1.Research progress on the molecular genetic mechanism of Parkinson's disease.
Chinese Journal of Medical Genetics 2026;43(2):151-157
The pathogenesis of Parkinson's disease is closely related to genetic factors. This article has systematically reviewed the research progress of molecular genetic mechanism on Parkinson's disease by focusing on the role of six high-penetrance pathogenic genes (SNCA, LRRK2, PRKN, PINK1, PARK7, and VPS35) and some risk genes (such as GBA1). These genetic variants eventually converge in three core pathogenic biological pathways, including lysosomal-autophagy pathway disorder, mitochondrial quality control disorder and α-synuclein metabolic abnormality. In-depth understanding of these molecular mechanisms is of great significance for the development of targeted therapy and realization of precision medicine for this disease.
Humans
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Parkinson Disease/metabolism*
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alpha-Synuclein/genetics*
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Leucine-Rich Repeat Serine-Threonine Protein Kinase-2/genetics*
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Genetic Predisposition to Disease
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Protein Kinases/genetics*
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Animals
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Glucosylceramidase/genetics*
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Ubiquitin-Protein Ligases/genetics*
2.Aquaporin 1 promotes proliferation and migration of tumor by up-regulating claudin-1 expression in colon cancer
Wei Wei XIE ; Lin XU ; Qian LI ; Dao Quan ZHANG ; Yu Bao ZHOU
Journal of Pathology and Translational Medicine 2026;60(3):307-318
With the rising incidence of colon cancer, several studies have indicated that aquaporin 1 (AQP1) expression is associated with the development of colon cancer. This study aims to elucidate the potential molecular mechanisms between them. Methods: We screened data from The Cancer Genome Atlas (TCGA) database and retrospectively examined AQP1 protein expression in 127 colon cancer patients to analyze the relationship between AQP1 expression and pathological stages, prognosis. We created stable colon cancer cell lines with differential AQP1 expression, the effect of AQP1 expression on the proliferation and migration of colon cancer cells was assessed by in vitro and in vivo studies, and explored potential molecular mechanisms through Western blotting. Results: High AQP1 expression was associated with poorer survival (overall survival [OS], p = .028) in colon cancer patients from the TCGA database. Similarly, retrospective clinical data indicated that high AQP1 expression was associated with reduced disease-free survival and OS (p = .036 and p = .017, respectively). The low-expressing AQP1 colon cancer cells exhibited a decrease in proliferation and migration ability of colon cancer cells compared to the overexpressing AQP1 group (p < .05) in vitro and in vivo. Immunohistochemistry and western blotting experiments validated heightened expression of N-cadherin, vimentin, and claudin- 1 in the tumor tissues of the overexpressing AQP1 group. Conversely, reduced AQP1 expression resulted in decreased expression of claudin- 1. Conclusions: AQP1 correlates with unfavorable prognosis in colon cancer and potentially enhances the proliferation and migration of colon cancer by up-regulating claudin-1 expression.
3.The Clinical and Genetics Characteristics of Oculopharyngodistal Myopathy
Jiaxi YU ; Zhihao QUAN ; Yilei ZHENG ; Jing AN ; Jing LIU ; Qingqing WANG ; Lingchao MENG ; Meng YU ; Zhiying XIE ; Jianwen DENG ; He LYU ; Wei ZHANG ; Yun YUAN ; Zhaoxia WANG
JOURNAL OF RARE DISEASES 2026;5(2):164-174
To analyze the clinical and genetic features of oculopharyngodistal myopathy (OPDM) patients and compare the phenotypic differences among various causative genes. A total of 65 genetically confirmed OPDM patients from 43 unrelated families, who were admitted to the Department of Neurology, Peking University First Hospital between January 2008 and December 2025, were retrospectively included.The general demographic data, clinical manifestations, laboratory/auxiliary examinations, muscle pathology, and genetic test results were systematically collected and analyzed. The clinical and pathological characteristics among different OPDM subtypes were compared. Among the 65 patients(39 male and 26 female), the mean age of onset was (31.20±10.43) years (range: 14 to 63 years). The initial symptom was predominantly distal limb weakness (67.44%), which gradually progressed to involve the extraocular muscles, pharyngeal muscles, facial muscles and proximal limb muscles. Serum creatine kinase levels were mildly to moderately elevated. Muscle pathological examinations revealed rimmed vacuoles and intranuclear inclusions (within muscle fibers). The mean duration from onset to diagnosis was (12.33±7.88) years (range: 1 to 32 years). All probands had negative results on conventional next-generation whole-exome sequencing; pathogenic variants were identified through third-generation long-read sequencing or OPDM-targeted repeat-primed polymerase chain reaction(RP-PCR). Among the 43 families, OPDM2 subtype was the most common genetic subtype ( OPDM2 was the predominant subtype in this study. All subtypes share similar age of onset and muscular pathological changes, yet exhibit distinct disease progression patterns. Future multicenter prospective cohort studies are warranted to further elucidate the clinical characteristics, pathogenetic mechanisms, and prognostic differences among OPDM subtypes.
4.Treating premature ejaculation combined with anxiety and depression based on the "four-dimensional integration" of the "holism of body and spirit" theory
Yi WEI ; Zhiming HONG ; Junfeng QIU ; Zilong CHEN ; Hao KUANG ; Yangling ZENG ; Quan WANG ; Wenbin ZHOU
Journal of Beijing University of Traditional Chinese Medicine 2025;48(3):418-423
Premature ejaculation refers to a sexual dysfunction in which men experience a short intravaginal ejaculation latency and a lack of control over ejaculation during sexual activity. The onset of this condition is often accompanied by anxiety and depression, which can seriously affect the quality of the patient′s sexual life and the relationship between partners. Based on the "integration of body and spirit" theory in traditional Chinese medicine, our team believes that this condition is a comorbidity of physical and spiritual factors. We propose that the core pathogenesis of this disease lies in the "loss of form and essence, impairment of spirit, and depression of the mind, "while the primary treatment principle involves "nourishing form and regulating spirit." As a result, a new diagnosis and treatment approach of "four-dimensional integration" is summarized in this study. The disease is treated through the four dimensions of shape, body, spirit, and emotion. Traditional Chinese medicine is used to adjust the shape in cases where the physical form is damaged. For individuals with depression of heart and liver qi, the treatment focuses on soothing the heart and smoothing liver qi, and the modified Wangyou Powder and Xuanzhi Decoction is used. In cases where the heart and kidney function are compromised, the treatment involves nourishing both the heart and kidney while restoring interaction between the heart and the kidney, and modified Jihuo Yansi Elixir is used. To reduce the sensitivity of the glans penis, the patient′s body is washed with a traditional Chinese medicine formula, and a delicate fumigation formula is decocted for external washing. For those who are not in tune with their god, psychological counseling can be used to regulate their spirit and advocate "self-partner" and psychotherapy. If there are issues with intimacy, partners should focus on cooperating during foreplay, sexual intercourse, and post-coital interactions. Overall, the treatment aims to harmonize the body and spirit, addressing both physical and psychological factors through a comprehensive, multi-dimensional approach. This method provides new perspectives and ideas for the clinical diagnosis and treatment of this condition.
5.Assessment of the implementation of Radiation shielding requirements for radiotherapy room—Part 4: Radiotherapy room of 252Cf neutron afterloading (GBZ/T 201.4-2015)
Yuze YANG ; Hongfang WANG ; Haoxian YANG ; Quan WU ; Mingsheng LI ; Bala HARI ; Yongzhong MA ; Zechen FENG ; Bin BAI ; Jie GAO ; Wei ZHOU ; Weixu HUANG ; Zhengjie SHI ; Hezheng ZHAI
Chinese Journal of Radiological Health 2025;34(5):660-665
Objective To track and evaluate the implementation and application of the occupational health standard Radiation shielding requirements for radiotherapy room—Part 4: Radiotherapy room of 252Cf neutron afterloading (GBZ/T 201.4-2015) by radiation health technical service agencies, medical institutions, health supervision agencies, and radiotherapy facility design units, and to provide a scientific basis for the further revision and implementation of this standard. Methods Following the Guideline for health standards tracking evaluation (WS/T 536-2017) and the project implementation plan, relevant practitioners were randomly selected for a questionnaire survey. The survey primarily focused on their awareness, standard training, application, and revision suggestions of GBZ/T 201.4-2015. The results were summarized and analyzed. Results A total of 168 evaluation questionnaires were collected from relevant practitioners in 28 provinces. Only 31.6% of the respondents reported being “well familiar” or “ familiar” with the standard, 27.4% of the respondents believed that the standard was widely used, and 45.2% of the respondents believed that the standard could meet the needs of their work. Only 14.9% of the respondents had received relevant training on the standard, more than half of the respondents had not applied the standard within the past 10 years, and 45.2% of the respondents believed that the standard "needs to be revised". Conclusion Due to the small number of californium-252 neutron afterloading radiotherapy devices in operation on the market, the overall awareness of the standard is low, suggesting that relevant authorities need to strengthen training and publicity of the standard, and that certain sections of the standard need to be revised or merged.
6.Analysis of ethical dilemmas and coping strategies for the establishment of human milk banks in hospitals
Yao JIN ; Zhenyan FU ; Huixiang SHANG ; Lijuan WEI ; Chi HUANG ; Juan CHEN ; Mingtao QUAN
Chinese Medical Ethics 2025;38(11):1441-1446
Breast milk is the optimal natural food for newborns. However, some newborns cannot receive maternal breast milk due to reasons such as mother-infant separation or insufficient lactation. The establishment of human milk banks (HMB) can effectively address these issues, thereby increasing the breastfeeding rate among hospitalized newborns and improving their quality of survival. However, HMB in China is still in the development and improvement stage. Its implementation involves a series of ethical issues, such as informed consent, privacy protection, economic incentives, quality and safety, and fair resource distribution, which hinder HMB’s widespread promotion. Therefore, discussing the ethical dilemmas faced by the widespread establishment of HMB in China’s hospitals and analyzing coping strategies are crucial for improving the breastfeeding rate of newborns. This paper deeply analyzed and sorted out the ethical issues and challenges currently faced by HMB in China, and proposed corresponding strategies, including “ensuring informed consent and voluntary participation of both donors and recipients,” “protecting the privacy of donors and recipients,” “establishing an ethics-based moral incentive and social support system,” “strictly controlling quality and safety issues”, and “developing fair and rational policies,” aiming to provide a reference solution for addressing ethical concerns in the establishment and operation of HMB.
7.Role of cordycepin in resisting Neospora caninum infection
Zhengkai WEI ; Rongsheng HUANG ; Xi JIANG ; Dezhi ZHANG ; Quan LIU ; Qianyong LI ; Zhengtao YANG
Chinese Journal of Veterinary Science 2025;45(6):1218-1224
Bovine neosporosis,a significant disease affecting the livestock industry,is caused by the protozoan parasite Neospora caninum(N.caninum).The current absence of efficacious vaccines and therapeutics necessitates the exploration of novel interventions.Cordycepin,a bioactive nucleo-side derived from Cordyceps militaris,has garnered attention for its diverse pharmacological properties.This study endeavors to elucidate the inhibitory effects of cordycepin on N.caninum in-fection.The cytotoxicity of cordycepin to bovine macrophages was assessed using the CCK-8 assay to ascertain a non-toxic concentration range.The impact of cordycepin on the N.caninum burden within bovine macrophages was evaluated using qPCR analysis and immunofluorescence assays.Additionally,the modulation of cytokine,interferon,and defensin expression induced by N.cani-num in the presence of cordycepin was examined through qRT-PCR analysis.The results showed that cordycepin exhibited negligible cytotoxicity to bovine macrophages at concentrations ranging from 2.812 5 to 180.000 0 μmol/L,compared to the control group.At concentrations of 5.625 0,11.250 0,and 22.500 0 μmol/L,cordycepin significantly reduced the intracellular N.caninum loads and diminished the intensity of intracellular parasite fluorescence.While N.caninum infection downregulated the expression of pro-inflammatory cytokines such as TNF-α,IL-1β,and IL-6,cordycepin treatment robustly induced their expression.Furthermore,although cordycepin treatment reduced the expression levels of IFN-α,IFN-β,and IFN-γ that were upregulated by N.caninum infection,it maintained substantial expression levels.In conclusion,cordycepin demon-strates a promising resistance against N.caninum infection,suggesting its potential as a therapeu-tic agent for the treatment of bovine neosporosis.
8.Autoimmune encephalitis induced by sintilimab
Quan WANG ; Junwu ZHAO ; Wei FANG ; Jinfeng LI
Adverse Drug Reactions Journal 2025;27(5):315-317
A 61-year-old female patient was treated with sintilimab (200 mg by intravenous infusion on the first day, 21 days as a cycle) for lung adenocarcinoma and multiple lymph node metastases in the left hilum and mediastinum (10 cycles in total). Headache and dizziness in the patient occurred about 1 month after the last medication. Cerebrospinal fluid examination showed white blood cell count 14×10 6/L, total protein 799.8 mg/L, Pandy′s test (+), immunoglobulin G 70.8 mg/L, and glucose and chloride within the reference value range. The antibodies against N-methyl-D-aspartate receptor in cerebrospinal fluid and serum were all positive. The patient was diagnosed as having sintilimab-induced autoimmune encephalitis. After receiving methylprednisolone sodium succinate by intravenous infusion for 7 days, the patient′s headache and dizziness were alleviated. After that, the methylprednisolone sodium succinate was switched to oral prednisone acetate tablets. At a 2-month follow-up, no symptoms of headache or dizziness recurred in the patient.
9.Clinicopathological analysis of 10 cases of diffuse pulmonary meningotheliomatosis
Shicui QUAN ; Nian WANG ; Zhiling XIE ; Qin LIU ; Qiong WANG ; Weifeng WEI ; Naijian LI ; Ping HE ; Jin-lin WANG
Chinese Journal of Clinical and Experimental Pathology 2025;41(9):1194-1199
Purpose This study aims to investigate the clinicopathological features of diffuse pulmonary menin-gotheliomatosis(DPM).Methods The clinical data of 10 patients with DPM undergoing video-assisted thoracic sur-gery(VATS)were collected,and their clinical and pathological characteristics were analyzed using immunohistochem-istry.Results The detection rate of DPM was 1.19‰,with 90%of the patients being female.DPM predominantly occurred in the age range of 40-60 years,with an average age at diagnosis of 50.7 years.Most patients had no smok-ing history.Pathological diagnosis combined with imaging findings was the main method for diagnosing DPM.80%of the patients were prone to concurrent early-stage invasive pulmonary adenocarcinoma.Laboratory indicators,including pulmonary function,were generally normal.Chest CT showed diffuse multiple ground-glass opacity or cystic nodules in both lungs,with the number of nodules in both lungs ranging from dozens to hundreds,and the maximum diameter of the nodules was 2-6 mm.The median volume and CT value of the pulmonary nodules were 35.32 mm3 and-566 HU,respectively.Pathological features mainly included multiple meningothelial-like nodules observed under the micro-scope.Immunophenotypically,CD56,EMA,PR,and vimentin were often positive.Conclusion DPM is a rare lung disease with no obvious clinical symptoms,and is more common in middle-aged and elderly women.Diffuse multiple nodules in both lungs are its main imaging features.Most DPM patients are complicated with lung adenocarcinoma,and regular follow-up is recommended.
10.A comparative study of laparoscopic pneumovesical Cohen and laparoscopic Lich-Gregoir ureteral replantations for the treatment of primary obstructive megaloureter
Longfei CHEN ; Dian WEI ; Xingwei YANG ; Qian ZHANG ; Lihua GUO ; Lei WANG ; Ji LI ; Quan SUN ; Mingyang SHI ; Yiwei YUE ; Zhongying HAN
Chinese Journal of Applied Clinical Pediatrics 2025;40(9):675-679
Objective:To investigate the characteristics and clinical effects of laparoscopic pneumovesical Cohen and laparoscopic Lich-Gregoir ureteral replantations for the treatment of primary obstructive megaloureter (POM) in children.Methods:A randomized controlled study was conducted.The clinical data of 51 children with unilateral POM admitted to the First Affiliated Hospital of Zhengzhou University from October 2018 to October 2023 were collected.Random number table method was used in the selection of surgical methods.They were divided into the laparoscopic pneumovesical Cohen ureteral replantation group (group A, 22 cases) and the laparoscopic Lich-Gregoir ureteral replantation group (group B, 29 cases) according to the surgical method.The anterior-posterior diameter(APD), maximum ureteral diameter and differential renal function parameters on the affected side were measured by color Doppler ultrasound of the urinary system, and compared between and within the two groups before and after surgery.The operation time, blood loss and postoperative intubation time were compared between the two groups.The incidence of postoperative complications such as reflux, bladder spasm, urinary retention and urinary tract infection was recorded.The independent and paired sample t-tests were used for statistical analysis. Results:The operation time and hematuria duration of group B [(125.7±14.2) min, (1.5±0.6) d] were significantly shorter than those of group A [(142.6±14.7) min, (2.8±0.7) d] (all P<0.05). The APD, maximum ureteral diameter, and differential renal function on the affected side of group A were (21.7±7.9) mm, (11.6±3.2) mm, and (28.2±4.9)% before surgery, and (10.3±4.5) mm, (6.0±2.0) mm and (43.8±4.4)% after surgery, respectively.The APD, maximum ureteral diameter, and differential renal function on the affected side of group B were (21.1±5.6) mm, (11.3±4.6) mm, and (30.2±5.5)% before surgery, and (10.2±4.5) mm, (6.6±2.0) mm, and (42.4±5.2)% after surgery, respectively.There was no statistically significant difference in the values of APD, maximum ureteral diameter, and differential renal function before and after surgery between the two groups of children (all P>0.05). However, there were statistically significant differences in the values of APD, maximum ureteral diameter, and differential renal function before and after surgery between the same group of children (all P<0.01). No significant difference was found in intraoperative blood loss, postoperative intubation time, and postoperative complications between the two groups (all P>0.05). Conclusions:Both surgical methods are effective in the treatment of POM in children.Laparoscopic Lich-Gregoir ureteral replantation has advantages of less operation time compared with laparoscopic pneumovesical Cohen ureteral replantation.


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