Hippokratia
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Urate through NOD-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome-dependent caspase-1 activation stimulates macrophages to secrete inteleukin-1β (IL-1β). Urate also enhances adaptive immunity indirectly through its effect on antigen presenting cells. In this study, the direct effect of urate on isolated primary human T-cells was evaluated. ⋯ Urate, a well defined danger signal, stimulates directly human T-cells in a NLRP3 infmmasomela-dependent way. The subsequent IL-1β secretion could enhance inflammation, whereas expansion of T-cell clones could facilitate a subsequent adaptive immune response. Hippokratia 2015, 19 (1): 41-46.
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Case Reports
Synchronous adenocarcinoma and echinococcosis in the same ovary: a rare clinical entity.
Serous adenocarcinoma is the most common subtype of ovarian carcinoma, while ovarian echinococcosis is a rare disease of the female genital system. The simultaneous presence of adenocarcinoma and echinococcosis in the same ovary is extremely rare and little data exist regarding diagnosis and treatment approach. ⋯ Ovarian hydatid cyst is extremely rare, but should be suspected in patients with echinococcosis in other organs and those coming from endemic areas. Moreover, the disease could mimic ovarian cancer, as there are no specific symptoms and clinical signs. The coexistence of these two diseases in the same ovary, although rare, is possible. It seems that the presence of the hydatid cyst does not change the treatment approach of the malignancy so that surgery with neoadjuvant or adjuvant chemotherapy, according to the present guidelines, should be administered. Hippokratia 2015, 19 (1): 89-91.
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West Nile virus (WNV) causes to humans a variety of symptoms, from asymptomatic infection to severe neuroinvasive disease. In a previous study, it was shown that WNV IgM antibodies persisted in three of 26 (12%) patients, nine months after onset of the symptoms. The aim of the present study was to test 10 of these patients, three years post-infection for probable persistence of IgM antibodies and to investigate their IgG antibody patterns. ⋯ WNV IgM antibodies persist for more than three years in 12% of patients with WNV infection, while WNV IgG antibodies persist and even increase their levels, regardless the involvement of the nervous system, suggesting that the immune response in the symptomatic WNV infections is strong and long-lasting. Hippokratia 2015, 19 (1): 34-36.
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Hypercalcemia and severe osteolytic lesions are rare complications of acute lymphoblastic leukemia (ALL) in childhood, and those cases share similar clinical features. Similarly, hypercalcemia is a rare feature in adult ALL. Here, we report an uncommon case of an adult patient with relapsed precursor B ALL (pre-B ALL) who developed multiple osteolytic lesions and hypercalcemia. ⋯ Two possible mechanisms have been suggested for hypercalcemia in hematological malignancy, either the leukemic infiltration or the paraneoplastic production of a variety of humoral factors and proinflammatory cytokines. However, hypercalcemia and severe osteolytic lesions are rare features in ALL adult patients and their combination may be indicator of poor prognosis. Hippokratia 2015, 19 (1): 78-81.