454 results match your criteria: "Research Center for Cancer Prevention and Screening[Affiliation]"
Intern Med
August 2024
Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Japan.
Cancer Sci
February 2024
Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan.
Cancer genomic medicine using next-generation sequencers has been developing. However, the number of patients who could receive genomically matched therapy is limited because off-label use or patient-oriented compassionate use was not permitted under National Health Insurance in Japan. To improve patient drug accessibility, we initiated a biomarker-based basket-type clinical trial (NCCH1901) in October 2019 under patient-proposed healthcare services.
View Article and Find Full Text PDFBMJ Open
October 2023
Division of Behavioral Sciences, National Cancer Center Institute for Cancer Control, Research Center for Cancer Prevention and Screening, National Cancer Center, Chuo-ku, Tokyo, Japan.
Cancer Res Commun
June 2022
Department of Drug Discovery Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Unlabelled: Aspirin has gained great attention as a cancer preventive agent. Our previous study revealed that the low-dose aspirin prevents colorectal tumor recurrence in Japanese patients with colorectal adenomas and/or adenocarcinomas, whereas aspirin increases risks in smokers and has no effects on regular drinkers. Our recent study revealed that aspirin reduces polyp growth in Japanese patients with familial adenomatous polyposis (FAP).
View Article and Find Full Text PDFBiotechnol Bioeng
June 2023
Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.
We report an automated cell-isolation system based on fluorescence image analysis of cell aggregates cultured in a photodegradable hydrogel. The system incorporates cell culture in a humidified atmosphere with controlled CO concentration and temperature, image acquisition and analysis, micropatterned light exposure, and cell collection by pipetting. Cell aggregates were cultured on hydrogels, and target cells were selected by phase contrast and fluorescence image analysis.
View Article and Find Full Text PDFTransl Vis Sci Technol
January 2023
Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba, Ibaraki, Japan.
Purpose: To determine the associations between fatty acid intakes and the prevalence of age-related macular degeneration (AMD) under a population-based cross-sectional study.
Methods: Residents of Chikusei City aged ≥40 years underwent systemic and eye screening. AMD was graded according to a modified version of the Age-Related Eye Disease Study classification.
Endoscopy
April 2023
Department of Molecular-Targeting Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Background: Total colectomy is the standard treatment for familial adenomatous polyposis (FAP). Recently, an increasing number of young patients with FAP have requested the postponement of surgery or have refused to undergo surgery. We aimed to evaluate the effectiveness of intensive endoscopic removal for downstaging of polyp burden (IDP) in FAP.
View Article and Find Full Text PDFGastrointest Endosc
January 2023
Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.
Background And Aims: In familial adenomatous polyposis (FAP), neoplastic lesions outside the colon have become increasingly important. The genotype-phenotype correlation has been established for duodenal polyps, and regular screening is recommended. However, this correlation remains unclear for small-intestinal lesions, except for reports on the relationship between their occurrence and Spigelman stage.
View Article and Find Full Text PDFCancer Sci
December 2022
Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
Although many chemopreventive studies on colorectal tumors have been reported, no effective and safe preventive agent is currently available. We searched for candidate preventive compounds against colorectal tumor comprehensively from United States Food and Drug Administration (FDA)-approved compounds by using connectivity map (CMAP) analysis coupled with in vitro screening with colorectal adenoma (CRA) patient-derived organoids (PDOs). We generated CRA-specific gene signatures based on the DNA microarray analysis of CRA and normal epithelial specimens, applied them to CMAP analysis with 1309 FDA-approved compounds, and identified 121 candidate compounds that should cancel the gene signatures.
View Article and Find Full Text PDFIn Vivo
March 2022
Department of Molecular-Targeting Prevention, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan;
Background/aim: Among colorectal cancer-associated intestinal microbiota, colibactin-producing (clb) bacteria are attracting attention. We aimed to clarify the interaction between clb Escherichia coli and normal colorectal epithelial cells in vivo and in vitro.
Materials And Methods: Five-week-old female Balb/c mice were divided in an untreated group, a group treated with clb E.
Br J Nutr
June 2022
Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan.
The association between the intake of non-alcoholic beverages and CVD in Asians is uncertain. The intake of non-alcoholic beverages was estimated in 77 407 participants of the Japan Public Health Centre-based cohort study aged 45-74 years. The Cox regression calculated the hazard ratios (HR) and 95 % CI for incident CVD according to sex-specific quintiles of intake of non-alcoholic beverages.
View Article and Find Full Text PDFGastrointest Endosc
October 2021
Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.
Background And Aims: Postpolypectomy bleeding is the most common adverse event with pedunculated polyps. We clarified the endoscopic characteristics influencing postpolypectomy bleeding for pedunculated colonic polyps.
Methods: We reviewed clinical data for 1147 pedunculated colonic polyps removed by polypectomy in 5 Japanese institutions.
Lancet Gastroenterol Hepatol
June 2021
Department of Drug Discovery Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Background: The only established treatment for preventing colorectal cancer in patients with familial adenomatous polyposis (FAP) is colectomy, which greatly reduces patient quality of life. Thus, an alternative method is warranted. In this trial, we aimed to clarify the individual and joint effects of low-dose aspirin and mesalazine on the recurrence of colorectal polyps in Japanese patients with FAP.
View Article and Find Full Text PDFSci Rep
March 2021
Epidemiology and Prevention Group, Center for Public Health Sciences, Research Center for Cancer Prevention and Screening, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
Little is known about the risk of cerebrovascular disease in cancer survivors. We aimed to assess the association between incident cancer and the subsequent risk of stroke using a large-scale, population-based prospective study. 74,530 Japanese aged between 40 and 69 years at baseline study were matched by the status of cancer diagnosis during follow-up using propensity score nearest-neighbor matching with allowance for replacement.
View Article and Find Full Text PDFInt J Cancer
June 2021
Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan.
Although alcohol consumption is reported to increase the incidence of breast cancer in European studies, evidence for an association between alcohol and breast cancer in Asian populations is insufficient. We conducted a pooled analysis of eight large-scale population-based prospective cohort studies in Japan to evaluate the association between alcohol (both frequency and amount) and breast cancer risk with categorization by menopausal status at baseline and at diagnosis. Estimated hazard ratios (HR) and 95% confidence intervals were calculated in the individual cohorts and combined using random-effects models.
View Article and Find Full Text PDFBMC Public Health
November 2020
Screening Assessment and Management Division, National Cancer Center, Tokyo, Japan.
An amendment to this paper has been published and can be accessed via the original article.
View Article and Find Full Text PDFEur J Epidemiol
January 2021
Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Associations between anthropometric factors and breast cancer (BC) risk have varied inconsistently by estrogen and/or progesterone receptor (ER/PR) status. Associations between prediagnostic anthropometric factors and risk of premenopausal and postmenopausal BC overall and ER/PR status subtypes were investigated in a pooled analysis of 20 prospective cohorts, including 36,297 BC cases among 1,061,915 women, using multivariable Cox regression analyses, controlling for reproductive factors, diet and other risk factors. We estimated dose-response relationships and tested for nonlinear associations using restricted cubic splines.
View Article and Find Full Text PDFCarcinogenesis
February 2021
Department of Molecular-Targeting Prevention, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, Japan.
Artesunate (ART) is a clinically approved antimalarial drug and was revealed as a candidate of colorectal cancer chemopreventive agents in our drug screening system. Here, we aimed to understand the suppressive effects of ART on intestinal tumorigenesis. In vitro, ART reduced T-cell factor/lymphoid enhancer factor (TCF/LEF) promoter transcriptional activity.
View Article and Find Full Text PDFNutrients
May 2020
Department of Molecular-Targeting Prevention, Kyoto Prefectural University of Medicine, Kyoto 602-0841, Japan.
Weight loss, often observed in the elderly, is associated with increased risks of various diseases. No large and long-term human study has been conducted to demonstrate the health maintenance-related effects of lactic acid bacteria preparations. To reveal the potential benefit of long-term lactic acid, the effects of bacteria-based probiotics for health maintenance were examined.
View Article and Find Full Text PDFBMC Cancer
May 2020
Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Background: Tuberculosis is associated with increased risk of cancer. However, the impact of tuberculosis on global cancer burden is unknown.
Methods: We performed random-effects meta-analyses and meta-regressions of studies reporting the association between tuberculosis and cancer risks by searching PubMed, Web of Science, Embase, Cochrane library, and CINAHL from inception to 1 June 2019.
Transl Lung Cancer Res
February 2020
Cancer Screening Division, National Cancer Center, Research Center for Cancer Prevention and Screening, Tokyo, Japan.
Background: This was an observational study of Japanese participants who underwent low-dose computed tomographic (LDCT) lung cancer screening between February 2004 and March 2012, to evaluate the lung cancers in never-smokers and smokers.
Methods: The study population consisted of a total of 12,114 subjects [never-smokers, 6,021 (49.70%); smokers with <30 pack-years of smoking, 3,785 (31.
Cancer Sci
April 2020
Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan.
Colorectal cancer (CRC) is the second leading cause of cancer death worldwide. Therefore, it is important to establish useful methods for preventing CRC. One prevention strategy involves the use of cancer chemopreventive agents, including functional foods.
View Article and Find Full Text PDFSci Rep
January 2020
Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
The study subjects were residents of Chikusei city, Japan, aged 40 years or older who attended annual health check-up programs and participated in the JPHC-NEXT Eye Study which performed non-mydriatic fundus photography of both eyes. The relationship of glaucomatous fundus changes such as optic disc cupping (cup to disc ratio ≥ 0.7) and retinal nerve fiber layer defect (NFLD) with the presence of epiretinal membrane (ERM) were examined cross-sectionally.
View Article and Find Full Text PDFJ Clin Med
January 2020
Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104-0045, Japan.
Colorectal cancer is the fourth leading cause of cancer death worldwide, and it is important to establish effective methods for preventing colorectal cancer. One effective prevention strategy could be the use of antioxidants. However, the role of the direct antioxidative function of antioxidants against carcinogenesis has not been clarified.
View Article and Find Full Text PDFJpn J Clin Oncol
October 2019
Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan.
Background: Coffee and green tea, two popular drinks in the Japanese, have recently drawn much attention as potential protective factors against the occurrence of liver cancer.
Methods: We systematically reviewed epidemiologic studies on coffee, green tea and liver cancer among Japanese populations. Original data were obtained by searching the MEDLINE (PubMed) and Ichushi databases, complemented with manual searches.