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1.
Pathol Oncol Res ; 30: 1611693, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38807858

RESUMEN

Lung cancer incidence and mortality rates are increasing worldwide, posing a significant public health challenge and an immense burden to affected families. Lung cancer encompasses distinct subtypes, namely, non-small-cell lung cancer (NSCLC) and small-cell lung cancer (SCLC). In clinical investigations, researchers have observed that neuroendocrine tumors can be classified into four types: typical carcinoid, atypical carcinoid, small-cell carcinoma, and large-cell neuroendocrine carcinoma based on their unique features. However, there exist combined forms of neuroendocrine cancer. This study focuses specifically on combined pulmonary carcinomas with a neuroendocrine component. In this comprehensive review article, the authors provide an overview of combined lung cancers and present two pathological images to visually depict these distinctive subtypes.


Asunto(s)
Carcinoma Neuroendocrino , Neoplasias Pulmonares , Humanos , Neoplasias Pulmonares/patología , Carcinoma Neuroendocrino/patología , Carcinoma de Pulmón de Células no Pequeñas/patología
2.
Sci Rep ; 14(1): 5200, 2024 03 03.
Artículo en Inglés | MEDLINE | ID: mdl-38431707

RESUMEN

Systemic sclerosis (SSc), also known as scleroderma, is an autoimmune-related connective tissue disease with a complex and unknown pathophysiological mechanism with genes association. Several articles have reported a high prevalence of thyroid disease in SSc patients, while one study suggested a potential contribution of appendicitis to the development of SSc. To investigate this causal association, we conducted Mendelian randomization (MR) analysis using instrumental variables (IVs) to assess exposure and outcome. In the MR study involving two cohorts, all analyses were conducted using the TwoSampleMR package in R (version 4.3.0). Single nucleotide polymorphisms (SNPs) meeting a statistically significant threshold of 5E-08 were included in the analysis. Multiple complementary approaches including MR-IVW, MR-Egger, weighted median, simple mode, and weighted mode were employed to estimated the relationship between the exposure and outcome. Leave-one-out analysis and scatter plots were utilized for further investigation. Based on the locus-wide significance level, all of the MR analysis consequences manifested no causal association between the risk of appendicitis with SSc (IVW OR 0.319, 95% CI 0.063-14.055, P = 0.966). Negative causal effects of autoimmune thyroiditis (AT) on SSc (IVW OR 0.131, 95% CI 0.816-1.362, P = 0.686), Graves' disease (GD) on SSc (IVW OR 0.097, 95% CI 0.837-1.222, P = 0.908), and hypothyroidism on SSc (IVW OR 1.136, 95% CI 0.977-1.321, P = 0.096) were derived. The reverse MR revealed no significant causal effect of SSc on thyroid disease. According to the sensitivity analysis, horizontal pleiotropy was unlikely to distort the causal estimates. The consequences indicated no significant association between AT, GD, and hypothyroidism with SSc. Similarly, there was no observed relationship with appendicitis.


Asunto(s)
Apendicitis , Enfermedades Autoinmunes , Enfermedad de Graves , Enfermedad de Hashimoto , Hipotiroidismo , Esclerodermia Sistémica , Tiroiditis Autoinmune , Humanos , Análisis de la Aleatorización Mendeliana , Esclerodermia Sistémica/genética , Estudio de Asociación del Genoma Completo
3.
Small Methods ; : e2301682, 2024 Feb 08.
Artículo en Inglés | MEDLINE | ID: mdl-38332438

RESUMEN

Triboelectric nanogenerators (TENGs) can collect and convert random mechanical energy into electric energy, with remarkable advantages including broadly available materials, straightforward preparation, and multiple applications. Over the years, researchers have made substantial advancements in the theoretical and practical aspects of TENG. Nevertheless, the pivotal challenge in realizing full applications of TENG lies in ensuring that the generated output meets the specific application requirements. Consequently, substantial research is dedicated to exploring methods and mechanisms for enhancing the output performance of TENG devices. This review aims to comprehensively examine the influencing factors and corresponding improvement strategies of the output performance based on the contact electrification mechanism and operational principles that underlie TENG technology. This review primarily delves into five key areas of improvement: materials selection, surface modification, component adjustments, structural optimization, and electrode enhancements. These aspects are crucial in tailoring TENG devices to meet the desired performance metrics for various applications.

4.
Braz J Med Biol Res ; 56: e13045, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37937603

RESUMEN

Pulmonary fibrosis (PF) is a major public health issue with limited treatment options. As the active ingredient of the n-butanol extract of Amygdalus mongolica (BUT), amygdalin inhibits PF. However, its mechanisms of action are unclear and need further verification. Therefore, the purpose of the present studies was to investigate the anti-fibrotic effects of BUT on PF by serum metabolomics and the transforming growth factor ß (TGF-ß) pathway. Sixty male Sprague-Dawley rats were randomly divided into control, untreated PF, prednisone-treated (5 mg/kg), and BUT-treated (1.75, 1.25, 0.75 g/kg) groups, and the respective drugs were administered intragastrically for 21 days. The serum metabolomics profiles were determined by ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-QTOF/MS) and metabolism network analysis. The expression of TGF-ß1, Smad-3, Smad-7, and α-smooth muscle actin (α-SMA) was measured using a real-time polymerase chain reaction in the lung tissue. BUT significantly alleviated fibrosis by reducing the mRNA expressions of TGF-ß1 (from 1.73 to 1.13), Smad-3 (from 2.01 to 1.19), and α-SMA (from 2.14 to 1.19) and increasing that of Smad7 (from 0.17 to 0.62). Twenty-eight potential biomarkers associated with PF were identified. In addition, four key biomarkers were restored to baseline levels following BUT treatment, with the lowest dose showing optimal effect. Furthermore, A. mongolica BUT was found to improve PF by the pentose phosphate pathway and by taurine, hypotaurine, and arachidonic acid metabolism. These findings revealed the mechanism of A. mongolica BUT antifibrotic effects and metabolic activity in PF rats and provided the experimental basis for its clinical application.


Asunto(s)
Fibrosis Pulmonar , Ratas , Masculino , Animales , Fibrosis Pulmonar/inducido químicamente , Fibrosis Pulmonar/tratamiento farmacológico , Fibrosis Pulmonar/metabolismo , Factor de Crecimiento Transformador beta1/genética , Bleomicina/efectos adversos , 1-Butanol/efectos adversos , Ratas Sprague-Dawley , Transducción de Señal , Biomarcadores
6.
J Exp Clin Cancer Res ; 42(1): 138, 2023 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-37264406

RESUMEN

BACKGROUND: Breast cancer (BC) negatively impacts the health of women worldwide. Circular RNAs (circRNAs) are a group of endogenous RNAs considered essential regulatory factor in BC tumorigenesis and progression. However, the underlying molecular mechanisms of circRNAs remain unclear. METHODS: Expression levels of circPAPD4, miR-1269a, CREBZF, and ADAR1 in BC cell lines and tissues were measured using bioinformatics analysis, RT-qPCR, ISH, and IHC. Cell proliferation and apoptosis were measured using CCK8, EdU staining, flow cytometry, and TUNEL assays. Pearson correlation analysis, RNA pull-down, dual-luciferase reporter, and co-immunoprecipitation assays were used to explore the correlation among circPAPD4, miR-1269a, CREBZF, STAT3, and ADAR1. Effects of circPAPD4 overexpression on tumor progression were investigated using in vivo assays. Moreover, CREBZF mRNA delivered by polymeric nanoparticles (CREBZF-mRNA-NPs) was used to examine application value of our findings. RESULTS: CircPAPD4 expression was low in BC tissues and cells. Functionally, circPAPD4 inhibited proliferation and promoted apoptosis in vitro and in vivo. Mechanistically, circPAPD4 biogenesis was regulated by ADAR1. And circPAPD4 promoted CREBZF expression by competitively binding to miR-1269a. More importantly, CREBZF promoted circPAPD4 expression by suppressing STAT3 dimerization and ADAR1 expression, revealing a novel positive feedback loop that curbed BC progression. Systematic delivery of CREBZF-mRNA-NPs effectively induced CREBZF expression and activated the positive feedback loop of circPAPD4/miR-1269a/CREBZF/STAT3/ADAR1, which might suppress BC progression in vitro and in vivo. CONCLUSION: Our findings firstly illustrated that circPAPD4/miR-1269a/CREBZF/STAT3/ADAR1 positive feedback loop mediated BC progression, and delivering CREBZF mRNA nanoparticles suppressed BC progression in vitro and in vivo, which might provide novel insights into therapeutic strategies for breast cancer.


Asunto(s)
Neoplasias de la Mama , MicroARNs , Humanos , Femenino , Neoplasias de la Mama/patología , MicroARNs/genética , MicroARNs/metabolismo , ARN Circular/genética , ARN Mensajero , Retroalimentación , Línea Celular Tumoral , Proliferación Celular/genética , Regulación Neoplásica de la Expresión Génica , Factores de Transcripción con Cremalleras de Leucina de Carácter Básico/metabolismo
7.
Int J Nanomedicine ; 18: 1677-1693, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37020690

RESUMEN

Background: Circular RNAs (circRNAs) are becoming vital biomarkers and therapeutic targets for malignant tumors due to their high stability and specificity in tissues. However, biological functions of circRNAs in hepatocellular carcinoma (HCC) are still not well studied. Methods: Gene Expression Omnibus (GEO) database and qRT-PCR were used to evaluate expression of circROBO1 (hsa_circ_0066568) in HCC tissues and cell lines. CCK-8, colony formation, EdU staining, flow cytometry for cell cycle analysis, and xenograft model assays were performed to detect the circROBO1 function in vitro and in vivo. RNA pull-down, RNA immunoprecipitation (RIP), and Luciferase reporter assays were used to investigate the relationship among circROBO1, miR-130a-5p, and CCNT2. More importantly, we developed nanoparticles made from poly lactic-co-glycolic acid (PLGA) and polyethylene glycol (PEG) chains as the delivery system of si-circROBO1 and then applied them to HCC in vitro and in mice. Results: circROBO1 was obviously upregulated in HCC tissues and cell lines, and elevated circROBO1 was closely correlated with worse prognosis for HCC patients. Functionally, knocking down circROBO1 significantly suppressed HCC cells growth in vitro and in mice. Mechanistically, circROBO1 acted as a competing endogenous RNA to downregulate miR-130a-5p, leading to CCNT2 expression upregulation. Furthermore, miR-130a-5p mimic or CCNT2 knockdown reversed the role of circROBO1 overexpression on HCC cells, which demonstrated that circROBO1 promoted HCC development via miR-130a-5p/CCNT2 axis. In addition, we developed nanoparticles loaded with si-circROBO1, named as PLGA-PEG (si-circROBO1) NPs, which significantly prevented the proliferation of HCC cells, and did not exhibit apparent toxicity to major organs in vivo. Conclusion: Our findings firstly demonstrate that circROBO1 overexpression promotes HCC progression by regulating miR-130a-5p/CCNT2 axis, which may serve as an effective nanotherapeutic target for HCC treatment.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , MicroARNs , Nanopartículas , Humanos , Animales , Ratones , ARN Circular , Glicoles , Proliferación Celular , Línea Celular Tumoral , Ciclina T
8.
Epigenetics ; 18(1): 2192438, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-36989117

RESUMEN

Ferroptosis is a newly characterized form of iron-dependent non-apoptotic cell death, which is closely associated with cancer progression. However, the functions and mechanisms in regulation of escaping from ferroptosis during hepatocellular carcinoma (HCC) progression remain unknown. In this study, we reported that the RNA binding motif single stranded interacting protein 1 (RBMS1) participated in HCC development,and functioned as a regulator of ferroptosis. Clinically, the downregulation of RBMS1 occurred in HCC tissues, and low RBMS1 expression was associated with worse HCC patients survival. Mechanistically, RBMS1 overexpression inhibited HCC cell growth by attenuating the expression of glutathione peroxidase 4 (GPX4)and further facilitated ferroptosis in vitro and in vivo. More importantly, a novel circIDE (hsa_circ_0000251) was identified to elevate RBMS1 expression via sponging miR-19b-3p in HCC cells. Collectively, our findings established circIDE/miR-19b-3p/RBMS1 axis as a regulator of ferroptosis, which could be a promising therapeutic target and prognostic factor.


Asunto(s)
Carcinoma Hepatocelular , Ferroptosis , Neoplasias Hepáticas , MicroARNs , Humanos , Carcinoma Hepatocelular/patología , Neoplasias Hepáticas/metabolismo , Ferroptosis/genética , Línea Celular Tumoral , ARN Circular/genética , Metilación de ADN , MicroARNs/genética , MicroARNs/metabolismo , Proliferación Celular/genética , Regulación Neoplásica de la Expresión Génica , Proteínas de Unión al ADN/genética , Proteínas de Unión al ARN/genética
9.
J Gastrointest Oncol ; 14(1): 312-324, 2023 Feb 28.
Artículo en Inglés | MEDLINE | ID: mdl-36915450

RESUMEN

Background: A previous study has examined the overall cancer statistics. However, more detailed statistics regarding liver cancer have not been provided. We evaluated the incidence and mortality trends of liver and intrahepatic bile duct cancer in the United States from 1975 to 2017 based on the data in the Surveillance, Epidemiology, and End Results (SEER) database. Methods: Age, gender, race, metastasis, tumor site, and tumor grade of patients were extracted from the SEER database. Codes C22.0 and C22.1 of the International Classification of Disease for Oncology were applied to identify patients with hepatocellular carcinoma (HCC) and/or intrahepatic cholangiocarcinoma (ICC). Age-specified incidence, age-standardized incidence and mortality, 5-year relative survival, race-specific accumulative incidence and mortality, and geographic-specific accumulative mortality were calculated in different groups. Changes in trends of liver cancer incidence and mortality were assessed using Joinpoint regression. Results: The overall incidence increased significantly from 2.641/100,000 person-years in 1975 to 8.657/100,000 person-years in 2017 [average annual percent change (AAPC) =3.42, 95% confidence interval (CI): 3.28-3.62, P<0.001]. The steepest incidence rate increase was observed in the 60-69-year-old age group (AAPC =4.40, 95% CI: 4.10-4.70, P<0.001). Males exhibited a more rapid increase in cancer incidence, from 3.928/100,000 to 13.128/100,000 person-years (AAPC =3.41, 95% CI: 3.21-3.61, P<0.001), than females [from 1.642/100,000 to 4.783/100,000 person-years (AAPC =3.03, 95% CI: 2.91-3.21, P=0.001)]. The overall mortality rate increased from 2.808/100,000 person-years in 1975 to 6.648/100,000 person-years in 2017 (AAPC =2.41, 95% CI: 2.29-2.51, P<0.001). The highest mortality rate was observed in Hawaii (6.996/100,000 person-years). Conclusions: The incidence and mortality rates of HCC and ICC increased from 1975 to 2017, especially in males, non-Hispanic Blacks and older individuals. Comprehensive policy and control measures should be implemented to reduce the burden of disease, particularly through health monitoring and intervention for high-risk groups.

11.
Environ Toxicol ; 38(5): 1022-1037, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36715182

RESUMEN

Microvascular invasion (MVI) is a crucial risk factor related to the metastasis of hepatocellular carcinoma (HCC), but the underlying mechanisms remain to be revealed. Characterizing the inherent mechanisms of MVI may aid in the development of effective treatment strategies to improve the prognosis of HCC patients with metastasis. Through the Gene Expression Omnibus (GEO) database, we identified that small nuclear ribonucleoprotein polypeptide A (SNRPA) was related to MVI in HCC. SNRPA was overexpressed in MVI-HCC and correlated with poor patient survival. Mechanistically, SNRPA promoted the epithelial-mesenchymal transition (EMT)-like process for HCC cells to accelerate metastasis by activating the NOTCH1/Snail pathway in vitro and in vivo. Importantly, circSEC62 upregulated SNRPA expression in HCC cells via miR-625-5p sponging. Taking these results together, our study identified a novel regulatory mechanism among SNRPA, miR-625-5p, circSEC62 and the NOTCH1/Snail pathway in HCC, which promoted metastasis of HCC and may provide effective suggestions for improving the prognosis of HCC patients with metastasis.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , MicroARNs , Metástasis de la Neoplasia , Factores de Empalme de ARN , ARN Circular , Humanos , Carcinoma Hepatocelular/patología , Línea Celular Tumoral , Movimiento Celular , Proliferación Celular , Transición Epitelial-Mesenquimal/genética , Regulación Neoplásica de la Expresión Génica , Neoplasias Hepáticas/patología , MicroARNs/genética , Péptidos/genética , Péptidos/metabolismo , Receptor Notch1/genética , Receptor Notch1/metabolismo , Factores de Empalme de ARN/genética , Factores de Empalme de ARN/metabolismo , ARN Circular/metabolismo
12.
Mol Cell Biochem ; 478(2): 249-260, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35933548

RESUMEN

Bladder outlet obstruction (BOO) is a common disease that always make the bladder develops from inflammation to fibrosis. This study was to investigate the effect of exosomes from human urine-derived stem cells (hUSCs) on bladder fibrosis after BOO and the underlying mechanism. The BOO mouse model was established by inserting a transurethral catheter, ligation of periurethral wire, and removal of the catheter. Mouse primary bladder smooth muscle cells (BSMCs) were isolated and treated with TGFß1 to mimic the bladder fibrosis model in vitro. Exosomes from hUSCs (hUSC-Exos) were injected into the bladder of BOO mice and added into the culture of TGFß1-induced BSMCs. The associated factors in mouse bladder tissues and BSMCs were detected. It was confirmed that the treatment of hUSC-Exos alleviated mouse bladder fibrosis and down-regulated fibrotic markers (a-SMA and collagen III) in bladder tissues and TGFß1-induced BSMCs. Overexpression of NRF1 in hUSC-Exos further improved the effects of hUSC-Exos on bladder fibrosis both in vivo and in vitro. TGFßR1 was a target of NRF1 and miR-301b-3p, and miR-301b-3p was a target of NRF1. It was next characterized that hUSC-Exos carried NRF1 to up-regulate miR-301B-3p, thereby reducing TGFßR1level. Our results illustrated that hUSC-Exos carried NRF1 to alleviate bladder fibrosis through regulating miR-301b-3p/TGFßR1 pathway.


Asunto(s)
Exosomas , MicroARNs , Obstrucción del Cuello de la Vejiga Urinaria , Humanos , Ratones , Animales , Vejiga Urinaria/metabolismo , Exosomas/genética , Exosomas/metabolismo , Obstrucción del Cuello de la Vejiga Urinaria/genética , Obstrucción del Cuello de la Vejiga Urinaria/metabolismo , Obstrucción del Cuello de la Vejiga Urinaria/patología , Células Madre/metabolismo , MicroARNs/genética , MicroARNs/metabolismo , Fibrosis
13.
Braz. j. med. biol. res ; 56: e13045, 2023. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1520462

RESUMEN

Pulmonary fibrosis (PF) is a major public health issue with limited treatment options. As the active ingredient of the n-butanol extract of Amygdalus mongolica (BUT), amygdalin inhibits PF. However, its mechanisms of action are unclear and need further verification. Therefore, the purpose of the present studies was to investigate the anti-fibrotic effects of BUT on PF by serum metabolomics and the transforming growth factor β (TGF-β) pathway. Sixty male Sprague-Dawley rats were randomly divided into control, untreated PF, prednisone-treated (5 mg/kg), and BUT-treated (1.75, 1.25, 0.75 g/kg) groups, and the respective drugs were administered intragastrically for 21 days. The serum metabolomics profiles were determined by ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-QTOF/MS) and metabolism network analysis. The expression of TGF-β1, Smad-3, Smad-7, and α-smooth muscle actin (α-SMA) was measured using a real-time polymerase chain reaction in the lung tissue. BUT significantly alleviated fibrosis by reducing the mRNA expressions of TGF-β1 (from 1.73 to 1.13), Smad-3 (from 2.01 to 1.19), and α-SMA (from 2.14 to 1.19) and increasing that of Smad7 (from 0.17 to 0.62). Twenty-eight potential biomarkers associated with PF were identified. In addition, four key biomarkers were restored to baseline levels following BUT treatment, with the lowest dose showing optimal effect. Furthermore, A. mongolica BUT was found to improve PF by the pentose phosphate pathway and by taurine, hypotaurine, and arachidonic acid metabolism. These findings revealed the mechanism of A. mongolica BUT antifibrotic effects and metabolic activity in PF rats and provided the experimental basis for its clinical application.

14.
J Orthop Surg Res ; 17(1): 549, 2022 Dec 19.
Artículo en Inglés | MEDLINE | ID: mdl-36529774

RESUMEN

PURPOSE: Volar locking plating (VLP) is the mainstay of treatment for distal radius fracture (DRF) but may be compromised by postoperative surgical site infection (SSI). This study aimed to identify the incidence and the risk factors for SSI following VLP of DRF. METHODS: This retrospective study identified consecutive patients who underwent VLP for closed unstable DRFs in our institution between January 2015 and June 2021. Postoperative SSI was identified by inquiring the medical records, the follow-up records or the readmission medical records for treatment of SSI. The potential factors for SSI were extracted from the medical records. Univariate and multivariate logistic regression analyses were performed to identify the independent factors. RESULTS: There were 930 patients included, and 34 had an SSI, representing an incidence of 3.7% (95% CI 2.4-4.9%). Patients with an SSI had threefold extended hospitalization stay (44.1 ± 38.2 versus 14.4 ± 12.5 days) as did those without. In univariate analysis, 18 variables were tested to be statistically different between SSI and non-SSI group. In multivariate analysis, 6 factors were identified as independently associated with SSI, including sex (male vs. female, OR 3.5, p = 0.014), ASA (III and IV vs. I, OR 3.2, p = 0.031), smoking (yes vs. no, OR 2.4, p = 0.015), bone grafting (OR 4.0, p = 0.007), surgeon volume (low vs. high, OR 2.7, p 0.011) and operation at night-time (vs. day-time, OR 7.8, p < 0.001). CONCLUSION: The postoperative SSI of VLP of DRF was not uncommon, and the factors identified in this study, especially those modifiable, would help identify individual SSI risk, target clinical surveillance and inform patient counseling.


Asunto(s)
Fracturas del Radio , Fracturas de la Muñeca , Humanos , Masculino , Femenino , Placas Óseas/efectos adversos , Fracturas del Radio/complicaciones , Infección de la Herida Quirúrgica/epidemiología , Infección de la Herida Quirúrgica/etiología , Incidencia , Estudios Retrospectivos , Fijación Interna de Fracturas/efectos adversos , Factores de Riesgo
15.
Mol Omics ; 18(9): 873-883, 2022 10 31.
Artículo en Inglés | MEDLINE | ID: mdl-36056694

RESUMEN

Shendi Bushen capsule (SDBS) is a Chinese patent medicine used for the treatment of renal fibrosis (RF). However, its mechanism of action in the treatment of RF is still unclear, which seriously restricts its clinical application. This study integrated metabolomics and biological network analysis of SDBS against RF mechanism. Metabolomic analysis of rat urine samples identified biomarkers of differential progression of RF and key metabolites regulated by SDBS. The key metabolic pathways and the related therapeutic targets of SDBS against RF were explored using biological network analysis tools. The study finds 12 metabolites as biomarkers for different stages of renal fibrosis progression. SDBS significantly modulates seven metabolites, D-erythro-imidazole-glycerol-phosphate, N-acetyl-L-aspartic acid, formiminoglutamic acid, malonic semialdehyde, 4-pyridoxic acid, isopyridox, and argininosuccinic acid. Network analysis found that alanine, aspartate and glutamate metabolism, glyoxylate and dicarboxylate metabolism, one carbon pool by folate, propanoate metabolism, and histidine metabolism are important pathways for SDBS against RF. The results showed that the therapeutic effect of SDBS was related to reducing inflammation and oxidative stress, and improving glomerular filtration function.


Asunto(s)
Enfermedades Renales , Metabolómica , Ratas , Animales , Metabolómica/métodos , Enfermedades Renales/tratamiento farmacológico , Fibrosis , Biomarcadores/metabolismo , Redes y Vías Metabólicas
16.
Chemosphere ; 308(Pt 1): 136088, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36029854

RESUMEN

The reduction of carbon dioxide (CO2) to high value-added multi-carbon compounds at the cathode is an emerging application of microbial electrosynthesis system (MES). In this study, a composite cathode consisting of hollow fiber membrane (HFM) and the carbon felt is designed to enhance the CO2 mass transfer of the cathode. The result shows that the main products are acetate and butyrate without other substances. The electrochemical performance of the electrode is significantly improved after biofilm becomes matures. The composite cathode significantly reduces the "threshold" for the synthesis of butyrate. Moreover, CO2 is dissolved and protons are consumed by synthesizing volatile fatty acids (VFAs) to maintain a stable pH inside the composite electrode. The synthesis mechanism of butyrate is that CO2 is converted sequentially into acetate and butyrate. The microenvironment of the composite electrode enriches Firmicute. This composite electrode provides a novel strategy for regulating the microenvironment.


Asunto(s)
Butiratos , Dióxido de Carbono , Acetatos/química , Dióxido de Carbono/química , Fibra de Carbono , Ácidos Grasos Volátiles , Protones
17.
Biochem Cell Biol ; 100(4): 357-369, 2022 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-36043683

RESUMEN

Bone marrow mesenchymal stem cells-derived extracellular vesicles (BMSC-EVs) relieve endometrial injury. This study aimed to elucidate the BMSC-EV mechanism in alleviating endometrial injury. Endometrial injury model in vivo was induced using 95% ethanol, and endometrial epithelial cells (EECs) treated with mifepristone were applied as an endometrial injury model in vitro. After BMSCs and BMSC-EVs were isolated and identified, the BMSC-EV function was evaluated by hematoxylin-eosin and Masson staining, immunohistochemistry, quantitative real-time PCR, Cell Counting Kit-8 assay, flow cytometry, enzyme-linked immunosorbent assay, and Transwell and tubule formation assays. The BMSC-EV mechanism was assessed using Western blot, ubiquitination, and cycloheximide-chase assays. After isolation and identification, BMSC-EVs were effective in endometrial injury repair in vivo and facilitated EEC proliferation and repressed cell apoptosis in vitro; the EEC supernatants accelerated human umbilical vein endothelial cell proliferation, migration, and invasion and facilitated angiogenesis after endometrial injury in vitro. For the BMSC-EV mechanism, E3 ubiquitin ligase WWP1 in BMSC-EVs mediated the ubiquitination of peroxisome proliferator-activated receptor gamma (PPARγ), thus relieving the PPARγ inhibition on vascular endothelial growth factor expression. Furthermore, the WWP1 in BMSC-EVs alleviated endometrial injury in vitro and in vivo. BMSC-EVs facilitated endometrial injury repair by carrying WWP1.


Asunto(s)
Vesículas Extracelulares , Células Madre Mesenquimatosas , Vesículas Extracelulares/metabolismo , Humanos , Células Madre Mesenquimatosas/metabolismo , PPAR gamma/metabolismo , Ubiquitina-Proteína Ligasas/metabolismo , Factor A de Crecimiento Endotelial Vascular/metabolismo
18.
Stem Cell Res Ther ; 13(1): 375, 2022 07 28.
Artículo en Inglés | MEDLINE | ID: mdl-35902883

RESUMEN

BACKGROUND: The mechanism of bone marrow mesenchymal stem cells (BMSCs) in treating hepatic fibrosis remains unclear. METHODS: TGF-ß1-induced hepatic stellate cell (HSC)-T6 and CCl4-induced hepatic fibrosis rats were treated with BMSCs. HSC-T6 cell activity was determined using the cell counting kit-8 assay, and the histology change was evaluated using hematoxylin and eosin and Masson staining. The expression of fibrosis markers was determined using real-time quantitative PCR, Western blotting, and immunocytochemistry. RNA sequencing (RNA-seq) was used to screen the lncRNAs involved in the effect of BMSCs in fibrosis, and the function of fibrosis-associated lncRNA in fibrosis histology change and fibrosis marker expression was investigated. The potential miRNA target of lncRNA was predicted using R software. The interaction between lncRNA and miRNA was verified using luciferase report system and RNA immunoprecipitation (RIP) in 293T and HSC-T6 cells. RESULTS: BMSC attenuated TGF-ß1-induced HSC-T6 activation and suppressed the expression of fibrosis-associated gene (MMP2, Collagen I, and αSMA) expression at the transcription and translation levels. BMSC treatment also improves hepatic fibrosis in rats with CCl4-induced fibrosis by decreasing the expression of fibrosis-associated genes and suppressing collagen deposition in the liver. RNA-seq revealed that AABR07028795.2 (lnc-BIHAA1) was downregulated in the TGF-ß1-induced HSC-T6 after treatment with BMSCs as compared with those in TGF-ß1-induced HSC-T6, and subsequently, functional analysis showed that lnc-BIHAA1 plays a beneficial role in suppressing hepatic fibrosis. Luciferase activity assay and RIP revealed that lnc-BIHAA1 interacted with the miRNA, rno-miR-667-5p, functioning as a fibrosis phenotype suppressor in TGF-ß1-induced HSC-T6. Moreover, overexpression of rno-miR-667-5p significantly reverses the effect of lnc-BIHAA1 on HSC-T6. CONCLUSIONS: BMSC treatment suppresses hepatic fibrosis by downregulating the lnc-BIHAA1/rno-miR-667-5p signaling pathway in HSCs. Our results provide a scientific basis for establishing BMSCs as a biological treatment method for liver fibrosis.


Asunto(s)
Células Madre Mesenquimatosas , MicroARNs , ARN Largo no Codificante , Animales , Proliferación Celular , Colágeno Tipo I/metabolismo , Células Estrelladas Hepáticas/metabolismo , Cirrosis Hepática/inducido químicamente , Cirrosis Hepática/genética , Cirrosis Hepática/terapia , Células Madre Mesenquimatosas/metabolismo , MicroARNs/genética , MicroARNs/metabolismo , ARN Largo no Codificante/metabolismo , Ratas , Factor de Crecimiento Transformador beta1/genética , Factor de Crecimiento Transformador beta1/metabolismo
19.
BMC Musculoskelet Disord ; 23(1): 591, 2022 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-35725465

RESUMEN

BACKGROUND: This retrospective study included an alternative treatment for types A2, A3, and B1 distal radius fractures using percutaneous fixation with a cemented K-wire frame. METHODS: From January 2017 to January 2020, 78 patients with distal radius fractures were treated with percutaneous internal fixation using a cemented K-wire frame. There were 47 male patients and 31 female patients. The fractures were classified into types A2 (n = 10), A3 (n = 46), and B1 (n = 22). X-rays were taken immediately after surgery and after the bone had healed. Wrist function was assessed using the Mayo Wrist Score (90-100, excellent; 80-90, good; 60-80, satisfactory; < 60, poor). Patient satisfaction was assessed using the 10-cm visual analog scale. RESULTS: Neither fixation failure nor K-wire migration was found (P > 0.05). Osteomyelitis was not observed in this series. All patients achieved bone healing after a mean of 4.5 weeks (range, 4 to 8 weeks). Follow-up lasted a mean of 27 months (range, 24 to 33 months). The mean score of wrist function was 97 (range, 91 to 100). Among them, 66 results were excellent and 12 results were good. The mean patient satisfaction was 10 cm (range, 8 to 10 cm). CONCLUSIONS: Percutaneous fixation with cemented K-wire frame is a safe and preferred choice for the treatment of types A2, A3, and B1 distal radius fractures. The frame provides support to prevent wire migration. The fixation technique is a minimally invasive procedure that is easy to perform. LEVEL OF EVIDENCE: Therapeutic study, Level IVa.


Asunto(s)
Fracturas del Radio , Hilos Ortopédicos , Femenino , Fijación Interna de Fracturas/efectos adversos , Fijación Interna de Fracturas/métodos , Humanos , Masculino , Radiografía , Fracturas del Radio/diagnóstico por imagen , Fracturas del Radio/cirugía , Estudios Retrospectivos , Resultado del Tratamiento
20.
Zhongguo Zhong Yao Za Zhi ; 47(8): 2237-2243, 2022 Apr.
Artículo en Chino | MEDLINE | ID: mdl-35531740

RESUMEN

Clinical expertise, patient preference, and the best evidence are the three elements of evidence-based medicine. Based on high-level and high-quality evidence, qualitative and quantitative analysis of the prescribing decisions of physicians is beneficial to improving clinical efficacy. A mature methodological system is available for the retrieval, analysis, summary, evaluation, and recommendation of the evidence, but there are still few studies on physicians' prescribing decisions. How to analyze the trend of physicians' prescribing decisions based on the priority ranking in addition and subtraction of prescriptions? Analytic hierarchy process(AHP) is a method for decision making, which arranges the elements of the decision problem into overall goal, criteria, and operational sub-criteria, and uses the matrix eigenvector method to solve the problem. This study aims to analyze the priority of physicians' prescribing decisions for diabetes mellitus with deficiency of both Qi and Yin based on AHP. To be specific, a database of diabetes mellitus cases with deficiency of both Qi and Yin was established and AHP was used to yield the priority ranking of Chinese patent medicine prescriptions in specific clinical scenarios. In the selected cases of diabetes mellitus with deficiency of both Qi and Yin, Xiaoke Pills was the best prescription for the treatment of type 2 diabetes mellitus(deficiency of both Qi and Yin)(normalized=0.388), followed by Liuwei Dihuang Pills(normalized=0.269), Qishen Capsules(normalized=0.230), and Shengmai Injection(normalized=0.113). According to the analysis the available data, for type 2 diabetes mellitus(deficiency of both Qi and Yin), Xiaoke Pills was the most effective prescription in specific scenarios. When the physicians' prescribing decisions are consistent with the evidence, quantitative analysis of physicians' cognition will boost the evidence-based medical decision-making. However, the research results are also affected by the quality of literature, evidence level and priority, which are thus have some limitations. It is recommended that further small data research based on individual cases be carried out to lay a evidence-based basis for the clinical decision-making of type 2 diabetes mellitus.


Asunto(s)
Diabetes Mellitus Tipo 2 , Medicina Tradicional China , Proceso de Jerarquía Analítica , China , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Prescripciones de Medicamentos , Humanos , Medicamentos sin Prescripción/uso terapéutico , Qi , Síndrome , Deficiencia Yin/tratamiento farmacológico
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