1.Eficacy and safety of washed red blood cells and white suspended red blood cells in the treatment of autoimmune hemolytic anemia: a meta-analysis
Wenda FU ; Hua WEI ; Dan LI ; Longfei YANG
Chinese Journal of Blood Transfusion 2025;38(2):284-290
[Objective] To systematically evaluate the therapeutic effect of washed red blood cells and white suspended red blood cells on patients with autoimmune hemolytic anemia, and to provide reference for their clinical treatment. [Methods] CNKI, Wanfang, VIP, PubMed, Embase, Cochrane Library and other databases from the establishment of the database to August 2024 were searched, including the randomized controlled trials of washed red blood cells and white suspended red blood cells in the treatment of autoimmune hemolytic anemia that met the requirements. After literature screening, data extraction and quality evaluation, meta-analysis was performed using Review manager 5.3 software and Stata 15.1 software to analyze the therapeutic effect of blood transfusion in the primary outcome, hematological indicators (Hb, Ret, RBC, and TBIL) of the two groups after blood transfusion and the occurrence of adverse blood transfusion reactions. [Results] After screening, 10 literatures meeting the criteria were retrieved, and a total of 753 patients with autoimmune hemolytic anemia were treated with washed red blood cell infusion in the observation group and white suspended red blood cell infusion in the control group. Meta-analysis suggested that there was no significant difference in the therapeutic effect of transfusion between patients who received washed red cells and those received white suspended red cells[SMD=1.16, 95%CI (0.87, 1.54), P>0.05]. The hematological indexes of the two groups after transfusion (Hb [SMD=0.04, 95%CI (-0.14, 0.22), P>0.05]、Ret[SMD=-0.15, 95%CI (-0.34, 0.03), P>0.05]、RBC[SMD=0.08, 95%CI (-0.10, 0.26), P>0.05] and TBIL [SMD=-0.02, 95%CI (-0.18, 0.15), P>0.05]) and the incidence of transfusion adverse reactions[SMD=0.8, 95%CI (0.47, 1.39), P>0.05] were not significantly different. [Conclusion] Based on the current study, the efficacy and safety of infusion of washed red blood cells and white suspended red blood cells are comparable in patients with autoimmune hemolytic anemia. However, considering the simple preparation process of washed red blood cells and the low price, infusion of washed red blood cells is recommended for patients with autoimmune hemolytic anemia.
2.Analysis on prevalence of chronic kidney disease in adults in Qingdao, 2019-2020
Longfei QIU ; Yuanyuan ZHAO ; Hua ZHANG ; Xiaojia XUE ; Yang ZHAO ; Yaoyao XU ; Haiping DUAN
Chinese Journal of Epidemiology 2024;45(5):694-699
Objective:To understand the prevalence of chronic kidney disease (CKD) in adults in Qingdao.Methods:A multi-stage stratified random sampling method was used to select 6 240 local residents aged ≥18 years in Qingdao as study subjects from May 2019 to September 2020, the demographic data of the study subjects were collected by face-to-face survey method. The prevalence of CKD in adults in Qingdao were analyzed using software SPSS 25.0.Results:A total of 5 996 adults in Qingdao were included in this study. The overall prevalence rate of CKD in the adults was 8.22%. The prevalence rates of CKD in men and women were 7.70% and 8.74%, respectively. The prevalence rate of CKD was 10.28% in urban residents and 7.25% in rural residents, the differences in the prevalence of CKD among different age, educational level and marital status groups were significant ( P<0.001). The prevalence of CKD tended to increase with age and decrease with the increase of education level. Conclusions:The prevalence of CKD in adults of Qingdao was relatively high. It is necessary to actively carry out the early prevention and treatment of CKD and strengthen the screening and prevention of CKD to reduce the incidence and slow development of CKD.
3.Practice and implications of the CACA guidelines in medical education reform
Niping QIN ; Longfei WO ; Zhiping YANG ; Xing FAN
Chinese Journal of Medical Education Research 2024;23(9):1238-1242
The China Anti-Cancer Association (CACA) Guidelines are the first set of guidelines developed for the holistic integrative management of cancers in China. An "on-campus CACA Guidelines" event was initiated by the China Anti-Cancer Association and numerous experts in medical education in February 2023. This event was aimed to integrate the key points and practical application of the guidelines into medical education and to foster high-caliber talents through revised educational materials, innovative teaching approaches, and enhanced hands-on training. The "on-campus CACA Guidelines" event took place in 222 medical schools nationwide and received positive responses from all participating schools. The CACA guidelines were incorporated into teaching by updating the curriculum, improving teacher training, and establishing facilities for practical training. The incorporation of the CACA guidelines has effectively improved teacher capabilities, streamlined academic evaluation, promoted a positive academic environment, and strengthened students' practical skills. These guidelines provide key insights and directions for medical education reform in China.
4.Research progress in animal models of delirium and their evaluation methods
Xiaotong YANG ; Longfei GUO ; Li CHEN ; Wenjuan WANG ; Yinzhi ZHAO ; Yuan YUAN
Acta Laboratorium Animalis Scientia Sinica 2024;32(10):1339-1351
Delirium is an acute brain dysfunction syndrome characterized by confusion and difficulty concentrating,which mainly affects intensive care unit patients and elderly inpatients.Treatment is expensive and may also lead to increased risks of serious complications and death.The complex etiology and unknown pathological mechanisms of delirium mean that clinical drug treatment is largely ineffective.Animal models therefore provide a powerful tool to help understand the mechanism of delirium,screen new drugs,and study potential intervention measures.We review experimental research related to delirium animal models worldwide,and summarize the latest progress in the construction and evaluation of these models from the aspects of animal selection,model construction method,and model evaluation,to provide a reference for further experimental research based on delirium animal models.
5.Analysis on Difference Between Ancient Decocting Methods and Modern Decocting Methods of Yihuangtang
Yanqiu WU ; Yuling LIU ; Xiuqing WANG ; Longfei LIN ; Anhui YANG ; Yingying ZHOU ; Hui LI
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(3):152-159
ObjectiveTo explore the differences between the ancient decocting methods and modern decocting method of Yihuangtang by taking the dry extract rate, the content of active ingredients and the fingerprint information as indicators, so as to provide reference for the preparation of benchmark samples and the development of compound preparations of this famous classical formula. MethodAccording to the three decocting methods recorded in Paozhi Dafa and Jianming Yigou and Management Specifications of Traditional Chinese Medicine Decoction Chambers in Medical Institutions, the Yihuangtang was decocted respectively. The polysaccharide content in the samples was determined by ultraviolet spectrophotometer (UV) at 488 nm, and the contents of alkaloids (berberine hydrochloride, phellodendrine chloride and magnoflorine) in the samples and their fingerprint profiles were determined by high performance liquid chromatography (HPLC), and the dry extract rate was combined to compare the differences of the three decocting methods of Yihuangtang. Among them, the fingerprint was gradient eluted with acetonitrile (A) -0.1% phosphoric acid aqueous solution (B) as mobile phase (0-10 min, 5%-8%A; 10-35 min, 8%A; 35-45 min, 8%-12% A; 45-75 min, 12%-17%A; 75-105 min, 17%-35%A; 105-110 min, 35%-100%A; 110-112 min, 100%-5%A; 112-122 min, 5%A), and the detection wavelength was 230 nm. ResultWhen the decoction was carried out according to the method described in Paozhi Dafa, the content of polysaccharides was higher than that of the modern decocting method and the method described in Jianming Yigou. However, the contents of berberine hydrochloride, phellodendrine chloride and magnoflorine were the highest in the modern decocting method. Meanwhile, the number of peaks in fingerprint of the samples prepared by the three decocting methods was basically the same, and 13 common peaks were matched, and the three common peaks of berberine hydrochloride, phellodendrine chloride and magnoflorine were identified. However, the relative peak areas of the common peaks in the fingerprint of the samples prepared by the three decocting methods varied greatly, suggesting that there were differences in the extracting effects of different decocting methods. In addition, there were also differences in the dry extract rate among the three decocting methods of Yihuangtang, and the highest value was obtained by decocting the samples according to the method recorded in Paozhi Dafa. ConclusionDecocting method can affect the dry extract rate, fingerprint information and active ingredient content of Yihuangtang, among which the modern decocting method is conducive to the extraction of alkaloids and the preparation transformation of this famous classical formula, and it is recommended to determine its preparation process by optimizing the modern decocting method.
6.LRG1 inhibits hepatic macrophage activation by enhancing TGF-β1 signaling to alleviate MAFLD in mice.
Longfei XU ; Jing HAN ; Zhe YANG ; Yanping YANG ; Jinhui CHEN ; Xijun WU ; Qi WANG ; Yan HONG
Journal of Southern Medical University 2023;43(7):1164-1171
OBJECTIVE:
To explore the effect of leucine-rich α-2-glycoprotein (LRG1) derived from hepatocytes on activation of hepatic M1 Kupffer cells.
METHODS:
A metabolic dysfunction-associated fatty liver disease (MAFLD) model was established in BALB/c mice by high-fat diet (HFD) feeding for 16 weeks. Oleic acid was used to induce steatosis in primary cultures of mouse hepatocytes. The mRNA and protein expressions of LRG1 in mouse liver tissues and hepatocytes were detected by real-time PCR and Western blotting. Primary hepatic macrophages were stimulated with the conditioned medium (CM) from steatotic hepatocyte along with LRG1 or transforming growth factor-β1 (TGF-β1), or both for 24 h, and the expression levels of inducible nitric oxide synthase (iNOS) was detected with Western botting, and the mRNA expressions of iNOS, chemokine ligand 1 (CXCL-1) and interleukin-1β (IL-1β) were measured by RT-PCR. The MAFLD mice were injected with LRG1 (n=6), TGF-β1 (n=6), or both (n=6) through the caudal vein, and the live tissues were collected for HE staining and immumohistochemical detection of F4/80 expression; the mRNA expressions of iNOS, CXCL-1 and IL-1β in liver tissues were detected using RT-PCR.
RESULTS:
The mRNA and protein expression levels of LRG1 were significantly downregulated in the liver tissues of MAFLD mice and steatotic hepatocytes (P < 0.05). Treatment of the hepatic macrophages with CM from steatosis hepatocytes significantly enhanced the mRNA expression levels of iNOS, CXCL-1 and IL-1β, and these changes were significantly inhibited by the combined treatment with TGF-β1 and LRG1 (P < 0.05). In MAFLD mice, injections with either LRG1 or TGF-β1 alone reduced hepatic lipid deposition and intrahepatic macrophage infiltration, and these effects were significantly enhanced by their combined treatment, which also more strongly inhibited the mRNA expression levels of iNOS, CXCL-1 and IL-1β (P < 0.05).
CONCLUSION
LRG1 inhibits hepatic macrophage infiltration by enhancing TGF-β1 signaling to alleviate fatty liver inflammation in MAFLD mice.
Animals
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Mice
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Transforming Growth Factor beta1
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Macrophage Activation
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Signal Transduction
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Non-alcoholic Fatty Liver Disease
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Culture Media, Conditioned
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Glycoproteins
7.Cyasterone inhibits IL-1β-mediated apoptosis and inflammation via the NF-κB and MAPK signaling pathways in rat chondrocytes and ameliorates osteoarthritisin vivo.
Li TENG ; Yue SHEN ; Yuhan QU ; Longfei YANG ; Yuting YANG ; Xi JIAN ; Shengli FAN ; Lele ZHANG ; Qiang FU
Chinese Journal of Natural Medicines (English Ed.) 2023;21(2):99-112
Osteoarthritis is a prevalent global joint disease, which is characterized by inflammatory reaction and cartilage degradation. Cyasterone, a sterone derived from the roots of Cyathula officinalis Kuan, exerts protective effect against several inflammation-related diseases. However, its effect on osteoarthritis remains unclear. The current study was designed to investigate the potential anti-osteoarthritis activity of cyasterone. Primary chondrocytes isolated from rats induced by interleukin (IL)-1β and a rat model stimulated by monosodium iodoacetate (MIA) were used for in vitro and in vivo experiments, respectively. The results of in vitro experiments showed that cyasterone apparently counteracted chondrocyte apoptosis, increased the expression of collagen II and aggrecan, and restrained the production of the inflammatory factors inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), a disintegrin and metalloproteinase with thrombospondin motifs-5 (ADAMTS-5), metalloproteinase-3 (MMP-3), and metalloproteinase-13 (MMP-13) induced by IL-1β in chondrocytes. Furthermore, cyasterone ameliorated the inflammation and degenerative progression of osteoarthritis potentially by regulating the nuclear factor kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) pathways. For in vivo experiments, cyasterone significantly alleviated the inflammatory response and cartilage destruction of rats induced by monosodium iodoacetate, where dexamethasone was used as the positive control. Overall, this study laid a theoretical foundation for developing cyasterone as an effective agent for the alleviation of osteoarthritis.
Animals
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Rats
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Chondrocytes
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NF-kappa B
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Iodoacetic Acid
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Inflammation
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MAP Kinase Signaling System
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Apoptosis
8.Current research status of somatic symptom disorders in childhood
Longfei FENG ; Wenduo ZHAO ; Wenhao TIAN ; Qingqing DING ; Shichang YANG
Chinese Journal of Applied Clinical Pediatrics 2023;38(1):77-80
Somatic symptom disorder are common in childhood, and associated with high-risk adult psychiatric disorders and more unexplained hospitalization.They are one of the factors that seriously hinder health sound growth of children.In this article, domestic and foreign studies on somatic symptom disorders were reviewed to discuss their concept change, etiology and pathogenesis, clinical manifestation, diagnosis, evaluation and treatment, in order to facilitate early identification and treatment of somatic symptom disorders in childhood.
9.A non-human primate derived anti-P-selectin glycoprotein ligand-1 antibody curtails acute pancreatitis by alleviating the inflammatory responses.
Yuhan LI ; Xiangqing DING ; Xianxian WU ; Longfei DING ; Yuhui YANG ; Xiaoliang JIANG ; Xing LIU ; Xu ZHANG ; Jianrong SU ; Jianqing XU ; Zhiwei YANG
Acta Pharmaceutica Sinica B 2023;13(11):4461-4476
Acute pancreatitis (AP) is a devastating disease characterized by an inflammatory disorder of the pancreas. P-selectin glycoprotein ligand-1 (PSGL-1) plays a crucial role in the initial steps of the adhesive at process to inflammatory sites, blockade of PSGL-1 might confer potent anti-inflammatory effects. In this study, we generated two non-human primate derived monoclonal antibodies capable of efficiently targeting human PSGL-1, RH001-6 and RH001-22, which were screened from immunized rhesus macaques. We found that RH001-6, can effectively block the binding of P-selectin to PSGL-1, and abolish the adhesion of leukocytes to endothelial cells in vitro. In vivo, we verified that RH001-6 relieved inflammatory responses and pancreatic injury in both caerulein and l-arginine induced AP models. We also evaluated the safety profile after RH001-6 treatment in mice, and verified that RH001-6 did not cause any significant pathological damages in vivo. Taken together, we developed a novel non-human primate derived PSGL-1 blocking antibody with high-specificity, named RH001-6, which can interrupt the binding of PSGL-1 and P-selectin and attenuate inflammatory responses during AP. Therefore, RH001-6 is highly potential to be further developed into therapeutics against acute inflammatory diseases, such as AP.
10.Effect of Salidroside on Proliferation, Migration, Invasion, and Apoptosis of HepG2 Cells
Bing JIANG ; Tao YANG ; Longfei FENG ; Tao WANG ; Haixiang SU
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(17):75-83
ObjectiveSalidroside is the most abundant natural active compound in the famous Chinese herbal medicine Rhodiolae Crenulatae Radix et Rhizoma. This study aims to explore the effect of salidroside on the proliferation, migration, invasion, and apoptosis of human hepatoma (HepG2) cells. MethodThe HepG2 cells without any treatment were selected as the blank group, and the HepG2 cells in the salidroside groups were treated with salidroside at final concentrations of 20, 40, 80 μmol·L-1, respectively. A multifunctional cell analyzer, scratch assay, and Transwell assay were employed to determine the proliferation, migration, and invasion of HepG2 cells, respectively. An inverted microscope was used to observe the morphology, and a transmission electron microscope to observe the mitochondria of HepG2 cells. Flow cytometry was employed to determine the apoptosis and cycle distribution of HepG2 cells. Real-time fluorescent quantitative polymerase chain reaction ( Real-time PCR ) and Western blot were employed to determine the expression of apoptosis-associated genes and migration-, invasion-, and apoptosis-associated proteins, respectively, in HepG2 cells. ResultCompared with the blank group, salidroside (20, 40, 80 μmol·L-1) decreased the cell index and increased the healing area in a time- and dose-dependent manner (P<0.05). Compared with that in the blank group, the HepG2 cells that could pass through Matrigel reduced in the salidroside (20, 80 μmol·L-1) groups. Compared with the blank group, salidroside (20, 40, 80 μmol·L-1) increased the total apoptosis rate in a dose dependence manner and blocked the cells in the G2/M phase (P<0.05). Compared with the blank group, salidroside up-regulated the expression of epithelial-cadherin (E-cadherin) in a dose-dependent manner (P<0.05) and down-regulated that of nerve-cadherin (N-cadherin) in the 20 and 80 μmol·L-1 groups (P<0.05). Compared with the blank group, salidroside (20, 40, 80 μmol·L-1) up-regulated the mRNA level of cysteine-containing aspartate-specific protease -3 (Caspase-3) and the protein levels of B-cell lymphoma-2 (Bcl-2) associated X protein (Bax), Caspase-3, and cysteine-containing aspartate-specific protease-9 (Caspase-9) in a dose-dependent manner (P<0.05), while it down-regulated the protein levels of the actin-binding protein Girdin and Bcl-2 in a dose-dependent manner (P<0.05). ConclusionSalidroside inhibited the proliferation, migration, and invasion and induced the apoptosis of HepG2 cells through the mitochondrial pathway. The results suggest that salidroside can be used as a potential chemotherapy candidate for liver cancer.

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