1 The uptake of 5-hydroxytryptamine (5-HT) by rat blood platelets in citrated plasma was linear for at most 10 s and was substantially complete within 3 minutes. 2 Adenosine 5'-diphosphate (ADP) was a potent inhibitor of 5-HT uptake (Ki=0.38 muM) and kinetic analysis revealed that the inhibition was not competitive. 3 Inhibition of 5-HT uptake by ADP was abolished in the presence of prostaglandin E1 and 2-n-amylthio-AMP, which also inhibit the stimulant actions of ADP on blood platelets. 4 It is concluded that ADP could inhibit 5-HT uptake by changing the Na+/K+ distribution across the cell membrane, and the biological significance of this is discussed.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1666889 | PMC |
| http://dx.doi.org/10.1111/j.1476-5381.1976.tb07452.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The effect of physical cues on platelet storage lesion.
Hematology
December 2025
Department of Blood Transfusion, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, People's Republic of China.
Background: Platelet concentrates play an important role in clinical treatment such as platelet function disorders and thrombocytopenia. In the process of preparation and storage of platelets, centrifugation, leukofiltration, and agitation will cause morphological changes and impaired function of platelets, which is associated with the increase of platelet transfusion refractoriness, and named as platelet storage lesion (PSL).
Method: This paper proposes three major operations (centrifugation, agitation, and leukofiltration) that platelets experience during the preparation and storage process, to explore the effect of physical cues on PSL.
Changes in platelet maturity and reactivity following acute ST-segment elevation myocardial infarction.
Res Pract Thromb Haemost
January 2025
Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark.
Background: Reduced effect of antiplatelet therapy has been reported in patients with ST-segment elevation myocardial infarction (STEMI). This could partly be explained by an increase of highly reactive immature platelets.
Objectives: To investigate changes in platelet maturity and reactivity after acute STEMI.
Using platelet concentrates to treat maxillofacial tissue lesions.
Front Bioeng Biotechnol
January 2025
State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, China.
Objectives: Platelet concentrates (PCs), which are blood products that are abundant in platelets and growth factors, have become pivotal in treating maxillofacial tissue lesions due to their capacity for promoting bone and soft tissue recovery. This review will provide some recent progress of the use of platelet concentrates to treat lesions on maxillofacial tissues.
Subjects: We reviewed the mechanisms by which PCs promote wound healing and tissue recovery and summarized the application of PCs in the treatment of lesions on maxillofacial tissues, including medication-related osteonecrosis of the jaw, post-extraction wound healing, implant surgery, temporomandibular joint diseases, and periodontal tissue restoration.
The influence of baseline platelet on mortality risk in stroke and cancer patients: a cross-sectional analysis of the NHANES database.
BMC Neurol
January 2025
Department of Neurology, The Second Hospital of Hebei Medical University, NO.309 Zhonghuabei Street, Hebei, 050000, China.
Background: Platelet count and function may be closely related to survival and prognosis of stroke and cancer. However, little is known on the impact of platelet count on the patients with a history of stroke and cancer. This study aimed to examine the association between baseline platelet level and all-cause mortality in this population using a cross-sectional analysis.
View Article and Find Full Text PDFRelationship between platelet distribution width and non-dipping pattern in children with essential hypertension.
BMC Pediatr
January 2025
Department of Cardiology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China.
Background: Hypertension has shown a trend of prevalence at younger ages, and the non-dipping pattern is associated with target organ damage in hypertension. However, few studies have yet investigated the clinical characteristics and risk factors of non-dipper status in essential hypertension children. This study aimed to explore the clinical characteristics and possible indicators associated with non-dipper status in children with essential hypertension.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!