Is the anti-inflammatory effect of regular exercise responsible for reduced cardiovascular disease?

2007 ◽  
Vol 112 (11) ◽  
pp. 543-555 ◽  
Author(s):  
Kenneth R. Wilund

Engaging in regular physical activity reduces the risk of developing CVD (cardiovascular disease), but it is not certain to what degree this may be due to the anti-inflammatory effects of exercise. Following acute exercise, there is a transient increase in circulating levels of anti-inflammatory cytokines, whereas chronic exercise reduces basal levels of pro-inflammatory cytokines. Exercise training also induces the expression of antioxidant and anti-inflammatory mediators in the vascular wall that may directly inhibit the development of atherosclerosis. Limited studies in humans and more comprehensive assessments in animal models have confirmed that exercise is atheroprotective and helped identify a number of the mechanisms to explain these effects. This review explores the relationship between systemic and vascular wall inflammation and the role that the anti-inflammatory effects of exercise have on the development and progression of CVD.

2021 ◽  
Vol 11 ◽  
Author(s):  
Mariaelena Filippelli ◽  
Giuseppe Campagna ◽  
Pasquale Vito ◽  
Tiziana Zotti ◽  
Luca Ventre ◽  
...  

Purpose: To determine the levels of pro-inflammatory cytokines and soluble mediators (TNF-α, IL6, IL2, and PDGF-AB) in 28 vitreous biopsies taken from patients with proliferative diabetic retinopathy (PDR) and treated with increasing doses of curcumin (0. 5 and 1 μM), with or without homotaurine (100 μM) and vitamin D3 (50 nM).Materials and Methods: ELISA tests were performed on the supernatants from 28 vitreous biopsies that were incubated with bioactive molecules at 37°C for 20 h. The concentration of the soluble mediators was calculated from a calibration curve and expressed in pg/mL. Shapiro-Wilk test was used to verify the normality of distribution of the residuals. Continuous variables among groups were compared using the General Linear Model (GLM). Homoscedasticity was verified using Levene and Brown-Forsythe tests. Post-hoc analysis was also performed with the Tukey test. A p ≤ 0.05 was considered statistically significant.Results: The post-hoc analysis revealed statistically detectable changes in the concentrations of TNF-α, IL2, and PDGF-AB in response to the treatment with curcumin, homotaurine, and vitamin D3. Specifically, the p-values for between group comparisons are as follows: TNF-α: (untreated vs. curcumin 0.5 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.008, (curcumin 0.5 μM vs. curcumin 0.5 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.0004, (curcumin 0.5 μM vs. curcumin 1 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.02, (curcumin 1 μM vs. curcumin 0.5 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.025, and (homotaurine 100 μM + vitamin D3 50 nM vs. curcumin 0.5 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.009; IL2: (untreated vs. curcumin 0.5 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.0023, and (curcumin 0.5 μM vs. curcumin 0.5 μM+ homotaurine 100 μM + vitamin D3 50 nM) p = 0.0028; PDGF-AB: (untreated vs. curcumin 0.5 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.04, (untreated vs. curcumin 1 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.0006, (curcumin 0.5 μM vs. curcumin 1 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.006, and (homotaurine 100 μM + vitamin D3 50 nM vs. curcumin 1 μM + homotaurine 100 μM + vitamin D3 50 nM) p = 0.022. IL6 levels were not significantly affected by any treatment.Conclusions: Pro-inflammatory cytokines are associated with inflammation and angiogenesis, although there is a discrete variability in the doses of the mediators investigated among the different vitreous samples. Curcumin, homotaurine, and vitamin D3 individually have a slightly appreciable anti-inflammatory effect. However, when used in combination, these substances are able to modify the average levels of the soluble mediators of inflammation and retinal damage. Multi-target treatment may provide a therapeutic strategy for diabetic retinopathy in the future.Clinical Trial Registration : The trial was registered at clinical trials.gov as NCT04378972 on 06 May 2020 (“retrospectively registered”) https://register.clinicaltrials.gov/prs/app/action/SelectProtocol?sid = S0009UI8&selectaction = Edit&uid = U0003RKC&ts = 2&cx = dstm4o.


Author(s):  
Aline B. Maddux ◽  
Gordon R. Bernard

Severe sepsis is a hyperimmune response to an infectious stimulus resulting in a surge of cytokines and mediators of inflammation. High circulating levels of pro-inflammatory cytokines lead to shock, multiple organ failure, and death in septic patients. It has been recognized that patients with sepsis progress into a state of immune paralysis characterized by immune cell apoptosis and high levels of anti-inflammatory cytokines… Anti-inflammatory cytokines suppress production of pro-inflammatory cytokines and inhibit monocytes from presenting antigens to other immune cells. Immune paralysis probably leads to the patient’s inability to clear infections resulting in the delayed mortality observed in some septic patients. Beneficial therapies for sepsis are limited to the mechanical eradication of the source of infection, antibiotics, the judicious use of fluids to support organ perfusion, and oxygen supplementation. Strategies to counteract the hyper- and hypo-immune phases of sepsis have been tried thus far with only minimal success.


Author(s):  
Nithya Sermugapandian ◽  
Rubini R ◽  
Martina V

 Objective: In this study, we evaluated the anti-inflammatory effect of Elettaria cardamom oil and the underlying mechanism using in vivo models of inflammation.Methods: Male Sprague–Dawley rats, 4-6 weeks old, weighing 120-130 gms are used for the study. The anti-inflammatory study of E. cardamom oil was studied by injecting 0.1 ml of 1% carrageenan to the subplantar region of the right hind paw of rats. The development of acute inflammation was measured at the end of every 1st, 2nd, 3rd, 4th, 5th, and 6th h using plethysmometer.Results: As results from the above study, E. cardamom oil at a dose of 0.175 ml/kg was less significant than that of E. cardamom oil at a dose of 0.280 ml/kg when given orally. A p<0.05 shows a significant decrease in paw edema. It also reduced the levels of pro-inflammatory cytokines such as tumor necrosis factor α, interleukin (IL) 1, and IL 6 levels in the serum. The histopathology results also showed a significant reduction of congested blood vessels with no marked impression for inflammation.Conclusion: E. cardamom oil possesses anti-inflammatory activity in dose-dependent manner as they inhibit the levels of pro-inflammatory cytokines.


2017 ◽  
Vol 15 (3) ◽  
pp. 143-151 ◽  
Author(s):  
Rui Fei ◽  
Huan Zhang ◽  
Sheng Zhong ◽  
Baigong Xue ◽  
Yuanqi Gao ◽  
...  

Serine protease inhibitors (serpins) are a superfamily of proteins involved in many important biological processes, including inflammation. Serpins dysfunction-related diseases are mainly treated by augmentation therapy using serpins purified from human plasma. Pnserpin from hyperthermophilic archaeon Pyrobaculum neutrophilum showed protease inhibition activity and high stability. In this study, we examined the anti-inflammatory activity of Pnserpin using xylene-induced acute inflammatory model of mouse ear swelling and lipopolysaccharide (LPS)-induced murine RAW 264.7 macrophages cellular model. The inhibition of mouse ear swelling and the production of pro-inflammatory cytokines in mouse serum or in macrophages cell were used to evaluate the anti-inflammatory effect of Pnserpin. Our results showed that Pnserpin could inhibit the xylene-induced mouse ear swelling and suppress the production of pro-inflammatory cytokines in mouse serum and in LPS-induced RAW264.7 cells. This study indicated that Pnserpin might have anti-inflammatory effect in vivo and in vitro.


Dose-Response ◽  
2020 ◽  
Vol 18 (4) ◽  
pp. 155932582096172
Author(s):  
Ilaria Floris ◽  
Thorsten Rose ◽  
Juan Antonio Collado Rojas ◽  
Kurt Appel ◽  
Camille Roesch ◽  
...  

Tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) are pro-inflammatory cytokines involved in acute and chronic inflammatory diseases. Indeed, immunotherapy blocking these 2 cytokines has been developed. Micro-immunotherapy (MI) also uses ultra-low doses (ULD) of pro-inflammatory cytokines, impregnated on lactose-sucrose pillules, to counteract their overexpression. The study has been conducted with 2 objectives: examine the anti-inflammatory effect in vitro and the capacity of 2 unitary medicines, TNF-α (27 CH) and IL-1β (27 CH), to reduce the secretion of TNF-α in human primary monocytes and THP-1 cells differentiated with phorbol-12-myristate-13-acetate, after lipopolysaccharide (LPS) exposure; then, investigate the presence of particles possibly containing starting materials using tunable resistive pulse sensing technique. The results show that the unitary medicines, tested at 3 pillules concentrations (5.5, 11 and 22 mM), have reduced the secretion of TNF-α in both models by about 10−20% vs. vehicle control, depending on concentration. In this exploratory study, particles (150−1000 nm) have been detected in MI ULD-impregnated pillules and a hypothesis for MI medicines mode of action has been proposed. Conscious that more evaluations are necessary, authors are cautious in the conclusions because the findings described in the study are still limited, and future investigations may lead to different hypothesis.


Molecules ◽  
2019 ◽  
Vol 24 (5) ◽  
pp. 872 ◽  
Author(s):  
Rui Wang ◽  
Zhaoyue Dong ◽  
Xiaozhong Lan ◽  
Zhihua Liao ◽  
Min Chen

Pterocephalus hookeri was used as a traditional Chinese medicine for the treatment of rheumatoid arthritis. Sweroside was a main iridoid isolated from P. hookeri. The present study aimed to investigate the anti-inflammatory effect mechanism of sweroside. In RAW264.7 cells induced by lipopolysaccharide (LPS), the abnormal proliferation, the NO content increase, and the downregulated Sirtuin1 (SIRT1) expression were observed. Sweroside could alleviate the inflammation by inhibiting cell proliferation through arresting the cell cycle at the G0/G1 phase, by suppressing pro-inflammatory cytokines and by promoting anti-inflammatory cytokines in LPS-induced RAW264.7 cells. Further mechanism research indicated that sweroside could activate the SIRT1, then suppress the nuclear factor-kappa B (NF-κB) and promote the Forkhead transcription factor O1 (FOXO1) signaling pathways. The present study indicated that sweroside may be the main anti-inflammatory constituent of P. hookeri and a promising candidate for anti-inflammation therapy.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ieva Rinkunaite ◽  
Egidijus Simoliunas ◽  
Milda Alksne ◽  
Dominyka Dapkute ◽  
Virginija Bukelskiene

Abstract Background Curcumin, a natural polyphenolic substance, has been known for more than two millennia as having strong anti-inflammatory activity towards multiple ailments, including arthritis. The main drawback of curcumin is its poor solubility in water, which leads to low intestinal absorption and minimal bioavailability. In this study, we aimed to compare the anti-arthritic in vivo effect of different curcumin preparations – basic curcumin extract, micellar curcumin, curcumin mixture with piperine, and microencapsulated curcumin. Methods Arthritis was induced in Wistar rats by complete Freund’s adjuvant, and the severity of arthritis was evaluated daily using the arthritis score system. Curcumin preparations were given to animals per os daily for 20 consecutive days, starting at 6th day after arthritis induction. To determine the inflammatory background, pro-inflammatory cytokines were determined using the ELISA test. In addition, hematologic test, weight change, and limb swelling were tracked. Results Our results indicate that curcumin had a rather weak effect on arthritis progression in the Wistar rat model, microencapsulated curcumin effectively prevented the progression of arthritis – the disease stabilized after 10 days of supplementation. It also reduced the levels of immune cells (neutrophils and leukocytes), as well as pro-inflammatory cytokines – TNFα, IL-1, and IL-6, which levels were close to arthritis-free control. Other formulations of curcumin had lower or no effect on arthritis progression. Conclusion Our study shows that the same concentrations of curcumin had a distinctly expressed positive anti-inflammatory effect depending on the form of its delivery. Specifically, we found that microencapsulated curcumin had the most promising effect for treatment. Graphical abstract


Toxins ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 498
Author(s):  
Yunxia Liu ◽  
Yan Li ◽  
Yuchen Zhu ◽  
Liping Zhang ◽  
Junyu Ji ◽  
...  

Buthus martensii Karsch (BmK), is a kind of traditional Chinese medicine, which has been used for a long history for the treatment of many diseases, such as inflammation, pain and cancer. In this study, DKK-SP1/2/3 genes were screened and extracted from the cDNA library of BmK. The DKK-SP1/2/3 were expressed by using plasmid pSYPU-1b in E. coli BL21, and recombinant proteins were obtained by column chromatography. In the xylene-induced mouse ear swelling and carrageenan-induced rat paw swelling model, DKK-SP1 exerted a significant anti-inflammatory effect by inhibiting the expression of Nav1.8 channel. Meanwhile, the release of pro-inflammatory cytokines (COX-2, IL-6) was decreased significantly and the release of anti-inflammatory cytokines (IL-10) were elevated significantly. Moreover, DKK-SP1 could significantly decrease the Nav1.8 current in acutely isolated rat DRG neurons. In the acetic acid-writhing and ION-CCI model, DKK-SP2 displayed significant analgesic activity by inhibiting the expression of the Nav1.8 channel. Moreover, DKK-SP2 could significantly inhibit the Nav1.7 current in the hNav1.7-CHO cells.


2021 ◽  
Author(s):  
Xuancheng Zhang ◽  
Ang Li ◽  
Kang Han ◽  
He Zhang ◽  
Xiaoqiao Huangfu ◽  
...  

Abstract Background: Glucocorticoids (GCs) injections are commonly used to relieve pain and improve function in patients with multiple shoulder disability, they cause detrimental effects on the rotator cuff tendons. Adipose stem cell-derived exosomes (ASC-Exos) reportedly recover impaired tendon matrix metabolism by maintaining tissue homeostasis. It is unclear whether additional ASC-Exos treatment overrides the detrimental effects of GCs without interfering with their anti-inflammatory effects.Methods: The in vitro studies included inflammatory analysis and cytoprotective analysis. In the inflammatory analysis, rat raw cells were treated with saline, GCs, or GCs + ASC-Exos and evaluated regarding cellular proliferation, migration, and secretion of inflammatory-related cytokines. In the cytoprotective analysis, rat tenocytes were treated with saline, GCs, or GCs + ASC-Exos and evaluated regarding cellular proliferation, migration, senescence, apoptosis, and transcription of tenocytic genes. In the in vivo studies, a subacromial injection of saline, GCs, or GCs + ASC-Exos was performed in a chronic injured-intact rotator cuff rat model. Histological and biomechanical analysis were performed 1 week to evaluate the protective effect of ASC-Exos against GCs-induced detriments on injured-intact in rotator cuffs.Results: In the in vitro inflammatory analysis, GCs treatment significantly decreased the proliferation, migration, and secretion of pro-inflammatory cytokines in raw cells, and increased the secretion of anti-inflammatory cytokines; additional ASC-Exos treatment further significantly decreased the secretion of pro-inflammatory cytokines and increased the secretion of anti-inflammatory cytokines, while restoring GCs-suppressed cellular proliferation and migration. In the in vitro cytoprotective analysis, GCs treatment significantly decreased the proliferation, migration, and transcription of tenocytic matrix molecules of tenocytes, and significantly increased their senescence, apoptosis, and transcription of ROS and tenocytic degradative enzymes; additional ASC-Exos treatment significantly improved the GCs-suppressed cellular proliferation, migration, and transcription of tenocytic matrix molecules, transcription of tenocytic degradative enzyme inhibitors, and significantly decreased the GCs-induced cell senescence, apoptosis, and transcription of ROS and tenocytic degradative enzymes. In the in vivo studies, an additional ASC-Exos injection restored the impaired histological and biomechanical properties owing to GCs administration.Conclusion: ASC-Exos may exert a stronger anti-inflammatory effect in combination with GCs, and override their detrimental effects on the rotator cuff.


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