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排序方式: 共有144条查询结果,搜索用时 31 毫秒
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M. Belén García-Rodríguez M. Angeles Ríos Granja C. César Pérez García Jose M. Gonzalo Orden Maria J. Cano Rábano Inmaculada Diez Prieto 《The Canadian veterinary journal. La revue veterinaire canadienne》2009,50(9):933-935
This article describes a complex and not previously reported combination of congenital cardiac defects. Echocardiography showed dilation of right and left chambers, accompanied with patent ductus arteriosus, persistence of the left cranial vena cava, atrial septal defect (ASD), subaortic stenosis, and tricuspid dysplasia. The interatrial wall was examined and the diameter of the ASD was measured by magnetic resonance imaging (MRI). 相似文献
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Raffaele S Farrer RA Cano LM Studholme DJ MacLean D Thines M Jiang RH Zody MC Kunjeti SG Donofrio NM Meyers BC Nusbaum C Kamoun S 《Science (New York, N.Y.)》2010,330(6010):1540-1543
Many plant pathogens, including those in the lineage of the Irish potato famine organism Phytophthora infestans, evolve by host jumps followed by specialization. However, how host jumps affect genome evolution remains largely unknown. To determine the patterns of sequence variation in the P. infestans lineage, we resequenced six genomes of four sister species. This revealed uneven evolutionary rates across genomes with genes in repeat-rich regions showing higher rates of structural polymorphisms and positive selection. These loci are enriched in genes induced in planta, implicating host adaptation in genome evolution. Unexpectedly, genes involved in epigenetic processes formed another class of rapidly evolving residents of the gene-sparse regions. These results demonstrate that dynamic repeat-rich genome compartments underpin accelerated gene evolution following host jumps in this pathogen lineage. 相似文献
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TS Kim SH Lee GT Gang YS Lee SU Kim DB Koo MY Shin CK Park DS Lee 《Reproduction in domestic animals》2010,45(5):e201-e206
The sperm‐mediated gene transfer method is applicable to transgenesis in many species that use spermatozoa for reproduction recently, which has been shown various results. In the current study, we show that transgenic porcine embryos can be efficiently produced by employing a simple transfection method that uses magnetic nanoparticles (MNPs). The complexes formed between plasmid DNA and MNPs were bounded on ejaculated boar spermatozoa at a higher efficiency compared to methods using DNA alone or lipofection. Using confocal microscopy, rhodamine fluorophore‐labelled MNPs were detected on external surfaces of the spermatozoa membrane, which were bounded on zona pellucida of in vitro maturated oocyte during in vitro fertilization. Electron microscopy revealed that clusters of MNPs were detected in inside of plasma membrane and nucleus of the spermatozoa head. Additionally, we found that magnetofected boar spermatozoa could be fertilized with oocytes in vitro and that the resulting gene of green fluorescent protein was detected in fertilized eggs by genomic PCR analysis. Taken together, these results suggest that MNPs can be used to efficiently introduce a transgene into embryo via spermatozoa. 相似文献
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Background
This study describes the 24-h changes in plasma prolactin levels, and dopamine (DA), serotonin (5HT), gamma-aminobutyric acid (GABA) and taurine concentration in median eminence and adenohypophysis of newborn male rabbits. 相似文献38.
Pilar?Cano Vanessa?Jiménez Maria?P?álvarez Mario?Alvari?o Daniel?P?Cardinali Ana?I?EsquifinoEmail author 《Journal of circadian rhythms》2005,3(1):9
Background
This work describes the effect of a 48-h litter separation on 24-h patterns of plasma prolactin, FSH and LH concentration in female lactating rabbits kept under a 16:8 light-dark photoperiod (lights on at 0800 h). 相似文献39.
Anunciación Lafuente Teresa Cabaleiro Pilar Cano Ana I Esquifino 《Journal of circadian rhythms》2006,4(1):3-9
Background
This work addresses the issue of whether methoxychlor (MTX) exposure may modify the ultradian secretion of prolactin through changes in the synthesis of nitric oxide (NO) induced by Nω-nitro-L-arginine methyl ester (L-NAME) in the hypothalamic-pituitary axis. Associated changes in dopamine (DA) content in the anterior (AH), mediobasal (MBH) and posterior hypothalamus (PH) and median eminence (ME) were evaluated. 相似文献40.
A.M. Galisteo DMV PhD M.R. Cano DMV F. Miro DMV PhD J. Vivo DMV PhD J.L. Morales DMV PhD E. Agüera DMV PhD 《Journal of Equine Veterinary Science》1996,16(2):73-77
Angular parameters from both front and hind limb joints of 17 Andalusian purebred stallions at walk (velocity, 1.68±0.14 m/s; stride length, 1.84±0.14 m; stride frequency, 0.91±0.07 strides/s and stride duration, 1.09±0.06 s) were recorded using normal computer-aided videography. Neither intraindividual (six strides) or interindividual variation coefficients (%) were higher than 10% for the basic maximum or minimum joint angle stride parameters. Only some parameters for the shoulder joint were high (arm=24.91%). These parameters may be useful for comparison with those from other horses under different conditions (health, training, age, etc.). The instant of maximal flexion during stride is also presented, with stride beginning in the mid-stance position of the right forelimb; variation coefficients were around 10–15% for all joints except the shoulder, which showed highly irregular patterns for both intraindividual (50.56%) and interindividual (33.10%) variation. In conclusion, normal computer-aided videography systems can be useful for the analysis of certain stride parameters in slower gaits, such as walking. 相似文献