Ocular lesions associated with systemic hypertension in cats: 69 cases (1985-1998)     

Maggio F  DeFrancesco TC  Atkins CE  Pizzirani S  Gilger BC  Davidson MG 《Journal of the American Veterinary Medical Association》2000,217(5):695-702

OBJECTIVE: To characterize clinical and clinicopathologic findings, response to treatment, and causes of systemic hypertension in cats with hypertensive retinopathy. DESIGN: Retrospective study. ANIMALS: 69 cats with hypertensive retinopathy. PROCEDURE: Medical records from cats with systemic hypertension and hypertensive retinopathy were reviewed. RESULTS: Most cats (68.1%) were referred because of vision loss; retinal detachment, hemorrhage, edema, and degeneration were common findings. Cardiac abnormalities were detected in 37 cats, and neurologic signs were detected in 20 cats. Hypertension was diagnosed concurrently with chronic renal failure (n = 22), hyperthyroidism (5), diabetes mellitus (2), and hyperaldosteronism (1). A clearly identifiable cause for hypertension was not detected in 38 cats; 26 of these cats had mild azotemia, and 12 did not have renal abnormalities. Amlodipine decreased blood pressure in 31 of 32 cats and improved ocular signs in 18 of 26 cats. CONCLUSIONS AND CLINICAL RELEVANCE: Retinal lesions, caused predominantly by choroidal injury, are common in cats with hypertension. Primary hypertension in cats may be more common than currently recognized. Hypertension should be considered in older cats with acute onset of blindness; retinal edema, hemorrhage, or detachment; cardiac disease; or neurologic abnormalities. Cats with hypertension-induced ocular disease should be evaluated for renal failure, hyperthyroidism, diabetes mellitus, and cardiac abnormalities. Blood pressure measurements and funduscopic evaluations should be performed routinely in cats at risk for hypertension (preexisting renal disease, hyperthyroidism, and age > 10 years). Amlodipine is an effective antihypertensive agent in cats.  相似文献   

Balloon dilation of cor triatriatum dexter in a dog     

Atkins C  DeFrancesco T 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2000,14(5):471-472

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SURVEYS OF PEA MOTH DAMAGE ON DRY HARVESTING PEAS IN EAST ANGLIA, 1957–1959     

H. J. Gould    T. J. Legowski  E. Christine  Atkins 《Plant pathology》1962,11(1):1-6

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Morphologic and immunocytochemical study of young dogs with diabetes mellitus associated with pancreatic islet hypoplasia     

C E Atkins  P M LeCompte  H P Chin  J R Hill  C L Ownby  M S Brownfield 《American journal of veterinary research》1988,49(9):1577-1581

In 11 dogs (7 males, 4 females; 10 purebred, 1 mixed breed), diagnosed as having diabetes mellitus before the age of 6 months, the pancreas was evaluated histologically; in 6, the pancreas also was examined by use of electron microscopy and/or immunocytochemical methods. Each dog was placed in 1 of 3 groups (A through C) on the basis of pancreatic histopathologic findings: Group A (n = 3)--no recognizable islets, but the pancreas in 2 dogs contained scattered endocrine cells detectable by use of immunoperoxidase staining or electron microscopy; Group B (n = 4)--no recognizable islets, but the pancreas had severe vacuolation of ducts and acini, as well as acinar atrophy; Group C (n = 4)--scant shrunken islets; 1 pancreas had reduced numbers of recognizable islets, hydropic beta-cell vacuolation attributable to glycogen deposition, and islet and nonislet endocrine cells in expected proportions. Insulitis was not observed in any pancreas, although scattered lymphocytes were seen in the pancreatic interstitial fibrous tissue of 3 dogs. Histologic pancreatic lesions in these young dogs were distinct from those of type-I (insulin-dependent) diabetes mellitus in human beings, as well as from those of diabetes mellitus in aged dogs, but were similar to those described in other young diabetic dogs. This uncommon syndrome is distinct from commonly recognized canine diabetes mellitus, on the basis of age of onset, predisposition for purebred dogs, lack of predisposing endocrinopathies or obesity, and pancreatic histologic features. The cause(s) is unknown, but is related to pancreatic endocrine hypoplasia and not to insulitis or to exocrine pancreatic inflammation. The term pancreatic islet hypoplasia is chosen as best describing this disorder.  相似文献   

Electrocardiogram of the clinically normal, ketamine-sedated Macaca fascicularis     

C E Atkins  B C Dickie 《American journal of veterinary research》1986,47(2):455-457

Electrocardiograms were obtained from 100 clinically normal cynomolgus macaques (Macaca fascicularis) sedated with ketamine hydrochloride. Calculations were made for heart rates and mean electrical axes (frontal, sagittal, and transverse planes) as well as for amplitudes and/or intervals for P, PR, QRS, Q, R, S, and QT. Proposed ECG reference ranges are set forth for this species.  相似文献   

Media Update     

Gavin Atkins 《Australian veterinary journal》2006,84(5):N19-N19

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AVA/Pfizer Practices of Excellence in Customer Service Awards     

Gavin Atkins 《Australian veterinary journal》2006,84(5):N4-N4

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Genetic correlations between ewe reproduction and carcass and meat quality traits in Merino sheep     

E. Safari  N.M. Fogarty  D.L. Hopkins  J.C. Greeff  F.D. Brien  K.D. Atkins  S.I. Mortimer  P.J. Taylor  J.H.J. Van Der Werf 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2008,125(6):397-402

Genetic correlations between reproduction traits in ewes and carcass and meat quality traits in Merino rams were obtained using restricted maximum likelihood procedures. The carcass data were from 5870 Merino rams slaughtered at approximately 18 months of age that were the progeny of 543 sires from three research resource flocks over 7 years. The carcass traits included ultrasound scan fat and eye muscle depth (EMDUS) measured on live animals, dressing percentage and carcass tissue depth (at the GR site FATGR and C site FATC), eye muscle depth, width and area and the meat quality indicator traits of muscle final pH and colour (L*, a*, b*). The reproduction data consisted of 13 464 ewe joining records for number of lambs born and weaned and 9015 records for LS. The genetic correlations between reproduction and fat measurements were negative (range ?0.06 ± 0.12 to ?0.37 ± 0.12), with smaller correlations for live measurement than carcass traits. There were small favourable genetic correlations between reproduction traits and muscle depth in live rams (EMDUS, 0.10 ± 0.12 to 0.20 ± 0.12), although those with carcass muscle traits were close to zero. The reproduction traits were independent of meat colour L* (relative brightness), but tended to be favourably correlated with meat colour a* (relative redness, 0.12 ± 0.17 to 0.19 ± 0.16). There was a tendency for meat final pH to have small negative favourable genetic correlations with reproduction traits (0.05 ± 0.11 to ?0.17 ± 0.12). This study indicates that there is no antagonism between reproduction traits and carcass and meat quality indicator traits, with scope for joint improvement of reproduction, carcass and meat quality traits in Merino sheep.  相似文献   

Storage mite contamination of commercial dry dog food in south‐eastern Australia     

CE Hibberson  LJ Vogelnest 《Australian veterinary journal》2014,92(6):219-224

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Correction of serum chloride concentration in dogs with congestive heart failure     

Darcy Adin  Clarke Atkins  Leonel Londoo  Bruna Del Nero 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2021,35(1):51-57

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