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author:("fancher, S.")
1.  Activity enhances dopaminergic long-duration response in Parkinson disease 
Jung Kang, Un | Auinger, Peggy | Fahn, Stanley | Oakes, David | Shoulson, Ira | Kieburtz, Karl | Rudolph, Alice | Marek, Kenneth | Seibyl, John | Lang, Anthony | Olanow, C. Warren | Tanner, Caroline | Schifitto, Giovanni | Zhao, Hongwei | Reyes, Lydia | Shinaman, Aileen | Comella, Cynthia L. | Goetz, Christopher | Blasucci, Lucia M. | Samanta, Johan | Stacy, Mark | Williamson, Kelli | Harrigan, Mary | Greene, Paul | Ford, Blair | Moskowitz, Carol | Truong, Daniel D. | Pathak, Mayank | Jankovic, Joseph | Ondo, William | Atassi, Farah | Hunter, Christine | Jacques, Carol | Friedman, Joseph H. | Lannon, Margaret | Russell, David S. | Jennings, Danna | Fussell, Barbara | Standaert, David | Schwarzschild, Michael A. | Growdon, John H. | Tennis, Marsha | Gauthier, Serge | Panisset, Michel | Hall, Jean | Gancher, Stephen | Hammerstad, John P. | Stone, Claudia | Alexander-Brown, Barbara | Factor, Stewart A. | Molho, Eric | Brown, Diane | Evans, Sharon | Clark, Jeffrey | Manyam, Bala | Simpson, Patricia | Wulbrecht, Brian | Whetteckey, Jacqueline | Martin, Wayne | Roberts, Ted | King, Pamela | Hauser, Robert | Zesiewicz, Theresa | Gauger, Lisa | Trugman, Joel | Wooten, G. Frederick | Rost-Ruffner, Elke | Perlmutter, Joel | Racette, Brad A. | Suchowersky, Oksana | Ranawaya, Ranjit | Wood, Susan | Pantella, Carol | Kurlan, Roger | Richard, Irene | Pearson, Nancy | Caviness, John N. | Adler, Charles | Lind, Marlene | Simuni, Tanya | Siderowf, Andrew | Colcher, Amy | Lloyd, Mary | Weiner, William | Shulman, Lisa | Koller, William | Lyons, Kelly | Feldman, Robert G. | Saint-Hilaire, Marie H. | Ellias, Samuel | Thomas, Cathi-Ann | Juncos, Jorge | Watts, Ray | Partlow, Anna | Tetrud, James | Togasaki, Daniel M. | Stewart, Tracy | Mark, Margery H. | Sage, Jacob I. | Caputo, Debbie | Gould, Harry | Rao, Jayaraman | McKendrick, Ann | Brin, Mitchell | Danisi, Fabio | Benabou, Reina | Hubble, Jean | Paulson, George W. | Reider, Carson | Birnbaum, Alex | Miyasaki, Janis | Johnston, Lisa | So, Julie | Pahwa, Rajesh | Dubinsky, Richard M. | Wszolek, Zbigniew | Uitti, Ryan | Turk, Margaret | Tuite, Paul | Rottenberg, David | Hansen, Joy | Ramos, Serrano | Waters, Cheryl | Lew, Mark | Welsh, Mickie | Kawai, Connie | O'Brien, Christopher | Kumar, Rajeev | Seeberger, Lauren | Judd, Deborah | Barclay, C. Lynn | Grimes, David A. | Sutherland, Laura | Dawson, Ted | Reich, Stephen | Dunlop, Rebecca | Albin, Roger | Frey, Kirk | Wernette, Kristine | Fahn, Stanley | Oakes, David | Shoulson, Ira | Kieburtz, Karl | Rudolph, Alice | Marek, Kenneth | Seibyl, John | Lang, Anthony | Olanow, C. Warren | Tanner, Caroline | Schifitto, Giovanni | Zhao, Hongwei | Reyes, Lydia | Shinaman, Aileen | Comella, Cynthia L. | Goetz, Christopher | Blasucci, Lucia M. | Samanta, Johan | Stacy, Mark | Williamson, Kelli | Harrigan, Mary | Greene, Paul | Ford, Blair | Moskowitz, Carol | Truong, Daniel D. | Pathak, Mayank | Jankovic, Joseph | Ondo, William | Atassi, Farah | Hunter, Christine | Jacques, Carol | Friedman, Joseph H. | Lannon, Margaret | Russell, David S. | Jennings, Danna | Fussell, Barbara | Standaert, David | Schwarzschild, Michael A. | Growdon, John H. | Tennis, Marsha | Gauthier, Serge | Panisset, Michel | Hall, Jean | Gancher, Stephen | Hammerstad, John P. | Stone, Claudia | Alexander-Brown, Barbara | Factor, Stewart A. | Molho, Eric | Brown, Diane | Evans, Sharon | Clark, Jeffrey | Manyam, Bala | Simpson, Patricia | Wulbrecht, Brian | Whetteckey, Jacqueline | Martin, Wayne | Roberts, Ted | King, Pamela | Hauser, Robert | Zesiewicz, Theresa | Gauger, Lisa | Trugman, Joel | Wooten, G. Frederick | Rost-Ruffner, Elke | Perlmutter, Joel | Racette, Brad A. | Suchowersky, Oksana | Ranawaya, Ranjit | Wood, Susan | Pantella, Carol | Kurlan, Roger | Richard, Irene | Pearson, Nancy | Caviness, John N. | Adler, Charles | Lind, Marlene | Simuni, Tanya | Siderowf, Andrew | Colcher, Amy | Lloyd, Mary | Weiner, William | Shulman, Lisa | Koller, William | Lyons, Kelly | Feldman, Robert G. | Saint-Hilaire, Marie H. | Ellias, Samuel | Thomas, Cathi-Ann | Juncos, Jorge | Watts, Ray | Partlow, Anna | Tetrud, James | Togasaki, Daniel M. | Stewart, Tracy | Mark, Margery H. | Sage, Jacob I. | Caputo, Debbie | Gould, Harry | Rao, Jayaraman | McKendrick, Ann | Brin, Mitchell | Danisi, Fabio | Benabou, Reina | Hubble, Jean | Paulson, George W. | Reider, Carson | Birnbaum, Alex | Miyasaki, Janis | Johnston, Lisa | So, Julie | Pahwa, Rajesh | Dubinsky, Richard M. | Wszolek, Zbigniew | Uitti, Ryan | Turk, Margaret | Tuite, Paul | Rottenberg, David | Hansen, Joy | Ramos, Serrano | Waters, Cheryl | Lew, Mark | Welsh, Mickie | Kawai, Connie | O'Brien, Christopher | Kumar, Rajeev | Seeberger, Lauren | Judd, Deborah | Barclay, C. Lynn | Grimes, David A. | Sutherland, Laura | Dawson, Ted | Reich, Stephen | Dunlop, Rebecca | Albin, Roger | Frey, Kirk | Wernette, Kristine | Mendis, Tilak
Neurology  2012;78(15):1146-1149.
Objective:
We tested the hypothesis that dopamine-dependent motor learning mechanism underlies the long-duration response to levodopa in Parkinson disease (PD) based on our studies in a mouse model. By data-mining the motor task performance in dominant and nondominant hands of the subjects in a double-blind randomized trial of levodopa therapy, the effects of activity and dopamine therapy were examined.
Methods:
We data-mined the Earlier versus Later Levodopa Therapy in Parkinson's Disease (ELLDOPA) study published in 2005 and performed statistical analysis comparing the effects of levodopa and dominance of handedness over 42 weeks.
Results:
The mean change in finger-tapping counts from baseline before the initiation of therapy to predose at 9 weeks and 40 weeks increased more in the dominant compared to nondominant hand in levodopa-treated subjects in a dose-dependent fashion. There was no significant difference in dominant vs nondominant hands in the placebo group. The short-duration response assessed by the difference of postdose performance compared to predose performance at the same visit did not show any significant difference between dominant vs nondominant hands.
Conclusions:
Active use of the dominant hand and dopamine replacement therapy produces synergistic effect on long-lasting motor task performance during “off” medication state. Such effect was confined to dopamine-responsive symptoms and not seen in dopamine-resistant symptoms such as gait and balance. We propose that long-lasting motor learning facilitated by activity and dopamine is a form of disease modification that is often seen in trials of medications that have symptomatic effects.
doi:10.1212/WNL.0b013e31824f8056
PMCID: PMC3466780  PMID: 22459675
2.  A comprehensive analysis of deletions, multiplications, and copy number variations in PARK2 
Neurology  2010;75(13):1189-1194.
Objectives:
To perform a comprehensive population genetic study of PARK2. PARK2 mutations are associated with juvenile parkinsonism, Alzheimer disease, cancer, leprosy, and diabetes mellitus, yet ironically, there has been no comprehensive study of PARK2 in control subjects; and to resolve controversial association of PARK2 heterozygous mutations with Parkinson disease (PD) in a well-powered study.
Methods:
We studied 1,686 control subjects (mean age 66.1 ± 13.1 years) and 2,091 patients with PD (mean onset age 58.3 ± 12.1 years). We tested for PARK2 deletions/multiplications/copy number variations (CNV) using semiquantitative PCR and multiplex ligation-dependent probe amplification, and validated the mutations by real-time quantitative PCR. Subjects were tested for point mutations previously. Association with PD was tested as PARK2 main effect, and in combination with known PD risk factors: SNCA, MAPT, APOE, smoking, and coffee intake.
Results:
A total of 0.95% of control subjects and 0.86% of patients carried a heterozygous CNV mutation. CNV mutations found in 16 control subjects were all in exons 1–4, sparing exons that encode functionally critical protein domains. Thirteen patients had 2 CNV mutations, 5 had 1 CNV and 1 point mutation, and 18 had 1 CNV mutation. Mutations found in patients spanned exons 2–9. In whites, having 1 CNV was not associated with increased risk (odds ratio 1.05, p = 0.89) or earlier onset of PD (64.7 ± 8.6 heterozygous vs 58.5 ± 11.8 normal).
Conclusions:
This comprehensive population genetic study in control subjects fills the void for a PARK2 reference dataset. There is no compelling evidence for association of heterozygous PARK2 mutations, by themselves or in combination with known risk factors, with PD.
GLOSSARY
= autosomal recessive juvenile parkinsonism;
= confidence interval;
= copy number variation;
= moving average plots;
= multiplex ligation-dependent probe amplification;
= NeuroGenetics Research Consortium;
= odds ratio;
= Parkinson disease.
doi:10.1212/WNL.0b013e3181f4d832
PMCID: PMC3013490  PMID: 20876472
3.  Validation of the patient roster in a primary care practice. 
Health Services Research  1985;20(3):301-314.
Knowledge of the size of a practice population is an essential base for the evaluation of new forms of health care delivery and for epidemiologic research in primary care. Remuneration to providers in Ontario's Health Service Organization and Health Centre programs is partially based on the number of people listed on the patient roster as members of the practice. However, the accuracy of these rosters has never been determined. A mail and telephone survey was conducted to validate the roster in one such health center. A random sample of 1,065 households was contacted and a 78 percent response rate was obtained. The practice roster showed a population of 3,134. The age- and sex-adjusted estimate from the survey was 2,964 (+/- 262) individuals. The sensitivity, specificity, and accuracy of the roster were 0.90 or greater. It is concluded that this particular roster is a valid indicator of practice size, but caution is expressed about generalizing these results to other practices.
PMCID: PMC1068882  PMID: 4019213
4.  The Computer: An Effective Research Assistant 
Canadian Family Physician  1984;30:885-887.
The development of software packages such as data management systems and statistical packages has made it possible to process large amounts of research data. Data management systems make the organization and manipulation of such data easier. Floppy disks ease the problem of storing and retrieving records. Patient information can be kept confidential by limiting access to computer passwords linked with research files, or by using floppy disks. These attributes make the microcomputer essential to modern primary care research.
PMCID: PMC2154086  PMID: 21279042

Results 1-4 (4)