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Wells TL, Poindexter MB, Kweh MF, Gandy J, Nelson CD. Intramammary calcitriol treatment of mastitis alters profile of milk somatic cells and indicators of redox activity in milk. Vet Immunol Immunopathol 2023; 266:110679. [PMID: 38039842 DOI: 10.1016/j.vetimm.2023.110679] [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: 08/22/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 12/03/2023]
Abstract
The objective of this experiment was to determine the effect of intramammary calcitriol treatment on indicators of inflammation during an intramammary bacterial infection. Lactating Holstein cows were challenged with intramammary Streptococcus uberis. At the onset of mild or moderate mastitis, cows were randomly assigned to receive 10 µg of intramammary calcitriol (CAL, n = 7) or placebo control (CON; n = 6) after every milking for 5 days. Data were analyzed by ANOVA with mixed models using the MIXED procedure of SAS with significance declared at P ≤ 0.05. Milk somatic cells, mastitis severity scores, rectal temperatures, and milk bacterial counts did not differ between treatments. Calcitriol decreased the percentage of CD11b+CD14- cells in milk compared with CON (CON = 81 vs. CAL = 61 ± 5%). Antioxidant potential and concentrations of 15-F2t- isoprostanes in milk of infected quarters also were lower in CAL compared with CON. Transcripts for the 25-hydroxyvitamin D 24-hydroxylase and inducible nitric oxide synthase were greater in milk somatic cells of CAL compared with CON, but those for β-defensin 7, metallothionein 1 A and 2 A, thioredoxin and thioredoxin reductase did not differ between treatments. Although clinical signs of severity did not differ, CAL influenced the composition of milk somatic cells and redox activity in milk of infected quarters.
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Affiliation(s)
- Teri L Wells
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Michael B Poindexter
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Mercedes F Kweh
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Jeff Gandy
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
| | - Corwin D Nelson
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA.
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Braun H, Hauke M, Eckenstaler R, Petermann M, Ripperger A, Kühn N, Schwedhelm E, Ludwig-Kraus B, Kraus FB, Dubourg V, Zernecke A, Schreier B, Gekle M, Benndorf RA. The F2-isoprostane 8-iso-PGF 2α attenuates atherosclerotic lesion formation in Ldlr-deficient mice - Potential role of vascular thromboxane A 2 receptors. Free Radic Biol Med 2022; 185:36-45. [PMID: 35470061 DOI: 10.1016/j.freeradbiomed.2022.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 10/18/2022]
Abstract
The F2-isoprostane 8-iso-PGF2α (also known as 15-F2t-isoprostane, iPF2α-III, 8-epi PGF2α, 15(S)-8-iso-PGF2α, or 8-Isoprostane), a thromboxane A2 receptor (TP) agonist, stable biomarker of oxidative stress, and risk marker of cardiovascular disease, has been proposed to aggravate atherogenesis in genetic mouse models of atherosclerotic vascular disease. Moreover, the TP plays an eminent role in the pathophysiology of endothelial dysfunction, atherogenesis, and cardiovascular disease. Yet it is unknown, how the TP expressed by vascular cells affects atherogenesis or 8-iso-PGF2α-related effects in mouse models of atherosclerosis. We studied Ldlr-deficient vascular endothelial-specific (EC) and vascular smooth muscle cell (VSMC)-specific TP knockout mice (TPECKO/Ldlr KO; TPVSMCKO/Ldlr KO) and corresponding wild-type littermates (TPWT/Ldlr KO). The mice were fed a Western-type diet for eight weeks and received either 8-iso-PGF2α or vehicle infusions via osmotic pumps. Subsequently, arterial blood pressure, atherosclerotic lesion formation, and lipid profiles were analyzed. We found that VSMC-, but not EC-specific TP deletion, attenuated atherogenesis without affecting blood pressure or plasma lipid profiles of the mice. In contrast to a previous report, 8-iso-PGF2α tended to reduce atherogenesis in TPWT/Ldlr KO and TPEC KO/Ldlr KO mice, again without significantly affecting blood pressure or lipid profiles of these mice. However, no further reduction in atherogenesis was observed in 8-iso-PGF2α-treated TPVSMC KO/Ldlr KO mice. Our work suggests that the TP expressed in VSMC but not the TP expressed in EC is involved in atherosclerotic lesion formation in Ldlr-deficient mice. Furthermore, we report an inhibitory effect of 8-iso-PGF2α on atherogenesis in this experimental atherosclerosis model, which paradoxically appears to be related to the presence of the TP in VSMC.
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Affiliation(s)
- Heike Braun
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Michael Hauke
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Robert Eckenstaler
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Markus Petermann
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Anne Ripperger
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Niklas Kühn
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Edzard Schwedhelm
- Institute of Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | | | - Virginie Dubourg
- Julius-Bernstein-Institute of Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Alma Zernecke
- Institute of Experimental Biomedicine, University Hospital Würzburg, Würzburg, Germany
| | - Barbara Schreier
- Julius-Bernstein-Institute of Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Michael Gekle
- Julius-Bernstein-Institute of Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Ralf A Benndorf
- Department of Clinical Pharmacy and Pharmacotherapy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
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Lu ZY, Feng L, Jiang WD, Wu P, Liu Y, Jin XW, Ren HM, Kuang SY, Li SW, Tang L, Zhang L, Mi HF, Zhou XQ. An Antioxidant Supplement Function Exploration: Rescue of Intestinal Structure Injury by Mannan Oligosaccharides after Aeromonas hydrophila Infection in Grass Carp ( Ctenopharyngodon idella). Antioxidants (Basel) 2022; 11:antiox11050806. [PMID: 35624670 PMCID: PMC9137958 DOI: 10.3390/antiox11050806] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 12/26/2022] Open
Abstract
Mannan oligosaccharides (MOS) are a type of functional oligosaccharide which have received increased attention because of their beneficial effects on fish intestinal health. However, intestinal structural integrity is a necessary prerequisite for intestinal health. This study focused on exploring the protective effects of dietary MOS supplementation on the grass carp’s (Ctenopharyngodon idella) intestinal structural integrity (including tight junction (TJ) and adherent junction (AJ)) and its related signalling molecule mechanism. A total of 540 grass carp (215.85 ± 0.30 g) were fed six diets containing graded levels of dietary MOS supplementation (0, 200, 400, 600, 800 and 1000 mg/kg) for 60 days. Subsequently, a challenge test was conducted by injection of Aeromonas hydrophila for 14 days. We used ELISA, spectrophotometry, transmission electron microscope, immunohistochemistry, qRT-PCR and Western blotting to determine the effect of dietary MOS supplementation on intestinal structural integrity and antioxidant capacity. The results revealed that dietary MOS supplementation protected the microvillus of the intestine; reduced serum diamine oxidase and d-lactate levels (p < 0.05); enhanced intestinal total antioxidant capacity (p < 0.01); up-regulated most intestinal TJ and AJ mRNA levels; and decreased GTP-RhoA protein levels (p < 0.01). In addition, we also found several interesting results suggesting that MOS supplementation has no effects on ZO-2 and Claudin-15b. Overall, these findings suggested that dietary MOS supplementation could protect intestinal ultrastructure, reduce intestinal mucosal permeability and maintain intestinal structural integrity via inhibiting MLCK and RhoA/ROCK signalling pathways.
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Affiliation(s)
- Zhi-Yuan Lu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Z.-Y.L.); (L.F.); (W.-D.J.); (P.W.); (Y.L.); (X.-W.J.); (H.-M.R.)
| | - Lin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Z.-Y.L.); (L.F.); (W.-D.J.); (P.W.); (Y.L.); (X.-W.J.); (H.-M.R.)
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Wei-Dan Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Z.-Y.L.); (L.F.); (W.-D.J.); (P.W.); (Y.L.); (X.-W.J.); (H.-M.R.)
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Pei Wu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Z.-Y.L.); (L.F.); (W.-D.J.); (P.W.); (Y.L.); (X.-W.J.); (H.-M.R.)
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Yang Liu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Z.-Y.L.); (L.F.); (W.-D.J.); (P.W.); (Y.L.); (X.-W.J.); (H.-M.R.)
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiao-Wan Jin
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Z.-Y.L.); (L.F.); (W.-D.J.); (P.W.); (Y.L.); (X.-W.J.); (H.-M.R.)
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Hong-Mei Ren
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Z.-Y.L.); (L.F.); (W.-D.J.); (P.W.); (Y.L.); (X.-W.J.); (H.-M.R.)
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Sheng-Yao Kuang
- Animal Nutrition Institute, Sichuan Academy of Animal Science, Sichuan Animtech Feed Co., Ltd., Chengdu 610066, China; (S.-Y.K.); (S.-W.L.); (L.T.)
| | - Shu-Wei Li
- Animal Nutrition Institute, Sichuan Academy of Animal Science, Sichuan Animtech Feed Co., Ltd., Chengdu 610066, China; (S.-Y.K.); (S.-W.L.); (L.T.)
| | - Ling Tang
- Animal Nutrition Institute, Sichuan Academy of Animal Science, Sichuan Animtech Feed Co., Ltd., Chengdu 610066, China; (S.-Y.K.); (S.-W.L.); (L.T.)
| | - Lu Zhang
- Healthy Aquaculture Key Laboratory of Sichuan Province, Tongwei Co., Ltd., Chengdu 610041, China; (L.Z.); (H.-F.M.)
| | - Hai-Feng Mi
- Healthy Aquaculture Key Laboratory of Sichuan Province, Tongwei Co., Ltd., Chengdu 610041, China; (L.Z.); (H.-F.M.)
| | - Xiao-Qiu Zhou
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Z.-Y.L.); (L.F.); (W.-D.J.); (P.W.); (Y.L.); (X.-W.J.); (H.-M.R.)
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
- Correspondence:
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