Results 111 to 120 of about 193,799 (312)

Ultrastructural, autoradiographic and electrophoretic examinations of Chara tomentosa spermiogenesis

open access: yesActa Societatis Botanicorum Poloniae, 2014
Ultrastructure of a spermatid nucleus changes many times during spermiogenesis. Condensed chromatin forms irregular clusters during phases I-II, a continuous ring adjacent to a nuclear envelope during phases III-V and a network occupying the whole ...
Maria Kwiatkowska   +2 more
doaj   +1 more source

Lateral Thinking: Exploring the Lateral Entorhinal Cortex Projections to the Hippocampus in the Rodent Brain

open access: yesJournal of Comparative Neurology, Volume 533, Issue 7, July 2025.
Localization and layers of the lateral entorhinal cortex. Photomicrographs depicting both coronal (A: 1–4) and sagittal (B: 5–8) sections from a mouse brain to show different perspectives of the entorhinal cortex inputs to the hippocampus (HC). Sections were stained with toluidine blue to aid with the visualization of the six layers of the lateral ...
Rebecca Przy   +4 more
wiley   +1 more source

11C-Autoradiographs to Image Phloem Loading

open access: yesFrontiers in Forests and Global Change, 2019
Generally, tree species load photoassimilates passively into the phloem, while herbaceous species load actively. These phloem loading strategies have implications for phloem sugar concentration and growth potential.
Michiel Hubeau   +9 more
doaj   +1 more source

The Exosome Subunit Rrp44 Plays a Direct Role in RNA Substrate Recognition [PDF]

open access: yes, 2007
The exosome plays key roles in RNA maturation and surveillance, but it is unclear how target RNAs are identified. We report the functional characterization of the yeast exosome component Rrp44, a member of the RNase II family.
Anderson, James T.   +2 more
core   +2 more sources

Autoradiography of the Isolated Nephron.

open access: yesExperimental Biology and Medicine, 1959
SummaryA method is described in which the combination of microdissection and a stripping film technic has provided autoradiograms of the isolated nephron. Accurate localization of site of action of suitable tagged materials was obtained. For example, after injection of C14 Vit.
Fay Stranack, E. M. Darmady
openaire   +3 more sources

The Effect of Vincristine Sulphate on the Axoplasmic Flow of Proteins in Cultured Sympathetic Neurons [PDF]

open access: yes, 1973
The effect of vincristine sulphate on the axoplasmic flow of labelled proteins in neurites of chick embryo sympathetic neurons growing in tissue culture was studied by autoradiography.
England, J. M.   +2 more
core  

A semi-automated non-radiactive system for measuring recovery of RNA synthesis and unscheduled DNA synthesis using ethynyluracil derivatives [PDF]

open access: yes, 2010
Nucleotide excision repair (NER) removes the major UV-photolesions from cellular DNA. In humans, compromised NER activity is the cause of several photosensitive diseases, one of which is the skin-cancer predisposition disorder, xeroderma pigmentosum (XP).
Alan R. Lehmann   +27 more
core   +3 more sources

Cannabinoid receptor localization in brain.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1990
[3H]CP 55,940, a radiolabeled synthetic cannabinoid, which is 10-100 times more potent in vivo than delta 9-tetrahydrocannabinol, was used to characterize and localize a specific cannabinoid receptor in brain sections.
M. Herkenham   +6 more
semanticscholar   +1 more source

Mitochondrial DNA synthesis studied autoradiographically in various cell types in vivo

open access: yesBrazilian Journal of Medical and Biological Research, 1998
It is generally accepted that mitochondria are able to proliferate even in postmitotic cells due to their natural turnover and also to satisfy increased cell energy requirements.
H. Korr   +4 more
doaj   +1 more source

Alterations in Cerebral Blood Flow and Glucose Utilization in Mice Overexpressing the Amyloid Precursor Protein

open access: yesNeurobiology of Disease, 2002
We have used quantitative autoradiographic techniques to study the relationship between cerebral blood flow (CBF) and glucose utilization (CGU) in two lines of transgenic mice overexpressing Swedish mutant amyloid precursor protein (APP) and APP-derived ...
Kiyoshi Niwa   +4 more
doaj  

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