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Li CY, Liu J, Zheng QY, Liu N, Huang XL, Wu YY, Yao XF, Tan QY, Huang Y, Hu CH, Xu CL. The effect of the mitochondria-targeted antioxidant Mito-tempo during sperm ultra-rapid freezing. Cryobiology 2024; 114:104860. [PMID: 38340888 DOI: 10.1016/j.cryobiol.2024.104860] [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: 10/10/2023] [Revised: 01/22/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
During the freeze-thaw process, human spermatozoa are susceptible to oxidative stress, which may cause cryodamage and reduce sperm quality. As a novel mitochondria-targeted antioxidant, Mito-tempo has been used for sperm cryopreservation. However, it is currently unknown what role it will play in the process of sperm ultra-rapid freezing. The purpose of this study was to investigate whether Mito-tempo can improve sperm quality during ultra-rapid freezing. In this study, samples with the addition of Mito-tempo (0, 5, 10, 20, and 40 μM) to sperm freezing medium were selected to evaluate the changes in sperm quality, antioxidant capacity and ultrastructure after ultra-rapid freezing. After ultra-rapid freezing, the quality and antioxidant function of the spermatozoa were significantly reduced and the spermatozoa ultrastructure was destroyed. The addition of 10 μM Mito-tempo significantly increased post thaw sperm motility, viability, plasma membrane integrity and mitochondrial membrane potential (P < 0.05). Moreover, the DNA fragmentation index (DFI), ROS levels and MDA content were reduced, and the antioxidant enzyme (CAT and SOD) activities were enhanced in the 10 μM Mito-tempo group (P < 0.05). Moreover, Mito-tempo protected sperm ultrastructure from damage. In conclusion, Mito-tempo improved the quality and antioxidant function of sperm after ultra-rapid freezing while reducing freezing-induced ultrastructural damage.
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Affiliation(s)
- Chun-Yuan Li
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China
| | - Juan Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Qi-Yuan Zheng
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Nian Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Xi-Ling Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Yu-Yin Wu
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | | | - Qing-Ying Tan
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China
| | - Ying Huang
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China
| | - Chuan-Huo Hu
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China.
| | - Chang-Long Xu
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China.
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Jiang HF, Fang F, Liu ZM, Xu CL, Zhao PQ, Fu XL. [Mitochondrial pyruvate carrier deficiency: 3 cases report and literature review]. Zhonghua Er Ke Za Zhi 2023; 61:995-1000. [PMID: 37899339 DOI: 10.3760/cma.j.cn112140-20230803-00074] [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: 10/31/2023]
Abstract
Objective: To analyze the clinical and genetic features of patients with mitochondrial pyruvate carrier deficiency (MPYCD). Methods: This was a case series research. The clinical data, genetic characteristics, and glutamine treatment efficacy of 3 patients diagnosed with MPYCD at the Department of Neurology, Beijing Children's Hospital, Capital Medical University and Department of Pediatrics, Guizhou Provincial People's Hospital, from August 2019 to June 2023 were retrospectively collected. A literature search with "MPC1 gene" "MPC2 gene and" "mitochondrial pyruvate carrier deficiency" as keywords was conducted at the Wanfang Data Knowledge Service Platform, China National Knowledge Infrastructure (CNKI) and PubMed (up to June 2023). Clinical and genetic characteristics of patients with MPYCD were summarized. Results: Case 1 was a 3 years and 11 months old boy, while case 2 was a 4 years and 10 months old boy and case 3 was an 8 years and 9 months old girl. Case 2 and case 3 were siblings from one consanguineous family. All 3 patients presented with general developmental delay, growth failure and elevated serum lactate. Cranial magnetic resonance imaging (MRI) showed subtle bilateral symmetrical T2 signal hyperintensity in basal ganglia and thalamus in case 1, but normal in case 2 and 3. Trio-WES revealed case 1 harboring compound heterozygous missense variants c.208G>A (p.Ala70Thr) and c.290G>A (p.Arg97Gln) in MPC1 gene, while case 2 and 3 revealed a homozygous variant c.290G>A (p.Arg97Gln) in the same gene. All 3 cases were diagnosecl as MPYCD. Clinical symptoms including motor ability, cognition and activity endurance were improved in these 3 patients after taking glutamine for 2 years. A total of 5 articles published in English were reviewed, and no Chinese literature was found. Including these 3 cases, 15 cases were enrolled for analysis. Eleven patients carried MPC1 gene variants and 4 cases carried MPC2 gene variants. Except for 3 cases died during prenatal period, 9 of 12 enrolled born cases were onset before 6 months old. The most common clinical symptoms were mental and motor general developmental delay, microcephaly, growth failure and hypotonia. All patients had elevated blood lactate and pyruvate, but the ratio of lactate/pyruvate was normal. Seven patients performed cranial MRI, 3 exhibited non-specific changes, 2 showed bilateral symmetrical T2 signal hyperintensity in basal ganglia and thalamus, and 3 were normal. A total of 5 MPC1 gene missense variants and 2 MPC2 gene variants were identified in 15 cases. Conclusions: Onset age of patients with MPYCD is usually within 6 months. The main clinical characteristics are developmental delay, microcephaly and growth failure, accompanied by increased serum lactate and pyruvate. Glutamine supplement could lead to clinical improvements.
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Affiliation(s)
- H F Jiang
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - F Fang
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Z M Liu
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - C L Xu
- Department of Neurology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - P Q Zhao
- Department of Pediatrics, Guizhou Provincial People's Hospital, Guiyang 550000, China
| | - X L Fu
- Department of Pediatrics, Guizhou Provincial People's Hospital, Guiyang 550000, China
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Wu LM, Xu CL, Xia XP, Lu GR. Linaclotide combined with polyethylene glycol regimen for bowel preparation in patients with chronic constipation: A prospective randomized controlled study. Shijie Huaren Xiaohua Zazhi 2023; 31:816-821. [DOI: 10.11569/wcjd.v31.i19.816] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 10/08/2023] Open
Abstract
BACKGROUND The standard of bowel preparation sometimes is not met by using the 3 L polyethylene glycol electrolyte (PEG) method in patients with chronic constipation, which significantly impacts the diagnosis of colorectal diseases. Linaclotide can be utilized for the treatment of chronic idiopathic constipation. It is worth investigating whether linaclotide combined with 3 L PEG regimen can further optimize intestinal preparation in patients with chronic constipation.
AIM To evaluate the efficacy and comfort of linaclotide combined with PEG for bowel preparation in patients with chronic constipation by comparing with PEG.
METHODS From July 2021 to December 2022, 120 patients with chronic constipation who underwent colonoscopy at the Department of Gastroenterology, the Second Affiliated Hospital of Wenzhou Medical University were selected as research subjects. Using the random number table method, the patients were randomly divided into either a control group or an observation group. Both groups were given 3 L PEG and methylene silicone oil, and the observation group was additionally given three linaclotide capsules. The score of Boston Bowel Preparation Scale (BBPS), colonoscopy entry time, the detection rate of polyps or adenomas, and the incidence of adverse reactions were compared between two groups. Independent sample t test and χ2 test were used for statistical comparisons.
RESULTS The BBPS scores of the right segment, the middle segment, and the left segment, as well as the BBPS score of the overall bowel were higher in the observation group (P < 0.05). The colonoscopy entry time was shorter in the observation group (P < 0.05). The detection rates of polyps and adenomas (22% [11/50] vs 46% [23/50]; 14% [7/50] vs 32% [16/50]) differed significantly between the control group and observation group (P < 0.05). The incidence of adverse reactions in the observation group was significantly shorter than that of the control group (P < 0.05).
CONCLUSION Compared with the 3 L PEG method, linaclotide combined with 3 L PEG regimen can achieve better bowel preparation effect, reduce the incidence of adverse reactions, and has higher safety, which is worthy of further clinical promotion.
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Affiliation(s)
- Li-Min Wu
- Department of Gastroenterology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Chang-Long Xu
- Department of Gastroenterology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Xuan-Ping Xia
- Department of Gastroenterology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Guang-Rong Lu
- Department of Gastroenterology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
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Gao YQ, Xu CL, Fu HY, Zhu TT, Chu JH. [Clinical significance and pathogenesis analysis of Moesin in multiple myeloma]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:672-675. [PMID: 37803842 PMCID: PMC10520239 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.010] [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] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Indexed: 10/08/2023]
Affiliation(s)
- Y Q Gao
- Institute of Blood and Marrow Transplantation, Medical College of Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Suzhou 215000, China Children's Hospital of Soochow University, Suzhou 215000, China
| | - C L Xu
- Department of Clinical Laboratory, Dongtai Municipal People's Hospital, Dongtai 224200, China
| | - H Y Fu
- Children's Hospital of Soochow University, Suzhou 215000, China
| | - T T Zhu
- Institute of Blood and Marrow Transplantation, Medical College of Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Suzhou 215000, China
| | - J H Chu
- Institute of Blood and Marrow Transplantation, Medical College of Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Suzhou 215000, China
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Yang YC, Shen Y, Wang XD, Jiang Y, Qiu QH, Li J, Yu SQ, Ke X, Liu F, Xu YT, Lou HF, Wang HT, Yu GD, Xu R, Meng J, Meng CD, Sun N, Chen JJ, Zeng M, Xie ZH, Sun YQ, Tang J, Zhao KQ, Zhang WT, Shi ZH, Xu CL, Yang YL, Lu MP, Ye HP, Wei X, Sun B, An YF, Sun YN, Gu YR, Zhang TH, Ba L, Yang QT, Ye J, Xu Y, Li HB. [Expert consensus on the prevention and treatment of adverse reactions in subcutaneous immunotherapy(2023, Chongqing)]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:643-656. [PMID: 37455109 DOI: 10.3760/cma.j.cn115330-20221111-00679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Affiliation(s)
- Y C Yang
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Y Shen
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - X D Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Y Jiang
- Department of Otolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Q H Qiu
- Department of Otolaryngology Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - J Li
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China, Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning 530029, China
| | - S Q Yu
- Department of Otolaryngology Head and Neck Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - X Ke
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - F Liu
- Department of Otolaryngology Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y T Xu
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350004, China
| | - H F Lou
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - H T Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - G D Yu
- Department of Otorhinolaryngology, Affiliated Hospital of Guizhou Medical University, Guiyang 550001, China
| | - R Xu
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China, Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning 530029, China
| | - J Meng
- Department of Otolaryngology Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - C D Meng
- Department of Otolaryngology Head and Neck Surgery, China Japan Union Hospital of Jilin University, Changchun 130033, China
| | - N Sun
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - J J Chen
- Department of Otolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - M Zeng
- Department of Otolaryngology, Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z H Xie
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Y Q Sun
- Department of Otolaryngology, the Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518170, China
| | - J Tang
- Department of Otorhinolaryngology, Affiliated First People's Hospital of Foshan City, Sun Yat-sen University, Foshan 528000, China
| | - K Q Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - W T Zhang
- Department of Otolaryngology Head and Neck Surgery, the Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Z H Shi
- Department of Otolaryngology Head and Neck Surgery and Department of Allergy, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - C L Xu
- Department of Otolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China
| | - Y L Yang
- Department of 1st Otolaryngology, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - M P Lu
- Department of Otolaryngology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H P Ye
- Department of Otolaryngology, Guizhou Province Hospital, Guiyang 550002, China
| | - X Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital, Haikou 570311, China
| | - B Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Y F An
- Department of Otorhinolaryngology Head and Neck Surgery, Shanxi Medical University Affiliated Second Hospital, Taiyuan 030001, China
| | - Y N Sun
- Department of Otolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Y R Gu
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - T H Zhang
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - L Ba
- Department of Otolaryngology Head and Neck Surgery, People's Hospital of Tibet Autonomous Region, Lasa 850000, China
| | - Q T Yang
- Department of Otolaryngology Head and Neck Surgery and Department of Allergy, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - J Ye
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y Xu
- Department of Otolaryngology, Head and Neck Surgery, Renmin Hospital, Wuhan University, Wuhan 430060, China
| | - H B Li
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
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Sun MX, Qiao FX, Xu ZR, Liu YC, Xu CL, Wang HL, Qi ZQ, Liu Y. Aristolochic acid I exposure triggers ovarian dysfunction by activating NLRP3 inflammasome and affecting mitochondrial homeostasis. Free Radic Biol Med 2023; 204:313-324. [PMID: 37201634 DOI: 10.1016/j.freeradbiomed.2023.05.009] [Citation(s) in RCA: 4] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 05/02/2023] [Accepted: 05/10/2023] [Indexed: 05/20/2023]
Abstract
Aristolochic acids are widely distributed in the plants of Aristolochiaceae family and Asarum species. Aristolochic acid I (AAI) is the most frequent compound of aristolochic acids, which can accumulate in the soil, and then contaminates crops and water and enters the human body. Research has shown that AAI affects the reproductive system. However, the mechanism of AAI's effects on the ovaries at the tissue level still needs to be clarified. In this research, we found AAI exposure reduced the body and ovarian growth in mice, decreased the ovarian coefficient, prevented follicular development, and increased atretic follicles. Further experiments showed that AAI upregulated nuclear factor-κB and tumor necrosis factor-α expression, activated the NOD-like receptor protein 3 inflammasome, and led to ovarian inflammation and fibrosis. AAI also affected mitochondrial complex function and the balance between mitochondrial fusion and division. Metabolomic results also showed ovarian inflammation and mitochondrial dysfunction due to AAI exposure. These disruptions reduced the oocyte developmental potential by forming abnormal microtubule organizing centers and expressing abnormal BubR1 to destroy spindle assembly. In summary, AAI exposure triggers ovarian inflammation and fibrosis, affecting the oocyte developmental potential.
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Affiliation(s)
- Ming-Xin Sun
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Feng-Xin Qiao
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Zhi-Ran Xu
- Translational Medicine Research Center, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
| | - Yue-Cen Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Chang-Long Xu
- Reproductive Medical Center of Nanning Second People's Hospital, Nanning, Guangxi, 530031, China
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zhong-Quan Qi
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
| | - Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
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Qiao FX, Sun MX, Xu ZR, Liu YC, Chen YZ, Wang HL, Qi ZQ, Xu CL, Liu Y. Chloroacetonitrile exposure induces endoplasmic reticulum stress and affects spindle assembly in mouse oocytes. Food Chem Toxicol 2023; 176:113736. [PMID: 36940772 DOI: 10.1016/j.fct.2023.113736] [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: 02/03/2023] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 03/23/2023]
Abstract
Chloroacetonitrile (CAN) is a halogenated acetonitrile often produced while disinfecting drinking water. Previous studies have shown that maternal exposure to CAN interferes with fetal development; however, the adverse effects on maternal oocytes remain unknown. In this study, in vitro exposure of mouse oocytes to CAN reduced maturation significantly. Transcriptomics analysis showed that CAN altered the expression of multiple oocyte genes, especially those associated with the protein folding process. CAN exposure induced reactive oxygen species production, accompanied by endoplasmic reticulum (ER) stress and increased glucose regulated protein 78, C/EBP homologous protein and activating transcription factor 6 expression. Moreover, our results indicated that spindle morphology was impaired after CAN exposure. CAN disrupted polo-like kinase 1, pericentrin and p-Aurora A distribution, which may be an origin inducer that disrupts spindle assemble. Furthermore, exposure to CAN in vivo impaired follicular development. Taken together, our findings indicate that CAN exposure induces ER stress and affects spindle assembly in mouse oocytes.
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Affiliation(s)
- Feng-Xin Qiao
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Ming-Xin Sun
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Zhi-Ran Xu
- Translational Medicine Research Center, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
| | - Yue-Cen Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yan-Zhu Chen
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zhong-Quan Qi
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Chang-Long Xu
- Reproductive Medical Center of Nanning Second People's Hospital, Nanning, Guangxi, 530031, China.
| | - Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
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Zheng QY, Lu QF, Liu J, Liu N, Huang XL, Huang F, Hu CH, Xu CL. Effect of MnTBAP on sperm ultra-rapid freezing and its proteomics study. Cryobiology 2023:S0011-2240(23)00004-4. [PMID: 36642193 DOI: 10.1016/j.cryobiol.2023.01.004] [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: 09/11/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/13/2023]
Abstract
MnTBAP is a new synthetic antioxidant that has been used for the cryopreservation of sperm. However, the exact mechanism of its cryoprotection at the molecular level is largely unknown. Therefore, in this study, normal human semen samples were selected and MnTBAP (0, 5, 10, 20, 40 μM) was added to sperm freezing medium to assess changes in kinetics parameters, apoptosis, reactive oxygen species (ROS), and DNA fragmentation index (DFI) after sperm ultra-rapid freezing. The tandem masstagging (TMT) proteomics technique was used to further investigate the changes in proteins after sperm ultra-rapid freezing. The kinetic parameters of sperm after ultra-rapid freezing and thawing were significantly reduced and apoptosis, ROS production and DFI were significantly increased. The addition of 40 μM MnTBAP improved the kinetic parameters, while it reduced apoptosis, ROS production, and DFI of sperm after ultra-rapid freezing and thawing (P < 0.05). Compared with the fresh semen, 1978 differential proteins were identified in the frozen-thawed sperm without MnTBAP and 1888 differential proteins were identified in the frozen-thawed sperm with MnTBAP (40 μM) added. The proteins affected during ultra-rapid freezing were mainly related to sperm metabolism, flagellar structure motility, apoptosis, intracellular signaling, capacitation and fertilization, while the addition of MnTBAP reduced the alterations of these proteins.
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Affiliation(s)
- Qi-Yuan Zheng
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Qing-Fang Lu
- Medical College, Guangxi University, Nanning, China
| | - Juan Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Nian Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xi-Ling Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Fang Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Chuan-Huo Hu
- College of Animal Science and Technology, Guangxi University, Nanning, China.
| | - Chang-Long Xu
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China.
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Xu CL, Tan QY, Yang H, Li CY, Wu Z, Ma YF. Melatonin enhances spermatogonia activity through promoting KIAA1429-mediated m 6A deposition to activate the PI3K/AKT signaling. Reprod Biol 2022; 22:100681. [PMID: 35987159 DOI: 10.1016/j.repbio.2022.100681] [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: 04/17/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 11/19/2022]
Abstract
Melatonin is a key neuroendocrine hormone that promotes spermatogenesis and sperm motility, but the underlying mechanisms remains poorly understood. In this study, we aimed to investigate the possible roles of m6A (N6--methyl-adenosine) in mediating melatonin-regulated spermatogonia activity alterations. In this study, mouse-derived GC-1 spermatogonia (spg) cell line was used as the in vitro cellular model. The viability, proliferation rates and apoptosis of spermatogonia were detected via CCK-8, Edu staining and flow cytometry respectively. Total m6A level was quantitated by dot blot, while mRNA and proteins contents in spermatogonia were measured by qRT-PCR and western blot respectively. Differentially expressed mRNAs were characterized by deep RNA sequencing method. Results showed that melatonin significantly promoted viability and proliferation rate while inhibited apoptosis in the GC-1 spg cells. The total m6A levels in GC-1 spg cells were also greatly increased by melatonin treatment, accompanied by remarkable expressional elevation of the m6A writer KIAA1429. Moreover, the regulation of GC-1 spg cell viability, proliferation and apoptosis by melatonin were greatly abrogated by KIAA1429 silencing but effectively strengthened by KIAA1429 overexpression. In addition, KIAA1429 overexpression regulates multiple biological process and signaling pathways in spermatogonia such as the PI3K/AKT signaling. The PI3K inhibitor LY294002 effectively mitigated the regulation of spermatogonia activity by KIAA1429 overexpression under melatonin treatment. Taken together, melatonin promotes spermatogonia activity via enhancing KIAA1429 expression and m6A RNA methylation to activate the downstream PI3K/AKT signaling pathway.
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Affiliation(s)
- Chang-Long Xu
- Department of Reproductive Medical Center, Nanning Second People Hospital, Nanning 530031, China; National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-targeting Theranostics, Guangxi Medical University, Nanning, Guangxi, 530021, China.
| | - Qing-Ying Tan
- Department of Reproductive Medical Center, Nanning Second People Hospital, Nanning 530031, China.
| | - Hua Yang
- Department of Reproductive Medical Center, Nanning Second People Hospital, Nanning 530031, China
| | - Chun-Yuan Li
- Department of Reproductive Medical Center, Nanning Second People Hospital, Nanning 530031, China
| | - Zhuo Wu
- Department of Reproductive Medical Center, Nanning Second People Hospital, Nanning 530031, China
| | - Ya-Feng Ma
- Department of Obstetrics and Gynecology, Wuxiang Hospital of Nanning Second People Hospital, Nanning 530031,China
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10
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Zheng B, Pan B, Xu S, Xu Z, Lu G, Wang F, Fang B, Xu C. Detection of inflammatory bowel disease (IBD)-associated microRNAs by two color DNA-templated silver nanoclusters fluorescent probes. Spectrochim Acta A Mol Biomol Spectrosc 2022; 276:121185. [PMID: 35395459 DOI: 10.1016/j.saa.2022.121185] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/28/2022] [Accepted: 03/22/2022] [Indexed: 12/16/2022]
Abstract
Researches demonstrated that circulating miRNAs could be used as novel diagnostic and prognostic potential markers for patients with inflammatory bowel diseases (IBD). It is of great significance in clinical to develop rapid and specific detection methods for miRNAs. Herein, we established a fluorescent probe for ulcerative colitis (UC) activity-associated two serum biomarkers (miR-23a and miR-223) simultaneous detection, which used multi-color fluorescent DNA-stabilized silver nanoclusters (DNA-AgNC) illuminated by a close guanine (G)-rich sequence as a signal transducer and two split DNA probes as recognition units. In principle, the two DNA probe sequences containing AgNC nucleation sequence and G-rich sequence respectively, formed a ternary complex when in the presence of target miRNA through base pairing, so as to induce enhancement of fluorescence emission of AgNC by shortening the distance from G-rich sequence. The combined probes for miR-23a and miR-223 detection generated increased fluorescence signals at 460 nm ex/545 nm em and at 560 nm ex/630 nm em, respectively. With this technique, we successfully quantified the two target miRNAs with high selectivity. Furthermore, the potential clinic applicability of this method was verified by testing the spiked standard miRNAs in human serum. Thus, this one-step, low-cost, and homogenous method offers a great opportunity for disease-associated multiplex miRNAs simultaneous detection.
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Affiliation(s)
- Bo Zheng
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Binhui Pan
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China; The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Sheng Xu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China; The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Zhihua Xu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China; The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Guangrong Lu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - FangYan Wang
- Department of Pathophysiology, School of Basic Medicine Science, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Biyun Fang
- School of Basic Medical Sciences, Xi'an Key Laboratory of Immune Related Diseases, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.
| | - ChangLong Xu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
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11
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Dai ZB, Ren XL, Xue YL, Tian Y, He BB, Xu CL, Yang B. Association of Dietary Intake and Biomarker of α-Linolenic Acid With Incident Colorectal Cancer: A Dose-Response Meta-Analysis of Prospective Cohort Studies. Front Nutr 2022; 9:948604. [PMID: 35873423 PMCID: PMC9301188 DOI: 10.3389/fnut.2022.948604] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 06/14/2022] [Indexed: 12/13/2022] Open
Abstract
Background and Objective There is keen interest in better understanding the impacts of alpha-linolenic acid (ALA), a plant-derived n-3 fatty acid, in ameliorating the development of cancer; however, results of several prospective cohorts present an inconsistent association between ALA intake and the incident colorectal cancer (CRC). We aimed to investigate the summary association of dietary intake and biomarkers of ALA with CRC risk based on the prospective cohorts. Methods Pertinent prospective cohorts were identified in Cochrane Library, PubMed, and EMBASE from inception to February 2022. Study-specific risk ratios (RRs) with 95% confidence intervals (CIs) for comparing the top with the bottom quartiles of ALA levels were combined using a random-effects model. Nonlinear dose-response relationships of ALA levels in diet and blood with CRC risk were assessed using the restricted cubic spline models, respectively. Results Over the duration of follow-up with a median of 9.3 years ranging from 1 to 28 years, 12,239 CRC cases occurred among 861,725 participants from 15 cohorts (11 studies on diet and 5 studies on biomarkers including 4 on blood and 1 on adipose tissue). The summary RR was 1.03 (95% CI: 0.97, 1.10; I2: 0.00%) for dietary intake and 0.83 (95% CI: 0.69, 0.99; I2: 0.00%) for biomarker. Each 0.1% increase in the levels of ALA in blood was associated with a 10% reduction in risk of CRC (summary RR: 0.90, 95% CI: 0.80, 0.99; I2: 38.60%), whereas no significant dose-response association was found between dietary intake of ALA and the incident CRC (p for non-linearity = 0.18; p for linearity = 0.24). Conclusions Blood levels of ALA were inversely and linearly associated with the risk of CRC, which suggested that increased intake of ALA to improve circulating levels was beneficial for CRC prevention.
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Affiliation(s)
- Ze-Bin Dai
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Lipids Medicine, Wenzhou Medical University, Wenzhou, China
| | - Xiao-Li Ren
- Institute of Lipids Medicine, Wenzhou Medical University, Wenzhou, China
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, China
| | - Yi-Lang Xue
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ya Tian
- Institute of Lipids Medicine, Wenzhou Medical University, Wenzhou, China
| | - Bing-Bing He
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chang-Long Xu
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- Chang-Long Xu
| | - Bo Yang
- Institute of Lipids Medicine, Wenzhou Medical University, Wenzhou, China
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, China
- *Correspondence: Bo Yang
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12
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Sun X, Yang KL, Zheng QY, Lu QF, Qi ZQ, Liu Y, Xu CL. Effects of different sperm sources on clinical outcomes in intracytoplasmic sperm injection cycles. Andrologia 2022; 54:e14438. [PMID: 35585478 DOI: 10.1111/and.14438] [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: 12/17/2021] [Revised: 03/23/2022] [Accepted: 03/30/2022] [Indexed: 11/28/2022] Open
Abstract
The aim was to investigate the influences of different sperm sources on clinical outcome and neonatal outcome of patients with intracytoplasmic sperm injection. We retrospectively analysed patients who underwent intracytoplasmic sperm injection in our reproductive centre from 2011 to 2020. We screened data on assisted reproductive outcomes from four groups of sources: testicular sperm, epididymal sperm, ejaculated sperm and donor sperm for analysis and divided the non-ejaculated group from the ejaculated group to explore their impact on clinical outcomes and neonatal outcomes. A total of 2139 cycles were involved in this study. There were significant differences in fertilisation rate (77.0% vs. 73.6%, p < .001), cleavage rate (97.4% vs. 94.4%, p < .001) and high-quality embryo rate (52.8% vs. 49.9%, p < .001) between the ejaculated and non-ejaculated sperm groups. There were no significant differences amongst the four groups in biochemical pregnancy rate, clinical pregnancy rate, abortion rate, live birth rate, male-female ratio and single-twin ratio. Different sperm sources did not affect the length, weight or physical defects of newborns amongst the groups. Sperm source did not affect pregnancy and neonatal outcomes of intracytoplasmic sperm injection in general.
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Affiliation(s)
- Xue Sun
- Medical College, Guangxi University, Nanning, China
| | - Kai-Lin Yang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Qi-Yuan Zheng
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Qing-Fang Lu
- Medical College, Guangxi University, Nanning, China
| | | | - Yu Liu
- Medical College, Guangxi University, Nanning, China
| | - Chang-Long Xu
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China
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13
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Luo YS, He QK, Sun MX, Qiao FX, Liu YC, Xu CL, Xu ZR, Zhao SC, Wang HL, Qi ZQ, Liu Y. Acrylonitrile exposure triggers ovarian inflammation and decreases oocyte quality probably via mitochondrial dysfunction induced apoptosis in mice. Chem Biol Interact 2022; 360:109934. [DOI: 10.1016/j.cbi.2022.109934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/01/2022] [Accepted: 04/05/2022] [Indexed: 12/18/2022]
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14
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He QK, Xu CL, Li YP, Xu ZR, Luo YS, Zhao SC, Wang HL, Qi ZQ, Liu Y. Captan exposure disrupts ovarian homeostasis and affects oocytes quality via mitochondrial dysfunction induced apoptosis. Chemosphere 2022; 286:131625. [PMID: 34303901 DOI: 10.1016/j.chemosphere.2021.131625] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/23/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
Captan is a non-systematic fungicide widely used in agricultural production, and its residues have been found in the environment and daily diet. Previous studies confirmed that captan exerts several toxic effects on tissues, but its effect on the mammalian female reproductive system is unclear. In current study, we reported that captan affected mouse ovarian homeostasis and disrupted female hormone receptor expression, leading to impaired follicular development. Ovarian follicles from the captan exposure group showed an increased level of inflammation, endoplasmic reticulum stress and apoptosis. In addition, captan exposure disrupted oocyte development. Transcriptomic analysis indicated that captan changed multiple genes expression in oocytes, including autophagy and apoptosis. Further molecular testing showed that captan induced oxidative stress and mitochondrial dysfunction, as indicated by the increased level of reactive oxygen species, disrupted mitochondrial structure and distribution, and depolarized membrane potential. Furthermore, captan triggered DNA damage, autophagy and early apoptosis, as shown by the enhanced levels of γ-H2AX, LC3, and Annexin-V and increased expression of related genes. Taken together, these results indicated that captan exposure impairs ovarian homeostasis and subsequently affects oocyte development.
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Affiliation(s)
- Quan-Kuo He
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Chang-Long Xu
- Reproductive Medical Center of Nanning Second People's Hospital, Nanning, Guangxi, 530031, China
| | - Yan-Ping Li
- College of Life Science and Technology, Guangxi University, Nanning, Guangxi, 530004, China
| | - Zhi-Ran Xu
- Translational Medicine Research Center, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
| | - Yu-Shen Luo
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Si-Cheng Zhao
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen City, Fujian Province, 361102, China
| | - Zhong-Quan Qi
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
| | - Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
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15
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Wei KN, Wang XJ, Zeng ZC, Gu RT, Deng SZ, Jiang J, Xu CL, Li W, Wang HL. Perfluorooctane sulfonate affects mouse oocyte maturation in vitro by promoting oxidative stress and apoptosis induced bymitochondrial dysfunction. Ecotoxicol Environ Saf 2021; 225:112807. [PMID: 34562787 DOI: 10.1016/j.ecoenv.2021.112807] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/15/2021] [Accepted: 09/18/2021] [Indexed: 06/13/2023]
Abstract
Perfluorooctane sulphonate (PFOS), as a surfactant, is widely applied in the agricultural production activities and has become a potential menace to human health. The mechanism of its effect on the maturation of mammalian oocytes is unclear. This study explored the toxic effect of PFOS on mouse oocyte maturation in vitro. The results revealed that PFOS under a concentration of 600 μM could significantly reduce the polar body extrusion rate (PBE) of mouse oocytes and cause symmetrical cell division. Further experiments showed that PFOS resulted in the abnormal cytoskeleton of the oocytes, causing the abnormal spindles and misplaced chromosomes, as well as the impaired dynamics of actin. Moreover, PFOS exposure inhibited the process of oocyte meiosis, which reflected in the slower spindle migration and continuous activation of spindle assembly checkpoint (SAC), then ultimately increased the probability of aneuploidy. Most importantly, PFOS exposure reduced the quality of oocytes, specifically by disrupting the function of mitochondria, inducing cell oxidative stress, and triggering early apoptosis. Furthermore, the level of methylation of histones is additionally influenced. In summary, our findings showed that PFOS exposure interfered with the maturation of mouse oocytes through affecting cytoskeletal dynamics, meiotic progression, oocyte quality, and histone modifications.
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Affiliation(s)
- Kang-Na Wei
- Department of Gynaecology and Obstetrics, Xiang'an Hospital of Xiamen University, Xiamen 361102, Fujian, China; Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen 361102, Fujian, China.
| | - Xin-Jie Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen 361102, Fujian, China.
| | - Zhao-Cheng Zeng
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen 361102, Fujian, China.
| | - Ruo-Ting Gu
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen 361102, Fujian, China
| | - Shu-Zi Deng
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen 361102, Fujian, China; College of Life Science, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China.
| | - Jiang Jiang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen 361102, Fujian, China.
| | - Chang-Long Xu
- The Reproductive Medical Center of Nanning Second People's Hospital, Nanning 530031, Guangxi, China
| | - Wei Li
- Department of Gynaecology and Obstetrics, Xiang'an Hospital of Xiamen University, Xiamen 361102, Fujian, China.
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen 361102, Fujian, China.
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16
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Xu S, Yang SX, Xue ZX, Xu CL, Cai ZZ, Xu CZ. Duodenal ulcer caused by coil wiggle after digital subtraction angiography-guided embolization: A case report. World J Clin Cases 2021; 9:10315-10322. [PMID: 34904105 PMCID: PMC8638030 DOI: 10.12998/wjcc.v9.i33.10315] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 08/08/2021] [Accepted: 09/23/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Acute gastrointestinal bleeding (GIB) is a life-threatening medical emergency with high morbidity and mortality. Transcatheter embolization with endovascular coils under digital subtraction angiography guidance is a common and effective method for the treatment of GIB with high technical success rates. Duodenal ulcers caused by coils wiggled from the branch of the gastroduodenal artery, which is a rare complication, have not previously been reported in a patient with right intrathoracic stomach.
CASE SUMMARY A 62-year-old man had undergone thoracoscopy-assisted radical resection of esophageal cancer and gastroesophageal anastomosis 3 years ago, resulting in right intrathoracic stomach. He was admitted to the hospital 15 mo ago for dizziness and suffered acute GIB during his stay. Interventional surgery was urgently performed to embolize the branch of the gastroduodenal artery with endovascular coils. After 15 mo, the patient was re-admitted with a chief complaint of melena for 2 d, esophagogastroduodenoscopy and abdominal computed tomography revealed that some endovascular coils had migrated into the duodenal bulb, leading to a deep ulcer. Bleeding was controlled after conservative treatment. Seven months later, duodenal balloon dilatation was performed to relieve the stenosis after the removal of a few coils, and the patient was safely discharged with only one coil retained in the duodenum due to difficulties in complete removal and risk of bleeding. Mild melena recurred once during the long-term follow-up.
CONCLUSION Although rare, coil wiggle after interventional therapy requires careful attention, effective precautionary measures, and more secure alternative treatment methods.
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Affiliation(s)
- Sheng Xu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Shou-Xing Yang
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Zhan-Xiong Xue
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Chang-Long Xu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Zhen-Zhai Cai
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Chang-Zhao Xu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
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17
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Sui L, Yan K, Zhang H, Nie J, Yang X, Xu CL, Liang X. Mogroside V Alleviates Oocyte Meiotic Defects and Quality Deterioration in Benzo(a)pyrene-Exposed Mice. Front Pharmacol 2021; 12:722779. [PMID: 34512349 PMCID: PMC8428525 DOI: 10.3389/fphar.2021.722779] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/16/2021] [Indexed: 02/03/2023] Open
Abstract
Accumulating evidence has demonstrated that benzo(a)pyrene (BaP) exposure adversely affects female reproduction, especially oocyte meiotic maturation and subsequent embryo development. Although we previously found that mogroside V (MV), a major bioactive component of S. grosvenorii, can protect oocytes from quality deterioration caused by certain stresses, whether MV can alleviate BaP exposure-mediated oocyte meiotic defects remains unknown. In this study, female mice were exposed to BaP and treated concomitantly with MV by gavage. We found that BaP exposure reduced the oocyte maturation rate and blastocyst formation rate, which was associated with increased abnormalities in spindle formation and chromosome alignment, reduced acetylated tubulin levels, damaged actin polymerization and reduced Juno levels, indicating that BaP exposure results in oocyte nucleic and cytoplasmic damage. Interestingly, MV treatment significantly alleviated all the BaP exposure-mediated defects mentioned above, indicating that MV can protect oocytes from BaP exposure-mediated nucleic and cytoplasmic damage. Additionally, BaP exposure increased intracellular ROS levels, meanwhile induced DNA damage and early apoptosis in oocytes, but MV treatment ameliorated these defective parameters, therefore it is possible that MV restored BaP-mediated oocyte defects by reducing oxidative stress. In summary, our findings demonstrate that MV might alleviate oocyte meiotic defects and quality deterioration in BaP-exposed mice.
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Affiliation(s)
- Lumin Sui
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Ke Yan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Huiting Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Junyu Nie
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xiaogan Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Chang-Long Xu
- Reproductive Medical Center Nanning Second People's Hospital, Nanning, China
| | - Xingwei Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
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18
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Zhao SC, Xu ZR, Xu CL, He QK, Yang GM, Li YP, Luo YS, Wang HL, Qi ZQ, Liu Y. Nickel sulfate exposure induces ovarian inflammation and fibrosis and decreases oocyte quality in mice. Ecotoxicol Environ Saf 2021; 224:112634. [PMID: 34392153 DOI: 10.1016/j.ecoenv.2021.112634] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/18/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
Nickel is a heavy metal element extensively distributed in the environment and widely used in modern life. Divalent nickel is one of the most widespread forms of nickel and has been reported as toxic to various tissues. However, whether exposure to divalent nickel negatively affects ovarian homeostasis and oocyte quality remains unclear. In this study, we found that 3 weeks of nickel sulfate exposure affected body growth and decreased the weight and coefficient of the ovary, and increased atretic follicles exhibiting enhanced apoptosis in granulosa cells. Further studies have found that nickel sulfate triggered ovarian fibrosis and inflammation via transforming growth factor-β1 and nuclear factor-κB pathways, and reduced oocyte development ability. In addition, nickel sulfate increased the level of reactive oxygen species, which induced DNA damage and early apoptosis. Moreover, it was found that nickel sulfate caused damage to the mitochondria showing aberrant morphology, distribution and membrane potential while decreased levels of histone methylation. To summarize, our results indicated that nickel sulfate exposure triggered ovarian fibrosis and inflammation and caused structural and functional disorders of mitochondria in oocytes, which consequently disturbed ovarian homeostasis and follicle development and decreased oocyte quality.
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Affiliation(s)
- Si-Cheng Zhao
- Medical College, Guangxi University, Nanning, Guangxi 530004, China
| | - Zhi-Ran Xu
- Translational Medicine Research Center, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi 530011, China
| | - Chang-Long Xu
- Reproductive Medical Center of Nanning Second People's Hospital, Nanning, Guangxi 530031, China
| | - Quan-Kuo He
- Medical College, Guangxi University, Nanning, Guangxi 530004, China
| | - Guang-Ming Yang
- College of Life Science and Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Yan-Ping Li
- College of Life Science and Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Yu-Shen Luo
- Medical College, Guangxi University, Nanning, Guangxi 530004, China
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Zhong-Quan Qi
- Medical College, Guangxi University, Nanning, Guangxi 530004, China.
| | - Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi 530004, China.
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19
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Deng SZ, Xu CL, Xu ZF, Zhou LY, Xie SJ, Wei KN, Jin YC, Zeng ZC, Yang XJ, Tan SH, Wang HL. Perfluorodecanoic acid induces meiotic defects and deterioration of mice oocytes in vitro. Toxicology 2021; 460:152884. [PMID: 34358620 DOI: 10.1016/j.tox.2021.152884] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/19/2021] [Accepted: 07/30/2021] [Indexed: 11/29/2022]
Abstract
Perfluorodecanoic acid (PFDA) is a member of the perfluoroalkyl substances, which are toxic to organic functions. Recently, it has been found in follicular fluid, seriously interfering with reproduction. Follicular fluid provides the oocyte with necessary resources during the process of oocytes maturation. However, the effects of PFDA on the oocyte need investigation. Our study evaluated the impacts of PFDA on the meiosis and development potential of mouse oocytes by exposing oocytes to PFDA in vitro at 350, 400, and 450 μM concentrations. The results showed that exposure to PFDA resulted in the first meiotic prophase arrest by obstructing the function of the maturation-promoting factor. It also induced the dysfunction of the spindle assembly checkpoint, expedited the progression of the first meiotic process, and increased the risk of aneuploidy. The oocytes treated with PFDA had a broken cytoskeleton which also contributed to meiotic maturation failure. Besides, PFDA exposure caused mitochondria defections, increased the reactive oxygen species level in oocytes, and consequently induced oocyte apoptosis. Moreover, PFDA produced epigenetic modifications in oocytes and increased the frequency of mature oocytes with declined development potential. In summary, our data indicated that PFDA disturbs the meiotic process and induces oocyte quality deterioration.
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Affiliation(s)
- Shu-Zi Deng
- College of Life Science, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, China; Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Chang-Long Xu
- The Reproductive Medical Center of Nanning Second People's Hospital, Nanning, Guangxi, 530031, China
| | - Zhong-Feng Xu
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Li-Ying Zhou
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Shu-Juan Xie
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Kang-Na Wei
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China; Department of Gynaecology and Obstetrics, The Affiliated Xiang-An Hospital of Xiamen University, Xiamen, Fujian, 361102, China
| | - Yuan-Chang Jin
- College of Biology and Agriculture (College of Food Science and Technology), Zunyi Normal College, Zunyi, 563006, China
| | - Zhao-Cheng Zeng
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Xiang-Jun Yang
- Department of Gynaecology and Obstetrics, The Affiliated Zhong-Shan Hospital of Xiamen University, Xiamen, Fujian, 361004, China
| | - Shu-Hua Tan
- College of Life Science, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, China.
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China.
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20
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Huang ZR, Sheng MT, Pan LM, Zhang SZ, Zhu ZL, Wang H, Xu CL, Teng L, He L, Gu C, Yi C, Li JM. [Effects of protein disulfide isomerase on hyperglycemia and hypoxia/reoxygenation injury in H9c2 cardiomyocytes]. Zhonghua Yi Xue Za Zhi 2021; 101:1523-1528. [PMID: 34044521 DOI: 10.3760/cma.j.cn112137-20200926-02724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of protein disulfide isomerase (PDI) in diabetic ischemic heart disease. Methods: We established an in vitro model of high glucose and hypoxia/reoxygenation in H9c2 rat myocardial cells. Cultured cells were divided into four groups: Control, high glucose (HG), hypoxia/reoxygenation (H/R) and HG+H/R. Changes in PDI expression mediated by PDI adenovirus(Ad-PDI) infection and siRNA(PDI-siRNA) transfection in myocardial cells were observed by inverted fluorescence microscopy. We also measured lactate dehydrogenase(LDH) activity and malondialdehyde(MDA) and high molecular weight(HMW)-APN concentrations. PDI, APN, cleaved caspase-3, and glucose regulated protein 78 (Grp78) protein expression were detected. Results: PDI expression was significantly decreased in the HG, H/R and HG+H/R groups compared to the Control group; however, LDH activity[(179.7±10.4) U/L、(218.4±18.4) U/L、(328.2±5.3) U/L vs (91.0±11.0) U/L], MDA concentration[(7.0±0.4) μmol/L、(10.0±1.0) μmol/L、(11.7±1.0) μmol/L vs (4.2±1.8) μmol/L], cleaved caspase-3, and Grp78 expression were increased. Interestingly, APN and HMW-APN expression were decreased [(2.01±0.21) μg/L、(1.64±0.27) μg/L、(1.20±0.14) μg/L vs (2.62±0.12) μg/L, all P<0.05]. Over expression of PDI attenuated high glucose and hypoxia/reoxygenation induced apoptosis and oxidative stress in H9c2 cardiomyocytes(all P<0.05), and simultaneously increased APN and HMW-APN expression [(2.86±0.03) μg/L vs (3.03±0.10) μg/L、(2.06±0.05) μg/L vs (2.31±0.06) μg/L、(1.83±0.07) μg/L vs (1.96±0.11) μg/L、(1.20±0.06) μg/L vs (1.39±0.09) μg/L]. PDI-siRNA transfection increased LDH activity, MDA concentration, and cleaved caspase-3 and Grp78 expression, and decreased APN and HMW-APN expression [(0.75±0.09) μg/L vs (0.59±0.09) μg/L、(0.62±0.04) μg/L vs (0.53±0.05) μg/L、(0.55±0.14) μg/L vs (0.51±0.12) μg/L、(0.48±0.12) μg/L vs (0.35±0.08) μg/L] in response to different treatments in cultured H9c2 cardiomyocytes (all P<0.05). Conclusion: PDI may regulate the expression of APN and HMW-APN, and play an important role in the function of diabetic ischemia-reperfusion cardiomyocytes.
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Affiliation(s)
- Z R Huang
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - M T Sheng
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - L M Pan
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - S Z Zhang
- China Three Gorges University, Yichang 443000, China
| | - Z L Zhu
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - H Wang
- China Three Gorges University, Yichang 443000, China
| | - C L Xu
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - L Teng
- the First College of Clinical Medical Sciences of Three Gorges University/Central People's Hospital of Yichang, Yichang 443000, China
| | - L He
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - C Gu
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - C Yi
- the First College of Clinical Medical Sciences of Three Gorges University/Central People's Hospital of Yichang, Yichang 443000, China
| | - J M Li
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
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21
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Yang SX, Zhou YH, Zhang J, Miao L, Zhong JW, Wang WX, Xu CL, Cai ZZ, Lu GR. Haemorrhagic ileal haemolymphangioma: a case report and review of the literature. J Int Med Res 2021; 49:300060520986677. [PMID: 33528281 PMCID: PMC7871067 DOI: 10.1177/0300060520986677] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We describe herein a 37-year-old woman with a 2-week history of melena who was eventually diagnosed with ileal haemolymphangioma, a rare benign tumour. Local mucosal congestion and swelling were found through single-balloon enteroscopy, which showed an irregular protuberance approximately 10 cm long, located 3.2 m from the Treitz ligament. We performed a laparoscopic-assisted partial resection of the small intestine combined with intestinal adhesiolysis. According to postoperative pathology, the final diagnosis was ileal haemolymphangioma with haemorrhage.
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Affiliation(s)
- Shou-Xing Yang
- Department of Gastroenterology, The Second Affiliated Hospital of 26453Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yu-Hui Zhou
- Department of Gastroenterology, The Second Affiliated Hospital of 26453Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jing Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of 26453Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lei Miao
- Department of Gastroenterology, The Second Affiliated Hospital of 26453Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jing-Wei Zhong
- Department of Gastroenterology, The Second Affiliated Hospital of 26453Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wen-Xing Wang
- Department of Gastroenterology, The Second Affiliated Hospital of 26453Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chang-Long Xu
- Department of Gastroenterology, The Second Affiliated Hospital of 26453Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhen-Zhai Cai
- Department of Gastroenterology, The Second Affiliated Hospital of 26453Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Guang-Rong Lu
- Department of Gastroenterology, The Second Affiliated Hospital of 26453Wenzhou Medical University, Wenzhou, Zhejiang, China
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22
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Xu Y, Xu CL, Xu ZF, Wang XJ, Liang HS, Zeng ZC, Zeng LX, Wei KN, Deng SZ, Xie SJ, Jiang J, Liu YX, Cao YK, Wang HL. Fbf1 regulates mouse oocyte meiosis by influencing Plk1. Theriogenology 2021; 164:74-83. [PMID: 33561696 DOI: 10.1016/j.theriogenology.2021.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 01/05/2021] [Accepted: 01/23/2021] [Indexed: 01/02/2023]
Abstract
Fas binding factor 1 (Fbf1) is one of the distal appendage proteins in the centriole, located at its distal and proximal ends. It influences the duplication and separation of centrosomes, thereby affecting the progression of the cell cycle during mitosis. However, the function of Fbf1 in meiosis has remained unclear. To explore the role of Fbf1 in the in vitro maturation of mouse oocyte, immunofluorescence staining was used to examine the Fbf1 location in the oocyte and their phenotype after protein deletion. Western blot was used to examine the protein abundance. This study showed that mouse oocytes express Fbf1 which locates at the spindle poles and around the microtubules. Through taxol and nocodazole treatment, and microinjection of siRNA, it was demonstrated that Fbf1 had an important role in the spindle assembly and chromosome separation during mouse oocyte meiosis In particular, microinjection of Fbf1-siRNA resulted in severe abnormalities in the spindle and chromosome arrangement, decreased aggregation of microtubules, disrupted the first oocyte meiosis, and the extrusion of the first polar body. Furthermore, in the Fbf1-siRNA group, there was reduced expression of Plk1 and its agglutination at the spindle poles, along with retarded chromosome segregation due to the activation of the spindle assembly checkpoint (SAC) component BubR1. These results indicate that Fbf1 may function in microtubule depolymerization and agglutination, control the microtubule dynamics, spindle assembly and chromosome arrangement and, thus, influence the mouse oocyte meiotic maturation.
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Affiliation(s)
- Ying Xu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Chang-Long Xu
- The Reproductive Medical Center of Nanning Second People's Hospital, Nanning, Guangxi, 530031, China
| | - Zhong-Feng Xu
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Xin-Jie Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Hui-Sheng Liang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China; Department of Gynaecology and Obstetrics, The Affiliated Zhong-Shan Hospital of Xiamen University, Xiamen, Fujian, 361004, China
| | - Zhao-Cheng Zeng
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China; College of Life Sciences, Southwest Forestry University, Kunming, Yunnan, 650224, China
| | - Li-Xin Zeng
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China; Department of Gynaecology and Obstetrics, The Affiliated Xiang'an Hospital of Xiamen University, Xiamen, Fujian, 361102, China
| | - Kang-Na Wei
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China; Department of Gynaecology and Obstetrics, The Affiliated Xiang'an Hospital of Xiamen University, Xiamen, Fujian, 361102, China
| | - Shu-Zi Deng
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China; College of Life Science, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, China
| | - Shu-Juan Xie
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China; Department of Obstetrics and Gynecology, 900 Hospital of the Joint Logistics Team, Dongfang Affiliated Hospital of Xiamen University, Fuzhou, Fujian, 350025, China
| | - Jiang Jiang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Yu-Xin Liu
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Yun-Kao Cao
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China.
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China.
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23
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Yan K, Cui K, Nie J, Zhang H, Sui L, Zhang H, Yang X, Xu CL, Liang X. Mogroside V Protects Porcine Oocytes From Lipopolysaccharide-Induced Meiotic Defects. Front Cell Dev Biol 2021; 9:639691. [PMID: 33763421 PMCID: PMC7982822 DOI: 10.3389/fcell.2021.639691] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/01/2021] [Indexed: 12/19/2022] Open
Abstract
Accumulating evidence has demonstrated that lipopolysaccharide (LPS) compromises female reproduction, especially oocyte maturation and competence. However, methods to protect oocyte quality from LPS-induced deterioration remain largely unexplored. We previously found that mogroside V (MV) can promote oocyte maturation and embryonic development. However, whether MV can alleviate the adverse effects of LPS exposure on oocyte maturation is unclear. Thus, in this study, we used porcine oocytes as a model to explore the effects of MV administration on LPS-induced oocyte meiotic defects. Our findings show that supplementation with MV protected oocytes from the LPS-mediated reduction in the meiotic maturation rate and the subsequent blastocyst formation rate. In addition, MV alleviated the abnormalities in spindle formation and chromosome alignment, decrease in α-tubulin acetylation levels, the disruption of actin polymerization, and the reductions in mitochondrial contents and lipid droplet contents caused by LPS exposure. Meanwhile, LPS reduced m6A levels in oocytes, but MV restored these epigenetic modifications. Furthermore, MV reduced reactive oxygen species (ROS) levels and early apoptosis in oocytes exposed to LPS. In summary, our study demonstrates that MV can protect oocytes from LPS-induced meiotic defects in part by reducing oxidative stress and maintaining m6A levels.
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Affiliation(s)
- Ke Yan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Kexin Cui
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Junyu Nie
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Hengye Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Lumin Sui
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Huiting Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xiaogan Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Chang-Long Xu
- Reproductive Medical Center of Nanning Second People's Hospital, Nanning, China
| | - Xingwei Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
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24
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Liu Y, He QK, Xu ZR, Xu CL, Zhao SC, Luo YS, Sun X, Qi ZQ, Wang HL. Thiamethoxam Exposure Induces Endoplasmic Reticulum Stress and Affects Ovarian Function and Oocyte Development in Mice. J Agric Food Chem 2021; 69:1942-1952. [PMID: 33533595 DOI: 10.1021/acs.jafc.0c06340] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Neonicotinoids are the most widely used insecticides in modern agriculture, and their residues have been found in the environment and food. Previous studies reported that neonicotinoids exert toxic effects in various tissues, but whether they interfered with the female reproductive process remains unknown. In our present research, thiamethoxam was selected as a representative neonicotinoid to establish a mouse toxicity model with gavage. We found that thiamethoxam decreased the ovarian coefficient and disrupted the expression of female hormone receptors, subsequently affecting follicle development. Ovarian granulosa cells from the thiamethoxam exposure group underwent a high level of apoptosis. Using transcriptome analysis, we showed that thiamethoxam exposure altered the expression of multiple oocyte genes related to inflammation, apoptosis, and endoplasmic reticulum stress. Thiamethoxam also adversely affected oocyte and embryo development. Western blotting and fluorescence staining results confirmed that thiamethoxam affected the integrity of DNA, triggered apoptosis, promoted oxidative stress and endoplasmic reticulum stress, and impaired mitochondrial function. Collectively, our results indicated that thiamethoxam exposure disrupts ovarian homeostasis and decreases oocyte quality via endoplasmic reticulum stress and apoptosis induction.
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Affiliation(s)
- Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Quan-Kuo He
- Medical College, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Zhi-Ran Xu
- Center for Translational Medicine Research, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi 530011, People's Republic of China
| | - Chang-Long Xu
- Reproductive Medical Center of Nanning Second People's Hospital, Nanning, Guangxi 530031, People's Republic of China
| | - Si-Cheng Zhao
- Medical College, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Yu-Shen Luo
- Medical College, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Xue Sun
- Medical College, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Zhong-Quan Qi
- Medical College, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian 361102, People's Republic of China
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25
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Li N, Yang H, Li CY, Zou Y, Deng ZH, Tan QY, Qiu Y, Xu CL. [Analysis of pregnancy outcome of single and double blastocysts in the freeze-thaw cycle]. Zhonghua Fu Chan Ke Za Zhi 2020; 55:778-783. [PMID: 33228349 DOI: 10.3760/cma.j.cn112141-20200404-00297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the clinical outcomes of one and two blastocysts in the freeze-thaw transplantation cycle. Methods: Totally 3 675 cycles of frozen thawed blastocyst transplantation in Reproductive Medical Center of the Second Nanning People's Hospital from January 2012 to December 2016 were analyzed retrospectively. According to the quantity and quality of transferred blastocysts, all the patient were divided into two groups: (1) one embryo group, including the single excellent group (one high quality blastocyst) and the single non excellent group (one non high quality blastocyst); (2) two embryo groups, including the double excellent group (two high quality blastocysts), the one excellent and one non excellent group (one high quality blastocyst+one non high quality blastocyst), and the two non excellent group (two non high quality blastocysts were transplanted). Then the patients were divided into subgroups according to their ages: less than 35 years old, 35-40 years old and over 40 years old. On this basis, the implantation rate, clinical pregnancy rate, multiple birth rate and live birth rate were compared. Results: (1) The implantation rate, clinical pregnancy rate, multiple birth rate, preterm birth rate and live birth rate were all significantly increased, while the abortion rate was significantly reduced in the double blastocyst group (all P<0.05). (2) In the group of<35 years old, the rates of multiple birth and preterm birth in the double blastocyst group were significantly higher than those in the single optimal group (P<0.01). (3) In the 35-40 years old group, the clinical pregnancy rate, multiple birth rate and live birth rate of the double excellent group were significantly higher than those of the single excellent group (P<0.01); while the clinical pregnancy rate and live birth rate of the one excellent and one non excellent group and the double non excellent group were not significantly different from those of the single excellent group (P>0.05), but the multiple birth rate and preterm birth rate were significantly increased (P<0.01). The clinical pregnancy rate, live birth rate and multiple birth rate of double non optimal group were significantly higher than those of single non optimal group (P<0.01). (4) In the group>40 years old, there were no significant differences in clinical pregnancy rate and live birth rate between the two groups (P>0.05). There were no significant differences in implantation rate, clinical pregnancy rate and live birth rate between double non optimal group and single non optimal group (P>0.05). Conclusion: No matter the age of the patients, if the couple have high quality blastocysts, we should give priority to single high quality blastocyst transplantation; even if they have no high quality blastocysts, we should also consider single blastocyst transplantation, in order to reduce the risk of multiple pregnancy and improve the cumulative live birth rate, so as to improve the pregnancy outcome.
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Affiliation(s)
- N Li
- Reproductive Medical Center of the Second Nanning People's Hospital, Nanning 530031, China
| | - H Yang
- Reproductive Medical Center of the Second Nanning People's Hospital, Nanning 530031, China
| | - C Y Li
- Reproductive Medical Center of the Second Nanning People's Hospital, Nanning 530031, China
| | - Y Zou
- Reproductive Medical Center of the Second Nanning People's Hospital, Nanning 530031, China
| | - Z H Deng
- Reproductive Medical Center of the Second Nanning People's Hospital, Nanning 530031, China
| | - Q Y Tan
- Reproductive Medical Center of the Second Nanning People's Hospital, Nanning 530031, China
| | - Y Qiu
- Reproductive Medical Center of the Second Nanning People's Hospital, Nanning 530031, China
| | - C L Xu
- Reproductive Medical Center of the Second Nanning People's Hospital, Nanning 530031, China
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26
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Fu XP, Xu L, Fu BB, Wei KN, Liu Y, Liao BQ, He SW, Wang YL, Chen MH, Lin YH, Li FP, Hong ZW, Huang XH, Xu CL, Wang HL. Pachymic acid protects oocyte by improving the ovarian microenvironment in polycystic ovary syndrome mice†. Biol Reprod 2020; 103:1085-1098. [PMID: 32776126 DOI: 10.1093/biolre/ioaa141] [Citation(s) in RCA: 4] [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: 03/22/2020] [Revised: 06/18/2020] [Accepted: 08/07/2020] [Indexed: 11/13/2022] Open
Abstract
Women with polycystic ovary syndrome (PCOS) are characterized by endocrine disorders accompanied by a decline in oocyte quality. In this study, we generated a PCOS mice model by hypodermic injection of dehydroepiandrosterone, and metformin was used as a positive control drug to study the effect of pachymic acid (PA) on endocrine and oocyte quality in PCOS mice. Compared with the model group, the mice treated with PA showed the following changes (slower weight gain, improved abnormal metabolism; increased development potential of GV oocytes, reduced number of abnormal MII oocytes, and damaged embryos; lower expression of ovarian-related genes in ovarian tissue and pro-inflammatory cytokines in adipose tissue). All these aspects show similar effects on metformin. Most notably, PA is superior to metformin in improving inflammation of adipose tissue and mitochondrial abnormalities. It is suggested that PA has the similar effect with metformin, which can improve the endocrine environment and oocyte quality of PCOS mice. These findings suggest that PA has the similar effect with metformin, which can improve the endocrine environment and oocyte quality of PCOS mice.
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Affiliation(s)
- Xian-Pei Fu
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China.,Clinical Pharmacy Office, Taiyuan Central Hospital of Shanxi Medical University, Taiyuan, China
| | - Lin Xu
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China
| | - Bin-Bin Fu
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China
| | - Kang-Na Wei
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China.,Department of Gynaecology and Obstetrics, Affiliated Xiang'an Hospital of Xiamen University, Xiamen, China
| | - Yu Liu
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China.,Medical College, Guangxi University, Nanning, China
| | - Bao-Qiong Liao
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China
| | - Shu-Wen He
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China
| | - Ya-Long Wang
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China.,Reproductive Medicine Center, The Maternal and Child Health Care Hospital, Xiangtan, China
| | - Ming-Huang Chen
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China
| | - Yan-Hong Lin
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China.,Department of Gynaecology, Affiliated Hospital of Putian University, Putian University, Putian, China
| | - Fei-Ping Li
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China.,Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, China
| | - Zi-Wei Hong
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China
| | - Xiao-Hua Huang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Chang-Long Xu
- The Reproductive Medical Center Nanning Second People's Hospital, Nanning, China
| | - Hai-Long Wang
- Organ Transplantation Institute, School of Medicine, Xiamen University, Xiamen, China.,Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, China
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27
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Zhao DC, Li YM, Ma JL, Yi N, Yao ZY, Li YP, Quan Y, Li XN, Xu CL, Qiu Y, Wu LQ. Single-cell RNA sequencing reveals distinct gene expression patterns in glucose metabolism of human preimplantation embryos. Reprod Fertil Dev 2019; 31:237-247. [PMID: 30017025 DOI: 10.1071/rd18178] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 06/19/2018] [Indexed: 12/21/2022] Open
Abstract
Precise regulation of glucose metabolism-related genes is essential for early embryonic development. Although previous research has yielded detailed information on the biochemical processes, little is yet known of the dynamic gene expression profiles in glucose metabolism of preimplantation embryos at a single-cell resolution. In the present study, we performed integrated analysis of single-cell RNA sequencing (scRNA-seq) data of human preimplantation embryos that had been cultured in sequential medium. Different cells in the same embryo have similar gene expression patterns in glucose metabolism. During the switch from the cleavage to morula stage, the expression of glycolysis-related genes, such as glucose transporter genes (solute carrier family 2 (facilitated glucose transporter), member 1 (SLC2A1) and solute carrier family 2 (facilitated glucose transporter), member 3 (SLC2A3) and genes encoding hexokinase, phosphofructokinase, pyruvate kinase and lactate dehydrogenase, is increased. The genes involved in the pentose phosphate pathway are highly expressed at the cleavage stage, generating the reducing power to balance oxidative stress derived from biosynthesis. Expression of the genes involved in the biosynthesis of glycerophospholipids is increased after the morula stage. Nevertheless, the expression of tricarboxylic acid-related genes remains relatively unchanged during the preimplantation stages. In conclusion, we discovered that the gene expression profiles are dynamic according to glucose utilisation in the embryos at different stages, which contributes to our understanding of regulatory mechanisms of glucose metabolism-related genes in human preimplantation embryos.
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Affiliation(s)
- Di-Cheng Zhao
- The State Key Laboratory of Medical Genetics of China, Central South University, 72 Xiangya Road, Changsha, 410008, China
| | - Yu-Mei Li
- The Reproductive Medical Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, China
| | - Jie-Liang Ma
- Translational Center for Stem Cell Research, Tongji Hospital, Department of Regenerative Medicine, Tongji University School of Medicine, 1239 Siping Road, Shanghai 200065, China
| | - Ning Yi
- Translational Center for Stem Cell Research, Tongji Hospital, Department of Regenerative Medicine, Tongji University School of Medicine, 1239 Siping Road, Shanghai 200065, China
| | - Zhong-Yuan Yao
- The State Key Laboratory of Medical Genetics of China, Central South University, 72 Xiangya Road, Changsha, 410008, China
| | - Yan-Ping Li
- The Reproductive Medical Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, China
| | - Yi Quan
- The State Key Laboratory of Medical Genetics of China, Central South University, 72 Xiangya Road, Changsha, 410008, China
| | - Xin-Ning Li
- The State Key Laboratory of Medical Genetics of China, Central South University, 72 Xiangya Road, Changsha, 410008, China
| | - Chang-Long Xu
- The Reproductive Medical Center of Nanning Second People's Hospital, Guangxi Medical University, 13 Dancun Road, Nanning, 530031, China
| | - Ying Qiu
- The Reproductive Medical Center of Nanning Second People's Hospital, Guangxi Medical University, 13 Dancun Road, Nanning, 530031, China
| | - Ling-Qian Wu
- The State Key Laboratory of Medical Genetics of China, Central South University, 72 Xiangya Road, Changsha, 410008, China
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Lu PP, Zhang N, Ma HM, Gu JH, Xu CL, Meng FS, Wang JL. [Study on the related factors of esophageal cancer and precancerous lesions in rural residents aged 40-69 years in Shandong Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:1104-1109. [PMID: 31683395 DOI: 10.3760/cma.j.issn.0253-9624.2019.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the related factors of esophageal squamous cell carcinoma and precancerous lesions among residents aged 40-69 years old in rural areas of Shandong Province. Methods: In October 2018, 300 villages in 13 counties of the Shandong upper gastrointestinal cancerearly diagnosis and treatment projectin 2017 were selected as research areas, and 30 400 residents aged 40-69 were recruited in this study. The demographic characteristics, health status and lifestyle information were collected through the questionnaire survey, and endoscope iodine staining and indicative biopsy methods were used for cancer screening among eligible people.The multivariate logistic regression model was used to analyze the risk factors for esophageal cancer and precancerous lesions. Results: The subjects in this study were (56.42±7.24) years old, including 13 193 males (43.40%).There were 936 cases of esophageal cancer and precancerous lesions (3.08%), including 521 males and 415 females.Compared with women, 40-49 years old, high level education, drinking tap water, regular intake of meat, eggs and milk, and family average annual income more than 30 000 RMB, men (OR=1.90, 95%CI: 1.65-2.19), 60-69 years old (OR=5.28, 95%CI: 4.11-7.30), primary school education or below (OR=1.50, 95%CI: 1.20-1.89), drinking groundwater (OR=1.71, 95%CI: 1.38-2.13), never eating meat, eggs and milk (OR=1.48, 95%CI: 1.22-1.80), and family average annual income less than 30 000 RMB (OR=1.41, 95%CI: 1.16-1.70) would increase the risk of esophageal cancer and precancerous lesions. Conclusion: The gender, age, educational level, annual household income, drinking water source, the frequency of eating meat, egg and milk were related to the occurrence of esophageal cancer and precancerous lesions among 40-69 years old residents in rural areas of Shandong Province.
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Affiliation(s)
- P P Lu
- School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, University of Jinan, Jinan 250022, China
| | - N Zhang
- Department of Education and Prevention, Shandong Cancer Hospital And Institute, Shangdong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - H M Ma
- Department of Education and Prevention, Shandong Cancer Hospital And Institute, Shangdong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - J H Gu
- Department of Biostatistics, School of Public Health, Shandong University, Jinan 250012, China
| | - C L Xu
- Department of Education and Prevention, Shandong Cancer Hospital And Institute, Shangdong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - F S Meng
- Department of Education and Prevention, Shandong Cancer Hospital And Institute, Shangdong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - J L Wang
- Department of Education and Prevention, Shandong Cancer Hospital And Institute, Shangdong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
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Zhang ZP, Xu CL, Xi CJ, Zhang XL. [Clinical features and efficacy of microsurgery for treatment of cerebral cysticercosis of the fourth ventricle: a report of 24 patients]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2019; 31:529-531. [PMID: 31713386 DOI: 10.16250/j.32.1374.2019200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To analyze the clinical characteristics of 24 patients with cysticercosis of the fourth ventricle, and to evaluate the therapeutic efficacy of microsurgery. METHODS The clinical data of 24 patients with cysticercosis of the fourth ventricle referred the Department of Neurosurgery of the Affiliated Hospital of Qinghai University from January 2000 to December 2018 were collected, and the clinical features, imaging characteristics, surgical methods, therapeutic efficacy and postoperative complications were analyzed. RESULTS The 24 patients included 15 men and 9 women, and had a mean age of 43.5 years (range, 16 to 68 years). Preoperative imaging examinations showed obvious dilatation of bilateral lateral ventricles, the third ventricle and middle cerebral aqueduct, and spherical or cystic dilatation of the fourth ventricle. There were 18 cases positive for antibodies against cysticercus, and 3 of the 21 cases were egg positives. All 24 cases received microsurgery, including 8 cases via the median aperture approach, 7 cases via the median aperture-cerebellar vermis approach, and 9 cases via the transcerebellomedullary fissure approach. There were 17 cases with complete delivery of vesicles, 5 cases with vesicle rupture and 2 cases with extraction of cystic fluid followed by separation and removal of cystic wall. All cases had obvious retraction of the ventricular system and disappearance of intracranial hypertension following surgery. There were 19 cases (79.17%) with well recovery, and 5 cases (20.83%) with aggravation or development of cerebellar ataxia, which recovered following treatment for 1 to 2 weeks. CONCLUSIONS The transcerebellomedullary fissure approach is a safe and lowly invasive approach for the treatment of cysticercosis of the fourth ventricle.
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Affiliation(s)
- Z P Zhang
- Department of Neurosurgery, Affiliated Hospital of Qinghai University, Xining 810001, China
| | - C L Xu
- Department of Neurosurgery, Affiliated Hospital of Qinghai University, Xining 810001, China
| | - C J Xi
- Department of Neurosurgery, Affiliated Hospital of Qinghai University, Xining 810001, China
| | - X L Zhang
- Department of Neurosurgery, Wuxi People's Hospital Affiliated to Nanjing Medical University, China
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Zhu QJ, Liang J, Xu CL, Wu X, Zhu MH, Ma L, Li MY, Ma QH, Song E. [Quantification of optical coherence tomographic angiography images in type 2 diabetic patients]. Zhonghua Yan Ke Za Zhi 2019; 55:273-279. [PMID: 30982289 DOI: 10.3760/cma.j.issn.0412-4081.2019.04.009] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To quantify optical coherence tomographic angiography (OCTA) images and to explore potential clinical values of each parameter in diabetic patients. Methods: A case-control and cross-sectional study of diabetic (129 eyes) and healthy (32 eyes) subjects was conducted. 3-mm OCTA scan, fundus photography and best corrected visual acuity measurement were performed. Image-pro plus was used to calculate microvascular and foveal avascular indices in nonsegmented and segmented OCTA images. Intraclass correlation coefficient and relative standard deviation were used to examine the reliability, reproducibility and accuracy. Correlation of each parameter was calculated, and so was the area under the receiver operating characteristic curve. Results: Vessel density (VD) of diabetic patients measured in the nonsegmented retinal layer (RL) and superficial retinal layer (SRL) was 49.146%±6.097%, 44.038%±5.641%, respectively, significantly lower than healthy subjects 52.212%±6.250%, 46.698%±5.417% (t=2.534, 2.405; P=0.012, 0.017), and vessel length (VL) was (19.905±2.285)mm, (17.596±2.149)mm, (14.479±2.091)mm in the three layers, which was significantly shorter than that in the healthy control group (21.037±2.185)mm, (18.739±1.994)mm, (15.343±2.266)mm (t=2.529, 2.731, 2.059; P=0.012, 0.007, 0.041). Compared with non-diabetes, foveal avascular zone (FAZ) in diabetes was (0.441±0.167)mm(2), larger compared to health eyes 0.352±0.109mm(2) (t=-2.831, P=0.005). FAZ demonstrated a negative correlation with VD and VL in RL or SRL(r=-0.227, -0.338; P<0.05) (r=-0.241, -0.332; P<0.05), while best corrected visual acuity showed a negative correlation with VL in each layer (r=-0.225, -0.201, -0.250; P=0.01, 0.022, 0.004), and VD in DRL (r=-0.197, P=0.026). All parameters showed high reproducibility between graders(intraclass correlation coefficient>0.965), while relative standard deviation was greater than 3.049%. AR had the highest area under the receiver operating characteristic curve (0.737), compared with AI (0.724). Conclusions: Our study demonstrates good reliability, reproducibility and accuracy of quantification of OCTA images and reveals changes of VD, VL and FAZ in diabetes, which may occur earlier than vision impairment. AR and AL may have great values in prompting early diabetic retinopathy in diabetic patients. (Chin J Ophthalmol, 2019, 55:273-279).
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Affiliation(s)
- Q J Zhu
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, 215021, China
| | - J Liang
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, 215021, China
| | - C L Xu
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, 215021, China; The First Hospital of Jilin University, Changchun 130000, China
| | - X Wu
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, 215021, China
| | - M H Zhu
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, 215021, China
| | - L Ma
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, 215021, China
| | - M Y Li
- Suzhou Gusu District Health And Family Planning Bureau, Suzhou 215000, China
| | - Q H Ma
- The Third People's Hospital of Xiangcheng District, Suzhou 215131, China
| | - E Song
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, 215021, China
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Yang W, Yang SX, Xu CL, Yu LM, Lin H, Jiang Y. [An association of ulcerative colitis with tumor necrosis factor superfamily member 15 gene polymorphisms in Chinese patients]. Zhonghua Nei Ke Za Zhi 2018; 57:476-482. [PMID: 29996264 DOI: 10.3760/cma.j.issn.0578-1426.2018.07.002] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To explore the relationship between ulcerative colitis (UC) susceptibility and tumor necrosis factor superfamily member (TNFSF) 15 gene polymorphisms and haplotypes in Han nationality in Zhejiang province of China. Methods: A total of 408 UC patients and 574 healthy controls were recruited in this study. Three single nucleotide polymorphisms of TNFSF15 (rs3810936, rs4263839, rs4979462) were examined by improved multiple ligase detection reaction (iMLDR) technique. Analyses of linkage disequilibrium (LD) and haplotype were performed by Haploview 4.2 software in all study subjects. Results: The variant allele A and genotype (GA+AA) of rs4263839 were less frequent in UC patients than in controls (45.34% vs. 50.17%, P=0.035;68.38% vs. 76.66%, P=0.004). According to the severity and location of disease, UC patients were divided into different subgroups. After multiple comparison correction(α=0.012 5), the frequencies of variant allele A and genotype (GA+AA) of rs4263839 were lower in patients with severe UC than in the controls (37.69% vs. 50.17%, P=0.007; 60.00% vs. 76.66%, P=0.004). Similar findings were also drawn for patients with extensive colitis in contrast with the controls (42.22% vs. 50.17%, P=0.009; 63.33% vs. 76.66%, P<0.001). Furthermore, the haplotype analysis indicated that three SNPs above were in a strong LD. The frequency of haplotype TAC was lower in UC patients than in the controls(40.83% vs. 46.04%, P=0.023). Also it was less prevalent in patients with severe UC and patients with extensive colitis when compared with controls respectively (33.38% vs. 46.04%, P=0.005;37.22% vs. 46.04%, P=0.003). Conclusions: TNFSF15 (rs4263839) variation might not only reduce the risk of UC, but also affect the severity and lesion location of UC. The haplotype TAC formed by rs3810936, rs4263839 and rs4979462 might be related to a lower risk of UC, especially in patients with severe colitis or patients with extensive colitis.
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Affiliation(s)
- W Yang
- Department of Gastroenterology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Pan CW, Yang SX, Pan ZZ, Zheng B, Wang JZ, Lu GR, Xue ZX, Xu CL. Andrographolide ameliorates d-galactosamine/lipopolysaccharide-induced acute liver injury by activating Nrf2 signaling pathway. Oncotarget 2018; 8:41202-41210. [PMID: 28465482 PMCID: PMC5522263 DOI: 10.18632/oncotarget.17149] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 03/28/2017] [Indexed: 12/15/2022] Open
Abstract
Andrographolide (ADH), a diterpenoid lactone extracted from Andrographis paniculata, has been found to have anti-inflammatory and anti-oxidative effects. However, its protective effects and mechanisms on liver injury have not been investigated clearly. This study takes an attempt to reveal the protective effects and mechanism of ADH on lipopolysaccharide (LPS) and D-galactosamine (D-GalN)-induced acute liver injury in mice. The mice liver injury model was induced by LPS (60 mg/kg) and D-GalN (800 mg/kg), and ADH was given 1 h after LPS and D-GalN treatment. Hepatic tissue histology was measured by H&E staining. Serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were detected by detection kits. The levels of TNF-α and IL-1β were detected by ELISA. Moreover, malondialdehyde (MDA) and reactive oxygen species (ROS) contents were also detected. Meanwhile, the expression of Nrf2, HO-1, and NF-κB were detected by western blot analysis. The results showed that ADH treatment improved liver histology and decreased the levels of ALT, AST, MPO, IL-1β, TNF-α, as well as MDA and ROS levels of hepatic tissues in a dose-dependent manner. ADH also inhibited LPS/D-GalN-induced NF-κB activation. The expression of Nrf2 and HO-1 were increased by treatment of ADH. In conclusion, ADH protected against LPS/D-GalN-induced liver injury by inhibiting NF-κB and activating Nrf2 signaling pathway.
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Affiliation(s)
- Chen-Wei Pan
- Department of Infectious Disease,The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Shou-Xing Yang
- Department of Gastroenterology,The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Zhen-Zhen Pan
- Department of Infectious Disease, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Bo Zheng
- Department of Gastroenterology,The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Jian-Zhang Wang
- Department of Gastroenterology,The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Guang-Rong Lu
- Department of Gastroenterology,The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Zhan-Xiong Xue
- Department of Gastroenterology,The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Chang-Long Xu
- Department of Gastroenterology,The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
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Wu CQ, Cao SG, Xia XP, Xu CL, Xia SL, Lin XQ, Jin J, Ding R, Jiang Y. [Association of Crohn's disease with aryl hydrocarbon receptor gene polymorphisms and haplotypes]. Zhonghua Nei Ke Za Zhi 2018; 57:37-43. [PMID: 29325309 DOI: 10.3760/cma.j.issn.0578-1426.2018.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the relationship of Crohn's disease (CD) susceptibility to aryl hydrocarbon receptor (AhR) polymorphisms and haplotypes in Han population in Wenzhou city, China. Methods: A total of 310 CD patients and 573 age- and sex-matched healthy controls were enrolled in our study. Three single nucleotide polymorphisms (SNPs) of AhR(rs10249788,rs2158041,rs2066853) were determined by the improved multiple ligase detection reaction technique. Unconditional logistic regression analyses was applied to analyze the allelic and genotypic differences of each SNP between CD patients and controls, as well as their influence on the clinicopathologic characteristics in CD patients. Analyses of linkage disequilibrium and haplotype were performed by Haploview 4.2 software in all study subjects. Results: Compared with the controls, the variant allele (T) and genotype (CT+TT) of (rs2158041) were evidently decreased among CD patients (19.52% vs. 25.04%, P=0.009; 34.19% vs. 44.68%, P=0.003). According to "the Montreal Classification Standards" , CD patients were divided into different subgroups. The variant allele (T) and genotype (CT+TT) of (rs2158041) were significantly lower in patients with terminal ileum CD than in controls (16.79% vs. 25.04%, P=0.005; 28.24% vs. 44.68%, P=0.001). Similar conclusions were also drawn in patients with constricting disease when compared with the controls (15.20% vs. 25.04%, P=0.003; 28.43% vs. 44.68%, P=0.003). The three SNPs above were shown to be in a linkage disequilibrium. Compared with the controls respectively, the frequency of haplotype (CCG) was increased in CD patients (44.73% vs. 39.60%, P=0.039), whereas that of haplotype (CTG) was decreased (18.02% vs. 22.78%, P=0.047). Conclusions: AhR (rs2158041) variation might influence the risk as well as the location and behavior of CD. The haplotype (CCG) possibly increase the risk of CD development, whereas haplotype (CTG) might decrease it.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Y Jiang
- Department of Gastroenterology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Zheng B, Chen L, Pan CC, Wang JZ, Lu GR, Yang SX, Xue ZX, Wang FY, Xu CL. Targeted delivery of miRNA-204-5p by PEGylated polymer nanoparticles for colon cancer therapy. Nanomedicine (Lond) 2018; 13:769-785. [PMID: 29460671 DOI: 10.2217/nnm-2017-0345] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIM miRNAs have been recognized for their potential in cancer therapeutics, and multiple miRNAs were suggested to affect target genes expression. To overcome limitations of free synthetic miRNAs, such as easily degraded in biofluids and limited in cellular uptake, novel miRNAs delivery systems need to be developed. MATERIALS & METHODS Using surface-functionalizing technique, poly(D,L-lactide-co-glycolide)/poly(L-lactide)-block-poly(ethylene glycol)-folate polymer nanoparticle (PLGA/PLA-PEG-FA) loaded with miR-204-5p (FA-NPs-miR-204) was developed. The therapeutic efficacy of FA-NPs-miR-204 was evaluated in the Luc-HT-29 xenograft tumor model in vivo. RESULTS FA-NPs-miR-204 could be taken up by HT-29 and HCT-116 cells efficiently, resulting in significant inhibitory effect on cell proliferation and promotive effect on cell apoptosis. In vivo study showed that FA-NPs-miR-204 could exert tumor suppressive function in Luc-HT-29 xenograft model. CONCLUSION Our study demonstrates a convenient miRNA delivery system that targets tumor tissue and exerts tumor suppressive function, thus demonstrating a potential new therapeutic option for colon cancer.
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Affiliation(s)
- Bo Zheng
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Lu Chen
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Chun-Chun Pan
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Jian-Zhang Wang
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Guang-Rong Lu
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Shou-Xing Yang
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Zhan-Xiong Xue
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Fang-Yan Wang
- Department of Pathophysiology, School of Basic Medicine Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Chang-Long Xu
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China.,Center for Diagnostics & Therapeutics, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30302, USA
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Wang JZ, Yang SX, Ye F, Xia XP, Shao XX, Xia SL, Zheng B, Xu CL. Hypoxia-induced Rab11-family interacting protein 4 expression promotes migration and invasion of colon cancer and correlates with poor prognosis. Mol Med Rep 2017; 17:3797-3806. [PMID: 29257314 DOI: 10.3892/mmr.2017.8283] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 09/06/2017] [Indexed: 11/06/2022] Open
Abstract
Rab11-family interacting proteins (Rab11‑FIPs) are associated with the progression of various tumors; however, their expression and clinical significance in colorectal cancer (CRC) remains largely undetermined. In this study, the clinical implications, functions and underlying mechanisms of Rab11‑FIP4 in CRC were investigated. Immunohistochemical analysis revealed that expression of Rab11‑FIP4 was significantly increased in human CRC tissues and correlated with poor prognosis of patients with CRC. Overexpression of Rab11‑FIP4 in the CRC cell line significantly promoted cell proliferation, migration and invasion in vitro and tumor metastasis in vivo. Furthermore, the results of a co‑immunoprecipitation assay and western blot analysis demonstrated that Rab11‑FIP4 interacted with Rab11 and insulin‑like growth factor 1 receptor, and increased the phosphorylation of extracellular signal‑regulated kinase 1/2 and AKT serine/threonine kinase. In addition, hypoxia contributed to the upregulation of Rab11‑FIP4 expression via hypoxia‑inducible factor‑1α activation of the Rab11‑FIP4 promoter. In conclusion, the results of the present study suggest that Rab11‑FIP4 may act as an oncogene in CRC, and may be a potential therapeutic target for the treatment of patients with CRC.
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Affiliation(s)
- Jian-Zhang Wang
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Shou-Xing Yang
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Fangpeng Ye
- Department of Gastroenterology, Ruian People's Hospital, Wenzhou, Zhejiang 325200, P.R. China
| | - Xuan-Ping Xia
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Xiao-Xiao Shao
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Sheng-Long Xia
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Bo Zheng
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
| | - Chang-Long Xu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, P.R. China
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Xu CL, Liang JP, Lu QT, Zhang SJ. [Transnasal endoscopic surgery of communicating neoplasm outside cerebral dura mater and orbital fasciae]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1276-1280. [PMID: 29798378 DOI: 10.13201/j.issn.1001-1781.2017.16.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Indexed: 11/12/2022]
Abstract
Objective:This paper is intend to observe the feasibility of surgical approach with which communicating neoplasm outside cerebral dura mater and orbital fasciae was removed by transnasal endoscopic surgery.Method:Nine patients suffered from communicating neoplasm in the area of naso-orbital-cranio complex were treated with transnasal endoscopic surgery. The size of skull base bone defect was from 1.25 cm×1.13 cm to 3.25 cm×2.69 cm. No eye enucleation was done. No reconstructions of skull base and medial wall of orbital cavity were done. Iodoform gauze was packed in paranasal sinuses fourteen days. Patients with malignant tumor were treated radiation therapy and chemical therapy after surgical treatment. The degree of resection, complications of intracranial and orbital cavities, survival condition were the focus of this study.Result:The tumor were completely removed and all operations were successfully completed by trasnasal endoscopic surgery. Only one patient was required blood transfusion due to seriously bleeding from tumor during the operation. There was no orbital, intracranial, and vascular complications. The defect of bone at skull base and lamina papyracea were automatic reconstructed. Three patients have showed recurrence of neoplasm, and two of them died during two years of following up time.Conclusion:Transnasal endoscopic surgery is a safe, reliable and effective approach to treat communicating neoplasm in the area of naso-orbital-cranio complex, of which main part of tumor exists in the sinunasal cavity.
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Affiliation(s)
- C L Xu
- Department of Otolaryngology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - J P Liang
- Department of Otolaryngology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Q T Lu
- Department of Otolaryngology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - S J Zhang
- Department of Otolaryngology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
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Wang JZ, Xu CL, Wu H, Shen SJ. LncRNA SNHG12 promotes cell growth and inhibits cell apoptosis in colorectal cancer cells. Braz J Med Biol Res 2017; 50:e6079. [PMID: 28225893 PMCID: PMC5333723 DOI: 10.1590/1414-431x20176079] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 01/10/2017] [Indexed: 12/16/2022] Open
Abstract
Several long non-coding RNA (lncRNA) might be correlated with the prognosis of colorectal cancer (CRC) and serve as a diagnostic and prognostic biomarker. However, the exact expression pattern of small nucleolar RNA host gene 12 (SNHG12) in colorectal cancer and its clinical significance remains unclear. The level of SNHG12 was detected by qRT-PCR in CRC tissues and CRC cells. MTT assay and colony formation assay were performed to examine the cell proliferation of CRC cells transfected with pcDNA-SNHG12 or si-SNHG12. Flow cytometry technology was used to detect cell cycle and cell apoptosis of CRC cells transfected with pcDNA-SNHG12 or si-SNHG12. The protein level of cell cycle progression-related molecules, including cyclin-dependent kinases (CDK4, CDK6), cyclin D1 (CCND1) and cell apoptosis-related molecule caspase 3 was detected by western blot. The effect of SNHG12 knockdown was examined in vivo. Increased levels of SNHG12 were observed in CRC tissues and in CRC cells. SNHG12 promoted the cell proliferation of CRC cells. In addition, SNHG12 overexpression boosted the cell cycle progression of SW480 cells transfected with pcDNA-SNHG12 and SNHG12 knockdown inhibited the cell cycle progression of HT29 cells transfected with si-SNHG12. SNHG12 also inhibited the cell apoptosis of CRC cells. We also found that SNHG12 increased the expression of cell cycle-related proteins and suppressed the expression of caspase 3. Our results suggest that SNHG12 promoted cell growth and inhibited cell apoptosis in CRC cells, indicating that SNHG12 might be a useful biomarker for colorectal cancer.
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Affiliation(s)
- J Z Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - C L Xu
- Department of Gastroenterology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - H Wu
- Department of Gastroenterology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - S J Shen
- Department of Gastroenterology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Shi QW, Xu CL, Li NN, Liu W, Yang L, Deng LW, Qiu Y. [Clinical and genetic features of 45,X maleness: A case report and review of the literature]. Zhonghua Nan Ke Xue 2017; 23:65-68. [PMID: 29658240] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To explore the relationship between the clinical and genetic features of a short-statured azoospermia male with the karyotype of 45,X. METHODS Using GTG-banded chromosome analysis, we performed karyotyping for a 150 cm-high infertile male with azoospermia and investigated the presence and location of the genes on the Y chromosome by FISH and PCR. RESULTS GTG-banded chromosome analysis showed the karyotype of the patient to be 45,X,add(14)(p11). The results of PCR manifested the deletion of AZFa, AZFb, AZFc, and AZFd in the SRY gene. FISH revealed the translocation of the short arm of the Y chromosome to that of chromosome 14 and deletion of most proportions of its long arm, with the disruption site close to the centromere region. The karyotype of the patient was 45,X,der(Y)t(Y;14)(q11;q11.2), 14.ish (SRY+, CEP Y+ , DYZ1-). CONCLUSIONS The karyotype of the patient was unbalanced Y/14 translocation. The SRY gene is the key to maleness. The deletion of AZFa- d induces spermatogenic disturbance, and the deletion of the q arm of the Y chromosome may be related with short stature.
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Affiliation(s)
- Qiu-Wen Shi
- Center of Reproduction, Nanning Second People's Hospital, Nanning, Guangxi 530031, China
| | - Chang-Long Xu
- Center of Reproduction, Nanning Second People's Hospital, Nanning, Guangxi 530031, China
| | - Ni-Na Li
- Center of Reproduction, Nanning Second People's Hospital, Nanning, Guangxi 530031, China
| | - Wei Liu
- Center of Reproduction, Nanning Second People's Hospital, Nanning, Guangxi 530031, China
| | - Lan Yang
- Center of Reproduction, Nanning Second People's Hospital, Nanning, Guangxi 530031, China
| | - Li-Wen Deng
- Center of Reproduction, Nanning Second People's Hospital, Nanning, Guangxi 530031, China
| | - Ying Qiu
- Center of Reproduction, Nanning Second People's Hospital, Nanning, Guangxi 530031, China
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Abstract
1. This study was conducted to explore the promoter region of the chicken ASB15 gene by detecting the activities of the dual luciferase reporter gene and to assess expression profiles of the ASB15 gene in 10 different tissues from Gushi chickens. 2. Five dual luciferase reporter gene vectors were constructed and transfected into DF1 cells. The activities of recombined plasmids were measured and the core promoter was confirmed by bioinformatic analysis. Total RNA was extracted and the relative expression of the ASB15 gene was examined. 3. Data analysis indicated that the promoter was located from -955 to -212 bp. Results showed that the chicken ASB15 gene was expressed in heart, breast muscle and leg muscle. 4. This study has confirmed the promoter region and the expression profile of the chicken ASB15 gene, which provides a foundation for further exploring its transcriptional regulation and function.
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Affiliation(s)
- Y C Wang
- b Department of Animal Science , College of Animal Science and Technology, Gansu Agricultural University , Lanzhou , P. R. China
| | - Z J Li
- a Department of Animal Science , College of Animal Science and Veterinary Medicine, Henan Agricultural University , Zhengzhou , P. R. China
| | - R L Han
- a Department of Animal Science , College of Animal Science and Veterinary Medicine, Henan Agricultural University , Zhengzhou , P. R. China
| | - C L Xu
- a Department of Animal Science , College of Animal Science and Veterinary Medicine, Henan Agricultural University , Zhengzhou , P. R. China
| | - S H Wang
- a Department of Animal Science , College of Animal Science and Veterinary Medicine, Henan Agricultural University , Zhengzhou , P. R. China
| | - G R Sun
- a Department of Animal Science , College of Animal Science and Veterinary Medicine, Henan Agricultural University , Zhengzhou , P. R. China
| | - S H Wang
- a Department of Animal Science , College of Animal Science and Veterinary Medicine, Henan Agricultural University , Zhengzhou , P. R. China
| | - J P Wu
- b Department of Animal Science , College of Animal Science and Technology, Gansu Agricultural University , Lanzhou , P. R. China
| | - X T Kang
- a Department of Animal Science , College of Animal Science and Veterinary Medicine, Henan Agricultural University , Zhengzhou , P. R. China
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Abstract
In the present study, two new cyclic bisbibenzyls (1, 2) co-occuring with a known compound, isoplagiochins C (3) were isolated from Hebertus dicranus. The structures were determined mainly by extensive 1D and 2D NMR experiments, and the absolute configurations of 1 and 2 were established by the circular dichroism spectrum. Furthermore, all these three rare compounds were tested in vitro for inhibitory activity against the growth of human cancer cell lines (A549, HCT116, MDA-MB-231, and BEL7404) by the MTT assay, and compound 2 exhibited moderately inhibitory activity with IC50 values ranging from 13.89 to 31.62 μmol·L(-1). In conclusion, our results provided a basis for future development and modification of these compounds for cancer therapy.
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Affiliation(s)
- Chang-Long Xu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332000, China
| | - Jin-Xin Wang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Hui-Liang Li
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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Xu CL, Wang JZ, Xia XP, Pan CW, Shao XX, Xia SL, Yang SX, Zheng B. Rab11-FIP2 promotes colorectal cancer migration and invasion by regulating PI3K/AKT/MMP7 signaling pathway. Biochem Biophys Res Commun 2016; 470:397-404. [PMID: 26792722 DOI: 10.1016/j.bbrc.2016.01.031] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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: 12/27/2015] [Accepted: 01/06/2016] [Indexed: 01/17/2023]
Abstract
Rab11-family interacting proteins (Rab11-FIPs) belong to an evolutionarily conserved protein family and act as effector molecules for the Rab11 family of small GTPases. Recent evidence suggests that Rab11-FIPs have important roles in tumor progression and metastasis. However, the contribution of Rab11-FIPs to colorectal carcinoma (CRC) remains elusive. Our study focuses on elucidating the role of Rab11-FIP2 in the migration and invasion of colorectal cancer cells. We firstly found upregulation of Rab11-FIP2 in CRC tissues compared with peritumor tissues by oncomine data-mining analysis, western blot analysis and immunohistochemistry (IHC) analysis, respectively. Then, we demonstrated that knockdown of Rab11-FIP2 via siRNAs transfection resulted in a decrease in migration and invasion of CRC cells, while overexpression of Rab11-FIP2 via lentiviral infection increased migration and invasion of CRC cells. In addition, we verified that Rab11-FIP2 promoted migration and invasion of CRC cells through upregulating MMP7 expression. Finally, using several kinase inhibitors, our results showed that Rab11-FIP2 regulated MMP7 expression through activating PI3K/Akt signaling. Our data suggested a potential role of Rab11-FIP2 in tumor progression and provided novel insights into the mechanism of how Rab11-FIP2 positively regulated cell migration and invasion in CRC cells.
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Affiliation(s)
- Chang-Long Xu
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jian-Zhang Wang
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xuan-Ping Xia
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chen-Wei Pan
- Department of Infectious Disease, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiao-Xiao Shao
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Sheng-Long Xia
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shou-Xing Yang
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bo Zheng
- Department of Gastroenterology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
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Jiang Y, Lin XQ, Cao SG, Xu CL, Wang JZ, Huang ZM, Chen XR, Song L, Xue ZX. [Correlations of genetic polymorphisms of tumor necrosis factor-related apoptosis-inducing ligand gene and its plasma phenotype with ulcerative colitis]. Zhonghua Yi Xue Za Zhi 2012; 92:1244-1248. [PMID: 22883061] [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: 06/01/2023]
Abstract
OBJECTIVE To explore the correlations of genetic polymorphisms in tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) gene and the plasma levels of soluble TRAIL (sTRAIL) with ulcerative colitis (UC). METHODS From May 2004 to April 2011, a total of 393 UC patients were recruited from Second and First Affiliated Hospitals of Wenzhou Medical College and Second Renmin Hospital of Wenzhou City. During the same period, a total of 1292 healthy controls were recruited from Physical Examination Center at Second Affiliated Hospital of Wenzhou Medical College. After PCR amplification, the genetic polymorphisms in TRAIL (G1525A, G1588A, C1595T) genes were examined by direct sequencing, and the haplotype analysis were also performed in all study subjects. Furthermore, the plasma levels of sTRAIL were determined by enzyme-linked immunosorbent assay (ELISA). RESULTS The frequencies of variant genotypes in TRAIL (G1525A, G1588A, C1595T) genes were significantly lower in the UC patients than those in the controls (all P < 0.01). Both of variant allele frequencies in TRAIL G1525A and G1588A were significantly decreased in UC patients (40.08% (315/786) vs 54.95% (1420/2584), 49.49% (389/786) vs 55.53% (1435/2584), both P < 0.01). However, the variant allele frequency in TRAIL C1595T gene was not significantly lower in the UC patients (P = 0.133). According to disease severity, the UC patients were divided into mild, intermediate and severe groups. The frequencies of variant allele (T) and genotype (CT + TT) in TRAIL C1595T gene were also significantly higher in the patients with severe UC than those in others (63.50% (127/200) vs 49.15% (288/586), 77.00% (77/100) vs 61.43% (180/293), both P < 0.01). In haplotype analysis, the frequency of GAT haplotype was significantly higher in the UC patients than that in the controls. However, the frequency of AAT haplotype was significantly lower in the UC patients (both P < 0.01). Furthermore, the plasma levels of sTRAIL were significantly higher in the UC patients than those in the controls ((1.05 ± 0.48) vs (0.96 ± 0.90) ng/L, P < 0.01). CONCLUSION The genetic polymorphisms of TRAIL (G1525A, G1588A, C1595T) and the plasma levels of sTRAIL are correlated with UC in Chinese patients.
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Affiliation(s)
- Yi Jiang
- Department of Gastroenterology, Second Affiliated Hospital, Wenzhou Medical College, Wenzhou 325000, China
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Xu CL, Zhao CB, Ding S, Zhang JF, Xie H, Huang CX. First Report of Root-Knot Nematode Meloidogyne arenaria Infesting Roots of Anubias barteri in Guangdong, China. Plant Dis 2012; 96:773. [PMID: 30727563 DOI: 10.1094/pdis-01-12-0034-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Anubias spp. are very popular aquatic plants that are native to Africa. Anubias barteri is a broadleaf Anubias and is a popular choice for aquariums because of its robust size. In China, broadleaf Anubias is usually planted in sand, with sponges around the rhizome, in small plastic baskets in aquatic plant nurseries. In December 2010, a survey of phytoparasitic nematodes was conducted in the nurseries in Guangzhou, Guangdong Province. Many second-stage juveniles of a Meloidogyne sp. were detected from the roots of A. barteri, but no root galls were found. To identify these juveniles, molecular identification was performed with PCR. The DNA sequence between CO II and l-rRNA of the mitochondrial gene of single juveniles was amplified with universal primers of Meloidogyne, #C2F3 (5'-GGTCAATGTTCAGAAATTTGTGG-3') and #1108 (5'-TACCTTTGACCAATCACGCT-3') (3). The amplified fragments were approximately 1.1 kb long and could not be digested with restrictive enzyme HinfI. The specific fragments were then sequenced. The blast search result revealed that the DNA sequence (GenBank Accession No. JQ446377) had 99 to 100% identity with submitted sequences of Meloidogyne arenaria (GenBank Accession Nos. EU364879, GQ266686, and AY635610). The other extracted juveniles were inoculated into sterile, potted, water spinach (Ipomoea aquatica) in the greenhouse to obtain more nematodes. After 40 days, root galls and female egg masses were clearly observed, and biochemical, molecular, and morphological identifications were conducted. Isoenzyme phenotype (esterase and malate dehydrogenase (MDH) patterns) and the perineal pattern of several gravid females were the same as M. arenaria (1,2), and PCR amplification of single juveniles produced identical fragments as previously found. Single egg masses were collected and juveniles were hatched out and inoculated onto 10 nematode-free plants of A. barteri in a greenhouse. After 40 days, roots of A. barteri exhibited inconspicuous small galls, and the same identification procedures were conducted as mentioned previously. Isoenzyme phenotypes, perineal patterns of adult females, and amplified fragments of single juveniles were identical to those of M. arenaria. M. arenaria is one of the most important root-knot nematodes and causes great losses in many crops around the world (2). To our knowledge, this is the first record of M. arenaria parasitizing aquatic plants of broadleaf Anubias in China and elsewhere, and A. barteri is a new host of M. arenaria. The economic importance of this nematode to A. barteri production is currently unknown. However, because A. barteri is a commercial aquatic plant, more attention should be given by producers to prevent this nematode from becoming an important pathogen. In addition, this finding is very helpful for relevant plant nematode quarantine work. References: (1) P. R. Esbenshade and A. C. Triantaphyllou. J. Nematol. 17:1, 1985. (2) R. N. Perry et al. Root-Knot Nematodes. CABI. Wallingford, UK, 2009. (3) T. O. Powers and T. S. Harris. J. Nematol. 25:1, 1993.
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Affiliation(s)
- C L Xu
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - C B Zhao
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - S Ding
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - J F Zhang
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - H Xie
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - C X Huang
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
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Dai SJ, Xu CL, Wang J, Sun YP, Chian RC. Effect of culture medium volume and embryo density on early mouse embryonic development: tracking the development of the individual embryo. J Assist Reprod Genet 2012; 29:617-23. [PMID: 22430392 DOI: 10.1007/s10815-012-9744-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Accepted: 03/05/2012] [Indexed: 11/30/2022] Open
Abstract
PURPOSE To determine the optimal volume or density of embryos for the well-of-the-well (WOW) system in order to track the development of individual embryos and to determine whether the WOW system can reverse the negative impact of culturing embryos singly. METHODS (1) Mouse embryos (groups of nine at the 2-cell stage) were cultured in 6.25 μl, 12.50 μl, 25.00 μl and 50.00 μl of droplets of culture medium under paraffin oil; (2) Groups of three, six, nine and twelve embryos at the 2-cell stage were cultured in 50 μl of droplet of culture medium under paraffin oil; (3) Groups of nine embryos at the 2-cell stage were cultured in 50 μl of droplet under paraffin oil with or without nine micro-wells made on the bottom of the Petri dish into each of which were placed one of the nine embryos (WOW system). Also single 2-cell stage embryos was cultured individually in 5.5 μl of droplet of culture medium under paraffin oil with or without a single micro-well made on the bottom of the Petri dish (WOW system for single culture). At the end of culture, the percentages of blastocyst development, hatching and hatched blastocysts were compared in each group. The blastocysts were fixed for differential staining. RESULTS The blastocyst development was significantly higher (P < 0.05) when nine embryos were cultured in 50 μl of droplet of culture medium compared with other volumes. The blastocyst development was significantly reduced (P < 0.05) in single embryo culture compared to group embryo culture with or without the WOW system. The blastocyst development was not improved when single embryo cultured individually in a micro-well was compared to single embryo cultured individually without micro-well. The total cell numbers of blastocysts were significantly higher in group embryo culture than single embryo culture regardless of whether the WOW system was used. In addition, the total cell numbers of blastocysts were significantly higher (P < 0.05) in single embryo culture with the WOW system than without. CONCLUSIONS Group embryo culture is superior to single embryo culture for blastocyst development. The WOW system with 50 μl of droplet of culture medium can be used to track the individual development of embryo cultured in groups while preserving good embryonic development. The reduced embryonic development with single embryo culture cannot be ameliorated by the WOW system.
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Affiliation(s)
- Shan-Jun Dai
- Department of Obstetrics and Gynecology, McGill University, Montreal, QC, Canada
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Vdovenko MM, Peng CF, Xu CL, Vylegzhanina ES, Komarov AA, Sakharov II. [Enzyme immunoassay for the determination of hexestrol in meat]. Prikl Biokhim Mikrobiol 2011; 47:84-89. [PMID: 21442924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
An indirect competitive enzyme-linked immunosorbent assay (ELISA) of hexestrol (HES), an antibiotic forbidden for use in livestock farming, has been developed. Conditions of ELISA have been optimized by varying the concentrations of the coating conjugate (HES-ovalbumin), anti-HES antiserum, casein, and Tween 20. In the absence of Tween 20 in the reaction mixture, the detection limit (IC10) equaled 0.01 ng/ml, IC50 equaled 0.17 ng/ml, and the working range (IC20-IC80) equaled 0.03-0.86 ng/ml, while, in the presence of 0.05% Tween 20, these values equaled 0.05 ng/ml, 2.9 ng/ml, and 0.26-32.0 ng/ml, respectively. Standard deviation of the analysis results did not exceed 5.4%. If ELISA was performed in the absence of detergents, the recovery value upon HES determination in spiked beef samples ranged from 74 to 147%.
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Xu CL, Letcher BH, Nislow KH. Size-dependent survival of brook trout Salvelinus fontinalis in summer: effects of water temperature and stream flow. J Fish Biol 2010; 76:2342-2369. [PMID: 20557596 DOI: 10.1111/j.1095-8649.2010.02619.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A 5 year individual-based data set was used to estimate size-specific survival rates in a wild brook trout Salvelinus fontinalis population in a stream network encompassing a mainstem and three tributaries (1.5-6 m wetted width), western Massachusetts, U.S.A. The relationships between survival in summer and temperature and flow metrics derived from continuous monitoring data were then tested. Increased summer temperatures significantly reduced summer survival rates for S. fontinalis in almost all size classes in all four sites throughout the network. In contrast, extreme low summer flows reduced survival of large fish, but only in small tributaries, and had no significant effects on fish in smaller size classes in any location. These results provide direct evidence of a link between season-specific survival and environmental factors likely to be affected by climate change and have important consequences for the management of both habitats and populations.
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Affiliation(s)
- C L Xu
- The Nature Conservancy, Connecticut River Program, Draper Hall, University of Massachusetts, Amherst, MA 01003, USA
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Hao XL, Kuang H, Li YL, Yuan Y, Peng CF, Chen W, Wang LB, Xu CL. Development of an enzyme-linked immunosorbent assay for the alpha-cyano pyrethroids multiresidue in Tai lake water. J Agric Food Chem 2009; 57:3033-3039. [PMID: 19368347 DOI: 10.1021/jf803807b] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A general and broad class selective competitive enzyme-linked immunosorbent assay (ELISA) for the detection of the alpha-cyano pyrethroids was developed. One class specific hapten, the 5-(3-benzylphenyl)-5-cyanopentanoic acid (CPBA-BE), was conjugated with BSA as an immunogen. Polyclonal antibodies, PY-antibodies, were generated. The assay with the most selectivity for the family alpha-cyano pyrethroids such as cyphenothrin was further optimized and tested for tolerance to cosolvent, pH, and ionic strength changes. The IC(50) values of the optimized immunoassay were 4.58 microg L(-1) for cyphenothrin, 5.62 microg L(-1) for fenpropathrin, 7.08 microg L(-1) for deltamethrin, 10.72 microg L(-1) for cypermethrin, 19.95 microg L(-1) for flucythrinate, and 28.18 microg L(-1) for esfenvalerate. The cross-reactivities of cyphenothrin, fenpropathrin, deltamethrin, cypermethrin, flucythrinate, and esfenvalerate were 100%, 81.49%, 64.68%, 42.72%, 22.96%, and 16.25%, respectively. The low detection limit (LDL) of this assay was 0.107 microg L(-1) for cyphenothrin. This method was used for the detection of the alpha-cyano pyrethroids in Tai lake water.
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Affiliation(s)
- X L Hao
- School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, 214000, China
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Xu CL, Wang YZ, Jin ML, Yang XQ. Preparation, characterization and immunomodulatory activity of selenium-enriched exopolysaccharide produced by bacterium Enterobacter cloacae Z0206. Bioresour Technol 2009; 100:2095-2097. [PMID: 19056259 DOI: 10.1016/j.biortech.2008.10.037] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Revised: 10/22/2008] [Accepted: 10/27/2008] [Indexed: 05/27/2023]
Abstract
The tolerant-selenium exopolysaccharide-producing bacterial strain Enterobacter cloacae Z0206 was batch cultured in PDA medium containing optimal concentration of sodium selenite. Selenium was accumulated efficiently in Enterobacter cloacae Z0206 during cultivation with selenium. Inorganic selenite could be transformed into organic forms. Selenium-enriched exopolysaccharide (Se-ECZ-EPS-1) was purified from the fermentation liquid. Selenium content of Se-ECZ-EPS-1 was 12.962microg/g. Se-ECZ-EPS-1 with Mw of 29,300Ka was composed of Glc, Gal and Mann with molar ratio of 8.530:0.061:0.706. Administration of Se-ECZ-EPS-1 to cyclophosphamide (CP)-exposed animals resulted in improvement of cellular and humoral immune responses. These findings indicated that Se-ECZ-EPS-1 may act as potent immunomodulatory agents.
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Affiliation(s)
- C L Xu
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, Zhejiang University, No. 164 Qiutao North Road, Hangzhou 310029, PR China
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Xu CL, Wang YZ, Guo J, Liu JX, Feng J. Comparison of age-related differences in expression of antioxidant enzyme mRNA and activity in various tissues of pigs. Comp Biochem Physiol B Biochem Mol Biol 2007; 147:445-51. [PMID: 17434777 DOI: 10.1016/j.cbpb.2007.02.007] [Citation(s) in RCA: 18] [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] [Subscribe] [Scholar Register] [Received: 11/06/2006] [Revised: 01/04/2007] [Accepted: 02/25/2007] [Indexed: 11/26/2022]
Abstract
Antioxidant enzymes (AOEs), glutathione peroxidase (GPx), superoxide dismutase(SOD) and catalase (CAT) play an important role in protecting tissues from reactive oxygen species (ROS) reactions. The objective of this study was to determine the developmental regulation of AOEs mRNA levels and activity in tissues of different growing phases pigs (Sus scrofa). Nine different tissues were collected from thirty Duroc x Landrace x Yorkshire male pigs with six animals in each age (1, 42, 84, 126 and 168 days) to assay for GPx, CAT and CuZnSOD mRNA expression and activities. Results showed that GPx, CAT, and CuZnSOD mRNA levels in liver increased (P<0.05) at the first stage, and thereafter their levels began to decline (P<0.05), and the maximal mRNA levels of these AOEs were seen at the age of 42, 84, and 126 days, respectively. In Muscle, GPx and CAT mRNA level increased from 1 to 84 days and 1 to 126 days, respectively, and thereafter their levels began to decline, whereas CuZnSOD mRNA level steadily increased (P<0.05) following birth. Activity expression of AOEs in selected tissues was increased as pigs became older (P<0.05) with the exception of CuZnSOD activity in muscle, but changes in AOEs mRNA levels between ages did not fully account for all changes in activity. GPx and CuZnSOD mRNA were most abundantly expressed in muscle, while CAT mRNA were most abundant in brain. AOEs may exert cell and tissue-specific roles in metabolic regulation beyond their mere antioxidant potential. In conclusion, expression of AOEs mRNA and activity exhibit different developmental profiles in various tissues of pigs, and the regulation of AOEs is not tightly coordinated in either tissue.
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Affiliation(s)
- C L Xu
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, Zhejiang University, No.164 Qiutao North Road, Hangzhou, 310029, PR China
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Abstract
The effects of a dried Bacillus subtilis culture on the egg qualities of layers were studied. Nine hundred and sixty 25-wk-old Lohmann Brown layers were randomly divided into 5 groups with 192 layers in each group. Layers in group 1 were fed a control diet. The remaining groups received the control diet that contained either 20 mg of zinc bacitracin/kg and 4 mg of colistin sulfate/kg or 500, 1,000, or 1,500 mg of B. subtilis culture/ kg, respectively. The results showed improvements in egg production, feed consumption, and feed conversion (P < 0.05) of layers when 500 mg of B. subtilis culture/kg was added to the diets. The results also showed some special improvements in this group, including increases in eggshell thickness, yolk color, and Haugh unit, and decreases in yolk cholesterol concentration (P < 0.05). However, excessive doses of B. subtilis culture did not improve the performance of layers.
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Affiliation(s)
- L Li
- College of Animal Science and Technology, China Agricultural University, Beijing, PR China 214036 [corrected]
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