1.Current status of anticoccidial drug resistance in China
Yidan BAI ; Wenting LI ; Wanxin LUO ; Yuxin YU ; Dongfang LI ; Junlong ZHAO ; Lan HE
Chinese Journal of Schistosomiasis Control 2025;37(2):217-222
Avian coccidiosis, an acute parasitic disease that mainly harms chicks, is widely prevalent across the world, which poses a serious threat to poultry industry. Because of the single prophylactic formulations, veterinary clinical treatment of coccidiosis mainly relies on chemically synthesized agents, polyether ionophores and Chinese herbal medicines. The introduction of novel anticoccidial drugs is slow for a long period of time, and there is an increasing problem of anticoccidial drug resistance following long-term use, which has become an urgent problem to be solved in poultry industry. This review summarizes the levels of anticoccidial drug resistance across China from 2018 to 2023, and analyzes the resistance to various anticoccidial agents in coccidia. It is indicated that the overall prevalence of anticoccidial drug resistance is high in coccidia, and development of novel anticoccidial agents and products with reduced antibiotics use and alternatives of antibiotics is of an urgent need.
2.Effect mechanism of Gualou guizhi granule on neurological function and synaptic plasticity in rats with cerebral ischemia-reperfusion injury
Wenting CHEN ; Shiyi CHEN ; Yanan LI ; Yi FENG ; Shuping LUO ; Yuqin ZHANG
China Pharmacy 2024;35(16):1951-1956
OBJECTIVE To investigate the effect mechanism of Gualou guizhi granule on neurological function and synaptic plasticity in rats with cerebral ischemia-reperfusion injury. METHODS The rats were randomly divided into sham operation group, model group and Gualou guizhi granule group (3.6 g/kg), with 6 rats in each group. The cerebral ischemia-reperfusion injury model was established by the suture occlusion method. Two hours after modeling, the model rats were given relevant medicine or normal saline intragastrically, once a day, for 7 consecutive days. After the last medication, the neurological function of rats was evaluated [calculated by modified neurological severity scores (mNSS) and corner turning percentage]; the neuronal apoptosis rate of brain histiocyte in the ischemic side of rats was detected in each group; the positive expressions of growth associated protein 43 (GAP43) and microtubule associated protein 2 (MAP2) were detected; protein expressions of neuron-specific nuclear protein (NeuN), synaptophysin-1 (Syn-1), postsynaptic density protein-95 (PSD-95), peroxisome proliferators-activated receptor γ (PPARγ), brain-derived neurotrophic factor (BDNF) and tropomyosin receptor kinase B (TrkB), as well as mRNA expressions of NeuN, Syn-1 and PSD-95 were detected. RESULTS Compared with the model group, mNSS, corner turning percentage and neuronal apoptotic rate were decreased significantly in Gualou guizhi granule group (P<0.01); GAP43 represented weak immunoreactivity, and MAP2 represented moderate immunoreactivity; protein expressions of NeuN, Syn-1, PSD-95, PPARγ, BDNF, TrkB and mRNA expressions of Syn-1, NeuN, PSD-95 were all increased significantly (P<0.05 or P<0.01). CONCLUSIONS Gualou guizhi granule can promote synaptic plasticity by activating BDNF/TrkB signaling pathway, thus playing a protective role in cerebral ischemia-reperfusion injury in rats.
3.Application of four qualitative occupational health risk assessment methods for cement dust hazard assessment
Yun WANG ; Li ZHANG ; Wenting HU ; Zhipeng WANG ; Dong LUO ; Zhongquan PENG
Journal of Public Health and Preventive Medicine 2024;35(5):72-76
Objective To compare the application of four domestic and foreign qualitative occupational health risk assessment methods for cement dust hazard assessment and explore their applicability, and to find out a method suitable for qualitative occupational health risk assessment of cement dust. Methods The Risk Assessment Method for Occupational Accidents and Diseases of Romania (Romania method),the Australian Occupational Health and Safety Risk Assessment Method (Australia method),MES method, and the qualitative method of International Council on Mining & Metals (ICMM) were used to assess the occupational health risk of cement dust exposure posts in seven enterprises of Chongqing. The assessment results were analyzed and compared with Spearman correlation analysis, Mann-Whitney U test and weighted Kappa consistency test after standardizing by risk ratio (RR). Results The RRs of the four methods were all positively correlated with cement dust exposure concentration (the correlation coefficients were all greater than 0.6). The Romania method, the Australia method and the qualitative method of ICMM could identify a risk difference between the key posts and non-key posts. The qualitative method of ICMM was difficult to identify high-risk posts that require priority intervention. The Romania method and Australia method had strong consistency (Kappa=0.608, P<0.01), but only the Australia method could identify high-risk posts of cement dust. Conclusion In general, the Australia method is relatively better at identifying the risk differences of cement dust hazard in different posts and is more suitable for occupational health risk assessment of cement dust with more accurate assessment results.
4.Role of microglial polarization in age-related macular degeneration
Yichi* ZHANG ; Xiuxia* YANG ; Pingping LIU ; Mengjie LIU ; Wenting LUO ; Yang LIU ; Chengcheng YANG
International Eye Science 2024;24(12):1863-1872
Microglia, originating from primitive macrophages in the yolk sac, serves as both immune system defenders and regulators of homeostasis. These cells exhibit two primary polarization states: conventionally activated(M1)and alternatively activated(M2). The polarization of microglia plays a crucial role in influencing inflammatory disorders, metabolic imbalances, and neural degeneration. This process is implicated in various aspects of ocular diseases, especially age-related macular degeneration(AMD), including inflammation, oxidative stress and pathological angiogenesis. The distinct functional phenotypes of microglia impact disease progression and prognosis. Thus, regulating the polarization or functional phenotype of microglia at different stages of AMD holds promise for personalized therapeutic approaches. This comprehensive review outlines the involvement of microglia polarization in both physiological and pathological conditions, emphasizing its relevance in AMD. The discussion underscores the potential of polarization as a foundation for personalized treatment strategies for AMD.
5.Efficacy and safety of Liqingtong granules in the treatment of hyperuricemia: A randomized double-blind placebo-controlled pilot clinical trial
Jinlian Liu ; Yi Yang ; Meiyu Lv ; Wenting Fei ; Songrui Di ; Mei Luo ; Qing Lin ; Chun Wang ; Linyuan Wang ; Jianjun Zhang
Journal of Traditional Chinese Medical Sciences 2024;11(4):415-422
Objective:
To investigate the efficacy and safety of Liqingtong (LQT) granules in patients with dampness-heat hyperuricemia.
Methods:
A randomized, double-blind, placebo-controlled pilot trial was conducted at the 983rd Hospital of the Joint Logistic Support Force of the People's Liberation Army from March 15, 2023, to August 10, 2023. In total, 119 participants were enrolled in this trial, and participants were given either LQT granules or placebo for 60 days based on a health education. The primary outcome was serum uric acid (SUA) level, and the secondary outcome was the traditional Chinese medicine (TCM) symptom score, measured on days 0, 30, and 60. Safety indicators, including liver function, kidney function, blood routine, glucose, blood lipid, blood pressure, and heart rate were tested on days 0 and 60 of the trial. The data were analyzed using Prism 9 software, and the significance level was set at P < .05.
Results:
Among 119 participants, six in the LQT granule group and seven in the placebo group dropped out, and 106 participants completed clinical observation. Baseline information, including SUA levels, TCM symptom scores, and other clinical characteristics, did not differ between the groups. At the end of the trial, compared with baseline values, the SUA levels in the LQT granule group decreased (P < .001), and no significant change was observed in the placebo group (P = .422); compared with the placebo group, the SUA levels decreased in the LQT granule group (P = .001). Compared with baseline values, the total TCM symptom scores in the LQT granule group decreased (P < .001), with no change in the placebo group (P = .136). Safety indicators did not differ significantly between the two groups.
Conclusion
The pilot trial demonstrated the potential of LQT granules to lower SUA levels and improve symptoms of dampness and heat.
6.Component-resolved diagnosis of tree pollen allergen: identify key allergens to develop treatment plans
Wenting LUO ; Xianhui ZHENG ; Jiale ZHANG ; Baoqing SUN
Chinese Journal of Preventive Medicine 2024;58(2):268-274
With the increasing global prevalence of tree pollen allergies, there has been a significant impact on the quality of life for populations. In North and Central China, birch pollen, cypress pollen, and plane tree pollen are the most common allergens for springtime pollen allergy sufferers. The distribution of plants and patterns of pollen transmission in different geographical areas result in varying pollen exposure outcomes, further complicating the challenges in diagnosis and individualized treatment. This article delves into the research progress and clinical application of tree pollen allergies based on the "Molecular Allergology User′s Guide 2.0 (MAUG 2.0) " published by the European Academy of Allergy and Clinical Immunology (EAACI). It discusses major allergen families and component proteins of tree pollen such as PR-10 proteins, profilins, polcalcins, as well as cross-reactive components that may cause pollen-food allergy syndrome. Allergen component diagnostics can distinguish true allergy sufferers from those with multiple allergen reactions, enabling more targeted selection of allergens for specific immunotherapy, thus enhancing treatment effectiveness. Bet v 1 and Cup a 1, for instance, are specific indicators for immunotherapy in birch and cypress allergy patients. Overall, this article provides cutting-edge information for professionals in the field of tree pollen allergies, offering in-depth exploration of tree pollen allergen component proteins, clinical manifestations, and treatment-related research, aiding in better understanding and addressing the challenges of tree pollen allergies.
7.Component-resolved diagnosis of grass pollen allergen: applications in differential diagnosis and specific immunotherapy
Xianhui ZHENG ; Wenting LUO ; Jiale ZHANG ; Baoqing SUN
Chinese Journal of Preventive Medicine 2024;58(3):414-420
Grasses are extensively cultivated worldwide, with the three most common allergenic grass pollen subfamilies being Pooideae in temperate regions, Chloridoideae and Panicoideae in subtropical areas. This article delves into the research progress and clinical applications of grass pollen allergy as delineated in the "Molecular Allergology User′s Guide 2.0" issued by the European Academy of Allergy and Clinical Immunology (EAACI). It compiles epidemiological data on grass pollen, allergenic components, clinical manifestations, and treatment guidelines from both domestic and international sources, providing cutting-edge insights and scientific perspectives for professionals in the field of pollen allergy. The aim is to enhance the understanding of allergenic components, distinguishing between grass pollen allergy and pan-allergen responses with precision through advanced component-resolved diagnostic techniques. This serves to foster novel approaches to characterizing the unique sensitization patterns of grass pollen allergens in China, thereby offering more personalized and targeted diagnostic and therapeutic strategies for clinical practice in the region.
8.Diagnosis strategies for allergenic components of weed pollen: from precision diagnosis to guiding personalized treatment
Xianhui ZHENG ; Wenting LUO ; Aoli LI ; Baoqing SUN
Chinese Journal of Preventive Medicine 2024;58(4):569-576
This article interprets the research progress and clinical applications of weed pollen allergen components as outlined in the European Academy of Allergy and Clinical Immunology (EAACI) guidelines on Molecular Allergology User′s Guide 2.0. The significance of this interpretation lies not only in emphasizing the analysis of patients′ sensitization patterns through advanced allergen component resolved diagnostics (CRD) but also in providing new research perspectives for exploring the unique features of weed pollen allergy in China. The complexity and diversity of weed pollen allergy, including its distribution and prevalence in different geographical regions, the characteristics of allergen component protein families, and their clinical significance, all require in-depth investigation. This interpretation aims to enhance the comprehensive understanding of allergen components in weed pollen allergy among relevant professionals, with the expectation of achieving outstanding progress in diagnosis and treatment. The ultimate goal is to develop more personalized and precise treatment strategies for patients with weed pollen allergy and those reacting to pan-allergens.
9.Diagnosis of allergen components in fungi and microbial communities: patient sensitization characteristics and main sensitizing proteins
Haisheng HU ; Wenting LUO ; Peiyan ZHENG ; Baoqing SUN
Chinese Journal of Preventive Medicine 2024;58(5):711-718
The human body, as a highly complex ecosystem, harbors diverse microbial communities, with major factors triggering allergic reactions encompassing the skin microbiome and fungi. The global diversity of fungi is estimated to range from approximately 600 000 to 1 million species, and theoretically, IgE-mediated sensitization may occur to any fungal species. As of now, the World Health Organization/IUIS official database records 113 fungal allergens originating from 30 different fungi species, covering 42 allergen families. Regarding the skin microbiome, 14 distinct Malassezia allergens have been identified, all derived from three different Malassezia fungi species-- M. furfur, M. sympodialis, and M. globosa. The conditions of patients with these allergies are exceptionally complex. This article extensively discusses the latest research advancements and clinical applications related to skin microbiome and fungal allergies from the European Academy of Allergy and Clinical Immunology (EAACI) publication, "Molecular Allergology User′s Guide 2.0". Additionally, it compiles information on the sources of fungal allergens, characteristics of allergen component protein families, clinical relevance, and management strategies, both domestically and internationally. The aim is to enhance the profound understanding of allergen components among relevant professionals. Through the application of advanced allergen component diagnostic techniques, the goal is to achieve precise diagnosis and treatment of fungal allergy patients and explore the mechanisms underlying fungal sensitization and pathogenesis, laying the foundation for studying the fungal allergen protein sensitization spectrum in the Chinese population.
10.Analysis of the effect of early subcutaneous specific immunotherapy on the levels of dust mite allergen-specific antibodies and polyunsaturated fatty acid metabolism
Shiyun LI ; Peiyan ZHENG ; Yingying ZHAI ; Yida ZHANG ; Hui GAN ; Huimin HUANG ; Wenting LUO ; Manyun JIANG ; Guizhen ZHANG ; Ruifen ZHONG ; Zhangkai CHENG ; Shixue SUN ; Baoqing SUN
Chinese Journal of Preventive Medicine 2024;58(6):778-790
Objective:To investigate the effects of subcutaneous immunotherapy (SCIT) on patients′ immune markers and metabolic levels in the early stage of allergen treatment, and to gain insight into the role of SCIT in regulating immune responses and metabolic levels, so as to provide reference data for the further discovery of potential biomarkers.Methods:A longitudinal study was used to include 40 subjects who underwent SCIT with dust mite allergens in the Department of Pediatrics of the First Affiliated Hospital of Guangzhou Medical University between November 2017 and February 2022, including 20 subjects each of single mite subcutaneous immunotherapy (SM-SCIT) and double mite subcutaneous immunotherapy (DM-SCIT). In this study, levels of dust mite allergen-specific antibodies and polyunsaturated fatty acid metabolism were measured before and 12 months after treatment, while pulmonary function tests were performed. The therapeutic effects of the patients were followed up by visual analogue scale (VAS), asthma control test (ACT) and total medication scores (TMS). The results were statistically analyzed using t-test and Mann-Whitney U-test. Results:After 12 months of treatment with SCIT, both groups showed a significant decrease in total VAS score (SM-SCIT: Z=-2.298, P<0.05; DM-SCIT: Z=-3.411, P<0.001); total ACT score (SM-SCIT: Z=-2.054, P<0.05; DM-SCIT: Z=-2.014, P<0.05) and total medication scores (SM-SCIT: Z=-3.799, P<0.000 1; DM-SCIT: Z=-3.474, P<0.001) were significantly higher, in addition to significantly higher MMEF75/25 values in the DM-SCIT group ( t=-2.253, P<0.05). There was no significant change in sIgE in the SM-SCIT group ( P>0.05), and the sIgG4 levels of the Der p, Der f, p 1, p 2, f 2, and p 21 fractions were significantly elevated ( Z=-2.651, -3.771, -2.949, -2.912, -2.725, -2.128, and -3.285, respectively, all P<0.05); The sIgE of Der p 2, f 2, p 7 and p 23 fractions( Z=-2.651, -3.771, -2.949, -2.912, -2.725, -2.128, -3.285, all P<0.05) and the sIgG4 levels of the Der p, Der f, p 1, p 2, f 1, f 2, p 10, p 21 and p 23 fractions ( Z=-3.808, -3.845, -3.061, -2.688, -2.464, -3.211, -2.371, -2.091, -2.427, all P<0.05) of the DM-SCIT group were significantly elevated. Metabolomics analysis showed that arachidonic acid, docosahexaenoic acid, docosapentaenoic acid, eicosapentaenoic acid, 5, 9, 12-octadecatrienoic acid, 5(S)-hydroxylated eicosatetraenoic acid, and dihomo-gamma-linolenic acid were significantly elevated at the beginning of the treatment period after SM-SCIT treatment ( Z of -2.191, -2.497, -1.988, -2.090, -2.19, -2.803, -2.073, all P<0.05); 5(S)-hydroxylated eicosatetraenoic acid showed elevated and alpha-linolenic acid, eicosadienoic acid, and eicosapentaenoic acid were significantly decreased in the DM-SCIT group after treatment ( Z=-1.988, -2.090, -2.497, -1.988, respectively, all P<0.05). Correlation analysis showed that arachidonic acid was significantly negatively correlated with changes in dust mite-specific IgG4 ( r=-0.499, P<0.05), and that alpha-linolenic acid, 5, 9, 12-octadecatrienoic acid, and eicosapentaenoic acid were positively correlated with the ΔsIgG4 of the dust mite der p 2 ( r=0.451, 0.420, 0.474, respectively; all P<0.05). Conclusion:Significant changes in allergen-specific antibody levels and polyunsaturated fatty acid metabolism levels occur during SCIT, and the two may interact and influence each other.


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