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This page is alzhub.org's plain-English summary of a published study, not the paper itself. It is generated from the record we hold for this study, sourced and linked below — check the original for the full text and methods.

✓ Peer-reviewed alzhub usefulness score 30 out of 100. Down syndrome and Alzheimer's

Topic: Brain proteins, microglia and lab models

Objective Investigations suggest an increased incidence of gonadal dysfunction in patients with Down syndrome. New features, Alzheimer disease and osteoporosis emerge in these individuals. Therefore, hormonal investigation in persons with Down syndrome is pursued. Methods Thirteen females with trisomy 21 (23.65 +/- 3.23 years old) participated in the study. Ultrasound studies were performed to explore the internal genitals. Blood samples were taken for the determination of follicle stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), prolactin (PRL), dehydroepiandrosterone sulfate (DHEA-S), testosterone (T) and 17-hydroxyprogesterone (17-OHP). Results The patients were at stage V of sexual development. Ultrasonography demonstrated normal uterine and ovarian size and endometrial thickness as well. The ovaries of all patients contained follicles of normal distribution and various sizes. The mean concentrations of FSH, DHEA-S and E2 were normal. The level of PRL was significantly higher than that of the controls, but within the normal lab range. The levels of LH, T and 17-OHP were significantly elevated, compared to those of the control group (P Conclusions Our data produce new information on the gonadal function of Down syndrome women. Specific studies on pituitary-gonadal and pituitary-adrenal axis function are needed.

Key findings

Why it matters

This small study of 13 young women with Down syndrome found normal ovarian and uterine structure and mostly normal hormone levels, with some hormones elevated compared to controls. It provides no information about treating, curing or preventing Alzheimer's disease.

Study details

How this study scored 30/100
How this study's score is builtJournal tier 7 of 10; Journal's citation record left out, no data; Study design 0 of 12; Strength of evidence 1 of 5; Peer-review validation 10 of 10; How recent 1 of 5; Sample size 0 of 4; Effect reported 0 of 3; Studied in people 0 of 3; Randomised / blinded 0 of 2; Times cited 3 of 7; Citations per year 1 of 5; Impact for its field and year 2 of 6; Cited by studies here 0 of 6; Still being cited 0 of 4; Senior author's track record 2 of 4; Institution's track record 0 of 3; Multi-centre collaboration 0 of 3; Indexed in PubMed 2 of 2; Free to read 0 of 2. 29 of the 96 points it could be judged on, which is 30 of 100. Total 30 of 100.29 of the 96 points we could judge = 30 of 100

Published in a peer-reviewed 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 journal's citation record, so that was left out: it earned 29 of the 96 points we could judge it on, which is 30 out of 100.

ComponentPointsWhy
Journal tier 7 / 10 Tier 3 — peer-reviewed journal (International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics)
Journal's citation record — / 4 No journal record from OpenAlex — left out of this score
Study design 0 / 12 No study design recorded — scores zero, not guessed (not stated in the record — scored 0)
Strength of evidence 1 / 5 Rated “low” in our summary
Peer-review validation 10 / 10 Peer-reviewed. Published as an article in a named peer-reviewed journal.
How recent 1 / 5 1999 — 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 3 / 7 Cited 34 times (OpenAlex, 2026-10-10)
Citations per year 1 / 5 1.2 citations a year over 29 year(s) since 1999
Impact for its field and year 2 / 6 Cited 1.1× 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 0 / 4 Cited 2 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record 2 / 4 Last-listed author Konstantinos Mandroukas: h-index 22 (OpenAlex, whole career)
Institution's track record 0 / 3 Aristotle University of Thessaloniki: institution h-index 560 (OpenAlex)
Multi-centre collaboration 0 / 3 OpenAlex lists 1 institution(s) in 1 country — scores zero (affiliation lists can be incomplete)
Indexed in PubMed 2 / 2 Indexed in PubMed (PMID 10576235)
Free to read 0 / 2 Behind a paywall — scores zero
Points 29 / 96 Scored on 19 of 20 parts. We have no data for the rest, so they are left out: 29 of the 96 points we could judge it on is 30 out of 100.
Total 30 / 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. Check the citation against the original before you use it.

APA 7th

Angelopoulou, N., Souftas, V., Sakadamis, A., Matziari, C., Papameletiou, V., & Mandroukas, K. (1999). Gonadal function in young women with Down syndrome. International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics. https://doi.org/10.1016/s0020-7292(99)00123-x

Vancouver

Angelopoulou N, Souftas V, Sakadamis A, Matziari C, Papameletiou V, Mandroukas K. Gonadal function in young women with Down syndrome. International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics. 1999. doi:10.1016/s0020-7292(99)00123-x. PMID: 10576235.

BibTeX

@article{angelopoulou1999-10576235,
  author  = {Angelopoulou, N. and Souftas, V. and Sakadamis, A. and Matziari, C. and Papameletiou, V. and Mandroukas, K.},
  title   = {{Gonadal function in young women with Down syndrome}},
  journal = {International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics},
  year    = {1999},
  doi     = {10.1016/s0020-7292(99)00123-x},
  pmid    = {10576235},
  url     = {https://doi.org/10.1016/s0020-7292(99)00123-x}
}

Studies this one cites

Referenced by this study and also in the alzhub library, so you can read them here.

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