Abstract：
:To study the effect of oral supplemental calcium on colonic epithelial proliferation, 17 adenomatous polyp patients received 1.5 g Ca2+ as calcium carbonate daily during 12 weeks, while on a calcium constant diet, based on the patients' habitual diet. Seven subsequently continued calcium supplementation for 9 months without dietary restrictions. Epithelial proliferation rate in colonic biopsies, expressed as labelling index (%), was determined with 5-bromodeoxyuridine and immunohistochemistry. Biopsies were taken from the midsigmoid at time of polyp excision and at the end of the intervention period. Median labelling index increased from 6.1% before to 8.7% after 12 weeks calcium (n = 17, P < 0.02). This was due to increased labelling in the basal third of the crypts (11.9 vs 16%), whereas labelling in mid and luminal compartments was not affected. Labelling index remained increased after 1 year calcium supplementation at 8.8%. Crypt length was not affected by calcium. These results are in contrast to those of others, who have shown a decrease of rectal epithelial proliferation during similar doses of calcium. Therefore, the effect of nutritional intervention on colonic epithelial proliferation should be studied in biopsies taken not only from the rectum, but also from more proximal parts of the colon. Caution with respect to large scale intervention studies with calcium in high risk groups is mandatory.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Kleibeuker JH,Welberg JW,Mulder NH,van der Meer R,Cats A,Limburg AJ,Kreumer WM,Hardonk MJ,de Vries EGdoi
10.1038/bjc.1993.93subject
Has Abstractpub_date
1993-03-01 00:00:00pages
500-3issue
3eissn
0007-0920issn
1532-1827journal_volume
67pub_type
杂志文章abstract：:For stage III non-small cell lung cancer (NSCLC), approximately a third of patients survive up to 5 years, with decreasing 5-year survival rates for stage IIIB and stage IIIC disease. Although curable, stage III NSCLC encompasses a diverse range of disease presentation, with an equally complex range of multi-modal tre...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/s41416-020-01069-z
更新日期：2020-12-01 00:00:00
abstract：BACKGROUND:Non-persistence to oral hormonal therapy (HT) in breast cancer (BC) is an emerging health issue, and estimations vary according to the population selected and/or the statistical method applied. This study aimed to estimate non-persistence over 5 years to HT in an unselected sample of women with BC using a Fr...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2016.276
更新日期：2016-10-11 00:00:00
abstract：:The antitumour activities of N-methylformamide, N-ethylformamide and formamide against a number of murine tumours in vivo (Sarcoma 180, M5076 ovarian sarcoma and TLX5 lymphoma) have been estimated. In all cases N-methyl-formamide had significant activity, formamide had marginal or no activity and N-ethylformamide had ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1982.136
更新日期：1982-06-01 00:00:00
abstract：BACKGROUND:The recently described navigator proteins have a multifaceted role in cytoskeletal dynamics. We report here on the relevance of one of them, navigator 3 (NAV3), in colorectal cancer (CRC). METHODS:We analysed changes in chromosome 12 and NAV3 copy number in CRC/adenoma samples of 59 patients and in 6 CRC ce...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2011.553
更新日期：2012-01-31 00:00:00
abstract：:Cell line studies demonstrate that the PI3K/Akt pathway is upregulated in hormone-refractory prostate cancer (HRPC) and can result in phosphorylation of the androgen receptor (AR). The current study therefore aims to establish if this has relevance to the development of clinical HRPC. Immunohistochemistry was employed...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604152
更新日期：2008-03-25 00:00:00
abstract：:The multivariate lognormal survival model can be used to determine the relationship of prognostic covariates to two important parameters of malignancy. Cured fraction and median survival time among uncured patients. Analysis with this model revealed that cured fraction is primarily a function of histologic type and no...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1993.196
更新日期：1993-05-01 00:00:00
abstract：:It has been postulated that paternal gonadal exposure would increase the sex ratio by inducing X-chromosomal dominant lethals but that maternal gonadal exposure would decrease the sex ratio by inducing recessive sex-linked lethals. We therefore evaluated the sex ratio (male-to-female ratio) of children born to survivo...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6600748
更新日期：2003-02-10 00:00:00
abstract：BACKGROUND:New prognostic markers are needed to identify patients with Ewing sarcoma (EWS) and osteosarcoma unlikely to benefit from standard therapy. We describe the incidence and association with outcome of circulating tumour DNA (ctDNA) using next-generation sequencing (NGS) assays. METHODS:A NGS hybrid capture ass...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-018-0212-9
更新日期：2018-08-01 00:00:00
abstract：BACKGROUND:Activated anaplastic lymphoma kinase (ALK) gene fusions are recurrent events in a small fraction of colorectal cancers (CRCs), although these events have not yet been exploited as in other malignancies. METHODS:We detected ALK protein expression by immunohistochemistry and gene rearrangements by fluorescenc...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2015.401
更新日期：2015-12-22 00:00:00
abstract：:Breast cancer is the second most common cancer among women in Madras and southern India after cervix cancer. The Madras Metropolitan Tumour Registry (MMTR), a population-based cancer registry, collects data on the outcome of cancer diagnosis by both active and passive methods. A total of 2080 cases of invasive female ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1997.137
更新日期：1997-01-01 00:00:00
abstract：BACKGROUND:Genome-wide association studies (GWASs) have enriched the fields of genomics and drug development. Adrenocortical carcinoma (ACC) is a rare cancer with a bimodal age distribution and inadequate treatment options. Paediatric ACC is frequently associated with TP53 mutations, with particularly high incidence in...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-020-0764-3
更新日期：2020-04-01 00:00:00
abstract：:We used a nested case-control design on data from men in four prospective studies (from the UK, Maryland in the USA, and two from Finland) with available stored serum samples to determine whether there was an advantage in measuring both free prostate-specific antigen (PSA) and total PSA as a potential screening test f...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.1999.0988
更新日期：2000-02-01 00:00:00
abstract：:Leucocytes are a major component of the tumour microenvironment. Recent studies have indicated that the infiltration and activity of these host cells are regulated by the tumour to promote its survival and progression. Through the production of an array of growth factors, proteases and angiogenic mediators, leucocytes...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/sj.bjc.6601705
更新日期：2004-06-01 00:00:00
abstract：:To our knowledge, very few data about the role of Topoisomerase IIalpha (TOPO-IIalpha), an enzyme involved in critical steps of tumour cell proliferation and chemoresistance are currently available in ovarian cancer patients. The aim of this study was to investigate the prognostic value of TOPO-IIalpha expression in a...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604410
更新日期：2008-06-17 00:00:00
abstract：:The 5T4 oncofetal antigen is a 72 kDa glycoprotein defined by a monoclonal antibody raised against human placental trophoblast and is expressed in many different carcinomas but detected only at low levels in some normal epithelia. Immunohistochemical analysis of the patterns of expression in colorectal carcinomas has ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1994.173
更新日期：1994-05-01 00:00:00
abstract：:The idea that chemotherapy can be used in combination with immunotherapy may seem somewhat counterproductive, as it can theoretically eliminate the immune cells needed for antitumour immunity. However, much preclinical work has now demonstrated that in addition to direct cytotoxic effects on cancer cells, a proportion...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/bjc.2017.376
更新日期：2018-02-06 00:00:00
abstract：:The effects of polymorphisms in genes coding for key folate metabolism enzymes such as thymidylate synthetase (TS) on colorectal neoplasia risk are likely to be influenced by gene-gene and gene-nutrient interactions. We investigated the combined effects of three polymorphisms in the TS gene region, TSER, TS 3R G>C, an...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604056
更新日期：2007-11-19 00:00:00
abstract：:Over the period 1966-1995, based on 11,662 patients, the incidence of squamous cell carcinoma of the skin increased three to four times in Norway mainly as a result of an increased number of localized tumours. In men, cancer of the auricle was the second most common site; in women the incidence was low. ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6690725
更新日期：1999-10-01 00:00:00
abstract：BACKGROUND:Bortezomib is a proteasome inhibitor with minimal clinical activity as a monotherapy in solid tumours, but its combination with other targeted therapies is being actively investigated as a way to increase its anticarcinogenic properties. Here, we evaluate the therapeutic potential of co-treatment with bortez...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2011.546
更新日期：2012-01-17 00:00:00
abstract：:Animal experiments remain essential to understand the fundamental mechanisms underpinning malignancy and to discover improved methods to prevent, diagnose and treat cancer. Excellent standards of animal care are fully consistent with the conduct of high quality cancer research. Here we provide updated guidelines on th...
journal_title：British journal of cancer
pub_type： 杂志文章,实务指引
doi：10.1038/sj.bjc.6605642
更新日期：2010-05-25 00:00:00
abstract：:In order to elucidate the clinical significance of the erbB family, epidermal growth factor receptor (EGF-R), c-erbB-2, c-erbB-3 and c-erbB-4 in hepatocellular carcinoma (HCC), we investigated the expression of these proteins by means of immunohistochemistry for HCC as well as adjacent noncancerous lesions. EGF-R was ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2000.1580
更新日期：2001-05-18 00:00:00
abstract：:An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...
journal_title：British journal of cancer
pub_type： 已发布勘误
doi：10.1038/s41416-020-0879-6
更新日期：2020-08-01 00:00:00
abstract：:Caffeine has for many years been known to be involved in the sensitization of DNA to damage. One potential mechanism recently put forward is an override of the G2/M block induced by irradiation, which would leave the cells less time for DNA repair prior to mitosis. However, different cell types display a variety of re...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2000.1259
更新日期：2000-08-01 00:00:00
abstract：:This is a retrospective study of 520 patients with lung cancer, seen at the Tata Memorial Hospital between 1963 and 1970. Matched controls were obtained from those patients who came to the hospital within the same period and who were diagnosed as not having cancer. The patients and controls were matched for age, sex a...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1974.100
更新日期：1974-06-01 00:00:00
abstract：:Transforming growth factor alpha (TGF alpha) and Transforming growth factor beta-1 (TGF-beta 1) are growth regulatory for breast cancer cell lines in vitro and several studies have suggested that levels of the receptor for TGF alpha, the epidermal growth factor (EGFR) in tumour biopsies predict relapse and survival. W...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1993.261
更新日期：1993-06-01 00:00:00
abstract：BACKGROUND:The aim was to evaluate whether this gastric cancer-screening programme was effective in reducing oesophageal cancer mortality. METHODS:A population-based retrospective cohort study was conducted using the Korean National Cancer Screening Programme (NCSP) database. The study cohort comprised 16,969 oesophag...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-020-0883-x
更新日期：2020-08-01 00:00:00
abstract：:The carcinoembryonic antigen (CEA) was produced and released by human colorectal carcinomata and also the normal attached mucosa when maintained in both monolayer and organ culture. Immunoperoxidase cytochemical methods were employed for the cellular localization of CEA which was demonstrable only on the neoplastic ce...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1975.97
更新日期：1975-05-01 00:00:00
abstract：:No numerical aberration of chromosomes that might be specific for prostate cancer has so far been established. We used fluorescence in situ hybridisation (FISH) with centromere-specific probes for chromosomes 7, 8, 17, X and Y to establish the distribution of centromere copy numbers in frozen-stored or freshly prepare...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1996.617
更新日期：1996-12-01 00:00:00
abstract：:In a population-based cohort study of all women aged over 50 years with breast cancer in the Swedish Cancer Register in 1961-2003, those diagnosed before 31 December 1987 were regarded as unexposed to tamoxifen, whereas those diagnosed after that date were considered potentially exposed. Crosslinkages within the Cance...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6603214
更新日期：2006-07-03 00:00:00
abstract：BACKGROUND:Birt-Hogg-Dubé (BHD) syndrome is an autosomal dominant condition caused by germline FLCN mutations, and characterised by fibrofolliculomas, pneumothorax and renal cancer. The renal cancer risk, cancer phenotype and pneumothorax risk of BHD have not yet been fully clarified. The main focus of this study was t...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2011.463
更新日期：2011-12-06 00:00:00
