1.Trend in disease burden of injuries among children and adolescents in China from 1990 to 2021
GUO Shihong ; HUANG Jingjing ; CHEN Yi ; LI Qingqing ; LIU Chunting ; HE Yunyan ; MENG Tingting ; ZHOU Jiali
Journal of Preventive Medicine 2025;37(10):1069-1074
Objective:
To investigate the trend in disease burden of injuries among children and adolescents in China from 1990 to 2021, so as to provide a basis for formulating prevention and control strategies and reducing this disease burden.
Methods:
Data on mortality, disability-adjusted life years (DALY) rate, incidence, and prevalence of injuries among children and adolescents aged <20 years in China from 1990 to 2021 were collected from the Global Burden of Disease (GBD) 2021 database. All rates were standardized using the GBD 2021 world standard population. The trend in incidence of disease burden of injuries among children and adolescents across differents genders and ages from 1990 to 2021 was evaluated using average annual percent change (AAPC).
Results:
From 1990 to 2021, the standardized mortality (AAPC=-5.435%), standardized DALY rate (AAPC=-5.311%), standardized incidence (AAPC=-0.466%), and standardized prevalence (AAPC=-0.810%) of injuries among children and adolescents in China showed downward trends (all P<0.05). Among these, the standardized mortality of animal contact (AAPC=-9.138%) and the standardized DALY rate of medical side effects (AAPC=-8.389%) decreased at a relatively fast pace, while the standardized incidence of falls (AAPC=0.083%) and the standardized prevalence of exposure to natural forces (AAPC=2.656%) showed upward trends (all P<0.05). The standardized mortality, standardized DALY rate, standardized incidence and standardized prevalence of injuries were higher in males than in females. The trend in males showed a downward trend (all P<0.05), consistent with the total population. The crude incidence of injuries in the group aged 15-<20 years showed an upward trend (AAPC=0.391%, P<0.05), while the trend in the group aged 10-<15 years was not statistically significant (P>0.05). The crude incidence of injuries in the groups aged 5-<10 years and <5 years showed downward trends (AAPC=-0.488% and -2.275%, both P<0.05). In 2021, the <5 years age group had the highest crude mortality and crude DALY rate of injuries, at 13.94/100 000 and 1 257.26/100 000, respectively. The 15-<20 years age group exhibited the highest crude incidence and crude prevalence, at 4 874.05/100 000and 4 050.35/100 000, respectively. Drowning and falls were major components of the disease burden across all age groups.
Conclusions
From 1990 to 2021, the disease burden of injuries among children and adolescents in China showed an overall downward trend. The disease burden was consistently higher in males than in females. Children aged <5 years face a high risk of fatality and disability, while adolescents aged 15-<20 years experience a high incidence and frequency of injuries. Drowning and falls were key priorities for prevention and control.
2.SRSF7 promotes pulmonary fibrosis through regulating PKM alternative splicing in lung fibroblasts.
Tongzhu JIN ; Huiying GAO ; Yuquan WANG ; Zhiwei NING ; Danyang BING ; Yan WANG ; Yi CHEN ; Xiaomu TIAN ; Qiudi LIU ; Zhihui NIU ; Jiayu GUO ; Jian SUN ; Ruoxuan YANG ; Qianqian WANG ; Shifen LI ; Tianyu LI ; Yuhong ZHOU ; Wenxin HE ; Yanjie LU ; Yunyan GU ; Haihai LIANG
Acta Pharmaceutica Sinica B 2025;15(6):3041-3058
Idiopathic pulmonary fibrosis (IPF), a chronic interstitial lung disease, is characterized by aberrant wound healing, excessive scarring and the formation of myofibroblastic foci. Although the role of alternative splicing (AS) in the pathogenesis of organ fibrosis has garnered increasing attention, its specific contribution to pulmonary fibrosis remains incompletely understood. In this study, we identified an up-regulation of serine/arginine-rich splicing factor 7 (SRSF7) in lung fibroblasts derived from IPF patients and a bleomycin (BLM)-induced mouse model, and further characterized its functional role in both human fetal lung fibroblasts and mice. We demonstrated that enhanced expression of Srsf7 in mice spontaneously induced alveolar collagen accumulation. Mechanistically, we investigated alternative splicing events and revealed that SRSF7 modulates the alternative splicing of pyruvate kinase (PKM), leading to metabolic dysregulation and fibroblast activation. In vivo studies showed that fibroblast-specific knockout of Srsf7 in conditional knockout mice conferred resistance to bleomycin-induced pulmonary fibrosis. Importantly, through drug screening, we identified lomitapide as a novel modulator of SRSF7, which effectively mitigated experimental pulmonary fibrosis. Collectively, our findings elucidate a molecular pathway by which SRSF7 drives fibroblast metabolic dysregulation and propose a potential therapeutic strategy for pulmonary fibrosis.
3.Clinical value of metabolomics in assessing the malignant risk of pulmonary nodules
Xiaoxuan LI ; Zhipeng XIA ; Rumei LUAN ; Yunyan WAN ; Zhouhong YAO ; Xinshan LIN ; Dianjie LIN
Journal of International Oncology 2025;52(7):409-413
Objective:To evaluate the diagnostic value of non-targeted detection of metabolic fingerprinting in pulmonary nodules and to analyze the clinical effective model of multi-omics for assessing the malignant risk of pulmonary nodules.Methods:A total of 73 patients who underwent chest CT and completed pathological diagnosis and non-targeted detection of metabolic fingerprinting at Shandong Provincial Hospital Affiliated to Shandong First Medical University from November 2021 to October 2024 were selected as the research subjects. According to the postoperative histopathological diagnosis, the patients were divided into the lung malignant nodule group (61 cases) and the lung benign nodule group (12 cases). General clinical data of the patients, including sex, age, smoking history, and family history of tumors, as well as imaging data, including nodule density, nodule size, nodule location, nodule number, and special imaging manifestations (spiculation, lobulation, vacuole sign, vascular convergence sign, etc.), and non-targeted detection of metabolic fingerprinting results were collected. The above data were compared between the two groups of patients, and the receiver operator characteristic (ROC) curve was drawn to evaluate the predictive value of each model. Results:There were statistically significant differences in age ( t=4.41, P<0.001), nodule size ( Z=2.67, P=0.008), nodule density ( χ2=4.64, P=0.031), and spiculation ( χ2=7.67, P=0.006) between the lung malignant nodule group and the lung benign nodule group. There were no statistically significant differences in sex, smoking history, family history of lung cancer, nodule number, nodule location, lobulation, vacuole sign, vascular convergence sign, pleural indentation sign, calcification sign, bronchial truncation sign, vascular supply sign, and bronchial air sign (all P>0.05). The number of non-targeted detection of metabolic fingerprinting high-risk patients in the lung malignant nodule group (36 cases) was significantly higher than that in the lung benign nodule group (0 case) ( χ2=13.97, P<0.001). ROC curve analysis showed that the area under the curve of the Brock model combined with non-targeted detection of metabolic fingerprinting was 0.930 (95% CI: 0.872-0.988), which was greater than that of the Brock model (0.856, 95% CI: 0.769-0.942, Z=0.27, P=0.040) and non-targeted detection of metabolic fingerprinting (0.768, 95% CI: 0.650-0.887, Z=0.30, P=0.004) alone. Conclusions:Non-targeted detection of metabolic fingerprinting risk assessment may serve as a non-invasive method to assist the Brock model in the diagnosis of pulmonary nodules and has good application value. The combination of the Brock model and non-targeted detection of metabolic fingerprinting can more accurately distinguish the benign and malignant nature of pulmonary nodules.
4.Effect of nourishing yin and tonifying yang method on inflammatory response and bone metabolism in patients with type 2 diabetes mellitus complicated with osteoporosis
Lingyun MA ; Defeng LIU ; Airu LIU ; Nana ZHANG ; Jiatong SONG ; Weiyu BIAN ; Yujuan JI ; Yunyan JI ; Wendong LI ; Xiu'e CHI
International Journal of Traditional Chinese Medicine 2025;47(3):312-317
Objective:To investigate the effect of nourishing yin and tonifying yang method on inflammatory response and bone metabolism in patients with T2DM complicated with osteoporosis (OP).Methods:A randomized controlled trial. From January 2022 to December 2023,80 patients with T2DM and OP in our hospital were selected as the observation objects, and they were divided into two groups by random number table method, with 40 cases in each group.On the basis of conventional treatment, the control group chewed vitamin D calcium chewable tablets, and the observation group added nourishing yin and tonifying yang Chinese medicine.Both groups were treated for 6 months. TCM syndrome scores were performed before and after treatment ;the levels of fasting blood glucose (FPG), 2 hPG and HbA1c were detected by intelligent blood glucose monitor;the levels of serum neutrophils and lymphocytes were detected by automatic blood analyzer, and the neutrophil/lymphocyte ratio (NLR) was calculated;the levels of serum IL-1β and TNF-α were detected by automatic chemiluminescence analyzer, the levels of type I procollagen amino terminal propeptide (PINP), type I collagen carboxy terminal peptide β special sequence (β-CTX) and 25-hydroxy vitamin D3 [25-(OH)D3] were detected by ELISA;Bone mineral density (BMD) was detected by bone mineral density detector. The adverse reactions during treatment were observed and recorded, and the clinical efficacy was evaluated.Results:The total effective rate was 92.5 %(37/40) in the observation group and 75.0 % (30/40) in the control group,the difference between the two groups was statistically significant ( χ2=4.50, P=0.034).After treatment, the scores of soreness and weakness of waist and knees, soreness and pain of waist and back, clear and long urine, pale tongue and white coating in the observation group were lower than those in the control group ( t=3.11, 3.75, 3.51, 3.74, P<0.01);the levels of serum FPG, 2 hPG and HbA1c in the observation group were lower than those in the control group ( t=3.11,3.20,3.39, P<0.01).The levels of serum NLR (2.63 ± 0.68 vs. 3.24 ± 0.79, t=3.70), IL-1β [(81.65 ± 8.30) ng/L vs. (89.03 ± 8.98) ng/L, t=3.82] and TNF-α [(35.14 ± 5.11) μg/L vs. (39.96 ± 5.38) μg/L, t=4.11] in the observation group were lower than those in the control group ( P<0.01). After treatment, the levels of PINP [(29.83 ± 3.92) ng/L vs. (34.02 ± 4.03) ng/L, t=4.71] and β-CTX [(21.30 ± 3.95 ) ng/L vs. (25.32 ± 4.18) ng/L, t=4.42] in the observation group were lower than those in the control group ( P<0.01), the levels of 25-(OH)D3 [(42.86 ± 5.12) μg/L vs. (38.08 ± 4.55) μg/L, t=4.41] and BMD [(0.90 ± 0.18) g/cm 3vs. (0.78 ± 0.16) g/cm 3, t=3.15] were higher than those in the control group ( P<0.01).During the treatment, the incidence of adverse reactions was 12.5% (5/40) in the observation group and 10.0 % (4/40) in the control group,there was no significant difference between the two groups ( χ2=0.13, P=0.723). Conclusion:The method of nourishing yin and tonifying yang can effectively improve the TCM syndromes of T2DM patients with OP, reduce the levels of blood glucose and inflammatory factors, improve bone metabolism, improve clinical efficacy and have good treatment safety.
5.Clinical characteristics and prognosis of primary aldosteronism associated with subclinical Cushing syndrome
Yunyan LIAO ; Ying SONG ; Jinbo HU ; Shumin YANG ; Yan ZHENG ; Qifu LI
Chinese Journal of Internal Medicine 2024;63(4):378-385
Objective:To analyze the clinical characteristics and prognosis of patients with primary aldosteronism (PA) associated with subclinical Cushing syndrome (SCS).Methods:This retrospective cohort study was conducted at the First Affiliated Hospital of Chongqing Medical University in China. Patients with PA were included between January 2014 and December 2022. According to the results of 1-mg overnight dexamethasone suppression test, the patients were divided into the PA group and PA associated with SCS (PA/SCS) group. The demographic information, hormone levels, and follow-up results were analyzed. Independent sample t-test, chi-square test and Mann-Whitney U test were used for data comparison. Results:A total of 489 PA patients were enrolled in this study, of which 109 had PA/SCS (22.3%). Patients with SCS were on average older (54.4±10.7 vs . 47.4±11.0, P<0.001); had a larger proportion of women (69.7%, 76/109 vs . 57.4%, 218/380; P=0.020); and a longer duration of hypertension [96 (36, 180) vs . 60 (12, 120) months, P=0.001] than patients without SCS. There were 215 and 51 patients in the PA group and PA/SCS group, who completed adrenalectomy and follow-up, respectively. The remission rate of autonomous cortisol secretion in the PA/SCS group was 85.3% (29/34). There was no significant difference in the remission rate of autonomous aldosterone secretion among patients between the PA/SCS and PA group (94.1%, 48/51 vs. 94.4%, 203/215; P=1.000), while the clinical remission rate in the PA/SCS group was lower than that in the PA group (39.2%, 20/51 vs. 61.9%, 133/215; P=0.003). Conclusions:SCS is common in PA patients (22.3%), and the clinical remission rate is low. Screening using the 1-mg overnight dexamethasone suppression test is recommended for all patients with PA.
6.Role of Autophagy in Ulcerative Colitis and Chinese Medicine Intervention: A Review
Maoguang HUANG ; Sheng XIE ; Jinxin WANG ; Feng LUO ; Yunyan ZHANG ; Yueying CHEN ; Shengnan CAI ; Xiaoyan HUANG ; Liqun LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(4):281-289
Ulcerative colitis (UC) is a chronic inflammatory bowel disease with complex etiology. The pathogenesis of this disease, due to a combination of factors, is complex and has not yet been elucidated. Among them, intestinal mucosal barrier damage is the basic pathological change of UC. As a non-destructive response of cells, autophagy regulates intestinal mucosal immunity, inflammation, oxidative stress, and bacterial homeostasis through degradation and reabsorption to actively repair damaged intestinal mucosal barrier, exerting a key role in the occurrence and development of UC. The disease is mainly treated clinically with aminosalicylic acid preparations, glucocorticoids, and immunosuppressants. Western medicine treatment of the disease has a fast onset of effect, and the short-term efficacy is definite, but the long-term application is easy to be accompanied by more adverse reactions. Moreover, some drugs are expensive, bringing great physical and mental pain and economic burden to patients. Therefore, it is urgent to explore new therapies with stable efficacy and mild adverse effects. In recent years, a large number of studies have shown that Chinese medicine can regulate autophagy of the intestinal mucosa with multiple targets and effects and repair the intestinal mucosal barrier function, thereby inhibiting the development of UC. Many experiments have shown that the active ingredient or monomers and compound formulas of Chinese medicine can improve the immunity of the intestinal mucosa, inflammation, oxidative stress, and flora by regulating the level of autophagy to maintain the normal function of the intestinal mucosal barrier to effectively intervene in UC, providing a new measure for the prevention and treatment of UC. However, there is a lack of systematic review of Chinese medicine in regulating the level of autophagy in the intestinal mucosa for the prevention and treatment of UC. Therefore, based on the current research on UC, autophagy process, and Chinese medicine treatment, this article reviewed the relationship of autophagy and its key target proteins with UC to clarify the key role of autophagy in UC production and systematically summarized Chinese medicines targeting the regulation of autophagy to treat UC in recent years to provide new ideas for the treatment and drug development of UC.
7.Chinese Medicine in Treatment of Ulcerative Colitis by Regulating Intestinal Flora: A Review
Maoguang HUANG ; Sheng XIE ; Jinxin WANG ; Feng LUO ; Yunyan ZHANG ; Yueying CHEN ; Xiaoyan HUANG ; Liqun LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(2):267-275
Ulcerative colitis (UC) is a chronic, non-specific inflammatory bowel disease. The pathogenesis of this disease is complex and is attributed to multiple factors. Intestinal mucosal barrier damage is the basic pathological change of UC, and intestinal flora disorder is one of the important characteristics of UC. Intestinal flora plays a key role in the pathological process of UC by regulating intestinal mucosal immunity and inflammatory response to repair the damaged intestinal mucosal barrier. At present, western medicine has the advantages of rapid action onset and significant short-term efficacy, but the curative effect of long-term use is not good, accompanied by many adverse reactions, causing great physical and mental pain to patients. Therefore, it is urgent to explore new treatment methods with definite long-term efficacy and mild adverse reactions. A large number of studies have shown that Chinese medicine can regulate intestinal flora through multiple targets in an all-around way, restore the homeostasis of the flora, and repair the damaged intestinal mucosal barrier, thereby inhibiting the progression of UC. Numerous studies have shown that the active components, monomers, and compounds of Chinese medicine can effectively antagonize UC by regulating the intestinal flora to improve the intestinal mucosal immunity, reduce the inflammatory response of the intestinal mucosa, and restore the normal physiological function of the intestinal mucosal barrier, providing a new strategy for UC prevention and treatment. Although there are some studies of the regulation of intestinal flora by Chinese medicine to prevent and treat UC, those studies have the shortcomings of systematic and comprehensive inadequacy. Therefore, based on the research status of UC, intestinal flora, and Chinese medicine treatment, this study reviewed the relationship between intestinal flora and UC and clarified the key role of intestinal flora in the occurrence and development of UC. At the same time, this paper comprehensively summarized the Chinese medicine that targeted the regulation of intestinal flora for the treatment of UC in the past five years to provide new strategies and ideas for UC treatment.
8.Chinese expert consensus on targeted and immunotherapy combined with concurrent chemoradiotherapy in the treatment of locally advanced cervical cancer
Ping JIANG ; Zi LIU ; Lichun WEI ; Yunyan ZHANG ; Fengju ZHAO ; Xiangkun YUAN ; Yipeng SONG ; Jing BAI ; Xiaofan LI ; Baosheng SUN ; Lijuan ZOU ; Sha LI ; Yuhua GAO ; Yanhong ZHUO ; Song GAO ; Qin XU ; Xiaohong ZHOU ; Hong ZHU ; Junjie WANG
Chinese Journal of Radiation Oncology 2024;33(10):893-901
Concurrent chemoradiotherapy (CCRT) refers to the simultaneous treatment of chemotherapy and radiotherapy, and the effect of radiotherapy is enhanced with low-dose chemotherapy, which can reduce tumor recurrence and metastasis and improve clinical prognosis of patients. At present, the main factors for the increase of radiosensitivity of concurrent chemotherapy is that concurrent chemotherapy prevents the repair of tumor cells, and chemotherapy and radiotherapy act on different cell cycles and have synergistic effects. However, even for patients with locally advanced cervical cancer (LACC) who have undergone CCRT, the 5-year survival rate is only 60%, which is still not ideal. In order to improve the efficacy, researchers have conducted a series of exploratory studies, which consist of the combination of targeted drugs and immunodrugs, and neoadjuvant regimens before CCRT, etc. Although targeted or immunologic drugs are effective treatment of LACC, in view of the lack of large-scale evidence-based medical evidence, multi-center prospective and randomized phase III clinical trials and high-level articles are needed to improve the level of evidence-based medicine. This consensus summarizes several key evidence-based medical studies published recently, especially the clinical research progress in targeted and immunological therapies, providing reference for domestic peers.
9.Effects of fluoride exposure on kidney injury and SIRT3-FOXO3a-PINK1/PARKIN pathway in rats
Juhui SONG ; Wenwen HE ; Ruichao LI ; Yunyan LUO ; Ting ZHANG ; Chanjuan WANG ; Yangting DONG ; Yan HE
Chinese Journal of Endemiology 2024;43(7):528-535
Objective:To investigate the effects of fluoride exposure on kidney injury in rats and the sirtuin 3 (SIRT3)-fork head protein O3a (FOXO3a)-tensin homolog induced putative kinase 1 (PINK1)/E3 ubiquitin ligase (PARKIN) pathway.Methods:Twenty-four 4-week-old SD rats (clean grade, body mass 100 - 150 g) were selected and divided into three groups according to the randomized numeric table: control group, low fluoride group, and high fluoride group, with eight rats in each group (half male and half female). The control group was given free access to tap water (fluoride ion concentration < 0.5 mg/L), while the low fluoride and high fluoride groups were given free access to tap water and sodium fluoride solutions with fluoride ion concentrations of 5.0 and 50.0 mg/L, respectively, for a period of 180 days. The formation of dental fluorosis in rats was observed and recorded, and the femur, urine and blood samples of rats were collected to measure bone fluoride, urinary fluoride, and blood fluoride levels, and to detect kidney function related indicators (serum uric acid, creatinine, and urea nitrogen contents). Morphological changes of renal tissues stained with hematoxylin-eosin (HE) were observed under a light microscope. Real-time fluorescence quantitative PCR (qRT-PCR) and Western blotting were used to detect the mRNA and protein expression levels of renal SIRT3, FOXO3a, PINK1, PARKIN, microtubule associated protein 1 light chain 3 (LC3), autophagy receptor protein (P62), respectively.Results:Seven and one rats in the low and high fluoride groups were found to haveⅠdegree dental fluorosis, while zero and seven rats were found to haveⅡdegree dental fluorosis. Compared with the control group, rats in the low and high fluoride groups had higher levels of bone fluoride (μg/g: 1.18 ± 0.06, 2.16 ± 0.07 vs 0.52 ± 0.05), urinary fluoride (mg/L: 4.43 ± 0.11, 7.46 ± 0.09 vs 2.58 ± 0.14), blood fluoride (μg/ml: 0.77 ± 0.06, 1.68 ± 0.10 vs 0.52 ± 0.08), serum uric acid (μg/ml: 61.01 ± 4.17, 103.92 ± 5.43 vs 28.68 ± 2.91), creatinine (μg/ml: 74.82 ± 9.61, 132.05 ± 5.35 vs 22.38 ± 4.11), and urea nitrogen (μg/ml: 13.36 ± 1.27, 14.55 ± 0.34 vs 0.29 ± 0.07, P < 0.05). Under the light microscope, the kidneys of the control group showed tight and orderly arrangement of renal tubules and glomerular cells, with complete and clear cell contours. The low fluoride group was similar to the control group and no significant abnormalities were observed. The high fluoride group showed abnormal glomerular structure and atrophy, with some areas of renal tubules showing epithelial cell edema and unclear intercellular boundaries. The results of qRT-PCR assay showed that compared with the control group, the low and high fluoride groups had lower mRNA expression levels of SIRT3 (0.82 ± 0.03, 0.58 ± 0.02 vs 1.00 ± 0.08), P62 (0.75 ± 0.07, 0.28 ± 0.09 vs 1.00 ± 0.07, P < 0.05), and higher mRNA expression levels of FOXO3a (1.35 ± 0.04, 3.01 ± 0.23 vs 1.00 ± 0.08), PINK1 (1.58 ± 0.09, 3.28 ± 0.09 vs 1.00 ± 0.07), PARKIN (1.51 ± 0.04, 1.67 ± 0.10 vs 1.00 ± 0.05), LC3 (1.74 ± 0.07, 2.38 ± 0.18 vs 1.00 ± 0.08, P < 0.05). The results of Western blotting showed that compared with the control group, the low and high fluoride groups had lower protein expression levels of SIRT3 (0.91 ± 0.01, 0.55 ± 0.03 vs 1.00 ± 0.01), P62 (0.94 ± 0.27, 0.66 ± 0.38 vs 1.00 ± 0.19, P < 0.05), and higher protein expression levels of FOXO3a (1.14 ± 0.03, 1.22 ± 0.05 vs 1.00 ± 0.02), PINK1 (1.46 ± 0.03, 1.56 ± 0.03 vs 1.00 ± 0.05), PARKIN (1.98 ± 0.02, 2.33 ± 0.11 vs 1.00 ± 0.06), LC3 (4.10 ± 0.58, 4.93 ± 0.33 vs 1.00 ± 0.13, P < 0.05). Conclusion:Exposure to fluoride can cause renal tissue injury in rats, with downregulation of SIRT3 and P62 expression levels, and upregulation of FOXO3a, PINK1, PARKIN, and LC3 expression levels.
10.Seroepidemiological investigation and analysis of Toxoplasma gondii in humans, dogs and cats in Mile City, Mang City and Lianghe County of Yunnan Province
Jiangli LU ; Jinchun LI ; Rong WEI ; Yunyan LUO ; Rudan HONG ; Jiaxiang YIN
Chinese Journal of Endemiology 2024;43(7):542-548
Objective:To investigate the seroepidemiological status of Toxoplasma gondii among humans, dogs and cats and its influencing factors in three counties of Yunnan Province, and to assess the risk of dogs and cats transmitting Toxoplasma gondii to humans and causing disease and epidemics. Methods:Three pestis foci of demestic rodent in Mile City, Mang City and Lianghe County in Yunnan Province were selected as the investigation areas, and blood samples of humans, dogs and cats from 16 natural villages were collected. Serum IgG antibodies against Toxoplasma gondii were detected by indirect enzyme-linked immunosorbent assay, and the influencing factors were analyzed by logistic regression. Results:A total of 368 human serum samples, 307 dog serum samples, and 12 cat serum samples were tested. The positive rates of serum IgG antibodies against Toxoplasma gondii in humans, dogs and cats were 54.62% (201/368), 90.88% (279/307), and 91.67% (11/12), respectively. Logistic regression analysis showed that the risk of Toxoplasma gondii infection (serum IgG antibodies positive) in humans of Mang City and Lianghe County were 8.20 times ( AOR = 8.20, 95% CI: 4.38 - 15.36) and 2.22 times ( AOR = 2.22, 95% CI: 1.24 - 3.97) higher than those in Mile City, respectively, and the risk of Toxoplasma gondii infection (serum IgG antibodies positive) in humans in the age group of 30 - < 40 years old decreased by 57% compared to the age group of 30 years old ( AOR = 0.43, 95% CI: 0.19 - 0.98, P < 0.10). The risk of Toxoplasma gondii infection (serum IgG antibodies positive) in dogs of Lianghe County was 89% lower than that in Mile City ( AOR = 0.11, 95% CI: 0.02 - 0.47). The risk of Toxoplasma gondii infection(serum IgG antibodies positive) in dogs aged 2 years old and older was 2.05 times higher than that in dogs aged younger than 2 years old ( AOR = 2.05, 95% CI: 0.91 - 4.64, P < 0.10). Conclusions:The positive rates of serum IgG antibodies against Toxoplasma gondii in humans, dogs and cats in the three counties where the three pestis foci of demestic rodent are located in Yunnan Province is relatively high. The risk of Toxoplasma gondii infection (serum IgG antibodies positive) in humans, dogs is related to the region and age. The risk of dogs and cats transmitting Toxoplasma gondii to humans and other animals is relatively high. It is necessary to strengthen monitoring in key regions, carry out health education, and take corresponding health measures.


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