Frailty and Falls in People Living With Multiple Sclerosis.

Objective: To explore the association between frailty and history of falls in people living with multiple sclerosis (MS).

Design: Secondary analysis.

Setting: University research laboratories in the United States and Israel.

Performance of the CRAFTi portable fluorometer comparing with the HPLC method for determining serum retinol.

Objective: To determine the performance of a portable fluorometer for measuring serum retinol (SR) concentration.

Design And Methods: Serum samples were obtained from 75 factory worker women and 143 school children. SR concentration was quantified using a portable fluorometer ('CRAFTi') and HPLC analysis.

Combined measurement of ferritin, soluble transferrin receptor, retinol binding protein, and C-reactive protein by an inexpensive, sensitive, and simple sandwich enzyme-linked immunosorbent assay technique.

The measurement of vitamin A (VA) and iron status is very important in the assessment of nutritional deficiencies. The objective of this research was to develop a sandwich ELISA technique for the simultaneous measurement of ferritin, soluble transferrin receptor, retinol binding protein, and C-reactive protein (CRP) as indicators for VA and iron status. The inclusion of CRP as marker of infection allows for more accurate interpretation of VA and iron status.