Objective: To investigate the possible influence of the impairment of lymph fluid on the metabolism of hyaluronic acid (HA) in the lymphedematous skin tissue.
Methods: Tissue fluid was collected in lymphedematous limbs and the contralateral healthy limbs of 39 patients and HA content was measured with radioimmunoassay. The protein contents were also measured.
Results: The HA contents in interstitial fluid of lymphedematous limb were significantly (8 fold) higher than that of normal limb. The protein concentration in the tissue fluid did not show significant differences between lymphedema and those with normal tissue.
Conclusion: The result suggests blockage of regional draining lymphatics may impairs breakdown of HA and the stagnation of HA in the limb may exert a deleterious effect on the interstitium.
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ACS Biomater Sci Eng
December 2024
Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia.
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School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; National Innovation Platform for medical industry-education integration, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China. Electronic address:
Photodynamic therapy (PDT) holds an essential role in the therapy of tumors. However, PDT consumes tissue oxygen and diminishes its own efficacy by inducing tumor hypoxia through the HIF-1α/VEGF pathway. Therefore, overcoming the photodynamic exacerbation of tumor hypoxia could reverse tumor microenvironment and enhance PDT.
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