The effect of iodosteviol glycoside on hormonal status and the level of proinflammatory cytokines in experimental hypothyroidism

2021 ◽  
Vol 22 (1) ◽  
pp. 14-19
Author(s):  
L. F. Almakaeva ◽  
◽  
G. A. Bajburina ◽  
F. H. Kamilov ◽  
D. Yu. Grebnev ◽  
...  
Keyword(s):  
Blood Plasma ◽  
Inflammatory Cytokines ◽  
Recovery Period ◽  
Experimental Comparison ◽  
Intragastric Administration ◽  
Hormonal Status ◽  
Rebaudioside A ◽  
Parathyroid Hormones ◽  
White Rats ◽  
Pro Inflammatory Cytokines

Aim. Study of the hormonal status and the level of pro-inflammatory cytokines in the blood plasma in experimental hypothyroidism and the effect of the organoiodine complex with rebaudioside A. Materials and methods. Endemic thyroid dysfunction was modeled in sexually mature male white rats by daily intragastric administration of thiamazole for 21 days at a dose of 25 mg / kg. In the blood serum, the content of thyrotropin, total and free thyroxine, total triiodothyronine, testosterone, luteinizing, follicle-stimulating and parathyroid hormones, corticosterone, interleukins-1-beta and -6, tumor necrosis factor-alpha was studied. The animals were divided into four groups of 10 each: control, experimental, comparison and main. Results. The development of hypothyroidism was characterized by an increase in the content of thyroid-stimulating, luteinizing, follicle-stimulating and parathyroid hormones, as well as pro-inflammatory cytokines. At the same time, testosterone levels decreased, while corticosterone levels were within physiological fluctuations. Conclusion. The use within 30 days of the recovery period after the development of hypothyroidism of the iodosaccharide complex based on steviol glycoside rebaudioside A used in the food industry daily at a dose of 25 mg / kg of rat weight led to the normalization of the content of the studied hormones and cytokines in the blood plasma, characterizing the effectiveness of the new organoiodine product.

scholarly journals Studying the harmlessness of triolact in experiment on white rats

2019 ◽  
pp. 55-58
Author(s):  
S. V. Shabunin ◽  
G. A. Vostroilova ◽  
P. A. Parshin ◽  
A. A. Korchagina ◽  
N. A. Grigorieva ◽  
...  
Keyword(s):  
Biochemical Parameters ◽  
Clinical Status ◽  
Recovery Period ◽  
Intragastric Administration ◽  
Animal Blood ◽  
Toxic Dose ◽  
White Rats ◽  
Morphological Picture ◽  
Negative Effect

The aim of the research was to study the effect of the complex antimicrobial drug Triolact on blood morphological and biochemical parameters of white rats in a subacute experiment. It was established in the course of the experiment that the dose of 500.0 mg/kg is the threshold dose, and 100.0 mg/kg is the maximum no-effect dose. Triolact does not have a negative effect on the clinical status, morphological and biochemical parameters of animal blood  in case of repeated intragastric administration for 14 days in doses of 100.0 mg/kg and 250.0 mg/kg both during the application of the drug and in the recovery period. The changes caused by the dose of 500.0 mg/kg are reversible (increase of α-globulin level by 6.9%, creatinine - by 22.9% and urea - by 15.1%), as these indicators in experienced animals returned to normal within the 10 days recovery period. It can be concluded that the  determination of the toxic dose in the format of the present experiment was failed, taking into account the morphometric analysis, macro- and microscopic examination of organs, and studying the morphological picture of blood and biochemical parameters.

scholarly journals Tempuyung Leaves (Sonchus arvensis) Ameliorates Monosodium Urate Crystal-Induced Gouty Arthritis in Rats through Anti-Inflammatory Effects

2020 ◽  
Vol 8 (A) ◽  
pp. 220-224
Author(s):  
Rachmat Hidayat ◽  
Muhammad Reagan ◽  
Lusia Hayati
Keyword(s):  
Synovial Fluid ◽  
Inflammatory Cytokines ◽  
Gouty Arthritis ◽  
Monosodium Urate ◽  
White Rats ◽  
Tnf Α ◽  
Sonchus Arvensis ◽  
Msu Crystals ◽  
Pro Inflammatory Cytokines

BACKGROUND: Gouty arthritis, a chronic inflammatory disease characterized by severe pain and swelling in one or more synovial joints, as a result from joint deposition of monosodium urate (MSU) crystals. Tempuyung (Sonchus arvensis) is a plant that has been extensively studied in the role of shedding kidney stones and diuretics. It is presumed that it also has great potential in shedding MSU crystals in the joints. AIM: This study focused on exploring the anti-inflammatory role of tempuyung extract (ET) on pro-inflammatory cytokines in gout arthritis white rats. METHODS: The extraction of tempuyung was performed to obtain ET. A total of 30 Wistar rats were randomly divided into the following six groups, each containing five rats: Normal control group, MSU group (negative control), MSU + colchicine group (Col; 0.28 mg/kg), and MSU + ET group (at dose of 25 mg/kg, 50 mg/kg, and 100 mg/kg). Gouty arthritis was induced with 50 ml of MSU solution (20 mg/ml), which was injected into the left ankle joint cavity on day 7. Synovial fluid was evacuated for the examination of Western blotting of tumor necrosis factor-α (TNF-α). A portion of synovial tissue was fixed in 4% paraformaldehyde buffer for histopathological examination. Interleukin (IL)-1β levels in the synovial fluid of the joints were examined by IL-1β rat enzyme-linked immunosorbent assay. Statistical analysis was performed with way ANOVA followed by post hoc. RESULTS: The histopathological image of the MSU model group showed a large number of inflammatory cells depicting an inflammatory reaction. This inflammation response decreased in the ET treatment group in dose-dependent manner. ET showed the effect of decreased pro-inflammatory cytokines expression in both IL-1β and TNF-α, as the dose increased. CONCLUSION: Tempuyung extract possessed an anti-gout arthritis effect in white rats induced by MSU, by reducing the inflammatory response in the synovial joint.

Positive effects of total recovery period on anti- and pro-inflammatory cytokines are not linked to performance re-establishment in overtrained mice

Cytokine ◽  
2018 ◽  
Vol 103 ◽  
pp. 69-76 ◽  
Author(s):  
Alisson L. da Rocha ◽  
Ana P. Pinto ◽  
Bruno C. Pereira ◽  
Eike B. Kohama ◽  
Gustavo P. Morais ◽  
...  
Keyword(s):  
Inflammatory Cytokines ◽  
Recovery Period ◽  
Total Recovery ◽  
Positive Effects ◽  
Pro Inflammatory Cytokines

Cytokine synergy, collagenases and cartilage collagen breakdown

2003 ◽  
Vol 70 ◽  
pp. 125-133 ◽  
Author(s):  
Tim E. Cawston ◽  
Jenny M. Milner ◽  
Jon B. Catterall ◽  
Andrew D. Rowan
Keyword(s):  
Matrix Metalloproteinases ◽  
Inflammatory Cytokines ◽  
Activator Protein 1 ◽  
Activator Protein ◽  
And Cartilage ◽  
Pro Inflammatory Cytokines

We have investigated proteinases that degrade cartilage collagen. We show that pro-inflammatory cytokines act synergistically with oncastatin M to promote cartilage collagen resorption by the up-regulation and activation of matrix metalloproteinases (MMPs). The precise mechanisms are not known, but involve the up-regulation of c-fos, which binds to MMP promoters at a proximal activator protein-1 (AP-1) site. This markedly up-regulates transcription and leads to higher levels of active MMP proteins.

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.

Saponins from saffron corms inhibit the secretion of pro-inflammatory cytokines at both protein and gene levels

2019 ◽  
Author(s):  
M Keller ◽  
S Fankhauser ◽  
N Giezendanner ◽  
M König ◽  
F Keresztes ◽  
...  
Keyword(s):  
Inflammatory Cytokines ◽  
Pro Inflammatory Cytokines
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