126
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Palmer J, Boggs D, Krishnan S, Hu F, Rosenberg L. Soft Drink Consumption and Risk of Type 2 Diabetes in African American Women. Am J Epidemiol 2006. [DOI: 10.1093/aje/163.suppl_11.s181-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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127
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Hu F, Chan KC, Qu NS. Effect of magnetic field on electrocodeposition behavior of Ni–SiC composites. J Solid State Electrochem 2006. [DOI: 10.1007/s10008-006-0103-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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128
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Dowling P, Hu F, Johnson L, Kennedy K, Barnes C. Indoor Fungal Spore Levels Before and After Simple Home Repair and Asthma Education. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.108] [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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129
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Jones B, Barnes C, Portnoy J, Hu F. Diurnal Variation of Airborne Ragweed Pollen in A Metropolitan Area - An 8 Year Perspective. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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130
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Hu F, Johnson L, Kennedy K, Portnoy J, Barnes C. Indoor Spore Levels in Asthmatic and Control Homes. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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131
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Fung T, McCullough M, Holmes M, Hu F, Hankinson S. 027: Dietary Patterns, the Alternate Healthy Eating Index and Plasma Levels of Sex Hormones in Postmenopausal Women. Am J Epidemiol 2005. [DOI: 10.1093/aje/161.supplement_1.s7b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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132
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Taylor S, Ho C, Hu F, Barnett J, Melosky B. Anemia and FOLFOX chemotherapy for colorectal carcinoma. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.3684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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133
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Hamata L, Hsieh T, de Lemos M, Levin A, Swenerton K, Vu T, Hu F, Conklin J, Taylor S, Do T. Evaluation of Cockcroft-Gault (CG) and abbreviated Modified Diet in Renal Disease Study (MDRD) formulas for carboplatin dosing in gynecological malignancies. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.2078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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134
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Hu F, Wang X, Pace TWW, Wu H, Miller AH. Inhibition of COX-2 by celecoxib enhances glucocorticoid receptor function. Mol Psychiatry 2005; 10:426-8. [PMID: 15700047 PMCID: PMC1237050 DOI: 10.1038/sj.mp.4001644] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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135
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Huang MH, Bahl JJ, Wu Y, Hu F, Larson DF, Roeske WR, Ewy GA. Neuroendocrine properties of intrinsic cardiac adrenergic cells in fetal rat heart. Am J Physiol Heart Circ Physiol 2005; 288:H497-503. [PMID: 15458949 DOI: 10.1152/ajpheart.00591.2004] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Intrinsic cardiac adrenergic (ICA) cells in developing rat heart constitute a novel adrenergic signaling system involved in cardiac regulation. Regulatory mechanisms of ICA cells remain to be defined. Immunohistochemical study of fetal rat hearts demonstrated ICA cells with catecholamine biosynthetic enzyme tyrosine hydroxylase (TH) and phenylethanolamine N-methyltransferase (PNMT). The mRNA of TH and PNMP was also detected in fetal rat hearts before sympathetic innervation. Immunoreactivity of norepinephrine transporter (NET) was localized to ICA cells in rat heart tissue and primary cell culture. For the functional study, the activity of intracellular Ca2+concentration ([Ca2+]i) transients was quantified by a ratio fluorescent spectrometer in cultured ICA cells and myocytes. ICA cells generated spontaneous [Ca2+]itransients that were eliminated by tetrodotoxin or Ca2+-free solutions and showed greatly reduced amplitude with the addition of L-type Ca2+channel blocker nifedipine. [3H]norepinephrine studies demonstrate release and uptake of norepinephrine. Functional interaction between catecholamines produced by the ICA cells and cocultured myocytes was evident by the effect of the β-adrenergic blocker atenolol eliciting a dose-dependent reduction in the amplitude and frequency of [Ca2+]itransients of beating myocytes. Hypoxia inhibited [Ca2+]itransient activity of ICA cells, which subsequently produced a reoxygenation-mediated rebound augmentation of [Ca2+]itransients. We conclude that ICA cells are capable of catecholamine synthesis, release, and uptake. They generate spontaneous [Ca2+]itransient activity that can be regulated by oxygen tension. ICA cells may provide an alternative adrenergic supply to maintain cardiac contractile and pacemaker function at rest and during stress in the absence of sympathetic innervation.
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136
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Barnes C, Hu F, Pacheco F, Portnoy J. Total seasonal ragweed is inversely correlated with seasonal rainfall. J Allergy Clin Immunol 2005. [DOI: 10.1016/j.jaci.2004.12.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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137
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Linetsky M, Hill JMW, LeGrand RD, Hu F. Dehydroalanine crosslinks in human lens. Exp Eye Res 2004; 79:499-512. [PMID: 15381034 DOI: 10.1016/j.exer.2004.06.026] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2004] [Accepted: 06/22/2004] [Indexed: 11/15/2022]
Abstract
This study was conducted to develop a methodology for the purification and detection of histidinoalanine, lanthionine and lysinoalanine in the lens tissue. Cataractous and aged human lens proteins were hydrolysed and fractionated by using anion-exchange chromatography. The fraction containing the bulk of dehydroalanine crosslinks was derivatized with dansyl chloride and then separated and quantified by means of RP-HPLC. The spectral and chromatographic properties of all three substances purified and quantified in this study were identical to those of their synthesized counterparts. Histidinoalanine and lanthionine were the most abundant dehydroalanine crosslinks in both water-soluble and water-insoluble lens proteins. Histidinoalanine levels in water-soluble proteins from the cataractous lenses of Indian origin were 6.2-fold higher than those in water-soluble proteins from normal lenses (1.68+/-0.75 vs 0.26+/-0.06 nmol/mg protein; p<0.001). In water-insoluble proteins, they were 2.2-fold higher in cataractous lenses compared with normal lenses (1.59+/-0.76 vs 0.73+/-0.17 nmol/mg protein; p<0.01). Lanthionine levels were significantly higher in water-insoluble proteins of cataractous lenses when compared to non-cataractous lenses (2.5+/-1.68 vs 0.95+/-0.08 nmol/mg protein; p<0.03). Unlike histidinoalanine, this crosslink appears to accumulate in relatively high concentrations in water-soluble lens proteins; its concentration was 9-fold higher than histidinoalanine from the same proteins (0.26+/-0.06 HAL vs 2.34+/-0.76 LAN nmol/mg protein; p<0.0004). The concentration of lysinoalanine was in the picomolar range and in cataractous lens proteins only.
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138
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Luo JL, Wang NL, Liu GT, Wu D, Jing XN, Hu F, Xiang T. Metamagnetic transition in Na 0.85 CoO2 single crystals. PHYSICAL REVIEW LETTERS 2004; 93:187203. [PMID: 15525203 DOI: 10.1103/physrevlett.93.187203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2004] [Indexed: 05/24/2023]
Abstract
We report the magnetization, specific heat, and transport measurements of a high quality Na(0.85)CoO2 single crystal in applied magnetic fields up to 14 T. At high temperatures, the system is in a paramagnetic phase. It undergoes a magnetic phase transition below approximately 20 K. For the field H||c, the measurement data of magnetization, specific heat, and magnetoresistance reveal a metamagnetic transition from an antiferromagnetic state to a quasiferromagnetic state at about 8 T at low temperatures. However, no transition is observed in the magnetization measurements up to 14 T for H perpendicular c. The low temperature magnetic phase diagram of Na(0.85)CoO2 is determined.
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139
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Wei ZG, Hong FS, Yin M, Li HX, Hu F, Zhao GW, Wong JWC. Off-line separation and determination of rare earth elements associated with chloroplast pigments of hyperaccumulator Dicranopteris dichotoma by normal-phase liquid chromatography and ICP?MS. Anal Bioanal Chem 2004; 380:677-82. [PMID: 15372132 DOI: 10.1007/s00216-004-2757-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2004] [Revised: 07/01/2004] [Accepted: 07/06/2004] [Indexed: 11/30/2022]
Abstract
An off-line normal-phase liquid chromatography-ICP-MS method has been used for separation and determination of the rare earth elements (REE) associated with chloroplast pigments of Dicranopteris dichotoma. The stability of REE-bound pigments was tested, and almost no destruction of REE-bound pigments occurred during the so-called normal-phase liquid chromatography. The accumulated free REE ions on the microcrystalline cellulose column were cleaned by elution with 5 mmol L(-1) 2-ethylhexyl hydrogen 2-ethylhexylphosphonate (P507), to avoid exchange of these free ions with metals from the pigments. When these precautions were taken, the method was applied to the study of REE-bound pigments in D. dichotoma. ICP-MS results showed REE were present in chlorophylls and lutein, although REE concentrations in carotene and pheophytin were both below procedural blank levels. By careful analysis of the eluate fractions containing chlorophyll a it was found that REE-bound chlorophyll a in D. dichotoma was slightly enriched in the fractions with relatively short retention time. Results indicated that the retention time of REE-bound chlorophyll a might be slightly less than that of magnesium chlorophyll a, and REE-bound chlorophylls might be of relatively low polarity in comparison with magnesium bound chlorophylls. This phenomenon could be explained by the special double-decker sandwich-structure of REE-bound chlorophylls, as was reported by us and other authors. On the basis of these results we preferred to consider that REE can replace magnesium in chlorophyll a of D. dichotoma, and that the role of REE-bound chlorophylls in photosynthesis cannot be neglected. These data might be useful for understanding of both the properties of REE-bound pigments and the effect of REE on plant photosynthesis.
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140
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Taylor SCM, De Lemos ML, Barnett J, Hu F, Oreilly SE. Renal safety with pamidronate (PAM) 1-hour infusion for metastatic breast cancer (MBC) and multiple myeloma (MM): A multi-centre, population-based analysis. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.6042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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141
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Dong S, Dong C, Liu L, Che Y, Sun M, Hu F, Li J, Li Q. Identification of a novel human sand family protein in human fibroblasts induced by herpes simplex virus 1 binding. Acta Virol 2003; 47:27-32. [PMID: 12828340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Studies on interaction between Herpes simplex virus 1 (HSV-1) and human fibroblasts KMB-17 have demonstrated that HSV-1 binding to the cell surface could induce a specific gene response. In this study, the HSV-1 stimulation-related gene 1 (HSRG1), a new so far unknown gene function of cellular response induced by a specific stimulation with HSV-1, was cloned from the cDNA library established from mRNA of early gene response of KMB-17 cells. The gene product consisted of 547 amino acids and had a significant homology, in six eukaryotic species. On the basis of its structure it was identified as a member of the SAND protein family. The HSRG1 protein was fused with glutathione S-transferase (GST) and expressed in Escherichia coli DHPalpha strain under the control of T7 promoter. An antibody to HSRG1 raised in mice was used to detect expression of the HSRG1 protein in KMB-17 cells stimulated by HSV-1 by an immunoprecipitation assay. It was found that the HSRG1 protein was induced in these cells by HSV-1 at high level.
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142
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Liu Y, Yuan HC, Lin DD, Liu YM, Hu F, Zhao GM, Jiang QW, Zhang SJ. [Studies on risk factors for liver fibrosis of schistosomiasis japonica]. ZHONGGUO JI SHENG CHONG XUE YU JI SHENG CHONG BING ZA ZHI = CHINESE JOURNAL OF PARASITOLOGY & PARASITIC DISEASES 2003; 18:18-20. [PMID: 12567465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To explore the risk factors for schistosomal liver fibrosis. METHODS 192 hepatitis-negative patients with schistosomiasis were selected and divided into 3 groups according to the result of B ultrasound examination, that is, grade 2 and 3 fibrosis group(81 patients), grade 1 fibrosis group (61 patients) and control group (non-fibrosis, 50 patiets). The univariate and multivariate ordinal regression model was made to analyse the possibly harmful factors influencing the liver damages of these patients. RESULTS Four factors were found to be positively associated with schistosomal liver fibrosis. They were: number of treatments of schistosomiasis (OR = 1.75), interval of schistosomal infection(OR = 1.40), history of drinking wine (OR = 1.95) and familial history of advanced schistosomiasis (OR = 2.11). CONCLUSION Patients with repeated schistosome infection, long duration of schistosomal infection, long history of drinking and familial history of advanced schistosomiasis had higher risk for liver fibrosis than schistosomiasis patients without these factors.
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Liu Y, Yuan H, Lin D, Hu F, Liu Y, Zhang S, Zhao G, Jiang Q. [Study on family aggregation of cases of advanced schistosomiasis japonica]. ZHONGGUO JI SHENG CHONG XUE YU JI SHENG CHONG BING ZA ZHI = CHINESE JOURNAL OF PARASITOLOGY & PARASITIC DISEASES 2003; 17:149-51. [PMID: 12563832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
AIM To explore the family aggregation of advanced schistosomiasis japonica. METHODS Eighty-one cases of advanced schistosomiasis(AS) and 67 cases of non-advanced schistosomiasis with history of infections in Yushan County, Jiangxi Province were chosen as proband groups and control groups respectively, then grades 1 and 2 relatives of them were investigated on AS. Family aggregation of AS was analyzed through comparing the prevalence rate between the close and distant relatives of probands and controls and fitting the observed distribution of AS cases among the population by zero-truncated Poisson distribution and zero-truncated negative binomial distribution. RESULTS The prevalence rate was higher in the close relatives (Group I relatives) of the probands than in the distant relatives(Group II relatives) of the probands and in the controls' relatives. The observed distribution of AS was beyond the probability of the zero-truncated Poisson distribution, but consistent with the zero-truncated negative binomial distribution. CONCLUSION Family aggregation of advanced schistosomiasis does exist.
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144
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Reddy M, Hu F, Barnes C, Portnoy J. Pollen aeroallergens and total airborne particle counts. J Allergy Clin Immunol 2003. [DOI: 10.1016/s0091-6749(03)80248-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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145
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Pacheco F, Hu F, Barnes C, Portnoy J. Comparison of pre-and post-remediation fungal spore levels. J Allergy Clin Immunol 2003. [DOI: 10.1016/s0091-6749(03)80253-1] [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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146
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Dinakar C, Pacheco F, Hu F, Barnes C, Portnoy J. Exposure and sensitization to airborne fungi in an office environment. J Allergy Clin Immunol 2003. [DOI: 10.1016/s0091-6749(03)80850-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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147
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Yu P, Wei C, Hu F, Gong D, Shi X. [Effects and applications of ascorbic acid on the proliferation of Chlamydia trachomatis]. HUNAN YI KE DA XUE XUE BAO = HUNAN YIKE DAXUE XUEBAO = BULLETIN OF HUNAN MEDICAL UNIVERSITY 2002; 24:12-4. [PMID: 11938727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Two hundred and eighty-eight samples of patients with nongonococcal urethritis (NGU) and prostatitis were detected by cell culture and immunofluorescence assay for Chlamydia trachomatis (CT) and the effects of ascorbic acid(vitC) on the formation rate of inclusion of CT in positive samples were also studied. The results showed that the formation rate of inclusion of CT was 29.5% when the concentration of vitC was 5 micrograms.ml-1. The difference between test group and control group which contained cycloheximide in the media was insignificant (P > 0.05). The results suggested that vitC was a kind of nutrient needed for CT. The proliferation of CT in the cell can be promoted by vitC. We can replace cycloheximide by vitC in McCoy cell culture to detect clinic samples with CT.
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Zheng X, Hu F, Wang W. [The prevalence and mechanism of Helicobacter pylori resistance to clarithromycin in Beijing]. ZHONGHUA YI XUE ZA ZHI 2001; 81:1413-5. [PMID: 11930609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
OBJECTIVE (1) To determine the prevalence of Helicobacter pylori strains resistant to clarithromycin in Peking. (2) To determine the genetic mutation in relation to clarithromycin resistance. METHODS Helicobacter pylori were cultured from gastric biopsies obtained from 89 patients during upper endoscopy. Minimal inhibitory concentrations of clarithromycin were determined by Etest method. Genomic DNA was prepared by the hexadecyltrimethylammonium bromide (CTAB)-phenol extraction method. Mutations in clarithromycin-resistant strains were identified by polymerase chain reaction and restrictions analysis. RESULTS (1) The prevalence of Helicobacter pylori strains resistant to clarithromycin was 13.5% in Beijing. (2) All twelve clarithromycin-resistant strains had the new BsaI site which is characteristic of the A2143G point mutation in 23S rRNA gene, none of the tested twenty-four susceptible strains had the A2142G or A2143G mutation. CONCLUSION The prevalence of clarithromycin-resistant strains was not rare in Beijing. Mutations in 23S rRNA are associated with clarithromycin resistance in Helicobacter pylori.
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149
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Hu F. [Emphasis on immune prevention of Helicobacter pylori infection]. ZHONGHUA YI XUE ZA ZHI 2001; 81:1409-10. [PMID: 11930607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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150
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Hu F, Wang Y, Liu D, Li Y, Qin J, Elledge SJ. Regulation of the Bub2/Bfa1 GAP complex by Cdc5 and cell cycle checkpoints. Cell 2001; 107:655-65. [PMID: 11733064 DOI: 10.1016/s0092-8674(01)00580-3] [Citation(s) in RCA: 203] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
During mitosis, a ras-related GTPase (Tem1) binds GTP and activates a signal transduction pathway to allow mitotic exit. During most of the cell cycle, Tem1 function is antagonized by a GTPase-activating protein complex, Bfa1/Bub2. How the Bfa1/Bub2 complex is regulated is not well understood. We find that Polo/Cdc5 kinase acts upstream of Bfa1/Bub2 in the mitotic exit network. Cdc5 phosphorylates Bfa1 and acts to antagonize Bfa1 function to promote mitotic exit. Bfa1 is regulated by multiple cell cycle checkpoints. The spindle assembly and spindle orientation checkpoints inhibit Bfa1 phosphorylation. DNA damage does not inhibit Bfa1 phosphorylation and instead causes a Rad53- and Dun1-dependent modification of Bfa1. Regulation of Bfa1 may therefore be a key step controlled by multiple checkpoint pathways to ensure a mitotic arrest.
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