1. Aquaglyceroporin3-mediated glycerol transport and skin function
Academic Journal of Second Military Medical University 2010;30(12):1416-1419
Aquaglyceroporin3 (AQP3), a dual function water channel, can transport both water molecule and other small molecular substances such as glycerol. AQP3-mediated glycerol transport in skin is very important for skin function, whose absence can lead to dry skin, decreased elasticity, and impaired barrier function, and whose overexpression is related to higher risk of skin tumorigenesis. The multiple roles of AQP3 in skin function make it a potential target in treatment of skin disease and development of cosmetics. This paper reviews the characteristics, function, application, and research perspective of AQP3.
2.Screening and identification of endophytic fungi with growth promoting effect on Dendrobium officinale.
Xiao-qiang HOU ; Shun-xing GUO
China Journal of Chinese Materia Medica 2014;39(17):3232-3237
The endophytic fungi with plant growth promoting effects were screened by co-culture of each endophytic fungus and seedlings of Dendrobium officinale. Anatomical features of the inoculated roots were studied by paraffin sectioning. Morphological characteristics and rDNA ITS1-5. 8S-ITS2 sequences were applied for the taxonomy of endophytic fungi. The results showed that 8 strains inoculated to D. officinale seedlings greatly enhanced plant height, stem diameter, new roots number and biomass. According to the anatomical features of the inoculated roots, each fungus could infect the velamina of seedlings. The hyphae or pelotons were existed in the exodermis passage cells and cortex cells. The effective fungi could not infect the endodermis and vascular bundle sheath, but which was exception for other fungi with harmful to seedlings. Combined with classic morphologic classification, 2 effective strains were identified which were subjected to Pestalotiopsis and Eurotium. Six species of fungi without conidiophore belonged to Pyrenochaeta, Coprinellus, Pholiota, Alternaria, Helotiales, which were identified by sequencing the PCR-amplified rDNA ITS1-5. 8S-ITS2 regions. The co-culture technology of effective endophytic fungi and plant can apply to cultivate the seedlings of D. officinale. It is feasible to shorten growth cycle of D. officinale and increase the resource of Chinese herbs.
Biomass
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DNA, Fungal
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genetics
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DNA, Ribosomal
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genetics
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DNA, Ribosomal Spacer
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genetics
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Dendrobium
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cytology
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growth & development
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microbiology
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Endophytes
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classification
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genetics
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physiology
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Fungi
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classification
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genetics
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physiology
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Host-Pathogen Interactions
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Hyphae
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physiology
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Plant Roots
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cytology
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growth & development
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microbiology
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Plants, Medicinal
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growth & development
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microbiology
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RNA, Ribosomal, 5.8S
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genetics
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Seedlings
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cytology
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growth & development
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microbiology
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Species Specificity
4.Expert's comment.
Guo-Qiang CHENG ; Xiao-Mei SHAO
Chinese Journal of Pediatrics 2009;47(7):522-522
7.Different scoring systems to evaluate the prognosis of Fournier's gangrene: A comparative study.
Xiao-dong ZHU ; Fei DING ; Guo-dong WANG ; Qiang SHAO
National Journal of Andrology 2015;21(8):720-723
OBJECTIVETo sum up the experience in diagnosis and treatment of Fournier's gangrene and find an optimal evaluation tool for its prognosis by comparing currently used prognostic scoring systems.
METHODSWe retrospectively analyzed 16 cases of Fournier's gangrene diagnosed and surgically treated in our hospital between 2004 and 2012. Using Fournier's Gangrene Severity Index (FGSI), Uludag Fournier's Gangrene Severity Index (UFGSI), Age-Adjusted Charlson Comorbidity Index (ACCI), and Surgical Apgar Score (sAPGAR) , we obtained the prognostic scores of the patients and made comparisons among different scoring systems.
RESULTSFGSI, UFGSI, ACCI, and sAPGAR were all clinically used scoring systems. Statistically significant differences were found in the scores of ACCI and UFGSI but not in those of FGSI and sAPGAR between the death and survival groups, with the maximum area under the ROC curve and minimum standard error for the ACCI score.
CONCLUSIONBoth ACCI and UFGSI are useful for evaluating the prognosis of Fournier's gangrene. However, ACCI is even better for its higher sensitivity and specificity and easier clinical collection.
Age Factors ; Aged ; Fournier Gangrene ; diagnosis ; mortality ; surgery ; Humans ; Prognosis ; Retrospective Studies ; Sensitivity and Specificity ; Severity of Illness Index
10.Effects of nano porous beta-tricalcium phosphate/collagen scaffold modified with human bone morphogenetic protein 2 gene on differentiation of MC3T3-E1 cell lines
Qiang RUAN ; Gang ZHAO ; Rui GUO ; Yue XIAO ; Chao LI
Chinese Journal of Tissue Engineering Research 2016;20(38):5657-5663
BACKGROUND:Bone tissue transplantation or osteogenic material fil ing is after used for bone defect repair. To remove autologous bone tissues can lead to additional damage and secondary deformity, therefore, it is extremely urgent to search for a new osteogenic material. OBJECTIVE:To construct the porousβ-tricalcium phosphate (β-TCP)/col agen scaffold modified with human bone morphogenetic protein 2 (hBMP2) gene, and to observe its effects on differentiation of MC3T3-E1 cel lines. METHODS:The porousβ-TCP/col agen scaffold modified with hBMP2 gene was prepared. Then in vitro culture system of MC3T3-E1 cel lines with composite scaffold was established. There were scaffold and plate groups, and each group was divided into two subgroups according to the different concentrations of plasmid. Samples were col ected and observed morphological y by scanning electron microscope and light microscope after complex culture. After 1, 3, 7 and 14 days of induction, calcium nodules were observed through alizarin red staining, the cel cycle was detected by real-time PCR, and expressions ofαI-chain col agen type I gene, Osterix and bone sialoprotein were observed. RESULTS AND CONCLUSION:The number of cel s adhered, differentated and distributed on the composite scaffold was significantly higher than that of the single scaffold (P<0.05). Alizarin red staining and real-time PCR detection showed that the osteogenesis ability of MC3T3-E1 cel lines in the scaffold group was stronger than that in the plate group. To conclude, the porousβ-TCP/col agen scaffold modified with hBMP2 gene is an appropriate candidate for bone defect repair.