1.Analysis of Medication Patterns for Ancient Epidemic Treatment Based on Data Mining
Peipei JIN ; Tongxing WANG ; Liping CHANG ; Bin HOU ; Ningxin HAN ; Xiaoqi WANG ; Zhenhua JIA
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):287-294
ObjectiveExploring the formula rules of commonly used traditional Chinese medicines(TCMs) for epidemic treatment from the Qin and Han dynasties to the Qing dynasty through data mining, providing reference for the prevention and control of contemporary epidemics. MethodsThe articles on epidemic treatment in the electronic database of Chinese Medical Code V5.0 were systematically searched, and the contents such as source, dynasty, author, diagnosis, formula name, therapeutic method and efficacy, and composition of medicines from each article that met the inclusion criteria were extracted. Then, an Excel standardized database was established, and Python programs were used for data mining to summarize the frequency of commonly used medicines and perform hierarchical cluster analysis, Pearson correlation analysis, and association rule analysis. ResultsA total of 1 595 formulas were included, involving 558 TCMs. The efficacy of these medicines could be classified into two categories, namely, expeling pathogenic factors and reinforcing healthy Qi. According to the frequency deconstruction analysis, high-frequency medicines were mainly detoxification, Fu-organ dredging, aromatization and promoting blood circulation, followed by the medicines with the effect of treating the lungs, such as clearing the lungs and resolving phlegm, clearing heat and purging the lungs, relieving cough and asthma, and purging the lungs and relieving asthma. And the proportions of acrid-warm herbs and acrid-cold herbs varied in different periods. Hierarchical clustering and correlation analysis both suggested TCMs for expeling pathogenic factors and reinforcing healthy Qi often formed stable combinations with high association degrees. Association rule analysis showed that the core acrid-warm herb was mainly Ephedrae Herba, and the core acrid-cold herb was mainly Forsythiae Fructus, resulting in the core formulas of Maxing Shigantang and Yinqiaosan. ConclusionThroughout history, the prevention and control of epidemics have been based on the principle of "preserving healthy Qi and avoiding toxic Qi", focusing on the treatment of the causes and characteristics of epidemics through detoxification, Fu-organ dredging, and aromatization, emphasizing the use of Rhei Radix et Rhizoma and other herbs to dredge Fu-organ, eliminate toxins and pathogens, and playing the role of actively intervene with symptomatic medication. And based on the external manifestations of the body's struggle between evil and righteousness, diagnose and treatment according to syndrome differentiation was performed.
2.Analysis of Medication Patterns for Ancient Epidemic Treatment Based on Data Mining
Peipei JIN ; Tongxing WANG ; Liping CHANG ; Bin HOU ; Ningxin HAN ; Xiaoqi WANG ; Zhenhua JIA
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):287-294
ObjectiveExploring the formula rules of commonly used traditional Chinese medicines(TCMs) for epidemic treatment from the Qin and Han dynasties to the Qing dynasty through data mining, providing reference for the prevention and control of contemporary epidemics. MethodsThe articles on epidemic treatment in the electronic database of Chinese Medical Code V5.0 were systematically searched, and the contents such as source, dynasty, author, diagnosis, formula name, therapeutic method and efficacy, and composition of medicines from each article that met the inclusion criteria were extracted. Then, an Excel standardized database was established, and Python programs were used for data mining to summarize the frequency of commonly used medicines and perform hierarchical cluster analysis, Pearson correlation analysis, and association rule analysis. ResultsA total of 1 595 formulas were included, involving 558 TCMs. The efficacy of these medicines could be classified into two categories, namely, expeling pathogenic factors and reinforcing healthy Qi. According to the frequency deconstruction analysis, high-frequency medicines were mainly detoxification, Fu-organ dredging, aromatization and promoting blood circulation, followed by the medicines with the effect of treating the lungs, such as clearing the lungs and resolving phlegm, clearing heat and purging the lungs, relieving cough and asthma, and purging the lungs and relieving asthma. And the proportions of acrid-warm herbs and acrid-cold herbs varied in different periods. Hierarchical clustering and correlation analysis both suggested TCMs for expeling pathogenic factors and reinforcing healthy Qi often formed stable combinations with high association degrees. Association rule analysis showed that the core acrid-warm herb was mainly Ephedrae Herba, and the core acrid-cold herb was mainly Forsythiae Fructus, resulting in the core formulas of Maxing Shigantang and Yinqiaosan. ConclusionThroughout history, the prevention and control of epidemics have been based on the principle of "preserving healthy Qi and avoiding toxic Qi", focusing on the treatment of the causes and characteristics of epidemics through detoxification, Fu-organ dredging, and aromatization, emphasizing the use of Rhei Radix et Rhizoma and other herbs to dredge Fu-organ, eliminate toxins and pathogens, and playing the role of actively intervene with symptomatic medication. And based on the external manifestations of the body's struggle between evil and righteousness, diagnose and treatment according to syndrome differentiation was performed.
3.Analgesic effect of "Zhibian" (BL54)-toward-"Shuidao" (ST28) needling technique of acupuncture on primary dysmenorrhea based on NOD1/RIP2/NF-κB signaling pathway in the rats.
Xu JIN ; Yanlin ZHANG ; Boya CHANG ; Jia REN ; Jianheng HAO ; Yuxia CAO ; Haijun WANG ; Laixi JI
Chinese Acupuncture & Moxibustion 2025;45(2):209-216
OBJECTIVE:
To observe the effect of "Zhibian" (BL54)-toward-"Shuidao" (ST28) needling technique on the relative protein expression of the signaling pathway of nucleotide-binding oligomerization domain-containing protein 1 (NOD1)/ receptor-interacting protein 2 (RIP2)/nuclear factor kappa-B (NF-κB) and the expression of proinflammatory cytokines in the rats with primary dysmenorrhea (PD), so as to explore the underlying mechanism of this acupuncture technique for pain alleviation in PD.
METHODS:
Thirty female SD rats of SPF grade with normal estrous cycle were randomized into a blank group, a model group and an acupuncture group, 10 rats in each one. Using the intraperitoneal injection with estradiol benzoate combined with oxytocin, PD model was prepared in the model group and the acupuncture group. In the acupuncture group, during model preparation, the intervention with "Zhibian" (BL54)-toward-"Shuidao" (ST28) needling technique was delivered simultaneously, 20 min each time, once daily for consecutive 10 days. On day 11, within 30 min after the intraperitoneal injection with oxytocin, the writhing reaction (latency, frequency and score) was recorded; the morphology of uterine tissue was observed with HE staining, the contents of prostaglandin E2 (PGE2), prostaglandin F2α (PGF2α), interleukin (IL)-1β, IL-18, cyclooxygenase-2 (COX-2), and tumor necrosis factor-α(TNF-α) in the serum were detected using ELISA method; the relative protein expression of NOD1, RIP2, NF-κB p65, phosphorylation-NF-κB p65 (p-NF-κB p65) was detected in the uterine tissue using Western blot method; and the mRNA expression of NOD1, RIP2 and NF-κB p65 was detected with the quantitative real-time PCR employed.
RESULTS:
Compared with the blank group, in the model group, the writhing latency was prolonged (P<0.01), the writhing frequency and score increased (P<0.01) in the rats; the endometrial epithelial cells showed massive degeneration and necrosis, with severe endometrial edema and widespread shedding, combined with neutrophil infiltration; the serum PGE2 content was dropped (P<0.01), while those of PGF2α, IL-1β, IL-18, COX-2, and TNF-α elevated (P<0.01); the protein expression of NOD1, RIP2, NF-κB p65 and p-NF-κB p65, and the mRNA expression of NOD1, RIP2 and NF-κB p65 in uterine tissue increased (P<0.01). In comparison with the model group, in the acupuncture group, the writhing latency was prolonged (P<0.01), the writhing frequency and score were reduced (P<0.01) in the rats; there was less degeneration and necrosis of endometrial epithelial cells, with mild endometrial edema and very little neutrophil infiltration; the serum PGE2 content increased (P<0.01), while those of PGF2α, IL-1β, IL-18, COX-2, and TNF-α decreased (P<0.01); the protein expression of NOD1, RIP2, NF-κB p65 and p-NF-κB p65 and the mRNA expression of NOD1, RIP2 and NF-κB p65 in uterine tissue were dropped (P<0.05, P<0.01).
CONCLUSION
"Zhibian" (BL54)-toward-"Shuidao" (ST28) needling technique can alleviate the pain symptom of PD rats, and its action mechanism may be related to inhibiting the active expression of NOD1/RIP2/NF-κB signaling pathway in the uterine tissue, thereby reducing the inflammatory response.
Animals
;
Female
;
Rats, Sprague-Dawley
;
Rats
;
Signal Transduction
;
Dysmenorrhea/metabolism*
;
NF-kappa B/metabolism*
;
Acupuncture Points
;
Humans
;
Acupuncture Analgesia
;
Nod1 Signaling Adaptor Protein/metabolism*
;
Receptor-Interacting Protein Serine-Threonine Kinase 2/metabolism*
;
Acupuncture Therapy
4.Mechanism research of "Zhibian" (BL54)-toward-"Shuidao" (ST28) acupuncture technique for improving reproductive function in mice with asthenospermia based on the ferroptosis pathway.
Jianheng HAO ; Boya CHANG ; Qingkai JIN ; Jia REN ; Haijun WANG ; Laixi JI
Chinese Acupuncture & Moxibustion 2025;45(3):351-360
OBJECTIVE:
To investigate the underlying mechanism of "Zhibian" (BL54)-toward-"Shuidao" (ST28) acupuncture technique for improving reproductive function in mice with asthenospermia by regulating ferroptosis pathway.
METHODS:
Sixty male C57BL/6 mice were randomly divided into a blank group, a model group, an acupuncture group and a Fer-1 group, 15 mice in each one. Except the blank group, the intraperitoneal injection with cyclophosphamide (50·kg-1·d-1) was administered to establish the asthenospermia model in the mice of the rest 3 groups for 5 consecutive days. In the acupuncture group, "Zhibian" (BL54)-toward-"Shuidao" (ST28) acupuncture technique was operated in the mice, for 20 min each time; and in the Fer-1 group, Fer-1 solution (1 mg/kg) was injected intraperitoneally. The interventions of these two groups were delivered once daily and for 2 consecutive weeks. The testicular wet weight was measured and the testicular coefficient was calculated. Using sperm quality detection system, the sperm quality was detected. With ELISA used, the contents of testosterone (T), follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in the serum were detected. With HE staining, testicular and epididymal morphology was observed. Immunofluorescence was used to detect the expression of reactive oxygen species (ROS) in the testes. Biochemical assay was conducted to determine the contents of malondialdehyde (MDA), reduced glutathione (GSH), and total iron ion (TFe) in the testicular tissue. Transmission electron microscopy was used to examine mitochondrial structure of the testis, while JC-1 staining was used to assess mitochondrial membrane potential in the testicular tissue. Fluorescence quantitative PCR and Western blot analyses were employed to measure the mRNA and protein expression of solute carrier family 7 member 11 (SLC7A11), glutathione peroxidase 4 (GPX4), ferritin heavy chain 1 (FTH1), and acyl-CoA synthetase long-chain family member 4 (ACSL4) in the testicular tissue.
RESULTS:
Compared with the blank group, in the model group, the testicular wet weight and testicular coefficient decreased (P<0.01); the sperm concentration and sperm motility reduced (P<0.01), and the contents of T, FSH, and LH decreased in the serum (P<0.01); and the seminiferous tubules in the testis showed loose structure and deformed lumen, sperm cells were disorganized and the sperm numbers reduced; the tubular walls became thinner, and sperm numbers in the lumen less; the expression of ROS in testicular tissue, as well as the contents of MDA and TFe increased (P<0.01), and the content of GSH decreased (P<0.01); and the numbers of mitochondria reduced, the structure of cristae was serious damaged, and mitochondrial membrane potential level declined (P<0.01); the mRNA and protein expression of SLC7A11, GPX4, and FTH1 decreased (P<0.01), while the mRNA and protein expression of ACSL4 increased (P<0.01). In comparison with the model group, the acupuncture and Fer-1 groups showed the increase of testicular wet weight and coefficient (P<0.01), sperm concentration and motility (P<0.01), and the serum contents of T, FSH, and LH (P<0.01); and the improvements in testicular and epididymal histopathology; ROS expression and the contents of MDA and TFe decreased (P<0.01), and the content of GSH elevated (P<0.05); the mitochondrial structure and numbers were ameliorated and mitochondrial membrane potential rose (P<0.01). Besides, in comparison with the model group, the mRNA expression of SLC7A11 was higher (P<0.05, P<0.01), the mRNA and protein expression of GPX4 and FTH1 increased (P<0.01, P<0.05), and the mRNA and protein expression of ACSL4 decreased (P<0.01) in the acupuncture and the Fer-1 groups; and the protein expression of SLC7A11 was higher in the Fer-1 group (P<0.05).
CONCLUSION
"Zhibian" (BL54)-toward-"Shuidao" (ST28) acupuncture technique may improve the reproductive capacity in the mice with asthenospermia by alleviating ferroptosis-induced cellular damage and ameliorating testicular function.
Animals
;
Male
;
Ferroptosis
;
Mice
;
Acupuncture Therapy
;
Mice, Inbred C57BL
;
Asthenozoospermia/metabolism*
;
Humans
;
Acupuncture Points
;
Testis/metabolism*
;
Luteinizing Hormone/metabolism*
;
Malondialdehyde/metabolism*
;
Reproduction
;
Testosterone/metabolism*
5.Effect of "Zhibian" (BL54) toward "Shuidao" (ST28) acupuncture on gut microbiota in mice with poor ovarian response.
Boya CHANG ; Jia REN ; Xu JIN ; Jianheng HAO ; Zhen GAO ; Yuxia CAO ; Haijun WANG
Chinese Acupuncture & Moxibustion 2025;45(6):770-780
OBJECTIVE:
To explore the possible mechanism by which the "Zhibian" (BL54) toward "Shuidao" (ST28) acupuncture improves ovarian function in mice with poor ovarian response (POR) by observing its effect on gut microbiota.
METHODS:
A total of 35 SPF-grade C57BL/6 female mice were screened for normal estrous cycles using vaginal smears, and 30 mice were selected. Ten mice were assigned to the blank group, while the remaining mice were used to establish the POR model by intragastric administration of tripterygium wilfordii suspension. The successfully modeled mice were randomly divided into a model group and an acupuncture group, with 10 mice in each group. After modeling, the acupuncture group received the "Zhibian" (BL54) toward "Shuidao" (ST28) acupuncture method once daily for 20 minutes per session. Ovulation induction began the day after the intervention, and samples were collected after ovulation induction. Vaginal cytology was used to observe estrous cycle changes, and the number of oocytes obtained, ovarian wet weight, and ovarian index were recorded. Serum levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), and anti-Müllerian hormone (AMH) were detected using ELISA. HE staining was used to observe ovarian histology. Gut microbiota was analyzed using 16S rRNA gene sequencing technology. Western blot was used to detect the relative protein expression levels of Occludin and zonula occludens-1 (ZO-1) in colonic tissue. Correlation analysis was conducted among serum hormone indexes, the number of oocytes obtained, ovarian index and gut microbiota.
RESULTS:
Compared with the blank group, the model group showed a higher estrous cycle disorder rate (P<0.01), increased serum FSH and LH levels, and a higher LH/FSH ratio (P<0.01), while the number of oocytes obtained, ovarian wet weight, ovarian index, and serum E2 and AMH levels were significantly reduced (P<0.01). Compared with the model group, the acupuncture group showed a lower estrous cycle disorder rate (P<0.01), decreased serum FSH and LH levels, and a lower LH/FSH ratio (P<0.01), along with an increased number of oocytes obtained, higher ovarian wet weight, ovarian index, and elevated serum AMH and E2 levels (P<0.01, P<0.05). The blank group had a large number of well-developed primordial follicles, with abundant and closely arranged follicles at various stages. In the model group, there was a significant increase in the number of atretic follicles, a reduction in the number of follicles at various stages, and loosely arranged ovarian tissue. Compared with the blank group, the model group showed a significant decrease in the number of normal follicles (P<0.01) and an increase in the number of atretic follicles (P<0.01). The acupuncture group showed a reduction in atretic follicles and an increase in the number of follicles at various stages compared with the model group, with a significant increase in normal follicles (P<0.01) and a decrease in atretic follicles (P<0.01). Compared with the blank group, the model group exhibited reduced gut microbiota diversity and richness, with significantly lower Chao1 and Shannon indices (P<0.01), and a greater clustering distance from the blank group. The model group also showed an increase in the relative abundance of Firmicutes_D, Verrucomicrobiota, Paramuribaculum, Dubosiella, and Muribaculum (P<0.01, P<0.05), while the relative abundance of Firmicutes_A and the relative protein expression of Occludin and ZO-1 in colonic tissue were decreased (P<0.01). Compared with the model group, the acupuncture group showed improved gut microbiota diversity and richness, with increased Chao1 and Shannon indices (P<0.05), and a clustering distance closer to the blank group. The acupuncture group exhibited reduced relative abundance of Firmicutes_D, Verrucomicrobiota, and Muribaculum (P<0.05, P<0.01), while the relative abundance of Firmicutes_A and the relative protein expression of Occludin and ZO-1 were significantly increased (P<0.01, P<0.05). Correlation analysis indicated a relationship between gut microbiota and serum hormone indicators, as well as the ovarian index. Kyoto encyclopedia of genes and genomes (KEGG) pathway analysis showed that the metabolic pathways of the intersecting species were related to amino acid biosynthesis and nucleotide metabolism.
CONCLUSION
The "Zhibian" (BL54) toward "Shuidao" (ST28) acupuncture method improves ovarian function in POR mice, and its mechanism may be related to regulating gut microbiota structure and maintaining intestinal barrier homeostasis.
Animals
;
Female
;
Gastrointestinal Microbiome
;
Mice
;
Acupuncture Therapy
;
Mice, Inbred C57BL
;
Humans
;
Ovary/physiopathology*
;
Acupuncture Points
;
Follicle Stimulating Hormone/metabolism*
;
Luteinizing Hormone/metabolism*
;
Estrous Cycle
;
Anti-Mullerian Hormone/blood*
6.A phase Ⅱ clinical study of the efficacy and safety of antaitasvir phosphate combined with yiqibuvir for the treatment of chronic hepatitis C in adults
Lai WEI ; Hongxin PIAO ; Jinglan JIN ; Shufen YUAN ; Xuan AN ; Jia SHANG ; Wenhua ZHANG ; Jiabao CHANG ; Tong SUN ; Yujuan GUAN ; Bo NING ; Jing ZHU ; Wentao GUO ; Qingwei HE ; Lin LUO ; Yulei ZHUANG ; Hongming XIE ; Yingjun ZHANG
Chinese Journal of Hepatology 2024;32(7):637-642
Objective:To evaluate the efficacy and safety of antaitasvir phosphate 100 mg or 200 mg combined with yiqibuvir for 12 weeks in patients with various genotypes of chronic hepatitis C, without cirrhosis or compensated stage cirrhosis.Methods:Patients with chronic hepatitis C (without cirrhosis or compensated stage cirrhosis) were randomly assigned to the antaitasvir phosphate 100 mg+yiqibuvir 600 mg group (100 mg group) or the antaitasvir phosphate 200 mg+yiqibuvir 600 mg group (200 mg group) in a 1∶1 ratio. The drugs were continuously administered once a day for 12 weeks and observed for 24 weeks after drug withdrawal. The drug safety profile was assessed concurrently with the observation of the sustained virological response (SVR12) in the two patient groups 12 weeks following the drug cessation. The intention-to-treat concept was used to define as closely as possible a full analysis set, including all randomized cases who received the experimental drug at least once. The safety set was collected from all subjects who received the experimental drug at least once (regardless of whether they participated in the randomization group) in this study. All efficacy endpoints and safety profile data were summarized using descriptive statistics. The primary efficacy endpoint was SVR12. The primary analysis was performed on a full analysis set. The frequency and proportion of cases were calculated in the experimental drug group (antaitasvir phosphate capsules combined with yiqibuvir tablets) that achieved "HCV RNA
7.Emerging role of Jumonji domain-containing protein D3 in inflammatory diseases
Li XIANG ; Chen RU-YI ; Shi JIN-JIN ; Li CHANG-YUN ; Liu YAN-JUN ; Gao CHANG ; Gao MING-RONG ; Zhang SHUN ; Lu JIAN-FEI ; Cao JIA-FENG ; Yang GUAN-JUN ; Chen JIONG
Journal of Pharmaceutical Analysis 2024;14(9):1282-1300
Jumonji domain-containing protein D3(JMJD3)is a 2-oxoglutarate-dependent dioxygenase that specif-ically removes transcriptional repression marks di-and tri-methylated groups from lysine 27 on histone 3(H3K27me2/3).The erasure of these marks leads to the activation of some associated genes,thereby influencing various biological processes,such as development,differentiation,and immune response.However,comprehensive descriptions regarding the relationship between JMJD3 and inflammation are lacking.Here,we provide a comprehensive overview of JMJD3,including its structure,functions,and involvement in inflammatory pathways.In addition,we summarize the evidence supporting JMJD3's role in several inflammatory diseases,as well as the potential therapeutic applications of JMJD3 inhibitors.Additionally,we also discuss the challenges and opportunities associated with investigating the functions of JMJD3 and developing targeted inhibitors and propose feasible solutions to provide valuable insights into the functional exploration and discovery of potential drugs targeting JMJD3 for inflammatory diseases.
8.The Preclinical Models of Glioma Dependent on Alternative Lenthening of Telomeres (ALT) and Current Applications
Jin-Kai TONG ; Si-Xiang YAN ; Yan-Duo ZHANG ; Kai-Long HOU ; Ke ZHANG ; Hao-Nan ZHANG ; Shun CHANG ; Shu-Ting JIA
Progress in Biochemistry and Biophysics 2024;51(2):269-275
Glioma is the most common malignancy of the central nervous system, originating mainly from glial cells. Because of its highly aggressive nature, glioma has one of the highest rates of death among all types of cancer. Therefore, it is very important to develop new therapeutic approaches and drugs for glioma treatment. Instead of activate the telomerase, approximately 30% of glioma use alternative lenthening of telomere (ALT) to maintain telomere length. The mechanism of ALT development is poorly understood, however, some genetic mutations have been reported to induce the development of ALT glioma, such as ATRX, IDH1, p53, etc. The lack of ALT glioma cell lines and preclinical ALT glioma models has limited the mechanistic studies of ALT glioma. Therefore, this review listed ALT glioma cell lines that derived from primary culture or gene editing in the last decade, as well as the xenografted animal models established by ALT glioma cell lines, and discussed the role and significance these cell and animal models play in preclinical studies.
9.A multicenter retrospective cohort study on the attributable risk of patients with Acinetobacter baumannii sterile body fluid infection
Lei HE ; Dao-Bin JIANG ; Ding LIU ; Xiao-Fang ZHENG ; He-Yu QIU ; Shu-Mei WU ; Xiao-Ying WU ; Jin-Lan CUI ; Shou-Jia XIE ; Qin XIA ; Li HE ; Xi-Zhao LIU ; Chang-Hui SHU ; Rong-Qin LI ; Hong-Ying TAO ; Ze-Fen CHEN
Chinese Journal of Infection Control 2024;23(1):42-48
Objective To investigate the attributable risk(AR)of Acinetobacter baumannii(AB)infection in criti-cally ill patients.Methods A multicenter retrospective cohort study was conducted among adult patients in inten-sive care unit(ICU).Patients with AB isolated from sterile body fluid and confirmed with AB infection in each cen-ter were selected as the infected group.According to the matching criteria that patients should be from the same pe-riod,in the same ICU,as well as with similar APACHE Ⅱ score(±5 points)and primary diagnosis,patients who did not infect with AB were selected as the non-infected group in a 1:2 ratio.The AR was calculated.Results The in-hospital mortality of patients with AB infection in sterile body fluid was 33.3%,and that of non-infected group was 23.1%,with no statistically significant difference between the two groups(P=0.069).The AR was 10.2%(95%CI:-2.3%-22.8%).There is no statistically significant difference in mortality between non-infected pa-tients and infected patients from whose blood,cerebrospinal fluid and other specimen sources AB were isolated(P>0.05).After infected with AB,critically ill patients with the major diagnosis of pulmonary infection had the high-est AR.There was no statistically significant difference in mortality between patients in the infected and non-infec-ted groups(P>0.05),or between other diagnostic classifications.Conclusion The prognosis of AB infection in critically ill patients is highly overestimated,but active healthcare-associated infection control for AB in the ICU should still be carried out.
10.Study on the characteristics of lymphocyte-specfic protein-tyrosine kinase methylation in the peripheral blood circulation of patients with rheumatoid arthritis
Lingxia XU ; Cen CHANG ; Ping JIANG ; Kai WEI ; Jia′nan ZHAO ; Yixin ZHENG ; Yu SHAN ; Yiming SHI ; Hua Ye JIN ; Yi SHEN ; Shicheng GUO ; Dongyi HE ; Jia LIU
Chinese Journal of Rheumatology 2024;28(3):155-161
Objective:To analyze the methylation characteristics of the lymphocyte-specific protein-tyrosine kinase (LCK) promoter region in the peripheral blood circulation of rheumatoid arthritis (RA) patients and its correlation with clinical indicators.Methods:Targeted methylation sequencing was used to compare the methylation levels of 7 CpG sites in the LCK promoter region in the peripheral blood of RA patients with healthy controls (HC) and osteoarthritis (OA) patients. Correlation analysis and ROC curve construction were performed with clinical information.Results:Non-parametric tests revealed that compared with HC [0.53(0.50, 0.57)] and OA patients [0.59(0.54, 0.62), H=47.17, P<0.001], RA patients [0.63(0.59, 0.68)] exhibited an overall increase in methylation levels. Simultaneously, when compared with the HC group [0.38(0.35, 0.41), 0.59(0.55, 0.63), 0.60(0.55, 0.64), 0.59(0.55, 0.63), 0.58(0.53, 0.62), 0.45(0.43, 0.49), 0.57(0.54, 0.61)], the RA group [0.46(0.42, 0.49), 0.70(0.65, 0.75), 0.70(0.66, 0.76), 0.70(0.65, 0.75), 0.69(0.64, 0.74), 0.55(0.51, 0.59), 0.68(0.63, 0.73)] showed a significant elevation in methylation levels at CpG sites cg05350315_60, cg05350315_80, cg05350315_95, cg05350315_101, cg05350315_104, cg05350315_128, and cg05350315_142, with statistically significant differences ( Z=-5.63, -5.89, -5.91, -5.89, -5.98, -5.95, -5.95, all P<0.001). Compared with the OA group [0.65(0.59, 0.69), 0.65(0.60, 0.69), 0.64(0.58, 0.68), 0.50(0.45, 0.54), 0.63(0.58, 0.67)], the RA group [0.70(0.66, 0.76), 0.70(0.65, 0.75), 0.69(0.64, 0.74), 0.55(0.51, 0.59), 0.68(0.63, 0.73)] exhibited a significant increase in methylation levels at CpG sites cg05350315_95, cg05350315_101, cg05350315_104, cg05350315_128, and cg05350315_142, with statistically significant differences ( Z=-3.56, -3.52, -3.60, -3.67, -3.62; P=0.036, 0.042, 0.031, 0.030, 0.030). Furthermore, Pearson correlation coefficient analysis revealed a positive correlation between the overall methylation level in this region and C-reactive protein (CRP) ( r=0.19, P=0.004) and erythrocyte sedimentation rate ( r=0.14, P=0.035). The overall methylation level of the LCK promoter region in the CRP (low) group [0.63 (0.58, 0.68)] was higher than that in the CRP (high) group [0.65(0.61, 0.70)], with statistically significant differences ( Z=2.60, P=0.009). Finally, by constru-cting a ROC curve, the discriminatory efficacy of peripheral blood LCK promoter region methylation levels for identifying RA patients, especially seronegative RA patients, from HC and OA groups was validated, with an AUC value of 0.78 (95% CI: 0.63, 0.93). Conclusion:This study provides insights into the methylation status and methylation haplotype patterns of the LCK promoter region in the peripheral blood of RA patients. The overall methylation level in this region is positively correlated with the level of inflammation and can be used to differentiate seronegative RA patients from the HC and OA patients.

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