Fruity Breath Odor
Fruity Breath Odor - Related Videos
01:05
Breathing
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2019
The process of breathing, inhaling and exhaling, involves the coordinated movement of the chest wall, the lungs, and the muscles that move them. Two muscle groups with important roles in breathing are the diaphragm, located directly below the lungs, and the intercostal muscles, which lie between the ribs. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and creating more room for the lungs to expand. When the intercostal muscles contract, the ribs...
06:41
Testing for Odor Discrimination and Habituation in Mice
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Cited by 66 •
2015
This manuscript describes a protocol to examine the olfactory system of rodents. The olfactory habituation/dishabituation test will allow investigators to determine whether a mouse habituates to a repeatedly presented odor and whether the mouse demonstrates dishabituation when presented a novel odor.
08:50
Visually Mediated Odor Tracking During Flight in Drosophila
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Cited by 8 •
2009
Here we describe how to optimize the acquired video image for an olfactory magnetic-tether (OMT) apparatus. We also describe two sample experimental protocols for studying visuo-olfactory fusion.
06:13
Combining a Breath-Synchronized Olfactometer with Brain Simulation to Study the Impact of Odors on Corticospinal Excitability and Effective Connectivity
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Cited by 2 •
2024
This paper describes using a breath-synchronized olfactometer to trigger single- and dual-coil transcranial magnetic stimulation (TMS) during odorant presentation synchronized to human nasal breathing. This combination allows us to objectively investigate how pleasant and unpleasant odors impact corticospinal excitability and brain-effective connectivity in a given individual.
02:53
Electrophysiological Recordings from Drosophila Sensilla in Response to Volatile Odorants
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2025
In this video, a live Drosophila fly is mounted in a tube for electrophysiological studies. Electrodes are positioned at the base of the sensillum to record specific neuronal responses to pheromones with the fly's olfactory receptor neurons.
FAQs
When glucose availability or insulin action is insufficient, cells increase fat use for energy and produce more ketone bodies. Acetone, one of these ketone bodies, enters the bloodstream, travels to the lungs, and leaves the body in exhaled air. Its volatility and solvent-like smell account for the distinctive odor detected during breathing.
Both situations can increase reliance on fat for energy, which raises ketone production and acetone release. In diabetic ketoacidosis, the odor may occur with high blood glucose and other concerning symptoms. During prolonged fasting or carbohydrate restriction, a milder odor may appear, so the smell alone does not identify the underlying cause.
Deep breathing is an important accompanying finding when fruity odor occurs in diabetic ketoacidosis. The combination suggests that the odor should be considered alongside other biological and clinical signs, including high blood glucose, excessive thirst, frequent urination, and nausea. Odor by itself remains an indicator rather than a diagnostic conclusion.
The odor reflects volatile compounds in exhaled air, especially acetone, but several metabolic states can increase ketone production. Diabetic ketoacidosis is one important possibility, while prolonged fasting and carbohydrate restriction may produce a milder odor. Reliable interpretation therefore requires considering associated findings such as glucose status and accompanying symptoms rather than relying on smell alone.
Treat the observation as a potentially useful metabolic clue, then compare it with the person’s symptoms and glucose-related findings. High blood glucose, excessive thirst, frequent urination, nausea, or deep breathing increase concern for diabetic ketoacidosis. A mild odor without those findings may fit fasting or carbohydrate restriction, but the observation still does not establish a diagnosis.
It is most relevant when assessing whether altered fuel use may be occurring, particularly when diabetic ketoacidosis is suspected. The finding connects cellular energy metabolism with respiratory biology because ketone-derived acetone reaches the lungs and is exhaled. It can also provide context during prolonged fasting or carbohydrate restriction, where ketone production may rise without the same implication.