Investigation of Biological Activity from Extracts of .

<b>Background and Objective:</b> <i>Ruellia tuberosa</i> is a common plant in the Mekong Delta and is widely used in many Vietnamese folk remedies. This study was conducted to investigate the potential use of roots, stems, leaves of <i>Ruellia tuberosa</i> as antioxidant, antimicrobial, α-amylase and α-glucosidase inhibitors. <b>Materials and Methods:</b> The extracts were tested for their ability to inhibit the enzymes α-amylase and α-glucosidase associated with diabetes.

Research on L. as a Pharmaceutical Treatment for Neurasthenia in Humans.

<b>Background and Objective:</b> This plant is known in many parts of the world and is used as medicine in some countries. In Vietnam, people know how to use <i>Passiflora foetida </i>L.,<i> </i>as an herb.

Two New α-Glucosidase Inhibitory Depsidones from the Lichen Parmotrema cristiferum (Taylor) Hale.

A bioactivity-guided investigation of the lichen Parmotrema cristiferum (Taylor) Hale (Parmeliaceae) led to the isolation of two new depsidones, cristifones A and B (1 and 2). The structures of the isolated compounds were identified by spectroscopic methods and comparison with the literature data. Compound 1 showed the initial combined structures of depsidone and depside cores.

The Potential of Ameliorating COVID-19 and Sequelae From via Bioinformatics.

The current coronavirus disease 2019 (COVID-19) outbreak is alarmingly escalating and raises challenges in finding efficient compounds for treatment. Repurposing phytochemicals in herbs is an ideal and economical approach for screening potential herbal components against COVID-19. , also known as Chuan Xin Lian, has traditionally been used as an anti-inflammatory and antibacterial herb for centuries and has recently been classified as a promising herbal remedy for adjuvant therapy in treating respiratory diseases.

Genetic Relationships of Some Samples of Ginger ( (Wild) Roscoe) as Medicinal Herbs in the Cuu Long River Delta, Vietnam.

<b>Background and Objective:</b> Ginger (<i>Zingiber officinale</i> (Wild). Roscoe) is a plant that has long been used as a medicinal herb for humans, so it has been grown and popularized in the Mekong Delta Provinces, but the research systematic genetics has not been given much attention. The current study evaluated the genetic characteristics of some ginger samples collected in eight provinces in the Mekong Delta based on morphological characteristics and ITS gene sequence regions.

Two new phenolic compounds from collected in Vietnam.

is a tropical plant that is widely used in Asian folk medicine. Little is known about the alpha-glucosidase inhibition and antimicrobial properties of compounds from this plant. In the present study, the phytochemical study of the aerial parts of collected in Vietnam was conducted using multiple chromatographic methods.

Genetic Study of Medicinal (L.) Merr. used in Mekong River, Southern Vietnam.

<b>Background and Objective:</b> <i>Sauropus androgynus</i> (L.) Merr., also known as coriander, is a shrub that grows wild in tropical Asia but is also cultivated as a vegetable in some countries.

Polysciosides J and K, two new oleanane-type triterpenoid saponins from the leaves of (L.) harms. cultivating in An Giang Province, Viet Nam.

For the first time, the phytochemical constituents of the leaves of (L.) Harms. cultivating in An Giang Province, Viet Nam were investigated and led to purify two new oleanane-type triterpenoid saponins, named polyscioside J () and polyscioside K () together with two known saponins, ladyginoside A () and chikusetsusaponin IVa () using variously chromatographic methods.