2.Isolation,Identification and Characterization of a Methanotrophic Strain
Microbiology 1992;0(06):-
Strain QJ16,one of some methanotrophic bacteria isolated from soil samples utilizing the separate device designed by our laboratory;was studied in detail and identified as one of the Genus methylomonas through 16S rDNA sequencing and comparison. The culturing and reaction conditions for methane utilization of this strain were investigated. The results indicated that the optimal conditions for the growth of strain QJ16 were methane gas as carbon source and the coexistence of NH4Cl and KNO3 as nitrogen source,the cultivation temperature of 30℃ and medium initial pH 6~7,and the optimal Cu2+ concentration of 15 ?mol/L.
3.Observation of improved extra panretinal photocoagulation for high risk proliferative diabetic retinopathy
International Eye Science 2016;16(7):1322-1324
AIM: To observe the therapeutic effect and safety of improved extra panretinal photocoagulation ( E - PRP) in the treatment of high risk proliferative diabetic retinopathy (hsPDR).
METHODS: A total of 88 consecutive cases (102 eyes) with hsPDR were diagnosed by fundus fluorescein angiography(FFA) from February 2011 to December 2014 in our hospital . Fifty two eyes had been treated by improved E - PRP with 532nm frequency - doubled laser. Fifty eyes had been treated by standard PRP. All cases were checked by FFA and fundus photocoagulation every 3mo. Patients with persisting neovascularization or non perfusion area were treated with laser again. All cases were followed up 6-36mo.
RESULTS: The postoperative visual acuity had no statistical difference between two groups ( P > 0. 05). In improved E - PRP group, retinal non perfusion area and neovascularization disappeared in 35 eyes ( 67%). Effective rate was 88%. Six eyes (12%) underwent pars plana vitrectomy because of vitreous hemorrhage, fiberosis and stretched retinal detachment. In standard PRP group, retinal nonperfusion area and neovascularization disappeared in 23 eyes ( 46%). Effective rate was 66%. Seventeen eyes(34%) underwent pars plana vitrectomy because of anterior retina bleeding or vitreous hemorrhage. The rate of neovascularization disappeared and effective rate had statistical difference between two groups (P<0. 05).
CONCLUSION: It is a safe and effective methods to treat hsPDR by improved E-PRP and it was more effective than traditional PRP.
5.Methodology of DNA staining by Azure A.
Jian-yun ZHOU ; Song HE ; Lan YU ; Yan GUO
Chinese Journal of Pathology 2006;35(9):568-569
Azure Stains
;
chemistry
;
DNA, Neoplasm
;
analysis
;
chemistry
;
Humans
;
Rosaniline Dyes
;
chemistry
;
Staining and Labeling
;
economics
;
methods
;
Stomach Neoplasms
;
genetics
;
pathology
7.Expression of cytokines Th1 and Th2 in patients with esophageal squamous cell carcinoma.
Peng-Cheng CHEN ; Jian-Guo FENG ; Yu-Tian LING
Chinese Journal of Oncology 2007;29(11):850-851
Adult
;
Aged
;
Aged, 80 and over
;
Carcinoma, Squamous Cell
;
immunology
;
pathology
;
Cytokines
;
blood
;
Esophageal Neoplasms
;
immunology
;
pathology
;
Female
;
Humans
;
Interferon-gamma
;
blood
;
Interleukin-10
;
blood
;
Interleukin-12
;
blood
;
Interleukin-4
;
blood
;
Interleukin-5
;
blood
;
Lymphatic Metastasis
;
Male
;
Middle Aged
;
Th1 Cells
;
immunology
;
Th2 Cells
;
immunology
;
Tumor Necrosis Factor-alpha
;
blood
8.Immune mechanisms of the active ingredients of Chinese medicinal herbs for chronic prostatitis.
Hao WANG ; Yu-chun ZHOU ; Jian-guo XUE
National Journal of Andrology 2016;22(1):63-66
Chronic prostatitis is a common male disease, and its pathogenesis is not yet clear. Most scholars believe that oxidative stress and immune imbalance are the keys to the occurrence and progression of chronic prostatitis. Currently immunotherapy of chronic prostatitis remains in the exploratory stage. This article relates the active ingredients of 5 Chinese medicinal herbs (total glucosides of paeony, tripterigium wilfordii polglycosidium, curcumin, geniposide, and quercetin) for the treatment of chronic prostatitis and their possible action mechanisms as follows: 1) inhibiting the immune response and activation and proliferation of T-cells, and adjusting the proportion of Th1/Th2 cells; 2) upregulating the expression of Treg and enhancing the patient's tolerability; 3) suppressing the activation of the NF-kB factor, reducing the release of iNOS, and further decreasing the release of NO, IL-2 and other inflammatory cytokines, which contribute to the suppression of the immune response; 4) inhibiting the production of such chemokines as MCP-1 and MIP-1α in order to reduce their induction of inflammatory response. Studies on the immune mechanisms of Chinese medicinal herbs in the treatment of chronic prostatitis are clinically valuable for the development of new drugs for this disease.
Chemokines
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immunology
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Cytokines
;
immunology
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Drugs, Chinese Herbal
;
pharmacology
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Humans
;
Immune System
;
drug effects
;
Male
;
NF-kappa B p50 Subunit
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metabolism
;
Nitric Oxide Synthase Type II
;
metabolism
;
Plants, Medicinal
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Prostatitis
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drug therapy
;
immunology
;
T-Lymphocytes, Regulatory
;
drug effects
;
Th1-Th2 Balance
10.Relation between expression of BCSCs associated genes from swelling axillary lymph nodes of breast cancer with recurrence and metastasis of tumor
Tianwu YU ; Jianping GONG ; Dan GUO ; Jian ZHOU
Chongqing Medicine 2016;45(9):1223-1227
Objective To explore the relation between the expression of breast cancer stem cells(BCSCs) related gene CD44 , OCT4 and Twist1 in breast cancer tissues and swelling axillary lymph nodes with the recurrence and metastasis of breast cancer . Methods The genes and antigen expressions of BCSCs relative factors CD44 ,CD24 ,OCT4 and Twist1 in th breast cancer tissue and axillary lymph nodes were detected by the immunohistochemical method and RT‐PCR .Results Totally 14 cases of preopera‐tively and intraoperatively diagnosed breast cancer had axillary lymph nodes metastasis of cancer cells .The over expression of BC‐SCs relative factors CD44 ,OCT4 and Twist1 antigen positive in the breast cancer tissue and axillary lymph nodes were detected by the immunohistochemical method ,while CD24 was lowly expressed;the gene expressions of BCSCs relative factors CD44 ,OCT4 and Twist1 in the breast cancer tissue and axillary lymph nodes were enhanced by the RT‐PCR detection (P<0 .05) ,while CD24 gene was lowly expressed(P>0 .05) .Conclusion The genes and antigen expression of BCSCs related factors CD44 ,OCT4 and Twist1 in the patients with breast cancer complicating swelling axillary lymph nodes are significantly increased ,which might indicate that the BCSCs related factors are related with easily early metastasis and recurrence of breast cancer cells .