receiver operating characteristic curve

接收机工作特性曲线
  • 文章类型: Journal Article
    精神障碍通常与成人发作的孤立性肌张力障碍(AOID)有关;然而,AOID精神病异常的潜在机制尚不清楚.我们的目的是调查AOID焦虑症患者的结构和功能变化,并确定诊断焦虑症的成像生物标志物。对69例AOID患者和35例健康对照(HC)进行了结构和功能磁共振。汉密尔顿焦虑量表(HAMA)用于评估AOID患者的焦虑症状,并将患者分为有和无焦虑的AOID组。灰质体积的群体差异,低频波动幅度(ALFF),分数ALFF,并对区域同质性(ReHo)进行了评价。受试者工作特征曲线下面积(ROCAUC)用作鉴定用于诊断焦虑的成像生物标志物的度量。患有焦虑症的AOID患者左角回的ALFF和ReHo增加(ANG。L)与没有和HC的人相比(体素P<0.001和聚类P<0.05,使用GRF校正)。在ANG中,ALFF(r=0.627,P<0.001)和ReHo(r=0.515,P<0.001)之间观察到显着正相关。AOID患者的L和HAMA评分。ALFF和ReHo在ANG。L的ROCAUC分别为0.904和0.851,在区分有焦虑的AOID患者与无焦虑的患者以及ROCAUC分别为0.887和0.853时,在区分AOID患者焦虑和HCs方面。这些发现为精神障碍的病理生理学提供了新的见解,并突出了用于识别AOID患者焦虑的潜在候选生物标志物。
    Psychiatric disturbances are commonly associated with adult-onset isolated dystonia (AOID); however, the mechanisms underlying psychiatric abnormalities in AOID remain unknown. We aimed to investigate the structural and functional brain changes in AOID patients with anxiety, and identify imaging biomarkers for diagnosing anxiety. Structural and functional magnetic resonance was performed on 69 AOID patients and 35 healthy controls (HCs). The Hamilton Anxiety Scale (HAMA) was used to assess anxiety symptoms in AOID patients and assign patients to AOID with and without anxiety groups. Group differences in grey matter volume, amplitude of low-frequency fluctuations (ALFF), fractional ALFF, and regional homogeneity (ReHo) were evaluated. Area under the receiver operating characteristic curve (ROC AUC) was used as a metric to identify imaging biomarkers for diagnosing anxiety. AOID patients with anxiety exhibited an increased ALFF and ReHo in the left angular gyrus (ANG.L) compared with those without and HCs (voxel P<0.001 and cluster P<0.05, corrected using GRF). A significant positive correlation was observed between ALFF (r = 0.627, P<0.001) and ReHo (r = 0.515, P<0.001) in the ANG.L and HAMA scores in AOID patients. ALFF and ReHo in the ANG.L exhibited an ROC AUC of 0.904 and 0.851, respectively, in distinguishing AOID patients with anxiety from those without and an ROC AUC of 0.887 and 0.853, respectively, in distinguishing AOID patients with anxiety from HCs. These findings provide new insights into the pathophysiology of psychiatric disturbances and highlight potential candidate biomarkers for identifying anxiety in AOID patients.
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  • 文章类型: Journal Article
    目的:过敏性鼻炎(AR)是全球范围内日益严重的公共卫生问题。尊重改良的Lund-Kennedy(MLK)评分在鼻炎评估中的意义,我们探讨了其对AR患者舌下免疫治疗(SLIT)疗效的评估价值。
    方法:共纳入100例AR患者,加上SLIT前和后MLK分数,鼻部症状总评分(TNSS),药物治疗总评分(TMS),视觉模拟量表(VAS),炎性细胞因子,与免疫功能相关的参数进行比较。MLK评分与TNSS/TMS/VAS的相关性,以及IL-4/INF-γ/嗜酸性粒细胞(EOS)/百分比/特异性免疫球蛋白(sIgE)/sIgG通过Spearman相关性分析进行评估。分析MLK评分对评估AR患者SLIT疗效的价值。
    结果:SLIT治疗降低了MLK/TNSS/TMS/VAS评分,降低IL-4水平/EOS百分比/sIgE,INF-γ/sIgG水平升高。MLK评分与SLIT前后TNSS评分呈正相关(rpre-treatment=0.592,rpost-treatment=0.756),TMS评分(治疗前=0.385,治疗后=0.718),VAS评分(治疗前=0.369,治疗后=0.704),IL-4(rpre-treatment=0.553,rpost-treatment=0.639),EOS百分比(rpre-treatment=0.511,rpost-treatment=0.632),和sIgE(rpre-treatment=0.472,rpost-treatment=0.524),INF-γ(rpre-treatment=-0.418,rpost-treatment=-0.578)和sIgG4(rpre-treatment=-0.460,rpost-treatment=-0.613)呈阴性。MLK评分的曲线下面积为0.846(敏感性为77.01%,76.92%的特异性,4截止值)和0.944(灵敏度91.67%,92.11%的特异性,2截止值)用于评估SLIT治疗对患者有效和显着有效,分别。
    结论:MLK评分对AR患者SLIT治疗的疗效有较好的评价价值。
    OBJECTIVE: Allergic rhinitis (AR) is a growing public health problem worldwide. Respecting the significance of the modified Lund-Kennedy (MLK) score in rhinitis assessment, we delved into its evaluation value on the sublingual immunotherapy (SLIT) efficacy in AR patients.
    METHODS: Totally 100 AR patients were enrolled, with pre- and post-SLIT MLK score, total nasal symptoms score (TNSS), total medication score (TMS), visual analogue scale (VAS), inflammatory cytokines, and immune function-related parameters compared. The correlations of MLK score with TNSS/TMS/VAS, as well as with IL-4/INF-γ/eosinophil (EOS)/percentage/specific immunoglobulin (sIgE)/sIgG were assessed by Spearman correlation analysis. The value of MLK score on assessing SLIT efficacy in AR patients was analyzed.
    RESULTS: SLIT treatment reduced MLK/TNSS/TMS/VAS scores, abated IL-4 level/EOS percentage/sIgE, and elevated INF-γ/sIgG levels. MLK score was positively correlated with pre- and post-SLIT TNSS score (rpre-treatment = 0.592, rpost-treatment = 0.756), TMS score (rpre-treatment = 0.385, rpost-treatment = 0.718), VAS score (rpre-treatment = 0.369, rpost-treatment = 0.704), IL-4 (rpre-treatment = 0.553, rpost-treatment = 0.639), EOS percentage (rpre-treatment = 0.511, rpost-treatment = 0.632), and sIgE (rpre-treatment = 0.472, rpost-treatment = 0.524), and negatively with INF-γ (rpre-treatment = -0.418, rpost-treatment = -0.578) and sIgG4 (rpre-treatment = -0.460, rpost-treatment = -0.613). The MLK score had an area under curve of 0.846 (77.01% sensitivity, 76.92% specificity, 4 cut-off value) and 0.944 (91.67% sensitivity, 92.11% specificity, 2 cut-off value) for assessing SLIT treatment as effective and markedly effective for the patients, respectively.
    CONCLUSIONS: The MLK score had good evaluation value on the efficacy of SLIT treatment in AR patients.
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  • 文章类型: Journal Article
    背景:早发冠状动脉疾病(PCAD)普遍存在。目的探讨血浆致动脉粥样硬化指数(AIP)和超敏C反应蛋白(hs-CRP)对PCAD患者冠状动脉病变发生及严重程度的评估价值。
    方法:纳入PCAD(PACD组)/非PCAD(对照组)患者。采用Gensini评分(GS)评价冠状动脉病变程度。将PCAD患者分为低/中/高GS组,分析一般临床基线数据。比较不同程度PCAD患者血浆hs-CRP/AIP水平。血浆hs-CRP/AIP与Gensini评分的相关性,影响PCAD发生的独立危险因素,采用Spearman相关分析/Logistic多元回归/受试者工作特征(ROC)曲线评价hs-CRP/AIP/组合对PCAD发生及程度的预测价值。使用MedCalc-比较ROC曲线比较曲线下面积(AUC)的差异。
    结果:PCAD组血浆hs-CRP/AIP水平升高。不同程度PCAD患者血浆hs-CRP/AIP水平存在显著差异。血浆hs-CRP/AIP水平与Gensini评分呈显著正相关。吸烟史/同型半胱氨酸/空腹血糖/hs-CRP/AIP均为影响PCAD发生的独立危险因素。hs-CRP和AIP联合预测PCAD发生的AUC为0.950(90.80%敏感性/93.33%特异性)。hs-CRP/AIP联合应用有助于预测PCAD患者的病情程度.
    结论:AIP和hs-CRP是PCAD发生的独立危险因素。两者联合对PCAD的发生和疾病程度有较高的预测价值,两者均与冠状动脉病变程度呈正相关。
    BACKGROUND: Premature coronary artery disease (PCAD) is prevailing. We aimed to investigate the evaluation value of atherogenic index of plasma (AIP) and high-sensitivity C-reactive protein (hs-CRP) for the occurrence and severity of coronary artery lesion in PCAD patients.
    METHODS: PCAD (PACD group)/non-PCAD (control group) patients were enrolled. The coronary artery lesion degree was evaluated using Gensini score (GS). PCAD patients were allocated into the low/medium/high GS groups, with general clinical baseline data analyzed. Plasma hs-CRP/AIP levels were compared in PCAD patients with different disease degree. Correlations between plasma hs-CRP/AIP with Gensini score, independent risk factors affecting the occurrence of PCAD, and the predictive value of hs-CRP/AIP/their combination for the occurrence and degree of PCAD were evaluated by Spearman correlation analysis/Logistic multivariate regression/receiver operating characteristic (ROC) curve. The differences in the area under the curve (AUC) were compared using MedCalc-Comparison of ROC curves.
    RESULTS: Plasma hs-CRP/AIP levels in the PCAD group were increased. Plasma hs-CRP/AIP levels varied significantly among PCAD patients with different disease degree. Plasma hs-CRP/AIP levels were markedly positively correlated with the Gensini score. Smoking history/homocysteine/fasting blood-glucose/hs-CRP/AIP were all independent risk factors affecting PCAD occurrence. The AUC of hs-CRP and AIP combination predicting the occurrence of PCAD was 0.950 (90.80% sensitivity/93.33% specificity). hs-CRP/AIP combination assisted in predicting the disease degree in PCAD patients.
    CONCLUSIONS: AIP and hs-CRP are independent risk factors for the occurrence of PCAD, and their combination has high predictive value for PCAD occurrence and disease degree, which are both positively correlated with coronary artery lesion degree.
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  • 文章类型: Journal Article
    背景:结直肠癌(CRC)是临床上普遍存在的癌症类型;其早期症状可能难以检测,这通常会导致许多患者的晚期诊断。早期发现和诊断CRC对于提高治疗成功率和患者生存率至关重要。最近,成像技术被认为是必不可少的管理CRC,磁共振成像(MRI)和螺旋计算机断层扫描(SCT)在增强诊断和治疗方法中起着重要作用。
    目的:探讨MRI和SCT在结直肠癌术前分期及腹腔镜治疗预后中的应用价值。
    方法:厦门大学附属中山医院95例患者行MRI和SCT检查,确诊为CRC。评估MRI和SCT对CRC术前分类的准确性,病理分期作为参考。受试者工作特征曲线用于评价血容量的诊断效能,血流量,时间达到顶峰,渗透表面,血液回流常数,体积传递常数,和细胞外血管外空间体积分数对CRC患者预后的影响。
    结果:病理活检证实了以下CRC阶段:T1、T2、T3和T4分别为23、23、32和17。N0期39例,N1为22,N2为34,M0级为44,M1为51。以病理结果为基准,联合使用MRI和SCT对CRC患者术前TNM分期表现出优越的敏感性,特异性,与任何一种单独的模态相比,准确性差异有统计学意义(P<0.05)。受试者工作特征曲线分析揭示了腹腔镜治疗预后的预测价值,如血容量曲线下的面积所示,血流量,时间达到顶峰,和渗透性表面,血液回流常数,体积传递常数,细胞外血管间隙体积分数分别为0.750、0.683、0.772、0.761、0.709、0.719和0.910。还获得了相应的敏感性和特异性值(P<0.05)。
    结论:MRI联合SCT对CRC患者的临床诊断有效,值得临床推广。
    BACKGROUND: Colorectal cancer (CRC) is a prevalent cancer type in clinical settings; its early signs can be difficult to detect, which often results in late-stage diagnoses in many patients. The early detection and diagnosis of CRC are crucial for improving treatment success and patient survival rates. Recently, imaging techniques have been hypothesized to be essential in managing CRC, with magnetic resonance imaging (MRI) and spiral computed tomography (SCT) playing a significant role in enhancing diagnostic and treatment approaches.
    OBJECTIVE: To explore the effectiveness of MRI and SCT in the preoperative staging of CRC and the prognosis of laparoscopic treatment.
    METHODS: Ninety-five individuals admitted to Zhongshan Hospital Xiamen University underwent MRI and SCT and were diagnosed with CRC. The precision of MRI and SCT for the presurgical classification of CRC was assessed, and pathological staging was used as a reference. Receiver operating characteristic curves were used to evaluate the diagnostic efficacy of blood volume, blood flow, time to peak, permeability surface, blood reflux constant, volume transfer constant, and extracellular extravascular space volume fraction on the prognosis of patients with CRC.
    RESULTS: Pathological biopsies confirmed the following CRC stages: 23, 23, 32, and 17 at T1, T2, T3, and T4, respectively. There were 39 cases at the N0 stage, 22 at N1, 34 at N2, 44 at M0 stage, and 51 at M1. Using pathological findings as the benchmark, the combined use of MRI and SCT for preoperative TNM staging in patients with CRC demonstrated superior sensitivity, specificity, and accuracy compared with either modality alone, with a statistically significant difference in accuracy (P < 0.05). Receiver operating characteristic curve analysis revealed the predictive values for laparoscopic treatment prognosis, as indicated by the areas under the curve for blood volume, blood flow, time to peak, and permeability surface, blood reflux constant, volume transfer constant, and extracellular extravascular space volume fraction were 0.750, 0.683, 0.772, 0.761, 0.709, 0.719, and 0.910, respectively. The corresponding sensitivity and specificity values were also obtained (P < 0.05).
    CONCLUSIONS: MRI with SCT is effective in the clinical diagnosis of patients with CRC and is worthy of clinical promotion.
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  • 文章类型: Journal Article
    背景:开发并评估胸外科全麻期间多尿的预测列线图。
    方法:设计并进行了一项回顾性研究。整个数据集用于开发预测列线图,并使用逐步算法筛选变量。逐步算法基于Akaike的信息准则(AIC)。使用多变量逻辑回归分析来建立列线图。采用受试者工作特征(ROC)曲线评价模型的辨别能力。进行Hosmer-Lemeshow(HL)测试以检查模型是否校准良好。进行决策曲线分析(DCA)以测量列线图的临床有用性和净获益。P<0.05被认为表示有统计学意义。
    结果:样本包括529名接受过胸外科手术的受试者。芬太尼的使用,性别,入院时和手术前的平均动脉压之间的差异,操作类型,输血的液体和血液制品总量,失血,血管加压药,和顺式阿曲库铵的使用被确定为预测因子,并被纳入列线图。列线图在接收器工作特性曲线(0.6937)上显示出良好的辨别能力,并且使用Hosmer-Lemeshow测试进行了很好的校准。决策曲线分析表明,列线图在临床上有用。
    结论:术中多尿的个体化和精确预测允许更好的麻醉管理和早期预防优化。
    BACKGROUND: To develop and evaluate a predictive nomogram for polyuria during general anesthesia in thoracic surgery.
    METHODS: A retrospective study was designed and performed. The whole dataset was used to develop the predictive nomogram and used a stepwise algorithm to screen variables. The stepwise algorithm was based on Akaike\'s information criterion (AIC). Multivariable logistic regression analysis was used to develop the nomogram. The receiver operating characteristic (ROC) curve was used to evaluate the model\'s discrimination ability. The Hosmer-Lemeshow (HL) test was performed to check if the model was well calibrated. Decision curve analysis (DCA) was performed to measure the nomogram\'s clinical usefulness and net benefits. P < 0.05 was considered to indicate statistical significance.
    RESULTS: The sample included 529 subjects who had undergone thoracic surgery. Fentanyl use, gender, the difference between mean arterial pressure at admission and before the operation, operation type, total amount of fluids and blood products transfused, blood loss, vasopressor, and cisatracurium use were identified as predictors and incorporated into the nomogram. The nomogram showed good discrimination ability on the receiver operating characteristic curve (0.6937) and is well calibrated using the Hosmer-Lemeshow test. Decision curve analysis demonstrated that the nomogram was clinically useful.
    CONCLUSIONS: Individualized and precise prediction of intraoperative polyuria allows for better anesthesia management and early prevention optimization.
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  • 文章类型: English Abstract
    本研究旨在调查华西情绪指数(HEI)和护士自杀风险全球评估(NGASR)在评估高自杀风险方面的一致性,并探讨HEI在识别抑郁症患者高自杀风险方面的预测价值。
    使用方便抽样,386名抑郁症住院患者纳入了这项横断面研究。所有病人均入住精神卫生中心,2023年6月至12月华西医院。纳入标准如下,根据国际疾病分类,抑郁症的诊断,第十次修订(ICD-10),年龄在18岁以上,完成NGASR和HEI评估。根据排除标准,患有其他合并症精神障碍或患有严重认知障碍且无法有效沟通的抑郁症患者被排除在外.本研究获得华西医院生物医学伦理审查委员会批准(批准号647,2021)。人口统计数据,如年龄,性别,种族,婚姻状况,和教育程度是使用自行设计的问卷收集的。HEI和NGASR均用于评估患者。我们用SPSS27进行了统计分析,采用Spearman的秩相关进行相关分析,Kappa测试两种仪器之间的一致性,和受试者工作特征(ROC)曲线,用于评估高自杀风险的HEI分数的预测性能,根据尤登指数确定的最佳HEI截止值。
    该研究包括386名抑郁症住院患者,平均年龄为32岁,平均住院时间为14天。在这些参与者中,252名女性(65.3%),134名男性(34.7%)。关于种族,大多数参与者是汉族(89.4%),藏人占7.3%,和其他少数民族,3.3%。关于婚姻状况,51.3%的参与者已婚,41.2%单,6.5%离婚,和1.0%丧偶。关于教育程度,26.2%有本科或研究生学历,20.7%有大专学历,24.8%的人受过高中或中等技校教育,28.2%的中学文化程度或以下。NGASR确定57.3%的参与者处于高自杀风险中,而HEI认为53.6%的人有严重的情绪困扰。HEI和NGASR分数之间有适度的一致性,Kappa值为0.518(P<0.001),表明统计学上的显著差异。在HEI得分为17分时,Youden指数达到0.52的峰值,预测自杀风险高,特异性为76.36%,灵敏度为76.02%,ROC曲线下面积为0.829(95%CI:0.787-0.871),显示出统计学上的显著差异。
    HEI和NGASR在评估抑郁症患者的高自杀风险方面表现出适度的一致性。HEI问卷可有效预测抑郁症患者的高自杀风险,17是评估高自杀风险的最佳临界值。
    UNASSIGNED: This study aims to investigate the agreement between the Huaxi Emotional Index (HEI) and the Nurses\' Global Assessment of Suicide Risk (NGASR) in assessing high suicide risk and to explore the predictive value of HEI in identifying high suicide risk among patients with depression.
    UNASSIGNED: Convenience sampling was used and 386 inpatients with depression were included in this cross-sectional study. All patients were admitted to the Mental Health Center, West China Hospital between June and December 2023. The inclusion criteria were as follows, a diagnosis of depression according to the International Classification of Diseases, Tenth Revision (ICD-10), age over 18, and completion of both NGASR and HEI assessments. According to the exclusion criteria, depression patients who had other comorbid mental disorders or those who had severe cognitive impairments and were unable to communicate effectively were excluded. The study was approved by the Biomedical Ethics Review Committee of West China Hospital (Approval No. 647, 2021). Demographic data such as age, sex, ethnicity, marital status, and educational attainment were collected using a self-designed questionnaire. Both the HEI and NGASR were applied to evaluate the patients. We conducted statistical analyses with SPSS 27, employing Spearman\'s rank correlation for correlation analysis, Kappa tests for consistency between the two instruments, and receiver operating characteristic (ROC) curves for evaluating the predictive performance of HEI scores for high suicide risk, with the optimal HEI cutoff value determined on the basis of the Youden Index.
    UNASSIGNED: The study included 386 depression inpatients with an average age of 32 years and an average length-of-stay of 14 days. Of these participants, 252 were female (65.3%) and 134 were male (34.7%). Regarding ethnicity, most of the participants were Han Chinese (89.4%), Tibetans accounted for 7.3%, and other minorities, 3.3%. Regarding marital status, 51.3% of the participants were married, 41.2% single, 6.5% divorced, and 1.0% widowed. Regarding educational attainment, 26.2% had an undergraduate or graduate education, 20.7% had junior college education, 24.8% had high school or secondary technical school education, and 28.2% had middle school education or less. The NGASR identified 57.3% of the participants as being at high suicide risk, while the HEI identified 53.6% as having severe emotional distress. There was a moderate agreement between the HEI and the NGASR scores, with a Kappa value of 0.518 ( P<0.001), indicating statistically significant differences. At an HEI score of 17, the Youden Index peaked at 0.52, predicting high suicide risk with a specificity of 76.36%, a sensitivity of 76.02%, and an area under the ROC curve of 0.829 (95% CI: 0.787-0.871), demonstrating statistically significant differences.
    UNASSIGNED: HEI and NGASR demonstrate moderate agreement in assessing high suicide risk among depression patients. The HEI questionnaire effectively predicts high suicide risk in patients with depression, with 17 being the optimal cutoff value for assessing high suicide risk.
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  • 文章类型: Journal Article
    目的:本研究旨在评估抗体浓度比在鉴定难治性重症肌无力(MG)方面的诊断潜力。
    方法:对2015年6月1日至2023年6月1日期间至少两次接受抗体检测的116例MG患者进行了回顾性分析。对人口统计学和临床特征进行了整理,以确定它们与难治性MG的关系。抗体浓度比用于确定治疗反应,使用国际共识指导标准作为参考标准。非参数接收器工作特性曲线下面积(AUC),灵敏度,特异性,计算和准确性,以评估连续免疫疗法后抗体浓度比相对于难治性MG初始抗体浓度的诊断功效。
    结果:116例患者中有19例明确诊断为难治性MG。在治疗难治性和治疗响应性患者中,抗体浓度比与难治性MG状态之间存在显着相关性。随后,AUC证明了抗体浓度比对难治性MG的强大诊断能力,AUC为0.8709(95%CI:0.7995-0.9422,p<0.0001)。最佳临界值为0.8903,灵敏度为94.74%(95%CI:75.36%-99.73%),特异性为68.04%(95%CI:58.23%-76.48%),准确率为72.41%(95%CI:64.28%-80.54%)。
    结论:升高的抗体浓度比与难治性MG内在相关,并显示出作为该病症的诊断生物标志物的潜力。
    OBJECTIVE: This study aimed to assess the diagnostic potential of the Antibody concentration ratio in identifying treatment-refractory myasthenia gravis (MG).
    METHODS: A retrospective analysis was conducted on 116 MG patients who underwent antibody detection at least twice between June 1, 2015, and June 1, 2023. Demographic and clinical characteristics were collated to ascertain their association with refractory MG. The Antibody Concentration Ratio was applied to determine treatment response, using the International Consensus Guidance criteria as the reference standard. The area under nonparametric receiver operating characteristic curve (AUC), sensitivity, specificity, and accuracy were calculated to assess the diagnostic efficacy of the Antibody concentration ratio following consecutive immunotherapy relative to initial antibody concentrations for refractory MG.
    RESULTS: 19 out of 116 patients were unequivocally diagnosed with refractory MG. A significant correlation was found between the Antibody Concentration Ratio and refractory MG status in treatment-refractory and treatment-responsive patients. Subsequently, the AUC demonstrated the robust diagnostic capability of the Antibody concentration ratio for refractory MG, with an AUC of 0.8709 (95% CI: 0.7995-0.9422, p < 0.0001). The optimal cut-off value stood at 0.8903, exhibiting a sensitivity of 94.74% (95% CI: 75.36%-99.73%), a specificity of 68.04% (95% CI: 58.23%-76.48%), and accuracy of 72.41% (95% CI: 64.28%-80.54%).
    CONCLUSIONS: Elevated Antibody Concentration Ratio is intrinsically linked with refractory MG and exhibits potential as an diagnostic biomarker for the condition.
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  • 文章类型: Journal Article
    抑郁症是一种严重的精神疾病,给老年人的生活带来极大的不便。然而,抑郁症的诊断有些主观。使用非靶向气相色谱(GC)/液相色谱(LC)-质谱(MS)研究血浆代谢谱,并确定抑郁症和代谢途径变异的客观标志物。我们招募了379名年龄≥65岁的中国社区居民。收集血浆样品并通过GC/LC-MS进行检测。利用正交偏最小二乘判别分析和热图来区分代谢物。构建受试者工作特征曲线以评估这些差异代谢物的诊断价值。此外,进行代谢途径富集以揭示代谢途径的变异.根据我们的标准,49人被纳入抑郁症队列(DC),年龄和性别匹配的49人纳入非抑郁队列(NDC).通过GC-MS鉴定的64种代谢物和通过LC-MS鉴定的73种代谢物对DC和NDC之间的区别有重要贡献,VIP值>1且p值<0.05。两种方法都检测了三种物质:次黄嘌呤,植物鞘氨醇,还有黄嘌呤.此外,1-(sn-甘油-3-磷酸)-1D-肌醇具有最大的曲线下面积(AUC)值(AUC=0.842)。嘌呤代谢途径是代谢途径中最重要的改变。这些发现表明,抑郁症队列和非抑郁症队列之间的血浆代谢物存在差异。这些鉴定的差异代谢物可能是抑郁症的标志物,可用于研究抑郁症代谢途径的变化。
    Depression is a serious psychiatric illness that causes great inconvenience to the lives of elderly individuals. However, the diagnosis of depression is somewhat subjective. Nontargeted gas chromatography (GC)/liquid chromatography (LC)-mass spectrometry (MS) was used to study the plasma metabolic profile and identify objective markers for depression and metabolic pathway variation. We recruited 379 Chinese community-dwelling individuals aged ≥ 65. Plasma samples were collected and detected by GC/LC‒MS. Orthogonal partial least squares discriminant analysis and a heatmap were utilized to distinguish the metabolites. Receiver operating characteristic curves were constructed to evaluate the diagnostic value of these differential metabolites. Additionally, metabolic pathway enrichment was performed to reveal metabolic pathway variation. According to our standard, 49 people were included in the depression cohort (DC), and 49 people age- and sex-matched individuals were included in the non-depression cohort (NDC). 64 metabolites identified via GC‒MS and 73 metabolites identified via LC‒MS had significant contributions to the differentiation between the DC and NDC, with VIP values > 1 and p values < 0.05. Three substances were detected by both methods: hypoxanthine, phytosphingosine, and xanthine. Furthermore, 1-(sn-glycero-3-phospho)-1D-myo-inositol had the largest area under the curve (AUC) value (AUC = 0.842). The purine metabolic pathway is the most important change in metabolic pathways. These findings show that there were differences in plasma metabolites between the depression cohort and the non-depression cohort. These identified differential metabolites may be markers of depression and can be used to study the changes in depression metabolic pathways.
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  • 文章类型: English Abstract
    目的:探讨中国成年居民大量营养素摄入能量百分比与肥胖的关系。并分析预测肥胖的大量营养素的临界值。
    方法:收集1991-2018年中国健康与营养调查(CHNS)数据。选择参加至少两波调查且基线时不肥胖的成年人作为研究对象。肥胖定义为体重指数(BMI)≥28.0kg/m~2。采用广义估计方程分析了大量营养素的能量摄入百分比与BMI和肥胖之间的关系。和受试者工作特征曲线(ROC)用于分析来自大量营养素的能量摄入百分比的临界值,以预测肥胖。
    结果:中国15个省(区、市)成年居民从蛋白质和脂肪中摄取能量的百分比呈增加趋势(P<0.01),1991年至2018年碳水化合物能量摄入百分比呈下降趋势(P<0.01)。在调整协变量后,脂肪能量摄入百分比在20%~30%(β=0.05,95CI0.01~0.08)和≥30%(β=0.15,95CI0.11~0.18)与BMI与脂肪能量摄入百分比<20%,20%-30%和≥30%的肥胖风险增加了17%(OR=1.17,95CI1.04-1.31)和6%(OR=1.06,95CI1.24-1.56),分别。与碳水化合物的能量摄入百分比相比,50%,50%~65%(β=-0.08,95%CI-0.11--0.05)和≥65%(β=-0.17,95CI-0.20--0.13)与BMI呈负相关,碳水化合物能量摄入百分比≥65%可降低肥胖风险(OR=0.71,95CI0.63-0.80).
    结论:碳水化合物摄入量与肥胖风险呈负相关,脂肪摄入量与肥胖风险呈正相关。适度摄入碳水化合物和减少脂肪摄入可以预防肥胖。
    OBJECTIVE: To explore the relationship between the percentage of energy intake from macronutrients and obesity in Chinese adult residents, and analyze the cut-off values of macronutrients for predicting obesity.
    METHODS: Data was collected in China Health and Nutrition Survey(CHNS)in 1991-2018. Adults who participated in at least two waves of the surveys and were not obese at baseline were selected as the study subjects. Obesity was defined as body mass index(BMI)≥28.0 kg/m~2. Generalized estimating equation was used to analyze the relationship between the percentage of energy intake from macronutrients and BMI and obesity, and receiver operating characteristic curve(ROC) was used to analyze the cut-off values of percentage of energy intake from macronutrients to predict obesity.
    RESULTS: The percentage of energy intake from protein and fat of adult residents in 15 provinces(autonomous regions and municipalities) in China showed an increasing trend(P<0.01), and the percentage of energy intake from carbohydrate showed a decreasing trend(P<0.01) between 1991 and 2018. After adjusting for covariates, the group of percentage of energy intake from fat in 20%~30%(β=0.05, 95%CI 0.01-0.08)and ≥30%(β=0.15, 95%CI 0.11-0.18)were positively correlated with BMI compared with the group of percentage of energy intake from fat <20%, and the risk of obesity in 20%-30% and ≥ 30% was increased by 17%(OR=1.17, 95%CI 1.04-1.31)and 6%(OR=1.06, 95%CI 1.24-1.56), respectively. Compared with the group of the percentage of energy intake from carbohydrate < 50%, the group of 50% to 65%(β=-0.08, 95% CI-0.11--0.05) and ≥ 65%(β=-0.17, 95%CI-0.20--0.13) was negatively correlated with BMI, and the percentage of energy intake from carbohydrate ≥ 65% reduced the risk of obesity(OR=0.71, 95%CI 0.63-0.80).
    CONCLUSIONS: Carbohydrate intake was inversely correlated with the risk of obesity, and fat intake was positively correlated with the risk of obesity. Moderate intake of carbohydrates and reduced fat intake can prevent obesity.
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  • 文章类型: Journal Article
    研究梅毒不同阶段中性粒细胞CD64(nCD64)指数与神经梅毒(NS)的相关性。
    共有1243名不同阶段的梅毒患者(原发性,385次,本研究中包含的514个三级)分为NS和非NS(NNS)。使用Spearman相关性检验探讨nCD64指数与目前使用的梅毒生物标志物的相关性。通过分层分析和有限三次样条模型研究了nCD64指数与不同阶段NS的关系。通过受试者工作特征(ROC)曲线评估nCD64指数对NS的诊断性能。
    在二级和三级梅毒中发现nCD64指数与脑脊液(CSF)NS指标的显着统计相关性。nCD64指数升高与二期和三期梅毒NS风险增加相关。ROC分析值进一步证实了nCD64指数对NS的诊断潜力。在有效的抗梅毒治疗后,NS患者中观察到nCD64指数显着下降。
    nCD64指数可能有助于诊断二期和三期梅毒中的NS。
    UNASSIGNED: To examine the correlation of neutrophil CD64 (nCD64) index with neurosyphilis (NS) across different stages of syphilis.
    UNASSIGNED: A total of 1243 syphilis patients at different stages (344 of primary, 385 of secondary, and 514 of tertiary) included in this study were divided into NS and non-NS (NNS). Correlations of nCD64 index with currently used syphilis biomarkers were explored using Spearman correlation test. Relationships between nCD64 index and NS at different stages were investigated by stratified analysis and restricted cubic spline model. The diagnostic performance of nCD64 index for NS was assessed by receiver operating characteristic (ROC) curve.
    UNASSIGNED: Significant statistical correlations of nCD64 index with cerebrospinal fluid (CSF) NS indicators were found in secondary and tertiary syphilis. Increased nCD64 index was associated with increased risk of NS in secondary and tertiary syphilis. ROC analysis values further confirmed the diagnostic potential of nCD64 index for NS. Marked decrease of nCD64 index was observed in NS patients after effective antisyphilitic treatments.
    UNASSIGNED: The nCD64 index may help to the diagnosis of NS in secondary and tertiary syphilis.
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