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Hydromorphone Protects against CO 2 Pneumoperitoneum-Induced Lung Injury via Heme Oxygenase-1-Regulated Mitochondrial Dynamics. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9034376. [PMID: 33927798 PMCID: PMC8053056 DOI: 10.1155/2021/9034376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 03/04/2021] [Accepted: 03/19/2021] [Indexed: 01/01/2023]
Abstract
Various pharmacological agents and protective methods have been shown to reverse pneumoperitoneum-related lung injury, but identifying the best strategy is challenging. Herein, we employed lung tissues and blood samples from C57BL/6 mice with pneumoperitoneum-induced lung injury and blood samples from patients who received laparoscopic gynecological surgery to investigate the therapeutic role of hydromorphone in pneumoperitoneum-induced lung injury along with the underlying mechanism. We found that pretreatment with hydromorphone alleviated lung injury in mice that underwent CO2 insufflation, decreased the levels of myeloperoxidase (MPO), total oxidant status (TOS), and oxidative stress index (OSI), and increased total antioxidant status (TAS). In addition, after pretreatment with hydromorphone, upregulated HO-1 protein expression, reduced mitochondrial DNA content, and improved mitochondrial morphology and dynamics were observed in mice subjected to pneumoperitoneum. Immunohistochemical staining also verified that hydromorphone could increase the expression of HO-1 in lung tissues in mice subjected to CO2 pneumoperitoneum. Notably, in mice treated with HO-1-siRNA, the protective effects of hydromorphone against pneumoperitoneum-induced lung injury were abolished, and hydromorphone did not have additional protective effects on mitochondria. Additionally, in clinical patients who received laparoscopic gynecological surgery, pretreatment with hydromorphone resulted in lower serum levels of club cell secretory protein-16 (CC-16) and intercellular adhesion molecule-1 (ICAM-1), a lower prooxidant-antioxidant balance (PAB), and higher heme oxygenase-1 (HO-1) activity than morphine pretreatment. Collectively, our results suggest that hydromorphone protects against CO2 pneumoperitoneum-induced lung injury via HO-1-regulated mitochondrial dynamics and may be a promising strategy to treat CO2 pneumoperitoneum-induced lung injury.
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Zhou HR, Ma XF, Lin WJ, Hao M, Yu XY, Li HX, Xu CY, Kuang HY. Neuroprotective Role of GLP-1 Analog for Retinal Ganglion Cells via PINK1/Parkin-Mediated Mitophagy in Diabetic Retinopathy. Front Pharmacol 2021; 11:589114. [PMID: 33679385 PMCID: PMC7928389 DOI: 10.3389/fphar.2020.589114] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/07/2020] [Indexed: 12/23/2022] Open
Abstract
GLP-1 analogs have been widely used to treat patients with type 2 diabetes in recent years and studies have found that GLP-1 analogs have multiple organ benefits. However, the role of GLP-1 analogs in diabetic retinopathy (DR), a common complication of diabetes mellitus (DM), remains controversial. Retinal ganglion cells (RGCs) are the only afferent neurons responsible for transmitting visual information to the visual center and are vulnerable in the early stage of DR. Protection of RGC is vital for visual function. The incretin glucagon-like peptide-1 (GLP-1), which is secreted by L-cells after food ingestion, could lower blood glucose level through stimulating the release of insulin. In the present study, we evaluated the effects of GLP-1 analog on RGCs both in vitro and in vivo. We established diabetic rat models in vivo and applied an RGC-5 cell line in vitro. The results showed that in high glucose conditions, GLP-1 analog alleviated the damage of RGCs. In addition, GLP-1 analog prevented mitophagy through the PINK1/Parkin pathway. Here we demonstrated the neuroprotective effect of GLP-1 analog, which may be beneficial for retinal function, and we further elucidated a novel mechanism in GLP-1 analog-regulated protection of the retina. These findings may expand the multi-organ benefits of GLP-1 analogs and provide new insights for the prevention of DR.
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Affiliation(s)
- Huan-Ran Zhou
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xue-Fei Ma
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wen-Jian Lin
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ming Hao
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xin-Yang Yu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hong-Xue Li
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Cheng-Ye Xu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hong-Yu Kuang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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Relja B, Land WG. Damage-associated molecular patterns in trauma. Eur J Trauma Emerg Surg 2020; 46:751-775. [PMID: 31612270 PMCID: PMC7427761 DOI: 10.1007/s00068-019-01235-w] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 09/27/2019] [Indexed: 12/13/2022]
Abstract
In 1994, the "danger model" argued that adaptive immune responses are driven rather by molecules released upon tissue damage than by the recognition of "strange" molecules. Thus, an alternative to the "self versus non-self recognition model" has been provided. The model, which suggests that the immune system discriminates dangerous from safe molecules, has established the basis for the future designation of damage-associated molecular patterns (DAMPs), a term that was coined by Walter G. Land, Seong, and Matzinger. The pathological importance of DAMPs is barely somewhere else evident as in the posttraumatic or post-surgical inflammation and regeneration. Since DAMPs have been identified to trigger specific immune responses and inflammation, which is not necessarily detrimental but also regenerative, it still remains difficult to describe their "friend or foe" role in the posttraumatic immunogenicity and healing process. DAMPs can be used as biomarkers to indicate and/or to monitor a disease or injury severity, but they also may serve as clinically applicable parameters for optimized indication of the timing for, i.e., secondary surgeries. While experimental studies allow the detection of these biomarkers on different levels including cellular, tissue, and circulatory milieu, this is not always easily transferable to the human situation. Thus, in this review, we focus on the recent literature dealing with the pathophysiological importance of DAMPs after traumatic injury. Since dysregulated inflammation in traumatized patients always implies disturbed resolution of inflammation, so-called model of suppressing/inhibiting inducible DAMPs (SAMPs) will be very briefly introduced. Thus, an update on this topic in the field of trauma will be provided.
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Affiliation(s)
- Borna Relja
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University Magdeburg, Magdeburg, Germany.
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60590, Frankfurt, Germany.
| | - Walter Gottlieb Land
- Molecular ImmunoRheumatology, INSERM UMR_S1109, Laboratory of Excellence Transplantex, University of Strasbourg, Strasbourg, France
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Ma Z, Lu D, Zhao W, Wang H. RBP and Alb in neonatal hydronephrosis and its association with IL-12 levels in pregnant women before delivery. Exp Ther Med 2019; 18:497-502. [PMID: 31258686 PMCID: PMC6566043 DOI: 10.3892/etm.2019.7605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 04/19/2019] [Indexed: 11/05/2022] Open
Abstract
Expression levels of retinol-binding protein (RBP) and albumin (Alb) in the kidney of patients with neonatal hydronephrosis were detected to explore whether RBP and Alb can be used as diagnostic indicators for neonatal hydronephrosis. Blood and urine samples from neonates with hydronephrosis in the obstetrics and gynaecology department of Hongqi Hospital Affiliated to Mudanjiang Medical University from January 2016 to January 2018, and healthy newborns were collected. RBP and Alb levels in neonates, and the expression of IL-12 in serum of the mothers were detected by ELISA. To establish the rat model, 30 male Sprague Dawley (SD) rats were randomly divided into two groups: sham operation group (n=15) and unilateral ureteral obstruction (UUO) (n=15). Expression of RBP and Alb protein was detected by western blot analysis. Another 30 female SD rats were randomly divided into the Sham and IL-12 knockdown groups. The Sham group was given NC treatment, while IL-12 knockdown group was given treatment with IL-12 knockdown adenovirus through tail vein injection. Results of ELISA showed that serum RBP and renal urinary Alb levels were higher in neonates with hydronephrosis compared with the control group (P=0.009 or P=0.013). Compared with the control group, levels of IL-12 were significantly lower in mother of neonatal hydronephrosis group (P=0.001). After the IL-12 knockdown treatment in pregnant rats, levels of RBP and Alb hydronephrosis-related indicators were significantly increased. The incidence of hydronephrosis in rats delivered via IL-12 knockdown pregnant rats was significantly higher than that of normal pregnant rats (P=0.001). The combination of RBP and Alb in the diagnosis of neonatal hydronephrosis has important clinical significance, and neonatal hydronephrosis is closely related to the level of IL-12 in mothers before birth. Our findings provide new ideas and theoretical basis for the diagnosis and prediction of neonatal hydronephrosis.
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Affiliation(s)
- Zhi Ma
- Department of Pediatric Surgery, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang 157000, P.R. China
| | - Dezhi Lu
- Department of Pediatric Surgery, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang 157000, P.R. China
| | - Wanxin Zhao
- Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang 157000, P.R. China
| | - Huizhi Wang
- Department of Gynaecology and Obstetrics, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, Heilongjiang 157000, P.R. China
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Zhao S, Li W, Cheng F, Rao T, Yu W, Ruan Y, Yuan R, Yao X, Ning J. High-pressure carbon dioxide pneumoperitoneum induces oxidative stress and mitochondria-associated apoptotic pathway in rabbit kidneys with severe hydronephrosis. Int J Mol Med 2018; 43:305-315. [PMID: 30431064 PMCID: PMC6257853 DOI: 10.3892/ijmm.2018.3986] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 10/11/2018] [Indexed: 01/07/2023] Open
Abstract
The primary aim of the present study was to investigate the potential effect of high‑pressure carbon dioxide (CO2) pneumoperitoneum on kidneys with severe hydronephrosis and to investigate the possible underlying mechanism. A total of 18 rabbits underwent a surgical procedure inducing severe hydronephrosis. Rabbits were then divided at random into three groups (n=6 each) and subjected to intraabdominal pressure of 0, 8 or 18 mmHg, respectively. CO2 inflation lasted for 90 min in the pneumoperitoneum groups. Oxidative stress was assessed by measurements of reactive oxygen species (ROS). Activation of apoptosis was analyzed by western blot analysis of B‑cell lymphoma 2 (Bcl‑2), Bcl‑2‑associated x protein (Bax), cytochrome c (Cyt c), caspase‑3 and caspase‑9 levels. In addition, TUNEL assay, hematoxylin and eosin (H&E) staining, measurement of mitochondrial membrane potential (MMP) and detection of changes to kidney ultramicrostructure were performed. In the 0 and 8 mmHg groups, all results were normal and similar. However, in the 18 mmHg group, the kidneys suffered oxidative damage and mitochondrial injuries, and increased ROS levels, lower MMP and mitochondrial vacuolization were observed. Furthermore, the mitochondrial/caspase‑dependent pathway of apoptosis was activated, as indicated by the apoptotic index, and the expression levels and translocation of Bax, Bcl‑2, Cyt c, caspase‑3 and caspase‑9. Therefore, it is concluded that high‑pressure CO2 pneumoperitoneum induces oxidative damage and apoptosis in rabbit kidneys with severe hydronephrosis, which is associated with the mitochondrial apoptotic pathway.
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Affiliation(s)
- Sheng Zhao
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
| | - Wei Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
| | - Fan Cheng
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
| | - Ting Rao
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
| | - Weimin Yu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
| | - Yuan Ruan
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
| | - Run Yuan
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
| | - Xiaobing Yao
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
| | - Jinzhuo Ning
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
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