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Tag: "cancerous" at biology news

Possible brain hormone may unlock mystery of hibernation

...e extreme cold to destroy abnormal tissue, such as cancerous tumors. ...

New Research Shows Artificial Light at Night Stimulates Breast Cancer Growth in Laboratory Mice

...atonin also plays a key role in the development of cancerous tumors. “We know that many tumors are largely dep...o laboratory mice. Once these cells developed into cancerous tumors, the tumors were implanted into female rats where they could continue to grow and develop. T...

Loosen leash on cancer protein 'watchdog,' researchers say

...ad a family trait that typically made them develop cancerous lesions in their intestines, but our main goal was to see whether p53 sped up the aging process. Fortunately, we got more kinds of good news than we initially expected." Mice with such a predisposition generally developed about 50 intestinal lesions...

Scientists discover new genetic subtypes of common blood cancer

...s possible, creating a comprehensive atlas of this cancerous genome. First, they used a technique called high-resolution array CGH (comparative genomic hybridization) to analyze samples from 67 newly diagnosed patients provided by Shaughnessy in Arkansas. The CGH technique compared the genomes of a normal blo...

Faults in newly discovered breast stem cells may lead to tumours

...metimes experience a recurrence of their cancer. A cancerous stem cell could provide one possible explanation for such a recurrence. Chemotherapy works by targeting cells that are dividing rapidly, which is typical behaviour of cancer cells. But an errant stem-like cell may be more resistant to chemotherapy ...

Creation of antibiotic in test tube holds promise for better antibiotics

...reventing farnesylation possibly could prevent the cancerous effects, because the mutant protein would no longer be localized at the membrane, Nair said. An accompanying Perspectives article in Science, written by chemist David W. Christianson of the University of Pennsylvania, suggests that nisin's five thio...

Curry and cauliflower could halt prostate cancer

...he injections significantly retarded the growth of cancerous tumors. Using PEITC and curcumin in tandem produced even stronger effects. The group went on to evaluate the therapeutic potential of curcumin and PEITC in mice with well-established tumors, and the results showed that PEITC or curcumin alone had li...

Cancer cells suppress large regions of DNA by a reversible process that can be tackled

...ent the development of tumours". Our cells become cancerous when the normal controls over cell growth and death go awry. This deregulation has traditionally been linked to DNA mutations of single genes or deletion of large sections of the chromosome. However more recently it has become clear that gene silenci...

Chemotherapy gel may fight breast cancer and reduce breast deformity

...d not only release chemotherapy slowly to kill the cancerous cells left behind after surgery but that also would fill in the dimples and sometimes quite significant indentations that are common after breast surgery and radiation." To test their idea, the researchers encapsulated a common breast cancer chemoth...

Predicting success

...rial was injected into special mice with different cancerous growths. The team created computer algorithms (instructions for computers) that allowed them to verify the connection between the amount of material that found its way into the growth and the pressure of the fluids inside the tumor tissue. The Weizma...

Researchers create pigs that produce heart-healthy omega-3 fatty acids

...owed for 4.4 years, during which time 37 developed cancerous tumors. Overall, the database used in the study represents more than 32,000 distinct genotypes of different cells within the tumors. Using computational techniques to analyze the data, the researchers calculated measures of diversity inside the tumo...

Evolutionary biology research techniques predict cancer

...owed for 4.4 years, during which time 37 developed cancerous tumors. Overall, the database used in the study represents more than 32,000 distinct genotypes of different cells within the tumors. Using computational techniques to analyze the data, the researchers calculated measures of diversity inside the tumo...

Liver cancer linked to cellular repair pathway

...r to the growing body of evidence suggesting these cancerous tumors are generated by stem-like cells. Stem-like cells in the liver require the Hedgehog pathway for survival, the researchers discovered. These primitive cells are similar to stem cells, but differ in basic ways involving cell reproduction. Hedge...

Parents need to be educated about HPV vaccinations for daughters

...t in pre-cancerous changes; these can develop into cancerous changes in these women, particularly if they are u...ave the effect of preventing the pre-cancerous and cancerous changes that HPV infection can trigger. Women and men need to be more aware of HPV infection and wha...

Preclinical study of a new brain tumor therapy

...us research that showed how to distinguish between cancerous and healthy cells through the detection of molecules known as epidermal growth factor receptors (EGFR). The glioblastoma cells overexpress EGFR (that is, in comparison with normal brain cells, they have many more of these molecules on their surface)....

NIH launches comprehensive effort to explore cancer genomics

...rt the collection, processing, and distribution of cancerous and healthy, control tissue samples to Cancer Genome Characterization Centers and Genome Sequencing Centers. The genes and other genomic targets identified will be sequenced by the Cancer Genome Sequencing Centers using high-throughput methods simila...

Common viruses may cause cancer

...hether aneuploidy is a cause or a consequence of a cancerous cellular state is the crux of a current debate. In a recent study, Dr. Yuri Lazebnik and his colleagues at Cold Spring Harbor Laboratory observed, fortuitously, that normal cultured human cells are fused by the action of the Mason-Pfizer Monkey Viru...

The nude mouse tale: Omega-3 fats save the life of a terminal cancer patient

... alive, and has even gained a little weight." The cancerous tumors found in D.H.'s lungs have shrunk to 10 percent of what they were in 2000, according to last year's computed tomography (CT) scans. What worked with DH is not a common medical treatment such as chemotherapy or surgical excision. It was a nut...

Stem cell microenvironment reverses malignant melanoma

... for influencing tumor cell fate and reversing the cancerous properties of metastatic tumor cells, such as melanoma," said Mary J. C. Hendrix, in whose laboratories at Children's Memorial Research Center the experiments were conducted. An article describing the findings by Hendrix and her laboratory group wa...

Role of microRNA identified in thyroid cancer

...ny strands of RNA is enough to clearly distinguish cancerous thyroid tissue from otherwise normal tissue, scien...d 23 miRNAs that were significantly altered in the cancerous tissue when compared with the normal samples, with three of the miRs ?miR-146, miR-221 and miR-222 ?...

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