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Wu W, Lv J, Liu J, Yan B, Feng Y, Xu A, Zhang L. Persistence of immune memory among adults with normal and high antibody response to primary hepatitis B vaccination: Results from a five-year follow-up study in China. Hum Vaccin Immunother 2018; 14:2485-2490. [PMID: 29993330 DOI: 10.1080/21645515.2018.1477911] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Immune memory after hepatitis B vaccination among adults is still under investigation. In this study, adults who had normal and high antibody response to the primary series of hepatitis B vaccination (HepB) were followed up at 5 years after the primary immunization. A booster dose was given to those who had low hepatitis B surface antibody (anti-HBs) titers, defined as anti-HBs levels < 10 mIU/mL. Blood samples were collected at two weeks after the booster and anti-HBs levels were measured. We assumed those with ant-HBs levels > = 10 mIU/mL after the booster had anamnestic response. In total, 242 persons completed the booster and the anti-HBs test. The anamnestic response rate was 99.59% (241/242) and geometric mean concentration (GMC) of anti-HBs after the booster was 2989 mIU/mL (95% CI: 255, 35085). Anti-HBs titer after the booster dose had a positive correlation with anti-HBs titers measured right after the primary immunization as well as anti-HBs titers 5 years later just before the booster. After the booster, no significant difference was found in anti-HBs titers between participants who were immunized with the 10μg HepB vaccine and those with the 20μg vaccine. Multivariable analysis showed that 1) vaccine brand used for the primary vaccination, 2) anti-HBs titers after primary vaccination and 3) anti-HBs titers before the booster dose were independently associated with the anti-HBs titers after the booster 1) β = -0.21, 95% CI: -0.33, -0.09, P = 0.001; 2) β = 0.07, 95% CI: 0.05, 0.09, P < 0.001; 3) β = 0.04, 95% CI: 0.02, 0.07, P < 0.001). In summary, anamnestic response exists among almost all adults at five years after HepB primary immunization. Vaccine brand used for primary vaccination, initial anti-HBs titers after primary immunization and anti-HBs titers before the booster were the independent predictive factors of HepB anamnestic response titers.
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Guo J, Zhou Q, Zhang R, Zhang C, Xuan Z, Cai J, Zeng X, BIN B, Chen W, Wang F, Qiu J, Yan B, Gao Q, Zhang X, Liu Y. 142 Efficacy and safety of traditional Chinese medicine Qiaoshao Formula combined with Dapoxetine in the treatment of premature ejaculation in Chinese men: a real-world study. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.144] [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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Chew K, Lee C, Cross G, Lum L, Yan B, Jureen R. Culture-confirmed cryptococcal meningitis not detected by Cryptococcus PCR on the Biofire meningitis/encephalitis panel®. Clin Microbiol Infect 2018; 24:791-792. [DOI: 10.1016/j.cmi.2018.02.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 02/14/2018] [Accepted: 02/16/2018] [Indexed: 10/17/2022]
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Guo J, Wang F, Geng Q, Gao Q, Han Q, Yan B, Zhang J, Zhang X, Yu G, Zeng Y, Liu Y. 561 Analysis of unsuccessful treatment of lifelong premature ejaculation with dapoxetine. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.467] [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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Wang ZL, Zhang QH, Li MC, Yan B, Wei TT, Peng SY, Li P, Cao LJ. [The impact of resection of skull base tumor via an endoscopic endonasal approach on the visual function of vision impaired patients and the analysis of factors affecting their visual recovery]. ZHONGHUA ER BI YAN HOU TOU JING WAI KE ZA ZHI = CHINESE JOURNAL OF OTORHINOLARYNGOLOGY HEAD AND NECK SURGERY 2018; 53:244-250. [PMID: 29747247 DOI: 10.3760/cma.j.issn.1673-0860.2018.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the visual outcomes of patients with visual impairment after resecting skull base tumor via an endoscopic endonasal approach, and to analyze the factors affecting visual recovery. Methods: One hundred and fifty-three patients with skull base tumor who suffered from preoperative visual impairment from Skull Base Surgery Center of Xuanwu Hospital were operated through an endoscopic endonasal approach. Both preoperative and postoperative visual function outcomes as well as factors that might have affected their visual recovery were analyzed retrospectively by Chi square test and Logistic regression analysis. Results: Complete resection was achieved in 85.6% of the patients using this technique. The rate of postoperative visual recovery in the female group (86.1%) was higher than that in the male group (73.9%), the benign group (90.2%) higher than the malignant group (20.0%), the group without optic atrophy (97.1%) higher than the one with (51.2%), and the acute group (96.6%) higher than the chronic group (80.0%). Significant differences were found between the abovementioned groups (χ(2) value was 5.849, 87.860, 79.757, 4.745, respectively, all P<0.05). The degree of optic atrophy and the property of tumors were significantly associated with visual improvement after treatment (Wold χ(2) value was 18.597 and 35.623, all P<0.001). Conclusions: Our results indicate that endoscopic endonasal surgery shows its ability both to resect skull base tumors and to improve visual function in the majority of patients. The timing of treatment for patients suffered from preoperative visual impairment should be selected in early stage before optic atrophy occurs.
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Wilson A, Jansen LE, Rose RV, Gregor JC, Ponich T, Chande N, Khanna R, Yan B, Jairath V, Khanna N, Sey M, Beaton M, McIntosh K, Teft WA, Kim RB. Letter: predicting azathioprine-associated pancreatitis in IBD-phenotype or genotype? Authors' reply. Aliment Pharmacol Ther 2018. [PMID: 29512906 DOI: 10.1111/apt.14562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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Wang S, Chu T, Zhang B, Han B, Yan B, Qiao R. 162P Responses to EGFR TKIs and ALK TKIs in advanced NSCLC patients harboring concomitant EGFR and ALK alterations. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30436-2] [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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Zhang L, Yan B, Lv J, Liu J, Wu W, Feng Y, Xu A. Antibody response to hepatitis B vaccine is independently associated with hepatitis B breakthrough infection among adults: Results from a three-year follow-up study in China. Vaccine 2018; 36:2207-2212. [PMID: 29548609 DOI: 10.1016/j.vaccine.2018.02.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/04/2018] [Accepted: 02/06/2018] [Indexed: 02/02/2023]
Abstract
Hepatitis B breakthrough infection (HBBI) and its risk factors are rarely reported among adults in China. In 2009-2010 in three townships of China, hepatitis B vaccine (HepB) administration and anti-HBs detection after HepB were conducted among the residents aged 18-59 years. HBsAg, anti-HBs and anti-HBc were detected for these vaccinees in 2013. A total of 252 out of 4701 vaccinees turned to be positive for anti-HBc in 2013, but nobody was positive for HBsAg. The HBBI rate was 5.36% (95% CI 4.73, 6.04). The highest rate was found in age-group of 18-29 years (7.33%, 95% CI: 5.31, 9.82). The rate was significantly different by the residential townships (P < 0.001) and by the antibody response to HepB (P = 0.003). Multivariate analysis showed that anti-HBs response to HepB was the independent risk factor of HBBI. The study documents the association between hyporesponse to HepB and HBBI among adults. It also suggests more attention should be given to new HBV infection among young adults.
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Perera S, Warner A, Almotasen R, Boldt G, Matsuoka H, Yan B, Sey M, Rahman A, Palma DA, Asfaha S. A95 THE EFFICACY OF SURVEILLANCE COLONOSCOPY ON SURVIVAL IN INFLAMMATORY BOWEL DISEASE ASSOCIATED COLORECTAL CANCER: A SYSTEMATIC REVIEW & META-ANALYSIS. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kwapisz L, Jairath V, Karthik V, Beaton MD, Gregor JC, Khanna R, Ponich T, Sey M, Yan B, Chande N. A145 “REAL WORLD” SAFETY AND EFFECTIVENESS OF VEDOLIZUMAB FOR ULCERATIVE COLITIS: RETROSPECTIVE STUDY FROM A TERTIARY CARE CANADIAN CENTRE. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhu C, Yan B, Asfaha S, Chande N, Ponich T, Gregor JC, Sey M. A41 THE PRESENCE OF MELENA PREDICTS A PROXIMAL BLEEDING SITE AMONG PATIENTS WITH OBSCURE GASTROINTESTINAL BLEEDING: RESULTS OF A RETROSPECTIVE COHORT STUDY. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Alageeli MH, Yan B, Zepeda-Gomez S, Alshankiti S, Stitt L, Thomas BS, Bahreini Z, Homenauth R, Dang T, ROFAIEL R, Al-Zahrani M, Townsend CM, Yoo D, Jarosh J, Kloc M, Smith A, Singh C, Luhoway J, Merotto L, Gilani O, Friedland J, Sey M. A217 EXTERNAL VALIDATION OF THE PARK SCORE FOR BOWEL PREPARATION CLEANLINESS DURING CAPSULE ENDOSCOPY. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gregor H, Yan B, Gregor JC, Sey M. A319 A NOVEL METHOD FOR PEG-J TUBE INSERTION USING SINGLE BALLOON ENTEROSCOPY AND THE WEDGE TECHNIQUE. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Wilson A, Jansen LE, Rose RV, Gregor JC, Ponich T, Chande N, Khanna R, Yan B, Jairath V, Khanna N, Sey M, Beaton M, McIntosh K, Teft WA, Kim RB. HLA-DQA1-HLA-DRB1 polymorphism is a major predictor of azathioprine-induced pancreatitis in patients with inflammatory bowel disease. Aliment Pharmacol Ther 2018; 47:615-620. [PMID: 29270995 DOI: 10.1111/apt.14483] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/15/2017] [Accepted: 12/03/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND Azathioprine (AZA)-induced pancreatitis is an unpredictable and dose-independent adverse event affecting 2%-7% of patients with inflammatory bowel disease (IBD) patients treated with AZA. There are no tools in clinical practice to identify at-risk individuals; however, a genome wide association study (GWAS) identified a strong association between the Class II HLA gene region polymorphism (rs2647087) and thiopurine-induced pancreatitis. AIM To independently confirm the findings of the GWAS in an IBD cohort, to evaluate its utility in clinical practice and to offer a novel AZA treatment algorithm for IBD based on pharmacogenomic principles. METHODS A retrospective cohort study evaluated 373 AZA-exposed IBD patients from a tertiary care academic centre in London, Canada. Due to the limited number of patients taking mercaptopurine (MP), such patients were not included this cohort. All subjects underwent screening for the single nucleotide polymorphism (SNP) rs2647087 mapped to the HLA-DQA1*02:01-HLA-DRB1*07:01 haplotype and were sub-divided based on the presence (n = 13) or absence (n = 360) of an AZA-induced pancreatitis diagnosis. The risk of AZA-induced pancreatitis was assessed based on rs2647087 genotype. RESULTS The risk of pancreatitis during AZA-therapy was highly predictable and genotype dependent: 0.53% for wild type (A/A), 4.25% (OR = 4.19, 95% CI 1.02-36.45, P = 0.044) for heterozygous (A/C), and 14.63% (OR = 15.83, 95% CI 3.80-145.26, P = 0.0001) for homozygous variant (C/C) patients. CONCLUSIONS The class II HLA region (at rs2647087) is an important marker of AZA-induced pancreatitis risk. We propose a simple and clinically implementable algorithm based on rs2647087 and TPMT genotypes for AZA selection and dosing for patients with IBD.
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Wilson A, Jansen L, Rose R, Gregor JC, Ponich T, Chande N, Khanna R, Yan B, Jairath V, Khanna N, Sey M, Beaton MD, McIntosh K, Teft W, Kim R. A97 HLA-DQA1-HLA-DRB1 POLYMORPHISM IS A MAJOR PREDICTOR OF AZATHIOPRINE-INDUCED PANCREATITIS IN PATIENTS WITH INFLAMMATORY BOWEL DISEASE. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yan B, Zhang L, Gong L, Lv J, Feng Y, Liu J, Song L, Xu Q, Jiang M, Xu A. Hepatitis E Virus in Yellow Cattle, Shandong, Eastern China. Emerg Infect Dis 2018; 22:2211-2212. [PMID: 27869603 PMCID: PMC5189148 DOI: 10.3201/eid2212.160641] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Lowres N, Chao T, Chen S, Chen Y, Diederichsen A, Fitzmaurice D, Gomez-Doblas J, Harbison J, Hobbs F, Kaasenbrood F, Lee V, Lindholt J, Lip G, Mairesse G, McManus D, Muñiz García J, Orchard J, Pérula De Torres L, Proietti M, Rioboó E, Roalfe A, Schnabel R, Smyth B, Soni A, Tieleman R, Wang J, Wild P, Yan B, Freedman B. High Stroke Risk of Patients Aged ≥65 Years with Screen-Detected Atrial Fibrillation: Collaboration and Meta-Analysis of 15 Screening Studies. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Lo S, Wu E, Yan B, Harding S, Lim S, Lei G, Chen J, Qian J, Lee S, Kao H, Tsuchikane E. Percutaneous Coronary Intervention for Chronic Totally Occluded Vessels in the Asia-Pacific Region: Initial Results of Asia-Pacific Chronic Totally Occluded Club Registry. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ng D, Churilov L, Mitchell P, Dowling R, Yan B. The CT Swirl Sign Is Associated with Hematoma Expansion in Intracerebral Hemorrhage. AJNR Am J Neuroradiol 2017; 39:232-237. [PMID: 29217744 DOI: 10.3174/ajnr.a5465] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 09/19/2017] [Indexed: 01/13/2023]
Abstract
BACKGROUND AND PURPOSE Hematoma expansion is an independent determinant of poor clinical outcome in intracerebral hemorrhage. Although the "spot sign" predicts hematoma expansion, the identification requires CT angiography, which limits its general accessibility in some hospital settings. Noncontrast CT, without the need for CT angiography, may identify sites of active extravasation, termed the "swirl sign." We aimed to determine the association of the swirl sign with hematoma expansion. MATERIALS AND METHODS Patients with spontaneous intracerebral hemorrhage between 2007 and 2014 who underwent an initial and subsequent noncontrast CT at a single center were retrospectively identified. The swirl sign, on noncontrast CT, was defined as iso- or hypodensity within a hyperdense region that extended across 2 contiguous 5-mm axial CT sections. RESULTS A total of 212 patients met the inclusion criteria. The swirl sign was identified in 91 patients with excellent interobserver agreement (κ = 0.87). The swirl sign was associated with larger initial hematoma (P < .001) and earlier initial CT (P < .001) and hematoma expansion (P = .028). Multivariable regression modeling demonstrated that if one assumed similar initial hematoma volume, onset-to-first scan, and time between CT scans, the median absolute hematoma growth was 5.77 mL (95% CI, 2.37-9.18 mL; P = .001) and relative growth was 35.6% (95% CI, 18.5%-52.6%; P < .001) higher in patients with the swirl sign compared with those without. CONCLUSIONS The NCCT swirl sign was reliably identified and is associated with hematoma expansion. We propose that the swirl sign be included in risk stratification of intracerebral hemorrhage and considered for inclusion in clinical trials.
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Li Z, Zhang D, Xiong X, Yan B, Xie W, Sheen J, Li JF. A potent Cas9-derived gene activator for plant and mammalian cells. NATURE PLANTS 2017; 3:930-936. [PMID: 29158545 PMCID: PMC5894343 DOI: 10.1038/s41477-017-0046-0] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 10/11/2017] [Indexed: 05/19/2023]
Abstract
Overexpression of complementary DNA represents the most commonly used gain-of-function approach for interrogating gene functions and for manipulating biological traits. However, this approach is challenging and inefficient for multigene expression due to increased labour for cloning, limited vector capacity, requirement of multiple promoters and terminators, and variable transgene expression levels. Synthetic transcriptional activators provide a promising alternative strategy for gene activation by tethering an autonomous transcription activation domain (TAD) to an intended gene promoter at the endogenous genomic locus through a programmable DNA-binding module. Among the known custom DNA-binding modules, the nuclease-dead Streptococcus pyogenes Cas9 (dCas9) protein, which recognizes a specific DNA target through base pairing between a synthetic guide RNA and DNA, outperforms zinc-finger proteins and transcription activator-like effectors, both of which target through protein-DNA interactions 1 . Recently, three potent dCas9-based transcriptional activation systems, namely VPR, SAM and SunTag, have been developed for animal cells 2-6 . However, an efficient dCas9-based transcriptional activation platform is still lacking for plant cells 7-9 . Here, we developed a new potent dCas9-TAD, named dCas9-TV, through plant cell-based screens. dCas9-TV confers far stronger transcriptional activation of single or multiple target genes than the routinely used dCas9-VP64 activator in both plant and mammalian cells.
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Yan B, Wu X. G-CSF induces production of Bv8 in murine bone marrow neutrophils and promotes tumor growth and angiogenesis of U14 murine cervical cancer cell line. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx663.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Liu W, Yan B, An D, Niu R, Tang Y, Tong X, Gong Q, Zhou D. Perilesional and contralateral white matter evolution and integrity in patients with periventricular nodular heterotopia and epilepsy: a longitudinal diffusion tensor imaging study. Eur J Neurol 2017; 24:1471-1478. [PMID: 28872216 DOI: 10.1111/ene.13441] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 08/31/2017] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND PURPOSE This study aimed to assess the evolution of perinodular and contralateral white matter abnormalities in patients with periventricular nodular heterotopia (PNH) and epilepsy. METHODS Diffusion tensor imaging (DTI) (64 directions) and 3 T structural magnetic resonance imaging were performed in 29 PNH patients (mean age 27.3 years), and 16 patients underwent a second scan (average time between the two scans 1.1 years). Fractional anisotropy and mean diffusivity were measured within the perilesional and contralateral white matter. RESULTS Longitudinal analysis showed that white matter located 10 mm from the focal nodule displayed characteristics intermediate to tissue 5 mm away, and normal-appearing white matter (NAWM) also established evolution profiles of perinodular white matter in different cortical lobes. Compared to 29 age- and sex-matched healthy controls, significant decreased fractional anisotropy and elevated mean diffusivity values were observed in regions 5 and 10 mm from nodules (P < 0.01), whilst DTI metrics of the remaining NAWM did not differ significantly from controls. Additionally, normal DTI metrics were shown in the contralateral region in patients with unilateral PNH. CONCLUSIONS Periventricular nodular heterotopia is associated with microstructural abnormalities within the perilesional white matter and the extent decreases with increasing distance from the nodule. In the homologous contralateral region, white matter diffusion metrics were unchanged in unilateral PNH. These findings have clinical implications with respect to the medical and surgical interventions of PNH-related epilepsy.
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Gu QL, Han Y, Lan YM, Li Y, Kou W, Zhou YS, Hai XJ, Yan B, Ci CH. Association between polymorphisms in the APOB gene and hyperlipidemia in the Chinese Yugur population. ACTA ACUST UNITED AC 2017; 50:e6613. [PMID: 28902930 PMCID: PMC5597288 DOI: 10.1590/1414-431x20176613] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 07/25/2017] [Indexed: 11/22/2022]
Abstract
We investigated the influence of apolipoprotein B gene (APOB) variants on the risk of hyperlipidemia (HL) in 631 middle-aged and elderly members of the Chinese Yugur population (HL, n=336; normolipidemia, n=295). APOB polymorphisms were identified using mass spectrometry, and five single nucleotide polymorphisms (rs1042034, rs2163204, rs512535, rs676210, and rs679899) and serum lipids were further analyzed. rs1042034 and rs676210 were significantly associated with HL (P<0.05). Compared with the GG or AA genotype, individuals with AG and AG+AA in rs1042034 and with AG and AG+GG in rs676210 had a 1.67-fold (95%CI=1.20-2.33),1.63-fold (95%CI=1.19-2.24), 1.72-fold (95%CI=1.24-2.40), and 1.67-fold (95%CI=1.21-2.291) increased risk of high HL, respectively. rs2163204 was in strong linkage disequilibrium with rs1042034, rs676210, and rs679899, and strong disequilibrium was observed between rs1042034 and rs676210 (D'>0.9). Compared with the GTGAA haplotype, haplotypes ATGGA and ATAGG were more strongly associated with HL [odds ratio (OR)=1.46, 95%CI=0.02-2.11; OR=1.63, 95%CI=1.03-2.60, respectively]. The risk factors age (P=0.008), body mass index (P<0.0001), GA+GG genotype in rs676210 (P=0.009), and alcohol consumption (P=0.056) contributed strongly to HL development. The A allele of rs1042034 and the G allele of rs676210 may thus predispose middle-aged and elderly members of the Chinese Yugur population to HL in combination with other genetic or nutritional factors, and could be used as new genetic markers for HL screening.
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Liu J, Qiu S, Lu J, Yan B, Feng Y, Li L, Zhang G, Wang F, He P, Fang X, Hu Z, Liang X, Xu A, Zhang L. Robust Antibody and Cytokine Response to Hepatitis B Vaccine Among Not-in-Treatment Patients With Chronic Hepatitis C: An Open-Label Control Study in China. J Infect Dis 2017; 216:327-335. [PMID: 28859430 DOI: 10.1093/infdis/jix295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 06/21/2017] [Indexed: 01/05/2023] Open
Abstract
Background Hepatitis B vaccine is an effective measure to prevent hepatitis B virus infection. Whether chronic hepatitis C virus (HCV) infection decreases humoral and cell-mediated immunity responses to hepatitis B vaccination is still controversial. Methods Patients with chronic HCV infection who were not in treatment and healthy controls, matched at a 1:2 ratio for community, sex, and age (within 5 years), were identified from a community-based screening. All participants received 3 doses of hepatitis B vaccine. Antibody to hepatitis B surface antigen was tested 1 month after the third vaccine dose and was compared between 2 groups. Spot-forming cells (SFCs) of interferon γ and interleukin 2, 4, 5, and 6 were counted by means of enzyme-linked immunospot, and SFC counts were compared between the 2 groups. Results The rates of nonresponse and low, normal, and high response were 3.80%, 10.13%, 45.57%, and 40.50% respectively, in the HCV group, and the corresponding rates in the healthy control group were 1.26%, 10.13%, 39.24%, and 49.37% (all P > .05). There were no significant differences in SFC counts between the 2 groups for interferon γ or interleukin 2, 4, or 5 (all P > .05). Conclusions This study provided preliminary evidence of the good immunogenicity and safety of hepatitis B vaccination among patients in China with chronic hepatitis C who are not in treatment. Clinical Trials Registration NCT 02898922.
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Luo WP, Du YF, Huang J, Huang WQ, Xu M, Yan B, Mo XF, Zhang CX. [Effect of peripheral bloodgenomic DNA methylation on the relationship between methyl donor status and risk of breast cancer]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2017; 38:537-541. [PMID: 28468078 DOI: 10.3760/cma.j.issn.0254-6450.2017.04.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Objective: To explore the effect of peripheral blood genomic DNA methylation on the relationship between methyl donor status and risk of breast cancer. Methods: A case-control study was conducted. Each three hundred breast cancer cases and controls were consecutively recruited. Food frequency questionnaire was used to collect dietary information. Amounts on folate, methionine, choline and betaine intake were calculated. Blood samples were collected for DNA extraction. Peripheral blood genomic DNA methylation was measured by using the Methyl Flash(TM) Methylated DNA Quantification Kit. Pathway analysis was used to examine the effect of genomic DNA methylation on the relations between methyl donor status and risk of breast cancer. Results: The genome DNA methylation rates were 0.46%±0.25% and 0.53%±0.34%, respectively on both cases and controls, with differences statistically significant (P<0.01). Results from the pathway analysis, results showed that methionine consumption was related to genomic DNA methylation (β=0.065, P<0.05) while genomic DNA methylation was related to the risk of breast cancerk (β=-0.027, P<0.05), respectively. Conclusions: The level of peripheral blood genomic DNA methylation in breast cancer cases was significantly lower than that in the controls. Genomic DNA methylation seemed to have played a mediated role between methionine and the risk of breast cancer.
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