1.Explore of nanopore sequencing technology in ambiguities of HLA genotyping
Nanying CHEN ; Wei ZHANG ; Lina DONG ; Fang WANG ; Yizhen HE ; Chen CHEN ; Faming ZHU
Chinese Journal of Blood Transfusion 2025;38(3):309-315
[Objective] To resolve the ambiguities of HLA genotyping generated by next generation sequencing (NGS) using nanopore sequencing technology. [Methods] A total of 38 samples with ambiguous HLA genotyping by NGS in our laboratory were collected, and HLA-A, -B, -C, -DRB1, -DRB3/4/5, -DQA1, -DQB1, -DPA1 and -DPB1 loci in these samples were amplified using primers in the same commercial NGS HLA genotyping kit, then subjected to third-generation library construction, and sequenced on the nanopore sequencer. The sequencing data were converted into Fastq files and analyzed by software, and the genotypes of 11 HLA loci were obtained. The ambiguities were counted directly. [Results] The high-resolution genotyping at the second domain of 11 HLA loci of 38 samples using the third generation sequencing (TGS) were consistent with the results of the NGS method at a rate of 100%. The genotypes for the HLA-A, -B, -C, -DRB3, -DRB4, -DQA1 and -DPA1 loci by TGS were all only one result, and the discrimination rate for ambiguities of the HLA-A, -B, -C, and -DQA1 loci (all caused by the difficulty in phasing due to the short NGS read length) was 100%. Among the HLA-DRB1, -DRB5, -DQB1 and -DPB1 loci, the discrimination rate of TGS for the ambiguities caused by non-amplification of exon 1 was 0% and by the short NGS read length was 100%. [Conclusion] Nanopore technology was used to identify the ambiguities of 11 HLA loci in this study, and the ambiguities caused by the short read length disadvantage of the NGS method could be solved effectively and the accuracy of HLA genotyping would be improved.
2.The correlation between thrombolysis decision-making anxiety and decision-making duration among surrogate decision-makers of patients with acute ischemic stroke
Caixia YANG ; Keke MA ; Lina GUO ; Xiaofang DONG ; Yapeng LI ; Yuanli GUO
Chinese Journal of Behavioral Medicine and Brain Science 2024;33(2):133-139
Objective:To explore the anxiety level, influencing factors among surrogate decision-makers of patients with acute ischemic stroke during thrombolysis decision-making, and their correlation with decision-making duration.Methods:Acute ischemic stroke patients and their surrogate decision-makers who visited the Emergency Department of the First Affiliated Hospital of Zhengzhou University from September 2019 to December 2021 were selected as the research subjects.Sociodemographic data and disease related data of patients and surrogate decision-makers were collected.Surrogate decision-makers were evaluated with the state-trait anxiety inventory, decision participation expectation scale, Wake Forest physician trust scale, and perceived social support scale.SPSS 26.0 software was used for data processing.Pearson correlation analysis, Spearman correlation analysis and ridge regression analysis were used for statistical analysis.Results:The score of state anxiety of decision-makers was (49.47±9.04), and 18.2% (70/383) of decision-makers had a decision duration exceeding 15 minutes.The score of state anxiety of decision-makers was positively correlated with decision duration ( r=0.189, P<0.001). The influencing factors of state anxiety level of decision-makers included sociodemographic factors (age of decision-makers and patients, relationship between payers and patients, whether decision-makers bear the current medical expenses, type of medical insurance for patients), psychological factors (trust level in physicians, perceived social support), factors related to patient disease (numbers of stroke relapses, National Institutes of Health stroke scale scores for patients), characteristics of the decision-making process (whether patients participate in the decision-making process, and the role of decision-makers in the decision-making process) (all P<0.05). Conclusion:Most surrogate decision-makers experience anxiety.Medical staff should pay attention to the emotions of decision-makers and adopt appropriate communication skills when communicating with informed consent for thrombolysis, alleviate the anxiety of surrogate decision-makers, so as so reduce the decision-making duration.
3.Progresses of functional MRI for exploring mechanism of neurovascular coupling changes in diabetes mellitus type 2
Dong YANG ; Shan XU ; Xuyang WANG ; Lina DU ; Lin LIN ; Jing SHEN ; Jianlin WU
Chinese Journal of Medical Imaging Technology 2024;40(1):125-129
The cognitive impairment of diabetes mellitus type 2(T2DM)is closely related to neurovascular coupling(NVC)changes,but the exact mechanism remains unclear.Functional MRI(fMRI)technology were able to jointly analyze NVC changes of T2DM,providing new ideas for revealing the mechanism of cognitive dysfunction caused by T2DM.The progresses of fMRI for exploring NVC changes in T2DM were reviewed in this article.
4.Research progress in the treatment of maxillary transverse deficiency with combined orthodontic-orthognathic approach
Yang WANG ; Xiaozhou MA ; Lina ZHANG ; Shujun DONG
Chinese Journal of Stomatology 2024;59(7):726-731
In combined orthodontic-orthognathic treatment, the maxillary palatine suture is closed in most patients with insufficient maxillary width, and bony expansion of the maxilla cannot be achieved by dental expansion or rapid palatal expansion (RPE) which causes buccal inclination of the maxillary posterior teeth leading to unstable results. Therefore, segmental LeFort Ⅰ osteotomy and surgically assisted RPE are often used in clinical practice. In recent years, with the application of implant anchorage technology, implant anchorage assisted RPE has been gradually applied in orthognathic treatment. This article reviewed the indications, contraindications, complications, efficacy and long-term stability in different treatment approaches including segmental LeFort Ⅰ osteotomy, surgically assisted RPE and implant-supported maxillary skeletal expansion.
5.Factors associated with nursery care institution attendance for children aged 0 - 3 years old and the basic characteristics of nursery care institutions that children were enrolled in
Wenhong DONG ; Xinmeng YAO ; Xin XU ; Lina LYU ; Shasha WANG ; Shuangshuang ZHENG ; Lei WANG ; Bingquan ZHU ; Jie SHAO
Chinese Journal of Child Health Care 2024;32(2):122-126
【Objective】 To understand factors associated with children′s attendance at nursery care institutions (NCIs) and the basic characteristics of the NCIs children were enrolled in, so as to provide scientific evidence for policymakers. 【Methods】 During November 2020 and January 2021, parents who visited the Department of Child Health Care in six selected maternal and children′s hospitals, as well as nearby NCIs in Zhejiang were invited to finish an online questionnaire. Information such as children′s sociodemographic characteristics, parents′ knowledge, attitude and practice regarding nursery and feeding, etc. were collected. A total of 1 756 questionnaires were collected. 【Results】 Compared to children who were not in NCIs, children enrolled in NCIs were older (94.4% of children ≥24 months vs. 30.1%, χ2=835.27), more likely to be from the local area (87.2% vs. 81.4%,χ2=12.25), more likely to have parents with a college degree (mother: 83.6% vs. 74.2%, χ2=35.29; father: 79.9% vs. 70.0%, χ2=27.01), had a higher prevalence of family annual income >200 000 CNY (49.5% vs. 28.2%, χ2=110.49), and were less likely to have their grandparents available to take care of them (16.7% vs. 26.8%, χ2=31.4) The difference all have great significant.(P<0.05). In a multivariate Logistic regression model, the older the child, the more likely they were to attend an NCI (for children aged 6 - 23 months, OR=6.70; for children aged 24 - 35 months, OR=134.03; and for children aged 36 - 42 months, OR=699.33; P<0.05). Family annual income was positively associated with children′s attendance at NCIs (for those earning 100 000 - 200 000 CNY/year, OR=1.63; for those earning 200 000 - 500 000 CNY/year, OR=2.96; and for those earning >500 000 CNY/year, OR=4.62, P<0.05). Conversely, the higher the level of grandparent involvement in daily care, the lower the attendance at NCIs (for children cared for by both parents and grandparents, OR=0.57; for those primarily cared for by grandparents, OR=0.26, P<0.05). For children who used to stay at NCIs, 82.8% stayed at institutions that only recruited children aged 0 - 3 years, 97.4% spent their whole day in NCIs, and 71.4% spent less than 3 000 CNY per month for NCI services. Additionally, over 95% of parents were satisfied with the food and care services in NCIs, as well as their children′s physical development in NCIs. However, 32.1% of NCIs were reported by parents as having no room for breastfeeding. 【Conclusions】 Children′s age, grandparent involvement in routine care, and family annual income are the main factors associated with children′s attendance at NCIs. There is a greater need for more affordable and community-based NCIs, particularly for children under 2 years old. Additionally, more attention should be paid to the quality surveillance, assessment and management of NCIs.
6.Effects of erianin on the apoptosis of ovarian granulosa cells in rats with polycystic ovary syndrome and its mechanism
Lina FANG ; Yanyi LI ; Chao DONG ; Lili XU ; Zhaosong SHI ; Yuedong LI ; Bo YANG ; Zaichao XU
China Pharmacy 2024;35(11):1339-1344
OBJECTIVE To investigate the effects of erianin (ERI) on the apoptosis of ovarian granulosa cells in rats with polycystic ovary syndrome (PCOS) and its mechanism. METHODS PCOS rat model was constructed by subcutaneous injection of dehydroepiandrosterone, and the successfully constructed rats were randomly divided into PCOS group, ERI low-dose, medium- dose and high-dose groups (10, 20, 40 mg/kg) and ERI high dose + verteporfin group (40 mg/kg ERI + 10 mg/kg verteporfin), with 10 rats in each group. Another 10 normal rats were selected as the normal group. Rats in each administration group were given corresponding dose of ERI and/or intraperitoneal injection of vitiporfin, and rats in the PCOS group and normal group were orally administered an equal volume of 1% dimethyl sulfoxide, once a day, for 6 consecutive weeks. After administration, the body weight, fasting blood glucose (FPG), serum levels of estradiol (E2), testosterone (T), follicle stimulating hormone (FSH) and luteinizing hormone (LH) were detected in each group; morphological changes in ovarian tissue were observed, and the apoptosis of ovarian tissue cells was analyzed. Apoptosis-associated proteins [B-cell lymphoma-2 (Bcl-2), Bcl-2 associated X protein (Bax), Caspase-3] and Hippo-YAP signaling pathway associated proteins [large tumor suppressor kinase 1 (LATS1), phosphorylated LATS1 (p-LATS1) and Yes associated protein (YAP), phosphorylated YAP (p-YAP), transcriptional co-activator with PDZ binding motif (TAZ)] were detected in ovarian tissue. RESULTS Compared with PCOS group, the ovarian polycystic characteristics of the ERI low-dose, medium-dose,and high-dose groups were reduced, the number of atretic follicles was reduced, and the granulosa cell layer was thickened; the body mass, FPG, T, LH, LH/FSH, the number of cystic follicles, cell apoptosis index, protein expressions of Bax, Caspase-3, p-LATS1 and p-YAP were greatly decreased (P<0.05); the number of corpus luteum, protein expressions of E2, Bcl-2, LATS1, YAP and TAZ were greatly increased (P<0.05). Compared with ERI high-dose group, the above indexes in ERI high-dose + vitiporfin group were inhibited (P<0.05). CONCLUSIONS ERI can promote the proliferation of ovarian granulosa cells and improve the level of sex hormones in PCOS rats, and its mechanism of action may be related to the inhibition of the Hippo-YAP signaling pathway.
7.Effects of erianin on the apoptosis of ovarian granulosa cells in rats with polycystic ovary syndrome and its mechanism
Lina FANG ; Yanyi LI ; Chao DONG ; Lili XU ; Zhaosong SHI ; Yuedong LI ; Bo YANG ; Zaichao XU
China Pharmacy 2024;35(11):1339-1344
OBJECTIVE To investigate the effects of erianin (ERI) on the apoptosis of ovarian granulosa cells in rats with polycystic ovary syndrome (PCOS) and its mechanism. METHODS PCOS rat model was constructed by subcutaneous injection of dehydroepiandrosterone, and the successfully constructed rats were randomly divided into PCOS group, ERI low-dose, medium- dose and high-dose groups (10, 20, 40 mg/kg) and ERI high dose + verteporfin group (40 mg/kg ERI + 10 mg/kg verteporfin), with 10 rats in each group. Another 10 normal rats were selected as the normal group. Rats in each administration group were given corresponding dose of ERI and/or intraperitoneal injection of vitiporfin, and rats in the PCOS group and normal group were orally administered an equal volume of 1% dimethyl sulfoxide, once a day, for 6 consecutive weeks. After administration, the body weight, fasting blood glucose (FPG), serum levels of estradiol (E2), testosterone (T), follicle stimulating hormone (FSH) and luteinizing hormone (LH) were detected in each group; morphological changes in ovarian tissue were observed, and the apoptosis of ovarian tissue cells was analyzed. Apoptosis-associated proteins [B-cell lymphoma-2 (Bcl-2), Bcl-2 associated X protein (Bax), Caspase-3] and Hippo-YAP signaling pathway associated proteins [large tumor suppressor kinase 1 (LATS1), phosphorylated LATS1 (p-LATS1) and Yes associated protein (YAP), phosphorylated YAP (p-YAP), transcriptional co-activator with PDZ binding motif (TAZ)] were detected in ovarian tissue. RESULTS Compared with PCOS group, the ovarian polycystic characteristics of the ERI low-dose, medium-dose,and high-dose groups were reduced, the number of atretic follicles was reduced, and the granulosa cell layer was thickened; the body mass, FPG, T, LH, LH/FSH, the number of cystic follicles, cell apoptosis index, protein expressions of Bax, Caspase-3, p-LATS1 and p-YAP were greatly decreased (P<0.05); the number of corpus luteum, protein expressions of E2, Bcl-2, LATS1, YAP and TAZ were greatly increased (P<0.05). Compared with ERI high-dose group, the above indexes in ERI high-dose + vitiporfin group were inhibited (P<0.05). CONCLUSIONS ERI can promote the proliferation of ovarian granulosa cells and improve the level of sex hormones in PCOS rats, and its mechanism of action may be related to the inhibition of the Hippo-YAP signaling pathway.
8.Summary of best evidence for rehabilitation management of patients with motor dysfunction after stroke
Hongyu ZHAO ; Luozhifei ZHOU ; Ling HU ; Ru CHEN ; Lei DONG ; Qin ZHAO ; Lina GONG
Journal of Central South University(Medical Sciences) 2024;49(4):497-507
Objective:The rehabilitation work for patients with motor dysfunction after stroke is crucial.However,there is currently a lack of summarized evidence regarding the rehabilitation management of stroke patients in rehabilitation wards,communities,and at home.This study aims to compile relevant evidence on the rehabilitation management of patients with motor dysfunction after stroke,providing a reference for clinical and community health professionals to carry out rehabilitation interventions. Methods:A systematic search was conducted in BMJ Best Practice,UpToDate,National Guidebook Clearinghouse,American Heart Association/American Stroke Association,Canadian Medical Association,National Institute for Health and Clinical Excellence,United States Department of Veterans Affairs/Department of Defense,Registered Nurses Association of Ontario,JBI Evidence-Based Healthcare Center Database,The Cochrane Library,PubMed,Web of Science,Embase,CINAHL,CNKI,Wanfang Database,SinoMed,and other databases for all literature on the rehabilitation management of patients with motor dysfunction after stroke.This included clinical decision-making,guidelines,expert consensuses,recommended practices,systematic reviews,and evidence summaries,with the search period spanning from the establishment of each database to October 2023.Two researchers independently evaluated the quality of the literature. Results:A total of twenty-one documents were included,consisting of 11 guidelines,2 expert consensus,and 8 systematic reviews.Evidence was extracted and integrated from the included literature,summarizing forty-five pieces of evidence across nine areas:rehabilitation management model,rehabilitation institutions,rehabilitation teams,timing of rehabilitation interventions,rehabilitation assessment,rehabilitation programs,rehabilitation duration and frequency,rehabilitation intensity,and rehabilitation support These covered comprehensive rehabilitation management content for stroke patients in the early,subacute,and chronic phases. Conclusion:The best evidence summarized in this study for the rehabilitation management of patients with motor dysfunction after stroke is comprehensive and of high quality.It provides important guidance for clinical and community healthcare professionals in carrying out rehabilitation interventions.When applying the evidence,it is recommended to consider the current condition of the stroke patient,the extent of motor dysfunction,environmental factors,and the patient's preferences.Then,select the most appropriate rehabilitation plan,and adjust the type and intensity of training according to each patient's specific needs and preferences.
9.Clinicopathological features of primary mucosal CD30-positive T-cell lymphoproliferative disorders
Na DONG ; Lina ZHANG ; Yuanyuan ZHENG ; Yanlin ZHANG ; Xiaoge ZHOU ; Jianlan XIE
Chinese Journal of Pathology 2024;53(7):667-671
Objective:To investigate the clinicopathological features and differential diagnosis of primary mucosal CD30-positive T-cell lymphoproliferative disorders (pmCD30 +TLPD). Methods:Eight cases of pmCD30 +TLPD diagnosed from 2013 to 2023 at the Department of Pathology, Beijing Friendship Hospital Affiliated to Capital Medical University and Beijing Ludaopei Hospital were retrospectively collected. The immunophenotype, EBV infection status and T-cell receptor (TCR) clonability of tumor cells were examined. The clinicopathological features were analyzed and related literatures were reviewed. Results:There were 5 females and 3 males, aged 28 to 73 years, without B symptoms, lack of trauma and autoimmune diseases. Seven cases occurred in oral mucosa and one in anal canal mucosa. Submucosal nodules with ulcerations were presented in all cases except one, which only submucosal nodule. Morphologically, there was different distribution of allotypic lymphocytes in inflammatory background. Four cases showed “kidney-shaped”, “embryonic” and “horseshoe-shaped” cells, and one case resembled Hodgkin and Reed/Sternberg (HRS) cells. Allotypic lymphocytes expressed CD3 (7/8), CD4+/CD8-(7/8) and CD4-/CD8-(1/8). CD30 was uniformly strongly positive while ALK and CD56 were negative. In situ hybridization of EBER was negative in five cases (5/5). Clonal TCR gene rearrangement was positive in two cases. Four patients did not receive radiotherapy or chemotherapy. All the seven patients survived without disease except one died due to concurrent leukopenia.Conclusions:pmCD30 +TLPD had a broad morphological spectrum and could be easily confused with primary cutaneous CD30 +TLPD and systemic ALK-negative anaplastic large cell lymphoma involving mucosa, which may lead to misdiagnosis. Although the majority of the cases had a favorable prognosis, a few cases relapsed or progressed to lymphoma.
10.A multicenter study on respiratory pathogen detection with Mycoplasma pneumoniae pneumonia in children
Xiaoyan DONG ; Yingxue ZOU ; Fangfang LYU ; Wenhao YANG ; Hailin ZHANG ; Yanhua NIU ; Haojie WANG ; Run GUO ; Xu WANG ; Li LI ; Zihao LIN ; Li LUO ; Danli LU ; Quan LU ; Hanmin LIU ; Lina CHEN
Chinese Journal of Pediatrics 2024;62(4):310-316
Objective:To analyze the status of respiratory pathogen detection and the clinical features in children with Mycoplasma pneumoniae pneumonia (MPP). Methods:A prospective, multicenter study was conducted to collect clinical data, including medical history, laboratory examinations and multiplex PCR tests of children diagnosed with MPP from 4 hospitals in China between November 15 th and December 20 th, 2023. The multiplex PCR results and clinical characteristics of MPP children in different regions were analyzed. The children were divided into severe and mild groups according to the severity of the disease. Patients in the severe group were further divided into Mycoplasma pneumoniae (MP) alone and Multi-pathogen co-detection groups based on whether other pathogens were detected besides MP, to analyze the influence of respiratory pathogen co-detection rate on the severity of the disease. Mann-Whitney rank sum test and Chi-square test were used to compare data between independent groups. Results:A total of 298 children, 136 males and 162 females, were enrolled in this study, including 204 children in the severe group with an onset age of 7.0 (6.0, 8.0) years, and 94 children in the mild group with an onset age of 6.5 (4.0, 7.8) years. The level of C-reactive protein, D-dimer, lactic dehydrogenase (LDH) were significantly higher (10.0 (5.0, 18.0) vs. 5.0 (5.0, 7.5) mg/L, 0.6 (0.4, 1.1) vs. 0.5 (0.3, 0.6) mg/L, 337 (286, 431) vs. 314 (271, 393) U/L, Z=2.02, 2.50, 3.05, all P<0.05), and the length of hospitalization was significantly longer in the severe group compared with those in mild group (6.0 (6.0, 7.0) vs. 5.0 (4.0, 6.0) d, Z=4.37, P<0.05). The time from onset to admission in severe MPP children was significantly shorter than that in mild MPP children (6.0 (5.0, 9.5) vs. 9.0 (7.0, 13.0) d, Z=2.23, P=0.026). All patients completed the multiplex PCR test, with 142 cases (47.7%) MPP children detected with 21 pathogens including adenovirus 25 cases (8.4%), human coronavirus 23 cases (7.7%), rhinovirus 21 cases (7.0%), Streptococcus pneumoniae 21 cases (7.0%), influenza A virus 18 cases (6.0%). The pathogens with the highest detection rates in Tianjin, Shanghai, Wenzhou and Chengdu were Staphylococcus aureus at 10.7% (8/75), adenovirus at 13.0% (10/77), adenovirus at 15.3% (9/59), and both rhinovirus and Haemophilus influenzae at 11.5% (10/87) each. The multi-pathogen co-detection rate in severe MPP children was significantly higher than that in mild MPP group (52.9% (108/204) vs. 36.2% (34/94), χ2=10.62, P=0.005). Among severe MPP children, there are 89 cases in the multi-pathogen co-detection group and 73 cases in the simple MPP group. The levels of LDH, D-dimer and neutrophil counts in the multi-pathogen co-detection group were significantly higher than those in the simple MPP group (348 (284, 422) vs. 307 (270, 358) U/L, 0.8 (0.5, 1.5) vs. 0.6 (0.4, 1.0) mg/L, 4.99 (3.66, 6.89)×10 9vs. 4.06 (2.91, 5.65)×10 9/L, Z=5.17, 4.99, 6.11, all P<0.05). Conclusions:The co-detection rate of respiratory pathogens, LDH and D-dimer in children with severe MPP were higher than those with mild MPP. Among severe MPP children the stress response of children in co-detection group was more serious than that of children with simple MPP.

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