The Role of Elements in Life Processes. The Journal of Nutritional Biochemistry - Dietary supplements of mixtures of indispensable amino acids lacking threonine, phenylalanine or histidine increase the activity of hepatic threonine dehydrogenase, phenylalanine hydroxylase or histidase, respecti. Received 18 July 2000; received in revised form 4 January 2001; accepted 9 January 2001.
Experiments were carried out to determine whether the addition of a mixture of indispensable amino acids (IAA) lacking in threonine, phenylalanine or histidine, respectively, to a nutritionally complete diet would increase the hepatic activities of the rate-limiting enzymes for catabolism of threonine, phenylalanine or histidine and prevent the adverse effects of the amino acid on growth when the dietary level of the amino acid is excessive. Week old Leghorn chicks were fed semi-purified diets containing 19% crude protein to which were added no IAA supplement or 10% crude protein from an IAA mix and 5 graded levels of either L-threonine, L-phenylalanine or L-histidine in a 2 × 5 factorial arrangement of treatments. Each amino acid was investigated in a separate experiment involving four replicate pens (seven chicks each) per diet. B vitamins. List of B vitamins[edit] Vitamin B1 (thiamine)Vitamin B2 (riboflavin)Vitamin B3 (niacin or niacinamide)Vitamin B5 (pantothenic acid)Vitamin B6 (pyridoxine, pyridoxal, or pyridoxamine, or pyridoxine hydrochloride)Vitamin B7 (biotin)Vitamin B9 (folic acid)Vitamin B12 (various cobalamins; commonly cyanocobalamin in vitamin supplements) B vitamin molecular functions[edit] B vitamin deficiency[edit] Several named vitamin deficiency diseases may result from the lack of sufficient B-vitamins.
Deficiencies of other B vitamins result in symptoms that are not part of a named deficiency disease. B vitamin side effects[edit] Because water-soluble B vitamins are eliminated in the urine, taking large doses of certain B vitamins may produce transient effects. B vitamin sources[edit] B vitamins are found in whole unprocessed foods. The B12 vitamin is of note because it is not available from plant products, making B12 deficiency a legitimate concern for vegans. Related nutrients[edit] References[edit] Guided Tour: Visible Human. Master Muscle List Home Page.
THE MERCK MANUAL: The Merck Manual of Diagnosis and Therapy.
The Nutrition Source. The Top 10 Psychology Studies of 2010. The end of 2010 fast approaches, and I'm thrilled to have been asked by the editors of Psychology Today to write about the Top 10 psychology studies of the year. I've focused on studies that I personally feel stand out, not only as examples of great science, but even more importantly, as examples of how the science of psychology can improve our lives.
Each study has a clear "take home" message, offering the reader an insight or a simple strategy they can use to reach their goals , strengthen their relationships, make better decisions, or become happier. If you extract the wisdom from these ten studies and apply them in your own life, 2011 just might be a very good year. 1) How to Break Bad Habits If you are trying to stop smoking , swearing, or chewing your nails, you have probably tried the strategy of distracting yourself - taking your mind off whatever it is you are trying not to do - to break the habit. J. 2) How to Make Everything Seem Easier J. 3) How To Manage Your Time Better M.
J. 3D Human Anatomy. Nutrition. 5 Ways to Use Anti-Microbial, Anti-Fungal Grapefruit Seed Extract Grapefruit seed extract offers anti-bacterial and anti-viral properties.
Here are 5 ways you can use grapefruit seed extract to boost your health. Continue Reading 6 Herbs for Healthy Lungs and Easy Breathing Have trouble breathing? Continue Reading The Tropical Fruit that can Detox Toxic Fluoride From detoxing fluoride to boosting heart health the tropical fruit tamarind has much to offer. 3D Models of the Human Anatomy. THE MERCK MANUAL: The Merck Manual of Diagnosis and Therapy. THE MERCK MANUAL: The Merck Manual of Diagnosis and Therapy.