1.Immediate Breast Reconstruction after Skin-Sparing Mastectomy.
June Kyu KIM ; Sanghoon HAN ; Hangu KIM ; Sei Hyun AHN
Journal of the Korean Society of Aesthetic Plastic Surgery 2001;7(1):33-39
No abstract available.
Breast*
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Female
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Mammaplasty*
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Mastectomy*
2.A Program for Efficient Phasing of Three-Generation Trio SNP Genotype Data.
Genomics & Informatics 2011;9(3):138-141
Here, we report a computer program written in Python, which phases SNP genotypes and infers inherited deletions based on the pattern of Mendelian inheritance within a trio pedigree. When tiered trio genotypes that encompass three generations are available, it narrows a recombination event down to a region between two consecutive heterozygous markers. In addition, the phase information that is inferred from the upper trio that is formed by one of the parents and grandparents can be propagated to phase the genotypes of the lower trio that is formed by the parents and an offspring.
Boidae
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Family Characteristics
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Genotype
;
Humans
;
Parents
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Pedigree
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Recombination, Genetic
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Software
;
Wills
3.Effective ketogenic diet in CACNA1A-related ‘epilepsy of infancy with migrating focal seizures’
Hyejin NA ; Sanghoon LEE ; Young Ok KIM
Journal of Genetic Medicine 2021;18(2):137-141
Genetic causes of developmental and epileptic encephalopathy (DEE) have been rapidly uncovered from mid-2010s. The mutations of gene enconding calcium channel, voltage-dependent, P/Q type, alpha 1A subunit (CACNA1A) are recently detected in DEE, which gene is already known well in familial hemiplegic migrine type 1 or episodic ataxia type 2. Ketogenic diet therapy (KDT) is effective in some DEE, which data is short in CACNA1A encephalopathy. A 3-month-old male with global developmental delay and multidrug-resistant focal seizures was diagnosed as epilepsy of infancy with migrating focal seizures (EIMFS). Brain magnetic resonance imaging and metabolic screening were all normal. Whole exome sequencing revealed two variants of CACNA1A : c.899A>C, and c.2808del that is from his mother. His seizures disappeared within 3 days whenever on KDT, which recurred without it. To our knowledge, this rare case of EIMFS with novel mutations of CACNA1A, is the first report in CACNA1A encephalopathy becoming seizure-free on KDT.
4.Efficacy of submucosal injection of hyaluronidase after mandibular third molar surgery: a randomized controlled trial
Sanghoon LEE ; Hyounmin KIM ; Woong NAM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2022;48(6):363-370
Objectives:
This study aimed to investigate the efficacy of postoperative submucosal injection of hyaluronidase (HUD) for reducing sequelae andquality of life (QOL) after mandibular third molar (M3M) surgery.
Materials and Methods:
Participants with bilateral impacted M3M underwent surgical extraction with a split-mouth randomized controlled studydesign. M3M were removed by the same surgeon in 2 sessions, one a control and the other experimental. Submucosal injection of HUD was performedin the experimental session and submucosal injection of saline in the control session. Mouth opening, facial swelling, and pain intensity were measured before surgery, and then 2 and 7 days after surgery. The QOL of participants following surgery was evaluated by means of a patient-centered outcome questionnaire (PCOQ).
Results:
A total of 36 patients was included in the final data analysis. There was a significant reduction in the maximal mouth opening and postoperative pain in the experimental side at the 2 and 7 days after surgery (P<0.05), and a remarkable difference in facial swelling was reported on the experimental side 7 days after surgery (P<0.05). The PCOQ demonstrated that participants reported less pain and swelling on the experimental side.
Conclusion
The present study provides clinical evidence that submucosal administration of HUD immediately after M3M surgery reduced postop-erative discomfort and improved patients’ QOL.
5.Fertility preservation for patients with cancer
Journal of the Korean Medical Association 2022;65(6):329-337
The survival rate of cancer patients is increasing owing to the early diagnosis and treatment methods. Radiotherapy and chemotherapy may cause serious complications, such as ovarian failure and infertility. In particular, preservation of fertility in women of reproductive age with cancer could improve their quality of life as well as reduce social and psychological pain.Current Concepts: Embryo or oocyte cryopreservation is a method of fertility preservation; however, it cannot be utilized by all women with cancer because of the complications of the condition and treatment method. Ovarian tissue cryopreservation and transplantation enables fertility preservation in those needing immediate cancer treatment, such as chemotherapy or radiotherapy, or those unqualified for ovarian stimulation. A recent review reported that frozen-thawed ovarian transplantation led to approximately 130 live births with a conception rate of approximately 30%. Endocrine function recovery occurred in 92.9% of the patients between 3.5 and 6.5 months after transplantation.Discussion and Conclusion: In this study, we introduced various methods and strategies for improving the outcomes of ovarian tissue cryopreservation and transplantation. These results could serve as a reference for patients and clinicians to choose the best options for fertility preservation based on the patient’s current situation and condition.
6.Changes in frequency of benign convulsions with mild gastroenteritis and their viral causes before and during the COVID-19 pandemic: a single-center study
Hyejin NA ; Sanghoon LEE ; Seo Hee KIM ; Young Ok KIM
Clinical and Experimental Pediatrics 2024;67(4):213-220
Background:
Benign convulsions with mild gastroenteritis (CwG) are prevalent in young children during the winter. Early in the coronavirus disease 2019 (COVID-19) pandemic, viral gastroenteritis occurrence decreased and seasonal variation was lost, which can change CwG.Purpose: Here we investigated changes in frequency, seasonal variation, and causative viruses of CwG during the COVID-19 pandemic.
Methods:
We screened 1134 patients (3–36 months) with “other and unspecified convulsions” treated at Chonnam National University Hospital between March 2017 and February 2023; of them, we enrolled 41 (3.6%) with CwG. We compared their medical records from period I (March 2017 to February 2020) to those from period II (March 2020 to February 2023). Publicly available viral gastroenteritis surveillance data from the Korea Disease Control and Prevention Agency (KDCA) were reviewed as reference.
Results:
Of the 41 patients with CwG, 18 (2.9% of 613) were affected in period I versus 23 (4.4% of 512) in period II (P=0.184). In period I, CwG mainly occurred in winter and spring (55.6% and 22.2%, respectively). In period II, there were fewer CwG cases (39.1%) in winter and more cases in summer and autumn (26.1% and 17.4%, respectively): the cases of norovirus genogroup II (GII)-associated CwG increased significantly in the summer (38.5% vs. 0%, P= 0.046). Norovirus GII was the most common virus (56.1% of isolates). Enteric adenovirus was the second most common (19.5%), with one case in period I and 7 cases in period II (P=0.059). The clinical characteristics of enteric adenovirus-associated CwG were similar to those of norovirus. Seasonal changes in and viral causes of CwG were consistent with those observed in the KDCA stool surveillance data.
Conclusion
During the COVID-19 pandemic, CwG frequency did not change, seasonal variation was unapparent, and enteric adenovirus-associated CwG frequency increased.
7.Changes in frequency of benign convulsions with mild gastroenteritis and their viral causes before and during the COVID-19 pandemic: a single-center study
Hyejin NA ; Sanghoon LEE ; Seo Hee KIM ; Young Ok KIM
Clinical and Experimental Pediatrics 2024;67(4):213-220
Background:
Benign convulsions with mild gastroenteritis (CwG) are prevalent in young children during the winter. Early in the coronavirus disease 2019 (COVID-19) pandemic, viral gastroenteritis occurrence decreased and seasonal variation was lost, which can change CwG.Purpose: Here we investigated changes in frequency, seasonal variation, and causative viruses of CwG during the COVID-19 pandemic.
Methods:
We screened 1134 patients (3–36 months) with “other and unspecified convulsions” treated at Chonnam National University Hospital between March 2017 and February 2023; of them, we enrolled 41 (3.6%) with CwG. We compared their medical records from period I (March 2017 to February 2020) to those from period II (March 2020 to February 2023). Publicly available viral gastroenteritis surveillance data from the Korea Disease Control and Prevention Agency (KDCA) were reviewed as reference.
Results:
Of the 41 patients with CwG, 18 (2.9% of 613) were affected in period I versus 23 (4.4% of 512) in period II (P=0.184). In period I, CwG mainly occurred in winter and spring (55.6% and 22.2%, respectively). In period II, there were fewer CwG cases (39.1%) in winter and more cases in summer and autumn (26.1% and 17.4%, respectively): the cases of norovirus genogroup II (GII)-associated CwG increased significantly in the summer (38.5% vs. 0%, P= 0.046). Norovirus GII was the most common virus (56.1% of isolates). Enteric adenovirus was the second most common (19.5%), with one case in period I and 7 cases in period II (P=0.059). The clinical characteristics of enteric adenovirus-associated CwG were similar to those of norovirus. Seasonal changes in and viral causes of CwG were consistent with those observed in the KDCA stool surveillance data.
Conclusion
During the COVID-19 pandemic, CwG frequency did not change, seasonal variation was unapparent, and enteric adenovirus-associated CwG frequency increased.
8.Changes in frequency of benign convulsions with mild gastroenteritis and their viral causes before and during the COVID-19 pandemic: a single-center study
Hyejin NA ; Sanghoon LEE ; Seo Hee KIM ; Young Ok KIM
Clinical and Experimental Pediatrics 2024;67(4):213-220
Background:
Benign convulsions with mild gastroenteritis (CwG) are prevalent in young children during the winter. Early in the coronavirus disease 2019 (COVID-19) pandemic, viral gastroenteritis occurrence decreased and seasonal variation was lost, which can change CwG.Purpose: Here we investigated changes in frequency, seasonal variation, and causative viruses of CwG during the COVID-19 pandemic.
Methods:
We screened 1134 patients (3–36 months) with “other and unspecified convulsions” treated at Chonnam National University Hospital between March 2017 and February 2023; of them, we enrolled 41 (3.6%) with CwG. We compared their medical records from period I (March 2017 to February 2020) to those from period II (March 2020 to February 2023). Publicly available viral gastroenteritis surveillance data from the Korea Disease Control and Prevention Agency (KDCA) were reviewed as reference.
Results:
Of the 41 patients with CwG, 18 (2.9% of 613) were affected in period I versus 23 (4.4% of 512) in period II (P=0.184). In period I, CwG mainly occurred in winter and spring (55.6% and 22.2%, respectively). In period II, there were fewer CwG cases (39.1%) in winter and more cases in summer and autumn (26.1% and 17.4%, respectively): the cases of norovirus genogroup II (GII)-associated CwG increased significantly in the summer (38.5% vs. 0%, P= 0.046). Norovirus GII was the most common virus (56.1% of isolates). Enteric adenovirus was the second most common (19.5%), with one case in period I and 7 cases in period II (P=0.059). The clinical characteristics of enteric adenovirus-associated CwG were similar to those of norovirus. Seasonal changes in and viral causes of CwG were consistent with those observed in the KDCA stool surveillance data.
Conclusion
During the COVID-19 pandemic, CwG frequency did not change, seasonal variation was unapparent, and enteric adenovirus-associated CwG frequency increased.
9.Changes in frequency of benign convulsions with mild gastroenteritis and their viral causes before and during the COVID-19 pandemic: a single-center study
Hyejin NA ; Sanghoon LEE ; Seo Hee KIM ; Young Ok KIM
Clinical and Experimental Pediatrics 2024;67(4):213-220
Background:
Benign convulsions with mild gastroenteritis (CwG) are prevalent in young children during the winter. Early in the coronavirus disease 2019 (COVID-19) pandemic, viral gastroenteritis occurrence decreased and seasonal variation was lost, which can change CwG.Purpose: Here we investigated changes in frequency, seasonal variation, and causative viruses of CwG during the COVID-19 pandemic.
Methods:
We screened 1134 patients (3–36 months) with “other and unspecified convulsions” treated at Chonnam National University Hospital between March 2017 and February 2023; of them, we enrolled 41 (3.6%) with CwG. We compared their medical records from period I (March 2017 to February 2020) to those from period II (March 2020 to February 2023). Publicly available viral gastroenteritis surveillance data from the Korea Disease Control and Prevention Agency (KDCA) were reviewed as reference.
Results:
Of the 41 patients with CwG, 18 (2.9% of 613) were affected in period I versus 23 (4.4% of 512) in period II (P=0.184). In period I, CwG mainly occurred in winter and spring (55.6% and 22.2%, respectively). In period II, there were fewer CwG cases (39.1%) in winter and more cases in summer and autumn (26.1% and 17.4%, respectively): the cases of norovirus genogroup II (GII)-associated CwG increased significantly in the summer (38.5% vs. 0%, P= 0.046). Norovirus GII was the most common virus (56.1% of isolates). Enteric adenovirus was the second most common (19.5%), with one case in period I and 7 cases in period II (P=0.059). The clinical characteristics of enteric adenovirus-associated CwG were similar to those of norovirus. Seasonal changes in and viral causes of CwG were consistent with those observed in the KDCA stool surveillance data.
Conclusion
During the COVID-19 pandemic, CwG frequency did not change, seasonal variation was unapparent, and enteric adenovirus-associated CwG frequency increased.
10.Application of Iron Oxide as a pH-dependent Indicator for Improving the Nutritional Quality.
Xiangpeng MENG ; Jina RYU ; Bumsik KIM ; Sanghoon KO
Clinical Nutrition Research 2016;5(3):172-179
Acid food indicators can be used as pH indicators for evaluating the quality and freshness of fermented products during the full course of distribution. Iron oxide particles are hardly suspended in water, but partially or completely agglomerated. The agglomeration degree of the iron oxide particles depends on the pH. The pH-dependent particle agglomeration or dispersion can be useful for monitoring the acidity of food. The zeta potential of iron oxide showed a decreasing trend as the pH increased from 2 to 8, while the point of zero charge (PZC) was observed around at pH 6.0-7.0. These results suggested that the size of the iron oxide particles was affected by the change in pH levels. As a result, the particle sizes of iron oxide were smaller at lower pH than at neutral pH. In addition, agglomeration of the iron oxide particles increased as the pH increased from 2 to 7. In the time-dependent aggregation test, the average particle size was 730.4 nm and 1,340.3 nm at pH 2 and 7, respectively. These properties of iron oxide particles can be used to develop an ideal acid indicator for food pH and to monitor food quality, besides a colorant or nutrient for nutrition enhancement and sensory promotion in food industry.
Food Industry
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Food Quality
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Hydrogen-Ion Concentration
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Iron*
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Nutritive Value*
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Particle Size
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Water