Proctolin and an Endogenous Proctolin-Like Peptide Enhance the Contractility of the Limulus Heart [PDF]
Synthetic proctolin increases the force but not the rate of heart contractions of Limulus in a time- and dose-dependent manner. The threshold of this effect is 3 × 10−10M and the ED50 is approximately 10−8M. At concentrations up to 10−7 M, proctolin has
Augustine, George J.+2 more
core +2 more sources
Subthalamic Nucleus Oscillatory Characteristics in Meige, Cervical Dystonia and Generalized Dystonia
ABSTRACT Objective Deep brain stimulation offers a unique opportunity to record neural activity of the basal ganglia. While much work in dystonia has focused on the globus pallidus internus, expanding research to investigate subthalamic nucleus (STN) activity in various dystonia types is critical to provide a comprehensive understanding of dystonia ...
Zhu Guan‐Yu+14 more
wiley +1 more source
Elevated expression of human bHLH factor ATOH7 accelerates cell cycle progression of progenitors and enhances production of avian retinal ganglion cells. [PDF]
The production of vertebrate retinal projection neurons, retinal ganglion cells (RGCs), is regulated by cell-intrinsic determinants and cell-to-cell signaling events.
Hashimoto, Takao+3 more
core +1 more source
Axotomy results in delayed death and apoptosis of retinal ganglion cells in adult rats
Using quantitative anatomical techniques, we show that after intraorbital optic nerve transection in adult rats, virtually all retinal ganglion cells (RGCs) survive for 5 d and then die abruptly in large numbers, reducing the RGC population to ...
M. Berkelaar+4 more
semanticscholar +1 more source
Compound Heterozygous MRPS14 Variants Associated With Leigh Syndrome
ABSTRACT MRPS14 (uS14m) is a nuclear‐encoded ribosomal protein important for mitochondria‐specific translation. To date, only a single individual with a recessive MRPS14‐related disorder (also known as COXPD38) has been reported. We report an additional subject possessing novel compound heterozygous MRPS14 variants (p.Asp37Asn, p.Asn60Asp). The subject
Maria Gabriela Otero+15 more
wiley +1 more source
Volume density of respiratory organs was studied in vitro in newborn babies at different age of gestation (abort, immature, premature and mature) using stereometric method. The total of 23 cases was subject to this study. The respiratory organs (trachea,
Ragip Shabani+8 more
doaj +1 more source
Differential response of the retinal neural code with respect to the sparseness of natural images [PDF]
Natural images follow statistics inherited by the structure of our physical (visual) environment. In particular, a prominent facet of this structure is that images can be described by a relatively sparse number of features. To investigate the role of this sparseness in the efficiency of the neural code, we designed a new class of random textured ...
arxiv +1 more source
Neural tube-ectoderm interactions are required for trigeminal placode formation [PDF]
Cranial sensory ganglia in vertebrates develop from the ectodermal placodes, the neural crest, or both. Although much is known about the neural crest contribution to cranial ganglia, relatively little is known about how placode cells form, invaginate and
Bronner-Fraser, Marianne+3 more
core
Dendritic and axonal targeting patterns of a genetically-specified class of retinal ganglion cells that participate in image-forming circuits. [PDF]
BackgroundThere are numerous functional types of retinal ganglion cells (RGCs), each participating in circuits that encode a specific aspect of the visual scene.
Feldheim, David A+6 more
core +2 more sources
Current and Future Cornea Chip Models for Advancing Ophthalmic Research and Therapeutics
This review analyzes cornea chip technology as an innovative solution to corneal blindness and tissue scarcity. The examination encompasses recent developments in biomaterial design and fabrication methods replicating corneal architecture, highlighting applications in drug screening and disease modeling while addressing key challenges in mimicking ...
Minju Kim+3 more
wiley +1 more source