Proteomic profiling of epididymis and vas deferens: identification of proteins regulated during rat genital tract development

Epididymis and vas deferens form part of the male internal genital tract and are dependent on androgens for their growth and development. To better understand the molecular action of androgens during male genital tract development, protein expression profiles were generated using two-dimensional gels, for rat epididymides and vasa deferentia isolated on embryonic days (E) 17-21. Proteins that were differentially expressed between E17 and E21 were cut from the gels, digested into tryptic peptides and analyzed on a matrix-assisted laser desorption/ionization time-of-flight mass spectrometer. Using this approach, 20 proteins could be identified that were regulated in time and were categorized into cytoskeletal proteins, nuclear proteins, transport proteins, chaperones, and enzymes (mainly glycolytic). Furthermore, epididymides and vasa deferentia isolated on E19 were cultured in vitro in the absence or presence of 10 nm of the synthetic androgen R1881, for 9, 24, and 48 h. Under these conditions, regulation and posttranslational modification were observed for glyceraldehyde 3-phosphate dehydrogenase, triosephosphate isomerase, heterogeneous nuclear ribonucleoprotein A2/B1 and heterogeneous nuclear ribonucleoprotein A3, similar to the observed changes in vivo. In addition, posttranslational modification of RhoGDI1 (also named RhoGDIalpha) was found in response to androgen. Androgen-induced posttranslational modification of RhoGDI1 and glycolytic enzymes may be an important functional link between signaling pathways and cytoskeletal rearrangements in control of growth and development of the male internal genital tract.     

Urinary incontinence in a Finnish population aged 70 and over. Prevalence of types, associated factors and self-reported treatments

OBJECTIVE: To describe the prevalence, associated factors and self-reported treatments of different types of incontinence in a random older population. DESIGN: A population-based cross-sectional survey. SETTING: Third wave for the Tampere Longitudinal Study on Ageing (TamELSA) in 1999. SUBJECTS: 171 men and 227 women aged 70 and over. MAIN OUTCOME MEASURES: Urge and mixed incontinence combined and associated health and social indicators. RESULTS: The prevalence of stress, urge and mixed incontinence was 2%, 17% and 6%, respectively, in men and 23%, 6% and 30%, respectively, in women. In the logistic regression analyses adjusted for age, urge and mixed incontinence in women were associated with living in an institution (OR [odds ratiol 13.55), comorbidity (OR 1.94), ADL (activities of daily living) disability (OR 3.55), depressive mood (OR 2.49) and fecal incontinence (OR 7.84), while in men an association was found between urge and mixed incontinence and ADL disability (OR 2.59) and depressive mood (OR 2.69). All the men living in an institution were incontinent of urine. Of the incontinent women, 46% used diapers, but collecting devices were rare in men. CONCLUSION: The results emphasise the significance and multifactorial nature of the urge component in geriatric incontinence, which should be considered in both geriatric and general practice.     

Effects of bacterial toxins on air-exposed cultured human respiratory sinus epithelium

The present study was designed to investigate the effects of the bacterial toxins lipopolysaccharide (LPS) and lipoteichoic acid (LTA) on air-exposed cultured human respiratory sinus epithelium. The morphological changes, proliferation, and differentiation of sphenoid sinus mucosa were examined after incubation with different LPS or LTA concentrations. Air-exposed cultured sinus mucosa differentiated from pseudostratified respiratory epithelium to squamous ciliated epithelium with few goblet cells. High concentrations of bacterial toxins induced a significant increase in mucus production and a decrease in ciliated cells. Ki67 immunostaining showed an increased cell proliferation after incubation with moderate levels of LPS or LTA. High concentrations of bacterial toxins, on the other hand, induced a decreased proliferation. Involucrin expression was clearly altered by incubation with high levels of bacterial toxins, indicating an increased degree of terminal differentiation. These results indicate that the bacterial toxins LPS and LTA both induce comparable dose-dependent morphological changes in sinus epithelium.     

Adenoma growth stimulation by the trans-10, cis-12 isomer of conjugated linoleic acid (CLA) is associated with changes in mucosal NF-kappaB and cyclin D1 protein levels in the Min mouse

Conjugated linoleic acid (CLA) is a term used to describe the different conjugated isomers of linoleic acid. CLA has been found to be anticarcinogenic in mammary cancer, but its effects on colon carcinogenesis are still inconclusive. In this study, the isomer-specific effects of the cis-9, trans-11 and trans-10, cis-12 CLA isomers were investigated in the Min mouse model for intestinal carcinogenesis. The Min mice (n = 10/group) were fed either an AIN-93G control diet or a diet containing 1 g/100 g cis-9, trans-11 or trans-10, cis-12 CLA for 8 wk. The number and size of adenomas were measured and the proteins from the small intestinal tissues extracted for immunoblotting analysis. The number of adenomas did not differ, but the size of the adenomas was greater in the distal part of the small intestine in mice fed the trans-10, cis-12 isomer than in controls (1.19 +/- 0.16 vs. 0.94 +/- 0.21 mm, mean +/- SD, P < 0.01). The same isomer caused an increase in lipid peroxidation, measured as urinary 8-iso-prostaglandin (PG)F(2alpha). Nuclear p65 protein of the mucosal tissue was not detectable in the trans-10, cis-12 group, which differed (P < 0.05) from the control group. Cyclin D1, a target for the nuclear factor (NF)-kappaB pathway, was elevated in the trans-10, cis-12 group compared with the control group (P < 0.01), but cyclooxygenase-2 levels were not higher. There was no difference in beta-catenin protein levels between the groups. The results indicate that the trans-10, cis-12 isomer of CLA can act as a cancer promoter in colon carcinogenesis possibly through pathways affecting NF-kappaB and cyclin D1.     

Do asthma patients receive sufficient information to monitor their disease − a nationwide survey in Finland

International Journal of Clinical Pharmacy - Objectives: The aim of this study was to assess to what extent the principles of asthma monitoring are implemented among Finnish asthma patients and if...     

Nonlinear relationship between emotional valence and brain activity: Evidence of separate negative and positive valence dimensions

Emotion plays a significant role in goal‐directed behavior, yet its neural basis is yet poorly understood. In several psychological models the cardinal dimensions that characterize the emotion space are considered to be valence and arousal. Here 3T functional magnetic resonance imaging (fMRI) was used to reveal brain areas that show valence‐ and arousal‐dependent blood oxygen level dependent (BOLD) signal responses. Seventeen healthy adults viewed pictures from the International Affective Picture System (IAPS) for brief 100 ms periods in a block design paradigm. In many brain regions BOLD signals correlated significantly positively with valence ratings of unpleasant pictures. Interestingly, partly in the same regions but also in several other regions BOLD signals correlated negatively with valence ratings of pleasant pictures. Therefore, there were several areas where the correlation across all pictures was of inverted U‐shape. Such correlations were found bilaterally in the dorsolateral prefrontal cortex (DLPFC), dorsomedial prefrontal cortex (DMPFC) extending to anterior cingulate cortex (ACC), and insula. Self‐rated arousal of those pictures which were evaluated to be unpleasant correlated with BOLD signal in the ACC, whereas for pleasant pictures arousal correlated positively with the BOLD signal strength in the right substantia innominata. We interpret our results to suggest a major division of brain mechanisms underlying affective behavior to those evaluating stimuli to be pleasant or unpleasant. This is consistent with the basic division of behavior to approach and withdrawal, where differentiation of hostile and hospitable stimuli is crucial. Hum Brain Mapp, 2010. © 2009 Wiley‐Liss, Inc.     

Effects of a community intervention to reduce the serving of alcohol to intoxicated patrons

Aims To assess the effects of an alcohol prevention programme to reduce the serving of alcoholic beverages to intoxicated clients on licensed premises. Research design A controlled pre‐ (2004) and post‐intervention study (2006) design. Intervention A community‐based programme combining law enforcement, responsible beverage service training, information campaigns and policy initiatives in one Finnish town (Jyväskylä). Participants and measurements A male actor pretended to be clearly under the influence of alcohol and tried to buy a pint of beer at licensed premises. For the baseline measurement, every bar and nightclub was visited in the intervention and the control areas (94 licensed premises in total). Post‐intervention data were gathered with the same principles (100 licensed premises in total). A researcher observed every visit and documented the results. Results In the post‐intervention study there was a statistically significant increase in refusals to serve denials alcohol to the actor in the intervention area (from 23% to 42% of the licensed premises) compared to refusals in the control area (from 36% to 27% of the licensed premises). Conclusion Previous research has documented that multi‐component community‐based interventions can have a significant impact on over‐serving of alcohol when training and house policies are combined with effective law enforcement. The present findings also demonstrate that comprehensive Responsible Beverage Service (RBS) interventions applied at a local community level can be effective in decreasing service to intoxicated clients in a Nordic context.     

Erector spinae SEMG activity during forward flexion and re-extension in ankylosing spondylitis patients

Objective: To compare erector spinae muscle (ESM) activity as measured by surface electromyography (SEMG) in lumbar flexion from the upright position in men with ankylosing spondylitis (AS) and healthy males, and to study associations between pain, lumbar mobility and ESM activity. Methods: Surface EMG was undertaken at the L1-2 and L4-5 levels in 11 men with AS taking part in a rehabilitation course at the Rheumatism Foundation Hospital, and in 10 pain-free male controls, while the subjects were bending forward. Results: During full flexion ESM SEMG activity was significantly greater in patients with AS than in the controls. Relaxation was evident during flexion in all of the controls but in only some patients with AS. Lumbar mobility correlated negatively with ESM activities. No relationship between pain and ESM activity was evident. Some AS patients reported pain while ESM activity was being measured. Conclusion: Decreased lumbar mobility rather than pain explains ESM activity during full flexion in patients with AS.     

Identifying the barriers to conducting outcomes research in integrative health care clinic settings - a qualitative study

Background  

Integrative health care (IHC) is an interdisciplinary blending of conventional medicine and complementary and alternative medicine (CAM) with the purpose of enhancing patients' health. In 2006, we designed a study to assess outcomes that are relevant to people using such care. However, we faced major challenges in conducting this study and hypothesized that this might be due to the lack of a research climate in these clinics. To investigate these challenges, we initiated a further study in 2008, to explore the reasons why IHC clinics are not conducting outcomes research and to identify strategies for conducting successful in-house outcomes research programs. The results of the latter study are reported here.