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He S, Xiao K, Chen XZ, Li T, Ouyang T, Wang Z, Guo ML, Liu ZQ. Enhanced photoelectrocatalytic activity of direct Z-scheme porous amorphous carbon nitride/manganese dioxide nanorod arrays. J Colloid Interface Sci 2019; 557:644-654. [PMID: 31561081 DOI: 10.1016/j.jcis.2019.09.035] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/26/2019] [Accepted: 09/10/2019] [Indexed: 11/17/2022]
Abstract
Carbon nitride (C3N4) is a promising photocatalyst that can be applied in environmental remediation and energy conversion. However, the absorption range and charge separation efficiency of C3N4 are still severely restricted for its large-scale practical applications. Herein, we demonstrate a simple thermal polymerization and electrodeposition method, followed by partial etching strategy to synthesize direct Z-scheme porous zinc oxide/amorphous carbon nitride/manganese dioxide hybrid core-shell nanorod array (denoted as P-ZnO/ACN/MnO2) by encapsulating amorphous carbon nitride layers (ACN) and manganese dioxide nanosheets (MnO2) on the zinc oxide nanorod arrays (denoted as ZnO). Interestingly, ZnO serves as the collector of charge carriers and MnO2 plays a significant role in protecting ACN from corrosion. The as-prepared Z-scheme P-ZnO/ACN/MnO2 heterojunction exhibits high photocurrent density of 5.2 mA cm-2 at 0.6 V vs. Ag/AgCl, high photoconversion efficiency 0.98%, and universal photoelectrocatalytic degradation activity for degradation of organic dyes under visible light irradiation. The band gap energy and conduction band position of ZnO, ACN and MnO2 are calculated by UV-visible diffuse reflection and Mott-Schottky measurement, which strongly support the direct Z-scheme charge carrier migration mechanism. This finding provides an efficient strategy to construct highly active and stable C3N4-based Z-scheme photocatalytic system.
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Affiliation(s)
- Shi He
- Key Laboratory of Analytical Chemistry for Biomedicine/School of Chemistry, South China Normal University, Guangzhou 510006, PR China; School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, PR China
| | - Kang Xiao
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, PR China
| | - Xiao-Zhen Chen
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, PR China
| | - Ting Li
- Guangzhou Research Institute of Environmental Protection, Guangzhou 510006, PR China
| | - Ting Ouyang
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, PR China
| | - Zhu Wang
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, PR China
| | - Man-Li Guo
- Key Laboratory of Analytical Chemistry for Biomedicine/School of Chemistry, South China Normal University, Guangzhou 510006, PR China.
| | - Zhao-Qing Liu
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, PR China.
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Yang X, Yang LX, Wu J, Guo ML, Zhang Y, Ma SG. Treatment of lidocaine on subacute thyroiditis via restraining inflammatory factor expression and inhibiting pyroptosis pathway. J Cell Biochem 2019; 120:10964-10971. [PMID: 30963625 DOI: 10.1002/jcb.27675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 08/21/2018] [Indexed: 01/24/2023]
Abstract
BACKGROUND To explore the role of lidocaine on subacute thyroiditis (SAT) and the molecular mechanism. METHODS SAT models were constructed by infecting adenovirus to thyroid follicular epithelial cells. Cells were randomly divided into five groups: model group, low lidocaine, middle lidocaine, high lidocaine, and a control group. Thyroid secretion related factors TG and TPO, T3 and T4 were separately determined by reverse transcription-polymerase chain reaction (RT-PCR) and radioimmunoassay. Flow cytometry was used to determine thyroid follicular epithelial cell apoptosis situation. RT-PCR and Western blot analysis were used to determine the expression of inflammatory cytokines and pyroptosis related factors interleukin (IL)-1α, IL-6, THF-α, ELAVL1, NLR family pyrin domain containing 3 (NLRP3), caspase-1, and IL-1β. RESULTS Lidocaine decreased the relative level of TG, TPO, T3, and T4 in adenovirus-infected thyroid follicular epithelial cells. All levels of concentrations, including low, middle, and high, of lidocaine, significantly decreased the apoptosis rate of adenovirus-infected cells. Lidocaine dramatically reduced the protein expression of IL-1α, IL-6, THF-α, ELAVL1, NLRP3, caspase-1, and IL-1β in adenovirus-infected thyroid follicular epithelial cells. CONCLUSION Lidocaine can improve SAT through inhibiting expression of inflammatory factors and the pyroptosis pathway.
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Affiliation(s)
- Xi Yang
- Geriatrics Department of Endocrinology and Metabolism, The First Affiliated Hospital of Guangxi Medical University. Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention. Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, Guangxi, China
| | - Liu-Xue Yang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Ji Wu
- Department of Thyroid and Breast Surgery, Suqian Hospital Affiliated to Xuzhou Medical University, Suqian, China.,Department of Thyroid and Breast Surgery, Nanjing Drum Tower Hospital, Suqian, China
| | - Man-Li Guo
- Department of Endocrinology and Metabolism, Suqian People's Hospital, Nanjing Drum Tower Hospital, Suqian, China
| | - Yong Zhang
- Department of Endocrinology and Metabolism, Suqian First Hospital, Suqian, China
| | - Shao-Gang Ma
- Department of Endocrinology and Metabolism, Suqian First Hospital, Suqian, China
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Yang LX, Wu J, Guo ML, Zhang Y, Ma SG. Suppression of long non-coding RNA TNRC6C-AS1 protects against thyroid carcinoma through DNA demethylation of STK4 via the Hippo signalling pathway. Cell Prolif 2019; 52:e12564. [PMID: 30938030 PMCID: PMC6536409 DOI: 10.1111/cpr.12564] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [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: 07/03/2018] [Revised: 09/28/2018] [Accepted: 11/02/2018] [Indexed: 01/09/2023] Open
Abstract
Objectives Thyroid carcinoma (TC) represents a malignant neoplasm affecting the thyroid. Current treatment strategies include the removal of part of the thyroid; however, this approach is associated with a significant risk of developing hypothyroidism. In order to adequately understand the expression profiles of TNRC6C‐AS1 and STK4 and their potential functions in TC, an investigation into their involvement with Hippo signalling pathway and the mechanism by which they influence TC apoptosis and autophagy were conducted. Methods A microarray analysis was performed to screen differentially expressed lncRNAs associated with TC. TC cells were employed to evaluate the role of TNRC6C‐AS1 by over‐expression or silencing means. The interaction of TNRC6C‐AS1 with methylation of STK4 promoter was evaluated to elucidate its ability to elicit autophagy, proliferation and apoptosis. Results TNRC6C‐AS1 was up‐regulated while STK4 was down‐regulated, where methylation level was elevated. STK4 was verified as a target gene of TNRC6C‐AS1, which was enriched by methyltransferase. Methyltransferase’s binding to STK4 increased expression of its promoter. Over‐expressed TNRC6C‐AS1 inhibited STK4 by promoting STK4 methylation and reducing the total protein levels of MST1 and LATS1/2. The phosphorylation of YAP1 phosphorylation was decreased, which resulted in the promotion of SW579 cell proliferation and tumorigenicity. Conclusion Based on our observations, we subsequently confirmed the anti‐proliferative, pro‐apoptotic and pro‐autophagy capabilities of TNRC6C‐AS1 through STK4 methylation via the Hippo signalling pathway in TC.
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Affiliation(s)
- Liu-Xue Yang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Ji Wu
- Department of Thyroid and Breast Surgery, Suqian Hospital Affiliated to Xuzhou Medical University, Suqian, China.,Department of Thyroid and Breast Surgery, Nanjing Drum Tower Hospital, Suqian, China
| | - Man-Li Guo
- Department of Endocrinology and Metabolism, Suqian People's Hospital, Nanjing Drum Tower Hospital, Suqian, China
| | - Yong Zhang
- Department of Endocrinology and Metabolism, Huai'an Hospital Affiliated to Xuzhou Medical College and Huai'an Second People's Hospital, Huai'an, China.,Department of Endocrinology and Metabolism, Suqian First Hospital, Suqian, China
| | - Shao-Gang Ma
- Department of Endocrinology and Metabolism, Suqian First Hospital, Suqian, China.,Department of Endocrinology and Metabolism, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, China
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Guo ML, Zheng X, Yang LX, Qiu YL, Cheng L, Ma SG. Coexistence of resistance to thyroid hormone and ectopic thyroid: ten-year follow-up. Arch Endocrinol Metab 2016; 60:601-604. [PMID: 27737329 PMCID: PMC10522167 DOI: 10.1590/2359-3997000000214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 07/04/2016] [Indexed: 11/21/2022]
Abstract
Resistance to thyroid hormone (RTH) coexisting with ectopic thyroid is rare. Here we report a case of RTH with ectopic thyroid. A ten-year-old girl had been misdiagnosed as congenital hypothyroidism and treated with levothyroxine since she was born. Ten-year follow-up showed that the elevated thyrotropin was never suppressed by levothyroxine and no signs indicating hyperthyroidism or hypothyroidism despite elevated FT3 and FT4 levels. Therefore the girl developed no defects in physical and cognitive development. Pituitary adenoma was excluded by magnetic resonance imaging. Ultrasonography did not find the thyroid gland in the normal place, while the thyroid scan found a large lingual thyroid gland. The octreotide inhibition test showed a reduction in thyrotropin by 41.98%. No mutation was detected in the thyroid hormone receptor (THR) β, THRα, thyrotropin receptor (TSHR), and GNAS1 genes. To our knowledge, it is an interesting RTH case coexisting with lingual thyroid.
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Affiliation(s)
- Man-Li Guo
- Department of Endocrinology and MetabolismHuai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s HospitalHuai’anChinaDepartment of Endocrinology and Metabolism, Huai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s Hospital, Huai’an, China
| | - Xiao Zheng
- Department of Endocrinology and MetabolismHuai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s HospitalHuai’anChinaDepartment of Endocrinology and Metabolism, Huai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s Hospital, Huai’an, China
| | - Liu-Xue Yang
- Department of Endocrinology and MetabolismSecond Hospital Affiliated to Guilin Medical CollegeGuilinChinaDepartment of Endocrinology and Metabolism, the Second Hospital Affiliated to Guilin Medical College, Guilin, China
| | - Ya-Li Qiu
- Department of Neonatal Screening and CareWomen and Children’s Hospital of SuqianSuqianChinaDepartment of Neonatal Screening and Care, Women and Children’s Hospital of Suqian, Suqian, China
| | - Liang Cheng
- Department of Endocrinology and MetabolismHuai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s HospitalHuai’anChinaDepartment of Endocrinology and Metabolism, Huai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s Hospital, Huai’an, China
| | - Shao-Gang Ma
- Department of Endocrinology and MetabolismHuai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s HospitalHuai’anChinaDepartment of Endocrinology and Metabolism, Huai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s Hospital, Huai’an, China
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Qu YT, Zhang HP, Chen HY, Guo ML. [The clinical treatment experience of low-middle frequency sudden sensorineural hearing loss with steroid combined with dehydrant in 82 cases]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1322-1328. [PMID: 29797981 DOI: 10.13201/j.issn.1001-1781.2016.16.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Indexed: 06/08/2023]
Abstract
Objective:The aim of this study is to explore the treatment of low-middle frequency sudden sensorineural hearing loss with steroid combined with dehydrant.Method:Eighty-two patients with diagnosis of low-middle frequency sudden sensorineural hearing loss were selected;All patients were randomly divided into systemic steroid therapy group and steroid combined with dehydrant therapy group.All patients received Alprostadil,Ginaton and Mecobalamin.Intravenous steroids was given in systemic steroid therapy group,while intravenous steroids and dehydrant were given in steroid combined with dehydrant therapy group.Finally,the results were collected and analyzed.Result:The total effective rate was 92.31% in systemic steroid therapy group,and 93.02% in steroid combined with dehydrant therapy group.There is no significant difference between the twogroups(P<0.05).The average time of hearting recovery was (7.03±1.22)days in systemic steroid therapy group,while(6.17±1.15)days in steroid combined with dehydrant therapy group,and significant difference was detected between the two difierent treatments(P<0.05).Conclusion:The treatment of low-middle frequency sudden sensorineural hearing loss with steroid combined with dehydrant can achieve a favorable prognosis,and may shorten the treatment time.
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Affiliation(s)
- Y T Qu
- Department of Otorhinolaryngology,Hebei General Hospital,Shijiazhuang,050051,China
| | - H P Zhang
- Department of Otorhinolaryngology,Hebei General Hospital,Shijiazhuang,050051,China
| | - H Y Chen
- Department of Otorhinolaryngology,Hebei General Hospital,Shijiazhuang,050051,China
| | - M L Guo
- Department of Otorhinolaryngology,Hebei General Hospital,Shijiazhuang,050051,China
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Zheng X, Ma SG, Qiu YL, Guo ML, Shao XJ. A Novel c.554+5C>T Mutation in the DUOXA2 Gene Combined with p.R885Q Mutation in the DUOX2 Gene Causing Congenital Hypothyroidism. J Clin Res Pediatr Endocrinol 2016; 8:224-7. [PMID: 26758695 PMCID: PMC5096480 DOI: 10.4274/jcrpe.2380] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
The coexistence of mutations in the dual oxidase maturation factor 2 (DUOXA2) and dual oxidase 2 (DUOX2) genes is rarely identified in congenital hypothyroidism (CH). This study reports a boy with CH due to a novel splice-site mutation in the DUOXA2 gene and a missense mutation in the DUOX2 gene. A four-year-old boy was diagnosed with CH at neonatal screening and was enrolled in this study. The DUOXA2, DUOX2, thyroid peroxidase (TPO), and thyrotropin receptor (TSHR) genes were considered for genetic defects screening. Genomic DNA was extracted from peripheral blood leukocytes, and Sanger sequencing was used to screen the mutations in the exon fragments. Family members of the patient and the controls were also enrolled and evaluated. The boy harbored compound heterozygous mutations including a novel splice-site mutation c.554+5C>T in the maternal DUOXA2 allele and c.2654G>A (p.R885Q) in the paternal DUOX2 allele. The germline mutations from his parents were consistent with an autosomal recessive inheritance pattern. No mutations in the TPO and TSHR genes were detected. A novel splice-site mutation c.554+5C>T in the DUOXA2 gene and a mutation p.R885Q in the DUOX2 gene were identified in a 4-year-old patient with goitrous CH.
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Affiliation(s)
- Xiao Zheng
- Huai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s Hospital, Clinic of Endocrinology and Metabolism, Huai’an, China
| | - Shao-Gang Ma
- Huai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s Hospital, Clinic of Endocrinology and Metabolism, Huai’an, China
,* Address for Correspondence: Huai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s Hospital, Clinic of Endocrinology and Metabolism, Huai’an, China Phone: 86-517-8394 3591 E-mail:
| | - Ya-Li Qiu
- Women and Children’s Hospital of Suqian, Clinic of Neonatal Screening and Care, Suqian, China
| | - Man-Li Guo
- Huai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s Hospital, Clinic of Endocrinology and Metabolism, Huai’an, China
| | - Xiao-Juan Shao
- Huai’an Hospital Affiliated to Xuzhou Medical College and Huai’an Second People’s Hospital, Clinic of Endocrinology and Metabolism, Huai’an, China
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Zhang D, He Y, Liu M, Yang HB, Wu L, Wang JH, Yang SS, Chen J, Wang YY, Zeng J, Yao Y, Guo ML. [Study on incidence and risk factors of fall in the elderly in a rural community in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:624-8. [PMID: 27188350 DOI: 10.3760/cma.j.issn.0254-6450.2016.05.007] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the incidence of fall in the old farmers of Miyun county in Beijing. METHODS The old farmers who lived in Jugezhuang and Fengjiayu townships of Miyun county were selected for a questionnaire survey to collect the information about the incidence of fall and their health status. RESULTS A total of 2 397 old farmers, including 967 males and 1 430 females, were surveyed. Fall occurred in 347 old farmers(14.5%). The difference in the incidence of fall was significant between males(9.6%)and females(17.8%). A total of 282 falls occurred in courtyards, 45 falls occurred in field/hilly areas. Among the falls occurred, 216(27.2%)led to injuries. The most common site of injuries was hip(45 falls). Logistic regression analysis showed that physical exercise and high income were protective factors, but difficult standing up and walking, visual problem and stroke were the risk factors. In the males, the special risk factor was mid cognitive impairment, and in the females, the special risk factor was urinary incontinence, but afternoon nap was a protective factor. CONCLUSION The incidence of fall in the rural community was relatively high with distinct area distribution, which has caused serious influence on the mental and physical health of the elderly.
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Affiliation(s)
- D Zhang
- Department of Epidemiology, Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Y He
- Department of Epidemiology, Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100853, China; State Key Laboratory of Kidney Disease, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - M Liu
- Department of Epidemiology, Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - H B Yang
- Miyun County Hospital of Traditional Chinese Medicine, Beijing 101500, China
| | - L Wu
- Department of Epidemiology, Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - J H Wang
- Department of Epidemiology, Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - S S Yang
- Department of Epidemiology, Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - J Chen
- Miyun County Hospital of Traditional Chinese Medicine, Beijing 101500, China
| | - Y Y Wang
- Department of Epidemiology, Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - J Zeng
- Department of Epidemiology, Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Y Yao
- Department of Epidemiology, Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - M L Guo
- Miyun County Hospital of Traditional Chinese Medicine, Beijing 101500, China
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Ma SG, Zheng X, Qiu YL, Guo ML, Shao XJ. Compound heterozygous mutations (p.T561M and c.2422delT) in the TPO gene associated with congenital hypothyroidism. J Pediatr Endocrinol Metab 2016; 29:567-70. [PMID: 27135621 DOI: 10.1515/jpem-2015-0383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 12/30/2015] [Indexed: 11/15/2022]
Abstract
BACKGROUND The objective of the study was to determine the genetic basis of goitrous congenital hypothyroidism (GCH) in Chinese siblings. METHODS The proband and her younger brother with GCH were enrolled for molecular analysis of the dual oxidase 2 (DUOX2), dual oxidase maturation factor 2 (DUOXA2), and thyroid peroxidase (TPO) genes. Mutation screening was performed by Sanger sequencing the fragments amplified from genomic DNA. The detected mutations were verified among the close relatives of the patients and 105 controls. All participants underwent clinical examination and laboratory tests. RESULTS Analysis of the TPO gene revealed two heterozygous mutations, the frameshift mutation c.2422delT in the exon14 of the TPO gene, that has been reported previously, and a novel missense mutation c.1682C>T (p.T561M) in the exon10 of the TPO gene. Nine family members of the patients were enrolled for mutation screening. The patients' parents and grandfathers harbored a single heterozygous mutation. The germline mutations from this family were consistent with an autosomal recessive inheritance pattern. No mutations in the DUOXA2 and DUOX2 genes were observed. CONCLUSIONS The inactivating mutations (c.2422delT and p.T561M) in the TPO gene were identified in the Chinese siblings with GCH. The compound heterozygous mutations can cause GCH.
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Hu XP, Li ZQ, Zhou JY, Yu ZH, Zhang JM, Guo ML. Analysis of the association between polymorphisms in the vitamin D receptor (VDR) gene and dental caries in a Chinese population. Genet Mol Res 2015; 14:11631-8. [PMID: 26436404 DOI: 10.4238/2015.september.28.15] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Environmental influences on the development and progression of dental caries are well known; however, there is little evidence of a genetic component imparting susceptibility to dental caries. The aim of this study was to investigate the relationship between a single nucleotide polymorphism in the vitamin D receptor TaqI locus and dental caries susceptibility in a Chinese population. This case-control study was conducted with a case group (264 patients with dental caries from northwestern China) and a control group (219 individuals without dental caries or systemic disease from the same area). DNA was extracted from the peripheral venous blood of the study participants; the distribution of TaqI locus genotypes and allele frequencies was determined via polymerase chain reaction-restriction fragment length polymorphism. The data obtained were statistically analyzed using the Hardy-Weinberg equilibrium and Chi-square test. The frequency of the Tt genotype in the case group (14.0%) was significantly higher than that in the control group (4.3%), as determined using the genotype TT as the reference. The risk of dental caries was increased 3.8-fold in individuals with the heterozygous Tt genotype compared to that in the individuals with the TT genotype. The proportion of the 't' allele in the case group (7.0%) and the control group (2.1%) was observed to be significantly different [P = 0.0003; OR = 3.592, confidence interval 95% (1.790-7.208)]. Our results therefore suggested that the allele 't' might be a genetic factor determining dental caries susceptibility in individuals from the northwest of China.
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Affiliation(s)
- X P Hu
- School of Stomatology, Northwest University for Nationalities, Lanzhou, Gansu, China
| | - Z Q Li
- School of Stomatology, Northwest University for Nationalities, Lanzhou, Gansu, China
| | - J Y Zhou
- School of Stomatology, Northwest University for Nationalities, Lanzhou, Gansu, China
| | - Z H Yu
- School of Stomatology, LanZhou University, Lanzhou, Gansu, China
| | - J M Zhang
- School of Stomatology, Northwest University for Nationalities, Lanzhou, Gansu, China
| | - M L Guo
- School of Stomatology, Northwest University for Nationalities, Lanzhou, Gansu, China
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Wang M, Han Y, Liu X, Nie Z, Deng C, Guo M, Yao S. Assembly of layer-by-layer films of superoxide dismutase and gold nanorods: A third generation biosensor for superoxide anion. Sci China Chem 2011. [DOI: 10.1007/s11426-011-4345-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Abstract
Gold nanoclusters are promising for photothermal therapy, radiotherapy and cancer cell imaging. We have performed a first-principles study to evaluate the electronic and optical properties of Au7, Au13, Au19, Au20, and Au(20-x)Cu(x) clusters. We have employed the Perdew-Burke-Ernzerhof form of generalized gradient approximation in the frame work of density functional theory. Calculations have been carried out in different configurations. With increasing Cu atoms, the HOMO-LUMO gap of Au(20-x)Cu(x) clusters is decreased due to the increase of electronic states in the HOMO. The results of imaginary part of the dielectric function indicate that the optical transition between HOMO and LUMO has shifted to the low energy range as the Cu atoms increase. The Au and Au(20-x)Cu(x) clusters show tunable optical properties.
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Affiliation(s)
- X D Zhang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, People's Republic of China
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Wang Y, Guo ML, Jiang SL, Chen T, Jiang YM, Chen Y. [Study on the characteristics and applications of a new hydrophobic interaction chromatographic packing using chitosan as support]. Se Pu 2000; 18:354-6. [PMID: 12541517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
Based on chitosan, by using valeraldehyd as ligand, a new hydrophobic interaction chromatographic (HIC) packing material was prepared by an improved method. The effects of salt concentration, temperature, pH on the adsorption of bovine serum albumin(BSA) were investigated. The results showed that the adsorption behavior of protein by packing material is in agree with the theory of hydrophobic interaction. The alpha-amylase could be separated by HIC with high recovery of enzymatic activity.
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Affiliation(s)
- Y Wang
- College of Bioscience & Biotechnology, Yangzhou University, Yangzhou 225009, China.
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Guo ML, Zheng XR, Zhao HT, Zhao TW. [A study on the relationship between the growth and yield of safflower under plastic mulching]. Zhongguo Zhong Yao Za Zhi 1993; 18:588-91, 638. [PMID: 8003210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- M L Guo
- Shanxi Agricultural University, Taigu
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Yu YZ, Li TL, Liu ZY, Wang Q, Deng XX, Wu MX, Li G, Li LS, Liang Y, Cheng KR, Guo ML, Hu WS. [A study on the problem of labour hygiene and labour protection at high altitude (author's transl)]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1979; 1:248-55. [PMID: 162231] [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: 12/13/2022]
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