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1.
BJU Int ; 133(6): 638-645, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38438065

RESUMEN

OBJECTIVE: To explore the data comparing single- vs multi-use catheters for clean intermittent catheterisation (CIC), consider if the widespread use of single-use catheters is warranted given the cost and environmental impact, and put forth ideas for future consideration. METHODS: A primary literature review was performed in PubMed over the past 50 years. Studies that performed comparative analysis of single- and multi-use catheters were included in our review. All studies that reported on primary data were narratively summarised. RESULTS: A total of 11 studies were identified that reported on primary data comparing single- and multi-use catheters. There was no appreciable evidence suggesting reusable multi-use catheters were inferior to single-use catheters from an infection or usability standpoint. In addition, the environmental and monetary burden of single-use catheters is significant. CONCLUSIONS: The intermittent catheter landscape in the USA has a complex past: defined by policy, shaped by industry, yet characterised by a paucity of data demonstrating superiority of single-use over multi-use catheters. We believe that the aversion to reusable catheters by many patients and healthcare professionals is unwarranted, especially given the cost and environmental impact. Moving forward, better comparative data and more sustainable practices are needed.


Asunto(s)
Equipo Reutilizado , Humanos , Equipo Reutilizado/economía , Equipos Desechables/economía , Ambiente , Catéteres Urinarios , Cateterismo Uretral Intermitente/instrumentación
2.
Can J Urol ; 31(3): 11886-11891, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38912941

RESUMEN

INTRODUCTION: To define the smallest prostate needle biopsy (PNB) template necessary for accurate tissue diagnosis in men with markedly elevated PSA while decreasing procedural morbidity. MATERIALS AND METHODS: We performed a chart review of 80 men presenting with a newly elevated PSA > 100 ng/mL who underwent biopsy (PNB or metastatic site). For patients who underwent a full 12-core biopsy, simulated templates of 2- to 10-cores were generated by randomly drawing subsets of biopsies from their full-template findings. Templates were iterated to randomize core location and generate theoretical smaller template outcomes. Simulated biopsy results were compared to full-template findings to determine accuracy to maximal Grade Group (GG) diagnosis. RESULTS: Amongst those that underwent PNB, 93% had GG 4 or 5 disease. Twenty-two (40%) underwent a full 12-core biopsy, 20 (37%) a 6-core biopsy, and only 8 (15%) had fewer than six biopsy cores sampled at our hospital. Simulated templates with 2-, 4-, 6-, and 8-cores correctly diagnosed prostate cancer in all patients, and accurately identified the maximal GG in 82%, 91%, 95%, and 97% of patients, respectively. The biopsy locations most likely to detect maximal GG were medial mid and base sites bilaterally. A 4-core template of these sites would have accurately detected the maximal GG in 95% of patients relative to a full 12-core template. CONCLUSIONS: In men presenting with PSA > 100 ng/mL, decreasing from a 12-core to a 4-core prostate biopsy template results in universal cancer detection and minimal under-grading while theoretically decreasing procedural morbidity and cost.


Asunto(s)
Antígeno Prostático Específico , Próstata , Neoplasias de la Próstata , Humanos , Masculino , Neoplasias de la Próstata/patología , Antígeno Prostático Específico/sangre , Anciano , Persona de Mediana Edad , Biopsia con Aguja Gruesa/métodos , Próstata/patología , Estudios Retrospectivos , Clasificación del Tumor , Biopsia con Aguja/métodos
3.
J Hum Nutr Diet ; 2024 Apr 12.
Artículo en Inglés | MEDLINE | ID: mdl-38606553

RESUMEN

BACKGROUND: Optimal maternal nutrition is associated with better pregnancy and infant outcomes. Culinary nutrition programmes have potential to improve diet quality during pregnancy. Therefore, this research aimed to understand the experiences of cooking and the wants and needs of pregnant women regarding a cooking and food skills programme in the United Kingdom (UK) and Republic of Ireland (ROI). METHODS: Online focus group discussions with pregnant women and those who had experienced a pregnancy in the UK or ROI were conducted between February and April 2022. Two researchers conducted a thematic analysis. Seven focus groups with ROI participants (n = 24) and six with UK participants (n = 28) were completed. RESULTS: Five themes were generated. These were (1) cooking during pregnancy: barriers, motivators and solutions; (2) food safety, stress and guilt; (3) need for cooking and food skills programmes and desired content; (4) programme structure; (5) barriers and facilitators to programme participation. Overall, there was support for a programme focusing on broad food skills, including planning, food storage, using leftovers and to manage pregnancy-specific physiological symptoms such as food aversions. Participants emphasised the importance of inclusivity for a diverse range of people and lifestyles for programme design and content. CONCLUSIONS: Current findings support the use of digital technologies for culinary nutrition interventions, potentially combined with in-person sessions using a hybrid structure to enable the development of a support network.

4.
Trends Biochem Sci ; 44(4): 365-379, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30651181

RESUMEN

Toxins are substances produced from biological sources (e.g., animal, plants, microorganisms) that have deleterious effects on a living organism. Despite the obvious health concerns of being exposed to toxins, they are having substantial positive impacts in a number of industrial sectors. Several toxin-derived products are approved for clinical, veterinary, or agrochemical uses. This review sets out the case for toxins as 'friends' that are providing the basis of novel medicines, insecticides, and even nucleic acid sequencing technologies. We also discuss emerging toxins ('foes') that are becoming increasingly prevalent in a range of contexts through climate change and the globalisation of food supply chains and that ultimately pose a risk to health.


Asunto(s)
Toxinas Biológicas/efectos adversos , Toxinas Biológicas/uso terapéutico , Animales , Humanos , Toxinas Biológicas/química
5.
Neurourol Urodyn ; 42(2): 419-426, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36480150

RESUMEN

INTRODUCTION: Overactive bladder (OAB) is often suboptimally addressed by behavioral or pharmacological treatments. Less than 15% of patients choose to pursue advanced OAB therapy (sacral nerve stimulation [SNS], percutaneous tibial nerve stimulation [PTNS], and bladder onabotulinum toxin type-A [BTX-A]). We seek to better understand which factors are most important to patients when choosing a third-line therapy. METHODS/MATERIALS: We developed a conjoint analysis survey that included five attributes of the third-line options for OAB (SNS, PTNS, and BTX-A). We administered the survey to new patients with urinary incontinence at two institutions. A hierarchical Bayes random effects regression analysis was used to determine the relative importance of the attributes. A choice simulator was used to model which third-line treatment options patients preferred. We followed patients to see if they pursued their predicted treatment. RESULTS: A total of 108 patients completed the study of whom 89% were women. There was representation from all age groups. The most important attributes of decision-making were the frequency of future procedures, the risk of catheterization, and the need for a device. On market simulation, SNS was the preferred treatment option (47%), followed by PTNS (29%) and BTX-A (14%). Only 10% of patients did not find any treatment option acceptable. CONCLUSIONS: Frequent follow-up, risk of catheterization, and the need for a device were the most important attributes when making a decision on third-line OAB therapy. On market simulation, SNS is the preferred treatment for all age groups though the ultimate choice in third-line therapy may be affected by external factors.


Asunto(s)
Terapia por Estimulación Eléctrica , Estimulación Eléctrica Transcutánea del Nervio , Vejiga Urinaria Hiperactiva , Humanos , Femenino , Masculino , Vejiga Urinaria Hiperactiva/tratamiento farmacológico , Vejiga Urinaria Hiperactiva/etiología , Prioridad del Paciente , Teorema de Bayes , Terapia por Estimulación Eléctrica/métodos , Nervio Tibial , Resultado del Tratamiento
6.
Sensors (Basel) ; 23(11)2023 May 28.
Artículo en Inglés | MEDLINE | ID: mdl-37299875

RESUMEN

This study is directed towards developing a fast, non-destructive, and easy-to-use handheld multimode spectroscopic system for fish quality assessment. We apply data fusion of visible near infra-red (VIS-NIR) and short wave infra-red (SWIR) reflectance and fluorescence (FL) spectroscopy data features to classify fish from fresh to spoiled condition. Farmed Atlantic and wild coho and chinook salmon and sablefish fillets were measured. Three hundred measurement points on each of four fillets were taken every two days over 14 days for a total of 8400 measurements for each spectral mode. Multiple machine learning techniques including principal component analysis, self-organized maps, linear and quadratic discriminant analyses, k-nearest neighbors, random forest, support vector machine, and linear regression, as well as ensemble and majority voting methods, were used to explore spectroscopy data measured on fillets and to train classification models to predict freshness. Our results show that multi-mode spectroscopy achieves 95% accuracy, improving the accuracies of the FL, VIS-NIR and SWIR single-mode spectroscopies by 26, 10 and 9%, respectively. We conclude that multi-mode spectroscopy and data fusion analysis has the potential to accurately assess freshness and predict shelf life for fish fillets and recommend this study be expanded to a larger number of species in the future.


Asunto(s)
Inteligencia Artificial , Peces , Animales , Espectrometría de Fluorescencia/métodos
7.
Molecules ; 28(18)2023 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-37764433

RESUMEN

The contamination of oat crops by trichothecene mycotoxins, T-2 and HT-2 is an ongoing threat to our food safety. Within the industry, there are increasing concerns about the continued and growing presence of these mycotoxins occurring in oat crops due to climate change, farming practices and the handling of crops post-harvest. To safeguard human health, monitoring these mycotoxins in foodstuffs is paramount to ensure human exposure is limited. To achieve this, effective testing regimes must be established within the industry, consisting not only of rapid, reliable, and accurate analytical methods but also efficient sampling strategies. Four commercial rapid diagnostic kits were assessed against liquid chromatography coupled to mass spectrometry and included three lateral flow devices and one enzyme-linked immunosorbent assay. One-way ANOVA showed a p-value of 0.45 indicating no significant difference between the methods assessed. Qualitative analysis revealed test kits 1, 2, 3, and 4 showed false negative/false positive rates of 1.1/2.2, 7.6/0, 2.2/0, and 6.5/0 percent, respectively. Test Kit 1, the Neogen Reveal® Q+ MAX for T-2/HT-2 Kit provided the most reliable, accurate and cost-effective results. Furthermore, its ease of use and no requirement for technical skill makes it applicable for on-site testing.

8.
Compr Rev Food Sci Food Saf ; 22(5): 3984-4003, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37530543

RESUMEN

Food allergy remains a public health, business, and regulatory challenge. Risk analysis (RA) and risk management (RM) of food allergens are of great importance and analysis for food allergens is necessary for both. The current workhorse techniques for allergen analysis (enzyme linked immunosorbent assay [ELISA] and real-time polymerase chain reaction) exhibit recognized challenges including variable and antibody specific responses and detection of species DNA rather than allergen protein, respectively. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) enables protein identification, with potential for multiplex analysis and traceability to the System of International units (SI), aiding global measurement standardization. In this review, recent literature has been systematically reviewed to assess progress in LC-MS/MS and define the potential and benefits of matrix-assisted laser desorption/ionization-time-of-flight MS (MALDI-ToF-MS) technology for allergen analysis. MALDI-ToF-MS of initially intact protein is already applied to verify in silico-derived peptide sequences for LC-MS/MS analysis. We describe the origins of MALDI and its future perspectives, including affinity bead-assisted assays coupled to MALDI. Based on the proliferation of reliable and reproducible MALDI-based clinical applications, the technique should emulate the detection capability (sensitivity) of established allergen detection techniques, whilst reducing technical support and having equivalent multiplexing potential to competing techniques, for example, LC-MS/MS and ELISA. Although unlikely to offer inherent SI traceability, MALDI-based allergen analysis will complement existing MS approaches for allergens. Affinity bead-MALDI appears capable of higher throughput at lower cost per sample than almost any existing technique, enabling repeated sub-sampling as a way to reduce representative sampling issues.


Asunto(s)
Proteínas , Espectrometría de Masas en Tándem , Cromatografía Liquida/métodos , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción/métodos , Espectrometría de Masas en Tándem/métodos , Alérgenos/análisis , Rayos Láser
9.
J Urol ; 208(5): 1055-1074, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35748685

RESUMEN

PURPOSE: In April 2008, Medicare amended its policy for clean intermittent catheterization, increasing coverage from 4 reused catheters per month to up to 200 single-use catheters. The primary reason for the policy change was an assumed decrease in risk of urinary tract infection with single-use catheters. Given its economic/environmental impact (∼50-fold increase in cost and plastic waste) and a paucity of supporting evidence, we retrospectively evaluate the policy's effect in a prospective spinal cord injury registry. MATERIALS AND METHODS: We accessed data for the years 1995 to 2020 from the National Spinal Cord Injury Database focusing on 1-year follow-up in those unable to volitionally void after injury. We asked 2 questions: (1) Did hospitalizations for genitourinary reasons decrease after the clean intermittent catheterization policy change?; and (2) Did clean intermittent catheterization adoption and adherence increase after the clean intermittent catheterization policy change? RESULTS: During the study period, 2,657 of the 6,843 (38.8%) participants unable to volitionally void after spinal cord injury were hospitalized during their first follow-up year. Of the cohort performing clean intermittent catheterization, fewer individuals were hospitalized for genitourinary reasons prior to the clean intermittent catheterization policy change compared to after (10.6% vs 14.6%, P < .001), a finding that persisted on multivariate logistic regression (odds radio, 0.67, P < .001). In addition, the number of individuals performing clean intermittent catheterization at 1-year follow-up was less after the policy change compared to prior (57.0% vs 59.1%, P = .044). CONCLUSIONS: Our findings suggest the 2008 policy change shifting clean intermittent catheterization coverage from catheter reuse to single-use did not decrease hospitalizations for urinary tract infection or increase clean intermittent catheterization uptake in individuals with spinal cord injury.


Asunto(s)
Cateterismo Uretral Intermitente , Traumatismos de la Médula Espinal , Vejiga Urinaria Neurogénica , Infecciones Urinarias , Anciano , Humanos , Medicare , Plásticos , Políticas , Estudios Prospectivos , Estudios Retrospectivos , Estados Unidos/epidemiología , Cateterismo Urinario , Infecciones Urinarias/epidemiología , Infecciones Urinarias/etiología , Infecciones Urinarias/prevención & control
10.
J Urol ; 207(1): 137-143, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34428092

RESUMEN

PURPOSE: Recently, it has been observed that early infections after spinal cord injury (SCI) are associated with decreased long-term motor and sensory recovery. We investigate the effects of early infection after SCI on long-term bladder function. MATERIALS AND METHODS: We assessed data for the years 1995 to 2006 using the National Spinal Cord Injury Database. Postoperative wound infections and pneumonia were used to classify infections during the acute inpatient and rehabilitation periods. The effect of early infections on volitional voiding status at 1-year followup was assessed. Age, gender and neurological status at rehabilitation discharge (level of injury, American Spinal Injury Association Impairment Scale [AIS] and bilateral lower extremity motor scores) were included in multivariate logistic regression modeling to control for confounding. RESULTS: Of the 3,561 persons studied, 1,233 (34.6%) had an early infection. Those with an infection during early recovery were less likely to void than their noninfected counterparts if in the AIS A (0.3% vs 1.9%, p=0.010), AIS B (3.8% vs 10.5%, p=0.018) and AIS C (29.1% vs 37.3%, p=0.071) classification, while those with less complete injuries (AIS D) did not appear to be affected (62.6% vs 65.4%, p=0.456). Similar findings were found when stratifying by lower extremity motor scores and persisted on multivariate analysis, where early infection decreased the odds of volitional voiding at 1-year followup (OR=0.79, p=0.042). CONCLUSIONS: Infections during the early recovery period may modify volitional voiding at 1-year followup by 20% or more. Future investigations to confirm our findings and potentially evaluate mitigation strategies are warranted.


Asunto(s)
Infecciones/complicaciones , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/fisiopatología , Enfermedades de la Vejiga Urinaria/etiología , Micción , Adulto , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Factores de Tiempo , Volición , Adulto Joven
11.
Neurourol Urodyn ; 41(4): 1002-1011, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35332597

RESUMEN

PURPOSE: To measure the incidence and severity of urinary tract infections (UTI) in intermittent catheter (IC) users with neurogenic and non-neurogenic diagnoses. MATERIALS AND METHODS: Administrative health insurance claims data from the IBM MarketScan® Database between January 1, 2015 and  December 31, 2019, were analyzed. New IC-users with neurogenic lower urinary tract dysfunction (NLUTD); IC-users without NLUTD (non-NLUTD); and age-and-sex-matched general population without IC use (GEN) were compared. Individuals were followed for one year after initial IC utilization or random index date for GEN. The primary outcome was a patient seeing a physician or attending a hospital for a UTI (measured with a primary or secondary diagnosis code related to a UTI). UTI incidence, hospitalizations, and length of hospital stay were compared. RESULT: We identified 6944 NLUTD, 5102 non-NLUTD, and 120 426 GEN individuals. The annualized UTI incidence was higher in IC-users (54.9% NLUTD IC-users and 38.9% non-NLUTD IC-users) compared to GEN individuals (9.8%) (p < 0.001 between groups). Hospitalization for UTI was more common in NLUTD and non-LUTD (11.3% and 4.0%, respectively) compared with GEN individuals (1.0%) (p < 0.001 between groups). NLUTD individuals had a greater average length of hospital stay than non-NLUTD (2.2 ± 3.6 vs. 1.6 ± 2.1 days, p < 0.001). CONCLUSION: IC users had a significantly higher incidence of UTIs than the general population. NLUTD IC-users had a higher incidence of UTIs that required hospitalization compared to non-NLUTD individuals. Strategies to decrease the patient and healthcare burden of UTIs in those that catheterize should be prioritized.


Asunto(s)
Cateterismo Uretral Intermitente , Vejiga Urinaria Neurogénica , Infecciones Urinarias , Femenino , Humanos , Incidencia , Cateterismo Uretral Intermitente/efectos adversos , Masculino , Vejiga Urinaria Neurogénica/terapia , Infecciones Urinarias/epidemiología
12.
Anal Bioanal Chem ; 414(3): 1335-1345, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34748032

RESUMEN

Biopolymers based on polylactic acid (PLA) and starch have numerous advantages, such as coming from renewable sources or being compostable, though they can have deficiencies in mechanical properties, and for this reason, polyester resins are occasionally added to them in order to improve their properties. In this work, migration from a PLA sample and from another starch-based biopolymer to three different food simulants was studied. Attention was focused on the determination of oligomers. The analysis was first performed by ultraperformance liquid chromatography quadrupole-time-of-flight mass spectrometry (UPLC-Q-TOF-MS), which allowed the identification of the oligomers present in migration. Then, the samples were analyzed by two ambient desorption/ionization techniques directly coupled to mass spectrometry (ADI), direct analysis in real-time coupled to standardized voltage and pressure (DART-MS) and atmospheric pressure solids analysis probe (ASAP-MS). These methodologies were able to detect simultaneously the main oligomers migrants and their adducts in a very rapid and effective way. Nineteen different polyester oligomers, fourteen linear and five cyclic, composed of different combinations of adipic acid [AA], propylene glycol [PG], dipropylene glycol [DPG], 2,2-dibutyl-1,3-propanediol [DBPG], or isobutanol [i-BuOH] were detected in migration samples from PLA. In migration samples from starch-based biopolymer, fourteen oligomers from poly(butylene adipate co-terephthalate) polyester (PBAT) were identified, twelve cyclic and two linear. The results from ADI techniques showed that they are a very promising alternative tool to assess the safety and legal compliance of food packaging materials.


Asunto(s)
Embalaje de Alimentos , Poliésteres/análisis , Almidón/análisis , Adipatos/análisis , Cromatografía Líquida de Alta Presión , Contaminación de Alimentos/análisis , Espectrometría de Masas
13.
Anal Bioanal Chem ; 414(3): 1375-1388, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34816286

RESUMEN

A rapid analytical method was developed and validated for the analysis of eight bound nitrofurans in animal tissue, shortening laboratory turnaround times from 4 to 2 days. The majority of methodologies for nitrofuran analysis focus on the detection of only four drugs (nitrofurantoin, furazolidone, furaltadone and nitrofurazone), and is time-consuming given the 16-h overnight derivatisation step and a double liquid-liquid extraction. In this study, the narrow scope of analysis was addressed by including further four important nitrofuran drugs (nifursol, nitrofuroxazide, nifuraldezone and nitrovin). Full chromatographic separation was achieved for the metabolites of all eight nitrofurans, using phenyl-hexyl column chemistry and a rigorous optimisation of the mobile phase additives and gradient profile. The conventional, lengthy sample preparation was substantially shortened by replacing the traditional overnight water bath derivatisation with a rapid 2-h microwave-assisted reaction, followed by a modified-QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) extraction. This confirmatory method was fully validated in accordance with the new 2021/808/EC legislation, and was shown to perform satisfactorily when applied to incurred tissues. The decision limit (CCα) for the eight analytes ranged between 0.013 and 0.200 µg kg-1, showing abundant sensitivity given that the current RPA for nitrofurans is 0.5 µg kg-1. This innovative method can play a major role in the surveillance of the illegal use of nitrofuran drugs.


Asunto(s)
Carne/análisis , Nitrofuranos/análisis , Espectrometría de Masas en Tándem/métodos , Animales , Pollos , Cromatografía Líquida de Alta Presión/métodos , Residuos de Medicamentos/análisis , Límite de Detección , Microondas , Preparaciones Farmacéuticas/análisis
14.
Compr Rev Food Sci Food Saf ; 21(4): 3746-3769, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35808861

RESUMEN

Due to complex, valuable, and often extremely opaque supply chains, seafood is a commodity that has experienced a high prevalence of food fraud throughout the entirety of its logistics network. Fraud detection and prevention require an in-depth understanding of food supply chains and their vulnerabilities and risks so that food business operators, regulators, and other stakeholders can implement practical countermeasures. An analysis of historical criminality within a sector, product, or country is an important component and has not yet been conducted for the seafood sector. This study examines reported seafood fraud incidents from the European Union's Rapid Alert System for Food and Feed, Decernis's Food Fraud Database, HorizonScan, and LexisNexis databases between January 01, 2010 and December 31, 2020. Illegal or unauthorized veterinary residues were found to be the most significant issue of concern, with most reports originating from farmed seafood in Vietnam, China, and India. For internationally traded goods, border inspections revealed a significant frequency of reports with fraudulent or insufficient documentation, indicating that deceptive practices are picked up at import or export but are occurring further down the supply chain. Practices such as species adulteration (excluding veterinary residues), species substitution, fishery substitution, catch method fraud, and illegal, unreported, and unregulated fishing were less prevalent in the databases than evidenced in the scientific literature. The analysis demonstrates significant differences in outcomes depending on source and underlines a requirement for a standardized and rigorous dataset through which food fraud can be scrutinized to ensure enforcement, as well as industry and research resources are directed accurately. Practical Application: Levels of historic food fraud in a product, sector, supply chain node or geographic location provide an indication of historic criminality, the methods used and the location of reported frauds. This study provides an overview of historic levels of seafood fraud that can be used to inform seafood fraud prevention and mitigation activities by the food industry, regulators and other stakeholders.


Asunto(s)
Abastecimiento de Alimentos , Fraude , Industria de Procesamiento de Alimentos , Alimentos Marinos
15.
Compr Rev Food Sci Food Saf ; 21(6): 5199-5224, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-36215130

RESUMEN

Infrared (IR) spectroscopy is increasingly being used to analyze food crops for quality and safety purposes in a rapid, nondestructive, and eco-friendly manner. The lack of sensitivity and the overlapping absorption characteristics of major sample matrix components, however, often prevent the direct determination of food contaminants at trace levels. By measuring fungal-induced matrix changes with near IR and mid IR spectroscopy as well as hyperspectral imaging, the indirect determination of mycotoxins in food crops has been realized. Recent studies underline that such IR spectroscopic platforms have great potential for the rapid analysis of mycotoxins along the food and feed supply chain. However, there are no published reports on the validation of IR methods according to official regulations, and those publications that demonstrate their applicability in a routine analytical set-up are scarce. Therefore, the purpose of this review is to discuss the current state-of-the-art and the potential of IR spectroscopic methods for the rapid determination of mycotoxins in food crops. The study critically reflects on the applicability and limitations of IR spectroscopy in routine analysis and provides guidance to non-spectroscopists from the food and feed sector considering implementation of IR spectroscopy for rapid mycotoxin screening. Finally, an outlook on trends, possible fields of applications, and different ways of implementation in the food and feed safety area are discussed.


Asunto(s)
Micotoxinas , Micotoxinas/análisis , Contaminación de Alimentos/análisis , Productos Agrícolas
16.
Anal Chem ; 93(47): 15736-15743, 2021 11 30.
Artículo en Inglés | MEDLINE | ID: mdl-34726384

RESUMEN

Paramagnetic microspheres can be used in planar array fluorescence immunoassays for single or multiplex screening of food contaminants. However, no confirmation of the molecular identity is obtained. Coated blade spray (CBS) is a direct ionization mass spectrometry (MS) technique, and when combined with triple quadrupole MS/MS, it allows for rapid confirmation of food contaminants. The lack of chromatography in CBS, though, compromises the specificity of the measurement for unequivocal identification of contaminants, based on the European Union (EU) regulation. Therefore, a rapid and easy-to-use immuno-magnetic blade spray (iMBS) method was developed in which immuno-enriched paramagnetic microspheres replace the coating of CBS. The iMBS-MS/MS method was fully optimized, validated in-house following the EU 2021/808 regulation, and benchmarked against a commercial lateral flow immunoassay (LFIA) for on-site screening of DA. The applicability of iMBS-MS/MS was further demonstrated by analyzing incurred mussel samples. The combination of immunorecognition and MS/MS detection in iMBS-MS/MS enhances the measurement's selectivity, which is demonstrated by the rapid differentiation between the marine toxin domoic acid (DA) and its structural analog kainic acid (KA), which cannot be achieved with the LFIA alone. Interestingly, this first-ever reported iMBS-MS/MS method is generic and can be adapted to include any other immuno-captured food contaminant, provided that monoclonal antibodies are available, thus offering a complementary confirmatory analysis approach to multiplex immunoassay screening methods. Moreover, thanks to its speed of analysis, iMBS-MS/MS can bridge the logistics gap between future large-scale on-site testings using LFIAs and classical time-consuming confirmatory MS analysis performed in official control laboratories.


Asunto(s)
Bivalvos , Espectrometría de Masas en Tándem , Animales , Ácido Kaínico/análogos & derivados , Fenómenos Magnéticos , Microesferas
17.
J Urol ; 205(1): 191-198, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32648798

RESUMEN

PURPOSE: Colpocleisis is an obliterative surgical option for women with pelvic organ prolapse that is often performed in a frail population. However, because outcomes remain largely unknown we aimed to assess the durability and perioperative safety of colpocleisis in a large population based cohort. MATERIALS AND METHODS: All women undergoing colpocleisis and other pelvic organ prolapse repairs in California (2005-2011) were identified using the Office of Statewide Health Planning and Development data sets. Durability was defined as the absence of future pelvic organ prolapse repair after index repair for the duration of the data sets. Thirty-day morbidity was assessed by identifying readmissions, repeat surgeries and complications. A metric to assess frailty in large administrative databases was applied to assess the impact of frailty on outcomes. Colpocleisis outcomes were compared to other types of pelvic organ prolapse repairs by developing propensity score matched groups. RESULTS: Among the 2,707 women undergoing colpocleisis, reoperation for prolapse occurred in 47 (1.8%). At least 1 complication occurred in 11.1% of the cohort, with serious complications occurring in 2%. Frail patients were more likely to experience any complication (23.3% vs 10.3%, p <0.01) and a serious complication (5.0% vs 1.8%, p=0.02) and was the best predictor of morbidity. Colpocleisis was associated with a more durable repair (overall failure 1.8% vs 3.5%, p <0.01) with no difference in complication rates as compared to the matched cohort. CONCLUSIONS: Colpocleisis provides a more durable outcome than reconstructive pelvic organ prolapse repairs without increased perioperative morbidity. Frailty is a better predictor than age for perioperative complications after colpocleisis.


Asunto(s)
Fragilidad/epidemiología , Procedimientos Quirúrgicos Ginecológicos/efectos adversos , Prolapso de Órgano Pélvico/cirugía , Complicaciones Posoperatorias/epidemiología , Vagina/cirugía , Factores de Edad , Anciano , California/epidemiología , Conjuntos de Datos como Asunto , Femenino , Estudios de Seguimiento , Fragilidad/complicaciones , Fragilidad/diagnóstico , Procedimientos Quirúrgicos Ginecológicos/métodos , Procedimientos Quirúrgicos Ginecológicos/estadística & datos numéricos , Humanos , Readmisión del Paciente/estadística & datos numéricos , Prolapso de Órgano Pélvico/complicaciones , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/terapia , Reoperación/estadística & datos numéricos , Factores de Riesgo , Resultado del Tratamiento
18.
Neurourol Urodyn ; 40(6): 1643-1650, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-34139030

RESUMEN

OBJECTIVE: To conduct a conjoint analysis experiment to better understand the psychosocial priorities related to bladder management in individuals after spinal cord injury (SCI). METHODS: We developed a conjoint analysis survey that included 11 psychosocial attributes phrased in the context of bladder management (including attributes for urinary infections, and incontinence). We then performed a multi-center prospective cross-sectional study of adults with existing SCI which consisted of a baseline interview, followed by the online conjoint analysis survey (delivered through Sawtooth software). Hierarchical Bayes random effects regression analysis was used to determine the relative importance of the attributes. RESULTS: A total of 345 people complete the study. There was good representation of both men and women, and individuals with cervical and thoracic or lower lesions. The most important attribute was the frequency of urinary infections. Age, sex, and level of SCI were generally not related to the attributes measured in the study. In the subgroup of 256 patients who used a catheter for bladder management, significantly more importance was placed on urinary tract infections, time, fluid intake, and social life among indwelling catheter users compared to intermittent catheter users. CONCLUSIONS: Most bladder-related psychosocial priorities are not impacted by a patient's age, sex or level of SCI. Differences in psychosocial priorities between indwelling and intermittent catheter users may represent factors that should be focused on to optimize bladder management after SCI.


Asunto(s)
Traumatismos de la Médula Espinal , Vejiga Urinaria Neurogénica , Adulto , Teorema de Bayes , Estudios Transversales , Femenino , Humanos , Masculino , Estudios Prospectivos , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/terapia , Vejiga Urinaria Neurogénica/etiología , Vejiga Urinaria Neurogénica/terapia , Cateterismo Urinario
19.
Compr Rev Food Sci Food Saf ; 20(1): 501-525, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33443796

RESUMEN

Tropane alkaloids (TAs) are secondary plant metabolites derived mainly from Solanaceae plant families, with the most virulent invasive species being Datura stramonium. Datura stramonium commonly grows in cereal fields and produce TAs (e.g., hyoscyamine and scopolamine) which may accidentally contaminate cereals (and cereal-based foods) at occasionally high levels. Dietary exposure to TAs can be toxic and depending on the dose ingested can cause outcomes ranging from anticholinergic effects to acute poisoning and death. In 2019, 315 adults became ill and another five adults died in Uganda following consumption of a "Super Cereal" (a fortified blended food) that was later confirmed to be contaminated by TAs-a scenario which provoked this holistic review on TAs in foodstuffs. Thus, this article provides information on the history, development, occurrences, exposures, and human legislative and health benchmarks for TAs. It describes control strategies for reducing TA contamination of agricultural commodities and resultant health implications following consumption of TA contaminated foodstuffs. Adequate application of food safety control measures (including maximum limits) and good practices, from the start of cereal cultivation through to the final stages of manufacturing of food products can aid in the reduction of seeing toxic plants including D. stramonium in cereal fields.


Asunto(s)
Alcaloides , Hiosciamina , Brotes de Enfermedades/prevención & control , Humanos , Tropanos , Uganda/epidemiología
20.
J Food Sci Technol ; 58(7): 2547-2554, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34194091

RESUMEN

Peanut and its processed products are recurrently contaminated with aflatoxins (AFs) which are of potential public health concern. Among the different types of AFs, Aflatoxin B1 (B1) is the most frequently detected in peanuts over the maximum level (ML), and thus has warranted considerable research interest in the domain of food safety. In this study, we investigated the decontamination of B1 in three naturally-incurred lots (4, 12, and 40 µg/kg) of peanuts by a range of cooking treatments, including frying, pressure cooking, and roasting. B1 concentrations were determined by ultra-high performance liquid chromatography- fluorescence detection. The method provided a limit of quantification of 0.25 µg/kg for B1, which was much lower than any of its national and international MLs. The recoveries of B1 in fresh and cooked peanuts (positive-control) were in the range of 90-100%. Overall, all the cooking methods demonstrated a significant reduction in B1 loads. The degree to which the processing methods reduced the B1 content followed the pattern: roasting with a combination of NaCl and citric acid > pressure-cooking with a combination of NaCl and citric acid > frying. As the cooking procedures did not involve any complicated steps or sophisticated equipment, these could be readily adopted for decontamination or reduction in the level of B1 for a safer consumption of peanuts at the household level without affecting the organoleptic properties.

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