Many women get unnecessary mammograms before breast reduction surgery

Getting a mammogram before breast reduction surgery is not required or recommended. But thousands of younger women with no known breast cancer risk still get them, a new study shows.

Quelle: Sciencedaily

Genetic testing does not cause undue worry for breast cancer patients

As genetic testing for breast cancer has become more complex, evaluating a panel of multiple genes, it introduces more uncertainty about the results. But a new study finds that newer, more extensive tests are not causing patients to worry more about their cancer risk. (Mehr in: Cancer News — ScienceDaily)

DDT in Alaska meltwater poses cancer risk for people who eat lots of fish

Children in Alaska whose diet includes a lot of fish from rivers fed by the Eastern Alaska Mountain Range may have a long-term elevated risk for cancer because of insecticides — including DDT — in the meltwater. (Mehr in: Cancer News — ScienceDaily)

Study discovers 40 new genetic variants associated with colorectal cancer risk

The most comprehensive genome-wide association study, or GWAS, of colorectal cancer risk to date has discovered 40 new genetic variants and validated 55 previously identified variants that signal an increased risk of colon cancer. (Mehr in: Cancer News — ScienceDaily)

Weight during adolescence may affect pancreatic cancer risk in adulthood

New research has linked adolescent obesity with up to a four-fold increased risk of pancreatic cancer later in life. The study’s results also suggest that overweight and even higher weight within the ’normal‘ weight range in men may increase pancreatic cancer risk in a graded manner. (Mehr in: Cancer News — ScienceDaily)

Air pollution may be linked to heightened mouth cancer risk

High levels of air pollutants, especially fine particulate matter (PM2.5) and to a lesser extent, ozone, may be linked to a heightened risk of developing mouth cancer, suggests the first study of its kind. (Mehr in: Cancer News — ScienceDaily)

Processed meat consumption linked to breast cancer risk

Studies on red and processed meat consumption with breast cancer risk have generated inconsistent results. A new analysis has now examined all published studies on the topic. Comparing the highest to the lowest category in the 15 studies included in the analysis, processed meat consumption was associated with a 9% higher breast cancer risk. (Mehr in: Cancer News — ScienceDaily)

Newer contraceptive pills linked to reduced ovarian cancer risk in young women

New types of combined oral contraceptives (containing both lower doses of estrogens and newer progestogens) are associated with a reduced risk of ovarian cancer, in young women, finds a large study. (Mehr in: Cancer News — ScienceDaily)

Eight of 10 people with cancer risk genes don’t know it

Genomic screening shows that more than 80 percent of those who carry an identifiable genetic risk for breast, ovarian, prostate, and pancreatic cancer don’t know it. (Mehr in: Cancer News — ScienceDaily)

Eating foods with low nutritional quality ratings linked to cancer risk in large European cohort

The consumption of foods with higher scores on the British Food Standards Agency nutrient profiling system (FSAm-NPS), reflecting a lower nutritional quality, is associated with an increased risk of developing cancer. (Mehr in: Cancer News — ScienceDaily)

E-cigarettes can damage DNA

The popularity of electronic cigarettes continues to grow worldwide, as many people view them as a safer alternative to smoking. But the long-term effects of e-cigarette usage, commonly called ‚vaping,‘ are unknown. Today, researchers report that vaping may modify the genetic material, or DNA, in the oral cells of users, which could increase their cancer risk. (Mehr in: Cancer News — ScienceDaily)

Low-protein diet during pregnancy increases prostate cancer risk in offspring, rat study shows

Experiments with rats show that intrauterine protein restriction induces sex hormone imbalance, which appears to favor development of cancer in old age. The rate of prostate tumor development reached 50 percent among the old rats submitted to low-protein diet during pregnancy and lactation alike. (Mehr in: Cancer News — ScienceDaily)

Mutation ‚hotspots‘ in DNA: Research could lead to new insights on cancer risks

New research has identified ‚hotspots‘ in DNA where the risk for genetic mutations from transcription errors is significantly elevated. Understanding how these errors occur is important since DNA errors play a large role in many types of cancer. (Mehr in: Cancer News — ScienceDaily)

Adherence to healthy diets associated with lower cancer risk

A diet that encourages both healthy eating and physical activity and discourages alcohol consumption was associated with a reduced overall cancer risk, as well as lower breast, prostate, and colorectal cancer risks. (Mehr in: Cancer News — ScienceDaily)

Colorectal cancer risk factors decrypted

Cologne researchers find the connection between obesity and tumor growth (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)

Big Data analysis identifies new cancer risk genes

Researchers have developed a new method to systematically identify genes contributing to heritable cancer risk. Their work is a success story for data sharing and openness in science. Just three researchers identified new cancer genes only using publicly available data. (Mehr in: Cancer News — ScienceDaily)

Higher body fat linked to lower breast cancer risk in younger women

An analysis has linked higher body mass index, or BMI, to lower breast cancer risk for younger women, even for women within a normal weight range. (Mehr in: Cancer News — ScienceDaily)

Blood vitamin D levels linked to colorectal cancer risk

A new study authored by scientists from more than 20 medical centers and organizations finds that higher circulating vitamin D concentrations are significantly associated with lower colorectal cancer risk. (Mehr in: Cancer News — ScienceDaily)

Long periods of viral suppression shown to reduce cancer risk in aging HIV population

Early, sustained antiretroviral therapy (ART), which results in long-term viral suppression, helps to prevent AIDS-defining cancers and also non-AIDS-defining cancers, to a lesser degree. However, patients with long-term viral suppression still had excess cancer risk compared to uninfected patients. (Mehr in: Cancer News — ScienceDaily)

Genome-editing tool could increase cancer risk

Therapeutic use of gene editing with the so-called CRISPR-Cas9 technique may inadvertently increase the risk of cancer, according to a new study. Researchers say that more studies are required in order to guarantee the safety of these ‚molecular scissors‘ for gene-editing therapies. (Mehr in: Cancer News — ScienceDaily)

Lung cancer risk drops substantially within five years of quitting, new research finds

Just because you stopped smoking years ago doesn’t mean you’re out of the woods when it comes to developing lung cancer. That’s the ‚bad‘ news. The good news is your risk of lung cancer drops substantially within five years of quitting. (Mehr in: Cancer News — ScienceDaily)

Cancer risk rises as patients wait for diagnostic testing

The longer a patient with a positive screening result waits for diagnostic testing, the worse their cancer outcomes may become, according to a literature review of breast, cervical, colorectal, and lung studies. (Mehr in: Cancer News — ScienceDaily)

Risk of a second breast cancer can be better quantified in women carrying a BRCA mutation

The risk of a second breast cancer in patients with high-risk BRCA gene mutations can be more precisely predicted by testing for several other genetic variants, each of which are known to have a small impact on breast cancer risk. (Mehr in: Cancer News — ScienceDaily)

Third-hand smoke found to increase lung cancer risk in mice

Researchers have identified third-hand smoke, the toxic residues that linger on indoor surfaces and in dust long after a cigarette has been extinguished, as a health hazard nearly 10 years ago. Now a new study has found that it also increases lung cancer risk in mice. (Mehr in: Cancer News — ScienceDaily)

New prostate cancer risk model could better guide treatment

A new model could change treatment guidelines for nearly two-thirds of men with localized prostate cancer. (Mehr in: Cancer News — ScienceDaily)