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Chen DN, Guan ZY, Zhong ZY, He HL, Zhong GX, Wu ZY, Chen JH. [Association Analysis between Genotype and Phenotype of α,β-Thalassaemia Carriers in Huizhou Area of Guangdong Province]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2023; 31:1133-1137. [PMID: 37551488 DOI: 10.19746/j.cnki.issn.1009-2137.2023.04.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
OBJECTIVE To analyze the prevalence, genotype distribution and hematological characteristics of α,β-thalassaemia carriers in Huizhou area of Guangdong Province. METHODS 10 809 carriers of simple β-thalassaemia and 1 757 carriers of α,β-thalassaemia were enrolled as our study cohort. The hematological parameters were detected by automated blood cell counters and automatic capillary electrophoresis. Suspension array technology, gap-polymerase chain reaction (gap-PCR) and PCR-reverse dot blot were used for the genotyping of thalassaemia carriers. RESULTS The prevalence of α,β-thalassaemia in Huizhou area of Guangdong Province was 1.99%. A total of 62 genotypes were detected, and the most prevalent genotype was --SEA/ αα, βCD41-42/ βN (19.29%), the next was --SEA/ αα, βIVS-II-654/ βN (16.73%). Significant differences in mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) were found between different genotype groups for simple β-thalassaemia and α,β-thalassaemia. Violin plots showed that carriers with co-inheritance of β-thalassaemia and mild α-thalassaemia expressed the lightest anemia, and carriers with co-inheritance of β-thalassaemia and hemoglobin H (Hb H) disease expressed the most severe anemia. CONCLUSION There is a high prevalence of α,β-thalassaemia in Huizhou area of Guangdong Province. Because of the lack of specific hematological makers for diagnosis of α,β-thalassaemia, it is necessary to distinguish it from simple β-thalassaemia by genotyping of α- and β-thalassaemia in order to correctly guide genetic counseling and prenatal disgnosis.
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Affiliation(s)
- Di-Na Chen
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou 516007, Guangdong Province, China
| | - Zhi-Yang Guan
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou 516007, Guangdong Province, China
| | - Ze-Yan Zhong
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou 516007, Guangdong Province, China
| | - Hai-Lin He
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou 516007, Guangdong Province, China
| | - Guo-Xing Zhong
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou 516007, Guangdong Province, China
| | - Zhi-Yong Wu
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou 516007, Guangdong Province, China
| | - Jian-Hong Chen
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou 516007, Guangdong Province, China.E-mail:
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Liu JX, Wei Y, Zhou JH, Wang J, Song HC, Li XW, Xiang CZ, Xu YB, Ding C, Zhong ZY, Zhang Z, Luo YF, Zhao F, Chen C, Pi JB. [Association of hs-CRP with frailty and its components among the elderly over 65 years old in 9 longevity areas of China]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:626-633. [PMID: 37165809 DOI: 10.3760/cma.j.cn112150-20221202-01171] [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] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Objective: To investigate the association of the levels of high sensitivity C-reactive protein (hs-CRP) with frailty and its components among the elderly over 65 years old in 9 longevity areas of China. Methods: Cross-sectional data from the Health Ageing and Biomarkers Cohort Study (HABCS, 2017-2018) were used and the elderly over 65 years old were included in this study. Through questionnaire interview and physical examination, the information including demographic characteristics, behavior, diet, daily activity, cognitive function, and health status was collected. The association between hs-CRP and frailty and its components in the participants was analyzed by multivariate logistic regression model and restrictive cubic spline. Results: A total of 2 453 participants were finally included, the age was (84.8±19.8) years old. The median hs-CRP level was 1.13 mg/L and the prevalence of frailty was 24.4%. Compared with the low-level group (hs-CRP<1.0 mg/L), the OR (95%CI) value of the high-level group (hs-CRP>3.0 mg/L) was 1.79 (1.35-2.36) mg/L. As for the components, the hs-CRP level was also positively associated with ADL disability, IADL disability, functional limitation and multimorbidity. After adjusting for confounding factors, compared with the low-level group, the OR (95%CI) values of the high-level group for the four components were 1.68 (1.25-2.27), 1.88 (1.42-2.50), 1.68 (1.31-2.14) and 1.39 (1.12-1.72), respectively. Conclusion: There is a positive association between the levels of hs-CRP and the risk of frailty among the elderly over 65 years old in 9 longevity areas of China. The higher hs-CRP level may increase the risk of frailty by elevating the risk of four physical functional disabilities, namely ADL disability, IADL disability, functional limitation and multimorbidity.
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Affiliation(s)
- J X Liu
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China School of Public Health, China Medical University, Shenyang 110001, China
| | - Y Wei
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - J H Zhou
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - J Wang
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - H C Song
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - X W Li
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - C Z Xiang
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China School of Public Health, China Medical University, Shenyang 110001, China
| | - Y B Xu
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China School of Public Health, China Medical University, Shenyang 110001, China
| | - C Ding
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Z Y Zhong
- School of Public Health, China Medical University, Shenyang 110001, China
| | - Z Zhang
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Y F Luo
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - F Zhao
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - C Chen
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - J B Pi
- School of Public Health, China Medical University, Shenyang 110001, China
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Guan ZY, Zhong ZY, Xu ZB, Chen JH, Liu YH. A Case of Misdiagnosis Caused by the Coinheritance of Hb G-Siriraj [β7(A4)Glu→Lys; HBB: c.22G>A] and Hb H Disease. Hemoglobin 2022; 46:338-340. [PMID: 36691989 DOI: 10.1080/03630269.2022.2158098] [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: 01/25/2023]
Abstract
Despite the fact that most hemoglobin (Hb) variants are clinically and hematologically silent, they can interact with thalassemias, which could sometimes give rise to complicated routine thalassemia diagnostics. Hb G-Siriraj [β7(A4)Glu→Lys; HBB: c.22G>A] alone is a benign condition, but its coinheritance with α-thalassemia (α-thal) may lead to misdiagnosis. We describe the case of a Chinese woman with an elevated Hb A2 level who was assumed to carry heterozygous β-thalassemia (β-thal), but was later shown to be a double heterozygote for Hb G-Siriraj and Hb H disease. This study for the first time described hematological characteristics of a patient with a double heterozygosity for Hb G-Siriraj and Hb H disease. It is of great significance for technicians and clinicians to expand their knowledge as well as to help guide clinical diagnosis, population screening and genetic counseling.
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Affiliation(s)
- Zhi-Yang Guan
- The First Clinical Medical College, Guangdong Medical University, Zhanjiang, Guangdong, People's Republic of China.,Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou, People's Republic of China
| | - Ze-Yan Zhong
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou, People's Republic of China
| | - Zhi-Bang Xu
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou, People's Republic of China
| | - Jian-Hong Chen
- Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou, People's Republic of China
| | - Yan-Hui Liu
- The First Clinical Medical College, Guangdong Medical University, Zhanjiang, Guangdong, People's Republic of China.,Department of Prenatal Diagnosis Center, Affiliated Dongguan Maternal and Child Health Care Hospital, Southern Medical University, Guangdong, People's Republic of China
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Guan ZY, Zhong ZY, He HL, Chen D, Zhong GX, Yang KX, Chen JH. Genetic counseling and prenatal decision for hemoglobin H disease caused by the rare α2 codon 30 (-GAG) (HBA2: c.91_93delGAG) mutation and the SEA deletion: Case series study. Taiwan J Obstet Gynecol 2021; 60:763-765. [PMID: 34247821 DOI: 10.1016/j.tjog.2021.05.031] [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] [Accepted: 02/08/2021] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE We report a rare mutation on the α2-globin gene, HBA2: c.91_93delGAG and its potential functions. CASE REPORT We mainly described four patients with hemoglobin (Hb) H disease caused by the rare mutation and the SEA deletion but diversity in clinical presentation. Two had survived to adulthood with normal physical and mental development, except for mild anemia. However, two were children, who had more severe clinical manifestations. One child had developmental disorders of speech and language and mild growth retardation, and the other child suffered from severe hemolytic crises precipitated by infection and received blood transfusion. CONCLUSION This study is of great significance for clinicians to provide genetic counseling to couples at-risk of having offspring with Hb H disease and let them make the pregnancy decision, particularly reduce the occurrence of severe Hb H disease.
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Affiliation(s)
- Zhi-Yang Guan
- Prenatal Diagnosis Center, The First Women and Children's Hospital of Huizhou, Huizhou, Guangdong Province, China
| | - Ze-Yan Zhong
- Prenatal Diagnosis Center, The First Women and Children's Hospital of Huizhou, Huizhou, Guangdong Province, China
| | - Hai-Lin He
- Prenatal Diagnosis Center, The First Women and Children's Hospital of Huizhou, Huizhou, Guangdong Province, China
| | - Dan Chen
- Prenatal Diagnosis Center, The First Women and Children's Hospital of Huizhou, Huizhou, Guangdong Province, China
| | - Guo-Xing Zhong
- Prenatal Diagnosis Center, The First Women and Children's Hospital of Huizhou, Huizhou, Guangdong Province, China
| | - Kun-Xiang Yang
- Prenatal Diagnosis Center, The First Women and Children's Hospital of Huizhou, Huizhou, Guangdong Province, China
| | - Jian-Hong Chen
- Prenatal Diagnosis Center, The First Women and Children's Hospital of Huizhou, Huizhou, Guangdong Province, China.
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Li L, Zhou WJ, Fang P, Zhong ZY, Xie JS, Yan TZ, Zeng J, Tan XH, Xu XM. Evaluation and comparison of three assays for molecular detection of spinal muscular atrophy. Clin Chem Lab Med 2017; 55:358-367. [PMID: 27754957 DOI: 10.1515/cclm-2016-0275] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 08/29/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND Spinal muscular atrophy (SMA) is mainly caused by deletions in SMA-related genes. The objective of this study was to develop gene-dosage assays for diagnosing SMA. METHODS A multiplex, quantitative PCR assay and a CNVplex assay were developed for determining the copy number of SMN1, SMN2, and NAIP. Reproducibility and specificity of the two assays were compared to a multiple ligation-dependent probe amplification (MLPA) assay. To evaluate reproducibility, 30 samples were analyzed three times using the three assays. A total of 317 samples were used to assess the specificity of the two assays. RESULTS The multiplex quantitative PCR (qPCR) assay had higher reproducibility. Intra-assay CVs were 3.01%-8.52% and inter-assay CVs were 4.12%-6.24%. The CNVplex assay had ratios that were closer to expected (0.49-0.5 for one copy, 1.03-1.0 for two copies, and 1.50-1.50 for three copies). Diagnostic accuracy rates for the two assays were 100%. CONCLUSIONS The multiplex qPCR assay was a simple, rapid, and cost-effective method for routine SMA diagnosis and carrier screening. The CNVplex assay could be used to detect SMAs with complicated gene structures. The assays were reliable and could be used as alternative methods for clinical diagnosis of SMA.
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Fang P, Li L, Zeng J, Zhou WJ, Wu WQ, Zhong ZY, Yan TZ, Xie JS, Huang J, Lin L, Zhao Y, Xu XM. Molecular characterization and copy number of SMN1, SMN2 and NAIP in Chinese patients with spinal muscular atrophy and unrelated healthy controls. BMC Musculoskelet Disord 2015; 16:11. [PMID: 25888055 PMCID: PMC4328246 DOI: 10.1186/s12891-015-0457-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 01/12/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Spinal muscular atrophy (SMA) is caused by SMN1 dysfunction, and the copy number of SMN2 and NAIP can modify the phenotype of SMA. The aim of this study was to analyze the copy numbers and gene structures of SMA-related genes in Chinese SMA patients and unrelated healthy controls. METHODS Forty-two Chinese SMA patients and two hundred and twelve unrelated healthy Chinese individuals were enrolled in our study. The copy numbers and gene structures of SMA-related genes were measured by MLPA assay. RESULTS We identified a homozygous deletion of SMN1 in exons 7 and 8 in 37 of 42 patients (88.1%); the other 5 SMA patients (11.9%) had a single copy of SMN1 exon 8. The proportions of the 212 unrelated healthy controls with different copy numbers for the normal SMN1 gene were 1 copy in 4 individuals (1.9%), 2 copies in 203 (95.7%) and 3 copies in 5 (2.4%). Three hybrid SMN genes and five genes that lack partial sequences were found in SMA patients and healthy controls. Distributions of copy numbers for normal SMN2 and NAIP were significantly different (P < 0.001) in people with and without SMA. CONCLUSION The copy numbers and gene structures of SMA-related genes were different in Chinese SMA patients and healthy controls.
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Affiliation(s)
- Ping Fang
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China.
| | - Liang Li
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China.
| | - Jian Zeng
- Department of Clinical Laboratory, The Fuzhou General Hospital, Nanjing Military Command, Fuzhou, Fujian, People's Republic of China.
| | - Wan-Jun Zhou
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China.
| | - Wei-Qing Wu
- Prenatal Diagnosis Center, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, Guangdong, People's Republic of China.
| | - Ze-Yan Zhong
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China.
| | - Ti-Zhen Yan
- Liuzhou Key Laboratory of birth defects prevention and control, Liuzhou Municipal Maternity and Child Healthcare Hospital, Liuzhou, Guangxi, People's Republic of China.
| | - Jian-Sheng Xie
- Prenatal Diagnosis Center, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, Guangdong, People's Republic of China.
| | - Jing Huang
- The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, People's Republic of China.
| | - Li Lin
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China.
| | - Ying Zhao
- Prenatal Diagnostic Center, Dongguan Maternal and Children Health Hospital, Dongguan, Guangdong, People's Republic of China.
| | - Xiang-Min Xu
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China.
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Zhang YQ, Guan L, Zhong ZY, Chang M, Zhang DK, Li H, Lai W. The anti-inflammatory effect of cherry blossom extract (Prunus yedoensis) used in soothing skincare product. Int J Cosmet Sci 2014; 36:527-30. [PMID: 25065693 DOI: 10.1111/ics.12149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Accepted: 06/15/2014] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Previous investigations suggested that cherry blossoms could provide valuable bioactive materials. However, few observations regarding the anti-inflammatory effect of cherry blossoms were reported. This study was to explore the anti-inflammatory effect of cherry blossom extract (CBE), which was used as a soothing ingredient in skincare product. METHODS In vitro study, the anti-inflammatory effect of CBE on the nitric oxide (NO) inhibition assay in lipopolysaccharide (LPS)-treated RAW 264.7 cells was investigated. In vivo study, 40 volunteers were included in a randomized, single-blinded, placebo-controlled trial. 24-hour-occlusive test chambers were applied on the flexor side of the forearm with 3% sodium lauryl sulphate (SLS). Subsequently, the test areas were treated on 9 subsequent days with a cream containing 3% CBE or a placebo. Evaluation included a visual score and determination of erythema value (E value). RESULTS In vitro study, 2% CBE reduced NO production by 31.83% compared to the placebo. In the SLS irritant patch test, the visual score and erythema value of CBE were lower than that of the placebo on D5 and D9. CONCLUSION Cherry blossom extract shows good anti-inflammatory effect in vitro and in vivo and represents a promising functional ingredient in soothing skincare product by reducing skin inflammation.
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Affiliation(s)
- Y Q Zhang
- Department of Dermatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
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Li CJ, Li L, Lin L, Jiang HX, Zhong ZY, Li WM, Zhang YJ, Zheng P, Tan XH, Zhou L. Impact of the CYP3A5, CYP3A4, COMT, IL-10 and POR genetic polymorphisms on tacrolimus metabolism in Chinese renal transplant recipients. PLoS One 2014; 9:e86206. [PMID: 24465960 PMCID: PMC3897654 DOI: 10.1371/journal.pone.0086206] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 12/09/2013] [Indexed: 11/18/2022] Open
Abstract
Tacrolimus is a widely used immunosuppressive drug for preventing the rejection of solid organ transplants. The efficacy of tacrolimus shows considerable variability, which might be related to genetic variation among recipients. We conducted a retrospective study of 240 Chinese renal transplant recipients receiving tacrolimus as immunosuppressive drug. The retrospective data of all patients were collected for 40 days after transplantation. Seventeen SNPs of CYP3A5, CYP3A4, COMT, IL-10 and POR were identified by the SNaPshot assay. Tacrolimus blood concentrations were obtained on days 1-3, days 6-8 and days 12-14 after transplantation, as well as during the period of the predefined therapeutic concentration range. Kruskal-Wallis test was used to examine the effect of genetic variation on the tacrolimus concentration/dose ratio (C 0/D) at different time points. Chi-square test was used to compare the proportions of patients who achieved the target C 0 range in the different genotypic groups at weeks 1, 2, 3 and 4 after transplantation. After correction for multiple testing, there was a significant association of C 0/D with CYP3A5*3, CYP3A4*1G and CYP3A4 rs4646437 T>C at different time points after transplantation. The proportion of patients in the IL-10 rs1800871-TT group who achieved the target C 0 range was greater (p = 0.004) compared to the IL-10 rs1800871-CT and IL-10 rs1800871-CC groups at week 3 after transplantation. CYP3A5*3, CYP3A4 *1G, CYP3A4 rs4646437 T>C and IL-10 rs1800871 C>T might be potential polymorphisms affecting the interindividual variability in tacrolimus metabolism among Chinese renal transplant recipients.
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Affiliation(s)
- Chuan-Jiang Li
- Department of Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Liang Li
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, PR China
- * E-mail:
| | - Li Lin
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, PR China
| | - Hai-Xia Jiang
- Department of Clinical Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Ze-Yan Zhong
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, PR China
| | - Wei-Mo Li
- Department of Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Yan-Jun Zhang
- College of Pharmacy, University of Cincinnati Academic Health Centre, Cincinnati, Ohio, United States of America
| | - Ping Zheng
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Xu-Hui Tan
- Department of Biostatistics, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, PR China
| | - Lin Zhou
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, PR China
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Dai N, Zhong ZY, Cun YP, Qing Y, Chen C, Jiang P, Li MX, Wang D. Alteration of the microRNA expression profile in human osteosarcoma cells transfected with APE1 siRNA. Neoplasma 2013; 60:384-94. [PMID: 23581410 DOI: 10.4149/neo_2013_050] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Apurinic/apyrimidinic endonuclease1 (APE1), which has the dual functions of DNA repair and redox regulation, is considered to be a promising potential target in cancer treatment. Microarray and qRT-PCR were used to confirm the change of miRNA followed by analysis with comprehensive bioinformatics-based analysis. Both microarray and qRT-PCR demonstrated that 13 microRNAs (miRNAs) were significantly changed (>2-fold) in APE1 knockdown HOS cells; seven of them (hsa-miR-451, hsa-miR-1290, hsa-miR-765, hsa-miR-483-5p, hsa-miR-513a-5p, hsa-miR-129-5p and hsa-miR-31) were up-regulated and the other six (hsa-miR-29b, hsa-miR-197, has-let-7b, hsa-miR-324-5p, hsa-let-7i and hsa-miR-484) were down-regulated. Furthermore, pathway analysis showed that these miRNAs and their target genes affected by the expression of APE1 were involved in pathways relating to developmental processes, regulation of cellular processes, cell signaling (such as TGF-β, Wnt, MAPK and the p53 signaling pathway) and cancers. There are putative binding sites of NF-κB, p53, HIF-1α, AP-1, PEBP2, ATF, NF-Y, Pax-2,CREB and c-Myb in the promoters of several down regulated miRNAs, indicating that APE1 may regulate miRNAs via transcription factors. Our data suggest that our understanding of the biological functions of APE1 will inevitably expand due to the novel pathways that APE1 uses to regulate gene expression through miRNAs.
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Affiliation(s)
- N Dai
- Third Military Medical University, Chongqing, People's Republic of China
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Zhou WJ, Liu WY, Liu D, Jiang JH, Zhou DM, Zhong ZY, Xu XM. A quantitative assay to detect α-thalassemia deletions and triplications using multiplex nested real-time quantitative polymerase chain reaction. Anal Biochem 2012; 427:144-50. [DOI: 10.1016/j.ab.2012.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 05/09/2012] [Accepted: 05/13/2012] [Indexed: 01/10/2023]
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Zhong ZY, Jiang YD. Surface modification and characterization of indium–tin oxide for organic light-emitting devices. J Colloid Interface Sci 2006; 302:613-9. [PMID: 16890950 DOI: 10.1016/j.jcis.2006.07.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2006] [Revised: 07/03/2006] [Accepted: 07/05/2006] [Indexed: 10/24/2022]
Abstract
In this work, we used different treatment methods (ultrasonic degreasing, hydrochloric acid treatment, and oxygen plasma) to modify the surfaces of indium-tin oxide (ITO) substrates for organic light-emitting devices. The surface properties of treated ITO substrates were studied by atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), sheet resistance, contact angle, and surface energy measurements. Experimental results show that the ITO surface properties are closely related to the treatment methods, and the oxygen plasma is more efficient than the other treatments since it brings about smoother surfaces, lower sheet resistance, higher work function, and higher surface energy and polarity of the ITO substrate. Moreover, polymer light-emitting electrochemical cells (PLECs) with differently treated ITO substrates as device electrodes were fabricated and characterized. It is found that surface treatments of ITO substrates have a certain degree of influence upon the injection current, brightness, and efficiency, but hardly upon the turn-on voltages of current injection and light emission, which are in agreement with the measured optical energy gap of the electroluminescent polymer. The oxygen plasma treatment on the ITO substrate yields the best performance of PLECs, due to the improvement of interface formation and electrical contact of the ITO substrate with the polymer blend in the PLECs.
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Affiliation(s)
- Z Y Zhong
- Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China, Sichuan, Chengdu 610054, People's Republic of China.
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