scholarly journals Association of Pro-inflammatory Cytokine Gene Polymorphism with Meniere’s Disease in an Iranian Sample

2021 ◽  
Author(s):  
Ali Kouhi ◽  
Sahar Shakeri ◽  
Nasrin Yazdani ◽  
Niloufar Shababi ◽  
Anita Mohseni ◽  
...  
Keyword(s):  
Gene Polymorphism ◽  
Inflammatory Cytokines ◽  
Inflammatory Cytokine ◽  
Meniere’S Disease ◽  
Ménière’S Disease ◽  
Healthy Controls ◽  
Cytokine Genes ◽  
Tnf Α ◽  
Ménière's Disease ◽  
Pro Inflammatory Cytokines

Meniere’s disease (MD) is known as a rare chronic disorder of the inner ear with elevated serum levels of pro-inflammatory cytokines like tumor necrosis factor (TNF)-α, Interleukin (IL)-1, and IL-6. This study aims to evaluate genes polymorphism in some pro-inflammatory cytokines in a group of Iranian MD patients compared to the healthy controls. In this case-control study, 25 MD patients and 139 healthy controls were enrolled. DNA was extracted from blood samples, and single nucleotide polymorphisms were detected using polymerase chain reaction with sequence-specific primers assay. MD patients and controls were examined in terms of allele, genotype, and haplotype frequency of pro-inflammatory cytokine genes. Only the frequencies of alleles A/G at position -238 in the promoter of the TNF-α gene differed significantly between MD patients and healthy controls. G to A allele ratio was 23 and 3.6 in MD and controls, respectively. In individuals with MD, genotype GG was found to be significantly more prevalent at position -238 of the TNF-α gene promoter sequence. In addition, the heterozygote AG variant of -238 A/G TNF-α gene polymorphism was lower in MD patients than controls. Compared to the control group, the haplotype TNF- (-308, -238) AG was higher in MD patients, although not statistically significant. This is the first study that we know of that evaluates the frequencies of pro-inflammatory cytokine genes in an Iranian MD sample. This study shows the association between TNF-α and susceptibility to MD.

Inhibition of Pro-Inflammatory Cytokine Secretion by Select Antioxidants in Human Coronary Artery Endothelial Cells

2020 ◽  
Vol 90 (1-2) ◽  
pp. 103-112 ◽  
Author(s):  
Michael J. Haas ◽  
Marilu Jurado-Flores ◽  
Ramadan Hammoud ◽  
Victoria Feng ◽  
Krista Gonzales ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Ascorbic Acid ◽  
Coronary Artery ◽  
Inflammatory Cytokines ◽  
Inflammatory Cytokine ◽  
Culture Media ◽  
Cytokine Secretion ◽  
Human Coronary Artery ◽  
Tnf Α ◽  
Pro Inflammatory Cytokines

Abstract. Inflammatory and oxidative stress in endothelial cells are implicated in the pathogenesis of premature atherosclerosis in diabetes. To determine whether high-dextrose concentrations induce the expression of pro-inflammatory cytokines, human coronary artery endothelial cells (HCAEC) were exposed to either 5.5 or 27.5 mM dextrose for 24-hours and interleukin-1β (IL-1β), interleukin-2 (IL-2), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor α (TNF α) levels were measured by enzyme immunoassays. To determine the effect of antioxidants on inflammatory cytokine secretion, cells were also treated with α-tocopherol, ascorbic acid, and the glutathione peroxidase mimetic ebselen. Only the concentration of IL-1β in culture media from cells exposed to 27.5 mM dextrose increased relative to cells maintained in 5.5 mM dextrose. Treatment with α-tocopherol (10, 100, and 1,000 μM) and ascorbic acid (15, 150, and 1,500 μM) at the same time that the dextrose was added reduced IL-1β, IL-6, and IL-8 levels in culture media from cells maintained at 5.5 mM dextrose but had no effect on IL-1β, IL-6, and IL-8 levels in cells exposed to 27.5 mM dextrose. However, ebselen treatment reduced IL-1β, IL-6, and IL-8 levels in cells maintained in either 5.5 or 27.5 mM dextrose. IL-2 and TNF α concentrations in culture media were below the limit of detection under all experimental conditions studied suggesting that these cells may not synthesize detectable quantities of these cytokines. These results suggest that dextrose at certain concentrations may increase IL-1β levels and that antioxidants have differential effects on suppressing the secretion of pro-inflammatory cytokines in HCAEC.

Endolymphatic space size in patients with Meniere’s disease and healthy controls

2016 ◽  
Vol 136 (9) ◽  
pp. 879-882 ◽  
Author(s):  
Taeko Ito ◽  
Tadashi Kitahara ◽  
Hiroshi Inui ◽  
Toshiteru Miyasaka ◽  
Kimihiko Kichikawa ◽  
...  
Keyword(s):  
Meniere’S Disease ◽  
Menière’S Disease ◽  
Meniere's Disease ◽  
Ménière’S Disease ◽  
Healthy Controls ◽  
Menière's Disease ◽  
Space Size ◽  
Ménière's Disease ◽  
Endolymphatic Space

scholarly journals P0527AROLE OF PROMOTING INFLAMMATION OF KLF6 IN ACUTE KIDNEY INURY

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Dan Li ◽  
Chenyu Li ◽  
Yan Xu
Keyword(s):  
Inflammatory Cytokines ◽  
Inflammatory Cytokine ◽  
Ischemia Reperfusion ◽  
Kidney Injury ◽  
Tnf Α ◽  
Public Dataset ◽  
Anti Inflammatory ◽  
Anti Inflammatory Cytokine ◽  
Pro Inflammatory Cytokines

Abstract Background and Aims Acute kidney injury (AKI), commonly appeared in cardiac arrest, surgery and kidney transplantation which involved in ischemia-reperfusion (IR) injury of kidney. However, the mechanisms underlying inflammatory response in IR AKI is still unclear. Method Public dataset showed kruppel-like factor 6 (KLF6) was significantly highly expressed (P<0.05) in AKI, implies KLF6 might be associated with AKI. To evaluate the mechanism of KLF6 on IR AKI, 30 rats were randomly divided into sham and IR group, and were sacrificed at 0 h, 3 h, 6 h, 12 h or 24 h after IR. Results The results showed KLF6 expression was peaking at 6 h after IR, and the expression of pro-inflammatory cytokines MCP-1 and TNF-α were increased both in serum and kidney tissues after IR, while anti-inflammatory cytokine IL-10 was decreased after IR. Furthermore, in vitro results showed KLF6 knock-down reduced the pro-inflammatory cytokines expression and increased the anti-inflammatory cytokines expression. Conclusion These results suggest that (1) KLF6 might be a novel biomarker for early diagnosis of AKI and (2) targeting KLF6 expression may offer novel strategies to protect kidneys from IR AKI Figure KLF6, AKI, Control Inflammation

scholarly journals Increased urinary volumes in symptomatic Ménière’s Disease

2019 ◽  
Author(s):  
Federica Di Berardino ◽  
Diego Zanetti
Keyword(s):  
Healthy Volunteers ◽  
Meniere’S Disease ◽  
Menière’S Disease ◽  
Meniere's Disease ◽  
Ménière’S Disease ◽  
Healthy Controls ◽  
Urinary Volume ◽  
Menière's Disease ◽  
Ménière's Disease

Abstract Objective. The purpose of the research is to test the measurement of the total urinary volume, induced by the diuretic osmotic action of mannitol, in a group of symptomatic MD patients and in healthy controls. Results. An altered excretory urinary volume after mannitol challenge was observed in symptomatic MD (874.3 ± 302.1) compared to healthy volunteers (361.7 ± 181.6). (p = 0.0001) This easy and self-administered method might be proposed to replace the analysis of the urinary sugars’ concentration in symptomatic MD patients.

scholarly journals The Effects of New Zealand Grown Ginseng Fractions on Cytokine Production from Human Monocytic THP-1 Cells

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1158
Author(s):  
Wei Chen ◽  
Prabhu Balan ◽  
David G. Popovich
Keyword(s):  
New Zealand ◽  
Inflammatory Cytokines ◽  
Transforming Growth Factor Beta ◽  
Inflammatory Cytokine ◽  
Transforming Growth Factor ◽  
Enzyme Linked Immunosorbent Assay ◽  
High Dose ◽  
Tnf Α ◽  
Anti Inflammatory ◽  
Pro Inflammatory Cytokines

Pro-inflammatory cytokines and anti-inflammatory cytokines are important mediators that regulate the inflammatory response in inflammation-related diseases. The aim of this study is to evaluate different New Zealand (NZ)-grown ginseng fractions on the productions of pro-inflammatory and anti-inflammatory cytokines in human monocytic THP-1 cells. Four NZ-grown ginseng fractions, including total ginseng extract (TGE), non-ginsenoside fraction extract (NGE), high-polar ginsenoside fraction extract (HPG), and less-polar ginsenoside fraction extract (LPG), were prepared and the ginsenoside compositions of extracts were analyzed by HPLC using 19 ginsenoside reference standards. The THP-1 cells were pre-treated with different concentrations of TGE, NGE, HPG, and LPG, and were then stimulated with lipopolysaccharide (LPS). The levels of pro-inflammatory cytokines, including tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), interleukin-6 (IL-6), interleukin-8 (IL-8), and anti-inflammatory cytokines, such as interleukin-10 (IL-10), and transforming growth factor beta-1 (TGF-β1), were determined by enzyme-linked immunosorbent assay (ELISA). TGE at 400 µg/mL significantly inhibited LPS-induced TNF-α and IL-6 productions. NGE did not show any effects on inflammatory secretion except inhibited IL-6 production at a high dose. Furthermore, LPG displayed a stronger effect than HPG on inhibiting pro-inflammatory cytokine (TNF-α, IL-1β, and IL-6) productions. Particularly, 100 µg/mL LPG not only significantly inhibited the production of pro-inflammatory cytokines TNF-α, IL-1β, and IL-6, but also remarkably enhanced the production of anti-inflammatory cytokine IL-10. NZ-grown ginseng exhibited anti-inflammatory effects in vitro, which is mainly attributed to ginsenoside fractions (particularly less-polar ginsenosides) rather than non-saponin fractions.

Abstract 088: Chronic Efferent Vagal Stimulation Enhances Norepinephrine-mediated Inhibition of Splenic Pro-inflammatory Cytokine Release in Lupus Hypertension

Hypertension ◽  
2016 ◽  
Vol 68 (suppl_1) ◽  
Author(s):  
Grace S Pham ◽  
Amber S Fairley ◽  
Keisa W Mathis
Keyword(s):  
Inflammatory Cytokines ◽  
Lupus Erythematosus ◽  
Inflammatory Cytokine ◽  
Vagal Stimulation ◽  
Reproductive Age ◽  
Cytokine Release ◽  
Tnf Α ◽  
Anti Inflammatory ◽  
Stimulation Of ◽  
Pro Inflammatory Cytokines

Hypertension is prevalent in the autoimmune disease systemic lupus erythematosus (SLE), occurring with alarming frequency in reproductive-age women. Recent studies implicate the adaptive immune system in the development and maintenance of hypertension, and neuroimmune pathways may regulate this source of inflammation. One example is the cholinergic anti-inflammatory pathway (CAP), an endogenous nerve-to-spleen mechanism that regulates splenic pro-inflammatory cytokine release. We hypothesized that this pathway is impaired in SLE and that chronic stimulation of the CAP at the level of the efferent vagus nerve would attenuate hypertension in SLE. Starting at 30 and 32 weeks of age, female NZBWF1 SLE mice and NZW control mice were treated with the pharmacologic efferent vagal stimulators CNI-1493 (CNI; 8mg/kg; twice weekly; i.p.) or galantamine (GAL; 4mg/kg; daily; i.p.), or saline. At 34 weeks of age, we measured mean arterial pressure (MAP), finding that MAP (mmHg) in SLE mice was elevated compared to controls (139.83 ± 4.56 vs. 120.70 ± 2.96; n=4-6/group, p = 0.002), while the rise in MAP was prevented by CNI (134.45 ± 3.07)and GAL (129.25 ± 3.97) in SLE mice. We further hypothesized that splenocytes isolated from SLE mice conditioned by efferent vagal stimulation would release fewer pro-inflammatory cytokines in the presence of norepinephrine, which stimulates splenic β2 adrenergic receptors. We incubated isolated splenocytes for 24 hours at 37°C with and without norepinephrine (100 μM), then measured pro-inflammatory cytokines in the supernatant via ELISA. Compared to control mice, splenocytes from SLE mice secreted 70.7% and 146.5% higher concentrations of IL-6 and TNF-α (8.24 vs. 4.83 and 2.79 vs. 1.13 pg/mL, respectively; n=2/group) in the presence of norepinephrine. Compared to saline-treated SLE mice, splenocytes from CNI and GAL-treated SLE mice released fewer cytokines when incubated with norepinephrine (8.24 vs. 5.31 and 5.79 pg/mL IL-6; 2.79 vs. 2.18 and 0.81 pg/mL TNF-α; n=2/group). These in vivo and in vitro data suggest that stimulation of the CAP at the level of the efferent vagus may promote anti-inflammatory splenocyte activity, which may be protective against hypertension in the setting of chronic inflammation.

scholarly journals Lanthanum Chloride Inhibits LPS Mediated Expressions of Pro-Inflammatory Cytokines and Adhesion Molecules in HUVECs: Involvement of NF-κB-Jmjd3 Signaling

2017 ◽  
Vol 42 (5) ◽  
pp. 1713-1724 ◽  
Author(s):  
Xia Chen ◽  
Min Xiu ◽  
Juanjuan Xing ◽  
Shaoqing Yu ◽  
Dinghong Min ◽  
...  
Keyword(s):  
Dna Binding ◽  
Inflammatory Cytokines ◽  
Adhesion Molecule ◽  
Inflammatory Cytokine ◽  
Nuclear Translocation ◽  
Binding Activity ◽  
Promoter Regions ◽  
Dna Binding Activity ◽  
Tnf Α ◽  
Pro Inflammatory Cytokines

Background/Aims: To investigate the regulation of LaCl3 on lipopolysaccharides (LPS)-induced pro-inflammatory cytokines and adhesion molecules in human umbilical vein endothelial cells (HUVECs). Methods: Primary cultured HUVECs were pretreated with 2.5 µM LaCl3 for 30 min followed by 1 µg/ml LPS for 2 h. Pro-inflammatory cytokine and adhesion molecule expressions were determined by real-time RT-PCR and ELISA. NF-κB/p65 nuclear translocation was examined by immunofluorescence and immuno-blot, and its DNA-binding activity was measured by chemiluminescence. Recruitment of NF-κB/p65, Jmjd3, and H3K27me3 to gene promoter regions was determined by ChIP-qPCR. Results: LaCl3 exhibited no cytotoxic effects to primary HUVECs at concentrations ≤ 50 µM. LPS-mediated TNF-α, IL-1β, IL-6, MMP-9, and ICAM-1 production, nuclear translocation, and DNA-binding activity of NF-κB/p65, as well as Jmjd3 expression, were all reduced significantly by LaCl3. Furthermore, LaCl3 treatment significantly impaired LPS-induced enrichment of NF-κB/p65 to the promoter regions of TNF-α, MMP-9, IL-1β, ICAM-1, and IL-6; and of Jmjd3 to the promoter regions of TNF-α, MMP-9, IL-1β, and IL-6. H3K27me3 abundance in the promoter regions of TNF-α and ICAM-1 increased significantly in following LaCl3 treatment. Conclusion: LaCl3 inhibits pro-inflammatory cytokine and adhesion molecule expressions induced by LPS in HUVECs. NF-κB and histone demethylase Jmjd3 are involved in this effect.

scholarly journals Increased urinary volumes in symptomatic Ménière’s Disease

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Federica Di Berardino ◽  
Diego Zanetti
Keyword(s):  
Healthy Volunteers ◽  
Meniere’S Disease ◽  
Menière’S Disease ◽  
Meniere's Disease ◽  
Ménière’S Disease ◽  
Healthy Controls ◽  
Urinary Volume ◽  
Menière's Disease ◽  
Ménière's Disease

Abstract Objective The purpose of the research is to test the measurement of the total urinary volume, induced by the diuretic osmotic action of mannitol, in a group of symptomatic MD patients and in healthy controls. Results An altered excretory urinary volume after mannitol challenge was observed in symptomatic MD (874.3 ± 302.1) compared to healthy volunteers (361.7 ± 181.6) (p = 0.0001). This easy and self-administered method might be proposed to replace the analysis of the urinary sugars’ concentration in symptomatic MD patients.

Diagnostic Value of Frequency-Associated Vestibular-Evoked Myogenic Potential Responses in Ménière's Disease

2015 ◽  
Vol 20 (4) ◽  
pp. 229-236 ◽  
Author(s):  
Mehti Salviz ◽  
Turgut Yuce ◽  
Abdullah Karatas ◽  
Hasan Huseyin Balikci ◽  
Murat Haluk Ozkul
Keyword(s):  
Diagnostic Value ◽  
Meniere’S Disease ◽  
Meniere's Disease ◽  
Ménière’S Disease ◽  
Healthy Controls ◽  
Menière's Disease ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Ménière's Disease ◽  
Better Than

Thirty subjects with unilateral Ménière's disease (MD) and 18 age-matched controls underwent cervical (cVEMP) and ocular vestibular-evoked myogenic potential (oVEMP) testing using bilateral air-conducted stimulation (ACS) with stimulus frequencies of 500 and 1,000 Hz. The aim of this study is to determine the diagnostic value of frequency-associated responses in MD using oVEMP and cVEMP following 500- and 1,000-Hz ACS. In healthy controls and unaffected ears, responses to 500 Hz were found better than 1,000-Hz ACS in both oVEMP and cVEMP, while ears with MD responded to 1,000-Hz ACS better than to 500-Hz ACS in oVEMP. In cVEMP tests, affected ears responded to 500-Hz and 1,000-Hz ACS equally. Amplitude ratios of 1,000/500 Hz in both oVEMP and cVEMP were successful in differing affected ears from unaffected ears and healthy controls. This study showed frequency alteration of oVEMP and cVEMP can be used as a diagnostic test battery in MD.

scholarly journals Electroacupuncture Improves M2 Microglia Polarization and Glia Anti-inflammation of Hippocampus in Alzheimer’s Disease

2021 ◽  
Vol 15 ◽  
Author(s):  
Lushuang Xie ◽  
Yi Liu ◽  
Ning Zhang ◽  
Chenyu Li ◽  
Aaron F. Sandhu ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Inflammatory Response ◽  
Inflammatory Cytokines ◽  
Inflammatory Cytokine ◽  
Cytokine Expression ◽  
Tnf Α ◽  
Microglia Polarization ◽  
Anti Inflammatory ◽  
Pro Inflammatory Cytokines

Background: Alzheimer’s disease (AD) is a neurodegenerative disease characterized by loss of recognition and memory. Neuroinflammation plays pivotal roles in the pathology of AD and affects the progression of the disease. Astrocyte and microglia, as main immune executors in the central nervous system (CNS), participate into the inflammatory response in AD. Glia polarize into different phenotypes during neurodegeneration. Pro-inflammatory glia produce cytokines (IL-1β, TNF-α, and IL-6) resulting into debris aggregates and neurotoxicity. Anti-inflammatory phenotypes produce cytokines (IL-4 and IL-10) to release the inflammation. Electroacupuncture is a useful treatment that has been found to slow the neurodegeneration in animals through experimentation and in humans through clinical trials. The aim of this study was to uncover the mechanisms of glia activation, microglia polarization, and cytokine secretion regulated by electroacupuncture as a treatment for AD.Methods: Twenty male Sprague–Dawley (SD) rats were randomly divided into four groups: Control group (Control), Normal saline group (NS), AD group (AD), and Electroacupuncture group (Acupuncture). The AD and Acupuncture groups were bilaterally injected with Aβ1–42 into the CA1 field of the hippocampus. The Acupuncture group received electroacupuncture stimulation on the acupoint “Baihui” (GV20) for 6 days per week for a total of 3 weeks. The Morris Water Maze (MWM) was used to evaluate learning and memory capacity. Immunofluorescence was used to stain GFAP and Iba1 of the DG and CA1 in the hippocampus, which, respectively, expressed the activation of astrocyte and microglia. The M1 microglia marker, inducible nitric oxide synthase (iNOS), and M2 marker Arginase 1 (Arg1) were used to analyze the polarization of microglia. The pro-inflammatory cytokines (IL-1β, TNF-α, and IL-6), anti-inflammatory cytokines (IL-4 and IL-10), and pathway-molecules (p65 and Stat6) were tested to analyze the glia inflammatory response by immunofluorescence and polymerase chain reaction (PCR).Results: The MWM results showed that electroacupuncture improves the escape latency time and the swimming distance of AD rats. The number of GFAP and Iba1 cells significantly increased in AD rats, but electroacupuncture decreased the cells. The iNOS-positive cells were significantly increased in AD, and electroacupuncture decreased the positive cells. Electroacupuncture elevated Arg1-positive cells in AD rats. Electroacupuncture decreased the glia pro-inflammatory cytokine expression and increased the anti-inflammatory cytokine expression in AD rats. Furthermore, electroacupuncture inhibited the NF-κB pathway molecule (p65) while raising the Stat6 pathway molecule (Stat6).Conclusion: These results provide evidence that electroacupuncture improves the recognition abilities and memory of AD rats. Electroacupuncture inhibits the activation of glia and polarizes microglia toward the M2 phenotype. Electroacupuncture decreased the pro-inflammatory cytokines (IL-1β, TNF-α, and IL-6) and increased the anti-inflammatory cytokines (IL-4 and IL-10). Furthermore, electroacupuncture affects the immune responses through inhibition of NF-κB pathway but activation of Stat6 pathway.

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