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1.
Oncol Rep ; 51(6)2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38695244

RESUMO

Following the publication of the above article, a concerned reader drew to the Editor's attention that certain of the Transwell cell migration and invasion assay data featured in Figs. 5C and 6C were strikingly similar to data appearing in different form in other articles written by different authors at different research institutes that had already been published elsewhere prior to the submission of this paper to Oncology Reports, or were submitted for consideration for publication at around the same time. In view of the fact that certain of these data had already apparently been published prior to the submission of this article for publication, the Editor of Oncology Reports has decided that this paper should be retracted from the Journal. The authors were asked for an explanation to account for these concerns, but the Editorial Office did not receive a reply. The Editor apologizes to the readership for any inconvenience caused. [Oncology Reports 37: 2743­2750, 2017; DOI: 10.3892/or.2017.5555].

2.
J Adv Res ; 2024 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-38471648

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is a common chronic liver disease with an increasing incidence worldwide. Single drug therapy may have toxic side effects and disrupt gut microbiota balance. Polyphenols are widely used in disease intervention due to their distinctive nutritional properties and medicinal value, which a potential gut microbiota modulator. However, there is a lack of comprehensive review to explore the efficacy and mechanism of combined therapy with drugs and polyphenols for NAFLD. AIM OF REVIEW: Based on this, this review firstly discusses the link between NAFLD and gut microbiota, and outlines the effects of polyphenols and drugs on gut microbiota. Secondly, it examined recent advances in the treatment and intervention of NAFLD with drugs and polyphenols and the therapeutic effect of the combination of the two. Finally, we highlight the underlying mechanisms of polyphenol combined drug therapy in NAFLD. This is mainly in terms of signaling pathways (NF-κB, AMPK, Nrf2, JAK/STAT, PPAR, SREBP-1c, PI3K/Akt and TLR) and gut microbiota. Furthermore, some emerging mechanisms such as microRNA potential biomarker therapies may provide therapeutic avenues for NAFLD. KEY SCIENTIFIC CONCEPTS OF REVIEW: Drawing inspiration from combination drug strategies, the use of active substances in combination with drugs for NAFLD intervention holds transformative and prospective potential, both improve NAFLD and restore gut microbiota balance while reducing the required drug dosage. This review systematically discusses the bidirectional interactions between gut microbiota and NAFLD, and summarizes the potential mechanisms of polyphenol synergistic drugs in the treatment of NAFLD by modulating signaling pathways and gut microbiota. Future researches should develop multi-omics technology to identify patients who benefit from polyphenols combination drugs and devising individualized treatment plans to enhance its therapeutic effect.

3.
Food Res Int ; 179: 114036, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38342549

RESUMO

Polysaccharides and polyphenols are biologically active components that coexist in Lycium barbarum fruit, and there may be interactions between them that affect the release of each other. In this study, polyphenols bound to L. barbarum polysaccharide (LBP) were characterized, and the stability of bound phenolics (BP) was assessed by gastrointestinal digestion and colon fermentation. The results showed that a total of 65 phytochemicals such as flavonoids, phenolic acids, and coumarins were identified by UPLC-MS/MS. Quantitative analysis revealed that the major phenolic constituents were rutin, p-coumaric acid, catechin, ferulic acid, protocatechuic acid, and gallic acid, and their contents were 58.72, 24.03, 14.24, 13.28, 10.39, and 6.7 mg GAE/100 g DW, respectively. The release of BP by gastric digestion and gastrointestinal digestion was 9.67 % and 19.39 %, respectively. Most polyphenols were greatly affected by gastric digestion, while rutin was released in small intestine. The BP were fully released (49.77 %) and metabolized by gut microorganisms, and a considerable number of intermediates and end-products were detected, such as phloroglucinol, phenylacetic acid, and phenyllactic acid. Microbiomics data emphasized the positive impact of LBP on gut bacteria of Bacteroides, Parabacteroides, and Clostridioides. These findings could deepen our understanding of the bioavailability and biological fate of BP and also provide reference data for nutrient release and utilization of L. barbarum as a whole.


Assuntos
Medicamentos de Ervas Chinesas , Polifenóis , Espectrometria de Massas em Tandem , Polifenóis/análise , Fermentação , Cromatografia Líquida , Fenóis/metabolismo , Digestão , Rutina/metabolismo , Colo/metabolismo
4.
Se Pu ; 41(9): 807-813, 2023 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-37712545

RESUMO

Carbamates are used in broad-spectrum insecticides and herbicides, and have highly efficient, low-residue, and long-lasting characteristics. However, this type of pesticide exerts mutagenic, teratogenic, carcinogenic, and other adverse effects, and its frequent use can exceed the recommended scope and limits. Research on the determination of carbamate pesticides mainly focuses on foods of plant origin and pays less attention to foods of animal origin. The methods for carbamate determination described in the current national standards have complicated operating procedures and low efficiency. Therefore, highly efficient and accurate methods for carbamate detection in milk must be established. In this work, a rapid method based on pass-through solid-phase extraction (SPE) purification coupled with ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was developed for the simultaneous determination of 10 carbamate pesticides in liquid milk. The pretreatment and instrument methods were systematically optimized. The milk sample was extracted with acetonitrile, and then purified using a Captiva EMR-Lipid filtration kit. The purified extract was separated on an ACQUITY UPLC BEH C18 column with mobile phase of methanol and 0.1% formic acid aqueous solution in gradient elution. The flow rate was 0.3 mL/min. Column temperature was 35 ℃. Quantitative analysis was performed using the external standard method with matrix matching curves. The 10 carbamate pesticides showed good linear relationships in the mass concentration range of 2-200 µg/L, with correlation coefficients greater than 0.999. The limits of detection (LODs) and quantification (LOQs) for the 10 carbamate pesticides were 0.045-0.23 and 0.15-0.77 µg/kg, respectively. Recovery tests were conducted using the blank-matrix method at three spiked levels of 15, 50, and 100 µg/kg, and good recoveries for the 10 carbamate pesticides were obtained. In particular, the recoveries for the three spiked levels of 15, 50, and 100 µg/kg were 68.7%-93.3% with relative standard deviations (RSDs) of 1.8%-8.0%. The proposed method is efficient, convenient, accurate, and suitable for the rapid detection of the 10 carbamate pesticides in liquid milk. Compared with the conventional NH2 and ENVITM-18 SPE columns used in the national standard determination method, the proposed method demonstrated better purification effects. The recoveries for aldicarb sulfoxide, aldicarb sulfone, methomyl, and carbaryl after purification using the Captiva EMR-Lipid kit increased from 60% to 80%. Thus, the proposed method is suitable for targets with strong polarity and gives measurement results with good repeatability and accuracy.


Assuntos
Resíduos de Praguicidas , Praguicidas , Animais , Carbamatos , Leite , Cromatografia Líquida , Espectrometria de Massas em Tandem , Lipídeos
5.
Hematology ; 28(1): 2247898, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37594298

RESUMO

BACKGROUND: Myeloid sarcoma (MS) is a very rare hematologic disorder. This study analyzes the early treatment options for patients with different types of MS and explores the prognostic factors of MS. METHODS: Patients aged 15 years and older with MS in the SEER database (diagnosed from 2000 to 2018) were selected, excluding those with an unknown first course of treatment, an unknown location of disease, and less than 1 month of follow-up. Statistical methods used a chi-square test to compare clinical characteristics; Kaplan-Meier analysis to compare survival differences; and Cox proportional risk models to identify prognostic factors affecting overall survival (OS). RESULTS: Data were collected from 472 patients: 244 patients with isolated myeloid sarcoma (IMS) and 228 patients with non-isolated myeloid sarcoma (non-IMS). IMS patients mostly chose local treatment, while non-IMS patients mostly chose chemotherapy. There was a significant difference in OS between IMS patients treated with combined treatment and those without treatment. For non-IMS, treated patients had longer OS than untreated, but the difference was not statistically significant. Among adult patients, those younger than 60 years had a better prognosis. Patients with the urinary system, digestive system, reproductive system and chest and abdomen as the initial site had a better prognosis. CONCLUSIONS: Early combination therapy in IMS patients had a longer OS, and chemotherapy combined with radiotherapy/surgery should be the treatment of choice. For non-IMS patients, early combination therapy did not show a significant advantage. Age and location of first presentation were independent factors affecting MS patients' long-term prognosis.


Assuntos
Sarcoma Mieloide , Adulto , Humanos , Sarcoma Mieloide/diagnóstico , Sarcoma Mieloide/epidemiologia , Sarcoma Mieloide/terapia , Prognóstico , Terapia Combinada , Bases de Dados Factuais , Estimativa de Kaplan-Meier
6.
Am J Transl Res ; 15(4): 2843-2849, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37193183

RESUMO

OBJECTIVE: To explore the clinical value of human fecal Syndecan-2 (SDC2) gene methylation in colorectal cancer screening. METHODS: There were 30 patients with colorectal cancer receiving treatment in Zhangjiakou First Hospital from January 2019 to December 2019 collected as the tumor group. There were 30 healthy people determined by a physical examination in 2019 collected as the normal group. The methylation level of fecal SDC2 gene and the level of serum tumor markers including carcinoembryonic antigen (CEA) and Carbohydrate antigen 19-9 (CA19-9) were analyzed. The diagnostic effects of fecal SDC2 methylation and serum tumor markers on colorectal cancer were compared. The area under curve (AUC) of different methods for colorectal cancer diagnosis were evaluated based on the receiver operating characteristic (ROC) curve. RESULTS: There was no distinction between the tumor group and the normal group in clinical basic data, including gender, age, and body mass index (P > 0.05), revealing the comparability between the two groups. The level of fecal SDC2 methylation in the tumor group was lower than that in the normal group (P < 0.05). CEA and CA19-9 in the tumor group were higher than those in the normal group (P < 0.05). Among the 30 colorectal cancers, 28 (93.33%) were positive for SDC2 gene methylation, 18 (60%) were positive for serum CEA, and 19 (63.33%) were positive for serum CA19-9. This indicated that the true positive rate of SDC2 gene methylation was higher than that of serum tumor markers (P < 0.05). The AUC of fecal SDC2 gene methylation was 0.981. These were higher than that of serum tumor markers (P < 0.05). CONCLUSIONS: Fecal SDC2 gene detection has a high sensitivity and specificity for colorectal cancer. It has a very ideal detection effect in detecting colorectal cancer patients in the population.

7.
Int Urol Nephrol ; 55(12): 3225-3236, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37103656

RESUMO

PURPOSE: Evidence on the prognostic impact of malnutrition was focused on patients with advanced kidney disease. The relationships between malnutrition and all-cause and cardiovascular mortality in patients with different severity of chronic kidney disease (CKD) have not been adequately addressed. We aimed to reveal the prevalence of malnutrition and its prognostic value in patients with different severity of CKD undergoing coronary angiography (CAG). METHODS: This was a multicenter, longitudinal, and retrospective cohort study of 12,652 patients with non-dialysis dependent CKD (defined as estimated glomerular filtration rate [eGFR] < 60 mL/min/1.73 m2) undergoing CAG from five tertiary hospitals between January 2007 and December 2020. The controlling nutritional status (CONUT) score was applied to assess nutritional status. Cox regression models and competing risk Fine and Gray models were used to examine the relationships between malnutrition, all-cause and cardiovascular mortality. Further stratified analysis was performed according to baseline CKD severity (mild, moderate and severe, defined by eGFR < 30, 30-44 and 45-59 ml/min/1.73 m2). RESULTS: During a median follow-up of 5.5 years (interquartile range: 3.2 to 8.6 years), 3801 patients (30.0%) died, and 2150 (17.0%) definitely died of cardiovascular disease. After controlling for confounders, patients had higher all-cause mortality (mild, moderate, and severe vs. absent: HR 1.27, 95 CI % [1.17-1.39]; HR 1.54, 95 CI % [1.39-1.71]; HR 2.22, 95 CI % [1.78-2.77], respectively; P for trend < 0.001) and cardiovascular mortality (mild, moderate and severe vs. absent: HR 1.35, 95 CI % [1.21-1.52]; HR 1.67, 95 CI % [1.45-1.92]; HR 2.10, 95 CI % [1.55-2.85], respectively; P for trend < 0.001) with the severity of malnutrition. In further stratified analysis, a similar prognostic impact of malnutrition was observed in patients with mild to moderate CKD, while mild malnutrition did not seem to have a consistent effect on severe CKD patients. CONCLUSION: Malnutrition is common among patients with mild to severe CKD undergoing CAG and is strongly associated with increased risk of all-cause and cardiovascular mortality. Malnutrition seems to have a modestly stronger impact on mortality in patients with mild to moderate CKD. This study was registered at Clinicaltrials.gov as NCT05050877.


Assuntos
Doenças Cardiovasculares , Desnutrição , Insuficiência Renal Crônica , Humanos , Angiografia Coronária , Estudos Retrospectivos , Estudos Longitudinais , Insuficiência Renal Crônica/epidemiologia , Desnutrição/complicações , Desnutrição/epidemiologia , Doenças Cardiovasculares/complicações , Fatores de Risco
8.
Molecules ; 28(5)2023 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-36903446

RESUMO

Idiopathic pulmonary fibrosis (IPF) is a chronic progressive interstitial lung disease with unknown etiology, high mortality and limited treatment options. It is characterized by myofibroblast proliferation and extensive deposition of extracellular matrix (ECM), which will lead to fibrous proliferation and the destruction of lung structure. Transforming growth factor-ß1 (TGF-ß1) is widely recognized as a central pathway of pulmonary fibrosis, and the suppression of TGF-ß1 or the TGF-ß1-regulated signaling pathway may thus offer potential antifibrotic therapies. JAK-STAT is a downstream signaling pathway regulated by TGF-ß1. JAK1/2 inhibitor baricitinib is a marketed drug for the treatment of rheumatoid arthritis, but its role in pulmonary fibrosis has not been reported. This study explored the potential effect and mechanism of baricitinib on pulmonary fibrosis in vivo and in vitro. The in vivo studies have shown that baricitinib can effectively attenuate bleomycin (BLM)-induced pulmonary fibrosis, and in vitro studies showed that baricitinib attenuates TGF-ß1-induced fibroblast activation and epithelial cell injury by inhibiting TGF-ß1/non-Smad and TGF-ß1/JAK/STAT signaling pathways, respectively. In conclusion, baricitinib, a JAK1/2 inhibitor, impedes myofibroblast activation and epithelial injury via targeting the TGF-ß1 signaling pathway and reduces BLM-induced pulmonary fibrosis in mice.


Assuntos
Fibrose Pulmonar Idiopática , Fator de Crescimento Transformador beta1 , Camundongos , Animais , Fator de Crescimento Transformador beta1/metabolismo , Bleomicina/farmacologia , Pulmão , Transdução de Sinais , Fibrose Pulmonar Idiopática/induzido quimicamente , Fibroblastos , Camundongos Endogâmicos C57BL
9.
Cephalalgia ; 43(4): 3331024231163131, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36946245

RESUMO

BACKGROUND: Pituitary adenylate cyclase-activating polypeptide (PACAP) is a multipotent neuropeptide widely distributed in the trigeminovascular system (TVS) and higher brain regions. At present, the underlying mechanism of PACAP/PACAP type1 (PAC1) receptor in migraine generation remains unclear. METHODS: The rat model of chronic migraine (CM) was established by repeated intraperitoneal injection of nitroglycerin (NTG). Von Frey filaments and hot plate tests were used to measure the mechanical and thermal thresholds. The expression levels of c-Fos, calcitonin gene-related peptide (CGRP), PACAP, PAC1, protein kinase A (PKA) and phosphorylated extracellular signal-regulated kinase (ERK) were assessed by western blotting or immunofluorescence staining. The internalization of PAC1 receptor was visualized by fluorescence microscope and laser scanning confocal microscope. RESULTS: The results showed that c-Fos and CGRP expression significantly increased after repeated administrations of NTG or PACAP. Pitstop2 notably improved hyperalgesia in CM rats, while PACAP6-38 offered no benefit. In addition, PACAP-induced PAC1 receptor internalization, PKA and ERK pathways activation were blocked by Pitstop2 instead of PACAP6-38. CONCLUSIONS: Our results demonstrate that inhibition of PAC1 receptor internalization could effectively improve allodynia in CM rats by restraining ERK signaling pathway activation in a chronic migraine rat model. Modulation of receptor internalization may be a novel perspective to explore specific mechanisms of PACAP signaling activation in the trigeminal vascular system.


Assuntos
Transtornos de Enxaqueca , Receptores de Polipeptídeo Hipofisário Ativador de Adenilato Ciclase , Ratos , Animais , Receptores de Polipeptídeo Hipofisário Ativador de Adenilato Ciclase/metabolismo , MAP Quinases Reguladas por Sinal Extracelular , Polipeptídeo Hipofisário Ativador de Adenilato Ciclase/farmacologia , Polipeptídeo Hipofisário Ativador de Adenilato Ciclase/metabolismo , Hiperalgesia , Sistema de Sinalização das MAP Quinases , Peptídeo Relacionado com Gene de Calcitonina/metabolismo
10.
Food Chem ; 401: 134122, 2023 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-36096003

RESUMO

To prepare pumpkin juice (PJ) rich in coenzyme Q10, this study analyzed the chemical composition, antioxidant activity, and gut microbiota of pumpkin juice fermented by Rhodobacter sphaeroides (RPJ). The number of viable bacteria in the juice reached 2.8 × 108 CFU/mL; the fermentation process mainly consumed glucose and sucrose; the total sugar content was reduced, ß-carotene was reduced, and a new antioxidant substance, coenzyme Q10, appeared at a content of 12.345 mg/L; levels of volatile alcohols, esters, and ketones significantly increased; and antioxidation ability improved, particularly the ferric ion reducing antioxidant power activity. The gut microbiota of mice shifted by increasing Lactobacillus and Bifidobacterium and protected the gut barrier by reducing Proteobacteria after 48 h of fermentation. Pumpkin juice fermented by Rhodobacter sphaeroides not only produces bioactive substances with antioxidant capacity but can also regulate the gut microbiota of mice.


Assuntos
Cucurbita , Microbioma Gastrointestinal , Rhodobacter sphaeroides , Camundongos , Animais , Antioxidantes/química , Sucos de Frutas e Vegetais , beta Caroteno , Açúcares , Glucose , Sacarose , Cetonas
11.
Reprod Sci ; 30(1): 233-246, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35715550

RESUMO

Non-obstructive azoospermia (NOA) is one of the most severe forms of male infertility, but its diagnosis biomarkers with high sensitivity and specificity are largely unknown. Transcription factors (TFs) play essential roles in many pathological processes in different diseases. Herein, we aimed to identify the TFs showing high diagnosis ability for NOA through machine learning algorithms. The transcriptome data of the testicular tissue from 11 control and 47 NOA subjects were set as the training dataset; meanwhile, 1665 TFs were retrieved from the HumanTFDB. Through the feature extraction methods, including genomic difference analysis, Lasso, Boruta, SVM-RFE, and logistic regression, ETV2, TBX2, and ZNF689 were ultimately screened and then were included in the random forest (RF) diagnosis model. The RF model displayed high predictive power in the training (F-measure = 1) and two external validation (n = 31, F-measure = 0.902; n = 20, F-measure = 0.941) cohorts. The seminal plasma and testicular biopsy samples of 20 control and 20 NOA patients were collected from the local hospital, and the expression levels of ETV2, TBX2, and ZNF689 were measured via RT-qPCR and immunohistochemistry. The RF model could also distinguish the NOA samples in the local cohort (F-measure = 0.741). Single-cell RNA sequencing analysis, which was based on the 432 testicular cell samples from an NOA patient, showed that ETV2, TBX2, and ZNF689 were all significantly associated with spermatogenesis. In all, a 3-TF random forest diagnosis model was successfully established, providing novel insights into the latent mechanisms of NOA.


Assuntos
Proteínas Reguladoras de Apoptose , Azoospermia , Proteínas com Domínio T , Fatores de Transcrição , Humanos , Masculino , Proteínas Reguladoras de Apoptose/genética , Azoospermia/diagnóstico , Azoospermia/genética , Azoospermia/patologia , Algoritmo Florestas Aleatórias , Testículo/metabolismo , Fatores de Transcrição/genética , Proteínas com Domínio T/genética
12.
Int J Biol Macromol ; 222(Pt B): 2054-2064, 2022 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-36209904

RESUMO

Apple polyphenols are abundantly present in apple pomace, and their applications are limited by the low efficiency of traditional extraction methods and the tendency to pollute the environment. Starch nanoparticles (SNPs) have received much attention due to their renewable, low cost and biocompatibility. The aim of this study was to prepare SNPs of different sizes from corn starch using ultrasonic-assisted chemical precipitation with adsorption of apple polyphenols, investigate the relationship between particle size and adsorption, while experiments were performed to assess antioxidant activity, simulate in vivo digestion and polyphenol release. The results showed that the smaller the particle size of SNPs the higher the adsorption of polyphenols, and the combination of characterization and adsorption kinetics showed that this adsorption was a physicochemical binding process. DPPH radical scavenging activity showed that polyphenols bound to SNPs were more stable than free polyphenols. In vitro simulation of digestion and release processes, SNPs loaded with polyphenols showed better anti-digestive properties, polyphenols are released in small amounts in gastric juices and continuously in intestinal juices. Our results provide a theoretical basis for the direct separation of polyphenols from fruit pomace polyphenol extracts using nanomaterials and the industrial utilization of polyphenol products.


Assuntos
Nanoestruturas , Polifenóis , Polifenóis/química , Amido/metabolismo , Frutas/química , Adsorção , Extratos Vegetais/química
13.
Int Immunopharmacol ; 113(Pt A): 109316, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36252483

RESUMO

BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive and fatal interstitial lung disease with high mortality and limited treatment. Only two drugs are currently approved for the treatment of IPF, but both have limitations and neither drug could prolong survival time of patients. The etiology of IPF is unclear, but there is growing evidence that B cells and B cell receptor signaling play important roles in the pathogenesis of IPF. Zanubrutinib is a small molecule inhibitor of Bruton's tyrosine kinase (BTK), which is a key enzyme downstream of B cell receptor signaling pathway, has approved for the treatment of mantle cell lymphoma (MCL) and chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL). While its role in pulmonary fibrosis remains unknown. In this study, we explored the potential effect and mechanisms of zanubrutinib on pulmonary fibrosis in vivo and in vitro. METHODS: In the in vivo experiments, different doses of zanubrutinib were administered in a mouse model of bleomycin-induced pulmonary fibrosis, and pathological manifestations and lung function indices were evaluated. In vitro experiments were performed using TGF-ß1-stimulated fibroblasts to evaluate the effect of zanubrutinib on the activation and autophagy phenotype of fibroblasts and to explore the underlying signaling pathway mechanism. RESULTS: In vivo experiments demonstrated that zanubrutinib effectively attenuated bleomycin (BLM)-induced pulmonary fibrosis in mice. An in vitro mechanistic study indicated that zanubrutinib suppresses collagen deposition and myofibroblast activation by inhibiting the TGF-ß1/Smad pathway and induces autophagy through the TGF-ß1/mTOR pathway. CONCLUSIONS: Zanubrutinib alleviated bleomycin-induced lung fibrosis in mice by inhibiting the TGF-ß1 signaling pathway.


Assuntos
Bleomicina , Fibrose Pulmonar Idiopática , Camundongos , Animais , Bleomicina/efeitos adversos , Fator de Crescimento Transformador beta1/metabolismo , Fibrose Pulmonar Idiopática/induzido quimicamente , Fibrose Pulmonar Idiopática/tratamento farmacológico , Fibrose Pulmonar Idiopática/metabolismo , Transdução de Sinais , Fibroblastos , Camundongos Endogâmicos C57BL , Receptores de Antígenos de Linfócitos B , Pulmão/patologia
14.
Cell Biochem Biophys ; 80(4): 755-761, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36068383

RESUMO

Zinc ion (Zn2+) is an important functional factor; however, excessive Zn2+ can be toxic. To understand the neurotoxicity of excessive Zn2+ and the underlying mechanism, PC12 cells were treated with excessive Zn2+ and Zn2+ plus N, N, N', N'-Tetrakisethylenediamine (TPEN), a zinc ion chelator agent. Trypan blue and 3-(4,5-dimethyl-2- thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide, thiazolyl blue tetrazolium bromide (MTT) assays were used to test cell viability; the relative kits were used to detect the activity of NOS synthase and the content of the receptor for advanced glycation end product (RAGE) in cells. We observed that excessive zinc caused PC12 cell damage and that TPEN partially reversed cell damage caused by excessive zinc. In addition, excessive zinc decreased total nitric oxide synthase (TNOS) activity in cells, in which constitutive nitric oxide synthase (cNOS) activity was significantly reduced; however, inducible nitric oxide synthase (iNOS) activity was extremely promoted. Moreover, excessive zinc upregulated the expression of RAGE, and TPEN effectively reversed the increase in RAGE induced by excessive zinc ions. Therefore, we concluded that excessive zinc caused PC12 cell damage, correlating with the inhibition of NOS and increase of RAGE induced in cells.


Assuntos
Azul Tripano , Zinco , Animais , Brometos/metabolismo , Morte Celular , Quelantes/farmacologia , Etilenodiaminas , Óxido Nítrico Sintase/metabolismo , Óxido Nítrico Sintase Tipo II/metabolismo , Células PC12 , Ratos , Receptor para Produtos Finais de Glicação Avançada/metabolismo , Zinco/metabolismo
15.
Front Pharmacol ; 13: 990475, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36120367

RESUMO

Gastrointestinal cancer (GIC) poses a serious threat to human health globally. Curcumin (CUR), a hydrophobic polyphenol extracted from the rhizome of Curcuma longa, has shown reliable anticancer function and low toxicity, thereby offering broad research prospects. Numerous studies have demonstrated the pharmacological mechanisms underlying the effectiveness of CUR against GIC, including the induction of apoptosis and autophagy, arrest of the cell cycle, inhibition of the epithelial-mesenchymal transition (EMT) processes, inhibition of cell invasion and migration, regulation of multiple signaling pathways, sensitization to chemotherapy and reversal of resistance to such treatments, and regulation of the tumor survival environment. It has been confirmed that CUR exerts its antitumor effects on GIC through these mechanisms in vitro and in vivo. Moreover, treatment with CUR is safe and tolerable. Newly discovered types of regulated cell death (RCD), such as pyroptosis, necroptosis, and ferroptosis, may provide a new direction for research on the efficacy of CUR against GIC. In this review, we discuss the recently found pharmacological mechanisms underlying the effects of CUR against GIC (gastric and colorectal cancers). The objective is to provide a reference for further research on treatments against GIC.

16.
Int Immunopharmacol ; 111: 109138, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35973369

RESUMO

Acute lung injury (ALI) is a disease characterized by pulmonary diffusion dysfunction and its exacerbation stage is acute respiratory distress syndrome (ARDS), which may develop to multiple organ failure and seriously threatens human health. ALI has high mortality rates and few effective treatments, thus effective protection measures for ALI are becoming increasingly important. Macrophages play a key regulatory role in the pathogenesis of ALI, and the degree of macrophage polarization is closely related to the severity and prognosis of ALI. In this study, we evaluated the effects of Zanubrutinib (ZB), a BTK small molecule inhibitor approved by the FDA for the treatment of cell lymphoma, on macrophage polarization and acute lung injury. In the in vivo study, we constructed a mouse model of Lipopolysaccharide (LPS)-induced acute lung injury and found that ZB could improve the acute injury of mouse lungs by inhibiting the secretion of proinflammatory factors and promoting the secretion of anti-inflammatory factors, reduce the number of inflammatory cells in alveolar lavage fluid, and then alleviate the inflammatory response. In vivo and in vitro studies have shown that ZB could inhibit the M1 macrophage polarization and promote the M2 macrophage polarization. Subsequent mechanistic studies revealed that ZB could inhibit the macrophage M1 polarization via targeting BTK activation and inhibiting JAK2/STAT1 and TLR4/MyD88/NF-κB signaling pathways, and promote the macrophage M2 polarization by promoting the activation of STAT6 and PI3K / Akt signaling pathways. In summary, ZB has shown therapeutic effect in LPS-induced acute lung injury in mice, which provides a potential candidate drug to treat acute lung injury.


Assuntos
Lesão Pulmonar Aguda , Lipopolissacarídeos , Lesão Pulmonar Aguda/induzido quimicamente , Lesão Pulmonar Aguda/tratamento farmacológico , Lesão Pulmonar Aguda/metabolismo , Animais , Humanos , Lipopolissacarídeos/farmacologia , Pulmão/patologia , Ativação de Macrófagos , Macrófagos , Camundongos , Camundongos Endogâmicos C57BL , Piperidinas , Pirazóis , Pirimidinas
17.
Eur J Med Chem ; 241: 114643, 2022 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-35961069

RESUMO

Idiopathic pulmonary fibrosis (IPF) is a highly fatal disease that lacks appropriate treatments and highly effective drugs. Many reported indicated that the TGF-ß1/Smad3 signaling pathway played a pivotal role in development of IPF. In this case, it was hypothesized that discovery novel compounds to block the TGF-ß1/Smad3 signaling pathway might be useful for treatment of IPF. Therefore, a high-throughput screening system based on stably transfected CAGA-NIH3T3 cells was established for discovering lead compounds which could validly suppress the TGF-ß1/Smad3 signal path. In this study, a series of novel Pleuromutilin derivatives were prepared and quickly evaluated by high-throughput assay. The lead compound 32 was discovered to be able to remarkably suppress the TGF-ß1/Smad3 pathway in vitro. Further biological evaluation revealed that compound 32 could remarkably decrease the myofibroblast stimulation and extracellular matrix (ECM) deposition. More importantly, compound 32 could remarkably mitigate bleomycin (BLM)-triggered lung fibrosis in mice models. Additionally, the lead compound possess excellent pharmacokinetics properties, good oral availability and low toxicity. In general, our study has demonstrated the potency of a novel Pleuromutilin derivative (compound 32), which might be a prospective candidate for developing anti-IPF medicines by suppress the TGF-ß1/Smad3 signal pathway.


Assuntos
Fibrose Pulmonar Idiopática , Fator de Crescimento Transformador beta1 , Animais , Bleomicina/metabolismo , Bleomicina/farmacologia , Bleomicina/uso terapêutico , Diterpenos , Fibroblastos , Ensaios de Triagem em Larga Escala , Fibrose Pulmonar Idiopática/tratamento farmacológico , Pulmão , Camundongos , Camundongos Endogâmicos C57BL , Células NIH 3T3 , Compostos Policíclicos , Fator de Crescimento Transformador beta1/metabolismo , Pleuromutilinas
18.
J Psychiatr Res ; 152: 375-383, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35797913

RESUMO

BACKGROUND: Impaired behavioral inhibition is a critical factor in drug addiction and relapse. Repetitive transcranial magnetic stimulation (rTMS) reduces the craving of heroin-addicted individuals for drug-related cues. However, it is unclear whether this technique also improves impaired behavioral inhibition and how improved behavioral inhibition affects craving. OBJECTIVE: The intermittent theta-burst stimulation (iTBS) has been recently shown to be non-inferior relative to rTMS for depression. Here, we aim to investigate the effect of iTBS on heroin-addicted individuals' behavioral inhibition and cue-induced craving and the relationship between the alteration of behavioral inhibition and craving. METHOD: 42 of 56 initially recruited individuals with the heroin-use disorder in the abstinent-course treatment were randomized to undergo active or sham iTBS to the left dorsolateral prefrontal cortex and received three daily iTBS treatments for 10 consecutive days. We measured participants' performance during a two-choice oddball task (80% standard and 20% deviant trials) and heroin-related cue-induced craving before and immediately after treatment. RESULTS: The group that received active iTBS showed significantly improved two-choice oddball task performance after 10 days of intervention compared to both pre-intervention and the group who received sham iTBS. Similarly, a significant reduction in cue-induced craving was observed after following the intervention in the active iTBS group but not the sham iTBS group. The moderation model indicated that iTBS categories play a significant moderating role in the relationship between accuracy cost changing and altered cue-induced craving. CONCLUSIONS: The iTBS treatment protocol positively affects behavioral inhibition in patients with heroin addiction. Improvements in behavioral inhibition can substantially reduce craving.


Assuntos
Fissura , Dependência de Heroína , Fissura/fisiologia , Sinais (Psicologia) , Heroína , Dependência de Heroína/terapia , Humanos , Córtex Pré-Frontal/fisiologia , Ritmo Teta , Estimulação Magnética Transcraniana/métodos
19.
Food Res Int ; 155: 110998, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35400417

RESUMO

Apples are rich in phenolic antioxidants, which have various beneficial effects on human health. The purposes of our study were to evaluate the effects of Lactobacillus fermentum 21828 fermentation on the phytochemical composition and bioactivity of Aksu (Fuji) apple juice (AJ), and to evaluate the hypoglycemic effect of fermented AJ (FAJ) and its effect on intestinal flora. Fermentation altered the phytochemistry and enhanced the biological activity (hypoglycemic and antioxidant activities) of AJ. FAJ improved fasting blood glucose and insulin levels in diabetic mice, regulated blood lipid metabolism, reduced oxidative damage, restored damaged islet cells, and reshaped the intestinal flora of diabetic mice by increasing the relative abundance of Actinobacteria, Bifidobacteria, and Faecalibaculum. The results indicate that FAJ is a fermented product that is rich in bioactive components and has potential hypoglycemic and antioxidant activities.


Assuntos
Diabetes Mellitus Experimental , Microbioma Gastrointestinal , Malus , Animais , Antioxidantes/metabolismo , Antioxidantes/farmacologia , Hipoglicemiantes/farmacologia , Malus/química , Camundongos , Compostos Fitoquímicos/farmacologia
20.
Dis Markers ; 2022: 2143892, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35280438

RESUMO

Immunosenescence refers to the immune system undergoing a series of degenerative changes with advancing age and is tightly associated with the initiation and progression of cancers. However, the immunosenescence-related genes as critical biomarkers for bladder cancer (BLCA) have not been systematically analyzed. We retrieved the immunosenescence-related genes from the public database and verified their association with hallmarks of immunosenescence based on The Cancer Genome Atlas (TCGA) cohort. Through gene pairing, Lasso, and univariate Cox regression, an 8-gene pair model was constructed to evaluate the overall survival of BLCA, which was then validated in the training cohort (P < 0.001, n = 396), two external validation cohorts (P < 0.05, n = 165; P < 0.001, n = 224), and local samples (P < 0.05, n = 10). We also downloaded the clinical information and gene expression matrices of other 32 different cancers from TCGA. The established model showed significant predictive value for the prognosis in 15 cancers (P < 0.05). The risk model could also serve as a promising predictor for immunotherapeutic response, which has been verified by the TIDE algorithm (P < 0.05), IMvigor210 dataset (P < 0.01, n = 298), and other two datasets correlated with immunotherapy (P < 0.05, n = 56; P = 0.17, n = 27). The TCGA dataset, in vitro cell experiments, and pan-cancer analysis displayed that the gene signature was associated with cisplatin sensitivity (P < 0.05). Overall, we proposed a novel immunosenescence-related gene signature to predict prognosis, immunotherapeutic response, and cisplatin sensitivity of BLCA, which were validated in different independent cohorts, local samples, and pan-cancer analyses.


Assuntos
Antineoplásicos/uso terapêutico , Cisplatino/uso terapêutico , Imunossenescência/genética , Neoplasias da Bexiga Urinária/tratamento farmacológico , Neoplasias da Bexiga Urinária/genética , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Imunoterapia , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Transcriptoma , Resultado do Tratamento , Neoplasias da Bexiga Urinária/mortalidade
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