Andreas Markl

Learn More
1. The hemocyanins of 10 decapod Crustacea were dissociated and their subunits analyzed by high resolution polyacrylamide electrophoresis (PAGE): 5 brachyuran crabs (Cancer pagurus, Carcinus maenas, Macropipus holsatus, Hyas araneus, Maja squinado), 3 Astacura (Astacus leptodactylus, Homarus americanus, Homarus gammarus) and the spiny lobstersPalinurus(More)
1. The hemocyanins of 2 spiders (Eurypelma californicum, Cupiennius salei), 2 scorpions (Pandinus pallidus, Androctonus australis), a whipscorption (Mastigoproctus brasilianus) and 2 whipspiders (Tarantula palmata, Trichodamon froesi) were analyzed for subunit heterogeneity by high resolution polyacrylamide electrophoresis (PAGE). For comparison,Limulus(More)
AIMS The metabolic syndrome (MS) leads to myocardial fibrosis (MF) and diastolic dysfunction. Statins have proven beneficial effects in MS, but their impact on cardiac remodelling is uncertain. We examined the effects and mechanisms of chronic statin treatment on cardiac remodelling, e.g. fibrosis and diastolic properties. METHODS AND RESULTS We used a(More)
BACKGROUND β1-2-adrenergic receptors (AR) are key regulators of cardiac contractility and remodeling in response to catecholamines. β3-AR expression is enhanced in diseased human myocardium, but its impact on remodeling is unknown. METHODS AND RESULTS Mice with cardiac myocyte-specific expression of human β3-AR (β3-TG) and wild-type (WT) littermates were(More)
Hyperglycemia in patients with type 2 diabetes causes multiple neuronal complications, e.g., diabetic polyneuropathy, cognitive decline, and embryonic neural crest defects due to increased apoptosis. Possible mechanisms of neuronal response to increased glucose burden are still a matter of debate. Insulin and insulin-like growth factor-1 (IGF-1) receptor(More)
The dipeptide, L-phenylalanyl-L-glutamate (PG), augments the specific binding of the excitatory amino acid receptor antagonist, [3H]2-amino-7-phosphonoheptanoic acid (APH), to rat forebrain membranes by 5-fold at 100 microM with an EC50 of 4.9 microM. The increase in the specific binding of [3H]AHP induced by PG results exclusively from an increase in Bmax.(More)
OBJECTIVE The Concerto Pin is a new cochlear implant system, designed by Med-El to require minimally invasive surgery and to allow greater positional flexibility in its fixation on the skull. The aim of this study was to measure the load needed to displace the implant from a human skull. STUDY DESIGN This was a laboratory investigation under controlled(More)
Although membrane sites from brain, labelled with [3H]glutamate (Glu) under sodium-free conditions, are thought to represent excitatory receptors, certain anomalous characteristics of the kinetics of apparent binding raised the question of whether transport might contribute to this process, prompting a closer examination of it. Hyperosmolar media and low(More)
A simple, inexpensive and reliable microcomputer-assisted method to detect and quantify abnormal EEG spiking is described. High frequency wave forms (20-40 Hz) with high amplitude are discriminated using a beta-2 bandpass filter and a threshold comparater. The spikes are then compiled and reported by an Apple II+ microcomputer. The method was validated by(More)
  • 1