1.Olfactory and Gustatory Dysfunction in a COVID-19 Patient with Ankylosing Spondylitis Treated with Etanercept: Case Report
Journal of Korean Medical Science 2020;35(21):e201-
The neurologic manifestations concerning coronavirus disease 2019 (COVID-19) are highly penetrated. Anosmia and ageusia are one of the common acute neurologic symptoms, which develop in the early stage of COVID-19. However, it is not reported that how immunosuppressive agents affect these symptoms. We report olfactory and gustatory dysfunctions in a patient with ankylosing spondylitis (AS) treated with etanercept during COVID-19. A 53-year-old female showing AS controlled with tumor necrosis factor-α inhibitor, etanercept, had been diagnosed with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, presenting cough and rhinorrhea. One month after diagnosis, she complained about hyposmia and hypogeusia two days before the seronegative conversion of SARS-CoV-2, which were confirmed by a neurological examination. We speculate that the etanercept may have delayed the development of olfactory and gustatory dysfunction in the patient.
2.Kangwon-do with the metacercariae of Metagonimus yokogawai.
Woon Mok SOHN ; Sung Tae HONG ; Jong Yil CHAI ; Soon Hyung LEE
The Korean Journal of Parasitology 1990;28(4):253-255
This study was performed to observe the infection status of sweetfish, caught from Kwangjung-stream and Namdae-stream in Yangyang-gun, Kangwon-do in August 1989, with the metacercariae of Metagonimus yokogawai. All of 28 sweetfish from Kwangjung-stream were infected with the metacercariae of M. yokogawai. The number of metacercariae in a fish ranged 89-521(224 on average), and the number of larvae/g of flesh was 12 approximately 55 (22 on average). On the other hand, no metacercariae were detected in the fish from Namdae-stream. It has been confirmed that the Kwangjung-stream in Yangyang-gun, Kangwon-do is one of the endemic foci of metagonimiasis in Korea.
English-Abstract
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Fish-Diseases-parasitology
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Heterophyidae-isolation-and-purification
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Korea-epidemiology
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Trematode-Infections-parasitology
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*Fish-Diseases-epidemiology
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*Fresh-Water
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*Heterophyidae-
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*Trematode-Infections-epidemiology
3.Kangwon-do with the metacercariae of Metagonimus yokogawai.
Woon Mok SOHN ; Sung Tae HONG ; Jong Yil CHAI ; Soon Hyung LEE
The Korean Journal of Parasitology 1990;28(4):253-255
This study was performed to observe the infection status of sweetfish, caught from Kwangjung-stream and Namdae-stream in Yangyang-gun, Kangwon-do in August 1989, with the metacercariae of Metagonimus yokogawai. All of 28 sweetfish from Kwangjung-stream were infected with the metacercariae of M. yokogawai. The number of metacercariae in a fish ranged 89-521(224 on average), and the number of larvae/g of flesh was 12 approximately 55 (22 on average). On the other hand, no metacercariae were detected in the fish from Namdae-stream. It has been confirmed that the Kwangjung-stream in Yangyang-gun, Kangwon-do is one of the endemic foci of metagonimiasis in Korea.
English-Abstract
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Fish-Diseases-parasitology
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Heterophyidae-isolation-and-purification
;
Korea-epidemiology
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Trematode-Infections-parasitology
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*Fish-Diseases-epidemiology
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*Fresh-Water
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*Heterophyidae-
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*Trematode-Infections-epidemiology
4.Sequence comparisons of 28S ribosomal DNA and mitochondrial cytochrome c oxidase subunit I of Metagonimus yokogawai, M. takahashii and M. miyatai.
Soo Ung LEE ; Sun HUH ; Woon Mok SOHN ; Jong Yil CHAI
The Korean Journal of Parasitology 2004;42(3):129-135
We compared the DNA sequences of the genus Metagonimus: M. yokogawai, M. takahashii, and M. miyatai. We obtained 28S D1 ribosomal DNA (rDNA) and mitochondrial cytochrome c oxidase subunit I (mtCOI) fragments from the adult worms by PCR, that were cloned and sequenced. Phylogenetic relationships inferred from the nucleotide sequences of the 28S D1 rDNA and mtCOI gene. M. takahashii and M. yokogawai are placed in the same clade supported by DNA sequence and phylogenic tree analysis in 28S D1 rDNA and mtCOI gene region. The above findings tell us that M. takahashii is closer to M. yokogawai than to M. miyatai genetically. This phylogenetic data also support the nomination of M. miyatai as a separate species.
Animals
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Base Sequence
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Comparative Study
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DNA, Helminth/*chemistry/genetics
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DNA, Mitochondrial/chemistry/genetics
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DNA, Ribosomal/chemistry/genetics
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Electron Transport Complex IV/chemistry/*genetics
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Heterophyidae/classification/enzymology/*genetics
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Molecular Sequence Data
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Phylogeny
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RNA, Ribosomal, 28S/chemistry/*genetics
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Research Support, Non-U.S. Gov't
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Sequence Alignment
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Trematode Infections/*parasitology
5.Invasive carcinoma of uterine cervix: Clinical studies on 178 cases of radical hysterectomy.
Jong Woo SOHN ; Mi Kyung JANG ; Seon Kyung LEE ; Jung Eun MOK
Korean Journal of Obstetrics and Gynecology 1993;36(11):3734-3749
No abstract available.
Cervix Uteri*
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Female
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Hysterectomy*
6.Surface ultrastructure of Pygidiopsis summa (Digenea: Heterophyidae) adult flukes.
Jong Yil CHAI ; Woon Mok SOHN ; Sung Yil CHOI ; Soon Hyung LEE
The Korean Journal of Parasitology 2002;40(3):107-112
A scanning electron microscopic study was performed on the surface ultrastructure of Pygidiopsis summa (Digenea: Heterophyidae) adults. Metacercariae were collected from gills and muscles of mullets (Mugil cephalus) caught in a known endemic area, and adult flukes were harvested from dogs after 8 weeks of experimental infection. The worm was calabash form with its posterior part broader than the anterior part. Tegumental spines were densely distributed over the body surface, except on the suckers and genital apparatus, and around the excretory pore. Well differentiated spines were observed on the anterior half of the body, with 14-16 tips ventrally, and 19-20 tips dorsally. On the oral sucker, three pairs of type I sensory papillae (uni-ciliated knob-like swellings) and one pair of type II sensory papillae (aciliated round-swellings) were observed on the anterior and posterior parts of the lip, respectively. On the lip of the ventral sucker, one pair of type II sensory papillae was distributed only on its posterior part. Sperms were seen emerging from or entering into the genital apparatus. The results showed that the surface ultrastructure of P. summa was unique among the heterophyid trematodes, especially in digitation of tegumental spines and in distribution of sensory papillae on oral and ventral suckers.
Animals
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Dogs
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Heterophyidae/*ultrastructure
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Microscopy, Electron, Scanning
7.X-linked Charcot-Marie-Tooth disease case with a novel missense mutation in GJB1 gene.
Journal of Genetic Medicine 2018;15(2):107-109
X-linked Charcot-Marie-Tooth disease type 1 (CMTX1) is caused by the mutation in GJB1 gene, characterized by the transient central nervous system involvement and long standing peripheral polyneuropathy which does not fulfill the criteria of demyelination or axonopathy. We describe a 37-year-old man with progressive bilateral leg weakness since his early teen. He suffered transient right hemiparesis, followed by quadriparesis at 14 years of age. When we examined him at 37 years of age, he presented a distal muscle weakness on lower extremities with a sensory symptom. The nerve conduction study demonstrated a motor conduction velocity between 26 and 49 m/s. The whole exome sequencing revealed a novel variant c.136 G>A in GJB1. This report will raise awareness in this rare disease, which is frequently misdiagnosed early in its course.
Adolescent
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Adult
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Central Nervous System
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Charcot-Marie-Tooth Disease*
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Connexins
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Demyelinating Diseases
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Exome
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Humans
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Leg
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Lower Extremity
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Muscle Weakness
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Mutation, Missense*
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Neural Conduction
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Paresis
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Polyneuropathies
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Quadriplegia
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Rare Diseases
8.Presenting Internuclear Ophthalmoplegia with Peripheral Type Facial Palsy: Seven-and-a-Half Syndrome
Journal of the Korean Neurological Association 2019;37(1):66-68
A 49-year-old male presented with horizontal binocular diplopia without facial pain or skin lesion. Limitation of medial gaze in the left eye was revealed on neurological examination, which is accompanied by peripheral facial nerve palsy ipsilaterally. The diagnosis had been made based on the diffusion restriction lesion of left pontine tegmentum. We may denominate a “seven-and-a-half syndrome” and clinician should maintain a high level of awareness of the various syndromes associated with pontine lesions.
Diagnosis
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Diffusion
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Diplopia
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Facial Nerve
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Facial Pain
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Facial Paralysis
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Humans
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Male
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Middle Aged
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Neurologic Examination
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Ocular Motility Disorders
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Paralysis
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Pontine Tegmentum
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Skin
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Telescopes
9.Pathologically and Genetically Diagnosed Subclinical Symptomatic Duchenne Muscular Dystrophy Carrier: Broadened Spectrum of Clinical Phenotype
Journal of the Korean Neurological Association 2021;39(2):85-88
A 29-year-old female presented with an elevated level of serum creatine kinase without subjective weakness. Neurologic examination showed the subtle motor weakness of the right arm. Muscle biopsy showed dystrophic changes and a mosaic pattern of dystrophin expression. The diagnosis was confirmed by multiplex ligation-dependent probe amplification and whole-exome sequencing, revealing heterozygous deletion of exon 44 in the DMD gene. Here, we introduce a subclinical symptomatic Duchenne muscular dystrophy carrier, which broadens the clinical spectrum of phenotype.
10.A case of mild CADASIL patient with a novel heterozygous NOTCH3 variant
WooChan CHOI ; Yang-Ha HWANG ; Jong-Mok LEE
Journal of Genetic Medicine 2022;19(1):38-41
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a single-gene disease caused by mutations in the neurogenic locus notch homolog protein 3 (NOTCH3) gene. The spectrum of clinical manifestations is broad, ranging from asymptomatic to typical ischemic stroke, and mainly depends on the location of the mutations. We describe the case of a 76-year-old female without apparent neurological deficits. However, brain magnetic resonance imaging revealed confluent lesions in the white matter. Direct sequencing of the NOTCH3 gene revealed a novel pathogenic mutation, c.811T>A, which results in a mild phenotype. Therefore, this report will expand the current knowledge in regards to the mutations that can cause CADASIL.