Tag: "frequent" at biology news

Focused ultrasound relieves fibroid symptoms in women

...cessive menstrual bleeding, enlarged uterine size, frequent urination, pelvic pressure or pain and infertility. According to the National Women’s Health Information Center, fibroids are the primary reason for surgical removal of the uterus, accounting for approximately one-third of hysterectomies performe...

100 percent of pregnant women have at least one kind of pesticide in their placenta

...hormonal system). The results showed that the most frequent pesticides present in the placenta tissue are DDE (92.7%), lindane (74.8%), endosulfan diol (62.1%) y endosulfan-I (54.2%). Among these, the most prevalent was endosulfan-diol, with an average concentration of 4.15 nanograms per gram of placenta (156...

Effect on breast tumors of DNA alternations in 3 genes described

...Similarly, hypermethylation of E-cadherin was more frequent among progestin receptor (PR)-negative cases," said Tao. "Compared to tumors that were both ER- and PR-positive, tumors that were both ER- and PR-negative were more likely to be E-cadherin hypermethylated. "However, hypermethylation of E-cadherin, ...

Cow protein aids in treatment of gastrointestinal disorder

...g that “data suggest that antibiotic resistance is frequent and clinicians are realizing that use of an additional agent may be necessary for therapy.? ...

Study suggests some drug resistance to influenza B medications

...onitoring of strains over time and to the need for frequent rethinking of policies for use of antiviral drugs. While the news about resistance is not good and certainly calls into question some of the current assumptions about drug-resistant viruses, an effective response to this news can help contend with th...

Scientists find new genes for Crohn's disease

...Because IBDs tends to run in families and are more frequent in certain ethnic populations, especially Ashkenazi Jews, scientists have long suspected that they have a significant genetic component. Previous genetic studies have found strong links between Crohn's disease and mutations in two genes, one known...

Darwin's famous finches and Venter's marine microbes

...teria (also known as microbial sex), are also less frequent in marine environments. "By comparing our findings with the Yooseph clusters, we also discovered hundreds of new gene families that hadn’t even been seen before," says Zhai and adds that by adding the diverse GOS data to known profiles, "we were ...

Researchers urge monitoring of bone health during chemotherapy

...imens in which anticancer agents are given at more frequent intervals. Studies have suggested these dose-dense therapies could prolong survival in women with breast cancer. "We are not at all advocating ending G-CSF use," says Weilbaecher, an oncologist with the Siteman Cancer Center at Washington Universi...

Selective marker found to indicate aggressive form of breast cancer

...nable clinicians to monitor these patients through frequent tests of a biomarker and, in doing so, detect the cancer before it has a chance to come back." Basal epithelial tumors lack important molecular targets such as the estrogen receptor, progesterone receptor and Her2. This not only makes positive di...

Scientists uncover new target in cancer mutation puzzle

...ester scientists, while investigating the two most frequent types of mutations in cancer, discovered a possible new route to treatment that would take advantage of the mutations instead of trying to repair them. The research is reported online this week in the journal Nature Structural & Molecular Biology...

Brain networks strengthened by closing ion channels

...xposure to even mild stress, which may explain the frequent worsening of symptoms following exposure to stress. "We find it remarkable to relate a genetic mutation in patients to the regulation by an ion channel of PFC neuronal networks," said Arnsten. ...

New test for most virulent HPV strains under study

...s. Resulting cervical changes may be followed with frequent Pap smears or colposcopy, in which physicians can view the cervix and freeze, excise or vaporize significant cellular changes. For more information about the study, call Study Coordinator Ansley Dennis in Dr. Ferris?office at 706-721-2535. ...

E. coli bacteria migrating between humans, chimps in Ugandan park

...rticularly in areas where the animals are known to frequent garbage piles near human settlements. But this is the first study to document the exchange of E. coli between humans and chimps in a protected wildlife area. It is also the first to find antibiotic-resistant strains in chimpanzees in Africa. "Anti...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...ell and hard clams, in the bays and estuaries they frequent during summer and migrate through during fall and spring. In the early 1980s when Peterson sampled bay scallops in North Carolina sounds in late summer before and after the cownose rays passed through, he found that most scallops survived the ray ...

New study: Preterm birth causes one-third of all infant deaths

... classification, premature birth would be the most frequent cause of infant death. More than a half million babies are born too soon each year and the preterm birth rate has increased more than 30 percent since 1981. Babies who do survive face risks of lifelong challenges of cerebral palsy, mental retardatio...

Researchers link ocean organisms with increased cloud cover and potential climate change

...o becoming brighter, the clouds can also have less frequent precipitation, so you might have a build-up of clouds. Overall, this makes the atmosphere cloudier and reflects more sunlight back into space." In their paper, the researchers estimated that the isoprene emissions reduced energy absorption in the...

How mammals fuel milk production may have implications for cancer

...ient uptake and utilization is consistent with the frequent observation of constitutive activation of the PI3K/AKT pathway in a wide range of human cancers, including those of the breast.? Cancer cells also commonly exhibit increased rates of glucose uptake as part of a shift toward a greater reliance on th...

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

...ections common in tropical countries becoming more frequent occurrences along with the emergence of community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA), according to a study published in the Oct. 15 issue of Clinical Infectious Diseases, now available online. Staphylococcus aureus, or st...

Powerful genome ID method extended to humans

...genomes, in particular, mutate rapidly and contain frequent abnormalities. "That's something that's very hard to detect" by conventional sequencing, Green said, adding that sequencing can simply miss part of a genome. Optical mapping, by contrast, can estimate the absolute length of a genome and quickly...

First biomarker for human sleepiness identified in fruit flies

... Washington University Sleep Medicine Center, is a frequent research collaborator with Shaw. "Despite the tremendous medical and public health consequences of sleep debt, its measurement in humans relies upon unreliable subjective rating scales and expensive, often impractical sleep laboratory testing," Du...

1 2 3 4 5 6