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1.
Int J Gynecol Cancer ; 33(8): 1253-1259, 2023 08 07.
Artículo en Inglés | MEDLINE | ID: mdl-37072323

RESUMEN

OBJECTIVE: Olaparib plus bevacizumab maintenance therapy improves survival outcomes in women with newly diagnosed, advanced, high-grade ovarian cancer with a deficiency in homologous recombination. We report data from the first year of routine homologous recombination deficiency testing in the National Health Service (NHS) in England, Wales, and Northern Ireland between April 2021 and April 2022. METHODS: The Myriad myChoice companion diagnostic was used to test DNA extracted from formalin-fixed, paraffin-embedded tumor tissue in women with newly diagnosed International Federation of Gynecology and Obstetrics (FIGO) stage III/IV high-grade epithelial ovarian, fallopian tube, or primary peritoneal cancer. Tumors with homologous recombination deficiency were those with a BRCA1/2 mutation and/or a Genomic Instability Score (GIS) ≥42. Testing was coordinated by the NHS Genomic Laboratory Hub network. RESULTS: The myChoice assay was performed on 2829 tumors. Of these, 2474 (87%) and 2178 (77%) successfully underwent BRCA1/2 and GIS testing, respectively. All complete and partial assay failures occurred due to low tumor cellularity and/or low tumor DNA yield. 385 tumors (16%) contained a BRCA1/2 mutation and 814 (37%) had a GIS ≥42. Tumors with a GIS ≥42 were more likely to be BRCA1/2 wild-type (n=510) than BRCA1/2 mutant (n=304). The distribution of GIS was bimodal, with BRCA1/2 mutant tumors having a higher mean score than BRCA1/2 wild-type tumors (61 vs 33, respectively, χ2 test p<0.0001). CONCLUSION: This is the largest real-world evaluation of homologous recombination deficiency testing in newly diagnosed FIGO stage III/IV high-grade epithelial ovarian, fallopian tube, or primary peritoneal cancer. It is important to select tumor tissue with adequate tumor content and quality to reduce the risk of assay failure. The rapid uptake of testing across England, Wales, and Northern Ireland demonstrates the power of centralized NHS funding, center specialization, and the NHS Genomic Laboratory Hub network.


Asunto(s)
Proteína BRCA1 , Neoplasias Ováricas , Femenino , Humanos , Carcinoma Epitelial de Ovario/genética , Proteína BRCA1/genética , Neoplasias Ováricas/patología , Medicina Estatal , Proteína BRCA2/genética , Inestabilidad Genómica , Recombinación Homóloga , Mutación
2.
Aust J Rural Health ; 31(2): 196-203, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36264011

RESUMEN

OBJECTIVES: The objective of this study is to describe the epidemiological features of each presentation with a primary dermatological diagnosis to a regional emergency department (ED). DESIGN: 1-year retrospective audit. SETTING: Regional Victorian hospital emergency department. PARTICIPANTS: Any presentation to this regional emergency department with a dermatological condition from 1 January 2020 to 31 December 2020. MAIN OUTCOME MEASURES: Dermatology presentations to the ED in 2020 and the prevalence of the associated primary diagnosis. RESULTS: In total, 4.7% (n = 1873) of ED presentations had a primary dermatological diagnosis. Of these, 1484 were ≥18 years of age and 389 were ≤17 years of age. Cellulitis (26.1%, n = 388) was the most common primary diagnosis among presentations ≥18 years. Non-specific rash was the most common diagnosis (23.6%, n = 92) in presentations ≤17 years. Indigenous Australians ≥18 years were more likely to be in a younger age group (p < 0.01), and dermatitis/eczema presentations ≥18 years (n = 10) were the largest diagnostic group referred to a dermatologist. A total of 134 (7.1%) patients ≥18 years travelled more than 50 km to the ED. There were no dermatological emergencies identified. CONCLUSIONS: A high proportion of presentations to this regional ED with a dermatological diagnosis could be well managed by a dermatologist or general practitioner (GP) as an outpatient. The findings of this study inform the need for future rural public dermatology services. Options include teledermatology, or a public weekly or fortnightly rapid review dermatology clinic with a visiting dermatologist, in the absence of a dermatologist onsite.


Asunto(s)
Servicio de Urgencia en Hospital , Médicos Generales , Humanos , Estudios Retrospectivos , Australia , Hospitales
3.
Lancet Oncol ; 23(7): 851-864, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35671774

RESUMEN

BACKGROUND: Capivasertib, an AKT inhibitor, added to fulvestrant, was previously reported to improve progression-free survival in women with aromatase inhibitor-resistant oestrogen receptor (ER)-positive, HER2-negative advanced breast cancer. The benefit appeared to be independent of the phosphoinositide 3-kinase (PI3K)/AKT/phosphatase and tensin homologue (PTEN) pathway alteration status of tumours, as ascertained using assays available at the time. Here, we report updated progression-free survival and overall survival results, and a prespecified examination of the effect of PI3K/AKT/PTEN pathway alterations identified by an expanded genetic testing panel on treatment outcomes. METHODS: This randomised, multicentre, double-blind, placebo-controlled, phase 2 trial recruited postmenopausal adult women aged at least 18 years with ER-positive, HER2-negative, metastatic or locally advanced inoperable breast cancer and an Eastern Cooperative Oncology Group performance status of 0-2, who had relapsed or progressed on an aromatase inhibitor, from across 19 hospitals in the UK. Participants were randomly assigned (1:1) to receive intramuscular fulvestrant 500 mg (day 1) every 28 days (plus a 500 mg loading dose on day 15 of cycle 1) with either capivasertib 400 mg or matching placebo, orally twice daily on an intermittent weekly schedule of 4 days on and 3 days off, starting on cycle 1 day 15. Treatment continued until disease progression, unacceptable toxicity, loss to follow-up, or withdrawal of consent. Treatment was allocated by an interactive web-response system using a minimisation method (with a 20% random element) and the following minimisation factors: measurable or non-measurable disease, primary or secondary aromatase inhibitor resistance, PIK3CA status, and PTEN status. The primary endpoint was progression-free survival in the intention-to-treat population. Secondary endpoints shown in this Article were overall survival and safety in the intention-to-treat population, and the effect of tumour PI3K/AKT/PTEN pathway status identified by an expanded testing panel that included next-generation sequencing assays. Recruitment is complete. The trial is registered with ClinicalTrials.gov, number NCT01992952. FINDINGS: Between March 16, 2015, and March 6, 2018, 183 participants were screened for eligibility and 140 (77%) were randomly assigned to receive fulvestrant plus capivasertib (n=69) or fulvestrant plus placebo (n=71). Median follow-up at the data cut-off of Nov 25, 2021, was 58·5 months (IQR 45·9-64·1) for participants treated with fulvestrant plus capivasertib and 62·3 months (IQR 62·1-70·3) for fulvestrant plus placebo. Updated median progression-free survival was 10·3 months (95% CI 5·0-13·4) in the group receiving fulvestrant plus capivasertib compared with 4·8 months (3·1-7·9) for fulvestrant plus placebo (adjusted hazard ratio [HR] 0·56 [95% CI 0·38-0·81]; two-sided p=0·0023). Median overall survival in the capivasertib versus placebo groups was 29·3 months (95% CI 23·7-39·0) versus 23·4 months (18·7-32·7; adjusted HR 0·66 [95% CI 0·45-0·97]; two-sided p=0·035). The expanded biomarker panel identified an expanded pathway-altered subgroup that contained 76 participants (54% of the intention-to-treat population). Median progression-free survival in the expanded pathway-altered subgroup for participants receiving capivasertib (n=39) was 12·8 months (95% CI 6·6-18·8) compared with 4·6 months (2·8-7·9) in the placebo group (n=37; adjusted HR 0·44 [95% CI 0·26-0·72]; two-sided p=0·0014). Median overall survival for the expanded pathway-altered subgroup receiving capivasertib was 38·9 months (95% CI 23·3-50·7) compared with 20·0 months (14·8-31·4) for those receiving placebo (adjusted HR 0·46 [95% CI 0·27-0·79]; two-sided p=0·0047). By contrast, there were no statistically significant differences in progression-free or overall survival in the expanded pathway non-altered subgroup treated with capivasertib (n=30) versus placebo (n=34). One additional serious adverse event (pneumonia) in the capivasertib group had occurred subsequent to the primary analysis. One death, due to atypical pulmonary infection, was assessed as possibly related to capivasertib treatment. INTERPRETATION: Updated FAKTION data showed that capivasertib addition to fulvestrant extends the survival of participants with aromatase inhibitor-resistant ER-positive, HER2-negative advanced breast cancer. The expanded biomarker testing suggested that capivasertib predominantly benefits patients with PI3K/AKT/PTEN pathway-altered tumours. Phase 3 data are needed to substantiate the results, including in patients with previous CDK4/6 inhibitor exposure who were not included in the FAKTION trial. FUNDING: AstraZeneca and Cancer Research UK.


Asunto(s)
Inhibidores de la Aromatasa , Neoplasias de la Mama , Adolescente , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Inhibidores de la Aromatasa/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Método Doble Ciego , Femenino , Fulvestrant , Humanos , Recurrencia Local de Neoplasia/patología , Fosfatidilinositol 3-Quinasas/genética , Supervivencia sin Progresión , Proteínas Proto-Oncogénicas c-akt , Pirimidinas , Pirroles , Receptor ErbB-2/metabolismo , Receptores de Estrógenos/metabolismo
4.
Int J Gynecol Pathol ; 41(1): 35-39, 2022 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-33741764

RESUMEN

Most breast tumors are primary to this site; breast metastasis of endometrial origin is extremely rare. Low-grade endometrioid endometrial carcinomas can undergo dedifferentiation to undifferentiated carcinoma but such transformation at a metastatic site has been reported previously in only 2 cases. We report a case of dedifferentiation occurring in an isolated solitary breast metastasis of a low-grade endometrioid endometrial carcinoma. A 64-yr-old woman presented with a breast mass 2 yr after initial diagnosis of a grade 1 FIGO stage IIIA endometrioid endometrial carcinoma. Ultrasound guided biopsy of the breast mass showed a grade 1 endometrioid carcinoma which was diffusely estrogen receptor and PAX8-positive, consistent with metastasis from the previous endometrial carcinoma. The tumor initially responded to Letrozole therapy but then abruptly increased in size. Mastectomy revealed a poorly differentiated malignant tumor with morphology and immunophenotype (including loss of ARID1A and ARID1B immunoreactivity) consistent with undifferentiated endometrial carcinoma with no residual low-grade component. Awareness of the phenomenon of dedifferentiation of endometrial carcinoma in a metastatic site is important to avoid misdiagnosis as a primary breast cancer or metastasis from another primary site.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Carcinoma Endometrioide/diagnóstico , Proteínas de Unión al ADN/metabolismo , Neoplasias Endometriales/diagnóstico , Factores de Transcripción/metabolismo , Biopsia con Aguja Gruesa , Neoplasias de la Mama/secundario , Neoplasias de la Mama/cirugía , Carcinoma Endometrioide/patología , Desdiferenciación Celular , Proteínas de Unión al ADN/genética , Neoplasias Endometriales/patología , Femenino , Humanos , Inmunofenotipificación , Mastectomía , Persona de Mediana Edad , Metástasis de la Neoplasia , Factores de Transcripción/genética
5.
Prenat Diagn ; 42(5): 549-556, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35278232

RESUMEN

OBJECTIVE: To evaluate the implementation of non-invasive prenatal testing (NIPT) on pregnant women's choices in a national NHS antenatal screening programme for Down's syndrome, Edwards' syndrome and Patau's syndrome. METHOD: An observational study of all pregnant women with a singleton pregnancy and higher chance (≤1:150) combined or quadruple screening result from 30 April 2018 to 25 September 2020 in Wales, UK. Pregnant women's journey through the pathway was determined including uptake of NIPT, performance of NIPT in a non-research setting and invasive procedures performed. RESULTS: Of the 1273 women with a higher chance initial screening, 1073 (84%) chose NIPT contingent test, 174 (14%) no further testing and 26 (2%) invasive procedure. There were 1001 (93%) low chance NIPT results; 11 (1%) failed results and 61 (6%) high chance results. Average annual incidence of 27 invasive procedures undertaken compared to 229 pre-NIPT implementation, a nearly ninefold reduction. Down's syndrome annual live birth rate remained unchanged across the implementation period. DISCUSSION: This study demonstrates that NIPT contingent screening was highly acceptable to women with a resulting reduction in invasive procedures performed. CONCLUSION: The high uptake of NIPT in NHS antenatal screening pathway conditions should inform planning for other national screening programmes.


Asunto(s)
Síndrome de Down , Síndrome de Down/diagnóstico , Femenino , Humanos , Masculino , Embarazo , Diagnóstico Prenatal/métodos , Síndrome de la Trisomía 13 , Síndrome de la Trisomía 18 , Reino Unido/epidemiología
6.
Am J Hum Genet ; 103(5): 752-768, 2018 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-30388402

RESUMEN

The nuclear factor I (NFI) family of transcription factors play an important role in normal development of multiple organs. Three NFI family members are highly expressed in the brain, and deletions or sequence variants in two of these, NFIA and NFIX, have been associated with intellectual disability (ID) and brain malformations. NFIB, however, has not previously been implicated in human disease. Here, we present a cohort of 18 individuals with mild ID and behavioral issues who are haploinsufficient for NFIB. Ten individuals harbored overlapping microdeletions of the chromosomal 9p23-p22.2 region, ranging in size from 225 kb to 4.3 Mb. Five additional subjects had point sequence variations creating a premature termination codon, and three subjects harbored single-nucleotide variations resulting in an inactive protein as determined using an in vitro reporter assay. All individuals presented with additional variable neurodevelopmental phenotypes, including muscular hypotonia, motor and speech delay, attention deficit disorder, autism spectrum disorder, and behavioral abnormalities. While structural brain anomalies, including dysgenesis of corpus callosum, were variable, individuals most frequently presented with macrocephaly. To determine whether macrocephaly could be a functional consequence of NFIB disruption, we analyzed a cortex-specific Nfib conditional knockout mouse model, which is postnatally viable. Utilizing magnetic resonance imaging and histology, we demonstrate that Nfib conditional knockout mice have enlargement of the cerebral cortex but preservation of overall brain structure and interhemispheric connectivity. Based on our findings, we propose that haploinsufficiency of NFIB causes ID with macrocephaly.


Asunto(s)
Haploinsuficiencia/genética , Discapacidad Intelectual/genética , Megalencefalia/genética , Factores de Transcripción NFI/genética , Adolescente , Adulto , Animales , Corteza Cerebral/patología , Niño , Preescolar , Codón sin Sentido/genética , Estudios de Cohortes , Cuerpo Calloso/patología , Femenino , Humanos , Masculino , Ratones , Ratones Noqueados , Polimorfismo de Nucleótido Simple/genética , Adulto Joven
7.
PLoS Pathog ; 15(3): e1007620, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30856238

RESUMEN

The biotrophic fungal pathogen Blumeria graminis causes the powdery mildew disease of cereals and grasses. We present the first crystal structure of a B. graminis effector of pathogenicity (CSEP0064/BEC1054), demonstrating it has a ribonuclease (RNase)-like fold. This effector is part of a group of RNase-like proteins (termed RALPHs) which comprise the largest set of secreted effector candidates within the B. graminis genomes. Their exceptional abundance suggests they play crucial functions during pathogenesis. We show that transgenic expression of RALPH CSEP0064/BEC1054 increases susceptibility to infection in both monocotyledonous and dicotyledonous plants. CSEP0064/BEC1054 interacts in planta with the pathogenesis-related protein PR10. The effector protein associates with total RNA and weakly with DNA. Methyl jasmonate (MeJA) levels modulate susceptibility to aniline-induced host RNA fragmentation. In planta expression of CSEP0064/BEC1054 reduces the formation of this RNA fragment. We propose CSEP0064/BEC1054 is a pseudoenzyme that binds to host ribosomes, thereby inhibiting the action of plant ribosome-inactivating proteins (RIPs) that would otherwise lead to host cell death, an unviable interaction and demise of the fungus.


Asunto(s)
Ascomicetos/patogenicidad , Proteínas Fúngicas/metabolismo , Interacciones Huésped-Patógeno/inmunología , Inmunidad de la Planta/inmunología , Plantas/inmunología , ARN de Planta/metabolismo , ARN Ribosómico/metabolismo , Secuencia de Aminoácidos , Proteínas Fúngicas/química , Proteínas Fúngicas/genética , Regulación Fúngica de la Expresión Génica , Enfermedades de las Plantas/inmunología , Enfermedades de las Plantas/microbiología , Plantas/microbiología , Conformación Proteica , ARN de Planta/genética , ARN Ribosómico/genética , Homología de Secuencia
8.
Prenat Diagn ; 41(6): 661-667, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33848363

RESUMEN

BACKGROUND: The value of chromosome microarray (CMA) in the prenatal detection of significant chromosome anomalies is well-established. To guide the introduction of this technique in routine clinical practice, the Joint Committee on Genomics in Medicine developed national UK guidelines for reporting prenatal CMA in 2015. OBJECTIVE: To evaluate the UK experience of utilising prenatal CMA. METHOD: A 36-item survey was distributed to all UK clinical genetics services (n = 23) in March 2019 requesting information pertaining to experience since diagnostic testing commenced and current practice (March 2018 to March 2019). RESULTS: Eighteen UK genetics services currently offer prenatal CMA. A total of 14,554 tests had been performed. A pathogenic copy number variant was identified in 7.8% of tests overall, though the diagnostic rate increased to 8.4% in the final year of the survey. Variants of uncertain significance (VUS) were reported in 0.7% of tests, and 'actionable' incidental findings in 0.12%. CONCLUSION: Diagnostic rate has improved over time, while reporting of VUS has decreased. Reviewing survey responses at a national level highlights variation in testing experience and practice, raising considerations both for future guideline development and implementation of other novel techniques including prenatal whole exome sequencing.


Asunto(s)
Cromosomas/genética , Análisis de Matrices Tisulares/métodos , Adulto , Femenino , Pruebas Genéticas/métodos , Pruebas Genéticas/estadística & datos numéricos , Humanos , Embarazo , Diagnóstico Prenatal/métodos , Encuestas y Cuestionarios , Análisis de Matrices Tisulares/estadística & datos numéricos , Reino Unido
9.
Psychiatr Danub ; 33(Suppl 1): 13-17, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33638951

RESUMEN

INTRODUCTION: Trauma Aid UK (previously HAP UK & Ireland) conducted three EMDR trainings in Turkey: the first was in Istanbul on 28th November 2013. Since then, 3 groups of mental health trainees attending part 1 of 3 parts EMDR training. In total, 86 clinicians were trained. Also, in June 2016, the first part of a three-part EMDR training in Nepal was completed following the Nepal Earthquake in 2015. The purpose of this study is to assess, analyse and understand the needs of Syrian refugees, who have being experiencing man made trauma since 2011, with Nepalese people who were exposed to the earthquake on 25/4/2015, in their needs for trauma services, training and provision as assessed by mental health professionals working with both groups of people. SUBJECTS AND METHODS: A survey was conducted at the beginning of each of the above-mentioned training courses. Participants were asked to consent to participate in the study and, if they did, they were given the 'The Need for Trauma-based Services' quantitative and qualitative questionnaire, or its Arabic translation. 63 Syrian participants of the Istanbul and Gaziantep EMDR training were compared with 37 Nepalese participants who also completed the survey. RESULTS: The results analysis of these surveys showed significantly higher PTSD prevalence in the man-made trauma of the Syrian conflict compared with the prevalence following the natural Earthquake in Nepal. 52% of the Syrian mental health professionals surveyed suggested that PTSD is the major mental health problem in their country, compared to only 6% of the Nepalese mental health professionals. Both the Syrian (33%) and Nepalese (27%) health professionals surveyed felt that they were only able to meet around a third of their clients' needs. They felt that training in EMDR in their mother-tongue would help increase their meeting of these needs. Other suggestions of service provisions and innovations were made in order to meet more of the needs of their trauma survivors. CONCLUSIONS: This study highlighted a high need for trauma mental health services of the Syrian refugees as reported by mental health professionals working in the neighbouring countries. The important difference of these needs from those of the Nepalese people confirms that man-made trauma can cause much greater mental health disturbance and a higher level of needs. Recommendations for training and service development for Syrian refugees were made.


Asunto(s)
Terremotos , Desastres Naturales , Trauma Psicológico/terapia , Refugiados/psicología , Encuestas y Cuestionarios , Humanos , Nepal , Trauma Psicológico/epidemiología , Trastornos por Estrés Postraumático/epidemiología , Trastornos por Estrés Postraumático/terapia , Siria , Turquía
10.
Psychiatr Danub ; 33(Suppl 1): 4-12, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33638950

RESUMEN

INTRODUCTION: Due to the increased needs of the citizens of Bosnia and Herzegovina (B&H) affected by the 1992-1995 war, after five basic EMDR (Eye Movement Desensitisation and Reprocessing) trainings and one EMDR training workshop for children and adolescents, Trauma Aid UK (former Humanitarian Aid Program UK and Ireland) continually provides supervision to mental health professionals in B&H, working towards European EMDR Association accreditation for the clinicians. To describe the experiences of education, clinical practice, and supervision of EMDR psychotherapy in the process of obtaining European accreditation of EMDR trainees from Bosnia and Herzegovina. SUBJECTS AND METHODS: In order to understand how EMDR trainees perceive the process of supervision up to accreditation, nine questions were sent by email to 95 EMDR trainees about practicing EMDR, the number of patients with whom they use EMDR on a monthly basis, about their supervisors, and the number of completed supervisions, blocks to treatment while practicing EMDR, as well as positive experiences with EMDR practice and working with supervisors. 36 EMDR trainees answered these questions. The answers were analyzed using quantitative and qualitative methods. RESULTS: Of the 36 participants in this short study, 30 (83.3%) are women. Most of them are from Sarajevo 14 (38.9%), Tuzla 8 (22.2%) and Mostar 3 (8.3%), 2 (5.6%) from Bihac, Brcko, Gradacac, one from Banovici, Jajce, Prnjavor, Pale and Zenica. Psychologists make up the highest number of participants 25 (72.3%), followed by 5 (13.9) neuropsychiatric specialists. 31 currently have a supervisor (86.1%), 6 have changed their supervisor, and these 31 do not want to change their existing supervisor. Of them, 5 (13.9%) asked to be assigned a new supervisor. A qualitative analysis of the respondents revealed that the greatest problem in practicing EMDR therapy is the lack of space and time in the institutions where they work, the inability to reach patients seeking EMDR treatment, the parallel use of psychotherapeutic guidelines that they have previously adopted, and insufficient determination to use EMDR. They are mostly satisfied with the experience they have gained in supervision which they deem very important in the process of accreditation. They highly appreciate the expertise and accessibility of the supervisors, to whom they are grateful for the help and support they received while presenting their cases from EMDR practice. CONCLUSIONS: Findings from this study can serve as a basis for improving the supervisory process during the acquisition of European accreditation for EMDR practitioners in B&H. The findings can also aid in understanding the difficulties mental health professionals in BiH face practicing EMDR therapy while working towards the accreditation as practitioners of this very effective and necessary psychotherapeutic method.


Asunto(s)
Acreditación , Desensibilización y Reprocesamiento del Movimiento Ocular/educación , Adolescente , Adulto , Bosnia y Herzegovina , Niño , Femenino , Humanos , Masculino , Encuestas y Cuestionarios
11.
Genet Res (Camb) ; 102: e7, 2020 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-32867862

RESUMEN

OBJECTIVE: Non-invasive prenatal testing (NIPT) is increasingly being adopted as a screening test in the UK and is currently accessed through certain National Health Service healthcare systems or by private provision. This audit aims to describe reasons for and results of cytogenomic investigations carried out within UK genetic laboratories following an NIPT result indicating increased chance of cytogenomic abnormality ('high-chance NIPT result'). METHOD: A questionnaire was sent out to 24 genetics laboratories in the UK and completed by 18/24 (75%). RESULTS: Data were returned representing 1831 singleton pregnancies. A total of 1329 (73%) invasive samples were taken following NIPT results showing a high chance of trisomy 21; this was confirmed in 1305 (98%) of these by invasive sampling. Trisomy 21 was confirmed in >99% of patients who also had high-screen risk results or abnormal scan findings. Amongst invasive samples taken due to NIPT results indicating a high chance of trisomy 18, 84% yielded a compatible result, and this number dropped to 49% for trisomy 13 and 51% for sex chromosomes. CONCLUSION: In the UK, the majority of patients having invasive sampling for high-chance NIPT results are doing so following an NIPT result indicating an increased chance of common trisomies (92%). In this population, NIPT performs particularly well for trisomy 21, but less well for other indications.


Asunto(s)
Aneuploidia , Biomarcadores/análisis , Citodiagnóstico/métodos , Síndrome de Down/diagnóstico , Pruebas Prenatales no Invasivas/métodos , Síndrome de la Trisomía 13/diagnóstico , Síndrome de la Trisomía 18/diagnóstico , Adulto , Síndrome de Down/epidemiología , Síndrome de Down/genética , Femenino , Marcadores Genéticos , Pruebas Genéticas , Humanos , Auditoría Médica , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Embarazo , Medicina Estatal , Síndrome de la Trisomía 13/epidemiología , Síndrome de la Trisomía 13/genética , Síndrome de la Trisomía 18/epidemiología , Síndrome de la Trisomía 18/genética , Ultrasonografía Prenatal/métodos , Reino Unido/epidemiología , Adulto Joven
12.
Mol Pharm ; 17(4): 1428-1441, 2020 04 06.
Artículo en Inglés | MEDLINE | ID: mdl-32125863

RESUMEN

Microbial keratitis is a severe, sight-threatening condition caused by various pathogens. Eyedrops are the standard delivery modality for treating these disorders; however, blinking reflex, elevated tear production, and nasolacrimal drainage eliminate much of the instilled dose within a few seconds. Therefore, eyedrops must be applied repeatedly for prolonged periods. The present study aimed to probe more effective ocular delivery of chlorhexidine based upon drug-loaded hydrogel contact lenses and ß-cyclodextrin (ß-CD), while also determining the effect of constant irrigation with simulated tear fluid (STF) in in vitro experiments. Chlorhexidine digluconate (as 0.2 and 2% solutions, ß-CD inclusion complexes, and loaded hydrogel contact lenses) were applied to enucleated porcine eyes as single or multiple 10 µL doses, or as drug-loaded contact lenses, with and without ß-CD. The corneas were then excised and drug-extracted quantified by high-performance liquid chromatography (HPLC). The effect of constant irrigation by STF was evaluated to test the effect of increased tear production on corneal delivery. Potential antimicrobial activity of the delivered drug was also assessed. Results showed that drug-loaded contact lenses delivered the greatest amount of chlorhexidine into the cornea over a 24 h period, while the eyedrop solution comparator delivered the least. The ß-CD significantly enhanced chlorhexidine delivery to the cornea from eyedrop solution, although contact lenses loaded with chlorhexidine-ß-CD failed to enhance delivery. ß-CD within the hydrogel matrix impeded drug release. Constant irrigation with STF significantly reduced the amount of drug delivered to the cornea in all cases. Chlorhexidine retained antimicrobial activity in all delivery methods. Hydrogel contact lenses loaded with chlorhexidine delivered significantly higher levels to the cornea compared to eyedrops, either multiple hourly doses or a single dose. They also offer reduced application, in particular, to a nonulcerated corneal infection. Finally, the importance of fully accounting for tear production in in vitro ocular delivery experiments was highlighted.


Asunto(s)
Clorhexidina/administración & dosificación , Córnea/efectos de los fármacos , Lágrimas/efectos de los fármacos , beta-Ciclodextrinas/administración & dosificación , Animales , Antiinfecciosos/administración & dosificación , Lentes de Contacto , Sistemas de Liberación de Medicamentos/métodos , Hidrogeles/administración & dosificación , Soluciones Oftálmicas/administración & dosificación , Porcinos
13.
Int J Sports Med ; 41(6): 373-379, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32045952

RESUMEN

Fatigue and overwork have been cited as the main cause of injury with the dance profession. Previous research has shown a difference in workload between professional dancers of different rank, but the role of sex has not been examined. The purpose of this study was to determine workload intensity, rest, and sleep profiles of professional ballet dancers. 48 professional ballet dancers (M=25, F=23) took part in an observational design over 7-14 days using triaxial accelerometer devices. Minutes in METS at different intensities, total time asleep and rest breaks were analysed. Significant main effects for rank (p<0.001) and rank by sex (p=0.003) for total PA, working day activity, post work activity and sleep. Sleep ranged between 2.4-9.6 h per night. All participants spent more time between 1.5-3 METS outside of work. Significant amounts of exercise where carried out outside of their work day, therefore when injury is reported per 1000 h dance activity, this extra-curricular activity might need to be included. When looking at potential causes of injury in dance, a global perspective of physical activity is required that includes activity outside of work and sleep patterns, all activities that influence physiological recovery.


Asunto(s)
Baile/lesiones , Baile/fisiología , Fatiga/fisiopatología , Esfuerzo Físico/fisiología , Descanso/fisiología , Acelerometría , Adulto , Metabolismo Energético/fisiología , Femenino , Humanos , Masculino , Factores Sexuales , Sueño/fisiología
14.
Molecules ; 25(21)2020 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-33114011

RESUMEN

Accumulation of misfolded and mistrafficked rhodopsin on the endoplasmic reticulum of photoreceptor cells has a pivotal role in the pathogenesis of retinitis pigmentosa and a subset of Leber's congenital amaurosis. One potential strategy to reduce rhodopsin misfolding and aggregation in these conditions is to use opsin-binding compounds as chemical chaperones for opsin. Such molecules have previously shown the ability to aid rhodopsin folding and proper trafficking to the outer cell membranes of photoreceptors. As means to identify novel chemical chaperones for rhodopsin, a structure-based virtual screening of commercially available drug-like compounds (300,000) was performed on the main binding site of the visual pigment chromophore, the 11-cis-retinal. The best 24 virtual hits were examined for their ability to compete for the chromophore-binding site of opsin. Among these, four small molecules demonstrated the ability to reduce the rate constant for the formation of the 9-cis-retinal-rhodopsin complex, while five molecules surprisingly enhanced the formation of this complex. Compound 7, 13, 20 and 23 showed a weak but detectable increase in the trafficking of the P23H mutant, widely used as a model for both retinitis pigmentosa and Leber's congenital amaurosis, from the ER to the cell membrane. The compounds did not show any relevant cytotoxicity in two different human cell lines, with the only exception of 13. Based on the structures of these active compounds, a series of in silico studies gave important insights on the potential structural features required for a molecule to act either as chemical chaperone or as stabiliser of the 11-cis-retinal-rhodopsin complex. Thus, this study revealed a series of small molecules that represent a solid foundation for the future development of novel therapeutics against these severe inherited blinding diseases.


Asunto(s)
Evaluación Preclínica de Medicamentos , Pliegue de Proteína , Rodopsina/química , Rodopsina/metabolismo , Unión Competitiva , Modelos Moleculares , Unión Proteica , Conformación Proteica , Termodinámica
15.
Psychiatr Danub ; 30(Suppl 5): 249-252, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30095805

RESUMEN

BACKGROUND: Trauma Aid UK (previously HAP UK &Ireland) conducted three EMDR trainings in Turkey: the first was in Istanbul on 28thNovember 2013. AIM: The purpose of this study is to assess the needs of the Syrian Refugees for trauma services training and provision as assesses by mental health professionals who work with them. SUBJECTS AND METHODS: Amongst the 62 participants of two Istanbul EMDR trainings organised by HAP, 53% were Syrian. We felt it is a unique opportunity to assess the needs of Syrian refugees they are working with. We asked all the participants who are all mental health professionals to complete an Arabic translation of 'The Need for Trauma-based Services Questionnaire' in these trainings. The rest of the participants on the course were from Iraq (18%), Jordan (16%), Egypt (7%) and others from Palestine, Sudan & Libya (6%). All participants completed questionnaires. RESULTS: The results of comparing the needs reported by Syrian mental health professionals showed higher prevalence of PTSD seen by the Syrian mental health professionals (72% compared with 56% in the clients seen by the rest of participants). Also, the Syrian mental health professionals could only meet 34% (SD=17.1) of the needs of their client who suffer from PTSD. The unmet need for trauma therapy was reported as 100% by these professionals. CONCLUSIONS: This study highlighted the high need for trauma mental health services of the Syrian refugees as reported by mental health professionals working in the neighbouring countries. The needs of the Syrian refugees, arriving to the UK because of the very difficult situations, these refugees are coming from, may be met with EMDR therapy. EMDR can be used to help these refugees to be a productive part of the British society.


Asunto(s)
Necesidades y Demandas de Servicios de Salud , Servicios de Salud Mental , Refugiados , Humanos , Salud Mental , Refugiados/psicología , Encuestas y Cuestionarios , Siria/etnología
16.
Psychiatr Danub ; 30(Suppl 5): 243-248, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30095804

RESUMEN

INTRODUCTION: The needs for EMDR (eye movement desensitization and reprocessing) treatment of Bosnia-Herzegovina (BH) citizens, affected by 1992-1995 war, increased. The Trauma Aid UK (former Humanitarian Assistance Programs UK & Ireland) works in partnership with mental health professionals in BH. AIM: We aim to build an environment in which qualified and experienced professionals trained in EMDR may establish and sustain complete EMDR education and to keep international standards of EMDR practice. METHOD: Authors described the history of idea and its realization of EMDR education considering all needed phases that were provided from the Trauma Aid UK with non profit, humanitarian approach in sharing skills of EMDR to mental health therapists in BH. RESULTS: The trainers from Trauma Aid UK completed five EMDR trainings in Bosnia-Herzegovina for recruited trainees from different cities and entities in BH. For continual professional development (CPD) all of these mental health professionals need to be active participants in professional and scientific meetings. Though, Association of Bosnia and Herzegovina EMDR Therapists, member of EMDR Europe, organized the First EMDR conference in Bosnia-Herzegovina sponsored by Trauma Aid UK under the patronage of EMDR Association of UK & Ireland. CONCLUSION: Five training of Bosnia-Herzegovina mental health workers to effectively use EMDR with enthusiastic help of EMDR trainers from Trauma Aid UK resulted with European accredited EMDR practitioners, one European accredited EMDR consultant and the first EMDR conference in BH. This will keep national development of psychotherapy capacities in post-war BH.


Asunto(s)
Desensibilización y Reprocesamiento del Movimiento Ocular , Trastornos por Estrés Postraumático , Bosnia y Herzegovina , Europa (Continente) , Humanos , Trastornos por Estrés Postraumático/terapia , Guerra
17.
Am J Med Genet B Neuropsychiatr Genet ; 177(5): 520-528, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-30134084

RESUMEN

Copy number variants at chromosome 17q12 have been associated with a spectrum of phenotypes. Deletions of 17q12 are well described and associated with maturity onset diabetes of the young type 5 (MODY5) and cystic renal disease (HNF1ß) as well as cognitive impairment and seizures. Duplication of 17q12 is emerging as a new genetic syndrome, associated with learning disability, seizures, and behavioral problems. The duplication is often inherited from an apparently unaffected parent. Here, we describe a three-generation family with multiple individuals carrying a17q12 microduplication with varying clinical features, consistent with variable penetrance. The proband who inherited a 1.8 Mb interstitial 17q12 duplication from his mother presented with developmental delay, behavioral problems, and mild dysmorphism. One of his sisters, his maternal uncle, and his maternal grandmother also carry the 17q12 microduplication. Clinical features of the carriers include renal problems, diabetes mellitus, learning difficulties, epilepsy and mental illness. Cognitive abilities range from normal function to moderate impairment (full-scale IQ range: 52-99). In light of recent reports of association of this locus with schizophrenia, we performed a detailed psychiatric assessment and confirmed that one family member has symptoms consistent with a diagnosis of schizophrenia and another has a prodromal syndrome with attenuated positive symptoms of psychosis. This report extends the clinical phenotype associated with the 17q12 microduplication and highlights the phenotypic variability.


Asunto(s)
Duplicación Cromosómica/genética , Cromosomas Humanos Par 17/genética , Anomalías Múltiples/genética , Adulto , Anciano , Niño , Preescolar , Deleción Cromosómica , Variaciones en el Número de Copia de ADN/genética , Discapacidades del Desarrollo/genética , Epilepsia/genética , Familia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Linaje , Fenotipo , Convulsiones/genética
18.
BMC Med Genet ; 17(1): 34, 2016 04 26.
Artículo en Inglés | MEDLINE | ID: mdl-27113213

RESUMEN

BACKGROUND: Copy number variants (CNVs) have been linked to neurodevelopmental disorders such as intellectual disability (ID), autism, epilepsy and psychiatric disease. There are few studies of CNVs in patients with both ID and epilepsy. METHODS: We evaluated the range of rare CNVs found in 80 Welsh patients with ID or developmental delay (DD), and childhood-onset epilepsy. We performed molecular cytogenetic testing by single nucleotide polymorphism array or microarray-based comparative genome hybridisation. RESULTS: 8.8 % (7/80) of the patients had at least one rare CNVs that was considered to be pathogenic or likely pathogenic. The CNVs involved known disease genes (EHMT1, MBD5 and SCN1A) and imbalances in genomic regions associated with neurodevelopmental disorders (16p11.2, 16p13.11 and 2q13). Prompted by the observation of two deletions disrupting SCN1A we undertook further testing of this gene in selected patients. This led to the identification of four pathogenic SCN1A mutations in our cohort. CONCLUSIONS: We identified five rare de novo deletions and confirmed the clinical utility of array analysis in patients with ID/DD and childhood-onset epilepsy. This report adds to our clinical understanding of these rare genomic disorders and highlights SCN1A mutations as a cause of ID and epilepsy, which can easily be overlooked in adults.


Asunto(s)
Variaciones en el Número de Copia de ADN , Epilepsia/genética , Discapacidad Intelectual/genética , Canal de Sodio Activado por Voltaje NAV1.1/genética , Eliminación de Secuencia , Adolescente , Adulto , Edad de Inicio , Niño , Preescolar , Hibridación Genómica Comparativa , Femenino , Predisposición Genética a la Enfermedad , Humanos , Masculino , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple , Gales , Adulto Joven
20.
Environ Manage ; 56(1): 1-10, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25948151

RESUMEN

The high conservation value (HCV) concept, originally developed by the Forest Stewardship Council, has been widely incorporated outside the forestry sector into companies' supply chain assessments and responsible purchasing policies, financial institutions' investment policies, and numerous voluntary commodity standards. Many, if not most, of these newer applications relate to production practices that are likely to affect freshwater systems directly or indirectly, yet there is little guidance as to whether or how HCV can be applied to water bodies. We focus this paper on commodity standards and begin by exploring how prominent standards currently address both HCVs and freshwaters. We then highlight freshwater features of high conservation importance and examine how well those features are captured by the existing HCV framework. We propose a new set of freshwater 'elements' for each of the six values and suggest an approach for identifying HCV Areas that takes out-of-fence line impacts into account, thereby spatially extending the scope of existing methods to define HCVs. We argue that virtually any non-marine HCV assessment, regardless of the production sector, should be expanded to include freshwater values, and we suggest how to put those recommendations into practice.


Asunto(s)
Conservación de los Recursos Naturales/métodos , Agricultura Forestal , Bosques , Agua Dulce , Modelos Teóricos , Formulación de Políticas
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