1.Pathogenic bacteria distribution in patients with infectious eye diseases
Mingfeng FU ; Ying HU ; Lulu ZHAN ; Houqun YING
International Eye Science 2026;26(4):694-699
AIM:To analyze the characteristics of pathogenic bacteria in patients with infectious eye diseases at Shangrao Central Hospital from 2020 to 2024, providing a basis for the precise clinical prevention and control and the development of effective strategies.METHODS: A retrospective analysis was carried out on clinical specimens including the cornea, lacrimal duct, conjunctiva, and intraocular fluid samples, from patients with infectious eye diseases between May 2020 and December 2024. All the specimens underwent microbiological cultures and identification.RESULTS: A total of 447 patients enrolled ultimately in this study, including 250 males and 197 females, with an average age of 58.5±17.1 y. Among the 447 ocular specimens, bacterial infection was confirmed in 146 cases(32.7%). Of these positive samples, male patients accounted for 63.7%(93/146)and patients aged 51-70 y had the highest infection rate(88/146, 60.3%). Furthermore, migrant workers represented the predominant demographic affected by ocular infections, accounting for an overwhelming majority at 95.9%(140/146). When compared to other etiologies of disease, trauma emerged as the primary cause of ocular infections(P<0.01). In cases of bacterial ocular infections, Gram-positive cocci comprised approximately 61.2%, with Staphylococcus identified as the principal pathogen affecting the lacrimal duct, conjunctivae, and intraocular fluid. Streptococcus pneumoniae was found to be the main pathogen associated with corneal infections. Gram-negative bacteria were predominantly Pseudomonas aeruginosa. Fungal infections were observed in an alarming rate of 91.8% among corneal specimens. Fusarium was identified as the leading fungal pathogen responsible for these cases at a proportion of 45.9%.CONCLUSION: The distribution of pathogenic bacteria causing ocular infections demonstrates obvious tissue specificity. Trauma is identified as a major inducement of corneal fungal infection. Clinically, it is essential to pay particular attention to patients with ocular trauma, especially those engaged in agricultural labor who present with ocular infections, and fungal tests should be conducted as early as possible.
2.Ionizing Radiation-induced Lens Injury: Epidemiology, Dose-effect Relationship, and Molecular Mechanisms
Cheng-Hao HU ; Shao-Han REN ; Hai-Tao ZHANG ; Jing-Ming ZHAN
Progress in Biochemistry and Biophysics 2026;53(3):688-696
The crystalline lens of the eye is recognized as one of the most radiosensitive tissues in the human body. While the International Commission on Radiological Protection (ICRP) has classified ionizing radiation (IR)-induced cataracts as a tissue reaction (deterministic effect) and subsequently reduced the occupational equivalent dose limit for the lens, significant uncertainties remain regarding the precise dose threshold and the complex biological pathways driving lens opacification. This review provides a comprehensive synthesis of current knowledge concerning radiation-induced lens damage, integrating epidemiological exposure characteristics with dose-response modeling and mechanistic molecular insights. First, we analyze exposure characteristics through four epidemiological dimensions: dose, time, space, and population. Clinical evidence suggests that radiation cataracts—particularly posterior subcapsular opacities—exhibit a distinct latency period that is inversely correlated with dose. We highlight that risk is not confined to acute high-dose scenarios (such as in atomic bomb survivors) but is increasingly relevant in chronic low-dose occupational settings (e.g., interventional radiology) and medical diagnostics (e.g., CT scans). Crucially, individual susceptibility is modified by genetic background, age, and environmental co-factors, complicating risk assessment. Second, we critically examine the dose-effect relationship. Although the ICRP suggests a threshold of 0.5 Gy, emerging data challenge the traditional threshold model, with some studies advocating for a linear non-threshold (LNT) relationship. We further discuss the critical roles of radiation quality and dose rate. High linear energy transfer (LET) radiation demonstrates a significantly higher relative biological effectiveness (RBE) for cataractogenesis compared to low-LET radiation. Paradoxically, and unlike many other tissues, the lens may exhibit an “inverse dose-rate effect,” where fractionated or protracted exposures potentially enhance biological damage—a finding that challenges classical radiobiological paradigms. Third, drawing upon the “cataractogenic load” hypothesis and the unique physiological constraints of the lens, this review elucidates the multidimensional molecular mechanisms driving radiation-induced opacification. Key mechanisms include four aspects. (1) DNA damage and repair: IR induces DNA double-strand breaks (DSBs) that, due to the lens’ limited repair capacity (modulated by genes such as ATM, Ptch1, and Ercc2), lead to the accumulation of damage. (2) Antioxidant defense system: dysfunction of the Nrf2/HO-1 antioxidant axis results in redox imbalances, triggering NF-κB-mediated inflammation and protein aggregation. (3) Cell proliferation and senescence: IR disrupts cell cycle regulation, causing a dichotomy of effects—driving premature senescence in some cell populations (evidenced by ATM nuclear foci) while inducing aberrant proliferation via growth factor upregulation (FGF2, TGFβ) in others. (4) Cell migration and adhesion: activation of the Wnt/β‑catenin pathway and alterations in the E-cadherin complex promote the abnormal migration of epithelial cells to the posterior capsule, a hallmark of radiation-induced cataracts. In conclusion, radiation-induced cataractogenesis is a multifactorial process in which genetic susceptibility and environmental stressors converge to overwhelm the lens’ homeostatic thresholds. Future research must prioritize longitudinal cohort studies to refine dose thresholds and employ multi-omics approaches to map the crosstalk between DNA damage responses and matrix remodeling. Establishing a robust mechanistic model is essential for developing targeted radioprotective strategies and optimizing radiation protection standards for occupational and medical safety.
3.Comparison of Wild and Cultivated Gardeniae Fructus Based on Traditional Quality Evaluation
Yuanjun SHANG ; Bo GENG ; Xin CHEN ; Qi WANG ; Guohua ZHENG ; Chun LI ; Zhilai ZHAN ; Junjie HU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):225-234
ObjectiveBased on traditional quality evaluation of Gardeniae Fructus(GF) recorded in historical materia medica, this study systematically compared the quality differences between wild and cultivated GF from morphological characteristics, microscopic features, and contents of primary and secondary metabolites. MethodsVernier calipers and analytical balances were used to measure the length, diameter and individual fruit weight of wild and cultivated GF, and the aspect ratio was calculated. A colorimeter was used to determine the chromaticity value of wild and cultivated GF, and the paraffin sections of them were prepared by safranin-fast green staining and examined under an optical microscope to observe their microstructure. Subsequently, the contents of water-soluble and alcohol-soluble extracts of wild and cultivated GF were detected by hot immersion method under the general rule 2201 in volume Ⅳ of the 2020 edition of the Pharmacopoeia of the People's Republic of China, the starch content was measured by anthrone colorimetric method, the content of total polysaccharides was determined by phenol-sulfuric acid colorimetric method, the sucrose content was determined by high performance liquid chromatography coupled with evaporative light scattering detection(HPLC-ELSD), and the contents of representative components in them were measured by ultra-performance liquid chromatography(UPLC). Finally, correlation analysis was conducted between quality traits and phenotypic traits, combined with multivariate statistical analysis methods such as principal component analysis(PCA) and orthogonal partial least squares-discriminant analysis(OPLS-DA), key differential components between wild and cultivated GF were screened. ResultsIn terms of traits, the wild GF fruits were smaller, exhibiting reddish yellow or brownish red hues with significant variation between batches. While the cultivated GF fruits are larger, displaying deeper orange-red or brownish red. The diameter and individual fruit weight of cultivated GF were significantly greater than those of wild GF, while the blue-yellow value(b*) of wild GF was significantly higher than that of cultivated GF. In the microstructure, the mesocarp of wild GF contained numerous scattered calcium oxalate cluster crystals, while the endocarp contained stone cell class round, polygonal or tangential prolongation, undeveloped seeds were visible within the fruit. In contrast, the mesocarp of cultivated GF contained few calcium oxalate cluster crystals, or some batches exhibited extremely numerous cluster crystals. The stone cells in the endocarp were predominantly round-like, with the innermost layer arranged in a grid pattern. Seeds were basically mature, and only a few immature seeds existed in some batches. Regarding primary metabolite content, wild GF exhibited significantly higher total polysaccharide level than cultivated GF(P<0.01). In category-specific component content, wild GF exhibited significantly higher levels of total flavonoids and total polyphenols compared to cultivated GF(P<0.01). Analysis of 12 secondary metabolites revealed that wild GF exhibited significantly higher levels of Shanzhiside, deacetyl asperulosidic acid methyl ester, gardenoside and chlorogenic acid compared to cultivated GF(P<0.01). Conversely, the contents of genipin 1-gentiobioside, geniposide and genipin were significantly lower in wild GF(P<0.01). ConclusionThere are significant differences between wild and cultivated GF in terms of traits, microstructure, and contents of primary and secondary metabolites. At present, the quality evaluation system of cultivated GF remains incomplete, and this study provides a reference for guiding the production of high-quality GF medicinal materials.
4.Network meta-analysis of the efficacy of GLP-1 receptor agonists in the treatment of type 2 diabetes mellitus complicated with obesity/overweight
Jin ZENG ; Juliang CHEN ; Ziwei HU ; Liangran YAO ; Yakun ZHAN
China Pharmacy 2026;37(10):1357-1363
OBJECTIVE To systematically evaluate the efficacy and safety of 6 kinds of GLP-1RAs in the treatment of type 2 diabetes mellitus (T2DM) patients with overweight or obesity, and to provide evidence-based reference for clinical practice. METHODS A comprehensive search was conducted in PubMed, Embase, Web of Science, the Cochrane Library, CNKI, VIP, Wanfang Data, and CBM from the inception to December 1, 2025. Randomized controlled trials (RCTs) were screened according to inclusion and exclusion criteria. Data extraction and risk of bias assessment were performed on the included studies. Network meta-analysis was conducted using Stata 17.0 software. RESULTS A total of 29 eligible RCTs were included, involving 7 404 patients. Six GLP-1RAs were evaluated: semaglutide, liraglutide, exenatide, dulaglutide, polyethylene glycol loxenatide, and beinaglutide. In terms of glycemic control, semaglutide had the highest probability of ranking first in reducing glycated hemoglobin (HbA1c) and fasting plasma glucose levels, followed by polyethylene glycol loxenatide. In terms of weight management, semaglutide showed the highest probability of ranking first, followed by liraglutide and exenatide. Regarding safety, dulaglutide had the highest probability of ranking first in reducing the incidence of gastrointestinal adverse events; none of the GLP-1RAs significantly increased the risk of severe hypoglycemia. Subgroup analysis revealed that liraglutide 1.8 mg, qd and exenatide extend-release 2.0 mg, qw demonstrated superior efficacy in reducing HbA1c and body weight compared with other doses/dosage forms of the same agents. CONCLUSIONS For T2DM patients with overweight or obesity, semaglutide offers the greatest benefits in glycemic control and weight reduction, while dulaglutide demonstrates superior gastrointestinal tolerability. Liraglutide 1.8 mg, qd and exenatide extend-release 2.0 mg, qw show relatively better overall efficacy in glycemic control and weight reduction among the same agents.
5.Herbal Textual Research on Kochiae Fructus in Famous Classical Formulas
Huifang HU ; Liping YANG ; Fei CHEN ; Xiaohui MA ; Ling JIN ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(15):247-257
In this paper, by referring to ancient and modern literature, the textual research of Kochiae Fructus has been conducted to clarify the name, origin, distribution of production areas, quality specification, taste and efficacy, harvesting time, processing and compatibility taboo, so as to provide reference and basis for the development and utilization of related famous classical formulas. According to the investigation, it can be seen that Difuzi was first published in Sheng Nong's Herbal Classic, and has been used as the official name throughout history. It is also known by other names such as Dimai, Dikui, and Luozhou. The mainstream source of Difuzi in materia medica throughout history is the dried ripe fruit of Kochia scoparia, which is consistent throughout history. In the Han dynasty, it was recorded that Kochiae Fructus was produced in Jingzhou(Hubei province), while modern literature records its distribution throughout the country, so it does not have obvious geoherbalism. The harvesting period of Kochiae Fructus is mostly in the late autumn, and the quality is best when it is full, gray green in color, and no impurities. There are two processing methods for its origin:from the Southern and Northern dynasties to the Ming dynasty, it was dried in the shade, and after the founding of the People's Republic of China, it was dried in the sun. There are few records about the processing of Kochiae Fructus, and its clinical application is mostly based on raw products as medicine. The seedlings are harvested in February of the lunar calendar, and the leaves are taken in April and May, processing in the place of origin is shade drying, the processing methods include burning ash and frying frost, pounding juice and wine soaking. For internal use, it is mostly decocted or mashed, while for external use, it is mostly washed with decoction or taken in a soup bath. Throughout history, it has been recorded that Kochiae Fructus is bitter and cold, and is mainly used for treating bladder fever. After the founding of the People's Republic of China, most of the literature classified it as damp-clearing medicine. Since the 1985 edition of Chinese Pharmacopoeia, it has been recorded that Kochiae Fructus has a pungent and bitter taste, and a cold nature. Returning to the kidney and bladder meridians with functions of clearing heat and dampness, dispelling wind and relieving itching. The clinical contraindications are mainly prohibited for those with deficiency and no dampness and heat. Throughout history, it has been recorded that the taste of the seedlings and leaves is bitter and cold for treatment of dysentery. Since modern times, it has been used to regulate the liver, spleen and large intestine meridians, with functions such as clearing heat and detoxifying, and diuresis. Based on the textual research, it is recommended to use the dried ripe fruit of K. scoparia when developing the famous classical formulas containing Kochiae Fructus, and processing shall be carried out according to the original processing requirements. If the original formula does not specify the processing requirements, the raw products is taken into medicine.
6.Herbal Textual Research on Cnidii Fructus in Famous Classical Formulas
Huifang HU ; Liping YANG ; Fei CHEN ; Xiaohui MA ; Ling JIN ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(16):243-253
In this paper, by referring to ancient and modern literature, the textual research of Cnidii Fructus has been conducted to clarify the name, origin, distribution of production areas, quality specification, nature and flavour, efficacy, harvesting and processing, compatibility taboo and others, so as to provide reference and basis for the development and utilization of the relevant famous classical formulas. After textual research, it can be verified that Cnidii Fructus was first published in Sheng Nong's Herbal Classic, the materia medica of all dynasties was named Shechuangzi, and there are also aliases such as Shesu, Shemi, and Qiangmi. The main source for generations was the dried ripe fruit of Cnidium monnieri, and ancient and modern consistent. From the Eastern Han dynasty to Tang dynasty, the origin of Cnidii Fructus was Zibo, Shandong province. During the Five dynasties, it expanded to Yangzhou in Jiangsu province and Xiangyang in Hubei province, the Song dynasty added Shangqiu in Henan province, and it was considered that Yangzhou, Xiangyang and Shangqiu were its genuine producing areas. It was more widely distributed in Ming and Qing dynasties. After the founding of the People's Republic of China, the origin is clearly distributed throughout the country. For its quality evaluation, generally full grain, gray yellow color, strong aroma is the best. The harvesting period in the past dynasties was mostly the fifth lunar month, and the fruit was collected to remove impurities and dry. The mainstream processing in producing area of the past dynasties was net selection of raw products, mixing and steaming with the juice of Rehmanniae Radix and stir-frying were the mainstream processing methods in the past, there were also stir-frying with honey, stir-frying with salt and rice wine, immersing and steaming with rice wine and other methods. In recent times, it has been used in raw products as medicine. Sheng Nong's Herbal Classic recorded Cnidii Fructus was bitter, Supplementary Records of Famous Physicians recorded its acrid for the first time. It was recorded in the Ming dynasty that its nature was warm, acted on the kidney meridian, and had small toxicity. After the founding of the People's Republic of China, most of the literature classified it as a medicine to attack poison, kill insects and relieve itching with the functions of dispelling pathogenic wind and removing dampness, destroying parasites and elieving itching, warming kidney and activating Yang. Clinical contraindications are mainly contraindicated for people with damp-heat from the lower-jiao or kidney heat. Based on the textual research, it is suggested that when developing the famous classical formulas containing Cnidii Fructus, the source shall be the dried ripe fruit of C. monnieri, and then it shall be processed according to the original formulas. If there is no requirement for processing in the formulas, the raw products can be taken into medicine.
7.A Randomized Controlled,Double-Blind Study on Huaban Jiedu Formulation (化斑解毒方) in the Treatment of Psoriasis Vulgaris with Blood-Heat Syndrome
Xuewen REN ; Yutong DENG ; Huishang FENG ; Bo HU ; Jianqing WANG ; Zhan CHEN ; Xiaodong LIU ; Xinhui YU ; Yuanwen LI
Journal of Traditional Chinese Medicine 2025;66(16):1679-1686
ObjectiveTo evaluate the clinical efficacy and safety of Huaban Jiedu Formulation (化斑解毒方, HJF) in treating psoriasis vulgaris with blood-heat syndrome. MethodsA randomized, double-blind, placebo-controlled study was conducted with 60 patients diagnosed with psoriasis vulgaris of blood-heat syndrome. Patients were randomly assigned to either a treatment group or a control group, with 30 cases in each. The treatment group received HJF granules orally, one dose a day, combined with topical Qingshi Zhiyang Ointment (青石止痒软膏), while the control group received placebo granules, one dose a day, combined with the same topical ointment. Both groups were topically treated twice daily of 28 days treatment cours. Psoriasis area and severity index (PASI), visual analogue scale for pruritus (VAS), traditional Chinese medicine (TCM) syndrome scores, dermatology life quality index (DLQI), and psoriasis life stress inventory (PLSI) were assessed before treatment and on day 14 and day 28. Response rates for PASI 50 (≥50% reduction) and PASI 75 (≥75% reduction), as well as overall clinical efficacy, were compared between groups. Serum levels of interleukin-6 (IL-6) and interleukin-17 (IL-17) were measured before and after 28 days of treatment. Adverse reactions during treatment were recorded. ResultsAfter 28 days of treatment, both groups showed significant reductions in PASI total score, lesion area score, erythema, scaling, and infiltration scores, pruritus VAS score, TCM syndrome score, DLQI, PLSI, and serum IL-6 and IL-17 levels (P<0.05). Compared to the control group, the treatment group had significantly greater improvements in PASI total score and erythema score, TCM syndrome score, serum IL-6 and IL-17 levels, and PASI 50 response rate after 28 days (P<0.05). Between-group comparisons of score differences before and after 28-day treatment revealed that the treatment group showed significantly better improvements in PASI total, lesion area score, erythema score, TCM syndrome score, DLQI, PLSI, and inflammatory markers (P<0.05 or P<0.01). The total effective rate on day 14 and day 28 was 40.00% (12/30) and 83.33% (25/30) in the treatment group, versus 6.90% (2/29) and 41.38% (12/29) in the control group, respectively. The clinical efficacy in the treatment group was significantly superior to that in the control group (P<0.05). Mild gastric discomfort occurred in 3 patients in the treatment group and 1 in the control group. ConclusionHJF can effectively improve skin lesions and TCM symptoms relieve pruritus, enhance quality of life, and reduce inflammatory markers IL-6 and IL-17, in patients with blood-heat syndrome of psoriasis vulgaris, with a good safety profile.
8.Risk factor analysis and nomogram prediction model construction for pneumonia complicating infectious mononucleosis in adults
Fei HU ; Mei-Juan PENG ; Xu-Yang ZHENG ; Rui LI ; Jia-Yi ZHAN ; Hai-Feng HU ; Hong-Kai XU ; Deng-Hui YU ; Hong DU ; Jian-Qi LIAN
Medical Journal of Chinese People's Liberation Army 2025;50(11):1359-1365
Objective To investigate the risk factors for pneumonia complicating infectious mononucleosis(IM)in adults and construct a nomogram prediction model.Methods A retrospective analysis was conducted on 198 IM patients admitted to the Second Affiliated Hospital of Air Force Medical University from January 2015 to December 2021.Patients were divided into pneumonia group(n=52)and non-pneumonia group(n=146)based on whether pulmonary infection occurred during hospitalization.The baseline data(age,gender,place of onset,etc.),clinical manifestations(maximum body temperature,lymph node enlargement,splenomegaly,etc.),and inflammatory indicators[white blood cell count(WBC),C-reactive protein(CRP),etc.]were compared between the two groups.Kaplan-Meier curves were plotted to analyze the key indicators affecting the hospital stay of IM patients.Multivariate logistic regression was used to analyze the independent risk factors for pneumonia complicating IM in adults and construct a nomogram prediction model based on the identified risk factors.The predictive efficacy of the model was evaluated using the receiver operating characteristic(ROC)curve and the consistency of the model was assessed using the calibration curve.The fit of the model was evaluated using the Hosmer-Lemeshow test.Additionally,the sensitivity,specificity,and accuracy of the model were assessed using confusion matrix.Results Compared with non-pneumonia group,the pneumonia group had a significantly higher proportion of patients from rural areas,with body mass index(BMI)≥24 kg/m2,smoking history,hepatomegaly,fever duration of≥7 d,as well as increased total hospitalization costs and average daily hospitalization costs,and prolonged hospital stay(P<0.05).The proportion of patients with a history of antibiotic use was lower in the pneumonia group(P<0.05).Kaplan-Meier survival analysis showed that patients from rural areas,with BMI≥24 kg/m2,smoking history,no prophylactic use of antibiotics,fever duration≥7 d,and hepatomegaly had significantly prolonged hospital stays(P<0.05).Multivariate logistic regression analysis revealed that living in a rural area(OR=4.089,P<0.05),hepatomegaly(OR=4.082,P<0.05),and elevated WBC(OR=1.205,P<0.05)were independent risk factors for pneumonia complicating IM in adults,while the prophylactic use of antibiotics(OR=0.142,P<0.05)was an independent protective factor.The area under the ROC curve of the constructed nomogram prediction model was 0.827(95%CI 0.762-0.892),and the slope of the calibration curve was close to 1,and the Hosmer-Lemeshow test showed χ2=5.299,P=0.725,indicating good consistency and fit of the prediction model.The results of the confusion matrix assessment showed that the sensitivity of the model was 0.669(0.624-0.773),the specificity was 0.827(0.724-0.930),and the accuracy was 0.732(0.665-0.793).Conclusion The nomogram prediction model based on place of onset,hepatomegaly,the prophylactic use of antibiotics and WBC has excellent fit and discrimination,providing an effective quantitative tool for prognosis assessment of IM.
9.Advances in roles of caspases in programmed cell death
Yuru HU ; Zhan LI ; Tao LI ; Hui WANG
Military Medical Sciences 2025;49(6):465-472
The caspase family is a conserved cysteine protease with similar amino acid sequences,structures and enzyme characteristics.Caspase is a single polypeptide with a molecular weight of 30-50 kDa,which is composed of three domains:the N-terminal pre-domain,the large submit of 20 kDa and the small submit of 10 kDa.Programmed cell death plays a pivotal role in bodily immune responses to infections byclearing infected cells,activating immune responses of cells and regulating the balance of immune cells,so it is one of the important mechanisms through which the body resists pathogens.The activation and regulation of the caspase family are critical to programmed cell death.This article reviews the latest research progress in caspase activation and its mechanism in programmed cell death.
10.Protective effect of N- acetylcysteine on liver damage caused by α -amanita toxin poisoning by regulating mitochondrial dynamic imbalance
Yun CHEN ; Jin WU ; Yuanlan LU ; Yu NI ; Jie HU ; Jiangshan ZHAN
Chinese Journal of Emergency Medicine 2025;34(10):1396-1402
Objective:To investigate the protective effect of N-acetylcysteine (NAC) against α-amanitin (α-AMA)-induced liver injury via regulation of mitochondrial dynamic imbalance.Methods:Thirty-two ICR mice were randomly (random number) assigned to four groups ( n = 8 per group): normal control, NAC control, α-AMA poisoning, and α-AMA + NAC treatment group. After modeling, behavioral changes were observed and survival curves were plotted. Liver function markers and oxidative stress indicators were measured using ELISA. Pathological damage in liver tissue was examined, and mitochondrial ultrastructural changes were observed via transmission electron microscopy, followed by mitochondrial injury scoring. Survival rates were analyzed using the Kaplan–Meier method. One-way ANOVA was used for intergroup comparisons, followed by pairwise comparisons. Results:Compared with the control group, α-AMA intoxication significantly reduced survival rates and increased serum ALT and AST levels ( P < 0.05). Liver tissues exhibited disordered hepatic cord arrangement, cytoplasmic loosening, and edema. Mitochondria showed moderate to severe swelling, cristae fragmentation, matrix dissolution, and vacuolation, along with increased injury scores ( P < 0.05). Oxidative markers MDA and ROS were elevated, while antioxidant enzymes SOD and CAT were decreased (all P < 0.05). Mitochondrial activity was impaired, expression of fusion proteins OPA1, MFN1, and MFN2 was downregulated, and fission protein DRP1 was upregulated (all P < 0.05). Compared with the α-AMA group, NAC treatment significantly improved survival, reduced ALT and AST levels ( P < 0.05), alleviated pathological and mitochondrial ultrastructural damage, decreased MDA and ROS, increased SOD and CAT (all P < 0.05), enhanced mitochondrial activity, upregulated OPA1, MFN1, and MFN2, and downregulated DRP1 (all P < 0.05). No significant differences were observed between the normal and NAC control groups. Conclusions:NAC may attenuate α-AMA-induced acute liver injury by maintaining mitochondrial dynamic homeostasis.

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