stem 2 10

Tag: "stem" at biology news

AIDS-related cognitive impairment exists in two separate forms

...ve that the cells of origin are the 10-20 immortal stem cells that reside at the bottom of each crypt. The job of these stem cells is to replenish the entire lining of the colon that turns over every five days. However, a mut...

Markers of gene, protein, or micro-RNA activity predict outcome in prostate and colorectal cancers

...ve that the cells of origin are the 10-20 immortal stem cells that reside at the bottom of each crypt. The job of these stem cells is to replenish the entire lining of the colon that turns over every five days. However, a mut...

Wisconsin scientists grow two new stem cell lines in animal cell-free culture

...consin-Madison, have developed a precisely defined stem cell culture system free of animal cells and used it to derived two new human embryonic stem cell The new work, which is reported today (Jan. 1, 2006) in the journal Nature Biotechnology, hel...

Mutation in blood stem cells provides clues to cancer development

A mutation in blood stem cells occurs in patients with a blood disorder cal...o acute leukemia ?have a mutation expressed in the stem cell, the point at which the body's blood cells become structurally and functionally specialized. ...

Taipan venom no snake oil

...r blood clotting agent called Factor X which could stem blood flow in a matter of seconds. A drug lead based on Factor X is being evaluated for clinical trials by bio pharmaceutical development company QRxPharma. "Australian snakes literally have a two-pronged attack when they bite their prey," Dr St Pi...

Stem cell transplants improve recovery in animal models for stroke, cerebral palsy

A single dose of adult donor stem cells given to animals that have neurological dama...chers administered a dose of 200,000-400,000 human stem cells into the brain of animals that had experienced significant loss of mobility and other function...

Brittlestar provides new model for stem cell research

... using the brittlestar as a new model for studying stem cells, allowing them to do experiments that avoid ...s Dr Sam Dupont, "It is a more realistic model for stem cell biology because we can study the cells in the living organism, not just in culture in the lab."...

Illegal trade is propelling rare turtle toward extinction, new report

...at www.traffic.org. WWF has worked for decades to stem the illegal trade in wildlife which is the second largest illegal trade in the world, next to drugs, and a major driver of the decline in wildlife worldwide. "Collectors and exotic pet enthusiasts need to make sure that the specimens they purchase...

Faults in newly discovered breast stem cells may lead to tumours

...ute, using a mouse model, have discovered the rare stem cell that drives the formation of all breast tissu... tissue develops. The identification of the breast stem cell is also likely to provide clues about how breast cancer develops and how rogue cells evade curr...

Liquid crystals show promise in controlling embryonic stem cells

...t in real time on the differentiation of embryonic stem cells. Differentiation is the process by which embryonic stem cells gradually turn into function-specific types of adult cells or so-called "cell lineages," inclu...

'Shuttling' protein possibly key to resilience of cancer cells

... their properties and are considered to be "cancer stem cells." The hypothetical cancer-resistance role of cancer stem cells could explain why tumors return after treatment. If stem cells prove to be critical to cancer'...

Growth factor-promoting angiogenesis expressed in tumor cells and normal neurons

Scientists have discovered that a stem cell factor overexpressed both in brain tumor cells and in neurons following brain injury promotes tumor survival by inducing angiogenesis. The research study, published in the April issue of Cancer Cell, examines the interaction between tumor cells ...

AIDS drug from sunflowers

...m. The pathogen responsible for the dreaded 'white stem rot' can, if the weather conditions are unfavourable, destroy an entire sunflower crop. However, some sunflowers survive the fungus attack more or less unscathed. They do this by producing specific antibodies which eventually put a stop to the fungus...

Insects and mammals share common fat-building pathway, study suggests

...the Hh pathway in mammals determines whether adult stem cells are fated for fat or bone. The findings suggest that drugs that target the Hh pathway might prove useful for the treatment of osteoporosis, diabetes, obesity, and lipodystrophy, a disease characterized by the absence of fat, said the researcher...

Measuring artery repair cells could become new heart disease test

...ggressively." ALDH is produced in high amounts by stem cells in the bone marrow as part of the process of...ers have used ALDH assays to measure the number of stem cells in the bone marrow, so the team has extended this assay to detect levels of EPCs, which are pr...

How can we protect patients with weakened immune systems from influenza?

...rvous system, who are treated with a novel type of stem cell transplant. Both chemotherapy and stem cell transplants involve suppressing the patients' immune defenses. A third group of patients has ch...

Potential heart benefit found in stem cells

...fic Session, scientists continue to explore mature stem cell sources for potentially significant cardiovas...scular medicine. "We hope that the exploration of stem cells derived from new sources may bypass some of the debate that is preventing research progress ri...

St. Jude projects 90 percent cure rate for ALL

...ents have led to more skilled use of cancer drugs, stem cell transplantation and treatment of ALL that invades the central nervous system, according to Pui. "We are now testing the feasibility of omitting irradiation for all patients and reserving this treatment for only those children who suffer a relap...

Advanced genomics and proteomics improve the diagnosis and treatment of a deadly lung disease

...lopmental events ranging from brain development to stem cell differentiation. The study was led by Jenni...rence pathway plays a role in prodding blank-slate stem cells down developmental pathways to become specific kinds of cells or tissues. It may also play rol...

Molecule does more than slice and dice RNA

...lopmental events ranging from brain development to stem cell differentiation. The study was led by Jenni...rence pathway plays a role in prodding blank-slate stem cells down developmental pathways to become specific kinds of cells or tissues. It may also play rol...

1 2 3 4 5 6 7 8 9 10