127,734 results match your criteria lipopolysaccharide

Effects of Ultrashort Wave Therapy on Inflammation and Macrophage Polarization after Acute Lung Injury in Rats.

Bioelectromagnetics 2021 Jun 15. Epub 2021 Jun 15.

Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.

Acute lung injury (ALI) features dysregulated pulmonary inflammation. Ultrashort waves (USWs) exert anti-inflammatory effects but no studies have evaluated their activity in ALI. Herein, we used an in vivo lipopolysaccharide (LPS)-induced ALI model to investigate whether the anti-inflammatory activity of USWs is mediated by altering the polarization of M1 to M2 macrophages. Read More

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Synthesis and pharmacological evaluation of pomalidomide derivatives useful for sickle cell disease treatment.

Bioorg Chem 2021 Jun 10;114:105077. Epub 2021 Jun 10.

São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara 14800-903, Brazil. Electronic address:

Fetal hemoglobin (HbF) induction constitutes a valuable and validated approach to treat the symptoms of sickle cell disease (SCD). Here, we synthesized pomalidomide-nitric oxide (NO) donor derivatives (3a-f) and evaluated their suitability as novel HbF inducers. All compounds demonstrated different capacities of releasing NO, ranging 0. Read More

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Noreudesmane sesquiterpenoids from Artemisia hedinii and their anti-inflammatory activities.

Fitoterapia 2021 Jun 12:104961. Epub 2021 Jun 12.

State Key Laboratory of Drug Research, and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China. Electronic address:

Ten undescribed noreudesmane-type sesquiterpenoids, including eight 12,13-dinoreudesmanes and a pair of 11,12,13-trinoreudesmane epimers were isolated from the whole plant of Artemisia hedinii. Their structures were elucidated by extensive analysis of spectroscopic data, including MS, 1D and 2D NMR, and their absolute configurations were confirmed by X-ray diffraction experiments and DFT calculations. Compounds 1-5, 7-10 were evaluated for their anti-inflammatory activities in lipopolysaccharide (LPS)-stimulated murine macrophages RAW264. Read More

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Niujiaodihuang Detoxify Decoction inhibits ferroptosis by enhancing glutathione synthesis in acute liver failure models.

J Ethnopharmacol 2021 Jun 12:114305. Epub 2021 Jun 12.

School of Pharmacy,Guangdong Medical University,Dongguan 524023,China. Electronic address:

Ethnopharmacological Relevance: Niujiaodihuang Detoxify Decoction (NDD) is an integrated traditional Chinese medicine prescription that has been used as a therapeutic agent for the treatment of acute liver failure (ALF). However, the mechanisms underlying its action remain unclear.

Aim Of The Study: To determine the protective effect of NDD on D-galactosamine/lipopolysaccharide (D-GalN/LPS)-induced ALF and explore the underlying mechanisms. Read More

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A PGE-MEF2A axis enables context-dependent control of inflammatory gene expression.

Immunity 2021 Jun 9. Epub 2021 Jun 9.

Vita-Salute San Raffaele University, Milan, Italy; San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), Milan, Italy; Genomics of the Innate Immune System Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy. Electronic address:

Tight control of inflammatory gene expression by antagonistic environmental cues is key to ensure immune protection while preventing tissue damage. Prostaglandin E (PGE) modulates macrophage activation during homeostasis and disease, but the underlying mechanisms remain incompletely characterized. Here we dissected the genomic properties of lipopolysaccharide (LPS)-induced genes whose expression is antagonized by PGE. Read More

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Levels of Trimethylamine N-Oxide Remain Elevated Long Term After Left Ventricular Assist Device and Heart Transplantation and Are Independent From Measures of Inflammation and Gut Dysbiosis.

Circ Heart Fail 2021 Jun 15;14(6):e007909. Epub 2021 Jun 15.

Department of Epidemiology, Mailman School of Public Health (S.M., R.T.D.), Columbia University Irving Medical Center, New York, NY.

Background: Trimethylamine N-oxide (TMAO)-a gut-derived metabolite-is elevated in heart failure (HF) and linked to poor prognosis. We investigated variations in TMAO in HF, left ventricular assist device (LVAD), and heart transplant (HT) and assessed its relation with inflammation, endotoxemia, oxidative stress, and gut dysbiosis.

Methods: We enrolled 341 patients. Read More

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Dendrocrepidamine, a novel octahydroindolizine alkaloid from the roots of .

J Asian Nat Prod Res 2021 Jun 15:1-8. Epub 2021 Jun 15.

School of Traditional Chinese Medicines, China Pharmaceutical University, Nanjing 211198, China.

A novel octahydroindolizine alkaloid, named dendrocrepidamine () with an unusual 18,19,19'-cyclopropanone-dendrocrepine skeleton, was isolated from the ethanol extract of the roots of , along with six known compounds (-). The structure of was elucidated through HR-ESIMS, NMR spectroscopic data and computational calculations. All compounds were examined for their inhibitory effects on nitric oxide (NO) production induced by lipopolysaccharide (LPS) in RAW264. Read More

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Chemical structure and anti-inflammatory activity of a branched polysaccharide isolated from Phellinus baumii.

Carbohydr Polym 2021 Sep 16;268:118214. Epub 2021 May 16.

Yangzhou Borui Saccharide Biotech Co., Ltd, Yangzhou 225000, Jiangsu, China.

Phellinus baumii is used to treat inflammatory bowel disease (IBD) and gastroenteritis. In this study, a 46 kDa heteropolysaccharide SHPS-1 was isolated from fruiting bodies of P. baumii. Read More

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September 2021

Long non-coding RNA CDKN2B-AS1 enhances LPS-induced apoptotic and inflammatory damages in human lung epithelial cells via regulating the miR-140-5p/TGFBR2/Smad3 signal network.

BMC Pulm Med 2021 Jun 14;21(1):200. Epub 2021 Jun 14.

Department of Intensive Care Unit, The Second Clinical Medical College, Jingzhou Central Hospital, Yangtze University, No. 1 Renmin Road, Jingzhou District, Jingzhou, 434000, Hubei, China.

Background: Sepsis is a complicated disease with systemic inflammation or organ dysfunction, and it is the leading cause of acute lung injury (ALI). Long non-coding RNAs (lncRNAs) have played important roles in the pathogenesis of sepsis. This study was designed to explore the biological function and regulatory mechanism of cyclin-dependent kinase inhibitor 2B antisense RNA 1 (CDKN2B-AS1) in lipopolysaccharide (LPS)-induced lung injury. Read More

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PP04 improves high-fat diet-induced liver injury by the modulation of gut inflammation and intestinal microbiota in C57BL/6N mice.

Food Funct 2021 Jun 14. Epub 2021 Jun 14.

College of Food Science and Engineering, Jilin Agricultural University, Changchun, China. and National Engineering Laboratory for Wheat and Corn Deep Processing, Changchun, China.

In this study, Pediococcus pentococcus PP04 (PP04) isolated from the Northeast pickled cabbage was given to C57BL/6N mice for eight weeks, aiming to investigate the ameliorative effects of PP04 on liver injury induced by a high-fat diet. The western blot results suggested that PP04 ameliorated the increase of intestinal permeability by dramatically increasing the expressions of tight junction proteins, such as Occludin, Claudin-1 and ZO-1, which decreased hepatic lipopolysaccharides (LPS), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) concentrations to effectively alleviate the liver injury. Furthermore, PP04 relieved the high-fat diet-caused gut inflammation by the NF-κB/Nrf2 signaling pathway, which regulated the expression of inflammatory cytokines and antioxidants, to positively improve the liver injury. Read More

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An ornithine-rich dodecapeptide with improved proteolytic stability selectively kills gram-negative food-borne pathogens and its action mode on Escherichia coli O157:H7.

Int J Food Microbiol 2021 Jun 8;352:109281. Epub 2021 Jun 8.

State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.

Food-borne pathogenic bacteria are dispersed throughout the entire chain of the food industry. However, many food preservatives are limited by poor biocompatibility such as cumulative poisoning. The antimicrobial peptide is increasingly regarded as a promising preservative in food research due to its high bioactivity and low cytotoxicity. Read More

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Impaired luminal control of intestinal macrophage maturation in patients with ulcerative colitis during remission.

Cell Mol Gastroenterol Hepatol 2021 Jun 11. Epub 2021 Jun 11.

Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,. Electronic address:

Background & Aims: Intestinal macrophages adopt a hyporesponsive phenotype through education by local signals. Lack of proper macrophage maturation in patients with ulcerative colitis (UC) in remission may initiate gut inflammation. The aim was therefore to determine the effects of fecal luminal factors derived from healthy donors and UC patients in remission on macrophage phenotype and function. Read More

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Atractylenolide III reduces depressive- and anxiogenic-like behaviors in rat depression models.

Neurosci Lett 2021 Jun 11:136050. Epub 2021 Jun 11.

Key Laboratory of Molecular Epidemiology of Hunan Province, School of Medicine, Hunan Normal University, Changsha, 410081, China. Electronic address:

Atractylenolide III, a major component of the atractylodes macrocephala Koidz, derived from the rhizoma atractylodes, has been reported to produce various pharmacological effects including anti-aging, anti-inflammation, anti-tumor, and other effects. Growing evidence suggests that proinflammatory cytokines, such as interleukin (IL)-1, IL-6 and tumor necrosis factor (TNF)-α, are increased in depressed patients. The present study was aimed at investigating the antidepressant- and anxiolytic-like effects of atractylenolide III in lipopolysaccharide (LPS) challenge and chronic unpredictable mild stress (CUMS) rat model. Read More

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GmhB enzyme involved in ADP-heptose biosynthesis pathway is essential for lipopolysaccharide biosynthesis and bacterial virulence.

Virulence 2021 Dec;12(1):1610-1628

Institute of Molecular Medicine, College of Life Science, National Tsing Hua University, Hsinchu, Taiwan.

infection is linked to serious gastric-related diseases including gastric cancer. However, current therapies for treating infection are challenged by the increased antibiotic resistance of . Therefore, it is in an urgent need to identify novel targets for drug development against infection. Read More

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December 2021

HDAC5 promotes intestinal sepsis via the Ghrelin/E2F1/NF-κB axis.

FASEB J 2021 Jul;35(7):e21368

Department of Respiratory, the First Hospital of Lanzhou University (the First School of Clinical Medicine), Lanzhou, P.R. China.

In the current study, we sought to determine the roles of histone deacetylase 5 (HDAC5) on the promotion of intestinal sepsis in a mouse model. Dual luciferase reporter gene assay was used to determine the binding relationship between HDAC5 and Ghrelin. Cecal ligation and puncture (CLP) was used as an animal model of intestinal sepsis. Read More

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Punicalagin ameliorates collagen-induced arthritis by downregulating M1 macrophage and pyroptosis via NF-κB signaling pathway.

Sci China Life Sci 2021 Jun 10. Epub 2021 Jun 10.

Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China.

Rheumatoid arthritis (RA) is a chronic inflammatory disease that eventually leads to disability. Inflammatory cell infiltration, severe joint breaking and systemic bone loss are the main clinical symptoms. In this study, we established a collagen-induced arthritis (CIA) model and found a large number of M1 macrophages and pyroptosis, which are important sources of proinflammatory cytokines. Read More

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Histidine ameliorates elastase- and lipopolysaccharide-induced lung inflammation by inhibiting the activation of the NLRP3 inflammasome.

Acta Biochim Biophys Sin (Shanghai) 2021 Jun 14. Epub 2021 Jun 14.

Department of Respiratory Medicine, Peking University Third Hospital, Beijing 100191, China.

Histidine treatment has anti-inflammatory effects on several diseases such as colitis and obesity. We revealed that histidine levels were decreased in the serum of patients with chronic obstructive pulmonary disease (COPD) in our previous study. However, whether histidine confers protection against COPD is unclear. Read More

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Cultivating a Three-dimensional Reconstructed Human Epidermis at a Large Scale.

J Vis Exp 2021 May 28(171). Epub 2021 May 28.

Dow Silicones Belgium SRL;

A three-dimensional human epidermis model reconstructed from neonatal primary keratinocytes is presented. Herein, a protocol for the cultivation process and the characterization of the model is described. Neonatal primary keratinocytes are grown submerged on permeable polycarbonate inserts and lifted to the air-liquid interface three days after seeding. Read More

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lncRNA myocardial infarction-associated transcript (MIAT) knockdown alleviates LPS-induced chondrocytes inflammatory injury via regulating miR-488-3p/sex determining region Y-related HMG-box 11 (SOX11) axis.

Open Life Sci 2021 31;16(1):511-522. Epub 2021 May 31.

Department of Orthopaedic, Taizhou Municipal Hospital, No. 381, Zhongshan East Road, Jiaojiang District, Taizhou 318000, Zhejiang, China.

Long noncoding RNA (lncRNA) has been shown to be involved in the development of osteoarthritis (OA), an age-related bone and joint disease. However, the function and possible molecular mechanism of lncRNA myocardial infarction-associated transcript (MIAT) in lipopolysaccharide (LPS)-induced chondrocytes injury model remain unexplored. Cell viability and apoptosis were detected by methyl thiazolyl tetrazolium (MTT) and flow cytometry, respectively. Read More

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Anti-inflammatory Effects of Empagliflozin and Gemigliptin on LPS-Stimulated Macrophage via the IKK/NF-B, MKK7/JNK, and JAK2/STAT1 Signalling Pathways.

J Immunol Res 2021 2;2021:9944880. Epub 2021 Jun 2.

Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Republic of Korea.

Background: Sodium-glucose cotransporter 2 (SGLT2) and dipeptidyl peptidase-4 (DPP-4) inhibitors are glucose-lowering drugs whose anti-inflammatory properties have recently become useful in tackling metabolic syndromes in chronic inflammatory diseases, including diabetes and obesity. We investigated whether empagliflozin (SGLT2 inhibitor) and gemigliptin (DPP-4 inhibitor) improve inflammatory responses in macrophages, identified signalling pathways responsible for these effects, and studied whether the effects can be augmented with dual empagliflozin and gemigliptin therapy.

Methods: RAW 264. Read More

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Phenolic Compounds of Red Wine Modulate the Functional Activity of Macrophages via Inhibition of and the Citrate Pathway.

Oxid Med Cell Longev 2021 25;2021:5533793. Epub 2021 May 25.

Department of Science, University of Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy.

Phenolic compounds of red wine powder (RWP) extracted from the Italian red wine have been investigated for the potential immunomodulatory and anti-inflammatory capacity on human macrophages. These compounds reduce the secretion of IL-1, IL-6, and TNF- proinflammatory cytokines and increase the release of IL-10 anti-inflammatory cytokine induced by lipopolysaccharide (LPS). In addition, RWP restores Annexin A1 levels, thus involving activation of proresolutive pathways. Read More

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MicroRNA-145-Mediated KDM6A Downregulation Enhances Neural Repair after Spinal Cord Injury the NOTCH2/Abcb1a Axis.

Oxid Med Cell Longev 2021 25;2021:2580619. Epub 2021 May 25.

Department of Spine Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China.

Spinal cord injury (SCI) causes a significant physical, emotional, social, and economic burden to millions of people. MicroRNAs are known players in the regulatory circuitry of the neural repair in SCI. However, most microRNAs remain uncharacterized. Read More

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Exploring the Pathogenesis of Psoriasis Complicated With Atherosclerosis Microarray Data Analysis.

Front Immunol 2021 27;12:667690. Epub 2021 May 27.

Department of Dermatology, The Second Affiliated Hospital of Soochow University, Suzhou, China.

Background: Although more and more evidence has supported psoriasis is prone to atherosclerosis, the common mechanism of its occurrence is still not fully elucidated. The purpose of this study is to further explore the molecular mechanism of the occurrence of this complication.

Methods: The gene expression profiles of psoriasis (GSE30999) and atherosclerosis (GSE28829) were downloaded from the Gene Expression Omnibus (GEO) database. Read More

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Effect of lactoferrin on murine sperm apoptosis induced by intraperitoneal injection of lipopolysaccharide.

J Vet Med Sci 2021 Jun 11. Epub 2021 Jun 11.

Department of Laboratory Animal Science, Faculty of Agriculture, Tottori University.

Genital bacterial infection is one of the most important causes of infertility, however, bacteria frequently exist in seminal fluid. Sperm express Toll-like receptors (TLRs) on their cell surfaces and bacterial recognition by TLRs induces sperm apoptosis. In this study, we examined the lactoferrin (LF) potentiality on sperm apoptosis induced by bacterial lipopolysaccharide (LPS). Read More

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The Combined Effects of Lysophospholipids against Lipopolysaccharide-induced Inflammation and Oxidative Stress in Microglial Cells.

J Oleo Sci 2021 Jun 11. Epub 2021 Jun 11.

Division of Clinical Pharmacology and Pharmaceutics, Nihon Pharmaceutical University.

Lysophospholipids (LPLs) are small bioactive lipid molecules characterized by a single carbon chain and a polar head group. LPLs have recently shown to be involved in many physiological and pathological processes such as nervous system regulation. In our previous studies, a porcine liver decomposition product (PLDP) has been identified as a substance that improves cognitive function at old ages. Read More

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Early Predictors of Gestational Diabetes Mellitus in IVF-Conceived Pregnancies.

Endocr Pract 2021 Jun 17;27(6):579-585. Epub 2020 Dec 17.

Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Clinical Sciences Research Laboratories, University Hospitals Coventry and Warwickshire, Clifford Bridge Road, Coventry, CV2 2DX, United Kingdom.

Objective: Gestational diabetes mellitus (GDM) is associated with adverse maternal and fetal outcomes. This study aimed to identify early and reliable GDM predictors that would enable implementation of preventive and management measures.

Methods: The participants were a 28-week prospective cohort of in vitro fertilization (IVF)-conceived pregnant women (≤39 years, body mass index [BMI] 18. Read More

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Whole exome sequencing reveals a novel LRBA mutation and clonal hematopoiesis in a common variable immunodeficiency patient presented with hemophagocytic lymphohistiocytosis.

Exp Hematol Oncol 2021 Jun 13;10(1):38. Epub 2021 Jun 13.

Myelodysplastic Syndromes Diagnosis and Therapy Center, Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79# Qingchun Road, Hangzhou, 310003, Zhejiang, China.

Common variable immunodeficiency (CVID) was a kind of primary immunodeficiency disorders with heterogeneous phenotype and genotype. Lipopolysaccharide-responsive and beige-like anchor (LRBA) mutation was identified as disease associated in CVID, advanced genetic method will help to detect atypical cases. We report a case of adult patient manifested as hemophagocytic lymphohistiocytosis (HLH), bone marrow examination suggested prosperity to MDS, manifested as increased immature myeloid cells and dysplastic hematopoiesis. Read More

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MiR-144-induced KLF2 inhibition and NF-kappaB/CXCR1 activation promote neutrophil extracellular trap-induced transfusion-related acute lung injury.

J Cell Mol Med 2021 Jun 13. Epub 2021 Jun 13.

Departments of Blood Transfusion, The First Affiliated Hospital of Nanchang University, Nanchang, China.

Transfusion-related acute lung injury (TRALI) is a clinical syndrome which is associated with the formation of neutrophil extracellular trap (NET). Recent studies have demonstrated the roles of microRNAs (miRNAs) in the pathophysiological process of TRALI. Here, the study focused on the role of miR-144 and the molecular mechanisms in NET-induced TRALI. Read More

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Synthesis and evaluation of the anti-inflammatory activity of novel 8-quinolinesulfonamide derivatives as TLR4/MD-2 inhibitors with efficacy in adjuvant-induced arthritis.

Bioorg Chem 2021 May 31;114:105037. Epub 2021 May 31.

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China. Electronic address:

In this study, a series of 8-quinolinesulfonamidederivatives was synthesized, and their anti-inflammatory activity was evaluated. Among them, compound 3l was found to be the best anti-inflammatory agent, with IC values of 2.61 ± 0. Read More

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Ficus deltoidea: Potential Inhibitor of Pro-Inflammatory Mediators in Lipopolysaccharide-Induced Activation of Microglial Cells.

J Ethnopharmacol 2021 Jun 10:114309. Epub 2021 Jun 10.

Department of Human Anatomy, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Electronic address:

Ethnopharmacological Relevance: Ficus deltoidea Jack (FD) is widely consumed in traditional medicine as a treatment for various diseases in Malaysia. Each part of the plant such as its leave, stem, fruit and root are used traditionally to treat different types of diseases. Vitexin and isovitexin are bioactive compounds abundantly found in the leaves of FD that possessed many pharmacological properties including neuroprotection. Read More

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