1.Myricetin inhibits interferon-γ-induced programmed death ligand-1 and indoleamine 2, 3-dioxygenase 1 expression in lung cancer cells
Yu-Chi CHEN ; Xin-Ling HE ; Lu QI ; Wei SHI ; Luo-Wei YUAN ; Mu-Yang HUANG ; Yu-Lian XU ; Xiu-Ping CHEN ; Le-Le ZHANG ; Jin-Jian LU
Chinese Journal of Pharmacology and Toxicology 2021;35(10):761-761
OBJECTIVE Programmed death ligand-1 (PD-L1) and indoleamine 2, 3-dioxygenase 1 (IDO1) are immune checkpoints which can be induced by interferon-γ(IFN-γ) in the tumor microenvironment, leading to immune escape of tumors. Myricetin (MY) is a flavonoid distributed in many edible and medicinal plants. The aim of this study is to clarify the effect and the mechanism of MY on inhibiting IFN-γ-induced PD-L1 and IDO1 in lung cancer cells. METHODS Expressions of PD-L1 and major histocompatibility complex-I (MHC-I) were evaluated by flow cytometry and Western blotting, and the expression of IDO1 was measured by Western blotting. qRT-PCR was used to detect their mRNA levels. The function of T cells was evaluated using a co-culture system consist of lung cancer cells and the Jurkat-PD-1 T cell line that overexpressing PD-1. Molecular docking analysis, Western blotting and immunofluorescence were used for mechanism study. RESULTS MY potently inhibited IFN-γ-induced PD-L1 and IDO1 expression in human lung cancer cells, while didn't show obvious effect on the expression of MHC-I. In addition, MY restored the survival, proliferation, CD69 expression and interleukin-2 (IL-2) secretion of Jurkat-PD-1 T cells suppressed by IFN-γ-treated lung cancer cells in the co-culture system. Mechanistically, IFN-γ up-regulated PD-L1 and IDO1 at the transcriptional level through the JAK-STAT-IRF1 axis, which was targeted and inhibited by MY. CONCLUSION Our research revealed a new insight into the anti-tumor effects of MY which inhibited IFN-γ-induced PD-L1 and IDO1 expression, supporting the potential of MY in anti-tumor immunotherapy.
2.A multicenter survey of antibiotic use in very and extremely low birth weight infants in Hunan Province.
Ming-Jie WANG ; Shao-Jie YUE ; Jin LIN ; Xi-Rong GAO ; Xiao-Ming PENG ; Meng-Yu CHEN ; Hua-Bao PENG ; Bei CAO ; Yun-Qing ZENG ; Shu-Lian WANG ; Bo WEN ; Xi-Lin HUANG ; Xiao-Ping LI ; Ai-Zhen ZHANG ; Ting CAO ; Yi-Hua CHEN ; Tie-Qiang CHEN ; Chun-Hua YE ; Tao BO ; De-Lin JIANG ; Xiu-Qun HUANG ; Na-Fang REN ; Long-Zhang TAO ; Fang YAO ; Chang-Jun TIAN ; Hong-Ming LI ; Ai-Min ZHANG ; Fu-Rong HUANG ; Wei-Guo ZHANG ; Xiang-Hong CHEN ; Yu-Chan LIU ; Zheng-Lin LIU ; Yan-Shan XU ; Jing-Song MING ; Li CHEN ; Ning-Yi ZHU ; Jun-Min HE ; Sai-Jun YI ; Tuan-Mei WANG ; Zhao-Hui LI ; Gui-Tian WANG
Chinese Journal of Contemporary Pediatrics 2020;22(6):561-566
OBJECTIVE:
To investigate the current status of antibiotic use for very and extremely low birth weight (VLBW/ELBW) infants in neonatal intensive care units (NICUs) of Hunan Province.
METHODS:
The use of antibiotics was investigated in multiple level 3 NICUs of Hunan Province for VLBW and ELBW infants born between January, 2017 and December, 2017.
RESULTS:
The clinical data of 1 442 VLBW/ELBW infants were collected from 24 NICUs in 2017. The median antibiotic use duration was 17 days (range: 0-86 days), accounting for 53.0% of the total length of hospital stay. The highest duration of antibiotic use was up to 91.4% of the total length of hospital stay, with the lowest at 14.6%. In 16 out of 24 NICUs, the antibiotic use duration was accounted for more than 50.0% of the hospitalization days. There were 113 cases with positive bacterial culture grown in blood or cerebrospinal fluid, making the positive rate of overall bacterial culture as 7.84%. The positive rate of bacterial culture in different NICUs was significantly different from 0% to 14.9%. The common isolated bacterial pathogens Klebsiella pneumoniae was 29 cases (25.7%); Escherichia coli 12 cases (10.6%); Staphylococcus aureus 3 cases (2.7%). The most commonly used antibiotics were third-generation of cephalosporins, accounting for 41.00% of the total antibiotics, followed by penicillins, accounting for 32.10%, and followed by carbapenems, accounting for 13.15%. The proportion of antibiotic use time was negatively correlated with birth weight Z-score and the change in weight Z-score between birth and hospital discharge (r=-0.095, -0.151 respectively, P<0.01), positively correlated with death/withdrawal of care (r=0.196, P<0.01).
CONCLUSIONS
Antibiotics used for VLBW/ELBW infants in NICUs of Hunan Province are obviously prolonged in many NICUs. The proportion of routine use of third-generation of cephalosporins and carbapenems antibiotics is high among the NICUs.
Anti-Bacterial Agents
;
Birth Weight
;
Humans
;
Infant
;
Infant, Extremely Low Birth Weight
;
Infant, Newborn
;
Intensive Care Units, Neonatal
;
Surveys and Questionnaires
3.GG Genotype at rs1275988 and rs2586886 Loci of TWIK-related Acid-sensitive K Channel-1 Gene is A Potential Risk Factor for Severe Obstructive Sleep Apnea.
De Lian ZHANG ; Tian SHI ; Xiao Guang YAO ; Mei LI ; Heizhati MULALIBIKE ; Xiu Fang LI ; Lu WEN ; Ling YAO ; Yuan Yuan HE ; Ying Chun WANG ; Jing HONG ; Nan Fang LI
Acta Academiae Medicinae Sinicae 2020;42(1):16-23
To explore the mechanism of obstructive sleep apnea(OSA) by assessing the association between human TWIK-related acid-sensitive K channel-1(TASK-1) gene and OSA. A total of 164 patients with severe OSA and 171 patients without OSA were recruited from the Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region,China,from April to December 2016.Two single nucleotide polymorphisms(rs1275988 and rs2586886) in the TASK-1 gene were selected and genotyped using a Kompetitive Allele Specific PCR genotyping system. In patients with blood potassium <3.95 mmol/L,the distribution of rs1275988 alleles(G .A)(=4.474,=0.034) and recessive model(GG+GA .AA)(=4.327,=0.038) showed significant differences between severe and non-OSA groups.The distribution of rs2586886 alleles(G .A)(=6.345,=0.012) and dominant model(AA+GA .GA)(=4.431,=0.035) showed significant differences between severe and non-OSA groups.The Logistic regression analysis showed that the GG genotype was a risk factor for OSA patients with blood potassium <3.95 mmol/L(=7.854,95% :1.710-36.000,=0.008;=8.849,95% :1.816-43.117,=0.007). Both the GG genotypes of rs1275988 and rs2586886 in the TASK-1 gene may be potential risk factors in severe OSA patients with blood potassium <3.95 mmol/L.Serum potassium>3.95 mmol/L in patients with TASK-1 GG genotype may be conducive to reducing the incidence of severe OSA.
4.Regulatory Effect of Guilu Bugu Prescription in Treating Th17/ Treg Cell Factors of Patients with Postmenopausal Osteoporosis Based on Syndrome Differentiation
Jin-yong LIU ; He-ming WANG ; Jian LIN ; Xiu-ming CHEN ; Yue-long FANG ; Xiao-wen LIAN ; Shu-he CAI
Chinese Journal of Experimental Traditional Medical Formulae 2020;26(24):116-121
Objective:To observe the clinical efficacy Guilu Bugu prescription in treating postmenopausal osteoporosis (PMO) with deficiency of liver and kidney Yin based on syndrome differentiation and the effect on Th17/Treg cell factors. Method:One hundred and forty patients were randomly divided into observation group (70 cases) and control group (70 cases) by random number table. Both groups' patients got basic treatment of western medicine. Patients in control group got Jintiange capsules, 3 grains/time, 3 times/day. Patients in observation group got Guilu Bugu prescription, 1 dose/day. The treatment lasted for 6 months. And the 6-month follow-up was recorded. Before treatment, at the 6th month after treatment and at the 6th month of follow-up, bone density of lumbar vertebra L2-4 were detected by DXA, and Lumbar BMD were detected by QCT. Before treatment, at the 3rd and 6th month after treatment, deficiency of liver and kidney Yin and Chinese Osteoporosis-targeted quality of life questionnaire (COQOL) were scored. Before and after treatment, Estradiol (E2), procollagen I amino terminal pro peptide (PINP), osteoprotegerin (OPG), collagen I cross linked C-terminal peptide (S-CTX), tartrate resistant acid phosphatase (TRACP), interleukin-17 (IL-17), IL-22, IL-10, transforming growth factor-
5.Research status of metabonomics in arthritis: a bibliometric analysis
Yong-Yi ZHANG ; Zhi-Ling SUN ; Lin-Xiu PENG ; Lian XUE ; Wen-Juan JIAO ; Jing HE
Chinese Journal of Tissue Engineering Research 2018;22(4):612-618
BACKGROUND: Mechanisms undelying diagnosis and treatment of arthritis can be analyzed by metabonomics to study the metabolites. The combination of metabonomics and bibliometrics can systematically clarify the research status of osteoarthritis. OBJECTIVE: To analyze and summarize the research status of metabonimics in arthritis, and to prospect the future tendency. METHODS: CNKI, VIP, WanFang, CBM, PubMed, EBSCO, Web of Science and Elsevier databases were searched for the articles addressing the metabonimics in arthritis published before May 2017. The keywords were "metabolomics and arthritis" in English and Chinese, respectively. Initially 201 articles were retrieved, and finally 59 articles were included based on the inclusion and exclusion criteria for basic information and result analysis. RESULTS AND CONCLUSION: (1) Literature of metabonomics on arthritis began to be reported from 2007, and the number of literature increased with time. (2) The first author's affiliations were concentrated in universities 37(63%), hospitals 15 (25%) and institutes 7 (12%). (3) The articles included 44 articles from journals (75%), 12 dissertation (19%), 4 conference papers (7%), and the 44 papers were published in 38 kinds of journals. (4) Totally 36 articles were funded, 29 articles (49%) funded by the National Natural Science Foundation, 18 (31%) funded by department-level foundation, 10 (17%) funded by provincial foundation, 5 (8%) foreign foundation and 5 (8%) funded by school foundation. (5) The types of arthritis were mainly rheumatoid arthritis 40 (68%), osteoarthritis 7 (12%), gouty arthritis 6 (10%) and others 6 (10%). (6) The main research directions were metabonomis on treatment effectiveness 30 (51%), pathogenesis of arthritis 17 (29%), Chinese medicine syndromes 6 (10%) and research progress 6 (10%). (7) Metabolomics samples in the literature included the body fluid samples 53 (90%) and tissue samples 6 (10%). (8) Metabonomics analysis techniques included liquid chromatography-mass spectrometry 33 (56%), nuclear magnetic resonance technology 15 (25%), gas chromatography-mass spectrometry 10 (17%), NMR combined with GC-MS 1 (2%). In summary, metabonomics has been extensively applied in arthritis and has been an issue of concern. Understanding the side events in Chinese medicines for arthritis based on metabonomics can provide reference for the following prospective study and clinical application.
6.Comparison of analgesic effects between multimodal and patient-controlled intravenous analgesia in patients with rheumatoid arthritis in the perioperative period of total knee arthroplasty.
Hua-Li GAO ; Lian-Bo XIAO ; Wei-Tao ZHAI ; Yong HE ; Fei ZHU ; Lin ZHENG ; Xiu-Wei HAN
China Journal of Orthopaedics and Traumatology 2017;30(4):356-359
OBJECTIVETo compare the analgesic effect between multimodal and patient-controlled intravenous analgesia(PCIA) in patients with rheumatoid arthritis(RA) in the perioperative period of knee joint replacement.
METHODSFrom June 2015 to June 2016, 40 RA patients undergoing total knee arthroplasty were randomly divided into two groups. There were 20 patients in PCIA group, including 3 males and 17 females, with an average age of(59.6±2.3) years old, who received controlled instillation of sufentanil analgesia controlled by an intravenous analgesia pump. There were 20 patients in multiple model analgesia group, including 2 males and 18 females, with an average age of(56.3±1.3) years old, who were treated with continuous femoral nerve block, local injection of knee joint and combined buprenorphine patches. The VAS score and the incidence of adverse reactions and HSS score were compared between the two groups after operation. The advantages and disadvantages of the two modes of analgesia were evaluated.
RESULTSOn the 6 th and 24 th hours after surgery, the VAS scores of the multimodal analgesia group were significantly lower than those of the PCIA group(<0.01). On the 48 th hour after surgery, the VAS scores was significantly lower in the multimodal analgesia group than those in PCIA group(<0.000 1), both in the state of motion and at rest. On the 1 st week after surgery, the HSS score of the multimodal analgesia group was significantly higher than that in the PCIA group(<0.000 1). The pain score and the degree of activity in HSS score of the multimodal analgesia group were better than those in PCIA group (<0.05). The functional score of multimodal analgesia group was significantly better than that of PCIA group(<0.01). But there was no significant difference in muscle strength scores between two groups.
CONCLUSIONSMultimodal analgesia is an ideal analgesic plan for total knee arthroplasty TKA patients with RA in perioperative period, which has good effects and little adverse reaction.
7.Intraoperative Transesophageal Echocardiography in the Operation of Ebstein's Anomaly: A Retrospective Study.
Xiu-Jie TANG ; Min BAO ; He ZHAO ; Lian-Yi WANG ; Qing-Yu WU
Chinese Medical Journal 2017;130(13):1540-1543
BACKGROUNDEbstein's anomaly (EA) has various spectrums in clinical and anatomic features. This study aimed to report the experience of two-dimensional intraoperative transesophageal echocardiography (2D-ITEE) during the EA surgery and to analyze the characteristics of the tricuspid valve (TV) by comparing the data from 2D-ITEE with the results from the surgery.
METHODS2D-ITEE data of 164 patients with EA who were operated in the First Hospital of Tsinghua University between July 2004 and April 2014 were retrospectively analyzed in this study. 2D-ITEE was applied in all patients. Downward displacement distances were measured, and the numbers of downward displacement or absent leaflets were compared with that of the surgery and with that of the two-dimensional-transthoracic echocardiogram (2D-TTE). Data comparison was performed using the Chi-square test.
RESULTSThe anterior leaflet partial or total downward displacement was 37.76 ± 17.50 mm in 54 cases, absent in one patient; septal leaflet downward displacement was 29.07 ± 12.34 mm in 134 cases, absent in 17 cases; and posterior leaflet downward displacement was 43.18 ± 19.16 mm in 115 cases, absent in 34 cases. Statistically, there was no significant difference between the results from 2D-ITEE and that of 2D-TTE. The consistency rates of 2D-ITEE with operation for septal and posterior leaflets were 93.2% and 96.1%, respectively, while the rate for anterior was only 40.1%, which was significantly different. Color Doppler flow image showed severe regurgitation in 150 cases and moderate in 14 cases. After surgical correction, moderate regurgitation of TV was found in 58 cases with 2D-ITEE, repair was performed again until the effect was satisfied. No complication occurred relating to the use of 2D-ITEE.
CONCLUSIONS2D-ITEE could help diagnose anterior leaflet, evaluate the effect of TV repair, increase operational success rate, and reduce complication.
8.Operative cooperation of laparoscopic transhiatal proximal gastrectomy for the esophagogastric junction adenocarcinoma
Bang-Cui YANG ; Xiu-Lian HE ; Jing LI ; Feng-Chun XIE ; Xiao-Hua ZHANG
Chinese Journal of Modern Nursing 2012;18(36):4439-4441
Objective To summarize the safety and experience of operative cooperation of the laparoscopic transhiatal proximal gastrectomy therapy for esophagogastric junction adenocarcinoma.Methods Totals of 98 cases with esophagogastric junction adenocarcinoma underwent the treatment of laparoscopic transhiatal proximal gastrectomy were analyzed and summarized.Results Totals of 96 patients underwent laparoscopic transhiatal proximal gastrectomy successfully and 2 converted to open operation (one patient combined splenectomy and the other combined splenectomy and resection of the tail of the pancreas).The mean operative time was (224.1 ± 33.7) main and the mean blood loss was (69.4 ±26.1) ml.The mean length of esophageal resection was (4.0 ± 0.6) cm and no cancer cells were found in the incision edge.The number of lymph nodes removed was (16.4 ± 5.7).Among 96 patients,pleural laceration occurred 14 cases and spleen injury occurred 3 cases,no postoperaive mortalities happened.After follow-up from 3 month to 30 month,5 patients died.Conclusions Fully preoperative assessment and closely cooperation of operation team are important for the laparoscopic transhiatal proximal gastrectomy therapy for esophagogastric junction adenocarcinoma,which have a good short-term clinical effects.
9.Effect of oxytocin on uterine fibroids treated by ultrasound ablation
Xiu HUANG ; Min HE ; Yingjiang LIU ; Lian ZHANG ; Zhibiao WANG
Chinese Journal of Obstetrics and Gynecology 2011;46(6):412-415
Objective To explore the effect of oxytocin on uterine fibroids treated by ultrasound ablation. Methods Eighty-two single points in 29 uterine fibroids from 26 patients were sonicated with magnetic resonance imaging guided by high intensity focused ultrasound before and after using oxytocin. The required total energy, sonication time required to reach 60 ℃ and the acoustic energy for increasing 1 ℃ of temperature at the single point before and after using oxytocin were compared. Results Before intravenous infusion of oxytocin, the average total sonication energy required to reach 60 ℃ was (5320 ±910) J and it took (21 ±20) seconds for sonicating a single point, the energy required for increasing 1 ℃ was (255 ± 302) J. In contrast, after intravenous infusion of oxytocin, the average total sonication energy required to reach 60 ℃ was (2890 ±325) J, and it took (12 ±7) seconds for sonicating a single point, the energy required for increasing 1 ℃ was ( 126 ± 94 ) J. Those three index all reached statistical difference ( P = 0.002, P = 0.001, P= 0.002, respectively). Conclusion It seemed that Oxytocin could significantly decrease the energy required for ablating uterine fibroids, shorten treatment time and improve the treatment efficiency.
10.Pathological observation after MRI guided high intensity focused ultrasound therapy for ablating the liver tissues adjacent to goat portal vein.
Feng JIANG ; Min HE ; Yingjiang LIU ; Xiu HUANG ; Lian ZHANG ; Jin BAI ; Zhibiao WANG
Journal of Biomedical Engineering 2011;28(4):666-669
The present study was aimed to investigate the pathological changes after magnetic resonance imaging (MRI) guided high intensity focused ultrasound (MRgHIFU) therapy for ablating the liver tissue adjacent to goat portal vein. Fifty goats were involved in this study. Normal liver tissues at 0, 5, and 10 mm distance from portal vein, respectively, were ablated with MRgHIFU. Among the 50 tested subjects, 40 goats were sacrificed immediately after the operations, and the other 10 were sacrificed 7 days after the procedure for pathological examination of the targeted areas and the contiguous portal veins. Coagulation necrosis was observed in all the treated liver tissues. Collagen swelling (CS) and vessel wall fracture (VWF) emerged more frequently in the 0 mm group than that in the 5mm group: CS [0 mm group VS 5mm group = 27/40 (67.5%) VS 7/40 (17.5%), P < 0.05], VWF [0 mm group VS 5mm group = 8/40 (20%) VS 0/40 (0%), P < 0.05]. Seven days after ablation, no portal vein damages (CS and VWF) were observed under light microscope. The results indicated that MRgHIFU could be used to ablate the liver tissue adjacent to goat portal vein effectively, which may cause blood vessel damage when the focus is on the wall of blood vessels (0 mm). However, the pathological results indicated that these damages are reversible.
Animals
;
Female
;
Goats
;
High-Intensity Focused Ultrasound Ablation
;
adverse effects
;
methods
;
Liver
;
pathology
;
Magnetic Resonance Imaging
;
Male
;
Portal Vein
;
pathology

Result Analysis
Print
Save
E-mail