Evidence map›Paper›PMID 23723695›Full record

ArticleClinical interventions in aging2013

The effect of soybean-derived phosphatidylserine on cognitive performance in elderly with subjective memory complaints: a pilot study.

Yael Richter, Yael Herzog, Yael Lifshitz, Rami Hayun, Sigalit Zchut

Abstract read
In one paragraph

Article in Clinical interventions in aging, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed.

  1. Beneficial vascular effects of oral phosphatidylserine supplementation in type 2 diabetes.Journal of applied physiology (Bethesda, Md. : 1985) · 2026
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  7. Frontiers in nutrition · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Yael RichterEnzymotec Ltd, K'far Baruch, Israel.
Yael Herzog
Yael Lifshitz
Rami Hayun
Sigalit Zchut

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the efficacy and safety of soybean-derived phosphatidylserine (SB-PS) (300 mg/day) in improving cognitive performance in elderly with memory complaints, following a short duration of 12 weeks' SB-PS administration.

methodsSB-PS was administered daily for 12 weeks to 30 elderly volunteers with memory complaints (age range 50-90 years). Cognitive performance was determined by a computerized test battery and by the Rey Auditory Verbal Learning Test (Rey-AVLT). Physical examination and blood safety parameters were part of the extensive safety analysis of PS that was performed.

resultsThe computerized test results showed that SB-PS supplementation significantly increased the following cognitive parameters: memory recognition (P = 0.004), memory recall (P = 0.006), executive functions (P = 0.004), and mental flexibility (P = 0.01). The Rey-AVLT indicated that, following SB-PS administration, total learning and immediate recall improved significantly (P = 0.013 and P = 0.007, respectively). Unexpected results from the safety tests suggested that SB-PS significantly reduces both systolic (P = 0.043) and diastolic (P = 0.003) blood pressure. SB-PS consumption was well tolerated and no serious adverse events were reported during the study.

conclusionThis exploratory study demonstrates that SB-PS may have favorable effects on cognitive function in elderly with memory complaints. In addition, the study suggests that SB-PS is safe for human consumption and may serve as a safe alternative to phosphatidylserine extracted from bovine cortex. These results encourage further extended studies in order to establish the safety and efficacy of SB-PS treatment.

Indexed as

AgedAged, 80 and overAnalysis of VarianceFemaleGeriatric AssessmentGlycine maxHumansMaleMemory DisordersMiddle AgedNeuropsychological TestsPhosphatidylserinesPilot ProjectsStatistics, NonparametricTreatment OutcomePhosphatidylserinesAAMIcognitivelearningmemoryphosphatidylserine

Identifiers

PMID23723695
PMCPMC3665496

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.