Results 51 to 60 of about 64,962 (262)

Sulfakinin Signaling Sense Circulating Fructose and Suppresses Food Consumption via Insulin‐Like Peptide in Bactrocera Dorsalis

open access: yesAdvanced Science, EarlyView.
This study discovered a new pathway that tells fruit flies when to stop eating. It found that rising blood sugar (fructose) is detected by a sensor called GR43a. This triggers a chain reaction involving the satiety signal sulfakinin and its receptor, ultimately activating a final satiety signal, ILP5.
Hong‐Fei Li   +7 more
wiley   +1 more source

Relaciones alométricas en estadios tempranos de la especie Brycon moorei Steindachner (Characidae), en condiciones controladas

open access: yesActualidades Biológicas, 2020
Para Brycon moorei, los datos sobre morfometría, en estados iniciales del desarrollo, son inexistentes. El objetivo de este estudio fue establecer las principales relaciones alométricas en los estadios tempranos de B. moorei.
Carlos Arturo David-Ruales   +6 more
doaj   +1 more source

SR‐B1‐Mediated Transplacental Transfer of Hydrophobic Toxicants Disrupts Fetal Development During Barriergenesis

open access: yesAdvanced Science, EarlyView.
This study maps the spatiotemporal distribution of hydrophobic toxicants and endogenous metabolites in the developing placenta and fetus. By integrating mass spectrometry imaging with snRNA‐seq, we identify SR‐B1 as a key transporter driving early‐gestation xenobiotic transfer and reveal a critical exposure window associated with persistent fetal ...
Yixuan Huang   +10 more
wiley   +1 more source

The larva of Chiron senegalensis and comments on its relationships with other Scarabaeoidea (Coleoptera: Chironidae)

open access: yesEuropean Journal of Entomology, 2002
After a brief presentation of some historical, taxonomical and biological data on the Chironidae, the third instar larva of Chiron senegalensis Hope & Westwood, 1845 is described and illustrated on the basis of larval characteristics.
Jean-Bernard HUCHET, Jean-Pierre LUMARET
doaj   +1 more source

Embedded CRISPRi Enhances Gene‐Silencing Efficiency in Drosophila

open access: yesAdvanced Science, EarlyView.
Current CRISPR interference (CRISPRi) technology in Drosophila has limited efficiency. This study introduces the emCRISPRi platform, which significantly enhances transcriptional silencing efficacy by embedding inhibitory domains within the dCas9 architecture.
Pengchong Fu   +7 more
wiley   +1 more source

Aspectos da dieta de larvas de Astyanax janeiroensis(Eigenmann, 1908) (Osteichthyes, Characidae) no Reservatório de Guaricana, Rio Arraial, Estado do Paraná

open access: yesBoletim do Instituto de Pesca, 2018
Este trabalho discute aspectos da dieta de larvas do lambari Astyanax janeiroensis, capturadas em julho/2001 no Reservatório de Guaricana, Rio Arraial, Paraná. As coletas foram realizadas í­Â s 18h30 e 20h30.
Miriam Santin   +4 more
doaj  

Phylogenetic relationships and larval morphology of the recently described diving beetle genus Laccomimus (Coleoptera: Dytiscidae: Laccophilinae)

open access: yesEuropean Journal of Entomology, 2015
The larvae of the diving beetle genus Laccomimus Toledo & Michat, 2015 (Laccophilinae) are studied for the first time, based on detailed descriptions and illustrations of all instars of L.
Mariano C. MICHAT, Mario TOLEDO
doaj   +1 more source

A Testis‐Specific Aralkylamine N‐Acetyltransferase Regulates Dimorphic Sperm Function and Male Fertility in Moths

open access: yesAdvanced Science, EarlyView.
We identify a Lepidoptera‐conserved testis‐specific arylalkylamine N‐acetyltransferase (LTNAT) that governs male moth fertility via a novel mechanism. LTNAT loss disrupts eupyrene sperm mitochondrial derivatives and impairs apyrene sperm motility, offering a safe molecular target for innovative pesticides and genetic pest control.
Hao Sun   +5 more
wiley   +1 more source

Immature stages of the moth Lobeza dentilinea (Lepidoptera: Notodontidae), with redescription of the species based on male and female morphology

open access: yesZoologia (Curitiba), 2011
Egg and pupa of Lobeza dentilinea Schaus, 1901 are described and illustrated for the first time. Eggs are smooth, dome-shaped, and greenish at oviposition.
Lívia R Pinheiro   +2 more
doaj   +1 more source

Intracellular Aβ42 Sequestration by a Serine Protease Mitigates Neurotoxicity in a Drosophila Alzheimer's Disease Model

open access: yesAdvanced Science, EarlyView.
Emerging evidence suggests that intraneuronal Aβ accumulation represents an early pathogenic event in Alzheimer's disease (AD). Using Drosophila AD model, this study shows that a nonsecreted serine protease Yip7 physically interacts with Aβ. This causes intraneuronal Aβ accumulation but surprisingly reduces the associated neurotoxicity, arguing that ...
Jingyun Su   +4 more
wiley   +1 more source

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