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1.
Nature ; 594(7861): 71-76, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-34012114

RESUMO

Micronutrient deficiencies (MNDs) remain widespread among people in sub-Saharan Africa1-5, where access to sufficient food from plant and animal sources that is rich in micronutrients (vitamins and minerals) is limited due to socioeconomic and geographical reasons4-6. Here we report the micronutrient composition (calcium, iron, selenium and zinc) of staple cereal grains for most of the cereal production areas in Ethiopia and Malawi. We show that there is geospatial variation in the composition of micronutrients that is nutritionally important at subnational scales. Soil and environmental covariates of grain micronutrient concentrations included soil pH, soil organic matter, temperature, rainfall and topography, which were specific to micronutrient and crop type. For rural households consuming locally sourced food-including many smallholder farming communities-the location of residence can be the largest influencing factor in determining the dietary intake of micronutrients from cereals. Positive relationships between the concentration of selenium in grain and biomarkers of selenium dietary status occur in both countries. Surveillance of MNDs on the basis of biomarkers of status and dietary intakes from national- and regional-scale food-composition data1-7 could be improved using subnational data on the composition of grain micronutrients. Beyond dietary diversification, interventions to alleviate MNDs, such as food fortification8,9 and biofortification to increase the micronutrient concentrations in crops10,11, should account for geographical effects that can be larger in magnitude than intervention outcomes.


Assuntos
Grão Comestível/química , Nutrientes/análise , Valor Nutritivo , Agricultura , Cálcio/análise , Dieta/estatística & dados numéricos , Etiópia , Humanos , Ferro/análise , Malaui , Micronutrientes/análise , Selênio/análise , Inquéritos e Questionários , Triticum/química , Zinco/análise
2.
Clin Otolaryngol ; 49(3): 314-319, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38415339

RESUMO

OBJECTIVES: Paediatric feeding difficulties are common, affecting up to 25% of otherwise healthy children, symptoms include food refusal, gagging, choking, and excessive mealtime duration. These symptoms are commonly described in pre-operative discussions about tonsillectomy. This prospective study explores the impact of tonsillectomy on paediatric feeding difficulties. DESIGN: This prospective cohort study invited caregivers of children undergoing tonsillectomy to complete a PediEAT questionnaire about their children's feeding behaviours, pre and post-operatively. The study was completed in two phases with 9 questions administered in phase 1 and three additional questions added for phase 2. A free text comments box was also provided. Responses were graded from 0 to 5, where 0 is 'never a problem' and 5 is 'always a problem' with eating behaviours. SETTING: The study was conducted at our institution, a tertiary paediatric ENT unit. PARTICIPANTS: Children aged between 6 months - 7 years undergoing tonsillectomy for any indication were invited to participate. MAIN OUTCOME MEASURES: Changes to the Pedi-EAT scores pre and post operatively were the main outcome measure. RESULTS: 102 participants were recruited between January 2020 and January 2022. The mean age of participants was 4.1 years, 87% had a concurrent adenoidectomy. The mean time to completion of post-operative questionnaire was 23 weeks after surgery. 9 of the 12 questions showed a statistically significant improvement in post-operative scores using a paired student t-test (p < 0.05). The most significant improvements related to 'gets tired from eating and is not able to finish' (1.49 pre-op, 0.91 post op, p < 0.01) and 'eats food that needs to be chewed' (1.4 pre-op, 0.72 post-op, p < 0.01). 13% of participants only underwent tonsillectomy and this group also showed a statistically significant improvement in fatigue during eating (p < 0.05). CONCLUSION: Symptoms of fatigue during eating and avoidance of food requiring mastication are most likely to improve following tonsillectomy in children.


Assuntos
Obstrução das Vias Respiratórias , Tonsilectomia , Criança , Humanos , Lactente , Estudos Prospectivos , Adenoidectomia , Avaliação de Resultados em Cuidados de Saúde
3.
J Intellect Disabil Res ; 67(8): 734-745, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37221155

RESUMO

BACKGROUND: Accurate measurement of cognitive skills is necessary to advance both developmental and intervention science for individuals with Down syndrome (DS). This study evaluated the feasibility, developmental sensitivity and preliminary reliability of a reverse categorisation measure designed to assess cognitive flexibility in young children with DS. METHODS: Seventy-two children with DS ages 2.5-8 years completed an adapted version of a reverse categorisation task. Twenty-eight of the participants were assessed again 2 weeks later for retest reliability. RESULTS: This adapted measure demonstrated adequate feasibility and developmental sensitivity, and preliminary evidence for test-retest reliability when administered to children with DS in this age range. CONCLUSIONS: This adapted reverse categorisation measure may be useful for future developmental and treatment studies that target early foundations of cognitive flexibility in young children with DS. Additional recommendations for use of this measure are discussed.


Assuntos
Síndrome de Down , Humanos , Criança , Pré-Escolar , Síndrome de Down/psicologia , Reprodutibilidade dos Testes , Cognição
4.
Ann Oncol ; 33(4): 426-433, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35074424

RESUMO

BACKGROUND: Tumor-only sequencing, implemented for the identification of somatic variants, is oftentimes used for the detection of actionable germline variants. We sought to determine whether tumor-only sequencing assays are suitable for detection of actionable germline variants, given their importance for the delivery of targeted therapies and risk-reducing measures. PATIENTS AND METHODS: The detection of germline variants affecting moderate- and high-penetrance cancer susceptibility genes (CSGs) by tumor-only sequencing was compared to clinical germline testing in 21 333 cancer patients who underwent tumor and germline testing using the Food and Drug Administration (FDA)-authorized Memorial Sloan Kettering-Integrated Mutation Profiling of Actionable Targets (MSK-IMPACT) assay. Seven homologous recombination deficiency (HRD), two DNA damage response (DDR) and four mismatch repair (MMR) genes, as well as NF1, RB1 and TP53 were included in the analysis. FDA-authorized and New York State Department of Health-approved sequencing methods for germline, tumor/normal and tumor-only sequencing assays and analytical pipelines were employed. RESULTS: In patients who underwent tumor and germline sequencing, as compared to clinical genetic testing, tumor-only sequencing failed to detect 10.5% of clinically actionable pathogenic germline variants in CSGs, including 18.8%, 12.8% and 7.3% of germline variants in MMR, DDR and HRD genes, respectively. The sensitivity for detection of pathogenic germline variants by tumor-only sequencing was 89.5%. Whilst the vast majority of pathogenic germline exonic single-nucleotide variants (SNVs) and small indels were detected by tumor-only sequencing, large percentages of germline copy number variants, intronic variants and repetitive element insertions were not detected. CONCLUSIONS: Tumor-only sequencing is adequate for the detection of clinically actionable germline variants, particularly for SNVs and small indels; however, a small subset of alterations affecting HRD, DDR and MMR genes may not be detected optimally. Therefore, for high-risk patients with negative tumor-only sequencing results, clinical genetic testing could be considered given the impact of these variants on therapy and genetic counseling.


Assuntos
Mutação em Linhagem Germinativa , Neoplasias , Predisposição Genética para Doença , Testes Genéticos/métodos , Células Germinativas/patologia , Humanos , Neoplasias/patologia
5.
Ir Med J ; 115(3): 562, 2022 03 16.
Artigo em Inglês | MEDLINE | ID: mdl-35532884

RESUMO

Aims Our aim was to complete an audit loop and identify whether implementing a paediatric ECG checklist improved the documentation and therefore the quality of paediatric ECG interpretation. We designed a paediatric ECG and education proforma in a Paediatric Emergency Department and incorporated it into daily practice. Methods We audited the medical records of children presenting with clinical indications for ECG. We included 40 records before and 40 records after the introduction of a paediatric ECG interpretation checklist. Results We assessed 10 items of documentation of which 8 related to the wave-form. Recording of these ranged from 0-65% before and from 95-100% after the checklist. Conclusion An intervention to introduce a paediatric ECG checklist, including education proforma, demonstrated significant improvement in the interpretation and documentation of a paediatric ECG. We recommend the use of this checklist in primary care and hospital settings.


Assuntos
Documentação , Prontuários Médicos , Lista de Checagem , Criança , Eletrocardiografia , Serviço Hospitalar de Emergência , Humanos
6.
Ir Med J ; 115(1): 521, 2022 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-35279055

RESUMO

Introduction Epistaxis was the third most common unscheduled ENT surgical intervention in Ireland in 2019. Otorhinolaryngologists are exposed to a high viral reservoir of Sars-CoV-2, as they are dealing with pathology in the upper respiratory tract. Risk analysis is required to minimise nosocomial transmission. Methods A prospective audit of epistaxis management in the outpatients at a tertiary hospital was undertaken pre pandemic. A retrospective review of patients records during the Sars-CoV-2 pandemic. Comparative analysis was utilised to assess outcomes. Results Pre Sars-CoV-2 analysis revealed 14 patients (70%) were manged with rigid endoscopy compared to one (5%) interpandemic. Cauterization treated 20 patients (100%) pre pandemic and four patients (20%) interpandemic. Nasal packing modality differed in that 13 patients (65%) were treated with Nasopore pre pandemic and 14 (70%) with Rapid Rhino interpandemic. This exhibited a paradigm shift in that 18 (90%) patients were managed conservatively with nasal packing interpandemic. Conclusion A paradigm shift in the management of Epistaxis during the pandemic has led to treatment which is less invasive, has less morbidity for the patient, requires less hospital admissions and lessens nosocomial transmission of the Sars-CoV-2. Further study is required given the advent of vaccines and development of various strains Sars-CoV-2.


Assuntos
COVID-19 , SARS-CoV-2 , Epistaxe/epidemiologia , Epistaxe/etiologia , Epistaxe/terapia , Humanos , Irlanda/epidemiologia
7.
Osteoporos Int ; 32(4): 727-736, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32997154

RESUMO

Hip fractures continue to be one of the most serious and costly injuries suffered by older people globally. This paper describes the development of a national hip fracture audit and summarises the first 6 years of data from the Republic of Ireland. This can help inform care, standards and outcomes of hip fracture patients. INTRODUCTION: Ireland has one of the highest standardised rates of hip fracture in the world behind northern European countries. The Irish Hip Fracture Database (IHFD) was established in 2012 to drive clinical and organisational improvements in quality and effectiveness of hip fracture care. This paper describes the progression of the IHFD between 2013 and 2018 and identifies trends and areas for improvement. METHODS: The IHFD is a clinically led, web-based audit, with data collected through the national Hospital Inpatient Enquiry (HIPE) electronic system, the principal source of information from publicly funded acute hospitals in Ireland. Eligible cases are aged ≥ 60 years with hip fracture as defined by IHFD or with other specified hip fracture excluding periprosthetic fractures. As of 2015, all 16 trauma-receiving hospitals within Ireland submitted data. Demographics and adherence to six national quality standards are described. RESULTS: A total of 17,983 cases were included in the analysis. National coverage has increased from 63% in 2013 to 99% in 2018. Demographic characteristics are unchanged, but higher levels of comorbidity are seen. Internal fixation and hemiarthroplasty are the most common modes of surgical repair with two-thirds of cases receiving spinal rather than general anaesthesia. Increasingly patients are being assessed by a geriatrician (11% in 2013 to 69% in 2018) and receive a bone health assessment (65% in 2013 to 84% in 2018). CONCLUSION: While some hip fracture standards have improved, further improvements are required to compare favourably internationally. Reduction of surgical delay and ensuring early mobilisation post-operatively are immediate priorities for the IHFD.


Assuntos
Hemiartroplastia , Fraturas do Quadril , Fraturas Periprotéticas , Idoso , Idoso de 80 Anos ou mais , Bases de Dados Factuais , Hemiartroplastia/efeitos adversos , Fraturas do Quadril/epidemiologia , Fraturas do Quadril/cirurgia , Humanos , Irlanda/epidemiologia
8.
Circulation ; 140(13): e700-e710, 2019 09 24.
Artigo em Inglês | MEDLINE | ID: mdl-31446770

RESUMO

Patients with lower-extremity peripheral artery disease (PAD) have greater functional impairment, faster functional decline, increased rates of mobility loss, and poorer quality of life than people without PAD. Supervised exercise therapy (SET) improves walking ability, overall functional status, and health-related quality of life in patients with symptomatic PAD. In 2017, the Centers for Medicare & Medicaid Services released a National Coverage Determination (CAG-00449N) for SET programs for patients with symptomatic PAD. This advisory provides a practical guide for delivering SET programs to patients with PAD according to Centers for Medicare & Medicaid Services criteria. It summarizes the Centers for Medicare & Medicaid Services process and requirements for referral and coverage of SET and provides guidance on how to implement SET for patients with PAD, including the SET protocol, options for outcome measurement, and transition to home-based exercise. This advisory is based on the guidelines established by the Centers for Medicare & Medicaid Services for Medicare beneficiaries in the United States and is intended to assist clinicians and administrators who are implementing SET programs for patients with PAD.


Assuntos
Terapia por Exercício/métodos , Doença Arterial Periférica/terapia , Comitês Consultivos , American Heart Association , Centers for Medicare and Medicaid Services, U.S. , Serviços de Assistência Domiciliar , Humanos , Organização e Administração , Avaliação de Resultados da Assistência ao Paciente , Doença Arterial Periférica/reabilitação , Guias de Prática Clínica como Assunto , Qualidade de Vida , Estados Unidos
9.
World J Urol ; 38(2): 473-480, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31020421

RESUMO

PURPOSE: There are no prospective data describing the incidence and spectrum of long-term complications associated with traumatic urethral catheterisation (UC). We prospectively monitored the long-term clinical outcomes and complications of patients with traumatic UC injuries. METHODS: A prospective study at two tertiary university hospitals was performed to record all referrals for iatrogenic urethral injuries caused by UC. Long-term follow-up was prospectively maintained by regular outpatient department visits and by monitoring all urological interventions and their outcomes from urinary catheter-related injuries. RESULTS: The incidence of traumatic UC was 13.4 per 1000 catheters inserted in male patients and 37 iatrogenic urethral injuries were recorded. The mean age was 74 ± 12 years and the mean length of follow-up was 37 ± 3.7 months. Urethral injuries were caused by inflating the catheter anchoring balloon in the urethra (n = 26) or by creating a false passage with the catheter tip (n = 11). In total, 29 patients (78%) developed urethral stricture disease during their follow-up; of which 11 have required at least one urethral dilation and two have required one urethrotomy. Three patients required long-term indwelling suprapubic catheter placement and seven patients opted for a long-term indwelling urethral catheter. There were eight patient mortalities; one of which was due to severe urosepsis resulting from catheter balloon inflation in the urethra. CONCLUSION: Catheter-related injuries are associated with significant long-term complications in this vulnerable patient cohort. In future, such injuries may be preventable if the safety profile of the urinary catheter is modified.


Assuntos
Uretra/lesões , Estreitamento Uretral/etiologia , Cateterismo Urinário/efeitos adversos , Cateteres Urinários/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Seguimentos , Humanos , Incidência , Irlanda/epidemiologia , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Fatores de Tempo , Estreitamento Uretral/epidemiologia , Cateterismo Urinário/métodos
10.
BMC Geriatr ; 20(1): 55, 2020 02 13.
Artigo em Inglês | MEDLINE | ID: mdl-32054464

RESUMO

BACKGROUND: Falls in older people are common and can result in loss of confidence, fear of falling, restriction in activity and loss of independence. Causes of falls are multi-factorial. There is a paucity of research assessing the footwear characteristics among older people who are at high risk of falls, internationally and in the Irish setting. The aim of this study was to examine the proportion of older adults attending a geriatric day hospital in Ireland who were wearing incorrectly sized shoes. METHODS: A consecutive sample of 111 older adults aged 60 years and over attending a geriatric day hospital in a large Irish teaching hospital was recruited. Demographic data including age, mobility, medications, co-habitation status, footwear worn at home and falls history were recorded. Shoe size and foot length were measured in millimetres using an internal shoe gauge and SATRA shoe size stick, respectively. Participants' self-reported shoe size was recorded. Footwear was assessed using the Footwear Assessment Form (FAF). A Timed Up and Go (TUG) score was recorded. Functional independence was assessed using the Nottingham Extended Activities of Daily Living (NEADL) Scale. The primary outcome of interest in this study was selected as having footwear within the suggested range (10 to 15 mm) on at least one foot. Participants who met this definition were compared to those with ill-fitting footwear on both feet using Chi-square tests, T-tests or Mann-Whitney U tests. RESULTS: The mean difference between shoe length and foot length was 18.6 mm (SD: 9.6 mm). Overall, 72% of participants were wearing footwear that did not fit correctly on both feet, 90% had shoes with smooth, partly worn or fully worn sole treading and 67% reported wearing slippers at home. Participant age, TUG score and NEADL score were not associated with ill-fitting footwear. CONCLUSIONS: Wearing incorrectly fitting shoes and shoes with unsafe features was common among older adults attending geriatric day services in this study. A large number of participants reported wearing slippers at home.


Assuntos
Acidentes por Quedas , Sapatos , Acidentes por Quedas/prevenção & controle , Atividades Cotidianas , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Medo , Feminino , Humanos , Vida Independente , Irlanda/epidemiologia , Masculino , Pessoa de Meia-Idade
11.
Int J Cosmet Sci ; 42(5): 471-481, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32623734

RESUMO

BACKGROUND & AIMS: Previous investigations have aimed at investigating parameters affecting age perception on several ethnicities. Perceived health has been a newer focus on Caucasian skin, yet little is known on the skin features used to estimate the health status of Chinese women and we aimed to investigate whether these cues are the same as those used for age perception. METHODS: Age and health appearance of 276 Chinese female volunteers were estimated from their photographs by 1025 female naïve Chinese graders 20-69 years old. Models were built to predict perceived age and health from topographic, colour and biophysical measured variables, in two subsets of the studied volunteers: below and above 50 years. Machine learning-based predictive models for age and health perception were built on the collected data, and the interpretability of the models was established by measuring feature importance. RESULTS: Age perception was mostly driven by topographic features, particularly eye bags and eyelid sagging in the group below 50 years old. Wrinkles, notably from the lower part of the face and oval of the lower face, were found to be more relevant in the group above 50 years. Health appearance was primarily signalled by skin imperfections and global pigmentation in the subset below 50 years, whereas colour-related parameters and skin hydration acted as health cues for the subset above 50 years. CONCLUSION: Distinct skin features were acting as cues for age perception and/or health perception and varied per age subset. Their contribution should be borne in mind when designing products for 'younger looking skin' and 'healthier looking skin'.


OBJECTIF: Des études se sont penchées sur les paramètres cutanés influant sur la perception de l'âge, et ce sur plusieurs groups ethniques. La santé perçue quant à elle est un focus plus récent, avec des données publiées sur les peaux caucasiennes, au contraire des peaux chinoises. Nous avons donc décidé d'étudier quels sont ces paramètres cutanés influant sur la santé perçue et s'ils diffèrent de ceux utilisés dans la perception de l'âge, au sein d'un panel de femmes chinoises. MÉTHODES: L'âge et la santé cutanée de 276 femmes chinoises ont été estimés à partir de leurs photographies par un panel de 1025 évaluatrices naïves âgées de 20 à 69 ans. Des modèles ont été construits pour prédire l'âge et la santé perçus à partir de paramètres cutanés topographiques, de couleur et biophysiques, dans deux groupes d'âges différents : en dessous et au-dessus de 50 ans. Des modèles prédictifs basés sur l'apprentissage automatique (Machine learning) pour la perception de l'âge et de la santé ont été construits à partir des données collectées et l'interprétabilité des modèles a été établie en mesurant l'importance des paramètres cutanés. RÉSULTATS: Nos résultats montrent que la perception de l'âge repose principalement sur des paramètres topographiques, en particulier les poches sous les yeux et l'affaissement de la paupière, pour le groupe âgé de moins de 50 ans. Les rides, notamment celles de la partie basse du visage et le contour de la partie basse du visage se sont montrés pertinents pour estimer l'âge dans le groupe âgé de plus de 50 ans. La perception de la santé est principalement affectée par les imperfections cutanées et la pigmentation dans le groupe âgé de moins de 50 ans, tandis que des paramètres liés à la couleur et l'hydratation prennent le relais pour le groupe âgé de plus de 50 ans. CONCLUSION: Des paramètres cutanés de nature diverse sont pris en compte selon que l'on essaye d'estimer l'âge ou la santé, et ce en fonction du groupe d'âge étudié. Leur contribution doit être prise en compte lors de la conception de produits pour une «peau d'apparence plus jeune¼ et une «peau d'apparence plus saine¼.


Assuntos
Fatores Etários , Povo Asiático , Nível de Saúde , Adulto , Idoso , Idoso de 80 Anos ou mais , China , Estudos de Coortes , Humanos , Pessoa de Meia-Idade , Envelhecimento da Pele
12.
Clin Auton Res ; 28(1): 135, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29204719

RESUMO

There is a typographical error in the formula presented for QTVI. While the formula was correctly applied to the data presented, the description of the formula has an incorrectly placed parenthesis. It should read.

13.
Skin Res Technol ; 24(3): 359-366, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29368349

RESUMO

BACKGROUND: Skin topographic measurements are of paramount importance in the field of dermo-cosmetic evaluation. The aim of this study was to investigate how the Antera 3D, a multi-purpose handheld camera, correlates with other topographic techniques and changes in skin topography following the use of a cosmetic product. METHODS: Skin topographic measurements were collected on 26 female volunteers aged 45-70 years with the Antera 3D, the DermaTOP and image analysis on parallel-polarized pictures. Different filters for analysis from the Antera 3D were investigated for repeatability, correlations with other imaging techniques and ability to detect improvements of skin topography following application of a serum. RESULTS: Most of Antera 3D parameters were found to be strongly correlated with the DermaTOP parameters. No association was found between the Antera 3D parameters and measurements on parallel-polarized photographs. The measurements repeatability was comparable among the different filters for analysis, with the exception of wrinkle max depth and roughness Rt. Following a single application of a tightening serum, both Antera 3D wrinkles and texture parameters were able to record significant improvements, with the best improvements observed with the large filter. CONCLUSION: The Antera 3D demonstrated its relevance for cosmetic product evaluation. We also provide recommendations for the analysis based on our findings.


Assuntos
Cosméticos/farmacologia , Envelhecimento da Pele/efeitos dos fármacos , Pele/diagnóstico por imagem , Idoso , Feminino , Humanos , Imageamento Tridimensional , Pessoa de Meia-Idade , Fotografação , Pele/efeitos dos fármacos
14.
Skin Res Technol ; 24(4): 606-613, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29707814

RESUMO

BACKGROUND: The cause of enlarged pores remains obscure but still remains of concern for women. To complement subjective methods, bioengineered methods are needed for quantification of pores visibility following treatments. The study objective was to demonstrate the suitability of pore measurements from the Antera 3D. MATERIAL AND METHODS: Pore measurements were collected on 22 female volunteers aged 18-65 years with the Antera 3D, the DermaTOP and image analysis on photographs. Additionally, 4 raters graded pore size on photographs on a scale 0-5. Repeatability of Antera 3D parameters was ascertained and the benefit of a pore minimizer product on the cheek was assessed on a sub panel of seven female volunteers. RESULTS: Pore parameters using the Antera were shown to depict pore severity similar to raters on photographs, except for Max Depth. Mean pore volume, mean pore area and count were moderately correlated with DermaTOP parameters (up to r = .50). No relationship was seen between the Antera 3D and pore visibility analysis on photographs. The most repeatable parameters were found to be mean pore volume, mean pore area and max depth, especially for the small and medium filters. The benefits of a pore minimizer product were the most striking for mean pore volume and mean pore area when using the small filter for analysis, rather than the medium/large ones. CONCLUSION: Pore measurements with the Antera 3D represent a reliable tool for efficacy and field studies, with an emphasis of the small filter for analysis for the mean pore volume/mean pore area parameters.


Assuntos
Bochecha/diagnóstico por imagem , Pele/diagnóstico por imagem , Adolescente , Adulto , Idoso , Cosméticos/farmacologia , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Pessoa de Meia-Idade , Variações Dependentes do Observador , Fotografação , Pele/anatomia & histologia , Pele/efeitos dos fármacos , Propriedades de Superfície , Adulto Jovem
16.
Adv Exp Med Biol ; 1107: 189-198, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29340876

RESUMO

Autologous gastrointestinal tissue is the gold standard biomaterial for urinary tract reconstruction despite its long-term neuromechanical and metabolic complications. Regenerative biomaterials have been proposed as alternatives; however many are limited by a poor host derived regenerative response and deficient supportive elements for effective tissue regeneration in vivo. Urological biomaterials are sub-classified into xenogenic extracellular matrices (ECMs) or synthetic polymers. ECMs are decellularised, biocompatible, biodegradable biomaterials derived from animal organs. Synthetic polymers vary in chemical composition but may have the benefit of being reliably reproducible from a manufacturing perspective. Urological biomaterials can be 'seeded' with regenerative stem cells in vitro to create composite biomaterials for grafting in vivo. Mesenchymal stem cells are advantageous for regenerative purposes as they self-renew, have long-term viability and possess multilineage differentiation potential. Currently, tissue-engineered biomaterials are developing rapidly in regenerative urology with many important clinical milestones achieved. To truly translate from bench to bedside, regenerative biomaterials need to provide better clinical outcomes than current urological tissue replacement strategies.


Assuntos
Materiais Biocompatíveis , Medicina Regenerativa/tendências , Engenharia Tecidual , Urologia/tendências , Animais , Matriz Extracelular , Humanos , Polímeros
17.
Cytopathology ; 29(3): 227-232, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29508480

RESUMO

INTRODUCTION: We evaluated immunohistochemical staining for thyroid peroxidase (TPO), a glycoprotein found in the apical plasma membrane of thyroid follicular cells, as a marker for metastatic PTC in FNA samples and compared results with thyroglobulin (Tg) and thyroid transcription factor 1 (TTF1) staining. METHODS: Cell block sections prepared from 100 FNA specimens were stained with a rabbit monoclonal antibody to TPO (EP159). The FNAs included 64 metastatic malignancies from non-thyroid primary sites, including 18 lung, and 36 cases of thyroid tumours (29 PTC, six cases of medullary thyroid carcinoma and one thyroid anaplastic carcinoma). Thyroid tumours were stained with TTF1 and Tg in addition to TPO. All cases of metastatic lung carcinoma also had TTF-1 staining results. RESULTS: TPO staining was negative in all non-thyroid malignancies. Ninety percent (26/29) of PTC were positive. All positive cases showed strong cytoplasmic staining, although 54% (14/26) showed positivity in less than half of the cells. By comparison, Tg staining of TPC cases was present in 62% and TTF-1 in 100%. In addition to showing higher sensitivity, interpretation of staining results with TPO was generally easier with than Tg. All metastatic lung adenocarcinomas were positive for TTF-1 and TPO negative. The six medullary cancers showed positivity in 17%, 0% and 83% with TPO, Tg and TTF-1, respectively. CONCLUSIONS: TPO (mAb EP159) may be a useful addition to immunohistochemical panels for FNA specimens where metastatic PTC is a consideration, particularly in cases where metastatic lung carcinoma features in the differential diagnosis.


Assuntos
Metástase Neoplásica/patologia , Câncer Papilífero da Tireoide/patologia , Neoplasias da Glândula Tireoide/patologia , Autoantígenos/metabolismo , Biomarcadores Tumorais/metabolismo , Biópsia por Agulha Fina/métodos , Proteínas de Ligação a DNA/metabolismo , Humanos , Imuno-Histoquímica/métodos , Iodeto Peroxidase/metabolismo , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patologia , Tireoglobulina/metabolismo , Câncer Papilífero da Tireoide/metabolismo , Neoplasias da Glândula Tireoide/metabolismo
18.
Surgeon ; 16(1): 55-65, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28811169

RESUMO

Autologous gastrointestinal tissue has remained the gold-standard reconstructive biomaterial in urology for >100 years. Mucus-secreting epithelium is associated with lifelong metabolic and neuromechanical complications when implanted into the urinary tract. Therefore, the availability of biocompatible tissue-engineered biomaterials such as extracellular matrix (ECM) scaffolds may provide an attractive alternative for urologists. ECMs are decellularised, biodegradable membranes that have shown promise for repairing defective urinary tract segments in vitro and in vivo by inducing a host-derived tissue remodelling response after implantation. In urology, porcine small intestinal submucosa (SIS) and porcine urinary bladder matrix (UBM) are commonly selected as ECMs for tissue regeneration. Both ECMs support ingrowth of native tissue and differentiation of multi-layered urothelial and smooth muscle cells layers while providing mechanical support in vivo. In their native acellular state, ECM scaffolds can repair small urinary tract defects. Larger urinary tract segments can be repaired when ECMs are manipulated by seeding them with various cell types prior to in vivo implantation. In the present review, we evaluate and summarise the clinical potential of tissue engineered ECMs in reconstructive urology with emphasis on their long-term outcomes in urological clinical trials.


Assuntos
Matriz Extracelular , Engenharia Tecidual/métodos , Alicerces Teciduais , Sistema Urinário/cirurgia , Humanos , Engenharia Tecidual/tendências , Alicerces Teciduais/tendências
19.
Ir Med J ; 111(5): 752, 2018 05 10.
Artigo em Inglês | MEDLINE | ID: mdl-30489048

RESUMO

Aims Mental health conditions are increasingly encountered in general practice. The aim of this study was to review the antidepressant prescribing of this practice. Methods Health One analysis was used to search for patients prescribed antidepressants in the last 6 months and to generate a list of their antidepressant prescriptions over the last three years. Charts were reviewed to determine if these patients were reviewed by a GP in the last 6 months, and by psychiatry in the last year. Results Six hundred and two patients (7% of the practice adult population) were prescribed antidepressants in the last 6 months. Fifty-four percent (n=324) of patients have been on antidepressants for three years or more. Escitalopram was most frequently prescribed. 89% (n=535) were reviewed by a GP in the last 6 months, and 21% (n=127) were reviewed by psychiatry services in the last year. Discussion The majority of patients with mental health problems are being managed in primary care.


Assuntos
Antidepressivos/uso terapêutico , Padrões de Prática Médica/estatística & dados numéricos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
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