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1.
Rev Cardiovasc Med ; 25(5): 152, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-39076463

RESUMEN

Background: Early mobilization is one of the essential components of enhanced recovery after surgery (ERAS) pathways and has been shown to reduce complications and optimize patient outcomes. However, the effect of early mobilization for patients who undergo trans-femoral cardiac catheterization and the time for optimal mobilization timing remains controversial. We aimed to identify the safety of early mobilization and provide the optimum timing for early mobilization for patients undergoing trans-femoral cardiac catheterization. Methods: We searched MEDLINE, EMBASE, PubMed, Web of Science, Cochrane databases of systematic reviews, CINAHL, SCOPUS, China National Knowledge Infrastructure (CNKI), Wan Fang Database, and Chinese Science and Technology Periodical Database (VIP) comprehensively for randomized controlled trials associated with early mobilization, to explore its effects on patients after a trans-femoral cardiac catheterization. The risk of bias and heterogeneity of studies was assessed using the Revised Cochrane risk-of-bias tool for randomized trials (RoB 2) and I 2 index, respectively. The comprehensive Meta-analysis (CMA) was adopted to perform the meta-analysis. Results: We identified 14 trials with 2653 participants. Early mobilization was associated with significant decrease in back pain (mean difference (MD) = 0.634, 95% CI: 0.23-1.038; p = 0.002), especially in patients receiving instruction for early mobilization in 3 h~4 h versus 5 h~6 h (MD = 0.737, 95% CI: 0.431-1.043; p = 0.000) and 12 h versus 24 h (OR = 5.504, 95% CI: 1.646-18.407; p = 0.006) categories. The results of subgroup analysis also showed a significant risk reduction in urinary retention by early mobilization in 12 h versus 24 h (OR = 5.707, 95% CI: 1.859-17.521; p = 0.002) category. Conclusions: Early mobilization has not been shown to increase the risk of bleeding, hematoma, pseudoaneurysm, urinary retention, and pain at the puncture site after trans-femoral cardiac catheterization. Early mobilization is a practical initiative in ERAS, and it may be safe and feasible to advance the mobilization to 2 h~4 h.

2.
Value Health ; 27(3): 330-339, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38135215

RESUMEN

OBJECTIVES: This study aimed to develop the scoring functions for the recently developed value assessment framework (VAF) for China, which comprises 12 attributes. METHODS: We implemented a factorial survey among Chinese healthcare stakeholders from July to September 2022. A total of 240 hypothetical drug value profiles described by the VAF were grouped into 60 blocks and randomly assigned to respondents. Each respondent was assigned with 1 block, each presented in 3 disease scenarios of different levels of severity. For each profile, respondents were asked to assess the drug's value on a scale from 0 (lowest) to 10 (highest) and make 1 of the 3 insurance recommendations: cover, to be negotiated for coverage, or reject. Linear and logistic mixed-effects models were used to develop scoring functions for aggregating the value attributes. RESULTS: A total of 365 respondents participated in the survey. 3968 responses from 331 respondents were included in the analysis. Most of the included respondents were under 45 (n = 256, 77.3%), females (n = 208, 62.8%), living in urban areas (n = 296, 89.4%), and with a bachelor's degree or higher (n = 303, 91.5%). Health benefits and safety carried more weights than other attributes in the scoring functions across disease scenarios. The value and probability of entering negotiation or receiving insurance coverage for the attribute profiles for severe/critical disease were higher than for mild/moderate disease. CONCLUSIONS: The scoring functions of the VAF can be used to assess the value of a drug and its probability of entering negotiation or receiving insurance coverage in China.


Asunto(s)
Atención a la Salud , Cobertura del Seguro , Femenino , Humanos , Encuestas y Cuestionarios , Probabilidad , China
3.
Curr Microbiol ; 81(11): 358, 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39285060

RESUMEN

Antagonistic bacterial strains from Bacillus spp. have been widely studied and utilized in the biocontrol of phytopathogens and the promotion of plant growth, but their impacts on the rhizosphere microecology when applied to crop plants are unclear. Herein, the effects of applying the antagonistic bacterium Bacillus subtilis S1 as a biofertilizer on the rhizosphere microecology of cucumbers were investigated. In a pot experiment on cucumber seedlings inoculated with S1, 3124 bacterial operational taxonomic units (OTUs) were obtained from the rhizosphere soils using high-throughput sequencing of 16S rRNA gene amplicons, and the most abundant phylum was Proteobacteria that accounted for 49.48% in the bacterial community. S1 treatment significantly reduced the abundances of soil bacterial taxa during a period of approximately 30 days but did not affect bacterial diversity in the rhizosphere soils of cucumbers. The enzymatic activities of soil nitrite reductase (S-Nir) and dehydrogenase (S-DHA) were significantly increased after S1 fertilization. However, the activities of soil urease (S-UE), cellulase (S-CL), and sucrase (S-SC) were significantly reduced compared to the control group. Additionally, the ammonium- and nitrate-nitrogen contents of S1-treated soil samples were significantly lower than those of the control group. S1 fertilization reshaped the rhizosphere soil bacterial community of cucumber plants. The S-CL activity and nitrate-nitrogen content in rhizosphere soil affected by S1 inoculation play important roles in altering the abundance of rhizosphere soil microbiota.


Asunto(s)
Bacillus subtilis , Bacterias , Cucumis sativus , Nitrógeno , Rizosfera , Microbiología del Suelo , Cucumis sativus/microbiología , Bacillus subtilis/genética , Bacillus subtilis/metabolismo , Nitrógeno/metabolismo , Bacterias/clasificación , Bacterias/genética , Bacterias/metabolismo , Bacterias/aislamiento & purificación , ARN Ribosómico 16S/genética , Fertilizantes/análisis , Suelo/química , Microbiota , Filogenia
4.
J Orthop Sci ; 29(2): 681-689, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36775785

RESUMEN

BACKGROUND: Cognitive behavioral therapy (CBT) is a structured, short-term psychotherapy approach that may have positive effects in terms of relieving postoperative pain. The main objective of this study was to determine the effect of CBT on pain and joint function in patients after total joint arthroplasty. METHODS: We searched 3 electronic databases including randomized controlled studies (RCTs) using CBT as an intervention. The main results of this study were to determine pain intensity by NRS, VAS, WOMAC pain Scale, PCS, and joint function by HHS, OKS, EQ-5D, ROM. Data extraction and quality assessment of included RCTs were independently performed by the authors and date analysis was performed by RevMan V.5.4. RESULTS: Among the 605 studies, 9 RCTS were included in this systematic review and meta-analysis. The study showed that the difference between CBT and usual care groups in PCS (≤3months), NRS, VAS (≤3months) were statistically significant (P < 0.05); the difference between CBT and usual care groups in PCS (≥12months), WOMAC Pain Scale, and VAS (≥12months) were not statistically significant (P > 0.05), indicating that CBT can improve pain in patients after arthroplasty in the early term. In addition, the difference between CBT and usual care groups in OKS (≤3months), HSS, ROM (≤3months), EQ-5D (≤3months) were not statistically significant (P > 0.05); the difference between CBT and usual care groups in EQ-5D (≥12months) were statistically significant (P < 0.05), indicating that the quality of life in patients after total joint arthroplasty were improved with the extension of follow-up time. CONCLUSIONS: This study shows that CBT can relieve pain in patients with total joint arthroplasty in the early postoperative period and improve quality of life to some extent over time.


Asunto(s)
Terapia Cognitivo-Conductual , Humanos , Ensayos Clínicos Controlados Aleatorios como Asunto , Dolor Postoperatorio/terapia , Calidad de Vida , Artroplastia
5.
J Transl Med ; 21(1): 885, 2023 Dec 06.
Artículo en Inglés | MEDLINE | ID: mdl-38057859

RESUMEN

BACKGROUND: With the development of cancer precision medicine, a huge amount of high-dimensional cancer information has rapidly accumulated regarding gene alterations, diseases, therapeutic interventions and various annotations. The information is highly fragmented across multiple different sources, making it highly challenging to effectively utilize and exchange the information. Therefore, it is essential to create a resource platform containing well-aggregated, carefully mined, and easily accessible data for effective knowledge sharing. METHODS: In this study, we have developed "Consensus Cancer Core" (Tri©DB), a new integrative cancer precision medicine knowledgebase and reporting system by mining and harmonizing multifaceted cancer data sources, and presenting them in a centralized platform with enhanced functionalities for accessibility, annotation and analysis. RESULTS: The knowledgebase provides the currently most comprehensive information on cancer precision medicine covering more than 40 annotation entities, many of which are novel and have never been explored previously. Tri©DB offers several unique features: (i) harmonizing the cancer-related information from more than 30 data sources into one integrative platform for easy access; (ii) utilizing a variety of data analysis and graphical tools for enhanced user interaction with the high-dimensional data; (iii) containing a newly developed reporting system for automated annotation and therapy matching for external patient genomic data. Benchmark test indicated that Tri©DB is able to annotate 46% more treatments than two officially recognized resources, oncoKB and MCG. Tri©DB was further shown to have achieved 94.9% concordance with administered treatments in a real clinical trial. CONCLUSIONS: The novel features and rich functionalities of the new platform will facilitate full access to cancer precision medicine data in one single platform and accommodate the needs of a broad range of researchers not only in translational medicine, but also in basic biomedical research. We believe that it will help to promote knowledge sharing in cancer precision medicine. Tri©DB is freely available at www.biomeddb.org , and is hosted on a cutting-edge technology architecture supporting all major browsers and mobile handsets.


Asunto(s)
Neoplasias , Medicina de Precisión , Humanos , Medicina de Precisión/métodos , Genómica/métodos , Neoplasias/genética , Neoplasias/terapia , Bases del Conocimiento
6.
Am J Pathol ; 192(4): 671-686, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35063405

RESUMEN

The altered regulatory status of long noncoding RNA (lncRNA), miRNA, and mRNA and their interactions play critical roles in tumor proliferation, metastasis, and progression, which ultimately influence cancer prognosis. However, there are limited studies of comprehensive identification of prognostic biomarkers from combined data sets of the three RNA types in the highly metastatic clear cell renal cell carcinoma (ccRCC). The current study employed an integrative analysis framework of functional genomics approaches and machine learning methods to the lncRNA, miRNA, and mRNA data and identified 16 RNAs (3 lncRNAs, 6 miRNAs, and 7 mRNAs) of prognostic value, with 9 of them novel. A 16 RNA-based score was established for prognosis prediction of ccRCC with significance (P < 0.0001). The area under the curve for the score model was 0.868 to 0.870 in the training cohort and 0.714 to 0.778 in the validation cohort. Construction of the lncRNA-miRNA-mRNA interaction network showed that the downstream mRNAs and upstream lncRNAs in the network initiated from the miRNA or lncRNA markers exhibit significant enrichment in functional classifications associated with cancer metastasis, proliferation, progression, or prognosis. The functional analysis provided clear support for the role of the RNA biomarkers in predicting cancer prognosis. This study provides promising biomarkers for predicting prognosis of ccRCC using multidimensional RNA data, and these findings are expected to facilitate potential clinical applications of the biomarkers.


Asunto(s)
Carcinoma de Células Renales , MicroARNs , ARN Largo no Codificante , Biomarcadores de Tumor/genética , Biomarcadores de Tumor/metabolismo , Carcinoma de Células Renales/diagnóstico , Carcinoma de Células Renales/genética , Carcinoma de Células Renales/metabolismo , Femenino , Regulación Neoplásica de la Expresión Génica , Redes Reguladoras de Genes , Humanos , Estimación de Kaplan-Meier , Masculino , MicroARNs/genética , MicroARNs/metabolismo , Pronóstico , ARN Largo no Codificante/genética , ARN Largo no Codificante/metabolismo , ARN Mensajero/genética , ARN Mensajero/metabolismo
7.
Rev Cardiovasc Med ; 24(1): 11, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-39076857

RESUMEN

Background: As an emerging arrhythmia monitor, ambulatory smartwatch electrocardiogram (ECG) provides an option for home-based monitoring of delayed new-onset arrhythmic events after transcatheter aortic valve replacement (TAVR). We aimed to validate the diagnostic efficacy of a consumer smartwatch ECG in TAVR recipients, while further explore the occurrence rate of both tachy- and brady-arrhythmia for 30 days after discharge to support risk management. Methods: Consecutive TAVR recipients from February 26th, 2021 to December 13th, 2021 were enrolled prospectively, receiving simultaneous 24-hour Holter and 12-lead ECG compared with smartwatch ECG during hospitalization and daily smartwatch ECG collection for 30 days after discharge. Results: Among 110 patients, the efficacy of smartwatch ECG presented sensitivity and specificity in diagnosing atrial fibrillation (AF) as 1.00 and 0.97, left bundle branch block (LBBB) as 0.61 and 0.88, and right bundle branch block (RBBB) as 0.60 and 0.97, respectively, compared with 24-hour Holter; presented sensitivity and specificity in diagnosing AF as 0.88 and 1.00, LBBB as 0.90 and 0.96, and RBBB as 0.83 and 0.94, respectively, compared with 12-lead ECG. At 30-day follow-up, new-onset arrhythmia included new-onset severe conduction disturbance (SCD) (23.6%), new-onset AF (21.8%), new-onset permanent LBBB (14.5%) and new-onset permanent RBBB (0.9%); 69.2% (36/52) of early new-onset LBBB recovered at 30-day follow-up. Conclusions: The diagnostic efficacy of consumer smartwatch ECG in arrhythmic events among TAVR population was acceptable, which provided a recommendable option for home-based management. Clinical Trial Registration: "Continuously ambulatory rhythm monitoring and predictors of electrocardio-related adverse events in 30 days after transcatheter aortic valve replacement"; Identifier: ChiCTR2000041244; http://www.chictr.org.cn/showproj.aspx?proj=66324.

8.
Curr Microbiol ; 80(2): 58, 2023 Jan 02.
Artículo en Inglés | MEDLINE | ID: mdl-36588112

RESUMEN

Nitrogen is an important factor affecting crop yield, but excessive use of chemical nitrogen fertilizer has caused decline in nitrogen utilization and soil and water pollution. Reducing the utilization of chemical nitrogen fertilizers by biological nitrogen fixation (BNF) is feasible for green production of crops. However, there are few reports on how to have more ammonium produced by nitrogen-fixing bacteria (NFB) flow outside the cell. In the present study, the amtB gene encoding an ammonium transporter (AmtB) in the genome of NFB strain Kosakonia radicincitans GXGL-4A was deleted and the △amtB mutant was characterized. The results showed that deletion of the amtB gene had no influence on the growth of bacterial cells. The extracellular ammonium nitrogen (NH4+) content of the △amtB mutant under nitrogen-free culture conditions was significantly higher than that of the wild-type strain GXGL-4A (WT-GXGL-4A), suggesting disruption of NH4+ transport. Meanwhile, the plant growth-promoting effect in cucumber seedlings was visualized after fertilization using cells of the △amtB mutant. NFB fertilization continuously increased the cucumber rhizosphere soil pH. The nitrate nitrogen (NO3-) content in soil in the △amtB treatment group was significantly higher than that in the WT-GXGL-4A treatment group in the short term but there was no difference in soil NH4+ contents between groups. Soil enzymatic activities varied during a 45-day assessment period, indicating that △amtB fertilization influenced soil nitrogen cycling in the cucumber rhizosphere. The results will provide a solid foundation for developing the NFB GXGL-4A into an efficient biofertilizer agent.


Asunto(s)
Compuestos de Amonio , Cucumis sativus , Bacterias Fijadoras de Nitrógeno , Plantones , Nitrógeno/metabolismo , Bacterias/metabolismo , Suelo/química , Proteínas de Transporte de Membrana , Fertilizantes/análisis
9.
Acta Radiol ; 64(3): 898-906, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35619546

RESUMEN

BACKGROUND: Colorectal cancer is the most common cause of cancer-related death worldwide. Magnetic resonance imaging (MRI) has become a promising alternative method for staging the cancer. PURPOSE: To evaluate parameters of intravoxel incoherent motion (IVIM) and their relationships with clinical-pathologic factors in rectal cancers. MATERIAL AND METHODS: A total of 51 patients with histopathologically proven rectal cancer who underwent preoperative pelvic MRI were prospectively enrolled. Parameters (ADC, D, D*, and f) derived from IVIM-diffusion-weighted imaging (DWI) were independently measured by two radiologists. Student's t-test, receiver operating characteristic curves, and Spearman correlation were used for statistical analysis. RESULTS: ADC, D, and D* were significantly higher in pT1-2 tumors than in pT3-4 tumors (1.108 ± 0.233 vs. 0.950 ± 0.176, 0.796 ± 0.199 vs. 0.684 ± 0.114, 0.013 ± 0.005 vs. 0.008 ± 0.003, respectively; P < 0.05). D* exhibited a strong correlation with the tumor stage (r = -0.675, P < 0.001). In poorly differentiated cluster (PDC) grading, ADC, D*, and f were significantly lower in high-grade tumors than in low-grade tumors (0.905 ± 0.148 vs. 1.064 ± 0.200, 0.008 ± 0.002 vs. 0.011 ± 0.005, and 0.252 ± 0.032 vs. 0.348 ± 0.058, respectively; P < 0.05). The f value exhibited a significantly strong correlation with the PDC grades (r = -0.842, P < 0.001), and higher sensitivity and specificity (95.2% and 75.9%) than those shown by the ADC, D, and D* values. CONCLUSION: IVIM parameters, especially f, demonstrated a strong correlation with histologic grades and showed a better performance in differentiating between high- and low-grade rectal cancers. These parameters would be helpful in predicting tumor aggressiveness and prognosis.


Asunto(s)
Neoplasias del Recto , Humanos , Pronóstico , Perfusión , Movimiento (Física) , Neoplasias del Recto/diagnóstico por imagen , Neoplasias del Recto/patología , Imagen de Difusión por Resonancia Magnética/métodos
10.
BMC Musculoskelet Disord ; 24(1): 779, 2023 Oct 02.
Artículo en Inglés | MEDLINE | ID: mdl-37784065

RESUMEN

BACKGROUND: This study aimed to determine the prognostic outcome of hip joint replacement after resection of proximal femoral tumors by reviewing original studies. METHODS: Two researchers independently searched PubMed, Embase, Cochrane Library, and Web of Science databases from inception to July 17, 2022. Then, the literature was screened by inclusion criteria. The basic information, primary outcomes, and secondary outcomes were extracted for weighted combined analysis. The quality of the included literature was evaluated using the Newcastle-Ottawa scale. RESULTS: Twenty-four retrospective cohort studies comprising 2081 patients were included. The limb salvage rate was 98%. The survival rates at 1, 2, 3, 4, and 5 years were 80, 72, 65, 64, and 55% for patients with primary tumors and the rate at 1, 2, 3, 4, and 5 years were 44, 25, 17, 14, and 11% for patients with bone metastases, respectively. CONCLUSION: As chemotherapy and radiotherapy treatment progressed, joint reconstruction after proximal femoral tumor resection improved patients' function and quality of life.


Asunto(s)
Neoplasias Femorales , Prótesis Articulares , Humanos , Neoplasias Femorales/cirugía , Neoplasias Femorales/patología , Estudios Retrospectivos , Calidad de Vida , Fémur/patología , Resultado del Tratamiento
11.
Phytother Res ; 37(9): 3898-3912, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37132081

RESUMEN

Liver fibrosis is a key global health care burden. Sclareol, isolated from Salvia sclarea, possesses various biological activities. Its effect on liver fibrosis remains unknown. This study was proposed to evaluate the antifibrotic activity of sclareol (SCL) and explore its underlying mechanisms. Stimulated hepatic stellate cells served as an in vitro liver fibrosis model. The expression of fibrotic markers was assessed by western blot and real-time PCR. Two classical animal models, bile duct-ligated rats and carbon tetrachloride-treated mice, were utilized for the in vivo experiments. The liver function and fibrosis degree were determined by serum biochemical and histopathological analyses. VEGFR2 SUMOylation was analyzed using coimmunoprecipitation assay. Our results indicated that SCL treatment restricted the profibrotic propensity of activated HSCs. In fibrotic rodents, SCL administration alleviated hepatic injury and reduced collagen accumulation. Mechanistic studies indicated that SCL downregulated the protein level of SENP1 and enhanced VEGFR2 SUMOylation in LX-2 cells, which affected its intracellular trafficking. Blockade of the interaction between VEGFR2 and STAT3 was observed, resulting in the suppression of downstream STAT3 phosphorylation. Our findings demonstrated that SCL has therapeutic efficacy against liver fibrosis through mediating VEGFR2 SUMOylation, suggesting that SCL may be a potential candidate compound for its treatment.


Asunto(s)
Cirrosis Hepática , Sumoilación , Ratas , Ratones , Animales , Cirrosis Hepática/tratamiento farmacológico , Hígado , Transducción de Señal , Fibrosis , Células Estrelladas Hepáticas
12.
J Stroke Cerebrovasc Dis ; 32(8): 107206, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37276787

RESUMEN

BACKGROUND AND AIMS: The validity of high uric acid levels as an independent cause of stroke remains controversial, and the association between its low concentration and stroke is unclear. This study determines how different serum uric acid (SUA) levels are associated with stroke risk. METHODS: This cross-sectional study used continuous National Health and Nutrition Examination Survey data in the United States during 1999-2020. The SUA levels of 6.0, 6.8, and 9.0 mg/dL were all considered as cut-off points. Restricted cubic spline interpolation and logistic regression models were used to evaluate the different associations. Subgroup analyses and sensitivity analyses were conducted to evaluate the influence of multiple factors on the outcomes. RESULTS: The study included 23,413 participants aged ≥ 20 years. A J-shaped curve existed between SUA and stroke risk, and the risk of stroke was positively correlated with SUA levels in the overall population. Subgroup analysis of all adults in the SUA 6.8-9.0 mg/dL group showed that stroke risk for non-Hispanic white, obese, ex-smoker, and heavy drinking groups was increased, but for the other Hispanic group was reduced. In the SUA < 6.0 mg/dL group, stroke risk for ex-smoker, heavy drinkers, and no chronic kidney disease groups was increased. CONCLUSION: Our findings indicate a J-shaped relationship between SUA levels and stroke risk. Low and high SUA levels increased stroke risk for different populations, except in the other Hispanic population. Early SUA management is highly significant for stroke prevention in high-risk populations.


Asunto(s)
Intoxicación Alcohólica , Accidente Cerebrovascular , Humanos , Adulto , Estudios Transversales , Encuestas Nutricionales , Ácido Úrico , Accidente Cerebrovascular/diagnóstico , Accidente Cerebrovascular/epidemiología
13.
Int Nurs Rev ; 70(2): 204-210, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35962469

RESUMEN

AIM: To examine the mediating effect of basic psychological needs on the relationship between perceived organizational support and work engagement among nurses. BACKGROUND: The satisfaction of basic psychological needs is crucial for breeding and sustaining individuals' intrinsic motivation. Little is known about the underlying motivational mechanisms that explain the relationship among perceived organizational support, basic psychological needs, and work engagement in a nursing context. METHODS: This was a cross-sectional online survey. A sample of 858 nurses from 12 hospitals was surveyed on their perceived organizational support, basic psychological needs, and work engagement. Structural equation models and bootstrapping methods were used to examine the hypotheses. STROBE reporting guidelines were utilized. RESULTS: Perceived organizational support was positively associated with basic psychological needs and work engagement. Basic psychological needs were positively associated with work engagement. Basic psychological needs mediated the relationship between perceived organizational and work engagement. CONCLUSION: Perceived organizational support may enhance work engagement by fulfilling the basic psychological needs of nurses. IMPLICATIONS FOR NURSING AND NURSING POLICY: Basic psychological needs deserve more attention in nursing organizations. Managers should seek optimal strategies to fulfill nurses' needs for autonomy, competence, and relatedness to stimulate their intrinsic motivation to enhance work engagement.


Asunto(s)
Personal de Enfermería en Hospital , Compromiso Laboral , Humanos , Estudios Transversales , Satisfacción en el Trabajo , Encuestas y Cuestionarios , Lugar de Trabajo/psicología , Personal de Enfermería en Hospital/psicología
14.
BMC Bioinformatics ; 23(1): 19, 2022 Jan 06.
Artículo en Inglés | MEDLINE | ID: mdl-34991447

RESUMEN

BACKGROUND: The gene-specific sweep is a selection process where an advantageous mutation along with the nearby neutral sites in a gene region increases the frequency in the population. It has been demonstrated to play important roles in ecological differentiation or phenotypic divergence in microbial populations. Therefore, identifying gene-specific sweeps in microorganisms will not only provide insights into the evolutionary mechanisms, but also unravel potential genetic markers associated with biological phenotypes. However, current methods were mainly developed for detecting selective sweeps in eukaryotic data of sparse genotypes and are not readily applicable to prokaryotic data. Furthermore, some challenges have not been sufficiently addressed by the methods, such as the low spatial resolution of sweep regions and lack of consideration of the spatial distribution of mutations. RESULTS: We proposed a novel gene-centric and spatial-aware approach for identifying gene-specific sweeps in prokaryotes and implemented it in a python tool SweepCluster. Our method searches for gene regions with a high level of spatial clustering of pre-selected polymorphisms in genotype datasets assuming a null distribution model of neutral selection. The pre-selection of polymorphisms is based on their genetic signatures, such as elevated population subdivision, excessive linkage disequilibrium, or significant phenotype association. Performance evaluation using simulation data showed that the sensitivity and specificity of the clustering algorithm in SweepCluster is above 90%. The application of SweepCluster in two real datasets from the bacteria Streptococcus pyogenes and Streptococcus suis showed that the impact of pre-selection was dramatic and significantly reduced the uninformative signals. We validated our method using the genotype data from Vibrio cyclitrophicus, the only available dataset of gene-specific sweeps in bacteria, and obtained a concordance rate of 78%. We noted that the concordance rate could be underestimated due to distinct reference genomes and clustering strategies. The application to the human genotype datasets showed that SweepCluster is also applicable to eukaryotic data and is able to recover 80% of a catalog of known sweep regions. CONCLUSION: SweepCluster is applicable to a broad category of datasets. It will be valuable for detecting gene-specific sweeps in diverse genotypic data and provide novel insights on adaptive evolution.


Asunto(s)
Polimorfismo Genético , Selección Genética , Análisis por Conglomerados , Genética de Población , Genotipo , Humanos , Desequilibrio de Ligamiento , Modelos Genéticos
15.
BMC Cancer ; 22(1): 116, 2022 Jan 28.
Artículo en Inglés | MEDLINE | ID: mdl-35090421

RESUMEN

BACKGROUND: Sodium glucose transporters (SGLTs) play vital roles in glucose uptake in many solid cancers, including pancreatic cancer (PC). However, their expression profile in pancreatic cancer and correlation with prognosis are not clear. Thus, we aimed to analyse the expression profile and prognostic significance of SGLT-1 and SGLT-2 in PC. METHODS: Eighty-eight patients with pancreatic ductal adenocarcinoma (PDAC) undergoing surgery in Huashan Hospital, Fudan University, from July 2017 to June 2020 were enrolled in the study. Specimens for immunohistochemistry were obtained through surgical resection. Bioinformatics analysis was performed based on the Gene Expression Omnibus (GEO), Oncomine and The Cancer Genome Atlas (TCGA) databases. The statistics were calculated using IBM SPSS Statistics, version 20 and R 4.1.1. P values lower than 0.05 were considered to indicate statistical significance. RESULTS: SGLT-1 but not SGLT-2 was significantly overexpressed in PDAC. Survival analysis showed that the median overall survival (OS) and progression-free survival (PFS) of patients with high SGLT-1 expression were significantly longer than that of patients with low SGLT-1 expression. Cox regression indicated that high SGLT-1 expression was an independent predictor for a better prognosis, while residual tumour status (R1 and R2) was an independent risk factor for a poor prognosis. Finally, PDZK1-interacting protein 1 (PDZK1IP1), a protein participating in the generation of reactive oxygen species, was overexpressed in PDAC and its expression was significantly correlated with SGLT-1. CONCLUSIONS: SGLT-1 but not SGLT-2 was overexpressed in PDAC, and the overexpression of SGLT-1 could be a predictor of a better prognosis. Residual tumour status (R1 and R2) was a risk factor for poor prognosis and disease progression.


Asunto(s)
Carcinoma Ductal Pancreático/genética , Carcinoma Ductal Pancreático/mortalidad , Neoplasias Pancreáticas/genética , Neoplasias Pancreáticas/mortalidad , Transportador 1 de Sodio-Glucosa/metabolismo , Transportador 2 de Sodio-Glucosa/metabolismo , Anciano , Biomarcadores de Tumor/genética , Femenino , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , Pronóstico , Modelos de Riesgos Proporcionales , Análisis de Supervivencia
16.
J Clin Gastroenterol ; 56(5): 393-400, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-33973961

RESUMEN

BACKGROUND: Lyon Consensus altered the previous understanding of endoscopic gastroesophageal reflux disease (GERD) and pointed out that only high-grade reflux esophagitis (RE) [Los Angeles (LA) grades C or D], Barrett's esophagus or peptic stricturing were considered confirmatory evidence for GERD but low-grade RE (LA grades A or B) was regarded as suspected GERD. We aimed to summarize the possible relationship between gastroesophageal flap valve (GEFV) and endoscopic GERD according to Lyon Consensus using meta-analysis of studies done in Asia. MATERIALS AND METHODS: Comprehensive searches of PubMed, WOS, Embase, SinoMed, and CNKI databases were completed to identify eligible studies published before September 22, 2019. A total of 237 articles have been reviewed and 2 reviewers independently evaluated the eligibility for inclusion, extracted, and analyzed the statistical data. The pooled risk ratios (RRs) with 95% confidence intervals (CI) were measured for the association. Random-effects models were used when observing significant heterogeneity. RESULTS: A total of 15 studies were included and we found that abnormal GEFV (III and IV) could be associated with RE and the correlation become stronger as the grade increases (RE-A vs. controls-RR: 2.186, 95% CI: 1.560-3.064, P<0.001; RE-B vs. RE-A-RR: 1.268, 95% CI: 1.128-1.425, P<0.001; RE-C vs. RE-B-RR: 1.181, 95% CI: 1.000-1.395, P=0.049; RE-D vs. RE-C-RR: 1.471, 95% CI: 1.151-1.879, P=0.002). Both suspected GERD (RR: 2.400, 95% CI: 1.761-3.271, P<0.001) and endoscopic GERD (RR: 1.388, 95% CI: 1.127-1.711, P=0.002) were related to abnormal GEFV. CONCLUSION: Abnormal GEFV could provide useful information for reflux conditions, but it could not distinguish confirmatory GERD from low-grade RE under the upper endoscopy.


Asunto(s)
Esófago de Barrett , Esofagitis Péptica , Reflujo Gastroesofágico , Pueblo Asiatico , Esofagitis Péptica/diagnóstico , Esofagitis Péptica/etiología , Unión Esofagogástrica , Reflujo Gastroesofágico/diagnóstico , Humanos
17.
Value Health ; 25(2): 302-317, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35094803

RESUMEN

OBJECTIVES: This study aimed to investigate how value is defined and measured in existing value assessment frameworks (VAFs) in healthcare. METHODS: We searched PubMed, Embase, the Cochrane Library, and Centre for Reviews and Dissemination from 2008 to 2019. We also performed backward citation chaining of included studies and previously published systematic reviews. Studies reporting the development of a VAF in healthcare were included. For each included framework, we extracted and compared the context, target users, intended use, methods used to identify value attributes, description of the attributes, and attribute scoring approaches. RESULTS: Of the 8151 articles screened, 57 VAFs were included. The value attributes included in 55 VAFs were grouped into 9 categories: health benefits (n = 53, 96%), affordability (n = 45, 82%), societal impact (n = 42, 76%), burden of disease (n = 36, 65%), quality of evidence (n = 32, 58%), cost-effectiveness (n = 31, 56%), ethics and equity (n = 27, 49%), unmet needs (n = 21, 38%), and innovation (n = 15, 27%). The remaining 2 VAFs used broad attributes or user-defined attributes. Literature review was the main approach to identify value attributes in 36 VAFs. Patient or public was engaged through the development of only 11 VAFs. Weighting has been used to score 29 VAFs, of which 19 used the methods of multicriteria decision analysis. CONCLUSIONS: There are substantial variations in defining and measuring value. A noticeable weakness of existing VAFs is that patient or public engagement was generally very limited or missing in framework development process. Existing VAFs tend to aggregate multiple value attributes into a single index for decision making.


Asunto(s)
Atención a la Salud/economía , Evaluación de Resultado en la Atención de Salud/economía , Análisis Costo-Beneficio , Toma de Decisiones , Política de Salud , Humanos , Años de Vida Ajustados por Calidad de Vida , Evaluación de la Tecnología Biomédica
18.
Bioorg Chem ; 127: 105971, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35749855

RESUMEN

Liver fibrosis is an important process in chronic liver disease and is strongly related to poor prognosis. Dehydromevalonolactone (C8) is a natural product isolated from a fungus of Fusarium sp. CPCC 401218, and its pharmacological activity has never been reported before. In this study, the potential of C8 as an anti-hepatic fibrosis agent was investigated. In human hepatic stellate cell (HSC) line LX-2, C8 suppressed the increased expression of COL1A1 and α-SMA induced by TGFß1, which indicated that C8 could repress the activation of HSCs. In bile duct ligated rats, C8 administration (100 mg/kg, i.p.) markedly attenuated liver injury, fibrosis, and inflammation, and suppressed the expression of the macrophage surface marker F4/80. In terms of mechanism, C8 treatment blocked the activation of the NLRP3 inflammasome, which was stimulated by LPS and nigericin in bone marrow-derived macrophages (BMDMs) and companied by the release of active IL-1ß. In addition, the activation of LX-2 cells induced by IL-1ß released from BMDMs was also inhibited after C8 administration, which indicated that C8 repressed HSCs activation by inhibiting the activation of NLRP3 inflammasome in macrophages. Furthermore, C8 exhibited the effects of anti-fibrosis and inhibiting the expression of NLRP3 inflammasome in non-alcoholic steatohepatitis (NASH) mice. Finally, C8 can be commendably absorbed in vivo and was safe for mice at the concentration of 1000 mg/kg (p.o.). In summary, our study reveals that C8 ameliorates HSCs activation and liver fibrosis in cholestasis rats and NASH mice by inhibiting NLRP3 inflammasome in macrophages, and C8 might be a safe and effective candidate for the treatment of liver fibrosis.


Asunto(s)
Inflamasomas , Ácido Mevalónico/análogos & derivados , Enfermedad del Hígado Graso no Alcohólico , Animales , Fibrosis , Humanos , Inflamasomas/metabolismo , Inflamación/metabolismo , Hígado/metabolismo , Cirrosis Hepática/inducido químicamente , Cirrosis Hepática/tratamiento farmacológico , Cirrosis Hepática/metabolismo , Ácido Mevalónico/análisis , Ácido Mevalónico/farmacología , Ácido Mevalónico/uso terapéutico , Ratones , Ratones Endogámicos C57BL , Proteína con Dominio Pirina 3 de la Familia NLR/metabolismo , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Ratas
19.
Endocr Pract ; 28(11): 1178-1186, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-35850449

RESUMEN

OBJECTIVE: The purpose of this study was to conduct a systematic review and meta-analysis evaluating the role of thyroid hormone therapy in patients with heart failure and low-triiodothyronine syndrome. METHODS: The electronic databases PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, China Science and Technology Journal Database, Wanfang Database, and China Biology Medicine disc were systematically searched to identify eligible studies published before November 27, 2021. The mean difference was pooled for randomized controlled trials using a random-effects model. RESULTS: The meta-analysis showed that thyroid hormone treatment improved the left ventricular ejection fraction (weighted mean difference [WMD] 5.61, 95% confidence interval [CI]: 4.38 to 6.85, I2 = 63.12%, P < 0.01). The cardiac output improved with thyroid hormone therapy (WMD 0.65, 95% CI: 0.42 to 0.89, I2 = 84.28%, P < 0.01). The early-to-late diastolic transmitral flow velocity in the thyroid hormone group was also improved compared to the control group (WMD 0.29, 95% CI: 0.15 to 0.42, I2 = 95.08%, P < 0.01). The left ventricular diastolic dysfunction was decreased with thyroid hormone treatment (WMD -5.17, 95% CI: -7.47 to -2.88, I2 = 90.18%, P < 0.01). The brain natriuretic peptide decreased with thyroid hormone treatment (standardized mean difference -1.49, 95% CI: -2.15 to -0.84, I2 = 90.18%, P < 0.01). Noradrenaline decreased with thyroid hormone therapy (WMD -349.86, 95% CI: -401.05 to -298.67, I2 = 0%, P < 0.01). Free triiodothyronine increased with thyroid hormone treatment (standardized mean difference 2.18, 95% CI: 0.75 to 2.60, I2 = 98.20%, P < 0.01). CONCLUSION: This meta-analysis showed that thyroid hormone replacement therapy was effective in patients with heart failure and low-triiodothyronine syndrome.


Asunto(s)
Insuficiencia Cardíaca , Triyodotironina , Humanos , Volumen Sistólico , Triyodotironina/uso terapéutico , Función Ventricular Izquierda , Glándula Tiroides , Ensayos Clínicos Controlados Aleatorios como Asunto , Insuficiencia Cardíaca/tratamiento farmacológico , Terapia de Reemplazo de Hormonas , Hormonas Tiroideas/uso terapéutico
20.
Curr Microbiol ; 79(12): 369, 2022 Oct 17.
Artículo en Inglés | MEDLINE | ID: mdl-36253498

RESUMEN

Kosakonia radicincitans GXGL-4A, a gram-negative nitrogen-fixing (NF) bacterial strain is coated with a thick capsulatus on the surface of cell wall, which becomes a physical barrier for exogenous DNA to enter the cell, so the operation of genetic transformation is difficult. In this study, an optimized Tn5 transposon mutagenesis system was established by using a high osmotic HO-1 medium combined with the electroporation transformation. Eventually, a mutant library containing a total of 1633 Tn5 insertional mutants were established. Of these mutants, the mutants M81 and M107 were found to have an enhanced capability to synthesize siderophore through the CAS agar plate assay and the spectrophotometric determination. The bacterial cells of two mutants were applied in cucumber growth-promoting experiment. Cucumber seedlings treated with M81 and M107 cells had a significant increase in biomass including seedling height, seedling fresh weight, root fresh weight, and root length. The whole genome sequencing of the mutants M81 and M107 showed that the integration sites of Tn5 transposon element were located in MmyB-like helix-turn-helix transcription regulator (locus tag: A3780_19720, trX) and aminomethyltransferase-encoding genes (locus tag: A3780_01680, amt) in the genome of GXGL-4A, respectively. The ability of siderophore synthesis of the target mutants was improved by Tn5 insertion mutagenesis, and the mutants obtained showed a good plant growth-promoting effect when applied to the cucumber seedlings. The results suggest that the identified functional genes regulates the biosynthesis of siderophore in azotobacter GXGL-4A, and the specific mechanism needs to be further investigated.


Asunto(s)
Cucumis sativus , Sideróforos , Agar , Aminometiltransferasa , Elementos Transponibles de ADN , Mutagénesis Insercional , Nitrógeno , Factores de Transcripción
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