A study analyzed data from over 7,300 people infected with HIV and found that HAART treatment can lower the risk of Kaposi sarcoma and non-Hodgkin lymphoma. However, no significant reduction in risk was observed for other types of cancer. Smoking is a major risk factor for lung cancer among people with HIV.
A new study found that racial and ethnic differences in breast cancer rates can be largely explained by the distribution of risk factors, except in African American women. Among those diagnosed with breast cancer, African American women are more likely to have advanced-stage disease, larger tumors, and estrogen receptor-negative disease.
A study found that women with left-sided breast cancer had a higher risk of death from ischemic heart disease after radiation therapy, but this increased risk declined over time. Advances in radiation techniques have reduced the dose to the heart, resulting in lower mortality rates among women diagnosed with right-sided breast cancer.
Physician experience and annual mammogram volume are associated with improved mammographic accuracy, according to a US study. Physicians who interpret 2,500-4,000 mammograms annually have lower false-positive rates and miss fewer cancers compared to those with less volume.
A new study found that colorectal cancer screening strategies had similar participation rates, regardless of the screening method offered. Tamoxifen use was also associated with an increased risk of endometrial cancer in both pre- and postmenopausal women.
A recent study found that epidermal growth factor receptor (EGFR) gene mutations are more common in never smokers, females, and patients of East Asian ancestry. The mutations were also associated with increased sensitivity to gefitinib and erlotinib, tyrosine kinase inhibitors.
A nested case-control study found that higher HBV viral loads were associated with increased liver cancer risk in Taiwanese men. Genotype C was also linked to a five-fold increased risk of HCC, with effects exacerbated by high viral load levels.
A study published in the Journal of the National Cancer Institute found that increases in managed care market share were not associated with improved quality of care for cancer patients, except for a specific blood test. The authors conclude that expansion of managed care may not improve quality of care for all patients.
Researchers investigated protein pattern reproducibility, DNA methylation for cervical cancer screening, and tissue zinc concentrations associated with reduced esophageal cancer risk. They found that some methods are not biologically plausible, while others may be useful diagnostic tools.
A cohort study in Japan found that daily coffee consumption was associated with a reduced risk of hepatocellular carcinoma (HCC). In contrast, no association was found between coffee consumption and colorectal cancer incidence. The authors suggest further studies to confirm these findings.
A meta-analysis of nine randomized trials found no significant difference in death rates or disease progression between neoadjuvant and adjuvant systemic therapy. However, neoadjuvant therapy was associated with a higher risk of loco-regional disease recurrence when radiation therapy was used without surgery.
A recent study found that only 37% of patients with colorectal cancer received adequate lymph node evaluation, highlighting the need for improved surgical care and pathologic assessment. Additionally, research on non-Hodgkin lymphoma and obesity suggests no association between body mass index and overall risk of either disease.
Research findings indicate that increased sun exposure is associated with improved melanoma survival, while decreased UV radiation exposure may lower non-Hodgkin lymphoma risk. These studies provide new evidence for the potential beneficial effects of sunlight on cancer incidence and outcome.
A study found that breast cancer patients have lower DNA repair capacity compared to control subjects, increasing their risk of breast cancer. Deficient DNA repair capacity was associated with a threefold higher risk in women with poor DNA repair capacity.
A new study found that adding more types to the current HPV DNA test would detect relatively few additional cases of cervical cancer but lead to thousands of unnecessary exams for women without cancer. Meanwhile, esophageal adenocarcinoma has increased by sixfold over the last 25 years, with no clear explanation for the rise.
The addition of locoregional radiation therapy significantly improved breast cancer survival and reduced mortality in high-risk patients. A 20-year follow-up study found that the regimen resulted in a 32% reduction in breast cancer mortality and a 27% reduction in overall mortality compared to chemotherapy alone.
Researchers found that reduced CRBP-I function compromises RAR activity, leading to loss of cell differentiation and tumor progression. The study suggests that somatic CRBP-I loss may contribute to breast cancer development and highlights the need for further research into vitamin A's role in cancer prevention.
A study found that women taking SSRIs with CYP2D6 variant alleles had lower tamoxifen metabolite levels, potentially impacting treatment efficacy. The authors suggest testing CYP2D6 genetic variants to personalize tamoxifen therapy.
A new study found that blocking VEGFR-3 prevented lymphangiogenesis in a mouse model, potentially inhibiting tumor metastasis. The study suggests that targeting VEGFR-3 may be a viable therapeutic strategy to prevent lymphatic vessel growth and tumor spread.
A study of 646 breast cancer survivors in Quebec found that only slightly more women were unemployed at the end of three years compared to a similar group without cancer. Most women who stopped working did so voluntarily, and negative events like firings were rare in both groups.
A study of 124 radiologists found that the accuracy of mammographic interpretation is more closely related to characteristics such as direct feedback and training than years of experience or volume. The study suggests that increasing volume requirements may not improve performance.
An observational study found no increased risk of late-stage breast cancer for women screened every 2 years, except for those in their 40s. Annual screening may also not benefit women with dense breasts.
A study of over 20,000 women found tamoxifen reduces contralateral breast cancer risk by 47% in both African American and white populations. However, tamoxifen use is associated with a higher risk of thromboembolic events, particularly when combined with chemotherapy.
The study found that raloxifene reduced invasive breast cancer incidence by 59% and ER-positive invasive breast cancer by 66%, leading to a 66% and 76% reduction in these cancers after 8 years. No effect on ER-negative or non-invasive cancers was observed.
A long-term study found that women had a higher risk of death from cardiovascular disease and lung cancer after stopping beta-carotene supplements, while the excess risk in men disappeared. The results suggest careful monitoring is needed to document long-term safety and efficacy.
A new study of pesticide applicators found an increased incidence of lung cancer associated with chlorpyrifos exposure. Meanwhile, research on celecoxib-induced apoptosis in human lung cancer cells and the molecular mechanism of DNA repair proteins' relation to malignant melanoma are also reported.
A study of 189 breast cancer patients found no association between paclitaxel chemotherapy and radiation pneumonitis. No hospitalized cases or deaths from the side effect occurred, regardless of treatment group.
BRCA1 mutations are found in only 5% of breast and ovarian cancers, but loss-of-function mutations can significantly increase cancer risk. Researchers review preclinical and clinical evidence to determine if BRCA1 function can predict chemotherapy response, highlighting the need for prospective studies.
A new study suggests that increased selenium levels in the blood are associated with a lower risk of developing colorectal adenoma recurrence. The research pooled data from three randomized trials and found that participants in the highest quartile for blood selenium levels had a 34% decreased risk of developing a new adenoma.
A large cohort study found that eating five or more servings of fruits and vegetables daily may reduce the risk of cardiovascular disease, but not cancer. Green leafy vegetables showed the strongest inverse association with both conditions.
Researchers developed a method combining CYP3A4 phenotyping with UGT1A1 genotyping to optimize irinotecan chemotherapy. Greater height, obesity, and lower physical activity levels are linked to increased endometrial cancer risk.
A new study found that high birth weight is associated with an increased risk of childhood acute lymphoblastic leukemia (ALL) but not acute myeloid leukemia (AML). Researchers used data from health registers in four Nordic countries to conduct a case-control study involving over 2,000 children with ALL or AML and their siblings. They a...
A study found that late-stage breast cancer cases were often associated with an absence of screening, followed by absence of detection or a potential breakdown in follow-up care. Women from lower socioeconomic backgrounds and those without a family history of breast cancer were more likely to be in the absence-of-screening group.
A study found that chemotherapy, but not tamoxifen, is linked to an increased risk of stroke in breast cancer patients. Women who had not completed menopause and those with a history of hypertension or diabetes were more likely to experience a stroke. The researchers conclude that women can use tamoxifen without concern for stroke risk.
Researchers found ductal lavage detected only half of cancers in breasts with known cancer, possibly due to failure to yield fluid or cells misclassified as benign. The procedure's lack of effectiveness casts doubt on its use as a screening tool for high-risk women.
A study found that highly dense breasts are associated with a higher risk of second breast cancer in women who have had ductal carcinoma in situ. Women with dense breast tissue also face a greater risk of invasive and ipsilateral breast cancer.
A case-control study of 300 bladder cancer patients and 300 control subjects found higher levels of arylamine-hemoglobin adducts in cancer patients than in control subjects. The findings suggest exposure to arylamines is a causal factor for most cases of bladder cancer in humans, with potential non-smoking-related sources identified.
Research found that breast density and rapid tumor growth significantly affect mammography's ability to detect cancer in women aged 40-49. To address this issue, the study suggests adjusting screening intervals for these high-risk groups.
A new study found that prostate cancer treatment can significantly impact men's quality of life, with both radical prostatectomy and radiotherapy causing declines in sexual function, urinary incontinence, and bowel issues. The study, which followed over 1,100 men with clinically localized prostate cancer, suggests that the treatments d...
Researchers found no clear association between atrazine exposure and cancer in a large cohort study. Additionally, studies on alcohol consumption and gastric cancer incidence revealed mixed results, while an animal study demonstrated the potential of mammaglobin-A immunotherapy as breast cancer treatment.
A population-based case-control study found no association between SV40 exposure and increased risk of NHL. SV40 seropositivity was detected in 7-10% of patients and less than 2% of controls, indicating a possible cross-reactivity with related human polyomaviruses.
A recent study found that cancer survivors experience significant long-term burdens, including lower quality of life and lost productivity, persisting even beyond 10 years after diagnosis. The burden varies by cancer type, with those diagnosed with shorter-survival cancers reporting greater impacts.
Researchers analyzed data from over 400,000 breast cancer patients to estimate the probability of death after diagnosis. The study found that breast cancer patients with ER-negative tumors were more likely to die from their cancer than those with ER-positive tumors.
Researchers have identified novel compounds that show promise in treating neuroblastoma and glucose-deprived tumors, while also developing new assays to measure the effectiveness of immunotherapy. Additionally, scientists outline best methods for determining the health benefits of diet and exercise.
Researchers recruiting patients from high-risk clinics for cancer intervention studies risk introducing bias, as controls are more likely to receive interventions than some case patients. This can lead to a false impression of intervention efficacy or underestimate its harm.
A new study has identified five chromosomal regions that are likely to harbor prostate cancer susceptibility genes. The study found evidence of a gene on the long arm of chromosome 17 and four other regions that might hold susceptibility genes. Additionally, researchers have discovered that men who carry a specific mutation in the MIC-...
A randomized clinical trial showed that adjuvant chemotherapy and immunotherapy for colon cancer patients offer no disease-free or overall survival benefits after 10 years. The improvements in 5-year survival rates observed in the past have disappeared over time, suggesting that newer chemotherapy regimens may be more effective.
A new study found that Akt pathway activation is associated with better response rates and reduced disease progression in lung cancer patients treated with gefitinib. The researchers identified P-Akt positivity as a key marker for predicting patient response, but not P-MAPK positivity.
A study found that low levels of high-density lipoprotein (HDL) cholesterol are associated with an increased risk of postmenopausal breast cancer in overweight and obese women. The association was strongest in women who gained weight over the years of follow-up.
A study found that state-mandated reimbursement policies were associated with an increase in phase II clinical trial enrollment, but not overall or phase III enrollment. The authors suggest that knowledge and attitudes about trials held by physicians and patients play a greater role in participation than state mandates.