Targeted metabolomics of organic and amino acids in giraffe milk during mid- to late-lactation
G Osthoff, S Mason, E Davoren, F Deacon · 2026
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Description
Osthoff and co-authors chart in 2026 what happens inside giraffe milk as lactation winds down. When a mammal's milk production ends, the milk's makeup shifts in a phase called involution. That phase is well mapped in cows, sheep, and goats, but giraffes had barely been studied.
Milk from five giraffes was run through targeted mass spectrometry, counting dozens of organic acids and amino acids. The acid pattern pointed to a slowing Krebs cycle, the cell's main energy loop. Falling citrate matched falling lactose, the milk sugar that governs water draw. Building blocks for nucleotides also ebbed, signaling less new molecule making. Amino acids rose, but not for protein building: their profile fit defense roles instead, buffering oxidation and guarding cells. The portrait is a gland powering down while armoring itself, in an animal few labs can sample at all.
Catalog record
| CREATOR | G Osthoff, S Mason, E Davoren, F Deacon |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 46 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |