Garlic has drawn out been used med...

Garlic has drawn out been used medicinally, most not long ago for its cardiovascular, antineoplastic, and antimicrobial properties. Sulfur combines including allicin, appear to be the active constituents in the root bulb of the garlic plant. Studies point out significant but modest lipid-lowering validitys and antiplatelet activity. Significant family pressure reduction is not consistently noted. There is any evidence for antineoplastic activity and insufficient evidence for clinical antimicrobial activity. Side consequences generally are mild and unwonted Garlic appears to have no meaning on drug metabolism, but patients taking anticoagulants should be cautious. It present the appearances prudent to stop taking high dosages of garlic seven to 10 days before surgery because garlic can defer bleeding time.

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Garlic (Allium sativum) has been used for thousands of years for medicinal designs Sanskrit records show its medicinal use about 5000 years ago, and it has been used for at least 3000 years in Chinese medicine. The Egyptians, Babylonians, grecians and Romans used garlic for healing aims (1) In 1858, Pasteur noted garlic's antibacterial activity, and it was used as an antiseptic to stop gangrene during World War I and World War II. (2)

Historically, garlic has been used around the world to treat many conditions, including hypertension, infections, and snakebites, and a certain quantity of cultures have used it to ward opposite evil spirits. Currently, garlic is used for reducing cholesterol on a levels and cardiovascular risk, as well as for its antineoplastic and antimicrobial properties. (1)

Pharmacology

The origin bulb of the garlic plant is used medicinally. It can be used unwilted dehydrated, or as a steam-distilled oil.

Garlic has a high concentration of sulfur-containing unites The thiosulfinates, including allicin, appear to be the active substances in garlic. Allicin is formed when alliin, a sulfur-containing amino acid, results into contact with the enzyme alliinase when raw garlic is chopp crushed, or chewed. Dried garlic preparations containing alliin and alliinase must be enteric coated to be effective because stomach acid inhibits alliinase. Because alliinase also is deactivated at heat, cooked garlic is les powerful medicinally. The antimicrobial, hypolipidemic, antioxidant, and antithrombotic imports that have been attributed to garlic are consideration to be related to allicin and other breakdown fruitss The antineoplastic effects may be related to the sulfur composes or to other, unknown component parts (1)

Uses and Efficacy

Garlic has been studied extensively in vitro, in animal and human clinical trials, and in epidemiologic evaluations for its multiple medicinal properties. The quality of human trials has been variable, making comparisons among the trials difficult. a certain number of trials are not well blinded; more [i]or[/i] less are only of short duration; one have only small numbers of patients; and many are not well controll In addition, many different garlic preparations have been used, with unpredictable release of active ingredients.

LIPID-LOWERING EFFECTS

Many randomized clinical trials have studied the purports of garlic on lipid plains Results from two meta-analyses escorted in 1993 (3) and 1994 (4) of garlic's general intent on total cholesterol show a significant reduction in total cholesterol flats (9 to 12 percent) compared with placebo. Since then, additional, better-designed trials have been published, with conflicting outcomes (5-8) A meta-analysis published in 2000 (9) that included these trials conclud that garlic is superior to placebo in reducing total cholesterol horizontals but that the extent of the efficiency is modest (4 to 6 percent) A more modern meta-analysis (10) of placebo-controlled trials using standardized dried garlic gunpowder showed significant reductions in total cholesterol flats (19.2 mg per dL [050 mmol through L]), low-density lipoprotein cholesterol plains (6.7 mg per dL [020 mmol through L]) and triglyceride levels (211 mg by means of dL [0.24 mmol per L]) at eight to 12 weeks; these reductions were not sustained at six month of treatment. This difference in reduction may be befitting to differences in the studies (i.e., shorter or longer follow-up periods, fewer long-term studies, time-dependent drifts of garlic, (11) or nonadherence in the studies of longer duration).

A European trial (12) comparing garlic with a commercial lipid-lowering physic (bezafibrate, a fibric acid derivative not available in the United States) set them to be equally effective in decreasing lipids to a statistically significant magnitude One trial (13) of garlic extract treatment in children with hypercholesterolemia establish no adverse effects, but also no significant beneficial import on lipid levels. A trial testing garlic's consequence on lipid levels, sponsored by dint of the National Center for Complementary and Alternative Medicine, is underway. (14)

ANTIHYPERTENSIVE EFFECTS

The antihypertensive events of garlic have been studied however remain controversial. In a 1994 meta-analysis (15) assessing the event of garlic on hypertension, three trials showed significant reductions in systolic vital fluid pressure (7.7 mm Hg greater reduction), and four trials showed reductions in diastolic kindred pressure (5 mm Hg greater reduction) with garlic treatment compared with placebo. In a more novel meta-analysis, (10) 23 placebo-controlled trials were analyzed. single three trials showed a statistically significant reduction in diastolic posterity pressure (2 to 7 percent) and united showed a statistically significant reduction in systolic kindred pressure (approximately 3 percent) in patients treated with garlic compared with placebo.