Sentences with phrase «human hair cell»

Although the fruit fly bristle channel behaves a lot like human hair cells, not everyone is convinced.

Not exact matches

«That means things that are smaller than the diameter of a human hair, like cells, parts of cells or the fine structure of fibers.»

When the human body breaks down a foreign substance, one can typically find chemical by - products in hair or urine that provide clues about how it has interacted with cells.

So far, gene therapy attempts have only resulted in partial improvements of hearing in mouse models of specific human deafness forms that did not include severe anomalies in hair cell structure.

A nanometer is less than 1/1, 000 the size of a red blood cell and about 1/20, 000 the diameter of a human hair.

The accuracy for human eye and hair color is much higher at 0.9, and chronological age — based on T cell receptors — is the same.

One clinical trial involves the drug CGF166, a one - time gene therapy, which, if proven successful in humans, could regenerate new hair cells within the cochlea that can signal the part of the brain that processes sound.

The source of new hair: For the first time, researchers have been able to take human dermal papilla cells (those inside the base of human hair follicles) and use them to create new hairs.

The paper is titled, «Microenvironmental reprogramming by three - dimensional culture enables dermal papilla cells to induce de novo human hair follicle growth.»

They wanted to count and measure individual hair cells, and human hair was too thick for that.

Still, by identifying the human hairless gene as an important master switch in regulating cell death in a hair follicle — a discovery that could lead to gene therapies for unwanted hair growth — Christiano emerged as a new star in the field, and a glamorous one.

In human hair shafts, several outer layers of flattened cuticle cells surround a layer of cortical cells (making up the cortex), which surrounds the central core of cells, called the medulla.

In the chamber, tubes about the thickness of a human hair were lined with endothelial cells as in natural blood vessels.

«By analyzing mice with the WNT10A mutation, as well as tissues from human patients with WNT10A mutations, we found that WNT10A regulates the proliferation, but not the maintenance, of stem cells in hair follicles,» said Sarah Millar, PhD, vice chair for Basic Research in the Department of Dermatology.

The plane's frame needed to be strong enough to carry a human pilot, several days» worth of resources and four heavy batteries, but light enough to fly on the solar energy absorbed by the 17,000 solar cells — each as thin as a human hair — mounted on its wing, fuselage and horizontal stabilizer.

And because the human body breaks down water's constituent atoms of hydrogen and oxygen to construct the proteins that make hair cells, those cells can preserve the record of a person's travels.

But then ISS itself serves as a home to six microbe - filled humans who stay in orbit for as long as 6 months each and routinely shed skin cells when they exercise, comb their hair, eat, and do other activities that potentially can contaminate their isolated «built environment.»

Oysters don't have ears like humans, but hair cells similar to ones in the inner ear are found on the gills.

We already knew that E. coli can grip to human cells using hair - like appendages that have tiny protein hooks on their tips, but until now no one had worked out the structure of this protein, called FimH, or how it interacts with human cells.

In contrast, perovskite solar cells depend on a layer of tiny crystals — each about 1,000 times smaller than the width of a human hair — made of low - cost, light - sensitive materials.

Malinski's team has developed unique methods and systems of measurements using nanosensors, which are about 1,000 times smaller in diameter than a human hair, to track the impacts of Vitamin D3 on single endothelial cells, a vital regulatory component of the cardiovascular system.

Dubbed «face mites,» D. folliculorum are actually tiny arachnids that inhabit hairs throughout the human body and consume skin cells and oils.

Differences in hair cells help fish sense water flow patterns — and may also help humans sense different sounds.

Desmond Tobin, a cell biologist at the University of Bradford in the U.K., says that the findings, together with a recent study that found that EPO and HIF - 1α levels increase in human hair under low - oxygen conditions, support the notion that human skin responds to oxygen.

Séralini's report in BioMed Research International describes how pesticides kill cultured human cells, with the hair - raising conclusion that pesticides may be vastly more toxic than assumed by regulatory authorities.

Human inner ear organoid with sensory hair cells (cyan) and sensory neurons (yellow).

They can penetrate a depth of 50 cell layers or more — which is about 200 micrometres, twice the width of a human hair.

In humans, deafness is most often caused by damage to inner ear hair cells — so named because they sport hairlike cilia that bend when they encounter vibrations from sound waves — or by damage to the neurons that transmit that information to the brain.

The epithelial stem cells, when implanted into immunocompromised mice, regenerated the different cell types of human skin and hair follicles, and even produced structurally recognizable hair shaft, raising the possibility that they may eventually enable hair regeneration in people.

Treatment has focused on electronic devices like hearing aids or cochlear implants because once lost, human auditory hair cells do not grow back.

To do so, they placed each rare cell in a microwell (with a diameter roughly half the width of a human hair).

Human - associated bacteria disperse into and throughout the built environment by three primary mechanisms: (1) direct human contact with indoor surfaces; (2) bioaerosol particle emission from our breath, clothes, skin and hair; and (3) resuspension of indoor dust containing previously shed human skin cells, hair and other bacteria - laden partiHuman - associated bacteria disperse into and throughout the built environment by three primary mechanisms: (1) direct human contact with indoor surfaces; (2) bioaerosol particle emission from our breath, clothes, skin and hair; and (3) resuspension of indoor dust containing previously shed human skin cells, hair and other bacteria - laden partihuman contact with indoor surfaces; (2) bioaerosol particle emission from our breath, clothes, skin and hair; and (3) resuspension of indoor dust containing previously shed human skin cells, hair and other bacteria - laden partihuman skin cells, hair and other bacteria - laden particles.

The largest human cells are about the diameter of a human hair, but most human cells are smaller — perhaps one - tenth of the diameter of a human hair.

A typical human cell might be one - tenth of the diameter of your hair (10 microns).

St. Jude Children's Research Hospital scientists have used clues from studying fish and chickens to advance efforts to regrow hair cells in humans.

A team of researchers from the University of Chicago, Northwestern University, the University of Illinois at Chicago and the U.S. Department of Energy's (DOE's) Argonne National Laboratory have engineered silicon particles one - fiftieth the width of a human hair, which could lead to «biointerface» systems designed to make nerve cells fire and heart cells beat.

In recent years, researchers have developed so - called «senolytic» drugs that wipe out senescent cells in aging mice and mouse models of age - related disease, exploiting the high dependence of these cells on specific biochemical survival pathways.9, 10 In these studies, senolytic drugs have restored exercise capacity9 and formation of new blood and immune precursor cells11 in aging mice to near youthful norms, and prevented or treated mouse models of diseases of aging like osteoarthritis, 12 fibrotic lung disease, 13 hair loss, 14 atherosclerosis, 15,16 and age - related diseases of the heart itself.9 UNITY Biotechnology is leading a growing charge toward the clinic, with human clinical trials expected to begin in 2019.

The group recently produced data showing that stem cells from human hair follicles also differentiate into contractile smooth muscle cells.

CAMBRIDGE, Mass. — Within almost every human cell is a nucleus six microns in diameter — about one 300th of a human hair's width — that is filled with roughly three meters of DNA.

In fact, they repeatedly generated iPS cells from the tiny number of keratinocytes attached to a single hair plucked from a human scalp.

Their method, published ahead of print in the Oct. 17, 2008 online edition of Nature Biotechnology, not only provides a practical and simple alternative for the generation of patient - and disease - specific stem cells, which had been hampered by the low efficiency of the reprogramming process, but also spares patients invasive procedures to collect suitable starting material, since the process only requires a single human hair.

A team of researchers, including neuroscientists from Washington University School of Medicine in St. Louis, has developed a wireless device the width of a human hair that can be implanted in the brain and activated by remote control to deliver drugs to brain cells.

The gold - platinum nanoparticles, which are about hundred thousand times thinner than a human hair, also are efficient at converting laser radiation into heat and killing the cancer cell, making them promising for another cancer treatment known as photo - thermal therapy.

Their primary role is to ensure the life of the cells in the human body through various processes: regulation of blood sugar, optimization of muscular contraction, skin and hair health, participation in enzymatic reactions, etc..

Sulfur is the third most abundant mineral in the human body, present in every cell, with its greatest concentration in hair, skin and nails.

First described in 1842 by Gustav Simon, a French dermatologist, Demodex mites are normal skin inhabitants of many mammals, and > 140 species of Demodex have been identified (2 in humans, 3 in dogs).1 The mites live in hair follicles as well as the sebaceous glands and ducts and feed off of sebum, cells, and debris from the epidermis.2, 3 In dogs, the mites are passed from the bitch to her puppies through close contact while nursing.

Four layers of Plextronics» inks used in a solar cell would measure about 1/1, 000 th the thickness of a human hair, Thompson said, and the substances are designed to conduct power and light in an inexpensive, cost - efficient way.

Researchers in the Perelman School of Medicine at the University of Pennsylvaniahave determined the role of a key growth factor, found in skin cells of limited quantities in humans, which helps hair follicles form and regenerate during the wound healing process.

(2013) Growth Factor Responsible for Triggering Hair Follicle Generation During Wound Healing Identified, Found in Cells of Short Supply in Humans.

Ultraviolet A Ultraviolet B Thin layer of dead cells Hair Squamous cells Epidermis Basal layer Sweat gland Melanocyte cells Dermis Basal cell Blood vessels Figure 20.22 Science: structure of the human skin and the relationships between ultraviolet (UV - A and UV - B) radiation and the three types of skin cancer.