与非综合征性发育牙齿发育不全(TA)相关的不同基因和基因座在包括乳腺癌(BC)在内的肿瘤的发展中具有相同的因果关系。上皮性卵巢癌(EOC),结直肠癌(CRC)和肺癌(LC)。
评估TA与癌症发展之间的联系。
这项注册审查包括对电子数据库的全面搜索(Cochrane中央对照试验登记册[CENTRAL],LILACS,Scopus,WebofScience和MedlineviaOvid)至2020年4月1日,辅以手册,灰色文献和参考列表搜索。发布日期没有限制,性别,种族或类型的低体症。
主要结果是TA与癌症之间的关系。次要结果是确定TA和癌症之间的遗传相关性。
研究选择,数据提取和偏倚风险评估由两名审阅者独立进行,争议由第三位审稿人解决。
最终审查中纳入了8项具有中等高度偏倚风险的研究,共有5821人参加。由于纳入研究之间的异质性,数据以叙述方式呈现。有限的研究报告,与没有TA(EOC为3%,CRC为0%)相比,有TA(取决于研究)的个体中EOC(19.2%-20%)和CRC(82%-100%)的患病率很高。而其他人报道EOC与CRC和TA之间的相关性较弱(P>0.05)。微弱的证据表明乳房之间有很强的相关性,子宫颈癌和前列腺癌与TA(P<0.05)。
尽管低质量的证据表明TA和癌症之间存在联系,无法验证TA是否具有作为癌症标志物的预测价值.需要进一步的研究来确认这种关联。
PROSPERO(CRD42020139751)。
Different genes and loci that are associated with non-syndromic developmental tooth agenesis (TA) have the same causation pathway in the development of tumours including breast cancer (BC), epithelial ovarian cancer (EOC), colorectal cancer (CRC) and lung cancer (LC).
To assess the link between TA and the development of cancer.
This registered
review included a comprehensive search of electronic databases (Cochrane Central Register of Controlled Trials [CENTRAL], LILACS, Scopus, Web of Science and Medline via Ovid) until 1 April 2020, supplemented by manual, grey literature and reference lists search. There was no restriction in term of date of publication, gender, race or type of hypodontia.
The primary outcome was the relationship between TA and cancer. The secondary outcome was to identify the genetic correlation between TA and cancer.
Study selection, data extraction and risk of bias assessment were performed independently and induplicate by two reviewers, with disputes resolved by a third reviewer.
Eight studies with a moderate-high risk of bias were included in the final
review, with a total of 5821 participants. Due to the heterogeneity among the included studies, the data were presented narratively. Limited studies reported a high prevalence of EOC (19.2%-20%) and CRC (82%-100%) in individuals with TA (depending on the study) compared to those without TA (3% for EOC and 0% for CRC). While others reported a weak correlation between EOC and CRC and TA (P > 0.05). Weak evidence suggested a strong correlation between breast, cervical uterine and prostate cancers and TA (P < 0.05).
Though low-quality evidence suggests a link between TA and cancer, it was not possible to verify that TA can hold a predictive value as a marker for cancers. Further research is needed to confirm the association.
PROSPERO (CRD42020139751).