Photobiomodulation therapy with light-emitting diode in stimulating adipose tissue mitochondria.

Low-level laser therapy (LLLT) is known for its ability to induce a photochemical process, primarily targeting mitochondria, a process referred to as photobiomodulation (PBM). Recently, its use has been attributed as an adjunct in obesity treatment, to stimulate lipolysis and apoptosis. However, the pathway of stimulation remains uncertain. Thus, the objective of this study was to understand whether mitochondrial stimulation occurs in adipose tissue cells after PBM therapy, which could lead to the processes of lipolysis and apoptosis. A non-randomized clinical trial was conducted using a split abdomen design in obese women who received red and infrared LED photobiomodulation therapy (PBMT). The patients underwent bariatric surgery, and adipose tissue samples were collected for immunohistochemical analysis with primary mitochondrial antibodies. Adipose tissue samples subjected to LED intervention exhibited positivity in mitochondrial antibodies for cAMP, DRP1, FAS, FIS1, MFN2, and OPA1 (p<0.001) compared to the control group. In conclusion, we observed that PBMT was capable of generating mitochondrial stimulation in adipose tissue cells, as evidenced by the positive antibody signals. This finding suggests that mitochondrial stimulation could be the mechanism and action underlying adipose tissue lipolysis and apoptosis.

Effects of LED photobiomodulation therapy on the subcutaneous fatty tissue of obese individuals - histological and immunohistochemical analysis.

Photobiomodulation therapy (PBMT) has become an adjuvant therapeutic possibility in body remodeling procedures. Given this scenario, this study was proposed with the aim of evaluating the effects of PBMT to Light Emitting Diode (LED) associating the red (630 nm) and infrared (850 nm) wavelengths in the subcutaneous fatty tissue. This controlled study of comparative intervention that evaluated a sample of subcutaneous fatty tissue from women with grade II obesity. The participants received the LED PBMT treatment with associated red and infrared wavelengths sequentially on the left side of the abdomen and the right side was considered as control, with the collection of biological material performed at the time of bariatric surgery. For histological and immunohistochemical evaluation, Caspase 3, Cleaved Caspase 3, CD68+, HSL and adipophilin markers were used. The participants showed positivity in the expression of Caspase 3 and Cleaved Caspase (p < .0001), CD68+ macrophages (p < .0001), HSL (p < .0001) and adipophilin (p < .0013) in the intervention sample when compared to the control. PBMT and LED associating red and infrared wavelengths were able to promote autophagic lipolysis induced by adipocyte cell apoptosis in the subcutaneous tissue of obese individuals.

Efficacy and safety of ND:YAG 1064 nm lasers for photoepilation: a systematic review.

Using light sources in phototherapy has presented promising results regarding several types of facial and body skin affections for centuries. The neodymium-doped yttrium aluminum garnet (ND:YAG) 1064 nm laser has become a standard treatment in dermatology for dermatological disturbances related to the pilous follicle and the structures surrounding it. Despite the reports of its clinical benefits, few scientific studies show its actual safety and efficacy. To substantiate the effects, benefits, and safety of applying an ND:YAG 1064 laser in the epilation process during esthetic treatment, a systematic review was carried out between October 2018 and January 2019, on studies published in the last 20 years. Randomized clinical trials in humans were considered that evaluated the efficacy, safety, and benefits of ND:YAG laser application at 1064 nm wavelengths for hair removal. A total of 198 articles were identified; 58 articles remained after their titles and abstracts were read; and 21 articles were selected after the removal of duplicates. After the integral reading, 13 of these articles were included in the systematic review (734 patients). The ND:YAG 1064 nm laser presents safety and promising, beneficial effects in epilation. However, further scientific studies with better methodologic quality are necessary to better standardize ND:YAG laser therapy and clarify its parameters for photoepilation.

Eficácia da massagem mecânica motorizada associada a cosmecêuticos no remodelamento corporal e aspecto da celulite / Efficacy of motorized mechanical massage associated with derma-cosmeceuticals in body remodeling and aspect of cellulite

Gordura localizada e celulite são as afecções estéticas que mais incomodam as mulheres nos dias atuais e as levam a busca de tratamentos estéticos. Por essa razão, o objetivo do presente estudo foi avaliar a associação da massagem mecânica motorizada com cosmecêuticos no tratamento da gordura localizada e celulite. Métodos: Trata-se de um estudo clínico longitudinal prospectivo e comparativo. Trinta e duas mulheres foram incluídas no presente estudo seguindo os critérios de elegibilidade e inelegibilidade, todos foram avaliados e reavaliados após dez sessões do protocolo de tratamento. Para análise dos dados foram utilizados testes Lilliefor's, teste t-student bicaudal pareado, teste t-student bicaudal para amostras heterocedásticas. Resultados: Trinta mulheres finalizaram o protocolo de tratamento. Obteve-se redução das medidas, de abdome superior (p < 0,032) e abdome inferior (p < 0,004) na adipometria; medidas de cintura (p < 0,008) e abdome inferior (p < 0,022) avaliadas pela perimetria; na análise do ultrassom houve redução da medida de abdome superior (p < 0,004), flancos (p < 0,021), posterior de coxa região de prega glútea (p < 0,006) e posterior de coxa região inferior (p < 0,0001). Conclusão: Diante dos resultados, conclui-se que o protocolo de tratamento com a associação da massagem mecânica motorizada e cosmecêuticos foram eficazes para a melhora do contorno corporal e a aparência da celulite. (AU)

Localized fat and cellulite are the aesthetic conditions which disturb women the most, in current times, and therefore lead them to search esthetic treatments. For this reason, the objective of this study was to evaluate the association of motorized mechanical massage with derma cosmeceuticals in the treatment of localized fat and cellulitis. Methods: This is a clinical prospective longitudinal study. Thirty-two women were included in the present study, following the criteria of eligibility and ineligibility, and they were all evaluated and re-evaluated after ten sessions of the treatment protocol. For data analysis, we used Lilliefors t-student tests, paired two-tailed test, for heteroscedastic samples. Results: Thirty women finalized the treatment protocol, and reduction of measures was obtained in the upper abdomen (p < 0.032) and lower abdomen (p < 0.004) in adipometry; waist measures (p < 0.008) and lower abdomen, (p < 0.022) evaluated by perimetry: in the ultrasound analysis, there was reduction of the upper abdomen measure (p < 0.004), flanks (p < 0.021), upper posterior thigh area (p < 0.006) and posterior thigh distal area (p < 0.0001). Conclusion: We concluded that the treatment protocol with the association of motorized mechanical massage was efficient in the improvement of the body contour and the aspect of cellulitis. (AU)