15.11.2012 Views

Medicinal Plants Classification Biosynthesis and ... - Index of

Medicinal Plants Classification Biosynthesis and ... - Index of

Medicinal Plants Classification Biosynthesis and ... - Index of

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Management <strong>of</strong> Diabetes with Diet <strong>and</strong> Plant-Derived Drugs<br />

pressure <strong>and</strong> elevated cholesterol), adverse effects <strong>of</strong> that therapy, contraindications to<br />

therapy, issues which may affect compliance (timing <strong>of</strong> medication, frequency <strong>of</strong> dosing) <strong>and</strong><br />

cost to the patient <strong>and</strong> the healthcare system should be considered alongside the magnitude <strong>of</strong><br />

change in blood sugar control that each medication will provide. Moreover, the relatively<br />

complication-free option <strong>of</strong> diet <strong>and</strong> life style change should be considered.<br />

Management <strong>of</strong> Diabetes with Traditional<br />

<strong>Medicinal</strong> <strong>Plants</strong> <strong>and</strong> Dietary Control<br />

An important research area is the discovery <strong>and</strong> development <strong>of</strong> more effective <strong>and</strong> safer<br />

antidiabetic agents. In this context, medicinal plants <strong>and</strong> diet continue to play an important<br />

role in the treatment <strong>of</strong> diabetes, particularly in developing countries where most people have<br />

limited resources <strong>and</strong> do not have access to modern treatment (5). A recent survey <strong>of</strong> the<br />

frequency <strong>of</strong> use <strong>of</strong> complementary <strong>and</strong> alternative medicine (CAM) in diabetes patients<br />

found that most <strong>of</strong> the patients using CAM are better educated, born in cities, live in large<br />

families <strong>and</strong> were suffering from diabetes for longer duration. This included herbal<br />

preparations (garden thyme, pomegranate syrup, stinging nettle, dog-rose, chervil, cinnamon,<br />

<strong>and</strong> bitter almond), acupuncture <strong>and</strong> meditation. Further, it was reported that more than half<br />

<strong>of</strong> the subjects who were using CAM experienced beneficial effects (9).<br />

Many plants <strong>and</strong> their active chemical compounds have demonstrated activity in the<br />

treatment <strong>of</strong> Type II diabetes <strong>and</strong> various other disorders. According to ethno botanical<br />

information, more than 800 plants are used as traditional remedies in one or other form for<br />

the treatment <strong>of</strong> diabetes (10). Many different moieties, chemical groups <strong>and</strong> chemical<br />

constituents with therapeutic efficacy have been isolated <strong>and</strong> purified from plants which were<br />

traditionally used to treat disease. One should note that metformin, the single most prescribed<br />

agent for the treatment <strong>of</strong> diabetes, originated from herbal medicine (11, 12) <strong>and</strong> was derived<br />

from galegine. Experimental <strong>and</strong> clinical evaluations <strong>of</strong> galegine, isolated from Galega<br />

<strong>of</strong>ficinalis provided the pharmacological <strong>and</strong> chemical basis for the subsequent discovery <strong>of</strong><br />

metformin (11, 13). 1- Deoxynojirimycin (DNJ), a potent α-glucosidase inhibitor which helps<br />

in prevention <strong>of</strong> diabetes, was isolated from the water extract <strong>of</strong> leaves <strong>of</strong> mulberry trees<br />

(Morus alba L.) (14).<br />

Diet has long been the keystone in the treatment <strong>of</strong> diabetes <strong>and</strong> various other diseases.<br />

The Ebers Papyrus prescribed in 1550 BC that a diet rich in wheatgerm <strong>and</strong> ochra has<br />

glucose-lowering efficacy (12). Diet <strong>and</strong> lifestyle play an important role in the management<br />

<strong>of</strong> several diseases, including diabetes. Before the introduction <strong>of</strong> the therapeutic use <strong>of</strong><br />

insulin, diet was the main form <strong>of</strong> treatment <strong>and</strong> dietary measures included the use <strong>of</strong><br />

traditional medicines mainly derived from plants (15).<br />

The ancient Indian medical system <strong>of</strong> Ayurveda, which is based on scientific principles,<br />

has also described diabetes under the name madhumeha, stating it to be mainly influenced by<br />

dietary factors such as excessive eating <strong>of</strong> sugary, acidic or salty food; certain non-vegetarian<br />

foodstuffs; <strong>and</strong> lifestyle factors such as lack <strong>of</strong> exercise, overindulgence in sleep, sedentary<br />

habits, lack <strong>of</strong> cleanliness <strong>and</strong> ―suppression <strong>of</strong> natural urges‖. Current studies have confirmed<br />

171

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!