Publications by authors named "J Popko"
Vitamin K Insufficiency in the Indian Population: Pilot Observational Epidemiology Study.
JMIR Public Health Surveill
February 2022
Background: The fat-soluble K vitamins K1 and K2 play an essential role in the blood coagulation cascade and are made available predominantly through selective dietary intakes. They are less known for their nonessential roles in a family of vitamin K-dependent proteins that promote various functions of organs and systems in the body. A lack of vitamin K can characterize vitamin and nutritional element insufficiency, which is different from a clinically apparent vitamin deficiency.
View Article and Find Full Text PDFDollar spot, caused by Sclerotinia homoeocarpa, is one of the most significant diseases of cool-season turfgrass on golf courses. Resistance to the benzimidazole, dicarboximide, and succinate dehydrogenase inhibitor (SDHI) classes and reduced sensitivity to the sterol-demethylation inhibitor (DMI) in S. homoeocarpa populations have been widely reported in the United States.
View Article and Find Full Text PDFSclerotinia homoeocarpa isolates were collected from golf courses in Japan and the United States (2016-2017). Japan isolates were collected during a monitoring study and the U.S.
View Article and Find Full Text PDFObjective: In the past decades, an increased interest in the roles of vitamin D and K has become evident, in particular in relation to bone health and prevention of bone fractures. The aim of the current study was to evaluate vitamin D and K status in children with low-energy fractures and in children without fractures.
Methods: The study group of 20 children (14 boys, 6 girls) aged 5 to 15 years old, with radiologically confirmed low-energy fractures was compared with the control group of 19 healthy children (9 boys, 10 girls), aged 7 to 17 years old, without fractures.
Article Synopsis
- Microalgae have potential for producing biofuels and valuable compounds, but challenges like low product yield hinder commercial production.
- Researchers enhanced triacylglycerol (TAG) accumulation in a diatom strain by expressing a yeast acyltransferase and a plant oleosin protein.
- The co-expression led to a 3.6-fold increase in TAG content, and more lipid droplets were observed, especially under nitrogen stress, while fatty acid composition stayed unchanged.