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Barroso-Sousa R, Barry WT, Guo H, Dillon D, Tan YB, Fuhrman K, Osmani W, Getz A, Baltay M, Dang C, Yardley D, Moy B, Marcom PK, Mittendorf EA, Krop IE, Winer EP, Tolaney SM. The immune profile of small HER2-positive breast cancers: a secondary analysis from the APT trial. Ann Oncol 2019; 30:575-581. [PMID: 30753274 PMCID: PMC8033534 DOI: 10.1093/annonc/mdz047] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Previous data suggest that the immune microenvironment plays a critical role in human epidermal growth factor receptor 2 (HER2) -positive breast cancer; however, there is little known about the immune profiles of small HER2-positive tumors. In this study, we aimed to characterize the immune microenvironment of small HER2-positive breast cancers included in the Adjuvant paclitaxel and trastuzumab for node-negative, HER2-positive breast cancer (APT) trial and to correlate the immune markers with pathological and molecular tumor characteristics. PATIENTS AND METHODS The APT trial was a multicenter, single-arm, phase II study of paclitaxel and trastuzumab in patients with node-negative HER2-positive breast cancer. The study included 406 patients with HER2-positive, node-negative breast cancer, measuring up to 3 cm. Exploratory analysis of tumor infiltrating lymphocytes (TIL), programmed death-ligand 1 (PD-L1) expression (by immunohistochemistry), and immune gene signatures using data generated by nCounter PanCancer Pathways Panel (NanoString Technologies, Seattle, WA), and their association with pathological and molecular characteristics was carried out. RESULTS Of the 406 patients, 328 (81%) had at least one immune assay carried out: 284 cases were evaluated for TIL, 266 for PD-L1, and 213 for immune gene signatures. High TIL (≥60%) were seen with greater frequency in hormone-receptor (HR) negative, histological grades 2 and 3, as well in HER2-enriched and basal-like tumors. Lower stromal PD-L1 (≤1%) expression was seen with greater frequency in HR-positive, histological grade 1, and in luminal tumors. Both TIL and stromal PD-L1 were positively correlated with 10 immune cell signatures, including Th1 and B cell signatures. Luminal B tumors were negatively correlated with those signatures. Significant correlation was seen among these immune markers; however, the magnitude of correlation did not indicate a monotonic relationship between them. CONCLUSION Immune profiles of small HER2-positive breast cancers differ according to HR status, histological grade, and molecular subtype. Further work is needed to explore the implication of these findings on disease outcome. CLINICAL TRIAL REGISTRATION clinicaltrials.gov identifier: NCT00542451.
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Zhu L, Wang ZQ, Feng H, Fu C, Hu XY, Xu J, Jiang JP, Guo H, Lin ZB, Chen ZS, Chen G. [Strategy and clinical outcome of deceased donor kidney transplantation for presensitized recipients]. ZHONGHUA YI XUE ZA ZHI 2019; 99:895-900. [PMID: 30917437 DOI: 10.3760/cma.j.issn.0376-2491.2019.12.004] [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 explore the management strategy and clinical outcome of renal transplantation in presensitized recipients using deceased donor kidneys. Methods: From January 2011 to June 2018, twenty-one presensitized patients, including 8 with positive donor specific antibodies (DSA) and 13 with positive panel-reactive antibodies (PRA) but no DSA, received renal retransplantation from deceased donors in our center. The incidence of delayed graft function (DGF) and acute rejection (AR), changes of DSA, and the graft and patient survival were retrospectively analyzed. Results: None of the renal allografts had primary non-function (PNF) and DGF after transplantation. Four of the 13 recipients with PRA(+)/DSA-had a total of 5 episodes of acute cell-mediated rejection (CMR), while 5 of 8 recipients with pre-existing DSA(+) developed AR, including 3 cases with CMR alone and 2 cases with mixed AR. All episodes of rejection were successfully reversed after targeted treatment. Interestingly, of the 8 recipients with positive preformed DSA, 4 cases with positive DR-DSA and/or class Ⅰ-DSA had their DSA disappeared after transplantation, whereas DQ-DSA remained positive in 4 of 5 recipients. After a median follow-up of 26 months, all recipients maintained normal renal allograft function, and the survival rates of both graft and recipient were 100%. Conclusions: With the use of deceased donors, kidney transplantation can be successfully performed in presensitized patients by appropriate HLA-matching screening, choosing donor kidneys with good quality, and the combination of optimal perioperative treatment.
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Metzger Filho O, Janiszewska M, Guo H, Yardley D, Mayer I, Spring L, Arteaga C, Wrabel E, DeMeo M, Freedman R, Tolaney S, Waks A, Bardia A, Parsons H, Partridge A, Mayer E, King T, Polyak K, Viale G, Winer E, Krop I. Abstract P1-15-01: Withdrawn. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-15-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was withdrawn by the authors.
Citation Format: Metzger Filho O, Janiszewska M, Guo H, Yardley D, Mayer I, Spring L, Arteaga C, Wrabel E, DeMeo M, Freedman R, Tolaney S, Waks A, Bardia A, Parsons H, Partridge A, Mayer E, King T, Polyak K, Viale G, Winer E, Krop I. Withdrawn [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-15-01.
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Garrido-Castro AC, Hughes ME, Cherniack A, Barroso-Sousa R, Bychkovsky BL, Di Lascio S, Berger A, Mittendorf EA, Files JL, Guo H, Kumari P, Cerami E, Krop IE, Wagle N, Lindeman NI, MacConaill LE, Dillon DA, Winer EP, Lin NU. Abstract PD9-01: Genomic alterations associated with loss of HR expression in metastatic breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-pd9-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Discordance in hormone receptor (HR) status between primary (p) tumors and metastatic (m) recurrences has been widely described. Loss of estrogen and progesterone receptor expression occurs in ˜12% of asynchronous recurrences, leading to triple-negative (TN) status in the metastasis. Genomic mechanisms driving HR loss and its prognostic and therapeutic implications have not been fully elucidated.
Methods: Targeted NGS (Oncopanel, OP) at Dana-Farber Cancer Institute using multiplexed copy number variation and mutation (mut) detection across the full coding regions of 300 genes and selected intronic regions of 35 genes was prospectively performed on either archival primary or metastatic samples collected in patients (pts) with metastatic breast cancer (MBC). Receptor status at initial diagnosis and recurrence were reviewed using a 1% cutoff to define HR-positivity and excluding HER2+ cases. Fisher´s exact test was used to compare frequency of alterations. Tumor mut burden (TMB) was computed normalizing the sum of reported exon mut in each pt by the exonic-bait-set size of the panel.
Results: Between 8/2013-9/2016, 929 pts with MBC underwent OP testing. Of 517 pts diagnosed with primary HR+/HER2- breast cancer, at time of recurrence 388 remained HR+/HER2- (pHR+/mHR+), 39 switched to HR-/HER2- (pHR+/mTN, of which 23 (59%) had initial HR expression >10%), 10 switched to HER2+ and 80 had unknown metastatic receptor status. Comparison between primary samples in pHR+/mHR+ (n=245) and pHR+/mTN (n=24) showed that pHR+/mTN was significantly more likely to harbor mut in TP53, STK11 and MSH6, amplifications (amp) in CCNE1 and FGFR2, and less likely to have PIK3CA mut or CCND1 amp. Median TMB in primary pHR+/mHR+ was 6.05 mut/Mb (0-37.5) and 5.68 mut/Mb (1.2-10.9) in pHR+/mTN (p=0.45). Metastatic samples in pHR+/mTN (n=15) were enriched in ARID1A, CRTC2 and CDH1 mut compared to metastases (n=40) in pts who remained TN (pTN/mTN). Deletions in CDKN2A/2B and RB1, and mut in TP53, NOTCH2 and ERCC2 were more prevalent in recurrent tumors of pHR+/mTN than pHR+/mHR+. In metastases, TMB was higher in pHR+/mTN than pTN/mTN or pHR+/mHR+ (10.9 vs. 7.0 vs. 7.3 mut/Mb, respectively; p=0.002). Median OS from initial diagnosis was 9.4 yrs in pHR+/mTN, less than pHR+/mHR+ (15.9 yrs; p=0.009) and greater than pTN/mTN (4.3 yrs; p=0.008). Median OS from MBC diagnosis was 1.8 yrs in pHR+/mTN, less than pHR+/mHR+ (6.4 yrs; p=0.001) but not significantly different than pTN/mTN (1.5 yrs, p=0.3).
pHR+/mHR+ (n=245)pHR+/mTN (n=24)p value NFreq (%)NFreq (%) MutTP536325.72083.3<0.00001PIK3CA9438.4000GATA33514.3000.053STK1152.0312.50.026MSH641.6312.50.017AmpFGFR20028.30.008CCNE10028.30.008CCND14418.0000.018
Conclusion: Targeted NGS shows that alterations in DNA damage and cell-cycle regulation pathways in primary HR+ tumors are associated with HR loss in the metastatic setting. Primary tumors that lose HR appear more similar to basal-like than luminal tumors, despite >10% baseline HR expression in most pts, and once metastatic, survival is comparable to pTN/mTN. Metastases with HR loss have higher TMB than those that remain HR+ or TN throughout the course of the disease. These findings, if confirmed, may influence treatment and pt selection for clinical trials.
Citation Format: Garrido-Castro AC, Hughes ME, Cherniack A, Barroso-Sousa R, Bychkovsky BL, Di Lascio S, Berger A, Mittendorf EA, Files JL, Guo H, Kumari P, Cerami E, Krop IE, Wagle N, Lindeman NI, MacConaill LE, Dillon DA, Winer EP, Lin NU. Genomic alterations associated with loss of HR expression in metastatic breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr PD9-01.
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Guo H, Zheng M, Jiao YB, Zheng H. [Paclitaxel enhances the protective effect of myocardial ischemia preconditioning on ischemia/reperfusion injury in aged rat]. ZHONGHUA XIN XUE GUAN BING ZA ZHI 2019; 46:719-724. [PMID: 30293379 DOI: 10.3760/cma.j.issn.0253-3758.2018.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate if paclitaxel can enhance the protective effect of myocardial ischemia preconditioning on ischemia/reperfusion injury in aged ratand explore related mechanism. Methods: Primary cardiomyocytes of Sprague-Dawley rats were isolated by trypsin and divided into 5 groups(n=6 each): control group, hypoxia injury group, hypoxia preconditioning group, paclitaxel group,and paclitaxel+hypoxia preconditioning group. The structure of microtubules and the expression of hypoxia-inducible factor-1α(HIF-1α) were analyzed by immunofluorescence staining. The Langendorff isolated heart perfusion model was applied in 4 groups: hypoxia reperfusion injury group, hypoxia preconditioning group, paclitaxel group, and paclitaxel+hypoxia preconditioning group. Each group was further divided into elderly subgroup and adult subgroup (n=6 each). Left ventricular developed pressure and maximum rate of rise in left ventricular pressure were analyzed. Results: (1) Primary cardiomyocyte experiments showed that the myocardial tubular microtubule structure in control group was intact and evenly stained; most of the microtubules in the hypoxia-injured group were absent and the tubular tissue was broken; the hypoxia-induced damage on microtubule structure was smaller in the hypoxic preconditioning group compared with the hypoxic injury group (microtubule staining was not uniform, and the lattice structure was broken, but not that obvious as in the hypoxia group); the tubular structure of the microtubules of the paclitaxel group was basically complete, and the staining was basically uniform.The integrity of tubular structure was maintained to some extent, similar to a normal microtubule structure in paclitaxel+hypoxia preconditioning group. The expression of HIF-1α in the cytoplasm and nucleus was very low in the control group, which was evidenced in both cytoplasm and nucleus in the hypoxic injury group.The expression was further increased in hypoxic preconditioning group, significant nuclear HIF-1 expression was found in the paclitaxel group, the expression was aggregated in the nucleus in the Paclitaxel+ hypoxia preconditioning group. (2)In Langendorff isolated heart perfusion model, left ventricular developed pressure was similar between the elderly subgroup and the adult subgroup at the end of the infusion,after precondition, 5 minutes of reperfusion, 30 minutes of reperfusion, and 60 minutes of reperfusion in the hypoxic injury group (all P> 0.05).In the hypoxic injury group, both the elderly subgroup and the adult subgroup had lower left ventricular developed pressure at 30 minutes of reperfusion when compared with the end of the infusion((15.63±4.88) mmHg (1 mmHg=0.133 kPa) vs. (95.63±22.14)mmHg and (17.31±2.75)mmHg vs. (91.00±9.58)mmHg, respectively,all P<0.05). In the hypoxic preconditioning group, the adult subgroup had higher left ventricular developed pressure at 5 and 30 minutes of reperfusion when compared with the elderly subgroup((7.13±1.02) mmHg vs. (3.75±1.06)mmHg and (43.94±3.21)mmHg vs.(16.31±1.54)mmHg, respectively,all P<0.01). In the paclitaxel group, the adult subgroup had higher left ventricular developed pressure at 30 and 60 minutes of reperfusion when compared with the elderly subgroup((44.31±7.59)mmHg vs. (5.44±1.21)mmHg, (51.56±6.03)mmHg vs. (22.19±5.14)mmHg, respectively, all P<0.01). In the paclitaxel+hypoxia preconditioning group, both the elderly subgroup and the adult subgroup had lower left ventricular developed pressure at 30 minutes of reperfusion when compared with the end of the infusion((18.63±4.30)mmHg vs. (99.94±8.23) mmHg, P<0.01; (49.69±5.34)mmHg vs. (95.31±5.26)mmHg, P<0.05). Meanwhile, the adult subgroup had higher left ventricular developed pressure at 30 minutes of reperfusion when compared with the elderly subgroup((49.69±5.34)mmHg vs. (18.63±4.33)mmHg, P<0.01).The adult subgroup had higher change rate of maximum rate of rise in left ventricular pressure at 60 minutes of reperfusion when compared with the elderly subgroup in hypoxia preconditioning group, paclitaxel group, and paclitaxel combined hypoxia preconditioning group((62.83±3.92)% vs. (33.33±3.20)%, (44.17±2.32)% vs. (36.67±2.88)%, (72.50±2.66)% vs. (53.17±2.56)%, respectively,all P<0.01). Conclusion: Paclitaxel can enhance the myocardial protective effect of myocardial ischemia preconditioning through stabilizing microtubules of cardiomyocytes and promoting HIF-1α localization in the nucleus.
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He ZM, Guo H, Jiang XL, Li JP, Zhang QL, Yang YP, Dong XS, Da P, Shi J, Li M, Shi MC, Han F. [Impaired hypoxic ventilatory response and related factors in Han and Uygur patients with obstructive sleep apnea-hypopnea syndrome]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2019; 41:296-300. [PMID: 29690686 DOI: 10.3760/cma.j.issn.1001-0939.2018.04.009] [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 investigate the respiratory central hypoxia response and its related factors in Han and Uygur patients with obstructive sleep apnea hypopnea syndrome (OSAHS). Methods: One hundred and sixty six OSAHS patients were selected from Jan. 2016 to Dec. 2016 in Department of Respiratory and Critical Care Medicine, Kelamayi Central Hospital, including 69 cases of Han nationality and 97 cases of Uygur nationality. Seventy-three healthy subjects of Uygur nationality were enrolled as the control group. All of them under went sleep monitoring, nocturnal oxygen saturation (SaO(2)), pulmonary function and respiratory central hypoxia response. Results: The 3 groups were matched for age, gender, body mass index(BMI) and apnea-hypopnea index(AHI). The Uygur patients had a higher oxygen desaturation index (ODI4) [(30±22) per hour vs (18±17) per hour ] than Han patients of the same age and BMI. Compared to Han patients, Uygur patients had weaker hypoxic responsiveness [(-0.41±0.23) L·min(-1)·%(-1) vs (-0.36±0.22) L·min(-1)·%(-1,) P<0.05], and the difference still existed after adjusting for AHI [(-0.31±0.21) L·min(-1)·%(-1) vs (-0.41±0.22) L·min(-1)·%(-1,) P<0.05] in mild OSAHS, but this difference was not significant in severe OSAHS. Conclusions: The central hypoxic response in Uygur OSAHS patients was lower than that in Han OSAHS patients and normal controls.
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Feng M, Zhang SL, Liang ZJ, Wang YL, Zhao XC, Gao C, Guo H, Luo J. Peripheral neutrophil CD64 index combined with complement, CRP, WBC count and B cells improves the ability of diagnosing bacterial infection in SLE. Lupus 2019; 28:304-316. [PMID: 30712491 DOI: 10.1177/0961203319827646] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To investigate the diagnostic role of complement C3, complement C4, C-reactive protein (CRP), procalcitonin (PCT), white blood cell count (WBC), neutrophil CD64 (nCD64) index, lymphocyte subsets and their combination in differentiating bacterial infection from disease relapse in systemic lupus erythematosus (SLE). METHODS The above biomarkers in 36 hospitalized SLE patients with bacterial infection and 45 with lupus flare without infection were retrospectively studied. Bacterial infection was proven by positive cultures or typical clinical symptoms and signs combined with positive response to antibiotics. Lupus flare was defined as three points greater than their previous SLE disease activity index score. The diagnostic value for bacterial infection was evaluated by the areas under the receiver operating characteristic curves (AUC) and a novel bioscore system combining multiple biomarkers. RESULTS Increased CRP ( p = 0.049), WBC ( p = 0.028) and nCD64 index ( p = 0.034) were observed in the infected group and C3 ( p = 0.001), C4 ( p = 0.016) and B cells levels ( p = 0.010) were significantly reduced. The AUC for the above six biomarkers had no significant difference. Interestingly, the combination of nCD64 index, CRP, WBC, C3 and C4 improved significantly the diagnostic potential of SLE infection (AUC 0.783 (interquartile range 0.672, 0.871), p < 0.001; sensitivity 85.29% specificity 62.50%). In the bioscore system including the above six biomarkers, the bacterial infection rate in patients with bioscore ≤2, 3, 4, 5 and 6 were 0.00, 39.29, 59.10, 61.54 and 100.00%, respectively. CONCLUSION The combination of nCD64 index, C3, C4, CRP, WBC and B cells in a bioscore is useful to diagnose bacterial infection in SLE.
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Hoskin R, Berzuini C, Acosta-Kane D, El-Deredy W, Guo H, Talmi D. Sensitivity to pain expectations: A Bayesian model of individual differences. Cognition 2019; 182:127-139. [DOI: 10.1016/j.cognition.2018.08.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 08/29/2018] [Accepted: 08/31/2018] [Indexed: 02/08/2023]
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Guo H, Sciora P, Buiron L, Kooyman T. Design directions of optimized reactivity control systems in sodium fast reactors. NUCLEAR ENGINEERING AND DESIGN 2019. [DOI: 10.1016/j.nucengdes.2018.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ning JY, Zhang LQ, Guo H, Zhou SJ, Zhu ZS, Bao WJ. [Clinicpathologic studies of cases with tracheobronchopathia osteochondroplastica]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 2018; 47:857-858. [PMID: 30423610 DOI: 10.3760/cma.j.issn.0529-5807.2018.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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Liu J, Guo H, Rai P, Pinto L, Barron R. Medication persistence and risk of fracture among female Medicare beneficiaries diagnosed with osteoporosis. Osteoporos Int 2018; 29:2409-2417. [PMID: 30022254 DOI: 10.1007/s00198-018-4630-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 07/02/2018] [Indexed: 10/28/2022]
Abstract
UNLABELLED We examined the relationship between persistent osteoporosis medication use and fracture risk among female Medicare beneficiaries diagnosed with osteoporosis using Medicare claims, 2009-2012. Persistent use was associated with reduced risk of fracture and significantly lower total health care costs in the follow-up period. Results were consistent using different analytical methods. INTRODUCTION This study aimed to examine the relationship between medication persistence and fracture risk among female Medicare beneficiaries diagnosed with osteoporosis. METHODS Elderly female Medicare beneficiaries diagnosed with osteoporosis and initiated on osteoporosis medication January 1, 2009-June 30, 2011, were included. Persistent medication use was defined as continuous use (no gap ≥ 60 days) for 1 year or longer. The key outcome was fragility fracture. A difference-in-difference analysis was performed at the log scale of fracture rate using a Poisson regression model with months 1-6 before medication initiation as the pre-initiation period and up to 18 months after as the post-initiation period. Total health care costs were compared using a similar approach. Sensitivity analyses were conducted using different pre- and post-initiation periods. RESULTS The study included 294,369 patients; 32.9% were persistent osteoporosis medication users and 67.1% non-persistent (< 12 months continuous use). Fracture incidence rates were 16.2 per 100 patient-years pre-initiation and 4.1 post-initiation for persistent users; corresponding rates for non-persistent users were 19.0 and 7.3 per 100 patient-years. The adjusted post-/pre-initiation fracture rate ratios were 0.284 for persistent and 0.411 for non-persistent users. The ratio of the two rate ratios was 0.692 (persistent vs. non-persistent, p < 0.0001), suggesting a significantly greater fracture rate reduction for persistent users. Adjusted cost ratios were significantly lower for persistent users. Sensitivity analyses results were similar. CONCLUSIONS Persistent use of osteoporosis medications was associated with reduced risk of fracture and significantly lower total health care costs. Payers and patients would benefit from interventions aimed at improving medication persistence.
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El Asmar M, Zhang J, Caushi J, Ji Z, Anagnostou V, Cottrell T, Chan H, Suri P, Guo H, Marrone K, Naidoo J, Merghoub T, Chaft J, Hellmann M, Taube J, Brahmer J, Forde P, Velculescu V, Pardoll D, Ji H, Smith K. MA04.11 Neoantigen Targeting and T Cell Reshaping in Resectable NSCLC Patients Treated with Neoadjuvant PD-1 Blockade. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sui X, Liu T, Huang Q, Hou Y, Wang Y, Kang G, Guo H, Li N, Li Y, Wang Z, Wang J. P2.09-29 Automatic Lung Cancer Staging from Medical Reports Using Natural Language Processing. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zeng P, Lyu XP, Guo H, Cheng HR, Jiang F, Pan WZ, Wang ZW, Liang SW, Hu YQ. Causes of ozone pollution in summer in Wuhan, Central China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 241:852-861. [PMID: 29913412 DOI: 10.1016/j.envpol.2018.05.042] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 05/12/2018] [Accepted: 05/14/2018] [Indexed: 05/16/2023]
Abstract
In August 2016, continuous measurements of volatile organic compounds (VOCs) and trace gases were conducted at an urban site in Wuhan. Four high-ozone (O3) days and twenty-seven non-high-O3 days were identified according to the China's National Standard Level II (∼100 ppbv). The occurrence of high-O3 days was accompanied by tropical cyclones. Much higher concentrations of VOCs and carbon monoxide (CO) were observed on the high-O3 days (p < 0.01). Model simulations revealed that vehicle exhausts were the dominant sources of VOCs, contributing 45.4 ± 5.2% and 37.3 ± 2.9% during high-O3 and non-high-O3 days, respectively. Both vehicle exhausts and stationary combustion made significantly larger contributions to O3 production on high-O3 days (p < 0.01). Analysis using a chemical transport model found that local photochemical formation accounted for 74.7 ± 5.8% of the daytime O3, around twice the regional transport (32.2 ± 5.4%), while the nighttime O3 was mainly attributable to regional transport (59.1 ± 9.9%). The local O3 formation was generally limited by VOCs in urban Wuhan. To effectively control O3 pollution, the reduction ratio of VOCs to NOx concentrations should not be lower than 0.73, and the most efficient O3 abatement could be achieved by reducing VOCs from vehicle exhausts. This study contributes to the worldwide database of O3-VOC-NOx sensitivity research. Its findings will be helpful in formulating and implementing emission control strategies for dealing with O3 pollution in Wuhan.
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Zhong H, Wang Y, Hu J, Guo J, Shang Y, Zheng M, Zhao J, Li Y, Xie J, Guo H, Hu J, Wang A, Wang W, Shi W, Wang K, Yao M. P3.12-14 Genomic Profiling of Chinese Small Cell Lung Cancer and the Implications for Therapy. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ebert B, Walter K, Maury J, Lang C, Förster J, Blank L, Czarnotta E, Knuf C, Jacobsen S, Guo H, Lewandowski A, Polakowski T. Metabolic engineering of Saccharomyces cerevisiae
for cyclic triterpenoid production. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Zhang P, Du HB, Tong GD, Li XK, Sun XH, Chi XL, Xing YF, Zhou ZH, Li Q, Chen B, Wang H, Wang L, Jin H, Mao DW, Wang XB, Wu QK, Li FP, Hu XY, Lu BJ, Yang ZY, Zhang MX, Shi WB, He Q, Li Y, Jiang KP, Xue JD, Li XD, Jiang JM, Lu W, Tian GJ, Hu ZB, Guo JC, Li CZ, Deng X, Luo XL, Li FY, Zhang XW, Zheng YJ, Zhao G, Wang LC, Wu JH, Guo H, Mi YQ, Gong ZJ, Wang CB, Jiang F, Guo P, Yang XZ, Shi WQ, Yang HZ, Zhou Y, Sun NN, Jiao YT, Gao YQ, Zhou DQ, Ye YA. Serum hepatitis B surface antigen correlates with fibrosis and necroinflammation: A multicentre perspective in China. J Viral Hepat 2018; 25:1017-1025. [PMID: 29624802 DOI: 10.1111/jvh.12903] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 02/22/2018] [Indexed: 12/20/2022]
Abstract
The kinetics of serum hepatitis B surface antigen (HBsAg) during the natural history of hepatitis B virus (HBV) infection has been studied, but the factors affecting them remain unclear. We aimed to investigate the factors affecting HBsAg titres, using data from multicentre, large-sized clinical trials in China. The baseline data of 1795 patients in 3 multicentre trials were studied, and the patients were classified into 3 groups: hepatitis B early antigen (HBeAg)-positive chronic HBV infection (n = 588), HBeAg-positive chronic hepatitis B (n = 596), and HBeAg-negative chronic hepatitis B (n = 611). HBsAg titres in the different phases were compared, and multiple linear progression analyses were performed to investigate the implicated factors. HBsAg titres varied significantly in different phases (P = .000), with the highest (4.60 log10 IU/mL [10%-90% confidence interval: 3.52 log10 IU/mL-4.99 log10 IU/mL]) in patients with HBeAg-positive chronic HBV infection. In all phases, age and HBV DNA were correlated with serum HBsAg level. In HBeAg-positive chronic hepatitis B patients, a negative correlation between HBsAg titres and fibrosis stage was observed. Alanine amonitransferase or necroinflammatory activity was also correlated with HBsAg titres in HBeAg-negative chronic hepatitis B patients. In conclusion, decreased HBsAg titres may be associated with advancing fibrosis in HBeAg-positive chronic hepatitis B patients or increased necroinflammation in those with HBeAg-negative chronic hepatitis B. Our findings may help clinicians better understand the kinetics of HBsAg and provide useful insights into the management of this disease.
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Xu C, Guo H, Wang Q, Qu P, Bell K, Chen J. Interaction of obesity with smoking and inflammatory arthropathies increases the risk of periprosthetic joint infection: a propensity score matched study in a Chinese Han population. J Hosp Infect 2018; 101:222-228. [PMID: 29966755 DOI: 10.1016/j.jhin.2018.06.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 06/19/2018] [Indexed: 12/23/2022]
Abstract
BACKGROUND Although a large number of studies have identified obesity as an independent risk factor for the development of periprosthetic joint infection (PJI), the synergistic impacts of obesity with other factors on PJI remain unknown. Additionally, few studies have specifically explored the risk factors of PJI within a Chinese population. AIMS To investigate the association between obesity and PJI in a Chinese population, and identify synergistic impacts of obesity with other risk factors on the development of PJI. METHODS Three hundred and seven patients at a single institution with a diagnosis of PJI following primary total hip or knee arthroplasty, treated from 2008 to 2015, were identified. Each case was matched with two controls who did not develop PJI after primary total hip or knee arthroplasty in the study period using propensity score matching for several important parameters. Multi-variable logistic regression models were used to estimate the association between body mass index (BMI) and the risk of developing PJI. Interaction and stratified analyses were conducted according to age, sex, type of surgery, smoking status, alcohol use, diabetes, inflammatory arthritis, liver disease and renal disease. FINDINGS The multiple logistic analyses showed that obesity was associated with increased risk of PJI [odds ratio (OR) 2.48; 95% confidence interval (CI) 1.66-3.69]. When analysed as a continuous variable, BMI was also associated with increased risk of PJI (OR per 1 kg/m2 increase in BMI 1.08; 95% CI 1.02-1.14). In the interaction analysis, patients who were obese and smoked had a higher OR of developing PJI than non-smokers who were obese (OR 3.54 vs 1.55, P-value for interaction=0.031). Similarly, the OR was much higher for patients with both obesity and inflammatory arthritis than for patients who were obese with no history of inflammatory arthritis (OR 3.9 vs 1.55, P-value for interaction=0.029). No other significant interactions were found in the association between obesity and PJI. CONCLUSION Obesity is an independent risk factor for the development of PJI in the Chinese Han population. Surgeons should be aware that obese patients who smoke or have inflammatory arthritis are at additional increased risk of PJI.
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Liang S, Ren H, Guo H, Xing W, Liu C, Ji Y, Jiang H, Zhang P, Du M. Periodontal infection with Porphyromonas gingivalis induces preterm birth and lower birth weight in rats. Mol Oral Microbiol 2018; 33:312-321. [PMID: 29754448 DOI: 10.1111/omi.12227] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2018] [Indexed: 12/29/2022]
Abstract
Preterm birth (PTB), accompanied by low birth weight (LBW) or not, is a syndrome with tremendous risk factors and long-term health consequences for children. In recent decades, overwhelming studies have shown that periodontitis contributes to prematurity and LBW. This study was conducted to determine the link between maternal periodontitis and the pathogenesis of PTB and/or LBW through a rat infection model induced by Porphyromonas gingivalis, an important periodontopathic bacterium. The murine model was established by surgically ligating the left mandibular first molars and inoculating with P. gingivalis, and then all female rats initiated mating 6 weeks post infection. The gestational day and birth weight were recorded, and blood, amniotic fluid, and placental specimens were collected. Rats with a PTB and LBW newborns were observed in the P. gingivalis-infected group. Additionally, P. gingivalis infection significantly increased the maternal serum levels of interferon-γ and interleukin-1β, whereas no significant difference in the cytokine response was observed in the amniotic fluid. Moreover, with the translocation of P. gingivalis to placentas, remarkable changes in gestational tissues were found, followed by significantly enhanced expression of Toll-like receptor 2 (TLR2) as well as Fas and Fas ligand (FasL). These results support the concept that severe cases of periodontitis caused by P. gingivalis infection may be indicative of rats being more susceptible to PTB/LBW, probably through the activation of the TLR2 and Fas/FasL pathways within the placental tissues. This study gave us new insight into how maternal periodontopathogens might be linked to placental damage and premature pathogenesis.
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Jiang HH, Xiao Y, Hu CM, Guo H, Xia K. Effect of magnetization boundary condition on cavity magnon polariton of YIG thin film. NANOTECHNOLOGY 2018; 29:254002. [PMID: 29596061 DOI: 10.1088/1361-6528/aababf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Motivated by recent studies of cavity magnon polariton (CMP), we extended a previous theoretical work to generalize microwave transmission calculation with various magnetization boundary condition of YIG thin film embedded in cavity. It is found that numerical implementation given in this paper can be easily applied to other magnetization boundary condition and extended to magnetic multilayers. Numerical results show that ferromagnetic resonance mode of microwave transmission spectrum, which is absent in previous calculation, can be recovered by altering the pinning condition of surface spins. The demonstrated reliability of our theory opens attractive perspectives for studying CMP of thin film with complicated surface magnetization distribution and magnetic multilayers.
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Huang H, Sun J, Fu L, Wu J, Guo H, Yang C, Zheng X, Tang H, Sun L, Zhang X. A novel insertion mutation of CDSN responsible for hypotrichosis simplex of scalp in a Chinese family. Clin Exp Dermatol 2018; 43:722-723. [PMID: 29797736 DOI: 10.1111/ced.13547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2017] [Indexed: 11/29/2022]
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Kelly S, Jahanshad N, Zalesky A, Kochunov P, Agartz I, Alloza C, Andreassen OA, Arango C, Banaj N, Bouix S, Bousman CA, Brouwer RM, Bruggemann J, Bustillo J, Cahn W, Calhoun V, Cannon D, Carr V, Catts S, Chen J, Chen JX, Chen X, Chiapponi C, Cho KK, Ciullo V, Corvin AS, Crespo-Facorro B, Cropley V, De Rossi P, Diaz-Caneja CM, Dickie EW, Ehrlich S, Fan FM, Faskowitz J, Fatouros-Bergman H, Flyckt L, Ford JM, Fouche JP, Fukunaga M, Gill M, Glahn DC, Gollub R, Goudzwaard ED, Guo H, Gur RE, Gur RC, Gurholt TP, Hashimoto R, Hatton SN, Henskens FA, Hibar DP, Hickie IB, Hong LE, Horacek J, Howells FM, Hulshoff Pol HE, Hyde CL, Isaev D, Jablensky A, Jansen PR, Janssen J, Jönsson EG, Jung LA, Kahn RS, Kikinis Z, Liu K, Klauser P, Knöchel C, Kubicki M, Lagopoulos J, Langen C, Lawrie S, Lenroot RK, Lim KO, Lopez-Jaramillo C, Lyall A, Magnotta V, Mandl RCW, Mathalon DH, McCarley RW, McCarthy-Jones S, McDonald C, McEwen S, McIntosh A, Melicher T, Mesholam-Gately RI, Michie PT, Mowry B, Mueller BA, Newell DT, O'Donnell P, Oertel-Knöchel V, Oestreich L, Paciga SA, Pantelis C, Pasternak O, Pearlson G, Pellicano GR, Pereira A, Pineda Zapata J, Piras F, Potkin SG, Preda A, Rasser PE, Roalf DR, Roiz R, Roos A, Rotenberg D, Satterthwaite TD, Savadjiev P, Schall U, Scott RJ, Seal ML, Seidman LJ, Shannon Weickert C, Whelan CD, Shenton ME, Kwon JS, Spalletta G, Spaniel F, Sprooten E, Stäblein M, Stein DJ, Sundram S, Tan Y, Tan S, Tang S, Temmingh HS, Westlye LT, Tønnesen S, Tordesillas-Gutierrez D, Doan NT, Vaidya J, van Haren NEM, Vargas CD, Vecchio D, Velakoulis D, Voineskos A, Voyvodic JQ, Wang Z, Wan P, Wei D, Weickert TW, Whalley H, White T, Whitford TJ, Wojcik JD, Xiang H, Xie Z, Yamamori H, Yang F, Yao N, Zhang G, Zhao J, van Erp TGM, Turner J, Thompson PM, Donohoe G. Widespread white matter microstructural differences in schizophrenia across 4322 individuals: results from the ENIGMA Schizophrenia DTI Working Group. Mol Psychiatry 2018; 23:1261-1269. [PMID: 29038599 PMCID: PMC5984078 DOI: 10.1038/mp.2017.170] [Citation(s) in RCA: 412] [Impact Index Per Article: 68.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 05/02/2017] [Accepted: 06/07/2017] [Indexed: 12/15/2022]
Abstract
The regional distribution of white matter (WM) abnormalities in schizophrenia remains poorly understood, and reported disease effects on the brain vary widely between studies. In an effort to identify commonalities across studies, we perform what we believe is the first ever large-scale coordinated study of WM microstructural differences in schizophrenia. Our analysis consisted of 2359 healthy controls and 1963 schizophrenia patients from 29 independent international studies; we harmonized the processing and statistical analyses of diffusion tensor imaging (DTI) data across sites and meta-analyzed effects across studies. Significant reductions in fractional anisotropy (FA) in schizophrenia patients were widespread, and detected in 20 of 25 regions of interest within a WM skeleton representing all major WM fasciculi. Effect sizes varied by region, peaking at (d=0.42) for the entire WM skeleton, driven more by peripheral areas as opposed to the core WM where regions of interest were defined. The anterior corona radiata (d=0.40) and corpus callosum (d=0.39), specifically its body (d=0.39) and genu (d=0.37), showed greatest effects. Significant decreases, to lesser degrees, were observed in almost all regions analyzed. Larger effect sizes were observed for FA than diffusivity measures; significantly higher mean and radial diffusivity was observed for schizophrenia patients compared with controls. No significant effects of age at onset of schizophrenia or medication dosage were detected. As the largest coordinated analysis of WM differences in a psychiatric disorder to date, the present study provides a robust profile of widespread WM abnormalities in schizophrenia patients worldwide. Interactive three-dimensional visualization of the results is available at www.enigma-viewer.org.
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Yu HS, Guo H, Shen SS, Li XC, Zhang LP, Fan XF. [Prenatal diagnosis of women with an adverse reproductive history using both traditional karyotyping and SNP-array]. ZHONGHUA FU CHAN KE ZA ZHI 2018; 53:155-159. [PMID: 29609228 DOI: 10.3760/cma.j.issn.0529-567x.2018.03.003] [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 explore the occurrence of fetal chromosomal abnormalities among pregnant women with an adverse reproductive history using traditional karyotyping and single nucleotide polymorphism microarray (SNP-array) technology. Methods: Totally 94 in 2 163 (4.35%) cases of singleton pregnant women with an adverse reproductive history were performed amniocentesis in Jinhua Maternal and Child Health Care Hospital from June 2015 to June 2017. Traditional karyotyping and SNP-array were employed simultaneously for prenatal diagnosis, and the detection rates of the two methods were compared. Results: All of the 94 specimens were successfully analyzed, 11 cases were found with chromosomal anomaly, the overall detection rate was 11.7%(11/94). Seven (7.4%,7/94) abnormalities cases were detected by karyotyping, and 7(7.4%) by SNP-array. The karyotyping results of trisomy 21, and 45,X and the deletion of chromosome 13 were consistent with SNP-array. Only 3 (3.2%, 3/94) microdeletion/duplications (the sizes of duplications and deletions were between 422.4-1 708.4 kb) and 1 (1/4) loss of heterozygosity were detected by SNP-array, but were missed by karyotyping. Furthermore, 2 cases' copy number variation were found pathogenic gene related, while the other 2 were considered benign or variant of uncertain significance. Four cases (4/7) of abnormalities were detected by karyotyping, while confirmed balanced translocation and inversion by SNP-array. All patients were informed and chosen to continue the pregnancy. Conclusions: The rate of abnormal fetal chromosomes in pregnant women with an adverse reproductive history is still high. SNP-array is a new molecular genetic technique, and combined with use of traditional karyotyping, it could improve the detection rate of fetal chromosomal abnormalities and reduce abortion rate, thus providing a basis for genetic counseling and prenatal diagnosis.
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Sun J, Wei L, Lu Z, Mi S, Bao F, Guo H, Tu C, Zhu Y, Gong W. Retrospective study of porcine circovirus 3 infection in China. Transbound Emerg Dis 2018. [PMID: 29521007 DOI: 10.1111/tbed.12853] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PCV3 is an emerging swine virus associated with porcine dermatitis and nephropathy syndrome (PDNS), reproductive failure, respiratory diseases and systematic inflammation. Although first identified in 2015, the earliest case has been traced back to 2009 in the United States. In China, PCV3 infection was first detected in 2015, but little information has been available about its occurrence and prevalence there before 2015. In this study, 200 porcine clinical samples collected from 20 provinces, five autonomous regions and four municipalities between 1990 and 1999 were analysed for PCV3 infection by PCR. Results showed that 6.5% of the porcine samples collected from eight provinces and one autonomous region were PCV3 positive, with the earliest cases occurring in 1996. Nucleotide sequence analysis showed that PCV3 strains obtained in this study shared 96.6%-99.7% and 97.1%-99.4% sequence identity at the ORF2 gene and genome levels with all available reference strains from China and other countries, indicating the high genetic stability of PCV3 over the past 20 years.
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Yu C, Wang J, Wang F, Han X, Hu H, Yuan J, Miao X, Yao P, Wei S, Wang Y, Liang Y, Chen W, Zhang X, Guo H, Yang H, Tang Y, Zheng D, Wu T, He M. Inverse association between plasma homocysteine concentrations and type 2 diabetes mellitus among a middle-aged and elderly Chinese population. Nutr Metab Cardiovasc Dis 2018; 28:278-284. [PMID: 29337020 DOI: 10.1016/j.numecd.2017.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 11/16/2017] [Accepted: 11/27/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND AND AIMS Plasma homocysteine concentrations have been reported to be associated with type 2 diabetes mellitus (T2DM) with controversial findings. The aim of the present study was to investigate the association between plasma homocysteine concentrations and T2DM. METHODS AND RESULTS A cross-sectional study including 19,085 eligible participants derived from the Dongfeng-Tongji cohort was conducted. Plasma homocysteine concentrations were measured by Abbott Architect i2000 Automatic analyzer and T2DM was defined according to American Diabetes Association criteria. Logistic regression model was used to explore the association between plasma homocysteine concentrations and T2DM. The prevalence of T2DM was 19.0% in the whole population (mean age 62.9 years), 21.8% in males, and 17.1% in females. In the multivariable logistic regression analyses, compared with those in the lowest quintile, the OR (95% CI) of T2DM was 1.05 (0.92-1.21), 0.99 (0.86-1.14), 0.90 (0.78-1.05), and 0.77 (0.66-0.90) for quintile 2 to quintile 5 of homocysteine concentrations after adjustment for potential confounders (P for trend < 0.0001). Homocysteine concentrations were associated with decreased T2DM prevalence risk (OR = 0.88 per SD increase of homocysteine concentration; 95% CI: 0.84-0.93). A significant interaction between homocysteine concentrations and drinking status on T2DM prevalence risk was observed (P for interaction = 0.03). The inverse association of plasma homocysteine concentrations with T2DM prevalence risk was observed in non-drinkers but not in current drinkers. CONCLUSION Plasma homocysteine concentrations were inversely correlated with T2DM among a middle-aged and elderly Chinese population.
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