A citation-based method for searching scientific literature


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



Times Cited
  Times     Co-cited
Similarity


Nigrostriatal function in humans studied with positron emission tomography.
W R Martin, M R Palmer, C S Patlak, D B Calne. Ann Neurol 1989
281
49

Striatal 18F-dopa uptake: absence of an aging effect.
D Eidelberg, S Takikawa, V Dhawan, T Chaly, W Robeson, R Dahl, D Margouleff, J R Moeller, C S Patlak, S Fahn. J Cereb Blood Flow Metab 1993
98
47

Striatal function in normal aging: implications for Parkinson's disease.
G V Sawle, J G Colebatch, A Shah, D J Brooks, C D Marsden, R S Frackowiak. Ann Neurol 1990
147
44



Presynaptic monoaminergic vesicles in Parkinson's disease and normal aging.
K A Frey, R A Koeppe, M R Kilbourn, T M Vander Borght, R L Albin, S Gilman, D E Kuhl. Ann Neurol 1996
239
29


Comparative nigrostriatal dopaminergic imaging with iodine-123-beta CIT-FP/SPECT and fluorine-18-FDOPA/PET.
T Ishikawa, V Dhawan, K Kazumata, T Chaly, F Mandel, J Neumeyer, C Margouleff, B Babchyck, I Zanzi, D Eidelberg. J Nucl Med 1996
143
27


Decreased dopamine transporters with age in health human subjects.
N D Volkow, J S Fowler, G J Wang, J Logan, D Schlyer, R MacGregor, R Hitzemann, A P Wolf. Ann Neurol 1994
145
26

Age-related decline in striatal dopamine transporter binding with iodine-123-beta-CITSPECT.
C H van Dyck, J P Seibyl, R T Malison, M Laruelle, E Wallace, S S Zoghbi, Y Zea-Ponce, R M Baldwin, D S Charney, P B Hoffer. J Nucl Med 1995
210
24

In vivo positron emission tomographic evidence for compensatory changes in presynaptic dopaminergic nerve terminals in Parkinson's disease.
C S Lee, A Samii, V Sossi, T J Ruth, M Schulzer, J E Holden, J Wudel, P K Pal, R de la Fuente-Fernandez, D B Calne,[...]. Ann Neurol 2000
366
24

Dopa decarboxylase activity of the living human brain.
A Gjedde, J Reith, S Dyve, G Léger, M Guttman, M Diksic, A Evans, H Kuwabara. Proc Natl Acad Sci U S A 1991
137
23

Dopamine visualized in the basal ganglia of living man.
E S Garnett, G Firnau, C Nahmias. Nature 1983
439
23


Striatal dopamine deficiency in Parkinson's disease: role of aging.
D Scherman, C Desnos, F Darchen, P Pollak, F Javoy-Agid, Y Agid. Ann Neurol 1989
214
21

Aging and extrapyramidal function.
P L McGeer, E G McGeer, J S Suzuki. Arch Neurol 1977
534
21

Clinical significance of striatal DOPA decarboxylase activity in Parkinson's disease.
T Ishikawa, V Dhawan, T Chaly, C Margouleff, W Robeson, J R Dahl, F Mandel, P Spetsieris, D Eidelberg. J Nucl Med 1996
46
28

Dopamine transporter mRNA content in human substantia nigra decreases precipitously with age.
M J Bannon, M S Poosch, Y Xia, D J Goebel, B Cassin, G Kapatos. Proc Natl Acad Sci U S A 1992
152
18

Dopamine transporters decrease with age.
N D Volkow, Y S Ding, J S Fowler, G J Wang, J Logan, S J Gatley, R Hitzemann, G Smith, S D Fields, R Gur. J Nucl Med 1996
205
18

Reproducibility of fluorine-18-6-fluorodopa positron emission tomography in normal human subjects.
F J Vingerhoets, B J Snow, M Schulzer, S Morrison, T J Ruth, J E Holden, S Cooper, D B Calne. J Nucl Med 1994
84
18

Combined FDOPA and 3OMFD PET studies in Parkinson's disease.
V Dhawan, T Ishikawa, C Patlak, T Chaly, W Robeson, A Belakhlef, C Margouleff, F Mandel, D Eidelberg. J Nucl Med 1996
47
23

6-[18F]fluoro-L-dopa metabolism in living human brain: a comparison of six analytical methods.
H Hoshi, H Kuwabara, G Léger, P Cumming, M Guttman, A Gjedde. J Cereb Blood Flow Metab 1993
98
16

Decreased single-photon emission computed tomographic [123I]beta-CIT striatal uptake correlates with symptom severity in Parkinson's disease.
J P Seibyl, K L Marek, D Quinlan, K Sheff, S Zoghbi, Y Zea-Ponce, R M Baldwin, B Fussell, E O Smith, D S Charney,[...]. Ann Neurol 1995
384
16

Regulation of DOPA decarboxylase activity in brain of living rat.
P Cumming, H Kuwabara, A Ase, A Gjedde. J Neurochem 1995
64
15

Graphical evaluation of blood-to-brain transfer constants from multiple-time uptake data.
C S Patlak, R G Blasberg, J D Fenstermacher. J Cereb Blood Flow Metab 1983
15

Parallel loss of presynaptic and postsynaptic dopamine markers in normal aging.
N D Volkow, G J Wang, J S Fowler, Y S Ding, R C Gur, J Gatley, J Logan, P J Moberg, R Hitzemann, G Smith,[...]. Ann Neurol 1998
129
15

Decreased density of human striatal dopamine uptake sites with age.
N Zelnik, I Angel, S M Paul, J E Kleinman. Eur J Pharmacol 1986
106
15

Human positron emission tomographic [18F]fluorodopa studies correlate with dopamine cell counts and levels.
B J Snow, I Tooyama, E G McGeer, T Yamada, D B Calne, H Takahashi, H Kimura. Ann Neurol 1993
271
15

Kinetics and modeling of L-6-[18F]fluoro-dopa in human positron emission tomographic studies.
S C Huang, D C Yu, J R Barrio, S Grafton, W P Melega, J M Hoffman, N Satyamurthy, J C Mazziotta, M E Phelps. J Cereb Blood Flow Metab 1991
132
13

Positron emission tomographic imaging of the dopamine transporter with 11C-WIN 35,428 reveals marked declines in mild Parkinson's disease.
J J Frost, A J Rosier, S G Reich, J S Smith, M D Ehlers, S H Snyder, H T Ravert, R F Dannals. Ann Neurol 1993
297
13

Differing patterns of striatal 18F-dopa uptake in Parkinson's disease, multiple system atrophy, and progressive supranuclear palsy.
D J Brooks, V Ibanez, G V Sawle, N Quinn, A J Lees, C J Mathias, R Bannister, C D Marsden, R S Frackowiak. Ann Neurol 1990
499
13


The nigrostriatal dopaminergic system assessed in vivo by positron emission tomography in healthy volunteer subjects and patients with Parkinson's disease.
K L Leenders, E P Salmon, P Tyrrell, D Perani, D J Brooks, H Sager, T Jones, C D Marsden, R S Frackowiak. Arch Neurol 1990
335
13


Age-related changes in the human nigrostriatal dopaminergic system.
J De Keyser, G Ebinger, G Vauquelin. Ann Neurol 1990
130
13

Human brain dopamine receptors in children and aging adults.
P Seeman, N H Bzowej, H C Guan, C Bergeron, L E Becker, G P Reynolds, E D Bird, P Riederer, K Jellinger, S Watanabe. Synapse 1987
347
13

Association between decline in brain dopamine activity with age and cognitive and motor impairment in healthy individuals.
N D Volkow, R C Gur, G J Wang, J S Fowler, P J Moberg, Y S Ding, R Hitzemann, G Smith, J Logan. Am J Psychiatry 1998
575
13


Age-related dopamine D2/D3 receptor loss in extrastriatal regions of the human brain.
V Kaasinen, H Vilkman, J Hietala, K Någren, H Helenius, H Olsson, L Farde, J Rinne. Neurobiol Aging 2000
230
13

Aromatic L-amino acid decarboxylase activity of mouse striatum is modulated via dopamine receptors.
M Hadjiconstantinou, T A Wemlinger, C P Sylvia, J P Hubble, N H Neff. J Neurochem 1993
113
13

Clinical and [18F] dopa PET findings in early Parkinson's disease.
P K Morrish, G V Sawle, D J Brooks. J Neurol Neurosurg Psychiatry 1995
182
12

Brain dopamine and the syndromes of Parkinson and Huntington. Clinical, morphological and neurochemical correlations.
H Bernheimer, W Birkmayer, O Hornykiewicz, K Jellinger, F Seitelberger. J Neurol Sci 1973
12



Dopamine transporter imaging with fluorine-18-FPCIT and PET.
K Kazumata, V Dhawan, T Chaly, A Antonini, C Margouleff, A Belakhlef, J Neumeyer, D Eidelberg. J Nucl Med 1998
118
12


Age-dependent decline of dopamine D1 receptors in human brain: a PET study.
Y Wang, G L Chan, J E Holden, T Dobko, E Mak, M Schulzer, J M Huser, B J Snow, T J Ruth, D B Calne,[...]. Synapse 1998
154
12

Effects of age on dopamine and serotonin receptors measured by positron tomography in the living human brain.
D F Wong, H N Wagner, R F Dannals, J M Links, J J Frost, H T Ravert, A A Wilson, A E Rosenbaum, A Gjedde, K H Douglass. Science 1984
611
12



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.