| 单词 | ketone |
| 例句 | Its bitter odor released the ketones of stress. Middlesex: A Novel 2002-06-05T00:00:00Z The most likely explanation is that this reduction in exercise performance occurs because ketone supplements make the blood more acidic, something that has long been known to impair performance. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z Proponents combine fasting with obsessive tracking of vitals including body composition, blood glucose and and ketones – compounds produced when the body raids its own fat stores, rather than relying on ingested carbohydrates, for energy. The Silicon Valley execs who don't eat for days: 'It's not dieting, it's biohacking' 2017-09-04T04:00:00Z They also measured blood elevated ketones, to check that their body was indeed using fat as fuel, a metabolic state known as “ketosis”. The Silicon Valley execs who don't eat for days: 'It's not dieting, it's biohacking' 2017-09-04T04:00:00Z As ketone bodies can be a source of energy, just like carbohydrates and fats, scientists became interested in supplements that would increase ketone body concentrations in the blood without reducing carbohydrate availability. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z Oxidation leads to the formation of smaller molecules such as ketones, aldehydes and fatty acids that give rancid foods a characteristic rank, strong and metallic scent. Rancid food smells and tastes gross — AI tools may help scientists prevent that spoilage 2023-10-19T04:00:00Z It turns fat into molecules called ketones and the ketones serve as the body’s fuel. Have you ever tried a fad diet to lose weight? Here’s why it didn’t work 2017-07-09T04:00:00Z It appears that consuming ketones before or during exercise does not provide any benefits to exercise performance. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z When they are not available – either because of fasting or because of a ketogenic diet – cells obtain fuel by breaking down fats into compounds called ketones. Diet can influence mood, behavior and more — a neuroscientist explains 2022-09-09T04:00:00Z When carbohydrate availability gets low, the liver starts converting fat into ketone bodies – as ketones are properly called – which provide an alternate source of fuel for the brain. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z This is why the researchers are measuring hundreds of metabolites in participants’ blood after eating – such as ketones – as well as our gut microbe diversity. Eat more avocado! What I learned from the study that will change how we eat 2019-06-23T04:00:00Z But there is no evidence suggesting that ketone supplementation would provide benefits to athletes during normal training. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z Many attempts have been made to develop a ketone supplement. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z “So a lot of the subjective benefits to fasting, including mental clarity, are down to the rise in ketones in the system.” The Silicon Valley execs who don't eat for days: 'It's not dieting, it's biohacking' 2017-09-04T04:00:00Z There is some limited evidence that combining ketones and sodium bicarbonate supplements could counteract this. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z The latest supplement receiving lots of attention is ketones. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z In super low-carb diets, the lowest-carb are ketogenic, meaning the low level of carbohydrates reduces blood sugar so much that your body converts stored fat into ketone bodies, which are then used as fuel. Perspective | Did the government’s dietary guidelines help make us fat? 2019-02-22T05:00:00Z It seems ketones are nowhere near as efficient as the magic potion that Asterix used and we will continue to be searching for the lost recipe of the series' village druid Getafix. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z Initially, most ketone supplements caused gastrointestinal issues and did not sufficiently increase ketone body availability. Ketone drinks: Do they really improve sports performance? 2023-10-03T04:00:00Z Cats' scent comes from a mix of volatile organic compounds, including aldehydes, alcohols, esters and ketones. More than meows: How bacteria help cats communicate 2023-11-16T05:00:00Z In addition, ketones, which are a natural compound in the body, can throw off BAC readings. How Long Do Breathalyzers Detect Alcohol? 2018-06-12T04:00:00Z That’s when the body doesn’t have enough insulin to allow blood sugar into the cells for energy, so it breaks down fat for fuel, resulting in a dangerous buildup of ketones in the blood. What’s new in intermittent fasting research? More not-so-good news 2023-01-23T05:00:00Z “You want to lose weight? Take raspberry ketones,’’ Mr. Obama said. At Fetterman Rally, Obama Mocks Oz and Tells Crowd to Vote for Democracy 2022-11-05T04:00:00Z That was probably because they burned a little more fat during the night, and the fat was broken down into ketone bodies, which suppress hunger. Why eating dinner late may be worse for your health 2022-10-09T04:00:00Z Explain why it is not possible to prepare a ketone that contains only two carbon atoms. Chemistry 2019-02-14T00:00:00Z Chemically, these hormones are usually ketones or alcohols; their chemical names will end in “-ol” for alcohols or “-one” for ketones. Biology for AP Courses 2022-06-09T00:00:00Z These ketone bodies can serve as a fuel source if glucose levels are too low in the body. Anatomy and Physiology 2013-06-19T00:00:00Z After condensing into a sweet smelling, clear liquid, the ketones are piped to another reactor where gray platinum pellets link them together and strip off oxygen atoms to make kerosene, aka jet fuel. Can farm and food waste power tomorrow’s airplanes? 2022-06-22T04:00:00Z This time, a urine dip tested positive for ketones. New Cases of Childhood Diabetes Rose during the Pandemic 2022-04-15T04:00:00Z The importance of molecular structure in the reactivity of organic compounds is illustrated by the reactions that produce aldehydes and ketones. Chemistry 2019-02-14T00:00:00Z Mikey’s immune system was destroying the insulin-making cells in his pancreas, and when his body couldn’t get enough glucose for fuel, it began breaking down fat cells instead, creating chemicals called ketones. Perspective | Many deaths haunt this D.C. child advocate. But one hurts the most. 2022-04-14T04:00:00Z In both cases, fat stores are liberated to generate energy through the Krebs cycle and will generate ketone bodies when too much acetyl CoA accumulates. Anatomy and Physiology 2013-06-19T00:00:00Z In a process he and colleagues developed, the VFAs are vaporized, then percolate over a bed of white, marble-size pellets of zirconium oxide, which knit the VFAs into longer chains called ketones. Can farm and food waste power tomorrow’s airplanes? 2022-06-22T04:00:00Z "These feelings have often been attributed to ketosis," he wrote, "the production of ketone bodies which can replace glucose as an energy source for the brain." Why fasting can make you feel "high" 2022-03-13T05:00:00Z An alcohol with its –OH group attached to two other carbon atoms will form a ketone. Chemistry 2019-02-14T00:00:00Z This mix of ketones, extra glucose and dehydration created the condition of diabetic ketoacidosis, which is dangerous for many and was fatal for Mikey. Perspective | Many deaths haunt this D.C. child advocate. But one hurts the most. 2022-04-14T04:00:00Z The result is the production of β-hydroxybutyrate, the primary ketone body found in the blood. Anatomy and Physiology 2013-06-19T00:00:00Z Puthucheary and his colleagues are conducting a small study to test whether ketones — an alternative fuel source derived from the body's breakdown of fat — or an amino acid metabolite called hydroxy methylbutyrate might work better. Recovery from an ICU stay is tough. Could more protein help? 2021-08-29T04:00:00Z The odor is caused by ketones, chemicals produced when the body begins to burn fat instead of glucose for energy, a metabolic state known as ketosis. A Covid Test as Easy as Breathing 2021-07-11T04:00:00Z The names for aldehyde and ketone compounds are derived using similar nomenclature rules as for alkanes and alcohols, and include the class-identifying suffixes -al and -one, respectively: Chemistry 2019-02-14T00:00:00Z Now, she sends data daily on her weight, blood sugar and ketones and receives immediate feedback from her health coach. Perspective | A surprising pandemic side effect: It has improved health care 2021-05-12T04:00:00Z When ketones are produced faster than they can be used, they can be broken down into CO2 and acetone. Anatomy and Physiology 2013-06-19T00:00:00Z A ketogenic diet also forces the liver to turn excess fat into molecules called ketone bodies that glucose-craving cancer cells struggle to burn for energy, some scientists suggest. Special diets might boost the power of drugs to vanquish cancers 2021-04-01T04:00:00Z If you don’t eat many carbs, your body starts running on ketones, which your liver manufactures from fat — less hunger, less fat accumulation. Perspective | Is keto really better for weight loss? A new study takes a closer look at the diet. 2021-01-21T05:00:00Z In a ketone, the carbonyl group is bonded to two carbon atoms: Chemistry 2019-02-14T00:00:00Z Ms Johns checked Chloe's ketone levels, which were so high that the machine displayed 'maximum', meaning she was in danger of entering a diabetic coma. Chelmsford diabetic alert dog is a 'miracle lifesaver' 2021-01-23T05:00:00Z Figure 24.15 Ketone Oxidation When glucose is limited, ketone bodies can be oxidized to produce acetyl CoA to be used in the Krebs cycle to generate energy. Anatomy and Physiology 2013-06-19T00:00:00Z In animals on a ketogenic diet, the ketone bodies they produced boosted the T cells’ power, her team reported in January. Special diets might boost the power of drugs to vanquish cancers 2021-04-01T04:00:00Z DKA is a condition that occurs when the lack of insulin causes the body to start burning fat for fuel, releasing ketones that build up in the blood. Perspective | Type 1 diabetes is less common, and misconceptions abound. Here are five. 2020-12-31T05:00:00Z In both aldehydes and ketones, the geometry around the carbon atom in the carbonyl group is trigonal planar; the carbon atom exhibits sp2 hybridization. Chemistry 2019-02-14T00:00:00Z The denaturants can include methanol, acetone, methyl ethyl ketone and denatonium, which intestinally make it less appealing to ingest, the U.S. The scientific reason your hand sanitizer smells so bad 2020-07-15T04:00:00Z When in excess, the amino acids are processed and stored as glucose or ketones. Anatomy and Physiology 2013-06-19T00:00:00Z In Zitvogel’s mouse study, adding ketone bodies to the animals’ chow worked as well as a ketogenic diet at boosting immunotherapies; she now plans to compare the two in a clinical trial. Special diets might boost the power of drugs to vanquish cancers 2021-04-01T04:00:00Z Methyl ethyl ketone is clear and carries a sweet acetone scent, almost butterscotch. Toxic Ghosts 2020-06-19T04:00:00Z Alcohols that have their –OH groups in the middle of the chain are necessary to synthesize a ketone, which requires the carbonyl group to be bonded to two other carbon atoms: Chemistry 2019-02-14T00:00:00Z Line-drying uniquely produced a number of aldehydes and ketones: organic molecules our noses might recognize from plants and perfumes. How Line-Dried Laundry Gets That Fresh Smell 2020-05-29T04:00:00Z The most common cause of metabolic acidosis is the presence of organic acids or excessive ketones in the blood. Anatomy and Physiology 2013-06-19T00:00:00Z DKA occurs when lack of insulin prompts the body to break down fat for fuel, resulting in high blood levels of compounds called ketones. Could mass screening benefit kids at high risk of diabetes? 2020-04-23T04:00:00Z The firm won an Accelerator grant to develop a subcutaneous sensor to simultaneously monitor glucose, ketones, and lactase in diabetic patients. Watch out Silicon Valley: European Union gets into the venture capital game 2020-04-08T04:00:00Z A ketone contains a group bonded to two additional carbon atoms; thus, a minimum of three carbon atoms are needed. Chemistry 2019-02-14T00:00:00Z Those radicals then recombine with other nearby molecules, processes that often lead to the creation of aldehydes as well as ketones. How Line-Dried Laundry Gets That Fresh Smell 2020-05-29T04:00:00Z Metabolic acidosis can also arise from diabetic ketoacidosis, wherein an excess of ketones is present in the blood. Anatomy and Physiology 2013-06-19T00:00:00Z When fats are used for energy, they produce substances called ketone bodies that “regulate the expression and activity of many proteins and molecules that are known to influence health and aging,” the researchers reported. The Benefits of Intermittent Fasting 2020-02-17T05:00:00Z On the diet, some people experience “keto breath,” a halitosis likely caused by the production of acetone, which is one of the ketone bodies. Dropping the carbs: What is the Keto diet and does it work? | Produced by Advertising Publications 2020-01-08T05:00:00Z She was suffering from the early stages of diabetic ketoacidosis, a life-threatening complication that involves a dangerously high buildup of ketones, a chemical that causes the blood to become acidic. DIY diabetes tech gains popularity with patients and parents fed up with clunky mainstream medical devices 2019-12-13T05:00:00Z Doctors linked an acidic odor to something called ketoacidosis, where the body excretes offensive smelling ketones. Reasons behind bad breath and how to get rid of it 2019-12-15T05:00:00Z These raw materials can then be used to synthesize additional glucose and ketones for use as body fuels. Anatomy and Physiology 2013-06-19T00:00:00Z This way of eating depletes the body of glucose, forcing it to primarily burn fat and produce an alternate source of fuel called ketones. The Keto Diet Is Popular, but Is It Good for You? 2019-08-20T04:00:00Z Her hair bore their ketone reek even after she showered; her dreams were tinged with their gurgling, never resolving into a recognizable opinion. How we know they have faces 2019-07-23T04:00:00Z Those ketones are then released into the blood and eventually eliminated. Starvation clinics: The dangerous new trend in Russia 2019-02-12T05:00:00Z Excess ketones cause the blood itself to become acidic. It’s a dangerous eating disorder that affects people with diabetes. So why haven’t you heard of it? 2018-08-20T04:00:00Z After several days of starvation, ketone bodies become the major source of fuel for the heart and other organs. Anatomy and Physiology 2013-06-19T00:00:00Z As a parent of a type 1 diabetic daughter, we live in fear of ketones. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z When deprived of carbohydrate, the body shifts from using glucose as its main energy source to burning fat and producing chemicals in the liver known as ketone bodies. Could a drug that mimics a zero-carb diet help us live longer, healthier lives? 2017-09-05T04:00:00Z In a separate project, Dewhurst is analysing levels of exhaled ketones and sulfides in cow breath to reveal underfeeding and tissue breakdown or excess protein in their diet. Technology: The Future of Agriculture : Nature : Nature Research 2017-04-25T04:00:00Z We also create ketones when we exercise, and those ketones are known to migrate to our brains.. How Exercise May Help the Brain Grow Stronger 2016-06-15T04:00:00Z As starvation continues, fatty acids and triglyceride stores are used to create ketones for the body. Anatomy and Physiology 2013-06-19T00:00:00Z A more accurate test would be to take the same set of riders and allow their bodies to adjust to the same ketone used in the oxford study. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z “We think these channels work better when the brain is using ketones instead of glucose for energy.” You Asked: Should I Try a Ketogenic Diet? 2016-12-28T05:00:00Z Ketosis occurs when your body breaks down stored fat, causing ketones to build up in your body. Is Medically Supervised Weight Loss Right for You? 2016-03-11T05:00:00Z The runners’ brains contained high levels of ketones, which are a byproduct of the breakdown of fat. How Exercise May Help the Brain Grow Stronger 2016-06-15T04:00:00Z If excess acetyl CoA is created and overloads the capacity of the Krebs cycle, the acetyl CoA can be used to synthesize ketone bodies. Anatomy and Physiology 2013-06-19T00:00:00Z Such diets also result in an abundance of ketones, substances produced by the liver that the muscles and brain can use as fuel. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z One dubious practice of some keto diet adherents is using urine, blood or breath test kits to check their circulating ketone levels. You Asked: Should I Try a Ketogenic Diet? 2016-12-28T05:00:00Z Insulin restriction can lead to diabetic ketoacidosis, a potentially fatal condition that develops when the body lacks insulin and starts to break down fat, producing ketones that can poison the body. An Eating Disorder in People With Diabetes 1458-07-05T05:00:00Z The brain uses these ketones for fuel when blood sugar levels grow low. How Exercise May Help the Brain Grow Stronger 2016-06-15T04:00:00Z When glucose is limited, ketone bodies can be oxidized and used for fuel. Anatomy and Physiology 2013-06-19T00:00:00Z In the interim, athletic performance suffers and most people feel sluggish and unwell, sometimes developing a condition known as “ketone flu” that resembles food poisoning. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z “In the same way, measuring the level of ketones in the blood doesn’t tell you the whole story.” You Asked: Should I Try a Ketogenic Diet? 2016-12-28T05:00:00Z Instead, you mobilize fat from your fat cells, which are converted to compounds called ketones. Eating for Your Brain as a Senior 2016-01-05T05:00:00Z But it appears that ketones also cause the molecules that hinder the B.D.N.F. gene to loosen their grip, as the scientists realized when they experimentally added ketones to brain tissue from some of the mice. How Exercise May Help the Brain Grow Stronger 2016-06-15T04:00:00Z After a few days, however, ketone bodies are created from fats and serve as the preferential fuel source for the heart and other organs, so that the brain can still use glucose. Anatomy and Physiology 2013-06-19T00:00:00Z So some athletes and their advisers have begun to wonder whether taking ketone supplements might allow athletes to gain the benefits of a high-fat diet without the long, difficult transition time. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z The name refers to a specific type of energy-carrying molecule, called a ketone. You Asked: Should I Try a Ketogenic Diet? 2016-12-28T05:00:00Z Likewise, if your brain is running on ketones, it’s running below capacity. What Happens to Your Body When You Go on an Extreme Diet 2015-06-19T04:00:00Z The body and brain will burn ketones as fuel when the blood does not contain much sugar. Should Athletes Eat Fat or Carbs? 2015-02-25T05:00:00Z The build-up of ketones in the blood causes ketoacidosis, which—if left untreated—may lead to a life-threatening “diabetic coma.” Anatomy and Physiology 2013-06-19T00:00:00Z Each rider rode after drinking the placebo and, on another day, after swallowing the ketones. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z These ketones are created when the body burns fat for energy, because low insulin levels are preventing the conversion of blood sugar into fuel. Type 1 Diabetes Linked to Lower Life Expectancy in Study 2015-01-06T05:00:00Z They found a link between higher levels of acetone in the breath and ketones in the blood. 6 Breath Tests that Can Diagnose Disease 2014-11-26T05:00:00Z That fat-burning activity causes the body to release breakdown products called ketones, which suppresses hunger, the researchers said. Is 'Slow and Steady' Weight Loss Really the Best Approach? 2014-10-15T04:00:00Z Finding ketones in the urine suggests that the body is using fat as an energy source in preference to glucose. Anatomy and Physiology 2013-06-19T00:00:00Z Told that their performance in fact had declined, almost all announced that they were no longer interested in using ketones for performance enhancement. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Without glucose as a source of fuel, the brain shifts to a backup energy system that burns ketone bodies, which are compounds produced from carbohydrates and fat in the liver. Why do more women get Alzheimer’s? Research points to genetics, other factors. The drug should not be used to treat type 1 diabetes, in people with severe kidney impairment, among people with increased ketones in the blood or urine, or in people on dialysis, the FDA said. Jardiance Approved for Type 2 Diabetes 2014-08-01T04:00:00Z They include green coffee bean extract, raspberry ketones, Garcinia cambogia and yacon syrup, among others. Is Weight-Loss Advice from Dr. Oz Trustworthy? 2014-08-01T04:00:00Z Instead, the cells are forced to use fat as their energy source, and fat consumed at such a level produces excessive ketones as byproducts. Anatomy and Physiology 2013-06-19T00:00:00Z The upshot is that far more research needs to be conducted before experts can make recommendations about ketone supplementation for athletes, Dr. Burke says. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z No one knows exactly why, but some evidence suggests that ketone bodies might protect against seizures1. Food science: Fat chance : Nature : Nature Publishing Group 2014-07-08T04:00:00Z An official Oz-branded line of green coffee extract, acai berry juice, raspberry ketone, and other “alternative therapies” might not impede the swarm of imitators appropriating Oz’s claims, but it would surely be lucrative. Stay tuned. Senators to Dr. Oz: You Help People Peddle Phony Cures 2014-06-17T04:00:00Z A powerful industrial solvent, methyl ethyl ketone, was reported in more than 400 products, including the plastics and textiles of infant toys and children's clothing. Chemicals of High Concern Found in Thousands of Children's Products 2013-05-06T15:15:21.833Z These excess ketones will appear in the urine. Anatomy and Physiology 2013-06-19T00:00:00Z That said, I doubt the ability of supplemental ketones to achieve normal ketosis. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z During fasting, and in people with diabetes, the liver metabolizes fatty acids into ketone bodies called β-hydroxybutyrate, acetoacetic acid and acetone that are used as an energy source when glucose levels are low. Food science: Fat chance : Nature : Nature Publishing Group 2014-07-08T04:00:00Z Cons: There's lots of marketing hype around this diet, which revolves around raspberry ketone supplements sold at health stores. Google's Most Popular Diets of 2012 2012-12-27T17:02:00Z This causes a by-product called ketones to build up. Parents 'overlook diabetes signs' 2012-11-14T01:04:50Z This is useful because most of the body’s metabolic wastes, such as lactic acid and ketones, are acids. Anatomy and Physiology 2013-06-19T00:00:00Z I have used ketone supplements from time to time; he has not. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z A low-carbohydrate, high-fat diet creates the state of ketosis — the raised level of ketone bodies, from which the diet gets its name. Food science: Fat chance : Nature : Nature Publishing Group 2014-07-08T04:00:00Z But with a diet of hunted meat, where the carbohydrate level is low but fat content is high, the brain switches to its secondary fuel source of ketone bodies instead of the preferential glucose. Dogs' breakfast boosts memory 2012-10-10T06:50:17Z Examples include diethyl phthalate, a chemical found in 97 percent of Americans and linked to sperm damage in human epidemiological studies, and musk ketone, which concentrates in human fat tissue and breast milk. Scent of Danger: Are There Toxic Ingredients in Perfumes and Colognes? 2012-09-29T12:15:00.167Z After about a week, the body makes another shift, and instead of cannibalizing its own proteins it starts breaking down fat into substances called ketones, which can feed the brain in place of glucose. George F. Cahill Jr., Diabetes Expert, Dies at 85 2012-08-17T04:26:01Z How could ingesting the byproduct of fat metabolism help your body get through the ketone fog? Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z There is little correlation between seizure control and blood ketone body levels. Food science: Fat chance : Nature : Nature Publishing Group 2014-07-08T04:00:00Z Gouma's group is also developing e-noses to detect the organic compound isoprene to measure cholesterol levels, ammonia to detect kidney disease, and a mix of ammonia and ketones to get a whiff of liver disease. Vapor Trail: Electronic Noses Sniff Bad Breath for Signs of Disease 2012-07-30T10:45:00.210Z First, they saw ketones, a sign that the body was metabolizing fat. Orangutans shed light on obesity in people 2011-12-14T00:54:53Z A natural drop in insulin is what drives the shift to ketones, Dr. Cahill determined. George F. Cahill Jr., Diabetes Expert, Dies at 85 2012-08-17T04:26:01Z I am glad the athletes who took the ketones performed worse than those who didn't. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Yellen and Danial's work has identified a protein that switches a cell's fuel glucose to ketone bodies and in so doing opens a type of potassium ion channel in neurons that can dampen electrical activity7. Food science: Fat chance : Nature : Nature Publishing Group 2014-07-08T04:00:00Z By the action of dehydrating agents they are converted into aldehydes or ketones. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z In organic chemistry, his study of the ketones and aldehydes, begun in 1857, provided him with the subject of his other doctoral thesis. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 2 "French Literature" to "Frost, William" 2011-10-14T02:00:26.280Z Guncotton is converted into a gelatinous form by several substances, such as esters, e.g. ethyl acetate or benzoate, acetone and other ketones, and many benzene compounds, most of which are volatile liquids. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z This is why many serious endurance athletes who rely on ketones to give them an edge, keep themselves in a state of nearly continuous ketosis - accessing this superior form of fuel. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Of such condensation products undoubtedly the most important are the hydrazones, which result from the interaction with aldehydes and ketones. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4 "Finland" to "Fleury, Andre" 2011-03-20T02:00:30.697Z The tertiary glycols are known as pinacones and are formed on the reduction of ketones with sodium amalgam. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z They don’t even know how much ketone bodies themselves matter. Epilepsy?s Big, Fat Miracle 2010-11-19T10:39:00Z When an osazone is decomposed by boiling with strong acids, the phenyl hydrazine groups break off, leaving a compound containing both an aldehyde and a ketone group. The Chemistry of Plant Life Dr. Burke's article adds to our understanding of exogenous ketone esters. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z The aldehydes and ketones provided material for his earlier work. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4 "Finland" to "Fleury, Andre" 2011-03-20T02:00:30.697Z CAMPHORS, organic chemical compounds, the alcohols and ketones of the hydrocarbons known as terpenes, occurring associated with volatile oils in many plants. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 2 "Camorra" to "Cape Colony" This is true of the fatty acid series, and the corresponding ketones and alcohols, and also of the succinic acid series. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The oxygenated essential oils may be either alcohols, aldehydes, ketones, acids, esters, or phenols, derived from either five-membered or six-membered closed-ring hydrocarbons. The Chemistry of Plant Life At that time, the body switches over to ketones for fuel and, the more fat-adapted the easier it is to make this transition. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Besides methyl salicylate, the oil contains triaconitane, an aldehyde or ketone, and an alcohol. The Handbook of Soap Manufacture The most important of these classes are the hydrocarbons, the alcohols, the aldehydes, the acids, the ethereal salts, the ethers, the ketones, the organic bases, and the carbohydrates. An Elementary Study of Chemistry The ketone group corresponds to a thermal effect of 53.52 calories. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Camphor, C10H16O, is a ketone, having the following structural formula: There are a considerable number of essential oils which are phenols. The Chemistry of Plant Life However, the conclusion one should draw from her article is not that all ketone formulations function like this. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Mixed ketones are obtained by distilling together salts of two different fatty acids. Nitro-Explosives: A Practical Treatise Hydrocarbons as a class possess considerable similarity in odor, so also do the organic sulphides and, to a much smaller extent, the ketones. Studies in the Psychology of Sex, Volume 4 Sexual Selection In Man By the action of hydroxylamine or phenylhydrazine on aldehydes or ketones, condensation occurs between the carbonyl oxygen of the aldehyde or ketone and the amino group of the hydroxylamine or hydrazine. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Secondary alcohols result from the reduction of ketones; and from the reaction of zinc alkyls on aldehydes or formic acid esters. The Project Gutenberg Encyclopedia Volume 1 of 28 If there was a way to mimic fasting by sprinkling ketones on a pizza with cheese-stuffed crust, it would present an insatiable market. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Field groups the solvents of pyroxyline into classes thus: Two of the monohydric alcohols; compound ethers of the fatty acids with monohydric alcohols, aldehydes; simple and mixed ketones of the fatty acid series. Nitro-Explosives: A Practical Treatise Lachrymators at Loos, 1915.—Germany commenced the manufacture of lachrymators, crude brominated xylene or brominated ketones, early in, or perhaps before 1915. The Riddle of the Rhine; chemical strategy in peace and war Taking ketone supplements is an attempt to short cut the process of becoming fat-adapted that does not work very well as the article points out. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z However, downing a bunch of ketone salts is no substitute for entering the race already full fat-adapted and burning primarily ketones from mile one. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z So for the new study, which was published last month in Frontiers in Physiology, scientists at the Australian Institute of Sport and other institutions decided to create a more real-world test of ketone supplementation. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Focus on "hacking" ketone and body fat use for exercise seems so odd. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z So giving those athletes ketones in a bottle helps to give them energy but without needing to restrict carbohydrate. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Various types of these supplements, in the form of powders or drinks, are chemically identical to the ketones made by the body. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Last year, a much-discussed study conducted by researchers at Oxford University found that a proprietary type of ketone supplement improved cycling performance in a group of trained riders. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Every rider performed worse after drinking the ketone supplement. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z About an hour before a training session, they gave each rider a drink that contained either ketones or a placebo. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Not surprisingly, the riders all guessed during which trial they had the ketones, based on their stomachs’ reactions. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z It’s a pretty weak leap of logic to suggest that ingesting ketones will help your body better metabolize fat. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Ketosis is wonderful, but you can't just start taking ketones and expect to boost performance immediately. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z The riders’ brains could have interpreted the sudden presence of ketones as indicating a metabolic problem, Dr. Burke says, and responded by sending messages to the muscles urging them to slow down. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Ketosis just means having ketones in your blood. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z But the symptoms you described while you were adapting were caused by low blood sugar but also not enough ketones to fuel your brain and body, it takes a while for them to build up. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z While you were adapting, the symptoms could have been helped by giving yourself extra ketones in a drink. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z If the only difference, according to the author, was the intensity of the workout why use an entirely different ketone formulation? Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z This keeps the body producing ketones and in and out of nutritional ketosis on a weekly basis. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Every rider also reported some degree of gastrointestinal upset after drinking the ketone supplement. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z Exogenous ketones are a tool, but ideally you have to take the time to adapt to really see the health benefits and athletic advantage. Can Ketones Rev Up Our Workouts? 2017-11-08T05:00:00Z |
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