2.Effects of breast milk and some infant foods on the adhesion of entero-pathogenic Escherichia coli (EPEC) to Hela cells and intestinal mucosa
Fengying WANG ; Yumei WANG ; Qing CHANG ; Lu JIANG ; Changxu SHI
Journal of Third Military Medical University 2001;23(4):478-480
Objective To investigate the effect of breast milk and some other kinds of infant foods on the adhesion of EPEC to Hela cells and intestinal mucosa so as to understand the possible protective mechanism of breast-feeding in the intestine of infants. Methods The adhesion of EPEC to Hela cells and intestinal mucosa were examined by cell culture, bacterial adherence test, light and electron microscopy in the mediums that contain breast milk, cow's milk and formula milk or contain ecal filtrate of the infants fed by breast milk and formula milk respectively. Results Adhesive index for EPEC to Hela cells was significantly lower in the medium containing breast milk than in control and so did in the fecal medium containing breast fed infants than artificial feeding infants. Conclusion Breast milk may inhibit the adhesion of EPEC to infant intestine.
3.Epidemiological survey and analysis of perimenopausal syndrome in Chongqing city
Chundong LU ; Juan SONG ; Changxu SHI ; Qing CHANG
Chongqing Medicine 2015;(28):3978-3979,3982
Objective To investigate the prevalence of perimenopausal syndrome and relative risk factors in perimenopausal and postmenopausal women in Chongqing city .Methods Totally 1 680 questionnaires from women with perimenopausal syndrome , all the objects were patients who visited gynecology clinic from January 2013 to June 2014 in Chongqing .Results The average men‐arche age was (14 .71 ± 1 .95) years old ;average menopause age was (47 .22 ± 3 .13) years old in 1 680 perimenopausal women . 93 .51% (1 571/1 680) objects were diagnosed perimenopausal syndrome ,mainly presented to be forgetfulness ,sleep disorder ,irrita‐bility ,palpitation ,headache ,hot flashes ,sweating ,loss of libido ,orgasmic dysfunction ,dyspareunia ,colpoxerosis ,bone ,joint and muscle pain ,paraesthesia of skin ,depression .The risk factors were analyzed ,forgetfulness(P < 0 .01) ,sleep disorder(P < 0 .01) , menopause(P< 0 .01) ,normal sex or not(P< 0 .05) ,the attitude of sex(P< 0 .05) ,and the attitude of menopause(P< 0 .05) .Con‐clusion Most women in the period of perimenopausal have the problem with perimenopausal syndrome .The special service should be provided to perimenopausal women ,such as knowledge about perimenopausal and rational hormone replacement therapy .
4.Changes of Hearing Threshold Shift in Guinea Figs after Inhalation of Different Doses of Toluene
Qing YE ; Shuchang LU ; Zhengyun HU ; Jiawen CHANG
Academic Journal of Second Military Medical University 1982;0(01):-
Male guinea pigs were exposed to 750ppm or l000ppm or 1 500ppm toluene (8h/d, for 14d), and their hearing thresholds were tested by means of Madsen ERA 2250 system 3d and 14d after exposure. Hearing impairment was observed in all groups. The degree of impairment was related to the exposure concentration and had a tendency to further damage in two weeks. The results indicate that toluene can cause acute hearing impairment even if its concentration is as low as 750ppm and the impairment develops from bad to worse at least in two weeks.
5.Significance of the changes of vaginal lactobacilli in bacterial vaginosis in pregnant women
Qing CHANG ; Fei XIE ; Lu JIANG ; Changxu SHI ;
Journal of Third Military Medical University 2003;0(10):-
Objective To explore the significance of the changes of vaginal lactobacilli in normal pregnant women and those with bacterial vaginosis(BV). Methods A total of 309 pregnant women, including 50 pregnant women with bacterial vaginosis, were randomly selected. Lactobacilli isolated from the vaginas of pregnant women were identified by biochemical methods. The distribution of lactobacilli in the vaginas of pregnant women was observed. The ability to produce H 2O 2 and decrease the culture environment PH among four common lactobacilli in the vaginas of pregnant women was also compared. Results The detectable rate of lactobacilli in vaginas of the normal pregnant women was obviously higher than that of women with bacterial vaginosis. The predominant lactobacilli colonizing in the vaginas of the normal pregnant women were L. crispatus and L. acidophilus , most of which could produce H 2O 2. The frequency of H 2O 2 positive isolation in the vaginas of pregnant women was significantly higher than that of BV. Conclusion The study indicates that H 2O 2 positive lactobacilli plays an important role in the protection against vaginal infections in pregnant women.
8.Study on immunocyte proliferation and DNA damage induced by lead in mice.
Shu-ying DONG ; Chang-qing YING ; Ying WEN ; Ming-jun LU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2005;23(6):457-458
Animals
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Cell Proliferation
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drug effects
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Cells, Cultured
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Comet Assay
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DNA Damage
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Dose-Response Relationship, Drug
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Lead
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toxicity
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Lymphocytes
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drug effects
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Male
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Mice
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Mice, Inbred Strains
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Spleen
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cytology
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drug effects
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Thymus Gland
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cytology
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drug effects
9.Clinical Investigation of the Treatment of Acute Stroke with Atrial Fibrillation: Gap Between Guidelines and Practice
li-xiong, LU ; ying, ZHANG ; xing-yu, ZHANG ; chang-qing, ZHU
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(09):-
Objective To evaluate the current status of treatment and prophylaxis of ischemic stroke associated with atrial fibrillation(AF),and to assess the opportunities for improvement. Methods Ninty-seven consecutive patients with acute ischemic stroke and AF were evaluated and compared with 173 acute ischemic stroke patients without AF.Medical records were reviewed using a pre-defined questionnaire developed from the guidelines.Functional outcome was measured according to modified Rankin scale. Results The patients with stroke and AF was older than the control group(years vs years,P
10.CELL CHEMICAL CHARACTERISTICS AND 16S rDNA SEQUENCE ANALYSIS OF A BLUE-PIGMENT-PRODUCING STRAIN
Heng-Lin CUI ; Ling LU ; Yi-Nan CHEN ; Qing CHANG ; Chuan-Cao DAI ;
Microbiology 1992;0(06):-
An actinomycetes which produced soluble blue pigment was isolated from the soil sample in Nanjing,China.Based on its cell chemical characteristics and 16S rDNA sequence we found that its cell wall contained L-diaminopimelic acid and glycine,the whole cell hydrolysates contained glucose and ribose,whole cell contained fatty acid from C14 to C17 with 12-methyltetradecanoic(anteiso-15) and 14-methylpentadentadecanoic acid(iso-16) as the major components.The results shown that,it belongs to the genus Streptomyces.Phylogenetic tree of 16S rDNA sequences indicated that all strains were clustered into 9 branches.All strains that could produce blue pigment were clustered into 2 branches,they were S.coelicolor、S.cyaneus.The isolate closely related to Streptomyces indigocolor with a similarity of 99.4% fell into S.cyaneus branch.