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1.
J Infect Dis ; 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38427829

RESUMO

BACKGROUND: The immunopathological mechanisms underlying neurosyphilis remain incompletely elucidated, and the diagnosis of neurosyphilis presents challenges. METHODS: We used an antibody microarray to detect 640 proteins in cerebrospinal fluid (CSF) samples collected from 6 non-neurosyphilis and 10 neurosyphilis patients. The levels of CSF CXCL1, CXCL8, G-CSF, LCN2, MMP8, and MMP9 in 46 non-neurosyphilis, 51 untreated neurosyphilis, and 31 post-treatment neurosyphilis patients were quantified using enzyme-linked immunosorbent assay. The associations between the levels of these proteins and clinical parameters in neurosyphilis were evaluated using Spearman's analysis, and the diagnostic performance of these proteins in neurosyphilis was assessed using receiver operating characteristic curve. RESULTS: A total of 102 differentially expressed proteins between neurosyphilis and non-neurosyphilis were identified. The levels of significantly elevated neutrophil-associated proteins (CXCL1, CXCL8, G-CSF, LCN2, MMP8, and MMP9) in neurosyphilis were positive correlations with WBC counts, RPR titer, and protein concentration in CSF. The combination of CSF CXCL8, MMP9, and LCN2 yielded an AUC of 0.92 for diagnosing neurosyphilis, surpassing that of CSF RPR. CONCLUSIONS: CXCL1, CXCL8, G-CSF, LCN2, MMP8, and MMP9 could be associated with central nervous system damage of neurosyphilis. The combination of CSF CXCL8, MMP9, and LCN2 is a promising biomarker for diagnosing neurosyphilis.

5.
Medicine (Baltimore) ; 102(51): e36735, 2023 Dec 22.
Artigo em Inglês | MEDLINE | ID: mdl-38134071

RESUMO

RATIONALE: This study aimed to address the diagnostic challenges associated with MYH9-related disorders (MYH9-RDs) and highlight the importance of recognizing Döhle body-like inclusions as crucial diagnostic markers for this condition. PATIENT CONCERNS: Patients with MYH9-RDs often present with mild and diverse clinical characteristics, leading to misdiagnosis, delayed diagnosis, and inappropriate treatments, such as hormonal therapy and splenectomy. This section highlights the significance of understanding atypical clinical presentations and their impact on patients' well-being. DIAGNOSES: This section emphasizes the misdiagnosis of MYH9-RDs as immune thrombocytopenia due to overlapping clinical features. This highlights the need for a comprehensive approach, including detailed personal and family history, careful review of peripheral blood smears, and identification of Döhle body-like inclusions to differentiate MYH9-RDs from other conditions. INTERVENTION: This study advocates for a shift in the diagnostic approach, urging physicians to pay closer attention to the morphological features observed in peripheral blood smears, particularly the presence of Döhle body-like inclusions and large platelets. This emphasizes the importance of avoiding unnecessary diagnostic studies through effective utilization of this simple and reliable method. OUTCOMES: By adopting a comprehensive approach that combines gene sequencing with morphological analysis, an accurate diagnosis of MYH9-RDs can be achieved. Early identification of MYH9-RDs allows for appropriate management strategies, genetic counseling, and prevention of complications associated with the condition. LESSONS: This section highlights the lessons learned from this study, emphasizing the need for increased awareness among healthcare professionals about MYH9-RDs and the importance of incorporating peripheral blood smear evaluations into the diagnostic process. This emphasizes the significance of accurate diagnosis to prevent unnecessary treatments and ensure appropriate patient care.


Assuntos
Perda Auditiva Neurossensorial , Trombocitopenia , Humanos , Perda Auditiva Neurossensorial/diagnóstico , Proteínas Motores Moleculares/genética , Mutação , Cadeias Pesadas de Miosina/genética , Trombocitopenia/diagnóstico , Trombocitopenia/genética , Masculino , Adulto
6.
Medicine (Baltimore) ; 102(42): e35617, 2023 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-37861502

RESUMO

Antimitochondrial antibody (AMA) serves as a serological marker for diagnosing primary biliary cholangitis (PBC). However, the association between AMA and prognosis for PBC patients remains unclear. The objective of this study was to investigate the relationship between AMA and cirrhosis in PBC patients. This retrospective study enrolled 225 PBC patients, including 127 with liver cirrhosis and 98 without cirrhosis. AMA was tested by indirect immunofluorescence (IIF) with rat kidney as the substrate. AMA-M2 and M2-3E were detected by line immunoassay (LIA). The overall positivity rate for AMA detection in PBC patients was 80.9%. The positivity rates of IIF-AMA, AMA-M2, and M2-3E were significantly higher in patients with liver cirrhosis than in those without cirrhosis (73.2% vs. 52.0%, 74.0% vs. 51.0%, and 80.3% vs. 60.2%, respectively). In multivariate logistic regression, IIF-AMA (OR: 3.05, 95% CI: 1.59-5.87), AMA-M2 (OR: 3.11, 95% CI: 1.61-6.01), and M2-3E (OR: 3.29, 95% CI: 1.63-6.66) remained significantly associated with an increased incidence of liver cirrhosis. Moreover, in multinomial logistic regression, IIF-AMA (compensated cirrhosis, OR: 3.55, 95% CI: 1.49-8.44; decompensated cirrhosis, OR: 2.86, 95% CI: 1.32-6.18), AMA-M2 (compensated cirrhosis, OR: 4.74, 95% CI: 1.94-11.58; decompensated cirrhosis, OR: 2.51, 95% CI: 1.19-5.33), and M2-3E (compensated cirrhosis, OR: 4.92, 95% CI: 1.74-13.96; decompensated cirrhosis, OR: 2.91, 95% CI: 1.28-6.64) were all found to be associated with different stages of liver cirrhosis. AMA was found to be associated with the occurrence of liver cirrhosis in PBC patients. Additionally, AMA was also related to different stages of liver cirrhosis, including compensated and decompensated cirrhosis.


Assuntos
Cirrose Hepática Biliar , Animais , Ratos , Humanos , Cirrose Hepática Biliar/complicações , Autoanticorpos , Estudos Retrospectivos , Cirrose Hepática/complicações , Imunoensaio
7.
Sex Health ; 20(6): 497-505, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37649382

RESUMO

BACKGROUND: The longer ongoing benefits of coronavirus disease 2019 (COVID-19) non-pharmaceutical interventions (NPIs) for sexually transmitted diseases (STDs) in China are still unclear. We aimed to explore the changes in five STDs (AIDS, hepatitis B, hepatitis C, gonorrhoea, and syphilis) before, during, and after the COVID-19 pandemic in mainland China, from 2010 to 2021. METHODS: The number of the monthly reported cases of the five STDs were extracted from the website to construct the Joinpoint regression and autoregressive integrated moving average (ARIMA) models. Eight indicators reflecting NPIs were chosen from the COVID-19 Government Response Tracker system. The STDs and eight indicators were used to establish the Multivariable generalised linear model (GLM) to calculate the incidence rate ratios (IRRs). RESULTS: With the exception of hepatitis B, the other four STDs (AIDS, hepatitis C, gonorrhoea, and syphilis) had a positive average annual percent change over the past 12years. All the ARIMA models had passed the Ljung-Box test, and the predicted data fit well with the data from 2010 to 2019. All five STDs were significantly reduced in 2020 compared with 2019, with significant estimated IRRs ranging from 0.88 to 0.92. In the GLM, using data for the years 2020 (February-December) and 2021, the IRRs were not significant after adjusting for the eight indicators in multivariate analysis. CONCLUSION: Our study demonstrated that the incidence of the five STDs decreased rapidly during the COVID-19 pandemic in 2020. A recovery of STDs in 2021 was found to occur compared with that in 2020, but the rising trend disappeared after adjusting for the NPIs. Our study demonstrated that NPIs have an effect on STDs, but the relaxation of NPI usage might lead to a resurgence.


Assuntos
Síndrome de Imunodeficiência Adquirida , COVID-19 , Gonorreia , Hepatite B , Hepatite C , Infecções Sexualmente Transmissíveis , Sífilis , Humanos , Sífilis/epidemiologia , Gonorreia/epidemiologia , Pandemias , Infecções Sexualmente Transmissíveis/epidemiologia , Hepatite B/epidemiologia , Hepatite C/epidemiologia , China/epidemiologia
8.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 45(3): 530-532, 2023 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-37407545

RESUMO

The acquired immunodeficiency syndrome patients with compromised immunity are prone to hemophagocytic syndrome secondary to opportunistic infections.This paper reports a rare case of hemophagocytic syndrome secondary to human parvovirus B19 infection in an acquired immunodeficiency syndrome patient,and analyzes the clinical characteristics,aiming to improve the diagnosis and treatment of the disease and prevent missed diagnosis and misdiagnosis.


Assuntos
Síndrome de Imunodeficiência Adquirida , Eritema Infeccioso , Linfo-Histiocitose Hemofagocítica , Infecções por Parvoviridae , Parvovirus B19 Humano , Humanos , Linfo-Histiocitose Hemofagocítica/diagnóstico , Linfo-Histiocitose Hemofagocítica/tratamento farmacológico , Eritema Infeccioso/complicações , Síndrome de Imunodeficiência Adquirida/complicações , Infecções por Parvoviridae/complicações , Infecções por Parvoviridae/diagnóstico
9.
BMC Public Health ; 23(1): 217, 2023 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-36721137

RESUMO

BACKGROUND: The ongoing benefits of coronavirus disease 2019 (COVID-19) nonpharmaceutical interventions (NPIs) for respiratory infectious diseases in China are still unclear. We aimed to explore the changes in seven respiratory infectious diseases before, during, and after COVID-19 in China from 2010 to 2021. METHODS: The monthly case numbers of seven respiratory infectious diseases were extracted to construct autoregressive integrated moving average (ARIMA) models. Eight indicators of NPIs were chosen from the COVID-19 Government Response Tracker system. The monthly case numbers of the respiratory diseases and the eight indicators were used to establish the Multivariable generalized linear model (GLM) to calculate the incidence rate ratios (IRRs). RESULTS: Compared with the year 2019, the percentage changes in 2020 and 2021 were all below 100% ranging from 3.81 to 84.71%. Pertussis and Scarlet fever started to increase in 2021 compared with 2020, with a percentage change of 183.46 and 171.49%. The ARIMA model showed a good fit, and the predicted data fitted well with the actual data from 2010 to 2019, but the predicted data was bigger than the actual number in 2020 and 2021. All eight indicators could negatively affect the incidence of respiratory diseases. The seven respiratory diseases were significantly reduced during the COVID-19 pandemic in 2020 and 2021 compared with 2019, with significant estimated IRRs ranging from 0.06 to 0.85. In the GLM using data for the year 2020 and 2021, the IRRs were not significant after adjusting for the eight indicators in multivariate analysis. CONCLUSION: Our study demonstrated the incidence of the seven respiratory diseases decreased rapidly during the COVID-19 pandemic in 2020 and 2021. At the end of 2021, we did see a rising trend for the seven respiratory diseases compared to the year 2020 when the NPIs relaxed in China, but the rising trend was not significant after adjusting for the NPIs indicators. Our study showed that NPIs have an effect on respiratory diseases, but Relaxation of NPIs might lead to the resurgence of respiratory diseases.


Assuntos
COVID-19 , Transtornos Respiratórios , Doenças Respiratórias , Humanos , Pandemias , COVID-19/epidemiologia , Doenças Respiratórias/epidemiologia , China/epidemiologia
10.
PLoS One ; 17(7): e0270512, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35776774

RESUMO

BACKGROUND AND AIMS: The aim of this study was to evaluate the diagnostic value of FibroTouch and serological models on staging hepatic fibrosis in chronic liver diseases. METHODS: We recruited 850 patients undergoing liver biopsy and received FibroTouch test before or after liver biopsy within one week, blood was taken for the routine inspection before the operation within one week. The serological models were calculated by the blood results and routine clinical information. The diagnostic value of FibroTouch and six serological models was analyzed by receiver operating characteristic curve (ROC). RESULTS: Patients with severe liver fibrosis had significantly higher AST, ALT, GGT, RDW, ALP, and FT-LSM. The area under the receiver operating characteristic curve (AUROC) of FT-LSM for the liver diagnosis of S≥2, S≥3 and S = 4 was 0.75(95% confidence interval [CI]:0.72-0.78), 0.83(95% CI: 0.80-0.86), and 0.85 (95% CI: 0.81-0.89), respectively. The optimal cut-off of FT-LSM for diagnosing S≥2, S≥3 and S = 4 was 8.7, 10.7, and 12.3, respectively. CONCLUSIONS: Our study showed the FibroTouch has a higher diagnostic value compared with the non-invasive serological models in staging the fibrosis stage. The cut-off of FibroTouch and five serological models (APRI, FIB-4, S-index, Forns, and PRP) increased with the severe of fibrosis stage.


Assuntos
Doença Enxerto-Hospedeiro , Hepatopatias , Doença Crônica , Humanos , Cirrose Hepática/diagnóstico , Cirrose Hepática/patologia , Curva ROC , Estudos Retrospectivos
11.
J Microbiol Immunol Infect ; 54(1): 101-104, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32807688

RESUMO

A case who revealed the longest duration of viral shedding (67 days) in current reports, presented complicated characteristic on the relapse of COVID-19 due to the inconsistent performance of chest radiography and SARS-CoV-2-RNA detection after discharge. Lopinavir-interferon α2b boosted ribavirin following with lopinavir boosted budesonide might be a potent treatment for viral clearance.


Assuntos
COVID-19/virologia , SARS-CoV-2/fisiologia , Assistência ao Convalescente , COVID-19/diagnóstico por imagem , COVID-19/fisiopatologia , Feminino , Hospitalização , Humanos , Lopinavir/uso terapêutico , Pessoa de Meia-Idade , Alta do Paciente , RNA Viral/genética , RNA Viral/isolamento & purificação , Recidiva , Ribavirina/uso terapêutico , SARS-CoV-2/genética , Tórax/diagnóstico por imagem , Eliminação de Partículas Virais/efeitos dos fármacos , Tratamento Farmacológico da COVID-19
12.
BMC Public Health ; 20(1): 1284, 2020 Aug 26.
Artigo em Inglês | MEDLINE | ID: mdl-32843011

RESUMO

BACKGROUND: China has always been one of the countries with the most serious Tuberculosis epidemic in the world. Our study was to observe the Spatial-temporal characteristics and the epidemiology of Tuberculosis in China from 2004 to 2017 with Joinpoint regression analysis, Seasonal Autoregressive integrated moving average (SARIMA) model, geographic cluster, and multivariate time series model. METHODS: The data of TB from January 2004 to December 2017 were obtained from the notifiable infectious disease reporting system supplied by the Chinese Center for Disease Control and Prevention. The incidence trend of TB was observed by the Joinpoint regression analysis. The Seasonal autoregressive integrated moving average (SARIMA) model was used to predict the monthly incidence. Geographic clusters was employed to analyze the spatial autocorrelation. The relative importance component of TB was detected by the multivariate time series model. RESULTS: We included 13,991,850 TB cases from January 2004 to December 2017, with a yearly average morbidity of 999,417 cases. The final selected model was the 0 Joinpoint model (P = 0.0001) with an annual average percent change (AAPC) of - 3.3 (95% CI: - 4.3 to - 2.2, P < 0.001). A seasonality was observed across the 14 years, and the seasonal peaks were in January and March every year. The best SARIMA model was (0, 1, 1) X (0, 1, 1)12 which can be written as (1-B) (1-B12) Xt = (1-0.42349B) (1-0.43338B12) εt, with a minimum AIC (880.5) and SBC (886.4). The predicted value and the original incidence data of 2017 were well matched. The MSE, RMSE, MAE, and MAPE of the modelling performance were 201.76, 14.2, 8.4 and 0.06, respectively. The provinces with a high incidence were located in the northwest (Xinjiang, Tibet) and south (Guangxi, Guizhou, Hainan) of China. The hotspot of TB transmission was mainly located at southern region of China from 2004 to 2008, including Hainan, Guangxi, Guizhou, and Chongqing, which disappeared in the later years. The autoregressive component had a leading role in the incidence of TB which accounted for 81.5-84.5% of the patients on average. The endemic component was about twice as large in the western provinces as the average while the spatial-temporal component was less important there. Most of the high incidences (> 70 cases per 100,000) were influenced by the autoregressive component for the past 14 years. CONCLUSION: In a word, China still has a high TB incidence. However, the incidence rate of TB was significantly decreasing from 2004 to 2017 in China. Seasonal peaks were in January and March every year. Obvious geographical clusters were observed in Tibet and Xinjiang Province. The relative importance component of TB driving transmission was distinguished from the multivariate time series model. For every provinces over the past 14 years, the autoregressive component played a leading role in the incidence of TB which need us to enhance the early protective implementation.


Assuntos
Notificação de Doenças/estatística & dados numéricos , Vigilância da População , Tuberculose/diagnóstico , Tuberculose/epidemiologia , China/epidemiologia , Feminino , Previsões , Humanos , Incidência , Masculino , Análise de Regressão , Análise Espaço-Temporal
13.
Pathog Dis ; 78(4)2020 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-32592396

RESUMO

The evidence of long-term clinical dynamic on Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) RNA re-positive case are less. We performed a 108 days follow-up on dynamic clinical presentations in a case, who hospitalized three times due to the positive recurrence of SARS-CoV-2 RNA after discharge, to understand the prognosis of the 2019-Coronavirus disease (COVID-19). In this case, positive SARS-CoV-2 recurred even after apparent recovery (normal CT imaging, no clinical symptoms, negative SARS-CoV-2 on stool sample and negative serum IgM test) from COVID-19, viral shedding duration lasted for 65 days, the time from symptom onset to disappearance was up to 95 days. Erythrocyte-associated indicators, liver function and serum lipid metabolism presented abnormal throughout during the observation period. Awareness of atypical presentations such as this one is important to prompt the improvement of the management of COVID-19.


Assuntos
Betacoronavirus/patogenicidade , Infecções por Coronavirus/sangue , Infecções por Coronavirus/virologia , Pneumonia Viral/sangue , Pneumonia Viral/virologia , RNA Viral/genética , Eliminação de Partículas Virais , Adulto , Alanina Transaminase/sangue , Antivirais/uso terapêutico , Aspartato Aminotransferases/sangue , Betacoronavirus/efeitos dos fármacos , Betacoronavirus/genética , Biomarcadores/sangue , COVID-19 , HDL-Colesterol/sangue , Infecções por Coronavirus/diagnóstico por imagem , Infecções por Coronavirus/tratamento farmacológico , Hospitalização , Humanos , Interferon alfa-2/uso terapêutico , Lopinavir/uso terapêutico , Masculino , Metilprednisolona/uso terapêutico , Pandemias , Pneumonia Viral/diagnóstico por imagem , Pneumonia Viral/tratamento farmacológico , RNA Viral/isolamento & purificação , Recidiva , SARS-CoV-2 , Tomografia Computadorizada por Raios X , gama-Glutamiltransferase/sangue
14.
Ther Clin Risk Manag ; 16: 299-310, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32368069

RESUMO

PURPOSE: Estimated glomerular filtration rate (eGFR) decline in HIV-1-infected patients exposure to tenofovir disoproxil fumarate (TDF) has been widely assessed using linear models, but nonlinear assumption is not well validated. We constructed a retrospective cohort study to assess whether eGFR decline follows nonlinearity during antiviral therapy. PATIENTS AND METHODS: We examined 823 (299 of TDF users and 524 of non-TDF users) treatment-naïve HIV-1-infected participants (age ≥ 17 years, initial eGFR ≥ 90 mL/min/1.73m2). Estimated GFR trajectories were compared by one-linear and piecewise-linear mixed effects models, before and after propensity score matching, respectively. Whether the incidence of renal dysfunction (reduced renal function [RRF], eGFR < 90 mL/min/1.73 m2 and rapid kidney function decline [RKFD], eGFR > -3 mL/min/1.73 m2/year) follows nonlinearity was assessed by logistic regression. RESULTS: The median follow-up time of this study was 10 (interquartile range, 2-20) months, during which 178 (21.6%) experienced RRF, and 451 (54.8%) experienced RKFD. The slopes (mL/min/1.73 m2/year) of eGFR were -5.31 (95% CI: -6.57, -4.06) before 1.40 years, 4.83 (95% CI: 1.38, 8.28) from years 1.40 to 2.30 and -3.71 (95% CI: -5.97, -1.45) after 2.30 years among TDF users. Within years 1.40-2.30, each year of TDF exposure was associated with a 78% decreased risk of RKFD (95% CI: -91%, -49%). In comparison, eGFR increased slightly at the initiation of antiviral therapy, declined after 2.15 years (-4.96; 95% CI: -5.76, -4.17) among non-TDF users. Such a progression nonlinear trajectory was missed on the assumption of one-linearity, whether in TDF or non-TDF users. CONCLUSION: Over the piecewise mixed-effects analyses with the advantage of revealing the true nature of the exposure outcome relationships, an interesting reverse S-shaped relationship was observed. A routine screen based on nonlinearity could be more helpful for patient management.

15.
Int J Infect Dis ; 94: 49-52, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32251798

RESUMO

OBJECTIVE: To investigate the diagnostic value of serological testing and dynamic variance of serum antibody in coronavirus disease 2019 (COVID-19). METHODS: This study retrospectively included 43 patients with a laboratory-confirmed infection and 33 patients with a suspected infection, in whom the disease was eventually excluded. The IgM/IgG titer of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was measured by chemiluminescence immunoassay analysis. RESULTS: Compared to molecular detection, the sensitivities of serum IgM and IgG antibodies to diagnose COVID-19 were 48.1% and 88.9%, and the specificities were 100% and 90.9%, respectively.In the COVID-19 group, the IgM-positive rate increased slightly at first and then decreased over time; in contrast, the IgG-positive rate increased to 100% and was higher than IgM at all times. The IgM-positive rate and titer were not significantly different before and after conversion to virus-negative. The IgG-positive rate was up to 90% and not significantly different before and after conversion to virus-negative. However, the median IgG titer after conversion to virus-negative was double that before, and the difference was significant. CONCLUSIONS: Viral serological testing is an effective means of diagnosis for SARS-CoV-2 infection. The positive rate and titer variance of IgG are higher than those of IgM in COVID-19.


Assuntos
Betacoronavirus/imunologia , Infecções por Coronavirus/diagnóstico , Imunoglobulina G/sangue , Imunoglobulina M/sangue , Pneumonia Viral/diagnóstico , COVID-19 , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias , Estudos Retrospectivos , SARS-CoV-2 , Testes Sorológicos
16.
Int J Infect Dis ; 95: 183-191, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32173576

RESUMO

OBJECTIVES: To explore the epidemiological information, clinical characteristics, therapeutic outcomes and temporal progression of laboratory findings in 2019-coronavirus disease (COVID-19) patients exposed to lopinavir. METHODS: We collected data from ten COVID-19 patients admitted between January 22, 2020 and February 11, 2020 at Xixi hospital in Hangzhou, China. RESULTS: Of ten patients, secondary, tertiary and quartus patients emerged; the incubation period was 3-7 days. Mainly initial symptoms were cough and low fever (37.3-38.0°C). An asymptomatic case presented normal radiography, the others had ground glass opacities. All cases (three transferred, seven discharged) were exposed to lopinavir on initial hospitalization. Three patients stopped lopinavir because of adverse effects, two of them deteriorated, one was hospitalized longer than others who with sustained lopinavir use. Levels of potassium, albumin, and lymphocytes were low, but increased persistently after treatment. Eosinophil values were low on initial hospitalization, then all returned to normal before discharge. Viral load of SARS-CoV-2, radiography and eosinophil improved continuously in 3-14, 6-8 and 7-9 days, respectively. CONCLUSIONS: Increasing eosinophils may be an indicator of COVID-19 improvement. The COVID-19 patients may benefit from sustained lopinavir use. More research on a larger scale is needed to verify these points.


Assuntos
Betacoronavirus , Infecções por Coronavirus/tratamento farmacológico , Eosinófilos , Lopinavir/administração & dosagem , Pneumonia Viral/tratamento farmacológico , COVID-19 , Infecções por Coronavirus/sangue , Progressão da Doença , Quimioterapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia Viral/sangue , SARS-CoV-2 , Tratamento Farmacológico da COVID-19
17.
Electrophoresis ; 39(2): 406-416, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28972666

RESUMO

Circulating immune complexes (CICs) are produced during the immune response. It is more clinically important to establish a general and efficient CICs dissociation technique for the detection of antigens for CICs other than the detection of free antigens in the serum. Polyethylene glycol (PEG) two-precipitation separation and glycine-HCl as a buffer system were employed to develop a general and efficient buffer dissociation technique to separate CICs from serum and dissociate antigens from CICs. The measurement value of new PEG two-precipitation separation technique was higher than traditional PEG precipitation separation technique. There were slight differences in the dissociation conditions of HCV Core-IC, HIV P24-IC, Ins-IC and TG-IC as compared to HBsAg-IC. The detection of antigens in HBsAg-IC, HCV Core-IC, HIV P24-IC, Ins-IC and TG-IC with this technique was superior to that with HCl Dissociation, Trypsin Digestion or Immune Complex Transfer technique. PEG two-precipitation dissociation technique may reduce macromolecular protein and the adhesion of free antigens during the co-precipitation, which increases the efficiency of separation and precipitation of CICs. This technique also avoids the damage of reagents to antigens, assuring the repeatability, reliability and validity. Thus, this technique is application in samples negative or positive for free antigens.


Assuntos
Complexo Antígeno-Anticorpo/sangue , Complexo Antígeno-Anticorpo/química , Precipitação Química , Complexo Antígeno-Anticorpo/isolamento & purificação , Estudos de Casos e Controles , Ensaio de Imunoadsorção Enzimática , Glicina/química , Hepatite B/sangue , Hepatite B/imunologia , Anticorpos Anti-Hepatite B/sangue , Anticorpos Anti-Hepatite B/química , Anticorpos Anti-Hepatite B/isolamento & purificação , Antígenos de Superfície da Hepatite B/sangue , Antígenos de Superfície da Hepatite B/química , Antígenos de Superfície da Hepatite B/isolamento & purificação , Humanos , Polietilenoglicóis/química
18.
Stem Cells Int ; 2016: 7174319, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27721836

RESUMO

Background & Aims. Severe acute pancreatitis (SAP) remains a high-mortality disease. Bone marrow (BM) mesenchymal stem cells (MSCs) have been demonstrated to have plasticity of transdifferentiation and to have immunomodulatory functions. In the present study, we assessed the roles of MSCs in SAP and the therapeutic effects of MSC on SAP after transplantation. Methods. A pancreatitis rat model was induced by the injection of taurocholic acid (TCA) into the pancreatic duct. After isolation and characterization of MSC from BM, MSC transplantation was conducted 24 hrs after SAP induction by tail vein injection. The survival rate was observed and MSCs were traced after transplantation. The expression of TNF-α and IL-1ß mRNA in the transplantation group was also analyzed. Results. The survival rate of the transplantation group was significantly higher compared to the control group (p < 0.05). Infused MSCs were detected in the pancreas and BM 3 days after transplantation. The expression of TNF-α and IL-1ß mRNA in the transplantation group was significantly lower than in the control group in both the pancreas and the lungs (p < 0.05). Conclusions. MSC transplantation could improve the prognosis of SAP rats. Engrafted MSCs have the capacity of homing, migration, and planting during the treatment of SAP.

19.
Int J Syst Evol Microbiol ; 63(Pt 5): 1800-1804, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-22962335

RESUMO

Two Gram-staining-negative, aerobic, non-spore-forming rod-shaped, non-motile bacteria, designated strains R156-2(T) and T58-2 were isolated from the roots of Cymbidium goeringii. The colonies were yellow-pigmented. On the basis of 16S rRNA gene sequence similarity, strains R156-2(T) and T58-2 were shown to be members of the genus Chitinophaga. Strains R156-2(T) and T58-2 showed the greatest level of sequence similarity with Chitinophaga niabensis (96.0-96.3 %). The major menaquinone was MK-7. The main cellular fatty acids were iso-C15 : 0, C16 : 1ω5c and iso-C17 : 0 3-OH. Phenotypic and genotypic analyses indicated that strains R156-2(T) and T58-2 could not be assigned to any recognized species. Therefore, strains R156-2(T) and T58-2 represent a novel species of the genus Chitinophaga, for which the name Chitinophaga cymbidii sp. nov. is proposed. The type strain is R156-2(T) ( = ACCC 05363(T) = KCTC 23738(T)). The DNA G+C content of this strain is 51.9 mol%.


Assuntos
Bacteroidetes/classificação , Orchidaceae/microbiologia , Filogenia , Raízes de Plantas/microbiologia , Microbiologia do Solo , Técnicas de Tipagem Bacteriana , Bacteroidetes/genética , Bacteroidetes/isolamento & purificação , Composição de Bases , China , DNA Bacteriano/genética , Ácidos Graxos/análise , Dados de Sequência Molecular , RNA Ribossômico 16S/genética , Análise de Sequência de DNA , Vitamina K 2/análogos & derivados , Vitamina K 2/análise
20.
Zhonghua Gan Zang Bing Za Zhi ; 19(2): 88-92, 2011 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-21492508

RESUMO

To compare the efficacy and safety of Lamivudine (LAM) plus Adefovir dipivoxil (ADV) combination therapy and Entecavir (ETV) monotherapy for chronic hepatitis B patients. 120 patients with chronic hepatitis B managed in a single-centre clinical practice (median 96 weeks) were split into 2 cohorts, one was treated with de-novo combination Lamivudine (100 mg/day) plus Adefovir (10 mg/day) (LAM+ADV), the other with Entecavir (0.5 mg/day) monotherapy. Serum levels of ALT, creatinine, HBsAg, HBeAg and HBV viral load, together with genotypic resistence were analyzed at 0, 12, 24, 48, 96 weeks, respectively. HBV DNA was determined by real-time PCR. HBsAg and HBeAg were assessed by chemiluminescence. Serum levels of ALT and creatinine were detected by automatic biochemical analyzer. HBV genotypic resistence was tested by direct sequencing. (1) At the time point of 96 weeks, a total of 99 patients (51 cases in combination therapy cohort and 48 case in monotherapy cohort) were compared. The baseline characteristics as for HBV viral load, median age, serum levels of ALT and creatinine were compatible between combination therapy cohort and monotherapy cohort. (2) The rates of HBV DNA values is less than 300 copies/ml and HBV DNA values is less than 1000 copies/ml had no significant difference between LAM + ADV and ETV cohorts by the 12 and 24 weeks (P more than 0.05). (3) At the time point of 48 weeks, the rates of HBV DNA is less than 1000 copies/ml, HBeAg seroconversion, and ALT normalization were similar in both cohorts, though the rate of HBV DNA values is less than 300 copies/ml was obviously higher in combination therapy cohort than that of monotherapy cohort (90.7% vs 76%, P values is less than 0.05). (4) At the time point of 96 weeks, the rates of HBV DNA values is less than 300 copies/ml (96.1% vs 79.2%), HBV DNA values is less than 1000 copies/ml (98% vs 87.5%) and the HBeAg seroconversion (41.7% vs 16.7%) were markedly higher in combination therapy cohort than those of monotherapy cohort statistically (P values is less than 0.05 for all). The mean values of decreases for HBV viral loads and HBsAg levels were smilar in both cohorts at 48 and 96 weeks. (5) Elevated serum creatinine not be found in both cohorts at the end of treatment. (6) No virological breakthrough occurred in combination therapy cohort at the end of treatment. Four patients in monotherapy cohort were found with virological breakthrough at 96 weeks and three cases among were confirmed to be of variants associated with ETV resistance (rtL180M + T184L + M204V). Present study suggests that Lamivudine plus Adefovir dipivoxil de-novo combination therapy was more efficacious than Entecavir monotherapy for CHB patients and the tolerance is compatible.

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