1.Expression and clinical significance of ribosomal protein L6 in prostate cancer
Meng ZHANG ; Bin SHENG ; Pengde MA ; Changwen ZHANG ; Yong XU
Tianjin Medical Journal 2016;44(1):75-78
Objective To explore the expression of ribosomal protein L6 (RPL6) in prostate cancer and its clinical sig-nificance. Methods RT-qPCR and Western blot assay were used to measure the mRNA transcription and protein expres-sion levels of RPL6 in prostate cancer tissues (n=80) and adjacent non-cancerous tissues (n=62). The relationship between RPL6 mRNA expression level and clinicopathological factors of prostate cancer was statistically analyzed. Results The mRNA and protein expression levels of RPL6 were significantly higher in prostate cancer tissues compared with those of non-cancerous tissues (P<0.05). There were higher serum expression levels of prostate specific antigen (PSA) and higher Gleason score in prostate cancer tissues. The expression level of RPL6 mRNA was significantly higher in patients with lymph node metastasis and late clinical stage (P<0.05). There were no significant differences in PSA levels between different ages, with or without seminal vesicle invasion and different surgical margin status (P>0.05). Kaplan-Meier survival analysis of biochemical recurrence (BCR)-free survival time showed the significantly lower recurrent rate in patients with high RPL 6 mRNA expression(χ2=4.530,P=0.033). Conclusion The elevated expression of RPL6 may play a role in the development of prostate cancer, and which can be used as a tumor marker to assess the prognosis of prostate cancer.
2.Physiological and biochemical change of Paris seed in after-ripening during variable temperature stratification.
Zhao-ling LI ; Kai TONG ; Shen YAN ; Hua YANG ; Qiao WANG ; Yong-bin TANG ; Meng-sheng DENG ; Meng-liang TIAN
China Journal of Chinese Materia Medica 2015;40(4):629-633
In order to explore the dormancy physiological and biochemical mechanism of Paris seeds, the seed embryo growth courses, and the dynamic change of 5 enzymes, include SOD, POD, CAT, MDH, G-6-PDH were measured during variable temperature stratification. The results indicated that Paris seeds embryo grew quickly after 40 d in warm-stratification (18 ± 1) °C, at the meantime the metabolic activity was significantly strengthened. These facts showed that Paris seeds turned into physiological after-ripening process. After 60-80 d, the morphological embryo after-ripping process basically completed, and the following cold-stratification (4 ± 1) °C furthered Paris seed to finish physiological after-ripening. After 40 d, the activity of MDH decreased while G-6-PDH increased significantly. This showed that the main respiratory pathway of seed changed from TCA to PPP, which benifited breaking seed dormancy. In the whole period of stratification process, the activity variation of SOD and CAT was insignificantly and the activity of POD was enhanced significantly after shifting the seed in cold stratification process. This showed that SOD, CAT had no direct effects on breaking Paris seed dormancy but keeping the seed vigor, while the POD might involve in the process of Paris seed dormancy breaking.
Germination
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Liliaceae
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chemistry
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embryology
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enzymology
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Plant Proteins
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metabolism
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Seeds
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chemistry
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enzymology
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growth & development
;
Temperature
3.Clinical study on continuous plasma filtration absorption treatment for burn sepsis.
Aihua MENG ; Yong REN ; Lang YANG ; Lixin HE ; Sheng ZENG ; Qiang LIU
Chinese Journal of Burns 2014;30(4):310-314
OBJECTIVETo observe the therapeutic effects of continuous plasma filtration absorption (CPFA) treatment on burn sepsis.
METHODSThirty burn patients with sepsis hospitalized in Beijing Fengtai You'anmen Hospital from July 2009 to October 2012 were treated by CPFA for twice besides routine treatment. The blood samples were collected at five sites (A, B, C, D, and E, respectively) of blood purification equipment before and after CPFA, before and after hemoabsorption, and before hemofiltration. The plasma levels of TNF-α, IL-1β, IL-6, IL-10, interleukin-1 receptor antagonist (IL-1RA), soluble tumor necrosis factor receptor (sTNFR) I , and sTNFR-II from sites A, C, and E were determined with ELISA before CPFA was performed for the first time, and those from sites B and D were determined with ELISA after CPFA was performed for the first time. Plasma levels of the above-mentioned cytokines from sites A and B were determined with ELISA before CPFA and after CPFA was performed for the second time. The data of plasma levels of IL-1βP3, IL-1RA, sTNFR-I, sTNFR-II, and TNF-α before CPFA and after CPFA was performed for the second time were collected for calculation of the ratios of IL-1RA to IL-1β and sTNFR-I plus sTNFR-II to TNF-α. The expression rate of human leukocyte antigen DR (HLA-DR) on the CD14 positive monocytes, acute physiology and chronic health evaluation (APACHE) II score, body temperature, pulse, respiratory rate, and leukocyte count of patients were evaluated or recorded before CPFA and after CPFA was performed for the second time. Patients'condition was observed. Data were processed with paired t test.
RESULTSThe plasma levels of TNF-α, IL-1β, IL-6 and IL-10 from site B after CPFA was performed for the second time were significantly lower than those from site A before CPFA was performed for the first time (with t values respectively 7.05, 5.23, 4.73, 2.37, P values below 0.01). After CPFA was performed for the first time, the plasma levels of TNF-α, IL-1β, and IL-6 from site D were significantly lower than those from site C before CPFA was performed for the first time (with t values respectively 5.48, 2. 17, 1.78, P < 0.05 or P <0.01). The plasma levels of all cytokines were close between site B after CPFA was performed for the first time and site E before CPFA was performed for the first time (with t values from 0.04 to 1.05, P values above 0.05). The plasma levels of TNF-α, IL-1β, and IL-6 from site B after CPFA was performed for the second time were significantly lower than those from site A before CPFA was performed for the second time (with t values from 1.87 to 5.93, P <0.05 or P <0.01). The ratios of IL-1RA to IL-1β and sTNFR-I plus sTNFR-II to TNF-α, and expression rate of HLA-DR were increased significantly after CPFA was performed for the second time as compared with those before CPFA (with t values from 3.99 to 7. 80, P values below 0.01). APACHE II score after CPFA was performed for the second time was 11 ± 6, which was lower than that before CPFA (22 ± 7, t =4.63, P <0.01). After CPFA was performed for the second time, body temperature, pulse, and respiratory rate of patients were improved (with t values from 1.95 to 3.55, P values below 0.05) , and the leukocyte count was significantly decreased (t =4.36, P <0.01) as compared with those before CPFA. All patients survived and were discharged with length of stay of (27 ± 31) d, and no adverse effects occurred during CPFA treatment.
CONCLUSIONSCPFA, which combines hemoabsorption and hemofiltration, can facilitate the treatment of burn sepsis by decreasing the level of pro-inflammatory cytokines efficiently, alleviating systemic inflammatory response, and improving the immune status.
Adsorption ; Aged ; Biomarkers ; blood ; Burns ; blood ; complications ; immunology ; Cytokines ; blood ; Fluid Therapy ; Hemofiltration ; methods ; Hospitalization ; Humans ; Inflammation Mediators ; blood ; Interleukin 1 Receptor Antagonist Protein ; blood ; Interleukin-10 ; blood ; Interleukin-6 ; blood ; Sepsis ; blood ; immunology ; therapy ; Treatment Outcome ; Tumor Necrosis Factor-alpha
4.Determination of cholesteryl palmitate in Oviductus Ranae by HPLC.
Yong-sheng WANG ; Da-cheng JIANG ; Qin MENG ; En-si WANG
China Journal of Chinese Materia Medica 2005;30(13):990-991
OBJECTIVETo develop a new method for the determination of cholesteryl palmitate in Oviductus Ranae.
METHODA HPLC method was set up, using Zorbax Silica column and cyclohexane-diethyl ether (40:1) as mobile phase with a flow rate of 1.0 mL x min(-1), and the UV detection wavelength was 203 nm.
RESULTThe calibration curve was linear over the range of 0.60-8.92 microg (r = 0.9997), the average recovery of the method was 98.4%. RSD 1.8% (n = 6).
CONCLUSIONThe results showed that method was reliable and accurate.
Animals ; Cholesterol Esters ; analysis ; Chromatography, High Pressure Liquid ; methods ; Female ; Materia Medica ; analysis ; chemistry ; Oviducts ; chemistry ; Quality Control ; Rana temporaria
5.Comparison of radiography,CT and MR imaging in detection of arthropathies in patients with hemophilia
Wei YU ; Qiang LIN ; Wei SHANG ; Hai-Feng ZHU ; Wei MENG ; Yong-Sheng SHI ; Rui-Yi XU ; Yong-Qiang ZHAO ;
Chinese Journal of Radiology 2001;0(02):-
Objective To compare MR,CT,and radiography in the detection of arthropathies in patients with hemophilia.Methods Forty-one symptomic joint images in the 14 patients with hemophilia, aged from 11 to 24 years,were used in this study.Each joint had the examinations of radiography,CT and MR within one day.The severity of each joint was staged using conventional radiographic classification. Severe HA patients with stage 5 were excluded from the study.Imaging findings of soft tissue swelling, osteoporosis,epiphyseal overgrowth,joint erosion,cyst,joint space narrowing,bone marrow,joint effusion, hemorrhage,synovial hypertrophy,widened intercondylar notch as well as anterior and posterior crueiate ligaments(only for knee joint)were used for the all imaging comparison.Results The 41 symptomatic joints in 14 patients with hemophilia were classified by radiographic criteria into stage 0(n=5),stage 1(n=7),stage 2(n=6),stage 3(n=8)and stage 4(n=15).Soft tissue swelling or joint effusion was observed in 33 joints by radiographs,in 34 joints by both CT and MR.Joint erosions were demonstrated in 34 joints by MR,in 33 joints by CT and 20 joints by radiographs.Joint cysts were shown in 21 joints by MR,in 18 joints by CT and 9 joints by radiographs.Significant differences in detection of erosion and cyst were found between radiography with either CT(P0.05).MR showed improvement for detecting nlore loci of both erosion and cyst than CT and radiography,and also CT showed the improvement than radiography.Bone marrow edema 14 joints, hemon'hage in 34 joints and synovial hypertrophy in 27 joints were revealed on MR images.Conclusion MRI is superior to CT and conventional radiography in detecting the abnormal changes and should be considered as the first choice among the imaging modafities in evaluating hemophilic arthropathies.
6.Effects of curcumin on sodium currents of dorsal root ganglion neurons in type 2 diabetic neuropathic pain rats.
Bo MENG ; Lu-lu SHEN ; Xiao-ting SHI ; Yong-sheng GONG ; Xiao-fang FAN ; Jun LI ; Hong CAO
Chinese Journal of Applied Physiology 2015;31(6):541-548
Along with the development of economy and society, type 2 diabetic mellitus (T2DM) has become one of the most common diseases at the global level. As one of the complications of T2DM, diabetic neuropathic pain (DNP) stubbornly and chronically affects the health and life of human beings. In the pain field, dorsal root ganglion (DRG) is generally considered as the first stage of the sensory pathway where the hyperexcitability of injured neurons is associated with different kinds of peripheral neuropathic pains. The abnormal electrophysiology is mainly due to the changed properties of voltage-gated sodium channels (VGSCs) and the increased sodium currents (I(Na)). Curcumin is an active ingredient extracted from turmeric and has been demonstrated to ameliorate T2DM and its various complications including DNP effectively. The present study demonstrates that the I(Na) of small-sized DRG neurons are significantly increased with the abnormal electrophysiological characteristics of VGSCs in type 2 diabetic neuropathic pain rats. And these abnormalities can be ameliorated efficaciously by a period of treatment with curcumin.
Animals
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Curcumin
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pharmacology
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Diabetes Mellitus, Experimental
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complications
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Diabetes Mellitus, Type 2
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complications
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Diabetic Neuropathies
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drug therapy
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Ganglia, Spinal
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cytology
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drug effects
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metabolism
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Neuralgia
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drug therapy
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Neurons
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drug effects
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metabolism
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Rats
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Sodium
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Voltage-Gated Sodium Channels
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physiology
7.Neuronal degeneration of the auditory nervous center in the mouse model of cochlear ablation
Meng ZHANG ; Xiao-Wei CHEN ; Yong-Sheng TIAN
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2009;44(7):571-576
Objective To study the long-term effect of cochlear ablation on cochlear nucleus (CN). Methods A total of 40 BABL/c adult mice were used in the present study. Mice were divided into experimental group and central group at random- In experimental group, the cochlea was destroyed with stainless steel needle under the anatomy microscopy. Mice were tested for ABR thresholds at second day and 4 months after operation to assess hearing sensitivity. Animals were allowed to survive for four months. Histological sections of the cochlear nucleus were evaluated with serial sections stained with Nissl staining and sliver staining alternatively. Morphological change in anteroventral cochlear nucleus (AVCN), posteroventral cochlear nucleus (PVCN), dorsal cochlear nucleus (DCN) and octopus cell area (OCA) was observed evaluated four month later after the cochlear ablation. Results In the experimental group, after operation, early components of ABR couldn't be recognized. The volume of CN was decreased dramatically and the cells were less comparing to the control group. The volume of AVCN after cochlear ablation showed a decline to 22% less than the control group, and the number of neurons also dropped by 25%. In PVCN, the decreased volume by 40% with significant neuronal loss of 47% was observed four month later after the cochlear ablation. And in DCN, the volume shrinking to 24% and the loss of neurons reached to 39%. The most significant change was observed in OCA (octopus ceU area), with the neuron numbers, the area and the volume of OCA decreased by 60%, 19%, and 47% respectively. There was a statistically significant difference (P < 0. 05, Mann-Whitoey U test) in the morphological changes between the two groups. Conclusion Neuronal degeneration was observed in cochlear nucleus after four months cochlear ablation.
8.Molecular epidemiology of HFMD-associated pathogen coxsackievirus A6 in Fujian Province, 2011-2013.
Wei CHEN ; Yu-wei WENG ; Wen-xiang HE ; Yong-jun ZHANG ; Xiu-hui YANG ; Huang MENG ; Jian-feng XIE ; Jin-zhang WANG ; Kui-cheng ZHENG ; Yan-sheng YAN
Chinese Journal of Virology 2014;30(6):624-629
In order to characterize the molecular epidemiology of HFMD-associated Coxsackievirus A6 (CVA6) in Fujian Province, a total of 1340 specimens from non-EV71 non-CVA16 HFMD patients were collected during 2011-2013. Isolated virus strains were identified and subtyped. Full-length coding regions for the VP1 gene of the predominant serotype CVA6 isolates were amplified and sequenced. Among the 375 non-EV71 non-CVA16 HFMD cases confirmed by virus isolation and molecular subtyping, 182 (48.5%) were found to be caused by CVA6, accounting for 7.9%, 16.2% and 39.6% HFMD-associated enteroviruses in FujianProvince during 2011, 2012, and 2013, respectively. Compared with general features observed in the HFMD epidemic, no difference in CVA6-specificity or severity rates was observed between geographical origins, gender, or age groups. Nucleotide sequence analyses of VP1 genes revealed high diversity levels of 16.2%-18.6% among CVA6 strains from Fujian Province, in contrast to the prototype CVA6 strain, and showed low levels of diversity in the amino acid sequences (4.3%-6.2%). Phylogenetic analysis also indicated that CVA6 isolates from Fujian Province were distinct from the prototype strain and other isolates from abroad; however, it was homologous to domestic strains, although the Fujian isolates clustered into multiple branches. These results suggested that significant changes in the pathogenic spectrum of HFMD in Fujian Province occurred during 2011-2013, as CVA6 was one of the predominant serotypes of HFMD. CVA6 isolates from Fujian Province were co-circulating and co-evolving with other domestic strains as multiple closely related CVA6 transmission chains were observed in Fujian Province overall and within each prefecture.
Child
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Child, Preschool
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China
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epidemiology
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Enterovirus A, Human
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classification
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genetics
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isolation & purification
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Evolution, Molecular
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Female
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Hand, Foot and Mouth Disease
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epidemiology
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virology
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Humans
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Infant
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Male
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Molecular Epidemiology
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Molecular Sequence Data
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Phylogeny
9.Do stress fractures induce hypertrophy of the grafted fibula? A report of three cases received free vascularized fibular graft treatment for tibial defects.
Yong QI ; Hong-Tao SUN ; Yue-Guang FAN ; Fei-Meng LI ; Zhou-Sheng LIN
Chinese Journal of Traumatology 2016;19(3):179-181
The presence of large segmental defects of the diaphyseal bone is challenging for orthopedic surgeons. Free vascularized fibular grafting (FVFG) is considered to be a reliable reconstructive procedure. Stress fractures are a common complication following this surgery, and hypertrophy is the main physiological change of the grafted fibula. The exact mechanism of hypertrophy is not completely known. To the best of our knowledge, no studies have examined the possible relationship between stress fractures and hypertrophy. We herein report three cases of patients underwent FVFG. Two of them developed stress fractures and significant hypertrophy, while the remaining patient developed neither stress fractures nor significant hypertrophy. This phenomenon indicates that a relationship may exist between stress fractures and hypertrophy of the grafted fibula, specifically, that the presence of a stress fracture may initiate the process of hypertrophy.
Adult
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Female
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Fibula
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pathology
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transplantation
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Fractures, Stress
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pathology
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Humans
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Hypertrophy
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Male
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Middle Aged
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Tibia
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surgery
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Tibial Fractures
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surgery
10.Temporal and spatial population dynamics of rabies virus isolates in China.
Sheng-Li MENG ; Ge-Lin XU ; Yong-Liang LEI ; Jie WU ; Jia-Xin YAN ; Xiao-Ming YANG
Chinese Journal of Virology 2011;27(3):231-237
In order to study phylogeography, population dynamics and molecular evolution of rabies viruses (RABVs) isolates from China, especially spatio-temporal dynamics, the timescale of RABVs evolution and its pattern of migration, we performed an extensive comparative analysis of RABV N gene sequence data, representing 167 isolates sampled from 20 provinces in a 78-year period (from 1931 through 2009). The available Chinese isolates could be divided into two distinct clades:Phylogroup clades I comprised Chinese group 1-4; Phylogroup clades II contained Chinese group 5-8. We found no evidence for positive selection (dN/dS>1) acting at any codon and found strong selective constraints for N gene. Bayesian Markov Chain Monte Carlo (MCMC) analysis suggested that the Chinese rabies viruses originated within the last 2000 years and the mean rates of nucleotide substitution for the N gene were approximately 4 x 10(-4) substitutions per site per year. The analyses of the spatial and spatio-temporal evolution indicated that RABV isolates from China migrated among different Provinces.
China
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Evolution, Molecular
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Monte Carlo Method
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Phylogeography
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Rabies virus
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genetics
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isolation & purification