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Registros recuperados: 27
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A- and B-modes echobiometry in cataractous and noncataractous eyes of English Cocker Spaniel dogs Arq. Bras. Med. Vet. Zootec.
Silva,M.L.; Martins,B.C.; Ribeiro,A.P.; Souza,A.L. Groszewicz de; Laus,J.L..
A- and B-modes ultrasonographic changes in the thickness of various structures of the eyeball in male and female English Cocker Spaniel dogs with and without nondiabetic cataracts were evaluated. Sixteen dogs with cataracts (32 eyes) and seven normal dogs (14 eyes) older than eight years were selected. A- and B-modes ultrasonography was performed with a 10MHz transducer. Data was statistically evaluated by one way ANOVA. Mean and standard deviations of various ocular structures for dogs with and without cataracts were, respectively, anterior chamber: 3.041±0.828mm, 3.373±1.040mm; lens: 6.817±1.117mm, 7.062±0.477mm; vitreous: 10.056±0.754mm, 9.523±0.705mm; and axial length: 19.909±1.103mm, 19.958±1.050mm. Ocular measurements between right and left eyes,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Ultrasonography; Cataract.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000500009
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A new surgical technique to treat corneal perforations using amniotic membrane and surgical adhesive Arq. Bras. Med. Vet. Zootec.
Pontes,K.C.S.; Borges,A.P.B.; Eleotério,R.B.; Frazão,A.C.N.; Machado,D.P.D.; Reis,E.C.C.; Sepúlveda,R.V.; Duarte,T.S.; Laus,J.L..
The objectives of this study were to compare surgical techniques and the effects of using n-butyl 2-cyanoacrylate and bovine amniotic membrane to repair perforated lesions in corneas. Penetrating keratoplasty was performed in sixty New Zealand White rabbits under general anesthesia. Group 1 (G1) was treated with n-butyl 2-cyanoacrylate, group 2 (G2) received a fragment of amniotic membrane through the anterior chamber and application of n-butyl 2-cyanoacrylate over the lesion, group 3 (G3) was treated with the same technique as G2 with the addition of an amniotic membrane bandage covering the cornea and sutured in the limbus region, and group 4 (G4) was treated with an amniotic membrane sutured to the lesion and an amniotic membrane bandage sutured in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rabbits; Cornea; Cyanoacrylate; Glycerin; Ophthalmic surgery.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000300655
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Acoustic radiation force impulse elastography of the eyes of brachycephalic dogs Arq. Bras. Med. Vet. Zootec.
Abreu,T.G.M.; Feliciano,M.A.R.; Renzo,R.; Kobashigawa,K.K.; Chacaltana,F.D.Y.C.; Crivelaro,R.M.; Silveira,C.P. B.; Cruz,N.R.N.; Aldrovani,M.; Maronezi,M.C.; Silva,P.A.; Thiesen,R.; Laus,J.L..
ABSTRACT Eyes from brachycephalic dogs were studied by acoustic radiation force impulse (ARFI) elastography to establish quantitative and qualitative reference values related to the shape and rigidity of some ocular structures. Eighty-four eyes from 42 adult brachycephalic dogs were included in this study. Animals were subjected to physical, laboratory, and ophthalmic examinations. Following confirmation of good health, the dogs were subjected to ultrasonography and ARFI elastography, emphasizing the optic nerve, ciliary body, and lens. On qualitative elastography, homogeneous characteristics were observed on the ciliary body and optic nerve. Aqueous and vitreous humors were visualized as mosaic-like images. Quantitative elastography showed the mean optic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canine; Ocular structures; Ultrasound.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000401045
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Amastigota forms resembling Leishmania sp. on corneal ulceration in a dog: case report Arq. Bras. Med. Vet. Zootec.
Brito,F.L.C.; Alves,L.C.; Maia,F.C.L.; Albuquerque,A.R.; Ortiz,J.P.D.; Laus,J.L..
One dog with visceral leishmaniasis is reported presenting cutaneous lesions, cachexia, and corneal ulceration. Parasitological and serological diagnoses were performed by exam of contents of the aspirative punction of the bone marrow and by immunofluorecence, respectively. Amastigota forms resembling Leishmania sp. were visualized by citology.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Ulceration corneal; Leishmania sp.; Ophthalmology.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000100014
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Detecção de formas amastigotas em exame parasitológico de esfregaço obtido a partir de suabe conjuntival de cães com leishmaniose visceral Arq. Bras. Med. Vet. Zootec.
Barbosa,V.T.; Silva,M.A.G.; Sousa,M.G.; Gering,A.P.; Santos,H.D.; Laus,J.L..
Leishmaniose é uma enfermidade multissistêmica cujas manifestações clínicas são extremamente variáveis. Em cães sinais clínicos oftálmicos são relativamente frequentes, ainda que outros sinais sistêmicos não sejam identificados. Atualmente, o diagnóstico da doença baseia-se em métodos parasitológicos, sorológicos e moleculares, mas, até o momento, a identificação de formas amastigotas desse parasito em esfregaços feitos a partir de suabes conjuntivais não é empregada rotineiramente. Valendo-se de cães sorologicamente positivos para leishmaniose, portadores (G1) ou não (G2) de alterações oftálmicas, este estudo avaliou a viabilidade do esfregaço a partir de suabe conjuntival como método de diagnóstico para a enfermidade. O exame suprarreferido foi positivo...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cão; Leishmania; Linfonodo; Conjuntiva.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000600009
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Double-setting alpha-tricalcium phosphate cement provided with interconection channels in rabbits after enucleation: A potential implant for the anophthalmic socket Arq. Bras. Med. Vet. Zootec.
Gomes Junior,D.C.; Oriá,A.P.; Dórea Neto,F.A.; Santos,L.A. dos; Estrela-Lima,A.; Barbosa,V.F.; Costa Neto,J.M.; Laus,J.L.; Daleck,C.R..
The purpose of this study was to evaluate the macroscopy and microstructure of a double setting alpha-tricalcium phosphate bone cement sphere provided with interconnection channels (alpha-TCP-i), as well as the integration of the implant with the rabbits' orbital tissue, through macroscopic analysis and histopathology. The external and internal surfaces of the alpha-TCP-i were evaluated macroscopically and by electron microscopy. Twelve New Zealand rabbits received 12mm implants of alpha-TCP-i following enucleation of the left eye. The clinical assessment was undertaken daily during the first 15 days, followed by fortnightly assessment until the end of the study period. For the morphological analysis, exenteration was performed in 3 animals per...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Implant; Eye; Prosthesis.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000100119
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Effects of carprofen administered by different routes to control experimental uveitis in dogs Arq. Bras. Med. Vet. Zootec.
Ribeiro,A.P.; Escobar,A.; Motheo,T.F.; Sakamoto,C.A.M.; Godoy,G.S.; Costa,M.A.N.; Laus,J.L..
Efficacy of carprofen, administered by different routes, was studied in experimental uveitis in dogs. Anterior chamber paracenteses was accomplished at two different moments (M0 and M1), with a five hour interval between them. At M0 and M1, 0.2mL of aqueous humor was collected and quantitation of total protein and prostaglandin E2 (PGE2) were determined. Four groups were formed (n=8), which received carprofen at the end of M0, by the following routes: subcutaneous (GIm), subconjunctival (GII), and topical (GIII). A fourth group that received no treatment was instituted (Control). Conjunctival histopathology of the GII animals was performed. In all groups, values of protein and PGE2 significantly enhanced at M1; however, they did not significantly change...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Uveitis; Carprofen; Total protein; Prostaglandin E2.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000200010
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Effects of ethyl-cyanoacrylate and octyl-cyanoacrylate on experimental corneal lesions in rabbits Arq. Bras. Med. Vet. Zootec.
Barbosa,V.T.; Thiesen,R; Soares,E.G.; Machado,M.R.F.; Laus,J.L..
The use of ethyl-cyanoacrylate and octyl-cyanoacrylate were clinically and histopathologically compared on the corneas of 36 rabbits after lamellar keratectomy (standardized diameter and depth). The animals were distributed into two groups, one for each type of adhesive. From each group, six subgroups were histopathologically evaluated on the 3rd, 7th, 14th, 21st, 30th, and 60th day post-operative. General (daily) and ophthalmic (days 0, 1, 3, 5, 7, 14, 21, 30, 44, and 60) evaluations clinically indicated that there were significant differences for the variables water intake, attitude, blepharitis, corneal edema, and fluorescein test. The adhesive permanence time for octyl-cyanoacrylate (17.22 days) was greater than that for ethyl-cyanoacrylate (7.66...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rabbit; Cornea; Cyanoacrylate.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000500009
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Effects of the Ottonia martiana Miq. (Piperaceae) extract on dog's ocular surface Arq. Bras. Med. Vet. Zootec.
Lisbão,C.B.S.; Corrêa,M.A; Ortiz,J.P.D; Martins,B.C.; Laus,J.L..
The anesthetics effects of aqueous extract of Ottonia martiana leaves were studied on the ocular surface of healthy beagle dogs. The dogs were divided in three groups (n=15): control group (CG), proxymetacaine group (PG) and Ottonia group (OG), which were treated with 0.9% saline, 0.5% proxymetacaine hydrochloride ophthalmic solution and O. martiana extract respectively. An oftalmic evaluation was performed before the treatments. Eye drops were instilled at time 0 (T0) and 3 minutes later (T3). Axial corneal sensitivity was evaluated by esthesiometry 5 and 10 minutes after T0. Tear production and intraocular pressure were evaluated 10 minutes after T0. Slit lamp biomicroscopy was performed 10 and 20 minutes after T0 and the eyes were stained with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Ottonia martiana; Piperaceae; Corneal sensitivity; Tear production.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000300008
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Effects of timolol maleate, levobunolol and apraclonidine on intraocular pressure, pupil size, blood pressure and heart rate in beagles Arq. Bras. Med. Vet. Zootec.
Padua,I.R.M.; Ribeiro,A.P.; Padua,P.P.M.; Guimarães,P.J.; Silva,M.L.; Piso,D.Y.T.; Martins,B.; Aldrovani,M.; Semolin,L.M.S.; Camacho,A.A.; Laus,J.L..
ABSTRACT The aim of this study was to evaluate changes in intraocular pressure (IOP), pupil size (PS), blood pressure (BP), heart rate (HR), and ECG variables (Pms wave PmV, PR interval, QRS complex, RMV wave and QT intervals) over time during the instillation of 0.5% timolol, 0.5% levobunolol and 0.5% apraclonidine in clinically normal dogs. Ten adult beagles were used. Baseline values were measured at 8a.m., 2p.m. and 8p.m., for three consecutive days. A waiting period of 10 days between the administrations of each drug was established. For 15 consecutive days, the drug being tested was instilled in one eye of each dog twice a day (7a.m. and 7p.m.). The parameters were evaluated at the aforementioned times on days 3, 6, 9, 12 and 15. Data were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Timolol maleate; Levobunolol; Apraclonidine; Intraocular pressure; Pupil size; Heart rate; Blood pressure.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000300641
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Effects of topical levobunolol or fixed combination of dorzolamide-timolol or association of dorzolamide-levobunolol on intraocular pressure, pupil size, and heart rate in healthy cats Arq. Bras. Med. Vet. Zootec.
Ribeiro,A.P.; Junior,D.P.; Champion,T.; Brunetto,M.A.; Camacho,A.A.; Laus,J.L..
The effects of topical levobunolol with the fixed combination of 2% dorzolamide-0.5% timolol and the association of 2% dorzolamide with 0.5% levobunolol on intraocular pressure (IOP), pupil size (PS), heart rate (HR), and conjunctival hyperemia in eighteen halthy cats were investigated and compared. IOP, PS, HR, and conjuntival hyperemia were daily recorded at three times (9a.m., 2p.m., and 6p.m.). Three groups were formed (n=6), and one eye of each animal was randomly selected and treated with topical levobunolol (L), or commercial combination of dorzolamide-timolol (DT), or the association of dorzolamide with levobunolol (DL). The first day (0) consisted of recording of baseline values. On the next four consecutive days, drugs were instilled at 8a.m. and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cat; Levobunolol; Beta-blockers; Intraocular pressure; Pupil size; Heart rate.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000500002
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Electroretinography and immunohistochemistry of retina in rabbits treated with sildenafil citrate Arq. Bras. Med. Vet. Zootec.
Amaral,A.V.C.; Silva,G.A.; Costa,A.P.A.; Oliveira,K.S.; Jordão,P.; Ribeiro,A.P.; Renzo,R.; Laus,J.L..
Sildenafil citrate is a type-5 phosphodiesterase inhibitor (PDE-5), able to inhibit type-6 phosphodiesterase (PDE-6) as well, providing clinical benefits and paraeffects, some of them potentially related to the retina. The effects of the sildenafil on the retrobulbar and retinal circulation were studied in 27 adult male rabbits of the White New Zealand breed. The electric activity of the retina was evaluated before and at the end of the treatments, and immunohistochemistry studies were conducted. An amplitude increase of the b wave was found in the mixed response of cones and rods after 7 days of treatment with sildenafil citrate. However, in the other evaluations and periods, the values did not differ from the basal ones. Through immunohistochemistry, no...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rabbit; Sildenafil citrate; Electroretinography; Immunohistochemistry.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000601589
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Electroretinography in eight species of neotropical deer Arq. Bras. Med. Vet. Zootec.
Crivelaro,R.M.; Thiesen,R.; Aldrovani,M.; Lima,T.B.; Ortêncio,K.P.; Padua,I.R.M.; Duarte,J.M.B.; Laus,J.L..
ABSTRACT The aim of this study was to establish normal baseline ERG values of 23 anesthetized deer belonging to 8 neotropical species (Mazama americana, Mazama nemorivaga, Mazama gouazoubira, Mazama nana, Mazama bororo, Ozotocerus bezoarticus, Odocoileus virginianus and Blastocerus dichotomus). Only right eyes were studied. Chemical restraint was performed using xylazine associated with ketamine, IM, for M. americana, M. gouazoubira, M. nemorivaga, M. nana, M. bororo, O. bezoarticus and O. virginianus. A combination of tiletamine/zolazepam diluted in xylazine 2% was used for B. dichotomus individuals. After 20min of dark adaptation, electroretinograms were obtained using a handheld electroretinography (ERG) machine using the QuickRetCheck Protocol at three...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cervidae; Habitat; Retina; Wild animal; ERG.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000501505
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Excision of sclerocorneal limbus in dogs and resulting clinical events: study of an experimental model Arq. Bras. Med. Vet. Zootec.
Brunelli,A.T.J.; Vicenti,F.A.M.; Oriá,A.; Campos,C.F.; Doria Neto,F.A.; Laus,J.L..
The consequences of complete removal of the sclerocorneal limbus epithelium were evaluated, as well as the model for such, in which n-heptanol and superficial keratectomy were used. The association of n-heptanol and keratectomy allowed a complete excision of stem cells. Moreover, the destruction of these cells led to significant tectonic alterations that could be employed as a feasible model for clinical experimentation of corneal transplantation.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Stem cell; Cornea.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000100009
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Extracapsular cataract extraction in horses by nuclear fragmentation using adapted instruments Arq. Bras. Med. Vet. Zootec.
Souza,A.L.G.; Wouk,A.F.P.F.; Deconto,I.; Perotta,J.H.; Laus,J.L..
It was studied the nuclear fragmentation technique for lens extraction in six adult horses using adapted surgical instruments. Postoperative assessment revealed a reduction of intraocular pressure in all animals during the first postoperative days, as well as varying degrees of photophobia, blepharospasm, corneal edema, and iridocyclitis. Fibrin formation mainly located in the axial portion of the pupilla was noted in most cases, affecting or impairing vision.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Horse; Cataract; Surgery.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000600011
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Generalized systemic cryptococcosis in a dog after immunosuppressive corticotherapy Arq. Bras. Med. Vet. Zootec.
Honsho,C.S.; Mine,S.Y.; Oriá,A.P.; Benato,N.; Camacho,A.A.; Alessi,A.C.; Laus,J.L..
A male Boxer dog aged 2 years and 11 months was referred to the veterinary hospital with a history of a gastrointestinal disorder of two months duration, with apathy, hyporexia, progressive weight loss and visual deficit. Ataxia and vocalization were observed during hospitalization. The animal had been treated previously with antibiotics and immunosuppressive doses of corticoids to control chronic inflammatory bowel disease. The dog died five days later. Gross and microscopic observations indicated systemic cryptococcosis. The alimentary tract, eyes, brain, kidneys, pancreas and lymph nodes were involved.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Generalized criptococcosis; Criptococcus neoformans; Corticotherapy.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000200005
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Hemangiosarcoma of the nictitant membrane in a Brazilian Fila dog: case report Arq. Bras. Med. Vet. Zootec.
Laus,J.L.; Ortiz,J.P.D.; Brito,F.L.C.; Lisbão,C.B.S.; Silva Júnior,V.A.; Maia,F.C.L..
It was reported a case of a 9-year-old Brazilian Fila male dog that had been affected by a tissular formation of the nictitant membrane of the right eye with four months of evolution. Conjunctival hyperemia and edema, serosanguinolent secretion, and a conjunctival neoformation at the nictitant membrane were observed. Surgical exeresis of the neoformation was performed. Endothelial cells slightly differentiated and pleomorphic, with an intense vascular neoformation compatible to nictitant membrane hemangiosarcoma, were found at the histological exam.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Hemangiosarcoma; Nictitant membrane.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000600016
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Intraocular pressure and its correlation with blood gas parameters in crested caracaras (Caracara plancus) anesthetized with isoflurane and sevoflurane Arq. Bras. Med. Vet. Zootec.
Ribeiro,A.P.; Vitaliano,S.N.; Thiesen,R.; Escobar,A.; Duque Ortiz,J.P.; Belmonte,E.A.; Werther,K.; Laus,J.L..
The intraocular pressure (IOP) and its correlations with arterial carbon dioxide partial pressure (PaCO2) and arterial pH were studied in five crested caracaras (Caracara plancus) anesthetized with isoflurane (ISO) and sevoflurane (SEV). Baseline IOP values were measured in both eyes (M0). Brachial artery was previously catheterized to obtain blood gas and cardiorespiratory analysis. Anesthesia was induced with 5% ISO and maintained with 2.5% for 40 minutes. IOP measurements and blood samples were evaluated in different moments until the end of the procedure. After recovering, a second anesthesia was induced with 6% SEV and maintained with 3.5%. Parameters were evaluated at the same time points of the previous procedure. IOP reduced significantly (P=...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crested caracara; Caracara plancus; Isoflurane; Sevoflurane; Intraocular pressure; Blood gas.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000600023
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Microalterations in the third eyelid gland of dogs with keratoconjunctivits sicca secondary to distemper Arq. Bras. Med. Vet. Zootec.
Brito,F.L.C.; Silva Júnior,V.A.; Maia,F.C.L.; Pereira Junior,J.R.; Laus,J.L..
Keratoconjunctivitis sicca is characterized by qualitative or quantitative abnormalities in the aqueous component of the tear film and is frequent in dogs with distemper. Twenty-eight third eyelid glands of end-stage dogs that died from distemper were analyzed by light microscopy. Keratoconjunctivitis sicca was diagnosed based on ophthalmic findings regarding alterations in the ocular surface and by the Schirmer tear test. The excised glands were fixed in 10% buffered formalin and processed for embedding in paraffin. The blocks were cut into 4µm sections and the sections were stained with hematoxylin-eosin and Masson's trichrome. Analysis revealed tubuloacinar gland atrophy, thickening of connective tissue, and mild to intense inflammatory exudation mainly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Distemper; Keratoconjunctivitis sicca; Third eyelid gland.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000200011
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Microbiological profile of donor corneas stored for tectonic transplantation purposes in rabbits Arq. Bras. Med. Vet. Zootec.
Kobashigawa,K.K.; Martins,B.C.; Massoli,M.C.B.; Ishizawa,T.H.; Schocken-Iturrino,R.P.; Brooks,D.E.; Laus,J.L..
This study aimed to evaluate the microbiota of donor rabbit corneas stored for tectonic transplantation purposes. Swabs from both corneas of 20 rabbits were carefully collected and submitted to microorganism isolation and identification. After this first swab collection, rabbits were euthanized for reasons other than this project and the eyes were enucleated. The corneas were collected and stored to compose the cornea tissue bank. Corneas were stored in a 0.3% tobramycin solution at -20ºC. After 30 days, the corneas were thawed at room temperature and removed from the antibiotic. New swabs were obtained from the corneas and submitted to microorganism isolation and identification. Gram positive organisms were predominant in the rabbit corneal flora before...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rabbit; Corneal bank; Microbiota; Corneal transplant.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000100010
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