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Mutation in the α-Synuclein Gene Identified in Families with Parkinson's Disease
Mihael H. Polymeropoulos, Christian N. Lavedan, Elisabeth Leroy, Susan E. Ide, Anindya M. Dehejia, Amalia Dutra, Brian L. Pike, Holly Root, Jeffrey Rubenstein, Rebecca Boyer, Edward S. Stenroos, Settara C. Chandrasekharappa, Aglaia Athanassiadou, Theodore Papapetropoulos, William G. Johnson, Alice M. Lazzarini, Roger C. Duvoisin, Giuseppe Di Iorio, Lawrence I. Golbe, Robert L. Nussbaum. Science, 1997-06-27
Topic: Brain proteins, microglia and lab models
Parkinson's disease (PD) is a common neurodegenerative disorder with a lifetime incidence of approximately 2 percent. A pattern of familial aggregation has been documented for the disorder, and it was recently reported that a PD susceptibility gene in a large Italian kindred is located on the long arm of human chromosome 4. A mutation was identified in the alpha-synuclein gene, which codes for a presynaptic protein thought to be involved in neuronal plasticity, in the Italian kindred and in three unrelated families of Greek origin with autosomal dominant inheritance for the PD phenotype. This finding of a specific molecular alteration associated with PD will facilitate the detailed understanding of the pathophysiology of the disorder.
Why it matters
Researchers found a mutation in the alpha-synuclein gene in an Italian family and in three unrelated families of Greek origin with inherited Parkinson's disease. The authors say this finding will help in understanding how the disorder develops.
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How this study scored 59/100
Published in a top-tier journal. Scored zero for study design, sample size, effect reported, studied in people and randomised / blinded because the record does not state it. We have no data on strength of evidence, so that was left out: it earned 56 of the 95 points we could judge it on, which is 59 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 10 / 10 | Tier 1 — top-tier general journal (Science) |
| Journal's citation record | 4 / 4 | Science: journal h-index 1,754 (OpenAlex, 2026-10-29) |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| Strength of evidence | — / 5 | No evidence rating recorded — left out of this score |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 1 / 5 | 1997 — older than 20 years, still counted |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 7 / 7 | Cited 8,244 times (OpenAlex, 2026-10-10) |
| Citations per year | 5 / 5 | 265.9 citations a year over 31 year(s) since 1997 |
| Impact for its field and year | 6 / 6 | Cited 127.1× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 0 / 6 | No other study in this library cites it |
| Still being cited | 4 / 4 | Cited 771 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 2 / 4 | Last-listed author Robert L. Nussbaum: h-index 44 (OpenAlex, whole career) |
| Institution's track record | 3 / 3 | National Institutes of Health: institution h-index 2,723 (OpenAlex) |
| Multi-centre collaboration | 2 / 3 | OpenAlex lists 4 institution(s) in 3 countries |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 9197268) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 56 / 95 | Scored on 19 of 20 parts. We have no data for the rest, so they are left out: 56 of the 95 points we could judge it on is 59 out of 100. |
| Total | 59 / 100 | — |
What each of these 20 components measures, and what this score is not →
Read the original
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Cite this study APA, Vancouver, BibTeX · download .bib or .ris
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. The record names 20 authors; APA and Vancouver show the first six, BibTeX and the downloads carry all of them. Check the citation against the original before you use it.
APA 7th
Polymeropoulos, M. H., Lavedan, C. N., Leroy, E., Ide, S. E., Dehejia, A. M., Dutra, A., et al. (1997). Mutation in the α-Synuclein Gene Identified in Families with Parkinson's Disease. Science. https://doi.org/10.1126/science.276.5321.2045
Vancouver
Polymeropoulos MH, Lavedan CN, Leroy E, Ide SE, Dehejia AM, Dutra A, et al. Mutation in the α-Synuclein Gene Identified in Families with Parkinson's Disease. Science. 1997. doi:10.1126/science.276.5321.2045. PMID: 9197268.
BibTeX
@article{polymeropoulos1997-9197268,
author = {Polymeropoulos, Mihael H. and Lavedan, Christian N. and Leroy, Elisabeth and Ide, Susan E. and Dehejia, Anindya M. and Dutra, Amalia and Pike, Brian L. and Root, Holly and Rubenstein, Jeffrey and Boyer, Rebecca and Stenroos, Edward S. and Chandrasekharappa, Settara C. and Athanassiadou, Aglaia and Papapetropoulos, Theodore and Johnson, William G. and Lazzarini, Alice M. and Duvoisin, Roger C. and Di Iorio, Giuseppe and Golbe, Lawrence I. and Nussbaum, Robert L.},
title = {{Mutation in the α-Synuclein Gene Identified in Families with Parkinson's Disease}},
journal = {Science},
year = {1997},
doi = {10.1126/science.276.5321.2045},
pmid = {9197268},
url = {https://doi.org/10.1126/science.276.5321.2045}
}
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