Results 81 to 90 of about 578,888 (312)

Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs

open access: yesAdvanced Science, EarlyView.
Paternal circadian disruption remodels the sperm small RNA payload, elevating miR‐92a‐3p/miR‐25‐3p levels and perturbing early embryonic gene regulatory programs. Microinjection experiments and single‐embryo transcriptomics reveal sex‐specific developmental vulnerabilities, ultimately impairing offspring hippocampal synaptic plasticity and cognition ...
Kexin Zou   +22 more
wiley   +1 more source

Aseguramiento de flujo en el transporte de petróleo pesado – disminución de caudal

open access: yesIngenio, 2018
La investigación demanda para su estudio el análisis de los diferentes caudales de producción de petróleo pesado con diferentes calidades API, por lo que para tal efecto se considera condiciones actuales de transporte de fluido por el oleoducto.
Mónica Alexandra Zambrano Armijos
doaj  

A randomized double-blinded comparison between dexmedetomidine and clonidine as an adjuvant to caudal ropivacaine in children for below umbilical surgery

open access: yesJournal of Clinical Sciences, 2017
Background: Alpha-2 adenoreceptors as an adjuvant to local anesthetic during caudal analgesia in children prolongs the duration of analgesia. This study was designed to compare the analgesic efficacy and adverse effects of dexmedetomidine and clonidine ...
Ganapathi Mavuri   +4 more
doaj   +1 more source

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

open access: yesAdvanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen   +13 more
wiley   +1 more source

Caudal : elementos esenciales de caudales ambientales [PDF]

open access: yes, 2005
An environmental flow is the water regime provided within a river, wetland or coastal zone to maintain ecosystems and their benefits where there are competing water uses and where flows are regulated. Pioneering efforts in South Africa, Australia and the United States have shown that the process to establish them poses great challenges.
openaire   +1 more source

Vital dye labelling demonstrates a sacral neural crest contribution to the enteric nervous system of chick and mouse embryos [PDF]

open access: yes, 1991
We have used the vital dye, DiI, to analyze the contribution of sacral neural crest cells to the enteric nervous system in chick and mouse embryos. In order to label premigratory sacral neural crest cells selectively, DiI was injected into the lumen of ...
Bronner-Fraser, Marianne   +3 more
core  

Neuronal Control of Swimming Behavior: Comparison of Vertebrate and Invertebrate Model Systems [PDF]

open access: yes, 2011
Swimming movements in the leech and lamprey are highly analogous, and lack homology. Thus, similarities in mechanisms must arise from convergent evolution rather than from common ancestry.
Buchanan, James T.   +3 more
core   +2 more sources

A Tac1‐Expressing Brainstem Pathway Underlies the Pathogenesis of Trigeminal Neuralgia

open access: yesAdvanced Science, EarlyView.
A critical TG‐Sp5CTac1‐PBNTac1 pathway drives trigeminal neuropathic pain (TNP). Tac1‐expressing parabrachial nucleus (PBNTac1) neurons exhibit heightened responses to innocuous stimuli in TNP, and chemogenetic inhibition of these neurons effectively prevents TNP development.
Liting Sun   +11 more
wiley   +1 more source

MRI and clinical characteristics of suspected cerebrovascular accident in nine cats [PDF]

open access: yes, 2017
Objectives Cerebrovascular accidents (CVAs) are infrequently reported in cats. To date, clinical characteristics, including lesion localisation and MRI findings, have only been reported in two cats.
Beltran, E, Drees, R, Wittaker, D E
core   +2 more sources

Targeting the PDK1/c‐Myc/SOX10 Signaling in Oligodendrocytes Alleviates Neuropathic Pain

open access: yesAdvanced Science, EarlyView.
This work reveals that oligodendrocyte homeostasis, mediated by PDK1, is a critical determinant of neuropathic pain (NPP) pathogenesis. Disruption of PDK1 in oligodendrocytes impairs SOX10‐dependent myelination programs through c‐Myc accumulation, leading to disrupted myelination and the pathophysiology of NPP.
Pingping Qiao   +7 more
wiley   +1 more source

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