1.Optimization of extraction process for Shenxiong Huanglian Jiedu Granules based on AHP-CRITIC hybrid weighting method, grey correlation analysis, and BP-ANN.
Zi-An LI ; De-Wen LIU ; Xin-Jian LI ; Bing-Yu WU ; Qun LAN ; Meng-Jia GUO ; Jia-Hui SUN ; Nan-Yang LIU ; Hui PEI ; Hao LI ; Hong YI ; Jin-Yu WANG ; Liang-Mian CHEN
China Journal of Chinese Materia Medica 2025;50(10):2674-2683
By employing the analytic hierarchy process(AHP), the CRITIC method(a weight determination method based on indicator correlations), and the AHP-CRITIC hybrid weighting method, the weight coefficients of evaluation indicators were determined, followed by a comprehensive score comparison. The grey correlation analysis was then performed to analyze the results calculated using the hybrid weighting method. Subsequently, a backpropagation-artificial neural network(BP-ANN) model was constructed to predict the extraction process parameters and optimize the extraction process for Shenxiong Huanglian Jiedu Granules(SHJG). In the extraction process, an L_9(3~4) orthogonal experiment was designed to optimize three factors at three levels, including extraction frequency, water addition amount, and extraction time. The evaluation indicators included geniposide, berberine, ginsenoside Rg_1 + Re, ginsenoside Rb_1, ferulic acid, and extract yield. Finally, the optimal extraction results obtained by the orthogonal experiment, grey correlation analysis, and BP-ANN method were compared, and validation experiments were conducted. The results showed that the optimal extraction process involved two rounds of aqueous extraction, each lasting one hour; the first extraction used ten times the amount of added water, while the second extraction used eight times the amount. In the validation experiments, the average content of each indicator component was higher than the average content obtained in the orthogonal experiment, with a higher comprehensive score. The optimized extraction process parameters were reliable and stable, making them suitable for subsequent preparation process research.
Drugs, Chinese Herbal/analysis*
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Neural Networks, Computer
2.Regulatory effects of Dangua Humai Oral Liquid on gut microbiota and mucosal barrier in mice with glucolipid metabolism disorder.
Zhuang HAN ; Lin-Xi JIN ; Zhi-Ta WANG ; Liu-Qing YANG ; Liang LI ; Yi RUAN ; Qi-Wei CHEN ; Shu-Hong YAO ; Xian-Pei HENG
China Journal of Chinese Materia Medica 2025;50(15):4315-4324
The gut microbiota regulates intestinal nutrient absorption, participates in modulating host glucolipid metabolism, and contributes to ameliorating glucolipid metabolism disorder. Dysbiosis of the gut microbiota can compromise the integrity of the intestinal mucosal barrier, induce inflammatory responses, and exacerbate insulin resistance and abnormal lipid metabolism in the host. Dangua Humai Oral Liquid, a hospital-developed formulation for regulating glucolipid metabolism, has been granted a national invention patent and demonstrates significant clinical efficacy. This study aimed to investigate the effects of Dangua Humai Oral Liquid on gut microbiota and the intestinal mucosal barrier in a mouse model with glucolipid metabolism disorder. A glucolipid metabolism disorder model was established by feeding mice a high-glucose and high-fat diet. The mice were divided into a normal group, a model group, and a treatment group, with eight mice in each group. The treatment group received a daily gavage of Dangua Humai Oral Liquid(20 g·kg~(-1)), while the normal group and model group were given an equivalent volume of sterile water. After 15 weeks of intervention, glucolipid metabolism, intestinal mucosal barrier function, and inflammatory responses were evaluated. Metagenomics and untargeted metabolomics were employed to analyze changes in gut microbiota and associated metabolic pathways. Significant differences were observed between the indicators of the normal group and the model group. Compared with the model group, the treatment group exhibited marked improvements in glucolipid metabolism disorder, alleviated pathological damage in the liver and small intestine tissue, elevated expression of recombinant claudin 1(CLDN1), occluding(OCLN), and zonula occludens 1(ZO-1) in the small intestine tissue, and reduced serum levels of inflammatory factors lipopolysaccharides(LPS), lipopolysaccharide-binding protein(LBP), interleukin-6(IL-6), and tumor necrosis factor-α(TNF-α). At the phylum level, the relative abundance of Bacteroidota decreased, while that of Firmicutes increased. Lipid-related metabolic pathways were significantly altered. In conclusion, based on the successful establishment of the mouse model of glucolipid metabolism disorder, this study confirmed that Dangua Humai Oral Liquid effectively modulates gut microbiota and mucosal barrier function, reduces serum inflammatory factor levels, and regulates lipid-related metabolic pathways, thereby ameliorating glucolipid metabolism disorder.
Animals
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Gastrointestinal Microbiome/drug effects*
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Mice
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Intestinal Mucosa/microbiology*
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Male
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Drugs, Chinese Herbal/administration & dosage*
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Mice, Inbred C57BL
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Humans
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Glycolipids/metabolism*
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Lipid Metabolism/drug effects*
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Administration, Oral
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Disease Models, Animal
3.Correlation between bone mass loss and incidence of knee osteoarthritis in the elderly community-based population.
Chen-Jie XIA ; Jin LI ; Xiang LI ; Ke ZHOU ; Liang FANG ; Hong-Ting JIN ; Pei-Jian TONG
China Journal of Orthopaedics and Traumatology 2025;38(4):358-363
OBJECTIVE:
To explore the epidemiological characteristics of knee osteoarthritis (KOA) among the elderly in the community, and its correlation with bone mass loss.
METHODS:
A cross-sectional study was conducted on elderly community population over 50 year old from 12 community health service centers in Zhejiang province. Their gender, age, body mass index (BMI), T value and KOA diagnosis were collected using face to face questionnaire survey. Univariate regression was used to analyze the influence of age, gender, BMI and bone loss on KOA. Logistic multivariate regression model was used to analyze the independent effect of bone mass loss on KOA.
RESULTS:
Among 4 173 subjects in this study, 1 710 of them were had a KOA. The prevalence rate was 40.9%. The mean age, the proportion of females and the mean BMI in KOA patients were (65.5±3.8) years old, 67.7%(1 158/1 710) and(24.59±1.28) kg·m-2, respectively, which were significantly higher than (58.5±3.2) years old, 51.3%(1 263/2 463), and (23.48±1.25) kg·m-2 in non-KOA subjects (P<0.001). In the population aged from 60 to 69 years old, the influence of osteopenia and osteoporosis on the prevalence of KOA was[OR=1.21, 95%CI(1.00, 1.46), P=0.053 2], [OR=1.42, 95%CI(1.14, 1.78), P=0.002 2]. The influence of male and female osteoporosis on the prevalence of KOA was [OR=1.52, 95%CI(1.16, 1.99), P=0.002 7] and [OR=1.87, 95%CI(1.51, 2.32), P<0.000 1], respectively. In the population of 24 kg·m-2≤BMI<28 kg·m-2, the influence of osteopenia and osteoporosis on the prevalence of KOA was [OR=1.47, 95%CI(1.21, 1.80), P=0.000 1], [OR=2.69, 95%CI(2.11, 3.42), P<0.000 1], respectively. After controlling the confounding factors of age, gender and BMI, compared with people with normal bone mass, the effect of osteopenia on the prevalence of KOA was [OR=1.34, 95%CI(1.08, 1.67), P=0.009 2], and the effect of osteoporosis on the prevalence of KOA was [OR=1.38, 95%CI(1.06, 1.79), P=0.017 9].
CONCLUSION
Elderly overweight women are more likely to develop KOA. Bone mass loss is an independent risk factor for KOA, which will significantly increase the prevalence of KOA in people overweight or aged 60 to 69 years old.
Humans
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Female
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Male
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Aged
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Osteoarthritis, Knee/etiology*
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Middle Aged
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Cross-Sectional Studies
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Bone Density
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Aged, 80 and over
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Incidence
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Body Mass Index
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China/epidemiology*
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Osteoporosis/epidemiology*
4.Value of different calculation methods for weight growth velocity in predicting long-term neurological and physical development outcomes in preterm infants.
Pei-Hong JI ; Xuan SUN ; Jin-Zhi GAO ; Ling CHEN
Chinese Journal of Contemporary Pediatrics 2025;27(2):165-170
OBJECTIVES:
To investigate the value of weight growth velocity, calculated using the Patel exponential model and the Z-score change method, in predicting the neurological and physical development outcomes of preterm infants with a gestational age of <30 weeks in the long term.
METHODS:
A retrospective study was conducted involving preterm infants with a gestational age of <30 weeks who were hospitalized and treated in the Department of Neonatology at Tongji Hospital, Huazhong University of Science and Technology, from January 2017 to June 2022, and were followed up at the outpatient service more than 18 months of age. The preterm infants were divided into high and low rate groups based on the two calculation methods, and the two methods were compared regarding their predictive value for neurological and physical development outcomes in the long term.
RESULTS:
The average age of the last follow-up was (23.0±3.6) months. For neurological development, according to the Patel exponential model, the low rate group exhibited a significantly higher abnormal rate in the fine motor domain compared to the high rate group (P<0.05). Using the Z-score change method, the low rate group had significantly higher abnormal rates in both gross motor and fine motor domains, and significantly lower developmental quotients for gross motor, fine motor, and adaptive behavior domains compared to the high rate group (P<0.05). For physical development, there were no significant differences in body length, body weight, head circumference, or the incidence rate of growth restriction between the low rate and high rate groups identified by either method (P>0.05).
CONCLUSIONS
Weight growth velocity calculated using the Z-score change method is more effective in predicting long-term neurological outcomes in preterm infants, while weight growth velocity derived from both methods shows no significant association with long-term physical development outcomes.
Humans
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Infant, Premature/growth & development*
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Retrospective Studies
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Infant, Newborn
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Child Development
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Male
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Female
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Body Weight
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Infant
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Nervous System/growth & development*
5.Efficacy and Safety of Venetoclax in Combination with Hypomethylating Agents for the Treatment of High-Risk Myelodysplastic Syndromes.
Yang XU ; Jian ZHANG ; Zhi-Hong LIN ; Jun CHEN ; Li-Min LIU ; Hui-Ying QIU ; De-Pei WU
Journal of Experimental Hematology 2025;33(1):168-174
OBJECTIVE:
To investigate the clinical efficacy and safety of venetoclax (VEN) in combination with hypomethylating agent (HMA) in the treatment of patients with high-risk myelodysplastic syndromes (MDS).
METHODS:
A total of 30 patients with high-risk MDS who received the combination of VEN and HMA from March 2019 to November 2022 were included. The overall response rate (ORR), modified overall response rate (mORR), overall survival (OS), progression-free survival (PFS), and adverse events of all included patients were evaluated.
RESULTS:
Among the 30 high-risk MDS patients treated with VEN combined with HMA regimen, 24 cases achieved complete response (CR)/ marrow complete response (mCR), 2 cases achieved partial response (PR), the ORR was 24/30, the median OS was 28.1 months, and the median PFS was 28.1 months. In addition, patients who achieved complete remission / marrow complete remission after treatment had a significantly longer OS than those who did not. Moreover, 12 patients were treated with allogeneic hematopoietic stem cell transplantation (allo-HSCT). There were grade 3 or higher hematologic adverse events including thrombocytopenia (14 cases), neutropenia (14 cases), febrile neutropenia (10 cases) and anemia (7 cases) as well as gastrointestinal adverse events of any grade, such as vomiting (7 cases), diarrhea (5 cases), and constipation (4 cases).
CONCLUSION
VEN in combination with HMA is an effective and safe treatment option in patients with high-risk MDS. This regimen combined with allo-HSCT can improve the prognosis of these patients. Continuous attention to the monitoring and management of adverse events is essential for the patients' safety in this combination therapy.
Humans
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Myelodysplastic Syndromes/drug therapy*
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Sulfonamides/therapeutic use*
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Bridged Bicyclo Compounds, Heterocyclic/therapeutic use*
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Female
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Male
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Treatment Outcome
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Middle Aged
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Aged
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Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
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Adult
6.International clinical practice guideline on the use of traditional Chinese medicine for functional dyspepsia (2025).
Sheng-Sheng ZHANG ; Lu-Qing ZHAO ; Xiao-Hua HOU ; Zhao-Xiang BIAN ; Jian-Hua ZHENG ; Hai-He TIAN ; Guan-Hu YANG ; Won-Sook HONG ; Yu-Ying HE ; Li LIU ; Hong SHEN ; Yan-Ping LI ; Sheng XIE ; Jin SHU ; Bin-Fang ZENG ; Jun-Xiang LI ; Zhen LIU ; Zheng-Hua XIAO ; Jing-Dong XIAO ; Pei-Yong ZHENG ; Shao-Gang HUANG ; Sheng-Liang CHEN ; Gui-Jun FEI
Journal of Integrative Medicine 2025;23(5):502-518
Functional dyspepsia (FD), characterized by persistent or recurrent dyspeptic symptoms without identifiable organic, systemic or metabolic causes, is an increasingly recognized global health issue. The objective of this guideline is to equip clinicians and nursing professionals with evidence-based strategies for the management and treatment of adult patients with FD using traditional Chinese medicine (TCM). The Guideline Development Group consulted existing TCM consensus documents on FD and convened a panel of 35 clinicians to generate initial clinical queries. To address these queries, a systematic literature search was conducted across PubMed, EMBASE, the Cochrane Library, China National Knowledge Infrastructure (CNKI), VIP Database, China Biology Medicine (SinoMed) Database, Wanfang Database, Traditional Medicine Research Data Expanded (TMRDE), and the Traditional Chinese Medical Literature Analysis and Retrieval System (TCMLARS). The evidence from the literature was critically appraised using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. The strength of the recommendations was ascertained through a consensus-building process involving TCM and allopathic medicine experts, methodologists, pharmacologists, nursing specialists, and health economists, leveraging their collective expertise and empirical knowledge. The guideline comprises a total of 43 evidence-informed recommendations that span a range of clinical aspects, including the pathogenesis according to TCM, diagnostic approaches, therapeutic interventions, efficacy assessments, and prognostic considerations. Please cite this article as: Zhang SS, Zhao LQ, Hou XH, Bian ZX, Zheng JH, Tian HH, Yang GH, Hong WS, He YY, Liu L, Shen H, Li YP, Xie S, Shu J, Zeng BF, Li JX, Liu Z, Xiao ZH, Xiao JD, Zheng PY, Huang SG, Chen SL, Fei GJ. International clinical practice guideline on the use of traditional Chinese medicine for functional dyspepsia (2025). J Integr Med. 2025; 23(5):502-518.
Dyspepsia/drug therapy*
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Humans
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Medicine, Chinese Traditional/methods*
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Practice Guidelines as Topic
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Drugs, Chinese Herbal/therapeutic use*
7. Advances in relationship between pyroptosis and pulmonary arterial hypertension and therapeutic drugs
Qian YAN ; Yang SUN ; Jun-Peng LONG ; Jiao YAO ; Yu-Ting LIN ; Song-Wei YANG ; Yan-Tao YANG ; Gang PEI ; Qi-Di AI ; Nai-Hong CHEN ; Qian YAN ; Yang SUN ; Jun-Peng LONG ; Jiao YAO ; Yu-Ting LIN ; Song-Wei YANG ; Yan-Tao YANG ; Gang PEI ; Qi-Di AI ; Nai-Hong CHEN ; Sha-Sha LIU ; Nai-Hong CHEN
Chinese Pharmacological Bulletin 2024;40(1):25-30
Pyroptosis is the programmed death of cells accompanied by an inflammatory response and is widely involved in the development of a variety of diseases, such as infectious diseases, cardiovascular diseases, and neurodegeneration. It has been shown that cellular scorching is involved in the pathogenesis of pulmonary arterial hypertension ( PAH) in cardiovascular diseases. Patients with PAH have perivascular inflammatory infiltrates in lungs, pulmonary vasculopathy exists in an extremely inflam-matory microenvironment, and pro-inflammatory factors in cellular scorching drive pulmonary vascular remodelling in PAH patients. This article reviews the role of cellular scorch in the pathogenesis of PAH and the related research on drugs for the treatment of PAH, with the aim of providing new ideas for clinical treatment of PAH.
8.Analysis of the causes of cage subsidence after oblique lateral lumbar interbody fusion
Zhong-You ZENG ; Ping-Quan CHEN ; Xing ZHAO ; Hong-Fei WU ; Jian-Qiao ZHANG ; Xiang-Qian FANG ; Yong-Xing SONG ; Wei YU ; Fei PEI ; Shun-Wu FAN ; Guo-Hao SONG ; Shi-Yang FAN
China Journal of Orthopaedics and Traumatology 2024;37(1):33-44
Objective To observe the cage subsidence after oblique lateral interbody fusion(OLIF)for lumbar spondylo-sis,summarize the characteristics of the cage subsidence,analyze causes,and propose preventive measures.Methods The data of 144 patients of lumbar spine lesions admitted to our hospital from October 2015 to December 2018 were retrospectively ana-lyzed.There were 43 males and 101 females,and the age ranged from 20 to 81 years old,with an average of(60.90±10.06)years old.Disease types:17 patients of lumbar intervertebral disc degenerative disease,12 patients of giant lumbar disc hernia-tion,5 patients of discogenic low back pain,33 patients of lumbar spinal stenosis,26 patients of lumbar degenerative spondy-lolisthesis,28 patients of lumbar spondylolisthesis with spondylolisthesis,11 patients of adjacent vertebral disease after lumbar internal fixation,7 patients of primary spondylitis in the inflammatory outcome stage,and 5 patients of lumbar degenerative scoliosis.Preoperative dual-energy X-ray bone mineral density examination showed 57 patients of osteopenia or osteoporosis,and 87 patients of normal bone density.The number of fusion segments:124 patients of single-segment,11 patients of two-seg-ment,8 patients of three-segment,four-segment 1 patient.There were 40 patients treated by stand-alone OLIF,and 104 patients by OLIF combined with posterior pedicle screw.Observed the occurrence of fusion cage settlement after operation,conducted monofactor analysis on possible risk factors,and observed the influence of fusion cage settlement on clinical results.Results All operations were successfully completed,the median operation time was 99 min,and the median intraoperative blood loss was 106 ml.Intraoperative endplate injury occurred in 30 patients and vertebral fracture occurred in 5 patients.The mean follow-up was(14.57±7.14)months from 6 to 30 months.During the follow-up,except for the patients of primary lumbar interstitial in-flammation and some patients of lumbar spondylolisthesis with spondylolisthesis,the others all had different degrees of cage subsidence.Cage subsidence classification:119 patients were normal subsidence,and 25 patients were abnormal subsidence(23 patients were grade Ⅰ,and 2 patients were grade Ⅱ).There was no loosening or rupture of the pedicle screw system.The height of the intervertebral space recovered from the preoperative average(9.48±1.84)mm to the postoperative average(12.65±2.03)mm,and the average(10.51±1.81)mm at the last follow-up.There were statistical differences between postop-erative and preoperative,and between the last follow-up and postoperative.The interbody fusion rate was 94.4%.The low back pain VAS decreased from the preoperative average(6.55±2.2 9)to the last follow-up(1.40±0.82),and there was statistically significant different.The leg pain VAS decreased from the preoperative average(4.72±1.49)to the final follow-up(0.60± 0.03),and the difference was statistically significant(t=9.13,P<0.000 1).The ODI index recovered from the preoperative av-erage(38.50±6.98)%to the latest follow-up(11.30±3.27)%,and there was statistically significant different.The complication rate was 31.3%(45/144),and the reoperation rate was 9.72%(14/144).Among them,8 patients were reoperated due to fusion cage subsidence or displacement,accounting for 57.14%(8/14)of reoperation.The fusion cage subsidence in this group had obvious characteristics.The monofactor analysis showed that the number of abnormal subsidence patients in the osteopenia or osteoporosis group,Stand-alone OLIF group,2 or more segments fusion group,and endplate injury group was higher than that in the normal bone mass group,OLIF combined with pedicle screw fixation group,single segment fusion group,and no endplate injury group,and the comparison had statistical differences.Conclusion Cage subsidence is a common phenomenon after 0-LIF surgery.Preoperative osteopenia or osteoporosis,Stand-alone OLIF,2 or more segments of fusion and intraoperative end-plate injury may be important factors for postoperative fusion cage subsidence.Although there is no significant correlation be-tween the degree of cage subsidence and clinical symptoms,there is a risk of cage migration,and prevention needs to be strengthened to reduce serious complications caused by fusion of cage subsidence,including reoperation.
9.Immune Reconstitution after BTKi Treatment in Chronic Lymphocytic Leukemia
Yuan-Li WANG ; Pei-Xia TANG ; Kai-Li CHEN ; Guang-Yao GUO ; Jin-Lan LONG ; Yang-Qing ZOU ; Hong-Yu LIANG ; Zhen-Shu XU
Journal of Experimental Hematology 2024;32(1):1-5
Objective:To analyze the immune reconstitution after BTKi treatment in patients with chronic lymphocytic leukemia(CLL).Methods:The clinical and laboratorial data of 59 CLL patients admitted from January 2017 to March 2022 in Fujian Medical University Union Hospital were collected and analyzed retrospectively.Results:The median age of 59 CLL patients was 60.5(36-78).After one year of BTKi treatment,the CLL clones(CD5+/CD19+)of 51 cases(86.4%)were significantly reduced,in which the number of cloned-B cells decreased significantly from(46±6.1)× 109/L to(2.3±0.4)× 109/L(P=0.0013).But there was no significant change in the number of non-cloned B cells(CD19+minus CD5+/CD19+).After BTKi treatment,IgA increased significantly from(0.75±0.09)g/L to(1.31±0.1)g/L(P<0.001),while IgG and IgM decreased from(8.1±0.2)g/L and(0.52±0.6)g/L to(7.1±0.1)g/L and(0.47±0.1)g/L,respectively(P<0.001,P=0.002).BTKi treatment resulted in a significant change in T cell subpopulation of CLL patients,which manifested as both a decrease in total number of T cells from(2.1±0.1)× 109/L to(1.6±0.4)× 109/L and NK/T cells from(0.11±0.1)× 109/L to(0.07±0.01)× 109/L(P=0.042,P=0.038),both an increase in number of CD4+cells from(0.15±6.1)× 109/L to(0.19±0.4)× 109/L and CD8+cells from(0.27±0.01)× 109/L to(0.41±0.08)× 109/L(both P<0.001).BTKi treatment also up-regulated the expression of interleukin(IL)-2 while down-regulated IL-4 and interferon(IFN)-γ.However,the expression of IL-6,IL-10,and tumor necrosis factor(TNF)-α did not change significantly.BTKi treatment could also restored the diversity of TCR and BCR in CLL patients,especially obviously in those patients with complete remission(CR)than those with partial remission(PR).Before and after BTKi treatment,Shannon index of TCR in patients with CR was 0.02±0.008 and 0.14±0.001(P<0.001),while in patients with PR was 0.01±0.03 and 0.05±0.02(P>0.05),respectively.Shannon index of BCR in patients with CR was 0.19±0.003 and 0.33±0.15(P<0.001),while in patients with PR was 0.15±0.009 and 0.23±0.18(P<0.05),respectively.Conclusions:BTKi treatment can shrink the clone size in CLL patients,promote the expression of IgA,increase the number of functional T cells,and regulate the secretion of cytokines such as IL-2,IL-4,and IFN-γ.BTKi also promote the recovery of diversity of TCR and BCR.BTKi treatment contributes to the reconstitution of immune function in CLL patients.
10.Clinical Characteristics of Pneumocystis Jiroveci Pneumonia after Allogeneic Hematopoietic Stem Cell Transplantation
Jing XIA ; Jun-Hong JIANG ; Ye ZHAO ; Xiao MA ; De-Pei WU ; Su-Ning CHEN ; Feng CHEN
Journal of Experimental Hematology 2024;32(6):1882-1887
Objective:To summarize the clinical characteristics of patients with combined pneumocystis jiroveci pneumonia (PJP ) after allogeneic hematopoietic stem cell transplantation (allo-HSCT ). Methods:The clinical manifestations,laboratory tests,imaging findings,and treatment outcomes of 21 allo-HSCT patients with PJP diagnosed at the First Affiliated Hospital of Soochow University and Soochow Hopes Hematology Hospital from July 2018 to July 2023 were retrospective analyzed.Results:Among the 21 patients,the male-to-female ratio was 2.5:1,and the median age was 36 years old with a range of 15-62 years.The median time to diagnosis of PJP after transplantation was 225 days.The clinical manifestations lack specificity,and the main clinical symptoms include respiratory symptoms (dyspnea,cough,sputum,etc.) and fever.Laboratory examination revealed peripheral blood lymphocyte counts decreased in 15 cases,CD4+T lymphocyte absolute values less than 200 cells/μl in 19 patients,C-reactive protein levels significantly increased in 20 patients,lactate dehydrogenase levels increased in 14 patients,and 1,3-β-D-glucan detection levels increased in 14 patients.Chest CT manifestations can be divided into three types:ground glass type,nodular type,and mixed type.Among them,the incidence of ground glass type was the highest (18/21),with 2 cases of nodular type and 1 case of mixed type.The sequence number of Pneumocystis jiroveci was detected through mNGS (15-57570),and 11 patients had mixed infections.In terms of treatment,TMP-SMX,Caspofungin,and methylprednisolone were administered,and 17 patients achieved improvement in their condition.Four patients died,all of whom died from respiratory failure.Conclusion:PJP is a critically ill condition after hematopoietic stem cell transplantation,and diagnosis is difficult.Early diagnosis can achieve better prognosis.The sensitivity of mNGS in diagnosing PJP is high,providing the possibility of early and accurate diagnosis for clinical practice,which is worthy of application and promotion.

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