Tag: "mammary" at biology news
Rosemary May Have Anti-Cancer Properties
... known cancer-causing agentto the DNA in the rats' mammary
cells. Scientists believe that that bindingprocess...cent the number of instances of DMBAbinding to the mammary
cells, compared to rats fed a control diet. In a separate experiment, the researchers fed rats a d...
Study Is First Ever To Document Protein Therapy Induces Creation Of New Blood Vessels To The Human Heart
... flow due to atherosclerosis -- in their internal mammary
artery/leftanterior descending coronary artery. During the operative procedure, the growthfactor protein -- in a dosage of 0.01 milligrams per kilogram of body weight --was directly injected into the heart muscle near the blockage. Prio...
USC Study On Soy's Anti-Cancer Effects
...mor-inducing carcinogen. Thetreated rats developed mammary
cancer much later than non-treated controls. Someresearchers have theorized that genistein's protective effect in breast cancercould come from its ability to block estrogen receptors. Lee believes thatgenistein could act upon a number of different ce...
NASA Using Space Incubator To Understand Breast Cancer
...issions to Mars. "We are culturing noncancerous mammary
cells hoping to learn what guides their growth, an... malignancies before they are created. The type of mammary
cells we are growing comes from an individual susceptible to breast cancer, and that susceptibility ...
Goats And Spiders Are Working Together To Create A Novel Material
...sferring the spider gene for the protein into goat mammary
cells andcollecting soluble protein from the milk....the spider's own method ofproduction by using goat mammary
cells. It turns out that the way mammalsproduce milk proteins and spiders make silk proteins are bro...
Researchers Discover How Green Tea May Prevent Cancer
... inhibits the growth of, and kills, canceroushuman mammary
cells in culture, but does not kill cultured, non-cancerous humanmammary cells. "This is one of the first studies to directly link the EGCg in green tea toanti-cancer activity," Dorothy Morre says. The Purdue team also determined how the canc...
Possible Breast Carcinogen Found In Human Milk
...l pollutants that are known to cause cancer in rat mammary
tissuesarepresent in human breast milk, according ...special significance because it is known to induce mammary
tumors infemalerats. "We need to discover the major sources of these exposures," says Josephy. "Cont...
New Protein-Like Polymer Shows Promise For Blood Vessel Replacement
...rally asaphenousvein from the legs or the internal mammary
artery that runs along the inside ofthebreast bone. CalTech's David Tirrell, Ph.D., says, "If a person hasatherosclerosis inone artery, he or she may well have it in others. So, often those replacementarteries arenot available." Even when they can...
Tumor Oxygen Level And Blood Flow Fluctuate, Duke Scientists Discover
...hirst and his colleagues measured oxygen levels in mammary
tumors inseven rats using an electrochemical probe that produces an electrical currentdepending on the amount of oxygen present in the tissue. The scientists found unexpectedly that no tumor had stable oxygen levels. According to Dewhirst, 60 percent...
Dietary Lutein Inhibits Mammary Tumor Growth And Normalizes Immune Balance In Tumor-Bearing Mice
...idant lutein cannormalize immune system balance in mammary
tumor-bearing mice, effectivelyslowing tumor growt...After two weeks,half the mice were inoculated with mammary
tumors. Researchers then assessedthe blood and tissue lutein intake, tumor growth, changes in immun...
Genes Found That Label Cell Proteins For Disposal
...s and breast cancers. "Whenover-expressed in mouse mammary
glands, cyclin D causes breast cancer," Xiongsays. The UNC-CH discovery is the first to clarify a key component of thecellular degradation process or pathway - specifically, the mechanism by whichproteins within cells are selected and "marked...
The Origins Of Hereditary Breast Cancer -- Studies With Knock-Out Mice Reveal Underlying Mechanisms
...ouring a mutated non-functional BRCA-1 gene in the mammary
gland cells whilethe gene remained functional in a...e mice that had their BRCA-1 gene removed from the mammary
glandcells developed a tumour within one year. The scientists noted that anothergene, the p53 gene, ...
University of Hawaii scientists announce first male clone
... cellsrelated to the female reproductive system; a mammary
gland cell was used tocreate Dolly and cumulus cells, which surround developing eggs within theovaries, used to clone the mice. Even cattle cloned in Japan are reported tocome from cells related to the femal reproductive system. To create male mice,U...
Breast cancer cells shown to migrate toward hormone source - novel mechanism for metastasis seen
... of the movement, ormetastasis, of the cancer from mammary
tissues to other sites in the body, thisstudy provides new insights into how prolactin may stimulate diseaseprogression," says Charles V. Clevenger, MD, PhD, senior researcher on the studyand an assistant professor of pathology and laboratory medicin...
Naked mole-rats break the rules on nursing
... grown-up biologists worry whether thereare enough mammary
glands to go around. Naked mole-rat mothers don'...ces more than twodozen pups and has "only" a dozen mammary
glands to feed them, naked mole-ratsociety has a way of keeping peace in the underground nests, acco...
Scientists find genetic links for deadly type of breast cancer
...n Golen and his research team isolated 17 genes in mammary
breast cell linesestablished from a woman with inf...teract todrastically change the behavior of normal mammary
cells." Merajver added that additional research with more patients will be needed tounderstand compl...
Human breast cancer linked to infected mice, says study
...the authors asserted that humans acquire the mouse mammary
tumor virus from mice whichsometimes leads to huma...iral sequence between human breastcancer and mouse mammary
tumor virus. "This is a hypothesis, that if true, gives insight about this major disease, and more ...
AVAX Technologies' AC Vaccine improves relapse-free survival
...s. The studies utilized a specific murine (mouse) mammary
carcinoma, which closely models human breast cancer in terms of its immunogenicity, metastatic properties and growth characteristics. The data illustrated that treatment with DNP-modified irradiated tumor cells improved relapse-free survival of the ...
Scientists issue telomerase caution
...quently, cells grown in culture--such as the human mammary
epithelial cells (HMEC) used in this study--undergo 50 to 60 population doublings before they stop growing or "senesce." To determine whether permanent telomerase expression was necessary to enable HMEC cells to continue growing beyond their usual se...
Dairy scientist advances field of transgenics and knowledge of growth hormones
...ers has also greatly advanced the understanding of mammary
gland development, discovered new information abou...nology worldwide. For his long-term excellence in mammary
gland research in dairy cattle and humans, Akers, has earned Virginia Tech's Alumni Award for Resear...
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