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Macrophage Cholesterol Depletion and Its Effect on the Phagocytosis of Cryptococcus neoformans
Published on: December 19, 2014
Overview: cryptococcosis in the patient with AIDS
1Evans Memorial Department of Clinical Research, University Hospital, Boston, MA.
Abstract:
Cryptococcosis is currently the most common life threatening mycoses found in patients with the acquired immunodeficiency syndrome (AIDS). Extrapulmonary involvement is most frequently seen, especially in the central nervous system and skin. Clinical findings are non-specific, even in patients with meningitis. Threshold for diagnosis of this infection should be low, with serum cryptococcal antigens, blood, urine and sputum cultures for Cryptococcus neoformans performed in febrile AIDS patients. Lumbar puncture should also be performed if unexplained headaches are included in a patient's complaints. There is currently no consensus for the most appropriate treatment strategy and the role of oral azoles versus amphotericin B or amphotericin B with flucytosine remains a serious question in need of further controlled studies. Patients eligible for multicentered trials should be encouraged to participate. Therapy for others should be individualized. This review will address some of these issues.
Insights
Cryptococcosis is a life-threatening fungal infection common in AIDS patients, often affecting the central nervous system. Early diagnosis and individualized treatment are crucial due to non-specific symptoms and unclear optimal therapeutic strategies.
Area of Science:
- Mycology
- Infectious Diseases
- Immunocompromised Hosts
Background:
- Cryptococcosis is the most common life-threatening fungal infection in patients with acquired immunodeficiency syndrome (AIDS).
- Extrapulmonary involvement, particularly in the central nervous system and skin, is frequent.
- Clinical presentations are often non-specific, complicating early diagnosis, even in cases of meningitis.
Purpose of the Study:
- To review the diagnosis and treatment of cryptococcosis in patients with AIDS.
- To highlight the challenges in managing this opportunistic infection.
- To discuss current therapeutic options and areas needing further research.
Main Methods:
- Review of current literature on cryptococcosis in AIDS patients.
- Discussion of diagnostic approaches, including serological markers and cultures.
- Analysis of treatment strategies, including antifungal agents.
Main Results:
- Diagnosis requires a low threshold, utilizing serum cryptococcal antigen, blood, urine, and sputum cultures in febrile AIDS patients.
- Lumbar puncture is recommended for unexplained headaches.
- Optimal treatment strategies remain debated, with ongoing questions regarding oral azoles versus amphotericin B-based regimens.
Conclusions:
- Early and thorough diagnostic evaluation is essential for cryptococcosis in AIDS patients.
- Individualized therapy is recommended in the absence of definitive treatment consensus.
- Participation in multicenter trials is encouraged to establish optimal treatment guidelines.
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