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1.
Plant Physiol ; 2024 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-38889048

RESUMEN

Transcriptional reprogramming is critical for plant immunity. Several calmodulin (CaM)-binding protein 60 (CBP60) family transcription factors (TFs) in Arabidopsis (Arabidopsis thaliana), including CBP60g, Systemic Acquired Resistance Deficient 1 (SARD1), CBP60a, and CBP60b, are critical for and show distinct roles in immunity. However, there are additional CBP60 members whose function is unclear. We report here that Arabidopsis CBP60c-f, four uncharacterized CBP60 members, play redundant roles with CBP60b in the transcriptional regulation of immunity responses, whose pCBP60b-driven expression compensates the loss of CBP60b. By contrast, neither CBP60g nor SARD1 is inter-changeable with CBP60b, suggesting clade-specific functionalization. We further show that function of CBP60b clade TFs relies on DNA-binding domains (DBDs) and CaM-binding domains, suggesting that they are downstream components of calcium signaling. Importantly, we demonstrate that CBP60s encoded in earliest land plant lineage Physcomitrium patens and Selaginella moellendorffii, are functionally homologous to Arabidopsis CBP60b, suggesting that the CBP60b clade contains the prototype TFs of the CBP60 family. Furthermore, tomato and cucumber CBP60b-like genes rescue the defects of Arabidopsis cbp60b and activate the expression of tomato and cucumber SALICYLIC ACID INDUCTION DEFICIIENT2 (SID2) and ENHANCED DISEASE SUSCEPTIBILITY 1 (EDS1) genes, suggesting that immune response pathways centered on CBP60b are also evolutionarily conserved. Together, these findings suggest CBP60b clade transcription factors are functionally conserved in evolution and positively mediate immunity.

2.
Mol Cell Probes ; 76: 101964, 2024 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-38810840

RESUMEN

Breast cancer (BRCA) is the most common cancer among women. Adriamycin (ADR), also known as doxorubicin (Dox), is a commonly used chemotherapeutic agent for BRCA patients, however, the susceptibility of tumor cells to develop resistance to Dox has severely limited its clinical use. One new promising therapeutic target for breast cancer patients is exosomes. The objective of this study was to investigate the role of exosomes in regulating Dox resistance in BRCA. In this study, the exosomes from both types of cells were extracted by differential centrifugation. The effect of exosomes on drug resistance was assessed by laser confocal microscopy, MTT assay, and qRT-PCR. The miRNA was transfected into cells using Lipofectamine 2000, which was then evaluated for downstream genes and changes in drug resistance. Exosomes from MCF-7 cells (MCF-7/exo) and MCF-7/ADR cells (ADR/exo) were effectively extracted in this study. The ADR/exo was able to endocytose MCF-7 cells and make them considerably more resistant to Dox. Moreover, we observed a significant difference in miR-34a-5p expression in MCF-7/ADR and ADR/exo compared to MCF-7 and MCF-7/exo. Among the miR-34a-5p target genes, NOTCH1 displayed a clear change with a negative correlation. In addition, when miR-34a-5p expression was elevated in MCF-7/ADR cells, the expression of miR-34a-5p in ADR/exo was also enhanced alongside NOTCH1, implying that exosomes may carry miRNA into and out of cells and perform their function. In conclusion, exosomes can influence Dox resistance in breast cancer cells by regulating miR-34a-5p/NOTCH1. These findings provide novel insights for research into the causes of tumor resistance and the enhancement of chemotherapy efficacy in breast cancer.

3.
Anim Biotechnol ; 33(6): 1003-1013, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33439093

RESUMEN

The wedge-tailed green pigeon (Treron sphenurus) has a protective value in the evolution of the family Columbidae. In this study, the complete mitogenome of T. sphenurus from Baise City, China, which represents the first sequenced species of the genus Treron in Tribe Treronini, is reported. This was accomplished using PCR-based methods and a primer-walking sequencing strategy with genus-specific primers. The mitogenome was found to be 18,919 bp in length comprising 37 genes, including 13 protein-coding genes, two rRNA genes, 22 tRNA genes, and one control region. In terms of structure and composition, many similarities were found between the T. sphenurus and Hemiphaga novaeseelandiae (New Zealand pigeon) mitogenomes. This was further supported by phylogenetic analysis showing that T. sphenurus has a close evolutionary relationship with H. novaeseelandiae. The complete mitogenome of T. sphenurus reported here is expected to provide valuable molecular information for further studies on the phylogeny of the genus Treron and for analyses of the taxonomic status of the family Columbidae.


Asunto(s)
Columbidae , Genoma Mitocondrial , Animales , Filogenia , Columbidae/genética , Genoma Mitocondrial/genética , Columbiformes/genética , Composición de Base , Genómica
4.
Arch Virol ; 162(3): 901-904, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-27909932

RESUMEN

Soybean mosaic virus (SMV) is a devastating plant virus classified in the family Potyviridae, and known to infect cultivated soybeans (Glycine max). In this study, seven new SMVs were isolated from wild soybean samples and analyzed by whole-genome sequencing. An updated SMV phylogeny was built with the seven new and 83 known SMV genomic sequences. Results showed that three northeastern SMV isolates were distributed in clade III and IV, while four southern SMVs were grouped together in clade II and all contained a recombinant BCMV fragment (~900 bp) in the upstream part of the genome. This work revealed that wild soybeans in China also act as important SMV hosts and play a role in the transmission and diversity of SMVs.


Asunto(s)
Genoma Viral , Glycine max/virología , Enfermedades de las Plantas/virología , Potyvirus/genética , Secuencia de Bases , China , Datos de Secuencia Molecular , Filogenia , Potyvirus/clasificación , Potyvirus/aislamiento & purificación , Proteínas Virales/genética
5.
Theor Appl Genet ; 129(11): 2227-2236, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-27544525

RESUMEN

KEY MESSAGE: The Rsv1 - h gene in cultivar Suweon 97, which confers resistance to SMVs, was mapped to a 97.5-kb location (29,815,195-29,912,667 bp on chromosome 13) in the Rsv1 locus, thereby providing additional insights into the molecular nature underlying variations in resistance alleles in this particular locus. Soybean mosaic virus (SMV) is a well-known devastating pathogen of soybean (Glycine max (L.) Merrill.) causing significant yield losses and seed quality deterioration. A single dominant allele, Rsv1-h, which confers resistance to multiple SMV strains, was previously reported in the cultivar Suweon 97, but its exact location is unknown. In the present study, Suweon 97 was crossed with a SMV-sensitive cultivar, Williams 82. Inoculating 267 F 2 individuals with two Chinese SMV strains (SC6-N and SC7-N) demonstrated that one single dominant gene confers SMV resistance. Another 1,150 F 2 individuals were then screened for two simple sequence repeat (SSR) markers (BARCSOYSSR_13_1103 and BARCSOYSSR_13_1187) that flank the Rsv1 locus. Seventy-four recombinants were identified and 20 additional polymorphic SSR markers within the Rsv1 region were then employed in genotyping these recombinants. F 2:3 and F 3:4 recombinant lines were also inoculated with SC6-N and SC7-N to determine their phenotypes. The final data revealed that in Suweon 97, the Rsv1-h gene that confers resistance to SC6-N and SC7-N was flanked by BARCSOYSSR_13_1114 and BARCSOYSSR_13_1115, two markers that delimit a 97.5-kb region in the reference Williams 82 genome. In such region, eight genes were present, of which two, Glyma13g184800 and Glyma13g184900, encode the characteristic CC-NBS-LRR type of resistance gene and were considered potential candidates for Rsv1-h.


Asunto(s)
Resistencia a la Enfermedad/genética , Genes de Plantas , Glycine max/genética , Enfermedades de las Plantas/genética , Potyvirus , Cruzamientos Genéticos , ADN de Plantas/genética , Genes Dominantes , Marcadores Genéticos , Repeticiones de Microsatélite , Fenotipo , Enfermedades de las Plantas/virología , Glycine max/virología
6.
Crit Care ; 20(1): 167, 2016 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-27250351

RESUMEN

BACKGROUND: The quick Sepsis-related Organ Failure Assessment (qSOFA) is a new screening system for sepsis that has prognostic performance equal to the full SOFA for patients with suspected infection outside the intensive care unit (ICU). The predictive value of qSOFA for mortality and site of care in patients with pneumonia is not clear. The present study was designed to investigate the predictive performance of qSOFA, CRB-65 (confusion, respiratory rate ≥30/minute, systolic blood pressure <90 mmHg or diastolic blood pressure ≤60 mmHg, age ≥65 years) and CRB (confusion, respiratory rate ≥30/minute, systolic blood pressure <90 mmHg or diastolic blood pressure ≤60 mmHg) for mortality, hospitalisation and ICU admission in patients with pneumonia in the emergency department (ED). METHODS: Retrospective analyses of published data on adult patients with pneumonia presenting between January 2012 and May 2014 were undertaken. The prevalence of 28-day mortality, hospitalisation and ICU admission were compared with regard to qSOFA, CRB and CRB-65 scores. The performance of these three systems for predicting outcomes was compared. RESULTS: Of 1641 patients, 861 (53 %) were hospitalised (38 % in a general ward, 15 % in the ICU), and the remaining 780 (47 %) were treated as outpatients or were observed in the ED. Within 28 days, 547 (33 %) of 1641 patients died. CRB-65, CRB and qSOFA scores of patients who died, were hospitalised and admitted to the ICU than those who survived and were not hospitalised or admitted to the ICU (P < 0.001). AUC values of qSOFA for prediction of 28-day mortality, hospitalisation and ICU admission were similar to those for CRB-65 and CRB. Patients with qSOFA scores of 0, 1, 2 and 3 were associated with, respectively, mortality of 16.3 %, 24.4 %, 48.2 % and 68.4 %; prevalence of hospitalisation of 37.2 %, 47.4 %, 61.6 % and 73.7 %; and prevalence of ICU admission of 9.3 %, 9.1 %, 22.4 % and 45.3 %. Patients with qSOFA scores of 2 and 3 had a significantly higher prevalence of mortality and ICU admission than patients with identical CRB-65 scores. CONCLUSIONS: qSOFA is better than CRB-65 for identification of a high risk of mortality and requirement of ICU admission.


Asunto(s)
Sepsis/diagnóstico , Sepsis/mortalidad , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Confusión/mortalidad , Servicio de Urgencia en Hospital/estadística & datos numéricos , Femenino , Humanos , Hipotensión/mortalidad , Unidades de Cuidados Intensivos/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Puntuaciones en la Disfunción de Órganos , Neumonía/mortalidad , Frecuencia Respiratoria , Estudios Retrospectivos , Medición de Riesgo
7.
Am J Emerg Med ; 34(9): 1788-93, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27321936

RESUMEN

OBJECTIVE: The objectives of this study are to investigate the performance of the quick Sepsis-related Organ Failure Assessment (qSOFA) in predicting mortality and intensive care unit (ICU) admission in patients with clinically diagnosed infection and to compare its performance with that of Mortality in Emergency Department Sepsis (MEDS), Acute Physiology and Chronic Health Evaluation (APACHE) II, and Sepsis-related Organ Failure Assessment (SOFA). METHODS: From July to December 2015, we retrospectively analyzed 477 patients clinically diagnosed with infection in the emergency department. We compared the performance of SOFA, MEDS, APACHE II, and qSOFA in predicting ICU admission and 28-day mortality. RESULTS: All scores were higher in nonsurvivors and ICU patients than in survivors and non-ICU patients (P< .001). The area under the receiver operating characteristic curve of qSOFA was lower than that of MEDS (0.666 vs 0.751; P< .05) and similar to that of SOFA (0.729) and APACHE II (0.732) in predicting 28-day mortality. The areas under the receiver operating characteristic curve of qSOFA, SOFA, MEDS, and APACHE II in predicting ICU admission were 0.636, 0.682, 0.661, and 0.640, respectively. There were no significant differences among the score systems. In patients with qSOFA scores less than 2 and greater than or equal to 2, 28-day mortality rates were 17.4% and 42.9% (P< .001), and ICU admission rates were 16.0% and 33.3% (P< .001). CONCLUSIONS: Quick SOFA predicted ICU admission with similar performance to that of SOFA, MEDS, and APACHE II. Its prognostic ability was similar to that of SOFA and APACHE II but slightly inferior to that of MEDS.


Asunto(s)
Infecciones del Sistema Nervioso Central/mortalidad , Servicio de Urgencia en Hospital , Unidades de Cuidados Intensivos/estadística & datos numéricos , Infecciones Intraabdominales/mortalidad , Neumonía/mortalidad , Pielonefritis/mortalidad , Sepsis/mortalidad , Infecciones de los Tejidos Blandos/mortalidad , APACHE , Anciano , Anciano de 80 o más Años , Bases de Datos Factuales , Femenino , Hospitalización , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Mortalidad , Puntuaciones en la Disfunción de Órganos , Pronóstico , Curva ROC , Estudios Retrospectivos , Medición de Riesgo , Índice de Severidad de la Enfermedad , Enfermedades Cutáneas Infecciosas/mortalidad
8.
Thorax ; 70(5): 404-10, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25716454

RESUMEN

OBJECTIVE: To investigate the predictive performance of lactate, CURB-65, and a combination of lactate and CURB-65 (LAC-CURB-65) for mortality, hospitalisation and intensive care unit (ICU) admission in pneumonia patients in the emergency department (ED). METHODS: Consecutive adult patients with pneumonia presenting from January 2012 to May 2014 were divided into low-, moderate- and high-risk groups according to lactate (<2.0, 2.0-4.0, >4.0 mmol/L), CURB-65 (≤1, 2, ≥3) and LAC-CURB-65 (patients with two low risks, any moderate risk, any high risk) values. Mortality, hospitalisation and ICU admission rates were compared between risk classes. RESULTS: Of 1641 patients, 861 (53%) were hospitalised (38% to a general ward, 15% to the ICU) while the remaining 780 (47%) were treated as outpatients or observed in the ED. 547/1641 (33%) patients died within 28 days. Lactate and CURB-65 were higher in patients who died, were hospitalised or were admitted to the ICU compared with patients who were not (p<0.001). Lactate and CURB-65 independently predicted outcomes. The performance of lactate in predicting 28-day mortality, hospitalisation and ICU admission was higher than that of CURB-65 (p<0.01). For LAC-CURB-65, patients at low or moderate risk had mortality rates of 2% and 14%, respectively, and hospitalisation rates of 15% and 40%, respectively, while none were admitted to ICU. Patients at high risk had the highest mortality (52%), hospitalisation (70%) and ICU admission rates (27%). CONCLUSIONS: Lactate is superior to CURB-65 in predicting mortality, hospitalisation and ICU admission in pneumonia patients in the ED. LAC-CURB-65 significantly improved the predictive value of CURB-65.


Asunto(s)
Cuidados Críticos , Servicio de Urgencia en Hospital , Hospitalización , Ácido Láctico/sangre , Neumonía/sangre , Neumonía/mortalidad , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Examen Físico , Neumonía/terapia , Valor Predictivo de las Pruebas , Pronóstico , Medición de Riesgo
9.
Crit Care ; 18(2): R74, 2014 Apr 16.
Artículo en Inglés | MEDLINE | ID: mdl-24739219

RESUMEN

INTRODUCTION: The predisposition, infection, response and organ dysfunction (PIRO) staging system was designed as a stratification tool to deal with the inherent heterogeneity of septic patients. The present study was conducted to assess the performance of PIRO in predicting multiple organ dysfunction (MOD), intensive care unit (ICU) admission, and 28-day mortality in septic patients in the emergency department (ED), and to compare this scoring system with the Mortality in Emergency Department Sepsis (MEDS) and Acute Physiology and Chronic Health Evaluation (APACHE II) scores. METHODS: Consecutive septic patients (n = 680) admitted to the ED of Beijing Chao-Yang Hospital were enrolled. PIRO, MEDS, and APACHE II scores were calculated for each patient on ED arrival. Organ function was reassessed within 3 days of enrollment. All patients were followed up for 28 days. Outcome criteria were the development of MOD within 3 days, ICU admission or death within 28 days after enrollment. The predictive ability of the four components of PIRO was analyzed separately. Receiver operating characteristic (ROC) curve and logistic regression analysis were used to assess the prognostic and risk stratification value of the scoring systems. RESULTS: Organ dysfunction independently predicted ICU admission, MOD, and 28-day mortality, with areas under the ROC curve (AUC) of 0.888, 0.851, and 0.816, respectively. The predictive value of predisposition, infection, and response was weaker than that of organ dysfunction. A negative correlation was found between the response component and MOD, as well as mortality. PIRO, MEDS, and APACHE II scores significantly differed between patients who did and did not meet the outcome criteria (P < 0.001). PIRO and APACHE II independently predicted ICU admission and MOD, but MEDS did not. All three systems were independent predictors of 28-day mortality with similar AUC values. The AUC of PIRO was 0.889 for ICU admission, 0.817 for MOD, and 0.744 for 28-day mortality. The AUCs of PIRO were significantly greater than those of APACHE II and MEDS (P < 0.05) in predicting ICU admission and MOD. CONCLUSIONS: The study indicates that PIRO is helpful for risk stratification and prognostic determinations in septic patients in the ED.


Asunto(s)
APACHE , Servicio de Urgencia en Hospital/normas , Puntuaciones en la Disfunción de Órganos , Sepsis/diagnóstico , Sepsis/mortalidad , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Servicio de Urgencia en Hospital/tendencias , Femenino , Humanos , Masculino , Persona de Mediana Edad , Mortalidad/tendencias , Pronóstico , Estudios Prospectivos , Medición de Riesgo/métodos , Medición de Riesgo/normas , Sepsis/terapia , Resultado del Tratamiento
10.
Am J Emerg Med ; 32(9): 982-6, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25059886

RESUMEN

OBJECTIVE: To evaluate the prognostic performance of lactate in septic patients in the emergency department (ED) and investigate how to add lactate to the traditional score systems. METHODS: This was a single-centered, prospective, observational cohort study conducted in ED of Beijing Chao-Yang Hospital. The study enrolled adult septic patients admitted to the ED. Arterial lactate was measured in every patient. Acute Physiology and Chronic Health Evaluation (APACHE) II, Sequential Organ Failure Assessment (SOFA), and Mortality in Emergency Department Sepsis (MEDS) scores were calculated on ED arrival. The primary outcome was 28-day mortality. RESULTS: The average levels of lactate, MEDS, APACHE II, and SOFA were much higher in nonsurvivors than in survivors (P < .001), and they were the independent predictors of 28-day mortality. Area under receiver operating characteristic (AUC) curves of MEDS, APACHE II, SOFA, and lactate were 0.74, 0.74, 0.75, and 0.79, respectively. The AUCs of combination lactate and MEDS, APACHE II, and SOFA were 0.81, 0.81, and 0.82, respectively and were much higher than that of score systems alone (P < .05). The AUCs of modified MEDS, APACHE II, and SOFA were 0.80, 0.80, and 0.81, respectively. The prognostic value of the modified score systems was superior to the original score systems and similar to the combination of the lactate and original score systems. CONCLUSIONS: Lactate is a prognostic predictor in septic patients in the ED, and it may improve the performance of APACHE II, SOFA, and MEDS scores in predicting mortality.


Asunto(s)
Servicio de Urgencia en Hospital/estadística & datos numéricos , Ácido Láctico/sangre , Sepsis/diagnóstico , Índice de Severidad de la Enfermedad , APACHE , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Persona de Mediana Edad , Estudios Prospectivos , Medición de Riesgo , Sepsis/sangre , Sepsis/mortalidad
11.
J AOAC Int ; 97(6): 1538-45, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25632431

RESUMEN

A sensitive and reliable analytical method based on HPLC/MSIMS has been developed for the simultaneous determination of 15 nitroimidazoles in cosmetics. A diversity of cosmetic samples, including powder, lotion, shampoo, and cream were collected. The samples were ultrasonically extracted with aqueous methanol, and the extracts were then subjected to cleanup bySPE using an Oasis HLB cartridge followed by filtration with a 0.20 pm membrane filter. Afterwards, chromatographic separation was performed on an XSelect CSH C18 column (2.1 x 150 mm, 3.5 pm) maintained at 30°C within 15 min by a gradient of acetonitrile-0.1% aqueous formic acid solution at a flow rate of 0.25 mL/min. The mass spectrometric detection was carried, out using electrospray positive ionization under the multiple reaction monitoring mode. A good linearity was observed over the concentration range from 0.5 to 500 ng/mL. The intraday and interday precisions, which were investigated by determining all target compounds in cosmetics seven times/day and on 7 consecutive days, were below 5.00%. The mean recoveries at three spiked levels ranged from 80.42 to 100.83% with the RSDs from 0.45 to 9.02%. The LOQs were determined to be between 0.01 and 0.1 mg/kg. The method was sufficiently rapid, reliable, and sensitive for the determination of 15 nitroimidazoles in cosmetics.


Asunto(s)
Cromatografía Líquida de Alta Presión/métodos , Cosméticos/química , Nitroimidazoles/análisis , Espectrometría de Masas en Tándem/métodos , Límite de Detección , Nitroimidazoles/aislamiento & purificación , Extracción en Fase Sólida/métodos , Espectrometría de Masa por Ionización de Electrospray/métodos , Ultrasonido/métodos
12.
Crit Care ; 17(5): R244, 2013 Oct 20.
Artículo en Inglés | MEDLINE | ID: mdl-24138799

RESUMEN

INTRODUCTION: Presepsin levels are known to be increased in sepsis. The aim of this study was to evaluate the early diagnostic and prognostic value of Presepsin compared with procalcitonin (PCT), Mortality in Emergency Department Sepsis (MEDS) score and Acute Physiology and Chronic Health Evaluation II (APACHE II) score in septic patients in an emergency department (ED) and to investigate Presepsin as a new biomarker of sepsis. METHODS: This study enrolled 859 consecutive patients with at least two diagnostic criteria for systemic inflammatory response syndrome (SIRS) who were admitted to Beijing Chao-yang Hospital ED from December 2011 to October 2012, and 100 age-matched healthy controls. Patients were stratified into four groups: SIRS, sepsis, severe sepsis, and septic shock. Plasma Presepsin and serum PCT were measured, and MEDS score and APACHE II score were calculated at enrollment. Comparisons were analyzed using the Kruskal-Wallis and Mann-Whitney U tests. RESULTS: On admission, the median levels of plasma Presepsin increased with sepsis severity. The areas under the receiver operating characteristic (AUC) curves of Presepsin were greater than those of PCT in diagnosing sepsis, and predicting severe sepsis and septic shock. The AUC of Presepsin for predicting 28-day mortality in septic patients was slightly lower than that of PCT, MEDS score and APACHE II score. The AUC of a combination of Presepsin and MEDS score or APACHE II score was significantly higher than that of MEDS score or APACHE II score alone in predicting severe sepsis, and was markedly higher than that of Presepsin alone in predicting septic shock and 28-day mortality in septic patients, respectively. Plasma Presepsin levels in septic patients were significantly higher in non-survivors than in survivors at 28 days' follow-up. Presepsin, MEDS score and APACHE II score were found to be independent predictors of severe sepsis, septic shock and 28-day mortality in septic patients. The levels of plasma Presepsin were positively correlated with PCT, MEDS score and APACHE II score in every septic group. CONCLUSION: Presepsin is a valuable biomarker for early diagnosis of sepsis, risk stratification, and evaluation of prognosis in septic patients in the ED.


Asunto(s)
Calcitonina/sangre , Receptores de Lipopolisacáridos/sangre , Fragmentos de Péptidos/sangre , Precursores de Proteínas/sangre , Sepsis/diagnóstico , APACHE , Anciano , Biomarcadores/sangre , Péptido Relacionado con Gen de Calcitonina , Estudios de Casos y Controles , China , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Pronóstico , Estudios Prospectivos , Sensibilidad y Especificidad , Sepsis/sangre , Índice de Severidad de la Enfermedad , Choque Séptico/sangre , Choque Séptico/diagnóstico , Síndrome de Respuesta Inflamatoria Sistémica/sangre , Síndrome de Respuesta Inflamatoria Sistémica/diagnóstico
13.
Am J Emerg Med ; 31(7): 1017-21, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23688561

RESUMEN

OBJECTIVE: The aims of the present study were to evaluate the prognostic value of adrenomedullin (AM) in septic patients in the emergency department (ED) and to compare it with procalcitonin (PCT) and Mortality in Emergency Department Sepsis (MEDS) score. METHODS: We enrolled 837 consecutive patients who fulfilled the systemic inflammatory response syndrome criteria and were admitted to the ED of Beijing Chaoyang Hospital and 100 age-matched healthy controls. Serum AM and PCT were determined, and MEDS score was calculated at enrollment. The prognostic value of AM was compared with PCT and MEDS score. Primary outcome was in-hospital mortality. RESULTS: On admission, mean levels of AM were 28.66 ± 6.05 ng/L in 100 healthy controls, 31.65 ± 6.47 ng/L in 153 systemic inflammatory response syndrome patients, 33.24 ± 8.59 ng/L in 376 sepsis patients, 34.81 ± 8.33 ng/L in 210 severe sepsis patients, and 45.15 ± 9.87 ng/L in 98 septic shock patients. The differences between the 2 groups were significant. Adrenomedullin level was higher in nonsurvivors than in survivors in every group. The area under receiver operating characteristic curve of AM for predicting in-hospital mortality in septic patients was 0.773, which was better than PCT (0.701) and MEDS score (0.721). Combination of AM and MEDS score improved the accuracy of AM and MEDS score in predicting the risk of in-hospital mortality (area under receiver operating characteristic curve, 0.817). In logistic regression analysis, AM and MEDS score were independent predictors of in-hospital mortality. CONCLUSIONS: Adrenomedullin is valuable for prognosis in septic patients in the ED.


Asunto(s)
Adrenomedulina/sangre , Servicio de Urgencia en Hospital , Sepsis/sangre , Índice de Severidad de la Enfermedad , Anciano , Biomarcadores/sangre , Calcitonina/sangre , Péptido Relacionado con Gen de Calcitonina , Estudios de Casos y Controles , Femenino , Mortalidad Hospitalaria , Humanos , Estimación de Kaplan-Meier , Modelos Logísticos , Masculino , Persona de Mediana Edad , Pronóstico , Precursores de Proteínas/sangre , Curva ROC , Sepsis/mortalidad , Choque Séptico/sangre , Choque Séptico/mortalidad , Síndrome de Respuesta Inflamatoria Sistémica/sangre , Síndrome de Respuesta Inflamatoria Sistémica/mortalidad
16.
PLoS One ; 17(2): e0264591, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35226692

RESUMEN

The prevalence and molecular characteristics of Bartonella infections in small rodents in the Zhongtiao Mountain, China have been explored. In this study, the liver, spleen and kidney tissues of captured rodents were used for Bartonella spp. detection and identification by combination of real-time PCR of transfer-mRNA (ssrA) gene and traditional PCR and sequencing of citrate synthase (gltA) gene. It was shown that 49.52% of the rodents (52/105) were positive for Bartonella spp.. The infection rate in different gender (χ2 = 0.079, P = 0.778) and tissues (χ2 = 0.233, P = 0.890) of small rodents did not have statistical difference, but that in different small rodents (Fisher's exact test, P < 0.001) and habitats (χ2 = 5.483, P = 0.019) had statistical difference. And, the sequencing data suggests that Bartonella sequences (n = 31) were identified into three species, including 14 of B. grahamii, 3 of B. queenslandensis and 14 of unknown Bartonella species. Phylogenetic analysis showed that B. grahamii sequences were clustered with the isolates from South Korea and China, and B. queenslandensis sequences were mainly closely related to the isolates from China and Thailand. The genetic diversity analysis showed that B. grahamii and B. queenslandensis sequences exhibited noticeable intraspecies diversity. Taken together our data demonstrates the high prevalence and genetic diversity of Bartonella infections in small rodents in the Zhongtiao Mountain, especially a potential novel Bartonella specie was detected, which could benefit the prevention and control of rodent-Bartonella species in this area.


Asunto(s)
Bartonella
17.
Food Chem ; 323: 126842, 2020 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-32334316

RESUMEN

In this study, the effects of tempering with steam on the water distribution of wheat grains and the microbial load in wheat flour were investigated, as well as the physicochemical properties of wheat flour. Results showed that when steam treatment time was 320 s, the total plate count (TPC), yeast and mold count (YMC), and mesophilic aerobic spores (MAS) in flour decreased by 1.74, 1.99 and 1.01 lgCFU/g, respectively. Nuclear magnetic resonance (NMR) results showed that tempering with steam accelerated the water distribution of grains and significantly (p < 0.05) shortened the tempering time. Moreover, flour yield, particle size, ash content, and damaged starch content of flour were all altered. Furthermore, after tempering with steam, proteins were aggregated and starches were partially gelatinized, which caused dough development time and stability of flour increasing. Collectively, our findings indicated steam tempering could shorten the tempering time and improve the qualities of flour partly.

18.
Adv Ther ; 37(3): 1100-1113, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31981104

RESUMEN

INTRODUCTION: The prognostic performance of scoring systems for illness severity in infectious kidney transplant recipients (KTRs) is rarely reported. We investigated the ability of the scores for the quick Sequential Organ Failure Assessment (qSOFA), Sequential Organ Failure Assessment (SOFA) and Systemic Inflammatory Response Syndrome (SIRS) to predict in-hospital mortality, intensive care unit (ICU) admission and mechanical ventilation (MV) requirement. METHODS: This was a second analysis of a retrospective observational study. Scores for SIRS, SOFA and qSOFA were calculated upon hospitalization (infection onset was before hospitalization) or on the day of infection onset (infection episodes were during hospitalization). The primary outcome was in-hospital mortality. The secondary outcomes were ICU admission and MV requirement. Binary logistic regression and area under the receiver operating characteristic curve (AUC) were employed to assess prognostic performance. RESULTS: A total of 161 infectious episodes occurred in 97 KTRs. Forty patients (41%) experienced more than one episode. The SOFA score was available in 161 infections, and scores for qSOFA and SIRS were available in 160 infections. The SIRS score was not different between KTRs with opposite outcomes. The qSOFA score was higher in infections necessitating MV. The SOFA score was significantly higher in the deceased, those needing ICU admission, MV, and for those with positive etiology results. The SOFA score was the only independent predictor of in-hospital mortality, ICU admission, and MV requirement, and the AUCs were 0.879, 0.815, and 0.784, respectively. The optimum cutoff value of predicting the three outcomes was SOFA score ≥ 3. CONCLUSIONS: The SOFA score (but not those for SIRS and qSOFA) independently predicted in-hospital mortality, ICU admission, and MV requirement in infectious KTRs.


Asunto(s)
Infecciones/diagnóstico , Infecciones/mortalidad , Trasplante de Riñón , Puntuaciones en la Disfunción de Órganos , Adulto , Femenino , Mortalidad Hospitalaria/tendencias , Hospitalización/estadística & datos numéricos , Humanos , Infecciones/fisiopatología , Unidades de Cuidados Intensivos/estadística & datos numéricos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Pronóstico , Curva ROC , Respiración Artificial/estadística & datos numéricos , Estudios Retrospectivos
19.
Clin Transl Sci ; 13(3): 589-598, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-31961478

RESUMEN

This study intends to compare short-term efficacy of 12 chemotherapy regimens in treatment of advanced non-small cell lung cancer (NSCLC) by a network meta-analysis (NMA). PubMed, Cochrane Library, and Embase were searched from the inception of each database to June 2018. Randomized controlled trials (RCTs) of the 12 chemotherapy regimens for advanced NSCLC were included. Direct and indirect evidence were combined by NMA to evaluate the odds ratio and the surface under the cumulative ranking curves (SUCRA) of the 12 chemotherapy regimens. Nineteen RCTs that met our inclusion criteria were collected in this study. For partial response (PR), gemcitabine exhibited relatively poor efficacy compared with cisplatin + gemcitabine, carboplatin + gemcitabine, carboplatin + paclitaxel, paclitaxel + gemcitabine, and cisplatin + gemcitabine + vinorelbine. For overall response rate (ORR), gemcitabine had poorer efficacy than cisplatin + gemcitabine and paclitaxel + gemcitabine. For disease control rate (DCR), compared with carboplatin + gemcitabine and gemcitabine, paclitaxel + gemcitabine had a better efficacy. Gemcitabine had the lowest SUCRA values in terms of complete response, PR, ORR, stable disease, and DCR; whereas paclitaxel + gemcitabine ranked the highest in ORR, progressive disease, and DCR. The cluster analysis revealed that cisplatin + gemcitabine, paclitaxel + gemcitabine, and cisplatin + gemcitabine + vinorelbine had better short-term efficacy for advanced NSCLC. Collectively, short-term efficacy of multidrug combination chemotherapy regimens was superior to that of single-drug chemotherapy regimens for advanced NSCLC. Cisplatin + gemcitabine, paclitaxel + gemcitabine, and cisplatin + gemcitabine + vinorelbine may have particularly prominent short-term efficacy for advanced NSCLC.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Neoplasias Pulmonares/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/diagnóstico , Carcinoma de Pulmón de Células no Pequeñas/patología , Humanos , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/patología , Estadificación de Neoplasias , Metaanálisis en Red , Ensayos Clínicos Controlados Aleatorios como Asunto , Factores de Tiempo , Resultado del Tratamiento
20.
Cell Death Dis ; 11(7): 597, 2020 07 30.
Artículo en Inglés | MEDLINE | ID: mdl-32732965

RESUMEN

Oesophageal squamous cell carcinoma (ESCC) is a common and aggressive malignancy. Although many molecular alterations have been observed in ESCC, the mechanisms underlying the development and progression of this disease remain unclear. In the present study, miR-1224-5p was identified to be downregulated in ESCC tissues compared to normal tissues, and its low expression was correlated with shorter survival time in patients. In vitro experiments showed that miR-1224-5p inhibited the proliferation, colony formation, migration and invasion of ESCC cells. Mechanistic investigation revealed that miR-1224-5p directly targeted TNS4 and inhibited its expression, which led to the inactivation of EGFR-EFNA1/EPHA2-VEGFA (vascular endothelial growth factor A) signalling. Experiments in vivo confirmed the suppressive effect of miR-1224-5p on oesophageal cancer cells. By immunohistochemistry analysis of ESCC specimens, we found that TNS4 expression was positively correlated with that of VEGFA, and was significantly associated with lymph node metastasis and shorter survival time in patients. Together, our data suggest that miR-1224-5p downregulation is a frequent alteration in ESCC that promotes cell proliferation, migration, invasion and tumour growth by activating the EGFR-EFNA1/EPHA2-VEGFA signalling pathway via inhibition of TNS4 expression. Decreased miR-1224-5p and elevated TNS4 are unfavourable prognostic factors for ESCC patients.


Asunto(s)
Progresión de la Enfermedad , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/patología , Carcinoma de Células Escamosas de Esófago/genética , Carcinoma de Células Escamosas de Esófago/patología , MicroARNs/metabolismo , Tensinas/metabolismo , Animales , Autofagia/genética , Secuencia de Bases , Carcinogénesis/genética , Carcinogénesis/patología , Línea Celular Tumoral , Movimiento Celular/genética , Proliferación Celular/genética , Efrina-A1/metabolismo , Receptores ErbB/metabolismo , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Masculino , Ratones Endogámicos BALB C , Ratones Desnudos , MicroARNs/genética , Persona de Mediana Edad , Invasividad Neoplásica , Pronóstico , Proteolisis , Receptor EphA2/metabolismo , Transducción de Señal , Factor A de Crecimiento Endotelial Vascular/metabolismo
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