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Shen N, Qin Y, Wang Q, Liao S, Zhu J, Zhu Q, Mi H, Adhikari B, Wei Y, Huang R. Production of succinic acid from sugarcane molasses supplemented with a mixture of corn steep liquor powder and peanut meal as nitrogen sources by Actinobacillus succinogenes. Lett Appl Microbiol 2015; 60:544-51. [PMID: 25647487 DOI: 10.1111/lam.12399] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 01/13/2015] [Accepted: 01/26/2015] [Indexed: 12/16/2023]
Abstract
The potential of using corn steep liquor powder (CSLP), peanut meal (PM), soybean meal (SM), cotton meal (CM) and urea as the substitute of yeast extract (YE) as the nitrogen source was investigated for producing succinic acid (SA). Actinobacillus succinogenes GXAS137 was used as the fermenting bacterium and sugarcane molasses was used as the main substrate. None of these materials were able to produce SA as high as YE did. The CSLP could still be considered as a feasible and inexpensive alternate for YE as the yield of SA produced using CSLP was second only to the yield of SA obtained by YE. The use of CSLP-PM mixed formulation (CSLP to PM ratio = 2·6) as nitrogen source produced SA up to 59·2 g l(-1) with a productivity of 1·2 g l(-1) h(-1). A batch fermentation using a stirred bioreactor produced up to 60·7 g l(-1) of SA at the same formulation. Fed-batch fermentation that minimized the substrate inhibition produced 64·7 g l(-1) SA. These results suggest that sugarcane molasses supplemented with a mixture of CSLP and PM as the nitrogen source could be used to produce SA more economically using A. succinogenes. Significance and impact of the study: Succinic acid (SA) is commonly used as a platform chemical to produce a number of high value derivatives. Yeast extract (YE) is used as a nitrogen source to produce SA. The high cost of YE is currently the limiting factor for industrial production of SA. This study reports the use of a mixture of corn steep liquor powder (CSLP) and peanut meal (PM) as an inexpensive nitrogen source to substitute YE. The results showed that this CSLP-PM mixed formulation can be used as an effective and economic nitrogen source for the production of SA.
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Affiliation(s)
- N Shen
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - Y Qin
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - Q Wang
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - S Liao
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - J Zhu
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - Q Zhu
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - H Mi
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - B Adhikari
- School of Applied Sciences, RMIT University, City Campus, Melbourne, Australia
| | - Y Wei
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - R Huang
- Guangxi Key Laboratory of Subtropical Bio-resource Conservation and Utilization, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
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Zakharova GS, Tyutyunnik AP, Zhu Q, Liu Y, Chen W. Hydrothermal synthesis and thermal stability of self-assembling NH4V3O7 microcrystals. RUSS J INORG CHEM+ 2015. [DOI: 10.1134/s0036023615060194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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203
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Yin H, Sumners LH, Dalloul RA, Miska KB, Fetterer RH, Jenkins MC, Zhu Q, Wong EA. Changes in expression of an antimicrobial peptide, digestive enzymes, and nutrient transporters in the intestine of E. praecox-infected chickens. Poult Sci 2015; 94:1521-6. [PMID: 26015586 DOI: 10.3382/ps/pev133] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 03/25/2015] [Indexed: 11/20/2022] Open
Abstract
Coccidiosis is a major intestinal disease of poultry, caused by several species of the protozoan Eimeria. The objective of this study was to examine changes in expression of digestive enzymes, nutrient transporters, and an antimicrobial peptide following an Eimeria praecox challenge of chickens at days 3 and 6 post-infection. Gene expression was determined by real-time PCR and analyzed by one-way ANOVA. In the duodenum, the primary site of E. praecox infection, a number of genes were downregulated at both d3 and d6 post-infection. These genes included liver expressed antimicrobial peptide 2 (LEAP2), the cationic (CAT1), anionic (EAAT3), and L-type (LAT1) amino acid transporters, the peptide transporter PepT1 and the zinc transporter ZnT1. Other transporters were downregulated either at d3 or d6. At both d3 and d6, there was downregulation of B(o)AT and CAT1 in the jejunum and downregulation of LEAP2 and LAT1 in the ileum. LEAP2, EAAT3, and ZnT1 have been found to be downregulated following challenge with other Eimeria species, suggesting a common cellular response to Eimeria.
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Affiliation(s)
- H Yin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu Campus, Chengdu, 611130, Sichuan, China Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061
| | - L H Sumners
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061
| | - R A Dalloul
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061
| | - K B Miska
- Animal Biosciences and Biotechnology Laboratory, USDA/ARS, Beltsville MD 20705
| | - R H Fetterer
- Animal Parasitic Diseases Laboratory, USDA/ARS, Beltsville, MD 20705
| | - M C Jenkins
- Animal Parasitic Diseases Laboratory, USDA/ARS, Beltsville, MD 20705
| | - Q Zhu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu Campus, Chengdu, 611130, Sichuan, China
| | - E A Wong
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061
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Wang F, Leng J, Zha W, Li S, Wang H, Shen T, Zhu Q. [Expression of C3aR and C5aR in trichloroethylene-sensitized mouse liver]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2015; 33:171-174. [PMID: 25916439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To study the expression of C3aR and C5aR in trichloroethylene-sensitized mouse liver injury and discuss the pathogenesis of Dermatitis Medicamentosa-like of TCE (DMLT). METHODS 6∼8 w female BALB/c mouse were randomly divided into blank control group, solvent control group and TCE treatment group. TCE was given to the mouse for sensitization at 1th, 4th, 7th, 10th day and challenge at 17th day and 19th day. Before killing mouse, liver weight and body weight were recorded. The livers were separated at 24 h, 48 h, 72 h and 7 d after challenge. And the liver sections were used for immunofluorescence stain and RT-PCR to detect the expression levels of C3aR and C5aR. RESULTS Microscopic examination showed no significant change in liver structure or organization in TCE non-sensitized group, while liver cell oedema, cell necrosis and inflammatory cell infiltration were clearly observed in TCE-sensitized groups. The expression levels of C3aR and C5aR in 24 h, 48 h, 72 h and 7 d TCE-sensitized groups were significant higher than blank control group, solvent control group and related TCE non-sensitized groups (P < 0.05). CONCLUSION Complement activation was involved in TCE-induced liver injury and C3aR and C5aR might play essential role in the process.
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Affiliation(s)
- Feng Wang
- Department of Occupational and Environmental, School of Public Health, Anhui Medical University, Hefei 230032, China
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206
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Li Q, Zhao X, Gilbert E, Liu Y, Wang Y, Qiu M, Zhu Q. Confined housing system increased abdominal and subcutaneous fat deposition and gene expressions of carbohydrate response element-binding protein and sterol regulatory element-binding protein 1 in chicken. Genet Mol Res 2015; 14:1220-8. [DOI: 10.4238/2015.february.6.24] [Citation(s) in RCA: 3] [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] [Indexed: 11/03/2022]
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207
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Shi R, Duan J, Deng Y, Tu Q, Cao Y, Zhang M, Zhu Q, Lü Y. Nutritional status of an elderly population in Southwest China: a cross-sectional study based on comprehensive geriatric assessment. J Nutr Health Aging 2015; 19:26-32. [PMID: 25560813 DOI: 10.1007/s12603-014-0471-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Few data is available on the nutritional status of old Chinese. The present study aimed to describe the nutritional status and clinical correlates for malnutrition risk in the older people. DESIGN Cross-sectional study. SETTING Hospital- and community-based older people were recruited in the region of Chongqing, China. PARTICIPANTS 558 individuals aged 60 years old or over between April 2011 and October 2012. MEASUREMENTS Comprehensive geriatric assessment was performed and nutritional status was assessed by the Mini Nutritional Assessment Short Form (MNA-SF). Nutrition-associated factors were analyzed, including health status (chronic diseases, depression, cognition, function impaired), social factors (education status, marital status, the type of work before 60 years old) and life style factors (smoking, drinking, diet). RESULTS The mean age was 73.1±8.0 years and 43.9% were men. Prevalence of malnutrition and risk for malnutrition were 3.2% and 19.3 %, respectively. Several factors increased poor nutrition independently including self-rated health, comorbidity, chronic obstructive pulmonary disease, gastrointestinal disease and cognitive impairment. Fish decreased the risk of poor nutrition. CONCLUSIONS The prevalence was relatively low in older people of Chongqing, Southwest China. Poor nutrition was found to be increased due to the common health problems. Thus the patients with these problems should pay more attention on nutritional status. The older people should often have fish because of their nutritional benefit.
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Affiliation(s)
- R Shi
- Yang Lü, Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China, Tel: 86-23-89011632, Fax: 86-23-68811487, E-mail:
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209
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Lan D, Hu Y, Zhu Q, Li D, Liu Y. Verification of specific selection SNPs between broiler and layer chicken in Chinese indigenous chicken breeds. Genet Mol Res 2015; 14:8388-96. [DOI: 10.4238/2015.july.28.5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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210
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Cheng JM, Yao MR, Zhu Q, Wu XY, Zhou J, Tan WL, Zhan SH. Silencing of stat4 gene inhibits cell proliferation and invasion of colorectal cancer cells. J BIOL REG HOMEOS AG 2015; 29:85-92. [PMID: 25864744] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Signal transducers and activators of transcription (STAT) play critical roles in development, proliferation, and immune defense. However the consequences of STAT hyperactivity can predispose to diseases, including colorectal cancer. In the present study, we aimed to evaluate the function of STAT4 in human colorectal cancer (CRC). The expression of STAT4 was examined by immunohistochemical assay using a tissue microarray procedure. A loss-of-function experiment was carried out to investigate the effects of lentivirus-mediated STAT4 shRNA (Lv-shSTAT4) on cell proliferation and invasive potential indicated by MTT and Transwell assays in CRC cell lines (SW480 and Caco2). As a consequence, it was found that the expression of STAT4 protein was significantly increased in CRC tissues compared with that in adjacent non-cancerous tissues (ANCT) (71.1% vs 44.4%, P=0.015), and was related with the Dukes staging and depth of invasion in CRC patients (P=0.022; P=0.001). Silencing of STAT4 gene suppressed cell proliferation and invasion of CRC cells. Taken together, these findings demonstrate that increased expression of STAT4 is positively correlated with the depth of invasion in CRC patients, and inhibition of STAT4 expression represses the growth and invasion of CRC cells, suggesting that STAT4 may be a promising therapeutic target for the treatment of CRC.
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Affiliation(s)
- J M Cheng
- Department of Radiology, Shu Guang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - M R Yao
- Department of Radiology, Shu Guang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Q Zhu
- Department of Radiology, Shu Guang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - X Y Wu
- Department of Radiology, Shu Guang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - J Zhou
- Department of Radiology, Shu Guang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - W L Tan
- Department of Radiology, Shu Guang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - S H Zhan
- Department of Radiology, Shu Guang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Hu Y, Huang Q, Zhu Q, Lan D, Feng Z, Zhang L, Lan X, Ye L, Liu Y, He M, Pu H. Identification and association of single-nucleotide polymorphisms in gonadotropin-inhibitory hormone (GnIH) gene with egg production traits in Erlang mountainous chickens. Genet Mol Res 2015; 14:294-303. [DOI: 10.4238/2015.january.23.3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Qian J, Pentz K, Zhu Q, Wang Q, He J, Srivastava AK, Wani AA. USP7 modulates UV-induced PCNA monoubiquitination by regulating DNA polymerase eta stability. Oncogene 2014; 34:4791-6. [PMID: 25435364 PMCID: PMC4451444 DOI: 10.1038/onc.2014.394] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [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: 06/20/2014] [Revised: 10/02/2014] [Accepted: 10/27/2014] [Indexed: 12/27/2022]
Abstract
DNA polymerase eta (Polη) plays unique and pivotal functions in several DNA damage-tolerance pathways. Steady-state level of this short-lived protein is tightly controlled by multiple mechanisms including proteolysis. Here, we have identified the deubiquitinating enzyme, ubiquitin-specific protease 7 (USP7), as a novel regulator of Polη stability. USP7 regulates Polη stability through both indirect and direct mechanisms. Knockout of USP7 increased the steady-state level of Polη and slowed down the turnover of both Polη and p53 proteins through destabilizing their E3 ligase Mdm2. Also, USP7 physically binds Polη in vitro and in vivo. Overexpression of wild-type USP7 but not its catalytically-defective mutants deubiquitinates Polη and increases its cellular steady-state level. Thus, USP7 directly serves as a specific deubiquitinating enzyme for Polη. Furthermore, ectopic expression of USP7 promoted the UV-induced PCNA monoubiquitination in Polη-proficient but not Polη-deficient XPV cells, suggesting that USP7 facilitates UV-induced PCNA monoubiquitination by stabilizing Polη. Taken together, our findings reveal a modulatory role of USP7 in PCNA ubiquitination-mediated stress-tolerance pathways by fine-tuning Polη turnover.
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Affiliation(s)
- J Qian
- Department of Radiology, The Ohio State University, Columbus, OH, USA
| | - K Pentz
- Department of Radiology, The Ohio State University, Columbus, OH, USA
| | - Q Zhu
- Department of Radiology, The Ohio State University, Columbus, OH, USA
| | - Q Wang
- Department of Radiology, The Ohio State University, Columbus, OH, USA
| | - J He
- Department of Radiology, The Ohio State University, Columbus, OH, USA
| | - A K Srivastava
- Department of Radiology, The Ohio State University, Columbus, OH, USA
| | - A A Wani
- Department of Radiology, The Ohio State University, Columbus, OH, USA.,Department of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, OH, USA.,James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, USA
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Wei L, Zhang C, Chen HY, Zhang ZJ, Ji ZF, Yue T, Dai XM, Zhu Q, Ma LL, He DY, Jiang LD. Dopamine receptor DR2 expression in B cells is negatively correlated with disease activity in rheumatoid arthritis patients. Immunobiology 2014; 220:323-30. [PMID: 25468566 DOI: 10.1016/j.imbio.2014.10.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 10/19/2014] [Accepted: 10/20/2014] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Dopamine receptor (DR) signaling is involved in the pathogenesis of autoimmune diseases. We aimed to measure the expression levels of DR1-5 on B cells from patients with rheumatoid arthritis (RA) and to analyze the relationship between DRs and clinical manifestations, inflammatory biomarkers, functional status and disease activity. METHODS A total of 29 patients with RA, 12 healthy donors and 12 patients with osteoarthritis (OA) were recruited in this study. Flow cytometry was used to measure the levels of DR1-5 expressed on B cells. The relationships between B cell DR expressions and clinical features in RA patients were analyzed using the Spearman correlation test. RESULTS The expression levels of B cell DR1-5 in both the RA and OA groups were lower than those in healthy controls. After 3 months of medication, all five receptors were elevated in RA patients, with DR2 and DR3 being significantly increased from the baseline. DR2 expression on B cells was negatively correlated with inflammatory biomarkers and disease activity. CONCLUSION RA patients had lower expression level of DR2 on B cells compared to the healthy controls, and the level of DR2 negatively correlated with the disease activity. DR2 and DR3 might be novel predictors of patient responses to disease modifying antirheumatic drug therapy.
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Affiliation(s)
- L Wei
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - C Zhang
- Department of Orthopedics, Zhongshan Hospital of Fudan University, Shanghai, China
| | - H Y Chen
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Z J Zhang
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Z F Ji
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - T Yue
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrated Chinese & Western Medicine, Shanghai, China
| | - X M Dai
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Q Zhu
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrated Chinese & Western Medicine, Shanghai, China
| | - L L Ma
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - D Y He
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrated Chinese & Western Medicine, Shanghai, China
| | - L D Jiang
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.
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214
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Zhu Q, Moggridge G, Dalton T, Cooper J, Mantle M, Gladden L, D׳Agostino C. Assessing the use of NMR chemical shifts for prediction of VLE in non-ideal binary liquid mixtures. Chem Eng Sci 2014. [DOI: 10.1016/j.ces.2014.08.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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215
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Demon D, Kuchmiy A, Fossoul A, Zhu Q, Kanneganti TD, Lamkanfi M. Erratum: Caspase-11 is expressed in the colonic mucosa and protects against dextran sodium sulfate-induced colitis. Mucosal Immunol 2014. [DOI: 10.1038/mi.2014.83] [Citation(s) in RCA: 3] [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] [Indexed: 11/09/2022]
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216
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Zhu Q, Vanduffel W. Face configuration processing in monkey cortex. J Vis 2014. [DOI: 10.1167/14.10.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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217
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Kong H, Wang Y, Zeng X, Zhu Q, Xie W, Dai S. Involvement of NLRP3 inflammasome in rituximab-induced interstitial lung disease: a case report. J Clin Pharm Ther 2014; 39:691-4. [PMID: 25131433 DOI: 10.1111/jcpt.12198] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 07/16/2014] [Indexed: 01/20/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE Rituximab is a chimeric anti-CD20 IgG1 monoclonal antibody for the treatment of various forms of lymphoma and haematological autoimmune diseases. Interstitial lung disease is a rare but lethal pulmonary toxicity of rituximab. Nod-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome is a molecular platform activated upon signs of cellular 'danger' to trigger the maturation of pro-inflammatory cytokines. We report the first case of rituximab-induced interstitial lung disease (R-ILD) with NLRP3 inflammasome activation in the lung. CASE SUMMARY A 30-year-old male patient diagnosed with idiopathic thrombocytopenic purpura (ITP) was treated with four cycles of rituximab in one month. Three weeks after last rituximab administration, he developed progressive dyspnoea associated with respiratory failure, which was diagnosed as R-ILD. The patient showed a good response to steroid treatment, and lung biopsy was performed 5 days after the treatment. Immunohistopathological studies of lung specimens showed high expressions of inflammasome components NLRP3, apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) and caspase-1 in lung interstitium with a heavy infiltration of CD19-positive cells. The levels of inflammasome-related cytokines IL-1β and IL-18 in the serum were declined during the therapy. WHAT IS NEW AND CONCLUSIONS This is the first report confirmed the role of NLRP3 inflammasome in pulmonary toxicity of rituximab. Inhibited activation of NLRP3 inflammasome in lung by steroid treatment could reverse R-ILD and block subsequent lung fibrosis. This result could open a new sight into the pathogenesis and provide a new target for the treatment of R-ILD.
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Affiliation(s)
- H Kong
- Department of Respiratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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218
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Yin HD, Gilbert ER, Chen SY, Wang Y, Zhang ZC, Zhao XL, Zhang Y, Zhu Q. Effect of hybridization on carcass traits and meat quality of erlang mountainous chickens. Asian-Australas J Anim Sci 2014; 26:1504-10. [PMID: 25049734 PMCID: PMC4093072 DOI: 10.5713/ajas.2013.13097] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Revised: 06/14/2013] [Accepted: 06/04/2013] [Indexed: 11/27/2022]
Abstract
Native chickens hold a significant share of the market in China. In response to the huge demand from the market, the productivity of Chinese native chickens needs to be improved. Cross breeding is an effective method to increase productivity, although it might affect meat quality. In this study, two pure lines (SD02 and SD03) of Erlang mountainous chickens were hybridized with a yellow feather and faster growing line (SD01). The effect of hybridization on carcass and meat quality (physiochemical and textural traits) was measured in the F1 population at d 91 of age. The hybrids exhibited higher body weight and dressed weight, and amount of semi-eviscerated, eviscerated, breast muscle and abdominal fat (p<0.05). Abdominal fat yield also increased (p<0.05) compared to the offspring of the two pure-lines. Meanwhile, there was no significant difference in meat quality traits except for the myofiber diameter and density and the shear force of the breast muscle. Overall, the offspring of cross-lines were similar to pure lines in meat color, pH value, inosinic acid, crude protein, crude fat, dry matter, moisture content and amino acid composition in the breast muscle. These results suggest that productivity can be improved via cross-breeding while maintaining meat quality of the Erlang mountainous chicken.
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Affiliation(s)
- H D Yin
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - E R Gilbert
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - S Y Chen
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - Y Wang
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - Z C Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - X L Zhao
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - Yao Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - Q Zhu
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
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Chen Y, Cao Y, Li HB, Mao J, Liu MJ, Liu YH, Wang BJ, Jiang D, Zhu Q, Ding Y, Wang W, Li H, Choy KW. SNaPshot reveals high mutation and carrier frequencies of 15 common hearing loss mutants in a Chinese newborn cohort. Clin Genet 2014; 87:467-72. [PMID: 24989646 DOI: 10.1111/cge.12452] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 12/05/2013] [Revised: 06/26/2014] [Accepted: 06/27/2014] [Indexed: 11/28/2022]
Abstract
Genetic causes account for more than half of congenital hearing loss cases. The most frequent mutations found in non-syndromic hearing loss patients occur in GJB2 and SLC26A4. Mitochondrial genome mutations are also prevalent. However, the frequency of common hearing loss mutations in the Chinese population has not yet been well estimated. Here, we implemented the SNaPshot genotyping method to investigate the carrier frequency of 15 commonly reported hearing loss mutations in GJB2, SLC26A4 and the mitochondrial genome based on a cohort of 5800 neonates in China. Up to 15.9% (923/5800) of the newborns carry at least one mutant allele. The top three were GJB2-c.109G>A, GJB2-c.235delC, and SLC26A4-c.919A>G, with notably high carrier frequencies of 1/10, 1/53 and 1/62 respectively, and mt-7444G>A with 1/141 was the most frequent allele in the mitochondrial genome. In this cohort, 0.48% (28/5800) of neonates were genetically diagnosed with hearing loss, from which seven cases failed an OAE test. This is the first epidemiological study of non-syndromic hearing loss in Chinese newborns indicating a notably high carrier frequency (1 per 6.3 newborns) among these 15 mutant alleles. Our carrier frequency data also aid in effective risk assessment and genetic counseling for hearing loss patients in the Chinese population.
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Affiliation(s)
- Y Chen
- Department of Neotology, Central Lab Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, Jiangsu, 215002, China
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Lee JK, Yoo YJ, Perinpanayagam H, Ha BH, Lim SM, Oh SR, Gu Y, Chang SW, Zhu Q, Kum KY. Three-dimensional modelling and concurrent measurements of root anatomy in mandibular first molar mesial roots using micro-computed tomography. Int Endod J 2014; 48:380-9. [DOI: 10.1111/iej.12326] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 05/28/2014] [Indexed: 11/27/2022]
Affiliation(s)
- J. K. Lee
- Private Practice; Beautiful Dental Clinic; Changwon Korea
| | - Y. J. Yoo
- Department of Conservative Dentistry; Dental Research Institute; School of Dentistry; Seoul National University Dental Hospital; Seoul Korea
| | - H. Perinpanayagam
- Schulich School of Medicine & Dentistry; University of Western Ontario; London ON Canada
| | - B. H. Ha
- Department of Industrial Engineering; Pusan National University; Pusan Korea
| | - S. M. Lim
- Department of Conservative Dentistry; Jukjeon Dental Hospital; College of Dentistry; Dankook University; Jukjeon Korea
| | - S. R. Oh
- Department of Conservative Dentistry; Dental Research Institute; School of Dentistry; Seoul National University Dental Hospital; Seoul Korea
| | - Y. Gu
- Department of Conservative Dentistry; Dental Research Institute; School of Dentistry; Seoul National University Dental Hospital; Seoul Korea
| | - S. W. Chang
- Department of Conservative Dentistry; School of Dentistry; Kyung Hee University; Seoul Korea
| | - Q. Zhu
- Division of Endodontology; Department of Oral Health and Diagnostic Sciences; School of Dental Medicine; University of Connecticut Health Center; Farmington CT USA
| | - K. Y. Kum
- Department of Conservative Dentistry; Dental Research Institute; School of Dentistry; Seoul National University Dental Hospital; Seoul Korea
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Tang L, Tong Y, Cao H, Xie S, Yang Q, Zhang F, Zhu Q, Huang L, Lü Q, Yang Y, Li D, Chen M, Yu C, Jin W, Yuan Y, Tong N. The MTMR9 rs2293855 polymorphism is associated with glucose tolerance, insulin secretion, insulin sensitivity and increased risk of prediabetes. Gene 2014; 546:150-5. [PMID: 24937802 DOI: 10.1016/j.gene.2014.06.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 06/06/2014] [Accepted: 06/13/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND Polymorphism of rs2293855 in gene MTMR9 has been associated with obesity and metabolic syndrome. We aim to study the association of rs2293855 with type 2 diabetes mellitus (T2DM) intermediate phenotypes in a Han Chinese population. METHODS The polymorphism was genotyped in 838 Han Chinese individuals using Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS); all participants underwent a 75 g oral glucose tolerance test (OGTT); associations between the polymorphism and glucose tolerance, indices of insulin secretion and indices of insulin sensitivity were analyzed. RESULTS The frequency of genotypes and alleles differed significantly between normal glucose tolerance and prediabetes (P=0.043 and P=0.009, respectively). The GG homozygous presented higher fasting plasma glucose (P=0.009), higher 2-hour plasma glucose (P=0.024) and higher glucose area under the curve (AUC, P=0.01). Moreover, the G allele of rs2293855 was associated with glucose intolerance (fasting glucose, P=0.012; glucose AUC, P=0.006; 2-h glucose, P=0.024); it is also associated with decreased indices of insulin sensitivity (fasting insulin, P=0.043; insulin sensitivity index composite, P=0.009; homeostasis model assessment of insulin resistance, HOMA-IR, P=0.008) and decreased indices of insulin secretion (HOMA of beta cell function, HOMA-B, P=0.028; insulinogenic index, P=0.003). In addition, the minor allele G was also associated with increased risk of prediabetes (OR=1.463, 95%CI: 1.066-2.009, P=0.018). CONCLUSIONS Polymorphism of rs2293855 in MTMR9 is associated with measures of glucose tolerance, indices of insulin secretion and indices of insulin sensitivity. We also suggest that allele G is likely to increase the risk of prediabetes by influencing both insulin secretion and insulin sensitivity.
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Affiliation(s)
- L Tang
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Y Tong
- Department of Clinical Medicine, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - H Cao
- Division of Endocrinology and Metabolism, Chengdu Fifth People's Hospital, Chengdu, Sichuan, China
| | - S Xie
- Chengdu Aerospace Hospital, Chengdu, Sichuan, China
| | - Q Yang
- Division of Endocrinology and Metabolism, Chengdu Fifth People's Hospital, Chengdu, Sichuan, China
| | - F Zhang
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Q Zhu
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - L Huang
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Q Lü
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Y Yang
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - D Li
- Chengdu Yincao Community Hospital, Chengdu, Sichuan, China
| | - M Chen
- Chengdu Aerospace Hospital, Chengdu, Sichuan, China
| | - C Yu
- Chengdu Aerospace Hospital, Chengdu, Sichuan, China
| | - W Jin
- Chengdu Aerospace Hospital, Chengdu, Sichuan, China
| | - Y Yuan
- Chengdu Aerospace Hospital, Chengdu, Sichuan, China
| | - N Tong
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
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Yin H, Li D, Zhang L, Yang M, Zhao X, Wang Y, Liu Y, Zhu Q. Housing system influences abundance of Pax3 and Pax7 in postnatal chicken skeletal muscles. Poult Sci 2014; 93:1337-43. [DOI: 10.3382/ps.2013-03555] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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223
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Zha W, Leng J, Wang F, Zhang J, Li S, Wang H, Shen T, Zhu Q. [Levels of complement components C3a and C5a in renal injury among trichloroethylene-sensitized BALB/c mice]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2014; 32:335-339. [PMID: 25169086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To determine the levels of complement components C3a and C5a in the kidneys of trichloroethylene (TCE)-sensitized BALB/c mice, and to investigate the role of complement components in TCE-induced renal injury among BALB/c mice. METHODS Sixty-two female BALB/c mice were randomly divided into blank control group, vehicle control group, and TCE sensitization group. The mice in TCE sensitization group were sensitized by one intracutaneous injection and one abdominal smear of TCE. At 24 h, 48 h, 72 h, and 7 d after the second sensitization, mice were sacrificed, and the blood and kidneys were collected. An automatic biochemical analyzer was used in the determination of serum blood urea nitrogen (BUN) and creatinine (Cr). The levels of C3a and C5a in the kidneys were determined by immunohistochemistry. RESULTS The sensitization rate of TCE sensitization group was 42.0%. Kidney coefficient and serum levels of BUN and Cr were significantly increased in the TCE sensitization group as compared with the vehicle control group at 48 h and 72 h after sensitization (P < 0.05). The kidney coefficients of the TCE sensitization group at 48 h and 72 h were significantly higher than those of the control groups (P < 0.05). In comparison with the vehicle control group, however, no significant change was found in kidney coefficient, serum BUN, or serum Cr at 7 d after TCE sensitization (P > 0.05). Levels of C3a and C5a at 48 h (3.80±0.84 and 4.00±1.00, respectively) and 72 h (4.40 ± 1.14 and 4.40 ± 1.14, respectively) after sensitization were all significantly higher than those of the vehicle control group (P < 0.05), but no significant difference was found in level of C3a (1.80±0.45) or C5a (2.00 ± 0.71) at 7 d (P > 0.05). CONCLUSION TCE sensitization can induce renal injury in mice. Levels of complement components C3a and C5a are elevated in the kidneys of sensitized mice, indicating that C3a and C5a may be involved in the renal injury induced by TCE sensitization.
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Affiliation(s)
- Wansheng Zha
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Hefei 230032, China
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Yin HD, Tian K, Li DY, Gilbert ER, Xiao LH, Chen SY, Wang Y, Liu YP, Zhao XL, Zhu Q. Expression Profiles of Cellular Retinol-binding Protein, Type II (CRBP II) in Erlang Mountainous Chickens. Asian Australas J Anim Sci 2014; 27:310-5. [PMID: 25049956 PMCID: PMC4093264 DOI: 10.5713/ajas.2013.13469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Revised: 12/19/2013] [Accepted: 11/22/2013] [Indexed: 11/27/2022]
Abstract
Cellular retinol-binding protein II (CRBP II) belongs to the family of cellular retinol-binding proteins and plays a major role in absorption, transport, and metabolism of vitamin A. In addition, because vitamin A is correlated with reproductive performance, we measured CRBP II mRNA abundance in erlang mountainous chickens by real-time PCR using the relative quantification method. The expression of CRBP II showed a tissue-specific pattern and egg production rate-dependent changes. The expression was very high (p<0.05) in jejunum and liver, intermediate in kidney, ovary, and oviduct, and lowest (p<0.05) in heart, hypothalamus, and pituitary. In the hypothalamus, oviduct, ovary, and pituitary, CRBP II mRNA abundance were correlated to egg production rate, which increased from 12 wk to 32 wk, peaked at 32 wk relative to the other time points, and then decreased from 32 wk to 45 wk. In contrast, the expression of CRBP II mRNA in heart, jejunum, kidney, and liver was not different at any of the ages evaluated in this study. These data may help to understand the genetic basis of vitamin A metabolism, and suggest that CRBP II may be a candidate gene to affect egg production traits in chickens.
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225
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Li Y, Xu Z, Yu Y, Yuan H, Xu H, Zhu Q, Wang C, Shi X. The Vagus Nerve Attenuates Fulminant Hepatitis by Activating the Src Kinase in Kuppfer Cells. Scand J Immunol 2014; 79:105-12. [PMID: 24313447 DOI: 10.1111/sji.12141] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 11/11/2013] [Indexed: 12/14/2022]
Affiliation(s)
- Y. Li
- Department of Anesthesiology; Changzheng Hospital; Second Military Medical University; Shanghai China
| | - Z. Xu
- Department of Anesthesiology; Shanghai First Maternity and Infant Health Hospital; Tongji University; Shanghai China
| | - Y. Yu
- Department of Basic Medicine; Second Military Medical University; Shanghai China
| | - H. Yuan
- Department of Anesthesiology; Changzheng Hospital; Second Military Medical University; Shanghai China
| | - H. Xu
- Department of Anesthesiology; Changzheng Hospital; Second Military Medical University; Shanghai China
| | - Q. Zhu
- Department of Anesthesiology; Changzheng Hospital; Second Military Medical University; Shanghai China
| | - C. Wang
- Department of Anesthesiology; Changzheng Hospital; Second Military Medical University; Shanghai China
| | - X. Shi
- Department of Anesthesiology; Changzheng Hospital; Second Military Medical University; Shanghai China
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226
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Yin H, Zhang S, Gilbert E, Siegel P, Zhu Q, Wong E. Expression profiles of muscle genes in postnatal skeletal muscle in lines of chickens divergently selected for high and low body weight. Poult Sci 2014; 93:147-54. [DOI: 10.3382/ps.2013-03612] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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227
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228
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Zhu Q, Li Y. Environmental Restoration in the Shiyang River Basin, China: Conservation, Reallocation and More Efficient Use of Water. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.aqpro.2014.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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229
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Cheng B, Jiang Y, Zhu Q, Lin W. Wnt/β-catenin aids in regulating the proliferation of hepG2 cells mediated by thy-1. Genet Mol Res 2014; 13:5115-27. [DOI: 10.4238/2014.july.7.4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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230
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Alaaeddine M, Zhu Q, Fichou D, Izzet G, Rault JE, Barrett N, Proust A, Tortech L. Enhancement of photovoltaic efficiency by insertion of a polyoxometalate layer at the anode of an organic solar cell. Inorg Chem Front 2014. [DOI: 10.1039/c4qi00093e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Thick layers of the Wells–Dawson K6[P2W18O62] highly ordered were obtained and integrated at the anodic interface of organic solar cells to reach high power conversion efficiency.
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Affiliation(s)
- M. Alaaeddine
- Sorbonne Universités
- UPMC Univ Paris 06
- CNRS UMR 8232
- Institut Parisien de Chimie Moléculaire
- F-75005 Paris, France
| | - Q. Zhu
- Sorbonne Universités
- UPMC Univ Paris 06
- CNRS UMR 8232
- Institut Parisien de Chimie Moléculaire
- F-75005 Paris, France
| | - D. Fichou
- Sorbonne Universités
- UPMC Univ Paris 06
- CNRS UMR 8232
- Institut Parisien de Chimie Moléculaire
- F-75005 Paris, France
| | - G. Izzet
- Sorbonne Universités
- UPMC Univ Paris 06
- CNRS UMR 8232
- Institut Parisien de Chimie Moléculaire
- F-75005 Paris, France
| | - J. E. Rault
- Synchrotron-SOLEIL
- Gif sur Yvette CEDEX, France
| | - N. Barrett
- CEA Saclay
- IRAMIS
- SPEC
- LENSIS
- F-91191 Gif-sur-Yvette, France
| | - A. Proust
- Sorbonne Universités
- UPMC Univ Paris 06
- CNRS UMR 8232
- Institut Parisien de Chimie Moléculaire
- F-75005 Paris, France
| | - L. Tortech
- Sorbonne Universités
- UPMC Univ Paris 06
- CNRS UMR 8232
- Institut Parisien de Chimie Moléculaire
- F-75005 Paris, France
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231
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Zhang W, Oganov AR, Goncharov AF, Zhu Q, Boulfelfel SE, Lyakhov AO, Stavrou E, Somayazulu M, Prakapenka VB, Konopkova Z. Unexpected Stable Stoichiometries of Sodium Chlorides. Science 2013; 342:1502-5. [DOI: 10.1126/science.1244989] [Citation(s) in RCA: 333] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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232
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Zhu Q, Wang L, Tannenbaum S, Ricci A, DeFusco P, Hegde P. Abstract P1-08-41: Pathologic response prediction to neoadjuvant chemotherapy utilizing pretreatment near infrared imaging and tumor pathologic criteria. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p1-08-41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: In previous studies, the utilization of ultrasound guided near infrared diffused light imaging (US-NIR) has shown great potential in predicting and monitoring the pathologic tumor response to neoadjuvant chemotherapy (NAC). The purpose of the current study is to develop a prediction model utilizing pretreatment tumor hemoglobin content measured by US-NIR in conjunction with standard pathologic tumor characteristics to predict pathologic response even before NAC is given. Utilizing a multiple logistic regression model, the sensitivity, specificity, positive and negative predictive values (PPV and NPV), and the area under the receiver operating characteristic curve (AUC) are determined for the models.
Materials and Methods: 34 patients’ data were retrospectively analyzed using a multiple logistic regression model to predict response. These patients were split into a training group (23 patients of 24 tumors) and testing group (11 patients of 12 tumors). Tumor vascularity was assessed pre-NAC using US-NIR and measurements of total hemoglobin (tHb), oxygenated (oxyHb), and deoxygenated hemoglobin concentrations (deoxyHb) as well as tumor reduced scatter coefficients acquired before treatment. Tumor pathologic variables including the estrogen (ER) and progesterone (PR) receptors, human epidermal growth factor receptor 2 (HER2) and Nottingham score (mitotic index and grade) were acquired before NAC in biopsy specimens and were also used in the prediction model. The patients’ pathologic response was graded based on the Miller-Payne system as non- and partial-responders (grades 1-3) and near-complete and complete responders (grades 4-5).
Results: Utilizing initial tumor pathologic characteristics (grade and receptor status) a sensitivity of 100%, specificity of 73.3%, PPV and NPV of 69.5% and 100%, and AUC of 0.83(95% CI: 0.637-963) were obtained from training data. When pretreatment hemoglobin parameters and reduced scatter coefficients were included as additional predictors in training data, sensitivity, specificity, PPV and NPV improved to 100% and AUC of 1.0 (95% CI: 1.0-1.0). The performance of the predictive models were validated on testing data and corresponding values were 100%, 66.7%, 75.0% and 100%, and AUC of 0.83 (CI: 0.56-1.0) when tumor pathologic parameters alone were used as predictors. While the corresponding values were 100% and AUC of 1.0 (CI: 1.0-1.0) when hemoglobin and reduced scatter parameters were added as predictors.
Discussion: These initial findings indicate that combining widely used tumor pathologic variables with hemoglobin and optical scatter functional parameters determined by NIR provides a powerful tool for predicting patient response to preoperative chemotherapy before the initiation of the treatment. With the current trend to treat in the neoadjuvant setting, such a tool will be invaluable for response assessment. Plans are underway to validate this model in larger patient settings and its applicability to non-chemotherapeutic regimens.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-08-41.
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Affiliation(s)
- Q Zhu
- University of Connecticut, Storrs, CT; University of Manitoba, Winnipeg, MB, Canada; University of Connecticut Health Center, Farmington, CT; Hartford Hospital, Hartford, CT
| | - L Wang
- University of Connecticut, Storrs, CT; University of Manitoba, Winnipeg, MB, Canada; University of Connecticut Health Center, Farmington, CT; Hartford Hospital, Hartford, CT
| | - S Tannenbaum
- University of Connecticut, Storrs, CT; University of Manitoba, Winnipeg, MB, Canada; University of Connecticut Health Center, Farmington, CT; Hartford Hospital, Hartford, CT
| | - A Ricci
- University of Connecticut, Storrs, CT; University of Manitoba, Winnipeg, MB, Canada; University of Connecticut Health Center, Farmington, CT; Hartford Hospital, Hartford, CT
| | - P DeFusco
- University of Connecticut, Storrs, CT; University of Manitoba, Winnipeg, MB, Canada; University of Connecticut Health Center, Farmington, CT; Hartford Hospital, Hartford, CT
| | - P Hegde
- University of Connecticut, Storrs, CT; University of Manitoba, Winnipeg, MB, Canada; University of Connecticut Health Center, Farmington, CT; Hartford Hospital, Hartford, CT
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233
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Kum KY, Kim EC, Yoo YJ, Zhu Q, Safavi K, Bae KS, Chang SW. Trace metal contents of three tricalcium silicate materials: MTA Angelus, Micro Mega MTA and Bioaggregate. Int Endod J 2013; 47:704-10. [DOI: 10.1111/iej.12208] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 10/28/2013] [Indexed: 11/28/2022]
Affiliation(s)
- K. Y. Kum
- Department of Conservative Dentistry; Dental Research Institute; School of Dentistry; Seoul National University Dental Hospital; Seoul National University; Seoul Korea
| | - E.-C. Kim
- Department of Maxillofacial Tissue Regeneration; School of Dentistry and Institute of Oral Biology; Kyung Hee University; Seoul Korea
| | - Y.-J. Yoo
- Department of Conservative Dentistry; Dental Research Institute; School of Dentistry; Seoul National University Dental Hospital; Seoul National University; Seoul Korea
| | - Q. Zhu
- Department of Endodontology; School of Dental Medicine; University of Connecticut Health Center; Farmington CT USA
| | - K. Safavi
- Department of Endodontology; School of Dental Medicine; University of Connecticut Health Center; Farmington CT USA
| | - K. S. Bae
- Department of Conservative Dentistry; Dental Research Institute; School of Dentistry; Seoul National University Dental Hospital; Seoul National University; Seoul Korea
| | - S. W. Chang
- Department of Conservative Dentistry; School of Dentistry; Kyung Hee University; Seoul Korea
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Affiliation(s)
- L. G. Meng
- School of Materials Science and EngineeringDalian University of Technology, Dalian, 116024, China
| | - C. F. Fang
- School of Materials Science and EngineeringDalian University of Technology, Dalian, 116024, China
| | - P. Peng
- School of Materials Science and EngineeringDalian University of Technology, Dalian, 116024, China
| | - S. B. Mi
- Chinese Academy of SciencesShenyang 110016, China
| | - Q. Zhu
- School of Materials Science and EngineeringDalian University of Technology, Dalian, 116024, China
| | - N. P. Li
- School of Materials Science and EngineeringDalian University of Technology, Dalian, 116024, China
| | - H. Hao
- School of Materials Science and EngineeringDalian University of Technology, Dalian, 116024, China
| | - X. G. Zhang
- School of Materials Science and EngineeringDalian University of Technology, Dalian, 116024, China
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235
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Hong GL, Chen XZ, Liu Y, Liu YH, Fu X, Lin SB, Zhu Q. Genetic variations in MOV10 and CACNB2 are associated with hypertension in a Chinese Han population. Genet Mol Res 2013; 12:6220-7. [PMID: 24338417 DOI: 10.4238/2013.december.4.9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Human hypertension is a complex, multifactorial disease. Multiple variants associated with hypertension have been identified in the large numbers of genome-wide association studies, meta-analysis, and case-control studies. The present study investigated the association between the single nucleotide polymorphisms (SNPs) of five candidate genes and the susceptibility and prognosis of hypertension in a Chinese Han population. A hospital-based case-control study in a Chinese Han population was carried out, including 500 hypertension patients and 506 healthy controls. The five SNP markers were detected using the Sequenom MassArray(®) iPLEX System. The association of genotypes with susceptibility to hypertension was analyzed using odds ratio, with 95% confidence interval and logistic regression. All five variants conformed to Hardy-Weinberg proportions in the controls. No significant differences were noted in the genotype distributions for AGTR1, PRRC2A, and CALCA polymorphisms in patients with hypertension (N = 500) and healthy controls (N = 506). SNP rs2932538, a variant in MOV10, was found to be significantly associated with an increased risk of hypertension. However, SNP rs4373814, a variant in CACNB2, showed a relevant association with a decreased risk of hypertension. In conclusion, the results of our case-control study confirmed the significant association of the SNP rs2932538 in MOV10 and SNP rs4373814 in CACNB2 with an increased risk of hypertension in a Chinese Han population, suggesting that the SNP rs2932538 may be a poor prognostic indicator for hypertension, while SNP rs4373814 may be a good prognostic indicator for hypertension in the same region. However, our findings need to be replicated in larger epidemiological and functional studies.
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Affiliation(s)
- G L Hong
- Department of Laboratory Medicine, The Fuzhou Second Affiliated Hospital of Xiamen University, Fujian, China
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Wang W, Lin H, Zhou L, Zhu Q, Gao S, Xie H, Liu Z, Xu Z, Wei J, Huang X, Zheng S. MicroRNA-30a-3p inhibits tumor proliferation, invasiveness and metastasis and is downregulated in hepatocellular carcinoma. Eur J Surg Oncol 2013; 40:1586-94. [PMID: 24290372 DOI: 10.1016/j.ejso.2013.11.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 10/18/2013] [Accepted: 11/01/2013] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) are small non-coding RNAs that regulate physiological and pathological processes by suppressing target gene expression. Altered expression of miR-30a-3p has been demonstrated in several cancers. However, little about how miR-30a-3p functions in these cancers has been reported, and the role of miR-30a-3p in hepatocellular carcinoma (HCC) is unknown. The purpose of this study was to identify the role and underlying molecular mechanism of action of miR-30a-3p in HCC. METHODS A total of 110 HCC patients, primarily treated by surgical removal of tumors, were involved in the study. HCC cell line Bel-7402 was selected to characterize the function of miR-30a-3p in vitro. RESULTS Our results showed that in 83.6% of the 110 HCC patients, expression of miR-30a-3p was significantly downregulated (P < 0.0001) in tumors compared to adjacent normal tissues. In a clinicopathological correlation analysis, downregulation of miR-30a-3p correlated with a significantly higher incidence of portal vein tumor thrombus (PVTT, P = 0.009). Moreover, miR-30a-3p markedly inhibited the invasion and migration of Bel-7402 HCC cells in vitro. Furthermore, miR-30a-3p overexpression had an inhibitory effect on cell proliferation, induced apoptosis and increased arrest of cells in the S phase. We further demonstrated that miR-30a-3p regulates HCC cell function by a mechanism involving reduced vimentin and MMP3 expression and restoration of E-cadherin expression. CONCLUSIONS our data suggest that miR-30a-3p is downregulated in HCC and acts as a tumor suppressor in vitro. Regulation of vimentin, E-cadherin and MMP3 by miR-30a-3p suggests a useful therapeutic strategy for tumors with reduced miR-30a-3p expression.
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Affiliation(s)
- W Wang
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Key Lab of Organ Transplantation, Department of Hepatobilliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - H Lin
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Key Lab of Organ Transplantation, Department of Hepatobilliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - L Zhou
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Key Lab of Organ Transplantation, Department of Hepatobilliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - Q Zhu
- Department of Vascular Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - S Gao
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Key Lab of Organ Transplantation, Department of Hepatobilliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - H Xie
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Key Lab of Organ Transplantation, Department of Hepatobilliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - Z Liu
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Key Lab of Organ Transplantation, Department of Hepatobilliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - Z Xu
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Key Lab of Organ Transplantation, Department of Hepatobilliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - J Wei
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Key Lab of Organ Transplantation, Department of Hepatobilliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - X Huang
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China
| | - S Zheng
- Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Key Lab of Organ Transplantation, Department of Hepatobilliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China.
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Zhang J, Zha W, Wang F, Jiang T, Xu S, Yu J, Zhou C, Shen T, Wu C, Zhu Q. Complement Activation and Liver Impairment in Trichloroethylene-Sensitized BALB/c Mice. Int J Toxicol 2013; 32:431-41. [DOI: 10.1177/1091581813511337] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Our recent studies have shown that trichloroethylene (TCE) was able to induce multisystem injuries in the form of occupational medicamentosa-like dermatitis, including skin, kidney, and liver damages. However, the role of complement activation in the immune-mediated liver injury is not known. This study examined the role of complement activation in the liver injury in a mouse model of TCE-induced sensitization. Treatment of female BALB/c mice with TCE under specific dosing protocols resulted in skin inflammation and sensitization. Skin edema and erythema occurred in TCE-sensitized groups. Trichloroethylene sensitization produced liver histopathological lesions, increased serum alanine aminotransferase, aspartate transaminase activities, and the relative liver weight. The concentrations of serum complement components C3a-desArg, C5a-desArg, and C5b-9 were significantly increased in 24-hour, 48-hour, and 72-hour sensitization-positive groups treated with TCE and peaked in the 72-hour sensitization-positive group. Depositions of C3a, C5a, and C5b-9 into the liver tissue were also revealed by immunohistochemistry. Immunofluorescence further verified high C5b-9 expression in 24-hour, 48-hour, and 72-hour sensitization-positive groups in response to TCE treatment. Reverse transcription–polymerase chain reaction detected C3 messenger RNA expression in the liver, and this was significantly increased in 24-hour and 48-hour sensitization-positive groups with a transient reduction at 72 hours. These results provide the first experimental evidence that complement activation may play a key role in the generation and progression of immune-mediated hepatic injury by exposure to TCE.
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Affiliation(s)
- Jiaxiang Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Wansheng Zha
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Feng Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Tao Jiang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Shuhai Xu
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Junfeng Yu
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Chengfan Zhou
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Tong Shen
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
| | - Changhao Wu
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Qixing Zhu
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
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238
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Zhu Y, Xu Y, Chen D, Zhang C, Rui W, Zhao J, Zhu Q, Wu Y, Shen Z, Wang W, Ning G, Wang X. Expression of STAT3 and IGF2 in adrenocortical carcinoma and its relationship with angiogenesis. Clin Transl Oncol 2013; 16:644-9. [PMID: 24178245 DOI: 10.1007/s12094-013-1130-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Accepted: 10/22/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of this study was to determine the correlation between human adrenocortical carcinoma and the proteins involved in tumor angiogenesis, and to evaluate the angiogenic status of adrenocortical carcinoma. METHODS The expression of signal transducer and activator of transcription 3 and insulin-like growth factor 2 as well as microvessel density was measured in a series of tissue samples from 44 human sporadic adrenocortical tumors by immunohistochemistry. These specimens were classified as adenomas (n = 20) and carcinomas (n = 24) according to the histological criteria defined by Weiss. RESULTS A total of 19 of 24 (79.17 %) malignant cases showed positive staining for signal transducer and activator of transcription 3 and 4 of 20 (20.00 %) benign cases showed positive, the difference of signal transducer and activator of transcription 3 expression between adrenocortical adenomas and adrenocortical carcinomas was statistically significant (P < 0.001). Similarly, insulin-like growth factor 2 staining was seen in 70.83 % (17/24) of the malignant cases versus 25.00 % (5/20) of the benign, the difference of insulin-like growth factor 2 expression among two groups was statistically significant (P = 0.002). Malignant cases showed higher microvessel density compared to benign tumors (84.70 ± 12.44 vs 21.05 ± 8.07, P < 0.001). Signal transducer and activator of transcription 3 and insulin-like growth factor 2 expression were positively correlated with microvessel density in all specimens (r_s = 0.832, P < 0.001; r_s = 0.703, P = 0.001). CONCLUSIONS This study has confirmed that adrenocortical carcinoma overexpress signal transducer and activator of transcription 3 and insulin-like growth factor 2; these results suggest that angiogenesis of human adrenocortical carcinoma may be mediated by these proteins and they could represent selective targets for the molecularly targeted treatments of adrenocortical carcinoma.
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Affiliation(s)
- Y Zhu
- Department of Urology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, No.197, Ruijin Er Road, Shanghai, 200025, China
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239
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Wu N, Sarna L, Hwang S, Zhu Q, Wang P, Siow Y, K O. Regulation of Hmg-Coa Reductase in Diet-Induced Non-Alcoholic Fatty Liver Disease. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Abstract
OBJECTIVE To evaluate the usefulness of ultrasonography in assessing laryngeal cancer. METHODS 72 patients with laryngeal carcinoma proven by surgery and pathology were enrolled. The pre-therapeutic ultrasonography and CT images were retrospectively evaluated, including tumour detection, localisation and invasion of intra- and extralaryngeal structures. A comparative assessment was made between the detection rate, correspondence rate of localisation and sensitivity and specificity of ultrasonography and CT. The mobility of the larynx was observed on real-time ultrasonography and compared with laryngoscopy. RESULTS The detection rate of ultrasonography [63 (87.5%)/72] was lower than that of CT [72 (100.0%)/72] (p=0.006). The primary foci were accurately located in 59 (93.7%) of 63 lesions using ultrasonography compared with 70 (97.2%) of 72 lesions using CT (p=0.392). In the evaluation of invasion, the sensitivity and specificity of ultrasonography were similar to that of CT in most of the intra- and extralaryngeal structures (p=0.059-1.000). A higher specificity was obtained during the assessment of the paraglottic space involvement when using ultrasonography than CT (94.9% vs 66.7%, p=0.001). For vocal cord fixation, no statistical difference was found between ultrasonography and laryngoscopy (p=0.223). CONCLUSION Ultrasonography could be used as a valuable supplementary imaging method to CT and laryngoscopy in the assessment of laryngeal carcinoma, even in male adults with some calcifications of the thyroid cartilage. ADVANCES IN KNOWLEDGE Our study demonstrates that ultrasonography, which has been used scarcely in the larynx, could supply useful information on the detection, localisation and intra- and extralaryngeal invasion of laryngeal carcinoma.
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Affiliation(s)
- C-X Xia
- Department of Diagnostic Ultrasound, Beijing Tongren Hospital, Capital Medical University, Beijing, China
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Lü BB, Li XJ, Sun WW, Li L, Gao R, Zhu Q, Tian SM, Fu MQ, Yu HL, Tang XM, Zhang CL, Dong HS. AtMYB44 regulates resistance to the green peach aphid and diamondback moth by activating EIN2-affected defences in Arabidopsis. Plant Biol (Stuttg) 2013; 15:841-50. [PMID: 23656500 DOI: 10.1111/j.1438-8677.2012.00675.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Accepted: 08/15/2012] [Indexed: 05/20/2023]
Abstract
Recently we showed that the transcription activator AtMYB44 regulates expression of EIN2, a gene essential for ethylene signalling and insect resistance, in Arabidopsis thaliana (Arabidopsis). To link the transactivation with insect resistance, we investigated the wild-type and atmyb44 mutant plants, genetically Complemented atmyb44 (Catmyb44) and AtMYB44-Overexpression Transgenic Arabidopsis (MYB44OTA). We found that AtMYB44 played a critical role in Arabidopsis resistance to the phloem-feeding generalist green peach aphid (Myzus persicae Sulzer) and leaf-chewing specialist caterpillar diamondback moth (Plutella xylostella L.). AtMYB44 was required not only for the development of constitutive resistance but also for the induction of resistance by both herbivorous insects. Levels of constitutive and herbivore-induced resistance were consistent with corresponding amounts of the AtMYB44 protein constitutively produced in MYB44OTA and induced by herbivory in Catmyb44. In both cases, AtMYB44 promoted EIN2 expression to a greater extent in MYB44OTA than in Catmyb44. However, AtMYB44-promoted EIN2 expression was arrested with reduced resistance levels in the EIN2-deficient Arabidopsis mutant ein2-1 and the MYB44OTA ein2-1 hybrid. In the different plant genotypes, only MYB44OTA constitutively displayed phloem-based defences, which are specific to phloem-feeding insects, and robust expression of genes involved in the biosynthesis of glucosinolates, which are the secondary plant metabolites known as deterrents to generalist herbivores. Phloem-based defences and glucosinolate-related gene expression were not detected in ein2-1 and MYB44OTA ein2-1. These results establish a genetic connection between the regulatory role of AtMYB44 in EIN2 expression and the development of Arabidopsis resistance to insects.
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Affiliation(s)
- B-B Lü
- State Ministry of Education Key Laboratory of Integrated Management of Crop Pests, Nanjing Agricultural University, Nanjing, China
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242
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Liu X, Zhou S, Zhu Q, Ye Y, Chen H. Ultra Preconcentration of Polycyclic Aromatic Hydrocarbons in Smoked Bacon by a Combination of SPE and DLLME. J Chromatogr Sci 2013; 52:932-7. [DOI: 10.1093/chromsci/bmt119] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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243
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Wilson A, Weightman A, Zhu Q, Bingham G. Using Dynamical Simulations to Quantify Affordances in the Task Space for Throwing to Hit Distant Targets. J Vis 2013. [DOI: 10.1167/13.9.749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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244
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Mirich T, Zhu Q, Bingham G. Relative Throw-ability of Objects of Varying Size and Weight Is Perceivable As Revealed By Magnitude Estimation Methods. J Vis 2013. [DOI: 10.1167/13.9.680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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245
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Zhu Q, Wilson A, Bingham G. Common Coding Not Supported: Expert and Novice Throwers Viewing Point-Light Displays of Self vs Other's Throwing Motions to Judge Target Locations. J Vis 2013. [DOI: 10.1167/13.9.761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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246
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Zhu Q, Wu J, Wang Z, Zhu W, Chen W, Wang S. The MSCT and MRI findings of collecting duct carcinoma. Clin Radiol 2013; 68:1002-7. [PMID: 23726725 DOI: 10.1016/j.crad.2013.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 04/05/2013] [Accepted: 04/10/2013] [Indexed: 10/26/2022]
Abstract
AIM To characterize the multi-section computed tomography (MSCT) and magnetic resonance imaging (MRI) features of collecting duct carcinoma (CDC). MATERIALS AND METHODS Twenty patients with CDC were studied retrospectively using MSCT (n = 20), and MSCT and MRI (n = 5). MSCT and MRI were undertaken to investigate tumour location, size, radiodensity, cystic or solid appearance, calcification, capsule, signal, enhancement pattern, and metastases. RESULTS Tumours (mean diameter 3.6 ± 1.7 cm) were solitary (20/20), solid (18/20), had cystic components (12/20), calcifications (12/20), poorly defined (18/20), were centred in the medulla (20/20), compressed the renal pelvis (12/20), and had lymph node metastases (2/20). On unenhanced computed tomography (CT), the radiodensity of the CDC was greater than that of the normal renal cortex or medulla (43.8 ± 2.4 versus 37.6 ± 5.1 or 32.6 ± 4.1, p = 0.041, n = 20). Five patients with CDC underwent MRI, which revealed cystic components (4/5), poorly defined CDC (5/5), and none of the patients had lymph node metastasis. The CDC was isointense on T1-weighted imaging, and iso- or hypointense on T2-weighted imaging. Enhancement was lower within the CDC than the renal cortex and medulla during all enhanced phases (p = 0.032, 0.001, 0.018, respectively, n = 20). CONCLUSION CDC should be considered when a renal tumour is centred in the medulla, with increased radiodensity on unenhanced CT and reduced enhancement compared to the adjacent cortex or medulla.
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Affiliation(s)
- Q Zhu
- Department of Medical Imaging, Subei People's Hospital, Medical School of Yangzhou University, Yangzhou, China
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247
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Abstract
BACKGROUND AND OBJECTIVE Dentin sialophosphoprotein (DSPP) and its cleaved products, dentin phosphoprotein (DPP) and dentin sialoprotein (DSP), play important roles in biomineralization. Recently, we observed that DSPP is highly expressed in the alveolar bone and cementum, indicating that this molecule may play an important role in the formation and maintenance of a healthy periodontium, and its deletion may cause increased susceptibility to periodontal diseases. The objective of this investigation was to study the effects of Dspp ablation on periodontal tissues by analyzing Dspp null mice. MATERIAL AND METHODS Newborn to 6-mo-old Dspp null mice were examined, and the 3- and 6-mo-old Dspp null mice were characterized in detail using X-ray radiography, histology and scanning electron microscopy (backscattered as well as resin-infiltrating). Wild-type mice of the same age groups served as the normal controls. RESULTS The Dspp null mice showed significant loss of alveolar bone and cementum, particularly in the furcation and interproximal regions of the molars. The alveolar bone appeared porous while the quantity of cementum was reduced in the apical region. The canalicular systems and osteocytes in the alveolar bone were abnormal, with reduced numbers of canaliculi and altered osteocyte morphology. The loss of alveolar bone and cementum along with the detachment of the periodontal ligaments (PDL) led to the apical migration of the epithelial attachment and formation of periodontal pockets. CONCLUSION Inactivation of DSPP leads to the loss of alveolar bone and cementum and increased susceptibility to bacterial infections in PDL of Dspp null mice. The fact that the loss of DSPP results in periodontal diseases indicates that this molecule plays a vital role in maintaining the health of the periodontium.
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Affiliation(s)
- M P Gibson
- Department of Biomedical Sciences, Baylor College of Dentistry, Texas A&M Health Science Center, Dallas, TX, USA
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248
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Li DY, Zhang L, Trask JS, Xu HL, Yin HD, Zhu Q. Genetic effects of polymorphisms in the prolactin receptor gene on chicken reproductive traits. Anim Prod Sci 2013. [DOI: 10.1071/an12178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Prolactin receptor (PRLR) is a single transmembrane protein through which prolactin plays a wide variety of physiological roles in vertebrates. Markers of alleles for the PRLR gene were assessed for the association with six reproductive traits (bodyweight at first egg; egg weight at first egg; age at first egg; number of eggs at 300 days of age; bodyweight at 300 days of age; and egg weight at 300 days of age) in a single generation of the Erlang Mountain Chicken. Five single-nucleotide polymorphisms were detected in the PRLR gene by sequencing pooled DNA samples. Genotypes were identified using PCR-single strand conformational polymorphism and direct PCR-sequencing methods. The GLM procedure was used to estimate the association between genotypes and reproductive traits. The results showed that at the P1 locus, individuals with genotype TT had shorter age at first egg and greater number of eggs at 300 days of age than those with genotype CC (P < 0.01). Our findings suggest that the single-nucleotide polymorphism g.-14A > G at P1 locus could be a potential genetic marker for age at first egg and number of eggs at 300 days of age in the Erlang Mountain Chicken and haplotype ATGTT might be advantageous for reproductive traits.
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249
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Meghea CI, Li B, Zhu Q, Raffo JE, Lindsay JK, Moore JS, Roman LA. Infant health effects of a nurse-community health worker home visitation programme: a randomized controlled trial. Child Care Health Dev 2013; 39:27-35. [PMID: 22372918 DOI: 10.1111/j.1365-2214.2012.01370.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Home visiting is supported as a way to improve child health and development. Home visiting has been usually provided by nurses or community health workers (CHWs). Few studies compared the child health advantages of a nurse-CHW team approach over nurse prenatal and postnatal home visiting. METHODS A randomized trial was conducted with Medicaid-insured pregnant women in Kent County, Michigan. Pregnant women were assigned to a team intervention including nurse-CHW home visitation, or standard community care (CC) including nurse home visitation. Morbidity was assessed in 530 infants over their first 12 months of life from medical claims and reported by the mother. RESULTS There were no differences in overall child health between the nurse-CHW intervention and the CC arm over the first year of life. There were fewer mother-reported asthma/wheezing/croup diagnostics in the team intervention group among infants whose mothers have low psychosocial resources (13% vs. 27%, P = 0.01; adjusted OR = 0.4, P = 0.01). There were no differences in diagnosed asthma/wheezing/croup documented by medical claims. There were no differences in immunizations, hospitalizations and ear infections. CONCLUSIONS There was no strong evidence that infant health was improved by the addition of CHWs to a programme of CC that included nurse home visitation. Targeting such interventions at common health problems of infancy and childhood or at diagnosed chronic conditions may prove more successful.
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Affiliation(s)
- C I Meghea
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, College of Human Medicine, East Lansing, MI 48824-1316, USA.
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250
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Abstract
The identification and utilization of potential candidate genes with significant effects on economically important traits have become increasingly important in poultry breeding programs. The prolactin (PRLR) receptor is a specific receptor for prolactin, which is an anterior pituitary peptide hormone involved in various physiological activities and is essential for reproductive success. In chickens, the PRLR gene resides on the Z chromosome. We used a pooled DNA sequencing approach for identifying SNPs of the PRLR gene. Three hundred and nine-six Erlang Mountainous chicken hens were genotyped for six SNPs using PCR-SSCP and PCR-sequencing methods; the association with chicken egg production traits was studied using general linear model procedures. Three linked SNPs (G14952A, A14969C and G14984A) at the P1 locus, two linked SNPs (G17560A and T17626A) at the P2 locus, and one SNP (T20868C) at the P3 locus were identified. Eight haplotypes were reconstructed on the basis of the six SNPs. The general linear model analysis indicated that there were significant associations of certain genotypes and haplotypes with some egg production traits. We conclude that chicken PRLR gene polymorphisms are associated with egg production traits and have potential as molecular markers for chicken breeding.
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Affiliation(s)
- L Zhang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Ya'an, P.R. China
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