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Zhao Z, Li X, Liu Q, Ma T, Yuan H, Wang F, Wang Z, Liu R. 1538P Deleterious germline mutations in patients with pancreatic ductal adenocarcinoma. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2021] [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] Open
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Lu B, Liu RJ, Meng B, Yuan H, Zhai XJ, Li XY, Qin JL, Zheng JW, Wu GR, Chen JP. [Effect of fragmented sleep on postoperative cognitive function and central neuroinflammation]. ZHONGHUA YI XUE ZA ZHI 2020; 100:1341-1344. [PMID: 32375444 DOI: 10.3760/cma.j.cn112137-20191215-02734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of sleep fragmentation on perioperative neurocognitive disorders (PND) and central neuroinflammation by simulating sleep patterns of postoperative patients with sleep fragmentation in aged mice. Methods: Thirty-two elderly ICR mice were randomly divided into four groups (n=8): normal group (C), surgery group (S), fragmented sleep group (F), and surgery+fragmented sleep group (D). Fragmented sleep was conducted after internal fixation of tibia fractures, cognitive function was evaluated by novel object recognition (NOR) and fear conditioning (FC) test, and changes in expression of inflammatory cytokines in hippocampus were detected by ELISA. Results: NOR test: the recognition index (RI) of mice in group C, group S, group F and group D was 0.69±0.07, 0.48±0.07, 0.54±0.10 and 0.50±0.12, respectively. The RI of mice in group S, group F and group D was significantly lower than that in group C (t=4.885, 3.521 and 4.433, all P<0.01). There was no significant difference in RI between group S and group D (t=0.967 1, P>0.05). Contextual FC test: the freezing time of mice in group C, group S, group F and group D was(21.34±6.48), (13.83±4.26), (11.50±6.25) and (6.17±4.77) s, respectively. The freezing time of mice in group S, group F and group D was significantly lower than that in group C (t=2.722, 3.566, 5.496, P<0.05 or P<0.01). The freezing time of mice in group D was significantly lower than that in group S (t=2.774, P<0.05). Cue FC test: the freezing time of mice in group C, group S, group F and group D was (74.36±17.09), (43.91±9.71), (46.34±13.43) and (24.90±14.21) s, respectively. The freezing time of mice in group S, group F and group D was significantly lower than that in group C (t=4.393, 4.043 and 7.136, all P<0.01). The freezing time of mice in group D was significantly lower than that in group S (t=2.743, P<0.05). The levels of TNF-α, IL-6 and IL-1β in hippocampus of mice in group S, F and D were significantly higher than those in group C, while the levels of TNF-α and IL-6 in hippocampus of mice in group D were significantly higher than those in group S, with statistically significant differences (P<0.05 or P<0.01). Conclusion: Postoperative fragmented sleep aggravates postoperative cognitive impairment and increases the hippocampal neuroinflammation in aged mice.
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Shih Y, Yuan H, Zheng J, Pan M. 848 Clinical and immunological profiles of BP-specific IgE autoantibodies in bullous pemphigoid. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.864] [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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Hu J, Song Y, Wang D, Yuan H, Jiang H, Cheng J. Patterns of lingual split and lateral bone cut end and their associations with neurosensory disturbance after bilateral sagittal split osteotomy. Int J Oral Maxillofac Surg 2020; 49:595-601. [DOI: 10.1016/j.ijom.2019.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/09/2019] [Indexed: 10/25/2022]
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Guo L, Zhu B, Yuan H, Zhao W. Evaluation of serum neutrophil gelatinase-associated lipocalin in older patients with chronic kidney disease. Aging Med (Milton) 2020; 3:32-39. [PMID: 32232190 PMCID: PMC7099757 DOI: 10.1002/agm2.12098] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/05/2020] [Accepted: 02/09/2020] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVE Chronic kidney disease (CKD) is a major health-care burden all over the world, and aging is an important risk factor for end-stage renal disease (ESRD). Neutrophil gelatinase-associated lipocalin (NGAL) has been confirmed as a novel marker for early diagnosis of acute kidney injury. Other studies have found that NGAL takes part in the mechanisms of CKD progression. The aim of this study was to evaluate the expression of serum NGAL in CKD, particularly in elderly patients who rapidly progressed to end-stage renal failure. METHODS Serum NGAL, cystatin C, creatinine, urea, and other factors were evaluated in a cohort of 160 CKD patients (mean age 75.29 ± 12.08 years) with various etiologies. RESULTS Serum NGAL was closely related to cystatin C, creatinine, urea, and estimated glomerular filtration rate (eGFR). Special correlations between NGAL and, respectively, anemia and hypoalbuminemia were also found. The cutoff value of NGAL was calculated from Stage 2 to Stage 5. Receiver-operator curve analysis showed good area under the curve (>0.8) and high sensitivity (> 70%) on the cutoff value of NGAL. The NGAL levels increased progressively with the increasing of 2- and 5-year risk of ESRD using the Kidney Failure Risk Equations (KFRE). CONCLUSION In elderly patients with CKD, serum NGAL reflects renal impairment and presents a strong and independent risk marker for progression of ESRD.
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Lu H, Yang F, Liu W, Yuan H, Jiao Y. A robust model for estimating thermal conductivity of liquid alkyl halides. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2020; 31:73-85. [PMID: 31774315 DOI: 10.1080/1062936x.2019.1695225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
Thermal conductivity is an essential thermodynamic property in chemical engineering application. As a result, estimating the thermal conductivity of organic compounds is of significance in industry production. Alkyl halides are important organic intermediates and raw materials, but little investigations have been performed to estimate their thermal conductivity. In this study, the structures of compounds were optimized in Gaussian 09W and molecular descriptors were extracted by Dragon software. Finally, we developed a 6-descriptor linear quantitative structure-property relationship (QSPR) model to estimate the thermal conductivity of alkyl halides using the genetic function approximation (GFA) method. Validation proved that the developed model had goodness-of-fit, robustness and predictive ability. The r2pred and root-mean-square error (RMSEP) of prediction set for the model were equal to 0.9745 and 0.0035, respectively. Meanwhile, the applicability domain was visualized by means of the Williams plot. This study provides a new model for estimating the thermal conductivity of this important class of chemicals.
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Li J, Yuan H, Li Y, Zhao XQ, Chen L, Han MK, Liu CQ, Liu Q, Wang HT, Zhong Q, Feng B. [Spectrum analysis of pathological classification in 463 cases with nasal and paranasal sinuses malignant tumors]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2020; 33:1176-1180. [PMID: 31914269 DOI: 10.13201/j.issn.1001-1781.2019.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Indexed: 11/12/2022]
Abstract
Objective:The characteristics of pathological histological classification of nasal and paranasal sinuses malignant tumors in the past 10 years were analyzed, so as to provide possible basis, direction and ideas for the development of relevant effective treatment measures for nasal and paranasal sinuses malignant tumors in clinical practice. Method:The clinical data of patients with nasal and paranasal sinuses malignant tumors admitted to PLA general hospital from January 2009 to December 2018 were collected. Pathological types were retrospectively analyzed, and disease spectrum distribution, composition ratio and variation tendency of these patients were calculated. Result:Among the 463 patients, the overall pathological types in the top 5 were as follows: squamous cell carcinoma, adenoid cystadenocarcinoma, olfactory neuroblastoma, melanoma, adenocarcinoma. As for male patients, the pathological types in the top 5 were squamous cell carcinoma, adenoid cystic carcinoma, olfactory neuroblastoma, adenocarcinoma, neuroendocrine carcinoma and rhabdomyosarcoma were tied for fifth; the top 5 most common pathological types in female patients were squamous cell carcinoma, adenoid cystic carcinoma, melanoma, rhabdomyosarcoma, and adenocarcinoma. From 2009 to 2013, there were 183 patients with nasal and paranasal sinuses malignant tumors, the top 5 pathological types were squamous cell carcinoma, adenoid cystadenocarcinoma, olfactory neuroblastoma, melanoma, neuroendocrine carcinoma and rhabdomyosarcoma were tied for fifth; From 2014 to 2018, 280 patients with nasal and paranasal sinuses malignant tumors were diagnosed, the top 5 pathological types were squamous cell carcinoma, adenoid cystadenocarcinoma, melanoma, adenocarcinoma, and rhabdomyosarcoma. The ratio of the number of patients from 2009 to 2013 and 2014 to 2018 was about 0.65∶1. Malignant tumors of the nasal and paranasal sinuses tend to occur between the ages of 41 and 60, and the pathological types in the top 5 were squamous cell carcinoma,adenoid cystic carcinoma, adenocarcinoma, melanoma, neuroendocrine carcinoma. Conclusion:Malignant tumors of nasal cavity and sinus were more common in male, and the pathological types such as squamous cell carcinoma, adenoid cystic carcinoma, olfactory neuroblastoma were more common. All age groups have the disease, but the age group of 41-60 years old is the high-risk group of nasal and nasal sinus malignant tumors. However, the incidence rate of melanoma has gradually increased in the past five years, which needs to be paid more attention to.
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Liu JJ, Lu L, Hu FQ, Yuan H, Xu Q, Qin YF, Gong JH. Methylene blue attenuates renal ischemia-reperfusion injury by negative regulation of NLRP3 signaling pathway. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 22:2847-2853. [PMID: 29771438 DOI: 10.26355/eurrev_201805_14986] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the effect of methylene blue (MB) on renal ischemia-reperfusion (IR) injury in mice and its possible relevant mechanisms. MATERIALS AND METHODS A total of 30 male C57/BL6 mice aged 4 months old were randomly divided into the following three groups: Sham group (n=10), IR group (n=10), and MB group (n=10). Mice in MB group were treated with gavage continuously using methylene blue solution (dosage: 25 mg·kg-1·d-1) until they were 7 months old. Mice in the other two groups were administrated with the same amount of normal saline for gavage. After that, the abdomen of mice in Sham group was opened and closed, and bilateral renal pedicles of mice in IR group and MB group were occluded using a micro-artery clamp for 45 min for modeling. After modeling, the renal tissues and blood samples of mice were taken for detection. The levels of serum creatinine (Scr), blood urea nitrogen (BUN), and malondialdehyde (MDA), and activity of superoxide dismutase (SOD) in mice in each experimental group were detected and statistically analyzed, respectively. The degree of renal tubular necrosis in renal tissues of mice was observed under an optical microscope. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of inflammatory factors [interleukin-1β (IL-1β), IL-18, IL-10 and transforming growth factor-β1 (TGF-β1)] in renal tissues of mice in each experimental group, followed by relevant statistical analyses. The expressions of relevant proteins [NACHT, LRR, and PYD domains-containing protein 3 (NLRP3), nuclear factor-κB (NF-κB), caspase-1, pro-IL-1β, and IL-1β] in renal tissues of mice in each experimental group were detected via Western blotting, and the gray value of each band was detected for statistical analysis. RESULTS It was found in this experimental study that Scr and BUN levels in MB group were significantly lower than those in IR group, and the differences were statistically significant (p<0.05). Compared with that in IR group, the degree of renal tubular necrosis in MB group was significantly alleviated, and the difference was statistically significant (p<0.05). Compared with those in IR group, the levels of inflammatory factors (IL-1β and IL-18) in MB group were significantly decreased, but the levels of IL-10 and TGF-β1 in MB group were significantly increased, and the differences were statistically significant (p<0.05). Compared with those in IR group, the activity of SOD in MB group was increased significantly, but the level of MDA was decreased, and the differences were statistically significant (p<0.05). The protein expressions of NLRP3, NF-κB, caspase-1, and pro-IL-1β in MB group were decreased compared with those in IR group, but the expression of IL-1β in MB group was increased, and the differences were statistically significant (p<0.05). CONCLUSIONS We showed that methylene blue can alleviate the apoptosis and inflammatory response induced by renal IR injury in mice, and its relevant mechanism may be related to the fact that methylene blue can negatively regulate NLRP3 signaling pathway.
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Liu K, Cui K, Feng H, Li R, Lin H, Chen Y, Zhang Y, Chen Z, Yuan H, Li M, Wang T, Lan R, Liu J, Rao K, Wen B. JTE‐013 supplementation improves erectile dysfunction in rats with streptozotocin‐induced type Ⅰ diabetes through the inhibition of the rho‐kinase pathway, fibrosis, and apoptosis. Andrology 2019; 8:497-508. [PMID: 31610097 DOI: 10.1111/andr.12716] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 09/23/2019] [Accepted: 10/09/2019] [Indexed: 12/29/2022]
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Liu Y, Xu YH, Xu J, Huang XY, Yuan H, Bian C. [Primary gastric malignant melanoma: a case report]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2019; 41:293-294. [PMID: 31014055 DOI: 10.3760/cma.j.issn.0253-3766.2019.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Emtenani S, Yuan H, Lin C, Pan M, Hundt JE, Schmidt E, Komorowski L, Stanley JR, Hammers CM. Normal human skin is superior to monkey oesophagus substrate for detection of circulating BP180-NC16A-specific IgG antibodies in bullous pemphigoid. Br J Dermatol 2019; 180:1099-1106. [PMID: 30315657 PMCID: PMC6462259 DOI: 10.1111/bjd.17313] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2018] [Indexed: 01/21/2023]
Abstract
BACKGROUND Bullous pemphigoid (BP) is the most common autoimmune subepidermal blistering skin disease. Two antigens have been identified as targets of circulating autoantibodies (autoAbs) - BP180 and BP230 - with BP180 being a critical transmembrane adhesion protein of basal keratinocytes of the epidermis. The noncollagenous domain 16A (NC16A) of BP180 is the immunodominant epitope in patients with BP, and anti-BP180-NC16A IgG antibodies (Abs) correlate to disease activity. Routine serological testing and follow-up of BP relies on indirect immunofluorescence (IIF) of serum Abs, commonly performed on monkey oesophagus (ME), and/or enzyme-linked immunosorbent assay (ELISA) testing on recombinantly produced fragments of BP180 and BP230 (BP180-NC16A, BP230-C/N). OBJECTIVES To determine if NC16A epitopes are well represented on ME substrate. METHODS Sera from different BP cohorts were tested by IIF on ME and normal human skin (NHS). To confirm findings, affinity-purified anti-BP180-NC16A/BP230 polyclonal Abs and recombinant anti-BP180-NC16A/BP230 monoclonal antibodies (mAbs) were used. RESULTS For sensitive detection of BP180-NC16A-specific IgG Abs, sections of NHS are superior to the widely used ME. Confirmation comes from polyclonal affinity-purified anti-BP180-NC16A/BP230 Abs, and by mAbs cloned from a patient with active BP. CONCLUSIONS Use of NHS is preferable over ME in routine IIF testing for BP. These results are of clinical relevance because anti-BP180-NC16A IgG titres are correlated to disease activity and detecting them reliably is important for screening, diagnosis and follow-up of patients with BP.
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Shih Y, Yuan H, Zheng J, Pan M. 020 Profile of BP180 and BP230-specific IgE autoantibodies in bullous pemphigoid. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Yuan H, Pan M. 025 Analysis of the related factors that leading to the resistance of topical treatment for bullous pemphigoid patients. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hou FQ, Yin YL, Zeng LY, Shang J, Gong GZ, Pan C, Zhang MX, Yin CB, Xie Q, Peng YZ, Chen SJ, Mao Q, Chen YP, Mao QG, Zhang DZ, Han T, Wang MR, Zhao W, Liu JJ, Han Y, Zhao LF, Luo GH, Zhang JM, Peng J, Tan DM, Li ZW, Tang H, Wang H, Zhang YX, Li J, Zhang LL, Chen L, Jia JD, Chen CW, Zhen Z, Li BS, Niu JQ, Meng QH, Yuan H, Sun YT, Li SC, Sheng JF, Cheng J, Sun L, Wang GQ. [Clinical effect and safety of pegylated interferon-α-2b injection (Y shape, 40 kD) in treatment of HBeAg-positive chronic hepatitis B patients]. ZHONGHUA GAN ZANG BING ZA ZHI = ZHONGHUA GANZANGBING ZAZHI = CHINESE JOURNAL OF HEPATOLOGY 2019; 25:589-596. [PMID: 29056008 DOI: 10.3760/cma.j.issn.1007-3418.2017.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To investigate the clinical effect and safety of long-acting pegylated interferon-α-2b (Peg-IFN-α-2b) (Y shape, 40 kD) injection (180 μg/week) in the treatment of HBeAg-positive chronic hepatitis B (CHB) patients, with standard-dose Peg-IFN-α-2a as positive control. Methods: This study was a multicenter, randomized, open-label, and positive-controlled phase III clinical trial. Eligible HBeAg-positive CHB patients were screened out and randomized to Peg-IFN-α-2b (Y shape, 40 kD) trial group and Peg-IFN-α-2a control group at a ratio of 2:1. The course of treatment was 48 weeks and the patients were followed up for 24 weeks after drug withdrawal. Plasma samples were collected at screening, baseline, and 12, 24, 36, 48, 60, and 72 weeks for centralized detection. COBAS® Ampliprep/COBAS® TaqMan® HBV Test was used to measure HBV DNA level by quantitative real-time PCR. Electrochemiluminescence immunoassay with Elecsys kit was used to measure HBV markers (HBsAg, anti-HBs, HBeAg, anti-HBe). Adverse events were recorded in detail. The primary outcome measure was HBeAg seroconversion rate after the 24-week follow-up, and non-inferiority was also tested. The difference in HBeAg seroconversion rate after treatment between the trial group and the control group and two-sided confidence interval (CI) were calculated, and non-inferiority was demonstrated if the lower limit of 95% CI was > -10%. The t-test, chi-square test, or rank sum test was used according to the types and features of data. Results: A total of 855 HBeAg-positive CHB patients were enrolled and 820 of them received treatment (538 in the trial group and 282 in the control group). The data of the full analysis set showed that HBeAg seroconversion rate at week 72 was 27.32% in the trial group and 22.70% in the control group with a rate difference of 4.63% (95% CI -1.54% to 10.80%, P = 0.1493). The data of the per-protocol set showed that HBeAg seroconversion rate at week 72 was 30.75% in the trial group and 27.14% in the control group with a rate difference of 3.61% (95% CI -3.87% to 11.09%, P = 0.3436). 95% CI met the non-inferiority criteria, and the trial group was non-inferior to the control group. The two groups had similar incidence rates of adverse events, serious adverse events, and common adverse events. Conclusion: In Peg-IFN-α regimen for HBeAg-positive CHB patients, the new drug Peg-IFN-α-2b (Y shape, 40 kD) has comparable effect and safety to the control drug Peg-IFN-α-2a.
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Duan R, van Dijk LA, Barbieri D, de Groot F, Yuan H, de Bruijn JD. Accelerated bone formation by biphasic calcium phosphate with a novel sub-micron surface topography. Eur Cell Mater 2019; 37:60-73. [PMID: 30687909 DOI: 10.22203/ecm.v037a05] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Osteoinductive calcium phosphate (CaP) bone grafts have equivalent performance to autografts in repairing critical-size bone defects. The osteoinductive potential of CaP is linked to the size of the surface topographical features. In the present study, two novel biphasic calcium phosphate (BCP) bone grafts were synthesised with either sub-micron- (BCP<µm) or micron-scale (BCPµm) needle-shaped surface topography and compared to dimensionally similar tricalcium phosphate (TCP) with grain-shaped surface structures (TCP<µm and TCPµm). To clarify the possible function of the surface morphology (needle-like vs. grain-like) in initiating bone formation, the four CaP test materials were physicochemically characterised and implanted for 12 weeks in the dorsal muscle of beagles. The sub-micron needle-shaped topography of BCP<µm triggered earlier bone formation (3-6 weeks) as compared to the grain-shaped surface topography of TCP<µm, which formed bone at 6-9 weeks. After 12 weeks, the amount of induced bone formation in both materials was equivalent, based on histomorphometry. The micron-sized needle-shaped surface topography of BCPµm led to limited formation of new bone tissue, whereas its counterpart, TCPµm with grain-shaped surface topography, failed to trigger de novo bone formation. The relative strength of the parameters affecting CaP-driven bone induction was as follows: surface feature size > surface feature morphology > substrate chemistry. BCP materials with needle-shaped sub-micron surface topography gave rise to accelerated bone formation and slower rate of resorption than a comparable TCP. These characteristics may be translated to improve bone healing in orthotopic defects.
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Yuan H, Pan M. Antibody reactive to a novel autoantigen on the nondesmosomal keratinocyte surfaces leads to herpetiform pemphigus. Br J Dermatol 2019; 180:22. [PMID: 30604537 DOI: 10.1111/bjd.16888] [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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Pei X, Lai S, He X, Masembe NP, Yuan H, Yong Z, Zhu B, Wu J, Zhao W. Mild cognitive impairment in maintenance hemodialysis patients: a cross-sectional survey and cohort study. Clin Interv Aging 2018; 14:27-32. [PMID: 30587951 PMCID: PMC6304252 DOI: 10.2147/cia.s178854] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Introduction Few studies focused on mild cognitive impairment (MCI) in maintenance hemodialysis (MHD) patients. This study was conducted to survey the prevalence, the potent risk factors of MCI in MHD patients, and further observe the progress of MCI in a period of 6 months. Methodology Mini-Mental State Examination, and Montreal Cognitive Assessment were used to assess cognitive condition. MHD patients were enrolled from The First Affiliated Hospital of Nanjing Medical University, who had a stable hemodialysis history for more than 3 months. Results Sixty-four MHD patients and 54 general subjects were finally included. The average age of both groups was more than 60 years. The prevalence of MCI in the MHD group was significantly higher than that in general population (60.9% vs 29.6%, P<0.05). Spearman correlation analysis indicated that MCI was related to age, comorbidities, education years, uric acid, serum albumin, and blood pressure. The prevalence and severity of MCI in the MHD group remained unchanged during the 6 months (prevalence: 59.5%–66.6%, MoCA scores: 22.9–22.5). Conclusion MHD patients sustain a fairly high prevalence of MCI. Multiple risk factors influence the incidence and progression of MCI in MHD patients. More attention should be paid to this special population.
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Yuan H, Zhang X, Zhang Q, Wang Y, Wang S, Li Y, Zhang Y, Jing J, Qiu J, Wang Z, Leng L. Comparative transcriptome profiles of Lindian chicken eyelids identify melanin genes controlling eyelid pigmentation. Br Poult Sci 2018; 60:15-22. [PMID: 30421986 DOI: 10.1080/00071668.2018.1544414] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
1. During the long history of chicken domestication, eyelid colour, like skin colour and shank colour, has been one of the physical traits of Chinese indigenous chickens that influence consumer buying behaviour. In China, the Lindian chicken, which has coloured feathers, is renowned for the appetizing flavour of its meat and eggs, and its eyelid colours vary from deep (black) to light shades (light yellow). 2. To investigate genes involved in eyelid colour, the expression profiles of black and light-yellow eyelids of Lindian chickens were analysed with transcriptome sequencing. 3. A total of 13 466 genes were detected in the eyelids, among which 14 were differentially expressed. Among these differentially expressed genes (DEGs), three key genes, premelanosome protein (PMEL), dopachrome tautomerase (DCT), and tyrosinase (TYR), encoded proteins that positively regulate melanogenesis and melanin deposition. PMEL, DCT and TYR were expressed much more strongly in the black eyelids than in the light-yellow eyelids. A Kyoto Encyclopedia of Genes and Genomes pathway analysis showed that tyrosine metabolism and melanogenesis genes were significantly enriched among these DEGs (corrected P < 0.05). 4. In conclusion, melanin may be one of the main factors involved in Lindian chicken eyelid colour. Furthermore, these results provide a valuable resource for the future study of the physical traits of Lindian chicken.
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Pang Z, Yuan H, Zhang YT, Packirisamy M. Guest Editorial Health Engineering Driven by the Industry 4.0 for Aging Society. IEEE J Biomed Health Inform 2018. [DOI: 10.1109/jbhi.2018.2874081] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Westmoreland C, Cooper S, Guo J, Li J, Middleton A, Reynolds J, Peng S, van de Water B, White A, Yuan H, Zhang Q. Mitochondrial toxicity and oxidative stress: Defining the tipping point between adaptive and adverse effects for consumer safety risk assessment. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.1138] [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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Merzari E, Yuan H, Kraus A, Obabko A, Fischer P, Solberg J, Lee S, Lai J, Delgado M, Hassan Y. High-Fidelity Simulation of Flow-Induced Vibrations in Helical Steam Generators for Small Modular Reactors. NUCL TECHNOL 2018. [DOI: 10.1080/00295450.2018.1490124] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Xu Z, Wang L, Yuan H, Wang S, Zhou X. Fluorinated Mesoporous Anatase TiO2 Microspheres with High Surface and Enhanced Photocatalytic Activity for the Degradation of Methyl Orange. KINETICS AND CATALYSIS 2018. [DOI: 10.1134/s0023158418040158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Li M, Gan Y, Fan C, Yuan H, Zhang X, Shen Y, Wang Q, Meng Z, Xu D, Tu H. Hepatitis B virus and risk of non-Hodgkin lymphoma: An updated meta-analysis of 58 studies. J Viral Hepat 2018. [PMID: 29532605 DOI: 10.1111/jvh.12892] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Previous studies have focused on the relationship between hepatitis B virus (HBV) infection and non-Hodgkin lymphoma (NHL). However, the results remain inconsistent and somehow conflicting in different subgroups. The aim of this study was to combine the findings of independent studies to comprehensively assess the association between HBV and NHL using a meta-analysis. Relevant studies were identified through structured keyword searches in PubMed, EMBASE and the China National Knowledge Infrastructure (CNKI) database, and 58 studies with a total of 53 714 NHL cases and 1 778 591 controls were finally included. Pooled estimates indicated a significantly increased NHL risk in HBV-infected individuals (summary odds ratio [sOR]: 2.50; 95% confidence interval [CI]: 2.20-2.83) regardless of the study design (case-control studies: sOR: 2.47; 95% CI: 2.16-2.82; cohort studies: sOR: 2.64; 95% CI: 1.78-3.91). Considerable heterogeneity was observed across studies that was primarily attributed to the NHL subtypes (meta-regression: P < .05). Overall, B-cell NHL (sOR: 2.46; 95% CI: 1.97-3.07) presented a stronger association with HBV infection than T-cell NHL (sOR: 1.67; 95% CI: 1.34-2.10). Within the B-cell NHL subtypes, HBV infection was significantly associated with diffuse large B-cell lymphoma (DLBCL, sOR: 2.06; 95% CI: 1.48-2.88) and follicular lymphoma (FL, sOR: 1.54; 95% CI: 1.11-2.12), but not with chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL) and Burkitt lymphoma. The results of this meta-analysis support a positive link between HBV infection and NHL development. Further investigations for the mechanisms underlying HBV-induced NHL are warranted.
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Cheng BJ, Nie XM, Zeng XL, Yuan H, Ma X, Zhao YX, Zhou YJ. [Expression of platelet miR-223 in coronary artery disease patients and its clinical significance]. ZHONGHUA YI XUE ZA ZHI 2018; 98:1766-1770. [PMID: 29925156 DOI: 10.3760/cma.j.issn.0376-2491.2018.22.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the correlation of the expression of platelet microRNA-223 (miR-223) with the degree of platelet activation and the severity of coronary lesions in patients with coronary artery disease (CAD). Methods: A total of 204 consecutive patients underwent coronary artery angiography (CAG) at Beijing Anzhen Hospital between April and December 2016 were enrolled. According to CAG results, all the patients were divided into two groups: 112 patients in CAD group and 92 patients in control group. Real-time fluorescent quantitative PCR was used to detect the expression level of platelet miR-223 and mRNA of its target gene P2Y12. Flow cytometry was performed to detect the expression of platelet associated complement-1 (PAC-1). Results: Compared with control group, the expression level of platelet miR-223 in CAD group was higher [(1.27 (1.17, 1.32) vs 0.73 (0.64, 0.79), P<0.001], while the expression level of P2Y12 mRNA was lower [0.75 (0.51, 0.96) vs 1.00 (0.80, 1.64), P<0.001]. The positive expression rate of PAC-1 of CAD group was higher than that of control group (P<0.001). The expression level of platelet miR-223 was negatively correlated with the expression of P2Y12 (r=-0.39, P=0.02), but positively correlated with the expression of PAC-1 (r=0.50, P<0.001). The platelet miR-223 expression level had a positive correlation with the Gensini score in CAD group (r=0.90, P<0.001), but had no significant correlation with platelet aggregation (r=-0.06, P=0.36). Conclusion: The expression level of platelet miR-223 in patients with CAD may be an indicator for monitoring platelet activation and assessing the severity of CAD.
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Yuan H, Gornushkin IB, Gojani AB, Wang XH, Rong MZ. Laser-induced plasma imaging for low-pressure detection. OPTICS EXPRESS 2018; 26:15962-15971. [PMID: 30114849 DOI: 10.1364/oe.26.015962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
A novel technique based on laser induced plasma imaging is proposed to measure residual pressure in sealed containers with transparent walls, e.g. high voltage vacuum interrupter in this paper. The images of plasma plumes induced on a copper target at pressure of ambient air between 10-2Pa and 105Pa were acquired at delay times of 200ns, 400ns, 600ns and 800ns. All the plasma images at specific pressures and delay times showed a good repeatability. It was found that ambient gas pressure significantly affects plasma shape, plasma integral intensities and expansion dynamics. A subsection characteristic method was proposed to extract pressure values from plasma images. The method employed three metrics for identification of high, intermediate and low pressures: the distance between the target and plume center, the integral intensity of the plume, and the lateral size of the plume, correspondingly. The accuracy of the method was estimated to be within 15% of nominal values in the entire pressure range between 10-2Pa and 105Pa. The pressure values can be easily extracted from plasma images in the whole pressure range, thus making laser induced plasma imaging a promising technique for gauge-free pressure detection.
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Duan HG, Lin ZH, Fan GK, Chen M, Wang HL, Yang BB, Yuan H. [Extraluminal foreign body originated from pharynx and esophagus: a series of 10 patients]. ZHONGHUA ER BI YAN HOU TOU JING WAI KE ZA ZHI = CHINESE JOURNAL OF OTORHINOLARYNGOLOGY HEAD AND NECK SURGERY 2018; 53:387-389. [PMID: 29764023 DOI: 10.3760/cma.j.issn.1673-0860.2018.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Carlson BW, Jones KR, Craft MA, Carlson JR, Deardeuff K, Tate LR, Byerly R, Ding L, Yuan H, Wenger M, Hershey LA. 0696 Memory Consolidation and Cerebral Oxygenation during Afternoon Naps in Older Adults with Amnestic Mild Cognitive Impairment. Sleep 2018. [DOI: 10.1093/sleep/zsy061.695] [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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Hu C, He X, Li X, Sun L, Zheng C, Liang Q, Lv Z, Huang Z, Qi K, Yuan H, Zhu X, Yang Y, Zhou Q, Yang Z. Comparative Study for the Association of Mitochondrial Haplogroup F+ and Metabolic Syndrome between Longevity and Control Population in Guangxi Zhuang Autonomous Region, China. J Nutr Health Aging 2018; 22:302-307. [PMID: 29380859 DOI: 10.1007/s12603-017-0915-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Our previous study suggested that mitochondrial haplogroup F (mtDNA F) was a longevity-associated biomarker, but the effect of mitochondrial haplogroup F on longevity individuals with metabolic syndrome (MetS) was not clear. Thus we explored the association between mtDNA F and MetS among longevity and control population in Guangxi Zhuang Autonomous Region, China. METHOD A total of 793 individuals consisting of 307 long-lived participants and 486 local healthy controls were involved in this study. Genotypes of mtDNA F were amplified by polymerase chain reaction and Sanger sequenced. MetS was defined according to the revised National Cholesterol Education Program's Adult Treatment Panel III (NCEP ATPIII ) criteria. RESULTS The prevalence of MetS in longevity group (28.0%) was higher than that (18.5%) in control group (P=0.002). Through the case-control stratify analysis, the prevalence of MetS in mtDNA F+ longevity individuals (29.8%) was 4.6 fold higher than that (5.3%) in local control group (P<0.001). However, after further longevity-only analysis, no association between MetS and mtDNA F+ in longevity group was observed (P=0.167). Following same analysis of two variables in control group, we found that the prevalence of MetS in mtDNA F- (95.8%) was higher than that in mtDNA F+ (5.3%); conversely, the prevalence of non-metabolic syndrome (NMetS) in mtDNA F+ (94.7%) was markedly higher than that in mtDNA F- (4.2%) (P<0.001). CONCLUSION We demonstrated that mtDNA F+ , as a molecuar biomarker, might not only confer beneficial effect to resistance against MetS but also function as a positive factor for long-life span among the population in Guangxi Zhuang Autonomous Region, China.
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Yang L, Lv Z, Xia W, Zhang W, Xin Y, Yuan H, Chen Y, Hu X, Lv Y, Xu Q, Weng X, Ni C. The effect of aspirin on circulating tumor cells in metastatic colorectal and breast cancer patients: a phase II trial study. Clin Transl Oncol 2017; 20:912-921. [PMID: 29243075 DOI: 10.1007/s12094-017-1806-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 11/09/2017] [Indexed: 12/13/2022]
Abstract
PURPOSE Aspirin could reduce the risk of cancer metastasis. Circulating tumor cells (CTCs) are a key factor of cancer metastasis, but no evidence has revealed how aspirin affects CTCs and its epithelial-mesenchymal transition (EMT). Here, we conducted a clinical trial to investigate how aspirin affects CTCs in metastatic colorectal cancer (MCC) and breast cancer patients (MBC). METHODS The trial is retrospective registered at clinicaltrials.gov (NCT02602938). The eligible patients are given 100 mg aspirin q.d. for 8 weeks, and CTCs are evaluated at baseline, 4 and 8 weeks for absolute number, phenotype (epithelial type, E+, mesenchymal type, M+, and biophenotypic type, B+), and vimentin expression. RESULTS Data on 21 MCC and 19 MBC patients are analyzed, and it revealed that the CTC numbers decreased with aspirin treatment in MCC (p < 0.001) but not MBC (p = 0.0532); besides, ratio of E+ CTCs increased (p = 0.037) and M+ CTCs decreased at 2 months in MCC (p = 0.013), but neither the ratio of E+ or M+ CTCs changes significantly in MBC; vimentin expression of M+ CTCs is higher than E+ and B+ CTCs either in MBC or MCC patients at baseline (p < 0.01); and aspirin suppresses the vimentin expression in M+ (p = 0.002)and B+ (p = 0.006) CTCs of MCC and M+ CTCs of MBC (p = 0.004); besides it find vimentin expression in B+ (p = 0.004) or M+ (p < 0.001), CTCs are markedly decreased in patients with total CTC numbers declined. CONCLUSION Aspirin could decrease CTCs numbers and block EMT transition in MCC patients and part of MBC patients.
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Yuan H, Peng L, Zhang Z. Memory and executive screening for detecting of cognitive impairment in obstructive sleep apnea. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.1058] [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: 10/18/2022]
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Yuan H, Pan M. Location of oral lesions predicts treatment resistance in pemphigus vulgaris. Br J Dermatol 2017; 177:1476-1477. [PMID: 29313939 DOI: 10.1111/bjd.15986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shaxika N, Sun ZG, Yuan H, Wang H. [Efficacy of 3D print guide technique in one stage posterior approach for the treatment of cervical and thoracic tuberculosis with kyphosis]. ZHONGHUA YI XUE ZA ZHI 2017; 97:3421-3427. [PMID: 29179285 DOI: 10.3760/cma.j.issn.0376-2491.2017.43.013] [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 application of 3D printing technology in the treatment of patients with cervical kyphosis and paraplegia in different segments of the cervical spine after one-stage debridement, bone graft fusion and pedicle screw fixation. Methods: From January 2008 to January 2017, a total of 31 patients with thoracolumbar tuberculosis were treated in the Department of Orthopaedics, the Xinjiang Uygur Autonomous Region people's Hospital.Lesions of the thoracic spine (T1-T4) in 8 cases, (C5-C7) in 10 cases, cervical and thoracic segment in 13 cases, involving a total of 2 cases of vertebral body in 7 cases, 3 cases of vertebral body in 14 cases, 4 cases of vertebral body. 3D printing group (group A) 12 cases, non 3D printing group (group B) of 19 cases.All cases were treated with a posterior approach to the treatment of the cervical spinal cord around the spinal cord.After taking regular anti tuberculosis drugs in 6-12 months, follow-up observation of correction of kyphosis and paraplegia recovery, blood sedimentation rate (ESR), C-reactive protein (CRP) changes. Results: All cases were followed up for at least 6 months. Twelve patients were treated with 3D printing technique before operation, and the operation was performed according to the preoperative plan.The diameter and length of pedicle screws, the direction of insertion, and the distance between the insertion point and the posterior midline of the pedicle screw were similar to those in the 3D.Three days after the operation, the effect of fracture reduction was satisfactory, and the position of pedicle screws was good.After 6 months of follow-up, the X-ray showed that the pedicle screws were in good position, and there was no loosening and fracture.All the patients were healed, and there was no segmental instability.3D printing group during surgery bleeding, operation time, postoperative drainage volume, compared with the non 3D print group of surgical results, 3D printing group significantly reduce the surgical trauma[(131±18) min vs (162±23), P<0.01; (528±34) ml vs (615±41) ml, P<0.01; (257±46) vs (327±56), P<0.01; (not grouping, before after operation), (64±42) mm/1 h vs (6±7) mm/1 h, P<0.01; CRP (not packet): (72±41) μg/L, (13±6) mm/1 h, P<0.01]. There was significant difference between two groups.The JOA scores of patients in the 3D group were better than those in the non 3D group after the operation in 1, 2 week and in 1, 3, and month.There was no significant difference between the two groups after the operation.Two groups of patients before and after correction of Cobb angle were satisfied, and no significant difference between the two groups.Cobb lost an average of 1 degrees angle correction.The spinal tuberculosis in this group were cured without serious complications. Conclusions: According to the cervical and thoracic tuberculous kyphosis and paraplegia severity, choose a posterior surgery can achieve effective cure, feasible thorough debridement with fixed spinal stability before and after the party obtained bone fusion and deformity correction in 3D technology to increase the accuracy and safety of operation, and can be provide more detailed preoperative, intuitive, three-dimensional, realistic personalized operation scheme.It can reduce the operation trauma, and achieve rapid recovery after operation.
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Xu W, Xiang C, Wang H, Yuan H, Zhao X, Xiao X. Effect of zoledronic acid therapy on postmenopausal osteoporosis between the Uighur and Han population in Xinjiang: An open-label, long-term safety and efficacy study. J Clin Pharm Ther 2017; 43:336-341. [PMID: 29114907 DOI: 10.1111/jcpt.12647] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 10/16/2017] [Indexed: 12/14/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Postmenopausal osteoporosis is becoming an urgent health problem in China. A once-yearly infusion of zoledronic acid can be very effective for the treatment of postmenopausal osteoporosis in significantly reducing the risk of hip, vertebral and other fractures. This study aimed to investigate zoledronic acid treatment on postmenopausal osteoporosis in Uighur and Han patients in Xinjiang province, China. METHODS A self-controlled and prospective trial design was adopted. A total of 155 Uighur and 151 Han patients were enrolled. All subjects received an intravenous infusion of zoledronic acid (5 mg) at day 0 (baseline) and at 12 months. Patients were followed up for 24 months; the bone mineral density (BMD) of the left total hip and L1-L4 vertebrae was measured at day 0 and at 24 months. RESULTS AND DISCUSSION BMD was significantly higher after zoledronic acid treatment compared with baseline levels in all patients, as assessed at 24 months. Moreover, the BMD of left total hip increased with 2.7% in the Han group was significantly higher than that of the Uighur group with 1.4% (left total hip, 95% CI: 2.6% to 2.8% in Han group vs 1.2% to 1.4% in Uighur group). The BMD of L1-L4 vertebrae increased with 2.2% in the Han group was significantly higher than that of the Uighur group with 1.6% (L1-L4 vertebrae, 95% CI, 2.0% to 2.4% in Han group vs 1.4% to 1.7% in Uighur group); P < .001. There was no significant difference in drug-related adverse effects between the two groups (P > .05). WHAT IS NEW AND CONCLUSION Zoledronic acid appears to be more effective in postmenopausal osteoporosis in Han than in Uighur subjects. The reasons for this require further investigation.
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Yuan H, Pan M. Endoscopic characteristics of oesophagus involvement in mucous membrane pemphigoid. Br J Dermatol 2017; 177:902-903. [PMID: 29052880 DOI: 10.1111/bjd.15804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Fujita Y, Aubert R, Walke P, Yuan H, Kenens B, Inose T, Steuwe C, Toyouchi S, Fortuni B, Chamtouri M, Janssen KPF, De Feyter S, Roeffaers MBJ, Uji-I H. Highly controllable direct femtosecond laser writing of gold nanostructures on titanium dioxide surfaces. NANOSCALE 2017; 9:13025-13033. [PMID: 28832041 DOI: 10.1039/c7nr04299j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A highly reproducible and controllable deposition procedure for gold nanostructures on a titanium dioxide (TiO2) surface using femtosecond laser light has been demonstrated. This is realized by precisely focusing onto the TiO2 surface in the presence of a pure gold ion solution. The deposition is demonstrated both in dot arrays and line structures. Thanks to the multi-photon excitation, we observe that the deposition area of the nanostructures can be confined to a degree far greater than the diffraction limited focal spot. Finally, we demonstrate that catalytic activity with visible light irradiation is enhanced, proving the applicability of our new deposition technique to the catalytic field.
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Peng JW, Yuan H, Tan XS. Crystal structure of the multiple antibiotic resistance regulator MarR from Clostridium difficile. Acta Crystallogr F Struct Biol Commun 2017; 73:363-368. [PMID: 28580925 PMCID: PMC5458394 DOI: 10.1107/s2053230x1700766x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/24/2017] [Indexed: 11/10/2022] Open
Abstract
Regulators of multiple antibiotic resistance (MarRs) are key players against toxins in prokaryotes. MarR homologues have been identified in many bacterial and archaeal species which pose daunting antibiotic resistance issues that threaten public health. The continuous prevalence of Clostridium difficile infection (CDI) throughout the world is associated with the abuse of antibiotics, and antibiotic treatments of CDI have limited effect. In the genome of C. difficile strain 630, the marR gene (ID 4913953) encodes a MarR protein. Here, MarR from C. difficile (MarRC.difficile) was subcloned and crystallized for the first time. MarRC.difficile was successfully expressed in Escherichia coli in a soluble form and was purified to near-homogeneity (>95%) by a two-step purification protocol. The structure of MarRC.difficile has been solved at 2.3 Å resolution. The crystal belonged to the monoclinic space group P43212, with unit-cell parameters a = b = 66.569, c = 83.654 Å. The structure reported reveals MarRC.difficile to be a dimer, with each subunit consisting of six α-helices and three antiparallel β-hairpins. MarRC.difficile shows high structural similarity to the MarR proteins from E. coli and Staphylococcus aureus, indicating that MarRC.difficile might be a DNA-binding protein.
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Mao QD, Zhang W, Zhao K, Cao B, Yuan H, Wei LZ, Song MQ, Liu XS. MicroRNA-455 suppresses the oncogenic function of HDAC2 in human colorectal cancer. ACTA ACUST UNITED AC 2017; 50:e6103. [PMID: 28538837 PMCID: PMC5479389 DOI: 10.1590/1414-431x20176103] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 04/05/2017] [Indexed: 12/22/2022]
Abstract
Colorectal cancer (CRC) is the fourth leading cause of cancer-induced mortality. Histone deacetylase 2 (HDAC2) is involved in prognosis and therapy of CRC. This study aimed to explore novel therapeutic targets for CRC. The alteration of HDAC2 expression in CRC tissues was estimated by qRT-PCR. After lentivirus transfection, HDAC2 knockdown was confirmed by western blot analysis. The effect of HDAC2 knockdown on cell proliferation was then assessed by 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Screened by TargetScan, microRNA (miR)-455 was predicted to bind to 3′UTR of HDAC2 and the prediction was verified by luciferase assay. Finally, cells were transfected, respectively, with miR-455 mimics or miR-455 negative control (miR-NC) and the expression of HDAC2, cell proliferation and apoptosis of transfected cells were respectively evaluated by western blot analysis, MTT assay and flow cytometry. Results showed that the HDAC2 expression was up-regulated in CRC tissues (P<0.05). HDAC2 knockdown significantly decreased cell viability at day 3 (P<0.05), day 4 (P<0.01), and day 5 (P<0.001) after infection. Then, miR-455 was verified to directly target HDAC2, resulting in a significant difference in luciferase activity (P<0.01). Moreover, miR-455 decreased the expression of HDAC2 (P<0.01). miR-455 remarkably decreased cell viability at day 3 (P<0.05), day 4 (P<0.01), and day 5 (P<0.001) after transfection while inducing cell apoptosis (P<0.001). In conclusion, miR-455 inhibited cell proliferation while inducing cell apoptosis by targeting HDAC2 in CRC cells.
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Lei DJ, Zhao G, Xie P, Li Y, Yuan H, Zou M, Niu JG, Ma XF. Analysis of genetic diversity of Leuciscus leuciscus baicalensis using novel microsatellite markers with cross-species transferability. GENETICS AND MOLECULAR RESEARCH 2017; 16:gmr-16-02-gmr.16029376. [PMID: 28481399 DOI: 10.4238/gmr16029376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We used next-generation sequencing technology to characterize 19 genomic simple sequence repeat (SSR) markers and 11 expressed sequence tag (EST) SSR markers from Leuciscus leuciscus baicalensis, a small freshwater fish that is widely distributed in Xinjiang, China. Primers were used to test for polymorphisms in three L. leuciscus baicalensis populations in Xinjiang. There were 4-27 (average 11.3) alleles (NA), the expected heterozygosity (HE) was 0.36-0.94 (average 0.75 ± 0.14), the observed heterozygosity (HO) was 0.37-1.00 (average 0.68 ± 0.18), and the polymorphism information content (PIC) was 0.31-0.93 (average 0.71). The averages of HE and PIC for the EST-SSR markers were slightly lower than for the genomic SSR markers. Genetic analysis of the three populations showed similar results for PIC, HE, and NA. Amplifications were performed in nine other species; the top three transferability values were for Rutilus lacustris (80%), Leuciscus idus (76.7%), and Phoxinus ujmonensis (63.3%), with the following average values: PIC (0.56, 4.46, and 0.52); NA (0.40, 3.00, and 0.32); and HO (0.44, 2.74, and 0.22), respectively. L. leuciscus baicalensis is one of the most important commercial fish in Xinjiang, but in recent years, fishery resources have decreased sharply owing to water conservation projects, unreasonable utilization, and invasion by alien species. These novel SSR markers are appropriate for studies involving fingerprinting, gene flow, genetic diversity, population structure, and molecular-assisted breeding, and could contribute to the conservation of L. leuciscus baicalensis.
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Guillaume O, Geven M, Sprecher C, Stadelmann V, Grijpma D, Tang T, Qin L, Lai Y, Alini M, de Bruijn J, Yuan H, Richards R, Eglin D. Surface-enrichment with hydroxyapatite nanoparticles in stereolithography-fabricated composite polymer scaffolds promotes bone repair. Acta Biomater 2017; 54:386-398. [PMID: 28286037 DOI: 10.1016/j.actbio.2017.03.006] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/02/2017] [Accepted: 03/06/2017] [Indexed: 11/24/2022]
Abstract
Fabrication of composite scaffolds using stereolithography (SLA) for bone tissue engineering has shown great promises. However, in order to trigger effective bone formation and implant integration, exogenous growth factors are commonly combined to scaffold materials. In this study, we fabricated biodegradable composite scaffolds using SLA and endowed them with osteopromotive properties in the absence of biologics. First we prepared photo-crosslinkable poly(trimethylene carbonate) (PTMC) resins containing 20 and 40wt% of hydroxyapatite (HA) nanoparticles and fabricated scaffolds with controlled macro-architecture. Then, we conducted experiments to investigate how the incorporation of HA in photo-crosslinked PTMC matrices improved human bone marrow stem cells osteogenic differentiation in vitro and kinetic of bone healing in vivo. We observed that bone regeneration was significantly improved using composite scaffolds containing as low as 20wt% of HA, along with difference in terms of osteogenesis and degree of implant osseointegration. Further investigations revealed that SLA process was responsible for the formation of a rich microscale layer of HA corralling scaffolds. To summarize, this work is of substantial importance as it shows how the fabrication of hierarchical biomaterials via surface-enrichment of functional HA nanoparticles in composite polymer stereolithographic structures could impact in vitro and in vivo osteogenesis. STATEMENT OF SIGNIFICANCE This study reports for the first time the enhance osteopromotion of composite biomaterials, with controlled macro-architecture and microscale distribution of hydroxyapatite particles, manufactured by stereolithography. In this process, the hydroxyapatite particles are not only embedded into an erodible polymer matrix, as reported so far in the literature, but concentrated at the surface of the structures. This leads to robust in vivo bone formation at low concentration of hydroxyapatite. The reported 3D self-corralling composite architecture provides significant opportunities to develop functional biomaterials for bone repair and tissue engineering.
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Yuan H, Zhu X, Wang X, Fang B, Shen S. Accelerated orthodontic tooth movement following local osteotomies in a rodent model. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.592] [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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Croes M, Kruyt MC, Loozen L, Kragten AH, Yuan H, Dhert WJ, Öner FC, Alblas J, Alblas J. Local induction of inflammation affects bone formation. Eur Cell Mater 2017; 33:211-226. [PMID: 28266689 DOI: 10.22203/ecm.v033a16] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
To explore the influence of inflammatory processes on bone formation, we applied a new in vivo screening model. Confined biological pockets were first created in rabbits as a response to implanted bone cement discs. These biomembrane pockets were subsequently used to study the effects of inflammatory stimuli on ectopic bone formation within biphasic calcium phosphate (BCP) constructs loaded with TNF-α, lipopolysaccharide (LPS) or lipoteichoic acid (LTA), all with or without bone morphogenetic protein (BMP)-2. Analysis of bone formation after 12 weeks demonstrated that the inflammatory mediators were not bone-inductive in combination with the BCP alone, but inhibited or enhanced BMP-induced bone formation. LPS was associated with a strong inhibition of bone formation by BMP-2, while LTA and TNF-α showed a positive interaction with BMP-2. Since the biomembrane pockets did not interfere with bone formation and prevented the leakage of pro-inflammatory compounds to the surrounding tissue, the biomembrane model can be used for in vivo approaches to study local inflammation in conjunction with new bone formation. Using this model, it was shown that the modulation of the inflammatory response could be beneficial or detrimental to the subsequent bone formation process. The co-delivery of inflammatory factors and bone-related growth factors should be further explored as a strategy to enhance the bone-forming efficacy of bone substitutes.
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Chatterjea A, LaPointe VL, Barradas A, Garritsen H, Yuan H, Renard A, van Blitterswijk CA, de Beor J. Cell aggregation enhances bone formation by human mesenchymal stromal cells. Eur Cell Mater 2017; 33:121-129. [PMID: 28198985 DOI: 10.22203/ecm.v033a09] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The amount of bone generated using current tissue engineering approaches is insufficient for many clinical applications. Previous in vitro studies suggest that culturing cells as 3D aggregates can enhance their osteogenic potential, but the effect on bone formation in vivo is unknown. Here, we use agarose wells to generate uniformly sized mesenchymal stromal cell (MSC) aggregates. When combined with calcium phosphate ceramic particles and a gel prepared from human platelet-rich plasma, we generated a tissue engineered construct which significantly improved in vivo bone forming capacity as compared to the conventional system of using single cells seeded directly on the ceramic surface. Histology demonstrated the reproducibility of this system, which was tested using cells from four different donors. In vitro studies established that MSC aggregation results in an up-regulation of osteogenic transcripts. And finally, the in vivo performance of the constructs was significantly diminished when unaggregated cells were used, indicating that cell aggregation is a potent trigger of in vivo bone formation by MSCs. Cell aggregation could thus be used to improve bone tissue engineering strategies.
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Yong Z, Pei X, Zhu B, Yuan H, Zhao W. Predictive value of serum cystatin C for acute kidney injury in adults: a meta-analysis of prospective cohort trials. Sci Rep 2017; 7:41012. [PMID: 28112204 PMCID: PMC5253621 DOI: 10.1038/srep41012] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 12/14/2016] [Indexed: 12/28/2022] Open
Abstract
The role of serum cystatin C (Scys) for the detection of acute kidney injury (AKI) has not been fully discussed. This meta-analysis was aimed to investigate the overall diagnostic accuracy of Scys for AKI in adults, and further identify factors affecting its performance. Studies before Sept. 2016 were retrieved from PubMed, Embase, Web of Science and the Cochrane Library. A total of 30 prospective cohort studies (involving 4247 adults from 15 countries, 982 patients occurring AKI) were included. The revised Quality Assessment for Studies of Diagnostic Accuracy (QUADAS-2) tools demonstrated no significant bias had influenced the methodological quality of the included studies. Scys showed a high predictive power for all-cause AKI, that the area under the receiver operating characteristic curve was 0.89. The detailed assessment parameters, such as sensitivity, specificity, positive likelihood ratio, negative likelihood ratio and diagnostic odds ratio for Scys were 0.82, 0.82, 4.6, 0.22 and 21, respectively. Although Scys could be slightly influenced by the following factors: settings, AKI diagnostic criteria, ethnicity, determination method, age and gender, these factors above did not reach statistically significance. In conclusion, Scys could be a vital promising marker to screen out AKI.
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Kong SF, Lv T, Sun X, Yuan H, Zhong JY, Li XR, Dai SZ. Suppressing stathmin-l can inhibit chkl protein expression and reduce the invasion and tumorigenicity of cervical cancer cells. EUR J GYNAECOL ONCOL 2017; 38:271-276. [PMID: 29953794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The purpose of this study was to evaluate the effects of stathmin-l on chkl protein expression in cervical cancer cells and the influ- ences on the cells' invasion and tumorigenicity. Suppressed stathmin-l expression in Hela cells and C33A cells by lentiviral vector were utilized. Real time PCR and Western blot were used to examine the expression of chkl. Cell proliferation and invasion were stud- ied using MTT assays and transwell migration assays.The differences of tumorigenicity in vivo were explored using xenograft experi- ments. In addition, stathmin-l expressions in 24 cervical cancer patients were studied without regional lymph nodes metastasis and 16 metastatic patients by immunohistochemistry assays and real time PCR. This study found downregulating stathmin-l reduced chkl ex- pressions and the proliferation and invasion in cervical cancer cells and reduced the tumorigenicity of tumor cells.
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95
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Wu WQ, Liu Y, Geng Q, Luo FW, Chen WB, Yuan H, Xie JS. [The prenatal genetic diagnosis of a family with complete androgen insensitivity syndrome]. ZHONGHUA YI XUE ZA ZHI 2016; 96:3793-3796. [PMID: 28057092 DOI: 10.3760/cma.j.issn.0376-2491.2016.47.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To identify the Androgen Receptor (AR) gene mutation of one family with complete androgen insensitivity syndrome (CAIS) and to establish the methods of prenatal genetic diagnosis for CAIS. Methods: The AR gene exons of the family were amplified by PCR and sequenced directly. Linkage analysis was performed by using the CAG repeats in the exon1 of AR gene to assure accuracy of the prenatal diagnosis. Results: We found a frameshift mutation c. 2546del A (p. Asn849Ile fsX34) in the exon7 of AR gene in the proband.The mutation had not been reported before.The mother of the proband went through two times prenatal genetic diagnosis for her next pregnancies, both fetuses were male and did not get the mutation.The results of the linkage analysis were consistent with the sequencing results. Conclusion: A novel AR mutations in a CAIS family have been confirmed. The method of prenatal genetic diagnosis was established, and worked effectively in the CAIS family.
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Wang Q, Yang H, Liu X, Dai L, Ma T, Qi J, Wong G, Peng R, Liu S, Li J, Li S, Song J, Liu J, He J, Yuan H, Xiong Y, Liao Y, Li J, Yang J, Tong Z, Griffin BD, Bi Y, Liang M, Xu X, Qin C, Cheng G, Zhang X, Wang P, Qiu X, Kobinger G, Shi Y, Yan J, Gao GF. Molecular determinants of human neutralizing antibodies isolated from a patient infected with Zika virus. Sci Transl Med 2016; 8:369ra179. [DOI: 10.1126/scitranslmed.aai8336] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 08/26/2016] [Accepted: 10/28/2016] [Indexed: 01/10/2023]
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97
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Yuan H, Hopkins M, Goldberg JD, Silberstein SD. Single-item migraine screening tests, self-reported bothersome headache or stripe pattern hypersensitivity? Acta Neurol Scand 2016; 134:277-83. [PMID: 26626126 DOI: 10.1111/ane.12539] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2015] [Indexed: 02/02/2023]
Abstract
BACKGROUND A simple screening tool may potentially help the migraine diagnosis in a primary care setting. The use of single-item tests, such as stripe pattern hypersensitivity test and self-reported bothersome headache (HA) question, as migraine screening tools have not been fully explored. METHODS Two hundred and fifty-four subjects (patients and companions) were randomly enrolled from an OB/GYN clinic (men 82, women 172; age 38 ± 14). They were instructed to rate the stripe sensitivity level (0-4) and to report any bothersome HA (yes/no). A brief structured HA interview was conducted to describe the HA characteristics and for migraine diagnosis based on the ICHD-IIIβ criteria. RESULTS In a multivariate model, bothersome HA question and stripe pattern hypersensitivity test were both significantly associated with EM+PM+CM (odds ratio: 24.0, P < 0.01 vs 2.6, P = 0.01) or EM (odds ratio: 16.2, P < 0.01 vs 3.0, P < 0.01). Bothersome HA question had a greater screening power than stripe pattern hypersensitivity for screening EM+PM+CM (area under the ROC curve: 0.84 [95% CI 0.78-0.89] vs 0.62 [95% CI 0.55-0.69]) or EM (area under the ROC curve: 0.80 [95% CI 0.73-0.86] vs 0.64 [95% CI 0.56-0.72]). CONCLUSION When performed in an OB/GYN clinic, self-reported bothersome HA question seemed more powerful than visual stripe pattern test in screening migraine thus could potentially be used as a single-item screening test.
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Yin X, Ma L, Li Y, Xu M, Wang W, Wang H, Yuan H, Du Y, Li S, Ma J, Jiang H, Wang L, Zhang W, Pan Y. Genetic variants of 20q12 contributed to non-syndromic orofacial clefts susceptibility. Oral Dis 2016; 23:50-54. [PMID: 27537108 DOI: 10.1111/odi.12570] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 07/29/2016] [Accepted: 08/14/2016] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Previous genomewide association studies (GWAS) identified a region near MAFB at chr20q12 associated with non-syndromic orofacial clefts (NSOC) susceptibility. However, whether other SNPs in this area could independently contribute to non-syndromic orofacial clefts in Chinese populations remained obscure. MATERIALS AND METHODS We selected 24 SNPs based on a haplotype-tagging SNP strategy and evaluated their associations with risk of non-syndromic orofacial clefts in a large-scale two-stage case-control study with 1278 cases and 1295 controls. Genotyping was performed with Sequenom and TaqMan assay. Associations between the SNPs and risk of non-syndromic orofacial clefts were estimated from unconditional logistic regression analyses. RESULTS Overall, six SNPs were found to be the susceptible factors of non-syndromic orofacial clefts. The most significant and independent SNP was rs6129653 (additive model of P value = 1.4E-06). In subgroup analysis, its significant associations with cleft lip only (CLO) and cleft lip and palate (CLP) were observed. Furthermore, in silico bioinformatics analysis indicated that rs6129653 was located in the transcriptionally active region and associated with MAFB expression in human brain tissues. CONCLUSIONS Rs6129653 was an independent locus of non-syndromic orofacial clefts among Chinese populations possibly due to its potential of distal transcriptional regulation of MAFB expression.
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Stapelfeldt WH, Yuan H, Strehl KE, Dryden JK. Abstract PR408. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492796.83672.a1] [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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Kong N, Hui M, Miao F, Yuan H, Du Y, Chen N. Mandibular incisive canal in Han Chinese using cone beam computed tomography. Int J Oral Maxillofac Surg 2016; 45:1142-6. [PMID: 27184354 DOI: 10.1016/j.ijom.2016.04.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 02/19/2016] [Accepted: 04/22/2016] [Indexed: 10/21/2022]
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