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<p>Erectile dysfunction (ED) in diabetes often resists phosphodiesterase type 5 inhibitors due to neuropathy and vasculopathy, both worsened by neuroinflammation. This study evaluated light-emitting diode (LED) therapy’s effects on diabetes-induced neurovascular damage using a diabetic mouse model. Diabetes was induced in C57BL/6 mice with streptozotocin, followed by treatment with RED (660&#xa0;nm) and near-infrared (NIR; 830&#xa0;nm) LED light, separately and combined, for ten days over two weeks. Functional and molecular analyses assessed neurovascular regeneration. LED therapy significantly improved intra-cavernous pressure (ICP), with combined RED and NIR wavelengths restoring ICP to 90% of normal levels, indicating enhanced nerve and vascular function. Histological analyses showed increased endothelial cell density, angiogenesis, pericyte recruitment, and neural regeneration. Molecular findings revealed upregulation of neurotrophic factors (NGF, NT-3, BDNF), angiogenic markers (VEGF, eNOS), and phosphorylated PI3K, alongside reduced apoptosis and increased cell proliferation. These results demonstrate that LED therapy mitigates diabetes-induced neuropathy and vasculopathy by enhancing neurovascular repair and modulating neuroinflammatory pathways. The study highlights the potential of combined RED and NIR LED therapy as a non-invasive treatment for diabetic ED and related neurovascular complications, offering a promising approach to improving patient outcomes.</p>

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Photobiomodulation therapy for diabetic erectile dysfunction targeting neuroinflammation and neurovascular regeneration

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月1日

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  • Limanjaya Anita,
  • Min-Ji Choi,
  • Guo Nan Yin,
  • JiYeon Ock,
  • Mi-Hye Kwon,
  • Soon-Sun Hong,
  • Ju-Hee Kang,
  • Jun-Kyu Suh,
  • Ji-Kan Ryu

摘要

Erectile dysfunction (ED) in diabetes often resists phosphodiesterase type 5 inhibitors due to neuropathy and vasculopathy, both worsened by neuroinflammation. This study evaluated light-emitting diode (LED) therapy’s effects on diabetes-induced neurovascular damage using a diabetic mouse model. Diabetes was induced in C57BL/6 mice with streptozotocin, followed by treatment with RED (660 nm) and near-infrared (NIR; 830 nm) LED light, separately and combined, for ten days over two weeks. Functional and molecular analyses assessed neurovascular regeneration. LED therapy significantly improved intra-cavernous pressure (ICP), with combined RED and NIR wavelengths restoring ICP to 90% of normal levels, indicating enhanced nerve and vascular function. Histological analyses showed increased endothelial cell density, angiogenesis, pericyte recruitment, and neural regeneration. Molecular findings revealed upregulation of neurotrophic factors (NGF, NT-3, BDNF), angiogenic markers (VEGF, eNOS), and phosphorylated PI3K, alongside reduced apoptosis and increased cell proliferation. These results demonstrate that LED therapy mitigates diabetes-induced neuropathy and vasculopathy by enhancing neurovascular repair and modulating neuroinflammatory pathways. The study highlights the potential of combined RED and NIR LED therapy as a non-invasive treatment for diabetic ED and related neurovascular complications, offering a promising approach to improving patient outcomes.