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Antunes BN, Caye P, Schiefler OHDM, Jung J, Engelsdorff JS, Tostes VP, Degregori EB, Reinstein RDS, De Andrade CM, Brun MV. Effects of Hyperbaric Oxygen Therapy on Hemogram, Serum Biochemistry and Coagulation Parameters of Dogs Undergoing Elective Laparoscopic-Assisted Ovariohysterectomy. Animals (Basel) 2024; 14:1785. [PMID: 38929404 PMCID: PMC11200467 DOI: 10.3390/ani14121785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND This study explored the effects of hyperbaric oxygen therapy (HBOT) on hemogram, serum biochemistry and hemostatic variables in female dogs undergoing laparoscopic-assisted ovariohysterectomy (OVH). MATERIALS Thirty adult, mixed-breed, healthy female dogs were randomly divided into the following three groups: HBOT + SURG (exposed to two absolute atmospheres (ATAs) for 45 min followed by laparoscopic-assisted OVH), HBOT (exposed to two ATAs for 45 min) and SURG (laparoscopic-assisted OVH). Blood samples were collected at T0 (at the admission), at T1, 24 h after T0 (immediately after HBOT in the HBOT + SURG and HBOT groups, and immediately before anesthetic premedication in the SURG group), and at T2, 48 h after T0 (24 h after HBOT and anesthetic premedication). METHODS Assessments included erythrogram, leukogram, thrombogram, renal and hepatic serum biochemistry, prothrombin time (PT), activated partial thromboplastin time (APTT), buccal mucosal bleeding time (BMBT) and bloodstain area (BA) on hygroscopic paper collected at the BMBT. RESULTS Both the HBOT + SURG and SURG groups presented neutrophilia (p ≤ 0.0039) at T2 and an increase of ALP at T2 (p ≤ 0.0493), the SURG group presented an increase in leukocyte count at T2 (p = 0.0238) and the HBOT + SURG group presented a reduction in lymphocyte count at T2 (p = 0.0115). In the HBOT + SURG group, there was a reduction in PT and APTT in relation to the baseline value (p ≤ 0.0412). CONCLUSIONS A session of HBOT at two ATAs for 45 min did not cause changes in the BMBT or BA in healthy female dogs. Some blood parameters investigated (neutrophil and lymphocyte count, ALP, PT and APTT) were affected by the use of HBOT.
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Affiliation(s)
- Bernardo Nascimento Antunes
- Graduate Program in Veterinary Medicine, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil; (P.C.); (O.H.d.M.S.); (J.J.); (J.S.E.); (E.B.D.); (R.d.S.R.); (C.M.D.A.); (M.V.B.)
| | - Pâmela Caye
- Graduate Program in Veterinary Medicine, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil; (P.C.); (O.H.d.M.S.); (J.J.); (J.S.E.); (E.B.D.); (R.d.S.R.); (C.M.D.A.); (M.V.B.)
| | - Otávio Henrique de Melo Schiefler
- Graduate Program in Veterinary Medicine, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil; (P.C.); (O.H.d.M.S.); (J.J.); (J.S.E.); (E.B.D.); (R.d.S.R.); (C.M.D.A.); (M.V.B.)
| | - Jenifer Jung
- Graduate Program in Veterinary Medicine, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil; (P.C.); (O.H.d.M.S.); (J.J.); (J.S.E.); (E.B.D.); (R.d.S.R.); (C.M.D.A.); (M.V.B.)
| | - João Segura Engelsdorff
- Graduate Program in Veterinary Medicine, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil; (P.C.); (O.H.d.M.S.); (J.J.); (J.S.E.); (E.B.D.); (R.d.S.R.); (C.M.D.A.); (M.V.B.)
| | - Vitória Pina Tostes
- Department of Small Animal Clinics, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil;
| | - Emanuelle Bortolotto Degregori
- Graduate Program in Veterinary Medicine, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil; (P.C.); (O.H.d.M.S.); (J.J.); (J.S.E.); (E.B.D.); (R.d.S.R.); (C.M.D.A.); (M.V.B.)
| | - Rainer da Silva Reinstein
- Graduate Program in Veterinary Medicine, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil; (P.C.); (O.H.d.M.S.); (J.J.); (J.S.E.); (E.B.D.); (R.d.S.R.); (C.M.D.A.); (M.V.B.)
| | - Cinthia Melazzo De Andrade
- Graduate Program in Veterinary Medicine, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil; (P.C.); (O.H.d.M.S.); (J.J.); (J.S.E.); (E.B.D.); (R.d.S.R.); (C.M.D.A.); (M.V.B.)
| | - Maurício Veloso Brun
- Graduate Program in Veterinary Medicine, Center of Rural Science, Federal University of Santa Maria (UFSM), Av. Roraima, 1000, Building 42, Room 3135, Santa Maria 97105-900, RS, Brazil; (P.C.); (O.H.d.M.S.); (J.J.); (J.S.E.); (E.B.D.); (R.d.S.R.); (C.M.D.A.); (M.V.B.)
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Zhang Q, Wei J, Liu Z, Huang X, Sun M, Lai W, Chen Z, Wu J, Chen Y, Guo X, Huang Q. STING signaling sensing of DRP1-dependent mtDNA release in kupffer cells contributes to lipopolysaccharide-induced liver injury in mice. Redox Biol 2022; 54:102367. [PMID: 35724543 PMCID: PMC9218162 DOI: 10.1016/j.redox.2022.102367] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/27/2022] [Accepted: 06/09/2022] [Indexed: 11/28/2022] Open
Abstract
Aberrant pro-inflammatory activation of Kupffer cells (KCs) is strongly involved in the pathogenesis of septic liver injury. Recent evidence indicates the crucial roles of excessive stimulator of interferon genes (STING) signaling activation during sepsis. However, the role of STING signaling in septic liver injury remains unclear. In this study, we demonstrated that STING signaling was markedly activated in KCs isolated from wild type mice after lipopolysaccharide (LPS) treatment. STING deficiency effectively protected liver function, attenuated systemic inflammatory response and decreased mortality in LPS-treated mice, which were aggravated by STING agonist (DMXAA). Importantly, STING signaling activation in KCs contributed to LPS-induced liver injury through promoting hepatocyte death. Mechanistically, STING signaling could be activated by release of mitochondrial DNA (mtDNA) through dynamin-related protein 1 (DRP1)-dependent mitochondrial fission in LPS-treated KCs. Additionally, LPS stimulation enhanced DRP1-dependent mitochondrial ROS production, which promoted the leak of mtDNA into the cytosol and subsequent STING signaling activation in KCs. The in vivo experiments showed that pharmacological inhibition of DRP1 with Mdivi-1 partially prevented the activation of STING signaling in KCs isolated from LPS-challenged mice, as well as alleviated liver injury and inhibited systemic inflammatory response. In summary, our study comprehensively confirmed that STING signaling senses the DRP1-dependent release of mtDNA in KCs and its activation might play a key role in LPS-induced liver injury, which offers new sights and therapeutic targets for management of septic liver injury.
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Affiliation(s)
- Qin Zhang
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jiayi Wei
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhuanhua Liu
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Xiaoxia Huang
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Maomao Sun
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wujiang Lai
- Department of Gynecology, Obstetrics and Gynecology Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zhenfeng Chen
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jie Wu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yanjia Chen
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xiaohua Guo
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qiaobing Huang
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China; Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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