We have found that adenine enhanced the purinoceptor-operated cytoplasmic Ca2+ oscillation in rat megakaryocytes at submillimolar concentrations. Guanine and other nucleic acid bases had no effect on this system. Adenine enhanced the reaction intensity but had no effect on the threshold concentration of ATP to evoke the oscillation.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1910359PMC
http://dx.doi.org/10.1111/j.1476-5381.1994.tb13076.xDOI Listing

Publication Analysis

Top Keywords

rat megakaryocytes
8
purinoceptor-operated cytoplasmic
8
cytoplasmic ca2+
8
ca2+ oscillation
8
adenine enhanced
8
biological actions
4
actions purines
4
purines rat
4
megakaryocytes potentiation
4
potentiation adenine
4

Similar Publications

Achieving bone union remains a significant clinical dilemma. The use of osteoinductive agents, specifically bone morphogenetic proteins (BMPs), has gained wide attention. However, multiple side effects, including increased incidence of cancer, have renewed interest in investigating alternatives that provide safer, yet effective bone regeneration.

View Article and Find Full Text PDF

Introduction: Platelet-rich plasma obtained by centrifuging peripheral blood can promote osteogenesis owing to its abundant growth factors but has drawbacks, including rapid growth factor loss and inconsistent effects depending on donor factors. To overcome these issues, we were the first in the world to use freeze-dried human induced pluripotent stem cell-derived megakaryocytes and platelets (S-FD-iMPs) and found that they have osteogenesis-promoting effects. Since turbulence was found to activate platelet biogenesis and iPS cell-derived platelets can now be produced on a clinical scale by a device called VerMES, this study examined the osteogenesis-promoting effect and safety of clinical-scale FD-iMP (V-FD-iMPs) for future human clinical application.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how mild gestational diabetes mellitus (GDM) affects the fetal liver by analyzing tissue samples from pregnant rats with induced mild hyperglycemia.
  • Various histological techniques revealed significant changes in the liver tissue of GDM-affected fetuses, including abnormal cell structures and presence of fibrosis.
  • The findings indicate that mild GDM leads to noticeable alterations in liver morphology and structure, potentially impacting fetal health.
View Article and Find Full Text PDF

Calvarial bone marrow has been found to be central in the brain immune response, being connected to the dura through channels which allow leukocyte trafficking. Temporal bone marrow is thought to play important roles in relation to the inner ear, but is still largely uncharacterized, given this bone complex anatomy. We characterized the geometry and connectivity of rat temporal bone marrow using lightsheet imaging of cleared samples and microCT.

View Article and Find Full Text PDF

Daucosterol regulates JAK2-STAT3 signaling pathway to promote megakaryocyte differentiation.

Blood Cells Mol Dis

July 2024

Key Laboratory of Traditional Chinese Medicine Etiology and Pathogenesis in Jiangxi Province, Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, School of Chinese Medicine, Jiangxi University of Chinese Medicine, Nanchang 330004, China. Electronic address:

Immune thrombocytopenia (ITP) is an autoimmune disease caused by the loss of immune tolerance to platelet autoantigens, resulting in reduced platelet production and increased platelet destruction. Impaired megakaryocyte differentiation and maturation is a key factor in the pathogenesis and treatment of ITP. Sarcandra glabra, a plant of the Chloranthaceae family, is commonly used in clinical practice to treat ITP, and daucosterol (Dau) is one of its active ingredients.

View Article and Find Full Text PDF

Want 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!