1.Research progress of genes in primary open angle glaucoma
Hao HU ; Dadong JIA ; Yiyao WANG ; Liang LIANG
International Eye Science 2025;25(11):1764-1770
Primary open angle glaucoma(POAG)is the most common type of glaucoma, with common causes including variations in trabecular tissue and increased venous pressure. POAG has a certain genetic tendency, and POAG with an autosomal dominant inheritance pattern is mainly caused by single gene mutations. Studies have found that the pathogenesis of POAG may be related to key pathogenic genes(MYOC, OPTN, WDR 36), as well as mitochondrial dysfunction, oxidative stress, and epigenetic regulation. At present, the clinical treatment options for POAG mainly include enhancing trabecular meshwork function, inhibiting aqueous humor production, neuroprotection and regeneration of retinal ganglion cells, and applying gene editing technology, all of which have achieved certain results. However, there is no unified research on the relationship between the occurrence of POAG and genes, as well as treatment plans. The article explores new targets and treatment strategies for POAG gene therapy by analyzing the role of genes in the pathogenesis of POAG, aiming to provide reference for clinical treatment of this disease.
2.Advances in genetic characterization and genes of juvenile open angle glaucoma
Dadong JIA ; Feifei ZONG ; Liang LIANG
International Eye Science 2024;24(6):884-889
Juvenile open angle glaucoma(JOAG)is a subtype of primary open angle glaucoma(POAG)that severely affects the quality of life of young patients and has a high disability rate. While JOAG is commonly considered an autosomal dominant disease, it has been found to have a diverse mode of inheritance, including autosomal recessive inheritance in specific populations. The variable genetic predisposition of JOAG may be attributed to the co-regulation of several key disease-causing genes, such as MYOC, CYP1B1, and CPAMD8. Mutations in these genes are closely associated with various biological processes in ocular tissues, including cellular metabolic regulation, oxidative stress response, and abnormal induction of programmed death. Therefore, a comprehensive study of the causative genes associated with JOAG is crucial to understanding the specific genetic background of disease onset, progression, and clinical phenotype. This knowledge will provide a strong foundation for early identification and screening of high-risk populations. The objective of this review is to focus on the genetic characterization and genetic studies of JOAG. Through a systematic review of the relevant literature, we summarize the causative genes and their mutations associated with JOAG and explore their potential applications and value in advancing research in the field, aiming to provide valuable insights for the diagnosis and treatment of JOAG.
3.Establishment of a prognostic model for glioblastoma associated with cell cycle genes and study on the cell proliferation effect of RFC2
Erjing WANG ; Wei WU ; Haoyu ZHOU ; Yichang WANG ; Jianyang XIANG ; Jia WANG ; Maode WANG
Journal of Xi'an Jiaotong University(Medical Sciences) 2024;45(5):748-756
Objective To investigate the relationship of replication factor C subunit 2(RFC2)with the prognosis of glioblastoma(GBM)and cell proliferation,as well as its underlying molecular pathway in GBM development.Methods Using bioinformatics methods,cell cycle genes were screened as independent prognostic factors for GBM.Combined with clinical indicators,a risk scoring model for GBM patients was established and validated.The target gene RFC2 was analyzed with GO,KEGG,and GSEA.U87 GBM cells at logarithmic growth stage were transfected with lentivirus and divided into different groups(control,ShRFC2 # 1,and shRFC2 # 2 groups).qRT-PCR,Western blotting,Edu staining,and cloning assay were used to detect mRNA expression,protein expression,and cell proliferation.Results The expression of RFC2 was upregulated in GBM and showed an obvious upregulation trend with the increase of pathological grade of glioma.The analyses of gene function and pathway indicated that RFC2 was involved in the processes of sister chromosome segregation,chromosome segregation,organelle fission,and mitosis by promoting the transition of G1 to S phase during cell cycle.qRT-PCR and Western blotting showed that compared with the control group,the amount of mRNA and translated protein in the knockdowned groups decreased(P<0.000 1).The positive rate of Edu staining and the colony forming ability decreased(P<0.000 1,P<0.001).Conclusion RFC2 is highly expressed in glioblastoma and associated with pathological grade of glioma and poor prognosis of patients.It also promotes the cell proliferation function of glioblastoma.RFC2 may be a potential biomarker and therapeutic target for glioblastoma.
4.Implication practice of “Internet Plus” new technology in chronic diseases management in community
Zheng-chao FANG ; Chi HU ; Pei ZHANG ; Jia-juan YANG ; Guo-qiang MAO ; Ping-ping PENG
Journal of Public Health and Preventive Medicine 2023;34(1):59-61
Objective To introduce and evaluate the practice of “Internet Plus” new technology for health management of chronic diseases in community in Yichang, and to provide reference for chronic disease patients' health management in community. Methods Data of hypertensive patients were collected from the national basic public health service system, the big data intelligent sorting system for chronic disease patients in Yichang City, and the basic public health service system in urban areas in Yichang from 2016 to 2020. Data on the discovery, sorting and filing, standardized management rate and blood pressure control of urban hypertension patients were analyzed. The application effect of “Internet Plus” new technology in chronic disease community health management was evaluated. Results From 2016 to 2020, 15 934 patients with hypertension were found and their health records were established through big and intelligent data in Yichang City, accounting for 93.54% (15 934 / 17 035) of the total. The rate of standardized management in each district increased year by year, with an increase of 8.71% in 2020 compared with 2016, and the difference was statistically significant (χ2=1273.30, P<0.001). The blood pressure control rate of hypertensive patients increased year by year, with the control rate being 11.64% higher in 2020 than that in 2016, and the difference was statistically significant (χ2=867.14, P<0.001). Conclusion Data exchange and sharing among medical institutions at all levels can strengthen the health management of chronic diseases in the community. The “Internet Plus” new technology, integrating the Internet, big data, cloud computing and intelligent terminal technology, can effectively improve the detection, management and treatment rate of chronic diseases, and provide a new direction for the health management of chronic diseases.
5.A molecular brake that modulates spliceosome pausing at detained introns contributes to neurodegeneration.
Dawei MENG ; Qian ZHENG ; Xue ZHANG ; Xuejiao PIAO ; Li LUO ; Yichang JIA
Protein & Cell 2023;14(5):318-336
Emerging evidence suggests that intron-detaining transcripts (IDTs) are a nucleus-detained and polyadenylated mRNA pool for cell to quickly and effectively respond to environmental stimuli and stress. However, the underlying mechanisms of detained intron (DI) splicing are still largely unknown. Here, we suggest that post-transcriptional DI splicing is paused at the Bact state, an active spliceosome but not catalytically primed, which depends on Smad Nuclear Interacting Protein 1 (SNIP1) and RNPS1 (a serine-rich RNA binding protein) interaction. RNPS1 and Bact components preferentially dock at DIs and the RNPS1 docking is sufficient to trigger spliceosome pausing. Haploinsufficiency of Snip1 attenuates neurodegeneration and globally rescues IDT accumulation caused by a previously reported mutant U2 snRNA, a basal spliceosomal component. Snip1 conditional knockout in the cerebellum decreases DI splicing efficiency and causes neurodegeneration. Therefore, we suggest that SNIP1 and RNPS1 form a molecular brake to promote spliceosome pausing, and that its misregulation contributes to neurodegeneration.
Spliceosomes/metabolism*
;
Introns/genetics*
;
RNA Splicing
;
RNA, Messenger/genetics*
;
Cell Nucleus/metabolism*
6.Effect of Toddalia asiatica Alcohol Extract on Apoptosis of Non-small Cell Lung Cancer A549 Cells Based on Autophagy Pathway
Lan HONG ; Hao WU ; Rui TIAN ; Jia FENG ; Ziming HOU ; Mengjie TIAN ; Bonan TAO ; Xi SHEN ; Chunyu CAO ; Lin YUAN
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(20):78-85
ObjectiveTo study the effects of Toddalia asiatica alcohol extract on autophagy and apoptosis of non-small cell lung cancer A549 cells, and to explore its possible mechanism. MethodA549 cells were cultured in vitro. Cell counting kit-8 (CCK-8) was used to detect the proliferation of A549 cells, and cell survival rate was calculated to screen the drug concentration. The apoptosis in each dose group and that after the use of 3-methyladenine (3-MA), an autophagy inhibitor, were detected by flow cytometry combined with Annexin V-FITC/PI double staining. Western blot was used to detect the expression levels of apoptosis-related proteins such as B cell lymphocytoma-2(Bcl-2), Bcl-2-associated X protein(Bax), microtubule-associated protein 1 light chain 3 (LC3), cleaved cysteinyl aspartate-specific protease-3 (cleaved Caspase-3), activated poly (Adenosine diphosphate) ribonucleotide polymerase (cleaved PARP1), PARP1, activated death activator (t-Bid), Bid, and ubiquitin-binding protein p62 in each group and those after the use of 3-MA. ResultCompared with the conditions in the control group, the cell survival rate in 0.25 g·L-1 group (P<0.05), and 0.5, 1, 2, 4 g·L-1 groups (P<0.01) was decreased after 24 h intervention. Additionally, the cell survival rate was reduced in a concentration-dependent manner at 48 h and it was less than 10% at 4 g·L-1 (P<0.01). Compared with the conditions in the control group, the total apoptosis rate in 0.5 g·L-1 group was increased (P<0.05), and the apoptosis rate in 1 and 2 g·L-1 groups was also increased (P<0.01). Compared with the 2 g·L-1 group and 3-MA group, the 3-MA combined with T. asiatica alcohol extract had significantly decreased apoptosis rate (P<0.01). Compared with the conditions in the control group, elevated expression of pro-apoptotic proteins cleaved PARP1, Bax and t-Bid in 1 and 2 g·L-1 groups (P<0.05, P<0.01), and reduced expression of Bid in the 2 g·L-1 group (P<0.01) were found. Compared with the conditions in the control group, the expression of anti-apoptotic protein Bcl-2 (P<0.05, P<0.01) and the level of p62 (P<0.01) were down-regulated in 0.5, 1, 2 g·L-1 groups, while the level of LC3 Ⅱ protein was up-regulated (P<0.01), with certain concentration dependence. ConclusionT. asiatica alcohol extract could significantly inhibit the proliferation of A549 cells, which might be related to promoting autophagy and inducing apoptosis.
8.Mortality and trend of chronic non-communicable diseases in Yichang in 2015-2020
Chan WU ; Fang-fang LU ; Jia-juan YANG ; Yong-jun SU
Journal of Public Health and Preventive Medicine 2022;33(5):40-44
Objective To analyze the level, constituent ratio, and change trend of death caused by chronic non-communicable diseases (NCDs)in Yichang from 2015 to 2020. Methods The death monitoring data of residents in Yichang from 2015 to 2020 were collected from the National Mortality Surveillance System, and the crude mortality rate, standardized mortality rate and death composition ratio of Yichang residents in different seasons, genders, ages and regions were analyzed. The standardized mortality was calculated using the data of the sixth national census in 2010. The Joinpoint regression model (Joinpoint Regression Program 4.9.0.0 software) was used to analyze the trend of time variation. The annual change percentage (APC), and 95% CI were calculated. Results In 2020, the age-standardized mortality of NCDs in Yichang was 399.20 per 100 000. From 2015 to 2020, the age-standardized mortality rate of chronic diseases among residents in Yichang showed a significant downward trend (APC=-3.42%, P<0.05). The standardized mortality of NCDs decreased rapidly in urban areas (APC=-3.52%, P<0.05)and in women(APC=-4.23%, P<0.05). The standardized mortality of NCDs in most groups (except age 40-year-old and 70-year-old groups) decreased significantly (APC=-12.31%∽-3.13%, P<0.05). The standardized mortality of NCDs in the first and fourth quarters decreased year by year(APC=-3.83%, -4.02%, P<0.05). The constituent ratio of death caused by NCDs in urban areas and in female residents in Yichang declined slowly (APC=-0.39%, -0.54%, P<0.05). After the outbreak of infectious diseases in 2020, the crude mortality in the first quarter changed from an upward trend in the past 5 years(APC=3.71%, P<0.05) to no statistical significance, and the rude mortality in 2020 was lower than all other years. The constituent ratios of deaths from NCDson the way to the hospital and deaths in the elderly care service institutions changed from no statistical significance in the past to a downward trend (APC=-14.65%, P<0.05) and an upward trend (APC=8.03% , P<0.05), respectively. Conclusions From 2015 to 2020, the age-standardized mortality rate of chronic non-communicable diseases among residents in Yichang has decreased, and the proportion of urban and female deaths has declined. Epidemic situation of infectious disease has changed the time trend of mortality of NCDs in stages, and partially affected the choice of place of death. It is recommended to implement the whole population strategy for the prevention and control of NCDs, focusing on rural and male residents, and optimize the management of chronic diseases.
9.A single-center retrospective analysis of 77 traumatic arterial injuries of lower extremities.
Fei MEI ; Ke Wei WANG ; Jian Feng SUN ; Ming Kui HUANG ; Jia Wei FAN ; Yu LI ; Wen Fei GUAN
Chinese Journal of Surgery 2022;60(1):63-68
Objective: To analyze the treatment and clinical prognosis of lower extremity arterial injury caused by trauma. Methods: The clinical data of 77 patients with traumatic lower extremity arterial injury admitted to Department of Vascular Surgery,Yichang Central People's Hospital from January 2013 to June 2021 were collected retrospectively. There were 65 males and 12 females, with an average age of 47.4 years (range: 7 to 75 years). Among the 77 patients, 56 cases (72.7%) had open injury and 21 cases (27.3%) had closed injury. Iliac artery was injured in 9 cases (11.7%), common femoral artery in 7 cases (9.1%), superficial femoral artery in 1 case (1.3%), popliteal artery in 11 cases (14.3%) and inferior knee artery in 49 cases (63.6%). The treatment methods and clinical effects were analyzed. Results: One case with pelvic fracture combined the internal iliac artery injury and 1 case with multiple injuries involving the common femoral artery died of circulatory failure before surgery. Seventy-five cases received vascular-related operations, including arterial ligation in 24 cases, arterial reconstruction in 40 cases, stent graft implantation in 1 case, primary amputation in 2 cases, and arterial embolization in 8 cases. The overall mortality rate was 6.5% (5/77), all of which were closed injuries. Except for 2 cases who died before surgery, 3 cases with pelvic fracture combined the internal iliac artery injury died of multiple organ failure after internal iliac artery embolization. There were 8 cases received amputation (10.4%, 8/77), 5 cases with closed injury and 3 cases with open injury. In addition to 2 cases with primary amputation, 6 cases underwent secondary amputation due to ischemia-reperfusion injury after revascularization (4 cases with popliteal artery injury and 2 cases with subpatellar artery injury). The average followed-up time was 17 months (range: 2 months to 8 years). One patient with femoral artery injury underwent autologous great saphenous vein bypass, and lower limb artery CT angiography was re-examined 6 months after the operation, and 30% distal anastomotic stenosis was found. Ankle brachial index<0.8 was found in two patients 1 year after popliteal artery repair, but none of the patients had intermittent claudication symptoms, and no further intervention was performed. Five patients suffered delayed healing due to severe lower limb injury, fracture and skin injury. Among them, 2 cases had poor wound healing at the stump of amputation, which gradually healed 3 to 5 months after several debridements. The other 3 vascular injury combined with tibial fracture patients had delayed tibial healing after surgery, but no symptoms of vascular ischemia occurred. All the other patients recovered well and no other serious complications occurred. Conclusions: The proportion of death and disability in patients with lower limb artery injury caused by trauma is high. Active and orderly surgical repair according to the site and type of injury can reduce the mortality, save the function of the affected limb, and promote the healing of injury.
Amputation
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Female
;
Femoral Artery
;
Humans
;
Lower Extremity
;
Male
;
Middle Aged
;
Popliteal Artery/surgery*
;
Retrospective Studies
;
Treatment Outcome
;
Vascular System Injuries/surgery*
10.Study on protective effect of water extract from Sabia parviflora on liver injury in mice induced by acetaminophen.
Jian-Qiao LI ; Wen-Feng HUANG ; Hai-Bo HE ; Dong-Xiao ZHAO ; Jian-Zhong HU ; Shun-Guang LU ; Jia-Xin YE ; Kun ZOU
China Journal of Chinese Materia Medica 2020;45(6):1433-1439
The aim of this study was to observe the protective effect of water extract from Sabia parviflora on mice with acute liver injury induced by acetaminophen, and investigate its possible mechanism. Fifty-eight Kunming mice were divided into 6 groups, 8 in the normal group, 10 in the model group, 10 in the biphenyl diester group, and 10 each in the low, medium and high dose groups. After adaptive feeding for one week, the mice in normal group were intragastrically administered with an equal volume of 0.5% sodium carboxymethylcellulose sodium(CMC-Na), and the mice in other groups were intragastrically administered with corresponding drugs at 20 mL·kg~(-1) once a day. Then acetaminophen(200 mg·kg~(-1)) was administered after the above drug administration except the normal group. The behavior and signs of the experimental animals were observed every day and the samples were taken for experiments on the next day of the final administration. The liver mass and mass index were calculated. The blood was collected from the abdominal aorta and centrifuged to obtain the serum for detecting aspartate aminotransferase(AST) activity and alanine aminotransferase(ALT) activity. The liver tissue homogenate was used to detect superoxide dismutase(SOD) activity, glutathione(glutathione, r-glutamyl cysteingl+glycine, GSH) activity and malondialdehyde(MDA) content. Liver tissue was analyzed for histological analysis. The results showed that S. parviflora could alleviate the lipid peroxidation damage in the liver caused by acetaminophen, reduce the ALT and AST activities in serum, increase the levels of SOD and GSH in liver tissue, decrease the content of MDA in liver tissue, and inhibit the apoptosis. S. parviflora could also improve the live histopathological profile, protect liver cells and restore liver function. Among them, the high dose had the most significant effect and showed dose-effect relationship. This study indicated that S. parviflora had a significant protective effect on acetaminophen-induced liver injury in mice, and its mechanism may be related to its anti-oxidation effect and inhi-bitory effect on apoptosis.
Acetaminophen/toxicity*
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Alanine Transaminase/metabolism*
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Animals
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Aspartate Aminotransferases/metabolism*
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Chemical and Drug Induced Liver Injury/drug therapy*
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Liver/enzymology*
;
Malondialdehyde/analysis*
;
Mice
;
Oxidative Stress
;
Plant Extracts/pharmacology*
;
Superoxide Dismutase/metabolism*


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