Comparison of Oral Iron Supplement Formulations for Normalization of Iron Status Following Roux-EN-y Gastric Bypass Surgery: a Randomized Trial.

Background: The evidence behind recommendations for treatment of iron deficiency (ID) following roux-en-y gastric bypass surgery (RYGB) lacks high quality studies.

Setting: Academic, United States OBJECTIVE: The objective of the study is to compare the effectiveness of oral iron supplementation using non-heme versus heme iron for treatment of iron deficiency in RYGB patients.

Methods: In a randomized, single-blind study, women post-RYGB and iron deficient received non-heme iron (FeSO, 195 mg/day) or heme iron (heme-iron-polypeptide, HIP, 31.

Influence of diet and supplements on iron status after gastric bypass surgery.

Background: Iron deficiency is common after Roux-en-Y gastric bypass (RYGB) surgery, but there is no consensus on the optimal diet quality and quantity for restoring and preserving iron status.

Objectives: The authors explored the impact of dietary and supplemental sources of iron and absorptive factors on iron status.

Setting: Academic, United States.

Effect of long term exposure to 0.5 T static magnetic fields on growth and size of GH3 cells.

Brief exposure to moderate intensity static magnetic fields has been shown to produce a transient alteration in physiological function in a variety of biological systems, primarily those related to changes in intracellular Ca(2+). In the present study GH3 cells were cultured during continuous exposure to a 0.5 T field, for periods of up to 5 weeks.

Effect of a 0.5-T static magnetic field on conduction in guinea pig spinal cord.

Compound-evoked potentials were recorded from excised adult guinea pig spinal cords before, during, and following exposure to a 0.5-T static magnetic field (SMF). There was no change in response latency during exposure but there was a small, statistically significant, decrease in amplitude.

Mechanism of action of moderate-intensity static magnetic fields on biological systems.

There is substantial evidence indicating that moderate-intensity static magnetic fields (SMF) are capable of influencing a number of biological systems, particularly those whose function is closely linked to the properties of membrane channels. Most of the reported moderate SMF effects may be explained on the basis of alterations in membrane calcium ion flux. The mechanism suggested to explain these effects is based on the diamagnetic anisitropic properties of membrane phospholipids.

Effect of a 125 mT static magnetic field on the kinetics of voltage activated Na+ channels in GH3 cells.

Voltage activated Na(+) channels were examined in GH3 cells, using the whole cell patch clamp method. Channel currents were recorded before, during, and after a 150 s exposure to a 125 mT static magnetic field. There was a slight shift in the current-voltage relationship and a less than 5% reduction in peak current during magnetic field exposure.