2.VIABILITY,VIRULENCE AND STORAGE OF VACUUM-DRIED BEAUVERIA BASSIANA CONIDIA POWDER
Sheng-Hua YING ; Ming-Guang FENG ;
Microbiology 1992;0(05):-
The fresh conidia powder of Beauveria bassiana SGBB8702 produced with diphasic technology was dried using 36-h procedures of vacuum-freeze drying (VFD) or vacuum drying (VD). The VFD and VD procedures reduced water content of the fresh conidia powder from 58.56% to 3.97% and 4.26%, resulting in preparations containing 1.29, and 1.25?10 11 conidia/g. The VFD or VD conidia had the same viability (≥98%) as the fresh ones but germinated slightly more slowly than the fresh ones. The estimates of LC 50 s for the fresh, VFD, and VD conidia against Myzus persicae on day 7 after inoculation were 1.15, 5.89, and 2.95?10 4 conidia/ml, respectively. At the concentration of 10 6 conidia/ml, the LT 50 of the fresh conidia against M. persicae was estimated as 3.6 d, corresponding to 3.9 d and 4.4 d for the VFD and VD conidia, respectively. Due to much lower cost, the VD procedure was of greater potential for drying B. bassiana conidia in mass production though the VFD procedures resulted in slightly better quality of conidia powder. The viability and virulence of the VFD conidia were assessed periodically during 12-mon storage at 4℃ and 20℃, respectively. No viable conidia stored at 20℃ were detected 255 d after storage whereas those stored at 4℃ had a viability of 90.15% and an LT 50 of 4.7 d at the end of 12-mon storage. The results showed that storage of B. bassiana conidia powder at ambient temperature was unable to maintain shelf life at commercially acceptable level even though its water content was reduced to
3.Effect of Actinidia chinensis planch polysaccharide on the growth and apoptosis, and p-p38 expression in human gastric cancer SGC-7901 cells.
Wen-Ying SONG ; Guan-Hua XU ; Guang-Ji ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(3):329-333
OBJECTIVETo investigate the effect of Actinidia chinensis Planch polysaccharide (ACPS) on the growth and apoptosis of human gastric cancer SGC-7901 cells, and to explore the effect of SGC-7901 cells on p-p38 expression.
METHODSThe inhibition rates at different concentrations of ACPS on SGC-7901 cells at 24, 48, and 72 h were detected using CCK-8 method. Apoptosis ratios in SGC-7901 were determined by flow cytometry after 48-h treatment of different concentrations of ACPS. The expression of pro-caspase-9, PARP, and p-p38 in SGC-7901 cells after treated by different concentrations of ACPS was detected using Western blot. The expression of pro-caspase-9, PARP, and p-p38 was detected after SGC-7901 cells were pre-treated by p38 specific inhibitor.
RESULTSCompared with the control group, the optical density of SGC-7901 cells decreased after treated by 1, 2.5, 5, and 10 mg/mL ACPS (P < 0.05). Meanwhile, the longer the acting time, the lower the optic density (P < 0.01). IC50 was 7.43 mg/mL at 24 h; 3.88 mg/mL at 48 h, and 1.32 mg/mL at 72 h respectively. ACPS suppressed the protein expression of pro-caspase-9 (P < 0.01) and up-regulated the expression of PARP (89KD) (both P < 0.01). Further study showed that the protein expression of p-p38 was up-regulated in SGC-7901 cells treated by ACPS of different concentrations at 24 h (P < 0.05). The expression of phosphorylation p38 and the ACPS induced apoptosis of SGC-7901 cells could be inhibited after treated by specific inhibitor for 2 h.
CONCLUSIONSACPS could inhibit the growth of SGC-7901 cells and induce apoptosis. The underlying mechanism of inducing apoptosis was partially due to activating the p38MAPK path and further activating Caspase9 and PARP, finally leading to cell death.
Actinidia ; chemistry ; Apoptosis ; drug effects ; Caspase 9 ; metabolism ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Humans ; Poly (ADP-Ribose) Polymerase-1 ; Poly(ADP-ribose) Polymerases ; metabolism ; Polysaccharides ; pharmacology ; Stomach Neoplasms ; metabolism ; pathology ; p38 Mitogen-Activated Protein Kinases ; metabolism
5.The application of GlideScope videolaryngoscope in head neck tumor operations with difficult tracheal intubation.
Xiu-ying ZHANG ; Guang-hua ZHANG ; Lu-bo GAO
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2006;41(12):950-951
Adult
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Aged
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Aged, 80 and over
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Female
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Head and Neck Neoplasms
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surgery
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Humans
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Intubation, Intratracheal
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methods
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Laryngoscopes
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Male
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Middle Aged
6.Chinmedomics: a new strategy for research of traditional Chinese medicine.
Ai-hua ZHANG ; Hui SUN ; Guang-li YAN ; Ping WANG ; Ying HAN ; Xi-jun WANG
China Journal of Chinese Materia Medica 2015;40(4):569-576
Syndrome and formulae (or prescription) are two key issues in traditional Chinese medicine (TCM) and the premise research for material basis of TCM. However, vagueness of syndromes and complexity of formulae greatly limited the evaluation to syndromes and effective substance basis of prescription. Therefore, how to solve the evaluation of syndromes, confirming the efficacy material basis in prescription are the current hot issues of international concern. To solve these problems, establishing chinmedomics by integrated serum pharmacochemistry of TCM with metabolomics technology, that is a unique method of TCM research, made outstanding contributions in solving international concerns such as the effectiveness and security aspects of TCM. On the basis of the biological characterization of syndrome, the metabolic profiling of animal models of TCM syndrome, and related metabolic fingerprints as well as metabolic biomarkers were established to evaluate the overall effects of TCM formulae and corresponding relationship of syndrome-formulae. The active constituents were screened using the plotting of correlation between (endogenous) marker metabolites and (exogenous) serum constituents (PCMS), and is ongoing verification by further biological experiments. Correlation analysis between the ingredients in the body after oral formulae and endogenous markers in vivo can be used to clarify the active ingredients and synergistic properties. This method was successfully applied for rapid discovery of potentially bioactive components and metabolites from TCM, and through a series of studies on the chinmedomics, it proved that the established method could help to explore the effective substance for further research of TCM. As a new research approach, Chinmedomics is the best method to fit the holistic concept of TCM, and it can not only interpret the essence of syndrome but also elucidate the scientific connotation of Chinese medical formulae.
Animals
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Diagnosis, Differential
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Drug Prescriptions
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Drug Therapy
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Drugs, Chinese Herbal
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analysis
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pharmacokinetics
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Humans
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Medicine, Chinese Traditional
7.Analysis of the data for inpatients with acute organophosphorous pesticide poisoning in Wucheng.
Yun-he HUO ; Xiu-hua WANG ; Xiao-ying SHANG ; Shuang-lian LIU ; Guang-shu CUI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(1):32-32
Acute Disease
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Adolescent
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Adult
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Aged
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Child
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Child, Preschool
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China
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Humans
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Infant
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Inpatients
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Insecticides
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poisoning
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Middle Aged
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Organophosphorus Compounds
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Pesticides
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poisoning
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Poisoning
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etiology
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mortality
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therapy
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Risk Factors
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Survival Rate
8.Significance of Computed Tomography in Diagnosis of Bronchial Foreign Body in Children
yan, SUN ; shao-hua, WANG ; rong-jun, LIN ; guang-feng, JIANG ; ying, TIAN ; zhi-jun, CHEN
Journal of Applied Clinical Pediatrics 2006;0(16):-
Objective To investigate clinical significance of computed tomography (CT) scan in diagnosis of bronchial foreign body in children.Methods Twenty-one suspected children with bronchial foreign body were studied with spiral CT cross-section scan and coronal reconstruction and diagnosis was confirmed with bronchoscopy.Results The foreign body was displayed in all of 21 cases. CT scan showed foreign body was located in right main bronchial 12 cases, right middle bronchial 1 case, right inferior lobar bronchial 2 cases and left main bronchial 6 cases. Foreign bodies were extracted with bronchoscopy.Conclusion CT scan can display and locate accurately foreign body in bronchial of children,and has very important diagnostic value in patients having atypical histories, clinical and radiological findings.
9.Clinical and Pathological Analysis of 48 Children with Focal Segmental Glomerulosclerosis
ying, WU ; guang-hua, ZHU ; ming-jun, FANG ; wei-xun, HE
Journal of Applied Clinical Pediatrics 1992;0(05):-
Objective To investigate the relationship between the clinical character and pathological variants as well as response to treatment of focal segmental glomerulosclerosis(FSGS) in children.Methods The clinical feature, laboratory data and histological variants of 48 children with idiopathic FSGS proven by renal biopsy were studied retrospectively. Among them,34 were boys;14 cases were girls. The age ranged from 1.75 to 16.0 years.Results Of 48 children with FSGS,nephrotic syndrome in 32(66.7%)was the predominant clinical manifestation. The pathological classification included FSGS not otherwise specified(NOS) in 29 cases(60.42%), perihilar variant in 14 cases(29.17%), tip variant 3 cases(6.25%), cellualr variant 2 cases(4.17%)and no collapsing variant. The different pathological variants had similar rate of segmental sclerosis glomeruli; perihilar variant had a higher global sclerosis glomeruli than FSGS NOS and other variants and there was a statistical significance(P 0.05).Vascular lesions were rarely seen in all kinds of histological variants of children.Conclusions Hypertension and renal insufficiency are less frequently seen in children FSGS, isolated hematuria as unique clinic presentation is common in FSGS. All pathological variants have tubular-interstitial lesions, but vascular lesions are rarely seen. Most FSGS children with nephrotic syndrome are sensitive to steroid at initial stage, and easy to develop frequent relapse gradually, immunosuppressive agent may be helpful to elevate remission rate.
10.Purification of Spirulina sp.
Xu-Hua GAN ; Xin-Yun TANG ; Guang-Jin LIU ; Cheng-Ying SHI ; Ben-Fan WANG ;
Microbiology 1992;0(02):-
Growth patterns of trichome and contaminative bacteria in Spirulina sp. liquid culture were observed, and it was found that the number of neutral and alkalophilic bacteria was always 105~106 times of that of Spirulina sp. trichome. It would be very difficult to get real pure Spirulina sp. strain by classical methods of dilution plate, capillary and single trichome selecting methods. A great deal of contaminative bacteria was washed out by two pretreatment processes. Low speed centrifugation was designed to wash the strains which usually deposit at bottom, and filtration method was designed to treat the strains usually floating at surface. Sandwich plate and dilution plate were designed for the purification of the mobile strains and non-mobile strains, respectively. A lot of strains were purified by the above processes and pure single trichome formed pure colonies on plates.