• 9722 Citations
1987 …2019
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Research Output 1987 2019

2003
65 Citations (Scopus)

Genetics of obsessive-compulsive disorders: New findings and challenges

Grados, M. A., Walkup, J. & Walford, S., Jan 1 2003, In : Brain and Development. 25, SUPPL. 1

Research output: Contribution to journalArticle

Obsessive-Compulsive Disorder
Tic Disorders
Genes
Genetic Research
Functional Neuroimaging
49 Citations (Scopus)

How can we improve the assessment of safety in child and adolescent psychopharmacology?

Vitiello, B., Riddle, M. A., Greenhill, L. L., March, J. S., Levine, J., Schachar, R. J., Abikoff, H., Zito, J. M., McCracken, J. T., Walkup, J. T., Findling, R. L., Robinson, J., Cooper, T. B., Davies, M., Varipatis, E., Labellarte, M. J., Scahill, L. & Capasso, L., Jan 1 2003, In : Journal of the American Academy of Child and Adolescent Psychiatry. 42, 6, p. 634-641 8 p.

Research output: Contribution to journalArticle

Psychopharmacology
Safety
Causality
Sample Size
Meta-Analysis
12 Citations (Scopus)
Adolescent Psychiatry
Child Psychiatry
Psychotropic Drugs
Mental Disorders
124 Citations (Scopus)

Obsessive-compulsive symptom dimensions in affected sibling pairs diagnosed with Gilles de la Tourette syndrome

Leckman, J. F., Pauls, D. L., Zhang, H., Rosario-Campos, M. C., Katsovich, L., Kidd, K. K., Pakstis, A. J., Alsobrook, J. P., Robertson, M. M., McMahon, W. M., Walkup, J. T., Van de Wetering, B. J. M., King, R. A. & Cohen, D. J., Jan 1 2003, In : American Journal of Medical Genetics - Neuropsychiatric Genetics. 116 B, 1, p. 60-68 9 p.

Research output: Contribution to journalArticle

Tourette Syndrome
Obsessive Behavior
Siblings
Obsessive-Compulsive Disorder
Fathers
67 Citations (Scopus)

Review of safety assessment methods used in pediatric psychopharmacology

Greenhill, L. L., Vitiello, B., Riddle, M. A., Fisher, P., Shockey, E., March, J. S., Levine, J., Fried, J., Abikoff, H., Zito, J. M., McCracken, J. T., Findling, R. L., Robinson, J., Cooper, T. B., Davies, M., Varipatis, E., Labellarte, M. J., Scahill, L., Walkup, J. T., Capasso, L. & 1 others, Rosengarten, J., Jan 1 2003, In : Journal of the American Academy of Child and Adolescent Psychiatry. 42, 6, p. 627-633 7 p.

Research output: Contribution to journalArticle

Psychopharmacology
Pediatrics
Safety
Aptitude
Drug-Related Side Effects and Adverse Reactions
137 Citations (Scopus)

Treatment for Adolescents with Depression Study (TADS): Rationale, design, and methods

March, J., Silva, S., Petrycki, S., Curry, J., Wells, K., Fairbank, J., Burns, B., Domino, M., Vitiello, B., Severe, J., Casat, C., Kolker, J., Feeny, N., Findling, R., Stull, S., Baab, S., Waslick, B., Sweeney, M., Kentgen, L., Kandel, R. & 30 others, Walkup, J., Ginsburg, G., Kastelik, E., Koo, H., Kratochvil, C., May, D., LaGrone, R., Harrington, M., Albano, A. M., Hirsch, G., Knibbs, T., Capili, E., Reinecke, M., Leventhal, B., Nageotte, C., Rogers, G., Pathak, S., Sallee, F., Cottingham, E., Wells, J., Rohde, P., Simons, A., Grimm, J., Hadjiyannakis, K., Weller, E., Robins, M., Weller, R., Jessani, N., Emslie, G. & Kennard, B., Jan 1 2003, In : Journal of the American Academy of Child and Adolescent Psychiatry. 42, 5, p. 531-542 12 p.

Research output: Contribution to journalArticle

Depression
Major Depressive Disorder
Cognitive Therapy
Therapeutics
National Institute of Mental Health (U.S.)
2002
2 Citations (Scopus)

Anxiety disorders in children and adolescents

Walkup, J. T. & Ginsburg, G. S., Jul 24 2002, In : International Review of Psychiatry. 14, 2, p. 85-86 2 p.

Research output: Contribution to journalEditorial

Anxiety Disorders
2 Citations (Scopus)

Childhood and early-onset anxiety: Treatment and biomarker studies

McCracken, J. T., Walkup, J. T. & Koplewicz, H. S., May 6 2002, In : Journal of Clinical Psychiatry. 63, SUPPL. 6, p. 8-11 4 p.

Research output: Contribution to journalArticle

Anxiety
Biomarkers
Anxiety Disorders
Psychopathology
Therapeutics
14 Citations (Scopus)

The pharmacological treatment of childhood anxiety disorders

Walkup, J. T., Labellarte, M. J. & Ginsburg, G. S., Jul 24 2002, In : International Review of Psychiatry. 14, 2, p. 135-142 8 p.

Research output: Contribution to journalArticle

Serotonin Uptake Inhibitors
Anxiety Disorders
Pharmacology
Safety
Recurrence
64 Citations (Scopus)

Treatment of pediatric anxiety disorders: An open-label extension of the research units on pediatric psychopharmacology anxiety study

Walkup, J., Labellarte, M., Riddle, M. A., Pine, D. S., Greenhill, L., Fairbanks, J., Klein, R., Davies, M., Sweeney, M., Abikoff, H., Hack, S., Klee, B., Bergman, R. L., Lynn, D., McCracken, J., March, J., Gammon, P., Robinson, J., O’hara, T., Baker, S. & 3 others, Vitiello, B., Ritz, L. & Roper, M., Jan 1 2002, In : Journal of Child and Adolescent Psychopharmacology. 12, 3, p. 175-188 14 p.

Research output: Contribution to journalArticle

Fluvoxamine
Psychopharmacology
Anxiety Disorders
Anxiety
Pediatrics
2001
29 Citations (Scopus)

Cluster and regional influences on suicide in a Southwestern American Indian tribe

Wissow, L. S., Walkup, J., Barlow, A., Reid, R. & Kane, S., Jan 1 2001, In : Social Science and Medicine. 53, 9, p. 1115-1124 10 p.

Research output: Contribution to journalArticle

North American Indians
American Indian
Population Groups
Suicide
suicide
53 Citations (Scopus)

Complications of SSRI treatment

Walkup, J. & Labellarte, M., Jan 1 2001, In : Journal of Child and Adolescent Psychopharmacology. 11, 1, p. 1-4 4 p.

Research output: Contribution to journalReview article

Serotonin Uptake Inhibitors
Mental Disorders
15 Citations (Scopus)

Epigenetic and environmental risk factors in Tourette syndrome.

Walkup, J. T., Jan 1 2001, In : Advances in neurology. 85, p. 273-279 7 p.

Research output: Contribution to journalReview article

Tourette Syndrome
Genetic Predisposition to Disease
Epigenomics
270 Citations (Scopus)

Fluvoxamine for children and adolescents with obsessive-compulsive disorder: A randomized, controlled, multicenter trial

Riddle, M. A., Reeve, E. A., Yaryura-Tobias, J. A., Yang, H. M., Claghorn, J. L., Gaffney, G., Greist, J. H., Holland, D., Mcconville, B. J., Pigott, T. & Walkup, J. T., Jan 1 2001, In : Journal of the American Academy of Child and Adolescent Psychiatry. 40, 2, p. 222-229 8 p.

Research output: Contribution to journalArticle

Fluvoxamine
Obsessive-Compulsive Disorder
Multicenter Studies
Randomized Controlled Trials
Placebos
453 Citations (Scopus)

Fluvoxamine for the treatment of anxiety disorders in children and adolescents

Pine, D. S., Walkup, J. T., Labellarte, M. J., Riddle, M. A., Greenhill, L., Klein, R., Davies, M., Sweeney, M., Abikoff, H., Hack, S., Klee, B., McCracken, J., Bergman, L., Piacentini, J., March, J., Compton, S., Robinson, J., O'Hara, T., Baker, S., Vitiello, B. & 2 others, Ritz, L. & Roper, M., Apr 26 2001, In : New England Journal of Medicine. 344, 17, p. 1279-1285 7 p.

Research output: Contribution to journalArticle

Fluvoxamine
Anxiety Disorders
Anxiety
Placebos
Separation Anxiety
1 Citation (Scopus)

Fluvoxamine for the treatment of anxiety disorders in children and adolescents [3] (multiple letters)

Isaacs, E., Pine, D. S., Walkup, J. T. & Greenhill, L., Aug 9 2001, In : New England Journal of Medicine. 345, 6, p. 466-467 2 p.

Research output: Contribution to journalLetter

Fluvoxamine
Anti-Anxiety Agents
Serotonin Uptake Inhibitors
Anxiety Disorders
Therapeutics
9 Citations (Scopus)

Improving the methods for evaluating the safety of psychotropic medications in children and adolescents

Greenhill, L. L., Vitiello, B., Abikoff, H., Levine, J., March, J. S., Riddle, M. A., Capasso, L., Cooper, T., Davies, M., Fisher, P., Findling, R. L., Fried, J., Labellarte, M., McCracken, J., McMahon, D. J., Robinson, J., Skrobala, A. M., Scahill, L., Walkup, J. & Zito, J., Jan 1 2001, In : Current Therapeutic Research - Clinical and Experimental. 62, 12, p. 873-884 12 p.

Research output: Contribution to journalArticle

Safety
Drug-Related Side Effects and Adverse Reactions
Pharmaceutical Preparations
Neurotransmitter Agents
Epidemiologic Studies

The depression severity assessment dilemma

Walkup, J. T. & Frosch, E., Jan 1 2001, In : Journal of Child and Adolescent Psychopharmacology. 11, 3, p. 209-214 6 p.

Research output: Contribution to journalReview article

Severity of Illness Index
Depressive Disorder
Sensitivity and Specificity
154 Citations (Scopus)

The familial phenotype of obsessive-compulsive disorder in relation to tic disorders: The Hopkins OCD family study

Grados, M. A., Riddle, M. A., Samuels, J. F., Liang, K. Y., Hoehn-Saric, R., Bienvenu, O. J., Walkup, J. T., Song, D. & Nestadt, G., Oct 15 2001, In : Biological psychiatry. 50, 8, p. 559-565 7 p.

Research output: Contribution to journalArticle

Tic Disorders
Obsessive-Compulsive Disorder
Phenotype
Age of Onset
Tourette Syndrome
2000
443 Citations (Scopus)

A family study of obsessive-compulsive disorder

Nestadt, G., Samuels, J., Riddle, M., Bienvenu, O. J., Liang, K. Y., Labuda, M., Walkup, J., Grados, M. & Hoehn-Saric, R., Jan 1 2000, In : Archives of general psychiatry. 57, 4, p. 358-363 6 p.

Research output: Contribution to journalArticle

Obsessive-Compulsive Disorder
Obsessive Behavior
Compulsive Personality Disorder
Age of Onset
Obsessive-compulsive Disorder
48 Citations (Scopus)

Infection: A stimulus for tic disorders

Singer, H. S., Giuliano, J. D., Zimmerman, A. M. & Walkup, J. T., May 1 2000, In : Pediatric neurology. 22, 5, p. 380-383 4 p.

Research output: Contribution to journalArticle

Tic Disorders
Tics
Streptococcal Infections
Infection
Compulsive Behavior
1999
84 Citations (Scopus)

Nontricyclic antidepressants: Current trends in children and adolescents

Emslie, G. J., Walkup, J. T., Pliszka, S. R. & Ernst, M., Jan 1 1999, In : Journal of the American Academy of Child and Adolescent Psychiatry. 38, 5, p. 517-528 12 p.

Research output: Contribution to journalArticle

Antidepressive Agents
Safety
Pediatrics
Fluoxetine
Obsessive-Compulsive Disorder
5 Citations (Scopus)

The psychiatry of Tourette syndrome

Walkup, J. T., Jan 1 1999, In : CNS spectrums. 4, 2, p. 54-61 8 p.

Research output: Contribution to journalReview article

Tourette Syndrome
Psychiatry
Tics
Psychology
65 Citations (Scopus)

The treatment of anxiety disorders in children and adolescents

Labellarte, M. J., Ginsburg, G. S., Walkup, J. T. & Riddle, M. A., Dec 1 1999, In : Biological psychiatry. 46, 11, p. 1567-1578 12 p.

Research output: Contribution to journalArticle

Anxiety Disorders
Pediatrics
Psychopharmacology
Epidemiology
Therapeutics
1998
7 Citations (Scopus)

Commentary: Unmasked and uncontrolled medication trials in child and adolescent psychiatry

Walkup, J. T., Labellarte, M. J. & Riddle, M. A., Jan 1 1998, In : Journal of the American Academy of Child and Adolescent Psychiatry. 37, 4, p. 360-363 4 p.

Research output: Contribution to journalArticle

Adolescent Psychiatry
Child Psychiatry
19 Citations (Scopus)

Developing mental health services for Native American children

Barlow, A. & Walkup, J. T., Aug 5 1998, In : Child and Adolescent Psychiatric Clinics of North America. 7, 3, p. 555-557 3 p.

Research output: Contribution to journalReview article

North American Indians
Mental Health Services
Psychiatry
Mental Health
Linguistics

Pediatric psychopharmacology: problems and prospects.

Riddle, M. A., Labellarte, M. J. & Walkup, J. T., Nov 30 1998, In : Journal of Child and Adolescent Psychopharmacology. 8, 2, p. 87-97 11 p.

Research output: Contribution to journalEditorial

Adolescent Psychology
Child Psychology
Psychopharmacology
Pediatrics
12 Citations (Scopus)

Pediaytric psytchopharmacology: Problems and prospects

Koplewicz, H. S., Green, W. H., Riddle, M. A., Labellarte, M. J. & Walkup, J. T., Jan 1 1998, In : Journal of Child and Adolescent Psychopharmacology. 8, 2, p. 87-97 11 p.

Research output: Contribution to journalEditorial

4 Citations (Scopus)

The future of pediatric psychopharmacology

Walkup, J. T., Cruz, K., Kane, S. & Geller, B., Jan 1 1998, In : Pediatric Clinics of North America. 45, 5, p. 1265-1278 14 p.

Research output: Contribution to journalArticle

Psychopharmacology
Drug Industry
Pediatrics
Federal Government
Psychiatry
25 Citations (Scopus)

The new antidepressants: Selective serotonin reuptake inhibitors

Labellarte, M. J., Walkup, J. T. & Riddle, M. A., Jan 1 1998, In : Pediatric Clinics of North America. 45, 5, p. 1137-1155 19 p.

Research output: Contribution to journalArticle

Serotonin Uptake Inhibitors
Antidepressive Agents
Isoenzymes
Drug Costs
Drug Interactions
1997
16 Citations (Scopus)

Obsessive-compulsive disorder in children and adolescents

Grados, M. A., Labuda, M. C., Riddle, M. A. & Walkup, J. T., Jan 1 1997, In : International Review of Psychiatry. 9, 1, p. 83-97 15 p.

Research output: Contribution to journalReview article

Obsessive-Compulsive Disorder
Obsessive Behavior
Tics
Family Therapy
Symptom Assessment
1996
184 Citations (Scopus)

Family study and segregation analysis of Tourette syndrome: Evidence for a mixed model of inheritance

Walkup, J. T., Labuda, M. C., Singer, H. S., Brown, J., Riddle, M. A. & Hurko, O., Aug 27 1996, In : American Journal of Human Genetics. 59, 3, p. 684-693 10 p.

Research output: Contribution to journalArticle

Tourette Syndrome
Parents
Alleles
Tic Disorders
Penetrance
1995
12 Citations (Scopus)

Clinical decision making in child and adolescent psychopharmacology

Walkup, J. T., Jan 1 1995, In : Child and Adolescent Psychiatric Clinics of North America. 4, 1, p. 23-40 18 p.

Research output: Contribution to journalShort survey

Psychopharmacology
Consultants
Decision Making
Medicine
Clinical Decision-Making
33 Citations (Scopus)

Disruptive behavior, hyperactivity, and learning disabilities in children with Tourette's syndrome.

Walkup, J. T., Scahill, L. D. & Riddle, M. A., Jan 1 1995, In : Advances in neurology. 65, p. 259-272 14 p.

Research output: Contribution to journalReview article

Tourette Syndrome
Learning Disorders
Consensus
Research Design
Therapeutics
1992
87 Citations (Scopus)

The Validity of Instruments Measuring Tic Severity in Tourette's Syndrome

WALKUP, JOHN. T., ROSENBERG, LEON. A., BROWN, JANICE. & SINGER, HARVEY. S., Jan 1 1992, In : Journal of the American Academy of Child and Adolescent Psychiatry. 31, 3, p. 472-477 6 p.

Research output: Contribution to journalArticle

Tics
Tourette Syndrome
Social Adjustment
Obsessive-Compulsive Disorder
Child Behavior
1991
160 Citations (Scopus)

Tourette syndrome and other tic disorders: Diagnosis, pathophysiology, and treatment

Singer, H. S. & Walkup, J. T., Jan 1 1991, In : Medicine (United States). 70, 1, p. 15-32 18 p.

Research output: Contribution to journalArticle

Tic Disorders
Tourette Syndrome
Neurology
1990
133 Citations (Scopus)

Perinatal Factors in the Expression of Tourette's Syndrome: An Exploratory Study

LECKMAN, JAMES. F., DOLNANSKY, ELLEN. S., HARDIN, MAUREEN. T., CLUBB, MARIANN., WALKUP, JOHN. T., STEVENSON, JOHN. & PAULS, DAVID. L., Jan 1 1990, In : Journal of the American Academy of Child and Adolescent Psychiatry. 29, 2, p. 220-226 7 p.

Research output: Contribution to journalArticle

Tourette Syndrome
Tics
Disease Susceptibility
First Pregnancy Trimester
Psychological Stress
1988
32 Citations (Scopus)

The relationship between obsessive-compulsive disorder and Tourette's syndrome: A twin study

Walkup, J. T., Leckman, J. F., Price, R. A., Hardin, M., Ort, S. I. & Cohen, D. J., Dec 1 1988, In : Psychopharmacology Bulletin. 24, 3, p. 375-379 5 p.

Research output: Contribution to journalArticle

Diseases in Twins
Tourette Syndrome
Twin Studies
Monozygotic Twins
Obsessive-Compulsive Disorder
1987
78 Citations (Scopus)

Nongenetic Factors in Gilles de la Tourette's Syndrome

Leckman, J. F., Price, R. A., Walkup, J. T., Ort, S., Pauls, D. L. & Cohen, D. J., Jan 1 1987, In : Archives of general psychiatry. 44, 1, 1 p.

Research output: Contribution to journalLetter

Diseases in Twins
Tourette Syndrome
Dopamine Receptors
Birth Weight
Newborn Infant