2.Detection of hydrogen phosphide in blood and lung tissue of patient with acute hydrogen phosphide poisoning.
Shao-feng FANG ; Li-hui GUI ; Yu-xin YANG ; Da-qing HAO ; Jing-zhuan XI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2005;23(2):82-82
Acute Disease
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Adult
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Chromatography, Gas
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Female
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Humans
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Lung
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chemistry
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Phosphines
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analysis
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blood
;
poisoning
3.Preparation and evaluation of intra-articular injectable sinomenine hydrochloride-loaded in situ liquid crystals.
Yu-lin CHEN ; Shuang-ying GUI ; Xin LIANG ; Sheng-mei WANG ; Xiao-jing JIANG
Acta Pharmaceutica Sinica 2016;51(1):132-139
Phytantriol (PT), ethanol (ET) and water were used to prepare in situ cubic liquid crystal (ISV2). The pseudo-ternary phase diagram of PT-ET-water was constructed and isotropic solution formulations were chosen for further optimization. The physicochemical properties of isotropic solution formulations were evaluated to optimize the composition of ISV2. In situ hexagonal liquid crystals (ISH2) were prepared based on the composition of ISV2 with the addition of vitamin E acetate (VitEA) and the amount of VitEA was optimized by in vitro release behavior. The phase structures of liquid crystalline gels formed by ISV2 and ISH2 in excess water were confirmed by crossed polarized light microscopy and small angle X-ray scattering, respectively. Rheological properties of ISV2 and ISH2 were studied by a DHR-2 rheometer. In vitro drug release studies were conducted by using a dialysis membrane diffusion method. Pharmacokinetics was investigated by determination of sinomenine hydrochloride (SMH) concentration in synovial membrane after intra-articular injection of SMH-loaded ISH2 in adjuvant-induced arthritis rats. The optimal ISV2 (PT/ET/water, 64 : 16 : 20, w/w/w) loaded with 6 mg x g(-1) of SMH showed a suitable pH, injectable and formed a cubic liquid crystalline gel in situ with minimum water absorption in the shortest time. The optimal ISV2 was able to sustain the drug release for 144 h. The optimal ISH2 system was prepared by addition of 5% VitEA into PT in the optimal ISV2 system. This ISH2 (PT/VitEA/ET/water, 60.8 : 3.2 : 16 : 20, w/w/w/w) was an injectable isotropic solution with suitable pH. The new ISH2 was able to sustain the drug release for more than 240 h. Local pharmacokinetics study indicated that the retention time and AUC(0-∞) of ISH2 group were increased significantly compared with that of SMH solution group and the AUC(0-∞) of ISH2 group was 6.01 times higher than that of SMH solution group. The developed ISH2 was suitable for intra-articular injection that may apply to patients in the treatment of rheumatoid arthritis.
Animals
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Chemistry, Pharmaceutical
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Diffusion
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Ethanol
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Fatty Alcohols
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Gels
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Injections, Intra-Articular
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Liquid Crystals
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Morphinans
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administration & dosage
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chemistry
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Rats
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Rheology
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Water
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alpha-Tocopherol
5.Expression profile of a novel germ cell-specific gene, TSCPA, in mice and human.
Zhendong, YU ; Bo, WU ; Aifa, TANG ; Jing, CHEN ; Xin, GUO ; Jie, QIN ; Yaoting, GUI ; Zhiming, CAI
Journal of Huazhong University of Science and Technology (Medical Sciences) 2009;29(5):535-9
In order to identify novel genes involved in spermatogenesis, testis cDNA samples from Balb/C mice of different postnatal days were hybridized with the whole mouse genome Affymetrix chip to screen the testis-specific genes. The characteristics of the selected genes were analyzed by RT-PCR as well as other bioinformatic tools. A novel differentially expressed testis-specific gene (GenBank Accession No: NM_029042) in the developmental stages of testes was identified, and named TSCPA. Cellular mapping prediction of TSCPA indicated that its protein was probably expressed in nuclei, and one putative domain (aa 332-377) was anchoring domain of cAMP-dependent type II PK. The result of subcellular localization of GFP-TSCPA fusion protein in Cos-7 cells showed that TSCPA protein was expressed in nuclei. RT-PCR analysis revealed that TSCPA was expressed specifically in mouse and human testis. TSCPA gene was expressed weakly in 21-day-old mouse testis and the expression was increased gradually from 38th day to 6th month of mouse testes. No expression of hTSCPA was found in cryptorchidism and Sertoli-cell-only syndrome patients. It was concluded that the expression profile of TSCPA in human and mice indicated that TSCPA might play an important role in spermatogenesis.
6.Efficacy observation of auricular point sticking in combination with a healthy diet for simple obesity in children
Yang CAO ; Xin-Yi WU ; Qing-Yi ZHAO ; Gui-Zhi MA ; Yin SHI ; Jing ZHOU
Journal of Acupuncture and Tuina Science 2021;19(6):475-480
Objective: To observe the clinical efficacy of combining auricular point sticking and a healthy diet to treat simple obesity in children aged 6-9 years old.Methods: A total of 190 eligible obese kids were divided into an observation group and a control group using the random number table method, with 95 cases in each group. The observation group was intervened by auricular point sticking plus guide on a healthy diet, while the control group was only provided with the guide on a healthy diet. The therapeutic efficacy was observed after intervention for three consecutive months, as well as the changes in body mass (BM), body mass index (BMI), waist circumference (WC), hip circumference (HC), and subcutaneous fat thickness. Results: After the 3-month intervention, the total effective rate was 91.6% in the observation group, versus 74.7% in the control group, and the between-group difference was statistically significant (P<0.01); in both groups, the BM, BMI, WC, HC, and subcutaneous fat thickness all decreased significantly (P<0.05), and were lower in the observation group than in the control group, showing statistical significance (P<0.05). Conclusion: Auricular point sticking plus a healthy diet is safe and effective in treating simple obesity in children, producing more significant efficacy than healthy diet intervention alone.
7.Comparative analysis of variable region of white spot syndrome virus genome in Penaeus vannamei in Guangxi, China.
Gui-Xiang TONG ; Xiao-Zheng LI ; Xin-Xian WEI ; Xin-Yu YE ; Ming-Yuan WU ; Zhen-Fa QIN ; Liu-Chun LAN ; Jing-Jing ZHOU
Chinese Journal of Virology 2014;30(1):51-56
Comparative analysis of variable region ORF14/15 genes of white spot syndrome virus (WSSV) genome in Guangxi Penaeus vannamei (P. vannamei) could provide useful information for the evaluation of genetic diversity and genetic evolutionary relationship among WSSV isolates from Guangxi, China and other places. Based on geographical and temporal considerations, 40 WSSV-positive P. vannamei samples were collected during the period between May 2010 and July 2013 from Beihai, Qinzhou, and Fangchenggang, which were the main P. vannamei production areas in Guangxi, and the variable region ORF14/15 genes of the WSSV genome from all infected samples were amplified by PCR and then subjected to cloning and sequence analysis. Pairwise and multiple alignment analysis was then conducted to evaluate the degree of genetic divergence between different strains. The variable region ORF14/15 genes from 25 of 40 WSSV positive samples were successfully cloned and sequenced; among the ORF14/15 genes of 25 WSSV-positive strains, 22 was 619 bp in length and 3 was 620 bp. All the 25 Guangxi strains carried a 5949-bp deletion in the ORF14/15 region relative to TH-96-II, which has the longest nucleotide sequence in this region; the deletion of Guangxi strains occurred in the middle region of ORF14/15 gene, with only 190 bp and 429 bp/ 430 bp at 5' and 3' ends, respectively, which were coincident with WSSV-IN-05-I in deletion length and position. Sixteen of 25 Guangxi strains had completely identical nucleotide sequences in the variable re gion, and the homology between other strains also exceeded 97.9%. There were single nucleotide substi tution, deletion, and insertion in the ORF14/15 region of Guangxi strains compared with other strains in GenBank. In the phylogenetic tree based on WSSV variable region ORF14/15, the Guangxi strains were closely related and formed a separate branch with Indian strain IN-05-I, but far from other strains in GenBank. The ORF14/15 gene of WSSV isolates in cultured P. vannamei in Guangxi has a large deletion in the middle of the variable region, and the Guangxi WSSV strains show no significant spatio-temporal differences; the Guangxi strains are closer in genetics to Indian strain IN-05-I than other strains in GenBank.
Animals
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China
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Cloning, Molecular
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Evolution, Molecular
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Genome, Viral
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genetics
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Genomics
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Penaeidae
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virology
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Phylogeny
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White spot syndrome virus 1
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genetics
8.Analysis on the effectiveness in 727 times of platelet transfusion.
Rong GUI ; Xin-Min NIE ; Xian-Hui WEN ; Jing LIU
Journal of Experimental Hematology 2012;20(2):381-385
This study was purposed to analyze the efficiency of platelet transfusion and to explore factors influencing platelet transfusion efficiency. 727 times of platelets transfusion in 254 patients in The Third Xiangya Hospital from September 2010 to May 2011 were analyzed retrospectively. Moreover, according to symptoms, times of platelet transfusion, blood types and splenomegaly, the corrected count of increment (CCI) and percentage of platelet recovery (PPR) were calculated for evaluation of platelet transfusion efficiency. The results showed that there were 456 effective transfusions out of 727 transfusions (62.72). Among them, the therapeutic effect of platelet transfusion for patients with acute blood loss anemia and chronic systemic diseases was relatively obvious, specially for chronic renal disease, the effective efficiency of them was 94.12. The patients with splenomegaly showed a significant impact on platelet transfusion efficiency (41.07). Analysis found that the frequency of platelet transfusion negatively correlated with transfusion efficiency. It is concluded that the transfusion frequency and splenomegaly are factors influencing the transfusion efficiency.
Adolescent
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Adult
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Aged
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Aged, 80 and over
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Child
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Child, Preschool
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Female
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Humans
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Infant
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Male
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Middle Aged
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Platelet Count
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Platelet Transfusion
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methods
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Retrospective Studies
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Treatment Outcome
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Young Adult
9.Macrolide resistance and molecular mechanisms in Mycoplasma pneumoniae
Deli XIN ; Xu HAN ; Zuhuang MI ; Jing LI ; Ling QIN ; Tianli WEI ; Xiaogeng CHEN ; Xijie LIU ; Ancun HOU ; Gui LI
Chinese Journal of Laboratory Medicine 2008;31(5):543-546
Objective To investigate status of macrolide resistance and determine molecular mechanisms in Mycoplasma pneumoniae.Nethods All of 370 throat swab specimens were cultured to isolate Mycoplasma pneumoniae.Mycoplasma pneumoniae isolates were identified by nested PCR for specific 16SrRNA gene.Antibiotic susceptibility test was done to identify acrolide resistant strains.23SrRNA gene wag amplified by nested PCR followed by direct automatic sequencing method.The DNA sequences were compared to the sequence of Mycoplasma pneumoniae M129(accession no.X68422)to find molecular mechanisms of drug resistance.Results Fifty clinical strains were isolated from 370 specimens.Of 50 strains.4 strains were susceptible to macrulide,46 strains were macrolide resistant with the percentage of 92%.MICs of resistant strains to erythromycin.Azithromycin and josamycin were elevated.The sequence of 23SrRNA gene in 4 Susceptible strains and the reference strain FH was identical to Mycoplagma pneumoniae gene in GenBank.46 resistant strains arbored a point mutation respectively,among them,40 strains had all A to G transition at position 2063.1 strain had an A to C transition at position 2063,the other five strains showed an A to G transition at position 2064.Conclusions Macrolide resistance in Mycoplasma pneumoniae iS very serious health conceru.The point mutation in 23SrRNA.Xpecailly predominant position 2063 mutation contributed to the macrolide resistance in Mycoplagma pneumoniae.The MICs of resistant strains to erythromycin,azithromycin and iosamycin are much higher than Mycoplasma pneumoniae reference strain FH.
10.Change of the serum interleukin 6 in patients with delayed encephalopathy after acute carbon monoxide poisoning.
Ren-jun GU ; Xia-hong WANG ; Ping ZHANG ; Hong LU ; Xin-sheng GUO ; Jing-gui SONG ; Fan ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2005;23(6):461-462
Acute Disease
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Adult
;
Aged
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Blood-Brain Barrier
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physiopathology
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Brain Diseases
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blood
;
chemically induced
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Carbon Monoxide Poisoning
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complications
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Female
;
Humans
;
Interleukin-6
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blood
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Male
;
Middle Aged