Search results for "Pith"
showing 8 items of 1308 documents
Crystal inclusions in subepithelial fibroblasts of the brood pouch of sea horses (hippocampus kuda)
1968
In the subepithelial connective tissue of the inactive broodpouch of sea horses (Hippocampus kuda), fibroblasts with striking crystal inclusions are described light microscopically and electron microscopically in the tunica adventitia of capillaries. These very electron dense crystals turn out to be hexagonal prisms of heterogeneous structures. Results of the X-ray microanalysis and comparison with other crystalline cell inclusions so far described allow the conclusion that they contain an iron protein stored as crystals. The structure and genesis of these crystals as well as the possible importance of the iron protein for the biology of these animals are discussed.
CCDC 1508362: Experimental Crystal Structure Determination
2017
Related Article: Virginia Valderrey, Aurelio Bonasera, Sebastian Fredrich, Stefan Hecht|2017|Angew.Chem.,Int.Ed.|56|1914|doi:10.1002/anie.201609989
Data from: Moving in the Anthropocene: global reductions in terrestrial mammalian movements
2019
Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of the anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database of 803 individuals across 57 species, we found that movements of mammals in areas with a comparatively high human footprint were on average one-half to one-third the extent of their movements in areas with a low human footprint. We attribute this reduction to behavioral changes of individual animals and to the exclusion of species with long-range movements from areas with higher human impact. Global loss of vagility alters a key ecological trait of animals that affects no…
Data from: Not only for egg yolk - functional and evolutionary insights from expression, selection and structural analyses of Formica ant vitellogeni…
2015
Vitellogenin, a storage protein, has been extensively studied for its egg-yolk precursor role, and it has been suggested to be fundamentally involved in caste differences in social insects. More than one vitellogenin copy has been reported in several oviparous species, including ants. However, the number and function of different vitellogenins, their phylogenetic relatedness and their role in reproductive queens and non-reproductive workers has been studied in few species only. We studied caste biased expression of vitellogenins in seven Formica ant species. Only one copy of conventional vitellogenin was identified in Formica species, and three vitellogenin homologues, derived from ancient …
Preliminary data on cytogenetics and cytotaxonomy of Cercopithecus albogoularis labiatus (Samango monkey)
2010
Preliminary data on cytogenetics and cytotaxonomy of Cercopithecus albogoularis labiatus (Samango monkey) L. Sineo1, M. Roccella1, B. Picone1, R. Stanyon2, F. Genin3 and J. Masters 3 1Dipartimento di Biologia animale, Università di Palermo, Italia; 2Dipartimento di Biologia evoluzionistica, Università di Firenze, Italia; 3Department of Zoology and Entomology, University of Fort Hare, Alice, South Africa The systematic status and phylogenetic relationships of the C. mitis “species group” are contentious. The species group effectively includes very different species (C. nictitans, C. mitis, and C. albogularis) with wide, reciprocally remote distribution in Africa, and high regional variabilit…
Gene expression in TGFbeta-induced epithelial cell differentiation in a three-dimensional intestinal epithelial cell differentiation model
2006
Background. The TGFβ1-induced signal transduction processes involved in growth and differentiation are only partly known. The three-dimensional epithelial differentiation model, in which T84 epithelial cells are induced to differentiate either with TGFβ1 or IMR-90 mesenchymal cell-secreted soluble factors, is previously shown to model epithelial cell differentiation seen in intestine. That model has not been used for large scale gene expression studies, such as microarray method. Therefore the gene expression changes were studied in undifferentiated and differentiated three-dimensional T84 cultures with cDNA microarray method in order to study the molecular changes and find new players in e…
β2long-acting and anticholinergic drugs synergistically control TGFβ1-mediated neutrophilic inflammation in COPD: an “in vitro” model.
2011
TGFβ1 is involved in airway inflammation in COPD and in the regulation of muscarinic receptors (mAChRs) expression. We quantified TGFβ1 and Acetylcholine (ACh) concentrations in induced sputum supernatants (ISs) from 10 Healthy Controls (HC), 14 Healthy Smokers (HS) and 16 COPDs. We tested: 1) ISs from HC, HS and COPD on neutrophil adhesion to human bronchial epithelial cells (16HBE) in the presence or absence of an anti-TGFβ1ab or Olodaterol (β2-adrenoceptor agonist) and Tiotropium (Spiriva®) alone or in combination; 2) ISs from COPD on mAChRs expression in 16HBE in the presence or absence of anti-TGFβ1-antibody and Olodaterol; 3) hrTGFβ1on neutrophil adhesion and mChRs and ChAT expression…