• Title/Summary/Keyword: Interleukin 6

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Functional Haplotype Frequencies of the Interleukin-1B Promoter in the Korean Population

  • Lee, Kyung-A
    • Genomics & Informatics
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    • v.6 no.1
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    • pp.29-31
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    • 2008
  • Single nucleotide polymorphisms (SNPs) in the promoter region of the IL-1B (interleukin-1) gene have been implicated in a variety of diseases that have an inflammatory component. However, there has been significant heterogeneity among study results, especially between Caucasian and Asian populations. Recently, it has been reported that SNPs in the IL-1B gene affect transcription, according to haplotype context, and genetic association studies may be more informative if functional SNP haplotypes of population are analyzed. Therefore, we estimated the distribution of IL-1B promoter haplotypes in 433 Koreans using the three major functional IL-1B promoter SNPs (IL-1B -1464, -511, and -31) and compared the results with those in Caucasians. The difference in IL-1B promoter haplotype frequency between Korean and Caucasian populations was statistically significant. The potentially more inflammatory haplotypes had higher frequencies in Koreans when compared with Caucasians. These Korean haplotype data will be useful for future association studies between IL-1B SNPs and disease risk.

Elevated interleukin-10 levels in patients with ocular toxoplasmosis

  • Gee-Hyun Kim;Jae Hyuck Kwak;Young-Hoon Park
    • Parasites, Hosts and Diseases
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    • v.61 no.3
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    • pp.310-316
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    • 2023
  • In elderly patients, ocular toxoplasmosis is one of the most common etiologies of uveitis, which should be differentially diagnosed from ocular lymphoma, another common pathology of uveitis in older adults. The high level of interleukin (IL)-10 and an IL-10/IL-6 ratio higher than 1 (>1.0) are helpful parameters to diagnose ocular lymphoma. In this study, we used aqueous humor samples to detect 4 cases of ocular toxoplasmosis in patients with high levels of IL-10 and an IL-10/IL-6 ratio higher than 1. Our results show that ocular toxoplasmosis may be associated with increased cytokine levels in aqueous humor.

The effect of Oligonol intake on cortisol and related cytokines in healthy young men

  • Lee, Jeong-Beom;Shin, Young-Oh;Min, Young-Ki;Yang, Hun-Mo
    • Nutrition Research and Practice
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    • v.4 no.3
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    • pp.203-207
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    • 2010
  • This study investigated the effects of Oligonol intake on cortisol, interleukin (IL)-$1{\beta}$, and IL-6 concentrations in the serum at rest and after physical exercise loading. Nineteen healthy sedentary male volunteers participated in this study. The physical characteristics of the subjects were: a mean height of $174.2{\pm}2.7$ cm, a mean weight of $74.8{\pm}3.6$ kg and a mean age of $22.8{\pm}1.3$ years. Each subject received 0.5 L water with Oligonol (100 mg/day) (n = 10) or a placebo (n = 9) daily for four weeks. The body composition, the white blood cell (WBC) and differential counts as well as the serum cortisol, IL-$1{\beta}$, and IL-6 concentrations were measured before and after Oligonol intake. The cortisol concentration and serum levels of IL-$1{\beta}$ and IL-6 after Oligonol intake were significantly decreased compared to before treatment (P < 0.01, respectively). In addition, the rate of increase of these factors after exercise was decreased compared to the placebo group. There was no change in the WBC and differential cell counts. These results suggest that oral Oligonol intake for four weeks had a significant effect on inhibition of inflammatory markers in healthy young men.

Studies on Anti-inflammatory Effects of Mahwanghangingamchosukgo-tang Extracts (마황행인감초석고탕 추출물의 항염증 효과에 대한 연구)

  • Park, Jung Eun;Hwang, Hyung Seo;Kim, Tae Yeon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.34 no.6
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    • pp.319-325
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    • 2020
  • Mahwanghangingamchosukgo-tang (MH) is recorded as a treatment to treat exterior-related respiratory diseases in the Korean medicine. In this study, we examined the anti-inflammatory effects of MH, using MH water extract and lipopolysaccharide (LPS)-induced RAW 264.7 cells. First of all, we measured the amount of nitric oxide (NO) and prostaglandin E2 (PGE2), the products of inflammatory metabolism. Also, we measured enzymes such as inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2), as well as cytokines such as interleukin 6 (IL-6), interleukin 1 alpha (IL-1α), and interleukin 1 beta (IL-1β). MH suppressed the production of NO and PGE2 in a dose dependent manner and reduced the amount of protein and the mRNA expression of iNOS and COX-2. Also, MH reduced the mRNA expression of IL-6, IL-1α and IL-1β. In conclusion, MH decreased production of LPS-induced inflammatory factor, which could be a clinical basic subject for inflammatory diseases.

A study of Cytokine in Peritoneal Fluid of Infertile Patients with Endometriosis (자궁내막증이 있는 불임환자에서 복강액내의 Cytokine에 관한 연구)

  • Kang, Jeong-Bae;Park, Je-Yong;Kim, Bum;Kim, Sung-Joo;Sohn, Woo-Seok;Kim, Hyun-Tae;Jang, Pong-Rheem
    • Clinical and Experimental Reproductive Medicine
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    • v.27 no.1
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    • pp.91-97
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    • 2000
  • Objective: The presence of the various cytokines in human peritoneal fluid has been evaluated incompletely. Changes in cytokine levels may be related to activation of peritoneal macrophage and T-lymphocyte, development of endometriosis, and infertility. This study assesses peritoneal fluid levels of interleukin-6 (IL-6), interleukin-8 (IL-8), interleukin-10 (IL-10) and tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) in infertile women with endometriosis and normal women without endometriosis. Design: Prospective and case-control study in university hospital. Materials and Methods: Cytokine levels in peritoneal fluid obtained during laparotomy or laparoscopy from 21 patients in infertile patients with endometriosis and 24 controls undergoing laparotomy or laparoscopy with no evidence of pelvic endometriosis were determined by enzyme-linked immunosorbent assay. Results: The mean levels of interleukin-6 in infertile patients with endometriosis and controls were $72.7{\pm}23.7$ pg/ml and $18.5{\pm}9.7$ pg/ml respectively (p=0.02). Similarly, the mean levels of interleukin-8 in infertile patients with endometriosis was significantly higher than that of controls ($445.0{\pm}89.6$, vs $45.1{\pm}48.4$, p=0.04). The mean concentration of interleukin-10 in infertile patients with endometriosis was significantly lower than that of controls ($1.09{\pm}0.04$ vs $2.19{\pm}0.03$, p=0.03). The level of tumor necrosis factor-${\alpha}$ was not significantly different between the two study groups. Conclusions: Increased IL-6 and IL-8 and decreased IL-10 levels in the peritoneal fluid may be related to pathogenesis in the endometriosis and infertility, suggesting that partially contribute to the disturbed immune regulation observed in infertili women with endometriosis.

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Evaluation of the anti-inflammatory effects of silkworm (Bombyx mori L.) pupal extracts against lipopolysaccharide-induced inflammation in the murine macrophage cell line RAW264.7

  • Kamidi, Rahul;HaeYong, Kweon;Hun-bok, Kim;Ji Hae, Lee
    • International Journal of Industrial Entomology and Biomaterials
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    • v.45 no.2
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    • pp.99-107
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    • 2022
  • Silkworm pupal extracts (SPE) were prepared in different solvents (water, 30%, 50%, 70%, and 100% ethanol) and their anti-inflammatory effects were evaluated in the RAW264.7 cell line. The SPE composition was initially evaluated by determining the protein content and performing Fourier transform infrared (FTIR) analysis. The protein content of the different SPE ranged from 6.75-130.93 mg/g of extract. FTIR analysis exhibited distinguishable absorption peaks among the extracts and indicated the presence of lipids, proteins, carbohydrates, and nucleic acid moieties. The levels of released nitric oxide (NO) and interleukin-6 (IL-6) expression in lipopolysaccharide (LPS)-induced RAW264.7 cells were only attenuated by 100% ethanolic SPE to 19.44% and 16.77%, respectively. The other solvent extracts were ineffective. Hence, further studies were conducted with 100% ethanolic SPE from three distinct stages of male and female silkworm pupae belonging to four silkworm varieties (Baegokjam; B, GoldenSilk; G, Juhwangjam; J, and YeonNokjam; Y). The best reduction in NO release and interleukin-1β (IL-1β) expression levels was achieved by the SPE of early female pupae belonging to the Baegokjam variety (32.72%) and those of early female pupae belonging to the Baegokjam and GoldenSilk (59.93%) varieties, respectively. The best reduction in IL-6 expression by 49.70% was achieved by SPE from female pupae of the mid-pupal stage belonging to the Baegokjam variety.

Sinensetin Inhibits Interleukin-6 in Human Mast Cell - 1 Via Signal Transducers and Activators of the Transcription 3 (STAT3) and Nuclear Factor Kappa B (NF-κB) Pathways

  • Chae, Hee-Sung;Kim, Young-Mi;Chin, Young-Won
    • Natural Product Sciences
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    • v.23 no.1
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    • pp.1-4
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    • 2017
  • Sinensetin, a pentamethoxyflavone, is known to exert various pharmacological activities including anti-angiogenesis, anti-diabetic and anti-inflammatory activities. However, its effects on the human mast cell - 1 (HMC-1) mediated inflammatory mechanism remain unknown. To explore the mediator and cellular inflammatory response of sinensetin, we examined its influence on phorbol 12-myristate 13-acetate (PMA) plus A23187 induced inflammatory mediator production in a human mast cell line. In this study, interleukin (IL)-6 production was measured using the enzyme-linked immunosorbent assay and reverse transcription polymerase chain reaction. Sinensetin inhibited PMA plus A23187 induced IL-6 production in a dose-dependent manner as well as IL-4, IL-5 and IL-8 mRNA expression. Furthermore, sinensetin inhibited signal transducer and activator of transcription 3 (STAT3) phosphorylation, suggesting that sinensetin inhibits the production of inflammatory mediators by blocking STAT3 phosphorylation. Moreover, sinensetin was found to inhibit nuclear factor kappa B activation. These findings suggest that sinensetin may be involved in the regulation of mast cell-mediated inflammatory responses.

Anti-inflammatory Effect of Scutellariae Radix

  • Lee, Eun
    • Korean Journal of Plant Resources
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    • v.20 no.6
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    • pp.548-552
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    • 2007
  • This research is the basic research to develop new anti-inflammatory medicine by feeding Scutellariae Radix extract to lipopolysaccharide(LPS) exposed rats, and analyzed it's effect on inflammatory response by LPS derivation. As a result, Plasma interleukin-$1\beta(IL-1\beta)$ and Plasma interleukin-6(IL-6) concentration showed the highest point at 5h after LPS injection, and in this time, the concentration of $IL-1\beta$ and IL-6 in the Scutellariae Radix extract groups at 200mg/kg and 300mg/kg showed lower values than that of control group. Plasma tumor necrosis $factor-\alpha(TNF-\alpha)$ concentration after LPS injection showed the highest point at 2h and showed similar level till at 5h. $TNF-\alpha$ concentration at 2h after LPS injection showed the low value only in the Scutellariae Radix extract 300mg/kg group compared to others, and in 5h, the all Scutellariae Radix extract groups showed lower value than that of the control group. Plasma interleukin-10(IL-10) concentration increased at 2h after LPS injection and reached the highest at 5h. After LPS injection the IL-10 concentration at 2h, the Scutellariae Radix extract injection group at 300mg/kg showed higher value than that of the others, and in 5h after LPS injection, Scutellariae Radix extract 200mg and 300mg groups showed higher value than the control group. Concluding from the above results, in inflammatory response by LPS derivation, the Scutellariae Radix gives positive effect.

THE CHANGE OF EXPRESSION OF INTERLEUKIN-6 AND -8 AFTER THE APPLICATION OF THE STATIC COMPRESSIVE PRESSURE ON THE FIBROBLAST ORIGINATED FROM THE PERIODONTAL LIGAMENTS (치주인대 기원의 섬유아 세포에 압축력을 가한 경우 Interleukin-6 및 Interleukin-8의 발현 변화에 관한 연구)

  • Lee, Yeon-Hee;Kim, Seong-Gon;Nahm, Dong-Seok
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.32 no.5
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    • pp.426-429
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    • 2006
  • The fibroblast in the periodontal ligaments received various stress. Among them, compression and tension are quite important and they are related to the remodeling of tooth and alveolar bone. We studied the change of expression of interleukin-6 (IL-6) and interleukin-8 (IL-8) in the fibroblasts of the periodontal ligaments by real-time RT-PCR and ELISA. In results, the relative activity of IL-6 mRNA in 2 hours after was 1.54${\pm}$0.08 and 1.00${\pm}$0.05 in control and test, respectively (P<0.05). Its 12 hours after was 1.23${\pm}$0.06 and 2.78${\pm}$0.14 in control and test, respectively (P<0.05). The relative activity of IL-8 mRNA in 2 hours after was 1.00${\pm}$0.05 and 0.24${\pm}$0.01 in control and test, respectively (P<0.05). Its 12 hours after was 1.23${\pm}$0.06 and 0.63${\pm}$0.03 in control and test, respectively (P<0.05). The concentration of IL-6 was 1.02${\pm}$0.16 ng/ml, 0.90${\pm}$0.14 ng/ml, and 1.32${\pm}$0.12 ng/ml (P<0.05) in control, 2, and 12 hours after, respectively. The concentration of IL-8 was 2.26${\pm}$0.17 ng/ml, 1.70${\pm}$0.26 ng/ml (P<0.05), and 0.84${\pm}$0.47 ng/ml (P<0.05) in control, 2, and 12 hours after, respectively. In conclusion, the expression of IL-6 was significantly increased after the application of the static compressive force, but IL-8 was significantly decreased. Considering their known function, their expression is quite important in tooth and bone resorption.

Anti-inflammatory effects of the Rubus occidentalis seed extracts on UV-B induced inflammation in HaCat cells (각질형성세포에서 UV-B와 사이토카인에 의하여 유도되는 염증 반응에 대한 복분자 씨앗 추출물의 항염증 효과)

  • Kim, Dong-Hee;Park, Tae-Soon;Son, Jun-Ho
    • Journal of Applied Biological Chemistry
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    • v.59 no.3
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    • pp.247-253
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    • 2016
  • It confirmed the applicability as an anti-inflammatory material from Rubus occidentalis seed (RSE) extract. In HaCaT cells to evaluate the anti-inflammatory potential as a material RSE extract on the activity of the inflammatory factors caused by UVB and $IFN-{\gamma}/TNF-{\alpha}$. We measured the activity of ROS, interleukin-$1{\beta}$ ($IL-1{\beta}$), interleukin-6 (IL-6) and interleukin-8 (IL-8) by ROS-Glo $H_2O_2$ assay and ELISA kit. Our results showed that the RSE extracts inhibit the UVB and $IFN-{\gamma}/TNF-{\alpha}$-induced ROS activities and expression of $IL-1{\beta}$, IL-6 and IL-8 in a dose-dependent manner. Also it was found that inflammatory mediators of the expression of cyclooxygenase-2 (COX-2) inhibition were also brought, the expression of which is increased $PGE_2$ by COX-2 also inhibited. Finally RSE extracts measure the seed expression of filaggrin in the skin barrier, the main factor of the extract could be confirmed to increase the expression of the filaggrin damaged as a result of this concentration-dependent manner. Through this, it was able to confirm that the efficacy RSE extract to protect the inflammation by restoring the damaged layers of the epidermis. Results from more than RSE extract was able to confirm that the extract that has anti-inflammatory effects by improving the inflammation being produced from UVB.