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Yalçın MB, Bora ES, Çakır A, Akbulut S, Erbaş O. Autophagy and anti-inflammation ameliorate diabetic neuropathy with Rilmenidine. Acta Cir Bras 2023; 38:e387823. [PMID: 38055406 DOI: 10.1590/acb387823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/25/2023] [Indexed: 12/08/2023] Open
Abstract
PURPOSE To evaluate the neuroprotective effects of Rilmenidine on diabetic peripheral neuropathy (DPN) in a rat model of diabetes induced by streptozotocin (STZ). METHODS STZ (60 mg/kg) was administered to adult Sprague-Dawley rats to induce diabetes. On the 30th day after STZ administration, electromyography (EMG) and motor function tests confirmed the presence of DPN. Group 1: Control (n = 10), Group 2: DM + 0.1 mg/kg Rilmenidine (n = 10), and Group 3: DM + 0.2 mg/kg Rilmenidine (n = 10) were administered via oral lavage for four weeks. EMG, motor function test, biochemical analysis, and histological and immunohistochemical analysis of sciatic nerves were then performed. RESULTS The administration of Rilmenidine to diabetic rats substantially reduced sciatic nerve inflammation and fibrosis and prevented electrophysiological alterations. Immunohistochemistry of sciatic nerves from saline-treated rats revealed increased perineural thickness, HMGB-1, tumor necrosis factor-α, and a decrease in nerve growth factor (NGF), LC-3. In contrast, Rilmendine significantly inhibited inflammation markers and prevented the reduction in NGF expression. In addition, Rilmenidine significantly decreased malondialdehyde and increased diabetic rats' total antioxidative capacity. CONCLUSIONS The findings of this study suggest that Rilmenidine may have therapeutic effects on DNP by modulating antioxidant and autophagic pathways.
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Affiliation(s)
- Mehmet Burak Yalçın
- Bahcelievler Memorial Hospital - Department of Orthopedics and Traumatology - Istanbul - Turkey
| | - Ejder Saylav Bora
- Izmir Ataturk Research and Training Hospital - Department of Emergency Medicine - Izmir - Turkey
| | - Adem Çakır
- Canakkale Mehmet Akif Ersoy State SBU Kartal Kosuyolu Training and Research Hospital - Department of Emergency Medicine - Canakkale - Turkey
| | - Sabiye Akbulut
- SBU Kartal Kosuyolu Training and Research - Hospital Department of Gastroenterology - Istanbul - Turkey
| | - Oytun Erbaş
- Demiroğlu Bilim University - Faculty of Medicine - Department of Physiology - Istanbul - Turkey
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Bilal B, Kirazlar M, Erdogan MA, Yigitturk G, Erbas O. Lacosamide exhibits neuroprotective effects in a rat model of Parkinson's disease. J Chem Neuroanat 2023; 132:102311. [PMID: 37442244 DOI: 10.1016/j.jchemneu.2023.102311] [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: 05/17/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/15/2023]
Abstract
BACKGROUND Parkinson's disease (PD) is a chronic and progressive neurodegenerative disorder that primarily affects the motor system. Although there are several treatments available to alleviate PD symptoms, there is currently no cure for the disease. Lacosamide, an anti-epileptic drug, has shown promising results in preclinical studies as a potential neuroprotective agent for PD. In this study, we aimed to investigate the neuroprotective effect of lacosamide in a murine model of PD. METHODS Twenty-one adult male rats were randomly divided into the following three groups (n = 7): 1 group received stereotaxical infusion of dimethyl sulfoxide (vehicle, group 1), and the others received stereotaxical infusion of rotenone (groups 2 and 3). The apomorphine-induced rotation test was applied to the rats after 10 days. Thereafter, group 2 was administered isotonic saline, whereas group 3 was administered lacosamide (20 mg/kg,i.p.) for 28 days. Apomorphine-induced rotation tests were performed to assess the effect of lacosamide on motor function. In addition, immunohistochemistry and biochemistry were used to assess the dopaminergic neuron loss in the substantia nigra and MDA, TNF-α and HVA levels, respectively. RESULTS In rats with Parkinson's disease induced by rotenone, levels of malondialdehyde and TNF-α significantly increased and HVA levels decreased, whereas in mice treated with lacosamide, levels of malondialdehyde and TNF-α significantly decreased and HVA levels increased. The apomorphine-induced rotation test scores of lacosamide-treated mice were lower compared with the untreated group. Furthermore, treatment with lacosamide significantly mitigated the degeneration of dopaminergic projections within the striatum originating from the substantia nigra and increased tyrosine hydroxylase (TH) immunofluorescence, indicative of preserved dopaminergic neuronal function. CONCLUSION In conclusion, our study provides evidence that lacosamide has a neuroprotective effect on the rat model of PD. Further studies are required to investigate the underlying mechanisms and evaluate the potential clinical use of lacosamide as a neuroprotective agent for PD.
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Affiliation(s)
- Burcin Bilal
- Izmir Katip Celebi University, Faculty of Medicine, Department of Physiology, Izmir, Turkey
| | - Mehmet Kirazlar
- Izmir Katip Celebi University, Faculty of Medicine, Department of Physiology, Izmir, Turkey
| | - Mumin Alper Erdogan
- Izmir Katip Celebi University, Faculty of Medicine, Department of Physiology, Izmir, Turkey.
| | - Gurkan Yigitturk
- Mugla Sıtkı Kocman University, Faculty of Medicine, Department of Histology and Embryology, Mugla, Turkey
| | - Oytun Erbas
- Istanbul Demiroglu Bilim University, Faculty of Medicine, Department of Physiology, Istanbul, Turkey
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Electrocorticographic and electrocardiographic evaluation of lacosamide in a penicillin-induced status epilepticus model. Epilepsy Res 2022; 180:106866. [DOI: 10.1016/j.eplepsyres.2022.106866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/21/2021] [Accepted: 01/17/2022] [Indexed: 11/17/2022]
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Erdogan A, Erdogan MA, Atasoy O, Erbas O. Effects of the Calcium Channel Blocker Otilonium Bromide on Seizure Activity in Rats With Pentylenetetrazole-Induced Convulsions. Neurochem Res 2021; 46:1717-1724. [PMID: 33811624 DOI: 10.1007/s11064-021-03310-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 03/16/2021] [Accepted: 03/20/2021] [Indexed: 10/21/2022]
Abstract
Millions of people suffer from drug-resistant epilepsy. New therapeutic approaches for removing this life-affecting disease are required. The activation of T-type calcium channels (TTCC) is one of the epileptogenesis mechanisms that cause epilepsy. So, we researched the effects of Otilonium bromide (OB), an antisposmolytic drug that inhibits TTCC, on seizure activity in rats with pentylenetetrazol (PTZ) induced convulsion. Randomly, 48 rats were divided into two groups; for electroencephalography (EEG) recordings and for behavioral assesment. Rats were treated with either intraperitoneal (IP) OB at two separate doses (25 mg/kg and 50 mg/kg) or placebo, and then pentylenetetrazole (IP), a potent seizure-inducing chemical administered to them. In our model we have measured rat seizure activity with EEG, the convulsion scala of Racine (RCS), the time of first myoclonic jerk (FMJ) and MDA levels to assess if OB has antiepileptic properties. The mean EEG spike wave percentage score reduced from 79.5% (placebo) to 59.2% (lower-dose) and 35.2% (higher-dose). FMJ had increased from a mean of 67.2 s (placebo), to 105.2 (lower-dose), 150.6 (higher-dose). RCS reduced from a mean of 5.12 (placebo) to 4.4 (lower-dose), 3.8 (higher-dose). MDA leves reduced from 84.5 nmol/gr to 51.09 nmol/gr (lower-dose), 33.2 nmol/gr (higher-dose). Compared to placebo, OB reduced significantly seizure activity at both doses, probably through blocking T-type calcium channels. All these results were statistically significant with < 0.0001 p-values. Otilonium bromide reduced seizure activity in rats with PTZ-induced convulsion. Therefore, the clinical role of OB and other TTCC inhibitors as potential anti-seizure drugs should be further investigated.
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Affiliation(s)
- Arife Erdogan
- Department of Emergency Medicine, Izmir Cigli Regional Training Hospital, Izmir, Turkey.
| | - Mumin Alper Erdogan
- Department of Physiology, Faculty of Medicine, Izmir Katip Celebi University, Izmir, Turkey
| | - Ozum Atasoy
- Department of Radiation Oncology, Istanbul Kartal Dr. Lutfı Kırdar Educatıon and Research Hospıtal, Istanbul, Turkey
| | - Oytun Erbas
- Faculty of Medicine, Department of Physiology, Demiroğlu Bilim University, Istanbul, Turkey
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Carona A, Bicker J, Silva R, Fonseca C, Falcão A, Fortuna A. Pharmacology of lacosamide: From its molecular mechanisms and pharmacokinetics to future therapeutic applications. Life Sci 2021; 275:119342. [PMID: 33713668 DOI: 10.1016/j.lfs.2021.119342] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/19/2021] [Accepted: 03/01/2021] [Indexed: 01/14/2023]
Abstract
Epilepsy is one of the most common brain disorders, affecting more than 50 million people worldwide. Although its treatment is currently symptomatic, the last generation of anti-seizure drugs is characterized by better pharmacokinetic profiles, efficacy, tolerability and safety. Lacosamide is a third-generation anti-seizure drug that stands out due to its good efficacy and safety profile. It is used with effectiveness in the treatment of partial-onset seizures with or without secondary generalization, primary generalized tonic-clonic seizures and off-label in status epilepticus. Despite scarcely performed until today, therapeutic drug monitoring of lacosamide is proving to be advantageous by allowing the control of inter and intra-individual variability and promoting a successful personalized therapy, particularly in special populations. Herein, the pharmacology, pharmacokinetics, and clinical data of lacosamide were reviewed, giving special emphasis to the latest molecular investigations underlying its mechanism of action and therapeutic applications in pathologies besides epilepsy. In addition, the pharmacokinetic characteristics of lacosamide were updated, as well as current literature concerning the high pharmacokinetic variability observed in special patient populations and that must be considered during treatment individualization.
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Affiliation(s)
- Andreia Carona
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal; University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research, Coimbra, Portugal
| | - Joana Bicker
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal; University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research, Coimbra, Portugal
| | - Rui Silva
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal; University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research, Coimbra, Portugal
| | - Carla Fonseca
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal; University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research, Coimbra, Portugal
| | - Amílcar Falcão
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal; University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research, Coimbra, Portugal
| | - Ana Fortuna
- University of Coimbra, Faculty of Pharmacy, Coimbra, Portugal; University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research, Coimbra, Portugal.
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Solmaz V, Kaya M, Uslu FB, Atasoy O, Erbaş O. Papaverine Has Therapeutic Potential for Sepsis-Induced Neuropathy in Rats, Possibly via the Modulation of HMGB1-RAGE Axis and Its Antioxidant Prosperities. J INVEST SURG 2020; 35:1-7. [PMID: 32842806 DOI: 10.1080/08941939.2020.1809751] [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: 05/06/2020] [Revised: 07/29/2020] [Accepted: 08/07/2020] [Indexed: 10/23/2022]
Abstract
AIM Our aim was to investigate the possible neuroprotective properties of papaverine in sepsis-induced critical illness neuropathy (SCIN) through the evaluation of various inflammatory biochemical markers, including interleukin 6 (IL-6), C-reactive protein (CRP), and tumor necrosis factor-alpha (TNF-α), and oxidative stress biomarkers, such as malondialdehyde (MDA) and lactic acid. Additionally, evaluation of the HMGB1/RAGE interactions in SCIN was another target of this research. METHOD To create a sepsis model, a procedure involving intraperitoneal injection of feces was performed on 48 rats. The rats were divided into four equal groups: sham operated, controls and those receiving 20 and 40 mg/kg/day papaverine. After five-day treatments, compound muscle action potential (CMAPs) with electroneuromyography (ENMG) was recorded in all rats. Following ENMG evaluations, the plasma levels of sRAGE, HMGB1, TNF-α, IL-6, CRP, MDA and lactic acid were measured. RESULTS TNF-α, CRP, IL-6, HMGB1, MDA, and lactic acid levels were significantly elevated in the SCIN group, and sRAGE levels were significantly decreased. In recipients of papaverine (20 and 40 mg/kg) treatment, these biochemical findings were improved. Furthermore, electrophysiological findings also showed significant improvement in both 20 and 40 mg/kg papaverine treated groups. CONCLUSION Papaverine demonstrates neuroprotective effects in a rat model of SCIN. Considering its anti-inflammatory and antioxidant properties, papaverine's neuroprotective effects possibly stem from the suppression of the RAGE-HMGB1 axis.
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Affiliation(s)
- Volkan Solmaz
- Department of Neurology, Memorial Hizmet Hospital, Istanbul, Turkey
| | - Mahmut Kaya
- Department of Internal Medicine, Memorial Hizmet Hospital, Istanbul, Turkey
| | - Fatma Betul Uslu
- Department of Anesthesiology, Batman State Hospital, Batman, Turkey
| | - Ozum Atasoy
- Radiation Oncology, Kartal Dr. Lutfi Kırdar Traning and Research Hospital, Istanbul, Turkey
| | - Oytun Erbaş
- Medical Faculty, Department of Physiology, Demiroğlu Bilim University, Istanbul, Turkey
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Sunnetci Silistre E, Erbas O. The Ameliorative Effects of Ascorbic Acid on Critical Illness Polyneuropathy in Rodent Sepsis Model. J Pediatr Intensive Care 2020; 9:265-270. [PMID: 33133742 DOI: 10.1055/s-0040-1710587] [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: 03/11/2020] [Accepted: 04/15/2020] [Indexed: 10/24/2022] Open
Abstract
Although the exact pathophysiology of critical illness polyneuropathy (CIP) is still unknown, there are several hypotheses, some of which are increased inflammation and oxidative stress. We used rodent sepsis model in which we induced sepsis through cecal ligation followed by cecal puncture. We then administered ascorbic acid (AA) and evaluated outcomes. The levels of malondialdehyde (MDA), tumor necrosis factor α (TNF-α), interleukins (IL)-6 in the plasma, and heat shock protein-70 (HSP-70) levels in the sciatic nerve were measured, and also electromyography analyses were performed. While plasma MDA, TNF-α, and IL-6 levels were decreased significantly with AA treatment, sciatic nerve levels of HSP-70 were significantly elevated in the AA group. A significant increase in compound muscle action potential (CMAP) amplitude and a significant decrease in CMAP latency were detected in the AA group. We observed healing effects of AA on a rat model of CIP and these effects seem to be related to its anti-inflammatory and antioxidant properties.
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Affiliation(s)
| | - Oytun Erbas
- Department of Physiology, Bilim University Medical Faculty, Istanbul, Turkey
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Savran M, Ozmen O, Erzurumlu Y, Savas HB, Asci S, Kaynak M. The Impact of Prophylactic Lacosamide on LPS-Induced Neuroinflammation in Aged Rats. Inflammation 2020; 42:1913-1924. [PMID: 31267274 DOI: 10.1007/s10753-019-01053-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Sepsis-induced central nervous system damage is called sepsis-associated encephalopathy (SAE). In addition to neuroinflammation, oxidative stress and apoptosis act in the development of SAE. In the current study, we evaluated the protective effects of lacosamide (LCM) on neuroinflammation induced by lipopolysaccharide (LPS). Twenty-four Wistar albino rats were divided into 3 groups as controls, LPS group (5 mg/kg i.p.), and LPS plus LCM group (5 mg/kg i.p and 40 mg/kg i.p, respectively). In the rat brain, LPS-induced tissue damage was revealed histopathologically as hyperemia and microhemorrhages. LCM pretreatment ameliorated these histopathological changes. LPS decreased brain TAS levels and significantly increased MDA, CRP, HSP, IL-1β, and TNF-α expressions in the cortex, hippocampus, and cerebellum. Western analysis revealed increased brain tissue levels of TNF-α, NF-Kβ, and caspase-3 following LPS. Prophylactic LCM treatment reversed these parameters including oxidative stress, inflammation, and apoptosis in the cortex, hippocampus, and cerebellum.
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Affiliation(s)
- Mehtap Savran
- Department of Pharmacology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey.
| | - O Ozmen
- Department of Pathology, Faculty of Veterinary Medicine, Mehmet Akif Ersoy University, Burdur, Turkey
| | - Y Erzurumlu
- Department of Biochemistry, Faculty of Pharmacy, Suleyman Demirel University, Isparta, Turkey
| | - H B Savas
- Department of Medical Biochemistry, Faculty of Medicine, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - S Asci
- Department of Neurology, Private Meddem Hospital, Isparta, Turkey
| | - M Kaynak
- Department of Pharmacology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
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Overall systematic approach to sepsis damages on urogenital tissues: protective power of lacosamide. Arch Gynecol Obstet 2019; 300:941-955. [PMID: 31435776 DOI: 10.1007/s00404-019-05262-1] [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: 04/10/2019] [Accepted: 08/06/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE The aim of the study was to evaluate the harmful effects of sepsis on the urogynecological tissues and the ability of Lacosamide (LCM) on Lipopolysaccharide (LPS)-induced cytokine production, oxidative stress and apoptotic pathways, in the experimental rat sepsis model. METHODS Twenty-four female Wistar albino rats (12 months old) were divided into 3 groups as follows: control group (Group I) (0.1 ml/oral and i.p. saline, single dose), sepsis group (Group II) (5 mg/kg LPS, i.p. single dose) and sepsis + LCM group (Group III) (5 mg/kg LPS, i.p. single dose and 40 mg/kg LCM). Six hours after the last LPS administration, the animals were sacrificed. Subsequently, the analyses of urogenital tissues total oxidant/antioxidant status, histopathological and immunohistochemical analyses were performed. RESULTS Total oxidant capacity (TOC) and oxidative stress index (OSI) values in the urogenital tissues were increased in the urogenital tissues in Group II [Total antioxidant capacity (TAC) was decreased] compared to group I (p < 0.05). LCM improved these values (p < 0.05). The immunohistochemical markers (Tumor Necrosis Factor-alpha (TNF-α), interleukin-1 beta (IL-1β), heat shock protein 70 (HSP-70), C-reactive protein (CRP), Malondialdehyde (MDA) were significantly increased in Group II (p < 0.001). With the administration of LCM (Group III), the expressions of above-mentioned markers were markedly decreased (p < 0.001). Marked hyperemia and slight hemorrhages with neutrophil leukocyte infiltrations were seen histopathologically in Group II. LCM treatment ameliorated the pathological findings. CONCLUSION These findings demonstrated that sepsis caused oxidative stress, apoptosis and inflammation in the urogenital tissues. We revealed that LCM ameliorated the damage caused by sepsis in urogenital tissue.
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Al-Massri KF, Ahmed LA, El-Abhar HS. Pregabalin and lacosamide ameliorate paclitaxel-induced peripheral neuropathy via inhibition of JAK/STAT signaling pathway and Notch-1 receptor. Neurochem Int 2018; 120:164-171. [PMID: 30118739 DOI: 10.1016/j.neuint.2018.08.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 07/22/2018] [Accepted: 08/13/2018] [Indexed: 12/12/2022]
Abstract
Anticonvulsant drugs such as pregabalin (PGB) and lacosamide (LCM), exhibit potent analgesic effects in diabetic neuropathy; however, their possible role/mechanisms in paclitaxel (PTX)-induced peripheral neuropathy have not been elucidated, which is the aim of the present study. Neuropathic pain was induced in rats by injecting PTX (2 mg/kg, i. p) on days 0, 2, 4 and 6. Forty eight hours after the last dose of PTX, rats were treated orally with 30 mg/kg/day of either PGB or LCM for 21 days. Both therapies improved thermal hyperalgesia and cold allodynia induced by PTX. Interestingly, LCM therapy showed no motor impairment that was observed upon using PGB, as demonstrated using rotarod test. Treatment with PGB or LCM restored the sciatic nerve content of the depleted total antioxidant capacity (TAC) and nerve growth factor (NGF), and lessened the elevated contents of nuclear factor kappa B p65 (NF-kB p65), tumor necrosis factor-α (TNF-α), and active caspase-3. On the molecular level, the drugs reduced the protein expression of Notch1 receptor, phosphorylated p38 mitogen-activated protein kinase (p-p38-MAPK), and the trajectory interleukin-6/phosphorylated janus kinase 2/phosphorylated signal transducer and activator of transcription 3 (IL-6/p-JAK2/p-STAT3). Therefore, the current study demonstrated a pivotal role for LCM in the management of PTX-induced peripheral neuropathy similar to PGB, but without motor adverse effects via the inhibition of oxidative stress, inflammation and apoptosis, as well as IL-6/JAK/STAT pathway and Notch1 receptor over-expression.
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Affiliation(s)
- Khaled F Al-Massri
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Egypt.
| | - Lamiaa A Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Egypt.
| | - Hanan S El-Abhar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Egypt.
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Yin JT, Wan B, Liu DD, Wan SX, Fu HY, Wan Y, Zhang H, Chen Y. Emodin alleviates lung injury in rats with sepsis. J Surg Res 2016; 202:308-14. [PMID: 27229105 DOI: 10.1016/j.jss.2015.12.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 11/25/2015] [Accepted: 12/29/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND Sepsis has high morbidity and mortality. The aim of this study was to investigate whether emodin, an anthraquinone derived from Chinese herb, exerts protective effects on lung injury in rat model of sepsis. MATERIALS AND METHODS Forty-eight male Wistar rats were randomly divided into four groups (n = 12): normal group, sham-operated group, cecal ligation and puncture (CLP) model group, and emodin-treated group. Saline or emodin (25 mg/kg) was injected intraperitoneally 0.5 h before CLP. The rats were sacrificed 48 h after CLP. Lung wet-to-dry weight ratio and pathologic changes in the lung were examined, the contents of malondialdehyde and myeloperoxidase in lung tissue were detected, serum tumor necrosis factor alpha and interleukin 6 levels were measured by enzyme-linked immunosorbent assay, and the phosphorylation of p38 mitogen-activated protein kinase (p38 MAPK) was detected by Western blot analysis. RESULTS Compared with control group, CLP group exhibited higher wet-to-dry weight ratio and water content in the lung (P < 0.01), but these indexes were reduced and pathologic changes in the lung were relieved in the emodin-treated group. In addition, lung malondialdehyde and myeloperoxidase contents, serum levels of tumor necrosis factor alpha and interleukin 6, and phosphorylation of p38 MAPK increased in the CLP group but decreased in the emodin-treated group (P < 0.05). CONCLUSIONS Emodin exerts protective effects on lung injury in septic rats, which is related to the inhibition of p38 MAPK pathway and the reduction of oxidative stress and inflammation response during sepsis.
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Affiliation(s)
- Jiang-Tao Yin
- Department of ICU, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Bing Wan
- Department of ICU, Affiliated Hospital of Jiangsu University, Zhenjiang, China.
| | - Da-Dong Liu
- Department of ICU, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Sheng-Xia Wan
- Department of ICU, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Hai-Yan Fu
- Department of General Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yin Wan
- Clinical laboratory, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Hao Zhang
- Emergency Medicine Center, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yikun Chen
- Emergency Medicine Center, Affiliated Hospital of Jiangsu University, Zhenjiang, China
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