60 research outputs found

    An exploration of the experiences of mothers who breastfeed long-term: What are the issues and why does it matter?

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    Background: The World Health Organization (WHO) promotes breastfeeding for 2 years and beyond. Despite this, only 25% of women in the United Kingdom are breastfeeding at all by 6 months postpartum, with a minority of women breastfeeding beyond the first year. Those who do often report feeling ridiculed or alienated in their choice. Here, the aim was to examine the experiences of women who chose to breastfeed longer term and to seek insight into the ways they felt breastfeeding could be normalized past infancy. Subjects and Methods: The study combined two qualitative datasets that explored maternal attitudes and experiences toward longer-term breastfeeding. In Study 1 a combination of methods was used, including interviews, to explore the challenges, attitudes, and experiences faced by women who had breastfed for over 6 months postpartum. In Study 2, 1,319 mothers who were pregnant or had an infant 0-2 years old completed an open-ended questionnaire exploring their attitudes toward longer-term breastfeeding. Results: Mothers who had experience of longer-term breastfeeding described how they faced negative attitudes and criticism from others, including the perceptions that longer-term breastfeeding was comical, bizarre, and pointless. Mothers discussed ways in which longer-term breastfeeding could be normalized rather than promoted, targeting health professionals and society instead of encouraging mothers themselves. Key ideas included greater visual representation, increasing knowledge and removing stigma. Conclusions: Longer-term breastfeeding needs to be normalized to increase acceptance and in turn reduce the negative attitudes that mothers often face despite following WHO guidance. Greater support is needed from health professionals and in health policy. © Mary Ann Liebert, Inc

    Perspectives of US women participating in a candidate PrEP study: adherence, acceptability and future use intentions

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    IntroductionLimited data exist on acceptability of candidate preâ exposure prophylaxis (PrEP) regimens among US women. We evaluated PrEP experiences, attitudes and future use intentions among sexually active women who completed the USâ based HIV Prevention Trials Network 069/AIDS Clinical Trials Group 5305 study.MethodsWomen participated in the study between March 2013 and November 2015. We analysed computerâ assisted selfâ interview (CASI) surveys among 130 women and conducted inâ depth interviews among a subset of 26 women from three sites. Interviews were conducted in mid/lateâ 2015.ResultsMost women (57%) reported very good/excellent PrEP adherence on CASI, although 21% acknowledged overâ reporting adherence at least some of the time. Commitment to preventing HIV infection, a sense of ownership of the study, and keeping pills stored in a visible location facilitated adherence. Adherence barriers included â simply forgettingâ and being away from home. Most women interviewed did not intend to use PrEP in the future because of lack of perceived need due to their own (as opposed to their partnersâ ) lowâ risk behaviour and concerns about affordability â but not because of side effects or other characteristics of the regimens.DiscussionImproving HIV prevention options for US women will require access to affordable PrEP as well as expanding women’s understanding of relationshipâ and communityâ level factors that increase their risk of acquiring HIV.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/148389/1/jia225247_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/148389/2/jia225247.pd

    Up-regulation of brain-derived neurotrophic factor in primary afferent pathway regulates colon-to-bladder cross-sensitization in rat

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    Background In humans, inflammation of either the urinary bladder or the distal colon often results in sensory cross-sensitization between these organs. Limited information is known about the mechanisms underlying this clinical syndrome. Studies with animal models have demonstrated that activation of primary afferent pathways may have a role in mediating viscero-visceral cross-organ sensitization. Methods Colonic inflammation was induced by a single dose of tri-nitrobenzene sulfonic acid (TNBS) instilled intracolonically. The histology of the colon and the urinary bladder was examined by hematoxylin and eosin (H&E) stain. The protein expression of transient receptor potential (TRP) ion channel of the vanilloid type 1 (TRPV1) and brain-derived neurotrophic factor (BDNF) were examined by immunohistochemistry and/or western blot. The inter-micturition intervals and the quantity of urine voided were obtained from analysis of cystometrograms. Results At 3 days post TNBS treatment, the protein level of TRPV1 was increased by 2-fold (p \u3c 0.05) in the inflamed distal colon when examined with western blot. TRPV1 was mainly expressed in the axonal terminals in submucosal area of the distal colon, and was co-localized with the neural marker PGP9.5. In sensory neurons in the dorsal root ganglia (DRG), BDNF expression was augmented by colonic inflammation examined in the L1 DRG, and was expressed in TRPV1 positive neurons. The elevated level of BDNF in L1 DRG by colonic inflammation was blunted by prolonged pre-treatment of the animals with the neurotoxin resiniferatoxin (RTX). Colonic inflammation did not alter either the morphology of the urinary bladder or the expression level of TRPV1 in this viscus. However, colonic inflammation decreased the inter-micturition intervals and decreased the quantities of urine voided. The increased bladder activity by colonic inflammation was attenuated by prolonged intraluminal treatment with RTX or treatment with intrathecal BDNF neutralizing antibody. Conclusion Acute colonic inflammation increases bladder activity without affecting bladder morphology. Primary afferent-mediated BDNF up-regulation in the sensory neurons regulates, at least in part, the bladder activity during colonic inflammation

    The impact of regular physical activity on fatigue, depression and quality of life in persons with multiple sclerosis

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    <p>Abstract</p> <p>Background</p> <p>The purpose of this study was to compare fatigue, depression and quality of life scores in persons with multiple sclerosis who do (Exercisers) and do not (Non-exercisers) regularly participate in physical activity.</p> <p>Methods</p> <p>A cross-sectional questionnaire study of 121 patients with MS (age 25–65 yr) living in Queensland, Australia was conducted. Physical activity level, depression, fatigue and quality of life were assessed using the International Physical Activity Questionnaire, Health Status Questionnaire Short Form 36, Becks Depression Inventory and Modified Fatigue Impact Scale.</p> <p>Results</p> <p>52 participants performed at least two 30-min exercise sessions·wk<sup>-1 </sup>(Exercisers) and 69 did not participate in regular physical activity (Non-exercisers). Exercisers reported favourable fatigue, depression and quality of life scores when compared to Non-exercisers. Significant weak correlations were found between both leisure-time and overall reported physical activity levels and some subscales of the quality of life and fatigue questionnaires. Additionally, some quality of life subscale scores indicated that regular physical activity had a greater benefit in subjects with moderate MS.</p> <p>Conclusion</p> <p>Favourable fatigue, depression and quality of life scores were reported by persons with MS who regularly participated in physical activity, when compared to persons with MS who were classified as Non-exercisers.</p

    The Relational Impact of Multiple Sclerosis: An Integrative Review of the Literature Using a Cognitive Analytic Framework

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    This integrative literature review uses cognitive analytic therapy (CAT) theory to examine the impact of a chronic illness, multiple sclerosis (MS), on relationships and mental health. Electronic searches were conducted in six medical and social science databases. Thirty-eight articles met inclusion criteria, and also satisfied quality criteria. Articles revealed that MS-related demands change care needs and alter relationships. Using a CAT framework, the MS literature was analysed, and five key patterns of relating to oneself and to others were identified. A diagrammatic formulation is proposed that interconnects these patterns with wellbeing and suggests potential “exits” to improve mental health, for example, assisting families to minimise overprotection. Application of CAT analysis to the literature clarifies relational processes that may affect mental health among individuals with MS, which hopefully will inform how services assist in reducing unhelpful patterns and improve coping. Further investigation of the identified patterns is needed

    SHIV-162P3 Infection of Rhesus Macaques Given Maraviroc Gel Vaginally Does Not Involve Resistant Viruses

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    Maraviroc (MVC) gels are effective at protecting rhesus macaques from vaginal SHIV transmission, but breakthrough infections can occur. To determine the effects of a vaginal MVC gel on infecting SHIV populations in a macaque model, we analyzed plasma samples from three rhesus macaques that received a MVC vaginal gel (day 0) but became infected after high-dose SHIV-162P3 vaginal challenge. Two infected macaques that received a placebo gel served as controls. The infecting SHIV-162P3 stock had an overall mean genetic distance of 0.294±0.027%; limited entropy changes were noted across the envelope (gp160). No envelope mutations were observed consistently in viruses isolated from infected macaques at days 14–21, the time of first detectable viremia, nor selected at later time points, days 42–70. No statistically significant differences in MVC susceptibilities were observed between the SHIV inoculum (50% inhibitory concentration [IC50] 1.87 nM) and virus isolated from the three MVC-treated macaques (MVC IC50 1.18 nM, 1.69 nM, and 1.53 nM, respectively). Highlighter plot analyses suggested that infection was established in each MVC-treated animal by one founder virus genotype. The expected Poisson distribution of pairwise Hamming Distance frequency counts was observed and a phylogenetic analysis did not identify infections with distinct lineages from the challenge stock. These data suggest that breakthrough infections most likely result from incomplete viral inhibition and not the selection of MVC-resistant variants

    Excision of HIV-1 Proviral DNA by Recombinant Cell Permeable Tre-Recombinase

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    Over the previous years, comprehensive studies on antiretroviral drugs resulted in the successful introduction of highly active antiretroviral therapy (HAART) into clinical practice for treatment of HIV/AIDS. However, there is still need for new therapeutic approaches, since HAART cannot eradicate HIV-1 from the infected organism and, unfortunately, can be associated with long-term toxicity and the development of drug resistance. In contrast, novel gene therapy strategies may have the potential to reverse the infection by eradicating HIV-1. For example, expression of long terminal repeat (LTR)-specific recombinase (Tre-recombinase) has been shown to result in chromosomal excision of proviral DNA and, in consequence, in the eradication of HIV-1 from infected cell cultures. However, the delivery of Tre-recombinase currently depends on the genetic manipulation of target cells, a process that is complicating such therapeutic approaches and, thus, might be undesirable in a clinical setting. In this report we demonstrate that E.coli expressed Tre-recombinases, tagged either with the protein transduction domain (PTD) from the HIV-1 Tat trans-activator or the translocation motif (TLM) of the Hepatitis B virus PreS2 protein, were able to translocate efficiently into cells and showed significant recombination activity on HIV-1 LTR sequences. Tre activity was observed using episomal and stable integrated reporter constructs in transfected HeLa cells. Furthermore, the TLM-tagged enzyme was able to excise the full-length proviral DNA from chromosomal integration sites of HIV-1-infected HeLa and CEM-SS cells. The presented data confirm Tre-recombinase activity on integrated HIV-1 and provide the basis for the non-genetic transient application of engineered recombinases, which may be a valuable component of future HIV eradication strategies

    Working with pain : sustainable work participation of workers with chronic nonspecific musculoskeletal pain

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    Dit proefschrift is een van de eerste studies specifiek gericht op mensen die blijven werken met chronische pijn aan het bewegingsapparaat. Unieke kennis over duurzame arbeidsparticipatie van werknemers met chronische pijn werd vergaard. Doel van dit promotieonderzoek was meer inzicht te krijgen in de groep mensen die werkt met pijn en te achterhalen hoe zij in staat zijn ondanks hun klachten te blijven werken. In het proefschrift staan kenmerken en determinanten beschreven van werknemers die doorwerken met chronische pijn, waardoor een completer beeld is ontstaan van arbeidsparticipatie bij mensen met chronische pijn aan het bewegingsapparaat. Uit de vergelijking van mensen die doorwerken ondanks chronische pijn en mensen met arbeidsverzuim die in revalidatiebehandeling komen met chronische pijn blijkt dat deze groepen op diverse factoren significant verschillen. In het onderzoek werd onder andere aangetoond dat de motivatie voor werk, zelfmanagementvaardigheden en het belang dat wordt toegekend aan pijn, belangrijke factoren zijn die werken met chronische pijn faciliteren. Chronische pijn op zichzelf is vaak niet de reden voor arbeidsverzuim, maar meestal spelen persoonlijke- en omgevingsfactoren daarin een beslissende rol. Deze factoren kunnen dienen als aangrijpingspunt voor het verhogen van duurzame inzetbaarheid en preventie van arbeidsverzuim van mensen met chronische pijn aan het bewegingsapparaat. De effectieve manier waarop deelnemende werknemers in het onderzoek met hun pijn omgingen en productief bleven, kan anderen inspireren aan het werk te blijven. Daarnaast biedt het onderzoek een nieuw referentiekader voor de bedrijfs-, verzekerings-, en revalidatiegeneeskunde. This thesis was one of the first studies that focused specifically on people who continued work with chronic nonspecific musculoskeletal pain (CMP), and collected (identified) unique data concerning sustainable work participation of workers with CMP. It provides a large range of characteristics of workers with CMP who continued work despite pain, which has added to our understanding of sustainable work participation in people suffering from CMP. Comparison of workers who continued work with CMP with sick listed workers with CMP admitted for rehabilitation revealed that these groups differ significantly on several factors. In this thesis, evidence was found that the workers’ motivation to work, self-management skills, and the attributed importance of pain on their (working) lives are important factors to manage staying at work with CMP. It is recommended to be aware of the fact that CMP standing on itself is often not the reason for sick leave and disability, but regularly personal and environmental factors play an additional decisive role. Because these factors can be influenced, they offer opportunity to promote staying at work. In the process of guiding workers back to work, the results of the project ‘Working with pain’ may be used. The findings of this thesis potentially contribute to promotion of sustained work participation and prevention of sick-leave in workers with CMP. The effective way workers in this project coped with CMP and remained productive, may inspire others in their efforts to stay work. Finally, this thesis offers a new reference for rehabilitation-, occupational-,and insurance medicine.

    Can herpes simplex virus type 2 suppression slow HIV disease progression: a study protocol for the VALacyclovir In Delaying Antiretroviral Treatment Entry (VALIDATE) trial

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    <p>Abstract</p> <p>Background</p> <p>Although highly active antiretroviral therapy (HAART) has dramatically decreased HIV-related morbidity and mortality, the associated costs, toxicities, and resistance risks make the potential delay of HAART initiation an attractive goal. Suppression of herpes simplex virus type 2 (HSV-2) may be a novel strategy for achieving this goal because HSV-2 is associated with clinically significant increases in HIV viral load, the primary driver of HIV disease progression.</p> <p>Methods/Design</p> <p>The VALacyclovir In Delaying Antiretroviral Treatment Entry (VALIDATE) trial is a multicentre, randomized, fully blinded, clinical trial of twice daily valacyclovir 500 mg versus placebo for delaying the need for initiating HAART among HIV-1, HSV-2 co-infected HAART-naïve adults. 480 participants from Canada, Brazil and Argentina will undergo quarterly clinical follow-up until reaching the composite primary endpoint of having a CD4+ T-cell count ≤ 350 cells/mm<sup>3 </sup>or initiation of HAART for any reason, whichever occurs first. The primary analysis will use a proportional hazards model, stratified by site, to estimate the relative risk of progression to this endpoint associated with valacyclovir. Secondary analyses will compare the rates of change in CD4 count, median log<sub>10 </sub>HIV viral load, drug-related adverse events, frequency of HSV reactivations, rate of acyclovir-resistant HSV, and quality of life between study arms.</p> <p>Discussion</p> <p>Although HIV treatment guidelines continue to evolve, with some authorities recommending earlier HAART among asymptomatic individuals, the potential delay of HAART remains a clinically relevant goal for many. If shown to be of benefit, implementation of the VALIDATE intervention will require careful consideration of both individual patient-level and public health implications.</p> <p>Trial Registration</p> <p>Current Controlled Trials ISRCTN66756285</p> <p>ClinicalTrials.gov NCT00860977</p
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