987 resultados para RABBITS


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The Ithaka US Faculty Survey 2012 (http://bit.ly/10NnQw9) is out, and by the time you read my blurb, it will have cobwebs on it, and the 2013 will be well on the way. So, why write about it at all? It’s always important to find out what people think of you, in this case libraries and their main clientele, faculty, even if what you find out may have to have a dozen qualifications surrounding it. Libraries and librarians are either on the cusp of something new and exciting, or on the edge of the abyss, soon to fall into oblivion, so finding out what people think should be important to us. So why not take a peek?

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Hemograms and acute-phase proteins in adult male New Zealand White rabbits that had been experimentally infected orally with sporulated oocysts of Eimeria stiedai were evaluated over a 28-day period. Fifty animals were used, divided into two groups: group A infected with 1 x 10(4) sporulated oocysts of E. stiedai and group B inoculated with distilled water. on the seventh day after infection, the infected animals presented anemia and leukocytosis with neutrophilia and monocytosis. Protein fractionation by means of electrophoresis identified 19 acute-phase proteins with molecular weights ranging from 24 to 238 kD. Ceruloplasmin, transferrin and haptoglobin showed high levels on the seventh day after infection, with gradual increases in their concentrations until the end of the experimental period. Thus, from the data of the present study, E. stiedai is considered to be a pyogenic etiological agent for which the infection level can be monitored through the leukocyte count and serum concentrations of ceruloplasmin, transferrin and haptoglobin, and these can be recommended as complementary tests.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The aim of this study was to evaluate histologically the action of chondroitin sulphate in osteoarthritis experimentally induced by continuous immobilization. Fourteen young female Norfolk rabbits aged 2.5-3 months at the beginning of the experiment were divided into two equitable groups submitted to immobilization of the right knee for a period of 12 weeks. The treated group received 1.0 ml/animal/s.c. of 12% chondroitin sulphate, once a week for 12 weeks, and the untreated group did not receive any treatment. Two additional animals were not submitted to knee immobilization (sham group). Microscopical examination of knee preparations stained with haematoxylin-eosin and Masson trichrome showed lesions of both joints in treated and untreated groups, with no significant difference between the scores obtained for the right and left knees. Examination of preparations stained with picrosirius red showed collagen fibre alignment and misalignment in the right and left knees of the animals of all groups, but statistic analysis could not be performed. It was not possible to differentiate the proteoglycan concentration between limbs or groups (treated and untreated) by safrtanin O or toluidine blue staining. It was possible to conclude that the chondroitin sulphate was not able to reduce the histological changes induced by this osteoarthritis experimental model.

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Aim. Autologous vein (AV) is sometimes not suitable or present for a vascular restoration. Homologous vein preserved in glutaraldehyde may be an alternative to AV, but little is yet known about this graft and its healing process after implantation in arteries. The purpose of this study was to compare the initial healing process of glutaraldehyde-tanned homologous venous grafts (group 1) with fresh autologous venous grafts (group 2), at 4 or 15 days.Methods. Forty Norfolk rabbits were allocated in 2 groups of 20 animals each. The grafts was interposed in the infra-renal aorta of the rabbit. Anastomotic tensile strength (TS), hydroxyproline (HP) determination, and histology (HA) were performed.Results. TS increased in both groups, from the 4th to 15th day, (p < 0.01) in both proximal (G1: from 364.5 &PLUSMN; 98.3 g to 491.8 &PLUSMN; 107.3 g; G2: from 366.26 &PLUSMN; 85.15 g to 518.46 &PLUSMN; 82.79 g) and distal anastomosis (GI: from 363.53 &PLUSMN; 96.26 g to 507.32 &PLUSMN; 91.01 g; G2: from 352.30 &PLUSMN; 102.41 g to 528.67 &PLUSMN; 48.58 g), with no difference between the groups. HP did not change (p > 0.10) in this same period and was similar in both groups, in the proximal (GI: from 677.99 +/- 153.98 mug/100 mg to 914.92 +/- 459.83 mug/100 mg; G2: from 668.65 +/- 170.28 mug/100 mg to 669.46 +/- 319.80 mug/100 mg) as well as in the distal anastomosis (G1:from 740.07 +/- 213.53 mug/100 mg to 923.52 +/- 270.57 mug/100 mg; G2: from 737.66 +/- 266.76 mug/100 mg to 707.68 +/- 171.25 mug/100 mg). Initial inflammatory and reparative features of the anastomosis were similar in both groups.Conclusion. We can conclude that the healing process of the glutaraldehyde-tanned homologous vein graft was similar to that of the fresh autologous venous graft.