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Xu L, Hu F, Zhu H, Liu X, Shi L, Li Y, Zhong H, Su Y. Soluble TAM receptor tyrosine kinases in rheumatoid arthritis: correlation with disease activity and bone destruction. Clin Exp Immunol 2017; 192:95-103. [PMID: 29148078 DOI: 10.1111/cei.13082] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 11/13/2017] [Indexed: 12/28/2022] Open
Abstract
The TAM receptor tyrosine kinases (TAM RTK) are a subfamily of receptor tyrosine kinases, the role of which in autoimmune diseases such as systemic lupus erythematosus has been well explored, while their functions in rheumatoid arthritis (RA) remain largely unknown. In this study, we investigated the role of soluble TAM receptor tyrosine kinases (sAxl/sMer/sTyro3) in patients with RA. A total of 306 RA patients, 100 osteoarthritis (OA) patients and 120 healthy controls (HCs) were enrolled into this study. The serum concentrations of sAxl/sMer/sTyro3 were measured by enzyme-linked immunosorbent assay (ELISA), then the associations between sAxl/sMer/sTyro3 levels and clinical features of RA patients were analysed. We also investigated whether sTyro3 could promote osteoclast differentiation in vitro in RA patients. The results showed that compared with healthy controls (HCs), sTyro3 levels in the serum of RA patients were elevated remarkably and sMer levels were decreased significantly, whereas there was no difference between HCs and RA patients on sAxl levels. The sTyro3 levels were correlated weakly but positively with white blood cells (WBC), immunoglobulin (Ig)M, rheumatoid factor (RF), swollen joint counts, tender joint counts, total sharp scores and joint erosion scores. Conversely, there were no significant correlations between sMer levels and the above indices. Moreover, RA patients with high disease activity also showed higher sTyro3 levels. In-vitro osteoclast differentiation assay showed further that tartrate-resistant acid phosphatase (TRAP)+ osteoclasts were increased significantly in the presence of sTyro3. Collectively, our study indicated that serum sTyro3 levels were elevated in RA patients and correlated positively with disease activity and bone destruction, which may serve as an important participant in RA pathogenesis.
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Affiliation(s)
- L Xu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - F Hu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - H Zhu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - X Liu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - L Shi
- Department of Rheumatology and Immunology, Peking University International Hospital, Beijing, China
| | - Y Li
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - H Zhong
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - Y Su
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
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Zhang H, Wu Y, Xue W, Zuo P, Oesingmann N, Gan Q, Huang Z, Wu M, Hu F, Kuang M, Song B. Arterial spin labelling MRI for detecting pseudocapsule defects and predicting renal capsule invasion in renal cell carcinoma. Clin Radiol 2017; 72:936-943. [PMID: 28673449 DOI: 10.1016/j.crad.2017.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 04/06/2017] [Accepted: 06/06/2017] [Indexed: 02/08/2023]
Abstract
AIM To evaluate prospectively the performance of combining morphological and arterial spin labelling (ASL) magnetic resonance imaging (MRI) for detecting pseudocapsule defects in renal cell carcinoma (RCC), and to predict renal capsule invasion confirmed histopathologically. MATERIALS AND METHODS Twenty consecutive patients with suspicious renal tumours underwent MRI. Renal ASL imaging was performed and renal blood flow was measured quantitatively. The diagnostic performance of T2-weighted images alone, and a combination of T2-weighted and ASL images for predicting renal capsule invasion were assessed. RESULTS Twenty renal lesions were evaluated in 20 patients. All lesions were clear cell RCCs (ccRCCs) confirmed at post-surgical histopathology. Fifteen ccRCCs showed pseudocapsule defects on T2-weighted images, of which 12 cases showed existing blood flow in defect areas on perfusion images. To predict renal capsule invasion, the sensitivity, specificity, positive predictive value, and negative predictive value were 100%, 71.4%, 86.7%, 100%, respectively, for T2-weighted images alone, and 92.3%, 100%, 100%, 87.5%, respectively, for the combination of T2-weighted and ASL images. CONCLUSION ASL images can reflect the perfusion of pseudocapsule defects and as such, the combination of T2-weighted and ASL images produces promising diagnostic accuracy for predicting renal capsule invasion.
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Affiliation(s)
- H Zhang
- Department of Radiology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, Sichuan 610041, China
| | - Y Wu
- School of Nursing, Chengdu University of Traditional Chinese Medicine, No. 1166, Liutai Avenue, Wenjiang District, Chengdu 611137, China
| | - W Xue
- Department of Urology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, Sichuan 610041, China
| | - P Zuo
- Siemens Healthcare, MR Collaborations NE Asia, No. 7, Wangjing Zhonghuan Nanlu, Chaoyang District, Beijing 100102, China
| | - N Oesingmann
- Siemens HC, No. 511, Benedict Avenue, Tarrytown, NY 10591-5097, USA
| | - Q Gan
- Department of Neurosurgery, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, Sichuan 610041, China
| | - Z Huang
- Department of Radiology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, Sichuan 610041, China
| | - M Wu
- Department of Radiology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, Sichuan 610041, China
| | - F Hu
- Department of Radiology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, Sichuan 610041, China
| | - M Kuang
- Department of Radiology, The Second Clinical Medicine School, Chengdu University of Traditional Chinese Medicine, No. 15, Section 4, Renmin South Road, Chengdu, Sichuan 610041, China
| | - B Song
- Department of Radiology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, Sichuan 610041, China.
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McDonald C, Henricson E, Abresch R, Duong T, Joyce N, Hu F, Clemens P, Hoffman E, Cnaan A, Gordish-Dressman H. Long-term benefits of glucocorticoids in Duchenne muscular dystrophy: is it worth it? Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.089] [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: 10/18/2022]
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54
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Hu F, Luan Y, Fei Z, Palubski IZ, Goldflam MD, Dai S, Wu JS, Post KW, Janssen GCAM, Fogler MM, Basov DN. Imaging the Localized Plasmon Resonance Modes in Graphene Nanoribbons. Nano Lett 2017; 17:5423-5428. [PMID: 28806525 DOI: 10.1021/acs.nanolett.7b02029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We report a nanoinfrared (IR) imaging study of the localized plasmon resonance modes of graphene nanoribbons (GNRs) using a scattering-type scanning near-field optical microscope (s-SNOM). By comparing the imaging data of GNRs that are aligned parallel and perpendicular to the in-plane component of the excitation laser field, we observed symmetric and asymmetric plasmonic interference fringes, respectively. Theoretical analysis indicates that the asymmetric fringes are formed due to the interplay between the localized surface plasmon resonance (SPR) mode excited by the GNRs and the propagative surface plasmon polariton (SPP) mode launched by the s-SNOM tip. With rigorous simulations, we reproduce the observed fringe patterns and address quantitatively the role of the s-SNOM tip on both the SPR and SPP modes. Furthermore, we have seen real-space signatures of both the dipole and higher-order SPR modes by varying the ribbon width.
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Affiliation(s)
- F Hu
- Department of Physics and Astronomy, U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States
| | - Y Luan
- Department of Physics and Astronomy, U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States
| | - Z Fei
- Department of Physics and Astronomy, U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States
| | - I Z Palubski
- Department of Physics and Astronomy, U.S. DOE Ames Laboratory, Iowa State University , Ames, Iowa 50011, United States
| | - M D Goldflam
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
- Sandia National Laboratories , Albuquerque, New Mexico 87185, United States
| | - S Dai
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
| | - J-S Wu
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
| | - K W Post
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
| | - G C A M Janssen
- Department of Precision and Microsystems Engineering, Delft University of Technology , Mekelweg 2, 2628 CD Delft, Netherland
| | - M M Fogler
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
| | - D N Basov
- Department of Physics, University of California at San Diego , La Jolla, California 92093, United States
- Department of Physics, Columbia University , New York, New York 10027, United States
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Hu F, Hsu H, Shih H, Chen C, Chang C. CHANGING FROM APPROPRIATE TO INAPPROPRIATE URINARY CATHETER USE AMONG HOSPITALIZED OLDER PATIENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- F. Hu
- National Cheng Kung University Hospital, Tainan, Taiwan,
| | - H. Hsu
- National Cheng Kung University Hospital, Tainan, Taiwan,
| | - H. Shih
- National Cheng Kung University Hospital, Tainan, Taiwan,
| | - C. Chen
- Chang Jung Christian University, Tainan, Taiwan
| | - C. Chang
- National Cheng Kung University Hospital, Tainan, Taiwan,
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Guan HQ, Chen ZJ, Zhou Y, Liu J, Sun WX, Yuan J, Liao YH, Dong NG, Liu JP, Feng KG, Zhang Q, Zhao X, Qian C, Hu F. [Pre- and post-orthotopic heart transplantation electrocardiogram characteristics of 998 patients]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:299-306. [PMID: 28545281 DOI: 10.3760/cma.j.issn.0253-3758.2017.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze pre- and post-operation electrocardiograms (ECGs) features of patients underwent orthotopic heart transplantation (OHT), and provide evidences for identifying and analyzing post OHT ECGs. Methods: Nine hundreds and ninty-eight pre- and post- OHT standard 12-leads ECGs from 110 consecutive patients, who underwent OHT in our hospital from May 2008 to May 2014, were analyzed. Results: The mean heart rate(HR)was (86.9±16.4) beats per minute before OHT, and (100.0±0.4) beats per minute after OHT. P wave's amplitude, duration, amplitude multiplied by duration of donor heart in lead Ⅱ were (0.124±0.069)mV, (111.1±17.2)ms, (14.34±9.51)mV·ms before OHT; (0.054±0.037)mV, (86.9±27.0)ms, (5.02±4.03)mV·ms at 1 month after OHT; (0.073±0.049)mV, (93.9±17.5) ms, (7.00±4.81)mV·ms at 6 years after OHT. ECGs rotation occurred in 83.64%(92/110) patients after OHT, and prevalence of clockwise rotation was 76.36%(84/110). Sinus tachycardia was evidenced in 99.09%(109/110) patients after OHT, and incomplete right bundle branch block was present in 60.91%(67/110) patients after OHT. Pseudo complete atrioventricular block mostly occurred at 2 days after OHT. Prevalence of double sinus rhythm was 27.95%(263/941) post OHT, 40% of them occurred between the 1st and the 2nd month post OHT; the atrial rate of recipient hearts was (104.0±10.2) beats per minucte between the 3rd and the 6th month post OHT, and was (95.3±4.2) beats per minucte between the 4th year and the 5th year. P wave's amplitude, duration, amplitude multiplied by duration of recipient heart in lead Ⅱ were (0.066±0.055) mV, (52.8±34.7) ms, (4.67±4.95) mV·ms at 1 month after OHT, (0.043±0.040)mV, (44.4±40.5) ms , (3.11±3.61) mV·ms between the 1st year and 2nd year after OHT. The absolute value of P-wave(originating from the donor heart) terminal force in chest leads increased in 48.99%(461/941) patients post OHT, the P-wave terminal force of V(1) , V(2) and V(3) were -0.044(-0.066, -0.028), -0.060(-0.087, -0.038), -0.035(-0.056, 0) mm·s. Notched P wave in chest leads was presented in 10.31%(97/941) patients post OHT. PR segment depression in chest leads occurred in 60.24%(100/166) patients between the 3rd month and the 6th month, the incidence of PR segment depression in V(1) , V(2) and V(3) was 21.04%(198/941), 37.41%(352/941) and 28.69%(270/941), respectively. Conclusions: OHT is related to significantly changed ECGs. The mean HR increased significantly after OHT, then decreased gradually after half a year to one year, but it was still higher than preoperative mean HR after five or six years; the P waves of donor heart were usually inconspicuous or small in first month after OHT, and they became bigger after 2 months, and their duration and amplitude then became relatively steady afterwards. ECGs rotation, especially the clockwise rotation, was common post OHT. A variety of arrhythmias originating from the donor heart including sinus tachycardia and incomplete right bundle branch block could be found. Pseudo complete atrioventricular block could also be found in the early phase after OHT. With the extension of time, the incidence of double sinus rhythm reduced gradually. The atrial rate and P wave of recipient heart presented with a tendency to become lower. The absolute value of P-waves(originating from the donor heart) terminal force in chest leads (mainly V(1), V(2) and V(3)) increased, notched P waves in chest leads (mainly V(1), V(2)) and PR segments depression in chest leads (mainly V(2), V(3) and V(4)) also belong to typical post OHT ECGs features.
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Affiliation(s)
- H Q Guan
- Department of Cardiology, Institute of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Hu F, Gao X, She R, Chen J, Mao J, Xiao P, Shi R. Effects of antimicrobial peptides on growth performance and small intestinal function in broilers under chronic heat stress. Poult Sci 2017; 96:798-806. [DOI: 10.3382/ps/pew379] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 09/15/2016] [Indexed: 12/31/2022] Open
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Zhang X, Li J, Hu F, Gao S, Pu X, Yong S. [Decreased number and immune activity of splenic T lymphocytes in mice exposed to hypoxia at high altitude]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2017; 33:164-167. [PMID: 29762003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To explore the changes of splenic T lymphocyte subsets and functions in mice under high-altitude hypoxic conditions. METHODS After mice were exposed to an altitude of 400 m,2200 m and 4200 m for 30 days,ELISA was used to detect the concentrations of interleukin-4( IL-4) and interferon-γ( IFN-γ) in the cultured splenocyte supernatant; MTT assay was used to analyze the proliferation of splenic T lymphocytes; flow cytometry was performed to examine the alterations of splenic T lymphocyte subsets. RESULTS After exposed to hypoxia for 30 days,in comparison with the control group( 400 m),the spleen index of the mice increased significantly in both the 2200 m and 4200 m groups,and the spleen index of the 4200 m group was apparently higher than that of the 2200 m group; the concentration of IFN-γ in the splenocyte supernatant of the 4200 m and 2200 m groups significantly decreased,while the concentration of IL-4 had no obvious change. The proliferation of splenic T lymphocyte was reduced obviously in both the 2200 m and 4200 m groups,at the same time,the proliferation of T cells in the 4200 m group was markedly lower than that in the 2200 m group. The percentages of splenic CD3~+,CD4~+and CD8~+T lymphocytes decreased markedly in the 2200 m and 4200 m groups,among them,the number of CD4~+T cel s decreased significantly than CD8~+T cel s. In addition,CD3~+and CD4~+T lymphocyte percentages of the 4200 m group obviously decreased compared with the 2200 m group. CONCLUSION In mice exposed to hypoxia at an altitude of 4200 m and 2200 m for 30 days,the number of T lymphocyte subsets and the proliferation ability of T cel s decrease,and the level of IFN-γ is decreased as well.
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Hu F, Zhu D, Wang F, Morrissey I, Wang J, Torumkuney D. Results from the Survey of Antibiotic Resistance (SOAR) 2009-11 and 2013-14 in China. J Antimicrob Chemother 2016; 71 Suppl 1:i33-43. [PMID: 27048581 DOI: 10.1093/jac/dkw065] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 11/12/2022] Open
Abstract
OBJECTIVES To compare antibiotic susceptibility of community-acquired respiratory bacteria in China during 2009-11 and 2013-14. METHODS Susceptibility was determined by Etest(®) (bioMérieux) or disc diffusion according to CLSI, EUCAST and pharmacokinetic/pharmacodynamic (PK/PD) breakpoints, except for azithromycin where Etest(®) breakpoints (in CO2 incubation) were used in place of standard CLSI breakpoints. Statistical significance of differences in susceptibility across time periods was evaluated using Fisher's exact test. RESULTS During 2009-11, 434 Streptococcus pneumoniae, 307 Haemophilus influenzae and 140 Moraxella catarrhalis were collected from eight centres and during 2013-14, 208 S. pneumoniae, 185 H. influenzae and 80 M. catarrhalis were collected from five centres. Penicillin-non-susceptible isolates remained stable at ∼66% over both time periods but susceptibility decreased significantly for amoxicillin/clavulanic acid (or amoxicillin) and cefaclor. For H. influenzae, the proportion of β-lactamase-positive isolates and β-lactamase-negative ampicillin-resistant strains (CLSI definition) was higher in 2013-14 (25.4% and 7.0%, respectively) than in 2009-11 (16.3% and 3.6%, respectively), with decreased ampicillin and cephalosporin susceptibility. By 2009-11 and 2013-14, only amoxicillin/clavulanic acid (amoxicillin), levofloxacin, penicillin (intravenously) and chloramphenicol inhibited >70% of S. pneumoniae. During 2013-14, M. catarrhalis showed increasing resistance, with cefaclor and levofloxacin susceptibility decreasing significantly. However, amoxicillin/clavulanic acid, cefuroxime and levofloxacin continued to inhibit >90% of isolates. CONCLUSIONS On the whole, antimicrobial susceptibility decreased in China between 2009-11 and 2013-14. In 2013-14, amoxicillin/clavulanic acid, levofloxacin and chloramphenicol were the most active antibacterial agents tested against community-acquired respiratory pathogens when assessed by CLSI, EUCAST or PK/PD breakpoints. Resistance to other antibacterials in China was generally high. Our data demonstrate the need to harmonize breakpoints for these pathogens.
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Affiliation(s)
- F Hu
- Institute of Antibiotics, Huashan Hospital, Fudan University, Building No. 6, 12 Middle Urumqi Road, Shanghai, China Key Laboratory of Clinical Pharmacology of Antibiotics, Ministry of Health, Building No. 6, 12 Middle Urumqi Road, Shanghai, China
| | - D Zhu
- Institute of Antibiotics, Huashan Hospital, Fudan University, Building No. 6, 12 Middle Urumqi Road, Shanghai, China Key Laboratory of Clinical Pharmacology of Antibiotics, Ministry of Health, Building No. 6, 12 Middle Urumqi Road, Shanghai, China
| | - F Wang
- Institute of Antibiotics, Huashan Hospital, Fudan University, Building No. 6, 12 Middle Urumqi Road, Shanghai, China Key Laboratory of Clinical Pharmacology of Antibiotics, Ministry of Health, Building No. 6, 12 Middle Urumqi Road, Shanghai, China
| | - I Morrissey
- IHMA Europe Sàrl, 9A route de la Corniche, Epalinges 1066, Switzerland
| | - J Wang
- GlaxoSmithKline, The Headquarters Building, No. 168 Middle Tibet Road, Shanghai 200001, China
| | - D Torumkuney
- GlaxoSmithKline, 980 Great West Road, Brentford, Middlesex TW8 9GS, UK
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El Osta B, Hu F, Sadek R, Chintalapally R, Tang SC. A meta-analysis of immune-related adverse events (irAE) of immune checkpoint inhibitors (ICI) from cancer clinical trials. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw378.31] [Citation(s) in RCA: 3] [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: 11/13/2022] Open
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Luo ZL, Chen M, Shang XF, Hu F, Ni Z, Cheng P, Ji XF, Wu KR, Zhang XQ. [Direct anterior approach versus posterolateral approach for total hip arthroplasty in the lateral decubitus position]. Zhonghua Yi Xue Za Zhi 2016; 96:2807-2812. [PMID: 27686547 DOI: 10.3760/cma.j.issn.0376-2491.2016.35.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the clinical efficacy of the direct anterior approach (DAA) and the posterolateral approach (PLA) for total hip arthroplasty (THA) in the lateral decubitus position. Methods: From July to December, 2014, 104 patients randomly divided into two equal groups of the DAA group and the PLA group underwent unilateral primary THA procedures.All procedures were performed by the same surgeon in the Department of Orthopaedics, the Affiliated Anhui Provincial Hospital of Anhui Medical University.General data, perioperative index, postoperative function and radiological evaluation were recorded and statistically analyzed. Results: The patients had an average follow-up of 14 (range, 10-16) months.No significant differences were detected with respect to the operation time, incision length, preoperative Hb concentration and transfusion rate between two groups (P> 0.05 for all comparisons). However, there were significant differences associated with the intraoperative bleeding, postoperative drainage and postoperative Hb concentration in the two groups(P<0.05 for all comparisons). The DAA group showed significant superior outcomes compared with the PLA group in the Harris hip scores [(83.6±7.1) vs (79.8±6.6), P<0.05], WOMAC[ (28.9±6.1) vs (36.1±6.9), P<0.001], and VAS pain scores[ (2.2±0.9) vs (2.9±1.1), P<0.05]at 1 month after surgery. No differences were seen between the study groups in the evaluation of radiography and the incidence of adverse event (P> 0.05 for all comparisons). Conclusions: Compared with the posterolateral approach, the present study shows the exciting results in patients underwent the DAA THA in the lateral decubitus position at early follow-up.The advantages of THA using the DAA include less operative trauma, alleviation of postoperative pain, and faster postoperative rehabilitation. It is a safe, reliable and effective surgery approach.
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Affiliation(s)
- Z L Luo
- The Department of Orthopaedics, the Affiliated Anhui Provincial Hospital of Anhui Medical University, Hefei 230001, China
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Dai Z, Cai W, Hu F, Lan Y, Li L, Chung C, Caughey B, Zhang K, Tang X. Plasma Mitochondrial DNA Levels as a Biomarker of Lipodystrophy Among HIV-infected Patients Treated with Highly Active Antiretroviral Therapy (HAART). Curr Mol Med 2016; 15:975-9. [PMID: 26592244 PMCID: PMC5403959 DOI: 10.2174/1566524016666151123114401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 10/28/2015] [Accepted: 11/18/2015] [Indexed: 11/22/2022]
Abstract
Lipodystrophy is a common complication in HIV-infected patients taking highly active antiretroviral therapy. Its early diagnosis is crucial for timely modification of antiretroviral therapy. We hypothesize that mitochondrial DNA in plasma may be a potential marker of LD in HIV-infected individuals. In this study, we compared plasma mitochondrial DNA levels in HIV-infected individuals and non-HIV-infected individuals to investigate its potential diagnostic value. Total plasma DNA was extracted from 67 HIV-infected patients at baseline and 12, 24 and 30 months after initiating antiretroviral therapy. Real-time quantitative PCR was used to determine the mitochondrial DNA levels in plasma. Lipodystrophy was defined by the physician-assessed presence of lipoatrophy or lipohypertrophy in one or more body regions. The mitochondrial DNA levels in plasma were significantly higher at baseline in HIV-infected individuals than in non-HIV-infected individuals (p<0.05). At month 30, 33 out of 67 patients (49.2%) showed at least one sign of lipodystrophy. The mean plasma mitochondrial DNA levels in lipodystrophy patients were significantly higher compared to those without lipodystrophy at month 24 (p<0.001). The receiver operating curve analysis demonstrated that using plasma mitochondrial DNA level (with cut-off value <5.09 log10 copies/ml) as a molecular marker allowed identification of patients with lipodystrophy with a sensitivity of 64.2% and a specificity of 73.0%. Our data suggest that mitochondrial DNA levels may help to guide therapy selection with regards to HIV lipodystrophy risk.
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Affiliation(s)
| | | | | | | | | | | | | | - K Zhang
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA.
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Ma Q, Wu F, Henderson G, Rennie S, Rich Z, Cheng Y, Hu F, Cai W, Tucker J. 55 ‘I can coexist with HIV’: a qualitative study of perceptions of HIV “cure” among people living with HIV in Guangzhou, China. J Virus Erad 2016. [DOI: 10.1016/s2055-6640(20)31000-1] [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: 10/23/2022] Open
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Wang K, Jin X, Liu J, Hu F. Potential of dietary propolis in protecting bovine mammary epithelial cells against mastitis pathogens using in vitro models. Journal of Nutrition & Intermediary Metabolism 2016. [DOI: 10.1016/j.jnim.2015.12.299] [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: 10/21/2022] Open
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Pyrzak A, Hu F, Rungruang B, Sadek R, Macfee M, Ghamande S. Efficacy of levonorgestrel intrauterine device (LIUD) and transvaginal ultrasound (TVUS) as treatment and surveillance of women with early endometrial cancer (EC) and complex atypical hyperplasia (CAH) who are poor surgical candidates. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.177] [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: 10/21/2022]
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66
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Hu F, Xie L, Yu L, Chen J, Liu HM. [Biomarker screening of rat pulmonary hypertension model by transcriptome sequencing]. Zhonghua Er Ke Za Zhi 2016; 54:273-7. [PMID: 27055426 DOI: 10.3760/cma.j.issn.0578-1310.2016.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To screen relative gene and pathway of rat severe pulmonary hypertension by transcriptome sequencing. METHOD Pulmonary hypertension animal model of SD rats was established by left lung resection and hypodermic injection of monocrotaline.Monocrotaline was injected subcutaneously one week after left lung resection.Eight rats at 1, 3, 5 weeks after the injection of monocrotaline respectively were named group M1, group M2 and group M3.Eight normal rats were assigned into control group (group C). The right lung tissue was used for transcriptome sequencing to screen the differentially expressed genes.KEGG pathway analysis was performed to screen the pathways with enriched differentially expressed genes. RESULT The animal model was established successfully.The pulmonary artery pressure was as follows: group C (28.6±3.0) mmHg(1 mmHg=0.133 kPa), group M1 (38.9±3.3) mmHg, group M2 (50.8±3.9) mmHg, group M3 (51.5±3.5) mmHg.The pressure elevated in group M1 compared with group C (P=0.007). The pressure in M2 and M3 elevated compared with M1(P=0.002 and P<0.001 respectively). The pressure showed no significant difference between group M3 and group M2(P=1.000). The genes possibly associated with the formation of severe pulmonary hypertension were epithelial specific receptor tyrosine kinase(Tie2) and thrombospondin-1(TSP-1). Tie2 was down-regulated (q<0.005) in the early stage of pulmonary hypertension and up-regulated (q<0.005) in the late stage of pulmonary hypertension.TSP-1 was up-regulated (q<0.005) in the early stage of pulmonary hypertension and down-regulated (q<0.005) in the late stage of pulmonary hypertension.In the stage of severe pulmonary hypertension, the differentially expressed genes were enriched mainly in the pathways of phosphatidylinostitol 3-kinase, focal adhesion kinase and extracellular matrix receptor interaction. CONCLUSION The study provides transcriptome information of rat pulmonary hypertension model and normal rat.Possible mechanisms of pulmonary hypertension are found.These genes and pathways might be new precursor for the diagnosis and treatment of pulmonary hypertension.
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Affiliation(s)
- F Hu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China
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Xu H, Hu F, Hu H, Sun W, Jiao W, Li R, Lei T. Antibiotic prophylaxis for shunt surgery of children: a systematic review. Childs Nerv Syst 2016; 32:253-8. [PMID: 26499129 DOI: 10.1007/s00381-015-2937-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 10/14/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The object of this study was to evaluate the clinical effectiveness of antibiotic prophylaxis in children who underwent placement of intracranial ventricular shunts. METHODS In this paper, the authors report a systematic review and meta-analysis of infection rate for pediatric shunt implantation surgery. Randomized or non-randomized controlled trials for comparing the use of prophylactic antibiotics in intracranial ventricular shunt procedures with placebo or no antibiotics were included in the review. RESULTS Seven published reports of eligible studies involving 694 participants meet the inclusion criteria. Compared with the control group, antibiotic prophylaxis had made a significant difference in infection rate (RR = 0.59, 95% CI = 0.38, 0.90, P < 0.05). CONCLUSION Although current evidence demonstrates that antibiotic prophylaxis can lead to a significant reduction of the infection rate of shunt surgery, more evidence from advanced multi-center studies is needed to provide instruction for the use of prophylactic antibiotics.
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Affiliation(s)
- H Xu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - F Hu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - H Hu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - W Sun
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - W Jiao
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - R Li
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - T Lei
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Zhu J, Sun L, Ding B, Yang Y, Xu X, Liu W, Zhu D, Yang F, Zhang H, Hu F. Outbreak of NDM-1-producing Klebsiella pneumoniae ST76 and ST37 isolates in neonates. Eur J Clin Microbiol Infect Dis 2016; 35:611-8. [DOI: 10.1007/s10096-016-2578-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 01/04/2016] [Indexed: 11/30/2022]
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69
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Wei H, Ma Y, Liu J, Ding C, Hu F, Yu L. Proteomic analysis of cortical brain tissue from the BTBR mouse model of autism: Evidence for changes in STOP and myelin-related proteins. Neuroscience 2016; 312:26-34. [DOI: 10.1016/j.neuroscience.2015.11.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 11/02/2015] [Accepted: 11/03/2015] [Indexed: 01/19/2023]
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Hu F, Qian ZW. Characteristic analysis of white matter lesions in migraine patients with MRI. Eur Rev Med Pharmacol Sci 2016; 20:1032-1036. [PMID: 27049253] [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: 06/05/2023]
Abstract
OBJECTIVE The aim of this study is to analyze the characteristics of white matter lesions in abnormal manifestations of magnetic resonance imaging (MRI) of patients with migraine, and its relationship with migraine. PATIENTS AND METHODS 38 patients, diagnosed with migraine were continuously selected as the observation group, while during the same period, 30 healthy individuals were selected as the control group. The differences of the features of MRI of two groups, the ratios of white matter lesions manifestations and the severity were compared. RESULTS The manifestations of MRI in patients with migraine were mainly white matter lesions. The accuracy rate was 86.7%, and the sensibility was 92.3%. According to Wahlund white matter lesions classifications, patients with migraine were mainly Level II and Level III (84.2%). It can be acquired from relevant analyses that white matter lesions classifications and the degrees of migraine were positively correlated (p < 0.05). White matter lesions were mainly distributed in the frontal lobe (78.9%), limbic system (60.5%) and parietal lobe (28.9%). CONCLUSIONS The MRI of migraine, the manifestations of white matter lesions were relatively sensitive. The higher the classification was linked with the degree of migraine. They were mainly distributed in the frontal lobe, limbic system and parietal lobe.
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Affiliation(s)
- F Hu
- College of Health Information Technology and Management, Shanghai University of Medicine and Health Sciences, Shanghai, China.
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71
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Hu BJ, Xu LN, Zhou ZY, Hu F, Luan FG, Chen X, Li ZZ. Molecular tracing of white muscardine in Asian corn borer using inter-simple sequence repeat (ISSR) analysis. Genet Mol Res 2015; 14:18720-18730. [PMID: 26782522] [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: 06/05/2023]
Abstract
Beauveria bassiana is a soil fungus that parasitizes arthropod species, and is used to control the Asian corn borer in Northeast China. In this study, B. bassiana was investigated in Xiaoxian County and Baicheng City, and the results were compared with those of Gongzhuling City, where the fungus was not applied. Using the inter-simple sequence repeat (ISSR) molecular marker technique, 198 isolates were extracted from Asian corn borer and other insect cadavers, and soil and air, and two released strains were analyzed to trace the infection source. In Xiaoxian and Baicheng populations, artificially released B. bassiana subpopulations were more abundant than indigenous fungi, and the released strains were the main cause of disease in those areas. Artificial B. bassiana displayed positive effect on overwintering of Asian corn borers in corn straw stacks in Xiaoxian County. Indigenous populations in Gongzhuling City showed higher genetic variation. In summary, we identified a significant correlation between genetic distance and geographic distance (P < 0.01).
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Affiliation(s)
- B J Hu
- Provincial Key Laboratory of Microbial Control, Anhui Agricultural University, Hefei, Anhui, China
- Institute of Plant Protection and Agro-Products Safety, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - L N Xu
- Institute of Plant Protection and Agro-Products Safety, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - Z Y Zhou
- Institute of Plant Protection and Agro-Products Safety, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - F Hu
- Institute of Plant Protection and Agro-Products Safety, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - F G Luan
- Provincial Key Laboratory of Microbial Control, Anhui Agricultural University, Hefei, Anhui, China
| | - X Chen
- Provincial Key Laboratory of Microbial Control, Anhui Agricultural University, Hefei, Anhui, China
| | - Z Z Li
- Provincial Key Laboratory of Microbial Control, Anhui Agricultural University, Hefei, Anhui, China
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73
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Zhou K, Hu F, Wang C, Xu M, Lan Y, Morano J, Lemon S, Cai W, Tucker J. Genotypic distribution and hepatic fibrosis among HIV/HCV coinfected individuals in southern China: A retrospective cross-sectional study. J Clin Virol 2015. [DOI: 10.1016/j.jcv.2015.06.025] [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: 11/17/2022]
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74
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Hu F, Deng X, Yang X, Jin H, Gu D, Lv X, Wang C, Zhang Y, Huo X, Shen Q, Luo Q, Zhao F, Ge T, Zhao F, Chu W, Shu H, Yao M, Fan J, Qin W. Hypoxia upregulates Rab11-family interacting protein 4 through HIF-1α to promote the metastasis of hepatocellular carcinoma. Oncogene 2015; 34:6007-17. [PMID: 25745995 DOI: 10.1038/onc.2015.49] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 12/23/2014] [Accepted: 01/14/2015] [Indexed: 12/21/2022]
Abstract
Hypoxic microenvironment is a powerful driving force for the invasion and metastasis of hepatocellular carcinoma (HCC). Hypoxia-inducible factor 1α (HIF-1α), as a crucial regulator of transcriptional responses to hypoxia, induces the expression of multiple target genes involved in different steps of HCC metastatic process. It is critical to find target genes associated with metastasis under hypoxia for shedding new light on molecular mechanism of HCC metastasis. In this study, we uncovered that hypoxia could induce the upregulation of Rab11-family interacting protein 4 (Rab11-FIP4) and activation of Rab11-FIP4 promoter by HIF-1α. The overexpression of Rab11-FIP4 significantly enhanced the mobility and invasiveness of HCC cells in vitro, also contributed to distant lung metastasis in vivo, whereas silencing of Rab11-FIP4 decreased the ability of migration and invasion in HCC cells in vitro and suppressed lung metastasis in vivo. Rab11-FIP4 facilitated HCC metastasis through the phosphorylation of PRAS40, which was regulated by mTOR. Furthermore, the expression level of Rab11-FIP4 was significantly increased in HCC tissues and high expression of Rab11-FIP4 was closely correlated with vascular invasion and poor prognosis in HCC patients. A markedly positive correlation between the expression of Rab11-FIP4 and HIF-1α was observed in HCC tissues and combination of Rab11-FIP4 and HIF-1α was a more valuable predictor of poor prognosis for HCC patients. In conclusion, Rab11-FIP4 is a target gene of HIF-1α and has a pro-metastatic role in HCC, suggesting that Rab11-FIP4 may be a promising candidate target for HCC treatment.
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Affiliation(s)
- F Hu
- Shanghai Medical College of Fudan University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Deng
- Shanghai Medical College of Fudan University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Yang
- Key Laboratory for Carcinogenesis and Cancer Invasion, The Chinese Ministry of Education, Liver Cancer Institute, Zhongshan Hospital and Shanghai Medical College, Fudan University, Shanghai, China
| | - H Jin
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - D Gu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Pathophysiology, Guangdong Medical College, Dongguan, China
| | - X Lv
- Basic Medical Research Centre, Medical College of Nantong University, Nantong, China
| | - C Wang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Huo
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Shen
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Luo
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - F Zhao
- Basic Medical Research Centre, Medical College of Nantong University, Nantong, China
| | - T Ge
- Shanghai Medical College of Fudan University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - F Zhao
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W Chu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Shu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - M Yao
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Fan
- Key Laboratory for Carcinogenesis and Cancer Invasion, The Chinese Ministry of Education, Liver Cancer Institute, Zhongshan Hospital and Shanghai Medical College, Fudan University, Shanghai, China
| | - W Qin
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Hu B, Xu L, Zhou Z, Hu F, Luan F, Chen X, Li Z. Molecular tracing of white muscardine in Asian corn borer using inter-simple sequence repeat (ISSR) analysis. Genet Mol Res 2015. [DOI: 10.4238/2015.december.28.21] [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: 11/03/2022]
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76
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Niu D, Zheng H, Corona M, Lu Y, Chen X, Cao L, Sohr A, Hu F. Transcriptome comparison between inactivated and activated ovaries of the honey bee Apis mellifera L. Insect Mol Biol 2014; 23:668-681. [PMID: 25039886 DOI: 10.1111/imb.12114] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Ovarian activity not only influences fertility, but is also involved with the regulation of division of labour between reproductive and behavioural castes of female honey bees. In order to identify candidate genes associated with ovarian activity, we compared the gene expression patterns between inactivated and activated ovaries of queens and workers by means of high-throughput RNA-sequencing technology. A total of 1615 differentially expressed genes (DEGs) was detected between ovaries of virgin and mated queens, and more than 5300 DEGs were detected between inactivated and activated worker ovaries. Intersection analysis of DEGs amongst five libraries revealed that a similar set of genes (824) participated in the ovary activation of both queens and workers. A large number of these DEGs were predominantly related to cellular, cell and cell part, binding, biological regulation and metabolic processes. In addition, over 1000 DEGs were linked to more than 230 components of Kyoto Encyclopedia of Genes and Genomes pathways, including 25 signalling pathways. The reliability of the RNA-sequencing results was confirmed by means of quantitative real-time PCR. Our results provide new insights into the molecular mechanisms involved in ovary activation and reproductive division of labour.
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Affiliation(s)
- D Niu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
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Dzaye ODA, Hu F, Derkow K, Euskirchen P, Harms C, Lenhardt S, Wolf SA, Kettenmann H, Synowitz M. P17.25 * GLIOMA-INITIATING CELL INDUCED INTERLEUKIN-6 PRODUCTION IS MEDIATED BY TOLL-LIKE RECEPTOR 4 IN MICROGLIA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.355] [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: 11/14/2022] Open
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78
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Hu F, Ku M, Markovic D, Dzaye ODA, Lehnardt S, Wolf SA, Kettenmann H, Synowitz M. P17.40 * GLIOMA ASSOCIATED MICROGLIAL MMP9 EXPRESSION IS UP REGULATED BY TLR2 SIGNALLING AND SENSITIVE TO MINOCYCLINE. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.369] [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: 11/14/2022] Open
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79
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Du Y, Su Y, He J, Yang Y, Shi Y, Cui Y, Luo C, Wu X, Liu X, Hu F, Ma X, Zheng L, Zhang J, Zuo X, Sheng Y, Wu L, Chen X, Gao Y, Zhang X, Guo J, Li Z. OP0216 The Functional Rather than Nonfunctional LILRA3 Contributes to Susceptibility and Subphenotypes of Systemic Lupus Erythematosus and SjÖGren's Syndrome. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2106] [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: 11/03/2022]
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80
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Vose LR, Vinukonda G, Diamond D, Korumilli R, Hu F, Zia MTK, Hevner R, Ballabh P. Prenatal betamethasone does not affect glutamatergic or GABAergic neurogenesis in preterm newborns. Neuroscience 2014; 270:148-57. [PMID: 24735821 DOI: 10.1016/j.neuroscience.2014.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/03/2014] [Accepted: 04/04/2014] [Indexed: 10/25/2022]
Abstract
Prenatal glucocorticoids (GCs) are routinely used for pregnant women in preterm labor to prevent respiratory distress syndrome and intraventricular hemorrhage in premature infants. However, the effect of antenatal GCs on neurogenesis in preterm neonates remains elusive. Herein, we hypothesized that prenatal GCs might suppress both glutamatergic and GABAergic neurogenesis in preterm rabbits and that this treatment would induce distinct changes in the expression of transcription factors regulating these developmental events. To test our hypotheses, we treated pregnant rabbits with betamethasone at E27 and E28, delivered the pups at E29 (term=32d), and assessed neurogenesis at birth and postnatal day 3. We quantified radial glia (Sox2(+)) and intermediate progenitor cells (Tbr2(+)) in the dorsal cortical subventricular zone to assess glutamatergic neuronal progenitors, and counted Nkx2.1(+) and Dlx2(+) cells in the ganglionic eminence to evaluate GABAergic neurogenesis. In addition, we assayed transcription factors regulating neurogenesis. We found that prenatal GCs did not affect the densities of radial glia and intermediate progenitors of glutamatergic or GABAergic neurons. The number of GABA(+) interneurons in the ganglionic eminence was similar between the prenatal GC-treated pups compared to untreated controls. Moreover, the mRNA expression of transcription factors, including Pax6, Ngn1/2, Emx1/2, Insm1, Dlx1, Nkx2.1, and Gsh2, were comparable between the two groups. However, there was a transient elevation in Mash1 protein in betamethasone-treated pups relative to controls at birth. These data suggest that prenatal GC treatment does not significantly impact the balance of glutamatergic and GABAergic neurogenesis in premature infants.
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Affiliation(s)
- L R Vose
- Department of Pediatrics, New York Medical College-Westchester Medical Center, Valhalla, NY, United States
| | - G Vinukonda
- Department of Pediatrics, New York Medical College-Westchester Medical Center, Valhalla, NY, United States
| | - D Diamond
- Department of Pediatrics, New York Medical College-Westchester Medical Center, Valhalla, NY, United States
| | - R Korumilli
- Department of Pediatrics, New York Medical College-Westchester Medical Center, Valhalla, NY, United States
| | - F Hu
- Department of Pediatrics, New York Medical College-Westchester Medical Center, Valhalla, NY, United States
| | - M T K Zia
- Department of Pediatrics, New York Medical College-Westchester Medical Center, Valhalla, NY, United States
| | - R Hevner
- Department of Neurological Surgery, University of Washington, Seattle, WA, United States
| | - P Ballabh
- Department of Pediatrics, New York Medical College-Westchester Medical Center, Valhalla, NY, United States; Department of Cell Biology and Anatomy, New York Medical College-Westchester Medical Center, Valhalla, NY, United States.
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81
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Zhu H, Sun X, Zhu L, Hu F, Shi L, Fan C, Li Z, Su Y. Different expression patterns and clinical significance of mAxl and sAxl in systemic lupus erythematosus. Lupus 2014; 23:624-34. [PMID: 24474706 DOI: 10.1177/0961203314520839] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 12/23/2013] [Indexed: 11/17/2022]
Abstract
Axl is one of the TAM family members that downregulates activated immune responses to maintain immune homeostasis. We analyzed the expression and clinical relevance of Axl on the surface of CD14+ monocytes/macrophages (mAxl, membrane Axl) and in the plasma (sAxl, soluble Axl) from patients with systemic lupus erythematosus (SLE). Compared to healthy subjects, the concentrations of sAxl were significantly elevated in plasma from SLE patients, while the mAxl expression on CD14+ monocytes/macrophages from SLE patients was significantly downregulated. A series of severe disease clinical manifestations and laboratory features such as presence of autoantibodies, 24-hour proteinuria excretion or SLEDAI ≥10 were associated with decreased mAxl expression on monocytes/macrophages but elevated sAxl levels in plasma. The plasma level of Gas6, the main ligand of Axl, was slightly decreased in SLE patients, and was negatively correlated with anti-dsDNA antibodies and C-reactive protein. SLE patients with SLEDAI ≥10 showed significantly lower Gas6 levels. Our study suggests that abnormal mAxl and sAxl expression may be involved in the imbalance of immune regulation in SLE.
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Affiliation(s)
- H Zhu
- Department of Rheumatology and Immunology, Clinical Immunology Center, Peking University People’s Hospital, Beijing, China
| | - X Sun
- Department of Rheumatology and Immunology, Clinical Immunology Center, Peking University People’s Hospital, Beijing, China
| | - L Zhu
- Department of Rheumatology and Immunology, Clinical Immunology Center, Peking University People’s Hospital, Beijing, China
| | - F Hu
- Department of Rheumatology and Immunology, Clinical Immunology Center, Peking University People’s Hospital, Beijing, China
| | - L Shi
- Department of Rheumatology and Immunology, Clinical Immunology Center, Peking University People’s Hospital, Beijing, China
| | - C Fan
- Department of Laboratory Medicine, Peking University People’s Hospital, Beijing, China
| | - Z Li
- Department of Rheumatology and Immunology, Clinical Immunology Center, Peking University People’s Hospital, Beijing, China
| | - Y Su
- Department of Rheumatology and Immunology, Clinical Immunology Center, Peking University People’s Hospital, Beijing, China
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Agarwal M, Nitta R, Dovat S, Li G, Arita H, Narita Y, Fukushima S, Tateishi K, Matsushita Y, Yoshida A, Miyakita Y, Ohno M, Collins VP, Kawahara N, Shibui S, Ichimura K, Kahn SA, Gholamin S, Junier MP, Chneiweiss H, Weissman I, Mitra S, Cheshier S, Avril T, Hamlat A, Le Reste PJ, Mosser J, Quillien V, Carrato C, Munoz-Marmol A, Serrano L, Pijuan L, Hostalot C, Villa SL, Ariza A, Etxaniz O, Balana C, Benveniste ET, Zheng Y, McFarland B, Drygin D, Bellis S, Bredel M, Lotsch D, Engelmaier C, Allerstorfer S, Grusch M, Pichler J, Weis S, Hainfellner J, Marosi C, Spiegl-Kreinecker S, Berger W, Bronisz A, Nowicki MO, Wang Y, Ansari K, Chiocca EA, Godlewski J, Brown K, Kwatra M, Brown K, Kwatra M, Bui T, Nitta R, Li G, Zhu S, Kozono D, Li J, Kushwaha D, Carter B, Chen C, Schulte J, Srikanth M, Das S, Zhang J, Lathia J, Yin L, Rich J, Olson E, Kessler J, Chenn A, Cherry A, Haas B, Lin YH, Ong SE, Stella N, Cifarelli CP, Griffin RJ, Cong D, Zhu W, Shi Y, Clark P, Kuo J, Hu S, Sun D, Bookland M, Darbinian N, Dey A, Robitaille M, Remke M, Faury D, Maier C, Malhotra A, Jabado N, Taylor M, Angers S, Kenney A, Ren X, Zhou H, Schur M, Baweja A, Singh M, Erdreich-Epstein A, Fu J, Koul D, Yao J, Saito N, Zheng S, Verhaak R, Lu Z, Yung WKA, Gomez G, Volinia S, Croce C, Brennan C, Cavenee W, Furnari F, Lopez SG, Qu D, Petritsch C, Gonzalez-Huarriz M, Aldave G, Ravi D, Rubio A, Diez-Valle R, Marigil M, Jauregi P, Vera B, Rocha AADL, Tejada-Solis S, Alonso MM, Gopal U, Isaacs J, Gruber-Olipitz M, Dabral S, Ramkissoon S, Kung A, Pak E, Chung J, Theisen M, Sun Y, Monrose V, Franchetti Y, Sun Y, Shulman D, Redjal N, Tabak B, Beroukhim R, Zhao J, Buonamici S, Ligon K, Kelleher J, Segal R, Haas B, Canton D, Diaz P, Scott J, Stella N, Hara K, Kageji T, Mizobuchi Y, Kitazato K, Okazaki T, Fujihara T, Nakajima K, Mure H, Kuwayama K, Hara T, Nagahiro S, Hill L, Botfield H, Hossain-Ibrahim K, Logan A, Cruickshank G, Liu Y, Gilbert M, Kyprianou N, Rangnekar V, Horbinski C, Hu Y, Vo C, Li Z, Ke C, Ru N, Hess KR, Linskey ME, Zhou YAH, Hu F, Vinnakota K, Wolf S, Kettenmann H, Jackson PJ, Larson JD, Beckmann DA, Moriarity BS, Largaespada DA, Jalali S, Agnihotri S, Singh S, Burrell K, Croul S, Zadeh G, Kang SH, Yu MO, Song NH, Park KJ, Chi SG, Chung YG, Kim SK, Kim JW, Kim JY, Kim JE, Choi SH, Kim TM, Lee SH, Kim SK, Park SH, Kim IH, Park CK, Jung HW, Koldobskiy M, Ahmed I, Ho G, Snowman A, Raabe E, Eberhart C, Snyder S, Agnihotri S, Gugel I, Remke M, Bornemann A, Pantazis G, Mack S, Shih D, Sabha N, Taylor M, Tatagiba M, Zadeh G, Krischek B, Schulte A, Liffers K, Kathagen A, Riethdorf S, Westphal M, Lamszus K, Lee JS, Xiao J, Patel P, Schade J, Wang J, Deneen B, Erdreich-Epstein A, Song HR, Leiss L, Gjerde C, Saed H, Rahman A, Lellahi M, Enger PO, Leung R, Gil O, Lei L, Canoll P, Sun S, Lee D, Ho ASW, Pu JKS, Zhang XQ, Lee NP, Dat PJR, Leung GKK, Loetsch D, Steiner E, Holzmann K, Spiegl-Kreinecker S, Pirker C, Hlavaty J, Petznek H, Hegedus B, Garay T, Mohr T, Sommergruber W, Grusch M, Berger W, Lukiw WJ, Jones BM, Zhao Y, Bhattacharjee S, Culicchia F, Magnus N, Garnier D, Meehan B, McGraw S, Hashemi M, Lee TH, Milsom C, Gerges N, Jabado N, Trasler J, Pawlinski R, Mackman N, Rak J, Maherally Z, Thorne A, An Q, Barbu E, Fillmore H, Pilkington G, Maherally Z, Tan SL, Tan S, An Q, Fillmore H, Pilkington G, Malhotra A, Choi S, Potts C, Ford DA, Nahle Z, Kenney AM, Matlaf L, Khan S, Zider A, Singer E, Cobbs C, Soroceanu L, McFarland BC, Hong SW, Rajbhandari R, Twitty GB, Gray GK, Yu H, Benveniste EN, Nozell SE, Minata M, Kim S, Mao P, Kaushal J, Nakano I, Mizowaki T, Sasayama T, Tanaka K, Mizukawa K, Nishihara M, Nakamizo S, Tanaka H, Kohta M, Hosoda K, Kohmura E, Moeckel S, Meyer K, Leukel P, Bogdahn U, Riehmenschneider MJ, Bosserhoff AK, Spang R, Hau P, Mukasa A, Watanabe A, Ogiwara H, Saito N, Aburatani H, Mukherjee J, Obha S, See W, Pieper R, Nakajima K, Hara K, Kageji T, Mizobuchi Y, Kitazato K, Fujihara T, Otsuka R, Kung D, Nagahiro S, Rajbhandari R, Sinha T, Meares G, Benveniste EN, Nozell S, Ott M, Litzenburger U, Rauschenbach K, Bunse L, Pusch S, Ochs K, Sahm F, Opitz C, von Deimling A, Wick W, Platten M, Peruzzi P, Chiocca EA, Godlewski J, Read R, Fenton T, Gomez G, Wykosky J, Vandenberg S, Babic I, Iwanami A, Yang H, Cavenee W, Mischel P, Furnari F, Thomas J, Ronellenfitsch MW, Thiepold AL, Harter PN, Mittelbronn M, Steinbach JP, Rybakova Y, Kalen A, Sarsour E, Goswami P, Silber J, Harinath G, Aldaz B, Fabius AWM, Turcan S, Chan TA, Huse JT, Sonabend AM, Bansal M, Guarnieri P, Lei L, Soderquist C, Leung R, Yun J, Kennedy B, Sisti J, Bruce S, Bruce R, Shakya R, Ludwig T, Rosenfeld S, Sims PA, Bruce JN, Califano A, Canoll P, Stockhausen MT, Kristoffersen K, Olsen LS, Poulsen HS, Stringer B, Day B, Barry G, Piper M, Jamieson P, Ensbey K, Bruce Z, Richards L, Boyd A, Sufit A, Burleson T, Le JP, Keating AK, Sundstrom T, Varughese JK, Harter P, Prestegarden L, Petersen K, Azuaje F, Tepper C, Ingham E, Even L, Johnson S, Skaftnesmo KO, Lund-Johansen M, Bjerkvig R, Ferrara K, Thorsen F, Takeshima H, Yamashita S, Yokogami K, Mizuguchi S, Nakamura H, Kuratsu J, Fukushima T, Morishita K, Tanaka H, Sasayama T, Tanaka K, Nakamizo S, Mizukawa K, Kohmura E, Tang Y, Vaka D, Chen S, Ponnuswami A, Cho YJ, Monje M, Tateishi K, Narita Y, Nakamura T, Cahill D, Kawahara N, Ichimura K, Tiemann K, Hedman H, Niclou SP, Timmer M, Tjiong R, Rohn G, Goldbrunner R, Timmer M, Tjiong R, Stavrinou P, Rohn G, Perrech M, Goldbrunner R, Tokita M, Mikheev S, Sellers D, Mikheev A, Kosai Y, Rostomily R, Tritschler I, Seystahl K, Schroeder JJ, Weller M, Wade A, Robinson AE, Phillips JJ, Gong Y, Ma Y, Cheng Z, Thompson R, Wang J, Fan QW, Cheng C, Gustafson W, Charron E, Zipper P, Wong R, Chen J, Lau J, Knobbe-Thosen C, Weller M, Jura N, Reifenberger G, Shokat K, Weiss W, Wu S, Fu J, Zheng S, Koul D, Yung WKA, Wykosky J, Hu J, Taylor T, Villa GR, Gomez G, Mischel PS, Gonias SL, Cavenee W, Furnari F, Yamashita D, Kondo T, Takahashi H, Inoue A, Kohno S, Harada H, Ohue S, Ohnishi T, Li P, Ng J, Yuelling L, Du F, Curran T, Yang ZJ, Zhu D, Castellino RC, Van Meir EG, Zhu W, Begum G, Wang Q, Clark P, Yang SS, Lin SH, Kahle K, Kuo J, Sun D. CELL BIOLOGY AND SIGNALING. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not174] [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: 11/14/2022] Open
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83
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Guo Q, Zhuo C, Xu Y, Huang W, Wang C, Zhang S, Huang J, Hu F, Zhu D, Yang F, Wang M. Genetic diversity of fluoroquinolone-nonsusceptible Streptococcus pneumoniae clinical isolates and the first identification of serotype 20B in China. Eur J Clin Microbiol Infect Dis 2013; 33:465-70. [PMID: 24091745 DOI: 10.1007/s10096-013-1979-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 09/04/2013] [Indexed: 11/26/2022]
Abstract
The purpose of this study was to investigate the genetic characteristics of fluoroquinolone-nonsusceptible Streptococcus pneumoniae clinical isolates in China. A total of 377 S. pneumoniae clinical isolates, including 307 pediatric strains and 70 adult strains, were collected from eight centers in China. The minimal inhibitory concentrations (MICs) of 10 antimicrobial agents were determined by agar dilution. Multilocus sequence typing (MLST), serotyping, and quinolone resistance-determining region (QRDR) variations were conducted in levofloxacin-nonsusceptible isolates by polymerase chain reaction (PCR)-based methods. Seven levofloxacin-nonsusceptible isolates were found, with an overall resistance rate of 1.9 % (7/377) and 8.6 % (6/70) in adults. Sequence analyses of parC, gyrA, and parE QRDRs in levofloxacin-resistant isolates demonstrated mutations in dual target sites at the hot spots. These seven strains represented multiple clones: two strains were serotype 19F (Taiwan(19F)-14) and MLST clonal complex (CC) 271/320, two were typed as 23F (Spain(23F)-1) and CC81, two were determined as serotype 20B and a new sequence type of ST6935, and one non-serotypeable pediatric strain belonged to a new sequence type of ST6946. Two serotype 19F strains possessed a variety of characteristic alterations of viridans group streptococci in gyrA (Ser114Gly) or parC (Ser52Gly, Asn91Asp). Fluoroquinolone-nonsusceptible S. pneumoniae isolates showed a substantial degree of genetic diversity and belonged to pre-existing epidemic clones together with native clones. S. pneumoniae strains with serotype 20B was recovered for the first time to be associated with levofloxacin resistance in China.
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Affiliation(s)
- Q Guo
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, 200040, China
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84
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Abresch R, McDonald C, Henricson E, Gustavo N, Hu F, Duong T, Joyce N, Mah J. P.11.12 Pulmonary function characteristics of boys with Duchenne muscular dystrophy: Data from the CINRG longitudinal study project. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.573] [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: 10/26/2022]
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85
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Wang J, Huang H, Wang C, Liu X, Hu F, Liu M. MicroRNA-375 sensitizes tumour necrosis factor-alpha (TNF-α)-induced apoptosis in head and neck squamous cell carcinoma in vitro. Int J Oral Maxillofac Surg 2013; 42:949-55. [PMID: 23726271 DOI: 10.1016/j.ijom.2013.04.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 04/19/2013] [Accepted: 04/23/2013] [Indexed: 11/28/2022]
Abstract
We investigated the effect of microRNA-375 (miR-375) on tumour necrosis factor-alpha (TNF-α)-induced cell death in head and neck squamous cell carcinoma, and further explored the potential molecular mechanism underlying this phenomenon. Cal27 cells were transfected with miR-375 mimic and subsequently treated with or without TNF-α (10 ng/ml). An additional group of cells were treated with TNF-α alone. The resulting morphological changes were observed, and the percentage of sub-G1 cells was measured. The protein expression and cleavage of caspase 3, caspase 8, and poly(ADP ribose) polymerase (PARP) were determined through Western blotting. The results showed a significant increase in cell death in the combination group, but not in the groups treated with miR-375 mimic, TNF-α alone, or control. The data obtained from sub-G1 cells supported the notion that miR-375 increases the accumulation of sub-G1. In the combination group, the degradation of caspase 3, caspase 8, and PARP was observed and the cleavage of these enzymes was detected. The pan-caspase inhibitor, Z-VAD, inhibited the apoptosis of Cal27 cells treated with a combination of miR-375 mimic and TNF-α. In addition, the apoptosis inhibitory proteins, cFLIP-L and cIAP1, were down-regulated in a time-dependent manner. Taken together, these data suggest that miR-375 sensitizes TNF-α-induced apoptosis, and the reduction in the expression of the apoptosis inhibitory proteins cFLIP-L and cIAP2 plays an important role in this sensitization.
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Affiliation(s)
- J Wang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
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86
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Hu F, Bu YZ, Liang R, Duan RM, Wang S, Han RM, Wang P, Ai XC, Zhang JP, Skibsted LH. Quercetin and daidzein β-apo-14'-carotenoic acid esters as membrane antioxidants. Free Radic Res 2013; 47:413-21. [PMID: 23480575 DOI: 10.3109/10715762.2013.784396] [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: 11/13/2022]
Abstract
Esterification by β-apo-14'-carotenoic acid was found to have opposite effects on antioxidant activity of quercetin (at B4', B3' hydroxyl) as of daidzein (at A7 hydroxyl) in phosphatidylcholine liposomes. The daidzein ester had increased activity, while quercetin had a significant decreased activity. Quantum mechanical calculations using density function theory (DFT) indicate a modest decrease in bond dissociation enthalpy, BDE, for (weakest) hydrogen-oxygen phenolic bond in daidzein from 368.4 kJ · mol(- 1) to 367.7 kJ · mol(- 1) compared to a significant increase in quercetin from 329.5 kJ · mol(- 1) to 356.6 kJ · mol(- 1) upon derivatization. These opposite changes in tendency for hydrogen atom transfer from phenolic groups to lipid radicals combined with an increase in A-to-B dihedral angle from 0.0° to 36.4° and in dipole moment from 0.40 D to 6.01 D for quercetin upon derivatization, while less significant for daidzein (36.4°-36.7° and 3.26 D-7.87 D, respectively), together provide a rationale for the opposite effect of esterification on antioxidation.
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Affiliation(s)
- F Hu
- Department of Chemistry, Renmin University of China, Beijing, PR China
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87
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Felger JC, Cole SW, Pace TWW, Hu F, Woolwine BJ, Doho GH, Raison CL, Miller AH. Molecular signatures of peripheral blood mononuclear cells during chronic interferon-α treatment: relationship with depression and fatigue. Psychol Med 2012; 42:1591-1603. [PMID: 22152193 PMCID: PMC3433045 DOI: 10.1017/s0033291711002868] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Interferon-alpha (IFN-α) treatment for infectious disease and cancer causes high rates of depression and fatigue, and has been used to investigate the impact of inflammatory cytokines on brain and behavior. However, little is known about the transcriptional impact of chronic IFN-α on immune cells in vivo and its relationship to IFN-α-induced behavioral changes. METHOD Genome-wide transcriptional profiling was performed on peripheral blood mononuclear cells (PBMCs) from 21 patients with chronic hepatitis C virus (HCV) either awaiting IFN-α therapy (n=10) or at 12 weeks of IFN-α treatment (n=11). RESULTS Significance analysis of microarray data identified 252 up-regulated and 116 down-regulated gene transcripts. Of the up-regulated genes, 2'-5'-oligoadenylate synthetase 2 (OAS2), a gene linked to chronic fatigue syndrome (CFS), was the only gene that was differentially expressed in patients with IFN-α-induced depression/fatigue, and correlated with depression and fatigue scores at 12 weeks (r=0.80, p=0.003 and r=0.70, p=0.017 respectively). Promoter-based bioinformatic analyses linked IFN-α-related transcriptional alterations to transcription factors involved in myeloid differentiation, IFN-α signaling, activator protein-1 (AP1) and cAMP responsive element binding protein/activation transcription factor (CREB/ATF) pathways, which were derived primarily from monocytes and plasmacytoid dendritic cells. IFN-α-treated patients with high depression/fatigue scores demonstrated up-regulation of genes bearing promoter motifs for transcription factors involved in myeloid differentiation, IFN-α and AP1 signaling, and reduced prevalence of motifs for CREB/ATF, which has been implicated in major depression. CONCLUSIONS Depression and fatigue during chronic IFN-α administration were associated with alterations in the expression (OAS2) and transcriptional control (CREB/ATF) of genes linked to behavioral disorders including CFS and major depression, further supporting an immune contribution to these diseases.
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MESH Headings
- 2',5'-Oligoadenylate Synthetase/drug effects
- 2',5'-Oligoadenylate Synthetase/genetics
- Antiviral Agents/adverse effects
- Antiviral Agents/pharmacology
- Computational Biology/methods
- Depression/chemically induced
- Depression/genetics
- Drug Therapy, Combination
- Fatigue/chemically induced
- Fatigue/genetics
- Female
- Gene Expression Profiling/methods
- Gene Expression Profiling/statistics & numerical data
- Gene Expression Regulation/drug effects
- Hepatitis C, Chronic/drug therapy
- Humans
- Interferon-alpha/adverse effects
- Interferon-alpha/pharmacology
- Leukocytes, Mononuclear/chemistry
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/immunology
- Longitudinal Studies
- Male
- Microarray Analysis
- Middle Aged
- Promoter Regions, Genetic/genetics
- RNA, Messenger/drug effects
- RNA, Messenger/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Ribavirin/therapeutic use
- Severity of Illness Index
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Affiliation(s)
- J C Felger
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA 30322, USA.
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88
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Sun L, Wen JH, Sun HL, Shu XC, Hu F, Yin DC, Yang Q, Zeng YJ, Sun Y, Liu L. Perindopril attenuates renal tubulointerstitium injury by inhibiting scavenger receptor A over-expression in diabetic rats. J Endocrinol Invest 2012; 35:511-5. [PMID: 21765240 DOI: 10.3275/7867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 11/17/2022]
Abstract
Scavenger receptor A (SR-A) is the main receptor through which oxidized LDL (oxLDL) and advanced glycation end products get into the cells. The aim of the present study was to investigate the effect of an ACE inhibitor, perindopril, on the expression of SR-A in renal tubulointerstitium of diabetic rats. Diabetes was induced in male Sprague-Dawley rats by injection with streptozotocin. The rats were then randomly divided into 3 groups: normal control group; untreated diabetes mellitus group; and diabetes mellitus group treated with the ACE inhibitor, perindopril. After a 24-week treatment, tubulointerstitial injury index was assessed on Masson's trichrome sections. The number of macrophages and the expression of SR-A protein in renal tubulointerstitium were detected by immunohistochemistry and the expression of SR-A mRNA was detected by RT-PCR. The tubulointerstitial injury index, the number of macrophages and the expression of SR-A mRNA were significantly higher in the diabetes group than the normal control group. Perindopril treatment not only attenuated the tubulointerstitial injury and the macrophages infiltration but also reduced the overexpression of SR-A mRNA in diabetic rats. The expression of SR-A protein was most obvious in renal tubulointerstitium in diabetic rats, which was attenuated by perindopril treatment. The findings of the present study indicate that perindopril may have renoprotective effects of diabetic nephropathy via inhibiting the expression of SR-A in renal tubulointerstitium.
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MESH Headings
- Angiotensin-Converting Enzyme Inhibitors/therapeutic use
- Animals
- Blotting, Western
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Disease Models, Animal
- Immunoenzyme Techniques
- Kidney Tubules/drug effects
- Kidney Tubules/injuries
- Kidney Tubules/metabolism
- Macrophages/cytology
- Macrophages/drug effects
- Macrophages/metabolism
- Male
- Perindopril/therapeutic use
- RNA, Messenger/genetics
- Rats
- Rats, Sprague-Dawley
- Real-Time Polymerase Chain Reaction
- Reverse Transcriptase Polymerase Chain Reaction
- Scavenger Receptors, Class A/antagonists & inhibitors
- Scavenger Receptors, Class A/genetics
- Scavenger Receptors, Class A/metabolism
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Affiliation(s)
- L Sun
- Department of Endocrinology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 51900, Guangdong Province, China.
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89
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Huang SL, Yu RT, Gong J, Feng Y, Dai YL, Hu F, Hu YH, Tao YD, Leng Y. Arctigenin, a natural compound, activates AMP-activated protein kinase via inhibition of mitochondria complex I and ameliorates metabolic disorders in ob/ob mice. Diabetologia 2012; 55:1469-81. [PMID: 22095235 DOI: 10.1007/s00125-011-2366-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Accepted: 10/06/2011] [Indexed: 12/24/2022]
Abstract
AIMS/HYPOTHESIS Arctigenin is a natural compound that had never been previously demonstrated to have a glucose-lowering effect. Here it was found to activate AMP-activated protein kinase (AMPK), and the mechanism by which this occurred, as well as the effects on glucose and lipid metabolism were investigated. METHODS 2-Deoxyglucose uptake and AMPK phosphorylation were examined in L6 myotubes and isolated skeletal muscle. Gluconeogenesis and lipid synthesis were evaluated in rat primary hepatocytes. The acute and chronic effects of arctigenin on metabolic abnormalities were observed in C57BL/6J and ob/ob mice. Changes in mitochondrial membrane potential were measured using the J-aggregate-forming dye, JC-1. Analysis of respiration of L6 myotubes or isolated mitochondria was conducted in a channel oxygen system. RESULTS Arctigenin increased AMPK phosphorylation and stimulated glucose uptake in L6 myotubes and isolated skeletal muscles. In primary hepatocytes, it decreased gluconeogenesis and lipid synthesis. The enhancement of glucose uptake and suppression of hepatic gluconeogenesis and lipid synthesis by arctigenin were prevented by blockade of AMPK activation. The respiration of L6 myotubes or isolated mitochondria was inhibited by arctigenin with a specific effect on respiratory complex I. A single oral dose of arctigenin reduced gluconeogenesis in C57BL/6J mice. Chronic oral administration of arctigenin lowered blood glucose and improved lipid metabolism in ob/ob mice. CONCLUSIONS/INTERPRETATION This study demonstrates a new role for arctigenin as a potent indirect activator of AMPK via inhibition of respiratory complex I, with beneficial effects on metabolic disorders in ob/ob mice. This highlights the potential value of arctigenin as a possible treatment of type 2 diabetes.
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Affiliation(s)
- S-L Huang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zu Chong Zhi Road 555, Shanghai 201203, People's Republic of China
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90
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Hu F, Liang W, Ren Z, Wang G, Ding G. Surfactant protein D inhibits lipopolysaccharide-induced monocyte chemoattractant protein-1 expression in human renal tubular epithelial cells: implication for tubulointerstitial fibrosis. Clin Exp Immunol 2012; 167:514-22. [PMID: 22288595 DOI: 10.1111/j.1365-2249.2011.04521.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Surfactant protein D (SP-D), a member of the C-type lectin (collectin) protein family, plays a critical role in innate host defence against various microbial pathogens and in the modulation of inflammatory responses in the lung. However, little is known about its expression and biological function in the kidney. In this work, we studied SP-D expression in human kidney and cultured human renal proximal tubular epithelial cells (HK-2), and examined the effect of SP-D on proinflammatory cytokine production after lipopolysaccharide (LPS) stimulus. We observed the expression of both SP-D mRNA and protein in human kidney and in-vitro HK-2 cells by immunohistochemistry, Western blot analysis, reverse transcription-polymerase chain reaction (RT-PCR) and real-time PCR. To explore the potential role of SP-D in the pathogenesis of tubulointerstitial fibrosis in kidney infection, we examined the production of monocyte chemoattractant protein-1 (MCP-1) in HK-2 cells after LPS treatment. Results showed that the level of MCP-1 in the conditioned medium increased significantly when HK-2 cells were cultured with LPS (>0·1 µg/ml) for 8 h. Of interest, LPS treatment inhibited SP-D expression in HK-2 cells. Furthermore, over-expression of SP-D reduced significantly the LPS-induced expression of MCP-1 in transfected cells. These findings suggest that SP-D in the kidney functions as an anti-inflammatory factor in renal tubular epithelial cells and may modulate tubulointerstitial fibrosis in kidney.
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Affiliation(s)
- F Hu
- Division of Nephrology, Department of Medicine, Renmin Hospital of Wuhan University, Wuhan, China
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91
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Escolar DM, Zimmerman A, Bertorini T, Clemens PR, Connolly AM, Mesa L, Gorni K, Kornberg A, Kolski H, Kuntz N, Nevo Y, Tesi-Rocha C, Nagaraju K, Rayavarapu S, Hache LP, Mayhew JE, Florence J, Hu F, Arrieta A, Henricson E, Leshner RT, Mah JK. Pentoxifylline as a rescue treatment for DMD: a randomized double-blind clinical trial. Neurology 2012; 78:904-13. [PMID: 22402864 DOI: 10.1212/wnl.0b013e31824c46be] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To determine whether pentoxifylline (PTX) slows the decline of muscle strength and function in ambulatory boys with Duchenne muscular dystrophy (DMD). METHODS This was a multicenter, randomized, double-blinded, controlled trial comparing 12 months of daily treatment with PTX or placebo in corticosteroid-treated boys with DMD using a slow-release PTX formulation (~20 mg/kg/day). The primary outcome was the change in mean total quantitative muscle testing (QMT) score. Secondary outcomes included changes in QMT subscales, manual muscle strength, pulmonary function, and timed function tests. Outcomes were compared using Student t tests and a linear mixed-effects model. Adverse events (AEs) were compared using the Fisher exact test. RESULTS A total of 64 boys with DMD with a mean age of 9.9 ± 2.9 years were randomly assigned to PTX or placebo in 11 participating Cooperative International Neuromuscular Research Group centers. There was no significant difference between PTX and the placebo group in total QMT scores (p = 0.14) or in most of the secondary outcomes after a 12-month treatment. The use of PTX was associated with mild to moderate gastrointestinal or hematologic AEs. CONCLUSION The addition of PTX to corticosteroid-treated boys with DMD at a moderate to late ambulatory stage of disease did not improve or halt the deterioration of muscle strength and function over a 12-month study period. CLASSIFICATION OF EVIDENCE This study provides Class I evidence that treatment with PTX does not prevent deterioration in muscle function or strength in corticosteroid-treated boys with DMD.
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Affiliation(s)
- D M Escolar
- Children’s National Medical Center, Washington, DC, USA.
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Escolar DM, Hache LP, Clemens PR, Cnaan A, McDonald CM, Viswanathan V, Kornberg AJ, Bertorini TE, Nevo Y, Lotze T, Pestronk A, Ryan MM, Monasterio E, Day JW, Zimmerman A, Arrieta A, Henricson E, Mayhew J, Florence J, Hu F, Connolly AM. Randomized, blinded trial of weekend vs daily prednisone in Duchenne muscular dystrophy. Neurology 2011; 77:444-52. [PMID: 21753160 DOI: 10.1212/wnl.0b013e318227b164] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To perform a double-blind, randomized study comparing efficacy and safety of daily and weekend prednisone in boys with Duchenne muscular dystrophy (DMD). METHODS A total of 64 boys with DMD who were between 4 and 10 years of age were randomized at 1 of 12 centers of the Cooperative International Neuromuscular Research Group. Efficacy and safety of 2 prednisone schedules (daily 0.75 mg/kg/day and weekend 10 mg/kg/wk) were evaluated over 12 months. RESULTS Equivalence was met for weekend and daily dosing of prednisone for the primary outcomes of quantitative muscle testing (QMT) arm score and QMT leg score. Secondary strength scores for QMT elbow flexors also showed equivalence between the 2 treatment groups. Overall side effect profiles of height and weight, bone density, cataract formation, blood pressure, and behavior, analyzed at 12 months, did not differ between weekend and daily dosing of prednisone. CONCLUSIONS Weekend dosing of prednisone is equally beneficial to the standard daily dosing of prednisone. Analysis of side effect profiles demonstrated overall tolerability of both dosing regimens. CLASSIFICATION OF EVIDENCE This study provides Class I evidence that weekend prednisone dosing is as safe and effective as daily prednisone in preserving muscle strength and preventing body mass index increases in boys with DMD over a 12-month period.
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Affiliation(s)
- D M Escolar
- Children's National Medical Center, Washington, DC, USA.
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He X, Lu X, Hu J, Xi J, Zhou D, Shang H, Liu L, Zhou H, Yan B, Yu L, Hu F, Liu Z, He L, Yao X, Xu Y. H63D polymorphism in the hemochromatosis gene is associated with sporadic amyotrophic lateral sclerosis in China. Eur J Neurol 2011; 18:359-361. [PMID: 20642794 DOI: 10.1111/j.1468-1331.2010.03158.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND PURPOSE The H63D polymorphism in the hemochromatosis (HFE) gene has been reported as a risk factor for amyotrophic lateral sclerosis (ALS) in Europe and America, but no data have been reported for Asia. Here, we investigated the possible association between H63D and sporadic ALS (sALS) in a Chinese Han population. METHODS A total of 195 individuals with sALS from three centers in China and 405 unrelated healthy controls were recruited. All subjects were genotyped by restriction fragment length polymorphism (RFLP) analysis. RESULTS Sporadic ALS was significantly related to the H63D polymorphism in heterozygous carriers (odds ratio 3.10, 95%CI: 1.49-6.47, P=0.002). CONCLUSIONS The HFE H63D polymorphism may contribute to the development of sALS in Chinese.
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Affiliation(s)
- X He
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - X Lu
- Department of Neurology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province
| | - J Hu
- Department of Neurology, Third Hospital of Hebei Medical University, Sijiazhuang, Hebei Province, China
| | - J Xi
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - D Zhou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - H Shang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - L Liu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - H Zhou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - B Yan
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - L Yu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - F Hu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - Z Liu
- Department of Neurology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province
| | - L He
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
| | - X Yao
- Department of Neurology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province
| | - Y Xu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province
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Abstract
Increased disease resistance through improved general immune capacity would be beneficial for the welfare and productivity of farm animals. Cytokines are essential diagnostic parameters in veterinary practice. To identify quantitative trait loci (QTL) for cytokine levels in serum in the pig, Interferon-gamma (IFN-γ) and Interleukin 10 (IL-10) levels and the ratio of IFN-γ to IL-10 were measured in a composite pig population, before and after challenge with modified live CSF (classical swine fever) vaccine. Through interval mapping using the variance component approach and the permutation test, 11 QTL (five for IFN-γ, two for IL-10 and four for the ratio of IFN-γ to IL-10) with significance levels of P < 0.10 were identified, of which five were significant at the P < 0.05 level. The most significant QTL (P < 0.01) was found on chromosome 16, with effect on the ratio of IFN-γ to IL-10. Within these QTL regions, a number of known genes were revealed and their potential relationships to the studied traits were discussed. Some of these genes may serve as candidate genes for these traits in swine.
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Affiliation(s)
- X Lu
- Key Laboratory Animal Genetics and Breeding of the Ministry of Agricultural, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
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Hsu C, Shen Y, Cheng C, Cheng A, Hu F, Yeh K. Geographic difference in safety and efficacy of systemic chemotherapy for advanced gastric or gastroesophageal carcinoma: A meta-regression approach. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
109 Background: The standard of chemotherapy regimens for patients with advanced or metastatic gastric cancer vary and the clinical outcome were heterogeneous in Asian vs. non-Asian countries. Methods: Treatment group-based meta-analysis and meta-regression were performed to analyze results of randomized trials published since 2005 for advanced or metastatic gastric cancer patients who received systemic chemotherapy as first-line treatment. Data were extracted and synthesized according to the Cochrane guidelines. Results: Among the 24 trials (totally 6,502 patients) eligible for meta-analysis, Asian trials reported lower percentage of gastroesophageal junctional carcinoma, higher percentage of diffuse-type histology, and more frequent use of second-line chemotherapy. Meta- regression analyses indicate that, after controlling other patient or treatment factors, Asian trials are associated with 22.7% (95% CI: 19.5-26.0%, p<0.0001) lower incidence of grade 3-4 neutropenia and 3.5% (95% CI: 2.1-4.9%, p<0.0001) lower incidence of grade 3-4 diarrhea, which were the most commonly reported toxicity. The use of high-dose infusional 5-fluorouracil, compared with other fuoropyrimidine regimens, reported 16.6% lower incidence of neutropenia (95% CI: 13.3-19.9%, p<0.0001). Higher percentage of patients with gastroesophageal junction carcinoma and patients with 2 or more organs involved predicted poor progression-free survival. The use of second-line chemotherapy predicts better 1-year overall survival, which will increase by 9% (95% CI: 8-10%) for every 10 percent increase in patients who received second-line chemotherapy. Conclusions: Geographic region (Asian vs. non-Asian) plays an important role in the heterogeneity of gastric cancer clinical trials and is an independent predictor of safety in systemic therapy for gastric cancer. No significant financial relationships to disclose.
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Affiliation(s)
- C. Hsu
- National Taiwan University Hospital, Taipei, Taiwan
| | - Y. Shen
- National Taiwan University Hospital, Taipei, Taiwan
| | - C. Cheng
- National Taiwan University Hospital, Taipei, Taiwan
| | - A. Cheng
- National Taiwan University Hospital, Taipei, Taiwan
| | - F. Hu
- National Taiwan University Hospital, Taipei, Taiwan
| | - K. Yeh
- National Taiwan University Hospital, Taipei, Taiwan
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Liu X, Zhou J, Hu F, Yuan W, Huang Z. Hydrothermal Synthesis and Structure of Two 1-D Organic Hybrid Metal Sulfates. Z Naturforsch B 2011. [DOI: 10.5560/znb.2011.66b1127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chen X, Yu X, Cai Y, Zheng H, Yu D, Liu G, Zhou Q, Hu S, Hu F. Next-generation small RNA sequencing for microRNAs profiling in the honey bee Apis mellifera. Insect Mol Biol 2010; 19:799-805. [PMID: 20807255 DOI: 10.1111/j.1365-2583.2010.01039.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
MicroRNAs (miRNAs) are key regulators in various physiological and pathological processes via post-transcriptional regulation of gene expression. The honey bee (Apis mellifera) is a key model for highly social species, and its complex social behaviour can be interpreted theoretically as changes in gene regulation, in which miRNAs are thought to be involved. We used the SOLiD sequencing system to identify the repertoire of miRNAs in the honey bee by sequencing a mixed small RNA library from different developmental stages. We obtained a total of 36,796,459 raw sequences; of which 5,491,100 short sequences were fragments of mRNA and other noncoding RNAs (ncRNA), and 1,759,346 reads mapped to the known miRNAs. We predicted 267 novel honey bee miRNAs representing 380,182 short reads, including eight miRNAs of other insects in 14,107,583 genome-mapped sequences. We verified 50 of them using stem-loop reverse-transcription PCR (RT-PCR), in which 35 yielded PCR products. Cross-species analyses showed 81 novel miRNAs with homologues in other insects, suggesting that they were authentic miRNAs and have similar functions. The results of this study provide a basis for studies of the miRNA-modulating networks in development and some intriguing phenomena such as caste differentiation in A. mellifera.
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Affiliation(s)
- X Chen
- College of Animal Sciences, Zhejiang University, Hangzhou, China
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Wei W, Wei Z, Wang Y, Baker AJM, Zhao H, Li H, Hu F. Simultaneous Determination of Organic Acids and Nitrate in Xylem Saps of the Hyperaccumulator Alyssum Murale by RP-HPLC after Solid-Phase Extraction with Nanosized Hydroxyapatite. J Chromatogr Sci 2010; 48:840-7. [DOI: 10.1093/chromsci/48.10.840] [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: 11/14/2022]
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