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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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Caldas HC, Gonçalves NDN, Costa DS, Dias C, Caires LP, Baptista MASF, Fernandes-Charpiot IMM, Abbud-Filho M. Different Patterns of Foxp3 Gene Expression in Pre-and Post-Transplantation Kidney Biopsies and the Effect of Use Mammalian Target of Rapamycin Inhibitors. Transplant Proc 2023; 55:1408-1410. [PMID: 37156660 DOI: 10.1016/j.transproceed.2023.03.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 03/31/2023] [Indexed: 05/10/2023]
Abstract
BACKGROUND Trafficking of regulatory T cells (Tregs) modulates the inflammatory response after kidney transplantation (KTx). There is scarce information on whether circulating and intragraft Tregs are similarly affected by immunosuppressive drugs and the type of deceased kidney donor. METHODS FOXP3 gene expression was measured in the pretransplant kidney biopsies (PIBx) from donors who met extended (ECD) and standard (SCD) criteria donors. In the third month after KTx, the patients were divided according to tacrolimus (Tac) or everolimus (Eve) and the type of kidney they had received. FOXP3 gene expression in the peripheral blood (PB) and kidney biopsies (Bx) was analyzed using real-time polymerase chain reaction. RESULTS FOXP3 gene expression in the PIBx was higher in ECD kidneys. FOXP3 gene expression in the PB and Bx was greater in Eve- than in Tac-treated patients. However, SCD recipients treated with Eve (SCD/Eve) had higher FOXP3 expression than ECD/Eve. CONCLUSION Pretransplant kidney biopsies from ECD kidneys had higher FOXP3 gene expression than SCD, and the use of Eve may affect the expression of the FOXP3 gene only in SCD kidneys.
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Affiliation(s)
- Heloisa Cristina Caldas
- Laboratory of Immunology and Experimental Transplantation (LITEX), Medical School of Sao Jose do Rio Preto-FAMERP, Sao Jose do Rio Preto, SP, Brazil
| | - Naiane do Nascimento Gonçalves
- Laboratory of Immunology and Experimental Transplantation (LITEX), Medical School of Sao Jose do Rio Preto-FAMERP, Sao Jose do Rio Preto, SP, Brazil
| | - Douglas Santos Costa
- Laboratory of Immunology and Experimental Transplantation (LITEX), Medical School of Sao Jose do Rio Preto-FAMERP, Sao Jose do Rio Preto, SP, Brazil
| | - Cinthia Dias
- Laboratory of Immunology and Experimental Transplantation (LITEX), Medical School of Sao Jose do Rio Preto-FAMERP, Sao Jose do Rio Preto, SP, Brazil
| | - Lennon Pereira Caires
- Laboratory of Immunology and Experimental Transplantation (LITEX), Medical School of Sao Jose do Rio Preto-FAMERP, Sao Jose do Rio Preto, SP, Brazil
| | - Maria Alice Sperto Ferreira Baptista
- Laboratory of Immunology and Experimental Transplantation (LITEX), Medical School of Sao Jose do Rio Preto-FAMERP, Sao Jose do Rio Preto, SP, Brazil; Kidney Transplant and Dialysis Unit, Hospital de Base-FUNFARME, Sao Jose do Rio Preto, SP, Brazil
| | - Ida Maria Maximina Fernandes-Charpiot
- Laboratory of Immunology and Experimental Transplantation (LITEX), Medical School of Sao Jose do Rio Preto-FAMERP, Sao Jose do Rio Preto, SP, Brazil; Kidney Transplant and Dialysis Unit, Hospital de Base-FUNFARME, Sao Jose do Rio Preto, SP, Brazil
| | - Mario Abbud-Filho
- Laboratory of Immunology and Experimental Transplantation (LITEX), Medical School of Sao Jose do Rio Preto-FAMERP, Sao Jose do Rio Preto, SP, Brazil; Kidney Transplant and Dialysis Unit, Hospital de Base-FUNFARME, Sao Jose do Rio Preto, SP, Brazil.
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Souza AR, Silva AAR, Lima GS, Azevedo CAV, Soares LAA, Silva FA, Capitulino JD, Arruda TFL, Chaves LHG, Costa DS. Morphophysiology and production of bell pepper grown under salt stress and salicylic acid foliar application. BRAZ J BIOL 2023; 83:e273017. [PMID: 37255174 DOI: 10.1590/1519-6984.273017] [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: 03/16/2023] [Accepted: 04/28/2023] [Indexed: 06/01/2023] Open
Abstract
Considering the relevance of bell pepper and the limitations imposed by the deleterious effects of salt stress, especially in semi-arid regions, it is extremely important to establish strategies that can facilitate the use of saline water in vegetable production. In this scenario, this study aimed to evaluate the effect of the frequency of foliar application of salicylic acid on the morphophysiology and production of the bell pepper cv. "All Big" irrigated with saline water. The study was conducted at a greenhouse in Campina Grande - PB. The treatments were distributed in a completely randomized design and set up in a 4 × 4 factorial arrangement with three replications, corresponding to four application frequencies of salicylic acid (F1- No application of salicylic acid, F2 - Weekly application, F3- fortnightly application, and F4- monthly application) and four levels of electrical conductivity of irrigation water - ECw (0.8, 1.6, 2.4 and 3.2 dS m-1). The fortnightly application of salicylic acid at a concentration of 1.0 mM mitigated the effects of salt stress on the morphophysiology and production components of bell pepper cv. All Big cultivated with ECw of up to 2.4 dS m-1, which reinforces the hypothesis that salicylic acid can act as a signaling molecule and reduce the effects of saline stress in bell pepper, enabling the use of brackish water in agricultural activity, mainly in semi-arid regions of northeastern Brazil, which have a shortage of fresh water.
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Affiliation(s)
- A R Souza
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campina Grande, PB, Brasil
| | - A A R Silva
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campina Grande, PB, Brasil
| | - G S Lima
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campina Grande, PB, Brasil
| | - C A V Azevedo
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campina Grande, PB, Brasil
| | - L A A Soares
- Universidade Federal de Campina Grande - UFCG, Centro de Ciências e Tecnologias Agroalimentar - CCTA, Pombal, PB, Brasil
| | - F A Silva
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campina Grande, PB, Brasil
| | - J D Capitulino
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campina Grande, PB, Brasil
| | - T F L Arruda
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campina Grande, PB, Brasil
| | - L H G Chaves
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campina Grande, PB, Brasil
| | - D S Costa
- Universidade Federal de Campina Grande - UFCG, Unidade Acadêmica de Engenharia Agrícola - UAEA, Campina Grande, PB, Brasil
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Oliveira TDO, Costa DS, Alvim-Soares A, de Paula JJ, Kestelman I, Silva AG, Malloy-Diniz LF, Miranda DM. Children's behavioral problems, screen time, and sleep problems' association with negative and positive parenting strategies during the COVID-19 outbreak in Brazil. Child Abuse Negl 2022; 130:105345. [PMID: 34625278 PMCID: PMC9221927 DOI: 10.1016/j.chiabu.2021.105345] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/20/2021] [Accepted: 09/22/2021] [Indexed: 05/21/2023]
Abstract
UNLABELLED Families' health, safety, and economic stability were jeopardized during the pandemic. Parental stress is a risk factor for hostile and less supportive parenting. Parenting styles are a set of attitudes, feelings and behaviors related to parenting that modulate the child's psychosocial functioning and might impact on the adaptability to a stressful time. OBJECTIVE To investigate the group differences among children raised by negative and positive parenting families during COVID-19 pandemic. METHODS We have done an online survey with 329 parents. Parents answer about parenting strategies and styles, children's behavior, Covid related questions, socio-economic information, sleep and gaming disorders. RESULTS Parents' frequent use of negative strategies were a risk factor to have a negative outcome related to mental health, games, sleep, and children behavior. DISCUSSION Parenting strategies are some targets pointed in this study for intervention. Parents' styles and strategies training to better manage children might be even more important to avoid negative consequences for children in stressful times.
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Affiliation(s)
- T D O Oliveira
- Programa de Pós-Graduação em Medicina Molecular, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - D S Costa
- Programa de Pós-Graduação em Medicina Molecular, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - A Alvim-Soares
- Departamento de Saúde Mental, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - J J de Paula
- Departamento de Pediatria, Faculdade de Medicina, Laboratório de Medicina Molecular, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - I Kestelman
- Associação Brasileira do Déficit de Atenção, ABDA, Brazil
| | - A G Silva
- Associação Brasileira de Psiquiatria, Brazil; FMUP - Faculdade de Medicina da Universidade do Porto, Brazil
| | - L F Malloy-Diniz
- Departamento de Saúde Mental, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - D M Miranda
- Departamento de Pediatria, Faculdade de Medicina, Laboratório de Medicina Molecular, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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de Oliveira JR, Colombo J, Gonçalves FM, de Carvalho LAL, Costa DS, Henrique T, Novais AA, Moscheta-Pinheiro MG, de Almeida Chuffa LG, Coutinho LL, Santana ÁE, de Campos Zuccari DAP. Liquid Biopsy Can Detect Brca2 Gene Variants In Female Dogs With Mammary Neoplasia. Vet Comp Oncol 2021; 20:164-171. [PMID: 34328705 DOI: 10.1111/vco.12758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 07/09/2021] [Accepted: 07/28/2021] [Indexed: 11/30/2022]
Abstract
Mammary tumors (MT) is one of the most prevalent malignancies in female dogs and women. Currently, molecular analyzes have shown that each tumor type presents its own genetic signature. In this context, liquid biopsy allows a comprehensive genetic characterization of the tumor, enabling early diagnosis and personalized treatment of patients. In women, deleterious mutations inherited in BRCA2 gene are associated with an increased risk of breast cancer, resistance to therapies, and worse prognosis. In female dogs, there are many divergent data on the involvement of BRCA2 gene with mammary carcinogenesis and what its pathogenic potential is. Therefore, the objective was to identify BRCA2 gene variants in 20 plasma DNA samples, from 10 newly diagnosed dogs with mammary cancer (RD), five control (CTR), and five mastectomized (MAST) patients. Eleven single nucleotide polymorphisms (SNPs) were detected, most of them in the exon 11, and two indels (deletion / insertion) in the BRCA2 gene. However, there was no statistically significant difference in the SNPs/indels detected between the groups. In addition, only one SNP (p.T1425P) and one deletion (p.L2307del) were considered deleterious using in silico computational models. Interestingly, most common variants were present in the plasma of all groups, except for the Ile2614Thr, Ile2614Val, Thr1425Pro, and p.L2307del variants. Thus, we observed that SNPs are common in the BRCA2 gene of female dogs with mammary tumors, with a similar condition identified in women with breast cancer. Liquid biopsy approach in dogs with MT is useful for genetic and therapeutic proposals. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Jéssica Rodrigues de Oliveira
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, Univ. Estadual Paulista, Jaboticabal, São Paulo, Brazil
| | - Jucimara Colombo
- Department of Molecular Biology, Cancer Molecular Research Laboratory (LIMC), FAMERP, São José do Rio Preto, Brazil
| | - Francine Moraes Gonçalves
- Department of Molecular Biology, Cancer Molecular Research Laboratory (LIMC), FAMERP, São José do Rio Preto, Brazil
| | - Lucas Amoroso Lopes de Carvalho
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, Univ. Estadual Paulista, Jaboticabal, São Paulo, Brazil
| | - Douglas Santos Costa
- Department of Molecular Biology, Cancer Molecular Research Laboratory (LIMC), FAMERP, São José do Rio Preto, Brazil
| | - Tiago Henrique
- Department of Molecular Biology, Molecular Markers and Bioinformatics Laboratory, FAMERP, São José do Rio Preto, SP, Brazil
| | - Adriana Alonso Novais
- Department of Molecular Biology, Cancer Molecular Research Laboratory (LIMC), FAMERP, São José do Rio Preto, Brazil
| | | | - Luiz Gustavo de Almeida Chuffa
- Department of Anatomy-IBB/UNESP, Institute of Biosciences of Botucatu, Univ. Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Luiz Lehmann Coutinho
- Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo, Piracicaba, São Paulo, Brazil
| | - Áureo Evangelista Santana
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, Univ. Estadual Paulista, Jaboticabal, São Paulo, Brazil
| | - Debora Aparecida Pires de Campos Zuccari
- Department of Molecular Biology, Cancer Molecular Research Laboratory (LIMC), FAMERP, São José do Rio Preto, Brazil.,Department of Molecular Biology - FAMERP and Collaborator Professor in Program of Post-Graduate in Genetics - UNESP/IBILCE, São José do Rio Preto, São Paulo, Brazil
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Colombo RC, Costa DS, Carvalho DU, Cruz MA, Roberto SR. Methods of aril removal and lightness conditions on seeds physiological quality of sour passion fruits. BRAZ J BIOL 2018; 79:404-409. [PMID: 30304250 DOI: 10.1590/1519-6984.178623] [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: 04/17/2017] [Accepted: 01/09/2018] [Indexed: 11/22/2022] Open
Abstract
Passion fruits species presents a larger economic importance for in natura consumption and industry. The main way to propagate these species is by seeds; however, the aril presence and environmental conditions may inhibit the seeds germination. In this sense, the objective of this study was to evaluate the effect of aril removal methods and light conditions on P. edulis var. flavicarpa seeds quality and germination. There were used five methods to remove the seeds aril: (1) friction on steel mesh sieve for 5 minutes; (2) friction with coarse sand on steel mesh sieve for 5 minutes; (3) immersion in lime solution at 10% (w/v), for 30 minutes; (4) fermentation in sugar solution at 10% (w/v), during 48 hours; and (5) natural pulp fermentation, during five days. The seeds were submitted to germination test at darkness and lightness, as well as, to length seedlings and emergence test. Regardless the aril removal method, the germination percentage was lower at lightness than darkness highlighting the natural pulp fermentation treatment, which presented 86% of seeds germinated. On the other hand, the aril removal methods did not affect the seedlings emergence, with emergence percentages ranged from 88 to 94%.
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Affiliation(s)
- R C Colombo
- Programa de Pós-graduação em Agronomia, Departamento de Agronomia, Universidade Estadual de Londrina - UEL, Rodovia Celso Garcia Cid, PR 445, Km 380, CP 6001, CEP 86051-990, Londrina, PR, Brasil
| | - D S Costa
- Programa de Pós-graduação em Agronomia, Departamento de Agronomia, Universidade Estadual de Londrina - UEL, Rodovia Celso Garcia Cid, PR 445, Km 380, CP 6001, CEP 86051-990, Londrina, PR, Brasil
| | - D U Carvalho
- Programa de Pós-graduação em Agronomia, Departamento de Agronomia, Universidade Estadual de Londrina - UEL, Rodovia Celso Garcia Cid, PR 445, Km 380, CP 6001, CEP 86051-990, Londrina, PR, Brasil
| | - M A Cruz
- Programa de Pós-graduação em Agronomia, Departamento de Agronomia, Universidade Estadual de Londrina - UEL, Rodovia Celso Garcia Cid, PR 445, Km 380, CP 6001, CEP 86051-990, Londrina, PR, Brasil
| | - S R Roberto
- Programa de Pós-graduação em Agronomia, Departamento de Agronomia, Universidade Estadual de Londrina - UEL, Rodovia Celso Garcia Cid, PR 445, Km 380, CP 6001, CEP 86051-990, Londrina, PR, Brasil
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Queiroz RW, Silva VL, Rocha DR, Costa DS, Turco SHN, Silva MTB, Santos AA, Oliveira MBL, Pereira ASR, Palheta-Junior RC. Changes in cardiovascular performance, biochemistry, gastric motility and muscle temperature induced by acute exercise on a treadmill in healthy military dogs. J Anim Physiol Anim Nutr (Berl) 2016; 102:122-130. [PMID: 28032379 DOI: 10.1111/jpn.12667] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 03/09/2016] [Accepted: 11/25/2016] [Indexed: 01/03/2023]
Abstract
Changes in physiological parameters that are induced by acute exercise on a treadmill in healthy military dogs have not been thoroughly investigated, especially with regard to age. This study investigated the effects of acute exercise on a treadmill on cardiovascular function, biochemical parameters and gastric antral motility in military dogs. Thermography was used to assess variations in superficial hindlimb muscle temperature. Nine healthy dogs were distributed into three groups according to their age (Group I: 25 ± 7 months; Group II: 51 ± 12 months; Group III: 95 ± 10 months) and sequentially subjected to running exercise on a treadmill for 12 min (3.2 km/h at 0° incline for 4 min, 6.4 km/h at 0° incline for 4 min and 6.4 km/h at 10° incline for 4 min). Heart rate, systolic and diastolic arterial pressure (DAP), gastric motility, haematocrit and biochemical analyses were performed at rest and after each session of treadmill exercise. Infrared thermographic images of muscles in the pelvic member were taken. Exercise decreased DAP in Group I, increased systolic arterial pressure in Groups II and III and increased mean arterial pressure in Group III (all p < 0.05). After the exercise protocol, plasma creatine kinase and aspartate aminotransferase levels increased only in Group I (p < 0.05). Exercise increased heart rate and decreased the gastric motility of a solid meal at 180 min in all groups (all p < 0.05). Exercise also elevated temperature in the femoral biceps muscles in Group I compared with the older dogs. The results indicate that acute exercise decreased gastric motility in dogs, regardless of age, and caused more pronounced cardiovascular changes in older dogs than in younger dogs. Acute exercise also altered biochemical parameters and superficial hindlimb muscle temperature in younger military dogs.
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Affiliation(s)
- R W Queiroz
- Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil.,Hospital Veterinário, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
| | - V L Silva
- Colegiado de Medicina Veterinária, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
| | - D R Rocha
- Colegiado de Zootecnia, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
| | - D S Costa
- Colegiado de Engenharia Agrícola e Ambiental, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
| | - S H N Turco
- Colegiado de Engenharia Agrícola e Ambiental, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
| | - M T B Silva
- Departamento de Educação Física, Universidade Federal do Piauí, Teresina, Piauí, Brazil
| | - A A Santos
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - M B L Oliveira
- Hospital Veterinário, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
| | - A S R Pereira
- Canil da Polícia Militar, Petrolina, Pernambuco, Brazil
| | - R C Palheta-Junior
- Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil.,Colegiado de Medicina Veterinária, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
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Neri HL, Palhao MP, Costa DS, Viana J, Fernandes C. Endogenous Progesterone Concentrations Affect Progesterone Release from Intravaginal Devices Used for Oestrous Synchronization in Cattle. Reprod Domest Anim 2015; 50:692-5. [PMID: 26059020 DOI: 10.1111/rda.12550] [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: 02/12/2015] [Accepted: 05/09/2015] [Indexed: 11/29/2022]
Abstract
Intravaginal progesterone-releasing devices are largely used both as contraceptives in humans and as a component of oestrous synchronization protocols in cattle. To reduce costs in large-scale timed artificial insemination, the reuse of these releasing devices is common. Passive hormone diffusion, however, depends on the concentration gradient, which could affect the amount of residual progesterone present in these devices after a first use. To evaluate the effect of the presence of a corpus luteum in the release of progesterone from intravaginal devices, three synchronization protocols were designed to simulate the effects of inserting the device in the early dioestrus, late dioestrus or anoestrus. Holstein-Zebu cross-bred heifers were randomly allocated into one of these three treatments, and a series of blood samples was taken to evaluate the plasma progesterone concentrations. After 8 days, the intravaginal devices were removed and underwent a previously validated alcoholic extraction technique to measure the residual progesterone. Non-used devices were used as controls. As expected, the simultaneous presence of the intravaginal device and a corpus luteum resulted in increased plasma progesterone concentrations. Conversely, the amount of residual progesterone in the devices after use was inversely proportional to the plasma progesterone concentration. These results demonstrate that the release rate of progesterone from intravaginal devices is affected by the endogenous concentration of this hormone; consequently, the strategy for reuse should account for the category and expected luteal cyclic activity of the animals undergoing synchronization protocols.
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Affiliation(s)
- H L Neri
- University of Alfenas, Alfenas, MG, Brazil.,Hertape-Calier, Juatuba, MG, Brazil
| | - M P Palhao
- University of Alfenas, Alfenas, MG, Brazil
| | - D S Costa
- Federal University of Mato Grosso do Sul, MS, Brazil
| | - Jhm Viana
- University of Alfenas, Alfenas, MG, Brazil.,Embrapa, Juiz de Fora, MG, Brazil
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Thäle V, Pacholke J, Costa DS, Tchirikov M. 15 Jahre Erfahrung im Einsatz von Methylprednisolon (Urbason®) zur Schwangerschaftsprolongation bei HELLP-Syndrom – eine retrospektive Fall-Kontroll-Studie. Geburtshilfe Frauenheilkd 2015. [DOI: 10.1055/s-0035-1551592] [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: 10/23/2022] Open
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Andreussi PAT, Costa DS, Faria FJC, Fernandes CAC, Guimarães JD. Efficiency of the spermatogenesis in zebu bulls (Bos taurus indicus). Anat Histol Embryol 2013; 43:133-40. [PMID: 23617732 DOI: 10.1111/ahe.12056] [Citation(s) in RCA: 3] [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: 11/27/2012] [Accepted: 03/03/2013] [Indexed: 11/29/2022]
Abstract
The objective of the research was to evaluate the efficiency of the spermatogenesis through the morphology of the testicular parenchyma in bulls of different zebu breeds. We used testicular fragments from bull of the breeds Nelore (n = 10), Polled Nelore (n = 6), Gyr (n = 5), Guzerat (n = 5) and Tabapuã (n = 5). The tissue was perfused with Karnovsky solution, included in glycol methacrylate and stained with toluidine blue-sodium borate 1%. Animals of the Nelore breed presented higher population of primary spermatocyte in pre-leptotene/leptotene (38.30) and in pachytene (38.14) and round spermatids (113.30), higher yield of spermatogonia mitosis (21.2) and higher daily spermatic production per gram of testicular parenchyma (32.8 × 10(6) ) than those from breeds Gyr, Guzerat and Tabapuã and higher general yield of spermatogenesis (62.4) than breeds Gyr and Tabapuã. There was no significant difference in any of the evaluated parameters between breeds Nelore and Polled Nelore. The rate of Sertoli cells did not vary between the studied breeds. Apparently, the genetic selection applied to the breeds has been improving the yield in the spermatogenic process by decreasing cellular loss, although it did not increase the support capacity of the Sertoli cells.
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Affiliation(s)
- P A T Andreussi
- Faculty of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Av. Filinto Muller 2443 Vila Ipiranga, Campo Grande, MS, 79070-900, Brazil
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Rocha e Silva LF, Montoia A, Amorim RCN, Melo MR, Henrique MC, Nunomura SM, Costa MRF, Andrade Neto VF, Costa DS, Dantas G, Lavrado J, Moreira R, Paulo A, Pinto AC, Tadei WP, Zacardi RS, Eberlin MN, Pohlit AM. Comparative in vitro and in vivo antimalarial activity of the indole alkaloids ellipticine, olivacine, cryptolepine and a synthetic cryptolepine analog. Phytomedicine 2012; 20:71-76. [PMID: 23092722 DOI: 10.1016/j.phymed.2012.09.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Revised: 07/17/2012] [Accepted: 09/06/2012] [Indexed: 06/01/2023]
Abstract
Indole alkaloids ellipticine (1), cryptolepine triflate (2a), rationally designed 11-(4-piperidinamino)cryptolepine hydrogen dichloride (2b) and olivacine (3) (an isomer of 1) were evaluated in vitro against Plasmodium falciparum and in vivo in Plasmodium berghei-infected mice. 1-3 inhibited P. falciparum (IC₅₀≤1.4 μM, order of activity: 2b>1>2a>3). In vitro toxicity to murine macrophages was evaluated and revealed selectivity indices (SI) of 10-12 for 2a and SI>2.8×10² for 1, 2b and 3. 1 administered orally at 50mg/kg/day was highly active against P. berghei (in vivo inhibition compared to untreated control (IVI)=100%, mean survival time (MST)>40 days, comparable activity to chloroquine control). 1 administered orally and subcutaneously was active at 10 mg/kg/day (IVI=70-77%; MST=27-29 days). 3 exhibited high oral activity at ≥50 mg/kg/day (IVI=90-97%, MST=23-27 days). Cryptolepine (2a) administered orally and subcutaneously exhibited moderate activity at 50mg/kg/day (IVI=43-63%, MST=24-25 days). At 50 mg/kg/day, 2b administered subcutaneously was lethal to infected mice (MST=3 days) and moderately active when administered orally (IVI=45-55%, MST=25 days). 1 and 3 are promising compounds for development of antimalarials.
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Affiliation(s)
- L F Rocha e Silva
- National Institute for Amazonian Research, Av. André Araújo 2936, Aleixo, 69060-001 Manaus, Amazonas, Brazil
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Costa DS, Paula TAR, Matta SLP. The intertubular compartment morphometry in capybaras (Hydrochoerus hydrochaeris) testis. Anim Reprod Sci 2006; 91:173-9. [PMID: 16310104 DOI: 10.1016/j.anireprosci.2005.03.013] [Citation(s) in RCA: 18] [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] [Received: 01/28/2005] [Accepted: 03/24/2005] [Indexed: 11/30/2022]
Abstract
The aim of the present study was to characterize the intertubule element volume density, individual and total Leydig cells volume, Leydig cell number per testis and per gram of testis, and leydigosomatic index in adult capybaras. Eight capybaras from a commercial abattoir were utilized. The intertubular compartment volume density and the Leydig cells were 45.2 and 31.13%, respectively. The individual and total Leydig cell volumes were 8.51 and 2169.41 x 10(-12) mL, respectively. The Leydig cell number per testis was 3.8 billion and the Leydig cell number per gram of testis was 126 million. The leydigosomatic index was 0.037%. In conclusion, this study shows that capybaras have one of the greatest individual and total Leydig cell volume and Leydig cell volume density, and that the Leydig cell number per gram of testis is at least double the mean for mammals previously investigated in its order.
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Affiliation(s)
- D S Costa
- State University of North Fluminense, LSA/CCTA, Av. Alberto Lamego, 2000, Campos dos Goytacazes, RJ 28013-600, Brazil.
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