Comparative lipid and lipoprotein metabolism     

Bauer JE JE 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1996,25(2):49-56

This review summarizes a number of recent reports in several areas of lipid and lipoprotein metabolism. Absorption of dietary lipids, cholesterol synthesis, and biliary cholesterol metabolism are mentioned only briefly to be complete. Comparative aspects of lipoprotein metabolism, however, are detailed in an effort to integrate the myriad metabolic events which characterize these important lipid transport particles. Where comparative information is known, those aspects of lipoprotein metabolism that may be protective against atherogenesis in certain mammalian species are also described. Efforts to understand atherogenic resistance comparatively in animals lends a better understanding of the metabolic events leading to coronary artery disease in humans. They also provide an important basis for understanding lipid metabolism in numerous veterinary species.  相似文献   

Use of in vitro assays to identify antibiotics that are cytotoxic to normal equine chondrocytes and synovial cells     

Lynn Pezzanite  Lyndah Chow  Gabriella Piquini  Gregg Griffenhagen  Dominique Ramirez  Steven Dow  Laurie Goodrich 《Equine veterinary journal》2021,53(3):579-589

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Synovial fluid from a kid with polyarthritis     

Alleman AR  Henson KL  Polkes A  Ramirez S  Brown M 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1999,28(2):64-66

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Comparison of methods to assess dog owners' therapeutic compliance     

LS BARTER  JE MADDISON  ADJ WATSON 《Australian veterinary journal》1996,74(6):443-446

Objective To compare different methods for assessing the compliance of veterinary clients administering medication to their dogs.
Procedure Thirty-one owners whose dogs were prescribed amoxycillin-clavulanate, twice and thrice daily, for a duration of five to seven days were recruited from three Sydney veterinary hospitals. Compliance was assessed by electronic monitoring devices, return medication counts, client self-reports and veterinarians' estimation of likely compliance.
Results Electronic monitoring showed owners administered on average 84% (range 7 to 104%) of prescribed medication to their dogs. Both return medication counts and client self-reports tended to overestimate therapeutic compliance when compared with electronic monitoring. When questioned, the majority of owners (71%) claimed perfect compliance with the prescribed regimen. No correlation was found between veterinarians' estimates of owner compliance and that assessed electronically.
Conclusion Electronic monitoring provided valuable information on dose timing and variation, but proved costly and difficult to employ in veterinary practice. Simplicity and low cost of return medication counts makes this method attractive for use in veterinary compliance studies. Client self-reports reliably detected some noncompliers and permitted identification of individual problems or errors. For practical purposes a combination of return medication counts and client self-reports may have merit in future veterinary compliance studies.  相似文献   

Bovine TB: studies on the risk of herd breakdown     

Medley G  Green L  Ramirez A 《The Veterinary record》2003,152(2):59-60

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Developmental Consequences of Sexual Dimorphism During Pre-implantation Embryonic Development     

A Gutiérrez-Adán  M Perez-Crespo  R Fernandez-Gonzalez  MA Ramirez  P Moreira  B Pintado  P Lonergan  D Rizos 《Reproduction in domestic animals》2006,41(S2):54-62

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Hyperthyroidism Associated with a Thyroid Adenocarcinoma in a 21-Year-Old Gelding     

Sammy Ramirez  Jill J. McClure  Rustin M. Moore  Karen J. Wolfsheimer  Stephen D. Gaunt  Mustajab H. Mirza  Wayne Taylor 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1998,12(6):475-477

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Empirical models to predict LAI and aboveground biomass of Coffea arabica under full sun and shaded plantation: a case study of South of Minas Gerais,Brazil     

Priscila Pereira Coltri  Jurandir Zullo Junior  Vincent Dubreuil  Glaucia Miranda Ramirez  Hilton Silveira Pinto  Gustavo Coral  Camila Giorgi Lazarim 《Agroforestry Systems》2015,89(4):621-636

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Kisspeptin,c‐Fos and CRFR Type 2 Co‐expression in the Hypothalamus after Insulin‐Induced Hypoglycaemia     

C Fergani  JE Routly  DN Jones  LC Pickavance  RF Smith  H Dobson 《Reproduction in domestic animals》2014,49(3):433-440

Normal reproductive function is dependent upon availability of glucose and insulin‐induced hypoglycaemia is a metabolic stressor known to disrupt the ovine oestrous cycle. We have recently shown that IIH has the ability to delay the LH surge of intact ewes. In the present study, we examined brain tissue to determine: (i) which hypothalamic regions are activated with respect to IIH and (ii) the effect of IIH on kisspeptin cell activation and CRFR type 2 immunoreactivity, all of which may be involved in disruptive mechanisms. Follicular phases were synchronized with progesterone vaginal pessaries and at 28 h after progesterone withdrawal (PW), animals received saline (n = 6) or insulin (4 IU/kg; n = 5) and were subsequently killed at 31 h after PW (i.e., 3 h after insulin administration). Peripheral hormone concentrations were evaluated, and hypothalamic sections were immunostained for either kisspeptin and c‐Fos (a marker of neuronal activation) or CRFR type 2. Within 3 h of treatment, cortisol concentrations had increased whereas plasma oestradiol concentrations decreased in peripheral plasma (p < 0.05 for both). In the arcuate nucleus (ARC), insulin‐treated ewes had an increased expression of c‐Fos. Furthermore, the percentage of kisspeptin cells co‐expressing c‐Fos increased in the ARC (from 11 to 51%; p < 0.05), but there was no change in the medial pre‐optic area (mPOA; 14 vs 19%). CRFR type 2 expression in the lower part of the ARC and the median eminence was not altered by insulin treatment. Thus, disruption of the LH surge after IIH in the follicular phase is not associated with decreased kisspeptin cell activation or an increase in CRFR type 2 in the ARC but may involve other cell types located in the ARC nucleus which are activated in response to IIH.  相似文献   

Stocking density effects on larval growth and survival of two catarina scallop, Argopecten ventricosus (= circularis) (Sowerby II, 1842), populations     

A M Ibarra  J L Ramirez  G A Garcia 《Aquaculture Research》1997,28(6):443-451

Two populations of catarina scallop, Argopecten ventricosus (= circularis) (Sowerby II, 1842), were evaluated for their larval growth and survival responses to different stocking densities. Larvae from the Magdalena population had a significantly higher growth but equal survival at a density of 10 larvae ml^?1 compared with 20 larvae ml^?1. Larvae from the Concepcion population grew better at densities of 15 and 20 larvae ml^?1 than at densities of 5 and 10 larvae ml^?1, although survival was lower at higher densities. The differing response of these two populations to increased stocking densities is explained as a possible consequence of different population adaptations related to behavioural and physiological mechanisms. The importance of establishing optimum stocking densities for molluscan larvae is stressed in two contexts: maximizing growth and survival for different populations when artificially reared, and understanding the effects of stocking densities on phenotypic variance, especially during the course of genetic studies.  相似文献