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Armada G, Roque S, Serre-Miranda C, Ferreira L, Vale A, Rodrigues AJ, Hong W, Correia-Neves M, Vieira N. SNX27: A trans-species cognitive modulator with implications for anxiety and stress susceptibility. Neurobiol Stress 2024; 30:100619. [PMID: 38500791 PMCID: PMC10945257 DOI: 10.1016/j.ynstr.2024.100619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/08/2024] [Accepted: 02/16/2024] [Indexed: 03/20/2024] Open
Abstract
Sorting Nexin 27 (SNX27) is a brain-enriched endosome-associated cargo adaptor that shapes excitatory control, being relevant for cognitive and reward processing, and for several neurological conditions. Despite this, SNX27's role in the nervous system remains poorly explored. To further understand SNX27 function, we performed an extensive behavioral characterization comprising motor, cognitive and emotional dimensions of SNX27+/- mice. Furthermore, attending on the recently described association between SNX27 function and cellular stress signaling mechanisms in vitro, we explored SNX27-stress interplay using a Caenorhabditis elegans Δsnx-27 mutant and wild-type (WT) rodents after stress exposure. SNX27+/- mice, as C. elegans Δsnx-27 mutants, present cognitive impairments, highlighting a conserved role for SNX27 in cognitive modulation across species. Interestingly, SNX27 downmodulation leads to anxiety-like behavior in mice evaluated in the Elevated Plus Maze (EPM). This anxious phenotype is associated with increased dendritic complexity of the bed nucleus of the stria terminalis (BNST) neurons, and increased complexity of the basolateral amygdala (BLA) pyramidal neurons. These findings highlight the still unknown role of SNX27 in anxiety regulation. Moreover, we uncovered a direct link between SNX27 dysfunction and stress susceptibility in C. elegans and found that stress-exposed rodents display decreased SNX27 levels in stress-susceptible brain regions. Altogether, we provided new insights on SNX27's relevance in anxiety-related behaviors and neuronal structure in stress-associated brain regions.
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Affiliation(s)
- Gisela Armada
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Cláudia Serre-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Liliana Ferreira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Ana Vale
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Ana João Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Wanjin Hong
- Institute of Molecular and Cell Biology, 61 Biopolis Drive, Singapore, 138673, Singapore
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Neide Vieira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal
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Ferreira J, Roque S, Lima Carneiro A, Longatto-Filho A, Vila I, Cunha C, Silva C, Mesquita A, Cotter J, Correia-Neves M, Mansilha A, Cunha PG. Reversion of the Inflammatory Markers in Patients With Chronic Limb-Threatening Ischemia. J Am Heart Assoc 2024; 13:e031922. [PMID: 38606780 DOI: 10.1161/jaha.123.031922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 02/23/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND Peripheral artery disease is characterized by an intense inflammatory process that can be associated with a higher mortality rate, particularly in chronic limb-threatening ischemia (CLTI). This study aims to compare the evolution of inflammatory markers between patients with claudication with those with CLTI at 3, 6, and 12 months. METHODS AND RESULTS An observational, single-center, and prospective study was conducted. A total of 119 patients with peripheral artery disease (65 with claudication and 54 with CLTI) were observed and inflammatory markers collected at admission and 3, 6, and 12 months. At admission, patients with CLTI, when compared with patients with claudication, had significantly higher serum levels of C-reactive protein and fibrinogen (positive acute-phase proteins) and lower serum level of albumin, total cholesterol, and high-density lipoprotein (negative acute-phase proteins): C-reactive protein (g/dL), 2.90 (25th-75th percentile, 2.90-4.90) versus 6.80 (25th-75th percentile, 2.90-53.26) (P=0.000); fibrinogen (mg/dL), 293.00 (25th-75th percentile, 269.25-349.00) versus 415.50 (25th-75th percentile, 312.00-615.75) (P=0.000); total cholesterol (mg/dL), 161.79±95% [152.74-170.85] versus 146.42%±95% [135.30-157.53] (P=0.034); high-density lipoprotein (mg/dL), 50.00 (25th-75th percentile, 41.00-60.00) versus 37.00 (25th-75th percentile, 30.00-45.50) (P=0.000); albumin (g/dL): 4.00 (25th-75th percentile, 3.70-4.20) versus 3.60 (25th-75th percentile, 3.10-4.00) (P=0.003). The association between CLTI and total cholesterol was lost after adjusting for confounders. Three months after the resolution of the CLTI, there was an increase in the levels of negative acute-phase proteins and a decrease in positive acute-phase proteins. These inflammatory proteins did not register an evolution in patients with claudication. The differences in the inflammatory proteins between groups disappeared at 6 months. CONCLUSIONS CLTI has an inflammatory environment that can be partially reverted after resolution of the ischemic process, emphasizing the importance of timely intervention.
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Affiliation(s)
- Joana Ferreira
- Vascular Surgery Department-Physiology and Surgery Centro Hospitalar Universitário de São João Porto Portugal
- Life and Health Science Research Institute (ICVS), School of Medicine University of Minho Braga Portugal
- ICVS/3B's-PT Government Associated Laboratory Braga Portugal
- Academic Center Hospital da Senhora da Oliveira Guimarães Portugal
- Clinical Academic Center Hospital de Trás-os-Montes e Alto Douro-Professor Doutor Nuno Grande-CACTMAD Vila Real Portugal
| | - Susana Roque
- Life and Health Science Research Institute (ICVS), School of Medicine University of Minho Braga Portugal
- ICVS/3B's-PT Government Associated Laboratory Braga Portugal
| | | | - Adhemar Longatto-Filho
- Life and Health Science Research Institute (ICVS), School of Medicine University of Minho Braga Portugal
- ICVS/3B's-PT Government Associated Laboratory Braga Portugal
- Department of Pathology (LIM-14) University of São Paulo School of Medicine São Paulo Brazil
- Molecular Oncology Research Center Barretos Cancer Hospital Barretos São Paulo Brazil
| | - Isabel Vila
- Academic Center Hospital da Senhora da Oliveira Guimarães Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira Guimarães Portugal
- Internal Medicine Department Hospital da Senhora da Oliveira, Guimarães Braga Portugal
| | - Cristina Cunha
- Academic Center Hospital da Senhora da Oliveira Guimarães Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira Guimarães Portugal
- Internal Medicine Department Hospital da Senhora da Oliveira, Guimarães Braga Portugal
| | - Cristina Silva
- Academic Center Hospital da Senhora da Oliveira Guimarães Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira Guimarães Portugal
- Internal Medicine Department Hospital da Senhora da Oliveira, Guimarães Braga Portugal
| | - Amílcar Mesquita
- Vascular Surgery Department-Hospital da Senhora da Oliveira Guimarães Portugal
| | - Jorge Cotter
- Life and Health Science Research Institute (ICVS), School of Medicine University of Minho Braga Portugal
- ICVS/3B's-PT Government Associated Laboratory Braga Portugal
- Academic Center Hospital da Senhora da Oliveira Guimarães Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira Guimarães Portugal
- Internal Medicine Department Hospital da Senhora da Oliveira, Guimarães Braga Portugal
| | - Margarida Correia-Neves
- Life and Health Science Research Institute (ICVS), School of Medicine University of Minho Braga Portugal
- ICVS/3B's-PT Government Associated Laboratory Braga Portugal
| | - Armando Mansilha
- Vascular Surgery Department-Physiology and Surgery Centro Hospitalar Universitário de São João Porto Portugal
- Department of Angiology and Vascular Surgery Centro Hospitalar Universitário de São João Porto Portugal
- Faculty of Medicine University of Porto Porto Portugal
| | - Pedro Guimarães Cunha
- Life and Health Science Research Institute (ICVS), School of Medicine University of Minho Braga Portugal
- ICVS/3B's-PT Government Associated Laboratory Braga Portugal
- Academic Center Hospital da Senhora da Oliveira Guimarães Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira Guimarães Portugal
- Internal Medicine Department Hospital da Senhora da Oliveira, Guimarães Braga Portugal
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Costeira MJ, Costa P, Roque S, Carvalho I, Vilarinho L, Palha JA. History of Neonatal Screening of Congenital Hypothyroidism in Portugal. Int J Neonatal Screen 2024; 10:16. [PMID: 38390980 PMCID: PMC10885029 DOI: 10.3390/ijns10010016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/24/2024] [Accepted: 02/13/2024] [Indexed: 02/24/2024] Open
Abstract
Congenital hypothyroidism (CH) leads to growth and development delays and is preventable with early treatment. Neonatal screening for CH was initiated in Portugal in 1981. This study examines the history of CH screening in the country. Data were obtained from annual reports and from the national database of neonatal screening laboratory. The CH screening strategy primarily relies on the thyroid-stimulating hormone (TSH), followed by total thyroxine measurement as the second tier for confirmation. The TSH cutoff started at 90 mIU/L, decreasing to the actual 10 mIU/L. The coverage of the screening program has increased rapidly; although voluntary, it reached about 90% in 6 years and became universal in 10 years. Guideline and cutoff updates led to the identification of over 200 additional cases, resulting in specific retesting protocols for preterm and very-low-birth-weight babies. The actual decision tree considers CH when TSH levels are above 40 mIU/L. Data from the CH screening also provide an indication of the iodine status of the population, which is presently indicative of iodine insufficiency. The Portuguese neonatal screening for CH is a history of success. It has rapidly and continuously adapted to changes in knowledge and has become a universal voluntary practice within a few years.
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Affiliation(s)
- Maria José Costeira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (M.J.C.); (P.C.)
- ICVS/3B’s—PT Government Associate Laboratory, Braga/Guimarães, 4710-057 Braga, Portugal
- Department of Neonatology, Unidade Local de Saúde do Alto Ave Rua dos Cutileiros, 4835-044 Guimarães, Portugal
| | - Patrício Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (M.J.C.); (P.C.)
- ICVS/3B’s—PT Government Associate Laboratory, Braga/Guimarães, 4710-057 Braga, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (M.J.C.); (P.C.)
- ICVS/3B’s—PT Government Associate Laboratory, Braga/Guimarães, 4710-057 Braga, Portugal
| | - Ivone Carvalho
- Neonatal Screening, Metabolism & Genetics—National Institute of Health Dr. Ricardo Jorge, 4000-053 Porto, Portugal; (I.C.); (L.V.)
| | - Laura Vilarinho
- Neonatal Screening, Metabolism & Genetics—National Institute of Health Dr. Ricardo Jorge, 4000-053 Porto, Portugal; (I.C.); (L.V.)
| | - Joana Almeida Palha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (M.J.C.); (P.C.)
- ICVS/3B’s—PT Government Associate Laboratory, Braga/Guimarães, 4710-057 Braga, Portugal
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Ferreira J, Afonso J, Longatto-Filho A, Roque S, Carneiro A, Vila I, Silva C, Cunha C, Mesquita A, Cotter J, Correia-Neves M, Mansilha A, Cunha P. Inflammation Is a Histological Characteristic of Skeletal Muscle in Chronic Limb Threatening Ischemia. Ann Vasc Surg 2024; 99:10-18. [PMID: 37931803 DOI: 10.1016/j.avsg.2023.09.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND The loss of skeletal muscle is a prognostic factor in several diseases including in patients with chronic limb threatening ischemia (CLTI). Patients with CLTI also have a lower skeletal mass and area when compared to those with claudication. However, there are no currently available data regarding the histological characteristics of core muscles in patients with CLTI. This study aims to determine the differences in core skeletal muscles between patients with claudication and those with CLTI. The second aim is to evaluate the differences in myokines, which are molecules secreted by skeletal muscle, between patients with claudication and those with CLTI. METHODS An observational, prospective study was conducted from January 2018 to July 2022 involving consecutive patients with peripheral arterial disease (PAD). The clinical characteristics were registered. In PAD patients with surgical indication for common femoral artery approach, samples of sartorius skeletal muscle (and not from the limb muscles directly involved in the ischemic process) were collected. The samples were submitted to histological characterization on hematoxylin-eosin and to immunohistochemical analysis to detect CD45+ leukocytes and CD163+ macrophages. The extent of the inflammatory cells (leukocytes and macrophages) was semiquantitatively assessed using a 0-to-4 grade scale as follows: absent (0†), mild (†), moderate (††), severe (†††), and very severe (††††). Serum levels of myokines: irisin, myostatin, IL-8, and lL-6 were determined with multiplex bead-based immunoassay. RESULTS 119 patients (mean age: 67.58 ± 9.60 years old, 79.80% males) 64 with claudication and 54 with CLTI were enrolled in the study. No differences were registered between patients with claudication and those with CLTI on age, gender, cardiovascular risk factors, and medication, except on smoking habits. There was a significantly higher prevalence of smokers and a higher smoking load in the claudication group. Samples of sartorius skeletal muscle from 40 patients (14 with claudication and 26 with CLTI) were submitted to histological analysis. No differences were found in skeletal muscle fibers preservation, trauma, or hemorrhage (on hematoxylin-eosin staining). However, in the immunohistochemistry study, we found more inflammatory cells CD45+ leukocytes in patients with CLTI when compared to those with claudication [CD45+ ≥ moderate (††): claudication (n = 14): 4; 28.57%; CLTI (n = 25): 16; 64.00%; P = 0.034]. Patients with CLTI also had higher tissue levels of CD163+ macrophages, but this difference was not significant [CD163+ ≥ moderate (††): claudication (n = 13): 7; 53.85%; CLTI (n = 27): 21; 77.78%; P = 0.122]. The serum levels of the myokines, irisin, and myostatin were below the lower limit of detection, in the majority of patients, so no valid results were obtained. However, patients with CLTI had a higher serum level of Interleukin (IL)-6 and IL-8. CONCLUSIONS CLTI patients exhibit increased quantities of leukocytes in their sartorius muscle, as well as elevated serum levels of myokines IL-8 and IL-6. Inflamed skeletal muscle can contribute to the loss of muscle mass and account for the lower density of skeletal muscle observed in CLTI. Additionally, inflamed skeletal muscle may contribute to the development of systemic inflammation through the secretion of pro-inflammatory cytokines into the systemic circulation. Halting the inflammatory process could eventually improve the prognosis of CLTI patients.
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Affiliation(s)
- Joana Ferreira
- Vascular Surgery Department - Physiology and Surgery, Centro Hospitalar Universitário de São João, Porto, Portugal; Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal; Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Clinical Academic Center Hospital de Trás-os-Montes e Alto Douro-Professor Doutor Nuno Grande-CACTMAD, Vila Real, Portugal.
| | - Julieta Afonso
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal; Department of Pathology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil; Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
| | - Susana Roque
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal
| | - Alexandre Carneiro
- Radiology Department, Unidade Local de Saúde Alto Minho, Viana do Castelo, Portugal
| | - Isabel Vila
- Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Cristina Silva
- Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Cristina Cunha
- Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Amílcar Mesquita
- Vascular Surgery Department, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Jorge Cotter
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal; Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal
| | - Armando Mansilha
- Vascular Surgery Department - Physiology and Surgery, Centro Hospitalar Universitário de São João, Porto, Portugal; Department of Angiology and Vascular Surgery, Centro Hospitalar Universitário de São João, Porto, Portugal; Faculty of Medicine, University of Porto, Porto, Portugal
| | - Pedro Cunha
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal; Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
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Lopes-Pereira M, Roque S, Machado SI, Korevaar TIM, Quialheiro A, Machado A, Vilarinho L, Correia-Neves M, Galanti MR, Bordalo AA, Costa P, Palha JA. Iodineminho Study: Iodine Supplementation and Prevalence of Iodine Deficiency in Pregnant Women. J Clin Endocrinol Metab 2024:dgae041. [PMID: 38266309 DOI: 10.1210/clinem/dgae041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/04/2024] [Accepted: 01/18/2024] [Indexed: 01/26/2024]
Abstract
CONTEXT Iodine is necessary for the proper brain development. The prevalence of iodine deficiency in Portuguese pregnant women led the health authorities, in 2013, to recommend iodine supplementation for women in preconception, throughout pregnancy and during lactation. OBJECTIVE To assess the impact of iodine supplementation initiated in the preconception or the first trimester of pregnancy on the prevalence of iodine deficiency and maternal thyroid status. METHODS An observational prospective cohort study that follows thyroid function and iodine status of women recruited in preconception or in the first trimester of pregnancy. RESULTS The median urinary iodine concentration (UIC) was significantly higher among women taking iodine supplements (no-supplement group UIC=63µg/L; supplement group UIC =100µg/L, p = 0.002) but still below the levels recommended by the World Health Organization. Only 15% of pregnant women had adequate iodine status and 17% showed UIC < 50 µg/l. There was no influence of whether iodine supplementation started in preconception or in the 1st trimester of gestation (UIC preconception group: 112µg/L vs UIC pregnancy group: 91µg/L, p = 0.569). In the 1st trimester of pregnancy, total thyroxine levels were lower and free triiodothyronine levels were higher in non-supplemented women. Thyroglobulin levels were lower in women who started iodine supplementation in preconception compared to non-supplemented women and women who started iodine supplementation during gestation. CONCLUSION In the Minho region of Portugal, fertile women have insufficient iodine intake. Additional public health measures are needed since the current recommendations for iodine supplementation for pregnancy are unsatisfactory to achieve an adequate iodine status.
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Affiliation(s)
- Maria Lopes-Pereira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães
- Hospital de Braga, Braga, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães
| | - Sarai Isabel Machado
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães
| | - Tim I M Korevaar
- Academic Center for Thyroid Diseases, Erasmus MC, Rotterdam, the Netherlands; Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands
| | - Anna Quialheiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães
| | - Ana Machado
- Laboratory of Hydrobiology and Ecology, Institute of Biomedical Sciences (ICBAS-UP) & Interdisciplinary Centre of Marine and Environment Research (CIIMAR), University of Porto, Porto, Portugal
| | - Laura Vilarinho
- Newborn Screening, Metabolism & Genetics Unit, National Institute of Health Dr Ricardo Jorge, Porto, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães
| | | | - Adriano A Bordalo
- Laboratory of Hydrobiology and Ecology, Institute of Biomedical Sciences (ICBAS-UP) & Interdisciplinary Centre of Marine and Environment Research (CIIMAR), University of Porto, Porto, Portugal
| | - Patrício Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães
| | - Joana Almeida Palha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães
- Clinical Academic Center, Braga, Portugal
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Ferreira J, Afonso J, Carneiro AL, Vila I, Cunha C, Roque S, Silva C, Mesquita A, Cotter J, Correia-Neves M, Mansilha A, Longatto-Filho A, Cunha P. Exploring the Diversity of Visceral, Subcutaneous and Perivascular Adipose Tissue in a Vascular Surgery Population. J Cardiovasc Dev Dis 2023; 10:271. [PMID: 37504527 PMCID: PMC10380901 DOI: 10.3390/jcdd10070271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/03/2023] [Accepted: 06/19/2023] [Indexed: 07/29/2023] Open
Abstract
The prevalence of obesity has doubled, with a concomitant increase in cardiovascular disease. This study aimed to compare the characteristics of visceral, subcutaneous and peri-aortic adipose tissue determined with computed tomography (CT) scans and to correlate them with cardiovascular risk factors, anthropometric measures and medication. An observational and prospective study was conducted, and 177 subjects were included. Peri-aortic adipose tissue had the highest density, while the subcutaneous adipose tissue had the lowest. The density of subcutaneous adipose tissue differs from the density of visceral (p = 0.00) and peri-aortic adipose tissue (p = 0.00). Smokers/ex-smokers had a lower area (p = 0.00) and density (p = 0.02) of subcutaneous adipose tissue. Multiple linear regression analysis showed that sex was a predictor of subcutaneous adipose tissue area (β = -0.27, t = -3.12, p = 0.00) but smoking habits were not. After controlling for sex, we found that the association between smokers/ex-smokers and area of subcutaneous adipose tissue was lost, but the association with density persisted. Patients with hypertension had a higher visceral adipose tissue area, and this relationship was maintained even after adjusting for gender. Peri-aortic adipose tissue is similar to visceral and distinct from subcutaneous adipose tissue. Cardiovascular risk factors have different influences in distinct adipose compartments.
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Affiliation(s)
- Joana Ferreira
- Vascular Surgery Department, Centro Hospitalar de Trás-os-Montes e Alto Douro, 5000-508 Vila Real, Portugal
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Clinical Academic Center Hospital de Trás-os-Montes e Alto Douro, Professor Doutor Nuno Grande, CACTMAD, 5000-508 Vila Real, Portugal
| | - Julieta Afonso
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | - Alexandre Lima Carneiro
- Radiology Department, Unidade Local de Saúde Alto Minho, 4904-858 Viana do Castelo, Portugal
| | - Isabel Vila
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Cristina Cunha
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Susana Roque
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | - Cristina Silva
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Amílcar Mesquita
- Vascular Surgery Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Jorge Cotter
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | - Armando Mansilha
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- Department of Angiology and Vascular Surgery, Hospital de São João, 4200-319 Porto, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Faculty of Medicine, Department of Pathology, University of São Paulo, São Paulo 05508-900, SP, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-390, SP, Brazil
| | - Pedro Cunha
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
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7
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Roque S, de Sá-Calçada D, Cerqueira-Rodrigues B, Monteiro S, Guerreiro SG, Palha JA, Correia-Neves M. Chronic Mycobacterium avium infection differentially affects the cytokine expression profile of three mouse strains, but has no effect on behavior. Sci Rep 2023; 13:6199. [PMID: 37069180 PMCID: PMC10110542 DOI: 10.1038/s41598-023-33121-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/07/2023] [Indexed: 04/19/2023] Open
Abstract
One of the most remarkable findings in the immunology and neuroscience fields was the discovery of the bidirectional interaction between the immune and the central nervous systems. This interplay is tightly regulated to maintain homeostasis in physiological conditions. Disruption in this interplay has been suggested to be associated with several neuropsychiatric disorders. Most studies addressing the impact of an immune system disruption on behavioral alterations focus on acute pro-inflammatory responses. However, chronic infections are highly prevalent and associated with an altered cytokine milieu that persists over time. Studies addressing the potential effect of mycobacterial infections on mood behavior originated discordant results and this relationship needs to be further addressed. To increase our understanding on the effect of chronic infections on the central nervous system, we evaluated the role of Mycobacterium avium infection. A model of peripheral chronic infection with M. avium in female from three mouse strains (Balb/c, C57BL/6, and CD-1) was used. The effect of the infection was evaluated in the cytokine expression profile (spleen and hippocampus), hippocampal cell proliferation, neuronal plasticity, serum corticosterone production and mood behavior. The results show that M. avium peripheral chronic infection induces alterations not just in the peripheral immune system but also in the central nervous system, namely in the hippocampus. Interestingly, the cytokine expression profile alterations vary between mouse strains, and are not accompanied by hippocampal cell proliferation or neuronal plasticity changes. Accordingly, no differences were observed in locomotor, anxious and depressive-like behaviors, in any of the mouse strains used. We conclude that the M. avium 2447 infection-induced alterations in the cytokine expression profile, both in the periphery and the hippocampus, are insufficient to alter hippocampal plasticity and behavior.
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Affiliation(s)
- Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - Daniela de Sá-Calçada
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Bruno Cerqueira-Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Susana Monteiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Susana G Guerreiro
- Institute for Research and Innovation in Health (i3S), Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto-IPATIMUP, Porto, Portugal
- Biochemistry Unit, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Joana A Palha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
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8
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Gallo V, Gentile R, Antonini G, Iacobelli S, Nobrega C, Silva CS, Sarmento H, Cotter J, Canto-Gomes J, Palha J, Peixoto P, Barreira-Silva P, Sousa JC, Correia-Neves M, Formigo M, Vieira N, Cunha PG, Roque S, Gentile R, Antonini G, Iacobelli S. Increased Gal-3BP plasma levels in hospitalized patients infected with SARS-CoV-2. Clin Exp Med 2023; 23:151-155. [PMID: 35076790 PMCID: PMC8787969 DOI: 10.1007/s10238-021-00788-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 12/17/2021] [Indexed: 12/20/2022]
Abstract
Coronavirus disease 2019 (COVID-19) has quickly turned into a health, financial and societal problem globally. The complex pathogenesis of severe acute respiratory syndrome coronavirus centers on the unpredictable clinical progression of the disease, which may evolve abruptly and results in critical and life-threatening clinical complications. Effective laboratory biomarkers that can classify patients according to risk of progression to severe disease are essential for ensuring timely treatment. Gal-3BP is a human secreted protein with innate immune functions, which is upregulated in viral infections, promotes inflammation and has been shown to induce IL-6 expression. In this study, Gal-3BP plasma levels were measured retrospectively in a cohort of 84 hospitalized COVID-19 patients. These were classified as having either "non-severe" or "severe" disease. Compared to healthy controls, Gal-3BP plasma levels were markedly increased in COVID-19 patients (P < 0.0001). Moreover, the levels were higher in severe than in non-severe patients (P < 0.05). As expected, patients with severe disease had plasma levels of IL-6 higher than patients with non-severe disease (P < 0.01). In non-severe disease patients, Gal-3BP levels collected at a late stage (13.3 + 5.7 days after the first positive PCR result) were significantly lower than those collected at an early stage (4.2 + 2.9 days form the first positive PCR result). Larger prospective analyses are needed to strength our understanding of the prognostic utility of Gal-3BP in COVID-19 patients.
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Affiliation(s)
- Valentina Gallo
- Department of Sciences, Roma Tre University, Rome, Italy ,Biostructures and Biosystems National Institute (INBB), Rome, Italy
| | | | | | - Giovanni Antonini
- Department of Sciences, Roma Tre University, Rome, Italy. .,Biostructures and Biosystems National Institute (INBB), Rome, Italy.
| | - Stefano Iacobelli
- Biostructures and Biosystems National Institute (INBB), Rome, Italy ,MediaPharma Srl, Chieti, Italy
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9
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Pedro AR, Rosário R, Monteiro I, Cerqueira M, Roque S, Assunção V, Brandão D, Escoval A, Ferreira PL. Health literacy in higher education students: findings from a Portuguese study. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac130.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Health literacy (HL) concerns the knowledge and competences of people to meet the complex demands of health in modern society. It is essential for health promotion, disease prevention and healthcare. Young adults can perform a very important role in taking a more active role in managing and protect their health, so this study aimed to identify the HL levels in the population of higher education students, according to the European Health Literacy Survey (HLS-EU-PT) and to evaluate its association with social and academic determinants.
Methods
A quantitative, observational, and cross-sectional study was carried out based on an online survey disseminated in Portuguese universities. Data were analysed using binary logistic regression, adjusted for age, income, parents’ education, gender, and chronic disease report.
Results
In total, 4801 students were surveyed, 76% female. Of those, 44% revealed a problematic or inadequate level of HL. Those students with higher income levels (OR (95% CI), OR = 4.5 (3.4; 5.9) and whose parents had higher education levels (OR = 1.3(1.1; 1.5) had higher odds of achieving sufficient or excellent levels of HL, even after adjusting for confounders. In what concerns academic determinants, data revealed that HL tends to be sufficient or excellent among those students from health-related courses (OR = 2.0 (1.6; 2.5). In the subgroup of students from non-health-related courses, it was found that HL levels do not differ in 1st year and last year's students. However, in students from health-related courses, data revealed that a last yeaŕs students had higher odds of having sufficient or excellent HL levels compared to a 1st-year student (OR = 1.7 (1.4; 2.2).
Conclusions
This study reveals low HL levels and addresses that socioeconomic and familiar context are determinants of HL in higher education students. Future intervention studies are needed, focused on these determinants so that adequate levels of HL are achieved in higher education students.
Key messages
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Affiliation(s)
- AR Pedro
- Public Health Research Centre, National School of Public Health of NOVA University of Lisbon , Lisbon, Portugal
- Comprehensive Health Research Centre , Lisbon, Portugal
- Rede Académica de Literacia em Saúde , Lisbon, Portugal
| | - R Rosário
- School of Nursing, University of Minho , Braga, Portugal
- Health Sciences Research Unit: Nursing, Nursing School of Coimbra , Coimbra, Portugal
- Rede Académica de Literacia em Saúde , Lisbon, Portugal
| | - I Monteiro
- University of Aveiro , Aveiro, Portugal
- Rede Académica de Literacia em Saúde , Lisbon, Portugal
| | - M Cerqueira
- University of Aveiro , Aveiro, Portugal
- Rede Académica de Literacia em Saúde , Lisbon, Portugal
| | - S Roque
- Escola Superior de Saúde de Portalegre, Instituto Politécnico de Portalegre , Portalegre, Portugal
- Rede Académica de Literacia em Saúde , Lisbon, Portugal
| | - V Assunção
- Faculty of Dental Medicine, University of Lisbon , Lisbon, Portugal
- Rede Académica de Literacia em Saúde , Lisbon, Portugal
| | - D Brandão
- Public Health Research Centre, National School of Public Health of NOVA University of Lisbon , Lisbon, Portugal
- Rede Académica de Literacia em Saúde , Lisbon, Portugal
| | - A Escoval
- Public Health Research Centre, National School of Public Health of NOVA University of Lisbon , Lisbon, Portugal
- Comprehensive Health Research Centre , Lisbon, Portugal
- Rede Académica de Literacia em Saúde , Lisbon, Portugal
| | - PL Ferreira
- Faculty of Economics, University of Coimbra , Coimbra, Portugal
- Centre for Health Studies and Research of the University of Coimbra , Coimbra, Portugal
- Rede Académica de Literacia em Saúde , Lisbon, Portugal
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Conneely M, Grussu D, Hirata Tsutsumi S, Roque S, Campbell P, Hickerson R. 797 Optimal tension facilitates wound healing in a full-thickness ex vivo human skin model. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Bonifácio Andrade E, Lorga I, Roque S, Geraldo R, Mesquita P, Castro R, Simões-Costa L, Costa M, Faustino A, Ribeiro A, Correia-Neves M, Trieu-Cuot P, Ferreira P. Maternal vaccination against group B Streptococcus glyceraldehyde-3-phosphate dehydrogenase leads to gut dysbiosis in the offspring. Brain Behav Immun 2022; 103:186-201. [PMID: 35427758 DOI: 10.1016/j.bbi.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/27/2022] [Accepted: 04/10/2022] [Indexed: 10/18/2022] Open
Abstract
Group B Streptococcus (GBS) remains a major neonatal life-threatening pathogen. We initially identified glyceraldehyde-3-phosphate dehydrogenase (GAPDH) as a promising vaccine candidate against GBS. Since GAPDH is highly conserved, we investigate whether GBS GAPDH maternal vaccination interferes with the intestinal colonization of the offspring and the development of its mucosal immune system and central nervous system. An altered gut microbiome with increased Proteobacteria is observed in pups born from vaccinated dams during early life. These pups present decreased relative expression of IL-1β, IL-17A, RegIIIγ and MUC2 in the distal colon. They also display increased CD11b, F4/80 and MHC class II expression on microglia in early life and marked reduction of Ly6C+ cells and neutrophils. Importantly, male mice born from vaccinated mothers present behavioral abnormalities during adulthood, including decreased exploratory behavior, a subtle anxious-like phenotype and global alterations in spatial learning and memory strategies, and higher sensitivity to a stressful stimulus. Our study highlights the danger of using ubiquitous antigens in maternal human vaccines against neonatal pathogens.
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Affiliation(s)
- Elva Bonifácio Andrade
- ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto, Portugal; i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.
| | - Inês Lorga
- ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto, Portugal; i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rafaela Geraldo
- ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Pedro Mesquita
- ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Rogério Castro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Luísa Simões-Costa
- Health Data Science Unit, Medical Faculty University Heidelberg and BioQuant, Heidelberg, Germany
| | - Madalena Costa
- ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto, Portugal; UMIB - Unit for Multidisciplinary Investigation in Biomedicine (Endocrine, Cardiovascular & Metabolic Research), University of Porto, Portugal
| | - Augusto Faustino
- ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Adília Ribeiro
- ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto, Portugal; i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Patrick Trieu-Cuot
- Institut Pasteur, Unité de Biologie des Bactéries Pathogènes à Gram-positif, Centre National de la Recherche Scientifique (CNRS UMR 60647), Paris 75015, France
| | - Paula Ferreira
- ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Porto, Portugal; i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.
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12
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Lopes-Pereira M, Quialheiro A, Costa P, Roque S, Correia Santos N, Correia-Neves M, Goios A, Carvalho I, Korevaar TIM, Vilarinho L, Palha JA. Iodine supplementation: compliance and association with adverse obstetric and neonatal outcomes. Eur Thyroid J 2022; 11:e210035. [PMID: 34981750 PMCID: PMC9142800 DOI: 10.1530/etj-21-0035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 09/16/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Over 1.9 billion people worldwide are living in areas estimated to be iodine insufficient. Strategies for iodine supplementation include campaigns targeting vulnerable groups, such as women in pre-conception, pregnancy and lactation. Portuguese women of childbearing age and pregnant women were shown to be mildly-to-moderately iodine deficient. As a response, in 2013, the National Health Authority (NHA) issued a recommendation that all women considering pregnancy, pregnant or breastfeeding, take a daily supplement of 150-200 μg iodine. This study explored how the iodine supplementation recommendation has been fulfilled among pregnant and lactating women in Portugal, and whether the reported iodine supplements intake impacted on adverse obstetric and neonatal outcomes. DESIGN AND METHODS Observational retrospective study on pregnant women who delivered or had a fetal loss in the Braga Hospital and had their pregnancies followed in Family Health Units. RESULTS The use of iodine supplements increased from 25% before the recommendation to 81% after the recommendation. This was mostly due to an increase in the use of supplements containing iodine only. Iodine supplementation was protective for the number of adverse obstetric outcomes (odds ratio (OR) = 0.791, P = 0.018) and for neonatal morbidities (OR = 0.528, P = 0.024) after controlling for relevant confounding variables. CONCLUSION The recommendation seems to have succeeded in implementing iodine supplementation during pregnancy. National prospective studies are now needed to evaluate the impact of iodine supplementation on maternal thyroid homeostasis and offspring psychomotor development and on whether the time of the beginning of iodine supplementation (how early during preconception or pregnancy) is relevant to consider.
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Affiliation(s)
- Maria Lopes-Pereira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Hospital de Braga, Braga, Portugal
| | - Anna Quialheiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Patrício Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nadine Correia Santos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associate Laboratory, Braga/Guimarães, Portugal
- ACMP5 – Associação Centro de Medicina P5 (P5), School of Medicine, University of Minho, Braga, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana Goios
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ivone Carvalho
- Newborn Screening, Metabolism & Genetics Unit, National Institute of Health Dr Ricardo Jorge, Porto, Portugal
| | - Tim I M Korevaar
- Academic Center for Thyroid Diseases, Erasmus MC, Rotterdam, the Netherlands
- Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Laura Vilarinho
- Newborn Screening, Metabolism & Genetics Unit, National Institute of Health Dr Ricardo Jorge, Porto, Portugal
| | - Joana Almeida Palha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Clinical Academic Center-Braga (2CA-B), Braga, Portugal
- Correspondence should be addressed to J A Palha:
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13
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Barreira-Silva P, Melo-Miranda R, Nobrega C, Roque S, Serre-Miranda C, Borges M, Armada G, de Sá Calçada D, Behar SM, Appelberg R, Correia-Neves M. IFNγ and iNOS-Mediated Alterations in the Bone Marrow and Thymus and Its Impact on Mycobacterium avium-Induced Thymic Atrophy. Front Immunol 2021; 12:696415. [PMID: 34987496 PMCID: PMC8721011 DOI: 10.3389/fimmu.2021.696415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 11/30/2021] [Indexed: 11/13/2022] Open
Abstract
Disseminated infection with the high virulence strain of Mycobacterium avium 25291 leads to progressive thymic atrophy. We previously showed that M. avium-induced thymic atrophy results from increased glucocorticoid levels that synergize with nitric oxide (NO) produced by interferon gamma (IFNγ) activated macrophages. Where and how these mediators act is not understood. We hypothesized that IFNγ and NO promote thymic atrophy through their effects on bone marrow (BM) T cell precursors and T cell differentiation in the thymus. We show that M. avium infection cause a reduction in the percentage and number of common lymphoid progenitors (CLP). Additionally, BM precursors from infected mice show an overall impaired ability to reconstitute thymi of RAGKO mice, in part due to IFNγ. Thymi from infected mice present an IFNγ and NO-driven inflammation. When transplanted under the kidney capsule of uninfected mice, thymi from infected mice are unable to sustain T cell differentiation. Finally, we observed increased thymocyte death via apoptosis after infection, independent of both IFNγ and iNOS; and a decrease on active caspase-3 positive thymocytes, which is not observed in the absence of iNOS expression. Together our data suggests that M. avium-induced thymic atrophy results from a combination of defects mediated by IFNγ and NO, including alterations in the BM T cell precursors, the thymic structure and the thymocyte differentiation.
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Affiliation(s)
- Palmira Barreira-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
- *Correspondence: Palmira Barreira-Silva, ; Margarida Correia-Neves,
| | - Rita Melo-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Claudia Nobrega
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Cláudia Serre-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Margarida Borges
- Research Unit on Applied Molecular Biosciences (UCIBIO)/Rede de Química e Tecnologia (REQUINTE), Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Gisela Armada
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Daniela de Sá Calçada
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
| | - Samuel M. Behar
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, United States
| | - Rui Appelberg
- Instituto de Investigação e Inovação em Saúde (i3S), Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC-Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B’s), PT Government Associate Laboratory, Braga, Portugal
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- *Correspondence: Palmira Barreira-Silva, ; Margarida Correia-Neves,
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Serre-Miranda C, Roque S, Barreira-Silva P, Nobrega C, Vieira N, Costa P, Palha JA, Correia-Neves M. Age-related sexual dimorphism on the longitudinal progression of blood immune cells in BALB/cByJ mice. J Gerontol A Biol Sci Med Sci 2021; 77:883-891. [PMID: 34741509 PMCID: PMC9071472 DOI: 10.1093/gerona/glab330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Indexed: 11/29/2022] Open
Abstract
The study of immune system aging is of relevance, considering its myriad of interactions and role in protecting and maintaining body homeostasis. While mouse models have been extensively used to study immune system aging, little is known on how the main immune populations progress over time and what is the impact of sex. To contribute to filling this gap, male and female BALB/cByJ mice were longitudinally evaluated, from 3 to 18 months old, for the main blood populations, assessed by flow cytometry. Using linear mixed-effect models, we observed that the percentages of neutrophils, monocytes, eosinophils, and total natural killer (NK) cells increase with aging, while those of B cells, T cells (including CD4+ and CD8+ subsets), and Ly6C+ NK cells decrease. Males present higher percentages of neutrophils and classical monocytes Ly6Chigh over time, while females present higher percentages of total T cells, both CD4+ and CD8+, eosinophils, and NK cells. Males and females display similar percentages of B cells, even though with opposite accelerated progressions over time. This study revealed that mouse models recapitulate what is observed in humans during aging: an overall proportional decrease in the adaptive and an increase in the innate immune cells. Additionally, it uncovers an age-related sexual dimorphism in the proportion of immune cells in circulation, further strengthening the need to explore the impact of sex when addressing immune system aging using mouse models.
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Affiliation(s)
- Cláudia Serre-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Palmira Barreira-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Claudia Nobrega
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Neide Vieira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Patrício Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana Almeida Palha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
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15
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Paredes AC, Costa P, Roque S, Fernandes S, Lopes M, Carvalho M, Mateus A, Almeida A, Pinto PR. Effectiveness of hypnosis for pain and health-related quality-of-life among people with hemophilia: Three-month outcomes of a randomized controlled pilot trial. Complement Ther Clin Pract 2021; 45:101486. [PMID: 34601386 DOI: 10.1016/j.ctcp.2021.101486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 09/07/2021] [Accepted: 09/27/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND AND PURPOSE Pain is a common condition among people with hemophilia (PWH), negatively impacting quality of life. However, effective treatment remains a challenge. This two-arm, parallel randomized controlled pilot trial aimed to examine the three-month effects of hypnosis intervention on clinical and psychosocial variables, and on the inflammatory profile of PWH. MATERIALS AND METHODS The study was conducted between January and October 2018, in a Reference Center for Congenital Coagulopathies. Adult (age ≥18) patients were randomized to experimental group (EG) or control group (CG). The EG received four weekly hypnosis sessions plus treatment-as-usual, and the CG maintained treatment-as-usual only. Outcomes were evaluated at one week and three months post-intervention and included pain, joint status, health-related quality of life (HRQoL), emotional state and inflammatory profile (leukocytes, C-reactive protein, cytokines). The randomization sequence was computer-generated, and allocation was concealed until enrolment. The outcome assessor was blind to allocation, but blinding of the participants was not possible due to the differences in procedure. RESULTS Twenty patients were randomized to EG (n = 10; 8 analyzed) or CG (n = 10; 10 analyzed). Two-way mixed ANOVA showed significant time × group interactions on pain interference with normal work and with relations with other people, and on perception of health status. The EG significantly improved in pain interference with normal work and perception of health status. There was no report of harm. CONCLUSION Hypnosis may be a promising intervention to manage hemophilia-related pain and promote HRQoL, with benefits lasting up to three months.
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Affiliation(s)
- Ana Cristina Paredes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS / 3B's - PT Government Associate Laboratory, Braga / Guimarães, Portugal
| | - Patrício Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS / 3B's - PT Government Associate Laboratory, Braga / Guimarães, Portugal; Faculty of Psychology and Education Sciences, University of Porto, Porto, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS / 3B's - PT Government Associate Laboratory, Braga / Guimarães, Portugal
| | - Susana Fernandes
- Congenital Coagulopathies Reference Centre, Department of Transfusion Medicine and Blood Bank, São João University Hospital Centre, Porto, Portugal
| | - Manuela Lopes
- Congenital Coagulopathies Reference Centre, Department of Transfusion Medicine and Blood Bank, São João University Hospital Centre, Porto, Portugal
| | - Manuela Carvalho
- Congenital Coagulopathies Reference Centre, Department of Transfusion Medicine and Blood Bank, São João University Hospital Centre, Porto, Portugal
| | - António Mateus
- Orthopedics and Trauma Department, São João University Hospital Centre, Porto, Portugal
| | - Armando Almeida
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS / 3B's - PT Government Associate Laboratory, Braga / Guimarães, Portugal
| | - Patrícia R Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS / 3B's - PT Government Associate Laboratory, Braga / Guimarães, Portugal.
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16
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Serre-Miranda C, Nobrega C, Roque S, Canto-Gomes J, Silva CS, Vieira N, Barreira-Silva P, Alves-Peixoto P, Cotter J, Reis A, Formigo M, Sarmento H, Pires O, Carvalho A, Petrovykh DY, Diéguez L, Sousa JC, Sousa N, Capela C, Palha JA, Cunha PG, Correia-Neves M. Performance assessment of 11 commercial serological tests for SARS-CoV-2 on hospitalised COVID-19 patients. Int J Infect Dis 2021; 104:661-669. [PMID: 33484862 PMCID: PMC7817432 DOI: 10.1016/j.ijid.2021.01.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Commercial availability of serological tests to evaluate immunoglobulins (Ig) targeting severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has grown exponentially since the start of the coronavirus disease 2019 (COVID-19) outbreak. Thorough validation of these tests is important before use as epidemiological tools to infer seroprevalence in specific populations and as diagnostic tools to complement molecular approaches (e.g., quantitative reverse transcription-polymerase chain reaction). METHODS Commercial serological tests from 11 suppliers were assayed side-by-side using 126 samples from SARS-CoV-2-infected inpatients and 36 from healthy and HIV-infected individuals. RESULTS The majority of the tests assayed have >95% specificity. For the sensitivity calculation, samples were stratified by days since symptoms onset; sensitivity peaks at 16-21 days for IgM and IgA (maximum 91.2%, Euroimmun) and, dependant on the test, at 16-21 or >21 days for IgG (maximum 94.1%, Snibe). Data from semiquantitative tests show that patients with a severe clinical presentation have lower levels of Ig targeting SARS-CoV-2 at <10 days since symptoms onset and higher levels at >21 days, compared to patients with a non-severe presentation. CONCLUSIONS This study highlights the heterogeneity of sensitivity and generally high specificity of the serological tests and establishes a basis for their usefulness to complement diagnostic techniques and population seroprevalence studies.
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Affiliation(s)
- C Serre-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - C Nobrega
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - S Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - J Canto-Gomes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - C S Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - N Vieira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - P Barreira-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - P Alves-Peixoto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - J Cotter
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Senhora da Oliveira Hospital, Guimarães, Portugal
| | - A Reis
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Senhora da Oliveira Hospital, Guimarães, Portugal
| | - M Formigo
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Senhora da Oliveira Hospital, Guimarães, Portugal
| | - H Sarmento
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Senhora da Oliveira Hospital, Guimarães, Portugal
| | - O Pires
- Hospital of Braga, Braga, Portugal
| | - A Carvalho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; Hospital of Braga, Braga, Portugal
| | - D Y Petrovykh
- International Iberian Nanotechnology Laboratory (INL), Braga, Portugal
| | - L Diéguez
- International Iberian Nanotechnology Laboratory (INL), Braga, Portugal
| | - J C Sousa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - N Sousa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; Clinical Academic Center, Braga, Portugal
| | - C Capela
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; Hospital of Braga, Braga, Portugal
| | - J A Palha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; Clinical Academic Center, Braga, Portugal
| | - P G Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Senhora da Oliveira Hospital, Guimarães, Portugal
| | - M Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; Clinical Academic Center, Braga, Portugal.
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17
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Lopes-Pereira M, Roque S, Costa P, Quialheiro A, Santos NC, Goios A, Vilarinho L, Correia-Neves M, Palha JA. Impact of iodine supplementation during preconception, pregnancy and lactation on maternal thyroid homeostasis and offspring psychomotor development: protocol of the IodineMinho prospective study. BMC Pregnancy Childbirth 2020; 20:693. [PMID: 33187482 PMCID: PMC7664061 DOI: 10.1186/s12884-020-03376-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 10/28/2020] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Iodine deficiency is the most common cause of preventable brain harm and cognitive impairment in children. Portuguese women of childbearing age, pregnant women and their progeny were shown to have inadequate iodine intake. Consequently, the Portuguese Health Authorities have recommended a daily supplementation with 150-200 µg iodine in preconception, pregnancy, and lactation. The IodineMinho study intends to evaluate whether (i) this recommendation impacted on the prevalence of iodine deficiency in pregnant women from the Minho region of Portugal, (ii) the time of initiation of iodine supplementation (if any) influences the serum levels of thyroid hormones at several intervals during pregnancy and (iii) there are serum thyroid-hormone parameters in the 1st trimester of pregnancy that predict psychomotor development of the child at 18 months of age. METHODS Most Portuguese women are followed throughout pregnancy in community Family Health Units, where family physicians may choose to follow the National recommendation or other, concerning iodine sufficiency. This study will recruit women (N = 304) who intend to become pregnant or are already pregnant from 10 representative Units. Physician's approach and prescriptions, sociodemographic, nutrition and clinical information will be obtained at baseline and throughout pregnancy. To evaluate endocrine function, blood and urine samples will be collected at recruitment, once in each trimester of pregnancy, at delivery and 3 months after delivery. Breastmilk samples will be collected for iodine and energy content analysis. Children will be evaluated for psychomotor development at 18 months. Maternal thyroid volume will be evaluated by ultrasound scan at baseline, in the 3rd trimester and at 3 months after delivery. DISCUSSION Iodine deficiency early during development precludes children from achieving full intellectual capabilities. This protocol describes a study that is innovative and unique in its detailed and comprehensive evaluation of maternal and child endocrine and psychomotor parameters. By evaluating the effectiveness of the iodine supplementation recommendation, it will contribute to the public health systems' efforts to provide excellence in maternal and infant care. TRIAL REGISTRATION ClinicalTrials.gov, NCT04288531 . Registered 28 February 2020-Retrospectively registered.
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Affiliation(s)
- Maria Lopes-Pereira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimaraes, Portugal
- Hospital de Braga, Braga, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimaraes, Portugal
| | - Patrício Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimaraes, Portugal
| | - Anna Quialheiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimaraes, Portugal
| | - Nadine Correia Santos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimaraes, Portugal
| | - Ana Goios
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimaraes, Portugal
| | - Laura Vilarinho
- Newborn Screening, Metabolism & Genetics Unit, National Institute of Health Dr Ricardo Jorge, Porto, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimaraes, Portugal
| | - Joana Almeida Palha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal.
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimaraes, Portugal.
- Clinical Academic Center, Braga, Portugal.
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18
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Serre-Miranda C, Roque S, Santos NC, Costa P, Sousa N, Palha JA, Correia-Neves M. Cognition Is Associated With Peripheral Immune Molecules in Healthy Older Adults: A Cross-Sectional Study. Front Immunol 2020; 11:2045. [PMID: 32983153 PMCID: PMC7493640 DOI: 10.3389/fimmu.2020.02045] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 07/28/2020] [Indexed: 12/14/2022] Open
Abstract
Background Cognition in the elderly is heterogeneous. Senescence of the immune system is increasingly considered as a potential player in cognitive performance. We explored here the interplay between cognitive performance and peripheral immune molecules in healthy older individuals. Methods A cross-sectional study of clinically well characterized senior healthy individuals (120; 51-87 years old) previously clustered as "Good" and "Poor" performers based on established tests that evaluate memory and executive function. A plasma concentration of 30 immune molecules was assessed by multiplex analysis and correlated with parameters of cognitive performance. Results Participants with worse cognitive performance ("Poor") exhibited increased concentrations of IL-1β, IL-8, IL-13, and tumor necrosis factor (TNF) when compared to individuals with a better cognitive performance ("Good"). The cognitive dimensions memory and executive function, when considered separately, displayed a negative association with several immune molecules (IL-1β, IL-1RA, IL-6, IL-13, IP-10, and TNF with memory and only IL-1β with executive function), even controlling for age, sex, years of formal education, mood, and use of anti-inflammatory drugs. Regression analysis showed that several of these molecules (IL-1β, IL-6, IL-8, and IL-13) contribute to predicting whether an individual belongs to the "Good" or "Poor" cognitive performance group. Conclusion These results strengthen the hypothesis that increased concentrations of peripheral immune molecules, like IL-1β, are associated with worse cognitive performance in senior healthy individuals. It further highlights that some poorly studied immune molecules should be considered in the context of cognitive aging, such as IL-13, here revealed as a new player in such interaction.
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Affiliation(s)
- Cláudia Serre-Miranda
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nadine Correia Santos
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Clinical Academic Center - Braga, Braga, Portugal
| | - Patrício Costa
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Clinical Academic Center - Braga, Braga, Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Clinical Academic Center - Braga, Braga, Portugal
| | - Joana Almeida Palha
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Briantais A, Biancamaria C, Sales N, Roque S, Favaro T, Ebbo M, Schleinitz N, Harlé J, Bernit E. Hépatite aiguë sévère récidivante sous déférasirox chez un patient porteur d’une stomatocytose. Rev Med Interne 2018. [DOI: 10.1016/j.revmed.2018.10.185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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das Neves SP, Serre-Miranda C, Nobrega C, Roque S, Cerqueira JJ, Correia-Neves M, Marques F. Immune Thymic Profile of the MOG-Induced Experimental Autoimmune Encephalomyelitis Mouse Model. Front Immunol 2018; 9:2335. [PMID: 30369926 PMCID: PMC6194318 DOI: 10.3389/fimmu.2018.02335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/19/2018] [Indexed: 12/14/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic, immune-mediated, demyelinating disease that affects the neurons of the central nervous system. Activated T cells, specific for myelin epitopes, cross the brain barriers, and react against the myelin sheath, leading to demyelination. Since T cells are generated within the thymus, here we explored, in mice, the alterations occurring in this organ throughout the different phases of the disease. We induced experimental autoimmune encephalomyelitis (EAE) in C57BL/6 females and sacrifice them at the onset (day 16) and chronic phases of disease (day 23), along with non-induced controls. We observed thymic atrophy in EAE mice at the onset that remained until the chronic phase of disease. This atrophy was associated with a preferential loss of the CD4+CD8+ double positive thymocytes, an intermediate population between the more immature CD4−CD8− double negative and the most mature single positive thymocytes. This was accompanied by an increase in the thymic medullary/cortical ratio and by an altered expression levels of genes important for T cell survival. During the chronic phase, the thymi remained atrophic, but reacquired the normal proportion of the main four thymocyte populations and the normal medullary/cortical ratio. Importantly, at the onset phase, and accompanying these thymic alterations, EAE animals presented an increased percentage of demyelinating lesion area in the cerebellum, and an increased expression of interferon gamma (Ifng), interleukin (Il) 12a, and Il17a. This study suggests dynamic thymic alterations occurring in response to EAE, from the induction to the chronic phase, that might help to elucidate the MS pathophysiology.
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Affiliation(s)
- Sofia P das Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cláudia Serre-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Claudia Nobrega
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João J Cerqueira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Clinical Academic Center-Braga, Braga, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Fernanda Marques
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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21
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Grilo C, Lucas PM, Fernández‐Gil A, Seara M, Costa G, Roque S, Rio‐Maior H, Nakamura M, Álvares F, Petrucci‐Fonseca F, Revilla E. Refuge as major habitat driver for wolf presence in human‐modified landscapes. Anim Conserv 2018. [DOI: 10.1111/acv.12435] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- C. Grilo
- Departamento de Biología de la Conservación Estación Biológica de Doñana (EBD‐CSIC) Sevilla España
| | - P. M. Lucas
- Departamento de Biología de la Conservación Estación Biológica de Doñana (EBD‐CSIC) Sevilla España
- Department of Wildlife Conservation Institute of Nature Conservation PAS Kraków Poland
| | - A. Fernández‐Gil
- Departamento de Biología de la Conservación Estación Biológica de Doñana (EBD‐CSIC) Sevilla España
| | - M. Seara
- CE3C – Centre for Ecology, Evolution and Environmental Changes Faculdade de Ciências Universidade de Lisboa Campo Grande Lisbon Portugal
| | - G. Costa
- Grupo Lobo Departamento de Biologia Animal Faculdade de Ciências da Universidade de Lisboa Edifício C2 Campo Grande Lisbon Portugal
- Bioinsight – Environmental Services Odivelas Portugal
| | - S. Roque
- CE3C – Centre for Ecology, Evolution and Environmental Changes Faculdade de Ciências Universidade de Lisboa Campo Grande Lisbon Portugal
- Grupo Lobo Departamento de Biologia Animal Faculdade de Ciências da Universidade de Lisboa Edifício C2 Campo Grande Lisbon Portugal
| | - H. Rio‐Maior
- CIBIO/InBIO Centro de Investigação em Biodiversidade e Recursos Genéticos da Universidade do Porto Vairão Portugal
- Departamento de Biologia Faculdade de Ciências Universidade do Porto Porto Portugal
| | - M. Nakamura
- CIBIO/InBIO Centro de Investigação em Biodiversidade e Recursos Genéticos da Universidade do Porto Vairão Portugal
| | - F. Álvares
- CIBIO/InBIO Centro de Investigação em Biodiversidade e Recursos Genéticos da Universidade do Porto Vairão Portugal
| | - F. Petrucci‐Fonseca
- CE3C – Centre for Ecology, Evolution and Environmental Changes Faculdade de Ciências Universidade de Lisboa Campo Grande Lisbon Portugal
- Grupo Lobo Departamento de Biologia Animal Faculdade de Ciências da Universidade de Lisboa Edifício C2 Campo Grande Lisbon Portugal
| | - E. Revilla
- Departamento de Biología de la Conservación Estación Biológica de Doñana (EBD‐CSIC) Sevilla España
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Miranda A, Roque S, Serre-Miranda C, Pêgo JM, Correia-Pinto J. Inflammatory response and long-term behavioral assessment after neonatal CO 2-pneumothorax: study in a rodent model. J Pediatr Surg 2018; 53:1318-1325. [PMID: 28916046 DOI: 10.1016/j.jpedsurg.2017.08.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 08/12/2017] [Accepted: 08/14/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Carbon-dioxide (CO2)-pneumothorax during minimally invasive surgery induces well-known metabolic changes. However, little is known about its impact on the central nervous system. The aim of this work is to evaluate the acute impact of CO2-pneumothorax over central cytokine response and its long-term effect on animal behavior. METHODS This is an experimental study where neonatal Sprague-Dawley rats are submitted to CO2-pneumothorax. Peripheral and central cytokine response was evaluated 24h after insufflation, and peripheral immune cell phenotyping was evaluated 24h and 4weeks post-insufflation. Progenitor cell survival was evaluated in the hippocampal dentate gyrus, and the behavioral analysis was performed in adulthood to test cognition, anxious-like, and depressive-like behavior. RESULTS Significantly increased IL-10 levels were observed in the cerebrospinal-fluid (CSF) of animals submitted to CO2-pneumothorax, while no differences were found in serum. Regarding pro-inflammatory cytokines, no differences were observed in the periphery or centrally. CO2-pneumothorax event did not alter the survival of newborn cells in the hippocampal dentate gyrus, and no impact on long-term behavior was observed. CONCLUSIONS Neonatal animals submitted to CO2-pneumothorax present acutely increased CSF IL-10 levels. The CO2-pneumothorax seems to result in no significant outcome over neurodevelopment as no functional behavioral alterations were observed in adulthood.
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Affiliation(s)
- Alice Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cláudia Serre-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - José Miguel Pêgo
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
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Conneely M, Roque S, McWilliams T, Lunny D, Cheah Y, Bjorklund M, McLean W, Hickerson R. 499 A tension-based skin explant model. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Miranda A, Roque S, Pêgo JM, Correia-Pinto J. Neurodevelopment impact of CO 2-pneumoperitoneum in neonates: experimental study in a rat model. J Surg Res 2017; 221:293-303. [PMID: 29229141 DOI: 10.1016/j.jss.2017.09.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 07/10/2017] [Accepted: 09/12/2017] [Indexed: 11/17/2022]
Abstract
BACKGROUND Laparoscopy is becoming more common in neonates. However, concerns remain about the impact of the carbon-dioxide (CO2)-insufflation over the neonatal brain. We aim to evaluate the peripheral (serum) and central (cerebrospinal fluid [CSF]) cytokine response after neonatal CO2-pneumoperitoneum and its impact over neurodevelopmental milestones acquisition and long-term behavioral outcomes. MATERIALS AND METHODS Rats were subjected to a systematic assessment of neurodevelopmental milestones between postnatal day 1 (PND 1) and PND 21. At PND 10, neonatal rats were anesthetized, mechanically ventilated, and exposed to different pressures and times of abdominal CO2-insufflation. Immediately after pneumoperitoneum, corticosterone was analyzed in serum. Twenty-four hours after intervention, serum and CSF were collected to assess inflammatory response (interleukin [IL]-10, IL-1β, tumor necrosis factor [TNF]-α, and interferon [IFN]-γ). In adulthood, animals from each group were submitted to several tests to assess different behavioral domains (locomotion, anxiety, mood, and cognition). RESULTS The antiinflammatory cytokine IL-10 was significantly increased in CSF in CO2-insufflated groups, with no other significant changes in the other biomarkers. Acquisition of neurodevelopmental milestones was maintained in all studied groups. No significant differences were observed in adult behavior in the different CO2-insufflation conditions. CONCLUSIONS Neonatal CO2-pneumoperitoneum does not seem to have any negative impact on neurodevelopment or induce behavioral alterations in adulthood. Minimally invasive surgery results in a central antiinflammatory profile, and further studies on the functional consequences of these phenomena are needed.
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Affiliation(s)
- Alice Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal.
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - José M Pêgo
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal; Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
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25
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Lobo-Silva D, Carriche GM, Castro AG, Roque S, Saraiva M. Interferon-β regulates the production of IL-10 by toll-like receptor-activated microglia. Glia 2017; 65:1439-1451. [PMID: 28617991 PMCID: PMC7165667 DOI: 10.1002/glia.23172] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 12/28/2022]
Abstract
Pattern recognition receptors, such as toll‐like receptors (TLRs), perceive tissue alterations and initiate local innate immune responses. Microglia, the resident macrophages of the brain, encode TLRs which primary role is to protect the tissue integrity. However, deregulated activation of TLRs in microglia may lead to chronic neurodegeneration. This double role of microglial responses is often reported in immune‐driven neurologic diseases, as in multiple sclerosis (MS). Consequently, strategies to manipulate microglia inflammatory responses may help to ameliorate disease progression. In this context, the anti‐inflammatory cytokine interleukin (IL)‐10 appears as an attractive target. In this study, we investigated how activation of microglia by TLRs with distinct roles in MS impacts on IL‐10 production. We found that activation of TLR2, TLR4, and TLR9 induced the production of IL‐10 to a greater extent than activation of TLR3. This was surprising as both TLR3 and IL‐10 play protective roles in animal models of MS. Interestingly, combination of TLR3 triggering with the other TLRs, enhanced IL‐10 through the modulation of its transcription, via interferon (IFN)‐β, but independently of IL‐27. Thus, in addition to the modulation of inflammatory responses of the periphery described for the axis TLR3/IFN‐β, we now report a direct modulation of microglial responses. We further show that the presence of IFN‐γ in the microenvironment abrogated the modulation of IL‐10 by TLR3, whereas that of IL‐17 had no effect. Considering the therapeutic application of IFN‐β in MS, our study bears important implications for the understanding of the cytokine network regulating microglia responses in this setting.
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Affiliation(s)
- Diogo Lobo-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Guilhermina M Carriche
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - A Gil Castro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Margarida Saraiva
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
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26
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Nakamura M, Godinho R, Rio-Maior H, Roque S, Kaliontzopoulou A, Bernardo J, Castro D, Lopes S, Petrucci-Fonseca F, Álvares F. Evaluating the predictive power of field variables for species and individual molecular identification on wolf noninvasive samples. EUR J WILDLIFE RES 2017. [DOI: 10.1007/s10344-017-1112-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Lobo-Silva D, Carriche GM, Castro AG, Roque S, Saraiva M. Balancing the immune response in the brain: IL-10 and its regulation. J Neuroinflammation 2016; 13:297. [PMID: 27881137 PMCID: PMC5121946 DOI: 10.1186/s12974-016-0763-8] [Citation(s) in RCA: 247] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 11/11/2016] [Indexed: 12/15/2022] Open
Abstract
Background The inflammatory response is critical to fight insults, such as pathogen invasion or tissue damage, but if not resolved often becomes detrimental to the host. A growing body of evidence places non-resolved inflammation at the core of various pathologies, from cancer to neurodegenerative diseases. It is therefore not surprising that the immune system has evolved several regulatory mechanisms to achieve maximum protection in the absence of pathology. Main body The production of the anti-inflammatory cytokine interleukin (IL)-10 is one of the most important mechanisms evolved by many immune cells to counteract damage driven by excessive inflammation. Innate immune cells of the central nervous system, notably microglia, are no exception and produce IL-10 downstream of pattern recognition receptors activation. However, whereas the molecular mechanisms regulating IL-10 expression by innate and acquired immune cells of the periphery have been extensively addressed, our knowledge on the modulation of IL-10 expression by central nervous cells is much scattered. This review addresses the current understanding on the molecular mechanisms regulating IL-10 expression by innate immune cells of the brain and the implications of IL-10 modulation in neurodegenerative disorders. Conclusion The regulation of IL-10 production by central nervous cells remains a challenging field. Answering the many remaining outstanding questions will contribute to the design of targeted approaches aiming at controlling deleterious inflammation in the brain.
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Affiliation(s)
- Diogo Lobo-Silva
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's PT Government Associate Laboratory, Braga, Portugal
| | - Guilhermina M Carriche
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - A Gil Castro
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's PT Government Associate Laboratory, Braga, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's PT Government Associate Laboratory, Braga, Portugal
| | - Margarida Saraiva
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal. .,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.
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28
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Monteiro S, Ferreira FM, Pinto V, Roque S, Morais M, de Sá-Calçada D, Mota C, Correia-Neves M, Cerqueira JJ. Absence of IFNγ promotes hippocampal plasticity and enhances cognitive performance. Transl Psychiatry 2016; 6:e707. [PMID: 26731444 PMCID: PMC5073154 DOI: 10.1038/tp.2015.194] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 10/05/2015] [Indexed: 01/31/2023] Open
Abstract
Cognitive functioning can be differentially modulated by components of the immune system. Interferon-γ (IFNγ) is a pro-inflammatory cytokine whose production is altered in many conditions displaying some degree of cognitive deficits, although its role in cognitive functioning is still unclear. Here we show that the absence of IFNγ selectively enhances cognitive behaviours in tasks in which the hippocampus is implicated. Moreover, the absence of IFNγ leads to volumetric and cell density changes that are restricted to the dorsal part of the hippocampus. In the dorsal hippocampus, the absence of this pro-inflammatory cytokine leads to an increase in the numbers of newly born neurons in the subgranular zone of the dentate gyrus (DG), an adult neurogenic niche known to support learning and memory, and to an enlargement of the dendritic arborization of DG granule and cornu ammonis (CA)1 pyramidal neurons. Moreover, it also modestly impacts synaptic plasticity, by decreasing the paired-pulse facilitation in the Schaffer collateral to CA1 pyramidal cell synapses. Taken together, our results provide evidence that IFNγ is a negative regulator of hippocampal functioning, as its absence positively impacts on dorsal hippocampus structure, cell density, neuronal morphology and synaptic plasticity. Importantly, these neuroplastic changes are associated with improved performance in learning and memory tasks. Therefore, blockage of the IFNγ signalling may present as promising therapeutic targets for the treatment of inflammation-associated cognitive dysfunction.
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Affiliation(s)
- S Monteiro
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal,Life and Health Sciences Research Institute, 3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - F M Ferreira
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal,Life and Health Sciences Research Institute, 3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - V Pinto
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal,Life and Health Sciences Research Institute, 3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - S Roque
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal,Life and Health Sciences Research Institute, 3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - M Morais
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal,Life and Health Sciences Research Institute, 3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - D de Sá-Calçada
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal,Life and Health Sciences Research Institute, 3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - C Mota
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal,Life and Health Sciences Research Institute, 3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - M Correia-Neves
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal,Life and Health Sciences Research Institute, 3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - J J Cerqueira
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal,Life and Health Sciences Research Institute, 3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal,Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Campus de Gualtar, ICVS/3B's - PT Government Associate Laboratory, 4710-057 Braga, Portugal. E-mail:
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de Sá-Calçada D, Roque S, Branco C, Monteiro S, Cerqueira-Rodrigues B, Sousa N, Palha JA, Correia-Neves M. Exploring Female Mice Interstrain Differences Relevant for Models of Depression. Front Behav Neurosci 2015; 9:335. [PMID: 26696854 PMCID: PMC4674561 DOI: 10.3389/fnbeh.2015.00335] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/19/2015] [Indexed: 12/31/2022] Open
Abstract
Depression is an extremely heterogeneous disorder. Diverse molecular mechanisms have been suggested to underlie its etiology. To understand the molecular mechanisms responsible for this complex disorder, researchers have been using animal models extensively, namely mice from various genetic backgrounds and harboring distinct genetic modifications. The use of numerous mouse models has contributed to enrich our knowledge on depression. However, accumulating data also revealed that the intrinsic characteristics of each mouse strain might influence the experimental outcomes, which may justify some conflicting evidence reported in the literature. To further understand the impact of the genetic background, we performed a multimodal comparative study encompassing the most relevant parameters commonly addressed in depression, in three of the most widely used mouse strains: Balb/c, C57BL/6, and CD-1. Moreover, female mice were selected for this study taken into account the higher prevalence of depression in women and the fewer animal studies using this gender. Our results show that Balb/c mice have a more pronounced anxious-like behavior than CD-1 and C57BL/6 mice, whereas C57BL/6 animals present the strongest depressive-like trait. Furthermore, C57BL/6 mice display the highest rate of proliferating cells and brain-derived neurotrophic factor (Bdnf) expression levels in the hippocampus, while hippocampal dentate granular neurons of Balb/c mice show smaller dendritic lengths and fewer ramifications. Of notice, the expression levels of inducible nitric oxide synthase (iNos) predict 39.5% of the depressive-like behavior index, which suggests a key role of hippocampal iNOS in depression. Overall, this study reveals important interstrain differences in several behavioral dimensions and molecular and cellular parameters that should be considered when preparing and analyzing experiments addressing depression using mouse models. It further contributes to the literature by revealing the predictive value of hippocampal iNos expression levels in depressive-like behavior, irrespectively of the mouse strain.
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Affiliation(s)
- Daniela de Sá-Calçada
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of MinhoBraga, Portugal
- ICVS/3B's Research Group – PT Government Associate LaboratoryBraga, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of MinhoBraga, Portugal
- ICVS/3B's Research Group – PT Government Associate LaboratoryBraga, Portugal
| | - Carlos Branco
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of MinhoBraga, Portugal
- ICVS/3B's Research Group – PT Government Associate LaboratoryBraga, Portugal
| | - Susana Monteiro
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of MinhoBraga, Portugal
- ICVS/3B's Research Group – PT Government Associate LaboratoryBraga, Portugal
| | - Bruno Cerqueira-Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of MinhoBraga, Portugal
- ICVS/3B's Research Group – PT Government Associate LaboratoryBraga, Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of MinhoBraga, Portugal
- ICVS/3B's Research Group – PT Government Associate LaboratoryBraga, Portugal
| | - Joana A. Palha
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of MinhoBraga, Portugal
- ICVS/3B's Research Group – PT Government Associate LaboratoryBraga, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of MinhoBraga, Portugal
- ICVS/3B's Research Group – PT Government Associate LaboratoryBraga, Portugal
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30
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Monteiro S, Roque S, de Sá-Calçada D, Sousa N, Correia-Neves M, Cerqueira JJ. An efficient chronic unpredictable stress protocol to induce stress-related responses in C57BL/6 mice. Front Psychiatry 2015; 6:6. [PMID: 25698978 PMCID: PMC4313595 DOI: 10.3389/fpsyt.2015.00006] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Accepted: 01/13/2015] [Indexed: 11/13/2022] Open
Abstract
Exposure to chronic stress can have broad effects on health ranging from increased predisposition for neuropsychiatric disorders to deregulation of immune responses. The chronic unpredictable stress (CUS) protocol has been widely used to study the impact of stress exposure in several animal models and consists in the random, intermittent, and unpredictable exposure to a variety of stressors during several weeks. CUS has consistently been shown to induce behavioral and immunological alterations typical of the chronic stress-response. Unfortunately C57BL/6 mice, one of the most widely used mouse strains, due to the great variety of genetically modified lines, seem to be resistant to the commonly used 4-week-long CUS protocol. The definition of an alternative CUS protocol allowing the use of C57BL/6 mice in chronic stress experiments is a need. Here, we show that by extending the CUS protocol to 8 weeks is possible to induce a chronic stress-response in C57BL/6 mice, as revealed by abrogated body weight gain, increased adrenals weight, and an overactive hypothalamic-pituitary-adrenal axis with increased levels of serum corticosterone. Moreover, we also observed stress-associated behavioral alterations, including the potentiation of anxious-like and depressive-like behaviors and a reduction of exploratory behavior, as well as subtle stress-related changes in the cell population of the thymus and of the spleen. The present protocol for C57BL/6 mice consistently triggers the spectrum of CUS-induced changes observed in rats and, thus, will be highly useful to researchers that need to use this particular mouse strain as an animal model of neuropsychiatric disorders and/or immune deregulation related to CUS.
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Affiliation(s)
- Susana Monteiro
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's Research Group - PT Government Associate Laboratory , Braga , Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's Research Group - PT Government Associate Laboratory , Braga , Portugal
| | - Daniela de Sá-Calçada
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's Research Group - PT Government Associate Laboratory , Braga , Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's Research Group - PT Government Associate Laboratory , Braga , Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's Research Group - PT Government Associate Laboratory , Braga , Portugal
| | - João José Cerqueira
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's Research Group - PT Government Associate Laboratory , Braga , Portugal
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31
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Serre-Miranda C, Roque S, Santos NC, Portugal-Nunes C, Costa P, Palha JA, Sousa N, Correia-Neves M. Effector memory CD4(+) T cells are associated with cognitive performance in a senior population. Neurol Neuroimmunol Neuroinflamm 2014; 2:e54. [PMID: 25566544 PMCID: PMC4277304 DOI: 10.1212/nxi.0000000000000054] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 11/18/2014] [Indexed: 01/24/2023]
Abstract
Objective: Immunosenescence and cognitive decline are common markers of the aging process. Taking into consideration the heterogeneity observed in aging processes and the recently described link between lymphocytes and cognition, we herein explored the possibility of an association between alterations in lymphocytic populations and cognitive performance. Methods: In a cohort of cognitively healthy adults (n = 114), previously characterized by diverse neurocognitive/psychological performance patterns, detailed peripheral blood immunophenotyping of both the innate and adaptive immune systems was performed by flow cytometry. Results: Better cognitive performance was associated with lower numbers of effector memory CD4+ T cells and higher numbers of naive CD8+ T cells and B cells. Furthermore, effector memory CD4+ T cells were found to be predictors of general and executive function and memory, even when factors known to influence cognitive performance in older individuals (e.g., age, sex, education, and mood) were taken into account. Conclusions: This is the first study in humans associating specific phenotypes of the immune system with distinct cognitive performance in healthy aging.
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Affiliation(s)
- Cláudia Serre-Miranda
- Life and Health Sciences Research Institute (ICVS) (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), School of Health Sciences, University of Minho, Braga; ICVS/3B's - PT Government Associate Laboratory (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), Braga/Guimarães; and Clinical Academic Center-Braga (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S.), Braga, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS) (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), School of Health Sciences, University of Minho, Braga; ICVS/3B's - PT Government Associate Laboratory (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), Braga/Guimarães; and Clinical Academic Center-Braga (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S.), Braga, Portugal
| | - Nadine Correia Santos
- Life and Health Sciences Research Institute (ICVS) (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), School of Health Sciences, University of Minho, Braga; ICVS/3B's - PT Government Associate Laboratory (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), Braga/Guimarães; and Clinical Academic Center-Braga (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S.), Braga, Portugal
| | - Carlos Portugal-Nunes
- Life and Health Sciences Research Institute (ICVS) (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), School of Health Sciences, University of Minho, Braga; ICVS/3B's - PT Government Associate Laboratory (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), Braga/Guimarães; and Clinical Academic Center-Braga (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S.), Braga, Portugal
| | - Patrício Costa
- Life and Health Sciences Research Institute (ICVS) (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), School of Health Sciences, University of Minho, Braga; ICVS/3B's - PT Government Associate Laboratory (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), Braga/Guimarães; and Clinical Academic Center-Braga (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S.), Braga, Portugal
| | - Joana Almeida Palha
- Life and Health Sciences Research Institute (ICVS) (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), School of Health Sciences, University of Minho, Braga; ICVS/3B's - PT Government Associate Laboratory (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), Braga/Guimarães; and Clinical Academic Center-Braga (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S.), Braga, Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute (ICVS) (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), School of Health Sciences, University of Minho, Braga; ICVS/3B's - PT Government Associate Laboratory (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), Braga/Guimarães; and Clinical Academic Center-Braga (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S.), Braga, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS) (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), School of Health Sciences, University of Minho, Braga; ICVS/3B's - PT Government Associate Laboratory (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S., M.C.-N.), Braga/Guimarães; and Clinical Academic Center-Braga (C.S.-M., S.R., N.C.S., C.P.-N., P.C., J.A.P., N.S.), Braga, Portugal
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Miranda C, Roque S, Santos N, Portugal-nunes C, Costa P, Palha J, Sousa N, Correia-neves M. Cognitive performance among older individuals associated with the peripheral effector memory CD4+ T cells. J Neuroimmunol 2014. [DOI: 10.1016/j.jneuroim.2014.08.545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Donkeng Donfack VF, Roque S, Trigo G, Tsouh Fokou PV, Yamthe Tchokouaha LR, Tsabang N, Amvam Zollo PH, Correia-Neves M, Fekam Boyom F. Antimycobacterial activity of selected medicinal plants extracts from Cameroon. ACTA ACUST UNITED AC 2014. [DOI: 10.4314/ijbcs.v8i1.24] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Roque S, Mesquita AR, Palha JA, Sousa N, Correia-Neves M. The behavioral and immunological impact of maternal separation: a matter of timing. Front Behav Neurosci 2014; 8:192. [PMID: 24904343 PMCID: PMC4033212 DOI: 10.3389/fnbeh.2014.00192] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Accepted: 05/08/2014] [Indexed: 11/13/2022] Open
Abstract
Maternal separation (MS), an early life stressful event, has been demonstrated to trigger neuropsychiatric disorders later in life, in particular depression. Experiments using rodents subjected to MS protocols have been very informative for the establishment of this association. However, the mechanism by which MS leads to neuropsychiatric disorders is far from being understood. This is probably associated with the multifactorial nature of depression but also with the fact that different research MS protocols have been used (that vary on temporal windows and time of exposure to MS). In the present study, MS was induced in rats in two developmental periods: for 6 h per day for 14 days between postnatal days 2-15 (MS2-15) and 7-20 (MS7-20). These two periods were defined to differ essentially on the almost complete (MS2-15) or partial (MS7-20) overlap with the stress hypo-responsive period. Behavioral, immunological, and endocrine parameters, frequently associated with depressive-like behavior, were analyzed in adulthood. Irrespectively from the temporal window, both MS exposure periods led to increased sera corticosterone levels. However, only MS2-15 animals displayed depressive and anxious-like behaviors. Moreover, MS2-15 was also the only group presenting alterations in the immune system, displaying decreased percentage of CD8(+) T cells, increased spleen T cell CD4/CD8 ratio, and thymocytes with increased resistance to dexamethasone-induced cell death. A linear regression model performed to predict depressive-like behavior showed that both corticosterone levels and T cell CD4/CD8 ratio explained 37% of the variance observed in depressive-like behavior. Overall, these findings highlight the existence of "critical periods" for early life stressful events to exert programing effects on both central and peripheral systems, which are of relevance for distinct patterns of susceptibility to emotional disorders later in life.
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Affiliation(s)
- Susana Roque
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's - PT Government Associate Laboratory , Braga , Portugal
| | - Ana Raquel Mesquita
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho , Braga , Portugal ; Neuropsychophysiology Laboratory, Center for Research in Psychology (CIPsi), School of Psychology, University of Minho , Braga , Portugal
| | - Joana A Palha
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's - PT Government Associate Laboratory , Braga , Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's - PT Government Associate Laboratory , Braga , Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho , Braga , Portugal ; ICVS/3B's - PT Government Associate Laboratory , Braga , Portugal
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Nobrega C, Nunes-Alves C, Cerqueira-Rodrigues B, Roque S, Barreira-Silva P, Behar SM, Correia-Neves M. T cells home to the thymus and control infection. J Immunol 2013; 190:1646-58. [PMID: 23315077 DOI: 10.4049/jimmunol.1202412] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The thymus is a target of multiple pathogens. How the immune system responds to thymic infection is largely unknown. Despite being considered an immune-privileged organ, we detect a mycobacteria-specific T cell response in the thymus following dissemination of Mycobacterium avium or Mycobacterium tuberculosis. This response includes proinflammatory cytokine production by mycobacteria-specific CD4(+) and CD8(+) T cells, which stimulates infected cells and controls bacterial growth in the thymus. Importantly, the responding T cells are mature peripheral T cells that recirculate back to the thymus. The recruitment of these cells is associated with an increased expression of Th1 chemokines and an enrichment of CXCR3(+) mycobacteria-specific T cells in the thymus. Finally, we demonstrate it is the mature T cells that home to the thymus that most efficiently control mycobacterial infection. Although the presence of mature T cells in the thymus has been recognized for some time, to our knowledge, these data are the first to show that T cell recirculation from the periphery to the thymus is a mechanism that allows the immune system to respond to thymic infection. Maintaining a functional thymic environment is essential to maintain T cell differentiation and prevent the emergence of central tolerance to the invading pathogens.
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Affiliation(s)
- Claudia Nobrega
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, 4710-057 Braga, Portugal
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Pereira V, Salgado A, Oliveira J, Cerqueira S, Frias A, Fraga J, Roque S, Falcão A, Marques F, Neves N, Mano J, Reis R, Sousa N. In vivo biodistribution of carboxymethylchitosan/poly(amidoamine) dendrimer nanoparticles in rats. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511425567] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Carboxymethylchitosan/poly(amidoamine) (CMCht/PAMAM) dendrimer nanoparticles, comprised of a PAMAM dendrimer core grafted with chains of CMCht, have recently been proposed for intracellular drug delivery. In previous reports, these nanoparticles had lower levels of cytotoxicity when compared with traditional dendrimers. In this study, the short-term in vivo biodistribution of fluorescein isothiocyanate (FITC)-labeled CMCht/PAMAM dendrimer nanoparticles after intravenous (IV) injections in Wistar Han rats was determined. The brain, liver, kidney, and lung were collected at 24, 48, and 72 h after injection and stained with phalloidin–tetramethylrhodamine isothiocyanate (TRITC, red) and 4′,6-diamidino-2-phenylindole dihydrochloride (DAPI, blue) to trace the nanoparticles within these tissues. The liver, kidney, and lung were also stained for hematoxylin and eosin to assess any morphological alterations of these organs. CMCht/PAMAM dendrimer nanoparticles were observed within the vascular space and parenchyma of liver, kidney, and lung and in the choroid plexus, after each injection period. No particles were observed in the brain parenchyma, nor any apparent deleterious histological changes were observed within these organs. The CMCht/PAMAM dendrimer nanoparticles were stable in circulation for a period of up to 72 h, targeting the main organs/systems through internalization by the cells present in their parenchyma. These results provide positive indicators to their potential use in the future as intracellular drug delivery systems.
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Affiliation(s)
- V.H. Pereira
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - A.J. Salgado
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - J.M. Oliveira
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
| | - S.R. Cerqueira
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
| | - A.M. Frias
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
| | - J.S. Fraga
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - S. Roque
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - A.M. Falcão
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - F. Marques
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - N.M. Neves
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
| | - J.F. Mano
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
| | - R.L. Reis
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
| | - N. Sousa
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B’s, PT Government Associated Laboratory, Braga/Guimarães, Portugal
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Roque S, Oliveira TG, Nobrega C, Barreira-Silva P, Nunes-Alves C, Sousa N, Palha JA, Correia-Neves M. Interplay between Depressive-Like Behavior and the Immune System in an Animal Model of Prenatal Dexamethasone Administration. Front Behav Neurosci 2011; 5:4. [PMID: 21344016 PMCID: PMC3036954 DOI: 10.3389/fnbeh.2011.00004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Accepted: 01/19/2011] [Indexed: 01/29/2023] Open
Abstract
Glucocorticoids, namely dexamethasone, are prescribed during late gestation in pregnancies at risk of originating premature newborns, to promote fetal lung maturation. However, adverse early life events have been reported to induce long-lasting changes in the immune and central nervous systems. The accumulating evidence on bidirectional interactions between both systems in psychiatric disorders like depression, prompted us to further investigate the long-term impact of prenatal dexamethasone administration in depressive-like behavior, the immune system and in the ability to mount an immune response to acute infection. The adult male offspring of pregnant dams treated with dexamethasone present depressive-like behavior concomitant with a decrease in CD8(+) T lymphocytes and an increase in B and CD4(+) regulatory T cells. This is accompanied by lower levels of serum interleukin-6 (IL-6) and IL-10. Despite of these differences, when spleen cells are stimulated, in vitro, with lipopolysaccharide, those from adult rats prenatally treated with dexamethasone display a stronger pro-inflammatory cytokine response. However, this immune system profile does not hamper the ability of rats prenatally treated with dexamethasone to respond to acute infection by Listeria monocytogenes. Of notice, L. monocytogenes infection triggers depressive-like behavior in control animals but does not worsen that already present in dexamethasone-treated animals. In summary, prenatal administration of dexamethasone has long-lasting effects on the immune system and on behavior, which are not further aggravated by acute infection with L. monocytogenes.
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Affiliation(s)
- Susana Roque
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho Braga, Portugal
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Abstract
BACKGROUND The thyroid hormone milieu is of crucial importance for the developing fetus. Pregnancy induces physiological changes in thyroid homeostasis that are influenced by the iodine status. However, longitudinal studies addressing thyroid function during pregnancy and after delivery are still lacking in mild-to-moderate iodine-deficient populations. Here we characterize the serum parameters of thyroid function throughout pregnancy, and until 1 year after delivery, in a population of pregnant women whom we have previously reported to be iodine deficient (median urinary iodine levels below 75 microg/L). METHODS One hundred eighteen pregnant women were studied. Clinical data were recorded and serum was collected. Serum total and free thyroxine (T(4)) and triiodothyronine (T(3)), thyroid-stimulating hormone, thyroxine-binding globulin, and thyroglobulin were measured. RESULTS Mean total T(4) ranged from 159 at the start of gestation to 127 nmol/L at 1 year after delivery, free T(4) from 14.2 to 17.8 pmol/L, total T(3) from 2.4 to 2.1 nmol/L, free T(3) from 6.7 pmol/L to 6.4 pmol/L, thyroid-stimulating hormone from 1.2 to 1.4 mIU/L, T(4)-binding globulin from 62.0 to 26.9 mg/L, and thyroglobulin from 11 to 10 microg/L. CONCLUSION The pregnant women in this study had an absence of the usual free T(4) spike and a smaller than expected increment in total T(4), described during pregnancy in iodine-sufficient populations. A greater number of women had subclinical hypothyroidism compared with iodine-sufficient populations. This hormonal profile, most likely due to iodine insufficiency, may result in inadequate thyroid hormone supply to the developing fetus. We conclude that care should be taken when reviewing the results of thyroid hormone tests in iodine-insufficient populations and when no gestation-specific reference values have been established. In addition, we recommend iodine supplementation in our population and populations with similar iodine status, particularly during pregnancy and lactation.
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Affiliation(s)
- Maria José Costeira
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
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Olsson IAS, Costa A, Nobrega C, Roque S, Correia-Neves M. Environmental Enrichment does not Compromise the Immune Response in Mice Chronically Infected withMycobacterium avium. Scand J Immunol 2010; 71:249-57. [DOI: 10.1111/j.1365-3083.2010.02371.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- I A S Olsson
- Laboratory Animal Science, Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Portugal
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Nobrega C, Roque S, Nunes-Alves C, Coelho A, Medeiros I, Castro AG, Appelberg R, Correia-Neves M. Dissemination of mycobacteria to the thymus renders newly generated T cells tolerant to the invading pathogen. J Immunol 2009; 184:351-8. [PMID: 19949112 DOI: 10.4049/jimmunol.0902152] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The ability of the thymus to generate a population of T cells that is, for the most part, self-restricted and self-tolerant depends to a great extent on the Ags encountered during differentiation. We recently showed that mycobacteria disseminate to the thymus, which raised the questions of how mycobacteria within the thymus influence T cell differentiation and whether such an effect impacts host-pathogen interactions. Athymic nude mice were reconstituted with thymic grafts from Mycobacterium avium-infected or control noninfected donors. T cells generated from thymi of infected donors seemed generally normal, because they retained the ability to reconstitute the periphery and to respond to unspecific stimuli in vitro as well as to antigenic stimulation with third-party Ags, such as OVA, upon in vivo immunization. However, these cells were unable to mount a protective immune response against a challenge with M. avium. The observation that thymic infection interferes with T cell differentiation, generating T cells that are tolerant to pathogen-specific Ags, is of relevance to understand the immune response during chronic persistent infections. In addition, it has potential implications for the repertoire of T cells generated in patients with a mycobacterial infection recovering from severe lymphopenia, such as patients coinfected with HIV and receiving antiretroviral therapy.
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Affiliation(s)
- Claudia Nobrega
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
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Mesquita AR, Correia-Neves M, Roque S, Castro AG, Vieira P, Pedrosa J, Palha JA, Sousa N. IL-10 modulates depressive-like behavior. J Psychiatr Res 2008; 43:89-97. [PMID: 18394646 DOI: 10.1016/j.jpsychires.2008.02.004] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Revised: 02/20/2008] [Accepted: 02/21/2008] [Indexed: 10/22/2022]
Abstract
The role of pro-inflammatory cytokines in psychiatric disorders has been the focus of great research attention in recent years. Paradoxically, the same is not true for anti-inflammatory cytokines. In the present study, we assessed the behavioral profile of animals with altered expression of the anti-inflammatory cytokine IL-10. We performed a battery of tests to assess anxiety, depressive-like and cognitive behaviors in mice overexpressing IL-10 (PMT10) and IL-10(-/-) animals; in the later mice we also tested the behavioral effect of IL-10 administration. In the forced-swimming test, IL-10(-/-) females displayed increased depressive-like behavior; importantly, this phenotype was reverted by the injection of IL-10. Moreover, mice overexpressing IL-10 presented a decreased depressive-like behavior. Despite the presence of a similar trend, male animals did not reach significant differences in depressive-like behavior. Assessment in the open-field showed that the absence of IL-10 decreased the percentage of time spent in the center of the arena in both male and female mice, while male animals overexpressing IL-10 revealed an opposite behavior. For both sexes, imbalance in IL-10 levels did not affect spatial reference memory. In conclusion, variations in IL-10 expression are associated with an altered depressive-like behavior, but do not influence cognitive performance. Interestingly, IL-10 imbalance produced more profound behavioral changes in females than in male animals. This is in accordance with clinical data demonstrating an increased susceptibility of women to mood disorders, suggesting an interplay between anti-inflammatory cytokines and sexual steroids.
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Affiliation(s)
- Ana Raquel Mesquita
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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Nobrega C, Cardona PJ, Roque S, Pinto do O P, Appelberg R, Correia-Neves M. The thymus as a target for mycobacterial infections. Microbes Infect 2007; 9:1521-9. [PMID: 18062904 DOI: 10.1016/j.micinf.2007.08.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2007] [Revised: 08/16/2007] [Accepted: 08/17/2007] [Indexed: 12/30/2022]
Abstract
Mycobacterial infections are among the major health threats worldwide. Ability to fight these infections depends on the host's immune response, particularly on macrophages and T lymphocytes produced by the thymus. Using the mouse as a model, and two different routes of infection (aerogenic or intravenous), we show that the thymus is consistently colonized by Mycobacterium tuberculosis, Mycobacterium avium or Mycobacterium bovis BCG. When compared to organs such as the liver and spleen, the bacterial load reaches a plateau at later time-points after infection. Moreover, in contrast with organs such as the spleen and the lung no granuloma were found in the thymus of mice infected with M. tuberculosis or M. avium. Since T cell differentiation depends, to a large extent, on the antigens encountered within the thymus, infection of this organ might alter the host's immune response to infection. Therefore, from now on, the thymus should be considered in studies addressing the immune response to mycobacterial infection.
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Affiliation(s)
- Claudia Nobrega
- Laboratory of Microbiology and Immunology of Infection, Institute for Molecular and Cell Biology (IBMC), University of Porto, Rua do Campo Alegre 823, 4150-084 Porto, Portugal
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Roque S, Nobrega C, Appelberg R, Correia-Neves M. IL-10 underlies distinct susceptibility of BALB/c and C57BL/6 mice to Mycobacterium avium infection and influences efficacy of antibiotic therapy. J Immunol 2007; 178:8028-35. [PMID: 17548640 DOI: 10.4049/jimmunol.178.12.8028] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Increased production of IL-10 has been frequently associated with augmented susceptibility to infection. However, the correlation between IL-10 activity and susceptibility to mycobacterial infection is still uncertain. Although studies using transgenic mice overexpressing IL-10 consistently showed an increased susceptibility to mycobacterial infection, experimental approaches in which IL-10 activity was reduced or abrogated originated inconclusive data. We show here that this controversy might be due to the mouse strains used in the various experimental procedures. Our results show that BALB/c mice are more susceptible than C57BL/6 to Mycobacterium avium infection. This increased susceptibility of BALB/c mice is, to a great extent, due to distinct activity of IL-10 between the two mouse strains. In accordance, reduction of IL-10 activity through the administration of anti-IL-10R mAb, or the absence of IL-10 as studied in IL-10 knockout mice, clearly decreased the susceptibility of BALB/c mice to M. avium but had a less obvious effect in C57BL/6 mice. Moreover, abrogation of IL-10 activity in infected BALB/c mice increased the efficacy of antimycobacterial therapy, whereas for the C57BL/6 mice it produced no effect. These observations show that the activity of IL-10 in response to the same mycobacterial stimulus influences not only the susceptibility to infection but also the efficacy of antimycobacterial therapy. This should now be considered in the context of human response to mycobacterial infection, particularly as a possible strategy to improve treatment against infections by mycobacteria.
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Affiliation(s)
- Susana Roque
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal
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Gabriel R, Lorena D, Roque S, Valeria EHM. Omalgia derecha. Forma de presentacion atipica de diseccion aortica. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2006.10.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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