1.Clinical analysis of acute invasive fungal sinusitis with orbital infection.
Feifei CHEN ; Haiwen HU ; Jin LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(19):1528-1529
The clinical manifestation of acute invasive fungal sinusitis was associated with facial pain,altered sense of smell, blindness and headache. Physical examinations show that dark brown nasal secretions with bone resorption in paranasal sinus. Radiographi parameters showed uneven density in paranasal sinus and intraorbital extension. Fungus smears and pathological examination can make a definitive diagnosis.
Acute Disease
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Facial Pain
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etiology
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Fungi
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isolation & purification
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Headache
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etiology
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Humans
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Mycoses
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complications
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pathology
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Paranasal Sinuses
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Sinusitis
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complications
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microbiology
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pathology
2.Evaluation of the radiofrequency ablation lesions in canine prostate with real-time harmonic gray-scale contrast-enhanced ultrasonography
Bin, HU ; Bing, HU ; Lei, CHEN ; Jia, LI ; Jin, HUANG
Chinese Journal of Medical Ultrasound (Electronic Edition) 2010;07(12):2031-2037
Objective To assess the radiofrequency ablation (RFA) lesions in canine prostate with real-time harmonic gray-scale contrast-enhanced ultrasonography and investigate the feasibility to predict these lesions.Methods A total of 5 male beagle dogs took RFA of the prostate.Radiofrequency (RF) was delivered under transrectal ultrasound (TRUS) guidance.A lesion was created in the right and left lateral lobes of canine prostate,respectively.The examination of conventional gray-scale ultrasonography,power Doppler ultrasonography,real-time harmonic gray-scale contrast-enhanced ultrasonography were performed immediately after RF procedure.All animals were subsequently sacrificed and the prostates were harvested for pathologic analysis.Thermal lesion volume was calculated based on expected shape of ellipsoid using equation.The volumes of the calculated thermal lesion on contrast-enhanced ultrasonography in dogs were compared with the volumes obtained from the pathological specimens.Results The RFA lesions could not be imaged accurately with real-time conventional gray-scale or power Doppler ultrasonography.However,contrast-enhanced low MI perfusion imaging was able to have real-time monitoring for the lesion (no blood flow).The volume of lesions was measured with contrast-enhanced ultrasonography without significant difference with those of pathologic results.Ultrasonic imaging(conventional gray-scale or power Doppler sonography)of the ablation areas also had its own characteristics.Conclusion The real-time harmonic gray-scale contrast-enhanced ultrasonography appears to be an accurate modality for assessment of RFA lesions.Conventional gray-scale and power Doppler sonography had their own characteristics to evaluate the RFA lesion.
4.Molecular modeling of peptide antibiotics hPAB-?and its artificial mutants construction
Xiancai RAO ; Xiaolin JIN ; Shu LI ; Jinchuan HU ; Xiaomei HU ; Zhijin CHEN ; Fuquan HU ;
Journal of Medical Postgraduates 2003;0(09):-
Objectives: To design the mutants of peptide antibiotics hPAB ? based on its molecular structure. Methods: The three dimension structure of hPAB ? was constructed by protein homology modeling method. The mutant molecules were designed and generated by PCR and inserted into pQE CP4 expression plasmid. The recombinant plasmids were identified by PCR and DNA sequencing and then transformed into Escherichia coli JM109 to express target fusion proteins. Results:Peptide hPAB ? shows one ? helical and three ? sheet in its structure. Its ? helical regions seem play a key role in the formation of active oligomer. Aside from positioning Thr 7 and Lys 10 into contact positions, the orientation of the ? helix is conserved about the oligome core, forming a ridge around it. Additionally, the dipoles of the helices would overlap to create a positively charged region near the core. These dipoles may be offset, however, by the presence of Asp 4 at the base of the helix. Two mutant molecules, hPAB ? 38 and hPAB ? 34, were designed by deleting N or/and C terminal 2~5 amino acid residues based on hPAB ? structure. The recombinant plasmids containing the mutants gene can express interest fusion proteins in E. coli JM109 successfully. Conclusions: Design, cloning and expression of the mutants of peptide antibiotics hPAB ? lay down the foundation for screening of the mutant of shorter peptide chain and having high or same antimicrobial activity.
5.Conceiving of oncologic specianst training
Yazhou HU ; Hong ZHAO ; Yanglin CHEN ; Jin GU
Chinese Journal of Medical Science Research Management 2008;21(5):299-301
According to the design of medical specialist system and the features of Cancer Prevention and Treatment in China, suggestions of Oncologic specialist training were proposed as following. Applying the training by phases is suitable, the conceptions, principles and protocols for Comprehensive treatment and standardized treatment are core contents for the Oncologic specialist training process, which should be carried out in tumor hospital prior to general hospital, the special therapy for the special disease is the aim of Oncolngic specialist training.
6.Detection of interleukin-10 in sera and culture supernatants of CD4 +CD25 + T cells from children with atopic dermatitis
Wanwan JIN ; Boying HU ; Xinhua MA ; Shisheng CHEN ; Yu CAO
Chinese Journal of Dermatology 2013;(1):13-15
Objective To determine the level of interleukin (IL)-10 in sera and culture supernatants of CD4+CD25+T cells from children with atopic dermatitis (AD),and to evaluate its relationship with clinical course and severity of AD.Methods Totally,46 children with AD and 31 healthy controls were included in the study.All the patients were divided into 3 groups,i.e.,mild (n =10),moderate (n =16) and severe (n =20) group,according to severity scoring of atopic dermatitis (SCORAD) score.Venous blood samples were obtained from the patients and healthy controls.CD4+CD25+ regulatory T cells were separated from the blood samples by magnetic cell sorting (MACS) system in two steps and cultured in vitro.Enzyme linked immunosorbent assay (ELISA) was conducted to quantify the level of IL-10 in sera and culture supernatants of CD4+CD25 + T cells from these subjects.Analysis of variance was carried out to compare the level of supematant and serum IL-10 between the patients and controls,and Pearson correlation analysis to assess the relationship between the level of IL-10 and SCORAD score.Results The patients with mild,moderate and severe AD showed a similar serum IL-10 level compared with the healthy controls ((43.10 ± 25.07) pg/ml,(68.40 ± 36.65) pg/ml and (55.55 ± 41.97) pg/ml vs.(58.27 ± 36.84) pg/ml,all P > 0.05).The level of supernatant IL-10 secreted by CD4+CD25+ T cells from the controls was significantly higher than that from the patients with severe AD ((55.15 ± 11.15) pg/ml vs.(27.25 ± 7.01) pg/ml,P < 0.05),but similar to that from the patients with mild and moderate AD ((52.96 ± 11.69) pg/ml and (49.86 ± 9.18) pg/ml,respectively,both P > 0.05).The level of secreted IL-10 was negatively correlated with SCORAD score (r =-0.757,P < 0.01),whereas the serum level of IL-10 showed no statistical correlation with SCORAD score.Conclusion CD4+CD25+ T cells and IL-10 may be implicated in the development of AD.
7.Effects of early tracheostomy on patients with acute severe brain trauma
Geng ZHANG ; Mahong HU ; Yangbo CHEN ; Xin JIN ; Dingkun WANG
Chinese Journal of Trauma 2012;28(7):597-601
Objective To evaluate the effects of early and late tracbeostomy on patients with acute severe cerebral trauma.Methods In the retrospective study,167 patients with severe brain trauma ( GCS < 9 ) requiring prolonged mechanical ventilation ( MV ) were managed by percutaneous dilational tracheostomy (PDT) from May 2001 to December 2010.According to the transoral incubation MV duration,the patients were divided into the early tracheostomy (ET) group ( MV duration≤7 d,81 cases)and late tracheostomy (LT) group (MV duration > 7 d,86 cases).The basic clinical characteristics,pre-and post-PDT MV period,total MV duration,length of post-PDT ICU stay,length of ICU stay,length of hospital stay and mortality were compared between the two groups.Results The two groups showed no statistical differences in aspects of age,sex,acute physiology and chronic health evaluation Ⅱ (A-PACHE Ⅱ ) score,GCS,trauma index and craniotomy rate (P>0.05).Compared with LT group,ET group significantly shortened the pre-PDT MV period [ (5.16 ± 1.33 ) d∶ ( 1 1.64 ± 4.25 ) d,P < 0.01 ],post-PDT MV period ( median:15.0 d∶ 17.0 d,P < 0.05 ),total MV duration ( median:18.0 d∶26.0 d,P<0.05),length of post-PDT ICU stay (median:16.0 d∶21.0 d,P<0.01 ) and length of ICU stay (median:21.0 d∶32.0 d,P <0.01 ).But the two groups had no statistical differences concerning the length of hospital stay ( P > 0.05 ),ICU mortality ( 17% ∶ 14%,P > 0.05 ) and in-hospital mortality (25%∶28.4%,P >0.05).Kaplan-Meier curves showed that the frequency of MV and ICU stay rate within 60 days in ET group were significantly lower than those in LT group.Conclusions For patients with severe brain trauma,early tracheostomy shortens the duration of MV and length of ICU stay without affecting their prognosis.Thereby,tracheostomy can be performed at early stage when managing acute severe brain injury.
8.Application of quality control circle campaign in emergency transport safety of criticaly ill patients
Jingfen JIN ; Shuihong CHEN ; Linlin SHAO ; Caizhen HU
Chinese Journal of Hospital Administration 2012;28(1):57-59
The QCC campaign at the emergency center was themed as minimizing incidence of risky transport of critically ill patients,which aimed at continued quality improvement by means of conditions review,problem analysis,measures making,and procedure improvement.The incidence of risky transports dropped from 26% to 0.9% in six months.Another promising outcome was a sharp betterment of clinical nurse management. It has proved that QCC can effectively downsize risky transports of critically ill patients,making it a functional means to improve nursing quality.
9.Applications of Phospho-histone H2AX Enzyme-Linked Immunosorbent Assay in Vitro Genotoxicity Evaluation of Cigarette Smoke
Liwei FU ; Huan CHEN ; Jin YANG ; Hongwei HOU ; Qingyuan HU
Chinese Journal of Analytical Chemistry 2014;(3):320-325
Phospho-histone H2AX(γH2AX) has been widely used in vitro genotoxicity evaluation of ionizing radiation, carcinogenic substances and cigarette smoke as an important biomarker of DNA double stranded breaks ( DSBs) . The study developed an enzyme-linked immunesorbent assay for detection of the content ofγH2AX in cells to evaluate the genotoxicity of cigarette smoke. The study exposed CHO cells with cigarette smoke total particulate matter ( TPM) and cigarette smoke condensate ( CSC) of different dose, dose-effect relationship between smoke exposure and DNA damage and the poisonous difference of cigarette smoke components has been investigated by detecting the content change ofγH2 AX in cells under different exposure time and dose. In addition, reactive oxygen species ( ROS) in cells were also detected to study the mechanism of cigarette smoke exposure induced DSBs. The experiment result showed that the required time for the level ofγH2AX in cells grew to the peak prolonged with increased exposure dose. Once the level of γH2AX in cells grew to the peak value, then it decreased slowly; the level of γH2AX in cells rised with increasing dose of cigarette smoke;The effect of TPM on the content change of γH2AX was more than CSC; Moreover, smoke exposure could induce concentration increase of ROS in cells, and a good correlation of content change of ROS and γH2AX in cells were found, free radicals in cigarette smoke may be one major cause of DSBs.
10.Clinical analysis of the nipple discharge:a report of 174 cases
Weida SHEN ; Li WANG ; Hong CHEN ; Wei JIN ; Junyan HU
Chinese Journal of Primary Medicine and Pharmacy 2009;16(2):253-254
Objective To investigate the characteristic,diagnosis and treatment of the nipple discharge.Methods The clinical data of 174 cases who were diagnosed as nipple dlscharge from January 2001 to December2006 were collected and analyzed retrospectively.Results Among those 174 cases,136 cases were confirmed histopathologieally to be intraduetal papilloma.The confirmed diagnosis rate of intraduetal papilloma by galaetograghy was 85.00%.Carcinoma-charge rate of the intraduetal papilloma was 5.17%.Conclusion Nipple discharge was the most common symptom in the intraductal papillomatesis.The galaetography was a valuable method in the diagnosis of the intraduetal papilloma.There was carcinoma-charge possibility in the intraduetal papilloma.