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1.
Heliyon ; 10(9): e30901, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38774103

RESUMEN

Recent advances have revealed that the role of the immune system is prominent in the antitumor response. In the present study, it is aimed to provide an expression profile of tumor-infiltrating lymphocytes (TILs), including mature B cells, plasma cells, and their clinical relevance in neuroblastoma. The expression of CD20 and CD138 was analyzed in the Cangelosi786 dataset (n = 769) as a training dataset and in our cohort (n = 120) as a validation cohort. CD20 high expression was positively associated with favorable overall survival (OS) and event-free survival (EFS) (OS: P < 0.001; EFS: P < 0.001) in the training dataset, whereas CD138 high expression was associated with poor OS and EFS (OS: P < 0.001; EFS: P < 0.001) in both the training and validation datasets. Accordingly, a combined pattern of CD20 and CD138 expression was developed, whereby neuroblastoma patients with CD20highCD138low expression had a consistently favorable OS and EFS compared with those with CD20lowCD138high expression in both the training and validation cohorts (P < 0.0001 and P < 0.01, respectively). Examination of potential molecular functions revealed that signaling pathways, including cytokine‒cytokine receptor interactions, chemokine, and the NF-kappa B signaling pathways, were involved. Differentially expressed genes, such as BMP7, IL7R, BIRC3, CCR7, CXCR5, CCL21, and CCL19, predominantly play important roles in predicting the survival of neuroblastoma patients. Our study proposes that a new combination of CD20 and CD138 signatures is associated with neuroblastoma patient survival. The related signaling pathways reflect the close associations among the number of TILs, cytokine abundance and patient outcomes and provide therapeutic insights into neuroblastoma.

2.
Artículo en Inglés | MEDLINE | ID: mdl-38386144

RESUMEN

Microbial fuel cells (MFCs) are a promising technology for obtaining energy in wastewater. Effective extracellular electron transfer is one of the key factors for its practical application. In this work, carbon dots (CDs) enriched with oxygen-containing groups on the surface were synthesized as an efficient anode modifier using a simple hydrothermal method and common reactants. The experimental findings indicated that anodes modified with CDs exhibited increased electrical conductivity and greater hydrophilicity. These modifications facilitated increased microorganism loading and contributed to enhancing electrochemical processes within the anode biofilm. The CD-modified MFCs exhibited higher maximum power density (661.1 ± 42.6 mW·m-2) and open-circuit voltage (534.50 ± 6.4 mV), which were significantly better than those of the blank group MFCs (484.1 ± 14.1 mW·m-2 and 447.50 ± 12.1 mV). The use of simple carbon materials to improve the microbial loading on the MFCs anode and the electron transfer between the microbial-electrode may provide a new idea for the design of efficient MFCs.

3.
J Immunother Cancer ; 11(5)2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-37130627

RESUMEN

BACKGROUND: Neuroblastoma (NB) places a substantial health burden on families worldwide. This study aimed to develop an immune checkpoint-based signature (ICS) based on the expression of immune checkpoints to better assess patient survival risk and potentially guide patient selection for immunotherapy of NB. METHODS: Immunohistochemistry integrated with digital pathology was used to determine the expression levels of 9 immune checkpoints in 212 tumor tissues used as the discovery set. The GSE85047 dataset (n=272) was used as a validation set in this study. In the discovery set, the ICS was constructed using a random forest algorithm and confirmed in the validation set to predict overall survival (OS) and event-free survival (EFS). Kaplan-Meier curves with a log-rank test were drawn to compare the survival differences. A receiver operating characteristic (ROC) curve was applied to calculate the area under the curve (AUC). RESULTS: Seven immune checkpoints, including PD-L1, B7-H3, IDO1, VISTA, T-cell immunoglobulin and mucin domain containing-3 (TIM-3), inducible costimulatory molecule (ICOS) and costimulatory molecule 40 (OX40), were identified as abnormally expressed in NB in the discovery set. OX40, B7-H3, ICOS and TIM-3 were eventually selected for the ICS model in the discovery set, and 89 patients with high risk had an inferior OS (HR 15.91, 95% CI 8.87 to 28.55, p<0.001) and EFS (HR 4.30, 95% CI 2.80 to 6.62, p<0.001). Furthermore, the prognostic value of the ICS was confirmed in the validation set (p<0.001). Multivariate Cox regression analysis demonstrated that age and the ICS were independent risk factors for OS in the discovery set (HR 6.17, 95% CI 1.78 to 21.29 and HR 1.18, 95% CI 1.12 to 1.25, respectively). Furthermore, nomogram A combining the ICS and age demonstrated significantly better prognostic value than age alone in predicting the patients' 1-year, 3-year and 5-year OS in the discovery set (1 year: AUC, 0.891 (95% CI 0.797 to 0.985) vs 0.675 (95% CI 0.592 to 0.758); 3 years: 0.875 (95% CI 0.817 to 0.933) vs 0.701 (95% CI 0.645 to 0.758); 5 years: 0.898 (95% CI 0.851 to 0.940) vs 0.724 (95% CI 0.673 to 0.775), respectively), which was confirmed in the validation set. CONCLUSIONS: We propose an ICS that significantly differentiates between low-risk and high-risk patients, which might add prognostic value to age and provide clues for immunotherapy in NB.


Asunto(s)
Receptor 2 Celular del Virus de la Hepatitis A , Neuroblastoma , Humanos , Neuroblastoma/tratamiento farmacológico , Área Bajo la Curva , Inmunoterapia , Análisis Multivariante
4.
Chem Sci ; 14(7): 1852-1860, 2023 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-36819854

RESUMEN

Metal-organic framework (MOF)-based heterostructures are attractive because they can provide versatile platforms for various applications but are limited by complex liquid epitaxial growth methods. Here, we employ photolithography to fabricate and control MOF-based heterostructured crystals via [4 + 4] photocycloaddition. A layered dysprosium-dianthracene framework, [Dy(NO3)3(depma2)1.5]·(depma2)0.5 (2) [depma2 = pre-photodimerized 9-diethylphosphonomethylanthracene (depma)] underwent a single-crystal-to-single-crystal transition at 140 °C to form [Dy(NO3)3(depma)(depma2)]·(depma2)0.5 (3). The dissociated anthracene moieties are face-to-face π-π interacted allowing a reversible photocycloaddition between 2 and 3. This structural transformation causes a luminescence switch between blue and yellow-green and thus can be used to fabricate erasable 2 + 3 heterostructured crystals for rewritable photonic barcodes. The internal strain at the heterostructure interface leads to photobending and straightening of the crystal, a photomechanical response that is fast, reversible and durable, even operating at 140 °C, making it promising for photoactuation. This work may inspire the development of intelligent MOF-based heterostructures for photonic applications.

5.
J Craniofac Surg ; 34(2): 743-746, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36184766

RESUMEN

The punch tool is a swift and practical instrument in the facial pigmented melanocytic nevus. However, few studies have evaluated the efficacy of the method for facial pigmented nevus. The aim of this study was to evaluate the practicability and effectiveness of removing facial pigmented nevus by punch biopsy technique. This was an observational study of patients with facial pigmented nevus in the Hospital of Plastic Surgery, Weifang Medical University. The ages of patients ranged from 15 to 36 years (average, 25 y). The outcome evaluations included Vancouver Scar Scale (VSS) score, esthetic appearance, and patient satisfaction. Following standard procedures, preoperative surgical excision was performed with safety margins. Anatomopathologic analysis of the surgical specimen was used as the gold standard to evaluate the accuracy of diagnosis by punch biopsy. From January 2019 to January 2020, this punch technique was carried out on 96 patients (151 pigmented nevus) with 35 melanocytic nevus on the forehead, 39 on the cheek, 21 on the eyelid, and 45 on the nose, whereas 11 were on nasolabial folds. The diameters of pigmented nevus are 0.5 to 10 mm on the face. All patients were evaluated at a follow-up visit ranging from 6 to 20 months (average, 11±1.5 mo) and healed with no complication. The histopathological examinations of the skin lesions showed benign outcomes. The mean Vancouver Scar Scale were 1.1±0.4. Ideal cosmetic and functional outcomes were achieved in 94 patients (97.9%). All patients achieved complete satisfaction except 2 patients with partial satisfaction. No recurrences and complications were recorded. This study demonstrated that the punch technique is an effective method to remove facial pigmented melanocytic nevus with acceptable functional and esthetic outcomes without relapse.


Asunto(s)
Nevo Pigmentado , Neoplasias Cutáneas , Humanos , Adolescente , Adulto Joven , Adulto , Neoplasias Cutáneas/cirugía , Cicatriz/patología , Recurrencia Local de Neoplasia , Estética Dental , Nevo Pigmentado/cirugía
6.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-965580

RESUMEN

@#Abstract:Objective To analyse the level of measles antibody and serological susceptibility of the enterprise employees in Jin⁃ shan District,Shanghai in 2019,to provide references for measles prevention and control of enterprise employees. Methods A total of 1 796 employees were selected from 6 enterprises in Jinshan District by using a stratified random sampling method,of which serum samples from intravenous blood were collected and determined for IgG antibody level of measles by ELISA. Geo⁃ metric mean concentration(GMC)of measles IgG antibody,antibody positive rate and antibody protection rate were calculated and the susceptibility factors of measles in enterprise employees were analyzed by using the unconditional multivariate Logistic regression model. Results The GMC of measles antibody in 1 796 monitoring objects was 639. 71 mIU/mL,the positive rate was 87. 58% and the protection rate was 29. 06%. Multivariate Logistic regression analysis showed that the odds ratio(OR)of measles susceptibility was 1. 55(95% CI:1. 14 ~ 2. 12)in native subjects compared with non⁃resident subjects,while 2. 35 (95% CI:1. 35 ~ 4. 08)in subjects aged 40 ~ 49 years compared with those aged ≥ 50 years. Conclusion In 2019,the measles antibody level of enterprise employees in Jinshan District of Shanghai was low,and people aged 40 ~ 49,especially the nativeadults,wereathighriskofsusceptibilitytomeasles. Supplementaryimmunizationwithmeaslesvaccineshouldbecarried out for high⁃risk enterprise employees to reduce the risk of measles infection and control the epidemic situation of measles.

7.
PLoS One ; 17(9): e0273236, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36095013

RESUMEN

BACKGROUND: Routine laboratory investigations are not rapidly available to assist clinicians in the diagnosis of pediatric acute infections. Our objective was to evaluate some common blood parameters and use them for the differential diagnosis of childhood infections. METHODS: This retrospective study was conducted between October 2019 and September 2020 at Guangzhou Women and Children's Medical Center, China. We performed blood tests in patients infected with DNA viruses (n = 402), RNA viruses (n = 602), gram-positive organisms (G+; n = 421), gram-negative organisms (G-; n = 613), or Mycoplasma pneumoniae (n = 387), as well as in children without infection (n = 277). The diagnostic utility of blood parameters to diagnose various infections was evaluated by logistic regression analysis. RESULTS: The most common G+ organism, G- organism, and virus were Streptococcus pneumoniae (39.7%), Salmonella typhimurium (18.9%), and influenza A virus (40.2%), respectively. The value of logit (P) = 0.003 × C-reactive protein (CRP) - 0.011 × hemoglobin (HGB) + 0.001 × platelets (PLT) was significantly different between the control, RNA virus, DNA virus, M. pneumoniae, G- organism, and G+ organism groups (2.46 [95% CI, 2.41-2.52], 2.60 [2.58-2.62], 2.70 [2.67-2.72], 2.78 [2.76-2.81], 2.88 [2.85-2.91], and 2.97 [2.93-3.00], respectively; p = 0.00 for all). The logistic regression-based model showed significantly greater accuracy than the best single discriminatory marker for each group (logit [Pinfection] vs. CRP, 0.90 vs. 0.84, respectively; logit [PRNA] vs. lymphocytes, 0.83 vs. 0.77, respectively; p = 0.00). The area under curve values were 0.72 (0.70-0.74) for HGB and 0.81 (0.79-0.82) for logit (Pvirus/bacteria) to diagnose bacterial infections, whereas they were 0.72 (0.68-0.74) for eosinophils and 0.80 (0.78-0.82) for logit (Pvirus/bacteria) to diagnose viral infections. Logit (Pvirus/bacteria) < -0.45 discriminated bacterial from viral infection with 78.9% specificity and 70.7% sensitivity. CONCLUSIONS: The combination of CRP, HGB, PLT, eosinophil, monocyte, and lymphocyte counts can distinguish between the infectious pathogens in children.


Asunto(s)
Infecciones Bacterianas , Virosis , Bacterias , Infecciones Bacterianas/diagnóstico , Proteína C-Reactiva/análisis , Niño , Diagnóstico Diferencial , Humanos , Mycoplasma pneumoniae , Estudios Retrospectivos , Virosis/diagnóstico
8.
Front Immunol ; 13: 878457, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35619699

RESUMEN

Background: Infiltrating immune cells have been reported as prognostic markers in many cancer types. We aimed to evaluate the prognostic role of tumor-infiltrating lymphocytes, namely CD3+ T cells, CD8+ cytotoxic T cells and memory T cells (CD45RO+), in neuroblastoma. Patients and Methods: Immunohistochemistry was used to determine the expression of CD3, CD8 and CD45RO in the tumor samples of 244 neuroblastoma patients. We then used digital pathology to calculate the densities of these markers and derived an immunoscore based on such densities. Results: Densities of CD3+ and CD8+ T cells in tumor were positively associated with the overall survival (OS) and event-free survival (EFS), whereas density of CD45RO+ T cells in tumor was negatively associated with OS but not EFS. An immunoscore with low density of CD3 and CD8 (CD3-CD8-) was indictive of a greater risk of death (hazard ratio 6.39, 95% confidence interval 3.09-13.20) and any event (i.e., relapse at any site, progressive disease, second malignancy, or death) (hazard ratio 4.65, 95% confidence interval 2.73-7.93). Multivariable analysis revealed that the CD3-CD8- immunoscore was an independent prognostic indicator for OS, even after adjusting for other known prognostic indicators. Conclusions: The new immunoscore based on digital pathology evaluated densities of tumor-infiltrating CD3+ and CD8+ T cells contributes to the prediction of prognosis in neuroblastoma patients.


Asunto(s)
Recurrencia Local de Neoplasia , Neuroblastoma , Linfocitos T CD8-positivos , Humanos , Linfocitos Infiltrantes de Tumor , Recurrencia Local de Neoplasia/patología , Neuroblastoma/patología , Pronóstico
9.
Front Aging Neurosci ; 14: 814893, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35422695

RESUMEN

Researches using resting-state functional magnetic resonance imaging (rs-fMRI) have applied different regional measurements to study the intrinsic brain activity (IBA) of patients with Parkinson's disease (PD). Most previous studies have only examined the static characteristics of IBA in patients with PD, neglecting the dynamic features. We sought to explore the concordance between the dynamics of different rs-fMRI regional indices. This study included 31 healthy controls (HCs) and 57 PD patients to calculate the volume-wise (across voxels) and voxel-wise (across periods) concordance using a sliding time window approach. This allowed us to compare the concordance of dynamic alterations in frequently used metrics such as degree centrality (DC), global signal connectivity (GSC), voxel-mirrored heterotopic connectivity (VMHC), the amplitude of low-frequency fluctuations (ALFF), and regional homogeneity (ReHo). We analyzed the changes of concordance indices in the PD patients and investigated the relationship between aberrant concordance values and clinical/neuropsychological assessments in the PD patients. We found that, compared with the HCs, the PD patients had lower volume concordance in the whole brain and lower voxel-wise concordance in the posterior cerebellar lobe, cerebellar tonsils, superior temporal gyrus, and supplementary motor region. We also found negative correlations between these concordance alterations and patients' age. The exploratory results contribute to a better understanding of IBA alterations and pathophysiological mechanisms in PD.

10.
Z Gerontol Geriatr ; 55(6): 496-501, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34374861

RESUMEN

OBJECTIVE: To explore the differences in the features and impact on quality of life (QOL) of nonmotor symptoms (NMS) of the tremor dominant (TD) and non-tremor dominant (NTD) subtypes of Parkinson's disease (PD) and elucidate the characteristic NMS and determinants of QOL for the subtypes. METHODS: This cross-sectional study included 77 patients with PD. The NMS questionnaire was used to assess the range and prevalence of NMS. The modified Hoehn and Yahr staging and the unified PD rating scale (UPDRS) were used to assess symptom severity. Cognitive abilities were investigated using the mini-mental status examination (MMSE). Emotional state was assessed using the Hamilton depression scale (HAMD) and the Hamilton anxiety scale (HAMA) and QOL was evaluated using the Parkinson's disease questionnaire-39 (PDQ-39). RESULTS: Overall, 39 (50.65%) patients were classified as the TD subtype, and 38 (49.35%) were classified as the NTD subtype. Patients with NTD subtype presented a significantly higher number of NMS total scores (P = 0.007) and significantly higher score in the cognition domain of PDQ-39 (P = 0.021) than patients with TD subtype. Patients with NTD subtype had significantly higher NMS prevalence than patients with TD subtype with constipation (P = 0.021), incomplete bowel emptying (P = 0.050), anxiety (P = 0.030), daytime sleepiness (P = 0.017) and intense vivid dreams (P = 0.016). The predictors for the NTD subtype were intense vivid dreams (P = 0.012), anxiety (P = 0.030) and constipation (P = 0.044). The UPDRS, NMS total, and MMSE scores were the determinants of QOL in patients with PD (P < 0.05). CONCLUSION: The NMS is a prominent manifestation of PD. Patients with the NTD subtype had a higher prevalence of NMS than those with the TD subtype and intense vivid dreams, anxiety and constipation were characteristic of the NTD subtype. NMS is one of the important factors that determine the QOL of patients with PD especially those with the NTD subtype.


Asunto(s)
Enfermedad de Parkinson , Calidad de Vida , Estreñimiento/diagnóstico , Estreñimiento/epidemiología , Estudios Transversales , Humanos , Enfermedad de Parkinson/diagnóstico , Enfermedad de Parkinson/epidemiología , Calidad de Vida/psicología , Encuestas y Cuestionarios
11.
Chem Sci ; 12(38): 12619-12630, 2021 Oct 06.
Artículo en Inglés | MEDLINE | ID: mdl-34703547

RESUMEN

Chiral transcription from the molecular level to the macroscopic level by self-organization has been a topic of considerable interest for mimicking biological systems. Homochiral coordination polymers (CPs) are intriguing systems that can be applied in the construction of artificial helical architectures, but they have scarcely been explored to date. Herein, we propose a new strategy for the generation of superhelices of 1D CPs by introducing flexible cyclohexyl groups on the side chains to simultaneously induce interchain van der Waals interactions and chain misalignment due to conformer interconversion. Superhelices of S- or R-Tb(cyampH)3·3H2O (S-1H, R-1H) [cyampH2 = S- or R-(1-cyclohexylethyl)aminomethylphosphonic acid] were obtained successfully, the formation of which was found to follow a new type of "chain-twist-growth" mechanism that had not been described previously. The design strategy used in this work may open a new and general route to the hierarchical assembly and synthesis of helical CP materials.

12.
Eur Neurol ; 84(5): 368-374, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34134116

RESUMEN

OBJECTIVES: Studies documenting the association between rapid eye movement sleep behavior disorder (RBD) and subtypes of multiple system atrophy (MSA) are rare. In this study, we investigated the presence of clinical RBD in MSA patients and compared the prevalence and severity of RBD in patients with MSA-P and MSA-C subtypes. METHODS: We evaluated 54 consecutive patients presenting with MSA and hospitalized in the neurology ward of Beijing Hospital from February 2012 to June 2020. The healthy control (HC) group consisted of 100 healthy individuals who came to our hospital for physical examination. The clinical diagnosis of RBD was based on the minimal diagnostic criteria of International Classification of Sleep Disorders, revised. The severity of clinical RBD was rated on a digital scale from 0 to 3. The patients were divided into 2 subgroups: MSA-P and MSA-C. The MSA and HC groups were compared in terms of frequency of clinical RBD. The MSA-P and MSA-C subgroups were compared with each other for age, sex, onset age, disease duration, and features of clinical RBD. The correlation between severity of clinical RBD and clinical characteristics of MSA was analyzed in the patient groups. RESULTS: The frequency of clinical RBD in MSA and HC groups was 70.4% (38/54) and 5% (5/100), respectively. The difference between 2 groups was significant (χ2 = 74.453, p = 0.000). Among the patients, 57.4% (31/54) had the MSA-P subtype. There were no significant differences between MSA-P and MSA-C subtypes in the prevalence (χ2 = 1.734, p = 0.188) and severity (χ2 = 1.776, p = 0.412) of clinical RBD. The onset of clinical RBD during the premotor period was not different between the subtypes of MSA, either in patients' number of preceding the onset of motor symptoms (χ2 = 0.581, p = 0.446) or the preceding time (Z = -0.550, p = 0.582). For the MSA-C patients, there was a negative correlation between the score of severity of the RBD scale and RBD preceding motor symptoms (r = -0.482, p = 0.020). CONCLUSION: In our study, the prevalence of clinical RBD is unrelated to the subtypes of MSA. The onset of clinical RBD during the premotor period was not different between subtypes of MSA. However, we found that the severity of RBD occurring before the motor symptoms was more than that occurring after the motor symptoms in MSA-C patients. Our results showed that MSA-P and MSA-C patients may have a probable indicator for the similar pathologic mechanism of the disease and its sleep problems.


Asunto(s)
Atrofia de Múltiples Sistemas , Trastorno de la Conducta del Sueño REM , Humanos , Atrofia de Múltiples Sistemas/complicaciones , Atrofia de Múltiples Sistemas/epidemiología , Prevalencia , Trastorno de la Conducta del Sueño REM/diagnóstico , Trastorno de la Conducta del Sueño REM/epidemiología , Encuestas y Cuestionarios
13.
Front Neurol ; 12: 619631, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34054684

RESUMEN

Objective: The striatum is unevenly impaired bilaterally in Parkinson's disease (PD). Because the striatum plays a key role in cortico-striatal circuits, we assume that lateralization affects cortico-striatal functional connectivity in PD. The present study sought to evaluate the effect of lateralization on various cortico-striatal circuits through resting-state functional magnetic resonance imaging (fMRI). Methods: Thirty left-onset Parkinson's disease (LPD) patients, 27 right-onset Parkinson's disease (RPD) patients, and 32 normal controls with satisfactory data were recruited. Their demographic, clinical, and neuropsychological information was collected. Resting-state fMRI was performed, and functional connectivity changes of seven subdivisions of the striatum were explored in the two PD groups. In addition, the associations between altered functional connectivity and various clinical and neuropsychological characteristics were analyzed by Pearson's or Spearman's correlation. Results: Directly comparing the LPD and RPD patients demonstrated that the LPD patients had lower FC between the left dorsal rostral putamen and the left orbitofrontal cortex than the RPD patients. In addition, the LPD patients showed aberrant functional connectivity involving several striatal subdivisions in the right hemisphere. The right dorsal caudate, ventral rostral putamen, and superior ventral striatum had decreased functional connectivity with the cerebellum and parietal and occipital lobes relative to the normal control group. The comparison between RPD patients and the controls did not obtain significant difference in functional connectivity. The functional connectivity between the left dorsal rostral putamen and the left orbitofrontal cortex was associated with contralateral motor symptom severity in PD patients. Conclusions: Our findings provide new insights into the distinct characteristics of cortico-striatal circuits in LPD and RPD patients. Lateralization of motor symptoms is associated with lateralized striatal functional connectivity.

14.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 52(3): 467-471, 2021 May.
Artículo en Chino | MEDLINE | ID: mdl-34018366

RESUMEN

OBJECTIVE: To investigate the status of infections caused by respiratory pathogens and the patterns of infections caused by pathogens in different seasons, age groups and stages of pneumoconiosis so as to explore the pathogen spectrum of respiratory tract infections in pneumoconiosis patients. METHODS: The sputum samples of 376 pneumoconiosis patients admitted to an occupational disease hospital in Chengdu between January, 2017 and October, 2019 were collected. Clinical information of the patients was collected and lab tests were conducted to check for 23 kinds of common respiratory viruses, bacteria and fungi in the sputum. The relationship between seasons, ages, and different stages of pneumoconiosis and the pathogen detection rate was analyzed. RESULTS: In the 376 sputum samples, the detection rates of pathogens, viruses, bacteria and fungi were 42.29% (159/376), 32.98% (124/376), 9.57% (36/376) and 6.12% (23/376), respectively. The six pathogens with the highest detection rates were parainfluenza virus, rhinovirus, influenza virus, Candida albicans, Klebsiella pneumoniae and Candida krousei. The severity of respiratory tract infection did not show significant difference in different seasons, age groups, and pneumoconiosis stages. CONCLUSION: The pathogen spectrum of respiratory tract infections in patients with pneumoconiosis is complicated and the proportion of viral infection is high. However, the severity of the infection is not associated with age, seasonal, or pneumoconiosis staging differences.


Asunto(s)
Neumoconiosis , Infecciones del Sistema Respiratorio , Bacterias , Humanos , Lactante , Pacientes Internos , Neumoconiosis/epidemiología , Infecciones del Sistema Respiratorio/epidemiología , Estaciones del Año
15.
PLoS One ; 16(3): e0248750, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33750952

RESUMEN

BACKGROUND: Severe acute respiratory infection (SARI) results in a tremendous disease burden worldwide. Available research on active surveillance among hospitalized adult patients suffering from SARI in China is limited. This pilot study aimed to identify associated etiologies and describe the demographic, epidemiological and clinical profiles of hospitalized SARI patients aged over 16 years in Jinshan, Shanghai. METHODS: Active surveillance was conducted at 1 sentinel hospital in Jinshan district, Shanghai, from April 2017 to March 2018. Hospitalized SARI patients aged over 16 years old were enrolled, and nasopharyngeal swabs were collected within 24 hours of admission and tested for multiple respiratory viruses (including 18 common viruses) and Mycoplasma pneumoniae with real-time polymerase chain reaction. Demographic, epidemiological and clinical information was obtained from case report forms. RESULTS: In total, 397 SARI patients were enrolled; the median age was 68 years, and 194 (48.9%) patients were male. A total of 278 (70.0%) patients had at least one underlying chronic medical condition. The most frequent symptoms were cough (99.2%) and sputum production (88.4%). The median duration of hospitalization was 10 days. A total of 250 infection patients (63.0%) were positive for at least one pathogen, of whom 198 (49.9%) were positive for a single pathogen and 52 (13.1%) were positive for multiple pathogens. The pathogens identified most frequently were M. pneumoniae (23.9%, 95/397), followed by adenovirus (AdV) (11.6%, 46/397), influenza virus A/H3N2 (Flu A/H3N2) (11.1%, 44/397), human rhinovirus (HRhV) (8.1%, 32/397), influenza virus B/Yamagata (Flu B/Yamagata) (6.3%, 25/397), pandemic influenza virus A/H1N1 (Flu A/pH1N1) (4.0%, 16/397), parainfluenza virus (PIV) type 1 (2.0%, 8/397), human coronavirus (HCoV) type NL63 (2.0%, 8/397), HCoV 229E (1.5%, 6/397), HCoV HKU1 (1.5%, 6/397), PIV 3 (1.5%, 6/397), human metapneumovirus (HMPV) (1.5%, 6/397), PIV 4 (1.3%, 5/397), HCoV OC43 (1.0%, 4/397), influenza virus B/Victoria (Flu B/Victoria) (0.5%, 2/397), respiratory syncytial virus (RSV) type B (0.5%, 2/397), and human bocavirus (HBoV) (0.3%, 1/397). The seasonality of pathogen-confirmed SARI patients had a bimodal distribution, with the first peak in the summer and the second peak in the winter. Statistically significant differences were observed with respect to the rates of dyspnea, radiographically diagnosed pneumonia and the presence of at least one comorbidity in patients who were infected with only M. pneumoniae, AdV, HRhV, Flu A/H3N2, Flu A /pH1N1 or Flu B/Yamagata. The differences in the positivity rates of the above 6 pathogens among the different age groups were nonsignificant. CONCLUSIONS: M. pneumoniae, AdV and Flu A/H3N2 were the main pathogens detected in hospitalized SARI patients aged over 16 years old in Jinshan district, Shanghai. Our findings highlight the importance of sustained multipathogen surveillance among SARI patients in sentinel hospitals, which can provide useful information on SARI etiologies, epidemiology, and clinical characteristics.


Asunto(s)
Virus ADN/aislamiento & purificación , Mycoplasma pneumoniae/aislamiento & purificación , Virus ARN/aislamiento & purificación , Infecciones del Sistema Respiratorio/diagnóstico , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Antibacterianos/uso terapéutico , China , Tos/etiología , Femenino , Glucocorticoides/uso terapéutico , Hospitales , Humanos , Masculino , Persona de Mediana Edad , Nasofaringe/microbiología , Nasofaringe/virología , Proyectos Piloto , Pronóstico , Infecciones del Sistema Respiratorio/tratamiento farmacológico , Infecciones del Sistema Respiratorio/microbiología , Infecciones del Sistema Respiratorio/virología , Adulto Joven
16.
Fa Yi Xue Za Zhi ; 37(5): 653-660, 2021 Oct 25.
Artículo en Inglés, Chino | MEDLINE | ID: mdl-35187917

RESUMEN

OBJECTIVES: To explore the possible mechanism of Yunaconitine poisoning by studying the changes of urine metabolic profile in rats chronically poisoned by Yunaconitine via non-targeted metabolomics. METHODS: A rat model of Yunaconitine poisoning was established, and a metabolomics method based on UPLC-QTOF-MS technology was used to obtain the urine metabolic profile. Principal component analysis (PCA), orthogonal projections to latent structures-discriminant analysis (OPLS-DA), variable importance in projection (VIP) value greater than 1, fold change (FC) value greater than 3 or less than 0.33 and P value less than 0.05 were used to screen potential biomarkers related to the toxicity of Yunaconitine. The metabolic pathway analysis was performed through the MetaboAnalyst website and pathological changes of related tissues were observed. RESULTS: Sixteen potential biomarkers including L-isoleucine were screened, which mainly involved six metabolic pathways including the biosynthesis and degradation of valine, leucine and isoleucine, pentose and glucuronate interconversions, and propanoate metabolism, alanine, aspartate and glutamate metabolism, tyrosine metabolism. Pathological studies showed that rat toxic change in nervous system, liver and cardiac caused by Yunaconitine. CONCLUSIONS: Yunaconitine may cause neurotoxicity, hepatotoxicity and cardiotoxicity by affecting amino acid and glucose metabolism.


Asunto(s)
Metaboloma , Metabolómica , Aconitina/análogos & derivados , Animales , Biomarcadores/metabolismo , Cromatografía Líquida de Alta Presión , Ratas
17.
Parkinsons Dis ; 2020: 5146253, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32676180

RESUMEN

OBJECTIVE: Motor symptoms are usually asymmetric in Parkinson's disease (PD), and asymmetry in PD may involve widespread brain areas. We sought to evaluate the effect of asymmetry on the whole brain spontaneous activity using the measure regional homogeneity (ReHo) through resting-state functional MRI. METHODS: We recruited 30 PD patients with left onset (LPD), 27 with right side (RPD), and 32 controls with satisfactory data. Their demographic, clinical, and neuropsychological information were obtained. Resting-state functional MRI was performed, and ReHo was used to determine the brain activity. ANCOVA was utilized to analyze between-group differences in ReHo and the associations between abnormal ReHo, and various clinical and neuropsychological variables were explored by Spearman's correlation. RESULTS: LPD patients had higher ReHo in the right temporal pole than the controls. RPD patients had increased ReHo in the right temporal pole and decreased ReHo in the primary motor cortex and premotor area, compared with the controls. Directly comparing LPD and RPD patients did not show a significant difference in ReHo. ReHo of the right temporal pole was significantly correlated with depression and anxiety in RPD patients. CONCLUSIONS: Both LPD and RPD have increased brain activity synchronization in the right temporal pole, and only RPD has decreased brain activity synchronization in the right frontal motor areas. The changed brain activity in the right temporal pole may play a compensatory role for depression and anxiety in PD, and the altered cerebral function in the right frontal motor area in RPD may represent the reorganization of the motor system in RPD.

18.
BMC Health Serv Res ; 20(1): 114, 2020 Feb 12.
Artículo en Inglés | MEDLINE | ID: mdl-32050951

RESUMEN

BACKGROUND: The study's purpose was to examine the effectiveness of different reminder strategies on first-time free mammography screening among middle-aged women in Taiwan. METHODS: A quasi-experimental design with random assignment was adopted to divide the participants into three Reminder Strategies groups (mail reminder, telephone reminder, and combined mail and telephone reminders) and one control group. This study recruited 240 eligible middle-aged women, and 205 of them completed the study. Upon the completion of data collection, mail reminders were provided to women of the first group; telephone reminders were provided to the second group; mail followed by telephone reminders were provided to the third group, and the usual postcards were provided to the control group 1 month after the interventions. Two follow-up assessments were conducted 1 and 3 months after the intervention to collect mammography-screening behaviors from all groups. RESULTS: The findings showed that, compared to the control group, more participants in the intervention groups underwent mammography screening after receiving reminder interventions. Telephone contact as reminder was found to have the most significant influence among the interventions (OR = 5.0556; 95% CI = 2.0422-13.5722). CONCLUSIONS: Government and healthcare providers are recommended to consider adopting the telephone reminder strategy to encourage women to undergo their first-time mammography screening.


Asunto(s)
Detección Precoz del Cáncer/estadística & datos numéricos , Mamografía/estadística & datos numéricos , Sistemas Recordatorios , Neoplasias de la Mama/prevención & control , Femenino , Humanos , Persona de Mediana Edad , Taiwán , Teléfono
19.
Cogn Behav Neurol ; 32(4): 247-255, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31800485

RESUMEN

BACKGROUND: Individuals with Parkinson disease (PD) display cognitive dysfunction. However, few studies have investigated how facial and musical emotion recognition are affected in individuals with PD. OBJECTIVE: To explore the relationship between facial and musical emotion recognition and executive functions in Chinese individuals with PD. METHODS: We showed 40 Chinese individuals with PD and 40 Chinese healthy controls 24 black-and-white portraits and 24 musical excerpts that were designed to express happiness, sadness, fear, and anger. Then, we used four tests to assess the participants' executive functions, including the Trail Making Test (TMT), Clock Drawing Test (CDT), semantic Verbal Fluency Test (VFT), and Digit Span Test (DST). RESULTS: The PD group showed significant impairment in recognizing anger from facial expressions, although their emotion recognition from musical excerpts was similar to that of the control group. Recognition of an angry face was significantly correlated to scores on the TMT and DST. Recognition of happy music was significantly correlated to the Hamilton Rating Scale for Depression score, whereas recognition of angry music was significantly correlated to musical knowledge background. Recognition of happy, sad, or angry music was significantly correlated to tests of executive function, whereas recognition of fearful music was not. CONCLUSIONS: The PD group showed impaired recognition of angry faces, which may be related to executive dysfunction. However, the PD group did not show any difficulties in recognizing emotions in music. This dissociation indicates that the mechanisms underlying the recognition of emotions in faces and music are partly independent.


Asunto(s)
Emociones/fisiología , Función Ejecutiva/fisiología , Enfermedad de Parkinson/psicología , Reconocimiento en Psicología/fisiología , Anciano , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad
20.
ACS Appl Mater Interfaces ; 10(50): 43946-43952, 2018 Dec 19.
Artículo en Inglés | MEDLINE | ID: mdl-30475571

RESUMEN

A lithium ion capacitor (LIC) is a hybrid energy storage device that combines the energy storage mechanism of lithium ion batteries and supercapacitors and presents their complementary features. However, imbalances of the capacity and kinetics between cathode and anode still remain challenges. Herein, to address the issue of low capacity in the cathode, we constructed a morning glory like porous material crimped from an opening sandwich structure consisting of a hard carbon inner layer and soft carbon outer layer, by coating graphene oxide containing flaky phenolic resin with coal tar pitch followed by carbonization and activation. Both the hard@soft carbon integrated design and the reduced graphene oxide network cocontributed to a favorable electrical conductivity and a developed microporosity. To deal with the sluggish kinetics limitation of the anode, a structure-optimized MnO@C electrode prepared by pore creation of CO2 from an MnCO3@polydopamine precursor was chosen due to its excellent rate performance. The LIC with this configuration can deliver a maximum energy density of 117.6 Wh kg-1 and an favorable capacity retention of 76% after 3000 cycles at 2050 W kg-1. Furthermore, the energy density of 27.8 Wh kg-1 can still be delivered even at a high power density of 10250 W kg-1. In general, this well-designed hybrid capacitor has a potential to make up the gap between lithium ion batteries and supercapacitors.

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