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Bai YL, Zhang CC, Rong F, Guo ZX, Wang KX. Biomass-Derived Carbon Materials for Electrochemical Energy Storage. Chemistry 2024; 30:e202304157. [PMID: 38270279 DOI: 10.1002/chem.202304157] [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: 12/13/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 01/26/2024]
Abstract
The environmental impact from the waste disposal has been widely concerned around the world. The conversion of wastes to useful resources is important for the sustainable society. As a typical family of wastes, biomass materials basically composed of collagen, protein and lignin are considered as useful resources for recycle and reuse. In recent years, the development of carbon material derived from biomasses, such as plants, crops, animals and their application in electrochemical energy storage have attracted extensive attention. Through the selection of the appropriate biomass, the optimization of the activation method and the control of the pyrolysis temperatures, carbon materials with desired features, such as high-specific surface area, variable porous framework, and controllable heteroatom-doping have been fabricated. Herein, this review summarized the preparation methods, morphologies, heteroatoms doping in the plant/animal-derived carbonaceous materials, and their application as electrode materials for secondary batteries and supercapacitors, and as electrode support for lithium-sulfur batteries. The challenges and prospects for the controllable synthesis and large-scale application of biomass-derived carbonaceous materials have also been outlooked.
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Affiliation(s)
- Yu-Lin Bai
- College of Aeronautics and Astronautics, Taiyuan University of Technology, No. 79 West Street Yingze, 030024, Taiyuan, P. R. China
| | - Chen-Chen Zhang
- College of Aeronautics and Astronautics, Taiyuan University of Technology, No. 79 West Street Yingze, 030024, Taiyuan, P. R. China
| | - Feng Rong
- College of Aeronautics and Astronautics, Taiyuan University of Technology, No. 79 West Street Yingze, 030024, Taiyuan, P. R. China
| | - Zhao-Xia Guo
- College of Aeronautics and Astronautics, Taiyuan University of Technology, No. 79 West Street Yingze, 030024, Taiyuan, P. R. China
| | - Kai-Xue Wang
- Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, P. R. China
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Bai YL, Shyu YIL, Huang HL, Chiu YC, Hsu WC. The enrichment process for family caregivers of persons living with dementia: A grounded theory approach. J Adv Nurs 2024; 80:252-263. [PMID: 37515365 DOI: 10.1111/jan.15809] [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: 11/17/2022] [Revised: 06/12/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
AIM Many persons living with dementia (PLWD) reside in the community and are cared for by family members. The aim of this qualitative study was to gain an understanding the enrichment process for family caregivers of PLWD in Taiwan. DESIGN A grounded theory approach with face-to-face semi-structured interviews was conducted with family caregivers of PLWD in Taiwan. METHODS Interview data from 30 family caregivers of PLWD recruited from dementia clinics or support groups in Taiwan were obtained from the first wave of a larger study conducted from January 2018 to September 2021. Glaser's grounded theory approach with theoretical sampling was used to understand the enrichment process of family caregivers of PLWD. RESULTS Analysis indicated the core category that characterized the process of enrichment was 'holding together'. Caregivers were able to maintain their connection to the person with dementia through activities that deepened their relationship and strengthened their bond. 'Holding together' included four components: maintaining continuity, creative interactions, interacting with humour and sharing pleasurable activities. Through these components, family caregivers generated positive interactions and relationships with the person living with dementia and sustained their motivation for caregiving. Three modifying elements facilitated or impeded the process of holding together: 'previous daily interactions', 'caregiving beliefs' and 'filial piety'. CONCLUSION Through the enrichment process of 'holding together', family caregivers used different strategies to conduct pleasurable and meaningful activities with the person living with dementia to maintain and improve their relationship and enhance their happiness in life. IMPACT To facilitate the enrichment process, health care providers should encourage activities between family caregivers and PLWD that promote continuity, increase interactions, provide humour and foster pleasurable activities. REPORTING METHOD This study adhered to the COREQ guideline checklist. PATIENT OR PUBLIC CONTRIBUTION No patient or public contribution.
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Affiliation(s)
- Yu-Lin Bai
- School of Nursing, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- NTU BioMedical Park Hospital Zhubei Campus, Zhubei, Taiwan
| | - Yea-Ing L Shyu
- School of Nursing, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
- Dementia Center, Department of Neurology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Nursing, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
- Department of Gerontological Care and Management, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Huei-Ling Huang
- Dementia Center, Department of Neurology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Gerontological Care and Management, Chang Gung University of Science and Technology, Taoyuan, Taiwan
- Geriatric and Long-Term Care Research Center, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Yi-Chen Chiu
- School of Nursing, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Dementia Center, Department of Neurology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Wen-Chuin Hsu
- Dementia Center, Department of Neurology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Lin J, Li B, Xu Q, Liu YS, Kang YL, Wang X, Wang Y, Lei Y, Bai YL, Li XM, Zhou J. DACH1 attenuated PA-induced renal tubular injury through TLR4/MyD88/NF-κB and TGF-β/Smad signalling pathway. J Endocrinol Invest 2023:10.1007/s40618-023-02253-7. [PMID: 38147289 DOI: 10.1007/s40618-023-02253-7] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/20/2023] [Indexed: 12/27/2023]
Abstract
BACKGROUND Palmitic acid (PA), the major saturated fatty acid in the blood, often induces the initiation and progression of diabetic kidney disease (DKD). However, the underlying mechanism remains unclear. DACH1 is an important regulator of kidney functions. Herein, we investigated the roles of DACH1 in PA-induced kidney injury. METHODS Clinical data from the NHANES database were subjected to analyse the association between serum PA (sPA), blood glucose and kidney function. Molecular docking of PA was performed with DACH1. Immunohistochemistry, cell viability, annexin V/7-AAD double staining, TUNEL assay, immunofluorescent staining, autophagic flux analysis, qRT-PCR and western blot were performed. RESULTS Clinical data confirmed that sPA was increased significantly in the pathoglycemia individuals compared with controls and correlated negatively with renal function. Our findings suggested that PA could dock with DACH1. DACH1 enhances cell viability by inhibiting apoptosis and attenuating autophagy blockage induced by PA. Furthermore, the results demonstrated that DACH1 ameliorated inflammation and fibrosis through TLR4/MyD88/NF-κB and TGF-β/Smad signalling pathway in PA-treated renal tubular epithelial cell line (HK-2). CONCLUSIONS This study proved that sPA presents a risk factor for kidney injuries and DACH1 might serve as a protective target against renal function deterioration in diabetic patients.
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Affiliation(s)
- J Lin
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xi'an, 710032, China
| | - B Li
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xi'an, 710032, China
| | - Q Xu
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xi'an, 710032, China
| | - Y S Liu
- Department of Pharmacology, Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medical of the State Administration of Traditional Chinese Medicine, School of Pharmacy, Air Force Medical University, Xi'an, 710032, China
| | - Y L Kang
- Department of Microbiology and Pathogen Biology, School of Preclinical Medicine, Air Force Medical University, Xi'an, 710032, China
| | - X Wang
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xi'an, 710032, China
| | - Y Wang
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xi'an, 710032, China
| | - Y Lei
- The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712099, China
| | - Y L Bai
- Department of Microbiology and Pathogen Biology, School of Preclinical Medicine, Air Force Medical University, Xi'an, 710032, China.
| | - X M Li
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xi'an, 710032, China.
| | - J Zhou
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xi'an, 710032, China.
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Zhang XS, Liu BC, Du X, Zhang YL, Xu N, Liu XL, Li WM, Lin H, Liang R, Chen CY, Huang J, Yang YF, Zhu HL, Pan L, Wang XD, Li GH, Liu ZG, Zhang YQ, Liu ZF, Hu JD, Liu CS, Li F, Yang W, Meng L, Han YQ, Lin LE, Zhao ZY, Tu CQ, Zheng CF, Bai YL, Zhou ZP, Chen SN, Qiu HY, Yang LJ, Sun XL, Sun H, Zhou L, Liu ZL, Wang DY, Guo JX, Pang LP, Zeng QS, Suo XH, Zhang WH, Zheng YJ, Jiang Q. [To compare the efficacy and incidence of severe hematological adverse events of flumatinib and imatinib in patients newly diagnosed with chronic phase chronic myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:728-736. [PMID: 38049316 PMCID: PMC10630575 DOI: 10.3760/cma.j.issn.0253-2727.2023.09.005] [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] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Indexed: 12/06/2023]
Abstract
Objective: To analyze and compare therapy responses, outcomes, and incidence of severe hematologic adverse events of flumatinib and imatinib in patients newly diagnosed with chronic phase chronic myeloid leukemia (CML) . Methods: Data of patients with chronic phase CML diagnosed between January 2006 and November 2022 from 76 centers, aged ≥18 years, and received initial flumatinib or imatinib therapy within 6 months after diagnosis in China were retrospectively interrogated. Propensity score matching (PSM) analysis was performed to reduce the bias of the initial TKI selection, and the therapy responses and outcomes of patients receiving initial flumatinib or imatinib therapy were compared. Results: A total of 4 833 adult patients with CML receiving initial imatinib (n=4 380) or flumatinib (n=453) therapy were included in the study. In the imatinib cohort, the median follow-up time was 54 [interquartile range (IQR), 31-85] months, and the 7-year cumulative incidences of CCyR, MMR, MR(4), and MR(4.5) were 95.2%, 88.4%, 78.3%, and 63.0%, respectively. The 7-year FFS, PFS, and OS rates were 71.8%, 93.0%, and 96.9%, respectively. With the median follow-up of 18 (IQR, 13-25) months in the flumatinib cohort, the 2-year cumulative incidences of CCyR, MMR, MR(4), and MR(4.5) were 95.4%, 86.5%, 58.4%, and 46.6%, respectively. The 2-year FFS, PFS, and OS rates were 80.1%, 95.0%, and 99.5%, respectively. The PSM analysis indicated that patients receiving initial flumatinib therapy had significantly higher cumulative incidences of CCyR, MMR, MR(4), and MR(4.5) and higher probabilities of FFS than those receiving the initial imatinib therapy (all P<0.001), whereas the PFS (P=0.230) and OS (P=0.268) were comparable between the two cohorts. The incidence of severe hematologic adverse events (grade≥Ⅲ) was comparable in the two cohorts. Conclusion: Patients receiving initial flumatinib therapy had higher cumulative incidences of therapy responses and higher probability of FFS than those receiving initial imatinib therapy, whereas the incidence of severe hematologic adverse events was comparable between the two cohorts.
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Affiliation(s)
- X S Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
| | - B C Liu
- National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - X Du
- The Second People's Hospital of Shenzhen, Shenzhen 518035, China
| | - Y L Zhang
- Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - N Xu
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X L Liu
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - W M Li
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - H Lin
- First Hospital of Jilin University, Changchun 130021, China
| | - R Liang
- Xijing Hospital, Airforce Military Medical University, Xi'an 710032, China
| | - C Y Chen
- Qilu Hospital of Shandong University, Jinan 250012, China
| | - J Huang
- The Fourth Affiliated Hospital of Zhejiang University, Hangzhou 322000, China
| | - Y F Yang
- Institute of Hematology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - H L Zhu
- Institute of Hematology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Pan
- Institute of Hematology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X D Wang
- Sichuan Academy of Medical Sciences Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - G H Li
- Xi'an International Medical Center Hospital, Xi'an 710038, China
| | - Z G Liu
- Shengjing Hospital of China Medical University, Shenyang 110020, China
| | - Y Q Zhang
- The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Z F Liu
- The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - J D Hu
- Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - C S Liu
- First Hospital of Jilin University, Changchun 130021, China
| | - F Li
- The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - W Yang
- Shengjing Hospital of China Medical University, Shenyang 110020, China
| | - L Meng
- Tongji Hospital of Tongji Medical College, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Q Han
- The Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - L E Lin
- Hainan General Hospital, Haikou 570311, China
| | - Z Y Zhao
- Hainan General Hospital, Haikou 570311, China
| | - C Q Tu
- Shenzhen Baoan Hospital, Shenzhen University Second Affiliated Hospital, Shenzhen 518101, China
| | - C F Zheng
- Shenzhen Baoan Hospital, Shenzhen University Second Affiliated Hospital, Shenzhen 518101, China
| | - Y L Bai
- Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - Z P Zhou
- The Second Hospital Affiliated to Kunming Medical University, Kunming 650106, China
| | - S N Chen
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation of Soochow University, Suzhou 215006, China
| | - H Y Qiu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Institute of Blood and Marrow Transplantation of Soochow University, Suzhou 215006, China
| | - L J Yang
- Xi'an International Medical Center Hospital, Xi'an 710117, China
| | - X L Sun
- The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - H Sun
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - L Zhou
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Z L Liu
- Huazhong University of Science and Technology Union Shenzhen Hospital, Nanshan Hospital, Shenzhen 518000, China
| | - D Y Wang
- Huazhong University of Science and Technology Union Shenzhen Hospital, Nanshan Hospital, Shenzhen 518000, China
| | - J X Guo
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, China
| | - L P Pang
- Peking University Shenzhen Hospital, Shenzhen 516473, China
| | - Q S Zeng
- The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - X H Suo
- Handan Central Hospital, Handan 057150, China
| | - W H Zhang
- First Hospital of Shangxi Medical University, Taiyuan 300012, China
| | - Y J Zheng
- First Hospital of Shangxi Medical University, Taiyuan 300012, China
| | - Q Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
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Li BJ, Chen L, Yan MZ, Zou XQ, Bai YL, Xue YG, Jiang Z, Chen BH, Li CY, He Q, Feng JX, Zhou T, Xu P, Zhou T, Xu P. Intercross population study reveals that co-mutation of mitfa genes in two subgenomes induces red skin color in common carp ( Cyprinus carpio wuyuanensis). Zool Res 2023; 44:276-286. [PMID: 36785895 PMCID: PMC10083221 DOI: 10.24272/j.issn.2095-8137.2022.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
Abstract
Common carp are among the oldest domesticated fish in the world. As such, there are many food and ornamental carp strains with abundant phenotypic variations due to natural and artificial selection. Hebao red carp (HB, Cyprinus carpio wuyuanensis), an indigenous strain in China, is renowned for its unique body morphology and reddish skin. To reveal the genetic basis underlying the distinct skin color of HB, we constructed an improved high-fidelity (HiFi) HB genome with good contiguity, completeness, and correctness. Genome structure comparison was conducted between HB and a representative wild strain, Yellow River carp (YR, C. carpio haematopterus), to identify structural variants and genes under positive selection. Signatures of artificial selection during domestication were identified in HB and YR populations, while phenotype mapping was performed in a segregating population generated by HB×YR crosses. Body color in HB was associated with regions with fixed mutations. The simultaneous mutation and superposition of a pair of homologous genes ( mitfa) in chromosomes A06 and B06 conferred the reddish color in domesticated HB. Transcriptome analysis of common carp with different alleles of the mitfa mutation confirmed that gene duplication can buffer the deleterious effects of mutation in allotetraploids. This study provides new insights into genotype-phenotype associations in allotetraploid species and lays a foundation for future breeding of common carp.
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Affiliation(s)
- Bi-Jun Li
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Lin Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Meng-Zhen Yan
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Xiao-Qing Zou
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yu-Lin Bai
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Ya-Guo Xue
- College of Fisheries, Henan Normal University, Xinxiang, Henan 453007, China
| | - Zhou Jiang
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,College of Fisheries, Henan Normal University, Xinxiang, Henan 453007, China
| | - Bao-Hua Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Cheng-Yu Li
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Qian He
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jian-Xin Feng
- Henan Academy of Fishery Science, Zhengzhou, Henan 450039, China
| | - Tao Zhou
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Peng Xu
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China.,Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, Fujian 361102, China. E-mail:
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Zhou J, Chen XH, Jin YG, Bai YL, Zhao QD, Li Y. [Evaluation of shoulder function after repairing head and neck defects with supraclavicular flap]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:919-924. [PMID: 34666438 DOI: 10.3760/cma.j.cn115330-20210629-00388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the shoulder function in patients after repair of head and neck defects with supraclavicular flap. Methods: A retrospective analysis was performed on 56 patients (54 males, 2 females, aged 35-74 years old) who received the repair of head and neck defects with supraclavicular flaps at Department of Otorhinolaryngology Head and Neck Surgery of Beijing Tongren Hospital, Capital Medical University in January 2013-December 2020. The areas and types of flaps, disruption or infections of the incision at the donor sites and other postoperative complications were recorded. Quick disabilities of the arm, shoulder and hand (Quick-DASH) was used for evaluating the shoulder functions in 43 patients conforming to the standard for evaluation of the clinical functions of shoulders and upper limbs, to compare the postoperative upper limb functions between patients treated with clavicular flaps and patients with acromion flaps. Meanwhile, 30 patients who received bilateral neck lymph node dissection over the same period of time were selected for a comparative evaluation of the donor sides (observation group) and the opposite sides (control group). Data were processed with SPSS 22.0. Results: The areas of obtained supraclavicular flaps were (4-10) cm × (10-18) cm. Three patients (5%) showed the defect widths of 8-10 cm at the donor sites, which couldn't be sutured directly, received the repair of their shoulder defects with partial flaps. Defects in other patients were sutured directly. After surgery, 3 patients (5%) suffered from disruption of the acromion incision, which healed after 2 weeks of local dressing. The follow-up time was 6-43 (27±14) months. All patients expressed no dissatisfaction with the appearance. Among 43 patients, 28 (65%) were clavicular type and 15 (35%) were acromion type. The acromion type showed average motor ability and Quick-DASH scores higher than the clavicular type [(average motor ability: (14.4±4.7) vs. (11.8±3.1), t=2.105, P=0.048; Quick-DASH: (16.9±11.6) vs. (12.2±7.1), t=2.284, P=0.033]. Among 30 patients who received bilateral neck lymph node dissection over the same period of time, the observation group showed higher average motor ability, local symptoms and Quick-DASH scores than the control group [average motor ability: (13.4±5.8) vs. (9.8±4.2), t=3.024, P=0.004; average local symptoms: (4.1±1.0) vs. (3.4±1.0), t=2.537, P=0.014; Quick-DASH: (15.6±14.7) vs. (5.2±11.1), t=3.106, P=0.003]. Conclusion: Shoulder dysfunction exists after treatment with supraclavicular flap, which is related to the flap type.
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Affiliation(s)
- J Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - X H Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Y G Jin
- Department of Otorhinolaryngology Head and Neck Surgery, People's Hospital of Xianghe County, Xianghe 065400, Hebei Province, China
| | - Y L Bai
- Department of Otolaryngology, Fuxing Hospital Affiliated to Capital Medical University, Beijing 100038, China
| | - Q D Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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Wang J, Zhang T, Bai YL, Lian J, Li XP. [Analysis of the effect of preventive intervention on occupational exposure of nurses after tumor particle implantation in thoracic surgery]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:428-429. [PMID: 34218558 DOI: 10.3760/cma.j.cn121094-20201110-00623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the effect of preventive intervention on occupational exposure of nurses after tumor particle implantation in thoracic surgery. Methods: In March 2020, 99 nurses who were engaged in postoperative nursing of tumor particle implantation in thoracic surgery department of our hospital from February 2019 to February 2020 were selected as the research objects. According to different preventive interventions, they were divided into observation group (51 cases) and control group (48 cases) . The observation group received preventive intervention, while the control group received routine intervention. The differences of radiation dose, psychological state and abnormal rate of important organ function between the two groups were analyzed. Results: Compared with the control group, the radiation dose of the observation group was significantly less, and the scores of anxiety and depression were lower after the intervention, the difference were statistically significant (P<0.05) . There was no significant difference of the abnormal rate of important organ function between the two groups (P>0.05) . Conclusion: Preventive intervention can reduce the risk of occupational exposure and improve the psychological status of nurses after tumor particle implantation in thoracic surgery.
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Affiliation(s)
- J Wang
- Tianjin First Central Hospital, Tianjin 300192, China
| | - T Zhang
- Tianjin First Central Hospital, Tianjin 300192, China
| | - Y L Bai
- Tianjin First Central Hospital, Tianjin 300192, China
| | - J Lian
- Tianjin First Central Hospital, Tianjin 300192, China
| | - X P Li
- Tianjin First Central Hospital, Tianjin 300192, China
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Zhao C, Hu P, Bai YL, Xia C. Plasma metabolic differences in cows affected by inactive ovaries or normal ovarian function post partum. Pol J Vet Sci 2021; 23:59-67. [PMID: 32233305 DOI: 10.24425/pjvs.2020.132749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Anestrus is essential to an unsuccessful pregnancy in dairy cows. One of the many factors that influences anestrus is the inactive ovary. To characterize in detail the plasma metabolic pro- file, anestrus cows suffering from inactive ovaries were compared with those with natural estrus. The Holstein cows 60 to 90 day postpartum in an intensive dairy farm were assigned into inactive ovaries groups (IO, n=20) and natural estrus group (CON, n=22) according to estrus signs and rectal palpation of ovaries. Plasma samples from two groups of cows were collected from the tail vein to screen differential metabolites using gas chromatography/mass spectrometry (GC/MS) techniques and multivariate statistical analysis and pathways. The results showed that 106 compounds were screened by GC/MS and 14 compounds in the IO group were decreased by analyzing important variables in the projection values and p values of MSA.Through pathway analysis, 14 compounds, mainly associated with carbohydrate metabolism and amino acid meta- bolism, were identified to results in IO, which may seriously affect follicular growth. Metabolo- mics profiling, together with MSA and pathway analysis, showed that follicular growth and development in dairy cows is related to carbohydrate and amino acid metabolism by a single or multiple pathway(s).
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Affiliation(s)
- C Zhao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - P Hu
- Key Laboratory of Zoonosis Research, Ministry of Education/Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Y L Bai
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - C Xia
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
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Bai YL, Xarapatgvl R, Wu XY, Liu X, Liu YS, Wang KX, Chen JS. Core-shell anatase anode materials for sodium-ion batteries: the impact of oxygen vacancies and nitrogen-doped carbon coating. Nanoscale 2019; 11:17860-17868. [PMID: 31553002 DOI: 10.1039/c9nr06245a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this work, the impact of oxygen vacancies and nitrogen-doped carbon coating on the sodium-ion storage properties of anatase TiO2 has been demonstrated. Oxygen vacancies and nitrogen-doped carbon coating were introduced simultaneously by the calcination of core-shell structured TiO2 spheres in a reducing atmosphere. Compared to the anatase TiO2 with and without oxygen vacancies, TiO2-x@NC exhibits much better electrochemical performance in the storage of sodium ions. A high reversible capacity of 245.6 mA h g-1 is maintained at 0.1 A g-1 after 200 cycles, and a high specific capacity of 155.6 mA h g-1 is achieved at a high rate of 5.0 A g-1. The significantly improved electrochemical performance of the core-shell structured anatase TiO2 spheres is attributed to the synergistic effect of the oxygen vacancies in the anatase lattice and surface nitrogen-doped carbon coating. This work provides an efficient strategy for improving the electrochemical performance of metal-oxide-based electrode materials for sodium-ion batteries.
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Affiliation(s)
- Yu-Lin Bai
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
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Bai YL, Liu YS, Ma C, Wang KX, Chen JS. Neuron-Inspired Design of High-Performance Electrode Materials for Sodium-Ion Batteries. ACS Nano 2018; 12:11503-11510. [PMID: 30481967 DOI: 10.1021/acsnano.8b06585] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Sodium-ion batteries (SIBs) are generally considered as promising cheap alternatives of lithium-ion batteries for stationary renewable energy storage and have received increasing attention in recent years. The exploration of anode materials with efficient electron transportation is essential for improving the performance of SIBs. Inspired by the signal transfer mode of a neuron, we designed a composite by stringing MoS2 nanoflower (soma) with multiwall carbon nanotubes (MWCNTs) (axons). High-resolution TEM observation reveals a lattice matching growth mechanism of MoS2 nanosheets on the interface of MWCNTs and the lattice expansion of the (002) plane of MoS2. The lattice matching among the MoS2 nanosheet and MWCNT could facilitate electron transfer and structure maintenance upon cycling. The expanded distance of the (002) plane of MoS2 would also promote the sodium-ion intercalation/deintercalation kinetics of the composite. Benefiting from the structural features, when used as an anode material for SIBs, the composite exhibits excellent electrochemical performance, including high specific capacity, excellent cycle stability, and superior rate capabilities. A stable capacity of 527.7 mAh g-1 can be achieved after 110 cycles at a current density of 100 mA g-1. The neuron-inspired design proposed is a promising and efficient strategy for the development of electrode materials for SIBs with high mass transport kinetics and structural stability.
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Affiliation(s)
- Yu-Lin Bai
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
| | - Yu-Si Liu
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
| | - Chao Ma
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
| | - Kai-Xue Wang
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
| | - Jie-Sheng Chen
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , P. R. China
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Tsai PH, Yen YC, Chou YH, Lin CH, Bai YL, Kao SC, Lin YM, Wang YL, Chou YC, Lee PTY, Tiu CM. Type I Choledochal Cyst Complicated With Acute Hemorrhagic Pancreatitis: A Case Report. J Med Ultrasound 2018; 25:235-239. [PMID: 30065499 PMCID: PMC6029336 DOI: 10.1016/j.jmu.2017.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 09/14/2017] [Indexed: 01/19/2023] Open
Abstract
Choledochal cysts rarely present with acute pancreatitis. We report a patient with type I choledochal cyst(s) who had concomitant acute frank hemorrhagic pancreatitis. A 14-year-old male noted with a history of recurrent abdominal pain, fever and jaundice. Ultrasonography (US) of abdomen at the Emergency Department depicted distended gall bladder with wall thickening. Apparently dilated intrahepatic ducts (IHDs) and fusiform dilatation of the common bile duct (CBD), and mild dilatation of the pancreatic duct were also noted, suggesting a type I choledochal cyst( ). Computed tomography (CT) demonstrated calcifications in the uncinate process of the pancreas in addition to the similar findings on US. He subsequently underwent choledochal cyst excision with a Roux-en-Y hepaticojejunostomy. After surgical treatment, he has been doing well for 3 years.
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Affiliation(s)
- Ping-Hua Tsai
- Department of Internal Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Yueh-Chin Yen
- Department of Internal Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, School of Medicine, National Yang Ming University, Taipei, Taiwa
- Yuanpei University of Medical Technology, Hsinchu, Taiwan
- Yee Zen Hospital, Taoyuan, Taiwan
- Correspondence to: Yi-Hong Chou, Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Rd, Taipei, 112, Taiwan. Fax: +886 2 28710848. E-mail address: (Y.-H. Chou)
| | - Chien-Hua Lin
- Department of Surgery, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Yu-Lin Bai
- Department of Internal Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Shu-Chuan Kao
- Department of Internal Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Yu-Meu Lin
- Department of Internal Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Yu-Ling Wang
- Department of Internal Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Ya-Chun Chou
- Department of Internal Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | | | - Chui-Mei Tiu
- Department of Radiology, Taipei Veterans General Hospital, School of Medicine, National Yang Ming University, Taipei, Taiwa
- Yee Zen Hospital, Taoyuan, Taiwan
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Zhang YR, Xu KJ, Bai YL, Tang LQ, Jiang ZY, Liu YP, Liu ZJ, Zhou LC, Zhou XF. Features of the volume change and a new constitutive equation of hydrogels under uniaxial compression. J Mech Behav Biomed Mater 2018; 85:181-187. [PMID: 29906673 DOI: 10.1016/j.jmbbm.2018.06.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/26/2018] [Accepted: 06/02/2018] [Indexed: 11/26/2022]
Abstract
For high-water content hydrogels in compression, the water inside of hydrogels contributes to the response of hydrogels to external loads directly, but part of the water is expelled from hydrogels in the meantime to change the volume of the hydrogel and reduce the contribution. In order to consider the contribution of the water in the constitution equation, PVA (polyvinyl alcohol) hydrogels with high-water content were used as examples, and compressive experiments were carried out to measure both the stress-strain relation and the change of the volume in the meantime. By considering the effect of the difference of the contribution of water in different directions of the hydrogel, we deduced a new constitutive equation, which can pretty well depict the stress-strain of hydrogels with different water contents. The results showed that the contribution of water to the total stress increases with the compression strain and even exceed that of the polymer, although the expelled water reduces the contribution at the early loading stage, which well explains the difference of elastic moduli of hydrogels in compression and tension.
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Affiliation(s)
- Y R Zhang
- School of Civil Engineering and Transportation, South China University of Technology, No.381, Wushan Road, Guangzhou, Guangdong, China; Guangdong Institute of Intelligent Manufacturing, Guangzhou, China
| | - K J Xu
- School of Civil Engineering and Transportation, South China University of Technology, No.381, Wushan Road, Guangzhou, Guangdong, China
| | - Y L Bai
- School of Civil Engineering and Transportation, South China University of Technology, No.381, Wushan Road, Guangzhou, Guangdong, China; LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
| | - L Q Tang
- School of Civil Engineering and Transportation, South China University of Technology, No.381, Wushan Road, Guangzhou, Guangdong, China; State Key Laboratory of Subtropical Building Science, South China University of Technology, No.381, Wushan Road, Guangzhou, Guangdong, China.
| | - Z Y Jiang
- School of Civil Engineering and Transportation, South China University of Technology, No.381, Wushan Road, Guangzhou, Guangdong, China
| | - Y P Liu
- School of Civil Engineering and Transportation, South China University of Technology, No.381, Wushan Road, Guangzhou, Guangdong, China
| | - Z J Liu
- School of Civil Engineering and Transportation, South China University of Technology, No.381, Wushan Road, Guangzhou, Guangdong, China
| | - L C Zhou
- School of Civil Engineering and Transportation, South China University of Technology, No.381, Wushan Road, Guangzhou, Guangdong, China
| | - X F Zhou
- Guangdong Institute of Intelligent Manufacturing, Guangzhou, China
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13
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Wu ZY, Ma C, Bai YL, Liu YS, Wang SF, Wei X, Wang KX, Chen JS. Rubber-based carbon electrode materials derived from dumped tires for efficient sodium-ion storage. Dalton Trans 2018; 47:4885-4892. [PMID: 29546260 DOI: 10.1039/c8dt00504d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of sustainable and low cost electrode materials for sodium-ion batteries has attracted considerable attention. In this work, a carbon composite material decorated with in situ generated ZnS nanoparticles has been prepared via a simple pyrolysis of the rubber powder from dumped tires. Upon being used as an anode material for sodium-ion batteries, the carbon composite shows a high reversible capacity and rate capability. A capacity as high as 267 mA h g-1 is still retained after 100 cycles at a current density of 50 mA g-1. The well dispersed ZnS nanoparticles in carbon significantly enhance the electrochemical performance. The carbon composites derived from the rubber powder are proposed as promising electrode materials for low-cost, large-scale energy storage devices. This work provides a new and effective method for the reuse of dumped tires, contributing to the recycling of valuable waste resources.
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Affiliation(s)
- Zhen-Yue Wu
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Chao Ma
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Yu-Lin Bai
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Yu-Si Liu
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Shi-Feng Wang
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Xiao Wei
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Kai-Xue Wang
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
| | - Jie-Sheng Chen
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
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Feng YR, Chen XH, Kou XJ, Bai YL, Lu FQ, Yang J, Wang BC. [Individualized treatment of bilateral carotid body tumor]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:37-43. [PMID: 28104014 DOI: 10.3760/cma.j.issn.1673-0860.2017.01.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate individualized therapeutic strategy for bilateral carotid body tumors. Methods: Clinical data of 16 patients with bilateral carotid body tumor treated from January 2003 to August 2016 were retrospectively studied. Of the 16 patients, 9 were males and 7 were females; 5 were sporadic and 11 were familial; 8 cases were observed, 1 cases was malignant and treated with chemotherapy, and 7 cases were treated with surgery. The treatment course, perioperative complications and clinical efficacy were assessed. Comprehensive evaluation of bilateral carotid body tumors was performed based on the size of bilateral tumor, clinical manifestations, genetic tests and other indicators. Individual treatment strategies included observation, surgery and observation, bilateral surgery, radiotherapy or chemotherapy. Surgical resection of carotid body tumor was unilateral in 3 cases and bilateral in 3 cases; removal of bilateral carotid body tumors plus unilateral jugular bulb in 1 case; and the internal carotid artery was reconstructed with autologous greater saphenous vein in 1 case. Results: All patients were followed up for 3 months to 12 years. There was no patient death during perioperative period. Superior laryngeal nerve injury occurred in 2 case. Baroreceptor failure syndrome occurred in one patient, but it gradually recoverd with medical treatments. Conlusion: It is important to identify whether bilateral carotid body tumors are hereditary and to make an individualized therapeutic strategy for each patient with bilateral carotid body tumors, focusing on the improvement in the quality of life of patient.
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Affiliation(s)
- Y R Feng
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China
| | - X H Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China
| | - X J Kou
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China
| | - Y L Bai
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China
| | - F Q Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China
| | - J Yang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China
| | - B C Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China
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Bai YL, Xu JS, Tian T, Zhang JX, Cui LW, Zhang HR, Zhang SL. [Effect and mechanism of intermittent alkaline stimulation on high phosphorus induced calcification in vascular smooth muscle cells of rats]. Zhonghua Xin Xue Guan Bing Za Zhi 2017. [PMID: 28648030 DOI: 10.3760/cma.j.issn.0253-3758.2017.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect and possible mechanisms of intermittent alkaline on rat vascular smooth muscle cells (VSMCs) calcification induced by high phosphorus. Methods: VSMCs were isolated from rat thoracic aorta and cultured in vitro. The fourth generation VSMCs were randomly divided into control group, high phosphorus+ pH7.4, high phosphorus+ pH7.5, high phosphorus+ pH7.6 and high phosphorus+ pH7.7 group with random number table. The control group was cultured in DMEM with 10% fetal bovine serum. Other groups were cultured in DMEM with 10 mmol/L β-glycerophosphate and alkalized by 7.4% NaHCO(3) to adjust the pH respectively. After the intervention of 4 hours, the control group was replaced with the normal medium containing 10% fetal bovine serum, the other 4 groups were replaced with high phosphorus based on the pH value of the culture medium, and then replaced the culture medium every other day. After 4 days intervention, the mRNA and protein expression of L type calcium channel β(3) subunit(LTCC β(3)) and Runt related transcription factor 2 (Runx2) were detected by RT-PCR and Western blot. After 4 days intervention, the level of VSMC calcium ion was detected by Fluo-3/AM. After 14 days intervention, alkaline phosphatase (ALP) activity was measured by enzyme linked immunosorbent assay (ELISA) and the calcification was observed by measuring calcium content. Results: (1) Compared with control group, the gene and protein expressions of LTCC β(3) were higher in high phosphorus+ pH7.4 group (0.49±0.03 vs. 0.23±0.02 and 0.45±0.03 vs. 0.26±0.02 respectively, all P<0.05). Compared with high phosphorus+ pH7.4 group, the mRNA(0.86±0.05) and protein(0.62±0.04) expressions of LTCC β(3) were higher in high phosphorus+ pH7.5 group (P<0.05). Compared with high phosphorus+ pH7.5 group, the mRNA(0.99±0.05) and protein(0.80±0.03) expressions of LTCC β(3) were higher in high phosphorus+ pH7.5 group (all P<0.05). Compared with high phosphorus+ pH7.6 group, the mRNA(1.16±0.05) and protein(0.93±0.03) expressions of LTCC β(3) were higher in high phosphorus+ pH7.7 group (all P<0.05). (2) Compared with control group, calcium ion influx were higher in high phosphorus+ pH7.4 group (124.61±6.06 vs. 75.68±7.82, P<0.05). Compared with high phosphorus+ pH7.4 group, calcium ion influx was higher in high phosphorus+ pH7.5 group(210.85±9.75, P<0.05). Compared with high phosphorus+ pH7.5 group, calcium ion influx was higher in high phosphorus+ pH7.6 group(298.44±11.42, P<0.05). Compared with high phosphorus+ pH7.6 group, calcium ion influx was higher in high phosphorus+ pH7.7 group(401.13±11.41, P<0.05). (3) Compared with control group, the mRNA and protein expressions of Runx2 and ALP were higher in high phosphorus+ pH7.4 group (0.60±0.04 vs. 0.34±0.03, 0.42±0.04 vs. 0.21±0.02, 67.2±4.3 vs. 23.2±2.3 respectively, all P<0.05). Compared with high phosphorus+ pH7.4 group, the mRNA(0.76±0.05) and protein(0.68±0.03) expressions of Runx2 and ALP(102.1±5.4) were higher in high phosphorus+ pH7.5 group (all P<0.05). Compared with high phosphorus+ pH7.5 group, the mRNA(0.90±0.05) and protein(0.90±0.05) expressions of Runx2 and ALP(139.3±4.9) were higher in high phosphorus+ pH7.6 group (all P<0.05). Compared with high phosphorus+ pH7.6 group, the mRNA(1.11±0.05) and protein(1.08±0.06) expressions of Runx2 and ALP(197.0±6.7) were higher in high phosphorus+ pH7.7 group (all P<0.05). (4) Compared with control group, the calcium content were higher in high phosphorus+ pH7.4 group ((75.4±4.3)mg/g pro vs.(25.2±2.1)mg/g pro, P<0.05). Compared with high phosphorus+ pH7.4 group, the calcium content were higher in high phosphorus+ pH7.5 group ((100.8±5.7) mg/g pro, P<0.05). Compared with high phosphorus+ pH7.5 group, the calcium content were higher in high phosphorus+ pH7.6 group ((143.5±6.1) mg/g pro, P<0.05). Compared with high phosphorus+ pH7.6 group, the calcium content were higher in high phosphorus+ pH7.7 group ((205.1±8.2) mg/g pro, P<0.05). Conclusion: Intermittent alkaline stimulation can promote high phosphorus induced rat VSMCs calcification possibly through upregulating LTCC β(3) subunit gene and protein expression, increasing calcium ion influx and enhancing VSMCs phenotypic transformation.
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Affiliation(s)
- Y L Bai
- Department of Nephrology, Forth Hospital of Hebei Medical University, Shijiazhuang 050011, China
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Xu JS, Bai YL, Zhang JX, Cui LW, Zhang HR, Zhang SL. [Polymorphism at the miR-502 binding site in the 3' untranslated region of SET8 gene is associated with the risk of clear cell renal cell carcinoma]. Zhonghua Zhong Liu Za Zhi 2016; 38:476-80. [PMID: 27346408 DOI: 10.3760/cma.j.issn.0253-3766.2016.06.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the relationship between single nucleotide polymorphism of SET8 gene and the risk of clear cell renal cell carcinoma (CCRCC). METHODS We selected 140 CCRCC patients and 130 healthy controls in this case-control study.Genotype of single nucleotide polymorphism (rs16917496) at the miR-502 binding site in the 3'UTR of SET8 mRNA in the CCRCC patients and healthy controls was tested and the association between genotype and risk of cancer was assessed. The expression of SET8 was determined by immunohistochemistry and the relationship between expression of SET8 and genotype of rs16917496 was analyzed. RESULTS In the control group, CC, CT and TT genotypes were found in 30, 32 and 68 persons, respectively, while in the CCRCC patients, CC, CT and TT genotypes were found in 14 , 47 and 79 cases, respectively.The frequencies of rs16917496 CT and TT genotypes in the CCRCC group were significantly higher than those in the control group (P<0.05). Compared with the CC genotype, patients with CT and TT genotypes were more susceptible to develop CCRCC (P<0.05). CT and TT genotypes of rs16917496 at the miR-502 binding site of the SET8 gene were associated with expression of SET8. CONCLUSIONS Genotype of the SNP rs16917496 at the miR-502 binding site in the 3' untranslated region of the SET8 gene is associated with the expression of SET8 protein. Analysis of genetic polymorphisms in miRNA binding sites may help to identify the subgroups of population susceptible to CCRCC.
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Affiliation(s)
- J S Xu
- Department of Nephrology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Y L Bai
- Department of Nephrology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - J X Zhang
- Department of Nephrology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - L W Cui
- Department of Nephrology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - H R Zhang
- Department of Nephrology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - S L Zhang
- Department of Nephrology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
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Liu X, Zhao B, Zheng HJ, Hu Y, Lu G, Yang CQ, Chen JD, Chen JJ, Chen DY, Zhang L, Zhou Y, Wang LJ, Guo WZ, Bai YL, Ruan JX, Shangguan XX, Mao YB, Shan CM, Jiang JP, Zhu YQ, Jin L, Kang H, Chen ST, He XL, Wang R, Wang YZ, Chen J, Wang LJ, Yu ST, Wang BY, Wei J, Song SC, Lu XY, Gao ZC, Gu WY, Deng X, Ma D, Wang S, Liang WH, Fang L, Cai CP, Zhu XF, Zhou BL, Jeffrey Chen Z, Xu SH, Zhang YG, Wang SY, Zhang TZ, Zhao GP, Chen XY. Gossypium barbadense genome sequence provides insight into the evolution of extra-long staple fiber and specialized metabolites. Sci Rep 2015; 5:14139. [PMID: 26420475 PMCID: PMC4588572 DOI: 10.1038/srep14139] [Citation(s) in RCA: 184] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 08/18/2015] [Indexed: 01/24/2023] Open
Abstract
Of the two cultivated species of allopolyploid cotton, Gossypium barbadense produces extra-long fibers for the production of superior textiles. We sequenced its genome (AD)2 and performed a comparative analysis. We identified three bursts of retrotransposons from 20 million years ago (Mya) and a genome-wide uneven pseudogenization peak at 11–20 Mya, which likely contributed to genomic divergences. Among the 2,483 genes preferentially expressed in fiber, a cell elongation regulator, PRE1, is strikingly At biased and fiber specific, echoing the A-genome origin of spinnable fiber. The expansion of the PRE members implies a genetic factor that underlies fiber elongation. Mature cotton fiber consists of nearly pure cellulose. G. barbadense and G. hirsutum contain 29 and 30 cellulose synthase (CesA) genes, respectively; whereas most of these genes (>25) are expressed in fiber, genes for secondary cell wall biosynthesis exhibited a delayed and higher degree of up-regulation in G. barbadense compared with G. hirsutum, conferring an extended elongation stage and highly active secondary wall deposition during extra-long fiber development. The rapid diversification of sesquiterpene synthase genes in the gossypol pathway exemplifies the chemical diversity of lineage-specific secondary metabolites. The G. barbadense genome advances our understanding of allopolyploidy, which will help improve cotton fiber quality.
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Affiliation(s)
- Xia Liu
- Esquel Group, 25/F Eastern Cenrtal Plaza, 3 Yin Hing Road, Shau Kei Wan, Hongkong, China
| | - Bo Zhao
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Hua-Jun Zheng
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Yan Hu
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Gang Lu
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Chang-Qing Yang
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jie-Dan Chen
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Jun-Jian Chen
- Esquel Group, 25/F Eastern Cenrtal Plaza, 3 Yin Hing Road, Shau Kei Wan, Hongkong, China
| | - Dian-Yang Chen
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Liang Zhang
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Yan Zhou
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China.,State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Ling-Jian Wang
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Wang-Zhen Guo
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yu-Lin Bai
- Esquel Group, 25/F Eastern Cenrtal Plaza, 3 Yin Hing Road, Shau Kei Wan, Hongkong, China
| | - Ju-Xin Ruan
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiao-Xia Shangguan
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ying-Bo Mao
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Chun-Min Shan
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jian-Ping Jiang
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Yong-Qiang Zhu
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Lei Jin
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Hui Kang
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Shu-Ting Chen
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Xu-Lin He
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Rui Wang
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Yue-Zhu Wang
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Jie Chen
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Li-Jun Wang
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Shu-Ting Yu
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Bi-Yun Wang
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Jia Wei
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Si-Chao Song
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Xin-Yan Lu
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Zheng-Chao Gao
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Wen-Yi Gu
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Xiao Deng
- The Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu 214123, China
| | - Dan Ma
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Sen Wang
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Wen-Hua Liang
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Lei Fang
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Cai-Ping Cai
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Xie-Fei Zhu
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Bao-Liang Zhou
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Z Jeffrey Chen
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.,Institute for Cellular and Molecular Biology and Center for Computational Biology and Bioinformatics, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Shu-Hua Xu
- Max Planck Independent Research Group on Population Genomics, Chinese Academy of Sciences and Max Planck Society (CAS-MPG) Partner Institute for Computational Biology (PICB), Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yu-Gao Zhang
- Esquel Group, 25/F Eastern Cenrtal Plaza, 3 Yin Hing Road, Shau Kei Wan, Hongkong, China
| | - Sheng-Yue Wang
- Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China
| | - Tian-Zhen Zhang
- Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Guo-Ping Zhao
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.,Shanghai-Ministry of Science and Technology Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China.,State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Xiao-Ya Chen
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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18
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Abstract
SUMMARYDetailed investigations on the structural and mechanical properties of the forewing of the cicada were carried out. Measurement of the structures of the wings showed that the thickness of the membrane of each cell and the diameter of each vein were non-uniform in both the longitudinal and transverse directions, and their means were approximately 12.2 and 133.3 μm,respectively. However, the aspect ratios of the wings and the bodies were quite uniform and were approximately equal to 2.98 and 2.13, respectively. Based on the measured thickness, mass and area of the membranes of the cells,the mean density and the mean area density of the wing were approximately 2.3 g cm-3 and 2.8×10-3 g cm-2,respectively. In addition, the diameters of the veins of the wings, including the diameters of the holes in the vein of the leading edge, were examined. The mechanical properties of the wing were investigated separately by nanoindentation and tensile testing. The results indicated that the mean Young's modulus, hardness and yield stress of the membranes of the wings were approximately 3.7 GPa, 0.2 GPa and 29 MPa, respectively, and the mean Young's modulus and strength of the veins along the direction of the venation of wings were approximately 1.9 GPa and 52 MPa, respectively. Finally, the relevant results were briefly analyzed and discussed, providing a guideline to the biomimetic design of the aerofoil materials of micro air vehicles.
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Affiliation(s)
- F Song
- State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
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19
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20
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Abstract
The type of nanostructure referred to in biomineralization as a mineral bridge has been directly observed and measured in the organic matrix layers of nacre by transmission electron microscopy and scanning electron microscopy. Statistical analysis provides the geometric characteristics and a distribution law of the mineral bridges in the organic matrix layers. Experiments reveal that the nanostructures significantly influences the mechanical properties of the organic matrix layers. In addition, the mechanical analysis illustrates the effects of the nanostructures on the behaviors of the organic matrix layers, and the analytical results explain the corresponding experimental phenomena fairly well. The present study shows that the mineral bridges play a key role in the mechanical performances of the organic matrix layers of nacre. The results obtained provide a guide to the interfacial design of synthetic materials.
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Affiliation(s)
- F Song
- State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
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21
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Li JY, Wen YD, Fu J, Bai YL, Zhang XM, Gao CC. [The distribution and homology of mitochondrial plasmid-like DNAs in different cucumber varieties]. Yi Chuan Xue Bao 2001; 28:367-71. [PMID: 11329879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Four kinds of mitochondrial plasmid-like DNA, designated pC1, pC2, pC3 and pC4, have been found in cucumber (Jinyan No. 4). Their distribution in 14 Cucumber varieties was analyzed. Plasmid-like DNAs were detected in Jinchun No. 2, Jinchun No. 5, Jinxinmici, Jinlu No. 4 and Jinyan No. 4, and the rest 9 varieties contained no plasmid-like DNAs, suggesting that their distribution is irregular. There was homology among the same plasmid-like DNA family in different varieties. pC4 showed homology to the nuclear DNA of Jinyan No. 4, in addition to the nuclear genomes of other 7 varieties either with plasmid-like DNAs or without. The homologous sequences of pC4 in the cucumber nuclear DNA were repetitive. Sequences homologous to pC4 were also found in the nuclear genomes of towel gourd and pumpkin (other cucurbitaceous plant). Therefore, we propose that mitochondrial plasmid-like DNA occurred before cucumber diverged from cucurbit and had integrated into the nuclear DNA. The varieties without plasmid-like DNAs might lost them during evolution.
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Affiliation(s)
- J Y Li
- Institute for Molecular Biology, Nankai University, Tianjin 300071, China
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22
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Abstract
The transcriptional activator LEU3 of Saccharomyces cerevisiae belongs to a family of lower eukaryotic DNA binding proteins with a well-conserved DNA binding motif known as the Zn(II)2Cys6 binuclear cluster. We have constructed mutations in LEU3 that affect either one of the conserved cysteines (Cys47) or one of several amino acids located within a variable subregion of the DNA binding motif. LEU3 proteins with a mutation at Cys47 were very poor activators which could not be rescued by supplying Zn(II) to the growth medium. Mutations within the variable subregion were generally well-tolerated. Only two of seven mutations in this region generated poor activators, and both could be reactivated by Zn(II) supplements. Three of the other five mutations gave rise to activators that were better than wild type. One of these, His50Cys, exhibited a 1.5 fold increase in in vivo target gene activation and a notable increase in the affinity for target DNA. The properties of the His50Cys mutant are discussed in terms of a variant structure of the DNA binding motif. During the course of this work, evidence was obtained suggesting that only one of the two LEU3 protein-DNA complexes routinely seen actually activates transcription. The other (which may contain an additional protein factor) does not.
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Affiliation(s)
- Y L Bai
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907
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23
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Wang X, Bai YL. [Nursing care of very low birth weight infant]. Zhonghua Hu Li Za Zhi 1990; 25:634-5. [PMID: 2282686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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24
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Abstract
Eleven mutations resulting in partially deleted or truncated LEU3 protein were generated by linker insertion or other modifications at restriction sites, deletion of restriction fragments, or oligonucleotide-directed mutagenesis. Functional studies of these mutants showed the following: (i) A specific DNA binding region is contained within the 173 N-terminal residues, but other regions of the protein are required for optimal binding. (ii) Activation of LEU2 expression depends on the C-terminal 113 residues of the LEU3 protein. (iii) Deletion of part or all of a central section of LEU3 eliminates the ability of the LEU3 protein to respond to the co-activator alpha-isopropylmalate, i.e. creates an unmodulated activator. (iv) Overproduction of unmodulated activator slows down cell growth. (v) Specific deletion of two short acidic regions, including one with net charge - 19, has only minor effects on activation and modulation.
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Affiliation(s)
- K M Zhou
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907
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25
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Wu JQ, Liu T, Bai YL. [Study on "massage to activate the meridian" apparatus in the treatment of cholecystolithiasis]. Zhong Xi Yi Jie He Za Zhi 1989; 9:141-3, 131. [PMID: 2661040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This apparatus is designed in accordance with the doctrine and principles of traditional Chinese medicine and based on the theory of meridian and specific massage procedure in conjunction with the "Information Theory" and electron utilizing technique. It utilizes a programmed induction "Special Wave" to stimulate a series of acupuncture points, combined with administration of western drugs from a regime of "General Attack" treatment on the gallbladder stones, to enhance their evacuation. By stimulating the specific acupuncture points with this apparatus through the action of "Special Wave" strong contraction of the gallbladder can be elicitated. Experiments on dogs showed that under such stimulation the intra-gallbladder pressure can be increased 26 times, producing a jet of bile flow which facilitates the expulsion and evacuation of stones in the gallbladder. Method of use: first place a conductive rubber pad on the acupuncture point to be stimulated, then use a hand-held electrode to massage-stimulate the meridian. It is carried out forward and backward along the direction of meridian. The whole procedure is carried out under direct visualization with the help of ultrasonic B-scan. When dilatation of the common bile duct is observed, the hand-help electrode is used to perform push-compress massage on the meridian, and acupuncture points making the stones enter the common bile duct B-scan give proper orientation for the manipulation. This method has been tested clinically on 410 patients with good results. The evacuation rate of the gallbladder stones was 92.7% with complete evacuation achieved in 17.3%.(ABSTRACT TRUNCATED AT 250 WORDS)
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26
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Liu YL, Yang SL, Bai YL, Shi SF, Wu ZG. [Preparation and identification of hematoporphyrin dimethyl ester and its diacetyl derivative]. Yao Xue Xue Bao 1985; 20:545-7. [PMID: 4096247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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27
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Liu YL, Bai YL. [Studies on the chemical constituents of Rubia schumanniana Pritz]. Yao Xue Xue Bao 1985; 20:53-8. [PMID: 3839622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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28
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Liu YL, Song WZ, Ji QY, Bai YL. [The structure of ganhuangenin, a new flavonoid from the root of gansuhuangqin (Scutellaria rehderiana)]. Yao Xue Xue Bao 1984; 19:830-5. [PMID: 6544550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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29
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Liu YL, Zhu LZ, Wu P, Bai YL. [Chromatographic analysis of a hematoporphyrin derivative and its active fractions]. Yao Xue Xue Bao 1984; 19:706-9. [PMID: 6536184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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30
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Bai YL. [Therapeutic effect of danshen injection on chronic active hepatitis]. Zhong Xi Yi Jie He Za Zhi 1984; 4:86-7. [PMID: 6235048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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31
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Bai YL. [Relationship between differentiation of symptom complex and liver pathology in viral hepatitis--analysis of liver biopsy of 41 cases]. Zhong Xi Yi Jie He Za Zhi 1983; 3:161-2. [PMID: 6225551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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