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1.
J Cell Sci ; 134(4)2021 02 24.
Artículo en Inglés | MEDLINE | ID: mdl-33526715

RESUMEN

Cellular fibronectin (FN; also known as FN1) variants harboring one or two alternatively spliced so-called extra domains (EDB and EDA) play a central bioregulatory role during development, repair processes and fibrosis. Yet, how the extra domains impact fibrillar assembly and function of the molecule remains unclear. Leveraging a unique biological toolset and image analysis pipeline for direct comparison of the variants, we demonstrate that the presence of one or both extra domains impacts FN assembly, function and physical properties of the matrix. When presented to FN-null fibroblasts, extra domain-containing variants differentially regulate pH homeostasis, survival and TGF-ß signaling by tuning the magnitude of cellular responses, rather than triggering independent molecular switches. Numerical analyses of fiber topologies highlight significant differences in variant-specific structural features and provide a first step for the development of a generative model of FN networks to unravel assembly mechanisms and investigate the physical and functional versatility of extracellular matrix landscapes.This article has an associated First Person interview with the first author of the paper.


Asunto(s)
Empalme Alternativo , Fibronectinas , Células Cultivadas , Matriz Extracelular/metabolismo , Fibroblastos/metabolismo , Fibronectinas/genética , Fibronectinas/metabolismo , Humanos
2.
BMC Public Health ; 23(1): 1315, 2023 07 10.
Artículo en Inglés | MEDLINE | ID: mdl-37430245

RESUMEN

BACKGROUND: The aim of this paper was to map consumers' food hygiene practices from 10 European countries and evaluate which demographic groups are more likely to be exposed to foodborne pathogens and establish a ranking of adherence to food hygiene practices in 10 European countries. METHODS: The research design consisted of a cross-national quantitative consumer survey regarding food safety and hygiene practices during meal preparation (SafeConsume project) and was conducted in ten European countries (France, Denmark, Germany, Greece, Hungary, Norway, Portugal, Romania, Spain and UK). The survey questions were based on recommended hand hygiene practices and on observed practices from a field study performed in 90 European households from six of the countries covered by the survey (France, Hungary, Norway, Portugal, Romania, and UK). SPSS Statistics 26 (IBM Software Group, Chicago, IL) was used for the descriptive and regression analyses of the data. Regression analyses were used to check the relation between demographic characteristics, country of origin and self-reported hand hygiene practices. RESULTS: According to the regression models, families with elderly members aged over 65 showed a higher tendency to follow proper hand washing practices compared to families without elderly members. Meanwhile, families with children under the age of 6 reported being up to twice as likely to wash their hands at critical moments compared to families without children. Overall, taking into consideration the likelihood of washing hands after touching raw chicken and the percentages scores for proper hand cleaning methods and key moments for hand washing, the rank of the countries regarding proper hand hygiene practices was the following: Denmark, Greece, Norway, Romania, Hungary, Germany, UK, Portugal, France, and Spain. CONCLUSIONS: Information and education should point both at the key moments as suggested by the Royal Society for Public Health (RSPH) and the International Scientific Forum on Home Hygiene (IFH) and safe practices. Public health burden generated by improper hand washing may be significantly reduced if education is targeted on consumers' behaviour and practices.


Asunto(s)
Higiene de las Manos , Humanos , Europa (Continente) , Francia , Portugal , Comidas
3.
Medicina (Kaunas) ; 59(2)2023 Feb 10.
Artículo en Inglés | MEDLINE | ID: mdl-36837540

RESUMEN

Background and Objectives: Cortisol, the stress hormone, is an important factor in initiating and maintaining lactation. Maternal suffering during pregnancy is predictive for the initiation and shorter duration of breastfeeding and can also lead to its termination. The aim of this study is to evaluate the relationship between the level of salivary cortisol in the third trimester of pregnancy and the initiation of breastfeeding in the postpartum period in a cohort of young pregnant women who wanted to exclusively breastfeed their newborns during hospitalization. Materials and Methods: For the study, full-term pregnant women were recruited between January and May 2022 in the Obstetrics and Gynecology Clinic of the Mureș County Clinical Hospital. Socio-demographic, clinical obstetric and neonatal variables were collected. Breastfeeding efficiency was assessed using the LATCH Breastfeeding Assessment Tool at 24 and 48 h after birth. The mean value of the LATCH score assessed at 24 and 48 h of age was higher among mothers who had a higher mean value of salivary cortisol measured in the third trimester of pregnancy (p < 0.05). A multivariate logistic regression model was used to detect risk factors for the success of early breastfeeding initiation. Results: A quarter of pregnant women had a salivary cortisol level above normal limits during the third trimester of pregnancy. There is a statistically significant association between maternal smoking, alcohol consumption during pregnancy and the level of anxiety or depression. Conclusions: The most important finding of this study was that increased salivary cortisol in the last trimester of pregnancy was not associated with delayed initiation/absence of breastfeeding.


Asunto(s)
Lactancia Materna , Hidrocortisona , Embarazo , Femenino , Recién Nacido , Humanos , Lactancia Materna/psicología , Tercer Trimestre del Embarazo , Madres/psicología , Ansiedad , Estrés Psicológico/psicología
4.
Medicina (Kaunas) ; 59(6)2023 May 24.
Artículo en Inglés | MEDLINE | ID: mdl-37374213

RESUMEN

Pregnancy represents a psychologically and emotionally vulnerable period, and research indicates that pregnant women have a higher prevalence of symptoms of anxiety and depression, debunking the myth that hormonal changes associated with pregnancy protect the mother. In recent years, several researchers have focused on the study of prenatal anxiety/depression-emotional disorders manifested by mood lability and low interest in activities-with a high prevalence. The main objective of this research was to conduct an antenatal screening in a cohort of pregnant women hospitalized for delivery in order to assess the prevalence of anxiety and depression. The secondary objective was to identify the risk factors associated with depression and anxiety in women in the third trimester of pregnancy. We carried out a prospective study in which we evaluated 215 pregnant women in the third trimester of pregnancy hospitalized for childbirth at the Obstetrics and Gynecology Clinic of the Târgu-Mureș County Clinical Hospital. The research was carried out between December 2019 and December 2021. The results showed that age and the environment of origin are the strongest predictors of mental health during pregnancy (OR = 0.904, 95%CI: 0.826-0.991; p = 0.029). For women from urban areas, there is an increased probability of falling at a higher level on the dependent variable (moderate depression) (OR = 2.454, 95%CI: 1.086-5.545; p = 0.032). In terms of health behaviors, none of the variables were statistically significant predictors of the outcome variable. The study highlights the importance of monitoring mental health during pregnancy and identifying relevant risk factors to provide appropriate care to pregnant women and the need for interventions to support the mental health of pregnant women. Especially in Romania, where there is no antenatal or postnatal screening for depression or other mental health conditions, these results could be used to encourage the implementation of such screening programs and appropriate interventions.


Asunto(s)
Ansiedad , Depresión , Femenino , Embarazo , Humanos , Tercer Trimestre del Embarazo , Depresión/psicología , Estudios Transversales , Prevalencia , Estudios Prospectivos , Ansiedad/psicología , Factores de Riesgo
5.
Food Control ; 131: 108433, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34980942

RESUMEN

Our paper emphasizes the importance of the kitchen layout in facilitating consumers' food hygiene practices. A significant correlation was found between the sink placement (inside or outside the kitchen) and hygienic practices during food handling based on a survey performed on consumers from ten European countries, indicating that those who had the sink in the kitchen were more likely to perform proper hygiene practices than those who have not. The self-reported practices were supported by observed practices in 64 households from five European countries. The observational study combined with the examination of kitchen layouts revealed that the kitchen work triangle with its apexes represented by the kitchen sink, cooking stove and refrigerator, which is recommended for ergonomic reasons by architects and designers, did not necessarily support food hygiene practices in kitchens. Cross-contamination events were associated with the sink - countertop distances longer than 1 m. Based on this, a new kitchen triangle with its apexes represented by the kitchen sink, working place (usually countertop) and cooking stove, with the distance between the sink and the working place less than 1 m is proposed to be used as norm in kitchen designs for combining ergonomics with safety. This triangle is proposedly named the food safety triangle and is aimed to mitigate the risks of foodborne illnesses by creating an arrangement that facilitates hygiene practices. This study is the first to highlight the importance of implementing the concept of food safety in the kitchen design based on significant correlations between kitchen equipment placement and consumers' food safety practices.

6.
BMC Genomics ; 22(1): 117, 2021 Feb 12.
Artículo en Inglés | MEDLINE | ID: mdl-33579201

RESUMEN

BACKGROUND: High-pressure processing (HPP) is a commonly used technique in the food industry to inactivate pathogens, including L. monocytogenes. It has been shown that L. monocytogenes is able to recover from HPP injuries and can start to grow again during long-term cold storage. To date, the gene expression profiling of L. monocytogenes during HPP damage recovery at cooling temperature has not been studied. In order identify key genes that play a role in recovery of the damage caused by HPP treatment, we performed RNA-sequencing (RNA-seq) for two L. monocytogenes strains (barotolerant RO15 and barosensitive ScottA) at nine selected time points (up to 48 h) after treatment with two pressure levels (200 and 400 MPa). RESULTS: The results showed that a general stress response was activated by SigB after HPP treatment. In addition, the phosphotransferase system (PTS; mostly fructose-, mannose-, galactitol-, cellobiose-, and ascorbate-specific PTS systems), protein folding, and cobalamin biosynthesis were the most upregulated genes during HPP damage recovery. We observed that cell-division-related genes (divIC, dicIVA, ftsE, and ftsX) were downregulated. By contrast, peptidoglycan-synthesis genes (murG, murC, and pbp2A) were upregulated. This indicates that cell-wall repair occurs as a part of HPP damage recovery. We also observed that prophage genes, including anti-CRISPR genes, were induced by HPP. Interestingly, a large amount of RNA-seq data (up to 85%) was mapped to Rli47, which is a non-coding RNA that is upregulated after HPP. Thus, we predicted that Rli47 plays a role in HPP damage recovery in L. monocytogenes. Moreover, gene-deletion experiments showed that amongst peptidoglycan biosynthesis genes, pbp2A mutants are more sensitive to HPP. CONCLUSIONS: We identified several genes and mechanisms that may play a role in recovery from HPP damage of L. monocytogenes. Our study contributes to new information on pathogen inactivation by HPP.


Asunto(s)
Listeria monocytogenes , Microbiología de Alimentos , Industria de Procesamiento de Alimentos , Listeria monocytogenes/genética , Temperatura , Transcriptoma
7.
Compr Rev Food Sci Food Saf ; 20(3): 2716-2741, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33960652

RESUMEN

Nontyphoidal salmonellae are among the most prevalent foodborne pathogens causing gastrointestinal infections worldwide. A high number of cases and outbreaks of salmonellosis are associated with the consumption of eggs and egg products, and several of these occur at the household level. The aim of the current study is to critically evaluate the current status of knowledge on Salmonella in eggs from a consumer's perspective, analyzing the hazard occurrence and the good practices that should be applied to reduce salmonellosis risk. Following a HACCP (Hazard Analysis and Critical Control Point) based approach, some steps along the food journey were identified as Critical Consumer Handling (CCH)-steps in which consumers, through their behavior or choice, can significantly reduce the level of Salmonella in eggs and egg products. From shopping/collecting to consumption, each of these steps is discussed in this review to provide an evidence-based overview of risk factors of human salmonellosis related to egg consumption. The main message to consumers is to choose Salmonella-free eggs (those that some official entity or producer guarantees that does not contain Salmonella), when available, especially for dishes that are not fully heat treated. Second, as guaranteed Salmonella-free eggs are only available in a few countries, refrigerated storage from the point of collection and proper cooking will significantly reduce the risk of salmonellosis. This will require a revision of the actual recommendations/regulations, as not all ensure that eggs are maintained at temperatures that prevent growth of Salmonella from collection until the time of purchasing.


Asunto(s)
Intoxicación Alimentaria por Salmonella , Infecciones por Salmonella , Huevos , Humanos , Factores de Riesgo , Salmonella , Intoxicación Alimentaria por Salmonella/epidemiología , Infecciones por Salmonella/epidemiología
8.
BMC Genomics ; 21(1): 455, 2020 Jul 02.
Artículo en Inglés | MEDLINE | ID: mdl-32615922

RESUMEN

BACKGROUND: High pressure processing (HPP; i.e. 100-600 MPa pressure depending on product) is a non-thermal preservation technique adopted by the food industry to decrease significantly foodborne pathogens, including Listeria monocytogenes, from food. However, susceptibility towards pressure differs among diverse strains of L. monocytogenes and it is unclear if this is due to their intrinsic characteristics related to genomic content. Here, we tested the barotolerance of 10 different L. monocytogenes strains, from food and food processing environments and widely used reference strains including clinical isolate, to pressure treatments with 400 and 600 MPa. Genome sequencing and genome comparison of the tested L. monocytogenes strains were performed to investigate the relation between genomic profile and pressure tolerance. RESULTS: None of the tested strains were tolerant to 600 MPa. A reduction of more than 5 log10 was observed for all strains after 1 min 600 MPa pressure treatment. L. monocytogenes strain RO15 showed no significant reduction in viable cell counts after 400 MPa for 1 min and was therefore defined as barotolerant. Genome analysis of so far unsequenced L. monocytogenes strain RO15, 2HF33, MB5, AB199, AB120, C7, and RO4 allowed us to compare the gene content of all strains tested. This revealed that the three most pressure tolerant strains had more than one CRISPR system with self-targeting spacers. Furthermore, several anti-CRISPR genes were detected in these strains. Pan-genome analysis showed that 10 prophage genes were significantly associated with the three most barotolerant strains. CONCLUSIONS: L. monocytogenes strain RO15 was the most pressure tolerant among the selected strains. Genome comparison suggests that there might be a relationship between prophages and pressure tolerance in L. monocytogenes.


Asunto(s)
Conservación de Alimentos , Genoma Bacteriano , Listeria monocytogenes/genética , Sistemas CRISPR-Cas , Metilación de ADN , Genómica , Viabilidad Microbiana , Presión , RNA-Seq , Estándares de Referencia
9.
J Food Sci Technol ; 54(9): 2653-2660, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28928505

RESUMEN

This study shows that apart from acting as nutritional value improver, yeast ß-glucan can be successfully used to reformulate meat products. When added to meat batters, yeast derived ingredients containing ß-glucans (GOLDCELL® IY B and GOLDCELL® BETA GLUCAN) improved the emulsifying capacity (up to 5 increments), the water holding capacity (up to 8 increments) as well as the emulsion stability. A decrease in total fluid release up to 4.30% and 3.99%, respectively with GOLDCELL® IY B and GOLDCELL® BETA GLUCAN respectively, at 1.5% addition level was observed. A significant decrease in hardness and fracturability values was also observed, while maintaining the structural cohesiveness of the samples, in part due to the increase in humidity content. A maximum level of 3% ingredient mixture can be added to meat batter formulations without significant impact on sensory characteristics. Adding yeast ß-glucan to meat batters can allow food to decrease the NaCl and polyphosphate content in meat products.

10.
Am J Gastroenterol ; 111(1): 124-33, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26729547

RESUMEN

OBJECTIVES: Several recent celiac disease guidelines recommend the acquisition of duodenal bulb biopsies for diagnostics. This is in conflict with previously reported evidence and routine practice from the 1960s onward. We reopened the issue in a prospective multicenter study and used morphometric variables in evaluating the usefulness of bulb biopsies in children. We further sought to establish whether deposits of IgA targeting bulb transglutaminase 2 (TG2) could be of diagnostic help. METHODS: Diagnoses of celiac disease were based on clinic and distal duodenal histopathology statements. Centralized reading of villous height (VH) to crypt depth (CrD) ratios and IgA deposits was performed on anatomical duodenal bulb specimens. All children participating also underwent routine investigations for other diseases. RESULTS: Twenty-two children had celiac disease, and another 22 served as non-celiac disease controls. The quality of the anatomical bulb specimens was unsatisfactory for reliable morphometric measurements in 20 out of 44 (45%) patients even after recuttings. All celiac disease patients had VH:CrD<2.0 (mean 0.2) but also 10 out of 13 (77%) non-celiac control patients had an injured bulb mucosal lining (mean 1.3) even up to false-positive "flat lesion". Bulb IgA deposits were able to separate celiac disease from disease controls. CONCLUSIONS: Morphological injury is common in the anatomical bulb even without celiac disease, increasing the risk of false-positive diagnoses. Premature conclusions might have been drawn on current care guidelines as to celiac disease diagnosis based solely on anatomical bulb specimens. Bulb mucosal IgA targeting TG2 in poor quality biopsy specimens is a powerful clinical tool in finding celiac disease patients.


Asunto(s)
Enfermedad Celíaca/patología , Duodeno/patología , Adolescente , Biopsia , Niño , Preescolar , Duodeno/química , Femenino , Proteínas de Unión al GTP/inmunología , Humanos , Inmunoglobulina A/análisis , Masculino , Valor Predictivo de las Pruebas , Estudios Prospectivos , Proteína Glutamina Gamma Glutamiltransferasa 2 , Transglutaminasas/inmunología
11.
Biomarkers ; 21(2): 102-14, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26632636

RESUMEN

CONTEXT: Non-alcoholic fatty liver disease (NAFLD) is characterized by lipid accumulation in the liver which is accompanied by a series of metabolic deregulations. There are sustained research efforts focusing upon biomarker discovery for NAFLD diagnosis and its prognosis in order investigate and follow-up patients as minimally invasive as possible. OBJECTIVE: The objective of this study is to critically review proteomic studies that used mass spectrometry techniques and summarize relevant proteomic NAFLD candidate biomarkers. METHODS: Medline and Embase databases were searched from inception to December 2014. RESULTS: A final number of 22 records were included that identified 251 candidate proteomic biomarkers. Thirty-three biomarkers were confirmed - 14 were found in liver samples, 21 in serum samples, and two from both serum and liver samples. CONCLUSION: Some of the biomarkers identified have already been extensively studied regarding their diagnostic and prognostic capacity. However, there are also more potential biomarkers that still need to be addressed in future studies.


Asunto(s)
Biomarcadores/análisis , Espectrometría de Masas/métodos , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Proteoma/análisis , Proteómica/métodos , Biomarcadores/sangre , Humanos , Hígado/metabolismo , Hígado/patología , Enfermedad del Hígado Graso no Alcohólico/sangre , Pronóstico
12.
J Drugs Dermatol ; 15(8): 931-8, 2016 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-27537992

RESUMEN

BACKGROUND: CF101, an adenosine A3 receptor agonist, is an orally bioavailable small molecule drug presenting an anti-psoriatic effect demonstrated in a Phase 2 clinical trial in psoriasis patients.
OBJECTIVE: To evaluate the safety and efficacy of CF101 treatment in a Phase 2/3 study in patients with moderate to severe plaque-type psoriasis.
METHODS: This multicenter, double-blind, 2-segment, placebo-controlled study randomized subjects with moderate to severe plaque psoriasis to CF101 1 or 2 mg, or placebo twice daily. At either week 12 (Segment 1) or 16 (Segment 2), the placebo group crossed over to CF101 BID through week 32 in an open-label fashion. At week 12, following an interim analysis, the CF101 1mg group was discontinued due to futility. The primary endpoint was proportion of patients achieving ≥75% improvement in Psoriasis Area Severity Index (PASI 75). Efficacy testing was performed using the Cochran-Mantel Haenszel test, the primary analysis of PASI 75 was performed at the 0.035 significance level.
RESULTS: CF101 had an excellent safety profile at all tested dosages with a profile similar to the placebo group. The most common adverse events were infections and gastrointestinal events, and there was no cumulative intolerance over the 32-week dosing period. The study did not meet the primary endpoint of PASI 75 at week 12 (2 mg: 8.5% vs. placebo: 6.9%, P=0.621). However, at week 32, PASI mean percent improvement with CF101 2 mg was 57% (P<0.001) compared to baseline, with linear improvement in PASI 50 (63.5%), 75 (35.5%), 90 (24.7%), and 100 (10.6%).
CONCLUSIONS: Oral CF101 was found to be safe and very well tolerated, demonstrating evidence of efficacy in patients with moderate to severe plaque psoriasis through 32 weeks of treatment.

J Drugs Dermatol. 2016;15(8):931-938.


Asunto(s)
Adenosina/análogos & derivados , Psoriasis/diagnóstico , Psoriasis/tratamiento farmacológico , Estadística como Asunto , Adenosina/administración & dosificación , Administración Oral , Adulto , Anciano , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Adulto Joven
13.
Foodborne Pathog Dis ; 13(3): 148-55, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26741503

RESUMEN

Food illegally brought into the European Union, mainly in the personal luggage of travelers, represents a potential threat to consumers' health. The aim of this study was to investigate the presence of five pathogens in food brought into the European Union by Moldavian citizens as personal goods and illegally sold in Romania in the vicinity of the border. The occurrence of Staphylococcus aureus and Listeria monocytogenes was 7.5% and 8%, while Campylobacter spp., Escherichia coli O157:H7, and Salmonella spp. were absent in all samples. L. monocytogenes sequence type 2, 9, 121, and 155, highly prevalent among foodstuffs worldwide, was also present among isolates from ready-to-eat food illegally sold in Romania, even at the same date of sampling, indicating cross-contamination during food handling. S. aureus spa types t449, t304, and t524 were most often isolated from raw-milk cheeses contaminated with 10(3)-10(5) colony-forming units per gram, evidencing a contamination at herd level or unhygienic conditions during processing. S. aureus t011 and t3625, both included in the livestock-associated CC398, were isolated from pork lard and poultry meat. This study shows that cross-border trade from nonmember states represents a neglected route of transmission of foodborne pathogens into the European Union that could lead to sporadic or family-associated cases of disease.


Asunto(s)
Escherichia coli O157/aislamiento & purificación , Microbiología de Alimentos , Enfermedades Transmitidas por los Alimentos/epidemiología , Listeria monocytogenes/aislamiento & purificación , Salmonella/aislamiento & purificación , Staphylococcus aureus/aislamiento & purificación , Animales , Recuento de Colonia Microbiana/veterinaria , Unión Europea , Enfermedades Transmitidas por los Alimentos/microbiología , Humanos , Aves de Corral/microbiología , Carne Roja/microbiología , Rumanía/epidemiología , Porcinos
14.
J Environ Sci Health B ; 49(7): 457-67, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24813980

RESUMEN

Use of pharmaceuticals in animal production may cause an indirect route of contamination of food products of animal origin. This study aimed to assess, through mathematical modelling, the transfer of pharmaceuticals from contaminated soil, through plant uptake, into the dairy food production chain. The scenarios, model parameters, and values refer to contaminants in emission slurry production, storage time, immission into soil, plant uptake, bioaccumulation in the animal's body, and transfer to meat and milk. Modelling results confirm the possibility of contamination of dairy cow's meat and milk due the ingestion of contaminated feed by the cattle. The estimated concentration of pharmaceutical residues obtained for meat ranged from 0 to 6 ng kg(-1) for oxytetracycline, from 0.011 to 0.181 µg kg(-1) for sulfamethoxazole, and from 4.70 to 11.86 µg kg(-1) for ketoconazole. The estimated concentrations for milk were: zero for oxytetracycline, lower than 40 ng L(-1) for sulfamethoxazole, and from 0.98 to 2.48 µg L(-1) for ketoconazole. Results obtained for the three selected pharmaceuticals indicate a minor risk for human health. This study showed that supply chain modelling could be an effective tool in assessing the indirect contamination of feedstuff and animal products by residues of pharmaceuticals. The model can easily be adjusted to other contaminants and supply chain and, in this way, present a valuable tool to underpin decision making.


Asunto(s)
Monitoreo del Ambiente , Análisis de los Alimentos/métodos , Contaminación de Alimentos/análisis , Abastecimiento de Alimentos , Modelos Teóricos , Preparaciones Farmacéuticas/análisis , Alimentación Animal/análisis , Animales , Bovinos , Industria Lechera , Residuos de Medicamentos/análisis , Femenino , Carne/análisis , Leche/química , Agricultura Orgánica
15.
Foods ; 13(5)2024 Feb 28.
Artículo en Inglés | MEDLINE | ID: mdl-38472848

RESUMEN

Listeria monocytogenes is a foodborne pathogen that causes listeriosis, a group of human illnesses that appear more frequently in countries with better-developed food supply systems. This review discusses the efficacy of actual biocontrol methods combined with the main types of food involved in illnesses. Comments on bacteriophages, lactic acid bacteria, bacteriocins, essential oils, and endolysins and derivatives, as main biological antilisterial agents, are made bearing in mind that, using them, food processors can intervene to protect consumers. Both commercially available antilisterial products and solutions presented in scientific papers for mitigating the risk of contamination are emphasized. Potential combinations between different types of antilisterial agents are highlighted for their synergic effects (bacteriocins and essential oils, phages and bacteriocins, lactic acid bacteria with natural or synthetic preservatives, etc.). The possibility to use various antilisterial biological agents in active packaging is also presented to reveal the diversity of means that food processors may adopt to assure the safety of their products. Integrating biocontrol solutions into food processing practices can proactively prevent outbreaks and reduce the occurrences of L. monocytogenes-related illnesses.

16.
Nutrients ; 16(7)2024 Apr 06.
Artículo en Inglés | MEDLINE | ID: mdl-38613110

RESUMEN

The microbiota-gut-brain axis has received increasing attention in recent years through its bidirectional communication system, governed by the ability of gut microorganisms to generate and regulate a wide range of neurotransmitters in the host body. In this research, we delve into the intricate area of microbial endocrinology by exploring the dynamic oscillations in neurotransmitter levels within plasma and brain samples. Our experimental model involved inducing hyperthyroidism in mice after a "probiotic load" timeframe using two strains of probiotics (Lactobacillus acidophilus, Saccharomyces boulardii, and their combination). These probiotic interventions continued throughout the experiment and were intended to uncover potential modulatory effects on neurotransmitter levels and discern if certain probiotic strains exhibit any protection from hyperthyroidism. Moreover, we aimed to outline the eventual connections between the gut microbiota and the hypothalamus-pituitary-thyroid axis. As our study reveals, there are significant fluctuations in crucial neurotransmitters within the hyperthyroidism model, related to the specific probiotic strain or combination. These findings could support future therapeutic approaches, help healthcare professionals choose between different probiotic therapies, and also allow us proceed with caution when administering such treatments, depending on the health status of hyperthyroid patients.


Asunto(s)
Hipertiroidismo , Probióticos , Humanos , Animales , Ratones , Modelos Animales de Enfermedad , Hipertiroidismo/terapia , Encéfalo , Saccharomyces cerevisiae , Neurotransmisores
17.
Nat Cancer ; 5(2): 347-363, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38200244

RESUMEN

The introduction of the International Association for the Study of Lung Cancer grading system has furthered interest in histopathological grading for risk stratification in lung adenocarcinoma. Complex morphology and high intratumoral heterogeneity present challenges to pathologists, prompting the development of artificial intelligence (AI) methods. Here we developed ANORAK (pyrAmid pooliNg crOss stReam Attention networK), encoding multiresolution inputs with an attention mechanism, to delineate growth patterns from hematoxylin and eosin-stained slides. In 1,372 lung adenocarcinomas across four independent cohorts, AI-based grading was prognostic of disease-free survival, and further assisted pathologists by consistently improving prognostication in stage I tumors. Tumors with discrepant patterns between AI and pathologists had notably higher intratumoral heterogeneity. Furthermore, ANORAK facilitates the morphological and spatial assessment of the acinar pattern, capturing acinus variations with pattern transition. Collectively, our AI method enabled the precision quantification and morphology investigation of growth patterns, reflecting intratumoral histological transitions in lung adenocarcinoma.


Asunto(s)
Adenocarcinoma del Pulmón , Adenocarcinoma , Neoplasias Pulmonares , Humanos , Inteligencia Artificial , Estadificación de Neoplasias , Neoplasias Pulmonares/patología
18.
BMC Gastroenterol ; 13: 115, 2013 Jul 12.
Artículo en Inglés | MEDLINE | ID: mdl-23849178

RESUMEN

BACKGROUND: Coeliac disease (CD), due to its protean clinical manifestation, is still very under diagnosed in adults and delays in diagnosis may take years and even decades. Simple tools to find cases in primary care may help to identify patients for further diagnostic tests. We have evaluated the usefulness of an on site rapid fingertip whole blood point-of-care test (POCT) for such a purpose. METHODS: As CD is known to run within families, we tested 148 healthy relatives of 70 Romanian index cases with biopsy-proven CD (87% of all first-degree family members, median age 36 years) for the presence of circulating autoantibodies. In addition to performing the POCT (which measures blood erythrocyte self-TG2-autoantibody complexes) on site, blood was drawn for later evaluations of serum IgA-class endomysial antibodies (EMA). EMA-positive sera were further tested for transglutaminase 2 antibodies (TG2-IgA). All serological parameters were analyzed blindly in a centralized laboratory that had no knowledge of the on site POCT result. Endoscopic small intestinal biopsies was recommended for all POCT- or EMA-test positive subjects. RESULTS: In on site testing the POCT was positive in 12/148 first-degree relatives (8%) and all these subjects were also serum EMA-positive. A positive EMA test was found only in one other subject. All remaining 135 healthy first-degree relatives were negative for both POCT and EMA. Four subjects positive for both POCT and EMA were negative for TG2-IgA. Ten out of thirteen of the antibody-positive subjects agreed to undergo endoscopy. The POCT was found to be positive in 8/9 first-degree relatives having coeliac-type mucosal lesions of grade Marsh 2 (n = 3) or Marsh 3 (n = 6). The three POCT-positive subjects not agreeing to undergo endoscopy were also both EMA- and TG2-IgA-positive. CONCLUSION: The fingertip whole blood rapid POCT might fulfill the unmet need for a simple and cheap case-finding biomarker for early detection and presumptive diagnosis of CD. Confirmatory studies are warranted in adult case-finding in specialized outpatient clinics and in primary care.


Asunto(s)
Autoanticuerpos/sangre , Enfermedad Celíaca/diagnóstico , Proteínas de Unión al GTP/inmunología , Sistemas de Atención de Punto , Transglutaminasas/inmunología , Adolescente , Adulto , Anciano , Biomarcadores/sangre , Niño , Preescolar , Eritrocitos/enzimología , Humanos , Inmunoglobulina A/sangre , Lactante , Mucosa Intestinal/inmunología , Mucosa Intestinal/patología , Persona de Mediana Edad , Proteína Glutamina Gamma Glutamiltransferasa 2 , Adulto Joven
19.
J Pediatr Gastroenterol Nutr ; 56(6): 586-96, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23708638

RESUMEN

Each year, rotavirus (RV) infection is the leading cause of acute gastroenteritis requiring hospitalisation and of nosocomially transmitted diseases in children younger than 5 years across Central European Vaccination Awareness Group (CEVAG) countries; however, inadequate surveillance systems and lack of routine RV testing still exist in most CEVAG countries, making it difficult to accurately assess the present burden of acute RV gastroenteritis in the younger population. Furthermore, routine immunisation of infants with RV vaccines has not been implemented, and no official and uniform recommendations exist in most of the countries in these territories. The present study provides CEVAG country-specific estimates of the disease burden of RV gastroenteritis among the youngest population and presents evidence-based advice on the use of RV vaccines in the region, while providing a framework for vaccination at the national level.


Asunto(s)
Política de Salud , Vacunación Masiva , Infecciones por Rotavirus/prevención & control , Vacunas contra Rotavirus/uso terapéutico , Preescolar , Costo de Enfermedad , Análisis Costo-Beneficio , Europa Oriental/epidemiología , Medicina Basada en la Evidencia , Gastroenteritis/economía , Gastroenteritis/epidemiología , Gastroenteritis/prevención & control , Gastroenteritis/terapia , Costos de la Atención en Salud , Humanos , Incidencia , Lactante , Vacunación Masiva/efectos adversos , Vacunación Masiva/economía , Guías de Práctica Clínica como Asunto , Prevalencia , Rotavirus/inmunología , Infecciones por Rotavirus/economía , Infecciones por Rotavirus/epidemiología , Infecciones por Rotavirus/terapia , Vacunas contra Rotavirus/efectos adversos , Vacunas contra Rotavirus/economía , Turquía/epidemiología , Agencias Voluntarias de Salud , Organización Mundial de la Salud
20.
Acta Paediatr ; 102(3): e102-6, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23211000

RESUMEN

AIM: To evaluate whether coeliac disease (CD) can be diagnosed by measuring autoantibodies without small-intestinal mucosal biopsies in children with type 1 diabetes. METHODS: Case finding of CD was undertaken in 181 consecutive IgA-competent children with type 1 diabetes using transglutaminase 2 (TG2) and endomysial IgA antibody (EMA) tests in serum and the rapid point of care test in fingertip whole-blood sample. Endoscopy with intestinal biopsies was recommended for patients with high TG2-IgA titres (>96 U) and in children with lower positive tests if either the EMA test or the rapid point of care test was additionally positive. The duodenal mucosal biopsies were graded according to the Marsh classification. RESULTS: The TG2-IgA test had a 15.5% and the EMA test a 6.0% seropositivity. All seven biopsied high-titre TG2-IgA-positive children were symptom free and found to have CD (Marsh 3 type lesion). These patients were also positive for EMA and in the rapid point of care test. Lower titre TG2-IgA-positive children had histological Marsh 1 to 3a lesions. CONCLUSIONS: None of the type 1 diabetes children with high TG2-IgA titres would have needed endoscopy with duodenal biopsies to reach a CD diagnosis. Lower TG2-IgA-positive patients need to be biopsied.


Asunto(s)
Autoanticuerpos/sangre , Enfermedad Celíaca/diagnóstico , Diabetes Mellitus Tipo 1/complicaciones , Duodeno/patología , Proteínas de Unión al GTP/inmunología , Inmunoglobulina A/inmunología , Transglutaminasas/inmunología , Adolescente , Biopsia , Enfermedad Celíaca/sangre , Enfermedad Celíaca/etiología , Niño , Preescolar , Diabetes Mellitus Tipo 1/sangre , Diabetes Mellitus Tipo 1/inmunología , Endoscopía , Femenino , Humanos , Lactante , Mucosa Intestinal/patología , Masculino , Selección de Paciente , Estudios Prospectivos , Proteína Glutamina Gamma Glutamiltransferasa 2
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