1.Hepatotoxic mechanism of diclofenac sodium on broiler chicken revealed by iTRAQ-based proteomics analysis
Chuanxi SUN ; Tianyi ZHU ; Yuwei ZHU ; Bing LI ; Jiaming ZHANG ; Yixin LIU ; Changning JUAN ; Shifa YANG ; Zengcheng ZHAO ; Renzhong WAN ; Shuqian LIN ; Bin YIN
Journal of Veterinary Science 2022;23(4):e56-
Background:
At the therapeutic doses, diclofenac sodium (DFS) has few toxic side effects on mammals. On the other hand, DFS exhibits potent toxicity against birds and the mechanisms remain ambiguous.
Objectives:
This paper was designed to probe the toxicity of DFS exposure on the hepatic proteome of broiler chickens.
Methods:
Twenty 30-day-old broiler chickens were randomized evenly into two groups (n = 10).DFS was administered orally at 10 mg/kg body weight in group A, while the chickens in group B were perfused with saline as a control. Histopathological observations, serum biochemical examinations, and quantitative real-time polymerase chain reaction were performed to assess the liver injury induced by DFS. Proteomics analysis of the liver samples was conducted using isobaric tags for relative and absolute quantification (iTRAQ) technology.
Results:
Ultimately, 201 differentially expressed proteins (DEPs) were obtained, of which 47 were up regulated, and 154 were down regulated. The Gene Ontology classification and Kyoto Encyclopedia of Genes and Genomes pathway analysis were conducted to screen target DEPs associated with DFS hepatotoxicity. The regulatory relationships between DEPs and signaling pathways were embodied via a protein-protein interaction network. The results showed that the DEPs enriched in multiple pathways, which might be related to the hepatotoxicity of DFS, were “protein processing in endoplasmic reticulum,” “retinol metabolism,” and “glycine, serine, and threonine metabolism.”
Conclusions
The hepatotoxicity of DFS on broiler chickens might be achieved by inducing the apoptosis of hepatocytes and affecting the metabolism of retinol and purine. The present study could provide molecular insights into the hepatotoxicity of DFS on broiler chickens.
2.Da Chengqitang in Treatment of Sepsis: A Review
Junsheng SHA ; Nan ZHANG ; Weiyi SUN ; Xiang LI ; Shifa YANG ; Qiang ZHI ; Shu CHEN ; Nan GAO ; Liyan FAN
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(17):274-282
Sepsis is a systemic inflammatory syndrome induced by infection and other factors, with the number of patients worldwide exceeding 10 million each year. The pathophysiological mechanism is of this disease complex. Sepsis is often accompanied by endotoxin translocation, gastrointestinal dysfunction, inflammatory cytokine activation, immune dysregulation, coagulation disorder, multiple organ function impairment and many other body imbalances, as well as systemic inflammation, apoptosis, oxidative stress injury and other cell damage mechanisms. This disease causes a heavy medical burden due to the difficult diagnosis and treatment and the poor prognosis. Great progress has been achieved in the diagnosis and treatment of sepsis with traditional Chinese medicine (TCM) and western medicine. The value of western medicine in the diagnosis and treatment of sepsis is limited due to antibiotic resistance, hormone abuse, and high medical costs. Sepsis is classified as a warm disease or typhoid fever in TCM. Da Chengqitang is a classical formula in the Treatise on Typhoid Fever to deal with the excess syndrome of Yang brightness Fu-organ. Modern medicine has proved that Da Chengqitang has the effect of inhibiting oxidative stress, reducing inflammation, and delaying apoptosis by improving gastrointestinal dynamics and regulating intestinal microecology. On the basis of the previous theoretical basis and the rich experience in the medication, medical practitioners have proposed a new therapeutic concept of using Da Chengqitang in combination with western drugs from a holistic view involving both bacteria and toxicity for treating both the symptoms and the root cause, which has a wide range of application. The article reviews the classical research and latest findings of Da Chengqitang in the treatment of sepsis, with a view to clarifying the mechanism and advantages of this formula in the adjuvant treatment of sepsis, exploring its potential efficacy, and providing timely, adequate, and scientific theoretical support for the promotion of this formula in the clinical practice.