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1.
Clin Exp Immunol ; 205(1): 89-97, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33768526

RESUMEN

Neonatal encephalopathy (NE) is characterized by altered neurological function in term infants and inflammation plays an important pathophysiological role. Inflammatory cytokines interleukin (IL)-1ß, IL-1ra and IL-18 are activated by the nucleotide-binding and oligomerization domain (NOD)-, leucine-rich repeat domain (LRR)- and NOD-like receptor protein 3 (NLRP3) inflammasome; furthermore, we aimed to examine the role of the inflammasome multiprotein complex involved in proinflammatory responses from the newborn period to childhood in NE. Cytokine concentrations were measured by multiplex enzyme-linked immunosorbent assay (ELISA) in neonates and children with NE in the absence or presence of lipopolysaccharide (LPS) endotoxin. We then investigated expression of the NLRP3 inflammasome genes, NLRP3, IL-1ß and ASC by polymerase chain reaction (PCR). Serum samples from 40 NE patients at days 1 and 3 of the first week of life and in 37 patients at age 4-7 years were analysed. An increase in serum IL-1ra and IL-18 in neonates with NE on days 1 and 3 was observed compared to neonatal controls. IL-1ra in NE was decreased to normal levels at school age, whereas serum IL-18 in NE was even higher at school age compared to school age controls and NE in the first week of life. Percentage of LPS response was higher in newborns compared to school-age NE. NLRP3 and IL-1ß gene expression were up-regulated in the presence of LPS in NE neonates and NLRP3 gene expression remained up-regulated at school age in NE patients compared to controls. Increased inflammasome activation in the first day of life in NE persists in childhood, and may increase the window for therapeutic intervention.


Asunto(s)
Encefalopatías/inmunología , Inflamasomas/inmunología , Inflamación/inmunología , Niño , Preescolar , Citocinas/inmunología , Femenino , Humanos , Recién Nacido , Interleucina-1beta/inmunología , Lipopolisacáridos/inmunología , Masculino , Proteína con Dominio Pirina 3 de la Familia NLR/inmunología , Regulación hacia Arriba/inmunología
2.
Qual Life Res ; 30(9): 2509-2520, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-33792833

RESUMEN

BACKGROUND: Information concerning the health-related quality-of-life (HRQoL) consequences of colposcopy is limited, particularly over time. In a longitudinal study, we investigated women's HRQoL at 4, 8 and 12 months post colposcopy and the factors associated with this. METHODS: Women attending colposcopy at two large hospitals affiliated with the national screening programme in Ireland were invited to complete questionnaires at 4, 8 and 12 months post colposcopy. HRQoL was measured using the EQ-5D-3L and compared across a range of socio-demographic, clinical and attitudinal variables. A mixed-effects logistic multivariable model was employed to investigate associations between these variables and low HRQoL. RESULTS: Of 584 women initially recruited, 429, 343 and 303 completed questionnaires at 4, 8 and 12 months, respectively. The mean overall HRQoL score for the sample across all time points was 0.90 (SD 0.16). Approximately 18% of women experienced low HRQoL at each of the three time points. In multivariable testing, over the entire 12-month follow-up period, non-Irish nationals (OR 8.99, 95% CI 2.35-34.43) and women with high-grade referral cytology (OR 2.78, 95% CI 1.08-7.13) were at higher odds of low HRQoL. Women who were past (OR 0.20, 95% CI 0.07-0.58) or never (OR 0.42, 95% CI 0.16-1.12) smokers were at lower odds of low HRQoL than current smokers. As women's satisfaction with their healthcare increased their odds of experiencing low HRQoL fell (OR per unit increase 0.51, 95% CI 0.34-0.75). CONCLUSIONS: Women's HRQoL did not change over the 12 months post colposcopy, but some subgroups of women were at higher risk of experiencing low HRQoL. These subgroups may benefit from additional support.


Asunto(s)
Colposcopía , Calidad de Vida , Femenino , Humanos , Estudios Longitudinales , Embarazo , Calidad de Vida/psicología , Derivación y Consulta , Encuestas y Cuestionarios
3.
Stud Mycol ; 89: 117-124, 2018 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-29910518

RESUMEN

Understanding the mechanisms underlying wood decay basidiomycete community dynamics is crucial for fully understanding decomposition processes, and for modelling ecosystem function and resilience to environmental change. Competition drives community development in decaying woody resources, with interactions occurring at a distance, following physical contact, and through specialised relationships such as mycoparasitism. Outcomes of combative interactions range from replacement, where one mycelium displaces another, to deadlock, where neither combatant captures territory from the other; and a spectrum of intermediate outcomes (i.e. partial or mutual replacement) lie between these extremes. Many wood decay basidiomycetes coexist within a resource, in a complex and dynamic community, and new research techniques are focussing on spatial orientation of interactions in 3 dimensions, as opposed to historical two-dimensional research. Not only do interactions drive changes in species composition and thus wood decomposition rate, they also may have industrial applications in biocontrol of pathogenic or nuisance fungi, enzyme production, and in the production of novel antifungals and antibiotics. Altogether, fungal interactions are a fascinating and important field of study.

4.
Am J Gastroenterol ; 112(7): 1103-1110, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28440305

RESUMEN

OBJECTIVES: The International Ascites Club (IAC) recently defined Stage 1 acute kidney injury (AKI) for cirrhosis as an acute increase in serum creatinine (SCr) by ≥0.3 mg/dl or by ≥50% in <48 h from a stable value within 3 months. The baseline SCr may influence AKI risk and patient outcomes. The objective of this study is to determine in cirrhosis whether the baseline SCr has any effect on the in-hospital AKI course and patient survival. METHODS: North American Consortium for the Study of End-Stage Liver Disease is a consortium of tertiary-care hepatology centers prospectively enroling non-elective cirrhotic inpatients. Patients with different baseline SCr levels (≤0.5, 0.51-1.0, 1.01-1.5, >1.5 mg/dl) were evaluated for the development of AKI, and compared for AKI outcomes and 30-day survival. RESULTS: 653 hospitalized cirrhotics (56.7±10years, 64% men, 30% with infection) were included. The incidence of AKI was 47% of enrolled patients. Patients with higher baseline SCr were more likely to develop AKI, with significantly higher delta and peak SCr (P<0.001) than the other groups, more likely to have a progressive AKI course (P<0.0001), associated with a significantly reduced 30-day survival (P<0.0001). Multivariate logistic regression showed that the delta SCr during an AKI episode to be the strongest factor impacting AKI outcomes and survival (P<0.001), with a delta SCr of 0.70 mg/dl having a 68% sensitivity and 80% specificity for predicting 30-day mortality. CONCLUSIONS: Admitted cirrhotic patients with higher baseline SCr are at higher risk for in-hospital development of AKI, and more likely to have AKI progression with reduced survival. Therefore, such patients should be closely monitored and treated promptly for their AKI.


Asunto(s)
Lesión Renal Aguda/sangre , Lesión Renal Aguda/etiología , Creatinina/sangre , Cirrosis Hepática/sangre , Cirrosis Hepática/complicaciones , Biomarcadores/sangre , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Sensibilidad y Especificidad , Tasa de Supervivencia
5.
BJOG ; 124(9): 1402-1410, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28374937

RESUMEN

OBJECTIVE: To estimate prevalence of post-colposcopy physical after-effects and investigate associations between these and subsequent psychological distress. DESIGN: Longitudinal survey. SETTING: Two hospital-based colposcopy clinics. POPULATION: Women with abnormal cytology who underwent colposcopy (±related procedures). METHODS: Questionnaires were mailed to women 4, 8 and 12 months post-colposcopy. Details of physical after-effects (pain, bleeding and discharge) experienced post-colposcopy were collected at 4 months. Colposcopy-specific distress was measured using the Process Outcome-Specific Measure at all time-points. Linear mixed-effects regression was used to identify associations between physical after-effects and distress over 12 months, adjusting for socio-demographic and clinical variables. MAIN OUTCOME MEASURES: Prevalence of post-colposcopy physical after-effects. Associations between the presence of any physical after-effects, awareness of after-effects, and number of after-effects and distress. RESULTS: Five-hundred and eighty-four women were recruited (response rate = 73, 59 and 52% at 4, 8 and 12 months, respectively). Eighty-two percent of women reported one or more physical after-effect(s). Multiple physical after-effects were common (two after-effects = 25%; three after-effects = 25%). Psychological distress scores declined significantly over time. In adjusted analyses, women who experienced all three physical after-effects had on average a 4.58 (95% CI: 1.10-8.05) higher distress scored than those who experienced no after-effects. Women who were unaware of the possibility of experiencing after-effects scored significantly higher for distress during follow-up. CONCLUSIONS: The prevalence of physical after-effects of colposcopy and related procedures is high. The novel findings of inter-relationships between awareness of the possibility of after-effects and experiencing multiple after-effects, and post-colposcopy distress may be relevant to the development of interventions to alleviate post-colposcopy distress. TWEETABLE ABSTRACT: Experiencing multiple physical after-effects of colposcopy is associated with psychological distress.


Asunto(s)
Colposcopía/efectos adversos , Hemorragia/etiología , Dolor Asociado a Procedimientos Médicos/etiología , Estrés Psicológico/etiología , Enfermedades Vaginales/etiología , Adulto , Colposcopía/psicología , Femenino , Hemorragia/diagnóstico , Hemorragia/epidemiología , Hemorragia/psicología , Humanos , Modelos Lineales , Estudios Longitudinales , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Dolor Asociado a Procedimientos Médicos/diagnóstico , Dolor Asociado a Procedimientos Médicos/epidemiología , Dolor Asociado a Procedimientos Médicos/psicología , Prevalencia , Estrés Psicológico/diagnóstico , Estrés Psicológico/epidemiología , Enfermedades Vaginales/diagnóstico , Enfermedades Vaginales/epidemiología , Enfermedades Vaginales/psicología
6.
Br J Anaesth ; 119(3): 458-464, 2017 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-28969310

RESUMEN

Anaesthetic and sedative drugs transiently disrupt normal neural activity to facilitate healthcare procedures in children, but they can also cause long-term brain injury in experimental animal models. The US Food and Drug Administration (FDA) has recently advised that repeated or lengthy exposures to anaesthetic and sedative drugs prior to 3 yr of age have the potential to harm the development of children's brains and added warnings to these drug labels. Paediatric anaesthesia toxicity could represent a significant public health issue, and concern about this potential injury in children has become an important issue for families, paediatric clinicians and healthcare regulators. Since late 2015, important new data from five major clinical studies have been published. This narrative review aims to provide a brief overview of the preclinical and clinical literature, including a comprehensive review of these recent additions to the human literature. We integrate these new data with prior studies to provide further insights into how these clinical findings can be applied to children.


Asunto(s)
Anestesia General/efectos adversos , Desarrollo Infantil/efectos de los fármacos , Trastornos del Neurodesarrollo/inducido químicamente , Animales , Niño , Humanos
7.
Qual Life Res ; 26(11): 2885-2897, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28653217

RESUMEN

PURPOSE: Cost-effectiveness analyses (CEAs) of screening can be highly sensitive to the health-related quality of life (HRQoL) effects of screen tests and subsequent treatment. Accordingly, accurate assessment of HRQoL is essential. We reviewed the literature regarding HRQoL in cervical prevention and management in order to appraise the current evidence regarding this important input to CEA. METHODS: We searched the MEDLINE, Scopus and EconLit databases for studies that estimated HRQoL in cervical cancer prevention and management published January 1995-December 2015. The primary inclusion criterion was for studies that assess HRQoL using the EQ-5D. Data were abstracted from eligible studies on setting, elicitation group, sample size, elicitation instruments, health state valuations, study design and follow-up. We assessed the quality and comparability of the studies with a particular focus on the HRQoL reported across states and groups. RESULTS: Fifteen papers met the inclusion criteria. Most used patient elicitation groups (n = 11), 2 used the general public and 2 used a mix of both. Eight studies were cross-sectional and seven were longitudinal. Six studies used both the EQ-5D-3L and the EQ-VAS together with other measures of overall HRQoL or condition-specific instruments. Extensive heterogeneity was observed across study characteristics. CONCLUSIONS: Our results reveal the challenges of sourcing reliable estimates of HRQoL for use in CEAs of cervical cancer prevention and treatment. The EQ-5D appears insufficiently sensitive for some health states. A more general problem is the paucity of HRQoL estimates for many health states and their change over time.


Asunto(s)
Análisis Costo-Beneficio/métodos , Calidad de Vida/psicología , Enfermedades del Cuello del Útero , Estudios Transversales , Femenino , Humanos , Tamizaje Masivo , Proyectos de Investigación , Encuestas y Cuestionarios , Enfermedades del Cuello del Útero/diagnóstico , Enfermedades del Cuello del Útero/patología , Enfermedades del Cuello del Útero/prevención & control , Enfermedades del Cuello del Útero/terapia
8.
BMC Palliat Care ; 16(1): 33, 2017 May 18.
Artículo en Inglés | MEDLINE | ID: mdl-28521799

RESUMEN

BACKGROUND: The purpose of this study was to compare the differences across occupational groups related to their end-of-life care-specific educational needs and reported intensity of interprofessional collaboration in long-term care (LTC) homes. METHODS: A cross-sectional survey, based on two questionnaires, was administered at four LTC homes in Ontario, Canada using a modified Dilman's approach. The first questionnaire, End of Life Professional Caregiver Survey, included three domains: patients and family-centered communication, cultural and ethical values, effective care delivery. The Intensity of Interprofessional Collaboration Scale included two subscales: care sharing activities, and interprofessional coordination. In total, 697 LTC staff were given surveys, including personal support workers, support staff (housekeeping, kitchen, recreation, laundry, dietician aids, office staff), and registered staff (licensed nurses, physiotherapists, social workers, pharmacists, physicians). RESULTS: A total of 317 participants completed the survey (126 personal support workers, 109 support staff, 82 registered staff) for a response rate of 45%. Significant differences emerged among occupational groups across all scales and subscales. Specifically, support staff rated their comfort of working with dying patients significantly lower than both nurses and PSWs. Support staff also reported significantly lower ratings of care sharing activities and interprofessional coordination compared to both registered staff and personal support workers. CONCLUSIONS: These study findings suggest there are differing educational needs and sense of interprofessional collaboration among LTC staff, specific to discipline group. Both the personal support workers and support staff groups appeared to have higher needs for education; support staff also reported higher needs related to integration on the interdisciplinary team. Efforts to build capacity within support staff related to working with dying residents and their families are needed. Optimal palliative care may require resources to increase the availability of support for all staff involved in the care of patients.


Asunto(s)
Evaluación de Necesidades , Ocupaciones , Cuidados Paliativos/métodos , Educación del Paciente como Asunto/métodos , Adulto , Estudios Transversales , Femenino , Humanos , Relaciones Interprofesionales , Cuidados a Largo Plazo , Masculino , Persona de Mediana Edad , Casas de Salud , Ontario , Psicometría/instrumentación , Psicometría/métodos , Encuestas y Cuestionarios , Recursos Humanos
9.
Int J Cosmet Sci ; 39(6): 589-599, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28733999

RESUMEN

OBJECTIVE: To evaluate a combination of retinyl propionate and climbazole (RPC) compared to 0.1% retinol for its efficacy, tolerance and ageing appearance. METHOD: Forty-five healthy Caucasian females, ages 40-70, with moderately photodamaged facial skin, were recruited for a 16-week randomized, double-blind, IRB-approved facial study. The efficacy of RPC treatment was compared to 0.1% retinol, in the same product base formulation, with twice daily, split-face product application. Changes in overall photodamage, fine lines and wrinkles, pigmentation and irritation were visually evaluated and measured by instrumentation. Subjective appraisal of efficacy was self-assessed from images where subjects were blinded to treatment and time point. Irritancy potential was also evaluated in a 5-day randomized, double-blind, IRB-approved patch study. RESULTS: Treatment with RPC resulted in significant (P < 0.05) improvement in ageing attributes compared to 0.1% retinol treatment, with minimal irritation. More than 50% of subjects showed improvement to deep wrinkles in the crow's feet area after 5 weeks of product application, and continued improvement to deep wrinkles was observed throughout the course of the study. Similarly, improvement was observed for the appearance of lines and wrinkles in the nasolabial fold (NLF) and for mottled hyperpigmentation. The results from subjective self-assessment confirmed in vivo clinical assessments. In a separate patch study, significantly less irritation was observed with the RPC product as compared to the 0.1% retinol control product. CONCLUSION: RPC delivered significant skin anti-ageing benefits comparable or greater than 0.1% retinol, with minimal irritation.


Asunto(s)
Hiperpigmentación/tratamiento farmacológico , Imidazoles/administración & dosificación , Envejecimiento de la Piel/efectos de los fármacos , Vitamina A/análogos & derivados , Adulto , Diterpenos , Método Doble Ciego , Quimioterapia Combinada , Femenino , Humanos , Imidazoles/efectos adversos , Masculino , Persona de Mediana Edad , Ésteres de Retinilo , Vitamina A/administración & dosificación , Vitamina A/efectos adversos , Adulto Joven
10.
Am J Transplant ; 16(9): 2532-44, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-26932352

RESUMEN

Both acute and chronic kidney disease are common after liver transplantation and result in significant morbidity and mortality. The introduction of the Model for End-stage Liver Disease score has directly correlated with an increased prevalence of perioperative renal dysfunction and the number of simultaneous liver-kidney transplantations performed. Kidney dysfunction in this population is typically multifactorial and related to preexisting conditions, pretransplantation renal injury, perioperative events, and posttransplantation nephrotoxic immunosuppressive therapies. The management of kidney disease after liver transplantation is challenging, as by the time the serum creatinine level is significantly elevated, few interventions affect the course of progression. Also, immunological factors such as antibody-mediated kidney rejection have become of greater interest given the rising liver-kidney transplant population. Therefore, this review, assembled by experts in the field and endorsed by the American Society of Transplantation Liver and Intestine Community of Practice, provides a critical assessment of measures of renal function and interventions aimed at preserving renal function early and late after liver and simultaneous liver-kidney transplantation. Key points and practice-based recommendations for the prevention and management of kidney injury in this population are provided to offer guidance for clinicians and identify gaps in knowledge for future investigations.


Asunto(s)
Intestinos/trasplante , Fallo Renal Crónico/prevención & control , Trasplante de Hígado/efectos adversos , Guías de Práctica Clínica como Asunto/normas , Humanos , Fallo Renal Crónico/etiología , Sociedades Médicas
11.
Am J Transplant ; 16(9): 2516-31, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-26990924

RESUMEN

Acute kidney injury (AKI) and chronic kidney disease (CKD) are common in patients awaiting liver transplantation, and both have a marked impact on the perioperative and long-term morbidity and mortality of liver transplant recipients. Consequently, we reviewed the epidemiology of AKI and CKD in patients with end-stage liver disease, highlighted strategies to prevent and manage AKI, evaluated the changing liver transplant waiting list's impact on kidney function, delineated important considerations in simultaneous liver-kidney transplant selection, and projected possible future transplant policy changes and outcomes. This review was assembled by experts in the field and endorsed by the American Society of Transplantation Liver and Intestinal Community of Practice and Board of Directors and provides practice-based recommendations for preservation of kidney function in patients with end-stage liver disease.


Asunto(s)
Intestinos , Fallo Renal Crónico/prevención & control , Trasplante de Hígado/efectos adversos , Guías de Práctica Clínica como Asunto/normas , Humanos , Fallo Renal Crónico/etiología , Sociedades Científicas
12.
Am J Transplant ; 16(2): 603-14, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26469278

RESUMEN

Donor-specific alloantibodies (DSA) can cause acute antibody-mediated rejection (AMR) in all solid organ allografts. However, long-term outcome in patients with posttransplant DSA needs further study. We retrospectively evaluated prospectively collected paired serum, tissue, and data on 45 matched DSA- positive [DSA+; mean florescence intensity (MFI) ≥10,000] and -negative (DSA-) recipients of a primary liver-only allograft from January 2000 to April 2009. Blinded histopathologic evaluation demonstrated that DSA+ versus DSA- patients were more likely to have subtle inflammation and unique patterns of fibrosis, despite normal or near-normal liver function tests. Stepwise multivariable modeling developed a score (putatively named the chronic AMR [cAMR] score) that included interface activity, lobular inflammation, portal tract collagenization, portal venopathy, sinusoidal fibrosis, and hepatitis C virus status. The score was developed (c = 0.811) and cross-validated (c = 0.704) to predict allograft failure. Two cutoffs were employed to optimize sensitivity and specificity (80% each); a value >27.5 predicted 50% 10-year allograft failure. We propose chronic AMR as a potential new entity defined by (1) a high cAMR score, (2) DSA, and (3) elimination of other potential causes of a similar injury pattern. In conclusion, cAMR score calculation identified liver allograft recipients with DSA at highest risk for allograft loss, although independent validation is needed.


Asunto(s)
Enfermedad Hepática en Estado Terminal/cirugía , Rechazo de Injerto/diagnóstico , Isoanticuerpos/sangre , Trasplante de Hígado/efectos adversos , Complicaciones Posoperatorias , Aloinjertos , Estudios de Casos y Controles , Femenino , Estudios de Seguimiento , Rechazo de Injerto/sangre , Rechazo de Injerto/inmunología , Supervivencia de Injerto , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Estudios Retrospectivos , Factores de Riesgo
13.
Am J Transplant ; 16(10): 2816-2835, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27273869

RESUMEN

The Banff Working Group on Liver Allograft Pathology reviewed and discussed literature evidence regarding antibody-mediated liver allograft rejection at the 11th (Paris, France, June 5-10, 2011), 12th (Comandatuba, Brazil, August 19-23, 2013), and 13th (Vancouver, British Columbia, Canada, October 5-10, 2015) meetings of the Banff Conference on Allograft Pathology. Discussion continued online. The primary goal was to introduce guidelines and consensus criteria for the diagnosis of liver allograft antibody-mediated rejection and provide a comprehensive update of all Banff Schema recommendations. Included are new recommendations for complement component 4d tissue staining and interpretation, staging liver allograft fibrosis, and findings related to immunosuppression minimization. In an effort to create a single reference document, previous unchanged criteria are also included.


Asunto(s)
Rechazo de Injerto/etiología , Rechazo de Injerto/patología , Isoanticuerpos/inmunología , Trasplante de Hígado/efectos adversos , Aloinjertos , Humanos , Informe de Investigación
14.
BJOG ; 123(1): 24-38, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26099164

RESUMEN

BACKGROUND: Although colposcopy is the leading follow-up option for women with abnormal cervical cytology, little is known about its psychological consequences. OBJECTIVES: We performed a systematic review to examine: (1) what, if any, are the adverse psychological outcomes following colposcopy and related procedures; (2) what are the predictors of adverse psychological outcomes post-colposcopy; and (3) what happens to these outcomes over time. SEARCH STRATEGY: Five electronic databases (PubMed, PsychINFO, CINAHL, Web of Science, Scopus) were searched for studies published in English between January 1986 and February 2014. SELECTION CRITERIA: Eligible studies assessed psychological wellbeing at one or more time-points post-colposcopy. DATA COLLECTION AND ANALYSIS: Two reviewers independently screened titles and abstracts. Full texts of potentially eligible papers were reviewed. Data were abstracted from, and a quality appraisal performed of, eligible papers. MAIN RESULTS: Twenty-three papers reporting 16 studies were eligible. Colposcopy and related procedures can lead to adverse psychological outcomes, particularly anxiety. Ten studies investigated predictors of adverse psychological outcomes; management type and treatment had no impact on this. Seven studies investigated temporal trends in psychological outcomes post-colposcopy; findings were mixed, especially in relation to anxiety and distress. Studies were methodologically heterogeneous. CONCLUSIONS: Follow-up investigations and procedures for abnormal cervical cytology can cause adverse psychological outcomes among women. However, little is known about the predictors of these outcomes or how long they persist. There is a need for a more standardised approach to the examination of the psychological impact of colposcopy, especially longer-term outcomes. TWEETABLE ABSTRACT: Follow-up investigations for abnormal cervical cytology can cause adverse psychological outcome among women.


Asunto(s)
Ansiedad/etiología , Colposcopía/psicología , Detección Precoz del Cáncer/psicología , Estrés Psicológico/etiología , Displasia del Cuello del Útero/psicología , Neoplasias del Cuello Uterino/psicología , Detección Precoz del Cáncer/instrumentación , Femenino , Humanos , Neoplasias del Cuello Uterino/patología , Displasia del Cuello del Útero/patología
15.
Cytopathology ; 27(4): 269-76, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26932360

RESUMEN

OBJECTIVE: To investigate human papillomavirus (HPV) DNA testing and p16/Ki-67 staining for detecting cervical intraepithelial grade 2 or worse (CIN2+) and CIN3 in women referred to colposcopy with minor abnormal cervical cytology low-grade squamous intraepithelial lesions (LSIL) and atypical squamous cells of undermined significance (ASC-US). The clinical performance of both tests was evaluated as stand-alone tests and combined, for detection CIN2+ and CIN3 over 2 years. METHODS: ThinPrep(®) liquid-based cytology (LBC) specimens were collected from 1349 women with repeat LSIL or ASC-US. HPV DNA was performed using Hybrid Capture. Where adequate material remained (n = 471), p16/Ki-67 overexpression was assessed. Clinical performance for detection of histologically diagnosed CIN2+ and CIN3 was calculated. RESULTS: Approximately 62.2% of the population were positive for HPV DNA, and 30.4% were positive for p16/Ki-67. p16/Ki-67 showed no significant difference in positivity between LSIL and ASC-US referrals (34.3% versus 28.6%; P = 0.189). Women under 30 years had a higher rate of p16/Ki-67 compared to those over 30 years (36.0% versus 26.6%; P = 0.029). Overall HPV DNA testing produced a high sensitivity for detection of CIN3 of 95.8% compared to 79.2% for p16/Ki-67. In contrast, p16/Ki-67 expression offered a higher specificity, 75.2% versus 40.4% for detection of CIN3. Combining p16/Ki-67 with HPV DNA improved the accuracy in distinguishing between CIN3 and

Asunto(s)
Inhibidor p16 de la Quinasa Dependiente de Ciclina/biosíntesis , Antígeno Ki-67/biosíntesis , Lesiones Intraepiteliales Escamosas de Cuello Uterino/diagnóstico , Displasia del Cuello del Útero/diagnóstico , Adulto , Células Escamosas Atípicas del Cuello del Útero/patología , Colposcopía , Inhibidor p16 de la Quinasa Dependiente de Ciclina/genética , Citodiagnóstico , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Antígeno Ki-67/genética , Persona de Mediana Edad , Clasificación del Tumor , Papillomaviridae/aislamiento & purificación , Papillomaviridae/patogenicidad , Infecciones por Papillomavirus/diagnóstico , Infecciones por Papillomavirus/genética , Infecciones por Papillomavirus/patología , Infecciones por Papillomavirus/virología , Embarazo , Lesiones Intraepiteliales Escamosas de Cuello Uterino/genética , Lesiones Intraepiteliales Escamosas de Cuello Uterino/patología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/virología , Frotis Vaginal , Adulto Joven , Displasia del Cuello del Útero/genética , Displasia del Cuello del Útero/patología , Displasia del Cuello del Útero/virología
16.
Am J Transplant ; 15(4): 1003-13, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25772599

RESUMEN

Recent literature confirms donor-specific HLA alloantibodies (DSA) impair 5-year survival in some but not all liver transplant recipients. In an effort to improve DSA testing's association with rejection and death, we retrospectively evaluated 1270 liver transplant recipients for the presence of IgG3 and C1q-fixing DSA. In patients with preformed DSA, 29 and 51% had IgG3 and C1q-fixing DSA, respectively. In patients with de novo DSA, 62% and 67% had IgG3 and C1q-fixing DSA, respectively. When different types of DSA positive patients were compared to DSA negative patients, multivariable analysis showed that IgG3 DSA positivity had the highest numerical hazard ratio for death (IgG3: HR = 2.4, p < 0.001; C1q: HR = 1.9, p < 0.001; standard DSA: HR = 1.6, p < 0.001). Similarly, multivariable analysis demonstrated de novo IgG3 DSA positivity compared to no DSA had the highest hazard ratio for death (IgG3: HR = 2.1, p = 0.004; C1q: HR = 1.9, p = 0.02; standard DSA: HR = 1.8, p = 0.007). Preformed C1q-fixing class II DSA showed the strongest correlation with early rejection. In conclusion, preformed and de novo IgG3 subclass DSA positive patients had the highest absolute HR for death in side-by-side comparison with C1q and standard DSA positive versus DSA negative patients; however, IgG3 negative DSA positive patients still had inferior outcomes compared to DSA negative patients.


Asunto(s)
Complemento C1q/inmunología , Rechazo de Injerto/inmunología , Supervivencia de Injerto/inmunología , Antígenos HLA/inmunología , Inmunoglobulina G/inmunología , Isoanticuerpos/inmunología , Trasplante de Hígado , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad
17.
Am J Transplant ; 14(4): 779-87, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24580828

RESUMEN

The impact of donor-specific HLA alloantibodies (DSA) on short- and long-term liver transplant outcome is not clearly defined. While it is clear that not all levels of allosensitization produce overt clinical injury, and that liver allografts possess some degree of alloantibody resistance, alloantibody-mediated adverse consequences are increasingly being recognized. To better define the current state of this topic, we assembled experts to provide insights, explore controversies and develop recommendations for future research on the consequences of DSA in liver transplantation. This article summarizes the proceedings of this inaugural meeting. Several insights emerged. Acute antibody-mediated rejection (AMR), although rarely diagnosed, is increasingly understood to overlap with T cell-mediated rejection. Isolated liver allograft recipients are at increased risk of early allograft immunologic injury when preformed DSA are high titer and persist posttransplantation. Persons who undergo simultaneous liver-kidney transplantation are at risk of renal AMR when Class II DSA persist posttransplantation. Other under-appreciated DSA associations include ductopenia and fibrosis, plasma cell hepatitis, biliary strictures and accelerated fibrosis associated with recurrent liver disease. Standardized DSA testing and diagnostic criteria for both acute and chronic AMR are needed to distil existing associations into etiological processes in order to develop responsive therapeutic strategies.


Asunto(s)
Rechazo de Injerto/inmunología , Antígenos HLA/inmunología , Isoanticuerpos/inmunología , Hepatopatías/inmunología , Trasplante de Hígado , Guías de Práctica Clínica como Asunto , Donantes de Tejidos , Humanos , Hepatopatías/cirugía , Pronóstico , Informe de Investigación
18.
HIV Med ; 15(8): 499-504, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24655896

RESUMEN

OBJECTIVES: The incidence of human papillomavirus (HPV)-associated anal cancer is increasing. Men who have sex with men (MSM), particularly those coinfected with HIV, are disproportionately affected. Documenting the molecular epidemiology of HPV infection is important in guiding policy makers in formulating universal and/or targeted vaccine guidelines. METHODS: A prospective cohort study was conducted. HIV-positive and HIV-negative MSM > 18 years old were invited to participate. Provider-performed anal swabs were collected and anal HPV infection was detected using consensus primer solution phase polymerase chain reaction (PCR) followed by type-specific PCR for high-risk (HR)-HPV types 16, 18 and 31. Between-group differences were analysed using χ(2) tests and Wilcoxon rank tests. RESULTS: One hundred and ninety-four MSM [mean (standard deviation (SD)) age 36 (10) years; 51% HIV-positive) were recruited. The median number of sexual contacts in the preceding 12 months was 4 (interquartile range 2-10). HIV-positive subjects had a mean (SD) CD4 count of 557 (217) cells/µL, and 84% were on highly active antiretroviral therapy (HAART). Thirty-one samples were B-globin negative and thus excluded from further analysis. A total of 113 subjects (69%) had detectable HPV DNA. Sixty-eight subjects (42%) had an HR-HPV type detected. HR HPV type 16 was detected in 44 samples (27%), HR-HPV type 18 in 26 samples (16%) and HR-HPV type 31 in 14 samples (23%). Twenty-eight subjects (17%) had more than one type of HR-HPV type detected. When HPV and HR-HPV were stratified by age, those > 35 years had a higher prevalence (P = 0.001 and P = 0.028, respectively). HIV-positive subjects were more likely than HIV-negative subjects to have any detectable HPV (77% vs. 61%, respectively; P = 0.04), to have HR-HPV type 18 or 31 (P = 0.05 and P = 0.006, respectively) and to be infected with more than one HR-HPV type (31% vs. 3%, respectively; P < 0.001). Within the HIV-positive group, the prevalence of HPV was higher in those not on HAART (P = 0.041), although it did not differ when stratified by CD4 count. CONCLUSIONS: The identified prevalence of anal HPV infection was high. Emerging patterns of HPV-related disease strengthen the call for universal vaccination of boys and girls with consideration of catch-up and targeted vaccination of high-risk groups such as MSM and those with HIV infection.


Asunto(s)
Homosexualidad Masculina , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/epidemiología , Adulto , Canal Anal/virología , Estudios de Cohortes , ADN Viral/genética , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Epidemiología Molecular , Reacción en Cadena de la Polimerasa , Prevalencia , Estudios Prospectivos
19.
BJOG ; 121(11): 1421-9, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24690225

RESUMEN

OBJECTIVE: To explore emotional responses, and predictors of negative reactions, among women undergoing human papillomavirus (HPV) tests in routine clinical practice. DESIGN: Exploratory qualitative interview study. SETTING: A large busy colposcopy clinic in a Dublin hospital. SAMPLE: Twenty-seven women who had had an HPV DNA test in the previous 6 months following one or more low-grade cytology tests or treatment for cervical intraepithelial neoplasia (CIN). METHODS: In-depth semi-structured interviews were conducted. Interview transcripts were analysed using a thematic approach (Framework Analysis). MAIN OUTCOME MEASURES: Women's emotional responses and predictors of negative emotional reactions. RESULTS: For most women, having a test for high-risk HPV types generated little negative or positive emotional impact. Adverse emotional responses related to HPV infection rather than testing. Factors that influenced whether women experienced negative emotional responses were: concerns over abnormal cytology or diagnosis of CIN; HPV knowledge; awareness of HPV being sexually transmitted; awareness of HPV prevalence; and HPV information needs. Women's concerns about abnormal cytology/CIN dominated all other issues. CONCLUSIONS: These qualitative data suggest that in the context of follow up of abnormal cytology or treatment for CIN, the emotional impact of HPV testing may be modest: women's primary concerns at this time relate to abnormal cytology/CIN.


Asunto(s)
Ansiedad , Colposcopía , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/psicología , Displasia del Cuello del Útero/psicología , Neoplasias del Cuello Uterino/psicología , Adolescente , Adulto , Colposcopía/psicología , Consejo , Emociones , Femenino , Estudios de Seguimiento , Conocimientos, Actitudes y Práctica en Salud , Humanos , Irlanda , Tamizaje Masivo/psicología , Persona de Mediana Edad , Infecciones por Papillomavirus/diagnóstico , Lesiones Precancerosas/psicología , Valor Predictivo de las Pruebas , Investigación Cualitativa , Encuestas y Cuestionarios , Neoplasias del Cuello Uterino/diagnóstico , Frotis Vaginal/métodos , Displasia del Cuello del Útero/diagnóstico
20.
Am J Transplant ; 13(6): 1541-8, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23721554

RESUMEN

The role of de novo donor-specific HLA antibodies (DSA) in liver transplantation remains unknown as most of the previous studies have only focused on preformed HLA antibodies. To understand the significance of de novo DSA, we designed a retrospective cohort study of 749 adult liver transplant recipients with pre- and posttransplant serum samples that were analyzed for DSA. We found that 8.1% of patients developed de novo DSA 1 year after transplant; almost all de novo DSAs were against HLA class II antigens, and the majority were against DQ antigens. In multivariable modeling, the use of cyclosporine (as opposed to tacrolimus) and low calcineurin inhibitor levels increased the risk of de novo DSA formation, while a calculated MELD score >15 at transplant and recipient age >60 years old reduced the risk. Multivariable analysis also demonstrated that patients with de novo DSA at 1-year had significantly lower patient and graft survival. In conclusion, we demonstrate that de novo DSA development after liver transplantation is an independent risk factor for patient death and graft loss.


Asunto(s)
Rechazo de Injerto/epidemiología , Supervivencia de Injerto/inmunología , Antígenos HLA/inmunología , Trasplante de Hígado/inmunología , Donantes de Tejidos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Femenino , Rechazo de Injerto/inmunología , Antígenos HLA/sangre , Prueba de Histocompatibilidad , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Estados Unidos/epidemiología , Adulto Joven
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