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  1. Article ; Online: Influence of the BsmI polymorphism of the vitamin D receptor gene on the levels of vitamin D, inflammatory and oxidative stress profile in patients with cystic fibrosis supplemented with Colecalciferol megadose.

    Queiroz, Dayanna Joyce Marques / Silva, Alexandre Sérgio / da Silva Júnior, Celso Costa / Paiva, Maria Paula / Assis, Caroline Severo de / Persuhn, Darlene Camati / Diniz, Alcides da Silva / Lima, Rafaela Lira Formiga Cavalcanti de / Cartaxo, Constantino Giovanni Braga / Bezerra, Patricia Gomes de Matos / Ribeiro, Mateus Duarte / de Brito Alves, José Luiz / Gonçalves, Maria da Conceição Rodrigues

    Clinical nutrition ESPEN

    2024  Volume 60, Page(s) 139–145

    Abstract: Objective: Evaluate the influence of the BsmI polymorphism of the vitamin D receptor gene on vitamin D levels, and inflammatory and oxidative stress markers in patients with Cystic Fibrosis supplemented with cholecalciferol megadose.: Methods: We ... ...

    Abstract Objective: Evaluate the influence of the BsmI polymorphism of the vitamin D receptor gene on vitamin D levels, and inflammatory and oxidative stress markers in patients with Cystic Fibrosis supplemented with cholecalciferol megadose.
    Methods: We performed a single-arm, non-randomized pre- and post-study of 17 patients aged 5 to 20 years with cystic fibrosis diagnosed with vitamin D insufficiency/deficiency 25-hydroxy vitamin< 30 ng/mL. Individuals were genotyped for the BsmI polymorphism of the vitamin D receptor gene and all received cholecalciferol supplementation of 4,000 IU daily for children aged 5 to 10 years and 10,000 IU for children over 10 years of age for 8 weeks. Interviews were conducted with personal data, sun exposure, anthropometric and blood samples of 25-hydroxy vitamin parathormone, serum calcium, ultrasensitive C-reactive protein, alpha 1 acid glycoprotein, total antioxidant capacity, malondialdehyde and kidney and liver function. Inter- and intra-group assessment was assessed by paired t-test Anova test or its non-parametric counterparts.
    Results: The individuals were mostly male and reported no adverse effects from the use of supplementation, 64 % had 25-hydroxy vitamin levels >30 ng/mL. Patients with BB and Bb genotypes showed increased serum levels of 25-hydroxy vitamin. The group with BB genotype showed a reduction in alpha 1 acid glycoprotein. And individuals with the bb genotype had high levels of malondialdehyde compared to the pre-intervention time.
    Conclusion: It is concluded that variations of the BsmI polymorphism of the vitamin D receptor gene have different responses in vitamin D levels and markers of inflammation and oxidative stress.
    MeSH term(s) Child ; Female ; Humans ; Male ; Cholecalciferol ; Cystic Fibrosis/genetics ; Dietary Supplements ; Malondialdehyde ; Orosomucoid/metabolism ; Oxidative Stress ; Receptors, Calcitriol/genetics ; Receptors, Calcitriol/metabolism ; Vitamin D ; Vitamin D Deficiency/genetics ; Vitamins ; Child, Preschool ; Adolescent ; Young Adult
    Chemical Substances Cholecalciferol (1C6V77QF41) ; Malondialdehyde (4Y8F71G49Q) ; Orosomucoid ; Receptors, Calcitriol ; Vitamin D (1406-16-2) ; Vitamins
    Language English
    Publishing date 2024-01-17
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2405-4577
    ISSN (online) 2405-4577
    DOI 10.1016/j.clnesp.2024.01.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Highlights of three metabolites HDL and reduction in blood pressure values after dietary fiber supplementation in overweight and obese normotensive women: a metabolomic study.

    da Silva, Cássia Surama Oliveira / Monteiro, Mussara Gomes Cavalcanti Alves / Fechine, Carla Patricia Novaes Dos Santos / Tavares, Josean Fechine / Souto, Augusto Lopes / Luna, Rafaella Cristhine Pordeus / Pimenta, Flávia Cristina Fernandes / E Silva, Ana Herminia Andrade / da Silva Diniz, Alcides / da Silva Júnior, Celso Costa / Alverga, Caio César Ferreira / Dos Santos, Sócrates Golzio / Persuhn, Darlene Camati / de Carvalho Costa, Maria José

    Metabolomics : Official journal of the Metabolomic Society

    2023  Volume 19, Issue 12, Page(s) 95

    Abstract: Introduction: The prevalence of hypertension and obesity are a worldwide concern.: Objetives: Assess the metabolites profile after intervention with mixed dietary fiber in overweight and obese normotensive women.: Methods: This is a randomized ... ...

    Abstract Introduction: The prevalence of hypertension and obesity are a worldwide concern.
    Objetives: Assess the metabolites profile after intervention with mixed dietary fiber in overweight and obese normotensive women.
    Methods: This is a randomized double blind placebo-controlled study. Through a simple randomization process, two groups were allocated, with eleven women (group 1) receiving 12 g of mixed dietary fiber and thirteen women (group 2) receiving 12 g of placebo (corn starch) for eight weeks. Anthropometric and biochemical tests and lifestyle were analyzed. As for evaluation metabolomics, used a
    Results: After the intervention with mixed dietary fiber, significant differences were observed between the main types of metabolites, referring to the increase in the relative peak areas of in three HDL metabolites 4.94 ppm (0.0086*), HDL 1.28 ppm (0 .0337*), HDL 0.88 ppm (0.0224*) and an α-glucose metabolite 4.90 ppm (0.0106) and the reduction in systolic blood pressure (SBP) (0.0292*) of 7 mmHg in the reference range and in the placebo group there was a reduction in SBP (0.0118*) of 4 mmHg and of a choline metabolite 3.65 ppm (0.0266*), which does not call into question the validity of these results in the literature.
    Conclusion: The synergism of the functions of these statistically highlighted metabolites contributed to prevention the increase in SBP after fiber intervention in overweight and obese normotensive women.
    MeSH term(s) Humans ; Female ; Overweight/drug therapy ; Blood Pressure ; Metabolomics/methods ; Obesity ; Dietary Supplements
    Language English
    Publishing date 2023-11-17
    Publishing country United States
    Document type Randomized Controlled Trial ; Journal Article
    ZDB-ID 2250617-2
    ISSN 1573-3890 ; 1573-3882
    ISSN (online) 1573-3890
    ISSN 1573-3882
    DOI 10.1007/s11306-023-02057-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Relationship of the Pro12Ala Polymorphism on the PPARy2 Gene With the Body Composition of Practitioners of Cyclic Exercises.

    da Silva, Raquel Suelen Brito / Persuhn, Darlene Camati / Barbosa, Francisca Karinny Lemos / de Souza, Marizângela Ferreira / Sena, Klécia de Farias / Costa, Matheus da Silveira / Franca, Gisele Augusta Maciel / de Assis, Caroline Severo / Cardoso, Glêbia Alexa / Silva, Alexandre Sérgio

    Frontiers in physiology

    2021  Volume 11, Page(s) 633721

    Abstract: This study aimed to verify the association between the genotypic of the receptor gene activated by peroxisome proliferators gamma 2 (PPARy2) and the body composition and the specific indicators of adiposity in practitioners physical exercises, ... ...

    Abstract This study aimed to verify the association between the genotypic of the receptor gene activated by peroxisome proliferators gamma 2 (PPARy2) and the body composition and the specific indicators of adiposity in practitioners physical exercises, considering nutritional intake, age, and training load as influencing factors. It was conducted a cross-sectional study with 335 adults (47.9 ± 12.7 years, 138 men, body mass index/BMI = 27.0 ± 4.9 kg/m
    Language English
    Publishing date 2021-01-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2564217-0
    ISSN 1664-042X
    ISSN 1664-042X
    DOI 10.3389/fphys.2020.633721
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: HIDRELÉTRICA DE BELO MONTE

    José Antônio Herrera / Nathany Melo Machado Arcanjo / Darlene Costa da Silva

    Nova Revista Amazônica, Vol 7, Iss 3, Pp 49-

    DINÂMICA SOCIOESPACIAL DAS FAMÍLIAS NO RRC TRAVESSÃO 27 KM, VITÓRIA DO XINGU-PA

    2019  Volume 63

    Abstract: Neste artigo apresentam-se as dinâmicas socioespaciais das famílias do Reassentamento Rural Coletivo (RRC) localizado no km 27 da BR 230 em Vitória do Xingu-PA. O mote está em discutir como os reassentados se organizam neste novo espaço agrário gerado ... ...

    Abstract Neste artigo apresentam-se as dinâmicas socioespaciais das famílias do Reassentamento Rural Coletivo (RRC) localizado no km 27 da BR 230 em Vitória do Xingu-PA. O mote está em discutir como os reassentados se organizam neste novo espaço agrário gerado pelo deslocamento compulsório das famílias diretamente impactadas com a construção da Usina Hidrelétrica de Belo Monte – UHBM. Partindo desta constatação, apresentou-se como resultado da pesquisa a necessidade de analisar a dinâmica socioespacial das famílias reassentadas do RRC que se dá de forma diversificada e oposta, para tal análise foram utilizados dados coletados em campo por meio de entrevistas com as famílias do RRC.
    Keywords General Works ; A ; Anthropology ; GN1-890 ; Social sciences (General) ; H1-99
    Language Portuguese
    Publishing date 2019-12-01T00:00:00Z
    Publisher Universidade Federal do Pará (UFPA)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Vitamin D levels and their association with oxidative stress and inflammation markers in patients with cystic fibrosis.

    Queiroz, Dayana Joyce Marques / Silva, Alexandre Sérgio / Silva Júnior, Celso Costa da / Persuhn, Darlene Camati / Diniz, Alcides da Silva / Lima, Rafaela Lira Formiga Cavalcanti de / Paiva, Maria Paula de / Cartaxo, Constantino Giovanni Braga / Bezerra, Patricia Gomes de Matos / Duarte Ribeiro, Mateus / Gonçalves, Maria da Conceição Rodrigues

    Nutricion hospitalaria

    2023  Volume 40, Issue 2, Page(s) 280–285

    Abstract: Introduction: Introduction: cystic fibrosis is a disease that causes inflammation, oxidative stress and metabolic changes that lead to nutrient deficiency, such as vitamin D deficiency. On the other hand, it is suggested that vitamin D has anti- ... ...

    Title translation Niveles de vitamina D y su asociación con marcadores de estrés oxidativo e inflamatorios en pacientes con fibrosis quística.
    Abstract Introduction: Introduction: cystic fibrosis is a disease that causes inflammation, oxidative stress and metabolic changes that lead to nutrient deficiency, such as vitamin D deficiency. On the other hand, it is suggested that vitamin D has anti-inflammatory and antioxidant actions. Objective: to evaluate the prevalence of hypovitaminosis D and the association between serum 25 hydroxyvitamin D levels with markers of oxidative stress and inflammation in patients with cystic fibrosis. Method: a cross-sectional study was carried out with 48 patients with cystic fibrosis including children, adolescents and adults in the northeast region of Brazil. Blood collection was performed for analysis of 25-hydroxyvitamin D, calcium, parathyroid hormone, inflammatory process (C-reactive protein (CRP) and alpha-1-acid glycoprotein-A1 (A1GPA)) and oxidative stress (malondialdehyde (MDA) and total antioxidant capacity (CAOT)). The statistical analysis was performed using the "Statistical Package for the Social Sciences", adopting a significance level of p < 0.05. Results: Vitamin D insufficiency/deficiency was found in 64.6 % of patients. After multiple linear regression analysis, MDA showed an inverse association with blood values of 25-Hydroxyvitamin D (p < 0.05) conditioned by the presence of inflammatory process markers. When only oxidative stress was evaluated, this association disappeared. Conclusion: in conclusion, there was a high prevalence of hypovitaminosis D, with 25(OH)D levels associated with greater oxidative stress when combined with inflammatory markers. Improved vitamin D levels may be an alternative to reduce the damage caused by excess oxidative stress and inflammation in CF patients.
    MeSH term(s) Vitamin D/blood ; Vitamin D/metabolism ; Oxidative Stress ; Inflammation/complications ; Cystic Fibrosis/complications ; Cystic Fibrosis/metabolism ; Prevalence ; Vitamin D Deficiency/complications ; Vitamin D Deficiency/epidemiology ; Brazil/epidemiology ; Biomarkers ; Cross-Sectional Studies ; Humans ; Female ; Child ; Adolescent ; Adult
    Chemical Substances Vitamin D (1406-16-2) ; Biomarkers ; 25-hydroxyvitamin D (A288AR3C9H)
    Language English
    Publishing date 2023-02-14
    Publishing country Spain
    Document type Evaluation Study ; Journal Article
    ZDB-ID 1481223-x
    ISSN 1699-5198 ; 0212-1611
    ISSN (online) 1699-5198
    ISSN 0212-1611
    DOI 10.20960/nh.04253
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Purple grape juice improves performance of recreational runners, but the effect is genotype dependent: a double blind, randomized, controlled trial.

    de Sousa, Bruno Rafael Virginio / de Lima Tavares Toscano, Lydiane / de Almeida Filho, Eder Jackson Bezerra / Sena, Klécia Farias / Costa, Matheus Silveira / de Souza Cunha, Rebeka Correia / de Souza Siqueira Quintans, Jullyana / Heimfarth, Luana / Marques, Aline Telles Biasoto / da Silva, Darcilene Fiuza / de Campos, Luis Felipe Castelli Correia / Persuhn, Darlene Camati / Silva, Alexandre Sérgio

    Genes & nutrition

    2022  Volume 17, Issue 1, Page(s) 9

    Abstract: Background: We examined the influence of superoxide dismutase 3 (SOD3) Arg213Gly and Peroxisome Proliferator-Activated α-Receptor (PPARα) 7G/C polymorphisms to a single dose of purple grape juice supplementation on time-to-exhaustion running test, redox ...

    Abstract Background: We examined the influence of superoxide dismutase 3 (SOD3) Arg213Gly and Peroxisome Proliferator-Activated α-Receptor (PPARα) 7G/C polymorphisms to a single dose of purple grape juice supplementation on time-to-exhaustion running test, redox balance and muscle damage in recreational runners.
    Methods: Forty-seven male recreational runners performed a running test until exhaustion after supplementation with grape juice or a control drink. Serum total antioxidant capacity (TAC), malondialdehyde (MDA), plasma nitrite (NO), creatine kinase (CK) and lactate dehydrogenase (LDH) were measured pre and post exercise. Also, polymorphisms were analyzed in DNA extracted from the oral mucosa.
    Results: Grape juice improved the time-to-exhaustion. When analyzed by genotype, the recreational runners with GG+CG genotypes of the SOD3 gene had greater time-to-exhaustion than the CC genotype, but was no different for the PAPRα gene. A slight difference was noted in TAC, since the CC genotype of the SOD3 gene showed higher TAC values in the post-exercise compared to the baseline and with pre-exercise, but these values did not increase compared to the CG+GG group, respectively. The SOD3 and PPARα genes were similar at all times for the other biochemical variables.
    Conclusion: The ergogenic effect of grape juice was genotype-dependent for SOD3 Arg213Gly. However, biochemical redox balance markers did not explain this difference.
    Language English
    Publishing date 2022-06-02
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2416599-2
    ISSN 1865-3499 ; 1555-8932
    ISSN (online) 1865-3499
    ISSN 1555-8932
    DOI 10.1186/s12263-022-00710-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Choline Metabolites, Hydroxybutyrate and HDL after Dietary Fiber Supplementation in Overweight/Obese Hypertensive Women: A Metabolomic Study.

    Dos Santos Fechine, Carla Patricia Novaes / Monteiro, Mussara Gomes Cavalcanti Alves / Tavares, Josean Fechine / Souto, Augusto Lopes / Luna, Rafaella Cristhine Pordeus / da Silva, Cássia Surama Oliveira / da Silva, Jairo Alves / Dos Santos, Sócrates Golzio / de Carvalho Costa, Maria José / Persuhn, Darlene Camati

    Nutrients

    2021  Volume 13, Issue 5

    Abstract: Metabolomics has been increasingly used to evaluate metabolic changes associated with morbidities. The objective of this study is to assess the metabolic profile before and after intervention with mixed dietary fiber in overweight and obese hypertensive ... ...

    Abstract Metabolomics has been increasingly used to evaluate metabolic changes associated with morbidities. The objective of this study is to assess the metabolic profile before and after intervention with mixed dietary fiber in overweight and obese hypertensive women. This is an intervention study, and the sample consists of 14 women aged 28 to 58 years. An intervention with 12 g of mixed soluble and insoluble fiber is performed for a period of eight weeks. Serum metabolites are identified using a Bruker
    MeSH term(s) Adult ; Choline/blood ; Dietary Fiber/pharmacology ; Dietary Supplements ; Female ; Humans ; Hydroxybutyrates/blood ; Hypertension/blood ; Hypertension/complications ; Lipoproteins, HDL/blood ; Magnetic Resonance Spectroscopy ; Middle Aged ; Obesity/blood ; Overweight/blood ; Overweight/complications
    Chemical Substances Dietary Fiber ; Hydroxybutyrates ; Lipoproteins, HDL ; Choline (N91BDP6H0X)
    Language English
    Publishing date 2021-04-24
    Publishing country Switzerland
    Document type Journal Article ; Randomized Controlled Trial
    ZDB-ID 2518386-2
    ISSN 2072-6643 ; 2072-6643
    ISSN (online) 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu13051437
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  8. Article ; Online: Purple grape juice improves performance of recreational runners, but the effect is genotype dependent: a double blind, randomized, controlled trial

    de Sousa, Bruno Rafael Virginio / de Lima Tavares Toscano, Lydiane / de Almeida Filho, Eder Jackson Bezerra / Sena, Klécia Farias / Costa, Matheus Silveira / de Souza Cunha, Rebeka Correia / de Souza Siqueira Quintans, Jullyana / Heimfarth, Luana / Marques, Aline Telles Biasoto / da Silva, Darcilene Fiuza / de Campos, Luis Felipe Castelli Correia / Persuhn, Darlene Camati / Silva, Alexandre Sérgio

    Genes Nutr. 2022 Dec., v. 17, no. 1 p.9-9

    2022  

    Abstract: BACKGROUND: We examined the influence of superoxide dismutase 3 (SOD3) Arg213Gly and Peroxisome Proliferator-Activated α-Receptor (PPARα) 7G/C polymorphisms to a single dose of purple grape juice supplementation on time-to-exhaustion running test, redox ... ...

    Abstract BACKGROUND: We examined the influence of superoxide dismutase 3 (SOD3) Arg213Gly and Peroxisome Proliferator-Activated α-Receptor (PPARα) 7G/C polymorphisms to a single dose of purple grape juice supplementation on time-to-exhaustion running test, redox balance and muscle damage in recreational runners. METHODS: Forty-seven male recreational runners performed a running test until exhaustion after supplementation with grape juice or a control drink. Serum total antioxidant capacity (TAC), malondialdehyde (MDA), plasma nitrite (NO), creatine kinase (CK) and lactate dehydrogenase (LDH) were measured pre and post exercise. Also, polymorphisms were analyzed in DNA extracted from the oral mucosa. RESULTS: Grape juice improved the time-to-exhaustion. When analyzed by genotype, the recreational runners with GG+CG genotypes of the SOD3 gene had greater time-to-exhaustion than the CC genotype, but was no different for the PAPRα gene. A slight difference was noted in TAC, since the CC genotype of the SOD3 gene showed higher TAC values in the post-exercise compared to the baseline and with pre-exercise, but these values did not increase compared to the CG+GG group, respectively. The SOD3 and PPARα genes were similar at all times for the other biochemical variables. CONCLUSION: The ergogenic effect of grape juice was genotype-dependent for SOD3 Arg213Gly. However, biochemical redox balance markers did not explain this difference.
    Keywords DNA ; antioxidant activity ; blood serum ; creatine kinase ; exercise ; genes ; genotype ; grape juice ; lactate dehydrogenase ; males ; malondialdehyde ; mucosa ; muscles ; nitrites ; superoxide dismutase
    Language English
    Dates of publication 2022-12
    Size p. 9.
    Publishing place BioMed Central
    Document type Article ; Online
    ZDB-ID 2416599-2
    ISSN 1865-3499 ; 1555-8932
    ISSN (online) 1865-3499
    ISSN 1555-8932
    DOI 10.1186/s12263-022-00710-1
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Prenatal disorders and congenital Zika syndrome in squirrel monkeys.

    Imbeloni, Aline Amaral / de Alcantara, Bianca Nascimento / Coutinho, Leandro Nassar / de Azevedo Scalercio, Sarah Raphaella Rocha / Carneiro, Liliane Almeida / Oliveira, Karol Guimarães / Filho, Arnaldo Jorge Martins / de Brito Simith Durans, Darlene / da Silva, Wellington Bandeira / Nunes, Bruno Tardelli Diniz / Casseb, Livia Medeiros Neves / Chiang, Jannifer Oliveira / de Carvalho, Carlos Alberto Marques / Machado, Mariana Borges / Quaresma, Juarez Antônio Simões / de Almeida Medeiros, Daniele Barbosa / da Costa Vasconcelos, Pedro Fernando

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 2698

    Abstract: During the Zika virus (ZIKV) outbreak in Brazil (2015-2016), the clinical manifestations associated with its infection were complex and included miscarriage and congenital malformations, not previously described. In this study, we evaluated the prenatal ... ...

    Abstract During the Zika virus (ZIKV) outbreak in Brazil (2015-2016), the clinical manifestations associated with its infection were complex and included miscarriage and congenital malformations, not previously described. In this study, we evaluated the prenatal conditions of pregnant female squirrel monkeys (Saimiri collinsi) infected during different gestational thirds (GTs) and assessed all clinical aspects, diagnostic imaging, viremia and the immune response. In our study, 75% of the infected animals in the 1st GT group had significant clinical manifestations, such as miscarriage and prolonged viremia associated with a late immune response. Consequently, their neonates showed fetal neuropathology, such as cerebral hemorrhage, lissencephaly or malformations of the brain grooves, ventriculomegaly, and craniofacial malformations. Thus, our study demonstrated the relevance of pregnant squirrel monkeys as a model for the study of ZIKV infection in neonates due to the broad clinical manifestations presented, including the typical congenital Zika syndrome manifestations described in humans.
    MeSH term(s) Animals ; Brazil/epidemiology ; Female ; Fetal Diseases/epidemiology ; Fetal Diseases/metabolism ; Fetal Diseases/veterinary ; Fetal Diseases/virology ; Microcephaly/embryology ; Microcephaly/metabolism ; Microcephaly/virology ; Monkey Diseases/epidemiology ; Monkey Diseases/metabolism ; Monkey Diseases/virology ; Pregnancy ; Saimiri/virology ; Zika Virus/metabolism ; Zika Virus Infection/epidemiology ; Zika Virus Infection/metabolism ; Zika Virus Infection/veterinary
    Language English
    Publishing date 2021-01-29
    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/s41598-021-82028-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Histopathological lesions of congenital Zika syndrome in newborn squirrel monkeys.

    de Alcantara, Bianca Nascimento / Imbeloni, Aline Amaral / de Brito Simith Durans, Darlene / de Araújo, Marialva Tereza Ferreira / do Rosário Moutinho da Cruz, Ermelinda / de Carvalho, Carlos Alberto Marques / de Mendonça, Maria Helena Rodrigues / de Sousa, Jorge Rodrigues / Moraes, Adriana Freitas / Filho, Arnaldo Jorge Martins / de Lourdes Gomes Lima, Maria / Neto, Orlando Pereira Amador / Chiang, Jannifer Oliveira / de Azevedo Scalercio, Sarah Raphaella Rocha / Carneiro, Liliane Almeida / Quaresma, Juarez Antônio Simões / da Costa Vasconcelos, Pedro Fernando / de Almeida Medeiros, Daniele Barbosa

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 6099

    Abstract: The absence of an adequate animal model for studies has limited the understanding of congenital Zika syndrome (CZS) in humans during the outbreak in America. In this study, we used squirrel monkeys (Saimiri collinsi), a neotropical primate (which mimics ... ...

    Abstract The absence of an adequate animal model for studies has limited the understanding of congenital Zika syndrome (CZS) in humans during the outbreak in America. In this study, we used squirrel monkeys (Saimiri collinsi), a neotropical primate (which mimics the stages of human pregnancy), as a model of Zika virus (ZIKV) infection. Seven pregnant female squirrel monkeys were experimentally infected at three different gestational stages, and we were able reproduce a broad range of clinical manifestations of ZIKV lesions observed in newborn humans. Histopathological and immunohistochemical analyses of early-infected newborns (2/4) revealed damage to various areas of the brain and ZIKV antigens in the cytoplasm of neurons and glial cells, indicative of CZS. The changes caused by ZIKV infection were intrauterine developmental delay, ventriculomegaly, simplified brain gyri, vascular impairment and neuroprogenitor cell dysfunction. Our data show that the ZIKV infection outcome in squirrel monkeys is similar to that in humans, indicating that this model can be used to help answer questions about the effect of ZIKV infection on neuroembryonic development and the morphological changes induced by CZS.
    MeSH term(s) Animals ; Animals, Newborn ; Brain/embryology ; Brain/pathology ; Brain/virology ; Female ; Pregnancy ; Pregnancy Complications, Infectious/pathology ; Pregnancy Complications, Infectious/virology ; Saimiri ; Syndrome ; Zika Virus ; Zika Virus Infection/embryology ; Zika Virus Infection/pathology
    Language English
    Publishing date 2021-03-17
    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/s41598-021-85571-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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