View clinical trials related to Carcinogenesis.
Filter by:The data of 460 gastric cancer patients who underwent curative gastrectomy with D2 lymph node dissection between January 2017 and February 2022 were analyzed. The clinicopathological features and prognosis of the patients with EBV-positive gastric cancers were compared with those of EBV-negative gastric cancers. Immunohistochemistry for epidermal growth factor receptor (EGFR), C-erb B2, Ki-67, and p53 was performed. Additionally, in situ hybridization was conducted to detect EBV, and microsatellite instability (MSI) analysis was used to assess the deficiency in mismatch repair (MMR) genes.
This study aims to assess the feasibility, acceptability, and the potential harm reduction of switching to potentially lower risk, oral nicotine pouches in adult smokers. Part One of this study aims to assess the interest of current smokers in switching to an e-cigarette device (i.e. JUUL) compared to alternative non-combustible tobacco products (i.e. smokeless tobacco/snus) and/or medicinal nicotine via survey. Part Two will consist of a pilot study of 30 non-treatment seeking adult smokers to investigate within-person changes in smoking behavior as a result of switching to different concentrations of oral nicotine pouch products (i.e. ZYN, 3mg and 6mg nicotine concentration). Additionally, by measuring bio-markers of tobacco exposure from baseline, this will allow the study to assess the potential for harm reduction in switching from cigarettes to oral nicotine pouches.
As previously reported (IJC Heart & Vasculature 2017; 17: 11.), our epidemiological analysis showing high incidence of cancers in patients with atherosclerotic cardiovascular diseases as compared with those with non-atherosclerotic cardiovascular diseases may imply a clinical possibility of a role of atherosclerosis in cancer developments. In the present study, to address our hypothesis that cancer developments may come with a strength of atherosclerosis, we traced an incidence of cancers in a total of 8,856 patients with coronary artery diseases (CAD) for a median follow-up of 1,095 days (interquartile range, 719-1,469 days) using the Sakakibara Health Integrative Profile (SHIP) database.
This study will examine the extent to which lower doses of a broccoli-derived beverage enhance the detoxication of air pollutants excreted in urine as compared to an maximal dose shown to be effective previously.
Colorectal Cancer is, in non-smokers for both sex, first cause of cancers mortality in Western country. The main risk factors associated with colorectal cancer depend of lifestyle, and processed meat and red meat could be involved in carcinogenesis by cytotoxic and genotoxic compound linked to lipid peroxidation and nitrosation. The aim of this study is to study the impact of the daily consumption of beef, processed or not, on lipid peroxidation induced heme iron ; and to study the impact of the daily consumption of ham, processed or not, on the nitrosilation induced heme iron.
Despite the characterization of many aetiologic genetic changes. The specific causative factors in the development of sporadic colorectal cancer remain unclear. This study was performed to detect the possible role of Enteropathogenic Escherichia coli (EPEC) in developing colorectal carcinoma.
The primary purpose of the study is to evaluate the effectiveness of a naturally occurring clay substance (ACCS100) in reducing harmful effects of aflatoxin exposure (a carcinogen) and fumonisin (a cancer promoter). This clay substance contains of a variety of minerals including calcium, sodium, potassium, and magnesium. UPSN and similar aluminosilicate minerals have been regularly used as dietary supplements by humans and animals, and the safety of this naturally occurring clay substance has been tested in clinical trials. The FDA treats such minerals or nutritional supplements as a drug when tested for potential of lessening the likelihood of disease (i.e., potential for mitigating disease). This study involves the use of an investigational drug called Hydrated Sodium Calcium Aluminosilicate (ACCS100). "Investigational" means that the "drug" has not yet been approved by the U.S. Food & Drug Administration (FDA) for reducing harmful effects mycotoxin exposure in humans.
This study is a 12 week placebo-controlled Phase II broccoli sprout intervention to be conducted in Qidong, P.R. China. One thousand two hundred people from the farming townships will be screened and three hundred eligible individuals will be enrolled in the study. Participants will be randomized into two treatment groups: one will receive a juice beverage containing glucoraphanin- and sulforaphane-rich broccoli sprout extract, pineapple juice, lime juice, and water and the other will receive a placebo beverage containing pineapple juice, lime juice and water. Participants will drink their assigned beverage every evening and provide biweekly urine samples and monthly blood samples. The principal endpoints of this study are pharmacokinetic evaluation of elimination of glucoraphanin/sulforaphane and their metabolites in urine and pharmacodynamic evaluation through measures of urinary levels of exposure biomarkers for dietary and air-borne toxins, which are known to be high in this population.
The long-term outcomes of branched-chain amino acid (BCAA) administration in patients undergoing hepatic resection remain unclear. The aim of this study is to assess the impact of oral supplementation with BCAA on the prevention for the development of liver tumorigenesis in patients undergoing liver resection.
In the United States, overweight (BMI > 25 but < 30 Kg/m2) and obesity (BMI > 30Kg/m2) are increasing at epidemic rates. A significant association exists between being overweight or obese and breast cancer recurrence and survival. However, evidence continues to accumulate indicating that achieving or maintaining a healthy weight for height (Body Mass Index, BMI, 18.5-25Kg/m2) is associated with a reduced risk for breast cancer and with a decrease in breast cancer associated mortality. Despite this, there is a lack of randomized controlled trials exploring this association and how the process of fat loss or being successful in actually reaching a healthy weight for height differentially affects biomarkers for cancer recurrence. Many dietary approaches for weight loss are currently available to the public, and each purports to offer advantages. However, there is little scientific evidence to indicate how these dietary approaches, some of which vary markedly in the foods that they limit or exclude, affect biomarkers for breast cancer risk. In particular, it is not know whether the critical factor in relation to weight and breast cancer is simply weight loss (negative energy balance), irrespective of the manner in which it is achieved, or if certain dietary approaches affect breast cancer risk biomarkers more favorably than others. Published data from our laboratory suggest that dietary pattern does matter, and therefore the goal of this study is to investigate the effects of two popular weight loss dietary approaches that differ in the extent to which they limit carbohydrate or fat consumption (with effects on dietary glycemic load) compared to a usual care group on prognostic markers for cancer recurrence in postmenopausal breast cancer survivors. The investigators hypothesize that in addition to the anticipated effects of fat loss on circulating levels of bioavailable sex steroid hormones, that the effects of excess fat on breast cancer prognosis can be attributed to three interrelated metabolic processes that affect cancer progression: altered glucose metabolism, chronic inflammation and excessive cellular oxidation.