β-type titanium alloys with low Young's modulus are required to inhibit bone atrophy and enhance bone remodeling for implants used to substitute failed hard tissue. At the same time, these titanium alloys are required to have high static and dynamic strength. On the other hand, metallic biomaterials with variable Young's modulus are required to satisfy the… (More)
The expression of the c-erbB-2 mRNA in human embryonic lung fibroblasts, a gastric cancer cell line, mature placenta, and 25 gastric cancer tissues was examined by using the polymerase chain reaction following reverse transcription. This technique can be used to examine c-erbB-2 mRNA expression in a small endoscopic biopsy specimen before surgery.