1.Relationship analysis of the expressions of heat shock protein 70 and heat shock protein 90 genes in bone marrow mononuclear cells with glucocorticoid-resistence in acute lymphoblastic leukemia patients
Ying LI ; Jiheng LIU ; Jing LIU
Journal of Chinese Physician 2013;(4):486-489
Objectives To investigate the relationships of the expressions of heat shock protein 70(HSP70) and HSP90 genes in bone marrow mononuclear cells (BMMNCs) with glucocorticoid (GC)-resistence (GCR) in acute lymphoblastic leukemia (ALL) patients.Methods The expressions of HSP70 and HSP90 in bone marrow mononuclear cells from 43 newly diagnosed ALL patients and 16 healthy volunteers were examined by real time polymerase chain reaction.Of them,43 patients received glucocorticoid therapy were divided into GC-sensitive (GCS) group and GC-resistant(GCR) group according to GC response.Results (1)The expressions of HSP70 mRNA (0.95 ± 0.36) and HSP90 mRNA (1.97 ± 0.63) in BMMNCs from ALL patients were significantly higher than that in the controls [(0.28 ±0.17)and (0.62 ±0.21),P<0.01]; (2)The expressions of HSP70 mRNA(1.09 ± 0.22)and HSP90 mRNA(2.18 ± 0.42) in BMMNCs from GCR group patients were significantly higher than that in the GCS group patients [(0.57 ±0.19)and (1.43 ± 0.35),P < 0.05,P < 0.01] ; (3)The expressions of HSP70 mRNA (0.97 ± 0.34)and HSP90 mRNA (2.01 ± 0.58) in BMMNCs from the ALL patients with high-degree tumor burden were significantly higher than that in the patients with low-degree tumor burden [(0.61 ±0.22) and (1.34 ±0.29),P <0.01].Conclusions The mRNA expressions of HSP70 and HSP90 in BMMNCs from GCR group patients were significantly increased.Detection of HSP90 and HSP70 expressions may help ALL patients for prognosis judgment,chemotherapy plan selection and therapeutic effect evaluation.
2.The effect of intrauterine growth restriction on the development of brain function in premature infants
Journal of Clinical Pediatrics 2017;35(7):525-528,536
Objective To explore the effect of intrauterine growth restriction (IUGR) on the development of brain function in premature infants. Methods A total of 110 premature infants of gestation age of 32-36 weeks were monitored by NicoletOne neonatal cerebral function monitor within 72 hours after birth during January 2015 to February 2016. There were 50 small for gestational age infants (SGA) and 60 appropriate for gestational age infants (AGA). They were continuously monitored for 4-6 hours every time, and the indices of aEEG continuity, sleep wake cycle (SWC), inter-burst interval (IBI), minimum and maximum voltage were compared between two groups. Results The frequency of aEEG continuity, the rate of SWC, and the maximum and minimum voltage in SGA group were all lower than those in AGA group, while the IBI was longer than that in AGA group, and there were significant differences (P<0.05). The frequency of aEEG continuity, the rate of SWC, IBI, and the minimum and maximum voltage were similar (all P> 0.05) among birth weight
3.Screen of antagonistic strains against Streptococcus mutans and investigation of the curb activity of ferment filtrate
Ying LIU ; Jing ZHANG ; Mingyou TONG
Journal of Practical Stomatology 2001;0(01):-
Objective: To obtain a strain which has stronger antagonistic effect against Streptococcus mutans(S. mutans), and then to study the antagonistic effect of the fermentation filtrate of the strains. Method:Surface soil samples were harvested and used in an in vitro bacteria culture system for screening of antagonistic strains against Streptococcus mutans. Ferment filtrate of the strains was respectively prepared and the antagonism of the filtrate against S. mutans was examined.Result:A strain with strong restrain effect on Streptococcus mutans was found and was identified to be Bacillus licheniformis. The strain was named strain 1#. At pH 7.0, 150 r/min and constant temperature of 30 ℃ cultivated for 24 hours,the antagonistic energy of ferment filtrate was 1 500 IU/ml,the ferment filtrate showed strong heat stability, at 37 ℃ for 1 hour, the activity decreased by 35%; at 60 ℃ for 30 min, by 47%, for 1 h, by 50%, at 100 ℃,the activity maintained 39%.The optimum pH for the activity of the ferment filtrate was 7.0, at pH 3.0, the activity kept 70% and at pH 11.0, 65%.Conclusion:The fermentation filtrate of strain 1# of Bacillus licheniformis is antagonistic against S. mutans.
4.Research progresses of applying MALDI-TOF mass spectrometry in the detection of β-lactamase
Jiajia YU ; Jing YU ; Ying LIU
Journal of Shanghai Jiaotong University(Medical Science) 2017;37(4):566-570
Matrix assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS) is an emerging tool for detecting microorganisms. It can be used not only for rapid identification of microorganisms, but also for the research of resistance mechanisms. Producing β-lactamase is the main mechanism for resistance of β-lactam antibiotics in Gram-negative bacilli. Currently using MALDI-TOF MS for rapid detection of bacterialβ-lactamase has been widely reported, including detection of β-lactam hydrolysis activity of β-lactamase, direct detection of β-lactamase molecule, peptide and relevant proteins, and detection of the single nucleotide polymorphisms (SNPs) of β-lactamase gene. This paper reviews current application of MALDI-TOF MS to the detection of β-lactamase based on the latest research findings.
5.Nursing strategy of primary PCI in the aged with acute coronary syndrome
Chinese Journal of Interventional Cardiology 1996;0(04):-
3 cm ?3 cm) in 19 cases (0.8%). No nursing-related complications occurred in-hospital. Conclusion Standardized nursing management is related to the prognosis of aged ACS patients and is an important part of the perioperative preparation for primary PCI.
6.Involvement of Caspase-dependent Mitochondrial Pathway in CORM-2 Induced Apoptosis in Neuronal Cells and Mechanism of Intervention Effect of Xingnaojing Injection
Yilin LIU ; Ying HONG ; Jing WANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(8):1725-1734
This study was aimed to investigate the mechanism of CO-releasing molecules (CORM-2) induced apoptosis and the intervention effect of Xingnaojing (XNJ) Injection in neuronal cells of rats. Optical microscope was applied to observe morphologic changes of neuronal cells. MTT assay was performed to assess the survival rates of CORM-2 on neuronal cells. Apoptosis was examined by flow cytometric analysis and the expression of relative proteins was measured by western blotting analysis. At the same time the morphologic changes, survival rates and expression of relative proteins of neuronal cells were also checked after XNJ treatment. The results showed that CORM-2 can influence survival rates in a time- and concentration-dependent manner. Survival rates decreased gradually after the cultures subjected to 24 h with 100 μmol·L-1, 200 μmol·L-1, 400 μmol·L-1 and 800 μmol·L-1 of CORM-2. It can induce neuronal apoptosis and activate Caspase-3, Caspase-9 and Cytochrome C in a concentration-dependent manner. The neuronal cells were treated with 200 μmol·L-1 of CORM-2 and then incubated with 10 mL·L-1 and 20 mL·L-1 XNJ injection for 20 h. It turned out early neuronal apoptosis decreased and the expression of Caspase-3, Caspase-9 and Cytochrome C also decreased. To sum up, CORM-2 may induce neuronal apoptosis through Caspase-dependent mitochondrial pathway, which can be intervened by XNJ Injection through inhibiting Caspase-dependent mitochondrial pathway.
7.Comparison of efficacy and safety of different chemotherapy regimens for progressive patients with brain metastasis of small cell lung cancer after radiotherapy
Ying LIU ; Ying WANG ; Xianhong LIU ; Jing ZHU ; Ying XIN ; Junfeng WANG ; Kai NIU ; Ying CHENG
Cancer Research and Clinic 2017;29(3):172-175,179
Objective To analyze the efficacy and safety of different chemotherapy regimens for treatment of progressive patients with small cell lung cancer (SCLC) brain metastasis after radiotherapy. Methods 96 SCLC brain metastasis patients with progressive intracranial lesions after radiotherapy were divided into four groups: carmustine group (Group A, 28 cases), temozolomide group (Group B, 19 cases), topotecan group (Group C, 24 cases) and no chemotherapy group (Group D, 25 cases). Results In terms of brain metastases, there were no complete response cases in the whole groups. The rates of partial remission (PR), stable disease (SD) and progression of disease (PD) in Group A were 17.8%(5/28), 53.6%(15/28) and 28.6 % (8/28), respectively, the response rate (RR) of intracranial lesions was 17.9 % (5/28), and disease control (CR+PR+SD) rate was 71.4%(20/28). The rates of PR, SD and PD in Group B were 15.8%(3/19), 63.2 % (12/19) and 21.1 % (4/19), respectively, the RR of intracranial lesions was 15.8 % (3/19), and disease control rate was 78.9 % (15/19). The rates of PR, SD and PD in Group D were 8.3 % (2/24), 54.2 %(13/24) and 37.5 % (9/24), respectively, the RR rate of intracranial lesions was 8.3 % (2/24), and disease control rate was 62.5 % (15/24). In Group D, there was no response case, and 20 patients with PD (80.0 %) were found. The median progression-free survivals (PFSs) were (3.64 ±0.43) months, (4.68 ±0.49) months,(3.58 ±0.50) months, (2.60 ±0.31) months in Group A, B, C and D, respectively, and the median overall survivals (OSs) were (18.80±1.74) months, (18.76±1.85) months, (19.10±1.64) months and (9.64±0.84) months, respectively. The median OS of Group A, B or C was longer than that of Group D (P=0.002). The differences of grade Ⅲ-Ⅳhematologic toxicities among the four subgroups were not statistically different. Patients in Group B had better tolerance to nausea and vomit. In Group D, the central nervous system symptoms such as fatigue and headache occurred frequently. Conclusions The response rate and OS of SCLC brain metastasis patients with progressive intracranial lesions after radiotherapy are improved after chemotherapy, however, PFS is not significantly prolonged. The efficacies of carmustine, temozolomide and topotecan are similar in short and long term, besides, temozolomide shows less adverse events and a higher disease control rate. The application of chemotherapy that could penetrate the blood-brain barrier can improve the efficacy on SCLC brain metastasis patients with progressive intracranial lesions after radiotherapy with well tolerance.
8.Hydrops fetalis due to placental chorioangioma: report of a case.
Jing ZHOU ; Zhi-wei LIU ; Ying-ying SHI
Chinese Journal of Pediatrics 2006;44(8):635-635
Adult
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Female
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Hemangioma
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complications
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diagnosis
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physiopathology
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Humans
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Hydrops Fetalis
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diagnosis
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etiology
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physiopathology
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Infant, Newborn
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Placenta Diseases
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diagnosis
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physiopathology
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Pregnancy
9.Twelve Cases of Hiatal Hernia in Neonates
li-ying, RONG ; zhe, LIU ; jing, CHEN ; jing, GUO
Journal of Applied Clinical Pediatrics 2006;0(23):-
Objective To make hiatal hernia(HH) children grow and develop well by making correct early diagnosis and reducing misdiagnosis.Methods Reviewing clinical data of 12 patients with HH,including clinical character,X-ray diagnosis,correct examination,treatment and prognosis.Results Of 12 patients,9 cases were left HH,and 3 cases were right HH.All of them had internal expectant treatment;4 of them had operation.All of them had a good prognosis.Conclusions X-ray radiograph is a chief method of diagnosis of hiatal hernia.It is important to choose a specific position properly during radiograph examination.
10.Study of carbapenem-resistant genes in a strain of Myroides odoratimimus and clinical therapy for its infection
Jingxian LIU ; Jing YU ; Feng CHEN ; Ying LIU
Chinese Journal of Clinical Infectious Diseases 2015;8(1):53-57
Objective To study carbapenem-resistant genes in a Myroides odoratimimus strain and clinical therapy.Methods A strain of Myroides odoratimimus was isolated from nephrostomy drainage fluid of a patient with urinary tract infection in Xinhua Hospital in May 2013.MicroflexTM MALDI-TOF MS and 16S rDNA sequencing were performed for strain identification.Vitek-2 Compact combined with E-test method was used for antibiotic susceptibility test.Modified Hodge test and imipenem/imipenem-inhibitor (IP/IPI)E-test were performed for drug-resistant phenotype screening.Carbapenemase genes blaMUS-1,blaVIM-1,blaVIM-2,blaIMP-1,blaIMP-2,blaNDM-1,blaOXA-48 and blaGESwere amplified by PCR,and the positive products were sequenced and analyzed.Results The isolated strain was identified as Myroides odoratimimus.The strain was resistant to 17 antibacterial agents,and the minimum inhibitory concentration (MIC) of imipenem was ≥ 16 μg/mL,while it was sensitive to minocycline (MIC =0.38 μg/mL) and intermediate to meropenem (MIC =6 μg/mL).It was negative in modified Hodge test but positive in IP/IPI E-test (IP/IPI≥ 8).blaMUS-1 gene was detected by PCR,and further confirmed by sequencing.Meropenem combined with minocycline was effective for the patient.Conclusion Carbapenem-resistance in this Myroides odoratimimus strain may be related to blaMUS-1 gene,and appropriate therapy for its infection should be based on the result of antibiotic susceptibility test.