This treatment could potentially increase chondrogenic differentiation.  However, it involves free radicals and too many free radicals can be harmful to height growth.  Too much ROS accumulation can lead to MSC senescence.

Skeletal cell differentiation is enhanced by atmospheric dielectric barrier discharge plasma treatment.

“This study investigated the potential of non-thermal atmospheric dielectric barrier discharge plasma (NT-plasma) to enhance chondrocyte and osteoblast proliferation and differentiation. [The mechanism by which] NT-plasma interacts with cells [involves ionizing the atmosphere] generating extracellular reactive oxygen and nitrogen species (ROS and RNS) and an electric field. Appropriate NT-plasma conditions were determined to evaluate DNA damage and mitochondrial integrity.  Specific NT-plasma conditions were required to prevent cell death{How could we manipulate this in the growth plate?}, and that loss of pre-osteoblastic cell viability was dependent on intracellular ROS and RNS production. To further investigate the involvement of intracellular ROS, fluorescent intracellular dyes Mitosox (superoxide) and dihydrorhodamine (peroxide) were used to assess onset and duration after NT-plasma treatment. Both intracellular superoxide and peroxide were found to increase immediately post NT-plasma treatment. These increases were sustained for one hour but returned to control levels by 24 hr. Using the same treatment conditions, osteogenic differentiation by NT-plasma was assessed and compared to peroxide or osteogenic media containing β-glycerolphosphate. Although both NT-plasma and peroxide induced differentiation-specific gene expression, neither was as effective as the osteogenic media. However, treatment of cells with NT-plasma after 24 hr in osteogenic or chondrogenic media significantly enhanced differentiation as compared to differentiation media alone. NT-plasma can selectively initiate and amplify ROS signaling to enhance differentiation, and suggest this technology could be used to enhance bone fusion and improve healing after skeletal injury{healing after skeletal injury often involves endochondral ossification which is the mechanism by which you become taller}.”

“The NT-plasma discharge is generated by applying a high voltage, time-varying waveform between a dielectric covered electrode and the biological target. To prevent high temperature build-up and transition to arc, high voltage current is alternated between the two electrodes, one of which is covered with a dielectric. Within the NT-plasma discharge, the molecules present in air (O2, N2, H2O, CO2, etc) are ionized resulting in the direct formation of numerous reactive oxygen species (ROS) and reactive nitrogen species (RNS)”

” NT-plasma exposure promoted endothelial cell proliferation, which was abrogated by fibroblast growth factor (FGF)-2 neutralizing antibody. Proliferation and FGF-2 release were blocked by N-acetyl-cysteine (NAC), which prevented changes in intracellular redox. Mechanistically, these studies directly link NT-plasma effects to ROS or RNS generation.”<-FGF2 is involved in height growth.  However, elevated levels of FGFR3 which is an FGF2 receptor decrease height growth. Maybe a mechanism of inhibiting FGFR3, such as an over the counter pharmaceutical supplement, would be a solution to using NT-plasma.

“he Map5kinase Apoptosis signal-regulating kinase 1 (ASK1), is particularly sensitive to ROS as its activity is tightly regulated by four ROS sensitive proteins thioredoxin, glutaredoxin, Akt and 14-3-3. ROS activated ASK1 phosphorylates and activates both p38 and jnk kinases, which play key roles in cellular differentiation”<-LSJL activates Akt as well.

NT-Plasma increased ROS levels by 25-50% for about 1 hour.

“the N1511 chondrocyte cell line was subjected to the same NT-plasma treatment in the presence of BMP2 (200 ng/ml), a known inducer of chondrocyte differentiation. 24 hr after treatment, chondrocyte differentiation markers Runx2, ALKP were increased 3–6-fold above BMP-treated controls. By 56 hr, collagen type X (Col X) and another late marker, matrix metalloprotease 13 (MMP13) were both increased 20 and 4-fold, respectively above BMP-treated control.”<-Given the upregulation of Col X and MMP-13 NT-Plasma seems to encourage enchondral ossification.  Perhaps it could do so for the articular cartilage and we could grow taller that way?

“Within the stem cell pool, quiescence and pluripotency is maintained by the repression of ROS generation. As such, mouse and human embryonic stem cells have immature mitochondria, reduced expression of OXPHOS enzymes, low metabolic activity, low oxygen consumption, decreased levels of ATP production, express modest levels of antioxidant enzymes and have a high glycolytic flux”

“chondrocyte differentiation in response to NT-plasma may be directly linked to ROS induced expression of SOX-9 and Runx2”

“laser irradiation induced intracellular ROS production and enhanced SOX-9 expression leading to chondrocyte differentiation and expression of collagen and aggrecan“<-One laser irradiation study to impact longitudinal bone growth was discussed here.

NT-Plasma Treatment was not tested directly on Mesenchymal Stem Cells but still could be useful if other factors are in the right place.