STUDY OBJECTIVE: To determine if cell wall-deficient forms (CWDF) of mycobacteria can be grown in culture of blood from subjects with sarcoidosis. DESIGN: A special multicenter study of sarcoidosis (A Case Control Etiologic Study of Sarcoidosis), supported by the National Heart, Lung, and Blood Institute. PATIENTS AND CONTROL SUBJECTS: PATIENTS AND CONTROL SUBJECTS were recruited at 10 institutions in the United States. Control subjects (controls) were of the same gender and race, and within 5 years of age as matching patients with sarcoidosis (cases). RESULTS: Cultures were incubated from 347 blood specimens (197 cases, 150 controls). Two investigators trained to recognize CWDF mycobacteria examined material obtained from culture tubes after 3 weeks. Structures thought to be CWDF were seen with equal frequency in cases (38%) and controls (41%). Thirty-nine percent of cases and 37% of controls were read as negative for CWDF. CONCLUSION: This study fails to confirm earlier reports that CWDF mycobacteria can be grown from the blood of patients with sarcoidosis, but not from control subjects.
STUDY OBJECTIVE: To determine if cell wall-deficient forms (CWDF) of mycobacteria can be grown in culture of blood from subjects with sarcoidosis. DESIGN: A special multicenter study of sarcoidosis (A Case Control Etiologic Study of Sarcoidosis), supported by the National Heart, Lung, and Blood Institute. PATIENTS AND CONTROL SUBJECTS:PATIENTS AND CONTROL SUBJECTS were recruited at 10 institutions in the United States. Control subjects (controls) were of the same gender and race, and within 5 years of age as matching patients with sarcoidosis (cases). RESULTS: Cultures were incubated from 347 blood specimens (197 cases, 150 controls). Two investigators trained to recognize CWDF mycobacteria examined material obtained from culture tubes after 3 weeks. Structures thought to be CWDF were seen with equal frequency in cases (38%) and controls (41%). Thirty-nine percent of cases and 37% of controls were read as negative for CWDF. CONCLUSION: This study fails to confirm earlier reports that CWDF mycobacteria can be grown from the blood of patients with sarcoidosis, but not from control subjects.
Authors: Isaac Brownell; Francisco Ramírez-Valle; Miguel Sanchez; Stephen Prystowsky Journal: Am J Respir Cell Mol Biol Date: 2011-06-09 Impact factor: 6.914
Authors: M I Gabrilovich; J Walrath; J van Lunteren; D Nethery; M Seifu; J A Kern; C V Harding; L Tuscano; H Lee; S D Williams; W Mackay; J F Tomashefski; R F Silver Journal: Clin Exp Immunol Date: 2013-09 Impact factor: 4.330