Electroacupuncture may turn white fat brown in obese rats

By AI, Created 5:23 PM UTC, May 18, 2026, /AGP/ – A May 2025 study from Chongqing Medical University found electroacupuncture reduced weight and improved lipid levels in diet-induced obese rats while boosting thermogenic activity in fat tissue. The results point to the PKA/CREB pathway as a possible mechanism and suggest a non-drug approach to obesity research.

Why it matters: - Obesity is driven in part by white fat that stores excess energy. - Browning white fat could help the body burn more energy instead of storing it. - The study adds a mechanistic explanation for how electroacupuncture may affect metabolism, not just body weight. - The findings could support future obesity strategies that target adipose tissue plasticity.

What happened: - A research team from Chongqing Medical University reported in May 2025 that electroacupuncture improved lipid metabolism and induced browning of white adipose tissue in obese rats. - The study appeared in Acupuncture Research and is identified by DOI: 10.13702/j.1000-0607.20240755. - Researchers used a high-fat diet–induced obesity model in male rats. - Electroacupuncture was applied for six weeks at Zhongwan (CV12), Guanyuan (CV4), and bilateral Tianshu (ST25) and Fenglong (ST40).

The details: - Electroacupuncture reduced body weight, abdominal circumference, and Lee’s index compared with untreated obese animals. - The treatment lowered triglycerides, total cholesterol, and LDL cholesterol. - Electroacupuncture increased HDL cholesterol. - Histology showed reversal of adipocyte hypertrophy and more normal fat morphology in white and brown adipose tissue. - The intervention increased expression of thermogenic genes, including UCP1, PGC-1α, PRDM16, PPARγ, Cox7a1, Cox8b, DIO2, Cidea, ELOVL3, Tbx1, Tmem26, and CD137. - UCP1 and PGC-1α protein levels also increased in adipose tissue. - Obesity suppressed PKA activity and CREB phosphorylation. - Electroacupuncture restored PKA/CREB signaling. - The treatment also suppressed SREBP-1, a lipid synthesis regulator. - The paper says the work was supported by the National Natural Science Foundation of China and Chongqing municipal funding programs.

Between the lines: - The key signal here is biological remodeling, not just short-term weight loss. - The study suggests electroacupuncture may push fat tissue toward an energy-burning state through a defined signaling pathway. - That gives researchers a more testable model for studying non-pharmacological obesity therapies. - The work is still preclinical, so the results do not yet prove the same effect in people.

What’s next: - Clinical validation is still needed before the findings can inform treatment in humans. - Future studies could test whether the PKA/CREB pathway can help optimize electroacupuncture protocols. - Researchers may also explore combination approaches with lifestyle or drug therapies. - The findings may help expand research into neuromodulatory therapies for metabolic disease.

The bottom line: - In obese rats, electroacupuncture appeared to reprogram white fat toward a brown-like, energy-consuming state and improve metabolic markers.