1.Situation of urinary tract infection and antibiogram in patients with prostatic fibroma in the Central Military Hospital
Journal of Vietnamese Medicine 2001;263(9):138-142
The authors investigated the microbial pathogens responsible for acute urinary tract infection and the antimicrobial susceptibility from 216 patients over 60 years old with benign prostatic hyperplasia from 1/1999 to 6/2000 we have found: Staphylococcus spp (40.6%), E. coli (29%), Pseudomonas spp (19.7%), Enterococcus spp (7.5%), Proteus spp (1.7%), Klebsiella spp (1.1%). Many bacteria were sensitive to imipenem. Often used antimicrobials were gentamycine, kanamycine, ciprofloxacine. Most bacteria were resistant to usual antimicrobial drugs. Most of the patients were from 70 to 80 years old (51.2%). The patients over 80 were at high risk of infection (90%).
Prostatic Neoplasms
;
Urinary Tract Infections
;
Fibroma
;
Prostatic Diseases
2.Retrospective study on 34 cases who had underwent surgical treatment for craniopharyngioma
Journal of Practical Medicine 2002;435(11):45-47
Between January 2000 and July 2001, 34 patients underwent surgery for craniopharyngiomas at the Neurosurgical Department of Chî RÉy Hospital. The mean age of these patients (15 males, 19 females) was 20 years (from 3 to 45 years). Among 34 open surgical procedures, craniopharyngiomas were removed completely in 2 cases (2.9%), subtotally in 6 (17.6%), partially in 17 (50%) and biopsy was performed in 9 cases (26.5%).
Craniopharyngioma
;
surgery
3.Morbidity and mortality of acute respiratory infections in Thai Binh province, Vietnam, 2002-2005
Hien Tran Nguyen ; Dinh Ngoc Pham ; Dung Chi Tham ; Hoa Thuy Nguyen ; Dung Kim Thanh ; Chung Thanh Nguyen ; Diu Van Pham ; Kiyosu Taniguchi
Journal of Preventive Medicine 2008;96(4):5-12
Background: Acute Respiratory Infection (ARI) is a common disease in developing countries. Morbidity and mortality of ARI are high, especially among children under 15 years old. Objectives: To describe socio-graphic factors, seasonal patterns, risky areas and determine the morbidity and mortality rates of acute respiratory infections in Thai Binh province. Subjects and method: This retrospective study reviewed the medical records of 4,585 hospital admitted patients who were diagnosed with ARI including upper and lower respiratory infections such as sore throat, pharyngitis, bronchitis, pneumonia and bronchitis-pneumonia at 8 district hospitals and 1 provincial hospital in Thai Binh province during 2002-2005. The selected medical records were based on the available check list and two standard screening tests. Results:Morbidity and mortality of ARI in Thai Binh province were 61.6 and 0.52, respectively. ARI mainly occurred among children under 5 years old, of which the highest mortality was among those under 12 months of age. Male children were at higher risk of acquiring ARI, but less prone to death than female. Occupation did not significantly associate with the risk of ARI. The morbidity increased sharply during inter-season, e.g. March and October. Thai Binh city, Kien Xuong and Tien Hai district were reported with the highest morbidity in accompany of the high mortality as consequences. Conclusion: The prevention and control methods were recommended to annually focus on the male children aged less than 5 years old during March and October in Thai Binh city, Kien Xuong and Tien Hai district.
morbidity
;
mortality
;
acute respiratory infections
4.Recent Progress in Understanding the Conformational Mechanism of Heterotrimeric G Protein Activation.
Nguyen Minh DUC ; Hee Ryung KIM ; Ka Young CHUNG
Biomolecules & Therapeutics 2017;25(1):4-11
Heterotrimeric G proteins are key intracellular coordinators that receive signals from cells through activation of cognate G protein-coupled receptors (GPCRs). The details of their atomic interactions and structural mechanisms have been described by many biochemical and biophysical studies. Specifically, a framework for understanding conformational changes in the receptor upon ligand binding and associated G protein activation was provided by description of the crystal structure of the β2-adrenoceptor-Gs complex in 2011. This review focused on recent findings in the conformational dynamics of G proteins and GPCRs during activation processes.
GTP-Binding Proteins*
;
Heterotrimeric GTP-Binding Proteins
5.Comprehensive Analysis of Non-Synonymous Natural Variants of G Protein-Coupled Receptors.
Hee Ryung KIM ; Nguyen Minh DUC ; Ka Young CHUNG
Biomolecules & Therapeutics 2018;26(2):101-108
G protein-coupled receptors (GPCRs) are the largest superfamily of transmembrane receptors and have vital signaling functions in various organs. Because of their critical roles in physiology and pathology, GPCRs are the most commonly used therapeutic target. It has been suggested that GPCRs undergo massive genetic variations such as genetic polymorphisms and DNA insertions or deletions. Among these genetic variations, non-synonymous natural variations change the amino acid sequence and could thus alter GPCR functions such as expression, localization, signaling, and ligand binding, which may be involved in disease development and altered responses to GPCR-targeting drugs. Despite the clinical importance of GPCRs, studies on the genotype-phenotype relationship of GPCR natural variants have been limited to a few GPCRs such as β-adrenergic receptors and opioid receptors. Comprehensive understanding of non-synonymous natural variations within GPCRs would help to predict the unknown genotype-phenotype relationship and yet-to-be-discovered natural variants. Here, we analyzed the non-synonymous natural variants of all non-olfactory GPCRs available from a public database, UniProt. The results suggest that non-synonymous natural variations occur extensively within the GPCR superfamily especially in the N-terminus and transmembrane domains. Within the transmembrane domains, natural variations observed more frequently in the conserved residues, which leads to disruption of the receptor function. Our analysis also suggests that only few non-synonymous natural variations have been studied in efforts to link the variations with functional consequences.
Amino Acid Sequence
;
DNA
;
Genetic Variation
;
Pathology
;
Physiology
;
Polymorphism, Genetic
;
Receptors, Opioid
;
Vital Signs
6.Tetanus toxin fragment C fused to flagellin makes a potent mucosal vaccine.
Shee Eun LEE ; Chung Truong NGUYEN ; Soo Young KIM ; Thinh Nguyen THI ; Joon Haeng RHEE
Clinical and Experimental Vaccine Research 2015;4(1):59-67
PURPOSE: Recombinant subunit vaccines provide safe and targeted protection against microbial infections. However, the protective efficacy of recombinant subunit vaccines tends to be less potent than the whole cell vaccines, especially when they are administered through mucosal routes. We have reported that a bacterial flagellin has strong mucosal adjuvant activity to induce protective immune responses. In this study, we tested whether FlaB could be used as a fusion partner of subunit vaccine for tetanus. MATERIALS AND METHODS: We constructed fusion proteins consisted with tetanus toxin fragment C (TTFC), the nontoxic C-terminal portion of tetanus toxin, and a Toll-like receptor 5 agonist from Vibrio vulnificus (FlaB). Mice were intranasally administered with fusion protein and protective immune responses of the vaccinated mice were analyzed. RESULTS: FlaB-TTFC recombinant protein induced strong tetanus-specific antibody responses in both systemic and mucosal compartments and prolonged the survival of mice after challenge with a supra-lethal dose of tetanus toxin. CONCLUSION: This study establishes FlaB as a successful fusion partner for recombinant subunit tetanus vaccine applicable through mucosal route, and it further endorses our previous observations that FlaB could be a stable adjuvant partner for mucosal vaccines.
Animals
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Antibody Formation
;
Flagellin*
;
Mice
;
Tetanus
;
Tetanus Toxin*
;
Tetanus Toxoid
;
Toll-Like Receptor 5
;
Vaccines
;
Vaccines, Subunit
;
Vibrio vulnificus
7.Bilateral Recurrent Thigh Abscesses for Five Years after a Transobturator Tape Implantation for Stress Urinary Incontinence.
Shin Young LEE ; Joon Young KIM ; Se Joon PARK ; Yong Wook KWON ; Hoai Bac NGUYEN ; In Ho CHANG ; Tae Hyoung KIM ; Young Sun KIM
Korean Journal of Urology 2010;51(9):657-659
The synthetic, tension-free midurethral sling procedure using transobturator tape (TOT) was introduced in 2001 and has become the most widely used procedure for the treatment of female urinary incontinence worldwide. However, infectious complications associated with erosions have occasionally been reported because of a foreign body reaction to the polypropylene mesh. We observed a case of a bilateral recurrent thigh abscess manifesting 5 years after a TOT sling procedure. The patient had recurrent thigh abscesses with repeated incisions and drainages in the past 1 year. Five months earlier, she had undergone a procedure to remove the eroded suburethral mesh, but incompletely. The right thigh abscess recurred, and ultimately the residual mesh was completely excised with abscess drainage. Complete mesh removal is very important to prevent abscess recurrence, and it is necessary for any urologist treating women who have undergone the TOT procedure to be aware of the possibility of abscesses occurring for a long time after the operation.
Abscess
;
Cytochrome P-450 CYP1A1
;
Drainage
;
Female
;
Foreign-Body Reaction
;
Humans
;
Polypropylenes
;
Recurrence
;
Suburethral Slings
;
Thigh
;
Urinary Incontinence
8.Optimization and Limitation of Calcium Ionophore to Generate DCs from Acute Myeloid Leukemic Cells.
Thanh Nhan Nguyen PHAM ; Bo Hwa CHOI ; Hyun Kyu KANG ; Chun Chi JIN ; Nguyen Hoang Tuyet MINH ; Sang Ki KIM ; Jong Hee NAM ; Deok Hwan YANG ; Yeo Kyeoung KIM ; Hyeoung Joon KIM ; Ik Joo CHUNG ; Je Jung LEE
Cancer Research and Treatment 2007;39(4):175-180
PURPOSE: Calcium ionophore (CI) is used to generate dendritic cells (DCs) from progenitor cells, monocytes, or leukemic cells. The aim of this study was to determine the optimal dose of CI and the appropriate length of cell culture required for acute myeloid leukemia (AML) cells and to evaluate the limitations associated with CI. MATERIALS AND METHODS: To generate leukemic DCs, leukemic cells (4 x 10(6) cells) from six AML patients were cultured with various concentrations of CI and/or IL-4 for 1, 2 or 3 days. RESULTS: Potent leukemic DCs were successfully generated from all AML patients, with an average number of 1.2 x 10(6) cells produced in the presence of CI (270 ng/ml) for 2 days. Several surface molecules were clearly upregulated in AML cells supplemented with CI and IL-4, but not CD11c. Leukemic DCs cultured with CI had a higher allogeneic T cell stimulatory capacity than untreated AML cells, but the addition of IL-4 did not augment the MLR activity of these cells. AML cells cultured with CI in the presence or absence of IL-4 showed increased levels of apoptosis in comparison to primary cultures of AML cells. CONCLUSION: Although CI appears to be advantageous in terms of time and cost effectiveness, the results of the present study suggest that the marked induction of apoptosis by CI limits its application to the generation of DCs from AML cells.
Apoptosis
;
Calcium*
;
Cell Culture Techniques
;
Cost-Benefit Analysis
;
Dendritic Cells
;
Humans
;
Interleukin-4
;
Leukemia, Myeloid, Acute
;
Monocytes
;
Stem Cells
9.Effect of the fourth nucleotide at the 3′ end of neuraminidase and matrix viral genomic RNA on the pathogenicity of influenza virus A/PR/8/34.
Chung Young LEE ; Hyuk Joon KWON ; Thanh Trung NGUYEN ; Ilhwan KIM ; Hyung Kwan JANG ; Jae Hong KIM
Journal of Veterinary Science 2017;18(S1):307-313
Twelve nucleotides located at the 3′ end of viral genomic RNA (vRNA) are conserved among influenza A viruses (IAV) and have a promoter function. Hoffmann's 8-plasmid reverse genetics vector system introduced mutations at position 4, C nucleotide (C4) to U nucleotide (U4), of the 3′ ends of neuraminidase (NA) and matrix (M) vRNAs of wild-type A/PR/8/34 (PR8). This resulted in a constellation of C4 and U4 vRNAs coding for low (polymerases) and relatively high (all others) copy number proteins, respectively. U4 has been reported to increase promoter activity in comparison to C4, but the constellation effect on the replication efficiency and pathogenicity of reverse genetics PR8 (rgPR8) has not been fully elucidated. In the present study, we generated 3 recombinant viruses with C4 in the NA and/or M vRNAs and rgPR8 by using reverse genetics and compared their pathobiological traits. The mutant viruses showed lower replication efficiency than rgPR8 due to the low transcription levels of NA and/or M genes. Furthermore, C4 in the NA and/or M vRNAs induced lower PR8 virus pathogenicity in BALB/c mice. The results suggest that the constellation of C4 and U4 among vRNAs may be one of the multigenic determinants of IAV pathogenicity.
Animals
;
Clinical Coding
;
Influenza A virus
;
Influenza, Human*
;
Mice
;
Neuraminidase*
;
Nucleotides
;
Orthomyxoviridae*
;
Reverse Genetics
;
RNA*
;
Virulence*
10.Prognostic Usefulness of Maximum Standardized Uptake Value on FDG-PET in Surgically Resected Non-small-cell Lung Cancer.
Xuan Canh NGUYEN ; Won Woo LEE ; Sook Whan SUNG ; Sanghoon JHEON ; Yu Kyeong KIM ; Dong Soo LEE ; June Key CHUNG ; Myung Chul LEE ; Sang Eun KIM
Nuclear Medicine and Molecular Imaging 2006;40(4):205-210
PURPOSE: FDG uptake on positron emission tomography (PET) has been considered a prognostic indicator in non-small cell lung cancer (NSCLC). The aim of this study was to assess the clinical significance of maximum value of SUV (maxSUV) in recurrence prediction in patients with surgically resected NSCLC. MATERIALS AND METHODS: NSCLC patients (n=42, F:M=14:28, age 62.3+/-12.3 y) who underwent curative resection after FDG-PET were enrolled. Twenty-nine patients had pathologic stage I, and 13 had pathologic stage II. Thirty-one patients were additionally treated with adjuvant oral chemotherapy. MaxSUVs of primary tumors were analyzed for correlation with tumor recurrence and compared with pathologic or clinical prognostic indicators. The median follow-up duration was 16 mo (range, 3-26 mo). RESULTS: Ten (23.8%) of the 42 patients experienced recurrence during a median follow-up of 7.5 mo (range, 3-13 mo). Univariate analysis revealed that disease-free survival (DFS) was significantly correlated with maxSUV (<7 vs. > or =7, p=0.006), tumor size (<3 cm vs. > or =3 cm, p=0.024), and tumor cell differentiation (well/moderate vs. poor, p=0.044). However, multivariate Cox proportional analysis identified maxSUV as the single determinant for DFS (p=0.014). Patients with a maxSUV of > or =7 (n=10) had a significantly lower 1-year DFS rate (50.0%) than those with a maxSUV of <7 (n=32, 87.5%). CONCLUSION: MaxSUV is a significant independent predictor for recurrence in surgically resected NSCLC. FDG uptake can be added to other well-known factors in prognosis prediction of NSCLC.
Carcinoma, Non-Small-Cell Lung
;
Cell Differentiation
;
Disease-Free Survival
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Lung Neoplasms*
;
Lung*
;
Positron-Emission Tomography
;
Prognosis
;
Recurrence