A citation-based method for searching scientific literature

Sagiv Shifman, Michal Bronstein, Meira Sternfeld, Anne Pisanté-Shalom, Efrat Lev-Lehman, Avraham Weizman, Ilya Reznik, Baruch Spivak, Nimrod Grisaru, Leon Karp, Richard Schiffer, Moshe Kotler, Rael D Strous, Marnina Swartz-Vanetik, Haim Y Knobler, Eilat Shinar, Jacques S Beckmann, Benjamin Yakir, Neil Risch, Naomi B Zak, Ariel Darvasi. Am J Hum Genet 2002
Times Cited: 539







List of co-cited articles
682 articles co-cited >1



Times Cited
  Times     Co-cited
Similarity


Effect of COMT Val108/158 Met genotype on frontal lobe function and risk for schizophrenia.
M F Egan, T E Goldberg, B S Kolachana, J H Callicott, C M Mazzanti, R E Straub, D Goldman, D R Weinberger. Proc Natl Acad Sci U S A 2001
31

Functional analysis of genetic variation in catechol-O-methyltransferase (COMT): effects on mRNA, protein, and enzyme activity in postmortem human brain.
Jingshan Chen, Barbara K Lipska, Nader Halim, Quang D Ma, Mitsuyuki Matsumoto, Samer Melhem, Bhaskar S Kolachana, Thomas M Hyde, Mary M Herman, Jose Apud,[...]. Am J Hum Genet 2004
25

A haplotype implicated in schizophrenia susceptibility is associated with reduced COMT expression in human brain.
Nicholas J Bray, Paul R Buckland, Nigel M Williams, Hywel J Williams, Nadine Norton, Michael J Owen, Michael C O'Donovan. Am J Hum Genet 2003
275
23



Catechol-O-methyltransferase gene Val/Met functional polymorphism and risk of schizophrenia: a large-scale association study plus meta-analysis.
Jin-Bo Fan, Chang-Shun Zhang, Niu-Fan Gu, Xing-Wang Li, Wei-Wei Sun, Hong-Yan Wang, Guo-Yin Feng, David St Clair, Lin He. Biol Psychiatry 2005
188
15

Genetic basis for individual variations in pain perception and the development of a chronic pain condition.
Luda Diatchenko, Gary D Slade, Andrea G Nackley, Konakporn Bhalang, Asgeir Sigurdsson, Inna Belfer, David Goldman, Ke Xu, Svetlana A Shabalina, Dmitry Shagin,[...]. Hum Mol Genet 2005
831
14

Haploview: analysis and visualization of LD and haplotype maps.
J C Barrett, B Fry, J Maller, M J Daly. Bioinformatics 2005
13

Meta-analysis of association between genetic variants in COMT and schizophrenia: an update.
Tomo Okochi, Masashi Ikeda, Taro Kishi, Kunihiro Kawashima, Yoko Kinoshita, Tsuyoshi Kitajima, Yoshio Yamanouchi, Makoto Tomita, Toshiya Inada, Norio Ozaki,[...]. Schizophr Res 2009
98
13


Human catechol-O-methyltransferase haplotypes modulate protein expression by altering mRNA secondary structure.
A G Nackley, S A Shabalina, I E Tchivileva, K Satterfield, O Korchynskyi, S S Makarov, W Maixner, L Diatchenko. Science 2006
625
12


Systematic meta-analyses and field synopsis of genetic association studies in schizophrenia: the SzGene database.
Nicole C Allen, Sachin Bagade, Matthew B McQueen, John P A Ioannidis, Fotini K Kavvoura, Muin J Khoury, Rudolph E Tanzi, Lars Bertram. Nat Genet 2008
781
11


Catechol-o-methyltransferase, cognition, and psychosis: Val158Met and beyond.
Elizabeth M Tunbridge, Paul J Harrison, Daniel R Weinberger. Biol Psychiatry 2006
521
10

22q11.2 microdeletions: linking DNA structural variation to brain dysfunction and schizophrenia.
Maria Karayiorgou, Tony J Simon, Joseph A Gogos. Nat Rev Neurosci 2010
301
9

High rates of schizophrenia in adults with velo-cardio-facial syndrome.
K C Murphy, L A Jones, M J Owen. Arch Gen Psychiatry 1999
743
9

Common polygenic variation contributes to risk of schizophrenia and bipolar disorder.
Shaun M Purcell, Naomi R Wray, Jennifer L Stone, Peter M Visscher, Michael C O'Donovan, Patrick F Sullivan, Pamela Sklar. Nature 2009
9

Association studies of catechol-O-methyltransferase (COMT) gene with schizophrenia and response to antipsychotic treatment.
Meenal Gupta, Pallav Bhatnagar, Sandeep Grover, Harpreet Kaur, Ruchi Baghel, Yasha Bhasin, Chitra Chauhan, Binuja Verma, Vallikiran Manduva, Odity Mukherjee,[...]. Pharmacogenomics 2009
56
16

Neurocognitive correlates of the COMT Val(158)Met polymorphism in chronic schizophrenia.
Robert M Bilder, Jan Volavka, Pál Czobor, Anil K Malhotra, James L Kennedy, Xingqun Ni, Robert S Goldman, Matthew J Hoptman, Brian Sheitman, Jean-Pierre Lindenmayer,[...]. Biol Psychiatry 2002
263
8

Genomic organization of the human catechol O-methyltransferase gene and its expression from two distinct promoters.
J Tenhunen, M Salminen, K Lundström, T Kiviluoto, R Savolainen, I Ulmanen. Eur J Biochem 1994
280
8

COMT val158met genotype affects mu-opioid neurotransmitter responses to a pain stressor.
Jon-Kar Zubieta, Mary M Heitzeg, Yolanda R Smith, Joshua A Bueller, Ke Xu, Yanjun Xu, Robert A Koeppe, Christian S Stohler, David Goldman. Science 2003
805
8


Is COMT a susceptibility gene for schizophrenia?
Hywel J Williams, Michael J Owen, Michael C O'Donovan. Schizophr Bull 2007
112
8

Schizophrenia as a complex trait: evidence from a meta-analysis of twin studies.
Patrick F Sullivan, Kenneth S Kendler, Michael C Neale. Arch Gen Psychiatry 2003
8

COMT: a common susceptibility gene in bipolar disorder and schizophrenia.
Sagiv Shifman, Michal Bronstein, Meira Sternfeld, Anne Pisanté, Avraham Weizman, Ilya Reznik, Baruch Spivak, Nimrod Grisaru, Leon Karp, Richard Schiffer,[...]. Am J Med Genet B Neuropsychiatr Genet 2004
126
8

Impact of complex genetic variation in COMT on human brain function.
A Meyer-Lindenberg, T Nichols, J H Callicott, J Ding, B Kolachana, J Buckholtz, V S Mattay, M Egan, D R Weinberger. Mol Psychiatry 2006
252
7

Catechol-O-methyltransferase-deficient mice exhibit sexually dimorphic changes in catecholamine levels and behavior.
J A Gogos, M Morgan, V Luine, M Santha, S Ogawa, D Pfaff, M Karayiorgou. Proc Natl Acad Sci U S A 1998
662
7


COMT genotype predicts longitudinal cognitive decline and psychosis in 22q11.2 deletion syndrome.
Doron Gothelf, Stephan Eliez, Tracy Thompson, Christine Hinard, Lauren Penniman, Carl Feinstein, Hower Kwon, Shuting Jin, Booil Jo, Stylianos E Antonarakis,[...]. Nat Neurosci 2005
254
7

Genome scan meta-analysis of schizophrenia and bipolar disorder, part II: Schizophrenia.
Cathryn M Lewis, Douglas F Levinson, Lesley H Wise, Lynn E DeLisi, Richard E Straub, Iiris Hovatta, Nigel M Williams, Sibylle G Schwab, Ann E Pulver, Stephen V Faraone,[...]. Am J Hum Genet 2003
875
7


Heterozygosity at catechol-O-methyltransferase Val158Met and schizophrenia: new data and meta-analysis.
Javier Costas, Julio Sanjuán, Ramón Ramos-Ríos, Eduardo Paz, Santiago Agra, José Luis Ivorra, Mario Páramo, Julio Brenlla, Manuel Arrojo. J Psychiatr Res 2011
47
14

Executive subprocesses in working memory: relationship to catechol-O-methyltransferase Val158Met genotype and schizophrenia.
Terry E Goldberg, Michael F Egan, Tonya Gscheidle, Richard Coppola, Thomas Weickert, Bhaskar S Kolachana, David Goldman, Daniel R Weinberger. Arch Gen Psychiatry 2003
480
6

The catechol-O-methyltransferase polymorphism: relations to the tonic-phasic dopamine hypothesis and neuropsychiatric phenotypes.
Robert M Bilder, Jan Volavka, Herbert M Lachman, Anthony A Grace. Neuropsychopharmacology 2004
552
6

Identification of sequence variants and analysis of the role of the catechol-O-methyl-transferase gene in schizophrenia susceptibility.
M Karayiorgou, J A Gogos, B L Galke, P S Wolyniec, G Nestadt, S E Antonarakis, H H Kazazian, D E Housman, A E Pulver. Biol Psychiatry 1998
80
7


Homicidal behavior in schizophrenia associated with a genetic polymorphism determining low catechol O-methyltransferase (COMT) activity.
M Kotler, P Barak, H Cohen, I E Averbuch, A Grinshpoon, I Gritsenko, L Nemanov, R P Ebstein. Am J Med Genet 1999
126
6


A functional polymorphism in the COMT gene and performance on a test of prefrontal cognition.
Anil K Malhotra, Lisa J Kestler, Chiara Mazzanti, John A Bates, Terry Goldberg, David Goldman. Am J Psychiatry 2002
447
6

Common variants conferring risk of schizophrenia.
Hreinn Stefansson, Roel A Ophoff, Stacy Steinberg, Ole A Andreassen, Sven Cichon, Dan Rujescu, Thomas Werge, Olli P H Pietiläinen, Ole Mors, Preben B Mortensen,[...]. Nature 2009
6

The positive and negative syndrome scale (PANSS) for schizophrenia.
S R Kay, A Fiszbein, L A Opler. Schizophr Bull 1987
6

Association between Val108/158 Met polymorphism of the COMT gene and schizophrenia.
Ikwunga Wonodi, O Colin Stine, Braxton D Mitchell, Robert W Buchanan, Gunvant K Thaker. Am J Med Genet B Neuropsychiatr Genet 2003
72
8

Association of Ala72Ser polymorphism with COMT enzyme activity and the risk of schizophrenia in Koreans.
Seong-Gene Lee, Yeonho Joo, Byungsu Kim, Seockhoon Chung, Hie-Lim Kim, Inchul Lee, Boyoul Choi, Changyoon Kim, Kyuyoung Song. Hum Genet 2005
61
9


Meta-analysis of the cognitive effects of the catechol-O-methyltransferase gene Val158/108Met polymorphism.
Jennifer H Barnett, Linda Scoriels, Marcus R Munafò. Biol Psychiatry 2008
273
5

Human catechol-O-methyltransferase: cloning and expression of the membrane-associated form.
B Bertocci, V Miggiano, M Da Prada, Z Dembic, H W Lahm, P Malherbe. Proc Natl Acad Sci U S A 1991
189
5

COMT haplotypes suggest P2 promoter region relevance for schizophrenia.
M A Palmatier, A J Pakstis, W Speed, P Paschou, D Goldman, A Odunsi, F Okonofua, S Kajuna, N Karoma, S Kungulilo,[...]. Mol Psychiatry 2004
57
8

Association between a common haplotype in the COMT gene region and psychiatric disorders in individuals with 22q11.2DS.
Elena Michaelovsky, Doron Gothelf, Michael Korostishevsky, Amos Frisch, Merav Burg, Miri Carmel, Tamar Steinberg, Dov Inbar, Alan Apter, Abraham Weizman. Int J Neuropsychopharmacol 2008
40
12

The association between the Val158Met polymorphism of the catechol-O-methyl transferase gene and morphological abnormalities of the brain in chronic schizophrenia.
Takashi Ohnishi, Ryota Hashimoto, Takeyuki Mori, Kiyotaka Nemoto, Yoshiya Moriguchi, Hidehiro Iida, Hiroko Noguchi, Tetsuo Nakabayashi, Hiroaki Hori, Mayu Ohmori,[...]. Brain 2006
121
5


Co-cited is the co-citation frequency, indicating how many articles cite the article together with the query article. Similarity is the co-citation as percentage of the times cited of the query article or the article in the search results, whichever is the lowest. These numbers are calculated for the last 100 citations when articles are cited more than 100 times.