Background: Tuberculosis (TB) is one of the top lethal infectious diseases worldwide. In recent years, interferon-γ (INF-γ) release assays (IGRAs) have been established as routine tests for diagnosing TB infection. ...Background: Tuberculosis (TB) is one of the top lethal infectious diseases worldwide. In recent years, interferon-γ (INF-γ) release assays (IGRAs) have been established as routine tests for diagnosing TB infection. However, produced INF-γ assessment cannot permit to distinguish active ATB from latent TB infection (LTBI), especially in TB epidemic areas. In addition to IFN-γ, interleukin-2 (IL-2), secreted by activated T cells, is involved in immune response against Mycobacterium tuberculosis. This could be involved in the follow up of treatment response. The aim of our study was to determine IFN-γ and IL2 cytokines profiles of patients under antituberculosis treatment. Materials and Methods: A six months’ cross-sectional study was conducted at the Jamot Hospital of Yaoundé, from May to August 2021. Sociodemographic and clinical data as well as 5 mL of blood were collected from each participant. INF-γ and IL-2 were determined using indirect Enzyme linked Immuno-Sorbent Assay (ELISA) according to the manufacturer’s recommendations and spectrum exam in combination with radiography and GeneXpert were used as standard. P-values Results: The results showed that men were more infected 14/61 (31.8%) with a high presence in active and resistant TB groups. The mean age was 41.3 ± 13.1 years with a 95% CI = [38.2 - 44.7], the age group with the highest infection rate was ranged between 31 and 40 years. The IL-2 and INF-γ means were respectively 327.6 ± 160.6 pg/mL and 26.6 ± 13.0 pg/mL in ATB patients, 251.1 ± 30.9 pg/mL and 21.4 ± 9.2 pg/mL in patients with resistant tuberculosis, while it was 149.3 ± 93.3 pg/mL and 17.9 ± 9.4 pg/mL in cured patients, 15.1 ± 8.4 pg/mL and 5.3 ± 2.6 pg/mL in participants presumed healthy (p γ and IL-2rates were observed between the different groups. Conclusion: Monitoring the serum levels of INF-γ and IL-2 would be useful for the follow-up of anti-tuberculosis patients, particularly in the both cytokines association case.展开更多
目的基于术前血清IL-6、前列腺素E2(PGE2)、TNF-α构建预测膀胱癌术后复发的列线图模型。方法回顾性收集2018年6月至2023年2月临平区第一人民医院收治的348例膀胱癌患者的临床资料,经计算机产生随机数表并以2∶1比例将其分为训练集(232...目的基于术前血清IL-6、前列腺素E2(PGE2)、TNF-α构建预测膀胱癌术后复发的列线图模型。方法回顾性收集2018年6月至2023年2月临平区第一人民医院收治的348例膀胱癌患者的临床资料,经计算机产生随机数表并以2∶1比例将其分为训练集(232例)和验证集(116例)。所有患者均接受随访,将发生复发的患者纳入复发组,未发生复发的患者纳入未复发组。比较训练集复发组、未复发组血清IL-6、PGE2、TNF-α水平及一般资料;用Logistic回归模型分析训练集膀胱癌术后复发的影响因素,并建立回归方程;用ROC曲线分析术前IL-6、PGE2、TNF-α单独及联合预测膀胱癌术后复发的效能;建立膀胱癌术后复发的风险预测列线图模型,并验证其效能。结果与未复发组比较,复发组血清IL-6、PGE2、TNF-α水平升高,肿瘤直径增大,多发性肿瘤、肿瘤分期T 2~T 4、肿瘤WHO病理学分级Ⅱ~Ⅲ级的构成比升高,术后规律膀胱灌注的构成比降低(P<0.05)。Logistic回归分析显示,术前血清IL-6、PGE2、TNF-α、肿瘤分期、肿瘤WHO病理学分级是膀胱癌术后复发的影响因素(P<0.05),并建立Logistic回归方程:Y=1.718 X 1+2.081 X 2+1.815 X 3+2.319 X 4+1.868 X 5。ROC曲线显示,术前IL-6、PGE2、TNF-α预测膀胱癌术后复发的最佳截断点分别为0.60 ng/L、57.13 pg/mL、2.10 ng/mL,三者单独及联合预测膀胱癌的ROC曲线下面积(AUC ROC)分别为0.729、0.743、0.733和0.825。基于训练集Logistic回归分析结构建立膀胱癌术后复发的风险预测列线图模型,该模型预测训练集、验证集的敏感性分别为94.12%、90.20%,特异性分别为90.06%、87.29%,AUC ROC分别为0.940、0.914;Bootstrap法内部验证结果显示,训练集、验证集的C-index分别为0.918(95%CI:0.824~0.987)、0.901(95%CI:0.835~0.957)。结论术前血清IL-6、PGE2、TNF-α水平是膀胱癌术后复发的影响因素,据此建立的风险预测列线图模型具有良好的预测效能。展开更多
文摘Background: Tuberculosis (TB) is one of the top lethal infectious diseases worldwide. In recent years, interferon-γ (INF-γ) release assays (IGRAs) have been established as routine tests for diagnosing TB infection. However, produced INF-γ assessment cannot permit to distinguish active ATB from latent TB infection (LTBI), especially in TB epidemic areas. In addition to IFN-γ, interleukin-2 (IL-2), secreted by activated T cells, is involved in immune response against Mycobacterium tuberculosis. This could be involved in the follow up of treatment response. The aim of our study was to determine IFN-γ and IL2 cytokines profiles of patients under antituberculosis treatment. Materials and Methods: A six months’ cross-sectional study was conducted at the Jamot Hospital of Yaoundé, from May to August 2021. Sociodemographic and clinical data as well as 5 mL of blood were collected from each participant. INF-γ and IL-2 were determined using indirect Enzyme linked Immuno-Sorbent Assay (ELISA) according to the manufacturer’s recommendations and spectrum exam in combination with radiography and GeneXpert were used as standard. P-values Results: The results showed that men were more infected 14/61 (31.8%) with a high presence in active and resistant TB groups. The mean age was 41.3 ± 13.1 years with a 95% CI = [38.2 - 44.7], the age group with the highest infection rate was ranged between 31 and 40 years. The IL-2 and INF-γ means were respectively 327.6 ± 160.6 pg/mL and 26.6 ± 13.0 pg/mL in ATB patients, 251.1 ± 30.9 pg/mL and 21.4 ± 9.2 pg/mL in patients with resistant tuberculosis, while it was 149.3 ± 93.3 pg/mL and 17.9 ± 9.4 pg/mL in cured patients, 15.1 ± 8.4 pg/mL and 5.3 ± 2.6 pg/mL in participants presumed healthy (p γ and IL-2rates were observed between the different groups. Conclusion: Monitoring the serum levels of INF-γ and IL-2 would be useful for the follow-up of anti-tuberculosis patients, particularly in the both cytokines association case.
文摘目的基于术前血清IL-6、前列腺素E2(PGE2)、TNF-α构建预测膀胱癌术后复发的列线图模型。方法回顾性收集2018年6月至2023年2月临平区第一人民医院收治的348例膀胱癌患者的临床资料,经计算机产生随机数表并以2∶1比例将其分为训练集(232例)和验证集(116例)。所有患者均接受随访,将发生复发的患者纳入复发组,未发生复发的患者纳入未复发组。比较训练集复发组、未复发组血清IL-6、PGE2、TNF-α水平及一般资料;用Logistic回归模型分析训练集膀胱癌术后复发的影响因素,并建立回归方程;用ROC曲线分析术前IL-6、PGE2、TNF-α单独及联合预测膀胱癌术后复发的效能;建立膀胱癌术后复发的风险预测列线图模型,并验证其效能。结果与未复发组比较,复发组血清IL-6、PGE2、TNF-α水平升高,肿瘤直径增大,多发性肿瘤、肿瘤分期T 2~T 4、肿瘤WHO病理学分级Ⅱ~Ⅲ级的构成比升高,术后规律膀胱灌注的构成比降低(P<0.05)。Logistic回归分析显示,术前血清IL-6、PGE2、TNF-α、肿瘤分期、肿瘤WHO病理学分级是膀胱癌术后复发的影响因素(P<0.05),并建立Logistic回归方程:Y=1.718 X 1+2.081 X 2+1.815 X 3+2.319 X 4+1.868 X 5。ROC曲线显示,术前IL-6、PGE2、TNF-α预测膀胱癌术后复发的最佳截断点分别为0.60 ng/L、57.13 pg/mL、2.10 ng/mL,三者单独及联合预测膀胱癌的ROC曲线下面积(AUC ROC)分别为0.729、0.743、0.733和0.825。基于训练集Logistic回归分析结构建立膀胱癌术后复发的风险预测列线图模型,该模型预测训练集、验证集的敏感性分别为94.12%、90.20%,特异性分别为90.06%、87.29%,AUC ROC分别为0.940、0.914;Bootstrap法内部验证结果显示,训练集、验证集的C-index分别为0.918(95%CI:0.824~0.987)、0.901(95%CI:0.835~0.957)。结论术前血清IL-6、PGE2、TNF-α水平是膀胱癌术后复发的影响因素,据此建立的风险预测列线图模型具有良好的预测效能。
