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Title	Claps	Level	Year	L/Y
Revisiting Human IL-12R&bgr;1 Deficiency: A Survey of 141 Patients From 30 Countries 122 auth. Ludovic de Beaucoudrey, A. Samarina, J. Bustamante, A. Cobat, S. Boisson-Dupuis, J. Feinberg, S. Al‐Muhsen, L. Jannière, Yoann Rose, Maylis de Suremain, X. Kong, O. Filipe-santos, A. Chapgier, C. Picard, A. Fischer, ... F. Doğu, A. Ikinciogulları, G. Tanır, Sami Al-Hajjar, S. Al-Jumaah, H. Frayha, Z. Alsum, Sulaiman Alajaji, Abdullah A. Alangari, A. Al-ghonaium, P. Adimi, D. Mansouri, I. Ben‐Mustapha, Judith Yancoski, B. Garty, C. Rodríguez-Gallego, I. Caragol, N. Kutukculer, D. Kumararatne, Smita Y. Patel, R. Doffinger, A. Exley, O. Jeppsson, J. Reichenbach, D. Nadal, Yaryna Boyko, B. Pietrucha, S. Anderson, M. Levin, L. Schandené, K. Schepers, A. Efira, F. Mascart, M. Matsuoka, T. Sakai, C. Siegrist, K. Frecerova, Renate Blüetters-Sawatzki, J. Bernhöft, J. Freihorst, U. Baumann, D. Richter, F. Haerynck, F. De Baets, V. Novelli, D. Lammas, C. Vermylen, D. Tuerlinckx, C. Nieuwhof, M. Pac, W. H. Haas, I. Müller-Fleckenstein, B. Fleckenstein, Jacob Levy, Revathi Raj, A. Cohen, D. Lewis, S. Holland, Kuender D Yang, Xiaochuan Wang, Xiaohong Wang, Liping Jiang, Xi-qiang Yang, Chao-min Zhu, Yuanyuan Xie, P. Lee, Koon-wing Chan, Tong-Xin Chen, G. Castro, Ivelisse Natera, A. Codoceo, A. King, L. Bezrodnik, Daniela Di Giovani, M. Gaillard, D. de Moraes-Vasconcelos, A. Grumach, A. J. da Silva Duarte, Ruth Aldana, F. Espinosa-Rosales, M. Bejaoui, A. Bousfiha, J. E. Baghdadi, N. Ozbek, G. Aksu, M. Keser, A. Somer, N. Hatipoğlu, Ç. Aydoğmuş, S. Asilsoy, Y. Camcıoğlu, S. Gülle, T. Ozgur, M. Ozen, M. Oleastro, A. Bernasconi, S. Mamishi, N. Parvaneh, S. Rosenzweig, R. Barbouche, S. Pedraza, Y. Lau, Mohammad S. Ehlayel, C. Fieschi, L. Abel, O. Sanal, J. Casanova Interleukin-12 receptor &bgr;1 (IL-12R&bgr;1) deficiency is the most common form of Mendelian susceptibility to mycobacterial disease (MSMD). We undertook an international survey of 141 patients from 102 kindreds in 30 countries. Among 102 probands,… Interleukin-12 receptor &bgr;1 (IL-12R&bgr;1) deficiency is the most common form of Mendelian susceptibility to mycobacterial disease (MSMD). We undertook an international survey of 141 patients from 102 kindreds in 30 countries. Among 102 probands, the first infection occurred at a mean age of 2.4 years. In 78 patients, this infection was caused by Bacille Calmette-Guérin (BCG; n = 65), environmental mycobacteria (EM; also known as atypical or nontuberculous mycobacteria) (n = 9) or Mycobacterium tuberculosis (n = 4). Twenty-two of the remaining 24 probands initially presented with nontyphoidal, extraintestinal salmonellosis. Twenty of the 29 genetically affected sibs displayed clinical signs (69%); however 8 remained asymptomatic (27%). Nine nongenotyped sibs with symptoms died. Recurrent BCG infection was diagnosed in 15 cases, recurrent EM in 3 cases, recurrent salmonellosis in 22 patients. Ninety of the 132 symptomatic patients had infections with a single microorganism. Multiple infections were diagnosed in 40 cases, with combined mycobacteriosis and salmonellosis in 36 individuals. BCG disease strongly protected against subsequent EM disease (p = 0.00008). Various other infectious diseases occurred, albeit each rarely, yet candidiasis was reported in 33 of the patients (23%). Ninety-nine patients (70%) survived, with a mean age at last follow-up visit of 12.7 years ± 9.8 years (range, 0.5-46.4 yr). IL-12R&bgr;1 deficiency is characterized by childhood-onset mycobacteriosis and salmonellosis, rare recurrences of mycobacterial disease, and more frequent recurrence of salmonellosis. The condition has higher clinical penetrance, broader susceptibility to infections, and less favorable outcome than previously thought. Abbreviations: BCG = Bacille Calmette-Guérin, CI = confidence interval, EBV-B cell lines = Epstein-Barr virus-transformed lymphoblastoid cell lines, ELISA = enzyme-linked immunosorbent assay, EM= environmental mycobacteria (nontuberculous mycobacteria), FBS = fetal bovine serum, FD = fibronectin domain, IFNGR = interferon-&ggr; receptor, IL12B = interleukin-12B, IL-12R&bgr;1 = interleukin-12 receptor beta 1 chain, MSMD = Mendelian susceptibility tomycobacterial disease, NEMO = nuclear factor-&kgr;B essential modulator, PBS = phosphate-buffered saline, PCR = polymerase chain reaction, PHA = phytohemagglutinin, PR = present report, STAT1 = Signal transducer and activator of transcription 1. Published in Medicine	80	8	2010