Seek for the bioactive substance in human milk

2014 Fiscal Year Final Research Report

• Project/Area Number: 23791164
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Pediatrics
• Research Institution: Hamamatsu University School of Medicine
• Principal Investigator: FUJISAWA Yasuko 浜松医科大学, 医学部附属病院, 助教 (40402284)
• Research Collaborator: 岩原 邦宏 浜松医科大学医学部, 検査部 ; 中川 祐一 浜松医科大学医学部, 小児科 ; MATSUMURA Davis Fumio University of California
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 栄養 / 脂肪細胞 / 母乳 / 小児肥満 / DOHad

Outline of Final Research Achievements

The direct effect of human milk on differentiation of 3T3-L1 preadipocytes was investigated. The induction of preadipocyte differentiation by human milk lipids was tested in comparison to the cells induced by infant formula lipids. It was clearly shown that lipids in human milk initiate preadipocyte differentiation. The expression of late adipocyte markers in day 7 adipocytes (initiated into differentiation by human milk lipid at day 0) was comparable with those in control cells initiated by standard method. Furthermore, I tried to see the molecular components in lipid droplets in cells induced by human milk lipid by imaging mass spectrometry. The methods for sample preparation has been established, however, to obtain some reliable results, more efforts for condition setting should be necessary.
The results suggest that matured adipocytes loosing the ability of proliferation compared to preadipocytes, induced by human milk lipid during early life pirioid,

Free Research Field

小児　小児内分泌