2 edition of Urinary excretion of organic acid and its variation on different diets found in the catalog.
Urinary excretion of organic acid and its variation on different diets
Laura Ida McLaughlin
|Statement||by Laura Ida McLaughlin.|
|LC Classifications||MLCM 82/1821|
|The Physical Object|
|Pagination||62 leaves ; 29 cm.|
|Number of Pages||62|
|LC Control Number||82198807|
Results Subjects with idiopathic uric acid nephrolithiasis had lower urine pH ( versus ; Pacid excretion (60 versus 43 mEq/24 h; Pacid excretion with higher body mass index in spite of strictly controlled equivalent dietary acid by: 3. In general, urinary excretion of amino acids by mice depends upon the types and amounts of amino acids ingested, although Steel et al.() noted that significant alterations in the quantity of amino acids excreted had little relationship with the amounts encountered in the blood. The reader is referred to their paper for the influence of age.
The excretion of amino acids in urine represents an important avenue for the loss of key nutrients. Some amino acids such as glycine and histidine are lost in higher abundance than others. These two amino acids perform important physiological functions and are required for the synthesis of key proteins such as haemoglobin and collagen. Stage 1 of this study involved healthy subjects (n = Cited by: 5. ORGANIC ACIDS IN URINE In this test, abnormalities in metabolism of organic acids are measured. The test provides information about metabolites of neurotransmitters, amino acids, fatty acids, energy production (citric acid cycle) and the functioning of certain vitamins and minerals. Besides metabolites of human origin, also certain toxic.
Urinary oxalate excretion increases with body size and decreases with increasing dietary calcium intake among healthy adults. Increasing dietary calcium intake decreases urinary oxalate excretion by increasing intestinal precipitation of dietary oxalate as calcium oxalate. This mech-anism was speculated to account for the decreased prospective. Diet affects urine pH and acid-base balance. Both excess acid/alkaline ash (EAA) and estimated net acid excretion (NAE) calculations have been used to estimate the effects of diet on urine pH. This study's goal was to determine if free-living vegans, lacto-ovo vegetarians, and omnivores have increasingly acidic urine, and to assess the ability of EAA and estimated NAE calculations to predict Cited by:
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URINARY EXCRETION OF ORGANIC ACID AND ITS VARIATION WITH DIET. BY LAURA MCLAUGHLIN AND KATHARINE BLUNT. (From the Nutrition Laboratory of the Department of Home Economics of the University of Chicago, Chicago.) (Received for publication, September 7, ).
urinary excretion of amino acids and of peptides compared to their excre- tion on the protein-free diet. The ratio of free amino acids to peptides in the urine remained essentially constant throughout each dietary regime, whether determined for in- dividual amino acids or for a-amino nitrogen.
Urine from normal subjects and from patients with a variety of metabolic disturbances was examined for organic acids by ion exchange purification foll Cited by: 8. GC–MS-based urinary organic acid profiling reveals multiple dysregulated metabolic pathways following experimental acute alcohol consumption Cindy Irwin 1 Lodewyk J.
Mienie 1Cited by: 4. About 10–15% of all urinary stones are composed of uric acid. A high urinary uric acid excretion, a low urine volume and an acidic urinary pH value are suggested to be the most important risk factors for uric acid stone formation.
The effect of a vegetarian diet and different omnivorous diets on the risk of uric acid crystallization was by: Organic acid analysis detects accumulation of organic acids in urine and other body fluids and is a crucial first-tier laboratory test for a broad spectrum of inborn errors of metabolism.
Urinary tartaric acid as a potential biomarker for the dietary assessment of moderate wine consumption: a randomised controlled trial Jorge Regueiro1, Anna Vallverdu´-Queralt2,3, Jesu´s Simal-Ga´ndara1, Ramo´n Estruch3,4 and Rosa Marı´a Lamuela-Ravento´s2,3* 1Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science andCited by: • Amino acid/organic acid balance as influenced by vitamin/mineral cofactors Despite the substantial information provided in the Urinary Organic Acids Profile, the interpretation is simplified by focussing on the fact that the data provides answers to four basic questions of clinical relevance: Size: KB.
Urinary Organic Acids Profiling for Assessment of Functional Nutrient Deficiencies, Gut Dysbiosis, and Toxicity January DOI: /B Urine organic acid profiling is an important second-line investigation in which up to different IMDs can be identified from a single analysis. Organic acid analysis can identify intermediary metabolites from most amino acid, carbohydrate, purine and pyrimidine, neurotransmitter, cholesterol and fatty acid pathways, making it a powerful investigative tool.
Hyperuricosuria is a well-recognized risk factor for calcium oxalate urolithiasis. Some studies have demonstrated elevated urinary uric acid excretion in stone formers compared with non-stone-forming controls; nevertheless, these studies were limited by patient consumption of self-selected by: 6.
The finding reported in a previous paper - alkalization of urine facilitates uric acid excretion - is contradictory to what one might expect to occur: because food materials for the alkalization of urine contain fewer purine bodies than those for acidification, less uric acid in alkaline urine should have been excreted than in acid urine.
To make clear what component of uric acid excretion. Based on urinary Na and Cl excretion data, we found that the (Cl-Na) difference was very low for baseline diet, on average 6 mmol/d, but was 25 mmol/d for both the ADA and Paleo diets. Thus, an additional factor in the underestimation of NAE_ urine M by about 20 mEq/d after the ADA or Paleo intervention may be related to the omission of Na and Cited by: 9.
In humans with uric acid nephrolithiasis, excessively acidic urine causes titration of urate to the highly insoluble uric acid despite normal or even low total uric acid content in urine.
The pathogenesis of low urine pH has been ascribed to both increased acid load to the kidney and defective utilization of ammonia in urinary buffering 25 - Cited by: Net acid excretion. In renal physiology, net acid excretion (NAE) is the net amount of acid excreted in the urine per unit time.
Its value depends on urine flow rate, urine acid concentration, and the concentration of bicarbonate in the urine (the loss of bicarbonate, a buffering agent, is physiologically equivalent to a gain in acid).
Uric acid stone formers excreted more acid (normalized to acid ingestion), with the excess excreted primarily as titratable acid rather than ammonium. Urine base excretion was also lower in uric acid stone formers (normalized to base ingestion), along with lower plasma bicarbonate concentrations during part Cited by: The ingestion of both grape and orange juices produces an increased excretion of organic acids.
The ingestion of apple juice, however, is often accompanied by a decreased organic acid output. The increase in organic acid output observed on both the orange and grape juice diets is in part due to an increased excretion of uric plus citric by: 4.
Organic acidemia, is a term used to classify a group of metabolic disorders which disrupt normal amino acid metabolism, particularly branched-chain amino acids, causing a buildup of acids which are usually not present.
The branched-chain amino acids include isoleucine, leucine and valine. Organic acids refer to the amino acids and certain odd-chained fatty acids which are affected by these Other names: Arganic aciduria.
The term "organic acidemia" or "organic aciduria" (OA) applies to a group of disorders characterized by the excretion of non-amino organic acids in urine.
Most organic acidemias result from dysfunction of a specific step in amino acid catabolism, usually the result of deficient enzyme activity.
The majority of the classic organic acid disorders. The effect of the oral acid load on calcium metabolism is well known from the studies of Lemann et al. 9 and others, 9, 10 and the urinary excretion of citrates is inversely correlated with the Cited by:. Alkaline diet (also known as the alkaline ash diet, alkaline acid diet, acid ash diet, and acid alkaline diet) describes a group of loosely related diets based on the misconception that different types of food can have an effect on the pH balance of the originated from the acid ash hypothesis, which primarily related to osteoporosis research.e and included as acid excretion those organic acids titrated between urine pH and pH Organic acids produced in the bodyfromneutral foods and excreted as the acid in urine have no net effect on acid balance.
In the present studies the calculation of titratable acid (see below) e does not include the organic acids; therefore, only the.Objective: Diet affects urine pH and acid-base balance.
Both excess acid/alkaline ash (EAA) and estimated net acid excretion (NAE) calculations have been used to estimate the effects of diet on urine pH.
This study’s goal was to determine if free-living vegans, lacto-ovo vegetarians, and omnivores have increasingly acidic urine, and.