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1.
Sci Immunol ; 9(97): eado5295, 2024 Jul 12.
Article in English | MEDLINE | ID: mdl-38996008

ABSTRACT

αß T cell receptor (TCR) V(D)J genes code for billions of TCR combinations. However, only some appear on peripheral T cells in any individual because, to mature, thymocytes must react with low affinity but not high affinity with thymus expressed major histocompatibility (MHC)/peptides. MHC proteins are very polymorphic. Different alleles bind different peptides. Therefore, any individual might express many different MHC alleles to ensure that some peptides from an invader are bound to MHC and activate T cells. However, most individuals express limited numbers of MHC alleles. To explore this, we compared the TCR repertoires of naïve CD4 T cells in mice expressing one or two MHC alleles. Unexpectedly, the TCRs in heterozygotes were less diverse that those in the sum of their MHC homozygous relatives. Our results suggest that thymus negative selection cancels out the advantages of increased thymic positive selection in the MHC heterozygotes.


Subject(s)
CD4-Positive T-Lymphocytes , Heterozygote , Animals , Mice , CD4-Positive T-Lymphocytes/immunology , Receptors, Antigen, T-Cell/immunology , Receptors, Antigen, T-Cell/genetics , Major Histocompatibility Complex/immunology , Major Histocompatibility Complex/genetics , Mice, Inbred C57BL , Thymus Gland/immunology , Receptors, Antigen, T-Cell, alpha-beta/genetics , Receptors, Antigen, T-Cell, alpha-beta/immunology , Mice, Transgenic
2.
MedEdPORTAL ; 19: 11364, 2023.
Article in English | MEDLINE | ID: mdl-38028958

ABSTRACT

Introduction: The growing diversity of the United States population and strong evidence of disparities in health care make it critically important to educate health care professionals to effectively address issues of culture. To that end, we developed a simulation for teaching interpreter use in a telehealth setting. Our contribution of non-English language preference (NELP) patient cases in Spanish, Tagalog, French, and Igbo advances existing literature by combining the skills of interpreter use and telehealth while widening the array of cultures represented. Methods: Simulations were implemented for two cohorts of 60 first-year medical students. In the pilot, nine groups of six to seven students and one faculty met via Zoom with an NELP patient complaining of fatigue, weakness, and cough. When students determined the need for an interpreter, faculty admitted one to the meeting, and the telehealth visit continued. Postsession activities included debriefing and writing a progress note. Results: Course evaluation comments from the first cohort and a postencounter survey of the second cohort were positive. They revealed that students learned to speak slower, in shorter phrases, and directly to the patient. Learners completed note documentation according to a rubric. Discussion: This low-stakes activity provides faculty with a resource for introducing cultural competence into the curriculum. The original Spanish version of the case has been translated into three additional languages, providing a diverse representation of the NELP population. Important points for communicating through an interpreter are practiced in a telehealth setting with a fatigue case.


Subject(s)
Students, Medical , Telemedicine , Humans , United States , Social Determinants of Health , Language , Curriculum
3.
Proc Natl Acad Sci U S A ; 119(29): e2204254119, 2022 07 19.
Article in English | MEDLINE | ID: mdl-35858332

ABSTRACT

Memory CD4+ T cells play a pivotal role in mediating long-term protective immunity, positioning them as an important target in vaccine development. However, multiple functionally distinct helper CD4+ T-cell subsets can arise in response to a single invading pathogen, complicating the identification of rare populations of memory precursor cells during the effector phase of infection and memory CD4+ T cells following pathogen clearance and the contraction phase of infection. Furthermore, current literature remains unclear regarding whether a single CD4+ memory T-cell lineage gives rise to secondary CD4+ T helper subsets or if there are unique memory precursor cells within each helper lineage. A majority of T follicular helper (Tfh) cells, which have established memory potential, express Id3, an inhibitor of E protein transcription factors, following acute viral infection. We show that expression of Id3 definitively identified a subset of cells within both the CD4+ Tfh and T helper 1 (Th1) lineages at memory time points that exhibited memory potential, with the capacity for significant re-expansion in response to secondary infection. Notably, we demonstrate that a subset of Th1 cells that survive into the memory phase were marked by Id3 expression and possessed the potential for enhanced expansion and generation of both Th1 and Tfh secondary effector cell populations in a secondary response to pathogen. Additionally, these cells exhibited enrichment of key molecules associated with memory potential when compared with Id3lo Th1 cells. Therefore, we propose that Id3 expression serves as an important marker to indicate multipotent potential in memory CD4+ T cells.


Subject(s)
CD4-Positive T-Lymphocytes , Immunologic Memory , Inhibitor of Differentiation Proteins , T-Lymphocyte Subsets , Th1 Cells , Animals , CD4-Positive T-Lymphocytes/immunology , Cell Differentiation , Inhibitor of Differentiation Proteins/metabolism , Mice , Mice, Inbred C57BL , T-Lymphocyte Subsets/immunology , Th1 Cells/immunology
4.
Article in English | MEDLINE | ID: mdl-35850958

ABSTRACT

OBJECTIVES: There have been many models of providing oncology and palliative care to hospitals. Many patients will use the hospital non-electively or semielectively, and a large proportion are likely to be in the last years of life. We describe our multidisciplinary service to treatable but not curable cancer patients at University Hospitals Sussex. The team was a mixture of clinical nurse specialists and a clinical fellow supported by dedicated palliative medicine consultant time and oncology expertise. METHODS: We identified patients with cancer who had identifiable supportive care needs and record activity with clinical coding. We used a baseline 2019/2020 dataset of national (secondary uses service) data with discharge code 79 (patients who died during that year) to compare a dataset of patients seen by the service between September 2020 and September 2021 in order to compare outcomes. While this was during COVID-19 this was when the funding was available. RESULTS: We demonstrated a reduction in length of stay by an average of 1.43 days per admission and a reduction of 0.95 episodes of readmission rates. However, the costs of those admissions were found to be marginally higher. Even with the costs of the service, there is a clear return on investment with a benefit cost ratio of 1.4. CONCLUSIONS: A supportive oncology service alongside or allied to acute oncology but in conjunction with palliative care is feasible and cost-effective. This would support investment in such a service and should be nationally commissioned in conjunction with palliative care services seeing all conditions.

5.
J Immunol ; 207(5): 1377-1387, 2021 09 01.
Article in English | MEDLINE | ID: mdl-34380645

ABSTRACT

T cells are essential mediators of immune responses against infectious diseases and provide long-lived protection from reinfection. The differentiation of naive to effector T cells and the subsequent differentiation and persistence of memory T cell populations in response to infection is a highly regulated process. E protein transcription factors and their inhibitors, Id proteins, are important regulators of both CD4+ and CD8+ T cell responses; however, their regulation at the protein level has not been explored. Recently, the deubiquitinase USP1 was shown to stabilize Id2 and modulate cellular differentiation in osteosarcomas. In this study, we investigated a role for Usp1 in posttranslational control of Id2 and Id3 in murine T cells. We show that Usp1 was upregulated in T cells following activation in vitro or following infection in vivo, and the extent of Usp1 expression correlated with the degree of T cell expansion. Usp1 directly interacted with Id2 and Id3 following T cell activation. However, Usp1 deficiency did not impact Id protein abundance in effector T cells or alter effector T cell expansion or differentiation following a primary infection. Usp1 deficiency resulted in a gradual loss of memory CD8+ T cells over time and reduced Id2 protein levels and proliferation of effector CD8+ T cell following reinfection. Together, these results identify Usp1 as a player in modulating recall responses at the protein level and highlight differences in regulation of T cell responses between primary and subsequent infection encounters. Finally, our observations reveal differential regulation of Id2/3 proteins between immune versus nonimmune cell types.


Subject(s)
CD8-Positive T-Lymphocytes/immunology , Ubiquitin-Specific Proteases/metabolism , Animals , Cell Differentiation , Cell Proliferation , Cells, Cultured , Immunity, Cellular , Immunization , Immunologic Memory , Inhibitor of Differentiation Protein 2/metabolism , Inhibitor of Differentiation Proteins/metabolism , Mice , Mice, Inbred C57BL , Mice, Knockout , Protein Processing, Post-Translational , Ubiquitin-Specific Proteases/genetics
6.
CJC Open ; 3(6): 695-702, 2021 Jun.
Article in English | MEDLINE | ID: mdl-34169248

ABSTRACT

BACKGROUND: In patients with out-of-hospital cardiac arrest (OHCA), automated external defibrillator (AED) devices contain valuable data about the patient's initial rhythm. The retrieval process was previously without protocol, despite its critical role in the patient journey. METHODS: Through a Plan-Do-Study-Act model, the cardiology department at Royal Jubilee Hospital (Victoria, British Columbia, Canada) collaborated with provincial emergency health services (British Columbia Emergency Health Services) to cocreate a request process for data from AEDs used by first responders. British Columbia Fire Departments, which are under municipal oversight, required an alternate strategy. Educational presentations allowed for feedback and spread. Patients surviving OHCA and transfer to the regional cardiac centre were consecutively enrolled from November 2018 to April 2020. We evaluated the timeliness of AED information retrieval, and tracked the process to admission. A retrospective chart review informed specifics after admission. A survey to the Coronary Intensive Care Unit staff was used to assess clinical utility. RESULTS: Seventy-one consecutive patients were enrolled during the study period. Seven rhythm strips arrived with the patient, thus not affected by the initiative. From the remaining 64 cases, 80% (n = 51/64) were received within 48 hours, and 88% (n = 45/51) were received within 24 hours with a median of 1 hour. Eighteen Coronary Intensive Care Unit staff completed the survey; 81% reported AED data as "very useful" to clinical decision-making (n = 13/16). The AED rhythm strips provided insight into OHCA etiology (100%; n = 11/11), supported evidence for diagnoses (100%; n = 11/11), and reduced unnecessary testing (64%; n = 7/11). CONCLUSIONS: Implementing an organized protocol allowed for timely access to AED data, which was directly integrated into clinical decision-making and positively affected hospital stay.


CONTEXTE: Lorsqu'un patient subit un arrêt cardiaque extrahospitalier (ACEH), le défibrillateur externe automatisé (DEA) utilisé par les premiers intervenants contient des données précieuses sur son rythme cardiaque initial. Malgré l'importance de ces données pour le parcours du patient, leur récupération n'était auparavant soumise à aucun protocole. MÉTHODOLOGIE: Dans le cadre d'une initiative fondée sur le modèle Planifier, Développer, Contrôler, Ajuster, le service de cardiologie de l'hôpital Royal Jubilee (Victoria, Colombie-Britannique, Canada) a travaillé en collaboration avec les services médicaux d'urgence de la province (British Columbia Emergency Health Services) afin de créer un processus de demande des données enregistrées dans les DEA utilisés par les premiers intervenants. Pour les services des incendies de la Colombie-Britannique, qui relèvent des administrations municipales, il a fallu adopter une autre stratégie. Des séances de sensibilisation ont permis de recueillir une rétroaction et de diffuser l'information. Nous avons retenu pour notre étude les cas des patients consécutifs qui ont survécu à un ACEH et ont été transférés à un centre de cardiologie régional entre novembre 2018 et avril 2020. Nous avons évalué le caractère opportun de la récupération des données des DEA et fait le suivi du processus jusqu'à l'admission du patient à l'hôpital. L'examen rétrospectif des dossiers a permis d'obtenir les données recueillies après l'admission. Un sondage a été mené auprès du personnel de l'unité de soins intensifs de cardiologie pour évaluer l'utilité clinique de l'initiative. RÉSULTATS: Au total, 71 patients consécutifs ont été recrutés durant la période de l'étude. Sept patients sont arrivés à l'hôpital avec le tracé de l'enregistrement de leur rythme cardiaque, et n'ont donc pas été touchés par l'initiative. Sur les 64 autres cas, 80 % (n = 51/64) des tracés ont été obtenus dans les 48 heures, et 88 % (n = 45/51), dans les 24 heures, l'intervalle médian étant de 1 heure. En tout, 18 membres du personnel de l'unité de soins intensifs de cardiologie ont répondu au sondage; 81 % d'entre eux ont dit que les données des DEA étaient « très utiles ¼ à la prise de décisions cliniques (n = 13/16). Les tracés du rythme cardiaque produits par les DEA ont permis de mieux comprendre l'étiologie des ACEH (100 %; n = 11/11), fourni des données facilitant le diagnostic (100 %; n = 11/11) et réduit l'exécution de tests non nécessaires (64 %; n = 7/11). CONCLUSIONS: La mise en œuvre d'un protocole structuré a permis d'accéder en temps opportun aux données des DEA, qui ont été directement prises en compte dans la prise de décisions cliniques et ont eu un effet positif sur l'hospitalisation.

7.
Int J Geriatr Psychiatry ; 36(9): 1415-1422, 2021 09.
Article in English | MEDLINE | ID: mdl-33860554

ABSTRACT

INTRODUCTION: The number of people over the age of 65 attending Emergency Departments (ED) in the United Kingdom (UK) is increasing. Those who attend with a mental health related problem may be referred to liaison psychiatry for assessment. Improving responsiveness and integration of liaison psychiatry in general hospital settings is a national priority. To do this psychiatry teams must be adequately resourced and organised. However, it is unknown how trends in the number and type referrals of older people to liaison psychiatry teams by EDs are changing, making this difficult. METHODS: We performed a national multi-centre retrospective service evaluation, analysing existing psychiatry referral data from EDs of people over 65. We described trends in the number, rate, age, mental health presentation, and time taken to assessment over a 7 years period. RESULTS: Referral data from 28 EDs across England and Scotland were analysed (n = 18,828 referrals). There was a general trend towards increasing numbers of people referred to liaison psychiatry year on year. Variability in referral numbers between different departments, ranged from 0.1 to 24.3 per 1000 ED attendances. The most common reasons for referral were mood disorders, self-harm and suicidal ideas. The majority of referrals were assessed within 60 min, however there is variability between departments, some recording waits over 11 h. DISCUSSION: The data suggests great inter-departmental variability in referral numbers. Is not possible to establish the cause of variability. However, the data highlights the importance of asking further questions about why the differences exist, and the impact that has on patient care.


Subject(s)
Mental Disorders , Psychiatry , Aged , Emergency Service, Hospital , Humans , Mental Disorders/diagnosis , Mental Disorders/therapy , Referral and Consultation , Retrospective Studies , United Kingdom
8.
Immunity ; 52(5): 808-824.e7, 2020 05 19.
Article in English | MEDLINE | ID: mdl-32433949

ABSTRACT

Tissue-resident memory CD8+ T cells (Trm) provide host protection through continuous surveillance of non-lymphoid tissues. Using single-cell RNA-sequencing (scRNA-seq) and genetic reporter mice, we identified discrete lineages of intestinal antigen-specific CD8+ T cells, including a Blimp1hiId3lo tissue-resident effector cell population most prominent in the early phase of acute viral and bacterial infections and a molecularly distinct Blimp1loId3hi tissue-resident memory population that subsequently accumulated at later infection time points. These Trm populations exhibited distinct cytokine production, secondary memory potential, and transcriptional programs including differential roles for transcriptional regulators Blimp1, T-bet, Id2, and Id3 in supporting and maintaining intestinal Trm. Extending our analysis to malignant tissue, we also identified discrete populations of effector-like and memory-like CD8+ T cell populations with tissue-resident gene-expression signatures that shared features of terminally exhausted and progenitor-exhausted T cells, respectively. Our findings provide insight into the development and functional heterogeneity of Trm cells, which has implications for enhancing vaccination and immunotherapy approaches.


Subject(s)
CD8-Positive T-Lymphocytes/immunology , Immunologic Memory/immunology , Lymphocytic Choriomeningitis/immunology , Lymphocytic choriomeningitis virus/immunology , Neoplasms/therapy , Animals , CD8-Positive T-Lymphocytes/metabolism , CD8-Positive T-Lymphocytes/virology , Cells, Cultured , Immunotherapy/methods , Inhibitor of Differentiation Protein 2/genetics , Inhibitor of Differentiation Protein 2/immunology , Inhibitor of Differentiation Protein 2/metabolism , Inhibitor of Differentiation Proteins/genetics , Inhibitor of Differentiation Proteins/immunology , Inhibitor of Differentiation Proteins/metabolism , Lymphocytic Choriomeningitis/virology , Lymphocytic choriomeningitis virus/physiology , Mice, Inbred C57BL , Mice, Knockout , Mice, Transgenic , Neoplasms/immunology , Positive Regulatory Domain I-Binding Factor 1/genetics , Positive Regulatory Domain I-Binding Factor 1/immunology , Positive Regulatory Domain I-Binding Factor 1/metabolism
9.
IEEE Trans Neural Syst Rehabil Eng ; 27(5): 836-845, 2019 05.
Article in English | MEDLINE | ID: mdl-30951474

ABSTRACT

Direct current (DC) nerve block has been shown to provide a complete block of nerve conduction without unwanted neural firing. Previous work shows that high capacitance electrodes can be used to safely deliver a DC block. Another way of delivering DC safely is through a separated interface nerve electrode (SINE), such that any reactive species that are generated by the passage of DC are contained in a vessel away from the nerve. This design has been enhanced by using a high capacitance carbon "slurry" as the electrode in the external vessel to extend the capacity of the electrode (CSINE). With this new design, it was possible to provide 50 min of continuous nerve block without recharge while still maintaining complete recovery of neural signals. Up to 46 C of charge delivery was applied for a total of 4 h of nerve block with complete recovery. Because of the extended delivery time, it was possible to explore several properties of DC block that would not be revealed without the capability of a long-duration continuous block. It was possible to achieve complete block at lower values of DC if the block was applied for a longer period of time. Depending on the amount of charge applied during the block, the recovery was delayed for a period of time before complete force recovery was restored. These new properties provide novel techniques for device development to optimize charge delivery time and device powering concerns.


Subject(s)
Electric Stimulation/instrumentation , Electrodes , Nerve Block , Neural Conduction , Algorithms , Animals , Biocompatible Materials , Bioengineering , Carbon , Equipment Design , Graphite , Muscle, Skeletal/innervation , Muscle, Skeletal/physiology , Rats , Rats, Sprague-Dawley , Sciatic Nerve
10.
Vet Rec ; 182(18): 521, 2018 05 05.
Article in English | MEDLINE | ID: mdl-29728493

ABSTRACT

Laura Shaw argues that, due to the equine profession having the highest injury rate of all civilian professions, senior veterinary surgeons should take the lead in wearing helmets as routine.


Subject(s)
Craniocerebral Trauma/prevention & control , Head Protective Devices/statistics & numerical data , Veterinarians , Animals , Craniocerebral Trauma/epidemiology , Horses , Humans , United Kingdom/epidemiology
11.
Psychooncology ; 27(6): 1589-1596, 2018 06.
Article in English | MEDLINE | ID: mdl-29623676

ABSTRACT

OBJECTIVE: To report on the cost-effectiveness of BRECONDA (Breast RECONstruction Decision Aid), a web-based decision aid to facilitate decisions regarding breast reconstruction surgery, with usual care for women with breast cancer. METHODS: The economic evaluation was conducted alongside a randomized controlled trial. Women diagnosed with breast cancer or ductal carcinoma in situ and eligible for breast reconstruction following mastectomy were randomized to access BRECONDA for 6 months + usual care (n = 106) or usual care (n = 116) and were assessed at baseline preintervention, and then 1-month and 6-months post-randomization. Decisional conflict, satisfaction with information, decisional regret, and utilities were assessed by using maximum-likelihood linear mixed effects models. Costs included the fixed costs of BRECONDA, health care provider time, and health care resource use. Nonparametric bootstrapping was used to estimate incremental cost-effectiveness ratios. RESULTS: BRECONDA resulted in significantly less decisional conflict and greater satisfaction with information over time. Quality-adjusted life years did not differ between participants who received the decision aid compared with usual care. The cost of BRECONDA was estimated to be small (AUD$10) relative to other health care interventions and resulted in decreased health care costs overall (AUD$764). Based on the point estimates, the decision aid was more effective and less costly (dominant) for all measures of effectiveness. It was estimated that the decision aid has an 87% probability of being cost-effective at $60 000 per quality-adjusted life year gained. CONCLUSIONS: The BRECONDA web-based intervention designed to facilitate decisions regarding breast reconstruction surgery is likely to be cost-effective compared with usual care for women with breast cancer.


Subject(s)
Breast Neoplasms/economics , Mammaplasty/psychology , Patient Participation/psychology , Patient Satisfaction/statistics & numerical data , Adult , Aged , Breast Neoplasms/surgery , Conflict, Psychological , Cost-Benefit Analysis , Decision Making , Decision Support Techniques , Female , Health Care Costs , Humans , Mammaplasty/economics , Middle Aged , Patient Participation/economics , Quality-Adjusted Life Years , Single-Blind Method
12.
J Exp Med ; 215(3): 773-783, 2018 03 05.
Article in English | MEDLINE | ID: mdl-29440362

ABSTRACT

CD8+ T cells responding to infection differentiate into a heterogeneous population composed of progeny that are short-lived and participate in the immediate, acute response and those that provide long-lasting host protection. Although it is appreciated that distinct functional and phenotypic CD8+ T cell subsets persist, it is unclear whether there is plasticity among subsets and what mechanisms maintain subset-specific differences. Here, we show that continued Id2 regulation of E-protein activity is required to maintain the KLRG1hi CD8+ T cell population after lymphocytic choriomeningitis virus infection. Induced deletion of Id2 phenotypically and transcriptionally transformed the KLRG1hi "terminal" effector/effector-memory CD8+ T cell population into a KLRG1lo memory-like population, promoting a gene-expression program that resembled that of central memory T cells. Our results question the idea that KLRG1hi CD8+ T cells are necessarily terminally programmed and suggest that sustained regulation is required to maintain distinct CD8+ T cell states.


Subject(s)
Basic Helix-Loop-Helix Transcription Factors/metabolism , CD8-Positive T-Lymphocytes/cytology , CD8-Positive T-Lymphocytes/metabolism , Cell Differentiation , Inhibitor of Differentiation Protein 2/metabolism , Animals , Antigens/metabolism , Gene Deletion , Lectins, C-Type , Mice, Inbred C57BL , Protein Binding , Receptors, Immunologic/metabolism
13.
Vet Rec ; 182(8): 234, 2018 02 24.
Article in English | MEDLINE | ID: mdl-29472408
14.
J Dent Hyg ; 91(5): 64-67, 2017 Oct.
Article in English | MEDLINE | ID: mdl-29118281

ABSTRACT

Purpose: The purpose of this study was to compare sharpening efficiency and metal (carbon steel) removal from scalers using two types of synthetic sharpening stones: ceramic and diamond-plated. Previous research used scanning electron microscopy alone to measure instrument sharpness. Additionally, no research has been reported on the use of diamond-plated sharpening stones.Methods: Fifteen threaded, double-ended H6/H7 scalers were randomly divided into three groups of ten: control, ceramic stone, and diamond-plated stone. All cutting edges were dulled by scaling the surfaces of extracted molars. The cutting edges were then sharpened by a blinded examiner with the assigned stone until optimal sharpness was achieved using a test stick between sharpening strokes. The number of strokes needed to reach sharpness for each cutting edge was recorded. Four hundred sharpening strokes were then applied on each end using the assigned stone. The scaler ends were weighed before and after sharpening to determine amount of material loss in milligrams. Statistical analysis was performed using ANOVA followed by a Tukey-Kramer post-hoc test.Results: The diamond-plated sharpening stone removed significantly more metal (7.62 mg +/-0.38) than the ceramic stone (0.69 mg +/-0.06) (p<0.001), while there was no significant difference between the ceramic sharpening stone and the control. There was no significant difference between diamond-plated and ceramic stones in the number of strokes needed to sharpen scalers.Conclusion: While a similar number of strokes was needed to sharpen scalers with the diamond-plated or ceramic stone, the diamond-plated stone removed nearly 7 mg more metal than the ceramic stone using a standardized number of sharpening strokes, suggesting greater scaler longevity when using a ceramic sharpening stone.


Subject(s)
Ceramics/chemistry , Dental Instruments , Dental Scaling/instrumentation , Diamond/chemistry , Analysis of Variance , Humans , Microscopy, Electron, Scanning , Molar , Surface Properties
15.
Breast ; 36: 79-85, 2017 Dec.
Article in English | MEDLINE | ID: mdl-29031121

ABSTRACT

BACKGROUND: Decision-making concerning risk-reducing mastectomy for women at hereditary risk of breast cancer entails complex personal choices. Deciding whether and how to restore breast shape after risk-reducing mastectomy is a key part of this process. We developed a web-based decision aid, BRECONDA (Breast Reconstruction Decision Aid), to assist women in decision-making regarding breast reconstruction. METHOD: This study assessed the efficacy of BRECONDA to assist women at increased risk of breast cancer in making decisions regarding risk-reducing mastectomy in terms of decisional conflict, knowledge, and satisfaction with information. Women at hereditary risk of breast cancer (N = 64) were recruited into this randomized controlled trial from four Australian hereditary cancer clinics. Participants initially provided online consent and completed baseline questionnaires assessing decisional conflict, knowledge, and satisfaction with information. They were then randomly assigned to either: 1) Intervention - unlimited access to BRECONDA, with usual care; or, 2) Control - usual care. At 2-months follow-up (N = 60) the outcomes were re-assessed. Intervention participants also completed user acceptability ratings for the intervention overall and specific key modules. RESULTS: MANCOVA analyses indicated that Intervention participants reported lower decisional conflict (P = 0.027), and greater knowledge (P = 0.019) and satisfaction with information (P < 0.0005) at 2-months follow-up compared with Controls. Intervention participants reported high user acceptability and satisfaction with the intervention. CONCLUSION: BRECONDA benefits women considering risk-reducing mastectomy by reducing decisional conflict, and improving knowledge and satisfaction with information. These benefits, coupled with high user acceptability, demonstrate the feasibility of implementing BRECONDA in the hereditary cancer risk context.


Subject(s)
Breast Neoplasms/genetics , Breast Neoplasms/prevention & control , Decision Making , Decision Support Techniques , Patient Satisfaction , Prophylactic Mastectomy/psychology , Adult , Conflict, Psychological , Female , Genetic Testing , Health Knowledge, Attitudes, Practice , Humans , Internet , Mammaplasty , Middle Aged , Patient Education as Topic
16.
Psychooncology ; 26(10): 1618-1624, 2017 Oct.
Article in English | MEDLINE | ID: mdl-27957772

ABSTRACT

OBJECTIVE: Women diagnosed with breast cancer or ductal carcinoma in situ and those with a genetic susceptibility to developing this disease face the challenging decision of whether or not to undergo breast reconstruction following mastectomy. As part of a large randomized controlled trial, this qualitative study examined women's experiences of using the Breast RECONstruction Decision Aid (BRECONDA) and health professionals' feedback regarding the impact of this resource on patients' knowledge and decision making about breast reconstruction. METHOD: Semistructured interviews were conducted with women who accessed the BRECONDA intervention (N = 36) and with their healthcare providers (N = 6). All interviews were transcribed verbatim and subjected to thematic analysis by 3 independent coders. RESULTS: Participants reported an overall positive impression, with all interviewees endorsing this decision aid as a useful resource for women considering reconstructive surgery. Thematic analysis of patient interviews revealed 4 themes: overall impressions and aesthetics; personal relevance and utility; introducing BRECONDA; and advantages and suggested improvements. Analysis of health professionals' interviews also revealed 4 themes: need for BRECONDA, impact of BRECONDA, potential difficulties that may arise in using the decision aid, and recommending BRECONDA to patients. Patients indicated that they derived benefit from this resource at all stages of their decision-making process, with the greatest perceived benefit being for those early in their breast reconstruction journey. CONCLUSION: These findings support the use of BRECONDA as an adjunct to clinical consultation and other information sources.


Subject(s)
Breast Implantation/psychology , Cancer Survivors/psychology , Decision Support Techniques , Mammaplasty/psychology , Mastectomy/psychology , Adult , Aged , Australia , Breast Implantation/statistics & numerical data , Breast Neoplasms/surgery , Decision Making , Female , Humans , Mammaplasty/methods , Mastectomy/methods , Middle Aged , Qualitative Research , Referral and Consultation
17.
Plast Reconstr Surg ; 138(4): 592e-602e, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27673530

ABSTRACT

BACKGROUND: Deciding whether or not to have breast reconstruction following breast cancer diagnosis is a complex decision process. This randomized controlled trial assessed the impact of an online decision aid [Breast RECONstruction Decision Aid (BRECONDA)] on breast reconstruction decision-making. METHODS: Women (n = 222) diagnosed with breast cancer or ductal carcinoma in situ, and eligible for reconstruction following mastectomy, completed an online baseline questionnaire. They were then assigned randomly to receive either standard online information about breast reconstruction (control) or standard information plus access to BRECONDA (intervention). Participants then completed questionnaires at 1 and 6 months after randomization. The primary outcome was participants' decisional conflict 1 month after exposure to the intervention. Secondary outcomes included decisional conflict at 6 months, satisfaction with information at 1 and 6 months, and 6-month decisional regret. RESULTS: Linear mixed-model analyses revealed that 1-month decisional conflict was significantly lower in the intervention group (27.18) compared with the control group (35.5). This difference was also sustained at the 6-month follow-up. Intervention participants reported greater satisfaction with information at 1- and 6-month follow-up, and there was a nonsignificant trend for lower decisional regret in the intervention group at 6-month follow-up. Intervention participants' ratings for BRECONDA demonstrated high user acceptability and overall satisfaction. CONCLUSIONS: Women who accessed BRECONDA benefited by experiencing significantly less decisional conflict and being more satisfied with information regarding the reconstruction decisional process than women receiving standard care alone. These findings support the efficacy of BRECONDA in helping women to arrive at their breast reconstruction decision.


Subject(s)
Decision Making , Decision Support Techniques , Mammaplasty/psychology , Mastectomy , Patient Participation/methods , Patient Satisfaction/statistics & numerical data , Adult , Aged , Female , Follow-Up Studies , Humans , Internet , Middle Aged , Outcome Assessment, Health Care , Patient Education as Topic , Patient Participation/psychology , Single-Blind Method
18.
J Psychosoc Oncol ; 34(4): 318-35, 2016.
Article in English | MEDLINE | ID: mdl-27403802

ABSTRACT

This study examined women's experiences of romantically dating after breast cancer. Semistructured interviews were conducted with 22 female breast cancer survivors who attempted to form new relationships post-breast cancer. Interview transcripts were analyzed using grounded theory methodology. We identified an overarching theme of "navigating the breast cancer dating journey," comprising seven themes including women's decision to consider dating; ability/desire to commence a new relationship; cancer-related disclosure; changes to intimacy and sexuality; body image difficulties; changing values; and trusting a new partner. Future research should empirically determine factors predicting a woman's ability to form a romantic relationship after breast cancer.


Subject(s)
Breast Neoplasms/psychology , Courtship/psychology , Survivors/psychology , Adult , Aged , Body Image/psychology , Breast Neoplasms/therapy , Female , Humans , Middle Aged , Qualitative Research , Sexual Partners/psychology , Sexuality/psychology , Survivors/statistics & numerical data
19.
Nat Immunol ; 17(7): 834-43, 2016 07.
Article in English | MEDLINE | ID: mdl-27213691

ABSTRACT

The differentiation of helper T cells into effector subsets is critical to host protection. Transcription factors of the E-protein and Id families are important arbiters of T cell development, but their role in the differentiation of the TH1 and TFH subsets of helper T cells is not well understood. Here, TH1 cells showed more robust Id2 expression than that of TFH cells, and depletion of Id2 via RNA-mediated interference increased the frequency of TFH cells. Furthermore, TH1 differentiation was blocked by Id2 deficiency, which led to E-protein-dependent accumulation of effector cells with mixed characteristics during viral infection and severely impaired the generation of TH1 cells following infection with Toxoplasma gondii. The TFH cell-defining transcriptional repressor Bcl6 bound the Id2 locus, which provides a mechanism for the bimodal Id2 expression and reciprocal development of TH1 cells and TFH cells.


Subject(s)
Arenaviridae Infections/immunology , Cell Differentiation , Inhibitor of Differentiation Protein 2/metabolism , Lymphocytic choriomeningitis virus/immunology , Th1 Cells/physiology , Toxoplasma/immunology , Toxoplasmosis/immunology , Animals , Basic Helix-Loop-Helix Transcription Factors/metabolism , Cells, Cultured , Female , Germinal Center/immunology , Inhibitor of Differentiation Protein 2/genetics , Male , Mice , Mice, Inbred C57BL , Mice, Inbred CBA , Mice, Transgenic , Protein Binding , Proto-Oncogene Proteins c-bcl-6/metabolism , RNA, Small Interfering/genetics , Th1 Cells/parasitology , Th1 Cells/virology
20.
J Nerv Ment Dis ; 203(8): 591-5, 2015 Aug.
Article in English | MEDLINE | ID: mdl-26230647

ABSTRACT

As part of a larger, mixed-methods study, we posted an invitation to participate in a study on the effects of reading eating disorder memoirs on the website of an organization that provides support for people with eating disorders. Twenty-four women completed the questionnaire. Qualitative analysis of their responses indicated a recovery continuum, whereby the direction of memoir influence seemed to depend on an individual's recovery stage and motivation to recover. Individuals who reported that they were exposed to memoirs before, or during, their illness reported experiencing negative consequences including making unfavorable social comparisons, along with emulation and triggering of disordered behaviors, whereas those who reported being exposed when in recovery reported more positive outcomes including hope, validation, and social support. Findings have implications for the use of personal accounts as a means of facilitating patient recovery in eating disorder treatment settings. Future research should test the influence of memoirs using a larger eating disorder sample, and across different recovery stages.


Subject(s)
Feeding and Eating Disorders/psychology , Feeding and Eating Disorders/therapy , Narrative Therapy/methods , Reading , Self Report , Social Support , Adolescent , Adult , Female , Humans , Internet , Middle Aged , Surveys and Questionnaires , Treatment Outcome , Young Adult
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