Effect of a nonthermal‐atmospheric pressure plasma jet on wound healing: An animal study

Background The use of a nonthermal plasma (NTP) jet in the treatment of living tissue has been the subject of considerable interest in the field of medical technology, and has the potential to reduce the recovery time of open wounds. We aimed to investigate the wound‐healing process by clinical observation, blood tests, and expression of cell adhesion markers and reactive oxygen species in NTP jet‐treated rats. Methods This study utilized Sprague‐Dawley (SD) rats as experimental subjects, and wounds measuring 2 cm × 2 cm were produced on the animals’ backs. The experimental group was treated with NTP for 5 min/d for 4 weeks. The NTP was injected in a diffused manner into the cage housing the rats. The SD rats that had not received plasma treatment were designated as the control group. Blood was drawn on Postoperative Day 2, Day 4, and at 3 months. An immunohistochemical stain of E‐cadherin and 4‐hydroxy‐2‐nonenal (4‐HNE), a reactive oxygen species marker, were evaluated and quantified for analysis using a CMYK color model. Results A total of 35 SD rats were included in the study (25 in the NTP group and 10 in the control group). Low dose plasma treatment shortened the wound‐healing time without damaging organs. In the NTP group, the white blood cell counts at Day 2 post‐NTP treatment was not increased significantly more than that in the control group. After quantification of immunohistochemical staining, 4‐HNE was increased at Day 14 compared with Day 7 (16.16 ± 12.81% vs. 55.11 ± 8.11%, p < 0.001), and E‐cadherin was also increased (52.17 ± 14.96% vs. 70.46 ± 12.78%, p = 0.04) in the NTP group. After comparison of NTP and the control, it was observed that 4‐HNE and E‐cadherin were increased in the NTP group on Day 14. Conclusion Short‐term, low‐dose NTP wound treatment was demonstrated to accelerate wound healing in SD rats without vital organ toxicity.

• Publication year

  2016

• Venue

  Journal of the Chinese Medical Association

• Publication date

  2016-06-01

• Fields of study

  Medicine, Engineering

• Identifiers
  DOI 10.1016/j.jcma.2015.06.024PMID 27036493
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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