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Rebelo Matos A, Martins A, Barbosa MJ, Quinteiro I, Faustino D, Gameiro R, Azevedo L. Adrenocorticotropin-Dependent Ectopic Cushing's Syndrome: A Case Report. Cureus 2023; 15:e49124. [PMID: 38125241 PMCID: PMC10732471 DOI: 10.7759/cureus.49124] [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] [Accepted: 11/19/2023] [Indexed: 12/23/2023] Open
Abstract
Paraneoplastic syndromes are rare and diverse conditions caused by either an abnormal chemical signaling molecule produced by tumor cells or a body's immune response against the tumor itself. These syndromes can manifest in a variable, multisystemic and often nonspecific manner posing a diagnostic challenge. We report the case of an 81-year-old woman who exhibited severe hypokalemia, metabolic alkalosis, and worsening hyperglycemia. The investigation was consistent with adrenocorticotropin (ACTH)-dependent Cushing's syndrome and, eventually, the patient was diagnosed with stage IV primary small-cell lung cancer (SCLC). SCLC is known to be associated with paraneoplastic syndromes, including Cushing's syndrome caused by ectopic adrenocorticotropin (ACTH) secretion. Despite being associated with very poor outcomes, managing these syndromes can be challenging and may hold prognostic significance.
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Affiliation(s)
- André Rebelo Matos
- Internal Medicine Department, Hospital São José, Centro Hospitalar Universitário de Lisboa Central, Entidades Públicas Empresariais (EPE), Lisbon, PRT
| | - André Martins
- Internal Medicine Department, Hospital São José, Centro Hospitalar Universitário de Lisboa Central, Entidades Públicas Empresariais (EPE), Lisbon, PRT
| | - Maria J Barbosa
- Internal Medicine Department, Hospital São José, Centro Hospitalar Universitário de Lisboa Central, Entidades Públicas Empresariais (EPE), Lisbon, PRT
| | - Inês Quinteiro
- Critical Care Medicine Department, Hospital São José, Centro Hospitalar Universitário de Lisboa Central, Entidades Públicas Empresariais (EPE), Lisbon, PRT
| | - Diogo Faustino
- Internal Medicine Department, Hospital São José, Centro Hospitalar Universitário de Lisboa Central, Entidades Públicas Empresariais (EPE), Lisbon, PRT
| | - Rita Gameiro
- Internal Medicine Department, Hospital São José, Centro Hospitalar Universitário de Lisboa Central, Entidades Públicas Empresariais (EPE), Lisbon, PRT
| | - Luísa Azevedo
- Internal Medicine Department, Hospital São José, Centro Hospitalar Universitário de Lisboa Central, Entidades Públicas Empresariais (EPE), Lisbon, PRT
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Muacevic A, Adler JR, Gameiro R, Salvado V, Dias L. Masked Polycythemia Vera and Iron Deficiency in a Fertile-Age Woman. Cureus 2023; 15:e33545. [PMID: 36779103 PMCID: PMC9907734 DOI: 10.7759/cureus.33545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2023] [Indexed: 01/11/2023] Open
Abstract
Polycythemia vera (PV) is a myeloproliferative disorder that leads to increased red blood cell (RBC) mass. The V617F activating mutation for Janus kinase 2 (JAK2) is a classic finding in PV, but it is not exclusive to this condition. The radionuclide assay is an accurate method for accessing RBC, but hemoglobin (Hb) and hematocrit (Htc) values are frequently the first abnormal markers reported in a routine blood count and the basis for further investigation. Diagnostic criteria for PV were recently updated to include lower thresholds for Hb and Htc, increasing diagnostic sensitivity. However, it has been reported that a subset of patients does not meet these thresholds, besides having an active masked disease. We are presenting a case of a fertile-age woman with menometrorrhagia, whose blood loss and consequent iron depletion worked as a limiting factor for Hb and Htc increase, delaying the proper diagnosis. Splenomegaly, iron deficiency markers, and low erythropoietin supported PV investigation. The correction of iron depletion led to the unveiling of covert erythrocytosis. Concomitant hemoglobinopathies and secondary causes for erythrocytosis were excluded. The diagnosis was confirmed with polymerase chain reaction (PCR) for V617F-JAK2 mutation and bone marrow biopsy. As this case highlights, despite not meeting diagnostic criteria at presentation, masked PV exhibited clinical, laboratory, and imaging features of active symptomatic disease. For that, a higher level of suspicion must be held for fertile-age women who present with normal Hb and Htc levels and significant iron depletion, in the presence of low serum erythropoietin or splenomegaly.
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Trabulo C, Lopes J, da Silva Dias D, Gramaça J, Fernandes I, Gameiro R, Pina I, Mäkitie A, Ottery F, Ravasco P. Assessment of nutritional status of oncology patients at hospital admission: A Portuguese real-world study. Front Nutr 2022; 9:972525. [PMID: 36159492 PMCID: PMC9500582 DOI: 10.3389/fnut.2022.972525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/19/2022] [Indexed: 11/13/2022] Open
Abstract
Background Nutritional status in patients with cancer has a determining role in the evolution of the disease and tolerance to treatments. Severity of undernutrition impacts morbidity and mortality in cancer patients and can limit patient response to the optimal therapies if nutritional issues are not appropriately addressed and managed. Despite the importance of malnutrition for the clinical evolution of oncology patients, there is not yet a universally accepted standard method for evaluating malnutrition in such patients. The aim of this study was to stratify the nutritional status of inpatients at an Oncology Department. Methods This is an observational study with 561 cancer patients, assessed at admission to a Medical Oncology Department from November 2016 to February 2020. All patients were considered eligible. Non-compliant and/or comatose patients were excluded. Nutritional status was assessed using the PG-SGA, BMI classified with the WHO criteria, and calculation of the percentage of weight loss in the previous 3–6 months. Results A total of 561 patients (303 F: 258 M; mean age 65 ± 13 years) were included. One-third of the patients, n=191/561 (34%), lost 6% of their weight in the month prior to admission and 297/561 (53%) patients lost 10.2% of weight in the previous 6 months. Mean BMI was 24.1 ± 5.8 kg/m2; N = 280/561 (50%) patients had regular BMI according to the WHO criteria. N = 331/561 (59%) patients reported eating less in the month prior to admission. N = 303/561 (54%) had moderate/severe deficits of muscle and adipose compartments. The PG-SGA identified 499/561 (89%) patients as moderately/severely malnourished, of which 466/561 (83%) patients scored ≥9 points, meeting criteria for a critical need for nutritional support. Fifteen percent of patients scored >4 points, indicating a need for directed therapy for symptom control and only 1% scored <2 points (maintenance nutritional counseling). Conclusion In this oncological setting, a higher proportion of patients were nutritionally-at-risk or with moderate/severe malnutrition. The large majority of patients in this study presented with a critical need for nutritional intervention. These findings highlight the need for an integrated assessment of nutritional status at patient referral. This will allow early and timely nutrition care, which is recommended to prevent or reverse further deterioration of the condition and to optimize treatment administration.
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Affiliation(s)
- Carolina Trabulo
- Centro Hospitalar do Barreiro Montijo, Barreiro, Portugal
- Centre for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, Lisbon, Portugal
- *Correspondence: Carolina Trabulo
| | - Joana Lopes
- Centro Hospitalar do Barreiro Montijo, Barreiro, Portugal
| | - David da Silva Dias
- Centre for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, Lisbon, Portugal
- Hospital Universitário Algarve, Faro, Portugal
| | - João Gramaça
- Centro Hospitalar do Barreiro Montijo, Barreiro, Portugal
| | | | - Rita Gameiro
- Centro Hospitalar do Barreiro Montijo, Barreiro, Portugal
| | - Idília Pina
- Centro Hospitalar do Barreiro Montijo, Barreiro, Portugal
| | - Antti Mäkitie
- Centre for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, Lisbon, Portugal
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Division of Ear, Nose and Throat Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institute and Karolinska University Hospital, Stockholm, Sweden
- Department of Otorhinolaryngology-Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Faith Ottery
- Department of Otorhinolaryngology-Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Paula Ravasco
- Centre for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, Lisbon, Portugal
- Católica Medical School, Universidade Católica Portuguesa, Lisbon, Portugal
- Clinical Research Unit, Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz, Cooperativa de Ensino Superior, CRL, Almada, Portugal
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Nogueira-Costa G, Fernandes I, Gameiro R, Gramaça J, Xavier AT, Pina I. Prognostic utility of neutrophil-to-lymphocyte ratio in patients with metastatic colorectal cancer treated using different modalities. Curr Oncol 2020; 27:237-243. [PMID: 33173374 PMCID: PMC7606052 DOI: 10.3747/co.27.6573] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Introduction Inflammation is a critical component in carcinogenesis. The neutrophil-to-lymphocyte ratio (nlr) has been retrospectively studied as a biomarker of prognosis in metastatic colorectal cancer (mcrc). Compared with a low nlr, a high nlr is associated with worse prognosis. In the present study, we compared real-world survival for patients with mcrc based on their nlr group, and we assessed the utility of the nlr in determining first-line chemotherapy and metastasectomy benefit. Methods In this retrospective and descriptive analysis of patients with mcrc undergoing first-line chemotherapy in a single centre, the last systemic absolute neutrophil and lymphocyte count before treatment was used for the nlr. A receiver operating characteristic curve was used to estimate the nlr cut-off value, dividing the patients into low and high nlr groups. Median overall survival (mos) was compared using Kaplan-Meier curves and the log-rank test. A multivariate analysis was performed using a Cox regression model. Results The 102 analyzed patients had a median follow-up of 15 months. Regardless of systemic therapy, approximately 20% of patients underwent metastasectomy. The nlr cut-off was established at 2.35, placing 45 patients in the low-risk group (nlr < 2.35) and 57 in the high-risk group (nlr ≥ 2.35). The Kaplan-Meier analysis showed a mos of 39.1 months in the low-risk group and 14.4 months in the high-risk group (p < 0.001). Multivariate Cox regression on the nlr estimated a hazard ratio of 3.08 (p = 0.01). Survival analysis in each risk subgroup, considering the history of metastasectomy, was also performed. In the low-risk group, mos was longer for patients undergoing metastasectomy than for those not undergoing the procedure (95.2 months vs. 22.6 months, p = 0.05). In the high-risk group, mos was not statistically different for patients undergoing or not undergoing metastasectomy (24.3 months vs. 12.7 months, p = 0.08). Conclusions Our real-world data analysis of nlr in patients with mcrc confirmed that this biomarker is useful in predicting survival. It also suggests that nlr is an effective tool to choose first-line treatment and to predict the benefit of metastasectomy.
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Affiliation(s)
| | - I Fernandes
- Centro Hospitalar Barreiro-Montijo, Barreiro, Portugal
| | - R Gameiro
- Centro Hospitalar Barreiro-Montijo, Barreiro, Portugal
| | - J Gramaça
- Centro Hospitalar Barreiro-Montijo, Barreiro, Portugal
| | - A T Xavier
- Centro Hospitalar Barreiro-Montijo, Barreiro, Portugal
| | - I Pina
- Centro Hospitalar Barreiro-Montijo, Barreiro, Portugal
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Nogueira-Costa G, Fernandes I, Guerra-Pereira N, Gameiro R, Gramaça J, Xavier A, Pina I. Neutrophil/lymphocyte ratio in metastatic colorectal cancer: real-world data for evidence of its prognostic role. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.065] [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: 11/13/2022] Open
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Cardoso TC, Ferreira HL, Okamura LH, Giroto TP, Oliveira BRSM, Fabri CUF, Gameiro R, Flores EF. Cellular response markers and cytokine gene expression in the central nervous system of cattle naturally infected with bovine herpesvirus 5. Vet J 2016; 218:71-77. [PMID: 27938713 DOI: 10.1016/j.tvjl.2016.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 02/29/2016] [Revised: 11/16/2016] [Accepted: 11/20/2016] [Indexed: 10/20/2022]
Abstract
The present study reports an investigation on the phenotype of inflammatory and immune cells, cytokine and viral gene expression in the brains of cattle naturally infected with bovine herpesvirus 5 (BHV5). Brain sections of 38 affected animals were analysed for the nature and extent of perivascular cuffs in the Virchow-Robin space and parenchyma. Histopathological changes were severe in the olfactory bulbs (Obs), hippocampus, piriform, frontal, temporal and parietal cortices/lobes and were characterized by inflammatory infiltrates in Virchow-Robin spaces. The histopathological changes correlated positively with the distribution of BHV5 antigens (r = 0.947; P < 0.005). Cells of CD3+ phenotype were predominant in areas with severe perivascular cuffs. Viral antigens and genomic viral DNA were detected in the Obs and piriform lobe, simultaneously (r = 0.987; P < 0.005). Similarly, pro-inflammatory cytokine genes INFG, IL2, TNF and LTBR were expressed in the same brain areas (P < 0.005). These results provide important information on the inflammatory and immunological events accompanying BHV5 neurological infections. Our findings provide the first evidence for increased immune activation followed by inflammatory cytokine expression, positively correlated with viral replication in the cranial areas of the brain. Taken together, these results suggest that the host immune response and inflammation play a crucial role in the pathogenesis of acute encephalitis by BHV5 in cattle.
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Affiliation(s)
- T C Cardoso
- Laboratory of Animal Virology and Cell Culture, College of Veterinary Medicine, Univ - Universidade Estadual Paulista, Araçatuba, São Paulo 16050-680, Brazil.
| | - H L Ferreira
- Department of Veterinary Medicine, FZEA-USP-University of Sao Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo 13635-900, Brazil
| | - L H Okamura
- Laboratory of Animal Virology and Cell Culture, College of Veterinary Medicine, Univ - Universidade Estadual Paulista, Araçatuba, São Paulo 16050-680, Brazil
| | - T P Giroto
- Laboratory of Animal Virology and Cell Culture, College of Veterinary Medicine, Univ - Universidade Estadual Paulista, Araçatuba, São Paulo 16050-680, Brazil
| | - B R S M Oliveira
- Laboratory of Animal Virology and Cell Culture, College of Veterinary Medicine, Univ - Universidade Estadual Paulista, Araçatuba, São Paulo 16050-680, Brazil
| | - C U F Fabri
- Laboratory of Animal Virology and Cell Culture, College of Veterinary Medicine, Univ - Universidade Estadual Paulista, Araçatuba, São Paulo 16050-680, Brazil
| | - R Gameiro
- Laboratory of Animal Virology and Cell Culture, College of Veterinary Medicine, Univ - Universidade Estadual Paulista, Araçatuba, São Paulo 16050-680, Brazil
| | - E F Flores
- Virology Section, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul 97115-900, Brazil
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Cardoso TC, Sakamoto SS, Stockmann D, Souza TFB, Ferreira HL, Gameiro R, Vieira FV, Louzada MJQ, Andrade AL, Flores EF. A three-dimensional cell culture system as an in vitro canine mammary carcinoma model for the expression of connective tissue modulators. Vet Comp Oncol 2016; 15:582-593. [PMID: 26991309 DOI: 10.1111/vco.12202] [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: 09/04/2015] [Revised: 10/22/2015] [Accepted: 11/03/2015] [Indexed: 11/27/2022]
Abstract
In this study, derived complex carcinoma (CC) and simple carcinoma (SC) cell lines were established and cultured under two-dimensional (2D) and three-dimensional (3D) conditions. The 3D was performed in six-well AlgiMatrix™ (LifeTechnologies®, Carlsbad, CA, USA) scaffolds, resulting in spheroids sized 50-125 µm for CC and 175-200 µm for SC. Cell viability was demonstrated up to 14 days for both models. Epidermal growth factor receptor (EGFR) was expressed in CC and SC in both systems. However, higher mRNA and protein levels were observed in SC 2D and 3D systems when compared with CC (P < 0.005). The connective tissue modulators, metalloproteinases-1, -2, -9 and -13 (MMPs), relaxin receptors 1 and 2 (RXR1 and RXR2) and E-cadherin (CDH1) were quantitated. All were upregulated similarly when canine mammary tumour (CMT)-derived cell lines were cultured under 3D AlgiMatrix, except CDH1 that was downregulated (P < 0.005). These results are promising towards the used of 3D system to increase a high throughput in vitro canine tumour model.
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Affiliation(s)
- T C Cardoso
- Veterinary Medicine School, Department of Support, Production and Animal Health, University of São Paulo State, Laboratory of Animal Virology and Cell Culture, Araçatuba, Brazil.,Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, Brazil
| | - S S Sakamoto
- Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, Brazil
| | - D Stockmann
- Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, Brazil
| | - T F B Souza
- Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, Brazil
| | - H L Ferreira
- Department of de Veterinary Medicine, Faculdade Zotecnia e Engenharia de Alimentos-USP, Pirassununga, SP, Brazil
| | - R Gameiro
- Veterinary Medicine School, Department of Support, Production and Animal Health, University of São Paulo State, Laboratory of Animal Virology and Cell Culture, Araçatuba, Brazil
| | - F V Vieira
- Veterinary Medicine School, Department of Support, Production and Animal Health, University of São Paulo State, Laboratory of Animal Virology and Cell Culture, Araçatuba, Brazil
| | - M J Q Louzada
- Veterinary Medicine School, Department of Support, Production and Animal Health, University of São Paulo State, Laboratory of Animal Virology and Cell Culture, Araçatuba, Brazil
| | - A L Andrade
- Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, Brazil
| | - E F Flores
- Department of Preventive Veterinary Medicine, Federal University of Santa Maria, Santa Maria, RS, Brazil
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Garcia JA, Ferreira HL, Vieira FV, Gameiro R, Andrade AL, Eugênio FR, Flores EF, Cardoso TC. Tumour necrosis factor-alpha-induced protein 8 (TNFAIP8) expression associated with cell survival and death in cancer cell lines infected with canine distemper virus. Vet Comp Oncol 2015; 15:336-344. [PMID: 26373887 DOI: 10.1111/vco.12168] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 06/17/2015] [Accepted: 07/29/2015] [Indexed: 02/06/2023]
Abstract
Oncolytic virotherapy is a novel strategy for treatment of cancer in humans and companion animals as well. Canine distemper virus (CDV), a paramyxovirus, has proven to be oncolytic through induction of apoptosis in canine-derived tumour cells, yet the mechanism behind this inhibitory action is poorly understood. In this study, three human mammary tumour cell lines and one canine-derived adenofibrosarcoma cell line were tested regarding to their susceptibility to CDV infection, cell proliferation, apoptosis, mitochondrial membrane potential and expression of tumour necrosis factor-alpha-induced protein 8 (TNFAIP8). CDV replication-induced cytopathic effect, decrease of cell proliferation rates, and >45% of infected cells were considered death and/or under late apoptosis/necrosis. TNFAIP8 and CDVM gene expression were positively correlated in all cell lines. In addition, mitochondrial membrane depolarization was associated with increase in virus titres (p < 0.005). Thus, these results strongly suggest that both human and canine mammary tumour cells are potential candidates for studies concerning CDV-induced cancer therapy.
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Affiliation(s)
- J A Garcia
- Veterinary Medicine School, Department of Support, Production and Animal Health, University of São Paulo State, Laboratory of Animal Virology and Cell Culture, Araçatuba, São Paulo, Brazil
| | - H L Ferreira
- FZEA-USP, Department of de Veterinary Medicine, Pirassununga, São Paulo, Brazil
| | - F V Vieira
- Veterinary Medicine School, Department of Support, Production and Animal Health, University of São Paulo State, Laboratory of Animal Virology and Cell Culture, Araçatuba, São Paulo, Brazil.,Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, São Paulo, Brazil
| | - R Gameiro
- Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, São Paulo, Brazil
| | - A L Andrade
- Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, São Paulo, Brazil
| | - F R Eugênio
- Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, São Paulo, Brazil
| | - E F Flores
- Department of Preventive Veterinary Medicine, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - T C Cardoso
- Veterinary Medicine School, Department of Support, Production and Animal Health, University of São Paulo State, Laboratory of Animal Virology and Cell Culture, Araçatuba, São Paulo, Brazil.,Veterinary Medicine School, Department of Clinical, Surgery and Animal Reproduction, University of São Paulo State, Veterinary Hospital Section, Araçatuba, São Paulo, Brazil
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Teixeira V, Coutinho I, Gameiro R, Vieira R, Gonçalo M. [Specific dermatoses of pregnancy]. ACTA MEDICA PORT 2013; 26:593-600. [PMID: 24192100] [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: 02/24/2013] [Accepted: 07/21/2013] [Indexed: 06/02/2023]
Abstract
During pregnancy immunological, metabolic, hormonal and vascular changes occur, and can cause specific skin diseases. The specific dermatoses of pregnancy have undergone numerous changes in nomenclature and classification, partly due to advances in the knowledge of the pathogenesis of these skin diseases. Currently the following diseases are considered specific dermatoses of pregnancy: pemphigoid gestations, polymorphic eruption of pregnancy, intrahepatic cholestasis of pregnancy and atopic eruption of pregnancy. Timely diagnosis and specific and safe treatment are essential to prevent complications which, although rare, may be associated with significant maternal-fetal comorbidity.
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Affiliation(s)
- Vera Teixeira
- Serviço de Dermatologia e Venereologia. Centro Hospitalar da Universidade de Coimbra. Coimbra. Portugal.
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Silva-Frade C, Gameiro R, Martins A, Cardoso TC. Apoptotic and developmental effects of bovine Herpesvirus type-5 infection on in vitro-produced bovine embryos. Theriogenology 2010; 74:1296-303. [PMID: 20688374 DOI: 10.1016/j.theriogenology.2010.06.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Revised: 05/31/2010] [Accepted: 06/01/2010] [Indexed: 11/26/2022]
Abstract
Bovine Herpesvirus type-5 (BoHV-5), which is potentially neuropathogenic, was recently described to be related with reproductive disorders in cows. The objective was to elucidate mechanisms involved in propagation of BoHV-5 in embryonic cells. For this purpose, bovine embryos produced in vitro were assayed for apoptotic markers after experimental infection of oocytes, in vitro fertilization, and development. Host DNA fragmentation was detected with a TUNEL assay, expression of annexin-V was measured with indirect immunofluorescence, and viral DNA was detected with in situ hybridization. Infective BoHV-5 virus was recovered from embryos derived from exposed oocytes after two consecutive passages on Madin-Darby bovine kidney (MDBK) cells. The viral DNA corresponding to US9 gene, localized between nucleotides 126243 to 126493, was detected in situ and amplified. There was no significant difference between the ratio of TUNEL stained nuclei and total cells in good quality blastocysts (0.87 ± 0.05, mean ± SD), but there were differences (P < 0.05) between infected (0.18 ± 0.05) and uninfected blastocysts (0.73 ± 0.07). The Annexin-V label was more intense in uninfected embryos (0.79 ± 0.04; P < 0.05). The quality of infected and uninfected embryos was considered equal, with no significant effect on embryonic development. In conclusion, we inferred that BoHV-5 infected bovine oocytes, replicated, and suppressed some apoptotic pathways, without significantly affecting embryonic development.
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Affiliation(s)
- C Silva-Frade
- Laboratory of Animal Virology, UNESP - University of São Paulo State, College of Veterinary Medicine, São Paulo, 16050-680, Brazil
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Abstract
A group of 14 women infected with hepatitis C virus (HCV) was evaluated for vaginal shedding of the virus. The HCV-RNA detection was performed in plasma, peripheral blood mononuclear cells (PBMC) and in supernatant and pellet of vaginal washings. HCV-RNA positive results were obtained in all plasma samples, in 57% of the PBMC samples, in 36% pellets obtained following centrifugation of vaginal washings and in 36% of the supernatants. In 21% of the women a positive result was found, at the same time, in every analysed product. The HCV genotypes identified in the plasma samples (1a: 38%; 1b: 36%; 3a: 13% and 1b+3a: 14%) matched with those in PBMC and vaginal washings in every sample, with the exception of cases where mixed infection (1b+3a) was detected. In these, genotype 1b was only detected in plasma. HCV viral load was not associated with the presence of HCV-RNA in PBMC or in vaginal washings (either cells or supernatant).
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Affiliation(s)
- R Gameiro
- Departamento Microbiologia, Faculdade de Ciências Médicas, UNL, Lisboa, Portugal.
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