Document 0027 DOCN M9460027 TI Oropharyngeal samples for detection of Pneumocystis carinii by DNA amplification. DT 9408 AU Wakefield AE; Miller RF; Guiver LA; Hopkin JM; Department of Paediatrics, John Radcliffe Hospital, Oxford. SO Q J Med. 1993 Jun;86(6):401-6. Unique Identifier : AIDSLINE MED/94225048 AB Pneumocystis carinii pneumonia is a major complication of T-lymphocyte immune deficiency. Restriction of the disease to the alveolar spaces and failure to culture R. carinii has hindered simple diagnostic methods. We have developed a specific DNA amplification method for P. carinii and shown diagnostic sensitivity and specificity exceeding 95% for pneumocystis pneumonia when applied to bronchoscopic lavage and hypertonic saline induced sputum. We here report application of DNA amplification to simple oropharyngeal samples in 31 HIV-positive patients with respiratory illness. P. carinii-specific DNA was detected in 10 of 18 (56%) patients with pneumocystis pneumonia by ethidium bromide stained gels and 14 of 18 (78%) patients by the more sensitive technique of oligoblotting. P. carinii DNA was not detected in samples from 13 patients with other respiratory diagnoses. An oropharyngeal sample offers a simple specimen for detecting P. carinii by DNA amplification; refinements of technique and calibration may allow its development for accurate diagnostic and epidemiological work. DE AIDS-Related Opportunistic Infections/*DIAGNOSIS/DRUG THERAPY Bronchoalveolar Lavage Fluid/MICROBIOLOGY *Gene Amplification Human HIV Seropositivity HIV-1 Oropharynx/*MICROBIOLOGY Pneumocystis carinii/GENETICS/*ISOLATION & PURIF Pneumonia, Pneumocystis carinii/*DIAGNOSIS/DRUG THERAPY Sensitivity and Specificity Support, Non-U.S. Gov't JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).