Preterm infants, especially those that are exposed to prenatal intrauterine infection or inflammation, are at a major risk for adverse neurological outcomes, including cognitive, motor and behavioral disabilities. We have previously shown in a mouse model that there is an acute fetal brain insult associated with intrauterine inflammation. The objectives of this study were: 1) to elucidate long-term (into adolescence and adulthood) neurological outcomes by assessing neurobehavioral development, MRI, immunohistochemistry and flow cytometry of cells of immune origin and 2) to determine whether there are any sex-specific differences in brain development associated with intrauterine inflammation. Our results have shown that prenatal exposure appeared to lead to changes in MRI and behavior patterns throughout the neonatal period and during adulthood. Furthermore, we observed chronic brain inflammation in the offspring, with persistence of microglial activation and increased numbers of macrophages in the brain, ultimately resulting in neuronal loss. Moreover, our study highlights the sex-specific differences in long-term sequelae. This study, while extending the growing literature of adverse neurologic outcomes following exposure to inflammation during early development, presents novel findings in the context of intrauterine inflammation.
Intrauterine infection or inflammation in preterm neonates is a known risk for adverse neurological outcomes, including cognitive, motor and behavioral disabilities. Our previous data suggest that there is acute fetal brain inflammation in a mouse model of intrauterine exposure to lipopolysaccharides (LPS). We hypothesized that the in utero inflammation induced by LPS produces long-term EEG biomarkers of neurodegeneration in the exposed mice that could be determined by using continuous quantitative video-EEG-EMG analyses. A single LPS injection at E17 was performed in pregnant CD1 dams. Control dams were injected with same volumes of saline (LPS n=10, Control n=8). At postnatal age of P90-100, 24h synchronous video/EEG/EMG recordings were done using a tethered recording system and implanted subdural electrodes. Behavioral state scoring was performed blind to treatment group, on each 10 second EEG epochs using synchronous video, EMG and EEG trace signatures to generate individual hypnograms. Automated EEG power spectrums were analyzed for delta and theta-beta power ratios during wake vs. sleep cycles. Both control and LPS hypnograms showed an ultradian wake/sleep cycling. Since rodents are nocturnal animals, control mice showed the expected diurnal variation with significantly longer time spent in wake states during the dark cycle phase. In contrast, the LPS treated mice lost this circadian rhythm. Sleep microstructure also showed significant alteration in the LPS mice specifically during the dark cycle, caused by significantly longer average NREM cycle durations. No significance was found between treatment groups for the delta power data; however, significant activity dependent changes in theta-beta power ratios seen in controls were absent in the LPS-exposed mice. In conclusion, exposure to in utero inflammation in CD1 mice resulted in significantly altered sleep architecture as adults that were circadian cycle and activity state dependent.
Complete surgical eradication is considered the mainstay of treatment for endometriosis. The aim of the present study was to investigate patients' own assessment of whether their laparoscopic treatment made a difference to their quality of life, as well as to assess local recurrence rates. We performed a retrospective analysis of 49 women who had laparoscopic treatment for endometriosis at our unit between 1 January 2008 and 1 January 2010. Patients were sent the Short Form EHP-5 questionnaire and asked to score their quality of life in relation to endometriosis symptoms, prior to the surgery and up to 48 months afterwards. Subgroup analysis of stage I/II and stage III/IV disease was performed as well as stratification of the period post-operation into 12-24, 25-36 and 37-48 months for follow-up analysis. Overall, the patients reported improvement in quality of life scores with a significant drop in mean scores from 46.9 pre- to 27.5 post-surgery, signifying benefits from the surgical intervention. All subgroups reported improvement in quality of life scores. The overall symptom recurrence rate was 18.3%. We conclude that patients, post-laparoscopic treatment of endometriosis, experience significant improvement in their quality of life, regardless of stage and this can be quantified and qualified.
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