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  1. Article ; Online: Cognition and obesity in adults with epilepsy.

    Tedrus, Gloria M A S / Leandro-Merhi, Vania Aparecida / Rebelo, Rafaella Colicigno / da Silva, Bárbara Nunes

    Nutricion hospitalaria

    2023  Volume 40, Issue 5, Page(s) 1033–1040

    Abstract: Introduction: Objective: to assess the occurrence of overweight/obesity in patient with epilepsy (PWEs) and to relate it to cognitive aspects and clinical variables. Methodology: the measurements of waist circumference, calf circumference, arm ... ...

    Title translation Cognición y obesidad en adultos con epilepsia.
    Abstract Introduction: Objective: to assess the occurrence of overweight/obesity in patient with epilepsy (PWEs) and to relate it to cognitive aspects and clinical variables. Methodology: the measurements of waist circumference, calf circumference, arm circumference, and the body mass index were related to the scores of the Mini-Mental State Examination and the Brief Cognitive Battery-Edu, as well as to the clinical variables of 164 PWEs, with a significance level of p < 0.05. Data were compared to a similar control group (CG) comprising 71 cases. Linear and multiple logistic regression models were used to assess factors related to cognitive aspects. Results: the mean age of the PWEs was 49.8 ± 16.6 years with a mean length of epilepsy of 22 ± 15.9 years. Overweight/obesity occurred in 106 (64.6 %) PWEs and in 42 (59.1 %) CG subjects. The PWEs had a worse performance in several cognitive functions when compared to CG subjects. In the PWEs, overweight/obesity was associated with lower educational level, older age, and cognitive impairment. Greater waist circumference, overweight, age at the first seizure, and use of polytherapy with antiseizure medications were predictive factors of memory impairment in multiple linear regression. Greater arm and calf circumference values were associated with better performance in several cognitive areas. Conclusion: the occurrence of overweight/obesity in PWEs and CG subjects was high. Cognitive impairment occurred in a high number of PWEs and was associated with overweight, greater waist circumference values, and clinical aspects of epilepsy. Better cognitive performance was associated with greater arm and calf circumference.
    Language English
    Publishing date 2023-07-05
    Publishing country Spain
    Document type Journal Article
    ZDB-ID 1481223-x
    ISSN 1699-5198 ; 0212-1611
    ISSN (online) 1699-5198
    ISSN 0212-1611
    DOI 10.20960/nh.04421
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Optic nerve activity promotes the growth of optic pathway gliomas: Shedding light on the glioma microenvironment.

    da Silva, Bárbara / Fine, Howard A

    Cancer cell

    2021  Volume 39, Issue 8, Page(s) 1056–1058

    Abstract: In a recent issue of Nature, Pan and colleagues explore whether light-induced stimulation of the optic nerve could influence the biology of optic gliomas. This study highlights the importance of neuronal-glioma interactions. ...

    Abstract In a recent issue of Nature, Pan and colleagues explore whether light-induced stimulation of the optic nerve could influence the biology of optic gliomas. This study highlights the importance of neuronal-glioma interactions.
    MeSH term(s) Humans ; Neurons ; Optic Nerve ; Optic Nerve Glioma/genetics ; Tumor Microenvironment
    Language English
    Publishing date 2021-08-24
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 2078448-X
    ISSN 1878-3686 ; 1535-6108
    ISSN (online) 1878-3686
    ISSN 1535-6108
    DOI 10.1016/j.ccell.2021.07.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: A Comparative Investigation of Axon-Blood Vessel Growth Interaction in the Regenerating Sciatic and Optic Nerves in Adult Mice.

    da Silva, Barbara Rangel / de Melo Reis, Ricardo A / Ribeiro-Resende, Victor Túlio

    Molecular neurobiology

    2023  Volume 61, Issue 4, Page(s) 2215–2227

    Abstract: The vascular and the nervous systems share similarities in addition to their complex role in providing oxygen and nutrients to all cells. Both are highly branched networks that frequently grow close to one another during development. Vascular patterning ... ...

    Abstract The vascular and the nervous systems share similarities in addition to their complex role in providing oxygen and nutrients to all cells. Both are highly branched networks that frequently grow close to one another during development. Vascular patterning and neural wiring share families of guidance cues and receptors. Most recently, this relationship has been investigated in terms of peripheral nervous system (PNS) regeneration, where nerves and blood vessels often run in parallel so endothelial cells guide the formation of the Büngner bands which support axonal regeneration. Here, we characterized the vascular response in regenerative models of the central and peripheral nervous system. After sciatic nerve crush, followed by axon regeneration, there was a significant increase in the blood vessel density 7 days after injury. In addition, the optic nerve crush model was used to evaluate intrinsic regenerative potential activated with a combined treatment that stimulated retinal ganglion cells (RGCs) regrowth. We observed that a 2-fold change in the total number of blood vessels occurred 7 days after optic nerve crush compared to the uncrushed nerve. The difference increased up to a 2.7-fold change 2 weeks after the crush. Interestingly, we did not observe differences in the total number of blood vessels 2 weeks after crush, compared to animals that had received combined treatment for regeneration and controls. Therefore, the vascular characterization showed that the increase in vascular density was not related to the efficiency of both peripheral and central axonal regeneration.
    MeSH term(s) Mice ; Animals ; Axons/physiology ; Nerve Regeneration/physiology ; Endothelial Cells ; Optic Nerve/physiology ; Retinal Ganglion Cells/physiology ; Nerve Crush
    Language English
    Publishing date 2023-10-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 645020-9
    ISSN 1559-1182 ; 0893-7648
    ISSN (online) 1559-1182
    ISSN 0893-7648
    DOI 10.1007/s12035-023-03705-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Plant origin prebiotics affect duodenal brush border membrane functionality and morphology,

    da Silva, Bárbara Pereira / Martino, Hércia Stampini Duarte / Tako, Elad

    Food & function

    2021  Volume 12, Issue 14, Page(s) 6157–6166

    Abstract: The intra-amniotic administration approach has been used to evaluate the effects of plant origin prebiotics on intestinal health and on brush border membrane functionality and morphology. Prebiotics are fermentable dietary fibers, which can positively ... ...

    Abstract The intra-amniotic administration approach has been used to evaluate the effects of plant origin prebiotics on intestinal health and on brush border membrane functionality and morphology. Prebiotics are fermentable dietary fibers, which can positively affect the host by selectively stimulating the growth and activity of colon bacteria, thus improving intestinal health. The consumption of prebiotics increases digestive tract motility, which leads to hyperplasia and/or hypertrophy of intestinal cells, increasing nutrient digestive and absorptive surface area. This review collates information about the effects and relationship between prebiotic consumption on small intestinal brush border membrane functionality and morphology by utilizing the intra-amniotic administration approach. To date, research has shown that the intra-amniotic administration of prebiotics affects the expression of key brush border membrane functional proteins, intestinal surface area (villi height/width), and goblet cell number/size. These effects may improve brush border membrane functionality and digestive/absorptive capabilities.
    MeSH term(s) Animals ; Chickens ; Colon/microbiology ; Dietary Fiber/administration & dosage ; Digestion ; Duodenum/metabolism ; Duodenum/microbiology ; Gastrointestinal Microbiome/drug effects ; Gastrointestinal Motility ; Gastrointestinal Tract/metabolism ; Gastrointestinal Tract/microbiology ; Intestinal Absorption ; Intestinal Mucosa/drug effects ; Intestinal Mucosa/metabolism ; Intestines/microbiology ; Microvilli/drug effects ; Microvilli/metabolism ; Plant Extracts/pharmacology ; Prebiotics/administration & dosage
    Chemical Substances Dietary Fiber ; Plant Extracts ; Prebiotics
    Language English
    Publishing date 2021-06-02
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2612033-1
    ISSN 2042-650X ; 2042-6496
    ISSN (online) 2042-650X
    ISSN 2042-6496
    DOI 10.1039/d1fo01159f
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Regulation of dental consultations in primary health care and performance of services in dental speciality centers.

    da Silva, Bárbara Campos / Buzinaro, Giovana Soares / Cabral, Jhenyffer Andrade Viana / da Cunha, Inara Pereira / de Lacerda, Valéria Rodrigues / Bomfim, Rafael Aiello

    BMC health services research

    2023  Volume 23, Issue 1, Page(s) 609

    Abstract: Objective: This study analyzed the regulation of dental specialty centers (CEOs) coordinated exclusively by Primary Health Care (PHC) in four primary outcomes: access and dental consultation, reception services, bonding and responsibility, and social ... ...

    Abstract Objective: This study analyzed the regulation of dental specialty centers (CEOs) coordinated exclusively by Primary Health Care (PHC) in four primary outcomes: access and dental consultation, reception services, bonding and responsibility, and social participation.
    Methods: A cross-sectional study was carried out using secondary data from the National Program for the Improvement of Access and Quality of Dental Specialty Centers (PMAQ-CEO): second cycle, using multilevel logistic regression to calculate the odds ratio (OR) and individual covariates.
    Results: The analytical sample consisted of 9,599 CEO users who had completed all the variables analyzed. Of these, 63.5% were referred to the CEO by PHC. Dental care regulated by PHC was related to better access (OR 1.36, CI 95% 1.10-1.68), better reception (OR 1.33, CI 95% 1.03-1.71), better bonding and responsibility (OR 1.36, CI 95% 0.91-2.04), and social participation (OR 1.13, CI 95% 0.93-1.35) compared to those not regulated by primary health care as the exclusive pathway.
    Conclusion: The regulation of access to the CEO coordinated by PHC presented the best performance. It is suggested that this form of PHC regulation, as a route for dental specialty centers, can be established in the national oral health care policy for better service performance.
    MeSH term(s) Humans ; Cross-Sectional Studies ; Health Policy ; Primary Health Care ; Referral and Consultation ; Brazil ; Dental Care
    Language English
    Publishing date 2023-06-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2050434-2
    ISSN 1472-6963 ; 1472-6963
    ISSN (online) 1472-6963
    ISSN 1472-6963
    DOI 10.1186/s12913-023-09597-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Microenvironment-Driven Dynamic Chromatin Changes in Glioblastoma Recapitulate Early Neural Development at Single-Cell Resolution.

    Pine, Allison R / Cirigliano, Stefano M / Singhania, Richa / Nicholson, James / da Silva, Bárbara / Leslie, Christina S / Fine, Howard A

    Cancer research

    2023  Volume 83, Issue 10, Page(s) 1581–1595

    Abstract: The tumor microenvironment is necessary for recapitulating the intratumoral heterogeneity and cell state plasticity found in human primary glioblastoma (GBM). Conventional models do not accurately recapitulate the spectrum of GBM cellular states, ... ...

    Abstract The tumor microenvironment is necessary for recapitulating the intratumoral heterogeneity and cell state plasticity found in human primary glioblastoma (GBM). Conventional models do not accurately recapitulate the spectrum of GBM cellular states, hindering elucidation of the underlying transcriptional regulation of these states. Using our glioblastoma cerebral organoid model, we profiled the chromatin accessibility of 28,040 single cells in five patient-derived glioma stem cell lines. Integration of paired epigenomes and transcriptomes within the context of tumor-normal host cell interactions was used to probe the gene-regulatory networks underlying individual GBM cellular states in a way not readily possible in other in vitro models. These analyses identified the epigenetic underpinnings of GBM cellular states and characterized dynamic chromatin changes reminiscent of early neural development that underlie GBM cell state transitions. Despite large differences between tumors, a shared cellular compartment made up of neural progenitor-like cells and outer radial glia-like cells was observed. Together, these results shed light on the transcriptional regulation program in GBM and offer novel therapeutic targets across a broad range of genetically heterogenous GBMs.
    Significance: Single-cell analyses elucidate the chromatin landscape and transcriptional regulation of glioblastoma cellular states and identify a radial glia-like population, providing potential targets to disrupt cell states and improve therapeutic efficacy.
    MeSH term(s) Humans ; Glioblastoma/pathology ; Chromatin/genetics ; Brain Neoplasms/pathology ; Glioma ; Cell Line, Tumor ; Tumor Microenvironment/genetics
    Chemical Substances Chromatin
    Language English
    Publishing date 2023-03-06
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1432-1
    ISSN 1538-7445 ; 0008-5472
    ISSN (online) 1538-7445
    ISSN 0008-5472
    DOI 10.1158/0008-5472.CAN-22-2872
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A bioactive compound digested chia protein is capable of modulating NFκB mediated hepatic inflammation in mice fed a high-fat diet.

    São José, Vinícius Parzanini Brilhante de / Grancieri, Mariana / Toledo, Renata Celi Lopes / Mejia, Elvira Gonzalez de / da Silva, Bárbara Pereira / Martino, Hércia Stampini Duarte

    Food research international (Ottawa, Ont.)

    2023  Volume 175, Page(s) 113740

    Abstract: The consumption of diets high in saturated fat can induce damages in liver morphology and function, which leads to increased inflammation, oxidative stress, and hepatic steatosis. Chia seed (Salvia hispanica L.) is rich in protein, which provides ... ...

    Abstract The consumption of diets high in saturated fat can induce damages in liver morphology and function, which leads to increased inflammation, oxidative stress, and hepatic steatosis. Chia seed (Salvia hispanica L.) is rich in protein, which provides bioactive peptides with potential benefits, including antioxidant and anti-inflammatory functions. Then, this study aimed to analyze the effect of digested total protein (DTP) of chia on inflammation, oxidative stress, and morphological changes in liver of C57BL/6 mice fed a diet rich in saturated fat. Male C57BL/6 mice (n = 8/group), 8 weeks old, were fed standard diet (AIN), high-fat diet (HF), standard diet added digested protein (AIN + DTP) or high-fat diet added digested protein (HF + DTP) for 8 weeks. In animals fed a high-fat diet, chia DTP was able to reduce weight gain, food efficiency ratio and hepatosomatic index. In addition, it presented antioxidant capacity, which reduced catalase activity and lipid peroxidation. DTP was also able to reduce hepatic inflammation by reducing p65-NFκB expression and IL-1β expression and quantification. The APSPPVLGPP peptide present in chia DTP presented binding capacity with PPAR-α, which contributed to the reduction of hepatic fat accumulation evidenced by histological analysis. Thus, chia DTP improved hepatic inflammatory and histological parameters, being an effective food in reducing the liver damage caused by a high-fat diet.
    MeSH term(s) Animals ; Male ; Mice ; Antioxidants/pharmacology ; Diet, High-Fat ; Fatty Acids ; Inflammation ; Mice, Inbred C57BL ; Peptides
    Chemical Substances Antioxidants ; Fatty Acids ; Peptides ; Salvia hispanica seed extract
    Language English
    Publishing date 2023-11-26
    Publishing country Canada
    Document type Journal Article
    ZDB-ID 1111695-x
    ISSN 1873-7145 ; 0963-9969
    ISSN (online) 1873-7145
    ISSN 0963-9969
    DOI 10.1016/j.foodres.2023.113740
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Plant origin prebiotics affect duodenal brush border membrane functionality and morphology, in vivo (Gallus Gallus)

    da Silva, Bárbara Pereira / Martino, Hércia Stampini Duarte / Tako, Elad

    Food & function. 2021 July 20, v. 12, no. 14

    2021  

    Abstract: The intra-amniotic administration approach has been used to evaluate the effects of plant origin prebiotics on intestinal health and on brush border membrane functionality and morphology. Prebiotics are fermentable dietary fibers, which can positively ... ...

    Abstract The intra-amniotic administration approach has been used to evaluate the effects of plant origin prebiotics on intestinal health and on brush border membrane functionality and morphology. Prebiotics are fermentable dietary fibers, which can positively affect the host by selectively stimulating the growth and activity of colon bacteria, thus improving intestinal health. The consumption of prebiotics increases digestive tract motility, which leads to hyperplasia and/or hypertrophy of intestinal cells, increasing nutrient digestive and absorptive surface area. This review collates information about the effects and relationship between prebiotic consumption on small intestinal brush border membrane functionality and morphology by utilizing the intra-amniotic administration approach. To date, research has shown that the intra-amniotic administration of prebiotics affects the expression of key brush border membrane functional proteins, intestinal surface area (villi height/width), and goblet cell number/size. These effects may improve brush border membrane functionality and digestive/absorptive capabilities.
    Keywords Gallus gallus ; colon ; gastrointestinal motility ; hyperplasia ; hypertrophy ; microvilli ; prebiotics ; surface area
    Language English
    Dates of publication 2021-0720
    Size p. 6157-6166.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 2612033-1
    ISSN 2042-650X ; 2042-6496
    ISSN (online) 2042-650X
    ISSN 2042-6496
    DOI 10.1039/d1fo01159f
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Natural and Synthetic Coumarins as Potential Drug Candidates Against SARS-CoV-2/CoViD-19.

    da Silva Santos, Iara / Magalhães, Letícia Oliveira / Marra, Roberta Katlen Fusco / da Silva Lima, Camilo Henrique / Hamerski, Lidilhone / Albuquerque, Magaly Girão / Vasconcellos da Silva, Bárbara

    Current medicinal chemistry

    2024  

    Abstract: COVID-19, an airborne disease caused by a betacoronavirus named SARS-- CoV-2, was officially declared a pandemic in early 2020, resulting in more than 770 million confirmed cases and over 6.9 million deaths by September 2023. Although the introduction of ...

    Abstract COVID-19, an airborne disease caused by a betacoronavirus named SARS-- CoV-2, was officially declared a pandemic in early 2020, resulting in more than 770 million confirmed cases and over 6.9 million deaths by September 2023. Although the introduction of vaccines in late 2020 helped reduce the number of deaths, the global effort to fight COVID-19 is far from over. While significant progress has been made in a short period, the fight against SARS-CoV-2/COVID-19 and other potential pandemic threats continues. Like AIDS and hepatitis C epidemics, controlling the spread of COVID-19 will require the development of multiple drugs to weaken the virus's resistance to different drug treatments. Therefore, it is essential to continue developing new drug candidates derived from natural or synthetic small molecules. Coumarins are a promising drug design and development scaffold due to their synthetic versatility and unique physicochemical properties. Numerous examples reported in scientific literature, mainly by in silico prospection, demonstrate their potential contribution to the rapid development of drugs against SARS-CoV-2/COVID-19 and other emergent and reemergent viruses.
    Language English
    Publishing date 2024-01-11
    Publishing country United Arab Emirates
    Document type Journal Article
    ZDB-ID 1319315-6
    ISSN 1875-533X ; 0929-8673
    ISSN (online) 1875-533X
    ISSN 0929-8673
    DOI 10.2174/0109298673285609231220111556
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: NMR and multivariate methods: Identification of chemical markers in extracts of pedra-ume-caá and their antiglycation, antioxidant, and enzymatic inhibition activities.

    Oliveira, Edinilze S C / Pontes, Flávia L D / Acho, Leonard D R / da Silva, Bárbara Janaína P / do Rosário, Alessandro S / Chaves, Francisco Célio M / Campos, Francinete R / Bezerra, Jaqueline de A / Lima, Emerson S / Machado, Marcos B

    Phytochemical analysis : PCA

    2024  Volume 35, Issue 3, Page(s) 552–566

    Abstract: Introduction: In Brazil, the plant group popularly known as "pedra-ume-caá" is used in folk medicine for the treatment of diabetes, and its raw material is commonly sold.: Objective: The aim of the study was to apply a method for chemical ... ...

    Abstract Introduction: In Brazil, the plant group popularly known as "pedra-ume-caá" is used in folk medicine for the treatment of diabetes, and its raw material is commonly sold.
    Objective: The aim of the study was to apply a method for chemical identification of extracts of dry pedra-ume-caá leaves using HPLC-high-resolution mass spectrometry (HRMS) and NMR and develop a multivariate model with NMR data to authenticate commercial samples. In addition, to evaluate the biological activities of the extracts.
    Materials and methods: Dry extracts of Myrcia multiflora, Myrcia amazonica, Myrcia guianensis, Myrcia sylvatica, Eugenia punicifolia leaves, and 15 commercial samples (sold in Manaus and Belém, Brazil) were prepared by infusion. All the extracts were analysed using HPLC-high-resolution mass spectrometry (HRMS), NMR, principal component analysis (PCA), and hierarchical cluster analysis (HCA). The antidiabetic effect of extracts was evaluated according to enzymatic inhibition. Their content of total phenols, cell viability, and antioxidant and antiglycation activities were also determined.
    Results: HPLC-HRMS and NMR analysis of these extracts permitted the identification of 17 compounds.
    Conclusion: This study revealed the chemical markers of matrices, and it was possible to differentiate the materials marketed as pedra-ume-caá. Moreover, this study corroborates the potential of these species for treating diabetes.
    MeSH term(s) Antioxidants/chemistry ; Plant Extracts/chemistry ; Myrtaceae/chemistry ; Magnetic Resonance Spectroscopy ; Diabetes Mellitus ; Plant Leaves/chemistry
    Chemical Substances Antioxidants ; Plant Extracts
    Language English
    Publishing date 2024-01-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 1073576-8
    ISSN 1099-1565 ; 0958-0344
    ISSN (online) 1099-1565
    ISSN 0958-0344
    DOI 10.1002/pca.3312
    Database MEDical Literature Analysis and Retrieval System OnLINE

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