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Registros recuperados: 44
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A possible relationship between gluconeogenesis and glycogen metabolism in rabbits during myocardial ischemia Anais da ABC (AABC)
AGUIAR,RAQUEL R. DE; VALE,DANIELA F.; SILVA,RENATO M. DA; MUNIZ,YOLANDA P.; ANTUNES,FERNANDA; LOGULLO,CARLOS; OLIVEIRA,ANDRÉ L.A.; ALMEIDA,ADRIANA J. DE.
ABSTRACT Ischemia is responsible for many metabolic abnormalities in the heart, causing changes in organ function. One of modifications occurring in the ischemic cell is changing from aerobic to anaerobic metabolism. This change causes the predominance of the use of carbohydrates as an energy substrate instead of lipids. In this case, the glycogen is essential to the maintenance of heart energy intake, being an important reserve to resist the stress caused by hypoxia, using glycolysis and lactic acid fermentation. In order to study the glucose anaerobic pathways utilization and understand the metabolic adaptations, New Zealand white rabbits were subjected to ischemia caused by Inflow occlusion technique. The animals were monitored during surgery by pH and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gene expression; Glycogen; Ischemia; Myocardium; Rabbit.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401683
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Analysis of consumer habits and attitudes on the Hungarian beef and rabbit market AgEcon
Szakaly, Zoltan; Szigeti, Orsolya; Szente, Viktoria.
As a consortium partner the authors took part in a research project aiming at the development of high added value, healthy and environment friendly animal products. From among the products developed by the consortium (rabbit meat, omega3-fatty acid enriched beef, goose liver from non forcible feeding, selenium-, vitamin-E and natural color enriched eggs) the present study describes the results concerning beef and rabbit meat. The given products are chosen because they are produced in and exported from Hungary in considerable quantities and their competitiveness can be further improved. In order to able to map the consumer preferences a 300 count nationwide, representative, questionnaire based survey was designed and performed. Actual products were tested...
Tipo: Journal Article Palavras-chave: Beef; Rabbit; Consumer preferences and attitudes; Nutritional benefits; Consumption frequency; Agribusiness; Agricultural and Food Policy; Food Security and Poverty; Marketing.
Ano: 2009 URL: http://purl.umn.edu/49229
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Angiotensin and baroreflex control of the circulation BJMBR
Head,G.A.; Saigusa,T.; Mayorov,D.N..
There is a close association between the location of angiotensin (Ang) receptors and many important brain nuclei involved in the regulation of the cardiovascular system. The present review encompasses the physiological role of Ang II in the brainstem, particularly in relation to its influence on baroreflex control of the heart and kidney. Activation of AT1 receptors in the brainstem by fourth ventricle (4V) administration to conscious rabbits or local administration of Ang II into the rostral ventrolateral medulla (RVLM) of anesthetized rabbits acutely increases renal sympathetic nerve activity (RSNA) and RSNA baroreflex responses. Administration of the Ang antagonist Sarile into the RVLM of anesthetized rabbits blocked the effects of Ang II on the RSNA...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Angiotensin II; AT1 receptors; Losartan; Renal sympathetic activity; Baroreflex; Rostral ventrolateral medulla; Blood pressure; Rabbit.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000900005
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Antagonism of morphine-induced central respiratory depression by donepezil in the anesthetized rabbit Biol. Res.
TSUJITA,MIKI; SAKURABA,SHIGEKI; KURIBAYASHI,JUNYA; HOSOKAWA,YUKI; HATORI,EIKI; OKADA,YASUMASA; KASHIWAGI,MASANORI; TAKEDA,JUNZO; KUWANA,SHUN-ICHI.
Morphine is often used in cancer pain and postoperative analgesic management but induces respiratory depression. Therefore, there is an ongoing search for drug candidates that can antagonize morphine-induced respiratory depression but have no effect on morphine-induced analgesia. Acetylcholine is an excitatory neurotransmitter in central respiratory control and physostigmine antagonizes morphine-induced respiratory depression. However, physostigmine has not been applied in clinical practice because it has a short action time, among other characteristics. We therefore asked whether donepezil (a long-acting acetylcholinesterase inhibitor used in the treatment of Alzheimer's disease) can antagonize morphine-induced respiratory depression. Using the...
Tipo: Journal article Palavras-chave: Morphine; Donepezil; Rabbit; Respiratory depression; Alzheimer's disease; Cholinesterase inhibitor.
Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602007000400008
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Bone regeneration in mandible defect with autograft bone and cell suspension from bone marrow in rabbits Arq. Bras. Med. Vet. Zootec.
Gomes,C.; Paz,A.H.; Bonilla,A.T.; Corrêa,A.; Cavalcante,R.L.; Veiga,D.; Colomé,L.M.; Foerstnow,L.P.; Contesini,E.A.; Cirne-Lima,E.O..
The objective of this study was to investigate the bone regeneration of a "gold standard" (autograft) from iliac crest associated with cellular therapy in rabbits. A bone defect was created with 10x5x5mm in 28 rabbit mandibles. The control group animals (n=14) were repaired with autograft of iliac crest and the experimental group animals (n=14) received iliac crest autograft in association with mononuclear cells from the bone marrow of the femur. Weekly radiographs were taken of the surgery region and histological analyses was performed in seven animals in each group at 15 days and in seven animals of each group at 30 days after the surgery. A gradual increase of bone density was observed and the experimental animals presented the bone bridge in 85.7%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rabbit; Mandibular reconstruction; Bone regeneration; Graft.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000400007
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Bothrops alternatus snake venom induces apoptosis of skeletal muscle cells in a rabbit model Arq. Bras. Med. Vet. Zootec.
Santos,W.G.; Silveira,T.L.; Fiúza,A.T.L.; Botelho,A.F.M.; Gonçalves,I.N.N.; Ferreira,E.; Soto-Blanco,B.; Melo,M.M..
RESUMO Este estudo objetiva reportar a ocorrência de apoptose in vivo induzida pelo veneno da serpente Bothrops alternatus em células musculares esqueléticas. Cinco coelhos machos, adultos, receberam 150μg/kg de veneno no músculo vasto lateral, enquanto outros cinco animais receberam 0,1% de BSA diluído em PBS no mesmo local. Após 12 horas, os animais foram eutanasiados, e amostras do local de inoculação foram coletadas para análise histopatológica. Foram evidenciadas necrose e hemorragia nas células musculares. Além disso, a análise imuno-histoquímica para identificação de caspase-3 ativada revelou marcações granulares e agregadas no citoplasma das células musculares, compatíveis com o processo de apoptose. Este é o primeiro relato que confirma o veneno...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Snake venom; Botropic venom; Apoptosis; Toxicology; Rabbit.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000100349
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Cardiac evaluation after experimental intoxication by Amorimia rigida (Malpighiaceae) extracts in rabbits J. Venom. Anim. Toxins incl. Trop. Dis.
Borboleta,LR; Silva,EF; Oliveira,MS; Michel,AFRM; Ferraz,VP; Leite,RC; Melo,MM.
Clinical and laboratory changes were evaluated in rabbits after intoxication by Amorimia rigida, a plant that causes sudden death. Nine New Zealand male rabbits, averaging 3.54 kg, were categorized into three groups (n = 3) and received, for eight consecutive days, the equivalent of 30 g/kg dry matter of A. rigida water-soluble (SG) and water-insoluble (IG) extracts via nasoesophageal route. The control group received water. There were no alterations in creatine kinase enzyme (CK), CK myocardial fraction (CKMB) or troponine I (cTnI). None of the animals had clinical or electrocardiographic (conventional and Holter) alterations. There were progressive decreases in the left ventricular ejection fraction and systolic fractional shortening. Doppler...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Toxic plant; Amorimia rigida; Cardiac muscle profile; Electrocardiography; Echocardiography; Rabbit.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000300007
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Changes in the Activity of Enzymes Primarily Not Synthesized in the Liver Following the Infection Rabbits with Intestinal Coccidia OAK
Kulišić, Zoran; Tambur, Zoran; Maličević, Živorad; Radosavljević, Milan.
Palavras-chave: Rabbit; Enzyme; Intestinal coccidia.
Ano: 1998 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/273
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Comparative Quantitative and Qualitative Attributes of the Surface Respiratory Macrophages in the Domestic Duck and the Rabbit International Journal of Morphology
Mutua,P. M; Gicheru,M. M; Makanya,A. N; Kiama,S. G.
In mammals, surface respiratory macrophages (SM) are known to play a foremost role in protecting the respiratory system by providing first line of defense through engulfing pathogens and particulate matter respired with air. It has been reported that the pulmonary cellular defense system of domestic birds is inadequate. In particular, low number of SM and even lack of the cells in a healthy avian respiratory system have been associated with susceptibility of domestic birds to respiratory diseases. In an endeavor to resolve the existing controversy, the quantitative and qualitative attributes of the surface respiratory macrophages of the domestic duck and of the domestic rabbit were compared under similar experimental conditions. Quantitatively, the rabbit...
Tipo: Journal article Palavras-chave: Avian; Cellular defense; Lung; Phagocytosis; Rabbit; Surface macrophages.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200008
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Donepezil reverses buprenorphine-induced central respiratory depression in anesthetized rabbits Biol. Res.
SAKURABA,SHIGEKI; TSUJITA,MIKI; ARISAKA,HIROFUMI; TAKEDA,JUNZO; YOSHIDA,KAZUICHI; KUWANA,SHUN-ICHI.
Buprenorphine is a mixed opioid receptor agonist-antagonist used in acute and chronic pain management. Although this agent's analgesic effect increases in a dose-dependent manner, buprenorphine-induced respiratory depression shows a marked ceiling effect at higher doses, which is considered to be an indicator of safety. Nevertheless, cases of overdose mortality or severe respiratory depression associated with buprenorphine use have been reported. Naloxone can reverse buprenorphine-induced respiratory depression, but is slow-acting and unstable, meaning that new drug candidates able to specifically antagonize buprenorphine-induced respiratory depression are needed in order to enable maximal analgesic effect without respiratory depression. Acetylcholine is...
Tipo: Journal article Palavras-chave: Buprenorphine; Donepezil; Rabbit; Respiratory depression; Cholinesterase inhibitor.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000400008
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Effect of freezing on rabbit cultured chondrocytes Arq. Bras. Med. Vet. Zootec.
Filgueiras,R.R; Del Carlo,R.J; Alves,N.P; Viloria,M.I.V; McManus,C.M; Castro,M.B; Filgueiras,F.P.F; Monteiro,B.S; Paula,A.C; Farias,A.
This work evaluated the effect of freezing on chondrocytes maintained in culture, aiming the establishment of a cell bank for future application as heterologous implant. Chondrocytes extracted from joint cartilage of nine healthy New Zealand White rabbits were cultivated and frozen with the cryoprotector 5% dimethylsulfoxide for six months. Phenotypic and scanning electron microscopy analyses were carried out to identify morphological and functional differences between fresh and thawed cells. After enzymatic digestion, a total of 4.8x10(5)cells per rabbit were obtained. Fresh chondrocytes showed a high mitotic rate and abundant matrix was present up to 60 days of culture. Loss of phenotypic stability was notable in the thawed chondrocytes, with a low...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rabbit; Cell freezing; Cell therapy; Joint cartilage; Type II collagen.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000100008
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Effect of postnatal malnutrition on hyperoxia-induced newborn lung development BJMBR
Mataloun,M.M.G.B.; Leone,C.R.; Mascaretti,R.S.; Dohlnikoff,M.; Rebello,C.M..
Several factors are associated with bronchopulmonary dysplasia. Among them, hyperoxia and lung immaturity are considered to be fundamental; however, the effect of malnutrition is unknown. Our objective was to evaluate the effects of 7 days of postnatal malnutrition and hyperoxia on lung weight, volume, water content, and pulmonary morphometry of premature rabbits. After c-section, 28-day-old New Zealand white rabbits were randomized into four groups: control diet and room air (CA, N = 17), control diet and ≥95% O2 (CH, N = 17), malnutrition and room air (MA, N = 18), and malnutrition and ≥95% O2 (MH, N = 18). Malnutrition was defined as a 30% reduction of all the nutrients provided in the control diet. Treatments were maintained for 7 days, after which...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Postnatal malnutrition; Hyperoxia; Lung development; Rabbit.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000700004
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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 inspired oxygen fractions in rabbits anesthetized with isoflurane or sevoflurane, maintained on spontaneous ventilation Arq. Bras. Med. Vet. Zootec.
Horr,M.; Nunes,N.; Biteli,E.G.F.; Lopes,P.C.F.; Gering,A.P.; Moro,J.V.; Rocha,F.D.L..
ABSTRACT It is important to identify the best inspired fraction of oxygen in a variety of situations, including sevoflurane or isoflurane anesthesia, in spontaneously breathing rabbits. For this, 64 rabbits were assigned to eight groups: GI100 (FiO2= 1,0 + isoflurane), GS100 (FiO2= 1,0 + sevoflurane), GI80 (FiO2= 0,8 + isoflurane), GS80 (FiO2= 0,8 + sevoflurane), GI60 (FiO2= 0,6 + isoflurane), GS60 (FiO2= 0,6 + sevoflurane), GI21 (FiO2= 0,21 + isoflurane), GS21 (FiO2= 0,21 + sevoflurane). The induction was performed with (2.5MAC) of the anesthetic. The vaporizer was setted at 1.5 MAC and FiO2 as attributed for each group. After the induction, the concentration was changed to 1 MAC. Measurements of parameters were performed 30 minutes after induction (T0),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rabbit; Inhalatory anesthesia; Ventilation.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000300944
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Effects of insulin and actin on phosphofructokinase activity and cellular distribution in skeletal muscle Anais da ABC (AABC)
Silva,Ana Paula P.; Alves,Gutemberg G.; Araújo,Alexandre H.B.; Sola-Penna,Mauro.
In this work, we report evidences that the association of phosphofructokinase and F-actin can be affected by insulin stimulation in rabbit skeletal muscle homogenates and that this association can be a mechanism of phos-phofructokinase regulation. Through co-sedimentation techniques, we observed that on insulin-stimulated tissues, approximately 70% of phosphofructokinase activity is co-located in an actin-enriched fraction, against 28% in control. This phenomenon is accompanied by a 100% increase in specific phosphofructokinase activity in stimulated homogenates. Purified F-actin causes an increase of 230% in phosphofructokinase activity and alters its kinetic parameters. The presence of F-actin increases the affinity of phosphofructokinase for fructose...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phosphofructokinase; Hormone; Rabbit; Actin; Metabolism; Glycolysis.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000300008
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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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Evaluation of extraction methods for progesterone determination in rabbit (Oryctolagus cuniculus) feces by radioimmunoassay Braz. J. Vet. Res. Anim. Sci.
KORNDÖRFER,Clotilde Maria; MEIRELLES,Cyro Ferreira; BUENO,Ives Cláudio da Silva; ABDALLA,Adibe Luiz.
The purpose of this study was to find a practical procedure for the extraction of progesterone (P4) from feces and to determine if the P4 plasma profiles during pregnancy were reflected in the total fecal P4 of pregnant rabbits. The rabbit was used as model for the techniques. Plasma and feces were collected from 11 rabbits during a period of 42 days. Three different methods of P4 extraction were used. The total P4 was measured by solid-phase radioimmunoassay (RIA) with 125I-P4 as the tracer. Results suggested that it was possible to extract total P4 from rabbit feces with methanol and petroleum ether. Plasma and fecal P4 profiles were compared for both pregnant and ovariectomized rabbits. It was possible to differentiate total P4 extracted from day two...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Progesterone; Feces; Radioimmunoassay; Rabbit.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961998000300004
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Experimental infestation with the immatures of Amblyomma dissimile Koch, 1844 (Acari: Ixodidae) on Tropidurus torquatus (Lacertilia: Iguanidae) and Oryctolagus cuniculus Arq. Bras. Med. Vet. Zootec.
Freitas,L.H.T.; Faccini,J.L.H.; Daemon,E.; Prata,M.C.A.; Barros-Battesti,D.M..
Larvas provenientes de duas fêmeas de Amblyomma dissimile Koch, 1844 (Acari: Ixodidae), naturalmente ingurgitadas em uma iguana (Iguana iguana) e provenientes do Estado do Mato Grosso, foram utilizadas na infestação experimental de lagartos da espécie Tropidurus torquatus e coelhos domésticos. As larvas alimentadas em ambos os hospedeiros realizaram ecdise para ninfas. As ninfas apenas ingurgitaram no lagarto e mudaram para machos e fêmeas. Este é o primeiro registro do parasitismo de larvas e ninfas de A. dissimile em T. torquatus e de larvas em coelhos.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amblyomma dissimile; Experimental infestation; Larva; Nymph; Lizard; Rabbit.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000100021
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Genetic homogenisation of birth weight in rabbits : Indirect selection response for uterine horn characteristics Inra
Bolet, G.; Garreau, H.; Joly, T.; Theau-Clément, M.; Falières, J.; Hurtaud, J.; Bodin, L.; INRA, Institut National de la Recherche Agronomique (FRA).
Tipo: Journal Article Palavras-chave: Rabbit; Homogenisation; Selection; Litter weight; Uterus.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20072e69e866&uri=/notices/prodinra1/2007/09/
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Host Cell Specificity on The Entry of Eimeria stiedai Sporozoites in Cultured Cells OAK
Rodriguez, M. E.; Njenga, M. J.; Kawano, T.; Omata, Yoshitaka; Saito, Atsushi; Toyoda, Yutaka.
Palavras-chave: Hepatobiliar epithelial cell; Eimeria stiedai; Invasion; Rabbit.
Ano: 1998 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/280
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