Consulta: subjectFacets:"Cell apoptosis"
Registros recuperados: 8
Data/hora: 13/06/2024 02:37:42

Does the Ingestion of Isoxaflutole Herbicide Affect the Midgut and Salivary Glands of Pentatomidae Predators?
Provedor de dados: 87
Autores: GONÇALVES,T.S.; SOARES,M.A.; SANTOS,C.A.; SANTOS,D.A.; SANTOS,J.B.; BARROSO,G.A.
Podisus nigrispinus is a generalist predator naturally occurring in agricultural and forestry systems that effectively contributes to the population balance of phytophagous insects, especially defoliating caterpillars. Histological changes were evaluated in the salivary glands and midgut of P. nigrispinus caused by ingestion of systemic herbicide isoxaflutole. These predator females were fed with leaves of eucalyptus plants, Tenebrio molitor pupae or water, contaminated or not by herbicide. Salivary glands and midguts were dissected, processed and analyzed under a light microscope. Activity level and cell morphology of the salivary glands and midgut showed differences among insects fed on plants, contaminated water or pupae. The epithelia of the salivary...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Cell apoptosis; Digestive system; Morphological change; Podisus nigrispinus.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000100125

Effects of spermicidal extracts of Ananas comosus (pineapple) and Sapindus saponaria (jaboncillo) on cell viability, cytotoxicity and apoptosis
Provedor de dados: 98
Autores: Ospina Medina,Luisa; Álvarez Gómez,Ángela; Cortés Mancera,Fabian; Cadavid Jaramillo,Ángela; Cardona Maya,Walter.
Introduction: there are natural products from different fruits and plants that are effective as spermicides, but it is important that they should have little or no cytotoxic effect on epithelial cells. Currently available spermicides with nonoxynol-9 cause vaginal irritation and damage to the vaginal mucosa, the uterine epithelium, and the microbial flora of the vagina. Objective: to elucidate the effect on cell viability, cytotoxicity and apoptosis of spermicidal extracts of Ananas comosus (L.) Merr. and Sapindus saponaria L. over HeLa cell line. Methods: both extracts were evaluated on HeLa cell line using the novel ApoTox-Glo&amp;#8482; Triplex Assay to determine whether cell viability, cytotoxicity and apoptosis were affected. Results: it was...
Tipo: Journal article
Palavras-chave: Natural compounds; Spermicides; Cell cytotoxicity; Cell viability; Cell apoptosis; Ananas comosus; Sapindus saponaria.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962013000400005

Etanercept protects rat cardiomyocytes against hypertrophy by regulating inflammatory cytokines secretion and cell apoptosis
Provedor de dados: 56
Autores: Li,Q.; Yu,Q.; Na,R.; Liu,B.
We aimed to investigate the effect of etanercept, a tumor necrosis factor-α (TNF-α) inhibitor, on rat cardiomyocyte hypertrophy and its underlying mechanism. Primary neonatal rat cardiomyocytes were isolated from Sprague-Dawley rats. The model of rat cardiomyocyte hypertrophy was induced by endothelin, and then treated with different concentrations of etanercept (1, 10, and 50 μM). After treatment, cell counts, viability and cell apoptosis were evaluated. The mRNA levels of myocardial hypertrophy marker genes, including atrial natriuretic factor (ANF), matrix metalloproteinase (MMP)-9 and MMP-13, were detected by qRT-PCR, and the expressions of apoptosis-related proteins (Bcl-2 and Bax) were measured by western blotting. The protein levels of transforming...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tumor necrosis factor-α inhibitor; Endothelin; Myocardial hypertrophy; Cell apoptosis; Inflammatory response.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000600604

LncRNA SNHG12 promotes cell growth and inhibits cell apoptosis in colorectal cancer cells
Provedor de dados: 56
Autores: Wang,J.Z.; Xu,C.L.; Wu,H.; Shen,S.J.
Several long non-coding RNA (lncRNA) might be correlated with the prognosis of colorectal cancer (CRC) and serve as a diagnostic and prognostic biomarker. However, the exact expression pattern of small nucleolar RNA host gene 12 (SNHG12) in colorectal cancer and its clinical significance remains unclear. The level of SNHG12 was detected by qRT-PCR in CRC tissues and CRC cells. MTT assay and colony formation assay were performed to examine the cell proliferation of CRC cells transfected with pcDNA-SNHG12 or si-SNHG12. Flow cytometry technology was used to detect cell cycle and cell apoptosis of CRC cells transfected with pcDNA-SNHG12 or si-SNHG12. The protein level of cell cycle progression-related molecules, including cyclin-dependent kinases (CDK4, CDK6),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: SNHG12; Cell growth; Biomarker; Cell apoptosis; Colorectal cancer.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000300604

Propofol inhibits lung cancer cell viability and induces cell apoptosis by upregulating microRNA-486 expression
Provedor de dados: 56
Autores: Yang,N.; Liang,Y.; Yang,P.; Yang,T.; Jiang,L.
Propofol is a frequently used intravenous anesthetic agent. Recent studies show that propofol exerts a number of non-anesthetic effects. The present study aimed to investigate the effects of propofol on lung cancer cell lines H1299 and H1792 and functional role of microRNA (miR)-486 in these effects. H1299 and/or H1792 cells were treated with or without propofol and transfected or not with miR-486 inhibitor, and then cell viability and apoptosis were analyzed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and flow cytometry. The expression of miR-486 was determined by quantitative real-time polymerase chain reaction (qRT-PCR) with or without propofol treatment. Western blot was performed to analyze the protein expression of Forkhead...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Propofol; Lung cancer; Cell viability; Cell apoptosis; MicroRNA-486.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000100601

CIRBP protects H9C2 cells against myocardial ischemia through inhibition of NF-κB pathway
Provedor de dados: 56
Autores: Long,T.Y.; Jing,R.; Kuang,F.; Huang,L.; Qian,Z.X.; Yang,T.L.
Myocardial ischemia is a major cause of death and remains a disease with extremely deficient clinical therapies and a major problem worldwide. Cold inducible RNA-binding protein (CIRBP) is reported to be involved in multiple pathological processes, including myocardial ischemia. However, the molecular mechanisms of myocardial ischemia remain elusive. Here, we first overexpressed CIRBP by transfection of pc-CIRBP (pcDNA3.1 containing coding sequenced for CIRBP) and silenced CIRBP by transfection of small interfering RNA targeting CIRBP (siCIRBP). pcDNA3.1 and the negative control of siCIRBP (siNC) were transfected into H9C2 cells to act as controls. We then constructed a cell model of myocardial ischemia through culturing cells in serum-free medium with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myocardial ischemia; CIRBP; NF-κB; Cell proliferation; Cell apoptosis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000400602

Oridonin induces growth inhibition and apoptosis in human gastric carcinoma cells by enhancement of p53 expression and function
Provedor de dados: 56
Autores: Bi,Enxu; Liu,Dengqiang; Li,Youxi; Mao,Xuying; Wang,Aihua; Wang,Jingtao.
The tumor suppressive role of oridonin, an active compound extracted from Rabdosia rubescens, has been proven in several gastric cancer (GC) cell lines. The present study aimed to evaluate the effect of oridonin on another GC cell line, SNU-216, and explore the potential mechanisms. The viable cell numbers, cell migration, survival fraction, and cell viability were, respectively, evaluated by trypan blue exclusion assay, wound healing assay, clonogenic assay, and CCK-8 assay. Cell apoptosis was determined by flow cytometry assay and western blot. The expression of p53 was inhibited by transient transfection, and the efficiency was verified by western blot. qRT-PCR was performed to measure the mRNA expression of p53. Western blot was used to evaluate the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oridonin; P53; Gastric cancer; Cell apoptosis; Mdm2.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018001200608

Enhanced anti-tumor efficacy of 5-aminolevulinic acid-gold nanoparticles-mediated photodynamic therapy in cutaneous squamous cell carcinoma cells
Provedor de dados: 56
Autores: Chi,Yu-fei; Qin,Jing-jing; Li,Zhi; Ge,Qin; Zeng,Wei-hui.
The objective of this study was to investigate whether the conjugation of gold nanoparticles (GNPs) to 5-aminolevulinic acid (5-ALA) could enhance the anti-tumor efficiency of photodynamic therapy (PDT) in epidermoid carcinoma cells. The mRNA and protein expression levels were determined by quantitative real-time PCR and western blot, respectively. Cell viability, apoptosis, invasion, and migration were determined by MTT assay, flow cytometry, transwell invasion assay, and migration assay, respectively. Singlet oxygen generation was detected by the singlet oxygen sensor green reagent assay. Our results showed that PDT with 5-ALA and GNPs-conjugated 5-ALA (5-ALA-GNPs) significantly suppressed cell viability, increased cell apoptosis and singlet oxygen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Photodynamic therapy; 5-ALA-GNPs; Cell viability; Cell apoptosis; Cell invasion and migration; Cutaneous squamous cell carcinoma.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500608