Net Photosynthesis of Calluna vulgaris (L.) Hull

A Physiological and Mathematical Study of the Growth and Productivity of a Calluna-Sphagnum Community. I. Net Photosynthesis of Calluna vulgaris L. Hull

Journal of Applied Ecology ◽

10.2307/2401387 ◽

1970 ◽

Vol 7 (2) ◽

pp. 363 ◽

Cited By ~ 22

Author(s):

J. Grace ◽

H. W. Woolhouse

Keyword(s):

Net Photosynthesis ◽

Calluna Vulgaris ◽

Mathematical Study

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Amount of antioxidative compounds in herbs of Calluna vulgaris (L.) HULL originating from three different altitudes

Planta Medica ◽

10.1055/s-2007-987136 ◽

2007 ◽

Vol 73 (09) ◽

Author(s):

G Rieger ◽

M Müller ◽

H Guttenberger ◽

F Bucar

Keyword(s):

Calluna Vulgaris ◽

Different Altitudes

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Search for Compounds Suppressing Intestinal α-Glucosidase Expression in Caco-2 Cells

ICONIET PROCEEDING ◽

10.33555/iconiet.v2i2.18 ◽

2019 ◽

Vol 2 (2) ◽

pp. 96-101

Author(s):

Kota Noda ◽

Eisuke Kato ◽

Jun Kawabata

Keyword(s):

Blood Glucose ◽

Intestinal Tract ◽

Cell Model ◽

Epigallocatechin Gallate ◽

Calluna Vulgaris ◽

Active Principle ◽

Intestinal Epithelial ◽

Mrna Expression Level ◽

Epicatechin Gallate ◽

Control Post

Diabetes is a chronic disease characterized by elevated blood glucose level.Reducing carbohydrate absorption from the intestinal tract is an effective strategy to control post-meal blood glucose level. Inhibition of intestinal α-glucosidase, involved in digestion of carbohydrates, is known as an approach to accomplish this. On the other hand, reduction of α-glucosidase amount is expected to work in the similar manner. However, none of the previousstudy pursues this approach. A convenient assay was developed to evaluate α-glucosidase amount employing Caco-2 cells, the intestinal epithelial cell model reported to express α-glucosidase. Sixty plants were screened and two candidate plants, Calluna vulgaris and Perilla frutescens var. crispa were found to reduce α-glucosidase expression. C. vulgaris extract was subjected to activity guided isolation. Proanthocyanidin was identified as the active principle which was analyzed by thiol decomposition to reveal the components as a mixture ofcatechin, epicatechin, epigallocatechin, and A type procyanidin dimer. The proanthocyanidin suppressed about 30% of α-glucosidase amount evaluated through convenient assay, and suppressed bulk of mRNA expression level of sucrase-isomaltase (SI) at 0.125 mg/mL. Several flavan-3-ol monomers were also tested, and epicatechin gallate and epigallocatechin gallate were found to suppress α-glucosidase amount significantly.

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