Comparative histological study of hepatic architecture in the three orders amphibian livers

Comparative Hepatology

Table 3 Summary of the expression levels of hepatocyte-sinusoidal structures and hematopoietic tissue structures in livers of Anura species

Order	Order	Species	HSS	Hematopoietic tissue structures
Order	Family	Species	PZ \| CZ	PSR	PTR	IHLN
Anura	Archaeobatrachia
	Discoglossidae	Bombina orientalis	3 \| 3	+	+	+
	Aglossa
	Pipidae	Xenopus laevis	3 \| 2	+	+	+
		Xenopus tropicaris	3 \| 2	+	+	+
	Neobatrachia
	Bufonidae	Bufo gargarizans miyakonis	3 \| 3	-	-	+
		Bufo japonicus japonicus	3 \| 3	-	-	-
		Bufo japonicus formosus	3 \| 3	-	-	-
		Bufo marinus	3 \| 3	-	-	-
	Hylidae
		Hyla japonica	3 \| 3	-	-	-
	Ranidae
		Rana japonica	3 \| 3	-	-	+
		Rana tsushimensis	3 \| 3	-	-	-
		Rana tagoi tagoi	3 \| 3	-	-	+
		Rana tagoi okiensis	3 \| 3	-	-	-
		Rana sakuraii	3 \| 3	-	-	-
		Rana pirica	3 \| 3	-	-	-
		Rana ornativentris	3 \| 3	-	-	+
		Rana nigromaculata	3 \| 3	-	-	+
		Rana porosa brevipoda	3 \| 3	-	-	+
		Rana rugosa	3 \| 3	-	-	+
		Rana catesbeiana	3 \| 3	-	-	-
		Rana limnocharis	3 \| 3	-	-	+
		Rana sp.	3 \| 3	-	-	+
		Rana supranarina	3 \| 3	-	-	-
		Rana utsunomiyaorum	3 \| 3	-	-	-
		Rana psaltes	3 \| 2	-	-	+
		Rana subaspera	3 \| 3	-	-	-
	Rhacophoridae
		Buergeria buergeri	3 \| 3	-	-	+
		Buergeria japonica	3 \| 3	-	-	+
		Rhacophorus arboreus	3 \| 3	-	-	+
		Rhacophorus viridis amamiensis	3 \| 3	-	-	-
		Rhacophorus schlegelii	3 \| 3	-	-
		Rhacophorus owstoni	3 \| 3	-	-	+
	Microhylidae
		Microhyla ornata	3 \| 2	-	-	+

Hepatocyte-sinusoidal structure (HSS): (1) several-cell-thick plate type, (2) two-cell-thick plate type, (3): one-cell-thick plate type. Hematopoietic tissue structures: (−): do not exist, (+): exist. CZ – pericentral zone; IHLN – Inter-hepatic lobular nodule; PZ – periportal zone; PSR – Perihepatic subcapsular region; Portal triad region – PTR.