Boron has been found to be able to form multiple bonds with lead. To probe Pb-B bonding, here we report an investigation of three Pb-doped boron clusters, PbB, PbBO, and PbBO, which are produced by a laser ablation cluster source and characterized by photoelectron spectroscopy and calculations. The most stable structures of PbB, PbBO, and PbBO are found to follow the formula, [PbB(BO)] ( = 0-2), with zero, one, and two boronyl ligands coordinated to a triangular and aromatic PbB core, respectively.
View Article and Find Full Text PDFThe aim of this study was to investigate the effect and molecular mechanism of Xuebijing Injection in the treatment of sepsis-associated acute respiratory distress syndrome(ARDS) based on network pharmacology and in vitro experiment. The active components of Xuebijing Injection were screened and the targets were predicted by the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP). The targets of sepsis-associated ARDS were searched against GeneCards, DisGeNet, OMIM, and TTD.
View Article and Find Full Text PDFBackground: The role of Epstein-Barr virus (EBV) in inflammatory bowel disease (IBD) remains to be elucidated. The aim of this study was to investigate the presence of EBV in the blood and intestinal mucosa of patients with IBD and evaluate the association between EBV positivity and IBD.
Methods: Patients with IBD, hospitalized between January 2015 and April 2018, were enrolled.
Objective: This study set out to probe into the effects of long non-coding RNA (LncRNA) differentiation antagonizing non-protein coding RNA (DANCR) on apoptosis and autophagy of breast cancer (BC) cells.
Methods: The expression levels of DANCR, miR-758-3p and paired box 6 (PAX6) in BC tissues and cell lines were detected. The transcription and protein levels of PAX6, apoptosis-related factors (caspase-3, caspase-9, Bax/Bcl-2), and autophagy-related factors (LC3B, Atg5, Beclin-1) in BC cells were detected.
Introduction: To assess the clinical performance and correlations of automated chemiluminescence assay (CIA) and enzyme-linked immunosorbent assay (ELISA) for detecting antiphospholipid (aPL) antibodies in the diagnosis of antiphospholipid syndrome (APS).
Methods: The study recruited 505 subjects, including 192 with APS, 193 with connective tissue diseases other than APS, and 120 healthy donors. We measured anticardiolipin (aCL) and anti-β2-glycoprotein I (anti-β2GPI) antibodies IgG, IgM, and IgA in all the samples using both CIA and ELISA.
Background: The aim of the study was to determine the prevalence and clinical associations of antiphosphatidylserine/prothrombin antibodies (aPS/PT) with thrombosis and pregnancy loss in Chinese patients with antiphospholipid syndrome (APS) and seronegative APS (SNAPS).
Methods: One hundred and eighty six Chinese patients with APS (67 primary, 119 secondary), 48 with SNAPS, 176 disease controls (79 systemic lupus erythematosus [SLE], 29 Sjogren's syndrome [SS], 30 ankylosing spondylitis [AS], 38 rheumatoid arthritis [RA]) and 90 healthy donors were examined. IgG and IgM aPS/PT, IgG/IgM/IgA anticardiolipin (aCL) and IgG/IgM/IgA anti-β2-glycoprotein I (anti-β2GPI) antibodies were tested by ELISA.
Background: The monoclonal gammopathies are a group of plasma-cell proliferative disorders characterized by the secretion of monoclonal immunoglobulin (M protein or paraprotein). Some rare cases have revealed the specific affinity of paraprotein as autoantibody. Here we report a patient with monoclonal gammopathy of undetermined significance (MGUS) accompanied by a remarkable increase of anticardiolipin antibody (aCL) and an extensively decreased coagulation factor activity, however, without any clinical signs of antiphospholipid syndrome (APS) and bleeding.
View Article and Find Full Text PDFThis study aims to characterize the Chinese Han patients with anti-phospholipid syndrome (APS) and compare the data with those of the Euro-Phospholipid cohort. We conducted a single center study consisting of 252 patients with definite APS from 2000 to 2015. We analyzed the clinical and laboratory characteristics of our cohort and compared the data with those of the Euro-Phospholipid cohort.
View Article and Find Full Text PDFChanges of androgen receptor (AR) and insulin-like growth factor-1 (IGF-1) were investigated in LNCaP cells treated with 5α-dihydrotestosterone (DHT), estrone and flutamide. Real-time PCR, immunocytochemistry and western blotting were used to detect the expression of AR and IGF-1 in the presence or absence of various kinase inhibitors. Low concentrations of DHT, estrone and flutamide increased the expression of AR and IGF-1, especially estrone, with concentration and time dependence.
View Article and Find Full Text PDFBackground: Knowledge of allele and genotype frequencies is an essential prerequisite to the use of any human polymorphism in forensic work.
Aim: To study the genetic polymorphism and evaluate the application value of nine STR loci.
Subjects And Methods: Genotyping of nine STR loci, including D11S2368, D12S391, D13S325, D18S1364, D22-GATA198B05, D6S1043, D2S1772, D7S3048 and D8S1132, of 1050 unrelated individuals was performed with the STR_Typer_10_v1 kit and Genetic Analyzer 3100 and analyzed with PowerState V12.
Background & Objective: Cell cycle regulation is one of the most important determinants to ionizing radiosensitivity of cells. ATM gene is closely related with DNA damage repair and cell cycle checkpoints control. We previously reported that suppressing ATM expression with antisense ATM RNA could enhance radiosensitivity of nasopharyngeal carcinoma (NPC) cell line CNE1.
View Article and Find Full Text PDFWe investigated the polymorphism of five X-chromosomal short tandem repeat markers (ChrX STRs) loci (DXS7132, DXS981, DXS6803, DXS6809, and DXS6789) and their value for forensic applications. A fluorescent multiplex polymerase chain reaction (PCR) for amplifying five ChrX STRs loci in the same PCR reaction was set up. A total of 827 unrelated individuals of the Han nationality in China were tested.
View Article and Find Full Text PDFA fluorescent multiplex PCR that simultaneously amplifies five X-chromosomal short tandem repeat (X-STR) loci (DXS6803, DXS981, DXS6809, DXS6789 and DXS7132)was set up to study their polymorphic nature and to determine its use in kinship tests for forensic cases. PCR products were analyzed using capillary electrophoresis and ABI prism 3100 Genetic Analyzer with GeneMapper ID 3.1 Analysis Software.
View Article and Find Full Text PDFWe reported the multiplex-PCR-based genotyping method for 7 Y-STR loci, including DYS456, DYS464a/b/c/d, DYS527a/b labeled with FAM (blue) and DYS531, DYS709, DYS448, DYS522 labeled with JOE (green). We investigated the haplotype distribution of these 7 Y-STR loci among 151 unrelated Han males in the Guangdong Province and 106 unrelated males in the Henan Province, and evaluated this method for forensic practice. The results showed that this method could successfully determine the genotypes using as little as 0.
View Article and Find Full Text PDFAnalyzed the sequence characteristics and the genetic polymorphism of two new Y-STR loci: DYS522 and DYS527, in 151 unrelated Han males in the Guangdong Province. The results show that the DYS522 locus consists of repeats of a core sequence (GATA), with the number of repeats ranging between 9 and 13. The DYS527 locus contains two copies of a sequence motif.
View Article and Find Full Text PDFObjective: To calculate the exclusion power of STR loci in motherless parentage testing and to discuss how to draw a conclusion if there are inconsistent loci.
Methods: Based on the law of inheritance and allele frequency, the powers of exclusion of STR loci in motherless parentage testing (PE(M)) were calculated. Based on the mean PE(M) and mutation rate of 13 CODIS loci.
Background & Objective: It is reported that ATM gene is closely correlated to cellular radiosensitivity in several malignant tumors. Suppression of ATM protein expression leads to cellular radiosensitization. This study was to determine whether this effect also exists in nasopharyngeal carcinoma (NPC) cell line CNE1 by inhibiting the expression of ATM protein through antisense RNA of ATM/PI3K region, which is the most important functional fragment of ATM gene.
View Article and Find Full Text PDFObjective: To explore the distribution and genetic pattern of heteroplasmy of mtDNA control region among Chinese Han population.
Methods: The human mtDNA control region was amplified into 6 amplicons overlapped partially each other. Then these amplicons were analyzed by DHPLC which we developed to detect low heteroplasmic signals.
Zhonghua Yi Xue Yi Chuan Xue Za Zhi
October 2005
Objective: To explore the mutations of 15 short tandem repeat (STR) loci in PlowerPlex16 System which are world-widely used in parentage testing.
Methods: Mutations of 15 STR loci in PlowerPlex16 System were investigated in 1921 parentage testing cases from Chinese population.
Results: In 1921 parentage cases, seventy cases (3.
To try to elucidate the relationship between the radiosensitivity of NPC cell lines and ATM gene, this study was designed to investigate the mutation of ATM/PI3K region in NPC cell lines with different radiosensitivity. Two NPC cell lines of CNE1 and CNE2 with different radiosensitivities were established. Reverse transcriptase polymerase chain reaction (RT-PCR) was used to get a 546bp fragment (8578nt-9123nt) of ATM cDNA, containing the PI-3 kinase domain (8753-8815bp).
View Article and Find Full Text PDFThe study is to reveal the diversity and gene structure of 5' and 3' end of DYF155S1 locus in Y-chromosome minisatellite among Chinese Uygur population. Fluorescent MVR-PCR(minisatellite variant repeat by PCR), Amp-FLP(Amplified fragment length polymorphism) and DNA sequencing methods were used respectively to detect 106 unrelated males among Chinese Uygur population. The polymorphisms of DYF155S1 locus could be revealed in three aspects: (1) polymorphic length: the sizes of amplified fragments ranged from 1405 to 2505 bp.
View Article and Find Full Text PDFAccumulation of DNA damage has been associated with the onset of senescence and the predisposition to cancer. The gene responsible for ataxia telangiectasia (A-T) is ATM (Ataxia-telangiectasia mutant), a master controller of cellular pathways and networks, orchestrating the response to a specific type of DNA damage, i.e.
View Article and Find Full Text PDFThe antiproliferation effects and inhibition of telomerase activity of oridonin on leukemic HL-60 cells were studied. HL-60 cells in culture medium were treated with different concentrations of oridonin. The inhibitory rate of the cells was measured by MTT assay.
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