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Phylogeny and evolutionary genetics of porcine parvovirus from swine samples in Korea
In-Ohk Ouh(In-Ohk Ouh),Ju-Yeon Lee(Ju-Yeon Lee),Seyeon Park(Seyeon Park),Min-Su Cho(Min-Su Cho),Byeong Sul Kang(Byeong Sul Kang),Soo dong Cho(Soo dong Cho),In-Soo Cho(In-Soo Cho),Jae-Young Song(Jae-Yo 한국예방수의학회 2017 한국예방수의학회 학술대회자료집 Vol.2017 No.-
Production of recombinant VP2 protein of porcine parvovirus isolated in Korea
In-Ohk Ouh(In-Ohk Ouh),Ju-Yeon Lee(Ju-Yeon Lee),Min-Su Cho(Min-Su Cho),Byeong Sul Kang(Byeong Sul Kang),Seyeon Park(Seyeon Park),Soo dong Cho(Soo dong Cho),In-Soo Cho(In-Soo Cho),Jae Young Song(Jae Yo 한국예방수의학회 2017 한국예방수의학회 학술대회자료집 Vol.2017 No.-
Ouh Yung-Taek,Park Ji Jeong,Kang Minjoo,Kim Miseon,Song Jae Yun,Shin So Jin,Shim Seung-Hyuk,Yoo Heon Jong,Lee Maria,Lee Sung-Jong,Shin Whan,Chong Gun Oh,Choi Min Chul,Choi Chel Hun,Min Kyung-Jin 대한의학회 2021 Journal of Korean medical science Vol.36 No.24
Background: Cervical cancer is the fourth common cancer in women worldwide. The Papanicolau test is the primary screening procedure to detect abnormal cervical cells. Colposcopy is the main procedure for discriminating high-grade cervical lesions. The study aimed at clarifying the discrepancy between cervical cytology and colposcopic biopsy histology as well as confounding factors. Methods: Eligible patients visited thirteen tertiary hospitals for colposcopic biopsy following cervical cytology and human papillomavirus (HPV) genotypes between January and December 2018. Baseline characteristics including age, body mass index (BMI), and parity were collected. Results: In our study, 3,798 eligible patients were included. Mean age of patients was 42.7 (19–88) years and mean BMI was 22.5 (16.9–34.1) kg/m2 . The referred cervical cytologic findings consisted of 495 normal, 1,390 atypical squamous cells of undetermined significance, 380 atypical squamous cells cannot exclude high-grade squamous intraepithelial lesion, 792 low-grade squamous intraepithelial lesion, 593 high-grade squamous intraepithelial lesion, 79 atypical glandular cells, 46 squamous cell carcinoma, and 23 adenocarcinoma. HPV-positive findings were found in 3,008 (79.2%) patients and were not detected in 914 (24.1%) cases. The risk of unexpected low-grade lesions from histology was higher in patients > 45 years (odds ratio [OR], 2.137; 95% confidence intervals [CIs], 1.475–3.096). In contrast, the risk of unexpected high-grade lesions from colposcopic biopsy was lower in patients ≥ 45 years (OR, 0.530; 95% CI, 0.367–0.747) and HPV 16/18 infection was higher than other HPV (OR, 1.848; 95% CI, 1.385–2.469). Conclusion: Age and HPV genotypes were responsible for the discrepancies between cytology and histology. Precautions should be taken for women over the age of 45 in triage for colposcopy in order to avoid unnecessary testing.
Proteomic Analysis of Testicular Ischemia-Reperfusion Injury in Rats
OUH, In-Ohk,SEO, Min-Goo,SHAH, Fawad-Ali,GIM, Sang-Ah,KOH, Phil-Ok The Japanese Society of Veterinary Science 2014 The Journal of veterinary medical science Vol.76 No.3
<P><B>ABSTRACT</B></P><P>Testicular torsion is a urological emergency that leads to serious testicular damage and male infertility. We performed this study to identify specific proteins that are differentially expressed in response to testicular torsion and detorsion-induced ischemia-reperfusion (I-R) injury. Adult male rats were divided into two groups: a sham-operated group and a testicular I-R group. Testicular torsion was induced by rotating the left testis 720° in a clockwise direction for 1 hr, and then, detorsion was performed for 24 hr. After this testicular tissues were collected, protein analysis was performed using two-dimensional gel electrophoresis and Western blot analyses. Testicular I-R injury resulted in serious histopathologic damage to the germinal cells in the seminiferous tubules and increased the number of TUNEL-positive cells in testicular tissue. Specific protein spots with a greater than 2.5-fold change in intensity between the sham-operated and testicular I-R groups were identified by mass spectrometry. Among these proteins, levels of peroxiredoxin 6, thioredoxin, heterogeneous nuclear ribonucleoproteins, ubiquitin carboxyl terminal hydrolase isozyme L5 and zinc finger AN1-type domain 3 were decreased in the testicular I-R group compared to the sham-operated group. Moreover, Western blot analysis clearly showed the decrease of these proteins in the testicular I-R group. These proteins have spermatogenesis and anti-oxidative functions. These findings suggest that testicular I-R results in cell death due to altered expression of several proteins with spermatogenesis and anti-oxidation functions.</P>
Capacitive Readout Circuit for Tri-axes Microaccelerometer with Sub-fF Offset Calibration
Ouh, Hyun Kyu,Choi, Jungryoul,Lee, Jungwoo,Han, Sangyun,Kim, Sungwook,Seo, Jindeok,Lim, Kyomuk,Seok, Changho,Lim, Seunghyun,Kim, Hyunho,Ko, Hyoungho The Institute of Electronics and Information Engin 2014 Journal of semiconductor technology and science Vol.14 No.1
This paper presents a capacitive readout circuit for tri-axes microaccelerometer with sub-fF offset calibration capability. A charge sensitive amplifier (CSA) with correlated double sampling (CDS) and digital to equivalent capacitance converter (DECC) is proposed. The DECC is implemented using 10-bit DAC, charge transfer switches, and a charge-storing capacitor. The DECC circuit can realize the equivalent capacitance of sub-fF range with a smaller area and higher accuracy than previous offset cancelling circuit using series-connected capacitor arrays. The readout circuit and MEMS sensing element are integrated in a single package. The supply voltage and the current consumption of analog blocks are 3.3 V and $230{\mu}A$, respectively. The sensitivities of tri-axes are measured to be 3.87 mg/LSB, 3.87 mg/LSB and 3.90 mg/LSB, respectively. The offset calibration which is controlled by 10-bit DECC has a resolution of 12.4 LSB per step with high linearity. The noise levels of tri-axes are $349{\mu}g$/${\sqrt}$Hz, $341{\mu}g$/${\sqrt}$Hz and $411{\mu}g$/${\sqrt}$Hz, respectively.