Articles tagged with Colorectal Cancer
Recent studies have shown that patients under deep sedation during colonoscopy are more likely to have large polyps detected, which could lead to earlier detection of colon cancer. Additionally, research suggests that removing advanced pre-malignant polyps sooner than recommended may be beneficial in reducing the risk of colon cancer.
A new study by Memorial Sloan Kettering Cancer Center found that most patients with stage IV colorectal cancer do not require surgery to remove the primary tumor. Chemotherapy is an effective treatment option for these patients, allowing them to avoid surgical complications and start treatment sooner. The retrospective study analyzed 2...
Researchers at M.D. Anderson Cancer Center found a significant increase in median overall survival from 8 to 30 months for patients with advanced disease, and a projected five-year survival rate of over 30 percent. The study attributes the improvements to better surgical interventions and new chemotherapeutic agents.
A meta-analysis of 12,294 patients found bevacizumab significantly increases the risk of gastrointestinal perforation, especially in those with advanced colorectal and renal cell cancers. The study also showed a dose-dependent relationship between bevacizumab dose and GI perforation risk.
A novel marker of TSPAN1 has been identified as a significant prognostic indicator for patients with colorectal adenocarcinoma. The protein's expression was found to correlate with histological grade, cell proliferation, lymph nodal metastasis, and TNM staging, leading to a shorter survival period in those with overexpression.
Researchers have identified a common genetic variation associated with the risk of colorectal cancer and its functional implications. The study found that this variation causes the expression of a nearby gene, SMAD7, to decrease, leading to critical signaling events that can set cells on the path to cancer.
A large study found that hormone therapy use was associated with a 28% lower incidence rate of colorectal cancer in older women. However, the mechanisms behind this protective effect are still unclear. The study also found no associations between hormone use and specific molecular markers or DNA methylation patterns.
Researchers at Medical College of Wisconsin discovered that CXCL12 can prevent colorectal cancer cells from adhering to underlying proteins, leading to programmed cell death. The study suggests a potential mechanism for slowing cancer spread and improving patient prognosis.
Researchers analyzed primary care records of 5,477 colorectal cancer patients and 38,314 controls to quantify the exact risks posed by eight clinical features. The study found that rectal bleeding carries a high risk warranting investigation regardless of other symptoms.
Researchers found a possible genetic cause for increased risk of advanced colorectal cancer in African-Americans, with the Pro72 allele linked to higher mortality rates. The study analyzed 137 tumors and found that African-Americans had a higher frequency of this allele, which was associated with shorter survival rates.
Research suggests that folate intake can have dual positive and negative effects, with adequate intake offering protection against cancer but excessive amounts facilitating tumor growth. The optimal level of folate intake varies depending on the individual's specific circumstances, highlighting the need for tailored guidelines.
Research suggests that aspirin can reduce the risk of polyps forming in the colon or rectum, a precursor to colorectal cancer. Studies have shown mixed results regarding the optimal dose and duration of use, but experts call for more evidence on the effects of aspirin on cancer.
Researchers found that inhibiting the enzyme 11β-hydroxysteroid dehydrogenase type 2 (11βHSD2) with licorice extract or by silencing its gene prevents colorectal cancer progression in mice. This approach produces effects specific to the colon and kidney, unlike existing preventive therapies.
The German colonoscopy program has prevented approximately 15,000 cases of colorectal cancer between 2003 and 2010. The program's effectiveness is attributed to the early detection of cancer precursors through endoscopic examinations.
Researchers found that inhibiting an enzyme called 11-beta-HSD2 blocks COX-2 activity, preventing colorectal cancer growth and metastasis. Long-term inhibition did not cause side effects on the heart and blood vessels.
Researchers found that using a novel water method for unsedated colonoscopy improved cecal intubation rates and patient willingness to repeat the procedure. The study also revealed that the duration of the interval between bowel preparation completion and colonoscopy start time predicts prep quality.
Researchers found that gene expression profiles differed between tumor samples from patients who had taken vitamin E, selenium, or both supplements compared to those on placebo. The study provides insight into the effects of preoperative supplement use on prostate cancer gene expression, a potential area for future investigation.
A 15-month study found that patients who received mailed reminders for colorectal cancer screenings were more likely to schedule screenings than those without reminders. This approach increased screening rates by 16% compared to the control group.
Women with higher calcium intake have a lower risk of cancer overall and specific digestive system cancers like colorectal cancer, according to the study. Calcium consumption was inversely associated with an increased risk of these types of cancers in both men and women.
A study published in Archives of Internal Medicine found that mail reminders increased colon cancer screening rates by 44% compared to non-reminded patients. Electronic physician reminders also showed promise, especially among patients with three or more primary care visits, resulting in a 59.5% screening rate.
A study published by the American Cancer Society found that patients seeking health information online are more likely to be aware of and receive the latest cancer treatments. Patients who search for information on targeted therapies like Avastin and Erbitux are up to 3.22 times more likely to receive these treatments.
A new study finds that racial disparities in colorectal cancer screening persist, with significant gaps between white patients and those of other ethnicities, including Hispanics. Increasing screening rates among Medicare recipients have not narrowed these gaps.
Researchers identified guanylyl cyclase C as a molecular marker for metastatic colorectal cancer that can detect occult metastases in lymph nodes, improving risk stratification. About 13% of patients with pN0 colorectal cancer were found to be free of tumor cells, while 87% had results suggesting occult metastases.
Researchers at Thomas Jefferson University found a biomarker, guanylyl cyclase 2C (GUCY2C), that predicts disease recurrence in colorectal cancer. The study revealed that 87.5% of patients had positive GUCY2C expression and 20.9% developed recurrent disease.
Research found capecitabine and irinotecan with bevacizumab to have comparable tumor response rates of 29% and 35%, similar overall survival at 15 months and 24 months. Toxicity was generally well-tolerated in a small patient population.
Researchers found immunological tests to be more accurate in detecting precancerous lesions, identifying over twice as many lesions as HaemOccult test. However, some tests yielded too many false positives, emphasizing the need for high detection rates and reliable all-clears.
A study found that rural physicians in Arizona estimated they could increase their endoscopic procedures by 53.1%, while urban physicians estimated an additional 35.7% with improved compensation. The potential increase is attributed to the growing population of older individuals moving to warmer climates.
A new study reveals that primary care physicians often fail to recommend colorectal cancer screening, even in patients who visit their offices frequently. The research, which analyzed data from nearly 50,000 patients, found that over half of those with regular visits did not receive screening.
A pre-emptive skin regimen can significantly reduce skin-associated toxicities associated with panitumumab for metastatic colorectal cancer treatment. The study found that this approach reduced the incidence of grade 2 or higher skin toxicities by over 50%. Patients who received prophylactic treatment reported improved quality of life,...
Research from Thomas Jefferson University reveals that African-American patients with colorectal cancer are more likely to present with advanced disease and have a worse five-year survival rate. Socioeconomic factors, including access to healthcare screening, may contribute to these disparities.
Studies show that primary care physicians can safely and effectively perform colonoscopies, with quality and safety indicators comparable to those of gastroenterologist specialists. Having a personal health care provider is associated with a three times higher likelihood of colorectal cancer screening, highlighting the potential for po...
Researchers found that trained primary care physicians can perform colonoscopies with a low complication rate and high polyp detection rate, comparable to specialists. This fills the gap in colorectal cancer screening as the US population ages and demand for screenings grows.
A recent study by Charles Drew University found that gay and bisexual black men have the lowest use of prostate cancer testing. The percentage of gay and bisexual black men who received the PSA test was 12-28% lower than heterosexual blacks and 15-28% lower than gay and bisexual whites.
Individuals with the ADH1C*1 gene variant produce more acetaldehyde, leading to greater cellular DNA damage and a heightened risk of colorectal cancer. Chronic drinking is also a known risk factor for colorectal cancer.
A recent study published in Annals of Internal Medicine concludes that screening colonoscopy is associated with fewer deaths from colorectal cancer, but primarily on the left side. The findings emphasize the need for skilled physicians to perform effective colonoscopies.
A recent meta-analysis published in JAMA found that smoking is significantly associated with an increased risk for colorectal cancer (CRC) and death. The study analyzed data from nearly 40,000 new cases of CRC, indicating a 25% higher risk of CRC death among smokers compared to non-smokers.
A Canadian study found colonoscopy is associated with lower death rates from colorectal cancer, but raises concerns about detection of lesions on the right side of the colon. Patients are urged to seek a qualified gastrointestinal endoscopist to perform a thorough colonoscopy.
Researchers found that narrow-band imaging (NBI) was not more accurate than white light colonoscopy in differentiating colorectal polyps during real-time colonoscopy. However, NBI accuracy improved significantly after the endoscopists gained experience with the new diagnostic tool.
A new study by American College of Physicians reveals that colonoscopy strongly reduces mortality from left-sided colorectal cancer, while offering little benefit against right-sided cases. The researchers suggest factors such as incomplete examinations and varying tumor biology contribute to these limitations.
University of Texas Medical Branch researchers have identified a promising new target for colon cancer therapy by mapping the biochemical pathway critical to the spread of tumors. High levels of the enzyme Akt2 are found in association with other cancers, and its inhibition shows promise in stopping colon cancer's spread.
A major study of over 14,000 male physicians found that long-term vitamin E and C supplementation had no significant impact on prostate cancer or total cancer risk. The study suggests that these supplements may not be effective in preventing cancer in middle-aged and older men.
A long-term study found that high insulin-like growth factor binding protein-1 (IGFBP-1) levels reduced overall death risk by over 50%, while high C-peptide levels doubled the risk of death. Lifestyle factors like obesity and physical inactivity are associated with high insulin levels, which can fuel colon cancer growth.
Researchers found two insulin-related proteins that predict survival chances in colorectal cancer patients. High IGFBP-1 levels were associated with lower mortality rates, while high C-peptide levels increased the risk of overall death and other conditions.
Researchers found excellent agreement between CT colonography's bone density measurements and DEXA results, identifying osteoporotic bones in patients. CT colonography may be a cost-effective way to screen more people for osteoporosis without additional radiation.
A recent study found that individuals with lower socioeconomic status are more likely to be diagnosed with late-stage colorectal cancer, leading to poorer survival rates. The research highlights the importance of removing barriers to healthcare services, including screening tests and treatment for colorectal cancer.
A meta-analysis of 15 randomized controlled trials found that bevacizumab increases the risk of venous thromboembolism by 33% compared to controls. The risk is highest for patients with colorectal cancer, with an incidence rate of 19.1%.
A large clinical trial found that calcium supplementation reduced colorectal adenoma recurrence risk by 32% only in those with low magnesium to calcium ratio. This suggests a personalized diet/supplementation regimen considering both nutrients may be more effective than supplementing with one alone.
A recent study found that the cost of treating colorectal cancer can range from tens of thousands of dollars, with newer therapies often costing significantly more than older agents. This variation in costs raises questions about access to care and the value of these treatments for patients.
A study found that surgical removal of small colon polyps is not necessary due to low risk of cancer development. The study suggests that imaging surveillance for isolated small polyps detected during CT colonography may be an alternative to unnecessary colonoscopy procedures.
A study published in the World Journal of Gastroenterology found that overall beta-catenin expression is associated with better differentiation and earlier staging in colorectal cancer. High staining density also predicted superior survival, suggesting an alternative role for beta-catenin beyond the Wnt-signaling pathway.
Researchers found that BRAF mutations are associated with resistance to anti-EGFR therapy in colorectal cancer patients. The study suggests that combination therapy blocking EGFR and BRAF may be a useful approach to increase patient benefits.
Researchers identified an 11-gene signature that separates responders from non-responders to FOLFIRI chemotherapy. The gene signature can predict treatment outcomes with 100% accuracy in a small sample size of 19 patients.
Research reveals endocan protein expression is higher in normal tissues than in colorectal cancer, with positive correlation to tissue differentiation. Elevated serum levels of endocan found in late-stage lung cancer, suggesting its potential as a biomarker.
A study published in the World Journal of Gastroenterology found that CT colonography is accurate for detecting colonic masses or polyps equal to or greater than 10mm. This non-invasive technique replaced double contrast barium enema (DCBE) for evaluating incomplete colonoscopies.
Patients with metabolic syndrome have a significantly higher lifetime risk of colorectal cancer compared to those without the condition. The American College of Gastroenterology recommends closely adhering to published guidelines for colorectal cancer screening.
A Mayo Clinic-led study found that the first generation of a stool DNA test detected 20% of colorectal cancer and precancerous polyps, compared to fecal blood tests. The test's limitations include sample degradation and low sensitivity, but second-generation tests improved detection rates.
A new study by Memorial Sloan Kettering Cancer Center found that routine colorectal cancer screenings may not provide significant life expectancy benefits after age 75. The study suggests that individuals who have had adenomas or colorectal cancer should continue surveillance in this age group.
A new study suggests that colon cancer screening for patients starting at age 55 could save the US at least $2 for every dollar spent. The research found that nearly 45% of uninsured patients who underwent free colonoscopies had polyps, highlighting the need for earlier screening.
A new study suggests that implementing a nationwide CRC screening program for uninsured patients starting at age 55 can reduce healthcare costs by an estimated $2.58 for every dollar spent, saving over $1 million in federal healthcare dollars annually.
A study published in Clinical Gastroenterology and Hepatology confirms that colonoscopy reduces colorectal cancer incidence, with the greatest benefit seen after seven years of follow-up. However, the effectiveness of colonoscopy is reduced for cancers arising in the proximal colon.