2.Surgical Management of Adrenal Diseases.
Yeo Deuk YOON ; Sae Kook CHANG
Korean Journal of Urology 1990;31(4):574-581
Between 1980 and 1989, our experience of surgical management with 21 adrenal diseases was presented. There were 3 cases of Cushing's syndrome, 3 of primary aldosteronism, 6 of pheochromo cytoma, 5 of neuroblastoma, 2 of extraadrenal paraganglioma, 1 of adrenocortical carcinoma and 1 of adrenal cyst. The use of advanced radiographic and laboratory procedures resulted in the refinement of diagnosis and localization of tumors, enabling better surgical management of adrenal disorders. Among those, 19 cases underwent unilateral adrenalectomy and 2 cases of Cushing's disease underwent bilateral adrenalectomy. Surgical approaches to the adrenal gland were transperitoneal in 16 cases and extraperitoneal in 5 cases. Operative complications occurred in 11 cases. The incidence, however, of complications related to the operative approach was not significant except in 2 cases of postoperative ileus.
Adrenal Glands
;
Adrenalectomy
;
Adrenocortical Carcinoma
;
Cushing Syndrome
;
Diagnosis
;
Hyperaldosteronism
;
Ileus
;
Incidence
;
Neuroblastoma
;
Paraganglioma
3.Two Cases of Charcoal Injection in Recurrent Microcarcinoma of Thyroid Bed after Total Thyroidectomy.
Korean Journal of Otolaryngology - Head and Neck Surgery 2013;56(8):522-524
Ultrasonograms and thyroglobulin measurements have high sensitivity for evaluation of recurrent thyroid cancer and they allow early detection of recurrent or residual thyroid tumors. Patients treated for thyroid cancer can show recurrent or residual tumors in 5-40% of cases. Radioiodine therapy and surgical excision are effective for recurrent or residual thyroid tumors, but up to 30% of tumors will not reveal iodine uptake, and need further observation or surgical excision. Clinically, patients choose surgical excision rather than observation. During reoperation, the risk of surgical complications is increased because of fibrosis, neovascularization, and modified anatomical relationships. In the past, surgeons have occasionally used methylene blue during reoperation but it tends to spread into the surrounding tissues. Recently, charcoal injection has been used for recurrent thyroid microcarcinoma. The authors successfully used charcoal injection for the removal of tumor in two cases of recurrent microcarcinoma of the thyroid bed after total thyroidectomy.
Charcoal
;
Fibrosis
;
Humans
;
Iodine
;
Methylene Blue
;
Neoplasm, Residual
;
Reoperation
;
Thyroglobulin
;
Thyroid Gland
;
Thyroid Neoplasms
;
Thyroidectomy
4.Comparison of Behavioral and Psychological Symptoms between Early and Late Onset Alzheimer's Disease According to the Progression of Dementia.
Yeo Ju YOON ; Eun Joo KIM ; Chang Hee HONG
Dementia and Neurocognitive Disorders 2014;13(4):89-93
The aim of this study was to investigate behavioral and psychological symptoms of dementia (BPSD) measured by caregiver-administered neuropsychiatric inventory (CGA-NPI) as a function of dementia severity in early onset (EOAD) versus late onset Alzheimer's disease (LOAD). A total of 113 patients with AD consisting of 49 patients with EOAD and 64 patients with LOAD were enrolled consecutively. General cognitive function and severity of dementia were assessed by the Korean version of mini-mental status examination and clinical dementia rating (CDR), respectively. In the mild stage (CDR 0.5-1), LOAD patients had a significantly higher total CGA-NPI score than EOAD patients. Subgroup analysis demonstrated that disinhibition and night-time behavior were more common and severe in the LOAD group than the EOAD group. However, in the moderate to severe stage (CDR 2-3), EOAD patients had a significantly higher total CGA-NPI score with higher subscores in hallucination, agitation/aggression, irritability/lability, aberrant motor behavior, and appetite/eating change. This study suggested that the heterogeneity of BPSD in AD might be accounted for by dementia severity as well as age at symptoms onset.
Alzheimer Disease*
;
Dementia*
;
Hallucinations
;
Humans
;
Population Characteristics
5.Comparative Analysis of CT, Ultrasonography and Angiography in Staging Renal Cell Carcinoma.
Yeo Deuk YOON ; Sung Kwang CHUNG ; Yoon Kyu PARK ; Sae Kook CHANG
Korean Journal of Urology 1989;30(4):492-495
In the 1980s ultrasound and CT gradually replaced angiography as the primary diagnostic modalities for renal masses. From 1983 to 1988, a comparative diagnostic study was carried out on 24 patients with pathologically proven renal cell carcinoma which were staged by various methods. Staging was correct with computerized tomography in 75 per cent of the lesions (15 of 20), with ultrasound in 68.2 per cent (15 of 22) and angiography in 53.8 per cent (7 of 13). We conclude that at the present time CT is the optimal technique to stage renal cell carcinoma. Angiography should be used selected cases not adequately evaluated by CT or ultrasound.
Angiography*
;
Carcinoma, Renal Cell*
;
Humans
;
Ultrasonography*
6.Percutaneous Antegrade Transluminal Ureteral Dilatation of Ureteral Stricture in Renal Transplant Patient.
Tae Gyun KWON ; Yeo Deuk YOON ; Sung Kwang CHUNG ; Yoon Kyu PARK ; Sae Kook CHANG
Korean Journal of Urology 1990;31(5):781-785
The development of balloon catheters and advances in percutaneous endourology have made transluminal dilatation a safe and effective procedure for the treatment of benign ureteral strictures. Herein we introduce a case of our successful experience of percutaneous antegrade balloon dilatation of the allograft ureteral stenosis.
Allografts
;
Catheters
;
Constriction, Pathologic*
;
Dilatation*
;
Humans
;
Ureter*
7.Multiple Skeletal Involvement of Multiple Myeloma Associated Amyloidosis Presented with Pathologic Fracture.
Doo Sup KIM ; Chang Ho YI ; Won Sik YOON ; Yeo Seung YOON
The Journal of the Korean Orthopaedic Association 2013;48(2):130-137
Amyloidosis, which refers to amyloid deposits accumulated in various organs, belongs to the same category as multiple myeloma; it can be accompanied by pathologic fracture. It is important to find out the exact cause of amyloidosis in order to decide treatment options and to predict prognosis. The authors described an amyloidosis case with multiple musculoskeletal involvements presented with pathologic fracture and arthrosis, and also reviewed the related articles.
Amyloidosis
;
Fractures, Spontaneous
;
Multiple Myeloma
;
Plaque, Amyloid
;
Prognosis
8.Carpinus turczaninowii extract modulates arterial inflammatory response: a potential therapeutic use for atherosclerosis
Youn Kyoung SON ; So Ra YOON ; Woo Young BANG ; Chang Hwan BAE ; Joo Hong YEO ; Rimkyo YEO ; Juhyun AN ; Juhyun SONG ; Oh Yoen KIM
Nutrition Research and Practice 2019;13(4):302-309
BACKGROUND/OBJECTIVES: Vascular inflammation is an important feature in the atherosclerotic process. Recent studies report that leaves and branches of Carpinus turczaninowii (C. turczaninowii) have antioxidant capacity and exert anti-inflammatory effects. However, no study has reported the regulatory effect of C. turczaninowii extract on the arterial inflammatory response. This study therefore investigated modulation of the arterial inflammatory response after exposure to C. turczaninowii extract, using human aortic vascular smooth muscle cells (HAoSMCs). MATERIALS/METHODS: Scavenging activity of free radicals, total phenolic content (TPC), cell viability, mRNA expressions, and secreted levels of cytokines were measured in LPS-stimulated (10 ng/mL) HAoSMCs treated with the C. turczaninowii extract. RESULTS: C. turczaninowii extract contains high amounts of TPC (225.6 ± 21.0 mg of gallic acid equivalents/g of the extract), as well as exerts time-and dose-dependent increases in strongly scavenged free radicals (average 14.8 ± 1.97 µg/mL IC50 at 40 min). Cell viabilities after exposure to the extracts (1 and 10 µg/mL) were similar to the viability of non-treated cells. Cytokine mRNA expressions were significantly suppressed by the extracts (1 and 10 µg/mL) at 6 hours (h) after exposure. Interleukin-6 secretion was dose-dependently suppressed 2 h after incubation with the extract, at 1–10 µg/mL in non-stimulated cells, and at 5 and 10 µg/mL in LPS-stimulated cells. Similar patterns were also observed at 24 h after incubation with the extract (at 1–10 µg/mL in non-stimulated cells, and at 10 µg/mL in the LPS-stimulated cells). Soluble intracellular vascular adhesion molecules (sICAM-1) secreted from non-stimulated cells and LPS-stimulated cells were similarly suppressed in a dose-dependent manner after 24 h exposure to the extracts, but not after 2 h. In addition, sICAM-1 concentration after 24 h treatment was positively related to IL-6 levels after 2 h and 24 h exposure (r = 0.418, P = 0.003, and r = 0.524, P < 0.001, respectively). CONCLUSIONS: This study demonstrates that C. turczaninowii modulates the arterial inflammatory response, and indicates the potential to be applied as a therapeutic use for atherosclerosis.
Antioxidants
;
Arteries
;
Atherosclerosis
;
Betulaceae
;
Cell Survival
;
Cytokines
;
Free Radicals
;
Gallic Acid
;
Humans
;
Inflammation
;
Inhibitory Concentration 50
;
Interleukin-6
;
Muscle, Smooth, Vascular
;
Phenol
;
RNA, Messenger
9.Bladder Augmentation and Continent Diversion Using the Mainz Pouch (Mixed Augmentation Ileum and Cecum).
Yeo Deuk YOON ; Hyun Cheol SHIN ; Sung Kwang CHUNG ; Bup Wan KIM ; Sae Kook CHANG
Korean Journal of Urology 1988;29(2):299-306
The Mainz pouch offers a low pressure reservoir of adequate capacity, antirefluxing ureteral implantation and continent reservoir for bladder augmentation and continent diversion. Reconstruction of a urinary reservoir using a Mainz pouch was performed on 2 patients in 1987. The Mainz pouch was used for bladder augmentation in one patient and for continent urinary diversion in other one. The operative technique and clinical results are described.
Humans
;
Ileum*
;
Ureter
;
Urinary Bladder*
;
Urinary Diversion
10.The Expression of P53 and Phosphorylation of H2AX in Germ Cells of Varicocele Rats.
Won Jin CHO ; Moon Hwan YEO ; Ho Jin YOU ; In Youb CHANG ; Hyung Yoon MOON ; Chul Sung KIM
Korean Journal of Urology 2006;47(12):1354-1360
PURPOSE: To explore the expressions of P53 and phosphorylation-H2AX in varicocele-induced rat testes. MATERIALS AND METHODS: A total of 16 adult male Sprague-Dawley rats underwent an operation; 12 underwent an experimental varicocele and 4, as controls, were sham-operated. Groups of 4 varicocele-induced rats underwent a left orchiectomy after 2 or 3 weeks, or both orchiectomies after 4 weeks. The sham-operated rats underwent both orchiectomies after 4 weeks. Sections of both testes from each animal were studied. The changes in the expressions of P53 and phosphorylation of H2AX were determined using immunohistochemistry and western blot. RESULTS: Immunohistochemical staining of the left testes in the varicocele- induced rats showed that the expressions of P53 and phosphorylation of H2AX had not begun 2 weeks postoperatively, but remarkable results were observed after 3 and 4 weeks. Both testes of the varicocele-induced rats showed the expressions of P53 and phosphorylation of H2AX after 4 weeks, with the left testes being more distinctive in immunohistochemical staining compared to the right. Western blot of the left testes in the varicocele- induced rats also showed unclear expressions of P53 and gamma-H2AX after 2 weeks. Considerable distinction was seen after 3 and 4 weeks compared to the control group. CONCLUSIONS: Our results suggest that experimental varicocele is associated with increased sperm DNA damage. These changes may be related to abnormal spermatogenesis.
Adult
;
Animals
;
Blotting, Western
;
DNA Damage
;
Germ Cells*
;
Humans
;
Immunohistochemistry
;
Male
;
Orchiectomy
;
Phosphorylation*
;
Rats*
;
Rats, Sprague-Dawley
;
Spermatogenesis
;
Spermatozoa
;
Testis
;
Varicocele*