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Yang Y, Bai X, Liu H, Li L, Cao C, Ge L. Novel mutations of cathepsin C gene in two Chinese patients with Papillon-Lefèvre syndrome. J Dent Res 2007; 86:735-8. [PMID: 17652201 DOI: 10.1177/154405910708600809] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Papillon-Lefèvre syndrome (PLS) is an inherited human disease characterized by early-onset periodontitis and palmoplantar hyperkeratosis. Mutations of the lysosomal protease cathepsin C (CTSC) gene have been shown to be the genetic cause of Papillon-Lefèvre syndrome. There are several case reports in China, while there has been no study on the genetic analysis of PLS. We studied two Chinese patients carrying Papillon-Lefèvre syndrome and showing premature tooth loss and palmoplantar hyperkeratosis. Mutation screening and sequence analysis of the CTSC gene revealed a compound heterozygous mutation (c.415 G>A and c.778 T>C) in one patient, and two novel compound heterozygous mutations (c.851G>A and c.112delCCTG) in the other patient. Our novel discovery indicates that the phenotypes observed in these two patients are due to the CTSC gene mutation.
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Pastorello A, Smartt SJ, Mattila S, Eldridge JJ, Young D, Itagaki K, Yamaoka H, Navasardyan H, Valenti S, Patat F, Agnoletto I, Augusteijn T, Benetti S, Cappellaro E, Boles T, Bonnet-Bidaud JM, Botticella MT, Bufano F, Cao C, Deng J, Dennefeld M, Elias-Rosa N, Harutyunyan A, Keenan FP, Iijima T, Lorenzi V, Mazzali PA, Meng X, Nakano S, Nielsen TB, Smoker JV, Stanishev V, Turatto M, Xu D, Zampieri L. A giant outburst two years before the core-collapse of a massive star. Nature 2007; 447:829-32. [PMID: 17568740 DOI: 10.1038/nature05825] [Citation(s) in RCA: 279] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2006] [Accepted: 04/02/2007] [Indexed: 11/08/2022]
Abstract
The death of massive stars produces a variety of supernovae, which are linked to the structure of the exploding stars. The detection of several precursor stars of type II supernovae has been reported (see, for example, ref. 3), but we do not yet have direct information on the progenitors of the hydrogen-deficient type Ib and Ic supernovae. Here we report that the peculiar type Ib supernova SN 2006jc is spatially coincident with a bright optical transient that occurred in 2004. Spectroscopic and photometric monitoring of the supernova leads us to suggest that the progenitor was a carbon-oxygen Wolf-Rayet star embedded within a helium-rich circumstellar medium. There are different possible explanations for this pre-explosion transient. It appears similar to the giant outbursts of luminous blue variable stars (LBVs) of 60-100 solar masses, but the progenitor of SN 2006jc was helium- and hydrogen-deficient (unlike LBVs). An LBV-like outburst of a Wolf-Rayet star could be invoked, but this would be the first observational evidence of such a phenomenon. Alternatively, a massive binary system composed of an LBV that erupted in 2004, and a Wolf-Rayet star exploding as SN 2006jc, could explain the observations.
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Slobounov S, Ray W, Cao C, Chiang H. Modulation of cortical activity as a result of task-specific practice. Neurosci Lett 2007; 421:126-31. [PMID: 17566654 DOI: 10.1016/j.neulet.2007.04.077] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2007] [Revised: 04/15/2007] [Accepted: 04/20/2007] [Indexed: 10/23/2022]
Abstract
This report aims to examine the role of task-specific practice in the modification of finger force enslaving and to provide empirical evidence for specific EEG frequency bands accompanying such practice may be an end-effectors dependent phenomenon. Nine handed naïve subjects without any training in music participated in a pre- and post-practice sessions separated by 12 practice sessions. Subjects performed a series of isometric force production tasks at 10% and 50% maximum voluntary contraction (MVC) with two rates of force development separately by index and ring fingers. Task-specific practice aimed at suppressing the contribution of neighboring fingers was achieved via visual feedback of force traces. Behavioral data (accuracy of force production and amount of force enslaving) and EEG data in frequency domain obtained via Morlet Wavelet transforms were analyzed. The major behavioral finding is that task-specific practice significantly enhanced the accuracy of force production and individuated control of the "most enslaved" ring finger (P<0.01), but not the index finger. The major novel EEG findings are: (a) modulation of EEG activity within alpha band (8-12 Hz) in the central area of the brain as a function of practice was similar for both fingers and (b) after practice, modulation of EEG activity within gamma (30-50 Hz) band was end-effectors specific. Both behavioral and EEG patterns suggest an effect of task-specific practice on the reduction of force enslaving and that modulation of practice-related plasticity in the human cortex is end-effectors dependent phenomena.
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Cao C, Subhawong T, Geng L, Sekhar K, Kim K, Lu B. 2619. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.1033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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131
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Kim K, Cao C, Albert J, Freeman M, Hallahan D, Lu B. 2505. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.917] [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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132
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Li H, Shinohara ET, Cai Q, Chen H, Courtney R, Cao C, Wang Z, Teng M, Zheng W, Lu B. Plasminogen Activator Inhibitor-1 Promoter Polymorphism is Not Associated With the Aggressiveness of Disease in Prostate Cancer. Clin Oncol (R Coll Radiol) 2006; 18:333-7. [PMID: 16703752 DOI: 10.1016/j.clon.2006.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS PAI-1 (plasminogen activator inhibitors-1) regulates plasminogen activation, and is related to tumour development. This study aims to test whether the promoter polymorphism in the PAI-1 gene is related to the aggressiveness of disease in prostate cancer. MATERIALS AND METHODS In the present study, Taqman SNP genotyping assay was used to detect PAI-1 4G/5G polymorphism in DNA from paraffin-embedded tissues of 98 Caucasian patients with prostate cancer. RESULTS The distribution of the genotypes is in Hardy-Weinberg equilibrium. The genotype had no statistically significant relationship with other prognostic factors. Similar risks for recurrence were seen in individuals with the 4G/4G and 4G/5G genotypes compared to those with 5G/5G genotype (odds ratio [OR] 2.65, 95% CI: 0.41-16.94, P = 0.30; OR = 2.19, 95% CI: 0.38-12.49, P = 0.38). CONCLUSION We concluded that PAI-1 promoter polymorphism is not associated with the aggressiveness of disease in prostate cancer.
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Cao C, Fung SC. Comparison of Heterogeneous Catalyst Activities in Various Reactor Types and Reaction Conditions. Chem Eng Technol 2006. [DOI: 10.1002/ceat.200500318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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134
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Shinohara E, Cao C, Niermann K, Mu Y, Zeng F, Hallahan D, Lu B. mTOR Inhibitors Are Safe and Effective Radiosensitizers in Glioblastoma Multiforme Pre-Clinical Models. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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135
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Kim K, Cao C, Shinohara E, Sekhar K, Ren Z, Cai Q, Zheng W, Lu B. Transcription Factor STAT3, Mediates Expression of Survivin Protein, as Therapeutic Target for Radiation Sensitization in Breast Cancer. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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136
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Kronenberg A, Bossart W, Wuthrich RP, Cao C, Lautenschlager S, Wiegand ND, Mullhaupt B, Noll G, Mueller NJ, Speck RF. Retrospective analysis of varicella zoster virus (VZV) copy DNA numbers in plasma of immunocompetent patients with herpes zoster, of immunocompromised patients with disseminated VZV disease, and of asymptomatic solid organ transplant recipients. Transpl Infect Dis 2005; 7:116-21. [PMID: 16390399 DOI: 10.1111/j.1399-3062.2005.00106.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Varicella zoster virus (VZV) causes significant morbidity and mortality in immunocompromised patients. Subclinical reactivation has been described in solid organ recipients and has been associated with graft versus host disease in bone marrow transplantation. Newer studies assessing the prevalence and impact of subclinical VZV reactivation in solid organ transplant (SOT) recipients are lacking. METHODS AND RESULTS In a first step we developed a highly sensitive quantitative polymerase chain reaction (qPCR) assay for VZV DNA with a detection limit of < or = 20 copies/mL. Using this assay, we retrospectively analyzed plasma samples of different patient groups for VZV DNA. VZV DNA was found in 10/10 plasma samples of immunocompetent patients with herpes zoster (VZV copy numbers/mL: mean+/-SEM 1710+/-1018), in 1/1 sample of a human immunodeficiency virus-infected patient with primary VZV disease (15,192 copies/mL) and in 4/4 plasma samples of immunocompromised patients with visceral VZV disease (mean of first value 214,214+/-178,572). All 108 plasma samples of asymptomatic SOT recipients off any antiviral therapy, randomly sampled over 1 year, were negative for VZV DNA. CONCLUSION Our qPCR assay proved to be highly sensitive (100%) in symptomatic VZV disease. We did not detect subclinical reactivation in asymptomatic SOT recipients during the first post-transplant year. Thus, subclinical VZV reactivation is either a rare event or does not exist. These data need to be confirmed in larger prospective trials.
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O'Hara R, Schröder CM, Kraemer HC, Kryla N, Cao C, Miller E, Schatzberg AF, Yesavage JA, Murphy GM. Nocturnal sleep apnea/hypopnea is associated with lower memory performance in APOE ε4 carriers. Neurology 2005; 65:642-4. [PMID: 16116137 DOI: 10.1212/01.wnl.0000173055.75950.bf] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The authors investigated the relationship between obstructive sleep apnea/hypopnea (OSAH) and cognition in 36 older adults, 18 APOE ε4 carriers, and 18 non-carriers. Greater numbers of respiratory events negatively impacted memory function in ε4 carriers only. This is the first study to provide preliminary evidence for a negative interaction of APOE ε4 and OSAH on memory in older adults, which may have important implications for treating cognitive decline and delaying dementia onset.
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138
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Cao C, Wang Y. Kinetic Analysis of Complex Reactions Using FEMLAB. Chem Eng Technol 2005. [DOI: 10.1002/ceat.200500027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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139
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Cao C, Frey P, Forster A, Weishaupt D, Kempf W, Furrer J. [Arthralgia, eosinophilia, proteinuria and diuretics-resistant leg edemas]. PRAXIS 2004; 93:2013-2016. [PMID: 15603313 DOI: 10.1024/0369-8394.93.48.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We report the case of a patient with eosinophilic fasciitis, a rare disease related to systemic sclerodermia and other fibrosing disorders. An involvement of the kidneys--like in this patient with proteinuria and hypoproteinemia--has been described in the literature but is very rare. We discuss diagnostic procedures and novel therapeutic options as combination therapies with steroids, methotrexate and ciclosporine A.
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Manoutcharian K, Acero G, Munguia ME, Becerril B, Massieu L, Govezensky T, Ortiz E, Marks JD, Cao C, Ugen K, Gevorkian G. Human single chain Fv antibodies and a complementarity determining region-derived peptide binding to amyloid-beta 1–42. Neurobiol Dis 2004; 17:114-21. [PMID: 15350972 DOI: 10.1016/j.nbd.2004.06.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2004] [Revised: 06/07/2004] [Accepted: 06/10/2004] [Indexed: 11/28/2022] Open
Abstract
A library of phage-displayed human single-chain Fv (scFv) antibodies was selected against the human amyloid-beta peptide (Abeta42). Two new anti-Abeta42 phage-displayed scFvs antibodies were obtained, and the sequences of their V(H) and Vkappa genes were analyzed. A synthetic peptide based on the sequence of Ig heavy chain (V(H)) complementarity-determining region (HCDR3) of the clone with the highest recognition signal was generated and determined to bind to Abeta42 in ELISA. Furthermore, we showed for the first time that an HCDR3-based peptide had neuroprotective potential against Abeta42 neurotoxicity in rat cultured hippocampal neurons. Our results suggest that not only scFvs recognizing Abeta42 but also synthetic peptides based on the V(H) CDR3 sequences of these antibodies may be novel potential candidates for small molecule-based Alzheimer's disease (AD) therapy.
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141
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Cao C, Mu Y, Hallahan D, Lu B. Radiation sensitization of lung cancer through inhibition of survivin and XIAP. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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142
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Mu Y, Cao C, Hallahan D, Lu B. Radiation sensitization of glioma via targeting the mtor cell survival pathway. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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143
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Krieger MJB, Jahan N, Riehle MA, Cao C, Brown MR. Molecular characterization of insulin-like peptide genes and their expression in the African malaria mosquito, Anopheles gambiae. INSECT MOLECULAR BIOLOGY 2004; 13:305-315. [PMID: 15157231 DOI: 10.1111/j.0962-1075.2004.00489.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Of the seven genes encoding insulin-like peptides (ILPs) in the mosquito, Anopheles gambiae, four are arrayed proximally as duplicate pairs on chromosome three. Amino acid substitutions encoded in the duplicate genes occur in the C peptide and not the B and A peptides. Except for one duplicated gene, sequence-specific transcripts for all other AgamILPs were obtained from female mosquitoes. Transcript expression of each AgamILP was determined by RT-PCR in the head, thorax, and abdomen of all life stages and both sexes of this mosquito. Two AgamILPs were ubiquitously expressed, suggesting a growth factor function, whereas the other AgamILPs were expressed primarily in heads, as confirmed by the immunostaining of ILPs in the neurosecretory cells of female brains, thus indicating a hormonal function.
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Manoutcharian K, Acero G, Munguia ME, Montero JA, Govezensky T, Cao C, Ugen K, Gevorkian G. Amyloid-beta peptide-specific single chain Fv antibodies isolated from an immune phage display library. J Neuroimmunol 2003; 145:12-7. [PMID: 14644026 DOI: 10.1016/j.jneuroim.2003.08.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A single-chain fragment variable (scFv) antibody library displayed on phage was constructed using spleen cells from mice immunized with human amyloid-beta peptide (Abeta42). This first anti-Abeta42 scFv immune antibody library was selected against human Abeta42. A number of positive clones were obtained, and sequences of VH and Vkappa genes were analyzed using ExPASy and BLAST computer tools. This analysis revealed that only two unique clones with identical VH and Vkappa complementarity determining region (CDR) (except HCDR2) and identical germline genes were selected, indicating that oligoclonal immune response was occurring in Abeta42-immunized mice. Abeta42-specific scFv antibodies selected from this first immune anti-Abeta42 phage antibody library may be an important tool for the development of therapeutic molecules for Alzheimer's disease (AD).
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145
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Tachi Y, Shimpuku H, Nosaka Y, Kawamura T, Shinohara M, Ueda M, Imai H, Ohura K, Sun J, Meng H, Cao C. Association of vitamin D receptor gene polymorphism with periodontal diseases in Japanese and Chinese. NUCLEIC ACIDS RESEARCH. SUPPLEMENT (2001) 2003:111-2. [PMID: 12836289 DOI: 10.1093/nass/1.1.111] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
We examined whether polymorphisms in the vitamin D receptor (VDR) gene are associated with the incidence of adult periodontitis (AP) and early-onset periodontitis (EOP) in case-controlled studies of Japanese and Chinese subjects. Restriction fragment length polymorphisms in the VDR gene detected by digestion with Taq I were found to be significantly associated with the occurrence of AP or EOP, suggesting that the VDR genotype a risk factor for periodontitis.
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146
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Dever TE, Roll-Mecak A, Choi SK, Lee JH, Cao C, Shin BS, Burley SK. Universal translation initiation factor IF2/eIF5B. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 2003; 66:417-24. [PMID: 12762044 DOI: 10.1101/sqb.2001.66.417] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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147
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Cao C. Chemical cross-linking modification of 6FDA-2,6-DAT hollow fiber membranes for natural gas separation. J Memb Sci 2003. [DOI: 10.1016/s0376-7388(03)00080-2] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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148
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Yan L, Wen H, Zhong Y, Cao C. [Intermittent-pulse treatment of onychomycosis with orally administered itraconazole]. HUNAN YI KE DA XUE XUE BAO = HUNAN YIKE DAXUE XUEBAO = BULLETIN OF HUNAN MEDICAL UNIVERSITY 2002; 24:71-3. [PMID: 11938747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Fifty-four patients received an intermittent regimen of itraconazole (26 of them were finger onychomycosis and 28 toe onychomycosis) and were followed-up for nine months. The result showed that the clinical cure rate of fingernails was 88.5% and the mycologic cure rate was 96.4%, while the clinical cure rate of toes was 82.1% and the mycologic cure rate was 96.4%. Few adverse events were observed by 7.4%, just like nausea, gastric discomfort etc. It suggests that the pulse administration system is highly effective and has a few side-effects.
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Roll-Mecak A, Cao C, Dever TE, Burley SK. X-ray structures of the universal translation initiation factor IF2/eIF5B: conformational changes on GDP and GTP binding. Acta Crystallogr A 2002. [DOI: 10.1107/s0108767302085288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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150
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Cao C, Sha Y, Meng H, Kang J, Yeh CH, Chyon HY, Winston JL. A four-day study to evaluate the anti-plaque efficacy of an experimental triclosan-containing dentifrice. THE JOURNAL OF CLINICAL DENTISTRY 2002; 12:87-91. [PMID: 11507921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Four-day, non-brushing studies have been used successfully to demonstrate the anti-plaque efficacy of triclosan-containing dentifrices. The treatment effects observed are variable, likely due to differences in formulation, study design and measurement techniques. This randomized, double-blind crossover study was conducted to evaluate the anti-plaque efficacy of an experimental, multiple-benefit, triclosan-containing dentifrice versus two currently marketed sodium fluoride dentifrices in a four-day, lingual-brushing model on subjects in Beijing. People's Republic of China. Subjects brushed the lingual surfaces for 30 seconds, and before expectorating, swished the saliva/dentifrice slurry over the buccal surfaces for an additional 30 seconds. This procedure was repeated. Subjects performed their assigned brushing regimen twice daily for four days under supervision. On Day 5, plaque was measured using the Turesky Modification of the Quigley-Hein Plaque Index. There were highly significant treatment effects in favor of the experimental triclosan-containing dentifrice for whole mouth, buccal and lingual sites when compared to either of the sodium fluoride dentifrices (p < 0.0001).
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