1.EXAMINE ON THE SEPTICAEMIA INFECTION AND ITS PATHOGENIC BACTERIA IN SOFT- SHELLED TURTLE
Xiaojun ZHANG ; Cuizhen CHEN ; Hai FANG
Chinese Journal of Zoonoses 2000;(2):70-71,8
A lot of single species of bacteria was seperated from the pathological changes position of the liver in sick (or dead) soft-shelled turtle which was infected by septicae-uia. By identifying and the characteristic of physics and chemistry the six single culture strains of bacteria, preliminary showed that it was A. caviae in Aeromonas. Through examination ablut causing illness, it was proved that the A. caviae seperated and appraised was pathogenic bacteria of this infection septcaemia of soft-shelled turtle.
3.INSOLUBLE DYE XYLAN OF SUGAR CANE BAGASSE AND ITS APPLICATION FOR MEASUREMENT OF XYLANASE ACTIVITY
Chenxing HE ; Hourui ZHANG ; Jianzhi ZHENG ; Hong FANG ; Hai CHEN ;
Microbiology 1992;0(01):-
Xylan from sugar cane bagasse can be cross linked by 1,4 butanedioldiglycidylether with dye Cibacron blue 3GA to form an insoluble dye solid This substrate was stable from pH4 to pH8 at 50℃ for 24h or 100℃ for 30min It is easy and sensitive to use this dyed xylan from sugar cane bagasse in measuring xylanase activity and screening xylanase producing microorganisms on agar plate
4.Identification of Acinetobacter junii Morphovari from Diseased Stone Flounder (Kareius bicoloratus L.)
Cui-Zhen CHEN ; Hai FANG ; Xiao-Jun ZHANG ;
Microbiology 1992;0(03):-
Successive pathogenic bacteria were examined from liver,spleen, kidney and contents of intestine of diseased stone flounder (Kareius bicoloratus L.) occurring bacterial septicaemia infection caused by Aeromonas salmonicida. Identification of extensive phenotypic information to 6 pure cultures and detection of the mol% G+C ratio of the DNA to representative strains,showed that the examined bacteria belonged to a new morphovar of Acinetobacter junii, and was designated as Acinetobacter junii morphovar I. In addition, serotype, antibiotic sensitivity and pathogenicity of isolates were studied, the results showed that the 6 strains have the same K-antigen and O-antigen, there are no obvious differences in sensitivity and resistance to used 37 antimicrobial agents between strains, and have strong pathogenicity to experimental stone flounder and Bastard halibut.
5.Molecular cloning and sequence analysis of(S)-N-methylcoclaurine-3'-hydroxylase gene in Coptis chinensis
Jiayu ZHOU ; Shuming PENG ; Ningfei LEI ; Hai LIAO ; Fang CHEN
Chinese Traditional and Herbal Drugs 1994;0(03):-
Objective To clone and sequence the cDNA encoding(S)-N-methylcoclaurine-3'-hydroxylase from Coptis chinensis.Methods The cDNA,encoding(S)-N-methylcoclaurine-3'-hydroxylase,was amplified by RT-PCR with cDNA library of tender leaf as the template.Results The full-length cDNA of(S)-N-methylcoclaurine-3'-hydroxylase(named as CYP80B3) had 1 680 bp with an open reading frame encoding 488 amino acids of protein.The CYP80B3 had 95%,82%,70%,and 68% amino acid sequence homology to the sequence of(S)-N-methylcoclaurine-3'-hydroxylase from C.japonica,Thalictrum flavum,Eschscholzia californica and Papaver somniferum,respectively.The sequence was reported to the GenBank and coded as EF492879.Comparison of sequence with(S)-N-methylcoclaurine-3'-hydroxylase from C.japonica showed CYP80B3 possessed the same functional regions involved with 3'-hydroxylation of(S)-N-methylcoclaurine.Conclusion The cDNA encoding CYP80B3 from C.chinensis was cloned and reported.This work underlays the first step for exploring the pathway of benzylisoquinoline alkaloid biosynthesis and for improving the content of benzylisoquinoline alkaloid in C.chinensis.
6.Parotid gland carcinosarcoma: report of a case.
Hai-ping ZHANG ; Hai-fang ZHANG ; Pei-qiong CHEN
Chinese Journal of Pathology 2011;40(10):703-704
Carcinosarcoma
;
metabolism
;
pathology
;
radiotherapy
;
surgery
;
Follow-Up Studies
;
Humans
;
Keratins
;
metabolism
;
Ki-67 Antigen
;
metabolism
;
Male
;
Middle Aged
;
Mucin-1
;
metabolism
;
Parotid Gland
;
pathology
;
surgery
;
Parotid Neoplasms
;
metabolism
;
pathology
;
radiotherapy
;
surgery
;
Radiotherapy, Adjuvant
;
Vimentin
;
metabolism
7.Measurement of the retinal fovea and nerve fiber layer thickness in patients with unilateral myopic anisometropic amblyopia using optical coherence topography
Wu-he, CHEN ; Jie, CHEN ; Jin-ling, XU ; Fan, L(U) ; Jin-hai, HUANG ; Fang, ZHANG
Chinese Journal of Experimental Ophthalmology 2012;(12):1091-1095
Background Both functional and morphological changes in amblyopic development are known to occur at various levels in the central visual pathway.However,whether the retina is involved or not during amblyopic progression remains controversial.Objective This study was designed to compare the thicknesses of the fovea and retinal nerve fiber layer (RNFL) of the normal fellow eye of amblyopic eye using optical coherence tomography (OCT) in children with myopic anisometropia.Methods Twenty-two patients with unilateral myopic anisometropic amblyopia were included as the anisometropia amblyopia group.Ten unilateral myopic anisometropic amblyopia subjects received treatment and recovered were used as the amblyopic cure group,and 11 individuals with simple myopic anisometropia without amblyopia were enrolled as the control group.OCT was performed on both eyes of all the subjects with informed consent.Fovea retinal thickness and RNFL thickness from the superior,inferior,nasal and temporal quadrants in the peripapillary region were evaluated.The measurement parameters were bilaterally compared in all the individuals by paired t test.The multiple regression model was used to analyze the correlation of retinal thickness with amblyopia patients.This study was approved by the Ethic Committee of this hospital.Written informed consent was obtain from each subject prior to the eye examination.Results Fovea retinal thickness increased in the amblyopic eyes compared with the fellow eyes,showing a statistically significant difference between them (P =0.001).However,no significant differences were found in the fovea retinal thickness between both eyes in the amblyopic cure group and simple myopic anisometropia without amblyopia group (P =0.778,0.943).Among the anisometropia amblyopia group,amblyopia cure group and simple myopic anisometropia without amblyopia group,the RNFL thicknesses of the temporal quadrant was significantly thicker in the higher myopic lateral eyes than those of the fellow eyes (P<0.001,P =0.003,P =0.046).However,the differences in the superior,inferior,nasal and the average RNFL thickness were not statistically significant between the two eyes (P>0.05).A negative correlation was found between the inferior retinal thickness with age (r=-0.559,P=0.016).Conclusions The fovea may be affected in unilateral myopic anisometropic amblyopia.There is no significant difference in the RNFL thickness between simple myopic eye and unilateral myopic anisometropia amblyopic eye.Improvement in amblyopia is coming along with the reduction of the thickness of the fovea.
8.Transgenic Tobacco Expressing the Crocus CSzCD Gene Showed the Production of Crocetin
Hai-Bo XIAO ; Lan WANG ; Chen YAN ; Ying XU ; Fang CHEN ; Lin TANG ;
China Biotechnology 2006;0(06):-
To investigate the feasibility to produce crocetin in tobacco plants.The coding region of zeaxanthin cleavage dioxygenase (CSzCD) gene from Crocus sativus L. was inserted into the downstream of the cauliflower mosaic virus (CaMV) 35S promoter of a binary vector pBI121, and integrated into the genome of Nicotiana tabacum L. Twenty-one transgenic lines were identified by genomic southern blotting analysis. Western blotting and HPLC analysis of the leaf extracts of transgenic tobacco showed that crocetin was produced in CSzCD gene-transformed plants, while no crocetin was found in the untransformed tobacco.
9.Identification and Function of Acid-sensing Ion Channels in RAW 264.7 Macrophage Cells
Lan NI ; Peng FANG ; Zhuang-Li HU ; Hai-Yun ZHOU ; Jian-Guo CHEN ; Fang WANG ; You JIN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2018;38(3):436-442
Activation of acid-sensing ion channels (ASICs) plays an important role in neuroinflammation.Macrophage recruitment to the sites of inflammation is an essential step in host defense.ASIC 1 and ASIC3 have been reported to mediate the endocytosis and maturation of bone marrow derived macrophages.However,the expression and inflammation-related functions of ASICs in RAW 264.7 cells,another common macrophage,are still elusive.In the present study,we first demonstrated the presence of ASIC 1,ASIC2a and ASIC3 in RAW 264.7 macrophage cell line by using reverse transcriptase polymerase chain reaction (RT-PCR),Western blotting and immunofluorescence experiments.The non-specific ASICs inhibitor amiloride and specific homomeric ASIC 1 a blocker PcTx 1 reduced the production of iNOS and COX-2 by LPS-induced activating RAW 264.7 cells.Furthermore,not only amiloride but also PcTx 1 inhibited the migration and LPS-induced apoptosis of RAW 264.7 cells.Taken together,our findings suggest that ASICs promote the inflammatory response and apoptosis of RAW 264.7 cells,and ASICs may serve as a potential novel target for immunological disease therapy.
10.Observation of Testis Tissue in Experimental Cryptorchidism after Orchiopexy in Various-Day-Rats
cui-ping, SONG ; hai-lei, WANG ; guo-lin, ZHANG ; fang, AI ; jin-lan, CHEN
Journal of Applied Clinical Pediatrics 2006;0(23):-
ObjectiveTo observe testis tissue changes of experimental cryptorchidism after orchiopexy in various-day-rats.MethodsSeventy-two Sprague-Dawley(SD) male rats were divided into 3 groups randomly and made artificial cryptorchidism:unilateral cryptorchidism group(n=24),bilateral cryptorchidism group(n=24)and sham operation group(n=24)at age 21-day-old.Intra-abdominal testicle was resetting in 2 weeks,at age 40 days and 60 days,the rats were sacrificed for detection tubular fertility index(TFI) and mean tubular diametar(MTD) with hematoxylin-eosine staining and germ cell apoptosis by terminal deoxynucleotidyl transferase mediated d-UTP nick end labeling(TUNEL) assay.ResultsThere were significant differences of MTD,TFI and apoptosis index(AI) between cryptorchidism and scrotal testes(P0.05).The AI of cryptorchidism testes of unilateral cryptorchidism group were significantly lower than that of bilateral cryptorchidism group in 40 days(P0.05).ConclusionsAI of artificial resetting testis is increased and contralateral descended testes in unila-teral cryptorchidism have various damage.It is to lighten that pathological damage of testes of cryptorchidism with prolongation of reset time.