Table 1.

Ghrelin receptor expression in bone.

This study	Method	Result
Primary tissue
Human osteoblasts (n = 10)	Quantitative PCR	3/10 positive
Human bone marrow (n = 16)		4/16 positive
Mouse bone marrow		Negative
Rat osteoblastic cells		Negative
Mouse hypothalamus		Positive
Cell lines
Mouse osteoblastic MC3T3-E1		Negative
Mouse macrophage RAW264.7		Negative
Kim et al. [23]
Primary Tissue
Rat osteoblastic cells	Western blot	Positive
Mouse osteoblastic cells
Rat brain
Cell lines
Mouse osteoblastic MC3T3-E1		Positive
Mouse preadipocytic 3T3-L1	RT-PCR, Western blot
Rat ROS17/2.8 osteogenic sarcoma
Rat UMR-106 osteogenic sarcoma
Maccarinelli et al. [24]
Primary Tissue
Rat osteoblastic cells	RT-PCR, Western blot	Positive
Ueberberg et al. [25]
Primary Tissue
Human bone marrow	Quantitative PCR, IHC	Positive
Delhanty et al. [27]
Primary Tissue
Human bone marrow (n = 2)	Quantitative PCR	Positive
Fukushima et al. [28]
Primary Tissue
Rat osteoblastic cells	RT-PCR, IHC	Positive
Rat femur	IHC	Positive
Cell lines
Rat UMR-106 osteogenic sarcoma	RT-PCR	Positive
Guan et al. [35]
Primary Tissue
Rat bone marrow	RPA	Negative

RT-PCR: reverse transcription PCR. IHC: immunohistochemistry. RPA, ribonuclease protection assay.