An Assessment of aluminum contamination in neonatal parenteral nutrition solutions based on measured versus labeled content.

Aluminum can potentially cause toxicity in pediatrics and neonates receiving parenteral nutrition. Some PN solutions and ingredients in Saudi Arabia do not comply with US FDA regulations regarding aluminum exposure. This study aims to determine the aluminum concentration in samples of PN solutions and ingredients used to feed infants in Saudi Arabia.

Ca-Sensitive Potassium Channels.

The Ca ion is used ubiquitously as an intracellular signaling molecule due to its high external and low internal concentration. Many Ca-sensing ion channel proteins have evolved to receive and propagate Ca signals. Among them are the Ca-activated potassium channels, a large family of potassium channels activated by rises in cytosolic calcium in response to Ca influx via Ca-permeable channels that open during the action potential or Ca release from the endoplasmic reticulum.

Vitamin D deficiency among subfertile women: case-control study.

Objective: The objective of the study is to compare the dietary vitamin D and calcium intake among subfertile women (cases) versus pregnant women (controls) and to determine the vitamin D levels in the subfertile and pregnant women. The study design was an observational case-control study where a total of 181 (83 previously diagnosed subfertile cases from various causes and 98 pregnant controls) women of reproductive age. A validated questionnaire was used where it focused on key indicators evaluating vitamin D-related factors.