Zur Topik und feineren Histologie der vegetativen Kerne des Zwischenhirns

The Hypothalamus of the Beaked Whales: The Paraventricular, Supraoptic, and Suprachiasmatic Nuclei

“…SON was mostly populated by magnocellular neurons, which are easily detectable with Nissl staining. The hyperchromatic magnocellular neurons in the SON and PVN have been reported in other mammals, including humans [41,42], and were initially characterized by Gagel in 1928 [41].…”

Neuropeptides of the human magnocellular hypothalamus

“…The hypothalamus contains highly conserved neural circuitry that controls a variety of basic life functions. Although there are some discrepancies about its regional subdivision (Brockhaus, 1942;Diepen, 1962;Gagel, 1928;Le Gros Clark, 1938), most authors agree in dividing the vertebrate hypothalamus into main tree regions, that, from rostral to caudal position, are the chiasmatic, the mammillary, and the tuberal regions (Braak and Braak, 1987). While the majorityof the hypothalamus is poorly myelinated, the mamillary region, which separates the other two regions, is rich in myelinated fibers (Braak and Braak, 1987;Diepen, 1962;Wahren, 1959).…”

“…As mentioned above, beyond the classic magnocellular nuclei of the hypothalamus, several magnocellular neurons are located outside the PVH and SON. These ectopic neurosecretory cells constitute the so-called accessory magnocellular neurosecretory nuclei of the hypothalamus, first described in the human brain by Gagel in 1928 (Braak andBraak, 1987;Gagel, 1928;Krolewski et al, 2010;Saper, 2012). They are mainly located in the area between PVH and SON, where they form clusters linking the two nuclei Braak, 1987, 1992).…”

A Critical Review: Some Aspects of the Structure of the Hypothalamus

“…The cells stain poorly, are mostly smaller, and polygonal in form, though some of the cells in the periphery may be larger. The cells have a vesicular nucleus and contain a yellowish lipoid pigment, shown by Gagel (1928) to stain with fat stains. The ground substance of the nuclear groups is paler than the surrounding substance and " foamy " in character.…”