scholarly journals A Case of Oral Histoplasmosis Concomitant with Pulmonary Tuberculosis

2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Silas Antonio Juvencio de Freitas Filho ◽  
Natália Galvão Garcia ◽  
Mário César de Souza ◽  
Denise Tostes Oliveira

The superficial intraoral lesions of histoplasmosis occurring concomitant to tuberculosis, in a 46-year-old man, are reported. The human immunodeficiency virus (HIV) infection test was negative. The immunosuppression caused by tuberculosis in our patient probably had an important role in the development of intraoral lesions of histoplasmosis. Here, we discussed the role of the dentist in the diagnosis of these infectious diseases, highlighting the importance of anamnesis and the histopathology/immunohistochemistry exams.

2020 ◽  
Vol 7 (5) ◽  
pp. 804
Author(s):  
Rakesh K. Yadav ◽  
Raj K. ◽  
Kachnar V. ◽  
Manoj K. Mathur ◽  
Amitabh D. Shukla

Background: Anti-cyclic citrullinated peptide (anti-CCP) antibodies have been considered very specific for rheumatoid arthritis (RA). Some studies have shown that these antibodies can be positive in infectious diseases like tuberculosis, human immunodeficiency virus infection, etc.Methods: Eighty patients of tuberculosis both pulmonary and extra-pulmonary tuberculosis and thirty patients of human immunodeficiency virus were enrolled in this study from inpatient and outpatient departments from September 2018 to August 2019. Anti-CCP antibody test was done in all the patient by enzyme linked immunosorbent assay.Results: Fifty-three patients were of pulmonary tuberculosis, 27 patients were extra-pulmonary tuberculosis and 30 patients were human immunodeficiency virus infection. Of the 53 cases of pulmonary tuberculosis, 21 (39.6%) cases were positive for anti-CCP antibodies and 32 (60.4%) cases were negative for the same. Of the 27 cases of extra-pulmonary tuberculosis, 3(11.1%) cases were positive for anti-CCP antibodies and 24 (88.9%) cases were negative. Of the 53 patients of pulmonary tuberculosis, 16 were sputum positive and 37 were sputum negative. Of those withsputum positive 9 (56.2%) cases were positive for anti-CCP antibodies and those with sputum negative, 12 (32.4%) cases were positive for anti-CCP antibodies. Of the 30 cases of human immunodeficiency virus, 5 (16.7%) cases were positive for anti-CCP antibodies and 25 (83.3%) cases were negative.Conclusions: Anti-CCP can be positive in cases of infectious diseases like tuberculosis and human immunodeficiency virus. Positivity of anti-CCP antibodies for tuberculosis is more for pulmonary (more for sputum-positive than sputum-negative) than extra-pulmonary tuberculosis. Anti-CCP, thus is not very specific for rheumatoid arthritis.


Blood ◽  
1998 ◽  
Vol 92 (10) ◽  
pp. 3721-3729 ◽  
Author(s):  
Fredrik Müller ◽  
Pål Aukrust ◽  
Ingvild Nordøy ◽  
Stig S. Frøland

Abstract The mechanisms leading to polyclonal hypergammaglobulinemia in patients with human immunodeficiency virus (HIV) infection are not well understood. In light of the important role of interleukin-10 (IL-10) and the interaction between CD40 and CD40 ligand in the normal regulation of B-lymphocyte function and Ig production, we examined these parameters in 24 HIV-infected patients. Both plasma IL-10 levels and the percentage of CD4+ and CD8+lymphocytes expressing CD40 ligand were significantly higher in the patients than in the 10 blood donor controls. Serum IgG correlated positively with circulating IL-10 levels and the percentage of CD4+ lymphocytes expressing CD40 ligand. Furthermore, a single bolus infusion of intravenous Ig (0.4 g/kg) in 8 HIV-infected patients caused a further increase in IL-10 levels in plasma and an increase in both IL-10 and IgG production in peripheral blood mononuclear cell cultures. In another patient group (Wegener’s granulomatosis) receiving a single bolus infusion of intravenous Ig, a similar increase in plasma IL-10 levels was found, suggesting that this may be a general effect of intravenous Ig. In patients with HIV infection, our data suggest that a vicious cycle may be operative where high endogenous Ig levels may enhance IL-10 production that, in turn, leads to higher Ig production.


Blood ◽  
1997 ◽  
Vol 89 (8) ◽  
pp. 2670-2678 ◽  
Author(s):  
Marta Baiocchi ◽  
Eleonora Olivetta ◽  
Cristiana Chelucci ◽  
Anna Claudia Santarcangelo ◽  
Roberta Bona ◽  
...  

Abstract Recent findings have shown that the expression of the seven trans-membrane G-protein–coupled CXCR4 (the receptor for the stromal cell-derived factor [SDF]-1 chemokine) is necessary for the entry of T-lymphotropic human immunodeficiency virus (HIV) strains, acting as a coreceptor of the CD4 molecule. In the human system, the role of CXCR4 in HIV infection has been determined through env-mediated cell fusion assays and confirmed by blocking viral entry in CD4+/CXCR4+ cells by SDF-1 pretreatment. We observed that the human megakaryoblastic CD4+ UT-7 cell line fails to express CXCR4 RNA and is fully resistant to HIV entry. Transfection of an expression vector containing the CXCR4 c-DNA rendered UT-7 cells readily infectable by different T-lymphotropic syncytium-inducing HIV-1 and HIV-2 isolates. Interestingly, HIV-1 infection of CXCR4 expressing UT-7 cells (named UT-7/fus) induces the formation of polynucleated cells through a process highly reminiscent of megakaryocytic differentiation and maturation. On the contrary, no morphologic changes were observed in HIV-2–infected UT-7/fus cells. These findings further strengthen the role of CXCR4 as a molecule necessary for the replication of T-lymphotropic HIV-1 and HIV-2 isolates and provide a useful model to study the functional role of CD4 coreceptors in HIV infection.


1998 ◽  
Vol 36 (6) ◽  
pp. 1756-1760 ◽  
Author(s):  
Susan Norton Rossmann ◽  
Patricia H. Wilson ◽  
John Hicks ◽  
Bruce Carter ◽  
Stanley G. Cron ◽  
...  

Lautropia mirabilis, a pleomorphic, motile, gram-negative coccus, has been isolated from the oral cavities of 32 of 60 (53.3%) children infected with human immunodeficiency virus (HIV) and 3 of 25 (12.0%) HIV-uninfected controls; the association ofL. mirabilis isolation with HIV infection is significant (P < 0.001). All children in the study, both HIV-infected children and controls, were born to HIV-infected mothers. The presence of this bacterium was not associated with clinical disease in these children. The HIV-infected children with L. mirabilis did not differ from the HIV-infected children withoutL. mirabilis in immunological status, clinical status, or systemic medications. The role of HIV infection itself or concomitant factors in the establishment of L. mirabilis in the oral cavity remains to be elucidated.


1994 ◽  
Vol 140 (1) ◽  
pp. 105-130 ◽  
Author(s):  
Giuseppe Pantaleo ◽  
Cecilia Graziosi ◽  
James F. Demarest ◽  
Oren J. Cohen ◽  
Mauro Vaccarezza ◽  
...  

Hematology ◽  
2003 ◽  
Vol 2003 (1) ◽  
pp. 294-313 ◽  
Author(s):  
Paul A. Volberding ◽  
Kelty R. Baker ◽  
Alexandra M. Levine

Abstract The advent of potent antiretroviral therapy has altered the expected natural history of human immunodeficiency virus (HIV) infection and of many previously associated opportunistic complications, including malignancies. At the same time, HIV suppression hasn’t affected all of these complications equally and the longer expected survival of infected patients may allow the development of newer complications. Additionally, the use of potent antiretroviral combination therapy may itself lead to hematological toxicities. Together these changes affect the consultation role of the hematology-oncology specialist in comprehensive HIV care and demand ongoing education. In Section I, Dr. Paul Volberding reviews the biology of antiretroviral drug development and the progression in discovering new agents as the viral life cycle is further elucidated. He briefly summarizes the process of combining agents to achieve the degree of viral suppression required for long-term clinical benefit. In Section II, Dr. Kelty Baker reviews the effects of HIV and its therapy on hematologic dyscrasia and clotting disorders. She summarizes how therapy may decrease certain previously common manifestations of HIV disease while adding new problems likely to result in referral to the hematologist. In addition, she addresses the role of secondary infections, such as parvovirus, in this spectrum of disorders. In Section III, Dr. Alexandra Levine discusses the still challenging aspects of HIV associated non-Hodgkin’s lymphoma and the association between HIV infection and Hodgkin’s disease. She addresses current controversies in the pathogenesis of HIV related lymphomas and summarizes a number of recent trials of combination chemotherapy, with or without monoclonal antibodies, in their management. Additionally, she reviews the complex relationship of HIV disease with multicentric Castleman’s disease and recent attempts to manage this disorder.


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