The loss of bone during spaceflight is considered a physiological obstacle for the
exploration of other planets. This report of calcium metabolism before, during, and after long-duration …

Extended exposure to weightlessness results in bone loss. However, little information exists
as to the precise nature or time course of this bone loss. Bone resorption results in the …

Adequate nutrition is critical during long-term spaceflight, as is the ability to easily monitor
dietary intake. A comprehensive nutritional status assessment profile was designed for use …

Studies of calcium kinetics require administration of tracer doses of calcium and subsequent
repeated sampling of biological fluids. This study was designed to develop techniques that …

1. Hsu MM, Chou YY, Chang YC, Chou TC, Wong CS. An analysis of excitatory amino acids,
nitric oxide and prostaglandin E2 in the cerebrospinal fluid of pregnant women: the effect on …

Calcium loss from bones during space flight creates a risk for astronauts who travel into space,
and may prohibit space flights to other planets. The problem of calcium loss during space …

OBJECTIVE: Ambient-temperature storage of urine samples would increase the variety of life
sciences studies that could be performed during spaceflight. The purpose of this study was …

Weightlessness-induced bone loss must be counteracted to ensure crew health during
extendedduration space missions. Studies were conducted to assess two bone loss …

A safe, effective ambient temperature urine preservative, chlorhexidine/n-propyl gallate (CPG),
has been formulated for use during spacefli ght that reduces the effects of oxidation and …

Disclosed is CPG, a combination of a chlorhexidine salt (such as chlorhexidine digluconate,
chlorhexidine diacetate, or chlorhexidine dichloride) and n-propyl gallate that can be used at …