scholarly journals Dietary intake of vitamin B12 in relation to diet and lifestyle characteristics in a population at high risk for colorectal cancer

2018 ◽  
Vol 26 (4) ◽  
pp. 253-259 ◽  
Author(s):  
Ines Banjari ◽  
Snježana Kožić
2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Abeir El Mogassabi ◽  
Elizabeth Williams ◽  
Bernard Corfe ◽  
Mark Hull

AbstractColorectal cancer (CRC) is the fourth most common cancer in the UK; 95% of CRCs develop from colorectal adenomas. Adults in England aged 60–74 years are screened for colorectal cancer through the national Bowel Cancer Screening Programme (BCSP) which aims to detect colorectal cancer early, and also remove colorectal adenomas. However, adenoma recurrence is common. The World Cancer Research Fund (WCRF) estimates that around 45% of CRC cases could be prevented by a healthy lifestyle. There are no specific dietary guidelines to protect against adenoma recurrence and patients do not receive dietary advice in the care pathway. Nonetheless understanding the dietary intake of people with adenoma who are at high-risk of developing CRC and their subsequent dietary behaviour post-diagnosis may design future intervention strategies.This study aims to describe the diet of colorectal adenoma patients and evaluate whether there were elective changes in diet following diagnosis.The data used in this study were obtained from colorectal adenoma patients at high risk of recurrence, recruited to the seAFOod polyp prevention trial through the English BCSP. Dietary intake was assessed using the EPIC Food Frequency Questionnaire at two time points: during the 12 months before and during the 12 months after adenoma diagnosis. FETA dietary analysis software was used to extract data. Paired Sample-T-Tests and Wilcoxon Signed-Rank Test were used to assess change in intake using SPSS version 25.Of the 709 patients recruited to the main study, 526 completed the FFQ on both occasions, of whom 81.7% were males. The mean age was 65 years (SD 4.8), 83.4% were overweight or obese with mean BMI = 29.5 kg/m2 (SD 5.7). The majority of nutrient intakes met UK DRVs, with the exception of low intake of fibre, vitamin D and selenium. Following diagnosis, a significant reduction was detected in daily intake of energy (from 7.7 to 7.5 MJ, p < 0.05) meat and meat products (from 124 to 111 g, p < 0.005), non-alcoholic beverages (from 939 to 898 g, p < 0.05) and nuts (from 5.5 to 4.3 g, p < 0.05). Subgroup analysis revealed that dietary changes were confined to men where the reduction in energy was by 293 kj/day and in meat by 1.5 portions per week.Patients do modify diet following a diagnosis of adenoma and changes correspond to WCRF healthy diet guidelines. Whether detected difference between males and females was due to the sample size or due to actual difference in behavior is not clear.


2001 ◽  
Vol 120 (5) ◽  
pp. A741-A741
Author(s):  
P ANG ◽  
D SCHRAG ◽  
K SCHNEIDER ◽  
K SHANNON ◽  
J JOHNSON ◽  
...  

Author(s):  
Karim Nagi ◽  
Ishita Gupta ◽  
Hamda A Al-Thawadi ◽  
Ayesha Jabeen ◽  
Mohammed I. Malk ◽  
...  

Background: Several studies have shown the presence of onco viral DNA in colorectal tumor tissues. Viral infection by onco-viruses such as Human papillomaviruses (HPVs) and Epstein–Barr virus (EBV) are well-known to be involved in the onset and/or progression of numerous human carcinomas. Methods: We explored the co-presence of high-risk HPVs and EBV in a cohort of colorectal cancer samples from Lebanon (94) and Syria (102) by PCR, immunohistochemistry and tissue microarray. Results: The results of the study point out that 54% of colorectal cancer cases in Syria are positive for high-risk HPVs, while 30% of the cases in Lebanon are positive for these viruses; the most frequent high-risk HPV types in these populations are 16, 18, 31, 33 and 35. Analysis of LMP1 showed similar results in both populations; 36% of Syrian and 31% of Lebanese samples. Additionally, we report that EBV and high-risk HPVs are co-present in these samples. In Syrian samples, EBV and HPVs are co-present in 16% of the population, however, in the Lebanese samples, 20% of the cases are positive for both EBV and HPVs; their co-presence is associated with high/intermediate grade invasive carcinomas. Conclusion: These data suggest that EBV and high-risk HPVs are co-present in human colorectal cancers where they can cooperate in the progression of these cancers. Nevertheless, further studies are needed to elucidate the role of those oncoviruses in the development of human colorectal carcinomas.


Author(s):  
Kosuke Mima ◽  
Nobutomo Miyanari ◽  
Keisuke Kosumi ◽  
Takuya Tajiri ◽  
Kosuke Kanemitsu ◽  
...  

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Carly A. Conran ◽  
Zhuqing Shi ◽  
William Kyle Resurreccion ◽  
Rong Na ◽  
Brian T. Helfand ◽  
...  

Abstract Background Genome-wide association studies have identified thousands of disease-associated single nucleotide polymorphisms (SNPs). A subset of these SNPs may be additively combined to generate genetic risk scores (GRSs) that confer risk for a specific disease. Although the clinical validity of GRSs to predict risk of specific diseases has been well established, there is still a great need to determine their clinical utility by applying GRSs in primary care for cancer risk assessment and targeted intervention. Methods This clinical study involved 281 primary care patients without a personal history of breast, prostate or colorectal cancer who were 40–70 years old. DNA was obtained from a pre-existing biobank at NorthShore University HealthSystem. GRSs for colorectal cancer and breast or prostate cancer were calculated and shared with participants through their primary care provider. Additional data was gathered using questionnaires as well as electronic medical record information. A t-test or Chi-square test was applied for comparison of demographic and key clinical variables among different groups. Results The median age of the 281 participants was 58 years and the majority were female (66.6%). One hundred one (36.9%) participants received 2 low risk scores, 99 (35.2%) received 1 low risk and 1 average risk score, 37 (13.2%) received 1 low risk and 1 high risk score, 23 (8.2%) received 2 average risk scores, 21 (7.5%) received 1 average risk and 1 high risk score, and no one received 2 high risk scores. Before receiving GRSs, younger patients and women reported significantly more worry about risk of developing cancer. After receiving GRSs, those who received at least one high GRS reported significantly more worry about developing cancer. There were no significant differences found between gender, age, or GRS with regards to participants’ reported optimism about their future health neither before nor after receiving GRS results. Conclusions Genetic risk scores that quantify an individual’s risk of developing breast, prostate and colorectal cancers as compared with a race-defined population average risk have potential clinical utility as a tool for risk stratification and to guide cancer screening in a primary care setting.


Author(s):  
Kazuko Ishikawa-Takata ◽  
Kaori Okamoto ◽  
Motoko Taguchi

Abstract Background Food frequency questionnaires are considered an effective method for assessing habitual dietary intake, but they must be developed or validated with the target population. Portion size, supplement use and food choice are thought to be especially important methodological considerations for assessing athletes’ dietary intake. This study aimed to develop and validate a food frequency questionnaire for Japanese athletes using data from this population. Methods We used dietary records from 440 Japanese athletes involved in our previous projects. Food items were analyzed using cumulative percentage contributions and multiple regression analysis, to give a selection of 62 basic food items and four supplemental items. The validity of the questionnaire was evaluated among another 77 Japanese athletes by comparing nutrient intakes assessed using the questionnaire with dietary records. Reproducibility was evaluated by comparing a second questionnaire completed 2–3 weeks later by 36 of the athletes in the validation study. Validity was assessed using crude Spearman’s correlation coefficients (CCs), energy-adjusted CCs, intraclass CCs (ICCs), and Kappa index values. Reproducibility was assessed by CCs, energy-adjusted CCs, and ICCs. Results In the validation analysis, the median crude CC for all of the nutrients was 0.407, ranging from 0.222 for dietary fiber to 0.550 for carbohydrate. The median energy-adjusted CC was 0.478, and the median ICC was 0.369. When we divided the athletes into quartiles, 65% (vitamin B1) to 86% (iron) of athletes were classified into the same or adjacent categories using the questionnaire and dietary records, with a median Kappa statistic of 0.32. In the reproducibility analysis, the median crude CC between the two completed questionnaires was 0.654, ranging from 0.582 (carbohydrate) to 0.743 (vitamin B2). The median energy-adjusted CC was 0.643, and the median ICC was 0.647. Conclusions The new 62-item food frequency questionnaire is both reliable and valid and may be useful for assessing food intake in Japanese athletes.


2019 ◽  
Vol 156 (6) ◽  
pp. S-945
Author(s):  
Erica Barnell ◽  
Yiming Kang ◽  
Katie M. Campbell ◽  
Kimberly Kruse ◽  
Andrew Barnell ◽  
...  

2015 ◽  
Vol 17 (7) ◽  
pp. 578-588 ◽  
Author(s):  
M. I. Aslam ◽  
J. Venkatesh ◽  
J. S. Jameson ◽  
K. West ◽  
J. H. Pringle ◽  
...  

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