Background:Cardiovascular problems are among the most common health issues. A considerable number of cardiac patients undergo cardiac surgery, and coronary artery disease patients constitute about two-thirds of all these surgeries. The application of cardiopulmonary bypass (CBP) usually results in some untoward effects.Objectives:Studies have suggested magnesium sulfate (MgSO4) as an anti-inflammatory agent in a coronary artery bypass graft (CABG). This study aimed to assess the effect of an IV MgSO4 infusion during elective CABG (with CBP) on the blood levels of interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α).Materials and Methods:During a 12 month period, after review board approval and based on inclusion and exclusion criteria, 90 patients were selected and entered randomly into one of the two study groups (MgSO4 or placebo). Anesthesia, surgery and CBP were performed in exactly the same way, except for the use of MgSO4 or a placebo. Both preoperative and postoperative plasma levels of IL-6 and TNF-α were checked and compared between the two groups using an ELISA.Results:There was no difference found between the two groups with regard to; gender, basic variables, Ejection Fraction (EF), CBP time and aortic cross-clamp time. The preoperative levels of IL-6 and TNF-α were not different; however, their postoperative levels were significantly higher in the placebo group (P value = 0.01 for IL-6 and 0.005 for TNF-α).Conclusions:This study showed that MgSO4 infusion could suppress part of the inflammatory response after CABG with CBP. This was demonstrated by decreased levels of interleukin-6 and TNF-α in postoperative serum levels in elective CABG with CBP.
Background: Resistance training and Spirulina consumption could change the expression of the gene involved in hypertrophy. Objectives: The study investigated the effect of eight weeks of resistance training with Spirulina platensis ingestion on the heart weight and cardiac CCAAT-enhancer-binding proteins beta (C/EBPβ) expression in male rats. Methods: We divided 32 male Sprague Dally rats into four groups: control (CO; n = 8), Spirulina platensis (SP; n = 8), resistance training (RE; n = 8), and Spirulina plus resistance training (SP + RE; n = 8). The resistance training group practiced five sessions a week for eight weeks. Spirulina 200 mg/kg/day was used in the supplement group and the exercise plus Spirulina platensis group. Twenty-four hours after the last training session, the gene expression was measured using real-time PCR. Results: The results showed that resistance training significantly increased heart weight (P = 0.001) and left ventricular weight (P = 0.001) but significantly decreased CEBP (P = 0.001). Spirulina insignificantly increased heart weight (P = 0.46), significantly increased left ventricular weight (P = 0.001), and significantly decreased CEBP (P = 0.02). On the other hand, resistance training plus Spirulina significantly increased heart weight (P = 0.001) and left ventricular weight (P = 0.001) but had no significant effect on C/EBPβ reduction (P = 0.10). Conclusions: A combination of resistance training and Spirulina supplementation cannot have a significant effect on the important signaling factor in heart hypertrophy.
Background: Irritant contact dermatitis is a common inflammatory skin disease characterized by skin barrier dysfunction, eczematous dermatitis, and chronic itching. This disease severely affects the quality of life. Considering that the current treatment approaches are not ideal, more extensive research is needed to develop new treatments. Mainly, a mouse model is needed to investigate the effectiveness of new drugs to treat this disease. Objectives: This study was conducted to create a mouse model of irritant contact dermatitis. Methods: In the current study, we used BALB/c female mice to prepare a mouse model of irritant contact dermatitis. To induce irritant contact dermatitis, we used a dinitrochlorobenzene mixture with acetone/olive oil as an irritant. After 10 days of application, the mouse skin tissue was isolated and examined in terms of histopathology. Results: The introduced protocol created an irritant contact dermatitis model clinically and histopathologically. Conclusions: In the present study, we introduced a new protocol using a mixture of dinitrochlorobenzene and acetone/olive oil to create an irritant contact dermatitis model. Mouse models have been extensively used to discover the complex mechanisms of irritant contact dermatitis and provide a preclinical platform before conducting clinical interventional research on humans to evaluate a new therapeutic approach. However, one should always look for models that cause the least pain and suffering in the animal and simultaneously are simple and reliable for the desired studies. Thus, our protocol is a new approach that can be effective and painless in creating a model of irritant contact dermatitis.
The effect of resistance training and a herbal supplement on muscular signaling pathways are limited. We investigated the expression of IL-6, Gp130, JAK and STAT after resistance training, and Spirulina platensis supplementation in animal muscle. Thirty-two male Sprague Dawley rats (weight: 290 ± 20 g, and 9 weeks of age) were divided into four groups: control (CO; n = 8), Spirulina platensis supplementation (SP; n = 8), resistance exercise (RE; n = 8), and Spirulina platensis + resistance exercise (SP + RE; n = 8). The resistance exercise group trained five sessions each week for eight weeks. Spirulina 200 mg kg −1 d −1 was used in the SP and SP + RE groups. Gene expression was measured by real-time PCR following the last training session. One-way ANOVA test with Tukey's post-hoc test were used for analysis of data (SPSS, version,21). Data analysis revealed that the expression of IL-6 (P = 0.001), Gp130 (P = 0.001), JAK (P = 0.0001) and STAT (P = 0.004) increased significantly in the RE group. The expression of IL-6 (P = 0.018), JAK (P = 0.001) and STAT (P = 0.001) in SP + RE group also increased significantly (P ≤ 0.05). SP showed a significant increase in Gp130 (P = 0.001) and STAT (P = 0.001). Supplementation by Spirulina platensis may enhance muscle accretion during resistance training.
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