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Topic: Lactase

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	lactase (Site not responding. Last check: 2007-10-26)
		Lactase persistence, as this is called, allows satisfactory digestion of significant quantities of fresh milk and is common in Northern Europeans and certain African and Arabian normadic tribes.
		Lactase non-persistence, in which lactase is not present in adults, is responsible for adult-type hypolactasia, a condition which results in diarrhoea, flatulence and meteorism when significant quantities of fresh milk are drunk.
		Lactase persistance is associated, in Caucasians, with one particular haplotype (A) of the lactase gene (Harvey et al 1998) and the causative element is cis-acting (Wang et al, 1995) (Enattah et al, 2002).
	www.gene.ucl.ac.uk /mucin/lactase.html (337 words)

	Lactose & Lactase K-12 Experiments for Lesson Plans & Science Fair Projects
		Lactase (LCT), a member of the Î²-galactosidase family of enzyme, is involved in the hydrolysis of the disaccharide lactose into constituent galactose and glucose monomers.
		In humans, lactase is present predominantly along the brush border membrane of the differentiated enterocytes lining the villi of the small intestine.
		Lactase persistence, the genetic trait in which intestinal lactase activity persists at childhood levels into adulthood, varies in frequency in different human populations, being most frequent in northern Europeans and certain African and Arabian nomadic tribes, who have a history of drinking fresh milk.
	www.juliantrubin.com /encyclopedia/biochemistry/lactose_lactase.html (780 words)

	Lactase treated feeds to promote growth and feeding tolerance in preterm infants
		Lactase is the last of the major intestinal disaccharidases to develop in preterm infants.
		Because of inadequate lactase activity, preterm infants are unable to digest lactose.
		Lactase preparations could potentially be used to hydrolyze lactose in formulas and breast milk to minimize lactose malabsorption in preterm infants.
	www.cochrane.org /reviews/en/ab004591.html (550 words)

	Lactase Enzyme Supplements
		Lactase is a common enzyme that exists in the small intestine of many people.
		Lactase has been used in connection with the following conditions in lactose intolerant individuals: diarrhea, indigestion, heartburn, and irritable bowel syndrome.
		Lactase drops, capsules, and tablets can also be taken directly as needed.
	www.nutrasanus.com /lactase.html (287 words)

	Lactase - Drugs & Vitamins - Drug Library - DrugDigest
		LACTASE (Dairyease®, Lac-Dos®, Lactaid®, Lactrase®, RiteAid® Dairy Relief™, Surelac®, Walgreens® Dairy Digestive™) is an enzyme that aids in the digestion of lactose.
		When the lactase enzyme is not present, lactose intolerance can occur after eating dairy foods and cause symptoms like diarrhea, stomach pain, bloating and gas.
		Lactase should decrease symptoms of lactose intolerance such as diarrhea, stomach pain, bloating and gas.
	www.drugdigest.org /DD/DVH/Uses/0,3915,7484\|Lactase,00.html (607 words)

	AllRefer Health - Lactose Intolerance (Dairy Product Intolerance, Disaccharidase Deficiency, Lactase Deficiency, Milk ...
		It is caused by a deficiency of the enzyme lactase.
		Lactase deficiency may also occur as a result of intestinal diseases such as celiac sprue and gastroenteritis, or it may follow gastroduodenal surgery.
		Temporary lactase deficiency can result from viral and bacterial enteritis, especially in children, when the mucosal cells of the intestine are injured.
	health.allrefer.com /health/lactose-intolerance-info.html (591 words)

	Nutrition Journal \| Full text \| In vitro digestion and lactase treatment influence uptake of quercetin and quercetin ...
		To examine the effect of lactase on quercetin uptake from shallots, shallots were digested then incubated with lactase (50, 100, 300, and 1000 units/g shallot) for 20 minutes at 37°C. The digested shallot homogenates and the digested plus lactase treated shallot homogenates were diluted 1:2 in HBSS and placed on the cells.
		Since lactase is an important enzyme in the metabolism and subsequent absorption of quercetin glucosides, lactose intolerant individuals may have a reduced capability to hydrolyze quercetin glucoside for further absorption across the small intestinal wall.
		The lactase activity of our cells was nearly 10 times higher than previously reported values for Caco-2 cells of 0.3 mU/mg protein of lactase activity [27], and it is quite possible that the lactase enzyme in our Caco-2 cells is already expressed to the fullest extent.
	www.nutritionj.com /content/4/1/1 (6695 words)

	Lactase enzyme supplement (Beta-galactosidase)
		Lactase (or β-galactosidase) is the enzyme involved in the hydrolysis of lactose to galactose and glucose.
		Lactase is the enzyme in the small intestine that digests lactose (the naturally occurring sugar in milk).
		Lactase non-persistence, in which lactase is not present in adults, is responsible for adult-type hypolactasia, a condition which results in diarrhoea, flatulence and meteorism when significant quantities of fresh milk are drunk.
	www.greatvistachemicals.com /biochemicals/lactase.html (826 words)

	Healthopedia.com - Lactose Intolerance (Lactase Deficiency)
		When lactase is missing from the intestine, the condition is called lactase deficiency.
		Congenital lactase deficiency is a rare disorder that appears to run in families.
		The enzyme lactase is present in the baby's intestine from about the middle of pregnancy onward.
	www.healthopedia.com /lactose-intolerance (467 words)

	Lactose Intolerance Causes, Symptoms, Diagnosis and Treatment on MedicineNet.com
		Lactose intolerance is caused by reduced or absent activity of lactase that prevents the splitting of lactose (lactase deficiency).
		Lactase deficiency may occur because of a congenital absence (absence from birth) of lactase due to a mutation in the gene that is responsible for producing lactase.
		A diagnosis of lactase deficiency is made when the amount of lactase in the intestine is reduced, but a diagnosis of lactose intolerance is made only when the reduced amount of lactase causes symptoms.
	www.medicinenet.com /lactose_intolerance/article.htm (785 words)

	Lactase Enzymes
		Lactase an enzyme that is present in the intestines.
		Lactase can be mixed in with milk one day before drinking it to lower the amount of lactose in the milk which makes it easier to digest.
		Supplemental lactase is also available in drops or pills and can be ingested right before drinking milk or eating high-lactose foods.
	www.vitaguide.org /lactase.html (284 words)

	National Centre for Biotechnology Education \| Enzymes \| Lactozym
		Lactase is widely used in the manufacture of dairy products such as fermented milks, ice-cream, milk drinks and even lactose-reduced milk for cats.
		Lactase is used in the production of lactose-reduced milk for people who are intolerant of lactose.
		After lactase treatment, whey may be purified and concentrated to form syrups for use as a sweetener in various food products.
	www.ncbe.reading.ac.uk /NCBE/MATERIALS/ENZYMES/lactozym.html (558 words)

	Lactase Deficiency - Yogurt Helps
		Lactase is the enzyme found in the human gastrointestinal tract that is capable of breaking the two sugars apart.
		The level and activity of lactase in the intestines is usually high enough to prevent the build-up of lactose.
		People who are lactase deficient can’t break down the lactose and this results in bloating, cramps and diarrhea Most lactase deficient people have learned over the years either to avoid milk products or to consume them in small quantities to prevent the symptoms.
	www.medicinalfoodnews.com /vol03/issue8/yogurt.htm (426 words)

	eMedicine - Lactose Intolerance : Article by Stefano Guandalini, MD (Site not responding. Last check: 2007-10-26)
		Childhood- and adult-onset lactase deficiency are extremely common and are inherited in an autosomal recessive manner.
		Acquired lactase deficiency, which is, by definition, a transient phenomenon, is due to damage of the intestinal mucosa by an infectious, allergic, or inflammatory process and resolves once the disease process is corrected and healing of the intestinal mucosa restores the brush border enzymes.
		Secondary lactase deficiency due to intestinal mucosal injury can appear at any age; however, children younger than 2 years are very susceptible because of many factors, including a high sensitivity of the gut to infectious agents, low reserve because of the small intestinal surface area, and high reliance on milk-based products for nutrition.
	www.emedicine.com /ped/topic1270.htm (2608 words)

	Lactase
		Lactase in pill form is not even absorbed into the body but stays in your intestines until being broken down into harmless protein fragments.
		As raw lactase comes in both a pharmaceutical strength and a food grade strength, it is harder to determine FCC unit equivalents in those cases, but 125 mg should be effective, as several manufacturers give that number as the equivalent to 1750 FCC units.
		Taking some lactase with a small amount of food at that point may allow it to catch up with whatever lactose is still remaining.
	ourworld.compuserve.com /homepages/stevecarper/LACTASE.htm (2080 words)

	Lactase information page. All about lactase and the role it plays in your diet.
		Lactase is required to break down lactose (a primary sugar found in mammalian milk) and is produced in the small intestine, which breaks lactose into two simpler sugars.
		Some people do not produce enough lactase and are often referred to as lactose intolerant, and symptoms may include cramps, gas as well as diarrhea.
		If the intestines do not produce enough (or any) lactase, the milk sugar (lactose) is not digested and moves into the colon, where it is fermented by bacteria - producing hydrogen, carbon dioxide and organic acids, which can result in diarrhea, gas and cramps.
	www.anyvitamins.com /lactase-info.htm (429 words)

	Enzymes, Digestive Enzymes - Enzymedica - Enzyme Experts for Candidase, Lactase, Nattokinase, Amylase & More - ...
		Knowledge is power and it is our determination to provide well researched and well documented information to educate as many consumers and retailers as possible of the benefits of enzymes in maintaining and promoting optimal health.
		Therapeutic Enzymes - Candidase, Lactase, Nattokinase, Amylase and More
		Through doctors and clinicians, the company continues to research the benefits of plant based enzymes to further enhance the quality of living.
	www.enzymedica.com (452 words)

	HON Allergy Glossary Lactase
		Lactose must be broken down by lactase into the simple sugars galactose and glucose in order to be absorbed.
		An intestinal enzyme that is needed to digest lactose.
		The digestive system does not produce enough of this enzyme to break down the lactose into simpler sugars (glucose and galactose).
	www.hon.ch /Library/Theme/Allergy/Glossary/lactase.html (163 words)

	Lactase - www.Vitacost.com (Site not responding. Last check: 2007-10-26)
		Lactase drops can be added to regular milk 24 hours before drinking to reduce lactose levels.
		Lactase drops, capsules, and tablets can also be taken directly, as needed, immediately before a meal that includes lactose-containing dairy products.
		The degree of lactose intolerance varies by individual, so a greater or lesser amount of lactase may be needed to eliminate symptoms of lactose intolerance.
	www.vitacost.com /science/hn/Supp/Lactase.htm (685 words)

	MedlinePlus Medical Encyclopedia: Lactose intolerance
		Lactase deficiency may also occur as a result of intestinal diseases such as celiac sprue and gastroenteritis, or it may follow bowel surgery.
		Temporary lactase deficiency can result from viral and bacterial infections, especially in children, when the cells lining the intestine are injured.
		Lactase enzymes can be added to regular milk or may be taken in capsule or chewable tablet form.
	www.nlm.nih.gov /medlineplus/ency/article/000276.htm (789 words)

	Lactase, Milk Sugar Enzyme
		Lactase drops can be added to regular milk 24 hours before drinking to reduce lactose levels.
		The degree of lactose intolerance varies by individual, so a greater or lesser amount of lactase may be needed to eliminate symptoms of lactose intolerance.
		Lactase is safe and does not produce side effects.
	www.truestarhealth.com /Notes/2872006.html (451 words)

	Lactase Deficiency -- eCureMe.com
		Lactase, an enzyme normally found in the intestine, breaks down lactose and its by products for use in the body.
		When there is a deficiency of lactase, the lactose remains in the intestine, and is excreted in bowel movements.
		Lactase supplementation to the diet is feasible and effective for a majority of patients with this condition.
	www.ecureme.com /emyhealth/data/Lactase_Deficiency.asp (239 words)

	BioCare Lactase Enzyme for lactose intolerance
		BioCare's Liquid Lactase, which is derived from Aspergillus oryzae, has been shown to be effective in hydrolysing milk sugar (Lactose), thus enabling individuals who are lactose intolerant to drink and eat milk products such as yoghurt, cheese and ice cream.
		Lactase hydrolyses the lactose in milk into glucose and galactose, two forms of simple sugars that can be digested and tolerated by lactose intolerant individuals
		Lactase has been shown to be effective in breaking down milk sugar (lactose).
	www.health4youonline.com /health_supplements_biocare_lactase_enzym_b12415.htm (942 words)

	Lactose intolerance - MayoClinic.com
		The problem underlying lactose intolerance is a lack of lactase — an enzyme produced by the lining of your small intestine.
		Lactase breaks down lactose so that it can be absorbed into your bloodstream.
		A deficiency of lactase leads to problems in breaking down and absorbing milk sugar.
	www.mayoclinic.com /health/lactose-intolerance/DS00530 (298 words)

	Lactase Enzyme Supplement for Lactose Intolerance by Enzymedica: The Enzyme Experts
		Lactase is the enzyme in the small intestine that digests lactose (A dairy sugar).
		Normally, lactase breaks lactose down into a form that can be easily absorbed by the blood.
		When there is not enough lactase to digest the amount of lactose consumed, water is retained in the bowel, which, results in bloating and diarrhea.
	www.enzymedica.com /products/Lacto (391 words)

	Lactase deficiency - WrongDiagnosis.com - WrongDiagnosis.com
		Lactase deficiency: The condition resulting from the absence or deficiency of LACTASE in the MUCOSA cells of the GASTROINTESTINAL TRACT, and the inability to break down LACTOSE in milk for ABSORPTION.
		This inability results from a shortage of the enzyme lactase, which is normally produced by the cells that line the small intestine.
		Lactase is an enzyme that is in the lining of the gut.
	www.wrongdiagnosis.com /medical/lactase_deficiency_printer.htm (736 words)

	Lactase_Assay
		Many individuals lose the ability produce lactase, and therefore to digest lactose as they enter their teens.
		We will be assaying the lactase content in commercial tablets, and use this enzyme as a typical enzyme in our subsequent studies.
		Calculate the number of units of lactase (1.000 OD unit/15 min) in the original tablet.
	biology.clc.uc.edu /Fankhauser/Labs/Cell_Biology/Lactase/Lactase_Assay.htm (631 words)

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