2.Anti-tumor activity and mechanisms of IDO1 inhibitor in combined treatment with temozolomide on human glioma cell lines
Acta Pharmaceutica Sinica 2022;57(3):707-715
We analyzed the anticancer effect and mechanism of the novel indoleamine 2,3-dioxygenase 1 (IDO1) inhibitor NLG-919 combined with temozolomide (TMZ) on human glioma cell lines. The anti-tumor activity of NLG-919 and temozolomide after single and combined treatments was detected by MTT assay. Colony formation assay, invasion assay and migration assays were used to detect the effects of NLG-919 and temozolomide alone or in combination on proliferation, invasion and migration of human glioma cells. A flow cytometry assay was used to detect cell apoptosis, cell cycle arrest, reactive oxygen species (ROS) production and mitochondrial membrane potential damage (JC-1). An immunofluorescence assay was used to detect the expression level of IDO1 and HPLC was used to detect the expression level of
4.Study of miR-125b, miR-29a and miR-155-5p as biomarkers of tuberculous meningitis
Lulu CHAI ; Songxin TIAN ; Li YUAN ; Hong WANG
Tianjin Medical Journal 2015;(6):674-676,677
Objective To investigate the expression levels of microRNA(miR)-125b, miR-29a and miR-155-5p in ce?rebrospinal fluid (CSF) and plasma from the patients with tuberculous meningitis and their clinic significance. Methods Cerebrospinal fluid and plasma samples were collected from 20 patients with tuberculous meningitis (tuberculous meningitis group) and 20 patients suffered from primary headache (control group). The total RNAs were extracted.The levels of miR-125b, miR-29a and miR-155-5p were determined by real-time quantitative PCR (q-PCR). Results Levels of miR-29a and miR-125b in both CSF and plasma of patients in tuberculous meningitis group were significantly higher than those in pa?tients from control group with statistical significance (P<0.01). Mean time, the level of miR-155-5p in plasma but not in CSF of patients in tuberculous meningitis group was higher than those in control group with statistical significance ( P<0.01). Conclusion Expression of miR-125b, miR-29a and miR-155-5p may participate in regulating the occurrence and development of tuberculous meningitis. And miR-125b and miR-29a may be used as potential biomarkers for diagnosing tu?berculous meningitis.
6.Analysis of Kinetic Function of Articulating Organs in Children with Cerebral Palsy
Hong TIAN ; Shengli LI ; Yongxue YUAN ; Qingsu ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2007;13(9):837-838
Objective To survey the kinetic function of articulating organs in children with cerebral paralysis.Methods The kinetic characteristics of articulating organs in 115 cerebral paralysis children aged 2~6 were observed,including frequency of respiration,stability of respiration,if there was reverse respiration,whether the respiration of mouth and nose was separated,the longest articulating and expiration time,original reflections of mouth and so on.Results and Conclusion The kinetic function of children's articulating organs was limited just like that of their limb.So their kinetic characteristics of articulative organs differed from adults's and normal children's.
7.Hedgehog signaling pathway and osteoporosis.
Ming LUO ; Hong-Xing HUANG ; Hong HUANG ; Ze-Tian LI ; Yuan-Yuan LAI
China Journal of Orthopaedics and Traumatology 2014;27(2):169-172
Hedgehog signaling pathway is a conserved and important signaling pathway involved in proliferation and differentiation of many types of cells. Latest studies have found that Hedgehog signaling pathway may induce MSCs osteoblast differentiation by increasing the expression of the Runx2 and Osx and inhibit MSCs differentiate to adipocyte. Hedgehog signaling pathway may also promote osteoblast proliferation by regulating cyclin. This review summarizes the mechanism that Hedgehog signaling pathway regulates osteoblast differentiation and proliferation,and concludes that Hedgehog signaling pathway can regulate bone metabolism. It might provide new ideas for the treatment of osteoporosis.
Cell Differentiation
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Core Binding Factor Alpha 1 Subunit
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genetics
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physiology
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Hedgehog Proteins
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physiology
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Humans
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Mesenchymal Stromal Cells
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cytology
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Osteoblasts
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cytology
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Osteoporosis
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drug therapy
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etiology
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Signal Transduction
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physiology
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Sp7 Transcription Factor
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Transcription Factors
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genetics
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physiology
8.Effects of ketogenic diet on neurobehavioral damages and expression of ZIP7 in cerebral cortex of rat following recurrent neonatal seizures
Danfeng XU ; Yuan YANG ; Dongjing ZHAO ; Tian TIAN ; Lili LI ; Hong NI
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(6):485-488
Objective To explore the intervention effect of ketogenic diet (KD) on neurobehavioral damages after flurothyl-induced neonatal recurrent seizures in rats and on the expression of ZIP7.Methods Postnatal day 8 SD rats (n=24) were divided into four groups randomly:normal group (NS+ND group),non-seizure and ketogenic diet group (NS+KD group),seizure and normal diet group (RS+ND group),seizure and ketogenic diet group (RS+KD group),n=6 in eacb group.At postnatal day 31,the grip-strength test and open field test were monitored.At postnatal day 32,rats were sacrificed and the expression of ZIP7 protein level in cerebral cortex was detected with Western blot.Results (1) The grip-strength test:compared with NS+ND group ((32.67±2.42) s),the time needed to hold on glass bar in RS+ND group ((19.17±2.48) s) was shorter significantly (P<0.05).Compared with RS+ND group,the time needed to hold on glass bar in RS+KD group ((26.25±2.87) s) was significantly longer (P<0.05).(2) Open field test:compared with NS+ ND group ((2.00± 0.63) times),the times of grooming in RS+ND group ((4.00±0.63) times) were more (P<0.05).Compared with RS+ND group,the times of grooming in the RS+KD group ((2.17±0.75) times) were fewer (P<0.05).(3)Western blot:compared with NS +ND group,the level of ZIP7 of the RS+ND group in cerebral cortex were lower (P<0.05).Compared with RS+ND group,the level of ZIP7 of the RS+KD group in cerebral cortex were higher (P<0.05).Conclusion Neonatal recurrent seizures may damage neurobehavior,and the neuroprotective effects of ketogenic diet may be associated with the increasing of ZIP7 in cerebral cortex.
9.Therapeutic effect and security of triple antiplatelet with Cilostazol in the elderly after drug-eluting stent implantation
Rui TIAN ; Shuzheng LV ; Hong LIU ; Fei YUAN ; Xin CHEN ; Huagang ZHU ; Xiantao SONG ; Yuan ZHOU ; Changjiang GE
Chinese Journal of Geriatrics 2012;31(3):185-188
Objective To evaluate the therapeutic effect and security of triple antiplatelet with cilostazol in the elderly after drug-eluting stent implantation and compare it with double antiplatelet treatment. Methods 234 elderly patients with coronary disease were randomly divided into two groups.118 cases in the triple antiplatelet group were treated with clopidogrel (300 or 600 mg/d) and aspirin(100 mg/d) in addition with cilostazol(200mg/d) from pre surgery to 6 month after surgery,then received double antiplatelet treatment.116 cases in the double antiplatelet group were treated with Aspirin(100 mg/d) and clopidogrel(300 or 600 mg/d),then clopidogrel was ceased after 1 year and used only Aspirin. The main parameters during follow up included all-cause death,major adverse cardiovascular events (MACE) and major adverse cardiac and cerebrovascular event (MACCE),the secondary parameters during follow- up were recurrence of angina pectoris,myocardial infarction,revascularization and hemorrhage within 2 years. Results The recurrence of angina pectoris and revascularization were found in 1 case (0.85%) and 1 case(0.85%) respectively in the triple antiplatelet group,while 8 cases(6.90%) and 8 cases (6.90%) in the double antiplatelet group,with significant difference between the two groups(both x2 =4.27,P<0.05).All cause death,myocardial infarction,cerebral apoplexy and hemorrhage were not found in the triple antiplatelet group,while 1 case of death,1 case with myocardial infarction,1 case with apoplexy and no hemorrhage appeared in the double antiplatelet group,with no significant difference between the two groups(P>0.05).Conclusions The triple antiplatelet added with cilostazol in the elderly after drug eluting stent implantation may decrease the recurrence of angina pectoris and revascularization with higher security.
10.Identification of peucedani radix, peucedani decursivi radix and its adulterants using ITS2 sequence.
Dian-Yun HOU ; Jing-Yuan SONG ; Pei YANG ; Hong ZHOU ; Tian-Yi XIN ; Hui YAO
China Journal of Chinese Materia Medica 2014;39(21):4186-4190
In order to identify Peucedani Radix, Peucedani Decursivi Radix and their adulterants, the internal transcribed spacer 2 (ITS2) regions of Peucedani Radix, Peucedani Decursivi Radix and their adulterants were amplified and bidirectionally sequenced based on the Principles for Molecular Identification of Traditional Chinese Materia Medica Using DNA Barcoding, which has been promulgated by Chinese Pharmacopoeia Commission. Sequences were analyzed and assembled by Codon Code Aligner V3. 7.1. The relevant data were analyzed by MEGA 5. 0. Species identification analyses were performed by using the nearest distance methods and neighbor-joining (NJ) methods. The result showed that the ITS2 sequence lengths of Peucedani Radix were 229-230 bp and the average intra-specific genetic distances were 0.005. The ITS2 sequence lengths of Peucedani Decursivi Radix were 227 bp and the sequences contained no variation site. The average inter-specific K2P genetic distance of Peucedani Radix, Peucedani Decursivi Radix and their adulterants species were 0.044 and 0.065 respectively. The minimum inter-specific divergence is larger than the maximum intra-specific divergence of Peucedani Decursivi Radix. The nearest distance methods and NJ trees results indicated that Peucedani Radix, Peucedani Decursivi Radix and their adulterants species could be identification clearly. The ITS2 regions can stably and accurately distinguish Peucedani Radix, Peucedani Decursivi Radix and their adulterants.
Apiaceae
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classification
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genetics
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DNA Barcoding, Taxonomic
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methods
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DNA, Ribosomal Spacer
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Drug Contamination