Tag: "form" at biology news
Newly created cancer stem cells could aid breast cancer research
... can also divide and produce the worker cells that form
the bulk of the tumor. These queens are cancer stem cells. Now the lab of Whitehead Member Robert Weinberg has created such cells in a Petri dish by isolating and transforming a particular population of cells from human breast tissue. After being ...
Swarming starlings help probe plasma, crowds and stock market
...e used to detect precisely when ordered patterns form
in everything from plasma in the solar wind and fusion reactors, to crowds of people, or flocks of birds. The technique could even be used to find unusual patterns in stock market behaviour. The researchers began their work in a research group i...
A unique arrangement for egg cell division
... but they are not permanent structures. MTOCs only form
when the division is about to start and accumulate in the cells centre. There, the around 80 individual MTOCs start interacting in a tug-of-war of pulling and pushing each other. This ultimately leads to a self-organized spindle with two poles in whi...
An early ape shows its hand
... locomotor behaviora special adaptation and unique form
of locomtion that left no modern descendants....
Sugar and spice and everything nice: Health differences in newborn girls and boys
...creatine phosphate (CP; a readily available stored form
of energy), lactate, and hydrogen ion (H+) concentration. Histidine concentration, which protects against acidosis, was also determined in baseline tissue alone. The researchers found that the newborn female hearts had accumulated a significant 47...
Weizmann Institute scientists discover a control mechanism for metastasis
...l saying: 'prepare to move.' This signal takes the form
of a substance called a growth factor, which, in a...in fibers comes apart and the protein fibers then form
thin threads on the outside of the cell membrane that push the cell away from its neighbors. In addi...
Lost forest yields several new species
...s biologically important enough to conserve in the form
of a protected area, said Dr. James Deutsch, director of WCS Africa Program. Since few people live there, it would be relatively easy to create a park while supporting the livelihoods of people who live in the landscape....
Argonne wins three R&D 100 awards for innovative technologies
...chnology at leading hospitals. UHRMS represents a form
of computed radiographic technology, which means that instead of using traditional x-ray film to capture images, doctors can use a glass-ceramic imaging plate which then can be fed into a computer and digitized. The Ultra-High Resolution Mammograph...
High-intensity ultrasound may launch attack on cancer, wherever it lurks
DURHAM, N.C. -- An intense form
of ultrasound that shakes a tumor until its cells ...tcomes are often much worse. HIFU in the current form
can only be used to treat the primary tumor, he continued. We now think that HIFU delivered in a dif...
UCLA scientists produce functioning neurons from human embryonic stem cells
...ure and they were, surprisingly, healthy enough to form
synapses. These cells will be excellent for doing ...l allow Sun and her team to study their biological form
and structure, the genes they express, the development of synapses and the electric and chemical com...
Gene variant is associated with brain anatomy, clinical course of ADHD
...gested that carriers of the risk allele [alternate form
of a gene] may also have a unique neuropsychologic...s, both with and without ADHD, having the 7-repeat form
of DRD4 was associated with thinner tissue in areas of the brain known to control attentionthe right...
Link identified between Alzheimer's disease and glaucoma
...cell death. Alzheimer's disease is the most common form
of dementia. Nearly 700,000 people in the UK suffer from dementia and this is expected to exceed one million people by 2025(2). "Many even within medicine fail to realise that the retina, commonly examined by high street opticians when they look at...
UCF research links proteins, stem cells and potential Alzheimer's treatment
...s-model mice, he found that the stem cells did not form
any neurons. Sugaya found that excess amounts of the amyloid-precursor protein (APP), which produces a component of the plaques, a hallmark of Alzheimers, prevent stem cells from becoming neurons. The research team treated Alzheimers-model mice...
UF, French scientists seek test to detect gene doping in athletes
...istinguish a doped gene from a naturally occurring form
of the gene. Ultimately, the test will compare how many copies of the EPO gene are found in an athletes body to levels found in the average person who has not been doping. Our research aims to develop the ability to detect gene doping, primarily ...
New mechanism links smoking to lung damage
...by how much damage it could cause." Hemichannels form
a small gated pathway from the interior of a cell,...an identical hemichannel from an adjoining cell to form
a gap junction. By directly connecting two cells, gap junctions enable them to exchange the chemical...
Multicenter study nets new lung tumor-suppressor gene
...n a series of experiments in mice with a defective form
of a gene called Kras, which drives the formation and growth of lung cancer. They tracked the development of lung cancer in animals with mutated LKB1 and compared it to the experience of animals with abnormalities in either of two well-known tumor-su...
Defects in critical gene lead to accelerated lung tumor growth
...ts in this gene appear to result in a much nastier form
of lung cancer, a disease that is bad to begin wit...ouse model of the most lethal malignancy in man, a form
of lung cancer called squamous cell carcinoma. Lung cancer kills more Americans each year than breas...
How cells change the pace of their steps
...s fetal cells undergo an orchestrated migration to form
functioning tissues and organs. Poorly regulated cell motility during embryonic development may result in some neurological diseases and birth defects such as cleft palate of the mouth. UCSDs new findings may eventually be used to better understand a...
Immunity in social amoeba suggests ancient beginnings
...d by starvation, the single cells band together to form
a slug that can move. Eventually the slug changes to produce cells that perform specific functions spores and stalks. In this new report, Dr. Adam Kuspa, chair of biochemistry and molecular biology at BCM, and his colleagues describe a new kind of c...
Scientists prove that disputed Korean stem cell line comes from an unfertilized egg and not cloning
...es that have undergone in vitro fertilization as a form
of assisted reproduction therapy for infertility. Parthenogenetic ES (pES) cells are derived from embryos created by artificial activation of eggs in the absence of sperm. ES cells generated by somatic nuclear transfer (ntES) are derived from embryos...
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