Biosurfactants produced by yeasts: fermentation, screening, recovery, purification, characterization, and applications

The demand for biosurfactants (BS) produced by yeast for use in industrial processes and products is increasing. Therefore, there has been an increase in the number of publications related to characterization of surfactant compounds produced by yeasts generally recognized as safe (GRAS), which has enabled their application in several industries, including the pharmaceutical and food industries. However, some of these studies use techniques that are not accurate or are no longer essential because of advancements in new technologies. Given the industrial importance of yeasts and their potential to produce BS, this study reviews the production of BS by this microorganism and the most recent industrial applications of BS. It also critically reviews a wide range of techniques used in screening of BS-producing strains, as well as those used in recovery, purification, and characterization of these surfactant compounds produced by yeasts. This review introduces diverse methodologies that are indispensable for the study of BS produced by yeast in an effort to advance BS design, synthesis, and application and introduces new perspectives in the research of these compounds to overcome the obstacles present in this field.This research was supported by Brazilian agencies Conselho Nacional de Desenvolvimento Científico e Tecnológico do Brasil (CNPq) [grant numbers 312336/2014-4, 423095/2016-1], Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) [grant number CAG-APQ-03478-16], and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) [PNPD20131289]

VIOLÊNCIA CONTRA A MULHER: O CUIDADO PRÉ-NATAL E A IMPORTÂNCIA DA ATUAÇÃO HUMANIZADA

Objective: We aimed to analyze and identify the behaviors and strategies used by health professionals in the face of domestic violence during prenatal care. Results: It was observed in the literature that up to 59% of women, in various socioeconomic and cultural situations, will experience some moment of violence at least once in their lives, and it may be during the pregnancy period. It has been shown that the prevalence of physical violence in Brazil was 8% in the city of São Paulo and 11% in the Zona da Mata of the state of Pernambuco. According to the United Nations (UN), in 2016, Brazil was in 5th place in the world ranking of countries with the highest rates of violence against women. Final Considerations: Violence against women, in itself, is a complex and impactful social problem; when this violence happens during pregnancy, it is even more traumatic, with physical and psychological consequences not only for her but also for her children. The study demonstrated the importance of the humanized and holistic performance of health professionals who will accompany this pregnant woman, being fundamental to detect and intervene, aiming at a better quality of life.Objetivo: Se pretende analizar e identificar las conductas y estrategias utilizadas por los profesionales de la salud ante la violencia doméstica durante el prenatal. Resultados: Se observó en la literatura que hasta el 59% de las mujeres, en diversas situaciones socioeconómicas y culturales, experimentarán algún momento de violencia al menos una vez en su vida, y puede ser durante el período de embarazo. Se demostró que la prevalencia de la violencia física en Brasil era del 8% en la ciudad de São Paulo y del 11% en la Zona da Mata del Estado de Pernambuco. Según la Organización de las Naciones Unidas (ONU), en 2016, Brasil ocupó el 5º lugar en el ranking mundial de países con mayor índice de violencia contra las mujeres. Consideraciones finales: La violencia contra la mujer, en sí misma, es un problema social complejo y de gran impacto; cuando esta violencia ocurre durante el embarazo, es aún más traumática, con consecuencias físicas y psicológicas no sólo para ella sino también para sus hijos. El estudio demostró la importancia de la actuación humanizada y holística de los profesionales de la salud que van a acompañar a esta gestante, siendo esencial para detectar e intervenir, buscando una mejor calidad de vida.Objetivo: Objetiva-se analisar e identificar as condutas e estratégias utilizadas pelos profissionais de saúde diante da violência doméstica durante o pré-natal. Resultados: Observou-se na literatura que até 59% das mulheres, em várias situações socioeconômicas e culturais, passarão por algum momento de violência pelo menos uma vez na vida, podendo ser durante o período de gravidez.  Demonstrou-se que a prevalência de violência física no Brasil, foi de 8% na cidade de São Paulo e 11% na Zona da Mata do Estado de Pernambuco. De acordo com a Organização Nações Unidas (ONU), em 2016, o Brasil encontrava-se em 5º lugar ranking mundial dos países com maior índice de violência contra as mulheres.  Considerações Finais: A violência contra a mulher, por si só, é um problema social, complexo e impactante, quando essa violência acontece no decorrer do período gestacional é ainda mais traumático, com consequências físicas e psicológicas não só para ela como também para os filhos. O estudo demonstrou a importância da atuação humanizada e holística dos profissionais da saúde que acompanharão essa gestante, sendo fundamental para detectar e intervir, visando uma melhor qualidade de vida.Objetivo: Objetiva-se analisar e identificar as condutas e estratégias utilizadas pelos profissionais de saúde diante da violência doméstica durante o pré-natal. Resultados: Observou-se na literatura que até 59% das mulheres, em várias situações socioeconômicas e culturais, passarão por algum momento de violência pelo menos uma vez na vida, podendo ser durante o período de gravidez.  Demonstrou-se que a prevalência de violência física no Brasil, foi de 8% na cidade de São Paulo e 11% na Zona da Mata do Estado de Pernambuco. De acordo com a Organização Nações Unidas (ONU), em 2016, o Brasil encontrava-se em 5º lugar ranking mundial dos países com maior índice de violência contra as mulheres.  Considerações Finais: A violência contra a mulher, por si só, é um problema social, complexo e impactante, quando essa violência acontece no decorrer do período gestacional é ainda mais traumático, com consequências físicas e psicológicas não só para ela como também para os filhos. O estudo demonstrou a importância da atuação humanizada e holística dos profissionais da saúde que acompanharão essa gestante, sendo fundamental para detectar e intervir, visando uma melhor qualidade de vida

Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study

Summary Background Congenital anomalies are the fifth leading cause of mortality in children younger than 5 years globally. Many gastrointestinal congenital anomalies are fatal without timely access to neonatal surgical care, but few studies have been done on these conditions in low-income and middle-income countries (LMICs). We compared outcomes of the seven most common gastrointestinal congenital anomalies in low-income, middle-income, and high-income countries globally, and identified factors associated with mortality. Methods We did a multicentre, international prospective cohort study of patients younger than 16 years, presenting to hospital for the first time with oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis, exomphalos, anorectal malformation, and Hirschsprung’s disease. Recruitment was of consecutive patients for a minimum of 1 month between October, 2018, and April, 2019. We collected data on patient demographics, clinical status, interventions, and outcomes using the REDCap platform. Patients were followed up for 30 days after primary intervention, or 30 days after admission if they did not receive an intervention. The primary outcome was all-cause, in-hospital mortality for all conditions combined and each condition individually, stratified by country income status. We did a complete case analysis. Findings We included 3849 patients with 3975 study conditions (560 with oesophageal atresia, 448 with congenital diaphragmatic hernia, 681 with intestinal atresia, 453 with gastroschisis, 325 with exomphalos, 991 with anorectal malformation, and 517 with Hirschsprung’s disease) from 264 hospitals (89 in high-income countries, 166 in middleincome countries, and nine in low-income countries) in 74 countries. Of the 3849 patients, 2231 (58·0%) were male. Median gestational age at birth was 38 weeks (IQR 36–39) and median bodyweight at presentation was 2·8 kg (2·3–3·3). Mortality among all patients was 37 (39·8%) of 93 in low-income countries, 583 (20·4%) of 2860 in middle-income countries, and 50 (5·6%) of 896 in high-income countries (p<0·0001 between all country income groups). Gastroschisis had the greatest difference in mortality between country income strata (nine [90·0%] of ten in lowincome countries, 97 [31·9%] of 304 in middle-income countries, and two [1·4%] of 139 in high-income countries; p≤0·0001 between all country income groups). Factors significantly associated with higher mortality for all patients combined included country income status (low-income vs high-income countries, risk ratio 2·78 [95% CI 1·88–4·11], p<0·0001; middle-income vs high-income countries, 2·11 [1·59–2·79], p<0·0001), sepsis at presentation (1·20 [1·04–1·40], p=0·016), higher American Society of Anesthesiologists (ASA) score at primary intervention (ASA 4–5 vs ASA 1–2, 1·82 [1·40–2·35], p<0·0001; ASA 3 vs ASA 1–2, 1·58, [1·30–1·92], p<0·0001]), surgical safety checklist not used (1·39 [1·02–1·90], p=0·035), and ventilation or parenteral nutrition unavailable when needed (ventilation 1·96, [1·41–2·71], p=0·0001; parenteral nutrition 1·35, [1·05–1·74], p=0·018). Administration of parenteral nutrition (0·61, [0·47–0·79], p=0·0002) and use of a peripherally inserted central catheter (0·65 [0·50–0·86], p=0·0024) or percutaneous central line (0·69 [0·48–1·00], p=0·049) were associated with lower mortality. Interpretation Unacceptable differences in mortality exist for gastrointestinal congenital anomalies between lowincome, middle-income, and high-income countries. Improving access to quality neonatal surgical care in LMICs will be vital to achieve Sustainable Development Goal 3.2 of ending preventable deaths in neonates and children younger than 5 years by 2030

The effect of roast profiles on the dynamics of titratable acidity during coffee roasting.

Coffee professionals have long known that the roast profile, i.e., the temperature versus time inside the roaster, strongly affects the flavor and quality of the coffee. A particularly important attribute of brewed coffee is the perceived sourness, which is known to be strongly correlated to the total titratable acidity (TA). Most prior work has focused on laboratory-scale roasters with little control over the roast profile, so the relationship between roast profile in a commercial-scale roaster and the corresponding development of TA to date remains unclear. Here we investigate roast profiles of the same total duration but very different dynamics inside a 5-kg commercial drum roaster, and we show that the TA invariably peaks during first crack and then decays to its original value by second crack. Although the dynamics of the TA development varied with roast profile, the peak TA surprisingly exhibited almost no statistically significant differences among roast profiles. Our results provide insight on how to manipulate and achieve desired sourness during roasting

Development and validation of the dystonia-pain classification System : a multicenter study

Abstract: Background: Dystonia is associated with disabling nonmotor symptoms like chronic pain (CP), which is prevalent in dystonia and significantly impacts the quality of life (QoL). There is no validated tool for assessing CP in dystonia, which substantially hampers pain management. Objective: The aim was to develop a CP classification and scoring system for dystonia. Methods: A multidisciplinary group was established to develop the Dystonia-Pain Classification System (Dystonia- PCS). The classification of CP as related or unrelated to dystonia was followed by the assessment of pain severity score, encompassing pain intensity, frequency, and impact on daily living. Then, consecutive patients with inherited/idiopathic dystonia of different spatial distribution were recruited in a cross-sectional multicenter validation study. Dystonia-PCS was compared to validated pain, mood, QoL, and dystonia scales (Brief Pain Inventory, Douleur Neuropathique-4 questionnaire, European QoL-5 Dimensions-3 Level Version, and Burke–Fahn–Marsden Dystonia Rating Scale). Results: CP was present in 81 of 123 recruited patients, being directly related to dystonia in 82.7%, aggravated by dystonia in 8.8%, and nonrelated to dystonia in 7.5%. affected by this disorder. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society. Dystonia-PCS had excellent intra-rater (Intraclass Correlation Coefficient - ICC: 0.941) and inter-rater (ICC: 0.867) reliability. In addition, pain severity score correlated with European QoL-5 Dimensions-3 Level Version’s pain subscore (r = 0.635, P < 0.001) and the Brief Pain Inventory’s severity and interference scores (r = 0.553, P < 0.001 and r = 0.609, P < 0.001, respectively). Conclusions: Dystonia-PCS is a reliable tool to categorize and quantify CP impact in dystonia and will help improve clinical trial design and management of CP in patients affected by this disorder

Multidimensional tropical forest recovery

International audienceTropical forests disappear rapidly because of deforestation, yet they have the potential to regrow naturally on abandoned lands. We analyze how 12 forest attributes recover during secondary succession and how their recovery is interrelated using 77 sites across the tropics. Tropical forests are highly resilient to low-intensity land use; after 20 years, forest attributes attain 78% (33 to 100%) of their old-growth values. Recovery to 90% of old-growth values is fastest for soil (12 decades). Network analysis shows three independent clusters of attribute recovery, related to structure, species diversity, and species composition. Secondary forests should be embraced as a low-cost, natural solution for ecosystem restoration, climate change mitigation, and biodiversity conservation

NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data