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Borges AC, Sousa N, Nogueira-Silva C. Vulvar endometriosis: a rare primary location in adolescence. Arch Gynecol Obstet 2024; 309:1663-1664. [PMID: 37642693 DOI: 10.1007/s00404-023-07194-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/13/2023] [Indexed: 08/31/2023]
Affiliation(s)
- Ana Catarina Borges
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes-São Victor, 4710-243, Braga, Portugal.
| | - Natacha Sousa
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes-São Victor, 4710-243, Braga, Portugal
| | - Cristina Nogueira-Silva
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes-São Victor, 4710-243, Braga, Portugal
- School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/3B's-PT Government Associate Laboratory, Braga, Portugal
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Scuglia M, Frazão LP, Miranda A, Martins A, Barbosa-Sequeira J, Coimbra D, Longatto-Filho A, Reis RL, Nogueira-Silva C, Neves NM, Correia-Pinto J. Diaphragmatic hernia repair porcine model to compare the performance of biodegradable membranes against Gore-Tex ®. Pediatr Surg Int 2023; 40:7. [PMID: 37999778 PMCID: PMC10673990 DOI: 10.1007/s00383-023-05584-x] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/25/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Patch repair of congenital diaphragmatic hernia (CDH) using Gore-Tex® is associated with infection, adhesions, hernia recurrence, long-term musculoskeletal sequels and poor tissue regeneration. To overcome these limitations, the performance of two novel biodegradable membranes was tested to repair CDH in a growing pig model. METHODS Twelve male pigs were randomly assigned to 3 different groups of 4 animals each, determined by the type of patch used during thoracoscopic diaphragmatic hernia repair (Gore-Tex®, polycaprolactone electrospun membrane-PCLem, and decellularized human chorion membrane-dHCM). After 7 weeks, all animals were euthanized, followed by necropsy for diaphragmatic evaluation and histological analysis. RESULTS Thoracoscopic defect creation and diaphragmatic repair were performed without any technical difficulty in all groups. However, hernia recurrence rate was 0% in Gore-Tex®, 50% in PCLem and 100% in dHCM groups. At euthanasia, Gore-Tex® patches appeared virtually unchanged and covered with a fibrotic capsule, while PCLem and dHCM patches were replaced by either floppy connective tissue or vascularized and floppy regenerated membranous tissue, respectively. CONCLUSION Gore-Tex® was associated with a higher survival rate and lower recurrence. Nevertheless, the proposed biodegradable membranes were associated with better tissue integration when compared with Gore-Tex®.
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Affiliation(s)
- Marianna Scuglia
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Laura P Frazão
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group, I3B's - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
| | - Alice 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
| | - Albino Martins
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group, I3B's - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
| | - Joana Barbosa-Sequeira
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Pediatric Surgery, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Diana Coimbra
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, 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
| | - Rui L Reis
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group, I3B's - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
| | - Cristina Nogueira-Silva
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Nuno M Neves
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.
- 3B's Research Group, I3B's - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal.
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute, 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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Pinto TM, Nogueira-Silva C, Figueiredo B. Fetal heart rate variability and infant self-regulation: the impact of mother's prenatal depressive symptoms. J Reprod Infant Psychol 2023:1-14. [PMID: 37726914 DOI: 10.1080/02646838.2023.2257730] [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] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 09/06/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND Foetal heart rate (FHR) variability is considered a marker of foetal neurobehavioral development associated with infant self-regulation and thus may be an early precursor of the adverse impact of mother's prenatal depressive symptoms on infant self-regulation. OBJECTIVE This study analysed the mediator role of FHR variability in the association between mother's prenatal depressive symptoms and infant self-regulation at three months. METHODS The sample comprised 86 first-born infants and their mothers. Mothers reported on depressive symptoms at the first trimester of pregnancy and on depressive symptoms and infant self-regulation at three months postpartum. FHR variability was recorded during routine cardiotocography at the third trimester of pregnancy. A mediation model was tested, adjusting for mother's postnatal depressive symptoms. RESULTS Higher levels of mother's prenatal depressive symptoms were associated with both lower FHR variability and lower infant self-regulation at three months. FHR variability was associated with infant self-regulation and mediated the association between mother's prenatal depressive symptoms and infant self-regulation at three months. CONCLUSION Findings suggested FHR variability as an early precursor of infant self-regulation that underlies the association between mother's prenatal depressive symptoms and infant self-regulation. Infants of mothers with higher levels of prenatal depressive symptoms could be at risk of self-regulation problems, partially due to their lower FHR variability.
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Affiliation(s)
- Tiago Miguel Pinto
- School of Psychology, University of Minho, Braga, Portugal
- HEI-Lab, Digital Human-Environment Interaction Lab, Lusófona University, Porto, Portugal
| | - Cristina Nogueira-Silva
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
- 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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Nogueira A, Ammar O, Bilir E, Iftene L, Torrero I, Ceschin N, Nogueira-Silva C, Brandão P. University students' opinion on gamete donor identification regimes. J Assist Reprod Genet 2023:10.1007/s10815-023-02832-w. [PMID: 37233867 DOI: 10.1007/s10815-023-02832-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/18/2023] [Indexed: 05/27/2023] Open
Abstract
PURPOSE This study aims to evaluate the opinion of university students about the identification or nonidentification of gamete donation and the probability of donation according to the different regimes. METHODS This was a cross-sectional observational study based on an online anonymous survey including questions about sociodemographic data, reasons for considering donations, information about the donation process and legislation, and their opinions about the different regimes and how they would influence donations. RESULTS In total, 1393 valid responses were obtained, with a mean age of 24.0 years (SD = 4.8), most of the respondents being female (68.5%), living in a relationship (56.7%), and without children (88.4%). The main reasons for considering donation would be altruism and monetary compensation. Overall, it was found that participants were poorly informed about the donation procedure and legislation. Students revealed preference for nonidentified donation, and they were less likely to donate in an open identity regime. CONCLUSION Most university students consider themselves poorly informed about gamete donation, express a preference for nonidentified gamete donation, and would less likely donate on an open identity basis. Thus, an identified regime may be less attractive to potential donors and lead to a decrease in the availability of gamete donors.
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Affiliation(s)
- Ana Nogueira
- Medical School, University of Minho, Universidade Do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Omar Ammar
- Ar-Razi Private Hospital, 60 Street, Ramadi, Iraq
| | - Enes Bilir
- School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | | | - Ignácio Torrero
- University Cardenal Herrera, Carrer Lluís Vives, 1, 46115 Alfara del Patriarca, Valencia, Spain
| | - Nathan Ceschin
- Feliccità Fertility Institute, Rua Conselheiro Dantas, 1154-Prado Velho, Curitiba, Paraná, 80220-191, Brazil
| | - Cristina Nogueira-Silva
- Medical School, University of Minho, Universidade Do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Pedro Brandão
- Ginemed Porto, Avenida da Boavista, 1243, 4100-130, Porto, Portugal.
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Nogueira-Silva C, Rolhas A, Ramilo I, Plancha M, Pereira da Silva D. User satisfaction with an intrauterine system containing 52 mg levonorgestrel: a Portuguese study. EUR J CONTRACEP REPR 2023; 28:113-118. [PMID: 36802947 DOI: 10.1080/13625187.2023.2174375] [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] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
OBJECTIVE To characterise patient satisfaction 6 and 12 months after insertion of a 52 mg levonorgestrel-releasing intrauterine system (LNG-IUS) in Portuguese women. STUDY DESIGN A non-interventional and prospective study was conducted in Portuguese women of reproductive age who had Levosert® inserted. Two questionnaires (administered 6 and 12 months after 52 mg LNG-IUS insertion) were used to collect information on the patients' menstrual pattern, discontinuation rate, and satisfaction rate with Levosert®. RESULTS A total of 102 women were enrolled, of which only 94 (92.2%) completed the study. Seven participants discontinued the use of the 52 mg LNG-IUS. At 6 and 12 months, 90.7% and 90.4% of participants, respectively, were either satisfied or very satisfied with the 52 mg LNG-IUS. At 6 and 12 months, 73.2% and 72.3% of participants, respectively, indicated that they were very likely to recommend the 52 mg LNG-IUS to a friend or family member. Most women (92.2%) continued to use the 52 mg LNG-IUS for the first year. The percentage of women who were 'much more satisfied' with Levosert® than with their previous contraceptive methods was 55.9% and 57.8% at 6 and 12 months, respectively, per questionnaire assessment. Satisfaction was associated with age (p = 0.004), amenorrhoea (p < 0.003) and absence of dysmenorrhoea (p = 0.003), but not with parity (p = 0.922). CONCLUSIONS These data suggest that the continuation and satisfaction rates with Levosert® were very high, and that this system is well accepted among Portuguese women. Patient satisfaction was driven by a favourable bleeding pattern and absence of dysmenorrhoea.
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Affiliation(s)
- Cristina Nogueira-Silva
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Portugal.,Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Ana Rolhas
- Department of Obstetrics and Gynecology Centro Hospitalar, Universitário de Coimbra, Coimbra, Portugal
| | - Irina Ramilo
- Serviço de Ginecologia, Hospital Lusíadas, Lisboa, Portugal
| | - Marta Plancha
- Maternidade Alfredo da Costa, Centro Hospitalar Universitário Lisboa Central, Lisboa, Portugal
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Ben Messaoud N, Barreiros dos Santos M, Trocado V, Nogueira-Silva C, Queirós R. A novel label-free electrochemical immunosensor for detection of surfactant protein B in amniotic fluid. Talanta 2023; 251:123744. [DOI: 10.1016/j.talanta.2022.123744] [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] [Received: 05/07/2022] [Revised: 07/05/2022] [Accepted: 07/14/2022] [Indexed: 11/17/2022]
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Gonçalves AN, Moura RS, Correia-Pinto J, Nogueira-Silva C. Intraluminal chloride regulates lung branching morphogenesis: involvement of PIEZO1/PIEZO2. Respir Res 2023; 24:42. [PMID: 36740669 PMCID: PMC9901166 DOI: 10.1186/s12931-023-02328-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 01/13/2023] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Clinical and experimental evidence shows lung fluid volume as a modulator of fetal lung growth with important value in treating fetal lung hypoplasia. Thus, understanding the mechanisms underlying these morphological dynamics has been the topic of multiple investigations with, however, limited results, partially due to the difficulty of capturing or recapitulating these movements in the lab. In this sense, this study aims to establish an ex vivo model allowing the study of lung fluid function in branching morphogenesis and identify the subsequent molecular/ cellular mechanisms. METHODS Ex vivo lung explant culture was selected as a model to study branching morphogenesis, and intraluminal injections were performed to change the composition of lung fluid. Distinct chloride (Cl-) concentrations (5.8, 29, 143, and 715 mM) or Cl- channels inhibitors [antracene-9-carboxylic acid (A9C), cystic fibrosis transmembrane conductance regulator inhibitor172 (CFTRinh), and calcium-dependent Cl- channel inhibitorA01 (CaCCinh)] were injected into lung lumen at two timepoints, day0 (D0) and D2. At D4, morphological and molecular analyses were performed in terms of branching morphogenesis, spatial distribution (immunofluorescence), and protein quantification (western blot) of mechanoreceptors (PIEZO1 and PIEZO2), neuroendocrine (bombesin, ghrelin, and PGP9.5) and smooth muscle [alpha-smooth muscle actin (α-SMA) and myosin light chain 2 (MLC2)] markers. RESULTS For the first time, we described effective intraluminal injections at D0 and D2 and demonstrated intraluminal movements at D4 in ex vivo lung explant cultures. Through immunofluorescence assay in in vivo and ex vivo branching morphogenesis, we show that PGP9.5 colocalizes with PIEZO1 and PIEZO2 receptors. Fetal lung growth is increased at higher [Cl-], 715 mM Cl-, through the overexpression of PIEZO1, PIEZO2, ghrelin, bombesin, MLC2, and α-SMA. In contrast, intraluminal injection of CFTRinh or CaCCinh decreases fetal lung growth and the expression of PIEZO1, PIEZO2, ghrelin, bombesin, MLC2, and α-SMA. Finally, the inhibition of PIEZO1/PIEZO2 by GsMTx4 decreases branching morphogenesis and ghrelin, bombesin, MLC2, and α-SMA expression in an intraluminal injection-independent manner. CONCLUSIONS Our results identify PIEZO1/PIEZO2 expressed in neuroendocrine cells as a regulator of fetal lung growth induced by lung fluid.
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Affiliation(s)
- Ana N. Gonçalves
- grid.10328.380000 0001 2159 175XSchool of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Campus de Gualtar, Gualtar, 4710-057 Braga, Portugal ,grid.10328.380000 0001 2159 175XLife and Health Sciences Research Institute/3B’s-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rute S. Moura
- grid.10328.380000 0001 2159 175XSchool of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Campus de Gualtar, Gualtar, 4710-057 Braga, Portugal ,grid.10328.380000 0001 2159 175XLife and Health Sciences Research Institute/3B’s-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jorge Correia-Pinto
- grid.10328.380000 0001 2159 175XSchool of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Campus de Gualtar, Gualtar, 4710-057 Braga, Portugal ,grid.10328.380000 0001 2159 175XLife and Health Sciences Research Institute/3B’s-PT Government Associate Laboratory, Braga/Guimarães, Portugal ,Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
| | - Cristina Nogueira-Silva
- School of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Campus de Gualtar, Gualtar, 4710-057, Braga, Portugal. .,Life and Health Sciences Research Institute/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal. .,Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal.
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Fernandes Â, Azevedo N, Valente A, Dias M, Gomes A, Nogueira-Silva C, Henriques M, Silva S, Gonçalves B. Vulvovaginal candidiasis and asymptomatic vaginal colonization in Portugal: epidemiology, risk factors and antifungal pattern. Med Mycol 2022; 60:6575555. [PMID: 35482711 DOI: 10.1093/mmy/myac029] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 12/05/2021] [Revised: 02/24/2022] [Indexed: 11/13/2022] Open
Abstract
Vulvovaginal candidiasis (VVC) has been identified as a global issue of concern due to its clinical, social and economic implications. The emerging relevance of VVC makes it crucial to increase the knowledge on its epidemiological and etiological features in order to improve its prevention and treatment. Thus, this study aimed to reveal the incidence, microbiology, antifungal pattern and risk factors of VVC in Portugal. For that, high vaginal samples were collected from 470 symptomatic and asymptomatic participants; Candida spp. were identified with molecular techniques and their antifungal susceptibility was analysed with E-tests. The results revealed an incidence of VVC among women with vulvovaginitis of 74.4%. Furthermore, 63.7% of asymptomatic women were colonized with Candida spp. Importantly, women with history of recurrent vaginal infections, those who use over-the-counter antifungals, oral contraceptive pills and non-cotton underwear were found to be at significantly higher risk of developing VVC. Candida albicans was the most common species (59%), followed by Candida glabrata (27%), in a total of 8 distinct species, with similar distribution among colonized and infected participants. Of note, various isolates, especially of the most common species, showed low susceptibility towards fluconazole. In contrast, only few isolates showed low susceptibility towards caspofungin. Overall, this study suggests that the identification of species causing VVC and their antifungal susceptibility are urgently needed in clinical practice in order to improve the decision for the most adequate treatment. It also suggests that avoiding certain risk behaviours may prevent the development of VVC.
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Affiliation(s)
- Ângela Fernandes
- Family Health Unit (USF) +Carandá, Health Centre Group (ACeS) Cávado I, Braga, Portugal
| | - Nuno Azevedo
- Biofilm Research Laboratory Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, 4710-057 Braga, Portugal.,LABBELS - Associate Laboratory, Braga, Guimarães, Portugal
| | - Andreia Valente
- Biofilm Research Laboratory Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, 4710-057 Braga, Portugal.,LABBELS - Associate Laboratory, Braga, Guimarães, Portugal
| | - Marisol Dias
- Biofilm Research Laboratory Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, 4710-057 Braga, Portugal.,LABBELS - Associate Laboratory, Braga, Guimarães, Portugal
| | - Ana Gomes
- Family Health Unit (USF) +Carandá, Health Centre Group (ACeS) Cávado I, Braga, Portugal
| | - Cristina Nogueira-Silva
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal; Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/ Guimarães, Portugal; Department of Obstetrics and Gynaecology, Hospital de Braga, Braga, Portugal
| | - Mariana Henriques
- Biofilm Research Laboratory Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, 4710-057 Braga, Portugal.,LABBELS - Associate Laboratory, Braga, Guimarães, Portugal
| | - Sónia Silva
- Biofilm Research Laboratory Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, 4710-057 Braga, Portugal.,National Institute for Agrarian and Veterinary Research, Vairão, 4485-655, Vila do Conde, Portugal
| | - Bruna Gonçalves
- Biofilm Research Laboratory Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, 4710-057 Braga, Portugal.,LABBELS - Associate Laboratory, Braga, Guimarães, Portugal
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Pereira da Silva D, Nogueira-Silva C, Lima J, Braga A, Saraiva J, Águas F, Nogueira-Martins N, Santo S, Furtado JM, Almeida MC, Guerreiro C, Veríssimo C, Bernardes J. [Demographic and Professional Characteristics of Specialists in Obstetrics and Gynecology Registered in Portugal: Needs, Resources and Challenges]. ACTA MEDICA PORT 2022; 35:343-356. [PMID: 35073253 DOI: 10.20344/amp.16282] [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] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 09/20/2021] [Accepted: 09/09/2021] [Indexed: 11/20/2022]
Abstract
INTRODUCTION The demographic and professional characteristics of specialists in Obstetrics and Gynecology registered in Portugal are presented and current and future needs assessed. MATERIAL AND METHODS An analysis of the data from Instituto Nacional de Estatística, Ordem dos Médicos and a survey sent to the directors of the departments of Obstetrics and Gynecology of Portuguese hospitals was perfomed. In order to calculate the necessary number of specialists, established indicators of the activity of the specialty were used. RESULTS In 2018, there were 1 437 441 consultations of Obstetrics and Gynecology, 89 110 major gynecologic surgeries and 85 604 deliveries. For that, 1065 Obstetrics and Gynecology physicians, working 40 hours per week, with no more than 40% aged 55 years of age and older or including 30 residents per year, are deemed necessary. According to the National Institute of Statistics, in the same year there were 1143 specialists in Portuguese hospitals, of which 234 worked in private hospitals. On the other hand, 1772 specialists were registered with the Ordem dos Médicos: 1163 (66%) were aged 55 years old or above and 84% of specialists under the age of 40 were females. In 2020, there were 864 specialists, 46% of which aged years of age and older working in 39 out of the 41 public or public-private departments that answered the survey. In 2035, an increase of 7% in the required number of specialists is expected. CONCLUSION In Portugal, there is not lack of Obstetrics and Gynecology specialists in absolute numbers, but the large number of specialists aged 55 years of age and older, who are exempt from shifts in emergency department work, and the existence of regional asymmetries contribute to the perpetuation of some shortages of these healthcare professionals in several departments, namely in public hospitals.
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Affiliation(s)
| | - Cristina Nogueira-Silva
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Serviço de Ginecologia e Obstetrícia. Hospital de Braga. Braga. ICVS e ICVS/3B's - Laboratório Associado. Escola de Medicina. Universidade do Minho. Braga. Portugal
| | - Jorge Lima
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Serviço de Ginecologia e Obstetrícia. Hospital da Luz Lisboa. Lisboa. Faculdade de Ciências Médicas. Universidade NOVA de Lisboa. Lisboa. Portugal
| | - António Braga
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Faculdade de Ciências Médicas. Universidade NOVA de Lisboa. Lisboa. Serviço de Obstetrícia. Departamento da Mulher e da Medicina Reprodutiva. Centro Materno-Infantil do Norte. Porto. Portugal
| | - João Saraiva
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Serviço de Ginecologia e Obstetrícia. Hospital Garcia de Orta. Almada. Portugal
| | - Fernanda Águas
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Serviço de Ginecologia. Centro Hospitalar e Universitário de Coimbra. Coimbra. Portugal
| | - Nuno Nogueira-Martins
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Serviço de Ginecologia e Obstetrícia. Hospital de S. Teotónio. Centro Hospitalar Tondela-Viseu. Viseu. Portugal
| | - Susana Santo
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Departamento de Obstetrícia, Ginecologia e Medicina da Reprodução. Hospital de Santa Maria. Centro Hospitalar Universitário Lisboa Norte. Lisboa. Faculdade de Medicina. Universidade de Lisboa. Lisboa. Portugal
| | - José Manuel Furtado
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Serviço de Ginecologia e Obstetrícia. Hospital Senhora da Oliveira. Centro Hospitalar do Alto Ave. Guimarães. Portugal
| | - Maria Céu Almeida
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Serviço de Obstetrícia. Maternidade Bissaya Barreto. Centro Hospitalar e Universitário de Coimbra. Coimbra. Portugal
| | - Cristina Guerreiro
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Serviço de Ginecologia e Obstetrícia. Maternidade Alfredo da Costa. Centro Hospitalar Universitário de Lisboa Central. Lisboa. Portugal
| | - Carlos Veríssimo
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Serviço de Ginecologia e Obstetrícia. Hospital Beatriz Ângelo. Loures. Portugal
| | - João Bernardes
- Colégio da Especialidade de Ginecologia-Obstetrícia. Ordem dos Médicos. Lisboa. Faculdade de Medicina. Universidade do Porto. Porto. Serviço de Ginecologia. Centro Hospitalar Universitário de S. João. Porto. Portugal
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10
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Gonçalves AN, Correia-Pinto J, Nogueira-Silva C. Distinct Epithelial Cell Profiles in Normal Versus Induced-Congenital Diaphragmatic Hernia Fetal Lungs. Front Pediatr 2022; 10:836591. [PMID: 35601428 PMCID: PMC9120630 DOI: 10.3389/fped.2022.836591] [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: 12/15/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Recent studies identified a great diversity of cell types in precise number and position to create the architectural features of the lung that ventilation and respiration at birth depend on. With damaged respiratory function at birth, congenital diaphragmatic hernia (CDH) is one of the more severe causes of fetal lung hypoplasia with unspecified cellular dynamics. OBJECTIVES To characterize the epithelial cell tissue in hypoplastic lungs, a careful analysis regarding pulmonary morphology and epithelial cell profile was conducted from pseudoglandular-to-saccular phases in normal versus nitrofen-induced CDH rat lungs. DESIGN Our analysis comprises three experimental groups, control, nitrofen (NF) and CDH, in which the relative expression levels (western blot) by group and developmental stage were analyzed in whole lung. Spatiotemporal distribution (immunohistochemistry) was revealed by pulmonary structure during normal and hypoplastic fetal lung development. Surfactant protein-C (SP-C), calcitonin gene-related peptide (CGRP), clara cell secretory protein (CCSP), and forkhead box J1 (FOXJ1) were the used molecular markers for alveolar epithelial cell type 2 (AEC2), pulmonary neuroendocrine, clara, and ciliated cell profiles, respectively. RESULTS Generally, we identified an aberrant expression of SP-C, CGRP, CCSP, and FOXJ1 in nitrofen-exposed lungs. For instance, the overexpression of FOXJ1 and CGRP in primordia of bronchiole defined the pseudoglandular stage in CDH lungs, whereas the increased expression of CGRP in bronchi; FOXJ1 and CGRP in terminal bronchiole; and SP-C in BADJ classified the canalicular and saccular stages in hypoplastic lungs. We also described higher expression levels in NF than CDH or control groups for both FOXJ1 in bronchi, terminal bronchiole and BADJ at canalicular stage, and SP-C in bronchi and terminal bronchiole at canalicular and saccular stages. Finally, we report an unexpected expression of FOXJ1 in BADJ at canalicular and saccular stages, whereas the multi cilia observed in bronchi were notably absent at embryonic day 21.5 in induced-CDH lungs. CONCLUSION The recognized alterations in the epithelial cell profile contribute to a better understanding of neonatal respiratory insufficiency in induced-CDH lungs and indicate a problem in the epithelial cell differentiation in hypoplastic lungs.
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Affiliation(s)
- Ana N Gonçalves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, 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, Guimarães, Portugal.,Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
| | - Cristina Nogueira-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal.,Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
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11
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Pereira MG, Ribeiro I, Ferreira H, Osório F, Nogueira-Silva C, Almeida AC. Psychological Morbidity in Endometriosis: A Couple's Study. Int J Environ Res Public Health 2021; 18:ijerph182010598. [PMID: 34682344 PMCID: PMC8535360 DOI: 10.3390/ijerph182010598] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/24/2021] [Accepted: 10/02/2021] [Indexed: 12/16/2022]
Abstract
Endometriosis is a chronic gynecological disease that impacts more than 176 million women worldwide, having a strong impact on psychological morbidity. This study aimed to evaluate the contribution of psychological morbidity, in women with endometriosis, taking into consideration the duration of the couple’s relationship and the duration of the disease and also examined whether women’s sexual satisfaction had an impact on their psychological morbidity (actor effect) and on their sexual partners’ psychological morbidity (partner effect) and vice versa. Participants were 105 women and their partners, who answered the Hospital Anxiety and Depression Scale (HADS); Couple Satisfaction Index (CSI-4) and the Global Measure of Sexual Satisfaction (GMSEX). The results revealed a direct effect between the perception of symptom severity, marital satisfaction, and women’s psychological morbidity. Sexual activity and the presence of infertility had an indirect effect on the relationship between sexual satisfaction, diagnosis duration, and psychological morbidity, respectively. Finally, women’s sexual satisfaction had a direct effect on their own and their partner’s marital satisfaction that predicted less psychological morbidity, in both. Thus, a multidisciplinary intervention focused on the couple’s sexual and marital relationship is needed to promote psychological well-being in this population.
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Affiliation(s)
- Maria Graça Pereira
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal;
- Correspondence:
| | - Inês Ribeiro
- School of Psychology, University of Minho, 4710-057 Braga, Portugal;
| | - Hélder Ferreira
- Department of Gynecology, Centro Materno-Infantil do Norte, Centro Hospitalar Universitário do Porto, 4099-001 Porto, Portugal;
| | - Filipa Osório
- Department of Gynecology and Obstetrics, Hospital da Luz, 1649-028 Lisboa, Portugal;
- Departament of Obstetrics, Gynecology and Reproduction Medicine, Hospital Santa Maria, 1649-028 Lisboa, Portugal
| | - Cristina Nogueira-Silva
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, 4710-057 Braga, Portugal;
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Department of Obstetrics and Gynecology, Hospital de Braga, 4710-243 Braga, Portugal
| | - Ana C. Almeida
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal;
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12
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Borges AC, Sousa N, Sarabando R, Vieira C, Ribeiro B, Barbosa P, Miranda A, Reis I, Nogueira-Silva C. Pelvic floor dysfunction after vaginal delivery: MOODS-a prospective study. Int Urogynecol J 2021; 33:1539-1547. [PMID: 34562133 DOI: 10.1007/s00192-021-04982-w] [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] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 08/17/2021] [Indexed: 11/29/2022]
Abstract
INTRODUCTION AND HYPOTHESIS Labor is a known risk factor for pelvic floor dysfunction (PFD); however, the impact of operative vaginal delivery (OVD), particularly spatulas, remains unclear. The aim of this study was to compare postpartum PFD symptoms in women undergoing spontaneous vaginal delivery (SVD) and those undergoing OVD. METHODS An observational prospective study (MOODS: Maternal-neonatal Outcomes in Operative Vaginal Delivery) was enrolled at Hospital de Braga from February to October 2018. All singleton term OVD (Thierry spatulas and vacuum extractor) and a convenience SVD sample were recruited, in a 2:1 ratio. To assess PFD symptoms Pelvic Floor Distress Inventory-20 (PFDI-20) was applied at 3, 6, and 12 months postpartum. The questionnaire is divided into three subscales: Urinary (UDI), Colorectal-Anal (CRADI), and Pelvic Organ Prolapse Distress Inventory (POPDI). RESULTS Of the 304 women recruited, 207 were included, 34.3% with SVD and 65.7% with OVD. Thierry spatulas were used in 53.7% of women undergoing OVD. Frequency of nulliparous (p < 0.001), episiotomy (p < 0.001), neuraxial anesthesia (p < 0.001), postpartum pain (p = 0.001) and occiput-posterior fetal position (p < 0.001) were significantly higher in OVD. Second phase of labor duration was longer in OVD (p = 0.001). At 3 months postpartum, women undergoing OVD and spatula-assisted delivery had higher UDI score, POPDI score, and global score, with no differences at 6 months and 1 year. After controlling for confounding variables, OVD and spatulas were still associated with greater POPDI scores at 3 months postpartum. CONCLUSIONS Operative vaginal delivery, particularly with spatulas, seems to be associated with a higher prevalence of early PFD symptoms, mainly regarding pelvic organ prolapse.
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Affiliation(s)
- Ana Catarina Borges
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal.
| | - Natacha Sousa
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - Rita Sarabando
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - Catarina Vieira
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - Bárbara Ribeiro
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - Paulina Barbosa
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - Alexandra Miranda
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal.,Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Isabel Reis
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - Cristina Nogueira-Silva
- Department of Obstetrics and Gynecology, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal.,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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13
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Martins J, Ferreira G, Vilaça M, Ferreira H, Osório F, Nogueira-Silva C, Pereira M. Quality of life and sexual satisfaction in women with endometriosis: the moderator role of symptom severity. Psychology & Sexuality 2021. [DOI: 10.1080/19419899.2021.1943501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- J. Martins
- School of Psychology, University of Minho, Braga, Portugal
| | - G. Ferreira
- School of Psychology, University of Minho, Braga, Portugal
| | - M. Vilaça
- Psychology Research Center (Cipsi), School of Psychology, University of Minho, Braga, Portugal
| | - H. Ferreira
- Department of Gynecology, Centro Materno-Infantil Do Norte, Centro Hospitalar Universitário Do Porto, Porto, Portugal
| | - F. Osório
- Departament of Gynecology and Obstetrics, Hospital Da Luz, Lisboa, Portugal, Departament of Obstetrics, Gynecology and Reproduction Medicine, Hospital Santa Maria, Lisboa, Portugal
| | - C. Nogueira-Silva
- Braga, Portugal and Department of Obstetrics and Gynaecology, Life and Health Sciences Research Institute /3b’s - PT Government Associate Laboratory, Hospital De Braga, Braga, Portugal
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14
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Frazão LP, Fernandes AM, Oliveira C, Martins A, Silva TH, Vieira de Castro J, Nogueira-Silva C, Neves NM. New Vascular Graft Using the Decellularized Human Chorion Membrane. ACS Biomater Sci Eng 2021; 7:3423-3433. [PMID: 34097827 DOI: 10.1021/acsbiomaterials.1c00293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The increase of both arterial occlusive diseases and coronary heart diseases leads to a higher demand for small-diameter vascular grafts (<6 mm). The gold standard for small-diameter vessel replacement is the use of autologous veins. Nevertheless, up to 30% of these patients need to use vascular grafts. Although synthetic polymers have been successfully used for the replacement of large-diameter vascular grafts (>6 mm), they are associated with thrombosis, intimal hyperplasia, calcification, and chronic inflammation when used as small-diameter vascular grafts. Therefore, natural materials have been studied for this application. In this study, a decellularized human chorion membrane (dHCM) vascular graft with a 3-4 mm diameter was created. Herein, the biocompatibility of dHCM with endothelial cells was demonstrated in vitro and ex ovo. Blood biocompatibility of dHCM was also shown by studying plasma protein adsorption, platelet adhesion and activation, and its hemolytic potential. Furthermore, dHCM antibacterial properties against Staphylococcus aureus were also studied. In summary, the dHCM reticular layer side presented all the needed characteristics to be used in the inner side of a vascular graft. Additionally, the mechanical properties of the dHCM tubular construct were studied, being similar to the ones of the saphenous vein, the gold standard for autologous small-diameter vessel replacement.
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Affiliation(s)
- Laura P Frazão
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana M Fernandes
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Catarina Oliveira
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Albino Martins
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Tiago H Silva
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana Vieira de Castro
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cristina Nogueira-Silva
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Life and Health Sciences Research Institute, School of Medicine, University of Minho, 4710-057 Braga, Portugal.,Department of Obstetrics and Gynecology, Hospital de Braga, 4710-243 Braga, Portugal
| | - Nuno M Neves
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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15
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de Sousa NQ, Borges AC, Sarabando R, Bivar L, Viana J, Cerqueira M, Miranda A, Reis I, Nogueira-Silva C. The Role of Operative Vaginal Delivery in Postpartum Sexual Dysfunction: MOODS - A Prospective Study. J Sex Med 2021; 18:1075-1082. [PMID: 37057472 DOI: 10.1016/j.jsxm.2021.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 09/13/2020] [Revised: 03/22/2021] [Accepted: 04/02/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Childbirth brings many changes to women's life and sexual health. The influence of operative vaginal delivery on sexual function has produced inconsistent results. AIM To evaluate the effects of mode of vaginal delivery (spontaneous or operative) in postpartum sexual function. METHODS Descriptive prospective study (MOODS- Maternal-neonatal Outcomes in Operative Vaginal Delivery) including 304 women who had a singleton term vaginal delivery (operative or spontaneous in a relation 2:1). Women were invited to answer a questionnaire at 3, 6 months and 1 year postpartum. OUTCOMES MEASUREMENT A validated questionnaire was applied, the Female Sexual Function Index (FSFI) Score, to evaluate effects of operative delivery on sexual health. Sexual dysfunction was defined by FSFI score <26.55. RESULTS 211 women answered at least one questionnaire. Overall rate of sexual dysfunction was 62%, 43% and 48% at 3, 6 and 12 months respectively. At 3 months, total FSFI score was significantly lower in operative vaginal delivery group (mean±SD, 21.3±8.6 vs 24.9±7.9, P = 0.015). Arousal (P = 0.028), orgasm (P = 0.029), satisfaction (P = 0.015) and pain (P = 0.007) FSFI domains were also significantly inferior. At this time, 44% women in spontaneous delivery group and 70% in operative delivery group had sexual dysfunction (P = 0.0002). At 6 months, there were no differences in FSFI scores according the type of delivery. At 12 months, total FSFI score was similar in both groups, but pain domain was significantly lower in operative delivery (P = 0.004). Considering type of instrument (Thierry's Spatulas or Kiwi Vacuum), no differences were found regarding episiotomy, perineal trauma, obstetric anal sphincter injury or postpartum complications. FSFI scores did not differ between the two instruments at any time point. A logistic regression showed that, when controlled for perineal trauma, mode of delivery was independently associated with sexual dysfunction at 3 months (P = 0.02). CLINICAL IMPLICATIONS Clinicians should assess women's sexual health during pregnancy and postpartum period in order to enhance their wellbeing. STRENGTHS/LIMITATIONS Strengths include its prospective design, standardized questionnaire and the new perspectives about a different obstetrical instrument (Thierry's spatulas). Limitations include the absence of pre-pregnancy sexual function data and considerable drop-out rate. CONCLUSION Sexual dysfunction affects a great proportion of newly mothers and in postpartum period mode of delivery and perineal trauma seem to play an important role. Although there was a progressive reduction over time, prevalence of sexual dysfunction at 6 months and 1 year postpartum was still considerable. The type of obstetrical instrument does not seem to influence short or long-term sexual function. de Sousa NQ, Borges AC, Sarabando R, et al. The Role of Operative Vaginal Delivery in Postpartum Sexual Dysfunction: MOODS - A Prospective Study. J Sex Med 2021;18:1075-1082.
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Affiliation(s)
| | | | - Rita Sarabando
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Leonor Bivar
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Johanna Viana
- School of Medicine, Life and Health Sciences Research Institute, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Margarida Cerqueira
- School of Medicine, Life and Health Sciences Research Institute, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Alexandra Miranda
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal; School of Medicine, Life and Health Sciences Research Institute, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Isabel Reis
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Cristina Nogueira-Silva
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal; School of Medicine, Life and Health Sciences Research Institute, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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16
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Gonçalves AN, Correia-Pinto J, Nogueira-Silva C. ROBO2 signaling in lung development regulates SOX2/SOX9 balance, branching morphogenesis and is dysregulated in nitrofen-induced congenital diaphragmatic hernia. Respir Res 2020; 21:302. [PMID: 33208157 PMCID: PMC7672875 DOI: 10.1186/s12931-020-01568-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 08/04/2020] [Accepted: 11/09/2020] [Indexed: 11/23/2022] Open
Abstract
Background Characterized by abnormal lung growth or maturation, congenital diaphragmatic hernia (CDH) affects 1:3000 live births. Cellular studies report proximal (SOX2+) and distal (SOX9+) progenitor cells as key modulators of branching morphogenesis and epithelial differentiation, whereas transcriptome studies demonstrate ROBO/SLIT as potential therapeutic targets for diaphragm defect repair in CDH. In this study, we tested the hypothesis that (a) experimental-CDH could changes the expression profile of ROBO1, ROBO2, SOX2 and SOX9; and (b) ROBO1 or ROBO2 receptors are regulators of branching morphogenesis and SOX2/SOX9 balance. Methods The expression profile for receptors and epithelial progenitor markers were assessed by Western blot and immunohistochemistry in a nitrofen-induced CDH rat model. Immunohistochemistry signals by pulmonary structure were also quantified from embryonic-to-saccular stages in normal and hypoplastic lungs. Ex vivo lung explant cultures were harvested at E13.5, cultures during 4 days and treated with increasing doses of recombinant rat ROBO1 or human ROBO2 Fc Chimera proteins for ROBO1 and ROBO2 inhibition, respectively. The lung explants were analyzed morphometrically and ROBO1, ROBO2, SOX2, SOX9, BMP4, and β-Catenin were quantified by Western blot. Results Experimental-CDH induces distinct expression profiles by pulmonary structure and developmental stage for both receptors (ROBO1 and ROBO2) and epithelial progenitor markers (SOX2 and SOX9) that provide evidence of the impairment of proximodistal patterning in experimental-CDH. Ex vivo functional studies showed unchanged branching morphogenesis after ROBO1 inhibition; increased fetal lung growth after ROBO2 inhibition in a mechanism-dependent on SOX2 depletion and overexpression of SOX9, non-phospho β-Catenin, and BMP4. Conclusions These studies provided evidence of receptors and epithelial progenitor cells which are severely affected by CDH-induction from embryonic-to-saccular stages and established the ROBO2 inhibition as promoter of branching morphogenesis through SOX2/SOX9 balance.
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Affiliation(s)
- Ana N Gonçalves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057, Gualtar, 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, Campus de Gualtar, 4710-057, Gualtar, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
| | - Cristina Nogueira-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057, Gualtar, Braga, Portugal. .,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal. .,Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal.
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17
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Pereira M, Moreira CS, Nogueira-Silva C, Izdebski P, Pereira MG. Breast cancer post-surgical impact on women´s quality of life during chemotherapy treatment: A structural equation modelling approach. Eur J Cancer Care (Engl) 2020; 30:e13349. [PMID: 33159394 DOI: 10.1111/ecc.13349] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 07/02/2020] [Accepted: 08/07/2020] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Breast cancer is an important public health problem that is increasing in incidence, being a stressor with a negative impact on women's quality of life. This study is focused on the evaluation of temporal precursors (one month before) of women's quality of life undergoing chemotherapy, considering post-surgical personal, clinical, cognitive and neuropsychophysiological factors, according to the Transactional Stress and Coping Model. METHODS This longitudinal study included 112 patients with breast cancer. Data were collected in two different moments: before and during the adjuvant chemotherapy. Structural equation modelling was used to support a theoretically based model in which some antecedent factors impact patients' long-term quality of life through a set of mediators. RESULTS The associations of breast symptoms, body image and sexual functioning with psychological distress and quality of life were totally mediated by illness perceptions, while the associations of working memory with psychological distress and quality of life were totally mediated by self-efficacy for coping. Patients with greater psychological distress showed higher levels of nadir cortisol. CONCLUSIONS Results showed the importance of assessing patients' perceptions of their illness, prior to chemotherapy, as well as promoting more self-efficacy for coping, in order to improve women's emotional state and quality of life.
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Affiliation(s)
- Marta Pereira
- School of Psychology, University of Minho, Psychology Research Center (CIPsi), Braga, Portugal
| | - Célia Sofia Moreira
- Faculty of Sciences and Center of Mathematics (FCUP & CMUP), University of Porto, Porto, Portugal
| | - Cristina Nogueira-Silva
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,Life and Health Sciences Research Institute /3B's-PT Government Associate Laboratory, Braga, Portugal.,Department of Obstetrics and Gynaecology, Hospital de Braga, Braga, Portugal
| | - Pawel Izdebski
- Institute of Psychology of the Kazimierz Wielki, University in Bydgoszcz, Bydgoszcz, Poland
| | - M Graça Pereira
- School of Psychology, University of Minho, Psychology Research Center (CIPsi), Braga, Portugal
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18
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Frazão LP, Vieira de Castro J, Nogueira-Silva C, Neves NM. Decellularized Human Chorion Membrane as a Novel Biomaterial for Tissue Regeneration. Biomolecules 2020; 10:E1208. [PMID: 32825287 PMCID: PMC7565174 DOI: 10.3390/biom10091208] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 07/15/2020] [Revised: 08/13/2020] [Accepted: 08/18/2020] [Indexed: 01/26/2023] Open
Abstract
Although some placenta-derived products are already used for tissue regeneration, the human chorion membrane (HCM) alone has been poorly explored. In fact, just one study uses decellularized HCM (dHCM) with native tissue architecture (i.e., without extracellular matrix (ECM) suspension creation) as a substrate for cell differentiation. The aim of this work is to fully characterize the dHCM for the presence and distribution of cell nuclei, DNA and ECM components. Moreover, mechanical properties, in vitro biological performance and in vivo biocompatibility were also studied. Our results demonstrated that the HCM was successfully decellularized and the main ECM proteins were preserved. The dHCM has two different surfaces, the reticular layer side and the trophoblast side; and is biocompatible both in vitro and in vivo. Importantly, the in vivo experiments demonstrated that on day 28 the dHCM starts to be integrated by the host tissue. Altogether, these results support the hypothesis that dHCM may be used as a biomaterial for different tissue regeneration strategies, particularly when a membrane is needed to separate tissues, organs or other biologic compartments.
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Affiliation(s)
- Laura P. Frazão
- I3B’s—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal; (L.P.F.); (J.V.d.C.)
- ICVS/3B’s—PT Government Associate Laboratory, Braga/Guimarães, Portugal;
| | - Joana Vieira de Castro
- I3B’s—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal; (L.P.F.); (J.V.d.C.)
- ICVS/3B’s—PT Government Associate Laboratory, Braga/Guimarães, Portugal;
| | - Cristina Nogueira-Silva
- ICVS/3B’s—PT Government Associate Laboratory, Braga/Guimarães, Portugal;
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, 4710-057 Braga, Portugal
- Department of Obstetrics and Gynecology, Hospital de Braga, 4710-243 Braga, Portugal
| | - Nuno M. Neves
- I3B’s—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, 4805-017 Guimarães, Portugal; (L.P.F.); (J.V.d.C.)
- ICVS/3B’s—PT Government Associate Laboratory, Braga/Guimarães, Portugal;
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Trocado V, Silvestre-Machado J, Azevedo L, Miranda A, Nogueira-Silva C. Pregnancy and COVID-19: a systematic review of maternal, obstetric and neonatal outcomes. J Matern Fetal Neonatal Med 2020; 35:2362-2374. [PMID: 32635775 DOI: 10.1080/14767058.2020.1781809] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND There is limited information related to COVID-19 in pregnancy. OBJECTIVES Evaluate the impact of COVID-19 during pregnancy.Search strategy: Searches were systematically carried out in PubMed, Scopus database and WHO database.Selection criteria: Studies with information related to the effects of COVID-19 in pregnancy, concerning maternal, obstetric, and neonatal outcomes were included.Data collection and analysis: Data were extracted for systematic review following PRISMA guidelines. CARE and STROBE were used to evaluate the quality of data.Main Results: A total of 8 studies involving 95 pregnant women and 51 neonates were included. Overall, the quality was considered good in four studies, moderate in three and poor in one. Among pregnant women, 26% had a history of epidemiological exposure to SARS-CoV-2. The most common symptoms presented were fever (55%), cough (38%) and fatigue (11%). In 50 deliveries, 94% were cesarean sections and 35% were preterm births. Of the 51 neonates, 20% had low birth weight and 1 tested positive for Sars-CoV-2. There was 1 neonatal death, not related to the viral infection, and no cases of severe neonatal asphyxia. CONCLUSIONS The information compiled in this systematic review may help healthcare providers administer the best possible care.
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Affiliation(s)
- Vera Trocado
- 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 Obstetrics and Gynecology, Unidade Local de Saúde do Alto Minho, Viana do Castelo, Portugal
| | - Joana Silvestre-Machado
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
| | - Lídia Azevedo
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
| | - Alexandra 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.,Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Cristina Nogueira-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.,Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
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Abstract
We present a case of a 34-year-old multiparous woman who had been diagnosed with a 14 weeks' gestation showing an abdominal wall bulge possibly representing an omphalocele, containing liver and intestinal loops, at her first-trimester ultrasound scan. At 16 weeks' gestation, an amniocentesis was performed and karyotype analysis revealed a balanced Robertsonian translocation between chromosomes 13 and 14 in a female fetus (45,XX,der(13;14)(q10;q10)). Given this result and ultrasound findings, karyotype and molecular study of the couple were suggested. The results pointed out the absence of maternal contribution to the analysed regions by paternal uniparental disomy for chromosome 14 (isodisomy), which is associated with a severe phenotype. The correlation between ultrasound findings and the genetic study is primordial to guide the diagnostic assessment and to establish the prognosis of the fetal pathology.
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Affiliation(s)
| | - Barbara Ribeiro
- Department of Obstetrics and Gynecology, Braga Hospital, Braga, Portugal
| | - Alexandra Cadilhe
- Department of Obstetrics and Gynecology, Braga Hospital, Braga, Portugal
| | - Cristina Nogueira-Silva
- Department of Obstetrics and Gynecology, Braga Hospital, Braga, Portugal.,Life and Health Sciences Research Institute, School of Medicine, University of Minho, ICVS 3B's Associate Laboratory, Braga, Portugal
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21
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Abstract
The human placenta is considered a biological waste, thus it is a great source of extracellular matrix (ECM) proteins. The human chorion membrane (HCM) is a membrane that composes the human placenta and is constituted by collagens type I, II, IV, V and VI, fibronectin and laminin. To the best of our knowledge, the potential of HCM alone is largely unexplored as a substrate to be used in tissue engineering and regenerative medicine. In this work, we describe, for the first time, the process and method to decellularize the chorion membrane alone. To verify the success of the decellularization protocol, the presence and distribution of cell nuclei and double-stranded DNA were quantified and analyzed by DAPI staining, PicoGreen and electrophoresis. After the decellularization protocol an ECM compact and handleably membrane is obtained, the decellularized human chorion membrane (dHCM).
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Affiliation(s)
- Laura P Frazão
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, Guimarães, Portugal,; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana Vieira-de-Castro
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, Guimarães, Portugal,; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cristina Nogueira-Silva
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal; Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Nuno M Neves
- I3B's-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho: 3Bs Research Group, Guimarães, Portugal,; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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Gonçalves AN, Correia-Pinto J, Nogueira-Silva C. Imagiological methods for prediction of fetal pulmonary hypoplasia: a systematic review. J Matern Fetal Neonatal Med 2019; 34:1459-1468. [PMID: 31269833 DOI: 10.1080/14767058.2019.1636029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To compare the different imagiological methods for prediction of fetal pulmonary hypoplasia (PH) in general diseases and associated with preterm rupture of membranes (PROM), and congenital diaphragmatic hernia (CDH). METHODS According to PRISMA guidelines, all the literature on PH from 1988 to 2018 was reviewed. Twenty-nine articles were selected and analyzed for two- and three- dimensional-ultrasounds (2D and 3D-US) as predictors for the lethal outcome. RESULTS Overall, the results identify a general gap correlating prenatal pulmonary measurements and survival at birth; discrepant predictive values for the same imagiological methods are explained by the group heterogeneity in terms of diseases and degree of severity, with the 2D measurements being more affected than 3D; 2D and 3D-US present equally predictive values for groups with 0% of survival. Regarding PROM, results demonstrate comparable accuracies for similar survival rates suggesting a useful predictive value of 2D-US in outcome estimation; they also identify ultrasonographic methods as a more accurate prognostic factor than gestational age at rupture, latency or amniotic fluid index. In CDH, consistent with previous studies, our review shows magnetic resonance imaging as a better survival predictor followed by the 3D and 2D methods, while 2D-LHR was the more precise prognosticator correlating prenatal PH, survival at birth, and the need for neonatal respiratory support. CONCLUSION Ultrasonographic methods can be valuable predictors for lethal PH and should be validated for a broad set of diseases (e.g. PROM). For that, restricted studies for disease groups and correlating fetal PH with the needed of neonatal support, and survival at birth is critically recommended.
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Affiliation(s)
- Ana N Gonçalves
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,Life and Health Sciences Research Institute /3B's - PT Government Associate Laboratory, Braga, Portugal
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,Life and Health Sciences Research Institute /3B's - PT Government Associate Laboratory, Braga, Portugal.,Department of Paediatric Surgery, Hospital de Braga, Braga, Portugal
| | - Cristina Nogueira-Silva
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,Life and Health Sciences Research Institute /3B's - PT Government Associate Laboratory, Braga, Portugal.,Department of Obstetrics and Gynaecology, Hospital de Braga, Braga, Portugal
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Sarabando R, Trocado V, Oliveira S, Silva V, Reis I, Nogueira-Silva C. Pregnancy after bariatric surgery: What is the optimal interval? Eur J Obstet Gynecol Reprod Biol 2019. [DOI: 10.1016/j.ejogrb.2018.08.488] [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: 10/27/2022]
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24
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Bivar L, Ribeiro B, Vieira C, Nogueira-Silva C, Abreu C, Reis I. The impact of chorionicity on maternal and fetal outcomes. Eur J Obstet Gynecol Reprod Biol 2019. [DOI: 10.1016/j.ejogrb.2018.08.260] [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: 11/29/2022]
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Ribeiro BC, Nogueira-Silva C, Afonso H, Silva PO, Reis ID. Use of etonogestrel implant beyond approved duration: prolonged contraceptive effectiveness. EUR J CONTRACEP REPR 2018; 23:309-310. [PMID: 30203680 DOI: 10.1080/13625187.2018.1501799] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND The subdermal etonogestrel contraceptive implant has a current approved duration of 3 years. There is, however, recent and strong evidence of its effectiveness for 2 additional years during which no pregnancies were documented. CASE We report a case of a 28-year-old woman who had an etonogestrel implant inserted 4 years earlier and wished to get pregnant. The implant was, however, deep in the triceps muscle and could not easily be removed. Her serum levels of etonogestrel remained positive even 6 years after insertion. As infertility investigation revealed endometriosis and bilateral tubal obstruction she was referred for assisted reproduction. Despite obtaining oocytes during an ovarian stimulation cycle, the endometrium was never above 4 mm, precluding embryo transfer. It was decided to remove the implant in order to improve endometrial conditions, after which the patient achieved pregnancy. CONCLUSION This case report suggests that the etonogestrel implant is effective for even longer than the most recent studies have shown.
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Affiliation(s)
- Bárbara C Ribeiro
- a Department of Obstetrics and Gynaecology , Hospital de Braga , Braga , Portugal
| | - Cristina Nogueira-Silva
- a Department of Obstetrics and Gynaecology , Hospital de Braga , Braga , Portugal.,b Life and Health Sciences Research Institute, School of Medicine , University of Minho , Braga , Portugal.,c Life and Health Sciences Research Institute/3B's PT Government Associate Laboratory , Braga/Guimarães , Portugal
| | - Hermínia Afonso
- a Department of Obstetrics and Gynaecology , Hospital de Braga , Braga , Portugal
| | - Pedro O Silva
- a Department of Obstetrics and Gynaecology , Hospital de Braga , Braga , Portugal
| | - Isabel D Reis
- a Department of Obstetrics and Gynaecology , Hospital de Braga , Braga , Portugal
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Trocado V, Barroso C, Nogueira-Silva C, Correia-Pinto J. Atrésia Esofágica: Um Desafio desde o Diagnóstico Pré-natal ao Tratamento Cirúrgico. Gaz Med 2018. [DOI: 10.29315/gm.v3i3.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A atrésia esofágica é a anomalia congénita mais comum do desenvolvimento do esófago, caracterizando-se por uma disrupção da sua continuidade, com uma prevalência de cerca de 1 em cada 2500 a 4500 nados vivos. A abordagem desta condição, desde o seu diagnóstico no período pré-natal até ao tratamento cirúrgico no período neonatal, constitui um importante desafio, tanto para o obstetra como para o cirurgião pediátrico. No âmbito do diagnóstico pré-natal, a ecografia, a ressonância magnética, bem como a análise bioquímica do líquido amniótico poderão ser úteis. Por outro lado, no que diz respeito ao tratamento cirúrgico desta condição, dispomos hoje de técnicas cirúrgicas minimamente invasivas, associadas a menor número de sequelas musculoesqueléticas, menor dor no pós-operatório e a um melhor resultado estético final. Neste artigo, os autores fazem uma revisão do papel das diferentes técnicas de diagnóstico pré-natal disponíveis, bem como das diferentes abordagens para o tratamento cirúrgico.
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27
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Piairo P, Moura R, Baptista M, Correia-Pinto J, Nogueira-Silva C. STATs in Lung Development: Distinct Early and Late Expression, Growth Modulation and Signaling Dysregulation in Congenital Diaphragmatic Hernia. Cell Physiol Biochem 2017; 45:1-14. [DOI: 10.1159/000486218] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 10/30/2017] [Indexed: 11/19/2022] Open
Abstract
Background: Congenital diaphragmatic hernia (CDH) is a life-threatening developmental anomaly, intrinsically combining severe pulmonary hypoplasia and hypertension. During development, signal transducers and activators of transcription (STAT) are utilized to elicit cell growth, differentiation, and survival. Methods: We used the nitrofen-induced CDH rat model. At selected gestational time points, lungs were divided into two experimental groups, i.e., control or CDH. We performed immunohistochemistry and western blotting analysis to investigate the developmental expression profile of the complete family of STATs (STAT1-6), plus specific STATs activation (p-STAT3, p-STAT6) and regulation by SOCS (SOCS3) in normal lungs against those of diseased lungs. The normal fetal lung explants were treated with piceatannol (STAT3 inhibitor) in vitro followed by morphometrical analysis. Results: Molecular profiling of STATs during the lung development revealed distinct early and late expression signatures. Experimental CDH altered the STATs expression, activation, and regulation in the fetal lungs. In particular, STAT3 and STAT6 were persistently over-expressed and early over-activated. Piceatannol treatment dose-dependently stimulated the fetal lung growth. Conclusion: These findings suggest that STATs play an important role during normal fetal lung development and CDH pathogenesis. Moreover, functionally targeting STAT signaling modulates fetal lung growth, which highlights that STAT3 and STAT6 signaling might be promising therapeutic targets in reducing or preventing pulmonary hypoplasia in CDH.
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28
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Pinto TM, Caldas F, Nogueira-Silva C, Figueiredo B. Maternal depression and anxiety and fetal-neonatal growth. J Pediatr (Rio J) 2017; 93:452-459. [PMID: 28219626 DOI: 10.1016/j.jped.2016.11.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 08/21/2016] [Revised: 11/09/2016] [Accepted: 11/10/2016] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVE Maternal depression and anxiety have been found to negatively affect fetal and neonatal growth. However, the independent effects of maternal depression and anxiety on fetal-neonatal growth outcomes and trajectories remain unclear. This study aimed to analyze simultaneously the effects of maternal prenatal depression and anxiety on (1) neonatal growth outcomes, and (2), on fetal-neonatal growth trajectories, from the 2nd trimester of pregnancy to childbirth. METHODS A sample of 172 women was recruited and completed self-reported measures of depression and anxiety during the 2nd and 3rd trimesters of pregnancy, and at childbirth. Fetal and neonatal biometrical data were collected from clinical reports at the same assessment moments. RESULTS Neonates of prenatally anxious mothers showed lower weight (p=0.006), length (p=0.025), and ponderal index (p=0.049) at birth than neonates of prenatally non-anxious mothers. Moreover, fetuses-neonates of high-anxiety mothers showed a lower increase of weight from the 2nd trimester of pregnancy to childbirth than fetuses-neonates of low-anxiety mothers (p<0.001). Considering maternal depression and anxiety simultaneously, only the effect of maternal anxiety was found on these markers of fetal-neonatal growth outcomes and trajectories. CONCLUSION This study demonstrates the independent longitudinal effect of maternal anxiety on major markers of fetal-neonatal growth outcomes and trajectories, simultaneously considering the effect of maternal depression and anxiety.
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Affiliation(s)
| | - Filipa Caldas
- Universidade do Minho, Escola de Ciências da Saúde, Braga, Portugal
| | - Cristina Nogueira-Silva
- Universidade do Minho, Escola de Ciências da Saúde, Instituto de Pesquisa em Ciências de Vida e Saúde (ICVS), Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; Hospital de Braga, Departamento de Obstetrícia e Ginecologia, Braga, Portugal
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29
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Machado D, Castro J, Martinez-de-Oliveira J, Nogueira-Silva C, Cerca N. Prevalence of bacterial vaginosis in Portuguese pregnant women and vaginal colonization by Gardnerella vaginalis. PeerJ 2017; 5:e3750. [PMID: 28875084 PMCID: PMC5580382 DOI: 10.7717/peerj.3750] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 06/21/2017] [Accepted: 08/08/2017] [Indexed: 12/03/2022] Open
Abstract
Background We aimed to determine the prevalence of vaginal colonization by Gardnerella vaginalis and of bacterial vaginosis (BV) in Portuguese pregnant women, and to identify risk factors for BV and G. vaginalis colonization in pregnancy. Methods A cross-sectional study was conducted among pregnant women aged ≥ 18 years who were attending in two public hospitals of the Northwest region of Portugal. Epidemiological data was collected by anonymous questionnaire. BV was diagnosed by Nugent criteria and G. vaginalis presence was identified by polymerase chain reaction. Crude associations between the study variables and BV or G. vaginalis colonization were quantified by odds ratios (ORs) and their 95% confidence intervals (CIs). Results The prevalences of BV and of G. vaginalis colonization among Portuguese pregnant women were 3.88% and 67.48%, respectively. Previous preterm delivery and colonization by G. vaginalis were factors with very high OR, but only statistically significant for a 90% CI. Conversely, higher rates of G. vaginalis colonization were found in women with basic educational level (OR = 2.77, 95% CI [1.33–5.78]), during the second trimester of pregnancy (OR = 6.12, 95% CI [1.80–20.85]) and with BV flora (OR = 8.73, 95% CI [0.50–153.60]). Discussion Despite the lower number of women with BV, prevalence ratios and association with risk factors were similar to recent European studies. However, the percentage of healthy women colonized by G. vaginalis was significantly higher than many previous studies, confirming that G. vaginalis colonization does not always lead to BV development.
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Affiliation(s)
- Daniela Machado
- Centre of Biological Engineering (CEB), Laboratory of Research in Biofilms Rosário Oliveira (LIBRO), University of Minho, Braga, Portugal
| | - Joana Castro
- Centre of Biological Engineering (CEB), Laboratory of Research in Biofilms Rosário Oliveira (LIBRO), University of Minho, Braga, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - José Martinez-de-Oliveira
- Women & Child Health Department, Centro Hospitalar Cova da Beira EPE, Covilhã, Portugal.,CICS-UBI, Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Cristina Nogueira-Silva
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal.,Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, Braga/Guimarães, Portugal
| | - Nuno Cerca
- Centre of Biological Engineering (CEB), Laboratory of Research in Biofilms Rosário Oliveira (LIBRO), University of Minho, Braga, Portugal
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Mota P, Carvalho-Dias E, Miranda A, Martinho O, Nogueira-Silva C, Alenina N, Bader M, Autorino R, Lima E, Correia-Pinto J. MP17-14 DEPLETION OF PERIPHERAL SEROTONIN SYNTHESIS INDUCES BENIGN PROSTATIC GROWTH IN MICE: MORE EVIDENCE FOR THE NEW “NEUROENDOCRINE THEORY” IN BPH ETIOLOGY. J Urol 2017. [DOI: 10.1016/j.juro.2017.02.603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ferreira H, Nogueira-Silva C, Miranda A, Correia-Pinto J. Resection of Sentinel Lymph Nodes by an Extraperitoneal Minilaparoscopic Approach Using Indocyanine Green for Uterine Malignancies. Surg Innov 2016; 23:347-53. [DOI: 10.1177/1553350615620302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background. The sentinel lymph node (SLN) concept might minimize surgical aggressiveness in cervical and endometrial malignancies. The aim of the study was to test the feasibility and reliability of minilaparoscopic extraperitoneal SLN excision after indocyanine green (ICG) cervical injection using a high-definition near infrared (NIR) imaging system in an in vivo porcine model. The same procedure was performed using conventional laparoscopic instruments and both outcomes were compared. Methods. Twenty-four animals were equally and randomly divided into a minilaparoscopic group (group A) and a 5-mm conventional laparoscopic group (group B). A high-definition NIR imaging system and a 30° ICG endoscope were used. First, ICG (0.5 mL) was injected in the paracervical region. The SLN coloring time was recorded. An extraperitoneal approach to the SLN was executed with the same CO2 retropneumoperitoneum pressures (10 mm Hg). In both groups, the times for SLN localization and excision, as well as complications, were registered. Finally, a laparotomy was then done to evaluate whether any stained SLN still remained. The same surgical team performed all experiments. Results. SLNs were identified and extraperitoneally excised in all animals without major complications. The SLN localization varied between animals from external iliac to preaortic regions. The surgical times were shorter with minilaparoscopy (39.3 ± 13 minutes) than with conventional 5-mm instruments (51.3 ± 14.17 minutes; P = .042). In group B, one stained SLN remained and was only detected by laparotomy. Conclusions. We confirmed the feasibility and reliability of extraperitoneal minilaparoscopic approach for identification, dissection, and excision of SLN using an NIR imaging system and ICG.
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Affiliation(s)
- Hélder Ferreira
- University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Portugal
- Centro Hospitalar do Porto, Porto, Portugal
| | - Cristina Nogueira-Silva
- University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Portugal
- Hospital de Braga, Braga, Portugal
| | - Alice Miranda
- University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Portugal
| | - Jorge Correia-Pinto
- University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Portugal
- Hospital de Braga, Braga, Portugal
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Ferreira H, Ferreira C, Nogueira-Silva C, Tomé A, Guimarães S, Correia-Pinto J. Minilaparoscopic Versus Conventional Laparoscopic Sacrocolpopexy: A Comparative Study. J Laparoendosc Adv Surg Tech A 2016; 26:386-92. [DOI: 10.1089/lap.2015.0381] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Hélder Ferreira
- Department of Obstetrics and Gynecology, Centro Hospitalar do Porto, Porto, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Carlos Ferreira
- Department of Urology, Hospital Pedro Hispano, Matosinhos, Portugal
| | - Cristina Nogueira-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, Guimarães, Portugal
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Antonio Tomé
- Department of Obstetrics and Gynecology, Centro Hospitalar do Porto, Porto, Portugal
| | - Serafim Guimarães
- Department of Obstetrics and Gynecology, Centro Hospitalar do Porto, Porto, Portugal
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, 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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Pereira-Terra P, Moura RS, Nogueira-Silva C, Correia-Pinto J. Neuroendocrine factors regulate retinoic acid receptors in normal and hypoplastic lung development. J Physiol 2015; 593:3301-11. [PMID: 26096456 DOI: 10.1113/jp270477] [Citation(s) in RCA: 13] [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] [Received: 03/05/2015] [Accepted: 05/29/2015] [Indexed: 01/09/2023] Open
Abstract
KEY POINTS Retinoic acid (RA) and ghrelin levels are altered in human hypoplastic lungs when compared to healthy lungs. Although considerable data have been obtained about RA, ghrelin and bombesin in the congenital diaphragmatic hernia (CDH) rat model, neuroendocrine factors have never been associated with the RA signalling pathway in this animal model. In this study, the interaction between neuroendocrine factors and RA was explored in the CDH rat model. The authors found that normal fetal lung explants treated with RA, bombesin and ghrelin showed an increase in lung growth. Hypoplastic lungs presented higher expression levels of the RA receptors α and γ. Moreover bombesin and ghrelin supplementation, in vitro, to normal lungs increased RA receptor α/γ expression whereas administration of bombesin and ghrelin antagonists to normal and hypoplastic lungs decreased it. These data reveal for the first time that there is a link between neuroendocrine factors and RA, and that neuroendocrine factors sensitise the lung to the RA action through RA receptor modulation. ABSTRACT Congenital diaphragmatic hernia (CDH) is characterised by a spectrum of lung hypoplasia and consequent pulmonary hypertension, leading to high morbidity and mortality rates. Moreover, CDH has been associated with an increase in the levels of pulmonary neuroendocrine factors, such as bombesin and ghrelin, and a decrease in the action of retinoic acid (RA). The present study aimed to elucidate the interaction between neuroendocrine factors and RA. In vitro analyses were performed on Sprague-Dawley rat embryos. Normal lung explants were treated with bombesin, ghrelin, a bombesin antagonist, a ghrelin antagonist, dimethylsulfoxide (DMSO), RA dissolved in DMSO, bombesin plus RA and ghrelin plus RA. Hypoplastic lung explants (nitrofen model) were cultured with bombesin, ghrelin, bombesin antagonist or ghrelin antagonist. The lung explants were analysed morphometrically, and retinoic acid receptor (RAR) α, β and γ expression levels were assessed via Western blotting. Immunohistochemistry analysis of RAR was performed in normal and hypoplastic lungs 17.5 days post-conception (dpc). Compared with the controls, hypoplastic lungs exhibited significantly higher RARα/γ expression levels. Furthermore considering hypoplastic lungs, bombesin and ghrelin antagonists decreased RARα/γ expression. Normal lung explants (13.5 dpc) treated with RA, bombesin plus RA, ghrelin plus RA, bombesin or ghrelin exhibited increased lung growth. Moreover, bombesin and ghrelin increased RARα/γ expression levels, whereas the bombesin and ghrelin antagonists decreased RARα/γ expression. This study demonstrates for the first time that neuroendocrine factors function as lung growth regulators, sensitising the lung to the action of RA through up-regulation of RARα and RARγ.
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Affiliation(s)
- Patrícia Pereira-Terra
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rute S Moura
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cristina Nogueira-Silva
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal.,Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
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Nogueira-Silva C, Costa P, Martins C, Barata S, Alho C, Calhaz-Jorge C, Osório F. Validation of the Portuguese Version of EHP-30 (The Endometriosis Health Profile-30). ACTA MEDICA PORT 2015; 28:347-56. [PMID: 26421788 DOI: 10.20344/amp.5778] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 08/31/2014] [Accepted: 05/11/2015] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Endometriosis Health Profile Questionnaire-30 is currently the most used questionnaire for quality of life measurement in women with endometriosis. The aim of this study is to evaluate the psychometric properties and to validate the Portuguese Endometriosis Health Profile Questionnaire-30 version. MATERIAL AND METHODS A sequential sample of 152 patients with endometriosis, followed in a Portugal reference center, were asked to complete a questionnaire on social and demographic features, the Portuguese version of the Endometriosis Health Profile Questionnaire-30 and of the Short Form Health Survey 36 Item â version 2. Appropriate statistical analysis was performed using descriptive statistics, factor analysis, internal consistency, item-total correlation and convergent validity. RESULTS Factorial analysis confirmed the validity of the five-dimension structure of the Endometriosis Health Profile Questionnaire-30 core questionnaire, which explained 83.2% of the total variance. All item-total correlations presented acceptable results and high internal consistency, with Cronbach's alpha ranging between 0.876 and 0.981 for the core questionnaire and between 0.863 and 0.951 for the modular questionnaire. Significant negative associations between similar scales of Endometriosis Health Profile Questionnaire-30 and Short Form Health Survey 36 Item â version 2 were demonstrated. Data completeness achieved was high for all dimensions. The emotional well-being scale in the core questionnaire and the infertility scale in the modular section had the highest median scores, and therefore the most negative impact on the quality of life of participating women. DISCUSSION The test-retest reliability and responsiveness of the questionnaire should be evaluated in future studies. CONCLUSION The present study demonstrates that the Portuguese version of the Endometriosis Health Profile Questionnaire-30 is a valid, reliable and acceptable tool for evaluating the health-related quality of life of Portuguese women with endometriosis.
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Affiliation(s)
- Cristina Nogueira-Silva
- Instituto de Investigação em Ciências da Vida e da Saúde. Escola de Ciências da Saúde. Universidade do Minho. Braga. Portugal. Instituto de Investigação em Ciências da Vida e da Saúde/3Bâs â Laboratório Associado do Governo Português. Braga/ Guimarães. Portugal. Serviço de Ginecologia e Obstetrícia. Hospital de Braga. Braga. Portugal
| | - Patrício Costa
- Instituto de Investigação em Ciências da Vida e da Saúde. Escola de Ciências da Saúde. Universidade do Minho. Braga. Portugal. Instituto de Investigação em Ciências da Vida e da Saúde/3Bâs â Laboratório Associado do Governo Português. Braga/ Guimarães. Portugal
| | | | - Sónia Barata
- Clínica Universitária de Obstetrícia e Ginecologia. Centro Hospitalar Lisboa Norte - Hospital Universitário de Santa Maria. Lisboa. Portugal
| | - Conceição Alho
- Clínica Universitária de Obstetrícia e Ginecologia. Centro Hospitalar Lisboa Norte - Hospital Universitário de Santa Maria. Lisboa. Portugal
| | - Carlos Calhaz-Jorge
- Clínica Universitária de Obstetrícia e Ginecologia. Centro Hospitalar Lisboa Norte - Hospital Universitário de Santa Maria. Lisboa. Portugal. Departamento de Obstetrícia e Ginecologia. Faculdade de Medicina. Universidade de Lisboa. Lisboa. Portugal
| | - Filipa Osório
- Clínica Universitária de Obstetrícia e Ginecologia. Centro Hospitalar Lisboa Norte - Hospital Universitário de Santa Maria. Lisboa. Portugal. Departamento de Obstetrícia e Ginecologia. Faculdade de Medicina. Universidade de Lisboa. Lisboa. Portugal
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Peixoto FO, Pereira-Terra P, Moura RS, Carvalho-Dias E, Correia-Pinto J, Nogueira-Silva C. The role of ephrins-B1 and -B2 during fetal rat lung development. Cell Physiol Biochem 2015; 35:104-15. [PMID: 25547331 DOI: 10.1159/000369679] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2014] [Indexed: 11/19/2022] Open
Abstract
UNLABELLED BACKGROUND/ AIMS: The knowledge of the molecular network that governs fetal lung branching is an essential step towards the discovery of novel therapeutic targets against pulmonary pathologies. Lung consists of two highly branched systems: airways and vasculature. Ephrins and its receptors, Eph, have been implicated in cardiovascular development, angiogenesis and vascular remodeling. This study aims to clarify the role of these factors during lung morphogenesis. METHODS Ephrins-B1, -B2 and receptor EphB4 expression pattern was assessed in fetal rat lungs between 15.5 and 21.5 days post-conception, by immunohistochemistry. Fetal rat lungs were harvested at 13.5 dpc, cultured during 4 days and treated with increasing doses of ephrins-B1 and -B2 and the activity of key signaling pathways was assessed. RESULTS Ephrin-B1 presents mesenchymal expression, whereas ephrin-B2 and its receptor EphB4 were expressed by the epithelium. Both ephrins stimulated pulmonary branching. Moreover, while ephrin-B1 did not affect the pathways studied, ephrin-B2 supplementation decreased activity of JNK, ERK and STAT. This study characterizes the expression pattern of ephrins-B1, -B2 and EphB4 receptor throughout rat lung development. CONCLUSION Our data highlight a possible role of ephrins as molecular stimulators of lung morphogenesis. Moreover, it supports the idea that classical vascular factors might play a role as airway growth promoters.
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Affiliation(s)
- Francisca O Peixoto
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
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Nogueira-Silva C, Santos-Ribeiro S, Barata S, Alho C, Osório F, Calhaz-Jorge C. [Total laparoscopic hysterectomy: retrospective analysis of 262 cases]. ACTA MEDICA PORT 2014; 27:73-81. [PMID: 24581196] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 10/09/2013] [Indexed: 06/03/2023]
Abstract
INTRODUCTION Hysterectomy is one of the most common gynecological procedures and may be performed either by vaginal approach, laparotomy or laparoscopy. Although total laparoscopic hysterectomy has multiple advantages, conflicting major complication rates have been previously reported. OBJECTIVES To describe our experience performing TLH and to evaluate complication rates. MATERIAL AND METHODS A retrospective observational study of all total laparoscopic hysterectomy performed in our department, by the same surgical team, between April 2009 and March 2013 (n = 262), was conducted. Medical records were reviewed for patient characteristics, operating time, uterine weight, post-operative hemoglobin variation, length of hospital stay, and intra and postoperative complications. RESULTS Patient average age was 48.9 ± 9.0 years and 49.2% had previous abdominopelvic surgery. The average body mass index was 26.5 ± 4.5 kg/m(2) and 42% of women were either overweight or obese. The mean operating time during the total study period was 77.7 ± 27.5 minutes, but it decreased significantly as the surgical team's training increased. Average uterine weight was 241.0 ± 168.4 g and average hospital stay was 1.49 ± 0.9 days. The mean postoperative hemoglobin variation was -1.5 ± 0.8 g/dL. The major and minor complication rates were 1.5% (n = 4) and 11.5% (n = 30), respectively. One procedure was converted to laparotomy and two women had a vaginal vault dehiscence. No important urinary tract or bowel injuries occurred. CONCLUSIONS This study demonstrates that, in experienced hands, total laparoscopic hysterectomy is safe and with low complications rates.
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Affiliation(s)
- Cristina Nogueira-Silva
- Serviço de Ginecologia e Obstetrícia. Hospital de Braga. Braga. & Instituto de Investigação em Ciências da Vida e da Saúde. Escola de Ciências da Saúde. Universidade do Minho. Braga. Portugal
| | - Samuel Santos-Ribeiro
- Departamento de Obstetrícia, Ginecologia e Medicina da Reprodução. Hospital de Santa Maria. Centro Hospitalar Lisboa Norte. Lisboa. & Faculdade de Medicina. Universidade de Lisboa. Lisboa. Portugal
| | - Sónia Barata
- Departamento de Obstetrícia, Ginecologia e Medicina da Reprodução. Hospital de Santa Maria. Centro Hospitalar Lisboa Norte. Lisboa. & Faculdade de Medicina. Universidade de Lisboa. Lisboa. Portugal
| | - Conceição Alho
- Departamento de Obstetrícia, Ginecologia e Medicina da Reprodução. Hospital de Santa Maria. Centro Hospitalar Lisboa Norte. Lisboa. & Faculdade de Medicina. Universidade de Lisboa. Lisboa. Portugal
| | - Filipa Osório
- Departamento de Obstetrícia, Ginecologia e Medicina da Reprodução. Hospital de Santa Maria. Centro Hospitalar Lisboa Norte. Lisboa. & Faculdade de Medicina. Universidade de Lisboa. Lisboa. Portugal
| | - Carlos Calhaz-Jorge
- Departamento de Obstetrícia, Ginecologia e Medicina da Reprodução. Hospital de Santa Maria. Centro Hospitalar Lisboa Norte. Lisboa. & Faculdade de Medicina. Universidade de Lisboa. Lisboa. Portugal
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Granja S, Morais-Santos F, Miranda-Gonçalves V, Viana-Ferreira M, Nogueira R, Nogueira-Silva C, Correia-Pinto J, Baltazar F. The monocarboxylate transporter inhibitor α-cyano-4-hydroxycinnamic acid disrupts rat lung branching. Cell Physiol Biochem 2013; 32:1845-56. [PMID: 24356196 DOI: 10.1159/000356617] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS The human embryo develops in a hypoxic environment. In this way, cells have to rely on the glycolytic pathway for energy supply, leading to an intracellular accumulation of monocarboxylates such as lactate and pyruvate. These acids have an important role in cell metabolism and their rapid transport across the plasma membrane is crucial for the maintenance of intracellular pH homeostasis. This transport is mediated by a family of transporters, designated by monocarboxylate transporters (MCTs), namely isoforms 1 and 4. MCT1/4 expression is regulated by the ancillary protein CD147.The general aim of this study was to characterize the expression pattern of MCT1/4, CD147 and the glucose transporter GLUT1 during human fetal lung development and elucidate the role of MCTs in lung development. METHODS The expression pattern of MCT1/4 and GLUT1 was characterized by immunohistochemistry and fetal lung viability and branching were evaluated by exposing rat fetal lung explants to CHC, an inhibitor of MCT activity. RESULTS Our findings show that all the biomarkers are differently expressed during fetal lung development and that CHC appears to have an inhibitory effect on lung branching and viability, in a dose dependent way. CONCLUSION We provide evidence for the role of MCTs in embryo lung development, however to prove the dependence of MCT activity further studies are waranted.
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Affiliation(s)
- Sara Granja
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
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Nogueira-Silva C, Piairo P, Carvalho-Dias E, Veiga C, Moura RS, Correia-Pinto J. The role of glycoprotein 130 family of cytokines in fetal rat lung development. PLoS One 2013; 8:e67607. [PMID: 23826327 PMCID: PMC3691159 DOI: 10.1371/journal.pone.0067607] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Accepted: 05/24/2013] [Indexed: 11/24/2022] Open
Abstract
The glycoprotein 130 (gp130) dependent family of cytokines comprises interleukin-6 (IL-6), IL-11, leukemia inhibitory factor (LIF), cardiotrophin-like cytokine (CLC), ciliary neurotrophic factor (CNTF), cardiotrophin-1 (CT-1) and oncostatin M (OSM). These cytokines share the membrane gp130 as a common signal transducer. Recently, it was demonstrated that IL-6 promotes, whereas LIF inhibits fetal lung branching. Thus, in this study, the effects on fetal lung morphogenesis of the other classical members of the gp130-type cytokines (IL-11, CLC, CNTF, CT-1 and OSM) were investigated. We also provide the first description of these cytokines and their common gp130 receptor protein expression patterns during rat lung development. Fetal rat lung explants were cultured in vitro with increasing concentrations of IL-11, CLC, CNTF, CT-1 and OSM. Treated lung explants were morphometrically analyzed and assessed for MAPK, PI3K/AKT and STAT3 signaling modifications. IL-11, which similarly to IL-6 acts through a gp130 homodimer receptor, significantly stimulated lung growth via p38 phosphorylation. On the other hand, CLC, CNTF, CT-1 and OSM, whose receptors are gp130 heterodimers, inhibited lung growth acting in different signal-transducing pathways. Thus, the present study demonstrated that although cytokines of the gp130 family share a common signal transducer, there are specific biological activities for each cytokine on lung development. Indeed, cytokine signaling through gp130 homodimers stimulate, whereas cytokine signaling through gp130 heterodimers inhibit lung branching.
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Affiliation(s)
- Cristina Nogueira-Silva
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Paulina Piairo
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Emanuel Carvalho-Dias
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Urology, Hospital de Braga, Braga, Portugal
| | - Carla Veiga
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rute S. Moura
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
- * E-mail:
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Nogueira-Silva C, Leitao TP, Osorio F. Bladder endometriosis: a diagnostic challenge. Assoc Med J 2013. [DOI: 10.1136/bmj.f3513] [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: 11/04/2022]
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Silva IH, Nogueira-Silva C, Figueiredo T, Lombo L, Faustino I, Catarino R, Nogueira A, Pereira D, Medeiros R. The impact of GGH -401C>T polymorphism on cisplatin-based chemoradiotherapy response and survival in cervical cancer. Gene 2013; 512:247-50. [DOI: 10.1016/j.gene.2012.10.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 10/10/2012] [Accepted: 10/16/2012] [Indexed: 10/27/2022]
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Pardal C, Barros N, Nogueira-Silva C, Rocha A, Serrano P, Pena DJ. M340 ENDOMETRIAL POLYPS IN ASYMPTOMATIC POSTMENOPAUSAL WOMEN: ARE THEY DANGEROUS? Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61531-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rodrigues F, Fernandes EV, Teixeira N, Nogueira-Silva C, Cruz E, da Pena DJ. W262 POST-PREGNANCY OSTEOPOROSIS WITH SEVERAL VERTEBRAL FRACTURES: A CASE REPORT. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61986-9] [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: 11/26/2022]
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Rodrigues F, Fernandes EV, Teixeira N, Nogueira-Silva C, Cruz E, da Pena DJ. O580 ROLE OF ULTRASOUND IN THE EARLY DETECTION OF HYDATIDIFORM MOLE. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61010-8] [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: 11/24/2022]
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Nogueira A, Catarino R, Faustino I, Nogueira-Silva C, Figueiredo T, Lombo L, Hilário-Silva I, Pereira D, Medeiros R. Role of the RAD51 G172T polymorphism in the clinical outcome of cervical cancer patients under concomitant chemoradiotherapy. Gene 2012; 504:279-83. [PMID: 22634097 DOI: 10.1016/j.gene.2012.05.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 05/17/2012] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Cervical cancer is one of the most common cancers diagnosed in women worldwide. Mammalian cells are constantly exposed to a wide variety of genotoxic agents from both endogenous and exogenous sources. The RAD51 protein is required for meiotic and mitotic recombination and plays a central role in homology-dependent recombinational repair of double-strand breaks (DSBs). Given the functional relevance of the DNA repair system on carcinogenesis, potential associations between genetic polymorphisms of DNA repair genes, cancer risk and response to therapy have been intensively evaluated. This is the first study evaluating the role of the RAD51 G172T genetic variants in cancer prognosis and clinical outcome of cervical cancer patients. MATERIAL AND METHODS We analyzed RAD51 G172T polymorphism genotypes in cervical cancer patients who underwent a platinum-based chemotherapy in combination with radiotherapy. Genotyping was performed by Taqman™ Allelic Discrimination methodology. RESULTS AND DISCUSSION Concerning the overall survival rates found using Kaplan-Meier method and Log Rank Test, we observed that the mean survival rates were statistically different according to the patients RAD51 genotypes. The group of patients carrying the T allele present a higher mean survival rate than the other patients (102.3months vs. 86.4months, P=0.020). Using the Cox regression analysis, we found an increased overall survival time for T-carrier patients, when compared with GG genotype, with tumor stage, age and presence of lymph nodes as covariates [hazard ratio (HR), 0.373; 95% CI, 0.181-0.770; P=0.008]. Among patients (n=193), RAD51 genotype frequency distributions were not under the influence of clinicopathologic characteristics, namely, treatment response (P=0.508), recurrence (P=0.150) and tumor stage (P=0.250). CONCLUSIONS This is the first study evaluating the role of the RAD51 G172T genetic variants in cancer prognosis and clinical outcome of cervical cancer patients. Our results indicate an influence of the RAD51 genetic variants in overall survival of cervical cancer. Thereby, RAD51 G172T genotypes may provide additional prognostic information in cervical cancer patients who underwent cisplatin-based chemotherapy in combination with radiotherapy.
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Affiliation(s)
- Augusto Nogueira
- Molecular Oncology GRP & Virology CI, Portuguese Institute of Oncology, Rua Dr. Ant. Bernardino Almeida, Porto, Portugal
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Nogueira-Silva C, Carvalho-Dias E, Piairo P, Nunes S, Baptista MJ, Moura RS, Correia-Pinto J. Local fetal lung renin-angiotensin system as a target to treat congenital diaphragmatic hernia. Mol Med 2012; 18:231-43. [PMID: 22113494 DOI: 10.2119/molmed.2011.00210] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2011] [Accepted: 11/17/2011] [Indexed: 11/06/2022] Open
Abstract
Antenatal stimulation of lung growth is a reasonable approach to treat congenital diaphragmatic hernia (CDH), a disease characterized by pulmonary hypoplasia and hypertension. Several evidences from the literature demonstrated a possible involvement of renin-angiotensin system (RAS) during fetal lung development. Thus, the expression pattern of renin, angiotensin-converting enzyme, angiotensinogen, type 1 (AT₁) and type 2 (AT₂) receptors of angiotensin II (ANGII) was assessed by immunohisto-chemistry throughout gestation, whereas the function of RAS in the fetal lung was evaluated using fetal rat lung explants. These were morphometrically analyzed and intracellular pathway alterations assessed by Western blot. In nitrofen-induced CDH model, pregnant rats were treated with saline or PD-123319. In pups, lung growth, protein/DNA ratio, radial saccular count, epithelial differentiation and lung maturation, vascular morphometry, right ventricular hypertrophy and overload molecular markers, gasometry and survival time were evaluated. Results demonstrated that all RAS components were constitutively expressed in the lung during gestation and that ANGII had a stimulatory effect on lung branching, mediated by AT₁ receptor, through p44/42 and Akt phosphorylation. This stimulatory effect on lung growth was mimicked by AT₂-antagonist (PD-123319) treatment. In vivo antenatal PD-123319 treatment increased lung growth, ameliorated indirect parameters of pulmonary hypertension, improved lung function and survival time in nonventilated CDH pups, without maternal or fetal deleterious effects. Therefore, this study demonstrated a local and physiologically active RAS during lung morphogenesis. Moreover, selective inhibition of AT₂ receptor is presented as a putative antenatal therapy for CDH.
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Affiliation(s)
- Cristina Nogueira-Silva
- Life and Health Sciences Research Institute-ICVS, School of Health Sciences, University of Minho, Braga, Portugal
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Nogueira-Silva C, Piairo P, Carvalho-Dias E, Peixoto FO, Moura RS, Correia-Pinto J. Leukemia inhibitory factor in rat fetal lung development: expression and functional studies. PLoS One 2012; 7:e30517. [PMID: 22291973 PMCID: PMC3264589 DOI: 10.1371/journal.pone.0030517] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 12/16/2011] [Indexed: 11/29/2022] Open
Abstract
Background Leukemia inhibitory factor (LIF) and interleukin-6 (IL-6) are members of the family of the glycoprotein 130 (gp130)-type cytokines. These cytokines share gp130 as a common signal transducer, which explains why they show some functional redundancy. Recently, it was demonstrated that IL-6 promotes fetal lung branching. Additionally, LIF has been implicated in developmental processes of some branching organs. Thus, in this study LIF expression pattern and its effects on fetal rat lung morphogenesis were assessed. Methodology/Principal Findings LIF and its subunit receptor LIFRα expression levels were evaluated by immunohistochemistry and western blot in fetal rat lungs of different gestational ages, ranging from 13.5 to 21.5 days post-conception. Throughout all gestational ages studied, LIF was constitutively expressed in pulmonary epithelium, whereas LIFRα was first mainly expressed in the mesenchyme, but after pseudoglandular stage it was also observed in epithelial cells. These results point to a LIF epithelium-mesenchyme cross-talk, which is known to be important for lung branching process. Regarding functional studies, fetal lung explants were cultured with increasing doses of LIF or LIF neutralizing antibodies during 4 days. MAPK, AKT, and STAT3 phosphorylation in the treated lung explants was analyzed. LIF supplementation significantly inhibited lung growth in spite of an increase in p44/42 phosphorylation. On the other hand, LIF inhibition significantly stimulated lung growth via p38 and Akt pathways. Conclusions/Significance The present study describes that LIF and its subunit receptor LIFRα are constitutively expressed during fetal lung development and that they have an inhibitory physiological role on fetal lung branching.
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Affiliation(s)
- Cristina Nogueira-Silva
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3Bs - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Paulina Piairo
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3Bs - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Emanuel Carvalho-Dias
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3Bs - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Urology, Hospital de São João, Porto, Portugal
| | - Francisca O. Peixoto
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3Bs - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rute S. Moura
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3Bs - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
- ICVS/3Bs - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
- * E-mail:
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Piairo P, Moura RS, Nogueira-Silva C, Correia-Pinto J. The apelinergic system in the developing lung: expression and signaling. Peptides 2011; 32:2474-83. [PMID: 22015267 DOI: 10.1016/j.peptides.2011.10.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Revised: 10/04/2011] [Accepted: 10/05/2011] [Indexed: 11/23/2022]
Abstract
Apelin and its receptor APJ constitute a signaling pathway best recognized as an important regulator of cardiovascular homeostasis. This multifunctional peptidergic system is currently being described to be involved in embryonic events which extend into vascular, ocular and heart development. Additionally, it is highly expressed in pulmonary tissue. Therefore, the aim of this study was to investigate the role of apelinergic system during fetal lung development. Immunohistochemistry and Western blot analysis were used to characterize apelin and APJ expression levels and cellular localization in normal fetal rat lungs, at five different gestational ages as well as in the adult. Fetal rat lung explants were cultured in vitro with increasing doses of apelin. Treated lung explants were morphometrically analyzed and assessed for MAPK signaling modifications. Both components of the apelinergic system are constitutively expressed in the developing lung, with APJ exhibiting monomeric, dimeric and oligomeric forms in the pulmonary tissue. Pulmonary epithelium also displayed constitutive nuclear localization of the receptor. Fetal apelin expression is higher than adult expression. Apelin supplementation inhibitory effect on branching morphogenesis was associated with a dose dependent decrease in p38 and JNK phosphorylation. The results presented provide the first evidence of the presence of an apelinergic system operating in the developing lung. Our findings also suggest that apelin inhibits fetal lung growth by suppressing p38 and JNK signaling pathways.
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Affiliation(s)
- Paulina Piairo
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
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Silva IH, Nogueira-Silva C, Figueiredo T, Lombo L, Faustino I, Catarino R, Nogueira A, Pereira D, Medeiros R. 8037 POSTER Linking XRCC1 Arg399Gln and GGH -401 C>T Polymorphisms to Cervical Cancer Risk. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72125-6] [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: 10/17/2022]
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Nunes S, Nogueira-Silva C, Dias E, Moura RS, Correia-Pinto J. Ghrelin and obestatin: different role in fetal lung development? Peptides 2008; 29:2150-8. [PMID: 18789988 DOI: 10.1016/j.peptides.2008.08.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Revised: 08/07/2008] [Accepted: 08/08/2008] [Indexed: 12/28/2022]
Abstract
Ghrelin and obestatin are two proteins that originate from post-translational processing of the preproghrelin peptide. Various authors claim an opposed role of ghrelin and obestatin in several systems. Preproghrelin mRNA is significantly expressed in airway epithelium throughout lung development, predominantly during the earliest stages. The aim of this study was to evaluate the role of ghrelin and obestatin in fetal lung development in vitro. Immunohistochemistry studies were performed at different gestational ages in order to clarify the expression pattern of ghrelin, GHS-R1a, obestatin and GPR39 during fetal lung development. Fetal rat lung explants were harvested at 13.5 days post-conception (dpc) and cultured during 4 days with increasing doses of total ghrelin, acylated ghrelin, desacyl-ghrelin, ghrelin antagonist (D-Lys(3)-GHRP-6) or obestatin. Immunohistochemistry studies demonstrated that ghrelin, GHS-R1a, obestatin and GPR39 proteins were expressed in primitive rat lung epithelium throughout all studied gestational ages. Total and acylated ghrelin supplementation significantly increased the total number of peripheral airway buds, whereas desacyl-ghrelin induced no effect. Moreover, GHS-R1a antagonist significantly decreased lung branching. Finally, obestatin supplementation induced no significant effect in the measured parameters. The present study showed that ghrelin has a positive effect in fetal lung development through its GHS-R1a receptor, whereas obestatin has no effect on lung branching.
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Affiliation(s)
- Susana Nunes
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
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Henriques-Coelho T, Oliveira SM, Moura RS, Roncon-Albuquerque R, Neves AL, Santos M, Nogueira-Silva C, La Fuente Carvalho F, Brandão-Nogueira A, Correia-Pinto J, Leite-Moreira AF. Thymulin inhibits monocrotaline-induced pulmonary hypertension modulating interleukin-6 expression and suppressing p38 pathway. Endocrinology 2008; 149:4367-73. [PMID: 18511508 DOI: 10.1210/en.2008-0018] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The pathogenesis of pulmonary hypertension (PH) includes an inflammatory response. Thymulin, a zinc-dependent thymic hormone, has important immunobiological effects by inhibiting various proinflammatory cytokines and chemokines. We investigated morphological and hemodynamic effects of thymulin administration in a rat model of monocrotaline (MCT)-induced PH, as well as the pattern of proinflammatory cytokine gene expression and the intracellular pathways involved. Adult Wistar rats received an injection of MCT (60 mg/kg, sc) or an equal volume of saline. One day after, the animals randomly received during 3 wk an injection of saline, vehicle (zinc plus carboxymethyl cellulose), or thymulin (100 ng/kg, sc, daily). At d 23-25, the animals were anesthetized for hemodynamic recordings, whereas heart and lungs were collected for morphometric and molecular analysis. Thymulin prevented morphological, hemodynamic, and inflammatory cardiopulmonary profile characteristic of MCT-induced PH, whereas part of these effects were also observed in MCT-treated animals injected with the thymulin's vehicle containing zinc. The pulmonary thymulin effect was likely mediated through suppression of p38 pathway.
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