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2.
J Hand Surg Glob Online ; 5(1): 73-79, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36704374

RESUMO

Purpose: The aim of this study is to compare patient benefits and economic costs of hand surgeries using the wide-awake local anesthesia no tourniquet (WALANT) technique versus a conventional major outpatient suite and review outcomes and complications in a series of cases of patients operated on using the WALANT technique. Methods: A prospective cohort study was first conducted comparing 150 cases of ambulatory hand surgery (carpal tunnel syndrome and trigger finger) using the WALANT technique and not requiring an operating room setting with 150 cases of outpatient surgery performed in an operating room involving a preoperative evaluation and the use of sedation and tourniquet. Preoperative, intraoperative, and postoperative pain was monitored, and days requiring postoperative analgesia were recorded. The resources and costs were evaluated. and patient satisfaction was assessed using a specific survey.Subsequently, 580 patient medical records were retrospectively reviewed, including 419 carpal tunnel syndrome and 197 trigger finger interventions (616 WALANT surgeries). Results: Intraoperative pain was equivalent for both groups, and postoperative pain was significantly lower in the WALANT group, with a reduced need for analgesics. Satisfaction was greater for the local anesthesia group. The use of personnel resources and hospital materials was reduced in the WALANT group, with a total estimated cost savings of 1.019 USD per patient.There were no complications related to the WALANT technique and the lidocaine and adrenaline combination. We found a complication rate of 5.58%, and, in line with the literature, most complications were minor, managed conservatively, and not related to the anesthetic technique. Conclusions: Procedures such as carpal tunnel and trigger finger surgeries can be safely performed using wide-awake surgery. Patient satisfaction is higher than with the conventional procedure performed in the operating room. Pain control is excellent, especially during the postoperative period. Clinical relevance: Hand surgery patients benefit from the WALANT technique in terms of comfort and timeliness because there is no need for preoperative tests or evaluations. In addition, it represents significant savings in hospital resources. In our case series, complications were in line with those previously reported with other anesthetic techniques.

4.
Radiologia (Engl Ed) ; 64 Suppl 3: 250-264, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36737164

RESUMO

Systemic autoimmune diseases comprise a complex, heterogeneous group of entities. Noteworthy among the pulmonary complications of these entities is interstitial involvement, which manifests with the same radiopathologic patterns as in idiopathic interstitial pneumonia. High-resolution computed tomography is the gold-standard imaging technique; it enables us to identify and classify the disease and to determine its extent, providing useful information about the prognosis. In this group of processes, the most common pattern of presentation is nonspecific interstitial pneumonia. It is essential for radiologists to work together in collaboration with other specialists to reach the correct diagnosis and enable appropriate, integrated treatment.


Assuntos
Doenças do Tecido Conjuntivo , Doenças Pulmonares Intersticiais , Vasculite , Humanos , Doenças Pulmonares Intersticiais/diagnóstico por imagem , Doenças Pulmonares Intersticiais/etiologia , Doenças do Tecido Conjuntivo/complicações , Doenças do Tecido Conjuntivo/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Vasculite/complicações , Vasculite/diagnóstico por imagem , Prognóstico
5.
Rev Esp Anestesiol Reanim (Engl Ed) ; 67(5): 261-270, 2020 May.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-32307151

RESUMO

Coronavirus disease 2019 (COVID-19) is a respiratory tract infection caused by a newly emergent coronavirus, that was first recognized in Wuhan, China, in December 2019. Currently, the World Health Organization (WHO) has defined the infection as a global pandemic and there is a health and social emergency for the management of this new infection. While most people with COVID-19 develop only mild or uncomplicated illness, approximately 14% develop severe disease that requires hospitalization and oxygen support, and 5% require admission to an intensive care unit. In severe cases, COVID-19 can be complicated by the acute respiratory distress syndrome (ARDS), sepsis and septic shock, and multiorgan failure. This consensus document has been prepared on evidence-informed guidelines developed by a multidisciplinary panel of health care providers from four Spanish scientific societies (Spanish Society of Intensive Care Medicine [SEMICYUC], Spanish Society of Pulmonologists [SEPAR], Spanish Society of Emergency [SEMES], Spanish Society of Anesthesiology, Reanimation, and Pain [SEDAR]) with experience in the clinical management of patients with COVID-19 and other viral infections, including SARS, as well as sepsis and ARDS. The document provides clinical recommendations for the noninvasive respiratory support (noninvasive ventilation, high flow oxygen therapy with nasal cannula) in any patient with suspected or confirmed presentation of COVID-19 with acute respiratory failure. This consensus guidance should serve as a foundation for optimized supportive care to ensure the best possible chance for survival and to allow for reliable comparison of investigational therapeutic interventions as part of randomized controlled trials.


Assuntos
Infecções por Coronavirus/terapia , Ventilação não Invasiva/métodos , Pneumonia Viral/terapia , Síndrome do Desconforto Respiratório/diagnóstico , Betacoronavirus , COVID-19 , Consenso , Infecções por Coronavirus/complicações , Infecções por Coronavirus/diagnóstico , Humanos , Pandemias , Pneumonia Viral/complicações , Pneumonia Viral/diagnóstico , Guias de Prática Clínica como Assunto , Síndrome do Desconforto Respiratório/etiologia , SARS-CoV-2
6.
Clin Transl Oncol ; 22(10): 1857-1866, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32170637

RESUMO

BACKGROUND: The addition of everolimus to exemestane therapy significantly improves progression-free survival in postmenopausal patients with hormone-receptor (HR)-positive HER2-negative endocrine-resistant breast cancer. However, the safety profile of this schedule still might be optimized. METHODS: Patients included in the BALLET trial were assessed. The objectives of this analysis were to provide additional information on the safety profile of this schedule depending on prior anticancer therapies and to characterize the time course of adverse events (AEs) and serious AEs (SAEs) of clinical interest throughout the study period. Non-infectious pneumonitis (NIP), stomatitis, asthenia and weight loss were selected as AEs of clinical interest. RESULTS: The safety population of this analysis comprised 2131 patients. There were similar incidences of AEs and SAEs of clinical interest regardless of previous anticancer therapies. Most stomatitis and asthenia events occurred within the first three months. Incidence of weight loss appeared to plateau except in the case of grade 3-4 events, which occurred rarely. The incidence of any grade NIP (between 2 to 6%) and grade 3-4 NIP (between 0 to 1%) was low across the study, but steady. CONCLUSIONS: Everolimus plus exemestane is a well-known therapeutic option for aromatase inhibitor pretreated advanced breast cancer patients, and its toxicity profile is similar to that described in previous studies. Close monitoring, especially within the first three months, early intervention with preventive measures and patient education to help recognize the first signs and symptoms of AEs, will help to reduce their incidence and severity.


Assuntos
Androstadienos/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Everolimo/administração & dosagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Androstadienos/efeitos adversos , Neoplasias da Mama/química , Neoplasias da Mama/patologia , Progressão da Doença , Everolimo/efeitos adversos , Feminino , Humanos , Incidência , Pessoa de Meia-Idade , Receptor ErbB-2/análise , Receptores de Estrogênio/análise
7.
Eur J Clin Microbiol Infect Dis ; 39(6): 1089-1094, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31980987

RESUMO

The epidemiology of non-tuberculous mycobacteria (NTM) in Spain is largely unknown because systematic reporting is not compulsory. The aim of our study was to describe the frequency and diversity of NTM species in our region and their distribution according to the source sample, gender, and age of the patients. We performed a multicenter study of all NTM isolated in 24 public hospitals in Madrid from 2013 to 2017. A total of 6.923 mycobacteria were isolated: 4535 (65.5%) NTM, and 2.388 (34.5%) Mycobacterium tuberculosis complex (MTB). Overall, 61 different NTM species were identified. The most frequently isolated species were Mycobacterium avium complex (47.7%), M. lentiflavum (12.2%), M. gordonae (9.2%), M. fortuitum (8.9%), and M. abscessus (3.9%). Whereas MTB cases were stable during the study period, the number of NTM isolates increased considerably from 930 isolates in 2013 to 1012 in 2017; a sharp increase occurred in the last year. The rise in NTM isolates was mostly due to M. lentiflavum, M. kansasii, and M. abscessus mainly isolated from respiratory specimens in patients older than 60. The increase in isolation rate of NTM in our region is consistent with the increasing rates reported worldwide in the last decades. The rise in NTM isolates was mainly attributed to M. lentiflavum but it also should be noted the increasing of species with high pathogenic potential such as M. kansasii and M. abscessus.


Assuntos
Infecções por Mycobacterium não Tuberculosas/epidemiologia , Infecções por Mycobacterium não Tuberculosas/microbiologia , Micobactérias não Tuberculosas/isolamento & purificação , Feminino , Humanos , Laboratórios Hospitalares , Masculino , Pessoa de Meia-Idade , Micobactérias não Tuberculosas/classificação , Estudos Retrospectivos , Espanha/epidemiologia , Tuberculose/epidemiologia , Tuberculose/microbiologia
8.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-31471242

RESUMO

OBJECTIVES: To evaluate benefits for the patient and the economic impact for the implementation of a wide awake local anesthesia no tourniquet (WALANT) hand surgery compared to traditional major outpatient circuit. METHODS: A prospective cohort study was planned comparing 150 cases of ambulatory hand surgery (carpal tunnel and trigger finger) using WALANT technique intervention out from the operating room; with another 150 which underwent intervention, outpatient setting, with preoperative evaluation, sedation and tourniquet, in the operation room. Preoperative, intraoperative and postoperative pain was monitored, as well as the days that required postoperative analgesia.The resources used and costs were evaluated. Satisfaction was evaluated using a specific survey. RESULTS: The pain during the surgery was equivalent for both groups and was significantly lower postoperatively for the WALANT group, with less need for the use of analgesics. Satisfaction was greater for the local anesthesia group. The use of personnel resources and hospital material was less for the WALANT group, with total saving calculated by 1,019€ per patient. CONCLUSIONS: Procedures such as carpal tunnel surgery and trigger finger surgery can be safely performed using wide awake surgery. Patient satisfaction is higher to conventional procedure in the operation room. Pain control is excellent, especially during the postoperative period. WALANT technique for hand surgery represents a benefit for the patient in comfort, timeliness and no need for preoperative tests or evaluation. In addition, it represents a significant savings in hospital resources.


Assuntos
Anestesia Local , Síndrome do Túnel Carpal/cirurgia , Dedo em Gatilho/cirurgia , Feminino , Humanos , Masculino , Procedimentos Ortopédicos/métodos , Estudos Prospectivos
9.
J Hosp Infect ; 100(4): 451-455, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30179655

RESUMO

Mycobacterium chimaera is involved in a worldwide alert due to contaminated heater-cooler units. A real-time polymerase chain reaction (RT-PCR)-based procedure was implemented to survey undetected cases of M. chimaera infection. PCR was negative in the 59 prosthetic heart valves from patients with PCR-16SrRNA-negative infective endocarditis. PCR identified M. chimaera in one of 15 clinically significant retrospective Mycobacterium avium-Mycobacterium intracellulare complex isolates, which corresponded to a patient who had undergone heart valve replacement in a different institution. Whole-genome sequencing demonstrated that he was the first case in Spain with involvement of the strain responsible for the global outbreak. These results highlight the relevance of retrospective tracking for undetected M. chimaera infections.


Assuntos
Infecções por Mycobacterium não Tuberculosas/diagnóstico , Micobactérias não Tuberculosas/isolamento & purificação , Infecções Relacionadas à Prótese/diagnóstico , Reação em Cadeia da Polimerase em Tempo Real , Idoso , Animais , Próteses Valvulares Cardíacas/efeitos adversos , Humanos , Masculino , Infecções por Mycobacterium não Tuberculosas/microbiologia , Micobactérias não Tuberculosas/genética , Infecções Relacionadas à Prótese/microbiologia , Estudos Retrospectivos , Espanha/epidemiologia , Sequenciamento Completo do Genoma
10.
Mutat Res Rev Mutat Res ; 775: 1-10, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29555025

RESUMO

Prostate cancer (PC) is one of the most common cancers worldwide. The observed variability in progression and responses to the same treatment between patients underlie the genetic heterogeneity of the disease. Nowadays, screening and follow-up biomarkers in PC are still having a deep lack of information, which makes difficult the cancer diagnosis, prognosis and the selection of the most suitable therapies. This is making that currently unnecessary biopsies, over-treatments and hormonoresistances have high rates of prevalence among patients. New biomarkers are urgently needed and in this sense genomic biomarkers could be the most suitable tools. These genetic markers will be helpful for improving the precision of prognostic and the predictive current tools which are employed in the clinical practice. A recent literature search up was conducted, including clinical trials and pre-clinical basic research studies. Keywords included germline variants, prostate cancer, biomarkers, androgen deprivation therapy, screening and liquid biopsy; among others. We have reviewed how germline variants, CNVs and repetitive regions are relevant to prostate carcinogenesis, treatment and progression. Moreover, we have also considered novel biomarkers for PC prognosis based on differentially expressed genes. Finally, we have included new strategies in recent markers of liquid biopsy or updated technologies for minimal samples analysis. The improvement of genetic markers use and their application to the clinical practice, will enhance the variability of simple, non-invasive, tools such as liquid biopsy and germline variants, these will reduce the number of PC needle biopsies and current over-treatments that are usual in the management of this cancer.


Assuntos
Biomarcadores Tumorais/genética , Biomarcadores Tumorais/metabolismo , Neoplasias da Próstata/genética , Neoplasias da Próstata/metabolismo , Animais , Marcadores Genéticos , Humanos , Masculino , Neoplasias da Próstata/patologia , Neoplasias da Próstata/terapia
11.
Clin Microbiol Infect ; 24(6): 599-603, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29174730

RESUMO

BACKGROUND: The implementation of MALDI-TOF MS for microorganism identification has changed the routine of the microbiology laboratories as we knew it. Most microorganisms can now be reliably identified within minutes using this inexpensive, user-friendly methodology. However, its application in the identification of mycobacteria isolates has been hampered by the structure of their cell wall. Improvements in the sample processing method and in the available database have proved key factors for the rapid and reliable identification of non-tuberculous mycobacteria isolates using MALDI-TOF MS. AIMS: The main objective is to provide information about the proceedings for the identification of non-tuberculous isolates using MALDI-TOF MS and to review different sample processing methods, available databases, and the interpretation of the results. SOURCES: Results from relevant studies on the use of the available MALDI-TOF MS instruments, the implementation of innovative sample processing methods, or the implementation of improved databases are discussed. CONTENT: Insight about the methodology required for reliable identification of non-tuberculous mycobacteria and its implementation in the microbiology laboratory routine is provided. IMPLICATIONS: Microbiology laboratories where MALDI-TOF MS is available can benefit from its capacity to identify most clinically interesting non-tuberculous mycobacteria in a rapid, reliable, and inexpensive manner.


Assuntos
Micobactérias não Tuberculosas/isolamento & purificação , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz/métodos , Técnicas Bacteriológicas , Humanos , Infecções por Mycobacterium não Tuberculosas/diagnóstico , Fluxo de Trabalho
12.
Methods Mol Biol ; 1634: 283-303, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28819860

RESUMO

Cancer is a leading cause of disease worldwide; however, nowadays many points of its initiation processes are unknown. In this chapter, we are focusing on the role of liquid biopsies in cancer detection and progression. CTCs are one of the main components of liquid biopsies, they represent a subset of tumor cells that have acquired the ability to disseminate from the primary tumor and intravasate to the circulatory system. The greatest challenge in the detection of CTCs is their rarity in the blood. Human blood consists of white blood cells (5-10 × 106/mL), red blood cells (5-9 × 109/mL), and platelets (2.5-4 × 108/mL); very few CTCs will be present even in patients with known metastatic disease, with often less than one CTC per mL of blood. CTCs are found in frequencies on the order of 1-10 CTCs per mL of whole blood in patients with metastatic disease, and it is reduced in half for non-metastatic stages. Therefore, accurate methodologies for their capture and analysis are really important. The main aim of the present chapter is to describe different methodologies for CTCs capturing and analysis.


Assuntos
Separação Celular/métodos , Desenho de Equipamento , Técnicas Analíticas Microfluídicas/instrumentação , Neoplasias/diagnóstico , Células Neoplásicas Circulantes/patologia , Anticorpos Monoclonais/química , Anticorpos Monoclonais/metabolismo , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/imunologia , Biomarcadores Tumorais/metabolismo , Contagem de Células , Linhagem Celular Tumoral , Separação Celular/instrumentação , Sobrevivência Celular , Centrifugação com Gradiente de Concentração/métodos , Molécula de Adesão da Célula Epitelial/genética , Molécula de Adesão da Célula Epitelial/imunologia , Molécula de Adesão da Célula Epitelial/metabolismo , Transição Epitelial-Mesenquimal/genética , Receptores ErbB/genética , Receptores ErbB/imunologia , Receptores ErbB/metabolismo , Ficoll/química , Corantes Fluorescentes/química , Humanos , Imunoensaio , Queratinas/genética , Queratinas/imunologia , Queratinas/metabolismo , Neoplasias/sangue , Neoplasias/imunologia , Neoplasias/patologia , Células Neoplásicas Circulantes/imunologia , Células Neoplásicas Circulantes/metabolismo , Ligação Proteica
13.
J Dent Res ; 96(12): 1445-1450, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28759311

RESUMO

Previous studies demonstrated that chondroitin sulfate proteoglycans (CSPGs) on apical surfaces of palatal medial edge epithelial (MEE) cells were necessary for palatal adhesion. In this study, we identified 2 proteoglycans, biglycan and decorin, that were expressed in the palatal shelves prior to adhesion. In addition, we established that these proteoglycans were dependent on transforming growth factor ß (TGFß) signaling. Laser capture microdissection was used to collect selected palatal epithelial cells from embryonic mouse embryos at various palate development stages. The expression of specific messenger RNA (mRNA) for biglycan and decorin was determined with quantitative real-time polymerase chain reaction. The TGFßrI kinase inhibitor (SB431542) was used in palatal organ cultures to determine if blocking TFGß signaling changed biglycan and decorin distribution. Immunohistochemistry of both biglycan and decorin revealed expression on the apical and lateral surfaces of MEE cells. Biglycan protein and mRNA levels peaked as the palatal shelves adhered. Decorin was less abundant on the apical epithelial surface and also had reduced mRNA levels compared to biglycan. Their proteins were not expressed on MEE cells of palates treated with SB431542, an inhibitor of TGFß signaling. The temporal expression of biglycan and decorin on the apical surface of MEE, combined with the evidence that these proteins were regulated through the TGFß pathway, indicated that they may be important for adhesion.


Assuntos
Biglicano/metabolismo , Adesão Celular/fisiologia , Decorina/metabolismo , Palato/citologia , Animais , Benzamidas/farmacologia , Dioxóis/farmacologia , Imuno-Histoquímica , Microdissecção e Captura a Laser , Camundongos , Palato/embriologia , RNA Mensageiro/metabolismo , Reação em Cadeia da Polimerase em Tempo Real , Transdução de Sinais , Fator de Crescimento Transformador beta/farmacologia
14.
J Microbiol Methods ; 139: 74-78, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28511895

RESUMO

PURPOSE: Genotypic methods have considerably improved the diagnosis of multidrug-resistant (MDR) tuberculosis. One of these tests is Anyplex II MTB/MDR/XDR (Anyplex). Our aim was to evaluate the diagnostic performance of this multiplex PCR. METHODS: We conducted our study on 47 MDR tuberculosis and 14 pan-susceptible strains. We evaluated the ability of Anyplex to detect resistance mutations in rpoB (rifampin [RIF]), katG and inhA (isoniazid [INH]), gyrA (fluoroquinolones [FLQ]), and rrs and eis (aminoglycosides [AMG]). We used the agar proportion method as gold standard. We also studied concordance with GenoType MTBDRplus (first line drugs) and MTBDRsl (second line drugs). DNA sequencing was applied to clarify discrepancies. RESULTS: All pan-susceptible strains were susceptible by Anyplex. Sensitivity and specificity of Anyplex for detection of resistance mutations were 97.9% and 100%, respectively, for RIF, 91.5% and 100% for INH, 80% and 100% for FLQ, and 50% and 99.7% for AMG. Concordance with GenoType was perfect for RIF, INH, and FLQ (kappa score, k=1.0) and moderate for AMG (k=0.48). Sensitivity and specificity for detection of MDR tuberculosis were 89.4% and 100%, respectively. DNA sequencing of the phenotypically resistant strains considered as susceptible by Anyplex, confirmed no mutations in the corresponding genes. CONCLUSIONS: Anyplex is a reliable assay for the detection of MDR tuberculosis and shows excellent concordance with GenoType. Anyplex reduces the time to diagnosis of MDR tuberculosis strains, as it is recommended by current guidelines on control of tuberculosis.


Assuntos
Antituberculosos/farmacologia , Proteínas de Bactérias/genética , Técnicas de Diagnóstico Molecular/métodos , Reação em Cadeia da Polimerase Multiplex/métodos , Mycobacterium tuberculosis/efeitos dos fármacos , Mycobacterium tuberculosis/genética , Tuberculose Resistente a Múltiplos Medicamentos/diagnóstico , DNA Bacteriano/genética , Farmacorresistência Bacteriana Múltipla/genética , Genótipo , Técnicas de Genotipagem/métodos , Humanos , Testes de Sensibilidade Microbiana , Mutação , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Análise de Sequência de DNA , Tuberculose Resistente a Múltiplos Medicamentos/microbiologia
15.
Clin Microbiol Infect ; 23(2): 92-97, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27746398

RESUMO

OBJECTIVE: Molecular epidemiology techniques in tuberculosis (TB) can identify high-risk strains that are actively transmitted. We aimed to implement a novel strategy to optimize the identification and control of multidrug-resistant (MDR) TB in a specific population. METHODS: We developed a strain-specific PCR tailored from whole genome sequencing (WGS) data to track a specific MDR prevalent strain in Equatorial Guinea (EG-MDR). RESULTS: The PCR was applied prospectively on remnants of GeneXpert reaction mixtures owing to the lack of culture facilities in Equatorial Guinea. In 147 (93%) of 158 cases, we were able to differentiate between infection by the EG-MDR strain or by any other strain and found that 44% of all rifampicin-resistant TB cases were infected by EG-MDR. We also analysed 93 isolates obtained from Equatorial Guinea 15 years ago, before MDR-TB had become the problem it is today. We found that two of the scarce historical MDR cases were infected by EG-MDR. WGS revealed low variability-six single nucleotide polymorphisms acquired by this strain over 15 years-likely because of the lack in the country of a specific program to treat MDR-TB. CONCLUSIONS: Our novel strategy, which integrated WGS analysis and strain-specific PCRs, represents a low-cost, rapid and transferable strategy that allowed a prospective efficient survey and fast historical analysis of MDR-TB in a population.


Assuntos
Genoma Bacteriano , Genômica , Mycobacterium tuberculosis/genética , Tuberculose Resistente a Múltiplos Medicamentos/epidemiologia , Tuberculose Resistente a Múltiplos Medicamentos/microbiologia , Alelos , Antituberculosos/farmacologia , Farmacorresistência Bacteriana/efeitos dos fármacos , Guiné Equatorial/epidemiologia , Genômica/métodos , Humanos , Testes de Sensibilidade Microbiana , Repetições Minissatélites , Tipagem de Sequências Multilocus , Mycobacterium tuberculosis/efeitos dos fármacos , Reação em Cadeia da Polimerase/métodos , Polimorfismo de Nucleotídeo Único , Prevalência
16.
Clin Microbiol Infect ; 21(2): 147.e1-7, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25658553

RESUMO

The analysis of microevolution events, its functional relevance and impact on molecular epidemiology strategies, constitutes one of the most challenging aspects of the study of clonal complexity in infection by Mycobacterium tuberculosis. In this study, we retrospectively evaluated whether two improved sampling schemes could provide access to the clonal complexity that is undetected by the current standards (analysis of one isolate from one sputum). We evaluated in 48 patients the analysis by mycobacterial interspersed repetitive unit-variable number tandem repeat of M. tuberculosis isolates cultured from bronchial aspirate (BAS) or bronchoalveolar lavage (BAL) and, in another 16 cases, the analysis of a higher number of isolates from independent sputum samples. Analysis of the isolates from BAS/BAL specimens revealed clonal complexity in a very high proportion of cases (5/48); in most of these cases, complexity was not detected when the isolates from sputum samples were analysed. Systematic analysis of isolates from multiple sputum samples also improved the detection of clonal complexity. We found coexisting clonal variants in two of 16 cases that would have gone undetected in the analysis of the isolate from a single sputum specimen. Our results suggest that analysis of isolates from BAS/BAL specimens is highly efficient for recording the true clonal composition of M. tuberculosis in the lungs. When these samples are not available, we recommend increasing the number of isolates from independent sputum specimens, because they might not harbour the same pool of bacteria. Our data suggest that the degree of clonal complexity in tuberculosis has been underestimated because of the deficiencies inherent in a simplified procedure.


Assuntos
Variação Genética , Mycobacterium tuberculosis/classificação , Mycobacterium tuberculosis/genética , Manejo de Espécimes/métodos , Tuberculose/microbiologia , Brônquios/microbiologia , Líquido da Lavagem Broncoalveolar/microbiologia , Genótipo , Humanos , Sequências Repetitivas Dispersas , Repetições Minissatélites , Tipagem Molecular , Estudos Retrospectivos , Escarro/microbiologia
17.
Tumour Biol ; 36(2): 711-8, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25286758

RESUMO

Recent technological advances have made it possible to detect circulating tumor cells (CTCs) as a prognostic marker in operable breast cancer patients. Whether the presence of CTCs in cancer patients correlates with molecular alterations in the primary tumor has not been widely explored. We identified 14 primary breast cancer specimens with known CTC status, in order to evaluate the presence of differential genetic aberrations by using SNP array assay. There was a global increase of altered genome, CNA, and copy-neutral loss of heterozygosity (cn-LOH) observed in the CTC-positive (CTC(+)) versus CTC-negative (CTC(-)) cases. As the preliminary results showed a higher proportion of copy number alteration (CNA) at 8q24 (MYC loci) and the available evidence supporting the role of MYC in the processes cancer metastases is conflicting, MYC status was determined in tissue microarray sections in a larger series of patients (n = 49) with known CTC status using FISH. MYC was altered in 62% (16/26) CTC(+) patients and in 43% (6/14) CTC(-) patients (p = 0.25). Based on the observation in our study, future studies involving a larger number of patients should be performed in order to definitively define if this correlation exists.


Assuntos
Neoplasias da Mama/genética , Variações do Número de Cópias de DNA/genética , Genes myc/genética , Perda de Heterozigosidade/genética , Adulto , Idoso , Neoplasias da Mama/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Metástase Neoplásica , Células Neoplásicas Circulantes , Polimorfismo de Nucleotídeo Único/genética
18.
Food Microbiol ; 46: 246-253, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25475293

RESUMO

In this investigation, the effect of microbiological factors (strain, growth phase, exposition to sublethal stresses, and photorepair ability), treatment medium characteristics (pH, water activity, and absorption coefficient), and processing parameters (dose and temperature) on the UV resistance of Listeria monocytogenes was studied. The dose to inactivate 99.99% of the initial population of the five strains tested ranged from 21.84 J/mL (STCC 5672) to 14.66 J/mL (STCC 4031). The UV inactivation of the most resistant strain did not change in different growth phases and after exposure to sublethal heat, acid, basic, and oxidative shocks. The pH and water activity of the treatment medium did not affect the UV resistance of L. monocytogenes, whereas the inactivation rate decreased exponentially with the absorption coefficient. The lethal effect of UV radiation increased synergistically with temperature between 50 and 60 °C (UV-H treatment). A UV-H treatment of 27.10 J/mL at 55 °C reached 2.99 and 3.69 Log10 inactivation cycles of L. monocytogenes in orange juice and vegetable broth, and more than 5 Log10 cycles in apple juice and chicken broth. This synergistic effect opens the possibility to design UV combined processes for the pasteurization of liquid foods with high absorptivity.


Assuntos
Bebidas/microbiologia , Irradiação de Alimentos/métodos , Listeria monocytogenes/efeitos da radiação , Verduras/química , Meios de Cultura/química , Concentração de Íons de Hidrogênio , Listeria monocytogenes/crescimento & desenvolvimento , Viabilidade Microbiana/efeitos da radiação , Temperatura , Raios Ultravioleta
19.
Climacteric ; 17(4): 336-41, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24313640

RESUMO

OBJECTIVE: The role of menopausal hormone therapy (HT) on vertebral fracture prevention after treatment discontinuation is controversial. The aim of this study was to assess the incidence of vertebral fracture in a group of women who received HT in early menopause compared with another group who did not receive such treatment after 20 years of follow-up. SUBJECTS AND METHODS: In 1990, we included 177 patients aged 43-57 years old (mean 49.1 ± 3.9 years) in a prospective study to evaluate the effect of different HT regimens on bone metabolism and mineral density. After 20-21 years, a total of 49 patients from the initial study were retrieved. These patients were divided into two groups: the first group included women who had taken HT, and those who constituted the control groups and had not taken HT formed the second group. Clinical and demographic data were analyzed and vertebral fracture was assessed by radiology using the Genant semiquantitative scale. RESULTS: Of the 49 patients enrolled, 32 (65.3%) received HT for an average of 5.5 (± 2.96) years while the 17 (34.7%) remaining belonged to the control group without treatment. A higher rate of vertebral fracture was observed in the group receiving HT (p = 0.03). Depending on the degree of fracture (Genant semiquantitative method), subsequent analysis by subgroups corroborated the higher rate in the group receiving HT in all cases (p < 0.05). Multivariate analysis ruled out the effect of the clinical and demographic variables (current age, age at menopause, body mass index, type of menopause and drugs for the treatment of osteoporosis) in the final result. CONCLUSION: In spite of the fact that this study does not have a large enough sample, our data suggest that HT used in the early years of menopause does not present a long-term protective effect on vertebral fracture after discontinuing treatment.


Assuntos
Densidade Óssea/efeitos dos fármacos , Terapia de Reposição de Estrogênios , Menopausa , Osteoporose Pós-Menopausa , Fraturas da Coluna Vertebral , Adulto , Idoso , Terapia de Reposição de Estrogênios/métodos , Terapia de Reposição de Estrogênios/estatística & dados numéricos , Feminino , Seguimentos , Humanos , Incidência , Modelos Logísticos , Pessoa de Meia-Idade , Osteoporose Pós-Menopausa/complicações , Osteoporose Pós-Menopausa/diagnóstico , Osteoporose Pós-Menopausa/tratamento farmacológico , Osteoporose Pós-Menopausa/metabolismo , Estudos Prospectivos , Radiografia , Índice de Gravidade de Doença , Espanha/epidemiologia , Fraturas da Coluna Vertebral/epidemiologia , Fraturas da Coluna Vertebral/etiologia , Fraturas da Coluna Vertebral/prevenção & controle , Coluna Vertebral/diagnóstico por imagem , Coluna Vertebral/metabolismo , Tempo , Resultado do Tratamento , Suspensão de Tratamento
20.
ENFURO: Rev. Asoc. Esp. A.T.S. Urol ; (125): 24-28, nov. 2013.
Artigo em Espanhol | IBECS | ID: ibc-120799

RESUMO

La incontinencia urinaria, entendida como cualquier pérdida involuntaria de orina, constituye un problema médico y social importante. Puede clasificarse en incontinencia urinaria de esfuerzo, incontinencia urinaria de urgencia e incontinencia urinaria mixta, principalmente. Las proporciones de estos tres tipos principales de incontinencia urinaria son difíciles de establecer y varían notablemente según las fuentes, pero podrían estar en torno al 40, al 33 y al 20%, respectivamente. Su diagnóstico requiere de una correcta historia clínica y exploración física, junto con algunas exploraciones complementarias. El primer escalón terapéutico lo constituyen las medidas higiénico-dietéticas y las técnicas de modificación de la conducta. El tratamiento farmacológico es específico para cada tipo de incontinencia urinaria, utilizándose anticolinérgicos e inhibidores de la recaptación de serotonina. Por último, las diferentes técnicas quirúrgicas tienen su papel ante el fracaso de los tratamientos conservadores o frente a incontinencia urinaria severa (AU)


Urinary incontinence, understood as any involuntary loss of urine is an important medical and social problem. It can mainly be classified into urinary incontinence of effort, urinary incontinence of urgency and mixed urinary incontinence. The proportions of these three main types of urinary incontinence are difficult to establish and they vary notably according to the sources, but it might be about 40, 33 and 20%, respectively. Their diagnosis requires a correct medical record and physical exploration, together with some complementary explorations.The hygienic-dietetic measures and the techniques of behavior modification are the first therapeutic step. Pharmacological treatment is specific for each type of urinary incontinence, anticholinergic is being used and inhibitory of the serotonin uptake. Finally, different surgical techniques play their role in against the failure of the preserving treatments or against severe urinary incontinence (AU)


Assuntos
Humanos , Processo de Enfermagem/organização & administração , Incontinência Urinária/cirurgia , Enfermagem de Centro Cirúrgico/métodos , Cuidados de Enfermagem/métodos , Enfermagem Perioperatória/métodos , Telas Cirúrgicas
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