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https://www.readbyqxmd.com/read/29721315/effects-of-body-fat-mass-and-therapeutic-weight-loss-on-vitamin-d-status-in-privately-owned-adult-dogs
#1
Tabitha J Hookey, Robert C Backus, Allison M Wara
More than one-third of humans and companion dogs in Western societies are overweight or obese. In people, vitamin D deficiency is widespread and associated with obesity, a now recognised inflammatory state. Low vitamin D status occurs in dogs with inflammatory conditions, but its relationship with obesity has not been investigated. In otherwise healthy privately owned adult dogs of ideal body condition (control, n 7) and dogs with overweight to obese body condition (treatment, n 8), serum 25-hydroxyvitamin D (25(OH)D) concentration and body composition as inferred from 2 H-labelled water dilution space were evaluated...
2018: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29717985/-calcitriol-induced-hypercalcemia-in-a-hunting-dog-with-a-disseminated-paecilomyces-variotii-infection
#2
C Weingart, J Raila, A Lübke-Becker, O Kershaw, M Brunnberg, B Kohn
A 5-year old hunting dog was presented with reduced appetite, weight loss and polyuria/polydipsia. Hematology and clinical chemistry revealed anemia, leukocytosis, increased liver enzymes, hypoalbuminemia and hypercalcemia. The cytological, pathohistological and microbiological examination identified a disseminated infection with the saprophytic mould fungus Paecilomyces variotii in the biopsies of the spleen and a lymph node. Determination of vitamin D metabolites confirmed a calcitriol induced hypercalcemia...
May 2018: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/29590167/serum-vitamin-d-concentrations-in-hospitalized-critically-ill-dogs
#3
Jared A Jaffey, Robert C Backus, Kaylyn M McDaniel, Amy E DeClue
Hypovitaminosis D has been extensively documented in critically ill humans. However, whether or not critically ill dogs have alterations in vitamin D concentrations remains unconfirmed. The primary aims of our study were to compare serum 25-hydroxycholecalciferol [25(OH)D] concentrations in critically ill dogs with healthy control dogs, determine the prognostic utility of serum 25(OH)D concentration as a biomarker in critically ill dogs, and to assess if serum 25(OH)D concentrations in critically ill dogs are associated with length of stay in the intensive care unit or illness severity...
2018: PloS One
https://www.readbyqxmd.com/read/29544996/the-pathology-of-vitamin-d-deficiency-in-domesticated-animals-an-evolutionary-and-comparative-overview
#4
REVIEW
Elizabeth W Uhl
Although vitamin D is critical to calcium/phosphorus homeostasis, bone formation and remodeling, there is evolution-based variation between species in vitamin D metabolism and susceptibility to rickets and osteomalacia. Most herbivores produce vitamin D3 in response to sunlight, but dogs and cats have generally lost the ability as carnivore diets are rich in vitamin D. Nutritional deficiencies and/or poor exposure to sunlight can induce rickets in birds, swine, cattle and sheep, but horses are less susceptible as they have evolved a calcium homeostasis that is quite different than other animals...
March 13, 2018: International Journal of Paleopathology
https://www.readbyqxmd.com/read/29469965/vitamin-d-receptor-expression-in-dogs
#5
J A Cartwright, A G Gow, E Milne, D Drummond, S Smith, I Handel, R J Mellanby
BACKGROUND: There is growing evidence linking low blood vitamin D concentration to numerous diseases in people and in dogs. Vitamin D influences cellular function by signaling through the vitamin D receptor (VDR). Little is known about which non-skeletal tissues express the VDR or how inflammation influences its expression in the dog. OBJECTIVES: To define which non-skeletal canine tissues express the VDR and to investigate expression in inflamed small intestine...
March 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29447473/impact-of-micronutrients-on-the-immune-response-of-animals
#6
Allen D Smith, Kiran S Panickar, Joseph F Urban, Harry D Dawson
Vitamins and minerals (micronutrients) play an important role in regulating and shaping an immune response. Deficiencies generally result in inadequate or dysregulated cellular activity and cytokine expression, thereby affecting the immune response. Decreased levels of natural killer, granulocyte, and phagocytic cell activity and T and B cell proliferation and trafficking are associated with inadequate levels of micronutrients, as well as increased susceptibility to various adverse health conditions, including inflammatory disorders, infection, and altered vaccine efficacy...
February 15, 2018: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/29419484/vitamin-d-shows-in-vivo-efficacy-in-a-placebo-controlled-double-blinded-randomised-clinical-trial-on-canine-atopic-dermatitis
#7
Christoph J Klinger, Stefan Hobi, Cornelia Johansen, Hans-Joachim Koch, Karin Weber, Ralf S Mueller
Atopic dermatitis (AD) in dogs is among the most common skin diseases in small animal practice. It is an inflammatory disease based on a genetic predisposition to develop hypersensitivity against environmental and food allergens and typical clinical signs up exposure. Treatment sometimes can be difficult and associated with adverse effects. Previous studies evaluating cholecalciferol as treatment for human AD have shown promising results. With canine AD being a good animal model for its human counterpart, it was hypothesised that cholecalciferol might have beneficial clinical effects in dogs, too...
April 7, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29386679/concentrations-of-calcium-phosphorus-and-vitamin-d-in-human-foods-are-not-different-among-4-food-databases
#8
Mikkyla M W Reid, Adronie Verbrugghe, Anna K Shoveller
Concentrations of calcium, phosphorus, and vitamin D in similar foods were compared over 4 international food databases and results demonstrated no differences ( P > 0.05) among the values from the databases. Therefore, the use of different food databases for homemade dog and cat diet formulation should not affect the final diet nutrient density prediction for these key nutrients.
February 2018: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/29316985/cognitive-enhancement-in-old-dogs-from-dietary-supplementation-with-a-nutrient-blend-containing-arginine-antioxidants-b-vitamins-and-fish-oil
#9
Yuanlong Pan, Adam D Kennedy, Thomas J Jönsson, Nortan W Milgram
This study focused on the hypothesis that cognitive decline in aged dogs could be attenuated by dietary supplementation with a nutrient blend consisting of antioxidants, B vitamins, fish oil and l-arginine, referred to hereafter as the Brain Protection Blend (BPB). Baseline cognitive assessment before the start of treatment was used to establish cognitively equivalent control (10·464+2·33 kg) and treatment (12·118+3·386 kg) groups of aged dogs between 9·1 and 11·5 years of age and with body condition score of 5...
February 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29302100/dietary-imbalances-in-a-large-breed-puppy-leading-to-compression-fractures-vitamin-d-deficiency-and-suspected-nutritional-secondary-hyperparathyroidism
#10
Moran Tal, Jacqueline M Parr, Shawn MacKenzie, Adronie Verbrugghe
A 6-month-old intact female giant schnauzer dog fed a nutritionally unbalanced homemade diet was evaluated because of a 1-month history of lameness and difficulty walking. Abnormalities identified on ancillary tests, in conjunction with the dog's clinical improvement following diet change, suggested a diagnosis of vitamin D deficiency and nutritional secondary hyperparathyroidism. This report underlines the importance of appropriate feeding management, especially during the vulnerable growth phase.
January 2018: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/29178579/vitamin-d-receptor-expression-in-canine-mammary-gland-and-relationship-with-clinicopathological-parameters-and-progesterone-oestrogen-receptors
#11
R Sánchez-Céspedes, M D Fernández-Martínez, A Raya, C Pineda, I López, Y Millán
The vitamin D receptor (VDR) belongs to the nuclear class II receptor family. VDR is a ligand transcription factor and mediates the actions of calcitriol, the active product of vitamin D synthesis. Nowadays, it is known that the biological actions of calcitriol include the capacity to modulate cancer features, such as proliferation and differentiation, apoptosis, angiogenesis, invasion and metastasis. VDR expression has been demonstrated in human breast cancer and vitamin D has emerged as a promising targeted therapy...
March 2018: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/29172936/previously-undescribed-vitamin-d-c-3-epimer-occurs-in-substantial-amounts-in-the-blood-of-cats
#12
Megan C Sprinkle, Sarah E Hooper, Robert C Backus
Objectives The aim of this report is to describe the identification of a novel vitamin D metabolite, a C-3, alpha-epimer of 25-hydroxycholecalciferol (3-epi-25(OH)D3 ), in serum and plasma extracts of cat blood and compare its abundance in cat, dog and rat serum to 25-hydroxycholecalciferol (25(OH)D3 ), a conventional marker of vitamin D status. Methods Serum 25(OH)D3 and 3-epi-25(OH)D3 concentrations were measured in healthy cohorts of cats (n = 8), dogs (n = 8) and rats (n = 17) using validated reverse and normal-phase high-performance liquid chromatography methods...
February 2018: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/29171025/25-hydroxy-vitamin-d3-serum-concentration-in-dogs-with-acute-polyradiculoneuritis-compared-to-matched-controls
#13
E J Laws, A Kathrani, T R Harcourt-Brown, N Granger, J H Rose
OBJECTIVES: To determine if dogs with acute polyradiculoneuritis have lower serum 25-hydroxy vitamin D3 concentration compared to a control group of dogs with idiopathic epilepsy. MATERIALS AND METHODS: Retrospective case-control study of 21 dogs with acute canine polyradiculoneuritis and 21 control dogs with idiopathic epilepsy matched for year and season of presentation from a referral hospital population in the UK. Serum concentration of 25-hydroxy vitamin D3 was compared between groups using Student's t-test...
April 2018: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/29152252/effect-of-fish-oil-and-vitamin-e-on-sperm-lipid-peroxidation-in-dogs
#14
Analía Lorena Risso, Francisco J Pellegrino, Yanina Corrada, Mónica Marmunti, Mariana Gavazza, Alejandro Palacios, Alejandro E Relling
The objective was to evaluate the effects of dietary fish oil (FO) and vitamin E (VE) supplementation on sperm sensitivity to lipid peroxidation (LP) in dogs. Using an incomplete replicate 3 × 3 Latin square design, five dogs were allocated into three groups. One of the squares was incomplete and had two dogs that were used with three treatments. The dogs were assigned to three different treatments, fed a control diet of balanced commercial food (control group; CG), control diet supplemented with 54 mg FO/kg body weight0·75 per d (FO group; FG) and FO plus 400 mg VE per d (FO and VE group; FEG) for 60 d...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29152235/serum-25-hydroxyvitamin-d-3-and-24-r-25-dihydroxyvitamin-d-3-concentrations-in-adult-dogs-are-more-substantially-increased-by-oral-supplementation-of-25-hydroxyvitamin-d-3-than-by-vitamin-d-3
#15
Lauren R Young, Robert C Backus
We previously found a weak response in serum 25-hydroxyvitamin D3 (25(OH)D3 ) concentrations when dogs were supplemented with oral vitamin D3 (D3 ). In the present study, we determined the relative potency of oral 25(OH)D3 compared with D3 for increasing vitamin D status in dogs with low serum 25(OH)D concentrations. Four male and three female, 4-year-old, intact, lean, genetically related, Chinese-crested/beagle dogs were studied in a randomised, single cross-over trial. After feeding a low-vitamin D diet (<4 IU/100 g) for 30 d, four dogs received daily D3 supplementation at 2·3 µg/kg body weight0·75 , while three dogs received a molar equivalency as 25(OH)D3 ...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29134690/faecal-calcium-excretion-does-not-decrease-during-long-term-feeding-of-a-low-calcium-diet-in-adult-dogs
#16
S Schmitt, J Mack, E Kienzle, L G Alexander, P J Morris, A Colyer, B Dobenecker
According to a previous meta-analysis, adult dogs do not notably increase calcium absorption from the gastrointestinal tract when calcium intake is decreased. This results in a negative calcium balance even with a moderate calcium reduction. In this study we wanted to verify (i) whether a negative calcium balance occurs at a calcium intake equivalent to NRC (2006) (Nutrient requirements of dogs and cats, 2006, The National Academies Press, Washington, DC) minimal requirements, and if so (ii) whether the negative calcium balance will persist for up to 6 months on a low-calcium diet...
April 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29042303/changes-in-serum-proteins-in-dogs-with-ehrlichia-canis-infection
#17
Damián Escribano, Hüseyin Cihan, Silvia Martínez-Subiela, Pinar Levent, Meric Kocaturk, Nilüfer Aytug, Jose Joaquin Cerón, Asta Tvarijonaviciute, Zeki Yilmaz
The aim of this study was the identification of proteins differentially represented in the serum proteome of seropositive dogs with (Group 1) and without (Group 2) clinical-pathologic signs consistent with ehrlichiosis compared to healthy control dogs. Serum samples were collected from 20 dogs of various breeds with naturally occurring ehrlichiosis (10 dogs belonged to Group 1 and 10 to Group 2) and 10 healthy dogs. Two-dimensional electrophoresis (2DE) of pooled serum for each of the group of dogs were run in triplicate...
December 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28962851/steroidal-pheromones-and-their-potential-target-sites-in-the-vomeronasal-organ
#18
Rodewald Andrea, Mills Daniel, M Veronika Gebhart, Gustav F Jirikowski
Steroids are important olfactory signals in most mammalian species. The vomeronasal organ has been suspected to be the primary target of pheromones. In rat vomeronasal sensory neurons express steroid binding proteins and nuclear receptors. Some binding globulins were found also in single ciliated cells of the non-sensory vomeronasal epithelium. Immunoelectron microscopy revealed VDR in olfactory microvilli and DPB in apical membrane protrusions of supporting sells within the sensory epithelium. Pilot behavioral studies with dogs showed increased sniffing duration upon exposure to low concentrations of vitamin D while higher concentrations were less effective...
September 26, 2017: Steroids
https://www.readbyqxmd.com/read/28941306/influence-of-various-factors-on-circulating-25-oh-vitamin-d-concentrations-in-dogs-with-cancer-and-healthy-dogs
#19
N Weidner, J P Woods, P Conlon, K A Meckling, J L Atkinson, J Bayle, A J Makowski, R L Horst, A Verbrugghe
BACKGROUND: Low blood 25-hydroxyvitamin D (25(OH)D) concentrations have been associated with cancer in dogs. Little research has examined what other factors may affect 25(OH)D concentrations. OBJECTIVES: (1) To determine whether the presence of cancer (lymphoma, osteosarcoma, or mast cell tumor [MCT]) in dogs is associated with plasma 25(OH)D concentrations and (2) identify other factors related to plasma 25(OH)D concentrations in dogs. ANIMALS: Dogs newly diagnosed with osteosarcoma (n = 21), lymphoma (n = 27), and MCT (n = 21) presented to a tertiary referral oncology center, and healthy, client-owned dogs (n = 23)...
November 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28895868/identification-of-novel-biomarkers-for-treatment-monitoring-in-canine-leishmaniosis-by-high-resolution-quantitative-proteomic-analysis
#20
Silvia Martinez-Subiela, Anita Horvatic, Damian Escribano, Luis Pardo-Marin, Meric Kocaturk, Vladimir Mrljak, Richard Burchmore, Jose J Ceron, Zeki Yilmaz
The objective of this study was to use the Tandem Mass Tag (TMT) isobaric label-based proteomic approach, in order to identify new potential biomarkers for the treatment monitoring of canine leishmaniosis that could not be identified by the use of gel-based techniques. For this purpose serum samples were obtained from 5 clinically diseased dogs before and one month after the treatment of canine leishmaniosis. The non-depleted serum samples were subjected to reduction, alkylation and trypsin digestion, and the resulting peptides were labeled using 6-plex TMT reagents...
September 2017: Veterinary Immunology and Immunopathology
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