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da Cunha Agostini L, de Paula W, Melo AS, Silva NNT, Faria Lopes AC, de Almeida Belo V, Coura-Vital W, de Medeiros Teixeira LF, Lima AA, da Silva GN. Single nucleotide polymorphism (SNP) rs4291 of the angiotensin-converting enzyme (ACE) gene is associated with the response to losartan treatment in hypertensive patients. Mol Biol Rep 2024; 51:458. [PMID: 38551694 DOI: 10.1007/s11033-024-09437-1] [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] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/11/2024] [Indexed: 04/02/2024]
Abstract
Arterial hypertension is characterized by systolic pressure ≥ 140 mmHg and/or diastolic pressure ≥ 90 mmHg and its treatment consists of the use of antihypertensive drugs, as losartan and hydrochlorothiazide. Blood pressure is regulated by angiotensin-converting enzyme (ACE) and polymorphisms in the ACE gene are associated to a greater predisposition to hypertension and response to treatment. The aim of this study was to evaluate the association of genetic polymorphisms of ACE rs4363, rs4291 and rs4335 and the response to antihypertensive drugs in hypertensive patients from Ouro Preto/MG, Brazil. A case-control study was carried out with 87 hypertensive patients being treated with losartan and 75 with hydrochlorothiazide, who answered a questionnaire and had blood samples collected. Biochemical analyzes were performed on serum using UV/Vis spectrophotometry and identification of ACE variants rs4363, rs4291 and rs4335 was performed by real-time PCR using the TaqMan® system. Univariate logistic regression test was performed to compare categorical data in STATA 13.0 software. The results showed that there was an influence of ACE polymorphisms on the response to losartan, demonstrating that AT or TT genotypes of rs4291 were more frequent in the group of controlled AH (54.9%), indicating that these individuals are 2.8 times more likely to of being controlled AH (95% CI 1.12-6.80, p. =0.026) compared to those with AA genotype. In contrast, no influence of ACE polymorphisms on the response to hydrochlorothiazide was observed. In conclusion, the presence of the T allele of the rs4291 variant was associated to controled blood pressure when losartan was used as an antihypertensive agent. These results show the importance of pharmacogenetic studies to detect genetic characteristics, enabling therapeutic individuality and reducing costs for the healthcare system.
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Affiliation(s)
- Lívia da Cunha Agostini
- Programa de Pós-Graduação em Ciências Farmacêuticas (CiPharma), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Waléria de Paula
- Programa de Pós-Graduação em Ciências Farmacêuticas (CiPharma), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - André Sacramento Melo
- Departamento de Análises Clínicas (DEACL), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | | | - Ana Cláudia Faria Lopes
- Departamento de Análises Clínicas (DEACL), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Vanessa de Almeida Belo
- Programa de Pós-Graduação em Ciências Farmacêuticas (CiPharma), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Departamento de Farmácia (DEFAR), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Wendel Coura-Vital
- Programa de Pós-Graduação em Ciências Farmacêuticas (CiPharma), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Departamento de Análises Clínicas (DEACL), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | | | - Angélica Alves Lima
- Programa de Pós-Graduação em Ciências Farmacêuticas (CiPharma), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Departamento de Análises Clínicas (DEACL), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Glenda Nicioli da Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas (CiPharma), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil.
- Departamento de Análises Clínicas (DEACL), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil.
- Departamento de Análises Clínicas (DEACL), Escola de Farmácia, Universidade Federal de Ouro Preto, Morro do Cruzeiro, s/n, Ouro Preto, MG, CEP 35402-163, Brazil.
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Silva Filho AM, Costa DS, Gheyi HR, Melo AS, Silva AARD, Nunes KG, Bonou SI, Souza AR, Ferraz RLS, Nascimento R. Photosynthetic pigments and quantum yield of West Indian cherry under salt stress and NPK combinations. BRAZ J BIOL 2023; 83:e277329. [PMID: 38055508 DOI: 10.1590/1519-6984.277329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 11/09/2023] [Indexed: 12/08/2023] Open
Abstract
West Indian cherry cultivation has proved to be an important economic activity in northeastern Brazil. However, irrigation with brackish waters limits cultivation, requiring new strategies to minimize the effect of salt stress. In this context, the present study aimed to evaluate the effect of nitrogen (N), phosphorus (P), and potassium (K) combinations on the photosynthetic pigments and quantum yield of West Indian cherry cultivated under salt stress, in the second year of production. The assay was conducted in a protected environment by adopting an experimental design in randomized blocks, with treatments distributed in a 2×10 factorial arrangement referring to two electrical conductivity levels of irrigation water - ECw (0.6 and 4.0 dS m-1) and 10 NPK fertilization combinations - FC (80-100-100; 100-100-100; 120-100-100; 140-100-100; 100-80-100; 100-120-100; 100-140-100; 100-100-80; 100-100-120, and 100-100-140% of the recommendation, in the second year of production), with three replications, each consisting of one plant. Irrigation with the electrical conductivity of 4.0 dS m-1 negatively affected the synthesis of photosynthetic pigments and the photochemical efficiency of the West Indian cherry cv. Flor Branca. The NPK combinations did not attenuate the effects of salt stress on the analyzed variables. However, the combinations referring to 120-100-100%, 140-100-100%, and 100-120-100% of NPK recommendation improved the quantum yield of photosystem II by reducing the initial fluorescence and increasing the maximum fluorescence of the West Indian cherry cv. Flor Branca.
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Affiliation(s)
- A M Silva Filho
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campus Campina Grande, Campina Grande, PB, Brasil
| | - D S Costa
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campus Campina Grande, Campina Grande, PB, Brasil
| | - H R Gheyi
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campus Campina Grande, Campina Grande, PB, Brasil
| | - A S Melo
- Universidade Estadual da Paraíba - UEPB, Programa de Pós-graduação em Ciências Agrárias - PPGCA, Campus Campina Grande, Campina Grande, PB, Brasil
| | - A A R da Silva
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campus Campina Grande, Campina Grande, PB, Brasil
| | - K G Nunes
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campus Campina Grande, Campina Grande, PB, Brasil
| | - S I Bonou
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campus Campina Grande, Campina Grande, PB, Brasil
| | - A R Souza
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campus Campina Grande, Campina Grande, PB, Brasil
| | - R L S Ferraz
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Tecnologia do Desenvolvimento, Campus Sumé, Sumé, PB, Brasil
| | - R Nascimento
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campus Campina Grande, Campina Grande, PB, Brasil
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Agostini LDC, Silva, NNT, Lopes ACF, Melo AS, Bicalho LSM, Almeida TC, Belo VDA, Coura-Vital W, Teixeira LFDM, Lima AA, da Silva GN. G Protein Subunit Beta 3 (GNB3) Variant Is Associated with Biochemical Changes in Brazilian Patients with Hypertension. Arq Bras Cardiol 2023; 120:e20230396. [PMID: 38126445 PMCID: PMC10789371 DOI: 10.36660/abc.20230396] [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: 06/14/2023] [Revised: 09/11/2023] [Accepted: 09/20/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Central Illustration : G Protein Subunit Beta 3 (GNB3) Variant Is Associated with Biochemical Changes in Brazilian Patients with Hypertension. BACKGROUND Genes and their variants associated with environmental factors contribute to the development of the hypertensive phenotype. The G protein beta 3 subunit gene (GNB3) is involved in the intracellular signaling process, and its variants have been related to susceptibility to arterial hypertension. OBJECTIVE To determine the association of the GNB3 variant (rs5443:C>T) with arterial hypertension, biochemical parameters, age, and obesity in hypertensive and normotensive individuals from Ouro Preto, Minas Gerais, Brazil. METHOD The identification of variants was performed by real-time PCR, using the TaqMan® system, in 310 samples (155 hypertensive and 155 normotensive). Biochemical analyses (renal function, lipid profile and glycemia) were performed from the serum using UV/Vis spectrophotometry and ion-selective electrode. A multiple logistic regression model was used to identify factors associated with arterial hypertension. The analysis of continuous variables with normal distribution was performed using the unpaired Student's t test; non-normal data were analyzed using Mann-Whitney. P < 0.05 was considered significant. RESULTS The rs5443:C>T variant was not associated with arterial hypertension in the evaluated population (p = 0.88). Regarding biochemical measures, the T allele was associated with high levels of triglycerides, glucose and uric acid in hypertensive individuals (p < 0.05). CONCLUSION These results show the importance of genetic diagnosis to prevent the causes and consequences of diseases and imply that the GNB3 rs5443:C>T variant may be associated with changes in the biochemical profile in hypertensive individuals.
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Affiliation(s)
- Lívia da Cunha Agostini
- Universidade Federal de Ouro PretoOuro PretoMGBrasil Universidade Federal de Ouro Preto (UFOP), Ouro Preto , MG – Brasil
| | - Nayara Nascimento Toledo Silva,
- Universidade Federal de Ouro PretoDepartamento de Análises ClínicasOuro PretoMGBrasil Universidade Federal de Ouro Preto (UFOP) – Departamento de Análises Clínicas (DEACL), Ouro Preto , MG – Brasil
| | - Ana Cláudia Faria Lopes
- Universidade Federal de Ouro PretoDepartamento de Análises ClínicasOuro PretoMGBrasil Universidade Federal de Ouro Preto (UFOP) – Departamento de Análises Clínicas (DEACL), Ouro Preto , MG – Brasil
| | - André Sacramento Melo
- Universidade Federal de Ouro PretoOuro PretoMGBrasil Universidade Federal de Ouro Preto (UFOP), Ouro Preto , MG – Brasil
| | - Luciana Soares Moreira Bicalho
- Universidade Federal de Ouro PretoOuro PretoMGBrasil Universidade Federal de Ouro Preto (UFOP), Ouro Preto , MG – Brasil
| | | | - Vanessa de Almeida Belo
- Universidade Federal de Ouro PretoCiPharmaDEFAROuro PretoMGBrasil Universidade Federal de Ouro Preto – Programa de Pós-Graduação em Ciências Farmacêuticas ( CiPharma ) – Departamento de Farmácia ( DEFAR ), Ouro Preto , MG – Brasil
| | - Wendel Coura-Vital
- Universidade Federal de Ouro PretoCiPharmaDEACLOuro PretoMGBrasil Universidade Federal de Ouro Preto – Programa de Pós-Graduação em Ciências Farmacêuticas ( CiPharma ) – Departamento de Análises Clínicas ( DEACL ), Ouro Preto , MG – Brasil
| | - Luiz Fernando de Medeiros Teixeira
- Universidade Federal de Ouro PretoDepartamento de Análises ClínicasOuro PretoMGBrasil Universidade Federal de Ouro Preto (UFOP) – Departamento de Análises Clínicas (DEACL), Ouro Preto , MG – Brasil
| | - Angélica Alves Lima
- Universidade Federal de Ouro PretoCiPharmaDEACLOuro PretoMGBrasil Universidade Federal de Ouro Preto – Programa de Pós-Graduação em Ciências Farmacêuticas ( CiPharma ) – Departamento de Análises Clínicas ( DEACL ), Ouro Preto , MG – Brasil
| | - Glenda Nicioli da Silva
- Universidade Federal de Ouro PretoCiPharmaDEACLOuro PretoMGBrasil Universidade Federal de Ouro Preto – Programa de Pós-Graduação em Ciências Farmacêuticas ( CiPharma ) – Departamento de Análises Clínicas ( DEACL ), Ouro Preto , MG – Brasil
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Almeida TC, Melo AS, Lima APB, Branquinho RT, da Silva GN. Resveratrol induces the production of reactive oxygen species, interferes with the cell cycle, and inhibits the cell migration of bladder tumour cells with different TP53 status. Nat Prod Res 2023; 37:3838-3843. [PMID: 36441214 DOI: 10.1080/14786419.2022.2151007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 11/08/2022] [Accepted: 11/15/2022] [Indexed: 11/29/2022]
Abstract
Resveratrol is a polyphenolic compound whose antitumor activity has been demonstrated in several types of cancer. However, there are few studies on its molecular mechanisms of action in bladder cancer. Therefore, we aimed to evaluate resveratrol activity in bladder tumour cells with different TP53 gene status. Cytotoxicity, cell proliferation, reactive oxygen species (ROS) production, cell migration, mutagenicity, and CDH1, CTNNBIP1, HAT1, HDAC1, MYC, and SMAD4 gene expression were evaluated. An increase in ROS after resveratrol treatment was accompanied by reduced cell viability and proliferation in all cell lines. In TP53 wild-type cells, the inhibition of cell migration was accompanied by CDH1 and SMAD4 modulation. In TP53 mutated cells, cell migration inhibition with CDH1 and CTNNB1P1 upregulation was observed. In conclusion, resveratrol has antiproliferative effect in bladder tumour cells and its mechanism of action occurred through ROS production, interference with cell cycle, and inhibition of cell migration, independent of TP53 status.
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Affiliation(s)
- Tamires Cunha Almeida
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | | | - Ana Paula Braga Lima
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Renata Tupinambá Branquinho
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Glenda Nicioli da Silva
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Programa de Pós-graduação em Ciências Biológicas (CBIOL), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
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Lima APB, Melo AS, Ferreira GM, da Silva GN. Chrysin inhibits the cell viability, induces apoptosis and modulates expression of genes related to epigenetic events in bladder cancer cells. Nat Prod Res 2022; 37:1877-1881. [PMID: 36093567 DOI: 10.1080/14786419.2022.2121825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
This study was conducted with the aim of exploring the molecular and cellular mechanisms of action of the chrysin (natural flavonoid compound) on bladder tumour cell lines with different status of TP53 (RT4, 5637 and T24). The cells were treated with different concentrations of chrysin (20, 40, 60, 80 and 100 µM) to analyze the cell viability, nuclear division index, mutagenicity, apoptosis rates and expression of genes related to epigenetic events (DNMT1, HAT1 and HDAC1). Results showed that the treatment with chrysin reduced the cell viability and caused apoptosis, regardless TP53. Moreover, in the TP53-mutated cell lines, chrysin modulated the expression of the DNMT1, HAT1 and HDAC1 epigenetic genes, which might be a plus to the death observed in the cells with p53 mutation.
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Affiliation(s)
- Ana Paula Braga Lima
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - André Sacramento Melo
- Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Gabriel Monteze Ferreira
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Glenda Nicioli da Silva
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
- Programa de Pós-Graduação em Ciências Biológicas (CBIOL), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
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Soares LBM, Lima APB, Melo AS, Almeida TC, de Medeiros Teixeira LF, da Silva GN. Additive effects of resveratrol and doxorubicin on bladder cancer cells. Anticancer Drugs 2022; 33:e389-e397. [PMID: 34486536 DOI: 10.1097/cad.0000000000001218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The treatment of bladder cancer remains a challenge in clinical practice. Different chemotherapeutic protocols can be used; however, it is common to observe tumor recurrence and secondary effects that result in toxicity. Doxorubicin (DOX), one of the most effective anticancer agents used to treat bladder cancer, can cause chronic cardiotoxicity, limiting its use in clinical practice. Resveratrol (RES), a natural product with potential antitumor activity against bladder cancer, is associated with rapid metabolism and low bioavailability and needs to be combined with chemotherapeutic drugs to improve its use. Our study aimed to assess the therapeutic effect of a low concentration of DOX (2 µM) in combination with RES (150, 200 and 250 µM) on two bladder cancer cell lines. We investigated the mechanism of interaction between the drugs by performing cytotoxicity, clonogenic, oxidative stress, cell migration, cell morphology and nuclear division index (NDI) assays. Cytotoxicity evaluation revealed an additive interaction between RES and DOX for both cell lines. Additionally, the results of cell colony formation, oxidative stress, cell migration, cell morphology and NDI assays showed that a combination of DOX and RES was more effective than RES or DOX alone. In conclusion, a low concentration of DOX combined with RES could potentiate the antitumor effects of the drugs on bladder cancer cells, thus overcoming the secondary effects caused by DOX and the low bioavailability of resveratrol.
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Affiliation(s)
| | - Ana Paula Braga Lima
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais
| | - André Sacramento Melo
- Escola de Farmácia, Departamento de Análises Clínicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais
| | - Tamires Cunha Almeida
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais
| | | | - Glenda Nicioli da Silva
- Escola de Farmácia, Departamento de Análises Clínicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais
- Programa de Pós-graduação em Ciência Biológicas (CBIOL), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
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Sá FVS, Oliveira FS, Torres SB, Paiva EP, Nogueira NW, Sarmento ECS, Melo AS. Hydric and saline stress on Phaseolus lunatus L. seeds. BRAZ J BIOL 2021; 82:e233550. [PMID: 34133547 DOI: 10.1590/1519-6984.233550] [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] [Received: 01/30/2020] [Accepted: 11/17/2020] [Indexed: 11/21/2022] Open
Affiliation(s)
- F V S Sá
- Universidade Federal do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - F S Oliveira
- Universidade Federal do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - S B Torres
- Universidade Federal do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - E P Paiva
- Universidade Federal do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - N W Nogueira
- Universidade Federal do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - E C S Sarmento
- Universidade Federal do Ceará - UFC, Departamento de Fitotecnia, Fortaleza, CE, Brasil
| | - A S Melo
- Universidade Estadual da Paraíba - UEPB, Departamento de Ciências Biológicas, Campina Grande, PB, Brasil
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Fernandes CS, Sá FVS, Ferreira Neto M, Dias NS, Reges LBL, Gheyi HR, Paiva EP, Silva AA, Melo AS. Ionic homeostasis, biochemical components and yield of Italian zucchini under nitrogen forms and salt stress. BRAZ J BIOL 2021; 82:e233567. [PMID: 34105657 DOI: 10.1590/1519-6984.233567] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 11/03/2020] [Indexed: 11/22/2022] Open
Abstract
This research was carried out aiming at evaluating the effects of nitrate and ammonium ions on nutrient accumulation, biochemical components and yield of Italian zucchini (cv. Caserta) grown in a hydroponic system under salt stress conditions. The experiment was carried out in a greenhouse utilizing an experimental design in randomized blocks, arranged in a 2 x 5 factorial scheme, with 4 replications. The treatments consisted of two forms of nitrogen (nitrate - NO3- and ammonium - NH4+) and 5 electrical conductivity levels of irrigation water (ECw) (0.5, 2.0, 3.5, 5.0 and 6.5 dS m-1). The analysis of the results indicated that supply of N exclusively in NH4+ form promotes greater damage to the leaf membrane and reduction in accumulation of macronutrients and higher Na+/K+, Na+/Ca++ and Na+/Mg++ ratios in the shoots of zucchini plants. Electrical conductivity of irrigation water above 2.0 dS m-1 reduces the accumulation of nutrients in shoot and yield of Italian zucchini plant. The toxicity of NH4+ under Italian zucchini plants overlap the toxicity of the salinity, since its fertilization exclusively with this form of nitrogen inhibits its production, being the NO3- form the most suitable for the cultivation of the species.
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Affiliation(s)
- C S Fernandes
- Universidade Federal Rural do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - F V S Sá
- Universidade Federal Rural do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - M Ferreira Neto
- Universidade Federal Rural do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - N S Dias
- Universidade Federal Rural do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - L B L Reges
- Universidade Federal Rural do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - H R Gheyi
- Universidade Federal do Recôncavo da Bahia- UFRB, Centro de Ciências Agrárias, Ambientais e Biológicas, Cruz da Almas, BA, Brasil
| | - E P Paiva
- Universidade Federal Rural do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - A A Silva
- Universidade Federal Rural do Semi-Árido - UFERSA, Centro de Ciências Agrárias, Mossoró, RN, Brasil
| | - A S Melo
- Universidade Estadual da Paraíba - UEPB, Departamento de Biologia, Campina Grande, PB, Brasil
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Kamamoto CSL, Nishikaku AS, Gompertz OF, Melo AS, Hassun KM, Bagatin E. Cutaneous fungal microbiome: Malassezia yeasts in seborrheic dermatitis scalp in a randomized, comparative and therapeutic trial. Dermatoendocrinol 2017; 9:e1361573. [PMID: 29484095 PMCID: PMC5821162 DOI: 10.1080/19381980.2017.1361573] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 07/26/2017] [Indexed: 01/26/2023]
Abstract
Malassezia spp in skin microbiome scalp has been implicated in seborrheic dermatitis pathogenesis. Thus, treatment based in antifungal combined to topical keratolitic agents have been indicated as well as oral isotretinoin as it reduces the sebum production, glandular's size and possesses anti-inflammatory properties. This randomized, comparative and therapeutic trial aimed toper form the genotypic identification of Malassezia species before and after low-dose oral isotretinoin or topical antifungal treatments for moderate to severe seborrhea and/or seborrheic dermatitis on scalp. Scales and sebum of the scalp were seeded in the middle of modified Dixon and incubated at 32°C. For genotypic identification polymerase chain reaction primers for the ITS and D1/D2 ribossomal DNA were used and followed by samples sequencing. The procedure was conducted before and after therapeutic and randomized intervention for moderate to severe seborrhea/seborrheic dermatitis on the scalp, including oral isotretinoin, 10 mg, every other day and anti-seborrheic shampoo (piroctone olamine), over six months. The M. globosa and M. restricta were the most frequent species isolated on the scalp before and after both treatments. Other non-Malassezia species were also identified. The Malassezia spp. were maintained in the scalp after both treatments that were equally effective for the control of seborrhea/seborrheic dermatitis clinical signs.
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Affiliation(s)
- C S L Kamamoto
- Department of Dermatology, Federal University of Sao Paulo (UNIFESP), São Paulo, SP, Brazil
| | - A S Nishikaku
- Department of Medicine, Special Mycology Laboratory, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
| | - O F Gompertz
- Department of Microbiology, Immunology and Parasitology, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
| | - A S Melo
- Department of Medicine, Special Mycology Laboratory, Federal University of Sao Paulo (UNIFESP), Sao Paulo, SP, Brazil
| | - K M Hassun
- Department of Dermatology, Federal University of Sao Paulo (UNIFESP), São Paulo, SP, Brazil
| | - E Bagatin
- Department of Dermatology, Federal University of Sao Paulo (UNIFESP), São Paulo, SP, Brazil
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Barbosa FG, Schneck F, Melo AS. Use of ecological niche models to predict the distribution of invasive species: a scientometric analysis. BRAZ J BIOL 2013; 72:821-9. [PMID: 23295510 DOI: 10.1590/s1519-69842012000500007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 01/25/2012] [Indexed: 03/28/2023] Open
Abstract
We conducted a scientometric analysis to determine the main trends and gaps of studies on the use of ecological niche models (ENMs) to predict the distribution of invasive species. We used the database of the Thomson Institute for Scientific Information (ISI). We found 190 papers published between 1991 and 2010 in 82 journals. The number of papers was low in the 1990s, but began to increase after 2003. One-third of the papers were published by researchers from the United States of America, and consequently, the USA was also the most studied region. The majority of studies were carried out in terrestrial environments, while only a few investigated aquatic systems, probably because important aquatic predictor variables are scarce or unavailable for most regions in the world. Species-occurrence records were mainly composed of presence-only records, and almost 70% of the studies were carried out with plants and insects. Twenty-three different distribution modelling methods were used. The Genetic Algorithm for Rule-set Production (GARP) was used most often. Our scientometric analysis showed a growing interest in the use of ENMs to predict the distribution of invasive species, especially in the last decade, which is probably related to the increase in species introductions worldwide. Among some important gaps that need to be filled, the relatively small number of studies conducted in developing countries and in aquatic environments deserves careful attention.
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Affiliation(s)
- F G Barbosa
- Programa de Pós-graduação em Ecologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul - UFRGS, CP 15007, CEP 91501-970, Porto Alegre, RS, Brazil.
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11
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Melo AS. The risk of developing repetitive stress injury in seamstresses, in the clothing industry, under the perspective of ergonomic work analysis: a case study. Work 2012; 41 Suppl 1:1670-6. [PMID: 22316954 DOI: 10.3233/wor-2012-0369-1670] [Citation(s) in RCA: 5] [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: 11/15/2022] Open
Abstract
This study presents the sewing task with the approach of the ergonomic analysis of the work, in the seam activity in a clothing industry to identify the relationship between the use of different sewing machines and the activity of sewing pants and blouses, which brings larger risk for the development of work related musculoskeletal disorders. It was done a study of transverse and exploratory cut, in that was used a methodology control of multiple analysis of variables. The population objective was the workers that exercise the activity in the section of makings, with 93 workers, being 54,8% sewing auxiliary and 45,2% dressmakers. Most is single (75,3%), has the 2nd complete degree (58,0%) and the medium age was 25 years old. As results were observed that the machines serger, zig zag and traveti are classified as of high risk of developing work related to musculoskeletal disorders, that the postures assumed during the execution of the tasks were classified as bad or terrible, and that the workstations were just classified as reasonable. It was concluded then, that a relationship exists among the task of sewing pants and blouses, and the risk of the development of work related to musculoskeletal disorders.
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Affiliation(s)
- A S Melo
- Superintendência Regional do Trabalho na Paraíba, Ministério do Trabalho e Emprego, Praça Venâncio Neiva, 11, Centro, 58010-011, João Pessoa, Paraíba, Brasil, Phone:55 83 93420596
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12
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Melo AS, Vieira CS, Barbieri MA, Rosa-E-Silva ACJS, Silva AAM, Cardoso VC, Reis RM, Ferriani RA, Silva-de-Sá MF, Bettiol H. High prevalence of polycystic ovary syndrome in women born small for gestational age. Hum Reprod 2010; 25:2124-31. [PMID: 20573680 DOI: 10.1093/humrep/deq162] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND There is evidence that intrauterine growth restriction, resulting in newborn girls that are small for gestational age (SGA), may be related to the onset of polycystic ovary syndrome (PCOS). Thus, we studied whether women born SGA have a higher prevalence of PCOS than women born appropriate for gestational age (AGA). METHODS This was a prospective birth cohort study of 384 women born at term between June 1, 1978, and May 31, 1979, in Ribeirão Preto, Brazil. After exclusion, 165 women effectively participated in this study, of whom 43 were SGA and 122 were AGA. The prevalence of PCOS was analysed. At a mean age of 29 years, the women agreed to follow the study protocol, which included: anamnesis, physical examination, serum tests [follicle stimulating hormone, luteinizing hormone, total and free testosterone, dehydroepiandrostenedione sulphate, 17-OH-progesterone, fasting insulin, sex steroid-binding globulin (SHBG) and fasting glucose] and pelvic ultrasound. Data regarding gestational age, birthweight, age at menarche and maternal data were obtained from the files of the cohort. The adjusted relative risk (RR) values of the SGA, insulin resistance, body mass index, maternal smoking and parity variables were analysed using Poisson regression with robust adjustment of variance for the prediction of PCOS. RESULTS The prevalence of PCOS was higher in the SGA group than in the AGA group [adjusted RR = 2.44, 95% CI (1.39-4.28)]. Hyperandrogenism was more prevalent in the SGA women than in the AGA women (P = 0.011). Circulating SHBG was lower in the SGA women than in the AGA women (P = 0.041), but fasting insulinemia was similar in both groups. CONCLUSIONS The prevalence of PCOS in SGA women was twice as high as in AGA women in our study population.
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Affiliation(s)
- A S Melo
- Department of Obstetrics and Gynaecology, Medical School of Ribeirão Preto, University of São Paulo, Avenida Bandeirantes 3900, Campus Universitário, Monte Alegre, CEP-14049-900, Ribeirão Preto, SP, Brazil
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Camargo AA, Samaia HP, Dias-Neto E, Simão DF, Migotto IA, Briones MR, Costa FF, Nagai MA, Verjovski-Almeida S, Zago MA, Andrade LE, Carrer H, El-Dorry HF, Espreafico EM, Habr-Gama A, Giannella-Neto D, Goldman GH, Gruber A, Hackel C, Kimura ET, Maciel RM, Marie SK, Martins EA, Nobrega MP, Paco-Larson ML, Pardini MI, Pereira GG, Pesquero JB, Rodrigues V, Rogatto SR, da Silva ID, Sogayar MC, Sonati MF, Tajara EH, Valentini SR, Alberto FL, Amaral ME, Aneas I, Arnaldi LA, de Assis AM, Bengtson MH, Bergamo NA, Bombonato V, de Camargo ME, Canevari RA, Carraro DM, Cerutti JM, Correa ML, Correa RF, Costa MC, Curcio C, Hokama PO, Ferreira AJ, Furuzawa GK, Gushiken T, Ho PL, Kimura E, Krieger JE, Leite LC, Majumder P, Marins M, Marques ER, Melo AS, Melo MB, Mestriner CA, Miracca EC, Miranda DC, Nascimento AL, Nobrega FG, Ojopi EP, Pandolfi JR, Pessoa LG, Prevedel AC, Rahal P, Rainho CA, Reis EM, Ribeiro ML, da Ros N, de Sa RG, Sales MM, Sant'anna SC, dos Santos ML, da Silva AM, da Silva NP, Silva WA, da Silveira RA, Sousa JF, Stecconi D, Tsukumo F, Valente V, Soares F, Moreira ES, Nunes DN, Correa RG, Zalcberg H, Carvalho AF, Reis LF, Brentani RR, Simpson AJ, de Souza SJ, Melo M. The contribution of 700,000 ORF sequence tags to the definition of the human transcriptome. Proc Natl Acad Sci U S A 2001; 98:12103-8. [PMID: 11593022 PMCID: PMC59775 DOI: 10.1073/pnas.201182798] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Open reading frame expressed sequences tags (ORESTES) differ from conventional ESTs by providing sequence data from the central protein coding portion of transcripts. We generated a total of 696,745 ORESTES sequences from 24 human tissues and used a subset of the data that correspond to a set of 15,095 full-length mRNAs as a means of assessing the efficiency of the strategy and its potential contribution to the definition of the human transcriptome. We estimate that ORESTES sampled over 80% of all highly and moderately expressed, and between 40% and 50% of rarely expressed, human genes. In our most thoroughly sequenced tissue, the breast, the 130,000 ORESTES generated are derived from transcripts from an estimated 70% of all genes expressed in that tissue, with an equally efficient representation of both highly and poorly expressed genes. In this respect, we find that the capacity of the ORESTES strategy both for gene discovery and shotgun transcript sequence generation significantly exceeds that of conventional ESTs. The distribution of ORESTES is such that many human transcripts are now represented by a scaffold of partial sequences distributed along the length of each gene product. The experimental joining of the scaffold components, by reverse transcription-PCR, represents a direct route to transcript finishing that may represent a useful alternative to full-length cDNA cloning.
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Affiliation(s)
- A A Camargo
- Ludwig Institute for Cancer Research, 01509-010, São Paulo, Brazil
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Melo AS, Andrade CF. Differential predation of the planarian Dugesia tigrina on two mosquito species under laboratory conditions. J Am Mosq Control Assoc 2001; 17:81-83. [PMID: 11345426] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Two experiments were performed on the predation of the planarian Dugesia tigrina (Girard) upon 2 mosquito prey species, Aedes albopictus and Culex quinquefasciatus. Bioassays were carried out in sectioned tires with 2 liters of water. In the 1st experiment, predation was evaluated using 4, 8, and 12 mature planarians against 40 2nd-stage larvae of each mosquito species alone. In the 2nd experiment, the same 3 predator densities were used with a pool composed of 20 2nd-stage larvae of each mosquito species. In the 1st experiment, final corrected mortality of Ae. albopictus reached 89.1, 98.8, and 99.6% and final corrected mortality of Cx. quinquefasciatus reached 29.4, 48.0, and 53.0%, respectively, with 4, 8, and 12 planarians. In the 2nd experiment and when subjected to the density of 4 planarians, Ae. albopictus was more susceptible to predation, with a selectivity index of 0.87, whereas this index was 0.13 for Cx. quinquefasciatus. Predation was more intensive during the 1st 4 days of the experiments, when most larvae were in the 2nd and 3rd stages. We observed that Cx. quinquefasciatus larvae were faster than Ae. albopictus in reacting to planarian contacts, resulting in more success in escaping from the predator attacks.
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Affiliation(s)
- A S Melo
- Departamento de Zoologia, IB, Universidade Estadual de Campinas, SP, Brazil
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de Souza SJ, Camargo AA, Briones MR, Costa FF, Nagai MA, Verjovski-Almeida S, Zago MA, Andrade LE, Carrer H, El-Dorry HF, Espreafico EM, Habr-Gama A, Giannella-Neto D, Goldman GH, Gruber A, Hackel C, Kimura ET, Maciel RM, Marie SK, Martins EA, Nobrega MP, Paco-Larson ML, Pardini MI, Pereira GG, Pesquero JB, Rodrigues V, Rogatto SR, da Silva ID, Sogayar MC, de Fátima Sonati M, Tajara EH, Valentini SR, Acencio M, Alberto FL, Amaral ME, Aneas I, Bengtson MH, Carraro DM, Carvalho AF, Carvalho LH, Cerutti JM, Corrêa ML, Costa MC, Curcio C, Gushiken T, Ho PL, Kimura E, Leite LC, Maia G, Majumder P, Marins M, Matsukuma A, Melo AS, Mestriner CA, Miracca EC, Miranda DC, Nascimento AN, Nóbrega FG, Ojopi EP, Pandolfi JR, Pessoa LG, Rahal P, Rainho CA, da Rós N, de Sá RG, Sales MM, da Silva NP, Silva TC, da Silva W, Simão DF, Sousa JF, Stecconi D, Tsukumo F, Valente V, Zalcbeg H, Brentani RR, Reis FL, Dias-Neto E, Simpson AJ. Identification of human chromosome 22 transcribed sequences with ORF expressed sequence tags. Proc Natl Acad Sci U S A 2000; 97:12690-3. [PMID: 11070084 PMCID: PMC18825 DOI: 10.1073/pnas.97.23.12690] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Transcribed sequences in the human genome can be identified with confidence only by alignment with sequences derived from cDNAs synthesized from naturally occurring mRNAs. We constructed a set of 250,000 cDNAs that represent partial expressed gene sequences and that are biased toward the central coding regions of the resulting transcripts. They are termed ORF expressed sequence tags (ORESTES). The 250,000 ORESTES were assembled into 81,429 contigs. Of these, 1, 181 (1.45%) were found to match sequences in chromosome 22 with at least one ORESTES contig for 162 (65.6%) of the 247 known genes, for 67 (44.6%) of the 150 related genes, and for 45 of the 148 (30.4%) EST-predicted genes on this chromosome. Using a set of stringent criteria to validate our sequences, we identified a further 219 previously unannotated transcribed sequences on chromosome 22. Of these, 171 were in fact also defined by EST or full length cDNA sequences available in GenBank but not utilized in the initial annotation of the first human chromosome sequence. Thus despite representing less than 15% of all expressed human sequences in the public databases at the time of the present analysis, ORESTES sequences defined 48 transcribed sequences on chromosome 22 not defined by other sequences. All of the transcribed sequences defined by ORESTES coincided with DNA regions predicted as encoding exons by genscan. (http://genes.mit.edu/GENSCAN.html).
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Affiliation(s)
- S J de Souza
- Ludwig Institute for Cancer Research, São Paulo 01509-010, SP, Brazil
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Abstract
Reported is a case with a rare association of divided left atrium, supramitral stenosing ring of the left atrium, connection of the left superior caval vein to the roof of the left atrium, unroofed coronary sinus with an interatrial communication at the mouth of the unroofed sinus and ventricular septal defect. The need for a complete echocardiographic examination in the presence of pulmonary venous obstruction is emphasized. Surgery was successful in spite of significant preoperative pulmonary hypertension.
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Affiliation(s)
- S Alvares
- Pediatric Cardiology Unit, Children's Hospital Maria Pia, Porto, Portugal
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Melo AS, de Almeida LP, Colombo AL, Briones MR. Evolutionary distances and identification of Candida species in clinical isolates by randomly amplified polymorphic DNA (RAPD). Mycopathologia 1999; 142:57-66. [PMID: 9926417 DOI: 10.1023/a:1006998325716] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Fast and reliable identification of different species of the genus Candida is important to define adequate therapeutic decisions, because the different species have highly variable susceptibilities to antifungal drugs; azoles and amphothericin B. Accurate statistical records on case history and epidemiological studies also depend on effective identification. To address this problem we established a RAPD method that enabled direct identification of five very common species of Candida. Initially, reference band patterns were established for C. albicans, C. tropicalis, C. parapsilosis, C. glabrata and C. krusei. One of the primers, M2, showed remarkably conserved intra-specific patterns of approximately 10 bands each, ranging in size from 2.0 to 0.1 kb. These patterns were significantly different and species-specific. Few bands were conserved between different species of Candida, which was assumed to be consistent with their phylogenetic relatedness. In addition, band patterns were constant and reproducible and DNA isolated from single colonies yielded sufficient DNA for identification. The reference band patterns were then used, in blind experiments, to identify species of Candida in 50 randomly chosen samples, including clinical isolates and ATCC strains. RAPD results were 100% consistent with results obtained by conventional diagnostic methods and were achieved in one day instead of several days taken by conventional methods. Because ideal identification methods should be consistent with phylogeny and taxonomy we tested whether RAPD could be used to calculate genetic distances. Comparison of RAPD phylogenetic trees with 18S rRNA trees showed significant differences in tree topologies which indicated that RAPD data could not accurately measure the relative distances between different species. Also, computer simulations of RAPD random patterns were used to test whether the observed degree of RAPD band pattern similarities could occur at random. These simulations suggested that the level of inter-specific band pattern similarities observed in our data could be obtained at random, while intraspecific pattern similarities could not. RAPD would be helpful to discriminate between isolates but not to quantitate the differences. We suggest that the inaccurate estimate of genetic distances from RAPD is a general limitation of the technique and not a specific problem of our identification method. Because of the repetitive character of the target sequences, genetic distances calculated from RAPD could be affected by paralogy, namely, recombination and duplication events not parallel with speciation events.
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Affiliation(s)
- A S Melo
- Departamento de Medicina (D.I.P.A.), Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), Brazil
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Antunes MJ, Melo AS. Transposition of the great arteries: correction with conversion from single to dual coronary artery system. Ann Thorac Surg 1993; 56:1166-8. [PMID: 8239819 DOI: 10.1016/0003-4975(95)90039-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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We describe the case of a newborn child with D-transposition of the great arteries who was found to have an uncommon single-origin coronary artery system. Surgical correction by arterial switch was performed but resulted in tension of the left coronary branch, which prevented discontinuation of cardiopulmonary bypass. The problem was eventually resolved by conversion into a dual coronary artery system through direct implantation of the left coronary branch into the aorta. The patient remains well, free from ischemia and with a patent left coronary artery, 2 years after operation.
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Affiliation(s)
- M J Antunes
- Division of Cardiothoracic Surgery, University Hospital, Coimbra, Portugal
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Antunes MJ, Castela E, Sanches MF, Melo AS. Preservation of the pulmonary annulus in total correction of tetralogy of Fallot. Decreasing transannular gradients in the early follow-up period. Eur J Cardiothorac Surg 1991; 5:528-32; discussion 533. [PMID: 1756046 DOI: 10.1016/1010-7940(91)90106-t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [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: 12/28/2022] Open
Abstract
The integrity of the pulmonary annulus was preserved in 21 of 22 children consecutively subjected to total correction of tetralogy of Fallot. There was one early death (4.8%). The 20 survivors were studied prospectively and constitute the basis of this report. Mean age was 59.3 +/- 35.3 months (range 6 months-12 years). Eight patients (40%) had previous Blalock-Taussig shunts and 3 (15%) had associated cardiac anomalies. Two-dimensional Doppler echocardiography had demonstrated right ventricle to main pulmonary artery peak systolic gradients of 75.4 +/- 12.7 mmHg (range 50-104 mmHg). Ventricular infundibulectomy was carried out in all patients but one, who had abnormal coronary anatomy. Extensive incision or resection of hypertrophied or abnormal muscle bands was performed. Pulmonary valve commissurotomy was performed in 14 patients (70%), 10 (50%) had autologous pericardium supravalvular enlargement of the pulmonary trunk and one (5%) had an infundibular bovine pericardial patch. Intraoperative, postrepair right/left ventricular pressure ratios were 0.67 +/- 0.18 (range 0.41-1.0). All ratios were accepted, because all patients were haemodynamically well and only two required inotropic (dopamine) support. There was no late mortality. During the early follow-up period (mean 13.0 +/- 5.4 months, range 7-25 months), all patients had two-dimensional Doppler echocardiography measured gradients at discharge (mean 44.2 +/- 22.6 mmHg, range 10-86 mmHg; p less than 0.001 vs. preoperative values), at 3 months (mean 31.1 +/- 14.5 mmHg, range 8-64 mmHg; p less than 0.011 vs. values at discharge) and at 6 months (mean 28.5 +/- 14.3 mmHg, range 12-57 mmHg; p = 0.009 vs. values at discharge). A similar favourable evolution of the diameters of the pulmonary annulus and of the right pulmonary artery was observed.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- M J Antunes
- Division of Cardio-thoracic Surgery, University Hospital, Coimbra, Portugal
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Barreto ML, Loureiro S, Melo AS, Anjos CF. The effect of Schistosoma mansoni infection on child morbidity in the State of Bahia, Brazil. II--Analysis at the individual level. Rev Inst Med Trop Sao Paulo 1985; 27:167-71. [PMID: 3938563 DOI: 10.1590/s0036-46651985000400001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The present investigation was carried out on a sample of 840 children (5 to 16 years old) from ten small towns of the State of Bahia in northeastern Brazil. The objetive was to study, by using a cross sectional methodology, the evolution of schistosomiasis morbidity (hepatic and splenic enlargement) in children, and the role of the intensity of S. mansoni infection in this process. The children were analised in three age groups (5 to 8, to 12 and 13 to 16 years old) and classified as uninfected, mildly infected, moderately infected and heavily infected according to the number of eggs in the stool. In children aged 5 to 8 years, increasing egg counts were not associated with increasing frequencies of hepatic or splenic enlargement. In the 9 to 12 years old group and association was observed with the prevalence of hepatic enlargement, but not with the prevalence of spleen enlargement. In the oldest group, 13 to 16 years old, an association was observed with the prevalence of enlargement of both organs. It was evident that in this population schistosomiasis morbidity develops in the early period of life as a gradual process starting with liver enlargement and followed by spleen enlargement some years later. It was found that the intensity of infection has a fundamental role in this process, although there is a latent period of some years before clinical splenomegaly appears in moderate-heavily infected children. The Authors suggest that the prevalence of splenomegaly in the 13 to 16 years old group is a good measure of the community level of schistosomiasis morbidity and could be used to measure the impact of control programs.
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