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What is Neuroglycopenia and explain in detail?
Neuroglycopenia is a shortage of glucose (glycopenia) in the brain, usually due to hypoglycemia. Glycopenia affects the function of neurons, and alters brain function and behavior. Prolonged or recurrent neuroglycopenia can result in loss of consciousness, damage to the brain, and eventual death.

Signs and symptoms
Abnormal mentation, impaired judgment
Nonspecific dysphoria, anxiety, moodiness, depression, crying, fear of dying, suicidal thoughts
Negativism, irritability, belligerence, combativeness, rage
Personality change, emotional lability
Fatigue, weakness, apathy, lethargy, daydreaming
Confusion, amnesia, dizziness, delirium
Staring, "glassy" look, blurred vision, double vision
Automatic behavior
Difficulty speaking, slurred speech
Ataxia, incoordination, sometimes mistaken for "drunkenness"
Focal or general motor deficit, paralysis, hemiparesis
Paresthesia, headache
Stupor, coma, abnormal breathing
Generalized or focal seizures
Plasma glucose 20 mg/dL (1.1 mmol/L) or lowerNot all of the above manifestations occur in every case of hypoglycemia. There is no consistent order to the appearance of the symptoms. Specific manifestations vary by age and by the severity of the hypoglycemia. In older children and adults, moderately severe hypoglycemia can resemble mania, mental illness, drug intoxication, or drunkenness. In the elderly, hypoglycemia can produce focal stroke-like effects or a hard-to-define malaise. The symptoms of a single person do tend to be similar from episode to episode.
In the large majority of cases, hypoglycemia severe enough to cause seizures or unconsciousness can be reversed without obvious harm to the brain. Cases of death or permanent neurological damage occurring with a single episode have usually involved prolonged, untreated unconsciousness, interference with breathing, severe concurrent disease, or some other type of vulnerability. Nevertheless, brain damage or death has occasionally resulted from severe hypoglycemia.

Metabolic responses
Most neurons have the ability to use other fuels besides glucose (e.g. lactic acid, ketones)