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Wang J, Li ZJ, Lan XY, Hua LS, Huai YT, Huang YZ, Ma L, Zhao M, Jing YJ, Chen H, Wang JQ. Two novel SNPs in the coding region of the bovine PRDM16 gene and its associations with growth traits. Mol Biol Rep 2010; 37:571-7. [PMID: 19760096 DOI: 10.1007/s11033-009-9816-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2009] [Accepted: 09/03/2009] [Indexed: 11/25/2022]
Abstract
As a zinc-finger protein, PR domain containing 16 (PRDM16) controls brown fat determination by stimulating brown fat-selective genes expression while suppressing the expression of genes selective for white fat cells, whose mutations were associated with myelodysplastic syndrome (MDS) and leukemogenesis in human and murine model of leukemia. To date, no polymorphisms of PRDM16 gene in bovine had been reported. Herein, PCR-SSCP and DNA sequencing methods were employed to screen the genetic variation within PRDM16 gene in 1031 Chinese indigenous bovine. The results revealed two novel silent mutations: XM_001788152: m.1641T>C (547aa), 1881G>A (627aa). Hence, we described the PvuII and HaeIII forced PCR-RFLP methods for detecting these mutations, respectively. In the forced PCR-RFLP analysis with PvuII, the frequencies of bovine PRDM16-C allele varied from 0.044 to 0.506 in four Chinese native breeds. In the forced PCR-RFLP analysis with HaeIII, the frequencies of bovine PRDM16-G allele were 0.474, 0.494, 0.576 and 0.906 for Jiaxian (JX), Nanyang (NY), Qinchuan (QC) and Chinese Holstein (CH) population. Significant statistical differences between genotypic frequencies implied that both of the polymorphic loci were significantly associated with cattle breeds by the chi square test (chi2 = 190.058, P < 0.001 and chi2 = 118.239, P < 0.001 for PvuII; chi2 = 209.842, P < 0.001 and chi2 = 108.711, P < 0.001 for HaeIII). The associations of the PvuII and HaeIII forced PCR-RFLPs of bovine PRDM16 loci with growth traits were analyzed in Nanyang breed. The two SNPs were associated with body weight and average daily gain in Nanyang aged 12 months, individuals with genotype TT and AA showed significantly better body weight (P < 0.05) and average daily gain (P < 0.01) at 12 months, respectively.
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2377
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Chen H, Huang X, Guo X, Mailman RB, Park Y, Kamel F, Umbach DM, Xu Q, Hollenbeck A, Schatzkin A, Blair A. Smoking duration, intensity, and risk of Parkinson disease. Neurology 2010; 74:878-84. [PMID: 20220126 DOI: 10.1212/wnl.0b013e3181d55f38] [Citation(s) in RCA: 160] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To evaluate the relative importance of smoking duration vs intensity in reducing the risk of Parkinson disease (PD). METHODS The study included 305,468 participants of the NIH-AARP Diet and Health cohort, of whom 1,662 had a PD diagnosis after 1995. We estimated odds ratios (OR) and 95% confidence intervals from multivariate logistic regression models. RESULTS Compared with never smokers, the multivariate ORs were 0.78 for past smokers and 0.56 for current smokers. Among past smokers, a monotonic trend toward lower PD risk was observed for all indicators of more smoking. Stratified analyses indicated that smoking duration was associated with lower PD risk within fixed intensities of smoking. For example, compared with never smokers, the ORs among past smokers who smoked >20 cigarettes/day were 0.96 for 1-9 years of smoking, 0.78 for 10-19 years, 0.64 for 20-29 years, and 0.59 for 30 years or more (p for trend = 0.001). In contrast, at fixed duration, the typical number of cigarettes smoked per day in general was not related to PD risk. Close examination of smoking behaviors in early life showed that patients with PD were less likely to be smokers at each age period, but if they smoked, they smoked similar numbers of cigarettes per day as individuals without PD. CONCLUSIONS This large study suggests that long-term smoking is more important than smoking intensity in the smoking-Parkinson disease relationship.
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2378
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Cai X, Chen H, Lei C. Matrilineal genetic inter-introgression of Bos taurus and Bos indicus in China. Livest Sci 2010. [DOI: 10.1016/j.livsci.2009.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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2379
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Jin QJ, Sun JJ, Fang XT, Zhang CL, Yang L, Chen DX, Shi XY, Du Y, Lan XY, Chen H. Molecular characterization and polymorphisms of the caprine Somatostatin (SST) and SST Receptor 1 (SSTR1) genes that are linked with growth traits. Mol Biol Rep 2010; 38:3129-35. [DOI: 10.1007/s11033-010-9983-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2009] [Accepted: 01/20/2010] [Indexed: 12/18/2022]
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2380
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Macphee AG, Divol L, Kemp AJ, Akli KU, Beg FN, Chen CD, Chen H, Hey DS, Fedosejevs RJ, Freeman RR, Henesian M, Key MH, Le Pape S, Link A, Ma T, Mackinnon AJ, Ovchinnikov VM, Patel PK, Phillips TW, Stephens RB, Tabak M, Town R, Tsui YY, Van Woerkom LD, Wei MS, Wilks SC. Limitation on prepulse level for cone-guided fast-ignition inertial confinement fusion. PHYSICAL REVIEW LETTERS 2010; 104:055002. [PMID: 20366771 DOI: 10.1103/physrevlett.104.055002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Indexed: 05/29/2023]
Abstract
The viability of fast-ignition (FI) inertial confinement fusion hinges on the efficient transfer of laser energy to the compressed fuel via multi-MeV electrons. Preformed plasma due to the laser prepulse strongly influences ultraintense laser plasma interactions and hot electron generation in the hollow cone of an FI target. We induced a prepulse and consequent preplasma in copper cone targets and measured the energy deposition zone of the main pulse by imaging the emitted K_{alpha} radiation. Simulation of the radiation hydrodynamics of the preplasma and particle in cell modeling of the main pulse interaction agree well with the measured deposition zones and provide an insight into the energy deposition mechanism and electron distribution. It was demonstrated that a under these conditions a 100 mJ prepulse eliminates the forward going component of approximately 2-4 MeV electrons.
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2381
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Youngwirth L, Benavidez J, Sippel R, Chen H. Parathyroid Hormone Deficiency after Total Thyroidectomy: Incidence and Time to Resolution. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2382
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Alexander V, Roy M, Steffens K, Kunnimalaiyaan M, Chen H. Azacytidine Induces Growth Arrest and Suppresses Neuroendocrine Markers in Carcinoids. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2383
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Tao Y, Chen H, Tian NN, Huo DT, Li G, Zhang YH, Liu Y, Fang FG, Ding JP, Zhang XR. Effects of l-Ascorbic Acid, α-Tocopherol and Co-culture onIn VitroDevelopmental Potential of Porcine Cumulus Cells Free Oocytes. Reprod Domest Anim 2010; 45:19-25. [DOI: 10.1111/j.1439-0531.2008.01129.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2384
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Davis R, Pinchot S, Jarjour S, Kunnimalaiyaan M, Chen H. Resveratrol-Induced Notch Activation Potentially Mediates Autophagy in Human Follicular Thyroid Cancer Cells. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.440] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2385
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Chen Y, Forsyth E, Pan K, Chen H, Szema A, Szema K, Chenrachasit P. Atmospheric Temperature & Pollen Counts Impact New York City Asthma ER Visits. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2386
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Roy M, Jaskula-Sztul R, Pinchot S, Pisarnturakit P, Kunnimalaiyaan M, Chen H. Histone Deacetylase Inhibitors Transcriptionally Regulate Notch1 Expression in Neuroendocrine Malignancies. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2387
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Jagasia M, Pickard S, Chen H, Dixon S, Savani B. Cyclophosphamide Or Plerixafor And G-CSF Stem Cell Mobilization (SCM): Initial Cost Comparison Analysis. Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2388
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Zarebczan B, Chen H. Multi-targeted approach in the treatment of thyroid cancer. MINERVA CHIR 2010; 65:59-69. [PMID: 20212418 PMCID: PMC2901507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Thyroid cancer is the most common malignancy of the endocrine system. There are several variants, ranging from well-differentiated cancers, such as papillary carcinomas, to poorly differentiated types, which carry a worse prognosis. Many patients with well-differentiated thyroid cancers are cured by surgical intervention alone, while others require adjuvant therapy. For those patients with more aggressive tumors, such as metastatic and anaplastic thyroid cancers, surgery rarely offers a definitive cure and alternative treatment methods such as chemotherapy do not improve survival. Due to the difficulty in treating aggressive thyroid cancers, other novel therapies are needed. In this paper, we will review current strategies for managing the various types of thyroid carcinomas. We will also address many of the studied genetic pathways and new therapeutic drug targets for treating individual thyroid malignancies.
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2389
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Cook M, Luo J, Pinchot S, Kunnimalaiyaan M, Chen H. Notch1 Is a Downstream Effector of Raf-1 Signaling in Gastrointestinal Carcinoid Cells. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2390
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Pinchot S, Davis R, Kunnimalaiyaan M, Chen H. The Synergistic Effects of the Somatostatin Analog Pasireotide (SOM230) and Raf-1 Pathway Activation in Human Carcinoid Cancer Cells. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2391
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Griffith M, Misfeldt A, Chen H, Jagasia M, Kassim A, Savani B, Survant M, Jagasia S. Factors Predicting New-Onset Diabetes Mellitus And Metabolic Syndrome After Allogeneic Stem Cell Transplantation: Implication For Early Preventive Intervention. Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2392
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Adler J, Chen H. Is Endocrine Surgery Research Dying? J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2393
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Chan CS, Chen H, Bradley A, Dragatsis I, Rosenmund C, Davis RL. α8-integrins are required for hippocampal long-term potentiation but not for hippocampal-dependent learning. GENES BRAIN AND BEHAVIOR 2010; 9:402-10. [PMID: 20132319 DOI: 10.1111/j.1601-183x.2010.00569.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Integrins are heterodimeric transmembrane cell adhesion receptors that are essential for a wide range of biological functions via cell-matrix and cell-cell interactions. Recent studies have provided evidence that some of the subunits in the integrin family are involved in synaptic and behavioral plasticity. To further understand the role of integrins in the mammalian central nervous system, we generated a postnatal forebrain and excitatory neuron-specific knockout of alpha8-integrin in the mouse. Behavioral studies showed that the mutant mice are normal in multiple hippocampal-dependent learning tasks, including a T-maze, non-match-to-place working memory task for which other integrin subunits like alpha3- and beta1-integrin are required. In contrast, mice mutant for alpha8-integrin exhibited a specific impairment of long-term potentiation (LTP) at Schaffer collateral-CA1 synapses, whereas basal synaptic transmission, paired-pulse facilitation and long-term depression (LTD) remained unaffected. Because LTP is also impaired in the absence of alpha3-integrin, our results indicate that multiple integrin molecules are required for the normal expression of LTP, and different integrins display distinct roles in behavioral and neurophysiological processes like synaptic plasticity.
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2394
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Chen Y, Liu K, Xu L, Chen H, Liu D, Zhang X, Shi H, Han W, Wang Y, Zhao T, Wang J, Wang J, Huang X. HLA-mismatched hematopoietic SCT without in vitro T-cell depletion for myelodysplastic syndrome. Bone Marrow Transplant 2010; 45:1333-9. [PMID: 20062100 DOI: 10.1038/bmt.2009.351] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Allogeneic hematopoietic SCT (HSCT) is currently the only curative treatment for myelodysplastic syndrome (MDS). However, many patients cannot find an HLA-matched donor. We have developed a new protocol for HLA-mismatched (including haploidentical) HSCT using G-CSF-primed BM plus G-CSF-mobilized PBSCs without in vitro T-cell depletion. A total of 36 patients diagnosed with high-risk MDS (RAEB (refractory anemia with excess blasts) or RAEBt (RAEB in transformation)) underwent transplantation from HLA-mismatched family donors. All patients achieved sustained myeloid engraftment. The cumulative incidence of grades II-IV acute GVHD (aGVHD) was 60% and that of grades III and IV aGVHD was 15%. The 2-year cumulative incidence of chronic GVHD was 56%. After a median follow-up of 17 months, 4 patients had relapsed and died and 25 patients were still alive. The 2-year probability of leukemia-free survival (LFS) was 65%. Patients transplanted within 7 months of diagnosis had better LFS (89 vs 43% ). Severe aGVHD decreased the LFS significantly by increasing non-relapse mortality (NRM). This study confirms that HLA-mismatched HSCT is a treatment option for MDS. Patients with high-risk MDS benefit from receiving HSCT early in the course of the disease.
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2395
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Liu S, Sun Y, Chen H, Song S, Xu Y. Magnetic screening of the potential targeted protein of salvianolic acid B using T7 phage display library. Appl Biochem Biotechnol 2010; 162:1206-13. [PMID: 20049555 DOI: 10.1007/s12010-009-8888-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2009] [Accepted: 12/08/2009] [Indexed: 10/20/2022]
Abstract
Salvianolic acid B is one of the effective components from the Chinese traditional drug Salvia miltiorrhiza (Danshen), which is widely used as a usual clinic drug for atherosclerosis-related disorder patients in China. But the targeting protein of salvianolic acid B is still not known. The possible targeting proteins of salvianolic acid B were explored by high throughput screening in this paper. Attached to the magnetic nanoparticles, salvianolic acid B was used for screening the high-affinity protein from the displaying cDNA peptide library phage. After biopanning, the selected protein or peptide sequences were used to explore the whole proteins containing the selected sequences in the National Center for Biotechnology Information website using blast. One of the selected phages was carried out by affinity analysis with salvianolic acid B using capillary electrophoresis (CE). The CE results indicated that the protein or peptide on the surface of the selected phages could bind the drug salvianolic acid B. The results are helpful to preliminarily explain the pharmacology of salvianolic acid B.
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2396
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Chen H, Gharb B, Salgad C. Elective Amputation of the Toes in Severe Lymphedema of the Lower Leg: Rationale and Indications. J Vasc Surg 2010. [DOI: 10.1016/j.jvs.2009.11.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2397
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Chen H, Chen Z, Wu M, Deng S. Screening the Fusarium graminearum inhibitory mutant strain from Bacillus subtilis by atmospheric-pressure plasma jet. J Appl Microbiol 2010; 108:96-103. [DOI: 10.1111/j.1365-2672.2009.04397.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2398
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Yin Z, Ouyang H, Chen H. Simulating Soil Freezing and Thawing of Temperate Desert Ecosystem on the Qinghai-Tibet Plateau. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.proenv.2010.10.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2399
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Yin G, Liang YY, Jiang F, Chen H, Wang P, Note R, Mizuseki H, Kawazoe Y. Polarization-induced switching effect in graphene nanoribbon edge-defect junction. J Chem Phys 2009; 131:234706. [DOI: 10.1063/1.3273312] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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2400
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Zhou X, Hayashi T, Chen H, Hara T, Yokoyama R, Kanematsu M, Hoshi H, Fujita H. Automated measurement of bone-mineral-density (BMD) values of vertebral bones based on X-ray torso CT images. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2009; 2009:3573-6. [PMID: 19964613 DOI: 10.1109/iembs.2009.5334143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Bone is one of the most important anatomical structures in humans and osteoporosis is one of the major public health concerns in the world. Osteoporosis is a main target disease of bone, which can be detected by medical image techniques. The purpose of this study is to develop a fully automated computer scheme to measure bone-mineral-density (BMD) values for vertebral trabecular bones. This scheme will aid osteoporosis diagnosis performed using computer tomography (CT) images. This scheme includes the following processing steps: segmentation of the bone region, recognition of the skeletal structures and measurement of the BMD value in vertebral trabecular bone of each vertebral body. The proposed scheme was applied to 20 X-ray torso CT cases to measure the BMD values for vertebral trabecular bones. The experimental results show that the mean and standard deviation of the difference between the BMD values measured by using the proposed method and those measured using a manual segmentation method were 6.93 mg/cm(3) and 6.82 mg/cm(3) respectively. The accuracy of the proposed scheme satisfied the requirement for a computer-aided system used in osteoporosis diagnosis.
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