1.Advances in the treatment of retained products of conception.
Dayu YAN ; Xiangyang ZENG ; Dabao XU ; Lihui XU
Journal of Central South University(Medical Sciences) 2025;50(1):91-98
Retained products of conception (RPOC) represent a common pregnancy-related condition that may lead to complications such as abnormal uterine bleeding, infection, secondary arteriovenous fistula, intrauterine adhesions, and infertility. Currently, the main clinical treatments for RPOC include surgical intervention, medical therapy, and expectant management, sometimes supplemented by high-intensity focused ultrasound or uterine artery embolization when necessary. However, no standardized treatment guidelines exist. Medical and expectant management may help some patients avoid or reduce the need for surgery, though these approaches often involve a prolonged disease course. While surgery yields rapid results, patients with large lesions may require multiple procedures, increasing the risk of endometrial damage and intrauterine adhesions. There is still a lack of robust evidence-based guidance for selecting the optimal or individualized treatment approach. This review explores recent advances in the management of RPOC, with an emphasis on strategies that effectively preserve the endometrium, safeguard fertility, and support more precise, minimally invasive, and efficient personalized treatment.
Humans
;
Female
;
Pregnancy
;
Placenta, Retained/surgery*
;
Uterine Artery Embolization/methods*
;
Tissue Adhesions
;
Endometrium
;
High-Intensity Focused Ultrasound Ablation
2.Exploration and practice of the training model for applied talents in Traditional Chinese Medicine based on the"Four Combinations"
Yan ZHANG ; Sitong LU ; Jie WANG ; Dayu SUN ; Hui JIA ; Yao LU ; Na SHI
Journal of Shenyang Medical College 2024;26(4):436-439
Objective:To explore the practical effect of applied talent training model based on the"Four Combinations"among students majoring in Traditional Chinese Medicine in a Medical College.Methods:The undergraduate students majoring in Traditional Chinese Medicine at a medical college from grade 2021 and 2022 were selected as the research subjects and divided into two groups.Experimental group were students who had participated in various extracurricular competitions and innovation and entrepreneurship projects,while control group were students who had not participated in any competitions or projects.The final intellectual education scores of the two groups of students were compared(excluding the scores of Marxist basic principles).A questionnaire survey was conducted on the satisfaction of talent cultivation models among the above undergraduate students,and the validity and satisfaction analysis of the survey results were conducted.Results:The experimental group had significantly higher intellectual education scores than the control group(P<0.05).The results of factor analysis indicated that the sample suitability and the questionnaire validity seem plausible(KMO=0.874).The overall satisfaction score of students towards the"Four Combinations"talent cultivation model was 4.16±0.2(out of 5),reflecting their high recognition of the model.Conclusion:The construction of a"Four Combinations"characteristic Traditional Chinese Medicine applied talent cultivation model is beneficial for improving the quality of cultivating high-quality and composite applied talents in Traditional Chinese Medicine,so as to provide high-quality applied talents with solid theoretical foundation and practical innovation capabilities for the Liaoshen region.
3.Transcriptomic analysis reveals "adipogenesis" in the uterosacral ligaments of postmenopausal women with recurrent pelvic organ prolapse.
Yanhua ZHOU ; Dayu YAN ; Xiulan ZHANG ; Xuhong LI ; Wenguang YAN ; Li JIANG
Journal of Central South University(Medical Sciences) 2024;49(11):1808-1820
OBJECTIVES:
Pelvic organ prolapse (POP) is a common condition in postmenopausal women, with an increasing prevalence due to aging. Some women experience POP recurrence after surgical treatment, significantly affecting their physical and mental health. The uterosacral ligament is a critical pelvic support structure. This study aims to investigate the molecular pathological changes in the uterosacral ligament of postmenopausal women with recurrent POP using transcriptomic analysis.
METHODS:
Transcriptomic data of uterosacral ligament tissues were obtained from the public dataset GSE28660, which includes samples from 4 postmenopausal women with recurrent POP, 4 with primary POP, and 4 without POP. Differentially expressed genes (DEGs) were identified between recurrent POP and both primary and non-POP groups. Further analysis included intersection analysis of DEGs, gene ontology enrichment, protein-protein interaction (PPI) network construction, gene set enrichment analysis (GSEA), single-sample GSEA, and xCell immune cell infiltration analysis to explore molecular pathological changes in recurrent POP. Additionally, histological and molecular differences in the uterosacral ligament were compared between simulated vaginal delivery (SVD) rat models with and without ovariectomy.
RESULTS:
Compared with primary POP and non-POP groups, recurrent POP exhibited activation of adipogenesis and inflammation-related pathways, while pathways related to muscle proliferation and contraction were downregulated in the uterosacral ligament. Nine key DEGs (ADIPOQ, FABP4, IL-6, LIPE, LPL, PCK1, PLIN1, PPARG, and CD36) were identified, with most enriched in the peroxisome proliferator-activated receptor (PPAR) signaling pathway. These genes were significantly correlated with lipid accumulation, monocyte infiltration, and neutrophil infiltration in the uterosacral ligament. Urodynamic testing revealed that the bladder leak point pressure was significantly higher in ovariectomized SVD rats, both of which had higher values than the sham group. Masson staining showed pronounced adipogenesis in the uterosacral ligament of ovariectomized SVD rats, along with reduced collagen and muscle fibers compared to the sham and non-ovariectomized SVD groups. Furthermore, real-time RT-PCR confirmed significantly elevated expression of key DEGs, including ADIPOQ, IL-6, PCK1, and PLIN1, in the uterosacral ligaments of ovariectomized SVD rats.
CONCLUSIONS
Adipogenesis and inflammation in the uterosacral ligament may contribute to its reduced supportive function, potentially leading to recurrence POP in postmenopausal women.
Female
;
Humans
;
Ligaments/pathology*
;
Pelvic Organ Prolapse/metabolism*
;
Postmenopause
;
Animals
;
Rats
;
Adipogenesis/genetics*
;
Recurrence
;
Gene Expression Profiling
;
Transcriptome
;
Middle Aged
;
Ovariectomy
;
Protein Interaction Maps
;
Aged
;
Rats, Sprague-Dawley
;
Uterus
4.Association between wrist pain and awkward postures among workers in 10 key industries
Guanlin LI ; Xin SUN ; Meibian ZHANG ; Huadong ZHANG ; Ruijie LING ; Yimin LIU ; Gang LI ; Nengzhou CHEN ; Zaoliang REN ; Yan YIN ; Hua SHAO ; Hengdong ZHANG ; Jiajie LI ; Bing QIU ; Dayu WANG ; Qiang ZENG ; Zhanhui LIANG ; Rugang WANG ; Jianchao CHEN ; Danying ZHANG ; Liangying MEI ; Yongquan LIU ; Jixiang LIU ; Chengyun ZHANG ; Tianlai LI ; Ning JIA ; Junyi WANG ; Zhongxu WANG ; Qingsong CHEN
Journal of Environmental and Occupational Medicine 2023;40(1):49-54
Background Prolonged awkward postures during occupational activities can lead to excessive musculoskeletal load on the wrist of workers and symptoms such as wrist pain or discomfort. Objective To survey the prevalence of wrist pain among workers in 10 key industries and analyze its correlation with wrist working postures. Methods By using stratified cluster sampling method, workers from 10 key industries, such as footwear manufacturing industry, shipbuilding manufacturing industry, and automobile manufacturing industry, were selected from seven regions in North China, East China, Central China, South China, Southwest China, Northwest China, and Northeast China. The demographic information, wrist working postures, pain in wrist of the workers were collected through a cross-sectional survey. Pearson χ2 test was used to compare prevalence by selected factors, trend χ2 test for between group comparison, and unconditional logistic regression models for the association of wrist working postures with wrist pain. Results There were 64052 workers enrolled in this survey, and 56286 provided valid questionnaires (the effective rate was 87.8%). According to the survey, the prevalence of wrist pain was 23.3% (13112/56286), and the industries with higher prevalences were footwear manufacturing (27.1%, 1927/7106), automobile manufacturing (24.9%, 5378/21560), and shipbuilding and related equipment manufacturing (24.4%, 850/3488) industries. Finger pinching (OR=2.09, 95%CI: 1.95-2.24), frequent wrist bending (OR=2.03, 95%CI: 1.92-2.15), fixed wrist bending (OR=1.77, 95%CI: 1.69-1.85), wrist on hard edge (OR=1.34, 95%CI: 1.28-1.40), and arms over shoulders (OR=1.11, 95%CI: 1.05-1.17) increased the risk of reporting wrist pain. Conclusion Awkward postures are related to wrist pain among workers in selected 10 key industries. The related factors are wrist on hard edge, frequent wrist bending, finger pinching, fixed wrist bending, and arms over shoulders.
5.Correlation between work fatigue and work-related musculoskeletal pain or injury in the occupational population in China
Qing XU ; Huadong ZHANG ; Ruijie LING ; Yimin LIU ; Gang LI ; Zaoliang REN ; Yan YIN ; Hua SHAO ; Hengdong ZHANG ; Bing QIU ; Meibian ZHANG ; Dayu WANG ; Qiang ZENG ; Rugang WANG ; Jianchao CHEN ; Danying ZHANG ; Liangying MEI ; Yongquan LIU ; Jixiang LIU ; Chengyun ZHANG ; Tianlai LI ; Ning JIA ; Zhongxu WANG
China Occupational Medicine 2023;50(2):133-139
6.Expression of triggering receptor expressed on myeloid cells in periventricular leukomalacia of neonatal rat model
Dayu WANG ; Xiaoyan YE ; Yan XU ; Jun WANG
Chinese Journal of Behavioral Medicine and Brain Science 2020;29(2):109-113
Objective:To investigate the expression of triggering receptor expressed on myeloid cells(TREMs)in periventricular leukomalacia(PVL) of the neonatal rat model.Methods:Thirty-two 3-day-old neonatal rats were double-blinded randomly divided into Sham group and Model group.The PVL rat model was established by ligating right carotid artery and oxygen deprivation.Hematoxylin-eosin (HE) was adopted to compare pathological changes of brain tissue between the two groups, and immunofluorescence was adopted to detect the expression of myline basic protein (MBP) in the right hemisphere of the two groups.Western blot was performed to detect the expression of TREM1 and TREM2 in the right hemisphere of the two groups.Results:The results of HE staining showed that the brain tissues of Model group were significantly damaged compared with that of Sham group, and the mean fluorescence intensity of MBP in Model group(26.629±2.317) was significantly lower than that in Sham group(33.579±2.824), with statistically significant differences( t=9.124, P<0.05). The expression of TREM1 in Model group(0.789 ±0.120) was higher than that in Sham group(0.567±0.093), with statistically significant differences( t=-3.891, P<0.05). The expression of TREM2 in Model group(0.544±0.133) was lower than that in Sham group(0.791±0.118), with statistically significant differences( t=3.667, P<0.05). Conclusion:The expressions of TREM1 and TREM2 in the neonatal rat model of PVL change abnormally, suggesting that TREMs may be involved in the pathological process of preterm white matter injury.
7. Analysis of CGDH gene variants and clinical features in three patients with glutaric aciduria type Ⅰ
Jianqiang TAN ; Dayu CHEN ; Tizhen YAN ; Jun HUANG ; Ren CAI
Chinese Journal of Medical Genetics 2019;36(9):882-885
Objective:
To screen for potential variants of
8.SLC22A5 gene mutation analysis and prenatal diagnosis for a family with primary carnitine deficiency.
Jianqiang TAN ; Dayu CHEN ; Zhetao LI ; Dejian YUAN ; Bailing LIU ; Tizhen YAN ; Jun HUANG ; Ren CAI
Chinese Journal of Medical Genetics 2019;36(7):690-693
OBJECTIVE:
To carry out mutation analysis and prenatal diagnosis for a family affected with primary carnitine deficiency.
METHODS:
Genomic DNA of the proband was extracted from peripheral blood sample 10 days after birth. The 10 exons and intron/exon boundaries of the SLC22A5 gene were subjected to PCR amplification and Sanger sequencing. The proband's mother was pregnant again two years after his birth. Fetal DNA was extracted from amniocytes and subjected to PCR and Sanger sequencing.
RESULTS:
Tandem mass spectrometric analysis of the proband revealed low level of plasma-free carnitine whilst organic acids in urine was normal. Compound heterozygous SLC22A5 mutations c.1195C>T (inherited from his father) and c.517delC (inherited from his mother) were detected in the proband. Prenatal diagnosis has detected no mutation in the fetus. The plasma-free carnitine was normal after birth.
CONCLUSION
Appropriate genetic testing and prenatal diagnosis can prevent further child with carnitine deficiency. The identification of c.517delC, a novel mutation, enriched the spectrum of SLC22A5 mutations.
Cardiomyopathies
;
genetics
;
Carnitine
;
deficiency
;
genetics
;
Child, Preschool
;
DNA Mutational Analysis
;
Female
;
Humans
;
Hyperammonemia
;
genetics
;
Muscular Diseases
;
genetics
;
Mutation
;
Pregnancy
;
Prenatal Diagnosis
;
Solute Carrier Family 22 Member 5
;
genetics
9. Tandem mass spectrometry analysis and genetic diagnosis of neonates with fatty acid oxidation disorders in central and northern regions of Guangxi
Jianqiang TAN ; Dayu CHEN ; Jun HUANG ; Rongni CHANG ; Tizhen YAN ; Ren CAI
Chinese Journal of Medical Genetics 2019;36(11):1067-1072
Objective:
To determine the incidence and mutational types of fatty acid oxidation disorders (FAOD) in central-northern region of Guangxi.
Methods:
A total of 62 953 neonates were screened for FAOD during December 2012 and December 2017. Acyl-carnitine profiling of neonatal blood sample was performed by tandem mass spectrometry using dry blood spots on a filter paper. The diagnosis of FAOD was confirmed by organic acid profiling of urea and genetic testing.
Results:
Eighteen cases of FAOD were diagnosed among the 62 953 neonates. Among these, primary carnitine deficiency (PCD) was the most common type (
10.Analysis of CGDH gene variants and clinical features in three patients with glutaric aciduria type Ⅰ.
Jianqiang TAN ; Dayu CHEN ; Tizhen YAN ; Jun HUANG ; Ren CAI
Chinese Journal of Medical Genetics 2019;36(9):882-885
OBJECTIVE:
To screen for potential variants of GCDH gene in 3 patients clinically diagnosed as glutaric aciduria type Ⅰ.
METHODS:
GCDH gene variants was detected by Sanger sequencing among the three children and their family members.
RESULTS:
Sanger sequencing showed that patient 1 carried compound heterozygosity variants of c.532G>A (p.Gly178Arg) and c.655G>A (p.Ala219Thr) of the GCDH gene, while his father and mother respectively carried heterozygous c.532G>A(p.Gly178Arg) and c.655G>A (p.Ala219Thr) variants. Patient 2 carried c.532G>A (p.Gly178Arg) and a novel c.1060G>T (p.Gly354Cys) compound heterozygous variant, while his father and mother respectively carried heterozygous c.532G>A (p.Gly178Arg) and c.1060G>T (p.Gly354Cys) variant. Patient 3 carried homozygous c.532G>A (p.Gly178Arg) variant of the GCDH gene, for which both of his parents were heterozygous carriers.
CONCLUSION
The GCDH gene variant probably underlie the glutaric aciduria type Ⅰ among the 3 patients. Identifcation of the novel variant has enriched the spectrum of GCDH gene variants.
Amino Acid Metabolism, Inborn Errors
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genetics
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Brain Diseases, Metabolic
;
genetics
;
Female
;
Glutaryl-CoA Dehydrogenase
;
deficiency
;
genetics
;
Heterozygote
;
Humans
;
Male

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