1.Safety analysis of Yttrium-90 resin microsphere selective internal radiation therapy on malignant liver tumors
Jia CAI ; Shiwei TANG ; Rongli LI ; Mingxin KONG ; Hongyan DING ; Xiaofeng YUAN ; Yuying HU ; Ruimei LIU ; Xiaoyan ZHU ; Wenjun LI ; Haibin ZHANG ; Guanwu WANG
Chinese Journal of Clinical Medicine 2025;32(1):24-29
Objective To explore the safety of Yttrium-90 resin microsphere selective internal radiation therapy (90Y-SIRT) on malignant liver tumors. Methods A retrospective analysis was conducted on 64 patients with malignant liver tumors who underwent 90Y-SIRT from February 2023 to November 2024 at Weifang People’s Hospital. The clinical characteristics of the patients and the occurrence of adverse reactions after treatment were analyzed to assess the safety of 90Y-SIRT. Results Among the 64 patients, there were 52 males (81.25%) and 12 females (18.75%); the average age was (56.29±11.08) years. Seven patients (10.94%) had tumors with maximum diameter of less than 5 cm, 38 patients (59.38%) had tumors with maximum diameter of 5-10 cm, and 19 patients (29.68%) had tumors with maximum diameter of greater than 10 cm. There were 47 cases (73.44%) of solitary lesions and 17 cases (26.56%) of multiple lesions; 53 cases (82.81%) were primary liver cancers and 11 cases (17.19%) were metastatic liver cancers. Of the 64 patients, 63 successfully completed the Technetium-99m macroaggregated albumin (99mTc-MAA) perfusion test and received the 90Y-SIRT; one patient received 90Y-SIRT after the second 99mTc-MAA perfusion test due to a work error. The most common adverse reactions included grade 1 alanine aminotransferase (ALT) elevation in 26 cases (40.62%) and grade 2 in 2 cases (9.37%), grade 1 aspartate aminotransferase (AST) elevation in 27 cases (42.18%) and grade 2 in 7 cases (10.93%); grade 1 nausea in 17 cases (26.56%) and grade 2 in 6 cases (9.37%); grade 1 abdominal pain in 12 cases (18.75%), grade 2 in 5 cases (7.81%), and grade 3 in 1 case (1.56%); grade 1 vomiting in 11 cases (17.18%), grade 2 in 5 cases (7.81%), and grade 3 in 1 case (1.56%). Conclusion The adverse reactions of 90Y-SIRT for treating malignant liver tumors are mild, indicating good safety.
2.Progress and technical points of transoral endoscopic thyroidectomy vestibular approach
Peng CHEN ; Jianing SHI ; Wenjun JIA ; Jing FANG
Journal of Surgery Concepts & Practice 2025;30(1):17-20
Transoral endoscopic thyroidectomy vestibular approach (TOETVA) is a novel endoscopic thyroid surgery method. TOETVA can completely dissect the lymph nodes in the central area and Ⅳ area. TOETVA has both advantages of beauty and curative effect. Based on the clinical experience of this technique, the author reviewed the development, indications, complications and surgical skills of TOETVA in recent years, and looked forward to the development trend of this technique.
3.Two-sample Mendelian randomization analysis of the causal relationship between human immune cell phenotypes and keloids
Wenjun GAN ; Jingru WANG ; Jia HE ; Xiaodong CHEN
Chinese Journal of Burns 2025;41(1):84-93
Objective:To explore the causal relationship between human immune cell phenotypes and keloids.Methods:This study was based on a two-sample Mendelian randomization (MR) analysis. Human immune cell phenotypes were considered as the exposure factors, and keloid was the outcome. Data on immune cell phenotypes (3 757 samples) and keloids (668 samples) were obtained from the genome-wide association study database. Using single nucleotide polymorphisms (SNPs) significantly associated with immune cell phenotypes as instrumental variables with the influence of weak instrumental variables being excluded, two-sample MR analysis was employed to evaluate the causal relationship between 731 human immune cell phenotypes and keloids. The inverse variance weighted (IVW) method was used to infer causal relationships, and the MR-Egger, weighted median, and weighted mode methods were used for validation. For SNPs of immune cell phenotypes meeting the hypothesis, the Cochran Q test was used to assess heterogeneity, and the MR-Egger regression and MR-PRESSO outlier tests were used to evaluate horizontal pleiotropy.Results:A total of 18 204 SNPs meeting the significant threshold ( P<1×10??) were selected as instrumental variables for 731 immune cell phenotypes, and none of these SNPs were weak instrumental variables (with F values all >10). According to the IVW method, 21 immune cell phenotypes were identified with potential causal relationships to keloids, among which the CD62L - monocyte absolute count, CD19 on naive-mature B cell, CD19 on IgD + B cell, CD27 on plasma blast-plasma cell, CD86 on CD62L + myeloid dendritic cell, CD45 on natural killer T cell, CD25 on CD39 + CD4 + regulatory T cell, CD45 on monocytic myeloid-derived suppressor cells, CD8 on effector memory CD8 + T cell, and CD45RA on resting CD4 + regulatory T cell showed significant positive correlations with keloids (with odds ratios of 1.12, 1.09, 1.08, 1.21, 1.13, 1.12, 1.17, 1.11, 1.10, and 1.07, respectively, 95% confidence intervals of 1.03-1.23, 1.02-1.16, 1.01-1.15, 1.06-1.38, 1.02-1.25, 1.01-1.24, 1.03-1.33, 1.00-1.23, 1.00-1.20, and 1.01-1.13, respectively, P<0.05), while the activated and secreted CD4 + regulatory T cell absolute count, CD25 on unswitched memory B cell, plasmacytoid dendritic cell absolute count, CD14 on monocytic myeloid-derived suppressor cells, CD8 on natural killer T cell, CD20 on IgD + CD38 + B cell, CD11c + CD62L - monocyte absolute count, CD66b ++ myeloid cell absolute count, CD11c on granulocytes, CD14 on CD14 + CD16 + monocyte, and CD3 on central memory CD8 + T cell showed significant negative correlations with keloids (with odds ratios of 0.95, 0.93, 0.93, 0.93, 0.91, 0.89, 0.89, 0.88, 0.87, 0.86, and 0.85, respectively, 95% confidence intervals of 0.90-1.00, 0.87-0.99, 0.88-0.99, 0.87-0.99, 0.84-1.00, 0.81-0.98, 0.81-0.98, 0.79-0.99, 0.78-0.96, 0.75-0.99, and 0.74-0.96, respectively, P<0.05). MR-Egger method confirmed the potential causal relationship existing respectively between CD25 on CD39 + CD4 + regulatory T cell, CD86 on CD62L + myeloid dendritic cell, CD19 on IgD + B cell, CD45RA on resting CD4 + regulatory T cell, CD3 on central memory CD8 + T cell and keloids (with odds ratios of 1.32, 1.22, 1.11, 1.09, and 0.73, respectively, 95% confidence intervals of 1.03-1.70, 1.04-1.44, 1.02-1.21, 1.01-1.19, and 0.55-0.95, respectively, P<0.05). The weighted median method confirmed the potential causal relationship existing respectively between CD45 on natural killer T cell, activated and secreted CD4 + regulatory T cells absolute count, CD20 on IgD + CD38 + B cell, CD66b ++ myeloid cell absolute count and keloids (with odds ratios of 1.15, 0.93, 0.87, and 0.83, respectively, 95% confidence intervals of 1.01-1.31, 0.86-1.00, 0.77-0.98, and 0.71-0.96, respectively, P<0.05). Among them, the potential causal relationship between CD20 on IgD + CD38 + B cell and keloids was further verified by the weighted mode method (with odds ratio of 0.86, 95% confidence interval of 0.77-0.97, P<0.05). According to the aforementioned IVW method analysis results, the SNPs associated with the 21 immune cell phenotypes that had a significant causal relationship with keloids showed no significant heterogeneity ( P>0.05) or significant horizontal pleiotropy ( P>0.05). Conclusions:From a genetic perspective, the potential causal relationships between 21 human immune cell phenotypes and keloids have been revealed, of which 10 immune cell phenotypes may be risk factors for keloids, while 11 immune cell phenotypes may act as protective factors for keloids.
4.Interpretation of the Screening Tool of Older Persons' Prescriptions and Screening Tool to Alert to Right Treatment
Xuedong JIA ; Wenjun JIAO ; Mingyue ZHANG ; Tingting LI ; Sufang CHEN ; Shuzhang DU
Chinese Journal of Geriatrics 2025;44(2):122-129
The Screening Tool of Older Persons' Prescriptions(STOPP)and the Screening Tool to Alert to Right Treatment(START)play a crucial role in identifying potentially inappropriate prescriptions among the elderly.As the aging population continues to grow, there is an urgent need for effective tools to address the challenges of multimorbidity and polypharmacy in elderly patients in China.However, the development of rational medication screening tools has significantly lagged, and there is currently a lack of sensitive and effective instruments in China.This article analyzes the newly added entries in the third edition of STOPP/START, aiming to provide a reference for managing multiple medication regimens and for the development of relevant tools for elderly patients in China.
5.Prevalence and associated risk factors of carotid plaque and artery stenosis in China: a population-based study.
Qingjia ZENG ; Chongyang ZHANG ; Xinyao LIU ; Shengmin YANG ; Muyuan MA ; Jia TANG ; Tianlu YIN ; Shanshan ZHAO ; Wenjun TU ; Hongpu HU
Frontiers of Medicine 2025;19(1):64-78
Stroke is a critical health issue in China, and carotid artery stenosis and plaque play key roles in its prevalence. Despite the acknowledged significance of this condition, detailed information regarding the prevalence of carotid artery stenosis and plaque across the Chinese population has been scarce. This study analyzed data from the China Stroke High-risk Population Screening and Intervention Program for 2020-2021, focusing on 194 878 Chinese adults aged 40 years and above. It assessed the prevalence of carotid artery stenosis and plaque and identified their associated risk factors. Results revealed a standardized prevalence of 0.40% for carotid artery stenosis and 36.27% for carotid plaque. Notably, the highest rates of stenosis were observed in north and south China at 0.61%, while southwestern China exhibited the highest plaque prevalence at 43.17%. Key risk factors included older age, male gender, hypertension, diabetes, stroke, smoking, and atrial fibrillation. This study highlights significant geographical and demographic disparities in the prevalence of these conditions, underlining the urgent need for targeted interventions and policy reforms. These measures are essential for reducing the incidence of stroke and improving patient outcomes, addressing this significant health challenge in China.
Humans
;
China/epidemiology*
;
Male
;
Female
;
Prevalence
;
Middle Aged
;
Carotid Stenosis/epidemiology*
;
Risk Factors
;
Aged
;
Adult
;
Plaque, Atherosclerotic/epidemiology*
;
Stroke/epidemiology*
;
Aged, 80 and over
6.Using Xiaoqinglong Decoction to Treat Acute Exacerbation of Chronic Obstructive Pulmonary Disease Presenting External Cold and Internal Fluid Retention Syndrome:Observation of the Clinical Efficacy
Wenjun TANG ; Zhu ZENG ; Pengcheng ZHOU ; Guobing JIA ; Kairui MENG ; Chengshi HE
Journal of Sichuan University (Medical Sciences) 2025;56(3):665-671
Objective To study the clinical efficacy of Xiaoqinglong decoction combined with the conventional protocol of western medicine in the treatment of acute exacerbation of chronic obstructive pulmonary disease(AECOPD)presenting with exterior cold and interior fluid retention syndrome,and to evaluate its effect on the short-term prognosis of patients.Methods A total of 124 AECOPD patients presenting exterior cold and interior fluid retention syndrome were divided into an observation group(62 cases)and a control group(62 cases)using a random number table.Patients in the control and observation groups were managed with conventional western medicine treatment protocols consisting of bronchodilators,glucocorticoids,and antibacterial drugs.In addition,patients in the observation group were also given Xiaoqinglong decoction at one dose per day for 10 days in succession.The primary outcome indicators included the total effective treatment rate and the main traditional Chinese medicine(TCM)syndrome scores before treatment and after 10 days of Xiaoqinglong decoction treatment.The secondary outcome indicators included infection and inflammatory indicators,including white blood cell count(WBC),procalcitonin(PCT),interleukin(IL)-6,C-reactive protein(CRP),and arterial blood gas indicators,including arterial partial pressure of oxygen(PaO2),arterial partial pressure of carbon dioxide(PaCO2),and arterial oxygen saturation(SaO2),measured before treatment and after 10 days of treatment,adverse drug reactions during treatment,and the severity of dyspnea assessed by the modified Medical Research Council(mMRC)dyspnea scale at the 1-month follow-up after discharge.Results Compared with baseline findings for the same group before treatment,the main TCM syndrome scores and the total score were reduced in both groups after treatment(P<0.05).After treatment,compared with those of the control group,the syndrome scores for cough,aversion to cold,nasal congestion,and runny nose,and the total score in the observation group were lower(P<0.05).The total effective treatment rate in the observation group(94.91%)was significantly higher than that in the control group(82.76%)(P<0.05).After 10 days of treatment,the levels of PaCO2,WBC,PCT,IL-6,and CRP in both groups were significantly reduced compared with those before treatment(P<0.05).After treatment,the levels of PaCO2,WBC,PCT,IL-6,and CRP in the observation group were lower than those in the control group(P<0.05).Compared with those before treatment,PaO2 and SaO2 levels in both groups increased significantly after 10 days of treatment(P<0.05).During the course of treatment,no severe adverse reactions,such as liver or kidney dysfunction,occurred in either group.No adverse reactions associated with Xiaoqinglong decoction were observed.No patients in either group reached mMRC grade 4 at the 1-month follow-up after discharge.The mMRC grades in both groups declined at the 1-month follow-up after discharge compared to those before treatment(P<0.05).At the 1-month follow-up after discharge,the mMRC grades of patients in the observation group were lower than those of the control group(P<0.05).Conclusion Xiaoqinglong decoction combined with the conventional protocol of western medicine deminstrates good clinical efficacy in treating patients with AECOPD of exterior cold and interior fluid retention syndrome,and can effectively improve the TCM syndromes,relieve the symptoms of dyspnea,reduce the inflammatory response,promote the resolution of infection,delay disease progression,improve short-term prognosis,and shows better safety.
7.SPTLC1 gene variation induced hereditary sensory and autonomic neuropathy type 1A: a pedigree analysis and literature review
Bingbing JIA ; Xiaona FU ; Lin GE ; Wenjun WANG ; Lu WANG ; Junlan LYU ; Hui XIONG
Chinese Journal of Applied Clinical Pediatrics 2025;40(5):372-377
Objective:To summarize the clinical manifestations, diagnosis and treatment of a family with hereditary sensory and autonomic neuropathy (HSAN) caused by the SPTLC1 gene variation and to review the literature. Methods:Case summary.The clinical manifestations, neuroelectrophysiology, genetic examination, treatment and follow-up of a family with autosomal dominant HSAN diagnosed at the Department of Neurology, Beijing Children′s Hospital in March 2024 were summarized.At the same time, related English and Chinese literatures were searched from CNKI, Wanfang and PubMed databases from their establishment to July 2024, with " serine palmitoyltransferase long-chain base subunits 1", " hereditary sensory and autonomic neuropathy", " SPTLC1" and " HSAN1" taken as key words.Results:The proband was a 11-year-and-2-month-old boy, who developed limited bending at the age of 7.The patient had ankle pain and knee bending during walking, and limited movement.He could neither jump on one foot nor bend down to pick up things from the ground, but there was no obvious sensory and autonomic nervous function abnormalities.His parents had no abnormal clinical manifestations.Neuroelectrophysiology showed peripheral nerve damage, and family whole exon sequencing revealed a maternal heterozygous missense variation of the SPTLC1 gene c.1015G>A, p.A339T(maternal origin, reported).Further maternal neuroelectrophysiology examination and sphingomyelin analysis confirmed the diagnosis of HSAN1A.The proband wore orthopedic insoles, and the proband and his mother took L-serine orally for 8 months.During the follow up, the proband reported slight improvement in muscle strength, and no adverse reactions were found.Two Chinese and thirteen English case reports on autosomal dominant HSAN caused by the SPTLC1 gene variation were retrieved.Twenty cases had complete clinical data.Therefore, a total of 22 cases, including the above-mentioned two patients, were analyzed.Except for patients whose age at diagnosis is unknown and who are deceased, the age at diagnosis ranged from 7 to 93 years.The 66.7%(14/21) cases were childhood-onset.The first clinical symptoms were mainly gait abnormalities, easy falls, sensory disorders and ulcers.Foot deformity, and autonomic neuropathy were detected in 53.3% (8/15), and 31.6% (6/19) cases, respectively, 15.8% (3/19) of the cases had amputation.Only 1 case was treated with L-serine, who showed partial relief of clinical symptoms, but electromyography was not significantly improved.Fifteen cases received neuroelectrophysiological testing, and 78.6%(11/14) of the patients showed sensory and motor neurogenic injuries.All the gene variations reported previously were missense mutations, and the high frequency variation was p. C133T/W. Conclusions:This study is helpful to improve the understanding of the clinical characteristics of HSAN1A caused by the SPTLC1 gene.Oral L-serine supplementation may benefit patients and gene detection promotes diagnosis confirmation and early treatment.
8.SPTLC1 gene variation induced hereditary sensory and autonomic neuropathy type 1A: a pedigree analysis and literature review
Bingbing JIA ; Xiaona FU ; Lin GE ; Wenjun WANG ; Lu WANG ; Junlan LYU ; Hui XIONG
Chinese Journal of Applied Clinical Pediatrics 2025;40(5):372-377
Objective:To summarize the clinical manifestations, diagnosis and treatment of a family with hereditary sensory and autonomic neuropathy (HSAN) caused by the SPTLC1 gene variation and to review the literature. Methods:Case summary.The clinical manifestations, neuroelectrophysiology, genetic examination, treatment and follow-up of a family with autosomal dominant HSAN diagnosed at the Department of Neurology, Beijing Children′s Hospital in March 2024 were summarized.At the same time, related English and Chinese literatures were searched from CNKI, Wanfang and PubMed databases from their establishment to July 2024, with " serine palmitoyltransferase long-chain base subunits 1", " hereditary sensory and autonomic neuropathy", " SPTLC1" and " HSAN1" taken as key words.Results:The proband was a 11-year-and-2-month-old boy, who developed limited bending at the age of 7.The patient had ankle pain and knee bending during walking, and limited movement.He could neither jump on one foot nor bend down to pick up things from the ground, but there was no obvious sensory and autonomic nervous function abnormalities.His parents had no abnormal clinical manifestations.Neuroelectrophysiology showed peripheral nerve damage, and family whole exon sequencing revealed a maternal heterozygous missense variation of the SPTLC1 gene c.1015G>A, p.A339T(maternal origin, reported).Further maternal neuroelectrophysiology examination and sphingomyelin analysis confirmed the diagnosis of HSAN1A.The proband wore orthopedic insoles, and the proband and his mother took L-serine orally for 8 months.During the follow up, the proband reported slight improvement in muscle strength, and no adverse reactions were found.Two Chinese and thirteen English case reports on autosomal dominant HSAN caused by the SPTLC1 gene variation were retrieved.Twenty cases had complete clinical data.Therefore, a total of 22 cases, including the above-mentioned two patients, were analyzed.Except for patients whose age at diagnosis is unknown and who are deceased, the age at diagnosis ranged from 7 to 93 years.The 66.7%(14/21) cases were childhood-onset.The first clinical symptoms were mainly gait abnormalities, easy falls, sensory disorders and ulcers.Foot deformity, and autonomic neuropathy were detected in 53.3% (8/15), and 31.6% (6/19) cases, respectively, 15.8% (3/19) of the cases had amputation.Only 1 case was treated with L-serine, who showed partial relief of clinical symptoms, but electromyography was not significantly improved.Fifteen cases received neuroelectrophysiological testing, and 78.6%(11/14) of the patients showed sensory and motor neurogenic injuries.All the gene variations reported previously were missense mutations, and the high frequency variation was p. C133T/W. Conclusions:This study is helpful to improve the understanding of the clinical characteristics of HSAN1A caused by the SPTLC1 gene.Oral L-serine supplementation may benefit patients and gene detection promotes diagnosis confirmation and early treatment.
9.Interpretation of the Screening Tool of Older Persons' Prescriptions and Screening Tool to Alert to Right Treatment
Xuedong JIA ; Wenjun JIAO ; Mingyue ZHANG ; Tingting LI ; Sufang CHEN ; Shuzhang DU
Chinese Journal of Geriatrics 2025;44(2):122-129
The Screening Tool of Older Persons' Prescriptions(STOPP)and the Screening Tool to Alert to Right Treatment(START)play a crucial role in identifying potentially inappropriate prescriptions among the elderly.As the aging population continues to grow, there is an urgent need for effective tools to address the challenges of multimorbidity and polypharmacy in elderly patients in China.However, the development of rational medication screening tools has significantly lagged, and there is currently a lack of sensitive and effective instruments in China.This article analyzes the newly added entries in the third edition of STOPP/START, aiming to provide a reference for managing multiple medication regimens and for the development of relevant tools for elderly patients in China.
10.Two-sample Mendelian randomization analysis of the causal relationship between human immune cell phenotypes and keloids
Wenjun GAN ; Jingru WANG ; Jia HE ; Xiaodong CHEN
Chinese Journal of Burns 2025;41(1):84-93
Objective:To explore the causal relationship between human immune cell phenotypes and keloids.Methods:This study was based on a two-sample Mendelian randomization (MR) analysis. Human immune cell phenotypes were considered as the exposure factors, and keloid was the outcome. Data on immune cell phenotypes (3 757 samples) and keloids (668 samples) were obtained from the genome-wide association study database. Using single nucleotide polymorphisms (SNPs) significantly associated with immune cell phenotypes as instrumental variables with the influence of weak instrumental variables being excluded, two-sample MR analysis was employed to evaluate the causal relationship between 731 human immune cell phenotypes and keloids. The inverse variance weighted (IVW) method was used to infer causal relationships, and the MR-Egger, weighted median, and weighted mode methods were used for validation. For SNPs of immune cell phenotypes meeting the hypothesis, the Cochran Q test was used to assess heterogeneity, and the MR-Egger regression and MR-PRESSO outlier tests were used to evaluate horizontal pleiotropy.Results:A total of 18 204 SNPs meeting the significant threshold ( P<1×10??) were selected as instrumental variables for 731 immune cell phenotypes, and none of these SNPs were weak instrumental variables (with F values all >10). According to the IVW method, 21 immune cell phenotypes were identified with potential causal relationships to keloids, among which the CD62L - monocyte absolute count, CD19 on naive-mature B cell, CD19 on IgD + B cell, CD27 on plasma blast-plasma cell, CD86 on CD62L + myeloid dendritic cell, CD45 on natural killer T cell, CD25 on CD39 + CD4 + regulatory T cell, CD45 on monocytic myeloid-derived suppressor cells, CD8 on effector memory CD8 + T cell, and CD45RA on resting CD4 + regulatory T cell showed significant positive correlations with keloids (with odds ratios of 1.12, 1.09, 1.08, 1.21, 1.13, 1.12, 1.17, 1.11, 1.10, and 1.07, respectively, 95% confidence intervals of 1.03-1.23, 1.02-1.16, 1.01-1.15, 1.06-1.38, 1.02-1.25, 1.01-1.24, 1.03-1.33, 1.00-1.23, 1.00-1.20, and 1.01-1.13, respectively, P<0.05), while the activated and secreted CD4 + regulatory T cell absolute count, CD25 on unswitched memory B cell, plasmacytoid dendritic cell absolute count, CD14 on monocytic myeloid-derived suppressor cells, CD8 on natural killer T cell, CD20 on IgD + CD38 + B cell, CD11c + CD62L - monocyte absolute count, CD66b ++ myeloid cell absolute count, CD11c on granulocytes, CD14 on CD14 + CD16 + monocyte, and CD3 on central memory CD8 + T cell showed significant negative correlations with keloids (with odds ratios of 0.95, 0.93, 0.93, 0.93, 0.91, 0.89, 0.89, 0.88, 0.87, 0.86, and 0.85, respectively, 95% confidence intervals of 0.90-1.00, 0.87-0.99, 0.88-0.99, 0.87-0.99, 0.84-1.00, 0.81-0.98, 0.81-0.98, 0.79-0.99, 0.78-0.96, 0.75-0.99, and 0.74-0.96, respectively, P<0.05). MR-Egger method confirmed the potential causal relationship existing respectively between CD25 on CD39 + CD4 + regulatory T cell, CD86 on CD62L + myeloid dendritic cell, CD19 on IgD + B cell, CD45RA on resting CD4 + regulatory T cell, CD3 on central memory CD8 + T cell and keloids (with odds ratios of 1.32, 1.22, 1.11, 1.09, and 0.73, respectively, 95% confidence intervals of 1.03-1.70, 1.04-1.44, 1.02-1.21, 1.01-1.19, and 0.55-0.95, respectively, P<0.05). The weighted median method confirmed the potential causal relationship existing respectively between CD45 on natural killer T cell, activated and secreted CD4 + regulatory T cells absolute count, CD20 on IgD + CD38 + B cell, CD66b ++ myeloid cell absolute count and keloids (with odds ratios of 1.15, 0.93, 0.87, and 0.83, respectively, 95% confidence intervals of 1.01-1.31, 0.86-1.00, 0.77-0.98, and 0.71-0.96, respectively, P<0.05). Among them, the potential causal relationship between CD20 on IgD + CD38 + B cell and keloids was further verified by the weighted mode method (with odds ratio of 0.86, 95% confidence interval of 0.77-0.97, P<0.05). According to the aforementioned IVW method analysis results, the SNPs associated with the 21 immune cell phenotypes that had a significant causal relationship with keloids showed no significant heterogeneity ( P>0.05) or significant horizontal pleiotropy ( P>0.05). Conclusions:From a genetic perspective, the potential causal relationships between 21 human immune cell phenotypes and keloids have been revealed, of which 10 immune cell phenotypes may be risk factors for keloids, while 11 immune cell phenotypes may act as protective factors for keloids.

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