جستجوی مقالات مرتبط با کلیدواژه "pro-inflammatory cytokines" در نشریات گروه "پزشکی"

Under hyperglycemic conditions, inflammatory processes with damage to the peripheral nerves are involved in the occurrence of neuropathy. This study aimed to compare the anti-inflammatory effects of metformin (synthetic drug) with gallic acid (natural compound) in hyperglycemic conditions.

Hyperglycemia was induced in male rats by the intraperitoneal injection of Streptozotocin (STZ) at a dose of 60 mg/Kg. For this research, rats were divided into four groups. Two groups were healthy control and hyperglycemic control rats that did not receive any drugs. The other two groups were hyperglycemic rats, which respectively received Metformin at a dose of 300 mg/kg/day and gallic acid at a dose of 40 mg/kg/day. At the end of the 8-week period, the rats in all groups were anesthetized and a sample of their sciatic nerve was taken to measure the expression level of genes related to pro-inflammatory cytokines IL-6, IL-1β and TNF-α. Data analysis was done by SPSS software and comparison between average data was done by one-way ANOVA and Tukey's post hoc test.

Induction of hyperglycemic conditions in rats increased the expression of genes related to pro-inflammatory cytokines IL-6 (p=0/000), IL-1β (p=0/008) and TNF-α (p=0/005). However, administration of metformin and gallic acid to hyperglycemic rats for 8 weeks reduced the expression of IL-6, IL-1β and TNF-α genes (p˂0.05).

Gallic acid, like metformin, with its anti-inflammatory properties, can be effective in improving complications caused by hyperglycemic conditions, especially neuroinflammation, and it is hoped that it will be clinically useful for diabetic patients in the future.

Menopause and especially acute menopause due to surgery is associated with many complications in women. The aim of this study was to determine the effects of genistein and regular swimming exercise (alone/or in combination) on pain through a possible mechanism of inflammation and oxidative stress in ovariectomized rats.

In this study, rats were divided into six groups, including: control, sham, ovariectomy (OVX), ovariectomized with eight weeks of swimming exercise training (OVX.E), ovariectomized with eight weeks of genistein administration (OVX.G), and ovariectomized with eight weeks of combined treatment (OVX.G.E). The effects of genistein and/or exercise were evaluated by examining the pain intensity with tail-flick and formalin tests. The serum levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), total antioxidant capacity (TAC), total oxidant status (TOS), and malondialdehyde (MDA) were also evaluated by ELISA and spectrophotometer.

In the OVX group compared to the control group, tail-flick and formalin tests showed an increase in pain response. Also, a significant increase in the serum levels of IL-1β, TNF-α, MDA, TOS and a decrease in TAC was observed in the OVX group, however, in the OVX.E, OVX.G and especially OVX.E.G groups, pro-inflammatory cytokines and oxidative stress as well as pain responses showed a significant decrease compared to the OVX group.

A combination of genistein and regular swimming exercise was synergistically more effective in reducing acute and chronic pain than using them alone in the postmenopausal period.

The lifestyle in the machine world of the last century is low mobility and very little activity with the use of various types of equipment and facilities. This lifestyle is the basis of many physical and mental complications in today's humans and causes the occurrence of many chronic diseases such as diabetes and obesity, increased blood pressure, and metabolic syndrome as a whole, followed by widespread inflammation in the body. Increased inflammation in the body, especially in the central nervous system of the brain, can lead to neurological and behavioral disorders. The immune system plays an important role in regulating brain homeostasis. Even small amounts of Neuroinflammation can disrupt physiological processes that occur in the hippocampus, including neurogenesis. Inflammatory factors include inflammatory cytokines such as interleukin 6 and alpha necrosis factor. In recent years, human and animal studies have shown that the increase of these two cytokines in the body and brain can lead to a decrease in memory. However, its exact mechanisms are not fully understood. Recent findings also show that IL-6 is involved in cognitive functions and memory, and increasing its level in brain areas such as the hippocampus may lead to a decrease in memory, on the other hand, anti-inflammatory factors such as IL-10 (potential role in immunotherapy and prevention) And progress or recurrence of neuropathy play a role in the body. Interleukin 10 prevents the production and secretion of inflammatory cytokines. This cytokine is secreted to suppress pro-inflammatory effects in stressful situations. The most important brain region involved in cognitive functions and memory is the hippocampus. Any damage to nerve cells in this area of ​​the brain can be directly related to cognitive disorders. Exercise is known as a risk modulating factor for reducing memory and learning in neurological diseases and even Alzheimer's disease. It is assumed that neurological and vascular adaptation to exercise and physical activity improves cognitive function through neurogenesis, reducing pro-inflammatory processes and reducing cell damage. Physical activity can modulate microglial activation in the CNS. Low-intensity exercise is sufficient to induce an anti-microglial activation effect by regulating the expression of various factors. Some of these factors (eg, Myokines) can directly prevent microglial activation through various mechanisms that prevent Neuroinflammation in the CNS. Be secreted from different sources (such as damaged neurons, astrocytes, and microglia). According to past research and since the effect of swimming exercise on the amount of pro-inflammatory and inflammatory cytokines such as IL-6 and IL-10 and as a result on the amount of spatial memory in adult rats has not been investigated, this research was conducted in order to make its results for patients suffering from memory loss. It should be implemented in clinics as a suggested non-pharmacological and effective treatment, especially in elderly people who have been diagnosed with Alzheimer's disease.

C57BL6 male mice (approximate age 10-11 weeks) and (weight 18-21 grams) were obtained from Pasteur Institute of Iran and kept under light conditions of 12 hours of light and 12 hours of darkness (8 am to 8 pm) and a temperature of 1±23 degrees Celsius and humidity of 40-50% and enough water and food were freely available to them. The data were analyzed using t-test analysis and P<0.05 was considered significant. SPSS software was used for analysis and GraphPad Prism software (V8.5) was used for drawing graphs.

Mice who have experienced swimming showed a higher level of the cytokine interleukin 10 in their hippocampus compared to the control group (p=0.002) and the significant effect of swimming training on spatial memory was confirmed and swimming led to a decrease in hippocampal inflammation. Through the reduction of interleukin 6 levels compared to control group mice (p=0.025).

In this study, the effect of swimming training on the amount of inflammatory and anti-inflammatory factors and spatial memory was investigated, and according to the tests and results obtained, it was determined that swimming training has a significant effect on the reduction of the inflammatory factor interleukin-6 and the increase of the anti-inflammatory factor interleukin-10. It is effective in reducing the number of cognitive disorders, including spatial memory. Aerobic exercise can partially reverse the cognitive decline associated with diabetes by reducing the oxidative stress and inflammatory environment in the brain of T2D animals. Regular exercise has significant benefits on insulin sensitivity in adults with type 2 diabetes and may persist for more than 72 hours after the last exercise session. Long-term intense exercise can generally lead to higher levels of inflammatory mediators and thus may increase the risk of injury and chronic inflammation. In contrast, moderate exercise or vigorous exercise with adequate rest periods can achieve maximum benefit. Exercise can protect against age-related cognitive decline, Alzheimer's disease (AD), and vascular dementia. We provide evidence of swimming exercise in other animal models that assess cognitive functions and hippocampal inflammatory and Neurotrophic systems. In support of our data, studies are showing that swimming exercise can improve cognitive deficits in various animal models. Regular swimming exercise in mice significantly increases working, spatial and cognitive memory in Alzheimer's disease conditions or is effective in healthy conditions as well. Overall, this study shows that swimming exercise may be suggested as a complementary non-pharmacological strategy for the treatment of cognitive decline in affected individuals. However, further studies should focus on training protocols that can be used in humans.

Recent studies have demonstrated an important role for Th-17 lymphocytes and other cytokines in pathogenesis of multiple sclerosis. Although previous studies have demonstrated the anti-inflammatory potential of troxerutin,  the effects of troxerutin on multiple sclerosis have not been studied so far. The present study was carried out to investigate the therapeutic effects of troxerutin on experimental autoimmune encephalomyelitis (EAE) by reducing the production of pro-inflammatory cytokines IL-17, IL-1, TNF-α, and reducing nitric oxide levels and reducing immune cell proliferation.

EAE was induced by MOG35-55 peptide and complete Freundchr('39')s adjuvant in female C57BL/6 mice. The mice were placed in four therapeutic groups of 5. Treatment with troxerutin (135 mg/kg daily) was started in the treatment group when they developed a disability score. Signs of disease were recorded daily until the day 21 when mice were sacrificed. Then, Immune cells were tested to assess proliferation rate, cytokine, and nitric oxide by the 3-(4,5 dimethylthiozol-2-yl)-2,5- diphenyl-tetrazolium bromide (MTT) assay, enzyme-linked immunosorbent assay (ELISA), and Greiss, respectively.

The troxerutin significantly decreased the clinical signs of established EAE. Troxerutin significantly decreased the production of pro-inflammatory cytokines IL-17, IL-1 TNF-α and decreased levels of nitric oxide, while reduced the proliferation of immune cells (p<0.05).

Parallel with decreasing proliferation of Immune cells and cytokine production, troxerutin ameliorated established EAE.

Various lesions trigger an inflammatory response in the host body. These injuries include surgical stress Surgery exerts stress on the body. Systemic inflammatory syndrome is a reflection of the degree of surgical stress and as a system of assessing the severity of postoperative stress. Regular complexes of inflammatory polypeptide molecules contribute to the development of this inflammatory response known as cytokines. Lack of local control over the release of these cytokines can cause systemic inflammation, and potentially devastating complications.
In writing this review articles, articles indexed in the following databases were used: Science Direct, Scopus, Springer Science, PubMed and Google Scholar Ninety two related research papers, including quantitative and qualitative researches in English, related to the last 40 years (1979- 2019) were included in this study. The current review article has been written based on 92 articles and the keywords of “Surgical Stress, Systemic Inflammatory Response Syndrome, Pro-Inflammatory Cytokines, and Anti-Inflammatory Cytokines”.Studies in humans and animal models suggest that both types of pro-inflammatory and anti-inflammatory cytokines following diverse primary stimuli, including endotoxin release, complement system activation, ischemia-perfusion injury, and other ways.

Inflammatory and anti-inflammatory cytokines are the result of a complex unpredictable interaction of immune system effects on the body and even multiple effects on body organs. New therapeutic strategies for the absorption of cytokines are a powerful way to enhance and improve proper output, following systemic inflammatory response syndrome.

Ginger has anti-inflammatory properties. The purpose of the present study was to determine the response of pro-inflammatory cytokines, interleukin-6 (IL-6), and interleukin-8 (IL-8) to short-term supplementation with ginger and exhaustive exercise in male athletes.

In a semi-experimental study, 40 male athletes were divided into 4 groups of control, supplementation, exercise, and supplementation with exercise (10 individuals each). Groups of supplementation and supplementation with exercise took two 500 mg capsules of powdered ginger per day for one week. Participants in exercise and supplementation with exercise groups performed Bruce test. Plasma levels of IL-6 and IL-8 were collected and measured before and immediately after the test. Data was analyzed using paired sample t-test and one-way analysis of variance.

No significant difference was found between plasma IL-6 and IL-8 in control group between pretest and posttest (P<0.05); however, plasma IL-6 and IL-8 increased significantly in exercise group and decreased significantly in supplementation and supplementation with exercise groups )P<0.05(. In addition, a significant difference was found between plasma IL-6 and IL-8 in the four groups (P<0.05), so that plasma IL-6 and IL-8 decreased significantly in supplementation and supplementation with exercise groups compared with control group, in supplementation group compared with exercise group, and in supplementation with exercise group compared with exercise group (P<0.05).

It appears that the consumption of ginger, as an anti-inflammatory supplement can have positive effect on the reduction of pro-inflammatory cytokines, IL-6, and IL-8, and thus the improvement of the immune system of male athletes.