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Genome-wide Association Studies-GWAS01:11

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

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The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
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Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
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Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
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Myocarditis I: Introduction01:21

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Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
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Myocarditis II: Clinical Features and Diagnostic Tests01:27

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Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
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系統性若年性イディオパシー関節炎と川崎病の共通のゲノムシグネチャーの探求

Shiling Zhong1, Yunyan Li1, Ling Wu2

  • 1Women and Children's Hospital of Ningbo University, Pediatric Rheumatology and Immunology Department, 339 Liuting Street, Haishu District, Ningbo, 315000, China.

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まとめ
この要約は機械生成です。

システミック・ジュベニアル・イディオパシー・関節炎 (SJIA) と 川崎病 (KD) は,免疫系異常と分子プロセスを共有しています. NF-kBとTNFの活性などの主要な経路は,中性粒子の脱粒化とともに,両方の疾患を誘発する可能性があります.

キーワード:
EGR1 についてカワサキ病NF-kB信号経路中性粒子の脱粒化整体性ジュベニアル関節炎

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科学分野:

  • 免疫学
  • 遺伝学
  • 小児関節病学

背景:

  • システミック・ジュベニアル・イディオパシー・関節炎 (SJIA) とカウサキ病 (KD) は,異なる小児炎症疾患である.
  • 共通の遺伝的および分子的基盤を理解することで 共通の病原性メカニズムが明らかになります

研究 の 目的:

  • SJIAとKDの共通の遺伝的特徴と分子プロセスを特定する.
  • この2つの疾患の病原性における 共通の経路を探る

主な方法:

  • ExpressAnalystRを用いてSJIAとKD患者のマイクロアレイデータを分析した.
  • 細胞外タンパク質と転写因子 (TFs) に焦点を当てて,差異的に発現する遺伝子 (DEGs) が特定されました.
  • 機能強化分析 (メタスケープ) と免疫浸透分析 (CIBERSORT) を実施した.

主要な成果:

  • 合計で204のアップレギュレーションと35のダウンレギュレーションの単一ドメインエンコーディング遺伝子 (SDEG) が特定されました.
  • 4つの主要な転写因子 (EGR1,BCL6,FOS,NFE2) が強調された.
  • 適応性および先天性免疫系の両方が関与しており,NF- kBシグナル伝達,TNF機能,中性粒子の脱粒化に重要な役割があります.

結論:

  • SJIAとKDは,共通の病原性メカニズムを持つ複雑な免疫系異常を示しています.
  • 腫瘍死滅因子 (TNF) の活性,中性粒子の脱粒化,およびNF- kB経路は,一般的な寄与因子である可能性が高い.
  • EGR1,BCL6,FOS,およびNFE2の規制的な役割については,さらなる調査が必要である.