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Kaypak MK, Annakkaya AN, Davran F, Yıldız Gülhan P, Yüregir U. The Effect of Continuous Positive Airway Pressure (CPAP) Therapy on Serum Caspase-3 Level in Patients with Obstructive Sleep Apnea (OSA). Sleep Breath 2024:10.1007/s11325-024-03039-8. [PMID: 38683249 DOI: 10.1007/s11325-024-03039-8] [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: 01/12/2024] [Revised: 04/15/2024] [Accepted: 04/24/2024] [Indexed: 05/01/2024]
Abstract
INTRODUCTION Intermittent hypoxemia has an important role in the physiopathogenesis of obstructive sleep apnea (OSA) complications. Increased apoptosis due to intermittent hypoxemia may be an important clinical entity in OSA. In this study, we aimed to evaluate caspase-3 enzyme level, which is an indirect marker of increased apoptosis in patients with OSA and to evaluate the effect of OSA treatment with continuous positive airway pressure on caspase-3 enzyme level. MATERIALS AND METHODS This study included 141 consecutive patients admitted to the sleep-disordered breathing laboratory within 6 months. Caspase-3 was measured in routine blood samples obtained on the morning of polysomnography (PSG) performed at night. The compliance of the patients to CPAP treatment was evaluated and caspase-3 levels were checked again after treatment. RESULTS A total of 141 patients, 39 females (27,7%) and 102 males (72,3%) were included in the study. The mean age of the patients was 49 ± 12 years (min-17, max-77). According to PSG results, OSA was detected in 95.7% (135/141) of the cases. Mild OSA was 35 (24.8%), moderate OSA 39 (27.7%) and severe OSA 61 (43.3%) cases. Median caspase-3 enzyme levels were similar in men and women in the study group. There was no statistically significant difference in hemogram parameters and caspase-3 enzyme levels between the groups divided according to the presence and severity of OSA. It was determined that caspase-3 enzyme level did not change significantly after 3 months of CPAP treatment in OSA compared to pretreatment. Caspase-3 was found to have a negative correlation with both the percentage of daily use of CPAP therapy and the percentage of CPAP device use for more than 1 h per night. It was found that the control caspase-3 level decreased statistically significantly as the percentage of daily use of CPAP therapy increased (r = -0.397, p = 0.030). It was found that the control caspase-3 level decreased statistically significantly as the percentage of CPAP therapy use for more than 1 h per night increased (r = -0.411, p = 0.024). CONCLUSION The results of this study did not reveal a relationship between the severity of OSA and caspase-3 levels. However, blood caspase-3 levels decreased as treatment compliance increased, suggesting that CPAP treatment may correct increased apoptosis in OSA. There is a need for more comprehensive studies on this issue.
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Affiliation(s)
- Mustafa Kemal Kaypak
- Faculty of Medicine, Department of Chest Diseases, Duzce University, Konuralp 81620, Duzce, Turkey
| | - Ali Nihat Annakkaya
- Faculty of Medicine, Department of Chest Diseases, Duzce University, Konuralp 81620, Duzce, Turkey.
| | - Fatih Davran
- Faculty of Medicine, Depertment of Biochemistry, Duzce University, Konuralp 81620, Duzce, Turkey
| | - Pınar Yıldız Gülhan
- Faculty of Medicine, Department of Chest Diseases, Duzce University, Konuralp 81620, Duzce, Turkey
| | - Uğur Yüregir
- Faculty of Medicine, Department of Chest Diseases, Duzce University, Konuralp 81620, Duzce, Turkey
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Guo CY, Chang CC, Wang KJ, Hsieh TL. Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study. IEEE JOURNAL OF TRANSLATIONAL ENGINEERING IN HEALTH AND MEDICINE 2022; 11:318-329. [PMID: 38163041 PMCID: PMC10756135 DOI: 10.1109/jtehm.2022.3209754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/30/2022] [Accepted: 09/19/2022] [Indexed: 01/03/2024]
Abstract
This study proposes a low-cost, high-sensitivity sensor of beat-to-beat local pulse wave velocity (PWV), to be used in a cuffless blood pressure monitor (BPM). OBJECTIVE We design an adaptive algorithm to detect the feature of the pulse wave, making it possible for two sensors to measure the local PWV in the radial artery at a short distance. Unlike the cuffless BPM that needs to use a regression model for calibration. METHOD We encapsulate the piezoelectric sensor material in a cavity and design an analog front-end circuit. This study used color ultrasound imaging equipment to measure radial arterial parameters, including the diameter and wall thickness, to aid the estimation of blood pressure (BP) using the Moens-Korteweg (MK) equation of hemodynamics. RESULTS We compared the blood pressure estimated by the MK equation with the reference BP measured using an aneroid sphygmomanometer in a test group of 32 people, resulting in a mean difference of systolic BP of -0.63 mmHg, and a standard deviation of ±5.14 mmHg, a mean difference of mean arterial pressure (MAP) of 0.97 mmHg, with a standard deviation of ±3.54 mmHg, and a mean difference of diastolic BP of -1.14 mmHg, with a standard deviation of ±4.08 mmHg. This study has verified its compliance with ISO 81060-2. CONCLUSIONS A new type of wearable continuous calibration-free BPM can replace the situation that requires the use of traditional ambulatory BPM and reduce patient discomfort. CLINICAL IMPACT In this study can provide long-term continuous blood pressure monitoring in the hospital.
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Affiliation(s)
| | | | | | - Tung-Li Hsieh
- Department of Electronic EngineeringNational Kaohsiung University of Science and Technology, SanminKaohsiung City807618Taiwan
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Lin W, Jin Y, Hu X, Huang E, Zhu Q. AMPK/PGC-1α/GLUT4-Mediated Effect of Icariin on Hyperlipidemia-Induced Non-Alcoholic Fatty Liver Disease and Lipid Metabolism Disorder in Mice. BIOCHEMISTRY. BIOKHIMIIA 2021; 86:1407-1417. [PMID: 34906049 DOI: 10.1134/s0006297921110055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 07/21/2021] [Accepted: 10/22/2021] [Indexed: 06/14/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common liver disease in the world. Therapeutic activity of icariin, a major bioactive component of Epimedii Herba, in NAFLD is still unknown. Herein, the C57BL/6J mice were fed with a high-fat diet for 16 weeks to establish a NAFLD model. Mice were assigned to five groups: control group, NAFLD group, and icariin treatment groups. Effects of icariin on blood indices, glucose tolerance, insulin sensitivity, histopathological morphology, cell apoptosis, lipid accumulation, and AMPK signaling were analyzed. In addition, another cohort of mice were assigned to five groups: control group, NAFLD group, dorsomorphin treatment group, icariin treatment group, and dorsomorphin + icariin treatment group. Expression of proteins in liver tissues associated with AMPK signaling, and levels of ALT and AST were evaluated. Icariin attenuated the NAFLD-induced increase of the TG, TC, LDL-C, ALT, AST levels. HDL-C levels were affected neither by NAFLD nor by icariin. Furthermore, icariin treatment (100-200 mg/kg) counteracted the NAFLD-reduced glucose tolerance and insulin sensitivity and modulated histopathological changes, cell apoptosis, and lipid accumulation in liver tissues. Additionally, icariin mitigated the NAFLD-induced up-regulation of the cleaved caspase 3/9, SREBP-1c, and DGAT-2 levels, and enhanced the expression level of CPT-1, p-ACC/ACC, AMPKα1, PGC-1α, and GLUT4. Effects of icariin on the AMPK signaling and levels of AST and ALT could be reversed by AMPK inhibitor, dorsomorphin. This paper investigates the glucose-reducing and lipid-lowering effects of icariin in NAFLD. Moreover, icariin might function through activating the AMPKα1/PGC-1α/GLTU4 pathway.
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Affiliation(s)
- Wei Lin
- Department of General Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
| | - Yin Jin
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
| | - Xiang Hu
- Department of Endocrinology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
| | - Erjiong Huang
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
| | - Qihan Zhu
- Department of Endocrinology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
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Guo CY, Wang KJ, Hsieh TL. Piezoelectric Sensor for the Monitoring of Arterial Pulse Wave: Detection of Arrhythmia Occurring in PAC/PVC Patients. SENSORS 2021; 21:s21206915. [PMID: 34696128 PMCID: PMC8540434 DOI: 10.3390/s21206915] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/09/2021] [Accepted: 10/15/2021] [Indexed: 01/23/2023]
Abstract
Previous studies have found that the non-invasive blood pressure measurement method based on the oscillometric method is inaccurate when an arrhythmia occurs. Therefore, we propose a high-sensitivity pulse sensor that can measure the hemodynamic characteristics of the pulse wave and then estimate the blood pressure. When an arrhythmia occurs, the hemodynamics of the pulse wave are abnormal and change the morphology of the pulse wave. Our proposed sensor can measure the occurrence of ectopic beats from the radial artery, and the detection algorithm can reduce the error of blood pressure estimation caused by the distortion of ectopic beats that occurs when the pulse wave is measured. In this study, we tested patients with premature atrial contraction (PAC) or premature ventricular contraction (PVC) and analyzed the morphology of the pulse waves when the sensor detected the ectopic beats. We discuss the advantages of using the Moens–Korteweg equation to estimate the blood pressure of patients with arrhythmia, which is different from the oscillometric method. Our research provides a possible arrhythmia detection method for wearable devices and can accurately estimate blood pressure in a non-invasive way during an arrhythmia.
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Affiliation(s)
- Cheng-Yan Guo
- College of Medicine, National Taiwan University, Taipei 10617, Taiwan;
| | - Kuan-Jen Wang
- Accurate Meditech Inc., New Taipei City 24159, Taiwan;
| | - Tung-Li Hsieh
- General Education Center, Ursuline College of Liberal Arts Education, Wenzao Ursuline University of Languages, Kaohsiung 80793, Taiwan
- Correspondence: ; Tel.: +886-7-342-6031 (ext. 7226)
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Martinelli I, Tomassoni D, Roy P, Di Cesare Mannelli L, Amenta F, Tayebati SK. Antioxidant Properties of Alpha-Lipoic (Thioctic) Acid Treatment on Renal and Heart Parenchyma in a Rat Model of Hypertension. Antioxidants (Basel) 2021; 10:antiox10071006. [PMID: 34201726 PMCID: PMC8300705 DOI: 10.3390/antiox10071006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 01/01/2023] Open
Abstract
Renal and cardiac impairments are frequent events in the presence of hypertension. Organ damage is mainly linked to oxidative stress due to high blood pressure and may be reduced by antioxidant supplementation. Alpha-lipoic acid (ALA) is one of most effective antioxidants. It is widely used as a nutritional supplement in a racemic mixture (+/–), even though the (+)-enantiomer is biologically active. This study was designed to investigate the effect of treatment with (+/–)-ALA and its enantiomers on renal and heart parenchyma in spontaneously hypertensive rats (SHR), using immunochemical and immunohistochemical techniques. The results confirmed that the oxidative mechanisms of organ alterations, due to hypertension, and characterized by glomerular and tubular lesions, left ventricular hypertrophy, and fibrosis but not by apoptosis were accompanied by proteins’ and nucleic acids’ oxidation. We found greater effectiveness of (+)-ALA compared to (+/−)-ALA in reducing oxidative stress, cardiac and renal damages in SHR. To conclude, these data propose (+)-ALA as one of the more appropriate antioxidant molecules to prevent renal and cardiac alterations associated with hypertension.
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Affiliation(s)
- Ilenia Martinelli
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (I.M.); (F.A.)
| | - Daniele Tomassoni
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (D.T.); (P.R.)
| | - Proshanta Roy
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (D.T.); (P.R.)
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Pharmaceutical and Child Health Area (NEUROFARBA), University of Florence, 50139 Florence, Italy;
| | - Francesco Amenta
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (I.M.); (F.A.)
| | - Seyed Khosrow Tayebati
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (I.M.); (F.A.)
- Correspondence:
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Ziegler R, Häusermann F, Kirchner S, Polonchuk L. Cardiac Safety of Kinase Inhibitors - Improving Understanding and Prediction of Liabilities in Drug Discovery Using Human Stem Cell-Derived Models. Front Cardiovasc Med 2021; 8:639824. [PMID: 34222360 PMCID: PMC8242589 DOI: 10.3389/fcvm.2021.639824] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/31/2021] [Indexed: 11/13/2022] Open
Abstract
Many small molecule kinase inhibitors (SMKIs) used to fight cancer have been associated with cardiotoxicity in the clinic. Therefore, preventing their failure in clinical development is a priority for preclinical discovery. Our study focused on the integration and concurrent measurement of ATP, apoptosis dynamics and functional cardiac indexes in human stem cell-derived cardiomyocytes (hSC-CMs) to provide further insights into molecular determinants of compromised cardiac function. Ten out of the fourteen tested SMKIs resulted in a biologically relevant decrease in either beating rate or base impedance (cell number index), illustrating cardiotoxicity as one of the major safety liabilities of SMKIs, in particular of those involved in the PI3K–AKT pathway. Pearson's correlation analysis indicated a good correlation between the different read-outs of functional importance. Therefore, measurement of ATP concentrations and apoptosis in vitro could provide important insight into mechanisms of cardiotoxicity. Detailed investigation of the cellular signals facilitated multi-parameter evaluation allowing integrative assessment of cardiomyocyte behavior. The resulting correlation can be used as a tool to highlight changes in cardiac function and potentially to categorize drugs based on their mechanisms of action.
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Affiliation(s)
- Ricarda Ziegler
- Pharmaceutical Sciences, Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Fabian Häusermann
- Pharmaceutical Sciences, Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Stephan Kirchner
- Pharmaceutical Sciences, Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Liudmila Polonchuk
- Pharmaceutical Sciences, Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
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Fan S, Hu K, Zhang D, Liu F. Interference of circRNA HIPK3 alleviates cardiac dysfunction in lipopolysaccharide-induced mice models and apoptosis in H9C2 cardiomyocytes. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1147. [PMID: 33240996 PMCID: PMC7576089 DOI: 10.21037/atm-20-5306] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background Circular RNAs (circRNAs) have been deemed to be microRNA (miRNA) sponges that are involved in multiple biological processes. It has not yet been corroborated whether the regulation of circular RNA HIPK3 (circHIPK3) can be used for the treatment of myocardial dysfunction. Methods In this study, we aimed to investigate the cardioprotective effects and apoptosis inhibition of circHIPK3 regulation on lipopolysaccharide (LPS)-induced myocarditis in vivo and vitro. C57BL/6 mice were exposed to LPS with or without knockdown of circHIPK3. Reverse transcription polymerase chain reaction (RT-PCR) testing was used to evaluate the expression of circHIPK3. Hematoxylin and eosin (HE) staining, immunohistochemistry (IHC), Cell Counting Kit-8 (CCK8), flow cytometry, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, enzyme-linked immunosorbent assay (ELISA), and western blotting were used to evaluate histopathology, proliferation, apoptosis, oxidative stress, and inflammatory response, respectively. Cardiac function and myocardial damage were also evaluated. Results It was proven that short hairpin RNA1 (shRNA1) was a superior interference of circHIPK3. The results revealed that knockdown of circHIPK3 effectively alleviated myocardial tissue damage, improved cardiac function, and suppressed cardiomyocyte apoptosis in the animal model of LPS-induced myocarditis. Furthermore, LPS-induced oxidative injuries and inflammation in the myocardium were also partly reversed after circHIPK3 knockdown. In vitro, being LPS-induced enhanced the levels of heart damage markers, simultaneously inhibited proliferation, promoted apoptosis, and stimulated oxidative stress and inflammation of H9C2 cells. Fortunately, the abnormalities mentioned were partly reversed following circHIPK3 knockdown. Conclusions In this study, we characterized the expression and regulation of circHIPK3 in LPS-induced myocarditis in the animal model and H9c2 cells. The results demonstrated that circHIPK3 expression is significantly upregulated when exposed to LPS in vivo and in vitro. Knockdown of circHIPK3 effectively alleviated LPS-induced myocarditis.
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Affiliation(s)
- Shunyang Fan
- Central Department of Cardiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kailun Hu
- Central Department of Cardiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Deyin Zhang
- Department of Breast Surgery, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Fuyun Liu
- Department of Pediatric Orthopaedics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Hu X, Zou W, Liu D, Qin G, Jiang L. The Down-Regulation of TrkB Alleviates the Malignant Biological Behavior and Cancer Stem-Like Property of Laryngeal Cancer. Cancer Manag Res 2020; 12:6865-6875. [PMID: 32801910 PMCID: PMC7415445 DOI: 10.2147/cmar.s260693] [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: 05/08/2020] [Accepted: 07/20/2020] [Indexed: 12/21/2022] Open
Abstract
Background This study aimed to evaluate the effect of TrkB down-regulation on the malignant biological behavior and stem-like characteristics of laryngeal cancer. Methods The relationship was analyzed between TrkB and clinicopathological parameters in patients with laryngeal cancer. The mRNA expressive levels of TrkB and miR-10a-5p were detected by qRT-PCR in laryngeal cancer tissues and cell lines. In vitro, Hep-2 and AMC-HN-8 cell proliferation, apoptosis and stem-like properties were detected by colony formation assay, flow cytometry, sphere formation, and Western blot, respectively. In vivo, the BALB/c nude mice model was used to evaluate the effect of TrkB on tumor growth. Results The results showed that TrkB was related to smoking history, clinical stage, and lymph node metastasis, but had nothing to do with the gender, age, and tumor location of patients with laryngeal cancer. TrkB was highly expressed and miR-10a-5p was lowly expressed in laryngeal cancer tissues and cell lines. Down-regulation of TrkB inhibited Hep-2 and AMC-HN-8 cell proliferation and sphere formation as well as enhanced apoptosis, The result showed that miR-10a-5p bound to the 3ʹ-UTR of BDNF by a dual-luciferase reporter assay. Down-regulation of miR-10a-5p induced up-regulation of TrkB promoting development of laryngeal cancer. In vivo, down-regulation of TrkB suppressed tumor growth and inhibited the expression of stem-like marker proteins and promoted apoptosis. Conclusion In conclusion, down-regulation of TrkB plays an important role in laryngeal cancer and is a promising target for future intervention strategies.
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Affiliation(s)
- Xiaoyan Hu
- Department of Pathogenic Biology, Southwest Medical University, Luzhou, Sichuan 646000, People's Republic of China
| | - Wujun Zou
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, People's Republic of China
| | - Dianzhong Liu
- Department of Clinical Laboratory, Affiliated Hospital of Stomatology, Southwest Medical University, Luzhou, Sichuan 646000, People's Republic of China
| | - Gang Qin
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, People's Republic of China
| | - Liang Jiang
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, People's Republic of China
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Mo G, He Y, Zhang X, Lei X, Luo Q. Diosmetin exerts cardioprotective effect on myocardial ischaemia injury in neonatal rats by decreasing oxidative stress and myocardial apoptosis. Clin Exp Pharmacol Physiol 2020; 47:1713-1722. [PMID: 32219867 PMCID: PMC7540525 DOI: 10.1111/1440-1681.13309] [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: 11/18/2019] [Revised: 03/11/2020] [Accepted: 03/18/2020] [Indexed: 12/30/2022]
Abstract
Myocardial injury caused by the myocardial ischaemia (MI) is still a troublesome condition in the clinic, including apoptosis, oxidative stress and inflammation. Diosmetin inhibits the cellular apoptosis and inflammatory response and enhances antioxidant activity. So, this study was designed to investigate the cardioprotective effects of diosmetin on MI model neonatal rats. Forty Sprague Dawley (SD) rats 7 days old were randomly divided into five groups. Four groups of rats received diosmetin (50, 100, and 200 mg/kg) or vehicle (MI group) after ischaemia. Another group received vehicle without ischaemia to serve as a control group. Rats were pretreated with diosmetin intraperitoneally for 7 days and intoxicated with isoproterenol (ISO, 85 mg/kg, sc) on the last 2 days. The expression of apoptotic molecules, myocardial systolic function index, antioxidant enzymes and myocardial enzyme was analyzed. Compared with the control group, the proliferation marker proteins of Ki67 were increased significantly (P < .05), the MI group significantly increased the cardiac apoptosis, oxidative stress and myocardial enzymes, and weakened myocardial contractility. The levels of p‐P65/P65 were increased significantly (P < .05) with decreased p‐AKT/AKT and p‐Nrf2/Nrf2 (P < .05). Nevertheless, pretreatment with diosmetin reversed these changes, especially high‐dose group. In summary, diosmetin has significant potential as a therapeutic intervention to ameliorate myocardial injury after MI and provides the rationale for further clinical studies.
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Affiliation(s)
- GuoLiang Mo
- Department of Pediatric, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yong He
- Department of Pediatric, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - XiaoQian Zhang
- The First Social Welfare introduction in Nan Chong, Nanchong, China
| | - Xia Lei
- Nobier Biotechnology Co.Ltd, Chengdu, China
| | - Qi Luo
- Department of Pediatric, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
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Tian Y, Shu J, Huang R, Chu X, Mei X. Protective effect of renal ischemic postconditioning in renal ischemic-reperfusion injury. Transl Androl Urol 2020; 9:1356-1365. [PMID: 32676420 PMCID: PMC7354320 DOI: 10.21037/tau-20-859] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background Renal ischemic postconditioning (RIPo) can protect the kidney from renal ischemia/reperfusion injury (RIRI). However, the underlying molecular mechanisms for RIPo in renal protection remained elusive. This study aimed to investigate the renoprotective effects of RIPo in an RIR rat model. Method The Sprague Dawley (SD) rats were randomly divided into three groups respectively: sham group, the RIRI group and the RIPo group. The levels of proteinuria, blood urea nitrogen (BUN), creatinine (Cr), malondialdehyde (MDA), superoxide dismutase (SOD), lactate dehydrogenase (LDH), reactive oxidative species (ROS), interleukins (IL)-6, IL-1β, and IL-18 were measured by ELISA. Apoptotic cells and caspase-3 positive cells were detected by TUNEL assay and immunohistochemistry, respectively. The protein expressive levels of caspase-3, caspase-9, ATG8, Beclin1, p62, LC3-II, P-P13K, P-AKT and P-mTOR were detected by western blot. Results Our results showed that pretreatment with RIPo significantly reduced ischemic pathological and morphological changes. The levels of proteinuria, BUN, and Cr were also significantly reduced by RIPo pretreatment. Besides, ATG8, LC3-II and Beclin-1 were upregulated in the RIPo group, but p62 was downregulated. Moreover, RIPo pretreatment resulted in higher levels of phosphorylated PI3K, Akt, and mTOR. These results showed that RIPo protects the kidneys of rats from IRI with suppressed apoptosis and activated autophagy. Mechanically, the activated PI3K/AKT/mTOR signaling pathway were activated. Conclusions Collectively, our data demonstrated that RIPo could suppress Inflammatory response, oxidative stress, apoptosis and induce autophagy as well as activate the PI3K/AKT/mTOR pathway, which may play an important role in renal protection against RIRI.
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Affiliation(s)
- Ying Tian
- Department of Urology Surgery, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610039, China
| | - Jia Shu
- Functional Inspection Division, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610039, China
| | - Ruizhen Huang
- Department of Cardiovascular, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610039, China
| | - Xin Chu
- Nursing Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610039, China
| | - Xuefeng Mei
- Department of Urology Surgery, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610039, China
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Zhou Q, Song J, Wang Y, Lin T. Remifentanil attenuates cardiac dysfunction, lipid peroxidation and immune disorder in rats with isoproterenol-induced myocardial injury via JNK/NF-KB p65 inhibition. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:551. [PMID: 32411774 PMCID: PMC7214888 DOI: 10.21037/atm-20-3134] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background Myocardial injury caused by myocardial ischemia (MI) is still a severe condition that can result in apoptosis, oxidative stress, and inflammation. Remifentanil is a selective, ultra-short-acting, µ-opioid receptor agonist opioid. It can improve sinusoidal heart rate patterns in the fetus, for bupivacaine-induced cardiotoxicity, and with lipopolysaccharide (LPS)-induced cardiomyocytes injuries. This study aimed to explore the cardioprotective effects of remifentanil in MI model rats. Methods Sprague Dawley (SD) rats were split into five groups at random, including a control group, Isop group, low-dose remifentanil treatment group (10 µg/kg), medium-dose remifentanil treatment group (20 µg/kg), and a high-dose remifentanil treatment group (40 µg/kg). The MI model was achieved by subcutaneously injecting rats with isoproterenol (85 mg/kg) for two consecutive days. With the expression of apoptotic molecules, myocardial systolic function index, inflammation, antioxidant enzymes, and the myocardial enzyme taken into account, the data was analyzed. Results After treatment with remifentanil, the left ventricular wall thickness (LVWT), left ventricular end-systolic volume (LVESV), left ventricular ejection fraction (LVEF), fraction shortening (FS), and heart rate (HR) were significantly increased in comparison with the Isop group. Creatine kinase-MB (CK-MB), Mb, and cTnl expressions were decreased. Meanwhile, the levels of cleaved caspase-3 and caspase-9 were decreased. Remarkably, the levels of reactive oxidative species (ROS), malondialdehyde (MDA), and lactate dehydrogenase (LDH) were observed to be repressed, while the levels of superoxide dismutase (SOD) was significantly increased. More importantly, the levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6, and interferon (IFN)-γ were decreased. Conclusions Remifentanil has significant potential as a therapeutic intervention strategy for ameliorating myocardial injury after MI and these findings provide the rationale for further clinical studies.
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Affiliation(s)
- Qin Zhou
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Junmei Song
- Department of Cardiac Function, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Yu Wang
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Tao Lin
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
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Szarka N, Toth L, Czigler A, Kellermayer Z, Ungvari Z, Amrein K, Czeiter E, Bali ZK, Tadepalli SA, Wahr M, Hernadi I, Koller A, Buki A, Toth P. Single Mild Traumatic Brain Injury Induces Persistent Disruption of the Blood-Brain Barrier, Neuroinflammation and Cognitive Decline in Hypertensive Rats. Int J Mol Sci 2019; 20:E3223. [PMID: 31262044 PMCID: PMC6651357 DOI: 10.3390/ijms20133223] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/19/2019] [Accepted: 06/28/2019] [Indexed: 12/11/2022] Open
Abstract
Traumatic brain injury (TBI) induces blood-brain barrier (BBB) disruption, which contributes to secondary injury of brain tissue and development of chronic cognitive decline. However, single mild (m)TBI, the most frequent form of brain trauma disrupts the BBB only transiently. We hypothesized, that co-morbid conditions exacerbate persistent BBB disruption after mTBI leading to long term cognitive dysfunction. Since hypertension is the most important cerebrovascular risk factor in populations prone to mild brain trauma, we induced mTBI in normotensive Wistar and spontaneously hypertensive rats (SHR) and we assessed BBB permeability, extravasation of blood-borne substances, neuroinflammation and cognitive function two weeks after trauma. We found that mTBI induced a significant BBB disruption two weeks after trauma in SHRs but not in normotensive Wistar rats, which was associated with a significant accumulation of fibrin and increased neuronal expression of inflammatory cytokines TNFα, IL-1β and IL-6 in the cortex and hippocampus. SHRs showed impaired learning and memory two weeks after mild TBI, whereas cognitive function of normotensive Wistar rats remained intact. Future studies should establish the mechanisms through which hypertension and mild TBI interact to promote persistent BBB disruption, neuroinflammation and cognitive decline to provide neuroprotection and improve cognitive function in patients with mTBI.
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Affiliation(s)
- Nikolett Szarka
- Department of Neurosurgery and Szentagothai Research Center, University of Pecs, Medical School, Ret u. 2, H-7623 Pecs, Hungary
- Institute for Translational Medicine, Medical School, University of Pecs, Szigeti ut 12, H-7624 Pecs, Hungary
- Clinical Medicine Doctoral School, University of Szeged, Tisza Lajos krt. 109., H-6725 Szeged, Hungary
| | - Luca Toth
- Department of Neurosurgery and Szentagothai Research Center, University of Pecs, Medical School, Ret u. 2, H-7623 Pecs, Hungary
- Institute for Translational Medicine, Medical School, University of Pecs, Szigeti ut 12, H-7624 Pecs, Hungary
| | - Andras Czigler
- Department of Neurosurgery and Szentagothai Research Center, University of Pecs, Medical School, Ret u. 2, H-7623 Pecs, Hungary
- Institute for Translational Medicine, Medical School, University of Pecs, Szigeti ut 12, H-7624 Pecs, Hungary
| | - Zoltan Kellermayer
- Department of Immunology and Biotechnology, University of Pecs, Medical School, Szigeti ut 12, H-7624 Pecs, Hungary
| | - Zoltan Ungvari
- Reynolds Oklahoma Center on Aging, Donald W. Reynolds Department of Geriatric Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Krisztina Amrein
- Department of Neurosurgery and Szentagothai Research Center, University of Pecs, Medical School, Ret u. 2, H-7623 Pecs, Hungary
| | - Endre Czeiter
- Department of Neurosurgery and Szentagothai Research Center, University of Pecs, Medical School, Ret u. 2, H-7623 Pecs, Hungary
- MTA-PTE Clinical Neuroscience MR Research Group, Ret u. 2, H-7623 Pecs, Hungary
| | - Zsolt Kristof Bali
- Translational Neuroscience Research Group, Szentagothai Research Center, University of Pecs, Ifjusag utja 20, H-7624 Pecs, Hungary
- Grastyan Translational Research Center, University of Pecs, Ifjusag utja 6, H-7624 Pecs, Hungary
| | - Sai Ambika Tadepalli
- Translational Neuroscience Research Group, Szentagothai Research Center, University of Pecs, Ifjusag utja 20, H-7624 Pecs, Hungary
| | - Matyas Wahr
- Cellular Neurobiology, Institute of Physiology, Medical School, University of Pecs, Szigeti ut 12, H-7624 Pecs, Hungary
| | - Istvan Hernadi
- Translational Neuroscience Research Group, Szentagothai Research Center, University of Pecs, Ifjusag utja 20, H-7624 Pecs, Hungary
- Grastyan Translational Research Center, University of Pecs, Ifjusag utja 6, H-7624 Pecs, Hungary
- Department of Experimental Neurobiology, Faculty of Sciences, University of Pecs, Ifjusag utja 6, H-7624 Pecs, Hungary
| | - Akos Koller
- Department of Neurosurgery and Szentagothai Research Center, University of Pecs, Medical School, Ret u. 2, H-7623 Pecs, Hungary
- Department of Morphology and Physiology, Faculty of Health Sciences, Semmelweis University, Ulloi ut 26, H-1085 Budapest, Hungary
- Department of Physiology, New York Medical College, Valhalla, NY 10595, USA
| | - Andras Buki
- Department of Neurosurgery and Szentagothai Research Center, University of Pecs, Medical School, Ret u. 2, H-7623 Pecs, Hungary
| | - Peter Toth
- Department of Neurosurgery and Szentagothai Research Center, University of Pecs, Medical School, Ret u. 2, H-7623 Pecs, Hungary.
- Institute for Translational Medicine, Medical School, University of Pecs, Szigeti ut 12, H-7624 Pecs, Hungary.
- Clinical Medicine Doctoral School, University of Szeged, Tisza Lajos krt. 109., H-6725 Szeged, Hungary.
- MTA-PTE Clinical Neuroscience MR Research Group, Ret u. 2, H-7623 Pecs, Hungary.
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