1.Construction of Baker’s Yeast Strains with High Fermentative Abilities in both Lean and Sweet Doughs
Tian-Xiao JIANG ; Man XU ; Zhen WANG ; Dong-Guang XIAO ;
Microbiology 1992;0(04):-
Two parental strains BY-14 and BY-6,with high leavening ability in lean and sweet dough respectively,were selected.Through spore production and separation,two haploids with opposition types were selected for cross-breeding.At last one hybridization strain was obtained,with good fermentation ability as BY-14 in lean dough and better than BY-6 by 25%in sweet dough.
2.Duraplasty with Neuropatch versus autologous fascia lata for Chiari I malformation with syringomyelia: A comparative study
LIU BIN ; WANG ZHEN-YU ; LI ZHEN-DONG ; MA CHANG-CHENG ; SUN JIAN-JUN ; CHEN XIAO-DONG
Journal of Peking University(Health Sciences) 2005;37(6):629-632
Objective: To evaluate the outcome and postoperative reaction of dural substitute (Neuropatch) applying in the treatment of Chiari I malformation(CMI) associated with syringomyelia(SM). Methods:Forty patients of CMI associated with SM were operated in our department from Jul. 2002 to Jul. 2004. All patients underwent posterior cranial fossa decompression and duraplasty. They were divided into two groups, 20 patients being repaired with Neuropatch (Neuropatch group), and the others with autologous fascia lata (fascia group). There were 6 males and 14 females in Neuropatch group and 10 males and 10 females in fascia group. The operations were performed under general anesthesia via suboccipital approach and the extent of posterior cranial fossa decompression ranged from 20 cm2 (5 cm×4 cm) to 35 cm2 (5 cm×7 cm). The removal of posterior arch of atlas depended on the extent of tonsillar herniation, and the dura was opened in Y shape. The Neuropatch was cut into triangular shape, and the same sized autologous fascia lata was used in fascia group. The patches were sutured tightly to the dura matter in each group. The incision was closed layer by layer and drainage was used, if necessary. Antibiotics and hormone were routinely used. The duration of operation, postoperative fever were evaluated, the outcome of the operation was evaluated by Tator scale, and the data were analyzed with statistic software SPSS 10.0. Results: There were12 patients (60%) who suffered from postoperative fever in the Neuropatch group, and 9 patients (45%) in the fascia group(χ2=0.902,P=0.342). Seventeen patients in each group were improved postoperatively. The duration of operation, postoperative fever and antibiotics used were compared between the two groups. No significant difference was found, but the duration of postoperative fever and the time of hormone used were different. There were no postoperative infections that occurred after the follow up for 1 to 2 years, except for one patient in fascia group who developed infective granuloma and recovered later by treatment. Conclusion: Neuropatch is a useful dural substitute for the repair of dural defects in the treatment of CMI associated with syringomyelia.
3.Effects of 1320 nm non-ablative laser on the proliferation of human dermal fibroblasts and the secretion of basic fibroblast growth factor and transforming growth factor-?1
Zhen-Xiao ZHENG ; Ai-E XU ; Xiao-Dong WEI ; Hao CHENG ;
Chinese Journal of Dermatology 2003;0(12):-
Objective To determine the effects of 1320 nm non-ablative laser on the proliferation of human dermal fibroblasts,and the secretion of basic fibroblast growth factor(bFGF)and transforming growth factor-?1(TGF-?1)in vitro.Methods Human dermal fibroblasts were cultured,and irradiated three times by 1320 nm laser at a dose of 15,20 and 24 J/cm~2,respectively.The levels of bFGF and TGF-?1 were examined by ELISA at 0,24,48 and 72h after the irradiation.The number of fibroblasts before and after irradiation were determined.Results The number of fibroblasts and the secretion of bFGF both in- creased after the irradiation at the doses of 20 J/cm~2 and 24 J/cm~2(P
5.Effect of early activities combined with evodia hot salt pack applying to the navel in prophylaxis against abdominal distension after surgery for gynecological malignancy
Xiao-Ling LIN ; Dong-Xia LIU ; Hui-Zhen DENG ; Zhen-Yan LI
Chinese Journal of Modern Nursing 2011;17(28):3379-3381
Objective To investigate the effects of early activities combined with evodia hot salt pack applying to the navel in prophylaxis against abdominal distension after surgery for gynecological malignancies.Methods 318 patients suffered from gynecological malignancies were randomly divided into three groups,activity group (n =102),vitamin B1 group ( n =110) and evodia group ( n =106 ).The activity group began activities within 24 hours after surgery; the vitamin B1 group,in addition to the traditional nursing,received injection of vitamin B1 through tsu-san-li meridians,each side with 50mg; the evodia group,besides the activities,was managed with evodia mixed with hot salt pack applied to the navel.The incidence of abdominal distension,the average time of bowel sound recovery,the first time of flatus passing and defecation of the three groups were compared.Results The incidence of abdominal distension in the evodia group ( 16.9% ) was significantly lower than that in the activity group (55.9%) and the vitamin B1 group (67.3%) ( x2 =70.50,P < 0.01 ).The average time of bowel sound recovery,the first time flatus passing and defecation in the evodia group [ (30.02 ±4.37)h,(42.16 ± 16.03 )h,(72.62 ± 20.79 )h] was significantly shorter than those in the activity group [ (40.57 ±5.27)h,(74.25 ± 12.14)h,(135.33 ±40.18) h] and the vitamin B1 group [ (44.23 ± 12.16)h,(77.25±16.32)h,(139.71 ±38.25)h] (F=8.88,4.37,5.49; P<0.01).Conclusions Early activities after surgery combined with evodia hot salt pack applying to the navel could effectively facilitate the recovery of gastrointestinal function for patients suffered from gynecological malignancies and prevent abdominal distension.
6.The infection characteristics of urinary E.coli after kidney transplantation and virulence factor detection
Xiao WANG ; Qinghai WANG ; Yiming YUE ; Tao HUANG ; Jianlei JI ; Hong LI ; Shujuan LI ; Zhen DONG
Chinese Journal of Organ Transplantation 2017;38(1):11-14
Objective To analyze the clinical characteristics of urinary tract infection after kidney transplantation and to analyze the distribution of pathogenic virulence factors.Methods From January 2014 to June 2016,a total of 255 cases were subjected to DCD renal transplantation in our center,and 45 cases of urinary tract infection occurred after operation.Among them,urinary tract E.coli infection occurred in 32 cases.The virulence factors gene aer,hly,irp2 and iucD in the 32 strains of E.coli isolated from urine were tested using PCR and multiple PCR.Results Thirty-two cases (71.1%) of urinary tract infection after renal transplantation was caused by E.coli,and divided into 9 cases of nosocomial infection group,and 23 cases of community-acquired group.The positive rate for aer,hly,irp2 and iucD in Nosocomial infection group was 66.7%,33.3%,88.9% and 77.8%,and that in community-acquired group was 30.4%,8.70%,39.1% and 34.7%,respectively.There were statistically significant differences among four kinds of virulence factors between two groups (P<0.05).The positive rate of virulence factors was significantly higher in nosocomial infection group than in community-acquired groups.The total resistance rate was 84.38%,and there was significarit difference in multi-drug resistance rate between two groups (P<0.01).Conclusion E.coli is the main pathogenic bacteria of urinary tract infection after renal transplantation,especially nosocomial infections.The detection rate of virulence factor is high,and the multiple drug resistance is outstanding,so the attention should be paid clinically.
7.Study on "Hegu (LI 4) regulates face and mouth" based on palmomental reflex.
Xiao-hua YU ; Zhen-jie YANG ; Fu-dong WU ; Qi-wen TAN
Chinese Acupuncture & Moxibustion 2014;34(10):1037-1039
OBJECTIVETo explore the correlation between hand and face-mouth, so as to provide nerve reflex basis for the theory "Hegu (LI 4) regulates face and mouth".
METHODSSeven hundred and sixty-three participants who met the inclusive criteria were divided into different age groups. The skin around participants' thenar eminence was gently scraped to be observed whether there was an involuntary movement around the face or mouth, which was palmomental reflex. The results of palmomental reflex were recorded.
RESULTSThe total occurrence rate of palmomental reflex was 46.26%. For those who were 0 to 1 years old, the palmomental reflex was all positive; for those who were 21 to 36 years old, the positive rate was 20.45%, which was the lowest; for those who were 65 to 85 years old, more than half of them were positive. The majority of those who were 0 to 2 years old were bilateral positive palmomental reflex, while the majority of those who were 65 to 85 years old were unilateral positive palmomental reflex.
CONCLUSIONThere is a certain connection between hand and face-mouth. The occurrence rate of palmomental reflex changes from high to low over age increasing, and then changes from low to high with the aging, presenting a "high-low-high" U-shaped curve, which is possible related to the growth and recession of nervous system.
Acupuncture Points ; Acupuncture Therapy ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Face ; physiopathology ; Female ; Hand ; physiopathology ; Humans ; Infant ; Male ; Middle Aged ; Mouth ; physiopathology ; Reflex ; Young Adult
8.Effects of micronization on micromeritics properties of baicalin.
Hong-Mei YAN ; Dong-Mei DING ; E SUN ; Jing WANG ; Xiao-Bin JIA ; Zhen-Hai ZHANG
China Journal of Chinese Materia Medica 2014;39(4):653-656
Baicalin extremely fine powder was made by using ball-mill and the effect of micronization on the micromeritics properties of baicalin was studied and analyzed. The microstructures of baicalin ordinary and extremely fine powder were compared by scanning electron microscope, differential scanning calorimeter and X-ray diffraction and the powder characteristic of them was investigated. The hygroscopicity was studied. The effect of micronization on the dissolution of baicalin was investigated. The results showed that the chemical constituents of baicalin were not changed after micronization with better compressibility. It was confirmed that micronization technology had a certain application value in promoting the insoluble component of baicalin absorption with higher dissolution.
Calorimetry, Differential Scanning
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Drugs, Chinese Herbal
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chemistry
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Flavonoids
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chemistry
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Particle Size
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Solubility
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Wettability
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X-Ray Diffraction
9.Benign metastasizing leiomyma of lung: report of a case.
Li-juan WANG ; Zhen-zhu SUN ; Dong-ming LENG ; Chun WANG ; Xiao-feng YANG
Chinese Journal of Pathology 2008;37(2):143-144
Adult
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Female
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Humans
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Leiomyoma
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complications
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Lung Neoplasms
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complications
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Uterine Neoplasms
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complications
10.Study on sustained release preparations of Epimedium component.
Hong-mei YAN ; Dong-mei DING ; Zhen-hai ZHANG ; E SUN ; Jie SONG ; Xiao-bin JIA
China Journal of Chinese Materia Medica 2015;40(8):1484-1488
The formulation for sustained release tablet of Epinedium component was selected and the evaluation equation of in vitro release was established. The liquidity of component was improved with the help of colloidal silica aided by spray drying, which would be the main drug in the sustained release tablets. Dissolution was selected as an evaluation index to investigate skeletal material type, fillers, impact porogen, lubricants and other materials on the quality of sustained release tablet. The sustained release tablets were prepared by dry compression. Formulation of sustained release preparations was main drug 35%, HPMC K(4M) 20% and HPMC K(15M) 10% as skeleton material, MCC 31% as filler, PEG6000 2% as porogen and magnesium stearate 2% as lubricant. The sustained release tablets released up to 80% in 8 h. The zero order equation, primary equation and Higuchi equation could simulate the release characteristics of sustained release tablets in vitro, the correlation coefficients r were larger than 0.96. The primary equation was most similar in vitro release characteristics and its correlation coefficient r was 0.9950. The preparation method is simple and the results of formulation selection are reliable. It can be used to guide the production of Epimedium component sustained release preparations.
Chemistry, Pharmaceutical
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methods
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Delayed-Action Preparations
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chemistry
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Drugs, Chinese Herbal
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chemistry
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Epimedium
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chemistry
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Kinetics
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Tablets
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chemistry