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Galante Santiago M, Raposo M, Carvalheiro T, Andrade Â, João Salvador M, Pereira da Silva JA, Paiva A. A3.24 Distinct profile of cytokine production by th17 cells in systemic sclerosis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-205124.117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Carvalheiro T, Andrade Â, Lemos M, Galante Santiago M, Silva C, João Salvador M, Pereira da Silva JA, Paiva A. A3.25 systemic sclerosis patients exhibit an increased frequency of T cells and NK cells with effector/cytotoxic phenotype. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-205124.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sánchez-Fidalgo S, da Silva MS, Cárdeno A, Aparicio-Soto M, Salvador MJ, Frankland Sawaya ACH, Souza-Brito ARM, de la Lastra CA. Abarema cochliacarpos reduces LPS-induced inflammatory response in murine peritoneal macrophages regulating ROS-MAPK signal pathway. JOURNAL OF ETHNOPHARMACOLOGY 2013; 149:140-147. [PMID: 23792124 DOI: 10.1016/j.jep.2013.06.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/07/2013] [Accepted: 06/01/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Abarema cochliacarpos (Gomes) Barneby and Grimes (Fabaceae), known by the vulgar name of Babatenã, has been traditionally used in Northeast Brazil, as an anti-inflammatory remedy. Previous studies have demonstrated its anti-inflammatory and antiulcer effects in skin lesion, alcohol gastric ulcer and acute and chronic colitis. AIMS The present study was designed to evaluate the antioxidant and anti-inflammatory effects of the butanolic fraction from A. cochliacarpos (BFAC) and its major flavonoid, (+)-catechin, in LPS-stimulated murine peritoneal macrophages. Moreover, we studied the role of mitogen-activated protein kinase (MAPK)s and NF-kB signaling pathways possibly involved in the beneficial effects. MATERIALS AND METHODS The quantification of the extract was carried out by ultra-performance liquid chromatography analysis. Cell viability was determined using SRB assay. Nitric oxide (NO) production was analyzed by Griess method and intracellular reactive oxygen species (ROS) by fluorescence analysis. In addition, cyclooxygenase (COX-2) and inducible nitric oxide synthase (iNOS) expression, MAPK activation and IkappaBalpha (IKBα) degradation, were determined by Western blot. RESULTS After BFAC characterization, (+)-catechin was revealed as its major constituent. Both BFAC and (+)-catechin, exerted significant anti-oxidant and anti-inflammatory effects inhibiting LPS-induced intracellular ROS and NO production in peritoneal macrophages. Additionally, the extract but also its major component reduced pro-inflammatory proteins expression probably through c-Jun N-terminal kinase and p38 MAPK signaling pathways. CONCLUSION These data suggest that the beneficial effects of BFAC might be mediated, at least in part, by the presence of (+)-catechin. Conclusively our findings confirm the potential of A. cochliacarpos as a new therapeutic strategy for the management of inflammatory and oxidative stress-related diseases.
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Carvalheiro T, Santiago M, Silva C, Salvador MJ, Silva JAP, Paiva A. A3.24 Alterations in χδ T Cells Homeostasis in Systemic Sclerosis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-203216.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Baptista R, Serra S, Martins R, Salvador MJ, Castro G, Gomes M, Santos L, Monteiro P, da Silva JAP, Pêgo M. Exercise-Induced Pulmonary Hypertension in Scleroderma Patients: A Common Finding but with Elusive Pathophysiology. Echocardiography 2012; 30:378-84. [DOI: 10.1111/echo.12063] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Serra S, Monteiro P, Vaz A, Pires E, Monteiro R, Inês L, Salvador MJ, Bernardo J, Malcata A. [Septic arthritis and gout--a case report]. ACTA REUMATOLOGICA PORTUGUESA 2012; 37:70-74. [PMID: 22781515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The authors describe a 54 year-old male patient, admitted after presenting in the emergency room with acute oligoarthritis affecting the shoulders and right tibiotarsal and sternoclavicular joints, with a week's duration. He was non-febrile and related a purulent discharge from the stump of a traumatic amputation of the left thumb, starting a few days prior to the presenting complaints. There was a previous history of gouty arthritis and moderate alcoholism. Lab work revealed an elevation of the acute phase markers, with marked neutrophilia. Upon admittance, the patient underwent arthrocentesis, revealing a purulent discharge with sodium monourate crystals, which cultured positively for meticillin-sensitive Staphylococcus aureus. Besides antibiotherapy, on Day 5 the patient presented with a cervical abscess with extension to mediastinum; the abscess was drained by a cardiothoracic surgeon, and the right sternoclavicular and first costochondral articulations were found to be destroyed. The authors note that, although it is a rare occurrence septic arthritis can coexist with gout, while discussing the possible mecanisms of this association, as well as particular details of the clinical case presented.
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Machado P, Bogas M, Ribeiro A, Costa J, Neto A, Sepriano A, Raposo A, Cravo AR, Vilar A, Furtado C, Ambrósio C, Miguel C, Vaz C, Catita C, Nour D, Araújo D, Vieira-Sousa E, Teixeira F, Brandão F, Canhão H, Cordeiro I, Gonçalves I, Ferreira J, Fonseca JE, da Silva JAP, Romeu J, Ferreira J, Costa L, Maurício L, Cunha-Miranda L, Parente M, Coutinho M, Cruz M, Oliveira M, Salvador MJ, Santos MJ, Pinto P, Valente P, Abreu P, Roque R, Ramiro S, Capela S, Las V, Barcelos A. 2011 Portuguese recommendations for the use of biological therapies in patients with psoriatic arthritis. ACTA REUMATOLOGICA PORTUGUESA 2012; 37:26-39. [PMID: 22781512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To develop recommendations for the treatment of psoriatic arthritis (PsA) with biological therapies, endorsed by the Portuguese Society of Rheumatology. METHODS These treatment recommendations were formulated by Portuguese rheumatologists based on literature evidence and consensus opinion. A draft of the recommendations was first circulated to all Portuguese rheumatologists and their suggestions were incorporated in the draft. At a national meeting the recommendations were discussed and all attending rheumatologists voted on the level of agreement for each recommendation. A second draft was again circulated before publication. RESULTS A consensus was achieved regarding the initiation, assessment of response and switching biological therapies in patients with PsA. Specific recommendations were developed for several disease domains: peripheral arthritis, axial disease, enthesitis and dactylitis. CONCLUSION These recommendations may be used for guidance in deciding which patients with PsA should be treated with biological therapies. They cover a rapidly evolving area of therapeutic intervention. As more evidence becomes available and more biological therapies are licensed, these recommendations will have to be updated.
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Fonseca JE, Bernardes M, Canhão H, Santos MJ, Quintal A, Malcata A, Neto A, Cordeiro A, Rodrigues A, Mourão AF, Ribeiro AS, Cravo AR, Barcelos A, Cardoso A, Vilar A, Braña A, Faustino A, Silva C, Duarte C, Araújo D, Nour D, Sousa E, Simões E, Godinho F, Brandão F, Ventura F, Sequeira G, Figueiredo G, Cunha I, Matos JA, Branco J, Ramos J, Costa JA, Gomes JA, Pinto J, Silva JC, Silva JA, Patto JV, Costa L, Miranda LC, Inês L, Santos LM, Cruz M, Salvador MJ, Ferreira MJ, Rial M, Queiroz MV, Bogas M, Araújo P, Reis P, Abreu P, Machado P, Pinto P, André R, Melo R, Garcês S, Cortes S, Alcino S, Ramiro S, Capela S. Portuguese guidelines for the use of biological agents in rheumatoid arthritis - October 2011 update. ACTA REUMATOLOGICA PORTUGUESA 2011; 36:385-388. [PMID: 22472929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The authors present the revised version of the Portuguese Society of Rheumatology (SPR) guidelines for the treatment of Rheumatoid Arthritis (RA) with biological therapies. In these guidelines the criteria for introduction and maintenance of biological agents are discussed as well as the contraindications and procedures in the case of nonresponders. Biological treatment (with a tumour necrosis factor antagonist, abatacept or tocilizumab) should be considered in RA patients with a disease activity score 28 (DAS 28) equal to or greater than 3.2 despite treatment with at least 20mg-weekly-dose of methotrexate (MTX) for at least 3 months or, if such treatment is not possible, after 3 months of other conventional disease modifying drug or combination therapy. A DAS 28 score between 2.6 and 3.2 with a significant functional or radiological deterioration under treatment with conventional regimens could also constitute an indication for biological treatment. The treatment goal should be remission or, if that is not achievable, at least a low disease activity, defined by a DAS28 lower than 3.2, without significative functional or radiological worsening. The response criteria, at the end of the first 3 months of treatment, are a decrease of at least 0.6 in the DAS28 score. After 6 months of treatment response criteria is defined as a decrease greater than 1.2 in the DAS28 score. Non-responders, in accordance to the Rheumatologist’s clinical opinion, should try a switch to another biological agent (tumour necrosis factor antagonist, abatacept, rituximab or tocilizumab).
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Serra S, Monteiro P, Pires E, Vieira R, Telechea O, Inês L, Salvador MJ, Malcata A. [Relapsing polychondritis, interstitial granulomatous dermatitis and antiphospholipid syndrome: an unusual clinical association]. ACTA REUMATOLOGICA PORTUGUESA 2011; 36:292-297. [PMID: 22113604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The authors describe the case of a 49 year-old male patient with a 3-year history of antiphospholipid syndrome, admitted after presenting in the emergency room with erythematous nodular skin lesions, affecting the face and neck, with a week's duration. Local biopsies were suggestive of interstitial granulomatous dermatitis. The patient described lesions compatible with bilateral auricular chondritis, two weeks prior to the appearance of the nodules, which resolved spontaneously after 3 days. There was a previous episode of nasal chondritis, two years previously, and another episode starting at the 7th day of hospitalization. These findings, taken together with a diagnosis of seronegative polyarthritis established 5 years before the current events, lead to a diagnosis of relapsing polychondritis.
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Fonseca JE, Canhão H, Reis P, Santos MJ, Branco J, Quintal A, Malcata A, Araújo D, Ventura F, Figueiredo G, da Silva JC, Patto JV, de Queiroz MV, Santos RA, Neto AJ, de Matos AD, Rodrigues A, Mourão AF, Ribeiro AS, Cravo AR, Barcelos A, Cardoso A, Vilar A, Braña A, Faustino A, Silva C, Godinho F, Cunha I, Costa JA, Gomes JAM, Pinto JAA, da Silva JAP, Miranda LC, Inês L, Santos LM, Cruz M, Salvador MJ, Ferreira MJ, Rial M, Bernardes M, Bogas M, Araújo P, Machado P, Pinto P, de Melo RG, Cortes S, Alcino S, Capela S. Portuguese guidelines for the use of biological agents in rheumatoid arthritis - March 2010 update. ACTA REUMATOLOGICA PORTUGUESA 2010; 35:95-98. [PMID: 20505635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The authors present the revised version of the Portuguese Society of Rheumatology (SPR) guidelines for the treatment of rheumatoid arthritis (RA) with biological therapies. In these guidelines the criteria for introduction and maintenance of biological agents are discussed as well as the contraindications and procedures in the case of non-responders. Biological treatment should be considered in RA patients with a disease activity score 28 (DAS 28) superior to 3.2 despite treatment with 20mg/week of methotrexate (MTX) for at least 3 months or, if such treatment is not possible, after 6 months of other conventional disease modifying drug or combination therapy. A DAS 28 score between 2.6 and 3.2 with a significant functional or radiological deterioration under treatment with conventional regimens could also constitute an indication for biological treatment. The treatment goal should be remission or, if that is not achievable, at least a low disease activity, characterized by a DAS28 lower than 3.2, without significative functional or radiological worsening. The response criteria, at the end of the first 3 months of treatment, are a decrease of 0.6 in the DAS28 score. After 6 months of treatment response criteria is defined as a decrease of more than 1.2 in the DAS28 score. Non-responders, in accordance to the Rheumatologist's clinical opinion, should try a switch to another biological agent (tumour necrosis factor antagonist, abatacept, rituximab or tocilizumab).
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Serra S, Salvador MJ, Malcata A. [Gorham syndrome, a rare disease...]. ACTA REUMATOLOGICA PORTUGUESA 2009; 34:666-667. [PMID: 20087270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Oliveira P, Monteiro P, Coutinho M, Salvador MJ, Costa ME, Malcata A. [Health-related quality of life and chronic pain experience in rheumatic diseases]. ACTA REUMATOLOGICA PORTUGUESA 2009; 34:511-519. [PMID: 19830929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVES To assess differences among health-related quality of life, pain threshold and perception,and passive coping strategies with chronic pain(specifically retreating, worrying, and resting), as well as associations among variables in three groups of rheumatic patients - fibromyalgia (FM),rheumatoid arthritis (RA), and osteoarthritis (OA). MATERIAL AND METHODS 86 participants diagnosed with FM (n = 25), RA (n = 31) and OA (n = 30) completed the following measures: Clinical and Sociodemographic Questionnaire (QSDC), Medical Outcomes Study 36-item Short Form Health Survey(SF-36v2), Pain Coping Inventory (PCI), visual analogic scale (VAS) for pain, and dolorimeter for threshold pain. SPSS software was used to perform statistical analyses. RESULTS FM patients reported the lowest levels of quality of life and threshold pain, as well as the highest levels of pain perception and passive coping with chronic pain. Associations between variables support that experience with chronic pain is managed more successfully in OA patients, followed by RA patients and, finally, by FM patients. CONCLUSIONS Our findings support the adoption ofa biopsychosocial model for assessment and intervention with rheumatic patients, considering specificities associated to each illness.
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Vaz C, Couto M, Duarte C, Salvador MJ, Inês L, Malcata A. [An unusual case of generalized pain: paramyloidosis simulating fibromyalgia]. ACTA REUMATOLOGICA PORTUGUESA 2009; 34:431-435. [PMID: 19727056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The authors report a case of a 52-year old female previously followed at the Outpatient Rheumatology Clinic with the diagnosis of Fibromyalgia (FM). Approximately 2 years after this diagnosis, she presents with a 2nd degree burn in a hand, as a result of thermal hypoesthesia. The patient described hipostesia of the distal upper and lower limbs, incontinence of the anal sphincter and chronic diarrhoea with progressive worsening. The electromiography showed sensory-motor axonal polyneuropathy, chronic, moderate to severe. The muscle and nerve biopsy showed deposition of amyloid substance. The search for TTR Met 30 was positive, confirming the diagnosis of familial amyloidotic polyneuropathy. This is the first reported case of familial amyloidotic polyneuropathy as part of the differential diagnosis of fibromyalgia.
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Monteiro P, Coutinho M, Salvador MJ, Malcata A. [Primary Sjögren syndrome and inclusion body myositis]. ACTA REUMATOLOGICA PORTUGUESA 2009; 34:261-265. [PMID: 19474780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The authors report the case of a 69-years-old woman with Sjögren's syndrome. After 8 years of disease she developed muscle weakness and the diagnosis of inclusion body myositis was established. This is a rare association. The patient had a good response to the immunosupressive treatment. Similar cases can be found in the literature and there seems to be a subset of inclusion body myositis associated with autoimmune diseases that shows a better response to treatment and a more favourable prognosis.
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Vaz C, Salvador MJ, Malcata A. [Congenital diastasis of pubic symphysis]. ACTA REUMATOLOGICA PORTUGUESA 2009; 34:441. [PMID: 19727059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Monteiro P, Coutinho M, Machado P, Garcia J, Salvador MJ, Inês L, Silva J, Malcata A. [Intersticial lung disease as the sole manifestation of antisynthetase syndrome]. ACTA REUMATOLOGICA PORTUGUESA 2009; 34:256-260. [PMID: 19474779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The authors report a clinical case of a woman who had a 3 years diagnosis of hipersensitivity pneumonitis based on intersticial lung disease without other manifestations. The diagnosis of antisynthetase syndrome was made three years after the initial symptoms upon the onset of systemic manifestations with articular involvement, myositis and determination of anti-PL 7 antibodies. In this syndrome, the isolated pulmonary involvement is rare.
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Monteiro P, Duarte C, Salvador MJ, Malcata A. [Report of an amyopathic dermatomyositis clinical case]. ACTA REUMATOLOGICA PORTUGUESA 2009; 34:266-270. [PMID: 19474781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The authors report a clinical case of a 41-years-old man with astenia and myalgias maintained for many years without an accurate diagnosis. Amyopathic dermatomyositis was diagnosed based on the presence of typical cutaneous lesions and the absence of myositis. Subsequent evidence of subclinical myositis allowed the diagnosis of hypomyophatic dermatomyositis. Finally, the diagnosis of classical dermatomyositis could be made when the patient presented elevated levels of muscle enzimes. There was a good clinical response to imunossupressor therapy and the patient remains asymptomatic. Differences in the clinical management of amyopathic, hypomyopathic and classic dermatomyositis are discussed.
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Monteiro P, Garcia J, Salvador MJ, Malcata A. [Sacral schwannoma in a lumbar spinal stenosis: a rare condition]. ACTA REUMATOLOGICA PORTUGUESA 2009; 34:438-440. [PMID: 19727058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Monteiro P, Abreu P, Salvador MJ, Malcata A. [Secondary amyloidosis and systemic lupus erythematosus]. ACTA REUMATOLOGICA PORTUGUESA 2009; 34:400-404. [PMID: 19727051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The authors report a clinical case of a 57 years old woman with systemic lupus erythematosus diagnosed 25 years before and secondary amyloidosis. Secondary amyloidosis can be associated with inflammatory or infectious chronic diseases, however the association with systemic lupus erythematosus is rare. We discuss the association between the two entities.
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Pereira IC, Barbosa AM, Salvador MJ, Soares AM, Ribeiro W, Cogo JC, Zamuner SR. Anti-inflammatory activity of Blutaparon portulacoides ethanolic extract against the inflammatory reaction induced by Bothrops jararacussu venom and isolated myotoxins BthTX-I and II. J Venom Anim Toxins Incl Trop Dis 2009. [DOI: 10.1590/s1678-91992009000300013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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Silva JAP, Salvador MJ, Duarte C. [Rheumatology training in Europe new paradigms recommended by the European Board of Rheumatology]. ACTA REUMATOLOGICA PORTUGUESA 2008; 33:123-124. [PMID: 18604179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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Cunha I, Saavedra MJ, Oliveira MA, Salvador MJ, Malcata A. [Hajdu-Cheney Syndrome: a case of acroosteolysis]. ACTA REUMATOLOGICA PORTUGUESA 2007; 32:169-74. [PMID: 17576397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Acroosteolysis is a rare clinical manifestation characterized by bone resorption of the terminal phalanges. It can occur in association with the variety of systemic diseases or be idiopathic. The authors describe a case of 47-year-old woman with acroosteolysis of distal phalanges since childhood, congenital amaurosis, premature loss of teeth and mal perforans. Because of the rate and exuberant manifestations found, with no etiological cause identified, the authors diagnosed Hajdu-Cheney Syndrome. Hajdu-Cheney is a rare, autosomal dominant disorder, with sporadic cases, apparently representing new mutations. Based on this case the authors review the differential diagnoses of acroosteolysis and the clinical manifestation of the Hajdu-Cheney syndrome
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Couto M, Ambrósio C, Velez J, Salvador MJ, Malcata A. [Low back pain with 'red flags': a case of spondylodiscitis]. ACTA REUMATOLOGICA PORTUGUESA 2007; 32:67-72. [PMID: 17450767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Spondylodiscitis is a serious clinical entity. Despite the decrease in mortality from about 25% in the pre-antibiotic era to near 5%, it remains significant and the associated morbidity is still relevant. The rate of residual neurological deficits among survivors is around 7%. In 30% of patients some related symptoms persist, the most important being pain. The authors report the case of a 74-year-old male patient with recent onset low back pain, which caused considerable disability. With this work the authors intend to alert to the fact that in a patient with a common symptom such as low back pain, the presence of "red flags" requires a quick investigation and diagnosis in order to prevent serious damage.
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Taleb-Contini SH, Salvador MJ, Balanco JMF, Albuquerque S, de Oliveira DCR. Antiprotozoal effect of crude extracts and flavonoids isolated from Chromolaena hirsuta
(asteraceae). Phytother Res 2004; 18:250-4. [PMID: 15103676 DOI: 10.1002/ptr.1431] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Phytochemical study of Chromolaena hirsuta (Hook. & Arn.) R. King & H. Robinson crude extract (collected in Furnas, MG-Brasil) produced fifteen flavonoids, two triterpenes and five steroids. IR, UV,(1)H and (13)C NMR spectroscopy and GC analysis were used for the identification of these compounds. The dichloromethanic and ethanolic crude extracts (flowers and leaves) and six flavonoids isolated from this specie have been assayed for antiprotozoal activity against tripomastigote forms of Trypanosoma cruzi and promastigote forms of Leishmania amazonensis. The crude extracts significantly reduced the viability of T. cruzi and Leishmania amazonensis, and the six flavonoids showed considerable antiproliferative effect of development of two parasites evaluated. This is the fi rst report of antiprotozoal activity of extracts of C. hirsuta.
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Schinor EC, Salvador MJ, Ito IY, de Albuquerque S, Dias DA. Trypanocidal and antimicrobial activities of Moquinia kingii. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2004; 11:224-229. [PMID: 15070176 DOI: 10.1078/0944-7113-00342] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A chloroform crude extract (aerial part) and two compounds, apigenin (1) and cynaropicrin (2), isolated from Moquinia kingii were evaluated against Trypanosoma cruzi trypomastigotes in vitro. Antimicrobial activity was also screened using twenty-two strains including gram-positive and gram-negative bacteria and the yeasts Candida albicans and C. tropicalis. The chloroform crude extract, fractions and isolated compounds from M. kingii were active for both activities. The IC50 values for trypanocidal activity obtained for cynaropicrin and apigenin were 93.5 microg/ml and 181 microg/ml, respectively, while the minimum inhibitory concentrations (MICs) varied from 100 microg/ml to 2500 microg/ml, against the strains of bacteria and yeasts evaluated.
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