The aim of this study was to investigate the role of platelet indicators in the susceptibility of ABO blood groups to lung adenocarcinoma. This was a multicenter retrospective cohort analysis. The study included 528 patients diagnosed with primary lung adenocarcinoma and 528 randomly selected control group patients who were admitted to the Chengdu Fifth People's Hospital from January 2021 to September 2023.
View Article and Find Full Text PDFLong noncoding RNAs (lncRNAs) play important roles in the progression of human cancer. It is reported that lncRNA plasmacytoma variant translocation 1 (PVT1) is involved in colorectal cancer (CRC), however, the underlying mechanism remains to be explored deeply, especially by in vivo models. In the present study, bioinformatics analysis showed that the expression level of PVT1 was upregulated in CRC tissues and highly associated with poor prognosis of CRC patients.
View Article and Find Full Text PDFBackground: Triple-negative breast cancer (TNBC) is a subtype of breast cancers with a high recurrence and mortality. The important factors promoting the TNBC process have not been fully identified. In this research, the role of a TNBC-related circular RNA (circRNA), circ_0041732, was revealed in TNBC cell tumor properties.
View Article and Find Full Text PDFBackground: It has been widely reported that the prognostic nutritional index (PNI) played a pivotal role in nutritional assessment of surgical patients and tumor prognosis. In order to improve the accuracy of evaluation in Western China, we established reference intervals (RIs) of PNI in healthy controls.
Methods: A retrospective cohort study on healthy ethnic Han adults (18-79 years) was conducted to explore the influences of age, gender, study centers, and instruments on PNI and to establish RIs.
Background: Emerging as a newly discovered type of noncoding RNAs, circular RNAs have been manifested as a crucial regulator in tumorigenesis of human malignancies, including gastric cancer (GC). Although circ-LDLRAD3 has been revealed as an oncogene in pancreatic cancer, the underlying role of circ-LDLRAD3 in GC remains poorly understood.
Aims: Exploring the underlying function of circ-LDLRAD3 on GC progression.
With the rapid development of multimedia technology, massive unlabelled data with high dimensionality need to be processed. As a means of dimensionality reduction, unsupervised feature selection has been widely recognized as an important and challenging pre-step for many machine learning and data mining tasks. Traditional unsupervised feature selection algorithms usually assume that the data instances are identically distributed and there is no dependency between them.
View Article and Find Full Text PDFBackground: Numerous studies have shown that the hematological components of the systemic inflammatory response, including the neutrophil-to-lymphocyte ratio (NLR), the platelet-to-lymphocyte ratio (PLR), the lymphocyte-to-monocyte ratio (LMR), and the systemic immune inflammation index (SII) are efficient prognostic indicators in patients with cancers. Most of the studies did not investigate the reference intervals (RIs) of these parameters in healthy controls.
Methods: A retrospective cohort study was performed on healthy ethnic Han population aged between 18 and 79 years of age by retrieving the data from a healthy routine examination center database and laboratory infor-mation system of four participating centers in western China.
The Wnt/β-catenin signaling pathway plays important roles in cancers such as colorectal cancer. Colon cancer cells secrete and express high levels of β-catenin, which may stimulate autocrine signaling and further enhance activities of the canonical Wnt signaling pathway. Free β-catenin in the cytoplasm and nucleus leads to its association with T cell factor (TCF)/lymphocyte enhancing factor (Lef) transcription factors, and subsequent transcriptional activation of downstream target genes.
View Article and Find Full Text PDFSichuan Da Xue Xue Bao Yi Xue Ban
March 2018
Objective: To study the effect of macrophage stimulating protein (MSP) on the cell cycle of non-small cell lung cancer PC14 cells without expression of recepteur d'originenanta (RON) and MSP,and analyse its effect on PC14's epithelial mesenchymal transition (EMT) capacity.
Methods: Vitro culture PC14 (blank control),PC14-Mst1-pEGFP-N1 (stablely expressed MSP) and PC14-pEGFP-N1. Cell cycles were detected by flow cytometry and the gaps between cells during growth were measured by transmission electron microscope (TEM); RT-PCR and Western blot were used to figure out the shifts of EMT related gene expression in PC14-Mst1-pEGFP-N1 cells.
Sichuan Da Xue Xue Bao Yi Xue Ban
May 2017
Objectives: To investigate the correlation between the absolute quantification of the microRNAs (miR-122, miR-451, miR-92a, miR-192) in serum during acute liver injury and the extent of liver injury on rat models of CCl induced acute liver injury and mice models of acetaminophen (APAP) induced acute liver injury. Furthermore, to investigate the correlation between the absolute quantification of microRNAs in serum and the drug induced liver injury pathological scoring system (DILI-PSS).
Methods: The acute liver injury model in rat by CCl (1.
Sichuan Da Xue Xue Bao Yi Xue Ban
January 2017
Objectives: To determine the effects of macrophage stimulating protein (Msp) on the proliferation, migration and invasion of human non-small cell lung cancer cells PC14.
Methods: The eukaryotic expression vector for was constructed and transfected into Msp(-)and RON(-)human non-small cell lung cancer cells PC14. The expression of mRNA in PC14 cells was observed by RT-PCR.
Drug resistance is a major obstacle in successful systemic therapy of metastatic cancer. We analyzed the involvement of cell cycle regulatory proteins in eliciting response to N (phosphonoacetyl)-L-aspartate (PALA), an inhibitor of de novo pyrimidine synthesis, in two metastatic variants of human cancer cell line MDA-MB-435 isolated from lung (L-2) and brain (Br-1) in nude mouse, respectively. L-2 and Br-l cells markedly differed in their sensitivity to PALA.
View Article and Find Full Text PDFSichuan Da Xue Xue Bao Yi Xue Ban
July 2011
Objective: To determine the comprehensive metabolic profiling of inflammation with capillary zone electrophoresis (CZE) in rat urine.
Methods: CZE-based metabolomics method was used to acquire urine metabolom data, with Computer Aided Similarity Evaluation System aligning peaks and analyzing urine profiling. Principle component analysis (PCA) was performed to compare and classify the phenotypes of the urine CZE spectra.
Acute gouty arthritis is a common inflammation model with multiple pathogenic mechanisms seen in clinical practice, for which acupuncture may potentially be an alternative therapy. To investigate the effect of acupuncture on acute gouty arthritis and search for its mechanism, a metabonomic method was developed in this investigation. Acute gouty arthritis model rats were induced by monosodium urate (MSU) crystals.
View Article and Find Full Text PDFSheng Wu Yi Xue Gong Cheng Xue Za Zhi
December 2010
This experimental study sought to find out the inhibitory effects of Ad-GFP-nm23-H1 on proliferation and metastasis of human colorectal carcinoma cell line Lovo, and, further, to gain an insight into some theoretical and methodical basis for instituting nm23-H1 gene therapy of cancers. MTT assay and Transwell chamber were used to detect the rates of proliferation and invasion as well as the adhesion of Lovo cells in vitro. The results demonstrated that the proliferation inhibition rates of Lovo cells treated with Ad-GFP-nm23-H1 of 10(10) PFU/ml, 10(9) PFU/ml and 10(8) PFU/ml were 84.
View Article and Find Full Text PDFJ Zhejiang Univ Sci B
January 2011
Radiation therapy has been widely applied in cancer treatment. However, it often causes thrombocytopenia (deficiency of white blood cells) as an adverse effect. Recombinant human interleukin-6 (rhIL-6) has been found to be a very effective way against this thrombocytopenia, but IL-6 has low stability in blood, which reduces its efficacy.
View Article and Find Full Text PDFSichuan Da Xue Xue Bao Yi Xue Ban
July 2010
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Objective: To analysis the metabonome characteristics of the urine of MSU crystal-induced acute gouty arthritis rats by the method of metabolomics.
Methods: Based on the method of metabolomics, which applies LC/MS as data acquisition platform, incorporating with the means of stoechiometry such as principal component analysis, we analyzed the metabonome difference between the urine of acute gouty arthritis rats and that of normal rats.
Results: Compare with control group, the metabolism status of acute gouty arthritis model group deviated.
Macaca thibetana is a threatened primate species endemic to China. Genetic diversities based on a 476-bp fragment at the 5'-end of the mitochondrial DNA control region HVSI were assessed. Haplotype diversity is high (0.
View Article and Find Full Text PDFSichuan Da Xue Xue Bao Yi Xue Ban
January 2009
Objective: To study the pharmacokinetics and tissue distribution of PEG-rhIL-6 in rats after a single dose administration.
Methods: Pharmacokinetics and distribution of PEG-rhIL-6 in rats were studied by 125I isotope tracing method. Pharmacokinetic analysis was performed using 3P97 computer software.
The complete mitochondrial genome of Macaca thibetana was determined by the long and accurate polymerase chain reaction (LA-PCR) and primer walking sequencing methods. It is 16,540 bp and contains 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes and one control region. Most codon usage followed the typical pattern of vertebrates.
View Article and Find Full Text PDFVet Immunol Immunopathol
December 2006
The cloning and sequence analysis of Tibetan macaque IFN-(gamma) and the IL-6 cDNAs are described. The Tibetan macaque IFN-gamma and IL-6 cDNAs were found to be 498 and 639 bp in length, with open reading frames encoding 165 and 212 amino acids, respectively. Homology analyses indicated that the identity levels of nucleotide and deduced amino acid sequences of IFN-gamma among primates ranged from 93.
View Article and Find Full Text PDFSheng Wu Yi Xue Gong Cheng Xue Za Zhi
August 2005
The aim of this study is to evaluate the effect of Interleukin-6 on cyclophosphamide-induced hematopoietic damnification. The doses of Interleukin-6 in 3 different regimens were hypodermally injected into dogs for 7 days respectively to establish the cyclophosphamide-induced hematopoietic damnification model. The effect of Interleukin-6 on the production of platelets and the amount of other cells in the dogs' bone marrow were determined on the 21st day.
View Article and Find Full Text PDFSichuan Da Xue Xue Bao Yi Xue Ban
January 2003
Objective: To set up the prognostic parameters for clinical use of IVF-ET technique from the male side, the influence of the quantitative parameters about sperm motility on human in vitro fertilization rate was evaluated in this study.
Methods: The sperm samples were classfied into three groups in accordance to the eggs' in vitro fertilization rate of > or =50%, <50% and zero. Besides,based on the achievement of pregnancy after embryo transfer, the samples were divided into two groups: pregnancy achieved and pregnancy not achieved.
Sichuan Da Xue Xue Bao Yi Xue Ban
November 2004
Objective: To investigate the effects of leptin on development of mouse preimplantation embryos in vitro.
Methods: (1) Groups of 2-cell stage embryos randomly selected were placed in drops of CZB medium with or without recombinant leptin (10, 50, 100 and 500 ng/ml) and were cultured to the hatched blastocyst stage, and then embryo-transfer was carried out and the implantation rate was observed and determined. (2) Groups of 2-cell stage embryos randomly selected were placed in drops of leptin free CZB medium and cultured to morula stage.