STUDY OBJECTIVE To investigate safety issues associated with the reuse of sterilized endotracheal tubes (ETTs). DESIGN Prospective, randomized study. SETTING Laboratory in vivo testing. INTERVENTION Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa were inoculated onto ETT cuffs. Following inoculation, ETTs were sterilized with either ethylene oxide or glutaraldehyde. Cu...

The widespread environmental contamination of chlorpyrifos (CP) has raised human health concerns and necessitated cost-effective methods for its remediation. current study evaluated the degradation behavior CP in compost biochar amended unamended (original sterilized) soils an incubation trial. Two levels (100 200 mg kg?1), (0.50%) were applied, soil was collected at different time intervals. A...

Sterilized soils are commonly used for the study of xenobiotic sorption and as an abiotic control in biodegradation experiments. They are also used for the chemical study of nitrogen and carbon cycle processes and the elimination of the biological factors. In this research the effects of different soil sterilization methods such as autoclaving, fumigating and exposure to ultraviolet and microwa...

Natural and synthetic steroidal hormones can be carried to agricultural soil through fertilization with municipal biosolids, livestock manure, or poultry manure. The persistence and pathways of dissipation of [4-(14)C]-testosterone and of [4-(14)C]-17beta-estradiol in organic-amended soils were investigated using laboratory microcosms. Testosterone dissipation was investigated over a range of a...

BACKGROUND Peritoneal dialysis fluids (PDFs) have been shown to alter mesothelial cell functions. To further determine the mechanisms involved, we investigated the effects of glucose, glucose degradation products (GDPs) and advanced glycation end products (AGEs) on the inhibition of human peritoneal mesothelial cell (HPMC) proliferation and the induction of apoptosis and oncosis. METHODS Four...

Clethra barbinervis Sieb. et Zucc. is a tree species that grows naturally at several mine sites and seems to be tolerant of high concentrations of heavy metals, such as Cu, Zn, and Pb. The purpose of this study is to clarify the mechanism(s) underlying this species' ability to tolerate the sites' severe heavy-metal pollution by considering C. barbinervis interaction with root fungal endophytes....

Axenic (germfree) and holoxenic (conventional) rats were given a pectincontaining diet (5 %1 or a pectin-free diet. The diet was not sterilized and the axenic state was maintained by the addition of antibiotics. Pectin modified little or not at all the quantity of bile acids in the small intestine, fecal bile acid excretion and fecal elimination of the sum of cholesterol and bile acids. It simi...

Generally, arbuscular mycorrhizal fungi (AMF) experiment is conducted utilizing sterilized soil. However, the sterilization method would be complicated or impossible to implement in field application. Therefore, this research aims investigate whether applying two species of AMF onto oil palm seedling growth planted non-sterilized soil still effective. The consists five treatments, including med...