1.Successful replantation of an avulsed frontal scalp through microvascular anastomoses of only one artery and one vein: a case report
Dongjin KIM ; Somin OH ; Woo Shik JEONG
Archives of Craniofacial Surgery 2024;25(2):95-98
Scalp avulsion is a devastating injury. The best possible procedure is replantation. Several successful scalp replantations with anastomoses of several vessels in large defects have been reported. In this report, we present a case of replantation of a large scalp avulsion using revascularizing with only one artery and vein. Despite the initial signs of flap congestion, we could predict the survival of the replanted scalp and terminate the procedure after detecting good perfusion and washout with indocyanine green fluorescence imaging. The procedure was successful following the patient’s recovery of sensory and sweating functions without complications such as flap necrosis or infection. Several important factors for successful scalp replantation with positive esthetic and functional outcomes were considered.
2.A case of Intraligamentary Huge Leiomyoma.
Jeongyoon YI ; Minsoo KANG ; Sanghyuck LEE ; Eunhui OH ; Beom CHOI ; Yongduk SHIN ; Dongjin KIM
Korean Journal of Obstetrics and Gynecology 2001;44(12):2316-2319
Uterine leiomyomas are the most common benign uterine tumors. They are estimated to be present in at least 20% of all women of reproductive age and may be asymptomatic in 40-50% of women older than 40 years of age. They may be subserosal, intramural, or submucosal in location within the uterus or located in the cervix, in the broad ligament, or on a pedicle. But it seems to be rare to experience a intraligamentary huge leiomyoma in the broad ligament.Recently we have experienced a case of intraligamentary huge leiomyoma with its weight of 3146 gm in 45 year-old primiparous woman. We present this case with a brief review of the literature.
Broad Ligament
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Cervix Uteri
;
Female
;
Humans
;
Leiomyoma*
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Middle Aged
;
Uterus
3.The Influence of Low Calcium Concentration Hemodialysis on Cardiovascular Response.
Chahyun KIM ; Dongjin OH ; Soojeong YOO ; Taewoo LEE ; Jaeyoung CHOI ; Kwangje LEE ; Sangwook KIM ; Sukhee YOO ; Eungtaek KANG
Korean Journal of Nephrology 2002;21(5):780-786
OBJECTIVE: Arterial compliance (AC) reflects the buffering function of the vessel. Low AC caused by arterial stiffness increases pulse pressure amplitude. Therefore, Low AC must be correlated with high cardiovascular mobidity and mortality in HD patients. Dialysate calcium concentration is potentially a main determinant of serum ionized calcium level and the vasoconstriction is associated with high calcium concentration. Therefore, We conducted a study for evaluation of the interdialytic effects of treatment with a low dialysate calcium (LdCa) concentration and high dialysate calcium (HdCa) concentration on the changes of AC, BP, biochemical parameters. METHODS: Eight HD patient (mean age 45.5, sex ratio 1 : 1) were studied. The mean HD period was 3 years. Arterial Compliance, stroke Volume, SBP, DBP, PP, MAP, Ionized Ca, T-CO2, P and CaxP product were compared after treatment with a LdCa and HdCa concentration for each 10 sessions. RESULTS: AC were 0.143+/-0.076 mm2/kPa in baseline, 0.166+/-0.097 mm2/kPa in LdCa (1.25 mmol/L) dialysate, 0.142+/-0.082 mm2/kPa in HdCa (1.75 mmol/L) dialysate. SBP, DBP, MAP and PP were 157.75+/-15.97, 94.25+/-9.48, 114.12+/-10.56, 63.50+/-10.87 mmHg in baseline and 135.25+/-13.00, 78.75+/-11.24, 98.37+/-15.14, 56.50+/-5.95 mmHg in LdCa dialysate and 160.50+/-15.36, 94.05+/-10.34, 115.75+/-9.64, 62.00+/-15.71 mmHg in HdCa dialysate. Ionized Ca were 4.66+/-0.40 mg/dL in baseline, 4.45+/-0.28 mg/dL in LdCa dialysate and 4.65+/-0.43 mg/dL in HdCa dialysate. However, there were no changes of other biochemical parameters. CONCLUSION: Treatment with LdCa dialysis, by minimizing the risk for LdCa-induced hypocalcemia, may have a beneficial role in the prevention of the ongoing reduction of arterial compliance in HD patients and thus improve cardiovascular prognosis.
Blood Pressure
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Calcium*
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Compliance
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Dialysis
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Humans
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Hypocalcemia
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Mortality
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Prognosis
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Renal Dialysis*
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Sex Ratio
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Stroke Volume
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Vascular Stiffness
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Vasoconstriction
4.Developmental competence of chimeric porcine embryos through the aggregation of parthenogenetic embryos and somatic cell nuclear transfer embryos
Joohyeong LEE ; Lian CAI ; Mirae KIM ; Hyerin CHOI ; Dongjin OH ; Ali JAWAD ; Eunsong LEE ; Sang-Hwan HYUN
Korean Journal of Veterinary Research 2023;63(1):e3-
The efficiency of somatic cell nuclear transfer (NT) in pigs is low and requires enhancement. We identified the most efficient method for zona pellucida (ZP) removal and blastomere aggregation in pigs and investigated whether the aggregation of NT and parthenogenetic activation (PA) of blastomeres could reduce embryonic apoptosis and improve the quality of NT-derived embryos by investigating. Embryonic developmental competence after ZP removal using acid Tyrode's solution or protease (pronase E). The embryonic developmental potential of NT-derived blastomeres was also investigated using well-of-the-well or phytohemagglutinin-L. We analyzed apoptosis in aggregate-derived blastocysts. The aggregation rate of protease-treated embryos was lower than that of Tyrode’s solution-treated embryos (69.2% vs. 88.3%). No significant difference was observed between phytohemagglutinin-L and well-of-the-well (35.7%–38.5%). However, 2P1N showed a higher number of blastocysts compared to 3N (73.8% vs. 24.3%) and an increased blastocyst diameter compared to the control and 1P2N (274 μm vs. 230–234 μm). In blastomeres aggregated using phytohemagglutinin-L, the apoptotic cell ratio was significantly higher in 1P2N and 3N than in 3P (5.91%–6.46% vs. 2.94%, respectively). Our results indicate that aggregation of one NT embryo with two PA embryos improved the rate of blastocysts with increased blastocyst diameter.
5.Comparison of Safety and Efficiency of Hemodialysis Using Heparin-bound Hemophan with those of Saline Flushing Hemodialysis and Hemodialysis Using Low Dose Heparin in Patients at Risk of Bleeding.
Hyun Jin KIM ; Young Hwan LIM ; Min Ok KIM ; Hyun Jeong BEAK ; Yeon Sil DO ; Eun Hee JANG ; So Yeon CHOI ; Ho Myoung YEO ; Jung Ah KIM ; Beom KIM ; Bang Hoon LEE ; Woo Heon KANG ; Dongjin OH ; Wooseong HUH ; Dae Joong KIM ; Ha Young OH ; Yoon Goo KIM
Korean Journal of Nephrology 2005;24(2):246-254
OBJECTIVE: Although hemodialysis using heparin bound Hemophan (HBH-HD) has been reported to be a possible modality in patients at risk of bleeding, the efficiency and safety of HBH-HD is not certain. Therefore, we prospectively compared the safety and efficiency of HBH-HD with those of saline flushing HD (SF-HD) and HD using low dose heparin (LDH-HD) in 13 HD patients at risk of bleeding in a cross-over design. METHODS: The safety and efficiency were evaluated by measuring activated partial prothrombin time (aPTT) before and during HD, hemostasis time after needle removal, total blood compartment volume (TBCV) loss of dialyzer, urea clearance (K) and Kt/V. RESULTS: There was no difference in compression time needed to achieve hemostasis at puncture site after needle removal between HBH-HD, SF-HD and LDH-HD. During HBH-HD, there was a slight increase in aPTT at 15 min (50.6+/-4.5 sec), compared to predialysis levels (40.9+/-4.7 sec). In this cross- over study, aPTT during dialysis session was markedly higher in LDH-HD than those in HBH-HD or SF-HD (p<0.05). The loss of TBCV of the dialyzer was greater in SF-HD than HBH-HD or LDH-HD (17.4+/-1.9% vs. 12.4+/-1.4% vs. 10.1+/-1.8%). However, there was no difference in K (212.0+/-30.7 vs. 217.2+/-36.9 vs. 221.6+/- 29.5 mL/min) and Kt/V (1.22+/-0.12 vs. 1.24+/-0.16 vs. 1.26+/-0.18). CONCLUSION: We concluded that the safety and efficiency of HBH-HD are not different compared to SF-HD or LDH-HD and HBH-HD could an alternative hemodialysis method in patients at risk of bleeding.
Anticoagulants
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Cross-Over Studies
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Dialysis
;
Flushing*
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Hemorrhage*
;
Hemostasis
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Heparin*
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Humans
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Needles
;
Prospective Studies
;
Prothrombin Time
;
Punctures
;
Renal Dialysis*
;
Urea
6.Blood-Brain Barrier Disruption in Mild Traumatic Brain Injury Patients with Post-Concussion Syndrome: Evaluation with Region-Based Quantification of Dynamic Contrast-Enhanced MR Imaging Parameters Using Automatic Whole-Brain Segmentation
Heera YOEN ; Roh-Eul YOO ; Seung Hong CHOI ; Eunkyung KIM ; Byung-Mo OH ; Dongjin YANG ; Inpyeong HWANG ; Koung Mi KANG ; Tae Jin YUN ; Ji-hoon KIM ; Chul-Ho SOHN
Korean Journal of Radiology 2021;22(1):118-130
Objective:
This study aimed to investigate the blood-brain barrier (BBB) disruption in mild traumatic brain injury (mTBI) patients with post-concussion syndrome (PCS) using dynamic contrast-enhanced (DCE) magnetic resonance (MR) imaging and automatic whole brain segmentation.
Materials and Methods:
Forty-two consecutive mTBI patients with PCS who had undergone post-traumatic MR imaging, including DCE MR imaging, between October 2016 and April 2018, and 29 controls with DCE MR imaging were included in this retrospective study. After performing three-dimensional T1-based brain segmentation with FreeSurfer software (Laboratory for Computational Neuroimaging), the mean Ktrans and vp from DCE MR imaging (derived using the Patlak model and extended Tofts and Kermode model) were analyzed in the bilateral cerebral/cerebellar cortex, bilateral cerebral/cerebellar white matter (WM), and brainstem. Ktrans values of the mTBI patients and controls were calculated using both models to identify the model that better reflected the increased permeability owing to mTBI (tendency toward higher Ktrans values in mTBI patients than in controls). The Mann-Whitney U test and Spearman rank correlation test were performed to compare the mean Ktrans and vp between the two groups and correlate Ktrans and vp with neuropsychological tests for mTBI patients.
Results:
Increased permeability owing to mTBI was observed in the Patlak model but not in the extended Tofts and Kermode model. In the Patlak model, the mean Ktrans in the bilateral cerebral cortex was significantly higher in mTBI patients than in controls (p = 0.042). The mean vp values in the bilateral cerebellar WM and brainstem were significantly lower in mTBI patients than in controls (p = 0.009 and p = 0.011, respectively). The mean Ktrans of the bilateral cerebral cortex was significantly higher in patients with atypical performance in the auditory continuous performance test (commission errors) than in average or good performers (p = 0.041).
Conclusion
BBB disruption, as reflected by the increased Ktrans and decreased vp values from the Patlak model, was observed throughout the bilateral cerebral cortex, bilateral cerebellar WM, and brainstem in mTBI patients with PCS.
7.6-Shogaol, an Active Ingredient of Ginger, Improves Intestinal and Brain Abnormalities in Proteus Mirabilis-Induced Parkinson’s Disease Mouse Model
Eugene HUH ; Jin Gyu CHOI ; Yujin CHOI ; In Gyoung JU ; Dongjin NOH ; Dong-yun SHIN ; Dong Hyun KIM ; Hi-Joon PARK ; Myung Sook OH
Biomolecules & Therapeutics 2023;31(4):417-424
Parkinson’s disease (PD) which has various pathological mechanisms, recently, it is attracting attention to the mechanism via microbiome-gut-brain axis. 6-Shogaol, a representative compound of ginger, have been known for improving PD phenotypes by reducing neuroinflammatory responses. In the present study, we investigated whether 6-shogaol and ginger attenuate degeneration induced by Proteus Mirabilis(P. mirabilis) on the intestine and brain, simultaneously. C57BL/6J mice received P. mirabilis for 5 days. Ginger (300 mg/kg) and 6-shogaol (10 mg/kg) were treated by gavage feeding for 22 days including the period of P. mirabilis treatment. Results showed that 6-shogaol and ginger improved motor dysfunction and dopaminergic neuronal death induced by P. mirabilis treatment. In addition, they suppressed P. mirabilis-induced intestinal barrier disruption, pro-inflammatory signals such as toll-like receptor and TNF-α, and intestinal α-synuclein aggregation. Moreover, ginger and 6-shogaol significantly inhibited neuroinflammation and α-synuclein in the brain. Taken together, 6-shogaol and ginger have the potential to ameliorate PD-like motor behavior and degeneration of dopaminergic neurons induced by P. mirabilis in mice. Here, these findings are meaningful in that they provide the first experimental evidence that 6-shogaol might attenuate PD via regulating gut-brain axis.
8.Antioxidant effect of ergothioneine on in vitro maturation of porcine oocytes
Ji-Young JEONG ; Lian CAI ; Mirae KIM ; Hyerin CHOI ; Dongjin OH ; Ali JAWAD ; Sohee KIM ; Haomiao ZHENG ; Eunsong LEE ; Joohyeong LEE ; Sang-Hwan HYUN
Journal of Veterinary Science 2023;24(2):e24-
Background:
Ergothioneine (EGT) is a natural amino acid derivative in various animal organs and is a bioactive compound recognized as a food and medicine.
Objectives:
This study examined the effects of EGT supplementation during the in vitro maturation (IVM) period on porcine oocyte maturation and subsequent embryonic development competence after in vitro fertilization (IVF).
Methods:
Each EGT concentration (0, 10, 50, and 100 µM) was supplemented in the maturation medium during IVM. After IVM, nuclear maturation, intracellular glutathione (GSH), and reactive oxygen species (ROS) levels of oocytes were investigated. In addition, the genes related to cumulus function and antioxidant pathways in oocytes or cumulus cells were investigated. Finally, this study examined whether EGT could affect embryonic development after IVF.
Results:
After IVM, the EGT supplementation group showed significantly higher intracellular GSH levels and significantly lower intracellular ROS levels than the control group. Moreover, the expression levels of hyaluronan synthase 2 and Connexin 43 were significantly higher in the 10 µM EGT group than in the control group. The expression levels of nuclear factor erythroid 2-related factor 2 (Nrf2) and NAD(P)H quinone dehydrogenase 1 (NQO1) were significantly higher in the oocytes of the 10 µM EGT group than in the control group. In the assessment of subsequent embryonic development after IVF, the 10 µM EGT treatment group improved the cleavage and blastocyst rate significantly than the control group.
Conclusions
Supplementation of EGT improved oocyte maturation and embryonic development by reducing oxidative stress in IVM oocytes.