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1.
Diabet Med ; : e15439, 2024 Sep 20.
Article in English | MEDLINE | ID: mdl-39302078

ABSTRACT

AIMS: To explore the sexual experiences and interactions of women with type 1 diabetes to explicate an understanding of the impact of diabetes on women's sexual function. The study was conducted as part of a wider project to develop a patient-reported outcome measure to assess sexual dysfunction (SD) in premenopausal women with type 1 diabetes. METHODS: A qualitative study using face-to-face and virtual semi-structured interviews was conducted with premenopausal women with type 1 diabetes who have had some difficulties related to sexual functioning. Participants were recruited from two National Health Services (NHS) sites in the UK and from social media platforms. The data were analysed to generate themes using Framework Analysis approach. RESULTS: Eighteen women, aged 22-49, were interviewed (NHS sites n = 13; online n = 5). Five themes related to women experiences of SD were identified, these were; initiation of sexual activity, sexual confidence, sexual enjoyment, sexual engagement and sexual desire. CONCLUSIONS: SD in women with type 1 diabetes is a complex phenomenon impacting their experiences and quality of life. SD is related to multiple interacting biopsychosocial factors related to diabetes, including blood glucose levels, diabetes treatments, technologies and complications. A targeted measure of SD for women with type 1 diabetes specifically would allow for these factors to be assessed routinely in clinical care.

2.
BMC Public Health ; 24(1): 789, 2024 Mar 13.
Article in English | MEDLINE | ID: mdl-38481230

ABSTRACT

BACKGROUND: Around one in ten people who contract Covid-19 report ongoing symptoms or 'Long Covid'. Without any known interventions to cure the condition, forms of self-management are routinely prescribed by healthcare professionals and described by people with the condition. However, there is limited research exploring what strategies are used to navigate everyday life with Long Covid, and experiences that initiate development of these strategies. Our study aimed to explore the range and influence of self-generated strategies used by people with Long Covid to navigate everyday life within the context of their own condition. METHODS: Forming part of the Long Covid Personalised Self-managemenT support co-design and EvaluatioN (LISTEN) project, we conducted a qualitative study using narrative interviews with adults who were not hospitalised with Covid-19. Participants aged over 18 years, who self-identified with Long Covid, were recruited from England and Wales. Data were analysed with patient contributors using a reflexive thematic analysis. RESULTS: Eighteen participants (mean age = 44 years, SD = 13 years) took part in interviews held between December 2021 and February 2022. Themes were constructed which depicted 1) the landscape behind the Long Covid experience and 2) the everyday experience of participants' Long Covid. The everyday experience comprised a combination of physical, emotional, and social factors, forming three sub-themes: centrality of physical symptoms, navigating 'experts' and the 'true colour' of personal communities, and a rollercoaster of psychological ambiguity). The third theme, personal strategies to manage everyday life was constructed from participants' unique presentations and self-generated solutions to manage everyday life. This comprised five sub-themes: seeking reassurance and knowledge, developing greater self-awareness through monitoring, trial and error of 'safe' ideas, building in pleasure and comfort, and prioritising 'me'. CONCLUSIONS: Among this sample of adults with Long Covid, their experiences highlighted the unpredictable nature of the condition but also the use of creative and wide ranging self-generated strategies. The results offer people with Long Covid, and healthcare professionals supporting them, an overview of the collective evidence relating to individuals' self-management which can enable ways to live 'better' and regain some sense of identity whilst facing the impact of a debilitating, episodic condition. TRIAL REGISTRATION: LISTEN ISRCTN36407216.


Subject(s)
COVID-19 , Self-Management , Adult , Humans , Middle Aged , Post-Acute COVID-19 Syndrome , Qualitative Research , Palliative Care
3.
J Clin Nurs ; 33(2): 653-663, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37743636

ABSTRACT

AIMS: The aims of the study were to explore the experiences of women with gestational diabetes mellitus (GDM) and their partners and examine the factors influencing partner involvement in GDM management, seeking to inform a targeted couple-based intervention. DESIGN: A descriptive qualitative study. METHODS: We conducted semi-structured interviews with 14 women with GDM and their partners. Participants were recruited through convenience sampling from a tertiary hospital in Xi'an, China. Data were analysed using thematic analysis. RESULTS: Three themes and 12 subthemes were identified. Theme I: Women's expectations of their partner's involvement in GDM management-practical support and emotional support. Theme II: Partner involvement in GDM management-constructive involvement, unhelpful involvement with good intentions and insufficient involvement. Theme III: Factors that influence partner involvement in GDM-knowledge of GDM, GDM risk perception, health consciousness, attitudes towards the treatment plan, couple communication regarding GDM management, family roles and appraisal of GDM management responsibility. CONCLUSION: Women desired practical and emotional support from partners. The types of partner involvement in GDM management varied. Some partners provided constructive support, while some partners' involvement was limited, non-existent or actively unhelpful. By combining these results with the factors influencing partner involvement, our findings may help healthcare professionals develop strategies to involve partners in GDM care and enhance women's ability to manage GDM. IMPLICATIONS FOR THE PROFESSION AND PATIENT CARE: Partner involvement in GDM care may help them understand and better attend to women's needs, thus improving their experience and potential outcomes. This study highlights novel factors that need to be considered in developing couple-based interventions for this population. REPORTING METHOD: The reporting follows the COREQ checklist. PATIENT OR PUBLIC CONTRIBUTION: Some patients were involved in data interpretation. There is no public contribution.


Subject(s)
Diabetes, Gestational , Pregnancy , Female , Humans , Diabetes, Gestational/therapy , Diabetes, Gestational/psychology , Qualitative Research , Attitude , Communication , Intention
4.
Diabetes Res Clin Pract ; 205: 110947, 2023 Nov.
Article in English | MEDLINE | ID: mdl-37832725

ABSTRACT

AIMS: To estimate the effectiveness of the Couples Coping with Gestational Diabetes Mellitus (GDM) Programme on GDM self-management and pregnancy outcomes. METHODS: A randomised controlled trial among pregnant women with suboptimal GDM self-management and their partners was undertaken. Couples recruited from three hospitals in China were randomly allocated to either intervention (n = 70) or control (n = 70) conditions. Couples in the intervention group underwent the couple-based intervention (GDM education, shared illness appraisals, initiation of collaborative action and consolidation of collaborative action). Women in the control group received individual GDM education. Data were analysed using the independent samples t-test, chi-square test, and generalised estimating equations. RESULTS: GDM knowledge for the women and their partners and GDM self-management significantly improved in both the intervention and control groups, with stronger improvement in the intervention group. Women in the intervention group gained significantly less weight than those in the control group (11.2 kg ± 2.8 kg vs 13.1 kg ± 2.6 kg, p = 0.008). Infant birth weights were significantly lower in the intervention group (3.2 kg ± 0.3 kg vs 3.4 kg ± 0.4 kg, p = 0.008). There were no significant differences in other pregnancy outcomes. CONCLUSIONS: The Couples Coping with GDM Programme was associated with improvements in GDM knowledge of women and their partners and in women's self-management, and with lower gestational weight gain and infant birth weight.


Subject(s)
Diabetes, Gestational , Self-Management , Pregnancy , Female , Humans , Diabetes, Gestational/therapy , Birth Weight , Pregnant Women , Pregnancy Outcome
5.
Am J Obstet Gynecol MFM ; 5(10): 101137, 2023 10.
Article in English | MEDLINE | ID: mdl-37619781

ABSTRACT

OBJECTIVE: This study aimed to summarize the current interventions aimed at improving postpartum diabetes screening attendance and to compare their effectiveness. DATA SOURCES: Literature searches were conducted in the Web of Science, Embase, Cochrane Library, CINAHL, and PubMed from inception to March 20, 2023. STUDY ELIGIBILITY CRITERIA: Quantitative studies involving an intervention to increase postpartum diabetes screening attendance among women with gestational diabetes mellitus were included. METHODS: The Joanna Briggs Institute checklists were used for the quality appraisal of the included studies. A Bayesian network meta-analysis was performed to synthesize the comparative effectiveness of the relevant interventions aimed at improving postpartum diabetes screening rates. RESULTS: A total of 40 studies were included in this review with pooled data from 17,123 women. Studies included randomized controlled trials (n=11, including 3 US-based studies and 8 non-US-based studies) and nonrandomised studies (n=29, including 13 US-based studies and 16 non-US-based studies). Of the 14 studies that reported screening outcomes, 11 detected early type 2 diabetes at a rate ranging from 2.0% to 23.0%. The types of interventions identified included reminders (eg, postal letters, emails, and phone messages), educational interventions, screening methods and delivery, policy changes, antenatal groups, and multimodal interventions. Based on the network meta-analysis from randomized controlled trials, antenatal group intervention, which refers to antenatal patient education delivered in groups (1 US-based study), had the highest probability to be the most effective intervention (odds ratio, 10; 95% confidence interval, 1.6-77.0), followed by one-to-one educational intervention with written educational materials or counselling (odds ratio, 6.9; 95% confidence interval, 3.6-16.0). The results from nonrandomized studies indicated that flexible screening methods and delivery (2 US-based studies) had the greatest impact on screening uptake (odds ratio, 3.9; 95% confidence interval, 1.8-10.0), followed by educational interventions (1 US-based study and 2 non-US-based studies) with antenatal patient education and written educational materials (odds ratio, 3.4; 95% confidence interval, 1.9-6.3) and antenatal groups (odds ratio, 3.3; 95% confidence interval, 1.7-6.7). CONCLUSION: The presented evidence suggests that antenatal patient education delivered in groups and offering more flexible screening methods were associated with the greatest increase in attendance. The multimodal interventions and reminders could still be important if they were more theoretically grounded and were more integrated into the healthcare system.


Subject(s)
Diabetes Mellitus, Type 2 , Diabetes, Gestational , Humans , Pregnancy , Female , Diabetes, Gestational/diagnosis , Diabetes, Gestational/epidemiology , Diabetes, Gestational/therapy , Bayes Theorem , Network Meta-Analysis , Postpartum Period
6.
PLoS One ; 17(12): e0273992, 2022.
Article in English | MEDLINE | ID: mdl-36584120

ABSTRACT

OBJECTIVES: To assess the feasibility of an ante- and post-natal lifestyle intervention for women with gestational diabetes mellitus (GDM) to reduce type 2 diabetes risk. DESIGN: A partially randomised patient preference feasibility trial. SETTING: Diabetes antenatal clinics in two inner-London hospitals, UK. PARTICIPANTS: Pregnant women ≥18 years with a GDM diagnosis and pre-pregnancy body mass index of ≥25kg/m2. INTERVENTION: Participants in the intervention group were offered four motivational interview-based sessions (two antenatally and two postnatally, at 3 and 6 months postpartum), a WhatsApp support group, a FitBit and electronic self-help resources. OUTCOME MEASURES: Recruitment; retention; intervention dose received; data completion; adaptions; proportion achieving ≥5% weight loss; weight change, blood glucose; blood pressure; diet, physical activity, breastfeeding and depression. Clinical outcomes were measured at baseline and 6 months postpartum. RESULTS: 50 participants were recruited from 155 eligible women (32% recruitment rate). Thirty-four were recruited to the intervention group (23 following randomisation (RI-group) and 11 based on preference (PI-group)); and 16 to the control group (13 randomised (RC-group) and 3 preference (PC-group)). Attrition was 44% (n = 22/50). Forty-six percent (n = 6) of the intervention group (25% (n = 2) of the RI-group and 80% (n = 4) of the PI-group) achieved ≥5% weight loss compared to 8% (n = 1) in the control group (95% confidence interval (CI) -0.69 to 0.07). Mean weight change was -2.1kg±9.0 in the intervention group (0kg±5.4 in the RI-group and -5.4kg±13.0 in the PI-group) compared to +4.4kg±4.9 in the control group (RC +4.4kg ±5.3 and PC +4.7kg ±3.1, 95% CI -12.4 to 0.2). CONCLUSIONS: Recruitment was feasible, but strategies to improve retention are needed. The findings suggest the intervention can support women with GDM to lose weight. The observed weight loss was primarily in women who preferred the intervention. Therefore, future trials may need to adopt a preference design and consider factors associated with preference. TRIAL REGISTRATION: Trial registration: ISRCTN52675820 https://www.isrctn.com/ISRCTN52675820?q=ISRCTN52675820&filters=&sort=&offset=1&totalResults=1&page=1&pageSize=10&searchType=basic-search.


Subject(s)
Diabetes Mellitus, Type 2 , Diabetes, Gestational , Pregnancy , Humans , Female , Diabetes, Gestational/prevention & control , Diabetes, Gestational/diagnosis , Diabetes Mellitus, Type 2/prevention & control , Feasibility Studies , Postpartum Period , Weight Loss
7.
J Womens Health (Larchmt) ; 31(9): 1232-1240, 2022 09.
Article in English | MEDLINE | ID: mdl-35856836

ABSTRACT

Background: There is evidence that women with gestational diabetes are at increased risk of the common mental disorders of anxiety and depression. The COVID-19 pandemic may have exerted an additional burden on the mental health of this population. The aim of this analysis was to compare levels of symptoms of common mental disorders and experiences during the COVID-19 pandemic between pregnant and postnatal women exposed and unexposed to gestational diabetes. Methods: Cross-sectional study utilizing quantitative data from an online survey administered across 10 countries to women who were pregnant or up to 6 months postpartum from 15 June to October 31, 2020. Women self-reported gestational diabetes and completed the Edinburgh Postnatal Depression Scale and GAD-7 (Generalized Anxiety Disorder 7 items) measures. The COPE-IS (Coronavirus Perinatal Experiences-Impact Survey) tool was also administered. Complete case analyses were conducted on a sample of 7,371 women. Results: There was evidence of an association between gestational diabetes and increased levels of depression symptoms, which was robust to adjustment for age, education, and employment status. There was only evidence of an association with anxiety in postnatal women. There was also evidence that women with gestational diabetes, particularly those in the postnatal period, experienced higher levels of pandemic-related distress, although they did not experience higher levels of COVID-19 infection in this sample. Conclusions: The increased risk of common mental disorders in women with gestational diabetes underscores the importance of integrated physical and mental health care for pregnant and postnatal women both during and beyond the pandemic. Clinical Trial Registration no. NCT04595123.


Subject(s)
COVID-19 , Diabetes, Gestational , Anxiety/diagnosis , Anxiety/epidemiology , COVID-19/epidemiology , Cross-Sectional Studies , Depression/diagnosis , Diabetes, Gestational/epidemiology , Female , Humans , Mental Health , Pandemics , Pregnancy , Pregnant Women/psychology , SARS-CoV-2
8.
BMJ Open ; 12(6): e062971, 2022 06 09.
Article in English | MEDLINE | ID: mdl-35680254

ABSTRACT

INTRODUCTION: Adolescence is a challenging period for young people with type 1 diabetes, associated with worsening glycaemia and care disengagement. Educational interventions in this period tend to focus on diabetes-specific skills, with less emphasis on the psychosocial challenges associated with diabetes experienced by young people. To address this limitation, we codesigned with young people a psychosocially modelled programme of diabetes education, named 'Youth Empowerment Skills' (YES). The programme aims to facilitate a positive adaptation to life with diabetes and engagement with diabetes care through peer-based learning, immersive simulations and support from an outreach youth worker. Here, we present a protocol for a feasibility study of the YES programme. METHODS AND ANALYSIS: The study was designed following the Medical Research Council Complex Intervention Evaluation Framework to: test the feasibility (acceptance, implementability, recruitment and completion) of the YES programme; and estimate its efficacy in relation to metabolic and psychosocial outcomes. The study will take place in diabetes centres serving socioculturally diverse populations. We will conduct a feasibility randomised controlled trial (waiting-list design) with integrated process evaluation. Fifty young people with type 1 diabetes (aged 14-19 years) will be randomly allocated to either the YES intervention or a waiting-list control. Randomisation acceptability will be assessed with provision for a preference allocation. Outcomes will be evaluated at 6 months, at which point the waiting list participants will be exposed to the YES programme with further follow-up to 12 months. A simultaneous process evaluation will use a mixed-methods approach collecting qualitative and quantitative data. Study findings will be used to optimise the intervention components, outcome measures and recruitment methods to inform a subsequent definitive trial. ETHICS AND DISSEMINATION: The protocol has ethical approval from the UK Health Research Authority (approval IRAS project ID: 279877). Findings will be disseminated in multiple formats for lay and professional audiences. PROTOCOL DATE AND VERSION: 7 April 2021, V.1.1. TRIAL REGISTRATION NUMBER: NCT04670198.


Subject(s)
Diabetes Mellitus, Type 1 , Adolescent , Blood Glucose , Diabetes Mellitus, Type 1/therapy , Feasibility Studies , Health Education , Humans , Randomized Controlled Trials as Topic
9.
BMC Pregnancy Childbirth ; 18(1): 25, 2018 01 11.
Article in English | MEDLINE | ID: mdl-29325518

ABSTRACT

BACKGROUND: Gestational diabetes mellitus (GDM) is an increasingly common condition of pregnancy. It is associated with adverse fetal, infant and maternal outcomes, as well as an increased risk of GDM in future pregnancies and type 2 diabetes for both mother and offspring. Previous studies have shown that GDM can result in an emotionally distressing pregnancy, but there is little research on the patient experience of GDM care, especially of a demographically diverse UK population. The aim of this research was to explore the experiences of GDM and GDM care for a group of women attending a large diabetes pregnancy unit in southeast London, UK, in order to improve care. METHODS: Framework analysis was used to support an integrated analysis of data from six focus groups with 35 women and semi-structured interviews with 15 women, held in 2015. Participants were purposively sampled and were representative of the population being studied in terms of ethnicity, age, deprivation score and body mass index (BMI). RESULTS: We identified seven themes: the disrupted pregnancy, projected anxiety, reproductive asceticism, women as baby machines, perceived stigma, lack of shared understanding and postpartum abandonment. These themes highlight the often distressing experience of GDM. While most women were grateful for the intensive support they received during pregnancy, the costs to their personal autonomy were high. Women described feeling valued solely as a means to produce a healthy infant, and felt chastised if they failed to adhere to the behaviours required to achieve this. This sometimes had an enduring impact to the potential detriment of women's long-term psychological and physical health. CONCLUSIONS: This study reveals the experiences of a demographically diverse group of patients with GDM, reflecting findings from previous studies globally and extending analysis to the context of improving care. Healthcare delivery may need to be reoriented to improve the pregnancy experience and help ensure women are engaged and attentive to their own health, particularly after birth, without compromising clinical pregnancy outcomes. Areas for consideration in GDM healthcare include: improved management of emotional responses to GDM; a more motivational approach; rethinking the medicalisation of care; and improved postpartum care.


Subject(s)
Diabetes, Gestational/psychology , Pregnant Women/psychology , Prenatal Care/psychology , Adult , Emotions , Female , Focus Groups , Humans , Middle Aged , Personal Autonomy , Pregnancy , Qualitative Research , Quality of Health Care , Social Stigma , Young Adult
10.
Qual Health Res ; 24(4): 575-85, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24682021

ABSTRACT

Women with gestational diabetes are at high risk of developing type 2 diabetes, which could be prevented or delayed by lifestyle modification. Lifestyle interventions need to take into account the specific situation of women with gestational diabetes. We aimed to gain a deeper understanding of women's experiences of gestational diabetes, their diabetes risk perceptions, and their views on type 2 diabetes prevention, to inform future lifestyle interventions. We conducted a metasynthesis that included 16 qualitative studies and identified 11 themes. Factors that require consideration when developing a type 2 diabetes prevention intervention in this population include addressing the emotional impact of gestational diabetes; providing women with clear and timely information about future diabetes risk; and offering an intervention that fits with women's multiple roles as caregivers, workers, and patients, and focuses on the health of the whole family.


Subject(s)
Diabetes Mellitus, Type 2/prevention & control , Diabetes, Gestational/psychology , Health Knowledge, Attitudes, Practice , Australia , Canada , Diabetes Mellitus, Type 2/etiology , Diabetes, Gestational/physiopathology , Female , Health Behavior , Humans , Perception , Pregnancy , Risk Reduction Behavior , United States
11.
J Fam Plann Reprod Health Care ; 39(2): 97-101, 2013 Apr.
Article in English | MEDLINE | ID: mdl-22923279

ABSTRACT

INTRODUCTION: In the UK half of all pregnancies are unplanned and half of teenage pregnancies terminated. Southwark and Lambeth have the highest teenage conception rates in London. In 2009, many teenage pregnancies in Southwark led to terminations. A contraception service was established where qualified pharmacists supplied oral contraception (OC) using a patient group direction (PGD). This service evaluation aimed to assess this service delivered in five community pharmacies. METHODS: Monthly data were submitted by each pharmacy to the Primary Care Trust on consultations, pills supplied, initial or subsequent supply and client referral. For specified periods consultation time was collected and a clinical notes audit undertaken. Client satisfaction was determined using a structured questionnaire returned to the pharmacy. Mystery shoppers were employed to assess the service. RESULTS: A total of 741 consultations were undertaken by seven pharmacists at five community pharmacies (October 2009-June 2011) with many (45.5%) occurring following emergency contraception supply. The mean consultation time was 19 minutes . Combined OC was most commonly supplied with nearly half (46.1%) of initial supplies to first-time pill users. Most consultations (92.2%) were with women aged under 30 years, with 22.5% aged under 20. Most consultations were with black or black British clients. Of the 99 women who completed the satisfaction questionnaires, most clients were very satisfied or satisfied with the service and felt comfortable talking to the pharmacist about contraception. CONCLUSIONS: Trained pharmacists were clinically competent and provided OC in community pharmacy according to a PGD. This service was accessed by the target population; young women using emergency hormonal contraception who had not previously used OC. Clients were largely very satisfied with the service.


Subject(s)
Contraceptives, Oral/therapeutic use , Pharmacies , Adolescent , Adult , Age Factors , Contraception, Postcoital/methods , Contraceptives, Oral/supply & distribution , Female , Humans , Patient Satisfaction , Pharmacies/standards , Pharmacies/statistics & numerical data , Program Evaluation , Referral and Consultation/statistics & numerical data , Surveys and Questionnaires , Young Adult
12.
PLoS One ; 8(12): e81974, 2013.
Article in English | MEDLINE | ID: mdl-24386086

ABSTRACT

UNLABELLED: Drug-induced liver injury (DILI) is the most common cause of acute liver failure in the United-States. The aim of the study was to describe serum immune profiles associated with acute DILI, to investigate whether there are profiles associated with clinical features or types of DILI and/or with prognosis, and to assess temporal changes in levels. Twenty-seven immune analytes were measured in the sera of 78 DILI subjects in the Drug-Induced Liver Injury Network (DILIN) and compared with 40 healthy controls. Immune analytes (14 cytokines, 7 chemokines and 6 growth factors) were measured by BioPlex multiplex ELISA at DILI onset and after 6 months. A modeling process utilizing immune principles was used to select a final set of variables among 27 immune analytes and several additional clinical lab values for prediction of early death (within 6 months of DILI onset). Nineteen of the 27 immune analytes were differentially expressed among healthy control, DILI onset and 6-month cohorts. Disparate patterns of immune responses, especially innate and adaptive cellular (mostly TH17) immunity were evident. Low values of four immune analytes (IL-9, IL-17, PDGF-bb and RANTES) and serum albumin are predictive of early death [PPV = 88% (95% CI, 65%-100%), NPV = 97% (95% CI, 93%-100%), accuracy = 96% (95% CI, 92%-100%)]. CONCLUSIONS: Acute DILI is associated with robust and varying immune responses. High levels of expression of cytokines associated with innate immunity are associated with a poor prognosis, whereas high levels of expression of adaptive cytokines are associated with good long-term prognosis and eventual recovery. Serum immune analyte profiles at DILI onset appear to be of prognostic, and perhaps, diagnostic significance.


Subject(s)
Chemical and Drug Induced Liver Injury/blood , Cytokines/blood , Acute Disease , Chemical and Drug Induced Liver Injury/diagnosis , Chemical and Drug Induced Liver Injury/immunology , Cohort Studies , Enzyme-Linked Immunosorbent Assay , Humans , Immunity, Innate , Models, Immunological , Prognosis
13.
Liver Int ; 30(10): 1490-504, 2010 Nov.
Article in English | MEDLINE | ID: mdl-20825557

ABSTRACT

BACKGROUND & AIMS: MicroRNAs (miRNAs) are members of a class of small noncoding functional RNAs that modulate gene regulation at the post-transcriptional level in a sequence specific manner. miRNA dysfunction has been linked to the pathophysiology of human diseases including those resulting from viral infections. The objective of this study was to investigate changes in miRNA profiles that occur in hepatoma cells expressing hepatitis C virus (HCV) and identify anticorrelated mRNAs, which may be their regulatory targets. METHODS: Microarrays were used to perform global miRNA and mRNA expression analysis. Fold changes and pairwise statistics were computed for the resulting datasets. Hierarchical cluster and pathway analyses were performed to assess the degree of differential expression and identify regulatory networks. Bioinformatics tools were used to integrate mRNA profiling results with miRNA target predictions. RESULTS: Replication of the Con1 strain of HCV virus in hepatoma cells elicited extensive differential expression of both miRNAs and mRNAs. Forty-three differentially expressed miRNAs (P≤0.001) were identified by microarray analysis in HCV expressing cells. Six thousand eight hundred and fifteen differentially expressed mRNAs (P≤0.05) were identified. Computational analyses revealed anticorrelated miRNA:mRNA pairs for each target prediction algorithm used. Pathway analysis generated a filtered pathway with 120 entities, including seven major regulators and nine major targets potentially under the control of at least 11 miRNAs. CONCLUSIONS: The expression of a number of anticorrelated miRNAs:mRNA pairs are affected by the presence of HCV. These miRNAs and their putative targets are attractive candidates for being involved in the pathogenesis and/or progression of HCV-induced chronic hepatitis.


Subject(s)
Carcinoma, Hepatocellular/genetics , Gene Expression Profiling , Hepacivirus/pathogenicity , Hepatitis C, Chronic/genetics , Liver Neoplasms/genetics , MicroRNAs/metabolism , RNA, Messenger/metabolism , Algorithms , Carcinoma, Hepatocellular/virology , Cell Line, Tumor , Cluster Analysis , Computational Biology , Gene Expression Profiling/methods , Gene Expression Regulation , Gene Regulatory Networks , Humans , Liver Neoplasms/virology , Oligonucleotide Array Sequence Analysis , Reverse Transcriptase Polymerase Chain Reaction , Transfection
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