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1.
Carcinogenesis ; 2024 Aug 08.
Artículo en Inglés | MEDLINE | ID: mdl-39113410

RESUMEN

As a preventable disease, cervical cancer (cervical squamous cell carcinoma and endocervical adenocarcinoma - CESC) remains a tumor with high morbidity and mortality worldwide, underscoring the pressing need for effective treatment strategies. This research identified Golgi transport 1B (GOLT1B) as a critical gene involved in the development of cervical cancer. Gene Expression Omnibus (GEO) datasets were investigated to determine the upregulation of GOLT1B in cervical cancer tissue compared to normal tissue. Besides, GOLT1B was found to predict poor prognosis in cervical cancer by utilizing Gene Expression Profiling Interactive Analysis (GEPIA). The functional assay indicated that GOLT1B promoted CESC viability and migration in vitro and in vivo. RNA sequencing results suggested that GOLT1B likely influenced NF-κB pathway. The subsequent western blot and dual luciferase reporter assay revealed the interaction between GOLT1B and TBK1, modulating the NF-κB pathway. More importantly, GOLT1B was also found to regulate immune cells infiltration, suggesting its potential role in tumor microenvironment. In conclusion, GOLT1B promotes CESC progression via interaction with TBK1 and augmentation of NF-κB signaling-mediated cancer-associated inflammation, which provides us a new approach to CESC target therapy.

2.
Natl Sci Rev ; 11(8): nwae233, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39119219

RESUMEN

Platinum-based intermetallic compounds (IMCs) play a vital role as electrocatalysts in a range of energy and environmental technologies, such as proton exchange membrane fuel cells. However, the synthesis of IMCs necessitates recombination of ordered Pt-M metallic bonds with high temperature driving, which is generally accompanied by side effects for catalysts' structure and performance. In this work, we highlight that semimetal atoms can trigger covalent interactions to break the synthesis-temperature limitation of platinum-based intermetallic compounds and benefit fuel-cell electrocatalysis. Attributed to partial fillings of p-block in semimetal elements, the strong covalent interaction of d-p π backbonding can benefit the recombination of ordered Pt-M metallic bonds (PtGe, PtSb and PtTe) in the synthesis process. Moreover, this covalent interaction in metallic states can further promote both electron transport and orbital fillings of active sites in fuel cells. The semimetal-Pt IMCs were obtained with a temperature 300 K lower than that needed for the synthesis of metal-Pt intermetallic compounds and reached the highest CO-tolerant oxygen reduction activity (0.794 A mg-1 at 0.9 V and 5.1% decay under CO poisoning) among reported electrocatalysts. We anticipate that semimetal-Pt IMCs will offer new insights for the rational design of advanced electrocatalysts for fuel cells.

3.
Cancer Lett ; 598: 217130, 2024 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-39089666

RESUMEN

PURPOSE: Cholesterol metabolism reprograming has been acknowledged as a novel feature of cancers. Pancreatic ductal adenocarcinoma (PDAC) is a cancer with a high demand of cholesterol for rapid growth. The underlying mechanism of how cholesterol metabolism homestasis are disturbed in PDAC is explored. EXPERIMENTAL DESIGN: The relevance between PDAC and cholesterol was confirmed in TCGA database. The expression and clinical association were discovered in TCGA and GEO datasets. Knockdown and overexpression of AGFG1 was adopted to perform function studies. RNA sequencing, cholesterol detection, transmission electron microscope, co-immunoprecipitation, and immunofluorescence et al. were utilized to reveal the underlying mechanism. RESULTS: AGFG1 was identified as one gene positively correlated with cholesterol metabolism in PDAC as revealed by bioinformatics analysis. AGFG1 expression was then found associated with poor prognosis in PDAC. AGFG1 knockdown led to decreased proliferation of tumor cells both in vitro and in vivo. By RNA sequencing, we found AGFG1 upregulated expression leads to enhanced intracellular cholesterol biosynthesis. AGFG1 knockdown suppressed cholesterol biosynthesis and an accumulation of cholesterol in the ER. Mechanistically, we confirmed that AGFG1 interacted with CAV1 to relocate cholesterol for the proceeding of cholesterol biosynthesis, therefore causing disorders in intracellular cholesterol metabolism. CONCLUSIONS: Our study demonstrates the tumor-promoting role of AGFG1 by disturbing cholesterol metabolism homestasis in PDAC. Our study has present a new perspective on cancer therapeutic approach based on cholerstrol metabolism in PDAC.


Asunto(s)
Carcinoma Ductal Pancreático , Proliferación Celular , Colesterol , Homeostasis , Neoplasias Pancreáticas , Humanos , Colesterol/metabolismo , Colesterol/biosíntesis , Carcinoma Ductal Pancreático/patología , Carcinoma Ductal Pancreático/metabolismo , Carcinoma Ductal Pancreático/genética , Neoplasias Pancreáticas/patología , Neoplasias Pancreáticas/metabolismo , Neoplasias Pancreáticas/genética , Animales , Línea Celular Tumoral , Ratones , Regulación Neoplásica de la Expresión Génica , Progresión de la Enfermedad , Pronóstico , Caveolina 1/genética , Caveolina 1/metabolismo , Ratones Desnudos , Masculino
4.
Cell Rep ; 43(8): 114633, 2024 Aug 27.
Artículo en Inglés | MEDLINE | ID: mdl-39154343

RESUMEN

Pancreatic ductal adenocarcinoma (PDAC) features substantial matrix stiffening and reprogrammed glucose metabolism, particularly the Warburg effect. However, the complex interplay between these traits and their impact on tumor advancement remains inadequately explored. Here, we integrated clinical, cellular, and bioinformatics approaches to explore the connection between matrix stiffness and the Warburg effect in PDAC, identifying CLIC1 as a key mediator. Elevated CLIC1 expression, induced by matrix stiffness through Wnt/ß-catenin/TCF4 signaling, signifies poorer prognostic outcomes in PDAC. Functionally, CLIC1 serves as a catalyst for glycolytic metabolism, propelling tumor proliferation. Mechanistically, CLIC1 fortifies HIF1α stability by curbing hydroxylation via reactive oxygen species (ROS). Collectively, PDAC cells elevate CLIC1 levels in a matrix-stiffness-responsive manner, bolstering the Warburg effect to drive tumor growth via ROS/HIF1α signaling. Our insights highlight opportunities for targeted therapies that concurrently address matrix properties and metabolic rewiring, with CLIC1 emerging as a promising intervention point.


Asunto(s)
Carcinoma Ductal Pancreático , Proliferación Celular , Canales de Cloruro , Subunidad alfa del Factor 1 Inducible por Hipoxia , Neoplasias Pancreáticas , Efecto Warburg en Oncología , Humanos , Neoplasias Pancreáticas/patología , Neoplasias Pancreáticas/metabolismo , Neoplasias Pancreáticas/genética , Canales de Cloruro/metabolismo , Canales de Cloruro/genética , Línea Celular Tumoral , Animales , Subunidad alfa del Factor 1 Inducible por Hipoxia/metabolismo , Ratones , Carcinoma Ductal Pancreático/patología , Carcinoma Ductal Pancreático/metabolismo , Carcinoma Ductal Pancreático/genética , Especies Reactivas de Oxígeno/metabolismo , Glucólisis , Ratones Desnudos , Matriz Extracelular/metabolismo , Regulación Neoplásica de la Expresión Génica
5.
Heliyon ; 10(13): e33581, 2024 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-39091928

RESUMEN

Background: Primary Carnitine Deficiency (PCD) is a potentially life-threatening autosomal recessive monogenic disorder arising from mutations in the organic cation transporter 2 (OCTN2) gene. Dilated cardiomyopathy (DCM) is a prevalent symptom associated with this condition, and episodes of metabolic disturbance may lead to sudden death. However, the pathogenic mechanism remains unclear. Here, we sought to investigate the response of cardiomyocytes and alterations in the intercellular communication in individuals with PCD DCM. Methods: The GSE211650 dataset was downloaded. Subsequently, modular analysis was performed using hdWGCNA. SCENIC was employed for transcription factor analysis. Monocle2 and SCP were applied to conduct trajectory inference and characterize dynamic features. CellChat was used to investigate intercellular interactions. Results: OCTN2-deficient cardiomyocytes displayed transcriptomic alterations indicative of reduced contractility, developmental abnormalities, and fibrosis. The reduced expression of genes encoding troponin, myosin, and calcium ion transporters may underlie the observed decrease in contractility. Suppressed Wnt signaling and downregulated transcription factors associated with myocardial development suggest potential developmental disturbances in cardiomyocytes. Growth arrest-specific 6 (GAS6) secreted by TNNC1 high cardiomyocytes is implicated in myocardial inflammation and fibrosis. Macrophages-derived secreted phosphoprotein 1 (SPP1) promotes the activation of fibroblasts. Furthermore, there was a reduction in neuronal genes in the OCTN2-deficient group. Conclusions: Our research has unveiled, for the first time, the responses of cardiomyocytes and alterations in the intercellular communication in PCD DCM, offering valuable insights for the precision treatment of this condition.

6.
Cancer Cell Int ; 24(1): 262, 2024 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-39048994

RESUMEN

BACKGROUND: This study investigated the molecular mechanism of long intergenic non-protein coding RNA 1605 (LINC01605) in the process of tumor growth and liver metastasis of pancreatic ductal adenocarcinoma (PDAC). METHODS: LINC01605 was filtered out with specificity through TCGA datasets (related to DFS) and our RNA-sequencing data of PDAC tissue samples from Renji Hospital. The expression level and clinical relevance of LINC01605 were then verified in clinical cohorts and samples by immunohistochemical staining assay and survival analysis. Loss- and gain-of-function experiments were performed to estimate the regulatory effects of LINC01605 in vitro. RNA-seq of LINC01605-knockdown PDAC cells and subsequent inhibitor-based cellular function, western blotting, immunofluorescence and rescue experiments were conducted to explore the mechanisms by which LINC01605 regulates the behaviors of PDAC tumor cells. Subcutaneous xenograft models and intrasplenic liver metastasis models were employed to study its role in PDAC tumor growth and liver metastasis in vivo. RESULTS: LINC01605 expression is upregulated in both PDAC primary tumor and liver metastasis tissues and correlates with poor clinical prognosis. Loss and gain of function experiments in cells demonstrated that LINC01605 promotes the proliferation and migration of PDAC cells in vitro. In subsequent verification experiments, we found that LINC01605 contributes to PDAC progression through cholesterol metabolism regulation in a LIN28B-interacting manner by activating the mTOR signaling pathway. Furthermore, the animal models showed that LINC01605 facilitates the proliferation and metastatic invasion of PDAC cells in vivo. CONCLUSIONS: Our results indicate that the upregulated lncRNA LINC01605 promotes PDAC tumor cell proliferation and migration by regulating cholesterol metabolism via activation of the mTOR signaling pathway in a LIN28B-interacting manner. These findings provide new insight into the role of LINC01605 in PDAC tumor growth and liver metastasis as well as its value for clinical approaches as a metabolic therapeutic target in PDAC.

7.
Gene ; 927: 148735, 2024 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-38944166

RESUMEN

BACKGROUND: OCIAD2(Ovarian carcinoma immunoreactive antigen-like protein 2) is a protein reported in various cancers. However, the role of OCIAD2 has not been explored in pan-cancer datasets. The purpose of this research lies in analyzing the expression level and prognostic-related value of OCIAD2 in different human cancers, as well as revealing the underlying mechanism in specific cancer type (pancreatic adenocarcinoma, PAAD). METHODS: The correlation between OCIAD2 expression level and clinical relevance in different human cancers was investigated from bioinformatical perspective (GTEx and TCGA). The OCIAD2 expression level and clinical significance in PAAD were explored in GEO datasets and tissue microarray. Functional experiments were used to determine the OCIAD2 cell functions in vitro and in vivo. GSEA, western blot and immunohistochemistry were used to uncover the potential mechanism. RESULTS: OCIAD2 expression level was closely correlated with clinical relevance in many cancer types through pan-cancer analysis, and we found OCIAD2 was highly expressed in PAAD and associated with poorer prognosis. OCIAD2 acted as the promotor of Warburg effect and influenced PAAD cells proliferation, migration and apoptosis. Mechanistically, OCIAD2 upregulation may boost glycolysis in PAAD via activating the AKT signaling pathway in PAAD. CONCLUSIONS: In PAAD, OCIAD2 promotes Warburg effect via AKT signaling pathway and targeting cancer cells metabolic reprogramming could be a potential treatment.


Asunto(s)
Proteínas de Neoplasias , Neoplasias Pancreáticas , Proteínas Proto-Oncogénicas c-akt , Transducción de Señal , Animales , Femenino , Humanos , Masculino , Ratones , Adenocarcinoma/genética , Adenocarcinoma/patología , Adenocarcinoma/metabolismo , Apoptosis , Línea Celular Tumoral , Movimiento Celular , Proliferación Celular , Progresión de la Enfermedad , Regulación Neoplásica de la Expresión Génica , Neoplasias Pancreáticas/genética , Neoplasias Pancreáticas/patología , Neoplasias Pancreáticas/metabolismo , Pronóstico , Proteínas Proto-Oncogénicas c-akt/metabolismo , Regulación hacia Arriba , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/metabolismo
8.
Int J Neonatal Screen ; 10(2)2024 Mar 29.
Artículo en Inglés | MEDLINE | ID: mdl-38651393

RESUMEN

The aim of this study was to observe the outcomes of newborn screening (NBS) in a certain population by using next-generation sequencing (NGS) as a first-tier screening test combined with tandem mass spectrometry (MS/MS). We performed a multicenter study of 29,601 newborns from eight screening centers with NBS via NGS combined with MS/MS. A custom-designed panel targeting the coding region of the 142 genes of 128 inborn errors of metabolism (IEMs) was applied as a first-tier screening test, and expanded NBS using MS/MS was executed simultaneously. In total, 52 genes associated with the 38 IEMs screened by MS/MS were analyzed. The NBS performance of these two methods was analyzed and compared respectively. A total of 23 IEMs were diagnosed via NGS combined with MS/MS. The incidence of IEMs was approximately 1 in 1287. Within separate statistical analyses, the positive predictive value (PPV) for MS/MS was 5.29%, and the sensitivity was 91.3%. However, for genetic screening alone, the PPV for NGS was 70.83%, with 73.91% sensitivity. The three most common IEMs were methylmalonic academia (MMA), primary carnitine deficiency (PCD) and phenylketonuria (PKU). The five genes with the most common carrier frequencies were PAH (1:42), PRODH (1:51), MMACHC (1:52), SLC25A13 (1:55) and SLC22A5 (1:63). Our study showed that NBS combined with NGS and MS/MS improves the performance of screening methods, optimizes the process, and provides accurate diagnoses.

9.
Materials (Basel) ; 17(5)2024 Feb 29.
Artículo en Inglés | MEDLINE | ID: mdl-38473590

RESUMEN

Transition metals and their oxide compounds exhibit excellent chemical reactivity; however, their easy agglomeration and high cost limit their catalysis applications. In this study, an interpolation structure of a Myriophyllum verticillatum L. biochar-supported Mn/Mg composite (Mn/Mg@MV) was prepared to degrade triphenyl phosphate (TPhP) from wastewater through the activating periodate (PI) process. Interestingly, the Mn/Mg@MV composite showed strong radical self-producing capacities. The Mn/Mg@MV system degraded 93.34% TPhP (pH 5, 10 µM) within 150 min. The experimental results confirmed that the predominant role of IO3· and the auxiliary ·OH jointly contributed to the TPhP degradation. In addition, the TPhP pollutants were degraded to various intermediates and subsequent Mg mineral phase mineralization via mechanisms like interfacial processes and radical oxidation. DFT theoretical calculations further indicated that the synergy between Mn and Mg induced the charge transfer of the carbon-based surface, leading to the formation of an ·OH radical-enriched surface and enhancing the multivariate interface process of ·OH, IO3, and Mn(VII) to TPhP degradation, resulting in the further formation of Mg PO4 mineralization.

10.
J Am Chem Soc ; 146(8): 5274-5282, 2024 Feb 28.
Artículo en Inglés | MEDLINE | ID: mdl-38363827

RESUMEN

The practical application of the H2/O2 proton-exchange membrane fuel cell (PEMFC) is being greatly limited by the use of high-cost Pt as electrode catalysts. Furthermore, the H2/O2 PEMFC is nonrechargeable and thus precludes kinetics energy recovery when equipped on electric vehicles and peak power regulation when combined to power grids. Here, we demonstrate a rechargeable H2/O2 PEMFC through embedding a redox flow battery into a conventional H2/O2 PEMFC. This flow battery employs H2/O2 reactive redox pairs such as NO3-/NO-Br2/Br- and H4SiW12O40/H5SiW12O40 whose redox potentials are as close as possible to those of O2/H2O and H2/H2O, respectively, so that the chemical potential losses during their reactions with O2 at the cathode and H2 at the anode were minimized. More importantly, the electrochemical reversibility allows the H2/O2 reacted redox pairs to be easily regenerated through fuel cell discharging on catalyst-free carbon electrodes at a low overpotential and brings in the fuel cell both chemical and electrical rechargeability, thereby realizing integrated functions of electricity generation- storage as well as efficient operation (achieving an open-circuit potential of 0.96 V and a peak power density of 0.57 W/cm2, which are comparable to a conventional H2/air PEMFC) with catalyst-free carbon electrodes.

11.
Microorganisms ; 12(2)2024 Jan 26.
Artículo en Inglés | MEDLINE | ID: mdl-38399664

RESUMEN

The plum rain season is a special climatic phenomenon in east Asia, which is characterized by persistent rainfall, a high temperature, and humidity, providing suitable environmental conditions for certain pathogenic bacteria, thus increasing the incidence of respiratory, gastrointestinal, and urinary diseases. However, studies on human opportunistic pathogenic bacteria communities during the plum rain season are still limited. In this study, the characteristics of human opportunistic pathogenic bacterial communities on daily necessities during the non-plum and plum rain seasons were investigated using high-throughput sequencing technology. The results revealed that the relative abundance of human opportunistic pathogenic bacteria was higher in the plum rain season (cotton cloth: 2.469%, electric bicycles: 0.724%, rice: 3.737%, and washbasins: 5.005%) than in the non-plum rain season (cotton cloth: 1.425%, electric bicycles: 0.601%, rice: 2.426%, and washbasins: 4.801%). Both temperature and relative humidity affected human opportunistic pathogenic bacterial communities. Stochastic processes dominated the assembly process of human opportunistic pathogenic bacterial communities, and undominated processes prevailed. The stability of the co-occurrence network was higher in the non-plum rain season than that in the plum rain season. In addition, the proportion of deterministic processes showed the same trend as the complexity of the co-occurrence network.

12.
J Clin Oncol ; 42(9): 1077-1087, 2024 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-38113419

RESUMEN

PURPOSE: About a third of patients with relapsed or refractory classic Hodgkin lymphoma (r/r CHL) succumb to their disease after high-dose chemotherapy followed by autologous stem-cell transplantation (HDC/ASCT). Here, we aimed to describe spatially resolved tumor microenvironment (TME) ecosystems to establish novel biomarkers associated with treatment failure in r/r CHL. PATIENTS AND METHODS: We performed imaging mass cytometry (IMC) on 71 paired primary diagnostic and relapse biopsies using a marker panel specific to CHL biology. For each cell type in the TME, we calculated a spatial score measuring the distance of nearest neighbor cells to the malignant Hodgkin Reed Sternberg cells within the close interaction range. Spatial scores were used as features in prognostic model development for post-ASCT outcomes. RESULTS: Highly multiplexed IMC data revealed shared TME patterns in paired diagnostic and early r/r CHL samples, whereas TME patterns were more divergent in pairs of diagnostic and late relapse samples. Integrated analysis of IMC and single-cell RNA sequencing data identified unique architecture defined by CXCR5+ Hodgkin and Reed Sternberg (HRS) cells and their strong spatial relationship with CXCL13+ macrophages in the TME. We developed a prognostic assay (RHL4S) using four spatially resolved parameters, CXCR5+ HRS cells, PD1+CD4+ T cells, CD68+ tumor-associated macrophages, and CXCR5+ B cells, which effectively separated patients into high-risk versus low-risk groups with significantly different post-ASCT outcomes. The RHL4S assay was validated in an independent r/r CHL cohort using a multicolor immunofluorescence assay. CONCLUSION: We identified the interaction of CXCR5+ HRS cells with ligand-expressing CXCL13+ macrophages as a prominent crosstalk axis in relapsed CHL. Harnessing this TME biology, we developed a novel prognostic model applicable to r/r CHL biopsies, RHL4S, opening new avenues for spatial biomarker development.


Asunto(s)
Enfermedad de Hodgkin , Humanos , Enfermedad de Hodgkin/tratamiento farmacológico , Microambiente Tumoral , Ecosistema , Recurrencia Local de Neoplasia , Resultado del Tratamiento , Recurrencia
13.
Nutr Diabetes ; 13(1): 21, 2023 11 15.
Artículo en Inglés | MEDLINE | ID: mdl-37968264

RESUMEN

BACKGROUND AND AIMS: Sarcopenia is associated with worse prognosis for non-alcoholic fatty liver disease (NAFLD). However, disease progression in the MAFLD-related sarcopenia is largely unknown. We aimed to clarify the relationship between MAFLD and/or sarcopenia with mortality and liver fibrosis in the real world. METHODS: A total of 13,692 individuals were selected from the third National Health and Nutrition Examination Surveys and linked mortality until December 2019. MAFLD is diagnosed based on a radiologically diagnosed hepatic steatosis and the presence of any one of the following three conditions: overweight/obesity, diabetes mellitus (DM), or metabolic dysregulation. Sarcopenia is defined by weight-adjusted skeletal muscle mass. RESULTS: The mean age was 43.7 ± 15.97 years, and 47.3% of the individuals were male. MAFLD was diagnosed in 4207/13,692 (30.73%) participants, and the proportion of sarcopenic was 19.42% amongst subjects with MAFLD. The mean follow-up duration was of 23.7 ± 7.62 years. MAFLD (aHR 1.152, 95% CI 1.070-1.241) and sarcopenia (aHR 1.123, 95% CI 1.042-1.210) were related to increased all-cause mortality in MAFLD after adjustment for age, sex, race, marital status, education, and smoking. Stratified analysis revealed that MAFLD and sarcopenia additively increased the risk of mortality (aHR 1.247, 95% CI 1.132-1.373) and liver fibrosis (aOR 2.296, 95% CI 1.718-3.069 assessed by NFS score >0.676; aOR 2.218, 95% CI 1.788-2.752 assessed by FIB-4 score >1.3) in fully adjusted models (P < 0.001 for all). CONCLUSION: Sarcopenia in individuals with MAFLD portends increased mortality and significant liver fibrosis. Novel therapeutic strategies targeting at increasing skeletal muscle mass should be explored for patients with MAFLD.


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Sarcopenia , Humanos , Masculino , Adulto , Persona de Mediana Edad , Femenino , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Escolaridad , Cirrosis Hepática/complicaciones , Obesidad/complicaciones
14.
JAMA Netw Open ; 6(9): e2331162, 2023 09 05.
Artículo en Inglés | MEDLINE | ID: mdl-37656460

RESUMEN

Importance: Newborn screening via biochemical tests is in use worldwide. The availability of genetic sequencing has allowed rapid screening for a substantial number of monogenic disorders. However, the outcomes of this strategy have not been evaluated in a general newborn population. Objective: To evaluate the outcomes of applying gene panel sequencing as a first-tier newborn screening test. Design, Setting, and Participants: This cohort study included newborns who were prospectively recruited from 8 screening centers in China between February 21 and December 31, 2021. Neonates with positive results were followed up before July 5, 2022. Exposures: All participants were concurrently screened using dried blood spots. The screen consisted of biochemical screening tests and a targeted gene panel sequencing test for 128 conditions. The biochemical and genomic tests could both detect 43 of the conditions, whereas the other 85 conditions were screened solely by the gene panel. Main Outcomes and Measures: The primary outcomes were the number of patients detected by gene panel sequencing but undetected by the biochemical test. Results: This study prospectively recruited 29 601 newborns (15 357 [51.2%] male). The mean (SD) gestational age was 39.0 (1.5) weeks, and the mean (SD) birth weight was 3273 (457) g. The gene panel sequencing screened 813 infants (2.7%; 95% CI, 2.6%-2.9%) as positive. By the date of follow-up, 402 infants (1.4%; 95% CI, 1.2%-1.5%) had been diagnosed, indicating the positive predictive value was 50.4% (95% CI, 50.0%-53.9%). The gene panel sequencing identified 59 patients undetected by biochemical tests, including 20 patients affected by biochemically and genetically screened disorders and 39 patients affected by solely genetically screened disorders, which translates into 1 out of every 500 newborns (95% CI, 1/385-1/625) benefiting from the implementation of gene panels as a first-tier screening test. Conclusions and Relevance: In this cohort study, the use of gene panel sequencing in a general newborn population as a first-tier screening test improved the detection capability of traditional screening, providing an evidence-based suggestion that it could be considered as a crucial method for first-tier screening.


Asunto(s)
Genómica , Tamizaje Neonatal , Recién Nacido , Lactante , Humanos , Masculino , Femenino , Estudios de Cohortes , Peso al Nacer , China
15.
ISA Trans ; 142: 585-593, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37586933

RESUMEN

The disturbance suppression of magnetic levitation turbomolecular pumps is a critical problem in industrial applications. This work addresses the stability control of high-speed magnetic levitation turbomolecular pumps with shock-excited disturbance. A disturbance suppression method based on improved linear extended state observer is proposed to attenuate the impact of external low-frequency disturbing force on a magnetic levitation turbomolecular pump. Firstly, a linear extended state observer of an active magnetic bearing is obtained by analyzing the rotor dynamics model. Then, the detailed descriptions of external disturbance suppression method using linear extended state observers and adaptive notch filters are discussed for the system. The boundary condition of the parameters of the improved linear extended state observer is determined. The root loci of the closed-loop system with improved linear extended state observers is also investigated. Finally, simulation and experimental results on a magnetic levitation turbomolecular pump show the applicability of the proposed method. The results show that the proposed method can attenuate the rotor vibration displacement caused by impact by 46.9%.

16.
Front Immunol ; 14: 1183859, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37404820

RESUMEN

Chronic hepatitis E virus (HEV) infection occurs mainly in immunosuppressed populations. We describe an investigation of chronic HEV infection of genotype 3a in an individual without evidence for immune deficiency who presented hepatitis with significant HEV viremia and viral shedding. We monitored HEV RNA in plasma and stools, and assessed anti-HEV specific immune responses. The patient was without apparent immunodeficiency based on quantified results of white blood cell, lymphocyte, neutrophilic granulocyte, CD3+ T cell, CD4+ T cell, and CD8+ T cell counts and CD4/CD8 ratio, as well as total serum IgG, IgM, and IgA, which were in the normal range. Despite HEV specific cellular response and strong humoral immunity being observed, viral shedding persisted up to 109 IU/mL. After treatment with ribavirin combined with interferon, the indicators of liver function in the patient returned to normal, accompanied by complete suppression and clearance of HEV. These results indicate that HEV chronicity can also occur in individuals without evidence of immunodeficiency.


Asunto(s)
Virus de la Hepatitis E , Hepatitis E , Síndromes de Inmunodeficiencia , Humanos , Hepatitis E/diagnóstico , Hepatitis E/tratamiento farmacológico , Virus de la Hepatitis E/genética , Linfocitos T CD8-positivos , Relación CD4-CD8 , Linfocitos T CD4-Positivos , Síndromes de Inmunodeficiencia/complicaciones
17.
ACS Appl Mater Interfaces ; 15(29): 35543-35551, 2023 Jul 26.
Artículo en Inglés | MEDLINE | ID: mdl-37440697

RESUMEN

Thin-film composite membranes are a leading technology for post-combustion carbon capture, and the key challenge is to fabricate defect-free selective nanofilms as thin as possible (100 nm or below) with superior CO2/N2 separation performance. Herein, we developed high-performance membranes based on an unusual choice of semi-crystalline blends of amorphous poly(ethylene oxide) (aPEO) and 18-crown-6 (C6) using two nanoengineering strategies. First, the crystallinity of the nanofilms decreases with decreasing thickness and completely disappears at 500 nm or below because of the thickness confinement. Second, polydimethylsiloxane is chosen as the gutter layer between the porous support and selective layer, and its surface is modified with bio-adhesive polydopamine (<10 nm) with an affinity toward aPEO, enabling the formation of the thin, defect-free, amorphous aPEO/C6 layer. For example, a 110 nm film containing 40 mass % C6 in aPEO exhibits CO2 permeability of 900 Barrer (much higher than a thick film with 420 Barrer), rendering a membrane with a CO2 permeance of 2200 GPU and CO2/N2 selectivity of 27 at 35 °C, surpassing Robeson's upper bound. This work shows that engineering at the nanoscale plays an important role in designing high-performance membranes for practical separations.

18.
J Fungi (Basel) ; 9(6)2023 Jun 06.
Artículo en Inglés | MEDLINE | ID: mdl-37367582

RESUMEN

Revealing the regional distribution and diversity of fungal sub-communities under different land management practices is essential to conserve biodiversity and predict microbial change trends. In this study, a total of 19 tilled and 25 untilled soil samples across different land-use types were collected from subtropical China to investigate the differences between the spatial distribution patterns, diversity, and community assembly of fungal sub-communities using high-throughput sequencing technology. Our results found that anthropogenic disturbances significantly reduced the diversity of abundant taxa but significantly increased the diversity of rare taxa, suggesting that the small-scale intensive management of land by individual farmers is beneficial for fungal diversity, especially for the conservation of rare taxa. Abundant, intermediate, and rare fungal sub-communities were significantly different in tilled and untilled soils. Anthropogenic disturbances both enhanced the homogenization of fungal communities and decreased the spatial-distance-decay relationship of fungal sub-communities in tilled soils. Based on the null model approach, the changes in the assembly processes of the fungal sub-communities in tilled soils were found to shift consistently to stochastic processes, possibly as a result of the significant changes in the diversity of those fungal sub-communities and associated ecological niches in different land-use types. Our results provide support for the theoretical contention that fungal sub-communities are changed by different land management practices and open the way to the possibility of predicting those changes.

19.
Front Pediatr ; 11: 1185802, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37252044

RESUMEN

Background: Congenital hypothyroidism (CH) is an neonatal endocrine disorder. Traditional newborn screening is the mainstream method of CH screening, so as to ensure the early detection and treatment of CH. This method is limited as it has high rates of false positives and negatives. Genetic screening can be used to address the shortcomings of traditional newborn Screening (NBS); however, the comprehensive clinical value of genetic screening is yet to be systematically studied. Methods: A total of 3,158 newborns who accepted the newborn screening and genetic screening were recruited for this study. Biochemical screening and genetic screening were performed at the same time. The level of TSH with the DBS was detected by time-resolved immunofluorescence assay. High-throughput sequencing technology based on targeted gene capture was used for genetic screening. The suspected neonatal was recalled and tested serum TSH, and FT4. Finally, the effectiveness of traditional NBS and combined screening was compared. Results: In this study, 16 cases were diagnosed by traditional NBS. 10 cases of DUOX2 mutation were found in newborn CH-related genetic screening, including 5 homozygous and 5 compound heterozygous variations. We found that the c.1588A > T mutations in DUOX2 constituting the predominant site in the present cohort.Compared with NBS and genetic screening, the sensitivity of combined screening increased by 11.1% and 55.6%, respectively. Compared with NBS and genetic screening, the negative predictive value of combined screening increased by 0.1% and 0.4%, respectively. Conclusions: Combined traditional NBS and genetic screening reduces the false negative rate of CH screening and improves the early and accurate identification of neonates with CH. Our research explains the mutation spectrum of CH in this region, and provisionally demonstrates the necessity, feasibility and significance of genetic screening in newborns and provides a solid basis for future clinical developments.

20.
Microbiol Spectr ; 11(3): e0344922, 2023 06 15.
Artículo en Inglés | MEDLINE | ID: mdl-37036374

RESUMEN

Wheat sharp eyespot caused by Rhizoctonia cerealis is primarily a severe threat to worldwide wheat production. Currently, there are no resistant wheat cultivars, and the use of fungicides is the primary method for controlling this disease. Elucidating the mechanisms of R. cerealis pathogenicity can accelerate the pace of the control of this disease. Long intergenic noncoding RNAs (lincRNAs) that function in plant-pathogen interactions might provide a new perspective. We systematically analyzed lincRNAs and identified a total of 1,319 lincRNAs in R. cerealis. We found that lincRNAs are involved in various biological processes, as shown by differential expression analysis and weighted correlation network analysis (WGCNA). Next, one of nine hub lincRNAs in the blue module that was related to infection and growth processes, MSTRG.4380.1, was verified to reduce R. cerealis virulence on wheat by a host-induced gene silencing (HIGS) assay. Following that, RNA sequencing (RNA-Seq) analysis revealed that the significantly downregulated genes in the MSTRG.4380.1 knockdown lines were associated mainly with infection-related processes, including hydrolase, transmembrane transporter, and energy metabolism activities. Additionally, 23 novel microRNAs (miRNAs) were discovered during small RNA (sRNA) sequencing (sRNA-Seq) analysis of MSTRG.4380.1 knockdown, and target prediction of miRNAs suggested that MSTRG.4380.1 does not act as a competitive endogenous RNA (ceRNA). This study performed the first genome-wide identification of R. cerealis lincRNAs and miRNAs. It confirmed the involvement of a lincRNA in the infection process, providing new insights into the mechanism of R. cerealis infection and offering a new approach for protecting wheat from R. cerealis. IMPORTANCE Rhizoctonia cerealis, the primary causal agent of wheat sharp eyespot, has caused significant losses in worldwide wheat production. Since no resistant wheat cultivars exist, chemical control is the primary method. However, this approach is environmentally unfriendly and costly. RNA interference (RNAi)-mediated pathogenicity gene silencing has been proven to reduce the growth of Rhizoctonia and provides a new perspective for disease control. Recent studies have shown that lincRNAs are involved in various biological processes across species, such as biotic and abiotic stresses. Therefore, verifying the function of lincRNAs in R. cerealis is beneficial for understanding the infection mechanism. In this study, we reveal that lincRNAs could contribute to the virulence of R. cerealis, which provides new insights into controlling this pathogen.


Asunto(s)
MicroARNs , ARN Largo no Codificante , ARN Pequeño no Traducido , Triticum/genética , ARN Largo no Codificante/genética , ARN Largo no Codificante/metabolismo , MicroARNs/genética , MicroARNs/metabolismo , ARN Pequeño no Traducido/metabolismo , Enfermedades de las Plantas
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