151
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Li J, Wang L, Wang S, Zhu H, Ye P, Xie A, Shen B, Liu C, Guo C, Fu Q, Zhang K, Xia J. The Treg/Th17 imbalance in patients with idiopathic dilated cardiomyopathy. Scand J Immunol 2010; 71:298-303. [PMID: 20384874 DOI: 10.1111/j.1365-3083.2010.02374.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
To assess whether Treg/Th17 balance was broken in patients with idiopathic dilated cardiomyopathy (DCM). We studied 25 patients who were diagnosed as idiopathic DCM (18 men and seven women, mean age 35.6 +/- 5.2) and 25 normal persons (18 men and seven women, mean age 33.8 +/- 4.9). Then, we detected Treg/Th17 functions on different levels including cell frequencies, related cytokine secretion and key transcription factors in patients with idiopathic DCM and controls. The results demonstrated that patients with idiopathic DCM revealed significant increase in peripheral Th17 number, Th17-related cytokines (IL-17, IL-6, IL-23) and transcription factor (RORgammat) levels and obvious decrease in Treg number, Treg-related cytokines (TGF-beta1 and IL-10) and transcription factor (Foxp3) levels when compared to normal persons. Results indicated that Treg/Th17 functional imbalance existed in patients with idiopathic DCM, suggesting a potential role for Treg/Th17 imbalance in the development of idiopathic DCM.
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Affiliation(s)
- J Li
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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152
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153
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Hong L, Xu X, Chen L, Fu Q. Laparoscopic sacral colpopexy for uterine prolapse with prolene mesh. CLIN EXP OBSTET GYN 2010; 37:295-298. [PMID: 21355461] [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: 05/30/2023]
Abstract
OBJECTIVE To analyze the clinical effects of laparoscopic sacral colpopexy using prolene mesh for patients with pelvic organ prolapse. METHODS Laparoscopic placement of prolene mesh in the rectovaginal septum and veslcovaginal septum of 42 women with uterine prolapse with bladder and rectum prolapse. One mesh was fixed to the round ligaments and another to the periosteum of the sacral vertebrae. Operation time, blood loss, complication rate and follow-up surgery results were recorded monthly and analyzed according to the POP-Q system. The uterus was preserved in all cases. RESULTS The mean operating time was 92 +/- 12 min and the mean blood loss during surgery was 98 +/- 11 ml. Postoperatively, both prolapse and symptoms were highly significantly improved (p < 0.001) according to the pelvic organ prolapse quantification (POP-Q) system. CONCLUSIONS Laparoscopic sacral colpopexy for uterine prolapse using prolene mesh is a minimally invasive and effective new technique that offers a chance for patients who desire to preserve their uterus.
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Affiliation(s)
- L Hong
- Department of Gynaecology and Obstetrics, Renmin Hospital of Wuhan University, Hubei, Wuhan, China
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154
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Tsen KT, Tsen SWD, Fu Q, Lindsay SM, Kibler K, Jacobs B, Wu TC, Karanam B, Jagu S, Roden RBS, Hung CF, Sankey OF, Ramakrishna B, Kiang JG. Photonic approach to the selective inactivation of viruses with a near-infrared subpicosecond fiber laser. J Biomed Opt 2009; 14:064042. [PMID: 20059280 DOI: 10.1117/1.3275477] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We report a photonic approach for selective inactivation of viruses with a near-infrared subpicosecond laser. We demonstrate that this method can selectively inactivate viral particles ranging from nonpathogenic viruses such as the M13 bacteriophage and the tobacco mosaic virus to pathogenic viruses such as the human papillomavirus and the human immunodeficiency virus (HIV). At the same time, sensitive materials such as human Jurkat T cells, human red blood cells, and mouse dendritic cells remain unharmed. The laser technology targets the global mechanical properties of the viral protein shell, making it relatively insensitive to the local genetic mutation in the target viruses. As a result, the approach can inactivate both the wild and mutated strains of viruses. This intriguing advantage is particularly important in the treatment of diseases involving rapidly mutating viral species such as HIV. Our photonic approach could be used for the disinfection of viral pathogens in blood products and for the treatment of blood-borne viral diseases in the clinic.
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Affiliation(s)
- Kong-Thon Tsen
- Arizona State University, Department of Physics, P.O. Box 871504, Tempe, Arizona 85287, USA.
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155
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Fu Q, Song XF, Liao GL, Deng CL, Cui L. POD-01.07: Study with Myoblasts Differentiated from Adipose-derived Stem Cells for Urinary Stress Incontinence. Urology 2009. [DOI: 10.1016/j.urology.2009.07.1212] [Citation(s) in RCA: 2] [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: 11/25/2022]
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156
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Sa Y, Xu Y, Fu Q, Zhang J, Qiao Y, Wu D, Zhang X, Jin S. MP-01.02: A Comparative Study of Buccal Mucosa Graft and Penile Pedicle Flap for Reconstruction of Anterior Urethral Strictures. Urology 2009. [DOI: 10.1016/j.urology.2009.07.1077] [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: 11/30/2022]
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157
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Li C, Xu Y, Song L, Fu Q, Cui L, Yin S. MP-10.06: Urethral Reconstruction Using Oral Keratinocyte-Seeded Bladder Acellular Matrix Grafts (BAMGs). Urology 2009. [DOI: 10.1016/j.urology.2009.07.924] [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: 11/29/2022]
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158
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Yu T, Wang X, Ding Q, Fu Q, Dai J, Lu Y, Xi X, Wang H. Using a minigene approach to characterize a novel splice site mutation in human F7 gene causing inherited factor VII deficiency in a Chinese pedigree. Haemophilia 2009; 15:1262-6. [PMID: 19601987 DOI: 10.1111/j.1365-2516.2009.02064.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Factor VII deficiency which transmitted as an autosomal recessive disorder is a rare haemorrhagic condition. The aim of this study was to identify the molecular genetic defect and determine its functional consequences in a Chinese pedigree with FVII deficiency. The proband was diagnosed as inherited coagulation FVII deficiency by reduced plasma levels of FVII activity (4.4%) and antigen (38.5%). All nine exons and their flanking sequence of F7 gene were amplified by polymerase chain reaction (PCR) for the proband and the PCR products were directly sequenced. The compound heterozygous mutations of F7 (NM_000131.3) c.572-1G>A and F7 (NM_000131.3) c.1165T>G; p.Cys389Gly were identified in the proband's F7 gene. To investigate the splicing patterns associated with F7 c.572-1G>A, ectopic transcripts in leucocytes of the proband were analyzed. F7 minigenes, spanning from intron 4 to intron 7 and carrying either an A or a G at position -1 of intron 5, were constructed and transiently transfected into human embryonic kidney (HEK) 293T cells, followed by RT-PCR analysis. The aberrant transcripts from the F7 c.572-1G>A mutant allele were not detected by ectopic transcription study. Sequencing of the RT-PCR products from the mutant transfectant demonstrated the production of an erroneously spliced mRNA with exon 6 skipping, whereas a normal splicing occurred in the wide type transfectant. The aberrant mRNA produced from the F7 c.572-1G>A mutant allele is responsible for the factor VII deficiency in this pedigree.
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Affiliation(s)
- T Yu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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159
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Hummelshøj JS, Landis DD, Voss J, Jiang T, Tekin A, Bork N, Dułak M, Mortensen JJ, Adamska L, Andersin J, Baran JD, Barmparis GD, Bell F, Bezanilla AL, Bjork J, Björketun ME, Bleken F, Buchter F, Bürkle M, Burton PD, Buus BB, Calborean A, Calle-Vallejo F, Casolo S, Chandler BD, Chi DH, Czekaj I, Datta S, Datye A, DeLaRiva A, Despoja V, Dobrin S, Engelund M, Ferrighi L, Frondelius P, Fu Q, Fuentes A, Fürst J, García-Fuente A, Gavnholt J, Goeke R, Gudmundsdottir S, Hammond KD, Hansen HA, Hibbitts D, Hobi E, Howalt JG, Hruby SL, Huth A, Isaeva L, Jelic J, Jensen IJT, Kacprzak KA, Kelkkanen A, Kelsey D, Kesanakurthi DS, Kleis J, Klüpfel PJ, Konstantinov I, Korytar R, Koskinen P, Krishna C, Kunkes E, Larsen AH, Lastra JMG, Lin H, Lopez-Acevedo O, Mantega M, Martínez JI, Mesa IN, Mowbray DJ, Mýrdal JSG, Natanzon Y, Nistor A, Olsen T, Park H, Pedroza LS, Petzold V, Plaisance C, Rasmussen JA, Ren H, Rizzi M, Ronco AS, Rostgaard C, Saadi S, Salguero LA, Santos EJG, Schoenhalz AL, Shen J, Smedemand M, Stausholm-Møller OJ, Stibius M, Strange M, Su HB, Temel B, Toftelund A, Tripkovic V, Vanin M, Viswanathan V, Vojvodic A, Wang S, Wellendorff J, Thygesen KS, Rossmeisl J, Bligaard T, Jacobsen KW, Nørskov JK, Vegge T. Density functional theory based screening of ternary alkali-transition metal borohydrides: A computational material design project. J Chem Phys 2009; 131:014101. [DOI: 10.1063/1.3148892] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [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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160
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Gerdts C, Li L, Fu Q, Nollert P, Ismagilov R, Stewart L. The microcapillary protein crystallization system. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308080823] [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: 11/11/2022] Open
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161
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Cao J, Li S, Shi Z, Yue Y, Sun J, Chen J, Fu Q, Hughes CE, Caterson B. Articular cartilage metabolism in patients with Kashin-Beck Disease: an endemic osteoarthropathy in China. Osteoarthritis Cartilage 2008; 16:680-8. [PMID: 17945513 DOI: 10.1016/j.joca.2007.09.002] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2006] [Accepted: 09/02/2007] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The objective of this study was to investigate CD44 and proteoglycan metabolism in patients suffering from Kashin-Beck Disease (KBD), an endemic osteoarthropathy that affects 2.5 million of 30 million people living in the KBD regions of China. METHODS Immunohistochemical analyses of cluster of differentiation-44 (CD44), BC-13 and 3-B-3(-) expression were performed in cartilage sections harvested from KBD and normal patients. In addition, the serum levels of soluble CD44 (sCD44), interleukin-1beta (IL-1beta), tumor necrosis factor-alpha (TNF-alpha) and matrix metalloproteinase-1 were determined using a sandwich enzyme linked immunosorbent assay. RESULTS Hematoxylin & eosin and toluidine blue staining indicated that there was cell necrosis and proteoglycan loss in cartilage from both KBD children and adult cartilage. Strong immunohistochemical staining for CD44, BC-13 and 3-B-3(-) occurred in the majority of adult KBD patients and most KBD children. Furthermore, statistically significant elevated levels of sCD44, IL-1beta and TNF-alpha were found in the sera of both adult and child KBD patients when compared to the levels of normal adult and child controls. Interestingly, IL-1beta and TNF-alpha serum levels were all high in normal children from KBD regions when compared to normal children from non-KBD regions suggesting that unidentified factors (e.g., a genetic predisposition) may protect some people from KBD pathology. CONCLUSION Our results demonstrate that altered CD44, IL-1beta and TNF-alpha metabolism occurs in the pathogenesis of KBD and there is an increased aggrecanase-generated proteoglycan loss from KBD adult and child cartilage. These primary metabolic changes are likely to be significant contributing factor causing pathological joint formation and instability that leads to secondary osteoarthritis in KBD patients.
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Affiliation(s)
- J Cao
- Institute of Endemic Diseases, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, PR China.
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162
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Weber G, Fu Q, Wu H. Energy Efficiency of an Integrated Process Based on Gasification for Hydrogen Production from Biomass. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/apj.5500140104] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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163
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Hu XY, Xu YM, Qiao Y, Wu DL, Sa YL, Fu Q, Yu JJ, Zhang XR, Zhang J, Gu BJ, Chen R, Xie H. Retraction: Reduced semen quality in chronic prostatitis patients that induce the release of apoptotic protein Omi/HtrA2 from spermatozoa. Prostate Cancer Prostatic Dis 2008; 10:398. [PMID: 18049464 DOI: 10.1038/sj.pcan.4501016] [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: 11/09/2022]
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164
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Zheng Z, He PJ, Fu Q, Shao LM, Lee DJ. Partition of six phthalic acid esters in soluble and solid residual fractions of wastewater sludges. Environ Technol 2008; 29:343-350. [PMID: 18610796 DOI: 10.1080/09593330802102298] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Distributions of six priority controlled Phthalic acid esters (PAEs), including di-methyl phthalate (DMP), di-ethyl phthalate (DEP), di-butyl phthalate (DBP), benzyl butyl phthalate (BBP), di-(2-ethylhexyl) phthalate (DEHP), di-octyl phthalate (DOP) were studied based on soluble and insoluble fractions of sludge samples collected at four wastewater treatment plants in Shanghai, China. Three sludge samples comprised hydrophilic colloidal particles of high protein contents and low aromaticity. Meanwhile, these sludges contained DBP of 4.2 to approximately 5.7 mg kg(-1) dried solids (ds) and DEHP of 21.1 to approximately 55.6 mg kg(-1) ds, respectively. Another sludge sample comprised mainly hydrophobic colloidal particles of humic substances and high aromaticity. It contained DBP of 1.18 mg kg(-1) ds and DEHP of 2.89 mg kg(-1) ds, respectively. The most abundant components noted amongst the six studied PAEs were DBP and DEHP, which mostly associated with the insoluble fraction of sludge. Specifically, the DBP and DEHP in insoluble fraction (the solid residual phase) accounted for 89.8 to approximately 98.2% and 88.6 to approximately 99.6% of those in the whole sludge. The partition coefficients of DBP and DEHP for the soluble and insoluble fractions of sludge correlated with the suspension SUVA254, suggesting that interaction between pi-electrons of DBP or DEHP and those of organic particulates in suspension contributes most of the sorption processes.
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Affiliation(s)
- Z Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Yangtze River Water Environment, College of Environmental Science & Engineering, Tongji University, Shanghai, 200092, PR China
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165
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Lu HB, Li H, Liao L, Tian Y, Shuai M, Li JC, Hu MF, Fu Q, Zhu BP. Low-temperature synthesis and photocatalytic properties of ZnO nanotubes by thermal oxidation of Zn nanowires. Nanotechnology 2008; 19:045605. [PMID: 21817511 DOI: 10.1088/0957-4484/19/04/045605] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A low-cost and catalyst-free two-step approach has been developed to produce ZnO nanotubes (ZNTs) by simple thermal oxidation of Zn nanowires under 20 Pa at a low temperature of 400 °C. The growth mechanism of ZNTs is discussed in detail. The formation of these tubular structures is closely linked to the oxidation pressure and temperature, which involves a process consisting of the deposition of Zn nanowires, cracking of the Zn nanowires and sublimation of the Zn cores, and subsequent oxidation to ZNTs. The optical properties were studied by using Raman and photoluminescence spectra, where a strong green emission related to the single ionized oxygen vacancy appears. The photocatalytic activity measurement indicates an enhanced photocatalytic activity of the prepared ZNTs due to their high surface-to-volume ratios and abundant oxygen vacancies near the surfaces of the ZNTs. This type of high surface area structural ZNTs could find promising potential for optoelectronic and environmental applications.
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Affiliation(s)
- H B Lu
- Department of Physics and Key Laboratory of Acoustic and Photonic Materials and Devices, Ministry of Education, Wuhan University, Wuhan 430072, People's Republic of China
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166
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Fu Q, Zhang M, Qin WS, Lu YQ, Zheng HY, Meng B, Lu SS, Lu KH. Cloning the swamp buffalo SRY gene for embryo sexing with multiplex-nested PCR. Theriogenology 2007; 68:1211-8. [PMID: 17928043 DOI: 10.1016/j.theriogenology.2007.07.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2007] [Revised: 06/21/2007] [Accepted: 04/15/2007] [Indexed: 11/18/2022]
Abstract
The polymerase chain reaction (PCR) is an efficient method for sexing embryos. The objective of this study was to develop an accurate and reliable method for sexing swamp buffalo (Bubalus bubalis) embryos. The SRY gene from swamp buffalo genomic DNA was amplified by PCR, using primers based on the sequence of the Holstein SRY gene. This fragment was sequenced based on a BLAST search; the SRY gene was highly conserved. Using a Southern blot, there was a strong signal in genomic DNA only from male swamp buffalo. Two pairs of nested primers, targeted to amplify the swamp buffalo SRY conserved region, were designed for sex identification. Simultaneously, the G3PDH gene was co-amplified to serve as an internal control. A multiplex-nested PCR system was optimized by varying the following individually: concentrations of Mg(2+) and dNTPs, ratio of concentrations of primers and numbers of cycles. Biopsies of 27 IVF-derived embryos and 24 embryos fertilized with Y-chromosome-bearing sperm were examined. Using optimized procedures, clear signals following PCR amplification were obtained from all embryo samples; PCR amplification accuracy was further verified by comparing PCR and dot blots. We concluded that this PCR technique was highly reliable for sexing swamp buffalo embryos.
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Affiliation(s)
- Q Fu
- Animal Reproduction Institute, Guangxi Key Laboratory for Subtropical Bio-Resource Conservation and Utilization, Guangxi University, Nanning, Guangxi 530005, China
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167
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Zhang M, Fu Q, Qin WS, Zheng HY, Lu YQ, Lu SS, Lu KH. 369 AMPLIFICATION OF THE SRY GENE FOR SEXING OF BUFFALO (BUBALUS BUBALIS) EMBRYOS USING NESTED MULTIPLEX PCR. Reprod Fertil Dev 2007. [DOI: 10.1071/rdv19n1ab369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In mammals, the Y chromosome-linked SRY gene is responsible for male sex determination. Therefore, a logical approach for embryo sex identification is to amplify the male-specific single-copy SRY gene. The objective of this study was to design specific primers for amplification of buffalo SRY gene and develop a reliable PCR method for sex identification of buffalo embryos. Genomic DNA was extracted from swamp buffalo (Bubalus bubalis) peripheral blood. A pair of primers based on the sequence of Holstein bovine SRY gene (forward, 52-GTTTGCCTTATGGATTTATT-32; reverse, 52-TCTACTTTAGCCTATTTG-32) was used to amplify whole buffalo SRY gene. This amplified fragment was isolated and constructed into plasmids for sequencing. Two pairs of primers, S1/S2 (forward, 52-CCATGAACGCCTTCATTTTGTG-32; reverse, 52-ACGAGGTCGATATTTATAGC CC-32) and S3/S4 (forward, 52-AAGCAGCTGGGCTATGAGTGGAA-32; reverse, 52-ACGAGGTCGATATTTATAGCCC-32), were designed based on the SRY sequence above. Simultaneously, the G3PDH gene was amplified to serve as an internal control for both male and female embryos. A multiplex-nested-PCR system was optimized by varying the following parameters individually: concentration of Mg2+, dNTPs, primers, and different cycles number. Twenty-seven IVF morulae were identified with the optimal PCR procedure after biopsy. Accuracy of PCR amplification was verified by dot blotting. The sex of 24 embryos fertilized with Y-sperm separated by flow cytometry was also examined. Results indicated that the optimal procedure of Nested-Multiplex-PCR consisted of 1.5 mM Mg2+, 100 �M dNTPs, 0.5 �M SA3/SA4 primers, and 0.25 �M GA3/GA4 primers, and 35 cycles. Accuracy of identification was 100% for 27 IVF morulae; 14 were judged as males and 13 were females. The result of blotting confirmed that the accuracy of amplification was 100%. The proportion of males was 83.3% (20/24) in embryos fertilized with Y-sperm. This confirms that the PCR system targeting the SRY gene can be used for accurate sex identification of buffalo embryos.
This study was supported by grants from the Foundation of Guangxi Key Laboratory for Subtropical Bio-Resource Conservation and Utilization (SB0403) and the Guangxi Department of Science and Technology (0626001-3-1).
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168
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Affiliation(s)
- S. Fueglistaler
- Department of Atmospheric Sciences; University of Washington; Seattle Washington USA
| | - Q. Fu
- Department of Atmospheric Sciences; University of Washington; Seattle Washington USA
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169
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Chylek P, Robinson S, Dubey MK, King MD, Fu Q, Clodius WB. Comparison of near-infrared and thermal infrared cloud phase detections. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006jd007140] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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170
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Hu XY, Xu YM, Qiao Y, Wu DL, Sa YL, Fu Q, Yu JJ, Zhang XR, Zhang J, Gu BJ, Chen R, Xie H. Reduced semen quality in chronic prostatitis patients that induce the release of apoptotic protein Omi/HtrA2 from spermatozoa. Prostate Cancer Prostatic Dis 2006; 10:104-8. [PMID: 17043678 DOI: 10.1038/sj.pcan.4500919] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The relationship between chronic prostatitis and fertility has been disputed for many years. Several groups have shown infection and autoimmune response against prostate antigens could have a deleterious effect on semen quality and fertility. This study was conducted to test the hypothesis that Omi/HtrA2-induced apoptosis in chronic prostatitis could be a mechanism underlying the observed clinical benefit. The Omi/HtrA2 serine protease is a nuclear-encoded mitochondrial protein, which can be released from mitochondria into the cytosol after apoptosis stimuli, inducing apoptosis in caspase-dependent and independent manners. Forty-one patients diagnosed as suffering from chronic prostatitis were included. Healthy normal individuals were included as controls. Human spermatozoa in the semen were purified by Percoll-gradient technique to separate the seminal plasma and other round cells. Measurements for sperm concentration, motility, morphology, proinflammatory cytokines, Omi/HtrA2 mRNA and protein levels in spermatozoa of chronic protatitis patients, were performed accordingly. Significantly increased levels of proinflammatory cytokines were detected in seminal plasma from these prostatitis patients. Omi/HtrA2 mRNA and protein levels were significantly higher in prostatitis men than in normal men. This study shows that chronic prostatitis patients present important alterations in their semen quality parameters, Omi/HtrA2 mRNA and protein levels of spermatozoa. We speculate that the inflammatory process involved may affect male fertility by release of proapoptotic protein Omi/HtrA2.
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Affiliation(s)
- X Y Hu
- Department of Urology, Shanghai Jiaotong University Affiliated No. 6 People's Hospital, Shanghai, China
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171
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Miseki T, Kawakami H, Natsuizaka M, Darmanin S, Cui HY, Chen J, Fu Q, Okada F, Shindo M, Higashino F, Asaka M, Hamuro J, Kobayashi M. Suppression of tumor growth by intra-muscular transfer of naked DNA encoding adrenomedullin antagonist. Cancer Gene Ther 2006; 14:39-44. [PMID: 16841081 DOI: 10.1038/sj.cgt.7700979] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We have recently reported that the intra-tumoral injection of adrenomedullin (AM) antagonist (AMA; AM (22-52)) peptides significantly reduced the in vivo growth of a pancreatic cancer cell line in severely combined immunodeficient (SCID) mice. In the present study, we examined the effects of intra-tumoral and intra-muscular transfers of naked DNA encoding AMA on the in vivo growth of cancer cell lines. We demonstrate that these treatments induce the regression of a pancreatic cancer cell line and a breast cancer cell line inoculated in SCID mice. Furthermore, CD31-positive cells disappear completely from tumor tissues, following treatment, indicating that neo-vascularization is entirely inhibited. These results suggest that the intra-tumoral or intra-muscular transfer of naked DNA encoding AMA might be a promising alternative modality for treating human cancers.
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Affiliation(s)
- T Miseki
- Division of Cancer Biology, Institute for Genetic Medicine, Hokkaido University, Hokkaido, Japan
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172
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Wang YJ, Fu Q, Wu Q, Su FX, Zhou LZ, Ye ZB, Yang JQ. Phase II study of docetaxel plus epirubicin versus docetaxel plus cisplatin as first-line chemotherapy for treatment of advanced breast cancer (CHN TAX-618). J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.10535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
10535 Background: The combination of docetaxel plus epirubicin (TE) have demonstrated a significant activity in advance breast cancer (ABC) as first-line chemotherapy. In the meantime, some emerging literatures suggest that docetaxel-cisplatin (TP) combination has a powerful synergistic interaction with less cardiotoxicity. The main objectives of this multicenter study are to evaluate the efficacy and safety of TE versus TP. Methods: From August 2003 to February 2005, 80 patients with at least one measurable lesion were randomized with ratio of 2:1 to receive TE or TP as as first-line chemotherapy. Dosages were as follows: docetaxel 75 mg/m2 plus epirubicin 60 mg/m2 or docetaxel 75 mg/m2 plus cisplatin 75 mg/m2 intravenously once every 3 weeks for a maximum of 6 cycles. Baseline characteristics were well balanced. Results: A total of 55 patients were assigned to TE (median age 48 yearas) and 25 patients were treated with TP (median age 50 yearas). The same of median 4 cycles treatment were administered for two arms. A complete clinical response was observed in 3.6% and 4.0% of patients treated with TE and TP, respectively (P = 1.00). Overall (complete and partial) clinical response rates for TE and TP were 48% and 56%, respectively (P =0.469). Disease control rates (CR + PR + SD) for TE and TP were 83.6% and 80%, respectively (P = 0.755). The median TTP were TE: 10.8months,TP: 11.2 months days (P = 0.247). Grade 3/4 toxicities included: nausea/vomiting (16.3% TE; 12.0% TP); diarrhea (1.8% TE; 0% TP); alopecia (32.7% TE; 12.0% TP); anemia (1.8% TE; 4.0%TP); neutropenia (65.5% TE; 4.8% TP); febrile neutropenia (3.6% TE; 0% TP). Conclusions: Both TE and TP were active and tolerant regimens for ABC. While there may have been a trend toward lower toxicities in favor of the docetaxel/cisplatin combination, although no significant difference was observed during our study. No significant financial relationships to disclose.
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Affiliation(s)
- Y. J. Wang
- Changhai Hospital, Shanghai, China; Shanghai First People’s Hospital, Shanghai, China; Second Affiliated Hospital of Sun Yat-Sen Universi, Guangzhou, China; Anshan No. 4 People’s Hospital, Anshan, China; Ruijin Hospital, Shanghai, China; Huaxi Hospital of Sichuan University, Sichuan, China
| | - Q. Fu
- Changhai Hospital, Shanghai, China; Shanghai First People’s Hospital, Shanghai, China; Second Affiliated Hospital of Sun Yat-Sen Universi, Guangzhou, China; Anshan No. 4 People’s Hospital, Anshan, China; Ruijin Hospital, Shanghai, China; Huaxi Hospital of Sichuan University, Sichuan, China
| | - Q. Wu
- Changhai Hospital, Shanghai, China; Shanghai First People’s Hospital, Shanghai, China; Second Affiliated Hospital of Sun Yat-Sen Universi, Guangzhou, China; Anshan No. 4 People’s Hospital, Anshan, China; Ruijin Hospital, Shanghai, China; Huaxi Hospital of Sichuan University, Sichuan, China
| | - F. X. Su
- Changhai Hospital, Shanghai, China; Shanghai First People’s Hospital, Shanghai, China; Second Affiliated Hospital of Sun Yat-Sen Universi, Guangzhou, China; Anshan No. 4 People’s Hospital, Anshan, China; Ruijin Hospital, Shanghai, China; Huaxi Hospital of Sichuan University, Sichuan, China
| | - L. Z. Zhou
- Changhai Hospital, Shanghai, China; Shanghai First People’s Hospital, Shanghai, China; Second Affiliated Hospital of Sun Yat-Sen Universi, Guangzhou, China; Anshan No. 4 People’s Hospital, Anshan, China; Ruijin Hospital, Shanghai, China; Huaxi Hospital of Sichuan University, Sichuan, China
| | - Z. B. Ye
- Changhai Hospital, Shanghai, China; Shanghai First People’s Hospital, Shanghai, China; Second Affiliated Hospital of Sun Yat-Sen Universi, Guangzhou, China; Anshan No. 4 People’s Hospital, Anshan, China; Ruijin Hospital, Shanghai, China; Huaxi Hospital of Sichuan University, Sichuan, China
| | - J. Q. Yang
- Changhai Hospital, Shanghai, China; Shanghai First People’s Hospital, Shanghai, China; Second Affiliated Hospital of Sun Yat-Sen Universi, Guangzhou, China; Anshan No. 4 People’s Hospital, Anshan, China; Ruijin Hospital, Shanghai, China; Huaxi Hospital of Sichuan University, Sichuan, China
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Fu Q, McKnight RA, Yu X, Callaway CW, Lane RH. 472 INTRAUTERINE GROWTH RESTRICTION ALTERS HEPATIC INSULIN GROWTH FACTOR 1 PROMOTER UTILIZATION AND EXPRESSION. J Investig Med 2006. [DOI: 10.2310/6650.2005.x0004.471] [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: 11/18/2022]
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175
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Au K, McKnight R, Dahl M, Hale M, Callaway C, Fu Q, Yu X, Lane R, Albertine K. Supplemental Vitamin a Normalizes Messenger Ribonucleic Acid Levels of Stat3 and E-Cadherin in Preterm Lambs Treated with Conventional Ventilaton. J Investig Med 2006. [DOI: 10.1177/108155890605401s119] [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: 01/09/2023]
Affiliation(s)
- K. Au
- Pediatrics, University of Utah, Salt Lake City, UT
| | | | - M.J. Dahl
- Pediatrics, University of Utah, Salt Lake City, UT
| | - M. Hale
- Pediatrics, University of Utah, Salt Lake City, UT
| | - C. Callaway
- Pediatrics, University of Utah, Salt Lake City, UT
| | - Q. Fu
- Pediatrics, University of Utah, Salt Lake City, UT
| | - X. Yu
- Pediatrics, University of Utah, Salt Lake City, UT
| | - R.H. Lane
- Pediatrics, University of Utah, Salt Lake City, UT
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Au K, McKnight RA, Dahl MJ, Hale M, Callaway C, Fu Q, Yu X, Lane RH, Albertine KH. 39 SUPPLEMENTAL VITAMIN A NORMALIZES MESSENGER RIBONUCLEIC ACID LEVELS OF STAT3 AND E-CADHERIN IN PRETERM LAMBS TREATED WITH CONVENTIONAL VENTILATON. J Investig Med 2006. [DOI: 10.2310/6650.2005.x0004.38] [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: 11/18/2022]
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177
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Collins WD, Ramaswamy V, Schwarzkopf MD, Sun Y, Portmann RW, Fu Q, Casanova SEB, Dufresne JL, Fillmore DW, Forster PMD, Galin VY, Gohar LK, Ingram WJ, Kratz DP, Lefebvre MP, Li J, Marquet P, Oinas V, Tsushima Y, Uchiyama T, Zhong WY. Radiative forcing by well-mixed greenhouse gases: Estimates from climate models in the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4). ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006713] [Citation(s) in RCA: 189] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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178
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Au K, McKnight RA, Dahl MJ, Hale M, Callaway C, Fu Q, Yu X, Lane RH, Albertine KH. 236 SUPPLEMENTAL VITAMIN A NORMALIZES MESSENGER RIBONUCLEIC ACID LEVELS OF STAT3 AND E-CADHERIN IN PRETERM LAMBS TREATED WITH CONVENTIONAL VENTILATON. J Investig Med 2006. [DOI: 10.2310/6650.2005.x0004.235] [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: 11/18/2022]
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179
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Bellido T, Ali AA, Gubrij I, Plotkin LI, Fu Q, O'Brien CA, Manolagas SC, Jilka RL. Chronic elevation of parathyroid hormone in mice reduces expression of sclerostin by osteocytes: a novel mechanism for hormonal control of osteoblastogenesis. Endocrinology 2005; 146:4577-83. [PMID: 16081646 DOI: 10.1210/en.2005-0239] [Citation(s) in RCA: 500] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Both chronic excess of PTH, as in hyperparathyroidism, and intermittent elevation of PTH (by daily injections) increase the number of osteoblasts; albeit, the former is associated with bone catabolism and the later with bone anabolism. Intermittent PTH increases osteoblast number by attenuating osteoblast apoptosis, an effect that requires the transcription factor Runx2. However, chronic elevation of PTH does not affect osteoblast apoptosis because it stimulates the proteasomal degradation of Runx2. Here, we studied the effects of PTH on Sost, a Runx2 target gene expressed in osteocytes (former osteoblasts embedded in the bone matrix), which antagonizes the pro-osteoblastogenic actions of bone morphogenetic proteins and Wnts. We report that continuous infusion of PTH to mice for 4 d decreased Sost mRNA expression in vertebral bone by 80-90%. This effect was accompanied by a comparable reduction of sclerostin, the product of Sost, in osteocytes, as determined by quantitative immunoblot analysis of bone extracts and by immunostaining. In contrast, a single injection of PTH caused a transient 50% reduction in Sost mRNA at 2 h, but four daily injections had no effect on Sost mRNA or sclerostin. PTH strongly decreased Sost expression in osteocytes formed in primary cultures of neonatal murine calvaria cells as well as in osteocytic MLO-A5 cells, demonstrating a direct effect of PTH on this cell type. These results, together with evidence that sclerostin antagonizes bone morphogenetic proteins and Wnts, strongly suggest that suppression of Sost by PTH represents a novel mechanism for hormonal control of osteoblastogenesis mediated by osteocytes.
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Affiliation(s)
- T Bellido
- Division of Endocrinology and Metabolism, and Central Arkansas Veterans Healthcare System, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, Arkansas 72205, USA.
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180
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Santer BD, Wigley TML, Mears C, Wentz FJ, Klein SA, Seidel DJ, Taylor KE, Thorne PW, Wehner MF, Gleckler PJ, Boyle JS, Collins WD, Dixon KW, Doutriaux C, Free M, Fu Q, Hansen JE, Jones GS, Ruedy R, Karl TR, Lanzante JR, Meehl GA, Ramaswamy V, Russell G, Schmidt GA. Amplification of surface temperature trends and variability in the tropical atmosphere. Science 2005; 309:1551-6. [PMID: 16099951 DOI: 10.1126/science.1114867] [Citation(s) in RCA: 226] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The month-to-month variability of tropical temperatures is larger in the troposphere than at Earth's surface. This amplification behavior is similar in a range of observations and climate model simulations and is consistent with basic theory. On multidecadal time scales, tropospheric amplification of surface warming is a robust feature of model simulations, but it occurs in only one observational data set. Other observations show weak, or even negative, amplification. These results suggest either that different physical mechanisms control amplification processes on monthly and decadal time scales, and models fail to capture such behavior; or (more plausibly) that residual errors in several observational data sets used here affect their representation of long-term trends.
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Affiliation(s)
- B D Santer
- Program for Climate Model Diagnosis and Intercomparison, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
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181
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Zhang W, Zhao ZY, Wu Q, Li J, Fu Q, Cheng J, Xu N, Xu C, Wu CP, Xu LG. Multicenter phase II study of modified FOLFIRI in patients in a Chinese population with advanced colorectal cancer (CRC) refractory to fluoropyrimidine and oxaliplatin. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.3686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- W. Zhang
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
| | - Z. Y. Zhao
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
| | - Q. Wu
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
| | - J. Li
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
| | - Q. Fu
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
| | - J. Cheng
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
| | - N. Xu
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
| | - C. Xu
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
| | - C. P. Wu
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
| | - L. G. Xu
- Cancer Hosp Fudan Univ, Shanghai, China; Ctr Hosp of JingAn District, Shanghai, China; No. 1 People’s Hosp, Shanghai, China; Xinhua Hosp, Shanghai, China; Changhai Hosp, Shanghai, China; Cancer Hosp, Jiangsu, China; No. 1 Hosp Zhejiang Medcl Univ, Zhejiang, China; Jiangyin People’s Hosp, Jiangsu, China; Changzhou No. 1 People’s Hosp, Jiangsu, China
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Abstract
We have investigated the effect of serotonin (5-HT) and okadaic acid (OA) on presynaptic processes at the crayfish inhibitory neuromuscular junction. Two different physiological parameters of transmitter release were examined: release kinetics and the size of the readily releasable pool of vesicles (RRP). Using a paired pulse stimulus and high frequency trains, we established that a single broad action potential, recorded in 20 mM tetraethylammonium and 1 mM 4-amino-pyridine, released the RRP in its entirety. Thus, by measuring the amplitude of inhibitory postsynaptic potential (IPSC) we were able to directly assess the effects of 5-HT and OA on the RRP. Serotonin at 200 nM and OA at 2.5 microM each significantly increased IPSC above control levels and the effects of these two modulators were comparable. Both modulators also induced a leftward shift in the rising phase of IPSC, i.e. an apparent acceleration in release kinetics. The shift caused by OA was significantly more pronounced than that induced by 5-HT. This apparent acceleration in release was not associated with a corresponding change in the presynaptic Ca2+ transient measured at a 2 kHz resolution, suggesting that modulation was not due to an acceleration in Ca2+ channel kinetics. In view of the comparable increase in the size of the RRP by the modulators, the differential modulation of release kinetics suggests that these two parameters may be modulated by separate biochemical processes.
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Affiliation(s)
- J-W Lin
- Department of Biology, Boston University, 5 Cummington Street, Boston, MA 02215, USA.
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183
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Ramanathan V, Chung C, Kim D, Bettge T, Buja L, Kiehl JT, Washington WM, Fu Q, Sikka DR, Wild M. Atmospheric brown clouds: impacts on South Asian climate and hydrological cycle. Proc Natl Acad Sci U S A 2005; 102:5326-33. [PMID: 15749818 PMCID: PMC552786 DOI: 10.1073/pnas.0500656102] [Citation(s) in RCA: 240] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
South Asian emissions of fossil fuel SO(2) and black carbon increased approximately 6-fold since 1930, resulting in large atmospheric concentrations of black carbon and other aerosols. This period also witnessed strong negative trends of surface solar radiation, surface evaporation, and summer monsoon rainfall. These changes over India were accompanied by an increase in atmospheric stability and a decrease in sea surface temperature gradients in the Northern Indian Ocean. We conducted an ensemble of coupled ocean-atmosphere simulations from 1930 to 2000 to understand the role of atmospheric brown clouds in the observed trends. The simulations adopt the aerosol radiative forcing from the Indian Ocean experiment observations and also account for global increases in greenhouse gases and sulfate aerosols. The simulated decreases in surface solar radiation, changes in surface and atmospheric temperatures over land and sea, and decreases in monsoon rainfall are similar to the observed trends. We also show that greenhouse gases and sulfates, by themselves, do not account for the magnitude or even the sign in many instances, of the observed trends. Thus, our simulations suggest that absorbing aerosols in atmospheric brown clouds may have played a major role in the observed regional climate and hydrological cycle changes and have masked as much as 50% of the surface warming due to the global increase in greenhouse gases. The simulations also raise the possibility that, if current trends in emissions continue, the subcontinent may experience a doubling of the drought frequency in the coming decades.
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Affiliation(s)
- V Ramanathan
- Scripps Institution of Oceanography, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0221, USA
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184
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Yan L, Zhu F, Jin L, Lv Q, Fu Q. FCGR3B polymorphism in three ethnic Chinese populations. Immunohematology 2005; 21:25-8. [PMID: 15783303] [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: 05/02/2023]
Abstract
Fc gamma RIIIb receptor is expressed primarily on neutrophils as three polymorphic antigens (HNA-1a, HNA-1b, and HNA-1c) that are encoded by alleles FCGR3B*1, FCGR3B*2, and FCGR3B*3, respectively. These antigens play an important role in immune neutropenia; their absence predisposes individuals who lack them to life-threatening infections. This study investigated the FCGR3B gene frequencies in three ethnic Chinese populations: Han, She, and Tajik. FCGR3B*1, FCGR3B*2, and FCGR3B*3 were genotyped by PCR using sequence specific primers (PCR-SSP). The results showed the gene frequencies were 0.55 for FCGR3B*1 and 0.45 for FCGR3B*2 in 177 Han individuals, 0.69 for FCGR3B*1 and 0.31 for FCGR3B*2 in 87 She individuals, and 0.35 for FCGR3B*1 and 0.65 for FCGR3B*2 in 99 Tajik individuals, respectively. The FCGR3Bnull genotype was not found, but the FCGR3B*3 allele was identified in only three individuals in the Tajik population. DNA clone and sequencing confirmed that these individuals had the C ==>A mutation at position 266 on exon 3. This study found that the gene frequencies in Han and She ethnic groups were similar to those previously reported in the Asian population, but the FCGR3B allele frequencies in the Tajik population were more similar to that of Caucasians.
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Affiliation(s)
- L Yan
- Institute of Blood Transfusion Medicine, Blood Center of Zhejiang Province, Hangz, Zhejiang 310006, P. R. China
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185
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Yan L, Zhu F, Fu Q, He J. ABO, Rh, MNS, Duffy, Kidd,Yt, Scianna, and Colton blood group systems in indigenous Chinese. Immunohematology 2005; 21:10-4. [PMID: 15783300] [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: 05/02/2023]
Abstract
The frequencies of selected alleles in the ABO, Rh, MNS, Duffy, Kidd, Yt, Scianna, and Colton blood group systems were determined among four indigenous Chinese ethnic populations: Han, Tajik, She, and Yugu. Genotypes were determined by PCR or PCR with sequence specific primers (PCR-SSP). In the Han population, the frequencies of A1, A2, B, and O1 alleles were 0.189, 0.003, 0.170, and 0.638, respectively, and the O2 allele was not identified. Among D+ Hans, the frequencies of C and c alleles were 0.67 and 0.33 and the frequencies of E and e were 0.22 and 0.78, respectively. Among D- Hans, the frequencies of C and c alleles were 0.23 and 0.77 and the frequencies of E and e were 0.04 and 0.96, respectively. The frequencies of M and N alleles were 0.478 and 0.522 among Hans and 0.655 and 0.345 among Tajiks, respectively. The frequencies of Fya and Fyb alleles were 0.94 and 0.06 among Hans and 0.98 and 0.02 among Shes, respectively. The frequencies of Jka and Jkb alleles were 0.49 and 0.51 among Hans and 0.56 and 0.44 among Shes, respectively. The frequency of the Yta allele was 1.00 among Hans. The frequencies of Yta and Ytb alleles were 0.94 and 0.06 among Tajiks, respectively. The frequency of the Sc1 allele was 1.00 in both Han and Tajik ethnic populations. The frequency of the Coa allele was 1.00 in Han, She, and Tajik ethnic populations.
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Affiliation(s)
- L Yan
- Institute of Transfusion Medicine, Blood Center of Zhejiang Province, Wulin Road 345, Hangzhou, Zhejiang 310006, P.R. China
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186
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O'Brien E, Zhao L, McKnight R, Fu Q, Yu X, Callaway C, Lane R. 129 UTEROPLACENTAL INSUFFICIENCY AFFECTS EPIGENETIC DETERMINANTS IN THE GROWTH RETARDED RAT LUNG. J Investig Med 2005. [DOI: 10.2310/6650.2005.00005.128] [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: 11/18/2022]
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187
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Fu Q, McKnight R, Yu X, Wang L, Lane R. 462 IUGR ALTERS EPIGENETIC REGULATION OF HEPATIC DUSP5. J Investig Med 2005. [DOI: 10.2310/6650.2005.00005.461] [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: 11/18/2022]
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188
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O'Brien E, Zhao L, McKnight R, Fu Q, Yu X, Albertine K, Lane R. 174 MECHANICAL VENTILATION AFFECTS EPIGENETIC DETERMINANTS IN PRETERM LAMB LUNGS. J Investig Med 2005. [DOI: 10.2310/6650.2005.00005.173] [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: 11/18/2022]
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189
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Palmer D, Prasad A, Arbab-Zadeh A, Zhang R, Dijk E, Williams K, Webster K, Martini E, Fu Q, Levine BD. Six Months of Endurance Training Increases Left Ventricular Stroke Volume and Diastolic Reserve in Sedentary Seniors. Med Sci Sports Exerc 2004. [DOI: 10.1249/00005768-200405001-00407] [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: 11/21/2022]
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190
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Rhoads JM, Chen W, Gookin J, Wu GY, Fu Q, Blikslager AT, Rippe RA, Argenzio RA, Cance WG, Weaver EM, Romer LH. Arginine stimulates intestinal cell migration through a focal adhesion kinase dependent mechanism. Gut 2004; 53:514-22. [PMID: 15016745 PMCID: PMC1774018 DOI: 10.1136/gut.2003.027540] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.7] [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: 12/08/2022]
Abstract
BACKGROUND L-Arginine is a nutritional supplement that may be useful for promoting intestinal repair. Arginine is metabolised by the oxidative deiminase pathway to form nitric oxide (NO) and by the arginase pathway to yield ornithine and polyamines. AIMS To determine if arginine stimulates restitution via activation of NO synthesis and/or polyamine synthesis. METHODS We determined the effects of arginine on cultured intestinal cell migration, NO production, polyamine levels, and activation of focal adhesion kinase, a key mediator of cell migration. RESULTS Arginine increased the rate of cell migration in a dose dependent biphasic manner, and was additive with bovine serum concentrate (BSC). Arginine and an NO donor activated focal adhesion kinase (a tyrosine kinase which localises to cell matrix contacts and mediates beta1 integrin signalling) after wounding. Arginine stimulated cell migration was dependent on focal adhesion kinase (FAK) signalling, as demonstrated using adenovirus mediated transfection with a kinase negative mutant of FAK. Arginine stimulated migration was dependent on NO production and was blocked by NO synthase inhibitors. Arginine dependent migration required synthesis of polyamines but elevating extracellular arginine concentration above 0.4 mM did not enhance cellular polyamine levels. CONCLUSIONS These results showed that L-arginine stimulates cell migration through NO and FAK dependent pathways and that combination therapy with arginine and BSC may enhance intestinal restitution via separate and convergent pathways.
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Affiliation(s)
- J M Rhoads
- Department of Pediatrics, and Center in Gastrointestinal Biology and Disease, University of North Carolina, Chapel Hill, North Carolina, USA.
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191
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Abstract
Prothrombin deficiency is a rare bleeding disorder inherited as an autosomal recessive trait. In this study, we reported a Chinese family with hereditary prothrombin deficiency. The proposita had a prolonged activated partial thromboplastin time (APTT, 71.6 s) and prothrombin time (PT, 28.0 s). The coagulation factors activities were normal except that prothrombin coagulation activity was markedly reduced, and the prothrombin antigen level was moderately decreased. Nucleotide sequencing of amplified DNA revealed a novel mutation, Glu (GAG) to Gly (GGG) at residue 29, which normally undergoes gamma-carboxylation within the Gla domain of prothrombin. The proposita was identified as homozygous, while her father, mother and maternal grandmother were heterozygous for the mutation. Gla29 has been demonstrated as one of the key residue for Ca2+-binding, membrane interaction and biological activity of prothrombin.
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Affiliation(s)
- W Wang
- Division of Thrombosis and Hemostasis, Shanghai Institute of Hematology, Ruijin Hospital, Shanghai Second Medical University, Shanghai, China
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192
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Wagner T, Fu Q, Winde C, Tsukimoto S, Phillipp F. A Comparative Study of the Growth of Cr on (110)TiO2Rutile, (0001) -Al2O3and (100)SrTiO3Surfaces. ACTA ACUST UNITED AC 2004. [DOI: 10.1023/b:ints.0000012303.59127.37] [Citation(s) in RCA: 9] [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: 11/12/2022]
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193
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Fu Q, McKnight RA, Yu X, Calloway CW, Wang V, Lane RH. 130 INTRAUTERINE GROWTH RETARDATION DECREASES HEPATIC HISTONE DEACETYLASE 1 GENE EXPRESSION AND INCREASES HISTONE 3 ACETYLATION IN A SITE SPECIFIC MANNER. J Investig Med 2004. [DOI: 10.1136/jim-52-suppl1-130] [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: 11/04/2022]
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194
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Streets DG, Bond TC, Carmichael GR, Fernandes SD, Fu Q, He D, Klimont Z, Nelson SM, Tsai NY, Wang MQ, Woo JH, Yarber KF. An inventory of gaseous and primary aerosol emissions in Asia in the year 2000. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003093] [Citation(s) in RCA: 1579] [Impact Index Per Article: 75.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D. G. Streets
- Decision and Information Sciences Division; Argonne National Laboratory; Argonne Illinois USA
| | - T. C. Bond
- Department of Civil and Environmental Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois USA
| | - G. R. Carmichael
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - S. D. Fernandes
- Decision and Information Sciences Division; Argonne National Laboratory; Argonne Illinois USA
| | - Q. Fu
- Decision and Information Sciences Division; Argonne National Laboratory; Argonne Illinois USA
- Shanghai Academy of Environmental Sciences; Shanghai China
| | - D. He
- The Energy Foundation; Beijing China
- Energy Systems Division; Argonne National Laboratory; Argonne Illinois USA
| | - Z. Klimont
- International Institute for Applied Systems Analysis; Laxenburg Austria
| | - S. M. Nelson
- Decision and Information Sciences Division; Argonne National Laboratory; Argonne Illinois USA
| | - N. Y. Tsai
- Decision and Information Sciences Division; Argonne National Laboratory; Argonne Illinois USA
| | - M. Q. Wang
- Energy Systems Division; Argonne National Laboratory; Argonne Illinois USA
| | - J.-H. Woo
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - K. F. Yarber
- Decision and Information Sciences Division; Argonne National Laboratory; Argonne Illinois USA
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195
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Abstract
A 16-year-old Chinese female with prolonged bleeding after surgery has been studied. Routine clotting tests revealed a prolonged activated partial thromboplastin time (APTT; 126.6 s) and prothrombin time (PT; 42.8 s). The coagulation factors activities were normal except for factor V, which was only 0.3% of normal. DNA analysis of the FV gene revealed five nucleotide substitutions in exons, including two silent mutations (G327A and A5112G), one polymorphism (G1628A), a G1348T missense mutation and 4887 approximately 8delG. These abnormalities were associated with her FV deficiency, perhaps by causing a Gly392Cys substitution in FV amino acid sequence or by introducing a premature stop codon at amino acid position 1390. This is the third case in which FV deficiency is caused by compound heterozygous mutation of F5 gene, and is the first report from a Chinese family.
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Affiliation(s)
- Q Fu
- Division of Thrombosis and Hemostasis, Shanghai Institute of Hematology, Ruijin Hospital, Shanghai Second Medical University, Shanghai, China
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196
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Fu Q, Arbab-Zadeh A, Perhonen MA, Zhang R, Zuckerman JH, Levine BD. GENDER DIFFERENCE IN HEMODYNAMICS OF ORTHOSTATIC INTOLERANCE. Med Sci Sports Exerc 2003. [DOI: 10.1097/00005768-200305001-01712] [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: 11/25/2022]
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197
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198
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199
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Raghavachari K, Fu Q, Chen G, Li L, Li CH, Law DC, Hicks RF. Hydrogen adsorption on the indium-rich indium phosphide (001) surface: a novel way to produce bridging In-H-In bonds. J Am Chem Soc 2002; 124:15119-24. [PMID: 12475358 DOI: 10.1021/ja020348p] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The indium phosphide (001) surface provides a unique chemical environment for studying the reactivity of hydrogen toward the electron-deficient group IIIA element, indium. Hydrogen adsorption on the In-rich delta(2 x 4) reconstruction produced a neutral, covalently bound bridging indium hydride. Using vibrational spectroscopy and ab initio cluster calculations, two types of bridging hydrides were identified, a (mu-H)In(2) and a (mu-H)(2)In(3) "butterfly-like" structure. These structures were formed owing to the large thermodynamic driving force for adsorption of H atoms on solid-state indium dimers.
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Affiliation(s)
- K Raghavachari
- Chemical Engineering Department, University of California, Los Angeles, CA 90095, USA
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200
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Kousteni S, Chen JR, Bellido T, Han L, Ali AA, O'Brien CA, Plotkin L, Fu Q, Mancino AT, Wen Y, Vertino AM, Powers CC, Stewart SA, Ebert R, Parfitt AM, Weinstein RS, Jilka RL, Manolagas SC. Reversal of bone loss in mice by nongenotropic signaling of sex steroids. Science 2002; 298:843-6. [PMID: 12399595 DOI: 10.1126/science.1074935] [Citation(s) in RCA: 294] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We show that sex steroids protect the adult murine skeleton through a mechanism that is distinct from that used to preserve the mass and function of reproductive organs. The classical genotropic actions of sex steroid receptors are dispensable for their bone protective effects, but essential for their effects on reproductive tissues. A synthetic ligand (4-estren-3alpha,17beta-diol) that reproduces the nongenotropic effects of sex steroids, without affecting classical transcription, increases bone mass and strength in ovariectomized females above the level of the estrogen-replete state and is at least as effective as dihydrotestosterone in orchidectomized males, without affecting reproductive organs. Such ligands merit investigation as potential therapeutic alternatives to hormone replacement for osteoporosis in both women and men [corrected].
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Affiliation(s)
- S Kousteni
- Division of Endocrinology and Metabolism, Department of Internal Medicine, and Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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