Gold Bead Implantation in Acupoints for Coxofemoral Arthrosis in Dogs: Method Description and Adverse Effects

nanoGold and µGold inhibit autoimmune inflammation: a review

The newest data on metallic gold have placed the noble metal central in the fight for the safe treatment of autoimmune inflammation. There are two different ways to use gold for the treatment of inflammation: gold microparticles > 20 µm and gold nanoparticles. The injection of gold microparticles (µGold) is a purely local therapy. µGold particles stay put where injected, and gold ions released from them are relatively few and taken up by cells within a sphere of only a few millimeters in diameter from their origin particles. The macrophage-induced release of gold ions may continue for years. Injection of gold nanoparticles (nanoGold), on the other hand, is spread throughout the whole body, and the bio-released gold ions, therefore, affect multitudes of cells all over the body, as when using gold-containing drugs such as Myocrisin. Since macrophages and other phagocytotic cells take up and transport nanoGold and remove it after a short period, repeated treatment is necessary. This review describes the details of the cellular mechanisms that lead to the bio-release of gold ions in µGold and nanoGold.

Gold micro-particles for knee osteoarthritis

Background

This exploratory study investigates if intra‐articular injected gold microparticles in knee osteoarthritis (KOA) reduce immunomodulatory‐based pain via proteomic changes in the synovial fluid (SF) and serum.

Methods

Thirty patients with moderate KOA were included. Intraarticular injections with 20 mg gold microparticles (72.000 particles, 20–40 µm in diameter) using the patient's synovial fluid (SF) as carrier were performed. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) subscores for pain, stiffness, and function were assessed at inclusion, 8 weeks and 2 years The PainDetect questionnaire, pain pressure threshold (PPT), temporal summation (TS), and conditioned pain modulation (CPM), and pain diary were assessed at inclusion and 8 weeks. Proteome analysis was performed on SF and blood samples before and after 8 weeks of treatment.

Results

A decrease in WOMAC scores (pain (p = 0.0001), stiffness (p = 0.0088), activity (p = 0.0001)), PainDetect (p = 0.0002) and increase in PPT (p = 0.001) and CPM (p = 0.021) and a decrease in TS (p = 0.03) were found after 8 weeks compared to inclusion assessments. At 2 years follow‐up compared to baseline there was a decrease in WOMAC scores (pain (p = 0.0001), stiffness (p = 0.007), activity (p = 0.0001)) and PainDetect (p = 0.0001). In SF, 28 different proteins were downregulated and 11 upregulated (p < 0.05) mainly associated immune response. Similarly, 31 proteins were downregulated and 1 upregulated in serum (p < 0.05) reflecting key immune response and anatomical structure development processes. No adverse effects related to the treatment were recorded.

Conclusions

Gold microparticles injected intra‐articular in KOA joints may provide pain relief and an inflammatory modulatory effect based on proteome changes found in SF and serum. A randomized, controlled, double‐blind study is needed to infer a conclusion.

Significance

This study indicates that intra‐articular gold may provide advantages in clinical practice for managing knee osteoarthritic pain. The use of intraarticular gold can add new knowledge to the treatment of inflammation and pain.

AVALIAÇÃO DO EFEITO DA ACUPUNTURA E TÉCNICAS AFINS E PERFIL CLÍNICO E EPIDEMIOLÓGICO DE CÃES COM DOENÇAS NEUROLÓGICAS E OSTEOMUSCULARES ATENDIDOS EM SERVIÇO DE REABILITAÇÃO VETERINÁRIA

Resumo Este estudo retrospectivo avaliou 181 cães com doenças neurológicas e osteomusculares atendidos em um serviço de reabilitação e dor crônica, durante o período de 2013 a 2015. Objetivou-se caracterizar o perfil epidemiológico e clínico dos animais e analisar a eficácia da acupuntura (AP) e terapias afins e respectiva evolução clínica. O diagnóstico baseou-se no exame físico, neurológico, ortopédico e de imagem. As afecções mais prevalentes foram as do sistema nervoso central, sobretudo doença do disco toracolombar e traumas vertebromedulares agudos. Nas enfermidades neurológicas, o tratamento foi considerado eficaz quando os pacientes foram capazes de recuperar a deambulação e para as lesões medulares, quando houve melhora clínica do quadro neurológico avaliado por meio de escores. O sucesso obtido nos quatro segmentos medulares foi de 69,5%. Nas enfermidades osteomusculares, 47% dos cães apresentavam lesões no joelho e 44% displasia coxofemoral (DCF). Adotou-se a escala analógica visual (EAV) de locomoção para definir o sucesso do tratamento nestas doenças, que foi de 52,8%. As técnicas que mais se associaram à AP manual foram, por ordem decrescente, a eletroacupuntura, a ozonioterapia e o LASER. O número de sessões de AP foi em média de 7,6±3,5. Conclui-se que a AP e técnicas afins melhoraram o escore de déficit neurológico nas doenças neurológicas avaliadas quando usadas de forma isolada e quando associadas à medicina convencional.