A study found that the GSTP1 polymorphism was associated with increased survival in patients with advanced colorectal cancer who received platinum-based chemotherapy. Meanwhile, research on human herpesvirus-8 suggested that the K1 gene may play a role in malignant transformation.
The study found that between 1950 and 1960, male cancer mortality was nearly 50% greater in high socioeconomic areas compared to low areas. By 1998, this gap had narrowed and even reversed, with the lowest socioeconomic groups experiencing higher mortality rates.
A study found that genetic mutation penetrance for melanoma varies by geographic location, with higher risks in countries like the US and Australia. Researchers suggest environmental factors contribute to this variation, contradicting previous assumptions about gene mutations and their impact on disease expression.
Two studies found high discordance between local laboratory tests and central testing facilities, raising concerns about patient eligibility for trastuzumab trials. These discrepancies could lead to unnecessary costs and cardiotoxicity. Trials have since modified their criteria to require central laboratory testing to confirm HER2 status.
Breast cancer researchers found that registry data accuracy is higher for hospital-based services than ambulatory services, suggesting registries can improve cancer care quality. Additionally, a study suggests blocking growth factor receptors may suppress regional metastases but not distant lung metastases.
A retrospective study of 21,232 farmers in Xuanwei, China found that switching from unvented to vented stoves resulted in a 41% reduction in lung cancer risk for men and 46% for women. Indoor air pollution levels decreased by 65% with the new stove installations.
Research findings link insulin-like growth factor I (IGF-I) to decreased lung cancer risk when bound by IGFBP-3. Environmental factors influence DNA methylation patterns in tumor suppressor genes, which may impact cancer incidence. Electro-gene therapy enhances IL-12 protein delivery, triggering long-lasting antitumor responses.
Researchers found that blocking ICAM-1 reduced inflammation and fibrosis in lungs treated with radiation. Mice genetically engineered to lack ICAM-1 showed fewer infiltrating leukocytes and less respiratory distress.
Researchers found that premenopausal women who underwent mastectomy alone had similar survival outcomes regardless of the menstrual cycle phase. In contrast, those who received adjuvant oophorectomy and tamoxifen during the luteal phase experienced better disease-free and overall survival rates. Additionally, studies suggest socioecono...
A randomized controlled trial found that culturally and linguistically suitable outreach and direct mail interventions increased Pap testing rates among Chinese-American women. The study suggests these interventions can help reduce racial and ethnic health disparities in cervical cancer screening.
Researchers found celecoxib induces cell death without blocking COX-2 enzyme. Alternate mechanism involves decreased phosphorylation of Akt and ERK2 proteins. Newer generations of COX-2 inhibitors may be safer and more effective for colon cancer treatment.
Researchers found that women treated with tamoxifen or estrogen had lower levels of myo-inositol in the brain compared to untreated women. The study suggests that both hormones may be neuroprotective and have favorable effects on aging, but further studies are needed to confirm these findings.
A new study has found that women with the highest levels of sex hormones are at roughly twice the risk of developing breast cancer compared to those with lower levels. Additionally, researchers have discovered a potential therapy for glioblastomas using a fusion protein that shows little toxicity. Reproductive hormones have also been l...
Researchers have identified new markers for prostate and colon cancers, as well as a potential tumor suppressor gene. TIG1 was found to be expressed in normal prostate tissue but not malignant tumors, suggesting it may play a role in cancer progression.
A recent study found that women with lower incomes and those insured by Medicaid had worse breast cancer treatment outcomes, including later-stage diagnoses, reduced radiation therapy, and higher mortality rates. Socioeconomic factors accounted for most of the disparities in these outcomes.
A new study found that hormone replacement therapy, particularly estrogen alone, may increase the risk of epithelial ovarian cancer in postmenopausal women with an intact uterus. Women who used sequential progestins with estrogens had a higher risk of developing ovarian cancer compared to those who never used HRT.
Researchers discovered that COX-2 inhibition can prevent Barrett's esophageal cell proliferation and that p16 mutations may impair melanocyte senescence. Additionally, a common polymorphism in the GH1 gene may be associated with a decreased risk of colorectal cancer.
Men treated with ADT experienced increased complications, including impotence (80%), breast swelling, and hot flashes. Despite this, many reported feeling free of cancer after treatment.
A new study found that moderate to high calcium intake can lower the risk of distal colon cancer by 40-50% in women and men. However, excessive calcium consumption did not provide further benefits. Calcium may be the key component reducing colon cancer risk.
Two new studies published in the Journal of the National Cancer Institute suggest that frequent tomato product consumption may reduce prostate cancer risk. Additionally, researchers found a possible role for the Ras gene in neuroblastoma regression and increased levels of GRP growth factor in head and neck cancers.
A study found that high-volume mammography readers in the US detected fewer cancers than their British counterparts, despite meeting lower annual standards. The research suggests re-engineering US screening programs to improve efficiency and quality without increasing interventions.
A recent study found racial and ethnic disparities in the receipt of cancer treatments, with white patients often receiving more aggressive therapy than minority groups. The study analyzed data from 87 studies and found consistent differences in therapy, including less frequent surgery for lung and colorectal cancers among minorities.
Studies found that agnoprotein and T antigen are present in 45% of medulloblastoma samples, with some containing only agnoprotein. The presence of these proteins suggests a potential link between the JC virus and brain tumor development.
African-American patients with non-small-cell lung cancer have a significantly lower one-year survival rate compared to non-African-American patients. Despite similar disease stages and health care disparities, researchers found no difference in outcomes after adjusting for factors such as performance status and socioeconomic status.
Researchers found that raloxifene did not further prevent the growth of breast tumors previously exposed to more than 5 years of tamoxifen. Raloxifene also failed to block the growth of endometrial tumors caused by low-dose estrogen, suggesting it may increase endometrial cancer risk.
A study found that two forms of bias in cause-of-death classification affect the results of randomized trials on cancer screening. Sticky-diagnosis bias biases against screening, while slippery-linkage bias biases in favor of screening. The authors suggest using all-cause mortality to accurately assess the value of screening.
Researchers found that response rates, survival rates, and quality-of-life outcomes are similar between elderly patients (ages 70+) and younger patients with non-small-cell lung cancer. Additionally, studies report an increased risk of lung cancer after Hodgkin's disease treatment, especially in smokers, and analyzed cost-effectiveness...
A new study found that individuals who used tanning devices were 2.5 times more likely to develop squamous cell carcinoma and 1.5 times more likely to develop basal cell carcinoma compared to those who did not use them. The risk of these cancers increased with the age at which participants started using tanning devices.
Researchers investigate DNA repair capacity and its association with melanoma risk, while also exploring the predictive value of HPV testing in managing equivocal Pap tests. Additionally, a study on breast cancer biomarkers finds that measuring uPA and PAI-1 levels may help predict disease course and inform treatment strategies.
Researchers at the Fred Hutchinson Cancer Research Center have developed a new cell-based approach for anticancer drug discovery, which identified 39 new compounds selective for yeast cells with faulty DNA repair enzymes. This approach is adaptable to high-throughput screening methods and complements target-based screening, potentially...
A study found that Chinese-Americans take in less nicotine per cigarette and metabolize it more slowly than whites and Latinos, possibly explaining lower lung cancer rates. This correlation suggests slow nicotine metabolism may contribute to reduced nicotine intake, a factor linked to lower lung cancer incidence.
Researchers have identified matrix metalloproteinases as a key player in the spread of prostate cancer to the bone, offering a new target for treatment. Additionally, a genetic marker may be useful in predicting survival rates for patients with diffuse large B-cell lymphoma, while oral contraceptive use has been found to reduce ovarian...
A new study analyzing oral contraceptive use among women with epithelial ovarian cancer found a significant association between progestin levels and reduced risk. Women using low-progestin/high-estrogen contraceptives were more likely to develop ovarian cancer compared to those using high-progestin/high-estrogen contraceptives.
A follow-up study of 763 long-term breast cancer survivors found they maintain high levels of health, physical functioning, and emotional well-being. Social support was a significant predictor of current quality of life.
New research reveals estrogen can regress tamoxifen-resistant breast tumors by increasing apoptosis. Low levels of estradiol also inhibit tumor growth in raloxifene-resistant breast cancer cells.
Two large studies followed US and British factory workers for extended periods, finding associations between formaldehyde exposure and increased risk of leukemia and lung cancer. However, the authors caution against drawing definitive conclusions about the carcinogenicity of formaldehyde in humans.
A new study confirms previous findings that hair color, number of moles on the legs, and history of sunburn are risk factors for malignant melanoma. The study also found that use of sunbeds and other tanning devices is associated with an increased risk of the disease.