Objective: We sought to determine the effect of bacteria on fluorescence polarization (FPOL) testing of amniotic fluid.

Methods: Fusobacterium necrophorum and Escherichia coli were inoculated at concentrations of 10(3) and 10(6)/ml in amniotic-fluid specimens from 4 patients with no clinical or laboratory evidence of infection. The FPOL results were obtained at inoculation and again at 24 h of incubation. The results were compared using analysis of variance (ANOVA).

Results: The FPOL results from inoculated specimens were all within 2% of the uninoculated controls. The specimens incubated with bacteria showed a < 1-19% variation when compared with the time-zero uninoculated controls. However, uninoculated controls incubated for 24 h exhibited a 2-12% variation when compared with the time-zero controls, suggesting that the variation present was not secondary to the bacterial co-incubation.

Conclusions: In vitro, neither bacterial inoculation nor prolonged co-incubation influences FPOL results beyond the effect of incubation alone. FPOL appears to be an appropriate test to assess fetal lung maturity in patients in whom intraamniotic infection is a concern.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2364429PMC
http://dx.doi.org/10.1155/S1064744995000408DOI Listing

Publication Analysis

Top Keywords

uninoculated controls
12
vitro bacterial
8
fluorescence polarization
8
lung maturity
8
variation compared
8
compared time-zero
8
fpol
5
bacterial contamination
4
contamination amniotic
4
amniotic fluid
4

Similar Publications

Premise: The ability of plants to adapt or acclimate to climate change is inherently linked to their interactions with symbiotic microbes, notably fungi. However, it is unclear whether fungal symbionts from different climates have different impacts on the outcome of plant-fungal interactions, especially under environmental stress.

Methods: We tested three provenances of fungal inoculum (originating from dry, moderate or wet environments) with one host plant genotype exposed to three soil moisture regimes (low, moderate and high).

View Article and Find Full Text PDF

The relative performance of rhizobial strains could depend on their resource allocation, environmental conditions, and host genotype. Here, we used a high-throughput shoot phenotyping to investigate the effects of Mesorhizobium strain on the growth dynamics, nodulation and bacteroid traits with four chickpea (Cicer arietinum) varieties grown under different water regimes in an experiment including four nitrogen sources (two Mesorhizobium strains, and two uninoculated controls: nitrogen fertilised and unfertilised) under well-watered and drought conditions. We asked three questions.

View Article and Find Full Text PDF

Effects of Nosema ceranae and Lotmaria passim infections on honey bee foraging behaviour and physiology.

Int J Parasitol

December 2024

Agriculture and Agri-Food Canada, Beaverlodge Research Farm, P.O. Box 29, Beaverlodge, Alberta, Canada T0H 0C0. Electronic address:

Nosema ceranae and Lotmaria passim are two commonly encountered digestive tract parasites of the adult honey bee (Apis mellifera L.). Although these parasites are associated with colony losses, little is known about how they affect individual bee physiology and behaviour at the colony level.

View Article and Find Full Text PDF

Diversity and functional traits based indigenous rhizosphere associated phosphate solubilizing bacteria for sustainable production of rice.

Front Microbiol

December 2024

Division of Soil and Environmental Biotechnology, National Institute for Biotechnology and Genetic Engineering College (NIBGE-C), Pakistan Institute of Engineering and Applied Sciences (PIEAS), Faisalabad, Pakistan.

Introduction: Rice, particularly Basmati rice, holds significant global importance as a staple food. The indiscriminate use of phosphate-based fertilizers during rice production has led to high residual levels of these chemicals in soil, impacting soil health and fertility. This study aimed to address this challenge by investigating the potential of phosphate solubilizing bacteria (PSB) in improving soil fertility and boosting the growth of Basmati rice.

View Article and Find Full Text PDF

Evaluation and identification of metabolites produced by in the interaction with plants and their effect on .

Curr Res Microb Sci

November 2024

Facultad de Agronomía y Veterinaria. Universidad Autónoma de San Luis Potosí. Soledad de Graciano Sánchez, SLP, CP, 78321. México.

Currently, the use of bio-inputs is increasing due to the need to reduce the use of agrochemicals. However, one of the limitations is to preserve the viability of the living microorganisms, so it is important to find an alternative that allows us to obtain different metabolites to produce it. We evaluated three different interactions (contact, diffusible and volatile compounds) in (At) seedlings with the strain M10 and its filtered secondary metabolites (M10F).

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!