A5083018425- Insect and Arachnid Ecology and Behavior
- Fossil Insects in Amber
- Plant and animal studies
- Hemiptera Insect Studies
- Reproductive Biology and Fertility
- Plant Reproductive Biology
- Neurobiology and Insect Physiology Research
- Collembola Taxonomy and Ecology Studies
- RNA Research and Splicing
- Synthesis and Characterization of Heterocyclic Compounds
- Synthesis and biological activity
- Developmental Biology and Gene Regulation
- Insect-Plant Interactions and Control
- Marine Biology and Ecology Research
- Crustacean biology and ecology
- Mitochondrial Function and Pathology
- Insect behavior and control techniques
- Marine and coastal plant biology
- Physiological and biochemical adaptations
- Protist diversity and phylogeny
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Plant Molecular Biology Research
- Pancreatic function and diabetes
- Insect symbiosis and bacterial influences
- Sperm and Testicular Function
Jagiellonian University
2013-2024
The University of Texas MD Anderson Cancer Center
2001-2004
In-Q-Tel
2003
Hubrecht Institute for Developmental Biology and Stem Cell Research
1982-1985
The localization of RNA within a cell or embryo is crucial for proper cellular function development. There evidence that the cytoskeleton and may in anchoring localized RNAs at vegetal cortex Xenopus laevis oocytes. We found organization cytokeratin filaments but not actin depends on presence intact VegT mRNA noncoding RNA, Xlsirts. Destruction either these transcripts results disruption transcript-specific manner interferes with formation germinal granules subsequent development germline....
Oocytes of many invertebrate and vertebrate species contain a characteristic organelle complex known as the Balbiani body (Bb). Until now, three principal functions have been ascribed to this complex: delivery germ cell determinants localized RNAs vegetal cortex/posterior pole oocyte, transport mitochondria towards plasm, participation in formation lipid droplets. Here, we present results computer-aided 3D reconstruction Bb growing oocytes an insect, Thermobia domestica. Our analyses shown...
During <I>Xenopus</I>oogenesis, the message transport organizer (METRO) pathway delivers germinal granules and localized RNAs to vegetal cortex of oocyte via mitochondrial cloud (Balbiani body). According traditional model, is thought break up at onset vitellogenesis METRO-localized are transported within fragments oocyte. We used light electron microscopy <I>in situ</I>hybridization three-dimensional reconstruction show that delivered <I>before </I> fragmentation delivery involves...
Background. The failure of pancreatic islet allotransplants observed in almost all clinical attempts is related to poor initial function and allograft rejection. To remedy these problems we cultured islets microgravity conditions improve their reduce immunogenicity. Methods. Fresh mouse or stationary dishes bioreactors were transplanted streptozotocin-induced diabetic recipients. Results. Both allogeneic dish- bioreactor-cultured survived more than 100 days compared with fresh islets, which...
At the turn of 19th century first observations a female-biased sex ratio in broods and populations head louse, Pediculus humanus capitis, had been reported. A study by Buxton 1940 on lice prisoners Ceylon is still today subject reanalyses. This distortion detected ten different countries. In last sixty years no new data have collected, especially scalp infestations under economically socially more developed conditions. Here we report female bias survey 480 school children Argentina....
Oocytes of both vertebrates and invertebrates often contain an intricate organelle assemblage, termed the Balbiani body (Bb). It has previously been suggested that this assemblage is involved in delivery organelles macromolecules to germ plasm, formation oocyte reserve materials, transfer mitochondria next generation. To gain further insight into function Bb, we performed a series analyses experiments, including computer-aided 3-dimensional reconstructions, detection DNA (mtDNA) synthesis as...