Biotechnol Appl Biochem
June 2023
Spinosad, a combination of spinosyn A and D produced by Saccharopolyspora spinosa, is a highly efficient pesticide. There has been a considerable interest in the improvement of spinosad production because of a low yield achieved by wild-type S. spinosa.
View Article and Find Full Text PDFThe Hoang Lien Range in northwest Vietnam is known to harbour five species of Leptobrachella, a specious genus of terrestrial frogs. We collected specimens of Leptobrachella from Mount Pu Ta Leng on the second highest peak in the Hoang Lien Range and use morphological and molecular data to show that this population represents a previously undescribed species which we name Leptobrachella graminicola sp. nov.
View Article and Find Full Text PDFAppl Microbiol Biotechnol
June 2021
Streptomyces sp. KCTC 0041BP, which was isolated from a soil sample in Cheolwon, Republic of Korea, is a dihydrochalcomycin producer. In this study, we obtained the genome of S.
View Article and Find Full Text PDFproduces doxorubicin and daunorubicin, which are important anticancer drugs. In this study, we activate peucemycin, a new antibacterial compound, using an OSMAC strategy. In general, bioactive compounds are produced in a higher amount at room temperature; however, in this study, we have demonstrated that a bioactive novel compound was successfully activated at a low temperature (18 °C) in DM07.
View Article and Find Full Text PDFFrogs in the genus Megophrys are an Asian radiation of stream-breeding frogs. The tadpoles of many Megophrys species are undescribed; those that are described are often dubiously allocated to species by association with post metamorphic specimens at collection sites and without supportive molecular data. We provide detailed descriptions of the larvae of five species of Megophrys from the Hoang Lien Range in northwest Vietnam: Megophrys fansipanensis, M.
View Article and Find Full Text PDFWe describe the tadpole of the Botsford's leaf-litter frog Leptobrachella botsfordi, a species endemic to Mount Fansipan in northwest Vietnam, for the first time. Tadpoles of this species were found in steep, fast-flowing streams at elevations between 2500-2600 m asl. We also report a previously unknown locality for this species on Mount Fansipan, which increases the species' known Extent of Occurrence from 8 km2 to 36 km2.
View Article and Find Full Text PDFThis is the first study in the Asia-Pacific region to examine the criterion validity of the self-reported International Physical Activity Questionnaire-Short form (IPAQ-SF) using accelerometers, in terms of achieving the World Health Organization's (WHO) recommended physical activity guidelines for health benefits. Vietnamese adults aged 40-65 years ( = 240) wore an ActiGraph GT3X accelerometer for at least 5 days and completed the Vietnamese version of the IPAQ-SF. Correlations between IPAQ-SF and accelerometer-measured physical activity intensities varied from .
View Article and Find Full Text PDFspp. are prolific sources of valuable natural products (NPs) that are of great interest in pharmaceutical industries such as antibiotics, anticancer chemotherapeutics, immunosuppressants, etc. Approximately two-thirds of all known antibiotics are produced by actinomycetes, most predominantly by .
View Article and Find Full Text PDFStreptomyces sp. VN1 was isolated from the coastal region of Phu Yen Province (central Viet Nam). Morphological, physiological, and whole genome phylogenetic analyses suggested that strain Streptomyces sp.
View Article and Find Full Text PDFAppl Microbiol Biotechnol
January 2020
Zincphyrin IV is a potential organic photosensitizer which is of significant interest for applications in biomedicine, materials science, agriculture (as insecticide), and chemistry. Most studies on Zincphyrin are focused on Zincphyrin III while biosynthesis and application of Zincphyrin IV is comparatively less explored. In this study, we explored Zincphyrin IV production in Streptomyces venezuelae ATCC 15439 through combination of morphology engineering and "One strain many compounds" approach.
View Article and Find Full Text PDFJ Prev Med Public Health
March 2019
Objectives: To objectively determine and compare the physical activity (PA) levels of adults newly diagnosed with type 2 diabetes (T2D) and adults without T2D in Vietnam using an accelerometer.
Methods: A total of 120 participants with newly diagnosed T2D and 120 adults without T2D were recruited from a large hospital in Hanoi, the capital city of Vietnam. All participants wore an ActiGraph GT3X accelerometer for at least 5 days, including 1 weekend day.
Megophrys are a group of morphologically conserved, primarily forest-dependent frogs known to harbour cryptic species diversity. In this study, we examined populations of small-sized Megophrys from mid- and high elevation locations in the Hoang Lien Range, northern Vietnam. On the basis of morphological, molecular and bioacoustic data, individuals of these populations differed from all species of Megophrys known from mainland Southeast Asia north of the Isthmus of Kra and from neighbouring provinces in China.
View Article and Find Full Text PDFAsia Pac J Clin Nutr
September 2019
Background And Objectives: The association between tea consumption and type 2 diabetes risk remains inconsistent in Asian populations. This case-control study investigated the association between habitual tea consumption and the risk of type 2 diabetes among Vietnamese adults.
Methods And Study Design: A hospital-based case-control study was conducted during 2013-2015 in Vietnam.
The Asian frog genus Megophrys is a diverse group of morphologically conserved, forest-dwelling frogs. The genus harbours highly localised species diversification and new species continue to be described on a regular basis. We examined the taxonomic status of a population of Megophrys frogs from the Hoang Lien Range in northern Vietnam and southern China previously identified as M.
View Article and Find Full Text PDFLancet Diabetes Endocrinol
December 2015