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Interleukin-8 genetic polymorphism and its relation to Helicobacter pylori infection and Helicobacter pylori-associated gastric diseases. 白细胞介素-8基因多态性及其与幽门螺旋杆菌感染和幽门螺旋杆菌相关胃病的关系
Pub Date : 2024-01-01 DOI: 10.55133/eji.310106
Ibrahim A Amin, Mona A Hassan, S. Elgendy, A. Abdelmohsen, Mamdouh Y Ali, Bahaa-Eldin A Abdel-Raady
Helicobacter pylori (H. pylori) infection has a variety of clinical outcomes, and host genetic factors play an important role in this process. Cytokines are important factors in mediating and controlling the inflammatory process during H. pylori infection. Interleukin-8 (IL-8) plays a critical role in the epithelial cell response to H. pylori infection and the development of H. pylori-related gastric disorders. The IL-8 gene has an A/T base pair polymorphism in the promoter region (-251), which has been linked to an increase in interleukin production by gastric epithelial cells. In this context, the goal of our study was to determine the polymorphism in the IL-8 gene and its relation to H. pylori infection and H. pylori-associated gastric diseases. Gastric biopsy specimens were collected from 44 patients with H. pylori infection and 29 patients without H. pylori infection. The rapid urease test and detection of the glmM gene were used to diagnose H. pylori infection. Polymerase chain reaction-restriction fragment length polymorphism was used to identify the polymorphism in the Il-8 gene (at position-251). The presence of the A/A and T/A genotypes of the IL-8 gene was found to be significantly associated with susceptibility to H. pylori infection (p = 0.012 and p = 0.004, respectively). Also, the IL-8 A allele was significantly associated with H. pylori infection in our study (p = 0.002). We did not find a significant association between IL-8 gene polymorphism and a higher risk of gastritis and peptic ulcer disease. In conclusion, IL-8 gene polymorphism at -251 position was significantly associated with H. pylori infection.
幽门螺杆菌(H. pylori)感染会导致多种临床结果,而宿主遗传因素在这一过程中发挥着重要作用。在幽门螺杆菌感染过程中,细胞因子是介导和控制炎症过程的重要因素。白细胞介素-8(IL-8)在上皮细胞对幽门螺杆菌感染的反应和幽门螺杆菌相关胃病的发生中起着关键作用。IL-8 基因的启动子区域有一个 A/T 碱基对多态性(-251),这与胃上皮细胞白细胞介素分泌的增加有关。因此,我们的研究旨在确定 IL-8 基因的多态性及其与幽门螺杆菌感染和幽门螺杆菌相关胃病的关系。我们收集了 44 名幽门螺杆菌感染患者和 29 名未感染幽门螺杆菌患者的胃活检标本。采用快速尿素酶试验和检测 glmM 基因来诊断幽门螺杆菌感染。聚合酶链式反应-限制性片段长度多态性被用来鉴定 Il-8 基因(位于 251 位)的多态性。结果发现,IL-8基因的A/A和T/A基因型与幽门螺杆菌感染的易感性显著相关(分别为p = 0.012和p = 0.004)。此外,在我们的研究中,IL-8 A 等位基因与幽门螺杆菌感染也有显著相关性(p = 0.002)。我们没有发现IL-8基因多态性与胃炎和消化性溃疡病的高风险有明显关联。总之,-251位的IL-8基因多态性与幽门螺杆菌感染密切相关。
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引用次数: 0
Assessment of long noncoding RNA CCAT1 using real time-polymerase chain reaction in colorectal cancer patients. 利用实时聚合酶链反应评估结直肠癌患者体内的长非编码 RNA CCAT1
Pub Date : 2024-01-01 DOI: 10.55133/eji.310111
Amal A Mahmoud, Hanan O Mohamed, Mahmoud R Shehata, Alyaa A S Refae, Mostafa H Abd El Salam, M. I. Seddik
Colorectal cancer (CRC) is linked to high mortality, mainly when discovered in its advanced stages. Several studies have pointed to the role of epigenetic factors in CRC and other cancers. Long non-coding RNAs (lncRNAs) are involved in the initiation, progression, metastasis, and modulation of the response to chemotherapeutic modalities of CRC as vital contributors to epigenetic mechanisms. Colon cancer-associated transcript-1 (CCAT1) is one of the lncRNAs that have been dysregulated in serum samples, providing a non-invasive route for diagnosing CRC patients. This study aimed to determine the role of CCAT1 expression as diagnostic and prognostic markers. We tested the associations of CCAT1 expression with serum carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA 19-9). The study included three groups: 41 patients with colorectal cancer, 39 patients with precancerous benign colorectal diseases, and 20 normal control individuals. CEA and CA 19-9 were measured by an immunoassay automated system. The expression level of CCAT1 was assessed by a real-time polymerase chain reaction. There was a statistically significant elevation of serum CEA levels in patients with CRC compared to patients with precancerous benign colorectal diseases. Furthermore, there was no statistically significant difference in serum CA 19-9 levels between all groups (p = 0.102). Interestingly, CCAT1 expression was significantly upregulated in the blood of CRC patients compared to the precancerous benign colorectal diseases group (p = 0.009) and the control group (p <0.001). Also, expression of CCAT1 was significantly elevated in patients with precancerous benign colorectal diseases compared to the control group (p=0.004). In conclusion, measuring the expression level of CCAT1 is more advised than assessment of CEA and CA 19-9 for the early diagnosis and prognosis of colorectal cancer.
结肠直肠癌(CRC)与高死亡率有关,主要是在晚期发现时。一些研究指出了表观遗传因素在 CRC 和其他癌症中的作用。长非编码 RNA(lncRNA)作为表观遗传机制的重要贡献者,参与了 CRC 的发生、发展、转移以及对化疗方式反应的调节。结肠癌相关转录本-1(CCAT1)是血清样本中出现失调的lncRNA之一,它为诊断CRC患者提供了一种非侵入性途径。本研究旨在确定 CCAT1 表达作为诊断和预后标志物的作用。我们检测了CCAT1表达与血清癌胚抗原(CEA)和碳水化合物抗原19-9(CA 19-9)的相关性。研究包括三组人:41 名结直肠癌患者、39 名癌前良性结直肠疾病患者和 20 名正常对照组人。CEA 和 CA 19-9 采用免疫测定自动系统进行测量。CCAT1 的表达水平通过实时聚合酶链反应进行评估。与癌前良性结直肠疾病患者相比,CRC 患者血清 CEA 水平的升高具有统计学意义。此外,各组间血清 CA 19-9 水平差异无统计学意义(P = 0.102)。有趣的是,与癌前良性结直肠疾病组(p = 0.009)和对照组(p <0.001)相比,CCAT1 在 CRC 患者血液中的表达明显上调。此外,与对照组相比,癌前良性结直肠疾病患者 CCAT1 的表达明显升高(p=0.004)。总之,在结直肠癌的早期诊断和预后方面,测量 CCAT1 的表达水平比评估 CEA 和 CA 19-9 更有价值。
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引用次数: 0
Prevalence of viral hepatitis (A, B, C, and E) infection and co-infection among hospitalized children in Cairo, Egypt. 埃及开罗住院儿童病毒性肝炎(甲型、乙型、丙型和戊型)感染和合并感染的流行率。
Pub Date : 2024-01-01 DOI: 10.55133/eji.310104
Enas Mostafa, Reem El-Shenawy, Ashraf Tabll, S. Shoman
Viral hepatitis is considered a public health issue facing the entire world. The World Health Organization encouraged all countries to work together to eliminate this fatal infection and achieve the 2030 agenda. The present study aimed to investigate the silent infection of viral hepatitis (A, B, C, and E) among hospitalized children in Cairo, Egypt, to control and avoid chronic infection early on. This cross-sectional study included 184 randomly selected hospitalized children from three different hospitals in Cairo, Egypt. They were children aged between a few months to 15 years to determine viral hepatitis infection and co-infection. Antibodies to hepatitis A virus (HAV IgM), hepatitis E virus (HEV IgM), hepatitis C virus (HCV Ab), and hepatitis B virus surface antigen (HBs Ag) were performed by ELISA. If the ELISA results were positive, the viral load was quantified by real-time polymerase chain reaction (RT-PCR). Other laboratory investigations included alanine aminotransferase, aspartate aminotransferase, albumin, and complete blood count. Only five children (2.71%) had HCV Ab positive with no other viral (A, B, and E) co-infections as determined by ELISA. Also, the RT-PCR detected HCV RNA in these ELISA positive children. The remaining children (179/184) were all negative for all hepatitis viruses' markers (HAV IgM, HEV IgM, HBs Ag, and HCV Ab). In conclusion, this study documented that, Cairo hospitals serving Egyptian children had a low prevalence of viral hepatitis (A, B, C, and E). More research with larger sample sizes from hospitals across Egypt is needed.
病毒性肝炎被认为是全世界面临的一个公共卫生问题。世界卫生组织鼓励所有国家共同努力消除这一致命感染,实现 2030 年议程。本研究旨在调查埃及开罗住院儿童中病毒性肝炎(甲型、乙型、丙型和戊型)的隐性感染情况,以尽早控制和避免慢性感染。这项横断面研究包括从埃及开罗三家不同医院随机挑选的 184 名住院儿童。这些儿童的年龄在几个月到 15 岁之间,以确定病毒性肝炎感染和合并感染情况。采用 ELISA 方法检测甲型肝炎病毒(HAV IgM)、戊型肝炎病毒(HEV IgM)、丙型肝炎病毒(HCV Ab)和乙型肝炎病毒表面抗原(HBs Ag)的抗体。如果 ELISA 结果呈阳性,则通过实时聚合酶链反应(RT-PCR)对病毒载量进行量化。其他实验室检查包括丙氨酸氨基转移酶、天冬氨酸氨基转移酶、白蛋白和全血细胞计数。经 ELISA 检测,只有 5 名儿童(2.71%)的 HCV Ab 呈阳性,且没有其他病毒(A、B 和 E)合并感染。此外,在这些 ELISA 检测呈阳性的儿童中,RT-PCR 检测出了 HCV RNA。其余儿童(179/184)的所有肝炎病毒标记物(HAV IgM、HEV IgM、HBs Ag 和 HCV Ab)均为阴性。总之,这项研究表明,为埃及儿童提供服务的开罗医院的病毒性肝炎(甲型、乙型、丙型和戊型)发病率较低。我们需要在埃及各地的医院开展更多样本量更大的研究。
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引用次数: 0
Serum microRNA-223 as a potential biomarker for allergic rhinitis and its correlation to eosinophil-derived neurotoxin. 血清 microRNA-223 作为过敏性鼻炎的潜在生物标志物及其与嗜酸性粒细胞衍生神经毒素的相关性
Pub Date : 2024-01-01 DOI: 10.55133/eji.310101
Fedaa Nabil, M. Alnemr, Sara F. Saadawy, Haytham K A Mahrous, Yasmin A Fahmy
Allergic rhinitis (AR) is a global health problem. It is an inflammatory condition defined by a malfunction of the immune system's regulatory mechanism. MicroRNA-223 (miRNA-223) has been linked to the modulation of AR in the last few years. The goal of this study was to determine whether miR-223 can be utilized as a potential biomarker for diagnosis of AR, and whether it correlates with the total nasal symptom score (TNSS) along with serum interleukin-17 (IL-17), interleukin-4 levels (IL-4) and eosinophil-derived neurotoxin (EDN). This study included 76 adult participants, consisted of 38 AR patients and 38 apparently healthy controls. Serum levels of miR-223 were assayed using real-time PCR. The levels of EDN, IL-17 and IL-4 in the serum were determined using an enzyme-linked immunosorbent assay. The optimal cutoff value for the analyzed factors to diagnose AR was determined using a receiver operating characteristic curve analysis (ROC). The demographic features (age and gender) of the two study groups were matched. Patients with pollen-induced AR had significantly higher levels of miR-223 in their serum compared to the controls (median = 3.82; median = 1.03, respectively, p < 0.001). In AR cases, a significant positive association was observed between miR-223 expression level and TNSS (r = 0.492, p = 0.002), EDN serum level (r = 0.427, p = 0.008), IL-4 serum level (r = 0.341, p = 0.036) and IL-17 serum level (r = 0.324, p = 0.047). MiR-223, at a cutoff value of 1.18, had a sensitivity and specificity of 94.9 % and 92.5%, respectively. In conclusion, miR-223 expression is significantly greater in blood of AR patients. There is a significant association between miR-223 and clinical severity of AR, each of IL-17 and IL-4 as well as EDN. Therefore, miR-223 may be employed as an effective biomarker for AR diagnosis.
过敏性鼻炎(AR)是一个全球性的健康问题。它是由免疫系统调节机制失灵引起的炎症。在过去几年中,microRNA-223(miRNA-223)被认为与调节过敏性鼻炎有关。本研究的目的是确定 miR-223 是否可用作诊断 AR 的潜在生物标志物,以及它是否与鼻部症状总评分(TNSS)、血清白细胞介素-17(IL-17)、白细胞介素-4 水平(IL-4)和嗜酸性粒细胞衍生神经毒素(EDN)相关。这项研究包括 76 名成年参与者,其中有 38 名 AR 患者和 38 名明显健康的对照组。研究人员采用实时 PCR 技术检测了血清中 miR-223 的水平。血清中 EDN、IL-17 和 IL-4 的水平是通过酶联免疫吸附测定法确定的。采用接收器操作特征曲线分析法(ROC)确定了所分析因素诊断 AR 的最佳临界值。两个研究组的人口统计学特征(年龄和性别)相匹配。与对照组相比,花粉诱发的AR患者血清中的miR-223水平明显更高(中位数分别为3.82和1.03,p < 0.001)。在AR病例中,观察到miR-223表达水平与TNSS(r = 0.492,p = 0.002)、EDN血清水平(r = 0.427,p = 0.008)、IL-4血清水平(r = 0.341,p = 0.036)和IL-17血清水平(r = 0.324,p = 0.047)呈显著正相关。截断值为 1.18 的 MiR-223 的灵敏度和特异性分别为 94.9 % 和 92.5%。总之,miR-223 在 AR 患者血液中的表达明显增加。miR-223与AR的临床严重程度、IL-17和IL-4各自的表达量以及EDN之间存在明显的关联。因此,miR-223 可作为诊断 AR 的有效生物标记物。
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引用次数: 0
Insight on the hepatitis B virus and host immune mechanisms in the context of occult hepatitis. 洞察隐匿性肝炎中的乙型肝炎病毒和宿主免疫机制。
Pub Date : 2024-01-01 DOI: 10.55133/eji.310110
Manal El Said, Asim M Alshanberi, Faten Abouelmagd, Mohammed Shaikhomer, Faten Abouelmagd
Hepatitis B virus infection is the 10th leading cause of death around the world. Occult HBV infection (OBI) represents those with a viral load of < 104 IU/ml. Among permanent blood recipients, OBI appears to be the most common cause of posttransfusion hepatitis. Moreover, OBI may reduce hepatitis C virus (HCV) treatment responsiveness in people with chronic HCV infection, and OBI may become acutely reactivated when on immunosuppression or potentially contribute to chronic liver disease. Since most previous studies used either small sample sizes, diverse populations, or were cross-sectional in design, it is possible that using multiple techniques with varying sensitivity for HBV DNA measurement in the liver or serum will shed light on discrepancies in the impact of OBI in cases with chronic liver disease. The purpose of this research is to review many elements of OBI, such as its prevalence, the hepatitis B virus and host immune mechanisms, diagnostic procedures, clinical implications, therapy, and prevention strategies.
乙型肝炎病毒感染是全球第十大死因。隐匿性乙型肝炎病毒感染(OBI)是指病毒载量小于 104 IU/ml。在永久性受血者中,OBI 似乎是输血后肝炎最常见的原因。此外,OBI 可能会降低慢性 HCV 感染者对丙型肝炎病毒(HCV)治疗的反应性,而且 OBI 可能会在接受免疫抑制时急性再激活,或可能导致慢性肝病。由于之前的研究大多采用小样本量、不同人群或横断面设计,因此使用多种灵敏度不同的技术测量肝脏或血清中的 HBV DNA 有可能会揭示 OBI 对慢性肝病病例影响的差异。本研究的目的是回顾 OBI 的许多要素,如其流行率、乙型肝炎病毒和宿主免疫机制、诊断程序、临床意义、治疗和预防策略。
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引用次数: 0
Autoantibodies profile in autoimmune liver diseases and chronic viral hepatitis. 自身免疫性肝病和慢性病毒性肝炎的自身抗体谱。
Pub Date : 2024-01-01 DOI: 10.55133/eji.310107
R. Rabie, Alaa Hadhoud, Shymaa Abdelazim, Mohamed I Radwan, Marwa H Attia, Mohammed A Hasuna
Despite their low prevalence, autoimmune liver diseases (AILD) cause liver cirrhosis, progress and leads to mortality from liver failure. Autoantibodies are confirmed to have significance in the early screening of AILD patients, especially in those who are asymptomatic before onset of clinical signs. This study aimed to assess levels of liver autoantibodies and their association with clinical manifestations of autoimmune liver diseases and chronic viral hepatitis (CVH) patients. This case-control study included 50 patients (case group of 25 patients with AILD and control group of 25 patients with CVH). They were investigated for presence of antibodies against LKM-1, AMA-M2, PML, M2-3E (BPO), gp210, Sp100, LC-1, Ro52 and SLA/LP using the line immune blot technique, and for the presence of antinuclear antibodies (ANA), as non-organ specific autoantibodies, using indirect immunofluorescence technique. Specific autoantibodies were detected in all AILD cases and some of their levels were significantly higher when compared with CVH group. Among AILD patients, 52% were positive for ANA, whereas 61.1% of chronic hepatitis C and 28.6% of chronic hepatitis B patients were positive for ANA with no significant difference (p=0.3). In conclusion, early diagnosis of autoimmune liver diseases has been linked to assessment of autoantibodies, allowing for prompt therapeutic intervention to stop the progression of liver cirrhosis and the accompanying complications.
尽管自身免疫性肝病(AILD)的发病率很低,但它却会导致肝硬化、病情恶化并因肝功能衰竭而死亡。经证实,自身抗体对早期筛查自身免疫性肝病患者具有重要意义,尤其是那些在出现临床症状前无症状的患者。本研究旨在评估肝脏自身抗体水平及其与自身免疫性肝病和慢性病毒性肝炎(CVH)患者临床表现的关系。这项病例对照研究包括 50 名患者(病例组 25 名 AILD 患者,对照组 25 名 CVH 患者)。研究人员使用线性免疫印迹技术检测了患者体内是否存在针对 LKM-1、AMA-M2、PML、M2-3E (BPO)、gp210、Sp100、LC-1、Ro52 和 SLA/LP 的抗体,并使用间接免疫荧光技术检测了患者体内是否存在抗核抗体 (ANA)(非器官特异性自身抗体)。所有 AILD 病例都检测到了特异性自身抗体,其中一些抗体水平明显高于 CVH 组。在 AILD 患者中,52% 的患者 ANA 呈阳性,而 61.1% 的慢性丙型肝炎患者和 28.6% 的慢性乙型肝炎患者 ANA 呈阳性,两者无显著差异(P=0.3)。总之,自身免疫性肝病的早期诊断与自身抗体的评估有关,可以及时采取治疗干预措施,阻止肝硬化的进展和伴随的并发症。
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引用次数: 0
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The Egyptian journal of immunology
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