1.Prediction of Potential Regulatory Pathways Involving The Notch Signaling Pathway and Its Associated Non-coding RNAs in Alzheimer’s Disease Based on Database Analysis
Meng-Lin LÜ ; Xing-Ran LIU ; Xian-Juan KOU
Progress in Biochemistry and Biophysics 2025;52(8):1942-1957
Alzheimer’s disease (AD) is a chronic, progressive, and irreversible neurodegenerative disorder that typically begins with a subtle onset and progresses slowly. Pathologically, it is characterized by two hallmark features: the extracellular accumulation of amyloid β-protein (Aβ), forming senile plaques, and the intracellular hyperphosphorylation of tau protein, resulting in neurofibrillary tangles (NFTs). These pathological changes are accompanied by substantial neuronal and synaptic loss, particularly in critical brain regions such as the cerebral cortex and hippocampus. Clinically, AD presents as a gradual decline in memory, language abilities, and spatial orientation, significantly impairing the quality of life of affected individuals. With the aging population steadily increasing in China, the incidence of AD is rising, making it a major public health concern that requires urgent attention. The growing societal and economic burden of AD underscores the pressing need to identify effective diagnostic biomarkers and develop novel therapeutic strategies. Among the various molecular signaling pathways involved in neurological disorders, the Notch signaling pathway is especially noteworthy due to its evolutionary conservation and regulatory roles in cell proliferation, differentiation, development, and apoptosis. In the central nervous system, Notch signaling is essential for neurodevelopment and synaptic plasticity and has been implicated in several neurodegenerative processes. Although some studies suggest that Notch signaling may influence AD-related pathology, its precise role in AD remains poorly understood. In particular, the interaction between Notch signaling and non-coding RNAs (ncRNAs)—key regulators of gene expression—has received limited attention. NcRNAs, including long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), are known to exert extensive regulatory functions at both transcriptional and post-transcriptional levels. Dysregulation of these molecules has been widely associated with various diseases, including cancers, cardiovascular conditions, and neurodegenerative disorders. Notably, interactions between ncRNAs and major signaling pathways such as Notch can produce widespread biological effects. While such interactions have been increasingly reported in several disease models, comprehensive studies investigating the regulatory relationship between Notch signaling and ncRNAs in the context of AD remain scarce. Given the capacity of ncRNAs to modulate signaling cascades and form complex regulatory networks, a deeper understanding of their crosstalk with the Notch pathway could provide novel insights into AD pathogenesis and reveal potential targets for diagnosis and treatment. In this study, we investigated the regulatory landscape involving the Notch signaling pathway and associated ncRNAs in AD using bioinformatics approaches. By integrating data from multiple public databases, we systematically identified significantly dysregulated Notch pathway-related genes and their interacting ncRNAs in AD. Based on this analysis, we constructed a lncRNA-miRNA-mRNA regulatory network to elucidate the potential mechanisms linking Notch signaling to ncRNA-mediated gene regulation in AD pathogenesis. Furthermore, we explored the internal relationships and molecular mechanisms within this network and assessed the feasibility and clinical relevance of these molecules as early diagnostic biomarkers and potential therapeutic targets for AD. This study aims to deepen our understanding of the molecular basis of AD and offer novel strategies for its diagnosis and treatment.
2.Observation on the Curative Effect of PENG's Tendon-Separating Tuina Therapy Combined with Lateral Needling Technique for Meridian Sinew in the Treatment of Acute Scapulohumeral Periarthritis
Juan-Juan ZHU ; Huan-Ying ZHU ; Xiao-Wen ZHANG ; Yao-Min ZHANG ; Xin-Xian LI ; Lin XIAO ; Xu-Ming PENG
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(8):2094-2099
Objective To observe the clinical effect of PENG's tendon-separating tuina therapy combined with lateral needling technique for meridian sinew in the treatment of acute scapulohumeral periarthritis(referred to as frozen shoulder),and to provide therapeutic ideas and evidence for the treatment of acute scapulohumeral periarthritis.Methods Sixty patients with acute scapulohumeral periarthritis were randomly divided into treatment group and control group,with 30 cases in each group.The control group was treated with lateral needling technique for meridian sinew,and the treatment group was treated with PENG's tendon-seperating tuina therapy combined with lateral needling technique for meridian sinew.Both groups were treated for once a day,10 times as a course of treatment,and for a total of 2 courses of treatment.The changes of pain Visual Analogue Scale(VAS)score and Constant-Murley Scale(CMS)score of shoulder joint function in the two groups were observed before treatment and after one and two course(s)of treatment.Moreover,the clinical efficacy of the two groups was evaluated.Results(1)After two courses of treatment,the total effective rate of the treatment group was 90.00%(27/30),and that of the control group was 73.30%(22/30).The overall efficacy(tested by rank sum test)and total effective rate(tested by chi-square test)of the treatment group were significantly superior to those of the control group,and the differences were statistically significant(P<0.05).(2)After one and two course(s)of treatment,the VAS scores of pain in the two groups were significantly decreased than those before treatment(P<0.05 or P<0.01);after two courses of treatment,VAS scores in the two groups were significantly lower than those after one course of treatment(P<0.05).The decrease of VAS scores in the treatment group after one and two course(s)of treatment was significantly superior to that in the control group,and the difference were statistically significant(P<0.05 or P<0.01).(3)After one and two course(s)of treatment,the CMS scores of shoulder joint function in the two groups were significantly higher than those before treatment(P<0.01);after two courses of treatment,the CMS scores in the two groups were higher than those after one course of treatment(P<0.05).The increase of CMS scores in the treatment group after one and two course(s)of treatment was significantly superior to that in the control group,and the difference was statistically significant(P<0.01).Conclusion PENG's tendon-separating tuina therapy combined with lateral needling technique for meridian sinew has a definite clinical effect in the treatment of patients with acute scapulohumeral periarthritis,which can effectively relieve the pain and discomfort of shoulder joint and improve the movement function of shoulder joint.
3.Diagnostic value of cross-primer isothermal amplification technology in tuberculosis and its related influencing factors
YU Huang ; LIU Chong ; OUYANG Fan-xian ; CHEN Zhuo-lin ; CHEN Lin ; CHEN Xiao-juan ; XU Yu-ni ; CHEN Shao-wen
China Tropical Medicine 2023;23(3):240-
Abstract: Objective To analyze the value and influencing factors of cross-primer isothermal amplification technology(CPA) in clinical screening and diagnosis of tuberculosis (TB). Methods We collected 543 inpatients in the Second Affiliated Hospital of Hainan Medical College from January 1, 2018 to December 31, 2021, including 179 patients with tuberculosis, 187 patients with pneumonia and 177 patients with other diseases. The patients' sputum, alveolar lavage fluid, pleural effusion and midstream urine were detected by CPA, smear microscopy, culture method and gene detection. The value of CPA detection in the diagnosis of tuberculosis and its influencing factors were evaluated. Statistical analysis was performed using SPSS 26.0. Results The total positive rate of CPA was 14.4% (78/543), and the positive rate of sputum samples accounted for 29.1% (39/134). Among the 78 cases of CPA positive patients, the tuberculosis group accounted for 69.2% (54/78), followed by pneumonia group 21.8% (17/78), and other diseases group accounted for 9.0% (7/78). Taking CPA test as the reference method, the "sensitivity" of smear microscopy was lower than that of genetic testing and culture, while the "specificity" was higher than that of culture and gene testing, and the "missed diagnosis rate" of smear microscopy was higher than that of genetic testing and culture. CPA test positive was related to gender, ESR and pneumonia. There is a good agreement between CPA test and culture method and gene test (Kappa>0.9), and a moderate agreement between CPA test and smear microscopy (Kappa=0.616). Conclusions Sputum specimen is the best choice for CPA detection, while the value of pleural effusion detection is relatively limited. Sputum, alveolar lavage fluid and midcourse urine can be used as clinical specimens for screening and diagnosis of "tuberculosis group and other disease group", while sputum can be used for screening and diagnosis of "tuberculosis group and pneumonia group". Gender, ESR and pneumonia are the influencing factors of CPA positive patients. Therefore, CPA testing is worthy of clinical promotion, but more clinical research data are needed.
4.Study on platelet components production in 19 provincial blood centers in China before and during the COVID-19 epidemic
Yuan ZHANG ; Yang CHEN ; Lin WANG ; Zhian ZHANG ; Ying LI ; Jincai ZHANG ; Mengzhuo LUO ; Huiling MENG ; Juan ZHOU ; Xia DU ; Changchun LU ; Ying XIE ; Li DENG ; Huijuan AN ; Sheling LIANG ; Yang ZHANG ; Yan LAN ; Yuan ZHOU ; Yan QIU
Chinese Journal of Blood Transfusion 2023;36(10):898-902
【Objective】 To study the changes of platelet components(PC), apheresis platelets (AP) and pooled platelet concentrates (PPC) production of 19 provincial blood centers before and during the COVID-19 epidemic. 【Methods】 The data related to the collection of AP and the preparation of PPC from 2016 to 2021 of 19 provincial blood centers was collected. The production of PC, AP and PPC during the four years before the epidemic (i.e. 2016-2019) and during the COVID-19 epidemic (i.e. 2020 and 2021) were calculated respectively, and the change of production was analyzed. 【Results】 The total production of PC in 19 blood centers steadily increased from 2016 to 2019, with a decrease of 4.16% in 2020 and an increase of 15.60% in 2021, exceeding the output before the COVID-19 epidemic. In 2020, the production of PC of 42.11% (8/19) blood centers decreased compared with 2019, while 94.74% (18/19) in 2021 increased compared with 2020. The changes of AP output was basically consistent with the trend of PC. The total production of PPC in 2017 and 2018 both doubled compared to the previous year, while decreased by 67.98% in 2019, increased by 30.38% in 2020 and decreased by 27.08% in 2021. 【Conclusion】 The total production of PC kept increasing steadily between 2016 and 2019, but decreased in 2020 under the COVID-19 epidemic, with some blood centers being significantly affected. In 2021, with the strong support from government and various measures by blood centers, the total production of PC increased.
5.Application of cold flowable gutta-percha in root canal obturation after apexification.
Wen Juan YAN ; Jie ZHONG ; Bi Chen LIN ; Mei Li DING ; Xiao Xian CHEN
Journal of Peking University(Health Sciences) 2022;54(1):77-82
OBJECTIVE:
To evaluate the clinical effect of root canal obturation therapy using cold flowable gutta-percha on young permanent teeth after apexification.
METHODS:
Ninety cases of young permanent teeth with pulp necrosis or periapical periodontitis treated by apexification were randomly divided into two groups. The cases in each group were divided into single root canal and multiple root canal according to the number of the root canal, and divided into classifications Ⅰ, and Ⅱ/Ⅲ/Ⅳ according to Frank's classification of root development after apexification. Cold flowable gutta-percha and warm gutta-percha obturation techniques were used for root canal obturation of the two groups. The operation time was recorded, and the patients' therapy pain degree was evaluated by visual analog scale (VAS) immediately after operation. Periapical X-ray was performed after operation to evaluate the effect of the root canal filling. The total length of the root was divided into equal three parts on the X-ray film, and three-dimensional tightness of the apical, middle, and coronal region of the root canals were statistically analyzed respectively. Clinical examinations and X-ray examination were performed 6 and 12 months after the operation to evaluate the treatment success rate.
RESULTS:
The operation time of cold flowable gutta-percha group was significantly lower than that of the control group, which were 51 s and 74 s (P < 0.05); The percentages of pain and discomfort in the two groups were 26.67% and 40.00%, respectively. There were two cases of underfilling and no overfilling in both groups. The percentages of proper filling and tight three-dimensional obturation in the experimental and control groups were 71.11% and 60.00% respectively; and the percentages of tight three-dimensional obturation in the apical third areas were 86.67% and 66.67%, the difference was significant (P < 0.05). There was no significant difference in the three-dimensional tightness between the two groups in the middle and coronal third areas. The percentages of tight three-dimensional obturation in classification Ⅰ groups were 86.67%, 83.33%, 93.33% and 76.67%, 90.00%, 96.67% in experimental and control group, respectively; The percentages of classification Ⅱ/Ⅲ/Ⅳ groups were 86.67%, 86.67%, 100.00% and 46.67%, 86.67%, 100.00%, respectively, and the difference was significant (P < 0.05). There were no apical lesions that occurred in either group during the one-year review period.
CONCLUSION
The application of cold flowable gutta-percha on young permanent teeth root canal obturation after apexification can achieve good obturation effect. The root obturation effect in the apical third area is significantly better than that of warm gutta-percha obturation techniques. Cold flowable gutta-percha can shorten the clinical treatment time and ameliorate the patients' therapy comfort.
Apexification
;
Dental Pulp Cavity
;
Gutta-Percha
;
Humans
;
Radiography
;
Root Canal Filling Materials
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Root Canal Obturation
;
Root Canal Preparation
6.Study on Application of RVD Regimen Sequential Auto-HSCT in the Treatment of Multiple Myeloma Evaluated by Propensity Score Matching.
Yang WANG ; Yan XUE ; Chun-Mei FU ; Kai FENG ; Xiao-Lin LI ; Ya-Ya DUAN ; Ci-Xian ZHANG ; Yu-Juan YANG ; Hao SHI ; Jie FU ; Yan-Na MENG ; Hui WANG
Journal of Experimental Hematology 2022;30(4):1150-1155
OBJECTIVE:
To investigate the application effect of sequential autologous hematopoietic stem cell transplantation (Auto-HSCT) with lenalidomide, bortezomib and dexamethasone (RVD) in the treatment of multiple myeloma (MM) evaluated by propensity score matching.
METHODS:
The clinical data of 49 MM patients treated with RVD scheme and followed-up for 36 months in the hospital from January 2015 to January 2021 were retrospectively analyzed and included in the control group, the clinical data of 54 MM patients who received RVD scheme and sequential Auto-HSCT scheme and completed 36 months of follow-up in the hospital during the same period were collected and included in the observation group. PSM method (1∶1, caliper value=0.01) was used to match the control group with the observation group based on baseline data and laboratory indexes, covariate equilibrium samples were obtained between groups (40 cases in each group). The clinical efficacy of patients in the two groups after 18 weeks of treatment was compared; the incidence of toxic and side effects during treatment of patients in the two groups was compared; the survival of patients in the two groups was compared after 36 months of follow-up.
RESULTS:
The ORR and DCR in the observation group were higher than those in the control group, the difference was statistically significant (P<0.05). Compared the incidence of fatigue, rash, thrombocytopenia, anemia and nausea of patients in the two groups, there was no statistical significant difference (P>0.05). After 36 months of follow-up (no loss during follow-up), 4 cases died from illness in the observation group, with a survival rate of 90% and an average survival time of 35.61 (95% CI: 35541-35.685) months, 10 cases died from illness in the control group, with a survival rate of 75% and an average survival time of 34.70 (95% CI: 34.559-34.832) months, the survival rate of the observation group was higher than that of the control group, the difference was statistically significant (P<0.05).
CONCLUSION
Sequential Auto-HSCT with RVD regimen in the treatment of MM can improve the short-term efficacy and increase the survival rate of patients, which will not increase toxic and side effects and has high safety.
Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
;
Bortezomib/therapeutic use*
;
Dexamethasone
;
Hematopoietic Stem Cell Transplantation/adverse effects*
;
Humans
;
Multiple Myeloma/drug therapy*
;
Propensity Score
;
Retrospective Studies
;
Transplantation, Autologous/methods*
;
Treatment Outcome
7.Clinical characteristics and influencing factors of children with parent-reported food allergy
Zhuoying MA ; Lin CHEN ; Ruoling XIAN ; Heping FANG ; Juan WANG ; Yan HU
Chinese Journal of Pediatrics 2022;60(7):676-681
Objective:To analyze the clinical characteristics and influencing factors of children with parent-reported food allergy (FA), thus providing empirical evidence for facilitating the effective utilization of medical history information and promoting better health education for parents.Methods:A cross-sectional study was conducted, recruiting all 596 children under 3 years of age who underwent physical examinations from July to August 2019 at the Department of Child Health Care, Children′s Hospital of Chongqing Medical University. Children were carried out with questionnaires, skin prick test, and diagnosed with FA through oral food challenge (OFC) by pediatricians. The parent-reported incidence rate, symptoms of FA, and the possible influencing factors, including demographic characteristics, family history of allergy, in-utero exposure to smoke and antibiotic use, feeding methods after birth, and residential environment were collected by questionnaire. The differences of clinical characteristics between parent-reported FA and medically diagnosed FA were analyzed by chi-square test. Logistic regression was used to analyze the factors associated with parent-reported FA.Results:A total of 596 children (316 boys and 280 girls) were recruited for this study. The incidence rate of FA by parent-report (22.0%, 131/596) was higher than that by medical diagnosis (9.9%, 59/596) (χ2=32.46, P<0.001). There were 36.6% (48/131) of children with parent-reported FA and 2.4% (11/465) of children without parent-reported FA receiving medical diagnosis of FA. Among children with parent-reported allergic symptoms, 37.5% (24/64) of those with gastrointestinal symptoms and 31.5% (23/73) of those with skin symptoms received medical diagnosis of FA, respectively. Six out of 7 children with co-presenting cutaneous and gastrointestinal symptoms were diagnosed with FA. Univariate Logistic regression analysis showed that family history of allergy ( OR=1.83 (95% CI 1.22-2.73), P=0.003) and damp living environments ( OR=2.33 (95% CI 1.13-4.79), P=0.022) were associated with higher likelihood of parent-reported FA. Conclusions:The incidence rate of parent-reported FA is higher than medically diagnosed FA. Clinicians should be highly suspicious of the possibility of FA in children with both cutaneous and gastrointestinal symptoms. Family history of allergy and damp living environments may increase the possibility of parent-reported FA.
8.Usage of Chinese Herbs in Cancer Patients in Southern China: A Survey.
Shao-Quan XIONG ; Yu CHEN ; Li-Juan WANG ; Pan-Pan LYU ; Wan LIAO ; Cui WANG ; Jian-Long KE ; Xi ZHU ; Jin-Yang WANG ; Xian-Ying SHEN ; Guang-Ping LI ; Li-Zhu LIN
Chinese journal of integrative medicine 2021;27(7):502-508
OBJECTIVE:
To study the use of Chinese medicine (CM) in cancer patients in southern China.
METHODS:
A total of 1,950 cancer patients finished questionnaires in four provinces in southern China. The survey included socio-demographic and clinical characteristics of participants, dosage forms, efficacy, and side effects.
RESULTS:
The study results showed that cancer patients with higher education (>12 years) were more likely to accept the treatment of Chinese herbs. There were 54.61% (1,065 cases) of patients chose Chinese herbs for the initial treatment and 14.46% (282 cases) chose Chinese herbs as monotherapy. Most patients (54.51%, 1,063 cases) continuously used CM for more than 6 months, and a few of them (212 cases) used CM for up to 3 years. All kinds of dosage forms of CM had been used, including CM decoction, CM patent prescription and CM injection. Concerning the efficacy in the view of patients, 40.31% (786 cases) believed that it would be effective to take Chinese herbs before they starting the anti-cancer treatment, and the percentage increased to 81.08% after 1-month CM treatment. The effect of Chinese herbs was mainly demonstrated by symptom relief and improvement of quality of life, and 8.31% (162 cases) of patients experienced control of tumor growth and decreased tumor markers. Furthermore, only 14.31% (279 cases) participants reported that they experienced side effects during CM treatment.
CONCLUSION
This large scale investigation reflects the current situation of domestic CM usage objectively and comprehensively, which might provide new ways for cancer treatment.
9.Chrysin inhibited epithelial-mesenchymal transition of type Ⅱ alveolar epithelial cell by regulating NF-κB/Twist 1 signaling pathway.
Lin-Ming LU ; Yu FU ; Qiu-Yang LI ; Xiao-Wei HE ; Juan TANG ; Xian-Wei LI
China Journal of Chinese Materia Medica 2021;46(1):146-154
This study aimed to assess whether chrysin(ChR) can inhibit epithelial-mesenchymal transition(EMT) of type Ⅱ alveolar epithelial cell and produce anti-pulmonary fibrosis effect by regulating the NF-κB/Twist 1 signaling pathway. Sixty rats were randomly divided into the control group, the bleomycin(BLC) group, BLC+ChR(50 mg·kg~(-1)) group and BLC+ChR(100 mg·kg~(-1)) group, with 15 rats in each group. The pulmonary fibrosis model was induced by intratracheal injection of BLC(7 500 U·kg~(-1)). Rats were orally administered with different doses of ChR after BLC injection for 28 days. The cells were divided into control group, TGF-β1 group(5 ng·mL~(-1)), and TGF-β1+ChR(1, 10, 100 μmol·L~(-1)) groups. The type Ⅱ alveolar epithelial cells were treated with TGF-β1 for 24 h, and then treated with TGF-β1 for 48 h in the presence or absence of different doses of ChR(1, 10 and 100 μmol·L~(-1)). The morphological changes and collagen deposition in lung tissues were analyzed by HE staining, Masson staining and immunohistochemistry. The mRNA and protein expression levels of collagen Ⅰ, E-cadherin, zonula occludens-1(ZO-1), vimentin, alpha smooth muscle actin(α-SMA), inhibitor of nuclear factor kappa B alpha(IκBα), nuclear factor-kappa B p65(NF-κB p65), phospho-NF-κB p65(p-p65) and Twist 1 in lung tissues and cells were detected by qPCR and Western blot, respectively. The animal experiment results showed that as compared with the BLC group, after administration of ChR for 28 days, bleomycin-induced pulmonary fibrosis in rats was significantly relieved, collagen Ⅰ expression in lung tissues was significantly reduced(P<0.05 or P<0.01), and EMT of alveolar epithelial cells was obviously inhibited [the expression levels of E-cadherin and ZO-1 were increased and the expression levels of vimentin and α-SMA were decreased(P<0.05 or P<0.01)], concomitantly with significantly reduced IκBα and p65 phosphorylation level in cytoplasm and decreased NF-κB p65 and Twist 1 expression in nucleus(P<0.05 or P<0.01). The cell experiment results showed that different doses of ChR(1, 10 and 100 μmol·L~(-1)) significantly reduced TGF-β1-induced collagen Ⅰ expression(P<0.05 or P<0.01), significantly inhibited EMT of type Ⅱ alveolar epithelial cells[the expression levels of E-cadherin and ZO-1 were increased and the expression levels of vimentin and α-SMA were decreased(P<0.05 or P<0.01)], and inhibited IκBα and p65 phosphorylation in cytoplasm and down-regulated NF-κB p65 and Twist 1 expression in nucleus induced by TGF-β1(P<0.05 or P<0.01). The results suggest that ChR can reverse EMT of type Ⅱ alveolar epithelial cell and alleviate pulmonary fibrosis in rats, and its mechanism may be associated with reducing IκBα phosphorylation and inhibiting NF-κB p65 phosphorylation and nuclear transfer, thus down-regulating Twist 1 expression.
Alveolar Epithelial Cells/metabolism*
;
Animals
;
Epithelial-Mesenchymal Transition
;
Flavonoids
;
NF-kappa B/metabolism*
;
Rats
;
Signal Transduction
;
Transforming Growth Factor beta1/genetics*
10.Mortality analysis of primary liver cancer in the mainland of China from 2004 to 2018
Pei ZHAO ; Dong-ming JIANG ; Lin-feng XIAN ; Jian-sheng LIN ; Dong-hong LIU ; Li-juan ZHANG ; Hong-ping YU ; Guang-wen CAO
Shanghai Journal of Preventive Medicine 2021;33(10):881-886
Objective:To determine the mortality and changing trend of primary liver cancer by using the death data of Chinese mainland from 2004 to 2018. Methods:The death certificate data was collected from China National Mortality Surveillance System from 2004 to 2018. The crude mortality rate(CMR)and age-standardized mortality rate(ASMR)of primary liver cancer in different ages, regions and living environments were calculated by Joinpoint regression model to analyze the basic situation and mortality trend. Results:From 2004 to 2018, there were 556 241 primary liver cancer deaths in China, with a CMR of 25.18/105 and an ASMR of 17.98/105. It suggested that the mortality of primary liver cancer was on a decreasing trend. During the 15 years, the ASMR of primary liver cancer was 15.56/105 in urban areas and 19.29/105 in rural areas. In urban areas, CMR was 32.89/105 in males and 12.14/105 in females, respectively; while in rural areas, CMR was 38.39/105 in males and 14.02/105 in females, respectively. The CMR in eastern, central and western urban regions was 22.25/105, 22.66/105 and 23.50/105, respectively. The CMR in the rural areas of these three regions was 27.82/105, 26.98/105 and 23.85/105, respectively. The patients were divided into four age groups: 0-19 years old, 20-39 years old, 40-59 years old, and more than 60 years old. The CMR of four groups in urban areas was 0.14/105, 2.59/105, 24.51/105 and 91.80/105. In rural areas, the CMR of four groups was 0.17/105, 4.05/105, 32.16/105 and 103.02/105. Conclusion:From 2004 to 2018, the mortality rate of liver cancer in China has a decreasing trend. However, the primary liver cancer death burden is still serious because of the large population base, severe aging population problem, and significant urban-rural and male-female disparities in China.

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