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31.
Brandon Oberlin Christina Best Liana Matson Angela Henderson Nicholas Grahame 《Behavior genetics》2011,41(2):288-302
Selectively breeding lines of mice and rats to differ in alcohol intake has proven useful for defining which traits correlate
with high alcohol drinking behavior, as well as for creating animal models of alcoholism. This study reports the derivation
of two novel sets of selected lines, High Alcohol Preferring (HAP) and Low Alcohol Preferring (LAP) replicate 2 and 3 lines.
Mice were mass-selected using the same procedure as in the replicate 1 lines: using HS/Ibg as a progenitor, mice were selected
for differences in 2-bottle choice intake of 10% alcohol during a 4-week testing period. In addition, another high-drinking
line, the crossed HAP (cHAP) line was selectively bred from a progenitors that were a cross of replicate 1 (S27) × replicate
2 (S21) HAP lines. All lines were characterized for saccharin intake. Overall, the response to selection of the HAP and LAP
replicate 2 and 3 lines was quite similar. As anticipated, following selection, the cHAP line drank more than either parent
HAP line (consuming 26.0 g/kg per day of alcohol by S11), suggesting that this method of crossing replicate lines and selecting
from that cross captures more alleles than any single selected line, as well as producing a line with exceptionally high voluntary
alcohol intake. As expected, saccharin consumption was highly associated with alcohol consumption; data from 7 lines (HAP
1, 2, and 3, LAP 1, 2, and 3, and cHAP) indicated a genetic correlation between 10% alcohol and 0.32% saccharin intake of
0.91. Overall, these findings show the practicality of developing replicate lines divergent in alcohol preference, and validate
a novel procedure for generating very high-drinking mouse populations. 相似文献
32.
Restoration of grip function was achieved through transfer of the recovered biceps tendon to the long digital flexors using a fascia lata graft in seven patients with complete brachial plexus palsy. Initial nerve repair was followed by biceps transfer with stabilising wrist and hand fusions. The biceps recovered to Medical Research Council (MRC) grade 4 in all cases. Patients were reviewed at a mean time of 26.7 (range 7–63) months after biceps transfer. After transfer, the total active movement of the digits averaged 55 (range 30–90)°. The strongest measurable grip strength was 6 kg. Patient satisfaction was high. The excellent excursion of the elbow provides a good basis for a transfer to power grip function, enabling a greater total active movement of the fingers to be achieved. We recommend this method as a useful adjunct to the treatment of the complete brachial plexus palsy. 相似文献
33.
Odile Oberlin 《Journal of clinical oncology》2002,20(14):3051-3053
34.
O. Oberlin J. Lumbroso P. H. Terrier O. Hartmann J. Lemerle C. Parmentier 《Pediatric blood & cancer》1994,23(2):130-132
The role of radiolabeled meta-iodobenzyl-guanidine (mlBC) is established in the detection and the staging of neuroblastoma. We designed a study of mlBG scanning for patients with Ewing's sarcoma, a tumor for which a neuroectodermic origin has been proposed. We explored 15 children with round cell sarcoma of bone by a whole body scan carried out 24 hours after injection of 123-1 mlBG. No patient demonstrated significant uptake either at the site of the primary or at the sites of metastases. These results suggest that despite its neural histogenesis Ewing's sarcoma is a member of the nonneuroblastoma neural crest tumors, which does not produce or store adrenergic metabolites. © 1994 Wiley-Liss, Inc. 相似文献
35.
Frequent detection of the parvoviruses, PARV4 and PARV5, in plasma from blood donors and symptomatic individuals 总被引:3,自引:0,他引:3
BACKGROUND: Plasma pools used in the manufacture of blood- and plasma-derived medicinal products are frequently contaminated with parvovirus B19. The presence of the novel human parvovirus PARV4 and a related variant PARV5 in manufacturing plasma pools was recently demonstrated. Another recently identified parvovirus, human bocavirus (HBoV), has been identified in respiratory samples from children with lower respiratory tract disease. STUDY DESIGN AND METHODS: Recent and archived manufacturing plasma pools, as well as plasma from healthy blood donors (individual donations; pools of 16 donations) and febrile patients, were examined for the presence of PARV4 and PARV5 with conventional and TaqMan polymerase chain reaction assays. In addition, highly sensitive assays were used to examine the presence of HBoV DNA in manufacturing pools. RESULTS: Of 351 recent manufacturing plasma pool samples, 14 (4%) tested positive for the presence of PARV4 and PARV5. This frequency was elevated in the archived pools. Viral loads ranged from less than 100 up to 4 million copies per mL plasma, with some pools containing a mixture of both viruses. In individual plasma samples from healthy blood donors and febrile patients, the frequencies of detection were 2 and 6 percent, respectively. No HBoV sequences were identified in manufacturing plasma pools (n = 167). CONCLUSION: PARV4 and PARV5 are readily detected in manufacturing plasma pools, test pools (constructed from 16 donations), and individual donations derived from healthy blood donors. The prevalence of these viruses was increased in plasma samples from febrile patients. Despite the use of highly sensitive assays for HBoV, it was not possible to identify manufacturing plasma pools containing HBoV sequences. 相似文献
36.
Expression of human ERG K+ channels in the mouse heart exerts anti-arrhythmic activity 总被引:3,自引:0,他引:3
Royer A Demolombe S El Harchi A Le Quang K Piron J Toumaniantz G Mazurais D Bellocq C Lande G Terrenoire C Motoike HK Chevallier JC Loussouarn G Clancy CE Escande D Charpentier F 《Cardiovascular research》2005,65(1):128-137
OBJECTIVE: The K(+) channel encoded by the human ether-a-go-go-related gene (HERG) is crucial for repolarization in the human heart. In order to investigate the impact of HERG current (I(Kr)) on the incidence of cardiac arrhythmias, we generated a transgenic mouse expressing HERG specifically in the heart. METHODS AND RESULTS: ECG recordings at baseline showed no obvious difference between transgenic and wild-type (WT) mice with the exception of the T wave, which was more negative in transgenic mice than in WT mice. E4031 (20 mg/kg) prolonged the QTc interval and flattened the T wave in transgenic mice, but not in WT mice. Injection of BaCl(2) (25 mg/kg) induced short runs of ventricular tachycardia in 9/10 WT mice, but not in transgenic animals. Atrial pacing reproducibly induced atrial tachyarrhythmias in 11/15 WT mice. In contrast, atrial arrhythmia was inducible in only 2/11 transgenic mice. When pretreated with dofetilide (10 mg/kg), transgenic mice were as sensitive to experimental arrhythmias as WT mice. Microelectrode studies showed that atrial action potentials have a steeper slope of duration-rate adaptation in WT than in transgenic mice. Transgenic mice were also characterized by a post-repolarization refractoriness, which could result from the substantial amount of I(Kr) subsisting after repolarization as assessed with action potential-clamp experiments and simulations with a model of the transgenic mouse action potential. CONCLUSION: HERG expression in the mouse heart can protect against experimental induction of arrhythmias. This is the first report of such a protective effect of HERG in vivo. 相似文献
37.
Eric Van Belle Robert Gil Volker Klauss Mohammed Balghith Martijn Meuwissen Jérôme Clerc Bernhard Witzenbichler Miha Cercek Marios Vlachojannis Irene Lang Philippe Commeau Flavien Vincent Luca Testa Wojciech Wasek Nicolas Debry Stephan Kische Gabriele Gabrielli Gennaro Sardella 《JACC: Cardiovascular Interventions》2018,11(4):354-365
Objectives
This study sought to prospectively assess the impact of routine invasive physiology at the time of angiography on reclassification of therapeutic management of multivessel disease (MVD) patients, and to assess how implementation of instantaneous wave-free ratio (iFR) alters the process.Background
Routine invasive physiology in intermediate coronary lesions at the time of diagnostic angiography, primarily in patients with single-vessel disease and using fractional flow reserve (FFR), reclassifies coronary revascularization management in 26% to 44% of patients. The role of invasive physiology in patients with MVD is unclear.Methods
In 18 centers, 484 patients undergoing diagnostic angiography disclosing MVD with lesions >40% by visual assessment were included. Investigators were asked to prospectively define their initial management strategy based on angiography and clinical information. Invasive physiology (FFR or iFR driven) was then performed and final strategy defined. Initial and final vessel, patient, procedural, and overall management were described. Reclassification was defined as the difference between initial and final strategy.Results
The majority of patients were clinically stable (82.2%). Two- and 3-vessel disease was present in 73.3% and 26.7% of patients, respectively. Lesions investigated were “intermediate” with median percent stenosis, median FFR, and median iFR at 60% (interquartile range [IQR]: 50% to 70%), 0.84 (IQR: 0.78 to 0.90), and 0.92 (IQR: 0.85 to 0.96), respectively. Vessel management was reclassified by physiology in 30.0% (249 of 828) of vessels. Patient and overall management were reclassified in 26.9% (130 of 484) and 45.7% (211 of 484) of patients, respectively. Reclassification rates were high irrespective of initial management (optimal medical therapy, percutaneous coronary intervention, or coronary artery bypass grafting), and performance and results of pre-procedural noninvasive tests. Reclassification of overall management in particular increased with the number of vessels investigated (1 vessel: 37.3%; 2 vessels: 45.0%; 3 vessels: 66.7%; p = 0.002). Incorporating iFR in the decision process was associated with investigation of more vessels (p = 0.04) and higher reclassification (p = 0.0001).Conclusions
In patients with MVD and intermediate coronary lesions, invasive physiology at time of angiography reclassifies revascularization strategy in a large proportion of cases (26.9%) and investigation of more vessels is associated with higher reclassification rates. 相似文献38.
The authors present 5 observations of choledocoduodenal fistula complicating chronic duodenal ulcer disease. Four cases were observed in Central Africa, the other in France. After a study of the frequency, and especially of the higher incidence in Africa, the authors review the problems associated with the pathology, clinical and diagnostic aspects of this complication. Moreover, they evoke the essential problems of management, as based on their experience and a review of the literature: medical vs. surgical treatment, should and how they treat the biliary lesions. Their individual results are criticized. A policy for the management of this complication is considered. 相似文献
39.
The posterior interosseous nerve and the radial tunnel syndrome: an anatomical study 总被引:3,自引:0,他引:3
A. E. Portilla Molina C. Bour C. Oberlin A. Nzeusseu R. Vanwijck 《International orthopaedics》1998,22(2):102-106
Summary. Twenty anatomical specimens were carefully studied in order to establish a possible connection between the posterior interosseous
nerve and the radial tunnel syndrome. Our results show that the posterior interosseous nerve distal to the supinator muscle
may be compressed by various structures. These include the distal border of the supinator muscle, the ramifications of the
anterior and posterior interosseous vessels, and the septum between the extensor carpi ulnaris and the extensor digitorum
minimi. The posterior interosseous nerve is also stressed during passive supination (elongation and rotation), and during
passive pronation (compression). This suggests that the interosseous nerve distal to the supinator muscle should be explored
in radial tunnel compression syndromes.
Accepted: 1 December 1996 相似文献
Résumé. Les auteurs ont étudié 20 spécimens anatomiques pour rechercher les liens entre le nerf interosseux postérieur et le syndrome du tunnel radial. L’étude montre que le nerf interosseux postérieur peut être comprimé par diverses structures au-delà du muscle court supinateur: le bord inférieur du court supinateur, les ramifications des vaisseaux interosseux antérieurs et postérieurs et le septum existant entre le cubital postérieur et l’extenseur propre du 5èmee doigt. Le nerf interosseux postérieur est de plus soumi à des strictions lors de la supination passive (élongation et rotation) et lors de la pronation passive (compression). Ceci suggère que le nerf interosseux postérieur doit être exploré dans sa portion distale au-delà du court supinateur lors du traitement des syndromes du tunnel radial.
Accepted: 1 December 1996 相似文献
40.