COLOR DOPPLER ULTRASONOGRAPHY IN PREDICTION OF THE REDUCIBILITY OF INTUSSUSCEPTED BOWEL IN 15 YOUNG DOGS     

Michail N. Patsikas  Lysimachos G. Papazoglou  Samuel Jakovljevic  Aggelos K. Dessiris 《Veterinary radiology & ultrasound》2005,46(4):313-316

Color Doppler ultrasonography was performed in 15 young dogs with intestinal intussusception to test the hypothesis that color Doppler findings can be used as a predictor of the manual reducibility of the intussusception at celiotomy. Color flow Doppler ultrasonography indicated blood flow within mesentery of the intussuscepted bowel in 12 of 15 dogs and reduction was achieved in nine of these 12 dogs (75%). In the remaining three dogs and in three dogs where no color Doppler signal were observed, an irreducible intussusception was confirmed at celiotomy. Color Doppler ultrasonography is a useful method for predicting the reducibility of intussusception in dogs.  相似文献   

Contribution à l'étude du Plexus pelvien chez le cheval     

A. A. Tsaknakis    G. G. Kanakoudis  Dr. Sot. Michail 《Anatomia, histologia, embryologia》1972,1(2):153-160

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Evaluating the effects of supplementing Saccharomyces cerevisiae in the feed or drinking water on stress susceptibility of broilers     

E.B. Sobotik  J.R. Nelson  H.O. Pavlidis  G.S. Archer 《The Journal of Applied Poultry Research》2022,31(1):100220

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Haloperoxidase Mediated Quorum Quenching by Nitzschia cf pellucida: Study of the Metabolization of N-Acyl Homoserine Lactones by a Benthic Diatom     

Michail Syrpas  Ewout Ruysbergh  Lander Blommaert  Bart Vanelslander  Koen Sabbe  Wim Vyverman  Norbert De Kimpe  Sven Mangelinckx 《Marine drugs》2014,12(1):352-367

Diatoms are known to produce a variety of halogenated compounds, which were recently shown to have a role in allelopathic interactions between competing species. The production of these compounds is linked to haloperoxidase activity. This research, has shown that this system may also be involved in diatom-bacteria interactions via the H₂O₂ dependent inactivation of a type of quorum sensing (QS) molecule, i.e., N-β-ketoacylated homoserine lactones (AHLs), by a natural haloperoxidase system from the benthic diatom Nitzschia cf pellucida. The AHL degradation pathway towards corresponding halogenated derivatives was elucidated via HPLC-MS analysis and the synthesis of a broad series of novel halogenated AHL analogues as reference compounds. Furthermore, their biological activity as quorum sensing modulators was directly compared and evaluated against a series of naturally occurring β-keto-AHLs. It has been demonstrated that the loss of the QS activity results from the final cleavage of the halogenated N-acyl chain of the signal molecules.  相似文献   

Physiological colour changes in the red porgy, Pagrus pagrus, following adaptation to blue lighting spectrum     

V. Szisch  A.L. van der Salm  S.E. Wendelaar Bonga  M. Pavlidis 《Fish physiology and biochemistry》2002,27(1-2):1-8

The effect of lighting spectrum (full vs. blue) on skin colour and stress response in red porgy, Pagrus pagrus, held under a 12L:12D photoperiod was investigated. Fish exposed to blue lighting spectrum became gradually paler with a maximum lightness value (L = 45.33) on day 27, significantly higher than control fish (L = 31.49). However, there was no difference in skin melanin content, hue and chroma among the experimental groups. There was also no statistically significant effect of lighting spectrum on average glucose, thyroxine (T₄), triiodothyronine (T₃), cortisol (F) and Melanophore Stimulating Hormone (MSH) plasma concentrations nor in the pattern of changes during the time course of the experiment. Results showed that lighting spectrum affects skin lightness but not the chromaticity attributes hue and chroma. This effect is due to changes in the motility of the melanophores (the area occupied by melanosomes) and is not mediated by MSH or the general stress response.  相似文献   

COMPUTED TOMOGRAPHY DIAGNOSIS OF ISOLATED SPLENIC TORSION IN A DOG     

Michail N.  Patsikas  DVM  PhD  Timoleon  Rallis  DVM  PhD  Stefanos E.  Kladakis  DVM  Aggelos K.  Dessiris  DVM  PhD 《Veterinary radiology & ultrasound》2001,42(3):235-237

Isolated splenic torsion in a dog was diagnosed using computed tomography (CT). The enlarged non enhanced spleen and a twisted soft tissue mass effect represented the rotated pedicle were the main findings. Abdominal radiography and ultrasonography were not conclusive.  相似文献   

Clinical signs and clinicopathologic abnormalities in dogs with clinical spirocercosis: 39 cases (1996-2004)     

Mylonakis ME  Rallis T  Koutinas AF  Leontides LS  Patsikas M  Florou M  Papadopoulos E  Fytianou A 《Journal of the American Veterinary Medical Association》2006,228(7):1063-1067

OBJECTIVE: To determine clinical signs and clinicopathologic abnormalities in dogs with naturally occurring clinical spirocercosis. DESIGN: Retrospective case series. ANIMALS: 39 dogs with spirocercosis. PROCEDURES: Medical records were reviewed, and information on signalment, residence (rural vs urban), owner complaints, physical examination findings, clinicopathologic abnormalities, radiographic and endoscopic findings, and concurrent systemic diseases was recorded. RESULTS: Hellenic hounds and mixed-breed dogs were overrepresented, compared with a group of 117 control dogs without spirocercosis that were examined because of gastrointestinal tract disease, and mean body weight of dogs with spirocercosis was significantly higher than mean body weight of control dogs. Odynophagia (34 [87%]), regurgitation (24 [62%]), and excessive salivation (14 [36%]) were the most common clinical findings. The most common radiographic abnormalities were a mass in the caudodorsal aspect of the mediastinum (15/35 [43%]) and spondylitis of the caudal thoracic vertebrae (10 [29%]). Parasitic nodules were seen during esophagoscopy in all 39 dogs. Normocytic, normochromic, nonregenerative anemia; neutrophilic leukocytosis; hyperproteinemia; and high alkaline phosphatase activity were significantly more common in dogs with spirocercosis than in a control group of 56 healthy dogs. Concurrent systemic diseases, mainly leishmaniosis, dirofilariosis, and monocytic ehrlichiosis, were documented in 14 (36%) dogs. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggest that clinical spirocercosis occurs more often in young-adult, large-breed dogs. Nonregenerative anemia, neutrophilic leukocytosis, hyperproteinemia, and high alkaline phosphatase activity may be useful clinicopathologic indicators of this disease.  相似文献   

Canine bronchomalacia: a clinicopathological study of 18 cases diagnosed by endoscopy     

Adamama-Moraitou KK  Pardali D  Day MJ  Prassinos NN  Kritsepi-Konstantinou M  Patsikas MN  Rallis TS 《Veterinary journal (London, England : 1997)》2012,191(2):261-266

Canine bronchomalacia (BM) is characterized by weakness leading to collapse of the bronchial wall. A prospective study of 18 affected dogs (age range: 1-15 years) was undertaken to characterize the clinicopathological and histological features of BM. Poodles and Yorkshire terriers were commonly affected. Half of the dogs were overweight or obese. The clinical presentation was a mild, wheezing, chronic cough and pulmonary crackles were heard in 28% of the dogs. Compatible radiographic changes were present in 61% of the dogs. Using bronchoscopy, both lungs were affected in half of the animals, whereas in the others the disease appeared to affect predominantly the left lung. Analysis of bronchoalveolar lavage fluid and biopsies of bronchial mucosa revealed pure or mixed neutrophilic inflammation. Underlying infectious bronchitis was considered possible in 56% of the dogs. It was concluded that canine BM may present as an isolated clinical entity associated with infection and/or inflammation.  相似文献   

Effects of conservation tillage drills on soil quality indicators in a wheat–oilseed rape rotation: organic carbon,earthworms and water-stable aggregates     

Michail L. Giannitsopoulos  Paul J. Burgess  R. Jane Rickson 《Soil Use and Management》2020,36(1):139-152

The effects of five conservation tillage drills with crop residue levels covering between 17% and 79% of the soil, and tillage depths ranging from 25 to 200 mm, were examined over 3 years. The tillage systems ranged from a relatively disruptive Farm System to a Low Disruption system, with three intermediate treatments labelled Sumo DTS, Claydon and Mzuri. The study involved field sites on a clay or clay loam soil, where winter wheat and oilseed rape were grown in rotation. In the clay field, the Mzuri and Low Disruption treatments, which produced the highest residue coverage, showed the greatest increase in surface total soil organic carbon (1.1 and 0.48 Mg C ha⁻¹, respectively) between years 1 and 3. The least disruptive tillage system also resulted in the highest density of earthworms (181–228 m⁻²), and the most disruptive system produced the lowest densities (75–98 m⁻²). In the third year, the least disruptive system also showed a higher proportion of water-stable aggregates (29.8%) than the other treatments (22.7%–25.3%). Linear regressions showed positive relationships of both soil organic carbon and earthworm density with surface residue cover, and of the proportion of water-stable aggregates with soil organic carbon.  相似文献   

Conservative Management of a Distal Epiphyseal Metacarpal Fracture in a Skyros Pony     

Eleni-Maria AMANITI  Nikolaos DIAKAKIS  Michail PATSIKAS  Ioannis SAVVAS 《Journal of Equine Science》2008,19(3):57-61

Epiphyseal fracture, also known as epiphysiolysis, is the loosening or separation, either partial or complete, of an epiphysis from the shaft of a long bone. Distal epiphyseal fractures in foals pose a substantial challenge due to their guarded prognosis. This report describes the clinical signs, diagnosis, successful conservative treatment of an 1-month-old, male Skyros pony with an epiphyseal fracture of the right third metacarpal bone (type II Salter-Harris). The owner declined surgical treatment because of financial considerations along with the unfavorable prognosis. Conservative fracture treatment was pursued through external reduction and coaptation. The total duration of the conservative treatment was eighteen weeks and the foal returned to complete health.  相似文献