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1.
Environ Res ; 250: 118442, 2024 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-38368919

RESUMO

Heavy metal pollution, particularly the excessive release of copper (Cu), is an urgent environmental concern. In this study, sodium lignosulfonate/carboxymethyl sa-son seed gum (SL-Cg-g-PAA) designed for remediation of Cu-contaminated water and soil was successfully synthesized through a free radical polymerization method using lignin as a raw material. This hydrogel exhibits remarkable Cu adsorption capability when applied to water, with a maximum adsorption capacity reaching 172.41 mg/g. Important adsorption mechanisms include surface complexation and electrostatic attraction between Cu(Ⅱ) and oxygen-containing functional groups (-OH, -COOH), as well as cation exchange involving -COONa and -SO3Na. Furthermore, SL/Cg-g-PAA effectively mitigated the bioavailability of heavy metals within soil matrices, as evidenced by a notable 14.1% reduction in DTPA extracted state Cu (DTPA-Cu) content in the S4 treatment (0.7% SL/Cg-g-PAA) compared to the control group. Concurrently, the Cu content in both the leaves and roots of pakchoi exhibited substantial decreases of 55.19% and 36.49%, respectively. These effects can be attributed to the precipitation and complexation reactions facilitated by the hydrogel. In summary, this composite hydrogel is highly promising for effective remediation of heavy metal pollution in water and soil, with a particular capability for the immobilization of Cu(Ⅱ) and reduction of its adverse effects on ecosystems.

2.
J Med Chem ; 66(24): 16843-16868, 2023 12 28.
Artigo em Inglês | MEDLINE | ID: mdl-38079530

RESUMO

Survivin is a novel attractive target for cancer therapy; however, it is considered undruggable because it lacks enzymatic activities. Herein, we describe our efforts toward the discovery of a novel series of 4,11-dioxo-4,11-dihydro-1H-anthra[2,3-d]imidazol-3-ium derivatives as survivin inhibitors by targeting ILF3/NF110. Intensive structural modifications led us to identify a lead compound AQIM-I, which remarkably inhibited nonsmall cell lung cancer cells A549 with an IC50 value of 9 nM and solid tumor cell proliferation with more than 700-fold selectivity against human normal cells. Further biological studies revealed that compound AQIM-I significantly inhibited survivin expression and colony formation and induced ROS production, apoptosis, cell cycle arrest, DNA damage, and autophagy. Furthermore, the promoter-luciferase reporter assay showed that AQIM-I attenuated the survivin promoter activity enhanced by the overexpression of ILF3/NF110 in a concentration-dependent manner, and specific binding (KD = 163 nM) of AQIM-I to ILF3/NF110 was detected by surface plasmon resonance.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Humanos , Survivina/metabolismo , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Apoptose , Proteínas Inibidoras de Apoptose , Linhagem Celular Tumoral , Proliferação de Células , Proteínas do Fator Nuclear 90/genética , Proteínas do Fator Nuclear 90/metabolismo
3.
Front Psychiatry ; 14: 1178834, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37575569

RESUMO

Objective: The prevalence of mental distress has been noted in shelter hospitals set up for COVID-19. Potential risk demographic and hospitalization factors were screened. We also aimed to determine whether humanistic care established in the shelter hospital was effective in ameliorating mental distress. Methods: A cross-sectional observational survey-based single-centered study was conducted from 28th April to 5th May 2022 during the COVID-19 pandemic in Shanghai. Asymptomatic adult inpatients and those with mild symptoms were recruited for this study, and humanistic care measures were carried out by the administrative office according to the Work Program on Psychological Assistance and Social Work Services at the Shelter Hospital launched on 5th March 2020. Symptoms of mental distress, such as reported stress, anxiety, depression, and insomnia were measured using the Chinese Stress Response Questionnaire-28, the Chinese version of Generalized Anxiety Disorder-7, Patient Health Questionnaire-9, and Insomnia Severity Index-7, respectively. Results: In total, 1,246 out of 9,519 inpatients, including 565 (45.35%) women and 681 (54.65%) men, with a median age of 36 years responded to the survey. The overall prevalence of stress, anxiety, depression, and insomnia in inpatients was 94 (7.54%), 109 (8.75%), 141 (11.32%), and 144 (11.56%), respectively. Mental distress was aggravated by COVID-19-related symptoms, comorbidities, and prolonged hospital stays. A stable internet connection was the most effective measure to reduce stress and depression. Offering inpatient with study or work facilitations, and mental health education help to ameliorate anxiety and depression. Organizing volunteering was a potential protective factor against stress. Conclusion: Humanistic care is crucial and effective for protecting against mental distress, which should be emphasized in shelter hospitals.

4.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 54(4): 771-776, 2023 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-37545072

RESUMO

Objective: To explore the predictive effect of preoperative liver function indicators for intraoperative massive blood transfusion in orthotopic liver transplantation and to establish a prediction model. Methods: We retrospectively analyzed the relevant data of 607 patients who underwent orthotopic liver transplantation in the Department of Liver Surgery, West China Hospital, Sichuan University between January 1, 2015 and June 30, 2021. According to the intraoperative transfusion volume of leukocyte-reduced red blood cells in additive solution, the patients were divided into a massive blood transfusion (MBT) group and a non-massive blood transfusion (NMBT) group. Univariate and multivariate logistic regressions were performed to analyze the risk factors of intraoperative MBT in orthotopic liver transplantation, the calibration of the predictive model was assessed by Hosmer-Lemeshow test, and the discrimination power of the predictive model was measured by area under the curve ( AUC) of the receiver operating characteristic (ROC) curve. Results: According to the results of logistic regression, alanine transaminase (ALT), aspartate transaminase (AST), total bilirubin (TBIL), direct bilirubin (DBIL), albumin (ALB), and Child-Pugh score showed no correlation with the risk of MBT in orthotopic liver transplantation operation. Platelet count (PLT) (odds ratio [ OR]=0.90, 95% confidence interval [ CI]: 0.09-0.19, P=0.02), international normalized ratio (INR) ( OR=19.43, 95% CI: 7.64-19.44, P<0.01), prothrombin time (PT) ( OR=1.43, 95% CI: 1.25-1.63, P<0.01), and activated partial thromboplastin time (APTT) ( OR=0.92, 95% CI: 0.90-0.95, P<0.01) were identified as the risk factors of intraoperative MBT in orthotopic liver transplantation. The Hosmer-Lemeshow test showed that the predictive model had good calibration ( χ 2=9.06, P=0.48) and discrimination power ( AUC=0.80, 95% CI 0.766-0.834, P<0.01). Conclusion: A predictive model based on the preoperative PLT, INR, PT, and APTT of patients undergoing orthotopic liver transplantation was established and can be used to predict the risk of intraoperative MBT in liver transplantation patients.


Assuntos
Transfusão de Sangue , Transplante de Fígado , Humanos , Transfusão de Sangue/estatística & dados numéricos , Transplante de Fígado/efeitos adversos , Estudos Retrospectivos , Fatores de Risco , Testes de Função Hepática , Valor Preditivo dos Testes , Masculino , Feminino , Adulto , Pessoa de Meia-Idade
5.
Environ Sci Pollut Res Int ; 30(25): 66638-66650, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37101212

RESUMO

La-based adsorbents are widely used for controlling phosphate concentration in water bodies. In order to explore the effect of different B-site metals regulating La-based perovskites on phosphate adsorption, three La-based perovskites (LaBO3, B = Fe, Al, and Mn) were prepared using the citric acid sol-gel method. Adsorption experiments showed that LaFeO3 exhibited the highest adsorption capacity for phosphate, which was 2.7 and 5 times higher than those of LaAlO3 and LaMnO3, respectively. The characterization results demonstrated that LaFeO3 has dispersed particles exhibiting larger pore size and more pores than LaAlO3 and LaMnO3. Spectroscopy analysis and density functional theory calculation results showed that different B-positions cause a change in the type of perovskite crystals. Among them, the differences between lattice oxygen consumption ratio, zeta potential and adsorption energy are the main reasons for the differences in adsorption capacity. In addition, the adsorption of phosphate by La-based perovskites were well fitted with Langmuir isotherm and pursues the pseudo-second-order kinetic models. The maximum adsorption capacities were 33.51, 12.31 and 6.61 mg/g for LaFeO3, LaAlO3 and LaMnO3, respectively. The adsorption mechanism was mainly based on inner-sphere complexation and electrostatic attraction. This study provides an explanation for the influence of different B sites on phosphate adsorption by perovskite.


Assuntos
Fosfatos , Poluentes Químicos da Água , Adsorção , Fosfatos/química , Lantânio/química , Óxidos , Cinética , Poluentes Químicos da Água/química
7.
J Bone Oncol ; 38: 100467, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36619849

RESUMO

Aims: A histone H3F3A (H3.3) mutation involving a substitution in H3.3 G34 recently has been reported in GCTB within the frequency range (from 69 % to 96 %) and is a helpful diagnostic indicator of GCTB. However, the relationship between H3F3A mutations and the clinicopathological feature of GCTB involving non-long bones (irregular bones and small bones) is unclear. Methods and results: H3F3A mutations were observed in a cohort of specimens (230 samples of GCTB) using immunohistochemistry and Sanger sequencing. The relationship between H3F3A mutations and the clinicopathological characteristics of patients with GCTB occurring in the non-long bones of the appendicular skeleton was investigated. No significant difference between H3F3A mutations in GCTB arising in non-long bones and the classic sites was found (P = 0.483). GCTB in non-long bones occurred more common in female (31/49, 63.3 %) than in male patients (P = 0.016). GCTB with H3.3 G34L/V/R mutation occurred more often in younger patients compared with those with H3.3 G34W mutation (P = 0.009). The majority of GCTB with soft tissue extension developed in irregular bones but not in small bones (P = 0.061). The H3.3 G34L/V/R mutations rate (7/45) in the non-long bones was significantly higher than that in long bones. The recurrence rate of the GCTB in long bones and non-long bones was 23.3 % (45/193) including 43 cases with local recurrene and 2 cases with lung metastasis. No recurrence occurred in cases with G34V/L/R mutations. Conclusions: H3F3A was an effective diagnostic marker for GCTB of the non-long bones. The younger patients with GCTB of the non-long bones harboured H3.3 G34L/V/R mutations and may had a female preference and rarely recurrent.

8.
J Clin Pathol ; 76(6): 367-373, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36604179

RESUMO

AIMS: To elucidate the clinicopathological features and the diagnostic value of mutation specific antibody H3F3 K36M of chondroblastoma (CB) in China. METHODS: Clinicopathological profiles were retrieved, and immunohistochemistry was performed on 185 CB specimens and the control group. RESULTS: Our series included 307 patients with a mean age of 22.1 years. Long tubular bones (63.8%, 196/307) were most commonly involved, followed by short bones of the hands and feet (22.1%, 68/307), sesamoid bones (8.1%, 25/307), flat bones and irregular bones (5.9%, 18/307). The most commonly involved site was the proximal femur, followed by distal femur, proximal humerus and calcaneus. The average age in the long bones group (20.3 years) was significantly younger than the short bones group (24.9 years) (p<0.001), sesamoid bones group (24.4 years) (p=0.02) and flat bones and irregular bones group (29.1 years) (p<0.001). Microscopically, aneurysmal bone cyst-like change (63.6%, 117/184), necrosis (43.5%, 80/184) and chicken-wire calcification (26.1%, 48/184) were variably noted. In rare cases, cortical destruction, soft tissue and lymphovascular invasion were identified. Positive immunoreaction with H3F3 K36M was examined in all non-decalcified, all EDTA decalcified, 87.1% hydrochloric acid (HCl) decalcified CB samples and the high-grade sarcoma secondary to CB, but not the control group. CONCLUSIONS: CB usually involves the long tubular bones in younger age group. H3F3 K36M can identify K36M mutation with 100% specificity and 100% sensitivity in non-decalcified and EDTA decalcified samples, more than 80% sensitivity in HCl decalcified samples. Virtually, all CBs harbour an H3K36M mutation.


Assuntos
Neoplasias Ósseas , Condroblastoma , Humanos , Anticorpos , Osso e Ossos/patologia , Neoplasias Ósseas/diagnóstico , Neoplasias Ósseas/genética , Neoplasias Ósseas/patologia , Condroblastoma/diagnóstico , Condroblastoma/genética , Condroblastoma/patologia , Ácido Edético
9.
Cell Mol Biol (Noisy-le-grand) ; 69(14): 51-61, 2023 Dec 20.
Artigo em Inglês | MEDLINE | ID: mdl-38279482

RESUMO

Cells associated with cancer (CAFs) contribute significantly to the stroma of a tumor microenvironment (TME), which is related to the occurrence, treatment, and prognosis of lung adenocarcinoma (LUAD). Therefore, this study investigated the function of CAF-associated genes in the microenvironment of LUAD. The Cancer Genome Atlas (TCGA) database was used to download RNA-seq data from the TCGA Lung Adenocarcinoma cohort (TCGA-LUAD). The GSE68465 dataset, as the external validation set, was from the Gene Expression Omnibus (GEO) database. Besides, CAF-associated genes were sourced from the GeneCards and Molecular Signatures Database (MsigDB). For LUAD, differentially expressed CAF-related genes were selected from overlapping CAF and LUAD patient and control samples. Next, LASSO and Univariate Cox analyses were used to construct the risk model. Additionally, an analysis of Cox regression was used to construct a nomogram. Next, the immune infiltration in malignant tumour tissues was compared between high- and low-risk groups using Estimation of STromal and Immune cells in MAlignant Tumours (ESTIMATE) tissues and Cell-type Identification by Estimating Relative Subsets of RNA Transcripts (CIBERSORT). The sensitivity differences of immunotherapy between the two risk groups were estimated by Tumor Immune Dysfunction and Exclusion (TIDE), and compared by rank-sum test. Finally, the model genes were detected by fluorescent real-time quantitative polymerase chain reaction (qRT-PCR). A total of 57 DE-CAFGs were acquired, and 9 of them (SHCBP1, CCNA2, AKAP12, CCNB1, GALNT3, SCGB1A1, CPS1, CDC6, and CXCL13) were selected as prognostic biomarkers. The Cox independent prognosis revealed the RiskScore and Stage were the two LUAD independent prognosis factors Moreover, 11 types of immune cells (memory B cells, resting natural killer cells (NK cells), Eosinophils, Macrophages M0, CD4 memory resting T cells, CD4 memory activated T cells, resting Mast cells, naive B cells, T cells regulatory (Tregs), neutrophils, and plasma cell), and 18 human leukocyte antigen (HLA) genes were different with the two risk groups. Lastly, the TIDE analysis showed differences between the two risk groups for TIDE, T cell dysfunction, and T cell exclusion, PD-L1 treatment scores. Lastly, Both LUAD and normal samples expressed the 9 model genes differently. A CAF-related prognostic model was constructed, which may have potential immunotherapy guiding significance for LUAD patients.


Assuntos
Adenocarcinoma de Pulmão , Fibroblastos Associados a Câncer , Neoplasias Pulmonares , Humanos , Adenocarcinoma de Pulmão/genética , Adenocarcinoma de Pulmão/terapia , Imunoterapia , Linfócitos T CD4-Positivos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/terapia , Microambiente Tumoral/genética , Proteínas Adaptadoras da Sinalização Shc
10.
Front Neurosci ; 16: 992130, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36507338

RESUMO

Mood disorders, such as anxiety and depression, are commonly found in people suffering from chronic pain. Serotonin-norepinephrine reuptake inhibitors (SNRIs) are potential in alleviating chronic pain and are the first-line option for anxiety disorder. The anterior cingulate cortex (ACC) plays a vital role in chronic pain-induced anxiety, but its role in the therapeutic effects of SNRIs remains largely unclear. We used complete Freund's adjuvant (CFA) in this current study to induce chronic inflammatory pain. Von Frey test was used to measure the mechanical withdrawal threshold. The elevated plus maze test (EPM) and the novelty-suppressed feeding test (NSF) were used to measure anxiety-like behaviors. Twenty-one days after the modeling, anxiety-like behaviors were successfully induced in CFA mice, and a 3-day intraperitoneal injection of duloxetine attenuated such behaviors. While, mechanical hyperalgesia was also improved. Then, we locally infused duloxetine in ACC for 3 days only to find out its analgesic effect in CFA mice. Furthermore, we used fiber photometry to discover decreased glutamatergic excitability and enhanced serotonin concentration in ACC after intraperitoneal injection of duloxetine. Overall, this study proposed a potential mechanism for the analgesic effect of duloxetine and shed light on further studies on the mechanism of its anxiolytic effect in chronic pain-induced anxiety.

11.
Diagnostics (Basel) ; 12(11)2022 Nov 11.
Artigo em Inglês | MEDLINE | ID: mdl-36428825

RESUMO

BACKGROUND: This study aims to investigate isocitrate dehydrogenase gene mutations in patients with the non-hereditary skeletal disorders of Ollier disease and Maffucci syndrome, particularly in the extraosseous tumours. METHODS: A total of 16 tumours from three patients with Ollier disease and three patients with Maffucci syndrome were collected. Sanger sequencing was applied to determine the hotspot mutations of IDH1 and IDH2 genes in multiple neoplastic tissues. RESULTS: A majority of the tumours displayed an IDH1 mutation (p.R132C in 11 tumours including the paediatric ovarian tumour from one patient with Ollier disease, 4 cutaneous haemangiomas from three patients with Maffucci syndrome, 5 enchondromas and 1 chondrosarcoma; p.R132H in 2 cartilaginous tumours from one patient). CONCLUSIONS: IDH1 mutations were demonstrated in multiple cartilaginous tumours and extraskeletal neoplasms in this case series. Specifically, identical IDH1 mutations were confirmed in the separate lesions of each patient. These results are in concordance with findings that have been reported. However, here, we additionally reported the first case of Ollier disease with an ovarian tumour, which harboured the identical IDH1 mutation with the corresponding cartilaginous tumour. We further provided evidence that IDH mutations are the potential genetic links among the multiple neoplastic lesions of Ollier disease and Maffucci syndrome.

12.
Neuropharmacology ; 220: 109259, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-36126726

RESUMO

Somatic symptom disorder (SSD), which occurs in about 5-7 percent of the adult population, involves heightened physical and emotional sensitivity to pain. However, its neural mechanism remains elusive and thus hinders effective clinical intervention. In this study, we employed chronic restraint stress (CRS)-induced hyperalgesia as a mouse model to investigate the neural mechanism underlying SSD and its pharmacological treatment. We found that CRS induced hyperactivity of anterior cingulate cortex (ACC), whereas chemogenetic inhibition of such hyperactivity could prevent CRS-induced hyperalgesia. Systematic application and ACC local infusion of fluoxetine alleviated CRS-induced hyperalgesia. Moreover, we found that fluoxetine exerted its anti-hyperalgesic effects through inhibiting the hyperactivity of ACC and upregulating 5-HT1A receptors. Our study thus uncovers the functional role of 5-HT signaling in modulating pain sensation and provides a neural basis for developing precise clinical intervention for SSD.


Assuntos
Fluoxetina , Hiperalgesia , Animais , Fluoxetina/farmacologia , Fluoxetina/uso terapêutico , Giro do Cíngulo , Hiperalgesia/tratamento farmacológico , Camundongos , Dor/tratamento farmacológico , Serotonina
13.
Toxicol Mech Methods ; 32(5): 325-332, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34749575

RESUMO

BACKGROUNDS: miR-26a-5p is a short noncoding RNA that is abnormally expressed in drug-induced liver injury (DILI), but its pathophysiologic role in the mechanism of disease in DILI is still vague. METHODS: The expression of miR-26a-5p, viability of hepatic stellate cells (HSCs) proliferation, and apoptosis were explored via real-time PCR, CCK-8 assay, Tunel fluorescence, and flow cytometry. The expression of Bid was detected via Western blot assays, real-time PCR, and immunofluorescence. The apoptosis-associated proteins were determined through Western blot. The interaction between miR-26a-5p and Bid was measured via Dual luciferase reporter assay. RESULTS: miR-26a-5p expression was greatly decreased in HSCs and serum treated with azithromycin, simvastatin and diclofenac sodium, respectively. Hepatocyte viability was largely suppressed while hepatocyte apoptosis was markedly increased in DILI. Correspondingly, the apoptosis-associated proteins including Bid, caspase-8 and cytochrome C in HSCs were significantly upregulated when treated with either of these drugs. Moreover, miR-26a-5p interacted with Bid, and hepatocyte proliferation and apoptosis influenced by miR-26a-5p mimics were obviously reversed when co-treated with overexpressed Bid plasmids. CONCLUSIONS: miR-26a-5p played a protective role against DILI via targeting Bid.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas , MicroRNAs , Apoptose/genética , Proteínas Reguladoras de Apoptose , Proliferação de Células , Doença Hepática Induzida por Substâncias e Drogas/genética , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Humanos , MicroRNAs/genética , MicroRNAs/metabolismo
14.
J Psychiatr Res ; 140: 468-473, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34147934

RESUMO

The high prevalence of somatic symptom disorder (SSD) led to cumulative burdens to the medical system. However, the pathogenesis of this disease still remains unclear. Graph theoretical analysis discovered altered network topology across various psychiatric disorders, yet alteration in the topological structure of brain functional network in SSD patients is still unexplored. Catastrophizing is a common cognitive distortion in SSD. We hypothesize that the network topological metrics of SSD should be altered, and should correlate with catastrophizing scales. 32 medication-naïve, first-episode SSD patients and 30 age, gender matched HCs were recruited. The 17-item Hamilton Depression Rating Scale (HAMD-17), Hamilton Anxiety Rating Scale (HAMA) and Cognitive Emotion Regulation Questionnaire (CERQ) were accessed. Functional MRI were scanned and brain functional networks were constructed based on 166 anatomically cerebrum regions from the automated anatomical labeling 3 (AAL3) template. Network topological metrics were calculated and compared between the two groups. Correlation between these metrics and clinical scales were also calculated. Network global efficiency of SSD was significantly lower than that of HC. Nodal global efficiency of the left subgenual anterior cingulate cortex (sgACC) of SSD was significantly lower than that of HC. FCs between the left sgACC and other 21 seed nodes were significantly declined in SSD in comparison with HC. In SSD group, HAMD total score was significantly negatively correlated with the connection between the left medial superior frontal gyrus and the left sgACC. CERQ catastrophizing score was significantly negatively correlated with nodal global efficiency of left sgACC and with the FCs between the left sgACC and other 13 seed nodes. Catastrophizing could reflect the specific sgACC-centered dysfunction of brain network global efficiency of SSD. The left sgACC may be a future treatment target of dealing with catastrophizing, which is a core cognitive distortion of SSD.


Assuntos
Giro do Cíngulo , Sintomas Inexplicáveis , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Catastrofização , Giro do Cíngulo/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética
15.
Bioorg Med Chem ; 36: 116094, 2021 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-33667898

RESUMO

EGFR inhibitors represent a significant milestone for treatment of non-small cell lung cancer, however, they suffer from the acquired drug resistance. Utilizing osimertinib as the lead compound, this work has explored the structural modifications on the indole and pyrimidine rings of osimertinib to generate novel osimertinib derivatives. The in vitro enzymatic and cellular studies showed that the derivatives possessed high selectivity towards double mutant EGFR and potent antitumor activity. Particularly, compound 6b-1, the most active compound, exhibited excellent inhibitory activity against double mutant EGFR (IC50 = 0.18 nM) and wild-type EGFR (IC50 = 2.89 nM) as well as H1975 cells (IC50 = 1.44 nM). Western blot analysis showed that 6b-1 completely inhibited double mutant EGFR and Erk phosphorylation. In vivo test using xenograft model indicated that compound 6b-1 had better antitumor efficacy than osimertinib. More importantly, 6b-1 displayed many advantages in the pharmacokinetic study, including better oral bioavailability and metabolism character.


Assuntos
Acrilamidas/farmacologia , Compostos de Anilina/farmacologia , Antineoplásicos/farmacologia , Descoberta de Drogas , Indóis/farmacologia , Inibidores de Proteínas Quinases/farmacologia , Pirimidinas/farmacologia , Acrilamidas/síntese química , Acrilamidas/química , Compostos de Anilina/síntese química , Compostos de Anilina/química , Antineoplásicos/síntese química , Antineoplásicos/química , Proliferação de Células/efeitos dos fármacos , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , Receptores ErbB/antagonistas & inibidores , Receptores ErbB/genética , Receptores ErbB/metabolismo , Humanos , Indóis/química , Simulação de Acoplamento Molecular , Estrutura Molecular , Mutação , Inibidores de Proteínas Quinases/síntese química , Inibidores de Proteínas Quinases/química , Pirimidinas/química , Relação Estrutura-Atividade , Células Tumorais Cultivadas
16.
Neuropsychiatr Dis Treat ; 17: 757-764, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33727819

RESUMO

OBJECTIVE: Catastrophizing is commonly co-occurrence with anxiety in somatic symptom disorder (SSD). However, the quantitative relationship between catastrophizing and anxiety in SSD and its underlying neuropsychopathology remains unclear. METHODS: To address the issue, twenty-eight SSD patients and twenty-nine healthy controls (HCs) completed the Hamilton anxiety scale and the catastrophizing subscale of the cognitive emotion regulation questionnaire. Then they underwent structural magnetic resonance imaging and voxel-based morphometry analysis was performed to obtain gray matter density (GMD) of the dorsomedial prefrontal cortex (dmPFC). RESULTS: Independent samples t-tests showed no significance between SSD patients and HCs in the scores on the catastrophizing subscale and GMD of the dmPFC. However, correlation analysis found that catastrophizing was significantly positively associated with anxiety in SSD. Further, mediation analyses revealed that GMD of the dmPFC (bilateral medial Brodmann area 8) mediated the relationship between catastrophizing and anxiety in SSD. CONCLUSION: These findings support Kirmayer's disease model of SSD that catastrophic interpretations of somatic symptoms resulted in increased anxiety and demonstrate that the dmPFC may be a potential neural site linking catastrophizing and anxiety in SSD.

17.
J Clin Pathol ; 74(5): 321-326, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33589531

RESUMO

AIMS: Osteosarcoma (OS) is the most common primary malignant tumour of the bone. However, further improvement in survival has not been achieved due to a lack of well-validated prognostic markers and more effective therapeutic agents. Recently, the c-Myc-phosphoribosyl pyrophosphate synthetase 2 (PRPS2) pathway has been shown to promote nucleic acid metabolism and cancer cell proliferation in malignant melanoma; phosphorylated mammalian target of rapamycin (p-mTOR) has been upregulated and an effective therapeutic target in OS. However, the p-mTOR-PRPS2 pathway has not been evaluated in OS. METHODS: In this study, the expression level of PRPS2, p-mTOR and marker of proliferation (MKI-67) was observed in a cohort of specimens (including 236 OS cases and 56 control samples) using immunohistochemistry, and the association between expression level and clinicopathological characteristics of patients with OS was analysed. RESULTS: PRPS2 protein level, which is related to tumour proliferation, was higher in OS cells (p=0.003) than in fibrous dysplasia, and the higher PRPS2 protein level was associated with a higher tumour recurrence (p=0.001). In addition, our statistical analysis confirmed that PRPS2 is a novel, independent prognostic indicator of OS. Finally, we found that the expression of p-mTOR was associated with the poor prognosis of patients with OS (p<0.05). CONCLUSIONS: PRPS2 is an independent prognostic marker and a potential therapeutic target for OS.


Assuntos
Neoplasias Ósseas/enzimologia , Neoplasias Femorais/enzimologia , Osteossarcoma/enzimologia , Ribose-Fosfato Pirofosfoquinase/análise , Neoplasias Ósseas/mortalidade , Neoplasias Ósseas/patologia , Neoplasias Ósseas/cirurgia , Proliferação de Células , Criança , Pré-Escolar , Feminino , Neoplasias Femorais/mortalidade , Neoplasias Femorais/patologia , Neoplasias Femorais/cirurgia , Humanos , Imuno-Histoquímica , Lactente , Antígeno Ki-67/análise , Masculino , Recidiva Local de Neoplasia , Osteossarcoma/mortalidade , Osteossarcoma/patologia , Osteossarcoma/cirurgia , Fosforilação , Serina-Treonina Quinases TOR/análise , Análise Serial de Tecidos , Resultado do Tratamento
18.
Life Sci ; 270: 119071, 2021 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-33515562

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) has a high incidence and mortality rate, and a rapid course of clinical development. Although miR-125b is closely associated with the pathogenesis of liver fibrosis and hepatocellular carcinoma, the role of miR-125b in NAFLD remains unknown. METHODS: The levels of TNF-α, IL-6, and IL-1ß expression were examined via ELISA assays. Real-time PCR was used to determine the levels of miR-125b and tumor necrosis factor alpha-induced protein 3 (TNFAIP3) expression. The related molecular mechanisms were examined by performing luciferase reporter, western blot, and immunofluorescence assays. Structural changes in the livers of mice with NAFLD were observed via H&E staining. RESULTS: The levels of TNF-α, IL-6, and IL-1ß in NAFLD patients were greatly increased, and miR-125b expression was significantly up-regulated. The phosphorylation of IκBα and p65, and secretion of inflammatory factors were all markedly decreased by miR-125b silencing, but greatly increased by miR-125b overexpression. We also demonstrated that downregulation of TNFAIP3 in NAFLD was negatively correlated with miR-125b. Interestingly, the influence of miR-125b inhibitors on nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB)-mediated inflammatory responses were greatly aggravated by co-treatment with TNFAIP siRNA; however, the opposite results were obtained after treatment with miR-125b mimics and TNFAIP plasmids. Furthermore, the HF-induced liver damage and inflammatory responses were greatly ameliorated by miR-125b inhibitors but further aggravated by co-treatment with TNFAIP3 siRNA. CONCLUSION: MiR-125b promoted the NF-κB-mediated inflammatory response in NAFLD by directly targeting TNFAIP3, and that mechanism might be target for treating NAFLD.


Assuntos
MicroRNAs/genética , Hepatopatia Gordurosa não Alcoólica/genética , Proteína 3 Induzida por Fator de Necrose Tumoral alfa/metabolismo , Animais , Feminino , Células Hep G2 , Humanos , Inflamação/patologia , Interleucina-1beta/metabolismo , Interleucina-6/metabolismo , Fígado/metabolismo , Fígado/patologia , Cirrose Hepática/patologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , MicroRNAs/metabolismo , Pessoa de Meia-Idade , Modelos Animais , Inibidor de NF-kappaB alfa/metabolismo , NF-kappa B/metabolismo , Hepatopatia Gordurosa não Alcoólica/metabolismo , Transdução de Sinais/fisiologia , Proteína 3 Induzida por Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/metabolismo
19.
Front Psychiatry ; 12: 799917, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35126211

RESUMO

BACKGROUND: Anxiety disorders have the highest prevalence of all psychiatric disorders in China. Medication and psychotherapy are two main treatment approaches for this group of disorders, and when used in combinations are significantly more beneficial than medication alone. The resources are insufficient. The availability of psychotherapy is low due to the limited resources. Artificial intelligence (AI)-assisted psychotherapy offers an opportunity to develop an efficient and standardized psychotherapy model and improve the availability of psychotherapy, which is key to improve the clinical efficacy of anxiety disorder treatments. OBJECTIVES: The present protocol aims to determine whether medication plus AI-assisted psychotherapy has greater efficacy than medication alone in the treatment of anxiety disorders. METHODS: We will recruit patients in eight hospitals in China. Seven hundred and eight patients with anxiety disorders will be randomly allocated on a 1:1 basis to either medication plus AI-assisted psychotherapy group, or medication alone group. We have built an AI psychotherapy robot named XIAO AN. In this study we will deliver psychotherapy to patients in the medication plus AI-assisted psychotherapy group. Patients will be assessed at baseline and at the end of week 2, 4, 8, and 12. Follow-up assessments will be conducted at 3 and 6 months posttreatment. The primary outcome is change of Hamilton Anxiety Rating Scale (HAMA) score from baseline the end of 12-week treatment. A secondary efficacy outcome will be improvement in treatment at an early stage (score reduction in HAMA ≥25% after 2 weeks of treatment). Other measurements include Hamilton Depression Scale, Clinical Global Impression, Treatment Emergent Symptom Scale, Social Disability Screening Schedule, Insomnia Severity Index and so on. Scales will be assessed by independent raters who are blind to treatment allocation and analyses will be conducted by a statistician who is also blind to treatment allocation. DISCUSSION: This will be the first multicentered randomized controlled single-blind trial in China to assess the efficacy of medication plus AI-assisted psychotherapy compared with medication alone for anxiety disorders. The study has the potential to address the limitations of the limited availability of psychotherapy, and to augment the efficacy of the treatment of anxiety disorders in China.

20.
Ann Transplant ; 25: e926857, 2020 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-33258806

RESUMO

BACKGROUND This study aimed to assess the psychosocial status (mood, sleep quality, and activities of daily living) of candidates on an orthotopic liver transplantation (OLT) waiting list and to identify the association between psychosocial factors and MELD score in end-stage liver disease (ESLD). MATERIAL AND METHODS Fifty-three OLT waiting list candidates completed 4 scales (Hamilton Rating Scale for Depression [HAMD-17], Hamilton Anxiety Rating Scale [HAM-A], Pittsburgh Sleep Quality Index [PSQI], Activities of Daily Living Scale [ADL]) to assess their affective status, sleep quality, and daily living ability. Candidates were divided into 2 groups, the high MELD score group (MELD score ≥15) and the low MELD score group (MELD score.


Assuntos
Atividades Cotidianas , Afeto , Transplante de Fígado , Sono , Adulto , Doença Hepática Terminal , Feminino , Humanos , Fígado , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença , Listas de Espera
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