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Role of Lipid Profile and Its Relative Ratios (Cholesterol/HDL-C, Triglyceride/HDL-C, LDL-C/HDL-C, WBC/HDL-C, and FBG/HDL-C) on Admission Predicts In-Hospital Mortality COVID-19. J Lipids 2023; 2023:6329873. [PMID: 36923284 PMCID: PMC10010876 DOI: 10.1155/2023/6329873] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 02/04/2023] [Accepted: 02/22/2023] [Indexed: 03/08/2023] Open
Abstract
Background Lipid profile and its related ratios such as total cholesterol (TC), low-density lipoprotein-cholesterol (LDL-C), triglyceride (TG), high-density lipoprotein-cholesterol (HDL-C), TG/HDL-C ratio, TC/HDL-C ratio, LDL-C/HDL-C ratio, white blood cell (WBC)/HDL-C ratio, and fasting blood glucose (FBG)/HDL-C ratio are valuable indicators that have been studied in various disorders to predict mortality. The present study was conducted with the aim of investigating the role of lipid profile ratios in predicting mortality in COVID-19 patients. Methods At the beginning of hospitalization, laboratory tests were taken from all patients (n = 300). The ability of lipid profile ratios to determine the COVID-19 severity was evaluated using receiver-operating characteristic (ROC). In addition, survival probability was determined with the average of Kaplan-Meier curves, so that the end point was death. Results In deceased patients, TG, TC, LDL-C, HDL-C, TC/HDL-C, TG/HDL-C, and LDL-C/HDL-C parameters were significantly lower than those of surviving patients, while WBC/HDL-C and FBG/HDL-C were significantly higher. TC (HR = 3.178, 95%CI = 1.064 to 9.491, P < 0.05), TG (HR = 3.276, 95%CI = 1.111 to 9.655, P < 0.05), LDL-C (HR = 3.207, 95%CI = 1.104 to 9.316, P < 0.05), and HDL-C (HR = 3.690, 95%CI = 1.290 to 10.554, P < 0.05), as well as TC/HDL-C (HR = 3.860, 95%CI = 1.289 to 11.558, P < 0.05), TG/HDL-C (HR = 3.860, 95%CI = 1.289 to 11.558, P < 0.05), LDL-C/HDL-C (HR = 3.915, 95%CI = 1.305 to 11.739, P < 0.05), WBC/HDL-C (HR = 3.232, 95%CI = 1.176 to 8.885, P < 0.05), and FBG/HDL-C ratios (HR = 4.474, 95%CI = 1.567 to 12.777, P < 0.01), were detectably related to survival. The multivariate Cox regression models showed that only FBG/HDL-C ratio (HR = 5.477, 95%CI = 1.488 to 20.153, P < 0.01) was significantly related to survival. Conclusion The results suggested that FBG/HDL-C ratio in hospital-admitted COVID-19 patients was a reliable predictor of mortality.
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Aslani MR, Sharghi A, Boskabady MH, Ghobadi H, Keyhanmanesh R, Alipour MR, Ahmadi M, Saadat S, Naghizadeh P. Altered gene expression levels of IL-17/TRAF6/MAPK/USP25 axis and pro-inflammatory cytokine levels in lung tissue of obese ovalbumin-sensitized rats. Life Sci 2022; 296:120425. [PMID: 35202642 DOI: 10.1016/j.lfs.2022.120425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/31/2022] [Accepted: 02/16/2022] [Indexed: 11/28/2022]
Abstract
AIMS The association between asthma and obesity has been shown but its accurate mechanism is unknown. In the current study, we sought to investigate the gene expression levels of IL-17/TRAF6/MAPK/USP25 axis and pro-inflammatory cytokine level (IL-6, IL-1β, and TNF-α) in obese Ovalbumin (OVA)-sensitized female and male Wistar rats lung tissue. MAIN METHODS Animals in both males and females were divided into eight groups (four groups in each sex) based on diet and OVA-sensitization: normal diet, a normal diet with OVA-sensitization, high-fat diet (HFD), and OVA-sensitization with an HFD. KEY FINDINGS In both sexes, obese OVA-sensitized rats, the methacholine concentration-response curve shifted to the left and EC50 methacholine decreased. Increased pro-inflammatory cytokines as well as elevated IL-17/TRAF6/MAPK axis genes and decreased USP25 gene expression were identified in obese OVA-sensitized groups. SIGNIFICANCE The results indicate that in obese OVA-sensitized rats, the IL-17 axis were involved in the pathogenesis of the disease and can be considered as a therapeutic target in subjects with obesity-related asthma.
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Affiliation(s)
- Mohammad Reza Aslani
- Department of Physiology, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran; Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Afshan Sharghi
- Department of Community Medicine, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Mohammad Hossein Boskabady
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Hassan Ghobadi
- Internal Medicine Department, Pulmonary Division, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Rana Keyhanmanesh
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Mahdi Ahmadi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeideh Saadat
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Physiology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Parya Naghizadeh
- Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
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Aslani MR, Amani M, Masrori N, Boskabady MH, Ebrahimi HA, Chodari L. Crocin attenuates inflammation of lung tissue in ovalbumin-sensitized mice by altering the expression of endoplasmic reticulum stress markers. Biofactors 2022; 48:204-215. [PMID: 34856021 DOI: 10.1002/biof.1809] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/15/2021] [Indexed: 12/13/2022]
Abstract
Endoplasmic reticulum (ER) stress plays a pivotal role in the pathogenesis of asthma. The present study aimed to investigate the reducing or suppressing effects of crocin in ovalbumin (OVA)-sensitized mice on ER stress markers. Mice were divided into six groups (n = 5 per group) including control, OVA-sensitized (OVA), OVA-treated crocin (OVA-Cr25, OVA-Cr50, and OVA-Cr100 mg/kg), and OVA-treated dexamethasone (1 mg/kg), (OVA-Dexa) groups. Animals 5 later groups were sensitized to OVA and the treatment groups received intraperitoneally crocin/dexamethasone in the last 5 days of the model. At the end of the study, lung tissue was evaluated for airway inflammation, caspase 12 and CHOP protein levels, and expression of ER stress markers using real-time-PCR. Sensitization with OVA significantly caused airway inflammation and induction of ER stress in mice compared to the control group based on the elevated inflammatory cells and ER stress markers in the lung tissue. Treatment with crocin and dexamethasone reduced airway inflammation and suppressed ER stress markers. Interestingly, in the OVA-Cr100 group, the suppressive effects on ER stress apoptotic markers were comparable to the OVA-Dexa group. The results suggest that crocin mediates maladaptive ER stress conditions possibly by creating adaptive ER stress status and driving protein folding correctly.
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Affiliation(s)
- Mohammad Reza Aslani
- Faculty of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Physiology, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mojtaba Amani
- Faculty of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Neghin Masrori
- Faculty of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mohammad Hossein Boskabady
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Ali Ebrahimi
- Department of Pharmaceutics, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Leila Chodari
- Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
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Miao J, He X, Hu J, Cai W. Emodin inhibits NF-κB signaling pathway to protect obese asthmatic rats from pathological damage via Visfatin. Tissue Cell 2021; 74:101713. [PMID: 34952398 DOI: 10.1016/j.tice.2021.101713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 12/30/2022]
Abstract
PURPOSE Emodin has a protective effect on asthma. Obesity is closely related to asthma. We further explored the role of Emodin in obese asthmatic rats. METHODS Ovalbumin (OVA) was used to induce asthma model, and high fat diet (HFD) was used to induce obese rat model. Body weight was measured before and after the modeling. Serum lipid levels were evaluated using commercial kits. Then, lung tissue and airway tissue of rat were separated forin vivo. Hematoxylin-eosin staining (HE) analyzed the extent of lung lesions. Quantitative reverse transcription PCR assessed the mRNA expression of Visfatin and Enzyme linked immunosorbent assay measured NF-κB protein expression in airway tissues. MTT, Brdu and Western blot detected cell viability, proliferation and NF-κB level of human bronchial epithelial cells 16HBE, respectively. RESULTS Asthma and Emodin alone had no effect on the body weight of normal rats, while HFD promoted the body weight of rats and could be reversed by Emodin. Both asthma and obesity promoted the pathological damage of rat lungs, including emphysema, lipid accumulation, edema changes, lymphoid hypertrophy and airway smooth muscle hyperplasia as well as lipid accumulation in surum, and Emodin treatment could reduce the damage. In the airway tissues of asthma and obesity models, up-regulated Visfatin mRNA and NF-κB protein were observed. In 16HBE, Emodin reversed Visfatin's role in promoting cell viability, proliferation and activating NF-κB signaling pathway. CONCLUSION Emodin inhibited NF-κB expression to relieve the pathological symptoms of obese asthmatic rats by Visfatin.
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Affiliation(s)
- Jing Miao
- Department of Endocrinology, The Second Clinical Medical College of Zhejiang Chinese Medical University, The Second Affiliated Hospital of Zhejiang Chinese Medical University, China
| | - Xiaoming He
- Department of Endocrinology, The Second Clinical Medical College of Zhejiang Chinese Medical University, The Second Affiliated Hospital of Zhejiang Chinese Medical University, China
| | - Jiang Hu
- Department of Endocrinology, The Second Clinical Medical College of Zhejiang Chinese Medical University, The Second Affiliated Hospital of Zhejiang Chinese Medical University, China
| | - Wanru Cai
- Department of Respiratory and Critical Care Medicine, The Second Clinical Medical College of Zhejiang Chinese Medical University, The Second Affiliated Hospital of Zhejiang Chinese Medical University, China.
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Ghobadi H, Mokhtari S, Aslani MR. Serum levels of visfatin, sirtuin-1, and interleukin-6 in stable and acute exacerbation of chronic obstructive pulmonary disease. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2021; 26:17. [PMID: 34084196 PMCID: PMC8106404 DOI: 10.4103/jrms.jrms_626_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 02/18/2020] [Accepted: 09/16/2020] [Indexed: 01/04/2023]
Abstract
Background: Visfatin is an adipokine that increased under inflammatory conditions. Moreover, sirtuin-1 possesses regulatory effects on inflammatory factors. In this study, we aimed to evaluate the serum level of visfatin in patients with stable and acute exacerbation of chronic obstructive pulmonary disease (AE-COPD). Materials and Methods: In a case–control study, thirty patients with stable COPD (S-COPD), thirty patients with AE-COPD, and thirty control subjects were enrolled. Pulmonary function tests and blood sampling were performed on all participants. Serum visfatin, sirtuin-1, and interleukin (IL)-6 levels were measured using the sandwich ELISA method and assessed their association with study parameters. Results: The findings of the current study revealed that serum levels of visfatin in AE-COPD patients were higher than those of healthy controls and S-COPD (for healthy control; standardized mean difference [SMD] = 2.63, 95% confidence interval [CI] =1.31–2.83, P < 0.001, and for S-COPD; SMD = 1.53, 95% CI = 0.21–2.85, P < 0.05). On the other hand, the serum levels of sirtuin-1 were higher in healthy controls compared to the S-COPD and AE-COPD patients (for S-COPD; SMD = 1.56, 95% CI = 0.018–3.11, P < 0.05, for AE-COPD; SMD = 1.50, 95% CI = 0.048–3.04, P < 0.05). Conclusion: Elevated visfatin and IL-6 levels demonstrated their pro-inflammatory effects in patients with COPD, especially in AE-COPD patients. In addition, the negative association found between serum visfatin and sirtuin-1 levels suggested the pathophysiologic and therapeutic roles of these factors in COPD patients.
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Affiliation(s)
- Hassan Ghobadi
- Department of Internal Medicine, Division of Pulmonary, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Sara Mokhtari
- Lung Inflammatory Diseases Research Center, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mohammad Reza Aslani
- Lung Inflammatory Diseases Research Center, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Avesta L, Aslani MR, Parham P, Sadeghieh-Ahari S, Ghobadi H. The relationships between serum heart-type fatty acid-binding protein and right ventricular echocardiographic indices in chronic obstructive pulmonary disease. THE CLINICAL RESPIRATORY JOURNAL 2021; 15:628-636. [PMID: 33434354 DOI: 10.1111/crj.13328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/04/2021] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Heart-type Fatty Acid-Binding Protein (H-FABP) has been used in the diagnosis of myocardial damage. In this study, we assessed the relationships between serum H-FABP as a marker of cardiac injury and right ventricle (RV) echocardiographic indices in patients with stable COPD. MATERIALS AND METHODS In this case-control study, 84 participants were investigated (50 COPD patients and 34 healthy subjects). After obtaining consent, 3 mL of fasting whole blood sample was collected from each of the participants to test their serum H-FABP. Echocardiography was performed on all participants by cardiologists. RESULTS Serum H-FABP was found to be significantly correlated with smoking history (P < 0.01), Systolic Pulmonary Artery Pressure (S-PAP), RV Wall Thickness (RV-WT), and Tricuspid annulus posts systolic excursion (TAPSE) (P < 0.01 for all). RV Basal Diameter (RV-BD), RV Mid Diameter (RV-MD), and Fractional area change percentage (FAC%) were not observed to have any correlation with serum H-FABP. Also, the comparative analysis showed statistically significant differences between mean RV-MD (P < 0.001), RV-BD, FAC%, S-PAP, RV-WT (P < 0.001), and TAPSE (P < 0.05) of patients at different GOLD stages. There was a significant correlation between the adjusted serum level of H-FABP and the airflow limitation based on FEV1 (P < 0.001). CONCLUSION The correlation between serum H-FABP and RV echocardiographic indices such as S-PAP, RV-WT, and TAPSE, can be related to RV function in COPD patients. Moreover, RV echocardiographic indices are significantly correlated with the severity of COPD as classified in various GOLD stages.
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Affiliation(s)
- Leili Avesta
- Emam Khomeini Hospital, Ardabil University of Medical Sciences, Ardabil, Iran
| | | | - Parastoo Parham
- Emam Khomeini Hospital, Ardabil University of Medical Sciences, Ardabil, Iran
| | | | - Hassan Ghobadi
- Emam Khomeini Hospital, Ardabil University of Medical Sciences, Ardabil, Iran
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Aslani MR, Ghazaei Z, Ghobadi H. Correlation of serum fatty acid binding protein-4 and interleukin-6 with airflow limitation and quality of life in stable and acute exacerbation of COPD. Turk J Med Sci 2020; 50:337-345. [PMID: 31905499 PMCID: PMC7164746 DOI: 10.3906/sag-1909-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/02/2020] [Indexed: 01/05/2023] Open
Abstract
Background/aim The serum fatty acid binding protein 4 (FABP-4) level increases in chronic inflammatory diseases. The present study aimed to examine serum FABP-4 and interleukin (IL)-6 levels in patients with stable and acute exacerbation of chronic obstructive pulmonary disease (COPD) and the correlation of these markers with airflow limitation. Materials and methodsS We measured serum FABP-4 and IL-6 levels in 60 COPD patients [30 stable COPD (SCOPD), and 30 acute exacerbation of COPD (AECOPD)], and 30 healthy subjects and compared them with airflow limitation according to the COPD stage in the Global Initiative for Chronic Obstructive Pulmonary Disease (GOLD) criteria, peripheral O2 saturation (SpO2), and COPD Assessment Test (CAT) score. We also tested the association between serum FABP-4 levels and some characteristics of study parameters. Results Both serum FABP-4 and IL-6 levels increased with increasing severity of GOLD grades in SCOPD (P < 0.01 for both) and AECOPD groups (P < 0.001 and P < 0.01, respectively). It also increased in patients with AECOPD group compared with SCOPD group in GOLD grades I-II (P < 0.01) and GOLD grades III-IV (P < 0.05). In addition, there was a significant positive correlation between serum FABP-4 level with IL-6, CAT score, and smoking history and inversely with FEV1 and SpO2. Conclusion The study revealed that serum FABP-4 level was elevated with increasing GOLD grades in COPD patients, markedly in acute exacerbation phase. The increase was associated with elevated serum levels of IL-6 and severity of hypoxia. Thus, it seems that FABP-4 may be involved in the pathogenesis of COPD.
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Affiliation(s)
- Mohammad Reza Aslani
- Lung Inflammatory Diseases Research Centre, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran,Neurogenic Inflammation Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zeynab Ghazaei
- Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Hassan Ghobadi
- Internal Medicine Department (Pulmonary Division), Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
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Aslani MR, Ghobadi H, Panahpour H, Ahmadi M, Khaksar M, Heidarzadeh M. Modification of lung endoplasmic reticulum genes expression and NF-kB protein levels in obese ovalbumin-sensitized male and female rats. Life Sci 2020; 247:117446. [PMID: 32081662 DOI: 10.1016/j.lfs.2020.117446] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/11/2020] [Accepted: 02/17/2020] [Indexed: 12/21/2022]
Abstract
AIMS Previous studies showed a close relationship between obesity and asthma. In this study, we investigated the expression of endoplasmic reticulum (ER) stress genes in the lung tissue of obese ovalbumin (OVA)-sensitized male and female rats. MAIN METHODS The rats were divided into eight groups (n = 5 per group) as follows: female and male rats fed with normal diet (FND and MND, respectively), female and male OVA-sensitized rats fed with normal diet (F-OND and M-OND, respectively), female and male rats fed with high-fat diet (F-HFD and M-HFD, respectively), female and male OVA-sensitized rats fed with high-fat diet (F-OHFD and M-OHFD, respectively). All rats were fed with a high-fat diet or standard pelts for 8 weeks, and for another 4 weeks, they were sensitized by OVA or saline. At the end of the study, lung tissue NF-kB protein level was assessed, and ER stress markers genes expression was determined by Real Time-PCR. KEY FINDING OVA-sensitization and diet-induced obesity caused the curve of methacholine concentration-response to shift to the left. In addition, the results indicated that the EC50 (the effective concentration of methacholine generating 50% of peak response) in F-OHFD rats was statistically lower than that of the M-OHFD group (p < 0.05). Moreover, the results showed that diet-induced obesity increased the expression of ATF4, ATF6, GRP78, XBP-1, and CHOP as well as the protein level of NF-kB in this experimental model of asthma, markedly in the F-OHFD group. SIGNIFICANCE The results suggest that ER stress may be involved in the pathogenesis of asthma observed in obese OVA-sensitized rats, especially in the female animals.
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Affiliation(s)
- Mohammad Reza Aslani
- Lung Inflammatory Diseases Research Center, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran; Neurogenetic Inflammation Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Hassan Ghobadi
- Department of Internal Medicine (Pulmonary Division), School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Hamdollah Panahpour
- Physiology Department, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Mahdi Ahmadi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Majid Khaksar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Morteza Heidarzadeh
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Akhavanakbari G, Babapour B, Alipour MR, Keyhanmanesh R, Ahmadi M, Aslani MR. Effect of high fat diet on NF-кB microRNA146a negative feedback loop in ovalbumin-sensitized rats. Biofactors 2019; 45:75-84. [PMID: 30521085 DOI: 10.1002/biof.1466] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 08/23/2018] [Accepted: 09/10/2018] [Indexed: 02/01/2023]
Abstract
The present study aimed to investigate the role of microRNA-146a and its adapter proteins [interleukin-1 receptor-associated kinase 1 (IRAK1) and tumor necrosis factor (TNF) receptor-associated factor 6 (TRAF6)] in the pathogenesis of ovalbumin (OVA)-sensitized rats in association with the diet-induced obesity condition. Twenty male Wistar rats were divided into four groups: control with normal diet (ND), OVA-sensitized with normal diet (S + ND), high-fat diet (HFD), and OVA-sensitized with high-fat diet (S + HFD). All the animals were fed for 8 weeks with standard pelts or high-fat diet, and were then sensitized and challenged with OVA or saline for another 4 weeks. The tracheal responsiveness to methacholine, serum protein levels, and lipid profile levels was measured by the ELISA method. Moreover, the gene expression level of microRNA-146a (miR-146a) was measured in the lung tissue of the rats using the real-time PCR method. Maximum response to methacholin increased in the S + HFD group in compared with ND, S + ND, and HFD groups (P < 0.05 to P < 0.001). Moreover, in the S + HFD group the mRNA expression levels of miRNA-146a increased in the lung tissue (P < 0.001). In addition, the protein analysis results showed that IRAK1, TRAF6, NF-kB, and IL-1β protein levels were high in the S + HFD group compared to the ND and HFD groups; however, in compared with the S + ND group, only the IL-1β protein level was higher in the S + HFD group (P < 0.05). These results suggest that a defect in the NF-kB-miR-146a negative feedback loop may be involved in the pathogenesis of obesity associated with OVA-sensitized condition. © 2018 BioFactors, 45(1):75-84, 2019.
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Affiliation(s)
- Godrat Akhavanakbari
- Department of Anesthesiology, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Behzad Babapour
- Department of Cardiology, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | | | - Rana Keyhanmanesh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Ahmadi
- Faculty of Medicine, Department of Physiology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Aslani
- Lung Inflammatory Diseases Research Center, Department of Physiology, Ardabil University of Medical Sciences, Ardabil, Iran
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