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https://www.readbyqxmd.com/read/29344655/protective-effects-of-osthole-against-inflammation-induced-by-lipopolysaccharide-in-bv2-cells
#1
Yuxin Bao, Xiaolin Meng, Fangning Liu, Fei Wang, Jinhui Yang, Haiyu Wang, Guanghong Xie
Inflammation and oxidative stress are implicated in the development of neurodegenerative diseases. Osthole is a compound that is extracted from She Chuang Zi, which is a type of traditional Chinese medicine. Osthole has previously been demonstrated to exhibit anticancer activities and has a low toxicity. However, to the best of our knowledge, the anti‑inflammatory effects of osthole in microglial cells have not been investigated extensively. The aim of the present study was to investigate the potential protective effects of osthole against inflammation induced by lipopolysaccharide (LPS) in microglial cells...
January 17, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29336940/myeloperoxidase-its-role-for-host-defense-inflammation-and-neutrophil-function
#2
REVIEW
Yasuaki Aratani
Myeloperoxidase (MPO) is a heme-containing peroxidase expressed mainly in neutrophils and to a lesser degree in monocytes. In the presence of hydrogen peroxide and halides, MPO catalyzes the formation of reactive oxygen intermediates, including hypochlorous acid (HOCl). The MPO/HOCl system plays an important role in microbial killing by neutrophils. In addition, MPO has been demonstrated to be a local mediator of tissue damage and the resulting inflammation in various inflammatory diseases. These findings have implicated MPO as an important therapeutic target in the treatment of inflammatory conditions...
January 11, 2018: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29328478/arctigenin-exerts-protective-effects-against-myocardial-infarction-via-regulation-of-inos-cox%C3%A2-2-erk1-2-and-ho%C3%A2-1-in-rats
#3
Yanmin Zhang, Yong Yang
The present study aimed to determine the protective effects of arctigenin against myocardial infarction (MI), and its effects on oxidative stress and inflammation in rats. Left anterior coronary arteries of Sprague‑Dawley rats were ligated, in order to generate an acute MI (AMI) model. Arctigenin was administered to AMI rats at 0, 50, 100 or 200 µmol/kg. Western blotting and ELISAs were performed to analyze protein expression and enzyme activity. Arctigenin was demonstrated to effectively inhibit the levels of alanine transaminase, creatine kinase‑MB and lactate dehydrogenase, and to reduce infarct size in AMI rats...
January 10, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29309760/heme-oxygenase-1-induction-by-rosiglitazone-via-pkc%C3%AE-ampk%C3%AE-p38-mapk%C3%AE-sirt1-ppar%C3%AE-pathway-suppresses-lipopolysaccharide-mediated-pulmonary-inflammation
#4
Rou-Ling Cho, Wei-Ning Lin, Chen-Yu Wang, Chien-Chung Yang, Li-Der Hsiao, Chih-Chung Lin, Chuen-Mao Yang
HO-1 (heme oxygenase-1), an antioxidant enzyme, induced by rosiglitazone (PPAR ligands) can be a potential treatment of inflammation. However, the mechanisms of rosiglitazone-induced HO-1 expression in human pulmonary alveolar epithelial cells (HPAEpiCs) remain largely unknown. In this study, we found that upregulation of HO-1 in vitro or in vivo by rosiglitazone attenuated VCAM-1 gene expression and monocyte adhesion to HPAEpiCs challenged with lipopolysaccharide (LPS). The inhibitory effects of rosiglitazone on LPS-mediated responses were reversed by transfection with HO-1 siRNA...
January 5, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29305861/role-of-thyroid-transcription-factor-1-in-transcriptional-regulation-of-heme-oxygenase-1
#5
Bora Jeong, Han Rae Kim, Nan Seong Choi, Byong Seo Park, Hyejin Eom, Jeong Woo Park, Jae Geun Kim, Byung Ju Lee
Here, we report thyroid transcription factor 1 (TTF-1) as an important transcription factor for the expression of heme oxygenase-1 (HO-1). HO-1 is a well-known cytoprotective enzyme against inflammation. We observed that HO-1 co-expressed with TTF-1 in mouse hypothalamic cells. Results from luciferase and chromatin immunoprecipitation assays revealed that TTF-1 directly activated HO-1 transcription by binding to binding domains in the 5'-flanking region of the HO-1 gene. A proinflammatory cytokine, tumor necrosis factor-alpha (TNF-α), induced nuclear translocation of TTF-1 and increased binding affinity of TTF-1 to its binding sites on the HO-1 gene...
January 3, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29286084/petasites-japonicus-bakkenolide-b-inhibits-lipopolysaccharide%C3%A2-induced-pro%C3%A2-inflammatory-cytokines-via-ampk-nrf2-induction-in-microglia
#6
Sun Young Park, Min Hyun Choi, Geuntae Park, Young-Whan Choi
Abnormal neuroinflammatory responses have diverse roles in neuronal death, oxidative stress and neurodegenerative diseases, such as Alzheimer's and Parkinson's disease. Microglia regulate these responses via molecular signaling cascades that involve inflammatory cytokines and complement proteins. Bakkenolide B from Petasites japonicus exhibits significant anti‑inflammatory and anti‑allergic bioactivities. The present study investigated the anti‑neuroinflammatory effects and underlying molecular mechanisms of bakkenolide B on the lipopolysaccharide (LPS)‑mediated neuroinflammatory response in microglia...
December 28, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29260265/schisandrin-c-enhances-mitochondrial-biogenesis-and-autophagy-in-c2c12-skeletal-muscle-cells-potential-involvement-of-anti-oxidative-mechanisms
#7
Jeong-Seok Kim, Ho-Keun Yi
The molecular study of muscles is needed to overcome chronic inflammation and maintenance of muscles in the human body. Schisandrin C is a pharmacological compound derived from the fruit of Schisandra chinensis and has many characteristics including anti-inflammation, anti-tumor, and anti-oxidation. However, the cellular and molecular mechanisms of Schisandrin C are still not well understood especially in skeletal muscle. Therefore, the present study was evaluated whether the properties of Schisandrin C in C2C12 skeletal muscle cells involved maintenance of cellular homeostasis and protection against oxidative damage...
December 19, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29249571/redox-functions-of-heme-oxygenase-1-and-biliverdin-reductase-in-diabetes
#8
REVIEW
Luc Rochette, Marianne Zeller, Yves Cottin, Catherine Vergely
In patients with diabetes, the hyperglycemia-driven excess generation of reactive oxygen species (ROS) induces oxidative stress (OS) in a variety of tissues. OS is closely associated with chronic inflammation and has a key role in the pathogenesis of vascular complications. The enzymes that generate ROS and gasotransmitters are redox regulated and are implicated in cellular signaling. As a result of cellular metabolism, cells produce significant amounts of carbon monoxide (CO), mainly from heme degradation catalyzed by heme oxygenases (HOs)...
December 14, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/29247123/taurine-chloramine-potentiates-phagocytic-activity-of-peritoneal-macrophages-through-up-regulation-of-dectin-1-mediated-by-heme-oxygenase-1-derived-carbon-monoxide
#9
Seung Hyeon Kim, Xiancai Zhong, Wonki Kim, Kyeojin Kim, Young-Ger Suh, Chaekyun Kim, Yeonsoo Joe, Hun Taeg Chung, Young-Nam Cha, Young-Joon Surh
Resolution of inflammation that occurs after microbial infection or tissue damage is an important physiologic process in maintaining or restoring host homeostasis. Taurine chloramine (TauCl) is formed by a reaction between taurine and hypochlorite in leukocytes, and it is especially abundant in activated neutrophils that encounter an oxidative burst. As neutrophils undergo apoptosis, TauCl is released to the extracellular matrix at the inflamed sites, thereby affecting coexisting macrophages in the inflammatory microenvironment...
December 15, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29243793/a-new-antioxidant-formulation-reduces-the-apoptotic-and-damaging-effect-of-cigarette-smoke-extract-on-human-bronchial-epithelial-cells
#10
L Vanella, G Li Volti, A Distefano, M Raffaele, V Zingales, R Avola, D Tibullo, I Barbagallo
OBJECTIVE: In this study we evaluated the possible protective effect of an antioxidant formulation containing microfiltered milk derived polypeptides, Curcumin, Vitamin B2, Carnitine and N-Acetyl-cysteine (NAC) in an in vitro model of chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS: Human bronchial epithelial cells (16HBE) were used in this study. Cells were treated for 24 h in the presence or absence of 10% of cigarette smoke extract (CSE) and in the presence or absence of antioxidant formulation...
December 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29241205/glaucocalyxin-b-alleviates-lipopolysaccharide-induced-parkinson-s-disease-by-inhibiting-tlr-nf-%C3%AE%C2%BAb-and-activating-nrf2-ho-1-pathway
#11
Wei Xu, Deyu Zheng, Yuanyuan Liu, Ji Li, Li Yang, Xiuli Shang
BACKGROUND/AIMS: Parkinson's disease (PD) is a common neurodegenerative disease in the old population, characterized by dopaminergic neuron loss, inflammation and oxidative stress injury in the substantia nigra. Glaucocalyxin B (GLB), an ent-kauranoid diterpenoid isolated from Rabdosia japonica, has anti-inflammation and anti-tumor effects. However, its effects on PD remain unclear. METHODS: PD was introduced in rats via injection of lipopolysaccharide (LPS) into cerebral corpus striatum, and GLB was given intracerebroventricularly to these rats...
December 12, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29221667/interleukin-27-and-interleukin-37-are-elevated-in-sickle-cell-anemia-patients-and-inhibit-in-vitro-secretion-of-interleukin-8-in-neutrophils-and-monocytes
#12
A E Alagbe, A S Justo Junior, L P Ruas, W V Tonassé, R M Santana, T H C Batista, I F Domingos, A S Araujo, M A C Bezerra, M N N Santos, M H S L Blotta
BACKGROUND AND OBJECTIVE: Inflammation is implicated in the pathogenesis of most complications seen in sickle cell anemia (SCA) patients. We aimed to evaluate serum levels of two newly discovered anti-inflammatory cytokines (IL-27 and IL-37), and pro-inflammatory cytokines among Brazilian SCA patients that are not on hydroxyurea therapy (HbSS), compared with hydroxyurea-treated patients (HbSSHU) and healthy controls (HbAA). Furthermore, we demonstrated the effect of IL-27, IL-37, and heme on in vitro secretions of IL-8 in human neutrophils and monocytes...
December 5, 2017: Cytokine
https://www.readbyqxmd.com/read/29220411/hexahydrocurcumin-protects-against-cerebral-ischemia-reperfusion-injury-attenuates-inflammation-and-improves-antioxidant-defenses-in-a-rat-stroke-model
#13
Piyawadee Wicha, Jiraporn Tocharus, Adchara Janyou, Jinatta Jittiwat, Chatchawan Changtam, Apichart Suksamrarn, Chainarong Tocharus
The purpose of the present experiment was to investigate whether hexahydrocurcumin (HHC) attenuates brain damage and improves functional outcome via the activation of antioxidative activities, anti-inflammation, and anti-apoptosis following cerebral ischemia/reperfusion (I/R). In this study, rats with cerebral I/R injury were induced by a transient middle cerebral artery occlusion (MCAO) for 2 h, followed by reperfusion. The male Wistar rats were randomly divided into five groups, including the sham-operated, vehicle-treated, 10 mg/kg HHC-treated, 20 mg/kg HHC-treated, and 40 mg/kg HHC-treated I/R groups...
2017: PloS One
https://www.readbyqxmd.com/read/29209167/heme-oxygenase-1-induction-by-carbon-monoxide-releasing-molecule-3-suppresses-interleukin-1%C3%AE-mediated-neuroinflammation
#14
Chih-Chung Lin, Chien-Chung Yang, Li-Der Hsiao, Ssu-Yu Chen, Chuen-Mao Yang
Neurodegenerative disorders and brain damage are initiated by excessive production of reactive oxygen species (ROS), which leads to tissue injury, cellular death and inflammation. In cellular anti-oxidant systems, heme oxygenase-1 (HO-1) is an oxidative-sensor protein induced by ROS generation or carbon monoxide (CO) release. CO releasing molecules (CORMs), including CORM-3, exert anti-oxidant and anti-inflammatory effects. However, the molecular mechanisms of CORM-3-induced HO-1 expression and protection against interleukin (IL)-1β-induced inflammatory responses have not been fully elucidated in rat brain astrocytes (RBA-1)...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29203367/cross-talk-between-hydrogen-sulfide-and-carbon-monoxide-in-the-mechanism-of-experimental-gastric-ulcers-healing-regulation-of-gastric-blood-flow-and-accompanying-inflammation
#15
Marcin Magierowski, Katarzyna Magierowska, Magdalena Hubalewska-Mazgaj, Marcin Surmiak, Zbigniew Sliwowski, Mateusz Wierdak, Slawomir Kwiecien, Anna Chmura, Tomasz Brzozowski
Hydrogen sulfide (H2S) and carbon monoxide (CO) exert gastroprotection against acute gastric lesions. We determined the cross-talk between H2S and CO in gastric ulcer healing process and regulation of gastric blood flow (GBF) at ulcer margin. Male Wistar rats with acetic acid-induced gastric ulcers were treated i.g. throughout 9 days with vehicle (control), NaHS (0.1-10 mg/kg) +/- zinc protoporphyrin (ZnPP, 10 mg/kg), d,l-propargylglycine (PAG, 30 mg/kg), CO-releasing CORM-2 (2.5 mg/kg) +/- PAG. GBF was assessed by laser flowmetry, ulcer area was determined by planimetry/histology...
December 1, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29202856/sulfosuccinimidyl-oleate-sodium-is-neuroprotective-and-alleviates-stroke-induced-neuroinflammation
#16
Hiramani Dhungana, Mikko T Huuskonen, Merja Jaronen, Sighild Lemarchant, Humair Ali, Velta Keksa-Goldsteine, Gundars Goldsteins, Katja M Kanninen, Jari Koistinaho, Tarja Malm
BACKGROUND: Ischemic stroke is one of the main causes of death and disability worldwide. It is caused by the cessation of cerebral blood flow resulting in the insufficient delivery of glucose and oxygen to the neural tissue. The inflammatory response initiated by ischemic stroke in order to restore tissue homeostasis in the acute phase of stroke contributes to delayed brain damage. METHODS: By using in vitro models of neuroinflammation and in vivo model of permanent middle cerebral artery occlusion, we demonstrate the neuroprotective and anti-inflammatory effects of sulfosuccinimidyl oleate sodium (SSO)...
December 4, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29193412/role-of-resveratrol-in-regulation-of-cellular-defense-systems-against-oxidative-stress
#17
REVIEW
Van-Long Truong, Mira Jun, Woo-Sik Jeong
Resveratrol, a natural polyphenolic compound, is found in various kinds of fruits, plants, and their commercial products such as red wine. It has been demonstrated to exhibit a variety of health-promoting effects including prevention and/or treatment of cardiovascular diseases, inflammation, diabetes, neurodegeneration, aging, and cancer. Cellular defensive properties of resveratrol can be explained through its ability of either directly neutralizing reactive oxygen species/reactive nitrogen species (ROS/RNS) or indirectly upregulating the expression of cellular defensive genes...
November 28, 2017: BioFactors
https://www.readbyqxmd.com/read/29189483/heme-oxygenase-1-attenuates-hypoxia-reoxygenation-injury-in-mice-liver-sinusoidal-endothelial-cells
#18
Siming Qu, Bo Yuan, Hongbin Zhang, Hanfei Huang, Zhong Zeng, Shikun Yang, Jie Ling, Li Jin, Pu Wu
BACKGROUND: Heme oxygenase 1 (HO-1), a heat shock protein, can be involved in the resolution of inflammation by modulating cytokine expression and apoptotic cell death. Based on recent evidence that liver sinusoidal endothelial cells (LSECs) is the critical target in early period of liver ischemia-reperfusion injury (IRI), this study aims to clarify whether overexpression of HO-1 gene provides a protective effect on mice LSECs. METHOD: LSECs were transfected with adenovirus vectors encoding mice HO-1 gene (Ad-HO-1) or green fluorescent protein (Ad-EGFP)...
November 20, 2017: Transplantation
https://www.readbyqxmd.com/read/29168081/high-glucose-stimulates-expression-of-mfhas1-to-mitigate-inflammation-via-akt-ho-1-pathway-in-human-umbilical-vein-endothelial-cells
#19
Hui-Hui Wang, Peng-Fei Sun, Wan-Kun Chen, Jing Zhong, Qi-Qing Shi, Mei-Lin Weng, Duan Ma, Chang-Hong Miao
Hyperglycemia is a highly dangerous factor to various diseases, even resulting in death of people. Inflammation plays a key role in this process. The aim of this study was to explore the role of malignant fibrous histiocytoma amplified sequence 1 (MFHAS1) in high-glucose induced inflammation. Our research showed that high glucose stimulated the expression of MFHAS1, and overexpression of MFHAS1 can attenuate high-glucose induced inflammation in endothelial cells by decreasing the secretion of cytokines interleukin-1β (IL-1β), interleukin-1α (IL-1α), adhesion molecule intercellular adhesion molecule-1 (ICAM), interleukin-6 (IL-6), interleukin-8 (IL-8), and chemokine ligand 1 (CXCL-1)...
November 22, 2017: Inflammation
https://www.readbyqxmd.com/read/29161661/chlorogenic-acid-prevents-diabetic-nephropathy-by-inhibiting-oxidative-stress-and-inflammation-through-modulation-of-the-nrf2-ho-1-and-nf-%C3%A4-b-pathways
#20
Liping Bao, Jushuang Li, Dongqing Zha, Lian Zhang, Ping Gao, Tao Yao, Xiaoyan Wu
Oxidative and inflammatory damage have been suggested to play important roles in the pathogenesis of diabetic nephropathy (DN). Chlorogenic acid (CGA) is one of the most abundant polyphenols and has known immunoprotective, antioxidant and anti-inflammatory properties. In the present study, animal experiments were designed to examine the protective effects of CGA in DN, and cellular experiments were designed to explore the underlying mechanisms. CGA significantly attenuated diabetic renal damage based on histological pathology and molecular biological methods...
November 18, 2017: International Immunopharmacology
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