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Lithium (Li) exploitation promotes socioeconomic advances but may result in harmful environmental impacts. Thus, species selection for recovering environments degraded by Li mining is essential. We investigated the tolerance and early growth of four tree species to Li ore tailings (LOT), Enterolobium contortisiliquum and Handroanthus impetiginosus with wide geographic distribution and Hymenaea courbaril and H. stigonocarpa with restricted geographic distribution. The plants grew in LOT and soil for 255 days to evaluate photosynthesis, growth, and mineral nutrition. LOT negatively affected species growth, reducing the length of stems, roots, and biomass through structural and nutritional impoverishment. LOT favored the accumulation of Mg and decreased the absorption of K. The species presented a reduction in potential quantum efficiency and the chlorophyll index (b and total). E. contortisiliquum was the least tolerant species to LOT, and H. courbaril and H. stigonocarpa maintained their mass production in LOT, indicating greater tolerance to tailings. Furthermore, H. courbaril presented a translocation factor > 1 for Li and Mn, indicating the potential for phytoextraction of these metals. Our results offer first-time insights into the impacts of LOT on the early development of tree species with different geographic distribution ranges. This study may help in the tree species selection with a phytoremediation role, aiming at the recovery of areas affected by Li's mining activity.
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Lítio , Mineração , Fotossíntese , Árvores , Fotossíntese/efeitos dos fármacos , Poluentes do SoloRESUMO
Background: The aim of this systematic review is to determine the effectiveness of self-etching primers in comparison to the conventional protocol with hydrofluoric acid and silane treatment for bonding lithium disilicate ceramics. Material and Methods: The formulated PICO question for this research was: "Does self-etching silane primer surface treatment in lithium disilicate ceramics present a similar bond strength value compared to conventional hydrofluoric acid and silane treatment?". Combinations of words and appropriate truncations were adapted for each database. For the selection, duplicate articles were systematically eliminated using Mendeley software. The Cohen's Kappa statistic was then computed, RoBDEMAT questions were addressed, and the meta-analyses were conducted using RevMan 5.4, at a significance level of 5%. Results: Two independent reviewers conducted a blind and independent analysis of 190219 articles from PubMed, Scopus, Web of Science, and OpenGrey. Subsequently, they extracted data from 21 studies for the systematic review and in 16 the meta-analysis. In all in vitro studies, the most frequently cited concentration of hydrofluoric acid was 5%. In the meta-analysis, no statistical differences were observed between the two treatments concerning bond strength. Conclusions: Self-etching silane primers demonstrate promising results in lithium disilicate bonding, suggesting their potential as an alternative surface treatment to hydrofluoric acids + silane. Key words:Lithium disilicate, Hydrofluoric acid, Dental Porcelain, Ceramics, Silanes.
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BACKGROUND: Pregnancy-related infections are important contributors to maternal sepsis and mortality. We aimed to describe clinical, microbiological characteristics and use of antibiotics by source of infection and country income, among hospitalized women with suspected or confirmed pregnancy-related infections. METHODS: We used data from WHO Global Maternal Sepsis Study (GLOSS) on maternal infections in hospitalized women, in 52 low-middle- and high-income countries conducted between November 28th and December 4th, 2017, to describe the frequencies and medians of maternal demographic, obstetric, and clinical characteristics and outcomes, methods of infection diagnosis and causative pathogens, of single source pregnancy-related infection, other than breast, and initial use of therapeutic antibiotics. We included 1456 women. RESULTS: We found infections of the genital (n = 745/1456, 51.2%) and the urinary tracts (UTI) (n = 531/1456, 36.5%) to be the most frequent. UTI (n = 339/531, 63.8%) and post-caesarean skin and soft tissue infections (SSTI) (n = 99/180, 55.0%) were the sources with more culture samples taken and microbiological confirmations. Escherichia coli was the major uropathogen (n = 103/118, 87.3%) and Staphylococcus aureus (n = 21/44, 47.7%) was the commonest pathogen in SSTI. For 13.1% (n = 191) of women, antibiotics were not prescribed on the same day of infection suspicion. Cephalosporins (n = 283/531, 53.3%) were the commonest antibiotic class prescribed for UTI, while metronidazole (n = 303/925, 32.8%) was the most prescribed for all other sources. Ceftriaxone with metronidazole was the commonest combination for the genital tract (n = 98/745, 13.2%) and SSTI (n = 22/180, 12.2%). Metronidazole (n = 137/235, 58.3%) was the most prescribed antibiotic in low-income countries while cephalosporins and co-amoxiclav (n = 129/186, 69.4%) were more commonly prescribed in high-income countries. CONCLUSIONS: Differences in antibiotics used across countries could be due to availability, local guidelines, prescribing culture, cost, and access to microbiology laboratory, despite having found similar sources and pathogens as previous studies. Better dissemination of recommendations in line with antimicrobial stewardship programmes might improve antibiotic prescription.
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Complicações Infecciosas na Gravidez , Infecções Urinárias , Gravidez , Feminino , Humanos , Antibacterianos/uso terapêutico , Metronidazol/uso terapêutico , Complicações Infecciosas na Gravidez/tratamento farmacológico , Cefalosporinas/uso terapêutico , Organização Mundial da Saúde , Infecções Urinárias/tratamento farmacológicoRESUMO
Background: The near miss concept, denoting near collisions between aircraft, originated in aeronautics, but has recently been transferred to the neonatal context as a way of evaluating the quality of health services for newborns, especially in settings with reduced child mortality. However, there is yet no consensus regarding the underlying criteria. The most common indicators used to assess health care quality include mortality (maternal and neonatal) and life-threatening conditions. Using the World Health Organization (WHO) Better Outcomes in Labour Difficulty (BOLD) prospective cohort study data set, we conducted a secondary analysis to validate the near miss concept and explore the association between maternal and neonatal outcomes. Methods: We studied 10 203 singleton mothers treated between December 2014 and November 2015 in nine Nigerian and four Ugandan hospitals. We validated the near miss concept by testing the diagnostic accuracy (sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and odds ratio (OR)) using death as the reference variable and calculating the maternal and neonatal case fatality rates. We performed ordinal and binomial logistic regression, with the independent variables being those that had P < 0.1 in the univariate analyses. We considered the significance level of 5%. Results: We validated the neonatal near miss concept using the BOLD study data. We observed maternal and neonatal case fatality rates of 70.2% and 6.5%, with an increasing severity relationship between maternal and neonatal outcomes (P < 0.05). Ordinal logistic regression showed that gestational age <37 or >41 weeks and <8 antenatal consultations were related to a higher risk of neonatal severe outcomes, while maternal age between 30 and 34 years functioned as a protective factor against severe neonatal outcomes (SNO). Binomial logistic regression showed gestational age <37(OR = 1.46; 95% confidence interval (CI) = 1.07-1.94) or >41 weeks (OR = 2.26; 95% CI = 1.55-3.20), low educational level (OR = 1.76; 95% CI = 1.12-2.69), overweight/obesity (OR = 1.23; 95% CI = 1.02-1.47), one previous cesarean section (OR = 1.90; 95% CI = 1.36-2.61), one previous abortion (OR = 1.25; 95% CI = 1.00-1.56), and previous chronic condition (OR = 1.83; 95% CI = 1.37-2.41) were risk factors for SNO. Conclusions: The neonatal near miss concept could be used as a parameter for analysis in different health systems, to ensure that measuring of neonatal severity is comparable across health care units. In this analysis, we observed a progressive association between maternal severity and the severity of the newborns' outcomes.
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Near Miss , Complicações na Gravidez , Adulto , Feminino , Humanos , Recém-Nascido , Gravidez , Cesárea/efeitos adversos , Idade Materna , Estudos ProspectivosRESUMO
BACKGROUND: Human T-lymphotropic virus 1 (HTLV-1) is associated with the development of several pathologies and chronic infection in humans. The inefficiency of the available treatments and the challenge in developing a protective vaccine highlight the need to produce effective immunotherapeutic tools. The HTLV-1 basic leucine zipper (bZIP) factor (HBZ) plays an important role in the HTLV-1 persistence, conferring a survival advantage to infected cells by reducing the HTLV-1 proteins expression, allowing infected cells to evade immune surveillance, and enhancing cell proliferation leading to increased proviral load. METHODS: We have generated a recombinant Modified Virus Vaccinia Ankara (MVA-HBZ) and a plasmid DNA (pcDNA3.1(+)-HBZ) expressing a multiepitope protein based on peptides of HBZ to study the immunogenic potential of this viral-derived protein in BALB/c mice model. Mice were immunized in a prime-boost heterologous protocol and their splenocytes (T CD4+ and T CD8+) were immunophenotyped by flow cytometry and the humoral response was evaluated by ELISA using HBZ protein produced in prokaryotic vector as antigen. RESULTS: T CD4+ and T CD8+ lymphocytes cells stimulated by HBZ-peptides (HBZ42-50 and HBZ157-176) showed polyfunctional double positive responses for TNF-α/IFN-γ, and TNF-α/IL-2. Moreover, T CD8+ cells presented a tendency in the activation of effector memory cells producing granzyme B (CD44+High/CD62L-Low), and the activation of Cytotoxic T Lymphocytes (CTLs) and cytotoxic responses in immunized mice were inferred through the production of granzyme B by effector memory T cells and the expression of CD107a by CD8+ T cells. The overall data is consistent with a directive and effector recall response, which may be able to operate actively in the elimination of HTLV-1-infected cells and, consequently, in the reduction of the proviral load. Sera from immunized mice, differently from those of control animals, showed IgG-anti-HBZ production by ELISA. CONCLUSIONS: Our results highlight the potential of the HBZ multiepitope protein expressed from plasmid DNA and a poxviral vector as candidates for therapeutic vaccine.
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Vírus Linfotrópico T Tipo 1 Humano , Vacinas de DNA , Camundongos , Humanos , Animais , Linfócitos T CD8-Positivos , Granzimas/genética , Fator de Necrose Tumoral alfa , Vacinas de DNA/genética , Proteínas Virais/metabolismo , Vaccinia virus/genética , DNA , Fatores de Transcrição de Zíper de Leucina Básica , Proteínas dos Retroviridae/genéticaRESUMO
BACKGROUND: The concept of health has undergone profound changes. Lifestyle Medicine consists of therapeutic approaches that focus on the prevention and treatment of diseases. It follows that the quality of life of university students directly affects their health and educational progress. EXPERIMENTAL METHODOLOGY: Socioeconomic, lifestyle (LS), and Salutogenesis Theory/sense of coherence (SOC) questionnaires were administered to college students from three different areas. The results were analyzed for normality and homogeneity, followed by ANOVA variance analysis and Dunn and Tukey post hoc test for multiple comparisons. Spearman's correlation coefficient evaluated the correlation between lifestyle and sense of coherence; p values < 0.05 were considered statistically significant. RESULTS: The correlation between LS and SOC was higher among males and higher among Medical and Human sciences students compared to Exact sciences. Medical students' scores were higher than Applied sciences and Human sciences students on the LS questionnaire. Exact science students' scores on the SOC questionnaire were higher than Human sciences students. In the LS areas related to alcohol intake, sleeping quality, and behavior, there were no differences between the areas. However, women scored better in the nutrition domain and alcohol intake. The SOC was also higher in men compared to women. CONCLUSION: The results obtained demonstrate in an unprecedented way in the literature that the correlation between the LS and SOC of college students varies according to gender and areas of knowledge, reflecting the importance of actions on improving students' quality of life and enabling better academic performance.
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Senso de Coerência , Masculino , Humanos , Feminino , Qualidade de Vida , Universidades , Estilo de Vida , Estudantes , Inquéritos e QuestionáriosRESUMO
Introduction: New techniques, surgical protocols, dental implant designs, and prosthetic rehabilitation have been used in dentistry, most of which have yielded good results in the literature. This retrospective survey assessed the clinical results of patients rehabilitated with dental implants between January 2011 and December 2021. Load protocols (immediate and conventional), types of connections of the installed implants, external hexagon (EH), and cone morse (MC) were evaluated. Material and methods: Two evaluators were selected and calibrated to perform the analyses. The inclusion criteria were records with complete and legible information of patients rehabilitated with dental implants who were followed for at least 1 year after rehabilita-tion. The medical records were divided into two groups, G1 (implants with conventional load) and G2 (implants with immediate load), and further subdivided according to implant type. Information about the rehabilitation failures was noted and descriptive statistics of the results were obtained. Results: Among the 432 evaluated medical records of patients rehabilitated with implants, the study included 319 records: 223 from women and 96 from men, aged 20-79 years. In total, data were available on 1,227 implants with dimensions of 10-13 mm and diameters of 3.75-4 mm. The G1 (n=1.188) survival rates were 94.95% for EH implants and 99.5% for MC implants. In G2 (n=39), the survival rates were 93.75% for EH implants and 91.3% for MC implants. The implant survival rates were relatively high among all groups evaluated; however, the discrepancy between the number of implants in the groups may compromise the comparison between them. Understanding and respecting the biomechanical and technical principles of each protocol was the main factor influencing the success of rehabilitation. Conclusion: The results of this study showed that, according to medical records, rehabilitation with dental implants showed excellent results regardless of the connection type (EH or MC) or loading protocol (conventional or immediate). The two loading protocols and two connection types had excellent results and scientific support. Therefore, the choice should be based on the clinical needs of each patient.
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Prótese Ancorada no Osso , Implantes Dentários , Masculino , Humanos , Feminino , Estudos Retrospectivos , Implantação Dentária Endóssea , SeguimentosRESUMO
Spatial patterns of stable isotopes in animal tissues or "isoscapes" can be used to investigate animal origins in a range of ecological and forensic investigations. Here, we developed a feather hydrogen isotope (δ2Hf) isoscape for Brazil based on 192 samples of feathers from the family Thraupidae from scientific collections. Raw values of δ2Hf ranged from -107.3 to +5.0, with higher values at the Caatinga biome (northeast Brazil) and lower values at the Amazon and Pantanal. A Random Forest (RF) method was used to model the spatial surface, using a range of environmental data as auxiliary variables. The RF model indicated a negative relationship between δ2Hf and Mean Annual Precipitation, Precipitation in the Warmest Quarter, and Annual Temperature Range and positive relationships for amount-weighted February-April precipitation δ2H (δ2Hp(Feb-April)) and Mean Annual Solar Radiation. Modelled δ2Hf values ranged from -85.7 to -13.6. Ours is the first δ2Hf isoscape for Brazil that can greatly assist our understanding of both ecological and biogeochemical processes controlling spatial variation in δ2H for this region. This isoscape can be used with caution, due to its poor predictive power (as found in other tropical regions) and can benefit from new sample input, new GNIP data, ecological and physiological studies, and keratin standard material better encompassing the range in feather samples from Brazil. So, we encourage new attempts to build more precise feather H isoscapes, as well as isoscapes based on other elements.
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Plumas , Hidrogênio , Animais , Brasil , Ecossistema , Plumas/química , Hidrogênio/análise , Isótopos/análiseRESUMO
Introduction: In the rehabilitation of total edentulous patients, lack of bone availability in posterior maxillary regions is common due to pneumatization of the maxillary sinus and posterior mandible due to the presence of the lower alveolar nerve. And to rehabilitate this type of patient, one of them is the use of short implants. Methods: The work aims to evaluate the success rate of treatment of short implants through a literature review. The search was carried out in august 2020 in the Pubmed (MedLine), Scopus and Embase databases, using the keywords: extra short implants, short implants, survival rate, single implant, atrophic mandible. The keywords followed the AND or OR criteria previously elaborated by the PICO question. The inclu-sion criteria were: implants with a length of 4 to 8 mm, which were single and in the posterior region of atrophic mandible and which had 5 years of follow-up. Articles were excluded from the review where the implants were splinted, had a follow-up of less than 5 years and considered short implants larger than 8 mm. Results: After the search, 4 articles were separated, which totaled an n = 172 short implants obtaining a success rate of 93.47% in 5 years. After the search, 4 articles were separated, which totaled an n = 172 short implants obtaining a success rate of 93.47% in 5 years. Conclusion: We can conclude that the use of short implants, even in single prostheses, has a high success rate, which can provide the edentulous patient with little bone bioavailability for rehabilitation.
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Aumento do Rebordo Alveolar , Implantes Dentários , Atrofia/patologia , Implantação Dentária Endóssea , Planejamento de Prótese Dentária , Seguimentos , Humanos , Mandíbula/cirurgia , Maxila/cirurgia , Próteses e Implantes , Resultado do TratamentoRESUMO
The increasing demand for the elemental determination of petrochemical samples by inductively coupled plasma techniques requires the development of suitable sample preparation methods that permit high sample throughput and are in accordance with green chemistry recommendations. For this aim, the development of microwave-induced combustion (MIC) method has been attempted to completely digest petroleum coke samples and address quantitative determination of elements, such as Ag, Al, Ba, Ca, Cd, Co, Cu, Fe, Mg, Mn, Mo, Na, Ni, Pb, Sr, V and Zn, by inductively coupled plasma optical emission spectrometry (ICP OES). A sequential procedure to evaluate the sample mass and the solution to retain the analytes quantitatively was first conducted. Satisfactory results were obtained (residual carbon content in final solutions was lower than 0.5%) by digesting 400 mg of samples using 20 bar of oxygen and analytes were quantitatively retained in a dilute acid solution such as 4.2 mol L-1 HNO3. An agreement better than 87% was achieved using certified reference materials and the performance of the proposed method was also compared to that of the standard procedure recommended by the American Society of Testing and Materials ASTM D 5600. Despite both methods producing similar results, the proposed method by MIC was much simpler, offered a higher sample throughput and the digests were compatible with ICP OES measurements avoiding interferences in the determination step compared the ASTM D 5600 method. These results clearly demonstrated that the proposed MIC method in combination with ICP OES could be a promising alternative to obtain quantitative information about the elemental composition of petroleum coke.
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Coque , Petróleo , Digestão , Espectrometria de Massas/métodos , Micro-OndasRESUMO
One strategy to improve the photovoltaic properties of nonfullerene acceptors (NFAs), employed in state-of-art organic solar cells, is the rational fluorination or chlorination of these molecules. Although this modification improves important acceptor properties, little is known about the effects on the triplet states. Here, we combine the polarizable continuum model with an optimally tuned range-separated hybrid functional to investigate this issue. We find that fluorination or chlorination of NFAs decreases the degree of the highest occupied molecular orbital-lowest unoccupied molecular orbital (HOMO-LUMO) overlap along these molecules. Consequently, the energy gap between T1 and S1 states, ΔEST = ES1 - ET1, also decreases. This effect reduces the binding energy of triplet excitons, which favors their dissociation into free charges. Furthermore, the reduction of ΔEST can contribute to mitigating the losses produced by the nonradiative deactivation of the T1 excitons. Interestingly, although Cl has a lower electronegativity than F, chlorination is more effective to reduce ΔEST. Since the chlorination of NFAs is easier than fluorination, Cl substitution can be a useful approach to enhance solar energy harvesting using triplet excitons.
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This study investigated the factors associated with serious maternal morbidity (SMM) in women seen at public maternity hospitals in Ribeirão Preto, São Paulo State, Brazil. This was a cross-section analytical quantitative study. Participation included 1,098 postpartum women who had given birth at one of the four maternity hospitals in the municipality. Data were collected from August 3, 2015, to February 2, 2016, using face-to-face interviews and data obtained from patient records and prenatal cards. The dependent variable for data analysis was the serious maternal morbidity, that is, when the woman was classified as maternal near miss or potentially life-threatening condition based on WHO eligibility criteria. The study calculated the maternal near miss ratio, odds ratio (OR), 95% confidence interval (95%CI), and multiple logistic regression. The maternal near miss ratio was 3.6 cases per 1,000 live births. Complications occurred mainly during pregnancy (53.8%), and hypertensive disorders were the most frequent (49.4%). Multiple regression analysis showed an association between serious maternal morbidity and high-risk pregnancy (OR = 4.5, 95%CI: 2.7-7.7) and induced labor (OR = 2.1, 95%CI: 1.2-3.9). The occurrence of serious maternal morbidity mainly during pregnancy, featuring hypertensive syndromes, points to the need for better screening and management of high blood pressure in the prenatal period. The association between serious maternal morbidity and high-risk pregnancy also calls attention to prenatal care, for the demand for greater care for women classified as having gestational risk. Quality of care is a key point for dealing with maternal morbidity and mortality in Brazil.
Este estudo investigou os fatores associados à morbidade materna grave entre mulheres atendidas em maternidades públicas do Município de Ribeirão Preto, São Paulo, Brasil. Trata-se de um estudo quantitativo, analítico, transversal. Participaram 1.098 puérperas com parto em uma das quatro maternidades públicas do município. A coleta de dados ocorreu entre 3 de agosto de 2015 e 2 de fevereiro de 2016, a partir de entrevistas face a face, obtenção de informações dos prontuários e dos cartões da gestante. Para a análise de dados, considerou-se como variável dependente a ocorrência de morbidade materna grave, ou seja, quando a mulher era classificada como near miss materno ou condição potencialmente ameaçadora à vida a partir dos critérios de elegibilidade da Organização Mundial de Saúde. Calculou-se a razão do near miss materno, odds ratio (OR), intervalo de 95% de confiança (IC95%) e regressão logística múltipla. A razão do near miss materno foi de 3,6 casos por mil nascidos vivos. As complicações ocorreram principalmente na gravidez (53,8%) e os distúrbios hipertensivos foram os mais frequentes (49,4%). A análise de regressão múltipla mostrou associação entre morbidade materna grave e gestação de risco (OR = 4,5; IC95%: 2,7-7,7) e com trabalho de parto induzido (OR = 2,1; IC95%: 1,2-3,9). A ocorrência de morbidade materna grave, principalmente na gestação, com destaque para as síndromes hipertensivas, aponta para a necessidade de melhor rastreamento e manejo da elevação dos níveis pressóricos no pré-natal. A associação entre morbidade materna grave e gestação de risco também remonta ao pré-natal, para a demanda de uma maior atenção às mulheres classificadas como risco gestacional. A qualidade da assistência é ponto chave para o enfretamento da morbimortalidade materna no país.
Este estudio investigó los factores asociados a la morbilidad materna grave entre mujeres atendidas en maternidades públicas del municipio de Ribeirão Preto, São Paulo, Brasil. Se trata de un estudio cuantitativo, analítico, transversal. Participaron 1.098 puérperas con parto en una de las cuatro maternidades públicas del municipio. La recogida de datos se produjo entre el 3 de agosto de 2015 al 2 de febrero de 2016, mediante entrevistas cara a cara, obtención de información de los historiales y cartillas de las gestantes. Para el análisis de datos, se consideró como variable dependiente la ocurrencia de morbilidad materna grave, o sea, cuando la mujer era clasificada como near miss materno o condición potencialmente amenazadora para la vida, a partir de los criterios de elegibilidad de la Organización Mundial de Salud. Se calculó la razón del near miss materno, odds ratio (OR), intervalo de 95% de confianza (IC95%) y regresión logística múltiple. La razón de near miss materno fue de 3,6 casos por 1.000 nacidos vivos. Las complicaciones se produjeron principalmente en el embarazo (53,8%) y las alteraciones hipertensivas fueron las más frecuentes (49,4%). El análisis de regresión múltiple mostró asociación entre morbilidad materna grave y gestación de riesgo (OR = 4,5; IC95%: 2,7-7,7) y con trabajo de parto inducido (OR = 2,1; IC95%: 1,2-3,9). La ocurrencia de morbilidad materna grave, principalmente en la gestación, resaltando los síndromes hipertensivos, apunta la necesidad de un mejor rastreo y gestión de la elevación de los niveles presión arterial en el período prenatal. La asociación entre morbilidad materna grave y gestación de riesgo también se remonta al período prenatal, con el fin de que se preste una mayor atención a las mujeres clasificadas como de riesgo gestacional. La calidad de la asistencia es un punto clave para combatir la morbimortalidad materna en el país.
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Complicações na Gravidez , Gravidez de Alto Risco , Brasil/epidemiologia , Estudos de Coortes , Estudos Transversais , Feminino , Maternidades , Humanos , Mortalidade Materna , Gravidez , Complicações na Gravidez/epidemiologiaRESUMO
In this study, we present a correlation between δ18OC values of carbonate in tooth enamel samples from the modern Brazilian population and the available δ18ODW data for the meteoric water from the Global Network of Isotopes in Precipitation (GNIP). Tooth enamel from 119 Brazilian individuals from five different regions of the country were analyzed. The δ18OC isoscape obtained is in good agreement with the isoscape based on regional meteoric and drinking water. The regression matrix obtained for the δ18O values of the carbonate tooth enamel and meteoric water was used to build an isoscape using the regression-kriging approach. Our data show that Brazil can be divided in two main regions with respect to the δ18O values of the carbonate tooth enamel: (1) the most easterly part of the northeast region, which is characterized by a warm and dry climate and (2) the remainder of the country, stretching from the Amazon rain forest to the more southernly regions. The data herein reported can be used for forensic purposes related to human identification.
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Carbonatos , Esmalte Dentário , Água Potável , Brasil , Esmalte Dentário/química , Odontologia Legal , Humanos , Isótopos de Oxigênio/análiseRESUMO
Background: Congenital diaphragmatic hernia (CDH) is a severe embryological defect that causes pulmonary hypoplasia and hypertension. The prevalence and mortality rate of CDH varies around the world and little information is available about CDH in Latin America. Our aim was to estimate the general prevalence, mortality rate, prevalence of associated anomalies and features related to the outcomes of CDH in newborns from São Paulo state, Brazil. Methods: Population-based cross-sectional study based on data gathered from the Live Births Information System (SINASC) and the Mortality Information System (SIM) of children born in São Paulo state between January 1st, 2006, and December 31st, 2017. Findings: From 7,311,074 total survival discharges between 2006 and 2017, 1,155 were CDH-related, resulting in a prevalence rate of 1:6329 (95%CI = 1/6715 - 1/5984) and a mortality rate of 63·72% (95%CI = 60.95 - 66.50), 510 presented complex associated anomalies (44·15%). Maternal data showed higher prevalence among older mothers (older than 35 years old: 2·13 per 10,000) and, also, women with more years of schooling (higher than 12 years: 1·99 per 10,000). Presence of associated anomalies (95%CI = 5.69-11.10), 1-min Apgar (95%CI = 1.44-2.95), maternal schooling (95%CI = 1.06-2.43) and birth weight (95%CI = 1.04-2.26) were the most significant features associated with mortality. Interpretation: There was 1 CDH case for every 6329 newborns in São Paulo and the mortality rate among those cases was 63·72% - a high rate compared to other countries. Funding: This study didn't receive any specific grant from any funding agency in the public, commercial or not-for-profit sectors.
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'Brejos de altitude' is an ecosystem that has been subjected to severe exploitation, leading to an intense reduction in Brazil. Understanding the patterns of bryophyte diversity and composition, particularly of specialized species such as the epiphylls, to anthropic and abiotic variables is crucial for implementing protection measures. We investigated the relationship between composition and diversity of epiphyllous bryophytes and anthropic (edge effects) and abiotic (altitude) variables at local (within each 'Brejo') and regional (set of three 'Brejos') scale. Abiotic and anthropic variables were correlated with alpha and beta diversity (decomposed into species replacement and richness differences) using GLM. Their effects on species composition were evaluated using PERMANOVA. The localities at higher elevations harboured a richer bryoflora and overall beta diversity patterns were associated with altitude and locality, which acted over different scales. Regionally, the contribution of richness differences was limited with increasing altitude. Yet, dissimilarities among localities were associated with richness differences and replacement, denoting the importance of local factors. The composition was explained by local factors interacting with the regional altitudinal gradient. Anthropic activity was significant only when interacting with local factors and altitudinal gradient. Environmental filtering associated with altitude played a more important role in shaping the diversity and composition of epiphyllous bryophytes, at both regional and local scales. Each 'Brejo' acts as an ecological refuge, harbouring part of the whole environmental gradient, and presents a unique floristic composition. Moreover, partitioning beta diversity highlighted the interplay of local and regional forces shaping diversity patterns.
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Briófitas , Ecossistema , Altitude , Biodiversidade , BrasilRESUMO
OBJECTIVE: To evaluate the predictive capacity of vital signs for the diagnosis of postpartum hemorrhage (PPH). METHODS: A prospective cohort study performed at the University of Campinas, Brazil, between February 2015 and March 2016 with women who delivered vaginally. Vital signs and postpartum bleeding were collected over 24 h. Exploratory data analysis was performed plus receiver operating characteristic curve analysis where the areas under the curve was used to determine the best cutoff points for sensitivity, specificity, likelihood ratio, and diagnostic odds ratio. RESULTS: For the 270 women recruited, mean blood loss after 120 min was 427.49 ± 335.57 ml, while 84 (31.1%) and 22 (8.1%) women had blood loss ≥500 and ≥1000 ml, respectively. Heart rate cutoff point of 105 bpm measured between 21-40 min after birth identified blood loss ≥1000 ml with 90% specificity. A shock index (SI) of 0.965 at 41-60 min after birth identified blood loss ≥500 and ≥1000 ml within 2 h with approximately 95% specificity. CONCLUSION: Shock index and heart rate measured after birth showed high specificity with low sensitivity to identify PPH. In clinical practice, "The rule of 1s" should receive special attention: SI ≥1, or heart rate >100 bpm, or estimated blood loss ≥1 L.
Assuntos
Hemorragia Pós-Parto , Choque , Feminino , Frequência Cardíaca , Humanos , Parto , Hemorragia Pós-Parto/diagnóstico , Hemorragia Pós-Parto/epidemiologia , Gravidez , Estudos ProspectivosRESUMO
OBJECTIVE: To compare the 14-item Resilience Scale (RS-14) and the original 25-item scale (RS-25) in the obstetric population, including vulnerable and non-vulnerable women. METHODS: A Brazilian prospective cohort study was conducted of nulliparous singleton pregnant women from March 2018 to March 2020. Women who completed the RS-25 at 27-29 weeks of pregnancy were included in the analysis. RS-25 and RS-14 scores were converted to comparable scales of 0-100. Medians, standard deviations, and centiles between versions were compared for the general, vulnerable, and non-vulnerable populations. Correlation, concordance, and internal consistency and reliability analyses were performed. P < 0.05 was considered statistically significant. RESULTS: In total, 381 women who completed the RS-25 were included. Medians of RS-14 and RS-25 scores were significantly different (73.4 and 70.8, respectively; P < 0.001), regardless of the vulnerability status. The RS-14 showed a high correlation (Pearson´s correlation coefficient of -0.379 (P-value < 0.001)), but no agreement (Pitman's test of difference in variance: r = 0.422; P < 0.001) with the RS-25 version. RS-14 showed high internal consistency and reliability with only one component (Variance of 59.82%, Cronbach's Alpha 0.947). CONCLUSION: The RS-14 may overestimate the RS-25 score and different domains may not be assessed by the short version. The psychometric properties of the RS-14 and the clinical relevance of the variation between versions require further evaluation.
Assuntos
Reprodutibilidade dos Testes , Brasil , Feminino , Humanos , Gravidez , Estudos Prospectivos , Psicometria , Inquéritos e QuestionáriosRESUMO
Este estudo investigou os fatores associados à morbidade materna grave entre mulheres atendidas em maternidades públicas do Município de Ribeirão Preto, São Paulo, Brasil. Trata-se de um estudo quantitativo, analítico, transversal. Participaram 1.098 puérperas com parto em uma das quatro maternidades públicas do município. A coleta de dados ocorreu entre 3 de agosto de 2015 e 2 de fevereiro de 2016, a partir de entrevistas face a face, obtenção de informações dos prontuários e dos cartões da gestante. Para a análise de dados, considerou-se como variável dependente a ocorrência de morbidade materna grave, ou seja, quando a mulher era classificada como near miss materno ou condição potencialmente ameaçadora à vida a partir dos critérios de elegibilidade da Organização Mundial de Saúde. Calculou-se a razão do near miss materno, odds ratio (OR), intervalo de 95% de confiança (IC95%) e regressão logística múltipla. A razão do near miss materno foi de 3,6 casos por mil nascidos vivos. As complicações ocorreram principalmente na gravidez (53,8%) e os distúrbios hipertensivos foram os mais frequentes (49,4%). A análise de regressão múltipla mostrou associação entre morbidade materna grave e gestação de risco (OR = 4,5; IC95%: 2,7-7,7) e com trabalho de parto induzido (OR = 2,1; IC95%: 1,2-3,9). A ocorrência de morbidade materna grave, principalmente na gestação, com destaque para as síndromes hipertensivas, aponta para a necessidade de melhor rastreamento e manejo da elevação dos níveis pressóricos no pré-natal. A associação entre morbidade materna grave e gestação de risco também remonta ao pré-natal, para a demanda de uma maior atenção às mulheres classificadas como risco gestacional. A qualidade da assistência é ponto chave para o enfretamento da morbimortalidade materna no país.
This study investigated the factors associated with serious maternal morbidity (SMM) in women seen at public maternity hospitals in Ribeirão Preto, São Paulo State, Brazil. This was a cross-section analytical quantitative study. Participation included 1,098 postpartum women who had given birth at one of the four maternity hospitals in the municipality. Data were collected from August 3, 2015, to February 2, 2016, using face-to-face interviews and data obtained from patient records and prenatal cards. The dependent variable for data analysis was the serious maternal morbidity, that is, when the woman was classified as maternal near miss or potentially life-threatening condition based on WHO eligibility criteria. The study calculated the maternal near miss ratio, odds ratio (OR), 95% confidence interval (95%CI), and multiple logistic regression. The maternal near miss ratio was 3.6 cases per 1,000 live births. Complications occurred mainly during pregnancy (53.8%), and hypertensive disorders were the most frequent (49.4%). Multiple regression analysis showed an association between serious maternal morbidity and high-risk pregnancy (OR = 4.5, 95%CI: 2.7-7.7) and induced labor (OR = 2.1, 95%CI: 1.2-3.9). The occurrence of serious maternal morbidity mainly during pregnancy, featuring hypertensive syndromes, points to the need for better screening and management of high blood pressure in the prenatal period. The association between serious maternal morbidity and high-risk pregnancy also calls attention to prenatal care, for the demand for greater care for women classified as having gestational risk. Quality of care is a key point for dealing with maternal morbidity and mortality in Brazil.
Este estudio investigó los factores asociados a la morbilidad materna grave entre mujeres atendidas en maternidades públicas del municipio de Ribeirão Preto, São Paulo, Brasil. Se trata de un estudio cuantitativo, analítico, transversal. Participaron 1.098 puérperas con parto en una de las cuatro maternidades públicas del municipio. La recogida de datos se produjo entre el 3 de agosto de 2015 al 2 de febrero de 2016, mediante entrevistas cara a cara, obtención de información de los historiales y cartillas de las gestantes. Para el análisis de datos, se consideró como variable dependiente la ocurrencia de morbilidad materna grave, o sea, cuando la mujer era clasificada como near miss materno o condición potencialmente amenazadora para la vida, a partir de los criterios de elegibilidad de la Organización Mundial de Salud. Se calculó la razón del near miss materno, odds ratio (OR), intervalo de 95% de confianza (IC95%) y regresión logística múltiple. La razón de near miss materno fue de 3,6 casos por 1.000 nacidos vivos. Las complicaciones se produjeron principalmente en el embarazo (53,8%) y las alteraciones hipertensivas fueron las más frecuentes (49,4%). El análisis de regresión múltiple mostró asociación entre morbilidad materna grave y gestación de riesgo (OR = 4,5; IC95%: 2,7-7,7) y con trabajo de parto inducido (OR = 2,1; IC95%: 1,2-3,9). La ocurrencia de morbilidad materna grave, principalmente en la gestación, resaltando los síndromes hipertensivos, apunta la necesidad de un mejor rastreo y gestión de la elevación de los niveles presión arterial en el período prenatal. La asociación entre morbilidad materna grave y gestación de riesgo también se remonta al período prenatal, con el fin de que se preste una mayor atención a las mujeres clasificadas como de riesgo gestacional. La calidad de la asistencia es un punto clave para combatir la morbimortalidad materna en el país.
Assuntos
Humanos , Feminino , Gravidez , Complicações na Gravidez/epidemiologia , Gravidez de Alto Risco , Brasil/epidemiologia , Mortalidade Materna , Estudos Transversais , Estudos de Coortes , MaternidadesRESUMO
OBJECTIVE: To investigate gender inequity in the scientific production of the University of Sao Paulo. METHODS: Members of the University of Sao Paulo faculty are the study population. The Web of Science repository was the source of the publication metrics. We selected the measures: total publications and citations, average of citations per year and item, H-index, and history of citations between 1950 and 2019. We used the name of the faculty member as a proxy to the gender identity. We use descriptive statistics to characterize the metrics. We evaluated the scissors effect by selecting faculty members with a high H-index. The historical series of citations was projected until 2100. We carry out analyses for the general population and working time subgroups: less than 10 years, 10 to 20 years, and 20 years or more. RESULTS: Of the 8,325 faculty members, we included 3,067 (36.8%). Among those included, 1,893 (61.7%) were male and 1,174 (38.28%) female. The male gender presented higher values in the publication metrics (average of articles: M = 67.0 versus F = 49.7; average of citations/year: M = 53.9 versus F = 35.9), and H-index (M = 14.5 versus F = 12.4). Among the 100 individuals with the highest H-index (≥ 37), 83% are male. The male curve grows faster in the historical series of citations, opening a difference between the groups whose separation is confirmed by the projection. DISCUSSION: Scientific production at the Universidade de São Paulo is subject to a gender bias. Two-thirds of the faculty are male, and hiring over the past few decades perpetuates this pattern. The large majority of high impact faculty members are male. CONCLUSION: Our analysis suggests that the Universidade de São Paulo will not overcome gender inequality in scientific production without substantive affirmative action. Development does not happen by chance but through choices that are affirmative, decisive, and long-term oriented.