Search results for " Character"
showing 10 items of 1756 documents
An inhibitory sex pheromone tastes bitter for Drosophila males
2007
1932-6203 (Electronic) Journal Article; Sexual behavior requires animals to distinguish between the sexes and to respond appropriately to each of them. In Drosophila melanogaster, as in many insects, cuticular hydrocarbons are thought to be involved in sex recognition and in mating behavior, but there is no direct neuronal evidence of their pheromonal effect. Using behavioral and electrophysiological measures of responses to natural and synthetic compounds, we show that Z-7-tricosene, a Drosophila male cuticular hydrocarbon, acts as a sex pheromone and inhibits male-male courtship. These data provide the first direct demonstration that an insect cuticular hydrocarbon is detected as a sex ph…
Sexual differences in larval life history traits of acanthocephalan cystacanths
2006
Sexual differences in life history traits, such as size dimorphism, presumably arise via sexual selection and are most readily observed in adults. For complex life-cycle parasites, however, sexual selection may also have consequences for larval traits, e.g., growth in intermediate hosts. Two acanthocephalan species (Acanthocephalus lucii and Echinorhynchus borealis) were studied to determine, whether larval life histories differ between males and females. The size of female A. lucii cystacanths had a much stronger relationship with intermediate host size than males, suggesting females invest more in growth and are consequently more limited by resources. No relationship between host size and…
Validity of the Seattle Heart Failure Model after heart failure hospitalization.
2019
Abstract Aims Heart failure hospitalization is a sentinel event associated with increased mortality risk. Whether long‐term heart failure risk models such as the Seattle Heart Failure Model (SHFM) accurately assess risk in the post‐hospital setting is unknown. Methods and results The SHFM was applied to a cohort of 2242 consecutive patients (50% women; mean age 73) on discharge after acute heart failure hospitalization and analysed for the primary endpoint of all‐cause mortality. Model discrimination and calibration were assessed. Direct patient‐level comparison between our study cohort and the original SHFM cohorts was also performed to confirm and quantify the degree and extent of increas…
Day- and night-time contents of monoamines and their metabolites in the medial preoptic area of the rat hypothalamus.
1999
The present study was conducted to investigate whether monoamines and their metabolites in the medial preoptic area (mPOA) of the rat hypothalamus exhibit differences in their contents between day and night. We therefore sampled the mPOA from adult animals of either sex at the middle of the light or dark period, respectively, and analyzed the tissue by means of high performance liquid chromatography with electrochemical detection. We found that, in female animals at mid-night, dopamine and 3,4-dihydroxyphenyl acetic acid (DOPAC) was reduced to 43 and 30%, respectively, of daytime levels, while the norepinephrine content was doubled. No significant differences were observed in male animals. …
Analgesic use among community-dwelling people aged 75 years and older : a population-based interview study
2010
Abstract Background: Pain is often underrecognized and undertreated among older people. However, older people may be particularly susceptible to adverse drug reactions linked to prescription and nonprescription analgesics. Objectives: The aims of this study were to assess the prevalence of analgesic use among a random sample of community-dwelling people aged ≥75 years, and to investigate factors associated with daily and as-needed analgesic use. Methods: A random sample of people aged ≥75 years was drawn from the population register in Kuopio, Finland, in November 2003. Data on prescription and nonprescription analgesic use were elicited during nurse interviews conducted once for each parti…
Nutritional predictors of cognitive impairment severity in demented elderly patients: The key role of BMI
2012
Introduction: The body mass index (BMI) is commonly used to assess nutritional status and the Mini Mental State Examination (MMSE) is a validated tool for assessing cognitive status in elderly people. Nutritional and cognitive aspects are closely related in dementia. Objectives: To establish whether BMI predicts cognitive decline in demented patients and whether an "alarm" BMI cut-off exists for declining MMSE scores. Subjects and methods: 82 elderly demented patients underwent clinical, bio-chemical and functional assessment. Design: Transversal study. Results: The mean BMI was 26.08±4.48 kg/m 2 and the mean MMSE 18.68±5.38. Patients with BMI>25 kg/m2 had significantly lower MMSE scores…
Differentiation of benign and malignant lymph nodes in pediatric patients on ferumoxytol-enhanced PET/MRI.
2019
The composition of lymph nodes in pediatric patients is different from that in adults. Most notably, normal lymph nodes in children contain less macrophages. Therefore, previously described biodistributions of iron oxide nanoparticles in benign and malignant lymph nodes of adult patients may not apply to children. The purpose of our study was to evaluate if the iron supplement ferumoxytol improves the differentiation of benign and malignant lymph nodes in pediatric cancer patients on 18F-FDG PET/MRI. Methods: We conducted a prospective clinical trial from May 2015 to December 2018 to investigate the value of ferumoxytol nanoparticles for staging of children with cancer with 18F-FDG PET/MRI.…
Intimate Partner Violence and Mental Health Among Italian Adolescents: Gender Similarities and Differences
2013
Only a few studies have analyzed the health impact of intimate partner violence (IPV) on male and female adolescents, taking into account other kinds of violence that can affect their health. In this study, 43.7% of female adolescents and 34.8% of males reported IPV; females reported more psychological and sexual IPV, with no differences for physical IPV. Controlling for family and sexual violence and other confounding factors, female adolescents exposed to IPV had significantly higher adjusted odds ratios (AORs) for depression, panic attacks, eating problems, and suicidal ideation. For male adolescents, only the OR of eating problems almost reached statistical significance.
Low back and neck and shoulder pain in members and non-members of adolescents' sports clubs : the Finnish Health Promoting Sports Club (FHPSC) study
2016
Background The objective of this study was to investigate the prevalence of self-reported low back pain (LBP) and neck and shoulder pain (NSP), and the related factors in members and non-members of adolescents’ sports clubs. Methods This cross-sectional study was based on surveys of 14–16-year-olds as a part of the Finnish Health Promoting Sports Club (FHPSC) Study. The surveys on self-reported health behaviours, injuries, and musculoskeletal health were conducted among sports club members (n = 962) and non-members (n = 675). Binary logistic regression analysis was applied to study the associations between dependent variables of LBP and NSP, and the independent factors. Results The prevalen…
Validation of the psychosocial impact of dental aesthetics questionnaire (Pidaq) in Spanish adolescents
2012
Objectives: The purpose of this study was to assess the validity and reliability of the Spanish version of PIDAQ for application in adolescents. Study Design: The questionnaire was translated, cross-culturally adapted and completed by 627 adolescents (366 12-year-olds and 261 15-year-olds). The adolescents were also examined by 4 examiners who had been calibrated against a gold standard and relative to each other (Kappa >0.85) in determining treatment need with the Dental Aesthetic Index (DAI) and the Index of Orthodontic Treatment Need (IOTN) DHC and AC components. Results: Cronbach´s alpha of the translated PIDAQ was 0.90. The 23 items of the questionnaire were divided into four domains t…