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1.
Zhonghua Yi Xue Za Zhi ; 104(17): 1486-1492, 2024 May 07.
Artículo en Zh | MEDLINE | ID: mdl-38706055

RESUMEN

Objective: To investigate the clinical effect of over-the-top (OTT) reconstruction of the anterior cruciate ligament (ACL) combined with the modified Lemaire technique in one-stage ACL revision. Methods: It's a retrospective study. The clinical data of 37 patients who underwent one-stage revision of ACL using OTT combined with modified Lemaire technique from April 2020 to May 2023 in the Department of Sports Medicine of Xinhua Hospital Affiliated to Dalian University were retrospectively analyzed. There were 28 males and 9 females with a mean age of (32.7±5.7) years. The postoperative knee function and surgical revision effect were evaluated by subjective and objective evaluation indexes of the knee joint before and 3 months and 24 months after surgery. The subjective evaluation indexes included the International Knee Documentation Committee (IKDC) score, Lysholm score, and Tegner score; and the objective evaluation indexes included the anterior-posterior static displacement distance of the tibia, tibia-femur relative rotation angle, the Lachman test, the axial shift test, and the ratio of the loss of muscle strength of the lower limb. Results: At the final follow-up, all patients returned to pre-injury motor level, with significant improvements in IKDC scores (45.3±6.8 preoperatively, 67.5±4.7 and 93.2±2.3 at 3 months and 2 years after the operation, respectively), Lysholm scores (57.2±2.6 preoperatively, 72.6±2.9 and 89.7±3.7 at 3 months and 2 years after the operation, respectively), and Tegner scores (3.1±0.7 preoperatively, 4.9±0.6 and 5.8±1.3 at 3 months and 2 years after the operation, respectively) (all P<0.001). The anterior-posterior static displacement distance of the tibia reduced significantly [from (5.2±0.5) mm before the operation to (1.4±0.5) mm at 2 years postoperatively) (P<0.001)]; and the relative rotation angle of the tibia-femur restored to the normal physiological range, it was reduced from 6.2°±1.2° before the operation to 1.7°±0.3° 2 years after (P<0.001). The Lachman test and axial shift test at 2 years postoperatively were all negative. The muscle strength loss ratio of the affected lower limb was significantly better than that before the operation (P<0.001). Conclusion: The use of OTT reconstruction combined with modified Lemaire technique for revision of ACL in patients with ACL reconstruction failure can circumvent the tunnel problem for one-stage revision and better restore the stability and function of the knee joint, with ideal clinical results.


Asunto(s)
Reconstrucción del Ligamento Cruzado Anterior , Humanos , Reconstrucción del Ligamento Cruzado Anterior/métodos , Masculino , Femenino , Adulto , Estudios Retrospectivos , Resultado del Tratamiento , Lesiones del Ligamento Cruzado Anterior/cirugía , Ligamento Cruzado Anterior/cirugía , Articulación de la Rodilla/cirugía
2.
Zhonghua Yu Fang Yi Xue Za Zhi ; 58(9): 1384-1387, 2024 Sep 06.
Artículo en Zh | MEDLINE | ID: mdl-39290021

RESUMEN

To study the clinical correlation between fasting plasma glucose, lipid metabolism, prostate-specific antigen and prostate volume in patients with benign prostatic hyperplasia, and to explore the combined effect as diagnostic indicators. A total of 108 patients with benign prostatic hyperplasia treated in Beijing University of Chinese Medicine Third Affiliated Hospital from June 2021 to March 2023 were retrospectively analyzed as the hyperplasia group, and 98 healthy physical examination personnel were selected as the control group during the same period. Compare the differences in levels of fasting plasma glucose (FPG), total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), small and dense low-density lipoprotein cholesterol (sdLDL-C), homocysteine, lipoprotein a (LPa), prostate specific antigen (PSA), and free prostate specific antigen (fPSA) between two groups of patients. Using Pearson analysis method to analyze the correlation between the above indicators and the size of prostate volume in patients with benign prostatic hyperplasia; using multiple linear regression to analyze the influencing factors of prostate volume enlargement; draw receiver operating characteristic (ROC) curves and analyze the application value of individual and combined detection of HDL, FPG, PSA, and fPSA. The results showed that there were significant differences in HDL, FPG, PSA, and fPSA levels between the control group and the proliferative group(P<0.05). The size of prostate volume is negatively correlated with HDL(r=-0.183, P<0.05) and positively correlated with FPG (r=0.202, P<0.05), PSA(r=0.412, P<0.05), and fPSA(r=0.425, P<0.05). The results of multiple linear regression analysis showed that HDL(P=0.000), FPG(P=0.048), PSA(P=0.044), and fPSA (P=0.012) were risk factors for increased volume of benign prostatic hyperplasia; ROC curve analysis shows that the AUC of HDL, FPG, PSA, and fPSA combined detection is 0.823, which is better than individual detection. In conclusion,HDL, FPG, PSA, fPSA has close correlation with hyperplasia of prostate, the joint detection may has better prediction for benign prostatic hyperplasia.


Asunto(s)
Glucolípidos , Antígeno Prostático Específico , Próstata , Hiperplasia Prostática , Hiperplasia Prostática/sangre , Hiperplasia Prostática/patología , Humanos , Masculino , Estudios Retrospectivos , Antígeno Prostático Específico/sangre , Próstata/patología , Glucemia , Triglicéridos/sangre , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Estudios de Casos y Controles
3.
Zhonghua Xin Xue Guan Bing Za Zhi ; 51(6): 619-625, 2023 Jun 24.
Artículo en Zh | MEDLINE | ID: mdl-37312480

RESUMEN

Objective: To explore the value of cardiac magnetic resonance imaging (CMR) in the risk stratification of hypertrophic cardiomyopathy (HCM). Methods: HCM patients who underwent CMR examination in Fuwai Hospital between March 2012 and May 2013 were retrospectively enrolled. Baseline clinical and CMR data were collected and patient follow-up was performed using telephone contact and medical record. The primary composite endpoint was sudden cardiac death (SCD) or and equivalent event. The secondary composite endpoint was all-cause death and heart transplant. Patients were divided into SCD and non-SCD groups. Cox regression was used to explore risk factors of adverse events. Receiver operating characteristic (ROC) curve analysis was used to assess the performance and the optimal cut-off of late gadolinium enhancement percentage (LGE%) for the prediction of endpoints. Kaplan-Meier and log-rank tests were used to compare survival differences between groups. Results: A total of 442 patients were enrolled. Mean age was (48.5±12.4) years and 143(32.4%) were female. At (7.6±2.5) years of follow-up, 30 (6.8%) patients met the primary endpoint including 23 SCD and 7 SCD equivalent events, and 36 (8.1%) patients met the secondary endpoint including 33 all-cause death and 3 heart transplant. In multivariate Cox regression, syncope(HR=4.531, 95%CI 2.033-10.099, P<0.001), LGE% (HR=1.075, 95%CI 1.032-1.120, P=0.001) and left ventricular ejection fraction (LVEF) (HR=0.956, 95%CI 0.923-0.991, P=0.013) were independent risk factors for primary endpoint; Age (HR=1.032, 95%CI 1.001-1.064, P=0.046), atrial fibrillation (HR=2.977, 95%CI 1.446-6.131, P=0.003),LGE% (HR=1.075, 95%CI 1.035-1.116, P<0.001) and LVEF (HR=0.968, 95%CI 0.937-1.000, P=0.047) were independent risk factors for secondary endpoint. ROC curve showed the optimal LGE% cut-offs were 5.1% and 5.8% for the prediction of primary and secondary endpoint, respectively. Patients were further divided into LGE%=0, 0

Asunto(s)
Cardiomiopatía Hipertrófica , Medios de Contraste , Humanos , Femenino , Adulto , Persona de Mediana Edad , Masculino , Estudios Retrospectivos , Volumen Sistólico , Gadolinio , Función Ventricular Izquierda , Imagen por Resonancia Magnética , Cardiomiopatía Hipertrófica/diagnóstico por imagen , Muerte Súbita Cardíaca , Medición de Riesgo
4.
Dis Esophagus ; 33(4)2020 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-32008045

RESUMEN

Magnetically controlled capsule endoscopy (MCE) system has been used to screen gastric lesions. However, the visualization performance of MCE in the esophagus has not been investigated systematically. String method improved the ability of capsule endoscopy (CE) for esophageal observing; however, the string attachment is complicated and cannot be detached with the CE inside the esophagus. We used a modified string, called detachable string attached to MCE. The aim of the study was to compare the observation performance of MCE with and without the detachable string. A total of 238 participants with upper gastrointestinal symptoms and a healthy check who refused esophagogastroduodenoscopy examination were retrospectively divided into the detachable string MCE group and the MCE alone group from June 2016 to May 2018. A suction cap with a thin, hollow string was attached to the MCE system in the detachable string group. Circumferential visualization of the esophagus including the upper, middle, and lower esophagus and Z-line, and esophageal focal lesion, as well as the recording time, safety and tolerability of the procedure, were assessed. The circumferential visualization of the upper, middle, and lower esophagus and Z-line was more efficient in the detachable string MCE group than in the MCE alone group (P < 0.001). In all, 31 esophageal lesions were detected in the detachable string MCE group, which was more than that in the MCE alone group (10, P < 0.001). The mean recording time was 305 seconds in the string MCE group, which was longer than that in the MCE alone group (48.5 seconds, P < 0.001). In seven participants (6.1%) in the detachable string MCE group, the capsule could not be separated from the string. Detachable string MCE showed better performance in terms of observation of the esophagus. Detachable string MCE can be used to screen for esophageal diseases as an alternative method in the future.


Asunto(s)
Endoscopía Capsular/métodos , Enfermedades del Esófago/diagnóstico por imagen , Esofagoscopía/métodos , Esófago/diagnóstico por imagen , Magnetismo/métodos , Adulto , Anciano , Endoscopía Capsular/instrumentación , Esofagoscopía/instrumentación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
5.
Zhonghua Yu Fang Yi Xue Za Zhi ; 54(4): 451-456, 2020 Apr 06.
Artículo en Zh | MEDLINE | ID: mdl-32268656

RESUMEN

In general, the application conditions of linear regression models could be met after the natural logarithmic transformation of data. From the practical perspective, this paper introduced the linear regression models with natural logarithmic transformation of independent variable, dependent variable, and both independent and dependent variables in detail. The paper illustrated why the equation and coefficients could not be directly explained after the natural logarithmic transformation of data. The percentage changes of X and/or Y were applied to elaborate the principle and method for the explanation of the equation and coefficients. Three examples were used to fit simple linear models with natural logarithmic transformation of independent, dependent, and both independent and dependent variables and the results of theses models were explained in detail.


Asunto(s)
Modelos Lineales , Análisis Multivariante
6.
Ann Oncol ; 30(2): 266-273, 2019 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-30445581

RESUMEN

BACKGROUND: Tumor IL17-producing (IL17A+) cells infiltration has different prognostic values among various cancers. The objective of this study was to assess the effect of IL17A+ cells in gastric cancer. PATIENTS AND METHODS: The study included two patient cohorts, the Cancer Genome Atlas cohort (TCGA, n = 351) and the Zhongshan Hospital cohort (ZSHC, n = 458). The TCGA and ZSHC were used for mRNA-related and cells infiltration-related analyses, respectively. The roles of IL17A mRNA and IL17A+ cells in overall survival (OS), response to adjuvant chemotherapy (ACT), and immune contexture were evaluated. Another independent cohort was included to identify the correlation between mRNA of IL17A and IL17A+ cells infiltration (the preliminary Zhongshan Hospital cohort, PZSHC, n = 21). RESULTS: The infiltration of IL17A+ cells was positively correlated with the expression of IL17A mRNA (Spearman's ρ = 0.811; P < 0.001). High IL17A mRNA expression and intratumoral IL17A+ cells were correlated with improved OS and remained to be significant after adjusted for confounders. Patients with TNM II/III disease whose tumor present higher intratumoral IL17A+ cells or lower peritumoral IL17A+ cells can benefit more from ACT. Elevated IL17A mRNA expression and increased intratumoral IL17A+ cells infiltration was associated with more antitumor mast cells and nature killer cells infiltration and less pro-tumor M2 macrophages infiltration. High IL17A mRNA expression represented a Th17 cells signature and immune response process and was correlated with increased cytotoxic GZMA, GZMB, IFNG, PRF1, and TNFSF11 expression. CONCLUSIONS: IL17A mRNA expression and intratumoral IL17A+ cells infiltration were correlated with antitumor immune contexture. IL17A+ cells infiltration could be used as an independent prognostic biomarker for OS and predictive biomarker for superior response to ACT, and further prospective validation needs to be conducted.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Quimioterapia Adyuvante/mortalidad , Interleucina-17/genética , Interleucina-17/inmunología , Linfocitos Infiltrantes de Tumor/inmunología , Neoplasias Gástricas/inmunología , Estudios de Seguimiento , Humanos , Interleucina-17/metabolismo , Pronóstico , Estudios Retrospectivos , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/genética , Neoplasias Gástricas/patología , Tasa de Supervivencia
7.
Clin Exp Immunol ; 198(1): 1-10, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31206174

RESUMEN

A20, a pivotal anti-inflammatory protein, preserves immune homeostasis and regulates prolonged inflammation. A previous study has shown that A20 expression levels are down-regulated in peripheral blood mononuclear cells (PBMCs) from patients with ankylosing spondylitis (AS). However, the precise role of A20 in reducing autoimmune disorders needs to be further elucidated. In this study, A20 expression was found to be preferentially reduced on circulating CD56bright natural killer (NK) cells in patients with AS, and its level was negatively correlated with that of proinflammatory cytokines. Further investigation demonstrated that A20 reduces interferon (IFN)-γ and tumour necrosis factor (TNF)-α production in CD56bright NK cells after stimulation with monokines or phorbol myristate acetate (PMA)/ionomycin(P/I). Furthermore, CD56bright NK cells isolated from AS patients promote TNF-α secretion by autologous monocytes, and increasing the A20 expression level partially attenuates this process. More importantly, decreased A20 expression on circulating CD56bright NK cells is associated with worse disease status in patients with AS. Our findings reveal that A20 participates in the pathogenesis of AS by negatively regulating CD56bright NK cells and that its reduced expression contributes to a worsened disease status in patients with AS.


Asunto(s)
Antígeno CD56/metabolismo , Células Asesinas Naturales/metabolismo , Espondilitis Anquilosante/metabolismo , Proteína 3 Inducida por el Factor de Necrosis Tumoral alfa/metabolismo , Estudios de Casos y Controles , Citocinas/metabolismo , Humanos , Inflamación/metabolismo , Interferón gamma/metabolismo , Ionomicina/metabolismo , Leucocitos Mononucleares/metabolismo , Activación de Linfocitos/fisiología , Acetato de Tetradecanoilforbol/metabolismo
8.
Beijing Da Xue Xue Bao Yi Xue Ban ; 51(6): 1019-1024, 2019 Dec 18.
Artículo en Zh | MEDLINE | ID: mdl-31848497

RESUMEN

OBJECTIVE: Antibodies against carbamylated protein (anti-CarP) were found to be a promising marker to evaluate joint damage and disease activity in patients with rheumatoid arthritis (RA). However, whether anti-CarP antibodies were present in systemic lupus erythematosus (SLE) remained ambiguity. We have therefore undertaken this study to assess the levels of serum anti-CarP antibodies and to evaluate their clinical value in SLE. METHODS: Serum levels of antibodies against carbamylatedfibrinogen (anti-CarP) were measured by enzyme-linked immunosorbent assay (ELISA) in 105 SLE patients and 73 healthy controls. Other clinical and laboratory measurements of the SLE patients were collected from medical records. Data analyses between anti-CarP antibodies and other laboratory measurements were performed using SPSS software for Windows 24.0. RESULTS: The levels of serum anti-CarP antibodies in the patients with SLE were significantly higher than those in the healthy controls (P<0.05). There were significant differences between the anti-CarP-positive group and anti-CarP-negative group in many clinical features. The disease duration, values of ESR, CRP, RF, anti-cardiolipin, anti-dsDNA, D-dipolymer, IgA and IgG were significantly higher in the anti-CarP-positive group compared with the negative group (P<0.05). Conversely, the values of complement 3, complement 4, peripheral blood RBC, and hemoglobin were significantly lower in anti-CarP-positive group than in the negative group(P<0.05). Moreover, the incidence of increase of erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), rheumatoid factor (RF), D-dipolymer, decrease of peripheral blood RBC, hemoglobin, complement 3, complement 4, and positive rate of anti-dsDNA were significant different between the two groups(P<0.05). The positive rate of anti-CarP (21.9%) was higher than that of anti-Sm (15.24%), and close to anti-ribosomal P protein (22.86%) in our SLE patients. In addition, anti-CarP antibody was present in the SLE patients lacking the disease specific antibodies, including anti-Sm (anti-CarP positive rate 20.2%, 18/89), anti-dsDNA (anti-CarP positive rate 9.3%, 4/43), anti-nucleosome (anti-CarP positive rate 12.5%, 6/48), and anti-ribosomal P protein antibody (anti-CarP positive rate 20.9%, 17/81). Moreover, the high levels of anti-CarP antibodies were correlated with short disease duration, low C3, C4, RBC, and hemoglobin (P<0.05), high ESR, CRP, IgA, IgG, RF, anti-cardiolipin, anti-dsDNA, and D-dipolymer (P<0.05). CONCLUSION: The level of anti-CarP antibody was increased in the serum of patients with SLE. There were correlations between anti-CarP antibodies and clinical and laboratory indicators of SLE patients.


Asunto(s)
Lupus Eritematoso Sistémico , Autoanticuerpos , Sedimentación Sanguínea , Ensayo de Inmunoadsorción Enzimática , Fibrinógeno , Humanos , Factor Reumatoide
11.
Clin Genet ; 93(1): 178-181, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-28646489

RESUMEN

Mutations in Plastin-3 (PLS3) have been identified as a cause of X-linked osteoporosis. To reveal the molecular mechanism of PLS3 on osteoporosis, we characterized the p.Ala253_Leu254insAsn mutation in PLS3. We first identified Lymphocyte cytosolic protein 1 (LCP1) as a binding partner of PLS3 and the mutation disrupted the interaction between them. We then confirmed the roles of PLS3 and LCP1 in the regulation of intracellular Ca2+ , which was weakened by the mutant PLS3. Moreover, the interaction between PLS3 and LCP1 was enhanced under a low concentration of extracellular Ca2+ . However, the mutation in PLS3 weakened the responsiveness. The reduced regulation on Ca2+ caused by p.Ala253_Leu254insAsn may be the possible molecular mechanism of osteoporosis.


Asunto(s)
Predisposición Genética a la Enfermedad/genética , Glicoproteínas de Membrana/genética , Proteínas de Microfilamentos/genética , Mutación , Osteoporosis/genética , Calcio/metabolismo , Calcio/farmacología , Línea Celular , Enfermedades Genéticas Ligadas al Cromosoma X/genética , Células HEK293 , Humanos , Glicoproteínas de Membrana/metabolismo , Proteínas de Microfilamentos/metabolismo , Unión Proteica/efectos de los fármacos
12.
Zhonghua Yi Xue Za Zhi ; 98(7): 502-507, 2018 Feb 13.
Artículo en Zh | MEDLINE | ID: mdl-29495218

RESUMEN

Objective: To explore the differences of one year death and stroke recurrence between ischemic stroke patients with intracranial atherosclerotic stenosis or occlusion of anterior circulation and those of posterior circulation. Methods: All the patients were from the Chinese Intracranial Atherosclerosis Study (CICAS), between October 2007 and June 2009; patients with extracranial stenosis or occlusion, patients without acute infarction by diffusion weighted image, and patients with intracranial atherosclerosis of both anterior and posterior circulation were excluded.All the enrolled patients were divided into three groups: no significant intracranial atherosclerosis group (n=964), anterior circulation intracranial atherosclerosis group (n=440), posterior circulation intracranial atherosclerosis group (n=233). One year outcome was evaluated by any cause of death and stroke recurrence. Results: Of the 1 637 patients, 30 cases were died and 58 cases had stroke recurrence within one year.Compared with : no significant intracranial atherosclerosis group, adjusted hazard ratio (95% confidence interval) of one-year death for anterior and posterior circulation intracranial atherosclerosis group were 1.349 (0.311-5.851), 4.542 (1.227-16.813), respectively.Adjusted hazard ratio (95% confidence interval) of one year stroke recurrence were 1.663 (0.620-4.460) and 2.464 (0.935-6.493), respectively. Conclusions: Ischemic stroke patients with intracranial atherosclerosis of posterior circulation has higher risk of one year death. One year stroke recurrence risk for patients with intracranial atherosclerosis of anterior and posterior circulation needs to be further evaluated.


Asunto(s)
Arteriosclerosis Intracraneal , Accidente Cerebrovascular , Isquemia Encefálica , Humanos , Recurrencia , Factores de Riesgo
14.
J Viral Hepat ; 24 Suppl 1: 57-65, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-29082644

RESUMEN

Transient elastography (TE) is accurate in staging fibrosis noninvasively. However, a reliable serum biomarker with comparable accuracy is also important, especially when TE is unreliable/unavailable. Therefore, we aimed to evaluate the diagnostic performance of serum Golgi protein 73 (GP73) for significant fibrosis in patients with chronic HBV infection. A total of 801 patients with chronic liver disease (CLD; 492 chronic HBV infection and 309 non-HBV liver disease) with liver biopsy performance were enrolled. Healthy controls (n = 180) and hepatocellular carcinoma (HCC) patients (n = 85) were included for comparisons. Liver biopsy was used as the reference method for fibrosis staging. Serum GP73 level was measured in duplicate in double-blind fashion. Serum GP73 was highest in HCC but also significantly higher in chronic hepatitis B than in healthy controls. The elevation of serum GP73 in non-HCC patients was significantly associated with the presence of significant fibrosis independently of ALT level, liver stiffness (LS) value, inflammation grade and other confounding factors. The diagnostic performance of serum GP73 was accurate in antiviral-naïve HBV patients (area under the receiver operating curve [AUROC], 0.76 95% CI: 0.72-0.81) but not in patients with ongoing antiviral treatment (AUROC, 0.60). The utility of serum GP73 was also confirmed in non-HBV CLD (AUROC, 0.80 95% CI: 0.75-0.85). Serum GP73 was comparable to LS (AUROC, 0.78 95% CI: 0.73-0.82) and significantly better than AST to platelet ratio index (APRI) (AUROC, 0.67 95% CI: 0.62-0.72) and FIB-4 (AUROC, 0.68 95% CI: 0.63-0.73). In conclusion, serum GP73 is an accurate serum marker for significant fibrosis in chronic HBV infection, with higher accuracy than APRI and FIB-4. Serum GP73 is potentially a complementary tool for TE when evaluating the necessity of antiviral treatment, particularly in patients without definite antiviral indication.


Asunto(s)
Hepatitis B Crónica/sangre , Hepatitis B Crónica/complicaciones , Cirrosis Hepática/diagnóstico , Cirrosis Hepática/etiología , Proteínas de la Membrana/sangre , Biomarcadores , Biopsia , Estudios Transversales , Diagnóstico por Imagen de Elasticidad , Femenino , Humanos , Masculino , Pronóstico , Curva ROC , Reproducibilidad de los Resultados
16.
Nucleic Acids Res ; 43(Database issue): D1163-70, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25477388

RESUMEN

BARD, the BioAssay Research Database (https://bard.nih.gov/) is a public database and suite of tools developed to provide access to bioassay data produced by the NIH Molecular Libraries Program (MLP). Data from 631 MLP projects were migrated to a new structured vocabulary designed to capture bioassay data in a formalized manner, with particular emphasis placed on the description of assay protocols. New data can be submitted to BARD with a user-friendly set of tools that assist in the creation of appropriately formatted datasets and assay definitions. Data published through the BARD application program interface (API) can be accessed by researchers using web-based query tools or a desktop client. Third-party developers wishing to create new tools can use the API to produce stand-alone tools or new plug-ins that can be integrated into BARD. The entire BARD suite of tools therefore supports three classes of researcher: those who wish to publish data, those who wish to mine data for testable hypotheses, and those in the developer community who wish to build tools that leverage this carefully curated chemical biology resource.


Asunto(s)
Bioensayo , Bases de Datos Factuales , Ensayos Analíticos de Alto Rendimiento , Minería de Datos , Internet , Sondas Moleculares , Programas Informáticos
17.
Lett Appl Microbiol ; 65(1): 90-97, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28474344

RESUMEN

Due to the self-produced binary toxins BinA/BinB, some Lysinibacillus sphaericus isolates exhibit high toxicity against mosquito larvae and are utilized in mosquito control programmes. Previous whole-genome sequencing revealed the presence of a large plasmid pBsph in L. sphaericus C3-41, which contains a 30·5-kb duplication of the genome including the binary toxin genes binA/binB. This was confirmed by Southern blot and qPCR experiments in this study. Mutants of L. sphaericus C3-41, bearing disruptions of the chromosomal-bin (C3-41ΔCab ) or the plasmid-bin (C3-41ΔPab ) and a plasmid-cured strain G725, were generated. It was observed that the three mutants, especially that of C3-41ΔPab and G725, had lower mRNA level from the early to middle sporulation phase and expressed less binary toxin during the whole sporulation phase. The mosquitocidal activity of the wild strain against 4th instar Culex quinquefasciatus larvae determined by LC50 displayed about 4, 15 and 35 times higher than that of C3-41ΔCab , C3-41ΔPab and G725 respectively. These results suggest that both chromosomal- and plasmid-borne bin genes, especially the latter, contribute to the full toxicity of the wild strain. The study provides an important clue for the evolution and application of mosquitocidal L. sphaericus. SIGNIFICANCE AND IMPACT OF THE STUDY: This study provides the first empirical evidence that Lysinibacillus sphaericus C3-41 has chromosomal- and plasmid-borne bin operon and both are necessary for full toxicity against mosquito larvae, of which the plasmid-borne one contributes more to the production and activity of the binary toxin than the chromosomal-born one. The study provides an important clue for the evolution and application of mosquitocidal L. sphaericus.


Asunto(s)
Bacillaceae/metabolismo , Toxinas Bacterianas/metabolismo , Culex/efectos de los fármacos , Insecticidas/metabolismo , Larva/efectos de los fármacos , Control de Mosquitos/métodos , Animales , Bacillaceae/genética , Toxinas Bacterianas/genética , Microbiología del Suelo
18.
Beijing Da Xue Xue Bao Yi Xue Ban ; 49(3): 446-450, 2017 Jun 18.
Artículo en Zh | MEDLINE | ID: mdl-28628145

RESUMEN

OBJECTIVE: To explore the relationship between glycemic control and visceral adiposity index (VAI) among type 2 diabetes mellitus (T2DM) patients. METHODS: A community-based epidemiological field study for patients with T2DM aged ≥ 40 years was conducted in China.Every participant underwent physical examinations, biochemical tests of fasting glucose, glycosylated hemoglobin (HbA1c), total cholesterol (TC), triglyceride (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C) and so on, and a questionnaire, including anthropometric characteristics, lifestyle, disease history, family history, and medication use. Those participants with HbA1c ≥7.0% were classified as the poorly controlled in our analysis of relationship between glycemic control and VAI. Anthropometric characteristics, lifestyle, and biochemical indexes of the participants were compared among the groups of different VAI levels. Logistic models were applied in multiple analysis adjusting for possible confounders. RESULTS: A total of 1 607 patients with T2DM were recruited in our analysis with a mean age of (59.4±8.1) years and an average T2DM duration of (7.0±6.4) years. Among them, 78.3% were on hypoglycemic therapy. The cutoff points of quartiles of VAI were calculated for the males and females, respectively. According to the ascending order of the quartiles of VAI, the participants were divided into four groups, i.e. Q1, Q2, Q3, and Q4. The poor glycemic control rate for these groups were 60.6%, 65.7%, 70.1%, and 71.0%, respectively (Trend χ2=12.20, P<0.001). After adjustment for age, gender, systolic blood pressure (SBP), diastolic blood pressure (DBP), LDL-C, smoking, cardio-cerebral vascular disease (CVD) history, hypoglycemic therapy, T2DM duration, and family history of diabetes, the Logistic regression models showed that the glycemic control rate was significantly associated with VAI levels among the patients with T2DM. Compared with the participants in group Q1, the ORs of poor glycemic control for those in groups Q2, Q3, and Q4 were 1.239 (95%CI 0.918 to 1.672), 1.513 (95%CI 1.117 to 2.050), and 1.535 (95%CI 1.128 to 2.088), respectively (trend P=0.003). With each quartile increase in VAI, the OR of poor glycemic control was 1.162 (95%CI 1.054 to 1.282). CONCLUSION: The glycemic control among the patients with T2DM is significantly associated with VAI. High level of VAI is an indicator of poor glycemic control.


Asunto(s)
Adiposidad , Glucemia , Diabetes Mellitus Tipo 2/fisiopatología , Anciano , Presión Sanguínea , China , HDL-Colesterol , LDL-Colesterol , Femenino , Hemoglobina Glucada , Humanos , Hipoglucemiantes , Masculino , Persona de Mediana Edad , Obesidad Abdominal , Triglicéridos
20.
Genet Mol Res ; 15(1)2016 Feb 05.
Artículo en Inglés | MEDLINE | ID: mdl-26909947

RESUMEN

The aim of this study was to explore the relationship between adiponectin (ADPN) and hemorrhagic shock (HS) and the recovery after HS. This is significant for further understanding of the pathophysiological processes of HS and the development of better treatments. In total, 72 male C57BL/6 mice were assigned randomly to three groups: control, HS, and recovery (N = 24). The HS mouse model was constructed by hemorrhage of the carotid artery and recovery was achieved by tail vein injection of Ringer's solution. The level of ADPN in the peripheral blood of mice before and after recovery was detected by enzyme-linked immunosorbent assay. Compared to control, HS mice showed significantly decreased ADPN levels with the extension of HS time while the level of ADPN in recovery mice increased significantly and remained high. The variation of ADPN levels was closely associated with the occurrence of HS in mice and their recovery, suggesting that ADPN might act as a biomarker of inflammation and have potential for the treatment of HS.


Asunto(s)
Adiponectina/sangre , Modelos Animales de Enfermedad , Inflamación , Recuperación de la Función , Choque Hemorrágico/sangre , Adiponectina/inmunología , Animales , Biomarcadores , Arterias Carótidas/metabolismo , Arterias Carótidas/fisiopatología , Masculino , Ratones , Choque Hemorrágico/inmunología , Choque Hemorrágico/metabolismo , Choque Hemorrágico/fisiopatología
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