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September 1, 1968Journal of Clinical InvestigationOpen Access

The effect of salicylates on the hemostatic properties of platelets in man

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Why the study?

Does aspirin alter bleeding time and platelet aggregation compared to sodium salicylate or placebo in normal male subjects?

Population

6 normal male subjects (for in vivo experiments) and platelet-rich plasma (for in vitro experiments)

Comparison

Aspirin vs Sodium salicylate and placebo

Design

Other

Follow-up

4-7 days

Authors

HWHarvey J. WeissColumbia UniversityLALouis M. AledortIcahn School of Medicine at Mount SinaiSKShaul KochwaIcahn School of Medicine at Mount Sinai

Discussion

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Implication

Aspirin but not salicylate impairs hemostasis in healthy subjects; leaves open differential bleeding risks among NSAIDs in clinical populations.

Structured PICO

Does aspirin alter bleeding time and platelet aggregation compared to sodium salicylate or placebo in normal male subjects?

P
Population
6 normal male subjects (for in vivo experiments) and platelet-rich plasma (for in vitro experiments)
I
Intervention
Aspirin (1.5 g or 1.8 g single dose in vivo; 0.50 mmole/liter in vitro)
C
Comparator
Sodium salicylate and placebo
O
Outcome
Bleeding time and platelet aggregation/ADP releasesurrogate

Aspirin irreversibly prolongs bleeding time and inhibits platelet aggregation by decreasing ADP release, an effect not shared by sodium salicylate.

Cite This Study

Weiss et al. (1968) studied this question.

synapsesocial.com/papers/6a0ea44db9cfc04f92479eddhttps://doi.org/10.1172/jci105903
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Inhibition of Adenosine Diphosphate-Induced Secondary Aggregation and Other Platelet Functions by Acetylsalicylic Acid Ingestion1968 · 325 citations
  2. 2Release of a Platelet-Aggregating Substance (Adenosine Diphosphate) from Rabbit Blood Platelets Induced by Saline “Extract” of Tendons1963 · 181 citations
  3. 3PROTEIN MEASUREMENT WITH THE FOLIN PHENOL REAGENT1951 · 318,705 citations
  4. 4Production of Hypoprothrombinemia and Hypoeoagulability of the Blood with Salicylates.1943 · 74 citations