1.Genotyping of M protein gene of group A streptococcus infections among children in Xicheng District of Beijing in 2011-2024
Di QIN ; Xiaokan WEI ; Xiaowen PENG ; Xiugang GUAN ; Yanhui CHU
Journal of Public Health and Preventive Medicine 2025;36(4):32-36
Objective To understand the distribution of M protein gene (emm) of group A streptococcus (GAS) infections among children in Xicheng District of Beijing. Methods Throat swab samples from scarlet fever and pharyngeal infection cases were collected in sentinel hospitals of Xicheng District, Beijing from 2011 to 2024. GAS strains were isolated and identified, and emm gene was amplified and sequenced by PCR to determine the genotype. The differences in emm genotype between different groups were compared. Results A total of 3 130 throat swab samples were collected, and 400 GAS strains were isolated, with a positive rate of 12.78%. The highest positive rate was 19.93% in 2011. The positive rate of scarlet fever (45.71%) was higher than that of pharyngeal infection (6.14%) (P<0.001). There were 391 emm gene positive strains, and the differences in the positive rate of emm gene among different cases were statistically significant (P<0.001). A total of 7 genotypes and 27 gene subtypes were detected. Among different groups, the emm genotypes were mainly emm12 and emm1. The emm gene subtypes were mainly emm12.00 and emm1.00. Except for some years, the genotypes and their subtypes were dominated by emm12 and emm12.00, and the distribution differences of the two major genotypes and their subtypes were statistically significant from 2011 to 2019 (P<0.001). There were differences in genotypes and subtypes among different age groups (P=0.002). Conclusion The dominant types of emm genes in group A streptococcus infections among children were emm12 and emm1 in Xicheng District of Beijing from 2011 to 2024, and the dominant gene subtypes were emm12.00 and emm1.00. It is necessary to comprehensively strengthen the monitoring of the epidemic situation and genotype, timely grasp the distribution and variation of emm gene.
2.Mechanisms of Fufang Biejia Ruangan Pills Against Alcoholic Liver Disease via Regulating Liver-brain Dialogue Mediated by HMGB1-BDNF Axis
Yudong LIU ; Xiangying YAN ; Tao LI ; Chu ZHANG ; Bingbing CAI ; Zhaochen MA ; Na LIN ; Yanqiong ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(23):214-223
ObjectiveTo systematically and objectively characterize the pharmacological effects of Fufang Biejia Ruangan pills (FBRP) in the intervention of alcoholic liver disease (ALD) using acute and chronic ALD mouse models and to elucidate its molecular mechanisms. MethodFifty SPF-grade male BALB/c mice were randomly divided into the normal group, model group, and FBRP low-, medium-, and high-dose groups (9.6, 19.2, 38.4 mg·kg-1). Except for the normal group, the remaining groups were given 56° white wine by gavage to establish the acute ALD model, with samples collected after 4 weeks. Thirty SPF-grade male C57BL/6N mice were randomly divided into the normal group, model group, and FBRP medium-dose group (19.2 mg·kg-1). The chronic ALD mouse model was established using the Lieber-DeCarli method over a 10-week period. Inflammatory markers in liver tissues were assessed using hematoxylin-eosin (HE), Sirius Red, oil red O staining, and enzyme-linked immunosorbent assay (ELISA). Intoxication behaviors of each group were objectively evaluated through sobering-up time, net-catching, and pole-climbing tests. Further bioinformatics analyses based on clinical transcriptomic data were conducted to identify key targets and molecular mechanisms of FBRP in alleviating ALD through liver-brain dialogue, with experimental validation by ELISA, Western blot, and immunohistochemical staining. ResultCompared with the normal group, the levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in liver tissues of mice in the acute and chronic ALD model groups were significantly increased (P<0.05). Compared with the model group, the levels of AST and ALT in liver tissue of mice in FBRP groups were significantly decreased (P<0.05). Compared with the normal group, the time of grasping the net and climbing the pole in the acute ALD model group was significantly decreased within 4 weeks (P<0.01). Compared with the model group, the grasping and climbing time of FBRP high dose groups increased significantly within 4 weeks (P<0.05). Compared with the normal group, the expression of high mobility group protein B1 (HMGB1) protein in liver tissue and prefrontal lobe tissue of mice in the chronic ALD model group was significantly increased (P<0.01). Compared with the model group, the expression of HMGB1 protein in FBRP medium dose group was significantly decreased (P<0.05,P<0.01). Compared with the normal group, the expression of brain-derived neurotrophic factor (BDNF) protein and the release of γ-aminobutyric acid (GABA) in the prefrontal cortex of the model group were significantly decreased (P<0.01). Compared with the model group, the expression of BDNF protein and the release of GABA in the FBRP medium dose group were significantly increased (P<0.05). ConclusionThis study revealed that FBRP improved key pathological changes in ALD by modulating liver-brain dialogue mediated by the HMGB1-BDNF axis. These findings provide experimental evidence for the clinical use of FBRP in treating ALD and offer new insights for the development of ALD therapeutic agents.
3.Advances in exosomes and Alzheimer's disease
Jin-Ping LIANG ; Yu-Chen ZHU ; Sha-Sha LIU ; Yang SUN ; Bo-Yu KUANG ; Shi-Feng CHU ; Nai-Hong CHEN ; Qi-Di AI ; Yan-Tao YANG
Chinese Pharmacological Bulletin 2024;40(9):1628-1633
Exosomes represent a class of nanoscale extracellular vesicles that facilitate the exchange of genetic information among various cells.Alzheimer's disease(AD)stands as a progressive neurodegenerative disorder characterized by its subtle and advan-cing onset,representing the foremost form of dementia lacking effective therapeutic interventions.Notably,investigations have illuminated the involvement of exosomes in the pathogenesis of AD,attributing diagnostic and therapeutic significance to their role,particularly concerning exosomal microRNAs(miRNA).The miRNAs carried by exosomes serve as potential biomarkers for AD,while also exhibiting potential benefits in ameliorating cognitive dysfunction in individuals afflicted by AD.This article aims to comprehensively review the origins of exosomes(encom-passing both mesenchymal cell-derived exosomes and brain-de-rived exosomes)and their potential as therapeutic agents targe-ting AD.
4.Progress on mechanism of action and neuroprotective effects of notoginsenoside R1
Han-Long WANG ; Yang SUN ; Sha-Sha LIU ; Jun-Peng LONG ; Qian YAN ; Yu-Ting LIN ; Jin-Ping LIANG ; Shi-Feng CHU ; Yan-Tao YANG ; Qi-Di AI ; Nai-Hong CHEN
Chinese Pharmacological Bulletin 2024;40(11):2020-2025
Panax notoginseng is the dried root and rhizome of Panax notoginseng(Burk.)F.H.Chen,a perennial erect herb of the genus Ginseng of the family Wujiaceae.As a traditional Chinese medicine in our country,Panax notoginseng has a good tonic effect,and the Dictionary of Traditional Chinese Medicines has the words that Panax notoginseng is used to tonify the blood,remove the blood stasis and damage,and stop epistaxis.It can also be used to pass the blood and tonify the blood with the best efficacy,and it is the most precious one of the prescription med-icines.Eaten raw,it removes blood stasis and generates new blood,subdues swelling and stabilizes pain,stops bleeding with-out leaving stasis,and promotes blood circulation without hurting the new blood;taken cooked,it can be used to replenish and strengthen the body.Notoginsenoside R1 is a characteristic com-pound in the total saponin of Panax ginseng.In recent years,China's aging has been increasing,and the incidence of neuro-logical disorders has been increasing year by year.Meanwhile,reports on notoginsenoside R1 in the treatment of neurological disorders are increasing,and its neuroprotective effects have been exerted with precise efficacy.The purpose of this paper is to review the treatment of neurological diseases and the mecha-nism of action of notoginsenoside R1,so as to provide a certain theoretical basis for clinical use and new drug development.
5.Development of a risk prediction model for postoperative depression in patients with esophageal cancer
Yunxu ZHOU ; Jiaojiao SUN ; Jinyou LI ; Jiayu LIU ; Ying CHEN ; Jiajin DI ; Tian WANG ; Jianjun CHU ; Zhiqiang WANG
Chinese Journal of Digestion 2024;44(7):467-475
Objective:To explore the risk factors of postoperative depression in patients with esophageal cancer, and to develop a risk prediction model which providing a theoretical basis for the early detection of depression in high-risk groups by clinical staff.Methods:From September 2022 to March 2023, at the South Campus of Affiliated Hospital of Jiangnan University, 269 hospitalized patients with esophageal cancer (191 in depression group, 78 in non-depression group) were selected as the model construction set. From March to May 2023, at the South Campus of Affiliated Hospital of Jiangnan University, 78 hospitalized patients with esophageal cancer were selected as the external validation set. The patients with Beck depression inventory-Ⅱ score ≥5 and depression diagnosed by two experts (chief psychiatrists of the Department of Psychiatry of Affiliated Hospital of Jiangnan University) were considered as depression and included in the depression group, and the other patients were enrolled in the non-depression group. The general data, blood routine examination, high-sensitivity C-reactive protein (hs-CRP), blood electrolytes, blood lipids, clinical symptoms (gastroesophageal reflux, sleep disturbance, appetite, etc.) and depression score were compared between the depression group and the non-depression group. Independent sample t-test and Mann-Whitney U test were used for statistical analysis. Multiple logistic regression model was performed to analyze the independent risk factors of postoperative depression in patients with esophageal cancer, and a risk warning model was constructed. The Hosmer-Lemeshow test and receiver operating characteristic curve (ROC) were used to evaluate the fitting degree and predictive efficiency of the model, and the cross-validation method was used to verify the effectiveness of the model. Results:The incidence of postoperative depression in patients with esophageal cancer was 71.0% (191/269). The total white blood cell count, hs-CRP, blood phosphorus β 2 microglobulin and the proportion of sleep disorders of the depression group were higher than those of the non-depression group (1.3 (1.1, 5.4) ×10 9/L vs. 0.9 (0.3, 1.1) ×10 9/L, 75.8 (54.8, 102.1) mg/L vs. 60.8 (3.6, 61.5) mg/L, (1.33±0.32) mmol/L vs. (1.02±0.19) mmol/L, (2.17±0.72) mg/L vs.(2.12±0.49) mg/L, 84.3% (161/191) vs. 33.3% (26/78), and the differences were statistically significant ( Z=9.24, 7.88, t=9.24, χ2=67.87 t=1.98; all P<0.001); hemoglobin, total platelet count, high-density lipoprotein (HDL) and the proportion of poor appetite were lower than those of the non-depression group ((119.91±24.51) g/L vs. (122.09±22.97) g/L, (203.43±58.45)×10 9/L vs. (311.55±83.54)×10 9/L, (1.04±0.30) mmol/L vs. (1.43±0.23) mmol/L, 73.3% (140/191) vs. 84.6% (66/78)), and the differences were statistically significant ( t=-2.00, -8.42 and -8.48, χ2=3.96; P=0.047, <0.001, <0.001, =0.047). The results of multifactorial logistic regression model analysis showed that sleep disorder ( OR=3.976, 95% confidence interval (95% CI 1.601 to 9.872)), loss of appetite ( OR=0.271, 95% CI 0.092 to 0.791), white blood cell count ( OR=31.808, 95% CI 2.879 to 351.401), hs-CRP ( OR=1.031, 95% CI 1.017 to 1.044), platelet count ( OR=0.990, 95% CI 0.982 to 0.997), and HDL ( OR=0.017, 95% CI 0.001 to 0.242) were independent influencing factors of postoperative depression in patients with esophageal cancer. The formula of risk warning model was probability of depression=1-1/{1+ exp[1.544+ 1.380×sleep disturbance (yes=1, no=0)-1.307×loss of appetite (yes=1, no=0)-0.010×platelet count (×10 9/L)-4.063×HDL (mmol/L)+ 0.030×hs-CRP (mg/L)+ 3.460×white blood cell count (×10 9/L)]}. The results of Hosmer-Lemeshow test showed that the model has a good fit ( χ2=2.01, P=0.981), with an area under the ROC of 0.949, a sensitivity of 0.874, and a specificity of 0.872. The cross-validation of the external validation set showed that the accuracy of the risk warning model was 67.9%. Conclusion:This study is a preliminary study on the risk warning model of postoperative depression in patients with esophageal cancer, which provides a novel approach for screening depression in patients with esophageal cancer after surgery.
6.Comparison of early clinical effects between direct superior approach and posterolateral approach in hemiarthroplasty of femoral neck fracture in the elderly.
Xiang PENG ; Feng SHUANG ; Hao LI ; Yin-Chu SHAO ; Wei HU ; Ji-Chun SHAN ; Di YANG ; De-En WAN ; Wen-Bo XU
China Journal of Orthopaedics and Traumatology 2023;36(11):1021-1025
OBJECTIVE:
To compare and analyze the early clinical effect of direct superior approach(DSA) and posterior lateral approach (PLA) in hemiarthroplasty for elderly patients with femoral neck fracture.
METHODS:
The clinical data of 72 elderly patients with femoral neck fracture who underwent hemiarthroplasty from January 2020 to December 2021 were retrospectively analyzed. Among them, 36 patients were operated through minimally invasive DSA including 10 males and 26 females with an average age of (82.82±4.05) years old; the other 36 patients underwent traditional PLA including 14 males and 22 females with an average age of (82.79±3.21) years old. The perioperative related indexes and Harris scores during follow-up between two groups were compared.
RESULTS:
Comparison of operation time between two groups, (79.41±17.39) min of DSA group was shorter than(98.45±26.58) min of PLA group;incision length (8.33±2.69) cm was shorter than (11.18±1.33) cm of PLA group;intraoperative blood loss (138.46±71.58) ml was less than (173.51±87.17) ml of PLA group, initial landing time (3.04±0.95) d was earlier than (4.52±1.10) d of PLA group, hospitalization time (8.70±1.89) d was shorter than (10.67±2.35) d of PLA group(P<0.05). There was no statistical difference in Harris score between two groups before operation(P>0.05), but Harris score in DSA group was higher than that of PLA group at 1 month after operation(P<0.05), but at 12 months after operation, the difference was not statistically significant between two groups(P>0.05).
CONCLUSION
Compared with PLA, DSA is superior in clinical indexes such as operation time, intraoperative blood loss, incision length, first landing time, length of hospitalization and Harris score in the first month after operation in hemi hip replacement, and has comparative advantages in promoting early postoperative rehabilitation of elderly patients with femoral neck.
Male
;
Female
;
Humans
;
Aged
;
Aged, 80 and over
;
Blood Loss, Surgical
;
Hemiarthroplasty
;
Retrospective Studies
;
Arthroplasty, Replacement, Hip
;
Femoral Neck Fractures/surgery*
;
Treatment Outcome
7.Clinical value of plasma scaffold protein SEC16A in evaluating hepatitis B-related liver cirrhosis and hepatocellular carcinoma.
Chen DONG ; Chu Di CHANG ; Dan Dan ZHAO ; Xiao Xiao ZHANG ; Pei Lin GUO ; Yao DOU ; Su Xian ZHAO ; Yue Min NAN
Chinese Journal of Hepatology 2023;31(6):621-626
Objective: To investigate the clinical value of plasma scaffold protein SEC16A level and related models in the diagnosis of hepatitis B virus-related liver cirrhosis (HBV-LC) and hepatocellular carcinoma (HBV-HCC). Methods: Patients with HBV-LC and HBV-HCC and a healthy control group diagnosed by clinical, laboratory examination, imaging, and liver histopathology at the Third Hospital of Hebei Medical University between June 2017 and October 2021 were selected. Plasma SEC16A level was detected using an enzyme-linked immunosorbent assay (ELISA). Serum alpha-fetoprotein (AFP) was detected using an electrochemiluminescence instrument. SPSS 26.0 and MedCalc 15.0 statistical software were used to analyze the relationship between plasma SEC16A levels and the occurrence and development of liver cirrhosis and liver cancer. A sequential logistic regression model was used to analyze relevant factors. SEC16A was established through a joint diagnostic model. Receiver operating characteristic curve was used to evaluate the clinical efficacy of the model for liver cirrhosis and hepatocellular carcinoma diagnosis. Pearson correlation analysis was used to identify the influencing factors of novel diagnostic biomarkers. Results: A total of 60 cases of healthy controls, 60 cases of HBV-LC, and 52 cases of HBV-HCC were included. The average levels of plasma SEC16A were (7.41 ± 1.66) ng/ml, (10.26 ± 1.86) ng/ml, (12.79 ± 1.49) ng /ml, respectively, with P < 0.001. The sensitivity and specificity of SEC16A in the diagnosis of liver cirrhosis and hepatocellular carcinoma were 69.44% and 71.05%, and 89.36% and 88.89%, respectively. SEC16A, age, and AFP were independent risk factors for the occurrence of HBV-LC and HCC. SAA diagnostic cut-off values, sensitivity, and specificity were 26.21 and 31.46, 77.78% and 81.58%, and 87.23% and 97.22%, respectively. The sensitivity and specificity for HBV-HCC early diagnosis were 80.95% and 97.22%, respectively. Pearson correlation analysis showed that AFP level was positively correlated with alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBil), and γ-glutamyltransferase (GGT) with P < 0.01, while the serum SEC16A level was only slightly positively correlated with ALT and AST in the liver cirrhosis group (r = 0.268 and 0.260, respectively, P < 0.05). Conclusion: Plasma SEC16A can be used as a diagnostic marker for hepatitis B-related liver cirrhosis and hepatocellular carcinoma. SEC16A, combined with age and the AFP diagnostic model with SAA, can significantly improve the rate of HBV-LC and HBV-HCC early diagnosis. Additionally, its application is helpful for the diagnosis and differential diagnosis of the progression of HBV-related diseases.
Humans
;
Carcinoma, Hepatocellular/pathology*
;
Liver Neoplasms/pathology*
;
alpha-Fetoproteins/metabolism*
;
Endoplasmic Reticulum/metabolism*
;
Golgi Apparatus/metabolism*
;
Vesicular Transport Proteins
;
Liver Cirrhosis/complications*
;
Hepatitis B/complications*
;
ROC Curve
;
Hepatitis B virus/metabolism*
;
Biomarkers, Tumor
8.Effect of positive psychological group training in epilepsy patients
Guangyun SONG ; Ruiqin SONG ; Xiumei HOU ; Pinghua CHU ; Di WANG
Chinese Journal of Modern Nursing 2023;29(19):2621-2624
Objective:To explore the effect of positive psychological group training in epilepsy patients.Methods:From January to December 2020, a total of 60 epilepsy patients in Department of Neurology in Shandong Daizhuang Hospital were selected as the research objects using the convenience sampling method, and were randomly divided into the observation group and the control group by random number table, with 30 cases each. The control group received routine nursing, and the observation group received positive psychological group training on the basis of the control group, lasting for 8 weeks. The scores of Self-Esteem Scale, the Feelings of Inadequacy Scale, Shame Scale and General Perceived Self-Efficacy Scale were compared between the two groups.Results:After intervention, the behavioral shame and body shame scores of the observation group were lower than those of the control group, and the differences were statistically significant ( P<0.01). After intervention, the scores of Self-Esteem Scale, the Feelings of Inadequacy Scale and General Perceived Self-Efficacy Scale of the observation group were higher than those of the control group, and the differences were statistically significant ( P<0.01) . Conclusions:Positive psychological group training can improve epilepsy patients' inferiority, self-esteem and self-efficacy, reduce sense of shame, which is worthy of clinical application.
9.68Ga-PSMA ligand PET/CT integrating indocyanine green-guided salvage lymph node dissection for lymph node metastasis after radical prostatectomy.
Teng-Cheng LI ; Yu WANG ; Chu-Tian XIAO ; Ming-Zhao LI ; Xiao-Peng LIU ; Wen-Tao HUANG ; Liao-Yuan LI ; Ke LI ; Jin-Ming DI ; Xing-Qiao WEN ; Xin GAO
Asian Journal of Andrology 2022;24(1):97-101
To efficiently remove all recurrent lymph nodes (rLNs) and minimize complications, we developed a combination approach that consisted of 68Gallium prostate-specific membrane antigen (PSMA) ligand positron emission tomography (PET)/computed tomography (CT) and integrated indocyanine green (ICG)-guided salvage lymph node dissection (sLND) for rLNs after radical prostatectomy (RP). Nineteen patients were enrolled to receive such treatment. 68Ga-PSMA ligand PET/CT was used to identify rLNs, and 5 mg of ICG was injected into the space between the rectum and bladder before surgery. Fluorescent laparoscopy was used to perform sLND. While extensive LN dissection was performed at level I, another 5 mg of ICG was injected via the intravenous route to intensify the fluorescent signal, and laparoscopy was introduced to intensively target stained LNs along levels I and II, specifically around suspicious LNs, with 68Ga-PSMA ligand PET/CT. Next, both lateral peritonea were exposed longitudinally to facilitate the removal of fluorescently stained LNs at levels III and IV. In total, pathological analysis confirmed that 42 nodes were rLNs. Among 145 positive LNs stained with ICG, 24 suspicious LNs identified with 68Ga-PSMA ligand PET/CT were included. The sensitivity and specificity of 68Ga-PSMA ligand PET/CT for detecting rLNs were 42.9% and 96.6%, respectively. For ICG, the sensitivity was 92.8% and the specificity was 39.1%. At a median follow-up of 15 (interquartile range [IQR]: 6-31) months, 15 patients experienced complete biochemical remission (BR, prostate-specific antigen [PSA] <0.2 ng ml-1), and 4 patients had a decline in the PSA level, but it remained >0.2 ng ml-1. Therefore, 68Ga-PSMA ligand PET/CT integrating ICG-guided sLND provides efficient sLND with few complications for patients with rLNs after RP.
Gallium Isotopes
;
Gallium Radioisotopes
;
Humans
;
Indocyanine Green
;
Ligands
;
Lymph Node Excision
;
Lymphatic Metastasis/diagnostic imaging*
;
Male
;
Neoplasm Recurrence, Local/surgery*
;
Positron Emission Tomography Computed Tomography
;
Prostate
;
Prostatectomy
;
Prostatic Neoplasms/surgery*
;
Salvage Therapy
10.A cyclodextrin-based nanoformulation achieves co-delivery of ginsenoside Rg3 and quercetin for chemo-immunotherapy in colorectal cancer.
Dandan SUN ; Yifang ZOU ; Liu SONG ; Shulan HAN ; Hao YANG ; Di CHU ; Yun DAI ; Jie MA ; Caitriona M O'DRISCOLL ; Zhuo YU ; Jianfeng GUO
Acta Pharmaceutica Sinica B 2022;12(1):378-393
The immune checkpoint blockade therapy has profoundly revolutionized the field of cancer immunotherapy. However, despite great promise for a variety of cancers, the efficacy of immune checkpoint inhibitors is still low in colorectal cancer (CRC). This is mainly due to the immunosuppressive feature of the tumor microenvironment (TME). Emerging evidence reveals that certain chemotherapeutic drugs induce immunogenic cell death (ICD), demonstrating great potential for remodeling the immunosuppressive TME. In this study, the potential of ginsenoside Rg3 (Rg3) as an ICD inducer against CRC cells was confirmed using in vitro and in vivo experimental approaches. The ICD efficacy of Rg3 could be significantly enhanced by quercetin (QTN) that elicited reactive oxygen species (ROS). To ameliorate in vivo delivery barriers associated with chemotherapeutic drugs, a folate (FA)-targeted polyethylene glycol (PEG)-modified amphiphilic cyclodextrin nanoparticle (NP) was developed for co-encapsulation of Rg3 and QTN. The resultant nanoformulation (CD-PEG-FA.Rg3.QTN) significantly prolonged blood circulation and enhanced tumor targeting in an orthotopic CRC mouse model, resulting in the conversion of immunosuppressive TME. Furthermore, the CD-PEG-FA.Rg3.QTN achieved significantly longer survival of animals in combination with Anti-PD-L1. The study provides a promising strategy for the treatment of CRC.


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