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1.
Article in English | MEDLINE | ID: mdl-38719718

ABSTRACT

BACKGROUND: Autologous stem cell transplantation is a treatment modality for several diseases. Prediction of successful mobilization may be useful to optimize hematopoietic stem cell collection. STUDY DESIGN AND METHODS: This was a retrospective study with data from transplantation candidates between September 2015 and December 2021 being analyzed. The medical record of each patient was reviewed to mine mobilization information. The laboratory data analyzed were CD34+ cell enumeration and pre-collection peripheral blood cell count. The primary outcome, good mobilization, was defined as a CD34+ cell count ≥20/µL. RESULTS: This study included 807 patients. Increased patient weight, low mean corpuscular volume, high nucleated red blood cells, peripheral blood mononuclear cell and immature granulocyte counts were significantly associated with good mobilization. In addition, patients diagnosed with multiple myeloma were two times more likely to be good mobilizers than patients with lymphoma. The model was applied to a validation set to identify patients who underwent apheresis (CD34+ cell count ≥10 µL), resulting in a sensitivity of 69 %, a specificity of 95 %, positive predictive value of 98 %, and a negative predictive value of 50 %. CONCLUSION: Success in mobilization was greater in patients who underwent the first mobilization cycle and who had a diagnosis of multiple myeloma. Furthermore, higher body weight, and nucleated red blood cells, immature granulocytes and mononuclear cell counts, as well as low mean corpuscular volumes, were associated with successful mobilization.

2.
Seizure ; 118: 148-155, 2024 May.
Article in English | MEDLINE | ID: mdl-38704883

ABSTRACT

PURPOSE: This study aimed to identify continuous epileptiform discharges (CEDs) on electroencephalograms (EEG) and to determine their clinical significance in children with congenital Zika syndrome (CZS). METHODS: This prospective cohort study included 75 children diagnosed with CZS born from March 2015 and followed up until September 2018 (age up to 36 months). EEG was performed to detect CEDs up to 24 months old. Data on obstetric, demographic, and clinical signs; cranial computed tomography (CT); ophthalmology examination; anti-seizure medication; growth; and motor development were collected. Fisher's exact test was used to verify the associations between categorical variables, and the T- test was used to compare the mean z-scores of anthropometric measurements between the groups with and without CED. RESULTS: CEDs were identified in 41 (54.67 %) children. The mean age of CEDs identification was 12.24 ± 6.86 months. Bilateral CEDs were shown in 62.89 % of EEGs. CEDs were associated with severe congenital microcephaly, defined by z-score >3 standard deviation of head circumference (HC) below the mean for sex and age (p = 0.025), and worse outcomes, including first seizure before 6 months (p = 0.004), drug-resistant epilepsy (p < 0.001), chorioretinal scarring or mottling (p = 0.002), and severe CT findings (p = 0.002). The CED group had lower mean z-scores of HC up to 24 months of age. CONCLUSION: This is the first description of the prevalence and significance of CEDs that also remains during wakefulness in patients with CZS. New investigations may suggest that it is more appropriate to classify the EEG not as a CED, but as a periodic pattern. Anyway, CEDs may be a marker of neurological severity in children with CSZ.


Subject(s)
Electroencephalography , Zika Virus Infection , Humans , Zika Virus Infection/complications , Zika Virus Infection/physiopathology , Zika Virus Infection/congenital , Female , Male , Infant , Prospective Studies , Child, Preschool , Microcephaly/physiopathology , Microcephaly/diagnostic imaging , Epilepsy/physiopathology , Neurodevelopmental Disorders/etiology , Neurodevelopmental Disorders/physiopathology
3.
Microorganisms ; 12(4)2024 Apr 03.
Article in English | MEDLINE | ID: mdl-38674668

ABSTRACT

Bacillus and related genera are among the most important contaminants in the pharmaceutical production environment, and the identification of these microorganisms at the species level assists in the investigation of sources of contamination and in preventive and corrective decision making. The aim of this study was to evaluate three methodologies for the characterization of endospore-forming aerobic bacterial strains isolated from a pharmaceutical unit in Rio de Janeiro, Brazil. MALDI-TOF MS was performed using MALDI Biotyper® and VITEK® MS RUO systems, and complete 16S rRNA gene sequencing was performed using the Sanger methodology. The results showed the prevalence of the genera Bacillus (n = 9; 36.0%), Priestia (n = 5; 20.0%), and Paenibacillus (n = 4; 16.0%). Three (20.0%) strains showed <98.7% of DNA sequencing similarity on the EzBioCloud Database, indicating possible new species. In addition, the reclassification of Bacillus pseudoflexus to the genus Priestia as Priestia pseudoflexus sp. nov. is proposed. In conclusion, 16S rRNA and MALDI TOF/MS were not sufficient to identify all strains at the species level, and complementary analyses were necessary.

4.
Pharmaceuticals (Basel) ; 17(4)2024 Mar 28.
Article in English | MEDLINE | ID: mdl-38675398

ABSTRACT

The LABEXTRACT plant extract bank, featuring diverse members of the Myrtaceae family from Brazilian hot spot regions, provides a promising avenue for bioprospection. Given the pivotal roles of the Spike protein and 3CLpro and PLpro proteases in SARS-CoV-2 infection, this study delves into the correlations between the Myrtaceae species from the Atlantic Forest and these targets, as well as an antiviral activity through both in vitro and in silico analyses. The results uncovered notable inhibitory effects, with Eugenia prasina and E. mosenii standing out, while E. mosenii proved to be multitarget, presenting inhibition values above 72% in the three targets analyzed. All extracts inhibited viral replication in Calu-3 cells (EC50 was lower than 8.3 µg·mL-1). Chemometric analyses, through LC-MS/MS, encompassing prediction models and molecular networking, identified potential active compounds, such as myrtucommulones, described in the literature for their antiviral activity. Docking analyses showed that one undescribed myrtucommulone (m/z 841 [M - H]-) had a higher fitness score when interacting with the targets of this study, including ACE2, Spike, PLpro and 3CLpro of SARS-CoV-2. Also, the study concludes that Myrtaceae extracts, particularly from E. mosenii and E. prasina, exhibit promising inhibitory effects against crucial stages in SARS-CoV-2 infection. Compounds like myrtucommulones emerge as potential anti-SARS-CoV-2 agents, warranting further exploration.

5.
Biochim Biophys Acta Mol Basis Dis ; 1870(5): 167155, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38579939

ABSTRACT

Tubular proteinuria is a common feature in COVID-19 patients, even in the absence of established acute kidney injury. SARS-CoV-2 spike protein (S protein) was shown to inhibit megalin-mediated albumin endocytosis in proximal tubule epithelial cells (PTECs). Angiotensin-converting enzyme type 2 (ACE2) was not directly involved. Since Toll-like receptor 4 (TLR4) mediates S protein effects in various cell types, we hypothesized that TLR4 could be participating in the inhibition of PTECs albumin endocytosis elicited by S protein. Two different models of PTECs were used: porcine proximal tubule cells (LLC-PK1) and human embryonic kidney cells (HEK-293). S protein reduced Akt activity by specifically inhibiting of threonine 308 (Thr308) phosphorylation, a process mediated by phosphoinositide-dependent kinase 1 (PDK1). GSK2334470, a PDK1 inhibitor, decreased albumin endocytosis and megalin expression mimicking S protein effect. S protein did not change total TLR4 expression but decreased its surface expression. LPS-RS, a TLR4 antagonist, also counteracted the effects of the S protein on Akt phosphorylation at Thr308, albumin endocytosis, and megalin expression. Conversely, these effects of the S protein were replicated by LPS, an agonist of TLR4. Incubation of PTECs with a pseudovirus containing S protein inhibited albumin endocytosis. Null or VSV-G pseudovirus, used as control, had no effect. LPS-RS prevented the inhibitory impact of pseudovirus containing the S protein on albumin endocytosis but had no influence on virus internalization. Our findings demonstrate that the inhibitory effect of the S protein on albumin endocytosis in PTECs is mediated through TLR4, resulting from a reduction in megalin expression.


Subject(s)
Endocytosis , Kidney Tubules, Proximal , SARS-CoV-2 , Spike Glycoprotein, Coronavirus , Toll-Like Receptor 4 , Toll-Like Receptor 4/metabolism , Endocytosis/drug effects , Humans , Kidney Tubules, Proximal/metabolism , Kidney Tubules, Proximal/virology , Animals , Spike Glycoprotein, Coronavirus/metabolism , SARS-CoV-2/metabolism , HEK293 Cells , Swine , Proto-Oncogene Proteins c-akt/metabolism , Phosphorylation , COVID-19/metabolism , COVID-19/virology , COVID-19/pathology , Albumins/metabolism , LLC-PK1 Cells , Epithelial Cells/metabolism , Epithelial Cells/virology
6.
Clin Nutr ESPEN ; 60: 65-72, 2024 04.
Article in English | MEDLINE | ID: mdl-38479941

ABSTRACT

BACKGROUND & AIMS: Ultrasonography (US) is a promising tool for assessing body composition, offering accuracy and accessibility. However, technician skills and equipment characteristics can impact measurement reliability. We aimed to evaluate the intra- and inter-rater reliability of two evaluators using A-mode Portable Ultrasound to measure muscle and fat thickness in Brazilian older adults. METHODS: Quantitative cross-sectional study carried out with 150 community-dwelling older adults of Campinas-SP-Brazil, recruited in a retirement preparation program and a geriatric outpatient care unit. Scans of nine anatomical points were performed using the portable ultrasound in A-mode (BodyMetrix Pro System BX2000; Livermore, CA), with 6 scans per location and 3 measurements taken by each evaluator. After the selection and analysis of the generated images, muscle and fat thickness were measured. Reliability estimates between measures of the same evaluator (intra-rater) and between evaluators (inter-rater) were assessed using intraclass correlation coefficients (ICC), and differences within and between technicians were assessed using one-way ANOVA. Analyses were carried out for the overall sample and stratified by sex and by nutritional status. RESULTS: Excellent ICC values (>0.90) were found for subcutaneous fat thickness in intra- and inter-rater reliability analyses. The lowest ICC values were observed for deep abdominal fat thickness measured by evaluator 1 (ICC = 0.90) and evaluator 2 (ICC = 0.87), as well as in the inter-rater analysis (ICC = 0.85). Muscle thickness measurements had satisfactory ICC values for triceps, biceps, anterior thigh, and calf, ranging from moderate to good (ICC 0.50-0.90). CONCLUSION: A portable A-mode ultrasound demonstrates excellent reliability among both intra- and inter-raters for assessing fat thickness but only moderate for muscle thickness in older adults. Hence, this could prompt inquiries regarding the sole reliance on this tool for quantifying muscle mass and examining sarcopenia in older adults. To our knowledge, this study represents the first assessment of reliability for a portable A-mode ultrasound device conducted with older adults.


Subject(s)
Muscle, Skeletal , Subcutaneous Fat , Humans , Aged , Reproducibility of Results , Cross-Sectional Studies , Ultrasonography/methods , Muscle, Skeletal/diagnostic imaging
7.
Artif Organs ; 2024 Feb 22.
Article in English | MEDLINE | ID: mdl-38385713

ABSTRACT

BACKGROUND: The SARS-CoV-2 pandemic has spurred an unparalleled scientific endeavor to elucidate the virus' structure, infection mechanisms, and pathogenesis. Two-dimensional culture systems have been instrumental in shedding light on numerous aspects of COVID-19. However, these in vitro systems lack the physiological complexity to comprehend the infection process and explore treatment options. Three-dimensional (3D) models have been proposed to fill the gap between 2D cultures and in vivo studies. Specifically, spheroids, composed of lung cell types, have been suggested for studying SARS-CoV-2 infection and serving as a drug screening platform. METHODS: 3D lung spheroids were prepared by coculturing human alveolar or bronchial epithelial cells with human lung stromal cells. The morphology, size, and ultrastructure of spheroids before and after SARS-CoV-2 infection were analyzed using optical and electron microscopy. Immunohistochemistry was used to detect spike protein and, thus, the virus presence in the spheroids. Multiplex analysis elucidated the cytokine release after virus infection. RESULTS: The spheroids were stable and kept their size and morphology after SARS-CoV-2 infection despite the presence of multivesicular bodies, endoplasmic reticulum rearrangement, tubular compartment-enclosed vesicles, and the accumulation of viral particles. The spheroid responded to the infection releasing IL-6 and IL-8 cytokines. CONCLUSION: This study demonstrates that coculture spheroids of epithelial and stromal cells can serve as a cost-effective infection model for the SARS-CoV-2 virus. We suggest using this 3D spheroid as a drug screening platform to explore new treatments related to the cytokines released during virus infection, especially for long COVID treatment.

8.
Histochem Cell Biol ; 161(1): 59-67, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37736815

ABSTRACT

Despite being extensively studied because of the current coronavirus disease 2019 (COVID-19) pandemic, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) interactions with mammalian cells are still poorly understood. Furthermore, little is known about this coronavirus cycle within the host cells, particularly the steps that lead to viral egress. This study aimed to shed light on the morphological features of SARS-CoV-2 egress by utilizing transmission and high-resolution scanning electron microscopy, along with serial electron tomography, to describe the route of nascent virions towards the extracellular medium. Electron microscopy revealed that the clusters of viruses in the paracellular space did not seem to result from collective virus release. Instead, virus accumulation was observed on incurved areas of the cell surface, with egress primarily occurring through individual vesicles. Additionally, our findings showed that the emission of long membrane projections, which could facilitate virus surfing in Vero cells infected with SARS-CoV-2, was also observed in non-infected cultures, suggesting that these are constitutive events in this cell lineage.


Subject(s)
COVID-19 , SARS-CoV-2 , Animals , Chlorocebus aethiops , Vero Cells , Cell Line , Microscopy, Electron, Scanning , Mammals
9.
Arch Pharm (Weinheim) ; 357(2): e2300560, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38032154

ABSTRACT

Tuberculosis (TB) disease, caused by Mycobacterium tuberculosis (Mtb) is the leading cause of death among people with human immunodeficiency virus (HIV) infection. No dual-target drug is currently being used to simultaneously treat both infections. This work aimed to obtain new multitarget HIV-TB agents, with the goal of optimizing treatments and preventing this coinfection. These compounds incorporate the structural features of azaaurones as anti-Mtb and zidovudine (AZT) as the antiretroviral moiety. The azaaurone scaffold displayed submicromolar activities against Mtb, and AZT is a potent antiretroviral drug. Six derivatives were synthetically generated, and five were evaluated against both infective agents. Evaluations of anti-HIV activity were carried out in HIV-1-infected MT-4 cells and on endogenous HIV-1 reverse transcriptase (RT) activity. The H37Rv strain was used for anti-Mtb assessments. Most compounds displayed potent antitubercular and moderate anti-HIV activity. (E)-12 exhibited a promising multitarget profile with an MIC90 of 2.82 µM and an IC50 of 1.98 µM in HIV-1-infected T lymphocyte cells, with an 84% inhibition of RT activity. Therefore, (E)-12 could be the first promising compound from a family of multitarget agents used to treat HIV-TB coinfection. In addition, the compound could offer a prototype for the development of new strategies in scientific research to treat this global health issue.


Subject(s)
Benzofurans , Coinfection , HIV Infections , HIV-1 , Mycobacterium tuberculosis , Tuberculosis , Humans , Coinfection/drug therapy , Structure-Activity Relationship , Tuberculosis/drug therapy , Tuberculosis/microbiology , Antitubercular Agents/pharmacology , Antitubercular Agents/chemistry , HIV Infections/drug therapy , Anti-Retroviral Agents/pharmacology
10.
Rev Lat Am Enfermagem ; 31: e4079, 2023.
Article in Spanish, English, Portuguese | MEDLINE | ID: mdl-38055593

ABSTRACT

OBJECTIVE: to analyze the temporal pattern and estimate mortality rates in the first 24 hours of life and from preventable causes in the state of Pernambuco from 2000 to 2021. METHOD: an ecological study, using the quarter as the unit of analysis. The data source was made up of the Mortality Information System and the Live Birth Information System. The time series modeling was conducted according to the Autoregressive Integrated Moving Average Model. RESULTS: 14,462 deaths were recorded in the first 24 hours of life, 11,110 (76.8%) of which being preventable. It is observed from the forecasts that the mortality rate in the first 24 hours of life ranged from 3.3 to 2.4 per 1,000 live births, and the mortality rate from preventable causes ranged from 2.3 to 1.8 per 1,000 live births. CONCLUSION: the prediction suggested progress in reducing mortality in the first 24 hours of life in the state and from preventable causes. The ARIMA models presented satisfactory estimates for mortality rates and preventable causes in the first 24 hours of life.


Subject(s)
Information Systems , Mortality , Humans , Cause of Death , Brazil
11.
Rev. Bras. Odontol. Leg. RBOL ; 10(3): 12-22, 2023-12-30.
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1532854

ABSTRACT

Introdução: Atualmente no Brasil têm-se evidenciado um número elevado de profissionais da Odontologia que utilizam diversas estratégias de marketing para garantir e atrair clientela, como as publicações nas redes sociais, que tem ocasionado um aumento significativo de infrações éticas cometidas por cirurgiões-dentistas. Objetivo: Analisar infrações éticas atreladas à publicidade e propaganda em perfis de cirurgiões-dentistas e clínicas odontológicas do estado da Paraíba na rede social Instagram®. Metodologia: O estudo observacional, transversal, descritivo foi realizado a partir da análise de 572 perfis. Foram avaliadas postagens públicas à luz do Código de Ética Odontológico (CEO) e da Resolução CFO nº 196/2019. Buscaram-se perfis abertos por meio dos termos chaves: "clínica odontológica", "dental", "dentista", "Odontologia" combinados com: "Paraíba", "PB". Resultados: A partir da análise dos itens de investigação verificou-se algum tipo de violação ética ao CEO e/ou Resolução na maioria dos perfis. Os itens com maiores índices de infração estiveram relacionados a postagens com a exibição do termo "diagnóstico x conclusão" sem menção do Termo de Consentimento Livre e Esclarecido e de vídeos e/ou imagens com conteúdo relativo ao transcurso do procedimento. Conclusão: É evidente que a maioria dos perfis analisados no presente estudo infringiu de alguma forma a ética quanto à publicidade e propaganda. Nessa perspectiva, é necessário que haja uma maior orientação e fiscalização por parte do conselho, bem como que os profissionais estejam atentos e façam cumprir os preceitos éticos estabelecidos pelo CEO, zelando assim, pelo bom prestígio da profissão


Introduction: Currently in Brazil, it has been evidenced a high number of dental professionals who use various marketing strategies to ensure and attract customers, such as publications on social networks, which has caused a significant increase in ethical violations committed by dentists. Objective: To analyze ethical violations linked to advertising and propaganda in profiles of dentists and dental clinics in the state of Paraíba in the social network Instagram®. Methodology: The observational, cross-sectional, descriptive study was conducted from the analysis of 572 profiles. Public posts were evaluated in the light of the Code of Dental Ethics (CEO) and CFO Resolution No. 196/2019. Open profiles were searched using the key terms: "dental clinic", "dental", "dentist", "Dentistry" combined with: "Paraíba", "PB". Results: From the analysis of the research items there was some type of ethical violation of the CEO and/or Resolution in most of the profiles. The items with the highest rates of violation were related to posts with the display of the term "diagnosis x conclusion" without mention of the Informed Consent Form and videos and/or images with content related to the course of the procedure. Conclusion: It is clear that most of the profiles analyzed in this study have somehow infringed ethics regarding advertising and propaganda. In this perspective, it is necessary that there is greater guidance and supervision by the council and those professionals are aware and enforce the ethical precepts established by the CEO, thus ensuring the good prestige of the profession.

12.
Rev. latinoam. enferm. (Online) ; 31: e4079, Jan.-Dec. 2023. tab, graf
Article in Spanish | LILACS, BDENF - Nursing | ID: biblio-1530188

ABSTRACT

Objetivo: analizar el patrón temporal y estimar las tasas de mortalidad en las primeras 24 horas de vida y por causas evitables en el estado de Pernambuco en el período de 2000 a 2021. Método: estudio ecológico, teniendo como unidad de análisis el trimestre. La fuente de datos se constituyó por el Sistema de Informaciones sobre Mortalidad y el Sistema de Informaciones sobre Nacidos Vivos. El modelado de series temporales se realizó según el Modelo Autorregresivo Integrado de Promedio Móvil. Resultados: se registraron 14.462 óbitos en las primeras 24 horas de vida, siendo 11.110 (el 76,8%) evitables. Se observa para los pronósticos ( forecasts) que la tasa de mortalidad en las primeras 24 horas de vida registro una variación de 3,3 a 2,4 por 1.000 nacidos vivos, y la tasa de mortalidad por causas evitables de 2,3 a 1,8 por 1.000 nacidos vivos. Conclusión: la predicción sugirió avances en la reducción de la mortalidad en las primeras 24 horas de vida en el estado y por causas evitables. Los modelos ARIMA presentaron estimaciones satisfactorias para las tasas de mortalidad y por causas evitables en las primeras 24 horas de vida.


Objective: to analyze the temporal pattern and estimate mortality rates in the first 24 hours of life and from preventable causes in the state of Pernambuco from 2000 to 2021. Method: an ecological study, using the quarter as the unit of analysis. The data source was made up of the Mortality Information System and the Live Birth Information System. The time series modeling was conducted according to the Autoregressive Integrated Moving Average Model. Results: 14,462 deaths were recorded in the first 24 hours of life, 11,110 (76.8%) of which being preventable. It is observed from the forecasts that the mortality rate in the first 24 hours of life ranged from 3.3 to 2.4 per 1,000 live births, and the mortality rate from preventable causes ranged from 2.3 to 1.8 per 1,000 live births. Conclusion: the prediction suggested progress in reducing mortality in the first 24 hours of life in the state and from preventable causes. The ARIMA models presented satisfactory estimates for mortality rates and preventable causes in the first 24 hours of life.


Objetivo: analisar o padrão temporal e estimar as taxas de mortalidade nas primeiras 24 horas de vida e por causas evitáveis no estado de Pernambuco no período de 2000 a 2021. Método: estudo ecológico, tendo como unidade de análise o trimestre. A fonte de dados foi constituída pelo Sistema de Informações sobre Mortalidade e pelo Sistema de Informações sobre Nascidos Vivos. A modelagem da série temporal foi conduzida segundo o Modelo Autorregressivo Integrado de Médias Móveis. Resultados: foram registrados 14.462 óbitos nas primeiras 24 horas de vida, sendo 11.110 (76,8%) evitáveis. Observa-se para os forecasts que a taxa de mortalidade nas primeiras 24 horas de vida variou de 3,3 a 2,4 por 1.000 nascidos vivos, e a taxa de mortalidade por causas evitáveis variou de 2,3 a 1,8 por 1.000 nascidos vivos. Conclusão: a previsão sugeriu avanços na redução da mortalidade nas primeiras 24 horas de vida no estado e por causas evitáveis. Os modelos ARIMA apresentaram estimativas satisfatórias para as taxas de mortalidade e por causas evitáveis nas primeiras 24 horas de vida.


Subject(s)
Humans , Infant, Newborn , Brazil , Information Systems , Mortality , Cause of Death
13.
J Appl Microbiol ; 134(10)2023 Oct 04.
Article in English | MEDLINE | ID: mdl-37838475

ABSTRACT

AIMS: Evaluate methods for identification and typing of Stenotrophomonas maltophilia isolated from a pharmaceutical facility. METHODS AND RESULTS: From 270 S. maltophilia strains identified by VITEK®2, 40 were selected and submitted to MALDI TOF-MS, 16S and 23S rRNA gene analysis, enterobacterial repetitive intergenic consensus-polymerase chain reaction (ERIC-PCR), and an antimicrobial susceptibility profile. 16S rRNA sequencing was able to identify 39 (97.5%) strains as Stenotrophomonas spp. and one (2.5%) as Luteimonas huabeiensis. MALDI TOF-MS identified 37 (92.5%) strains as S. maltophilia, and three (7.5%) were not identified. PCR targeting 23S rRNA yielded a positive result for 39 (97.5%) strains. However, after sequencing, two strains were identified as Stenotrophomonas rhizophila, showing false-positive results. The confirmed S. maltophilia strains (n = 37) showed 35 distinct ERIC-PCR profiles and exhibited sensitivity to minocycline and levofloxacin, and six (16.3%) showed intermediate resistance to sulfamethoxazole-trimethoprim. CONCLUSION: Matrix-assisted laser desorption lonization-time of flight mass spectrometry (MALDI-TOF MS) was a satisfactory methodology for the identification of S. maltophilia, but expansion of the database is necessary for the identification of other species. 16S rDNA sequencing showed low resolution for Stenotrophomonas species differentiation. PCR targeting 23S rRNA could not differentiate S. maltophilia from S. rhizophila. ERIC-PCR was shown to be a useful tool for the microbial source tracking of S. maltophilia.


Subject(s)
Gram-Negative Bacterial Infections , Stenotrophomonas maltophilia , Humans , Stenotrophomonas maltophilia/genetics , RNA, Ribosomal, 16S/genetics , Trimethoprim, Sulfamethoxazole Drug Combination , Minocycline , Levofloxacin , Gram-Negative Bacterial Infections/microbiology , Anti-Bacterial Agents/pharmacology , Microbial Sensitivity Tests
14.
Lett Appl Microbiol ; 76(9)2023 Sep 01.
Article in English | MEDLINE | ID: mdl-37660241

ABSTRACT

Characterizing microorganisms according to different criteria is useful when investigating sources of microbiological contamination in the pharmaceutical industry. The aim of this study was to characterize 38 Acinetobacter baumannii complex strains isolated from a biopharmaceutical industry by 16S rRNA sequencing, matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF/MS), multilocus sequence typing (MLST), antimicrobial susceptibility profile, biofilm formation, and sensibility to disinfectants. Thirty-three (86.9%) strains were identified by 16S rRNA gene sequencing as A. seifertii/pitti/nosocomialis/lactucae, four (10.5%) as A. baumannii, and one (2.6%) as A. vivianii/courvalini. MALDI-TOF/MS did not identify one strain, and incorrectly identified 30/37 (81.1%) strains as A. baumannii. Strains were assigned to 12 different STs, of which nine were newly defined in this study (STs 2091-2099). Twenty-six (68.4%) strains showed resistance to amikacin and gentamicin. Thirty-three (86.8%) strains were classified as moderately or strongly adherent on polystyrene. Alcohol 70%/15 min and quaternary ammonium 0.08%/20 min were not able to eliminate the biofilm formed, but sodium hypochlorite 0.1%/15 min was efficient. In conclusion, improved methods are needed to improve the identification of Acinetobacter strains in pharmaceutical industries. This organism is of particular concern as it forms recalcitrant biofilms, leading to persistence in the manufacturing environment and increased risk of product contamination.


Subject(s)
Acinetobacter baumannii , Multilocus Sequence Typing , RNA, Ribosomal, 16S/genetics , Acinetobacter baumannii/genetics , Amikacin , Pharmaceutical Preparations
15.
Ecol Evol ; 13(8): e10390, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37529592

ABSTRACT

Mist nets are one of the most widely used techniques in the study of birds and bats worldwide. However, a number of risks are involved, including opportunistic predation. Given this potential cost, here we: (1) review the global literature to understand the factors that might contribute to predation risk for birds and bats captured in mist nets; (2) review existing guidelines for best practice use of mist nets; and (3) based on our reviews, recommend new guidelines for the use of mist nets to minimize the risk of opportunistic predation. Based on keyword in English, Spanish, Portuguese, and French, and using Google Scholar, Scopus, SciElo, and Web of Science, we found 48 articles reporting opportunistic predation. In the included articles, 178 predation events, involving 52 predator and 84 prey species, were reported. In most of the reports, the mist nets were placed at ground level, the bats and birds were preyed on from the shelf closest to the ground, the mist-net checks occurred at intervals of 1 h or 30 min and the most common predators were arboreal and scansorial species (primates and marsupials). Despite the occurrences of predation in 13 countries, guidelines for best practice mist-net use were found in only three, despite extensive searches and contact with key people in each country. Based on the existing guidelines and our results, we recommend that mist nets be fixed with the lowest shelf at least 50 cm above ground level and be checked at 15-min intervals; when predators are observed near mist nets, the nets either be constantly observed, closed, or relocated; suppressed the vegetation around the mist nets; captured animals be removed from the mist nets as soon as possible, and more than one researcher/technician should be in the field at all times.

16.
J Pharm Biomed Anal ; 234: 115531, 2023 Sep 20.
Article in English | MEDLINE | ID: mdl-37354630

ABSTRACT

The identification of filamentous fungi through culture characterization may be hampered by phenotypic variability. Information obtained from the identification of microorganisms are important for investigation of sources of contamination of a product or process. The aim of this study was to identify filamentous fungal strains (n = 50) isolated from a pharmaceutical facility by using Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS), as well as D2 domain of the large-subunit (LSU) ribosomal RNA gene and internal transcribed spacer regions (ITS) sequencing. MALDI-TOF MS system only identified five strains at the species level, while 45 were not identified. The analysis through GenBank allowed the identification of up to 19 strains at the species level, while MycoBank allowed the identification of up to nine strains at the species level. The databases identified up to 11 genera: Penicillium, Aspergillus, Cladosporium, Chaetomium, Coniochaeta, Curvularia, Diaporthe, Fusarium, Trichoderma, Rhizopus and Microdochium. MALDI-TOF MS showed an insufficient database to identify the species of fungi. DNA sequencing was the best methodology to identify to the genus level but was unable to differentiate between closely related species. Therefore further methods for the identification of filamentous fungi from pharmaceutical areas at species level need to be developed.


Subject(s)
Fungi , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods , Fungi/genetics , Sequence Analysis, DNA , Databases, Factual , Pharmaceutical Preparations
17.
Viruses ; 15(6)2023 06 04.
Article in English | MEDLINE | ID: mdl-37376620

ABSTRACT

Brazil is one of the countries that experienced an epidemic of microcephaly and other congenital manifestations related to maternal Zika virus infection which can result in Congenital Zika Syndrome (CZS). Since the Zika virus can modulate the immune system, studying mothers' and children's immune profiles become essential to better understanding CZS development. Therefore, we investigated the lymphocyte population profile of children who developed CZS and their mothers' immune response in this study. The study groups were formed from the Plaque Reduction Neutralization Test (PRNT) (CZS+ group) result. To evaluate the lymphocyte population profile, we performed phenotyping of peripheral lymphocytes and quantification of serum cytokine levels. The immunophenotyping and cytokine profile was correlated between CSZ+ children and their mothers. Both groups exhibited increased interleukin-17 levels and a reduction in the subpopulation of CD4+ T lymphocytes. In contrast, the maternal group showed a reduction in the population of B lymphocytes. Thus, the development of CZS is related to the presence of an inflammatory immune profile in children and their mothers characterized by Th17 activation.


Subject(s)
Microcephaly , Pregnancy Complications, Infectious , Zika Virus Infection , Zika Virus , Pregnancy , Female , Humans , Child , Zika Virus Infection/epidemiology , Pregnancy Complications, Infectious/epidemiology , Mothers , Brazil/epidemiology
18.
Scand J Occup Ther ; 30(7): 970-991, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37134257

ABSTRACT

BACKGROUND: Social occupational therapy developed in Brazil in the late 1970s and early 1980s as a practice approach to the social issues experienced by vulnerable populations. AIM: The aim of this study was to analyse the theoretical-methodological framework which has supported social occupational therapy practices and interventions in Brazil. METHOD: In a scoping review following PRISMA- ScR, the following databases were searched for publications reporting the practices and interventions of social occupational therapy: Scopus, Web of Science, Latin American and Caribbean Literature on Health Sciences (LILACS) and The Cochrane Library. RESULTS: Twenty-six publications met the inclusion criteria. The interventions were aimed at socially vulnerable children and young people at risk of violations of their rights. The studies employed active/participatory pedagogical methodologies which make the participant groups' protagonism central to their learning and intervention process. These approaches are supported by social and human science epistemologies. CONCLUSIONS: Social occupational therapy has inaugurated a paradigm shift by prioritising working with populations in situations of vulnerability arising from socioeconomic, cultural, political and identity issues. This perspective is anchored in theoretical approaches which are strongly linked to collective social actions which arose from the conditions of Brazil's period of military dictatorship. SIGNIFICANCE: At a time when there has been increasing emphasis on addressing marginal groups and widening health inequalities social occupational therapy practice in community development contexts around a focus on vulnerability has been of increasing interest in the wider knowledge sphere of the profession. This article presents a scoping review for anglophone readers.


Subject(s)
Occupational Therapy , Child , Humans , Adolescent , Brazil , Behavior Therapy , Learning
19.
Arch Public Health ; 81(1): 85, 2023 May 10.
Article in English | MEDLINE | ID: mdl-37161420

ABSTRACT

BACKGROUND: Health promotion and disease prevention programme registries (HPPRs), also called 'best practice portals', serve as entry points and practical repositories that provide decision-makers with easy access to (evidence-based) practices. However, there is limited knowledge of differences or overlaps of howe current national HPPRs in Europe function, the context and circumstances in which these HPPRs were developed, and the mechanisms utilised by each HPPR for the assessment, classification and quality improvement of the included practices. This study prepared an overview of different approaches in several national HPPRs and the EU Best Practice Portal (EU BPP) as well as identified commonalities and differences among the core characteristics of the HPPRs. METHODS: We conducted a descriptive comparison - that focused on six European countries with existing or recently developed/implemented national HPPR and the EU BPP -to create a comparative overview. We used coding mechanisms to identify commonalities and differences; we performed data management, collection and building consensus during EuroHealthNet Thematic Working Group meetings. RESULTS: All HPPRs offer a broad range of health promotion and disease-prevention practices and serve to support practitioners, policymakers and researchers in selecting practices. Almost all HPPRs have an assessment process in place or planned, requiring the application of assessment criteria that differ among the HPPRs. While all HPPRs collect and share recommendable practices, others have implemented further measures to improve the quality of the submitted practices. Different dissemination tools and strategies are employed to promote the use of the HPPRs, including social media, newsletters and publications as well as capacity building workshops for practice owners or technical options to connect citizens/patients with local practices. CONCLUSIONS: Collaboration between HPPRs (at national and EU level) is appreciated, especially regarding the use consistent terminology to avoid misinterpretation, facilitate cross-country comparison and enable discussions on the adaption of assessment criteria by national HPPRs. Greater efforts are needed to promote the actual implementation and transfer of practices at the national level to address public health challenges with proven and effective practices.

20.
Lett Appl Microbiol ; 76(5)2023 May 02.
Article in English | MEDLINE | ID: mdl-37120730

ABSTRACT

The pharmaceutical industry must comply with the requirements for good manufacturing practices to reduce inherent contamination risks in the production process. Bacillus and related genera are among the main bacterial isolated from clean areas, raw material, and products in the pharmaceutical industries, but the correct identification of these species is still a challenge. The aim of this study was to characterize by phenotyping, protein profiling, and 16S rRNA gene sequencing Sutcliffiellahorikoshii strains (n = 6) isolated from an immunobiological pharmaceutical facility, and to propose the reclassification of Bacillus tianshenii to the genus Sutcliffiella, and Sutcliffiella tianshenii sp. nov. The strains were characterized by VITEK®2, matrix-assisted laser desorption ionization-time of flight/mass spectrometry (MALDI-TOF/MS) using VITEK®MS, and 16S rRNA gene sequencing analysis. MALDI-TOF/MS did not identify any strains that were identified by 16S rRNA as S. horikoshii. VITEK®2 showed false-positive results, with misidentification as B. sporothermodurans (reclassified as Heyndrickxia sporothermodurans) and Geobacillus thermoleovorans. After MALDI-TOF/MS database expansion, with the creation of SuperSpectrum, the strains were correctly identified as S. horikoshii. This study is the first report of isolation of S. horikoshii strains from a pharmaceutical industry. More studies are necessary to better understand the ability of S. horikoshii to contaminate the environment and products.


Subject(s)
Bacillus , Bacteria , Bacterial Typing Techniques/methods , RNA, Ribosomal, 16S/genetics , Bacillus/genetics , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods
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