J
John Welsh
Researcher at University of Pennsylvania
Publications - 77
Citations - 3085
John Welsh is an academic researcher from University of Pennsylvania. The author has contributed to research in topics: Platelet activation & Gene. The author has an hindex of 26, co-authored 73 publications receiving 2868 citations. Previous affiliations of John Welsh include National University of Singapore & Virginia Tech.
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Journal ArticleDOI
Genomic fingerprinting using arbitrarily primed PCR and a matrix of pairwise combinations of primers.
John Welsh,Michael McClelland +1 more
TL;DR: This principle is demonstrated by using two oligos, alone and together, to generate three sets of fingerprints and map thirteen polymorphisms in the C57BL/6J x DBA/2J set of recombinant inbred mice.
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Genomic fingerprinting by arbitrarily primed polymerase chain reaction resolves Borrelia burgdorferi into three distinct phyletic groups.
TL;DR: Using genomic fingerprinting by an arbitrarily primed polymerase chain reaction, a collection of Eurasian and North American isolates of spirochetes that are generally categorized as B. burgdorferi are resolved into three groups.
Journal ArticleDOI
A systems approach to hemostasis: 1. The interdependence of thrombus architecture and agonist movements in the gaps between platelets
John Welsh,Timothy J. Stalker,Roman S. Voronov,Ryan W. Muthard,Maurizio Tomaiuolo,Scott L. Diamond,Lawrence F. Brass +6 more
TL;DR: From a systems perspective, platelet accumulation produces an altered microenvironment that shapes thrombus architecture, which in turn affects agonist distribution and subsequent thrombin accumulation and growth of the core.
Journal ArticleDOI
A systems approach to hemostasis: 3. Thrombus consolidation regulates intrathrombus solute transport and local thrombin activity
Timothy J. Stalker,John Welsh,Maurizio Tomaiuolo,Jie Wu,Thomas V. Colace,Scott L. Diamond,Lawrence F. Brass +6 more
TL;DR: It is demonstrated that in addition to the activation state of individual platelets, the physical properties of the accumulated mass of adherent platelets is critical in determining intrathrombus agonist distribution and platelet activation and a novel role for integrin signaling is defined in the regulation of intrathrubus transport rates and localization of thrombin activity.
Journal ArticleDOI
Vav3 Mediates Receptor Protein Tyrosine Kinase Signaling, Regulates GTPase Activity, Modulates Cell Morphology, and Induces Cell Transformation
Liyu Zeng,Pallavi Sachdev,Lunbiao Yan,Joseph L.-K. Chan,Thomas Trenkle,Michael McClelland,John Welsh,Lu-Hai Wang +7 more
TL;DR: It is concluded that Vav3 mediates RPTK signaling and regulates GTPase activity, its native and mutant forms are able to modulate cell morphology, and it has the potential to induce cell transformation.