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Topic: Muscle cell

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	Muscle tech cell tech : Supplement Reviews
		Creatine such as Cell tech is important to muscle strength and growth.
		Muscle tech has made an effective creatine formula by adding precisely 200 mg of alpha lipoic acid to each serving.
		Alpha lipoic acid is an antioxidant, which helps in the reduction of muscle damage and the greater amount of oxidation associated with exercise.
	www.body-fitness-guide.com /muscle-tech-cell-tech.htm (374 words)

	Muscle Cell
		The patients' myoblasts cells (immature cells that become muscle cells) were extracted from thigh muscle.
		Large quantities of the cells were grown in the laboratory for three to four weeks using a controlled cell expansion manufacturing process.
		There was one death due to infection of the device in the LVAD group three months after cell transplantation, and one patient in the CABG group had non-sustained ventricular tachycardia — a fast heart rate that starts in the lower chambers (ventricles).
	www.cardiologyonline.com /journal_articles/Muscle.htm (764 words)

	ScienceDaily: Muscle Cell Transplants Repair Damaged Heart Tissue
		The patients' myoblasts cells (immature cells that become muscle cells) were extracted from thigh muscle.
		Large quantities of the cells were grown in the laboratory for three to four weeks using a controlled cell expansion manufacturing process.
		There was one death due to infection of the device in the LVAD group three months after cell transplantation, and one patient in the CABG group had non-sustained ventricular tachycardia a fast heart rate that starts in the lower chambers (ventricles).
	www.sciencedaily.com /releases/2002/11/021118064844.htm (944 words)

	Muscle - MSN Encarta
		Muscle, tissue or organ of the animal body characterized by the ability to contract, usually in response to a stimulus from the nervous system.
		Skeletal muscle is supplied with nerves from the central nervous system, and because it is partly under conscious control, it is also called voluntary muscle.
		The cells, which show both longitudinal and imperfect cross striations, differ from skeletal muscle primarily in having centrally placed nuclei and in the branching and interconnecting of fibers.
	encarta.msn.com /encyclopedia_761553270/Muscle.html (437 words)

	Muscle (Site not responding. Last check: )
		The muscle coats of the intestinal wall are arranged in an inner circular layer (nearest the columnar epithelium) around the lumen of the intestine, and an outer longitudinal layer.
		Determine which way the muscle bundles have been cut on slides #56 and #57 to decide whether the piece of gut was cut in longitudinal or in cross section.
		surrounding the various muscle fascicles is the perimysium and the connective tissue on one side of the section, continuous with that over the outer surface of the bone, is the epimysium, the sheath of the entire muscle.
	ect.downstate.edu /courseware/histomanual/muscle.html (802 words)

	Function of Muscle
		And the muscle fiber isthe synonym for a muscle cell.
		So the muscle is stiff because the actin and the myosin is arebound to one another, and therefore the muscle cannot change length,and the muscle in the body of the animal the stiff.
		In the resting state, when the muscle cell is not active,the myosin is in the primed condition, it's the high energy myosin,but it is not bound to the actin.
	www.csupomona.edu /~dfhoyt/classes/zoo138/FN_MUSCLE.HTML (8915 words)

	Muscle
		This is the functional unit of muscle and consists of an arrangement of protein from Z-line to Z-line.
		The active state of a muscle cell is measured by the rate of heat evolution during a contraction.
		Upon reinnervation, the muscle cell will become the type that the nerve cell previously served and ACh receptors will occur only under the synaptic junction at the same density that they were previously all over the cell membrane.
	www.sonoma.edu /users/h/hanesda/B324/chap10.html (1901 words)

	Blue Histology - Muscle
		In the course of the synthesis of the myofilaments/myofibrils, the nuclei are gradually displaced to the periphery of the cell.
		The muscle surrounding the upper one-third of the oesophagus is skeletal muscle.
		Intercalated discs invariably occur at the ends of cardiac muscle cells in a region corresponding to the Z-line of the myofibrils (the last Z-line of the myofibril within the cell is "replaced" by the intercalated disk of the cell membrane).
	www.lab.anhb.uwa.edu.au /mb140/CorePages/Muscle/Muscle.htm (3429 words)

	Basic Skeletal Muscle Structure (page 1) (Site not responding. Last check: )
		A closer view of a muscle fiber showing surface openings leading to the insides of tubes called transverse tubules, a meshwork of sarcoplasmic reticula and myofibrils with their A and I bands and Z lines.
		The muscle fiber (cell) is composed of many organelles called myofibrils that run the entire length of the muscle fiber and link to the tendons at the end of the fiber.
		muscle cells, and myofibrils, show a pattern of light and dark banding that runs perpendicular to the long axis of the muscle cell.
	www.bergen.org /ACADEMY/Bio/molbio/AAMB5_Lesson/STRIATEDMUSC/MusclePage1.html (1606 words)

	MUSCLES
		Not part of the muscle, but an important part of its function is the motor neuron (nerve cell) that has one end attached to each muscle cell (the other end of the motor neuron usually is in the brain-remember these are voluntary muscles).
		Back to the muscle cell as a whole: Each muscle is a family of cells (each cell generally the length of the muscle) surrounded by connective tissue and attached to bones by connective tissue (bundles of collagen known as tendons).
		Muscle usage increases the amount of actin and myosin in individual cells (HYPERTROPHY); there is not an increase in the number of cells (since skeletal muscle cells can not divide after birth).
	www.mrs.umn.edu /~goochv/HAP/lectures/muscle/muscle.html (3654 words)

	Muscle Tissue and Muscles
		These include the skeletal muscles which are under voluntary control and are made of striated muscle tissue, the visceral muscles which are under involuntary control and are made of smooth muscle tissue, and cardiac muscle tissue which is found only in the heart.
		After a muscle contracts, ATP (produced in the muscle cells’ mitochondria) is needed to relax the muscle and return the actin and myosin filaments to their normal positions.
		Muscle contraction is initiated when an electrical impulse from a nerve cell reaches its associated muscle cell(s), causing positively- and negatively-charged ions to switch places all along the muscle cell (fiber).
	biology.clc.uc.edu /courses/bio105/muscles.htm (1373 words)

	MDA / Quest 6-2 / Coping With Central Core Disease
		When the nervous system signals the muscle cell to contract, a short burst of calcium is allowed to flood out of the sarcoplasmic reticulum through a special "pore" called the ryanodine receptor.
		MacLennan is currently funded by MDA to study the proteins involved in calcium regulation in muscle cells, and he intends to compare the calcium-regulating proteins and their activity from people with mild CCD to those from people who do not have CCD or have severe CCD.
		He hopes that learning how some muscle cells are able to deal with extra calcium may pave the way for developing treatments for people with CCD whose muscle cells don't seem to have these coping mechanisms.
	www.mdausa.org /publications/Quest/q62ccd2.html (969 words)

	CYCLING PERFORMANCE TIPS - skeletal muscle
		And these individual muscle cells contain two proteins - actin and myosin - which chemically interact and shorten the cell (and along with it the muscle itself) when the muscle cells are stimulated by a nerve impulse.
		The interaction of the actin-myosin complex, which results in the shortening or contraction of the muscle cell, requires the energy in the form of ATP.
		The relative proportion of type I and type II fibers within a muscle varies from person to person and is determined by genetics (ie inheritance from your parents).
	www.cptips.com /muscle.htm (1039 words)

	Muscle Cell Hydration
		muscle cell hydration - the extent of fluid inside the muscle cell.
		The more fluid inside the muscle cell, the larger the muscle cell will be.
		Increasing fluid volume just a few percent can have a big impact on muscle size, tone, strength and theoretically protein and amino acid turnover.
	www.bodybuilding.com /store/ast/muscle_cell_hydration.htm (59 words)

	Muscle Cell Insights a Boon to Research - Heart Disease and other cardiovascular conditions on MedicineNet.com (Site not responding. Last check: )
		This information could help scientists find ways to prevent muscle atrophy experienced by people with diseases such as muscular dystrophy, heart failure and myofibril myopathy.
		The researchers found that mice that lacked BAG3 seemed fine at birth, but their muscle cells rapidly degenerated and were unable to regenerate when the mice started using their muscles to breathe and stand.
		However, the muscle cells in the mice that lacked BAG3 couldn't regenerate.
	www.medicinenet.com /script/main/art.asp?articlekey=64126 (252 words)

	Cell Determination and Differentiation
		A major discovery that has facilitated progress in understanding cell determination and cell differentiation came with the discovery of a family of myogenic regulatory factors (MRFs), which are a group of transcription factors involved in switching on the muscle cell lineage during development.
		The medial myotomal cells form the axial musculature, and the lateral cells migrate to the limbs to form limb muscle.
		Muscle deficiency and neonatal death in mice with a targeted mutation in the myogenin gene.
	www.ucalgary.ca /~browder/Cell_Diff.html (1968 words)

	Muscle Cell Function (Site not responding. Last check: )
		A muscle’s structural pattern is a series of increasingly smaller parallel units.
		The basic functional unit of a muscle is the sarcomere, a section of a myofibril.
		Muscle contraction is the result of these thick and thin filaments sliding past one another.
	www.mhhe.com /biosci/esp/2001_gbio/folder_structure/an/m5/s5/anm5s5_8.htm (198 words)

	UMHS News - Muscle Cell Transplant
		The results come from three patients who had cells from their thigh muscles injected into their heart muscle while they awaited a heart transplant, then allowed their old, damaged hearts to be examined for signs of cell growth after they got a new heart.
		In both arms of the study, a sample of cells was removed from the quadriceps muscle, and treated with enzymes to isolate the satellite cells.
		In LVAD patients, the new cells were placed in cardiac muscle tissue that had been severely scarred and hardened to the point that it can no longer contract sufficiently to help pump blood.
	www.med.umich.edu /opm/newspage/2002/musclecell.htm (1078 words)

	Muscle (Site not responding. Last check: )
		Muscle cells are those that generate tension (force) and when they activate (a.k.a., contract) they shorten and pull whatever is attached to their opposite ends closer together.
		This simultaneous shortening of muscle fibers (cells) due to the shortening of myofibril organelles is the cause of muscle shortening.
		Muscles of the shoulders and arms are not constantly active but are used intermittently, usually for short periods of time, to produce large amounts of tension such as in lifting and throwing.
	www.bergen.org /ACADEMY/Bio/AnP/AnP1/AnP1Tri2/FIGS/MUSCLE/muscle.html (7471 words)

	Fraunhofer IBMT - Cardiac Muscle Cell Sensor (Site not responding. Last check: )
		Embryonic cardiac muscle cells as well as three-dimensional cardiac muscle cell-spheroids combined with microsystems (microfluidic capillaries): A biohybrid model as screening system for pharmaceutical agents, cell and gene therapy in heart- and circulation research.
		Structural and electric attributes are reflected by frequency dependent behaviour of electric impedance of biological tissues and cells as well as electrophysiological shunts of cardiac muscle cells and/or spheroids.
		The combination with cardiac muscle cells as well as 3D-cardiac muscle cell spheroids represents a rapid screening or analysis of therapy (simulation of in vivo conditions for long- term investigations).
	www.ibmt.fraunhofer.de /projects/englisch/index_herzmuskel_en.html (342 words)

	Muscle Tech Cell Tech Supplement - Uses, Benefits, Ingredients And Side Effects
		Research perfomed in Germany indicates that alpha lipoic acid may help transport creatine into muscle where it can be used as energy during exercise.
		It is an antioxidant that help minimize muscle damage and the amount of oxidation that are associated with exercise.
		For the first five days, you should be taken two servings daily, one in the morning and the other twelve hours later.
	www.bodybuilding-workouts.org /supplements/muscle-tech-cell-tech.html (295 words)

	Human Physiology - Muscle
		Skeletal muscles are usually attached to bone by tendons composed of connective tissue.
		Muscle cells, ensheathed by endomysium, consist of many fibrils (or myofibrils), and these myofibrils are made up of long protein molecules called myofilaments.
		As a result, in a relaxed muscle, there is a very high concentration of calcium in the SR and a very low concentration in the sarcoplasm (and, therefore, among the myofibrils and myofilaments).
	people.eku.edu /ritchisong/RITCHISO/301notes3.htm (2619 words)

	Ask A Scientist - Skeletal muscle cell contraction
		A resting muscle fiber is permeable to potassium, so you would expect the ion to flow down its concentration gradient from the inside of the cell to the outside until the concentrations equalize.
		A muscle cell is induced to contract when its Vrest exceeds the threshold, near –40 mV, for an action potential (AP).
		When a muscle fiber is at rest a complex of two molecules, troponin and tropomyosin, sits between actin and myosin and prevents them from interacting.
	www.hhmi.org /cgi-bin/askascientist/highlight.pl?kw=&file=answers/general/ans_030.html (1469 words)

	Nerve and Muscle Cell Division (Site not responding. Last check: )
		Muscle cells on the other hand are another matter.
		However, stem cell research is indicating that they too may reproduce under certain conditions, but those conditions are not natural for it requires re-setting the cell's operons.
		Muscle cells are so specialized in function(G zero) that they are not set up to return to the cell cycle.
	www.newton.dep.anl.gov /askasci/mole00/mole00334.htm (163 words)

	Human Physiology - Muscle
		Muscle cells, ensheathed by endomysium, consist of many fibrils (or myofibrils), and these myofibrils are made up of long protein molecules called myofilaments.
		As a result, in a relaxed muscle, there is a very high concentration of calcium in the SR and a very low concentration in the sarcoplasm (and, therefore, among the myofibrils and myofilaments).
		Because of this arrangement, when skeletal muscle is viewed with a microscope, the ends of a sarcomere (where only thin myofilaments are found) appear lighter than the central section (which is dark because of the presence of the thick myofilaments).
	www.biology.eku.edu /RITCHISO/301notes3.htm (2619 words)

	Human Skeletal Muscle Cells
		When skeletal muscle suffers an injury, quiescent resident myoblasts called satellite cells are activated to proliferate, migrate, and finally differentiate [1].
		Insulin-stimulated glucose transport in cultured human skeletal muscle is mediated by GLUT4 and heparan sulfate proteoglycan is involved in skeletal muscle differentiation [3].
		Skeletal muscle cell culture is a useful model for studying this process of cell differentiation.
	www.sciencellonline.com /products/3500.htm (440 words)

	Retinoic acid inhibits airway smooth muscle cell migration.
		Retinoic acid inhibits airway smooth muscle cell migration.
		Airway remodeling in chronic asthma is characterized by increased smooth muscle mass that is associated with the reduction of the bronchial lumen as well as airway hyperresponsiveness.
		The development of agents that inhibit smooth muscle growth is therefore of interest for therapy to prevent asthma-associated airway remodeling.
	vitamina.researchtoday.net /archive/3/5/405.htm (322 words)

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