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Immunological Investigations

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https://www.readbyqxmd.com/read/30332318/thyroglobulin-antibodies-are-associated-with-symptom-burden-in-patients-with-hashimoto-s-thyroiditis-a-cross-sectional-study
#1
Ana Barić, Luka Brčić, Sanda Gračan, Veselin Škrabić, Marko Brekalo, Marta Šimunac, Vesela Torlak Lovrić, Iva Anić, Maja Barbalić, Tatijana Zemunik, Ante Punda, Vesna Boraska Perica
BACKGROUND: Hashimoto's thyroiditis (HT) is the most common form of autoimmune thyroid disorders characterized by lower production of thyroid hormones and positivity to autoantibodies to thyroglobulin (TgAb) and/or thyroid peroxidase (TPOAb). We performed a comprehensive phenotypic characterization of patients with HT, with specific focus on thyroid autoimmunity, to get better understanding of disease manifestation. METHODS: We collected information on thyroid-specific phenotypes (TSH, T3, T4, fT4, TgAb, TPOAb, thyroid volume) and other clinical phenotypes (age, body surface area, number of hypothyroidism symptoms, blood pressure) from 290 patients with HT without levothyroxine (LT4) therapy with the aim to test for correlations between thyroid-specific and clinical phenotypes...
October 17, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30325691/association-of-kir-genotypes-and-haplotypes-in-hbeag-positive-chronic-hepatitis-b-patients-treated-with-entecavir
#2
YunLong Zhuang, XiXi Li, Xiaohua Li, HuiCong Xu, Hui Ye, Di Sun, XiangZhong Liu, GuiJie Ren
BACKGROUND: A large proportion of patients with chronic hepatitis B (CHB) in China do not respond to entecavir (ETV) treatment. It remains unclear whether the Killer immunoglobulin-like receptor (KIR) genotypes and haplotypes were associated with the advantage of seroconversion in phepatitis B e-Antigen (HBeAg) positive CHB patients treated with ETV. METHODS: Polymerase chain reaction with sequence-specific primers (PCR-SSP) was used to analyze KIR genes in a Chinese Han population of 198 ETV-treated HBeAg-positive CHB patients and 200 healthy controls...
October 16, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30325683/evaluation-and-characteristics-of-immunological-adjuvant-activity-of-purified-fraction-of-albizia-julibrissin-saponins
#3
Binnian Zhu, Tianyu He, Xiangyun Gao, Minghua Shi, Hongxiang Sun
PURPOSE: The purified fraction of Albizia julibrissin saponins (AJSAF) was evaluated and characterized for the adjuvant activity on porcine reproductive and respiratory syndrome virus (PRRSV) vaccine. METHODS: The effects of AJSAF on serum PRRSV N protein-specific antibody titers, splenocyte proliferation, natural killer (NK) cell activity, mRNA expression of cytokines and transcription factors, secretion of cytokines, T cells response in splenocytes, as well as delayed type hypersensitivity (DTH) in the mice immunized PRRSV vaccine were determined by ELISA, MTT assay, flow cytometry and quantitative real-time PCR (qRT-PCR)...
October 16, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30325682/regulatory-t-cells-and-their-association-with-serum-markers-and-symptoms-in-systemic-lupus-erythematosus-and-rheumatoid-arthritis
#4
Vikas Kailashiya, Usha Singh, Ranjan Rana, Nand Kumar Singh, Debabrata Dash, Jyotsna Kailashiya
PURPOSE: Impairment in number and functions of regulatory T cells (Treg) has been found to be associated with many autoimmune diseases including systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). This study was conducted to identify and compare Treg by flow cytometry using two different staining approaches. METHODS: Treg were identified by using CD4+CD25+high and CD4+CD25+CD127dim staining approaches in SLE and RA patients and healthy controls. Association of both identified Treg levels with various serum markers and clinical presentation was also examined...
October 16, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30321083/biological-markers-of-oxidative-stress-in-cardiovascular-diseases-after-so-many-studies-what-do-we-know
#5
Josef Fontana, Michal Zima, Vaclav Vetvicka
Numerous conditions, including cancer, diabetes, aging, and atherosclerosis, are thought to be associated with oxidative stress. Oxidative stress is defined as a persistent imbalance between oxidation and antioxidation, resulting in the damage of cellular macromolecules and is often considered to be involved in wide variety of human diseases. However, the current literature is very heterogeneous making it rather difficult to draw general conclusions. Often, different biomarkers have been used in different health problems...
October 15, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30321082/association-between-toll-like-receptor-3-tlr3-rs3775290-tlr7-rs179008-tlr9-rs352140-and-chronic-hcv
#6
Youssef M Mosaad, Shereen S Metwally, Raghda E Farag, Zakeria F Lotfy, Hosam E AbdelTwab
BACKGROUND: Inconsistent results were reported on the association of TLRs polymorphisms with the risk of HCV infection and HCV-related diseases. OBJECTIVE: to assess the relation between TLR3 rs3775290, TLR7 rs17900 and TLR9 rs352140 SNPs and chronic HCV in the Egyptian cohort and to study their relation to interferon response. METHODS: TLR3 rs3775290, TLR7 rs179008 and TLR9 rs352140 gene polymorphisms were typed by RFLP for 100 patients with chronic HCV and 25 with HCC in addition to 100 healthy controls...
October 15, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30321079/antigen-presenting-cell-characteristics-of-human-%C3%AE-%C3%AE-t-lymphocytes-in-chronic-myeloid-leukemia
#7
Piamsiri Sawaisorn, Tienrat Tangchaikeeree, Waraporn Chan-On, Chaniya Leepiyasakulchai, Rachanee Udomsangpetch, Suradej Hongeng, Kulachart Jangpatarapongsa
Human γδ T lymphocytes play a role in the immune system defense against cancer. Their broad anti-cancer activity against different types of cancers makes them outstanding candidates for cancer immunotherapy. An issue of recent interest is whether their antigen presentation features are similar to mature dendritic cells. The antigen-presenting cell (APC)-like phenotype and function of γδ T lymphocytes have been confirmed in many clinical trials. In this study, to support the strong role played by Vγ9Vδ2 T cells against cancer, we provide evidence that Vγ9Vδ2 T cells activated with chronic myeloid leukemia (CML) cell lysate antigens can efficiently express an APC phenotype and function...
October 15, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30321074/adipokines-in-multiple-sclerosis-patients-with-and-without-optic-neuritis-as-the-first-clinical-presentation
#8
Berna Düzel, Yusuf Tamam, Arzu Çoban, Erdem Tüzün
BACKGROUND: Adipocytokines have been implied to be involved in multiple sclerosis (MS) pathogenesis. MS patients whose first clinical episode is optic neuritis (ON) have been reported to display a milder disease course. In this study, we aimed to show whether this milder disease course is related to reduced adipokine production. METHODS: A total of 55 (24 with ON as the first clinical episode) relapsing-remitting MS (RRMS) patients and 40 healthy individuals were recruited...
October 15, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30321073/the-relationship-of-cox-2-gene-polymorphisms-and-susceptibility-to-kawasaki-disease-in-chinese-population
#9
Shentang Li, Ruting Shi, Lang Tian, Jia Chen, Xin Li, Lihua Huang, Zuocheng Yang
BACKGROUND: Kawasaki disease (KD) is an acute systemic vasculitis that predominantly affects children, and it can result in coronary artery lesions. Cyclooxygenase-2 (COX-2) is involved in the conversion of arachidonic acid to prostaglandin H2, an important precursor of several prostaglandins. The aim of this study was to examine the association between COX-2 gene polymorphisms and susceptibility to KD. METHODS: A total of 276 subjects (136 KD and 140 controls) were recruited...
October 15, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30300034/genetic-relationship-between-il-6-rs1800796-polymorphism-and-susceptibility-to-periodontitis
#10
Bo Zhao, Xiaoqian Li, Ronghua Li
BACKGROUND: There are accumulating reports for the potential role of Interleukin-6 (IL-6) rs1800796 polymorphism in the risk of periodontitis. However, distinct conclusions are observed. In this study, we have an interest in comprehensively analyzing the genetic relationship between IL-6 rs1800796 and the susceptibility to periodontitis. METHODS: We retrieved the eligible case-control studies from on-line database and conducted a meta-analysis. P-value of association test, OR (odd ratios) and 95% CI (confidence interval) were calculated for the assessment of potential genetic association...
October 9, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30273064/analysis-of-the-association-of-polymorphisms-rs5743708-in-tlr2-and-rs4986790-in-tlr4-with-atopic-dermatitis-risk
#11
Yuan Zhang, Hui-Cong Wang, Chao Feng, Min Yan
BACKGROUND: We carried out a meta-analysis to assess whether Toll-like receptor 2 (TLR2) rs5743708 and Toll-like receptor 4 (TLR4) rs4986790 polymorphisms are associated with the risk of atopic dermatitis. METHODS: A systematic search of PubMed, Embase, and Web of Science was performed to identify eligible case-control studies on the association of rs5743708 and rs4986790 with the risk of atopic dermatitis. Statistical analyses of the odds ratio (OR), 95% confidence interval (CI), and p value were performed using STATA software...
October 1, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30260727/hla-class-i-in-egyptian-patients-with-beh%C3%A3-et-s-disease-new-association-with-susceptibility-protection-presentation-and-severity-of-manifestations
#12
Mohanad M Elfishawi, Fatema Elgengehy, Ghada Mossallam, Sally Elfishawi, Mostafa Alfishawy, Abdallah Gad, Imman Mokhtar
INTRODUCTION: Behçet's disease is an autoimmune disease with diverse clinical manifestations with vasculitis being the hallmark of the disease. The aim of this work is to study the genetic association between human leukocyte antigen (HLA) class-I molecules of Egyptians with Behçet's disease and the disease susceptibility and clinical patterns. METHODS: Fifty-seven patients diagnosed with Behçet's disease according to the 1990 International Study Group (ISG) criteria for Behçet's disease coming from Egyptian origin up to the third grandfather were included in the study...
September 27, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30260716/mir-350-3p-contributes-to-age-associated-impairment-of-il-6-production-by-macrophages
#13
Huiying Chang, Xu Wang, Shusen Yang
Aging-associated dysfunction of the immune system contributes to the increase in pathophysiological processes that occur with age. Numerous studies have shown that microRNAs regulate immune responses, although their role in age-related macrophage dysfunction remains elusive. Here, we found that miR-350-3p is expressed at lower levels in peritoneal macrophages from aged mice compared with young mice, and that lipopolysaccharide (LPS) stimulation downregulates miR-350-3p expression to a greater extent in young macrophages compared with aged macrophages...
September 27, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30239236/direct-engagement-of-tlr9-ligand-with-t-helper-cells-leads-to-cell-proliferation-up-regulation-of-cytokines
#14
Ravi Kumar Sharma, Shobha Sehgal, Naresh Sachdeva, Rajendra Kumar, Amod Gupta
PURPOSE: Toll like receptor (TLR) engagement is primarily a function of the innate immune cells. The purpose of the study was to assess direct uptake of ODN 2216 in T helper cells and effects on cell proliferation and cytokine expression. METHODS: We isolated CD4+ CD25- T helper cells by magnetic sorting and studied the uptake of ODN 2216 using flow cytometry and confocal microscopy. We then studied the effect of ODN 2216 engagement on cell proliferation and cytokine expression using flow cytometry and gene expression of TLR9 signaling genes using real time RT-PCR...
September 21, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30204524/enhanced-anti-leukemic-effects-through-induction-of-immunomodulating-microenvironment-by-blocking-cxcr4-and-pd-l1-in-an-aml-mouse-model
#15
Hee-Sun Hwang, A-Reum Han, Ji Yoon Lee, Gyeong Sin Park, Woo-Sung Min, Hee-Je Kim
Previously, we found that dual therapy by the CXCR4 inhibitor Plerixafor and cytosine arabinoside (Ara-C) effectively eradicated leukemia cells and concurrently activated immune cells in acute myeloid leukemia (AML). To reveal the significance of programmed death-ligand1 (PD-L1) in AML and as a strategic approach, we investigated the anti-leukemic effect of a triple combinational therapy by utilizing Plerixafor and anti-PD-L1 in combination with chemotherapy in an AML mouse model. We examined leukemic myeloid blast cells in multiple organs after the successive treatment with Ara-C, Plerixafor, and anti-PD-L1...
September 11, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30204505/impact-of-il-27p28-rs153109-and-tnf-%C3%AE-rs1800629-genetic-polymorphisms-on-the-progression-of-hcv-infection-in-egyptian-patients
#16
Ebram Tharwat, Gamal F M Gad, Maiiada H Nazmy, Hala I Mohamed, Nouran Hamza, Ahmed Wahid, Ahmed R N Ibrahim
BACKGROUND: Hepatitis C virus (HCV) is a universal health problem. HCV infection may proceed to liver fibrosis, cirrhosis, and eventually hepatocellular carcinoma (HCC). The latest is the third leading global cause of cancer-related mortality. Cytokines including IL-27 and TNF-α play a major role as a link between innate and adaptive immunity which in turn deduct the outcome of HCV infection. AIM: The present study examined the role of both (-964 A/G) single-nucleotide polymorphism (SNP) of IL-27p28 rs153109 and (-308 G/A) SNP of TNF-α rs1800629 on the progression of HCV infection in genotype 4a infected patients...
September 11, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30188221/mussel-adhesive-protein-conjugated-vitronectin-fp-151-vt-induces-anti-inflammatory-activity-on-lps-stimulated-macrophages-and-uvb-irradiated-keratinocytes
#17
Jung-Mo Ahn, Jun Sik Lee, Seul-Gee Um, Beom-Seop Rho, Ki Beom Lee, Sung-Gil Park, Ho-Jin Kim, Yoonjin Lee, Young Min Chi, Ye-Eun Yoon, Sun Hyo Jo, Mi Eun Kim, Kyung-Bae Pi
BACKGROUND: Skin inflammation and dermal injuries are a major clinical problem because current therapies are limited to treating established scars, and there is a poor understanding of healing mechanisms. Mussel adhesive proteins (MAPs) have great potential in many tissue engineering and biomedical applications. It has been successfully demonstrated that the redesigned hybrid type MAP (fp-151) can be utilized as a promising adhesive biomaterial. The aim of this study was to develop a novel recombinant protein using fp-151 and vitronectin (VT) and to elucidate the anti-inflammatory effects of this recombinant protein on macrophages and keratinocytes...
September 6, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30188218/circulating-levels-of-osteoprotegerin-osteocalcin-and-osteopontin-in-patients-with-rheumatoid-arthritis-a-systematic-review-and-meta-analysis
#18
Li-Na Liu, Yan-Mei Mao, Chan-Na Zhao, Hong Wang, Fei-Fei Yuan, Xiao-Mei Li, Hai-Feng Pan
OBJECTIVE: Currently published data regarding the potential role of osteoprotegerin (OPG), osteocalcin (OCN) and osteopontin (OPN) for the discrimination between rheumatoid arthritis (RA) and osteoarthritis (OA) are contradictory. To derive a more precise evaluation, a meta-analysis was performed. METHODS: Published literatures comparing plasma/serum OPG, OCN and OPN levels between RA group and OA controls were searched in PubMed, Embase and the Cochrane Library...
September 6, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30156938/therapeutic-use-of-intrathecal-mesenchymal-stem-cells-in-patients-with-multiple-sclerosis-a-pilot-study-with-booster-injection
#19
Mohammad Ali Sahraian, Mandana Mohyeddin Bonab, Seyed Mohammad Baghbanian, Mahsa Owji, Abdorreza Naser Moghadasi
BACKGROUND: Mesenchymal stem cells (MSCs) are a potential therapy for various diseases. Here, the results of intrathecal injection of MSCs in multiple sclerosis (MS) patients are reported. MATERIALS AND METHODS: Four patients were enrolled in the study. Three were male and one was female. There were three secondary-progressive MS patients and one relapsing-remitting MS patient. An amount of 50-80 ml of bone marrow was collected from the patients. MSC cultures were collected for each microbiological examination at each change of medium and passage as well as at the time of sample injection...
August 29, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/30081731/genetic-analysis-of-patients-with-two-different-types-of-hyper-igm-syndrome
#20
Zahra Alizadeh, Marzieh Mazinani, Masoud Houshmand, Leila Shakerian, Maryam Nourizadeh, Zahra Pourpak, Mohammad Reza Fazlollahi
BACKGROUND: Hyper IgM Syndrome (HIGM) is a rare primary immunodeficiency in which impairment of class switching recombination (CSR) and somatic hyper-mutation (SHM) leads to recurrent infections. OBJECTIVES: The aim of this study is to report the clinical and genetic features of six Iranian HIGM patients. METHODS: Six patients, who suspected to have HIGM based on two clinical findings, including recurrent infections and low levels of IgG and IgA and normal or elevated levels of IgM, were entered this study to undergo genetic studies...
August 6, 2018: Immunological Investigations
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