1.Serous and mucinous cystadenoma of the pancreas: report of three cases.
Chang Yeul CHA ; Wook KIM ; Il Young PARK ; Hae Myung JEON ; Seung Nam KIM ; Jong Nam WON ; Eung Seul HYUN
Journal of the Korean Surgical Society 1993;45(2):286-292
No abstract available.
Cystadenoma, Mucinous*
;
Mucins*
;
Pancreas*
2.Effect of Lactobacillus plantarum on noxious gas emission and carcass quality grade in finishing pigs.
Chun Nam CHA ; Eun Kee PARK ; Chang Yeul YOO ; Suk KIM ; Hu Jang LEE
Journal of Biomedical Research 2015;16(2):72-76
This study investigated the effects of LactoPlanta(R) (Lactobacillus plantarum (L. plantarum), 2.0 x 10(9) colony forming units (CFU)/kg) on reduction of noxious gas emission in pig houses as well as improvement of carcass weight and quality in finishing pigs. A total of 850 finishing pigs were assigned to four treatment groups: control (CON, basal diet) (n=190), LP-0.1, 0.1% LactoPlanta(R) (n=210), LP-0.2, 0.2% LactoPlanta(R) (n=230), and LP-0.4, 0.4% LactoPlanta(R) (n=220). Ammonia and hydrogen sulfide concentrations were significantly reduced in all treatment groups compared to CON. Mercaptan contents and carcass weights of LP-0.2 and LP-0.4 were significantly decreased compared to CON, whereas there were no significant differences between LP-0.1 and CON. Carcass weight of LP-0.1 was slightly higher than that of CON, but there was no significant difference. However, carcass weights of LP-0.2 and LP-0.4 were significantly higher than that of CON (P<0.05). The prevalence of grade A carcasses in groups administered with L. plantarum (46.7~63.3%) was higher than that in CON (43.3%) and increased in a dose-dependent manner. Based on the results of this study, L. plantarum could be an effective candidate to reduce noxious gas emissions in finishing pig houses as well as improve carcass weight and quality in finishing pigs.
Ammonia
;
Hydrogen Sulfide
;
Lactobacillus plantarum*
;
Prevalence
;
Stem Cells
;
Swine*
;
Weights and Measures
3.Analysis of antibiotic residues in milk from healthy dairy cows treated with bovine mastitis ointment using ultra-performance liquid chromatography coupled with electrospray tandem mass spectrometry.
Eun Kee PARK ; Yong Jae RYU ; Chun Nam CHA ; Chang Yeul YOO ; Suk KIM ; Hu Jang LEE
Korean Journal of Veterinary Research 2016;56(4):233-239
This study was conducted to analyze penicillin G (PEG), streptomycin (STR) and neomycin (NEO) residues in milk of healthy lactating cows. Milk samples were collected from all four quarters of 12 dairy cows 2–7 days after intramammary infusions of an ointment containing PEG, STR and NEO once (n = 4; group I) or twice (n = 4, group II) daily. Ultra-performance liquid chromatography coupled with electrospray tandem mass spectrometry was used to determine the antibiotic residues in the samples. The correlation coefficient (r 2) of the calibration curves for all antibiotics was > 0.999 and the limits of detection and quantification were 0.002–0.005 µg/mL and 0.007–0.02 µg/mL, respectively. Recovery rates were ranged from 75.5 to 92.3%. In group I, PEG, STR and NEO residues were detected in milk at 2, 3 and 2 days post-treatment, respectively, which were below the maximum residue limit (MRL). In group II, PEG, STR and NEO residues were detected in milk at 2, 3 and 3 days post-treatment, respectively, which were bellow the MRL. These results suggest that a 3-day for milk withdrawal period after the ointment treatment might be sufficient for reduction of the antibiotic residues below the MRL.
4.Antibacterial and therapeutic effects of a combination of Sophora flavescens and Glycyrrhiza uralensis Fischer ethanol extracts on mice infected with Streptococcus pyogenes.
Eun Ah YU ; Chun Nam CHA ; Eun Kee PARK ; Chang Yeul YOO ; Suk KIM ; Hu Jang LEE
Korean Journal of Veterinary Research 2014;54(3):189-192
This study evaluated the antibacterial effects of a mixture of Sophorae radix and Glycyrrhiza uralensis Fischer (1 : 1) ethanol extracts (SGE) on mice infected with Streptococcus (S.) pyogenes. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration of SGE necessary for antibacterial effects against S. pyogenes were 20 microg/mL. Based on the time-kill curves for S. pyogenes, SGE was effective at 4x MIC after 16 h. On Day 12 after challenge, the survival rate of mice treated with 2.0 mg/kg SGE was 60%. In conclusion, SGE had potent in vitro and in vivo antibacterial activities against S. pyogenes.
Animals
;
Complex Mixtures
;
Ethanol*
;
Glycyrrhiza uralensis*
;
Mice*
;
Microbial Sensitivity Tests
;
Plants, Medicinal
;
Sophora*
;
Streptococcus
;
Streptococcus pyogenes*
;
Survival Rate
;
Treatment Outcome
5.Antibacterial and therapeutic effects of a combination of Sophora flavescens and Glycyrrhiza uralensis Fischer ethanol extracts on mice infected with Streptococcus pyogenes.
Eun Ah YU ; Chun Nam CHA ; Eun Kee PARK ; Chang Yeul YOO ; Suk KIM ; Hu Jang LEE
Korean Journal of Veterinary Research 2014;54(3):189-192
This study evaluated the antibacterial effects of a mixture of Sophorae radix and Glycyrrhiza uralensis Fischer (1 : 1) ethanol extracts (SGE) on mice infected with Streptococcus (S.) pyogenes. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration of SGE necessary for antibacterial effects against S. pyogenes were 20 microg/mL. Based on the time-kill curves for S. pyogenes, SGE was effective at 4x MIC after 16 h. On Day 12 after challenge, the survival rate of mice treated with 2.0 mg/kg SGE was 60%. In conclusion, SGE had potent in vitro and in vivo antibacterial activities against S. pyogenes.
Animals
;
Complex Mixtures
;
Ethanol*
;
Glycyrrhiza uralensis*
;
Mice*
;
Microbial Sensitivity Tests
;
Plants, Medicinal
;
Sophora*
;
Streptococcus
;
Streptococcus pyogenes*
;
Survival Rate
;
Treatment Outcome
6.Clear Cell Adenocarcinoma of the Urinary Bladder.
Joo Yeol CHEONG ; Chang Soo OH ; Ki Yeul CHOI ; Sang Hyeon CHEON ; Ro Jung PARK ; Hee Jeong CHA
Korean Journal of Urology 2003;44(9):934-936
A case of a clear cell carcinoma of the urinary bladder is reported. A 48-year-old female was referred to our hospital complaining of gross hematuria and terminal dysuria. She had a nodular tumor, 3x4cm in diameter, located on the bladder neck, trigone and posterior urethra. The patient underwent anterior pelvic exenteration and urinary diversion with an ileal conduit. A histopathological examination revealed a tumor composed of cells with eosinophilic cytoplasm, and partly of cells with clear cytoplasm or hobnail-shaped cells, arranged in tubular and papillary architectures. This showed the findings of a clear cell adenocarcinoma of the bladder and urethra. The patient underwent 6 courses of adjuvant chemotherapy with cisplatin and 5-FU. The patient shows no evidence of recurrence or metastasis at the 8 month postoperative follow-up.
Adenocarcinoma, Clear Cell*
;
Chemotherapy, Adjuvant
;
Cisplatin
;
Cytoplasm
;
Dysuria
;
Eosinophils
;
Female
;
Fluorouracil
;
Follow-Up Studies
;
Hematuria
;
Humans
;
Middle Aged
;
Neck
;
Neoplasm Metastasis
;
Pelvic Exenteration
;
Recurrence
;
Urethra
;
Urinary Bladder*
;
Urinary Diversion
7.Crossed Testicular Ectopia in a Patient with Bilateral Cryptorchism.
Jung Hyun KIM ; Chang Soo OH ; Joo Yeol CHEONG ; Gyu Gwang LEE ; Hee Jeong CHA ; Sang Hyun CHEON ; Ro Jung PARK ; Ki Yeul CHOI
Korean Journal of Urology 2003;44(11):1177-1179
Crossed testicular ectopia is an uncommon anatomical abnormality in which both gonads migrate toward the same hemiscrotum. We report a case of crossed testicular ectopia associated with bilateral cryptorchism. The crossed ectopic and intra-abdominal testis was fixed in it's own hemiscrotum by laparoscopic orchiopexy.
Cryptorchidism*
;
Gonads
;
Humans
;
Laparoscopy
;
Male
;
Orchiopexy
;
Testis
8.Blood parameter changes in Korean traditional calves and pigs after foot-and-mouth disease vaccination.
Chun Nam CHA ; Eun Kee PARK ; Chang Yeul YOO ; Suk KIM ; Young Won YUN ; Hu Jang LEE
Korean Journal of Veterinary Research 2017;57(1):43-45
This study investigated changes in certain blood parameters in calves and pigs after foot-and-mouth disease (FMD) vaccination. In this study, five calves and five pigs were selected from groups of 10 calves and pigs, respectively, and were vaccinated with an FMD vaccine. The remaining animals formed two non-treatment control groups. Blood samples were collected from all animals on the 1st, 3rd, 5th, and 7th days post-vaccination. In the FMD-vaccinated calves and pigs on day 7 post-vaccination, white blood cell counts, blood urea nitrogen levels, and alanine aminotransferase and aspartate aminotransferase activities were higher than those in the respective controls. The present data suggested that the certain hemato-biochemical parameters on cattle and pigs were meaningfully changed between before and after FMD vaccination.
Alanine Transaminase
;
Animals
;
Aspartate Aminotransferases
;
Blood Urea Nitrogen
;
Cattle
;
Foot-and-Mouth Disease*
;
Hematologic Tests
;
Leukocyte Count
;
Swine*
;
Vaccination*
9.A Phase II Study of Avelumab Monotherapy in Patients with Mismatch Repair–Deficient/Microsatellite Instability–High or POLE-Mutated Metastatic or Unresectable Colorectal Cancer
Jwa Hoon KIM ; Sun Young KIM ; Ji Yeon BAEK ; Yong Jun CHA ; Joong Bae AHN ; Han Sang KIM ; Keun-Wook LEE ; Ji-Won KIM ; Tae-You KIM ; Won Jin CHANG ; Joon Oh PARK ; Jihun KIM ; Jeong Eun KIM ; Yong Sang HONG ; Yeul Hong KIM ; Tae Won KIM
Cancer Research and Treatment 2020;52(4):1135-1144
Purpose:
We evaluated the efficacy and safety of avelumab, an anti-PD-L1 antibody, in patients with metastatic or unresectable colorectal cancer (mCRC) with mismatch repair deficiency (dMMR)/microsatellite instability-high (MSI-H) or POLE mutations.
Materials and Methods:
In this prospective, open-label, multicenter phase II study, 33 patients with mCRC harboring dMMR/MSI-H or POLE mutations after failure of ≥1st-line chemotherapy received avelumab 10 mg/kg every 2 weeks. dMMR/MSI-H was confirmed with immunohistochemical staining (IHC) by loss of expression of MMR proteins or polymerase chain reaction (PCR) for microsatellite sequences. POLE mutation was confirmed by next-generation sequencing (NGS). The primary endpoint was the objective response rate (ORR) by Response Evaluation Criteria in Solid Tumors ver. 1.1.
Results:
The median age was 60 years, and 78.8% were male. Thirty patients were dMMR/MSI-H and three had POLE mutations. The ORR was 24.2%, and all of the responders were dMMR/MSI-H. For 21 patients with MSI-H by PCR or NGS, the ORR was 28.6%. At a median follow-up duration of 16.3 months, median progression-free survival and overall survival were 3.9 and 13.2 months in all patients, and 8.1 months and not reached, respectively, in patients with MSI-H by PCR or NGS. Dose interruption and discontinuation due to treatment-related adverse events occurred in 4 and 2 patients, respectively, with no treatment-related deaths.
Conclusion
Avelumab displayed antitumor activity with manageable toxicity in patients with previously treated mCRC harboring dMMR/MSI-H. Diagnosis of dMMR/MSI-H with PCR or NGS could be complementary to IHC to select patients who would benefit from immunotherapy.