1.Degenerative Cervical Myelopathy: Pathophysiology and Current Treatment Strategies
Sung Hoon CHOI ; Chang-Nam KANG
Asian Spine Journal 2020;14(5):710-720
Chronic compression or ischemia of the spinal cord in the cervical spine causes a clinical syndrome known as cervical myelopathy. Recently, a new term “degenerative cervical myelopathy (DCM)” was introduced. DCM encompasses spondylosis, intervertebral disk herniation, facet arthrosis, ligamentous hypertrophy, calcification, and ossification. The pathophysiology of DCM includes structural and functional abnormalities of the spinal cord caused by static and dynamic factors. In nonoperative patients, cervical myelopathy has a poor prognosis. Surgical treatments, such as anterior or posterior decompression accompanying arthrodesis, arthroplasty, or laminoplasty, should be considered for patients with chronic progressive cervical myelopathy. Surgical decompression can prevent the progression of myelopathy and improve the neurologic status, functional outcomes, and quality of life, irrespective of differences in medical systems and sociocultural determinants of health. The anterior surgical approach to the cervical spine has the advantage of removing or floating the intervertebral disk, osteophytes, and ossification of the posterior longitudinal ligament that compress the spinal cord directly. The posterior surgical approach to the cervical spine is mainly used for multisegment spinal cord compression in patients with cervical lordosis. In this review article, we addressed the pathophysiology, clinical manifestations, differential diagnosis, and treatment options for DCM.
2.Differentiation Related Gene (Drg-1) as a Molecular Marker during the Treatment of in vitro Intermittent Androgen Deprivation in prostate Cancer.
Il Mo KANG ; Kwang Sung AHN ; Han Yong CHOI
Korean Journal of Urology 2001;42(1):51-58
PURPOSE: recent studies have reported that the expression of Drg-1 is up-regulated by androgen. It has been suggested that Drg-1 gene be used as a molecular marker for prostate cancer therapies like PSA. To de termine the role of Drg-1 gene as a molecular marker during intermittent androgen deprivation(IAD) therapy, we investigated the expression of Drg-1 and compared it with PSA expression in human prostate cancer cell lines treated with dihydrotestosterone (DHT) continuously or intermittently. MATERIALS AND METHODS: Two prostate cancer cells having different status of androgen receptor [LNCaP (androgen dependent) and PC-3 (androgen independent)] were used in this study. To know the change in PSA and Drg-1 expression after DHT treatment the cells were cultured in steroid-free RPMI media for 24 hours. 10(-7) and 10(-8)M of DHT and 10(-7)M bicalutimide was added into the cells and then cultured for 72 hours. And we established in vitro IAD model using LNCaP cells. Northern analyses were performed to determine the expression level of both PSA and Drg-1genes. Also, western analyses were performed to determine the protein level of proliferating cellular nuclear antigen and androgen receptor. RESULTS: Transcripts of Drg-1 were detected in both LNCaP and PC-3 cells but PSA was not expressed in PC-3 cells. The expression of Drg-1gene in LNCaP cells was up-regulated by 10(-8)M of DHT like PSA gene and down-regulated by 10(-7)M bicalutamide. In the treatment of intermittent androgen deprivation, the expression pattern of Drg-1was similar to that of PSA. However, up-regulation of PSA was detected earlier than of Drg-1. CONCLUSIONS: Based on observation, Drg-1 was up-regulated by androgen and down-regulated by anti-androgen. This suggests that Drg-1gene is useful for determining the androgen independency of prostate cancer during IAD.
Cell Line
;
Dihydrotestosterone
;
Humans
;
Prostate*
;
Prostatic Neoplasms*
;
Receptors, Androgen
;
Up-Regulation
3.A study on the satisfied degree of oral function in geriatric patients with the shortened dental arch.
Jae Sung CHOI ; Woo Jin KANG ; Moon Kyu CHUNG
The Journal of Korean Academy of Prosthodontics 1992;30(2):191-202
No abstract available.
Dental Arch*
;
Humans
4.Correction of cleft lip nasal deformity by intraoperative expansion of nasal tip skin.
Hee Jung HAM ; Dong Won CHOI ; Jin Sung KANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(4):785-793
No abstract available.
Cleft Lip*
;
Congenital Abnormalities*
;
Skin*
5.Clinical studies of aseptic meningitis.
Kang Woo PARK ; Dae Young CHOI ; Sung Won KIM
Journal of the Korean Pediatric Society 1991;34(10):1400-1408
No abstract available.
Meningitis, Aseptic*
6.An Experience with the Innervated Cross
Sung Won SOHN ; Hun Wook CHOI ; Chang Soo KANG
The Journal of the Korean Orthopaedic Association 1988;23(4):1183-1187
Sensation is the key element that allows the fingertip to participate effectively in virtually all hand functions. Therefore, it is very important to restore sensation as well as well padded, durable skin coverage following severe fingertip injuries. Many ingenious operations have been described to provide the fingertip with sensate coverage. Among them, the innervated cross-finger flap, reported by Cohen et al. in 1983, is very effective and successful in reconstruction of severe fingertip injuries, We report five cases of severe fingertip injuries treated with innervated cross-finger flap. The results are as follows : 1. The level of sensory return and the functional result is excellent in those fingertips reconstructed with the innervated cross-finger flap. 2. Mean time for flap detachment is 16 days post operative and local anesthesis at outpatient department is sufficient. 3. Four of five treated patients achieved excellent sensibility with measurable two-point discrimination(mean 5.0 mm) and ability to recongnize textures and objects.
Fingers
;
Hand
;
Humans
;
Outpatients
;
Sensation
;
Skin
7.A case of hyperimmunoglobulin E syndrome.
Myeong Cheol SHINN ; Sung Dong CHOI ; Byung Gyu SUH ; Jin Han KANG ; Joon Sung LEE
Journal of the Korean Pediatric Society 1991;34(2):292-298
No abstract available.
8.A Case of Renal Vein Thrombosis in a Patient with Lung and Uterine Cervical Cancer.
Sang In CHOI ; Seung Ok LEE ; Won KIM ; Sung Kwang PARK ; Sung Kyew KANG ; Sang Yong LEE
Korean Journal of Nephrology 1998;17(5):807-813
Thrombosis of one or both renal veins occurs in a variety of settings such as trauma, dehydration, extrinsic compression, nephrotic syndrome, pregnancy, oral contraceptives or invasion by tumor. Nephrotic syndrome and certain carcinomas seem to predispose to the development of renal vein thrombosis. The most common carcinoma which is associated with renal vein thrombosis is the renal cell carcinoma. But, renal vein thrombosis associated with tumor other than renal cell carcinoma is extremely rare. Our patient was diagnosed as lung and uterine cervical cancer by histologic examination. The patient complained of left flank pain. Abdominal CT scan shows the dilated left renal vein filled with hypodense material and parenchymal infarction on the left kidney. Renal arteriography shows cut-off sign on a branch of the left renal artery. Inferior venacavography revealed contrast-filling defect in the left renal vein. To our knowledge, renal vein thrombosis with lung and uterine cervical carcinoma is the first report in English literature. So, we have presented a rare case of a renal vein thrombosis in a patient with lung and uterine cervical cancer.
Angiography
;
Carcinoma, Renal Cell
;
Contraceptives, Oral
;
Dehydration
;
Flank Pain
;
Humans
;
Infarction
;
Kidney
;
Lung Neoplasms
;
Lung*
;
Nephrotic Syndrome
;
Pregnancy
;
Renal Artery
;
Renal Veins*
;
Thrombosis*
;
Tomography, X-Ray Computed
;
Uterine Cervical Neoplasms*
9.6 Cases of Intracranial Hemorrhage due to late Late Hemorrhage Disease of Infancy.
Sang Ho CHOI ; Jae You CHOI ; Jae Sung KIM ; Im Ju KANG
Journal of the Korean Pediatric Society 1988;31(1):106-112
No abstract available.
Hemorrhage*
;
Intracranial Hemorrhages*
10.MR Findings of Kallmann Syndrome.
Sung Mi KIM ; Jin Ok CHOI ; Kang Soo LEE ; See Sung CHOI
Journal of the Korean Radiological Society 2000;42(4):601-604
Kallman syndrome is characterised by hypogonadotrophic hypogonadism and anosmia. T1 weighted MR coronal images show the bilateral absence or hypoplasia of olfactory bulbs, tracts, and sulci. We report the MR findings of Kallmann syndrome and revew the literature.
Hypogonadism
;
Kallmann Syndrome*
;
Olfaction Disorders
;
Olfactory Bulb