Publications by authors named "Guilherme M Mendes"

Purpose: To evaluate the efficacy of the "omental band" as a bariatric surgical technique.

Methods: A sample of 35 dogs was studied. The Test Group was composed by 20 dogs.

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There are few electrophysiologic studies in wild animals. The aim of this study was to determine normal data for motor nerve conduction studies and repetitive stimulation in sciatic-tibial and ulnar nerves in clinically normal captive coati. Eight adult ring-tailed coatis (Nasua nasua), two females and six males weighing 6-8 kg, were used.

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The aims of this study were to develop a dental evaluate any oral cavity disease, develop gypsum models of the dental arches, and to register the occlusions found in coatis (Nasua nasua) in captivity Formulation of the dental chart was assisted by intraoral radiographs from the head of an adult coati cadaver of the same species with the following dental formula.: I 3/3, C 1/1, P 4/3, M 2/2. Seven live coatis of the Nasua nasua species were evaluated.

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Objective: To assess the brachial plexus block in chickens by an axillary approach and using a peripheral nerve stimulator.

Study Design: Prospective, randomized, double-blinded study.

Animals: Six, 84-week old, female chickens.

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Dps, found in many eubacterial and archaebacterial species, appears to protect cells from oxidative stress and/or nutrient-limited environment. Dps has been shown to accumulate during the stationary phase, to bind to DNA non-specifically, and to form a crystalline structure that compacts and protects the chromosome. Our previous results have indicated that Dps is glycosylated at least for a certain period of the bacterial cell physiology and this glycosylation is thought to be orchestrated by some factors not yet understood, explaining our difficulties in standardizing the Dps purification process.

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The cardiovascular, respiratory, and anesthetic effects of medetomidine-ketamine (20 microg/kg bodyweight [BW] and 10 mg/kg BW) (MK group) or dexmedetomidine-ketamine (10 microg/kg BW and 10 mg/kg BW) (DK group) were studied in golden-headed lion tamarins. Heart rate decreased after administration of both combinations; this reduction was statistically greater in the DK group than in the MK group after 15 and 45 minutes. Systolic arterial pressure decreased in a similar way in both groups, except at 15 minutes, when systolic arterial pressure was significantly lower in the DK group.

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Objectives: To evaluate the effects of a combination of tiletamine-zolazepam-romifidine-atropine in ocelots.

Design: Prospective experimental trial.

Animals: Eight captive adult ocelots (three females and five males).

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Objective: To evaluate the sedative, analgesic, and cardiorespiratory effects of intramascular (IM) romifidine in cats.

Study Design: Prospective, randomized experimental trial.

Animals: Ten healthy adult cats.

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Objective: To compare the anesthetic and cardiovascular effects of dexmedetomidine/ketamine combinations in golden-headed lion tamarins.

Study Design: Prospective blinded randomized study.

Animals: Six healthy golden-headed lion tamarins, three males and three females were studied (mean body weight +/- SD = 0.

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Objective: To determine the cardiorespiratory effects of an i.v. infusion of propofol alone or in association with fentanyl, alfentanil, or sufentanil in cats and, for each combination, the minimal infusion rate of propofol that would inhibit a response to noxious stimuli.

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Objective: To evaluate the use of a combination of tiletamine/zolazepam and xylazine (TZX) in collared and white-lipped peccaries and to compare its efficacy as an anesthetic technique with that of tiletamine/zolazepam and butorphanol (TZB).

Study Design: Prospective experimental trial.

Animals: Seven white-lipped peccaries (Tayassu pecari) (four females and three males) and four collared peccaries (Tayasu tajacu) (two males and two females).

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Objective: To determine sedative and cardiorespiratory effects of dexmedetomidine alone and in combination with butorphanol or ketamine in cats.

Design: Randomized crossover study.

Animals: 6 healthy adult cats.

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Intraocular pressure (IOP) reflects a balance between aqueous humor production and outflow and is often an essential ophthalmic diagnostic procedure in animals. The objective of this study was to estimate IOP in clinically normal red-footed tortoises (Geochelone carbonaria) of various sizes by using applanation tonometry. Intraocular pressures were estimated for 25 captive red-footed tortoises (10 males, 10 females, and 5 animals of unknown sex) by using an applanation tonometer after topical anesthesia.

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Objective: To determine sedative and cardiorespiratory effects of romifidine alone and romifidine in combination with butorphanol and effects of preemptive atropine administration in cats sedated with romifidine-butorphanol.

Design: Randomized crossover study.

Animals: 6 healthy adult cats.

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