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Nemati M, Rostamkhani F, Karbaschi R, Zardooz H. Metabolic Responses to High-Fat Feeding and Chronic Psychological Stress Combination. Endocrinol Diabetes Metab 2024; 7:e487. [PMID: 38867382 PMCID: PMC11168916 DOI: 10.1002/edm2.487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/07/2024] [Accepted: 04/17/2024] [Indexed: 06/14/2024] Open
Abstract
INTRODUCTION High-fat diet (HFD) consumption and being exposed to daily psychological stress, common environmental factors in modern lifestyle, play an important role on metabolic disorders such as glucose homeostasis impairment. The aim of this study was to investigate the effects of high-fat diet (HFD) and psychological stress combination on metabolic response to chronic psychological stress in male rats. METHOD Male Wistar rats were divided into HFD, and normal diet (ND) groups and then into stress and nonstress subgroups. The diets were applied for 5 weeks, and psychological stress was induced for 7 consecutive days. Then, blood samples were taken to measure glucose, insulin, free fatty acids (FFA), and leptin and corticosterone concentrations. Subsequently, glucose-stimulated insulin release from pancreatic isolated islets was assessed. RESULTS HFD did not significantly change fasting plasma glucose, insulin and corticosterone levels, whereas increased plasma leptin (7.05 ± 0.33) and FFA (p < 0.01) levels and impaired glucose tolerance. Additionally, HFD and stress combination induced more profound glucose intolerance associated with increased plasma corticosterone (p < 0.01) and leptin (8.63 ± 0.38) levels. However, insulin secretion from isolated islets did not change in the presence of high-fat diet and/or stress. CONCLUSION HFD should be considered as an intensified factor of metabolic impairments caused by chronic psychological stress.
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Affiliation(s)
- Marzieh Nemati
- Department of Physiology, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
- Endocrinology and Metabolism Research CenterShiraz University of Medical ScienceShirazIran
| | - Fatemeh Rostamkhani
- Department of Biology, College of Basic Sciences, Yadegar‐e‐Imam Khomeini (RAH) BranchIslamic Azad UniversityTehranIran
| | - Roxana Karbaschi
- Faculty of Nursing and MidwiferyShahid Beheshti University of Medical SciencesTehranIran
| | - Homeira Zardooz
- Department of Physiology, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
- Neurophysiology Research CenterShahid Beheshti University of Medical SciencesTehranIran
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Ji Y, Yang Y, Wu Z. Programming of metabolic and autoimmune diseases in canine and feline: linkage to the gut microbiome. Microb Pathog 2023; 185:106436. [PMID: 37913827 DOI: 10.1016/j.micpath.2023.106436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/03/2023]
Abstract
Metabolic and autoimmune disorders have long represented challenging health problems because of their growing prevalence in companion animals. The gut microbiome, made up of trillions of microorganisms, is implicated in multiple physiological and pathological processes. Similar to human beings, the complicated microbiome harbored in the gut of canines and felines emerges as a key factor determining a wide range of normal and disease conditions. Evidence accumulated from recent findings on canine and feline research uncovered that the gut microbiome is actively involved in host metabolism and immunity. Notably, the composition, abundance, activity, and metabolites of the gut microbiome are all elements that shape clinical outcomes concerning metabolism and immune function. This review highlights the implications of the gut microbiome for metabolic disorders (obesity, diabetes, and hepatic lipidosis) and autoimmune diseases (inflammatory bowel disease, osteoarthritis, asthma, and myasthenia gravis) in canine and feline animals, providing novel strategies and therapeutic targets for the prevention and treatment of pet diseases.
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Affiliation(s)
- Yun Ji
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing, 100193, China.
| | - Ying Yang
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing, 100193, China
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing, 100193, China
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Nopparatmaitree M, Bunlue S, Washiraomornlert S, Saenphoom P, Kitpipit W, Chotnipat S. Designer meat production, carcass quality, and hemato-biochemical parameters of broilers fed dietary synbiotic derived from trimmed asparagus by-products combined with probiotic supplementation. J Adv Vet Anim Res 2022; 9:516-526. [PMID: 36382044 PMCID: PMC9597910 DOI: 10.5455/javar.2022.i621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/01/2022] [Accepted: 05/09/2022] [Indexed: 01/25/2023] Open
Abstract
Objective This experiment investigated the effects of synbiotic supplementation produced from probiotics and prebiotics from trimmed asparagus by-products (TABP) on broiler chicken diets in order to yield designer meat production. Materials and Methods A total of 320 one-day-old Ross 308® chicks were randomly allocated to dietary treatments with four replications each (n = 20). The dietary treatments were composed of a control group without supplementation and treatment groups fed with 10, 30, and 50 gm/kg of TABP supplementation in diets combined with 2 gm/kg probiotics. Results The results showed that broilers fed dietary supplementation of TABP with 2 gm/kg had a lower level of total cholesterol and low-density lipoprotein cholesterol in the serum, which reduced the atherogenic indices of the serum, such as cardiac risk ratio and atherogenic coefficient (p < 0.05). In addition, the cholesterol content and the fatty acid profile of breast meat, including palmitic acid, oleic acid, saturated fatty acid, and omega 9 levels, also declined with the increasing levels of TABP inclusion (p < 0.05). Moreover, the supplementation of TABP in diets caused a decline in the atherogenic and thrombogenicity indices and a rise in Δ-9 desaturase (16) index and hypocholesterolemic to the hypercholesterolemic ratio of meat (p < 0.05). Conclusion Synbiotic supplementation of up to 30 gm/kg TABP combined with 2 gm/kg probiotics in the chicken diet can potentially be utilized for the production of designer meat.
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Affiliation(s)
| | - Sittichai Bunlue
- Faculty of Animal Science and Agricultural Technology, Silpakorn University, Phetchaburi, Thailand
| | - Silchai Washiraomornlert
- Faculty of Animal Science and Agricultural Technology, Silpakorn University, Phetchaburi, Thailand
| | - Pornpan Saenphoom
- Faculty of Animal Science and Agricultural Technology, Silpakorn University, Phetchaburi, Thailand
| | - Warangkana Kitpipit
- Akkhraratchakumari Veterinary College, Walailak University, Nakhon Si Thammarat, Thailand
- One Health Research Center, Walailak University, Nakhon Si Thammarat, Thailand
- Food Technology and Innovation Research Center of Excellence, Walailak University, Nakhon Si Thammarat, Thailand
| | - Soranot Chotnipat
- Faculty of Animal Science and Agricultural Technology, Silpakorn University, Phetchaburi, Thailand
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Priya Rani M, Gokul Raj MR, Bahuleyan Rameshkumar K. Garcinia gummi-gutta seeds: a novel source of edible oils. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3475-3479. [PMID: 34796508 DOI: 10.1002/jsfa.11671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 10/06/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Edible oils are important for human nutrition and health. The demand for edible oils is increasing globally and the situation warrants the identification of new natural sources of oils that have been subjected to proper quality and safety evaluation. Garcinia gummi-gutta is a widely cultivated fruit crop in Kerala, south India. The fruit rinds are the useful part, while the seeds are treated as waste material. This study evaluated the composition, physico-chemical properties, and toxicity of the seed oil with a view to considering its utility in the food sector. RESULTS The yield of oil obtained from the seeds of Garcinia gummi-gutta through hexane extraction was 335.30 g kg-1 . The physico-chemical parameters of the oil were determined through nuclear magnetic resonance (NMR) studies. The values agree well with those of conventional edible oils. Stearic acid, a saturated fatty acid, was identified as the main component (55.39%) followed by monounsaturated oleic acid (40.22%) through gas chromatography-mass spectrometry (GC-MS) analysis of fatty acid methyl esters (FAMEs). Preliminary in vivo acute oral toxicity studies and acute dermal toxicity studies on female Wistar rats, and dermal irritation studies on New Zealand white male rabbits showed no morbidity, mortality, appreciable change in the bodyweight, or clinical signs of dermal responses. CONCLUSIONS The results suggest that the seeds of G. gummi-gutta are a rich source of edible oil. The presence of stearic acid, a stable fatty acid, as the major constituent suggests that the oil could be suitable for use in value-added food products such as chocolates. Preliminary toxicological studies also recommend the use of the oil in the food and cosmetics sectors. © 2021 Society of Chemical Industry.
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Affiliation(s)
- M Priya Rani
- Phytochemistry and Phytopharmacology Division, KSCSTE-Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram, India
| | - M R Gokul Raj
- Phytochemistry and Phytopharmacology Division, KSCSTE-Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram, India
| | - K Bahuleyan Rameshkumar
- Phytochemistry and Phytopharmacology Division, KSCSTE-Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram, India
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Kobayashi Y, Nakamura T, Yonezawa T, Kobayashi K, Murata T. The profile of urinary lipid metabolites in cats with bacterial cystitis. J Vet Med Sci 2021; 83:1977-1981. [PMID: 34744098 PMCID: PMC8762420 DOI: 10.1292/jvms.21-0433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Bacterial cystitis is one of the feline lower urinary tract diseases (FLUTDs). Polyunsaturated fatty acids, such as arachidonic acid (ARA), docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA), are oxidized into various lipid mediators that modulate inflammation. Since the profile of lipid metabolites excreted in urine is useful for assessing inflammatory body conditions, we analyzed 126 types of urinary lipid metabolites in cats with bacterial cystitis. Using LC-MS/MS, we found that the levels of 11 metabolites were higher in the urine of cystitis cats than in the urine of healthy cats. In detail, the urinary levels of ARA, EPA, and DHA and eight of their metabolites were increased in cystitis cats. Focusing on the lipid oxidation pathway, the urinary levels of four cyclooxygenase-, three lipoxygenase-, and one cytochrome p450-dependent oxidated metabolites were increased in bacterial cystitis. These urinary lipid profiles can provide some insight into the pathology and future diagnosis of bacterial cystitis.
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Affiliation(s)
- Yui Kobayashi
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Tatsuro Nakamura
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Koji Kobayashi
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Takahisa Murata
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Effects of silybin supplementation on nutrient digestibility, hematological parameters, liver function indices, and liver-specific mi-RNA concentration in dogs. BMC Vet Res 2021; 17:228. [PMID: 34174886 PMCID: PMC8235871 DOI: 10.1186/s12917-021-02929-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 05/24/2021] [Indexed: 12/01/2022] Open
Abstract
Background Hepatopathies are an important group of disorders in dogs where proper nutritional care is crucial. Supplementation with a hepatoprotectant like silybin can improve liver function and should not interfere with nutrient digestibility. The purpose of this study was to investigate the effect of both pure silybin and commercial hepatoprotectant on nutrients digestibility, liver function indices and health status in healthy dogs (EXP1). Moreover, the second experiment (EXP2) investigated the effect of commercial hepatoprotectant on liver function tests and liver-associated miRNAs concentration in dogs with idiopathic liver disorder. Results Nutrient digestibility was not affected by treatment in EXP1. Supplementation did alter the serum fatty acid profile, with no clinical relevance. The levels of liver markers such as ALT, AST and GGT significantly decreased. In EXP2, supplementation with commercial hepatoprotectant containing silybin improved liver function tests. A decrease was observed in liver serum markers such as ALT, AST and miR122 concentration. Conclusions EXP1 confirmed that silybin (whether pure or as a commercial hepatoprotectant) does not interfere with digestion which subsequently exerts no detrimental effect on dogs’ health and metabolism. In EXP2, dietary supplementation with commercial hepatoprotectant containing silybin resulted in a decreased activity of serum liver markers, accompanied by a decrease in the concentration of liver-specific miRNA molecules. Liver function indices were consequently improved. Silybin supplementation can thus serve as an effective therapeutical tool in dogs with hepatopathies. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-021-02929-3.
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Nogoy KMC, Kim HJ, Lee DH, Smith SB, Seong HA, Choi SH. Oleic acid in Angus and Hanwoo (Korean native cattle) fat reduced the fatty acid synthase activity in rat adipose tissues. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2021; 63:380-393. [PMID: 33987612 PMCID: PMC8071735 DOI: 10.5187/jast.2021.e4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/03/2020] [Accepted: 10/20/2020] [Indexed: 12/04/2022]
Abstract
This study aimed to determine the blood lipid profiles, fatty acid composition,
and lipogenic enzyme activities in rat adipose tissues as affected by the Angus
beef fat (ABF) and Hanwoo beef fat (HBF) containing high oleic acid (OA)
content. We assigned 60 Sprague Dawley rats with a mean bodyweight of 249
± 3.04 g to three groups (n = 20 each) to receive diets containing 7%
coconut oil (CON), 7% ABF, or 7% HBF. The OA content was highest in the HBF
(45.23%) followed by ABF (39.51%) and CON (6.10%). The final body weight of the
HBF-fed group was significantly increased, probably due to increased feed
intake, indicating the palatability of the diet. The HBF and ABF significantly
increased high-density lipoprotein cholesterol (HDL-C), decreased triglyceride
(TG) and total cholesterol (TC) levels, and also tended to attenuate glutamic
oxaloacetic transaminase (GOT) and glutamic pyruvic transaminase (GPT) levels in
the bloodstream of the rats compared to CON. As compared to CON, lauric,
myristic, and palmitic acids were significantly lower, and those of OA and
α-linolenic acid (ALA) were significantly higher in the adipose tissues
of HBF and ABF-fed groups. The HBF and ABF also reduced lipogenesis as induced
by depleted fatty acid synthase (FAS) activity in rat adipose tissues.
Nevertheless, between the two fats, HBF showed high feed intake due to its high
palatability but reduced lipogenic enzyme activity, specifically that of FAS,
and increased HDL-C, decreased TC and TG levels in the bloodstream, reduced
saturated fatty acids (SFA), and increased oleic and ALA contents in rat adipose
tissues indicating that HBF consumption does not pose significant risks of
cardiovascular disease.
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Affiliation(s)
| | - Hyoun Ju Kim
- National Institute of Animal Science, Wanju 55365, Korea
| | - Dong Hoon Lee
- Department of Biosystems Engineering, Chungbuk National University, Cheongju 28644, Korea
| | - Stephen B Smith
- Department of Animal Science, Texas A&M University, College Station, Texas 77843, USA
| | - Hyun A Seong
- Department of Biochemistry, Chungbuk National University, Cheongju 28644, Korea
| | - Seong Ho Choi
- Department of Animal Science, Chungbuk National University, Cheongju 28644, Korea
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Del Chicca F, Richter H, Steger GL, Salesov E, Reusch CE, Kircher PR. Sample strategies for quantification of hepatic fat fraction mean MRI in healthy cats during body weight gain. PLoS One 2020; 15:e0241905. [PMID: 33180808 PMCID: PMC7660519 DOI: 10.1371/journal.pone.0241905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 10/22/2020] [Indexed: 11/26/2022] Open
Abstract
Hepatic fat fraction (HFF) can be non-invasively estimated with magnetic resonance imaging (MRI) multiple echo gradient recalled echo (GRE) sequence. The aim of this study was to test different methods of sampling strategies to quantify the HFF in healthy cats during body weight gain. Twelve healthy adult male cats were examined in a 3 Tesla MRI unit. Sequences included morphological images, and multiple echo GRE sequence. Cats were scanned at the beginning of the study and twice, each 20 weeks apart during body weight gain. HFF was calculated with 5 different methods of sampling on the multiple echo GRE sequence with different number, size and position of regions of interest (ROIs) and by 2 operators. Results indicated that HFF increased with increasing body weight, and the increase was appreciated with all the 5 methods. There was overall excellent agreement (interclass correlation coefficient = 0.820 (95% confidence interval:0.775–0.856)) between the 2 operators. HFF in the left lateral hepatic lobe was lower than in the other analyzed lobes. HFF measured on large free-hand drawn ROIs was higher than HFF measured with smaller ROIs size. This study proves that different sampling methods for quantification of HFF on multiple echo GRE sequence have overall excellent repeatability and ability to appreciate increased HFF.
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Affiliation(s)
- Francesca Del Chicca
- Clinic for Diagnostic Imaging, Department of Diagnostics and Clinical Services, Vetsuisse-Faculty Zurich, Zurich, Switzerland
- * E-mail:
| | - Henning Richter
- Clinic for Diagnostic Imaging, Department of Diagnostics and Clinical Services, Vetsuisse-Faculty Zurich, Zurich, Switzerland
| | - Gian-Luca Steger
- Clinic for Diagnostic Imaging, Department of Diagnostics and Clinical Services, Vetsuisse-Faculty Zurich, Zurich, Switzerland
| | - Elena Salesov
- Clinic of Small Animal Internal Medicine, Vetsuisse-Faculty Zurich, Zurich, Switzerland
| | - Claudia E. Reusch
- Clinic of Small Animal Internal Medicine, Vetsuisse-Faculty Zurich, Zurich, Switzerland
| | - Patrick R. Kircher
- Clinic for Diagnostic Imaging, Department of Diagnostics and Clinical Services, Vetsuisse-Faculty Zurich, Zurich, Switzerland
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Gottlieb S, Rand J, Anderson ST, Morton JM, Dias DA, Boughton BA, Roessner U, Ramadan Z. Metabolic Profiling of Diabetic Cats in Remission. Front Vet Sci 2020; 7:218. [PMID: 32500084 PMCID: PMC7242727 DOI: 10.3389/fvets.2020.00218] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/01/2020] [Indexed: 12/25/2022] Open
Abstract
Background: The majority of diabetic cats in remission have abnormal glucose tolerance, and approximately one third relapse within 1 year. Greater understanding of the metabolic characteristics of diabetic cats in remission, and predictors of relapse is required to effectively monitor and manage these cats. Objectives: To identify and compare differences in plasma metabolites between diabetic cats in remission and healthy control cats using a metabolomics approach. Secondly, to assess whether identified metabolites are predictors of diabetic relapse. Animals: Twenty cats in diabetic remission for a median of 101 days, and 22 healthy matched control cats. Methods: Cats were admitted to a clinic, and casual blood glucose was recorded. After a 24 h fast, blood glucose concentration was measured, then a blood sample was taken for metabolomic (GCMS and LCMS) analyses. Three hours later, a simplified intravenous glucose tolerance test (1 g glucose/kg) was performed. Cats were monitored for diabetes relapse for at least 9 months (270 days) after baseline testing. Results: Most cats in remission continued to display impaired glucose tolerance. Concentrations of 16 identified metabolites differed (P ≤ 0.05) between remission and control cats: 10 amino acids and stearic acid (all lower in remission cats), and glucose, glycine, xylitol, urea and carnitine (all higher in remission cats). Moderately close correlations were found between these 16 metabolites and variables assessing glycaemic responses (most |r| = 0.31 to 0.69). Five cats in remission relapsed during the study period. No metabolite was identified as a predictor of relapse. Conclusion and clinical importance: This study shows that cats in diabetic remission have abnormal metabolism.
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Affiliation(s)
- Susan Gottlieb
- The Cat Clinic, Brisbane, QLD, Australia.,School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
| | - Jacquie Rand
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia.,Australian Pet Welfare Foundation, Kenmore, QLD, Australia
| | - Stephen T Anderson
- School of Biomedical Sciences, The University of Queensland, St. Lucia, QLD, Australia
| | - John Murray Morton
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia.,Jemora Pty Ltd, Geelong, VIC, Australia
| | - Daniel A Dias
- School of Health and Biomedical Sciences, Discipline of Laboratory Medicine, RMIT University, Bundoora, VIC, Australia
| | - Berin A Boughton
- Metabolomics Australia, School of BioSciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Ute Roessner
- Metabolomics Australia, School of BioSciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Ziad Ramadan
- Nestlé Purina Research, St. Louis, MO, United States
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Haaker MW, Kruitwagen HS, Vaandrager AB, Houweling M, Penning LC, Molenaar MR, van Wolferen ME, Oosterhoff LA, Spee B, Helms JB. Identification of potential drugs for treatment of hepatic lipidosis in cats using an in vitro feline liver organoid system. J Vet Intern Med 2019; 34:132-138. [PMID: 31830357 PMCID: PMC6979087 DOI: 10.1111/jvim.15670] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 11/12/2019] [Indexed: 01/18/2023] Open
Abstract
Background Hepatic lipidosis is increasing in incidence in the Western world, with cats being particularly sensitive. When cats stop eating and start utilizing their fat reserves, free fatty acids (FFAs) increase in blood, causing an accumulation of triacylglycerol (TAG) in the liver. Objective Identifying potential new drugs that can be used to treat hepatic lipidosis in cats using a feline hepatic organoid system. Animals Liver organoids obtained from 6 cats. Methods Eight different drugs were tested, and the 2 most promising were further studied using a quantitative TAG assay, lipid droplet staining, and qPCR. Results Both T863 (a diacylglycerol O‐acyltransferase 1 [DGAT1] inhibitor) and 5‐aminoimidazole‐4‐carboxamide 1‐β‐D‐ribofuranoside (AICAR; an adenosine monophosphate kinase activator) decreased TAG accumulation by 55% (P < .0001) and 46% (P = .0003), respectively. Gene expression of perilipin 2 (PLIN2) increased upon the addition of FFAs to the medium and decreased upon treatment with AICAR but not significantly after treatment with T863. Conclusions and Clinical Importance Two potential drugs useful in the treatment of hepatic lipidosis in cats were identified. The drug T863 inhibits DGAT1, indicating that DGAT1 is the primary enzyme responsible for TAG synthesis from external fatty acids in cat organoids. The drug AICAR may act as a lipid‐lowering compound via decreasing PLIN2 mRNA. Liver organoids can be used as an in vitro tool for drug testing in a species‐specific system and provide the basis for further clinical testing of drugs to treat steatosis.
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Affiliation(s)
- Maya W Haaker
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Hedwig S Kruitwagen
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Arie B Vaandrager
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Martin Houweling
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Louis C Penning
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Martijn R Molenaar
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Monique E van Wolferen
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Loes A Oosterhoff
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Bart Spee
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - J Bernd Helms
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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11
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Else PL. The highly unnatural fatty acid profile of cells in culture. Prog Lipid Res 2019; 77:101017. [PMID: 31809755 DOI: 10.1016/j.plipres.2019.101017] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 10/02/2019] [Accepted: 10/25/2019] [Indexed: 02/06/2023]
Abstract
The fatty acid profile of cells in culture are unlike those of natural cells with twice the monounsaturated (MUFA) and half the polyunsaturated fatty acids (PUFA) level (Mol%). This is not due to cell lines primarily being derived from cancers but is due to limited access to lipid and an inability to make PUFA de novo as vertebrate cells. Classic culture methods use media with 10% serum (the only exogenous source of lipid). Fetal bovine serum (FBS), the serum of choice has a low level of lipid and cholesterol compared to other sera and at 10% of media provides 2-3% of the fatty acid and cholesterol, 1% of the PUFA and 0.3% of the essential fatty acid linoleic acid (18:2n-6) available to cells in the body. Since vertebrate cell lines cannot make PUFA they synthesise MUFA, offsetting their PUFA deficit and reducing their fatty acid diversity. Stem and primary cells in culture appear to be similarly affected, with a rapid loss of their natural fatty acid compositions. The unnatural lipid composition of cells in culture has substantial implications for examining natural stems cell in culture, and for investigations of cellular mechanisms using cell lines based on the pervasive influence of fats.
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Affiliation(s)
- Paul L Else
- School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia; Illawarra Health and Medical Research Institute (IHMRI), Wollongong, NSW 2522, Australia.
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12
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Brenes-Soto A, Dierenfeld ES, Bosch G, Hendriks WH, Janssens GPJ. Gaining insights in the nutritional metabolism of amphibians: analyzing body nutrient profiles of the African clawed frog, Xenopus laevis. PeerJ 2019; 7:e7365. [PMID: 31410305 PMCID: PMC6689220 DOI: 10.7717/peerj.7365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 06/27/2019] [Indexed: 01/22/2023] Open
Abstract
Whole bodies of Xenopus laevis (n = 19) were analysed for chemical composition and morphometrics. The nutrient profile (macronutrients, amino acids, fatty acids and minerals) was evaluated by sex; interactions among variables with body weights and lengths, and comparisons made with different species of marine and fresh water fish. Significant differences were found in morphometric measurements, water content, several minerals and fatty acids between sexes of X. laevis. Amino acid profiles differed in methionine, proline and cysteine, which could underlie different metabolic pathways in frogs when compared to fish. In addition, fatty acid profiles revealed more monounsaturated and n − 6 polyunsaturated fatty acids in frogs than in fish, more similar to values reported for terrestrial than aquatic vertebrates. Important interactions were also found between body measurements and fat, calcium, and phosphorus, as well as between essential and non-essential amino acids. The results indicate that frogs might have particular biochemical pathways for several nutrients, dependent on sex and linked to body weight, which ultimately could reflect specific nutrient needs.
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Affiliation(s)
- Andrea Brenes-Soto
- Laboratory of Animal Nutrition, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.,Animal Science Department, University of Costa Rica, Ciudad Universitaria Rodrigo Facio, San Jose, Costa Rica
| | | | - Guido Bosch
- Animal Nutrition Group, Wageningen University, Wageningen, The Netherlands
| | - Wouter H Hendriks
- Animal Nutrition Group, Wageningen University, Wageningen, The Netherlands
| | - Geert P J Janssens
- Laboratory of Animal Nutrition, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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13
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Martorelli Di Genova B, Wilson SK, Dubey JP, Knoll LJ. Intestinal delta-6-desaturase activity determines host range for Toxoplasma sexual reproduction. PLoS Biol 2019; 17:e3000364. [PMID: 31430281 PMCID: PMC6701743 DOI: 10.1371/journal.pbio.3000364] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 07/17/2019] [Indexed: 01/17/2023] Open
Abstract
Many eukaryotic microbes have complex life cycles that include both sexual and asexual phases with strict species specificity. Whereas the asexual cycle of the protistan parasite Toxoplasma gondii can occur in any warm-blooded mammal, the sexual cycle is restricted to the feline intestine. The molecular determinants that identify cats as the definitive host for T. gondii are unknown. Here, we defined the mechanism of species specificity for T. gondii sexual development and break the species barrier to allow the sexual cycle to occur in mice. We determined that T. gondii sexual development occurs when cultured feline intestinal epithelial cells are supplemented with linoleic acid. Felines are the only mammals that lack delta-6-desaturase activity in their intestines, which is required for linoleic acid metabolism, resulting in systemic excess of linoleic acid. We found that inhibition of murine delta-6-desaturase and supplementation of their diet with linoleic acid allowed T. gondii sexual development in mice. This mechanism of species specificity is the first defined for a parasite sexual cycle. This work highlights how host diet and metabolism shape coevolution with microbes. The key to unlocking the species boundaries for other eukaryotic microbes may also rely on the lipid composition of their environments as we see increasing evidence for the importance of host lipid metabolism during parasitic lifecycles. Pregnant women are advised against handling cat litter, as maternal infection with T. gondii can be transmitted to the fetus with potentially lethal outcomes. Knowing the molecular components that create a conducive environment for T. gondii sexual reproduction will allow for development of therapeutics that prevent shedding of T. gondii parasites. Finally, given the current reliance on companion animals to study T. gondii sexual development, this work will allow the T. gondii field to use of alternative models in future studies.
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Affiliation(s)
- Bruno Martorelli Di Genova
- Department of Medical Microbiology and Immunology, University of Wisconsin–Madison, Madison, Wisconsin, United States of America
| | - Sarah K. Wilson
- Department of Medical Microbiology and Immunology, University of Wisconsin–Madison, Madison, Wisconsin, United States of America
| | - J. P. Dubey
- Animal Parasitic Diseases Laboratory, Animal and Natural Resources Institute, United States Department of Agriculture, Agricultural Research Service, Beltsville, Maryland, United States of America
| | - Laura J. Knoll
- Department of Medical Microbiology and Immunology, University of Wisconsin–Madison, Madison, Wisconsin, United States of America
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14
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Iwazaki E, Nade T, Kimura N. Effects of overfeeding on the fatty acid profile and stearoyl-CoA desaturase-1 indices in the liver and subcutaneous adipose tissue in cats. J Vet Med Sci 2019; 81:1080-1085. [PMID: 31217402 PMCID: PMC6715916 DOI: 10.1292/jvms.19-0105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
To evaluate the effect of overfeeding on fatty acid distribution and metabolism,
especially stearoyl-CoA desaturase-1 (SCD-1) indices, 8 cats in the experimental and
control groups (4 per group) were evaluated in this study. The experiments involved
feeding the experimental group cats twice their daily energy requirement with a commercial
diet for 4 weeks. The control group was fed the estimated daily energy requirement with
the same diet. Body weight, feline body mass index, body condition score, several zoometry
measurements, and plasma metabolites/hepatic injury markers were measured in all the cats
before and after the experiment. In addition, the fatty acid profiles in the liver and
subcutaneous adipose tissue were measured after the experiment. After 4 weeks of
overfeeding, the experimental group demonstrated significant increases in hepatic C18:1,
plasma triglyceride, and nonesterified fatty acid (NEFA) concentrations and in alanine
aminotransferase activity. Furthermore, hepatic SCD-1 indices were positively correlated
with body weight, feline body mass index, body condition score, and plasma NEFA
concentration, although subcutaneous adipose tissue did not demonstrate any increase in
SCD-1 indices in this study. The increase in hepatic SCD-1 indices might be enhanced by
the inflow of plasma NEFA into the liver, and NEFA toxicity might stimulate C18:1
synthesis by SCD-1.
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Affiliation(s)
- Eiji Iwazaki
- Section of Academic Research, Department of Research and Development, Nippon Pet Food Co., Ltd., 2-2-4, Higashishinagawa, Shinagawa-ku, Tokyo 140-0002, Japan
| | - Toshihiro Nade
- Faculty of Regional Innovation, University of Miyazaki, 1-1, Gakuenkibanadainishi, Miyazaki-shi, Miyazaki 889-2192, Japan
| | - Nobuhiro Kimura
- Department of Animal Science, Nippon Veterinary and Life Science University, 1-7-1, Kyounanchou, Musashino-shi, Tokyo 180-8602, Japan
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15
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Yang YM, Fukui M, Wang Z, Miao F, Karriker MJ, Seki E. Interventional Potential of Recombinant Feline Hepatocyte Growth Factor in a Mouse Model of Non-alcoholic Steatohepatitis. Front Endocrinol (Lausanne) 2018; 9:378. [PMID: 30083132 PMCID: PMC6064873 DOI: 10.3389/fendo.2018.00378] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 06/22/2018] [Indexed: 12/12/2022] Open
Abstract
Background and Aims: Hepatocyte growth factor (HGF) is a multifunctional pleiotropic protein involved in tissue regeneration, protection, angiogenesis, anti-inflammatory and anti-fibrotic responses, and tumorigenesis, through binding to its receptor MET. Recombinant HGF protein has been shown to mitigate various liver disease models, such as alcohol-induced liver injury, hepatic ischemia-reperfusion injury, and fibrosis. This study aimed to investigate the anti-inflammatory, anti-fibrotic, and anti-lipogenic effects of exogenous administration of feline HGF on a non-alcoholic steatohepatitis (NASH) mouse model. Methods: Wild-type C57BL/6 mice were fed a choline-deficient amino acid defined (CDAA) diet for 3 weeks to create the mouse model of NASH, which displays hepatic steatosis, inflammation, injury, and very mild fibrosis. One mg/kg of recombinant feline HGF was administered intravenously daily in the last 7 days of the total 3 weeks of CDAA diet feeding. Then, hepatic steatosis, inflammation, injury, and fibrogenic gene expression was examined. Results: After 3 weeks of a CDAA diet-feeding, the vehicle-treated mice exhibited evident deposition of lipid droplets in hepatocytes, inflammatory cell infiltration, and hepatocyte ballooning along with increased serum ALT levels whereas recombinant HGF-treated mice showed reduced hepatic steatosis, inflammation, and ballooned hepatocytes with a reduction of serum ALT levels. Recombinant HGF administration promoted hepatocyte proliferation. Increased hepatic lipid accumulation was accompanied by elevated expression of lipogenesis genes Fasn and Dgat1 in vehicle-treated mice. In HGF-treated mice, these genes were reduced with a decrease of lipid accumulation in the liver. Consistent with the anti-inflammatory property of HGF, augmented macrophage infiltration and upregulation of chemokines, Cxcl1, Ccl2, and Ccl5 in the CDAA diet fed mice, were suppressed by the addition of the HGF treatment. Finally, we examined the fibrotic response. The vehicle-treated mice had mild fibrosis with upregulation of Col1a1, Acta2, Timp1, Tgfb1, and Serpine1 expression. Recombinant HGF treatment significantly suppressed fibrogenic gene expression and collagen deposition in the liver. Conclusion: Recombinant feline HGF treatment suppressed the progression of NASH in a CDAA diet feeding mouse model.This suggests that recombinant HGF protein has therapeutic potential for NASH.
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Affiliation(s)
- Yoon Mee Yang
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Masato Fukui
- Veterinary Medical Center–San Diego, University of California, San Diego, San Diego, CA, United States
| | - Zhijun Wang
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Fiona Miao
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Margo J. Karriker
- Veterinary Medical Center–San Diego, University of California, San Diego, San Diego, CA, United States
| | - Ekihiro Seki
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Division of Gastroenterology, Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, United States
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- *Correspondence: Ekihiro Seki
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16
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Rückert C, Braun C, Vervuert I. [Evaluation of nutritional characteristics of commercial canned cat diets]. TIERAERZTLICHE PRAXIS AUSGABE KLEINTIERE HEIMTIERE 2017; 45:219-225. [PMID: 28765866 DOI: 10.15654/tpk-170029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 03/27/2017] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To evaluate commercial complete canned cat foods according to their composition, labeling and nutritional characteristics. MATERIALS AND METHODS A total of 21 commercial complete canned compound feeds for adult cats were analyzed for crude nutrients, minerals, vitamins, selected amino acids and taurine. The analyzed parameters were compared to the internal set of standards of the European Pet Food Industry Federation (FEDIAF). The energy content was calculated and compared with the labeled recommendations regarding the amounts of diet that should be fed. Analyzed nutrients were compared with the labeled nutrients according to the regulations of the EU food and feed law (directive EU regulation 767/2009). RESULTS In many cases, the labeled feeding protocols did not match the calculated daily energy requirements. In eight complete foods, the recommended daily feed amounts were underestimated and four recommendations exceeded energy requirements of adult cats. In 12 complete foods, the calcium and phosphorus contents were threefold higher than the respective requirement. In 16 of 21 complete foods, substantial discrepancies were observed between the recommendations and the analyzed trace elements. In particular, selenium contents exceeded the selenium requirement more than threefold. The vitamin, arginine and taurine contents showed no significant discrepancies to the recommendations. With respect to the labeled nutrients, there were only minor deviations from the regulations of the European law. CONCLUSION AND CLINICAL RELEVANCE In general, healthy adult cats are adequately supplied with energy and nutrients when feeding commercial canned complete diets for cats. In cases of body weight loss or gain, the labelled feed amounts should be questioned. The high phosphorus contents are an issue of concern, because a high phosphorus intake can potentially increase the risk for urinary stones and particularly for older cats the risk for renal insufficiency. Furthermore, it is recommended to decrease the high selenium levels by the reduction of selenium-rich feed materials such as offal.
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Affiliation(s)
| | | | - Ingrid Vervuert
- PD Dr. med. vet. Ingrid Vervuert, Institut für Tierernährung, Ernährungsschäden und Diätetik, der Universität Leipzig, An den Tierklinken 9, 04103 Leipzig, E-Mail:
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17
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Kruitwagen HS, Oosterhoff LA, Vernooij IGWH, Schrall IM, van Wolferen ME, Bannink F, Roesch C, van Uden L, Molenaar MR, Helms JB, Grinwis GCM, Verstegen MMA, van der Laan LJW, Huch M, Geijsen N, Vries RG, Clevers H, Rothuizen J, Schotanus BA, Penning LC, Spee B. Long-Term Adult Feline Liver Organoid Cultures for Disease Modeling of Hepatic Steatosis. Stem Cell Reports 2017; 8:822-830. [PMID: 28344000 PMCID: PMC5390114 DOI: 10.1016/j.stemcr.2017.02.015] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 02/17/2017] [Accepted: 02/17/2017] [Indexed: 12/20/2022] Open
Abstract
Hepatic steatosis is a highly prevalent liver disease, yet research is hampered by the lack of tractable cellular and animal models. Steatosis also occurs in cats, where it can cause severe hepatic failure. Previous studies demonstrate the potential of liver organoids for modeling genetic diseases. To examine the possibility of using organoids to model steatosis, we established a long-term feline liver organoid culture with adult liver stem cell characteristics and differentiation potential toward hepatocyte-like cells. Next, organoids from mouse, human, dog, and cat liver were provided with fatty acids. Lipid accumulation was observed in all organoids and interestingly, feline liver organoids accumulated more lipid droplets than human organoids. Finally, we demonstrate effects of interference with β-oxidation on lipid accumulation in feline liver organoids. In conclusion, feline liver organoids can be successfully cultured and display a predisposition for lipid accumulation, making them an interesting model in hepatic steatosis research.
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Affiliation(s)
- Hedwig S Kruitwagen
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands.
| | - Loes A Oosterhoff
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Ingrid G W H Vernooij
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Ingrid M Schrall
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Monique E van Wolferen
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Farah Bannink
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Camille Roesch
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Lisa van Uden
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Martijn R Molenaar
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine & Institute of Biomembranes, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - J Bernd Helms
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine & Institute of Biomembranes, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Guy C M Grinwis
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, 3584 CL Utrecht, the Netherlands
| | - Monique M A Verstegen
- Department of Surgery, Erasmus MC-University Medical Center, 3000 CA Rotterdam, the Netherlands
| | - Luc J W van der Laan
- Department of Surgery, Erasmus MC-University Medical Center, 3000 CA Rotterdam, the Netherlands
| | - Meritxell Huch
- Hubrecht Institute, University Medical Centre, Utrecht University, 3584 CT Utrecht, the Netherlands
| | - Niels Geijsen
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands; Hubrecht Institute, University Medical Centre, Utrecht University, 3584 CT Utrecht, the Netherlands
| | - Robert G Vries
- Hubrecht Institute, University Medical Centre, Utrecht University, 3584 CT Utrecht, the Netherlands
| | - Hans Clevers
- Hubrecht Institute, University Medical Centre, Utrecht University, 3584 CT Utrecht, the Netherlands
| | - Jan Rothuizen
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Baukje A Schotanus
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Louis C Penning
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
| | - Bart Spee
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, the Netherlands
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18
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Hashemi Goradel N, Eghbal MA, Darabi M, Roshangar L, Asadi M, Zarghami N, Nouri M. Improvement of Liver Cell Therapy in Rats by Dietary Stearic Acid. IRANIAN BIOMEDICAL JOURNAL 2016; 20:217-22. [PMID: 27090202 PMCID: PMC4983676 DOI: 10.7508/ibj.2016.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Stearic acid is known as a potent anti-inflammatory lipid. This fatty acid has profound and diverse effects on liver metabolism. The aim of this study was to investigate the effect of stearic acid on markers of hepatocyte transplantation in rats with acetaminophen (APAP)-induced liver damage. METHODS Wistar rats were randomly assigned to 10-day treatment. Stearic acid was administered to the rats with APAP-induced liver damage. The isolated liver cells were infused intraperitoneally into rats. Blood samples were obtained to evaluate the changes in the serum liver enzymes, including activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP) and the level of serum albumin. To assess the engraftment of infused hepatocytes, rats were euthanized, and the liver DNA was used for PCR using sex-determining region Y (SRY) primers. RESULTS The levels of AST, ALT and ALP in the serum of rats with APAP-induced liver injury were significantly increased and returned to the levels in control group by day six. The APAP-induced decrease in albumin was significantly improved in rats through cell therapy, when compared with that in the APAP-alone treated rats. SRY PCR analysis showed the presence of the transplanted cells in the liver of transplanted rats. CONCLUSION Stearic acid-rich diet in combination with cell therapy accelerates the recovering of hepatic dysfunction in a rat model of liver injury.
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Affiliation(s)
- Nasser Hashemi Goradel
- Department of Medical Biotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Ali Eghbal
- 2Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoud Darabi
- Department of Medical Biotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Liver and Gastrointestinal Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Roshangar
- Department of Anatomy and Histology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Asadi
- Department of Medical Biotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nosratollah Zarghami
- Department of Medical Biotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Department of Medical Biotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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