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The Taihu Biobank of Tumour Biomarkers (TBTB) study is a large-scale research project conducted in Wuxi, China, with the aim of understanding the prevalence, incidence, and mortality rates of cancer in middle-aged and elderly urban populations. The study recruited over 500,000 participants aged 45 and older and collected baseline data through physical examinations, serum tumor biomarkers, and questionnaire surveys. The study has identified thousands of new cancer cases and encourages collaborations with researchers worldwide. The study provides valuable data on demographic and health-related variables, laboratory test results, and the most commonly diagnosed cancers. However, there are limitations to the study, such as the lack of information on early life exposures and limited data on lifestyle factors. Researchers interested in the study are welcome to collaborate. [Extracted from the article]

The Jiangsu Birth Cohort (JBC) is a research study in China that examines the health outcomes of families who underwent assisted reproductive technology (ART) treatment compared to families with spontaneous pregnancies. The cohort consists of over 7,600 ART-treated families and nearly 15,000 families with spontaneous pregnancies. Data on health were collected through questionnaires, medical records, and biospecimens from both parents and children. The study aims to assess the health and well-being of children conceived through ART and determine any factors that may contribute to elevated risks. The data from the study are available for research purposes. [Extracted from the article]

Background: Increasing evidence suggests that conventional adenomas (CAs) and serrated polyps (SPs) represent two distinct groups of precursor lesions for colorectal cancer (CRC). The influence of common genetic variants on risk of CAs and SPs remain largely unknown.Methods: Among 27 426 participants within three prospective cohort studies, we created a weighted genetic risk score (GRS) based on 40 CRC-related single nucleotide polymorphisms (SNPs) identified in previous genome-wide association studies; and we examined the association of GRS (per one standard deviation increment) with risk of CAs, SPs and synchronous CAs and SPs, by multivariable logistic regression. We also analysed individual variants in the secondary analysis.Results: During 18-20 years of follow-up, we documented 2952 CAs, 1585 SPs and 794 synchronous CAs and SPs. Higher GRS was associated with increased risk of CAs [odds ratio (OR) = 1.17, 95% confidence interval (CI): 1.12-1.21] and SPs (OR = 1.09, 95% CI: 1.03-1.14), with a stronger association for CAs than SPs (Pheterogeneity=0.01). An even stronger association was found for patients with synchronous CAs and SPs (OR = 1.32), advanced CAs (OR = 1.22) and multiple CAs (OR = 1.25). Different sets of variants were associated with CAs and SPs, with a Spearman correlation coefficient of 0.02 between the ORs associating the 40 SNPs with the two lesions. After correcting for multiple testing, three variants were associated with CAs (rs3802842, rs6983267 and rs7136702) and two with SPs (rs16892766 and rs4779584).Conclusions: Common genetic variants play a potential role in the conventional and serrated pathways of CRC. Different sets of variants are identified for the two pathways, further supporting the aetiological heterogeneity of CRC. [ABSTRACT FROM AUTHOR]