Lactase
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  Lactase



Lactase

    An enzyme in the small intestine needed to digest milk sugar (lactose).

RELATED TERMS
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Enzyme
A cellular protein whose shape allows it to hold together several other molecules in close proximity to each other. In this way, enzymes are able to induce chemical reactions in other substances with little expenditure of energy and without being changed themselves. Basically, an enzyme acts as a catalyst.

Intestine
The tube involved in digestion and extending from the stomach to the anus. Consists of the small intestine and the large intestine.

Sugar
A class of carbohydrates that taste sweet. Sugar is a quick and easy fuel for the body to use. Types of sugar are lactose, glucose, fructose, and sucrose.



SIMILAR TERMS
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Lactase deficiency
Lack of the lactase enzyme. Causes lactose intolerance.

Lactated ringers and dextrose 5 per cent in plastic container
Lactated ringers and dextrose 5 per cent in plastic container is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): calcium chloride; dextrose; potassium chloride; sodium chloride; sodium lactate.

Lactated ringers in plastic container
Lactated ringers in plastic container is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): calcium chloride; potassium chloride; sodium chloride; sodium lactate .

Lactation
The secretion of milk from the breasts; the period of suckling the young until weaning.

Lactation specialists
Individuals trained in the assistance of breastfeeding. Many are RNs or have a special certificate to aid new mothers.

Lactic Acidosis
The buildup of lactic acid in the body. The cells make lactic acid when they use glucose (sugar) for energy. If too much lactic acid stays in the body, the balance tips and the person begins to feel ill. The signs of lactic acidosis are deep and rapid breathing, vomiting, and abdominal pain. Lactic acidosis may be caused by diabetic ketoacidosis or liver or kidney disease. Lactic acidosis is also a rare side effect of a diabetes medication called metformin.

Lactogenic hormone
The pituitary hormone that stimulates the production of milk from the mammary glands.

Lactose
The sugar found in milk. The body breaks lactose down into galactose and glucose.

Lactose intolerance
Inability to digest lactose, the sugar in milk. This condition occurs because the body does not produce the lactase enzyme.

Lactose tolerance test
A test for lactase deficiency.

Lactulose
Lactulose is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): lactulose.



PREVIOUS AND NEXT TERMS
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Lovesickness
The personal experience and manifest expression of agony when the partner with whom one has fallen in love is a total mismatch whose response is indifference, or a partial mismatch whose reciprocity is incomplete, deficient, anomalous, or otherwise unsatisfactory.

Lust
Longing, eagerness, inclination, or sensuous desire; normal sexual desire, or sexual desire stigmatized as degrading passion.

Lust murder
See erotophonophilia.

Lust murderism
The very rare condition in which a person is dependent on sadistic homicide of the partner, or the restaging of it in fantasy, in order to obtain erotic arousal and facilitate or achieve orgasm. Recorded cases are either heterosexual or homosexual, but not bisexual. The converse condition is the masochistic staging of one's own murder (autoassassinatophilia).

Labor contractions
Rhythmic tightening of the muscular wall of the uterus to push the fetus down through the vagina during childbirth.

Lactase

Lactase deficiency
Lack of the lactase enzyme. Causes lactose intolerance.

Lactose
The sugar found in milk. The body breaks lactose down into galactose and glucose.

Lactose intolerance
Inability to digest lactose, the sugar in milk. This condition occurs because the body does not produce the lactase enzyme.

Lactose tolerance test
A test for lactase deficiency.

Laparoscope
A thin tube with a tiny video camera attached. Used to look inside the body and see the surface of organs. See also endoscope.

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