1,721,063 research outputs found

    Benign prostatic hyperplasia in the dog

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    In small animal practice, prostatic diseases are increasingly encountered. All dogs may experience prostatic disease, but there should be particular attention to breeding dogs, as prostatic disease may decrease semen quality and fertility. The most common prostatic disease is benign prostatic hyperplasia (BPH), a non-cancerous enlargement of the gland affecting intact adult dogs, part of an aging process, including both an increase in cell numbers (hyperplasia) and in cell size (hy-pertrophy). Acute and chronic prostatitis, prostatic abscess, prostatic neoplasia and prostate squamous metaplasia also occur in dogs, in order of frequency. These diseases often lack pathognomonic clinical signs; therefore, a thorough clinical examination and a correct diagnostic protocol are essential to determine the most appropriate treatment or prophylaxis. Frequently dogs with BPH are asymptomatic, but when clinical signs are present, the most common is a serous to sanguineous urethral discharge. BPH therapy includes various options and is usually recommended when mild-severe signs are present or if clinical signs disturb the dog. In most dogs with this disorder, it is possible to maintain fertility by avoiding castration and choosing alter-native therapeutic approaches

    Innovative models for teaching reproduction in small animals: The experience at DIMEVET of Bologna University

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    For a long time, the main way to acquire the skills necessary for good veterinary practice has been the traditional apprenticeship model (observe, assist, and perform under supervision). However, in the last years, more creative and innovative teaching models have been adopted by academic institutions and, parallelly, the opportunities to gain hands-on experience for clinical and surgical procedures are becoming more limited. For that reason, the introduction of the models can provide a potential solution to the ethical and legal implications related to the use of live animals for educational purposes and the biosafety risks deriving from the manipulation of human/animal cadavers. The activity on this topic at DIMEVET and, in particular, the experience about teaching reproduction includes in-house production and use of odels for learning skills both for degree (fifth and third years of course) and post-graduate courses. Our models are designed on the basis of two fundamental aspect: the student level and the teacher target. The aim of this study was to evaluate, for the first time in literature, how much the use of simulators impacts on practical teaching in degrees and post graduate courses at DIMEVET, considering different learners with different levels of knowledge and skills. Namely, effectiveness, adequacy and quality of simulators have been checked assessing students’ learning experience and teacher’s opinion by specific satisfaction questionnaires and considering the attendance at the training sessions and the results of a final examination (PHY group) and an in vivo test (POST group). The rate of satisfaction was high among the three groups considered and the participants that had used the models had a higher success, both in the final examination and in vivo test. Data collected have been useful in order to show an improvement in teaching at DIMEVET in the field of reproduction, despite the relatively short years of experience using simulation. With this study we demonstrate that the adequacy of the models is not correlated to how simulators is built, whether with basic materials or not faithfully in terms of anatomical appearance, but it is important that it is realistic in terms of psychomotor procedure. In conclusion, the use of models permits the student to gain the hand-eye coordination and dexterity necessary to perform certain skills and the models proposed are meeting the desired educational goals

    Effect of Medetomidine and Dexmedetomidine at Different Dosages on Cat Semen Quality Using Urethral Catheterization After Pharmacological Induction (UrCaPI)

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    The aim of this study was to evaluate the effectiveness of different anesthetic protocols for semen collection from healthy tomcats using Urethral Catheterization after Pharmacological Induction (UrCaPI). Twenty sexually mature tomcats (Felis catus) were included in the study, in which high and low dosages of medetomidine or dexmedetomidine were administrated to collect semen. Ten healthy mature tomcats (Group A) received high dosages of the drugs, and, in particular, five of them were i.m. injected with 120 μg/kg of medetomidine (HMED) on day 1 and with 60 μg/kg of dexmedetomidine (HDEX) after 24 h (day 2). The remaining five tomcats of this group were i.m. injected with 60 μg/kg of dexmedetomidine on day 1 and with 120 μg/kg of medetomidine on day 2. The other ten healthy mature tomcats (Group B) received a low dosage of the same drugs; the first five tomcats were i.m. injected with 50 μg/kg of medetomidine (LMED) on day 1 and with 25 μg/kg of dexmedetomidine (LDEX) on day 2; the others were i.m. injected with 25 μg/kg of dexmedetomidine on day 1 and with 50 μg/kg of medetomidine after 24 h. In both groups, semen collection was performed as soon as the pharmacological effect of the drug was reached. All protocols permitted sperm collection, even if with different results in quality for volume, concentration, total number of spermatozoa, and movement score. Results suggest that both a high dosage of medetomidine and a high dosage of dexmedetomidine could be used for the collection of good-quality semen. Semen volume μL: HMED = 32 μL (25.75–37.5), HDEX = 23 μL (15.25–28). Concentration HMED = 670 × 106/mL (576–990.5), HDEX = 670.5 × 106/mL (536–790). Total number of spermatozoa = 23.24 × 106 (18.37–32.05). Total number of spermatozoa = 13.121 × 106 (10.116–16.83). However, the protocol with dexmedetomidine could not always guarantee an adequate sedation for urethral catheterization, so using a high dosage of medetomidine is still the better way to collect high quality semen with the UrCaPI technique. The outcome of the LMED and LDEX protocols was generally unsatisfactory regarding both level of sedation and semen collection in terms of volume (LMED = 3 μL (4–7.5); LDEX = 6 μL (4–7)), concentration (LMED = 215 × 106/mL (157–248); LDEX = 27.05 × 106/mL (0.040–110), total number of spermatozoa (LMED = 0.88 × 106 (0.581–1.38); LDEX = 0.16 × 106 (0.0001–0.80), and movement score (LMED = 3 (2–3); LDEX = 2 (0–2.75))

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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