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The purpose of the study is to determine the frequency of UVB radiations necessary to maintain the Vitamin D level during winter time.
The work is addressing vitamin D production after UVB exposure and explore how much UVB radiation which is necessary to maintain a sufficient vitamin D level during the winter period in Denmark. 4 different UVB exposure times and 2 different UVB doses to 2 different body surface areas.
Allocation: Randomized, Control: Dose Comparison, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Basic Science
Vitamin D Status
Broadband UVB, Broadband UVB, Broadband UVB, Broadband UVB, Control group
Published on BioPortfolio: 2014-08-27T03:14:39-0400
In this exploratory study, we hope to learn if treatment of broadband light with infrared light can alter the molecular pathways associated with aging. Secondary exploratory objective is t...
The aim of this study is to evaluate the use of nasal broadband glasses HFNC (High Flow Nasal Cannula) in the initial management of severe bronchiolitis in infants admitted in ICU. Nasal ...
This examines in-vivo microwave sensing to measure a radio- frequency signal propagating through the wrist and, based on this information, establish a correlation of measured parameters wi...
Atopic dermatitis (AD) is a very common disorder that is characterized by pruritic inflammatory skin lesions, with patients usually having an individual or family history of atopic disease...
Merge the data of ultrasound with that of the anatomical and functional MRI is necessary since the high dose rate Curietherapy is carried out under ultrasound guidance. The investigators w...
Achieving broadband absorption has been a topic of intensive research over the last decade. However, the costly and time consuming stage of lithography has always been a barrier for the large-area and...
We report a 30 cm long Nd/Yb co-doped silica glass fiber amplifier with well-maintained broadband gain through simultaneous dual-laser pumping at 808 and 975 nm. By controlling the ratio of the pump...
Novel mechanisms for electromagnetic wave emission in the terahertz frequency regime emerging at the nanometer scale have recently attracted intense attention for the purpose of searching next-generat...
Second-harmonic generation (SHG) is always a significant frequency conversion process in nonlinear optics for many great applications but can be limited when broadband spectral laser sources are invol...
Broadband light (BBL) devices irradiate photons of different wavelength to induce photothermal reactions on various aging-related chromophores.
A family of phylloquinones that contains a ring of 2-methyl-1,4-naphthoquinone and an isoprenoid side chain. Members of this group of vitamin K 1 have only one double bond on the proximal isoprene unit. Rich sources of vitamin K 1 include green plants, algae, and photosynthetic bacteria. Vitamin K1 has antihemorrhagic and prothrombogenic activity.
A lipid cofactor that is required for normal blood clotting. Several forms of vitamin K have been identified: VITAMIN K 1 (phytomenadione) derived from plants, VITAMIN K 2 (menaquinone) from bacteria, and synthetic naphthoquinone provitamins, VITAMIN K 3 (menadione). Vitamin K 3 provitamins, after being alkylated in vivo, exhibit the antifibrinolytic activity of vitamin K. Green leafy vegetables, liver, cheese, butter, and egg yolk are good sources of vitamin K.
An isomer of glucose that has traditionally been considered to be a B vitamin although it has an uncertain status as a vitamin and a deficiency syndrome has not been identified in man. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1379) Inositol phospholipids are important in signal transduction.
A group of substances similar to VITAMIN K 1 which contains a ring of 2-methyl-1,4-naphthoquinione and an isoprenoid side chain of varying number of isoprene units. In vitamin K 2, each isoprene unit contains a double bond. They are produced by bacteria including the normal intestinal flora.
A nutritional condition produced by a deficiency of VITAMIN D in the diet, insufficient production of vitamin D in the skin, inadequate absorption of vitamin D from the diet, or abnormal conversion of vitamin D to its bioactive metabolites. It is manifested clinically as RICKETS in children and OSTEOMALACIA in adults. (From Cecil Textbook of Medicine, 19th ed, p1406)
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...