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Yu SY, Peng H, Zhu Q, Wu YX, Wu F, Han CR, Yan B, Li Q, Xiang HG. Silencing the long noncoding RNA NORAD inhibits gastric cancer cell proliferation and invasion by the RhoA/ROCK1 pathway. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:3760-3770. [PMID: 31115002 DOI: 10.26355/eurrev_201905_17802] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The current study aimed to examine the role and mechanism of a conserved long noncoding RNA termed NORAD (noncoding RNA activated by DNA damage, also named LINC00657) in gastric cancer (GC) progression. PATIENTS AND METHODS Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was used to determine the expression level of relevant genes in GC cell lines. Cell proliferation was examined by cell counting kit-8 (CCK-8) assays. Cell migration and invasion were detected by transwell migration and invasion assays. Protein levels of the indicated genes were detected by Western blotting. Cell apoptosis was examined by flow cytometry. RESULTS Results showed that NORAD knockdown decreased cell proliferation, migration and invasion but increased cell apoptosis. NORAD knockdown affected the expression of genes related to apoptosis and Epithelial-Mesenchymal Transition (EMT). In addition, NORAD's depletion resulted in reduced Ras Homolog Family Member A (RhoA) and Rho-associated coiled-coil containing protein kinase 1 (ROCK1) expression. Furthermore, NORAD's expression was positively correlated with RhoA and ROCK1 expressions in GC based on The Cancer Genome Atlas (TCGA) database. CONCLUSIONS Our results demonstrate the oncogenic role of NORAD in gastric cancer progression.
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Qi S, Yan B, Liu C, Wang C, Zhang L. Predictive significance of Charcot-Leyden Crystal mRNA levels in nasal brushing for nasal polyp recurrence. Rhinology 2020; 58:166-174. [PMID: 31884512 DOI: 10.4193/rhin19.296] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Tissue eosinophils have been shown to be associated with polyp recurrence in chronic rhinosinusitis with nasal polyps (CRSwNP). We addressed whether the mRNA levels of Charcot-Leyden Crystal (CLC) in nasal brushing samples, a molecule mainly released from activated eosinophils, could serve as an effective non-invasive biomarker to predict polyp recurrence. METHODS A total of 51 patients with CRSwNP completing the postoperative follow-up over a period of 12-18 months were enrolled. Baseline CLC mRNA levels of the nasal brushings collected prior to endoscopic sinus surgery were quantified by quantitative real-time polymerase chain reaction (qRT-PCR). Polyp specimens were collected during surgery and were evaluated for inflammatory cells by histopathologic staining. The patients' baseline characteristics were reviewed and analyzed for associations with recurrence. Logistic regression analysis was performed to determine the predictive factors for polyp recurrence, and receiver operating characteristic (ROC) curves were performed to determine their predictive values. RESULTS Overall, 25/51(49.02%) patients experienced polyp recurrence during the 12-18 months follow-up. The baseline relative CLC mRNA level in nasal brushing samples was significantly increased in patients with recurrence compared to those without recurrence (p.
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Yow KS, Liu X, Chai CN, Tung ML, Yan B, Christopher D, Ong KH, Ooi MG. Relationship of JAK2 (V617F) Allelic Burden with Clinico- Haematological Manifestations of Philadelphia-Negative Myeloproliferative Neoplasms. Asian Pac J Cancer Prev 2020; 21:2805-2810. [PMID: 32986384 PMCID: PMC7779444 DOI: 10.31557/apjcp.2020.21.9.2805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Indexed: 01/10/2023] Open
Abstract
JAK2 (V617F) allelic burden is the main genetic driver behind and a potential differentiator between individual myeloproliferative neoplasm (MPN) subtypes. This study aimed to explore the relationship between JAK2 (V617F) allelic burden, MPN subtypes and their clinico-haematological manifestations in a Singapore-based cohort. Analysis was performed on a retrospectively collected dataset of 128 patients diagnosed with JAK2 (V617F) positive Philadelphia-negative MPNs between 2016 to 2017 in Singapore. Genomic analysis was conducted on blood samples via DNA extraction and Droplet Digital Polymerase Chain Reaction (ddPCR). The mean age was 62.4 (SD=14.1). 85 out of the 128 (66.4%) patients were male. There was a statistically significant difference in allelic burdens between the different MPN disease subtypes χ2(3) = 9.064, p=0.028, with essential thrombocytosis (ET) patients having the lowest mean JAK2 percentage allelic burden (26.5%). Patients with an allelic burden >50% had higher leukocyte counts (MWU 1016.5, p=0.001), haemoglobin levels (MWU 1287.0, p=0.045), lactate dehydrogenase levels (MWU 611.5, p=0.001), and lower platelet levels (MWU 1164.0, p=0.008). Subgroup analysis revealed none of these correlations was significant in the ET subgroup. The results are largely in concordance with previous research in Asian cohorts demonstrating the association between allelic burden and clinico-haematological manifestations of MPN. However, in the ET subgroup, the JAK2 (V617F) allelic burden do not correlate positively for haematological parameters which is only seen in Asian patients.<br />.
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Tan DS, Tan DS, Tan IBH, Yan B, Choo SP, Chng WJ, Hwang WYK. Recommendations to improve the clinical adoption of NGS-based cancer diagnostics in Singapore. Asia Pac J Clin Oncol 2020; 16:222-231. [PMID: 32301274 PMCID: PMC7496576 DOI: 10.1111/ajco.13339] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 03/09/2020] [Indexed: 12/14/2022]
Abstract
Next-generation sequencing (NGS)-based diagnostics have demonstrated clinical utility in predicting improved survival benefits with targeted treatment in certain cancer types, and positive cost-benefit in several healthcare systems. However, clinical adoption in Singapore remains low despite commercial availability of these diagnostics. This expert opinion review examines the key challenges to the clinical adoption of NGS-based diagnostics in Singapore, provides recommendations on impactful initiatives to improve adoption, and also offers practical guidance on specific cancer types in which NGS-based diagnostics are appropriate for use in Singapore. Limited patient affordability is one major challenge to clinical adoption of NGS-based diagnostics, which could be improved by enabling patient access to more funds for specific cancer types with clear benefits. Expert opinion based on current evidence and clinical experience supports the upfront use of hotspot panels in advanced non-small cell lung cancer (NSCLC), metastatic colorectal cancer, advanced and recurrent ovarian cancer, and acute myeloid leukemia. Comprehensive genomic profiling could be considered for upfront use in select patients with NSCLC and ovarian cancer, or in refractory patients with the four cancer types. Wider adoption of NGS-based diagnostics will improve the delivery of cancer care in Singapore and Asia-Pacific, and thus lead to better patient outcomes.
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Tham SM, Lim WY, Lee CK, Loh J, Premkumar A, Yan B, Kee A, Chai L, Tambyah PA, Yan G. Four Patients with COVID-19 and Tuberculosis, Singapore, April-May 2020. Emerg Infect Dis 2020; 26:2764-2766. [PMID: 32667283 PMCID: PMC7588516 DOI: 10.3201/eid2611.202752] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Coronavirus disease (COVID-19) and tuberculosis (TB) developed in 4 foreign workers living in dormitories in Singapore during April–May 2020. Clinical manifestations and atypical radiographic features of COVID-19 led to the diagnosis of TB through positive interferon-gamma release assay and culture results. During the COVID-19 pandemic, TB should not be overlooked.
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Yan B, Chen F, Liu YF, Zhao GF, Zhang YS, Yin SM. [Application of external diaphragm pacemaker combination with high-flow nasal cannula in offline patients with postoperative severe cerebral hemorrhage]. ZHONGHUA YI XUE ZA ZHI 2020; 100:1091-1094. [PMID: 32294874 DOI: 10.3760/cma.j.cn112137-20200217-00307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To investigate the offline clinical effect of external diaphragm pacemaker (EDP) combination with High-flow nasal cannula oxygen therapy in postoperative severe cerebral hemorrhage patients. Methods: A total of 123 severe postoperative severe cerebral hemorrhage patients with tracheotomy and mechanical ventilation (MV) were selected, who were admitted in NICU of PLA Rocket Force Characteristic Medical Center from October 2016 to December 2019. These patients were randomly divided into the High-flow nasal cannula (HFNC) group (n=63) and HFNC+EDP group (n=60). In the HFNC group, the HFNC was given to the patients who were off ventilator. The HFNC+EDP group was added on the basis of treatment in the HFNC group, once a day and 30 minutes each time. Results: Compared to the HFNC group, the oxygenation index (OI) of the HFNC+EDP group was higher in the next 1, 12, 24 and 48 hour [(209±15) mmHg vs (218±18) mmHg, (215±14) mmHg vs (222±17) mmHg, (223±13) mmHg vs (235±15) mmHg, (236±7) mmHg vs (257±12) mmHg,P<0.05]. The offline time was shorter [(13±3) d vs (12±3) d,P<0.05]. The excursion of diaphragm was higher [(1.94±0.08) cm vs (2.91±0.11) cm,P<0.05]. The length of stay in NICU was shorter [(33±14) d vs (28±9) d,P<0.05]. The Glasgow Coma Scale (GCS) was higher when being discharged from the NICU (5.9±2.1 vs 7.8±0.4, P<0.05) and the hospital (9.9±2.1 vs 11.0±2.0, P<0.05). Conclusions: EDP combination with HFNC can increase the excursion of diaphragm, shorten the offline time and length of stay in the NICU, thereby enhancing the early recovery and improving the prognosis.
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Song ZP, Li JR, Gao R, Cui YH, Pang SC, Yan B. [Association between single nucleotide polymorphism in promoter region of SIRT1 gene and senile degenerative heart valvular disease]. ZHONGHUA YI XUE ZA ZHI 2020; 100:991-996. [PMID: 32294855 DOI: 10.3760/cma.j.cn112137-20190716-01575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To investigate the correlation between single nucleotide polymorphisms (SNPs) of SIRT1 gene promoter sequence and senile degenerative heart valvular disease (SDHVD). Methods: A total of 236 SDHVD patients and 285 healthy controls who visited the Affiliated Hospital of Jining Medical University between February 2012 and October 2016 were enrolled. SNPs of SIRT1 gene promoter were detected by Sanger sequencing. Typing and correlation were analyzed by χ(2) test and Logistic regression analysis. Haplotype and linkage disequilibrium were analyzed by Haploview4.2 software and SHEsis online software. The effect of SNPs on the binding of transcription factors to SIRT1 gene promoter was analyzed by electrophoretic mobility shift assay(EMSA). The transcription factors affected by SNPs were predicted by Transfac online software. Results: The frequency distribution of GG genotype of rs3740051 in the SDHVD group was significantly higher than that in the control group (χ(2)=4.855, P=0.028). There was a correlation between GG genotype of the rs3740051 and SDHVD. After adjusting for age, the risk of SDHVD in the carrier of GG genotype was 3.079 times higher than that of AA genotype(OR=3.079, 95%CI: 1.156-8.201, P=0.024). The five SNPs (rs3740051, rs932658, rs35995735, rs3740053 and rs2394443) showed strong linkage disequilibrium(D'>0.8). The haplotype analysis of the five SNPs (haplotype frequency<0 was ignored in the analysis) showed that 11 haplotypes (P<0.05) were formed, and the frequency of *A**C, AA**C, *AG*C, AAG*C, AA*AC, *AGAC and AAGAC in SDHVD group were significantly higher than that in control group (P<0.05, OR>1, 95%CI does not contains 1). EMSA showed that the color of the binding bands incubated by wild type probe and nucleoprotein was darker than that incubated by DNA sequence variation probe and nucleoprotein. Conclusion: The GG genotype of rs3740051 is associated with SDHVD and may be a risk genotype for SDHVD. The haplotype AC (across rs932658 and rs2394443) may be a dangerous haplotype of SDHVD. rs3740051 may affect the occurrence and development of SDHVD by interfering with the binding of FOXC protein to SIRT1 gene promoter.
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Han L, Li X, Yan B, Han X, Wang C, Yang W, Liu X. Crystal Structure and Evaluation of the Anti-Gastric Cancer Activity of a New Sr(II)-Based Coordination Polymer. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620040095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yan B, Jin X, Li R, Gao Y, Zhang J, Li J, Wang G. Association of daytime napping with incident stroke in middle-aged and older adults: a large community-based study. Eur J Neurol 2020; 27:1028-1034. [PMID: 32129913 DOI: 10.1111/ene.14197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/28/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND PURPOSE There are conflicting reports on the association between daytime napping and incident stroke. This study was designed to investigate the relationship between daytime napping and stroke within a community-based cohort. METHODS The present prospective study was based on the Sleep Heart Health Study. Napping habits were assessed with a self-reported Sleep Habits Questionnaire. Participants with napping habits of different durations and frequencies were followed up until the first stroke occurred or the final censoring date. Cox proportional hazards models were used to estimate the relationship between napping habits and stroke. RESULTS A total of 4757 participants (2219 men, mean age 63.6 ± 11.1 years) were enrolled in this study. Compared with those taking no naps, multivariate proportional hazards models analysis indicated that individuals taking naps with a duration of >60 min [hazard ratio (HR), 2.460; 95% confidence interval (CI), 1.538-3.934] had a higher risk of stroke. There was also an increased risk of stroke among participants taking naps daily (HR, 1.563; 95% CI, 1.059-2.307) or five to six times/week (HR, 1.548; 95% CI, 1.026-2.335). After combining napping durations and frequencies, regular long naps (HR, 1.903; 95% CI, 1.182-3.065) and regular short naps (HR, 1.451; 95% CI, 1.010-2.084) were independent risk factors for incident stroke. CONCLUSION Daytime napping with a long duration (>30 min) or a high frequency (≥5 times/week) may increase the risk of stroke.
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Tan SS, Yan B, Saw S, Lee CK, Chong AT, Jureen R, Sethi S. Practical laboratory considerations amidst the COVID-19 outbreak: early experience from Singapore. J Clin Pathol 2020; 74:257-260. [PMID: 32198190 DOI: 10.1136/jclinpath-2020-206563] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 12/19/2022]
Abstract
The coronavirus disease 2019 (COVID-19) is a zoonotic viral infection originating from Wuhan, China in December 2019. The World Health Organization has classified this pandemic as a global health emergency due to its virulent nature of transmission, which may lead to acute respiratory distress syndrome. Singapore's health ministry has responded with enhanced surveillance of COVID-19 for all suspected pneumonia cases, further increasing the volume of testing via real-time reverse transcription PCR, as well as samples necessitating stringent infectious control. Collectively, this has implications on the total testing process, laboratory operations and its personnel due to biosafety concerns. Turnaround time for routine testing may also be affected. The aim of this article is to present our tertiary institution's early experience with managing this emerging crisis and offer practical considerations for the preanalytical, analytical and postanalytical phases of laboratory testing in this cohort of patients.
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Yan G, Lee CK, Lam LTM, Yan B, Chua YX, Lim AYN, Phang KF, Kew GS, Teng H, Ngai CH, Lin L, Foo RM, Pada S, Ng LC, Tambyah PA. Covert COVID-19 and false-positive dengue serology in Singapore. THE LANCET. INFECTIOUS DISEASES 2020; 20:536. [PMID: 32145189 PMCID: PMC7128937 DOI: 10.1016/s1473-3099(20)30158-4] [Citation(s) in RCA: 168] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 02/27/2020] [Indexed: 12/16/2022]
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Yin DG, Yan B, Feng K. Exploration of the relationship between DNA methyltransferase 1 and lung cancer screening. J BIOL REG HOMEOS AG 2020; 33:1789-1795. [PMID: 31989805 DOI: 10.23812/19-208-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yan B, Zhang W, Mao XW, Jiang LY. Circular RNA ciRS-7 correlates with advance disease and poor prognosis, and its down-regulation inhibits cells proliferation while induces cells apoptosis in non-small cell lung cancer. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 22:8712-8721. [PMID: 30575911 DOI: 10.26355/eurrev_201812_16636] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aimed to assess the association of circular RNA (circRNA) ciRS-7 expression with clinicopathological characteristics and prognosis of non-small cell lung cancer (NSCLC) patients, and to investigate its effect on cells proliferation as well as apoptosis in NSCLC. PATIENTS AND METHODS 132 patients with primary NSCLC who received surgical resection were recruited in this retrospective study. All patients' tumor tissue and paired adjacent tissue were collected for circRNA ciRS-7 expression detection by RT-qPCR. Disease-free survival (DFS) and overall survival (OS) were calculated. CCK-8 and Annexin-V/propidium iodide (AV/PI) assays were performed to detect cells proliferation and apoptosis in A549 cells after circRNA ciRS-7 inhibition plasmid transfection. RESULTS CircRNA ciRS-7 expression in tumor tissue was elevated compared to paired adjacent tissue, and positively correlated with tumor size, lymph node metastasis and tumor node metastasis (TNM) stages. K-M curves illustrated that circRNA ciRS-7 high expression was correlated with both shorter DFS and OS, and multivariate Cox's proportional hazards regression analysis showed that circRNA ciRS-7 high expression was an independent factor for predicting unfavorable DFS and OS. Cells methods revealed that circRNA ciRS-7 expression was elevated in NSCLC cell lines (A549, PC9, NCI-H1299 and NCI-H1650) compared to normal lung epithelial cells (DEAS-2B), and the inhibition of circRNA ciRS-7 expression reduced cells proliferation and promoted cells apoptosis in A549 cells. CONCLUSIONS CircRNA ciRS-7 overexpression is associated with advanced disease and poor prognosis in NSCLC patients, and the down-regulation of circRNA ciRS-7 inhibits tumor cells proliferation as well as improves cells apoptosis.
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Chen F, Wang Y, Ni H, Yan B. Research Article The 3AT gene determines fruit color of <i>Myrica</i> <i>rubra</i> (Myricaceae). GENETICS AND MOLECULAR RESEARCH 2020. [DOI: 10.4238/gmr18371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Luo XY, Yan B, Cai CF, Chen AM, Zhou M. URG4-silencing suppresses cell proliferation in nasopharyngeal carcinoma through induction of apoptosis. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 22:1717-1725. [PMID: 29630117 DOI: 10.26355/eurrev_201803_14585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the expression and function of up-regulator of gene-4 (URG4) in nasopharyngeal carcinoma (NPC). PATIENTS AND METHODS Fresh NPC tumor tissue samples with paired adjacent normal nasopharyngeal tissues samples of 9 NPC patients were collected from NPC curative resection surgery. NPC cell lines (CNE1, CNE2 and HONE1) were cultured. Lentivirus-mediated URG4-specific short hairpin RNA (shRNA) stable transfection was done. The effect of URG4 on CNE4 and HONE1 cells viability was determined via 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT). The plate-colony-formation assay was performed. Apoptosis analysis was done by flow cytometry. The expression levels of protein and RNA were detected by Western blotting and quantitative polymerase chain reaction (qPCR). RESULTS We determined the expression of URG4/URGCP in NPC tissues and cell lines using qPCR analysis and found it was significantly upregulated in NPC. After that, stable URG4-silencing NPC cells were constructed by transfection with lentivirus-mediated shRNA. Functionally analyses indicated that knockdown of URG4 significantly impaired cell viability and colony formation ability, as confirmed by MTT and colony formation assays. Furthermore, URG4-silencing NPC cells showed more cells in the stage of early and late apoptosis compared with controls by flow cytometry assay. Western blot analysis further confirmed that knockdown of URG4 enhanced the expression of cleaved caspase-3, cleaved PARP and Bax, while decreased the expression of Bcl-2 and survivin. CONCLUSIONS URG4/URGCP might play an essential role in NPC cell growth and proliferation and its silencing might be as a potential therapeutic target for NPC.
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Lu J, Zhong H, Wu J, Chu T, Zhang L, Li H, Wang Q, Li R, Zhao Y, Gu A, Shi C, Xiong L, Zhang X, Zhang W, Lou Y, Yan B, Dong Y, Zhang Y, Li B, Zhang L, Zhao X, Li K, Han B. MA25.09 Navigating Anlotinib Precision Therapy Through the Genetic Profiling of Circulating DNA in Non-Small Cell Lung Cancer Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.715] [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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Villanueva A, Poon KS, Gallardo CA, Chai CN, Chiu L, Yan B, Ding CSL, Yong KJ, Zhou J, Lee J, Tan K, Ong KH. A novel JAK2 R564* variant in a patient with thrombocytosis. Int J Lab Hematol 2019; 42:e38-e41. [PMID: 31441587 DOI: 10.1111/ijlh.13090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/19/2019] [Accepted: 07/22/2019] [Indexed: 11/28/2022]
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Huang HW, Yan B, Shang MX, Liu LB, Hao H, Xi ZJ. [Propensity-matched comparison of laparoscopic and open radical cystectomy for female patients with bladder cancer]. JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2019; 51:698-705. [PMID: 31420625 DOI: 10.19723/j.issn.1671-167x.2019.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To compare the perioperative and oncologic outcomes of female patients receiving laparoscopic radical cystectomy (LRC) and open radical cystectomy (ORC). METHODS Retrospective review of 91 consecutive female patients with urothelial carcinoma of bladder undergoing radical cystectomy at a single academic institution from 2006 to 2017. Those female patients received open radical cystectomy were matched to the patients who underwent laparoscopic radical cystectomy by using propensity score matching in 1 ∶1 ratio. The matching factors included age, body mass index (BMI), American Society of Anesthesiologists (ASA) score, pathologic stage and pathologic nodal stage. The perioperation and oncology characteristics were compared, and Kaplan-Meier method was used to analyze the overall survival (OS), cancer specific survival (CSS) and progression-free survival (PFS) estimates. Finally, we did a sensitive analysis by using multivariable COX regression of all the patients, adjusting for the matching factors. RESULTS There were 65 ORC and 26 LRC patients identified in this cohort with urothelial carcinoma of bladder, the median follow-up time was 38 months (interquartile range 18-69). The age (P<0.001) and ASA scores (P=0.018) were less for LRC before being matched. There were 22 LRC and 22 ORC patients matching successfully. Before being matched, the estimate blood loss (P=0.005), transfusion rate (P<0.001) and total complications rate (P=0.015) were less for LRC, and the lymph nodes yield was greater for LRC, but there were no differences in OS (P=0.698), CSS (P=0.942) and PFS (P=0.837) between the two groups. After being matched, the estimate blood loss (P=0.009), transfusion rate (P=0.001) and total complications rate (P=0.040) were less for LRC, but there was no difference in the lymph nodes yield. Besides, there were no statistic differences in OS (P=0.432), CSS (P=0.429) and PFS (P=0.284) between the two groups. In addition, in multivariable COX regression analysis, surgical approaches (LRC/ORC) were not found to be a predictor of OS (HR 1.134, 95%CI 0.335-3.835, P=0.839), CSS (HR 1.051, 95%CI 0.234-4.719, P=0.949) and PFS (HR 0.538, 95%CI 0.138-2.095, P=0.371) of the female patients with urothelial carcinoma of bladder. CONCLUSION It is advantageous for laparoscopic radical cystectomy in terms of estimating blood loss, transfusion rate and complication rate. But there was no evidence that laparoscopic radical cystectomy for female patients with bladder cancer had a better oncologic prognosis than open radical cystectomy from this study.
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Zhang S, Zhao Y, Xie Q, Jiang Y, Wu Y, Yan B. I 型干扰素与抗 MDA5 皮肌炎. Br J Dermatol 2019. [DOI: 10.1111/bjd.17806] [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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Zhang S, Zhao Y, Xie Q, Jiang Y, Wu Y, Yan B. Type I interferon in anti‐MDA5 dermatomyositis. Br J Dermatol 2019. [DOI: 10.1111/bjd.17794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yan G, Pang L, Cook AR, Ho HJ, Win MS, Khoo AL, Wong JG, Lee CK, Yan B, Jureen R, Ho SS, Lye DC, Tambyah PA, Leo YS, Fisher D, Oon J, Bagdasarian N, Chow A, Smitasin N, Chai LYA. Distinguishing Zika and Dengue Viruses through Simple Clinical Assessment, Singapore. Emerg Infect Dis 2019; 24:1565-1568. [PMID: 30016242 PMCID: PMC6056111 DOI: 10.3201/eid2408.171883] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Dengue virus and Zika virus coexist in tropical regions in Asia where healthcare resources are limited; differentiating the 2 viruses is challenging. We showed in a case–control discovery cohort, and replicated in a validation cohort, that the diagnostic indices of conjunctivitis, platelet count, and monocyte count reliably distinguished between these viruses.
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Qian J, Nie W, Lu J, Zhang L, Zhang Y, Zhang B, Wang S, Hu M, Xu J, Lou Y, Dong Y, Niu Y, Yan B, Zhong R, Zhang W, Chu T, Zhong H, Han BH. Racial disparities in characteristics and prognosis in Asian versus white patients receiving atezolizumab: An ancillary analysis of POPLAR and OAK studies. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz063.015] [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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Derunova E, Sun Y, Felser C, Parkin SSP, Yan B, Ali MN. Giant intrinsic spin Hall effect in W 3Ta and other A15 superconductors. SCIENCE ADVANCES 2019; 5:eaav8575. [PMID: 30972368 PMCID: PMC6450695 DOI: 10.1126/sciadv.aav8575] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 02/11/2019] [Indexed: 05/28/2023]
Abstract
The spin Hall effect (SHE) is the conversion of charge current to spin current, and nonmagnetic metals with large SHEs are extremely sought after for spintronic applications, but their rarity has stifled widespread use. Here, we predict and explain the large intrinsic SHE in β-W and the A15 family of superconductors: W3Ta, Ta3Sb, and Cr3Ir having spin Hall conductivities (SHCs) of -2250, -1400, and 1210ℏ e ( S / cm ) , respectively. Combining concepts from topological physics with the dependence of the SHE on the spin Berry curvature (SBC) of the electronic bands, we propose a simple strategy to rapidly search for materials with large intrinsic SHEs based on the following ideas: High symmetry combined with heavy atoms gives rise to multiple Dirac-like crossings in the electronic structure; without sufficient symmetry protection, these crossings gap due to spin-orbit coupling; and gapped crossings create large SBC.
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Wang Z, Wu H, Wang Y, Lu L, He Q, Li Y, Zhang S, Xie X, Yan B, Yu J, Zhong W. Measuring the common canal of a persistent cloaca: can MRI replace conventional imaging? Clin Radiol 2019; 74:488.e9-488.e15. [PMID: 30905379 DOI: 10.1016/j.crad.2019.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 01/24/2019] [Indexed: 11/30/2022]
Abstract
AIM To evaluate the role of MRI in preoperative assessments of patients with a persistent cloaca and compare magnetic resonance imaging (MRI) versus fluoroscopy contrast study in the accuracy of common canal measurement and classification prediction. MATERIALS AND METHODS Thirty-one patients with a persistent cloaca were diagnosed and treated at Guangzhou Women and Children's Medical Center between March 2011 and December 2017. The length of the common canal was measured using MRI and fluoroscopy contrast study. Classification results based on measurements were compared with cystoscopy and intraoperative findings. The accuracy in predicting the classification by measuring the common canal length was compared. RESULT Among 31 patients, 24 had MRI, 24 underwent fluoroscopy contrast study, and 25 underwent cystoscopy. In 20 patients, MRI-based categorisations were in accordance with cystoscopy or surgery findings, whereas in four patients there was discordance. In 17 patients, categorisations based on fluoroscopy contrast study were in accordance with cystoscopy or surgery findings, and in seven patients there was discordance; the difference was not statistically significant (p>0.05). CONCLUSION MRI may accurately demonstrate genitourinary anomalies and the length of the common canal in patients with persistent cloaca. Categorisation based on MRI measurements of the common canal was accordant with the results from cystoscopy and findings from surgery. The use of this method may help surgeons to develop appropriate reconstruction plans before sending their patients to the operating room.
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Gandhi M, Cocco S, McDonald C, Hindi Z, Chakraborty D, French K, Siddiqi O, Blier M, Markandey B, Siebring V, Brahmania M, Khanna N, Jairath V, Yan B, Sey M. A276 CLINCAL PREDICTORS FOR SESSILE SERRATED ADENOMA DETECTION: AN ANALYSIS OF 17,524 COLONOSCOPIES. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.275] [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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Yan B. Selection of Patients with Stroke for Thrombectomy Must Be Judicious and Should Not Be Offered to Any Patient with Large-Vessel Occlusion with a Femoral Pulse. AJNR Am J Neuroradiol 2018; 40:287. [PMID: 30573463 DOI: 10.3174/ajnr.a5928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Lv HL, Yan B, Zhang QH. [Analysis of related factors of coins foreign bodies crossing the esophagus in 204 cases of children]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2018; 32:661-664. [PMID: 29771081 DOI: 10.13201/j.issn.1001-1781.2018.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Indexed: 11/12/2022]
Abstract
Objective:To explore the anti-tumor effect of Stat3 antisense oligodeoxynucleotide on human Hep-2 cell tumor-bearing BALB/c nude mouse, to study the therapeutic value of Stat3 antisense oligodeoxynucleotide on laryngeal cancer. Method:Hep-2 cells from human laryngeal carcinoma in logarithmic phase were inoculated subcutaneously into BALB/c mice to establish a model of human Hep-2 cell tumor-bearing BALB/c mice. They were divided into blank group, control group and different concentrations of AS3 groups(1 group, 2 group, 3 group, 4 group), and then intraperitoneally administered once a day for 4 weeks, measuring body weight twice a week, and the long and short diameters of the tumors were recorded. After 4 weeks, the mice in each group were weighted. The subcutaneous transplanted tumors were dissected, weighted, and inhibitory rate was obtained.Result:Stat3 antisense oligodeoxynucleotide can obviously inhibited the growth of human Hep-2 cell tumor-bearing BALB/c mice with the concentration of antisense oligodeoxynucleotide heightened. The IR in different concentration AS3 groups was obviously higher than that in the control group(P<0.01) .Conclusion:Stat3 antisense oligodeoxynucleotide can obviously inhibit the growth of subcutaneous transplanted tumors in human Hep-2 cell tumor-bearing BALB/c mice, and may have therapeutical effect on laryngeal cancer.
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Lu J, Zhang W, Yan B, Li H, Zhang L, Dong Y, Qian J, Wang S, Zhang B, Wu J, Zhao X, Zhao Y, Han B. Tumor mutation index as a biomarker for responsive stratification on multi-targeted TKI anlotinib: An ALTER-0303 companion diagnostic study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy441.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Liu L, Li J, Yuan S, Wang T, Chu F, Lu X, Hu J, Wang C, Yan B, Wang L. Evaluating the effectiveness of a preclinical practice of tooth preparation using digital training system: A randomised controlled trial. EUROPEAN JOURNAL OF DENTAL EDUCATION : OFFICIAL JOURNAL OF THE ASSOCIATION FOR DENTAL EDUCATION IN EUROPE 2018; 22:e679-e686. [PMID: 29952122 DOI: 10.1111/eje.12378] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/06/2018] [Indexed: 06/08/2023]
Abstract
PURPOSE This study aimed to evaluate the effectiveness of preclinical training on ceramic crown preparation using digital training system compared with traditional training method. MATERIALS AND METHODS A sample of 66 participating fourth-year undergraduate dental students were randomly assigned to one of two groups for ceramic crown preparation: experimental group as trained using digital method with Online Peer-Review System (OPRS) and Real-time Dental Training and Evaluation System (RDTES); control group as trained using traditional method with instructor demonstration and evaluation. At the completion of training periods, both groups performed the preparation of ceramic crown of upper left central incisor, which were blindly scored by the experienced instructors under the pre-defined assessment criteria. The results of both were compared using Student's t-test or Wilcoxon signed rank test. The level of significance was P < .05. The questionnaires regarding the benefits or drawbacks of digital training system were answered by the students of experimental group. RESULTS Five of 15 items in the assessment outcome of the digital group were significantly better than the traditional group. The questionnaire results from the students of the experimental group indicated 96.97% of the students agreed or strongly agreed that using digital training system could better improve the practical ability than traditional method. The total scores of practical results were significantly positively correlated with the points of the questionnaires. CONCLUSION The digital training system with OPRS and RDTES might be a good alternative to the traditional training method in the preclinical course of dental practice.
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Rassidakis GZ, Herold N, Myrberg IH, Tsesmetzis N, Rudd SG, Henter JI, Schaller T, Ng SB, Chng WJ, Yan B, Ng CH, Ravandi F, Andreeff M, Kantarjian HM, Medeiros LJ, Xagoraris I, Khoury JD. Low-level expression of SAMHD1 in acute myeloid leukemia (AML) blasts correlates with improved outcome upon consolidation chemotherapy with high-dose cytarabine-based regimens. Blood Cancer J 2018; 8:98. [PMID: 30341277 PMCID: PMC6195559 DOI: 10.1038/s41408-018-0134-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 08/19/2018] [Accepted: 09/10/2018] [Indexed: 12/27/2022] Open
Abstract
Sterile alpha motif and histidine/aspartic acid domain containing protein 1 (SAMHD1) limits the efficacy of cytarabine (ara-C) used in AML by hydrolyzing its active metabolite ara-CTP and thus represents a promising therapeutic target. SAMHD1 has also been implicated in DNA damage repair that may impact DNA damage-inducing therapies such as anthracyclines, during induction therapy. To determine whether SAMHD1 limits ara-C efficacy during induction or consolidation therapy, SAMHD1 protein levels were assessed in two patient cohorts of de novo AML from The University of Texas MD Anderson Cancer Center (USA) and the National University Hospital (Singapore), respectively, using immunohistochemistry and tissue microarrays. SAMHD1 was expressed at a variable level by AML blasts but not in a broad range of normal hematopoietic cells in reactive bone marrows. A sizeable patient subset with low SAMHD1 expression (<25% of positive blasts) was identified, which was significantly associated with longer event-free (EFS) and overall (OS) survival in patients receiving high-dose cytarabine (HDAC) during consolidation. Therefore, evaluation of SAMHD1 expression level in AML blasts at diagnosis, may stratify patient groups for future clinical trials combining HDAC with novel SAMHD1 inhibitors as consolidation therapy.
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Chen X, Sheng X, Liu G, Liu Y, Li H, Xie P, Liu Q, Yan B, Zhao C. Co-Existence of Novel PDE6A Mutations and A Recurrent RPGR Mutation: A Potential Explanation for Phenotypic Diversity in Female RPGR Mutation Carriers. Curr Mol Med 2018; 18:306-311. [PMID: 30289068 DOI: 10.2174/1566524018666181004122607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 09/20/2018] [Accepted: 09/28/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND To report the co-existence of novel biallelic PDE6A mutations and heterozygous RPGR mutation in a Chinese female patient with retinitis pigmentosa (RP), and to analyze the intrafamilial phenotypic diversity. METHODS Three patients with retinopathy and four healthy family members were included in genetic and clinical analyses. Personal medical records were obtained from another four unaffected female family members who refused blood donation. Family history was carefully recorded. Each patient received comprehensive ophthalmic tests. Targeted next-generation sequencing (NGS) approach was performed on the proband to determine the retinopathy causative mutation for this family. In silico analysis was also applied to analyze the pathogenesis of identified mutations. RESULTS The two recruited male patients were diagnosed with RP, and the female patient RP sine pigmento (RPSP). Genetic assessments revealed a recurrent RPGR mutation, c.1926_1927insA, carried by all three patients and segregated the disease status. Three other unaffected female family members were confirmed as carriers for the identified RPGR mutation, and another four as obligate carriers. Interestingly, of all the eight female RPGR mutation carriers in this family, only one female developed retinal dystrophy. Comprehensive genetic analysis of this patient unraveled additional biallelic PDE6A mutations, c.[1066-9delT];[2324delG], carried solely by this individual. CONCLUSIONS Taken together, we hypothesize that the phenotypic variability presented by female RPGR mutation carriers may be attributed to the co-existence of other disease-causative mutations. Our study also emphasizes the importance of comprehensive genetic analysis in these female carriers, which will contribute to better diagnosis, prognosis, and treatment for these patients.
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Han B, Lu J, Zhang W, Yan B, Zhang L, Qian J, Zhang B, Wang S. JCSE01.19 ALTER-0303 Study: Tumor Mutation Index (TMI) For Clinical Response to Anlotinib in Advanced NSCLC Patients at 3rd Line. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.225] [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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Zhang Y, Yan B, Yang H, Yang N. P1.15-36 A Better Real World Practice for Pemetrexed in First-Line Treatment of Advanced Mon-Squamous Non-Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.969] [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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Lee CK, Chai CN, Capinpin SM, Ang A, Ng SY, Lee PL, Ng CWS, Yan G, Lee HK, Chiu LL, Jureen R, Yan B, Loh TP. Evaluation of the Luminex ARIES HSV 1&2 Assay and Comparison with the FTD Neuro 9 and In-house Real-Time PCR Assays for Detecting Herpes Simplex Viruses. Ann Lab Med 2018; 38:440-445. [PMID: 29797814 PMCID: PMC5973918 DOI: 10.3343/alm.2018.38.5.440] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 12/15/2017] [Accepted: 05/03/2018] [Indexed: 11/20/2022] Open
Abstract
Background Human herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) are responsible for a plethora of human diseases, of which cutaneous and mucocutaneous infections are the most prevalent. In its most severe form, HSV infection can cause meningitis/encephalitis. We compared the Luminex ARIES HSV 1&2 assay (Luminex Corp., Austin, TX, USA), an automated sample-to-result molecular solution, to two non-automated HSV DNA assays. Methods A total of 116 artificial controls were used to determine the analytical performance of the ARIES assay. Controls were prepared by spiking universal transport medium (UTM) and cerebrospinal fluid (CSF) samples from patients who tested negative for HSV by an in-house HSV-1 and -2 DNA assay with reference materials (SeraCare Life Sciences, MA, USA; ZeptoMetrix Corp., MA, USA). Another 117 clinical samples were then used to compare the clinical performance of the ARIES assay with those of an in-house assay and the FTD Neuro 9 assay (Fast Track Diagnostics, Junglinster, Luxembourg). Results The analytical sensitivity (95% limit of detection) of the ARIES assay was 318 copies/mL (UTM samples) and 935 copies/mL (CSF samples) for HSV-1 strain 96 and 253 copies/mL (UTM samples) and 821 copies/mL (CSF samples) for HSV-2 strain 09. No cross-reactivity was observed in samples spiked with 14 non-HSV microorganisms. Compared with the reference result (agreement between the in-house and FTD Neuro 9 results), the ARIES assay had overall concordance rates of 98.2% (111/113) and 100% (113/113) for HSV-1 and HSV-2, respectively. Conclusions The ARIES assay appears to be an excellent alternative for rapid detection and differentiation of HSV in skin and genital infections, meningitis, and encephalitis.
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Zhang SH, Zhao Y, Xie QB, Jiang Y, Wu YK, Yan B. Aberrant activation of the type I interferon system may contribute to the pathogenesis of anti-melanoma differentiation-associated gene 5 dermatomyositis. Br J Dermatol 2018; 180:1090-1098. [PMID: 29947075 DOI: 10.1111/bjd.16917] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/04/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND Anti-melanoma differentiation-associated gene 5 (MDA5) dermatomyositis (DM) is a distinctive subtype of DM that carries a significant risk of interstitial lung disease (ILD). The mechanisms remain elusive. OBJECTIVES To explore the role of the type I interferon (IFN) system in the pathogenesis of anti-MDA5 DM. METHODS Twenty patients with anti-MDA5 DM were studied and compared with patients with anti-aminoacyl-tRNA synthetase (ARS) DM (n = 10) and autoantibody-negative patients with DM (n = 20). The levels of inflammatory cytokines, B-cell-activating factor (BAFF) and Krebs von den Lungen (KL)-6 in blood were tested by enzyme-linked immunosorbent assay and multiplex assays. Expressions of transcripts for IFN-associated sensors and type I IFN-inducible genes in peripheral blood mononuclear cells (PBMCs) were detected by real-time polymerase chain reaction. Expressions of the signal transducer and activator of transcription (STAT)1, interferon-stimulated gene (ISG)15 and MxA proteins in skin lesions were analysed by immunohistochemistry. RESULTS Plasma IFN-α levels were significantly increased in patients with anti-MDA5 DM. PBMCs from patients with anti-MDA5 DM showed significant upregulation of the TLR3, TLR7, IFIH1 and DDX58 genes, as well as serial IFN-inducible genes. Skin biopsies from patients with anti-MDA5 DM were characterized by strong expression of the STAT1, ISG15 and MxA proteins. In the patients with anti-MDA5 DM and ILD with high IFN-α production, there was a positive quantitative correlation between IFN-α and BAFF (rs = 0·63, P = 0·044). In addition, the higher levels of BAFF paralleled the higher concentrations of KL-6 (rs = 0·86, P = 0·0012). CONCLUSIONS Our data confirm the aberrant activation of the type I IFN system in anti-MDA5 DM. Overproduction of IFN-α linked with BAFF may be implicated in the development of ILD.
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Xie X, Yang Y, Ren Q, Ding X, Bao P, Yan B, Yan X, Han J, Yan P, Qiu Q. Accumulation of deleterious mutations in the domestic yak genome. Anim Genet 2018; 49:384-392. [DOI: 10.1111/age.12703] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2018] [Indexed: 12/19/2022]
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Zhang J, Gong Z, Li R, Gao Y, Li Y, Li J, Yan B, Wang G. Influence of lung function and sleep-disordered breathing on stroke: a community-based study. Eur J Neurol 2018; 25:1307-e112. [PMID: 29924443 DOI: 10.1111/ene.13722] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 06/19/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE Impaired lung function is regarded as a risk factor for stroke in patients with chronic obstructive pulmonary disease. However, the association between reduced lung function and incident stroke in a community-based population with sleep-disordered breathing (SDB) remains unknown. METHODS A prospective study was performed within the Sleep Heart Health Study cohort. Full montage home sleep testing and spirometry data on 2082 and 2072 individuals with and without SDB, respectively, were analysed. Cox proportional hazards regression models were used to estimate the association between lung function and incident stroke. RESULTS Over 11.7 years, 183 cases of stroke were identified in participants without pre-existing cardiovascular diseases, including 71 and 112 with an apnoea-hypopnoea index <5 events/h and ≥5 events/h, respectively. In the entire population, lung function was inversely associated with incident stroke [hazard ratio (HR) 0.913 (95% confidence interval 0.839-0.994) for every 10% increase in percentage of predicted forced vital capacity]. When the population was divided according to the presence/absence of SDB, the association of lung function with incident stroke became stronger in individuals with SDB [HR 0.899 (0.822-0.984) for every 10% increase in percentage of predicted forced expiratory volume in 1 s; HR 0.881 (0.787-0.987) for every 10% increase in percentage of predicted forced vital capacity] but not in individuals without SDB. CONCLUSIONS Lung function may serve as a risk factor for incident stroke in a community-based population, especially in those with SDB. Spirometry may help improve the risk management for primary care in community-based populations.
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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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Soekojo CY, de Mel S, Ooi M, Yan B, Chng WJ. Potential Clinical Application of Genomics in Multiple Myeloma. Int J Mol Sci 2018; 19:ijms19061721. [PMID: 29890777 PMCID: PMC6032230 DOI: 10.3390/ijms19061721] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/02/2018] [Accepted: 06/07/2018] [Indexed: 12/19/2022] Open
Abstract
Multiple myeloma is a heterogeneous disease with different characteristics, and genetic aberrations play important roles in this heterogeneity. Studies have shown that these genetic aberrations are crucial in prognostication and response assessment; recent efforts have focused on their possible therapeutic implications. Despite many emerging studies being published, the best way to incorporate these results into clinical practice remains unclear. In this review paper we describe the different genomic techniques available, including the latest advancements, and discuss the potential clinical application of genomics in multiple myeloma.
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Ng IKS, Lee J, Ng C, Kosmo B, Chiu L, Seah E, Mok MMH, Tan K, Osato M, Chng WJ, Yan B, Tan LK. Preleukemic and second-hit mutational events in an acute myeloid leukemia patient with a novel germline RUNX1 mutation. Biomark Res 2018; 6:16. [PMID: 29780592 PMCID: PMC5948813 DOI: 10.1186/s40364-018-0130-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 04/30/2018] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Germline mutations in the RUNX1 transcription factor give rise to a rare autosomal dominant genetic condition classified under the entity: Familial Platelet Disorders with predisposition to Acute Myeloid Leukaemia (FPD/AML). While several studies have identified a myriad of germline RUNX1 mutations implicated in this disorder, second-hit mutational events are necessary for patients with hereditary thrombocytopenia to develop full-blown AML. The molecular picture behind this process remains unclear. We describe a patient of Malay descent with an unreported 7-bp germline RUNX1 frameshift deletion, who developed second-hit mutations that could have brought about the leukaemic transformation from a pre-leukaemic state. These mutations were charted through the course of the treatment and stem cell transplant, showing a clear correlation between her clinical presentation and the mutations present. CASE PRESENTATION The patient was a 27-year-old Malay woman who presented with AML on the background of hereditary thrombocytopenia affecting her father and 3 brothers. Initial molecular testing revealed the same novel RUNX1 mutation in all 5 individuals. The patient received standard induction, consolidation chemotherapy, and a haploidentical stem cell transplant from her mother with normal RUNX1 profile. Comprehensive genomic analyses were performed at diagnosis, post-chemotherapy and post-transplant. A total of 8 mutations (RUNX1, GATA2, DNMT3A, BCORL1, BCOR, 2 PHF6 and CDKN2A) were identified in the pre-induction sample, of which 5 remained (RUNX1, DNMT3A, BCORL1, BCOR and 1 out of 2 PHF6) in the post-treatment sample and none were present post-transplant. In brief, the 3 mutations which were lost along with the leukemic cells at complete morphological remission were most likely acquired leukemic driver mutations that were responsible for the AML transformation from a pre-leukemic germline RUNX1-mutated state. On the contrary, the 5 mutations that persisted post-treatment, including the germline RUNX1 mutation, were likely to be part of the preleukemic clone. CONCLUSION Further studies are necessary to assess the prevalence of these preleukemic and secondary mutations in the larger FPD/AML patient cohort and establish their prognostic significance. Given the molecular heterogeneity of FPD/AML and other AML subtypes, a better understanding of mutational classes and their involvement in AML pathogenesis can improve risk stratification of patients for more effective and targeted therapy.
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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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95
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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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96
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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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97
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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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98
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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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99
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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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100
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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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