1.Mechanism of Jiedu Xiaoying Patch intervening rats with Hashimoto's thyroiditis
Fei XU ; Fengjun QI ; Huimin LI ; Dan LI ; Xinyue WU ; Xiaojing ZHANG ; Lisha WANG ; Yihui SONG ; Xin XING
International Journal of Traditional Chinese Medicine 2025;47(7):927-931
Objective:To investigate the effect and mechanism of Jiedu Xiaoying Patch in rats with Hashimoto's thyroiditis (HT).Methods:Totally 32 rats were randomly divided into a blank group of 8 rats and a model group of 24 rats. The HT rat model was prepared by freely drinking 0.064% sodium iodide solution in the modeling module. 24 successfully modeled rats were randomly divided into model group, selenium yeast group, and patch group, with 8 rats in each group. Starting from the 9th week, the application group applied Jiedu Xiaoying Patch to the surface projection area of the thyroid gland in the neck of rats for 6 hours, once a day, for a total of 6 weeks; the selenium yeast group was orally administered with 21 μg/ml selenium yeast solution at a dose of 0.5 ml/100 g, while the blank group, model group, and patch group were orally administered with equal volumes of physiological saline solution once a day for a total of 6 weeks. The levels of TGAb,TPOAb, Sema 5A, and IL-17A in rat serum were detected by ELISA. The changes of thyroid tissue was observed with HE staining. The relative expression levels of plexin-A1 and plexin-B3 were determined through RT-PCR.Results:Compared with the model group, the levels of TPOAb, TGAb, Sema 5A, and IL-17A decreased ( P<0.05), and the expressions of plexin-A1 and plexin-B3 decreased in the selenium yeast group and the patch group ( P<0.05). The thyroid follicles in the model group were severely damaged, with a large number of lymphocytes infiltrating the interstices; the thyroid follicular structure of the selenium yeast group was relatively intact, and lymphocyte infiltration was reduced compared to the model group. The thyroid follicular structure of the patch group was basically intact, with a small amount of lymphocyte infiltration observed. Conclusion:Jiedu Xiaoying Patch can significantly reduce the levels of TPOAb and TGAb in HT rats. The mechanism may be related to reducing the content of Sema 5A, inhibiting the expressions of receptors plexin-A1 and plexin-B3, reducing the production of inflammatory cytokines such as IL-17A, and inhibiting immune and inflammatory responses.
2.Analysis of cervical cancer screening results in Tianjin from 2018 to 2023
Fengjun LYU ; Wei DONG ; Shuang ZHANG ; Xiaojing WANG ; Shaohan LI ; Peng WANG
Chinese Journal of Obstetrics and Gynecology 2025;60(7):541-548
Objective:To review and analyze the results of cervical cancer screening for women aged 30-65 years in Tianjin from 2018—2023, and to explore the choice of cervical cancer screening strategies.Methods:The results of free cervical cancer screening in Tianjin from January 2018 to December 2023 were collected and divided into two periods: group A [2018—2020; screening programs included cervical cytology, Thinprep cytologic test (TCT), and human papillomavirus (HPV) DNA+TCT combined screening] and group B (2021—2023; the screening scheme of HPV E6/E7 mRNA primary screening and TCT diversion, referred to as “HPV E6/E7 mRNA primary screening”) according to the policy changes, and according to the primary screening method of cervical cancer, it was divided into four methods: cervical smear primary screening, TCT primary screening, HPV DNA+TCT combined primary screening and HPV E6/E7 mRNA primary screening. Cervical cancer and precancerous lesion detection rate, cervical cancer early diagnosis rate were analyzed.Results:(1) A total of 1 634 155 women of eligible age were screened, and the detection rate of cervical cancer and precancerous lesion was 216.3/100 000 (3 535/1 634 155), among which the detection rate of precancerous lesion was 200.3/100 000 (3 274/1 634 155) and cervical cancer was 16.0/100 000 (261/1 634 155). (2) The cervical cancer and precancerous lesion detection rate and cancer early diagnosis rate in group B were significantly higher than those in group A [480.3/100 000 (2 132/443 924) vs 117.9/100 000 (1 403/1 190 231), 97.56% (2 080/2 132) vs 92.37% (1 296/1 403); both P<0.001]. (3) The detection rates of cervical cancer and precancerous lesions in women who underwent initial screening with cervical cytology, TCT, HPV DNA+TCT combined screening, and HPV E6/E7 mRNA screening were 106.8/100 000 (10 980/1 028 227), 167.7/100 000 (190/113 319), 236.2/100 000(115/48 685) and 480.3/100 000 (2 132/443 924), respectively. HPV E6/E7 mRNA primary screening had the highest cervical cancer and precancerous lesion detection rate among the four screening methods ( χ2=2 017.59, P<0.001). Conclusion:After 2021, the cervical cancer screening method of HPV E6/E7 mRNA primary screening and TCT triage adopted in Tianjin is suitable for general screening of large populations and is an effective method for initial screening of cervical cancer.
3.Research progress of digital storytelling in clinical care
Shuicheng BU ; Li TANG ; Fang YU ; Fen LEI ; Fengjun LUO ; Cuijie CHEN
Modern Hospital 2025;25(3):451-458,462
Digital storytelling,as an emerging form of communication and therapy,is subtly transforming the landscape of clinical care.This paper systematically introduces the historical evolution,fundamental methods,and clinical applications of digital storytelling,while exploring and analyzing its effects on various patient groups.A comprehensive evaluation index system has been developed,with the aim of providing references and evidence for the broader application and development of digital sto-rytelling in clinical care,along with recommendations for improvement to address existing limitations.
4.Research progress of digital storytelling in clinical care
Shuicheng BU ; Li TANG ; Fang YU ; Fen LEI ; Fengjun LUO ; Cuijie CHEN
Modern Hospital 2025;25(3):451-458,462
Digital storytelling,as an emerging form of communication and therapy,is subtly transforming the landscape of clinical care.This paper systematically introduces the historical evolution,fundamental methods,and clinical applications of digital storytelling,while exploring and analyzing its effects on various patient groups.A comprehensive evaluation index system has been developed,with the aim of providing references and evidence for the broader application and development of digital sto-rytelling in clinical care,along with recommendations for improvement to address existing limitations.
5.Analysis of cervical cancer screening results in Tianjin from 2018 to 2023
Fengjun LYU ; Wei DONG ; Shuang ZHANG ; Xiaojing WANG ; Shaohan LI ; Peng WANG
Chinese Journal of Obstetrics and Gynecology 2025;60(7):541-548
Objective:To review and analyze the results of cervical cancer screening for women aged 30-65 years in Tianjin from 2018—2023, and to explore the choice of cervical cancer screening strategies.Methods:The results of free cervical cancer screening in Tianjin from January 2018 to December 2023 were collected and divided into two periods: group A [2018—2020; screening programs included cervical cytology, Thinprep cytologic test (TCT), and human papillomavirus (HPV) DNA+TCT combined screening] and group B (2021—2023; the screening scheme of HPV E6/E7 mRNA primary screening and TCT diversion, referred to as “HPV E6/E7 mRNA primary screening”) according to the policy changes, and according to the primary screening method of cervical cancer, it was divided into four methods: cervical smear primary screening, TCT primary screening, HPV DNA+TCT combined primary screening and HPV E6/E7 mRNA primary screening. Cervical cancer and precancerous lesion detection rate, cervical cancer early diagnosis rate were analyzed.Results:(1) A total of 1 634 155 women of eligible age were screened, and the detection rate of cervical cancer and precancerous lesion was 216.3/100 000 (3 535/1 634 155), among which the detection rate of precancerous lesion was 200.3/100 000 (3 274/1 634 155) and cervical cancer was 16.0/100 000 (261/1 634 155). (2) The cervical cancer and precancerous lesion detection rate and cancer early diagnosis rate in group B were significantly higher than those in group A [480.3/100 000 (2 132/443 924) vs 117.9/100 000 (1 403/1 190 231), 97.56% (2 080/2 132) vs 92.37% (1 296/1 403); both P<0.001]. (3) The detection rates of cervical cancer and precancerous lesions in women who underwent initial screening with cervical cytology, TCT, HPV DNA+TCT combined screening, and HPV E6/E7 mRNA screening were 106.8/100 000 (10 980/1 028 227), 167.7/100 000 (190/113 319), 236.2/100 000(115/48 685) and 480.3/100 000 (2 132/443 924), respectively. HPV E6/E7 mRNA primary screening had the highest cervical cancer and precancerous lesion detection rate among the four screening methods ( χ2=2 017.59, P<0.001). Conclusion:After 2021, the cervical cancer screening method of HPV E6/E7 mRNA primary screening and TCT triage adopted in Tianjin is suitable for general screening of large populations and is an effective method for initial screening of cervical cancer.
6.Effects of M2-type macrophages and GKT137831 on oxidative stress in hepatic stellate cells
Ruge SUN ; Jing LI ; Fengjun SHEN
Chinese Journal of Hepatology 2024;32(3):201-207
Objective:To investigate the effects of reduced nicotinamide adenine dinucleotide phosphooxidase 4 (NOX4) inhibitors GKT137831 and M2-type macrophages on oxidative stress markers NOX4, nuclear factor E2-related factor 2 (Nrf2) and heme oxygenase 1 (HO-1) in the rat hepatic stellate cell line (HSC-T6).Methods:Rat bone marrow macrophages were extracted and induced using interleukin (IL)-4 to differentiate them into M2 phenotype macrophages. HSC-T6 activation was performed with 5 μg/L transforming growth factor β1 (TGF-β1). The proliferation condition of HSC-T6 cells stimulated by the NOX4 inhibitor GKT137831 at a concentration gradient of 5 to 80 μmol/L after 48 hours was detected using the Cell Counting Kit-8 (CCK-8) assay. The optimal drug concentration was chosen and divided into an HSC co-culture group (the control group) and five experimental groups: the TGF-β1 stimulation group, the TGF-β1 +GKT137831 stimulation group, the M2-type macrophage + HSC co-culture group, the M2-type macrophage +TGF-β1 stimulation group, and the M2-type + TGF-β1 + GKT137831 stimulation group. Reactive oxygen species (ROS) production level was detected in each cell using the DCFH-DA probe method. NOX4, α-smooth muscle actin (α-SMA), Nrf2, and HO-1 levels in each group of HSC cells were detected using the qRT-PCR method and the Western blot method. The t-test was used to compare the two groups. The one-way ANOVA method was used to compare multiple groups. Results:Intracellular ROS increased significantly following TGF-β1 stimulation. ROS relative levels in each cell group were 1.03±0.11, 3.88±0.07, 2.90±0.08, 0.99±0.06, 3.30±0.05, 2.21±0.11, F ?=?686.1, P ?=?0.001, respectively. The mRNA and protein expressions of NOX4, α-SMA, Nrf2, and HO-1 were significantly increased ( P ?0.05). After the addition of GKT137831, ROS, and NOX4, α-SMA mRNA and protein expression were comparatively decreased in the TGF-β1 stimulation group ( P ?0.05), while mRNA and protein expressions of Nrf2 and HO-1 were increased ( P ?0.05). The expression of ROS and NOX4, as well as α-SMA mRNA and protein, produced by HSC were significantly decreased in the co-culture group compared to the single culture group after TGF-β1 stimulation ( P ?0.05). After the addition of GKT137831, ROS, NOX4, α-SMA mRNA, and protein expression were further reduced in the co-culture group compared with the single culture group ( P ?0.05), while the mRNA and protein expression of Nrf2 and HO-1 were further increased ( P ?0.05). Conclusion:NOX4 inhibitor GKT137831 can reduce RO, NOX4, and α-SMA levels while increasing Nrf2 and HO-1 levels in hepatic stellate cells. After M2-type macrophage co-culture, GKT137831 assists in lowering ROS, NOX4, and α-SMA levels while accelerating Nrf2 and HO-1 levels in hepatic stellate cells, which regulates the balance between oxidative stress and anti-oxidative stress systems, thereby antagonizing the fibrosis process.
7.Newcastle disease virus suppresses antigen presentation via inhibiting IL-12 expression in dendritic cells
NAN FULONG ; NAN WENLONG ; YAN XIN ; WANG HUI ; JIANG SHASHA ; ZHANG SHUYUN ; YU ZHONGJIE ; ZHANG XIANJUAN ; LIU FENGJUN ; LI JUN ; ZHOU XIAOQIONG ; NIU DELEI ; LI YIQUAN ; WANG WEI ; SHI NING ; JIN NINGYI ; XIE CHANGZHAN ; CUI XIAONI ; ZHANG HE ; WANG BIN ; LU HUIJUN
Journal of Zhejiang University. Science. B 2024;25(3):254-270,后插1-后插4
As a potential vectored vaccine,Newcastle disease virus(NDV)has been subject to various studies for vaccine development,while relatively little research has outlined the immunomodulatory effect of the virus in antigen presentation.To elucidate the key inhibitory factor in regulating the interaction of infected dendritic cells(DCs)and T cells,DCs were pretreated with the NDV vaccine strain LaSota as an inhibitor and stimulated with lipopolysaccharide(LPS)for further detection by enzyme-linked immunosorbent assay(ELISA),flow cytometry,immunoblotting,and quantitative real-time polymerase chain reaction(qRT-PCR).The results revealed that NDV infection resulted in the inhibition of interleukin(IL)-12p40 in DCs through a p38 mitogen-activated protein kinase(MAPK)-dependent manner,thus inhibiting the synthesis of IL-12p70,leading to the reduction in T cell proliferation and the secretion of interferon-γ(IFN-γ),tumor necrosis factor-α(TNF-α),and IL-6 induced by DCs.Consequently,downregulated cytokines accelerated the infection and viral transmission from DCs to T cells.Furthermore,several other strains of NDV also exhibited inhibitory activity.The current study reveals that NDV can modulate the intensity of the innate?adaptive immune cell crosstalk critically toward viral invasion improvement,highlighting a novel mechanism of virus-induced immunosuppression and providing new perspectives on the improvement of NDV-vectored vaccine.
8.Atypical memory B cells in children with frequently relapsing nephrotic syndrome
Ting YANG ; Wenjun YUAN ; Nana LI ; Rui SUN ; Yafei ZHUANG ; Jin CHENG ; Fengjun GUAN
International Journal of Laboratory Medicine 2024;45(19):2415-2419
Objective To observe the distribution of atypical memory B cells in peripheral blood of children with frequently relapsing nephrotic syndrome(FRNS).Methods A total of 60 children with primary ne-phrotic syndrome(PNS)admitted to the hospital from October 2020 to March 2023 were selected as the re-search objects.According to the response to glucocorticoid(GC),they were divided into non-frequently relap-sing nephrotic syndrome(NFRNS)group(25 cases)and FRNS group(35 cases).A total of 20 age-and gen-der-matched healthy children were enrolled as the control group.The changes of atypical memory B cells in each group before and after GC treatment were compared,and the correlation between the changes and clinical data was analyzed.Results Before GC treatment,The percentages of total B cells(CD19+CD20+),total memory B cells(CD19+CD20+CD27+),resting memory B cells(CD19+CD20+CD21+CD27+)and atypical memory B cells(CD19+CD20+CD21-CD27-)in FRNS group and NFRNS group were significantly higher than those in control group.And the FRNS group was significantly higher than the NFRNS group(P<0.05).After GC treatment,the percentages of total B cells,total memory B cells,resting memory B cells,acti-vated memory B cells(CD19+CD20+CD21-CD27+)and atypical memory B cells in FRNS group and NFRNS group were lower than those before GC treatment(P<0.05).The FRNS group had a significantly higher pro-portion of atypical memory B cells than the NFRNS group and the control group(P<0.05).Before GC treat-ment,the 24 h urinary protein in FRNS group and NFRNS group were higher than those in control group,and the levels of immunoglobulin G and albumin were lower than those in control group.The 24 h urinary protein in FRNS group was significantly higher than that in NFRNS group(P<0.05).Before GC treatment,there was a positive correlation between 24 h urinary protein and the proportion of atypical memory B cells in FRNS group(P<0.05).Conclusion There is abnormal distribution of atypical memory B cells in peripheral blood of FRNS children.The increase of atypical memory B cells can be used as a marker of recurrence of FRNS af-ter GC treatment.
9.Efficacy and safety of first-line anti-tuberculosis drugs combined with Linezolid for the treatment of pediatric tuberculous meningitis in real-word practice
Ting AI ; Li JIANG ; Quanbo LIU ; Yuan BAI ; Ya YANG ; Fengjun SUN ; Yuntao JIA ; Yujiao ZHOU ; Zhenzhen ZHANG
Chinese Journal of Pediatrics 2024;62(8):715-720
Objective:To evaluate the efficacy and safety of first-line anti-tuberculosis (TB) drugs combined with linezolid in treatment of children with tuberculous meningitis (TBM).Methods:A retrospective cohort study design was performed . Eight-nine Children diagnosed as TBM during January 1 st 2016 and December 31 st 2023 in Department of Infectious Disease, Children′s Hospital of Chongqing Medical University were enrolled in the study. According to different treatment regimens, children were divided into a group of first-line anti-tuberculous drugs (isoniazid, rifampicin, pyrazinamide, ethambutol (HRZE)) and a group of HRZE and linezolid combination (HRZEL). The efficacy and safety of the 2 regimens were compared and the relationship between linezolid drug concentration and adverse reactions were analyzed. Comparisons between groups were performed using χ2 test and Mann-Whitney U test. Results:The 89 children with TBM included 53 males and 36 females with an onset age of 4.6 (1.4, 9.6) years. There were 27 cases in the HZREL group and 62 cases in the HRZE group. Before treatment, positive rate of interferon-gamma release assays (IGRA) in HRZEL group was lower than that in HRZE group (64% (16/25) vs.92% (55/60), χ2=9.82, P<0.05), but protein level of cerebrospinal fluid (CSF) was higher than that in HRZE group (1.2 (1.0, 2.0) vs.0.8 (0.4,1.4) g/L, Z=0.32, P<0.05). By the end of the intensive phase, there were no significant differences of rates of CSF improvement and etiology negativity between HRZEL group and HRZE group (both P>0.05).The 44 TBM children with high CSF protein (>1 g/L) included 25 males and 19 females with an onset age of 6.7 (3.0, 11.8) years. There were 21 cases in the HZREL group and 23 cases in the HRZE group accordingly. Before treatment, there were no significant differences of positive rate of IGRA test and CSF protein level between the 2 groups (62% (13/21) vs. 87% (20/23), 1.7 (1.1, 2.2) vs. 1.5 (1.2, 1.9) g/L, χ2=3.67, Z=0.23, both P>0.05). There were no significant differences in CSF indicators, etiology negativity or imaging remission between the two groups by the end of intensive phase (all P>0.05). Higher frequencies of granulocytopenia, gastrointestinal symptoms as well as withdrawal or change of drugs were found in HRZEL group when compared to those in HRZE group (44% (12/27) vs. 19% (12/62), 7% (2/27) vs. 0, 33% (9/27) vs. 3% (2/62), χ2=6.01, 4.70, 15.74, all P<0.05). Conclusions:The efficacy of HRZEL regimen is similar to conventional HRZE regimen in children with TBM, but with higher adverse effect. Prudentially evaluating the pros and cons of linezolid in the usage of drug-susceptible TB and carefully monitoring of linezolid associated adverse effects is suggested.
10.Recombinant human endostatin-induced toxic epidermal necrolysis
Jinfeng LI ; Jia HOU ; Xiaojin MIAO ; Quan WANG ; Fengjun LI ; Yuan ZHANG
Adverse Drug Reactions Journal 2022;24(3):166-168
A 59-year-old male patient received targeted drug recombinant human endostatin injection 15 mg intravenously once daily for 14 days for poorly differentiated adenocarcinoma of lung with brain metastasis. On the 17th day after drug withdrawal, erythema and pruritus appeared on the neck and chest, and then the erythema quickly spread to the whole body, with blisters and extensive epidermal exfoliation, accompanied by pruritus, pain, and mild fever. Toxic epidermal necrolysis caused by recombinant human endostatin was considered. High-dose of glucocorticoid and human immunoglobulin were given and 2 weeks later, the skin lesions healed basically.

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