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1.
Front Med ; 2020 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-32240462

RESUMO

Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has posed a significant threat to global health. It caused a total of 80 868 confirmed cases and 3101 deaths in Chinese mainland until March 8, 2020. This novel virus spread mainly through respiratory droplets and close contact. As disease progressed, a series of complications tend to develop, especially in critically ill patients. Pathological findings showed representative features of acute respiratory distress syndrome and involvement of multiple organs. Apart from supportive care, no specific treatment has been established for COVID-19. The efficacy of some promising antivirals, convalescent plasma transfusion, and tocilizumab needs to be investigated by ongoing clinical trials.

2.
J Periodontal Res ; 2020 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-32240552

RESUMO

BACKGROUND AND OBJECTIVE: Accumulating findings revealed that long noncoding RNAs (lncRNAs) are crucial regulator molecules in the progression of periodontitis. This study aimed to investigate the biological roles and mechanisms of lncRNA-01126 in the progression of periodontitis. MATERIALS AND METHODS: RT-qPCR was used to detect the levels of lncRNA-01126 in gingival tissues and human periodontal ligament cells (hPDLCs). Cell transfection experiments were performed to knock down or overexpress the level of lncRNA-01126 in hPDLCs. Cell Counting Kit-8, wound-healing assay, transwell assay, and flow cytometric analysis were used to evaluate the function of lncRNA-01126 in the progression of periodontitis. Finally, the signaling pathway was assessed by western blot. RESULTS: LncRNA microarray discovered that lncRNA-01126 was the most significantly increased lncRNA in periodontitis patients. LncRNA-01126 markedly increased in the gingival tissues of periodontitis mice and in the hPDLCs treated with lipopolysaccharide of Porphyromonas Gingivalis (LPS-PG). Furthermore, in vitro experiments showed that lncRNA-01126 dramatically suppressed the migration of hPDLCs through MEK/ERK signaling pathway. CONCLUSION: LncRNA-01126 plays a crucial role in inhibiting the migration of hPDLCs through MEK/ERK signaling pathway.

3.
J Environ Manage ; 261: 110222, 2020 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-32148291

RESUMO

Nearshore ecosystems are transitional zones, and they may harbor a diverse microbial community capable of degrading azo dyes under extreme environmental conditions. In this study, thirteen bacterial strains capable of degrading eight azo dyes were isolated in nearshore environments and characterized using high throughput 16 S rRNA sequencing. The results of this study demonstrate that the biodegradability of azo dyes was influenced by their chemical structure and position of functional groups as well as the type of bacteria. The decolorization rate of Methyl Orange (95%) was double that of the heavier and sterically hindered Reactive Yellow 84 (<40%). Shewanella indica strain ST2, Oceanimonas smirnovii strain ST3, Enterococcus faecalis strain ST5, and Clostridium bufermentans strain ST12 demonstrated potential application in industrial effluent treatment as they were tolerant to a wide range of environmental parameters (pH: 5-9, NaCl: 0-70 g L-1, azo dye concentration: 100-2000 mg L-1) including exposure to metals. Analysis of the transformation products using GC-MS revealed that different bacterial strains may have different biotransformation pathways. This study provides critical insight on the in-situ biotransformation potential of azo dyes in marine environments.


Assuntos
Corantes , Indústria Têxtil , Compostos Azo , Biodegradação Ambiental , Ecossistema
4.
Biomed Res Int ; 2020: 6320154, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32185212

RESUMO

Purpose: The aim of this current review was to confirm the efficacy of intra-articular steroid therapy (IAST) for patients with hip osteoarthritis (OA) and discuss the duration and influential factors of IAST. Methods: Online databases (Medline, EMBASE, and Web of Science) were searched from inception to May 2019. Both randomized controlled trials (RCTs) and noncontrolled trials assessing the efficacy of hip IAST on pain were included. Common demographics data were extracted using a standardized form. Quality was assessed on the basis of Oxford Centre for Evidence-Based Medicine 2011 Levels of Evidence. Results: 12 trials met the inclusion criteria. According to data from individual trials, IAST had significant efficacy on hip OA in both immediate and delay pain reduction, which persisted up to 12 weeks after IAST. The influences of the baseline severity of hip OA or synovitis and injection dose or volume on the clinical outcome of IAST were still controversial. The IAST appeared to be well tolerant by most of the participants. Conclusion: IAST was proved to be an efficacious therapy in both immediate and delay pain reduction for hip OA patients within 12 weeks. The longer follow-up data of efficacy and safety and potentially influential factors are still unclear and needed further confirmation.

5.
Sensors (Basel) ; 20(6)2020 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-32178312

RESUMO

Citri Reticulatae Pericarpium (CRP), has been used in China for hundreds of years as a functional food and medicine. However, some short-age CRPs are disguised as long-age CRPs by unscrupulous businessmen in order to obtain higher profits. In this paper, a rapid and nondestructive method for the classification of different-age CRPs was established using portable near infrared spectroscopy (NIRS) in diffuse reflectance mode combination with appropriate chemometric methods. The spectra of outer skin and inner capsule of CRPs at different storage ages were obtained directly without destroying the samples. Principal component analysis (PCA) with single and combined spectral pretreatment methods was used for the classification of different-age CRPs. Furthermore, the data were pretreated with the PCA method, and Fisher linear discriminant analysis (FLD) with optimized pretreatment methods was discussed for improving the accuracy of classification. Data pretreatment methods can be used to eliminate the noise and background interference. The classification accuracy of inner capsule is better than that of outer skin data. Furthermore, the best results with 100% prediction accuracy can be obtained with FLD method, even without pretreatment.

6.
J Mol Neurosci ; 2020 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-32219663

RESUMO

Post-stroke cognitive impairment (PSCI), as one of the major complications after stroke, refers to a series of syndromes from mild cognitive impairment to dementia caused by stroke. Stroke has been reported to increase the risk of cognitive impairment by at least five to eight times. The assessment of PSCI usually relies on neuropsychological tests, but the results of these tests are subjective and inaccurate, and can be insufficient for the diagnosis and prognosis of PSCI. In recent years, an increasing number studies have indicated that changes in the expression of biomarkers such as C-reactive protein (CRP), interleukin 6 (IL-6) and IL-10 in blood, urine and other body fluids are associated with cognitive decline after stroke. Therefore, the detection of biomarkers in circulating blood serum, plasma and cerebrospinal fluid (CSF) may improve the accuracy of diagnosis and prognosis in PSCI. This review aims to summarize the studies on potential molecular biomarkers of PSCI.

7.
Clin Chim Acta ; 506: 154-159, 2020 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-32199784

RESUMO

BACKGROUND: Anti-Müllerian hormone (AMH) is used for evaluating gonadal development and testicular function. We aimed to establish AMH reference intervals and to determine the correlations between AMH level and age, body mass index (BMI), and follicle stimulating hormone (FSH), luteinizing hormone (LH), and total testosterone (TT) levels in healthy Chinese boys. METHODS: Serum AMH levels of 2,009 healthy boys (age, 0-14 years), recruited between October 2017 and April 2019, were determined using the Beckman Access 2 automated chemiluminescence immunoassay. Single-year-specific median, mean, and standard deviation (SD) of AMH and effects of age, BMI, FSH, LH, and TT on the AMH level were analyzed. RESULTS: The median and mean ± SD values of AMH increased slightly after birth. Serum AMH values decreased sharply at 2 years of age and were 6-7% of the birth level at 12 years, after which they remained low. Age-specific AMH reference intervals were established. Significant negative correlations were observed between AMH level and age (r = -0.75, P < 0.001); serum AMH levels were moderately negatively correlated with BMI (r = -0.35, P < 0.001), FSH (r = -0.37, P < 0.001), and TT (r = -0.45, P < 0.001) levels; and correlation with LH (r = -0.18, P < 0.001) was the weakest. In contrast, correlations between AMH and the LH/FSH ratio were not observed. CONCLUSION: We established single-year-specific reference intervals for AMH in Chinese boys. Our findings revealed the changes in AMH secretion during normal male growth, and may provide a basis for the clinical use of AMH.

8.
Chemosphere ; 252: 126467, 2020 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-32222518

RESUMO

Tris (1,3-dichloro-2-propyl)phosphate (TDCPP) is an organophosphate-based plasticizer and flame retardant with a high production volume. The ubiquitous distribution and persistence of TDCPP in aquatic environment have led to concerns over its possible toxic effects on aquatic organism. However, data regarding the toxicity of TDCPP on algae are limited, and the molecular mechanism remains largely unknown. Therefore, we determined the growth characteristics, physiological changes and transcriptome profiles of Phaeodactylum tricornutum in response to 4 mg L-1 TDCPP for 24 h. TDCPP caused morphological damage and growth inhibition with an EC50 value of 3.71 mg L-1 at 96 h. A decline in pigments and photosynthetic activity was observed, indicating the occurrence of photosynthesis inhibition. Although the activities of both glutathione peroxidase and glutathione reductase were stimulated, oxidative stress was not relieved in the algal cells, as evidenced by the elevated levels of reactive oxygen species and lipid peroxidation. Transcriptomic analyses revealed 3312 differentially expressed genes (DEGs), and photosynthesis was a key target, as genes related to this process were greatly altered under TDCPP stress. Moreover, some DEGs were also enriched in amino acid metabolism, nitrogen metabolism, nucleotide metabolism and lipid metabolism, implying that TDCPP-induced damage towards algae by various pathways. Additionally, several TFs related to stress signaling were differentially expressed, suggesting roles in the TDCPP stress response. The results will provide critical data to understand the ecological risks and toxic mechanism of OPFRs entering into marine habitat.

9.
Langmuir ; 36(12): 3057-3063, 2020 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-32160744

RESUMO

Microalgae biofilm-based culture systems have wide applications in environmental engineering and biotechnology. Biofilm structure is critical for the transport of nutrients, gas, and signaling molecules in a microalgal biofilm. This work aims to understand the influence of cell surface energy (SE) on the microalgal biofilm structure. Three microalgae species were used as model cells in the study: Chlorella sp., Nannochloris oculata, and Chlorella pyrenoidosa. First, by mediating biofilm culture conditions, we obtained Chlorella sp. cells with SEs of 40.4 ± 1.5, 44.7 ± 1.0, and 62. 7 ± 1.2 mJ/m2, N. oculata cells with SEs of 47.7 ± 0.5, 41.1 ± 1.0, and 62.6 ± 1.2 mJ/m2, and C. pyrenoidosa cells with SEs of 64.0 ± 0.6, 62.1 ± 0.7, and 62.8 ± 0.6 mJ/m2. Then, based on the characterizations of biofilm structures, we found that cell SE can significantly affect the microalgae biofilm structure. When the cell SEs ranged from 40 to 50 mJ/m2, the microalgae cells formed heterogeneous biofilms with a large number of open voids, and the biofilm porosity was higher than 20%. Alternatively, when the cell SEs ranged from 50 to 65 mJ/m2, the cells formed a flat, homogeneous biofilm with the porosity lower than 20%. Finally, the influencing mechanism of cell SE on biofilm structure was interpreted based on the thermodynamic theory via analyzing the co-adhesion energy between cells. The study has important implications in understanding factors that influence the biofilm structures.

10.
Theranostics ; 10(8): 3722-3736, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32206118

RESUMO

Rationale: Antitumor drug delivery faces multiple barriers that require consecutively achieving tumor targeting, selective cellular uptake and sufficient intracellular drug dosage. Methods: Herein, we designed smart nanoparticles (GPDC-MSNs) that can accumulate stepwise in tumor tissues, selectively enter cancer cells by responding to the acidic tumor extracellular environment, and achieve considerable drug release in the intracellular microenvironment. The GPDC-MSNs comprise the synthesized material galactosyl-conjugated PEO-PPO-PEO (Gal-P123) for hepatocellular carcinoma (HCC) targeting, the tumor extracellular pH-responsive lipid (2E)-4-(dioleostearin)-amino-4-carbonyl-2-butenonic (DC) for selective cellular internalization, and antitumor drug irinotecan (CPT-11)-loaded mesoporous silica nanoparticles (MSNs) for on-demand intracellular drug release. Results: GPDC-MSNs are negatively charged at pH 7.4 and promote active HCC targeting mediated by the asialoglycoprotein receptor. Upon reaching the weakly acidic tumor microenvironment, the nanoparticles undergo charge conversion to neutral, enhancing cellular internalization. Moreover, the encapsulated CPT-11 can be retained within GPDC-MSNs in the blood circulation but undergo intracellular burst release, which facilitates the apoptosis of tumor cells. GPDC-MSNs significantly increased HCC selectivity in vivo and exhibited up to 25 times higher accumulation in tumor tissue than in normal hepatic tissue, thus achieving superior antitumor efficacy and low systemic toxicity. Conclusion: This stepwise-responsive nanoparticle should serve as a valuable platform and promising strategy for HCC treatment.

12.
Sci Total Environ ; 714: 136731, 2020 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-32018959

RESUMO

Green logistics policies (GLP) are essential to the progress of green logistics, the promotion of green growth, and the fulfillment of sustainable development. However, as the uncertainty and ambiguity of factors that influence the implementation of GLP, it is urgent to explore and reveal the antecedents and functional mechanism of the effectiveness of GLP. This study adopts grounded theory method to conduct in-depth interviews, and concludes that five major factors, such as the perfection of GLP system, the green governance capacity of government, the level of perception of logistics enterprises on GLP, the level of social supervision, and the development level of logistics industry, which influence the effectiveness of GLP. And then presents the integrated model of antecedents of the effectiveness of GLP, revealing the influence path and internal mechanism of these influencing factors. It is of great significance to enhancing the effectiveness of GLP, upgrading green logistics, and achieving the green development.

13.
J Med Virol ; 2020 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-32043608

RESUMO

Hepatocellular carcinoma (HCC) accounts for 90% of cases of liver cancer and is one of the most common and lethal malignancies among all cancers. Current screening practices in high-risk populations using ultrasound and serological α-fetoprotein (AFP) have significantly reduced HCC mortality. However, considering the highly operative-dependent nature of ultrasound and dissatisfactory diagnostic performance of AFP, there is an unfulfilled need for a biomarker that can be used in HCC-related at-risk population screening. Here, sera from 322 patients, including 105 cases of chronic hepatitis (CH), 116 of liver cirrhosis (LC), and 101 of HCC, were collected. Two biomarkers, osteopontin (OPN) and dickkopf WNT signaling pathway inhibitor 1 (DKK1), were evaluated and compared with AFP alone and in combination. In our data, the serum OPN level increased significantly in HCC even in tumors of less than 2 cm. The area under the curve (AUC) reached 0.851, much higher than AFP and DKK1, with 79.21% sensitivity and 79.64% specificity at optimal cutoff in all of the samples. In AFP-negative samples, serum OPN also performed well with an AUC of 0.838. The combination of AFP and OPN improved diagnosis performance significantly when compared with AFP alone. However, the DKK1 level showed an increase in HCC only compared with the LC group. The AUC does not improve significantly when added into the binary logistic model. We conclude that OPN, but not DKK1, is a promising biomarker for HCC diagnosis.

14.
J Diabetes Res ; 2020: 2315607, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32090116

RESUMO

Background: Diabetic nephropathy (DN) is an important cause of end-stage renal disease and is recognized as a public health problem worldwide. However, there have been no nationwide surveys of DN prevalence in China. This study is aimed at estimating the pooled prevalence of DN among patients with type 2 diabetes in China. Methods: Published studies on the prevalence of DN among patients with type 2 diabetes published from January 1980 to October 2019 were systematically reviewed using PubMed, Embase, Google Scholar, Chinese Wanfang databases, and Chinese National Knowledge Infrastructure. The pooled prevalence of DN was estimated with the random effects model using R software. Prevalence estimates were also stratified by study design, methodological approach, and study population characteristics. Results: Thirty studies with a total of 79,364 participants were included in our study. The overall pooled prevalence of DN was 21.8% [95% confidence interval (CI): 18.5-25.4%]. Subgroup analysis found that the prevalence of DN varied significantly according to different DM and DN diagnostic criteria (P < 0.05); the pooling estimate was the highest in the west region of 41.3%, followed by that in the east region of China with 22.3%, northeast region with 20.7%, and central region with 15.6% (P < 0.05); the pooling estimate was the highest in the west region of 41.3%, followed by that in the east region of China with 22.3%, northeast region with 20.7%, and central region with 15.6% (P < 0.05); the pooling estimate was the highest in the west region of 41.3%, followed by that in the east region of China with 22.3%, northeast region with 20.7%, and central region with 15.6% (. Conclusions: The prevalence of DN is high in Chinese patients with type 2 diabetes and shows geographic and gender variation. These data indicate that national strategies aimed at primary and secondary prevention of DN and screening programs for DN are urgently needed to reduce the risk and burden of DN in China.

15.
J Pharm Sci ; 2020 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-32027921

RESUMO

The physical stability of antibody drug conjugates is dictated by the properties of the antibody, linker-drug, and conjugation site. Two linker-drugs were chosen that are different in terms of hydrophobicity and polar surface area to evaluate the effect of linker-drug properties on antibody-drug conjugate (ADC) behavior. Site-specific and non-site-specific conjugation was used to investigate the role of conjugation site in conformational and colloidal stability. Finally, 2 antibodies were selected to determine if the observed results were antibody-specific. The conformational stability is affected, with the highest degree of destabilization observed when conjugation results in the removal of interchain disulfide bonds. Although conformational destabilization occurred in the domain in which conjugation occurred and domains distinct from the conjugation site, no correlation could be drawn between linker-drug properties and conformational stability. Evaluation of aggregation by size exclusion HPLC confirmed a relationship between linker-drug hydrophobicity and aggregation propensity under thermal stress in all ADCs tested. The extent of aggregation was far greater in the conjugates generated with a more hydrophobic antibody, illustrating that the properties of both the antibody and linker-drug contribute to aggregation. These studies emphasize that the distinct properties of the molecule as a whole warrant a case-by-case evaluation of each ADC.

16.
Artigo em Inglês | MEDLINE | ID: mdl-32077746

RESUMO

Background: Cancer cells evade oxidative stress through the MutT homologue-1 (MTH1), a member of the Nudix family. MTH1 maintains genome integrity and the viability of tumor cells. A new class of MTH1 inhibitors have attracted interest as anticancer agents, but their mechanisms of action remain poorly characterized. In this study, the authors evaluated the anticancer effects of the MTH1 inhibitor TH287 on gastric cancer (GCa) cells. Materials and Methods: BGC-823 and SGC-7901 cells were treated with TH287 and CCK-8, and colony-forming assays were performed. Cell migration was assessed through Transwell and scratch assays. Apoptotic status was measured via flow cytometry and 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimidazolyl-carbocyanine iodide (JC-1) staining. Cell cycle status was assessed by propidium iodide (PI) staining. The expression of PI3K/AKT signaling-related proteins was verified by western blotting. Results: TH287 inhibited cell viability, reduced cell proliferation, inhibited apoptosis, induced G2/M arrest, and suppressed cell migration. A loss of mitochondrial membrane potential and reduced Bcl-2/Bax expression were also observed in TH287-treated cells. These effects were mediated through the inhibition of pro-oncogenic PI3K/AKT signaling. Conclusions: These findings indicate that the MTH1 inhibitor TH287 mediates an array of anticancer effects in GCa cells through its effects on mitochondrial function and PI3K/AKT signaling. Collectively, these data highlight the promise of TH287 as a novel therapeutic option for GCa cells.

17.
Nanotechnology ; 2020 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-32045900

RESUMO

Here, we successfully fabricated GO wrapped Ti/Co3O4NWs by electrophoretic deposition (EPD) based on the good dispersibility of GO in aqueous solution. Interestingly, GO can adhere to the surface of Co3O4NWs via ultrathin gossamer-like sheet, and the coverage and wrapping of GO on the surface of Co3O4NWs can be controlled by tuning the electrochemical deposition time and voltage. Our results also demonstrate that GO wrapped Co3O4 NWs had superior photoelectrochemical (PEC) activity for decolorization of dye (reactive brilliant blue KN-R) wastewater, mainly because the introduction of GO can tune oxygen evolution behavior, transportation of reactant and induced carriers, electrochemical active areas, and light-harvesting capability of Co3O4 NWs. Therefore,we anticipate that GO wrapped Ti/Co3O4 NWs could be considered as a promising photoanode for the treatment of organic pollutants in wastewater.

18.
Clin Chim Acta ; 506: 1-8, 2020 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-32109431

RESUMO

Autophagy, an evolutionarily conserved catabolic process, is the most important pathogenic events in the development and progression of liver diseases. Deregulation of Nrf2 is proposed to play a key pathogenic role in hepatocellular carcinoma (HCC). Under certain pathophysiological conditions, such as oxidative stress, impaired autophagy is accompanied by the Nrf2 activation that leads to the detrimental effects favoring the proliferation and survival of HCC. Elucidating its role and potential mechanism is essential for understanding tumorigenesis and the development of effective clinical application. Nrf2 is participated in HCC proliferation, migration and invasion through autophagy pathways. These includes the negatively regulated-Nrf2 by Keap1 that participates in HCC tumorigenesis via regulating ROS production, in which autophagy may contribute to oxidant metabolic reprogramming of HCC cells. Post-transcriptional modifications, such as phosphorylation and ubiquitination of Nrf2, can be positively or negatively induced by multiple transcription factors. Nrf2 exhibits chemoresistance through its binding sites in the promoter region of the target genes. Nrf2 may be a valuable potential biomarker and therapeutic strategy for diagnostics, prognostics and treatment of HCC.

19.
Lancet ; 395(10223): 507-513, 2020 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-32007143

RESUMO

BACKGROUND: In December, 2019, a pneumonia associated with the 2019 novel coronavirus (2019-nCoV) emerged in Wuhan, China. We aimed to further clarify the epidemiological and clinical characteristics of 2019-nCoV pneumonia. METHODS: In this retrospective, single-centre study, we included all confirmed cases of 2019-nCoV in Wuhan Jinyintan Hospital from Jan 1 to Jan 20, 2020. Cases were confirmed by real-time RT-PCR and were analysed for epidemiological, demographic, clinical, and radiological features and laboratory data. Outcomes were followed up until Jan 25, 2020. FINDINGS: Of the 99 patients with 2019-nCoV pneumonia, 49 (49%) had a history of exposure to the Huanan seafood market. The average age of the patients was 55·5 years (SD 13·1), including 67 men and 32 women. 2019-nCoV was detected in all patients by real-time RT-PCR. 50 (51%) patients had chronic diseases. Patients had clinical manifestations of fever (82 [83%] patients), cough (81 [82%] patients), shortness of breath (31 [31%] patients), muscle ache (11 [11%] patients), confusion (nine [9%] patients), headache (eight [8%] patients), sore throat (five [5%] patients), rhinorrhoea (four [4%] patients), chest pain (two [2%] patients), diarrhoea (two [2%] patients), and nausea and vomiting (one [1%] patient). According to imaging examination, 74 (75%) patients showed bilateral pneumonia, 14 (14%) patients showed multiple mottling and ground-glass opacity, and one (1%) patient had pneumothorax. 17 (17%) patients developed acute respiratory distress syndrome and, among them, 11 (11%) patients worsened in a short period of time and died of multiple organ failure. INTERPRETATION: The 2019-nCoV infection was of clustering onset, is more likely to affect older males with comorbidities, and can result in severe and even fatal respiratory diseases such as acute respiratory distress syndrome. In general, characteristics of patients who died were in line with the MuLBSTA score, an early warning model for predicting mortality in viral pneumonia. Further investigation is needed to explore the applicability of the MuLBSTA score in predicting the risk of mortality in 2019-nCoV infection. FUNDING: National Key R&D Program of China.


Assuntos
Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Pneumonia Viral/diagnóstico , Pneumonia Viral/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , China/epidemiologia , Comorbidade , Infecções por Coronavirus/complicações , Infecções por Coronavirus/terapia , Tosse/epidemiologia , Tosse/virologia , Surtos de Doenças , Dispneia/epidemiologia , Dispneia/virologia , Feminino , Febre/epidemiologia , Febre/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Pneumonia Viral/complicações , Pneumonia Viral/terapia , Prognóstico , Radiografia Torácica , Estudos Retrospectivos , Síndrome Respiratória Aguda Grave/epidemiologia , Síndrome Respiratória Aguda Grave/virologia , Tomografia Computadorizada por Raios X , Adulto Jovem
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