The ecosystem of ruminal microbiota profoundly affects the health and milk production of dairy cows. High-concentrate diets are widely used in dairy farms and evoke a series of metabolic disorders. Several studies have reported the effects of high-concentrate diets on the ruminal microbiome, while the effect of changes in ruminal microbial flora, induced by high-concentrate diet feeding, on the liver of dairy cows has not been studied before.
View Article and Find Full Text PDFReportedly, long non-coding RNA (lncRNA) are crucial modulators in neurodegenerative diseases. Herein, we investigated the role of lncRNA nuclear enriched abundant transcript 1 (NEAT1) in Parkinson's disease (PD). PD model was established based on SH-SY5Y cells treated with 1-methyl-4-phenylpyridinium (MPP+).
View Article and Find Full Text PDFAim: The aim of this study was to investigate the effect of the modified extracorporeal circulation perfusion method during surgery for acute Stanford type A aortic dissection in patients who underwent stented elephant trunk implantation and arch replacement.
Method: A total of 69 patients with acute Stanford type A aortic dissection who underwent stented elephant trunk implantation and arch replacement were retrospectively analysed from 2017 to 2018. According to the perfusion method of extracorporeal circulation, patients were divided into a routine perfusion (RP) group and a modified perfusion (MP) group.
Monoclonal antibodies are believed to be magic bullets and hold great potential for lots of biological process. About 100 μg of mAb109 was expressed in 5 × 10 cells after 10 days' immunization. Cu-NOTA-mAb109 was synthesized with the specific activity of 0.
View Article and Find Full Text PDFEndMT plays an important role in the relationship between endothelial dysfunction and atherosclerosis. This work will elucidate the biofunction induced by miR-449a and lipid rafts in EndMT and development of atherosclerosis. The differential miRNA expression between atherosclerotic plaques and normal arteries were analyzed.
View Article and Find Full Text PDFEffective drugs and strategies for treating type 2 diabetes mellitus (2‑DM) are urgently required. The aim of the present study was to elucidate the mechanism underlying microRNA (miR)‑6835‑3p regulation of adiponectin receptor 1 (AdipoR1) expression and the miR‑6835‑3p/AdipoR1 signaling pathway in pancreatic islet cells. In addition, the potential anti‑diabetes effect of miR‑6835‑3p on insulin secretion was investigated.
View Article and Find Full Text PDFWe aim to explore the associations between matrix metalloproteinase (MMP) gene polymorphism with ulinastatin (UTI) efficacy in treating severe acute pancreatitis (SAP). A total of 276 SAP patients were assigned into the control (=135) and observation (=141) groups. PCR-restriction fragment length polymorphism (PCR-RFLP) was used for genotype and allele frequency distribution.
View Article and Find Full Text PDFObjectives: Since the optimal management of patients with acute aortic dissection is unclear, this study analyzed total arch replacement combined with stented elephant trunk implantation in the treatment of acute type A aortic dissection.
Methods: Between February 2008 and February 2013, 86 consecutive patients admitted to our hospital for acute type A dissection underwent total arch replacement combined with stented elephant trunk implantation under deep hypothermic circulatory arrest. The Bentall, David, and Wheat procedure was performed on 46, 12 and two patients, respectively.
Exp Biol Med (Maywood)
September 2013
Multidrug resistance (MDR) has become a major impediment to a successful treatment for liver cancer patients, and one of the common reasons for MDR is the activation of ABCB1 gene, leading to the over-expression of P-glycoprotein (P-gp), which conferred cancer cells be resistant to a broad range of anticancer drugs. MicroRNAs (miRNAs) are a class of short, non-coding RNA moleculars that can regulate gene expression at the post-transcriptional level. In the current study, the aim is to explore whether miRNA participates in the regulation of MDR mediated by ABCB1.
View Article and Find Full Text PDFZhongguo Zhong Xi Yi Jie He Za Zhi
December 2010
Objective: To investigate the suppressive effect and mechanism of action of Zilongjin (ZLJ, a composite Chinese drug) on the growth of human breast carcinoma cell line MCF-7 in vivo and in vivo.
Methods: The cell survival rate and clone forming efficiency were observed by direct cell counting with trypan blue staining and double layers soft agar test; the p-ERK 1/2 expression was analyzed using Western blotting; 17-beta-estrogen pellet embedding was adopted to make the subcutaneous transplanted tumor MCF-7 cell in BALB/c nude mice for detecting the tumor growth suppressive effect of ZLJ (20 g crude drug/kg).
Results: The survival rate of MCF-7 cell was obviously decreased by ZLJ in a time and dose-dependent manner; only few and small clones on soft agar could be found after treated with ZLJ, the inhibition rates of clone formation(%) for 0.
Zhongguo Zhong Xi Yi Jie He Za Zhi
January 2010
Objective: To study the effect of Zilongjin (ZLJ, a composite Chinese drug) on proliferation and apoptosis of human breast carcinoma cell line MCF-7.
Methods: MCF-7 cells were randomly divided into four groups depending on the culture solution used, the control group, cultured with 1640 medium not contained ZLJ; and the three ZJL groups cultured with medium contained low (1.5 mg/mL), moderate (3 mg/mL) and high (6 mg/mL) dosage of ZLJ crude drug respectively.
Background: Surface enhanced laser desorption and ionization time-of-flight mass spectrometry (SELDI-TOF-MS) analysis on serum samples was reported to be able to detect colorectal cancer (CRC) from normal or control patients. We carried out a validation study of a SELDI-TOF MS approach with IMAC surface sample processing to identify CRC.
Methods: A retrospective cohort of 338 serum samples including 154 CRCs, 67 control cancers and 117 non-cancerous conditions was profiled using SELDI-TOF-MS.
World J Gastroenterol
March 2007
Aim: To explore a specific diagnostic method for local recurrent rectal cancer.
Methods: Immunoscintigraphy with (99m)Tc-labeled anti-CEA monoclonal antibody (MoAb) CL-58 was performed for patients suspected of having a postoperative local recurrent rectal cancer and the findings were compared with the results of conventional imaging and pathology.
Results: A total of 36 patients with a suspected local recurrent rectal cancer underwent immunoscintigraphy with (99m)Tc-conjugated CL58.
Purpose: New serum biomarkers are needed to improve the early detection of colorectal adenocarcinoma. We performed surface enhanced laser desorption and ionization time-of-flight mass spectrometry (SELDI-TOF-MS) to screen for differentially expressed proteins in serum and build a proteomic diagnostic pattern for the detection of colorectal adenocarcinoma to improve the prognosis of patients with this disease.
Experimental Design: In an attempt to improve current approaches to the serologic diagnosis of colorectal cancer, we analyzed serum samples from subjects with or without colorectal cancer using SELDI-MS.
Although gastric cancer is the second leading cause of cancer death worldwide, specific and sensitive biomarkers that can be used for its diagnosis are still unavailable. Attempting to improve on current approaches to the serological diagnosis of gastric cancer, we subjected serum samples from 245 individuals (including 127 gastric cancer patients, 100 age- and sex-matched healthy individuals, nine benign gastric lesion patients and nine colorectal cancer patients) for analysis by surface-enhanced laser desorption/ionization (SELDI) mass spectrometry. Peaks were detected with Ciphergen SELDI software version 3.
View Article and Find Full Text PDFAim: Cyclooxygenase-2 (COX-2) is one of the rate-limiting enzymes in metabolism of arachidonic acid, and COX-2 inhibitors demonstrate preventive effects on cancer, especially on colorectal cancer. The underlying mechanism remains unclear. The aim of this study was to illustrate the relationship between angiogenesis and COX-2 in carcinogenesis of colorectal cancer.
View Article and Find Full Text PDFPurpose: The aim of this study was to evaluate the applicability of 125I-labeled carcinoembryonic antigen-specific monoclonal antibody CL58 in clinical radioimmunoguided surgery for colorectal cancer.
Methods: First, we tested the purity and affinity constant of CL58 and measured the binding affinity of CL58 to colorectal cancer cells and normal cells. Second, we injected 125I-labeled CL58 into nude mice with colon cancers.
Aim: Recent clinical epidemiological studies have demonstrated the preventive effect of non-steroidal anti-inflammatory drugs (NSAIDs) against colorectal cancer. The underlying mechanism might be the inhibition of rate-limiting enzyme cyclooxygenase-2 (COX-2) in metabolism of arachidonic acid. The role of COX-2 in carcinogenesis of colorectal cancer and its relationship with tumor biological characteristics and patients' prognosis still remain unclear.
View Article and Find Full Text PDFZhonghua Wai Ke Za Zhi
November 2002
Objective: To summarize the experience of mitral valve (MV) repair in infants and young children with congenital mitral malformation.
Methods: Thirty-eight consecutive infants and young children with this disease, aged (2.3 +/- 1.
Aim: To optimize conditions of DHPLC and analyze the effectiveness of various DNA polymerases on DHPLC resolution, and evaluate the sensitivity of DHPLC in the mutation screening of mitochondrial DNA (mtDNA).
Methods: Two fragments of 16s gene of mitochondrial DNA (one of them F2 is a mutant fragment) and an A3243G mutated fragment were used to analyze the UV detection limit and determine the minimum percentage of mutant PCR products for DHPLC and evaluate effects of DNA polymerases on resolution of DHPLC. Under the optimal conditions, we analyzed the mtDNA mutations from muscle tissues of mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) and screened blindly for variances in D-loop region of mtDNA from human gastric tumor specimen.