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Huang LL, Qiu YM, Sun LL, Li J, Pan YH, Wang YL, Yuan ZH. Dietary exposure assessment of cyadox based on tissue depletion of cyadox and its major metabolites in pigs, chickens, and carp. J Vet Pharmacol Ther 2017; 41:125-136. [DOI: 10.1111/jvp.12440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 06/20/2017] [Indexed: 11/29/2022]
Affiliation(s)
- L. L. Huang
- MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products; Huazhong Agricultural University; Wuhan Hubei China
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety; Huazhong Agricultural University; Wuhan Hubei China
| | - Y. M. Qiu
- National Reference Laboratory of Veterinary Drug Residues (HZAU); MAO Key Laboratory for Detection of Veterinary Drug Residues; Huazhong Agricultural University; Wuhan Hubei China
| | - L. L. Sun
- MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products; Huazhong Agricultural University; Wuhan Hubei China
- National Reference Laboratory of Veterinary Drug Residues (HZAU); MAO Key Laboratory for Detection of Veterinary Drug Residues; Huazhong Agricultural University; Wuhan Hubei China
| | - J. Li
- MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products; Huazhong Agricultural University; Wuhan Hubei China
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety; Huazhong Agricultural University; Wuhan Hubei China
| | - Y. H. Pan
- MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products; Huazhong Agricultural University; Wuhan Hubei China
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety; Huazhong Agricultural University; Wuhan Hubei China
| | - Y. L. Wang
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety; Huazhong Agricultural University; Wuhan Hubei China
- National Reference Laboratory of Veterinary Drug Residues (HZAU); MAO Key Laboratory for Detection of Veterinary Drug Residues; Huazhong Agricultural University; Wuhan Hubei China
| | - Z. H. Yuan
- MOA Laboratory of Risk Assessment for Quality and Safety of Livestock and Poultry Products; Huazhong Agricultural University; Wuhan Hubei China
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety; Huazhong Agricultural University; Wuhan Hubei China
- National Reference Laboratory of Veterinary Drug Residues (HZAU); MAO Key Laboratory for Detection of Veterinary Drug Residues; Huazhong Agricultural University; Wuhan Hubei China
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Hou HT, Qiu YM, Zhao HW, Li DH, Liu YT, Wang YZ, Su SH. [Effect of curcumin on intestinal mucosal mechanical barrier in rats with non-alcoholic fatty liver disease]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:134-138. [PMID: 28297801 DOI: 10.3760/cma.j.issn.1007-3418.2017.02.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of curcumin on intestinal mucosal mechanical barrier in rats with non-alcoholic fatty liver disease. Methods: A total of 30 male Sprague-Dawley rats were equally divided into normal control group, model group, and curcumin intervention group. The rats in the model group and the curcumin intervention group were given high-fat feed for 16 weeks, and those in the curcumin intervention group were given curcumin 200 mg/kg/day by gavage once a day after 8 weeks of high-fat feeding. The rats were sacrificed at the end of week 16. A light microscope was used to observe pathological changes in the liver, an electron microscope was used to observe the tight junction of the intestinal mucosa, an automatic biochemical analyzer was used to measure the serum levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST), chromogenic substrate Limulus amebocyte lysate assay was used to measure plasma lipopolysaccharide (LPS) level, spectrophotometric method was used to measure the activity of serum diamine oxidase, ELISA was used to measure the serum level of tumor necrosis factor-α (TNFα), and immunohistochemistry was used to measure the expression of the tight junction protein occludin. One-way ANOVA test and SNK-q test were used for statistical analysis. Results: Under the light microscope, the control group had no hepatocyte steatosis, the model group had significant hepatocyte steatosis and inflammatory cell infiltration, and the curcumin intervention group had reduced hepatocyte steatosis and inflammatory cell infiltration. Under the electron microscope, the control group had a clear and complete structure of the tight junction of the intestinal mucosa and normal structures of mitochondria and endoplasmic reticulum; in the model group, the structure of the tight junction of the intestinal mucosa was destroyed, the intercellular space was widened, the desmosomes had a loose structure, there was edema in some mitochondria, and the endoplasmic reticulum was dilated; the curcumin intervention group had improvements in the structure of tight junction of the intestinal mucosa, intercellular space, edema in the mitochondria, and dilation of the endoplasmic reticulum. Compared with the control group, the model group had significant increases in the serum levels of AST, ALT, DAO, TNFα, and LPS (q = -15.918, -14.402, -33.700, -8.944, and -10.832, P < 0.05); compared with the model group, the curcumin intervention group had significant reductions in the serum levels of AST, ALT, DAO, TNFα, and LPS (q = 10.457, 7.752, 18.802, 5.202, and 4.279, P < 0.05). In the control group, occludin showed a linear distribution along the top of small intestinal mucosal epithelial cells. The model group had a significant reduction in positive staining compared with the control group, and the curcumin intervention group had a significant increase in positive staining compared with the model group. The relative expression of occludin was 0.29±0.03 in the control group, 0.12±0.02 in the model group, and 0.21±0.02 in the curcumin intervention group (P < 0.05). Conclusion: Intestinal mucosal mechanical barrier is impaired in rats with NAFLD. Curcumin can reduce such damage, and its mechanism of action may be related to up-regulating the expression of occludin in the intestinal mucosa and reducing the levels of TNFα and LPS.
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Affiliation(s)
- H T Hou
- Department of Gastroenterology, People's Hospital of Hebei Province, Shijiazhuang 050051, China
| | - Y M Qiu
- Department of Paediatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - H W Zhao
- Department of Gastroenterology, People's Hospital of Hebei Province, Shijiazhuang 050051, China
| | - D H Li
- Department of Gastroenterology, People's Hospital of Hebei Province, Shijiazhuang 050051, China
| | - Y T Liu
- Department of Gastroenterology, People's Hospital of Hebei Province, Shijiazhuang 050051, China
| | - Y Z Wang
- Department of Gastroenterology, People's Hospital of Hebei Province, Shijiazhuang 050051, China
| | - S H Su
- Department of Gastroenterology, People's Hospital of Hebei Province, Shijiazhuang 050051, China
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Cheng JL, Li J, Qiu YM, Wei CL, Yang LQ, Fu JJ. Development of novel SCAR markers for genetic characterization of Lonicera japonica from high GC-RAMP-PCR and DNA cloning. Genet Mol Res 2016; 15:gmr7737. [PMID: 27173286 DOI: 10.4238/gmr.15027737] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Sequence-characterized amplified region (SCAR) markers were further developed from high-GC primer RAMP-PCR-amplified fragments from Lonicera japonica DNA by molecular cloning. The four DNA fragments from three high-GC primers (FY-27, FY-28, and FY-29) were successfully cloned into a pGM-T vector. The positive clones were sequenced; their names, sizes, and GenBank numbers were JYHGC1-1, 345 bp, KJ620024; YJHGC2-1, 388 bp, KJ620025; JYHGC7-2, 1036 bp, KJ620026; and JYHGC6-2, 715 bp, KJ620027, respectively. Four novel SCAR markers were developed by designing specific primers, optimizing conditions, and PCR validation. The developed SCAR markers were used for the genetic authentication of L. japonica from its substitutes. This technique provides another means of developing DNA markers for the characterization and authentication of various organisms including medicinal plants and their substitutes.
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Affiliation(s)
- J L Cheng
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou, Sichuan, China
| | - J Li
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou, Sichuan, China
| | - Y M Qiu
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou, Sichuan, China.,Maternal and Child Health Care Hospital of Zigong, Zigong, Sichuan, China
| | - C L Wei
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou, Sichuan, China.,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - L Q Yang
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou, Sichuan, China
| | - J J Fu
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou, Sichuan, China.,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.,Judicial Authentication Center, Sichuan Medical University, Luzhou City, Sichuan, China
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Yang WC, Zhu L, Qiu YM, Zhou BX, Cheng JL, Wei CL, Chen HC, Li LY, Fu XD, Fu JJ. Isolation and analysis of cell-free fetal DNA from maternal peripheral blood in Chinese women. Genet Mol Res 2015; 14:18078-89. [PMID: 26782455 DOI: 10.4238/2015.december.22.34] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Non-invasive prenatal diagnosis is used to detect the genetic material of the fetus by isolating the cell-free fetal DNA (cffDNA) from maternal peripheral blood. In order to establish an isolation method for cffDNA from maternal peripheral blood in Chinese women, the cffDNA was acquired with a two-step centrifugation using a QlAamp DNA Blood mini kit. The SRY gene of plasma DNA was amplified by polymerase chain reaction (PCR). Real-time quantitative PCR was used to measure the concentration of cffDNA in maternal peripheral blood in different pregnant women. The results of the SRY gene amplification of plasma DNA from pregnant women was the same as that of the amniocyte DNA. The average concentration of cffDNA in maternal peripheral blood of pregnant women in different gestational stages was 0.98 ng/mL (0.26-1.49 ng/mL), 1.43 ng/mL (0.46- 2.34 ng/mL), and 1.95 ng/mL (0.65-6.81 ng/mL) from early, middle, and late gestational stages, respectively. The mean of cffDNA from total DNA in plasma in different stages of gestation was 22.28% (9.86-27.81%). The lowest concentration of DNA amplified by nested-PCR in our research was 10-4-10-3 ng/μL. The isolation method for cffDNA from maternal peripheral blood was successfully established and further research into its applications will be conducted.
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Affiliation(s)
- W C Yang
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou City, Sichuan Province, China
| | - L Zhu
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou City, Sichuan Province, China
| | - Y M Qiu
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou City, Sichuan Province, China.,Maternal and Child Health Care Hospital of Zigong, Zigong, Sichuan Province, China
| | - B X Zhou
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou City, Sichuan Province, China
| | - J L Cheng
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou City, Sichuan Province, China
| | - C L Wei
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou City, Sichuan Province, China.,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), China
| | - H C Chen
- Department of Biochemistry, School of Life Sciences & the State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan Province, China
| | - L Y Li
- Institute of Reproduction and Stem Cell Engineering, Central South University Xiangya School of Medicine, Changsha, Hunan Province, China
| | - X D Fu
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan Province, China
| | - J J Fu
- Key Laboratory of Epigenetics and Oncology, The Research Center for Preclinical Medicine, Sichuan Medical University, Luzhou City, Sichuan Province, China.,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), China.,Department of Obstetrics and Gynecology, First Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan Province, China
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Zhang JN, Yi SH, Zhang XH, Liu XY, Mao Q, Li SQ, Xiong WH, Qiu YM, Chen T, Ge JW. Association of p53 Arg72Pro and MDM2 SNP309 polymorphisms with glioma. Genet Mol Res 2012; 11:3618-28. [PMID: 23096687 DOI: 10.4238/2012.october.4.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Epidemiological studies of the association of variants p53 Arg72Pro and MDM2 single-nucleotide polymorphism 309 (SNP309) with glioma risk have produced inconsistent results. The aim of the current study was to evaluate the association of these 2 variants with glioma susceptibility using a meta-analysis approach. For p53 Arg72Pro, 10 case-control studies including 2587 glioma patients and 4061 unrelated controls were identified. The pooled odds ratios (ORs) for Arg/Pro heterozygotes and Pro/Pro homozygotes were 1.08 [95% confidence interval (95%CI) = 0.85-1.37] and 1.08 (95%CI = 0.85-1.36), respectively, when compared to Arg/Arg carriers. Under the dominant effect model, Pro allele carriers also showed no significantly elevated glioma risk (pooled OR = 1.11, 95%CI = 0.90-1.38), and similar results were found under the recessive-effect model (pooled OR = 1.17, 95%CI = 0.85-1.61). For variant MDM2 SNP309, 3 case-control studies including 606 cases and 309 controls were identified. A marginal association with glioma risk was found for heterozygous G/T carriers (pooled OR = 1.95, 95%CI = 1.00- 3.81), whereas homozygous G/G carriers showed an increased but not significantly elevated risk of glioma (pooled OR = 2.14, 95%CI = 0.71-6.45) compared with that of T/T homozygotes. We also found no significant association between the MDM2 SNP309 polymorphism and glioma risk (pooled OR = 1.86, 95%CI = 0.94-3.67 and pooled OR = 1.25, 95%CI = 0.62-2.56, respectively) under the dominant and recessive models. Taken together, the current data suggested that the 2 polymorphisms may not contribute to glioma susceptibility.
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Affiliation(s)
- J N Zhang
- Operation Room, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, P.R. China
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Qiu YM, Liu YT, Li ST. Tramadol requirements may need to be increased for the perioperative management of pain in smokers. Med Hypotheses 2011; 77:1071-3. [PMID: 22001127 DOI: 10.1016/j.mehy.2011.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2011] [Accepted: 09/05/2011] [Indexed: 01/07/2023]
Abstract
Evidence indicates that smokers have hyperalgesia perioperatively as characterized by a higher postoperative pain score as well as increased requirements of opioids during surgery and postoperative patient-controlled analgesia compared with non-smokers. The possible mechanism of hyperalgesia for smokers is related to nicotinic acetylcholine receptor (nAChR) desensitization as well as competitive occupancy for binding sites. For smokers, high doses of opioids are needed perioperatively whereas small doses of nicotine do not reduce postoperative opioid requirements. Nicotine replacement treatment has been proved to be effective only for non-smokers. The serotonergic system plays an important part in modulating anti-nociception, and decreasing the concentration of serotonin in vesicles in neurons of the brain and spinal cord is an effective method. Intraoperative application of tramadol could result in an analgesic effect via enhancement of descending inhibitory pain pathways. Therefore, increasing the amount of tramadol given intraoperatively and postoperatively may reduce overall opioid requirements, and decrease the pain score as well as morphine consumption postoperatively.
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Affiliation(s)
- Y M Qiu
- Department of Anesthesiology, Shanghai First People's Hospital, No 100 Haining Road, Hongkou District, Shanghai, China
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