1.Finite element analysis of optimization of femoral prosthesis implantation position in unicompartmental knee arthroplasty in osteoporotic patients
Mengfei LIU ; Gang CHEN ; Yihan SHI ; Lin ZENG ; Kan JIANG ; Yilihamujiang·Wusiman
Chinese Journal of Tissue Engineering Research 2025;29(3):464-470
BACKGROUND:The reasonable implantation range of femoral prosthesis in unicompartmental knee arthroplasty in patients with osteoporosis has not been investigated,and previous studies have often been based on unicompartmental knee arthroplasty models in normal bone,with fewer mechanical studies in models with non-normal bone.Complications after unicompartmental knee arthroplasty have been shown to be highly associated with osteoporosis. OBJECTIVE:To analyze the biomechanical effects of the coronal inclination of the Sled fixed platform femoral prosthesis on unicompartmental knee arthroplasty in patients with osteoporosis and to find the correlation between osteoporosis and mid-and long-term complications after unicompartmental knee arthroplasty. METHODS:Based on the digital imaging technology to obtain the data of the knee joint and prosthesis,a normal bone knee model is then created by using specialized software such as Mimics and Geomagic studio.Based on a validated normal bone knee model,an osteoporotic knee model was created by changing the material parameters.Totally 14 unicompartmental knee arthroplasty finite element models were created using Sled fixed platform femoral prosthesis:standard position(0°),varus and valgus angles:3°,6°,9° in the normal bone and osteoporosis groups.Stress changes on the surface of polyethylene liner,cancellous bone under tibial prosthesis,and cortical bone were calculated and analyzed in all unicompartmental knee arthroplasty models. RESULTS AND CONCLUSION:(1)In the osteoporotic models,the high stress values of the polyethylene liner surface and the cancellous bone under the tibial prosthesis increased with the increase of the tilt angle of the femoral prosthesis,and the high stress values of the cortical bone surface under the tibial prosthesis increased with the increase of the prosthesis valgus angles and decreased with the increase of the varus angles.(2)For the polyethylene liner surface as well as the subcortical bone surface of the tibial prosthesis,the high stress values of the models for each inclination angle in the osteoporosis group were greater than those of the corresponding models in the normal bone group.For the surface of the cancellous bone under the tibial prosthesis,the high stress values of the tilt angle models of the osteoporosis groups were smaller than those of the normal bone groups.(3)Osteoporosis may cause biomechanical abnormalities in the internal structures of the knee after unicondylar replacement,increasing the potential risk of postoperative aseptic loosening of the prosthesis and periprosthetic fractures.Varus and valgus of the femoral prosthesis in the coronal plane should be avoided as much as possible when performing medial unicompartmental knee arthroplasty with a Sled fixation platform in osteoporotic knees.
2.Expression and Clinical Significance of Nucleoporin 93 in Patients with Neuroblastoma
Minting LIANG ; Yang YANG ; Xiaojun LIU ; Huiya LIANG ; Hanyi ZHANG ; Yihan SUN ; Xiuyu SHI ; Xia YANG
Journal of Sun Yat-sen University(Medical Sciences) 2025;46(3):420-430
ObjectiveTo screen key genes associated with neuroblastoma (NB) diagnosis and prognosis using the Gene Expression Omnibus (GEO) database, and to investigate the expression and clinical significance of nucleoporin 93 (NUP93) in NB tissues. MethodsNB gene chip data (GSE73517, GSE49710, GSE19274) were retrieved from the GEO database. Differentially expressed genes (DEGs) commonly upregulated in high-risk groups were screened. The R2 database was then used to assess the prognostic value of DEGs that were commonly upregulated in the MYCN amplification group. Finally, NUP93 expression levels in the tissues from 60 NB, 25 ganglioneuroblastoma (GNB), and 26 ganglioneuroma (GN) cases were measured by immunohistochemistry . ResultsTwenty-five DEGs were identified as commonly upregulated in high-risk groups. Among these, 10 genes (SIVA1, NUP93, STIP1, LSM4, RAI14, MYOZ3, KNTC1, TNFRSF10B, TACC3 and CEP152) showed significantly higher expression in MYCN-amplified subgroups (P<0.05). Survival analysis revealed that high NUP93 expression was associated with shorter overall survival (HR = 4.0, 95% CI: 3.0,5.3, P = 1.80 × 10⁻³⁴). Immunohistochemistry results revealed that NUP93 expression in NB tissues was significantly higher than in GNB and GN tissues (P<0.001). NUP93 expression was positively correlated with high mitosis-karyorrhexis index (MKI; P=0.040), poor differentiation (P<0.001), and MYCN expression (rs = 0.793, P <0.001). ConclusionsHigh expression of NUP93 is associated with high MKI and poor differentiation, and predicts unfavorable prognosis in patients with NB, suggesting it may promote tumor progression by regulating MYCN. NUP93 has the potential to be a novel diagnostic biomarker and therapeutic target for NB.
3.Key Information Research and Ancient and Modern Application Analysis of Classic Prescription Houpo Sanwutang
Wenli SHI ; Qing TANG ; Huimin CHEN ; Jialei CAO ; Bingqi WEI ; Lan LIU ; Keke LIU ; Yun ZHANG ; Yujie CHANG ; Yihan LI ; Jingwen LI ; Bingxiang MA ; Lvyuan LIANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(20):214-221
Houpo Sanwutang, included in the Catalogue of Ancient Classical Prescriptions (Second Batch), was first recorded in the Synopsis of Golden Chamber written by ZHANG Zhongjing from the Eastern Han dynasty and was modified by successive generations of medical experts. A total of 37 pieces of effective data involving 37 ancient Chinese medical books were retrieved from different databases. Through literature mining, statistical analysis, and data processing, combined with modern articles, this study employed bibliometrics to investigate the historical origin, composition, decoction methods, clinical application, and other key information. The results showed that the medicinal origin of Houpo Sanwutang was clearly documented in classic books. Based on the conversion of the measurements from the Han Dynasty, it is recommended that 110.4 g Magnolia Officinalis Cortex, 55.2 g Rhei Radix et Rhizoma, and 72 g Aurantii Fructus Immaturus should be taken. Magnolia Officinalis Cortex and Aurantii Fructus Immaturus should be decocted with 2 400 mL water first, and 1 000 mL should be taken from the decocted liquid. Following this, Rhei Radix et Rhizoma should be added for further decoction, and then 600 mL should be taken from the decocted liquid. A single dose of administration is 200 mL, and the medication can be stopped when patients restore smooth bowel movement. Houpo Sanwutang has the effect of moving Qi, relieving stuffiness and fullness, removing food stagnation, and regulating bowels. It can be used in treating abdominal distending pain, guarding, constipation, and other diseases with the pathogenesis of stagnated heat and stagnated Qi in the stomach. The above results provide reference for the future development and research of Houpo Sanwutang.
4.Analysis of global research trends and hotspots on the correlation between hyperuricemia and cardiovascular disease
Yihan SHI ; Lin ZENG ; SUBATIJIANG-Paerhati ; Lei ZHANG ; Rongxin SUN
China Modern Doctor 2024;62(32):29-33
Objective To analyze the latest research hotspots and development trends of hyperuricemia and cardiovascular diseases in the past 20 years by using CiteSpace software and VOSviewer software.Methods The Web of Science database was searched from January 2005 to July 2024 for the literature on hyperuricemia and cardiovascular diseases,and the keywords,authors,institutions,and countries were analyzed by CiteSpace software and VOSviewer software,and the network cooperation map was constructed.Results A total of 2344 articles written by 5844 authors from 75 countries and 1713 institutions were analyzed.The journal Nutrition Metabolism and Cardiovascular Diseases had published the most papers in this field,with a total of 36 articles.Scholar Johnson has published 19 papers in this field,ranking first.A total of 2678 keywords were included,and the keywords that identified the research frontier and continued through 2024 were"asymptomatic hyperuricemia""xanthine oxidoreductase""adults".Conclusion The literature published in the field of hyperuricemia and cardiovascular disease correlation from 2005 to 2024,are comprehensively summarize,and sort out the development trends and research hotspots in this field in the past 20 years,through bibliometrics and visual analysis,which is expected to provide a reference direction for researchers in this field for subsequent research.
5.The Data Model Design and Intelligent Applications of Health Portrait
Chun FAN ; Jie MA ; Anqi XU ; Yihan XU ; Jinlong SHI
Journal of Medical Informatics 2024;45(6):13-18
Purpose/Significance To explore the data model design and intelligent applications of health portrait.Method/Process The paper analyzes the current situation and problems of health portrait applications,standardizes the data collection,legislation and gov-ernance of health portrait,systematically establishes the data model of health portrait,and explores potential application scenarios for health portrait.Result/Conclusion The data model of health portrait is designed to enhance the comprehensiveness and pertinence of health portrait.The data model management system is established to improve the standardized management efficiency of the model.Two application scenarios of health portrait are summarized,namely"health management and assessment"and"accurate diagnosis and per-sonalized diagnosis and treatment",which help to improve the quality and effect of medical treatment,and meet individual health needs.
6.Quality Evaluation of Atractylodis Macrocephalae Rhizoma in Different Production Methods Based on Traditional Traits
Jinxiu QIAN ; Yihan WANG ; Yapeng WANG ; Guoliang YU ; Qiuxiang PAN ; Jiawei SHI ; Meiping CHEN ; Yangqing LIU ; Lun LU ; Yanmeng LIU ; Tiegui NAN ; Liping KANG ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(1):43-52
ObjectiveBased on the experience of traditional quality evaluation, the quality of Atractylodis Macrocephalae Rhizoma(AMR) with different production methods such as direct seeding, transplanting after seedling raising, topping and non-topping, and difference in growth years was compared. MethodVernier caliper was used to measure the trait data of AMR in different production methods. Paraffin sections of AMR with different production methods were made by saffron solid green staining, and the microstructure was observed. The contents of water-soluble and alcohol-soluble extracts in AMR with different production methods were determined according to the 2020 edition of Chinese Pharmacopoeia. The content of water-soluble total polysaccharides in AMR with different production methods was detected by sulfuric acid-anthrone method. Fiber analyzer was used to detect the content of fiber components in AMR with different production methods. The contents of monosaccharides, oligosaccharides and some secondary metabolites in AMR with different production methods were detected by ultra performance liquid chromatography(UPLC), and the differences of chemical components were compared by multivariate statistical analysis methods such as principal component analysis(PCA) and partial least squares-discriminant analysis(PLS-DA). ResultIn terms of traits, the 3-year-old AMR with direct seeding and without topping was close to the high-quality AMR with "phoenix-head and crane-neck, strong sweetness and clear aroma" recorded in ancient materia medica, followed by the 3-year-old AMR with topping after transplanting, while the 2-year-old AMR with topping after transplanting with high market circulation rate was generally fat and strong with mild odor. In the microscopic aspect, the arrangement of xylem vessels and fiber bundles in the 3-year-old samples formed two obvious rings. Compared with the 2-year-old samples cultivated in Bozhou and Zhejiang, the 3-year-old samples without topping after transplanting had more wood fibers. In terms of chemical composition, the contents of 70% ethanol extract, fructose, glucose, sucrose, 1-kestose, atractylenolide Ⅰ, chlorogenic acid, neochlorogenic acid, cryptochlorogenic acid and other components in 3-year-old AMR with direct seeding and without topping were significantly higher than those in the other three samples(P<0.05). The contents of cellulose, 70% ethanol extract, sucrose, atractylenolide Ⅰ, atractylone and other components in 3-year-old AMR with topping after transplanting were significantly higher than those in the 2-year-old AMR with high market circulation rate(P<0.05), while the contents of water-soluble extract and water-soluble total polysaccharides in 2-year-old samples with topping after transplanting were significantly higher than those in the 3-year-old AMR with topping after transplanting, direct seeding and without topping(P<0.05). ConclusionUnder the current mainstream production mode, too much manual intervention makes AMR heavily enriched in polysaccharides and increased the yield, but the accumulation of sweet substances, fragrant substances and fiber substances is insufficient, which affects its quality. The current quality standard of AMR has some shortcomings in guiding the high quality production of it, it is suggested to revise the quality standard of AMR, supplement the quantitative analysis of secondary metabolites, and strengthen the production of imitation wild AMR.
7.Policy implementation on daily study time standard among secondary school students in Shandong Province
SHI Yihan, XU Xin, LIU Kaiqi, LIU Zhaolu, TU Ying, LIANG Qian, WANG Fei, LEI Suwen, LI Jing
Chinese Journal of School Health 2024;45(10):1409-1413
Objective:
To understand the implementation of daily study time standard among secondary school students in Shandong Province, so as to provide scientific basis for the formulation and implementation of relevant policies.
Methods:
From January to May 2023, a multi stage random sampling method was used to select 8 725 middle school students in Shandong Province. A survey questionnaire was designed based on the Requirements for Daily Study Time of Primary and Secondary School Students(GB/T 17223-2012), to investigate indicators such as students daily learning schedule, sleep and physical activity time, break time and scheduling requirements.
Results:
The compliance rates for daily study time in junior and senior high school students in Shandong Province were 29.2% and 23.6%, respectively, with a statistically significant difference ( χ 2=33.63, P <0.01). Compliance rates for sleep duration, physical activity and recess time, morning and afternoon class hours, and class duration were 19.3%, 26.2%, 30.5%, 73.2% and 16.2%. Class duration compliance was relatively high, with rates of 96.7% in junior high and 94.4% in senior high school students. There was a statistically significant difference in compliance rates for extended class breaks between different educational stages ( χ 2= 81.78, P <0.01), with rates of 84.6% in junior high and 83.4% in senior high school students. As students progressed through their educational stages, compliance rates for physical activities, class breaks, consecutive classes, and total weekly class hours showed a decreasing trend, with rates of 31.8% and 18.3%, 35.7% and 23.1%, 60.5% and 29.6%, 55.2% and 35.1% in junior and senior high school students, respectively.
Conclusions
The revised standard of Requirements for Daily Study Time of Primary and Secondary School Students(GB/T 17223-2012) optimizes the daily study and life schedule of middle school students to a certain extent. However, daily study time for middle school students in Shandong Province exceeds standard. Relevant departments need to enhance their ability to implement standards and strengthen the supervision of policy standards implementation.
8.Analysis of the Nature,Flavor and Combination Characteristics of the Two-herb Compound Formulas inTreatise on Cold Damage and Miscellaneous Diseases (《伤寒杂病论》)
Ying ZHANG ; Yihan ZHAO ; Qinghua SHANG ; Ruina BAI ; Wenhui DUAN ; Jianpeng DU ; Zhuye GAO ; Zhonghui JIANG ; Dazhuo SHI
Journal of Traditional Chinese Medicine 2024;65(22):2378-2382
Based on the natures and flavors of herbal medicinals recorded in Shen Nong's Classic of the Materia Medica (《神农本草经》); Miscellaneous Records of Famous Physicians (《名医别录》), this study analyzed the characte-ristics of the natures, flavors and combination of medicinals of the two-herb compound formulas in Treatise on Cold Damage and Miscellaneous Diseases (《伤寒杂病论》).Finally, 31 compound formulas were included, and it was found that the nature and flavor of the herbs in these two-herb compound formulas are closely related to the functions of the compound formulas, such as the common pairing of the acrid and the sweet herbs to warm yang and transform qi, the acrid and the bitter herbs in pairs to regulate and harmonize cold and heat, the sweet and the bitter in pairs to remove dampness and clear heat, the acrid and the acrid in pairs to arrest vomiting and direct qi downward, and the sour and the sweet in pairs to slow the urgent and relieve pain. Regardless of the deficiency or excess nature of the disease, the corresponding two-herb compound formulas often aim to reinforce healthy qi while eliminating pathogenic factors, with some formulas showcasing a unique correspondence between the disease pattern and the symptoms addressed.
9.A Review of Classic Formula Tingli Dazao Xiefeitang: Key Information Exploration and Ancient and Modern Applications
Yamin KONG ; Lyuyuan LIANG ; Jialei CAO ; Xuan WANG ; Liyuan CHEN ; Bingqi WEI ; Yujie CHANG ; Yihan LI ; Leying XI ; Bingxiang MA ; Wenli SHI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(24):208-214
Tingli Dazao Xiefeitang is a classic formula for treating lung abscesses and thoracic fluid retention, recognized throughout history and included in the Catalogue of Ancient Classic Formulas (Second Batch). This article employs bibliometric methods to investigate and analyze the source, origin, and key information of Tingli Dazao Xiefeitang, providing a theoretical basis for the development and application of this renowned formula. The results show that Tingli Dazao Xiefeitang first appears in Synopsis of the Golden Chamber (Jin Kui Yao Lue), where three clinical applications are recorded. The original text clearly states that this formula is used to treat lung abscesses and thoracic fluid retention, with symptoms such as inability to lie down due to wheezing, chest and rib fullness, facial edema, inability to rest due to thoracic fluid retention, and cough inversion. This aligns with findings from ancient application research. In later generations, the methods proposed by ZHANG Zhongjing were predominantly used for medication and formulation. Modern applications of Tingli Dazao Xiefeitang focus primarily on the respiratory system, with pleural effusion being the most common condition. For the preparation and decoction, a single dose of 5 g of Descurainiae Semen Lepidii Semen (dried and mature seeds of Lepidium apetalum) processed as stir-fried seeds and 36 g of Jujubae Fructus (dried and mature fruit of Ziziphus jujuba) prepared as raw materials were recommended. Then 600 mL of water was added and Jujubae Fructus was first boiled until the volume reduced to 400 mL. After filtering out the residue, the supernatant was retained and mixed with stir-fried Descurainiae Semen Lepidii Semen, followed by boiling to 200 mL, which should be consumed all at once. This research provides a theoretical basis for the development and application of this formula.
10.Progress in the diagnosis and treatment of Congenital insensitivity to pain with anhidrosis
Jiajie GU ; Zekai LIU ; Yihan SHI ; Jiaxiang GU
Chinese Journal of Medical Genetics 2024;41(9):1139-1143
Congenital insensitivity to pain with anhidrosis (CIPA)is a rare disease which mainly affects infants, children and adolescents. As an autosomal recessive disorder, CIPA is also known as familial autonomic dysfunction type 2. The diagnosis of CIPA mainly relies on clinical observation and genetic testing. Currently there is a lack of effective treatment, and it is mainly treated by cooling, anti-inflammatory and strengthened guardianization. This article has reviewed the literature and summarized the research on CIPA and progress made in its diagnosis and treatment, with an aim to improve the understanding of this disorder.


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