1.Effect of Naltrexone and Olanzapine on Alcohol Consumption of C57BL-6 Type Rats.
Ki Beom YUN ; Young Joon KWON ; Sang Woo HAN
Journal of Korean Neuropsychiatric Association 2002;41(2):246-253
OBJECTIVE: This study compared the effects of opioids antagonist naltrexone and serotonin-dopamine recepter antagonist olanzapine on the reduction of alcohol consumption level of alcohol intake reinforced C57BL-6 type rat. METHODS: Small amount of alcohol and water were applied to the 28 rats for 2 hours per day during 30 days. On the 31th day, The rats were divided into four groups and given different medications by intraabdominal route 30 minutes before the alcohol consumption. For the next 35 days, the 3 subject group were applied with naltrexone 5mg/kg, olanzapine 0.1mg/kg and olanzapine 1.0mg/kg and the control group with distilled water everyday. RESULTS: In contrast to control group, naltrexone 5mg/kg group showed a significant reduction of alcohol consumption after 4 weeks. Olanzapine 0.1mg/kg group showed a decrease of alcohol consumption from 2 to 5 week period. Although olanzapine 1mg/kg group showed a momentary decrease of the consumption during the 2nd and 3rd weeks, the group did not show significant decrease afterwards. Olanzapine 0.1mg/kg was more effective in reducing the alcohol consumption than olanzapine 1mg/kg. However, it is not significantly more effective compared to the naltrexone 5mg/kg in reducing the alcohol consumption of the reinforced rats' alcohol intake. CONCLUSION: This results suggest that the low dose of olanzapine as well as naltrexone reduce the alcohol intake in C57BL-6 type rats.
Alcohol Drinking*
;
Alcoholism
;
Analgesics, Opioid
;
Animals
;
Naltrexone*
;
Rats*
;
Water
2.Relapsing polychondritis.
Sihoon LEE ; Sang Yun CHUNG ; Soon Won HONG ; Jung Min KIM ; Chang Yul LEE ; Yong Beom PARK ; Soo Kon LEE
Korean Journal of Medicine 2001;61(3):313-314
No abstract available.
Polychondritis, Relapsing*
3.A Case of Renal Hypoplasia with Renovascular Hypertension.
Sang Doo LEE ; Jae Hee PARK ; Jae Beom LEE ; Yun Duk YOO ; Byoung Hwa LEE ; Mi Sun LEE
Journal of the Korean Pediatric Society 1995;38(11):1565-1570
No abstract available.
Hypertension, Renovascular*
4.A Case of Left Coronary Osteal Stenosis Combined with Moyamoya Disease.
Yong Beom PARK ; Keon Young KIM ; Yong Han BEAK ; Jung Il CHUNG ; Sang Ho CHO ; Seung Yun CHO
Korean Circulation Journal 1996;26(3):740-747
We report a case of a 36 year old female with coronary artery obstructive disease(Left coronary osteal stenosis), who had been admitted due to severe headache and vomitting. In admission, she was diagnosed as moyamoya disease on cerebral angiogram. She had no history of hypertension, diabetes mellitus, hyperlipidemia, smoking. She had experienced angina for 2 years, and 1 year ago she ws diagnosed as bypass surgery with left main coronary artery angioplasty. In moyamoya disease, several portions of extracranial arteries have been found to be involved, but so far, only one case has been reported the coronary involvement on coronary angiogram in the world. And, there has not been a report about moyamoya disease combined with left main osteal lesion yet. This present case indicates that we need to exam for extracranial vascular system including the heart in moyamoya disease.
Adult
;
Angioplasty
;
Arteries
;
Constriction, Pathologic*
;
Coronary Vessels
;
Diabetes Mellitus
;
Female
;
Headache
;
Heart
;
Humans
;
Hyperlipidemias
;
Hypertension
;
Moyamoya Disease*
;
Smoke
;
Smoking
5.Age-related Changes of Macular Ganglion Cell-inner Plexiform Layer Thickness in Korean Elderly Subjects
Yun Ji LEE ; Yung Ju YOO ; Sang Beom HAN
Korean Journal of Ophthalmology 2020;34(5):404-412
Purpose:
We sought to establish normative ranges of the ganglion cell-inner plexiform layer (GCIPL) thickness using spectral-domain optical coherence tomography in Korean elderly individuals and to identify factors that influence GCIPL thickness.
Methods:
We conducted a retrospective, observational study of 114 healthy subjects (75 years old or older) who underwent comprehensive ophthalmic examinations at a single institution. GCIPL thickness was measured with the Cirrus spectral-domain optical coherence tomography system and automatic segmentation. Subjects were divided into two age groups: those younger than 80 years and those 80 years or older, respectively. A cross-sectional analysis was adopted to evaluate associations of GCIPL thickness with sex, age, intraocular pressure, optic disc rim area, axial length, spherical equivalent (SE) refractive errors, astigmatism, and body mass index.
Results:
The average and minimum GCIPL thicknesses were 80.3 ± 5.6 µm and 76.3 ± 5.9 µm, respectively. The GCIPL thickness was significantly lower in the older group than in the younger group in the inferior, inferonasal, and inferotemporal segments (all p < 0.01). A thinner average GCIPL thickness was strongly associated with increasing age (β = -2.87, p = 0.021) and thinner circumpapillary retinal nerve fiber layer thickness (β = 2.87, p < 0.001) in all segments.
Conclusions
GCIPL thickness decreased with age globally and in all segments, even after 75 years of age. Thinner GCIPL was associated with older age and thinner circumpapillary retinal nerve fiber layer. Age-related changes should be considered when using GCIPL thickness to assess glaucoma and other optic neuropathies characterized by retinal ganglion cell loss.
6.Parkinsonism in corticobasal syndrome may not be primarily due to presynaptic dopaminergic deficiency
Ji Young Yun ; Jong-Min Kim ; Han-Joon Kim ; Jee-Young Lee ; Hee Jin Kim ; Ji Seon Kim ; Yu Kyeong Kim ; Sang Eun Kim ; Tae-Beom Ahn ; Beom S Jeon
Neurology Asia 2015;20(1):23-27
The clinical features of corticobasal degeneration (CBD) are quite asymmetric. The severity of
clinical symptoms and dopamine transporter (DAT) bindings were less correlated compared to other
parkinsonisms, suggesting that presynaptic nigrostriatal dopaminergic dysfunction may not explain
extrapyramidal manifestations in CBD. Therefore we wanted to reexamine asymmetry and severity
between DAT imaging and clinical findings. We studied patients meeting the diagnostic criteria for
CBD based on clinical features. We collected their clinical information and imaging retrospectively.
Seven patients were enrolled and all had asymmetric rigidity, bradykinesia and unilateral limb dystonia.
These symptoms did not improve with levodopa. All patients showed symptoms bilaterally in the last
visit, but asymmetry of clinical symptoms was remarkable at the time of DAT imaging. The DAT
bindings were decreased in six subjects. However, one patient showed normal DAT binding. Four
patients had a more evident DAT reduction on the side contralateral to the more clinically affected
side, however, two patients had a more prominent reduction on the ipsilateral side. The symptoms
that we regard as parkinsonian features in CBD are not only explained by presynaptic dopaminergic
dysfunction. Our findings suggest that postsynaptic dopaminergic or nondopaminergic systems may
play a major role in parkinsonian symptoms in corticobasal syndrome.
Parkinsonian Disorders
8.Extensive Systemic Sarcoidosis with Testicular Involvement Mimicking Metastatic Testicular Cancer.
Yun Beom KIM ; Yeun Goo CHUNG ; Sang Jin KIM ; Se Joong KIM ; Hyun Soo AHN ; Hee Jae JOO ; Sun Il KIM
Korean Journal of Urology 2011;52(4):295-297
Sarcoidosis is an idiopathic, multisystem disease that rarely involves the genitourinary tract. Here we present an unusual case of testicular sarcoidosis with extensive lymphadenopathy that mimicked a metastatic testicular tumor. A 27-year-old male presented with a palpable right testicular mass accompanied by multiple palpable inguinal lymph nodes. The scrotal ultrasound showed a hypoechoic lesion at the inferior portion of the right testis. Extensive enlarged lymph nodes were noted in multiple areas on the abdominal computed tomography. Preoperative testicular tumor markers were within the normal range. Exploration of the right testis with a frozen section analysis of the right testicular mass and of a palpable right inguinal lymph node showed granulomatous inflammation. The testis was salvaged and the final pathological diagnosis was sarcoidosis. Treatment with high-dose corticosteroids resulted in complete resolution of the intratesticular mass and a significant decrease in the extent of the lymphadenopathy.
Adrenal Cortex Hormones
;
Adult
;
Frozen Sections
;
Humans
;
Inflammation
;
Lymph Nodes
;
Lymphatic Diseases
;
Male
;
Reference Values
;
Sarcoidosis
;
Steroids
;
Testicular Neoplasms
;
Testis
;
Biomarkers, Tumor
9.Surgical Management of Invasive Pulmonary Aspergillosis in Hemtologic Malignancy Patients: Report of 2 cases.
Min Sun BEOM ; Kook Joo NA ; Sang Yun SONG ; Byongpyo KIM ; Jeong Min PARK ; Kyo Seon LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2007;40(1):69-73
The mortality rate of the invasive pulmonary aspergillosis to be able to developed during chemotherapy induced myleosuppressionin is high in hematologic malignancy patients despite antifungal treatment. Effective antifungal treatment combined with operation can decrease the mortaligy rate of the invasive pulmonary aspergillosis. Recently, we experienced the successful management of the two cases of invasive pulmonary aspergillosis in acute lymphoblastic leukemia through effective antifungal treatment and surgical resection. We report this cases with review of literature.
Drug Therapy
;
Hematologic Neoplasms
;
Hematology
;
Humans
;
Invasive Pulmonary Aspergillosis*
;
Mortality
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
Pulmonary Aspergillosis
10.Striatal Dopaminergic Functioning in Patients with Sporadic and Hereditary Spastic Paraplegias with Parkinsonism.
Ji Seon KIM ; Jong Min KIM ; Yu Kyeong KIM ; Sang Eun KIM ; Ji Young YUN ; Beom S JEON
Journal of Korean Medical Science 2013;28(11):1661-1666
Sporadic spastic paraplegia (SSP) and hereditary spastic paraplegia (HSP) belong to a clinical and genetically heterogeneous group of disorders characterized by progressive spasticity and weakness in the lower extremities. The symptoms are associated with pyramidal tract dysfunction and degeneration of the corticospinal tracts. Parkinsonism is uncommon in SSP/HSP patients. However, both disorders are associated with damage to the nigrostriatal dopaminergic system. In the present study, the clinical features of patients with SSP/HSP were investigated, and nigrostriatal dopaminergic binding potential was assessed using dopamine transporter (DAT) single-photon emission computer tomography (SPECT). Nine patients with spastic paraplegia participated in the present study. The subjects underwent DAT SPECT using the agent [2-[[2-[[[3-(4-chlorophenyl)-8-methyl-8-azabicyclo[3,2,1]oct-2-yl]methyl](2-mercaptoethyl)amino]ethyl]amino]ethanethiolato (3-)-N2,N20,S2,S20]oxo-[IR-(exo-exo)])-[99mTc]technetium ([99mTc]TRODAT-1). The [99mTc]TRODAT-1 SPECT images of five patients appeared normal, whereas the images of four patients revealed reduced striatal ligand uptake. Among the four patients with reduced uptake, two had parkinsonism, and one exhibited periodic limb movements and restless leg syndrome. Our DAT SPECT imaging study shows that reduced DAT density may be observed in patients with parkinsonism. The results of the present study offer an explanation for the spectrum of spastic paraplegia symptoms and the progression of the disorder.
Adult
;
Aged
;
Brain/*radionuclide imaging
;
Dopamine Plasma Membrane Transport Proteins/metabolism
;
Female
;
Humans
;
Male
;
Middle Aged
;
Organotechnetium Compounds/diagnostic use
;
Paraplegia/diagnosis/genetics/*radionuclide imaging
;
Parkinsonian Disorders/complications/genetics/*radionuclide imaging
;
Pyramidal Tracts
;
Radiopharmaceuticals/diagnostic use
;
Spastic Paraplegia, Hereditary/diagnosis/genetics/*radionuclide imaging
;
Tomography, Emission-Computed, Single-Photon