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1.
Mem. Inst. Oswaldo Cruz ; 111(10): 635-641, Oct. 2016. tab, graf
Article in English | LILACS | ID: lil-796907

ABSTRACT

Leprosy is a chronic infectious disease that requires better understanding since it continues to be a significant health problem in many parts of the world. Leprosy reactions are acute inflammatory episodes regarded as the central etiology of nerve damage in the disease. The activation of endothelium is a relevant phenomenon to be investigated in leprosy reactions. The present study evaluated the expression of endothelial factors in skin lesions and serum samples of leprosy patients. Immunohistochemical analysis of skin samples and serum measurements of VCAM-1, VEGF, tissue factor and thrombomodulin were performed in 77 leprosy patients and 12 controls. We observed significant increase of VCAM-1 circulating levels in non-reactional leprosy (p = 0.0009). The immunostaining of VEGF and tissue factor was higher in endothelium of non-reactional leprosy (p = 0.02 for both) than healthy controls. Patients with type 1 reaction presented increased thrombomodulin serum levels, compared with non-reactional leprosy (p = 0.02). In type 2 reaction, no significant modifications were observed for the endothelial factors investigated. The anti-inflammatory and antimicrobial activities of the endotfhelial factors may play key-roles in the pathogenesis of leprosy and should be enrolled in studies focusing on alternative targets to improve the management of leprosy and its reactions.


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Young Adult , Leprosy/metabolism , Skin/pathology , Thrombomodulin/analysis , Thromboplastin/analysis , Vascular Cell Adhesion Molecule-1/analysis , Vascular Endothelial Growth Factor A/analysis , Biomarkers/analysis , Biomarkers/metabolism , Enzyme-Linked Immunosorbent Assay , Immunohistochemistry , Leprosy/pathology , Thrombomodulin/metabolism , Thromboplastin/metabolism , Vascular Cell Adhesion Molecule-1/metabolism , Vascular Endothelial Growth Factor A/metabolism
2.
Mem. Inst. Oswaldo Cruz ; 107(supl.1): 104-111, Dec. 2012. ilus, mapas, tab
Article in English | LILACS | ID: lil-659748

ABSTRACT

New Mycobacterium leprae protein antigens can contribute to improved serologic tests for leprosy diagnosis/classification and multidrug therapy (MDT) monitoring. This study describes seroreactivity to M. leprae proteins among participants from three highly endemic leprosy areas in Brazil: central-western Goiânia/Goiás (GO) (n = 225), Rondonópolis/Mato Grosso (MT) (n = 764) and northern Prata Village/Pará (PA) (n = 93). ELISA was performed to detect IgG to proteins (92f, 46f, leprosy IDRI diagnostic-1, ML0405, ML1213) and IgM to phenolic glycolipid-I (PGL-I). Multibacillary (MB) leprosy had positive rates for PGL-I that were similar to those for proteins; however, some anti-PGL-I-negative subjects were positive for proteins, suggesting that adding protein antigen to PGL-I can enhance the sensitivity of MB leprosy detection. In MT, different degrees of seroreactivity were observed and ranked for MB, former patients after MDT, paucibacillary (PB) leprosy, household contact (HHC) and endemic control (EC) groups. The seroreactivity of PB patients was low in GO and MT. HHCs from different endemic sites had similar IgG antibody responses to proteins. 46f and 92f were not recognised by most tuberculosis patients, ECs or HHCs within GO, an area with high BCG vaccination coverage. Low positivity in EC and HHC was observed in PA and MT. Our results provide evidence for the development of an improved serologic test that could be widely applicable for MB leprosy testing in Brazil.


Subject(s)
Adult , Female , Humans , Male , Antibodies, Bacterial/blood , Antigens, Bacterial/blood , Bacterial Proteins/blood , Endemic Diseases , Glycolipids/blood , Leprosy/diagnosis , Mycobacterium leprae/immunology , Brazil/epidemiology , Case-Control Studies , Enzyme-Linked Immunosorbent Assay , Immunoglobulin M/blood , Leprosy/epidemiology
3.
Arq. neuropsiquiatr ; 70(4): 281-286, Apr. 2012. ilus
Article in English | LILACS | ID: lil-622590

ABSTRACT

Neurotrophins are growth factors with crucial roles in neural pathophysiology. These mediators functionally modulate nociceptive fibers, and changes in neurotrophins expression have been correlated with early loss of nociception in leprosy. This study investigated the expression of NGF, BDNF, and NT3 in dermal nerves of leprosy patients. Characterization of Remak bundles was achieved by p75NTR, and axonal markers NF-L and PGP 9.5 immunostaining. Clinical parameters of neural impairment have been evaluated by Semmes-Wenstein monofilaments. Our findings demonstrated decrease of NGF in borderline leprosy, when compared to control specimens. Similar results were observed in PGP 9.5 expression (borderline: p<0.001 and lepromatous: p<0.05) and NF-L (lepromatous: p<0.05), suggesting advanced Remak bundles degeneration in multibacillary leprosy. It has also been observed positive correlation between p75NTR and PGP 9.5, indicating association between Schwann cells and axons in Remak bundles. Present data indicate that neurotrophins imbalance may participate in the establishment of peripheral nerve damage.


Neurotrofinas são fatores de crescimento com papel fundamental na fisiopatologia neural. Esses mediadores modulam funcionalmente fibras nociceptivas. Mudanças em sua expressão têm sido relacionadas à perda precoce da nocicepção na hanseníase. Este estudo investigou a expressão de NGF, BDNF e NT3 em nervos dérmicos de pacientes hansenianos. A caracterização de fibras nervosas não mielinizadas foi feita por p75NTR e marcadores axonais NF-L e PGP 9.5. Os parâmetros clínicos de dano neural foram avaliados por monofilamentos Semmes-Wenstein. Nossos achados demonstram diminuição de NGF nos pacientes dimorfos em comparação aos controles. Resultados similares foram observados para PGP 9.5 (dimorfos: p<0,001; virchowianos: p<0,05) e NF-L (virchowianos: p<0.05), sugerindo degeneração avançada das terminações nervosas na hanseníase multibacilar. Foi observada correlação positiva entre p75NTR e PGP 9.5, indicando associação entre células de Schwann e axônios em fibras nervosas não mielinizadas. Os resultados indicam que o desequilíbrio na expressão das neurotrofinas pode participar do dano neural periférico.


Subject(s)
Humans , Brain-Derived Neurotrophic Factor/analysis , Leprosy , Nerve Growth Factor/analysis , /analysis , Skin/chemistry , Biomarkers/analysis , Case-Control Studies , Enzyme-Linked Immunospot Assay , Immunohistochemistry , Leprosy/metabolism , Leprosy/pathology , Skin/innervation , Skin/pathology
4.
Rio de Janeiro; s.n; 2012. 8 p. ilus, map, tab, graf.
Non-conventional in English | LILACS, SES-SP, HANSEN, HANSENIASE, SESSP-ILSLPROD, SES-SP, SESSP-ILSLACERVO, SES-SP | ID: biblio-1085423

ABSTRACT

New Mycobacterium leprae protein antigens can contribute to improved serologic tests for leprosy diagnosis/classification and multidrug therapy (MDT) monitoring. This study describes seroreactivity to M. leprae proteins among participants from three highly endemic leprosy areas in Brazil: central-western Goiânia/Goiás (GO) (n = 225), Rondonópolis/Mato Grosso (MT) (n = 764) and northern Prata Village/Pará (PA) (n = 93). ELISA was performed to detect IgG to proteins (92f, 46f, leprosy IDRI diagnostic-1, ML0405, ML1213) and IgM to phenolic glycolipid-I (PGL-I). Multibacillary (MB) leprosy had positive rates for PGL-I that were similar to those for proteins; however, some anti-PGL-I-negative subjects were positive for proteins, suggesting that adding protein antigen to PGL-I can enhance the sensitivity of MB leprosy detection. In MT, different degrees of seroreactivity were observed and ranked for MB, former patients after MDT, paucibacillary (PB) leprosy, household contact (HHC) and endemic control (EC) groups. The seroreactivity of PB patients was low in GO and MT. HHCs from different endemic sites had similar IgG antibody responses to proteins. 46f and 92f were not recognised by most tuberculosis patients, ECs or HHCs within GO, an area with high BCG vaccination coverage. Low positivity in EC and HHC was observed in PA and MT. Our results provide evidence for the development of an improved serologic test that could be widely applicable for MB leprosy testing in Brazil


Subject(s)
Humans , Male , Female , Adult , Antibodies, Bacterial/blood , Antigens, Bacterial/blood , Endemic Diseases , Glycolipids/blood , Leprosy/diagnosis , Leprosy/epidemiology , Mycobacterium leprae/immunology , Bacterial Proteins/blood , Brazil/epidemiology , Enzyme-Linked Immunosorbent Assay , Case-Control Studies , Immunoglobulin M/blood
5.
Rev. Soc. Bras. Med. Trop ; 41(supl.2): 45-47, 2008. tab
Article in English, Portuguese | LILACS, SES-SP, HANSEN, HANSENIASE, SESSP-ILSLPROD, SES-SP, SESSP-ILSLACERVO, SES-SP | ID: lil-519335

ABSTRACT

A hanseníase ainda é doença endêmica no Brasil, com cerca de 40.000 novos casos por ano. Devido à dificuldade na realização de exames laboratoriais em campo, classifica-se a forma clínica contando-se lesões, o que pode causar subdiagnóstico de casos multibacilares e falha terapêutica. Para avaliar uma nova ferramenta para diagnóstico de hanseníase multibacilar, o teste ML Flow, foi realizado em 21/77 (27,3%) pacientes com hanseníase dimorfa (6 DV e 15 DT) não tratados, com até cinco lesões de pele, avaliados de acordo com a classificação de Ridley & Jopling (R&J). O teste ML Flow foi positivo em 14/21 (66,6%) pacientes (4 DV e 10 DT); em 7/21 (33,3%) pacientes (5 DT e 2 DV) o resultado foi negativo. A classificação da hanseníase baseada somente na contagem de lesões pode falhar em diagnosticar casos MB. O ML Flow é ferramenta útil no diagnóstico de hanseníase dimorfa com até cinco lesões cutâneas.


Leprosy remains an endemic disease in Brazil, with almost 40,000 new cases diagnosed each year. As it is difficult to perform laboratory procedures in the field, operational classification is determined by counting lesions, which can cause underdiagnosis of multibacillary cases and failures in treatment. To evaluate a new tool to diagnose MB cases, the ML Flow test, 21/77 (27.3%) patients with untreated borderline leprosy (6 BL and 15 BT) with 1 to 5 cutaneous lesions were evaluated according to the R&J Classification. The ML Flow test was positive in 14/21 (66.6%) patients; 7/21 (33.3%) cases, 5 BT and 2 BL, showed negative results. Classification of leprosy based only on the number of lesions can fail to diagnose MB leprosy. The ML Flow test is a useful tool to diagnose borderline leprosy in patients with 1 to 5 cutaneous lesions.


Subject(s)
Humans , Antibodies, Bacterial/blood , Antigens, Bacterial , Glycolipids , Leprosy/classification , Mycobacterium leprae/immunology , Antigens, Bacterial/immunology , Glycolipids/immunology , Immunoglobulin M/blood , Leprosy/diagnosis , Leprosy/immunology , Skin/microbiology , Skin/pathology
6.
Rev. Soc. Bras. Med. Trop ; 40(2): 188-191, mar.-abr. 2007. tab
Article in Portuguese | LILACS, SES-SP, HANSEN, HANSENIASE, SESSP-ILSLPROD, SES-SP, SESSP-ILSLACERVO, SES-SP | ID: lil-452620

ABSTRACT

Neste estudo, propomos comparar o teste cutâneo de Mitsuda e os alelos HLA-DR2/HLA-DR3 e HLA-DQ1 relacionados com as formas clínicas da hanseníase em 176 pacientes (50 TT, 50 LL e 76 B). Os resultados obtidos não revelaram associação entre reação de Mitsuda e os alelos HLA nas formas clínicas isoladas; no entanto, quando analisados de acordo com a resposta ao teste de Mitsuda, associação significativa foi encontrada entre os pacientes Mitsuda negativos e HLA-DQ1 (p=0,002). Não foi observada associação entre reação de Mitsuda positiva e alelos HLA-DR2/DR3. Concluímos que existe importante participação do alelo HLA-DQ1 na ausência de resposta ao teste de Mitsuda. Sugerimos estudos mais específicos para este alelo.


In this study, we aimed to compare the Mitsuda skin test with the alleles HLA-DR2/HLA-DR3 and HLA-DQ1, in relation to the clinical forms of leprosy in 176 patients (50 TT, 50 LL and 76 B). The results obtained did not reveal any association between the Mitsuda reaction and the HLA alleles in the clinical forms isolated. However, when analyzed according to Mitsuda test response, a significant association was found between patients with negative Mitsuda reaction and HLA-DQ1 (p=0.002). No association was observed between positive Mitsuda reaction and the HLA-DR2/DR3 alleles. We concluded that the allele HLA-DQ1 has an important participation when there is no response to the Mitsuda test. We suggest that more specific studies should be developed on this allele.


Subject(s)
Humans , HLA-D Antigens/immunology , Leprosy/immunology , Skin Tests/methods , Alleles , HLA-D Antigens/genetics , HLA-DQ Antigens/genetics , HLA-DQ Antigens/immunology , /genetics , /immunology , /genetics , /immunology , Phenotype , Polymerase Chain Reaction
7.
Hansen. int ; 32(1): 75-79, 2007. ilus
Article in Portuguese | LILACS, SES-SP, SESSP-ILSLPROD, SES-SP, SESSP-ILSLACERVO, SES-SP | ID: lil-492490

ABSTRACT

Homem de 36 anos de idade, procedente de Bauru-SP, refere que há 4 meses apresenta bolhas periungueais em mão esquerda associadas à perda de sensibilidade local;evolui com reabsorção parcial e progressiva de todas as falanges distais desta mão. Procurou serviço médico por várias vezes, sendo prescritos apenas antibióticos para as infecções nas falanges. Ao exame físico, reabsorção de falanges distais em mão esquerda, ausência alterações motoras de origem neural, presença de múltiplasmáculas e placas hipocrômicas em nádegas e membros superiores e inferiores, além de discreta perda de sensibilidade em ambos os pés. As duas primeiras biópsias em duas máculas mostraram quadro compatível com hanseníase indeterminada, com baciloscopia da biópsia negativa, e uma terceira revelou hanseníase na faixa tuberculóide com baciloscopia 1+. As baciloscopias de pontos índices e das lesões foram todas negativas.A reação de Mitsuda foi de 3,5mm, e o Teste Ml-Flowmostrou positividade 3+. O quadro neurológico era deu ma neuropatia sensitiva do membro superior esquerdo,e o estudo neurofisiológico evidenciou uma mononeuropatia múltipla sensitiva e motora do membro superior esquerdo com comprometimento dos nervos ulnar e mediano. O ramo dorsal do nervo ulnar foi submetido à biópsia que demonstrou quadro histológico inflamatório não granulomatoso, mas com baciloscopia 4+ com muitos bacilos típicos. Discute-se a importância de se avaliar todos os critérios antes de se definir a forma clínica de uma doença sistêmica como a hanseníase


Subject(s)
Humans , Male , Adult , Biopsy , Leprosy, Borderline/diagnosis , Serology , Health Centers , Clinical Diagnosis , Delayed Diagnosis
8.
Rev. Soc. Bras. Med. Trop ; 35(4): 293-297, jul.-aug. 2002.
Article in English | LILACS | ID: lil-331754

ABSTRACT

We have studied the role of the immune response in the morphology of the leishmaniotic granuloma induced in the cheek pouch of hamsters, an immunologically privileged site, after inoculation of 3 x 10(5) Leishmania mexicana. Animals were histologically and immunologically evaluated until 120 days after inoculation. Independent of the time of sacrifice, the animals were always non-reactors to the footpad test (FPT). At histology, the introduction of L. mexicana in the cheek pouch leads to an abscess that evolves to a granulomatous reaction rich in amastigote forms, and later it leads to resolution, even in the absence of immune response detectable by FPT. Our results demonstrate that the development of immune response is not preponderant for the control of infection induced by L. mexicana inoculated subcutaneously in the cheek pouch of the hamster. It also suggests that the macrophages present in the leishmaniotic granuloma are capable of eliminating this parasite, even in the absence of immune response evaluated by FPT.


Subject(s)
Animals , Cricetinae , Male , Granuloma , Leishmania mexicana , Leishmaniasis, Cutaneous/pathology , Cheek , Granuloma , Leishmania mexicana , Leishmaniasis, Cutaneous/immunology , Mesocricetus
9.
Rev. Inst. Med. Trop. Säo Paulo ; 42(3): 119-123, May-Jun. 2000. ilus
Article in English | LILACS, SES-SP, SESSP-ILSLPROD, SES-SP, SESSP-ILSLACERVO, SES-SP | ID: lil-262687

ABSTRACT

The subcutaneous tissue of the hamster cheek pouch, a site of immunologic privilege, has been used to investigate the potential infectivity of different types of parasites. It has been demonstrated that the implantation of fragments of lesions induced by the fungus Lacazia loboi, the etiologic agent of Jorge Lobo's disease, into the subcutaneous tissue of the hamster cheek pouch resulted in parasite multiplication and dissemination to satellite lymph nodes16. Here we describe the evolution of lesions induced by the inoculation of the isolated fungus into this immunologically privileged site. The morphology of the inflammatory response and fungal viability and proliferation were evaluated. Inoculation of the fungus into the cheek pouch induced histiocytic granulomas with rare lymphocytes. Although fungal cells were detected for a period of up to 180 days in these lesions, the fungi lost viability after the first day of inoculation. In contrast, when the parasite was inoculated into the footpad, non-organized histiocytic lesions were observed. Langhan's giant cells, lymphocytes and fungal particles were observed in these lesions. Fungal viability was observed up to 60 days after inoculation and non-viable parasites were present in the persistent lesions up to 180 days post-inoculation. These data indicate that the subcutaneous tissue of the hamster cheek pouch is not a suitable site for the proliferation of Lacazia loboi when the fungus isolated from human tissues is tested.


Subject(s)
Animals , Male , Cricetinae , Blastomyces/immunology , Blastomycosis/immunology , Granuloma/pathology , Blastomyces/isolation & purification , Random Allocation , Cheek/microbiology , Cheek/pathology , Extremities/microbiology , Extremities/pathology , Granuloma/immunology , Granuloma/microbiology
10.
In. Opromolla, Diltor Vladimir Araujo. Noções de hansenologia. Bauru, SP, Centro de Estudos Dr. Reynaldo Quagliato, 2000. p.27-42.
Monography in Portuguese | LILACS, SES-SP, HANSEN, HANSENIASE, SESSP-ILSLPROD, SES-SP, SESSP-ILSLACERVO, SES-SP | ID: biblio-1246614
11.
Hansen. int ; 24(2): 115-20, jul.-dez. 1999. ilus, tab
Article in Portuguese | LILACS, SES-SP | ID: lil-268374

ABSTRACT

Considerando as vias aéreas superiores como a mais provável porta de entrada do M.leprae no organismo, no presente estudo avaliou-se o comportamento do bacilo inoculado experimentalmente via intranasal. Assim, camondongos suiços foram inoculados por instilaçäo nasal com M.leprae e sacrificados em diferentes períodos de tempo. Em cada cada sacrifício os pulmöes foram removidos e submetidos ao lavado broncoalveolar (LBA) e análise histopatológica. O LBA foi avaliado quanto ao número de bacilos recuperados e número total e diferencial de células inflamatórias; foi ainda semeado em meios de cultivo Lowenstein-Jensen e Middlebrook 7H9 e 7H11. No LBA foram encontrados bacilos até o 6§ mês de inoculaçäo, näo houve crescimento de micobactérias nas culturas. O número total de células, linfócitos e neutrófilos do LBA obtido de camundongos infectados foi maior que o do grupo controle até o 6§ mês da experimentaçäo. A análise histopatológica revelou pequenos infiltrados celulares distribuídos pelo parênquima pulmonar e ao redor dos vasos até o 6§ mês de sacrifício; näo foram observadas lesöes de disseminaçäo. Os resultados obtidos revelam que a inoculaçäo de M. leprae, via intranasal, em camundongos Suíços, näo levou ao desenvolvimento da doença nem a multiplicaçäo dos bacilos; assim estudos aidcionais envolvendo outras linhagens de camundongos poderäo ser úteis para determinar a importância da via intranasal na infecçäo hansênica


Subject(s)
Animals , Guinea Pigs , Mice , Bronchoalveolar Lavage , Mice , Administration, Intranasal , Leprosy , Mycobacterium leprae/pathogenicity
12.
Botucatu; s.n; 1999. 98 p. ilus, tab, graf.
Thesis in Portuguese | LILACS, SES-SP, HANSEN, HANSENIASE, SESSP-ILSLACERVO, SES-SP | ID: biblio-1235509

ABSTRACT

A utilizaçao da bolsa jugal do hamster na hanseníase experimental, foi avaliada por meio da inoculaçao de 6,0x101 8 M. leprae/ml no seu tecido subepitelial em 60 animais, empregando como grupo de controle, 12 hamster inoculados no coxim plantar. Os animais foram sacrificados 20 e 48 horas e 7, 14, 21 e 28 dias p.i. A evoluçao da lesao de inoculaçao foi anlisada pelo exame histológico em cortes corados pela hematoxilinaeosina e Faraco-Fite. A avaliçao da viabilidade bacilar na bolsa jugal do hamster foi realizada 7, 14, 21 e 28 dias p.i. pelo teste de recuperaçao dos bacilos em camundongos. Os resultados nos permitiram concluir que: a) a resposta inflamatória inicial ao M. leprae na bolsa jugal foi exsutativa e inespecífica, com duraçao curta;


Subject(s)
Cricetinae/anatomy & histology , Leprosy/microbiology , Mycobacterium leprae/isolation & purification , Mycobacterium leprae/pathogenicity
13.
Rev. Soc. Bras. Med. Trop ; 28(3): 233-6, jul.-set. 1995. graf
Article in Portuguese | LILACS | ID: lil-163740

ABSTRACT

Neste estudo investigou-se o potencial imunomodulador do levamisole e da mistura BCG/Mycobacterium leprae em pacientes virchovianos inativos, utilizando como parâmetro a reaçao de Mitsuda. Vinte pacientes, classificados como Mitsuda histologicamente negativos há 10 anos, foram divididos em três grupos: cinco pacientes que foram somente reavaliados frente a mitsudina: oito pacientes que receberam levamisole e, sete que receberam a mistura de BCG vivo mais M. leprae morto. Os resultados mostraram que: 1) o levamisole nao alterou a reatividade à mitsudina em nenhum dos casos estudados; 2) as modificaçoes da reatividade verificadas com o uso da mistura (tres casos) ou aquelas que ocorreram espontaneamente (tres casos) foram sempre de pequena amplitude e refletiram variaçoes próprias de pacientes com algum grau de resistência ao Mycobacterium leprae.


Subject(s)
Humans , Adjuvants, Immunologic/therapeutic use , BCG Vaccine/therapeutic use , Leprosy/immunology , Immunotherapy , Levamisole/therapeutic use , Mycobacterium leprae , Leprosy/therapy
15.
Hansen. int ; 16(1/2): 23-8, dez. 1991. tab
Article in Portuguese | LILACS | ID: lil-143817

ABSTRACT

Doze pacientes virchovianos portadores de leucoplasias foram avaliados imunologicamente visando determinar a participaçäo do sistema imune nesta manifestaçäo. As provas utilizadas näo demonstraram qualquer normalidade imunológica nestes pacientes de modo que, nossos resultados näo apoiam a idéia de envolvimento imune inespecífico na patogênese das leucoplasia na cavidade bucal


Subject(s)
Adult , Middle Aged , Humans , Male , Female , Leprosy, Lepromatous/immunology , Leukoplakia, Oral/immunology , Immunity, Cellular , Leukoplakia, Oral/pathology
16.
Bauru; s.n; 199l. 108 p. ilus.
Thesis in Portuguese | LILACS, SES-SP, HANSEN, HANSENIASE, SESSP-ILSLACERVO, SES-SP | ID: biblio-1230464

ABSTRACT

O ENH é um episódio reacional verificado em pacientes multibacilíferos cuja etiologia tem sido associada aos IC. Os dados histopatológicos da lesao bem como a demostraçao de IC em vasos com vasculite serviram de base para o conceito de que o ENH seria uma manisfestaçao clínica da reaçao de ARTHUS. Contudo, a dificuldade de reproduçao dos trabalhos que demostraram imunoglobinas e complemento em parede de vasos e/ou extravascularmente em lesoes de ENH, tem lançado dúvidas na participaçao de IC na patogênese desta reaçao. Na presente investigaçao, o estudo da reaçao de ENH empregando elemento para detecçao de IC através da técnica de imunofluorescência em associaçao com técnicas histopatológicas rotineiras, teve por finalidade avaliar a participaçao dos IC neste quadro reacional. Para a realizaçao deste estudo foram analisadas 34 biópsias, das quais 25 apresentaram quadro histopatológico reacional compatível com ENH e 09 quadro nao reacionais, Este material foi submetido à imunofluorescência direta, empregando antisoros rotineiramente utilizados para detecçao do IC


Subject(s)
Erythema Nodosum , Leprosy/physiopathology , Leprosy/immunology , Histology, Comparative , Pathology
17.
Rev. Salusvita (Impr.) ; 7(1): 70-4, 1988.
Article in Portuguese | LILACS | ID: lil-78586

ABSTRACT

Os autores estudaram o comportamento de indivíduos em contato direto com pacientes virchovianos, através do teste de Mitsudina e do percentual de monócitos e/ou linfócitos T, e näo detectaram qualquer tipo de correlaçäo


Subject(s)
Leprosy/immunology , Hypersensitivity, Delayed , Immunity, Cellular
18.
Rev. Salusvita (Impr.) ; 7(1): 92-8, 1988. tab
Article in Portuguese | LILACS | ID: lil-78589

ABSTRACT

O teste de Kveim, utilizado no auxílio diagnóstico da sarcoidose, apresenta resultados falso - positivos em pacientes hansenianos. O presente estudo investiga a possibilidade desta resposta estar associada as alteraçöes teciduais próprias de pacientes hansenianos descritas como fenômeno isopático de Sagher


Subject(s)
Humans , Kveim Test , Leprosy/immunology
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