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1.
J Wound Care ; 29(6): 363-369, 2020 Jun 02.
Artigo em Inglês | MEDLINE | ID: mdl-32530780

RESUMO

Treating patients with hard-to-heal wounds can be a daily challenge for health professionals. A systematic approach is needed to establish accurate management goals and treatment options. This should include a complete wound assessment that takes into account the wound aetiology and characteristics, as well as the patient as a whole. The Triangle of Wound Assessment is a holistic framework designed to assess and manage all wound areas-the wound bed, wound edge and periwound skin. The framework can be used to guide health professionals when evaluating a wound, setting management goals and selecting treatment options. This article describes the use of the Triangle in clinical practice. It shows how a Spanish hospital implemented the framework and how this led to its inclusion in the diabetic foot ulcer (DFU) care pathway used in the region. The article concludes with three case studies describing the clinical outcomes achieved following implementation of the Triangle when managing wounds.


Assuntos
Protocolos Clínicos , Pé Diabético/terapia , Úlcera da Perna/terapia , Higiene da Pele , Feminino , Humanos , Pessoa de Meia-Idade , Exame Físico , Espanha
2.
Alzheimers Dement ; 15(10): 1333-1347, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31473137

RESUMO

INTRODUCTION: Large variability among Alzheimer's disease (AD) cases might impact genetic discoveries and complicate dissection of underlying biological pathways. METHODS: Genome Research at Fundacio ACE (GR@ACE) is a genome-wide study of dementia and its clinical endophenotypes, defined based on AD's clinical certainty and vascular burden. We assessed the impact of known AD loci across endophenotypes to generate loci categories. We incorporated gene coexpression data and conducted pathway analysis per category. Finally, to evaluate the effect of heterogeneity in genetic studies, GR@ACE series were meta-analyzed with additional genome-wide association study data sets. RESULTS: We classified known AD loci into three categories, which might reflect the disease clinical heterogeneity. Vascular processes were only detected as a causal mechanism in probable AD. The meta-analysis strategy revealed the ANKRD31-rs4704171 and NDUFAF6-rs10098778 and confirmed SCIMP-rs7225151 and CD33-rs3865444. DISCUSSION: The regulation of vasculature is a prominent causal component of probable AD. GR@ACE meta-analysis revealed novel AD genetic signals, strongly driven by the presence of clinical heterogeneity in the AD series.


Assuntos
Doença de Alzheimer/genética , Endofenótipos , Loci Gênicos , Estudo de Associação Genômica Ampla , Idoso , Doença de Alzheimer/classificação , Demência/genética , Feminino , Predisposição Genética para Doença , Humanos , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único/genética , Espanha
3.
J Lipid Res ; 59(1): 14-24, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29074607

RESUMO

An abnormal acyl-CoA synthetase/stearoyl-CoA desaturase (ACSL/SCD) lipid network fuels colon cancer progression, endowing cells with invasive and migratory properties. Therapies against this metabolic network may be useful to improve clinical outcomes. Because micro-RNAs (miRNAs/miRs) are important epigenetic regulators, we investigated novel miRNAs targeting this pro-tumorigenic axis; hence to be used as therapeutic or prognostic miRNAs. Thirty-one putative common miRNAs were predicted to simultaneously target the three enzymes comprising the ACSL/SCD network. Target validation by quantitative RT-PCR, Western blotting, and luciferase assays showed miR-544a, miR-142, and miR-19b-1 as major regulators of the metabolic axis, ACSL/SCD Importantly, lower miR-19b-1 expression was associated with a decreased survival rate in colorectal cancer (CRC) patients, accordingly with ACSL/SCD involvement in patient relapse. Finally, miR-19b-1 regulated the pro-tumorigenic axis, ACSL/SCD, being able to inhibit invasion in colon cancer cells. Because its expression correlated with an increased survival rate in CRC patients, we propose miR-19b-1 as a potential noninvasive biomarker of disease-free survival and a promising therapeutic miRNA in CRC.


Assuntos
Coenzima A Ligases/metabolismo , Neoplasias Colorretais/genética , Neoplasias Colorretais/terapia , Metabolismo dos Lipídeos/genética , MicroRNAs/genética , MicroRNAs/uso terapêutico , Estearoil-CoA Dessaturase/metabolismo , Células Cultivadas , Neoplasias Colorretais/enzimologia , Neoplasias Colorretais/patologia , Biologia Computacional , Progressão da Doença , Células HEK293 , Humanos
4.
Pediatr Nephrol ; 33(1): 175-180, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28821968

RESUMO

BACKGROUND: Growth retardation and its impact on adult height is considered to be one of the most common complications in patients with chronic kidney disease (CKD). Treatment with recombinant human growth hormone (rhGH) has been effective in improving growth in kidney transplantation (KTx) patients, but little data are available on adult height in patients who began rhGh treatment in late puberty. METHODS: Near-adult height was evaluated in 13 KTx patients treated with rhGH [growth hormone group (GHGr); dose 9.33 mg/m2 per week] for a period of at least 18 months. At initiation of rhGH treatment, testicular volume was >8 ml and serum testosterone was >1 ng/ml compared with the control group (CGr) of ten KTx patients who did not receive rHGH. All subjects were of similar chronological age and bone age and had similar creatinine clearance (CrCl) levels, cumulative corticoid dose, height standard deviation score (SDS), target height SDS, and target height:initial height at the beginning of the study. RESULTS: Near-adult height was significantly greater in the GHGr than in the CGr (-1.8 ± 0.8 vs. -2.9 ± 1.1; p = 0.018). The difference between initial height and near-adult height in the GHGr revealed a significant height gain (initial height -3.1 ± 1.1; near-adult height -1.8 ± 0.8 SDS, respectively; delta 1.2 ± 0.3; p = 0.021). The CrCl level was not significantly different between the GHGr and CGr at either at study initiation or when attaining near-adult height (p = 0.74 and p = 0.23, respectively). CONCLUSIONS: Treatment with rhGH was effective in improving adult height in KTx patients who began treatment in late puberty, without any effect on renal function.


Assuntos
Estatura/efeitos dos fármacos , Transtornos do Crescimento/tratamento farmacológico , Hormônio do Crescimento Humano/uso terapêutico , Transplante de Rim/efeitos adversos , Insuficiência Renal Crônica/complicações , Adolescente , Adulto , Taxa de Filtração Glomerular , Gráficos de Crescimento , Transtornos do Crescimento/etiologia , Humanos , Transplante de Rim/métodos , Masculino , Puberdade , Insuficiência Renal Crônica/terapia , Estudos Retrospectivos , Transplantados , Resultado do Tratamento
5.
J Wound Care ; 27(11): 790-796, 2018 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-30398932

RESUMO

OBJECTIVE: Wound assessment is an essential part of wound management and has traditionally focused on the wound bed. The Triangle of Wound Assessment (Triangle) is a new assessment tool that includes a holistic evaluation of the patient with a wound. The aim of this pilot study was to describe the use of the Triangle in our clinical practice in Spain. METHODS: Prospective, consecutive patients, male and female, over 18 years old, with wounds of any aetiology and duration, who attended the centres involved in the study, were recruited between May and June 2017. The TWA was used during the first presentation, to assess the wound bed, edge and periwound skin. The study's expert panel met to discuss the results collected by the assessment, as well as the advantages and disadvantages of the system. RESULTS: We recruited 90 patients. Non-viable tissue (necrotic/sloughy) was recorded in 57.8% of the patients, elevated exudate (medium/high) in 52.2%. Approximately 25% of the patients had signs or symptoms of local infection. Maceration was the most prevalent issue recorded on the wound edge and periwound skin assessment, affecting 31.1% and 30.0% of the patients, respectively. The presence of hyperkeratosis was high for the study population as the main aeitologies of the wounds identified here were DFU. CONCLUSIONS: The implementation of Triangle Wound Assessment could help in the holistic approach to patient care by focusing on more than local wound care, identifying barriers to achieving wound healing and evaluating wound response and patient compliance.


Assuntos
Doença Crônica/classificação , Técnicas e Procedimentos Diagnósticos/normas , Guias de Prática Clínica como Assunto , Ferimentos e Lesões/classificação , Ferimentos e Lesões/diagnóstico , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Estudos Prospectivos
6.
Alzheimers Dement ; 14(5): 634-643, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29156223

RESUMO

INTRODUCTION: Subjective cognitive decline (SCD) has been proposed as a potential preclinical stage of Alzheimer's disease (AD). Nevertheless, the genetic and biomarker profiles of SCD individuals remain mostly unexplored. METHODS: We evaluated apolipoprotein E (APOE) ε4's effect in the risk of presenting SCD, using the Fundacio ACE Healthy Brain Initiative (FACEHBI) SCD cohort and Spanish controls, and performed a meta-analysis addressing the same question. We assessed the relationship between APOE dosage and brain amyloid burden in the FACEHBI SCD and Alzheimer's Disease Neuroimaging Initiative cohorts. RESULTS: Analysis of the FACEHBI cohort and the meta-analysis demonstrated SCD individuals presented higher allelic frequencies of APOE ε4 with respect to controls. APOE dosage explained 9% (FACEHBI cohort) and 11% (FACEHBI and Alzheimer's Disease Neuroimaging Initiative cohorts) of the variance of cerebral amyloid levels. DISCUSSION: The FACEHBI sample presents APOE ε4 enrichment, suggesting that a pool of AD patients is nested in our sample. Cerebral amyloid levels are partially explained by the APOE allele dosage, suggesting that other genetic or epigenetic factors are involved in this AD endophenotype.


Assuntos
Doença de Alzheimer/genética , Amiloide/sangue , Apolipoproteína E4/genética , Disfunção Cognitiva/genética , Autoavaliação Diagnóstica , Alelos , Biomarcadores/metabolismo , Encéfalo/diagnóstico por imagem , Encéfalo/metabolismo , Disfunção Cognitiva/diagnóstico por imagem , Estudos Transversais , Feminino , Genótipo , Humanos , Masculino , Metanálise como Assunto , Pessoa de Meia-Idade , Neuroimagem/métodos , Fatores de Risco , Espanha
7.
Analyst ; 141(7): 2238-49, 2016 Apr 07.
Artigo em Inglês | MEDLINE | ID: mdl-26933694

RESUMO

One strategy to improve the clinical outcome of radiotherapy is to use nanoparticles as radiosensitizers. Along this line, numerous studies have shown the enhanced effectiveness of tumour cell killing when nanoparticles are exposed to irradiation. However, the mechanisms of action are not clear yet. In addition to the damage due to a possible local radiation dose enhancement, the interaction of nanoparticles with essential biological macromolecules could lead to changes in the cells, such as cell arrest at radiosensitive phases. Within this framework, vibrational spectroscopy was used to investigate the biochemical changes in F98 glioma cells induced by X-ray irradiations combined with gadolinium nanoparticles. Fourier transform infrared (FTIR) microspectroscopy experiments were performed at the Emira laboratory of the SESAME synchrotron (Jordan), allowing the characterisation of spectral signatures of nanoparticle-induced effects in glioma cells. Multivariate analysis of the spectra recorded using principal component analysis reveals clear differences in the DNA, protein and lipid regions in the presence of nanoparticles. Prior to irradiation, results show that nanoparticles induce biochemical modifications in the cells, probably due to changes in the cellular function. Biochemical alterations are amplified in the presence of radiation. In particular, variations in the intensity and in the position of the PO2(-) symmetric and asymmetric modes are observed due to radiation damage to the DNA, which is increased in nanoparticle-treated cells. At 24 hours post-irradiation, biochemical changes related to the hallmark characteristics of cell death are detected. This includes a shift towards low wavenumbers in the amide I and II bands, relative amplitude changes in the CH2 and CH3 stretching modes, along with DNA chromatin condensation indications. Results were confirmed by two complementary cell viability assays.


Assuntos
Gadolínio/química , Gadolínio/farmacologia , Glioma/patologia , Nanopartículas Metálicas , Espectroscopia de Infravermelho com Transformada de Fourier/instrumentação , Síncrotrons , Animais , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Sobrevivência Celular/efeitos da radiação , Relação Dose-Resposta à Radiação , Ratos , Raios X
8.
Zygote ; 24(5): 707-13, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26964875

RESUMO

The resazurin reduction test (RRT) is a useful technique to assess the metabolic rate of sperm cells. RRT depends on the ability of metabolically active cells to reduce the non-fluorescent dye resazurin to the fluorescent resorufin. The aim of this study was to develop a vital fluorometric method to evaluate metabolic activity of rabbit sperm cells. Twenty-five rabbit males were included in the study. Viability and morphology, motility and metabolic activity were evaluated using an eosin-nigrosin staining, a computer-assisted semen analysis (CASA) and the RRT, respectively. Spearman rank correlation analysis was used to determine the correlation between RRT and semen parameters. After evaluation, a concentration of 10 × 106 sperm cells/ml was selected for further experiments with RRT. No significant correlation was found between the RRT results and the motility parameters. However, after RRT a significant positive correlation between relative fluorescence units and the percentage of alive spermatozoa (r = 0.62; P = 0.001) and a negative one with the percentage of sperm cells with acrosomic abnormalities (r = -0.45; P < 0.05) were detected. The vital assessment of metabolic rate of sperm cells by RRT could provide more information about semen quality than other routine semen analysis, correlating with sperm viability and acrosome status information.


Assuntos
Fluorometria/métodos , Análise do Sêmen/métodos , Motilidade dos Espermatozoides , Espermatozoides/citologia , Espermatozoides/metabolismo , Reação Acrossômica , Animais , Sobrevivência Celular , Masculino , Oxazinas/metabolismo , Coelhos , Contagem de Espermatozoides , Xantenos/metabolismo
9.
Medicina (B Aires) ; 76(5): 265-272, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27723613

RESUMO

Between September 1995 and December 2010, 99 new consecutive assessable patients with extra-cranial MGCT were treated according to SFOP/SFCE TGM95 Protocol. A "watch and wait" strategy for completely resected stage I-II was observed in cases with preoperative high tumor markers levels. Metastatic disease or alpha fetoprotein levels > 15 000 ng/ml cases were treated by VIP chemotherapy (etoposide, ifosfamide and CDDP) 4-6-courses. All other cases were treated by VBP (vinblastine, bleomycin, and CDDP) 3-5 courses. Median age for the whole group was 11.1 (r: 0-17) years. Males: 49, females: 50. Stage I: 19 patients, stage II: 16, stage III: 31 and stage IV: 3. Gonadal disease occurred in 77 cases. Of 21 completely resected stage I-II patients with MGCT who did not receive chemotherapy after surgery, 6 presented disease progression and were successfully treated by chemotherapy and remained disease-free. There were no significant differences in outcome according to age, gender, initial site, staging, and histological variant or high levels of alpha-fetoprotein. Initial non-responsiveness to VIP chemotherapy was the only significant unfavorable prognostic feature. With a median follow-up of 64 (r: 5-204) months, at 10 years EFS and OS estimates for the whole group were 0.82 (SE = 0.05) and 0.90 (SE = 0.03) respectively. Therapy results of MGCT treated with the SFOP/SFCE 95 strategy were excellent. Initial non-response to front line chemotherapy was the only significant adverse prognostic feature. The "watch and wait" strategy for completely resected disease with initial positive markers proved to be safe with optimal outcome.


Assuntos
Neoplasias Embrionárias de Células Germinativas/patologia , Neoplasias Embrionárias de Células Germinativas/terapia , Guias de Prática Clínica como Assunto , Adolescente , Distribuição por Idade , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Neoplasias Embrionárias de Células Germinativas/mortalidade , Neoplasias de Tecido Gonadal/mortalidade , Neoplasias de Tecido Gonadal/patologia , Neoplasias de Tecido Gonadal/terapia , Neoplasias Ovarianas/mortalidade , Neoplasias Ovarianas/patologia , Neoplasias Ovarianas/terapia , Prognóstico , Estudos Prospectivos , Reprodutibilidade dos Testes , Medição de Risco , Fatores de Risco , Região Sacrococcígea , Distribuição por Sexo , Neoplasias Testiculares/mortalidade , Neoplasias Testiculares/patologia , Neoplasias Testiculares/terapia , Fatores de Tempo , Conduta Expectante/métodos
10.
Clin Endocrinol (Oxf) ; 82(5): 704-11, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25040157

RESUMO

BACKGROUND: IGF1R gene mutations have been associated with varying degrees of intrauterine and postnatal growth retardation, and microcephaly. OBJECTIVE: To identify and characterize IGF1R gene variations in a cohort of 28 Argentinean children suspected of having IGF-1 insensitivity, who were selected on the basis of the association of pre/postnatal growth failure and microcephaly. METHODS: The coding sequence and flanking intronic regions of IGF1R gene were amplified and directly sequenced. Functional characterization was performed by two in vitro assays: 1) [Methyl-(3) H] thymidine incorporation into DNA in fibroblast cell primary cultures from patients and controls treated with IGF-1 for 16-24 h. 2) PI3K/Akt pathway was evaluated with phospho-Akt (Ser473) STAR ELISA Kit (Millipore) in fibroblast cultures from patients and controls stimulated with IGF-1 for 10 min. Prepubertal clinical and GH-IGF-1 axis evaluation was followed up. RESULTS: We identified three novel heterozygous missense mutations in three unrelated patients, de novo p.Arg1256Ser, de novo p.Asn359Tyr and p.Tyr865Cys. In control cells, proliferation assay showed that IGF-1 significantly induced DNA synthesis at 20 h and Akt phosphorylation assay that it significantly stimulated phosphorylation after 10 min (P < 0·05 by anova and Bonferroni Tests). However, no significant increase was observed in any of the three patient fibroblasts in both functional studies. GH therapy growth response in two patients was inconsistent. CONCLUSION: These variations led to failure of the IGF1R function causing pre- and postnatal growth retardation and microcephaly. Microcephaly should be considered in the evaluation of SGA patients, because it seems to favour the frequency of detection of IGF1R mutations.


Assuntos
Transtornos do Crescimento/genética , Microcefalia/genética , Mutação , Receptores de Somatomedina/genética , Adulto , Argentina , Biópsia , Criança , Pré-Escolar , Estudos de Coortes , DNA/genética , Análise Mutacional de DNA , Feminino , Retardo do Crescimento Fetal/genética , Fibroblastos/metabolismo , Variação Genética , Heterozigoto , Hormônio do Crescimento Humano/metabolismo , Humanos , Lactente , Fator de Crescimento Insulin-Like I/metabolismo , Íntrons , Masculino , Fosforilação , Proteínas Proto-Oncogênicas c-akt/metabolismo , Receptor IGF Tipo 1
11.
Arch Argent Pediatr ; : e202310306, 2024 07 04.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-38940751

RESUMO

ABCD syndrome (ABnormal Calcium, Calcinosis, and Creatinine in Down syndrome) is characterized by an association of hypercalcemia, hypercalciuria, nephrocalcinosis, and impaired kidney function in patients with Down syndrome. Only 7 cases have been published worldwide, although it is believed to be underdiagnosed. This report describes 2 new patients with ABCD syndrome and compares them with the cases reported to date. Although it is a rare cause of pediatric hypercalcemia, it should be considered in children with Down syndrome once other more common etiologies have been ruled out. Once this diagnosis is confirmed, the recommended treatment is to reduce dietary calcium intake and work with an interdisciplinary team to maintain an adequate calorie and protein intake.


El síndrome ABCD (por sus siglas en inglés, ABnormal Calcium, Calcinosis and Creatinine in Down syndrome) se caracteriza por la asociación de hipercalcemia, hipercalciuria, nefrocalcinosis y alteración de la función renal en pacientes con síndrome de Down. Existen solo 7 casos previamente publicados en el mundo, aunque se cree que está subdiagnosticado. En este reporte, presentamos 2 nuevos pacientes con este síndrome y realizamos una comparación con los casos informados hasta el momento. Si bien es una causa rara de hipercalcemia pediátrica, debe considerarse en niños con síndrome de Down una vez descartadas otras etiologías más frecuentes. Al confirmarse este diagnóstico, el tratamiento recomendado es la reducción de calcio en la dieta, trabajando de manera interdisciplinaria para mantener un aporte calórico proteico adecuado.

12.
J Pediatr Endocrinol Metab ; 37(4): 353-359, 2024 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-38517399

RESUMO

OBJECTIVES: Secondary hyperparathyroidism (sHPT) is an important contributor to bone disease and cardiovascular calcifications in children with chronic kidney disease (CKD). When conservative measures are ineffective, parathyroidectomy is indicated. The aim of our study was to evaluate the efficacy and safety of subtotal parathyroidectomy (sPTX) in pediatric and adolescent patients, and to provide a rationale for considering this aggressive treatment in CKD patients with uncontrolled sHPT. METHODS: We retrospectively analyzed the medical records of 19 pediatric CKD patients on dialysis with refractory sHPT who underwent sPTX at our institution between 2010 and 2020. All patients had clinical, radiological, and biochemical signs of renal osteodystrophy. RESULTS: One year after sPTX, parathyroid hormone (PTH) levels (median and interquartile range (IQR)) dropped from 2073 (1339-2484) to 164 (93-252) pg/mL (p=0.0001), alkaline phosphatase (ALP) levels from 1166 (764-2373) to 410 (126-421) IU/L (p=0.002), and the mean (±SDS) calcium-phosphate (Ca*P) product from 51±11 to 41±13 mg2/dL2 (p=0.07). Postoperatively, all patients presented with severe hungry bone syndrome (HBS) and required intravenous and oral calcium and calcitriol supplementation. None of them had other postoperative complication. Histological findings had a good correlation with preoperative parathyroid ultrasound imaging (n: 15) in 100 % and with technetium-99m (99mTc) sestamibi scintigraphy (n: 15) in 86.6 %. Clinical and radiological signs of bone disease improved in all patients. CONCLUSIONS: Pediatric sPTX is effective and safe to control sHPT and calcium-phosphate metabolism in children with CKD on dialysis and may mitigate irreversible bone deformities and progression of cardiovascular disease.


Assuntos
Doenças Ósseas , Hiperparatireoidismo Secundário , Insuficiência Renal Crônica , Adolescente , Humanos , Criança , Cálcio , Estudos Retrospectivos , Hiperparatireoidismo Secundário/cirurgia , Hiperparatireoidismo Secundário/complicações , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/terapia , Hormônio Paratireóideo , Paratireoidectomia/efeitos adversos , Paratireoidectomia/métodos , Cálcio da Dieta , Fosfatos
13.
Database (Oxford) ; 20232023 07 18.
Artigo em Inglês | MEDLINE | ID: mdl-37465917

RESUMO

The increasing prevalence of diet-related diseases calls for an improvement in nutritional advice. Personalized nutrition aims to solve this problem by adapting dietary and lifestyle guidelines to the unique circumstances of each individual. With the latest advances in technology and data science, researchers can now automatically collect and analyze large amounts of data from a variety of sources, including wearable and smart devices. By combining these diverse data, more comprehensive insights of the human body and its diseases can be achieved. However, there are still major challenges to overcome, including the need for more robust data and standardization of methodologies for better subject monitoring and assessment. Here, we present the AI4Food database (AI4FoodDB), which gathers data from a nutritional weight loss intervention monitoring 100 overweight and obese participants during 1 month. Data acquisition involved manual traditional approaches, novel digital methods and the collection of biological samples, obtaining: (i) biological samples at the beginning and the end of the intervention, (ii) anthropometric measurements every 2 weeks, (iii) lifestyle and nutritional questionnaires at two different time points and (iv) continuous digital measurements for 2 weeks. To the best of our knowledge, AI4FoodDB is the first public database that centralizes food images, wearable sensors, validated questionnaires and biological samples from the same intervention. AI4FoodDB thus has immense potential for fostering the advancement of automatic and novel artificial intelligence techniques in the field of personalized care. Moreover, the collected information will yield valuable insights into the relationships between different variables and health outcomes, allowing researchers to generate and test new hypotheses, identify novel biomarkers and digital endpoints, and explore how different lifestyle, biological and digital factors impact health. The aim of this article is to describe the datasets included in AI4FoodDB and to outline the potential that they hold for precision health research. Database URL https://github.com/AI4Food/AI4FoodDB.


Assuntos
Telemedicina , Dispositivos Eletrônicos Vestíveis , Humanos , Inteligência Artificial , Dieta , Estilo de Vida
14.
J Synchrotron Radiat ; 19(Pt 1): 60-5, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22186645

RESUMO

This feasibility work assesses the therapeutic effectiveness of minibeam radiation therapy, a new synchrotron radiotherapy technique. In this new approach the irradiation is performed on 9L gliosarcoma-bearing rats with arrays of parallel beams of width 500-700 µm. Two irradiation configurations were compared: a lateral unidirectional irradiation and two orthogonal arrays interlacing at the target. A dose escalation study was performed. A factor of three gain in the mean survival time obtained for some animals paves the way for further exploration of the different possibilities of this technique and its further optimization.


Assuntos
Neoplasias Encefálicas/radioterapia , Gliossarcoma/radioterapia , Animais , Linhagem Celular Tumoral , Imageamento por Ressonância Magnética , Masculino , Radiometria/métodos , Ratos , Ratos Endogâmicos F344 , Taxa de Sobrevida , Síncrotrons
15.
Pediatr Nephrol ; 27(6): 1005-9, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22278170

RESUMO

BACKGROUND: Growth retardation is a considerable clinical problem in children with chronic kidney disease (CKD). Optimization of metabolic and nutritional parameters does not always lead to improved growth. Recombinant human growth hormone (rhGH) treatment has been used to improve height. Several studies in the literature have shown increased growth velocity, although data on the final height (FH) reached are scarce. AIMS: We assessed the effect of rhGH on FH standard deviation score (SDS) in children with CKD following renal transplantation (RTx), comparing it with patients who did not receive rhGH (control group) but were treated with the same protocol and followed up in a single Center. METHODS: Thirty-three patients received rhGH treatment until FH. Fourteen who refused rhGH therapy were included in the controls. Prognostic factors for FH and changes in glomerular filtration rate (GFR) during follow-up were also analyzed RESULTS: FH SDS in rhGH-treated patients was significantly higher than in controls (-1.88 ± 1.14 vs -3.48 ± 1.19 SDS, respectively, p <0.05). In both groups, a similar reduction in GFR was observed. Height (SDS) at onset of rhGH treatment was the only statistically significant variable useful to predict response to treatment (p = 0.001). CONCLUSION: Our findings confirm that rhGH is effective to improve FH in CKD RTx patients, without affecting kidney function.


Assuntos
Estatura/efeitos dos fármacos , Transtornos do Crescimento/tratamento farmacológico , Hormônio do Crescimento Humano/uso terapêutico , Nefropatias/cirurgia , Transplante de Rim , Adolescente , Análise de Variância , Argentina , Estudos de Casos e Controles , Criança , Doença Crônica , Feminino , Taxa de Filtração Glomerular , Transtornos do Crescimento/etiologia , Transtornos do Crescimento/fisiopatologia , Humanos , Nefropatias/complicações , Nefropatias/fisiopatologia , Masculino , Proteínas Recombinantes/uso terapêutico , Análise de Regressão , Fatores de Tempo , Resultado do Tratamento
16.
J Clin Med ; 11(22)2022 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-36431108

RESUMO

Hemorrhoids are blood cushions located in the anus and lower rectum, acknowledged as a common cause of bleeding, which can reduce quality of life. The development of minimally invasive techniques such as endovascular embolization of superior rectal artery, "Emborrhoid technique", is an effective treatment, with no pain or ischemic complications, and allows quick patient recovery. Our purpose is to describe the general technique and discuss the results of the current literature.

17.
J Pediatr Endocrinol Metab ; 35(1): 19-27, 2022 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-34674406

RESUMO

Pediatric adrenocortical tumors are rare and heterogeneous endocrine malignancies. OBJECTIVES: To report clinical, biochemical, and histological features, staging, and therapeutic interventions in a cohort of 28 patients treated at a single tertiary center. METHODS: A retrospective review of medical records of children with PACT (diagnosed before <18 years of age) followed between 1987-2018 at Hospital de Pediatría Garrahan, Buenos Aires, Argentina. RESULTS: Mean age at diagnosis was 4.6 years (range, 0.3-17.3 years) and median follow-up was 4.17 years (range, 0-12 years). Female to male ratio was 2.5:1. Signs and symptoms that prompted medical intervention were hormonal overproduction (57%), abdominal complaints (36%), and hypertensive encephalopathy (7%). In patients with clinically virilizing tumors (n=16) mean height standard deviation score (SDS) and bone age advance were significantly higher while body mass index (BMI) SDS was significantly lower than in those with clinical Cushing's (n=10) (p<0.05). Serum dehydroepiandrosterone sulfate (DHEAS) levels were significantly higher in stage IV than in stage I (p=0.03). Total adrenalectomy was performed in 26 patients. Eight patients (stage III-IV) received adjuvant chemotherapy. Five-year overall and disease-free survival were 100% for ST I-II, and 51% (95% CI 21-82) and 33% (95% CI 1.2-65) for ST III-IV, respectively (p=0.002). No statistical difference was found when comparing 2-year parameters with and without adjuvant chemotherapy. CONCLUSIONS: Height SDS and BMI SDS seem to mirror hormonal secretion in pediatric adrenocortical tumors. Higher DHEAS levels were found in patients with more advanced disease. Further large-scale studies are needed to validate a possible role for DHEAS as a biochemical marker of tumor stage and to draw robust conclusions on the use of adjuvant chemotherapy.


Assuntos
Neoplasias do Córtex Suprarrenal/terapia , Adolescente , Neoplasias do Córtex Suprarrenal/mortalidade , Neoplasias do Córtex Suprarrenal/patologia , Criança , Pré-Escolar , Sulfato de Desidroepiandrosterona/sangue , Feminino , Seguimentos , Humanos , Lactente , Masculino , Estadiamento de Neoplasias , Estudos Retrospectivos , Centros de Atenção Terciária
18.
Alzheimers Res Ther ; 14(1): 43, 2022 03 18.
Artigo em Inglês | MEDLINE | ID: mdl-35303916

RESUMO

BACKGROUND: FACEmemory® is the first computerized, self-administered verbal episodic memory test with voice recognition. It can be conducted under minimal supervision and contains an automatic scoring system to avoid administrator errors. Moreover, it is suitable for discriminating between cognitively healthy and amnestic mild cognitive impairment (MCI) individuals, and it is associated with Alzheimer's disease (AD) cerebrospinal fluid (CSF) biomarkers. This study aimed to determine whether FACEmemory scoring is related to performance on classical memory tests and to AD biomarkers of brain magnetic resonance imaging (MRI) and CSF in patients with early-onset MCI (EOMCI). METHODS: Ninety-four patients with EOMCI from the BIOFACE study completed FACEmemory, classical memory tests (the Spanish version of the Word Free and Cued Selective Reminding Test -FCSRT-, the Word List from the Wechsler Memory Scale, third edition, and the Spanish version of the Rey-Osterrieth Complex Figure Test), and a brain MRI. Eighty-two individuals also underwent a lumbar puncture. RESULTS: FACEmemory scoring was moderately correlated with FCSRT scoring. With regard to neuroimaging MRI results, worse execution on FACEmemory was associated with lower cortical volume in the right prefrontal and inferior parietal areas, along with the left temporal and associative occipital areas. Moreover, the total FACEmemory score correlated with CSF AD biomarkers (Aß1-42/Aß1-40 ratio, p181-tau, and Aß1-42/p181-tau ratio). When performance on FACEmemory was compared among the ATN classification groups, significant differences between the AD group and normal and SNAP groups were found. CONCLUSIONS: FACEmemory is a promising tool for detecting memory deficits sensitive to early-onset AD, but it also allows the detection of memory-impaired cases due to other etiologies. Our findings suggest that FACEmemory scoring can detect the AD endophenotype and that it is also associated with AD-related changes in MRI and CSF in patients with EOMCI. The computerized FACEmemory tool might be an opportunity to facilitate early detection of MCI in younger people than 65, who have a growing interest in new technologies.


Assuntos
Doença de Alzheimer , Disfunção Cognitiva , Diagnóstico por Computador , Memória Episódica , Testes Neuropsicológicos , Doença de Alzheimer/diagnóstico , Peptídeos beta-Amiloides/líquido cefalorraquidiano , Biomarcadores/líquido cefalorraquidiano , Disfunção Cognitiva/diagnóstico , Humanos , Fragmentos de Peptídeos/líquido cefalorraquidiano , Fenótipo , Proteínas tau/líquido cefalorraquidiano
19.
Cancers (Basel) ; 13(13)2021 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-34203185

RESUMO

The COVID-19 pandemic has caused a profound change in health organizations at both the primary and hospital care levels. This cross-sectional study aims to investigate the impact of the COVID-19 pandemic in the annual rate of new cancer diagnosis in two university-affiliated hospitals. This study includes all the patients with a pathological diagnosis of cancer attended in two hospitals in Málaga (Spain) during the first year of pandemic. This study population was compared with the patients diagnosed during the previous year 2019. To analyze whether the possible differences in the annual rate of diagnoses were due to the pandemic or to other causes, the patients diagnosed during 2018 and 2017 were also compared. There were 2340 new cancer diagnosis compared to 2825 patients in 2019 which represented a decrease of -17.2% (p = 0.0001). Differences in the number of cancer patients diagnosed between 2018 and 2019 (2840 new cases; 0.5% increase) or 2017 and 2019 (2909 new cases; 3% increase) were not statistically significant. The highest number of patients lost from diagnosis in 2020 was in breast cancer (-26.1%), colorectal neoplasms (-16.9%), and head and neck tumors (-19.8%). The study of incidence rates throughout the first year of the COVID-19 pandemic shows that the diagnosis of new cancer patients has been significantly impaired. Health systems must take the necessary measures to restore pre-pandemic diagnostic procedures and to recover lost patients who have not been diagnosed.

20.
Sci Rep ; 11(1): 6448, 2021 03 19.
Artigo em Inglês | MEDLINE | ID: mdl-33742011

RESUMO

Neuropsychiatric symptoms (NPS) have been recently addressed as risk factors of conversion to Alzheimer's disease (AD) and other dementia types in patients diagnosed with Mild Cognitive Impairment (MCI). Our aim was to determine profiles based on the prominent NPS in MCI patients and to explore the predictive value of these profiles on conversion to specific types of dementia. A total of 2137 MCI patients monitored in a memory clinic were included in the study. Four NPS profiles emerged (classes), which were defined by preeminent symptoms: Irritability, Apathy, Anxiety/Depression and Asymptomatic. Irritability and Apathy were predictors of conversion to dementia (HR = 1.43 and 1.56, respectively). Anxiety/depression class showed no risk effect of conversion when compared to Asymptomatic class. Irritability class appeared as the most discriminant neuropsychiatric condition to identify non-AD converters (i.e., frontotemporal dementia, vascular dementia, Parkinson's disease and dementia with Lewy Bodies). The findings revealed that consistent subgroups of MCI patients could be identified among comorbid basal NPS. The preeminent NPS showed to behave differentially on conversion to dementia, beyond AD. Therefore, NPS should be used as early diagnosis facilitators, and should also guide clinicians to detect patients with different illness trajectories in the progression of MCI.


Assuntos
Disfunção Cognitiva/diagnóstico , Demência/diagnóstico , Testes de Estado Mental e Demência , Idoso , Idoso de 80 Anos ou mais , Ansiedade/epidemiologia , Apatia , Disfunção Cognitiva/complicações , Disfunção Cognitiva/psicologia , Demência/etiologia , Demência/psicologia , Feminino , Humanos , Humor Irritável , Análise de Classes Latentes , Masculino
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