Comparison of Vitamin C Content of Commercially Available Fresh Fruits

Determining Vitamin D Status: A Comparison between Commercially Available Assays

BACKGROUND Vitamin D is not only important for bone health but can also affect the development of several non-bone diseases. The definition of vitamin D insufficiency by serum levels of 25-hydroxyvitamin D depends on the clinical outcome but might also be a consequence of analytical methods used for the definition. Although numerous 25-hydroxyvitamin D assays are available, their comparability ...

A comparison of the vitamin C content of fresh and frozen vegetables

This study, using vitamin C (ascorbic acid) as ‘marker’, allowed a direct comparison of the nutritional quality of fresh vegetables at various stages of distribution and storage, with the same vegetable commercially quick-frozen and stored deep frozen for up to 12 months. The nutrient status of frozen peas and broccoli was similar to that of the typical market-purchased vegetable and was superi...

Comparison of four commercially available cAMP kits.

In this study four commercially available cAMP kits were compared and shown to differ with respect to reliability, sensitivity, simplicity and expiration time. It is not possible to recommend a particular kit, because the choice depends on the demands of the investigator, which, of course, may vary. However, in our opinion, one of the kits was inferior to the others.

Determination of vitamin C in iranian citrus fruits

Comparison of dosimetry parameters of two commercially available Iodine brachytherapy seeds using Monte Carlo calculations

Background: Iodine brachytherapy sources with low photon energies have been widely used in treating cancerous tumors. Dosimetric parameters of brachytherapy sources should be determined according to AAPM TG-43U1 recommendations before clinical use. Monte Carlo codes are reliable tools in calculation of these parameters for brachytherapy sources. Materials and Methods: Dosimetric param...