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Huang H, Zhang Z, Xing M, Jin Z, Hu Y, Zhou M, Wei H, Liang Y, Lv Z. Angiostrongylus cantonensis induces energy imbalance and dyskinesia in mice by reducing the expression of melanin-concentrating hormone. Parasit Vectors 2024; 17:192. [PMID: 38654385 PMCID: PMC11036757 DOI: 10.1186/s13071-024-06267-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 03/31/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Infection with Angiostrongylus cantonensis (AC) in humans or mice can lead to severe eosinophilic meningitis or encephalitis, resulting in various neurological impairments. Developing effective neuroprotective drugs to improve the quality of life in affected individuals is critical. METHODS We conducted a Gene Ontology enrichment analysis on microarray gene expression (GSE159486) in the brains of AC-infected mice. The expression levels of melanin-concentrating hormone (MCH) were confirmed through real-time quantitative PCR (RT-qPCR) and immunofluorescence. Metabolic parameters were assessed using indirect calorimetry, and mice's energy metabolism was evaluated via pathological hematoxylin and eosin (H&E) staining, serum biochemical assays, and immunohistochemistry. Behavioral tests assessed cognitive and motor functions. Western blotting was used to measure the expression of synapse-related proteins. Mice were supplemented with MCH via nasal administration. RESULTS Postinfection, a marked decrease in Pmch expression and the encoded MCH was observed. Infected mice exhibited significant weight loss, extensive consumption of sugar and white fat tissue, reduced movement distance, and decreased speed, compared with the control group. Notably, nasal administration of MCH countered the energy imbalance and dyskinesia caused by AC infection, enhancing survival rates. MCH treatment also increased the expression level of postsynaptic density protein 95 (PSD95) and microtubule-associated protein-2 (MAP2), as well as upregulated transcription level of B cell leukemia/lymphoma 2 (Bcl2) in the cortex. CONCLUSIONS Our findings suggest that MCH improves dyskinesia by reducing loss of synaptic proteins, indicating its potential as a therapeutic agent for AC infection.
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Affiliation(s)
- Hui Huang
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
- Department of Pathogen Biology and Biosafety, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
| | - Zhongyuan Zhang
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
- Department of Pathogen Biology and Biosafety, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
| | - Mengdan Xing
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
- Department of Pathogen Biology and Biosafety, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
| | - Zihan Jin
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
- Department of Pathogen Biology and Biosafety, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
| | - Yue Hu
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
- Department of Pathogen Biology and Biosafety, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
| | - Minyu Zhou
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
- Department of Pathogen Biology and Biosafety, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
| | - Hang Wei
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
- Department of Pathogen Biology and Biosafety, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
| | - Yiwen Liang
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
- Department of Pathogen Biology and Biosafety, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China
| | - Zhiyue Lv
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China.
- Department of Pathogen Biology and Biosafety, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, 510030, People's Republic of China.
- Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province, 570311, People's Republic of China.
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Abdo AI, Sun D, Yang K, Li Y, Shi Z, Abd Allah WE, El-Sobky ESEA, Wei H, Zhang J, Kuzyakov Y. Carbon footprint of synthetic nitrogen under staple crops: A first cradle-to-grave analysis. Glob Chang Biol 2024; 30:e17277. [PMID: 38634544 DOI: 10.1111/gcb.17277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 04/19/2024]
Abstract
More than half of the world's population is nourished by crops fertilized with synthetic nitrogen (N) fertilizers. However, N fertilization is a major source of anthropogenic emissions, augmenting the carbon footprint (CF). To date, no global quantification of the CF induced by N fertilization of the main grain crops has been performed, and quantifications at the national scale have neglected the CO2 assimilated by plants. A first cradle-to-grave life cycle assessment was performed to quantify the CF of the N fertilizers' production, transportation, and application to the field and the uses of the produced biomass in livestock feed and human food, as well as biofuel production. We quantified the direct and indirect inventories emitted or sequestered by N fertilization of main grain crops: wheat, maize, and rice. Grain food produced with N fertilization had a net CF of 7.4 Gt CO2eq. in 2019 after excluding the assimilated C in plant biomass, which accounted for a quarter of the total CF. The cradle (fertilizer production and transportation), gate (fertilizer application, and soil and plant systems), and grave (feed, food, biofuel, and losses) stages contributed to the CF by 2%, 11%, and 87%, respectively. Although Asia was the top grain producer, North America contributed 38% of the CF due to the greatest CF of the grave stage (2.5 Gt CO2eq.). The CF of grain crops will increase to 21.2 Gt CO2eq. in 2100, driven by the rise in N fertilization to meet the growing food demand without actions to stop the decline in N use efficiency. To meet the targets of climate change, we introduced an ambitious mitigation strategy, including the improvement of N agronomic efficiency (6% average target for the three crops) and manufacturing technology, reducing food losses, and global conversion to healthy diets, whereby the CF can be reduced to 5.6 Gt CO2eq. in 2100.
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Affiliation(s)
- Ahmed I Abdo
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, China
- Soil Science Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Daolin Sun
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-Agriculture and Circular Agriculture, Guangzhou, China
| | - Kai Yang
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-Agriculture and Circular Agriculture, Guangzhou, China
| | - Yazheng Li
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-Agriculture and Circular Agriculture, Guangzhou, China
| | - Zhaoji Shi
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-Agriculture and Circular Agriculture, Guangzhou, China
| | - W E Abd Allah
- Agricultural Engineering Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | | | - Hui Wei
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-Agriculture and Circular Agriculture, Guangzhou, China
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China
| | - Jiaen Zhang
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-Agriculture and Circular Agriculture, Guangzhou, China
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China
| | - Yakov Kuzyakov
- Peoples Friendship University of Russia (RUDN University), Moscow, Russia
- Department of Soil Science of Temperate Ecosystems, University of Gottingen, Göttingen, Germany
- Department of Agricultural Soil Science, University of Gottingen, Göttingen, Germany
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Lin TY, Jia JS, Luo WR, Lin XL, Xiao SJ, Yang J, Xia JW, Zhou C, Zhou ZH, Lin SJ, Li QW, Yang ZZ, Lei Y, Yang WQ, Shen HF, Huang SH, Wang SC, Chen LB, Yang YL, Xue SW, Li YL, Dai GQ, Zhou Y, Li YC, Wei F, Rong XX, Luo XJ, Zhao BX, Huang WH, Xiao D, Sun Y. ThermomiR-377-3p-induced suppression of Cirbp expression is required for effective elimination of cancer cells and cancer stem-like cells by hyperthermia. J Exp Clin Cancer Res 2024; 43:62. [PMID: 38419081 PMCID: PMC10903011 DOI: 10.1186/s13046-024-02983-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 02/12/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND In recent years, the development of adjunctive therapeutic hyperthermia for cancer therapy has received considerable attention. However, the mechanisms underlying hyperthermia resistance are still poorly understood. In this study, we investigated the roles of cold‑inducible RNA binding protein (Cirbp) in regulating hyperthermia resistance and underlying mechanisms in nasopharyngeal carcinoma (NPC). METHODS CCK-8 assay, colony formation assay, tumor sphere formation assay, qRT-PCR, Western blot were employed to examine the effects of hyperthermia (HT), HT + oridonin(Ori) or HT + radiotherapy (RT) on the proliferation and stemness of NPC cells. RNA sequencing was applied to gain differentially expressed genes upon hyperthermia. Gain-of-function and loss-of-function experiments were used to evaluate the effects of RNAi-mediated Cirbp silencing or Cirbp overexpression on the sensitivity or resistance of NPC cells and cancer stem-like cells to hyperthermia by CCK-8 assay, colony formation assay, tumorsphere formation assay and apoptosis assay, and in subcutaneous xenograft animal model. miRNA transient transfection and luciferase reporter assay were used to demonstrate that Cirbp is a direct target of miR-377-3p. The phosphorylation levels of key members in ATM-Chk2 and ATR-Chk1 pathways were detected by Western blot. RESULTS Our results firstly revealed that hyperthermia significantly attenuated the stemness of NPC cells, while combination treatment of hyperthermia and oridonin dramatically increased the killing effect on NPC cells and cancer stem cell (CSC)‑like population. Moreover, hyperthermia substantially improved the sensitivity of radiation‑resistant NPC cells and CSC‑like cells to radiotherapy. Hyperthermia noticeably suppressed Cirbp expression in NPC cells and xenograft tumor tissues. Furthermore, Cirbp inhibition remarkably boosted anti‑tumor‑killing activity of hyperthermia against NPC cells and CSC‑like cells, whereas ectopic expression of Cirbp compromised tumor‑killing effect of hyperthermia on these cells, indicating that Cirbp overexpression induces hyperthermia resistance. ThermomiR-377-3p improved the sensitivity of NPC cells and CSC‑like cells to hyperthermia in vitro by directly suppressing Cirbp expression. More importantly, our results displayed the significantly boosted sensitization of tumor xenografts to hyperthermia by Cirbp silencing in vivo, but ectopic expression of Cirbp almost completely counteracted hyperthermia-mediated tumor cell-killing effect against tumor xenografts in vivo. Mechanistically, Cirbp silencing-induced inhibition of DNA damage repair by inactivating ATM-Chk2 and ATR-Chk1 pathways, decrease in stemness and increase in cell death contributed to hyperthermic sensitization; conversely, Cirbp overexpression-induced promotion of DNA damage repair, increase in stemness and decrease in cell apoptosis contributed to hyperthermia resistance. CONCLUSION Taken together, these findings reveal a previously unrecognized role for Cirbp in positively regulating hyperthermia resistance and suggest that thermomiR-377-3p and its target gene Cirbp represent promising targets for therapeutic hyperthermia.
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Affiliation(s)
- Tao-Yan Lin
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jun-Shuang Jia
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Wei-Ren Luo
- Cancer Research Institute, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Xiao-Lin Lin
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Sheng-Jun Xiao
- Department of Pathology, The Second Affiliated Hospital of Guilin Medical University, Guilin, 541199, China
| | - Jie Yang
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Department of Imaging, Central Hospital of Shaoyang, Shaoyang, 422000, China
| | - Jia-Wei Xia
- The Third People's Hospital of Kunming (The Sixth Affiliated Hospital of Dali University), Kunming, 650041, China
| | - Chen Zhou
- Department of Pathology, The Second Affiliated Hospital of Guilin Medical University, Guilin, 541199, China
| | - Zhi-Hao Zhou
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Shu-Jun Lin
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qi-Wen Li
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhi-Zhi Yang
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ye Lei
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wen-Qing Yang
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, China
| | - Hong-Fen Shen
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Shi-Hao Huang
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Sheng-Chun Wang
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Department of Pathology, School of Basic Medicine, Guangdong Medical University, Dongguan, 523808, China
| | - Lin-Bei Chen
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, China
| | - Yu-Lin Yang
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, China
| | - Shu-Wen Xue
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yong-Long Li
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Guan-Qi Dai
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ying Zhou
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ying-Chun Li
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Fang Wei
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Xiao-Xiang Rong
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guang‑zhou, 510515, China
| | - Xiao-Jun Luo
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Bing-Xia Zhao
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Wen-Hua Huang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Guangdong Medical Innovation Platform for Translation of 3D Printing Application, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, 510000, China.
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Guangdong Medical University, Zhanjiang, 524001, China.
| | - Dong Xiao
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
- Guangzhou Southern Medical Laboratory Animal Sci.&Tech. Co.,Ltd, Guangzhou, 510515, China.
- National Demonstration Center for Experimental Education of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Department of Stomatology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
| | - Yan Sun
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
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Zeng S, Tian Z, Gong F, Wang F, Xie M, Chen X, Liao S. The comparison of fluidized positioners and traditional gel pads for skin protection in neurosurgical patients undergoing lateral and prone positions: A retrospective analysis with propensity score matching method. Int Wound J 2024; 21:e14662. [PMID: 38402555 PMCID: PMC10830910 DOI: 10.1111/iwj.14662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 12/24/2023] [Accepted: 12/29/2023] [Indexed: 02/26/2024] Open
Abstract
To compare fluidized positioners and gel pads for skin protection in neurosurgery patients placed in lateral and prone positions. It is one of the major challenges that operating room nurses face in protecting the skin during the long duration of neurosurgery. Currently, there are increasing tools available to protect the skin under pressure, and various tools practice well in the clinic. Fluidized positioners are newly emerging protective pads that have been clinically effective in protecting the skin, but no studies have compared them to previous pads. This is a retrospective cohort study. Data from 706 patients who underwent neurosurgery between January 2018 and December 2021 were systemically reviewed. Patients undergoing long-term neurosurgery in the neurosurgical lateral and prone positions were divided into two groups: fluidized positioners or gel pads. Propensity score matching (PSM) was performed for group balance (1:1 ratio) using the following baseline characteristics: age, gender, ASA (American Society of Anesthesiologists) classification, duration of surgery, surgical position and underlying disease. The incidence of decubitus, and length of stay (LOS) in the hospital were compared between the two groups. The results were obtained for 394 patients in the fluidized positioner group with a 3.8% incidence of pressure ulcers and 312 patients in the gel pad group with an 8% incidence of pressure ulcers, which were unbalanced in terms of gender, ASA, hypertension and diabetes data. After a PSM, patients were compared in terms of pressure ulcer incidence (3.7% vs. 7.8%, p = 0.034) and LOS (22.35 vs. 25.65 days, p < 0.001). Fluidized positioners can effectively reduce the incidence of pressure injury in lateral and prone positions of neurosurgery. The results of this study may contribute to the development of policies to prevent the development of pressure ulcers during neurosurgical procedures.
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Affiliation(s)
- Shuyan Zeng
- Operating Theatre, The First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Ziyang Tian
- Operating Theatre, The First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Fengqiu Gong
- Operating Theatre, The First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Fujuan Wang
- Operating Theatre, The First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Manying Xie
- Operating Theatre, The First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - XiaoJun Chen
- Operating Theatre, The First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - ShuFeng Liao
- Operating Theatre, The First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
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Zhou T, Gan Z, Zhang H, Liu Z, Pu Y, Rong M. A novel technique to harvest bone autografts with mild local hyperthermia and enhanced osteogenic bone quality: a preclinical study in dogs. BMC Oral Health 2023; 23:838. [PMID: 37936153 PMCID: PMC10631188 DOI: 10.1186/s12903-023-03611-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023] Open
Abstract
BACKGROUND Guided bone regeneration (GBR) involves collecting bone autografts with high bio-quality and efficiency. The current non-irrigated low-speed drilling has been limited for broader application in bone autograft harvest due to its low efficiency, inability to conduct buccal cortical perforation, and dependence on simultaneous implant placement. Increasing the drilling speed helps improve the efficiency but may incur thermal-mechanical bone damage. Most studies have addressed thermal reactions during bone drilling on non-vital models, which is irrelevant to clinical scenarios. Little has been known about bone's in vivo thermal profiles under non-irrigated higher-speed drilling and its influences on the resulting bone chips. AIM A novel technique for bone harvest and cortical perforation via in-situ non-irrigated higher-speed drilling was proposed and investigated for the first time. METHODS The third mandible premolars of eight beagles were extracted and healed for three months. Sixteen partial edentulous sites (left and right) were randomized into four groups for bone autograft harvest without irrigation: chisel, 50 rpm drilling, 500 rpm drilling, and 1000 rpm drilling. Bone chips were harvested on the buccal plates of the missing tooth. An infrared camera and an implantable thermocouple collaboratively monitored in vivo real-time bone temperature at the drilling sites. In vitro performances of cells from bone chips, including cell number, viability, proliferation, migration, ALP activity, in vitro mineralization, mRNA transcriptional level of osteogenic genes and heat shock protein 70 (HSP-70), and HSP-70 expression at the protein level were also studied. RESULTS 500 rpm produced mild local hyperthermia with a 2-6 °C temperature rise both on the cortical surface and inside the cortical bone. It also held comparable or enhanced cell performances such as cell number, viability, proliferation, migration, ALP activity, in vitro mineralization, and osteogenic genes expression. CONCLUSIONS In-situ non-irrigated higher-speed drilling at 500 rpm using a screw drill is versatile, efficient, and thermal friendly and improves the bio-quality of bone chips. Our novel technique holds clinical translational potential in GBR application.
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Affiliation(s)
- Tengfei Zhou
- Department of Periodontology and Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Zekun Gan
- Department of Periodontology and Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Hanfei Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Ziyi Liu
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Yiping Pu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China.
| | - Mingdeng Rong
- Department of Periodontology and Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China.
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Hu L, Bai Y, Lai C, Mo L, Li Y, Jiang X, Xu W, He Y, Zhou X, Chen C. Plasma indole-3-aldehyde as a novel biomarker of acute kidney injury after cardiac surgery: a reanalysis using prospective metabolomic data. BMC Anesthesiol 2023; 23:364. [PMID: 37936070 PMCID: PMC10629179 DOI: 10.1186/s12871-023-02330-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 10/30/2023] [Indexed: 11/09/2023] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is a frequent complication of cardiac surgery that poses significant risks for both the development of chronic kidney diseases and mortality. Our previous study illustrated that heightened expression levels of faecal and plasma indole metabolites before the operation were associated with ischemic AKI. In this study, we aimed to validate the supposition that plasma indole-3-aldehyde (I3A) could serve as a predictive biomarker for AKI in patients undergoing cardiac surgery. METHODS This statistical reanalysis utilized AKI metabolomic data from patients scheduled for cardiac surgery between April 2022 and July 2022 in two tertiary hospitals. Faecal and blood samples were prospectively collected before surgery within 24 h, and variables related to the preoperative, intraoperative, and postoperative periods were recorded. AKI diagnosis was based on the Kidney Disease Improving Global Outcomes criteria. RESULTS In this study, 55 patients who underwent cardiac surgery were analyzed, and 27 of them (49.1%) developed postoperative AKI. Before surgery, these patients had significantly higher levels of faecal indole metabolites, including skatole, trans-3-indoleacrylic acid, and 5-methoxyindoleacetic acid. The plasma I3A, clinical model that considered perioperative and intraoperative variables, and their combination had area under the receiver operating characteristic curve (ROC) values of 0.79 (95% CI 0.67-0.91), 0.78 (95% CI 0.66-0.90), and 0.84 (95% CI 0.74-0.94) for predicting AKI, respectively. Furthermore, by utilizing net reclassification improvement and integrated discrimination improvement, plasma I3A showed significant improvements in risk reclassification compared to the clinical model alone. CONCLUSIONS The dysregulation of gut microbiota metabolism in patients scheduled for cardiac surgery can result in an increase in indoles from tryptophan metabolism, which may be associated with postoperative acute kidney injury (AKI). This suggests that indoles may serve as a predictive biomarker for AKI in patients undergoing cardiac surgery.
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Affiliation(s)
- Linhui Hu
- Department of Critical Care Medicine, Maoming People's Hospital, No. 101 Weimin Road, Maoming, 525000, Guangdong Province, China
- Center of Scientific Research, Maoming People's Hospital, No. 101 Weimin Road, Maoming, 525000, Guangdong Province, China
| | - Yunpeng Bai
- Center of Scientific Research, Maoming People's Hospital, No. 101 Weimin Road, Maoming, 525000, Guangdong Province, China
| | - Changchun Lai
- Department of Clinical Laboratory, Maoming People's Hospital, No. 101 Weimin Road, Maoming, 525000, Guangdong Province, China
| | - Leitong Mo
- Department of Coronary Care Unit, Maoming People's Hospital, No. 101 Weimin Road, Maoming, 525000, Guangdong Province, China
| | - Ying Li
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, No. 106 Zhongshan Er Road, Guangzhou, 510080, Guangdong Province, China
| | - Xinyi Jiang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, No. 106 Zhongshan Er Road, Guangzhou, 510080, Guangdong Province, China
- School of Medicine, South China University of Technology, No. 382 Waihuan East Road, Guangzhou, 510006, Guangdong Province, China
| | - Wang Xu
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, No. 106 Zhongshan Er Road, Guangzhou, 510080, Guangdong Province, China
- The Second School of Clinical Medicine, Southern Medical University, No. 1023 Shatai South Road, Guangzhou, 510515, Guangdong Province, China
| | - Yuemei He
- Center of Scientific Research, Maoming People's Hospital, No. 101 Weimin Road, Maoming, 525000, Guangdong Province, China
| | - Xinjuan Zhou
- Center of Scientific Research, Maoming People's Hospital, No. 101 Weimin Road, Maoming, 525000, Guangdong Province, China
| | - Chunbo Chen
- Department of Critical Care Medicine, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
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Shi Z, Zhang J, Zhang H, Wei H, Lu T, Chen X, Li H, Yang J, Liu Z. Response and driving factors of soil enzyme activity related to acid rain: a meta-analysis. Environ Sci Pollut Res Int 2023; 30:105072-105083. [PMID: 37730980 DOI: 10.1007/s11356-023-29585-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 08/25/2023] [Indexed: 09/22/2023]
Abstract
As a global pollution, acid rain can significantly alter soil physicochemical and biochemical processes, but our knowledge of how acid rain affects soil enzyme activity is still limited. To quantify the overall magnitude and direction of the response of soil enzyme activity to acid rain, we conducted a linear mixed model-based meta-analysis of 40 articles. Our analysis revealed that acid rain decreased enzyme activity by an average of 4.87%. Soil dehydrogenase and protease activities were particularly sensitive to acid rain, with significant inhibitions observed. The effect of acid rain was moderated by acid rain intensity (i.e., H+ addition rate, total H+ added, and acid rain pH) and soil fraction (i.e., rhizosphere and bulk soil). Structural equation modelling further revealed that acid rain suppressed soil microbial biomass by acidifying the soil and that the reduction in microbial biomass directly led to the inhibition of enzyme activity in bulk soil. However, the enzyme activity in the rhizosphere soil was not affected by acid rain due to the rhizosphere effect, which was also not impacted by the decreased soil pH induced by acid rain in rhizosphere. Our study gives an insight into how bulk soil enzyme activity is impacted by acid rain and highlights the need to incorporate rhizosphere processes into acid rain-terrestrial ecosystem models.
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Affiliation(s)
- Zhaoji Shi
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Jiaen Zhang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China.
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China.
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China.
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, 510642, China.
| | - Huicheng Zhang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Hui Wei
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, 510642, China
| | - Tiantian Lu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Xuan Chen
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Hongru Li
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Jiayue Yang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Ziqiang Liu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, 510642, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
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Wang Q, Li MJ, Zhang JE, Liu ZQ, Yang K, Li HR, Luo MZ. Suitable stocking density of fish in paddy field contributes positively to 2-acetyl-1-pyrroline synthesis in grain and improves rice quality. J Sci Food Agric 2023; 103:5126-5137. [PMID: 37005496 DOI: 10.1002/jsfa.12597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 02/28/2023] [Accepted: 04/02/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND Fragrant rice is increasingly popular with the public owing to its fresh aroma, and 2-acetyl-1-pyrroline (2-AP) is the main characteristic component of the aroma in fragrant rice. Rice-fish co-culture is an environmentally friendly practice in sustainable agriculture. However, the effect of rice-fish co-culture on 2-AP in grains has received little study. A conventional fragrant rice (Meixiangzhan 2) was used, and a related field experiment during three rice growing seasons was conducted to investigate the effects of rice-fish co-culture on 2-AP, as well as the rice quality, yield, plant nutrients, and precursors and enzyme activities of 2-AP biosynthesis in leaves. This study involved three fish stocking density treatments (i.e. 9000 (D1), 15 000 (D2), and 21 000 (D3) fish fries per hectare) and rice monocropping. RESULTS Rice-fish co-culture increased the 2-AP content in grains by 2.5-49.4% over that of the monocropping, with significant increases in the early and late rice seasons of 2020. Rice-fish co-culture treatments significantly promoted seed-setting rates by 3.39-7.65%, and improved leaf nutrients and rice quality. Notably, the D2 treatment significantly increased leaf total nitrogen (TN), total phosphorus (TP), and total potassium (TK) contents and the head rice rate at maturity stage, while significantly decreased chalkiness degree. There was no significant difference in rice yield. CONCLUSION Rice-fish co-culture had positive effects on 2-AP synthesis, rice quality, seed-setting rates, and plant nutrient contents. The better stocking density of field fish for rice-fish co-culture in this study was 15 000 fish ha-1 . © 2023 Society of Chemical Industry.
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Affiliation(s)
- Qi Wang
- Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, China
- College of Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, South China Agricultural University, Guangzhou, China
| | - Mei-Juan Li
- Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, South China Agricultural University, Guangzhou, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Jia-En Zhang
- Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, South China Agricultural University, Guangzhou, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China
| | - Zi-Qiang Liu
- Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, South China Agricultural University, Guangzhou, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Kai Yang
- Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, China
- College of Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, South China Agricultural University, Guangzhou, China
| | - Hong-Ru Li
- Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, South China Agricultural University, Guangzhou, China
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Ming-Zhu Luo
- Guangdong Provincial Key Laboratory of Eco-circular Agriculture, South China Agricultural University, Guangzhou, China
- College of Agriculture, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, South China Agricultural University, Guangzhou, China
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Zhu Y, Xiong H, Liu S, Wu D, Zhang X, Shi X, Qu J, Chen L, Liu Z, Peng B, Zhang D. Combining MOE Bioinformatics Analysis and In Vitro Pseudovirus Neutralization Assays to Predict the Neutralizing Ability of CV30 Monoclonal Antibody on SARS-CoV-2 Variants. Viruses 2023; 15:1565. [PMID: 37515251 PMCID: PMC10386485 DOI: 10.3390/v15071565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Combining bioinformatics and in vitro cytology assays, a predictive method was established to quickly evaluate the protective effect of immunity acquired through SARS-CoV-2 infection against variants. Bioinformatics software was first used to predict the changes in the affinity of variant antigens to the CV30 monoclonal antibody by integrating bioinformatics and cytology assays. Then, the ability of the antibody to neutralize the variant antigen was further verified, and the ability of the CV30 to neutralize the new variant strain was predicted through pseudovirus neutralization experiments. The current study has demonstrated that when the Molecular Operating Environment (MOE) predicts |ΔBFE| ≤ 3.0003, it suggests that the CV30 monoclonal antibody exhibits some affinity toward the variant strain and can potentially neutralize it. However, if |ΔBFE| ≥ 4.1539, the CV30 monoclonal antibody does not display any affinity for the variant strain and cannot neutralize it. In contrast, if 3.0003 < |ΔBFE| < 4.1539, it is necessary to conduct a series of neutralization tests promptly with the CV30 monoclonal antibody and the variant pseudovirus to obtain results and supplement the existing method, which is faster than the typical procedures. This approach allows for a rapid assessment of the protective efficacy of natural immunity gained through SARS-CoV-2 infection against variants.
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Affiliation(s)
- Yajuan Zhu
- School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
| | - Husheng Xiong
- School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
| | - Shuang Liu
- School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
| | - Dawei Wu
- School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
| | - Xiaomin Zhang
- Department of Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Xiaolu Shi
- Department of Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Jing Qu
- Department of Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Long Chen
- Department of Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Zheng Liu
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, Chinese University of Hong Kong, Shenzhen 518172, China
| | - Bo Peng
- Department of Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Dingmei Zhang
- School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
- NMPA Key Laboratory for Quality Monitoring and Evaluation of Vaccines and Biological Products, Guangzhou 510080, China
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Bai Y, Huang W, Jiang X, Xu W, Li Y, Wang Y, Huang S, Wu K, Hu L, Chen C. Metabolomic interplay between gut microbiome and plasma metabolome in cardiac surgery-associated acute kidney injury. Rapid Commun Mass Spectrom 2023; 37:e9504. [PMID: 36918294 DOI: 10.1002/rcm.9504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 05/16/2023]
Abstract
RATIONALE Cardiac surgery-associated acute kidney injury (CSA-AKI) is a prevalent complication of cardiac surgery, which may be associated with a great risk of developing chronic kidney disease and mortality. This study aimed to investigate the possible links between gut microbiota metabolism and CSA-AKI. METHODS A prospective cohort of patients who underwent cardiac surgery was continuously recruited, who were further divided into CSA-AKI group and Non-AKI group based on clinical outcomes. Their faecal and plasma samples were collected before surgery and were separately analysed by nontargeted and targeted metabolomics. The differential metabolites related to CSA-AKI were screened out using statistical methods, and altered metabolic pathways were determined by examining the Kyoto Encyclopedia of Genes and Genomes database. RESULTS Nearly 1000 faecal metabolites were detected through high-resolution mass spectrometry (MS) and bioinformatics at high and mid confidence levels, and 49 differential metabolites at high confidence level may perform essential biological functions and provide potential diagnostic indicators. Compared with the Non-AKI group, the patients in the CSA-AKI group displayed dramatic changes in gut microbiota metabolism, including amino acid metabolism, nicotinate and nicotinamide metabolism, purine metabolism and ATP-binding cassette (ABC) transporters. Meanwhile, 188 plasma metabolites were identified and quantified by tandem MS, and 34 differential plasma metabolites were screened out between the two groups using univariate statistical analysis. These differential plasma metabolites were primarily enriched in the following metabolic pathways: sulphur metabolism, amino acid biosynthesis, tryptophan metabolism and ABC transporters. Furthermore, the content of indole metabolites in the faecal and plasma samples of the CSA-AKI group was higher than that of the Non-AKI group. CONCLUSIONS Patients with CSA-AKI may have dysbiosis of their intestinal microbiota and metabolic abnormalities in their gut system before cardiac surgery. Thus, some metabolites and related metabolic pathways may be potential biomarkers and new therapeutic targets for the disease.
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Affiliation(s)
- Yunpeng Bai
- Center of Scientific Research, Maoming People's Hospital, Maoming, China
- Department of Critical Care Medicine, Maoming People's Hospital, Maoming, China
| | - Wendong Huang
- Center of Scientific Research, Maoming People's Hospital, Maoming, China
| | - Xinyi Jiang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Wang Xu
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Ying Li
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yirong Wang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Sumei Huang
- Center of Scientific Research, Maoming People's Hospital, Maoming, China
- Biological Resource Center, Maoming People's Hospital, Maoming, China
| | - Kunyong Wu
- Center of Scientific Research, Maoming People's Hospital, Maoming, China
- Biological Resource Center, Maoming People's Hospital, Maoming, China
| | - Linhui Hu
- Department of Critical Care Medicine, Maoming People's Hospital, Maoming, China
| | - Chunbo Chen
- Department of Critical Care Medicine, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China
- Department of Emergency Medicine, Maoming People's Hospital, Maoming, China
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Gao Q, Li R, Chen Z, Yin W, Liao G, Zhang H, Wang J, Chen Y. Weight self-perception and weight loss attempts in Chinese cardiovascular patients and non-cardiovascular patients: evidence from a population-based study. BMC Public Health 2023; 23:707. [PMID: 37072724 PMCID: PMC10114385 DOI: 10.1186/s12889-023-15380-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/06/2023] [Indexed: 04/20/2023] Open
Abstract
BACKGROUND Weight loss is a significant improvement for individuals with overweight or obesity, especially for cardiovascular patients. The driving effects of weight self-perception and attempts to lose weight are vital in weight management, yet weight misperception is a direct culprit for the undesirability of weight control and obesity prevention. This study aimed to investigate weight self-perception and misperception and weight loss attempts in Chinese adults, especially among cardiovascular and non-cardiovascular patients. METHODS We collected data from China HeartRescue Global Evaluation Baseline Household Survey 2015. Questionnaires were used to assess self-reported weight and cardiovascular patients. We used kappa statistics to check the consistency between weight self-perception and BMI. Logistic regression models were fitted to identify risk factors associated with weight misperception. RESULTS A total of 2690 participants were enrolled in the household survey, while 157 respondents were cardiovascular patients. According to questionnaire results, 43.3% of cardiovascular patients thought they were overweight and obese, while the percentage is 35.3% among non-cardiovascular patients. Kappa statistics indicated higher consistency of self-reported weight and actual weight among cardiovascular patients. Multivariate analysis showed weight misperception was significantly associated with gender, education level, and actual BMI. Lastly, 34.5% of non-cardiovascular patients and 35.0% of cardiovascular patients were trying to lose weight or keep weight. The majority of these people adopted combined strategies of controlling diet and exercise to lose or maintain weight. CONCLUSIONS Weight misperception was highly prevalent among cardiovascular or non-cardiovascular patients. Obese respondents, women, and individuals with lower education levels were more vulnerable to make weight misperception. However, no difference in the purpose of weight loss attempts was indicated among cardiovascular and non-cardiovascular patients.
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Affiliation(s)
- Qingyuan Gao
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, People's Republic of China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Ruotong Li
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, 410078, People's Republic of China
| | - Zhiteng Chen
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, People's Republic of China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Wenyao Yin
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, People's Republic of China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Guanghong Liao
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, People's Republic of China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Haifeng Zhang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, People's Republic of China.
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, 510120, People's Republic of China.
| | - Jingfeng Wang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, People's Republic of China.
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, 510120, People's Republic of China.
| | - Yangxin Chen
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, People's Republic of China.
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, 510120, People's Republic of China.
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Dong H, Xie C, Yao Z, Zhao R, Lin Y, Luo Y, Chen S, Qin Y, Chen Y, Zhang H. PTPRO-related CD8 + T-cell signatures predict prognosis and immunotherapy response in patients with breast cancer. Front Immunol 2022; 13:947841. [PMID: 36003382 PMCID: PMC9393709 DOI: 10.3389/fimmu.2022.947841] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/14/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Poor immunogenicity and extensive immunosuppressive T-cell infiltration in the tumor immune microenvironment (TIME) have been identified as potential barriers to immunotherapy success in "immune-cold" breast cancers. Thus, it is crucial to identify biomarkers that can predict immunotherapy efficacy. Protein tyrosine phosphatase receptor type O (PTPRO) regulates multiple kinases and pathways and has been implied to play a regulatory role in immune cell infiltration in various cancers. METHODS ESTIMATE and single-sample gene set enrichment analysis (ssGSEA) were performed to uncover the TIME landscape. The correlation analysis of PTPRO and immune infiltration was performed to characterize the immune features of PTPRO. Univariate and multivariate Cox analyses were applied to determine the prognostic value of various variables and construct the PTPRO-related CD8+ T-cell signatures (PTSs). The Kaplan-Meier curve and the receiver operating characteristic (ROC) curve were used to estimate the performance of PTS in assessing prognosis and immunotherapy response in multiple validation datasets. RESULTS High PTPRO expression was related to high infiltration levels of CD8+ T cells, as well as macrophages, activated dendritic cells (aDCs), tumor-infiltrating lymphocytes (TILs), and Th1 cells. Given the critical role of CD8+ T cells in the TIME, we focused on the impact of PTPRO expression on CD8+ T-cell infiltration. The prognostic PTS was then constructed using the TCGA training dataset. Further analysis showed that the PTS exhibited favorable prognostic performance in multiple validation datasets. Of note, the PTS could accurately predict the response to immune checkpoint inhibitors (ICIs). CONCLUSION PTPRO significantly impacts CD8+ T-cell infiltration in breast cancer, suggesting a potential role of immunomodulation. PTPRO-based PTS provides a new immune cell paradigm for prognosis, which is valuable for immunotherapy decisions in cancer patients.
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Affiliation(s)
- Hongmei Dong
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou, China
| | - Chaoyu Xie
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou, China
| | - Zhimeng Yao
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou, China
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Ruijun Zhao
- Department of Breast Surgery, The Third Hospital of Nanchang, Nanchang, China
| | - Yusheng Lin
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou, China
- Department of Hematology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Graduate School, Shantou University Medical College, Shantou, China
| | - Yichen Luo
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou, China
| | - Shuanglong Chen
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou, China
| | - Yanfang Qin
- Department of Pathology, School of Medicine, Jinan University, Guangzhou, China
| | - Yexi Chen
- Department of General Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Hao Zhang
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
- Department of General Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, China
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, and Minister of Education Key Laboratory of Tumor Molecular Biology, Jinan University, Guangzhou, China
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Jiang XW, Huang TS, Xie L, Chen SZ, Wang SD, Huang ZW, Li XY, Ling WP. Development of a diagnostic assay by three-tube multiplex real-time PCR for simultaneous detection of nine microorganisms causing acute respiratory infections. Sci Rep 2022; 12:13306. [PMID: 35922526 PMCID: PMC9427838 DOI: 10.1038/s41598-022-15543-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 06/24/2022] [Indexed: 11/17/2022] Open
Abstract
Acute respiratory infections are widespread in vulnerable populations of all ages and are characterized by a variety of symptoms. The underlying infection can be caused by a multitude of microorganisms, including viruses and bacteria. Early detection of respiratory infections through rapid pathogen screening is vital in averting infectious respiratory disease epidemics. This study utilized a multiplex real-time PCR system to develop a three-tube reverse transcription-PCR (RT-PCR) assay, enabling simultaneously detect nine respiratory pathogens, including: influenza A and B, adenovirus, respiratory syncytial virus (RSV), Streptococcus pneumoniae, Legionella pneumophila, Haemophilus influenzae, Chlamydia pneumoniae, and Mycoplasma pneumoniae. This technique utilizes a one-step assay, with specifically designed TaqMan primer-probe sets combined in the same tube. This assay provided rapid and simplified detection of the nine prevalent pathogens, as well as increased sensitivity and reduced cross-contamination. This assay was evaluated using 25 related viral/bacterial strains as positive references, the other 25 irrelevant strains as negative controls, and clinical specimens from 179 patients. All positive strains were detected with no amplification of the non-target microorganism mixtures and the assay's detection limits ranged between 250-500 copies/ml (1.25-2.5 copies/reaction). A total of 167 (93.3%) samples tested positive for at least one of the pathogens identified; 109 of these samples were from patients confirmed to have RSV infections. The diagnostic accuracy of our assay was further confirmed by matching results from classical direct immunofluorescence assay and nucleotide sequencing. These data demonstrate the innovative multiplex real-time PCR assay as a promising alternative to the current approaches used for early screening of acute respiratory infections.
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Affiliation(s)
- Xi-Wen Jiang
- Research Institute, DAAN Gene Co., Ltd., No. 19 Xiangshan Road, Guangzhou, China.
- The Medicine and Biological Engineering Technology Research Center of the Ministry of Health, Guangzhou, China.
| | - Tao-Sheng Huang
- Research Institute, DAAN Gene Co., Ltd., No. 19 Xiangshan Road, Guangzhou, China
- The Medicine and Biological Engineering Technology Research Center of the Ministry of Health, Guangzhou, China
| | - Long Xie
- Clinical and Translational Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Si-Ze Chen
- Central Laboratory, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- The Precise Therapy Engineering Technology Research Center of Guangdong Province for Esophageal Cancer, Guangzhou, China
| | - Shi-Dong Wang
- Research Institute, DAAN Gene Co., Ltd., No. 19 Xiangshan Road, Guangzhou, China
- The Medicine and Biological Engineering Technology Research Center of the Ministry of Health, Guangzhou, China
| | - Zhi-Wen Huang
- Research Institute, DAAN Gene Co., Ltd., No. 19 Xiangshan Road, Guangzhou, China
- The Medicine and Biological Engineering Technology Research Center of the Ministry of Health, Guangzhou, China
| | - Xin-Yu Li
- Research Institute, DAAN Gene Co., Ltd., No. 19 Xiangshan Road, Guangzhou, China
- The Medicine and Biological Engineering Technology Research Center of the Ministry of Health, Guangzhou, China
| | - Wei-Ping Ling
- Research Institute, DAAN Gene Co., Ltd., No. 19 Xiangshan Road, Guangzhou, China
- The Medicine and Biological Engineering Technology Research Center of the Ministry of Health, Guangzhou, China
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14
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Rong Y, Jiang Z, Wu W, Chen Q, Wei C, Fan Z, Chen H. Direct Estimation of Choroidal Thickness in Optical Coherence Tomography Images with Convolutional Neural Networks. J Clin Med 2022; 11:3203. [PMID: 35683590 PMCID: PMC9181751 DOI: 10.3390/jcm11113203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/24/2022] [Accepted: 06/02/2022] [Indexed: 11/17/2022] Open
Abstract
Automatic and accurate estimation of choroidal thickness plays a very important role in a computer-aided system for eye diseases. One of the most common methods for automatic estimation of choroidal thickness is segmentation-based methods, in which the boundaries of the choroid are first detected from optical coherence tomography (OCT) images. The choroidal thickness is then computed based on the detected boundaries. A shortcoming in the segmentation-based methods is that the estimating precision greatly depends on the segmentation results. To avoid the dependence on the segmentation step, in this paper, we propose a direct method based on convolutional neural networks (CNNs) for estimating choroidal thickness without segmentation. Concretely, a B-scan image is first cropped into several patches. A trained CNN model is then used to estimate the choroidal thickness for each patch. The mean thickness of the choroid in the B-scan is obtained by taking the average of the choroidal thickness on each patch. Then, 150 OCT volumes are collected to evaluate the proposed method. The experiments show that the results obtained by the proposed method are very competitive with those obtained by segmentation-based methods, which indicates that direct estimation of choroidal thickness is very promising.
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Affiliation(s)
- Yibiao Rong
- College of Engineering, Shantou University, Shantou 515063, China
- Key Laboratory of Digital Signal and Image Processing of Guangdong Provincial, Shantou University, Shantou 515063, China
| | - Zehua Jiang
- Joint Shantou International Eye Center, Shantou University and the Chinese University of Hong Kong, Shantou 515051, China
- Medical College, Shantou University, Shantou 515063, China
| | - Weihang Wu
- College of Engineering, Shantou University, Shantou 515063, China
- Key Laboratory of Digital Signal and Image Processing of Guangdong Provincial, Shantou University, Shantou 515063, China
| | - Qifeng Chen
- College of Engineering, Shantou University, Shantou 515063, China
- Key Laboratory of Digital Signal and Image Processing of Guangdong Provincial, Shantou University, Shantou 515063, China
| | - Chuliang Wei
- College of Engineering, Shantou University, Shantou 515063, China
- Key Laboratory of Digital Signal and Image Processing of Guangdong Provincial, Shantou University, Shantou 515063, China
| | - Zhun Fan
- College of Engineering, Shantou University, Shantou 515063, China
- Key Laboratory of Digital Signal and Image Processing of Guangdong Provincial, Shantou University, Shantou 515063, China
| | - Haoyu Chen
- Joint Shantou International Eye Center, Shantou University and the Chinese University of Hong Kong, Shantou 515051, China
- Medical College, Shantou University, Shantou 515063, China
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15
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Luo Y, Du L, Yao Z, Liu F, Li K, Li F, Zhu J, Coppes RP, Zhang D, Pan Y, Gao S, Zhang H. Generation and Application of Inducible Chimeric RNA ASTN2-PAPPAas Knockin Mouse Model. Cells 2022; 11:277. [PMID: 35053393 PMCID: PMC8773765 DOI: 10.3390/cells11020277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/27/2021] [Accepted: 01/07/2022] [Indexed: 02/05/2023] Open
Abstract
Chimeric RNAs (chiRNAs) play many previously unrecognized roles in different diseases including cancer. They can not only be used as biomarkers for diagnosis and prognosis of various diseases but also serve as potential therapeutic targets. In order to better understand the roles of chiRNAs in pathogenesis, we inserted human sequences into mouse genome and established a knockin mouse model of the tamoxifen-inducible expression of ASTN2-PAPPA antisense chimeric RNA (A-PaschiRNA). Mice carrying the A-PaschiRNA knockin gene do not display any apparent abnormalities in growth, fertility, histological, hematopoietic, and biochemical indices. Using this model, we dissected the role of A-PaschiRNA in chemical carcinogen 4-nitroquinoline 1-oxide (4NQO)-induced carcinogenesis of esophageal squamous cell carcinoma (ESCC). To our knowledge, we are the first to generate a chiRNA knockin mouse model using the Cre-loxP system. The model could be used to explore the roles of chiRNA in pathogenesis and potential targeted therapies.
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Affiliation(s)
- Yichen Luo
- Institute of Precision Cancer Medicine and Pathology, School of Medicine and Department of General Surgery, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou 510632, China
| | - Liang Du
- Department of Biomedical Sciences of Cells &
- Systems, Section Molecular Cell Biology and Radiation Oncology, University Medical Center Groningen, University of Groningen, 9700 AD Groningen, The Netherlands
- Graduate School, Shantou University Medical College, Shantou 515041, China
| | - Zhimeng Yao
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou 510632, China
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Fan Liu
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Kai Li
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Feifei Li
- Department of Oncology, People’s Hospital of Leshan, Leshan 614099, China;
| | - Jianlin Zhu
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou 510632, China
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Robert P. Coppes
- Department of Biomedical Sciences of Cells &
- Systems, Section Molecular Cell Biology and Radiation Oncology, University Medical Center Groningen, University of Groningen, 9700 AD Groningen, The Netherlands
| | - Dianzheng Zhang
- Department of Bio-Medical Sciences, Philadelphia College of Osteopathic Medicine, 4170 City Avenue, Philadelphia, PA 19131, USA
| | - Yunlong Pan
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou 510632, China
| | - Shegan Gao
- Henan Key Laboratory of Cancer Epigenetics, College of Clinical Medicine, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang 471000, China
| | - Hao Zhang
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou 510632, China
- Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
- Minister of Education Key Laboratory of Tumor Molecular Biology, Jinan University, Guangzhou 510632, China
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Zhuang Z, Chen Z, Chen H, Chen B, Zhou J, Liu A, Luo J. Using Local Anesthesia for Burr Hole Surgery of Chronic Subdural Hematoma Reduces Postoperative Complications, Length of Stay, and Hospitalization Cost: A Retrospective Cohort Study From a Single Center. Front Surg 2022; 9:783885. [PMID: 35433811 PMCID: PMC9010536 DOI: 10.3389/fsurg.2022.783885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 03/11/2022] [Indexed: 02/05/2023] Open
Abstract
PURPOSE The purpose of the current study was to compare the effects of local anesthesia (LA) and general anesthesia (GA) on the surgical process and postoperative recovery of patients with unilateral chronic subdural hematoma (CSDH). PATIENTS AND METHODS A retrospective cohort study was conducted on patients with unilateral CSDH who underwent burr hole surgery between the years 2013 and 2018. Patients who received local anesthesia were allocated to the LA group, and the patients who received general anesthesia were allocated to the GA group. The clinical data, postoperative complication, length of stay, and hospitalization cost of these two groups were compared and analyzed. RESULTS Data from 105 patients was collected for this study. Fifty one patients were assigned to the LA group and 54 to GA group. The duration of anesthesia and operation of the LA group was 37.71 (10.55) min; while for the GA group the duration was 56.04 (8.37) min (p < 0.001). The time from operation to discharge in GA group was greatly longer than that in LA group [(8.51 (1.49) days vs. 10.46 (2.34) days, respectively; p < 0.001]. Hospitalization cost for LA group was 2,721.54 (504.66) USD, which was significantly lesser than that for GA patients [3,314.82 (493.52) USD; p < 0.001]. The total number of complications in LA patients was less than that in GA patients [6 vs. 29 cases, respectively; p < 0.001]. The number of patients with residual hematoma in the LA group was <that in the GA group (p = 0.014). CONCLUSION As compared to GA, LA might be a simpler, safer, and more effective method for burr hole surgery of CSDH to promote patients' recovery. However, further research is still required to confirm this conclusion.
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Affiliation(s)
- Zerui Zhuang
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Neurosurgery, Shantou Central Hospital, Shantou, China
- Department of Neurosurgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Zelin Chen
- Department of Neurosurgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Hui Chen
- Department of Neurosurgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Bin Chen
- Department of Neurosurgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Jianzhi Zhou
- Department of Neurosurgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Anmin Liu
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jianming Luo
- Department of Neurosurgery, Second Affiliated Hospital, Shantou University Medical College, Shantou, China
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Li W, Zhuang D, Li H, Zhao M, Zhu E, Xie B, Chen J, Zhao M. Recombinant pseudorabies virus with gI/gE deletion generated by overlapping polymerase chain reaction and homologous recombination technology induces protection against the PRV variant PRV-GD2013. BMC Vet Res 2021; 17:164. [PMID: 33853597 PMCID: PMC8048318 DOI: 10.1186/s12917-021-02861-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 03/27/2021] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Since 2011, numerous highly virulent and antigenic variant viral strains have been reported in pigs that were vaccinated against the swine pseudorabies virus. These infections have led to substantial economic losses in the Chinese swine industry. RESULTS This study, constructed a novel recombinant vaccine strain with gI/gE deletion (PRV-GD2013-ΔgI/gE) by overlapping PCR and homologous recombination technology. The growth curves and plaque morphology of the recombinant virus were similar to those of the parental strain. However, PRV-GD2013-ΔgI/gE infection was significantly attenuated in mice compared with that of PRV-GD2013. Two-week-old piglets had normal rectal temperatures and displayed no clinical symptoms after being inoculated with 105 TCID50 PRV-GD2013-ΔgI/gE, indicating that the recombinant virus was avirulent in piglets. Piglets were immunized with different doses of PRV-GD2013-ΔgI/gE, or a single dose of Bartha-K61 or DMEM, and infected with PRV-GD2013 at 14 days post-vaccination. Piglets given high doses of PRV-GD2013-ΔgI/gE showed no obvious clinical symptoms, and their antibody levels were higher than those of other groups, indicating that the piglets were completely protected from PRV-GD2013. CONCLUSIONS The PRV-GD2013-ΔgI/gE vaccine strain could be effective for immunizing Chinese swine herds against the pseudorabies virus (PRV) strain.
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Affiliation(s)
- Wenhui Li
- College of Veterinary Medicine, South China Agricultural University, 483 Wu Shan Road, Tianhe District, Guangzhou, 510642, Guangdong Province, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Dijing Zhuang
- College of Veterinary Medicine, South China Agricultural University, 483 Wu Shan Road, Tianhe District, Guangzhou, 510642, Guangdong Province, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Hong Li
- Shandong Qianxi Agriculture & Animal Husbandry Development Co., Ltd., Zaozhuang, China
| | - Mengpo Zhao
- College of Veterinary Medicine, South China Agricultural University, 483 Wu Shan Road, Tianhe District, Guangzhou, 510642, Guangdong Province, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Erpeng Zhu
- College of Veterinary Medicine, South China Agricultural University, 483 Wu Shan Road, Tianhe District, Guangzhou, 510642, Guangdong Province, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Baoming Xie
- College of Veterinary Medicine, South China Agricultural University, 483 Wu Shan Road, Tianhe District, Guangzhou, 510642, Guangdong Province, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Jinding Chen
- College of Veterinary Medicine, South China Agricultural University, 483 Wu Shan Road, Tianhe District, Guangzhou, 510642, Guangdong Province, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Mingqiu Zhao
- College of Veterinary Medicine, South China Agricultural University, 483 Wu Shan Road, Tianhe District, Guangzhou, 510642, Guangdong Province, China.
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.
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18
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Liu WK, Chen DH, Tan WP, Qiu SY, Xu D, Zhang L, Gu SJ, Zhou R, Liu Q. Paramyxoviruses respiratory syncytial virus, parainfluenza virus, and human metapneumovirus infection in pediatric hospitalized patients and climate correlation in a subtropical region of southern China: a 7-year survey. Eur J Clin Microbiol Infect Dis 2019; 38:2355-2364. [PMID: 31489496 PMCID: PMC6858468 DOI: 10.1007/s10096-019-03693-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 08/26/2019] [Indexed: 11/11/2022]
Abstract
To investigate the features of paramyxovirus respiratory syncytial virus (RSV), parainfluenza virus (PIV), and human metapneumovirus (HMPV) infection and determine the effect of meteorological conditions in Guangzhou, a subtropical region of southern China. We collected 11,398 respiratory samples from hospitalized pediatric patients with acute respiratory illness between July 2009 and June 2016 in Guangzhou. The samples were tested simultaneously for 18 respiratory pathogens using real-time PCR. Local meteorological data were also collected for correlation analysis. Of 11,398 patients tested, 5606 (49.2%) patients tested positive for one or more pathogens; RSV, PIV, and HMPV were the first, sixth, and ninth most frequently detected pathogens, in 1690 (14.8%), 502 (4.4%), and 321 (2.8%) patients, respectively. A total 17.9% (4605/5606) of patients with positive results had coinfection with other pathogens. Significant differences were found in the prevalence of RSV, PIV, and HMPV among all age groups (p < 0.001). RSV and HMPV had similar seasonal patterns, with two prevalence peaks every year. PIV appeared alternatively with RSV and HMPV. Multiple linear regression models were established for RSV, PIV, and HMPV prevalence and meteorological factors (p < 0.05). RSV and PIV incidence was negatively correlated with monthly mean relative humidity; RSV and HMPV incidence was negatively correlated with sunshine duration; PIV incidence was positively correlated with mean temperature. We described the features of paramyxovirus infection in a subtropical region of China and highlighted the correlation with meteorological factors. These findings will assist public health authorities and clinicians in improving strategies for controlling paramyxovirus infection.
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Affiliation(s)
- Wen-Kuan Liu
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, China
| | - De-Hui Chen
- Department of Pediatrics, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wei-Ping Tan
- Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shu-Yan Qiu
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, China
| | - Duo Xu
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, China
| | - Li Zhang
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, China
| | - Shu-Jun Gu
- Department of Pediatrics, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Rong Zhou
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, China
| | - Qian Liu
- Scientific Research Center, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Department of Pediatrics, Dongguan Eighth People’s Hospital, Dongguan, China
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Tian J, Cheng LHH, Cui X, Lei XX, Tang JB, Cheng B. Application of standardized platelet-rich plasma in elderly patients with complex wounds. Wound Repair Regen 2019; 27:268-276. [PMID: 30693614 DOI: 10.1111/wrr.12702] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/16/2019] [Accepted: 01/23/2019] [Indexed: 02/05/2023]
Abstract
In recent years, autologous platelet-rich plasma (PRP) derivatives have been used widely in the regeneration and repair of tissue, but a standard definition and preparation method for PRP are lacking. We developed a standardized method using platelet indices as quality-control indicators for PRP preparation. Twenty-one elderly patients (9 males, 12 females) with complex wounds were treated with standardized platelet-rich plasma (S-PRP). The platelet count in PRP after the second centrifugation was 1,069-1,436 × 109 /L. We adjusted the platelet concentration in PRP after a second centrifugation to 1,000 × 109 /L according to a formula using platelet-poor plasma (PPP). The standardized preparation method that we developed gave S-PRP with a relatively uniform platelet concentration. The wounds of 21 patients showed accelerated healing after S-PRP treatment, and there were no obvious side effects during treatment. These data suggest that our preparation method of S-PRP, using platelet indices as quality-control indicators with platelet count of 1,000 × 109 /L could be used for the treatment of complex wounds in the elderly. The preparation method of S-PRP proposed in the present study may be a simple and effective method of PRP quality control.
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Affiliation(s)
- Ju Tian
- Department of Plastic Surgery, People's Hospital of Zhongshan City, Zhongshan, Guangdong, China
- Department of Plastic Surgery, General Hospital of Southern Theater Command, PLA, Guangzhou, Guangdong, China
- The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLA, Guangzhou, Guangdong, China
| | - Liu-Hang-Hang Cheng
- Graduate School, Shantou University Medical College, Shantou, Guangdong, China
| | - Xiao Cui
- Department of Plastic Surgery, General Hospital of Southern Theater Command, PLA, Guangzhou, Guangdong, China
- The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLA, Guangzhou, Guangdong, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xiao-Xuan Lei
- Department of Plastic Surgery, General Hospital of Southern Theater Command, PLA, Guangzhou, Guangdong, China
- The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLA, Guangzhou, Guangdong, China
| | - Jian-Bing Tang
- Department of Plastic Surgery, General Hospital of Southern Theater Command, PLA, Guangzhou, Guangdong, China
| | - Biao Cheng
- Department of Plastic Surgery, General Hospital of Southern Theater Command, PLA, Guangzhou, Guangdong, China
- The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLA, Guangzhou, Guangdong, China
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20
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Wang M, Wu N, Huang H, Luo J, Lan G, Zeng Y, Wang X, Xiong H, Han D, Tan H. Large-depth-of-field full-field optical angiography. J Biophotonics 2019; 12:e201800329. [PMID: 30315638 DOI: 10.1002/jbio.201800329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/11/2018] [Accepted: 10/11/2018] [Indexed: 06/08/2023]
Abstract
A large-depth-of-field full-field optical angiography (LD-FFOA) method is developed to expand the depth-of-field (DOF) using a contrast pyramid fusion algorithm (CPFA). The absorption intensity fluctuation modulation effect is utilized to obtain full-field optical angiography (FFOA) images at different focus positions. The CPFA is used to process these FFOA images with different focuses. By selecting high-contrast areas, the CPFA can highlight the characteristics and details of blood vessels to obtain LD-FFOA images. In the optimal case of the proposed method, the DOF for FFOA is more than tripled using 10 differently focused FFOA images. Both the phantom and animal experimental results show that the LD-FFOA resolves FFOA defocusing issues induced by surface and thickness inhomogeneities in biological samples. The proposed method can be potentially applied to practical biological experiments.
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Affiliation(s)
- Mingyi Wang
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
| | - Nanshou Wu
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
| | - Hongheng Huang
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
| | - Jiaxiong Luo
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
| | - Gongpu Lan
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
| | - Yaguang Zeng
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
| | - Xuehua Wang
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
| | - Honglian Xiong
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
| | - Dingan Han
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
| | - Haishu Tan
- School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, China
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Liu YM, Liu W, Jia JS, Chen BZ, Chen HW, Liu Y, Bie YN, Gu P, Sun Y, Xiao D, Gu WW. Abnormalities of hair structure and skin histology derived from CRISPR/Cas9-based knockout of phospholipase C-delta 1 in mice. J Transl Med 2018; 16:141. [PMID: 29793503 PMCID: PMC5968471 DOI: 10.1186/s12967-018-1512-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/08/2018] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Hairless mice have been widely applied in skin-related researches, while hairless pigs will be an ideal model for skin-related study and other biomedical researches because of the similarity of skin structure with humans. The previous study revealed that hairlessness phenotype in nude mice is caused by insufficient expression of phospholipase C-delta 1 (PLCD1), an essential molecule downstream of Foxn1, which encouraged us to generate PLCD1-deficient pigs. In this study, we plan to firstly produce PLCD1 knockout (KO) mice by CRISPR/Cas9 technology, which will lay a solid foundation for the generation of hairless PLCD1 KO pigs. METHODS Generation of PLCD1 sgRNAs and Cas 9 mRNA was performed as described (Shao in Nat Protoc 9:2493-2512, 2014). PLCD1-modified mice (F0) were generated via co-microinjection of PLCD1-sgRNA and Cas9 mRNA into the cytoplasm of C57BL/6J zygotes. Homozygous PLCD1-deficient mice (F1) were obtained by intercrossing of F0 mice with the similar mutation. RESULTS PLCD1-modified mice (F0) showed progressive hair loss after birth and the genotype of CRISPR/Cas9-induced mutations in exon 2 of PLCD1 locus, suggesting the sgRNA is effective to cause mutations that lead to hair growth defect. Homozygous PLCD1-deficient mice (F1) displayed baldness in abdomen and hair sparse in dorsa. Histological abnormalities of the reduced number of hair follicles, irregularly arranged and curved hair follicles, epidermal hyperplasia and disturbed differentiation of epidermis were observed in the PLCD1-deficient mice. Moreover, the expression level of PLCD1 was significantly decreased, while the expression levels of other genes (i.e., Krt1, Krt5, Krt13, loricrin and involucrin) involved in the differentiation of hair follicle were remarkerably increased in skin tissues of PLCD1-deficient mice. CONCLUSIONS In conclusion, we achieve PLCD1 KO mice by CRISPR/Cas9 technology, which provide a new animal model for hair development research, although homozygotes don't display completely hairless phenotype as expected.
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Affiliation(s)
- Yu-Min Liu
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, 510515 China
- Songshan Lake Pearl Laboratory Animal Sci. & Tech. Co., Ltd., Dongguan, 523808 China
| | - Wei Liu
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, 510515 China
- Songshan Lake Pearl Laboratory Animal Sci. & Tech. Co., Ltd., Dongguan, 523808 China
- Jing Brand Co., Ltd., Daye, 435100 Hubei China
| | - Jun-Shuang Jia
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou, 510515 China
| | - Bang-Zhu Chen
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, 510515 China
- Songshan Lake Pearl Laboratory Animal Sci. & Tech. Co., Ltd., Dongguan, 523808 China
| | - Heng-Wei Chen
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, 510515 China
| | - Yu Liu
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, 510515 China
| | - Ya-Nan Bie
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, 510515 China
| | - Peng Gu
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, 510515 China
- Songshan Lake Pearl Laboratory Animal Sci. & Tech. Co., Ltd., Dongguan, 523808 China
| | - Yan Sun
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080 China
| | - Dong Xiao
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, 510515 China
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou, 510515 China
| | - Wei-Wang Gu
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou, 510515 China
- Songshan Lake Pearl Laboratory Animal Sci. & Tech. Co., Ltd., Dongguan, 523808 China
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Li JL, Wang P, Fung WK, Zhou JY. Generalized disequilibrium test for association in qualitative traits incorporating imprinting effects based on extended pedigrees. BMC Genet 2017; 18:90. [PMID: 29037145 PMCID: PMC5644153 DOI: 10.1186/s12863-017-0560-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 10/04/2017] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND For dichotomous traits, the generalized disequilibrium test with the moment estimate of the variance (GDT-ME) is a powerful family-based association method. Genomic imprinting is an important epigenetic phenomenon and currently, there has been increasing interest of incorporating imprinting to improve the test power of association analysis. However, GDT-ME does not take imprinting effects into account, and it has not been investigated whether it can be used for association analysis when the effects indeed exist. RESULTS In this article, based on a novel decomposition of the genotype score according to the paternal or maternal source of the allele, we propose the generalized disequilibrium test with imprinting (GDTI) for complete pedigrees without any missing genotypes. Then, we extend GDTI and GDT-ME to accommodate incomplete pedigrees with some pedigrees having missing genotypes, by using a Monte Carlo (MC) sampling and estimation scheme to infer missing genotypes given available genotypes in each pedigree, denoted by MCGDTI and MCGDT-ME, respectively. The proposed GDTI and MCGDTI methods evaluate the differences of the paternal as well as maternal allele scores for all discordant relative pairs in a pedigree, including beyond first-degree relative pairs. Advantages of the proposed GDTI and MCGDTI test statistics over existing methods are demonstrated by simulation studies under various simulation settings and by application to the rheumatoid arthritis dataset. Simulation results show that the proposed tests control the size well under the null hypothesis of no association, and outperform the existing methods under various imprinting effect models. The existing GDT-ME and the proposed MCGDT-ME can be used to test for association even when imprinting effects exist. For the application to the rheumatoid arthritis data, compared to the existing methods, MCGDTI identifies more loci statistically significantly associated with the disease. CONCLUSIONS Under complete and incomplete imprinting effect models, our proposed GDTI and MCGDTI methods, by considering the information on imprinting effects and all discordant relative pairs within each pedigree, outperform all the existing test statistics and MCGDTI can recapture much of the missing information. Therefore, MCGDTI is recommended in practice.
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Affiliation(s)
- Jian-Long Li
- State Key Laboratory of Organ Failure Research, Ministry of Education, and Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, China
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Peng Wang
- State Key Laboratory of Organ Failure Research, Ministry of Education, and Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, China
| | - Wing Kam Fung
- Department of Statistics and Actuarial Science, The University of Hong Kong, Hong Kong, China
| | - Ji-Yuan Zhou
- State Key Laboratory of Organ Failure Research, Ministry of Education, and Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, China
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Cai NL, Lau ATY, Yu FY, Wu DD, Dai LJ, Mo HY, Lin CM, Xu YM. Purification and characterization of a highly specific polyclonal antibody against human extracellular signal-regulated kinase 8 and its detection in lung cancer. PLoS One 2017; 12:e0184755. [PMID: 28902877 PMCID: PMC5597239 DOI: 10.1371/journal.pone.0184755] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 08/30/2017] [Indexed: 02/05/2023] Open
Abstract
Extracellular signal-regulated kinase 8 (ERK8), proposed as a novel potential therapeutic target for cancer, has been implicated in cell transformation, apoptosis, the protection of genomic integrity, and autophagy. To facilitate ERK8 research, a highly specific anti-ERK8 antibody is needed. In this article, we use the Immune Epitope Database and Analysis Resource online tool to predict B-cell epitopes of human ERK8 protein, and choose a 28 aa-peptide sequence to generate the GST-ERK8(28aa) fusion protein as the antigen for developing polyclonal antibody against ERK8. The specificity and sensitivity of anti-ERK8 antibody were robustly validated by immunoblotting, immunocytochemical and immunohistochemical analyses; and we found that both the endogenous and ectopically-expressed human ERK8 proteins can be recognized by our anti-ERK8 antibody. This suggested that our characterized anti-ERK8 antibody will be a valuable tool for the elucidation of the distribution of ERK8 at cellular and histological levels. Finally, our tissue array analysis also demonstrated that the ERK8 protein was localized in both the nucleus and cytoplasm of human lung cancers.
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Affiliation(s)
- Na-Li Cai
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, P. R. China
| | - Andy T. Y. Lau
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, P. R. China
| | - Fei-Yuan Yu
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, P. R. China
| | - Dan-Dan Wu
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, P. R. China
| | - Li-Juan Dai
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, P. R. China
| | - Hai-Ying Mo
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, P. R. China
| | - Chang-Min Lin
- Department of Histology and Embryology, Shantou University Medical College, Shantou, Guangdong, P. R. China
| | - Yan-Ming Xu
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, P. R. China
- * E-mail:
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