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Luo ZB, Yang LH, Han SZ, Chang SY, Liu H, An ZY, Zhang XL, Quan BH, Yin XJ, Kang JD. Cyclophosphamide reduces gene transcriptional activity and embryo in vitro development by inhibiting NF-κB expression through decreasing AcH4K12. Chem Biol Interact 2024; 387:110806. [PMID: 37980972 DOI: 10.1016/j.cbi.2023.110806] [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: 09/27/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 11/21/2023]
Abstract
Cyclophosphamide (CTX), a widely used chemotherapeutic agent for cancer treatment, has been associated with long-term toxicity and detrimental effects on oocytes and ovaries, resulting in female reproductive dysfunction. This study aimed to investigate the potential impact of CTX on in vitro maturation (IVM) injury of porcine oocytes and subsequent embryonic development, as well as its effects on epigenetic modification and gene activation during early embryonic development. The results demonstrated that CTX treatment caused aberrant spindle structure and mitochondrial dysfunction during oocyte maturation, inducing DNA damage and early apoptosis, which consequently disrupted meiotic maturation. Indeed, CTX significantly reduced the in vitro developmental capacity of porcine embryos, and induced DNA damage and apoptosis in in vitro fertilization (IVF) blastocysts. Importantly, CTX induced abnormal histone modification of AcH4K12 in early porcine embryos. Moreover, addition of LBH589 before zygotic genome activation (ZGA) effectively increased AcH4K12 levels and restored the protein expression of NF-κB, which can effectively enhance the in vitro developmental potential of IVF embryos. The DNA damage and apoptosis induced by CTX compromised the quality of the blastocysts, which were recovered by supplementation with LBH589. This restoration was accompanied by down-regulation of BAX mRNA expression and up-regulation of BCL2, POU5F1, SOX2 and SOD1 mRNA expression. These findings indicated that CTX caused abnormal histone modification of AcH4K12 in early porcine embryos and reduced the protein expression of NF-κB, a key regulator of early embryo development, which may block subsequent ZGA processes.
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Affiliation(s)
- Zhao-Bo Luo
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Liu-Hui Yang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Sheng-Zhong Han
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Shuang-Yan Chang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Hongye Liu
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Zhi-Yong An
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Xiu-Li Zhang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China
| | - Biao-Hu Quan
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Xi-Jun Yin
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China.
| | - Jin-Dan Kang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China.
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Liu Y, Jin ZY, Wang JX, Wang D, Liu H, Li D, Zhu J, Luo ZB, Han SZ, Chang SY, Yang LH, Kang JD, Quan LH. Ginsenoside Rg1 activates brown adipose tissue to counteract obesity in high-fat diet-fed mice by regulating gut microbes and bile acid composition. Food Funct 2023; 14:4696-4705. [PMID: 37186251 DOI: 10.1039/d2fo03142f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Obesity is a global health problem strongly linked to gut microbes and their metabolites. In this study, ginsenoside Rg1 (Rg1) reduced lipid droplet size and hepatic lipid accumulation by activating uncoupling protein 1 expression in brown adipose tissue (BAT), which in turn inhibited high-fat diet (HFD)-induced weight gain in mice. Furthermore, the intestinal flora of mice was altered, the abundance of Lachnoclostridium, Streptococcus, Lactococcus, Enterococcus and Erysipelatoclostridium was upregulated, and the concentrations of fecal bile acids were altered, with cholic acid and taurocholic acid concentrations being significantly increased. In addition, the beneficial effects of Rg1 were eliminated in mice treated with a combination of antibiotics. In conclusion, these results suggest that Rg1 activates BAT to counteract obesity by regulating gut microbes and bile acid composition in HFD-fed mice.
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Affiliation(s)
- Yize Liu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China.
| | - Zheng-Yun Jin
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China.
| | - Jun-Xia Wang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China.
| | - Danqi Wang
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanji, 133002, China
| | - Hongye Liu
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China.
| | - Dongxu Li
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanji, 133002, China
| | - Jun Zhu
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanji, 133002, China
| | - Zhao-Bo Luo
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China.
| | - Sheng-Zhong Han
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China.
| | - Shuang-Yan Chang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China.
| | - Liu-Hui Yang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China.
| | - Jin-Dan Kang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China.
| | - Lin-Hu Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China.
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3
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Liu H, Yan C, Hao C, Wang D, Liu Y, Luo ZB, Han SZ, Wang JX, Li D, Zhu J, Chang SY, Yang LH, Lin X, Yan C, Kang JD, Quan LH. Dynamic changes in intestinal microbiota and metabolite composition of pre-weaned beef calves. Microb Pathog 2023; 175:105991. [PMID: 36649780 DOI: 10.1016/j.micpath.2023.105991] [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: 11/26/2022] [Revised: 01/09/2023] [Accepted: 01/13/2023] [Indexed: 01/15/2023]
Abstract
Gut microbes and their metabolites are essential for maintaining host health and production. The intestinal microflora of pre-weaned calves gradually tends to mature with growth and development and has high plasticity, but few studies have explored the dynamic changes of intestinal microbiota and metabolites in pre-weaned beef calves. In this study, we tracked the dynamics of faecal microbiota in 13 new-born calves by 16S rRNA gene sequencing and analysed changes in faecal amino acid levels using metabolomics. Calves were divided into the relatively high average daily gain group (HA) and the relatively low average daily gain group (LA) for comparison. The results demonstrated that the alpha diversity of the faecal microbiota increased with calf growth and development. The abundance of Porphyromonadaceae bacterium DJF B175 increased in the HA group, while that of Lactobacillus reuteri decreased. The results of the LEfSe analysis showed that the microbiota of faeces of HA calves at eight weeks of age was enriched with P. bacterium DJF B175, while Escherichia coli and L. reuteri were enriched in the microbiota of faeces of LA calves. Besides, the total amino acid concentration decreased significantly in the eighth week compared with that in the first week (P < 0.05). Overall, even under the same management conditions, microorganisms and their metabolites interact to play different dynamic regulatory roles. Our results provide new insights into changes in the gut microbiota and metabolites of pre-weaned calves.
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Affiliation(s)
- Hongye Liu
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; Department of Animal Science, College of Agriculture, Yanbian University, Yanji, 133002, China.
| | - Chunri Yan
- Department of Preventive Medicine, Medical College, Yanbian University, Yanji, 133002, China.
| | - Chunyun Hao
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji, 133002, China.
| | - Danqi Wang
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji, 133002, China.
| | - Yize Liu
- College of Pharmacy, Yanbian University, Yanji, 133002, China.
| | - Zhao-Bo Luo
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, 133002, China.
| | - Sheng-Zhong Han
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, 133002, China.
| | - Jun-Xia Wang
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; Department of Animal Science, College of Agriculture, Yanbian University, Yanji, 133002, China.
| | - Dongxu Li
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji, 133002, China.
| | - Jun Zhu
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji, 133002, China.
| | - Shuang-Yan Chang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, 133002, China.
| | - Liu-Hui Yang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, 133002, China.
| | - Xuemei Lin
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, 133002, China.
| | - Changguo Yan
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; Department of Animal Science, College of Agriculture, Yanbian University, Yanji, 133002, China.
| | - Jin-Dan Kang
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, 133002, China.
| | - Lin-Hu Quan
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China; College of Pharmacy, Yanbian University, Yanji, 133002, China.
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Wang D, Wang JX, Yan C, Liu Y, Liu H, Li D, Zhu J, Luo ZB, Han SZ, Jin ZY, Chang SY, Yang LH, Kang JD, Quan LH. Gastrodia elata Blume extract improves high-fat diet-induced type 2 diabetes by regulating gut microbiota and bile acid profile. Front Microbiol 2022; 13:1091712. [PMID: 36532435 PMCID: PMC9756436 DOI: 10.3389/fmicb.2022.1091712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 11/21/2022] [Indexed: 03/24/2024] Open
Abstract
In this study, we aimed to characterize the anti-type 2 diabetes (T2D) effects of Gastrodia elata Blume extract (GEBE) and determine whether these are mediated through modification of the gut microbiota and bile acids. Mice were fed a high-fat diet (HFD), with or without GEBE, and we found that GEBE significantly ameliorated the HFD-induced hyperglycemia, insulin resistance, and inflammation by upregulating glucose transporter 4 (GLUT4) and inhibiting the toll-like receptor 4-nuclear factor kappa-B signaling pathway in white adipose tissue (WAT). In addition, we found that GEBE increased the abundance of Faecalibaculum and Lactobacillus, and altered the serum bile acid concentrations, with a significant increase in deoxycholic acid. The administration of combined antibiotics to mice to eliminate their intestinal microbiota caused a loss of the protective effects of GEBE. Taken together, these findings suggest that GEBE ameliorates T2D by increasing GLUT4 expression in WAT, remodeling the gut microbiota, and modifying serum bile acid concentrations.
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Affiliation(s)
- Danqi Wang
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University and Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, China
| | - Jun-Xia Wang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, Jilin, China
| | - Chunri Yan
- Department of Preventive Medicine, Medical College, Yanbian University, Yanji, Jilin, China
| | - Yize Liu
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University and Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, China
| | - Hongye Liu
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, Jilin, China
| | - Dongxu Li
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University and Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, China
| | - Jun Zhu
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University and Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, China
| | - Zhao-Bo Luo
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, Jilin, China
| | - Sheng-Zhong Han
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, Jilin, China
| | - Zheng-Yun Jin
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, Jilin, China
| | - Shuang-Yan Chang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, Jilin, China
| | - Liu-Hui Yang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, Jilin, China
| | - Jin-Dan Kang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, Jilin, China
| | - Lin-Hu Quan
- Interdisciplinary Program of Biological Functional Molecules, College of Integration Science, Yanbian University and Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, China
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5
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Choe HM, Gao K, Paek HJ, Luo ZB, Han SZ, Li ZY, Xuan MF, Quan BH, Kang JD, Yin XJ. Effect of myostatin gene mutation on erythrocyte osmotic fragility, hematological parameters and fatty acid composition of serum and erythrocyte membranes in piglets. Res Vet Sci 2022; 152:663-669. [DOI: 10.1016/j.rvsc.2022.09.025] [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: 12/21/2021] [Revised: 08/30/2022] [Accepted: 09/22/2022] [Indexed: 11/25/2022]
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Han SZ, Gao K, Chang SY, Choe HM, Paek HJ, Quan BH, Liu XY, Yang LH, Lv ST, Yin XJ, Quan LH, Kang JD. miR-455-3p Is Negatively Regulated by Myostatin in Skeletal Muscle and Promotes Myoblast Differentiation. J Agric Food Chem 2022; 70:10121-10133. [PMID: 35960196 DOI: 10.1021/acs.jafc.2c02474] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Myostatin (MSTN) is a growth and differentiation factor that regulates proliferation and differentiation of myoblasts, which in turn controls skeletal muscle growth. It may regulate myoblast differentiation by influencing miRNA expression, and the present study aimed to clarify its precise mechanism of action. Here, we found that MSTN-/- pigs showed an overgrowth of skeletal muscle and upregulated miR-455-3p level. Intervention of MSTN expression using siMSTN in C2C12 myoblasts also showed that siMSTN significantly increased the expression of miR-455-3p. It was found that miR-455-3p directly targeted the 3'-untranslated region of Smad2 by dual-luciferase assay. qRT-PCR, Western blotting, and immunofluorescence analyses indicated that miR-455-3p overexpression or Smad2 silencing in C2C12 myoblasts significantly promoted myoblast differentiation. Furthermore, siMSTN significantly increased the expression of GATA3. The levels of miR-455-3p were considerably reduced in C2C12 myoblasts following GATA3 knockdown. Consistently, GATA3 knockdown also reduced the enhanced miR-455-3p expression caused by siMSTN. Finally, we illustrated that GATA3 has a role in myoblast differentiation regulation. Taken together, we identified the expression profiles of miRNAs in MSTN-/- pigs and found that miR-455-3p positively regulates myoblast differentiation. In addition, we revealed that MSTN acts through the GATA3/miR-455-3p/Smad2 cascade to regulate muscle development.
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Affiliation(s)
- Sheng-Zhong Han
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Kai Gao
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Shuang-Yan Chang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Hak-Myong Choe
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Hyo-Jin Paek
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Biao-Hu Quan
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Xin-Yue Liu
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Liu-Hui Yang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Si-Tong Lv
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Xi-Jun Yin
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
| | - Lin-Hu Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Jin-Dan Kang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji, 133002, China
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, China
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Wang ZX, Wu X, Xu J, Ye YZ, Han SZ, Ye LJ, Wu BB, Wang CQ, Yu H. [Value of metagenomic next-generation sequencing in the etiology diagnosis of bacterial meningitis in children]. Zhonghua Er Ke Za Zhi 2022; 60:769-773. [PMID: 35922186 DOI: 10.3760/cma.j.cn112140-20220317-00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Objective: To explore the value of metagenomic next-generation sequencing (mNGS) in the etiology diagnosis of bacterial meningitis in children. Methods: The etiological results of 189 children diagnosed with "bacterial meningitis" or "purulent meningitis" or "central nervous system infection" in the Children's Hospital of Fudan University from 1st January 2019 to 31st December 2020 were analyzed retrospectively. The cerebrospinal fluid (CFS) of the children with bacterial meningitis was detected by culture and mNGS respectively, and the difference of pathogen detection rate between the 2 methods was analyzed. According to the age at the time of visit, the children were divided into neonatal group (≤28 days of age) and non-neonatal group (>28 days of age), and χ2 test was used to compare the positive rate between the 2 groups. Taking CFS culture as the gold standard, the sensitivity and specificity of mNGS in the diagnosing of bacterial meningitis in children were analyzed. Results: Among these 189 children with bacterial meningitis, 116 were males and 73 were females. A total of 76 strains of pathogens were detected in blood and (or) CSF cultures, of which 50 strains (65.8%) were Gram-positive bacteria; among those, 18 strains (23.7%) of Streptococcus agalactiae, 17 strains (19.7%) of Escherichia coli and 15 strains (19.7%) of Streptococcus pneumoniae were detected with higher detection rate. The infection rate of Gram-positive bacteria in the non-neonatal group was higher than that in the neonatal group (76.0% (38/50) vs. 50.0% (13/26), χ2=5.24, P=0.020).The same CSF samples of 48 cases were tested by mNGS and culture at the same time, and the detection rate of mNGS was higher than that of CSF culture (20 cases (41.7%) vs. 12 cases (25.0%), χ2=16.45, P<0.001). The consistency of mNGS and culture results was 79.2% (38/48), and the same pathogen was detected in 11 children with both positive mNGS and CSF culture. Taking the results of CSF culture as the gold standard, the sensitivity of mNGS in the diagnosing of bacterial meningitis was 91.7%, and the specificity was 75.0%. Conclusions: The mNGS technology can improve the pathogen detection rate of bacterial meningitis in children, and has a high consistency with CSF culture. In suspected cases where the pathogen cannot be identified by traditional methods, CSF mNGS should be considered timely.
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Affiliation(s)
- Z X Wang
- Department of Infectious Diseases, Children's Hospital of Fudan University, Clinical Center for Infectious Diseases and Immunology, Shanghai 201102, China
| | - X Wu
- Department of Infectious Diseases, Children's Hospital of Fudan University, Clinical Center for Infectious Diseases and Immunology, Shanghai 201102, China
| | - J Xu
- Department of Infectious Diseases, Children's Hospital of Fudan University, Clinical Center for Infectious Diseases and Immunology, Shanghai 201102, China
| | - Y Z Ye
- Department of Infectious Diseases, Children's Hospital of Fudan University, Clinical Center for Infectious Diseases and Immunology, Shanghai 201102, China
| | - S Z Han
- Department of Infectious Diseases, Children's Hospital of Fudan University, Clinical Center for Infectious Diseases and Immunology, Shanghai 201102, China
| | - L J Ye
- Department of Infectious Diseases, Children's Hospital of Fudan University, Clinical Center for Infectious Diseases and Immunology, Shanghai 201102, China
| | - B B Wu
- Center for Molecular Medicine, Children's Hospital of Fudan University, Shanghai 201102, China
| | - C Q Wang
- Microbiology Department of Clinical Medical Laboratory, Children's Hospital of Fudan University, Shanghai 201102, China
| | - H Yu
- Department of Infectious Diseases, Children's Hospital of Fudan University, Clinical Center for Infectious Diseases and Immunology, Shanghai 201102, China
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Chang SY, Han SZ, Choe HM, Gao K, Jin ZY, Liu XY, Yang LH, Lv ST, Yin XJ, Quan LH, Kang JD. miR-320 regulates myogenesis by targeting growth factor receptor-bound protein-2 and ameliorates myotubes atrophy. Int J Biochem Cell Biol 2022; 147:106212. [PMID: 35439649 DOI: 10.1016/j.biocel.2022.106212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 04/11/2022] [Accepted: 04/13/2022] [Indexed: 11/16/2022]
Abstract
Loss of muscle mass can lead to diseases such as sarcopenia, diabetes, and obesity, which can worsen the quality of life and increase the incidence of disease. Therefore, understanding the mechanism underlying skeletal muscle differentiation is vital to prevent muscle diseases. We previously found that microRNA-320 (miR-320) is highly expressed in the lean muscle-type pigs, but its regulatory role in myogenesis remains unclear. The bioinformatics prediction indicated that miR-320 could bind to the 3 'untranslated region of growth factor receptor-bound protein-2 (Grb2). We hypothesized that miR-320 targets Grb2 to regulate myoblasts differentiation. To verify this, we transfected miR-320 mimic and inhibitor into C2C12 myoblasts to assess the role of miR-320 during myoblasts differentiation. We used real-time qPCR, luciferase reporter assays, and western blotting to confirm that miR-320 directly targets Grb2 to promote myoblasts differentiation. Moreover, by using a dexamethasone-induced atrophic model of myotubes, we discovered that miR-320 promotes the repair of damaged myotubes. Our findings expand understanding of miRNAs and genes related to regulating skeletal muscle differentiation, and provide insight into underlying therapeutic strategies for muscle diseases.
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Affiliation(s)
- Shuang-Yan Chang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China
| | - Sheng-Zhong Han
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China
| | - Hak-Myong Choe
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China
| | - Kai Gao
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China
| | - Zheng-Yun Jin
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China
| | - Xin-Yue Liu
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China
| | - Liu-Hui Yang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China
| | - Si-Tong Lv
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China
| | - Xi-Jun Yin
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China
| | - Lin-Hu Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China.
| | - Jin-Dan Kang
- Department of Animal Science, College of Agricultural, Yanbian University, Yanji 133002, China; Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji 133002, China.
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9
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Choe HM, Quan BH, Paek HJ, Luo ZB, Gao K, Han SZ, Li ZY, Kang JD, Yin XJ. Altered fibrinogen level and fibrin clot structure in myostatin homozygous mutant pig. Anim Genet 2022; 53:307-316. [PMID: 35285059 DOI: 10.1111/age.13187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/22/2022] [Accepted: 02/28/2022] [Indexed: 12/25/2022]
Abstract
Obesity is associated with increased serum fibrinogen level. Myostatin (MSTN), a strong inhibitor of skeletal muscle growth, is recognized as a potential target for obesity. However, the effect of MSTN inhibition on fibrinogen is not largely known. The objective of the present study was to explore fibrinogen levels after MSTN inhibition. Fibrinogen levels and the fibrin clot structure of MSTN homozygous knockout (KO) and wild-type (WT) pigs (n = 4 in each group) were investigated. The protein expression of fibrinogen in the serum and liver of KO pigs decreased greatly (1.6-fold loss for serum and 2.5-fold loss for liver). KO pigs showed significantly decreased gene expression of fibrinogen chains: FGA (fibrinogen-α; 11-fold), FGB (fibrinogen-β; 8-fold) and FGG (fibrinogen-γ; 7.4-fold). The basal transcriptional regulators of fibrinogen, HNF1 (hepatocyte nuclear factor 1) and CEBP-α (CCAAT/Enhancing-binding protein-alpha) were remarkably down-regulated after interruption of MSTN expression by siRNA (small interfering RNA) in cultured hepatocytes (about 2- and 4-fold, respectively). Compared with WT pigs, KO pigs displayed altered fibrin clot structure with thinner fibers, decreased turbidity and increased permeability. The findings indicate that the inhibition of MSTN could affect fibrinogen levels and the fibrin clot structure.
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Affiliation(s)
- Hak Myong Choe
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Biao-Hu Quan
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Hyo-Jin Paek
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Zhao-Bo Luo
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Kai Gao
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Sheng-Zhong Han
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Zhou-Yan Li
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Jin-Dan Kang
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Xi-Jun Yin
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
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10
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Xu J, Ye YZ, Ye LJ, Han SZ, Wu X, Wang C, Yu H. [Etiology and clinical characteristics of fever of unknown origin in 357 pediatric patients]. Zhonghua Er Ke Za Zhi 2022; 60:41-45. [PMID: 34986622 DOI: 10.3760/cma.j.cn112140-20210427-00350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the etiologies and clinical characteristics of fever of unknown origin (FUO) and to provide clues for early diagnosis of FUO. Methods: The data about etiology, age, sex, clinical course, length of hospital stays and the expression levels of inflammatory factors in fever phase of 357 pediatric inpatients who were diagnosed with FUO in Children's Hospital of Fudan University from 1 January 2016 to 31 December 2020 were collected and retrospectively analyzed. Participants were grouped into infectious disease, inflammatory disease, malignancy and others and according to the classification of diseases and also grouped into those aged<1 year, 1-<3 years,3-<6 years, 6-<12 years and 12-<18 years. Comparisons between groups were performed using the Mann-Whitney U test, Kruskal-Wallis H test and χ² test. Results: Among the 357 patients (217 males and 140 females). The age of onset was 3.9 (1.3, 9.2) years and visiting age was 5.1 (2.0, 9.3) years. The time-consuming of diagnosis was 94 (66, 213) days. The hospital stay was 8 (6, 14) days. The most frequently identified cause of FUO was infectious diseases (163 cases, 45.7%), followed by non-infectious inflammatory diseases (133 cases, 37.2%), malignancy (21 cases, 5.9%) and others (40 cases, 11.2%). The patients at younger age were more likely to be attacked by malignancy, oncologic diagnoses, and others, nevertheless patients at older age were more likely to be attacked by non-infectious inflammatory diseases oppositely (9.8 (3.6, 11.5) vs. 3.0 (1.2, 7.0), 2.3 (1.0, 5.2), 0.9 (0.5, 1.8) years, U=41.30, 15.94, 37.08, all P<0.01);106 (65%) patients were male, and 57 (35%) patients were female. This result indicated that boys were more susceptible to infectious diseases (χ²=14.73, P<0.01). Analysis of inflammatory factors in serum among 103 patients, interleukin (IL)-6 level in 40 infectious diseases patients (9 (2, 38) ng/L) was significantly lower than those of 6 tumor patients (89 (64, 599) ng/L) and 57 non-infectious inflammatory diseases patients (25 (8, 78) ng/L, U=51.05, 15.70, both P<0.05), no significant difference was observed in IL-2, IL-4, IL-10, tumor necrosis factor α and interferon among the groups (all P>0.05). The patients grouped into those aged 1-<3 years and 3-<6 years were more likely to be attacked by infectious diseases (51.3% (59/115) and 57.1% (40/70)), while patients grouped into those aged 6-<12 years and 12-<18 years were more likely to be attacked by non-infectious inflammatory diseases (55.6% (65/117) and 72.4% (21/29)). Conclusions: Infectious disease is still the main cause of FUO in children and the boys are more susceptible to infectious diseases. However, the morbidity of non-infectious inflammatory diseases increases to number 1 in FUO of children over 6 years of age.
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Affiliation(s)
- J Xu
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y Z Ye
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L J Ye
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - S Z Han
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X Wu
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - C Wang
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - H Yu
- Department of Infectious Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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11
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Paek HJ, Luo ZB, Choe HM, Quan BH, Gao K, Han SZ, Li ZY, Kang JD, Yin XJ. Association of myostatin deficiency with collagen related disease-umbilical hernia and tippy toe standing in pigs. Transgenic Res 2021; 30:663-674. [PMID: 34304368 DOI: 10.1007/s11248-021-00275-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 07/19/2021] [Indexed: 11/30/2022]
Abstract
Herein, we investigate the high incidence of umbilical hernia and tippy-toe standing and their underlying changes in gene expression and proliferation in myostatin knockout (MSTN-/-) pigs. Thirty-six male MSTN-/- pigs were generated by somatic cell nuclear transfer (SCNT). These pigs presented a considerably high incidence of tippy-toe standing and umbilical hernia (69.4% and 61.1%, respectively). The tendon to body weight ratio was significantly lower than wild-type pigs (0.202 ± 0.017 vs 0.250 ± 0.004, respectively). The crimp length of the MSTN-/- tendon was significantly longer than that of wild-type pigs. The expression of MSTN and the activin type IIB (ACVR2B) was detected in the tendon and linea alba of MSTN-/- pigs. MSTN treatment significantly increased the phosphorylation of Smad2/3 in both tendon and linea alba fibroblasts. Type I collagen (Col1A) and Scleraxis (Scx) expression levels in the tendon and linea alba of MSTN-/- pigs were significantly lower than those in wild-type in vivo, whereas and cyclin-dependent kinase inhibitor 1 (p21) expression levels were higher. Treatment of tendon and linea alba fibroblasts with recombinant MSTN increased Col1A and Scx and decreased p21 expression in vivo. Moreover, there was a significant increase in fibroblast proliferation after treatment. The results indicated that MSTN regulates collagen expression and proliferation in tendon and linea alba fibroblasts; thus, MSTN deficiency causes collagen-related pathological features in MSTN-/- pigs. Hence, MSTN could be used as a therapeutic target for treating UH and tendon abnormalities.
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Affiliation(s)
- Hyo-Jin Paek
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, Jilin, China
| | - Zhao-Bo Luo
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, Jilin, China
| | - Hak-Myong Choe
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, Jilin, China
| | - Biao-Hu Quan
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, Jilin, China
| | - Kai Gao
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, Jilin, China
| | - Sheng-Zhong Han
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, Jilin, China
| | - Zhou-Yan Li
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, Jilin, China
| | - Jin-Dan Kang
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, Jilin, China
| | - Xi-Jun Yin
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, 133002, Jilin, China.
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12
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Luo ZB, Xuan MF, Han SZ, Li ZY, Khan N, Quan BH, Yin XJ, Kang JD. Ginsenoside Rb1 protects porcine oocytes against methylglyoxal damage thus it improves the quality of parthenogenetic activation and in vitro fertilization embryos. Environ Toxicol 2021; 36:586-597. [PMID: 33236476 DOI: 10.1002/tox.23063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 11/15/2020] [Indexed: 06/11/2023]
Abstract
Panax ginseng, a functional food, has been widely used as an edible nourishment and medicinal supplement. Ginsenoside Rb1 is a major bioactive ingredient of ginseng, which shows very specific anti-apoptosis and anti-oxidant activities. Methylglyoxal (MGO) is one of intermediate products of glucose metabolism, which is absorbed easily from high sugar foods or carbonated beverages. It may involve in a variety of detrimental processes in vivo. However, it has not been fully explored the effects of ginsenoside Rb1 on MGO-induced oocytes damage. This study found that MGO-induced DNA damage and mitochondrial dysfunction result in the failure of porcine oocytes maturation and low in vitro development capacity of parthenogenetic activation (PA) and in vitro fertilization (IVF) embryos. Conversely, Rb1 supplementation recovered the rate of maturation, and improved in vitro development capacity of PA and IVF embryos. Rb1 also provided porcine oocytes a lower level of reactive oxygen species production, higher level of ATP content and mitochondrial membrane potential, and stimulated pluripotency gene expression in blastocysts. The findings of this study reveal ginsenoside Rb1 protects porcine oocyte from the cytotoxicity effects of methylglyoxal and provides novel perspectives for the protection of reproduction system by functional food of ginseng.
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Affiliation(s)
- Zhao-Bo Luo
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Jilin, China
| | - Mei-Fu Xuan
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Jilin, China
| | - Sheng-Zhong Han
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Jilin, China
| | - Zhou-Yan Li
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Jilin, China
| | - Nasar Khan
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Jilin, China
| | - Biao-Hu Quan
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Jilin, China
| | - Xi-Jun Yin
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Jilin, China
| | - Jin-Dan Kang
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Jilin, China
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13
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Han SZ, Li ZY, Paek HJ, Choe HM, Yin XJ, Quan BH. Reproduction traits of heterozygous myostatin knockout sows crossbred with homozygous myostatin knockout boars. Reprod Domest Anim 2020; 56:26-33. [PMID: 33075164 DOI: 10.1111/rda.13845] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 10/15/2020] [Indexed: 12/26/2022]
Abstract
Few studies exist on homozygous myostatin gene mutant (MSTN-/- ) pigs, especially on their reproductive ability. We have previously shown that semen quality of homozygous MSTN-/- boars is comparable to that of wild type (WT). However, no data exist on the reproductive ability of heterozygous MSTN gene mutant (MSTN+/ - ) sows. The present study highlights showed that the heterozygous MSTN+/ - sows have delayed pubertal age than WT sows (255.80 ± 6.79 versus 191.10 ± 3.42, respectively). The number of services per pregnancy of heterozygous MSTN+/ - sows is significantly higher than that of WT sows (3.33 ± 0.43 versus 1.60 ± 0.25, respectively). Moreover, although heterozygous MSTN+/ - sows have natural reproduction ability, their litter size was significantly lower than that of WT sows (7.75 ± 0.44 versus 14.25 ± 0.60, respectively). Offsprings generated from heterozygous MSTN+/ - sow and homozygous MSTN-/- boar were genotyped with the PCR and sequencing method to detect myostatin mutation and to identify whether the piglets are homozygous MSTN-/- or heterozygous MSTN+/ - . The proportion of homozygous MSTN-/- piglets was significantly lower than that of heterozygous MSTN+/ - piglets (2.50 ± 0.35 versus 5.25 ± 0.60, respectively). Furthermore, none of the sows presented dystocia, and the phenotype of heterozygous MSTN+/ - piglets was normal. However, 10% homozygous MSTN-/- piglets died of dyspnoea within 2 hr after birth, 60% of homozygous MSTN-/- piglets showed large tongues, and 50% had umbilical hernias. In summary, this study for the first time reports the reproduction traits of heterozygous MSTN+/ - sows crossbred with homozygous MSTN-/- boars. This study will pave the way in a new direction for the breeding and development of super lean meat varieties in the future.
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Affiliation(s)
- Sheng-Zhong Han
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, China
| | - Zhou-Yan Li
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, China
| | - Hyo-Jin Paek
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, China
| | - Hak-Myong Choe
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, China
| | - Xi-Jun Yin
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, China
| | - Biao-Hu Quan
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, China
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14
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Xuan MF, Luo ZB, Wang JX, Guo Q, Han SZ, Jin SS, Kang JD, Yin XJ. Shift from slow- to fast-twitch muscle fibres in skeletal muscle of newborn heterozygous and homozygous myostatin-knockout piglets. Reprod Fertil Dev 2020; 31:1628-1636. [PMID: 31104696 DOI: 10.1071/rd19103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 04/17/2019] [Indexed: 12/20/2022] Open
Abstract
Myostatin (MSTN) is a member of the transforming growth factor-β superfamily that negatively regulates skeletal muscle development. A lack of MSTN induces muscle hypertrophy and increases formation of fast-twitch (Type II) muscle fibres. This study investigated muscle development in newborn heterozygous (MSTN+/-) and homozygous (MSTN-/-) MSTN-knockout piglets. Detailed morphological and gene and protein expression analyses were performed of the biceps femoris, semitendinosus and diaphragm of MSTN+/-, MSTN-/- and wild-type (WT) piglets. Haematoxylin-eosin staining revealed that the cross-sectional area of muscle fibres was significantly larger in MSTN-knockout than WT piglets. ATPase staining demonstrated that the percentage of Type IIb and IIa muscle fibres was significantly higher in MSTN-/- and MSTN+/- piglets respectively than in WT piglets. Western blotting showed that protein expression of myosin heavy chain-I was reduced in muscles of MSTN-knockout piglets. Quantitative reverse transcription-polymerase chain reaction revealed that, compared with WT piglets, myogenic differentiation factor (MyoD) mRNA expression in muscles was 1.3- to 2-fold higher in MSTN+/- piglets and 1.8- to 3.5-fold higher MSTN-/- piglets (P<0.05 and P<0.01 respectively). However, expression of myocyte enhancer factor 2C (MEF2C) mRNA in muscles was significantly lower in MSTN+/- than WT piglets (P<0.05). MSTN plays an important role in skeletal muscle development and regulates muscle fibre type by modulating the gene expression of MyoD and MEF2C in newborn piglets.
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Affiliation(s)
- Mei-Fu Xuan
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin 133002, China; and Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin 133002, China
| | - Zhao-Bo Luo
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin 133002, China; and Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin 133002, China
| | - Jun-Xia Wang
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin 133002, China; and Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin 133002, China
| | - Qing Guo
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin 133002, China; and Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin 133002, China
| | - Sheng-Zhong Han
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin 133002, China; and Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin 133002, China
| | - Song-Shan Jin
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin 133002, China; and Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin 133002, China
| | - Jin-Dan Kang
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin 133002, China; and Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin 133002, China; and Corresponding authors. Emails: ;
| | - Xi-Jun Yin
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin 133002, China; and Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin 133002, China; and Corresponding authors. Emails: ;
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15
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Luo ZB, Rahman SU, Xuan MF, Han SZ, Li ZY, Yin XJ, Kang JD. The protective role of ginsenoside compound K in porcine oocyte meiotic maturation failed caused by benzo(a)pyrene during in vitro maturation. Theriogenology 2020; 157:96-109. [PMID: 32810794 DOI: 10.1016/j.theriogenology.2020.07.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 07/03/2020] [Accepted: 07/07/2020] [Indexed: 11/27/2022]
Abstract
Benzo(a)pyrene (BaP) is a pollutant and carcinogen derived from air pollution. It causes serious damage to reproductive system, especially ovary. Ginseng is always used in food and traditional medicine as a nutraceuticals or herbal medicine. Ginsenoside compound K (CK) is a major bioactive ingredient of ginseng, that shows very specific anti-apoptosis, anti-oxidant, and anti-inflammatory activities and thus, it protects cells from damage. The aim of this study was to investigate the effects of CK on the BaP-induced inhibition of the in vitro maturation of porcine oocytes and their subsequent embryonic development capacity. We found that supplementation with 10 μg mL-1 CK during in vitro maturation significantly increased maturation rate (P < 0.05) and the expression level of related genes after damage induced by 40 μM BaP treatment. In addition, reactive oxygen species (ROS) levels significantly decreased and ATP content and mitochondrial membrane potential (MMP) increased after CK supplementation (P < 0.05). The competence for embryonic development was improved by the induction of pluripotency gene expression and the inhibition of apoptosis after CK supplementation of BaP-treated oocytes. Supplementation with 10 μg mL-1 CK improved porcine oocyte maturation and subsequent embryonic development of parthenogenetic activation (33.01 vs. 20.92, P < 0.05) and in vitro fertilization (24.01 vs. 16.52, P < 0.05) by increasing antioxidant activity and improving mitochondrial function after BaP-induced damage.
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Affiliation(s)
- Zhao-Bo Luo
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Saeed Ur Rahman
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Mei-Fu Xuan
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Sheng-Zhong Han
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Zhou-Yan Li
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China
| | - Xi-Jun Yin
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China.
| | - Jin-Dan Kang
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, 133002, China.
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16
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Guo Q, Xuan MF, Luo ZB, Wang JX, Han SZ, Ri MH, Choe YG, Hwang KM, Yin XJ, Kang JD. Baicalin improves the in vitro developmental capacity of pig embryos by inhibiting apoptosis, regulating mitochondrial activity and activating sonic hedgehog signaling. Mol Hum Reprod 2020; 25:538-549. [PMID: 31553448 DOI: 10.1093/molehr/gaz036] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/05/2019] [Indexed: 02/07/2023] Open
Abstract
Baicalin, a traditional Chinese medicinal monomer whose chemical structure is known, can be used to treat female infertility. However, the effect of baicalin on embryonic development is unknown. This study investigated the effects of baicalin on in vitro development of parthenogenetically activated (PA) and in vitro fertilized (IVF) pig embryos and the underlying mechanisms involved. Treatment with 0.1 μg/ml baicalin significantly improved (P < 0.05) the in vitro developmental capacity of PA pig embryos by reducing the reactive oxygen species (ROS) levels and apoptosis and increasing the mitochondrial membrane potential (ΔΨm) and ATP level. mRNA and protein expression of sonic hedgehog (SHH) and GLI1, which are related to the SHH signaling pathway, in PA pig embryos at the 2-cell stage, were significantly higher in the baicalin-treated group than in the control group. To confirm that the SHH signaling pathway is involved in the mechanism by which baicalin improves embryonic development, we treated embryos with baicalin in the absence or presence of cyclopamine (Cy), an inhibitor of this pathway. Cy abolished the effects of baicalin on in vitro embryonic development. In conclusion, baicalin improves the in vitro developmental capacity of PA and IVF pig embryos by inhibiting ROS production and apoptosis, regulating mitochondrial activity and activating SHH signaling.
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Affiliation(s)
- Qing Guo
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Mei-Fu Xuan
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Zhao-Bo Luo
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Jun-Xia Wang
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Sheng-Zhong Han
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Myong-Hak Ri
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Yong-Gyu Choe
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Kyung-Min Hwang
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Xi-Jun Yin
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Jin-Dan Kang
- Department of Animal Science, Agricultural College, Yanbian University, Yanji, Jilin, China.,Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
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17
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Luo ZB, Luo QR, Xuan MF, Han SZ, Wang JX, Guo Q, Choe YG, Jin SS, Kang JD, Yin XJ. Comparison of internal organs between myostatin mutant and wild-type piglets. J Sci Food Agric 2019; 99:6788-6795. [PMID: 31368537 DOI: 10.1002/jsfa.9962] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 04/19/2019] [Revised: 07/22/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Myostatin (MSTN) negatively regulates skeletal muscle development; however, its functions in internal organs have not been thoroughly investigated. Here, we compared the morphological, molecular, and biological characteristics of the heart, liver, spleen, lungs, kidneys, and tongue of homozygous MSTN mutant (MSTN-/- ), heterozygous MSTN mutant (MSTN+/- ), and wild-type (WT) piglets. RESULTS The heart and liver were lighter in MSTN-/- piglets than in MSTN+/- piglets, while the tongue was heavier in MSTN-/- piglets than in WT piglets (P < 0.05). Furthermore, the tongue was longer in MSTN-/- piglets than in WT piglets, and myofibers of the tongue were significantly larger in the former piglets than in the latter ones (P < 0.01). mRNA expression of MSTN in all organs was significantly lower in MSTN-/- and MSTN+/- piglets than in WT piglets (P < 0.05). Meanwhile, mRNA expression of follistatin, which is closely related to MSTN, in the heart and liver was significantly higher in MSTN-/- piglets than in MSTN+/- and WT piglets (P < 0.05). In addition, protein expression of MSTN in the heart, kidneys, and tongue was significantly lower in MSTN-/- piglets than in WT piglets (P < 0.01). CONCLUSION These results suggest that MSTN is widely expressed and has marked effects in multiple internal organs. Myostatin has crucial functions in regulating internal organ size, especially the tongue. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Zhao-Bo Luo
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Qi-Rong Luo
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Mei-Fu Xuan
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Sheng-Zhong Han
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Jun-Xia Wang
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Qing Guo
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Yong-Gyu Choe
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Song-Shan Jin
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Jin-Dan Kang
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
| | - Xi-Jun Yin
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, Jilin, China
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Yan J, Liu HJ, Li H, Chen L, Bian YQ, Zhao B, Han HX, Han SZ, Han LR, Wang DW, Yang XF. Circulating periostin levels increase in association with bone density loss and healing progression during the early phase of hip fracture in Chinese older women. Osteoporos Int 2017; 28:2335-2341. [PMID: 28382553 DOI: 10.1007/s00198-017-4034-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 03/30/2017] [Indexed: 11/26/2022]
Abstract
UNLABELLED The present study shows that hip fracture women had higher serum periostin (sPostn) levels. The elevation of sPostn is associated with bone density loss, yet fracture itself may even increase sPostn levels during early healing phase. INTRODUCTION The study aims to quantify the associations of sPostn levels with bone density loss and the possible effect on the fracture healing. METHODS This study enrolled 261 older women with osteoporotic hip fracture and 106 age-matched women without fracture serving as controls. Clinical features, bone mineral density (BMD), and bone turnover markers including sPostn level were measured after fracture within 2 days. Follow-up sPostn levels during 1 year after 2 days were available for 128 patients. RESULTS Initial levels of sPostn after fracture were significantly higher in patients than controls. sPostn was correlated with BMD of femoral neck (r = -0.529, P < 0.001), β-isomerized C-terminal crosslinking of type I collagen (β-CTX) (r = 0.403, P = 0.008), and N-terminal procollagen of type I collagen (PINP) (r = 0.236, P = 0.042) in the entire cohort. After multivariate analysis, sPostn remained as an independent risk factor for femoral neck BMD, which explained 19.1% of the variance in BMD. sPostn sampled within 7 days after fracture were acutely increasing from day 2 and then decreased and maintained at slightly high levels at 360 days. The percentage changes of sPostn positively correlated with the variation in β-CTX (r = 0.396, P = 0.002) and PINP (r = 0.180, P = 0.033) at day 7 after fracture. CONCLUSIONS High sPostn levels were an independent predictor of femoral neck BMD in older women presenting with an acute hip fracture. Increased sPostn levels during early healing phase may imply that Postn play a role in bone repair.
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Affiliation(s)
- J Yan
- Department of Orthopaedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - H J Liu
- Department of Endocrinology, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - H Li
- Department of Orthopaedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - L Chen
- Department of Orthopaedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Y Q Bian
- Department of Orthopaedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - B Zhao
- Department of Orthopaedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - H X Han
- Second Department of Clinical Medicine, Medical University of Anhui, Hefei, Anhui, China
| | - S Z Han
- Department of Orthopaedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - L R Han
- Department of Orthopaedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China.
| | - D W Wang
- Department of Orthopaedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China.
| | - X F Yang
- Department of Orthopaedic Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China
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Guo XH, Sun YF, Han SZ, Miao J, Cui M, Wang JB. Continuous blood purification in children with severe sepsis. J BIOL REG HOMEOS AG 2017; 31:389-394. [PMID: 28685542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study aims to analyse the clinical effects of continuous blood purification (CBP) in children with severe sepsis to form a basis for CBP application in this context. One hundred and twenty children with severe sepsis treated in Binzhou Peoples Hospital, Shandong, China, from June 2013 to June 2014 were divided into two groups, a treatment and a control group, depending on parental preference. The control group was treated conventionally, and the treatment group underwent CBP in addition to conventional therapy. Cardiovascular and respiratory parameters were measured on admission and after 72 h. This study also assayed interleukin (IL)-8 and tumour necrosis factor (TNF)-α levels, and monitored clinical outcomes and prognosis. The cardiovascular and respiratory parameters of the treatment group improved to a significantly greater extent than did those of the control group (all P less than 0.05). After treatment, the levels of IL-8, IL-6, IL-10, and TNF-α declined in both groups, but more so in the treatment group (all P<0.05). The white blood cell count and C-reactive protein level fell more in the treatment than control group, with statistical significance (both P less than 0.05). CBP remarkably improved the cardiovascular and respiratory functions of children with severe sepsis, probably by eliminating factors mediating inflammation.
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Affiliation(s)
- X H Guo
- Department of Pediatrics, Binzhou Peoples Hospital, Bingzhou, China
| | - Y F Sun
- Department of Oncology, Binzhou Peoples Hospital, Bingzhou, China
| | - S Z Han
- Department of Pediatrics, Binzhou Peoples Hospital, Bingzhou, China
| | - J Miao
- Department of Pediatrics, Binzhou Peoples Hospital, Bingzhou, China
| | - M Cui
- Department of Pediatrics, Binzhou Peoples Hospital, Bingzhou, China
| | - J B Wang
- Department of Pediatrics, Binzhou Peoples Hospital, Bingzhou, China
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20
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Guo XH, Sun YF, Cui M, Wang JB, Han SZ, Miao J. Analysis of uridine diphosphate glucuronosyl transferase 1A1 gene mutations in neonates with unconjugated hyperbilirubinemia. Genet Mol Res 2016; 15:gmr8373. [PMID: 27323053 DOI: 10.4238/gmr.15028373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study was carried out to analyze uridine diphosphate (UDP)-glucuronosyltransferase 1A1 (UGT1A1) gene mutations in neonates with unconjugated hyperbilirubinemia, from two different ethnic groups. Polymerase chain reaction and gene sequencing were used to analyze the differences in genotypes and allele frequencies of different gene mutations among the ethnic groups; this was followed by checking their correlation with the serum bilirubin level and the occurrence of unconjugated hyperbilirubinemia in neonates. Our results reveal that the UGT1A1 mutant genotype, 211G>A, is distributed differently in the case vs control groups, as well as in the Zhuang vs Han ethnic groups. Moreover, this difference is statistically significant (P < 0.05); the total serum bilirubin (TSB) and unconjugated bilirubin (UCB) levels in patients carrying the single homozygous mutation, 211G>A, were markedly higher than that in patients without the mutation (P < 0.05). Furthermore, the TSB and UCB levels were significantly different between patients carrying single or compound 211G>A heterozygous mutation, (TA)6/7, and 1941C>G/2042C>G heterozygous mutation, and patients without mutation (P > 0.05). Our findings suggest that the 211G>A mutation in the first exon may be a risk factor for unconjugated hyperbilirubinemia in Zhuang and Han neonates. The serum bilirubin levels seem to be affected by the homozygosity or heterozygosity of the UGT1A1 gene mutation; 211G>A homozygous mutation is an important factor that causes a rise in bilirubin in neonates with unconjugated hyperbilirubinemia.
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Affiliation(s)
- X H Guo
- Department of Pediatrics, Binzhou People's Hospital, Binzhou, Shandong, China
| | - Y F Sun
- Department of Oncology, Binzhou People's Hospital, Binzhou, Shandong, China
| | - M Cui
- Department of Pediatrics, Binzhou People's Hospital, Binzhou, Shandong, China
| | - J B Wang
- Department of Pediatrics, Binzhou People's Hospital, Binzhou, Shandong, China
| | - S Z Han
- Department of Pediatrics, Binzhou People's Hospital, Binzhou, Shandong, China
| | - J Miao
- Department of Pediatrics, Binzhou People's Hospital, Binzhou, Shandong, China
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Han LR, Jin CX, Yan J, Han SZ, He XB, Yang XF. Effectiveness of external fixator combined with T-plate internal fixation for the treatment of comminuted distal radius fractures. Genet Mol Res 2015; 14:2912-9. [PMID: 25867441 DOI: 10.4238/2015.march.31.22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study compared the efficacy between external fixator combined with palmar T-plate internal fixation and simple plate internal fixation for the treatment of comminuted distal radius fractures. A total of 61 patients classified as type C according to the AO/ASIF classification underwent surgery for comminuted distal radius fractures. There were 54 and 7 cases of closed and open fractures, respectively. Moreover, 19 patients received an external fixator combined with T-plate internal fixation, and 42 received simple plate internal fixation. All patients were treated successfully during 12-month postoperative follow-up. The follow-up results show that the palmar flexion and dorsiflexion of the wrist, radial height, and palmar angle were significantly better in those treated with the external fixator combined with T-plate compared to those treated with the simple plate only (P < 0.05); however, there were no significant differences in radial-ulnar deviation, wrist range of motion, or wrist function score between groups (P > 0.05). Hence, the effectiveness of external fixator combined with T-plate internal fixation for the treatment of comminuted distal radius fractures was satisfactory. Patients sufficiently recovered wrist, forearm, and hand function. In conclusion, compared to the simple T-plate, the external fixator combined with T-plate internal fixation can reduce the possibility of the postoperative re-shifting of broken bones and keep the distraction of fractures to maintain radial height and prevent radial shortening.
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Affiliation(s)
- L R Han
- Department of Orthopaedics, Liaocheng People's Hospital, Liaocheng, China
| | - C X Jin
- Department of Orthopaedics, Liaocheng People's Hospital, Liaocheng, China
| | - J Yan
- Department of Orthopaedics, Liaocheng People's Hospital, Liaocheng, China
| | - S Z Han
- Department of Orthopaedics, Liaocheng People's Hospital, Liaocheng, China
| | - X B He
- Department of Orthopaedics, Liaocheng People's Hospital, Liaocheng, China
| | - X F Yang
- Department of Orthopaedics, Liaocheng People's Hospital, Liaocheng, China
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Liu SC, Duan WB, Feng J, Han SZ. [Effects of forest gap on tree species regeneration and diversity of mixed broadleaved Korean pine forest in Xiaoxing'an Mountains]. Ying Yong Sheng Tai Xue Bao 2011; 22:1381-1388. [PMID: 21941734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This paper studied the quantitative characteristics of main tree species along a forest gap gradient (gap center-near gap center-gap border) of mixed broadleaved Korean pine forest in Xiaoxing'an Mountains, as well as the effects of forest gap size on the regeneration of the tree species. In forest gap, the density of shrub species was obviously larger than that in non-gap, and the density ratio of the same shrub species in forest gap to in non-gap ranged from 1.08 to 18.15. With the increase of gap size, the regeneration density of tree seedlings increased, and that of sapling I (H > or = 1 m, DBH < or = 2 cm) and sapling II (H > or = 1 m, 2 cm < DBH < or = 5 cm) exhibited multiple peak curve. The overall regeneration density of shrubs in forest gaps varied mainly with the amounts of tree seedlings and sapling I. The mean height, mean basal diameter, species density, and individual density of trees in different locations of forest gaps were all different. From gap center to non-gap, the importance value of tree species seedlings in regeneration layer was ranked in gap center > near gap center > gap border > non-gap, the tree species evenness presented a variation of high-low-high, and the species diversity decreased in the order of early phase gap > mid phase gap > late phase gap.
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Affiliation(s)
- Shao-Chong Liu
- College of Forestry, Northeast Forestry University, Harbin 150040, China.
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Han SZ, Zhang SH, Li R, Zhang WY, Li Y. The common −318C/T polymorphism in the promoter region of CTLA4 gene is associated with reduced risk of ophthalmopathy in Chinese Graves' patients. Int J Immunogenet 2006; 33:281-7. [PMID: 16893393 DOI: 10.1111/j.1744-313x.2006.00614.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Studies in the past have clearly established that CTLA4 is a susceptible gene for Graves' disease (GD). However, association studies between CTLA4 and the risk of developing Graves' ophthalmopathy (GO) in GD patients have shown conflicting results. In this study, associations of five CTLA4 single nucleotide polymorphisms (-1722A/G, -1661A/G, -318C/T, +49G/A, CT60) with GD risk and GO susceptibility in GD patients were investigated in a Chinese population. Our results showed that either +49A/G or CT60 polymorphism was associated with GD susceptibility in the Chinese population. Significant differences in the distribution of the genotypes or alleles evaluated between GD patients with and without clinically evident GO were only found for -318C/T polymorphism (P = 0.03). Multiple logistic regressions revealed that the -318T allele was negatively associated with GO under both additive and dominant genetic models (adjusted OR = 0.56, 95%CI 0.35-0.89, P = 0.014; adjusted OR = 0.51, 95%CI 0.30-0.84, P = 0.009, respectively). Stratification analysis according to gender demonstrated different scenarios concerning the role of the -318T allele in GO risk: a significant protective role for GO was only confirmed in male but not in female GD patients. Haplotype analyses showed that only the haplotypes containing the -318T allele played a protective role in GO. In conclusion, results from this study suggested that the -318T allele might play a protective role in GO susceptibility for GD patients at least in the Chinese population. However, extended analyses with larger sample size should be carried out in patients from different ethnic origins to further verify this association.
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Affiliation(s)
- S Z Han
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Science, Fudan University, Shanghai, China
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Ouchi Y, Han SZ, Kim S, Akishita M, Kozaki K, Toba K, Orimo H. Augmented contractile function and abnormal Ca2+ handling in the aorta of Zucker obese rats with insulin resistance. Diabetes 1996; 45 Suppl 3:S55-8. [PMID: 8674892 DOI: 10.2337/diab.45.3.s55] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
To investigate the role of hyperinsulinemia/insulin resistance in vasomotor tone regulation, we studied the effects of vasoactive substances on tension and intracellular free calcium concentration ([Ca2+]i) of aortic smooth muscle derived from rats that were made hyperinsulinemic by insulin infusion and from Zucker obese rats with insulin resistance. The tension and [Ca2+]i of fura 2-loaded aortic strip preparations without endothelium were simultaneously measured by using a fluorimeter. Ten male Wistar rats received a continuous subcutaneous infusion of insulin (18 nmol x kg(-1) x day(-1)) for 2 weeks with osmotic minipumps (INS group). A control group of 10 rats received vehicle. The plasma immunoreactive insulin concentration in the INS group increased to 930 +/- 54 pmol/l. The increase in [Ca2+]i and tension by KCl and phenylephrine (PE) were lower in the INS group without alteration of the [Ca2+]i-tension relationship. The responses to serotonin (5-HT) in the INS group were similar to those in the control group. In contrast, responses to KCl, PE and 5-HT were markedly enhanced in Zucker obese rats compared with those in Zucker lean rats. The pretreatment of aortic preparations from lean rats with Bay K8644 significantly enhanced the responses to KCl to the level observed in the preparations from obese rats; however, Bay K 8644 failed to affect the responses to KCl in obese rats. These results suggest that enhanced vascular contractile responses to vasoactive substances, possibly due to altered function of the voltage-dependent Ca2+ channel in vascular smooth muscle, may play an important role in the pathogenesis of hypertension in the insulin resistance syndrome.
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Affiliation(s)
- Y Ouchi
- Department of Geriatrics, Faculty of Medicine, University of Tokyo, Japan
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Han SZ, Ouchi Y, Karaki H, Orimo H. Inhibitory effects of insulin on cytosolic Ca2+ level and contraction in the rat aorta. Endothelium-dependent and -independent mechanisms. Circ Res 1995; 77:673-8. [PMID: 7554112 DOI: 10.1161/01.res.77.4.673] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
To determine the mechanism of the inhibitory effect of insulin on vascular tone, contraction was measured simultaneously with endothelial and smooth muscle cytosolic Ca2+ level ([Ca2+]i) in the isolated rat aorta. Insulin (200 mU/mL) increased endothelial [Ca2+]i and decreased resting muscle tone. The removal of endothelium abolished the effects of insulin. In the aorta precontracted with norepinephrine, insulin (3 to 120 mU/mL) induced concentration-dependent inhibition of contraction. The relaxant effect followed the increase in endothelial [Ca2+]i and decrease in smooth muscle [Ca2+]i. The relaxant effect was attenuated by removal of endothelium or by the addition of 10(-5) mol/L NG-monomethyl-L-arginine but not by 10(-5) mol/L indomethacin. In the absence of endothelium, the relaxant effect of insulin followed the decrease in smooth muscle [Ca2+]i. These results suggest that insulin inhibits vascular contraction by dual mechanisms in the isolated rat aorta: (1) Insulin acts on vascular endothelium by increasing endothelial [Ca2+]i and releasing NO, which decreases smooth muscle [Ca2+]i and the Ca2+ sensitivity of the contractile elements. (2) Insulin also directly acts on smooth muscle and decreases smooth muscle [Ca2+]i.
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Affiliation(s)
- S Z Han
- Department of Geriatrics, Faculty of Medicine, University of Tokyo, Japan
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Abstract
BACKGROUND We wished to investigate the possible mechanism of the protective effect of estrogen replacement on coronary atherosclerosis observed in postmenopausal women. METHODS AND RESULTS Cytosolic Ca2+ concentration ([Ca2+]i) and contraction were measured simultaneously in fura 2-loaded porcine coronary arterial strips stimulated by the thromboxane A2 analogue U46619 and high-K+ depolarization in the presence and absence of 17 beta-estradiol. Pretreatment with 17 beta-estradiol (30 nmol/L to 30 mumol/L) inhibited the sustained elevation of [Ca2+]i and the sustained contraction induced by 300 nmol/L U46619. Higher concentrations of 17 beta-estradiol (1 to 100 mumol/L) also inhibited the U46619-induced transient increase in [Ca2+]i and contraction in the absence of extracellular Ca2+. In the strips precontracted by 90 mmol/L K+, 17 beta-estradiol (30 mumol/L) inhibited the increases in [Ca2+]i and contraction to resting levels. In contrast, 30 mumol/L 17 beta-estradiol only partially inhibited the U46619-induced sustained contraction, despite complete inhibition of the sustained increase in [Ca2+]i. Verapamil (10 mumol/L) also strongly inhibited the sustained increase in [Ca2+]i induced by 300 nmol/L U46619, with a partial inhibition of the U46619-induced sustained contraction. A subsequent addition of 30 mumol/L 17 beta-estradiol did not show an additional inhibitory effect on either the [Ca2+]i or the tension after the addition of verapamil. 17 beta-Estradiol (10 mumol/L) also inhibited the increase in [Ca2+]i and the contraction induced by cumulative addition of Ca2+ in the strips pretreated with 90 mmol/L K+. However, 17 beta-estradiol did not change the slope of the [Ca2+]i-tension curves. 17 beta-Estradiol (10 mumol/L) had no effect on the levels of cAMP and cGMP in the coronary strips. CONCLUSIONS 17 beta-Estradiol inhibits the contraction of coronary vascular smooth muscle mainly inhibiting Ca2+ influx without changing Ca2+ sensitivity of contractile elements. The Ca2+ channel blocker-like action of 17 beta-estradiol may explain at least a part of the antiatherosclerotic effect of estrogen.
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Affiliation(s)
- S Z Han
- Department of Geriatrics, Faculty of Medicine, University of Tokyo, Japan
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Orimo H, Han SZ, Tabata RE, Stergiopoulos K, Ouchi Y, Karaki H. Calcium channel blocking substances for prevention of atherosclerosis. Ann N Y Acad Sci 1995; 748:447-60. [PMID: 7695188 DOI: 10.1111/j.1749-6632.1994.tb17341.x] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- H Orimo
- Department of Geriatrics, Faculty of Medicine, University of Tokyo, Japan
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Ishikawa M, Ouchi Y, Han SZ, Akishita M, Kozaki K, Toba K, Namiki A, Yamaguchi T, Orimo H. Parathyroid hormone-related protein reduces cytosolic free Ca2+ level and tension in rat aortic smooth muscle. Eur J Pharmacol 1994; 269:311-7. [PMID: 7895771 DOI: 10.1016/0922-4106(94)90038-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The effect of parathyroid hormone-related protein (PTHrP) on cytosolic free Ca2+ level ([Ca2+]i) and tension in rat aortic smooth muscle was investigated with special reference to the role of production and action of cyclic AMP. Rat aortic spiral strip preparations without endothelium were treated with the acetoxymethyl ester of fura 2, and the ratio of fluorescences (R340/380), an index of [Ca2+]i, emitted from smooth muscle, was measured. The tension of the preparations was simultaneously measured. PTHrP-(1-34) produced concentration-dependent decreases both in the tension and in R340/380 increased by phenylephrine (10(-7) M). These effects were significantly inhibited by pretreatment with either PTHrP-(7-34) (10(-6) M), a PTHrP receptor antagonist, or with Rp diastereomer of adenosine cyclic 3',5'-phosphorothioate (RpcAMPS; 10(-4) M), a cyclic AMP-dependent protein kinase inhibitor. Dibutyryl cyclic AMP (10(-5)-10(-3.5 M) elicited effects similar to those of PTHrP-(1-34). PTHrP-(1-34) was found to significantly elevate aortic cAMP level, measured by specific radioimmunoassay, after 5 min incubation with PTHrP-(1-34). These results suggest that the decrease in [Ca2+]i is involved in the vasodilator action of PTHrP, and that the decreases both in tension and in [Ca2+]i might be attributed to cyclic AMP production stimulated by PTHrP.
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Affiliation(s)
- M Ishikawa
- Department of Geriatrics, Faculty of Medicine, University of Tokyo, Japan
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