Search results for: assays
#33098722 2020/10/24 To Up
Vitamin D decreases Porphyromonas gingivalis internalized into macrophages by promoting autophagy.This paper aims to study the effect of the active form of vitamin D (calcitriol) on the internalized P. gingivalis in macrophages and to assess the role of autophagy during this process.
Li Niu, Shuangshuang Chen, Xue Yang, Chunliang Ma, Chunling Pan, Hongyan Wang, Qian Li, Fengxue Geng, Xiaolin Tang
2057 related Products with: Vitamin D decreases Porphyromonas gingivalis internalized into macrophages by promoting autophagy.100 250ul1 mg200 assays200ul2.5 g100ug Lyophilized100ug Lyophilized 25 G1L100ug1 g
#33098714 2020/10/24 To Up
Drug interaction of ningetinib and gefitinib involving CYP1A1 and efflux transporters in non-small cell lung cancer patients.Ningetinib is a tyrosine kinase inhibitor for the treatment of non-small cell lung cancer (NSCLC). The present study aims to investigate the drug interaction of ningetinib and gefitinib and the mechanism of high plasma exposure of N-demethylated ningetinib (M1) in NSCLC patients.
Lu Liu, Qian Wang, Cen Xie, Ning Xi, Zitao Guo, Ming Li, Xiangyu Hou, Ningjie Xie, Mingming Sun, Jing Li, Xiaoyan Chen
2732 related Products with: Drug interaction of ningetinib and gefitinib involving CYP1A1 and efflux transporters in non-small cell lung cancer patients.
#33098559 2020/10/24 To Up
Wild black rats (Rattus rattus Linnaeus, 1758) as zoomonitor of genotoxicity and systemic toxicity induced by hazardous emissions from Abule Egba unsanitary landfill, Lagos, Nigeria.Wild black rats (Rattus rattus) inhabiting Abule Egba landfill (AEL) were used as zoomonitor to assess health risk associated with exposure to hazardous chemicals from landfills. Twenty five R. rattus (16♂ and 9♀) captured within AEL and 15 (9♂ and 6♀) (control) caught from Iyano Ipaja (10 km away from AEL) were examined for bone marrow micronucleated polychromatic erythrocytes (MNPCE) and polychromatic erythrocytes/normochromatic erythrocytes (PCE/NCE) ratio, abnormal sperm morphology, alterations in hematological indices and erythrocyte morphology, and histopathology of the viscera using standard protocols. There was significant (p < 0.05) increase in MNPCE but decrease PCE/NCE ratio in bone marrow cells of exposed rats than the reference site. MNPCE was insignificantly higher in male than females. Cauda epididymal sperms from exposed rats showed significant high frequency of teratozoospermia. Erythrocyte count, hemoglobin concentrations, percentage hematocrits, mean corpuscular hemoglobin concentrations, leucocyte count, and lymphocytes decreased while mean corpuscular volume, neutrophils, and mean corpuscular hemoglobin increased in the exposed rats compared to the control. Also, abnormal erythrocyte morphology: acanthocytes, codocytes (target cells), schizocytes, and tear drops significantly increased in the exposed rats. Marginal sexual dimorphism was observed between males and females in the incidence of hematological indices. Histopathological lesions including interstitial edema, hemorrhage, lymphoid depletion, cellular infiltrations, proliferation of the alveolar pneumocytes, necrosis, tissue degeneration, and reduced germinal epithelium were observed in the testes, liver, lungs, heart, kidney, and spleen from the exposed rats compared to the control. Some physicochemicals and metals analyzed in leachates from the landfill are capable of inducing genome instability and systemic toxicity in the exposed rats. Rattus rattus exposed to hazardous chemicals from AEL harbored somatic and germ cell mutations, and tissue damage compared to the control rats. We suggest that R. rattus are useful sentinel for genotoxicity and system toxicity assessment of landfill-polluted sites.Graphical abstract.
Chibuisi G Alimba, Olusoji O Adewumi, Olufisayo M Binuyo, Peter G C Odeigah
1333 related Products with: Wild black rats (Rattus rattus Linnaeus, 1758) as zoomonitor of genotoxicity and systemic toxicity induced by hazardous emissions from Abule Egba unsanitary landfill, Lagos, Nigeria.96T96T96 assays96T1 ml100ug10 plates100
#33098545 2020/10/24 To Up
Forkhead box K1 facilitates growth of papillary thyroid carcinoma cells by regulating connective tissue growth factor expression.Forkhead box (FOX) proteins have been identified as key transcription factors in diverse biological processes involved in tumor progression. A large number of FOX proteins are implicated in tumorigenesis of papillary thyroid carcinoma (PTC). Here we investigated the role of Forkhead box K1 (FOXK1) in PTC progression. First, we found that FOXK1 was elevated in both PTC tissues (N = 68) and cell lines. Moreover, up-regulated FOXK1 was associated with shorter overall survival of PTC patients. Second, in vitro functional assays showed that FOXK1 promoted progression of PTC. Mechanistically, FOXK1 could bind to the promoter of cysteine-rich angiogenic inducer 61 (CYR61) and regulate connective tissue growth factor (CTGF) expression through CYR61. Notably, over-expression of CTGF weakened suppression of PTC progression induced by FOXK1 knockdown. Finally, in vivo xenotransplant tumor model indicated that knockdown of FOXK1 suppressed PTC growth. In conclusion, our results indicate that FOXK1 exerts oncogenic roles in PTC via CYR61/CTGF axis, which suggests FOXK1 might act as a potential therapeutic target.
Hongwei Xu, Yang Liu, Zheng Liu, Xiaoming Wang, Xiubo Lu
1616 related Products with: Forkhead box K1 facilitates growth of papillary thyroid carcinoma cells by regulating connective tissue growth factor expression.5ug0.1 mg5 x 50 ug50 ug0.1 mg100 µg2ug5x10 ug10ug5 x 50 ug16 Arrays/Slide10ug
#33098446 2020/10/24 To Up
Detection of heliothine sex pheromone components in the Australian budworm moth, Helicoverpa punctigera: electrophysiology, neuroanatomy, and behavior.This study examined electrophysiological responses of the Australian budworm moth Helicoverpa punctigera, to heliothine sex pheromone components, via single sensillum recordings (SSR), and examined male neuroanatomy using confocal microscopy and 3D imaging tools. We found that male H. punctigera have three distinct regions of the macroglomerular complex (MGC) in the antennal lobe. Male antennae have only two functional types of sensilla trichoidea (A and C) and type A sensilla contain an olfactory sensory neuron (OSN) that responds to the major sex pheromone component (Z)-11-hexadecenal (Z11-16:Ald) with axons projecting to the cumulus of the macroglomerular complex (MGC) in the antennal lobe. Type C sensilla contained large-spiking receptor neurons which responded primarily to (Z)-9-tetradecenal (Z9-14:Ald) and to a lesser degree to (Z)-11-hexadecenol (Z11-16:OH). These were co-compartmentalized with small-spiking receptor neurons in type C sensilla which responded strongly to Z9-14:Ald and (Z)-9-hexadecenal (Z9-16:Ald), and to a lesser degree to (Z)-11-hexadecenyl acetate (Z11-16:OAc) and Z11-16:OH. Axons from the two co-localized neurons in Type C sensilla projected to the two small MGC units, the dorsomedial anterior and dorsomedial posterior, respectively. In wind tunnel assays, the addition of Z9-16:Ald to an otherwise attractive blend completely shut down male H. punctigera upwind flight.
Kevin Cloonan, A Rebecca Rizzato, Laura Ferguson, N Kirk Hillier
2565 related Products with: Detection of heliothine sex pheromone components in the Australian budworm moth, Helicoverpa punctigera: electrophysiology, neuroanatomy, and behavior.50 ul50 ul100 ul
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#33098417 2020/10/24 To Up
Correlation of SARS-CoV-2 neutralizing antibodies to an automated chemiluminescent serological immunoassay.Neutralizing antibodies (NAbs) are capable of binding to a virus to render incapable of infection. The ability of commercially available SARS-CoV-2 serological tests to detect NAbs has not been widely reported. We sought to correlate the antibodies detected by an automated chemiluminescent immunoassay with NAbs.
David G Grenache, Chunyan Ye, Steven B Bradfute
1294 related Products with: Correlation of SARS-CoV-2 neutralizing antibodies to an automated chemiluminescent serological immunoassay.200ug200 ug100 μg100 ug100 1 ml1 ml50 ug Product tipe: Antib100 25ml1 mg100
#33098307 2020/10/23 To Up
miR-491-3p is Downregulated in Retinoblastoma and Inhibit Tumor Cells Growth and Metastasis by Targeting SNN.Retinoblastoma (Rb) is the most common pediatric malignant tumor of the eyes. Previous studies demonstrated that miR-491-3p is downregulated in various cancers. However, its function in Rb remains unknown. A total of 15 pairs of primary Rb tissues and adjacent noncancerous tissues were collected. Quantitative real-time PCR (qRT-PCR) was used to investigate the expression profiles of miR-491-3p. qRT-PCR, western blotting and in situ immunocytochemistry were performed to investigate the expression profiles of epithelial-mesenchymal transition-related proteins (E-cadherin, Vimentin and N-cadherin) in Rb tissues and Rb cell lines as well as cell morphology. Cell proliferation was estimated by MTS and colony formation assays. Apoptosis was determined by FACS, cell migration and invasion were analyzed using transwell chambers. MiR-491-3p's target genes were predicted using target gene prediction databases. The interplay between miR-491-3p and SNN was evaluated through dual luciferase reporter gene assay. MiR-491-3p was significantly downregulated in mixed collection of 15 pairs of Rb tissues and Rb cell lines. Overexpression of miR-491-3p enhanced apoptosis, and significantly suppressed proliferation, migration and invasion of Rb cells. In contrast, the present of miR-491-3p inhibitor showed reversed results which apoptosis decreased, while cell proliferation of ARPE-19 cells increased. In addition, miR-491-3p increased the expression of E-cadherin, and dramatically decreased the expression of Vimentin and N-cadherin in Rb tissues and Rb cell lines, noticeable changes in morphology, too, as cells became less cohesive and more adhering. We found out that SNN was the pairing target of miR-491-3p and result showed that miR-491-3p and SNN interacted with each other. We also found out that the effects of miR-491-3p were in Rb cells were almost entirely canceled out at the overexpression of SNN. Our findings collectively suggest that miR-491-3p is an important tumor suppressor in Rb, which inhibits tumor growth and metastasis in Rb. These implicate it may be explored as a new therapeutic target in Rb.
Yang Hu, Ming Zhao, Li Li, Jie Ding, Yu-Min Gui, Tan-Wei Wei
1453 related Products with: miR-491-3p is Downregulated in Retinoblastoma and Inhibit Tumor Cells Growth and Metastasis by Targeting SNN.100ug Lyophilized100ug Lyophilized100ug Lyophilized0.1ml (1mg/ml)100ug Lyophilized100ug Lyophilized100ug Lyophilized0.1ml (1mg/ml)100ug Lyophilized0.1ml (1mg/ml)100ug Lyophilized
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#33098293 2020/10/24 To Up
The Galleria mellonella infection model as a system to investigate the virulence of Candida auris strains.Candida auris is a multiresistant pathogenic yeast commonly isolated from bloodstream infections in immunocompromised patients. In this work, we infected G. mellonella larvae with 105 CFU of a reference strains and two clinical isolates of C. albicans and C. auris and we compared the outcomes of infection between both species. Larvae were evaluated every 24 h for a total of 120 h following the G. mellonella Health Index Scoring System, and survival, activity, melanization and cocoon formation were monitored. Our results showed that clinical isolates were significantly more pathogenic than reference strains independently of the tested species, producing lower survival and activity scores and higher melanization scores, and being C. albicans strains more virulent than C. auris strains. We did not find differences in mortality between aggregative and non-aggregative C. auris strains, although non-aggregative strains produced significantly lower activity scores and higher melanization scores than aggregative ones. Survival assays using Galleria mellonella have been previously employed to examine and classify strains of this and other microbial species based on their virulence before scaling the experiments to a mammal model. Taken together, these results show how a more complete evaluation of the model can improve the study of C. auris isolates.
David Romera, John-Jairo Aguilera-Correa, Marta García-Coca, Ignacio Mahillo-Fernández, Lourdes Viñuela-Sandoval, Julio García-Rodríguez, Jaime Esteban
2252 related Products with: The Galleria mellonella infection model as a system to investigate the virulence of Candida auris strains.430 tests1 kit(96 Wells)1 kit(96 Wells)100 assays1 ml
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