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On March 11, 2020, the WHO declared the COVID-19 pandemic. This name was given to the disease caused by the SARS-CoV 2 virus at its outbreak in December 2019 in Wuhan, Hubei, China. In Colombia, a significant number of cases have been confirmed. The aim of this study was to evaluate children with respiratory symptoms caused by SARS-CoV2 infection, identifying independent predictors of risk of having a severe illness, thus leading to an early approach and intervention in our patients, especially in children with comorbidities. An analytical cross-sectional study was conducted between April 1, 2020 and March 31, 2021 at a fourth-level referral institution in Bogotá on patients under 18 years of age with respiratory symptoms and a COVID-19 diagnosis confirmed in the laboratory. An explanatory binary logistic regression model was performed with an outcome variable of admission to the intensive care unit. A total of 385 children were included in the study, with ages between 9 months and 17 years of age; 50.1% were male, and the ICR was 9.75 years. 41.6% had some comorbidity, 13.5% were admitted to the pediatric ICU, and 3.6% of the total number of patients died. The predictor variables were: use of antibiotics in the first 24 h, neurological comorbidity, and consolidation shown in the chest X-ray. This explains 38.7% of the variability of the variable. In this cohort of patients with COVID-19-associated respiratory symptoms, we identified predictors of severity, so we consider that these patients require a risk approach that allows timely and adequate care.
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COVID-19 , Humanos , Masculino , Criança , Adolescente , Lactente , Feminino , SARS-CoV-2 , Pandemias , RNA Viral , Teste para COVID-19 , Estudos Transversais , Países em Desenvolvimento , Unidades de Terapia Intensiva PediátricaRESUMO
Over the course of the last 20 years, numerous studies have identified the benefits of an array of marine natural ingredients for cosmetic purposes, as they present unique characteristics not found in terrestrial organisms. Consequently, several marine-based ingredients and bioactive compounds are under development, used or considered for skin care and cosmetics. Despite the multitude of cosmetics based on marine sources, only a small proportion of their full potential has been exploited. Many cosmetic industries have turned their attention to the sea to obtain innovative marine-derived compounds for cosmetics, but further research is needed to determine and elucidate the benefits. This review gathers information on the main biological targets for cosmetic ingredients, different classes of marine natural products of interest for cosmetic applications, and the organisms from which such products can be sourced. Although organisms from different phyla present different and varied bioactivities, the algae phylum seems to be the most promising for cosmetic applications, presenting compounds of many classes. In fact, some of these compounds present higher bioactivities than their commercialized counterparts, demonstrating the potential presented by marine-derived compounds for cosmetic applications (i.e., Mycosporine-like amino acids and terpenoids' antioxidant activity). This review also summarizes the major challenges and opportunities faced by marine-derived cosmetic ingredients to successfully reach the market. As a future perspective, we consider that fruitful cooperation among academics and cosmetic industries could lead to a more sustainable market through responsible sourcing of ingredients, implementing ecological manufacturing processes, and experimenting with inventive recycling and reuse programs.
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Produtos Biológicos , Cosméticos , Produtos Biológicos/farmacologia , Produtos Biológicos/química , Cosméticos/química , Indústrias , Comércio , PlantasRESUMO
The use of neuraxial procedures, such as spinal and epidural anaesthesia, has been linked to some possible complications. In addition, spinal cord injuries due to anaesthetic practice (Anaes-SCI) are rare events but remain a significant concern for many patients undergoing surgery. This systematic review aimed to identify high-risk patients summarise the causes, consequences, and management/recommendations of SCI due to neuraxial techniques in anaesthesia. A comprehensive search of the literature was conducted in accordance with Cochrane recommendations, and inclusion criteria were applied to identify relevant studies. From the 384 studies initially screened, 31 were critically appraised, and the data were extracted and analysed. The results of this review suggest that the main risk factors reported were extremes of age, obesity, and diabetes. Anaes-SCI was reported as a consequence of hematoma, trauma, abscess, ischemia, and infarction, among others. As a result, mainly motor deficits, sensory loss, and pain were reported. Many authors reported delayed treatments to resolve Anaes-SCI. Despite the potential complications, neuraxial techniques are still one of the best options for opioid-sparing pain prevention and management, reducing patients' morbidity, improving outcomes, reducing the length of hospital stay, and pain chronification, with a consequent economic benefit. The main findings of this review highlight the importance of careful patient management and close monitoring during neuraxial anaesthesia procedures to minimise the risk of spinal cord injury and complications.
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Anestesia Epidural , Raquianestesia , Traumatismos da Medula Espinal , Humanos , Raquianestesia/efeitos adversos , Anestesia Epidural/efeitos adversos , Anestesia Epidural/métodos , Traumatismos da Medula Espinal/etiologia , Dor/etiologiaRESUMO
Zika virus (ZIKV) infections are associated with severe neurological complications and are a global public health concern. There are no approved vaccines or antiviral drugs to inhibit ZIKV replication. NS2B-NS3 protease (NS2B-NS3 pro), which is essential for viral replication, is a promising molecular target for anti-ZIKV drugs. We conducted a systematic review to identify compounds with promising effects against ZIKV; we discussed their pharmacodynamic and pharmacophoric characteristics. The online search, performed using the PubMed/MEDLINE and SCOPUS databases, yielded 56 articles; seven relevant studies that reported nine promising compounds with inhibitory activity against ZIKV NS2B-NS3 pro were selected. Of these, five (niclosamide, nitazoxanide, bromocriptine, temoporfin, and novobiocin) are currently available on the market and have been tested for off-label use against ZIKV. The 50% inhibitory concentration values of these compounds for the inhibition of NS2B-NS3 pro ranged at 0.38-21.6 µM; most compounds exhibited noncompetitive inhibition (66%). All compounds that could inhibit the NS2B-NS3 pro complex showed potent in vitro anti-ZIKV activity with a 50% effective concentration ranging 0.024-50 µM. The 50% cytotoxic concentration of the compounds assayed using A549, Vero, and WRL-69 cell lines ranged at 0.6-1388.02 µM and the selectivity index was 3.07-1698. This review summarizes the most promising antiviral agents against ZIKV that have inhibitory activity against viral proteases.
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Antivirais/farmacologia , Inibidores de Proteases/farmacologia , Proteínas não Estruturais Virais/antagonistas & inibidores , Infecção por Zika virus/tratamento farmacológico , Zika virus/efeitos dos fármacos , Animais , Antivirais/química , Humanos , Terapia de Alvo Molecular , Inibidores de Proteases/química , Proteínas não Estruturais Virais/metabolismo , Replicação Viral/efeitos dos fármacos , Zika virus/enzimologia , Infecção por Zika virus/virologiaRESUMO
BACKGROUND: Relatives of people diagnosed with suicidal behavior disorder (SBD) feel guilty, afraid, hopeless, depression and anxiety. It is necessary to help the relatives of people with SBD to reduce their discomfort and burden. Family Connections (FC) is a program that has been shown to be effective in reducing burden, depression, and anxiety, and increasing dominance and validating behaviors in relatives of people with borderline personality disorder. However, there are no RCTs that demonstrate the efficacy of the FC program in patients with SBD. Our research team adapted FC for relatives of people with SBD for delivery in the Spanish population (FC-SBD). The FC-SBD program contains 12 two-hour sessions held once a week. The first aim is to verify the efficacy of the FC-SBD intervention for relatives of people diagnosed with SBD in a randomized control trial with a Spanish sample. The second objective is to analyze the feasibility and acceptance of FC-SBD in relatives. The third aim is to analyze whether the changes produced in the psychological variables in the relatives after the intervention are related to changes in the psychological variables of the patients. This paper presents the study protocol. METHODS: The study design consists of a two-arm randomized controlled trial with two conditions: FC-SBD or Treatment as usual optimized (TAU-O). Participants will be relatives of patients who meet DSM-5 criteria for SBD. The caregivers` primary outcome measures will be the BAS. Secondary outcomes will be DASS-21, FES, DERS, QoL. The patient's primary outcome measures will be the frequency of critical incidents with the family member with SBD. Secondary measures will be the INQ, PHQ-9, OASIS. Participants will be assessed at pretreatment, post-treatment, and 6-month follow-up. The intention-to-treat principle will be used when analyzing the data. DISCUSSION: This study will provide results that confirm the efficacy of the FC-SBD in relatives of people with SBD. These results will also confirm its good acceptance by family members and help us to find out whether it is a good program to improve the prevention of suicidal behaviors in the family environment. TRIAL REGISTRATION: ClinicalTrials.gov ID: NCT05157607 . Registered 15 December 2021.
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Transtorno da Personalidade Borderline , Ideação Suicida , Ansiedade , Transtornos de Ansiedade/terapia , Humanos , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do TratamentoRESUMO
Scientific studies of language behavior need to grapple with a large diversity of languages in the world and, for reading, a further variability in writing systems. Yet, the ability to form meaningful theories of reading is contingent on the availability of cross-linguistic behavioral data. This paper offers new insights into aspects of reading behavior that are shared and those that vary systematically across languages through an investigation of eye-tracking data from 13 languages recorded during text reading. We begin with reporting a bibliometric analysis of eye-tracking studies showing that the current empirical base is insufficient for cross-linguistic comparisons. We respond to this empirical lacuna by presenting the Multilingual Eye-Movement Corpus (MECO), the product of an international multi-lab collaboration. We examine which behavioral indices differentiate between reading in written languages, and which measures are stable across languages. One of the findings is that readers of different languages vary considerably in their skipping rate (i.e., the likelihood of not fixating on a word even once) and that this variability is explained by cross-linguistic differences in word length distributions. In contrast, if readers do not skip a word, they tend to spend a similar average time viewing it. We outline the implications of these findings for theories of reading. We also describe prospective uses of the publicly available MECO data, and its further development plans.
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Leitura , HumanosRESUMO
Emotional dysregulation is a key symptom in participants with personality disorders. The Emotional Regulation Questionnaire (ERQ) has been studied with nonclinical samples; however, it is necessary to confirm the factorial structure of the ERQ in participants with personality disorders. The aims of the present study were to confirm the factorial structure of the Spanish version of the ERQ and analyse its psychometric properties as well as the association between the ERQ and the Borderline Symptoms List (BSL-23) and the Difficulties in Emotion Regulation Scale (DERS). The overall sample was composed of 250 patients with personality disorders, of whom 195 met the criteria for borderline personality disorder. Confirmatory factor analysis was conducted. The two-factor model showed an acceptable fit, similar to the original structure, in the participants with personality disorders and with borderline personality disorder. Cognitive reappraisal was negatively correlated with the DERS and BSL-23, and expressive suppression was positively correlated with the BSL-23. The ERQ is a reliable and valid instrument to evaluate emotional dysregulation in participants with personality disorders and participants with borderline personality disorder.
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Transtorno da Personalidade Borderline , Regulação Emocional , Análise Fatorial , Humanos , Transtornos da Personalidade , Psicometria , Reprodutibilidade dos Testes , Inquéritos e QuestionáriosRESUMO
Background: Sudden Infant Death Syndrome (SIDS) is defined as the death of an infant of less than 1 year, that is unexpected and unexplained after an extensive investigation. Risk factors related to SIDS have been identified, and most of them concern the infant's sleep position and environment. Objective: Our objective was to conduct a survey with parents and healthcare professionals at the Centro Hospitalar Universitário São João (CHUSJ), in order to assess their knowledge of SIDS and its risk factors. Materials and Methods: This study used two structured self-administered questionnaires aimed at evaluating the knowledge of parents and healthcare professionals about SIDS prevention. Results: Overall, 100% of healthcare professionals and 67.7% of parents were aware of SIDS. Besides, 82.3% of healthcare professionals and 47.5% of parents recognized the supine position as the safest to prevent SIDS. For each of the 13 questions in the questionnaire about SIDS risk factors, the majority of healthcare professionals identified the correct answer whereas among parents, only seven questions were correctly answered by the majority of respondents. Discussion and Conclusion: Healthcare professionals are not as well informed about SIDS as they should be and have little confidence in discussing SIDS-related issues. Therefore, this study highlights the paramount importance of ensuring that their training on this topic is up-to-date, especially due to their crucial role of (partial) gatekeepers of this information for parents, and that providing them with appropriate support could likely contribute to a substantial decrease in the number of SIDS cases.
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Morte Súbita do Lactente , Criança , Pré-Escolar , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Lactente , Portugal , Gravidez , Fatores de Risco , Sono , Morte Súbita do Lactente/prevenção & controle , Inquéritos e QuestionáriosRESUMO
Despite technical and pharmacological advancements in recent years, including optimized therapies and personalized medicine, postoperative pain management remains challenging and sometimes undertreated. This review aims to summarize and update how genotype-guided therapeutics within personalized medicine can enhance postoperative pain management. Several studies in the area have demonstrated that genotype-guided therapy has the ability to lower opioid consumption and improve postoperative pain. Gene mutations, primarily OPRM1, CYP2D6, CYP2C9, COMT and ABCB1, have been shown to exert nuanced influences on analgesic response and related pharmacological outcomes. This review underscores the integration of pharmacogenetic-guided personalized medicine into perioperative care, particularly when there is uncertainty regarding opioid prescriptions. This approach leads to superior outcomes in terms of postoperative pain relief and reduced morbidity for numerous patients.
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Chronic pain is an important cause of disability with a high burden to society. Quantitative sensory testing (QST) is a noninvasive multimodal method used to discriminate the function of nerve fibers. The aim of this study is to propose a new, reproducible, and less time-consuming thermal QST protocol to help characterize and monitor pain. Additionally, this study also compared QST outcomes between healthy and chronic pain subjects. Forty healthy young/adult medical students and fifty adult/elderly chronic pain patients were evaluated in individual sessions including pain history, followed by QST assessments divided into three proposed tests: pain threshold, suprathreshold, and tonic pain. In the chronic pain group, a significantly higher pain threshold (hypoesthesia) and a higher pain sensibility (hyperalgesia) were demonstrated at threshold temperature when compared to healthy participants. The sensitivity to the suprathreshold and tonic stimulus did not prove to be significantly different between both groups. The main results demonstrated that the heat threshold QST tests can be helpful in evaluating hypoesthesia and that the sensitivity threshold temperature test can demonstrate hyperalgesia in individuals with chronic pain. In conclusion, this study demonstrates the importance of using tools such as QST as a complement to detect changes in several pain dimensions.
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Optimal treatment and outcome after spinal hematoma remain unclear. Close neurological monitoring is the key to successful treatment. Here, we present a case of an infected spinal hematoma management. We report the case of a 51-year-old male patient, American Society of Anesthesiologists physical status I, admitted to a level I hospital due to right lower limb necrotizing fasciitis. A lumbar epidural catheter was placed for pain control without complications. On the 26th day of hospitalization, three hours after the accidental exteriorization of the epidural catheter, the patient developed severe back pain not relieved by systemic analgesia. Prophylactic low-molecular-weight heparin had been administered less than six hours before. The patient had inflammatory signs and digital pressure pain at the catheter insertion site and a positive Brudzinski sign. Sensory-motor deficits were never felt. An urgent dorsolumbar MRI exhibited a significant hematic collection at the subdural and anterior epidural level, and an infected epidural hematoma was assumed. Empirical antibiotics and hourly monitoring of sensory-motor deficits, meningeal signs, and fever were initiated. The patient remained on absolute bed rest. Low-molecular-weight heparin was stopped. The pain disappeared on the third day after the MRI. Citrobacter koseri was isolated. A re-evaluation CT scan did not show spinal compression. The patient was discharged on the 27th day after an MRI in an asymptomatic condition and was referred to acute pain consultation. Neurological deficits are usually expected at the time of spinal hematoma diagnosis. However, the classic triad of pain, sensory deficits, and motor deficits is only seen in less than half of patients. Our patient only developed severe lumbar pain. In selected cases, diagnostic MRI associated with tight monitoring and conservative management can be applied.
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This prospective observational clinical study in a population of tetraplegic and paraplegic dogs (n = 488) with or without deep pain sensation, similar to humans ASIA A and B, investigated the prevalence of clinical occurrences in a rehabilitation center with a hospitalization regime between 15 days and 9 months. A checklist of occurrences was used for easy identification and monitoring, resulting in a total of 79.5% occurrences. There were 58% of dogs with neurogenic bladder, 35.5% with diarrhea, 21.3% with urinary incontinence, and 20.5% with fecal incontinence. A low incidence of respiratory problems (e.g., pneumonia) and urinary tract infections may suggest the efficacy of some applied measures in this study, such as thoracic and abdominal POCUS evaluation, positioning strategies, physical exercises, respiratory kinesiotherapy, and early implementation of a functional neurorehabilitation protocol. These can be essential measures to prevent clinical occurrences, mainly in breeds such as the French Bulldog and the Dachshund.
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Background: Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are associated with moderate to severe postoperative pain (POP). POP is theoretically predictable and may be influenced by sociocultural differences. This study aimed to identify the relationship between POP and the sociocultural level of the patient undergoing THA or TKA. Methods: Prospective study, involving informed-consenting adults conducted through consulting patient's clinical processes, preoperative and postoperative questionnaires. Demographic and anthropometric data, type of surgery, ASA classification, sociocultural level of the patient, and POP were assessed. Results: 95 patients, all Caucasian and natural from the north of the Portugal, were included. Younger women undergoing TKA reported higher levels of POP. In females, the ASA 3 physical condition was also associated with higher mean pain intensity. Patients with preoperative chronic pain, without depression diagnosis, and unsatisfied with the current profession showed higher levels of reported POP. Retirees, with lower school degree, reported higher levels of minimal pain. Conclusions: Job satisfaction, type of surgery, body mass index, presence of chronic pain, and the absence of depression were identified as the main predictors of pain after THA or TKA.
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BACKGROUND: Regional anesthesia has been increasingly used. Despite its low number of complications, they are associated with relevant morbidity. This study aims to evaluate the incidence of complications after neuraxial block and peripheral nerve block. METHODS: A retrospective cohort study was conducted, and data related to patients submitted to neuraxial block and peripheral nerve block at a tertiary university hospital from January 1, 2011 to December 31, 2017 were analyzed. RESULTS: From 10,838 patients referred to Acute Pain Unit, 1093(10.1%) had side effects or complications: 1039 (11.4%) submitted to neuraxial block and 54 (5.2%) to peripheral nerve block. The most common side effects after neuraxial block were sensory (48.5%) or motor deficits (11.8%), nausea or vomiting (17.5%) and pruritus (8.0%); The most common complications: 3 (0.03%) subcutaneous cell tissue hematoma, 3 (0.03%) epidural abscesses and 1 (0.01%) arachnoiditis. 204 of these patients presented sensory or motor deficits at hospital discharge and needed follow-up. Permanent peripheral nerve injury after neuraxial block had an incidence of 7.7:10,000 (0.08%). The most common side effects after peripheral nerve block were sensory deficits (52%) and 21 patients maintained follow-up due to symptoms persistence after hospital discharge. CONCLUSION: Although we found similar incidences of side effects or even lower than those described, major complications after neuraxial block had a higher incidence, particularly epidural abscesses. Despite this, other serious complications, such as spinal hematoma and permanent peripheral nerve injury, are still rare.
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Dor Aguda , Anestesia por Condução , Anestesia Epidural , Traumatismos dos Nervos Periféricos , Abscesso/complicações , Dor Aguda/etiologia , Anestesia por Condução/efeitos adversos , Anestesia Epidural/efeitos adversos , Hematoma/etiologia , Hospitais , Humanos , Traumatismos dos Nervos Periféricos/etiologia , Estudos Retrospectivos , Atenção Terciária à SaúdeRESUMO
INTRODUCTION: Children and adolescents are a relevant and increasing proportion of travelers. Injuries and infectious diseases in children are safety concerns when traveling. However, data on diseases and injuries during international travels in children are not available. The aims of this study were to analyze travel-related diseases and injuries among pediatric travelers during and after international trips, to identify risk factors for travel-associated disease, and to evaluate the compliance and effectiveness of the recommendations provided in pre-travel appointments. MATERIAL AND METHODS: We enrolled travelers aged under 18 years attending a pre-travel clinic, in a tertiary hospital (2017 - 2019); 223 of the 370 pediatric travelers attending the pre-travel clinic were included. The study was based on a questionnaire designed to address health and safety issues - vaccines and chemoprophylaxis, including side effects, the occurrence of disease or injury, diagnosis, treatment, and outcomes. RESULTS: The median age at pre-travel evaluation was eight years; 39.7% of the travelers were adolescents, 52.5% were female. The participants traveled to 40 countries across four continents, with a median travel duration of 14.5 days. Asia was the most visited continent. Traveling was safe for 84.8%. From 34 travelers who had illness/injury, gastrointestinal symptoms were elicited in 41.2%. Sixteen (47.1%) travelers required an urgent medical appointment at the destination, and no one was hospitalized. Destinations in Africa and longer trips were significantly associated with a higher occurrence of disease/injury (p = 0.023 and p < 0.001, respectively). In a multivariable model, traveling to Africa was still significantly associated with travel-related disease/injury [OR = 2.736 (1.037 - 7.234)]. CONCLUSION: Disease/injury occurred in 15.2% of pediatric travelers. Even though 47.1% of the travelers required an urgent medical appointment, the developed conditions were not severe enough to warrant hospitalization. Travels to Africa and longer trips seem to be associated with a higher risk of disease and injury.
Introdução: As crianças e adolescentes representam uma proporção relevante e crescente de viajantes. As doenças infeciosas e as lesões em crianças durante viagens internacionais são motivo de preocupação relacionada com segurança; no entanto, os dados na idade pediátrica são amplamente desconhecidos. Os objetivos deste estudo foram analisar as doenças e lesões relacionadas com as viagens ocorridas em viajantes em idade pediátrica, durante e após viagens internacionais, identificar fatores de risco para a ocorrência de doenças associadas à viagem, e avaliar o cumprimento e a eficácia das recomendações fornecidas na consulta pré-viagem. Material e Métodos: Incluímos viajantes com idade inferior a 18 anos avaliados na consulta do viajante num hospital terciário (2017 - 2019). O estudo baseou-se num questionário, desenhado para abordar questões de saúde e segurança vacinas e quimioprofilaxia, incluindo efeitos colaterais, ocorrência de doença ou lesão, diagnóstico, tratamento e resultado. Resultados: Foram incluídos 223 dos 370 viajantes pediátricos observados na consulta do viajante. A mediana da idade à data da consulta era oito anos, 39,7% eram adolescentes e 52,5% eram do sexo feminino. Os participantes viajaram para 40 países, em quatro continentes, e a mediana da duração da viagem foi 14,5 dias. O continente asiático foi o mais visitado. A viagem foi segura em 84,8% dos casos. Nos 34 viajantes que apresentaram doença/lesão, verificaram-se sintomas gastrointestinais em 41,2%. Dezasseis (47,1%) viajantes necessitaram de consulta médica urgente no destino e nenhum foi hospitalizado. Destinos em África e viagens mais longas foram associados, significativamente, a maior ocorrência de doença/lesão (p = 0,023 e p < 0,001, respetivamente). No modelo multivariável, viajar para África foi associado, significativamente, a doença/lesão [OR = 2,736 (1,037 - 7,234)]. Conclusão: A viagem associou-se a doença/lesão em 15,2% dos viajantes pediátricos. Embora não requerendo hospitalização, 47,1% dos viajantes necessitaram de consulta médica urgente. África e viagens mais longas parecem estar associados a risco maior de doenças/lesões.
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Doença Relacionada a Viagens , Viagem , Criança , Adolescente , Feminino , Humanos , Idoso , Masculino , Inquéritos e Questionários , Fatores de Risco , HospitalizaçãoRESUMO
INTRODUCTION: Some studies have demonstrated that the intrinsic muscles of the larynx show no signs of damage to the muscle fiber and raise a possibility of preservation of the laryngeal muscles in muscular dystrophies. A cross-sectional study was implemented with a case series of patients with Duchenne muscular dystrophy. METHODS: This study was carried out through a medical assessment through anamnesis and medical records, perceptual-auditory evaluation of the voice in 15 patients, and videolaryngoscopic evaluation in 11 patients. RESULTS: All patients had the maximum phonation time of the vowel /e/ decreased, 7 (46.7%) had reduced loudness while 10 (66.7%) had vocal asthenia. There were no changes in muscular tone and mobility in the videolaryngoscopy. DISCUSSION: Patients with Duchene muscular dystrophy do not present abnormalities suggestive of the involvement of the intrinsic muscles of the larynx but have vocal worsening due to pulmonary impairment.
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Distrofia Muscular de Duchenne , Humanos , Distrofia Muscular de Duchenne/complicações , Distrofia Muscular de Duchenne/diagnóstico , Estudos Transversais , Músculos , Músculos LaríngeosRESUMO
This study evaluated the effect of the extract and fractions of Bauhinia holophylla on Candida albicans planktonic growth, biofilm formation, mature biofilm, and hyphae growth. Three C. albicans strains (SC5314, ATCC 18804, and ATCC 10231) were tested. The crude extract and the fractions were obtained by exhaustive percolation and liquid-liquid partition, respectively. Phytochemical analyses of B. holophylla extract and fractions were performed using high-performance liquid chromatography coupled with a diode-array detector and mass spectrometry (HPLC-DAD-MS). A microdilution assay was used to evaluate the effect of the B. holophylla extract and fractions on C. albicans planktonic growth, and crystal violet staining was used to measure the total biomass of the biofilm. Hyphae growth was analyzed using light microscopy. Thirteen flavonoids were identified, with a predominance of the flavonol-3-O-glycoside type based on quercetin, myricetin, and kaempferol. Flavonoid-rich fractions of B. holophylla leaves displayed antifungal activity and inhibited both biofilm formation and hyphae growth in all the tested strains, but were not effective on C. albicans planktonic growth and mature biofilm. This study indicates that flavonoid-rich fractions from B. holophylla leaves interfere with the virulence of Candida species and support the use of Bauhinia spp. in folk medicine to treat infections.
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Not required for Clinical Vignette.
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Hipoglicemia/etiologia , Hipopituitarismo/congênito , Hipopituitarismo/diagnóstico , Icterícia Obstrutiva/etiologia , Hepatopatias/etiologia , Encéfalo/diagnóstico por imagem , Criança , Retardo do Crescimento Fetal , Humanos , Hipoglicemia/diagnóstico , Hipopituitarismo/complicações , Lactente , Recém-Nascido , Hepatopatias/complicações , Hepatopatias/diagnóstico , Imageamento por Ressonância MagnéticaRESUMO
Endobronchial mucoepidermoid tumors are rare neoplasms. Due to nonspecific symptoms, diagnosis can be challenging, but early diagnosis and treatment are crucial for prognosis. We present the case of a boy, with chronic respiratory insufficiency due to bronchiolitis obliterans, that presented worsening exertional dyspnea at 12 years. Spirometry showed unexpected deterioration of respiratory function and a computed tomography scan revealed an obstructive polypoid mass in the intermediate bronchus. Given the severe basal ventilatory compromise and risk associated with surgical treatment, rigid bronchoscopy, and laser photocoagulation were performed, with clinical and functional improvement. The histological examination revealed a low-grade mucoepidermoid carcinoma. The option for a minimally invasive procedure requires careful follow-up due to the risk of tumor recurrence.
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Neoplasias Brônquicas , Bronquiolite Obliterante , Carcinoma Mucoepidermoide , Neoplasias Brônquicas/complicações , Neoplasias Brônquicas/diagnóstico por imagem , Neoplasias Brônquicas/cirurgia , Broncoscopia , Carcinoma Mucoepidermoide/diagnóstico por imagem , Carcinoma Mucoepidermoide/cirurgia , Criança , Humanos , Masculino , Recidiva Local de NeoplasiaRESUMO
BACKGROUND: Alpha-amylases are enzymes capable of degrading polysaccharides, such as starch and glycogen. Found in various organisms, such as fungi and bacteria, these enzymes have great biotechnological potential due to their insertion in several industrial sectors ranging from food to biofuels. OBJECTIVE: The aim of this study was to analyze patents deposited in intellectual property databases on alpha-amylases in the fields of food, beverages, detergents, animal feeds, biofuels, pharmaceuticals and textiles, with the search period being 5 years. METHODS: This study targeted the use of alpha-amylases in various industrial sectors, so searches were carried out on the intellectual property database Espacenet website (European Patent Office - EPO) which contains more than 90 million patents deposited in its database. RESULTS: During the search for patents filed in the last 5 years, 186 were found related to the use of alpha-amylases. These were disturbed as follows: 84 (biofuel), 41 (drinks), 16 (pharmaceuticals), 15 (detergents), 11 (food), 10 (animal feed), 9 (textiles). From the total number of patents found, we selected 6 from each area, except pharmaceutical products, to discuss and provide information on the application of this enzyme. CONCLUSION: This study demonstrated that the sectors of beverages and animal feed have preferences for thermostable alpha-amylases while sectors such as food, biofuels and textiles only regarded the importance of enzymatic efficiency. The detergent sector presented the greatest use of alpha-amylases which had distinct biochemical characteristics as solvent resistance and thermostability. The pharmaceutical sector was the one that presented less patents related to the application of alpha amylases. In addition, this work showed that China is the country with the highest patent registration for the use of alpha-amylases in the analyzed period.