Results 11 to 20 of about 45,826 (216)

Abnormal Epigenetic Regulation of Immune System during Aging

Frontiers in Immunology, 2018
Epigenetics refers to the study of mechanisms controlling the chromatin structure, which has fundamental role in the regulation of gene expression and genome stability.
Miriam G. Jasiulionis
doaj   +1 more source

On growth and form of irregular coiled-shell of a terrestrial snail: Plectostoma concinnum (Fulton, 1901) (Mollusca: Caenogastropoda: Diplommatinidae) [PDF]

PeerJ, 2014
The molluscan shell can be viewed as a petrified representation of the organism’s ontogeny and thus can be used as a record of changes in form during growth.
Thor-Seng Liew, Annebelle C.M. Kok, Menno Schilthuizen, Severine Urdy   +3 more
doaj   +2 more sources

Analysis of the Spatiotemporal Development of Hematopoietic Stem and Progenitor Cells in the Early Human Embryo

Stem Cell Reports, 2019
Summary: Definitive hematopoietic stem cells (HSCs) first emerge in the aorta-gonad-mesonephros (AGM) region in both mice and humans. An ex vivo culture approach has enabled recapitulation and analysis of murine HSC development.
Jennifer Easterbrook, Stanislav Rybtsov, Sabrina Gordon-Keylock, Andrejs Ivanovs, Samir Taoudi, Richard A. Anderson, Alexander Medvinsky   +6 more
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Ontogenesis of the asymmetric parapineal organ in the zebrafish epithalamus

Frontiers in Cell and Developmental Biology, 2022
The parapineal organ is a midline-derived epithalamic structure that in zebrafish adopts a left-sided position at embryonic stages to promote the development of left-right asymmetries in the habenular nuclei.
Karina Palma, Karina Palma, Iskra A. Signore, Iskra A. Signore, Margarita M. Meynard, Margarita M. Meynard, Margarita M. Meynard, Jazmin Ibarra, Jazmin Ibarra, Lorena Armijo-Weingart, Marcos Cayuleo, Marcos Cayuleo, Steffen Härtel, Steffen Härtel, Steffen Härtel, Miguel L. Concha, Miguel L. Concha, Miguel L. Concha   +17 more
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THE FIRST FOSSIL RECORD OF A MANTIS LACEWING PUPA, AND A REVIEW OF PUPAE IN MANTISPIDAE AND THEIR EVOLUTIONARY SIGNIFICANCE

Rivista Italiana di Paleontologia e Stratigrafia, 2023
During ontogenetic development, insects can undergo quite drastic changes (metamorphosis) until the adult stage is reached. A substantial part of this development in one group of Insecta, Holometabola, takes place during the pupa stage. Despite the pupa
Carolin Haug, RICARDO PÉREZ-DE LA FUENTE, VIKTOR BARANOV, GIDEON T. HAUG, CHRISTINE KIESMÜLLER, ANA ZIPPEL, MARIE K. HÖRNIG, JOACHIM T. HAUG   +7 more
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Treatment of Severe Refractory Hematuria due to Radiation-Induced Hemorrhagic Cystitis with Dexamethasone

Case Reports in Medicine, 2017
Treatment of pelvic neoplasms with radiotherapy may develop sequelae, especially RHC. An 85-year-old male patient was admitted to a hospital emergency with gross hematuria leading to urinary retention and was diagnosed with RHC.
José Carlos Rodrigues Nascimento, Márcio Wilker Soares Campelo, Iuri Arruda Aragão, José Fernando Bastos de Moura, Lúcio Flávio Gonzaga Silva, Reinaldo Barreto Oriá   +5 more
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Ontogenetic Patterns of Elemental Tracers in the Vertebrae Cartilage of Coastal and Oceanic Sharks

Frontiers in Marine Science, 2021
As predators, coastal and oceanic sharks play critical roles in shaping ecosystem structure and function, but most shark species are highly susceptible to population declines.
Mariah C. Livernois, John A. Mohan, Thomas C. TinHan, Travis M. Richards, Brett J. Falterman, Nathan R. Miller, R. J. David Wells, R. J. David Wells   +7 more
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Plasma Adenosine Deaminase (ADA)-1 and -2 Demonstrate Robust Ontogeny Across the First Four Months of Human Life

Frontiers in Immunology, 2021
BackgroundHuman adenosine deaminases (ADAs) modulate the immune response: ADA1 via metabolizing adenosine, a purine metabolite that inhibits pro-inflammatory and Th1 cytokine production, and the multi-functional ADA2, by enhancing T-cell proliferation ...
Oludare A. Odumade, Oludare A. Odumade, Oludare A. Odumade, Alec L. Plotkin, Jensen Pak, Olubukola T. Idoko, Olubukola T. Idoko, Olubukola T. Idoko, Matthew A. Pettengill, Matthew A. Pettengill, Tobias R. Kollmann, Al Ozonoff, Al Ozonoff, Beate Kampmann, Beate Kampmann, Ofer Levy, Ofer Levy, Ofer Levy, Kinga K. Smolen, Kinga K. Smolen   +19 more
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Ontogeny of the ostracod Conchoprimitia osekensis (Pribyl, 1979) from the Darriwilian of the Prague Basin (Czech Republic) [PDF]

Estonian Journal of Earth Sciences, 2014
The ontogeny of the species Conchoprimitia osekensis (Pribyl, 1979) from the Šárka Formation (lower and middle Darriwilian) is evaluated. Eight ontogenetic stages (A-8 to A-1) and one adult specimen are described and illustrated. This study displays that
Karolína Lajblová, Petr Kraft, Tõnu Meidla   +2 more
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Advances in proteomics: characterization of the innate immune system after birth and during inflammation

Frontiers in Immunology, 2023
Proteomics is the characterization of the protein composition, the proteome, of a biological sample. It involves the large-scale identification and quantification of proteins, peptides, and post-translational modifications.
Tue Bjerg Bennike
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