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1.
Med Sci Monit ; 30: e944022, 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38768093

RESUMO

BACKGROUND The concept of driving pressure (ΔP) has been established to optimize mechanical ventilation-induced lung injury. However, little is known about the specific effects of setting individualized positive end-expiratory pressure (PEEP) with driving pressure guidance on patient diaphragm function. MATERIAL AND METHODS Ninety patients were randomized into 3 groups, with PEEP set to 0 in group C; 5 cmH2O in group F; and individualized PEEP in group I, based on esophageal manometry. Diaphragm ultrasound was performed in the supine position at 6 consecutive time points from T0-T5: diaphragm excursion, end-expiratory diaphragm thickness (Tdi-ee), and diaphragm thickening fraction (DTF) were measured. Primary indicators included diaphragm excursion, Tdi-ee, and DTF at T0-T5, and the correlation between postoperative DTF and ΔP. Secondary indicators included respiratory mechanics, hemodynamic changes at intraoperative d0-d4 time points, and postoperative clinical pulmonary infection scores. RESULTS (1) Diaphragm function parameters reached the lowest point at T1 in all groups (P<0.001). (2) Compared with group C, diaphragm excursion decreased, Tdi-ee increased, and DTF was lower in groups I and F at T1-T5, with significant differences (P<0.05), but the differences between groups I and F were not significant (P>0.05). (3) DTF was significantly and positively correlated with mean intraoperative ΔP in each group at T3, and the correlation was stronger at higher levels of ΔP. CONCLUSIONS Individualized PEEP, achieved by esophageal manometry, minimizes diaphragmatic injury caused by mechanical ventilation based on lung protection, but its protection of the diaphragm during laparoscopic surgery is not superior to that of conventional ventilation strategies.


Assuntos
Neoplasias Colorretais , Diafragma , Laparoscopia , Respiração com Pressão Positiva , Humanos , Respiração com Pressão Positiva/métodos , Diafragma/fisiopatologia , Masculino , Feminino , Pessoa de Meia-Idade , Laparoscopia/métodos , Idoso , Neoplasias Colorretais/cirurgia , Mecânica Respiratória/fisiologia , Adulto , Pressão , Ultrassonografia/métodos
2.
BMC Womens Health ; 24(1): 81, 2024 01 31.
Artigo em Inglês | MEDLINE | ID: mdl-38297248

RESUMO

OBJECTIVE: To analyze recurrent factors in patients with clinical early-stage cervical cancer (ESCC) following hysterectomy and adjuvant radiotherapy. METHODS: We collected data from patients with ESCC, staged according to the 2009 Federation International of Gynecology and Obstetrics (FIGO) staging criteria, who underwent hysterectomy followed by adjuvant radiotherapy between 2012 and 2019. These patients were subsequently restaged using the 2018 FIGO criteria. Univariable and multivariable analyses, along with nomogram analyses, were conducted to explore factors associated with recurrence-free survival (RFS). RESULTS: A total of 310 patients met the inclusion criteria, with a median follow-up time of 46 months. Among them, 126 patients with ESCC were restaged to stage III C1 or III C2 after surgery due to lymph node metastasis (LNM) based on the 2018 FIGO staging criteria. Of these, 60 (19.3%) experienced relapse. The 1-, 3-, and 5-year RFS rates were 93.9%, 82.7%, and 79.3%, respectively. Multivariate analysis revealed that the number of positive lymph nodes (LNs), tumor diameter (TD) > 4 cm, and parametrial invasion (PI) were associated with recurrence. The nomogram indicated their predictive value for 3-year and 5-year RFS. Notably, the 5-year recurrence rate (RR) increased by 30.2% in patients with LNM, particularly those with ≥ 3 positive LNs (45.5%). Patients with stage III C2 exhibited a significantly higher RR than those with IIIC1 (56.5% vs. 24.3%, p < 0.001). The 5-year RFS for patients with TD > 4 cm was 65.8%, significantly lower than for those with TD ≤ 4 cm (88.2%). Subgroup analysis revealed higher 5-year RRs in patients with stage III C2 than that in patients with III-C1 (56.5% vs. 24.3%, p < 0.001), demonstrating a significant difference in the RFS survival curve. CONCLUSION: RR in patients with clinical ESCC after hysterectomy followed by adjuvant radiotherapy is correlated with the number of positive LNs, TD > 4 cm, and PI. Emphasis should be placed on the common high-risk factor of LNM association with recurrence after radical hysterectomy in ESCC.


Assuntos
Neoplasias do Colo do Útero , Feminino , Humanos , Radioterapia Adjuvante , Resultado do Tratamento , Intervalo Livre de Doença , Neoplasias do Colo do Útero/patologia , Estadiamento de Neoplasias , Estudos Retrospectivos , Recidiva Local de Neoplasia/patologia , Histerectomia , Excisão de Linfonodo
3.
J Stroke Cerebrovasc Dis ; 33(7): 107712, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38599473

RESUMO

BACKGROUND: Previous studies have indicated the potential occurrence of alexithymia among stroke patients, yet the prevalence of alexithymia in this population remains disparate across different investigations without a synthesized overview. AIM: To systematically evaluate the prevalence and characteristics of alexithymia in stroke patients. METHODS: A systematic review and meta-analysis was conducted following the PRISMA guidelines. PubMed, Embase, Web of Science, The Cochrane Library, CINAHL, China Knowledge Resource Integrated Database (CNKI), Wanfang Database, Chinese Biomedical Database, and Weipu Database (VIP) were searched from inception to December 31,2022, two independent researchers extracted data and evaluated article quality. RESULTS: Seventeen studies were included, reporting on the prevalence of alexithymia or Toronto Alexithymia Scale-20 (TAS-20) scores among stroke patients. The pooled prevalence was found to be 35.0% (95%CI= 23.0-47.0%; I2 =97.5%), and the total scores (TS) of TAS-20 was 59.90 (95% CI=56.34-63.47; I2 =100.0%). Subgroup analysis revealed significant variation in TAS-20 scores across different geographical regions. Specifically, the total TAS-20 score in Chinese stroke patients (62.95, 95%CI=58.75-67.14; I2=100%) was higher compared to non-Chinese stroke patients (52.58, 95%CI=49.12-56.04; I2 = 99.0%). CONCLUSIONS: The prevalence of alexithymia is high among stroke patients, with TAS-20 scores surpassing those observed in patients with certain other medical conditions. This underscores the importance of addressing alexithymia in stroke patients promptly through assessment and intervention to mitigate negative emotional consequences and enhance overall quality of life. Future research could explore the influence of demographic factors such as age and sex on alexithymia in stroke patients, enabling a more comprehensive understanding of alexithymia.


Assuntos
Sintomas Afetivos , Acidente Vascular Cerebral , Humanos , Sintomas Afetivos/epidemiologia , Sintomas Afetivos/diagnóstico , Sintomas Afetivos/psicologia , Prevalência , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/psicologia , Acidente Vascular Cerebral/diagnóstico , Feminino , Masculino , Fatores de Risco , Pessoa de Meia-Idade , Idoso , Adulto , Idoso de 80 Anos ou mais
4.
Int Heart J ; 63(5): 837-842, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36184545

RESUMO

To compare the effects of dexmedetomidine (DEX) pretreatment, posttreatment, and whole-course pumping on myocardial protection during cardiac valve replacement.One hundred and twenty patients undergoing cardiac valve replacement were randomly divided into the follow groups: DEX pretreatment (D1 group), DEX posttreatment (D2 group), DEX whole-course pumping (D3 group), and Control (C group). The concentrations of cardiac troponin I (cTnI), malondialdehyde (MDA), tumor necrosis factor alpha (TNF-α), rate of spontaneous heart rebound after aortic opening, time to heart rebound, incidence of arrhythmia, and use of sufentanil and vasoactive drugs were recorded.Compared with group C, the concentrations of cTnI, MDA, and TNF-α in the D1, D2, and D3 groups were lower, especially in the latter. The time to heart rebound was prolonged in all three groups (P < 0.05). The rate of automatic rebound was increased (P < 0.05) while the incidence of arrhythmia was decreased (P < 0.05) in all groups compared with group C. Group D3 had the highest rate of automatic rebound and the lowest incidence of arrhythmia. Compared with groups C and D2, the use of sufentanil and dopamine was lower in groups D1 and D3 (P < 0.05), especially in the latter.During cardiac valve replacement, DEX pretreatment, posttreatment, and whole-course pumping could have myocardial protective effects. The latter showed better effects.


Assuntos
Dexmedetomidina , Dexmedetomidina/farmacologia , Dexmedetomidina/uso terapêutico , Dopamina , Valvas Cardíacas , Humanos , Malondialdeído , Sufentanil , Troponina I , Fator de Necrose Tumoral alfa
5.
BMC Public Health ; 20(1): 1489, 2020 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-33004024

RESUMO

BACKGROUND: The increasing aging population has been posing a significant challenge to disease burden in developing countries. In particular, the contribution of population aging to and long term changes of disease burden of malignant neoplasm of female genital organs (MNFGO) have not been quantitatively demonstrated. METHODS: Data were collected from the Shanghai Vital Statistics System of Pudong New Area (PNA). Crude mortality rate (CMR), age-standardized mortality rate by Segi's world standard population (ASMRW), and years of life lost (YLL) of MNFGO as the underlying cause of death in age and pathology types from 1995 to 2018 were calculated. The joinpoint regression was used to estimate the trends of those rates by identifying the annual percent changes (APCs), and the decomposition method was used to calculate the increased rates and the contribution resulting from demographic and non-demographic factors. RESULTS: From 1995 to 2018, a total of 2869 MNFGO-specific deaths were reported in PNA, accounting for 0.64% of the total deaths. The CMR and ASMRW of MNFGO were 9.23/105 person-years and 4.80/105 person-years, respectively. Ovary cancer was the most common cause of MNFGO death, accounting for 43.9% (1260/2869) of all MNFGO death. Other common causes of MNFGO death included cervix uteri cancer, uterus unspecified cancer, and corpus uteri cancer. With the increase of age, the mortality rate of MNFGO in residents had shown an upward trend ([APC (95%CI) = 3.46 (2.74, 4.18), P < 0.001)] for each five-year age group from 0 to 4 to 85+ years. From 1995 to 2018, YLL of MNFGO in Shanghai PNA was 42,152.82 years, and the rate of YLL was 135.56 /105. The top three MNFGO types in YLLs were ovary cancer, cervix uteri cancer and uterus unspecified cancer. Demographic factors contributed significantly to the upward trends of CMR, ASMRW, and YLL rates of MNFGO. CONCLUSION: With aggravated population aging in Shanghai, MNFGO is and will continue to be a serious threat to women's health. More precise and effective prevention strategies are needed to target high risk population, to achieve efficient health resource allocation and to improve women's health in particular.


Assuntos
Neoplasias do Colo do Útero , Estatísticas Vitais , Idoso , Pré-Escolar , China/epidemiologia , Efeitos Psicossociais da Doença , Feminino , Humanos , Mortalidade Prematura , Neoplasias do Colo do Útero/epidemiologia
6.
Rev Esp Enferm Dig ; 111(3): 214-222, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30507245

RESUMO

BACKGROUND AND AIMS: pathological angiogenesis plays an important role in the progression of chronic liver diseases. Asparaginyl endopeptidase (AEP) participates in tumor angiogenesis and was recently shown to be associated with liver fibrosis. This study aimed to explore the effect of AEP on liver sinusoidal endothelial cell (LSECs) angiogenesis and determine the underlying mechanism. METHODS: cultured LSECs were infected with lentiviruses in order to suppress AEP expression (AEP-KD1, AEP-KD2). The effect of AEP on LSECs proliferation, apoptosis and migration were subsequently determined by a CCK8 assay, flow cytometry and wound-healing and Transwell assays, respectively, in AEP knocked-down and control LSECs. The expression of the endothelial cell surface markers CD31, CD34 and von Willebrand factor (vWF) were detected by immunofluorescence assay and western blot. The angiogenic factors, vascular endothelial growth factor receptor 2 (VEGFR2) and interleukin 8 (IL 8) were detected by real-time PCR and western blot. The effect of AEP on vessel tube formation by LSECs was examined by Matrigel™ tube-formation assay. Phosphoinositide 3-kinase (PI3K)/Akt expression and phosphorylation were detected by western blot. RESULTS: AEP was effectively knocked down by lentivirus infection in LSECs. Down-regulation of AEP expression significantly decreased proliferation and migration and increased apoptosis of LSECs. Moreover, expression levels of the endothelial cell surface markers CD31, CD34 and vWF, as well as angiogenic factors VEGFR2 and IL 8, were also reduced after AEP was knocked-down. The vessel tube formation abilities of AEP-KD1 and AEP-KD2 LSECs were significantly inhibited compared with LSECs without AEP knocked-down. Down-regulation of AEP also inhibited the phosphorylation of PI3K and Akt. CONCLUSION: AEP promotes LSECs angiogenesis in vitro, possibly via the PI3K/Akt pathway. AEP may therefore be a potential therapeutic target for preventing the progression of liver fibrosis.


Assuntos
Cisteína Endopeptidases/fisiologia , Hepatócitos/fisiologia , Neovascularização Patológica/etiologia , Fosfatidilinositol 3-Quinase/metabolismo , Antígenos CD34/metabolismo , Apoptose , Movimento Celular , Proliferação de Células , Células Cultivadas , Cisteína Endopeptidases/genética , Cisteína Endopeptidases/farmacologia , Progressão da Doença , Citometria de Fluxo , Técnicas de Silenciamento de Genes , Hepatócitos/metabolismo , Hepatócitos/virologia , Humanos , Interleucina-8/metabolismo , Lentivirus , Neovascularização Patológica/metabolismo , Molécula-1 de Adesão Celular Endotelial a Plaquetas/metabolismo , Receptor 2 de Fatores de Crescimento do Endotélio Vascular/metabolismo , Cicatrização , Fator de von Willebrand/metabolismo
7.
Biochem Biophys Res Commun ; 464(4): 1241-1247, 2015 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-26212440

RESUMO

Kruppel-like factor 2 (KLF2) is a crucial anti-angiogenic factor. However, its precise role in hepatic angiogenesis induced by liver sinusoidal endothelial cells (LSECs) remain unclear. This study was aimed to evaluate the effect of KLF2 on angiogenesis of LSECs and to explore the corresponding mechanism. Cultured human LSECs were infected with different lentiviruses to overexpress or suppress KLF2 expression. The CCK-8 assay, transwell migration assay and tube formation test, were used to investigate the roles of KLF2 in the proliferation, migration and vessel tube formation of LSECs, respectively. The expression and phosphorylation of ERK1/2 were detected by western blot. We discovered that the up-regulation of KLF2 expression dramatically inhibited proliferation, migration and tube formation in treated LSECs. Correspondingly, down-regulation of KLF2 expression significantly promoted proliferation, migration and tube formation in treated LSECs. Additionally, KLF2 inhibited the phosphorylation of ERK1/2 pathway, followed by the function of KLF2 in the angiogenesis of LSECs disrupted. In conclusion, KLF2 suppressed the angiogenesis of LSECs through inhibition of cell proliferation, migration, and vessel tube formation. These functions of KLF2 may be mediated through the ERK1/2 signaling pathway.


Assuntos
Células Endoteliais/fisiologia , Fatores de Transcrição Kruppel-Like/metabolismo , Fígado/citologia , Fígado/fisiologia , Sistema de Sinalização das MAP Quinases/fisiologia , Neovascularização Fisiológica/fisiologia , Células Cultivadas , Humanos
8.
Rev Esp Enferm Dig ; 107(2): 63-71, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25659387

RESUMO

BACKGROUND AND AIMS: Statins are reported to have a beneficial effect on portal hypertension (PTH); however, the exact mechanism remains unknown. Hepatic stellate cells (HSCs) can be activated by transforming growth factor beta (TGFâ) and play an important role in angiogenesis leading to PTH. Statins potently stimulate the transcription factor, Kruppel-like factor 2 (KLF2), which can negatively regulate angiogenesis. Our present study aimed to investigate the anti-angiogenic potential of statins in HSCs through the KLF2 pathway. METHOD: TGFâ-induced human HSCs were exposed to simvastatin. Cell viability and proliferation were determined by MTT and BrdU-proliferation assays, respectively. Cell migration was investigated using a transwell and wound-healing assays. Gene quantification was measured by real-time polymerase chain reaction. Protein expression was detected by western blot analysis and immunohistochemistry. Inflammatory factors were measured using enzyme-linked immunosorbent assays. RESULT: Simvastatin was found to reduced cell migration and proliferation and inhibit expression of alpha smooth muscle actin in TGFâ-induced HSCs. Furthermore, simvastatin promoted already increased mRNA and protein levels of KLF2 in TGFâ-induced HSCs. In accordance with KLF2 overexpression, simvastatin increased production of endothelial nitric oxide synthesis (eNOS) and downregulated expression of some proangiogenic proteins, such as vascular endothelial growth factor, hypoxia inducible factor-1a and nuclear factor-kappa B in TGFâ-induced HSCs. At the same time, secretion of interferon-gamma increased in TGFâ induced HSCs, which was decreased by simultaneous addition of simvastatin. CONCLUSION: Simvastatin suppressed the proangiogenic environment of HSCs activated by TGFâ, and KLF2 pathway is involved in the course.


Assuntos
Células Estreladas do Fígado/efeitos dos fármacos , Inibidores de Hidroximetilglutaril-CoA Redutases/farmacologia , Fatores de Transcrição Kruppel-Like/metabolismo , Neovascularização Fisiológica/efeitos dos fármacos , Sinvastatina/farmacologia , Biomarcadores/metabolismo , Linhagem Celular , Movimento Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Células Estreladas do Fígado/metabolismo , Humanos , Neovascularização Fisiológica/fisiologia , Reação em Cadeia da Polimerase em Tempo Real
9.
Dig Dis Sci ; 59(2): 328-35, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24185685

RESUMO

BACKGROUND: Human epidermal growth factor receptor 2 (HER2) is an important proto-oncogene of prognostic use in gastric cancer (GC). Fluorescence in-situ hybridization (FISH) and immunohistochemistry (IHC) are the main clinical methods of detection of HER2, but consistency between the methods is poor and the cause of the discrepancy is unclear. AIM: To investigate the involvement of HER2 mRNA status in the disparity between gene amplification and protein overexpression. METHODS: We investigated HER2 gene, mRNA, and protein profiles in gastric precancer and cancer tissues by use of the molecular approaches FISH, real-time polymerase chain reaction, and IHC. The relationships between HER2 and matrix metalloproteinase 9 (MMP9) and Smad7 expression were analyzed and the involvement of HER2 in the interaction between tumor cells and lymphocytes was investigated by coculturing GC cell lines with peripheral blood mononuclear cells (PBMCs). RESULTS: HER2 protein expression was significantly increased in cancer compared with precancer (P = 0.003), and the corresponding mRNA levels were significantly lower in precancer and cancer tissues than in normal tissues (κ = 0.290, P = 0.025). HER2 mRNA levels were significantly higher in tumor than in peritumor tissue (P = 0.028), and were positively correlated with MMP9 and Smad7 mRNA levels in tumor tissues. HER2 mRNA expression in GC cell lines was increased by coculture with PBMCs. CONCLUSIONS: Different HER2 mRNA profiles, possibly in relation to contact between tumor cells and lymphocytes, might help to explain the discrepancy between gene amplification and protein overexpression results.


Assuntos
Biomarcadores Tumorais/genética , Amplificação de Genes , Regulação Neoplásica da Expressão Gênica , RNA Mensageiro/metabolismo , Receptor ErbB-2/genética , Neoplasias Gástricas/genética , Adulto , Idoso , Biomarcadores Tumorais/metabolismo , Estudos de Casos e Controles , Linhagem Celular Tumoral , Técnicas de Cocultura , Feminino , Humanos , Imuno-Histoquímica , Hibridização in Situ Fluorescente , Leucócitos Mononucleares/metabolismo , Masculino , Metaloproteinase 9 da Matriz/genética , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Proto-Oncogene Mas , Reação em Cadeia da Polimerase em Tempo Real , Receptor ErbB-2/metabolismo , Proteína Smad7/genética , Neoplasias Gástricas/enzimologia , Regulação para Cima
10.
Zhonghua Yi Xue Za Zhi ; 94(48): 3842-4, 2014 Dec 30.
Artigo em Zh | MEDLINE | ID: mdl-25623319

RESUMO

OBJECTIVE: To explore the levels of circulating hypoxia inducible factor-1α (HIF-1α) and hemeoxygenase-1 (HO-1) in liver cirrhosis and to explore their diagnostic values as noninvasive methods. METHODS: The levels of circulating HIF-1α and HO-1 were quantitatively detected in 34 patients with liver cirrhosis and 10 healthy controls by ELISA from May 2012 to May 2013. The diagnostic values were analyzed by ROC curve and their correlation with clinicopathological characters were also compared. RESULTS: The serum levels of HIF-1α and HO-1 were significantly higher than those in healthy controls ((10.99 ± 0.24) vs (5.79 ± 0.84) µg/L, (63.04 ± 1.87) vs (16.35 ± 2.07) µg/L, both P < 0.01). No significant difference existed among Child-Pugh classification. The expressions of HIF-1α and HO-1 had a linear correlation between each other, and closely related with rebleeding and portal thrombosis during a one-year follow-up (all P < 0.05). The area under ROC curve of HIF-1α and HO-1 was 0.894 and 0.994 respectively. With 9.45 µg/L as a critical point for HIF-1α, the diagnosis of liver cirrhosis might be predicted with a positive predictive value of 91.2%. And HO-1 >31.86 µg/L predicted the diagnosis of liver cirrhosis with a sensitivity of 97.1% and a specificity of 100%. CONCLUSION: The serum levels of HIF-1α and HO-1 may serve as useful molecular markers for a noninvasive diagnosis of liver cirrhosis.


Assuntos
Cirrose Hepática , Heme Oxigenase-1 , Humanos , Subunidade alfa do Fator 1 Induzível por Hipóxia , Curva ROC
11.
Zhonghua Yi Xue Za Zhi ; 94(4): 296-300, 2014 Jan 28.
Artigo em Zh | MEDLINE | ID: mdl-24731499

RESUMO

OBJECTIVE: To explore whether the stimulation of interleukin-6 (IL-6) could induce Barrett's esophagus cells (CP-D) to undergo epithelial-mesenchymal transition (EMT). METHODS: IL-6 was used to treat CP-D cell line at the concentrations of 0, 10, 20, 50 and 100 µg/L. The cell morphological changes were observed after 24 hour. Reverse transcription (RT)-PCR, wound healing assay and transwell assay was used to test the migratory potentials of CP-D cell. Western blot and immunofluorescence methods were performed to detect the expression of E-cadherin and vimentin. RESULTS: After 24-hour exposure of IL-6, CP-D cell lost its polarity and had reduced cell-to-cell adhesion connection. Wound healing assay showed the number of migrating cells was 131 ± 22 in 0 µg/L group, lesser than 10, 20, 50 and 100 µg/L group (328 ± 47, 347 ± 59, 483 ± 62, 492 ± 55, all P < 0.05). Transwell experiments indicated that IL-6 could enhance the invasiveness of CP-D (62 ± 11, 67 ± 15, 97 ± 12, 99 ± 13 vs 13 ± 5, all P < 0.05) . Real-time RT-PCR revealed that increasing concentrations of IL-6 led to a reduction of E-cadherin mRNA expression and an enhancement of vimentin mRNA expression. And significant differences were detected between 20 and 50 µg/L (0.79 ± 0.07 vs 0.47 ± 0.16, P = 0.012; 1.43 ± 0.15 vs 1.78 ± 0.37, P = 0.026). The results of Western blotting were consistent with those of real-time RT-PCR. It indicated that 50 µg/L was the most optimal concentration of IL-6 for inducing EMT in CP-D. CONCLUSIONS: IL-6 stimulation may induce CP-D to undergo EMT. As a result, its invasiveness and migration capacity becomes enhanced so as to lead to malignant transformation.


Assuntos
Esôfago de Barrett/patologia , Transição Epitelial-Mesenquimal/efeitos dos fármacos , Interleucina-6/efeitos adversos , Linhagem Celular , Movimento Celular , Transformação Celular Neoplásica/patologia , Células Epiteliais/citologia , Células Epiteliais/efeitos dos fármacos , Humanos , Interleucina-6/farmacologia
12.
Int J Radiat Oncol Biol Phys ; 119(1): 219-233, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-37914138

RESUMO

PURPOSE: Radiation therapy is a vital adjuvant treatment for liver cancer, although the challenge of radiation-induced liver diseases (RILDs) limits its implementation. Kupffer cells (KCs) are a crucial cell population of the hepatic immune system, and their biologic function can be modulated by multiple epigenetic RNA modifications, including N6-methyladenosine (m6A) methylation. However, the mechanism for m6A methylation in KC-induced inflammatory responses in RILD remains unclear. The present study investigated the function of m6A modification in KCs contributing to RILD. METHODS AND MATERIALS: Methylated RNA-immunoprecipitation sequencing and RNA transcriptome sequencing were used to explore the m6A methylation profile of primary KCs isolated from mice after irradiation with 3 × 8 Gy. Western blotting and quantitative real-time PCR were used to evaluate gene expression. DNA pulldown and chromatin immunoprecipitation assays were performed to verify target gene binding and identify binding sites. RESULTS: Methylated RNA-immunoprecipitation sequencing revealed significantly increased m6A modification levels in human KCs after irradiation, suggesting the potential role of upregulated m6A in RILD. In addition, the study results corroborated that methyltransferase-like 3 (METTL3) acts as a main modulator to promote the methylation and gene expression of TEAD1, leading to STING-NLRP3 signaling activation. Importantly, it was shown that IGF2BP2 functions as an m6A "reader" to recognize methylated TEAD1 mRNA and promote its stability. METTL3/TEAD1 knockdown abolished the activation of STING-NLRP3 signaling, protected against RILD, and suppressed inflammatory cytokines and hepatocyte apoptosis. Moreover, clinical human normal liver tissue samples collected after irradiation showed increased expression of STING and interleukin-1ß in KCs compared with nonirradiated samples. Notably, STING pharmacologic inhibition alleviated irradiation-induced liver injury in mice, indicating its potential therapeutic role in RILD. CONCLUSIONS: The results of our study reveal that TEAD1-STING-NLRP3 signaling activation contributes to RILD via METTL3-dependent m6A modification.


Assuntos
Células de Kupffer , Neoplasias Hepáticas , Humanos , Camundongos , Animais , Células de Kupffer/metabolismo , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Regulação para Cima , Piroptose , Neoplasias Hepáticas/metabolismo , RNA Mensageiro/genética , Metiltransferases/genética , Proteínas de Ligação a RNA/fisiologia
13.
Arch Gerontol Geriatr ; 120: 105335, 2024 05.
Artigo em Inglês | MEDLINE | ID: mdl-38422884

RESUMO

Background and Purpose Intrinsic capacity (IC) has been shown to have the greatest impact on an individual's health status and health trajectory and can independently predict adverse outcomes such as mortality and care dependency in older adults. However, the current understanding of adverse outcomes associated with IC is incomplete. Methods A scoping review of the literature from PubMed, Web of Science (WOS), The Cochrane Library, CINAHL, and Embase databases was conducted from January 2015 to March 2023 to identify articles related to the adverse outcomes associated with IC in older adults. Results 711 studies met screening criteria, and 25 studies met inclusion criteria. These studies reported a total of 17 adverse outcomes related to IC across four domains. (1) Adverse outcomes in the physiological function domains included frailty, pneumonia onset, memory impairment, polypharmacy, incontinence, and poor/fair self-rated health. (2) Clinical outcomes domains included IADL disability, ADL disability, mortality, falls, autonomy decline, and incident dependence. (3) The resource utilization domains included hospitalization, nursing home stays, polypharmacy healthcare costs, and emergency department visits. (4) The other domains mainly included poor quality of life. Conclusion It is evident that IC decline in older adults is associated with a broad spectrum of adverse outcomes spanning cognitive function, activity ability, sensory perception, physical and mental health and living standards. Future studies should further deepen the exploration of IC.


Assuntos
Pessoas com Deficiência , Fragilidade , Humanos , Idoso , Qualidade de Vida , Nível de Saúde , Polimedicação
14.
Arch Gerontol Geriatr ; 126: 105550, 2024 11.
Artigo em Inglês | MEDLINE | ID: mdl-38991290

RESUMO

OBJECTIVES: To examine the predictive value of intrinsic capacity decline on functional disability among the elderly. DESIGN: Meta-analysis. METHODS: PubMed, EMBASE, Web of Science, The Cochrane Library, Wanfang Database, China Knowledge Resource Integrated Database (CNKI), Weipu Database (VIP), and Chinese Biomedical Database (CBM) were searched for relevant studies published from the inception until June 1, 2024. Stata 17.0 software was used to perform the meta-analysis. The methodological quality was evaluated using the Newcastle Ottawa Scale. The overall quality of evidence used GRADE guidelines to assess. A study protocol was registered in PROSPERO (CRD42023475461). RESULTS: The meta-analysis included 8 cohort studies including 9744 elderly people. Functional disability including ADL disability (n = 6) and IADL disability (n = 7). The results showed that intrinsic capacity decline could predict ADL disability (HR = 1.08, 95 %CI 1.04-1.12; I2 = 98.2 %, P < 0.001) and IADL disability (HR = 1.11, 95 %CI 1.05-1.17; I2 = 96.4 %, P < 0.001). The overall risk of bias was low. And the grade of evidence that assessed by GRADE guidelines was rated as moderate. CONCLUSIONS: Intrinsic capacity decline is a predictor of functional disability in the elderly. Therefore, screening intrinsic capacity decline has important clinical implications for early identifying the risk of functional disability, which contributes to providing individualized interventions ahead of potential functional disability for the elderly, thereby preventing functional disability, improving the quality of life and promoting healthy aging.


Assuntos
Atividades Cotidianas , Avaliação Geriátrica , Idoso , Humanos , Avaliação da Deficiência , Pessoas com Deficiência/estatística & dados numéricos , Avaliação Geriátrica/métodos
15.
Biochem Biophys Res Commun ; 430(2): 804-9, 2013 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-23201402

RESUMO

Forkhead Box Protein 3 (FoxP3) was identified as a key transcription factor to the occurring and function of the regulatory T cells (Tregs). However, limited evidence indicated its function in tumor cells. To elucidate the precise roles and underlying molecular mechanism of FoxP3 in gastric cancer (GC), we examined the expression of FoxP3 and the consequences of interfering with FoxP3 gene in human GC cell lines, AGS and MKN45, by multiple cellular and molecular approaches, such as immunofluorescence, gene transfection, CCK-8 assay, clone formation assay, TUNEL assay, Flow cytometry, immunoassay and quantities polymerase chain reaction (PCR). As a result, FoxP3 was expressed both in nucleus and cytoplasm of GC cells. Up-regulation of FoxP3 inhibited cell proliferation and promoted cell apoptosis. Overexpression of FoxP3 increased the protein and mRNA levels of proapoptotic molecules, such as poly ADP-ribose polymerase1 (PARP), caspase-3 and caspase-9, and repressed the expression of antiapoptotic molecules, such as cellular inhibitor of apoptosis-1 (c-IAP1) and the long isoform of B cell leukemia/lymphoma-2 (Bcl-2). Furthermore, silencing of FoxP3 by siRNA in GC cells reduced the expression of proapoptotic genes, such as PARP, caspase-3 and caspase-9. Collectively, our findings identify the novel roles of FoxP3 in inhibiting proliferation and inducing apoptosis in GC cells by regulating apoptotic signaling, which could be a promising therapeutic approach for gastric cancer.


Assuntos
Apoptose/fisiologia , Proliferação de Células , Neoplasias Gástricas/metabolismo , Neoplasias Gástricas/patologia , Apoptose/genética , Caspases/genética , Caspases/metabolismo , Linhagem Celular Tumoral , Fatores de Transcrição Forkhead/genética , Humanos , Proteínas Mitocondriais/metabolismo , RNA Interferente Pequeno/genética , Transdução de Sinais , Regulação para Cima
16.
PLoS One ; 18(8): e0289986, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37561795

RESUMO

This paper takes the financial independent directors' compensation of listed companies from 2014 to 2020 as the research object and uses empirical analysis to study whether the compensation of financial independent directors promotes or inhibits stock price collapse. The research results show that there is a significant positive correlation between the compensation of financial independent directors of listed companies and stock price collapse. In state-owned enterprises, the compensation of financial independent directors has an inhibitory effect on stock price collapse, but it is not significant. In non-state-owned enterprises, the compensation of financial independent directors has a significant promoting effect on stock price collapse. Further research finds that the improvement of internal control quality can weaken the promoting effect of financial independent directors' compensation on stock price collapse to a certain extent, and the weakening effect is particularly evident in non-state-owned enterprises. The attendance frequency of financial independent directors cannot effectively suppress stock price collapse, but instead has a promoting effect.

17.
Health Sci Rep ; 6(11): e1688, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38028678

RESUMO

Background and Aims: The use of lidocaine aerosol for pediatric tonsil and adenoidectomy has been reported less frequently. We hope to improve the perioperative comfort of pediatric patients undergoing these procedures by applying lidocaine aerosol. Methods: A total of 122 pediatric patients receiving tonsil and adenoidectomy were randomly divided into a lidocaine aerosol group (Group L) and a saline group (Group C), with 61 patients in each group; 2.4% alkaline lidocaine aerosol and saline were sprayed in the pharynx before induction. Our primary outcome were the incidence and rate ratio (RR) of postoperative pharyngeal complications (oropharyngeal dryness, dysphagia, hoarseness, and sore throat) and the pharyngeal comfort score, the latter of which was assessed by the occurrence of the above complications (yes = 0 point, none = 1 point). The secondary outcomes included preoperative and intraoperative blood pressure and heart rate, the incidence of choking during the induction period, the intraoperative opioid dosage, and the pain level and depth of sedation at 2, 6, and 24 h postoperatively. Statistical software used in this study included PASS15.0, SPSS 26.0, and GraphPad Prism 9.3.1, and statistical methods used included the t-test, the χ² test, the Mann-Whitney U test, and the repeated measures analysis of variance. Results: The incidence and RR of postoperative pharyngeal complications such as oropharyngeal dryness (RR: 0.667, 95% confidence interval [CI]: 0.458-0.970, p = 0.03), dysphagia (RR: 0.333, 95% CI: 0.114-0.976, p = 0.03), hoarseness (RR: 0.647, 95% CI: 0.433-0.967, p = 0.03), and sore throat (RR: 0.727, 95% CI: 0.547-0.967, p = 0.03) were significantly lower in Group L than in Group C at 2 h postoperatively, and the incidence and RR of postoperative sore throat was significantly lower in Group L than in Group C at 6 h postoperatively (RR: 0.717, 95% CI: 0.547-0.942, p = 0.01). The postoperative pharyngeal comfort scores were significantly higher in Group L than in Group C at all postoperative time points (p < 0.05). The Ramsay sedation score was significantly higher (p < 0.01) and FLACC (face, legs, activity, crying, and consolability) score was significantly lower (p < 0.01) in Group L than in Group C at 2 h postoperatively. In Group C, the blood pressure and heart rate significantly faster at all time points immediately after intubation and afterward, except at the end of surgery (p < 0.05). Conclusions: In pediatric tonsil and adenoidectomy, the application of lidocaine aerosol before induction can reduce the incidence of postoperative pharyngeal complications, improve the child's postoperative pharyngeal comfort, and better realize perioperative "comfort medical treatment."

18.
Comput Intell Neurosci ; 2022: 9193055, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35958787

RESUMO

This study aims to accurately predict the changing trend of stocks in stock trading so that company investors can obtain higher returns. In building a financial forecasting model, historical data and learned parameters are used to predict future stock prices. Firstly, the relevant theories of stock forecasting are discussed, and problems in stock forecasting are raised. Secondly, the inadequacies of deep neural network (DNN) models are discussed. A prediction trend model of enterprise stock is established based on long short-term memory (LSTM). The uniqueness and innovation lie in using the stock returns of Bank of China securities in 2022 as the training data set. LSTM prediction models are used to perform error analysis on company data training. The 20-day change trend of the company's stock returns under different models is predicted and analyzed. The results show that as the number of iterations increases, the loss rate of the LSTM training curve keeps decreasing until 0. The average return price of the LSTM prediction model is 14.01. This figure is closest to the average real return price of 13.89. Through the forecast trend analysis under different models, LSTM predicts that the stock change trend of the enterprise model is closest to the changing trend of the actual earnings price. The prediction accuracy is better than other prediction models. In addition, this study explores the characteristics of high noise and complexity of corporate stock time series, designs a DNN prediction model, and verifies the feasibility of the LSTM model to predict corporate stock changes with high accuracy.


Assuntos
Memória de Longo Prazo , Redes Neurais de Computação , China , Previsões
19.
Front Oncol ; 12: 873918, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35669429

RESUMO

Introduction: The burden of cancer-related mortality of common malignancies has been reported worldwide. However, whether bone cancer (BC), as a highly aggressive and heterogeneous group of rare cancers, followed a similar or distinct epidemiological pattern during such process remains largely unknown. We aimed to analyze the mortality and the temporal trends of BC in relation to gender, age, and premature death in Shanghai, China. Methods: We conducted a population-based analysis of the mortality data of BC in Shanghai Pudong New Area (PNA) from 2005 to 2020. The epidemiological characteristics and long-term trends in crude mortality rates (CMRs), age-standardized mortality rates worldwide (ASMRWs), and rate of years of life lost (YLL) was analyzed using the Joinpoint regression program. The demographic and non-demographic factors affecting the mortality rate were evaluated by the decomposition method. Results: There are 519 BC-specific deaths accounting for 0.15% of all 336,823 deaths and 0.49% of cancer-specific death in PNA. The CMR and ASMRW of BC were 1.15/105 person-year and 0.61/105 person-year, respectively. The YLL due to premature death from BC was 6,539.39 years, with the age group of 60-69 years having the highest YLL of 1,440.79 years. The long-term trend of CMR, ASMRW, and YLL rate significantly decreased by -5.14%, -7.64%, and -7.27%, respectively, per year (all p < 0.05) in the past 16 years. However, the proportion of BC-specific death within the total cancer-specific death dropped to a plateau without further improvement since 2016, and a remarkable gender and age disparity was noticed in the observed reduction in mortality. Specifically, the elderly benefited less but accounted for a larger percentage of BC population in the last decades. Although the overall mortality of BC decreased, there was still a significant upward trend toward an increased mortality rate caused by the aging of the BC patients. Conclusion: Our study provides novel insights on the epidemiological characteristics and longitudinal dynamics of BC in a fast urbanization and transitioning city. As a rare disease affecting all ages, the burden of BC among the elderly emerged to form an understudied and unmet medical need in an aging society.

20.
Nat Commun ; 13(1): 6807, 2022 11 10.
Artigo em Inglês | MEDLINE | ID: mdl-36357415

RESUMO

The synergistic effect of neoadjuvant immunotherapy and chemoradiotherapy in gastric adenocarcinoma is unclear. This phase II trial (NCT03631615) investigated this neoadjuvant combination in locally advanced adenocarcinoma of stomach or gastroesophageal junction. Thirty-six patients received capecitabine 850 mg/m2 twice daily and simultaneous radiotherapy for 5 weeks, sandwiched by a 21-day cycle of oxaliplatin 130 mg/m2 (day 1) plus capecitabine 1000 mg/m2 twice daily (days 1-14), respectively, followed by surgery. Camrelizumab 200 mg (day 1) was given for 5 cycles since initiating chemotherapy. Primary endpoint was pathological complete response (pCR, ypT0) rate. Secondary endpoints included total pCR (tpCR, ypT0N0) rate, major pathological response (MPR, < 10% residual tumor cells) rate, margin-free (R0) resection rate, downstaging, progression-free survival (PFS), overall survival (OS), and safety. The pCR rate was 33.3% (95% CI, 18.6-51.0), meeting pre-specified endpoint. TpCR, MPR, and R0 resection rates were 33.3%, 44.4%, and 91.7%, respectively. Twenty-eight (77.8%) patients reached ypN0. Two-year PFS and OS rates were 66.9% and 76.1%, respectively. The most common grade 3-4 adverse event was decreased lymphocyte count (27 [75.0%]). Neoadjuvant camrelizumab plus concurrent chemoradiotherapy exhibits promising pathological response in patients with locally advanced gastric adenocarcinoma, with an acceptable safety profile.


Assuntos
Adenocarcinoma , Neoplasias Retais , Neoplasias Gástricas , Humanos , Terapia Neoadjuvante/efeitos adversos , Capecitabina/uso terapêutico , Planetas , Neoplasias Retais/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Quimiorradioterapia/efeitos adversos , Adenocarcinoma/tratamento farmacológico , Junção Esofagogástrica/patologia , Neoplasias Gástricas/tratamento farmacológico
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