Results 131 to 140 of about 223,364 (391)

Description of the tadpole of Cochranella resplendens and redescription of the tadpole of Hyalinobatrachium aureoguttatum (Anura, Centrolenidae) [PDF]

open access: yesPhyllomedusa: Journal of Herpetology, 2009
The tadpole of Cochranella resplendens is described and that of Hyalinobatrachium aureoguttatum is redescribed; information on their ontogenetic variation also is included.
Andrea Terán-Valdez   +2 more
doaj  

Epigenetic Regulation of the Ontogenic Expression of the Dopamine Transporter

open access: yesFrontiers in Genetics, 2019
The dopamine transporter (DAT) is a plasma membrane transport protein responsible for regulating the duration and intensity of dopaminergic signaling.
Ashley L. Green   +7 more
doaj   +1 more source

Novas perspectivas no diagnóstico do hipogonadismo pediátrico masculino: a importância do AMH como marcador de células de Sertoli [PDF]

open access: yes, 2011
Sertoli cells are the most active cell population in the testis during infancy and childhood. In these periods of life, hypogonadism can only be evidenced without stimulation tests, if Sertoli cell function is assessed.
Grinspon, Romina, Rey, Rodolfo Alberto
core   +2 more sources

Thermostable neutral metalloprotease from Geobacillus sp. EA1 does not share thermolysin's preference for substrates with leucine at the P1′ position

open access: yesFEBS Letters, EarlyView.
Knowing how proteases recognise preferred substrates facilitates matching proteases to applications. The S1′ pocket of protease EA1 directs cleavage to the N‐terminal side of hydrophobic residues, particularly leucine. The S1′ pocket of thermolysin differs from EA's at only one position (leucine in place of phenylalanine), which decreases cleavage ...
Grant R. Broomfield   +3 more
wiley   +1 more source

Do APOE4 and long COVID-19 increase the risk for neurodegenerative diseases in adverse environments and poverty?

open access: yesFrontiers in Neuroscience, 2023
Gabriella C. V. Ciurleo   +5 more
doaj   +1 more source

Ontogeny and Polarization of Macrophages in Inflammation: Blood Monocytes Versus Tissue Macrophages

open access: yesFrontiers in Immunology, 2015
The explosion of new information in recent years on the origin of macrophages in the steady-state and in the context of inflammation has opened up numerous new avenues of investigation and possibilities for therapeutic intervention.
Adwitia Dey   +2 more
semanticscholar   +1 more source

Finite-element modelling of mechanobiological factors influencing sesamoid tissue morphology in the patellar tendon of an ostrich [PDF]

open access: yes, 2017
The appearance and shape of sesamoid bones within a tendon or ligament wrapping around a joint are understood to be influenced by both genetic and epigenetic factors.
Carter DR   +6 more
core   +1 more source

Redox‐dependent binding and conformational equilibria govern the fluorescence decay of NAD(P)H in living cells

open access: yesFEBS Letters, EarlyView.
In this work, we reveal how different enzyme binding configurations influence the fluorescence decay of NAD(P)H in live cells using time‐resolved anisotropy imaging and fluorescence lifetime imaging microscopy (FLIM). Mathematical modelling shows that the redox states of the NAD and NADP pools govern these configurations, shaping their fluorescence ...
Thomas S. Blacker   +8 more
wiley   +1 more source

Structure and development of fruits and seeds of weed species of Euphorbiaceae Estrutura e desenvolvimento de frutos e sementes de espécies invasoras de Euphorbiaceae

open access: yesActa Botânica Brasílica, 2012
Euphorbiaceae s.l. presents several morphological types of fruits, of which the schizocarp is the most common. The fruits of weed species of Euphorbia graminea Jacq., Euphorbia heterophylla L., Euphorbia hirta L.
Karina Bertechine Gagliardi   +4 more
doaj   +1 more source

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