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Number of items: 62.

ArunKumar, GaneshPrasad ; Tatarinova, Tatiana V. ; Duty, Jeff ; Rollo, Debra ; Syama, Adhikarla ; Arun, Varatharajan Santhakumari ; Kavitha, Valampuri John ; Triska, Petr ; Greenspan, Bennett ; Wells, Spencer R. ; Pitchappan, Ramasamy ; UNSPECIFIED (2015) Genome-wide signatures of male-mediated migration shaping the Indian gene pool Journal of Human Genetics, 60 (9). pp. 493-499. ISSN 1434-5161

Pitchappan, Ramasamy M. (2015) Not all the infected develop the disease — a “lotus and cactus” model Infection, Genetics and Evolution . ISSN 1567-1348

Arunkumar, GaneshPrasad ; Wei, Lan-Hai ; Kavitha, Valampuri John ; Syama, Adhikarla ; Arun, Varatharajan Santhakumari ; Sathua, Surendra ; Sahoo, Raghunath ; Balakrishnan, R. ; Riba, Tomo ; Chakravarthy, Jharna ; Chaudhury, Bapukan ; Panda, Premanada ; Das, Pradipta K. ; Nayak, Prasanna K. ; Li, Hui ; Pitchappan, Ramasamy (2015) A late neolithic expansion of Y chromosomal haplogroup O2a1-M95 from east to west Journal of Systematics and Evolution, 53 (6). pp. 546-560. ISSN 1674-4918

Elhaik, Eran ; Tatarinova, Tatiana ; Chebotarev, Dmitri ; Piras, Ignazio S. ; Maria Calò, Carla ; De Montis, Antonella ; Atzori, Manuela ; Marini, Monica ; Tofanelli, Sergio ; Francalacci, Paolo ; Pagani, Luca ; Tyler-Smith, Chris ; Pitchappan, Ramasamy ; UNSPECIFIED (2014) Geographic population structure analysis of worldwide human populations infers their biogeographical origins Nature Communications, 5 . Article ID: 3513. ISSN 2041-1723

Basu Mallick, Chandana ; Iliescu, Florin Mircea ; Mols, Mart ; Hill, Sarah ; Tamang, Rakesh ; Chaubey, Gyaneshwer ; Goto, Rie ; Ho, Simon Y. W. ; Gallego Romero, Irene ; Crivellaro, Federica ; Pitchappan, Ramasamy (2013) The light skin allele of SLC24A5 in South Asians and Europeans shares identity by descent PLoS Genetics, 9 (11). Article ID e1003912. ISSN 1553-7390

ArunKumar, GaneshPrasad ; Soria-Hernanz, David F. ; Kavitha, Valampuri John ; Arun, Varatharajan Santhakumari ; Syama, Adhikarla ; Ashokan, Kumaran Samy ; Gandhirajan, Kavandanpatti Thangaraj ; Vijayakumar, Koothapuli ; Narayanan, Muthuswamy ; Jayalakshmi, Mariakuttikan ; Pitchappan, Ramasamy (2012) Population differentiation of southern Indian male lineages correlates with agricultural expansions predating the caste system PLoS One, 7 (11). Article ID e50269. ISSN 1932-6203

Javed, Asif ; Mele, Marta ; Pybus, Marc ; Zalloua, Pierre ; Haber, Marc ; Comas, David ; Netea, Mihai G. ; Balanovsky, Oleg ; Balanovska, Elena ; Jin, Li ; Yang, Yajun ; ArunKumar, GaneshPrasad ; Pitchappan, Ramasamy ; UNSPECIFIED (2012) Recombination networks as genetic markers in a human variation study of the old world Human Genetics, 131 (4). pp. 601-613. ISSN 0340-6717

Gallego Romero, I. ; Basu Mallick, C. ; Liebert, A. ; Crivellaro, F. ; Chaubey, G. ; Itan, Y. ; Metspalu, M. ; Eaaswarkhanth, M. ; Pitchappan, R. ; UNSPECIFIED (2012) Herders of Indian and European cattle share their predominant allele for lactase persistence Molecular Biology and Evolution, 29 (1). pp. 249-260. ISSN 0737-4038

Mele, M. ; Javed, A. ; Pybus, M. ; Zalloua, P. ; Haber, M. ; Comas, D. ; Netea, M. G. ; Balanovsky, O. ; Balanovska, E. ; Jin, L. ; Yang, Y. ; Pitchappan, R. M. ; UNSPECIFIED (2012) Recombination gives a new insight in the effective population size and the history of the old world human populations Molecular Biology and Evolution, 29 (1). pp. 25-30. ISSN 0737-4038

Zhadanov, Sergey I. ; Dulik, Matthew C. ; Markley, Michael ; Jennings, George W. ; Gaieski, Jill B. ; Elias, George ; Schurr, Theodore G. ; Pitchappan, R. M. ; et., al (2010) Genetic heritage and native identity of the Seaconke Wampanoag tribe of massachusetts American Journal of Physical Anthropology, 142 (4). pp. 579-589. ISSN 0002-9483

Norman, Paul J. ; Abi-Rached, Laurent ; Gendzekhadze, Ketevan ; Hammond, John A. ; Moesta, Achim K. ; Sharma, Deepti ; Graef, Thorsten ; McQueen, Karina L. ; Guethlein, Lisbeth A. ; Carrington, Christine V. F. ; Chandanayingyong, Dasdayanee ; Chang, Yih-Hsin ; Crespi, Catalina ; Saruhan-Direskeneli, Guher ; Hameed, Kamran ; Kamkamidze, Giorgi ; Koram, Kwadwo A. ; Layrisse, Zulay ; Matamoros, Nuria ; Mila, Joan ; Park, Myoung Hee ; Pitchappan, Ramasamy M. ; Dan Ramdath, D. ; Shiau, Ming-Yuh ; Stephens, Henry A. F. ; Struik, Siske ; Tyan, Dolly ; Verity, David H. ; Vaughan, Robert W. ; Davis, Ronald W. ; Fraser, Patricia A. ; Riley, Eleanor M. ; Ronaghi, Mostafa ; Parham, Peter (2009) Meiotic recombination generates rich diversity in NK cell receptor genes, alleles, and haplotypes Genome Research, 19 . pp. 757-769. ISSN 1088-9051

Behar, Doron M. ; Blue-Smith, Jason ; Soria-Hernanz, David F. ; Tzur, Shay ; Hadid, Yarin ; Bormans, Concetta ; Moen, Alexander ; Tyler-Smith, Chris ; Quintana-Murci, Lluis ; Spencer Wells, R. ; Pitchappan, R. M. (2008) A novel 154-bp deletion in the human mitochondrial DNA control region in healthy individuals Human Mutation, 29 (12). pp. 1387-1391. ISSN 1059-7794

Behar, Doron M. ; Villems, Richard ; Soodyall, Himla ; Blue-Smith, Jason ; Pereira, Luisa ; Metspalu, Ene ; Scozzari, Rosaria ; Makkan, Heeran ; Tzur, Shay ; Comas, David ; Bertranpetit, Jaume ; Quintana-Murci, Lluis ; Tyler-Smith, Chris ; Spencer Wells, R. ; Rosset, Saharon ; Pitchappan, R. M. ; et., al (2008) The dawn of human matrilineal diversity The American Journal of Human Genetics, 82 (5). pp. 1130-1140. ISSN 0002-9297

Zalloua, Pierre A. ; Xue, Yali ; Khalife, Jade ; Makhoul, Nadine ; Debiane, Labib ; Platt, Daniel E. ; Royyuru, Ajay K. ; Herrera, Rene J. ; Soria Hernanz, David F. ; Blue-Smith, Jason ; Spencer Wells, R. ; Comas, David ; Bertranpetit, Jaume ; Tyler-Smith, Chris ; Pitchappan, R. M. ; et., al (2008) Y-Chromosomal diversity in Lebanon is structured by recent historical events The American Journal of Human Genetics, 82 (4). pp. 873-882. ISSN 0002-9297

Rajalingam, Raja ; Du, Zeying ; Meenagh, Ashley ; Luo, Lihui ; Kavitha, Valampuri John ; Pavithra-Arulvani, Rajamanickam ; Vidhyalakshmi, Arumugam ; Sharma, Surendra K. ; Balazs, Ivan ; Reed, Elaine F. ; Pitchappan, Ramasamy M. ; Middleton, Derek (2008) Distinct diversity of KIR genes in three Southern Indian populations: comparison with world populations revealed a link between KIR gene content and pre-historic human migrations Immunogenetics, 60 (5). pp. 207-217. ISSN 0093-7711

Pitchappan, R. M. ; Kavitha, V. J. ; Jayalakshmi, M. (2008) HLA genomic diversity of India and its implications in HIV pandemic International Journal of Human Genetics, 8 (1-2). pp. 143-153. ISSN 0972-3757

Behar, Doron M. ; Rosset, Saharon ; Blue-Smith, Jason ; Balanovsky, Oleg ; Tzur, Shay ; Comas, David ; John Mitchell, R. ; Quintana-Murci, Lluis ; Tyler-Smith, Chris ; Spencer Wells, R. ; Pitchappan, R. M. ; et., al (2007) The genographic project public participation mitochondrial DNA database PLoS Genetics, 3 (6). e104_1-e104_13. ISSN 1553-7390

Norman, Paul J. ; Abi-Rached, Laurent ; Gendzekhadze, Ketevan ; Korbel, Daniel ; Gleimer, Michael ; Rowley, Don ; Bruno, Dan ; Carrington, Christine V. F. ; Chandanayingyong, Dasdayanee ; Chang, Yih-Hsin ; Crespí, Catalina ; Saruhan-Direskeneli, Güher ; Fraser, Patricia A. ; Hameed, Kamran ; Kamkamidze, Giorgi ; Koram, Kwadwo A. ; Layrisse, Zulay ; Matamoros, Nuria ; Milà, Joan ; Park, Myoung Hee ; Pitchappan, Ramasamy M. ; Dan Ramdath, D. ; Shiau, Ming-Yuh ; Stephens, Henry A. F. ; Struik, Siske ; Verity, David H. ; Vaughan, Robert W. ; Tyan, Dolly ; Davis, Ronald W. ; Riley, Eleanor M. ; Ronaghi, Mostafa ; Parham, Peter (2007) Unusual selection on the KIR3DL1/S1 natural killer cell receptor in Africans Nature Genetics, 39 . 1092 - 1099. ISSN 1061-4036

Vani, S. ; Pitchappan, R. M. (2006) Host genetics and infectious diseases in South India International Journal of Human Genetics, 6 (1). pp. 41-48. ISSN 0972-3757

Tosh, Kerrie ; Ravikumar, Muthuswamy ; Bell, Jordana Tzenova ; Meisner, Sarah ; Hill, Adrian V. S. ; Pitchappan, Ramasamy (2006) Variation in MICA and MICB genes and enhanced susceptibility to paucibacillary leprosy in South India Human Molecular Genetics, 15 (19). pp. 2880-2887. ISSN 0964-6906

Vidhyalakshmi, A. ; Shanmugalakshmi, S. ; Chandra, S. ; Vani, S. ; Kamalakannan, R. ; Mathuram, G. ; Manoharan, K. ; Mukherjee, A. ; Das, M. K. ; Pitchappan, R. M. (2004) Human leucocyte antigen matching and donor selection for sibling bone marrow transplantation in India Current Science, 87 (10). pp. 1438-1442. ISSN 0011-3891

Shankarkumar, Umapathy ; Pitchappan, Ramasamy ; Pethaperumal, Srinivasan (2004) Human leukocyte antigens in hypertrophic cardiomyopathy patients in South India Asian Cardiovascular & Thoracic Annals, 12 . pp. 107-110. ISSN 0218-4923

Shankarkumar, U. ; Sridharan, B. ; Pitchappan, R. M. (2003) HLA diversity among Nadars, a primitive Dravidian caste of South India Tissue Antigens, 62 (6). pp. 542-547. ISSN 0001-2815

Shanmugalakshmi, S. ; Dheenadhayalan, V. ; Muthuveeralakshmi, P. ; Arivarignan, G. ; Pitchappan, R. M. (2003) Mycobacterium bovis BCG scar status and HLA class II alleles influence purified protein derivative-specific T-cell receptor Vß expression in pulmonary tuberculosis patients from Southern India Infection and Immunity, 71 (8). pp. 4544-4553. ISSN 0019-9567

Shanmugalakshmi, S. ; Balakrishnan, K. ; Manoharan, K. ; Pitchappan, R. M. (2003) HLA-DRB1*, -DQB1* in Piramalai Kallars and Yadhavas, two Dravidian-speaking castes of Tamil Nadu, South India Tissue Antigens, 61 (6). pp. 451-464. ISSN 0001-2815

Shanmugalakshmi, S. ; Pitchappan, R. M. (2002) Genetic basis of tuberculosis susceptibility in India Indian journal of pediatrics, 69 (Suppl. 1). S25-S28. ISSN 0019-5456

Pitchappan, R. M. (2002) Castes, migration, immunogenetics and infectious diseases in South India Community Genetics, 5 (3). pp. 157-161. ISSN 1422-2795

Tosh, Kerrie ; Meisner, Sarah ; Ruby Siddiqui, M. ; Balakrishnan, Karuppiah ; Ghei, Satish ; Golding, Marina ; Sengupta, Utpal ; Pitchappan, Ramasamy M. ; Hill, Adrian V. S. (2002) A region of chromosome 20 is linked to leprosy susceptibility in a South Indian population The Journal of Infectious Diseases, 186 (8). pp. 1190-1193. ISSN 0022-1899

Shankarkumar, U. ; Mahendran, V. ; Pitchappan, R. M. (2002) A sensitive micro-platelet ELISA technique for screening anti-HLA antibodies Journal of Immunoassay and Immunochemistry, 23 (1). pp. 107-117. ISSN 1532-1819

Dheenadhayalan, V. ; Shanmugalakshmi, S. ; Vani, S. ; Muthuveeralakshmi, P. ; Arivarignan, G. ; Nageswari, A. D. ; Pitchappan, R. M. (2001) Association of interleukin-10 cytokine expression status with HLA non-DRB1*02 and Mycobacterium bovis BCG scar-negative status in South Indian pulmonary tuberculosis patients Infection and Immunity, 69 (9). pp. 5635-5642. ISSN 0019-9567

Spencer Wells, R. ; Yuldasheva, Nadira ; Ruzibakiev, Ruslan ; Underhill, Peter A. ; Evseeva, Irina ; Blue-Smith, Jason ; Jin, Li ; Su, Bing ; Pitchappan, Ramasamy ; Shanmugalakshmi, Sadagopal ; Balakrishnan, Karuppiah ; Read, Mark ; Pearson, Nathaniel M. ; Zerjal, Tatiana ; Webster, Matthew T. ; Zholoshvili, Irakli ; Jamarjashvili, Elena ; Gambarov, Spartak ; Nikbin, Behrouz ; Dostiev, Ashur ; Aknazarov, Ogonazar ; Zalloua, Pierre ; Tsoy, Igor ; Kitaev, Mikhail ; Mirrakhimov, Mirsaid ; Chariev, Ashir ; Bodmer, Walter F. (2001) The Eurasian Heartland: a continental perspective on Y-chromosome diversity PNAS, 98 (18). pp. 10244-10249. ISSN 0027-8424

Ruby Siddiqui, M. ; Meisner, Sarah ; Tosh, Kerrie ; Balakrishnan, Karuppiah ; Ghei, Satish ; Fisher, Simon E. ; Golding, Marina ; Shanker Narayan, Nallakandy P. ; Sitaraman, Thiagarajan ; Sengupta, Utpal ; Pitchappan, Ramasamy ; Hill, Adrian V. S. (2001) A major susceptibility locus for leprosy in India maps to chromosome 10p13 Nature Genetics, 27 . pp. 439-441. ISSN 1061-4036

Ravikumar, M. ; Dheenadhayalan, V. ; Rajaram, K. ; Shanmuga Lakshmi, S. ; Paul Kumaran, P. ; Paramasivan, C. N. ; Balakrishnan, K. ; Pitchappan, R. M. (1999) Associations of HLA-DRB1, DQB1 and DPB1 alleles with pulmonary tuberculosis in South India Tubercle and Lung Disease, 79 (5). pp. 309-317. ISSN 0962-8479

Pitchappan, R. M. (1998) Diversity and dynamics of populations and disease susceptibility Indian Journal of Human Genetics, 4 (1). pp. 13-22. ISSN 0971-6866

Pitchappan, R. M. ; Balakrishnan, K. ; Sudarsen, V. ; Brahmajothi, V. ; Mahendran, V. ; Amalraj, S. ; Santhakumari, R. ; Vijayakumar, K. ; Sivalingam, P. ; Ramasamy, S. (1997) Sociobiology and HLA genetic polymorphism in hill tribes, the Irula of the Nilgiri hills and the Malayali of the Shevroy hills, South India Human Biology, 69 (1). pp. 59-74. ISSN 0018-7143

Pitchappan, R. M. ; Agrewala, J. N. ; Dheenadhayalan, V. ; Ivanyi, J. (1997) Major histocompatibility complex restriction in tuberculosis susceptibility Journal of Biosciences, 22 (1). pp. 47-57. ISSN 0250-5991

Balakrishnan, K. ; Pitchappan, R. M. ; Suzuki, K. ; Kumar, U. S. ; Santhakumari, R. ; Tokunaga, K. (1996) HLA affinities of Iyers, a Brahmin population of Tamil Nadu, South India Human Biology, 68 (4). pp. 523-537. ISSN 0018-7143

Agrewala, Javed ; Pitchappan, Ramasamy ; Ivanyi , Juraj (1996) P517-Th clone to mycobacterial peptide (P21-40 of 16kDa) recognize peptides presented by parental alleles Human Immunology, 47 (1-2). p. 94. ISSN 0198-8859

Pitchappan, Ramasamy ; Dheenadhayalan, Veerabadran ; Ivanyi, Juraj (1996) P538-HLA DR2 alleles and haplotypes unique to India? Human Immunology, 47 (1-2). p. 99. ISSN 0198-8859

Pitchappan, R. M. ; Balakrishnan, K. ; Mahendran, V. ; Brahmajathi, V. (1995) HLA and disease susceptibility in Tamil Nadu, S. India Indian Journal of Human Genetics, 1 (1). pp. 56-62. ISSN 0971-6866

Subramanian, V. S. ; Balakrishnan, K. ; Pitchappan, R. M. ; Sekharan, P. C. ; Damodaran, C. (1994) Red cell enzymes and serum protein polymorphisms in three population groups of South India Gene geography, 8 (3). pp. 169-174. ISSN 0394-249X

Pitchappan, R. M. ; Amutha, S. ; Mahendran, V. ; Brahmajothi, V. ; Shankar Kumar, U. ; Balakrishnan, K. ; Shantha Kumari, R. ; Sashidhar, M. ; SamalRaj, ; Manuel, May ; Indra Raja, V. (1993) Frequency of HLA antibodies in South India Journal of Biosciences, 18 (3). pp. 373-380. ISSN 0250-5991

Brahmajothi, V. ; Pitchappan, R. M. ; Kakkanaiah, V. N. ; Sashidhar, M. ; Rajaram, K. ; Ramu, S. ; Palanimurugan, K. ; Paramasivan, C. N. ; Prabhakar, R. (1991) Association of pulmonary tuberculosis and HLA in South India Tubercle, 72 (2). pp. 123-132. ISSN 0041-3879

Pitchappan, R. M. ; Brahmajothi, V. ; Rajaram, K. ; Thirumalaikolundu Subramanyam, P. ; Balakrishnan, K. ; Muthuveeralakshmi, R. (1991) Spectrum of immune reactivity to mycobacterial (BCG) antigens in healthy hospital contacts in South India Tubercle, 72 (2). pp. 133-139. ISSN 0041-3879

Naik, Pradeep ; Indira, S. ; Pitchappan, R. M. ; Malati, T. (1991) Screening of HLA antibodies in maternal sera from Hyderabad Indian Journal of Clinical Biochemistry, 6 (2). pp. 119-123. ISSN 0970-1915

Pitchappan, R. M. ; Koteeswaran, A. ; Kakkaniah, V. N. ; Manickasundari, M. ; Rajaram, V. ; Muthuveeralakshmi, P. ; Mahendran, V. ; Brahmajothibai, V. (1989) HLA Bw57 and DR7 association with psoriasis vulgaris in South India Tissue Antigens, 34 (2). pp. 133-137. ISSN 0001-2815

Pitchappan, R-M. ; Kakkaniah, V-N. ; Manickasundari, M. ; Rajaram, V. ; Koteeswaran, A. (1989) Susceptibility of major groups of Tamil Nadu to diseases: 1. Psoriasis vulgaris Journal of Genetics, 68 (2). pp. 75-92. ISSN 0022-1333

Pitchappan, R. M. (1988) Founder effects explain the distribution of the HLAA1-B17 but not the absence of the A1-B8 haplotypes in India Journal of Genetics, 67 (2). pp. 101-111. ISSN 0022-1333

Manickasundari, M. ; Pitchappan, R. M. (1988) Thymus an effector organ (?) in the lizard Calotes versicolor Indian Journal of Experimental Biology, 26 (3). pp. 225-227. ISSN 0019-5189

Selvaraj, P. ; Pitchappan, R. M. (1988) Post-hatching development of the immune system of the pigeon, Columba livia Developmental & Comparative Immunology, 12 (4). pp. 879-884. ISSN 0145-305X

Manickasundari, M. ; Pitchappan, R. M. (1988) Structural, functional relationship of thymus derived cells of the lizard Developmental & Comparative Immunology, 12 (3). pp. 603-610. ISSN 0145-305X

Rajasekar, R. ; Kakkanaiah, V. N. ; Pitchappan, R. M. (1987) HLA antigens in South India: II. Selected caste groups of Tamil Nadu Tissue Antigens, 30 (3). pp. 113-118. ISSN 0001-2815

Manickasundari, M. ; Pitchappan, R. M. (1987) Characteristics of heterologous anti lizard (Calotes versicolor) thymocyte serum which identify the functions of thymus-derived cell lineage Developmental & Comparative Immunology, 11 (3). pp. 605-612. ISSN 0145-305X

Selvaraj, P. ; Pitchappan, R. M. (1985) Effect of oestradiol dipropionate on the immune system of the pigeon, Columba livia Developmental & Comparative Immunology, 9 (4). pp. 669-677. ISSN 0145-305X

Pitchappan, R. M. ; Kakkanaiah, V. N. ; Rajashekar, R. ; Arulraj, N. ; Muthukkaruppan, V. R. (1984) HLA antigens in South India: I. Major groups of Tamil Nadu Tissue Antigens, 24 (3). pp. 190-196. ISSN 0001-2815

Manickasundari, M. ; Selvaraj, P. ; Pitchappan, R. M. (1984) Studies on T-cells of the lizard, Calotes versicolor: adherent and non-adherent populations of the spleen Developmental & Comparative Immunology, 8 (2). pp. 367-374. ISSN 0145-305X

Pitchappan, R. M. (1980) On the phylogeny of splenic structure and function Developmental & Comparative Immunology, 4 . pp. 395-416. ISSN 0145-305X

Pitchappan, R. M. ; Muthukkaruppan, V. R. (1977) Analysis of the development of the lizard, Calotes versicolor. II. Histogenesis of the thymus Developmental & Comparative Immunology, 1 (3). pp. 217-229. ISSN 0145-305X

Pitchappan, R. M. ; Muthukkaruppan, V. R. (1977) Thymus-dependent lymphoid regions in the spleen of the lizard, Calotes versicolor Journal of Experimental Zoology, 199 (2). pp. 177-187. ISSN 0022-104X

Pitchappan, R. M. ; Muthukkaruppan, V. R. (1977) In vitro properties of heterologous anti-lizard thymocyte serum Proceedings of the Indian Academy of Sciences, Section B, 85 (1). pp. 1-12. ISSN 0370-0097

Pitchappan, R. M. ; Muthukkaruppan, V. R. (1977) Role of the thymus in the immune response to sheep erythrocytes in the lizard Calotes versicolor Proceedings of the Indian Academy of Sciences - Plant Sciences, 85 (1). pp. 25-33. ISSN 0253-410X

Pitchappan, R. M. ; Muthukkaruppan, V. R. (1976) Procedure for thymectomy in the lizard, Calotes versicolor Proceedings of the Indian Academy of Sciences, Section B, 84 (2). pp. 42-49. ISSN 0370-0097

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