Galega officinalis | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fabales |
Family: | Fabaceae |
Subfamily: | Faboideae |
Genus: | Galega |
Species: | G. officinalis |
Binomial name | |
Galega officinalis | |
Synonyms [1] | |
List
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Galega officinalis, commonly known as galega [2] or goat's-rue, [3] is a herbaceous plant in the subfamily Faboideae of the legume family Fabaceae. [4] It is native to parts of northern Africa, western Asia and Europe, but is widely cultivated and naturalised elsewhere. [4] [2] The plant has been extensively cultivated as a forage crop, an ornamental, a bee plant, and as green manure. [4] [5]
G. officinalis is rich in galegine, a substance with blood glucose-lowering activity and the foundation for the discovery of metformin, [6] a treatment for managing symptoms of diabetes mellitus. [7] In ancient herbalism, goat's-rue was used as a diuretic. [8] It can be poisonous to mammals, but is a food for various insects. [4]
The English name "goat's-rue" is a translation of the Latin Ruta capraria, used for the plant in 1554 when it was considered to be related to Ruta graveolens , or common rue. [9] The Latin specific epithet officinalis refers to plants with some medicinal, culinary or herbal attributes. [10]
Galega bicolor is a synonym.
Widely distributed throughout temperate regions of the world, predominantly in Europe, the plant is a hardy perennial that blooms in the summer months on grasslands, wetlands, and riverbanks, and is classified as an invasive weed in many parts of North America. [4] [5] It has also been found in South America, North Africa, Pakistan, Turkey, and New Zealand. [4] [5]
In 1891 in the United States, Galega officinalis was introduced experimentally at Utah State University for potential use as a forage crop, but escaped cultivation and is now an agricultural pest. [4] As a result, it has been placed on the Federal Noxious Weed List in the United States. It was collected in Colorado, Connecticut and New York prior to the 1930s, and in Maine and Pennsylvania in the 1960s, but the populations appear to have died out. [5]
Although not thoroughly studied with 21st century methods, G. officinalis has been analyzed for its constituents, which include galegine, hydroxygalegine, several guanidine derivatives, such as 4-hydroxygalegine flavones, flavone glycosides, kaempferol, and quercetin. [7] [8] In addition to its purported effect to lower blood glucose levels and induce diuresis, goat's rue was used as a herbal tonic in folk medicine practices of medieval Europe to treat bubonic plague, worms, and snake bites. [7] [8]
Once used in traditional medicine over centuries, G. officinalis is at the foundation of the biguanide class of antidiabetic drugs, which also included phenformin and buformin (both discontinued). [7] [11]
G. officinalis contains the phytochemicals, galegine and guanidine, both of which decrease blood sugar, but were discovered to cause adverse effects in human studies. [7] [11] The study of galegine and related molecules in the first half of the 20th century led to development of oral antidiabetic drugs. [7] [11] Research on other compounds related to guanidine, including biguanide, led ultimately to the discovery of metformin (trade name, Glucophage), used in the 21st century for management of diabetes by decreasing liver glucose production and increasing insulin sensitivity of body tissues. [7] [12]
Goat's rue may interfere with prescribed diabetes drugs, iron absorption, and anticoagulants. [8] It may cause headache or muscular weakness, and its safety during pregnancy or breastfeeding is unknown. [8]
Metformin, sold under the brand name Glucophage, among others, is the main first-line medication for the treatment of Type 2 diabetes, particularly in people who are overweight. It is also used in the treatment of polycystic ovary syndrome, and is sometimes used as an off-label adjunct to lessen the risk of metabolic syndrome in people who take antipsychotic medication. It has been shown to inhibit inflammation, and is not associated with weight gain. Metformin is taken by mouth.
Drugs used in diabetes treat diabetes mellitus by decreasing glucose levels in the blood. With the exception of insulin, most GLP-1 receptor agonists, and pramlintide, all diabetes medications are administered orally and are thus called oral hypoglycemic agents or oral antihyperglycemic agents. There are different classes of hypoglycemic drugs, and selection of the appropriate agent depends on the nature of diabetes, age, and situation of the person, as well as other patient factors.
Sulfonylureas or sulphonylureas are a class of organic compounds used in medicine and agriculture. The functional group consists of a sulfonyl group (-S(=O)2) with its sulphur atom bonded to a nitrogen atom of a ureylene group (N,N-dehydrourea, a dehydrogenated derivative of urea). The side chains R1 and R2 distinguish various sulfonylureas. Sulfonylureas are the most widely used herbicide.
Acarbose (INN) is an anti-diabetic drug used to treat diabetes mellitus type 2 and, in some countries, prediabetes. It is a generic sold in Europe and China as Glucobay, in North America as Precose, and in Canada as Prandase.
Saponaria officinalis is a common perennial plant from the family Caryophyllaceae. This plant has many common names, including common soapwort, bouncing-bet, crow soap, wild sweet William, and soapweed. There are about 20 species of soapworts altogether.
Exenatide, sold under the brand name Byetta among others, is a medication used to treat type 2 diabetes. It is used together with diet, exercise, and potentially other antidiabetic medication. It is a treatment option after metformin and sulfonylureas. It is given by injection under the skin.
Biguanide is the organic compound with the formula HN(C(NH)NH2)2. It is a colorless solid that dissolves in water to give a highly basic solution. These solutions slowly hydrolyse to ammonia and urea.
Inhibitors of dipeptidyl peptidase 4 are a class of oral hypoglycemics that block the enzyme dipeptidyl peptidase-4 (DPP-4). They can be used to treat diabetes mellitus type 2.
Alpha-glucosidase inhibitors (AGIs) are oral anti-diabetic drugs used for diabetes mellitus type 2 that work by preventing the digestion of carbohydrates. They are found in raw plants/herbs such as cinnamon and bacteria. Carbohydrates are normally converted into simple sugars (monosaccharides) by alpha-glucosidase enzymes present on cells lining the intestine, enabling monosaccharides to be absorbed through the intestine. Hence, alpha-glucosidase inhibitors reduce the impact of dietary carbohydrates on blood sugar.
Phenformin is an antidiabetic drug from the biguanide class. It was marketed as DBI by Ciba-Geigy, but was withdrawn from most markets in the late 1970s due to a high risk of lactic acidosis, which was fatal in 50% of cases.
Buformin (1-butylbiguanide) is an oral antidiabetic drug of the biguanide class, chemically related to metformin and phenformin. Buformin was marketed by German pharmaceutical company Grünenthal as Silubin.
Pioglitazone/metformin, sold under the brand name Actoplus Met among others, is a fixed-dose combination anti-diabetic medication used to improve glycemic control in adults with type 2 diabetes. It contains pioglitazone, a thiazolidinedione, and metformin, a biguanide.
Anchusa officinalis, also knowns as common bugloss or common alkanet, is a species of flowering plant in the borage family. It is native to Europe and small parts of western Asia, but has been escaped from cultivation to grow in additional locations in Europe and the Americas. The flowers are noted for their popularity with bumblebees due to a large nectar flow. The plants have been used in traditional medicines, but were falling out of favor by the early 1800s. They are still planted in gardens for their popularity with bees and their blue flowers.
Officinalis, or officinale, is a Medieval Latin epithet denoting organisms—mainly plants—with uses in medicine, herbalism and cookery. It commonly occurs as a specific epithet, the second term of a two-part botanical name. Officinalis is used to modify masculine and feminine nouns, while officinale is used for neuter nouns.
Synthalin was an oral anti-diabetic drug. Discovered in 1926 it was marketed in Europe by Schering AG of Berlin as a synthetic drug with insulin-like properties that could be taken orally. However, it was toxic to the liver and kidney and was withdrawn from the market in the early 1940s.
Charles Joseph Tanret was a French pharmacist and chemist.
Empagliflozin, sold under the brand name Jardiance, among others, is an antidiabetic medication used to improve glucose control in people with type 2 diabetes. It is taken by mouth.
Galega, goat's rue, is a genus of flowering plants in the legume family, Fabaceae, native to central and southern Europe, western Asia and tropical east Africa. They are tall, bushy, herbaceous perennials with erect racemes of pea-like flowers in shades of white, pink, blue or mauve. Their preferred habitats are sunny damp meadows or slopes.
Galegine is a toxic chemical compound that has been isolated from Galega officinalis. It has also been found to be the principal cause of the toxicity of poison sedge.
Bexagliflozin, sold under the brand name Brenzavvy, is an antidiabetic medication used to improve glycemic control in adults with type 2 diabetes. It is a sodium-glucose cotransporter 2 (SGLT2) inhibitor that is taken by mouth.