Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 378 395 EN Wei Luo Department of Respiratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China. Chun-tao Liu Department of Respiratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China. Qiu-hong Yang Department of Respiratory Medicine, the 7th People's Hospital, Chengdu, Sichuan 610041, PR China. Qi Yu Department of Electroencephalogram, The People's Hospital, Leshan, Sichuan 614000, PR China. Tao Wang Laboratory of Pulmonary Disease, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China. 2015 10 16 Rho-kinase is an effector molecule of RhoA, a monomeric GTP-binding protein, and causes Ca2+ sensitization through inactivation of myosin phosphatase. The major physiological functions of Rho/Rho-kinase cascade include contraction, proliferation and migration in cells.There are some excellent reviews about Rho/Rho-kinase signal pathway, most of which focus on the specific proteins of the pathway including some upstream regulators and its final effects. But few articles cover signal pathways that can activate the signaling concerned, and/or the pathways that Rho/Rho-kinase can exactly activate. This review hence highlights the two questions after a profound survey of published literatures. Rho/Rho-kinase can exert positive feedback with just another kinase/signal transducers and activator of transcription, receptor tyrosine kinase signal pathways, even reactive oxygen species, which seem to comprise certain signal loops. The authors also presume, accordingly, that the positive feedback suggests a possible reason for exacerbation of some kind of inflammatory diseases including asthma, rheumatoid arthritis, multiple sclerosis, atherosclerosis, etc. This essay, therefore, provides a new angle of view for the therapy of these kinds of diseases. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/429 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/429/408

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 396 403 EN Pedro Ángel Latorre-Román Department of Didactic of Corporal Expression, University of Jaen, Jaen, Spain. Ana Vanesa Navarro-Martínez Department of Didactic of Corporal Expression, University of Jaen, Jaen, Spain. Alfonso Mañas-Bastidas Department of Sports Sciences, University of Granada, Granada, Spain. Felipe García-Pinillos Department of Didactic of Corporal Expression, University of Jaen, Jaen, Spain. 2015 10 16 The aim of this study was to demonstrate that handgrip strength test can discriminate the presence/absence of asthma and between intermittent and moderate persistent asthma in children. 140 children (70 healthy and 70 with asthma) completed the Pediatric Asthma Quality of Life Questionnaire (PAQLQ) and performed the handgrip strength test. Forty-eight hours later, subjects performed spirometry. The results showed Handgrip strength was significantly lower (p<0.001) in children with asthma compared with healthy ones. There were also significant differences (p= 0.024) according to the severity of the disease; children with moderate persistent asthma performed worse than children with intermittent asthma. Binary logistic regression analysis and ROC curve analysis revealed that the result in handgrip strength test was a predictive factor for asthma (cut-off at 16.84 kg) and for severity of pathology (cut-off at 15.06 kg). Handgrip strength was reduced in children with asthma. Handgrip strength was positively associated with lung capacity and quality of life. The fact that the handgrip strength test was able to discriminate between presence/absence of asthma and between intermittent and moderate persistent asthma in children suggested that this test could be used as a complementary tool in the monitoring of asthma in daily clinical practice. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/427 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/427/409

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 404 411 EN Mohammad Kazzem Gheybi The Persian Gulf Nuclear Medicine Research Centre, Bushehr University of Medical Sciences, Bushehr, Iran. Ali Movahed Movahed Department of Biochemistry, Bushehr University of Medical Sciences, Bushehr, Iran. Reyhaneh Dehdari The Persian Gulf Nuclear Medicine Research Centre, Bushehr University of Medical Sciences, Bushehr, Iran. Shahram Amiri Department of Immunology, Asthma and Allergy, The Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran. Hassan Ali Khazaei Research Center for Cellular and Molecular, Department of Immunology and Hematology, Zahedan Medical Sciences University, Zahedan, Iran. Mostafa Gooya Department of Immunology, Asthma and Allergy, The Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran. Fereshteh Dehbashi The Persian Gulf Nuclear Medicine Research Centre, Bushehr University of Medical Sciences, Bushehr, Iran. Atena Fatemi Department of Immunology, Asthma and Allergy, The Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran. Neda Sovid The Persian Gulf Nuclear Medicine Research Centre, Bushehr University of Medical Sciences, Bushehr, Iran. Gholamreza Hajiani Bushehr Blood Transfusion Organization (BBTO), Bushehr, Iran. Rahim Tahmasebi Department of Biostatistics, School of Public Health, Bushehr University of Medical Sciences, Bushehr, Iran. Sina Dobaraderan Department of Immunology, Asthma and Allergy, The Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran. Majid Assadi The Persian Gulf Nuclear Medicine Research Centre, Bushehr University of Medical Sciences, Bushehr, Iran. Shokrollah Farrokhi The Persian Gulf Nuclear Medicine Research Centre, Bushehr University of Medical Sciences Bushehr, Iran AND Department of Immunology, Asthma and Allergy, The Persian Gulf Tropical Medicine Research Center, Bushehr, Iran. 2015 10 16 Concerns have been raised about the adverse impact of dusty air pollution (DAP) on human health. The aim of this study was to find the association between dusty air pollution based on air quality index (AQI) and the risk of allergic diseases in southwestern provinces of Iran, with assessing cytokine profiles and lymphocyte immunophenotypes.In this case control study 148 individuals participated. The sampling was done in hazardous condition (AQI>300) as the case and clean air (AQI<50) as the control. We measured cytokine production by using ELISA method and phenotypes of T-lymphocytes (CD4+ and CD8+), CD19+ B-lymphocytes, CD25+, CD4+ CD25+ cells by FACSort flow cytometer.The mean serum level of IL-4 (33.4 ± 2.9 vs 0.85 ± 0.65 pg/dl) and IL-13 (15.1 ± 4.4 vs. 0.12 ± 0.7 pg/dl) in the subjects exposed to ambient DAP was increased significantly compared to the individuals in the clean air condition. Also, CD19+ B-lymphocytes (12.6 ± 4.9 vs 8.9 ± 3.2%) and CD4+ CD25+ cell count (13.6 ± 4.6 vs 7.7 ± 3.8%) in peripheral blood were increased significantly in subjects exposed to ambient DAP compared with the controls.The result of our study suggested that ambient DAP affected immune system in a way that might lead to allergic diseases in the population. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/428 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/428/410

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 412 419 EN Zhipeng Li Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. Hui Wang Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. Lisi Liu Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. 2015 10 16 Interleukin (IL)-25, a cytokine of IL-17 family, can activate p38 Mitogen-Activated Protein kinases(MAPK) and Nuclear Factor(NF)-κB pathways to propagate Th2 responses. The allergic rhinitis mouse model was established by stimulating BALB/c mouse with ovalbumin (OVA). Then we detected expression of IL-25 and downstream p38MAPK and NF-κB. The expression of IL-25, p38MAPK and NF-κB were detected in the OVA-induced allergic rhinitis mouse model. The allergic parameters, such as allergic symptoms, serum OVA-specific immunoglobulin E (IgE) levels and eosinophil infiltration in the nasal mucosa were compared between OVA group and control group. OVA-induced mice displayed significantly higher allergic responses compared with the saline control group. OVA induced mice demonstrated more allergic symptoms, higher serum OVA-specific IgE levels and eosinophil infiltrations. The increased expression of IL-25, p38MAPK and NF-κB immunoreactivity were detected in epidermal cells in the OVA group. The mRNA measurement of IL-25, p38MAPK and NF-κB showed the same result. IL-25 enhances the OVA-induced allergic rhinitis by activating p38MAPK and NF-κB pathways. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/426 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/426/411

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 420 427 EN Changbiao Chen Department of Respiratory, Affiliated Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030 AND Department of Respiratory, Hannan District People's Hospital of Wuhan, Wuhan 430030, China. Ran Wang Department of Respiratory, The first Affiliated Hospital of Anhui Medical University, Hefei 230001, China. Sijing Zhou Department of Occupational Medicine, Third People's Hospital of Hefei, Hefei 230001, China. Jianping Zhao Department of Respiratory, Affiliated Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. Yongjian Xu Department of Respiratory, Affiliated Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. 2015 10 16 Bronchial asthma is the common chronic inflammatory disease and is characterized by chronic airway inflammation, airway remodeling, and airway hyperreactivity (AHR). Aim of this study was to investigate the effects of mitochondrial ATP-sensitive potassium channels (MitoKATP) on the proliferation and secretion of human airway smooth muscle cells (HASMCs). HASMCs were treated with the serum from asthmatic patients to establish HASMCs asthma model of passive sensitization. Rhodamine 123 (R-123) and 2,7-dichloro-dihydrofluorescein diacetate (DCFH-DA) fluorescence staining were used to detect mitochondrial membrane potential (Δψm) and the content of reactive oxygen species (ROS) in the cells, respectively. The cell counting was used to detect cell proliferation, and RT-PCR was used to detect the expression of TGF-β1 mRNA. In the normal + Diazoxide group, the fluorescence intensity of R-123, ROS content, cell proliferation and TGF-β1 expression were enhanced, compared with the normal control group (p<0.05). There were no significant differences between the normal + 5-hydroxydecanoate (5-HD) group and the normal control group. In the asthma model control group, the fluorescence intensity of R-123, ROS content, cell proliferation and TGF-β1 expression were enhanced, compared with normal control group, (p<0.05). The aforementioned indices were enhanced in the asthma model + Diazoxide group, when compared with the asthma model control group, whereas these indices were attenuated in the asthma model + 5-HD group, when compared with the asthma model control group (p<0.05). In conclusion, asthma could activate MitoKATP channels in HASMCs, promote HASMC proliferation and TGF-β1 expression. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/425 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/425/412

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 428 432 EN Ahmad Soltani Department of Cell and Molecular Biology, Faculty of Science, University of Tehran, Tehran, Iran. Sara RahmatiRad Department of Cell and Molecular Biology, Faculty of Science, University of Tehran, Tehran, Iran. Zahra Pourpak Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran. Zahra Alizadeh Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran. Shiva Saghafi Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran. Bashir HajiBeigi Tehran Blood Transfusion Organization, Tehran, Iran. Majid Zeidi Tehran Blood Transfusion Organization, Tehran, Iran. Ali Farazmand Department of Cell and Molecular Biology, Faculty of Science, University of Tehran, Tehran, Iran. 2015 10 16 Mannose-binding lectin (MBL) is a Ca⁺² -dependent collagenous lectin, that is produced by liver and mediates innate immune responses by opsonization of pathogens. The serum level of MBL varies widely among healthy individuals, ranging from 0.05 µg/ml (or lower) to over 5 µg/ml, mainly depending on genetic variation. This study has examined promoter and exon 1 of mbl2 genotype among 117 Iranian healthy blood donors. MBL Single Nucleotide Polymorphisms (SNPs) were genotyped using polymerase chain reaction (PCR), and serum levels of MBL were quantified using a double-antibody enzyme linked immunosorbent assay (ELISA). Results of this study showed that there are two promoter polymorphisms at -550 (H/L variants) and -221 (Y/X variants) positions, and three polymorphisms in exon 1 at codon 52 (D Allele), 54 (B Allele), and 57 (C Allele) in this population. B allele was significantly correlated with the lowest serum MBL level. Our results also showed that the most frequent genotype was HYA/LXA, and the genotype that associated with the highest serum level of MBL was HYA/HYA. The genotype that causes lowest MBL production in Iranian population was LYB/LXA. These results showed some differences compared to that of the other populations. To verify the originality of these differences we may need to extend the study to a larger samples of respective populations; meanwhile the importance of a new mutation, nucleotide 101 of MBL2 exon1, reported in the current study should be taken in considerations in terms of its possible pathobiological effects in following studies. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/424 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/424/413

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 433 439 EN Farahzad Jabbari Azad Allergy Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. Ali Talaei Psychiatry and Behavioral Sciences Research Center, School of Medicine, Mashhad University of Medical Sciences Mashhad, Iran. Houshang Rafatpanah Inflammation and Inflammatory research center, Mashhad University of Medical Sciences, Mashhad, Iran. Hadis Yousefzadeh Immunology research center, Student research committee, Mashhad University of Medical Sciences, Faculty of Medicine, Mashhad, Iran. Rahele Jafari Psychiatry and Behavioral Sciences Research Center, School of Medicine, Mashhad University of Medical Sciences Mashhad, Iran Andishe Talaei Department of Biotechnology,  University College of Sciences, University of Tehran, Tehran, Iran. Reza Farid Hosseini Allergy Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. Majid Jafari Allergy Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. 2015 10 16 The role of transforming growth factor (TGF)-β1, interferon (IFN)-γ, interleukin (IL)-2, IL-3, and IL-6 in the pathogenesis of Alzheimer's Disease (AD) has long been reported in literature. In this case-control study, the concentrations of these cytokines in altered T lymphocytes, as well as serum vitamin B12, have been compared in terms of factors such as, age, the clinical course and the patients' disease risk. 40 patients who met the DSM-IV-TR criteria of AD were selected and an age- and gender-matched control group was recruited. The participants' cognitive performance was measured according to the Mini Mental State Examination (MMSE), the Global Deterioration Scale (GDS) and Clinical Dementia Ratio (CDR). The levels of cytokines were measured in supernatants of lymphocytes culture, using assays of ELISA and atomic absorption. Higher levels of IL-6 and IFN-γ were found more in the altered T lymphocytes of the AD patients rather than in the control individuals. Furthermore, a marginal significant difference was found between the TGF-β levels of the two study groups. Regression analysis of CDR score and cytokines showed the inverse significant correlation between CDR score and IFN-γ levels. Furthermore, the relation between MMSE scores and IFN-γ was significant, meaning that by increasing MMSE score, IFN-γ level was significantly increased. This study suggests that the levels of IL-6 and IFN-γ are significantly increased in altered T lymphocytes of AD patients, as compared to those who are not inflicted with AD, and that they are related to the patient's age. Also, IFN-γ is related to the severity stage of the AD. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/423 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/423/414

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 440 446 Nasrollah Erfani Cancer Immunology group, Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical sciences, Shiraz, Iran. erfanin@sums.acir. Sajjad Ahrari Department of Biology, College of Science, Shiraz University, Shiraz, Iran. Sajadahrari@yahoo.com. Iman Ahrari Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran. Imanahrari@gmail.com. Seyed Vahid Hosseini Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. Hosseineeer@yahoo.com. 2015 10 16 C-C motif chemokine 22 (CCL22) C16A genetic variation (rs4359426) and C-C chemokine receptor type 4 (CCR4) C1014T variation (rs2228428) have been suggested to affect the expression level of the cognate proteins. Here we tried to investigate the plausible association of these polymorphisms with development of colorectal cancer. 165 patients with colorectal adenocarcinoma (age 54.4±13.4) and 150 age- and sex-matched healthy individuals were enrolled. Genotyping was performed by PCR-RFLP methods. Results indicated the frequency of 16A allele in CCL22 gene to be 31/330(9.4%) and 33/300(11%) in patients and controls, respectively (p=0.59). The frequencies of CC, CA, and AA genotypes at this locus were not significantly different between patients and controls (135/165; 81.8%, 29/165; 17.6%, 1/165; 0.6% in the patients and 121/150; 80.1%, 25/150; 16.6% and 4/150; 2.6% in the control group, p= 0.34). At the locus 1014 in CCR4, T allele was observed with the frequency of 107/330 (32.4%) and 83/300 (27.7%) in patients and controls, respectively (p=0.22). Analyses indicated no significant differences in the frequencies of CC, CT and TT genotypes at this locus between patients and controls (77/165; 46.7%, 69/165; 41.8% and 19/165; 11.5%; versus 83/150; 55.0%, 51/150; 33.8% and 16/150; 10.6%, respectively, p= 0.29). The presence of individual genotypes was not associated with clinicopathological characteristics of the disease, including tumor size, tumor grade and LN involvement (all with p<0.05). These findings collectively suggested that CCR4 C1014T and CCL22 C16A genetic variations were neither associated with the risk, nor with the progression of colorectal cancer in Iranian population. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/422 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/422/415

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 447 452 EN Fatemeh E Mahjoub Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran AND Department of Pathology, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran. Hoda Asefi Department of Pathology, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran. Fatemeh Farahmand Department of Pediatric Gastroenterology, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran. Zahra Pourpak Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran. Zahra Amini Department of Pathology, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran. Ata Abbasi Department of Pathology, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran. 2015 10 16 Mast cells are related to certain gastrointestinal complaints. Mast cell density has not been studied in cardio-esophageal region to the best of our knowledge. In this study we wanted to obtain an estimate of mast cell density in this region and compare it with mast cell density in antrum. From April 2007 till March 2010, we chose children (<14 years old) who underwent upper endoscopy and from whom the taken biopsy was stated to be from lower third of esophagus, but in microscopic examination either cardio- esophageal mucosa or only cardiac mucosa was seen. Mast cells were counted by Giemsa stain at × 1000 magnification in 10 fields. 71 children (<14 years old) were included in this study of which, 63.4% (n=45) were female and 36.6% (n=26) were male. The mean age of patients was 7.20 ± 4.21 years (range: 0.2 -14 years). The most common clinical manifestations were recurrent abdominal pain (64.8%) and vomiting (23.9%) followed by symptoms of gastro-esophageal reflux disorder, poor weight gain, hematemesis and dysphagia. The mean mast cell density in the cardiac mucosa was 33.41 ± 32.75 in 0.25 mm2 (range: 0-155), which was two times of that in antral mucosa. We found a significant but weak positive correlation at the 0.05 level between mast cell density of cardiac mucosa and the antrum. Higher mast cell counts were seen in cardiac mucosa in this study. Significant positive correlation between mast cell density of cardiac mucosa and the antrum could hint to a single underlying etiology for the inflammatory process in gastro- esophageal junction and gastric mucosa. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/421 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/421/416

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 453 455 EN Amel Chaabane Department of Pharmacology, University of Medicine, Monastir, Tunisia. Najah Ben Fadhel Department of Pharmacology, University of Medicine, Monastir, Tunisia. Zohra Chadli Department of Pharmacology, University of Medicine, Monastir, Tunisia. Nadia Ben Fredj Department of Pharmacology, University of Medicine, Monastir, Tunisia. Naceur A Boughattas Department of Pharmacology, University of Medicine, Monastir, Tunisia. Karim Aouam Department of Pharmacology, University of Medicine, Monastir, Tunisia. 2015 10 16 We describe, the first case of phenobarbital-induced DRESS syndrome presenting as a lichenoïd eruption. A 49-year-old man had received phenobarbital for a cerebral metastasis. Twenty-five days later, he developed a purplish skin eruption, odynophagia, oral mucosal erosion and fever. Physical examination revealed a cervical lymphadenopathy and facial edema associated to a diffuse violaceous maculo-papular itchy rash. Laboratory findings showed a 1200/mm³ eosinophil's cell count. Alanine aminotransferase was 169 IU/l. Lactate dehydrogenase and creatinine phosphokinase were at 768 and 90 IU/l, respectively. All symptoms resolved completely five weeks after phenobarbital withdrawal. Few days later, the patient died because of a cardio-respiratory arrest. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/420 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/420/417

Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 13 6 2014 12 15 456 458 EN Hamid Nasri Department of Nephrology, Division of Nephropathology, Isfahan University of Medical Sciences, Isfahan 2015 10 16 Henoch-Schönlein purpura nephritis and IgA nephropathy are currently considered to be different clinical presentations of the same disease. There is need for a reliable proven, morphologic classification that can help clinicians more accurately formulate treatment strategies for patients with Henoch-Schönlein purpura nephritis. Considering that Henoch-Schönlein purpura nephritis and IgA nephropathy have common characteristics of pathogenesis and histopathologic findings, we postulate that, the Oxford classification could also help predict long-term outcomes in Henoch-Schönlein purpura nephritis. Hence, we suggest to applicate the Oxford classification for patients with Henoch-Schönlein purpura nephritis. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/419 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/419/418