Presynaptic quantal size enhancement counteracts post-tetanic release depression.

Repetitive synaptic stimulation can induce different forms of synaptic plasticity but may also limit the robustness of synaptic transmission by exhausting key resources. Little is known about how synaptic transmission is stabilized after high-frequency stimulation. In the present study, we observed that tetanic stimulation of the Drosophila neuromuscular junction (NMJ) decreases quantal content, release-ready vesicle pool size and synaptic vesicle density for minutes after stimulation.

Specialized programs employing different models of care delivery work collaboratively to address the health care needs of children in foster care.

Specialized knowledge and skills applicable to caring for children in foster care include guidelines developed to address this population's special health care needs, cross-system collaboration, and helping families cope with the health impacts of trauma. This paper begins with a review of the special health care needs of children in foster care and relevant guidelines. We discuss different models of health care delivery that can be employed to meet the special health care needs of children in foster care.

Circadian regulation of vertebrate cone photoreceptor function.

Eukaryotes generally display a circadian rhythm as an adaption to the reoccurring day/night cycle. This is particularly true for visual physiology that is directly affected by changing light conditions. Here we investigate the influence of the circadian rhythm on the expression and function of visual transduction cascade regulators in diurnal zebrafish and nocturnal mice.

Promoting resilience in vulnerable populations: focus on opioid-exposed children, siblings of children with special healthcare needs and support for children through school-based interventions.

Purpose Of Review: Resilience is an important factor in withstanding the health consequences of childhood adversity. This article discusses recent literature related to promoting resilience in opioid-exposed children and siblings of children with special healthcare needs. It also addresses ways that school systems can foster childhood resilience.

Recoverin depletion accelerates cone photoresponse recovery.

The neuronal Ca(2+)-binding protein Recoverin has been shown to regulate phototransduction termination in mammalian rods. Here we identify four recoverin genes in the zebrafish genome, rcv1a, rcv1b, rcv2a and rcv2b, and investigate their role in modulating the cone phototransduction cascade. While Recoverin-1b is only found in the adult retina, the other Recoverins are expressed throughout development in all four cone types, except Recoverin-1a, which is expressed only in rods and UV cones.