2.Changes of neuronal activities after gut electrical stimulation with different parameters and locations in lateral hypothalamus area of obese rats.
Yun, YAN ; Xue-Lian, XIANG ; Wei, QIAN ; Jun-Ying, XU ; Xiao-Hua, HOU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2014;34(4):510-5
This study tested the effects of the gastrointestinal pulse train electrical stimulation with different parameters and at different locations on the neuronal activities of the lateral hypothalamus area (LHA) in obese rats in order to find the optimal stimulation parameter and location. Eight gastric electrical stimulations (GES) with different parameters were performed and the neuronal activities of gastric-distension responsive (GD-R) neurons in LHA were observed. The effects of stimulations with 8 parameters were compared to find the optimal parameter. Then the optimal parameter was used to perform electrical stimulation at duodenum and ileum, and the effects of the duodenal and ileac stimulation on the GD-R neurons in LHA were compared with the gastric stimulation of optimal parameter. The results showed that GES with the lowest energy parameter (0.3 ms, 3 mA, 20 Hz, 2 s on, 3 s off) activated the least neurons. The effects of GES with other parameters whose pulse width was 0.3 ms were not significantly different from those of the lowest energy parameter. Most gastric stimulations whose pulse width was 3 ms activated more LHA neurons than the smallest energy parameter stimulation, and the effects of those 3 ms gastric stimulations were similar. Accordingly, the lowest energy parameter was recognized as the optimal parameter. The effects of stimulations with the optimal parameter at stomach, duodenum and ileum on the LHA neuronal activities were not different. Collectively, gastrointestinal electrical stimulation (GIES) with relatively large pulse width might have stronger effects to the neuronal activities of GD-R neurons in LHA of obese rats. The effects of the GIES at different locations (stomach, duodenum and ileum) on those neurons are similar, and GES is preferential because of its easy clinical performance and safety.
3.Exploration for the pressure ulcer knowledge training to nurses
Xue-Lian JIA ; Cui-Xiang CHENG
Chinese Journal of Modern Nursing 2012;18(17):2068-2070
Objective To observe the result of pressure ulcer knowledge training to nurses,discuss the relationship between the training effect and the spacing interval preliminarily,compare the trairning effect of nurse between the different level nurses,so as to provide evidence for later training.Methods The training included theory training and skill training was adopted among 43 nurses.The test was launched before training,2 weeks after training,12 weeks after training,and 24 weeks after training.Compared the score and the yield between different time points,different level nurses.Results The test qualified rate before training was 32.6%,2 weeks and 12 weeks after the training respectively was 95.3% and 87.8%,but the test qualified rate was dropped to 57.9% in 24 weeks afer the training.Conelusions Pressure ulcer knowledge training to nurses can significantly improve the knowledge level of pressure ulcer of nurses,while a long-term,systematic training is needed.
4.Protein-losing gastropathy in a girl.
Jie LIU ; Hong MEI ; Bao-Xiang WANG ; Xue-Lian HE
Chinese Journal of Contemporary Pediatrics 2014;16(10):1057-1059
Child, Preschool
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Edema
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diagnosis
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Female
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Humans
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Hypoproteinemia
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diagnosis
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Stomach Diseases
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diagnosis
5.Serotype distribution and drug resistance of Streptococcus pneumoniae in hospitalized patients in Yulin, Guangxi
QIU Dan-ping ; LI Tai-jie ; WANG Bai-lian ; LI Ming-qiang ; XUE Ye ; QIN Mei-xiang ; JIANG Dong
China Tropical Medicine 2022;22(11):1037-
Abstract: Objective To analyze the serotype distribution, drug resistance rate and drug resistance gene carrying of Streptococcus pneumoniae isolates in hospitalized patients, and evaluate the coverage of the vaccine to the serotype of Streptococcus pneumoniae in this area, so as to provide reference for the rational use of antibiotics in clinic. Methods A total of 150 strains of non-repetitive Streptococcus pneumoniae isolated from inpatients from January 2015 to December 2019 were collected for serotyping and antimicrobial sensitivity test. The carrying rates of pbp2b, ermB and tetM were detected by PCR. Results The PCR classification rate of 150 strains of Streptococcus pneumoniae was 93.1%, and the classification rate of capsular swelling test was 100%, and a total of 19 serotypes were divided, mainly 19F and 6B. Children's serotypes were predominantly 19F, 6B, and 15A; adult serotypes were predominantly 19F, 14, and 23F. The coverage rates of the PCV7, PCV10, PCV13 and PPV23 vaccines were 36.8%, 42.1%, 57.9% and 68.4%, respectively. Strains with serotypes of 19F, 6B, 3, and 23F had higher rates of resistance to antimicrobials. The sensitivity of Streptococcus pneumoniae to penicillin was greater than 96.0%. Antimicrobials with significant differences in resistance rates between invasive and non-invasive strains were penicillin, moxifloxacin, and levofloxacin. The percentage of strains carrying both ermB and tetM resistance genes was 96.0%, and the concordance rate between pbp2b, ermB and tetM resistance genes and the resistance phenotype was >98.0%. A total of 10 multi-resistance combinations were detected, with a multi-resistance rate of 62.6%, and the multi-drug resistance pattern of Streptococcus pneumoniae was mainly concentrated in the 19F and 6B serotypes. Conclusion There are significant age differences in the serotypes of Streptococcus pneumoniae in this area. The vaccine currently used has low coverage in this region and therefore offer limited protection to the population. The drug resistance rates of Streptococcus pneumoniae varied significantly among serotypes. Erythromycin and tetracycline are not recommended for clinical treatment of Streptococcus pneumoniae. Penicillin can still be used as the first choice for clinical treatment of Streptococcus pneumoniae infection.
6.Microneurosurgery for pituitary adenoma by supraorbital keyhole or endonasal transsphenoidal approaches
Xue-Yuan LI ; Xin-Gang LI ; Xue-Guang ZHANG ; Lian-Qun ZHANG ; Xiang-Yu MA ; Peng ZHAO
Chinese Journal of Neuromedicine 2009;8(12):1255-1258
Objective To compare the clinical effects of microneurosurgery by supraorbital key-hole or endonasal transsphenoidal approaches in the treatment of pituitary adenoma and investigate their complications. Methods We retrospectively analyzed the data of 87 patients with pituitary adenoma of which the anteroposterior diameter was less than 3 cm. These patients, admitted to our hospital from May, 2006 to June, 2008, were operated in an endoscope-assisted microsurgical manner via a supraorbital key-hole approach (n=42) or an endonasal transsphenoidal approach (n=45). The efficacy of these two approaches was compared and their complications were observed. Results The excision rate of the pituitary adenoma developing on or around the sella turcica operated through the supraorbital key-hole approach was significantly higher than that through the endonasal transsphenoidal approach(P< 0.05); while that of microadenoma or adenoma developing towards the sphenoid sinus operated through the supraorbital keyhole approach was statistically lower than that through the endonasal transsphenoidal approach (P<0.05). No obvious differences on the improvement of endocrine secretion, visual acuity and field was noted in these two approaches (P>0.05). The incidence rate of epistaxis and unilateral dysosphresia in the supraorbital key-hole approach was significantly lower as compared with that in the endonasal transsphenoidal approach (P<0.05). Conclusion Rarely having such complications as dysosphresia, epistaxis and sphenoiditis, neuroendoscopic surgery through supraorbital key-hole approach is the best way of treating the pituitary adenoma developing on or around the sella turcica and worth to promote in clinic.
7.Detection of bcr/abl fusion gene changes in patients with chronic myeloid leukemia after allo-HSCT by real-time quantitative reverse transcription polymerase chain reaction and its significance.
Mei XUE ; Heng-Xiang WANG ; Lian-Ning DUAN ; Hong-Min YAN ; Ling ZHU ; Jing LIU ; Li DING
Journal of Experimental Hematology 2008;16(6):1350-1353
This study was aimed to detect the changes of bcr/able gene level in ph+ CML patients at different stages after allo-HSCT by real-time quantitative PCR and to evaluate the significance of this detection. The serial detection of bcr/abl fusion gene levels in 21 cases of CML treated with allo-HSCT was performed by RQ-PCR. The results showed that the bcr/able fusion gene could not be detected in 7 out 21 CML cases with positive fusion gene after allo-HSCT, while the bcr/abl fusion gene of different levels could be detected in 14 cases within 1-6 months. Dynamic detection indicated that the bcr/abl fusion gene levels in 9 cases were lower with relative value 0.0074%-0.088% and then could not be detected within 3-7 months after allo-HSCT. The bcr/abl fusion gene levels in 5 cases diagnosed as molecular relapse were between 0.077%-75%. The bcr/abl fusion gene levels in 1 out of 5 cases were 0.95%, 1.5%, and 0.16% in month 1, 2 and 3, respectively, and turned to negative in the month 4 without any treatment after allo-HSCT. 2 cases received the donor peripheral blood stem cell infusion, and then their bcr/abl mRNA levels could not be detected in bone marrow. Another 2 cases developed to the hematologic relapse, 1 out of 2 cases reached CR again after infusion of donor peripheral blood stem cells and chemotherapy, the other one died. It is concluded that serial quantifications of bcr/abl mRNA levels by RQ-PCR are reliable and can be used to detect the MRD, to monitor the outcome and to predict the relapse.
Adolescent
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Adult
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Female
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Fusion Proteins, bcr-abl
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genetics
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Genes, abl
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Hematopoietic Stem Cell Transplantation
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Humans
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive
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genetics
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surgery
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Male
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Middle Aged
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Reverse Transcriptase Polymerase Chain Reaction
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Young Adult
8.Study on content of two sesquiterpenes in Alpinia oxyphylla.
Xiu-xiang LV ; Lei HOU ; Wen-hua HUANG ; Bao-lin GUO ; Lian-xue ZHANG ; Jing-guang YU
China Journal of Chinese Materia Medica 2012;37(17):2589-2593
OBJECTIVETo develop an HPLC method for determining oxyphyllenodiol A (1) and teuhetenone A (2) contained in Alpinia oxyphylla and to compare the contents of the two components contained in medicinal materials and prepared herbal medicines in pieces sold in the market and different fractions.
METHODHPLC and Waters sunfire C18 column (4. 6 mm x 250 mm, 5 microm) were adopted for gradient elute with the mobile phase of acetonitrile and water. The flow rate was 1.0 mL x min(-1) and the detection wavelength was 250 nm.
RESULT1 and 2 showed a good linear relationship within the range of 0.1296 - 0.8640 microg and 0.1635 - 1.0900 microg respectively, with the average recoveries of 99.08% and 97.80%. Their content ranges were 0.0059% - 0.0149% and 0.0080% - 0.0164% in different samples. The mean value of 1 and 2 were 0.0085% and 0.0104% in the whole fruits, and 0.0137% and 0.0157% in the seeds. They were undetected in the nutshells.
CONCLUSIONThe method is so precise, accurate and highly reproducible that it can be used to determine the contents of oxyphyllenodiol A and teuhetenone A in A. oxyphylla. The contents of the two components are mainly extracted from the seeds, with certain difference among different samples. There are a higher contents and no significant difference in the salted and raw seeds.
Alpinia ; chemistry ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; isolation & purification ; Sesquiterpenes ; analysis ; isolation & purification
9.Study of plasmid-mediated 16S rRNA methylase genes and drug-resistant transferability of Acinetobacter baumannii isolated from burn ward.
Tian-Xiang LIU ; Xiao-Dong XUE ; Lian-Hua WEI ; Yong-Ming ZHANG
Chinese Journal of Burns 2009;25(2):98-102
OBJECTIVETo investigate the drug-resistance of Acinetobacter baumannii (Ab) isolated from patients in burn ward, and study the incidence of 16S rRNA methylase genes mediated high-level aminoglycoside drug-resistance and its mechanism of transfer.
METHODSA total of 40 Ab clinical isolates were collected from burn ward in Gansu Province People's Hospital from May 2006 to Dec. 2007. The sensitivity of Ab for 20 antibiotics were determinated by K-B agar diffusion. The minimal inhibitory concentrations (MIC) of amikacin, gentamicin, tobramycin, netilmicin, isepamicin and kanamycin against Ab strains were determinated by agar dilution. Five kinds of 16S rRNA methylase genes including armA, rmtA, rmtB, rmtC, rmtD were amplified by PCR, the positive PCR-products were purified and sequenced, and the plasmid were extracted by alkaline lysis. The transferability of drug-resistance were determinated by conjugation and plasmid transformation tests.
RESULTSThe drug-resistance rates of Ab against six aminoglycosides antibiotics was 72.5%, 72.5%, 70.0%, 67.5%, 70.0%, 70.0%, respectively. Twenty five strains were resistant to six aminoglycosides antibiotics (62.5%), among which 10 isolates were armA-positive (40.0%); rmtA, rmtB, rmtC and rmtD-positive isolates were not found. Ten transformants and 10 conjugates showed high-level resistance against aminoglycosides antibiotics, all of which the value of MIC > or = 256 microg/mL carried armA gene.
CONCLUSIONSThe drug-resistance of Ab clinical isolates have high drug-resistance. 16S rRNA methylases gene exists in Ab and locates in plasmid chromosome.
Acinetobacter baumannii ; enzymology ; genetics ; isolation & purification ; Burn Units ; Burns ; microbiology ; Drug Resistance, Bacterial ; genetics ; Genes, Bacterial ; Genes, rRNA ; Humans ; Methyltransferases ; genetics ; Plasmids
10.The study on the diagnostic value of pregnancy-associated plasma protein-A in acute coronary syndrome patients
Feng XUE ; Xiang-jun YANG ; Hong-xia LI ; Lian-hua HAN ; Jian-ping SONG ; Ting-bo JIANG ; Zhi-hua LIU ; Wen-ping JIAANG ;
Chinese Journal of Postgraduates of Medicine 2009;32(7):20-22
Objective To investigate the diagnostic value of pregnancy-associated plasma protein-A (PAPP-A) in acute coronary syndrome (ACS) patients. Methods Forty-nine cTnI-negative patients with coronary artery disease who were documented by angiography [31 cases with ACS,18 cases with stable angina (SAP)], and 28 healthy persons were selected as controls. PAPP-A and hs-CRP were analysed with enzyme-linked immunosorbent assay (ELISA). Results Circulating PAPP-A and ha-CRP levels were significandy higher in patients with ACS than those in patients with SAP and controls (P < 0.05). PAPP-A threshold value of 2.79 μg/ml identified patients who had ACS with a sensitivity of 81.0% and a specificity of 84.6%. PAPP-A levels were correlated with hs-CRP levels in patients with ACS (r = 0.418, P < 0.01). Conclusion PAPP-A is a strong candidate marker of ACS, especially to eTnl-negative patients.