Tag: "muscles" at biology news
University Of Texas Southwestern Researchers Find Genetic Switch That Explains Effect Of Exercise On Muscles
... researchers have found a genetic switchthat tells muscles
how to behave. UT Southwestern scientists have fou...n people go jogging, molecularevents happen in the muscles
they are exercising that both enhance theircapability to exercise further and improve their health. ...
Out On A Limb: Young Burro Receives Artificial Leg At Colorado State
...s already walking better, although"building up the muscles
will be a long process." She gave Lee instructions forphysical therapy on the burro but said, "I don't know how much physical therapycan help, because Primrose is on that leg all the time, and once those musclesget tired, there's little more you can ...
Engineering Animation, Inc. Demonstrates Internet Anatomy At Visible Human Project Conference
...lconcepts. "Instead of cutting through a cadaver's muscles
to view the bones, astudent can remove muscles
one at a time by moving the cursor, revealinga human skeleton with a simple click of the mouse." sai...
Oxygen-Carrying Myoglobin Not Necessary For Survival
...e heart and the slow-twitch, or endurance,skeletal muscles
in a number of species. So because of its prevalen... lacking myoglobinwas that the heart and endurance muscles
were nonpigmented or almost whiterather than a rich pink because most of the red color actually come...
Viral Vector Delivers Dystophin Gene To Mouse Muscle
...ectors that deliver the gene for dystrophin to the muscles
ofadult mice with muscular dystrophy without triggering their immune systems toattack the foreign virus. The vector is called a "gutted" virus, because it hasbeen stripped of most of its original genes to make room for the largedystrophin gene. At ...
Scientists Find First Protein In Central Nervous System Junctions
... early in life, and theyextend their body and limb muscles
just like our gephyrin mutants. They alsocan't suckle milk, and our mice had difficulty feeding." Feng and Tintrup performed the definitive test for molybdenum cofactordeficiency by assaying liver and intestine for two unrelatedmolybdenum-req...
Molecular Basis Of Leading Genetic Cause Of Infant Death Discovered
...tor nerve cells that control the body'sinvoluntary muscles
from the head down, originates from defects in the...th of thesecells and results in the atrophy of the muscles
they control. The group's findings will be published in tomorrow's issue of Cell. Afull-page...
New Insight Into Genetic Cause Of Infant Mortality
...s to the death of motor neurons and atrophy of the muscles
controlled by those neurons. Specifically, SMN protein plays a crucial role in the genesis of mRNA from a precursor called pre-mRNA. The conversion of pre-mRNA to mRNA takes place in the cell nucleus during a process called splicing. Splicing require...
Discovery Of New Fossils In Gobi Desert Of Mongolia Provides Important Insight Into Early Mammal Evolution
... the back of the jaw for the attachment of chewing muscles
and a distinct pattern of openings in the skull to accommodate blood circulation, but it lacked many other features that arose in modern marsupials. The juvenile specimen found at Ukhaa Tolgod is particularly important because it died when its adult ...
New Gene Therapy Strategy Keeps Muscles Strong In Old Age: Possibilities Seen For Disease Treatment, But Also For Athletic Or Cosmetic Enhancements
...igators then injected theengineered virus into the muscles
of the mice. IGF-I is a growth factor cri... muscle repair. Undernormal circumstances, damaged muscles
release quantities of IGF-I as anactivation signal to neighboring cells known as satellite cells. Sa...
Rare Fossil Shows Dinosaurs As Fast, Dangerous
...hese carnivorousdinosaurs was pulled back by large muscles
that attached to a distinctive bonyelement of the pelvis. These muscles
pulled the liver back, causing it to actlike a piston. This "hepatic piston" mechanism proba...
Skeletal Muscle Yields Precursors Of Bone Cells That Form Bone When Transplanted Into Animals
...weeks later, the investigators examined thetreated muscles
in the SCID mice and discovered that the injected cells werecapable of participating in bone formation. The investigators are currently conducting experiments to investigate whetherthese muscle-derived cells are pluripotent stem cells and can differe...
Growth Factors Improve Muscle Healing In Animals
...tors created an injury in both gastrocnemius(calf) muscles
of 42 mice. The mice were then divided into three... month, the researchers tested the function of the muscles
and lookedat their composition. Injured muscles
that had received IGF-1 or b-FGF werestronger than ...
What Makes An Arm An Arm And A Leg A Leg
...curl are needed in a handfor grasping while strong muscles
in the legs allow for walking and running. Now res...ppeared at the end on the digits, and leg-specific muscles
wereclearly identifiable. "This is the first time that a gene has been shown to direct a transforma...
New Gene May Help Scientists Understand More About How the Body Grows
...om the neck down, including the neuraltube and the muscles
flanking the spinal cord. Embryos lacking derrière genefunction developed normal heads but only had disorganized tissue where the trunkand tail should have been. Scientists conclude that derrière controls theformation of the posterior ...
Penn Researchers Develop Gene Therapy Technique That Reverses Muscle Membrane Weakness In Muscular Dystrophy Variant
...able to achieve widespread gene transfer to allthe muscles
in that particular area of the body. (Following infusion, the histamine was flushed out of the vascular area with a simple saline rinse,which then encouraged the walls of the vessels to automatically snap back intoposition.) The infusions were wel...
UCSF Scientists Report On A Transcription Factor That Could Stimulate Heart Cells To Repair Damage Caused By Heart Attacks Or Birth Defects
...aryartery anomalies that deprive some of the heart muscles
of adequate bloodsupply; congenital lesions; and a lack of oxygen during birth. In pediatriccardiology and cardiac surgery we have made great strides in diagnosing andtreating the many profound defects that affect the pediatric heart. But when thehea...
'Cousin' Of Snake Venom Toxin Found In Mice
...holine is aneurotransmitter that helps to activate muscles
and causes them to contract.Most who are killed by venomous snakes die of respiratory failure because thealpha-neurotoxins shut down the diaphragm muscles, causing suffocation. While searching for genes that regulate brain development, Heintz andpos...
Breast cancer cells shown to migrate toward hormone source - novel mechanism for metastasis seen
...amellipodia, features that can be thought ofas the muscles
and feet, respectively, of the cell. Prolactin normally functions to prompt the growth and maturation ofbreast tissues as a prelude to lactation during pregnancy. Data from severallaboratories, however, including the Penn team's, have indicat...
Stimulation technique holds new promise for spinal cord injuries
...rical current are delivered to nerves in paralyzed muscles
throughelectrodes placed on or near them. Grill is investigating intraspinal microstimulation, in which electrodes are placed inside the spinal cord, which has matterthat is similar to the brain in its structure and consistency. He believes this kind...
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