Glycohistochemical characterization of histologically normal nasal mucosa and enzootic nasal tumor of sheep     

P Scocco  E Lepri  F Mercati  G Vitellozzi  L Mechelli  P Ceccarelli 《American journal of veterinary research》2012,73(8):1128-1136

Objective-To determine glycohistochemical characteristics of enzootic nasal tumors (ENTs) of sheep, compare results for ENT with those of histologically normal nasal mucosa of sheep, and identify the histologic origin of ENT. Sample-ENT and nasal mucosa samples obtained from cadavers of 5 adult Lacaune sheep with ENT and 5 Lacaune sheep unaffected by ENT, respectively. Procedures-Samples of ENT and nasal mucosa were collected from cadavers of sheep and sectioned. Conventional and lectin histochemical analyses were used to identify glycoconjugates in tissue sections on the basis of their principal chemical groups and principal terminal or internal oligosaccharidic glucidic residues, respectively. Results-ENTs had papillary and tubular portions. Cells in the papillary portion of ENTs had secretion and surface glycoconjugates, which included sulfated glycosaminoglycans and neutral and sialilated glycoproteins. Cells in the tubular portion of ENTs had surface glycoconjugates, which included neutral and sialilated glycoproteins. Both portions of ENTs had C(4)-acetylated sialoderivatives that were not detected in sections of histologically normal nasal mucosa. Conclusions and Clinical Relevance-The papillary portion of ENTs in sheep may originate from respiratory glands and goblet cells. The tubular portion of ENTs in sheep may originate from olfactory glands. Presence of C(4)-acetylated sialoderivatives in cells of ENTs could confer resistance against pathogens to those cells.  相似文献   

Digital Agenesia in Martina Franca Donkey Foal: A Case Report     

Domenico Robbe  Augusto Carluccio  Alessia Gloria  Alberto Contri  Mario Ventura  Claudia Rita Catacchio  Paola Straticò  Lucio Petrizzi 《Journal of Equine Veterinary Science》2012

A 4-day-old male Martina Franca donkey foal was evaluated for a forelimb alteration. Clinical examination and radiographs revealed the agenesia of the distal digit. Biochemical parameters were normal, and ultrasonographic evaluation did not identify any relievable organ alteration. Karyotype study revealed an abnormality on chromosome 1. The foal was discharged with a distal limb bandage in which a palmar splint was applied. A poor prognosis for the functionality of the limb was given. In endangered species, such as the Martina Franca donkey, the excessive inbreeding could result in an increase in genetic disorders. These findings shed new light on the possible pathogenesis of the digital dysgenesia. The study of the karyotype could be a useful approach to detect genetic alterations that could or could not be expressed in the animal, especially in endangered species in which a risk of an excessive inbreeding is considerable. These defects should be considered in the choice and selection of the breeders.  相似文献   

Distribution of acute phase proteins in the bovine forestomachs and abomasum   总被引：1，自引：0，他引：1  

Dilda F  Pisani LF  Rahman MM  Modina S  Tessaro I  Sartorelli P  Ceciliani F  Lecchi C 《Veterinary journal (London, England : 1997)》2012,192(1):101-105

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Dermatophytosis and papular eosinophilic/mastocytic dermatitis (urticaria pigmentosa-like dermatitis) in three Devon Rex cats     

Colombo S  Scarampella F  Ordeix L  Roccabianca P 《Journal of Feline Medicine and Surgery》2012,14(7):498-502

PRESENTING SIGNS: Three Devon Rex cats were presented with multiple erythematous papules, occasionally associated with crusting and hyperpigmentation, with a linear distribution on the head, neck, chest and abdomen. One cat also had multifocal alopecia with hyperpigmentation on the dorsum. DIAGNOSIS AND TREATMENT: Clinical and histopathological features were suggestive of papular eosinophilic/mastocytic dermatitis (urticaria pigmentosa-like dermatitis). In all cases, dermatophytosis was diagnosed: in cases 1 and 2 there was histopathological evidence of dermatophytosis, while fungal culture was positive for Microsporum canis in cases 2 and 3. In all cats, lesions disappeared following antifungal treatment. CLINICAL SIGNIFICANCE: Papular eosinophilic/mastocytic dermatitis in Devon Rex cats may represent either an atypical presentation of dermatophytosis or a clinical and histological reaction pattern to various diseases, including dermatophytosis and allergic diseases. Clinical differentiation is crucial as there are important implications regarding treatment and, in particular, the use of glucocorticoids, which are contraindicated in cases of dermatophytosis.  相似文献   

In vitro evaluation of canine hemostasis following dilution with hydroxyethyl starch (130/0.4) via thromboelastometry     

Sara Falco DVM  Barbara Bruno DVM  Cristiana Maurella DVM  MS  Claudio Bellino DVM  PhD  Antonio D'Angelo DVM  PhD  DECVN  DECBHM  Paola Gianella DVM  PhD  DACVIM  Alberto Tarducci DVM  Renato Zanatta DVM  PhD  Antonio Borrelli DVM  PhD  MS 《Journal of Veterinary Emergency and Critical Care》2012,22(6):640-645

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Seasonal variation in nitrogen isotopic composition of bog plant litter during 3 years of field decomposition     

Luca Bragazza  Paola Iacumin  Chiara Siffi  Renato Gerdol 《Biology and Fertility of Soils》2010,46(8):877-881

In this study, we describe the seasonal variation in ¹⁵N abundance in the litter of two Sphagnum species and four vascular plant species during 3 years of field decomposition in an Italian Alpine bog. Litter bags were periodically retrieved at the end of summer and winter periods, and the δ¹⁵N in residual litter was related to mass loss, litter chemistry, and climatic conditions. In Sphagnum litter, higher rates of decomposition during summer months were associated with an increase of δ¹⁵N probably due to the incorporation of microbial organic compounds rich in ¹⁵N. The litter of Eriophorum vaginatum and Carex rostrata was characterized by a decrease of δ¹⁵N, so that the final signature was significantly lower than in initial litter. On the other hand, the residual litter of Potentilla erecta and Calluna vulgaris was characterized by a final δ¹⁵N higher than in initial litter. Our data reported a seasonality of ¹⁵N abundance in the residual litter of Sphagnum species, but not in that of vascular plant species, thus highlighting the role of differences in litter chemistry.  相似文献   

Pyrosequencing of the rabies virus glycoprotein gene to demonstrate absence of vaccine-associated rabies cases following oral vaccination     

Paola De Benedictis  Cristian De Battisti  Sabrina Marciano  Franco Mutinelli  Ilaria Capua  Giovanni Cattoli 《Veterinary journal (London, England : 1997)》2013,195(3):388-390

Replication competent vaccines have been used successfully for the control of terrestrial rabies, mainly in wildlife; however, these vaccine strains occasionally may induce rabies. In this study, a pyrosequencing protocol for the rapid identification of vaccine-associated rabies viruses was applied to the 2008–2011 Italian epidemic. There was no evidence of vaccine-associated rabies cases following oral vaccination of foxes with the SAG2 and SADB19 vaccine strains.  相似文献   

Metabolic Control of Feed Intake : Implications for Metabolic Disease of Fresh Cows     

Michael S. Allen  Paola Piantoni 《Veterinary Clinics of North America: Food Animal Practice》2013

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Effects of oral caffeine administration to sows with induced parturition on hypoxia in piglets     

Paola Superchi  Claudio MazzoniPaola Zanardelli  Chiara PiancastelliErnesto Mario Zambini  Valentino BerettiAlberto Sabbioni 《Livestock Science》2013,157(1):372-377

To counteract the effects of perinatal hypoxia in piglets, the oral administration of caffeine to sows with induced parturition was evaluated. On day 113 of gestation 9 sows received 27 mg/kg body weight (BW) of caffeine mixed with 200 g of standard diet. The same amount of feed without the addition of caffeine was administered to 9 control sows. Additionally, on day 113 of gestation, all sows were treated by two injections in the perianal area of 1 mg of alfaprostol (at 8:00 am and 14:00 pm), and on the morning of farrowing by 14 IU of oxytocin in the perianal area. Caffeine did not affect BW of piglets and size of litters; however piglets from treated sows showed a higher capacity to adapt to extra-uterine life. Particularly, they showed a greater thermoregulatory ability (P<0.001) and a higher percentage of viability score≥7 compared to piglets from control sows (92% vs. 75%, respectively; P=0.030). Caffeine furthermore reduced the frequency of high serum biopterin values (>80 nmol/L) in piglets born from treated sows (P=0.001). In conclusion, the caffeine orally administered to sows with induced parturition showed a protective effect on the consequences of neonatal hypoxia in tissue ischemia–reperfusion injury in piglets.  相似文献   

Growth and biomass partitioning of nine provenances of Quillaja saponaria seedlings to water stress     

Carlos Magni  Paola Poch  Betsabé Abarca  Iván Grez  Eduardo Martínez 《Southern Forests》2019,81(2):103-109

Information on the morphological and physiological responses of seedlings to stressors, such as water stress, is required for successful early establishment of seedlings. We examined provenance variation in morphological and physiological traits of Quillaja saponaria Molina seeds from nine provenances representing a latitudinal transect across the species range in Chile. The seedlings were subjected to two water regimes (well-watered vs water restriction) in a nursery experiment, and growth, biomass, survival, and gas exchange traits were measured. As expected, well-watered seedlings exhibited a superior performance in all traits analysed. Provenance effects were significant for most of the morphological and physiological traits. In the growth and biomass analysis, the northernmost provenance showed the lowest survival, growth and dry biomass, whereas in the gas exchange analysis, the southern interior provenance showed the highest net photosynthesis, transpiration, stomatal conductance and water use efficiency. The interaction between water regimes and provenance was only significant for diameter and net photosynthesis. These results indicate that different provenances of Q. saponaria show a stable performance across different controlled drought conditions. This information is of relevance for sourcing seeds for the restoration of the species.  相似文献