
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. .,The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Wu J, Zhang M, Yang D, Wei F, Xiao N, Shi L, Liu H, Shang P. Clinical tooth segmentation based on local enhancement. Front Mol Biosci 2022; 9:932348. [PMID: 36304923 PMCID: PMC9592892 DOI: 10.3389/fmolb.2022.932348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/20/2022] [Indexed: 11/15/2022] Open
Abstract
The tooth arrangements of human beings are challenging to accurately observe when relying on dentists’ naked eyes, especially for dental caries in children, which is difficult to detect. Cone-beam computer tomography (CBCT) is used as an auxiliary method to measure patients’ teeth, including children. However, subjective and irreproducible manual measurements are required during this process, which wastes much time and energy for the dentists. Therefore, a fast and accurate tooth segmentation algorithm that can replace repeated calculations and annotations in manual segmentation has tremendous clinical significance. This study proposes a local contextual enhancement model for clinical dental CBCT images. The local enhancement model, which is more suitable for dental CBCT images, is proposed based on the analysis of the existing contextual models. Then, the local enhancement model is fused into an encoder–decoder framework for dental CBCT images. At last, extensive experiments are conducted to validate our method.
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Affiliation(s)
- Jipeng Wu
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ming Zhang
- Department of Pediatrics, Zhongshan Hospital Xiamen University, Xiamen, China
| | - Delong Yang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Department of Burn Surgery, The First People’s Hospital of Foshan, Foshan, China
- *Correspondence: Delong Yang, ; Naian Xiao, ; Lei Shi,
| | - Feng Wei
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Naian Xiao
- Department of Neurology, The First Affiliated Hospital of Xiamen University, Xiamen, China
- *Correspondence: Delong Yang, ; Naian Xiao, ; Lei Shi,
| | - Lei Shi
- Dental Medicine Center, The Second Clinical Medical College of Jinan University, Shenzhen People’s Hosipital, Shenzhen, China
- *Correspondence: Delong Yang, ; Naian Xiao, ; Lei Shi,
| | - Huifeng Liu
- Dental Medicine Center, The Second Clinical Medical College of Jinan University, Shenzhen People’s Hosipital, Shenzhen, China
| | - Peng Shang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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Li G, Cao N, Shang P, Xu H. What the discovery of irisin receptor means to bone. Arch Physiol Biochem 2022; 128:1137-1139. [PMID: 32552131 DOI: 10.1080/13813455.2020.1772310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Guobin Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, PR China
| | - Na Cao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, PR China
| | - Peng Shang
- Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Shenzhen, PR China
| | - Huiyun Xu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, PR China
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Yi J, Li Y, Mai Q, Li Y, Lin Y, Weng X, Ai Z, Li M, Shang P, Iqbal M, Mehmood K, Chang YF, Tang Z, Zhang H, Li Y. Hepatotoxicity and the role of the gut-liver axis in dogs after oral administration of zinc oxide nanoparticles. Metallomics 2022; 14:6691725. [PMID: 36057841 DOI: 10.1093/mtomcs/mfac066] [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] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/11/2022] [Indexed: 11/14/2022]
Abstract
Zinc oxide nanoparticles (ZnO NPs) have been used in many fields, and people are concerned about its effects on health. The present study reported the changes in liver metabolites and intestinal microbiota induced by over-used ZnO NPs in dogs and explored the related mechanisms of liver injury induced by ZnO NPs. The results showed that over-used ZnO NPs promote zinc accumulation in the liver and increase liver coefficient and serum liver-related indexes. In addition, the over use of ZnO NPs increase the ROS levels, affect the hepatocyte antioxidant capacity and mitochondrial function. Results showed that ZnO NPs significantly inhibited the hepatocyte apoptosis via Cytc pathway and promoted the autophagy via activating mTOR/ATG5 pathway. Metabolic analysis of liver tissue showed that 81 metabolites changed overall and mainly affected the Glycerophospholipid metabolism. ZnO NPs can significantly change the richness and diversity of the intestinal bacteria in dogs, increasing the abundance of Firmicutes and Actinobacteria while reducing the bacterial abundance of Proteobacteria. In conclusion, the results suggest that over exposure to ZnO NPs can lead to the disruption of intestinal microbiome and liver metabolites in dogs, which ultimately lead to liver damage.
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Affiliation(s)
- Jiangnan Yi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yuanliang Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Qianying Mai
- Animal Health Supervision Institute in Panyu District of Guangzhou, Guangzhou 510642, China
| | - Yaxuan Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yingying Lin
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoshan Weng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhu Ai
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Mingze Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Peng Shang
- College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi, Tibet, China
| | - Mujahid Iqbal
- Department of Pathology, Cholistan University of Veterinary and Animal Sciences (CUVAS), Bahawalpur-63100, Pakistan
| | - Khalid Mehmood
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur-63100, Pakistan
| | - Yung-Fu Chang
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Hui Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.,Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, PR China
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Shang Z, Tan Z, Kong Q, Shang P, Wang H, Zhaxi W, Zhaxi C, Liu S. Characterization of fungal microbial diversity in Tibetan sheep, Tibetan gazelle and Tibetan antelope in the Qiangtang region of Tibet. MYCOSCIENCE 2022; 63:156-164. [PMID: 37090471 PMCID: PMC10042320 DOI: 10.47371/mycosci.2022.05.004] [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] [Received: 03/17/2021] [Revised: 05/20/2022] [Accepted: 05/22/2022] [Indexed: 11/16/2022]
Abstract
Due to the high crude fiber content, straw of various crops is difficult to become a high quality forage resource. The degradation of cellulose in nature mainly depends on the cellulase secreted by microbes, which degrade cellulose into small molecular substances through chemical action, and the microbes that secrete cellulase mainly include some bacteria, fungi and actinomycetes, etc. The large and diverse microbial population contained in the mammalian gastrointestinal tract plays an important role in nutrient digestion. At present, many cellulose-degrading strains have been screened and obtained from animal digestive system and feces, such as Bacillus subtilis from the feces of Panda, Bacillus amyloliquefaciens from the cecum of goose. In this study, the fungal diversity was analysed in the fresh faeces of Tibetan sheep, Tibetan gazelle and Tibetan antelope in Qiangtang, Tibet. Results showed that the structure and species of gut fungi are different in three animals, which may be related to the different physiological functions among different animals, e.g., Tibetan antelope and Tibetan gazelle have stronger tolerance to rough feeding than Tibetan sheep. This study will lay a foundation for cellulose-degrading fungal development and provides technical support for improving rough feeding tolerance of Tibetan sheep.
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Affiliation(s)
- Zhenda Shang
- College of Animal Science, Tibet Agricultural & Animal Husbandry University
| | - Zhankun Tan
- College of Animal Science, Tibet Agricultural & Animal Husbandry University
| | - Qinghui Kong
- College of Animal Science, Tibet Agricultural & Animal Husbandry University
| | - Peng Shang
- College of Animal Science, Tibet Agricultural & Animal Husbandry University
| | - Honghui Wang
- College of Animal Science, Tibet Agricultural & Animal Husbandry University
| | - Wangjie Zhaxi
- Baingoin County Agricultural Science and Technology Service station
| | - Ciren Zhaxi
- Baingoin County Agricultural Science and Technology Service station
| | - Suozhu Liu
- College of Animal Science, Tibet Agricultural & Animal Husbandry University
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47
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Shang P, Zhang B, Li P, Ahmed Z, Hu X, Chamba Y, Zhang H. Plateau Adaptation Gene Analyses Reveal Transcriptomic, Proteomic, and Dual Omics Expression in the Lung Tissues of Tibetan and Yorkshire Pigs. Animals (Basel) 2022; 12:ani12151919. [PMID: 35953907 PMCID: PMC9367445 DOI: 10.3390/ani12151919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/29/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022] Open
Abstract
Elevated environments such as plateaus are often classified as low oxygen environments. The hypoxic adaptation mechanisms utilized by organisms in these conditions are not well understood. To address this, the differentially expressed genes (DEGs) involved in hypoxia adaptation were assessed using two pig breeds (Tibetan pig [TP] and Yorkshire sow [YY]). Genes related to lung tissue responses to hypoxia were assessed using transcriptomic (using RNA-seq) and proteomic (using iTRAQ) analysis. A total of 1021 DEGs were screened out. In the iTRAQ omics data, a total of 22,100 peptides were obtained and 4518 proteins were found after filtering. A total of 271 differentially expressed proteins [DEPs] were screened using the conditions of p < 0.05; FC ≤ 0.833; and FC ≥ 1.2. A total of 14 DEGs at the mRNA and protein levels were identified and found to be associated with regulation of the inflammatory response; blood particles; and MAPK cascade response regulation. Among the DEGs, six were associated with hypoxia adaptation function (mitochondria and glycolysis) in pigs. The results of this study identify novel candidate genes involved in porcine hypoxia adaptation mechanisms.
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Affiliation(s)
- Peng Shang
- Laboratory National Engineering for Animal Breeding, Department of Animal Genetics and Breeding, China Agricultural University, Beijing 100193, China; (P.S.); (B.Z.); (P.L.); (X.H.)
- Department of animal husbandry, College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China
| | - Bo Zhang
- Laboratory National Engineering for Animal Breeding, Department of Animal Genetics and Breeding, China Agricultural University, Beijing 100193, China; (P.S.); (B.Z.); (P.L.); (X.H.)
| | - Pan Li
- Laboratory National Engineering for Animal Breeding, Department of Animal Genetics and Breeding, China Agricultural University, Beijing 100193, China; (P.S.); (B.Z.); (P.L.); (X.H.)
| | - Zulfiqar Ahmed
- Faculty of Veterinary and Animal Sciences, University of Poonch Rawalakot, Rawalakot 12350, Pakistan;
| | - Xiaoxiang Hu
- Laboratory National Engineering for Animal Breeding, Department of Animal Genetics and Breeding, China Agricultural University, Beijing 100193, China; (P.S.); (B.Z.); (P.L.); (X.H.)
| | - Yangzom Chamba
- Department of animal husbandry, College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China
- Correspondence: (Y.C.); (H.Z.)
| | - Hao Zhang
- Laboratory National Engineering for Animal Breeding, Department of Animal Genetics and Breeding, China Agricultural University, Beijing 100193, China; (P.S.); (B.Z.); (P.L.); (X.H.)
- Correspondence: (Y.C.); (H.Z.)
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48
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Shang P, Wei M, Duan M, Yan F, Chamba Y. Healthy Gut Microbiome Composition Enhances Disease Resistance and Fat Deposition in Tibetan Pigs. Front Microbiol 2022; 13:965292. [PMID: 35928149 PMCID: PMC9343729 DOI: 10.3389/fmicb.2022.965292] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 06/24/2022] [Indexed: 01/10/2023] Open
Abstract
The gut microbiota is involved in a range of physiological processes in animals, and modulating the microbiome composition is considered a novel target for identifying animal traits. Tibetan pigs show better fat deposition and disease resistance compared to Yorkshire pigs. However, studies investigating the correlation between favorable characteristics in Tibetan pigs and the gut microbial community remain scarce. In the current study, 1,249,822 high-quality sequences were obtained by amplicon sequencing of the colon contents of Tibetan and Yorkshire pigs. We found that at the boundary level, the abundance and relative abundance of colon bacterial community in Tibetan pigs were higher than that in Yorkshire pigs (P > 0.05). Phylum level, Firmicutes were the dominant colonic microflora of Tibetan and Yorkshire pigs, and the ratio of Firmicutes to Bacteroides in Tibetan pigs was slightly higher than in Yorkshire pigs. Actinobacteria and Spirobacteria were significantly higher in Tibetan pigs than in Yorkshire pigs (P < 0.05). At the genus level, the relative abundance of Bifidobacterium, Lactobacillus, and Bacteriologist, which are related to disease resistance, was significantly higher than that in Yorkshire pigs in Yorkshire pigs. In conclusion, the composition and abundance of colonic intestinal microflora in Tibetan pigs were closely related to their superior traits. Bifidobacteria, Ruminococcaceae, and Family-XIII-AD3011-Group are conducive to improving disease resistance in Tibetan pigs. Lactobacillus and Solobacterium were observed to be the main bacterial communities involved in fat deposition in Tibetan pigs. This study will provide a new reference for the development and utilization of Tibetan pigs in future.
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Affiliation(s)
- Peng Shang
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, China
- The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Linzhi, China
| | - Mingbang Wei
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, China
- The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Linzhi, China
| | - Mengqi Duan
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, China
- The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Linzhi, China
| | - Feifei Yan
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, China
- The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Linzhi, China
| | - Yangzom Chamba
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, China
- The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Linzhi, China
- *Correspondence: Yangzom Chamba,
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49
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Swartjes T, Shang P, van den Berg DTM, Künne T, Geijsen N, Brouns SJJ, van der Oost J, Staals RHJ, Notebaart RA. Modulating CRISPR-Cas Genome Editing Using Guide-Complementary DNA Oligonucleotides. CRISPR J 2022; 5:571-585. [PMID: 35856642 PMCID: PMC9419950 DOI: 10.1089/crispr.2022.0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) has revolutionized genome editing and has great potential for many applications, such as correcting human genetic disorders. To increase the safety of genome editing applications, CRISPR-Cas may benefit from strict control over Cas enzyme activity. Previously, anti-CRISPR proteins and designed oligonucleotides have been proposed to modulate CRISPR-Cas activity. In this study, we report on the potential of guide-complementary DNA oligonucleotides as controlled inhibitors of Cas9 ribonucleoprotein complexes. First, we show that DNA oligonucleotides inhibit Cas9 activity in human cells, reducing both on- and off-target cleavage. We then used in vitro assays to better understand how inhibition is achieved and under which conditions. Two factors were found to be important for robust inhibition: the length of the complementary region and the presence of a protospacer adjacent motif-loop on the inhibitor. We conclude that DNA oligonucleotides can be used to effectively inhibit Cas9 activity both ex vivo and in vitro.
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Affiliation(s)
- Thomas Swartjes
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Peng Shang
- Department of Anatomy and Embryology, Leiden University Medical Centre, Leiden, The Netherlands
| | | | - Tim Künne
- Food Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Niels Geijsen
- Department of Anatomy and Embryology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Stan J J Brouns
- Department of Bionanoscience, Delft University of Technology, Delft, The Netherlands.,Kavli Institute of Nanoscience, Delft, The Netherlands
| | - John van der Oost
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Raymond H J Staals
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Richard A Notebaart
- Food Microbiology, Wageningen University and Research, Wageningen, The Netherlands
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50
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Gong X, Zheng M, Zhang J, Ye Y, Duan M, Chamba Y, Wang Z, Shang P. Transcriptomics-Based Study of Differentially Expressed Genes Related to Fat Deposition in Tibetan and Yorkshire Pigs. Front Vet Sci 2022; 9:919904. [PMID: 35754534 PMCID: PMC9218471 DOI: 10.3389/fvets.2022.919904] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/09/2022] [Indexed: 12/15/2022] Open
Abstract
Fat deposition traits are one of the key factors in pig production and breeding. The fat deposition capacity of pigs mainly affects the quality of pork and pig productivity. The aim of this study was to analyze the differential expression of mRNA levels in dorsal adipose tissue of Tibetan and York pigs at different growth stages using transcriptomic data to estimate key genes that regulate fat deposition in pigs. The results showed that a total of 32,747 positively expressed genes were present in the dorsal adipose tissue of the two breeds. Differentially expressed gene (DEG) screening of multiple combinations between the two breeds yielded 324 DEGS. Gene ontology (GO) biofunctional enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses showed that these DEGS were mainly involved in lipid metabolic pathways, steroid biosynthetic pathways and lipid biosynthetic processes, sterol biosynthetic processes, brown adipocyte differentiation, and other pathways related to lipid deposition and metabolism. The results showed that ACACA, SLC2A4 and THRSP genes positively regulated the lipid deposition ability and CHPT1 gene negatively regulated the lipid deposition ability in pigs. The results of this experiment suggest a theoretical basis for further studies on the regulatory mechanisms of fat deposition in pigs.
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Affiliation(s)
- Xinglong Gong
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Min Zheng
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Jian Zhang
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Yourong Ye
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Mengqi Duan
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Yangzom Chamba
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Zhongbin Wang
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
| | - Peng Shang
- Tibet Agriculture and Animal Husbandry College, Tibet, China.,The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agricultural and Animal Husbandry Resources, Tibet, China
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