1.A Case of Paraneoplastic Autoimmune Retinopathy in a Young Man with Testicular Cancer
Myungho SEO ; Seongmi KIM ; Ahnul HA ; Jinho JEONG ; Ki Tae NAM
Journal of the Korean Ophthalmological Society 2024;65(11):753-759
Purpose:
To report a case of paraneoplastic autoimmune retinopathy in a patient with a history of testicular cancer.Case summary: A 29-year-old man presented with photopsia and floaters. Initial fundus examination revealed no abnormal findings. However, he returned 1 month later with complaints of visual field defects. Fundus examination revealed diffuse white spots in the macula and midperipheral retina and fundus autofluorescence demonstrated hyper-autofluorescence. Optical coherence tomography showed disruption of the ellipsoid zone sparing the fovea. Visual field examination revealed peripheral visual field defects and an electroretinogram showed reduced rod and cone cell responses. Considering his history of testicular cancer, serum paraneoplastic autoantibody panel testing was performed which revealed borderline levels of anti-recoverin antibody leading to a diagnosis of paraneoplastic autoimmune retinopathy. The patient was treated with oral steroids and mycophenolate mofetil for 1 year. However, there was no improvement in the subjective symptoms or ophthalmologic findings.
Conclusions
This case of paraneoplastic autoimmune retinopathy in a young man with a history of testicular cancer highlights an early clinical presentation of the disease. It is crucial to recognize that the initial clinical presentation of autoimmune retinopathy can be nonspecific.
2.A Case of Paraneoplastic Autoimmune Retinopathy in a Young Man with Testicular Cancer
Myungho SEO ; Seongmi KIM ; Ahnul HA ; Jinho JEONG ; Ki Tae NAM
Journal of the Korean Ophthalmological Society 2024;65(11):753-759
Purpose:
To report a case of paraneoplastic autoimmune retinopathy in a patient with a history of testicular cancer.Case summary: A 29-year-old man presented with photopsia and floaters. Initial fundus examination revealed no abnormal findings. However, he returned 1 month later with complaints of visual field defects. Fundus examination revealed diffuse white spots in the macula and midperipheral retina and fundus autofluorescence demonstrated hyper-autofluorescence. Optical coherence tomography showed disruption of the ellipsoid zone sparing the fovea. Visual field examination revealed peripheral visual field defects and an electroretinogram showed reduced rod and cone cell responses. Considering his history of testicular cancer, serum paraneoplastic autoantibody panel testing was performed which revealed borderline levels of anti-recoverin antibody leading to a diagnosis of paraneoplastic autoimmune retinopathy. The patient was treated with oral steroids and mycophenolate mofetil for 1 year. However, there was no improvement in the subjective symptoms or ophthalmologic findings.
Conclusions
This case of paraneoplastic autoimmune retinopathy in a young man with a history of testicular cancer highlights an early clinical presentation of the disease. It is crucial to recognize that the initial clinical presentation of autoimmune retinopathy can be nonspecific.
3.A Case of Paraneoplastic Autoimmune Retinopathy in a Young Man with Testicular Cancer
Myungho SEO ; Seongmi KIM ; Ahnul HA ; Jinho JEONG ; Ki Tae NAM
Journal of the Korean Ophthalmological Society 2024;65(11):753-759
Purpose:
To report a case of paraneoplastic autoimmune retinopathy in a patient with a history of testicular cancer.Case summary: A 29-year-old man presented with photopsia and floaters. Initial fundus examination revealed no abnormal findings. However, he returned 1 month later with complaints of visual field defects. Fundus examination revealed diffuse white spots in the macula and midperipheral retina and fundus autofluorescence demonstrated hyper-autofluorescence. Optical coherence tomography showed disruption of the ellipsoid zone sparing the fovea. Visual field examination revealed peripheral visual field defects and an electroretinogram showed reduced rod and cone cell responses. Considering his history of testicular cancer, serum paraneoplastic autoantibody panel testing was performed which revealed borderline levels of anti-recoverin antibody leading to a diagnosis of paraneoplastic autoimmune retinopathy. The patient was treated with oral steroids and mycophenolate mofetil for 1 year. However, there was no improvement in the subjective symptoms or ophthalmologic findings.
Conclusions
This case of paraneoplastic autoimmune retinopathy in a young man with a history of testicular cancer highlights an early clinical presentation of the disease. It is crucial to recognize that the initial clinical presentation of autoimmune retinopathy can be nonspecific.
4.Comparison of Methods Used to Prevent Fogging of a Non-contact Wide-field Viewing System during Vitrectomy
Myungho SEO ; Ahnul HA ; Hye Jin LEE ; Jinho JEONG ; Ki Tae NAM
Journal of the Korean Ophthalmological Society 2023;64(10):899-903
Purpose:
To compare the effectiveness of warm saline and anti-fog solution for preventing fogging of a non-contact wide-field viewing system during vitrectomy.
Methods:
Five liters of water at 36°C were placed in a transparent container. The fogging areas of wide-field lenses were microscopically measured. We created three groups: lenses soaked in normal saline at 25°C for 1 minute (control), lenses soaked in normal saline at 50°C for 1 minute (warm saline), and lenses that were wiped with a sponge soaked in anti-fog solution (ULTRASTOP pro med. Solution, Sigmapharm, Vienna, Austria) after prior soaking in normal saline at 25°C for 1 minute (anti-fog). Images of fogged areas were acquired at 10 seconds and 1, 3, and 5 minutes. Extent of fogged areas and central lens invasion were determined. All experiments were repeated 10 times.
Results:
In the control group, the entire areas were always completely fogged. The average fog coverage values were 4.34 ± 1.28, 6.30 ± 1.38, 56.00 ± 25.01, and 93.81 ± 5.88% at 10 seconds and 1, 3, and 5 minutes in the warm saline group and 4.74 ± 0.57, 7.35 ± 0.96, 10.13 ± 1.09, and 11.74 ± 1.74% in the anti-fog group, respectively. There were significant differences at 3 and 5 minutes (p = 0.029, p = 0.012). Fogging of the central lens was detected in 8 tests after 3 minutes and all 10 tests after 5 minutes in the warm saline group, but no fogging was detected in the anti-fog group.
Conclusions
Application of an anti-fog solution to a wide-field viewing lens prevents lens fogging during vitrectomy.
5.A Case of Successful Percutaneous Coronary Intervention by Fractional Flow Reserve and 13N-Ammonia Positron Emission Tomography.
Jinsun CHANG ; Hayoung CHOI ; Hyeong Won SEO ; Min Chul KIM ; Hyun Kuk KIM ; Youngkeun AHN ; Myung Ho JEONG
Journal of Lipid and Atherosclerosis 2015;4(1):39-43
A 43-year-old male presented with effort angina. Ammonia positron emission tomography (PET) revealed reversible perfusion defect in left anterior descending artery (LAD) and left circumflex artery (LCX) territories with decreased coronary flow reserve. Coronary angiogram showed significant stenosis in proximal LAD and intermediate diffuse stenosis in LCX and right coronary artery (RCA). Fractional flow reserve (FFR) showed similar results with ammonia PET. After percutaneous coronary intervention for LAD and LCX, flow and pressure checked by PET and FFR showed improvement. Simultaneously use of ammonia PET and FFR could be useful for determining ischemia-inducible lesion especially in diffuse intermediate lesion with discrepancy between functional studies.
Adult
;
Ammonia
;
Arteries
;
Constriction, Pathologic
;
Coronary Artery Disease
;
Coronary Vessels
;
Humans
;
Male
;
Percutaneous Coronary Intervention*
;
Perfusion
;
Positron-Emission Tomography*
6.Is Thyroid Hormone a Risk Factor of Coronary Atherosclerosis in Korean Patients?.
Kyung Ho YUN ; Myung Ho JEONG ; Dong Goo KANG ; Kye Hun KIM ; Sang Yup LIM ; Yeon Sang LEE ; Sang Hyun LEE ; Seo Na HONG ; Young Joon HONG ; Ju Han KIM ; Young Keun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Nam Ho KIM ; Seok Kyu OH ; Jin Won JEONG ; Jung Chaee KANG
Korean Circulation Journal 2005;35(1):43-48
BACKGROUND AND OBJECTIVES: Overt and subclinical hypothyroidism is known to be associated with developing atherosclerosis and adverse changes in blood lipid. There has been no data regarding the effects of a normal range of thyroid hormone on the presence of coronary atherosclerosis. SUBJECTS AND METHODS: We studied 1 25 consecutive patients (age: 60.0 +/-11.1 years, male: female=84:41) who underwent diagnostic coronary angiography. The clinical diagnoses on admission were stable angina (32.0%), unstable angina (53.6%), and acute myocardial infarction (14.4%). The thyroid hormones [thyroid stimulating hormone (TSH), free thyroxine and free 3 -iodothyronine], serum lipid levels, high sensitivity C-reactive protein (hsCRP) level, homocysteine and fibrinogen levels were measured. The coronary angiographic results were compared with laboratory findings. RESULTS: The angiographic diagnoses of coronary artery disease were no significant stenosis in 4 1 patients (32.8%), single vessel disease in 47 patients (37.6%) and multivessel disease in 37 patients (29.6%). The serum TSH levels showed a trend toward higher levels in the patients with multivessel disease compared to the patients with no significant stenosis (1.22+/-0.96 uIU/mL vs. 0.73+/-0.53 uIU/mL, respectively, p=0.053). According to the levels of TSH (<1.0 uIU/mL and > or =1.0 IU/mL), the incidence of multivessel disease was significantly higher in the patients with high serum TSH levels (23.1 % vs. 40.0%, respectively, p=0.038). A significant correlation was observed between the levels of TSH and the monocyte count (r=0.251, p=0.005), hsCRP level (r=0.208, p=0.023) and homocysteine level (r=0.279, p=0.002). CONCLUSION: The high level of serum TSH is associated with multivessel disease, abnormal inflammatory markers and high homocysteine levels.
Angina, Stable
;
Angina, Unstable
;
Arteriosclerosis
;
Atherosclerosis
;
C-Reactive Protein
;
Constriction, Pathologic
;
Coronary Angiography
;
Coronary Artery Disease*
;
Coronary Disease
;
Diagnosis
;
Fibrinogen
;
Homocysteine
;
Humans
;
Hypothyroidism
;
Incidence
;
Male
;
Monocytes
;
Myocardial Infarction
;
Reference Values
;
Risk Factors*
;
Thyroid Gland*
;
Thyroid Hormones
;
Thyroxine
7.Aquatide Activation of SIRT1 Reduces Cellular Senescence through a SIRT1-FOXO1-Autophagy Axis.
Chae Jin LIM ; Yong Moon LEE ; Seung Goo KANG ; Hyung W LIM ; Kyong Oh SHIN ; Se Kyoo JEONG ; Yang Hoon HUH ; Suin CHOI ; Myungho KOR ; Ho Seong SEO ; Byeong Deog PARK ; Keedon PARK ; Jeong Keun AHN ; Yoshikazu UCHIDA ; Kyungho PARK
Biomolecules & Therapeutics 2017;25(5):511-518
Ultraviolet (UV) irradiation is a relevant environment factor to induce cellular senescence and photoaging. Both autophagy- and silent information regulator T1 (SIRT1)-dependent pathways are critical cellular processes of not only maintaining normal cellular functions, but also protecting cellular senescence in skin exposed to UV irradiation. In the present studies, we investigated whether modulation of autophagy induction using a novel synthetic SIRT1 activator, heptasodium hexacarboxymethyl dipeptide-12 (named as Aquatide), suppresses the UVB irradiation-induced skin aging. Treatment with Aquatide directly activates SIRT1 and stimulates autophagy induction in cultured human dermal fibroblasts. Next, we found that Aquatide-mediated activation of SIRT1 increases autophagy induction via deacetylation of forkhead box class O (FOXO) 1. Finally, UVB irradiation-induced cellular senescence measured by SA-β-gal staining was significantly decreased in cells treated with Aquatide in parallel to occurring SIRT1 activation-dependent autophagy. Together, Aquatide modulates autophagy through SIRT1 activation, contributing to suppression of skin aging caused by UV irradiation.
Autophagy
;
Cell Aging*
;
Fibroblasts
;
Humans
;
Skin
;
Skin Aging
8.Increased Inflammatory Markers and Endothelial Dysfunction are Associated with Variant Angina.
Sook Hee CHO ; In Hyae PARK ; Myung Ho JEONG ; Seon Ho HWANG ; Nam Shik YUN ; Seo Na HONG ; Sang Rok LEE ; Kye Hun KIM ; Yun MOON ; Young Joon HONG ; Hyung Wook PARK ; Ju Han KIM ; Young Keun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Korean Circulation Journal 2007;37(1):27-32
BACKGROUND AND OBJECTIVES: Endothelial dysfunction and increased vascular inflammation may be associated with variant angina (VA). However, their exact roles remain to be clarified. The aim of the presents study is to investigate whether the level of inflammation markers and the flow-mediated dilation (FMD) are related to VA. SUBJECTS AND METHODS: The study included 46 patients (VA group: 53.9+/-12.0 years, 20 males) with positive spasm provocation tests and they were without significant coronary stenosis, and 14 patients (control group: 46.6+/-13.5 years, 7 males) with negative spasm provocation tests and they were without significant coronary stenosis. The clinical characteristics and inflammatory markers, including the high sensitive C-reactive protein (hsCRP) level, the monocyte count and the von Willebrand factor (vWF) level, and the FMD were compared between the two groups. The FMD and inflammatory markers were measured in the morning before performing the ergonovine provocation coronary angiogram. RESULTS: The level of vWF was significantly higher in the VA group than in the control group (166.5+/-41.9% vs. 118.0+/-65.3%, respectively, p=0.029). The FMD was significantly decreased in the VA group compared with the control group (9.2+/-4.3% vs. 12.4+/-4.2%, respectively, p=0.021). Nitrate-mediated dilation did not differ between the two groups. The levels of the monocyte count, hs-CRP and homocysteine were higher in the VA group than in the control group (554.7+/-261.0/mm3 vs. 440.7+/-136.0/mm3, respectively, p=0.039; 0.3+/-0.4 mg/dL vs. 0.1+/-0.1 mg/dL, respectively, p=0.029; 7.54+/-4.0micronmol/L vs. 5.92+/-1.6micronmol/L, respectively, p=0.033). CONCLUSION: The results of this study suggested that increased inflammatory markers and endothelial dysfunction may be associated with variant angina.
Angina Pectoris
;
C-Reactive Protein
;
Coronary Stenosis
;
Endothelium
;
Ergonovine
;
Homocysteine
;
Humans
;
Inflammation
;
Monocytes
;
Spasm
;
von Willebrand Factor
9.Successful Management of a Patient with Factor XI Deficiency and Unstable Angina by Percutaneous Coronary Intervention.
Sang Hyun LEE ; Myung Ho JEONG ; Il Seok SOHN ; Sang Yup LIM ; Seo Na HONG ; Dong Goo KANG ; Kye Hun KIM ; Hyung Wook PARK ; Young Joon HONG ; Ju Han KIM ; Weon KIM ; Young Keun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Korean Circulation Journal 2005;35(11):860-863
Factor XI deficiency is a very rare congenital coagulation disorder. Bleeding complications should be considered when treating a patient with unstable angina and congenital coagulation disorder during and after percutaneous coronary intervention (PCI). Thrombotic complications can develop after fresh frozen plasma (FFP) transfusion and drug-eluting stent (DES) implantation. We report here on the successful management of a patient having unstable angina with factor XI deficiency, and this patient was treated with PCI under intravascular guidance and with the aid of FFP and hemostatic devices.
Angina, Unstable*
;
Angioplasty
;
Drug-Eluting Stents
;
Factor XI Deficiency*
;
Factor XI*
;
Hemorrhage
;
Humans
;
Percutaneous Coronary Intervention*
;
Plasma
10.The Effect of Alpha Lipoic Acid(Thioctacid HR(R)) on Endothelial Function in Diabetic and Hypertensive Patients.
Sang Rok LEE ; Myung Ho JEONG ; Sang Yup LIM ; Seo Na HONG ; Kye Hun KIM ; Il Suk SOHN ; Young Joon HONG ; Hyung Wook PARK ; Ju Han KIM ; Weon KIM ; Young Keun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Korean Circulation Journal 2006;36(8):559-564
BACKGROUND AND OBJECTIVES: alpha-Lipoic acid (ALA) is known to improve endothelial function in patients with diabetes. However, the effect of ALA on endothelial function in hypertensive patients is unknown. The aim of this study was to investigate whether ALA improves endothelial function in diabetic and hypertensive patients. SUBJECTS AND METHODS: This study included 40 patients who were treated with ALA (Group I: 20 diabetic patients, 54.9+/-10.2 years, Group II: 20 hypertensive patients, 56.5+/-9.0 years). ALA was administered in 600 mg/day doses during the first four weeks, and 1,200 mg/day doses during the second four weeks. Clinical characteristics and endothelial function were assessed at baseline, 4 weeks and 8 weeks after ALA administration. Evaluation of patients included: assessment of the brachial artery for flow mediated vasodilation (FMD) and the inflammatory marker (high sensitive CRP: hsCRP). RESULTS: Clinical characteristics (body mass index, total cholesterol/HDL-cholesterol and hsCRP) were unchanged in each group. However, FMD was significantly improved at 8 weeks after ALA therapy in both groups. Group I-baseline: 4 weeks : 8 weeks = 4.1+/-3.3 : 6.5+/-2.2 : 8.0+/-2.7, Group II-baseline: 4 weeks : 8 weeks = 5.5+/-3.7 : 7.4+/-3.3 : 9.3+/-2.7, p<0.05. The level of fibrinogen was observed to have an inverse correlation with FMD at 8 weeks after ALA therapy in Group I (p<0.05). CONCLUSION: ALA improves endothelial function in both diabetic and hypertensive patients.
Brachial Artery
;
Fibrinogen
;
Humans
;
Hypertension
;
Thioctic Acid
;
Vasodilation