1. Development of novel treatments targeting "body osmole and water".
2. Elucidation of the regulatory mechanism of the renin-angiotensin-aldosterone system and its involvement in the pathogenesis, and development of novel treatments targeting ATP6ap2.
3. Role of the sympathetic nervous system in physiology and pathophysiology.
4. Development of novel medicines, healthy foods, and technology.
5. Research to maintain the health of dolphins.

• Kitada K, Nishiyama A. Water and Sodium Metabolism in Kidney-Skin Cross Talk. Physiology (Bethesda). 2026;41:0.
• Taguchi S et al. Keratinocyte-specific angiotensin II receptor-associated protein deficiency exacerbates angiotensin II-dependent hypertension via activation of the skin renin-angiotensin system. Nat Commun. 2025;16:4789.
• Nishiyama A, Kitada K, et al. Blood pressure adaptation in vertebrates: comparative biology. Kidney Int. 2022;102:242-247.

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