2,579 research outputs found

    An Assessment Of The Utilization Of Geriatric Depression Screenings In Primary Care Providers

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    The purpose of this study was to determine the practices of primary care providers in relation to screening and treating geriatric depression. According to the Geriatric Mental Health Foundation (GMHF), depression and suicide are significant public health issues for older adults, noting that depression is one of the most common mental disorders experienced by elders. Research indicates the issue of geriatric depression is poorly approached by providers and patients do not receive appropriate care. Depression cannot be measured with lab or diagnostic tests; the only way to assess depression is to screen patients by asking questions. When screening for depression, understanding that follow-up with treatment is equally as important as the diagnosis is imperative. Currently, the United States Preventative Services Task Force (USPSTF) has very narrow guidelines that recommend screening for depression in the general adult population, with adequate systems in place to ensure accurate diagnosis, effective treatment, and appropriate follow-up. Permission to conduct the study was initially obtained from the Institutional Review Board at Mississippi University for Women. Providers were asked to complete a multi-question survey created by the researchers, indicating current depression screening practices, which was available on both Survey Monkey and on paper. Upon obtaining 100 surveys, 99 were included in data analysis and 97% of respondents identified as a nurse practitioner. Upon analysis of the statistical data, the research questions were reviewed and are as follows: 1) Do primary care providers perform depression screening on geriatric patients? 2) What barriers exist to performing depression screening on geriatric patients? 3) If geriatric patients are identified as at risk for depression, what interventions are being utilized by primary care providers to address this issue? The data indicated 40% of the surveyed providers reported screening every geriatric patient for depression, but the vast majority do not automatically screen geriatric patients for depression. Data also indicated barriers to screening every geriatric patient for depression included time constraints, patient declination, the screening being deemed unnecessary, or lack of reimbursement. Approximately one-third of providers admitted to not having time to screen patients for depression. Fifteen percent of providers identified the patient declining being screened as a barrier. Twelve percent of providers felt the screening was unnecessary, and researchers were unsure of the criteria utilized by the provider to deem depression screening unnecessary. The researchers determined in the third question what interventions were implemented by providers upon the patients having a score indicative of depression. The options available were medication(s), psychiatry, therapy, or multiple combinations of the three options. The research indicated no statistically significant pattern of treatment is being followed by providers, although medication alone or with other options was used by a majority of respondents. The researchers determined primary care practitioners are not adequately screening and treating geriatric depression

    Grandparents as Parents: Investigating the Health and Well-Being of Trauma-Exposed Families

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    An excerpt from the introduction: Over the past two decades, the number of grandparents serving as primary caregivers for their grandchildren has steadily increased. Nationally, 42% of all grandparents living with grandchildren function as the primary caregivers (U.S. Census, 2006). In the southern region of the country, this phenomenon is particularly salient, and expected to continue, with estimates that range from 7% to 15% higher than in 2000 (U.S. Census, 2004). Kentucky is no exception, with 67,394 children living with their grandparents, 58.8% of those grandchildren fall under the responsibility of their grandparents (American Community Survey, 2005). In fact, Region IV – which includes the state of Kentucky – has the greatest density of grandparents as head of household, many of whom are poor and of advancing age (U.S. Census, 2004). Projected demographic trajectories predict this trend will continue, necessitating the development of programs and services to address the unique needs of these modern day families

    Biofortification of Sodium Selenate Improves Dietary Mineral Contents and Antioxidant Capacity of Culinary Herb Microgreens

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    Selenium biofortification of plants has been suggested as a method of enhancing dietary seleniumintake to prevent deficiency and chronic disease in humans, while avoiding toxic levels of intake. Popular herbs such as basil (Ocimum basilicum L.), cilantro (Coriandrum sativum L.), and scallions (Allium fistulosum L.) present an opportunity for biofortification as these plants are used for added flavors to meals and are available as microgreens, young plants with increasing popularity in the consumer marketplace. In this study, basil, cilantro, and scallion microgreens were biofortified with sodium selenate under hydroponic conditions at various selenium concentrations to investigate the effects on yield, selenium content, other mineral contents (i.e., sodium, potassium, calcium, magnesium, phosphorus, copper, zinc, iron, manganese, sulfur, and boron), total phenol content, and antioxidant capacity [oxygen radical absorbance capacity (ORAC)]. The results showed that the selenium content increased significantly at all concentrations, with scallions demonstrating the largest increase. The effects on other minerals varied among herb species. Antioxidant capacity and total phenol content increased in all herbs at the highest selenium treatments, but basil and scallions demonstrated a decreased crop yield. Overall, these biofortified culinary herbmicrogreens are an ideal functional food for enhancing selenium, other dietary minerals, and antioxidants to benefit human health

    Micro-volume couette flow sample orientation for absorbance and fluorescence linear dichroism

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    Linear dichroism (LD) can be used to study the alignment of absorbing chromophores within long molecules. In particular, Couette flow LD has been used to good effect in probing ligand binding to DNA and to fibrous proteins. This technique has been previously limited by large sample requirements. Here we report the design and application of a new micro-volume Couette flow cell that significantly enhances the potential applications of flow LD spectroscopy by reducing the sample requirements for flow linear dichroism to 25 μL (with concentrations such that the absorbance maximum of the sample in a 1-cm pathlength cuvette is not, vert, similar1). The micro-volume Couette cell has also enabled the measurement of fluorescence-detected Couette flow linear dichroism. This new technique enables the orientation of fluorescent ligands to be probed even when their electronic transitions overlap with those of the macromolecule and conversely. The potential of flow-oriented fluorescence dichroism and application of the micro-volume Couette LD cell are illustrated by the collection of data for DNA with minor groove and intercalating ligands: DAPI, Hoechst, and ethidium bromide. As with conventional fluorescence, improved sensitivity compared with absorbance LD is to be expected after instrumentation optimization

    Direct and Legacy Effects of Long-Term Elevated CO2 on Fine Root Growth and Plant-Insect Interactions

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    Increasing atmospheric CO2 concentrations alter leaf physiology, with effects that cascade to communities and ecosystems. Yet, responses over cycles of disturbance and recovery are not well known, because most experiments span limited ecological time. We examined the effects of CO2 on root growth, herbivory and arthropod biodiversity in a woodland from 1996 to 2006, and the legacy of CO2 enrichment on these processes during the year after the CO2 treatment ceased. We used minirhizotrons to study root growth, leaf censuses to study herbivory and pitfall traps to determine the effects of elevated CO2 on arthropod biodiversity. Elevated CO2 increased fine root biomass, but decreased foliar nitrogen and herbivory on all plant species. Insect biodiversity was unchanged in elevated CO2. Legacy effects of elevated CO2 disappeared quickly as fine root growth, foliar nitrogen and herbivory levels recovered in the next growing season following the cessation of elevated CO2. Although the effects of elevated CO2 cascade through plants to herbivores, they do not reach other trophic levels, and biodiversity remains unchanged. The legacy of 10yr of elevated CO2 on plant-herbivore interactions in this system appear to be minimal, indicating that the effects of elevated CO2 may not accumulate over cycles of disturbance and recovery

    Duration of breastfeeding and risk of SIDS: an individual participant data meta-analysis

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    CONTEXT: Sudden infant death syndrome (SIDS) is a leading cause of postneonatal infant mortality. Our previous meta-analyses showed that any breastfeeding is protective against SIDS with exclusive breastfeeding conferring a stronger effect.The duration of breastfeeding required to confer a protective effect is unknown. OBJECTIVE: To assess the associations between breastfeeding duration and SIDS. DATA SOURCES: Individual-level data from 8 case-control studies. STUDY SELECTION: Case-control SIDS studies with breastfeeding data. DATA EXTRACTION: Breastfeeding variables, demographic factors, and other potential confounders were identified. Individual-study and pooled analyses were performed. RESULTS: A total of 2267 SIDS cases and 6837 control infants were included. In multivariable pooled analysis, breastfeeding for <2 months was not protective (adjusted odds ratio [aOR]: 0.91, 95% confidence interval [CI]: 0.68–1.22). Any breastfeeding ≥2 months was protective, with greater protection seen with increased duration (2–4 months: aOR: 0.60, 95% CI: 0.44–0.82; 4–6 months: aOR: 0.40, 95% CI: 0.26–0.63; and >6 months: aOR: 0.36, 95% CI: 0.22–0.61). Although exclusive breastfeeding for <2 months was not protective (aOR: 0.82, 95% CI: 0.59–1.14), longer periods were protective (2–4 months: aOR: 0.61, 95% CI: 0.42–0.87; 4–6 months: aOR: 0.46, 95% CI: 0.29–0.74). LIMITATIONS: The variables collected in each study varied slightly, limiting our ability to include all studies in the analysis and control for all confounders. CONCLUSIONS: Breastfeeding duration of at least 2 months was associated with half the risk of SIDS. Breastfeeding does not need to be exclusive to confer this protection

    Recreational marathon running does not cause exercise-induced left ventricular hypertrabeculation.

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    BACKGROUND: Marathon running in novices represents a natural experiment of short-term cardiovascular remodeling in response to running training. We examine whether this stimulus can produce exercise-induced left ventricular (LV) trabeculation. METHODS: Sixty-eight novice marathon runners aged 29.5 ± 3.2 years had indices of LV trabeculation measured by echocardiography and cardiac magnetic resonance imaging 6 months before and 2 weeks after the 2016 London Marathon race, in a prospective longitudinal study. RESULTS: After 17 weeks unsupervised marathon training, indices of LV trabeculation were essentially unchanged. Despite satisfactory inter-observer agreement in most methods of trabeculation measurement, criteria defining abnormally hypertrabeculated cases were discordant with each other. LV hypertrabeculation was a frequent finding in young, healthy individuals with no subject demonstrating clear evidence of a cardiomyopathy. CONCLUSION: Training for a first marathon does not induce LV trabeculation. It remains unclear whether prolonged, high-dose exercise can create de novo trabeculation or expose concealed trabeculation. Applying cut off values from published LV noncompaction cardiomyopathy criteria to young, healthy individuals risks over-diagnosis

    Maternal pregnancy vitamin D supplementation increases offspring bone formation in response to mechanical loading: Findings from the MAVIDOS trial

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    The Maternal Vitamin D Osteoporosis (MAVIDOS) trial reported higher total body bone mineral content in winter-born infants of mothers receiving vitamin D supplementation [1000 IU/day cholecalciferol] compared with placebo from 14 weeks gestation until delivery. This sub-study aimed to determine whether antenatal vitamin D supplementation altered postnatal bone formation in response to mechanical stimulation. Thirty-one children born to MAVIDOS participants randomised to either placebo (n=19) or cholecalciferol (n=12) were recruited at age 4-5 years. Children received whole body vibration (WBV) for 10 minutes on 5 consecutive days. Fasting blood samples for bone homeostasis, 25 hydroxyvitamin D (25OHD), parathyroid hormone (PTH), and bone turnover markers (Pro-collagen Type 1 N-terminal propeptide, P1NP; Cross-linked C-telopeptide of Type I Collagen, CTX) were collected pre-WBV and on day 8 (D8). Mean changes (D) in P1NP (ng/ml) between baseline and D8 in the vitamin-D intervention and placebo groups were 40.6 and -92.6 respectively and mean changes (Δ) in CTX (ng/ml) were 0.034 (intervention) and -0.084 (placebo) respectively. Between-group DP1NP difference was 133.2ng/ml [95% CI 0.4, 266.0; p=0.049] and ΔCTX 0.05ng/ml (95% CI -0.159, 0.26ng/mL; p=0.62). Antenatal vitamin-D supplementation resulted in increased P1NP in response to WBV, suggesting early life vitamin D supplementation increases the anabolic response of bone to mechanical loading in children

    Inspecting Species and Freshness of Fish Fillets Using Multimode Hyperspectral Imaging Techniques

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    This study developed multimode hyperspectral imaging techniques to detect substitution and mislabeling of fish fillets. Line-scan hyperspectral images were collected from fish fillets in four modes, including reflectance in visible and nearinfrared (VNIR) region, fluorescence by 365 nm UV excitation, reflectance in short-wave infrared (SWIR) region, and Raman by 785 nm laser excitation. Fish fillets of six species (i.e., red snapper, vermilion snapper, Malabar snapper, summer flounder, white bass, and tilapia) were used for species differentiation and frozen-thawed red snapper fillets were used for freshness evaluation. A total of 24 machine learning classifiers were used for fish species and freshness classifications using four types of spectral data in three different subsets (i.e., full spectra, first ten components of principal component analysis, and bands selected by a sequential feature selection method). The highest accuracies were achieved at 100% using full VNIR reflectance spectra for the species classification and 99.9% using full SWIR reflectance spectra for the freshness classification. The VNIR reflectance mode gave an overall best performance for both species and freshness inspection
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