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. 2022 Aug 23;14(17):3442. doi: 10.3390/polym14173442

Table 1.

Summary of the molecular weights of endogenous HA.

Tissue Concentration (µg/mL) Molecular Weight (kDa) References
Umbilical cord 4100 500 [20]
Synovial fluid 1400–3600 6000–7000 [21,22]
Dermis 200–500 >1000 [23,24]
Epidermis 100 >1000 [23,24]
Thoracic lymph 0.2–50 1400 [3,25,26]
Urine (excreted) 0.1–0.3 4–12 [27]