Research Article

Alpha-Amylase Inhibition and Antioxidative Capacity of Some Antidiabetic Plants Used by the Traditional Healers in Southeastern Nigeria

Table 1

Plants used for the treatment of DM in Ikwuano and Isiala Mbano LGAs in southeast Nigeria.

S/NBotanical namesCommon namesFamily namePlant parts usedMethod of preparation

1Allium sativum LGarlic (C)
Aayi (Y)
Ayo-Ishi (I)
Tafarunna (H)
AmaryllidaceaeCloveThe clove of garlic is boiled and poured into a container and taken orally 3 times a day

2Aloe vera (L) Burm. f.Ahon-erin (Y)
Barbados (C)
AsparagaceaeLeafThe liquid from the leaves is boiled to powder and soaked in water and 1/2 of a cup of decoction is taken orally

3Andrographis paniculata WallKing of bitter (C)
Mejemeje (Y)
AcanthaceaeRootThe decoction is prepared and taken orally

4Anacardium occidentale (L)Cashew (C)
Kaju (Y)
Okpokpo (I)
Kanju (H)
AnacardiaceaeLeafThe leaf of Anacardium occidentale is soaked in dry gin

5Azadirachta indica NeemDongoyaro (Y)
Ogwu (I)
MeliaceaeLeafThe decoction is made from boiled fresh roots and 2 spoonfuls are taken orally

6Anthocleista djalonensis A. chevCabbage (C) 
Sapo (Y)
Akpakoro (I)
Putaa (H)
GentianaceaeLeafThe leaf of Anthocleista djalonensis is boiled and poured into a container

7Blighia unijugata L.Ako-isin (Y)
Okpu ulla (I)
Gwanja-kusa (H)
SapindaceaeRoot, bark, leafThe bark is powdered and infusion of 2 teaspoonfuls are taken orally

8Bridelia ferruginea (Benth)Ola (I)
Iralodan (Y)
EuphorbiaceaeRoot, leaf, barkFresh leaves are boiled with water and two teaspoonfuls of decoction are taken orally

9Catharanthus roseus (L.) G. DonMadagascar-Periwinkle (C)
Iyere (Y)
Oziza (I)
ApocynaceaeWhole plantsThe decoction is made from boiled fresh roots and two spoonfuls are taken orally three times a day

10Ceiba pentandra (L) GaertnerKapok
Araba (Y)
Akpu-owu (I)
Rimi (H)
Silk cotton (C)
MalvaceaeLeafThe fresh leaf is boiled and 1/2 of a cup is taken orally three times a day

11Chlorophora excelsa (Welw.) BenthOji (I)MoraceaeRootThe root of Chlorophora excelsa is cut into sizes and about 3 pieces are soaked in a bottle containing soda water

12Costus afer Ker-GawlOkpoto (I)
Kakizawa (H)
Tete-egun (Y)
CostaceaeFruits, root, barkThe decoction of the stem or powdered fruits is used in the treatment of diabetes

13Gongronema latifolium (Benth)Utazi (I)
Bush buck (C)
Arokeke (Y)
ApocynaceaeRoot, leaf, barkThe leaves is infused with hot water and drunk after cooling while the decoction of the root is prepared and taken orally 3 times a day

14Ocimum gratissimum L.Efinrin (Y)
Nchonwu (I)
Daidoya (H)
Scent leaf (C)
LamiaceaeLeafThe infusion of the leaf is prepared and 1/2 of glass cup is taken orally 3 times a day

15Loranthus micranthus Linn.Ogbuotele egbu nkita (I)
Mistletoe (C)
LoranthaceaeLeafThe leaf of Loranthus micranthus is squeezed and the resultant mixture is poured into a container and taken orally

16Persea Americana MillUbe bekee (I)
Igba (Y)
Avocado (C)
LauraceaeSeedThe seed is crushed and mixed with edible plantain for consumption

17Picralima nitida (Stapf) T. Durand and H. DurandOtoose (I)ApocynaceaeSeedThe seed is soaked in a bottle containing soda water overnight and taken orally

18Strophanthus hispidus DC.Osisikaguru (I)ApocynaceaeRootThe root is boiled together with the root of Vernonia amygdalina and the resulting mixture is poured into a bottle

19Synsepalum dulcificum L.Agbayun (Y)SapotaceaeLeafThe leaf is squeezed and the resultant mixture is poured into a container and 1/2 glass cup is taken orally.

20Theobroma cacao L.Cocoa (C)MalvaceaeSeedThe seed is soaked in a bottle containing soda water overnight and taken orally

21Vernonia amygdalina DelileEwuro (Y),
Shuwaka (H)
Onugbo (I)
AsteraceaeLeaf, rootThe decoction of the root or leaf is prepared and 1/2 of a glass cup is taken orally

22Zingiber officinale RoscoeAtale (Y)
Jinga (I)
Chita (H)
Ginger (C)
ZingiberaceaeRhizomeFresh rhizomes are washed and crushed and boiled and 1/2 of a cup of decoction is taken orally

Y: Yoruba; I: Igbo; C: common name; LGAs: local government areas; DM: diabetes mellitus.