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  1. Article ; Online: Comment on "Are family meals and social eating behaviour associated with depression, anxiety, and stress in adolescents?" Clinical nutrition 2023.

    Ramos, Tiago Lacerda / Fernanda Dos Santos, Leila / Santos de Sousa Fernandes, Matheus

    Clinical nutrition (Edinburgh, Scotland)

    2023  Volume 42, Issue 7, Page(s) 1233–1234

    MeSH term(s) Humans ; Adolescent ; Depression/epidemiology ; Feeding Behavior ; Anxiety ; Anxiety Disorders ; Meals
    Language English
    Publishing date 2023-04-17
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 604812-2
    ISSN 1532-1983 ; 0261-5614
    ISSN (online) 1532-1983
    ISSN 0261-5614
    DOI 10.1016/j.clnu.2023.04.015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Comment on "inflammatory potential of diet and risk of mortality in normal-weight adults with central obesity" clinical nutrition 2022.

    da Silva Fidellis, Débora Eduarda / Dos Santos, Leila Fernanda / Pereira, Erika Vitória Moura / de Sousa Fernandes, Matheus Santos / de Souza, Raphael Fabricio

    Clinical nutrition (Edinburgh, Scotland)

    2023  Volume 42, Issue 7, Page(s) 1245–1246

    MeSH term(s) Adult ; Humans ; Obesity, Abdominal ; Obesity/epidemiology ; Diet
    Language English
    Publishing date 2023-02-21
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 604812-2
    ISSN 1532-1983 ; 0261-5614
    ISSN (online) 1532-1983
    ISSN 0261-5614
    DOI 10.1016/j.clnu.2023.02.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Ferroptosis: Cancer Stem Cells Rely on Iron until "to Die for" It.

    Cosialls, Emma / El Hage, Rima / Dos Santos, Leïla / Gong, Chang / Mehrpour, Maryam / Hamaï, Ahmed

    Cells

    2021  Volume 10, Issue 11

    Abstract: Cancer stem cells (CSCs) are a distinct subpopulation of tumor cells with stem cell-like features. Able to initiate and sustain tumor growth and mostly resistant to anti-cancer therapies, they are thought responsible for tumor recurrence and metastasis. ... ...

    Abstract Cancer stem cells (CSCs) are a distinct subpopulation of tumor cells with stem cell-like features. Able to initiate and sustain tumor growth and mostly resistant to anti-cancer therapies, they are thought responsible for tumor recurrence and metastasis. Recent accumulated evidence supports that iron metabolism with the recent discovery of ferroptosis constitutes a promising new lead in the field of anti-CSC therapeutic strategies. Indeed, iron uptake, efflux, storage and regulation pathways are all over-engaged in the tumor microenvironment suggesting that the reprogramming of iron metabolism is a crucial occurrence in tumor cell survival. In particular, recent studies have highlighted the importance of iron metabolism in the maintenance of CSCs. Furthermore, the high concentration of iron found in CSCs, as compared to non-CSCs, underlines their iron addiction. In line with this, if iron is an essential macronutrient that is nevertheless highly reactive, it represents their Achilles' heel by inducing ferroptosis cell death and therefore providing opportunities to target CSCs. In this review, we first summarize our current understanding of iron metabolism and its regulation in CSCs. Then, we provide an overview of the current knowledge of ferroptosis and discuss the role of autophagy in the (regulation of) ferroptotic pathways. Finally, we discuss the potential therapeutic strategies that could be used for inducing ferroptosis in CSCs to treat cancer.
    MeSH term(s) Animals ; Autophagy ; Ferroptosis ; Humans ; Iron/metabolism ; Models, Biological ; Molecular Targeted Therapy ; Neoplastic Stem Cells/pathology
    Chemical Substances Iron (E1UOL152H7)
    Language English
    Publishing date 2021-11-02
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells10112981
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Research of Rickettsia spp. and Borrelia spp. in dogs in Southeast Brazil.

    Gonçalves, Elaine Santana / Cordeiro, Matheus Dias / Dos Santos, Leila Maria Rosa / Araújo, Izabela Mesquita / da Fonseca, Adivaldo Henrique / Labruna, Marcelo Bahia / Guedes, Elizângela

    Veterinary parasitology, regional studies and reports

    2022  Volume 30, Page(s) 100706

    Abstract: Dogs are important in the epidemiology of tick-borne diseases, playing a significant role mainly in endemic areas of rickettsiosis and borreliosis, and serving as sentinels in epidemiological surveys. We analyzed the distribution of Rickettsia and ... ...

    Abstract Dogs are important in the epidemiology of tick-borne diseases, playing a significant role mainly in endemic areas of rickettsiosis and borreliosis, and serving as sentinels in epidemiological surveys. We analyzed the distribution of Rickettsia and Borrelia spp. in dogs and their ticks in the municipalities of Guaxupé, Minas Gerais, and Tapiratiba, São Paulo, Brazil, two areas non-endemic for Baggio-Yoshinari Syndrome (BYS) and rickettsiosis. Serum from 242 dogs of different ages (>12 months) and breeds were tested by the Indirect Immunofluorescence Assay (IFA) using specific antigens for Rickettsia rickettsii, Rickettsia parkeri, Rickettsia amblyommatis, Rickettsia rhipicephali, and Rickettsia bellii, and by an indirect Enzyme Linked Immunosorbent Assay (ELISA) for the detection of homologous IgG antibodies against Borrelia burgdorferi American strain G39/40. Ticks were collected from the animals and subjected to PCR and nested PCR for detection of Rickettsia spp. (synthase citrate gene) and Borrelia spp. (flagellin gene). Serological data showed that 7.85% (19/242) of the analyzed dogs were seropositive for at least one of the five Rickettsia antigens tested; one (0.41%) was considered seropositive for R. parkeri (1:64) and one (0.41%) for R. rickettsii (1:256). Nine (3.72%) were considered seropositive for R. bellii and one (0.41%) for R. amblyommatis; a seroprevalence of 13.64% (33/242) for IgG class immunoreactive antibodies against B. burgdorferi was observed. A total of 148 ticks were collected from the dogs; among these 3.40% were identified as larvae of the genus Rhipicephalus and 0.70% of the genus Amblyomma; 89.8% were identified as Rhipicephalus sanguineus, 4.70% Amblyomma sculptum and 1.40% Amblyomma ovale; all negative for PCR of Rickettsia spp. and nested PCR for Borrelia spp.. The serological findings of this study suggest the circulation of Rickettsiae associated with the spotted fever group and vector ticks, just like Borrelia spp. in a non-endemic Brazilian area, drawing attention to the possibility of a zoonotic cycle in the region.
    MeSH term(s) Amblyomma ; Animals ; Borrelia ; Brazil/epidemiology ; Dog Diseases/microbiology ; Dogs ; Immunoglobulin G ; Rhipicephalus sanguineus ; Rickettsia/genetics ; Rickettsia Infections/epidemiology ; Rickettsia Infections/microbiology ; Rickettsia Infections/veterinary ; Seroepidemiologic Studies
    Chemical Substances Immunoglobulin G
    Language English
    Publishing date 2022-02-16
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2405-9390
    ISSN (online) 2405-9390
    DOI 10.1016/j.vprsr.2022.100706
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Research of Rickettsia spp. and Borrelia spp. in dogs in Southeast Brazil

    Gonçalves, Elaine Santana / Cordeiro, Matheus Dias / dos Santos, Leila Maria Rosa / Araújo, Izabela Mesquita / da Fonseca, Adivaldo Henrique / Labruna, Marcelo Bahia / Guedes, Elizângela

    Veterinary Parasitology: Regional Studies and Reports. 2022 May, v. 30

    2022  

    Abstract: Dogs are important in the epidemiology of tick-borne diseases, playing a significant role mainly in endemic areas of rickettsiosis and borreliosis, and serving as sentinels in epidemiological surveys. We analyzed the distribution of Rickettsia and ... ...

    Abstract Dogs are important in the epidemiology of tick-borne diseases, playing a significant role mainly in endemic areas of rickettsiosis and borreliosis, and serving as sentinels in epidemiological surveys. We analyzed the distribution of Rickettsia and Borrelia spp. in dogs and their ticks in the municipalities of Guaxupé, Minas Gerais, and Tapiratiba, São Paulo, Brazil, two areas non-endemic for Baggio-Yoshinari Syndrome (BYS) and rickettsiosis. Serum from 242 dogs of different ages (>12 months) and breeds were tested by the Indirect Immunofluorescence Assay (IFA) using specific antigens for Rickettsia rickettsii, Rickettsia parkeri, Rickettsia amblyommatis, Rickettsia rhipicephali, and Rickettsia bellii, and by an indirect Enzyme Linked Immunosorbent Assay (ELISA) for the detection of homologous IgG antibodies against Borrelia burgdorferi American strain G39/40. Ticks were collected from the animals and subjected to PCR and nested PCR for detection of Rickettsia spp. (synthase citrate gene) and Borrelia spp. (flagellin gene). Serological data showed that 7.85% (19/242) of the analyzed dogs were seropositive for at least one of the five Rickettsia antigens tested; one (0.41%) was considered seropositive for R. parkeri (1:64) and one (0.41%) for R. rickettsii (1:256). Nine (3.72%) were considered seropositive for R. bellii and one (0.41%) for R. amblyommatis; a seroprevalence of 13.64% (33/242) for IgG class immunoreactive antibodies against B. burgdorferi was observed. A total of 148 ticks were collected from the dogs; among these 3.40% were identified as larvae of the genus Rhipicephalus and 0.70% of the genus Amblyomma; 89.8% were identified as Rhipicephalus sanguineus, 4.70% Amblyomma sculptum and 1.40% Amblyomma ovale; all negative for PCR of Rickettsia spp. and nested PCR for Borrelia spp.. The serological findings of this study suggest the circulation of Rickettsiae associated with the spotted fever group and vector ticks, just like Borrelia spp. in a non-endemic Brazilian area, drawing attention to the possibility of a zoonotic cycle in the region.
    Keywords Amblyomma sculptum ; Borrelia burgdorferi ; Lyme disease ; Rhipicephalus sanguineus ; Rickettsia bellii ; Rickettsia parkeri ; Rickettsia rhipicephali ; Rickettsia rickettsii ; blood serum ; citrates ; enzymes ; fever ; flagellin ; fluorescent antibody technique ; genes ; rickettsial diseases ; seroprevalence ; veterinary parasitology ; Brazil
    Language English
    Dates of publication 2022-05
    Publishing place Elsevier B.V.
    Document type Article
    ISSN 2405-9390
    DOI 10.1016/j.vprsr.2022.100706
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Does the sequence of plyometric and dynamic stretching exercises influence subsequent sprint performance? A randomized crossover intervention study.

    Silva, Devisson S / Boullosa, Daniel / Pereira, Erika V M / Alves, Micael D J / Fernandes, Matheus S S / Aidar, Felipe J / Dos Santos, Leila F / de Souza, Raphael F

    Biology of sport

    2023  Volume 41, Issue 2, Page(s) 13–18

    Abstract: The objectives of this study were to evaluate the acute effects of the sequence order of drop jumps (DJ) and dynamic stretching (DS) on sprinting performances in competitive athletes and to investigate the relationships between post-activation ... ...

    Abstract The objectives of this study were to evaluate the acute effects of the sequence order of drop jumps (DJ) and dynamic stretching (DS) on sprinting performances in competitive athletes and to investigate the relationships between post-activation performance enhancement (PAPE) in sprint performance and lower limb power. Thirteen male jumpers and sprinters participated in this study (19 ± 2 years; 177 ± 7 cm; 71.7 ± 5.6 kg). Through a randomized crossover design, the athletes were exposed to three different conditions after a standardized warm-up: DS+DJ, DJ+DS, and control. Sprinting performance over 40 m was analysed with consideration of initial (0 to 20 m) and final acceleration (20 to 40 m) phases. The effect of intervention was examined by two-way repeated-measures of ANOVA. Pearson's correlation test was used to determine the association between PAPE during sprinting and jump performance. There was no effect of any factor on 40-m sprint performance. Meanwhile, the performance at 20-40 m was higher after the DS+DJ condition when compared to baseline (8.79 ± 0.43 vs. 8.91 ± 0.35 m/s; p = 0.015). However, the initial acceleration was worsened in the DJ+DS condition when compared to baseline (6.26 ± 0.25 vs. 6.22 ± 0.26 m/s; p = 0.002). There was a negative correlation between CMJ height and the improvement in final acceleration (r = -0.741; p = 0.004). The use of DS prior to DJ is an effective strategy to improve performance in the final acceleration phase (20-40 m). The athletes with lower levels of lower limb power benefited the most from this PAPE strategy.
    Language English
    Publishing date 2023-09-21
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 639281-7
    ISSN 0860-021X
    ISSN 0860-021X
    DOI 10.5114/biolsport.2024.129485
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A promising new approach to cancer therapy: Targeting iron metabolism in cancer stem cells.

    El Hout, Mouradi / Dos Santos, Leïla / Hamaï, Ahmed / Mehrpour, Maryam

    Seminars in cancer biology

    2018  Volume 53, Page(s) 125–138

    Abstract: Iron is an essential nutrient that facilitates cell proliferation and growth. Iron can be detrimental, however. The ability of iron to cycle between oxidized and reduced forms contributes to the formation of free radicals. An excess of free radicals ... ...

    Abstract Iron is an essential nutrient that facilitates cell proliferation and growth. Iron can be detrimental, however. The ability of iron to cycle between oxidized and reduced forms contributes to the formation of free radicals. An excess of free radicals leads to lipid peroxidation, more reactive oxygen species and oxidative stress, damage to DNA and other biomolecules, and, if potentially, tumorigenesis. Iron also has a role in the maintenance of the tumor microenvironment and in metastasis. Pathways of iron acquisition, efflux, storage, and regulation are all perturbed in cancer, suggesting that reprogramming of iron metabolism is a central aspect of tumor cell survival. Recent studies have shed light on the role of iron metabolism in cancer stem cells (CSC) and suggest that specific targeting of iron metabolism in CSCs may improve the efficacy of cancer therapy. In this review, we first summarize briefly our current understanding of the intracellular processes involving iron, the effect of dietary iron, and its relation to cancer. We emphasize the importance of modifier "iron genes" in cancer and the possibility that these genes may encode biomarkers that may be used clinically. We then provide an update on the role of iron in metabolic reprogramming, the epithelial-mesenchymal transition, and the regulation of epigenetic marks essential for CSC maintenance and plasticity. Finally, we discuss the potential of targeting a recently discovered form of iron-regulated cell death, ferroptosis, in CSCs for treatment of cancer.
    MeSH term(s) Animals ; Antineoplastic Agents/therapeutic use ; Cell Death/drug effects ; Gene Expression Regulation, Neoplastic/drug effects ; Homeostasis/drug effects ; Homeostasis/genetics ; Homeostasis/physiology ; Humans ; Iron/metabolism ; Iron Chelating Agents/therapeutic use ; Neoplasms/drug therapy ; Neoplasms/genetics ; Neoplasms/metabolism ; Neoplastic Stem Cells/drug effects ; Neoplastic Stem Cells/metabolism
    Chemical Substances Antineoplastic Agents ; Iron Chelating Agents ; Iron (E1UOL152H7)
    Language English
    Publishing date 2018-07-30
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1033980-2
    ISSN 1096-3650 ; 1044-579X
    ISSN (online) 1096-3650
    ISSN 1044-579X
    DOI 10.1016/j.semcancer.2018.07.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Author Correction: Post-activation performance enhancement effect of drop jump on long jump performance during competition.

    Dos Santos Silva, Devisson / Boullosa, Daniel / Moura Pereira, Erika Vitoria / de Jesus Alves, Micael Deivison / de Sousa Fernandes, Matheus Santos / Badicu, Georgian / Yagin, Fatma Hilal / Aidar, Felipe J / Dos Santos, Leila Fernanda / do Nascimento, Hortencia Reis / Ardigò, Luca Paolo / de Souza, Raphael Fabricio

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 19333

    Language English
    Publishing date 2023-11-07
    Publishing country England
    Document type Published Erratum
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-46708-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Post-activation performance enhancement effect of drop jump on long jump performance during competition.

    Dos Santos Silva, Devisson / Boullosa, Daniel / Moura Pereira, Erika Vitoria / de Jesus Alves, Micael Deivison / de Sousa Fernandes, Matheus Santos / Badicu, Georgian / Yagin, Fatma Hilal / Aidar, Felipe J / Dos Santos, Leila Fernanda / do Nascimento, Hortencia Reis / Ardigò, Luca Paolo / de Souza, Raphael Fabricio

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 16993

    Abstract: Drop jump is widely used in training sessions, aiming for chronic effects on long jump performance. However, the acute effect of drop jump on long jump performance through its use as a Conditioning Activity (CA) has not been explored. The objective of ... ...

    Abstract Drop jump is widely used in training sessions, aiming for chronic effects on long jump performance. However, the acute effect of drop jump on long jump performance through its use as a Conditioning Activity (CA) has not been explored. The objective of this study was to verify the Post-activation Performance Enhancement (PAPE) responses induced by successive Drop Jumps (DJ) on competitive long jump performance. Eleven male jumpers (19.0 ± 2.0 years; 178.0 ± 9.0 cm; 73.1 ± 8.9 kg; and personal record 5.78 ± 0.44 m) volunteered for participation. The athletes performed 5 drop jumps 2 min (1'45-2'15 min) before the second, and fourth attempt during official competition of state level, the attempts without the use of CA were considered controls. The performance of the second (5.63 ± 0.43 m), third (5.65 ± 0.46, g = 0.24) and fourth (5.71 ± 0.34 m) jumps performed after activation were higher than the first (5.54 ± 0.45 m) in the control condition, p = 0.02, and p = 0.01 respectively. Differences were also found in the take-off vertical velocity of the jump between the fourth (1.55 ± 0.21) and the first jump (1.30 ± 0.40), p = 0.006. Jump performance showed positive correlation with approach velocity, r = 0.731, vertical take-off velocity, r = 0.412, and take-off duration, r = 0.508. The mean performance in jumping post-activation (5.67 ± 0.38 m) was higher than that without the use of previous CA (5.59 ± 0.44 m), p = 0.02, g = 0.19. The use of DJs as a CA prior to the long jump promotes improvements in the performance of the jump, which can be explained by the increase in the take-off vertical velocity in the athletes.
    MeSH term(s) Humans ; Male ; Athletic Performance/physiology ; Biomechanical Phenomena ; Athletes
    Language English
    Publishing date 2023-10-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-44075-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Acute effects of transcranial direct current stimulation (tDCS) on peak torque and 5000 m running performance: a randomized controlled trial.

    Dos Santos, Leila Fernanda / Dos Santos Silva, Devisson / de Jesus Alves, Micael Deivison / Moura Pereira, Erika Vitoria / do Nascimento, Hortência Reis / de Sousa Fernandes, Matheus Santos / de Freitas Zanona, Aristela / Knechtle, Beat / Weiss, Katja / Aidar, Felipe J / de Souza, Raphael Fabricio

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 9362

    Abstract: The benefits of transcranial direct current stimulation (tDCS) on brain function, cognitive response, and motor ability are well described in scientific literature. Nevertheless, the effects of tDCS on athletes' performance remain unclear. To compare the ...

    Abstract The benefits of transcranial direct current stimulation (tDCS) on brain function, cognitive response, and motor ability are well described in scientific literature. Nevertheless, the effects of tDCS on athletes' performance remain unclear. To compare the acute effects of tDCS on the running performance of 5000 m (m) runners. Eighteen athletes were randomized into Anodal (n = 9) groups that received tDCS for 20 min and 2 mA, and Sham (n = 9), in the motor cortex region (M1). Running time in 5000 m, speed, perceived exertion (RPE), internal load and peak torque (Pt) were evaluated. The Shapiro-Wilk test followed by a paired Student's t-test was used to compare Pt and total time to complete the run between the groups. The running time and speed of the Anodal group (p = 0.02; 95% CI 0.11-2.32; d = 1.24) was lower than the Sham group (p = 0.02, 95% CI 0.05-2.20; d = 1.15). However, no difference was found in Pt (p = 0.70; 95% CI - 0.75 to 1.11; d = 0.18), RPE (p = 0.23; 95% CI - 1.55 to 0.39; d = 0.60) and internal charge (p = 0.73; 95% CI - 0.77 to 1.09; d = 0.17). Our data indicate that tDCS can acutely optimize the time and speed of 5000 m runners. However, no alterations were found for Pt and RPE.
    MeSH term(s) Humans ; Transcranial Direct Current Stimulation ; Torque ; Athletic Performance ; Psychomotor Performance/physiology ; Motor Cortex/physiology
    Language English
    Publishing date 2023-06-08
    Publishing country England
    Document type Randomized Controlled Trial ; Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-36093-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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