Table 1.

Regional heterogeneity of astrocytes in the African giant rats (AGR) brain.

Region	Astrocyte subtypes
	Radial	Bergmann glia	Protoplasmic	Fibrous	Velate	Marginal	Perivascular	Periventricular
Olfactory bulb (OB)	+		+	+	+/–
RMS				+
Cortex			+		+/–		+
Pial surface				+		+
Corpus callosum	+			+
Lateral ventricle/SVZ	+
Third ventricle	+							+
Hippocampus			+	+	+/–
DG	+		+
Cerebellum		+			+/–
Brainstem				+	+/–

Astrocyte heterogeneity in juvenile and adult groups revealed eight subtypes to include fibrous astrocytes predominantly in the corpus callosum and brain stem, protoplasmic astrocytes in the cortex and dentate gyrus (DG) and hippocampus; radial glia were found along the olfactory bulb (OB) and subventricular zone (SVZ); velate astrocytes were particularly found in the cerebellum and hippocampus; marginal astrocytes close to the pia mater; Bergmann glia in the molecular layer of the cerebellum; perivascular, and periventricular astrocytes in the cortex and third ventricle, respectively.