1.Effects of exposure to simulate unpressurised and dry state of disable submarine on the distributions of CD55 and CD59 on blood cellular membrane.
Rui-yong CHEN ; Miao MENG ; Jun ZHANG
Chinese Journal of Applied Physiology 2007;23(2):226-228
Biomimetics
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Blood Cells
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metabolism
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CD55 Antigens
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blood
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CD59 Antigens
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blood
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Cell Membrane
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Humans
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Male
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Submarine Medicine
2.Paclitaxel liposome combined with cisplatin chemotherapy in non-small cell lung cancer with brain metastasis
Na LIU ; Jun CHENG ; Lingzhan MENG ; Yong LIU
Journal of International Oncology 2015;(5):321-323
Objective To evaluate the clinical efficacy and toxicity of paclitaxel liposome combined with cisplatin chemotherapy in NSCLC with brain metastasis. Methods Twenty-eight patients were newly diag-nosed NSCLC with brain metastasis(confirmed by pathology or cytology). The patients were treated with pacli-taxel liposome(135 mg/ m2 )on day 1 intravenous drip for 3 hours,cisplatin,25 mg/ m2 on day 1-3. The course of treatment was 21 days. The patients accepted the anti-allergy treatment before chemotherapy. Results Twenty-eight patients could be evaluated,and 101 treatment cycles were completed( 3. 6 cycles per patient). General lesion assessment presented that no patient got complete remission( CR),13 patients (46. 43% )got a partial response(PR),11(39. 28% )had a stable disease(SD)and 4(14. 29% )had a progressive disease( PD). The objective response rate( RR)was 46. 43% ,and the disease control rate (DCR) was 85. 71% . Local cerebral response assessment showed that no patient got CR,6 patients (21. 43% )got a PR,15(53. 58% )had a SD and 4(14. 29% )had a PD. The RR was 21. 43% ,and the DCR was 85. 71% . There was a significant difference in the RR(χ2 = 3. 90,P = 0. 03)but not in the DCR (χ2 = 0. 15,P = 0. 3)between the local cerebral disease and the general lesion. The median time to disease progression(TTP)for general lesion and local cerebral were 7. 2 months and 6. 2 months,respectively(χ2 =6. 43,P < 0. 05). The adverse reactions included bone marrow suppression,gastrointestinal reactions,elevated transaminases,alopecia,neurotoxicity,etc. All of these could be well controlled. Conclusion Paclitaxel liposome combined with cisplatin regimen demonstrates a higher efficacy and well tolerable against main metas-tasis of NSCLC,and the adverse effects are minor.
3.Experience on Relocation of Hospital Computer Center
Chenxi ZHANG ; Guolong GU ; Jun XIAO ; Haiqin SHEN ; Yong MENG
Chinese Medical Equipment Journal 1993;0(06):-
The strategy for relocation of computer center room in hospital is expatiated.A set of measures are adopted such as careful planning,detailed design,aborative preparation,reasonable technique strategies,etc.The corresponding management system is established and.Finally,the computer center room is successfully relocated in one time without interruption of hospital information system.
4.Clinical application of glycyrrhizic acid and its effect on cytochrome P 450
Jun MAO ; Huiru LIU ; Haohao WANG ; Yong JIN ; Xiangyun MENG
Chinese Journal of Primary Medicine and Pharmacy 2021;28(5):797-800
Glycyrrhizic acid, as the main active ingredient of Glycyrrhiza, has anti-inflammatory, antiviral, antitussive, expectorant, immunomodulatory and other pharmacological effects. In recent years, many new clinical uses of glycyrrhizic acid have been found, and glycyrrhizic acid has an effect on human and animal cytochrome P 450. This paper summarizes the clinical application of glycyrrhizic acid and its effect on cytochrome P 450, providing reference for clinical rational use of glycyrrhizic acid preparation.
5.Borneol is an inducer of rat hepatic CYP2D activity in vivo.
Jing-ya CHEN ; Jun-jun WANG ; Mo-ran MENG ; Yong CHEN
Acta Pharmaceutica Sinica 2015;50(4):459-463
Borneol is a traditional Chinese medicine. In the past few years, many studies showed that borneol can improve the bioavailability of other drugs, promoting drugs to cross the blood-brain barrier, so the potential drug interactions between borneol and other medicines have attracted great attention, but the influence of borneol to CYP450 and its isoforms are rarely reported. In this research, male Wistar rats were orally administered by borneol for 7 days, then the mRNA and protein expression and the activities of CYP2D were detected, we also compared the pharmacokinetic parameters of CYP2D's specific substrate between control group and borneol group. The results show that borneol (33, 100 and 300 mg x kg(-1) x d(-1)) have no significant effect on CYP2D, while the activites of CYP2D increased 1.71, 1.97 and 2.89 times comparing to the control group. At the same time, borneol (300 mg x kg(-1) x d(-1)) caused the C(max) decreased 10.6% (P > 0.05), AUC(0-∞) decreased 27.5% (P < 0.01), CL/F increased 41.1% (P < 0.01), V(z)/F increased 23.1% (P > 0.05) of dextromethorphan. Our data provided that borneol speed up dextromethorphan's elimination in vivo. Since the activity of CYP2D can be induced by borneol, the metabolic interactions might happen when borneol and the substrate drug CYP2D are used together.
Animals
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Aryl Hydrocarbon Hydroxylases
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metabolism
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Blood-Brain Barrier
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Bornanes
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pharmacology
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Cytochrome P-450 Enzyme Inducers
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pharmacology
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Dextromethorphan
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Drug Interactions
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Liver
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drug effects
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enzymology
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Male
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Medicine, Chinese Traditional
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RNA, Messenger
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Rats
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Rats, Wistar
6.Effect of Vocational Rehabilitation and Related Factors in Adult Mental Retarded Persons in Beijing
Yong LI ; Yaohong CHEN ; Cuixia SHAO ; Jun MENG ; Jiliang SHI ; Chengyi QU
Chinese Journal of Rehabilitation Theory and Practice 2011;17(5):415-417
Objective To investigate the effect of vocational rehabilitation and related factors in adult mental retarded persons in Beijing.Methods 152 mental retarded adult persons were investigated with Scale of Vocational Rehabilitation Effective for Adult with Mental Retarda⁃ tion. Results 59 (38.82%) persons improved their vocational ability after rehabilitation. The related factors of vocational rehabilitation included the causes of mental retardation and maladaptive behavior. Conclusion It is important for the vacational rehabilitation that the consultants deal with the maladaptive behavior appropriately.
8.Effect of exogenous calcium on seed germination and seedling physiological characteristics of Lycium ruthenium.
Duo-Hong HAN ; Shan-Ji LI ; En-Jun WANG ; Hong-Mei MENG ; Ye CHEN ; Yong ZHANG
China Journal of Chinese Materia Medica 2014;39(1):34-39
OBJECTIVEIn order to get the method for improving the salt resistance of Lycium ruthenium seeds and seedlings under NaCl stress, the seed germination and physiological characteristics of L. ruthenium seedlings was studied.
METHODSeveral physiological indexes of L. ruthenium seeds under NaCl stress, such as the germination rate (Gr), germination vigor (Gv), germination index (Gi), vigor index (Vi), and relative salt damage rate were measured. Other indexes of the seedlings like relative water contents (RWC) , chlorophyll contents, soluble protein contents, electrolyte leakage, the contents of malondialdehyde (MDA), and peroxidase (POD) were also measured.
RESULTNaCl at lower concentration could promote the seed germination but inhibit the seed germination at higher concentration. After the treatment by CaCl2 at the different concentrations, all germination indexes were increased. With the increase of salt concentration, the relative water contents and the contents of chlorophyll were decreased, the content of MDA and electrolyte leakage were increased. The change trend of POD activity showed the first increase and then decrease with the increase of salt concentration, which was similar to that of the soluble protein. After the treatment by CaCl2, relative water contents, chlorophyll and POD activities were decreased more slowly, and also electrolyte leakage and MDA contents increased slowly.
CONCLUSIONThe CaCl2 could significantly alleviate the damages to the seeds and seedlings of L. ruthenium under NaCl stress, and promote the salt resistance to the seeds and seedlings of L. ruthenium.
Calcium ; pharmacology ; Germination ; drug effects ; Lycium ; drug effects ; metabolism ; physiology ; Seedlings ; drug effects ; metabolism ; physiology ; Seeds ; drug effects ; metabolism ; physiology ; Sodium Chloride ; metabolism
9.Correlation of serum uric acid levels with the progression of parkinson's disease
Xianjun LI ; Yong LIU ; Li MENG ; Jun ZHANG ; Xueming WANG ; Zhe SONG
Clinical Medicine of China 2013;(3):278-280
Objective To discuss the relationships between serum uric acid levels and clinical stages,cognitive dysfunction in parkinson' s disease (PD).Methods Sixty patients of PD were enrolled,and their history,detailed physical examination UPDRS Ⅲ scale and mini-mental state score (MMSE) scale were performed to determine the Hoehn-Yahr stage of patients.At the same time 52 cases of healthy person were collected from the Health Examination Centers whose age,sex,and education matched with PD group as control group.The levels of serum uric acid in the two groups were examined and compared.Results The serum uric acid levels in PD group were significantly lower than those in normal control group((262.4 ±85.2) μmol/L vs (357.6 ±73.3) μmol/L) (t =1.013,P =0.005) ;There was no level correlation between different Hoehn-Yahr stage period of PD group (r =0.143,P > 0.05) ; There was no significant difference on serum uric acid levels between subgroup of PD patients (F =1.014,P =0.06) ;The M MSE score between PD group and normal control group had no significant difference (26.12 ± 2.87 vs 28.32 ± 2.17) (t =1.970,P =0.073).Conclusion Low level of the serum uric is likely to be a risk factor for PD,but cannot be used to assess the severity of disease and MMSE scale used to determine the cognitive impairment in PD is not sensitive enough.
10.Anterior reconstruction plate fixation for unstable posterior pelvic ring injuries
Jiannong JIANG ; Yong WANG ; Leiyan ZHANG ; Sichun HAO ; Weichun MENG ; Haiping JIANG ; Jiangang ZHOU ; Jun TAN ; Zhenhuan JIANG
Chinese Journal of Trauma 2012;28(8):730-735
Objective To discuss the surgical indications,relative merits and clinical outcomes of anterior reconstruction plate fixation for treating unstable posterior pelvic ring injuries.MethodsA retrospective study was done on clinical data of 36 patients with unstable posterior pelvic ring injuries treated with anterior reconstruction plate fixation from August 2004 to July 2010 and followed up for minimum one year.There were 25 males and 11 females,at mean age of 35.8 years ( range,13-62 years).There were two patients with anterior dislocation of the sacroiliac joint and 34 with posterior dislocation.According to Tile classification,there were four patients with type B fractures ( B1:3,B2:1 ) and 32 with type C fractures (C1-1:17,C1-2:12,C2:2,C3:1 ).Results All patients were followed up for average 2.3 years ( range,1-6 years).Fat liquefaction and superficial infection were founded in two patients who were cured by dressing change and frequent but low-dose blood transfusion.Eight patients were subjected to iatrogenic lateral femoral cutaneous nerve injury.Meanwhile,five of them was recovered after treatment with neurotrophic drugs,but there were still three patients leaving lateral thigh numbness.One patient had L5 nerve root injury due to pull force,and was recovered after three months of neurotrophic drug therapy.According to Matta and Tometta criteria,the reduction results were excellent in 23 patients,good in 11 and fair in four,with excellence rate of 94%.No reduction loss or implant failure occurred.According to Majeed scoring system,the clinical outcomes were excellent in 17 patients,good in 14,fair in four and poor in one,with excellence rate of 86%.Of the seven patients pre-operatively associated with sacral plexusinjury,three obtained full recovery,two got partial recovery and two were free from recovery.Conclusion The anterior reconstruction plate fixation takes advantages of wide surgical indications,simple exposure,low infection rate,satisfactory reduction and solid fixation and may be a main treatment method for unstable posterior pelvic ring injuries.