1.The clinical study of in vitro fertilization and embryo transfer.
Joung Jung JEON ; Young Soo SON ; Bok Hee WOO
Korean Journal of Obstetrics and Gynecology 1992;35(2):229-239
No abstract available.
Embryo Transfer*
;
Embryonic Structures*
;
Fertilization in Vitro*
2.Pregnancy by peritoneal oocyte and sperm transfer(POST).
Bock Hee WOO ; Young Soo SON ; Jung Jeong JEON
Korean Journal of Obstetrics and Gynecology 1991;34(8):1134-1138
No abstract available.
Oocytes*
;
Pregnancy*
;
Spermatozoa*
3.A Study about Clinical Effect and Safety of Risperidone in Schizophrenic Patients: FuturCare 99 Project.
Korean Journal of Psychopharmacology 2001;12(1):71-81
OBJECTIVE: This study was performed to investigate the clinical effect and safety of risperidone during the treatment of schizophrenia for 12 weeks. METHODS: In the FuturCare 99 Project which had been organized by JanssenKorea for the purpose of improving the quality of management of patients treated with risperidone, 714 schizophrenic patients from 32 institutes including general hospitals and private clinics were recruited. The clinical effects and extrapyramidal symptoms at 8-week and 12-week during the treatment with risperidone were evaluated using CGI, Modified Psychosis Symptom Evaluation and Extrapyramidal Symptom Legend. The associations between clinical responses and the sociodemographic and clinical informations were explored. RESULTS: Most of symptoms assessed by Modified Psychosis Symptom Evaluation and CGI were significantly improved at 8-week and 12-week trial of risperidone. And the extrapyramidal symptoms were on the decrease during the treatment with risperidone. Moreover, there was no difference in the dosage of risperidone between at 8 weeks (4.3+/-2.1 mg) and at 12 weeks (4.4+/-2.3 mg). When the patients were divided into 3 groups by the clinical responses of CGI at 12 week of risperidone treatment, clincal characteristics such as age, duration of illness, auditory hallucination, erotic delusion, lack of motivation, disorientation, and memory problem were significantly different among groups. CONCLUSION: his multicenter open study shows that risperidone has good clinical effect and safety in the treatment of schizophrenia with the daily average doses of 4.3-4.4 mg. The multicenter open study about the long-term treatment of risperidone in schizophrenia would be needed.
Academies and Institutes
;
Delusions
;
Hallucinations
;
Hospitals, General
;
Humans
;
Memory
;
Motivation
;
Psychotic Disorders
;
Risperidone*
;
Schizophrenia
;
Symptom Assessment
4.Broken Mirror or Unbroken Mirror? ; An Investigation for Mirror Neuron Dysfunction of the Autism Spectrum Disorder.
Journal of the Korean Academy of Child and Adolescent Psychiatry 2013;24(3):109-123
The discovery of the mirror neuron system (MNS) is one of the most important neuroscientific achievements in the 20th century. Some researchers had reported that MNS dysfunction was discovered in autism spectrum disorders (ASD). Finally, the 'broken mirror' theory of ASD was announced in the mid 2000's. According to this theory, ASD cannot simulate the mind and behavior of others due to MNS dysfunction; therefore, they cannot imitate the behaviors and empathized with the mind of others. However, ASD does not always show imitation problems. The researchers who have criticized the 'broken mirror' theory proposed the 'social top-down response modulation (STORM)' theory. On STORM theory, the medial prefrontal cortex or temporoparietal junction, brain areas related with mentalising, might modulate MNS according to social context. We compared the strengths and weaknesses of each theory.
Autistic Disorder*
;
Brain
;
Child
;
Autism Spectrum Disorder*
;
Mirror Neurons*
;
Prefrontal Cortex
5.Response: Insufficient Experience in Thyroid Fine-Needle Aspiration Leads to Misdiagnosis of Thyroid Cancer (Endocrinol Metab 2014;29:293-9, Jung Il Son et al.).
Endocrinology and Metabolism 2014;29(4):592-593
No abstract available.
Biopsy, Fine-Needle*
;
Diagnostic Errors*
;
Thyroid Gland*
;
Thyroid Neoplasms*
6.A clinical study of congenital hypertropic pyloric stenosis.
Eun Chin MUN ; Hae Jin LEE ; Son Sang SEO ; Jung Woo YANG
Journal of the Korean Pediatric Society 1991;34(5):637-644
No abstract available.
Pyloric Stenosis*
7.The Effect of Pentoxifylline on In Vitro Fertilization and Development of Mouse Normal Sperm.
HYang Mee KIM ; Young Soo SON ; Han Ki YOO ; Bock Hi WOO ; Jung Ja AHN
Korean Journal of Obstetrics and Gynecology 1997;40(1):37-48
OBJECT: This study was carried out to investigate the effect of pentoxifylline on in vitro fertillization and developmen of preimplantation stage of mouse embryos. MATERIAL AND METHODS:F1 hybrid mice was superovulated with PMSG/hCG and mouse oocytes were recruited. After the normal sperms were incubated with PTX before in vitro fertilization, it was observed whether the fertilization and embryo development was affected or not by the sperm preparation(washing, dilution and no washing or no dilution). And after 1-cell and 2-cell stage of mouse embryos were incubated with PTX, the development to hatching blastocyst was also observed. RESULTS: When in vitro fertilization was revealed by using the washed normal sperms after 0, 3.6 and 7.2 mM PTX incubation, the fertilization rates were 92.5%, 48.8%, 36.8%, respectively. So 3.6 and 7.2 mM groups presented significantly low fertilizatin rate, but the development rates were 93.9%, 85.0%, 95.2%, respectively. Therefore, there were no significant difference between each group. When in vitro fertilization was revealed by using the diluted normal sperms after 0, 3.6, and 7.2 mM PTX incubation, the fertilization rates were 58.6%, 5.4%, 9.4%, respectively. So 3.6 and 7.2 mM groups presented significantly low fertilization rate. The developmental rates were 88.2%, 100%, 100%. And there were no significant difference between each group. When in vitro fertilization was revealed by using the not washed and not diluted normal sperms after 0, 3.6 and 7.2 mM PTX incubation, the fertilizatin rates were 61.2%, 5.7%, 3.8%, respectively. 3.6 and 7.2 mM group presented significantly low fertilization rate. The development rates were 73.3%, 0%, 0%, respectively. So 3.6, 7.2 mM group presented significantly low developmental rate. After 1-cell stage of mouse embryos were incubated in 0, 5, 10, 50 nM of PTX, the development rates were not significantly different among them. After 2-cell stage of mouse embryos were incubated in 0, 5, 10, 50 nM of PTX, the development rates were not significantly different among them. CONCLUSION: In conclusion, when PTX is used in in vitro fertilization program with normal sperms, it may affect the fertilization and embryo development in high concentration. And if PTX concentration is very low, the developmental rate would not be affected. So PTX must not be used to normal sperms and where use of PTX is indicated, it is recommended that remainder PTX must be removed as completely as possible.
Animals
;
Blastocyst
;
Embryonic Development
;
Embryonic Structures
;
Female
;
Fertilization
;
Fertilization in Vitro*
;
Mice*
;
Oocytes
;
Pentoxifylline*
;
Pregnancy
;
Spermatozoa*
8.The Facts That We Have Been Mistaken About Our Minds, Language, and Octopuses; “Other Minds: The Octopus, The Sea, and The Deep Origins of Consciousness”
Journal of the Korean Academy of Child and Adolescent Psychiatry 2021;32(4):170-172
To date, we have made inferences on the behavior and mind of humans and animals from the perspective of humans, or for the sake of familiarity, vertebrates. The book, “Other Minds; The Octopus, The Sea, and The Deep Origins of Consciousness” by Peter Godfrey-Smith makes us realize how erroneous preconceived notions could be, and presents a novel perspective on the results of evolution. Throughout this book, readers will learn about the characteristics of the nervous system, behavior, and habits of cephalopods, which include octopuses. Through this book, readers will gain a new perspective on the embodiment, minds, nervous systems, consciousness, and sociality of humans and animals. Furthermore, the book will provide the imaginary experience of swimming in “Octopolis” inside the ocean with the author.
9.Neovascular Glaucoma after Diabetic Vitrectomy: Incidence and Risk Factors
Hyeon Woo SON ; Jung Min PARK ; Myeong In YEOM
Journal of the Korean Ophthalmological Society 2021;62(7):963-968
Purpose:
The prevalence and risk factors of neovascular glaucoma (NVG) after diabetic vitrectomy were evaluated.
Methods:
This retrospective study included 171 eyes of 141 patients who underwent diabetic vitrectomy in-hospital between March 2013 and July 2019 and were followed for >12 months postoperatively. Regardless of the presence or absence of neovascularization in the anterior segment, all patients received injections of intravitreal bevacizumab during vitrectomy. Patients with preoperative neovascularization in iris (NVI) or angle (NVA) received both intracameral and intravitreal bevacizumab injections. Data were collected regarding baseline demographics, preoperative best-corrected visual acuity, intraocular pressure, hypertension, NVG in the fellow eye, panretinal photocoagulation history, iris and angle neovascularization, and postoperative findings (e.g., rebleeding and residual retinal detachment).
Results:
In total, 141 patients and 171 eyes were included in the study, and the incidence of postoperative NVG was 5.85% (10 patients). Five patients (27.78%) with preoperative NVI or NVA developed postoperative NVG. Significant risk factors for postoperative NVG were preoperative NVA or NVI (odds ratio [OR] = 16.428, p = 0.003), shorter diabetic duration (OR = 0.853, p = 0.033), and the absence of preoperative panretinal photocoagulation (OR = 0.006, p = 0.035).
Conclusions
There is a high possibility of postoperative NVG in patients with preoperative NVI or NVA, a short duration of diabetes, and no preoperative panretinal photocoagulation. In such patients, close monitoring is required after diabetic vitrectomy.
10.Effects of Axial Length and Anterior Chamber Depth on Intrascleral Fixation Using a Fibrin Adhesive
Journal of the Korean Ophthalmological Society 2021;62(5):656-664
Purpose:
The purpose of this study was to evaluate the effect of axial length and anterior chamber depth in vitrectomy and intraocular lens intrascleral fixation with a fibrin adhesive.
Methods:
The study retrospectively reviewed 61 eyes of 61 patients, who were followed up for over 6 months after surgery. The patients were divided into three groups according to their axial length: group 1, < 22 mm; group 2, 22 to < 25 mm; and group 3, > 25 mm. The patients were further divided into three sub-groups according to their anterior chamber depth: group A, < 3.0 mm; group B, 3.0 mm to < 3.6 mm; and group C, > 3.6 mm. We measured and analyzed the best-corrected visual acuity, spherical value, cylindrical value, and spherical equivalent of each group before surgery and at 6 months postoperatively.
Results:
When comparing the groups preoperatively and postoperatively, the best-corrected visual acuity, spherical value, and spherical equivalent showed significant improvement in all groups (p < 0.05). The incidence of complications, such as haptic slippage and intraocular lens dislocation, increased with the axial length and anterior chamber depth.
Conclusions
The use of fibrin adhesive for intraocular lens intrascleral fixation improves visual acuity and reduces refractive error. Postoperatively, there was no significant change in cylindrical value. Because axial length and anterior chamber depth affect refractive error, both should be considered in correlation with the surgical method.