1.Progress and application of liver organoids in the study of liver cancer
Min WANG ; Ziyan XU ; Chao YU ; Xinyi ZHANG ; Hongyong CAO ; Yong MA
Chinese Journal of Hepatology 2023;31(12):1332-1335
The incidence rate of liver cancer has been rising in recent years. Traditional cell line culture and human patient-derived tumor xenograft models, which are commonly used tools to simulate the occurrence of human liver cancer, have deepened the understanding of tumor occurrence, development, and drug resistance mechanisms. However, they cannot reflect the accurate state of cancer cells, the tumor microenvironment, or spatial structural characteristics. Recently, more in vitro-produced physiological liver organoids have been applied in the study of liver cancer. Liver organoid models have made breakthroughs in the occurrence and development mechanisms of liver cancer, personalized drug screening and biomarker identification, immunotherapy, and regenerative medicine applications. This paper mainly summarizes the progress and application of liver organoids processed in the study of liver cancer.
2.Gastrin attenuates sepsis-induced myocardial dysfunction by down-regulation of TLR4 expression in macrophages.
Dandong FANG ; Yu LI ; Bo HE ; Daqian GU ; Mingming ZHANG ; Jingwen GUO ; Hongmei REN ; Xinyue LI ; Ziyue ZHANG ; Ming TANG ; Xingbing LI ; Donghai YANG ; Chunmei XU ; Yijie HU ; Hongyong WANG ; Pedro A JOSE ; Yu HAN ; Chunyu ZENG
Acta Pharmaceutica Sinica B 2023;13(9):3756-3769
Myocardial dysfunction is the most serious complication of sepsis. Sepsis-induced myocardial dysfunction (SMD) is often associated with gastrointestinal dysfunction, but its pathophysiological significance remains unclear. The present study found that patients with SMD had higher plasma gastrin concentrations than those without SMD. In mice, knockdown of the gastrin receptor, cholecystokinin B receptor (Cckbr), aggravated lipopolysaccharide (LPS)-induced cardiac dysfunction and increased inflammation in the heart, whereas the intravenous administration of gastrin ameliorated SMD and cardiac injury. Macrophage infiltration plays a significant role in SMD because depletion of macrophages by the intravenous injection of clodronate liposomes, 48 h prior to LPS administration, alleviated LPS-induced cardiac injury in Cckbr-deficient mice. The intravenous injection of bone marrow macrophages (BMMs) overexpressing Cckbr reduced LPS-induced myocardial dysfunction. Furthermore, gastrin treatment inhibited toll-like receptor 4 (TLR4) expression through the peroxisome proliferator-activated receptor α (PPAR-α) signaling pathway in BMMs. Thus, our findings provide insights into the mechanism of the protective role of gastrin/CCKBR in SMD, which could be used to develop new treatment modalities for SMD.
3.Application of similar drug dispensing mode in drug dispensing management
Weiping LI ; Hongyong YOU ; Rufu XU ; Qiang WANG
China Pharmacy 2023;34(11):1389-1392
OBJECTIVE To provide reference for improving the dispensing accuracy of similar drugs and reducing dispensing error risk through exploring the dispensing mode of similar drugs. METHODS The effectiveness and feasibility of the similar drug dispensing management mode was explored through adjusting the traditional horizontal or vertical sorting method to a “Z” shaped cargo location sorting, implementing similar drug in different zones dispensed by different people, and combining measures such as adjusting the format of drug dispensing documents and improving inventory methods. The role of similar drug dispensing mode in drug dispensing management was evaluated comprehensively from two aspects: work quality and work efficiency. RESULTS After the implementation of similar drug dispensing mode, total number of monthly dispensing errors (18.42±8.79 vs. 28.50±6.87,P= 0.005) and the proportion of monthly dispensing errors of similar drugs ([ 4.17±5.71)% vs. (10.96±7.05)%,P=0.017] were significantly lower than before the implementation; the monthly consistency rate between accounts and materials ([ 98.46±0.73)% vs. (97.61±0.57)%, P=0.004] was significantly higher than before implementation; completion time of dispensing in each batch was not significantly affected, and daily work was carried out smoothly and orderly. CONCLUSIONS The similar drug dispensing mode has a significant effect in improving the accuracy of dispensing similar drugs, reducing the risk of dispensing errors, and does not affect the efficiency of dispensing work.
4.Cerebral venous sinus thrombosis caused by pegasparaginase: a clinical analysis of 8 cases
Yinyan YAN ; Hongyong LIU ; Lihua YU ; Danna LIN ; Lulu HUANG ; Xiaorong LAI ; Yajie ZHANG ; Juan ZI ; Li WU ; Xu LIAO ; Lihua YANG
Chinese Journal of Neuromedicine 2022;21(5):462-468
Objective:To investigate the risk factors and prognoses of cerebral venous sinus thrombosis (CVST) caused by pegasparaginase (PEG-Asp).Methods:A total of 252 children with acute lymphoblastic leukemia (ALL) were treated with PEG-Asp chemotherapy in our hospital from December 2016 to July 2021, including 8 children with CVST. The clinical manifestations, laboratory and imaging features, treatments and prognoses of these children with CVST caused by PEG-Asp were analyzed retrospectively.Results:(1) CVST occurred during induction chemotherapy in 4 children, during re-induction chemotherapy in 3 children, and during consolidation stage in one child. CVST occurred in two children who received PEG-ASP chemotherapy once, in one child who received PEG-Asp chemotherapy twice, and 5 children who received PEG-Asp chemotherapy more than twice. The median time between CVST occurrence and last treatment of PEG-Asp was 20.5 d. (2) The clinical manifestations included paroxysmal headache ( n=4), nausea or vomiting ( n=3), convulsions ( n=2) and persistent blurred vision ( n=1). (3) CVST appeared at the sigmoid sinus ( n=6), transverse sinus ( n=4) and superior sagittal sinus ( n=4), of which one child was complicated with hemorrhage in left frontal parietal and right parietal cortex, and one with reversible posterior encephalopathy syndrome; 8 children were not complicated with thrombus in other parts. (4) Some of the children were complicated with abnormal blood coagulation. When CVST occurred, fibrinogen level decreased in 3 children, anti-thrombin III level decreased in 2 children, and D-dimer level increased in 3 children. (5) Six children were treated with low molecular weight heparin (LMWH), of which, 4 were treated with rivasaban and one with warfarin sequentially. The total course of anticoagulation was 56 d. (6) The symptoms of 6 children disappeared after anticoagulation; Magnetic resonance venography (MRV) showed disappeared thrombus in 4 children and reduced thrombus range in 2 children. One child with intracranial hemorrhage did not use PEG-Asp anymore; 7 accepted PEG-Asp further during follow-up chemotherapy, of which one had CVST recurrence and the range of thrombus was reduced after anticoagulant therapy. Conclusions:When children with ALL develop unexplained neurological symptoms during PEG-Asp chemotherapy, CVST should be highly vigilant. Enhanced MRI and MRV should be performed for early diagnosis. Some children are complicated with abnormal blood coagulation, and LMWH, warfarin and rivasaban are effective. The prognosis is good and there are no sequelae. Most children accepted PEG-Asp again will not have CVST again.
5.The effect of mechanical stretching stress on the proliferation, apoptosis of degenerative disc nucleus pulposus cells and expression of extracellular matrix
Wen ZHANG ; Hui XU ; Dawei LUO ; Hongyong FENG ; Changbin JI ; Keshi YANG ; Bin LI ; Kunpeng LI
Chinese Journal of Physical Medicine and Rehabilitation 2018;40(10):721-726
Objective To observe in vitro the effect of mechanical stress at different intensities on the pro-liferation, apoptosis and extracellular matrix of degenerative human nucleus pulposus cells. Methods The cells were isolated and cultured in vitro, and divided into a control group, a low-intensity group, a medium-intensity group and a high-intensity group. The low-, medium- and high-intensity groups were stretched mechanically by 1000 μ, 2000μor 4000μrespectively for 6 hours using a four-point bending system, while the control group was not stressed. Flow cytometry was used to explore any changes in the cell cycle and the proliferation index ( PI) . The expression of proliferating cell nuclear antigen ( PCNA) , B-cell lymphoma-2 ( BCL-2)/Bax, collagen II and aggrecan were meas-ured using real-time quantitative polymerase chain reactions. Results The mechanical stretching significantly influ-enced proliferation, apoptosis and the extracellular matrices compared with the control group. The PI and PCNA ex-pression increased at first and then decreased gradually with the exercise intensity. Compared with the control group, the mRNA expression level of Bcl-2/Bax increased significantly to 1.53 times that of the control group after 1000 μstretching, but to only 0.71 times that of the control group at 2000μand 0.43 times at 4000μ. The gene expression of collagen II increased significantly by 1. 1 times and that of aggrecan by 1. 3 times after 1000 μ stress stimulation compared with the control group ( P≤0.05) . However, the expression of collagen II and aggrecan was inhibited sig-nificantly at 2000 and 4000 μ , with the lowest levels at 4000 μ (P≤0.05). Conclusion Stretching at different intensities has different effects on the proliferation, apoptosis and extracellular matrix of human pulposus cells with degenerate nuclei.
6.Effect of the HMGB1、CEA and SCC-Ag by paclitaxel combined with cisplatin chemotherapy in advanced esophageal cancer
Wei HU ; Shubo DING ; Hongyong WANG ; Huijuan HE ; Xiaofang LIAO ; Wansu XU
Chinese Journal of Biochemical Pharmaceutics 2017;37(2):165-167
Objective To investigate the effect of the high mobility group protein 1 (HMGB1), cancer embryonic antigen (CEA) and squamous cell carcinoma antigen ( SCC-Ag) by paclitaxel combined with cisplatin chemotherapy in the treatment of advanced esophageal cancer patients .Methods 43 cases advanced esophageal cancer patients from our hospital were selected and randomly divided into the control group and the experiment group.19 cases in the control group were treated by surgery combined with postoperative chemotherapy , 24 cases in the experimental group were treated with surgery and chemotherapy.The clinical efficacy and high mobility group protein 1 ( HMGB1 ) , cancer embryonic antigen ( CEA ) and squamous cell carcinoma antigen ( SCC-Ag ) levels were compared between the two groups before and after treatment.Results The total effective rate of the experimental group was (91.7%) higher than that of the control group (57.9%), the difference was statistically significant (P <0.05).After treatment, the serum levels of SCC-Ag, CEA and HMGB1 were decreased in the two groups, compared with the control group, the experimental group SCC-Ag, CEA and HMGB1 levels were lower, the difference was statistically significant ( P <0.05 ) .There was no significant difference in adverse reactions between the two groups.Conclusion Paclitaxel combined with cisplatin in the treatment of advanced esophageal cancer patients with good results, presumably with the decrease of serum SCC-Ag, CEA and HMGB1 levels in patients with.
7.The analysis on the funding of Natural Science Foundation of China for acupuncture projects from 2005 to 2015.
Chinese Acupuncture & Moxibustion 2017;37(5):550-554
The funding of Natural Science Foundation of China (NSFC) for acupuncture projects from 2005 to 2015 was summarized and analyzed. The results indicated during past 11 years, 711 projects regarding acupuncture were funded by NSFC, with a total of 281 million RMB, accounting for 12.39% in TCM projects. It was concluded the funding for acupuncture projects was increased year by year, but was still relatively weak; in addition, the funding was unbalanced in different areas and organizations, mainly in Beijing, Shanghai, Sichuan, Guangdong, Tianjin, and the continuity and variability both existed in research content and direction.
8.Application of ultrasound-guided modified-fascia iliaca compartment block in the supine position in elderly patients with hip fracture
Wenchao ZHANG ; Lan BAI ; Yi YUAN ; Chengshi XU ; Hongyong JIN ; Xuan LI ; Geng WANG
The Journal of Clinical Anesthesiology 2017;33(10):957-960
Objective To compare the analgesic effect of the ultrasound-guided modified-fascia iliaca compartment block with ultrasound-guided fascia iliaca compartment block injection in the treat-ment of elderly patients with hip fracture.Methods Sixty elderly patients with hip fracture,17 males and 43 females,falling into ASA physical status Ⅱ or Ⅲ,were randomly divide into two groups (n=30 each):ultrasound-guided modified fascial iliaca compartment block group (group M)and ultra-sound-guided fascial iliaca compartment block group (group F).The patients in group M received M-FICB using ultrasound-guided injection of 0.4% ropivacaine 5 ml in obturator nerve,15 ml in the fas-cial iliac space.The patients in group F received ultrasound-guided injection of 0.4% ropivacaine 20 ml in the fascial iliac space.FICB or MFICB was performed 20 min before epidural anesthesia in group F or group M respectively.The time of ultrasound-guided nerve block was recorded,and the onset time of femoral nerve,lateral femoral cutaneous nerve and obturator nerve block were recorded in the two groups.Visual analogue pain scores (VAS)were recorded before nerve block (T0 ),after nerve block,10 min (T1 ),20 min (T2 ),placing spinal anesthesia position (T3 ),and postoperative 24 h (T4 ).Results The onset time of obturator nerve block in group M was significantly shorter than that in group F [(4.1±1.4)min vs (10.1 ±3.9)min,P <0.05].The time of ultrasound-guided nerve block has no difference between the two groups [(2.2 ± 0.5 )min vs (2.1 ± 0.5 )min].Compared with group F,the VAS scoress at T1-T3 were lower in group M (P <0.05).Compared with T0 ,the VAS scores at T1-T4 decreased in both groups (P < 0.05 ).Conclusion Ultrasound-guided fascia iliaca compartment block is more effective in reducing the VAS scores during the supine position and reducing postoperative pain.
9.Exploration on Framework Construction of Clinical Terminology Classiifcation Standardization from Ancient TCM Literatures - Based on Qian Jin Fang
Min YUAN ; Yi SHI ; Shanghua LIANG ; Hongyong DENG ; Ji XU ; Yang ZHANG ; Shujing YANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;17(4):875-879
With the global development of medical information standard, construction work of traditional Chinese medicine (TCM) information standard system has been promoted rapidly. The framework of ancient Chinese medical literature clinical terminology classification standardization is one of the foundations of TCM language system. Its research will further promote and perfect TCM information standard system. We have adhered to the connection among ancient TCM classification framework, modern TCM and western medicine classification framework. Exploration on framework construction of ancient Chinese medical literature clinical terminology classification standardization was based on previous work of Chinese medicine clinical terminology classification and code standard, reference frame structure of SNOMED CT, research findings of classification standard framework of Chinese medicine clinical terms, andQian Jin Fang.
10.A study of the feasibility of posterior thoracic transarticular pedicle screw fixation
Guanyi LIU ; Rongming XU ; Weihu MA ; Hongyong ZHAO ; Shoohua SUN ; Huajie LIN ; Nanjian XU ; Yanzhao ZHU
Chinese Journal of Orthopaedics 2011;31(8):892-896
Objective To identify the feasibility and the anatomical parameters of posterior transarticular pedicle screw fixation in the thoracic spine, provide a reference for clinical applications. Methods Twenty human cadaveric thoracic spine segments were dissected posteriorly and anteriorly, with care taken to expose the laminas and pedicles. The entrance point of transarticular pedicle screws was located in the 7 mm away from the above at the inferior margin of the lamina and the inside at the exterior margin, respectively. Posterior transarticular pedicle screws implantation was performed under direct visualization into T1,2,T5,6 and T9,10 Under direct abservation, the feasibility of posterior transarticular pedicle screw fixation was assessed. Then a CT was done. On the morphologic CT scan, the angle and length of the transarticular pedicle crew trajectory were measured. Results The thoracic transarticular pedicle screw trajectory were caudal tilting in the sagittal plane and lateral tilting in the axial plane with successful placement. Screws were placed across the facet joint, and from the inferior articular process of upper thoracic vertebra into the pedicle of lower thoracic vertebra. There was little difference between different number of thoracic vertebrae of the angle, but without significance. The average angles of the screws were 41.4°+3.2°caudal tilting in the sagittal plane and 2.1°±0.7° lateral tilting in the axial plane. The average trajectory lengths were (40.6±4.9)mm, and the lengths increased gradually from upper thoracic vertebra to middle and lower. There were significant differences statistically among T1,2, T5,6 and T9.10 (F=74.09, P<0.01 ). Conclusion Posterior transarticular pedicle screw fixation is feasible, and there are some directions for implantating the screws. Transarticular pedicle fixation in the thoracic spine affords an alternative to standard pedicle screw placement for thoracic stabilization.

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