16 research outputs found

    Depression and Posttraumatic Stress Symptoms After Perinatal Loss in a Population-Based Sample

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    Introduction: Perinatal loss is often a traumatic outcome for families. While there are limited data about depressive outcomes in small populations, information about depression and posttraumatic stress disorder among large racially and economically diverse populations is sparse. Methods: We collaborated with the Michigan Department of Community Health to conduct a longitudinal survey of bereaved mothers with stillbirth or infant death under 28 days of life and live-birth (control) mothers in Michigan. The study assessed 9-month mental health outcomes including self-reported symptoms of depression and posttraumatic stress disorder along with information about demographics, pregnancy and loss experience, social support, and past and present mental health and treatment. Results: Of 1400 women contacted by the State of Michigan, 609 completed surveys and were eligible to participate for a 44% response rate (377 bereaved mothers and 232 control mothers with live births). In multivariable analysis, bereaved women had nearly 4-fold higher odds of having a positive screen for depression and 7-fold higher odds of a positive screen for post-traumatic stress disorder after controlling for demographic and personal risk variables. A minority of screen-positive women were receiving any type of psychiatric treatment. Conclusion: This is the largest epidemiologically based study to date to measure the psychological impact of perinatal loss. Nine months after a loss, bereaved women showed high levels of distress with limited rates of treatment. Symptoms need to be monitored over time for persisting disorder and further research should identify women at highest risk for poor outcomes.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140137/1/jwh.2015.5284.pd

    Dose escalation of a curcuminoid formulation

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    BACKGROUND: Curcumin is the major yellow pigment extracted from turmeric, a commonly-used spice in India and Southeast Asia that has broad anticarcinogenic and cancer chemopreventive potential. However, few systematic studies of curcumin's pharmacology and toxicology in humans have been performed. METHODS: A dose escalation study was conducted to determine the maximum tolerated dose and safety of a single dose of standardized powder extract, uniformly milled curcumin (C(3 )Complex™, Sabinsa Corporation). Healthy volunteers were administered escalating doses from 500 to 12,000 mg. RESULTS: Seven of twenty-four subjects (30%) experienced only minimal toxicity that did not appear to be dose-related. No curcumin was detected in the serum of subjects administered 500, 1,000, 2,000, 4,000, 6,000 or 8,000 mg. Low levels of curcumin were detected in two subjects administered 10,000 or 12,000 mg. CONCLUSION: The tolerance of curcumin in high single oral doses appears to be excellent. Given that achieving systemic bioavailability of curcumin or its metabolites may not be essential for colorectal cancer chemoprevention, these findings warrant further investigation for its utility as a long-term chemopreventive agent

    The Alaska Arctic Vegetation Archive (AVA-AK)

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    The Alaska Arctic Vegetation Archive (AVA-AK, GIVD-ID: NA-US-014) is a free, publically available database archive of vegetation-plot data from the Arctic tundra region of northern Alaska. The archive currently contains 24 datasets with 3,026 non-overlapping plots. Of these, 74% have geolocation data with 25-m or better precision. Species cover data and header data are stored in a Turboveg database. A standardized Pan Arctic Species List provides a consistent nomenclature for vascular plants, bryophytes, and lichens in the archive. A web-based online Alaska Arctic Geoecological Atlas (AGA-AK) allows viewing and downloading the species data in a variety of formats, and provides access to a wide variety of ancillary data. We conducted a preliminary cluster analysis of the first 16 datasets (1,613 plots) to examine how the spectrum of derived clusters is related to the suite of datasets, habitat types, and environmental gradients. Here, we present the contents of the archive, assess its strengths and weaknesses, and provide three supplementary files that include the data dictionary, a list of habitat types, an overview of the datasets, and details of the cluster analysis

    Restricting Dosage Compensation Complex Binding to the X Chromosomes by H2A.Z/HTZ-1

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    Dosage compensation ensures similar levels of X-linked gene products in males (XY or XO) and females (XX), despite their different numbers of X chromosomes. In mammals, flies, and worms, dosage compensation is mediated by a specialized machinery that localizes to one or both of the X chromosomes in one sex resulting in a change in gene expression from the affected X chromosome(s). In mammals and flies, dosage compensation is associated with specific histone posttranslational modifications and replacement with variant histones. Until now, no specific histone modifications or histone variants have been implicated in Caenorhabditis elegans dosage compensation. Taking a candidate approach, we have looked at specific histone modifications and variants on the C. elegans dosage compensated X chromosomes. Using RNAi-based assays, we show that reducing levels of the histone H2A variant, H2A.Z (HTZ-1 in C. elegans), leads to partial disruption of dosage compensation. By immunofluorescence, we have observed that HTZ-1 is under-represented on the dosage compensated X chromosomes, but not on the non-dosage compensated male X chromosome. We find that reduction of HTZ-1 levels by RNA interference (RNAi) and mutation results in only a very modest change in dosage compensation complex protein levels. However, in these animals, the X chromosome–specific localization of the complex is partially disrupted, with some nuclei displaying DCC localization beyond the X chromosome territory. We propose a model in which HTZ-1, directly or indirectly, serves to restrict the dosage compensation complex to the X chromosome by acting as or regulating the activity of an autosomal repellant

    Assessment of â freshâ versus â maceratedâ as accurate markers of time since intrauterine fetal demise in lowâ income countries

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    ObjectiveTo compare provider assessment of fetal maceration with deathâ toâ delivery interval to evaluate the reliability of appearance as a proxy for time of death.MethodsCohort chart abstraction was performed for all stillbirth deliveries at or above 28 weeks of gestation during a 1â year period in a teaching hospital in Ghana.ResultsOf 470 stillborn infants, 337 had adequate data for analysis. Of 47 fetuses alive on admission with deathâ toâ delivery intervals estimated to be less than 8 hours (expected to be reported as fresh), 14 (30%) were actually reported as macerated. Of 94 cases in which the fetus was deceased on admission with deathâ toâ delivery interval of more than 8 hours (expected to be macerated), 17 (18%) were described as fresh.ConclusionProvider description of fetal appearance may be an unreliable indicator for time since fetal death. The findings have significant implications for stillbirth prevention and assessment.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135680/1/ijgo223.pd
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