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Osteoarthritis (OA) is a pathologic condition characterized by progressive destruction of various components of synovial joints. The OA is generally associated with pain and inflammation and therefore lameness, which are capable to decrease the quality of dog life for a long period of time. Unfortunately, there is no treatment for solving OA, but it is possible to slow down its progression through a correct therapeutic approach which could relieve pain and improve the quality of life of the dog and, consequently, of the owner. The objective of the present study was to evaluate the efficacy and safety of enflicoxib for the treatment of naturally occurring canine OA. Fourteen dogs were treated for 13 weeks with enflicoxib (Daxocox®, Ecuphar NV, Italy) administered once a week at 4 mg/kg, with an initial loading dose of 8 mg/kg. From day 0 to day 90 efficacy was assessed by the veterinarian by using clinical pain and lameness scores, and by the owners using the Canine Brief Pain Inventory. At day 0 and 90 a complete blood count and a biochemistry profile were performed in all treated animals. From the first weeks of treatment, a meaningful improvement in the clinical and owner scores was noticed. In conclusion, long term weekly administration of enflicoxib at the proposed dosage, resulted in great benefit for the quality of life of the dog affected by OA. [ABSTRACT FROM AUTHOR]

Simple Summary: Porcupine quill injuries are common in dogs; however, intracardiac quill migration is rare. Considering the high rate of complications secondary to quill penetration and migration, veterinarians should be aware of risks associated with long-standing foreign bodies even when no clinical signs are evident. A dog was referred for three episodes of recurrent fever that resolved with antibiotic therapy. Ultrasonography and computed tomography revealed a single linear hyperechoic structure traversing the interventricular septum from the heart base to the cardiac apex. A median sternotomy was performed, and a porcupine quill was removed under a direct ultrasound guide. The dog recovered uneventfully. Dogs without evidence of severe cardiac injury secondary to a single intracardiac quill may have a good prognosis. The porcupine is a nocturnal quill-bearing rodent common throughout Italy. When threatened, it defends itself by erecting its quills, rattling its tail, and running sideways or backyard into predators. The quills are released upon contact with assailants and tend to migrate into several body tissues or cavities due to the unique inverted cuticles (crenate) directed downwards to the quill base (a sort of "harpoon effect"). Intracardiac migration of porcupine quills has been reported in a few dogs with severe clinical signs. This case report describes a single porcupine quill [Hystrix cristata, (HC)] migration through the heart in a dog and the use of multimodality imaging for the diagnosis and surgical approach. A 4-year-old 25 kg female mixed-breed dog was presented for evaluation of recurrent fever. Transthoracic echocardiographic examination showed a linear, hyperechoic foreign body traversing the interventricular septum from the heart base to the cardiac apex. Computed tomography and transesophageal echocardiography confirmed the presence of a single structure resembling a quill; a later esophageal endoscopy showed no anatomical alterations or mucosal injuries. Following median sternotomy and after accurate localization by intraoperative ultrasound, the quill was successfully removed. The dog had a good recovery without evidence of severe cardiac injury secondary to an intracardiac quill. To the best of the authors' knowledge, the identification of an intracardiac HC quill by ultrasonography and CT and its successful removal by ultrasound guide has not been previously reported. [ABSTRACT FROM AUTHOR]

Simple Summary: Invasive alien species pose a significant threat to biodiversity, as once they have adapted to their new environment, they cause the reduction and even extinction of native species. In this framework, the American grey squirrel (Sciurus carolinensis) poses a serious threat to the European red species squirrel (Sciurus vulgaris), especially in the Umbria region of Italy. In fact, an invasive grey squirrel population has adapted well to the Umbrian territory, showing high reproductive success. In addition to its role in the development of the vertebrate nervous system, nerve growth factor (NGF) has recently been found to play an important role in reproduction. In order to investigate the reproductive physiology of female grey squirrels, the ovarian presence, distribution, and gene expression of NGF and its cognate receptors were evaluated during both breeding and nonbreeding seasons. The presence and gene expression of this system at the ovarian level, mainly during the breeding season, confirm the possible involvement of NGF and its receptors in the gonadal activity of this invasive grey squirrel population. The grey squirrel is an invasive alien species that seriously threatens the conservation of the native red squirrel species. With the aim of characterizing the reproductive physiology of this species due to its great reproductive success, the function of the ovarian nerve growth factor (NGF) system was analyzed in a grey squirrel population living in central Italy. During the breeding and nonbreeding seasons, the ovarian presence, distribution, and gene expression of NGF, neurotrophic tyrosine kinase receptor 1 (NTRK1), and nerve growth factor receptor (NGFR), as well as NGF plasma concentrations, were evaluated in female grey squirrels. NGF was found in the luteal cells and in the thecal and granulosa cells of follicles, while NTRK1 and NGFR were only observed in follicular thecal and granulosa cells. NGF and NGFR transcripts were almost two-fold greater during the breeding season, while no seasonal differences were observed in NTRK1 gene expression. During the breeding season, NGFR was more expressed than NTRK1. Moreover, no changes were observed in NGF plasma levels during the reproductive cycle. The NGF system seems to be involved in regulating the ovarian cycle mainly via local modulation of NGF/NGFR, thus playing a role in the reproductive physiology of this grey squirrel population. [ABSTRACT FROM AUTHOR]

Simple Summary: The presence of an invasive alien species is one of the main causes of biodiversity loss, which occurs through the reduction or even the extinction of native populations. In this context, the EU 2020 biodiversity strategy calls for research on invasive alien species in order to prevent their introduction and spread more effectively. The grey squirrel (Sciurus carolinensis), which is native to North America, provides one of the best-known examples of competitive exclusion of a native one, the European red squirrel (Sciurus vulgaris). A grey squirrel population, living in central Italy (Umbria), was studied to provide parameters on its population dynamics, growth rates, and viability, in order to understand its adaptation to its non-native range. Our data revealed that the Umbrian grey squirrel population is well-adapted to its new range, undergoing two annual mating periods and experiencing high reproductive success. Therefore, these invasive grey squirrels pose a substantial threat to the local European red squirrel population. The reproductive cycle of an invasive alien Italian grey squirrel population was studied to understand its adaptation and limit its spread, in order to conserve the autochthonous red squirrel. Female and male genital traits were evaluated throughout the reproductive cycle, including the ovary, uterus, testicle, epididymis, seminiferous tubule morphometry, and germinative epithelium histology. Moreover, individual female fecundity was determined by counting uterine scars. Ovary width and uterus weight, length, and width reached their highest values in the luteal and pregnancy phases. On conducting a histological evaluation of the testicular germinal epithelium, four morphotypes related to the different reproductive phases of the male squirrels were identified: immature, pubertal, spermatogenesis, and regressive. Testicle and epididymis weights and seminiferous tubule diameters reached their largest values during spermatogenesis. Uterine scar analysis showed that 69% of the females had given birth to one or two litters, while 31% had no uterine scars. Litters were larger in the first breeding period than in the second; annual fecundity was 4.52 ± 1.88 uterine scars/female. Umbrian grey squirrels have adapted to their non-native range, showing two annual mating periods at times similar to those in their native range, and high reproductive success. [ABSTRACT FROM AUTHOR]

The study described in this paper had the goal to validate the Italian version of the UNESP-Botucatu multidimensional composite pain scale (UNESP-Botucatu MCPS) to assess postoperative pain in cats using video analysis and psycometric testing. The English version of the scale was translated into Italian. Thirty videos of the perioperative period of ovariohysterectomy surgery were analysed by 5 Italian observers with the aim to determine the pain score using the Italian version of the scale and to verify the need for analgesic treatment for each cat. Obtained scores were submitted to psycometric validity, responsiveness, and reliability tests. Of the 3 domains identified by factor analysis, the internal consistency was excellent for 'Psychomotor changes' and 'Protection of the painful area and vocal expressions of pain', while 'Physiological variables' showed moderate internal consistency. Significant changes in pain scores in response to surgery and analgesics confirmed content and construct validity. The agreement between the 'gold standard' and the blinded observers supported the criterion validity. Inter- and intra-rater reliability ranged from good to very good for all scale items. The cut-off point for rescue analgesia was > 7. The study concluded that the Italian version of the UNESP-Botucatu MCPS is a valid and reliable instrument for assessing postoperative pain in cats. The cut-off point for rescue analgesia provides an additional tool for guiding analgesic therapy.

Background: Candida spp. are dimorphic fungi in the family Cryptococcaceae. Infections with Candida spp. are usually rare conditions in dogs, but immunocompromised patients have a higher risk for developing invasive candidal infections., Case Presentation: A 5-year-old male Boxer, positive to Leishmania infantum, was referred to the Veterinary Teaching Hospital of the Department of Veterinary Medicine, University of Perugia, Italy for examination of a non-weight bearing left hind limb lameness of a duration of at least 3 months. During this period, treatment involved systemic anti-inflammatory medications and intra-articular corticosteroid administration. On presentation, clinical examination and radiographic findings were suggestive of cranial cruciate ligament deficiency. To support this diagnosis a stifle arthroscopy was performed: it confirmed a partial rupture of cranial cruciate ligament. Samples culture of synovial fluid and membrane was routinely collected as well, and revealed Candida guilliermondii joint infection. Treatment for the C. guilliermondii joint infection involved systemic anti-fungal therapy, joint lavage and intra-articular administration of antifungal drugs. Lameness improved markedly during this treatment, but lameness did not resolve completely, probably due to cranial cruciate ligament deficiency. Tibial tuberosity advancement (TTA) was chosen in order to treat stifle instability and was performed 4 weeks following cessation of treatment of the C. guilliermondii joint infection. Six month after TTA the dog showed a completely recovery with no lameness., Conclusions: To the authors' knowledge, this is the first case of Candida spp. joint infection reported in dogs. The cause of the progression of the joint C. guilliermondii infection remains unclear but it may be associated with leishmaniasis or intra-articular corticosteroid injections. Treatment with systemic and intra-articular anti-fungal therapies was successful. In the evaluation of hind limb lameness in a chronically immunocompromised dog, it would be advisable to consider also an intra-articular Candida spp.