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Ding Z, Xu D, Bai J, Li F, Adesogan A, Zhang P, Yuan X, Guo X. Characterization and identification of ferulic acid esterase‐producing
Lactobacillus
species isolated from
Elymus nutans
silage and their application in ensiled alfalfa. J Appl Microbiol 2019; 127:985-995. [DOI: 10.1111/jam.14374] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/01/2019] [Accepted: 07/02/2019] [Indexed: 11/26/2022]
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Zhong Z, Jin Q, Zhang J, Park YM, Shrestha D, Bai J, Merchant AT. Serum IgG Antibodies against Periodontal Microbes and Cancer Mortality. JDR Clin Trans Res 2019; 5:166-175. [PMID: 31277564 DOI: 10.1177/2380084419859484] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
INTRODUCTION Periodontitis is a chronic inflammatory condition initiated by microorganisms and is positively linked to systemic conditions such as cancer, cardiovascular disease, and diabetes mellitus. OBJECTIVES To prospectively investigate associations between empirically derived clusters of IgG antibodies against 19 selected periodontal microorganisms and cancer mortality in a representative sample of the US population. METHODS We evaluated 6,491 participants aged ≥40 y from the Third National Health and Nutrition Examination Survey (1988 to 1994), who had complete data on IgG antibody titers against 19 selected periodontal microorganisms and were free of cardiovascular disease and cancer. In a prior study, antibodies were categorized into 4 mutually exclusive groups via cluster analysis: red-green, orange-red, yellow-orange, and orange-blue. Cluster scores were estimated by summing z scores of the antibody titers making up each cluster. Participants were followed up to death until December 31, 2011. Cox proportional hazard models were applied to estimate hazard ratios (HRs) and 95% CIs for all-cancer mortality by tertiles of cluster scores. RESULTS During follow-up for a median of 15.9 y, there were 2,702 deaths (31.3%), including 631 cancer-related deaths (8.1%). After adjusting for multiple confounders, the orange-blue cluster was inversely associated with cancer mortality (tertile 2 vs. tertile 1: HR = 0.67, 95% CI = 0.54 to 0.84; tertile 3 vs tertile 1: HR = 0.62, 95% CI = 0.46 to 0.84). The association between the yellow-orange cluster and all-cancer mortality was also inverse but not significant, and the orange-red cluster and the red-green cluster were not associated with all-cancer mortality. CONCLUSIONS Antibodies against Eubacterium nodatum and Actinomyces naeslundii may be novel predictors of cancer mortality. If further studies establish a causal relationship between these antibodies and cancer mortality, they could be targets to prevent possible systemic effects of periodontal disease with potential interventions to raise their levels. KNOWLEDGE TRANSFER STATEMENT Periodontal antibodies against Eubacterium nodatum and Actinomyces naeslundii were inversely associated with cancer mortality among adults followed up for an average of 16 y. Periodontal antibodies may predict cancer mortality.
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Bai J, Jiu L, Poyiatzis N, Fletcher P, Gong Y, Wang T. Optical and polarization properties of nonpolar InGaN-based light-emitting diodes grown on micro-rod templates. Sci Rep 2019; 9:9770. [PMID: 31278328 PMCID: PMC6611877 DOI: 10.1038/s41598-019-46343-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/26/2019] [Indexed: 11/10/2022] Open
Abstract
We have demonstrated non-polar a-plane InGaN multiple-quantum-well (MQW) light-emitting diodes (LEDs) on sapphire, achieved by overgrowing on a micro-rod template with substantially improved crystal quality. Photoluminescence measurements show one main emission peak at 418 nm along with another weak peak at 448 nm. Wavelength mapping measurements carried out by using a high spatial-resolution confocal PL system indicate that the two emissions origin from different areas associated with the underlying micro-rod patterns. Electroluminescence measurements exhibit a negligible blue-shift of 1.6 nm in the peak wavelength of the main emission when the driving current increases from 10 to 100 mA, indicating that the quantum confined Stark effect is effectively suppressed in in the nonpolar LED. A polarization ratio of 0.49 is obtained for the low-energy emission (~448 nm), while the main emission (~418 nm) shows a polarization ratio of 0.34. Furthermore, the polarization ratios are independent of injection current, while the energy separation between m-polarized and c-polarized lights increases with the injection current for both emissions.
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Wang K, Wang Y, Xiao P, Yu QQ, Liu MH, Bai J, Shi SS, Tang J. [Clinical efficacy and safety of specific immunotherapy for allergic rhinitis with cervical lymph node injection]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2019; 33:432-436. [PMID: 31163552 DOI: 10.13201/j.issn.1001-1781.2019.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Indexed: 11/12/2022]
Abstract
Objective: To evaluate the clinical efficacy and safety of intralymphatic immunotherapy with cervical lymph node injection for allergic rhinitis. Method: A retrospective analysis of 81 patients with allergic rhinitis(AR) who had received specific immunotherapy with cervical lymph node injection in 2016 in the first people's Hospital of Foshan was conducted. The neck lymph node immunotherapy under the guidance of color Doppler ultrasound consisted of three sessions, and in each session 50 Tu(Arog) was delivered. The scores of nasal and ocular symptoms, drug score and adverse reactions during treatment were recorded before and after treatment, and the efficacy and safety were observed. Result: Before treatment, the nasal symptoms score of 81 AR cases of mite allergy was 7.00±1.65. After 1,2 and 3 sessions of cervical lymph node immune therapy and 1 year after completion of treatment, the nasal symptom scores were 4.37±1.88, 4.26±1.80, 4.22±1.80, and 4.09±2.10,respectively, which were significantly lower than that before treatment(P<0.01). The quality of life score was 53.68±9.28 before treatment, which decreased to 23.01±13.28 one year after treatment, and the difference was statistically significant(P<0.01). The drug score was 3.27±1.17 before treatment, which decreased to 1.00±1.05 1 years after treatment, and the difference was statistically significant(P<0.01). During treatment and 1-year follow-up, only 8 cases had mild local reactions, and no systemic adverse reactions occurred. Conclusion: Cervical lymph node injection specific immunotherapy can significantly relieve the symptoms of dust mite allergic rhinitis. The treatment is effective and safe, and greatly shortens the duration of immune treatment.
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Guo L, Bai J, Yao WK, Duan XM, Tian Z, Gao JN, Wang YP. [Composite mantle cell lymphoma and classical Hodgkin lymphoma: report of a case]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 2019; 48:409-410. [PMID: 31104687 DOI: 10.3760/cma.j.issn.0529-5807.2019.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Du HQ, Jia AH, Dong XQ, Li HM, Sun BQ, Guo JF, Bai J, Zhang GZ. [Bone sclerosis as the initial manifestation of gastric cancer without significant gastrointestinal symptoms: a case report]. ZHONGHUA NEI KE ZA ZHI 2019; 58:385-387. [PMID: 31060149 DOI: 10.3760/cma.j.issn.0578-1426.2019.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Chen K, Bai J, Zhao H, Yang F, Zhang C, Wang Y, Chang L, Guan Y, Yi X, Feng L, Zhang K, Cheng S, Wang J. Comprehensive profiling of genomic and TCR repertoire in localized stage lung adenocarcinomas from a prospective cohort study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz064.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Bai J, Hu Y, Bruner DW. Composition of gut microbiota and its association with body mass index and lifestyle factors in a cohort of 7-18 years old children from the American Gut Project. Pediatr Obes 2019; 14:e12480. [PMID: 30417607 DOI: 10.1111/ijpo.12480] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 09/14/2018] [Accepted: 09/17/2018] [Indexed: 01/30/2023]
Abstract
BACKGROUND The association between the gut microbiota and obesity in young children and adolescents is not fully studied. OBJECTIVES This study investigated the associations between the gut microbiota and body mass index (BMI) level (underweight, normal, overweight, obese) and lifestyles (diet type and exercise frequency), controlling for demographic and clinical factors among children aged 7-18 years. METHODS A cohort study was conducted on 267 children aged 7-18 years from the American Gut Project. 16S rRNA sequences were analysed by QIIME 2™. Composition of gut microbiota and its associations with BMI level, weight change and lifestyles were analysed using linear decomposition model. RESULTS Significant factors affecting the gut microbiota were BMI level (p = 0.009), exercise frequency (p = 0.003) and diet type (p = 0.01), controlling for age, sex and use of antibiotics and probiotics. More bacterial operational taxonomic units (OTUs) were associated with BMI level (120 OTUs) and diet type (122 OTUs) than exercise frequency (67 OTUs). Actinobacteria phylum had significantly depleted OTUs for BMI level, diet type and exercise frequency; Proteobacteria phylum had significantly enriched OTUs for higher BMI level and Firmicutes phylum had significantly enriched OTUs for more frequent exercise. CONCLUSIONS Significant associations were found between the gut microbiota composition and BMI level and lifestyles controlling for demographic and clinical factors in children aged 7-18 years.
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Chen Q, Chen CC, Bai J. Pathological Changes of Petechial Hemorrhage after High Temperature Treatment. FA YI XUE ZA ZHI 2019; 34:631-634. [PMID: 30896101 DOI: 10.12116/j.issn.1004-5619.2018.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To study the main features of mechanical asphyxia--the pathological characteristics of petechial hemorrhage after high temperature effect (roasted, boiled) and its changing rules. METHODS Rabbit model of mechanical asphyxia death with choking neck and death from anteposition hanging was established. The experimental rabbits were randomly divided into roasted group and boiled group (n=4, in each group). The laryngeal ventricles and cardiopulmonary tissues in the roasted group were roasted for 3, 6 and 10 min, and the positions of petechial hemorrhage were observed and photographed. The same organs and tissues in the boiled group were heated in boiling water (100 ℃), and were observed and photographed at 30 and 60 s. Then histopathological examination was performed on all the laryngeal ventricles and cardiopulmonary tissues. RESULTS The petechial hemorrhage originating from laryngeal ventricle, trachea and lung did not disappear after high temperature treatment in the eight rabbits. The deepened color was visible to naked eyes and distinct from the surrounding normal tissues, with bleeding under the microscope. CONCLUSIONS Petechial hemorrhage caused by mechanical asphyxia would not disappear under high temperature, which might be related to the manner of death, the intensity and time of action, and the individual differences.
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Yan J, Yu XJ, Pei XY, Zhang JF, Wu XM, Li X, An H, Bai J. [Contamination and pathogenicity analysis of listeria monocytogenes in restaurant in Heilongjiang Province]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2019; 53:298-302. [PMID: 30841671 DOI: 10.3760/cma.j.issn.0253-9624.2019.03.012] [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 study the contamination, serotype, pulsed field gel electrophoresis (PFGE) and drug resistance of listeria monocytogenes (L.monocytogenes) in the process of restaurant kitchens in Heilongjiang Province. Methods: Seventeen typical restaurants were selected from three cities in Heilongjiang Province in 2016, and 590 kitchen samples were collected and tested according to the national standard method. The serotype, pulsed field gel electrophoresis (PFGE) and drug resistance of isolated strains were analyzed. Results: L. monocytogenes was found in 104 of 590 of the samples analysed (17.63%). The isolates belong to six serotypes (1/2 a, 1/2 b, 1/2c, 3a, 3 b, 4 b) and self-condensing bacteria, and 57.38% (70 strains) of the strains belong to serotype 1/2b. Two highly pathogenic serotype 4b was detected for human listeria disease. The results of PFGE analysis show that the bacteria have cross-contamination in the environment, tools, equipment, food and personnel. The drug resistance results showed that 2 strains were resistant to tetracycline, 1 strain was resistant to erythromycin, 13 strains were intermediate to tetracycline, and 2 strains were resistant to tetracycline and erythromycin. Conclusion: There is a certain degree of L. monocytogenes cross-contamination in the catering kitchen in Heilongjiang Province. And an important serotype 4b that can cause human Listeria disease was detected.
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Gong Y, Jiu L, Bruckbauer J, Bai J, Martin RW, Wang T. Monolithic multiple colour emission from InGaN grown on patterned non-polar GaN. Sci Rep 2019; 9:986. [PMID: 30700776 PMCID: PMC6353934 DOI: 10.1038/s41598-018-37575-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 12/10/2018] [Indexed: 11/09/2022] Open
Abstract
A novel overgrowth approach has been developed in order to create a multiple-facet structure consisting of only non-polar and semi-polar GaN facets without involving any c-plane facets, allowing the major drawbacks of utilising c-plane GaN for the growth of III-nitride optoelectronics to be eliminated. Such a multiple-facet structure can be achieved by means of overgrowth on non-polar GaN micro-rod arrays on r-plane sapphire. InGaN multiple quantum wells (MQWs) are then grown on the multiple-facet templates. Due to the different efficiencies of indium incorporation on non-polar and semi-polar GaN facets, multiple-colour InGaN/GaN MQWs have been obtained. Photoluminescence (PL) measurements have demonstrated that the multiple-colour emissions with a tunable intensity ratio of different wavelength emissions can be achieved simply through controlling the overgrowth conditions. Detailed cathodoluminescence measurements and excitation-power dependent PL measurements have been performed, further validating the approach of employing the multiple facet templates for the growth of multiple colour InGaN/GaN MQWs. It is worth highlighting that the approach potentially paves the way for the growth of monolithic phosphor-free white emitters in the future.
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Bai J, Wang R, Yan L, Feng J. Co-Supplementation of Dietary Seaweed Powder and Antibacterial Peptides Improves Broiler Growth Performance and Immune Function. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2019. [DOI: 10.1590/1806-9061-2018-0826] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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113
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Diaconu SC, McNichols CHL, Ngaage LM, Liang Y, Ikheloa E, Bai J, Grant MP, Nam AJ, Rasko YM. Closed-incision negative-pressure therapy decreases complications in ventral hernia repair with concurrent panniculectomy. Hernia 2018; 24:49-55. [PMID: 30560390 DOI: 10.1007/s10029-018-1865-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 11/25/2018] [Indexed: 01/25/2023]
Abstract
PURPOSE Ventral hernia repair with concurrent panniculectomy (VHR-PAN) is associated with high wound complication rates despite reported increased patient satisfaction. Some surgeons believe negative-pressure therapy after primary closure of the surgical incision (ciNPT) may lower wound complications in high-risk abdominal wounds. This study aims to evaluate if ciNPT improves outcomes in patients undergoing VHR-PAN. METHODS An 8-year retrospective cohort study was performed on patients who underwent VHR-PAN. Patients were divided into two groups: those who received closed-incision negative-pressure therapy ("ciNPT") and those who received standard sterile dressings ("SSD"). The primary outcome of interest was the rate of postoperative complications between these groups. Complications were subdivided into surgical site occurrences (which included surgical site occurrences that required an intervention), return to the operating room, and hernia recurrence. RESULTS A total of 104 patients were analyzed: 62 in the ciNPT group and 42 in the SSD group. Median follow-up duration was similar between both groups (182 days vs 195 days, p = 0.624). Patients in the ciNPT group had fewer total complications (57% vs. 83%, p = 0.004) and fewer SSO (47% vs. 69%, p = 0.025). However, no differences were noted when comparing individual complications (SSI, wound dehiscence, skin necrosis, chronic wound, seroma, and hematoma). There was no difference in return to the operating room (27% vs. 26%, p = 0.890) or hernia recurrence (21% vs 19%, p = 0.811). Multivariate analysis showed that ciNPT decreased the risk of SSOPI nearly fourfold (odds ratio 0.28, 95% CI = 0.09-0.87, p = 0.027). CONCLUSIONS This study showed that closed-incision negative-pressure therapy in ventral hernia repair with concurrent panniculectomy may decrease the rate of wound complications in this high-risk population.
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Chen KJ, Yu T, Pan J, Liu LN, Lang M, Bai J. [Effect of different medication time prior to corneal refractive surgery on tear film stability]. [ZHONGHUA YAN KE ZA ZHI] CHINESE JOURNAL OF OPHTHALMOLOGY 2018; 54:744-747. [PMID: 30347561 DOI: 10.3760/cma.j.issn.0412-4081.2018.10.005] [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 effect of different medication time prior to corneal refractive surgery on tear film stability. Methods: Prospective cohort study. A total of 60 patients (60 eyes), including 38 males (63.3%) and 22 females (37.7%) with an average age of (24.2±5.1) years (form 18 to 37 years), who had planned for corneal refractive surgery with normal ocular surface disease index score were included in this study. The patients were divided into 1d group (medication of 1 day, 30 eyes) and 3d group (medication of 3 days, 30 eyes) randomly. The first tear break up time (FBUT), the average tear break up time (AVBUT) and the dry eye grade score were recorded on the examination day and the operation day with Keratograph 5M. The difference of FBUT and AVBUI between the two groups was compared with the independent sample t test. The difference of FBUT and AVBUT between the examination day and the operation day was compared with the paired t test. The difference of the dry eye classification between the two groups was compared using chi-square test. Results: The FBUT and AVBUT of 1d group and 3d group were (10.89±5.19)s and (10.88±6.82)s, (16.24±3.62)s and (16.21±4.74)s respectively in preoperative examination, and (10.65±6.03)s and (8.14±5.75)s, (15.14±5.30)s and (12.86±5.92)s respectively in operation day. There was no significant difference in FBUT and AVBUT between the two groups (t=0.01, 1,47, 0.02, 1.44; P>0.05). However, in the 3d group, the AVBUT of operation day decreased as compared with that of the examination day, and the difference was statistically significant (t=2.31, P<0.05). There was no significant difference in the distribution of dry eye classification between the two groups (χ(2)=0.07, 3.36; P>0.05). Conclusion: Both of medication of 1 day and medication of 3 days prior to corneal refractive surgery can provide a similar tear film stability, however more attention should be paid to the medication for patients with asymptomatic but abnormal BUT. (Chin J Ophthalmol, 2018, 54: 744-747).
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Chen K, Zhao H, Bai J, Yang F, Chang L, Guan Y, Yi X, Feng L, Cheng S, Wang J. P2.03-26 A Prospective Cohort Study of TMB and Determinants of ctDNA Detection by Comprehensive Genomic Profiling in Stage I Lung Adenocarcinomas. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Siotos C, Ibrahim Z, Bai J, Payne R, Seal S, Lifchez S, Hyder A. Hand injuries in low- and middle-income countries: systematic review of existing literature and call for greater attention. Public Health 2018; 162:135-146. [DOI: 10.1016/j.puhe.2018.05.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/21/2018] [Accepted: 05/15/2018] [Indexed: 11/16/2022]
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Wang X, Bai J, Walther T. Self-consistent absorption correction for quantifying very noisy X-ray maps: group III nitride nanowires as an example. J Microsc 2018; 272:111-122. [PMID: 30129975 DOI: 10.1111/jmi.12751] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/17/2018] [Accepted: 08/01/2018] [Indexed: 11/28/2022]
Abstract
Energy-dispersive X-ray mapping in a scanning transmission electron microscope is a method to visualize the spatial distribution of chemical elements in a sample. Quantification of the signal intensities depends on proper background elimination and correction of the self-absorption and fluorescence of X-ray lines in the sample. The latter become particularly relevant for slightly thicker and rough samples, small take-off angles and low-energetic X-ray lines, for which we have recently introduced a self-consistent absorption correction based on effective k*-factors selected automatically from curves simulated as function of a K/L line intensity ratio of one of the heavier elements in the sample for ranges of different compositions. This has been shown to work well for thick and for rough samples. Correcting the background intensity to sub-pixel accuracy is necessary for reliable quantification of very noisy maps. In this study, we show how this self-consistent absorption correction method can be applied to InGaN and AlGaN layers in GaN nanowires, the net maps of which can be so noisy the layers can hardly be seen by the eye (a few counts per pixel) and the background is below a single count in each spectrum channel. The result indicates that background estimation for the Ga L-line intensity using fractional counts from an interpolation of maps from neighbouring X-ray lines of elements that are not actually present in the specimen is critical for quantification. The nanowires studied were between 66 and 375 nm thick. LAY DESCRIPTION Energy-dispersive X-ray mapping in a scanning transmission electron microscope is a method to visualize the spatial distribution of chemical elements in a sample. Quantification of the signal intensities depends on proper background elimination and correction of the self-absorption of X-ray lines in the sample. Here we show that our previously developed method of self-consistent effective absorption factors works well even with extremely noise elemental maps of a few net counts only where the human eye can hardly discern any pattern and the background signal is typically less than a single count in each spectrum channel. Correcting the background intensity to sub-pixel accuracy is then necessary for reliable quantification.
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Han Y, Li X, Ma C, Ji X, Li T, Zheng X, Zhang J, Yan J, Zhang D, Bai J. Seed targeting with tiny anti-miR-1297 inhibits EMT in melanoma cells. J Drug Target 2018; 27:75-81. [PMID: 29873263 DOI: 10.1080/1061186x.2018.1481412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
MicroRNAs (miRNAs) are small, noncoding RNAs that have tissue- and cell-specific expression. They have the ability to regulate the malignant proliferation and transformation of tumour cells. The research focussed on the expression and role of miR-1297 in melanoma. We firstly found that miR-1297 is up-regulated in melanoma tissues and cell lines. Functionally, phosphatase and tension homology deleted on chromsome ten gene (PTEN) was used as a potential target for miR-1297 and detected using Western blotting and immunohistochemistry (IHC). We then used chemical synthesis of anti-miR1297 to explore the influence on melanoma cells and examined the effects on A375 cell proliferation using MTT and western blotting methods. The results showed that anti-miR-1297 transfected A375 cells could inhibit the growth. Furthermore, transfection with anti-miR-1297 reduced PTEN protein expression and partially restrained A375 cells proliferation, migration and reversed Epithelial-Mesenchymal Transition (EMT) progression. In conclusion, we tentatively put forward that miR-1297 might be the key oncomiR in melanoma, and seed-targeted anti-miR-1297 might serve as a new tactic for miR-1297-based therapies.
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Zhang S, Ding S, Cai M, Bai J, Zhang M, Huang Y, Zheng J. Impact of upper respiratory tract infections on perioperative outcomes of children undergoing therapeutic cardiac catheterisation. Acta Anaesthesiol Scand 2018; 62:915-923. [PMID: 29569250 DOI: 10.1111/aas.13113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/06/2018] [Accepted: 02/18/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND Recent upper respiratory tract infection (URI) is associated with increased incidence of perioperative complications in children undergoing open heart surgery. As a result, surgery is often postponed. However, the effect of recent URI on the incidence of perioperative complications in children undergoing therapeutic cardiac catheterisation is unknown. We investigated the perioperative outcomes of congenital heart disease (CHD) children with recent URI who underwent elective therapeutic catheterisation. METHODS We prospectively included children treated for CHD. Before surgery, parents or legal guardians were interviewed to complete a questionnaire on the child's demographics, history of asthma and passive smoking, and URI symptoms. Recorded perioperative respiratory adverse events (PRAEs) included laryngospasm, bronchospasm, breath holding, oxygen desaturation, and severe cough. Information on postoperative dysphoria, fever, copious sputum, and vomiting was obtained by telephone 24 h after surgery. RESULTS Of 363 included children, 169 had recently (within 2 weeks) had a URI. The URI did not affect the incidence of laryngospasm, bronchospasm, breath holding, fever, or vomiting. The incidence of desaturation, severe cough, dysphoria, and copious sputum were significantly increased. Independent risk factors for PRAEs in children with a recent URI included age, passive smoking, and presence of rhinorrhoea or moist cough. The lengths of stay in the hospital and intensive care unit were not significantly different between groups. CONCLUSION Although recent URI increased the incidence of PRAEs in children undergoing therapeutic cardiac catheterisation, most CHD patients with recent URI can undergo elective therapeutic cardiac catheterisation without serious adverse events or prolonged hospitalisation.
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Luo D, Ma X, Bai J, Zhou Z, Wang F, Wang A, Wang J. Association between COMT SNP variation and timidity in Golden and Labrador Retrievers. Anim Genet 2018; 49:340-344. [PMID: 29932467 DOI: 10.1111/age.12662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/26/2018] [Indexed: 01/10/2023]
Abstract
Timidity in dogs is a trait with high heritability. However, the relevant genetic factors and markers associated with this condition are largely unknown. The function of the catechol-O-methyl transferase (COMT) gene has been found to be associated with human fearful or anxious emotions, and the COMT:p.Val158Met polymorphism locus is significantly related to anxious behavior. In the present study, the correlation between timidity and four single nucleotide polymorphism (SNP) variations (C.-1666C>G c.39A>G, c.216G>A, c.482G>A) of the COMT gene was investigated in dogs. The evaluation was based on the dog courage assessment assay and a genotype and haplotype analysis in Labrador Retrievers (LR) and Golden Retrievers (GR). The principal components analysis factor structure of the courage phenotype was invariant between LR and GR. Sex, breed and age had no statistically significant effect on the timidity of the dogs. All SNP loci detected were in Hardy-Weinberg equilibrium. The c.39A>G locus was removed in the subsequent association analysis due to the significant difference between LR and GR in genotype distributions. Intriguingly, the genotypes and haplotypes of the COMT gene were significantly and highly correlated with the timidity of LR and GR. The A alleles of the COMT:c.216G>A and c.482G>A loci appeared to play a dominant role in the timid behavior of the dogs. This result supports and broadens the warrior/worrier hypothesis and will have important implications for the understanding of the evolution of temperament in dogs. Additionally, the results provide predictive genetic markers for temperament in dogs.
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Bai J, Yin Q, Zhou H, Wang H. 1082 Identification of a natural inhibitor of one-carbon metabolism in keratinocytes. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Chen Y, Bai J, Wang R. Insertion methods comparison for The Streamlined Liner of the Pharynx Airway in children by novice. Acta Anaesthesiol Scand 2018; 62:319-327. [PMID: 29063598 DOI: 10.1111/aas.13018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 09/19/2017] [Accepted: 10/01/2017] [Indexed: 02/05/2023]
Abstract
BACKGROUND The Streamlined Liner of the Pharynx Airway (SLIPA™) is a popular supraglottic airway device used for pediatric anesthesia. However, based on the anatomical features of pediatric patients, novice residents are expected to have difficulties inserting the device. The objective of this work was to improve the SLIPA insertion by modifying the device. METHODS A total of 134 children were randomized into two groups. Anesthesia was standardized among all patients except for the way in which the SLIPA was inserted. One group underwent the conventional method of insertion (Group C), while the modified group received a SLIPA that was bent120° at the 'bridge' point with an intubating stylet (Group M). The primary outcome was insertion success rate, and the secondary outcomes included insertion time, incidence of complications and hemodynamic responses to insertion. RESULTS The insertion success rate was significantly higher in Group M than Group C (94% vs. 73%, Χ2 = 10.659, P = 0.001). The insertion time for Group M [29.31 (25.91-35.60) seconds] was shorter than for Group C [34.72 (26.81-42.58) seconds] (Z = -2.381, P = 0.017). Trends in heart rate (F = 0.260, P = 0.794), mean blood pressure (F = 0.167, P = 0.683) did not significantly differ between the two groups over time. In terms of complications, we found no significant differences between groups (P > 0.05). CONCLUSION The 120° bend improved SLIPA insertion when performed by novice, as reflected by higher insertion success rates and shorter insertion times, with no statistical differences in hemodynamic response to insertion or the incidence rates of complications between the two groups.
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Abstract
Abstract:During past decades, various cardiac assist devices were invented. These cardiac assist devices can be classified into two categories: parallel connected or sequentially connected to the natural heart. In the past, more attention was paid to the assistance of the device provided to the failing heart and most research was conducted towards that goal. While less attention was paid to the “dose” of the assistance for rehabilitation of the natural heart. In our study, the hemodynamic effects of parallel as well as sequential cardiac assist devices are investigated in terms of the working load to the natural heart, and the oxygen supply and consumption of the natural heart. Preliminary results show that the sequential assistance could reduce the working load of the natural heart as well as increase the coronary flow. The results also indicate that the control scheme of the cardiac assist device has effect on the oxygen supply and consumption of the natural heart. There is optimal “dose” of assistance for the rehabilitation of the natural heart.
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Fan H, Hu Y, Li X, Wu H, Lv R, Bai J, Wang J, Qin L. Ectopic Cartilage Formation Induced by Mesenchymal Stem Cells on Porous Gelatin-Chondroitin-Hyaluronate Scaffold Containing Microspheres Loaded with TGF-β1. Int J Artif Organs 2018; 29:602-11. [PMID: 16841290 DOI: 10.1177/039139880602900610] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The study aimed to produce a novel porous gelatin-chondroitin-hyaluronate scaffold in combination with a controlled release of TGF-β1 and to evaluate its potentials in ectopic cartilage formation. The gelatin-chondroitin-hyaluronate scaffold was developed to mimic the natural extra cellular matrix of cartilage. Gelatin microspheres loaded with TGF-β1 (MS-TGFβ1) showed a fast cytokine release at initial phase (37.4%) and the ultimate accumulated release was 83.1% by day 18. Then MS-TGFβ1 were incorporated into scaffold. The MSCs seeded on scaffold with or without MS-TGFβ1 were incubated in vitro or implanted subcutaneously in nude mice. In vitro study showed that, compared to the scaffold, the scaffold/MS-TGFβ1 significantly augmented the proliferation of MSCs and GAG synthesis. Three weeks postoperatively histology observation showed that in MSCs/scaffold/MS-TGFβ1 implantation group, cells of newly formed ectopic cartilage were located within typical lacunae and demonstrated morphological characteristics of chondrocytes. Six weeks later the ectopic cartilage grew more and islands of cartilage were observed. The matrix was extensively metachromatic by safranin-O/Fast green staining. Immunohistochemical staining also indicated ectopic cartilage was intensely stained for type II collagen. Instead, in the MSCs/scaffold implantation group, no cartilage-like tissue formed and matrix showed negative or weak positive staining. The percentage of positive staining area was significantly larger in MSCs/scaffold/MS-TGFβ1 group (p<0.05) at each time point. The results indicated that the novel gelatin-chondroitin-hyaluronate scaffold with MS-TGFβ1 could induce the chondral differentiation of MSCs to form cartilage and might serve as a new way to repair cartilage defects.
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Chen Q, Bai J, Zhang WF. [Screening of Differential Expression Proteins in Rat Brain Tissues after DAI by iTRAQ-LC-MS/MS]. FA YI XUE ZA ZHI 2017; 33:348-352. [PMID: 29219262 DOI: 10.3969/j.issn.1004-5619.2017.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To screen for the differential expression proteins in brain tissues of SD rat after diffuse axonal injury (DAI) by isobaric tag for relative and absolute quantification-liquid chromatograph-mass spectrometer/mass spectrometer (iTRAQ-LC-MS/MS), and to explore potential biomarkers available for the diagnosis of DAI. METHODS Animal models of DAI were established with the Marmarou method as reference, and the subjects were divided into blank control group (n=4), sham strike group (n=4) and fatal strike group (n=4), respectively. The proteins in rat brain tissues were detected by iTRAQ-LC-MS/MS, and bioinformatics analysis and verification were performed on the results and screened for the differential expression proteins. RESULTS A total of 2 016 proteins were identified and quantified. The bioinformatics analysis revealed that the proteins had wide distribution and function, and participated in different biological processes. There were 16 proteins showed differential expression in fatal strike group, including one up-regulated expression protein and 15 down-regulated expression proteins. The results of iTRAQ-LC-MS/MS were confirmed by Western blotting method. CONCLUSIONS Multiple differential expression proteins in rat brain tissues after DAI can be screened by iTRAQ-LC-MS/MS. This not only indicates a research direction for exploring the pathogenesis of DAI, but also provides potential biomarkers available for the diagnosis of DAI.
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