Alpha-Glucosidase Inhibitory Diterpenes from Growing in Vietnam.

Bioactive-guided phytochemical investigation of L. growing in Vietnam led to the isolation of five -atisanes, one --atisane, and one lathyrane (ingol-type). The structures were elucidated as -131617-tetrahydroxyatisane (), ethyl -3,4--4,16,17-trihydroxyatisane-3-carboxylate (), -atisane-3-oxo-16,17-acetonide (), -3-acetoxy-16,17-dihydroxyatisane (), -16,17-dihydroxyatisane-3-one (), calliterpenone (), and ingol 12-acetate ().

Stereochemical Determination of Fistularins Isolated from the Marine Sponge and Their Regulatory Effect on Intestinal Inflammation.

By activity-guided fractionation based on inhibition of nitric oxide (NO) and prostaglandin E2 (PGE), six fistularin compounds (-) were isolated from the marine sponge (order Astrophorida). Based on stereochemical structure determination using Mosher's method, fistularin-3 was assigned as a new stereoisomer. On the basis of the stereochemistry of fistularin-3, the stereochemical homogeneity of all six compounds was established by comparing carbon and proton chemical shifts.

L. Plant: Bioactive Compounds and Potential as a Functional Food Ingredient.

L. () is a highly adaptable plant that is extensively incorporated in many traditional and Ayurveda medications. Various parts of the plant, such as leaves, fruits, and seeds, possess nutritional and medicinal value.

Chemical constituents of and and their cytotoxicity.

Two new rocaglamides, 8b--5-oxohexylrocaglaol () and elaeagnin (), together with twelve known compounds, were isolated from the bark of and the whole tree of . Their structures were determined using spectroscopic methods, mainly 1D and 2D NMR. Cytotoxic activity against HepG2 human liver cancer cells of the isolated compounds was evaluated using the SRB assay.

Tropical land-use change alters trait-based community assembly rules for dung beetles and birds.

Tropical rainforest disturbance and conversion are critical drivers of biodiversity loss. A key knowledge gap is understanding the impacts of habitat modification on mechanisms of community assembly, which are predicted to respond differently between taxa and across spatial scales. We use a null model approach to detect trait assembly of species at local- and landscape-scales, and then subdivide communities with different habitat associations and foraging guilds to investigate whether the detection of assembly mechanisms varies between groups.

Isoquinolinequinone Derivatives from a Marine Sponge ( sp.) Regulate Inflammation in In Vitro System of Intestine.

Using bio-guided fractionation and based on the inhibitory activities of nitric oxide (NO) and prostaglandin E2 (PGE2), eight isoquinolinequinone derivatives (-) were isolated from the marine sponge sp. Among these, methyl -demethylrenierate () is a noble ester, whereas compounds and are new -demethyl derivatives of known isoquinolinequinones. Compound was assigned as a new 21-dehydroxyrenieramycin F.

Evaluation of potential impacts on biodiversity of the salt-tolerant transgenic Eucalyptus camaldulensis harboring an RNA chaperonic RNA-Binding-Protein gene derived from common ice plant.

We recently reported that a genetic transformation of the RNA-Binding-Protein (McRBP), an RNA chaperone gene derived from common ice plant (Mesembryanthemum crystallinum), alleviated injury and loss of biomass production by salt stress in Eucalyptus camaldulensis in a semi-confined screen house trial. In this study, we assessed the potential environmental impact of the transgenic Eucalyptus in a manner complying with Japanese biosafety regulatory framework required for getting permission for experimental confined field trials. Two kinds of bioassays for the effects of allelopathic activity on the growth of other plants, i.

Characterization of the complete mitochondrial genome of the fork-tailed threadfin bream, (Spariformes, Nemipteridae) and phylogenetic analysis.

The complete mitochondrial genome of the fork-tailed threadfin bream, , which belongs to the family Nemipteridae was first determined. The complete mitochondrial genome was 16,882 bp in size and encoded of 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region. has a mitochondrial gene arrangement that is typical of vertebrates.

Complete mitochondrial genome of the orange-spotted trevally, (Perciformes, Carangidae) and a comparative analysis with other Carangidae species.

The complete mitochondrial genome of the orange-spotted trevally, , which belongs to the family Carangidae was determined. The complete mitochondrial genome has a length of 16,556 bp and consists of 13 protein-coding genes, 22 tRNA genes, two rRNA genes, and a control region. has a mitochondrial gene arrangement that is typical of vertebrates.

Characterization of the complete mitochondrial genome of the Butterfly whiptail, (Spariformes, Nemipteridae) and phylogenetic analysis.

The complete mitochondrial genome of which belongs to the family Nemipteridae was first determined. The complete mitochondrial genome was 16,836 bp in length with 37 genes, including 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region. Phylogenetic analysis using mitochondrial genomes of 11 related species revealed that formed a well-supported monophyletic group with the other Nemipteridae species.

Complete mitochondrial genome of the double-lined fusileer, (Perciformes, Caesionidae): mitogenome characterization and phylogenetic analysis.

The complete mitochondrial genome of the double-lined fusileer, , which belongs to the family Caesionidae was determined. The complete mitochondrial genome has a length of 16,504 bp and consists of 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region. has a mitochondrial gene arrangement that is typical of vertebrates.

Response of Lactobacillus plantarum VAL6 to challenges of pH and sodium chloride stresses.

To investigate the effect of environmental stresses on the exopolysaccharide biosynthesis, after 24 h of culture at 37 °C with pH 6.8 and without sodium chloride, Lactobacillus plantarum VAL6 was exposed to different stress conditions, including pH (pHs of 3 and 8) and high sodium chloride concentration treatments. The results found that Lactobacillus plantarum VAL6 exposed to stress at pH 3 for 3 h gives the highest exopolysaccharide yield (50.

Exopolysaccharide production by lactic acid bacteria: the manipulation of environmental stresses for industrial applications.

Exopolysaccharides (EPSs) are biological polymers secreted by microorganisms including Lactic acid bacteria (LAB) to cope with harsh environmental conditions. EPSs are one of the main components involved in the formation of extracellular biofilm matrix to protect microorganisms from adverse factors such as temperature, pH, antibiotics, host immune defenses, etc..

Optimization of the isolation procedure and culturing conditions for hepatic stellate cells obtained from mouse.

Liver fibrosis (LF) mortality rate is approximately 2 million per year. Irrespective of the etiology of LF, a key element in its development is the transition of hepatic stellate cells (HSCs) from a quiescent phenotype to a myofibroblast-like cell with the production of fibrotic proteins. It is necessary to define optimal isolation and culturing conditions for good HSCs yield and proper phenotype preservation for studying the activation of HSCs in vitro.

A new skink of the genus Scincella Mittleman, 1950 (Squamata: Scincidae) from southern Vietnam.

A new skink of the genus Scincella Mittleman, 1950, from Binh Phuoc Province, southern Vietnam is described based on morphological data, including hemipenial characters, and nucleotide sequences from COI. The following morphological characters diagnose Scincella baraensis sp. nov.

Estimation of nitrogen and phosphorus concentrations from water quality surrogates using machine learning in the Tri An Reservoir, Vietnam.

Surface water eutrophication due to excessive nutrients has become a major environmental problem around the world in the past few decades. Among these nutrients, nitrogen and phosphorus are two of the most important harmful cyanobacterial bloom (HCB) drivers. A reliable prediction of these parameters, therefore, is necessary for the management of rivers, lakes, and reservoirs.

Evaluation of stemness marker expression in bovine ovarian granulosa cells.

The objective of this study was to assess the stemness marker expressions (Oct4, Nanog, and Sox2) of granulosa cells (GCs) collected from bovine ovarian follicles and expansion. The single bovine ovarian follicles were isolated and categorized into 4 groups according to their diameter including group A (<2 mm), group B (2-3 mm), group C (3-4 mm), and group D (>4 mm). Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) and immunostaining were applied to evaluate the stemness marker expression of bovine GCs from ovarian follicles.

V.S.Dang (Malvaceae, Helicteroideae), a new species from southern Vietnam.

V.S.Dang, from Ham Thuan Bac District, Binh Thuan Province, Vietnam is described and illustrated.

Rickettsia colombianensi in ticks from reptiles in Córdoba, Colombia.

Background And Aim: Wildlife animals are reservoirs of a large number of microorganisms pathogenic to humans, and ticks could be responsible for the transmission of these pathogens. spp. are the most prevalent pathogens found in ticks.

First molecular examination of Vietnamese mudflat snails in the genus Naranjia Golding, Ponder & Byrne, 2007 (Gastropoda: Amphibolidae).

Maritime ecosystems in Vietnam such as mangroves and mud flats are characterized by high biodiversity. However, elements of its biodiversity remain unclear and highly threatened. In this context, the assessment of rare species is a starting point to develop effective strategies for the conservation of entire ecosystems.

Systematic revision of the genus Fleming, 1822 (Gastropoda, Euthyneura, Pulmonata, Onchidiidae).

The genus Fleming, 1822 includes all the onchidiid slugs with dorsal gills. Its taxonomy is revised for the first time based on a large collection of fresh material from the entire Indo-West Pacific, from South Africa to Hawaii. Nine species are supported by mitochondrial (COI and 16S) and nuclear (ITS2 and 28S) sequences as well as comparative anatomy.

A new endemic insular Bent-toed Gecko (Squamata: Gekkonidae: Cyrtodctylus) from Quang Nam Province, Central Vietnam.

A new species of insular Bent-toed Gecko, Cyrtodactylus culaochamensis sp. nov. of the C.

Essential Oils of Species from Vietnam: Chemical Compositions and Biological Activities.

Mosquito-borne diseases are a large problem in Vietnam as elsewhere. Due to environmental concerns regarding the use of synthetic insecticides as well as developing insecticidal resistance, there is a need for environmentally-benign alternative mosquito control agents. In addition, resistance of pathogenic microorganisms to antibiotics is an increasing problem.

, a new species of Gesneriaceae from Phu Quoc Island, South-western Vietnam.

A new species of Gesneriaceae, , is described and illustrated from Phu Quoc National Park, Kien Giang Province, South-western Vietnam. It is most similar to , and in having 3-verticillate petiolate leaves, morphologically similar calyx, corolla, stamens, pistil and fruit, but differs from all in the glandular-pubescent stems, petioles and leaf blades, 1(-2)-flowered cymes, longer corolla and fruit and longer and densely glandular-puberulent ovary. Data on distribution, ecology, phenology and provisional conservation assessment of the new species are given along with an illustration and a colour plate.