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Bighetti GP, Souza RC, Carvalho HRA, Silva CC, Torres JPM. Feather's Composition of South Polar Skua (Stercorarius maccormicki) Using WDXRF. Biol Trace Elem Res 2024; 202:2272-2278. [PMID: 37542592 DOI: 10.1007/s12011-023-03799-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 07/31/2023] [Indexed: 08/07/2023]
Abstract
This study investigated the feathers' composition of South polar skua (Stercorarius maccormicki) using WDXRF, evaluating the concentration of essential and non-essential elements in the feathers, and dividing it into rachis and barb parts. We collected South polar skuas feathers from Hennequin Point, King George Island, South Shetland, Antarctic Peninsula in January of 2013. Our results show that 18 elements were observed in the composition of the feathers, with a different concentration between the rachis and barbs, qualitatively and quantitatively. Only 3 elements observed were classified as non-essentials but still mostly elements do not have a function described in the literature to the feathers. According to our knowledge, this is the first study that uses this technique to evaluate the concentration of different elements in the feathers. The findings of this study highlight the use of alternative techniques to biomonitoring elements in the ecosystem and bring baseline information for future studies.
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Affiliation(s)
- G P Bighetti
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - R C Souza
- Grupo Crowfoot de Métodos de Raios-X, Universidade Do Estado Do Amazonas, Manaus, AM, Brazil
| | - H R A Carvalho
- Grupo Crowfoot de Métodos de Raios-X, Universidade Do Estado Do Amazonas, Manaus, AM, Brazil
| | - C C Silva
- Grupo Crowfoot de Métodos de Raios-X, Universidade Do Estado Do Amazonas, Manaus, AM, Brazil
| | - J P M Torres
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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2
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Corrêa BDC, Santos EGR, Belgamo A, Pinto GHL, Xavier SS, Silva CC, Dias ÁRN, Paranhos ACM, Cabral ADS, Callegari B, Costa e Silva ADA, Quaresma JAS, Falcão LFM, Souza GS. Smartphone-based evaluation of static balance and mobility in long-lasting COVID-19 patients. Front Neurol 2023; 14:1277408. [PMID: 38148981 PMCID: PMC10750373 DOI: 10.3389/fneur.2023.1277408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 11/20/2023] [Indexed: 12/28/2023] Open
Abstract
Background SARS-CoV-2 infection can lead to a variety of persistent sequelae, collectively known as long COVID-19. Deficits in postural balance have been reported in patients several months after COVID-19 infection. The purpose of this study was to evaluate the static balance and balance of individuals with long COVID-19 using inertial sensors in smartphones. Methods A total of 73 participants were included in this study, of which 41 had long COVID-19 and 32 served as controls. All participants in the long COVID-19 group reported physical complaints for at least 7 months after SARS-CoV-2 infection. Participants were evaluated using a built-in inertial sensor of a smartphone attached to the low back, which recorded inertial signals during a static balance and mobility task (timed up and go test). The parameters of static balance and mobility obtained from both groups were compared. Results The groups were matched for age and BMI. Of the 41 participants in the long COVID-19 group, 22 reported balance impairment and 33 had impaired balance in the Sharpened Romberg test. Static balance assessment revealed that the long COVID-19 group had greater postural instability with both eyes open and closed than the control group. In the TUG test, the long COVID-19 group showed greater acceleration during the sit-to-stand transition compared to the control group. Conclusion The smartphone was feasible to identify losses in the balance motor control and mobility of patients with long-lasting symptomatic COVID-19 even after several months or years. Attention to the balance impairment experienced by these patients could help prevent falls and improve their quality of life, and the use of the smartphone can expand this monitoring for a broader population.
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Affiliation(s)
| | | | | | | | - Stanley Soares Xavier
- Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Belém, Brazil
| | - Camilla Costa Silva
- Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Belém, Brazil
| | | | - Alna Carolina Mendes Paranhos
- Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Belém, Brazil
- Núcleo de Medicina Tropical, Universidade Federal do Pará, Belém, Brazil
| | | | - Bianca Callegari
- Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
| | | | - Juarez Antônio Simões Quaresma
- Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Belém, Brazil
- School of Medicine, São Paulo University, São Paulo, São Paulo, Brazil
| | | | - Givago Silva Souza
- Núcleo de Medicina Tropical, Universidade Federal do Pará, Belém, Brazil
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
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Neves PFMD, Quaresma JAS, Queiroz MAF, Silva CC, Maia EV, Oliveira JSDS, Neves CMAD, Mendonça SDS, Falcão ASC, Melo GS, Santos IBF, Sousa JRD, Santos EJMD, Vasconcelos PFDC, Vallinoto ACR, Falcão LFM. Imbalance of Peripheral Temperature, Sympathovagal, and Cytokine Profile in Long COVID. Biology (Basel) 2023; 12:biology12050749. [PMID: 37237560 DOI: 10.3390/biology12050749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 05/28/2023]
Abstract
A persistent state of inflammation has been reported during the COVID-19 pandemic. This study aimed to assess short-term heart rate variability (HRV), peripheral body temperature, and serum cytokine levels in patients with long COVID. We evaluated 202 patients with long COVID symptoms categorized them according to the duration of their COVID symptoms (≤120 days, n = 81; >120 days, n = 121), in addition to 95 healthy individuals selected as controls. All HRV variables differed significantly between the control group and patients with long COVID in the ≤120 days group (p < 0.05), and participants in the long COVID ≤120 days group had higher temperatures than those in the long COVID >120 days group in all regions analysed (p < 0.05). Cytokine analysis showed higher levels of interleukin 17 (IL-17) and interleukin 2 (IL-2), and lower levels of interleukin 4 (IL-4) (p < 0.05). Our results suggest a reduction in parasympathetic activation during long COVID and an increase in body temperature due to possible endothelial damage caused by the maintenance of elevated levels of inflammatory mediators. Furthermore, high serum levels of IL-17 and IL-2 and low levels of IL-4 appear to constitute a long-term profile of COVID-19 cytokines, and these markers are potential targets for long COVID-treatment and prevention strategies.
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Affiliation(s)
| | - Juarez Antônio Simões Quaresma
- Center for Biological Health Sciences, State University of Pará, Belém 66087-670, Brazil
- Tropical Medicine Center, Federal University of Pará, Belém 66055-240, Brazil
- School of Medicine, São Paulo University, São Paulo 01246-903, Brazil
| | - Maria Alice Freitas Queiroz
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, Brazil
| | - Camilla Costa Silva
- Center for Biological Health Sciences, State University of Pará, Belém 66087-670, Brazil
| | - Enzo Varela Maia
- Center for Biological Health Sciences, State University of Pará, Belém 66087-670, Brazil
| | | | | | | | | | - Giovana Salomão Melo
- Institute of Health Sciences, Federal University of Pará, Belém 66075-110, Brazil
| | | | - Jorge Rodrigues de Sousa
- Center for Biological Health Sciences, State University of Pará, Belém 66087-670, Brazil
- Institute of Health Sciences, Federal University of Pará, Belém 66075-110, Brazil
- Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua 67030-000, Brazil
| | - Eduardo José Melo Dos Santos
- Laboratory of Genetic of Complex Discasse, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 66075-110, Brazil
| | - Pedro Fernando da Costa Vasconcelos
- Center for Biological Health Sciences, State University of Pará, Belém 66087-670, Brazil
- Departamento de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil
| | - Antonio Carlos Rosário Vallinoto
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 66075-110, Brazil
| | - Luiz Fábio Magno Falcão
- Center for Biological Health Sciences, State University of Pará, Belém 66087-670, Brazil
- School of Medicine, São Paulo University, São Paulo 01246-903, Brazil
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Rodrigues AN, Dias ARN, Paranhos ACM, Silva CC, Bastos TDR, de Brito BB, da Silva NM, de Sousa EDJS, Quaresma JAS, Falcão LFM. Headache in long COVID as disabling condition: A clinical approach. Front Neurol 2023; 14:1149294. [PMID: 37034080 PMCID: PMC10076861 DOI: 10.3389/fneur.2023.1149294] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
Background and purpose Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection can exacerbate previous headache disorders or change the type of pain experienced from headaches. This study aimed to investigate the clinical features of Long COVID headaches. Method This was a cross-sectional, descriptive, and analytical observational study that included 102 patients (with previous headache, n = 50; without previous headache, n = 52) with long COVID and headache complaints. The Migraine Disability Assessment Test and Visual Analog Pain Scale were used to collect participants' headache data according to a standardized protocol. Results The patients in this study who reported experiencing headaches before COVID-19 had longer headache duration in the long COVID phase than that in the pre-long COVID phase (p = 0.031), exhibited partial improvement in headache symptoms with analgesics (p = 0.045), and had a duration of long COVID of <1 year (p = 0.030). Patients with moderate or severe disability and those classified as having severe headaches in the long COVID phase were highly likely to develop chronic headaches. Hospital admission [odds ratio (OR) = 3.0082; 95% confidence interval (95% CI): 1.10-8.26], back pain (OR = 4.0017; 95% CI: 1.13-14.17), insomnia (OR = 3.1339; 95% CI: 1.39-7.06), and paraesthesia (OR = 2.7600; 95% CI: 1.20-6.33) were associated with headache in these patients. Conclusion Headache is a disabling condition in patients with long COVID-19, exacerbating the conditions of those with headaches prior to contracting COVID-19.
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Affiliation(s)
| | | | - Alna Carolina Mendes Paranhos
- Center for Biological Health Sciences, State University of Pará, Belém, Pará, Brazil
- Tropical Medicine Center, Federal University of Pará, Belém, Pará, Brazil
| | - Camilla Costa Silva
- Center for Biological Health Sciences, State University of Pará, Belém, Pará, Brazil
| | | | | | | | | | - Juarez Antônio Simões Quaresma
- Center for Biological Health Sciences, State University of Pará, Belém, Pará, Brazil
- Tropical Medicine Center, Federal University of Pará, Belém, Pará, Brazil
- USP Medical School, São Paulo University, São Paulo, São Paulo, Brazil
| | - Luiz Fábio Magno Falcão
- Center for Biological Health Sciences, State University of Pará, Belém, Pará, Brazil
- USP Medical School, São Paulo University, São Paulo, São Paulo, Brazil
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Lucena-Neto FD, Falcão LFM, Moraes ECDS, David JPF, Vieira-Junior ADS, Silva CC, de Sousa JR, Duarte MIS, Vasconcelos PFDC, Quaresma JAS. Dengue fever ophthalmic manifestations: A review and update. Rev Med Virol 2023; 33:e2422. [PMID: 36658757 DOI: 10.1002/rmv.2422] [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: 09/12/2022] [Revised: 12/23/2022] [Accepted: 01/08/2023] [Indexed: 01/21/2023]
Abstract
Dengue fever, the most common arbovirus disease, affects an estimated 390 million people annually. Dengue virus (DENV) is an RNA virus of the Flaviviridae family with four different serotypes. Dengue haemorrhagic fever is the deadliest form of dengue infection and is characterised by thrombocytopaenia, hypotension, and the possibility of multi-system organ failure. The mechanism hypothesised for DENV viral replication is intrinsic antibody-dependent enhancement, which refers to Fcγ receptor-mediated viral amplification. This hypothesis suggests that the internalisation of DENV through the Fcγ receptor inhibits antiviral genes by suppressing type-1 interferon-mediated antiviral responses. DENV NS1 antibodies can promote the release of various inflammatory mediators in the nuclear transcription factor pathway (NF-κB-dependent), including monocyte chemoattractant protein (MCP)-1, interleukin (IL)-6, and IL-8. As a result, MCP-1 increases ICAM-1 expression and facilitates leukocyte transmigration. In addition, anti-DENV NS1 antibodies induce endothelial cell apoptosis via a nitric oxide-regulated pathway. A chain reaction involving pre-existing DENV heterotypic antibodies and innate immune cells causes dysfunction in complement system activity and contributes to the action of autoantibodies and anti-endothelial cells, resulting in endothelial cell dysfunction, blood-retinal barrier breakdown, haemorrhage, and plasma leakage. A spectrum of ocular diseases associated with DENV infection, ranging from haemorrhagic to inflammatory manifestations, has been reported in the literature. Although rare, ophthalmic manifestations can occur in both the anterior and posterior segments and are usually associated with thrombocytopenia. The most common ocular complication is haemorrhage. However, ophthalmic complications, such as anterior uveitis and vasculitis, suggest an immune-mediated pathogenesis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Juarez Antônio Simões Quaresma
- State University of Pará, Belém, Pará, Brazil.,Federal University of Pará, Belém, Pará, Brazil.,School of Medicine, São Paulo University, São Paulo, São Paulo, Brazil.,Virology Section, Evandro Chagas Institute, Ananindeua, Pará, Brazil
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6
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Marques KC, Silva CC, Trindade SDS, Santos MCDS, Rocha RSB, Vasconcelos PFDC, Quaresma JAS, Falcão LFM. Reduction of Cardiac Autonomic Modulation and Increased Sympathetic Activity by Heart Rate Variability in Patients With Long COVID. Front Cardiovasc Med 2022; 9:862001. [PMID: 35571200 PMCID: PMC9098798 DOI: 10.3389/fcvm.2022.862001] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 04/04/2022] [Indexed: 01/08/2023] Open
Abstract
Although several clinical manifestations of persistent long coronavirus disease (COVID-19) have been documented, their effects on the cardiovascular and autonomic nervous system over the long term remain unclear. Thus, we examined the presence of alterations in cardiac autonomic functioning in individuals with long-term manifestations. The study was conducted from October 2020 to May 2021, and an autonomic assessment was performed to collect heart rate data for the heart rate variability (HRV) analysis. The study participants were divided into the long COVID clinical group, the intragroup, which included patients who were hospitalized, and those who were not hospitalized and were symptomatic for different periods (≤3, >3, ≤6, and >6 months), with and without dyspnoea. The control group, the intergroup, comprised of COVID-free individuals. Our results demonstrated that the long COVID clinical group showed reduced HRV compared with the COVID-19-uninfected control group. Patients aged 23–59 years developed COVID symptoms within 30 days after infection, whose diagnosis was confirmed by serologic or reverse-transcription polymerase chain reaction (swab) tests, were included in the study. A total of 155 patients with long COVID [95 women (61.29%), mean age 43.88 ± 10.88 years and 60 men (38.71%), mean age 43.93 ± 10.11 years] and 94 controls [61 women (64.89%), mean age 40.83 ± 6.31 and 33 men (35.11%), mean age 40.69 ± 6.35 years] were included. The intragroup and intergroup comparisons revealed a reduction in global HRV, increased sympathetic modulation influence, and a decrease in parasympathetic modulation in long COVID. The intragroup showed normal sympathovagal balance, while the intergroup showed reduced sympathovagal balance. Our findings indicate that long COVID leads to sympathetic excitation influence and parasympathetic reduction. The excitation can increase the heart rate and blood pressure and predispose to cardiovascular complications. Short-term HRV analysis showed good reproducibility to verify the cardiac autonomic involvement.
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Affiliation(s)
- Karina Carvalho Marques
- Postgraduate Program in Parasitic Biology in the Amazon, Laboratory of Infectious and Cardiopulmonary Diseases, Long COVID Program, Centre for Biological and Health Sciences, Pará State University, Belém, Brazil
| | - Camilla Costa Silva
- Postgraduate Program in Parasitic Biology in the Amazon, Laboratory of Infectious and Cardiopulmonary Diseases, Long COVID Program, Centre for Biological and Health Sciences, Pará State University, Belém, Brazil
| | - Steffany da Silva Trindade
- Laboratory of Infectious and Cardiopulmonary Diseases, Long COVID Program, Centre for Biological and Health Sciences, Pará State University, Belém, Brazil
| | | | | | - Pedro Fernando da Costa Vasconcelos
- Postgraduate Program in Parasitic Biology in the Amazon, Laboratory of Infectious and Cardiopulmonary Diseases, Long COVID Program, Centre for Biological and Health Sciences, Pará State University, Belém, Brazil
| | - Juarez Antônio Simões Quaresma
- Postgraduate Program in Parasitic Biology in the Amazon, Laboratory of Infectious and Cardiopulmonary Diseases, Long COVID Program, Centre for Biological and Health Sciences, Pará State University, Belém, Brazil
| | - Luiz Fábio Magno Falcão
- Postgraduate Program in Parasitic Biology in the Amazon, Laboratory of Infectious and Cardiopulmonary Diseases, Long COVID Program, Centre for Biological and Health Sciences, Pará State University, Belém, Brazil
- *Correspondence: Luiz Fábio Magno Falcão
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7
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Silva CC, Bichara CNC, Carneiro FRO, Palacios VRDCM, Berg AVSVD, Quaresma JAS, Magno Falcão LF. Muscle dysfunction in the long coronavirus disease 2019 syndrome: Pathogenesis and clinical approach. Rev Med Virol 2022; 32:e2355. [PMID: 35416359 PMCID: PMC9111061 DOI: 10.1002/rmv.2355] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/20/2022] [Accepted: 04/01/2022] [Indexed: 01/08/2023]
Abstract
In long coronavirus disease 2019 (long COVID‐19), involvement of the musculoskeletal system is characterised by the persistence or appearance of symptoms such as fatigue, muscle weakness, myalgia, and decline in physical and functional performance, even at 4 weeks after the onset of acute symptoms of COVID‐19. Muscle injury biomarkers are altered during the acute phase of the disease. The cellular damage and hyperinflammatory state induced by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) infection may contribute to the persistence of symptoms, hypoxaemia, mitochondrial damage, and dysregulation of the renin‐angiotensin system. In addition, the occurrence of cerebrovascular diseases, involvement of the peripheral nervous system, and harmful effects of hospitalisation, such as the use of drugs, immobility, and weakness acquired in the intensive care unit, all aggravate muscle damage. Here, we review the multifactorial mechanisms of muscle tissue injury, aggravating conditions, and associated sequelae in long COVID‐19.
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Affiliation(s)
- Camilla Costa Silva
- Center for Biological and Health Sciences, State University of Para, Belém, Brazil
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8
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Bonagurio LP, Murakami AE, Cruz FK, Kaneko IN, Gasparino E, Oliveira CAL, Lozano-Poveda CA, Silva CC, Santos TC. Dietary supplementation with canthaxanthin and 25-hydroxycholecalciferol on the incubation performance and fertility of European quail breeders. Poult Sci 2022; 101:101823. [PMID: 35468423 PMCID: PMC9046627 DOI: 10.1016/j.psj.2022.101823] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 02/26/2022] [Accepted: 02/28/2022] [Indexed: 11/18/2022] Open
Abstract
This study assessed the effects of combined supplementation with canthaxanthin (Cx) and 25-hydroxycholecalciferol (25-OH-D3) on incubation performance, fertility, and chick quality in European quail breeders. A total of 240 birds were distributed in a completely randomized design with 5 diets and 8 replicates. The animals were fed a basal diet containing 50 µg of vitamin D3 or the basal diet supplemented with 3 ppm Cx and 34.5 µg 25-OH-D3, 6 ppm Cx, and 69 µg 25-OH-D3, 9 ppm Cx and 103.5 µg 25-OH-D3, or 12 ppm Cx and 138 µg 25-OH-D3. Incubation performance was analyzed in 2 periods (32 and 38 wk). Breeders aged 32 wk produced eggs with higher hatchability (P = 0.024), hatchability of fertile eggs (P = 0.026) and lower initial plus mid embryonic mortality (P = 0.021), whereas 38-week-old breeders generated chicks with a higher length at hatching (P < 0.001) and lower final plus pipped embryonic mortality (P = 0.021). In both age groups, Cx + 25-OH-D3 levels had a quadratic effect on egg fertility (P < 0.001), hatchability of total (P < 0.001), and fertile eggs (P < 0.001). The fertility and the number of sperm cells in the perivitelline membrane was analyzed in two periods (26 and 40 wk). A quadratic effect of diet and days after mating on both parameters (P < 0.05) was observed. Eggs from supplementing breeders showed a high fertility (P < 0.001) and sperm cell counts (P < 0.001) for up to 7 and 3 d after mating, respectively, then the control group. Moreover, the supplementation of quail breeder diets with 6 ppm Cx + 69 µg 25-OH-D3 enhances sperm cell longevity in sperm storage tubules, hatchability of total and fertile eggs, fertility, and chick quality, especially in older quail's breeders and reduces embryonic mortality.
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Affiliation(s)
- L P Bonagurio
- Department of Animal Science, State University of Maringá, Av. Colombo, 5790, Maringá, Paraná 87020-900, Brazil
| | - A E Murakami
- Department of Animal Science, State University of Maringá, Av. Colombo, 5790, Maringá, Paraná 87020-900, Brazil
| | - F K Cruz
- Department of Animal Science, State University of Maringá, Av. Colombo, 5790, Maringá, Paraná 87020-900, Brazil
| | - I N Kaneko
- Department of Animal Science, State University of Maringá, Av. Colombo, 5790, Maringá, Paraná 87020-900, Brazil
| | - E Gasparino
- Department of Animal Science, State University of Maringá, Av. Colombo, 5790, Maringá, Paraná 87020-900, Brazil
| | - C A L Oliveira
- Department of Animal Science, State University of Maringá, Av. Colombo, 5790, Maringá, Paraná 87020-900, Brazil
| | | | - C C Silva
- DSM Nutritional Products, São Paulo, Brazil
| | - T C Santos
- Department of Animal Science, State University of Maringá, Av. Colombo, 5790, Maringá, Paraná 87020-900, Brazil.
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Marques MFG, Oliveira RFM, Donzele JL, Albino LFT, Tizziani T, Faria LF, Muniz JCL, Dalólio FS, Lozano C, Silva CC. 25-Hydroxycholecalciferol As an Alternative to Vitamin D3 in Diets with Different Levels of Calcium for Broilers Reared Under Heat Stress. Braz J Poult Sci 2022. [DOI: 10.1590/1806-9061-2021-1559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Seber A, Gomes A, Daudt LE, Fernandes JF, Darrigo-Junior LG, Siminone A, Silva CC, Hamerschlak N, Bonfim CS. OUTCOMES OF PEDIATRIC HEMATOPOIETIC STEM CELL TRANSPLANTS (HSCT) PERFORMED IN BRAZIL BETWEEN 2008 AND 2019. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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11
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Funke VAM, Lima ACM, Hamerschlak N, Colturato V, Souza MP, Vigorito AC, Teixeira GM, Rocha VG, Mariano LCB, Lerner D, Barros GMN, Pasquini R, Paz AA, Neves HRA, Simioni AJ, Silva CC, Martins V, Voltarelli CL, Tan BC, Flowers ME. ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANT FOR MYELOFIBROSIS IN BRAZIL: FACING OUR CHALLENGES. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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12
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Silva CC, Minella JPG, Schlesner A, Merten GH, Barros CAP, Tassi R, Dambroz APB. Unpaved road conservation planning at the catchment scale. Environ Monit Assess 2021; 193:595. [PMID: 34426857 DOI: 10.1007/s10661-021-09398-z] [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] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
In addition to soil losses on hillslopes, unpaved rural roads, especially when poorly designed and maintained, can be a significant contributor to the erosive processes seen at the catchment scale. In areas with deep soils, the solutions primarily focus on channeling excess surface runoff into settling ponds or terraces. However, few studies have addressed runoff control from roads on steep slopes in areas of shallow soil. Modeling hydrological processes at the catchment scale is a useful strategy for choosing the most effective and least costly conservation practices to control surface runoff. This study applies a mathematical model to a monitored catchment in southern Brazil to better understand the effects of conservation practices on unpaved roads and their impact on the hydrological and erosive dynamics of a small rural catchment. We calibrated the LISEM model using data from eight stormwater events and evaluated how three different road conservation scenarios-low (LI), medium (MI), and high intensity (HI)-contributed to sediment yield (SY), surface runoff volume (Qe), and peak flow (Qp) reduction. The LI and MI scenarios involved installation of hydraulic structures to control the road surface runoff (i.e. road ditch graveling, diversion weirs and grass waterways) while the HI scenario added surface runoff control practices (grass strips) to surrounding crop fields, in addition to the practices included in the MI scenario. Based on these scenarios, the results showed a Qe reduction at the catchment outlet from - 3.5% (LI) to - 22.5% (HI). The Qp and SY varied from + 6.0% (LI) to - 292.5% (HI) and from + 20.0% (LI) to - 963.9% (HI), respectively. These results show that the low- and medium-intensity practices were not effective in controlling surface runoff from roads, based on the Qe, Qb, and SY observed at the catchment's outlet. On the other hand, when MI scenarios were complemented with practices to control surface runoff in the cultivated areas, a significant reduction in surface runoff (Qe and Qp) and SY was verified.
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Affiliation(s)
- C C Silva
- Post-Graduation Course of Soil Science, Federal University of Santa Maria, Roraima Av., n.1000, Santa Maria, RS, Postal Code 97105-900, Brazil
| | - J P G Minella
- Department of Soils, Federal University of Santa Maria, Roraima Av., n.1000, Santa Maria, RS, Postal Code 97105-900, Brazil.
| | - A Schlesner
- Post-Graduation Course of Soil Science, Federal University of Santa Maria, Roraima Av., n.1000, Santa Maria, RS, Postal Code 97105-900, Brazil
| | - G H Merten
- Department of Civil Engineering, University of Minnesota-Duluth, 1405 University Drive, Duluth, MN, 55812, USA
| | - C A P Barros
- Soil Department, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - R Tassi
- Departamento de Engenharia Sanitária E Ambiental (DESA), Universidade Federal de Santa Maria (UFSM), Santa Maria, Brazil
| | - A P B Dambroz
- Post-Graduation Course of Soil Science, Federal University of Santa Maria, Roraima Av., n.1000, Santa Maria, RS, Postal Code 97105-900, Brazil
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Tavares BS, Tsosura TVS, Mattera MSLC, Santelli JO, Belardi BE, Chiba FY, Cintra LTA, Silva CC, Matsushita DH. Effects of melatonin on insulin signaling and inflammatory pathways of rats with apical periodontitis. Int Endod J 2021; 54:926-940. [PMID: 33411973 DOI: 10.1111/iej.13474] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 08/21/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 12/15/2022]
Abstract
AIM To verify the effects of melatonin supplementation on insulin sensitivity, plasma concentrations of inflammatory cytokines, insulin signalling and inflammatory pathways in the soleus (SM) and extensor digitorum longus (EDL) muscles of rats with apical periodontitis (AP). METHODOLOGY Seventy-two Wistar rats were distributed into 4 groups: (a) control (C), (b) control supplemented with melatonin (M), (c) AP (AP), and (d) AP supplemented with melatonin (AP + M). AP was induced by pulp exposure of the maxillary and mandibular right first and second molars to the oral environment. After AP induction, oral supplementation with 5 mg kg-1 melatonin (diluted in drinking water) for 60 days was initiated. At the end of the treatment, the following were analysed: (1) plasma concentrations of insulin and inflammatory cytokines (TNF-α, IL-6, IL-1β and IL-10) using ELISA kits; (2) glycaemia using enzymatic assay; (3) insulin resistance using homoeostasis model assessment of insulin resistance (HOMA-IR) index; and (4) phosphorylation status of pp185 tyrosine, Akt serine, IKKα/β, and JNK in SM and EDL using Western blot. Analysis of variance of two or three factors was performed, followed by the Bonferroni test. P values < 0.05 were considered statistically significant. RESULTS AP promoted insulin resistance, significantly increased (P < 0.05) plasma concentrations of pro-inflammatory cytokines (TNF-α, IL-6, and IL-1β), significantly decreased (P < 0.05) the concentration of anti-inflammatory cytokine IL-10, impaired insulin signalling in SM, and increased IKKα/β phosphorylation status in SM and EDL. Melatonin supplementation in rats with AP improved insulin sensitivity, significantly decreased (P < 0.05) TNF-α and IL-1β, significantly increased (P < 0.05) IL-10 plasma concentrations, and changed the insulin signalling in soleus muscle and IKKα/β phosphorylation status in SM and EDL muscles. CONCLUSIONS Melatonin is a potent adjuvant treatment for improving apical periodontitis-associated changes in insulin sensitivity, insulin signalling and inflammatory pathways. In addition, the negative impact of AP on general health was also demonstrated.
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Affiliation(s)
- B S Tavares
- Programa de Pós-graduação Multicêntrico em Ciências Fisiológicas, PPGMCF, SBFis, Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - T V S Tsosura
- Programa de Pós-graduação Multicêntrico em Ciências Fisiológicas, PPGMCF, SBFis, Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - M S L C Mattera
- Programa de Pós-graduação Multicêntrico em Ciências Fisiológicas, PPGMCF, SBFis, Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - J O Santelli
- Programa de Pós-graduação Multicêntrico em Ciências Fisiológicas, PPGMCF, SBFis, Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - B E Belardi
- Programa de Pós-graduação Multicêntrico em Ciências Fisiológicas, PPGMCF, SBFis, Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - F Y Chiba
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - L T A Cintra
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - C C Silva
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - D H Matsushita
- Programa de Pós-graduação Multicêntrico em Ciências Fisiológicas, PPGMCF, SBFis, Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
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14
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Araujo LF, Araujo CSS, Pereira RJG, Bittencourt LC, Silva CC, Cisneros F, Hermes RG, Sartore YGA, Dias MT. The dietary supplementation of canthaxanthin in combination with 25OHD3 results in reproductive, performance, and progeny quality gains in broiler breeders. Poult Sci 2020; 98:5801-5808. [PMID: 31309222 DOI: 10.3382/ps/pez377] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/09/2019] [Indexed: 11/20/2022] Open
Abstract
The objective of this study was to evaluate the effects of the dietary supplementation of canthaxanthin and cholecalciferol (25OHD3) to broiler breeders and their progenies on their performance. Eighty 25-wk-old Cobb 500 broiler breeders were distributed according to a completely randomized design in 2 experimental treatments, with 10 replicates of 4 birds each. The treatments consisted of the supplementation or not of a corn-soybean meal diet with canthaxanthin + 25OHD3 to broiler breeders fed from 25 to 62 wk of age. Egg production, fertility, hatchability, hatchability of fertile eggs, embryonic mortality, and egg specific gravity were evaluated. Breeders were inseminated at 35, 45, and 62 wk of age, the eggs were incubated, and the performance of the progenies was evaluated. From the progeny of each breeder age, 300 male chicks were distributed according to a completely randomized design in a 2 × 2 factorial arrangement (chicks from breeders supplemented or not with canthaxanthin + 25OHD3 and chicks supplemented or not with canthaxanthin + 25OHD3), totaling 4 treatments with 5 replicates of 15 birds each. Canthaxanthin + 25OHD3 were supplied to the chicks until 21 D of age. The combination of canthaxanthin and 25OHD3, containing 69 mg of 25OHD3 and 6 g of canthaxanthin, was supplemented at 1 kg/t of feed. Breeders supplemented with canthaxanthin + 25OHD3 showed higher egg production, total hatchability, hatchability of fertile eggs, and lower early embryo mortality compared with those fed the control diet. Broilers from breeders fed canthaxanthin + 25OHD3 and supplemented with this additive up to 21 D of age presented a better feed conversion ratio and higher carcass and breast yields than those derived from nonsupplemented breeders.
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Affiliation(s)
- L F Araujo
- Department of Animal Science, Universidade de São Paulo, Pirassununga, Brazil
| | - C S S Araujo
- Departament of Animal Nutrition and Production, Universidade de São Paulo, Pirassununga, Brazil
| | - R J G Pereira
- Departament of Animal Reproduction, Universidade de São Paulo, São Paulo, Brazil
| | | | - C C Silva
- DSM Nutritional Products, São Paulo, Brazil
| | - F Cisneros
- DSM Nutritional Products, São Paulo, Brazil
| | - R G Hermes
- DSM Nutritional Products, São Paulo, Brazil
| | - Y G A Sartore
- Departament of Animal Nutrition and Production, Universidade de São Paulo, Pirassununga, Brazil
| | - M T Dias
- Departament of Animal Nutrition and Production, Universidade de São Paulo, Pirassununga, Brazil
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15
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Araújo CSS, Hermes RG, Bittencourt LC, Silva CC, Araújo LF, Granghelli CA, Pelissari PH, Roque FA, Leite BGS. Different dietary trace mineral sources for broiler breeders and their progenies. Poult Sci 2019; 98:4716-4721. [PMID: 30993341 DOI: 10.3382/ps/pez182] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 09/20/2018] [Accepted: 03/18/2019] [Indexed: 11/20/2022] Open
Abstract
The objective of this study was to evaluate the effect of different trace mineral supplementation sources in the diet of broiler breeders on their performance and on their progenies. In total, 128 Cobb 500 broiler breeders were distributed according to a completely randomized experimental design in 2 experimental treatments. The control group was fed a diet supplemented with inorganic trace minerals (ITM), while the other group was fed a diet supplemented with reduced levels of trace minerals in the organic form. Eggs were collected when breeders were 35, 47, and 53 wk old. Their progeny (450 hatchlings) were divided according to trace mineral supplementation source from the maternal diet, creating 2 treatments with 16 replicates of 15 birds each. Organic trace mineral (OTM) supplementation improved broiler breeder performance, as shown by higher egg production and better eggshell quality of OTM-fed hens compared with those fed ITM. Egg fertility and hatchability were not influenced by the treatments. As to progeny performance, higher weight gain, and consequently, better feed conversion ratio, were obtained in the 41-day-old progenies of OTM-fed breeders, independently of hen age. Maternal diet trace mineral source did not affect broiler carcass, breast meat, or leg yields. The results of the present study show that supplementing broiler breeder diets with organic trace mineral sources enhances the performance of breeders and their progenies.
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Affiliation(s)
- C S S Araújo
- Departament of Animal Nutrition and Production, Universidade de São Paulo, 13635900 Pirassununga, Brazil
| | - R G Hermes
- Department of Animal Science, Universidade de São Paulo 13635900 Pirassununga, Brazil
| | - L C Bittencourt
- Department of Animal Science, Universidade de São Paulo 13635900 Pirassununga, Brazil
| | - C C Silva
- Department of Animal Science, Universidade de São Paulo 13635900 Pirassununga, Brazil
| | - L F Araújo
- Department of Animal Science, Universidade de São Paulo, Pirassununga, Brazil
| | - C A Granghelli
- Departament of Animal Nutrition and Production, Universidade de São Paulo, 13635900 Pirassununga, Brazil
| | - P H Pelissari
- Departament of Animal Nutrition and Production, Universidade de São Paulo, 13635900 Pirassununga, Brazil
| | - F A Roque
- Department of Animal Science, Universidade de São Paulo, Pirassununga, Brazil
| | - B G S Leite
- Department of Animal Science, Universidade de São Paulo, Pirassununga, Brazil
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16
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Blassioli-Moraes MC, Khrimian A, Michereff MFF, Magalhães DM, Hickel E, de Freitas TFS, Barrigossi JAF, Laumann RA, Silva AT, Guggilapu SD, Silva CC, Sant'Ana J, Borges M. Male-Produced Sex Pheromone of Tibraca limbativentris Revisited: Absolute Configurations of Zingiberenol Stereoisomers and their Influence on Chemotaxis Behavior of Conspecific Females. J Chem Ecol 2019; 46:1-9. [PMID: 31840210 DOI: 10.1007/s10886-019-01125-w] [Citation(s) in RCA: 7] [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: 08/06/2019] [Revised: 10/19/2019] [Accepted: 11/11/2019] [Indexed: 11/28/2022]
Abstract
The rice stalk stink bug, Tibraca limbativentris, is an important rice pest in Brazil with a high invasive potential for Mexico and the USA. The sex pheromone of this species was previously identified as a combination of two stereoisomers of 1,10-bisaboladien-3-ol (zingiberenol), but the absolute configurations of these sesquiterpenes were not determined, neither were their effect(s) on T. limbativentris behavior evaluated. In this study, using two chiral columns, we compared retention times of the two natural 1,10-bisaboladien-3-ol stereoisomers from air-entrainment samples of male T. limbativentris with those of synthetic stereoisomers of 1,10-bisaboladien-3-ol. The results showed that T. limbativentris males produce (3S,6S,7R)-1,10-bisaboladien-3-ol (1) and (3R,6S,7R)-1,10-bisaboladien-3-ol (5) as their sex pheromone. Two new minor, male-specific components were also identified as cis and trans isomers of 2,10-bisaboladien-1-ol (sesquipiperitol). Y-tube olfactometer bioassays showed that the major (3S,6S,7R) isomer 1 was essential for attraction of T. limbativentris females, but the minor (3R,6S,7R) isomer 2 was not, nor did it show synergistic/antagonistic effects when added to the major isomer. The (1S,6S,7R) and (1R,6S,7R) stereoisomers of sesquipepiritol also attracted T. limbativentris females.
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Affiliation(s)
- M C Blassioli-Moraes
- Laboratório de Semioquímicos, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil
| | - A Khrimian
- Invasive Insect Biocontrol and Behavior Laboratory, USDA-ARS, NEA, Beltsville, MD, 20705, USA
| | - M F F Michereff
- Laboratório de Semioquímicos, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil
| | - D M Magalhães
- Laboratório de Semioquímicos, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil
| | - E Hickel
- Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - EPAGRI - Estação Experimental de Itajaí, Rod. Antônio Heil, 6.800 Itaipava, Itajaí, SC, 88318-112, Brazil
| | - T F S de Freitas
- Laboratório de Etologia e Ecologia Química de Insetos, PPG-Fitotecnia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 7712, Porto Alegre, RS, 91540-000, Brazil
| | - J A F Barrigossi
- Embrapa Arroz e Feijão, Rodovia GO 462, km 12, Santo Antônio de Goiás, GO, 75375-000, Brazil
| | - R A Laumann
- Laboratório de Semioquímicos, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil
| | - A T Silva
- Laboratório de Semioquímicos, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil.,Faculdade de Agronomia e Medicina Veterinária (FAV), Campus Darcy Ribeiro, Universidade de Brasilia, Brasília, DF, 70910-900, Brazil
| | - S D Guggilapu
- National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, Laboratory of Bioorganic Chemistry, Bethesda, MD, 20892, USA
| | - C C Silva
- Laboratório de Semioquímicos, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil
| | - J Sant'Ana
- Laboratório de Etologia e Ecologia Química de Insetos, PPG-Fitotecnia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 7712, Porto Alegre, RS, 91540-000, Brazil
| | - M Borges
- Laboratório de Semioquímicos, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil.
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17
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Pinheiro TN, Cintra LTA, Azuma MM, Benetti F, Silva CC, Consolaro A. Palatogingival groove and root canal instrumentation. Int Endod J 2019; 53:660-670. [PMID: 31808951 DOI: 10.1111/iej.13259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 08/06/2018] [Accepted: 12/04/2019] [Indexed: 11/29/2022]
Abstract
AIM To evaluate the morphology and impact of root canal preparation in maxillary incisors with palatogingival grooves (PGG). METHODOLOGY Twenty extracted human maxillary incisors with PGG were subjected to macroscopic analysis and scanning electron microscopy analysis (SEM). The following characteristics of the PGG were evaluated: depth, point of origin in the cingulum, extension and position on the lingual surface. Furthermore, the presence of calculus, communications between the root canal system and the PGG, and root resorptions were investigated. The root canals were subsequently instrumented with K-files of three consecutive sizes. The teeth were sectioned, and the axial plane of each tooth section was imaged using SEM before and after instrumentation. The distance between the root canal walls and the PGG was calculated according to the location. Additionally, the distance between canal walls and cementum was measured at three different sites, to verify if instrumentation influenced dentine removal on a specific wall in teeth with PGG. Statistical analysis was performed using the Mann-Whitney or Student's t-test (P < 0.05). RESULTS Macroscopic analysis revealed that a deep groove was most frequently observed (75%), followed by a depression/shallow groove (25%) (P < 0.05). PGG typically originated in the distal margin ridge of the cingulum (65%) (P < 0.05), extending only to the middle (45%) or up to the apical (50%) third of the root (P < 0.05). Additionally, PGGs were typically located on the distal aspect of the lingual surface (70%) (P < 0.05). Calculus was concentrated on the surface of the crown and cementum-enamel junction (P < 0.05). Communication between the root canal and PGG was present in 35% of teeth, and root resorptions were noted in 50% of teeth. The distance between the external root surface and the pulp cavity was significantly narrower after instrumentation (P < 0.05); however, root canal preparation did not influence dentine removal on the specific wall associated with the groove (P > 0.05). CONCLUSIONS Palatogingival grooves were characteristically deep and originated from the distal margin of the cingulum. Although it has been associated with a thinner root wall, root canal preparation did not influence the thickness of the specific wall in the maxillary incisors with PGG.
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Affiliation(s)
- T N Pinheiro
- Oral Pathology and Oral Medicine, Dental School of Amazonas State University, Manaus, Brazil
| | - L T A Cintra
- Endodontics, School of Dentistry, São Paulo State University (Unesp), Araçatuba, Brazil
| | - M M Azuma
- Cariology, Restorative Sciences and Endododontics, University of Michigan, Ann Arbor, MI, USA
| | - F Benetti
- Endodontics, School of Dentistry, São Paulo State University (Unesp), Araçatuba, Brazil.,Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - C C Silva
- Endodontics, School of Dentistry, São Paulo State University (Unesp), Araçatuba, Brazil
| | - A Consolaro
- Oral Pathology, Bauru Dental School, University of São Paulo, Bauru, Brazil
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18
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Oliveira GS, Lopes DRG, Andre C, Silva CC, Baglinière F, Vanetti MCD. Multispecies biofilm formation by the contaminating microbiota in raw milk. Biofouling 2019; 35:819-831. [PMID: 31558046 DOI: 10.1080/08927014.2019.1666267] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 04/29/2019] [Revised: 08/26/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Biofilms can be formed on the surfaces of dairy processing equipment and are a potential source of product contamination. This study evaluated the diversity of multispecies biofilms formed on stainless steel (SS) due to the contaminating microbiota in raw milk. Samples of raw milk were used: one was fresh milk and the other maintained in refrigerated bulk tanks for up to 48 h. The mesophilic aerobic contamination was ∼104 CFU ml-1 in fresh milk and 106 CFU ml-1 in bulk milk. SS coupons were kept immersed in the milk at 7 ±2 °C for 10 days, and every two days, the raw milk was changed for samples of the same origin collected on the current day. After incubation for 10 days, sessile cells in the biofilm reached 105 CFU cm-2 in the presence of fresh milk, and 106 CFU cm-2 in the presence of bulk milk. The genetic diversity analysis showed that Gammaproteobacteria and Bacilli predominated in the biofilms throughout the incubation of both milk samples and these biofilms showed a reduction in diversity over time. The main classes of bacteria found in these biofilms have representatives of great importance since many of them have spoilage potential.
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Affiliation(s)
- G S Oliveira
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - D R G Lopes
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - C Andre
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - C C Silva
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - F Baglinière
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - M C D Vanetti
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
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Pimenta F, Ramos MM, Silva CC, Costa PA, Maroco J, Leal I. Self-regulation model applied to menopause: a mixed-methods study. Climacteric 2019; 23:84-92. [PMID: 31365272 DOI: 10.1080/13697137.2019.1640196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Objectives: Considering that bio-psycho-sociocultural variables influence menopause, this research aimed to assess the suitability of the self-regulation model in explaining the menopausal experience, and to explore differences among participants with different characteristics (e.g. health, sexual related) regarding menopause representations.Methods: Overall, 27 Portuguese women aged 40-65 years were assessed for sociodemographics, health, and sexual activity, as well as menopausal status and symptoms. Semi-structured in-depth interviews were conducted. A directed content analysis was performed, and the qualitative data presented. Afterward, the frequencies of the categories were analyzed through quantitative methods (Mann-Whitney U tests).Results: Aging was the most frequently mentioned feature regarding menopause Identity, whereas vasomotor symptoms were the most mentioned regarding Negative Consequences and menses cessation regarding Positive Consequences. Features related to Cause (hormonal changes) and Control (need for acceptance) of menopause were also identified. No differences were found in the frequency of menopause representations between women with different characteristics (e.g. with higher vs. lower vasomotor symptom severity).Conclusion: The suitability of the self-regulation model to explain these women's menopause experience was confirmed and the representations did not vary among participants with different characteristics. This research might help professionals and researchers in developing comprehensive interventions, based on this theoretical model.
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Affiliation(s)
- F Pimenta
- William James Center for Research, ISPA - Instituto Universitário, Lisbon, Portugal
| | - M M Ramos
- William James Center for Research, ISPA - Instituto Universitário, Lisbon, Portugal
| | - C C Silva
- Manchester Centre for Health Psychology, Division of Psychology and Mental Health, The University of Manchester, Manchester, UK
| | - P A Costa
- William James Center for Research, ISPA - Instituto Universitário, Lisbon, Portugal
| | - J Maroco
- William James Center for Research, ISPA - Instituto Universitário, Lisbon, Portugal
| | - I Leal
- William James Center for Research, ISPA - Instituto Universitário, Lisbon, Portugal
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20
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do Nascimento JA, Silva CC, Dos Santos HH, de Almeida Ferreira JJ, de Andrade PR. A preliminary study of static and dynamic balance in sedentary obese young adults: the relationship between BMI, posture and postural balance. Clin Obes 2017; 7:377-383. [PMID: 28801963 DOI: 10.1111/cob.12209] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/03/2017] [Accepted: 07/07/2017] [Indexed: 11/29/2022]
Abstract
The aim of this study was to evaluate the postural control of obese young adults with normal body mass index during different static (bipedic and unipedic support) and dynamic postural conditions (gait velocity and limits of stability) in order to compare the static and dynamic balance of these individuals. A cross-sectional quantitative study was carried out to evaluate static and dynamic balance in 25 sedentary individuals. The sample was divided into two groups, 10 in the normal-weight group (24.70 ± 3.89 years and 21.5 ± 1.66 kg m-2 ) and 15 in the obese group (26.80 ± 5.16 years and 35.66 ± 4.29 kg m-2 ). Postural evaluation was performed through visual inspection, and balance analyses were performed using the Timed Up & Go test (TUGT) and Balance System (Biodex). Descriptive analyses, Fisher's exact test and Mann Whitney U-tests were performed using the Statistical Package for Social Sciences (SPSS - 20.0, Armonk, NY) software. Most of the obese volunteers presented postural alterations, such as head protrusion (47.6%), hyperkyphosis (46.7%) and hyperlordosis (26.7%). Medial-lateral dynamic displacement, risk of falls and mean time to perform the limits of stability test and TUGT were higher for obese subjects (P < 0.05), while there were no significant differences between the groups (P > 0.05) for static balance tests for either bipedal or unipedal tasks. The disadvantage presented by the young obese subjects occurs in dynamic activities, representing worse balance and an increase in time needed to accomplish these activities.
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Affiliation(s)
- J A do Nascimento
- Academic Physiotherapy, Universidade Federal da Paraíba/UFPB, João Pessoa, PB, Brazil
| | - C C Silva
- Academic Physiotherapy, Universidade Federal da Paraíba/UFPB, João Pessoa, PB, Brazil
| | - H H Dos Santos
- Physical Therapy Department, Universidade Federal da Paraíba/UFPB, João Pessoa, PB, Brasil
| | | | - P R de Andrade
- Physical Therapy Department, Universidade Federal da Paraíba/UFPB, João Pessoa, PB, Brasil
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Lopes PR, Moreira MCS, Marques SM, Pinto ISJ, Macedo LM, Silva CC, Freiria-Oliveira AH, Rebelo ACS, Reis AAS, Rosa DA, Ferreira-Neto ML, Castro CH, Pedrino GR. Association of exercise training and angiotensin-converting enzyme 2 activator improves baroreflex sensitivity of spontaneously hypertensive rats. ACTA ACUST UNITED AC 2016; 49:e5349. [PMID: 27533767 PMCID: PMC4988479 DOI: 10.1590/1414-431x20165349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 03/09/2016] [Accepted: 05/24/2016] [Indexed: 11/21/2022]
Abstract
The present study sought to determine cardiovascular effects of aerobic training associated with diminazene aceturate (DIZE), an activator of the angiotensin converting enzyme 2, in spontaneously hypertensive rats (SHRs). Male SHRs (280–350 g) were either subjected to exercise training or not (sedentary group). The trained group was subjected to 8 weeks of aerobic training on a treadmill (five times a week, lasting 60 min at an intensity of 50–60% of maximum aerobic speed). In the last 15 days of the experimental protocol, these groups were redistributed into four groups: i) sedentary SHRs with daily treatment of 1 mg/kg DIZE (S+D1); ii) trained SHRs with daily treatment of 1 mg/kg DIZE (T+D1); iii) sedentary SHRs with daily treatment of vehicle (S+V); and iv) trained SHRs with daily treatment of vehicle (T+V). After treatment, SHRs were anesthetized and subjected to artery and femoral vein cannulation prior to the implantation of ECG electrode. After 24 h, mean arterial pressure (MAP) and heart rate (HR) were recorded; the baroreflex sensitivity and the effect of double autonomic blockade (DAB) were evaluated in non-anesthetized SHRs. DIZE treatment improved baroreflex sensitivity in the T+D1 group as compared with the T+V and S+D1 groups. The intrinsic heart rate (IHR) and MAP were reduced in T+D1 group as compared with T+V and S+D1 groups. Hence, we conclude that the association of exercise training with DIZE treatment improved baroreflex function and cardiovascular regulation.
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Affiliation(s)
- P R Lopes
- Centro de Pesquisas em Neurociência e Fisiologia Cardiovascular, Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - M C S Moreira
- Centro de Pesquisas em Neurociência e Fisiologia Cardiovascular, Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - S M Marques
- Centro de Pesquisas em Neurociência e Fisiologia Cardiovascular, Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - I S J Pinto
- Centro de Pesquisas em Neurociência e Fisiologia Cardiovascular, Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - L M Macedo
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - C C Silva
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - A H Freiria-Oliveira
- Centro de Pesquisas em Neurociência e Fisiologia Cardiovascular, Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - A C S Rebelo
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - A A S Reis
- Departamento de Bioquímica e Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - D A Rosa
- Centro de Pesquisas em Neurociência e Fisiologia Cardiovascular, Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - M L Ferreira-Neto
- Faculdade de Educação Física, Universidade Federal de Uberlândia, Uberlândia, MG, Brasil
| | - C H Castro
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
| | - G R Pedrino
- Centro de Pesquisas em Neurociência e Fisiologia Cardiovascular, Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, Brasil
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Silva CC, Schwamborn R, Lins Oliveira JE. Population biology and color patterns of the blue land crab, Cardisoma guanhumi (Latreille 1828) (Crustacea: Gecarcinidae) in the Northeastern Brazil. BRAZ J BIOL 2015; 74:949-58. [PMID: 25627608 DOI: 10.1590/1519-6984.01913] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 07/07/2013] [Indexed: 11/21/2022] Open
Abstract
The objective of this study was to analyze the population biology and color patterns of Cardisoma guanhumi Latreille, 1828 in a mangrove area in Natal, Rio Grande do Norte, Brazil. Crabs were collected monthly between February 2010 and January 2012 and totaled 1,837 individuals. Sex ratios were similar between males and females in the first year and differed in the second. Sex ratios by size class differed statistically in the extremes of the distribution, with an abundance of males in the large size classes. There was no difference (p > 0.05) in carapace width between males and females in the first year, but in the second year, males were larger than females (p = 0.003), showing the importance of considering interannual variation in such studies. Both sexes presented a unimodal distribution. The size of first maturing of the females was 6.00 cm. Asymptotic carapace width for males was 9.4 cm and females for 9.2 cm, using the Wetherall method. There was no defined modal progression, which made the determination of the Von Bertalanffy growth parameter K impossible. Juveniles were found throughout all months of the year, demonstrating that there was no defined period of recruiting, although slightly fewer juveniles were found in the dry season. Four color patterns were observed, the three first patterns were the same for both sexes, while the fourth pattern was observed in females only. The four color patterns identified could be clearly related to the stage of development (size) and sexual maturity of the animal.
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Affiliation(s)
- C C Silva
- Programa de Pós-graduação em Biologia Animal, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brazil
| | - R Schwamborn
- Departamento de Zoologia, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brazil
| | - J E Lins Oliveira
- Laboratório de Biologia Pesqueira, Departamento de Oceanografia e Limnologia, Universidade Federal do Rio Grande do Norte - UFRN, Natal, RN, Brazil
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Preis IS, Fiúza ATL, Silva CC, Braga JFV, Couto RM, Martins NRDS, Ecco R. Pathological, immunohistochemical, and molecular findings in commercial laying hens and in backyard chickens naturally infected with the infectious laryngotracheitis virus. Rev Bras Cienc Avic 2014. [DOI: 10.1590/1516-635x1604359-366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- IS Preis
- Universidade Federal de Minas Gerais, Brazil
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Fontoura MSH, Matutino AR, Silva CC, Santana MC, Nobre-Bastos M, Oliveira F, Barreto BB, Araujo-Neto CA, Andrade SC, Brim RV, Cardoso MRA, Nascimento-Carvalho CM. Differences in evolution of children with non-severe acute lower respiratory tract infection with and without radiographically diagnosed pneumonia. Indian Pediatr 2011; 49:363-9. [PMID: 22080618 DOI: 10.1007/s13312-012-0085-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2011] [Accepted: 08/02/2011] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To identify differences in the evolution of children with non-severe acute lower respiratory tract infection between those with and without radiographically diagnosed pneumonia. DESIGN Prospective cohort study. SETTING A public university pediatric hospital in Salvador, Northeast Brazil. PATIENTS Children aged 2-59 months. METHODS By active surveillance, the pneumonia cases were prospectively identified in a 2-year period. Each case was followed-up for changes in various clinical symptoms and signs. Demographic, clinical and radiographic data were recorded in standardized forms. Exclusion was due to antibiotic use in the previous 48 hours, signs of severe disease, refusal to give informed consent, underlying chronic illness, hospitalization in the previous 7 days or amoxicillin allergy. Chest X-ray (CXR) was later read by at least 2 independent pediatric radiologists. MAIN OUTCOME MEASURES Radiographic diagnosed pneumonia based on agreed detection of pulmonary infiltrate or pleural effusion in 2 assessments. RESULTS A total of 382 patients receiving amoxicillin were studied, of whom, 372 (97.4%) had concordant radiographic diagnosis which was pneumonia (52%), normal CXR (41%) and others (7%). By multivariate analysis, age (OR=1.03; 95% CI: 1.02-1.05), disease > 5 days (OR = 1.04; 95% CI: 1.001-1.08), reduced pulmonary expansion (OR = 3.3; 95% CI: 1.4-8.0), absence of wheezing (OR = 0.5; 95% CI: 0.3-0.9), crackles on admission (OR = 2.0; 95% CI: 1.2-3.5), inability to drink on day 1 (OR = 4.2; 95% CI: 1.05-17.3), consolidation percussion sign (OR = 7.0; 95% CI: 1.5-32.3), tachypnea (OR = 2.0; 95% CI: 1.09-3.6) and fever (OR = 3.6; 95% CI: 1.4-9.4) on day 2 were independently associated with pneumonia. The highest positive predictive value was at the 2nd day of evolution for tachypnea (71.0%) and fever (81.1%). CONCLUSION Persistence of fever or tachypnea up to the second day of amoxicillin treatment is predictive of radiographically diagnosed pneumonia among children with non-severe lower respiratory tract diseases.
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Affiliation(s)
- M-S H Fontoura
- Department of Pediatrics, Federal University of Bahia School of Medicine, Salvador, Brazil
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Silva CC, Domingues AL, Lopes EP, Morais CN, Santos RB, Luna CF, Nader HB, Martins JR. Schistosomiasis mansoni: ultrasound-evaluated hepatic fibrosis and serum concentrations of hyaluronic acid. Ann Trop Med Parasitol 2011; 105:233-9. [PMID: 21801502 DOI: 10.1179/136485911x12987676649629] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Schistosomiasis mansoni is a fibrogenic liver disease that constitutes a major health problem in north-eastern Brazil. Although one common manifestation of the disease, periportal fibrosis (PPF), can be assessed by ultrasonography by well-trained physicians, the necessary equipment and personnel are not always readily available. Serum markers, including hyaluronic acid (HA), have been used as alternative means of measuring fibrosis. Recently serum concentrations of HA have been evaluated in 77 Brazilians (61 cases of schistosomiasis mansoni and 16 healthy controls) and compared against the ultrasound-evaluated PPF in the same subjects. The HA was measured using a non-competitive fluorescence-based assay, while the PPF was explored using a portable ultrasound scanner (SSD-500; Aloka, Tokyo) and graded, as patterns A-F, according to the World Health Organization's 'Niamey protocol'. In general, the serum concentrations of HA were found to be positively correlated with the severity of the PPF. The mean concentration of HA in the sera of the 16 controls was significantly lower than that recorded in the schistosomiasis cases who showed PPF of patterns D or E (P<0·001 for each). The cases who showed pattern-C PPF also had significantly less HA in their sera than the cases with PPF of patterns D or E (P<0·001 for each), and the cases with pattern-D fibrosis had significantly lower HA concentrations in their sera than the cases with PPF of pattern E (P<0·001). In an analysis based on a receiver-operating-characteristic (ROC) curve, an HA concentration of 20·2 μg/litre of serum was identified as a threshold that could be used to distinguish moderate cases of PPF (i.e. patterns C or D) from the more advanced cases (i.e. patterns E or F), with a sensitivity of 60% and specificity of 65%. In conclusion, it appears that serum concentrations of hyaluronic acid could be used as markers for periportal fibrosis in patients with schistosomiasis mansoni.
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Affiliation(s)
- C C Silva
- Universidade Federal de Pernambuco, Rua Irmã Maria Davi 154, Recife, PE, Brazil
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Magalhães AO, Volkmer-Ribeiro C, Fujimoto LBM, Barbosa MF, Cardoso JL, Barcellos JFM, Silva CC, Campos RR, Cunha MCF, Freitas-Lemos AP, Dos-Santos MC. Induction of cell migration and activation in mice by the freshwater sponge Drulia uruguayensis Bonetto & Ezcurra de Drago, 1968 (Porifera: Metaniidae). J Venom Anim Toxins Incl Trop Dis 2011. [DOI: 10.1590/s1678-91992011000100009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Reis DA, Silva CC, Pontes AB, Zaupa MC, Gomes VCA, Costa DF, Silva NH, Cajado LCS, Silva ACV, Silva AMPS. A 010 Cerebrovascular Diseases: Mortality into the Brazil in 2006. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71673-3] [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: 10/20/2022]
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Reis DA, Silva CC, Pontes AB, Zaupa MC, Gomes VCA, Costa DF, Silva ACV, Ohama GJ, Nascimento BAM, Mendonça LT. A 021 Atherosclerosis: Mortality Profile, from January 2000 to March 2009 in Brazil. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71684-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Reis DA, Silva CC, Pontes AB, Zaupa MC, Gomes VCA, Costa DF, Silva NH, Lima RM, Gonçalves AFC, Silva ACV. D 009 Diabetes Mellitus (DM) and Smoking in Patients Assisted by the Family Health Program (FHP) in Brazil. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71703-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Reis DA, Silva CC, Pontes AB, Zaupa MC, Gomes VCA, Costa DF, Silva NH, Cajado LCS, Silva ACV, Silva AMPS. A 023 Amazônia under the Optics of the Prevalence of the Obesity in the Services of Basic Attention and of Atherosclerosis, as Hospital Morbidity in Adults. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71686-1] [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: 11/15/2022]
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Reis DA, Silva CC, Pontes AB, Zaupa MC, Gomes VCA, Costa DF, Cajado LCS, Ohana GJ, Nascimento BAM, Gonçalves AFC. H 026 Risk Factors for Atherosclerosis: Prevalence of the Extreme Arterial Alcohol Consumption and Systemic Hypertension in the Brazilian Capitals, the Period of 2002 the 2005. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71736-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Reis DA, Silva CC, Pontes AB, Zaupa MC, Gomes VCA, Costa DF, Silva NH, Cajado LCS, Ohana GJ, Nascimento BAM. H 019 Essential Hypertension: Morbidity Profile During January 2008 to March 2009 in Brazil. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71729-5] [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: 11/28/2022]
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33
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Reis DA, Silva CC, Pontes AB, Zaupa MC, Gomes VCA, Costa DF, Silva NH, Cajado LCS, Silva ACV, Silva AMPS. A 022 Analysis of the Incident of Admissions by Acute Myocardial Infarction in Young Persons and Adults, in the Northern Region of Brazil in the Period of January 2008 to March 2009. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71685-x] [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: 10/20/2022]
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Silva CC, Gracia CM, Costa RP, Piegas LS, Pimentel IC. D 011 Breakfast Skipping, Having Dinner as the Main Meal as well as High Food Ingestion at Weekends Raise the Risk of Central Obesity. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71705-2] [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: 11/28/2022]
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Reis DA, Silva CC, Pontes AB, Zaupa MC, Gomes VCA, Costa DF, Mendonça LT, Mendonça RT, Gonçalves AFC, Silva AMPS. A 020 Morbidity and Mortality Profile of Transitory Ischemic Stroke in Brazil, from January 2008 to January 2009. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71683-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Giannetti BF, Bonilla SH, Silva CC, Almeida CMVB. The reliability of experts' opinions in constructing a composite environmental index: the case of ESI 2005. J Environ Manage 2009; 90:2448-2459. [PMID: 19285781 DOI: 10.1016/j.jenvman.2008.12.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Revised: 11/28/2008] [Accepted: 12/29/2008] [Indexed: 05/27/2023]
Abstract
The complexity of the environment demands a well-constructed composite environmental index (CEI) to provide a useful tool to draw attention to environmental conditions and trends for policy purposes. Among the common difficulties in constructing a proper CEI are uncertainties due to the selection of the most representative underlying variables or indicators. A degree of uncertainty accompanies experts' judgments, and to deal with vague, subjective or inconsistent information, logic other than classic is required. This study analyzes a procedure that uses different experts' opinions in constructing a CEI, with the use of paraconsistent annotated logic. For this, a sensitivity analysis of the Environmental Sustainability Index (ESI 2005) was used as an example to assess the reliability of experts' opinions. The uncertainty due to the disagreement in experts' opinions clearly indicates that the forms we presently use to measure and monitor the actual environment are insufficient, that is, there is a lack of a "science of sustainability".
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Affiliation(s)
- B F Giannetti
- Laboratório de Físico Química Teórica e Aplicada, Laboratório de Produção e Meio Ambiente, Programa de Pós-Graduação em Engenharia de Produção, Universidade Paulista, São Paulo, Brazil.
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37
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Silva CC, Filho FP, Sombra ASB, Rosa ILV, Leite ER, Longo E, Varela JA. Study of structural and photoluminescent properties of Ca8Eu2(PO4)6O2. J Fluoresc 2007; 18:253-9. [PMID: 18049883 DOI: 10.1007/s10895-007-0242-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2006] [Accepted: 08/14/2007] [Indexed: 11/29/2022]
Abstract
In this work it is presented for the first time the nanostructured hydroxyapatites doped with 0.5, 1.0 and 2.0 wt% of Eu(3+) prepared at room temperature by the mechanical alloying technique. X-ray diffraction powder (XRD), infrared (IR) and Raman scattering spectroscopy, scanning electron microscopy (SEM), microhardness measurements as well as luminescent data of Eu(3+) were used to investigate the structural and optical properties of these nanomaterials. The electrical and dielectrical analyses were used with the intention of having a better comprehension about the electromagnetic fields in pure and doped hydroxyapatites.
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Affiliation(s)
- C C Silva
- Metallurgical and Materials Engineering Department, Federal University of Ceará Campus do Pici, 714 Block, Fortaleza, Ceará, Brazil.
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Góes JC, Figueiró SD, Oliveira AM, Macedo AAM, Silva CC, Ricardo NMPS, Sombra ASB. Apatite coating on anionic and native collagen films by an alternate soaking process. Acta Biomater 2007; 3:773-8. [PMID: 17468060 DOI: 10.1016/j.actbio.2007.02.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2006] [Revised: 02/01/2007] [Accepted: 02/14/2007] [Indexed: 11/25/2022]
Abstract
The present study focuses on apatite coating on collagen films, with various different densities of carboxyl groups, using an alternate soaking process. Anionic collagen (AC), which has different densities of carboxylic groups compared to native collagen (NC), was obtained by hydrolysis of carboxyamides of asparagine and glutamine residues. From X-ray diffraction analysis, apatite was found to be coated on AC and NC films. Peaks ascribed to apatite were observed at 26 degrees and 32 degrees in the diffraction patterns of hydroxyapatite crystals. The amount of apatite coated on both AC and NC collagen films continued to increase up to 100 reaction cycles. However, there is a significant difference in apatite coating between the two films. The amount of apatite formed on the surface of AC film increased 1.24 times faster than on NC film. The scanning electron photomicrograph images of the mineralized NC and the AC film coatings formed after 100cycles show that regular porous apatite coating had formed within the collagen fibrils. These results suggest that the higher content of carboxyl groups in AC plays an effective role in the heterogeneous nucleation of apatite in the body environment.
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Affiliation(s)
- J C Góes
- Laboratório de Telecomunicações e Ciência dos Materiais (LOCEM), Departamento de Física, Universidade Federal do Ceará, Caixa Postal 6030, CEP 60455-760, Fortaleza, Ceará, Brazil.
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Abstract
Ovaries were collected over a period of two years from heifers slaughtered at under 30 months of age and used to harvest 1757 oocytes. After in vitro maturation, fertilisation and culture, the proportions of oocytes and cleaved embryos that developed to blastocysts were significantly higher (P<0.01) in the autumn, from September to November, than in the spring, from March to May. In contrast, embryo development, as assessed by oocytes that developed to eight or more cells and blastocysts, was lowest (P<0.01) in the spring. These results were consistent during the two-year study, indicating a seasonal fluctuation in oocyte competence.
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Affiliation(s)
- C C Silva
- School of Animal and Microbial Sciences, University of Reading, Whiteknights, Reading RG6 6AJ
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40
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Abstract
Extensive variation in the size of the short (heterochromatic) arm of chromosome 14 was found in the wasp Trypoxylon (Trypargilum) albitarse. Ten different variants were differentiated by size and C-banding pattern. Fluorescent in-situ hybridization (FISH) revealed that ribosomal DNA in this species is clustered in the darkly C-banded parts of the heterochromatic short arm of chromosome 14. On this basis, we got an indirect estimate of the amount of rDNA from the area of these dark C-bands. The significant absence in males of the three chromosome variants with lower amounts of rDNA indicates that these three variants are lethal in this sex, and suggests the existence of a threshold marking the minimum amount of rDNA which is tolerable in haploidy. This implies about 4% genetic load in the population caused by variation in rDNA amount.
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Affiliation(s)
- S M S R Araújo
- Departamento de Biologia Celular, Universidade Estadual de Campinas , 13083 Campinas, SP, Brazil
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41
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Silva CC, Groome NP, Knight PG. Immunohistochemical localization of inhibin/activin alpha, betaA and betaB subunits and follistatin in bovine oocytes during in vitro maturation and fertilization. Reproduction 2003; 125:33-42. [PMID: 12622694] [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] [Indexed: 03/01/2023]
Abstract
The aim of this study was to evaluate the distribution of inhibin/activin alpha, beta(A) and beta(B) subunits and follistatin in immature oocytes and in matured oocytes before and after IVF. Denuded oocytes were submitted to a whole-mount immunofluorescence procedure. Specimens were imaged and fluorescent intensities quantified by scanning laser confocal microscopy. Immunoreactivity for inhibin alpha subunit (both alpha(C) and pro-alpha regions), abundant in the ooplasm of immature oocytes, decreased after maturation (a 68% and 88% decrease, respectively; P < 0.001), but increased after IVF by 2- and 5.7-fold, respectively (P < 0.01). Intense staining for beta(A) was detected in immature oocytes (predominantly in the outer ooplasm and zona pellucida) but after maturation and fertilization it was localized mainly in the zona pellucida, perivitelline space and oolemma. Immunoreactivity for beta(A) in the ooplasm decreased by 58% after maturation (P < 0.001) but increased again by 75% after fertilization (P < 0.01). Immunoreactivity for beta(B) was localized mainly in the zona pellucida and did not change after maturation. However, immunoreactivity for beta(B) was not detected in the zona pellucida after fertilization, but remained unchanged in unfertilized oocytes. Immunoreactivity for follistatin was detected in the ooplasm and zona pellucida of immature oocytes but decreased progressively in the ooplasm after maturation (a 63% decrease; P < 0.001) and did not change after IVF. Examination of partially denuded cumulus-oocyte complexes confirmed abundant expression of alpha(C), pro-alpha, beta(A) and follistatin immunoreactivity in cumulus cells, whereas beta(B) subunit staining was weak or absent in cumulus cells, but intense in the zona pellucida. In conclusion, the present study shows that qualitative and quantitative changes in the distribution of inhibin/activin subunits and follistatin accompany oocyte maturation and fertilization. The possibility, indicated by these observations, that activin A and activin B may play distinct roles in bovine oocyte maturation and fertilization warrants further study.
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Affiliation(s)
- C C Silva
- Departamento de Ciências Agrárias, Universidade dos Açores, 9700 Angra do Heroísmo, Portugal.
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Silva CC, Groome NP, Knight PG. Immunohistochemical localization of inhibin/activin alpha, betaA and betaB subunits and follistatin in bovine oocytes during in vitro maturation and fertilization. Reproduction 2003. [DOI: 10.1530/rep.0.1250033] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The aim of this study was to evaluate the distribution of inhibin/activin alpha, beta(A) and beta(B) subunits and follistatin in immature oocytes and in matured oocytes before and after IVF. Denuded oocytes were submitted to a whole-mount immunofluorescence procedure. Specimens were imaged and fluorescent intensities quantified by scanning laser confocal microscopy. Immunoreactivity for inhibin alpha subunit (both alpha(C) and pro-alpha regions), abundant in the ooplasm of immature oocytes, decreased after maturation (a 68% and 88% decrease, respectively; P < 0.001), but increased after IVF by 2- and 5.7-fold, respectively (P < 0.01). Intense staining for beta(A) was detected in immature oocytes (predominantly in the outer ooplasm and zona pellucida) but after maturation and fertilization it was localized mainly in the zona pellucida, perivitelline space and oolemma. Immunoreactivity for beta(A) in the ooplasm decreased by 58% after maturation (P < 0.001) but increased again by 75% after fertilization (P < 0.01). Immunoreactivity for beta(B) was localized mainly in the zona pellucida and did not change after maturation. However, immunoreactivity for beta(B) was not detected in the zona pellucida after fertilization, but remained unchanged in unfertilized oocytes. Immunoreactivity for follistatin was detected in the ooplasm and zona pellucida of immature oocytes but decreased progressively in the ooplasm after maturation (a 63% decrease; P < 0.001) and did not change after IVF. Examination of partially denuded cumulus-oocyte complexes confirmed abundant expression of alpha(C), pro-alpha, beta(A) and follistatin immunoreactivity in cumulus cells, whereas beta(B) subunit staining was weak or absent in cumulus cells, but intense in the zona pellucida. In conclusion, the present study shows that qualitative and quantitative changes in the distribution of inhibin/activin subunits and follistatin accompany oocyte maturation and fertilization. The possibility, indicated by these observations, that activin A and activin B may play distinct roles in bovine oocyte maturation and fertilization warrants further study.
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Abstract
BACKGROUND Enteral alimentation by feeding tube is a common problem and an efficient method of providing nutritional support to hospitalized patients with insufficient oral intake, but adequate gastrointestinal function. The use of metoclopramide, a prokinetic agent, has been recommended to achieve transpyloric placement, but its efficacy is controversial. OBJECTIVES To determine the effect of intravenous metoclopramide on transpyloric passage of the naso-enteral tube. SEARCH STRATEGY Relevant RCTs were identified by electronic search through MEDLINE, EMBASE, LILACS and the Cochrane Controlled Trials Register databases. TYPES OF PARTICIPANTS Adults needing enteral nutrition. Types of intervention: Intravenous or intramuscular metoclopramide compared to placebo or no intervention. Types of studies: Randomised controlled trials. Types of outcome measures: The success of migration of transpyloric intubation. DATA COLLECTION AND ANALYSIS The reviewers evaluated the allocation concealment, which was classified as adequate, uncertain or inadequate. Two reviewers extracted the data independently. All analyses were performed according to the intention-to-treat method. MAIN RESULTS Four studies were included and analysed. There was no statistically significant difference between intravenous or intramuscular metoclopramide administered to promote the tube migration (OR 0.65, 95% CI 0.33 to 1.28). Intravenous metoclopramide 10 mg (OR 0.68, 95% CI 0.37 to 1.23) and 20 mg (OR 0.27, 95% CI 0.01 to 10.84) were equally ineffective in facilitating transpyloric intubation. REVIEWER'S CONCLUSIONS Four studies were included and analysed. There was no statistically significant difference between intravenous or intramuscular metoclopramide administered to promote the tube migration (OR 0.65, 95% CI 0.33 to 1.28). Intravenous metoclopramide 10 mg (OR 0.68, 95% CI 0.37 to 1.23) and 20 mg (OR 0.27, 95% CI 0.01 to 10.84) were equally ineffective in facilitating transpyloric intubation.
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Affiliation(s)
- C C Silva
- Enfermagem, Escola Sophia Marchetti, Av. Celso Garcia 5885,ap 71 bl.1 Tatuapé., São Paulo, São Paulo, Brazil, 03063000.
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Silva CC, Giongo V, Simpson AJ, Camargos ER, Silva JL, Koury MC. Effects of hydrostatic pressure on the Leptospira interrogans: high immunogenicity of the pressure-inactivated serovar hardjo. Vaccine 2001; 19:1511-4. [PMID: 11163675 DOI: 10.1016/s0264-410x(00)00361-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The Hardjoprajitno strain of Leptospira interrogans serovar hardjo was subjected to different hydrostatic pressures. Complete inactivation occurred when the leptospires were treated with 2 kbar for 60 min. Electron microscopy showed dislocation of the outer membrane, partial loss of the helical shape and extrusion of the axial filament from the cytoplasmic cylinder of the pressurized leptospires. When the pressure-treated leptospires were inoculated into rabbits they were highly immunogenic. The sera of these animals presented a titer of 2048 in the microscopic serum agglutination reaction. Fluorescence measurements indicated that the action of pressure on the leptospires might have resulted from perturbation on membrane protein components, permitting the binding of the fluorescent probe bis (8-anilinonaphthalene-1-sulfonate) (Bis-ANS). This is the first report of the use of hydrostatic pressure to inactivate pathogenic bacteria with the potential to lead to a vaccine.
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Affiliation(s)
- C C Silva
- Departamento de Microbiologia do Instituto de Ciências Biológicas da Universidade Federal de Minas Gerais, 6627 Caixa Postal 486, Av Antonio Carlos, 31270 901, Minais Gerais, Belo Horizonte, Brazil
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Rivera IR, Gomes L, Moisés VA, Silva CC, Andrade JL, Carvalho AC. Multiple arterial anomalies in the newborn infant. Echocardiographic and angiographic diagnosis. Arq Bras Cardiol 2000; 75:137-44. [PMID: 10983030 DOI: 10.1590/s0066-782x2000000800006] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [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: 11/22/2022] Open
Abstract
Multiple arterial anomalies characterized by tortuosity and rolling of the pulmonary arteries and aorta were diagnosed on echocardiography in an asymptomatic newborn infant with a phenotype suggesting Ehlers-Danlos syndrome. These changes were later confirmed on angiography, which also showed peripheral vascular abnormalities. The electrocardiogram showed a probable hemiblock of the left anterosuperior branch, and the chest x-ray showed an excavated pulmonary trunk with normal pulmonary flow.
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Affiliation(s)
- I R Rivera
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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Silva CC, Knight PG. Effects of androgens, progesterone and their antagonists on the developmental competence of in vitro matured bovine oocytes. J Reprod Fertil 2000; 119:261-9. [PMID: 10864838] [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: 02/16/2023]
Abstract
The aim of the present study was to determine whether androgens and progesterone influence the in vitro maturation of bovine oocytes as assessed by cleavage rates and competence to form blastocysts after in vitro fertilization. Bovine cumulus-oocyte complexes were cultured (n = 20 per drop) for 22-24 h at 38.5 degrees C in TCM-199 medium supplemented with 10% oestrous cow serum, eCG (2.5 iu ml(-1)) and a range of treatments that included aromatizable (testosterone; 100 nmol l(-1)) and non-aromatizable (dihydrotestosterone; 100 nmol l(-1)) androgens, an androgen antagonist (flutamide; 36 micromol l(-1)), progesterone (300 nmol l(-1)) and a progesterone antagonist (mifeprisone, RU486; 100 nmol l(-1)). Production of inhibin A, total alpha-subunit, activin A and follistatin by each group of cumulus-oocyte complexes was also measured, since inhibin-related peptides have been implicated as modulators of oocyte maturation and their production may be influenced by steroids and anti-steroids. Both testosterone and dihydrotestosterone increased oocyte cleavage rate (25%; P < 0.01) and dihydrotestosterone also increased (24%; P < 0.05) the proportion of oocytes that reached the >/= eight-cell stage. However, neither androgen affected blastocyst yield, or the proportion of blastocysts that hatched. The stimulatory effect of dihydrotestosterone on cleavage rate was reduced by flutamide but the anti-androgen had no effect when tested alone. Treatment with testosterone, but not dihydrotestosterone, decreased (P < 0.05) endogenous follistatin and increased (P < 0.05) the activin A:follistatin ratio in maturation medium. Concentrations of inhibin A, total alpha-subunit and activin A were not affected significantly by androgen or flutamide. Addition of progesterone or the anti-progestin mifepristone to cumulus-oocyte complexes had no effect on cleavage rate. However, progesterone reduced by approximately 40% (P < 0.05) the proportions of both total oocytes and cleaved oocytes that formed blastocysts. This effect was partially reversed by mifepristone. Neither progesterone nor mifepristone affected inhibin A, activin A or follistatin production. However, total alpha-subunit concentration was significantly greater in the progesterone-treated group than in the controls (50%; P < 0.05), indicating that the negative effect of progesterone on blastocyst yield may be mediated by increased inhibin alpha-subunit expression by cumulus cells.
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Affiliation(s)
- C C Silva
- School of Animal and Microbial Sciences, The University of Reading, Whiteknights, Reading RG6 6AJ, UK
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Rivera IR, Moises VA, Silva CC, Andrade JL, Carvalho AC. Association of pulmonary atresia with intact ventricular septum and aortic valve stenosis. Prenatal diagnosis. Arq Bras Cardiol 2000; 74:447-52. [PMID: 10951836 DOI: 10.1590/s0066-782x2000000500006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 11/22/2022] Open
Abstract
A rare association of pulmonary atresia with an intact septum was diagnosed through echocardiography in a fetus 32 weeks of gestational age. The diagnosis was later confirmed by echocardiography of the newborn infant and further on autopsy. The aortic valve was bicuspid with a pressure gradient of 81 mmHg, and the right ventricle was hypoplastic, as were the pulmonary trunk and arteries, and the blood flow was totally dependent on the ductus arteriosus.
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Affiliation(s)
- I R Rivera
- Universidade Federal de São Paulo-Escola Paulista de Medicine, Brazil
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Abstract
This is an exploratory qualitative study carried out in a hospital-school in Porto Alegre. Its purpose is to identify children's perception concerning the care received during hospitalization. Eight children, from six to twelve years of age participated in this investigation, after each person responsible for the child signed a consent form. Data was collected in the in-patient unit through in-depth interviews. Five different themes emerged from the analysis of the interviews: identification of the caretakers; children's perception of care; expression of inner feelings, description of the care received and the caretakers and perception of time. The study shows that hospitalization generates stress for the child and its family. Health care which is more appropriate and efficient minimizes the impact of hospitalization and should include the following aspects: family's and child's commitment to self-care, maintenance of family bonds and of regular activities, previous explanation of procedures to be performed respect for the child's opinions and suggestions, nursing team's availability and attention to the child's needs.
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Affiliation(s)
- C C Silva
- Universidade Federal do Rio Grande do Sul
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Rivera IR, Moises VA, Tebexreni AS, Silva CC, Andrade JL, Campos Filho O, Carvalho AC. Right coronary artery fistula with congestive heart failure in the neonate. Doppler echocardiographic diagnosis and closure with detachable balloon. Arq Bras Cardiol 2000; 74:243-52. [PMID: 10951827 DOI: 10.1590/s0066-782x2000000300006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/22/2022] Open
Abstract
We report here a case of coronary artery fistula in a neonate with clinical signs of heart failure. The electrocardiogram showed signs of left ventricular hypertrophy and diffuse alterations in ventricular repolarization. Chest X-ray showed an enlargement of the cardiac silhouette with an increase in pulmonary flow. After echocardiographic diagnosis and angiographic confirmation, closure of the fistulous trajectory was performed with a detachable balloon with an early and late successful outcome.
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Affiliation(s)
- I R Rivera
- Universidade Federal de São Paulo-Escola Paulista de Medicina, Brazil
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Silva CC, Almeida VA, Haibara AS, Johnson RA, Colombari E. Role of carbon monoxide in L-glutamate-induced cardiovascular responses in nucleus tractus solitarius of conscious rats. Brain Res 1999; 824:147-52. [PMID: 10196444 DOI: 10.1016/s0006-8993(99)01157-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Heme oxygenase degrades heme to form carbon monoxide. It has been reported that heme oxygenase-derived carbon monoxide may interact with L-glutamate (L-Glu) receptors in the nucleus tractus solitarius (NTS). Integrative studies suggest that heme oxygenase inhibitors raise blood pressure, in part, by inhibiting carbon monoxide formation in the NTS. The currents studies were designed to determine if heme oxygenase inhibitors affect the cardiovascular actions of L-Glu in the NTS. Accordingly, MAP and HR responses to unilateral microinjections of L-Glu (5 nmol/100 nl) into the NTS were measured before and after ipsilateral microinjections of zinc deuteroporphyrin 2,4-bis glycol (ZnDPBG, 4.5 nmol/100 nl) or chromium mesoporphyrin (CrMP, 1.5 nmol/100 nl) in awake rats chronically instrumented with NTS guide cannulaes and arterial catheters. With respect to non-treatment (+36+/-5 mmHg, -107 bpm, n=10), ZnDPBG pre-treatment attenuated the pressor and bradycardic responses to L-Glu (+7+/-3 mmHg, -10+/-6 bpm, P<0.05). CrMP similarly attenuated cardiovascular responses to L-Glu (+47+/-3 mmHg, -68+/-8 bpm vs. +20+/-5 mmHg, -40+/-9 bpm; before vs. after, n=10, P<0.05). Matched series yielded no vehicle- or time-related effects. Our findings suggest that a heme oxygenase product, such as carbon monoxide, may affect NTS glutamatergic neurotransmission to participate in cardiovascular control.
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Affiliation(s)
- C C Silva
- Department of Physiology, Universidade Federal de São Paulo, Escola Paulista de Medicina, Rua Botucatu 862, São Paulo, SP 04023-060, Brazil
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