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1.
Gene Ther ; 24(12): 787-800, 2017 12.
Artículo en Inglés | MEDLINE | ID: mdl-28872643

RESUMEN

There is much debate on the adeno-associated virus (AAV) serotype that best targets specific retinal cell types and the route of surgical delivery-intravitreal or subretinal. This study compared three of the most efficacious AAV vectors known to date in a mouse model of retinal degeneration (rd1 mouse) and macaque and human retinal explants. Green fluorescent protein (GFP) driven by a ubiquitous promoter was packaged into three AAV capsids: AAV2/8(Y733F), AAV2/2(quad Y-F) and AAV2/2(7m8). Overall, AAV2/2(7m8) transduced the largest area of retina and resulted in the highest level of GFP expression, followed by AAV2/2(quad Y-F) and AAV2/8(Y733F). AAV2/2(7m8) and AAV2/2(quad Y-F) both resulted in similar patterns of transduction whether they were injected intravitreally or subretinally. AAV2/8(Y733F) transduced a significantly smaller area of retina when injected intravitreally compared with subretinally. Retinal ganglion cells, horizontal cells and retinal pigment epithelium expressed relatively high levels of GFP in the mouse retina, whereas amacrine cells expressed low levels of GFP and bipolar cells were infrequently transduced. Cone cells were the most frequently transduced cell type in macaque retina explants, whereas Müller cells were the predominant transduced cell type in human retinal explants. Of the AAV serotypes tested, AAV2/2(7m8) was the most effective at transducing a range of cell types in degenerate mouse retina and macaque and human retinal explants.


Asunto(s)
Dependovirus/genética , Recombinación Genética , Retina/metabolismo , Tropismo Viral/genética , Animales , Modelos Animales de Enfermedad , Vectores Genéticos , Humanos , Inyecciones Intravítreas , Macaca , Ratones , Regiones Promotoras Genéticas , Retina/citología , Retina/virología , Degeneración Retiniana/genética , Células Ganglionares de la Retina/metabolismo , Epitelio Pigmentado de la Retina/metabolismo , Ensamble de Virus
2.
Ir Med J ; 107(1): 11-4, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24592639

RESUMEN

Organ Donation following the Circulatory determination of Death was introduced in Beaumont Hospital during 2011. The Intensive Care Society of Ireland formally endorsed a national DCD clinical practice guideline in 2012. This retrospective audit covers a 2-year period during which eleven patients were considered suitable for DCD and where consent was obtained. Nine patients died within the ninety-minute period following the withdrawal of life sustaining therapies and subsequently donated organs (82%). Eighteen kidneys were recovered and seventeen patients received renal transplants--one patient received a nephron-dosing dual renal transplant. Lungs were recovered on two occasions and one patient received a lung transplant. Heart valves were recovered on one occasion. To date sixteen of seventeen recipient patients have functioning renal transplants (94%). In conclusion, this model of deceased donation has proven acceptable to families, nursing and medical staff and the outcomes reported are consistent with international best practice.


Asunto(s)
Trasplante de Riñón , Obtención de Tejidos y Órganos , Adulto , Muerte , Femenino , Válvulas Cardíacas/trasplante , Humanos , Trasplante de Pulmón , Masculino , Auditoría Médica , Persona de Mediana Edad , Obtención de Tejidos y Órganos/organización & administración , Resultado del Tratamiento
3.
Ir Med J ; 107(2): 50-1, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24654485

RESUMEN

Renal artery aneurysms (RAA) are the second most common visceral artery aneurysm. In cases of rupture they pose a significant and emergent surgical challenge. Extracorporeal arterial reconstruction and autotransplantation is often necessary in certain complex cases that are not amenable to aneurysm repair in vivo. We report a case of a 35 year old female with a RAA in a solitary functioning kidney, requiring ex vivo reconstruction and autotransplantation to the iliac vessels.


Asunto(s)
Aneurisma Roto/cirugía , Trasplante de Riñón/métodos , Arteria Renal , Adulto , Aneurisma Roto/diagnóstico por imagen , Angiografía , Femenino , Humanos , Trasplante Autólogo
4.
Clin Transplant ; 27(6): E665-8, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24125166

RESUMEN

OBJECTIVE: To review the incidence and long-term outcomes of squamous cell carcinoma (SCC) of the bladder in patients after kidney transplantation. METHODS: Between January 1976 and March 2013, five patients from one center (0.0013%) developed SCC of the bladder after undergoing a deceased donor kidney transplant. Their relevant risk factors included long-term self-intermittent catheterization/indwelling catheter (n = 2), smoking history (n = 2), and a prior history of cyclophosphamide treatment for vasculitis (n = 1). Primary outcome variables were overall patient survival and latency period between transplantation and SCC diagnosis. RESULTS: The duration of long-term follow-up was 94 ± 89 (range: 4-239) months. The latency period between transplantation and bladder SCC was 87 ± 87 (range: 2-228) months, and all five patients were immunosuppressed with tacrolimus, mycophenolate mofetil, and prednisone. Four patients had suspected metastases upon presentation, and one patient presented with organ-confined disease. This patient underwent a radical cystectomy and remains disease free eight months post-operatively. Despite radical treatment, the remaining four patients died from metastatic disease 7 ± 4.4 (range: 2-11) months after their initial diagnosis. CONCLUSION: SCC of the bladder has a poor prognosis particularly in renal transplant patients. Early detection with flexible cystourethroscopy in patients with risk factors for SCC may improve long-term outcomes in this patient cohort.


Asunto(s)
Carcinoma de Células Escamosas/epidemiología , Trasplante de Riñón , Neoplasias de la Vejiga Urinaria/epidemiología , Adolescente , Adulto , Anciano , Cadáver , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/etiología , Preescolar , Femenino , Estudios de Seguimiento , Rechazo de Injerto/diagnóstico , Rechazo de Injerto/etiología , Humanos , Inmunosupresores , Incidencia , Irlanda/epidemiología , Fallo Renal Crónico/cirugía , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Pronóstico , Estudios Retrospectivos , Donantes de Tejidos , Neoplasias de la Vejiga Urinaria/diagnóstico , Neoplasias de la Vejiga Urinaria/etiología
5.
AIDS Care ; 25(3): 364-77, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-22774796

RESUMEN

The purpose of this study was to investigate the effects of stressful life events (SLE) on medication adherence (3 days, 30 days) as mediated by sense of coherence (SOC), self-compassion (SCS), and engagement with the healthcare provider (eHCP) and whether this differed by international site. Data were obtained from a cross-sectional sample of 2082 HIV positive adults between September 2009 and January 2011 from sites in Canada, China, Namibia, Puerto Rico, Thailand, and US. Statistical tests to explore the effects of stressful life events on antiretroviral medication adherence included descriptive statistics, multivariate analysis of variance, analysis of variance with Bonferroni post-hoc analysis, and path analysis. An examination by international site of the relationships between SLE, SCS, SOC, and eHCP with adherence (3 days and 30 days) indicated these combined variables were related to adherence whether 3 days or 30 days to different degrees at the various sites. SLE, SCS, SOC, and eHCP were significant predictors of adherence past 3 days for the United States (p = < 0.001), Canada (p = 0.006), and Namibia (p = 0.019). The combined independent variables were significant predictors of adherence past 30 days only in the United States and Canada. Engagement with the provider was a significant correlate for antiretroviral adherence in most, but not all, of these countries. Thus, the importance of eHCP cannot be overstated. Nonetheless, our findings need to be accompanied by the caveat that research on variables of interest, while enriched by a sample obtained from international sites, may not have the same relationships in each country.


Asunto(s)
Acontecimientos que Cambian la Vida , Cumplimiento de la Medicación/psicología , Relaciones Profesional-Paciente , Adulto , Fármacos Anti-VIH/uso terapéutico , Canadá , China , Estudios Transversales , Femenino , Infecciones por VIH/tratamiento farmacológico , Humanos , Masculino , Cumplimiento de la Medicación/estadística & datos numéricos , Persona de Mediana Edad , Análisis Multivariante , Namibia , Puerto Rico , Encuestas y Cuestionarios , Tailandia , Estados Unidos
6.
Surgeon ; 11(6): 300-3, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23877024

RESUMEN

INTRODUCTION: Our institution is a 680-bed tertiary referral centre with broad medical and surgical subspecialty services. We retrospectively audited the pattern of inpatient consultations from all specialities within our institution to the urology department over a 1-year period. METHODS: All consultations to the urology service were identified from our computerised inpatient consultation system from July 2010 to June 2011. Follow up data on investigations, interventions and subsequent outpatient appointments were also identified by review of individual patient discharge letters. RESULTS: Seven hundred and twenty five inpatient consultations were received over the period. The male to female ratio was 7:3. Mean age of patients was 66 (15-96) years. Seventy three percent of referrals were from medical sub-specialities, most commonly nephrology (17%), gastroenterology (11%) and respiratory medicine (9%). The remainder were from general surgery (16%) and other surgical sub specialities (11%). Interns (66%) and senior house officers (SHO) (28%) communicated the majority of consults. Male lower urinary tract/benign prostate related issues resulted in 25% of all consultations. Less than half of consults (47%) resulted in interventions initiated by urology, most commonly of which were catheter insertions (48%) and endoscopic procedures (35%). Only 43% of consultations were followed up in the outpatients setting. CONCLUSIONS: Inpatient consultations constitute a significant workload for urology services. The majority of these referrals did not require any urological intervention and could have been seen routinely in the outpatient setting. Providing structured referral guidelines and achieving better communication with referring teams may help to optimise this service.


Asunto(s)
Pacientes Internos , Medicina/estadística & datos numéricos , Derivación y Consulta/estadística & datos numéricos , Centros de Atención Terciaria , Enfermedades Urológicas/diagnóstico , Urología/métodos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Citas y Horarios , Femenino , Humanos , Irlanda , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Carga de Trabajo , Adulto Joven
7.
Am J Transplant ; 12(12): 3289-95, 2012 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22947033

RESUMEN

There have been few studies of patients with renal allografts functioning for more than 20 years. We sought to identify clinical factors associated with ultra long-term (>20 year) renal allograft survival and to describe the clinical features of these patients. We performed a retrospective analysis of the Irish Renal Transplant Database and included 1174 transplants in 1002 patients. There were 255 (21.74%) patients with graft function for 20 years or more. Multivariate analysis identified recipient age (HR 1.01, CI 1.01-1.02), gender (male HR 1.25, CI 1.08-1.45), acute rejection (HR 1.26, CI 1.09-1.45) and transplant type (living related donor vs. deceased donor) (HR 0.52, CI 0.40-0.66) as significantly associated with long-term graft loss. Median serum creatinine was 115 µmol/L. The 5-year graft survival in 20-year survivors was 74.7%. The mean age at death was 62.7 years (±10.6). The most common causes of death were cardiovascular disease and malignancy. The two major causes of graft loss were death (with function) and interstitial fibrosis/tubular atrophy. Comorbidities included skin cancer (36.1%), coronary heart disease (17.3%) and other malignancies (14.5%). This study identifies factors associated with long-term allograft survival and a high rate of morbidity and early mortality in long-term transplant recipients.


Asunto(s)
Rechazo de Injerto/mortalidad , Supervivencia de Injerto , Trasplante de Riñón/mortalidad , Sobrevivientes/estadística & datos numéricos , Adulto , Comorbilidad , Femenino , Humanos , Donadores Vivos , Masculino , Estudios Retrospectivos , Factores de Riesgo , Tasa de Supervivencia , Factores de Tiempo
8.
Clin Oncol (R Coll Radiol) ; 33(10): 627-637, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-34092462

RESUMEN

AIMS: To report late toxicity and long-term outcomes of intensity-modulated radiotherapy (IMRT)-based stereotactic ablative body radiotherapy (SABR) in patients with ultra-central lung tumours. MATERIALS AND METHODS: This is a single-institution retrospective analysis of patients treated with SABR for ultra-central tumours between May 2008 and April 2016. Ultra-central location was defined as tumour (GTV) abutting or involving trachea, main or lobar bronchi. Respiratory motion management and static-field dynamic-IMRT were used, with dose prescribed homogeneously (maximum <120%). Descriptive analysis, Kaplan-Meier method, log-rank test and Cox regression were used to assess outcomes. RESULTS: Sixty-five per cent of patients had inoperable primary non-small cell lung cancer and 35% had lung oligometastases. The median age was 72 (range 34-85) years. The median gross tumour volume and planning target volume (PTV) were 19.6 (range 1.7-203.3) cm3 and 57.4 (range 7.7-426.6) cm3, respectively. The most commonly used dose fractionation was 60 Gy in eight fractions (n = 51, 87.8%). Median BED10 for D98%PTV and D2%PTV were 102.6 Gy and 115.06 Gy, respectively. With a median follow-up of 26.5 (range 3.2-100.5) months, fatal haemoptysis occurred in five patients (8.7%), of which two were directly attributable to SABR. A statistically significant difference was identified between median BED3 for 4 cm3 of airway, for patients who developed haemoptysis versus those who did not (147.4 versus 47.2 Gy, P = 0.005). At the last known follow-up, 50 patients (87.7%) were without local recurrence. Freedom from local progression at 2 and 4 years was 92 and 79.8%, respectively. The median overall survival was 34.3 (95% confidence interval 6.1-61.6) months. Overall survival at 2 and 4 years was 55.1 and 41.2%, respectively. CONCLUSION: In patients with high-risk ultra-central lung tumours, IMRT-based SABR with homogenous dose prescription achieves high local control, similar to that reported for peripheral tumours. Although fatal haemoptysis occurred in 8.7% of patients, a direct causality with SABR was evident in only 3%. Larger studies are warranted to ascertain factors associated with outcomes, especially toxicity, and identify patients who would probably benefit from this treatment.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Radiocirugia , Radioterapia de Intensidad Modulada , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Pulmón de Células no Pequeñas/radioterapia , Humanos , Neoplasias Pulmonares/radioterapia , Neoplasias Pulmonares/cirugía , Persona de Mediana Edad , Prescripciones , Radiocirugia/efectos adversos , Radioterapia de Intensidad Modulada/efectos adversos , Estudios Retrospectivos
9.
Clin Transplant ; 24(3): 381-5, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-19732098

RESUMEN

INTRODUCTION: A number of recipient variables have been identified which influence waiting list times for a renal allograft. The aim of this study was to evaluate these factors in the Irish population. METHODS: We examined patients accepted onto the transplant list from January 1, 2000 until December 31, 2005. Inclusion criteria were adults listed for kidney only, deceased donor transplants. We included patients previously transplanted. Patients were censored, but still included in the analysis, if they died while on the list, permanently withdrew from the list or if they were not transplanted at the time of the study. RESULTS: There were a total of 984 patients accepted onto the waiting list during the study period, of which 745 of these were transplanted. Factors significantly associated with longer waiting times included age above 50 yr, blood group O and high peak panel reactive antibodies level. Gender and patient body mass index were not associated with longer waiting times. CONCLUSION: We have identified factors associated with a longer waiting time on the Irish cadaveric renal transplant list. This information can help our patients make informed decisions regarding likely waiting times and the merits of living related transplantation.


Asunto(s)
Trasplante de Riñón , Selección de Paciente , Listas de Espera , Adulto , Anciano , Femenino , Humanos , Irlanda , Donadores Vivos , Masculino , Persona de Mediana Edad , Adulto Joven
10.
Clin Transplant ; 23(4): 462-8, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19681975

RESUMEN

We analyzed the association between whole-blood trough tacrolimus (TAC) levels in the first days post-kidney transplant and acute cellular rejection (ACR) rates. Four hundred and sixty-four consecutive, deceased-donor kidney transplant recipients were included. All were treated with a combination of TAC, mycophenolate mofetil and prednisolone. Patients were analyzed in four groups based on quartiles of the mean TAC on days 2 and 5 post-transplant: Group 1: median TAC 11 ng/mL (n = 122, range 2-13.5 ng/mL), Group 2: median 17 ng/mL (n = 123, range 14-20 ng/mL), Group 3: median 24 ng/mL (n = 108, range 20.5-27 ng/mL) and Group 4: median 33.5 ng/mL (n = 116, range 27.5-77.5 ng/mL). A graded reduction in the rates of ACR was observed for each incremental days 2-5 TAC. The one-yr ACR rate was 24.03% (95% CI 17.26-32.88), 22.20% (95% CI 15.78-30.70), 13.41% (95% CI 8.15-21.63) and 8.69% (95% CI 4.77-15.55) for Groups 1-4, respectively (p = 0.003). This study suggests that higher early TACs are associated with reduced rates of ACR at one yr.


Asunto(s)
Rechazo de Injerto/prevención & control , Supervivencia de Injerto , Inmunosupresores/sangre , Trasplante de Riñón/inmunología , Tacrolimus/sangre , Adolescente , Adulto , Anciano , Cadáver , Niño , Preescolar , Monitoreo de Drogas , Quimioterapia Combinada , Femenino , Humanos , Inmunosupresores/uso terapéutico , Masculino , Persona de Mediana Edad , Ácido Micofenólico/análogos & derivados , Ácido Micofenólico/uso terapéutico , Prednisolona/uso terapéutico , Estudios Retrospectivos , Tacrolimus/uso terapéutico , Adulto Joven
11.
Ir Med J ; 102(2): 43-4, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19405316

RESUMEN

The aim of the study was to determine the role of transurethralresection of prostate (TURP) in normalising renal function in men presenting with obstructive renal failure secondary to benign prostatic hyperplasia. We reviewed the cases of 14 men who presented in the last 5 years with renal impairment associated with symptoms of bladder outflow obstruction and radiological evidence of obstructive uropathy. The mean serum creatinine at presentation was 632 ng/mL (range 1299 - 225). The mean age at presentation was 68.2 years (range 50 - 83 years). Duration of symptoms prior to presentation ranged between 1 - 118 months (mean 21.5 months). Following catheter insertion, all patients underwent TURP. Six of the 14 patients required dialysis prior to surgery. Histology of the resected prostate confirmed benign prostatic hypertrophy and/or hyperplasia in all cases. Patients with carcinoma of the prostate were excluded from the study. Following TURP, 2 of the 14 men (14%) failed to void spontaneously following removal of catheter - one patient performs clean self intermittent catheterization (CSIC), the other man has an in-dwelling catheter in situ. One patient died 7 months following TURP due to a myocardial infarction. However, 8 patients, (57%) remained dialysis dependent following TURP. Two of these patients have since undergone successful renal transplantation. Of the remaining 6 patients, only 3 have normal renal function with the other 3 experiencing moderately elevated serum creatinine (range 236 - 344 ng/mL). In patients presenting with renal failure due to bladder outflow obstruction, TURP restores normal voiding pattern in many cases. However renal failure due to bladder outflow obstruction tends to be more refractory and only 3 of 14 patients experienced return to normal renal function post treatment.


Asunto(s)
Hiperplasia Prostática/complicaciones , Hiperplasia Prostática/cirugía , Insuficiencia Renal/etiología , Resección Transuretral de la Próstata , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Humanos , Incidencia , Irlanda/epidemiología , Masculino , Persona de Mediana Edad , Hiperplasia Prostática/epidemiología , Insuficiencia Renal/epidemiología , Insuficiencia Renal/cirugía , Estudios Retrospectivos
12.
Transplant Proc ; 50(10): 2932-2938, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30577150

RESUMEN

BACKGROUND: Organ donation in the United Arab Emirates (UAE) was restricted until recently to living donation. This survey was conducted to explore the public knowledge, belief, and attitude regarding donation during life and after death. METHODOLOGY: A 31-item survey was distributed among 900 participants (UAE residents) of whom 495 completed the forms and were considered for further analysis. RESULTS: Among the participants, 293 (59.2%) were women and 202 (40.1%) were men. With 8 items as the highest possible score, the mean score of knowledge was 4.42 (SD = 1.54) and 436 (88%) of the participants knew about a brain-dead condition. However, their awareness on organ donation and transplantation legislation in the UAE was not consistent, and less than 198 (40%) had correct knowledge in this regard. Religious belief regarding organ donation was scored at 80 and the mean of the beliefs score obtained was 56.56 (SD = 6.39). Together, 369 (74.6%) of the participants had positive religious sentiments regarding the issue. Participants' attitude toward organ donation and transplantation was scored at 14.7 out of 20 possible score (SD = 2.46) with 396 (80%) acknowledging the fact that organ donation and transplantation prolongs and improves recipient's quality of life. LIMITATIONS: The small number of respondents (n = 495) in the survey was a limitation of the study. CONCLUSIONS: The population of the UAE was moderately well informed and motivated about organ donation and transplantation. Although a knowledge gap about the current legislation prevailed, the majority of the participants were knowledgeable, they nurtured positive beliefs, and had compassionate attitude regarding lawful organ transplantation.


Asunto(s)
Conocimientos, Actitudes y Práctica en Salud , Donantes de Tejidos/psicología , Obtención de Tejidos y Órganos , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Religión , Encuestas y Cuestionarios , Donantes de Tejidos/provisión & distribución , Emiratos Árabes Unidos
13.
Transplant Proc ; 39(1): 120-4, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17275487

RESUMEN

OBJECTIVE: Renal transplantation in patients with end-stage renal failure (ESRF) secondary to amyloidosis carries a high risk of postoperative complications. Preoperative investigations are crucial for a successful perioperative course. There are limited data studying the outcome of patients with amyloid nephropathy who undergo renal transplantation. Therefore, we undertook this retrospective review of our experience to highlight the difficulties. MATERIALS AND METHODS: Thirteen patients with AA amyloid-induced ESRF underwent cadaveric renal transplantation from 1985 to 2001 in the Irish transplant population. The perioperative course of these patients was compared to an age-matched control group of 142 nonamyloid patients who had cadaveric renal transplantation during the same time period. Both groups were followed annually for 5 years. RESULTS: The 1- and 5-year patient survival rates were 69% and 69% in the amyloid as compared with 97% and 87% for the control group. In the amyloid group, early death was primarily due to cardiac causes followed by complications of sepsis. Graft survival at 1 and 5 years was 56% and 56% in the amyloid group as compared with 87% and 59% in the control group (P = .0027). Four deaths with a functioning graft contributed to the early graft losses. CONCLUSION: Increased complications, especially cardiac, are noted post-renal transplantation among patients with renal amyloidosis. However, appropriate guideline, for the perioperative management of these patients has yet to be established.


Asunto(s)
Amiloidosis/complicaciones , Fallo Renal Crónico/etiología , Trasplante de Riñón/fisiología , Complicaciones Posoperatorias/clasificación , Adulto , Supervivencia de Injerto , Humanos , Irlanda , Fallo Renal Crónico/cirugía , Trasplante de Riñón/efectos adversos , Trasplante de Riñón/mortalidad , Persona de Mediana Edad , Atención Posnatal , Complicaciones Posoperatorias/epidemiología , Cuidados Preoperatorios , Estudios Retrospectivos , Análisis de Supervivencia
14.
J Dairy Sci ; 90(1): 47-56, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17183074

RESUMEN

The evolution of free fatty acids (FFA) was monitored over 168 d of ripening in Cheddar cheeses manufactured from good quality raw milk (RM), thermized milk (TM; 65 degrees C x 15 s), and pasteurized milk (PM; 72 degrees C x 15 s). Heat treatment of the milk reduced the level and diversity of raw milk microflora and extensively or wholly inactivated lipoprotein lipase (LPL) activity. Indigenous milk enzymes or proteases from RM microflora influenced secondary proteolysis in TM and RM cheeses. Differences in FFA in the RM, TM, and PM influenced the levels of FFA in the subsequent cheeses at 1 d, despite significant losses of FFA to the whey during manufacture. Starter esterases appear to be the main contributors of lipolysis in all cheeses, with LPL contributing during production and ripening in RM and, to a lesser extent, in TM cheeses. Indigenous milk microflora and nonstarter lactic acid bacteria appear to have a minor contribution to lipolysis particularly in PM cheeses. Lipolytic activity of starter esterases, LPL, and indigenous raw milk microflora appeared to be limited by substrate accessibility or environmental conditions over ripening.


Asunto(s)
Queso/análisis , Manipulación de Alimentos/métodos , Calor , Lipólisis , Leche/química , Animales , Bacterias/clasificación , Bacterias/aislamiento & purificación , Queso/microbiología , Recuento de Colonia Microbiana , Ácidos Grasos no Esterificados/análisis , Microbiología de Alimentos , Leche/enzimología , Leche/microbiología , Nitrógeno/análisis , Ácido Fosfotúngstico/análisis , Factores de Tiempo
15.
Clin Toxicol (Phila) ; 45(1): 31-5, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17357379

RESUMEN

OBJECTIVE: Determine the number and outcome of renal (January 1987-June 2001, inclusive) and liver transplants (January 1993-June 2001) performed in Ireland for drug or toxin-induced organ failure and identify the toxins involved. METHODS: Retrospective review of national transplant coordinators' records and patient charts. RESULTS: Fourteen patients received renal transplants for nephropathy secondary to drugs or toxins. In 12 of these cases, renal failure was attributed to chronic toxicity, principally cyclosporin A therapy (seven cases). One-year patient and graft survival were 100%. Twenty-nine liver transplants were for toxin-induced organ failure, and 20 of these were for chronic ethanol induced liver disease. One-year patient and graft survival rates were 77% and 73%, respectively. CONCLUSIONS: Kidney and liver transplants were needed more often because of chronic toxicity than acute poisoning. Both groups had good outcomes at one year post-transplantation.


Asunto(s)
Trasplante de Riñón , Fallo Hepático Agudo/cirugía , Trasplante de Hígado , Intoxicación/cirugía , Insuficiencia Renal/cirugía , Toxinas Biológicas/envenenamiento , Xenobióticos/envenenamiento , Humanos , Irlanda/epidemiología , Fallo Hepático Agudo/inducido químicamente , Insuficiencia Renal/inducido químicamente , Estudios Retrospectivos
16.
Nat Commun ; 8: 15232, 2017 05 16.
Artículo en Inglés | MEDLINE | ID: mdl-28508882

RESUMEN

Magnetic interlayer coupling is one of the central phenomena in spintronics. It has been predicted that the sign of interlayer coupling can be manipulated by electric fields, instead of electric currents, thereby offering a promising low energy magnetization switching mechanism. Here we present the experimental demonstration of voltage-controlled interlayer coupling in a new perpendicular magnetic tunnel junction system with a GdOx tunnel barrier, where a large perpendicular magnetic anisotropy and a sizable tunnelling magnetoresistance have been achieved at room temperature. Owing to the interfacial nature of the magnetism, the ability to move oxygen vacancies within the barrier, and a large proximity-induced magnetization of GdOx, both the magnitude and the sign of the interlayer coupling in these junctions can be directly controlled by voltage. These results pave a new path towards achieving energy-efficient magnetization switching by controlling interlayer coupling.

17.
Eur J Surg Oncol ; 32(10): 1139-43, 2006 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-16784833

RESUMEN

AIMS: The newer 1998 WHO/ISUP grading system for bladder transitional cell carcinoma combined grade 3 (G3) and high grade tumour subset of grade 2 (G2) of the older 1973 WHO grading system into one homogenous high grade group. We evaluated for possible differences in survival and progression between these 2 grades in pT1 bladder tumours. METHODS: From Jan 1(st) 1991-Dec 31(st) 2003, 105 (61 G2 and 44 G3) pT1 bladder tumours fulfilled the 1998 WHO/ISUP high grade criteria. Survival and progression of these tumours were assessed. RESULTS: Of the 44 patients with G3 tumours, 20 are alive versus 22 of the 61 patients with high grade tumour subset of G2 (P=0.04). Of the 44 patients with G3 tumours, 13 progressed versus 12 of the 61 patients with high grade tumour subset of G2 (P=0.02). In multivariate analysis, G3 was a significant predictor of tumour progression (P=0.05) and marginally non-significant predictor of poor patient survival (P=0.056). CONCLUSIONS: A notable difference in survival and progression between high grade tumour subset of G2 and G3 is observed.


Asunto(s)
Carcinoma de Células Transicionales/patología , Neoplasias de la Vejiga Urinaria/patología , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Transicionales/mortalidad , Carcinoma de Células Transicionales/cirugía , Cistectomía , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tasa de Supervivencia , Neoplasias de la Vejiga Urinaria/mortalidad , Neoplasias de la Vejiga Urinaria/cirugía
18.
Surgeon ; 4(4): 245-7, 2006 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-16892843

RESUMEN

Renal artery aneurysms are being encountered more frequently due to a wider use of angiography. As the risk of rupture is unclear, the indications for surgery remain controversial. Despite advances in treatment, complex aneurysms often require nephrectomy for adequate excision. We report a case of an incidentally diagnosed renal artery aneurysm successfully treated with extracorporeal repair and autotransplantation. Ex vivo repair and renal autotransplantation is a safe and effective treatment for the management of complex renal artery aneurysms


Asunto(s)
Aneurisma/cirugía , Nefrectomía , Arteria Renal , Reimplantación , Femenino , Humanos , Persona de Mediana Edad
19.
J Dent ; 46: 18-22, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26826329

RESUMEN

OBJECTIVE: This randomized controlled clinical trial compared two techniques and materials for restoring carious teeth-Bulk dentine replacement versus incremental placement of a hybrid posterior resin composite material in terms of patient comfort (post operative sensitivity and tenderness on biting). MATERIAL AND METHODS: Seventy-two carious teeth were randomized to one of two treatment groups: Group A-were restored with a bulk dentine replacement material or Group B-restored with incrementally placed hybrid composite. Patients were followed up by way of a structured phone call at day 2 and day 7 post-operatively. Patients reporting discomfort at day 7 were subsequently followed up on days 14, and 30. RESULTS: All patients were followed up. At day 2, 18/72 restored teeth had post-operative sensitivity; this figure fell to 10/72 at day 7. A Chi squared test revealed that at day 2 a greater level of sensitivity was reported by patients in Group A (P=0.029). However, at day 7 there was no statistically significant difference between the two groups in terms of sensitivity (P=0.453). 8/72 and 6 /72 teeth had tenderness to biting at days 2 and 7 respectively. A Chi squared test revealed no statistically significant difference between the two groups in terms of tenderness on biting at any time period (P=0.722). Interestingly, Class I cavities were found to be more tender on biting than Class II cavities. At day 30 2/72 teeth exhibited sensitivity and none of the teeth exhibiting tenderness on biting. CONCLUSION: At day 7 there was no significant difference between the two groups in terms of postoperative sensitivity and tenderness on biting.


Asunto(s)
Resinas Compuestas , Caries Dental/terapia , Fracaso de la Restauración Dental , Restauración Dental Permanente/métodos , Dentina , Adolescente , Adulto , Anciano , Caries Dental/clasificación , Preparación de la Cavidad Dental/métodos , Materiales Dentales , Restauración Dental Permanente/efectos adversos , Sensibilidad de la Dentina , Femenino , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Adulto Joven
20.
Ir J Psychol Med ; 33(2): 81-92, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30115140

RESUMEN

OBJECTIVE: Wellness Recovery Action Planning (WRAP) is a cross-diagnostic, patient-centred, self-management intervention for psychiatric illness. WRAP utilises an individualised Wellness Toolbox, a six part structured monitoring and response system, and a crisis and post-crisis plan to promote recovery. The objective of this study was to evaluate the effect of WRAP on personal recovery, quality of life, and self-reported psychiatric symptoms. METHOD: A prospective randomised controlled trial, based on the CONSORT principles was conducted using a sample of 36 inpatients and outpatients with a diagnosis of a mental disorder. Participants were randomly allocated to Experimental Group or Waiting List Control Group conditions in a 1:1 ratio. Measures of personal recovery, personal recovery life areas, quality of life, anxiety, and depression were administered at three time points: (i) pre-intervention, (ii) post-Experimental Group intervention delivery, and (iii) 6-month follow-up. Data was analysed by available case analysis using univariate and bivariate methodologies. RESULTS: WRAP had a significant effect on two personal recovery life areas measured by the Mental Health Recovery Star: (i) addictive behaviour and (ii) identity and self-esteem. WRAP did not have a significant effect on personal recovery (measured by the Mental Health Recovery Measure), quality of life, or psychiatric symptoms. CONCLUSIONS: Findings indicate that WRAP improves personal recovery in the areas of (i) addictive behaviour and (ii) identity and self-esteem. Further research is required to confirm WRAP efficacy in other outcome domains. Efforts to integrate WRAP into recovery-orientated mental health services should be encouraged and evaluated.

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