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Leandro LF, Moraes TS, Damasceno JL, Veneziani RCS, Ambrosio SR, Bastos JK, Santiago MB, Pedroso RS, Martins CHG. Antibacterial, antibiofilm, and antivirulence potential of the main diterpenes from Copaifera spp. oleoresins against multidrug-resistant bacteria. Naunyn Schmiedebergs Arch Pharmacol 2024:10.1007/s00210-024-03077-9. [PMID: 38619589 DOI: 10.1007/s00210-024-03077-9] [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: 12/13/2023] [Accepted: 03/30/2024] [Indexed: 04/16/2024]
Abstract
To evaluate the antibacterial, antibiofilm and antivirulence potential of the main diterpenes from Copaifera spp. oleoresins against multidrug-resistant (MDR) bacteria. Antimicrobial assays included determination of the Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC), Minimum Inhibitory Concentration of Biofilm (MICB50), as well as synergistic and antivirulence assays for eight diterpenes against MDR. The tests revealed that two diterpenes (named 1 and 5) showed the best results, with MIC and MBC between 12.5 and 50 μg/mL against most MDR bacteria. These diterpenes exhibited promising MICB50 in concentration between 3.12-25 μg/mL but showed no synergistic antimicrobial activity. In the assessment of antivirulence activity, diterpenes 1 and 5 inhibited only one of the virulence factors evaluated (Dnase) produced by some strains of S. aureus at subinhibitory concentration (6.25 μg/mL). Results obtained indicated that diterpenes isolated from Copaifera oleoresin plays an important part in the search of new antibacterial and antibiofilm agents that can act against MDR bacteria.
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Affiliation(s)
- L F Leandro
- Laboratory of Antimicrobial Testing, Institute of Biomedical Sciences, Federal University of Uberlândia - UFU, Uberlândia, Minas Gerais, 38405-320, Brazil
| | - T S Moraes
- Nucleus of Research in Sciences and Technology, University of Franca - UNIFRAN, Franca, São Paulo, Brazil
| | - J L Damasceno
- Laboratory of Antimicrobial Testing, Institute of Biomedical Sciences, Federal University of Uberlândia - UFU, Uberlândia, Minas Gerais, 38405-320, Brazil
| | - R C S Veneziani
- Nucleus of Research in Sciences and Technology, University of Franca - UNIFRAN, Franca, São Paulo, Brazil
| | - S R Ambrosio
- Nucleus of Research in Sciences and Technology, University of Franca - UNIFRAN, Franca, São Paulo, Brazil
| | - J K Bastos
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto, São Paulo, Brazil
| | - M B Santiago
- Laboratory of Antimicrobial Testing, Institute of Biomedical Sciences, Federal University of Uberlândia - UFU, Uberlândia, Minas Gerais, 38405-320, Brazil
| | - R S Pedroso
- Technical School of Health, Federal University of Uberlândia - UFU, Uberlândia, Minas Gerais, Brazil
| | - C H G Martins
- Laboratory of Antimicrobial Testing, Institute of Biomedical Sciences, Federal University of Uberlândia - UFU, Uberlândia, Minas Gerais, 38405-320, Brazil.
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De Santana AR, Castro de Oliveira Figueirôa MDL, Souza Pedreira AL, Behrens Pinto GL, Santiago MB. Adult ocular adnexal xanthogranulomatous disease associated with immunoglobulin G4-related disease: an unusual association. Reumatismo 2024; 76. [PMID: 38523581 DOI: 10.4081/reumatismo.2024.1641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 12/05/2023] [Indexed: 03/26/2024] Open
Abstract
Adult-onset xanthogranuloma (AOX) and immunoglobulin G4-related disease (IgG4-RD) are uncommon fibrosing conditions that may exhibit localized ocular manifestations and occasionally systemic symptoms. These conditions exhibit overlapping clinical and histological features, suggesting a potential correlation between them, although their exact relationship remains unclear. This paper presents the case of a black male patient exhibiting typical histological indications of both AOX and IgG4-RD. The patient responded positively to corticosteroid treatment.
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Affiliation(s)
| | | | | | - G L Behrens Pinto
- Professor Edgard Santos University Hospital Complex, Federal University of Bahia.
| | - M B Santiago
- Bahiana School of Medicine and Public Health, Salvador; Professor Edgard Santos University Hospital Complex, Federal University of Bahia; Specialized Rheumatology Services, Bahia.
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Fernandes CC, Rezende JL, Silva EAJ, Silva FG, Stenico L, Crotti AEM, Esperandim VR, Santiago MB, Martins CHG, Miranda MLD. Chemical composition and biological activities of essential oil from flowers of Psidium guajava (Myrtaceae). BRAZ J BIOL 2021; 81:728-736. [DOI: 10.1590/1519-6984.230533] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/30/2020] [Indexed: 11/22/2022] Open
Abstract
Abstract Xylella fastidiosa is a plant-pathogenic bacterium that lives inside host xylem vessels, where it forms biofilm which is believed to be responsible for disrupting the passage of water and nutrients. Pectobacterium carotovorum is a Gram-negative plant-specific bacterium that causes not only soft rot in various plant hosts, but also blackleg in potato by plant cell wall degradation. Chagas disease, which is caused by Trypanosoma cruzi, has been commonly treated with nifurtimox and benzonidazole, two drugs that cause several side effects. As a result, the use of natural products for treating bacterial and neglected diseases has increased in recent years and plants have become a promising alternative to developing new medicines. Therefore, this study aimed to determine, for the first time, the chemical composition of essential oil from Psidium guajava flowers (PG-EO) and to evaluate its in vitro anti-Xylella fastidiosa, anti-Pectobacterium carotovorum, anti-Trypanosoma cruzi and cytotoxic activities. PG-EO was obtained by hydrodistillation in a Clevenger apparatus while its chemical composition was determined by gas chromatography-flame ionization detection (GC-FID) and gas chromatography-mass spectrometry (GC-MS). Major compounds identified in PG-EO were α-cadinol (37.8%), β-caryophyllene (12.2%), nerolidol (9.1%), α-selinene (8.8%), β-selinene (7.4%) and caryophyllene oxide (7.2%). Results showed that the PG-EO had strong trypanocidal activity against the trypomastigote forms of Trypanosoma cruzi (IC50 = 14.6 μg/mL), promising antibacterial activity against X. fastidiosa (MIC = 12.5 μg/mL) and P. carotovorum (MIC = 62.5 μg/mL), and moderate cytotoxicity against LLCMK2 adherent epithelial cells in the concentration range (CC50 = 250.5 μg/mL). In short, the PG-EO can be considered a new source of bioactive compounds for the development of pesticides and trypanocide drugs.
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Barbosa LM, Santiago MB, Moretto VT, Athanazio D, Takahashi D, Reis EG, Lopes M, Lemaire D, Reis MG. Toll-like receptor 9 polymorphisms in brazilian patients with systemic lupus erythematosus: a pilot study. BRAZ J BIOL 2021; 83:e244123. [PMID: 34161457 DOI: 10.1590/1519-6984.244123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 01/15/2021] [Indexed: 11/22/2022] Open
Abstract
Toll-like receptor 9 (TLR9) is an important component of the innate immune system and have been associated with several autoimmune diseases, such as Systemic Lupus Erythematosus (SLE). The aim of this study was to investigate polymorphisms in TLR9 gene in a Brazilian SLE patients group and their association with clinical manifestation, particularly Jaccoud's arthropathy (JA). We analyzed DNA samples from 204 SLE patients, having a subgroup of them presenting JA (n=24). A control group (n=133) from the same city was also included. TLR9 single nucleotide polymorphisms (SNPs) (-1237 C>T and +2848 G>A) were identified by sequencing analysis. The TLR9 gene genotype frequency was similar both in SLE patients and the control group. In the whole SLE population, an association between the homozygosis of allele C at position -1237 with psychosis and anemia (p < 0.01) was found. Likewise, the homozygosis of allele G at position +2848 was associated with a discoid rash (p < 0.05). There was no association between JA and TLR9 polymorphisms. These data show that TLR9 polymorphisms do not seem to be a predisposing factor for SLE in the Brazilian population, and that SNPs are not associated with JA.
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Affiliation(s)
- L M Barbosa
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil.,Escola Bahiana de Medicina e Saúde Pública - EBMSP, Salvador, BA, Brasil
| | - M B Santiago
- Escola Bahiana de Medicina e Saúde Pública - EBMSP, Salvador, BA, Brasil
| | - V T Moretto
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil
| | - D Athanazio
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil
| | - D Takahashi
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil
| | - E G Reis
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil
| | - M Lopes
- Universidade Federal da Bahia - UFBA, Faculdade de Medicina da Bahia, Salvador, BA, Brasil
| | - D Lemaire
- Universidade Federal da Bahia - UFBA, Faculdade de Medicina da Bahia, Salvador, BA, Brasil
| | - M G Reis
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil.,Universidade Federal da Bahia - UFBA, Faculdade de Medicina da Bahia, Salvador, BA, Brasil.,Yale School of Public Health, New Haven, CT, USA
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Ribeiro DS, Lins CF, Galvão V, Santos WGD, Rosa G, Machicado V, Pedreira AL, da Fonseca EP, Souza APMD, Baleeiro C, Ferreira LG, Oliveira ISD, Gama da Silva JPC, Atta AM, Santiago MB. Association of CXCL13 serum level and ultrasonographic findings of joints in patients with systemic lupus erythematosus and Jaccoud’s arthropathy. Lupus 2018; 27:939-946. [DOI: 10.1177/0961203317753557] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- D Sá Ribeiro
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
| | - C F Lins
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
| | - V Galvão
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
| | | | - G Rosa
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
| | - V Machicado
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
| | - A L Pedreira
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
| | - E P da Fonseca
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
| | | | - C Baleeiro
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
| | - L G Ferreira
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
| | - I Silva de Oliveira
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - J P Cotrim Gama da Silva
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - A M Atta
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - M B Santiago
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil
- Serviços Especializados em Reumatologia da Bahia, Salvador, Bahia, Brazil
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Abstract
Antiphospholipid syndrome (APS) is a clinical entity characterized by arterial and venous thrombosis, adverse obstetric outcome and the presence of antibodies against phospholipids in serum or plasma. The objective of the present study is to describe a rare case of APS that occurred in a neonate born from a patient previously diagnosed as primary APS. A male, preterm born twin infant, whose mother had been diagnosed as primary APS, developed thrombocytopenia, livedo reticularis, pericardial effusion and thrombosis of the left subclavian and external jugular veins concomitantly with severe respiratory tract infection soon after his delivery, that culminated with his death two months after the birth, in spite of the large spectrum antibiotic therapy and all supportive measures. Laboratory findings included high titers of IgM anticardiolipin antibodies and moderate titers of IgG isotype and negative antinuclear antibody, configuring a case of neonatal APS. Neonatal APS is a rare clinical condition, with only a few cases described in the literature. Its occurrence may depend on the passage of antibodies through the placenta or, as it seems to have occurred in the present case, by the production of de novo antibodies by the fetus. The present case illustrates the necessity of a higher surveillance of the neonates born from mothers with primary APS or systemic lupus erythematosus (SLE) for the eventual development of such complication.
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Affiliation(s)
- A M Soares Rolim
- Clínica Pediátrica do Itaigara, Hospital da Criança-Obras Sociais Irmã Dulce and Universidade Federal da Bahia, Brazil
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Lima I, Oliveira RC, Cabral MS, Atta A, Marchi S, Reis E, Reis MG, Barbosa L, Santiago MB. Anti-PR3 and anti-MPO antibodies are not present in sera of patients with pulmonary tuberculosis. Rheumatol Int 2014; 34:1231-4. [DOI: 10.1007/s00296-014-3009-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Accepted: 03/28/2014] [Indexed: 10/25/2022]
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8
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Lima I, Oliveira RC, Atta A, Marchi S, Barbosa L, Reis E, Reis MG, Santiago MB. Antibodies to citrullinated peptides in tuberculosis. Clin Rheumatol 2013; 32:685-7. [DOI: 10.1007/s10067-013-2173-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 12/13/2012] [Accepted: 01/11/2013] [Indexed: 12/01/2022]
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Skare TL, Leite N, Bortoluzzo AB, Gonçalves CR, da Silva JAB, Ximenes AC, Bértolo MB, Ribeiro SLE, Keiserman M, Menin R, Carneiro S, Azevedo VF, Vieira WP, Albuquerque EDN, Bianchi WA, Bonfiglioli R, Campanholo C, Carvalho HMS, Costa IP, Duarte AP, Gavi MBO, Kohem CL, Lima SAL, Meirelles ES, Pereira IA, Pinheiro MM, Polito E, Resende GG, Rocha FAC, Santiago MB, Sauma MDFLC, Sampaio-Barros PD. Effect of age at disease onset in the clinical profile of spondyloarthritis: a study of 1424 Brazilian patients. Clin Exp Rheumatol 2012; 30:351-357. [PMID: 22510473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 10/25/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVES To analyse demographic and clinical variables in patients with disease onset before and after 40, 45 and 50 years in a large series of Brazilian SpA patients. METHODS A common protocol of investigation was prospectively applied to 1424 SpA patients in 29 centres distributed through the main geographical regions in Brazil. The mean age at disease onset was 28.56 ± 12.34 years, with 259 patients (18.2%) referring disease onset after 40 years, 151 (10.6%) after 45 years and 81 (5.8%) after 50 years. Clinical and demographic variables and disease indices (BASDAI, BASFI, BASRI, MASES, ASQoL) were investigated. Ankylosing spondylitis was the most frequent disease (66.3%), followed by psoriatic arthritis (18%), undifferentiated SpA (6.7%), reactive arthritis (5.5%), and enteropathic arthritis (3.5%). RESULTS Comparing the groups according to age of disease onset, those patients with later onset presented statistical association with female gender, peripheral arthritis, dactylitis, nail involvement and psoriasis, as well as negative statistical association with inflammatory low back pain, alternating buttock pain, radiographic sacroiliitis, hip involvement, positive familial history, HLA-B27 and uveitis. BASDAI, BASFI and quality of life, as well as physicians and patient's global assessment, were similar in all the groups. Radiographic indices showed worse results in the younger age groups. CONCLUSIONS There are two different clinical patterns in SpA defined by age at disease onset: one with predominance of axial symptoms in the group with disease onset ≤ 40 years and another favouring the peripheral manifestations in those with later disease onset.
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Affiliation(s)
- T L Skare
- Hospital Evangélico de Curitiba, Brazil.
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Abstract
Introduction: Females with systemic lupus erythematosus (SLE) have higher prevalence of human papillomavirus (HPV) infection, which can lead to the development of warts. Herein we report the first case of giant disseminated condylomatosis (GDC) in a SLE female on mycophenolate mofetil (MMF). Case report: The patient, a 33-year-old, Black female, was diagnosed with SLE during her first pregnancy in 2003 based on the features of arthritis, skin rash, seizures, nephritis and presence of antinuclear antibodies. Her pregnancy resulted in preterm delivery of a stillborn fetus at 28 weeks. Since that time she has been treated with steroids and different regimens of immunosuppressive drugs such as cyclophosphamide, azathioprine and lately MMF. In the last few years she presented GDC involving the genital area in addition to skin on the lower abdomen. Topical therapy with trichloroacetic acid, imiquimod and podophyllin was only partially effective. Different types of HPV were identified in the lesions, being HPV-11 in abdomen, HPV 6, 11, 42 in vulva, HPV-6, 11 in vagina and HPV-6, 11 in endocervix. Conclusions: GDC may be a complication of SLE, secondary to the disease itself, its treatment or other factors not yet identified.
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Affiliation(s)
- L CostaPinto
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
- Departamento de Obstetrícia e Ginecologia, Universidade Federal da Bahia, Brazil
| | - MFR Grassi
- Centro de Pesquisas Gonçalo Moniz/Fundação Oswaldo Cruz, Salvador, Brazil
| | | | - ACV Travessa
- Departamento de Obstetrícia e Ginecologia, Universidade Federal da Bahia, Brazil
| | - VNO Olavarria
- Centro de Pesquisas Gonçalo Moniz/Fundação Oswaldo Cruz, Salvador, Brazil
| | - MB Santiago
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
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Alves EM, Macieira JC, Borba E, Chiuchetta FA, Santiago MB. Spontaneous tendon rupture in systemic lupus erythematosus: association with Jaccoud’s arthropathy. Lupus 2010; 19:247-254. [DOI: 10.1177/0961203309351729] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Tendon rupture has rarely been described in patients with systemic lupus erythematosus. From observation of three cases of Jaccoud’s arthropathy with tendon rupture, and considering that this arthropathy is more related to an inflammatory process of the tendon sheath than to synovitis per se, the intention of this study was to review the cases of tendon rupture in patients with systemic lupus erythematosus, in the hope of determining the frequency of Jaccoud’s arthropathy associated with this complication. Systematic review using MEDLINE, Scielo and LILACS databases (1966 to 2009) and the following keywords: systemic lupus erythematosus, tendon rupture, Jaccoud’s arthropathy. Secondary references were additionally obtained. Additionally, three Brazilian systemic lupus erythematosus patients who developed tendon rupture are described. Only 40 articles obtained fulfilled the previously established criteria. They were all case reports; the number of cases reported was 52 which, together with the three cases presented herein add up to 55 cases. Forty-six patients were women aged between 19 and 71 years, with a mean age of 40.1 ± 12.4 years, and the average duration of the disease was 10 years. The most frequently observed rupture sites were the patellar and Achilles’ tendons. While almost all patients described were on various doses of corticosteroids, 16 patients concomitantly had Jaccoud’s arthropathy (29%). In conclusion, the association between Jaccoud’s arthropathy and tendon rupture in systemic lupus erythematosus has been underestimated. As almost one-third of the systemic lupus erythematosus patients with tendon rupture also have Jaccoud’s arthropathy, this arthropathy may be recognized as risk marker for tendon rupture. Lupus (2010) 19, 247—254.
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Affiliation(s)
- EM Alves
- Escola Bahiana de Medicina e Saúde Pública (EBMSP), Salvador, Brazil
| | - JC Macieira
- Universidade Federal de Sergipe, Aracaju, Brazil
| | - E. Borba
- Disciplina de Reumatologia, Universidade de São Paulo, São Paulo, Brazil
| | - FA Chiuchetta
- Universidade Federal do Paraná and Hospital da XV, Curitiba, Brazil
| | - MB Santiago
- Serviço de Reumatologia do Hospital Santa Izabel and EBMSP, Salvador, Brazil,
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Lima IVS, Galrão LA, Maia TSL, Santiago MB. Spinal cord compression by ectopic calcinosis in scleroderma. Clin Exp Rheumatol 2005; 23:704-6. [PMID: 16173252] [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: 05/04/2023]
Abstract
Systemic sclerosis (SS) is a chronic, multisystemic disease, characterized by inflammation associated with fibrosis. Calcinosis is one of the manifestations of this disorder, observed in 10 to 20% of cases. It is usually located on the extensor surface of the phalanges, peri-articular tissue and near the bone prominences. There are only a few cases reported of SS with vertebral column involvement and spinal cord compression by calcinosis causing serious neurological complications. We describe a fatal case of SS who showed tetraplegia secondary to ectopic calcinosis in the cervical medulla and present a review of the literature on the subject.
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Affiliation(s)
- I V S Lima
- Escola de Medicina e Saúde Pública da Bahia/Núcleo de Reumatologia da Bahia, Salvador, Bahia, Brazil
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13
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Sato EI, Bonfá ED, Costallat LTL, Silva NA, Brenol JCT, Santiago MB, Szajubok JCM, Rachid-Filho A, Barros RT, Vasconcelos M. Lúpus eritematoso sistêmico: tratamento do acometimento cutâneo/articular. Rev Bras Reumatol 2004. [DOI: 10.1590/s0482-50042004000600010] [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: 11/21/2022] Open
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14
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Sato EI, Bonfá ED, Costallat LTL, Silva NA, Brenol JCT, Santiago MB, Szajubok JCM, Rachid-Filho A, Barros RT, Vasconcelos M. Lúpus eritematoso sistêmico: tratamento do acometimento sistêmico. Rev Bras Reumatol 2004. [DOI: 10.1590/s0482-50042004000600011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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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15
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Abstract
A semi-quantitative ELISA for complement-fixing, IgG-containing immune complexes (IC) is described. The assay is based on the insolubilization of IC by polyethyleneglycol, their capture by solid-phase anti-C3 antibodies, reaction with peroxidase-labeled anti-IgG antibodies and incubation with a chromogenic peroxidase substrate. It was markedly improved by the use of a single-step procedure which simultaneously washed and precipitated the insolubilized immune complexes. Intra-assay and inter-assay coefficients of variation were lower than 8.6 and 14.7%, respectively. As expected, higher levels of circulating immune complexes, in relation to healthy individuals, were found in patients with American visceral leishmaniasis (AVL), systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA), with prevalences comparable to those described in the literature. The ELISA can be quickly assembled from reagents and plasticware widely available commercially, detects immune complexes fulfilling three different criteria and is more sensitive than a previously published method based on the same principles (detection limit for complement-sensitized aggregated IgG of 2 microg ml(-1) as compared with a detection limit above 16 microg ml(-1)).
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Affiliation(s)
- N M Soares
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Rua Waldemar Falcao 121, 40295-001, Salvador, Brazil.
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16
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Santiago MB, Chalhoub M, Pereira ST. Amyopathic dermatomyositis complicated by interstitial pulmonary disease and pneumomediastinum. J Rheumatol 1998; 25:2042-3. [PMID: 9779873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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17
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Raquel BA, Laura LB, Santiago MB. [Weight for height of Chilean school children according to age and puberal development]. Arch Latinoam Nutr 1995; 45:19-24. [PMID: 8729247] [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: 02/01/2023]
Abstract
In a sample of 6371 school age children, aged 9 to 15 years, representative of four Regions of Chile (II,V,IX, and XIII) weight for stature was evaluated, acocording to age and puberal stages of Tanner. The averages and medians of weight for stature between 130 at 170 cm for men and between 130 and 163cm for females are presented. Higher weight for height whith age and puberal stages was found in both sexes, but differences were not always significants. A very low correlation between weight, and chronologic age and low between weight and puberal status was observed. This was reflected for higher differences of weight in the successive puberal stages than in successive ages. We conclude that the puberal development rahter than chronologic age, must be use for a better nutritional evaluation of adolescents. Nevertheless, other parameters with better distribution in puberal poblation, must be considered.
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Affiliation(s)
- B A Raquel
- Unidad de Endocrinologia, Instituto de Nutricion y Tecnologia de los Alimentos, Universidad de Chile
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18
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Abstract
A haemolytic assay was used to test the complement fixation ability of 16 serum samples with high concentrations of anti-cardiolipin antibodies. Fourteen patients had clinical complications usually associated with these antibodies--namely, recurrent abortions, thrombosis, or thrombocytopenia. Complement fixation by anticardiolipin antibodies was shown in only four of these patients and was not directly related to the antibody concentration. Because anticardiolipin antibodies in most of these patients did not activate the complement pathway it is unlikely that the complement cascade has an important role in the clinical complications associated with these antibodies.
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Affiliation(s)
- M B Santiago
- Laboratory of Investigation in Rheumatology, University of São Paulo, School of Medicine, Brazil
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Costallat LT, de Oliveira RM, Santiago MB, Cossermelli W, Samara AM. Neuropsychiatric manifestations of systemic lupus erythematosus: the value of anticardiolipin, antigangliosides and antigalactocerebrosides antibodies. Clin Rheumatol 1990; 9:489-97. [PMID: 2088646 DOI: 10.1007/bf02030510] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In an attempt to find a serological marker for neuropsychiatric manifestations (NPM) of SLE, sera from 66 patients (classified in three groups, according to their NPM-defined, probable and without NPM) were analysed by ELISA for IgG and IgM anticardiolipin, antigangliosides and antigalactocerebrosides antibodies. A strong correlation was found between IgM antigangliosides and antigalactocerebrosides antibodies and NPM, but not with IgG class. IgM and IgG antibodies anticardiolipin were not correlated with NPM in this study. Both IgM antigangliosides and antigalactocerebrosides antibodies disappeared in seven patients with definite but clinically inactive NPM. The analysis of these autoantibodies showed an important role predictive for NPM in SLE; the negative test decreases the chance of the NPM.
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Affiliation(s)
- L T Costallat
- Department of Internal Medicine, State University of Campinas, São Paulo, Brazil
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20
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Santiago MB, Viana V, Bueno C, Yoshinari N, de Oliveira RM, Cossermelli W. Anticardiolipin antibodies and disease activity in systemic lupus erythematosus. Rev Hosp Clin Fac Med Sao Paulo 1990; 45:167-70. [PMID: 2135827] [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: 12/30/2022]
Abstract
We studied a group of 80 unselected patients with systemic lupus erythematosus (SLE). Twenty six (32.5%) of them were considered in clinical activity using criteria based on clinical features and laboratory abnormalities. Using an isotype specific enzyme linked immunosorbent assay (ELISA) for anticardiolipin antibodies we found IgG anticardiolipin in 28/80 (35%) and IgM anticardiolipin in 20/80 (25%) patients. Antibodies to native DNA by immunofluorescence were found in 11/80 (14%) patients, whereas antibodies to denatured DNA by ELISA were found in 51/80 (64%) patients. There was an association between disease activity and the presence of anticardiolipin and anti-DNA antibodies particularly of the IgG isotype. We also found an association between anticardiolipin and anti-DNA suggesting a cross reaction between these antibodies, but we are not able to exclude the possibility of a simple coincidental phenomenon due to polyclonal synthesis of immunoglobulin observed during periods of disease activity.
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Affiliation(s)
- M B Santiago
- Department of Rheumatology, University of São Paulo, School of Medicine, Brazil
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21
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Granja CDB, Santiago MB, Viana VS, Bueno C, Kumeda CA, de Oliveira RM, Cossermelli W. [Clinical and biochemical characterization of isoniazid-induced auto-antibodies]. Rev Paul Med 1990; 108:57-60. [PMID: 2259821] [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: 12/31/2022]
Abstract
Isoniazid (INH) is one among many drugs capable of inducing autoantibodies and, in some cases, a lupus-like syndrome (LE). A longitudinal study was performed in 24 tuberculosis patients treated with INH to detect antibodies (A-AH) to total histones and fractions. Antinuclear antibodies were observed in two patients after treatment. Higher frequency of IgM-AH was also observed. IgM-AH binding to all fractions were observed in those serum samples exhibiting stronger ELISA reactivity. Conversely, binding to only H1 occurred when lower IgM-AH activity was tested. Correlations with clinical expressions of LE were not observed in the present study.
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Abstract
IgG or IgM anticardiolipin antibodies were present in the sera of 67% of 33 patients with Hansen's disease, in 53% of 30 patients with tuberculosis and in 50% of 16 patients with endocarditis. Despite the high frequency of these antibodies, no patient had a history of thrombosis or abortion. Anti-denatured DNA antibodies were tested in patients with tuberculosis and patients with Hansen's disease. Only in the latter group did we observe a statistically significant association between anticardiolipin and anti-denatured DNA antibodies. Anticardiolipin binding activity, however, could not be inhibited by preincubation of sera with a variable concentration of denatured DNA. These data suggest that: a) Anticardiolipin antibodies in infectious diseases do not necessarily participate in the pathogenesis of thrombotic or obstetric complications; b) Anti-denatured DNA and anticardiolipin antibodies in the population studied do not have a cross-reaction.
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Affiliation(s)
- M B Santiago
- Department of Rheumatology, School of Medicine, University of São Paulo, Brazil
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de Oliveira RM, Bueno C, Viana VS, Yoshinari NH, Cossermelli W, Santiago MB. Association of anti-DNA and anticardiolipin antibodies in systemic lupus erythematosus. Rev Hosp Clin Fac Med Sao Paulo 1989; 44:73-5. [PMID: 2616989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Recent studies have shown that anti-DNA and anticardiolipin antibodies in patients with SLE may cross-react. Using an ELISA for determination of these antibodies, a strong association between IgG anti-denatured DNA and IgG anticardiolipin antibodies was found. Eight sera samples with the highest levels of both antibodies were selected to determine the possibility of a cross-reaction. The levels of anticardiolipin were not affected by denatured DNA in concentrations adequate to inhibit the anti-DNA binding. These data did not confirm previous studies using monoclonal antibodies showing cross reactivity between the two groups of antibodies. Nevertheless, a population of antibodies that may cross-reacts, in some special cases, cannot be ruled out.
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Santiago MB, Bueno C, Viana V, Cossermelli W, Oliveira RM. Influence of serum inactivation on detection of anticardiolipin antibodies (ACA) by ELISA. Clin Exp Rheumatol 1989; 7:99-100. [PMID: 2706826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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25
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dos Santos RF, Santiago MB, Yoshinari NH, Rodrigues CJ, Cossermelli W. [The direct immunofluorescence skin test in systemic lupus erythematosus. Correlation with the clinical stage of the disease, laboratory changes and nephropathy]. Rev Hosp Clin Fac Med Sao Paulo 1988; 43:197-200. [PMID: 3074450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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26
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Santiago MB, Maeda LC, Gonçalves CR, Baltazar PA, Carvalho C, Takagaki T. [Myositis and toxoplasmosis]. Rev Hosp Clin Fac Med Sao Paulo 1988; 43:121-3. [PMID: 3247556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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27
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Pereira RM, Santiago MB, Yoshinari NH. [Systemic lupus erythematosus in children]. Rev Hosp Clin Fac Med Sao Paulo 1987; 42:155-8. [PMID: 3454059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Santiago MB, de Mendonça EC, de Melo NB. [Multiple myeloma--a rheumatological overview]. Rev Hosp Clin Fac Med Sao Paulo 1986; 41:124-6. [PMID: 3563300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Santiago MB, Fernandes MDF, Yoshinari NH. [Polyarteritis nodosa cutanea]. Rev Hosp Clin Fac Med Sao Paulo 1986; 41:113-6. [PMID: 2882594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Santiago MB, de Mendonça EC, de Melo NB, Gabriel Júnior A, Cossermelli W. [Waldenström's benign hyperglobulinemic purpura]. Rev Hosp Clin Fac Med Sao Paulo 1986; 41:141-3. [PMID: 3494293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Santiago MB, Pereira RM, Yoshinari NH, de Mendonça EC. [Systemic lupus erythematosus in males]. Rev Hosp Clin Fac Med Sao Paulo 1986; 41:121-3. [PMID: 3563299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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