A recent review of large prospective cohort studies and WHI trials found that estrogen plus progestin increases breast cancer risk, while estrogen alone decreases risk in women with a previous hysterectomy. The study proposes that mammography screening differences may explain the observed effects.
Between 1975-2000, US lung cancer mortality declined significantly due to reduced smoking rates. Tobacco control measures such as increased taxes and smoke-free laws contributed to this decrease.
A study found that young adolescents exposed to smoking in movies are at a greater risk of smoking compared to older peers. Early exposure to smoking depicted in movies is associated with an increased risk of becoming established smokers.
Two studies found that CYP2D6 genotypes associated with reduced enzyme activity do not predict clinical responsiveness to adjuvant tamoxifen therapy among postmenopausal women. This challenges the conventional hypothesis that poor metabolizers experience fewer side effects and may receive less benefit from tamoxifen.
Therapeutic cancer vaccines are being evaluated in clinical trials with immune checkpoint inhibitors and small-molecule targeted therapies to overcome immunosuppressive entities. Patients with fewer chemotherapeutic regimens respond better to vaccines, indicating a shift towards combination therapies.
A cohort study and nested case-control study found a statistically significantly increased risk of lung cancer with increasing diesel exhaust exposure among workers and urban populations. Studies suggest stringent occupational and environmental standards are necessary to reduce the health burden of carcinogenic diesel exhaust.
Malnourished cancer patients who received oral nutritional support showed improvements in aspects of quality of life, including emotional functioning and loss of appetite. However, the interventions had no impact on mortality rates or consistent effects on weight gain.
Repeated flexible sigmoidoscopy screenings increased the detection of colorectal cancer or advanced adenoma in participants by 26% and 34%, respectively. This improvement comes with a higher cost and increased need for diagnostic interventions.
A study published in the Journal of the National Cancer Institute found that telephone counseling services doubled the odds of quitting smoking among Chinese-, Korean-, and Vietnamese-speaking smokers. In contrast, a second study on bupropion SR showed promise for African American light smokers during medication phase but lacked long-t...
A study found that HPV DNA testing of self-collected Pap specimens was more sensitive than visual inspection with acetic acid and liquid-based cytology, but less specific. This method could expand China's cervical cancer screening outreach without requiring medical professionals or facilities.
A study published in the Journal of the National Cancer Institute found that younger women with breast cancer experience decreased health-related quality of life, including increased psychological distress, weight gain, and early onset menopause. Personalized treatment approaches are crucial to mitigate these side effects.
A recent study found that adding oxaliplatin to adjuvant chemotherapy for stage III colon cancer patients in the general population improved overall survival rates. The research also showed that this combination therapy was effective across various practice settings, including older and minority patients with comorbid conditions.
Researchers reassessed symptom indices to detect ovarian cancer early on, finding similar results to previous reports and a limited benefit in advancing diagnosis. The study highlights the challenges of detecting ovarian cancer early due to its biology, screening limitations, and clinical characteristics.
Men in the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial had no evidence of a mortality benefit from annual PSA testing compared to usual care. The study found a higher percentage of deaths from other causes among prostate cancer patients diagnosed with PSA screening, indicating over-diagnosis.
A systematic review and meta-analysis of randomized control trials found no improvement in overall survival for adult patients with advanced follicular lymphoma who received high-dose chemotherapy and ASCT compared to conventional-dose chemotherapy alone. The study concluded that HDC-ASCT is not effective as a primary treatment option.
A study found APBIb use increased from 0.4% to 6.6% between 2000 and 2007, with wide regional disparities and racial/ethnic differences in utilization. The authors suggest unwarranted variation in practice may be present, highlighting the need for further research on APBI effectiveness.
A commentary by Michael Stefanek advocates for cancer screening reform to educate the public about potential harms and benefits. Conflicting guidelines and new technologies may lead to overtreatment or under-treatment, and false positives and negatives are a concern.
A study published in the Journal of the National Cancer Institute found that fecal immunochemical testing (FIT) is more effective than guaiac fecal occult blood testing (gFOBT) in colonoscopy screenings, increasing attendance and diagnostic yield while reducing false positives. FIT is also cost-effective and clinically beneficial for d...
A phase III trial found that concurrent chemo-radiotherapy significantly improved the 5-year overall survival of patients with stage II nasopharyngeal carcinoma. The treatment regimen resulted in higher progression-free and distant metastasis-free survival rates compared to radiation alone.
Research from the European Prospective Investigation into Cancer and Nutrition (EPIC) study found that 47.6% of hepatocellular carcinoma cases were associated with smoking, while chronic hepatitis B and C infection was the strongest risk factor. The study also highlights the importance of quitting smoking to reduce liver cancer risk.
Thyroid dysfunction is a common side effect of antineoplastic agents in 20-50% of cancer patients, causing fatigue, weakness, and depression. Researchers recommend screening for thyroid disease and monitoring of thyroid function tests to improve patient quality of life.
A study published in the Journal of the National Cancer Institute found that African-American patients with resected stage II and III colon cancer experienced poorer overall and recurrence-free survival compared to whites. The five-year relative survival rates for black and white colorectal cancer patients were 57% and 68%, respectively.
Research found that drug company stock prices increased by 13.7% before positive phase III clinical trials and decreased by 0.7% before negative trials. The study also showed that stock prices of established companies with positive trial results were more likely to increase than those of smaller companies with negative trial results.
Researchers recommend using plain language, presenting information in a logical order, and emphasizing the element of time to improve patients' understanding of complex medical information. By doing so, clinicians can empower patients to make informed decisions about screening, prevention, and treatment.
A new study suggests that Cervarix vaccine may be as effective in preventing cervical cancer with fewer than three doses, offering potential cost and logistics benefits. The researchers found similar protection levels among women receiving one, two, or three doses of the vaccine.
A new study found that persistent HPV infections are associated with a higher risk of cervical cancer. The researchers suggest that re-testing every two years for HPV-positive women can provide useful guidance on the duration of infection and its risk.
Researchers developed a typology to guide cost-effectiveness analysis of cervical cancer screening and vaccination strategies. They found that targeting racial subgroups with greater inequalities improved health outcomes, reduced cancer incidence, and was more effective and less costly than current methods.
Researchers found that low-risk patients aged 60 or older with small tumors and low-grade disease have mortality rates comparable to the general population. These patients may not benefit from adjuvant therapy, contradicting previous recommendations for almost all patients with hormone-responsive disease.
Researchers found that longer AI use was associated with increased heart disease and bone fractures, but lower rates of blood clots and womb cancer. Use of AIs for 2-3 years after initial treatment may explain the lack of overall survival benefit despite improved breast cancer recurrence
A single flexible sigmoidoscopy screening between ages 55-64 is associated with lower colorectal cancer (CRC) incidence and mortality. The study found that CRC incidence was reduced by 31% among those screened, and CRC mortality was significantly reduced by 38%.
A study found that computer-aided detection (CAD) software used in analyzing three out of four mammograms does not improve detection rates or cancer outcomes. CAD was associated with more false positives, but did not detect smaller or less aggressive cancers.
A study found that women with dense breasts are at higher risk of certain breast cancers and their tumors are more likely to be aggressive. Breast density was also linked to specific tumor characteristics, including ductal carcinoma in situ (DCIS) and estrogen receptor-negative tumors.
A recent study published in the Journal of the National Cancer Institute found that children and adolescent mobile phone users are not at a statistically significant increased risk of brain cancer compared to non-users. The study included data from over 352 brain cancer patients and 646 control subjects, and found no clear exposure-res...
A study of 64,034 women found that those with heart problems, chronic lung disease, and diabetes had lower overall survival rates. Researchers conclude that managing both cancer and comorbidities is crucial for improving patient outcomes.
A new breast cancer risk model quantifies the impact of modifiable lifestyle factors on absolute breast cancer risk. The study predicts a 1.6% to 4.1% reduction in absolute risk among women aged 65, with higher reductions seen among those with positive family history or more non-modifiable risk factors.
A large study published in the Journal of the National Cancer Institute found that patients with Barrett's esophagus have a lower risk of esophageal cancer than previously thought. Men and individuals aged 60-69 were found to be at higher risk, highlighting the importance of personalized risk scores.
Proactive telephone counseling helps increase long-term smoking cessation, with a positive effect on both point prevalence and prolonged abstinence. The study suggests that active recruitment methods do not significantly impact quit rates, contrary to previous assumptions.
Patients with mismatch repair defects have lower tumor recurrence rates, longer remissions, and improved overall and disease-free survival compared to those without the defects. The study suggests that these defects are associated with a reduced response to 5-FU therapy, particularly in patients with inherited defects.
End-of-life care for cancer patients varies significantly between the US and Canada, with higher rates of hospital admissions and emergency room visits in Ontario compared to the US. In contrast, US patients receive more chemotherapy, particularly in the last month of life.
A study published in the Journal of the National Cancer Institute found that patient reports of family cancer history are not highly accurate. The study revealed low to moderate accuracy rates for breast, colorectal, prostate, and lung cancer diagnoses, with higher accuracy rates for first-degree relatives
A study published in the Journal of the National Cancer Institute found that breast cancers discovered between screening mammograms tend to be more aggressive and have a poorer prognosis. The research compared data from women with interval cancers (detected between mammograms) to those detected during routine screening.
A study found that Medicare reimbursement policy significantly affects the use of costly breast cancer therapy, including intensity-modulated radiation therapy (IMRT). The analysis showed a sharp increase in IMRT usage and costs between 2001 and 2005, with billing rates varying by region and treatment setting.
The number of AIDS-defining cancers decreased, while non-AIDS-defining cancers increased significantly between 1991-2005. Lung cancer emerged as the most common malignancy in people with HIV but not AIDS.
Researchers discovered that ionizing radiation drives overexpression and activity of MET through the ATM and NF-κB signaling pathways, making some tumor cells resistant to radiation. Inhibiting MET counteracted this increased invasiveness, promoting apoptosis in tumor cells and enhancing the effect of radiation.
The annual report to the nation on cancer trends finds a slight decline in brain tumor incidence rates, with a notable increase in non-malignant tumors among adults. Non-malignant tumors were found to be twice as common as malignant tumors in this age group.
Researchers found low Rho GDI-alpha protein levels in tamoxifen-resistant breast cancer tumors, predicting recurrence. MTA2 protein levels rose with declining Rho GDI-alpha, combining to predict tumor progression.
The FDA is considering new rules to speed up confirmatory trials of drugs granted accelerated approval, following a review that found six indications remained on the market without confirmation. The median time between accelerated and regular approval was 3.9 years, with some drugs remaining on the market for over 10 years.
A large prospective study of black and white smokers found that mentholated cigarettes are associated with a lower lung cancer incidence and fewer lung cancer deaths than regular cigarettes. The researchers also found that menthol smokers reported smoking fewer cigarettes per day, but had similar quit rates as non-menthol smokers.
Patients with CML taking imatinib in remission after two years have a mortality rate similar to the general population. Despite side effects, survival rates remain high even after eight years of treatment.
Women with DCIS who develop invasive breast cancer in the same breast have higher mortality rates, study finds. Radiation treatment after lumpectomy reduces risk of ipsilateral invasive breast cancer, while treatment with tamoxifen also offers protection.