Articles tagged with Colorectal Cancer
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A study found that smoking is associated with molecularly defined DNA changes and a subtype of colorectal cancer that emerges more frequently among older women. The researchers suggest that epigenetic modifications may play a role in the development of smoking-related colorectal carcinogenesis.
Researchers have identified hydrophobic proteins as potential biomarkers for colorectal cancer detection. The study used two-dimensional gel electrophoresis and mass spectrometry to analyze protein profiles from colorectal cancer tissues, revealing differentially expressed proteins related to tumor stages, grades, and patient gender.
A study led by Dr. Sohn DK demonstrated the safety of endoscopic piecemeal resection (EPMR) for large sessile colorectal polyps. The research showed low relapse rates in patients with benign polyps after EPMR, but higher recurrence rates in malignant lesions. The authors suggest that complete removal of cancer cells is crucial to preve...
A new study reveals that disparities in cancer stage and treatment account for the majority of excess deaths among uninsured and Medicaid-insured rectal cancer patients. Improving insurance coverage and reducing cost-related barriers to primary care and high-quality treatment can help mitigate these disparities.
A new study found a strong association between smoking and the presence of flat adenomas (precancerous polyps) in the colon. The study suggests that smoking may explain why smokers often present with colorectal cancer at a younger age and at a more advanced stage than nonsmokers.
The American Society for Gastrointestinal Endoscopy (ASGE) has issued guidelines addressing ethnicity and gastrointestinal diseases. The guideline recommends that colorectal cancer screening begin at age 45 for average-risk African-American men and women, emphasizing the importance of early detection in reducing mortality rates.
Researchers developed a non-invasive imaging technique combining PET and CT scans without bowel preparation, detecting all significant polyps found by colonoscopy. Patients preferred this method over colonoscopy due to its comfort and lack of sedation.
Researchers found that African American women are more aware of the importance of screening and are more willing to undergo the procedure, while men report barriers such as lack of trust in the healthcare system and fear of the procedure. Despite these differences, both groups recognize the benefits of early detection and prevention.
A meta-analysis found that the G allele of PPAR-γ gene polymorphism 34 C>G decreases colon cancer risk, indicating its potential as an early diagnosis and treatment target. The study confirms previous data linking the polymorphism to CRC risk.
A study presented at the ARRS 2010 Annual Meeting found that FDG-PET/CT accurately confirmed a suspected colorectal cancer recurrence in 40 out of 71 patients. This early detection enables improved treatment planning and targeted patient care for those with recurrent colorectal cancer.
Researchers examine data on minority and older populations to understand adherence to recommended screening guidelines. Studies find that virtual colonoscopies did not decrease the use of traditional optical colonoscopies for colorectal cancer screenings.
Research at Mayo Clinic reveals stool DNA testing can identify two types of colorectal pre-cancers in IBD patients and serrated polyps. The tests show a high detection rate for these precancerous lesions, offering promise for improving colon cancer prevention.
A recent study published by Mayo Clinic has found that older women with diabetes are at a more than doubled risk for certain types of colorectal cancer. The research team analyzed data from over 37,000 participants and identified associations between diabetes and specific molecular markers.
Researchers at Ohio State University discovered that microRNA-155 can silence genes protecting against DNA mutations, contributing to cancer progression. The study suggests miR-155 expression may be a key stratification factor in cancer prognosis and treatment.
A single sigmoidoscopy examination between ages 55 and 64 significantly reduced colorectal cancer mortality by 43% and incidence by one-third in those screened. The study found a lasting protective effect of screening, with 59% of cases detected during screening and only a few post-screening detections.
Researchers discovered a genetic variant that affects cancer protection from statin drugs, enabling personalized use of the drug. The study suggests offering patients a test to determine if they have the right gene profile to benefit from current statins.
Researchers at Fox Chase Cancer Center have found that a new form of naproxen, called nitric oxide-donating naproxen (NO-naproxen), can block early molecular changes leading to colorectal cancer development while reducing gastrointestinal toxicity. This novel agent may be more effective than standard naproxen in inhibiting tumor growth.
Researchers found a significant association between high fiber intake and reduced colorectal cancer risk when using food diaries, but no association was found with food frequency questionnaires. The study suggests that accurate measurement of dietary components remains a challenge in studies of diet and cancer risk.
A genetic test identifies a specific gene variant that affects how statins control both colorectal cancer and cardiovascular disease risk. The study found that statins have more benefit for reducing both colorectal cancer risk and cholesterol in the gene's long version.
Researchers at UAB Comprehensive Cancer Center discovered four microRNA biomarkers that predict patient survival in colorectal cancer, with differences in outcomes between Caucasian and African-American patients.
A new study reveals that Hispanics living in areas with low endoscopy capacity are less likely to undergo colorectal cancer screening. The study found a modest increase in screening rates as endoscopy capacity improved, suggesting that addressing local capacity constraints could help reduce disparities in screening.
Research found a significant association between high LRP16 expression and early disease progression or death in patients with colorectal cancer. The study suggests that LRP16 expression may serve as a molecular marker for predicting prognosis.
A new study by the National Cancer Institute found that health care utilization, rather than biology, plays a more important role in colorectal cancer disparities among African Americans. The study revealed that blacks were less likely to receive follow-up colonoscopies after screening, leading to delayed diagnosis and treatment.
A recent study found that blacks in the US are less likely to follow up on abnormal colon cancer screening test results, highlighting disparities in healthcare utilization. The study analyzed data from a large national trial and found that 62.6% of black participants went for a diagnostic colonoscopy, compared to 72.4% of white partici...
A large-scale study of 10,000 adults found that virtual colonoscopy identifies more unsuspected cancers outside the colon than within it. The majority of these cancers were detected at an early stage and have positively affected survival.
Studies reveal significant health disparities among Asian Americans, Native Hawaiians, and Pacific Islanders, with culturally appropriate care shown to reduce cancer rates and heart disease. Immigrant women face high risk of death from breast cancer, while obesity and high blood pressure are major concerns for Native Hawaiians.
Two studies found that using the Third Eye Retroscope (TER) during colonoscopy detected 13.2% more polyps than standard colonoscopy alone, including 11% additional adenomas. The TER improved polyp detection rates significantly with experienced endoscopists.
A recent study found that new chemotherapy drugs for metastatic colorectal cancer can increase life expectancy by 6.8 months, but at a cost of $37,100 per patient. The cost-effectiveness of these treatments is disputed, with the study estimating a cost of $99,100 per quality-adjusted life year gained.
A new study found that obesity is associated with a higher risk of developing colorectal tumors lacking microsatellite instability. The study also revealed that the relationship between body mass index and adult weight gain differs for tumors with varying levels of MSI.
A study published in World Journal of Gastroenterology found that the mean age of colorectal cancer in China increased across four regions, with East Guangdong having the highest mean age. The anatomic distribution, histological type, and differentiation type also varied significantly between regions.
Expression of EpCAM and ABCG5 within tumor buds stratify patients with colorectal cancer into prognostic subgroups, particularly those with node-negative disease. These biomarkers may identify patients at high risk of poor outcome, warranting adjuvant therapy.
A study found that individuals who had colonoscopies performed by non-gastroenterologists, such as general surgeons or internists, were at a higher risk of developing subsequent colorectal cancer. In contrast, gastroenterologists were more proficient at colonoscopy and had a reduced incidence of CRC.
Certain patients with inflammatory bowel disease have an increased risk of developing colorectal cancer. The AGA recommends individualized surveillance plans based on each patient's unique situation, taking into account disease duration, primary sclerosing cholangitis, and family history.
Advanced breast cancer diagnosis among black women is 30-90% higher than among white women between 1992 and 2004. The disparity in advanced colorectal cancer also widens over time. Black women are more likely to be diagnosed with aggressive, hormone-receptor-negative breast cancers that are difficult to detect and treat.
A survey found that most patients are interested in obtaining a video recording of their colonoscopy procedure, with younger patients more willing to pay for the service. Awareness of missed lesions during colonoscopy is a significant predictor of interest in having a video recording.
A study published in Radiology found that computed tomographic colonography (CTC), or virtual colonoscopy, is a safe and effective screening tool for older adults. The advanced neoplastic prevalence was 7.6 percent, with no significant difference in accuracy compared to younger patients.
Researchers at George Mason University are conducting a clinical trial to treat late-stage colorectal cancer patients with tailored therapies based on their tumor's protein profile. The trial uses a novel drug target mapping technology and Gleevec, a medicine typically prescribed for leukemia and gastrointestinal tumors.
Two studies by University of Pittsburgh researchers found that surveillance colonoscopy is being overused in low-risk patients and underused in high-risk patients. The studies suggest that colonoscopy use should be aligned with patient risk to improve healthcare spending.
Researchers found that nine cases of colorectal cancer were diagnosed over 7,626 person-years of observation, with most cancers detected at early stages. The study highlights the importance of close follow-up for patients with a history of advanced adenoma.
A new study published in the Journal of the National Cancer Institute found that colonoscopies significantly reduced the prevalence of left-sided advanced colorectal neoplasms by 85% in a community setting. The study, which analyzed data from 3,287 participants, also showed no significant reduction in right-sided advanced neoplasms.
A new study found that MSH6 mutation carriers have a high risk of developing colorectal and endometrial cancers, as well as cancers associated with Lynch syndrome. The estimated cumulative risks to ages 70 and 80 years were 22% and 44% for colorectal cancer in men, and 26% and 44% for women.
Key advances in DNA sequencing technology and gene mutations have identified candidate cancer genes that contribute to colorectal cancer. The study also highlights the importance of understanding biological pathways deregulated in colon cancer, which can form the basis of new therapeutic agents.
A large-scale case-control study found no association between GSTM1 and GSTT1 null genotypes and increased risk of gastric and colorectal cancer in Koreans. Smoking, alcohol consumption, and age did not modify this association.
Men with a history of nonmetastatic colon cancer who engage in moderate to vigorous physical activity have a significantly lower risk of death from colon cancer and any cause. The study found that men who exercised for more than 27 MET hours per week had over 50% lower mortality rates compared to inactive men.
Researchers at Dana-Farber Cancer Institute found that men with colorectal cancer who engage in regular exercise have a 53% higher chance of surviving without the disease. The benefit of exercise was seen across various factors such as age, cancer progression and previous physical activity.
The German ICGC network will analyze 300 tumor samples of two childhood brain tumors, medulloblastoma and pylocytic astrocytoma. Researchers aim to identify cancer-specific changes and develop new treatment approaches with targeted drugs.
Adding cetuximab to neoadjuvant chemotherapy significantly increases tumor response rates, making more patients eligible for potentially curative surgery. The treatment also improves the proportion of tumors deemed resectable, with a notable increase after treatment.
Scientists at the University of Wisconsin-Madison School of Medicine and Public Health have identified a critical link between two signaling pathways that contribute to the development of colorectal tumors. The study reveals how CRD-BP binds to and increases GLI1 messenger RNA, leading to cancer-promoting gene activation.
New research reveals that African-American patients with colorectal cancer are more likely to be diagnosed with advanced disease and have a lower likelihood of undergoing surgical procedures compared to Caucasians. This disparity can be attributed to unequal access to care, leading to poorer survival rates.
A study comparing optical diagnosis with conventional histopathology found that optical methods accurately identified up to 93% of small colorectal polyps. The method also enabled quicker follow-up colonoscopies and saved patients an estimated £6560 in clinical appointments.
Studies highlight racial disparities in gastrointestinal disease, particularly colon cancer and Barrett's Esophagus, among African Americans, Latinos, and women. These disparities underscore the importance of education, early screenings, and potentially more aggressive screening tactics for these populations.
A study found that unsedated colonoscopy for primary colorectal cancer screening is as effective as sigmoidoscopy in terms of patient acceptance and need for sedation. The procedure eliminates risks associated with sedation, reduces recovery time, and decreases costs.
A new study found that Jewish survivors of World War II have a higher risk of developing cancer, with increased risks observed for breast and colorectal cancer. The study, which analyzed data from over 300,000 Israeli Jews, suggests that early exposure to extreme stressors during childhood may increase cancer susceptibility later in life.
Researchers found that aspirin and folic acid do not affect inflammation markers in patients with colorectal adenomas. However, low-dose aspirin was found to stabilize C-reactive protein levels, which may be affected by high folate intake.
Women with metastatic colorectal cancer tend to live longer than men, with those under 45 years old experiencing the greatest survival advantage. However, this benefit disappears with age, suggesting that hormones may be contributing to better outcomes in younger patients.
A new study found that investing in colorectal cancer screening programs could reduce treatment costs by more than half. The study suggests that the increasing use of expensive cancer drugs will make screening programs more cost-effective, making them a desirable investment for governments and insurance companies.
Researchers have developed two new blood tests that can aid in the early identification of patients with gastrointestinal (GI) cancers, making diagnosis simpler, cost-effective, and more acceptable to patients. The tests use DNA methylation to detect cancerous cells and show high sensitivity and specificity rates.
A new study published in the Journal of the National Cancer Institute found that fecal DNA methylation can detect gastric and colorectal cancers. Methylation patterns were more likely to be found in advanced tumors, with detection rates of 57% for gastric cancer patients and 75% for colorectal cancer patients.
Researchers have discovered genetic biomarkers relevant to CRC, allowing for personalized medication and improved survival rates. The integration of conventional agents with novel targeted therapies has led to median overall survival exceeding two years in metastatic CRC.
Regular postdiagnosis aspirin use may reduce the risk of dying from colorectal cancer, with a nearly 30% lower risk seen in patients taking aspirin at least twice a week. The benefit is strongest among patients with COX-2-positive tumors.