|
| |
| | Glycogen - Wikipedia, the free encyclopedia |
 | | Glycogen phosphorylase is the primary enzyme of glycogen breakdown. | | | Therefore, the many nonreducing end-branches of glycogen facilitate its rapid synthesis and breakdown. | | | Glucagon is a common treatment for this type of hypoglycemia. |
|
http://en.wikipedia.org/wiki/Glycogen
(714 words)
|
|
| |
| | Glycogen Structure |
| | Glycogen structure is important to its physiological role | | | All three of the enzymes involved in the breakdown of glycogen will be discussed further in lessons 8.2 and 8.3. | | | The enzymes involved in the synthesis and breakdown of glycogen are found |
|
http://www.db.uth.tmc.edu/faculty/alevine/1521_2000/glycogen.htm
(629 words)
|
|
| |
| | Glycogen Metabolism |
| | Thus glycogen breakdown is inhibited when ATP and glucose-6-phosphate are plentiful. | | | The major product of glycogen breakdown is glucose-1-phosphate, arising from Phosphorylase activity. | | | Explore at right the structure of muscle Glycogen Phosphorylase. |
|
http://www.rpi.edu/dept/bcbp/molbiochem/MBWeb/mb1/part2/glycogen.htm
(1092 words)
|
|
| |
| | UltRunR - Glycogen (Carbo) Loading |
| | An additional point is that someone who is not fit will not benefit from carbo-loading whether he or she takes the old school approach of depletion followed by loading, or the new school approach of precision tapering concurrent with high carbohydrate intake. | | | The elite endurance athlete in day-to-day life typically has twice the muscle glycogen levels as that of the most expertly 'loaded' average athlete. | | | However, the first component of the routine, that you left out, was a glycogen depleting exercise session. |
|
http://www.ultrunr.com/glycogenloading.html
(1178 words)
|
|
| |
| | Muscle Glycogen Resynthesis and Bodybuilding |
| | Stimulation of glycogen synthesis and lipogenesis by glutamine in isolated rat hepatocytes. | | | Supercompensation glycogen studies have shown that a trained athlete can achieve at least 175 millimoles. | | | Glycogen resynthesis in skeletal muscle following resistive exercise. |
|
http://www.mesomorphosis.com/articles/jalali/glycogen.htm
(3245 words)
|
|
| |
| | eMedicine - Glycogen-Storage Disease Type I : Article by Karl S Roth, MD |
| | Lactate exits the hepatocyte, causing clinically significant lactic acidemia in proportion to the degree of stimulus for glycogen breakdown. | | | Hepatomegaly, the natural consequence of glycogen accumulation, is the clinical hallmark of the disease. | | | Medicine is a constantly changing science and not all therapies are clearly established. |
|
http://www.emedicine.com/PED/topic2416.htm
(3698 words)
|
|
| |
| | CYCLING PERFORMANCE TIPS - post ride recovery |
| | Occasionally overtraining may be the result of failing to adequately replace the muscle glycogen depleted as a result of daily training with the onset of what might be considered a chronic bonk type situation - or at least bonking much earlier in a ride than usual. | | | Regular physical exercise will help to protect your muscles (at the expense of fat) during periods of negative Caloric balance so you will not lose significant muscle mass even if you underestimate your Calorie needs. | | | you don't need to push beyond 1.5 grams CHO per kg body wt per hour which appers to be an upper limit to muscle glycogen replacement. |
|
http://www.cptips.com/recvry.htm
(2850 words)
|
|
| |
| | Glycogen storage diseases |
| | Disruption of glycogen metabolism also affects other biochemical pathways as the body seeks alternative fuel sources. | | | Triomphe, Teeny J. "Glycogen Storage Disease: A Basic Understanding and Guide to Nursing Care." Journal of Pediatric Nursing 12, no. 4 (Aug. 1997): 238. | | | The main differences are that the symptoms may not be as severe and may also include exercise-related problems in the muscles, such as pain and cramps. |
|
http://www.healthatoz.com/healthatoz/Atoz/ency/glycogen_storage_diseases.jsp
(2326 words)
|
|
| |
| | Glycogen |
| | Newer method suggests glycogen depletion can be obtained by repeated prolonged intense exercise with similar results | | | Super glycogen saturation technique can increase amount of work by 19% | | | Repeated muscle glycogen supercompensation is not possible, however performance enhancement is maintained (McInerney 2004) |
|
http://www.exrx.net/Nutrition/Glycogen.html
(328 words)
|
|
| |
| | Glycogen Metabolism |
| | Phosphorylation of phosphorylase-b greatly enhances its activity towards glycogen breakdown. | | | Therefore, any glucose released from glycogen stores of muscle will be oxidized in the glycolytic pathway. | | | However, muscle glycogen is not generally available to other tissues, because muscle lacks the enzyme glucose-6-phosphatase. |
|
http://web.indstate.edu/thcme/mwking/glycogen.html
(2825 words)
|
|
| |
| | The chemical logic behind... Glycogen synthesis and degradation |
| | Glycogen degradation beyond this point demands the action of the debranching enzyme and is therefore slower, which partly explains the fact that the muscle can only perform its maximum exertion during a few. | | | Glycogen phosphorylase is much faster than the debranching enzyme, and therefore the outer branches of glycogen are degraded bery rapidly in muscle when much energy is needed. | | | In these conditions, water will tend to flow into the cell, increasing its colume and (eventually) lysing it. |
|
http://www2.ufp.pt/~pedros/bq/glycogen.htm
(730 words)
|
|
| |
| | Lactic Acid |
| | The prefix “glyco” refers to the sugar glucose (which when strung together and stored in muscle makes glycogen); “lysis” means splitting or breakdown. | | | Lactic acid is the breakdown product of glucose and glycogen produced during a process called glycolysis. | | | So even your inactive muscles play a role in muscle recovery. |
|
http://tkdtutor.com/11Training/LacticAcid.htm
(1475 words)
|
|
| |
| | Home |
| | It does not do justice to the difficulty patients and their families’ experience, and their deep desire for improved forms of treatment or ultimately total correction. | | | Diagnosis of a rare genetic disease can be a very lonely experience for the patients and their families, and in some cases, for their doctors also. | | | Included in this site is a description of the general symptoms, associated problems, current treatment, and long-term outcome for the most commonly diagnosed glycogen storage diseases. |
|
http://www.agsdus.org
(180 words)
|
|
| |
| | Carbohydrates |
| | There is some evidence that intense exercise and a high-carbohydrate diet ("carbo-loading") can increase the reserves of glycogen in the muscles and thus may help marathoners work their muscles somewhat longer and harder than otherwise. | | | The liver and skeletal muscle are major depots of glycogen. | | | Glycogen is broken back down into glucose when energy is needed (a process called glycogenolysis). |
|
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Carbohydrates.html
(828 words)
|
|
| |
| | Acid maltase pathology |
| | Glycogen staining of vacuoles and individual muscle fibers | | | Some increased staining is present in all muscle fibers | | | Vacuoles are more common and larger in type I (pale) muscle fibers |
|
http://www.neuro.wustl.edu/neuromuscular/pathol/acidmalt.htm
(57 words)
|
|
| |
| | Glycogen Storage Disease / Family Village Library |
| | This Association was formed to assist in funding research and to promote public awareness of Acid Maltase Deficiency | | | The Association for Glycogen Storage Disease is a parent and patient oriented support group that is advised by a national, experienced group of medical professionals. | | | The AGSD presents a conference each year in the early fall. |
|
http://www.familyvillage.wisc.edu/lib_gsd.htm
(192 words)
|
|
| |
| | Ask the Pediatric Cardiologist - Glycogen Storage Disease |
| | As a muscle, the heart may or may not be affected, depending on the type of GSD and the enzyme involved. Some forms of GSD cause little illness, while others are life-threatening. | | | Glycogen is found mainly in liver and muscle cells.&; The kidneys and intestines are minor storage sites. Persons affected by GSD have a problem with one of the enzymes responsible for forming or releasing glycogen. There are about 11 known types of GSD. Glycogen storage diseases affect primarily the liver, the muscles or both. | | | Question: The doctors think that my child may have a glycogen storage disease and there is a chance that his heart may be affected. What are glycogen storage diseases (GSD) and how do they affect the heart? |
|
http://www.americanheart.org/presenter.jhtml?identifier=3011305
(394 words)
|
|
| |
| | What Is Glycogen Storage Disease (GSD)? |
| | The enzyme may be important in all cells of the body, or cells found specifically in liver or muscle tissue. | | | Persons affected by Glycogen Storage Disease (GSD) have an inherited absence or deficiency of any of the enzymes responsible for forming or releasing glycogen as it is needed by the body during exercise and/or between meals. | | | Glycogen is found mainly in liver and muscle cells, while the kidneys and intestines are minor storage sites. |
|
http://www.agsdus.org/html/whatisglycogenstoragedisease.html
(364 words)
|
|
| |
| | Glycogen storage disease - Wikipedia, the free encyclopedia |
| | Glycogen storage disease (synonyms: glycogenosis, dextrinosis) is any one of several inborn errors of metabolism that result from enzyme defects that affect the processing of glycogen synthesis or breakdown within muscles, liver, and other cell types. | | | GSD type V: muscle glycogen phosphorylase deficiency, McArdle disease | | | Although glycogen synthase deficiency does not result in storage of extra glycogen in the liver, it is often classified with the GSDs because it is another defect of glycogen storage and can cause similar problems. |
|
http://en.wikipedia.org/wiki/Glycogen_storage_disease
(197 words)
|
|
| |
| | Glycogen |
| | In muscle, glycogen phosphorylase is activated by AMP, which is present at high concentrations only under extreme conditions of anoxia and ATP depletion. | | | This comes in the form of hydrolysis of UTP (uridine triphosphate). | | | Glycogen synthase works efficiently only when it is bound to glycogenin. |
|
http://cmgm.stanford.edu/biochem200/glycogen
(1143 words)
|
|
| |
| | Carbohydrates - Glycogen |
| | The glucose that is not used immediately is converted in the liver and muscles into glycogen for storage by the process of glycogenesis. | | | Glycogen is synthesized and stored mainly in the liver and the muscles. | | | Glycogen is the storage form of glucose in animals and humans which is analogous to the starch in plants. |
|
http://www.elmhurst.edu/~chm/vchembook/547glycogen.html
(384 words)
|
|
| |
| | eMedicine - Glycogen-Storage Disease Type II : Article by Jennifer Ibrahim, MD |
| | However, the deficiency of this enzymatic activity results in the accumulation of structurally normal glycogen in lysosomes and cytoplasm in affected individuals. | | | Because the main pathway for glycogen degradation is not deficient in GSDII disease, energy production is not impaired, and hypoglycemia does not occur. | | | Excessive glycogen storage within lysosomes may interrupt normal functioning of other organelles and leads to cellular injury. |
|
http://www.emedicine.com/PED/topic1866.htm
(2080 words)
|
|
| |
| | How to reduce blood sugar levels by understanding glycogen storage and body fat |
| | But again, most people are not exercising, and their glycogen levels are already topped out, so when they consume sugars, they are directly promoting the creation of body fat. | | | The conversion of blood sugar to glycogen, of course, involves the liver, and it is a rather complicated physiological function that I'm not going to explain in detail. | | | So the body has to do something else, and this is where the answer to your question really comes into play. |
|
http://www.newstarget.com/002039.html
(1216 words)
|
|
| |
| | Structure of glycogen |
| | The essential features of this general structure are that each B-chain has two branch points, and all chains have the same length, as the experiments showed that the material is distributed at 50% between A- and B-chains. | | | Elongation stops when the synthase is no longer in contact with glycogenin, which forms the core of the particle. | | | Despite the fact that this structure was worked out by Whelan’s group nearly thirty years ago, and is accepted by all workers in the glycogen field, i.e. |
|
http://bip.cnrs-mrs.fr/bip10/glycogen.htm
(1008 words)
|
|
| |
| | children with DIABETES - Diabetes Dictionary: G |
| | The process by which glycogen is formed from glucose. | | | Glycogen is the chief source of stored fuel in the body. | | | It is stored in the liver and muscles and releases glucose (sugar) into the blood when needed by cells. |
|
http://www.childrenwithdiabetes.com/d_04_20g.htm
(831 words)
|
|
| |
| | Glycogen metabolism |
| | The normal glycogen content of liver varies between 2 and 8%. | | | The pentose phosphate pathway (or cycle) converts glucose-6-phosphate to reducing equivalents (NADPH) and biosynthetic precursors (ribose) for the reductive biosynthesis of lipids and nucleic acids. | | | The pathway can be modulated according to different metabolic requirements such as: |
|
http://www.whatislife.com/reader2/Metabolism/pathway/glycogen.html
(606 words)
|
|
| |
| | Glycogen metabolism |
| | - bound to glycogen by G subunit (in muscle) | | | - epinephrine directed phosphorylation inhibits (released from glycogen in muscle) | | | - released only when phosphorylase dephosphorylated, can then activate glycogen synthase |
|
http://plantpath.unl.edu/llane/839/glycogen.html
(477 words)
|
|
| |
| | glycogen - definition from Biology-Online.org |
| | One form in which body fuel is stored; stored primarily in the liver and broken down into glucose when needed by the body. | | | Derived from glucose, this carbohydrate is the stored form of energy in organisms, which can be converted back to glucose when required. | | | Glycogen can be broken down into glucose with glucagon while insulin converts glucose to glycogen. |
|
http://www.biology-online.org/dictionary/glycogen
(137 words)
|
|
| |
| | GLYCOGEN |
| | AA BOTH GLUCOSE and GLYCOGEN WERE DISCOVERED TO BE GLYCOGEN IN HUMANS and IN PLANTS | | | THAT IS WHY, BOTH GLUCOSE and GLYCOGEN, ARE ONLY SOLD IN 1% TO 3% SOLUTIONS, | | | 1 GLYCOGEN MOLECULE + 4 WATER MOLECULES = 2 GLUCOSE MOLECULES |
|
http://chemistry-school.info.hosting.domaindirect.com/glycogen.htm
(552 words)
|
|
| |
| | Glycogen |
| | Removes glucose from branch points (α-(1,6)-linkages) within glycogen | | | Removes glucose residues from α-(1,4)-linkages within glycogen molecules |
|
http://www.neuro.wustl.edu/neuromuscular/pathol/diagrams/glycogen.htm
(26 words)
|
|
|
