early detection of cancer

癌症的早期检测
  • 文章类型: Journal Article
    目的:在本研究中,我们的目的是验证PAX1和JAM3甲基化(PAX1m/JAM3m)检测在非16/18高危人类乳头瘤病毒阳性患者(非16/18hrHPV+)中作为检测宫颈上皮内瘤变3级或更高级别(CIN3+)的分诊工具的性能.
    方法:比较了液基细胞学(LBC)和PAX1m/JAM3m试验检测CIN3的分诊性能。
    结果:总计,1851名参与者有宫颈组织学结局,并纳入分析。LBC检测结果对意义不明确或更差的非典型鳞状细胞(LBC≥ASCUS)和PAX1m/JAM3m检测的敏感性/特异性分别为90.1%/26.7%和84.8%/88.5%,分别。PAX1m/JAM3m(+)在整个队列中具有最高的诊断AUC(0.866,95%置信区间(CI)0.837-0.896)。所有癌症(n=20)均通过PAX1m/JAM3m(+)检测。与LBC≥ASCUS相比,PAX1m/JAM3m()使需要转诊进行阴道镜检查的患者人数减少了57.21%(74.66%vs.17.45%)。LBC≥ASCUS和PAX1m/JAM3m(+)检测CIN3+的比值比为3.3(95%CI2.0-5.9)和42.6(27.1-69.6),分别(p<0.001)。LBC≥ASCUS或PAX1m/JAM3m(+)的组合略微增加了诊断灵敏度(98.0%,95%CI:95.8-100%)和转诊率(77.09%),但降低了诊断特异性(24.8%,22.7-26.8%)。
    结论:在非16/18hrHPV(+)女性中,PAX1m/JAM3m检测CIN3+优于细胞学。与LBC≥ASCUS相比,PAX1m/JAM3m(+)减少了转诊至阴道镜的显著次数而不影响诊断灵敏度。
    OBJECTIVE: In this study, we aimed to validate the performance of the PAX1 and JAM3 methylation (PAX1m/JAM3m) test as a triage tool for detecting cervical intraepithelial neoplasia grade 3 or worse (CIN3 +) in non-16/18 high-risk human papillomavirus-positive patients (non-16/18 hrHPV +).
    METHODS: The triage performance of liquid-based cytology (LBC) and the PAX1m/JAM3m test for detecting CIN3 + were compared.
    RESULTS: In total, 1851 participants had cervical histological outcomes and were included in the analysis. The sensitivity/specificity of the LBC test results with atypical squamous cells of undetermined significance or worse (LBC ≥ ASCUS) and the PAX1m/JAM3m test were 90.1%/26.7% and 84.8%/88.5%, respectively. PAX1m/JAM3m( +) had the highest diagnostic AUC (0.866, 95% confidence interval (CI) 0.837-0.896) in the whole cohort. All cancers (n = 20) were detected by PAX1m/JAM3m(+). Compared with LBC ≥ ASCUS, PAX1m/JAM3m(+) reduced the number of patients who needed referral for colposcopy by 57.21% (74.66% vs. 17.45%). The odds ratios for detecting CIN3 + by LBC ≥ ASCUS and PAX1m/JAM3m(+) were 3.3 (95% CI 2.0-5.9) and 42.6 (27.1-69.6), respectively (p < 0.001). The combination of LBC ≥ ASCUS or PAX1m/JAM3m(+) slightly increased the diagnostic sensitivity (98.0%, 95% CI: 95.8-100%) and referral rate (77.09%) but reduced the diagnostic specificity (24.8%, 22.7-26.8%).
    CONCLUSIONS: In non-16/18 hrHPV(+) women, PAX1m/JAM3m was superior to cytology for detecting CIN3 + . Compared with LBC ≥ ASCUS, PAX1m/JAM3m(+) reduced the number of significant referrals to colposcopy without compromising diagnostic sensitivity.
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  • 文章类型: Journal Article
    早期筛查多发肿瘤的护理和体检有助于早期发现肿瘤,从而提高治愈率。研究其分子机制迫在眉睫。通过登录基因表达综合数据库,我们发现喉癌数据集GSE127165,膀胱癌数据集GSE65635,口腔癌数据集GSE146483,获得差异表达基因,随后,加权基因共表达网络分析,蛋白质-蛋白质相互作用网络,功能富集分析,免疫浸润分析,生存分析,进行了比较毒物基因组学数据库分析。绘制基因表达的热图。使用targetScan搜索有关核心DEG的miRNA信息。获得了53个差异表达基因。在GOKEGG分析中,它们聚集在细胞周期过程中,主轴杆,和蛋白质丝氨酸/苏氨酸/酪氨酸激酶活性细胞周期,癌症中的转录失调,RIG-I样受体信号通路,P53信号通路。蛋白质相互作用分析筛选出5个基因(NEK2、BUB1、HMMR、TTK,CCNB2)。细胞周期蛋白B2(CCNB2)和不被苯并咪唑1(BUB1)抑制的出芽在喉癌中高表达,膀胱癌,口腔癌。比较毒物基因组学数据库分析发现,核心基因(CCNB2、BUB1)与肿瘤、坏死,和炎症。CCNB2基因相关miRNA为hsa-miR-670-3p;BUB1基因相关miRNA为hsa-miR-5688、hsa-miR-495-3p。CCNB2和BUB1在喉癌中高表达,膀胱癌,口腔癌,这表明了它们作为精确治疗这些癌症的分子靶点的潜力。
    Nursing and physical examination early screening of multiple tumors is helpful to find tumors early, so as to improve the cure rate. Studying its molecular mechanisms is urgent. By logging into gene expression omnibus database, we found laryngeal cancer dataset GSE127165, bladder cancer dataset GSE65635, oral cancer dataset GSE146483, obtain differentially expressed genes, subsequently, weighted gene co-expression network analysis, protein-protein interaction networks, functional enrichment analysis, immune infiltration analysis, survival analysis, comparative toxicogenomics database analysis were conducted. Draw a heatmap of gene expression. Use targetScan to search for miRNA information about core DEG. Got 53 differentially expressed genes. In GOKEGG analysis, they were clustered in cell cycle processes, spindle poles, and protein serine/threonine/tyrosine kinase activity cell cycle, transcriptional dysregulation in cancer, RIG-I-like receptor signaling pathway, P53 signaling pathway. Protein-protein interaction analysis screened out 5 genes (NEK2, BUB1, HMMR, TTK, CCNB2). Cyclin B2 (CCNB2) and budding uninhibited by benzimidazole 1 (BUB1) were highly expressed in laryngeal cancer, bladder cancer, oral cancer. Comparative toxicogenomics database analysis found that core genes (CCNB2, BUB1) are associated with tumors, necrosis, and inflammation. Related miRNA of CCNB2 gene is hsa-miR-670-3p; related miRNAs of BUB1 gene are hsa-miR-5688, hsa-miR-495-3p. CCNB2 and BUB1 exhibit high expression in laryngeal cancer, bladder cancer, and oral cancer, suggesting their potential as molecular targets for precision therapy in these cancers.
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  • 文章类型: Journal Article
    持续的人乳头瘤病毒(HPV)感染仍然是宫颈癌的关键危险因素。基于HPV的初筛在临床指南中被广泛推荐,与细胞学相比,需要进一步的纵向研究来优化检测高级别宫颈病变的策略。
    从2015年11月到2023年12月,31,942名参与者被纳入现实世界的观察研究。其中,4,219名参与者接受了至少两轮HPV测试,397人完成了三轮HPV检测。所有参与者均接受了高危型HPV16/18/31/33/35/39/45/51/52/56/58/59/66/68(hrHPV)和低危型HPV6/11基因分型检测。一些参与者还接受了细胞学检查或阴道镜检查。
    在横截面队列中,hrHPV和所有HPV亚型的患病率分别为6.6%(2,108/31,942)和6.8%(2,177/31,942),分别。前三个hrHPV基因型是HPV52(1.9%),HPV58(0.9%),和HPV16(0.9%)。年龄分布在45-49岁和60-65岁出现两个高峰。对于初级筛查队列,hrHPV患病率从2015-2017年的4.8%上升至2020年的7.0%,最终在2023年达到7.2%.对于纵向队列研究,重复人群中的hrHPV患病率(3.9、5.3和6.0%)低于初次hrHPV筛查率(6.6%),这表明重复筛查可能会降低患病率。方法上,hrHPV(89.5%)和16种亚型筛查组(92.3%)的敏感性优于细胞学组(54.4%).此外,纵向研究表明,持续性hrHPV亚组的高级别鳞状上皮内病变和更多组织学进展事件的发生率明显更高(p=0.04)(7/17vs.0/5)比再感染组。
    这项研究表明,东莞的高危型HPV患病率正在上升,反复筛查减少了这种趋势。研究结果支持基于HPV的初筛,并可能指导华南地区的HPV疫苗接种和宫颈癌预防。
    UNASSIGNED: Persistent human papillomavirus (HPV) infection remains a key risk factor for cervical cancer. HPV-based primary screening is widely recommended in clinical guidelines, and further longitudinal studies are needed to optimize strategies for detecting high-grade cervical lesions compared to cytology.
    UNASSIGNED: From November 2015 to December 2023, 31,942 participants were included in the real-world observational study. Among those, 4,219 participants underwent at least two rounds of HPV tests, and 397 completed three rounds of HPV tests. All participants were tested for high-risk types of HPV 16/18/31/33/35/39/45/51/52/56/58/59/66/68 (hrHPV) and low-risk types of HPV6/11 genotyping. Some participants also received cytology or colposcopy with pathology.
    UNASSIGNED: In the cross-sectional cohort, the prevalence of hrHPV and all HPV subtypes was 6.6% (2,108/31,942) and 6.8% (2,177/31,942), respectively. The three top hrHPV genotypes were HPV52 (1.9%), HPV58 (0.9%), and HPV16 (0.9%). Age distributions showed two peaks at 45-49 and 60-65 years. For the primary screening cohort, the hrHPV prevalence rate increased from 4.8% in 2015-2017 to 7.0% in 2020-2020 and finally reached 7.2% in 2023. For the longitudinal cohort study, the hrHPV prevalence rates in the repeated population (3.9, 5.3, and 6.0%) were lower than the primary hrHPV screening rates (6.6%), which indicated that repeated screening might decrease the prevalence rate. Methodologically, the hrHPV (89.5%) and the screening group of 16 subtypes (92.3%) demonstrated superior sensitivity than the cytology group (54.4%). Moreover, the longitudinal study indicated that the persistent hrHPV subgroup had a significantly higher (p = 0.04) incidence of high-grade squamous intraepithelial lesions and more histology progression events (7/17 vs. 0/5) than the reinfection group.
    UNASSIGNED: The study indicates a rising high-risk HPV prevalence in Dongguan, with repeated screening reducing this trend. The findings support HPV-based primary screening and might guide HPV vaccination and cervical cancer prevention in South China.
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  • 文章类型: Journal Article
    背景:目前,使用靛蓝(IC)的常规内镜和色素内镜是确定早期胃癌病变的分界线(DL)的非常有用的方法,但它并不适合所有的病变。
    目的:本研究旨在确定IC色素内镜的适用条件。
    方法:我们回顾性评估了181例内镜诊断为EGC并接受内镜黏膜下剥离术(ESD)治疗的患者中的187个病灶。根据病变粘膜与正常粘膜之间存在的DL,用IC染色内镜检查,病变分为2组:明确组和不明确组。评价各组的临床病理特征。2022年1月至2023年3月,对清晰组19个病灶(81片)和不清晰组19个病灶(80片)的术后病理切片进行高清晰度扫描,并评估两组间的隐窝结构。
    结果:明确组与不明确组之间的临床因素没有显着差异。隐窝面积有显著差异,地穴长度,两组之间的隐窝开口直径。在清晰的群体中,隐窝面积有显著差异,地穴长度,正常区域和癌症区域之间的隐窝开口直径,但不清楚组没有显着差异。
    结论:合并或缺失隐窝结构的病灶边缘,一个小小的隐窝区,一个短的隐窝长度,和一个短的隐窝开口直径可以很容易地确定与IC染色内镜。
    BACKGROUND: At present, conventional endoscopy and chromoendoscopy using indigo carmine (IC) is a very useful method to determine the demarcation line (DL) of early gastric cancer lesions, but it is not suitable for all lesions.
    OBJECTIVE: This study aimed to determine the applicable conditions for IC chromoendoscopy.
    METHODS: We retrospectively evaluated 187 lesions in 181 patients who had an endoscopic diagnosis of EGC and were treated with endoscopic submucosal dissection (ESD). According to the existence of the DL between the lesion mucosa and normal mucosa with IC chromoendoscopy, the lesions were divided into two groups: clear group and unclear group. Clinicopathological characteristics were evaluated in each group. From January 2022 to March 2023, the postoperative pathological sections of 19 lesions (81 slices) in the clear group and 19 lesions (80 slices) in unclear group were scanned with high definition, and the crypt structure between the two groups was evaluated.
    RESULTS: There was no significant difference in clinical factors between the clear group and unclear group. There were significant differences in crypt area, crypt length, and crypt opening diameter between the two groups. In the clear group, there were significant differences in crypt area, crypt length, and crypt opening diameter between the normal area and cancer area, but there was no significant difference in the unclear group.
    CONCLUSIONS: The margins of lesions with fused or absent crypt structures, a small crypt area, a short crypt length, and a short crypt opening diameter can be easily determined with IC chromoendoscopy.
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  • 文章类型: English Abstract
    Objective: To analyze the detection of colorectal advanced neoplasms in the population who underwent colonoscopy screening in Henan Province as part of the Urban China Cancer Screening Program and its influencing factors. Methods: A cross-sectional study design was employed. Based on the Cancer Screening Program conducted in Henan Province, the study enrolled 7 454 urban residents who manifested no symptoms and were recruited from eight cities in the province, including Zhengzhou, Zhumadian, Anyang, Luoyang, Nanyang, Jiaozuo, Xinxiang, and Puyang from October 2013 to October 2019, and participated in colonoscopy screening. The χ2 test was used to compare the detection rates of colorectal advanced neoplasms among participants with different characteristics, and a multivariate logistic stepwise regression model was used to analyze the factors affecting the detection rates. Results: A total of 7 454 subjects underwent colonoscopy screening, and 112 cases of colorectal advanced neoplasms were detected. Multivariate logistic regression analysis suggested that older age, smoking, higher meat intake, history of diabetes, and family history of colorectal cancer in a first-degree relative were risk factors for colorectal advanced neoplasms. The detection rate was significantly higher in people aged 60-74 years compared with those aged 40-49 years, with an odds ratio (OR) of 2.04 (95% CI: 1.23-3.38).The rates were higher in people who smoked than those who did not smoke, with an OR of 2.21 (95% CI: 1.48-3.31), and in people who consumed more meat than those who consumed less, with an OR of 1.53 (95% CI: 1.04-2.26). Those with diabetes had a higher detection rate compared with those without, with an OR of 1.69 (95% CI: 1.07-2.69), and those with a first-degree family history of colorectal cancer had a higher detection rate than those without, with an OR of 1.64 (95% CI: 1.09-2.46). Conclusion: The detection rate of colorectal advanced neoplasms through colonoscopy screening in Henan Province covered by the Urban China Cancer Screening Program is 1.50%. Older age, smoking, higher meat intake, history of diabetes, and family history of colorectal cancer in a first-degree relative are identified as risk factors for colorectal advanced neoplasms.
    目的: 探讨河南省城市癌症早诊早治项目中结肠镜筛查人群结直肠进展期肿瘤检出情况及其影响因素。 方法: 采用横断面研究设计,依托河南省城市癌症早诊早治项目,以2013年10月至2019年10月在河南省郑州市、驻马店市、安阳市、洛阳市、南阳市、焦作市、新乡市和濮阳市招募的无症状参与结肠镜筛查的7 454名城市居民为研究对象,采用χ2检验比较不同特征人群的结直肠进展期肿瘤检出率,采用多因素logistic回归模型分析结直肠进展期肿瘤检出的影响因素。 结果: 接受结肠镜筛查的7 454人中共检出进展期肿瘤112例,检出率为1.50%。多因素logistic回归分析显示,年龄、吸烟史、肉类摄入量、糖尿病史和一级亲属结直肠癌家族史是结直肠进展期肿瘤检出的独立影响因素。与40~49岁组相比,60~74岁组检出结直肠进展期肿瘤的风险增高(OR=2.04,95% CI:1.23~3.38);与不吸烟人群相比,正在吸烟的人群检出结直肠进展期肿瘤的风险增高(OR=2.21,95% CI:1.48~3.31);与肉类摄入量较少的人群相比,肉类摄入量较多的人群检出结直肠进展期肿瘤的风险增高(OR=1.53,95% CI:1.04~2.26);与无糖尿病史的人群相比,有糖尿病史的人群检出结直肠进展期肿瘤的风险增高(OR=1.69,95% CI:1.07~2.69);与无一级亲属结直肠癌家族史的人群相比,有一级亲属结直肠癌家族史的人群检出结直肠进展期肿瘤的风险增高(OR=1.64,95% CI:1.09~2.46)。 结论: 河南省城市癌症早诊早治项目中结肠镜筛查结直肠进展期肿瘤的检出率为1.50%,高龄、吸烟、肉类摄入较多、糖尿病史、结直肠癌一级亲属家族史是结直肠进展期肿瘤的危险因素。.
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  • 文章类型: Journal Article
    结直肠癌(CRC)进展(正常-腺瘤-CRC)中血浆和粪便代谢组的变化尚不清楚。这里,从四个独立的队列中收集血浆和粪便样本,包括1,251名个体(422CRC,399结直肠腺瘤[CRA],和430正常控制[NC])。通过代谢组学分析,特征血浆和粪便代谢物在NC中具有一致的移位,CRA,和CRC被识别,包括富含CRC的油酸和去CRC的异胆酸。油酸在CRC细胞中表现出促致瘤作用,患者来源的类器官,和两个小鼠CRC模型,而异胆酸具有相反的作用。通过综合分析,我们发现油酸或异胆酸直接与CRC细胞中的α-烯醇化酶或法尼醇X受体1结合,分别,调节癌症相关途径。临床上,我们建立了一组17种血浆代谢物,在一个发现和三个验证队列中准确诊断CRC(AUC=0.848-0.987).总的来说,我们表征了代谢物的特征,机械意义,以及血浆和粪便代谢组在CRC中的诊断潜力。
    Changes in plasma and fecal metabolomes in colorectal cancer (CRC) progression (normal-adenoma-CRC) remain unclear. Here, plasma and fecal samples were collected from four independent cohorts of 1,251 individuals (422 CRC, 399 colorectal adenoma [CRA], and 430 normal controls [NC]). By metabolomic profiling, signature plasma and fecal metabolites with consistent shift across NC, CRA, and CRC are identified, including CRC-enriched oleic acid and CRC-depleted allocholic acid. Oleic acid exhibits pro-tumorigenic effects in CRC cells, patient-derived organoids, and two murine CRC models, whereas allocholic acid has opposing effects. By integrative analysis, we found that oleic acid or allocholic acid directly binds to α-enolase or farnesoid X receptor-1 in CRC cells, respectively, to modulate cancer-associated pathways. Clinically, we establish a panel of 17 plasma metabolites that accurately diagnoses CRC in a discovery and three validation cohorts (AUC = 0.848-0.987). Overall, we characterize metabolite signatures, mechanistic significance, and diagnostic potential of plasma and fecal metabolomes in CRC.
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  • 文章类型: Journal Article
    背景:乳腺癌和宫颈癌是女性最常见的癌症,并与高发病率和死亡率有关。癌症筛查可以促进早期诊断,降低死亡率,减轻癌症的负担。社会支持和自我效能感与癌症筛查行为密切相关。本研究旨在探讨自我效能感对社会支持和癌症筛查行为的中介作用。
    方法:在2023年6月至10月进行的这项横断面调查研究中,从中国东海岸地区招募了312名35-65岁的女性。一般信息问卷,癌症筛查行为问卷,使用社会支持量表和自我效能感量表收集数据。采用描述性统计方法分析被试的一般特征;采用单因素方差分析检验被测变量的差异;采用皮尔逊相关分析描述社会支持之间的关系。自我效能感,和癌症筛查行为。使用SPSS的PROCESS宏构建和分析了中介模型。
    结果:乳腺癌和宫颈癌的平均(标准偏差)筛查行为评分为3.98(2.79),代表一个中间的水平。自我效能感与社会支持、癌症筛查行为密切相关。社会支持与自我效能感(r=0.37,p<0.01)和癌症筛查行为(r=0.18,p<0.01)呈显著正相关。自我效能与癌症筛查行为呈显著正相关(r=0.19,p<0.05)。自我效能在社会支持和癌症筛查行为之间表现出完全的中介作用。具有32%的解释力。
    结论:研究结果强调需要提高女性的社会支持水平和自我效能感,这反过来可以增加妇女在乳腺癌和宫颈癌筛查中的参与。
    BACKGROUND: Breast and cervical cancer are the most common cancers in women, and are associated with high morbidity and mortality rates. Cancer screening can facilitate early diagnosis, reduce mortality, and ease the burden of cancer. Social support and self-efficacy are strongly associated with cancer screening behavior. The present study aimed to explore the mediating effect of self-efficacy on social support and cancer screening behavior.
    METHODS: In this cross-sectional survey study conducted from June to October 2023, 312 women aged 35-65 years were recruited from the East Coast area of China. A general information questionnaire, cancer screening behavior questionnaire, social support scale and self-efficacy scale were used to collect data. Descriptive statistics were used to analyze the general characteristics of participants; one-way analysis of variance was used to test for differences in the measured variables; and Pearson\'s correlation analyses were used to describe the relationship among social support, self-efficacy, and cancer screening behavior. A mediation model was constructed and analyzed using the PROCESS macro for SPSS.
    RESULTS: The mean (standard deviation) screening behavior score for breast cancer and cervical cancer was 3.98 (2.79), representing an intermediate level. Self-efficacy was closely related to social support and cancer screening behavior. Social support showed a significant positive correlation with self-efficacy (r = 0.37, p < 0.01) and cancer screening behavior (r = 0.18, p < 0.01). Self-efficacy was also significantly positively correlated with cancer screening behavior (r = 0.19, p < 0.05). Self-efficacy showed a full mediating effect between social support and cancer screening behavior, with an explanatory power of 32%.
    CONCLUSIONS: The findings emphasize the need to increase women\'s level of social support and self-efficacy, which in turn can increase women\'s participation in breast and cervical cancer screening.
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  • 文章类型: Journal Article
    背景:当前呼吸生物标志物的敏感性和特异性通常不足以进行有效的癌症筛查,尤其是结直肠癌(CRC)。虽然CRC中的一些呼出生物标志物表现出高特异性,它们缺乏早期检测所需的灵敏度,从而限制了患者生存率的提高。方法:在本研究中,我们开发了一个先进的基于质谱的挥发物组学平台,辅以增强的呼吸采样器。该平台集成了人工智能(AI)辅助算法,以检测人体呼吸中的多种挥发性有机化合物(VOC)生物标志物。随后,我们应用该平台分析了364例临床CRC和正常呼出气样本.结果:诊断特征,包括2-甲基,辛烷值,和丁酸,该平台生成的CRC患者与正常对照具有较高的敏感性(89.7%),特异性(86.8%),和准确性(AUC=0.91)。此外,转移特征正确识别了超过50%的癌胚抗原(CEA)检测阴性的转移患者.粪便验证表明,呼吸生物标志物升高与CRC中脆弱拟杆菌引导的炎症反应相关。结论:这项研究引入了一个复杂的AI辅助质谱平台,能够识别新的和可行的呼吸生物标志物早期CRC检测。有希望的结果将该平台定位为临床应用的有效无创筛查测试,为早期发现提供了潜在的进步,并提高了CRC患者的生存率。
    Background: The sensitivity and specificity of current breath biomarkers are often inadequate for effective cancer screening, particularly in colorectal cancer (CRC). While a few exhaled biomarkers in CRC exhibit high specificity, they lack the requisite sensitivity for early-stage detection, thereby limiting improvements in patient survival rates. Methods: In this study, we developed an advanced Mass Spectrometry-based volatilomics platform, complemented by an enhanced breath sampler. The platform integrates artificial intelligence (AI)-assisted algorithms to detect multiple volatile organic compounds (VOCs) biomarkers in human breath. Subsequently, we applied this platform to analyze 364 clinical CRC and normal exhaled samples. Results: The diagnostic signatures, including 2-methyl, octane, and butyric acid, generated by the platform effectively discriminated CRC patients from normal controls with high sensitivity (89.7%), specificity (86.8%), and accuracy (AUC = 0.91). Furthermore, the metastatic signature correctly identified over 50% of metastatic patients who tested negative for carcinoembryonic antigen (CEA). Fecal validation indicated that elevated breath biomarkers correlated with an inflammatory response guided by Bacteroides fragilis in CRC. Conclusion: This study introduces a sophisticated AI-aided Mass Spectrometry-based platform capable of identifying novel and feasible breath biomarkers for early-stage CRC detection. The promising results position the platform as an efficient noninvasive screening test for clinical applications, offering potential advancements in early detection and improved survival rates for CRC patients.
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  • 文章类型: Journal Article
    胃癌的早期诊断可以改善患者的预后,特别是对于那些早期胃癌(EGC),但只有15%的病人,或更少,被诊断为EGC和癌前病变。窄带成像放大内镜(ME-NBI)可以提高诊断准确性。我们评估了ME-NBI在诊断心电图和癌前病变中的功效。特别是NBI+ME下的一些特征。回顾性分析131例接受内镜黏膜下剥离术并根据2019年WHO胃肠道肿瘤标准病理诊断为EGC或IN的EGC或胃上皮内瘤变(IN)患者。我们研究了ME-NBI下病变的特征,比较ME-NBI和白光内镜(WLI)加活检的诊断效能,并研究了幽门螺杆菌感染对微血管和微表面模式的影响。ME-NBI对EGC的诊断准确性,高级IN(HGIN),低品位IN(LGIN)为76.06%,77.96%,和77.06%,分别。WLI加活检诊断上述病变的准确率为69.7%,57.5%,和60.53%,分别。LGIN中回回样管状的比率最高(60.46%),而HGIN中乳头状图案的最高比率为57.14%,EGC中绒毛管状图案的最高比率为52%。分界线对于区分EGC和IN具有更好的灵敏度(92.06%)。ME-NBI对EGC的诊断准确率高于WLI+活检。分界线和绒毛状和乳头状微表面图案作为EGC和HGIN特征更具体。脑回样微表面模式对LGIN更有特异性。
    Early diagnosis of gastric cancer can improve the prognosis of patients, especially for those with early gastric cancer (EGC), but only 15% of patients, or less, are diagnosed with EGC and precancerous lesions. Magnifying endoscopy with narrow-band imaging (ME-NBI) can improve diagnostic accuracy. We assess the efficacy of ME-NBI in diagnosing ECG and precancerous lesions, especially some characteristics under NBI+ME. This was a retrospective analysis of 131 patients with EGC or gastric intraepithelial neoplasia (IN) who had undergone endoscopic submucosal dissection and were pathologically diagnosed with EGC or IN according to 2019 WHO criteria for gastrointestinal tract tumors. We studied the characteristics of lesions under ME-NBI ,compared the diagnostic efficacy of ME-NBI and white light endoscopy (WLI) plus biopsy, and investigated the effect of Helicobacter pylori infection on microvascular and microsurface pattern. The diagnostic accuracy of ME-NBI for EGC, high-grade IN (HGIN), and low-grade IN (LGIN) was 76.06%, 77.96%, and 77.06%, respectively. The accuracy of WLI plus biopsy in diagnosing the above lesions was 69.7%, 57.5%, and 60.53%, respectively. The rate of gyrus-like tubular pattern was highest in LGIN (60.46%), whereas the highest rate of papillary pattern was 57.14% in HGIN and villous tubular pattern was 52% in EGC. Demarcation lines have better sensitivity for differentiating EGC from IN (92.06%). The ME-NBI has higher diagnostic accuracy for EGC than WLI plus biopsy. Demarcation lines and villous and papillary-like microsurface patterns are more specific as EGC and HGIN characteristics. The cerebral gyrus-like microsurface pattern is more specific for LGIN.
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  • 文章类型: Journal Article
    背景:低剂量计算机断层扫描(LDCT)肺癌筛查(LCS)是一种有效的方法,可以降低高危人群的肺癌死亡率。然而,很少有研究试图衡量LDCTLCS服务交付的偏好。本研究旨在提供有关中国人群对LDCTLCS服务提供偏好的定量信息。
    方法:邀请中国四川省40至74岁的普通人群完成在线离散选择实验(DCE)。DCE要求参与者回答14个离散的选择问题,包括五个属性:设施级别,设施所有权,旅行模式,旅行时间,和自付费用。使用混合logit和潜在类logit(LCL)模型分析选择数据。
    结果:该研究包括2529名受访者,746(29.5%)被确定为有肺癌风险。混合logit模型(MLM)分析显示,所有五个属性都显着影响受访者的选择。设施水平的相对重要性最高(44.4%),其次是设施所有权(28.1%),而自付费用的重要性最低(6.4%)。与无风险组相比,风险组相对更重视价格和设施所有权。LCL模型确定了具有不同偏好的五个不同类别。
    结论:这项研究揭示了中国人群对LCS服务属性偏好的显著异质性,设施水平和设施所有权是最重要的因素。研究结果强调需要针对不同亚组偏好的定制策略,以提高筛查参与率并改善早期发现结果。
    BACKGROUND: Lung cancer screening (LCS) with low-dose computed tomography (LDCT) is an efficient method that can reduce lung cancer mortality in high-risk individuals. However, few studies have attempted to measure the preferences for LDCT LCS service delivery. This study aimed to generate quantitative information on the Chinese population\'s preferences for LDCT LCS service delivery.
    METHODS: The general population aged 40 to 74 in the Sichuan province of China was invited to complete an online discrete choice experiment (DCE). The DCE required participants to answer 14 discrete choice questions comprising five attributes: facility levels, facility ownership, travel mode, travel time, and out-of-pocket cost. Choice data were analyzed using mixed logit and latent class logit (LCL) models.
    RESULTS: The study included 2529 respondents, with 746 (29.5%) identified as being at risk for lung cancer. Mixed logit model (MLM) analysis revealed that all five attributes significantly influenced respondents\' choices. Facility levels had the highest relative importance (44.4%), followed by facility ownership (28.1%), while out-of-pocket cost had the lowest importance (6.4%). The at-risk group placed relatively more importance on price and facility ownership compared to the non-risk group. LCL model identified five distinct classes with varying preferences.
    CONCLUSIONS: This study revealed significant heterogeneity in preferences for LCS service attributes among the Chinese population, with facility level and facility ownership being the most important factors. The findings underscore the need for tailored strategies targeting different subgroup preferences to increase screening participation rates and improve early detection outcomes.
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