995 research outputs found
Research of smart car's speed control based on the internal model control
No full textBased on analyzing principle about the smart car's speed control system, the system mathematical model is built. Considering the control optimization, a novel control scheme is proposed based on internal model control, and the internal model controller of speed control system is established. Regarding this subject, the internal control theory is introduced to verify the control performance; the traditional PID control method is employed in the experiment. The experiment indicates that the proposed method based on internal model control is easier to determine parameter and has a well robust and good control result of smart car's speed. © 2014 Han Yu et al
The influence of peri-conception and first trimester dietary restriction of protein in cattle on meat quality traits of entire male progeny
No full textAbstract not availableTharcilla I.R.C. Alvarenga, Katrina J. Copping, Xuemei Han, Edward H. Clayton, Richard J. Meyer, Raymond J. Rodgers, I. Caroline McMillen, Viv E.A. Perry, Geert Geesin
Susceptibility loci for pigmentation and melanoma in relation to Parkinson's disease
No full textGrowing evidence suggests that Parkinson's disease (PD) patients have a lower risk for most types of cancer except for melanoma, which has a modest positive association with PD. Pigmentation genes have been hypothesized to contribute to this association. We therefore examined whether genetic susceptibility loci for pigmentation or melanoma was associated with PD risk in 2 large independent datasets. In the Parkinson's Genes and Environment (PAGE) study, we examined 11 single-nucleotide polymorphisms (SNPs) identified from previous genome-wide association studies (GWAS) of pigmentation or melanoma in relation to PD among 808 PD cases and 1623 controls; furthermore, we also examined the colors of hair, eye, or skin and melanoma in relation to PD. In the International Parkinson's Disease Genomic Consortium (IPDGC), we examined a broader selection of 360 pigmentation or melanoma GWAS SNPs in relation to PD among 5,333 PD cases and 12,019 controls. All participants were non-Hispanic Whites. As expected, in the PAGE study, most SNPs were associated with 1 or more pigmentation phenotypes. However, neither these SNPs nor pigmentation phenotypes were associated with PD risk after Bonferroni correction with the exception of rs4911414 at the ASIP gene (p = .001). A total of 18 PD cases (2.2%) and 26 controls (1.6%) had a diagnosis of melanoma with an odds ratio of 1.3 (95% confidence interval: 0.7-2.4). In the IPDGC analysis, none of the 360 SNPs, including rs4911414, were associated with PD risk after adjusting for multiple comparisons. In conclusion, we did not find significant associations between GWAS SNPs of pigmentation or melanoma and the risk for PD
sj-pdf-1-msj-10.1177_13524585211032800 – Supplemental material for Structural and functional hippocampal alterations in Multiple sclerosis and neuromyelitis optica spectrum disorder
No full textSupplemental material, sj-pdf-1-msj-10.1177_13524585211032800 for Structural and functional hippocampal alterations in Multiple sclerosis and neuromyelitis optica spectrum disorder by Fenglian Zheng, Yuxin Li, Zhizheng Zhuo, Yunyun Duan, Guanmei Cao, Decai Tian, Xinghu Zhang, Kuncheng Li, Fuqing Zhou, Muhua Huang, Haiqing Li, Yongmei Li, Chun Zeng, Ningnannan Zhang, Jie Sun, Chunshui Yu, Xuemei Han, Sven Hallar, Frederik Barkhof and Yaou Liu in Multiple Sclerosis Journal</p
Protein-altering germline mutations implicate novel genes related to lung cancer development
No full textAbstract Few germline mutations are known to affect lung cancer risk. We performed analyses of rare variants from 39,146 individuals of European ancestry and investigated gene expression levels in 7,773 samples. We find a large-effect association with an ATM L2307F (rs56009889) mutation in adenocarcinoma for discovery (adjusted Odds Ratio = 8.82, P = 1.18 × 10 −15 ) and replication (adjusted OR = 2.93, P = 2.22 × 10 −3 ) that is more pronounced in females (adjusted OR = 6.81 and 3.19 and for discovery and replication). We observe an excess loss of heterozygosity in lung tumors among ATM L2307F allele carriers. L2307F is more frequent (4%) among Ashkenazi Jewish populations. We also observe an association in discovery (adjusted OR = 2.61, P = 7.98 × 10 −22 ) and replication datasets (adjusted OR = 1.55, P = 0.06) with a loss-of-function mutation, Q4X (rs150665432) of an uncharacterized gene, KIAA0930 . Our findings implicate germline genetic variants in ATM with lung cancer susceptibility and suggest KIAA0930 as a novel candidate gene for lung cancer risk
The injury-induced myokine insulin-like 6 is protective in experimental autoimmune myositis
No full textBackground The idiopathic inflammatory myopathies represent a group of autoimmune diseases that are characterized by lymphocyte infiltration of muscle and muscle weakness. Insulin-like 6 (Insl6) is a poorly characterized member of the insulin-like/relaxin family of secreted proteins, whose expression is upregulated upon acute muscle injury. Methods In this study, we employed Insl6 gain or loss of function mice to investigate the role of Insl6 in a T cell-mediated model of experimental autoimmune myositis (EAM). EAM models in rodents have involved immunization with human myosin-binding protein C with complete Freund’s adjuvant (CFA) emulsions and pertussis toxin. Results Insl6-deficiency in mice led to a worsened myositis phenotype including increased infiltration of CD4 and CD8 T cells and the elevated expression of inflammatory cytokines. Insl6-deficient mice show significant motor function impairment when tested with treadmill or Rotarod devices. Conversely, muscle-specific overexpression of Insl6 protected against the development of myositis as indicated by reduced lymphocyte infiltration in muscle, diminished inflammatory cytokine expression and improved motor function. The improvement in myositis by Insl6 could also be demonstrated by acute hydrodynamic delivery of a plasmid encoding murine Insl6. In cultured cells, Insl6 inhibits Jurkat cell proliferation and activation in response to phytohemagglutinin/phorbol 12-myristate 13-acetate stimulation. Insl6 transcript expression in muscle was reduced in a cohort of dermatomyositis and polymyositis patients. Conclusions These data suggest that Insl6 may have utility for the treatment of myositis, a condition for which few treatment options exist
Artesunate exerts specific cytotoxicity in retinoblastoma cells via CD71
No full textRetinoblastoma (RB) is an intraocular cancer that affects young children. There is an ongoing effort to find new agents for RB management that are effective, specific and with few side-effects. In the present study, we tested artesunate (ART), a synthetic derivative from the herbal drug artemisinin, used in the clinic for the treatment of malaria. We analyzed ART cytotoxicity in an RB cell line (RB-Y79) and in a retinal epithelial cell line (hTERT-RPE1) by flow cytometric analysis (FCM). We related the effect of ART to the expression of transferrin receptor 1 (TfR-1, also known as CD71) by knocking down CD71 with RNAi and analyzing cell cycle variables by FCM. We found that the cytotoxic action of ART is specific for RB cells in a dose-dependent manner, with low toxicity in normal retina cells. ART is more effective in RB than carboplatin with a markedly strong cytotoxic effect on carboplatin-resistant RB cells. RB had higher CD71 levels at the membrane compared to normal retinal cells. We showed that ART internalization in RB cells is dependent upon the expression of the CD71. In addition, ART blocked the cell cycle progression at the G1 phase, even at low doses, and decreased the proportion of RB cells in the S phase. In conclusion, we showed that ART is a promising drug exhibiting high selective cytotoxicity even against multidrug-resistant RB cells. Thus, we suggest that ART could be used in the treatment of RB.Fil: Zhao, Fei. Xuzhou Medical College; China. The General Hospital of The Chinese People; ChinaFil: Wang, Han. Poten Biomedical Institute for Cancer Immunotherapy; ChinaFil: Kunda, Patricia Elena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Poten Biomedical Institute for Cancer Immunotherapy; ChinaFil: Chen, Xuemei. Poten Biomedical Institute for Cancer Immunotherapy; China. Xi; ChinaFil: Liu, Qiu Ling. The General Hospital of The Chinese People; ChinaFil: Liu, Tao. Poten Biomedical Institute for Cancer Immunotherapy; Chin
Investigation of machined surface quality about single crystal with vacancy by molecular dynamics simulation
No full textOptic Neuritis in a Pediatric Patient with Kikuchi–Fujimoto Disease: A Case Report and Review of the Literature
No full textShengfang Bao, Hua Huang, Yingying Jin, Fei Ding, Zhen Yang, Xuemei Xu, Chenxi Liu, Xiqiong Han, Liping Wang, Jingyi Lu, Jiani Ma, Yanliang Jin Department of Rheumatology & Immunology, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People’s Republic of ChinaCorrespondence: Yanliang Jin, Email [email protected]: Kikuchi-Fujimoto disease (KFD), also known as histiocytic necrotizing lymphadenitis, is a rare, benign, and self-limiting condition characterized by lymph node inflammation. While KFD is rarely associated with ocular manifestations, our case report highlights bilateral optic neuritis in a 13-year-old male patient with KFD. We also provide a comprehensive review of similar cases in the literature.Keywords: Kikuchi-Fujimoto disease, optic neuritis, neuromyelitis optica spectrum disorder, vision deficienc
- …
