Shole Daneshvar-ghahfarokhi; Amir Rahnama; Vahid Mohammadi-Shahrokhi
Abstract
Background: One of the inflammatory diseases of the respiratory system is asthma. Teucrium polium (TP) has anti-inflammatory and anti-allergic properties and its anti-asthmatic effects have not been investigated yet. RORγt is an inflammatory transcription factor for Th17 differentiation. By secreting ...
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Background: One of the inflammatory diseases of the respiratory system is asthma. Teucrium polium (TP) has anti-inflammatory and anti-allergic properties and its anti-asthmatic effects have not been investigated yet. RORγt is an inflammatory transcription factor for Th17 differentiation. By secreting IL-17, Th17 leads to neutrophilic inflammation in the lungs. As an anti-inflammatory cytokine, IL-10 reduces the dissemination of inflammatory elements in the airways.Objective: To evaluate the effect of TP extract in asthma treatment.Methods: Thirty female Balb/c mice were distributed into 5 groups (n=6) including the control, treated with ovalbumin (OVA), and OVA+ various doses of TP (50, 150, and 300 mg/kg). All groups except the control group were sensitized to OVA solution on days 0, 7, and 14 by subcutaneous injection. The challenge was performed on days 18 to 21 by the inhalation of 1% OVA and the treatment was done with TP extract in the treatment groups, half an hour before the challenge. On day 22, the serum and spleen samples were collected to determine IL-10 serum levels and RORγt gene expression, respectively.Results: In the treatment groups, the expression of RORγt significantly decreased when using OVA+ Tp extract (150 mg/kg and 300 mg/kg), and IL-10 serum levels significantly increased when using OVA+ TP extract (150 mg/kg) compared with the OVA group.Conclusion: It is possible that TP extract can be effective in improving asthma by reducing inflammation.
Al- Shaimaa Mohsen Sadek; Alya Mohammad Mashaal; Rasha Aly Ahmed El Sayed
German Reynaldo Jiménez-Gastélum; Arely Monserrant Espinoza-Ortega; Rosalío Ramos-Payán; Maribel Aguilar-Medina; Jorge López-Gutiérrez; Carlos Villegas-Mercado; Luis Antonio Ochoa-Ramirez; Horacio Rendón-Aguilar; Juan Fidel Osuna-Ramos; Juan José Ríos-Tostado; Jesús Salvador Velarde-Félix
Abstract
Background: According to the World Health Organization, Mexico presents one of the highest mortality rates due to coronavirus disease 2019 (COVID-19). The "cytokine storm" phenomenon has been proposed as a pathological hallmark of severe COVID-19. Objective: To determine the association of serum cytokine ...
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Background: According to the World Health Organization, Mexico presents one of the highest mortality rates due to coronavirus disease 2019 (COVID-19). The "cytokine storm" phenomenon has been proposed as a pathological hallmark of severe COVID-19. Objective: To determine the association of serum cytokine levels with COVID-19 severity. Methods: We studied the cytokines IL-2, IL-4, IL-6, IL-10, TNF-α, and the IFN-γ serum levels through flow cytometry in 56 COVID-19 patients (24 critical and 32 non-critical) from Northwest Mexico. Results: We observed a significant increase in the IL-6 and the IL-10 levels in the sera of critical patients. These cytokines were also associated with mechanical ventilation necessity and death, IL-6 showing AUC values above 0.7 for both variables; and correlated with Na+, creatinine, and platelet levels. On the other hand, no association was found between IL-2, IL-4, TNF-α, and IFN-γ with tested variables. Conclusion: Our results corroborate previous observations regarding IL-6 and IL-10 involvement in the severity of COVID-19.
Jingjing Guan; Zhongyong Wang; Xiaoyuan Liu; Yujie Jiang; Qiuqi Gao; Qing Wu; Hong Lu; Lianfeng Wu; Zhuo Zhang; Xiangyang Lin; Jingjing Qian
Abstract
Background: Given the high mortality of bacterial bloodstream infections (BSI), blood culture results do not meet clinical needs timely due to being time-consuming and having low positive rate. Whether we can identify the severity and type of bacterial infections by cytokines is a controversial issue. ...
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Background: Given the high mortality of bacterial bloodstream infections (BSI), blood culture results do not meet clinical needs timely due to being time-consuming and having low positive rate. Whether we can identify the severity and type of bacterial infections by cytokines is a controversial issue. Objective: To investigate the dynamic change of cytokines in BSI. Methods: 55 patients with Gram-positive (GP) BSI, 64 patients with Gram-negative (GN) BSI and 52 healthy controls were enrolled. We quantitatively detected the cytokines interleukin (IL)-2, IL-4, IL-6, IL-10, tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ) by flow cytometry in the sera. The levels of procalcitonin, C-reactive protein, leukocytes and neutrophils were also detected simultaneously. Results: There were significantly up-regulated IL-6 and IL-10 expression in BSI patients, particularly in the GN-BSI, for instance Escherichia coli and Klebsiella pneumoniae infections; following the treatment, IL-6 and IL-10 decreased by 10-23 and 4-27 times, respectively. Additionally, IL-2, TNF-α and IFN-γ expression increased slightly in BSI patients and IFN-γ expression declined as GN-BSI progressed. Conclusion: IL-6 and IL-10 are closely associated with the severity and treatment efficacy of BSI, and can help to distinguish between GP-BSI and GN-BSI at an early stage.
Maimun Zulhaidah Arthamin; Anis Sulalah; Resvina -; Chomsin Sulistya Widodo; Agustina Tri Endharti; Edi Widjajanto; Tedy Juliandhy
Abstract
Background: Although there have been many studies investigating the effects of electromagnetic fields on humans cells and tissues, the effects of radiofrequency electromagnetic fields exposure on the cells of the immune system are still controversial. Objective: To investigate the effects of 1800 MHz ...
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Background: Although there have been many studies investigating the effects of electromagnetic fields on humans cells and tissues, the effects of radiofrequency electromagnetic fields exposure on the cells of the immune system are still controversial. Objective: To investigate the effects of 1800 MHz RF-EMF exposure on peripheral blood mononuclear cells by measuring T helper cells count and the cytokine profile under different conditions of durations and distances. Methods: The peripheral blood mononuclear cells (PBMCs) from healthy human subjects were exposed to 1800 MHz RF-EMF, with durations of 15, 30, 45, and 60 minutes and distances of 5 and 25 cm. The effects of RFEMF exposure on the number of CD4+ T cells, and the expression of IL-2,IL-10, and IL-17a after 48 hours of culture were evaluated using flow cytometry. Results: Our findings indicated that closer distance and longer exposure inducedlower number of CD4+ T cells. Similarly the percentagesof IL-2, IL-10 and IL-17a expressing CD4+ T cells weredecreased significantly. The number of IL-2 expressing CD4+T cells wasincreased significantly as the duration of exposure was increased, but the number was decreased after 60 minutes exposure when compared with control group with no exposure. Conclusions: Exposure to RF-EMF for 60 minutes at 5 cm distance causes a significant reduction in the number of CD4+ T cells, IL-2, IL-10 and IL-17a expressing T cells.
Mohammad Reza Sobhan; Mahmood Farshchian; Ali Hoseinzadeh; Hamid Reza Ghasemibasir; Ghasem Solgi
Volume 13, Issue 4 , December 2016, , Pages 317-323
Abstract
Background: As a chronic inflammatory condition, psoriasis results from an interaction
between genetic and immunologic factors in a predisposing environment. In spite of
compelling evidence for the role of T cells and cytokines in psoriasis, interleukin (IL)-
10 and IL-22 have not been sufficiently ...
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Background: As a chronic inflammatory condition, psoriasis results from an interaction
between genetic and immunologic factors in a predisposing environment. In spite of
compelling evidence for the role of T cells and cytokines in psoriasis, interleukin (IL)-
10 and IL-22 have not been sufficiently investigated. Objective: To assess the serum
levels of IL-10 and IL-22 in patients with psoriasis compared to healthy controls.
Methods: A total of 28 patients with psoriasis were compared with 28 age and sexmatched
healthy subjects. Psoriasis Area and Severity Index (PASI) criteria were used
to measure the severity of the disease. Serum levels of IL-10 and IL-22 were measured
in both groups and compared. Results: The mean serum level of IL-10 was 89.5±18.7 in
patients compared to 117.2±23.4 pg/ml in the controls (p=0.36). Also, serum level of
IL-22 was 284.1±49.7 in patients versus 425.4±82.8 pg/ml in control group (p=0.17).
There was a significant direct correlation between levels of IL-10 and IL-22 in patients
group (p=0.0005). The clinical severity of psoriasis was significantly correlated with
high levels of IL-22 (p<0.0001).Conclusions: The decreased levels of IL-10 in psoriatic
patients and direct correlation between higher levels of IL-22 and disease severity
support the clinical implication of both cytokines in psoriasis.
Mohammad Motamedifar; Jamal Sarvari; Azin Ebrahimpour; Amir Emami
Volume 12, Issue 1 , March 2015, , Pages 27-34
Abstract
Background: Herpes simplex viruses (HSV) are human pathogens that establish lytic and latent infections. Reactivation from latency occurs intermittently, which represents a life-long source for recurrent infection. The role of immune factors in the control of recurrent symptomatic HSV lesions is complex ...
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Background: Herpes simplex viruses (HSV) are human pathogens that establish lytic and latent infections. Reactivation from latency occurs intermittently, which represents a life-long source for recurrent infection. The role of immune factors in the control of recurrent symptomatic HSV lesions is complex and the exact role of cytokines remains unclear. Objective: To assess the levels of tumor necrosis factor-α (TNF-α) and interleukin-10 (IL-10) along with anti-herpetic IgG and IgM, in the symptomatic reactivation of HSV infection. Methods: Thirty-six patients with recurrent symptomatic herpes infection were selected as the study group and thirty-two healthy individuals with no history of symptomatic labial herpes infection enrolled as the control group. Skin swabs were obtained from lip and skin lesions for viral culture. Confirmation of HSV cytopathic effect was carried out using PCR assay. The levels of TNF-α, IL-10, IgG and IgM were measured using ELISA. Results: The level of TNF-α was significantly lower in individuals with recurrent symptomatic herpes infection in comparison with the controls (p=0.04). Also a significant elevation was observed in the levels of specific IgG in patients compared to controls (p<0.05). Conclusion: The decreased level of TNF-α and increased levels of IgG in individuals with a history of symptomatic reactivation of HSV infection is suggestive of a probable shift in favor of the Th2 immune response.
Vahid Shaygannejad; Saeed Montazeri; Azam Jamshidian; Soheil Tahani; Marjan Gharagozloo; Fereshteh Ashtari; Sahar Vesal; Seyed Javad Hasheminia; Leila Dehghani
Volume 11, Issue 2 , June 2014, , Pages 134-138
Abstract
Background: Midkine (MK) is a heparin-binding growth factor with promoting effects in inflammatory responses through enhancing leukocytes migration. Objective: To study the correlation between MK serum levels and concentration of inflammatory cytokines in Multiple Sclerosis (MS) patients. Methods: We ...
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Background: Midkine (MK) is a heparin-binding growth factor with promoting effects in inflammatory responses through enhancing leukocytes migration. Objective: To study the correlation between MK serum levels and concentration of inflammatory cytokines in Multiple Sclerosis (MS) patients. Methods: We evaluated the MK level and its relationship with inflammatory cytokines (IL-17 and IL-23) and antiinflammatory ones (IL-10 and TGF-β) in multiple sclerosis (MS) patients. The serum concentrations of MK and cytokines were assessed by ELISA in 32 MS patients in comparison with 32 healthy subjects. Results: Our data showed that the MK concentration in MS patients is lower than healthy controls (341.15 ± 40.71 Pg/ml vs. 620.15 ± 98.61 Pg/ml, respectively, p=0.015). We also observed a significant decrease in IL-10, IL-23, and TGF-β cytokine levels in MS patients. There was a significant correlation between MK and IL-23 concentrations in our study (r = +0.829, p≤0.001). Conclusion: These results confirm a role for MK in inflammatory reactions in MS.
Mohammad Ali Rezaee; Yousef Motaharinia; Werya Hosseini; Ali Jalili; Ahmad Rashidi; Bita Mosavi; Ghasem Zamini; Mohammad Reza Rahmani
Volume 9, Issue 2 , June 2012, , Pages 109-118
Abstract
Background: Malassezia furfur is alipophilic yeast that causes skin disease. Objective: To evaluate the level of IL-10, IFN-γ and IL-12P70 in co-incubation of M. furfur grown on different forms of natural oils with PBMCs of healthy individuals. Methods: PBMCs were obtained from blood samples of ...
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Background: Malassezia furfur is alipophilic yeast that causes skin disease. Objective: To evaluate the level of IL-10, IFN-γ and IL-12P70 in co-incubation of M. furfur grown on different forms of natural oils with PBMCs of healthy individuals. Methods: PBMCs were obtained from blood samples of normal volunteers. M. furfur was cultured in different culture media containing almond oil, fish oil, walnut oil, full-fat milk, and a fat-free medium; and the yeasts grown were harvested and used for co-incubation with PBMCs in vitro. The IFN-γ, IL-10, and IL-12P70 levels were measured at different time intervals using ELISA methods. Results: Generally, IFN-γ and IL-10 levels in the coincubation of yeasts with walnut oil group (WOG) and fish oil group (FOG) were higher than those in the almond oil group (AOG) and full-fat milk group (FFMG). Although the IL-12P70 was higher in groups such as AOG, FOG, and WOG; the increase was not statistically significant. Conclusion: The results demonstrated that the type of fat used by M. furfur in the culture media can influence the immune response and increases IFN-γ and IL-10 levels in an early time point of the culture system.
Keyvan AMirshahrokhi; Mahmoud Ghazi-khansari; Ahmad Mohammadi-Farani; Golnar Karimian
Volume 7, Issue 4 , December 2010, , Pages 247-251
Abstract
Background: The renin-angiotensin system has an important role in hepatic inflammation and fibrosis. Renin-angiotensin system blockade by angiotensinconverting enzyme (ACE) inhibitors provides some protective effects against hepatic fibrogenesis. Captopril as an ACE inhibitor can decrease inflammatory ...
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Background: The renin-angiotensin system has an important role in hepatic inflammation and fibrosis. Renin-angiotensin system blockade by angiotensinconverting enzyme (ACE) inhibitors provides some protective effects against hepatic fibrogenesis. Captopril as an ACE inhibitor can decrease inflammatory mediators and attenuate hepatic fibrosis in the livers of bile duct ligated (BDL) rats. Objective: The present study was conducted to investigate the effects of captopril on cytokine production in hepatic fibrosis induced by a bile duct ligation model in rats. Methods: Male rats were divided into four groups including; control, sham operated, BDL, and BDL plus captopril (10 mg/kg/day, orally). After 28 days of treatment, the livers were removed for cytokine analysis. Hepatic interleukin (IL)-10 and tumor necrosis factor (TNF)-α levels were measured. Results: Captopril treatment decreased the hepatic content of the proinflammatory cytokine TNF-α and increased the anti-inflammatory cytokine IL-10. Conclusion: the present study suggests that the protective effect of captopril on hepatic fibrosis is likely to be mediated by cytokine production.
Ali Shams Shahemabadi; Ahmad Zavaran Hosseini; Shapour Shaghasempour; Mohammad Reza Masjedi; Majid Rayani; Majid Shams; Nasrin Esphandyari; Majid Pouramiri
Volume 7, Issue 1 , March 2010, , Pages 57-63
Abstract
Background: Mycobacterium tuberculosis lipid antigens take part in pathogenicity of the bacterium but the response of monocytes/macrophages to these antigens in tubercu-losis is not well known. Objective: The aim of current investigation was to study the M. tuberculosis lipid antigens in tuberculosis ...
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Background: Mycobacterium tuberculosis lipid antigens take part in pathogenicity of the bacterium but the response of monocytes/macrophages to these antigens in tubercu-losis is not well known. Objective: The aim of current investigation was to study the M. tuberculosis lipid antigens in tuberculosis pathogenesis. Methods: In the present study M. tuberculosis lipid antigens were extracted. Monocytes and macrophages from mul-tidrug-resistant tuberculosis (MDR-TB), TB patients, asymptomatic healthy individuals with positive tuberculin skin test positive and healthy individuals with negative tubercu-lin skin test were collected using magnetic cell sorting. The cells were stimulated by M. tuberculosis total lipid antigens and IL-12 and IL-10 in their supernatants were meas-ured by enzyme-linked immunosorbent assay. Results: The IL-12 production by mono-cytes in response to M. tuberculosis total sonicate antigens in the MDR-TB patients did not show a considerable difference with the PPD positive healthy subjects, whereas in the active TB patients, IL-12 levels significantly decreased (p<0.05). IL-10 production by monocytes in TB patients in response to total lipid antigens showed a significant in-crease in comparison to MDR-TB patients and healthy individuals. Conclusion: In the MDR-TB patients, IL-10 and IL-12 production by monocytes in response to M. tubercu-losis lipid antigens are similar to the healthy subjects.
Hossein Abdolrahim-Zadeh; Niloufar Hakkakian; Reza Asadollahi; Behrouz Gharesifard; Jamal Sarvari; Eskandar Kamali-Sarvestani; Abdolrasoul Talei
Volume 2, Issue 3 , September 2005, , Pages 158-165
Abstract
Background: IL-10 is an anti-inflammatory cytokine which is involved in tumorigenesis. Over production of IL-10 and elevated number of IL-10 generating mononuclear cells in breast tumor tissue has already been shown. Objective: To determine the association of IL-10 promoter polymorphisms with increased ...
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Background: IL-10 is an anti-inflammatory cytokine which is involved in tumorigenesis. Over production of IL-10 and elevated number of IL-10 generating mononuclear cells in breast tumor tissue has already been shown. Objective: To determine the association of IL-10 promoter polymorphisms with increased risk of breast cancer and its association with breast cancer prognostic factors. Methods: Peripheral blood samples from 275 female breast cancer patients and 320 cancer free controls were used to detect three single nucleotide polymorphisms in IL-10 promoter region ( -1082, -819, -592 ) by PCR method. Results: The frequency of genotypes and alleles of three mentioned regions of IL-10 promoter and their haplotypes (GCC, ATA, and ACC) showed no statistically significant difference between patients and controls. In the case of prognostic factors, progesterone receptor (PR) status exhibited significant relation with -1082 genotypes (P=0.03) and haplotypes (P=0.02). -1082 AA genotype was associated with negative PR expression whereas AG and GG genotypes of this site were positively associated with PR expression. Similarly GCC haplotype correlated with positive PR expression and ATA and ACC with negative PR expression. Conclusion: The data of this study showed that IL-10 promoter gene polymorphisms may not be considered as one of the risk factors for breast cancer in Iranian patients.
