Sentences with phrase «than a cell membrane»

Because the milk fat layer is an unconventional extracellular source of mRNA and its membrane is more fragile than cell membranes [16], we examined the vulnerability of this RNA to degradation (Table S1).

A nanometer is many times smaller than a red blood cell, a bacterium, a virus and even smaller than a cell membrane.

Not exact matches

But like many other, overly optimistic hydrogen - based fuel entrepreneurs, Dean, whose company made a specialized membrane that was to be used in the fuel - cell modules, watched the ground open beneath his feet as the commercial take - up proved to be far slower than anyone anticipated.

Hypothesis Traces First Protocells Back to Emergence of Cell Membrane Bioenergetics Dec. 20, 2012 — A coherent pathway - which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells - has been traced for the first time in a major hypothesis paper in Cell this week.

Origin of Life: Hypothesis Traces First Protocells Back to Emergence of Cell Membrane Bioenergetics Dec. 20, 2012 — A coherent pathway — which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells — has been traced for the first time in a major hypothesis paper in Cell this week.

ORIGIN OF LIFE: Hypothesis Traces First Protocells Back to Emergence of Cell Membrane Bioenergetics Dec. 20, 2012 — A coherent pathway — which starts from no more than rocks, water and carbon dioxide and leads to the emergence of the strange bio-energetic properties of living cells — has been traced for the first time in a major hypothesis paper in Cell this week.

Because of the rapidity with which it occurs (less than a tenth of a second) the researchers argue that this influx is caused by micro-tears in cell membranes ripped open by the force of the micro-explosion;

«The [electric] charge of these bacterial membranes is significantly higher than that of a healthy cell,» Hedrick says.

A few microscopic techniques can focus light deep into the intact brains of dead animals to study its structure without damaging the axons, but much of this light is scattered away by the fatty lipid membranes that surround individual cells, making the technique less than perfect.

Because they act while embedded within the cellular membrane, transmembrane proteins have proven to be more difficult to study than proteins that operate in the watery solution that make up the cells» cytoplasm or in the extracellular fluid.

«Because of their chemical structure, omega - 3's behave very differently in cell membranes than any other fat,» says Susan Allport, author of The Queen of Fats: Why Omega - 3s Were Removed from the Western Diet and What We Can Do To Replace Them.

«The cells are likely able to capture more bacteria per period of time than if the membrane were completely flat,» he says.

Specifically, the bipolar neurons expressed more genes for membrane receptors and ion channels than non-bipolar cells, particularly those receptors and channels involved in the sending and receiving of calcium signals between cells.

In new research, published in an article in The Journal of Neuroscience, Burger and Oline — along with Dr. Go Ashida of the University of Oldenburg in Germany — have investigated auditory brain cell membrane selectivity and observed that the neurons «tuned» to receive high - frequency sound preferentially select faster input than their low - frequency - processing counterparts — and that this preference is tolerant of changes to the inputs being received.

CF can arise from more than 2000 mutations in one gene, which cripple the ion channels that move salt and water through cell membranes.

They move up to ten times slower than in their natural environment, namely the cell membrane.

It is clear, however, that volatile anesthetics, which are more soluble in lipids than in water, primarily affect the function of ion channel and neurotransmitter receptor proteins in the membranes of nerve cells, which are lipid environments.

In a study using mice, the researchers found that using Dox and TRAIL in the pseudo-platelet drug delivery system was significantly more effective against large tumors and circulating tumor cells than using Dox and TRAIL in a nano - gel delivery system without the platelet membrane.

When they killed the animals a week later, they found that the virus had broken apart dystrophin in their hearts and that the membranes of heart cells infected with Coxsackie B virus were more permeable to blue dye than uninfected cells.

But intriguingly, the Lokiarchaea appear to have more than 100 genes coding for sophisticated cellular functions such as deforming cell membranes and forming and transporting bubble - like vesicles around the cell — functions that are usually only seen in eukaryotes like us.

Among the team's findings, reported in the 30 November issue of Science: AAV poked through the cell membrane in about 64 milliseconds, much faster than expected, and reached the nucleus in about 15 minutes.

They observed that this was about a thousand times lower than in mammalian cells or in the internal membranes of the yeast cell.

However, emulating the functionality of cell membranes requires much more than simply mimicking their structural characteristics.

Confocal images of sections of the seminiferous tubules illustrated the existence of various iPS cell - derived EGFP - positive cells, including flattened fibroblast cell - like myoid at the outermost layer of the tubules, spermatogonial stem cells with spherical nuclei closest to the basement membrane and spermatocytes with distinctive chromatin closer to the lumen than spermatogonial stem cells (Figure 6D).

When found in tumor cell membranes, HER2 correlates with a better prognosis than when it is in the cytoplasm or nucleus.

Dinh has more than 15 years of experience in direct methanol, hydrogen polymer electrolyte membrane (PEM), and zinc / air fuel cells at national laboratories and in industry.

Rather than fight the infection after it invades, particular changes to cell membrane receptors can completely prevent plague bacteria from infecting cells.

Taking a walk in the forest, laughing with friends, doing Tai Chi or charging your chakras will do more for your chi circulation, bioelectricity (the electric potential across cell membranes) or photonic energy (light) than any biscuit ever will.

50x more Super Oxide Dismutase than any other medicinal mushroom (enzyme that cleanses liver, protects cell - membrane and promotes longevity)

Its hepatoprotective properties and cell membrane stabilizing activity make it an effective treatment for kidney diseases, and some findings show that it may have a more protective effect than deferoxamine against kidney iron deposition at a dose of 200 mg per kg.

They provide the building blocks for your cell membranes and a variety of hormones and hormone like substances that are essential to your health, and saturated fats from animal and vegetable sources (such as meat, dairy, certain oils, and tropical plants like coconut) provide a concentrated source of energy in your diet — a source of energy that is far more ideal than carbohydrates, and that's why I chose these two specific «keys» in combination, because when you cut down on carbs, you generally need to increase your fat consumption.

As the intestinal lining of the small bowel becomes more damaged over time, substances larger than particle size such as disease causing bacteria and fungus, potentially toxic molecules and undigested food particles pass through these weakened and «leaky» cell membranes.

Chloride moves easily through cell membranes and delivers nutrients, than removes excess waste upon exiting.

NOTE: Because they're highly unsaturated (more so even than other polyunsaturated fats), EFA's are exceptionally susceptible to oxidation and turn rancid rapidly, a metamorphosis that undermines their value to cell membranes.

Since saturated fats tend to be more solid than unsaturated fats at a given temperature, they help give the cell membrane its necessary stiffness and integrity for proper function (23).

Measurement of fatty acid content in red blood cell membranes shows less biological variability than measurement in plasma or serum.