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Carbon monoxide releasing molecule-2 suppresses proliferation, migration, invasion, and promotes apoptosis in non-small cell lung cancer Calu-3 cells.

Non-small cell lung cancer (NSCLC) is the most common type of lung cancer, which is the leading cause of cancer-related morbidity and mortality worldwide. The carbon monoxide-releasing molecules (CO-RMs) are transition metal carbonyls with the capacity to release carbon monoxide (CO). The aims of our study were to assess the effects and underlying mechanisms of CO-releasing molecules-2 (CORM-2) on proliferation, migration, invasion and apoptosis in NSCLC cells, and to evaluate its potential application for lung cancer.

1632 related Products with: Carbon monoxide releasing molecule-2 suppresses proliferation, migration, invasion, and promotes apoptosis in non-small cell lung cancer Calu-3 cells.

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Tryptophan metabolic profile in term and preterm breast milk: implications for health.

Breast milk is the only source of the essential amino acid tryptophan (TRP) in breast-fed infants. Low levels of TRP could have implications for infant neurodevelopment. The objectives of the present study were to compare the relationship of TRP and its neuroactive pathway metabolites kynurenine (Kyn) and kynurenic acid (KynA) in preterm and term expressed breast milk (EBM) in the first 14 d following birth, and the relationship of TRP metabolism to maternal stress and immune status. A total of twenty-four mothers were recruited from Cork University Maternity Hospital: twelve term (>38 weeks) and twelve preterm (<35 weeks). EBM samples were collected on days 7 and 14. Free TRP, Kyn and KynA were measured using HPLC, total TRP using MS, cytokines using the Meso Scale Discovery (MSD) assay system, and cortisol using a cortisol ELISA kit. Although total TRP was higher in preterm EBM in comparison with term EBM ( < 0·05), free TRP levels were lower ( < 0·05). Kyn, KynA and the Kyn:TRP ratio increased significantly in term EBM from day 7 to day 14 ( < 0·05), but not in preterm EBM. TNF-α, IL-6 and IL-8 were higher in day 7 preterm and term EBM in comparison with day 14. There were no significant differences between term and preterm EBM cortisol levels. Increased availability of total TRP, lower levels of free TRP and alterations in the temporal dynamics of TRP metabolism in preterm compared with term EBM, coupled with higher EBM inflammatory markers on day 7, may have implications for the neurological development of exclusively breast-fed preterm infants.

2745 related Products with: Tryptophan metabolic profile in term and preterm breast milk: implications for health.

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Cinobufagin Induces Apoptosis in Osteosarcoma Cells Via the Mitochondria-Mediated Apoptotic Pathway.

Osteosarcoma is a common primary malignant bone tumor that mainly occurs in childhood and adolescence. Despite developments in the diagnosis and treatment of osteosarcoma, the prognosis is still very poor. Cinobufagin is an active component in the anti-tumor Chinese medicine called "Chan Su", and we previously revealed that cinobufagin induced apoptosis and reduced the viability of osteosarcoma cells; however, the underlying mechanism remains to be elucidated. Herein, the present study was undertaken to illuminate the molecular mechanism of cinobufagin-induced apoptosis of osteosarcoma cell.

2257 related Products with: Cinobufagin Induces Apoptosis in Osteosarcoma Cells Via the Mitochondria-Mediated Apoptotic Pathway.

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Biases from different DNA extraction methods in intestine microbiome research based on 16S rDNA sequencing: a case in the koi carp, Cyprinus carpio var. Koi.

This study examined the technical bias associated with different DNA extraction methods used in microbiome research. Three methods were used to extract genomic DNA from the same intestinal microbiota sample that was taken from the koi carp Cyprinus carpio var. koi, after which their microbial diversity and community structure were investigated on the basis of a 16S rDNA high-throughput sequencing analysis. Biased results were observed in relation to the number of reads, alpha diversity indexes and taxonomic composition among the three DNA extraction protocols. A total of 1,381 OTUs from the intestinal bacteria were obtained, with 852, 759, and 698 OTUs acquired, using the Lysozyme and Ultrasonic Lysis method, Zirmil-beating Cell Disruption method, and a QIAamp Fast DNA Stool Mini Kit, respectively. Additionally, 336 OTUs were commonly acquired, using the three methods. The results showed that the alpha diversity indexes (Rarefaction, Shannon, and Chao1) of the community that were determined using the Lysozyme and Ultrasonic Lysis method were higher than those obtained with the Zirmil-beating Cell Disruption method, while the Zirmil method results were higher than those measured, using the QIAamp Fast DNA Stool Mini Kit. Moreover, all the major phyla (ratio>1%) could be identified with all three DNA extraction methods, but the phyla present at a lower abundance (ratio <1%) could not. Similar findings were observed at the genus level. Taken together, these findings indicated that the bias observed in the results about the community structure occurred primarily in OTUs with a lower abundance. The results of this study demonstrate that possible bias exists in community analyses, and researchers should therefore be conservative when drawing conclusions about community structures based on the currently available DNA extraction methods.

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A Systematic Comparative Evaluation of Ga-Labeled RGD Peptides Conjugated with Different Chelators.

The present paper reports a systematic study on the effect of bifunctional chelators (BFC) namely, NOTA, DOTA, and DTPA, on the radiochemical formulation, in vitro stability, and in vivo biological properties of Ga-labeled RGD peptide derivatives.

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A comparison of methods used to unveil the genetic and metabolic pool in the built environment.

A majority of indoor residential microbes originate from humans, pets, and outdoor air and are not adapted to the built environment (BE). Consequently, a large portion of the microbes identified by DNA-based methods are either dead or metabolically inactive. Although many exceptions have been noted, the ribosomal RNA fraction of the sample is more likely to represent either viable or metabolically active cells. We examined methodological variations in sample processing using a defined, mock BE microbial community to better understand the scope of technique-based vs. biological-based differences in both ribosomal transcript (rRNA) and gene (DNA) sequence community analysis. Based on in vitro tests, a protocol was adopted for the analysis of the genetic and metabolic pool (DNA vs. rRNA) of air and surface microbiomes within a residential setting.

2877 related Products with: A comparison of methods used to unveil the genetic and metabolic pool in the built environment.

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Treatment-emergent hypertension and efficacy in the phase 3 Study of (E7080) lenvatinib in differentiated cancer of the thyroid (SELECT).

Hypertension (HTN) is an established class effect of vascular endothelial growth factor receptor (VEGFR) inhibition. In the phase 3 Study of (E7080) Lenvatinib in Differentiated Cancer of the Thyroid (SELECT) trial, HTN was the most frequent adverse event of lenvatinib, an inhibitor of VEGFR1, VEGFR2, VEGFR3, fibroblast growth factor receptor 1 (FGFR1), FGFR2, FGFR3, FGFR4, platelet-derived growth factor receptor α (PDGFRα), ret proto-oncogene (RET), and stem cell factor receptor (KIT). This exploratory analysis examined treatment-emergent hypertension (TE-HTN) and its relation with lenvatinib efficacy and safety in SELECT.

1856 related Products with: Treatment-emergent hypertension and efficacy in the phase 3 Study of (E7080) lenvatinib in differentiated cancer of the thyroid (SELECT).

FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu Thermal Shaker with cooli Esophageal cancer and adj Multiple organ tumor tiss High density ovarian canc Thyroid cancer test tissu Thyroid cancer test tissu

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Highly efficient DNA extraction and purification from olive oil on a washable and reusable miniaturized device.

Sample preparation from complex matrixes with minute DNA content could highly benefit from the miniaturization of solid phase extraction (SPE) based devices due to an increased surface area-to-volume ratio. However, the adaptation of "bench-top" based protocols for DNA purification to miniaturized devices is not as straightforward as it might seem, and several issues need to be considered. A careful evaluation of DNA extraction and purification protocols needs to be performed, taking into account the complexity of such samples, and in order to facilitate the integration with the subsequent step, normally DNA amplification. In this work a washable and reusable miniaturized device for DNA purification based on microscale solid phase extraction (μSPE), containing a commercial disposable silica membrane as the solid phase for DNA capture, was developed. The DNA purification protocol was firstly optimized by testing a set of different conditions, including buffer composition in all three steps of analysis and incubation during the elution step, with the objective of increasing the DNA yield and facilitating the integration in a miniaturized setting. This protocol was then tested with olive oil samples, including a pretreatment step also developed and optimized in this work. DNA analysis of olive oil samples is of high interest for the detection of fraudulent adulteration with oil from other seeds and for cultivar identification. The results were compared with the commercial NucleoSpin Food kit regarding efficiency and purity of the DNA extract, by estimating the DNA yield and evaluating the absorbance ratios A260/280 and A260/230. The miniaturized DNA purification device showed better performance than the commercial kit tested, making this method a very promising sample preparation approach for olive oil and other samples with minute DNA content.

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[Vaspin protects against lipopolysaccharide-induced acute respiratory distress syndrome in mice by inhibiting inflammation and protecting vascular endothelium via PI3K/Akt signal pathway].

To investigate the effects of Vaspin on lipopolysaccharide (LPS)-induced acute respiratory distress syndrome (ARDS) in mice and explore the possible mechanism.

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Inhibition of MicroRNA-23 Contributes to the Isoflurane-Mediated Cardioprotection Against Oxidative Stress.

Isoflurane is one of the most frequently used volatile anesthetics in clinical practice for inhalational anesthesia. It is widely studied that isoflurane mediates cardioprotection during multiple pathological processes. However, the precise mechanisms have not been fully elucidated. Neonatal cardiomyocytes were isolated and cultured, followed by treatments with isoflurane at 0, 50, 100 or 200 µM. Rat cardiomyoblast cell line, H9c2, was treated with HO. Expression of miR-23 was measured by qRT-PCR. The cell survival rate of H9c2 in response to HO treatments was evaluated by MTT assay. The ROS and GSH/GSSG levels were measured using Superoxide Detection Kit and GSH/GSSG Ratio Detection Assay Kit. In this study, we report an isoflurane-miR-23-antioxidant axis in cardiomyocyte. We observed that miR-23 was suppressed by isoflurane treatments at 50, 100 or 200 µM. Moreover, cardiomyocyte with isoflurane exposure was insensitive to HO treatment in vitro. Inhibition of miR-23 protected cardiomyocyte against oxidative stress induced by HO treatments at 30, 60, 90 or 120 µM. In addition, overexpression of miR-23 induced ROS generation over twofolds and rendered cardiomyocyte sensitive to HO treatments. We demonstrate that miR-23 inhibited intracellular GSH, an antioxidant against oxidative stress. Our results reveal that with isoflurane exposure, overexpression of miR-23 rendered cardiomyocyte sensitive to HO treatments at 20, 30, 40, 50 µM. Pretreatments with GSH in miR-23 overexpressing cells rescued the cell death under oxidative stress. In summary, our results illustrate that the isoflurane-mediated protection of cardiomyocytes under oxidative stress is through inhibition of miR-23. This study provides an aspect for the miRNAs-modulated cardiomyocyte sensitivity to oxidative stress, contributing to the development of therapeutic agents.

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