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He Y, Su N, Yang H, Yang W, Zhao C, Fu Y, Hu Y, Hu X. ZEA mediates autophagy through the ROS-AMPK-m-TOR pathway to enhance the susceptibility of mastitis induced by Staphylococcus aureus in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115548. [PMID: 37832488 DOI: 10.1016/j.ecoenv.2023.115548] [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: 06/30/2023] [Revised: 09/28/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023]
Abstract
Mastitis is an inflammatory response of the mammary tissue caused by pathogenic bacterial infections, especially Staphylococcus aureus (S. aureus). Zearalenone (ZEA) is one of the common mycotoxins in moldy feed, which usually affects the cow's resistance to pathogenic microorganisms. However, it is not well understood whether ZEA affects the development of mastitis. Therefore, this study aimed to investigate the role of ZEA in the development of S. aureus-induced mastitis in mice. The results showed that administered daily by gavage for one week of ZEA (40 mg/kg) aggravated the severity of mastitis induced by S. aureus. Furthermore, we found that ZEA promotes the adhesion and invasion of S. aureus into mouse mammary epithelial cells (MMEC) by activating autophagy, and the activation of autophagy mediated by ROS-AMPK-m-TOR pathway. Taken together, the results showed that ZEA enhances S. aureus-induced mastitis susceptibility through activating autophagy mediated by ROS-AMPK-mTOR signaling pathway.
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Affiliation(s)
- Yuhong He
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Niri Su
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Hengyi Yang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Wencheng Yang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Caijun Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Yunhe Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China
| | - Yubo Hu
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China.
| | - Xiaoyu Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China.
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Soul W, Mupangwa J, Muchenje V, Mpendulo TC. Biochemical indices and heamtological parameters of goats fed lablab purpureus and vigna unguiculata as supplements to a chloris gayana basal diet. Vet Anim Sci 2020; 8:100073. [PMID: 32734090 PMCID: PMC7386721 DOI: 10.1016/j.vas.2019.100073] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 06/26/2019] [Accepted: 09/25/2019] [Indexed: 12/02/2022] Open
Abstract
The objective of this study was to evaluate the effects of forage legume diets on haematological and biochemical indices of Xhosa goats. Eighteen animals, one-year-old, of average live weight 14.13 ± 0.24 kg were assigned, in a completely randomized design, to three treatment diets. Animals were housed individually and sex was equally represented among treatments with 6 animals per treatment. Weights and blood samples were taken every fortnight. A pair of blood samples (5 ml each) were collected from each goat, via jugular vein puncture and were subjected to either haematological or biochemical analysis. The results show that treatment diets and sex significantly (P < 0.05) affected DMI, total gain, ADG, and feed conversion ratio. Treatment diets and sex had no effects (P > 0.05) on serum total proteins, globulins, urea, creatinine, alanine aminotransferase, alkaline phosphatase (ALP), and gamma- glutamyl transferase concentrations. The diet influenced albumin was (P < 0.05) while sex influenced ALP concentration (P < 0.05). Measured over time, the plasma concentration of urea and ALP significantly increased (P < 0.05) while creatinine and cholesterol concentration decreased (P < 0.05). Although the overall blood biochemical properties remain unchanged among the treatments and between sexes; treatment by sex, treatment by day and sex by day interactions were significant (P < 0.05). The white blood cells, red blood cell, mean corpuscular haemoglobin, mean corpuscular haemoglobin concentration, haemoglobin, haematocrit, and platelet and mean platelet volume levels were similar among treatments and between sexes (P > 0.05). The mean cell volume and red cell distribution width were different among treatments (P < 0.05). Treatment diets significantly (P < 0.05) influenced neutrophil (%) content while sex influenced basophile (%) content. In conclusion forage legumes did not cause toxicity in goats or any pathological condition.
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Affiliation(s)
- Washaya Soul
- University of Fort Hare, Faculty of Science and Agriculture, Department of Livestock and Pasture Science, P. Bag X1314, Alice 5700, South Africa
- Africa University, College of Health, Agriculture and Natural Sciences, Department of Agriculture, P.O. Box 1320 Mutare
- Corresponding author.
| | - John Mupangwa
- University of Namibia, Faculty of Agriculture and Natural Resources, Department of Animal Science, P Bag 13301 Windhoek Namibia
| | - Voster Muchenje
- University of Fort Hare, Faculty of Science and Agriculture, Department of Livestock and Pasture Science, P. Bag X1314, Alice 5700, South Africa
| | - Thando Conference Mpendulo
- University of Fort Hare, Faculty of Science and Agriculture, Department of Livestock and Pasture Science, P. Bag X1314, Alice 5700, South Africa
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Marijani E, Nasimolo J, Kigadye E, Gnonlonfin GJB, Okoth S. Sex-Related Differences in Hematological Parameters and Organosomatic Indices of Oreochromis niloticus Exposed to Aflatoxin B 1 Diet. SCIENTIFICA 2017; 2017:4268926. [PMID: 29098110 PMCID: PMC5643127 DOI: 10.1155/2017/4268926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/17/2017] [Indexed: 06/07/2023]
Abstract
A 24-week feeding experiment was conducted to assess whether males and females of Oreochromis niloticus exhibit differences in their hematological responses and organosomatic indices to dietary AFB1 contamination. Triplicate groups of O. niloticus (initial body weight: 24.1 ± 0.6 g) were fed with four diets (Diets 1 to 4) containing 0, 20, 200, and 2,000 μg AFB1 kg-1. A significant decrease (P < 0.05) in hemoglobin (Hb), red blood cells (RBC), and hematocrit (Hct) was observed in AFB1 exposure groups, with the lowest levels recorded in the 2000 μg AFB1 kg-1 treatment. A significant increase in mean white blood cells (WBC), neutrophils, and lymphocytes was observed in AFB1 exposure groups. No sex-related differences in RBC, WBC, lymphocytes, monocytes, and neutrophils levels were observed. However, hemoglobin and hematocrit values for female O. niloticus were significantly lower than those for male O. niloticus. Organosomatic indices showed that the relative liver, kidney, and spleen weights were significantly higher (P < 0.05) in the AFB1 supplemented group than in the control group. However, the effect of aflatoxin on organosomatic indices does not depend on sex but rather depends on the dose of aflatoxin in the diet. These results provide useful information for monitoring changes in the health status of male and female O. niloticus.
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Affiliation(s)
- Esther Marijani
- The Open University of Tanzania, P.O. Box 23409, Dar es Salaam, Tanzania
- School of Biological Science, University of Nairobi, P.O. Box 30197, Nairobi 00100, Kenya
| | - Johnson Nasimolo
- Department of Veterinary Anatomy and Physiology, University of Nairobi, P.O. Box 30197, Nairobi 00100, Kenya
| | - Emmanuel Kigadye
- The Open University of Tanzania, P.O. Box 23409, Dar es Salaam, Tanzania
| | | | - Sheila Okoth
- School of Biological Science, University of Nairobi, P.O. Box 30197, Nairobi 00100, Kenya
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Huang S, Zheng N, Fan C, Cheng M, Wang S, Jabar A, Wang J, Cheng J. Effects of aflatoxin B1 combined with ochratoxin A and/or zearalenone on metabolism, immune function, and antioxidant status in lactating dairy goats. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2017; 31:505-513. [PMID: 28920416 PMCID: PMC5838322 DOI: 10.5713/ajas.17.0279] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/25/2017] [Accepted: 08/21/2017] [Indexed: 01/06/2023]
Abstract
OBJECTIVE This experiment investigated the effects of aflatoxin B1 (AFB1) alone or mixed with ochratoxin A (OTA) and/or zearalenone (ZEA) on the metabolism, immune function, and antioxidant status of dairy goats. METHODS Fifty lactating Laoshan dairy goats were randomly assigned to one of five treatment groups (n = 10) for 14 days. Goats were fed no additive (control) or administered with 50 μg AFB1/kg dry matter (DM) (AFB1), 50 μg AFB1/kg DM+100 μg OTA/kg DM (AFB1+ OTA), 50 μg AFB1/kg DM+500 μg ZEA/kg DM (AFB1+ZEA), or 50 μg AFB1/kg DM+100 μg OTA/kg DM+500 μg ZEA/kg DM (AFB1+OTA+ZEA). RESULTS Dry matter intake and milk production were lower in goats fed AFB1+OTA+ZEA than in controls. Supplementation with AFB1, OTA, and ZEA significantly decreased red blood cell count, hematocrit, mean corpuscular volume, mean corpuscular hemoglobin, and mean platelet volume, and significantly increased white blood cell count, when compared with the control group. Compared with control, the combination of AFB1, OTA, and ZEA significantly increased alanine aminotransferase (ALT) and alkaline phosphatase (ALP) activities, total bilirubin (TBIL), interleukin-6, and malondialdehyde (MDA), but significantly reduced immunoglobulin A concentration, the activities of superoxide dismutase (SOD) and glutathione peroxides (GSH-Px), and total antioxidant capacity (T-AOC) in serum. Administration of AFB1 combined with OTA led to higher ALP, ALT, TBIL, and MDA, as well as lower milk production, SOD and GSH-Px activities, and T-AOC, than administration of AFB1 combined with ZEA. CONCLUSION The mixture of AFB1, OTA, and ZEA exerted the greatest adverse effects on dairy goats, meanwhile the deleterious damage of the other mycotoxin combinations were in varying degrees. The findings of this study could provide guidance for the prevention and treatment of the consequences of contamination of animal feeds with combinations of mycotoxin.
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Affiliation(s)
- Shuai Huang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Nan Zheng
- Ministry of Agriculture-Milk Risk Assessment Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Caiyun Fan
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Ming Cheng
- Qingdao Research Institute of Husbandry and Veterinary, Qingdao 266100, China
| | - Shang Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Adil Jabar
- Ministry of Agriculture-Milk Risk Assessment Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jiaqi Wang
- Ministry of Agriculture-Milk Risk Assessment Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jianbo Cheng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
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Gallo A, Giuberti G, Frisvad JC, Bertuzzi T, Nielsen KF. Review on Mycotoxin Issues in Ruminants: Occurrence in Forages, Effects of Mycotoxin Ingestion on Health Status and Animal Performance and Practical Strategies to Counteract Their Negative Effects. Toxins (Basel) 2015; 7:3057-111. [PMID: 26274974 PMCID: PMC4549740 DOI: 10.3390/toxins7083057] [Citation(s) in RCA: 188] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 01/10/2023] Open
Abstract
Ruminant diets include cereals, protein feeds, their by-products as well as hay and grass, grass/legume, whole-crop maize, small grain or sorghum silages. Furthermore, ruminants are annually or seasonally fed with grazed forage in many parts of the World. All these forages could be contaminated by several exometabolites of mycotoxigenic fungi that increase and diversify the risk of mycotoxin exposure in ruminants compared to swine and poultry that have less varied diets. Evidence suggests the greatest exposure for ruminants to some regulated mycotoxins (aflatoxins, trichothecenes, ochratoxin A, fumonisins and zearalenone) and to many other secondary metabolites produced by different species of Alternaria spp. (e.g., AAL toxins, alternariols, tenuazonic acid or 4Z-infectopyrone), Aspergillus flavus (e.g., kojic acid, cyclopiazonic acid or β-nitropropionic acid), Aspergillus fuminatus (e.g., gliotoxin, agroclavine, festuclavines or fumagillin), Penicillium roqueforti and P. paneum (e.g., mycophenolic acid, roquefortines, PR toxin or marcfortines) or Monascus ruber (citrinin and monacolins) could be mainly related to forage contamination. This review includes the knowledge of mycotoxin occurrence reported in the last 15 years, with special emphasis on mycotoxins detected in forages, and animal toxicological issues due to their ingestion. Strategies for preventing the problem of mycotoxin feed contamination under farm conditions are discussed.
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Affiliation(s)
- Antonio Gallo
- Institute of Feed & Food Science and Nutrition, Università Cattolica del Sacro Cuore, Piacenza 29122, Italy.
| | - Gianluca Giuberti
- Institute of Feed & Food Science and Nutrition, Università Cattolica del Sacro Cuore, Piacenza 29122, Italy.
| | - Jens C Frisvad
- Department of Systems Biology, Technical University of Denmark, Building 221, Kgs. Lyngby DK-2800, Denmark.
| | - Terenzio Bertuzzi
- Institute of Feed & Food Science and Nutrition, Università Cattolica del Sacro Cuore, Piacenza 29122, Italy.
| | - Kristian F Nielsen
- Department of Systems Biology, Technical University of Denmark, Building 221, Kgs. Lyngby DK-2800, Denmark.
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