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Published on: October 21, 2021
High concentration of somatostatin-14 neurones in the infant human hippocampus
F Lotstra1, S N Schiffmann, P Mailleux
1Laboratories of Neuropathology and Neuropeptide Research and Pathology and Electron Microscopy, Faculty of Medecine, Erasme and Brugmann Hospitals, Université Libre de Bruxelles, Brussels, Belgium.
Insights
This study maps somatostatin-14 (SRIF-14) in infant brains. SRIF-14 shows concentrated patterns in specific hippocampal and related areas, offering insights into early brain development.
Area of Science:
- Neuroscience
- Developmental Biology
- Neuroanatomy
Background:
- Somatostatin-14 (SRIF-14) plays a role in brain function.
- Understanding its distribution is crucial for developmental neuroscience.
Purpose of the Study:
- To investigate the distribution of somatostatin-14 immunoreactivity (SRIF-14-IR) in the human infant hippocampal formation.
- To identify specific regions with high SRIF-14-IR accumulation.
Main Methods:
- Immunohistochemistry was used to detect SRIF-14-IR.
- The study focused on the hippocampal formation of human infants.
Main Results:
- Prominent SRIF-14-IR cell bodies and processes were observed in the CA1 stratum oriens, dentate hilus, subicular complex, and entorhinal cortex.
- SRIF-14-IR neurons were found in the angular bundle but were rare in the alveus and absent in the fimbria.
Conclusions:
- The distribution pattern of SRIF-14-IR in the human infant brain suggests specific roles in hippocampal circuitry development.
- These findings contribute to understanding the neurochemical landscape of the developing human brain.
Abstract:
The distribution of somatostatin-14 immunoreactivity (SRIF-14-IR) was studied in the hippocampal formation of the human infant. The most prominent accumulation of SRIF-14-IR cell bodies and processes occurred in the CA1 subfield of the stratum oriens in the Ammon's horn, in the hilus of the area dentata, in the deeper layers of the subicular complex and in the entorhinal cortex. SRIF-14-IR neurones are also detected in the angular bundle though they are rare in the alveus and absent in the fimbria.
