• Korean Journal of Plant Taxonomy
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• v.38 no.4
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• pp.565-571
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• 2008

In the course of execution for Inventories and Management of Plant Resources of Korea, We found new habitats of 4 plant species which distribution ranges are obscure and/or extremely restricted. A subtropical fern distributed in Jeju-do, Woodwardia japonica (L. f.) Sm., was found in Mt. Gambang-san of Hampyeong-gun, Jeollanam-do. A saprophytic orchid, Galeola septentrionalis Reichb., was found in Mt. Ggachi-bong of Boseong-gun, Jeollanam-do. Peristrophe japonica (Thunb.) Bremek., known in Jeollanam-do, was newly found in Mt. Mudeung-san of Gwangju-si. Viburnum furcatum Blume mainly distributed in Jeju-do and Ulleung-do was found in Mt. Jabyeong-san of Gangneung-si, Gangwon-do.

• Korean journal of applied entomology
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• v.50 no.4
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• pp.279-282
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• 2011

A taxonomic review of Bolitotrogus kurosonis Miyatake 1964 is presented. B. kurosonis is a fungivorous tenebrionid beetle and is a rare inhabitant of fungi on deciduous trees (Quercus, Carpinus laxiflora, etc.) in Korea. Sporophores of Inonotus mikadoi (Lloyd) Imaz. was the obligate feeding and breeding sites for this species in Jeju-do. A description, an additional key to the Korean Bolitophagini, fungal host, photographs of adult, and illustrations of diagnostic characteristics are provided.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.13 no.5
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• pp.12-27
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• 2010

The purpose of this study is carried out to present the raw data for restoring and maintaining an urban stream by objective surveying and analysing about flora in Changwon stream and Nam stream, Changwon-si, Gyeongsangnam-do, Korea. The results are as follows. The numbers of vascular plants were summarized as 248 taxa; 71 families, 184 genera, 220 species, 26 varieties and 2 forma. The numbers of vascular plants by streams were 202 taxa in Changwon stream and 206 taxa in Nam stream. The endemic plant was Salix pseudolasiogyne. The rare plants designated by Korea Foret Service were 2 taxa; Aristolochia contorta and Koelreuteria paniculata. The specific plants by floristic region were 12 taxa; Aphananthe aspera, Artemisia selengensis, Indigofera pseudotinctoria and so forth. The naturalized plants were 37 taxa; Ailanthus altissima, Amaranthus patulus, Amorpha fruticosa and so forth. The invasive alien plants designated by Ministry of Environment were 4 taxa; Ambrosia artemisiifolia var. elatior, Aster pilosus, Rumex acetocella and Solanum carolinense. The UI (Urbanized Index) and NI (Naturalized Index) were 13.6% and 18.3% in Changwon stream and 13.6% and 17.9% in Nam stream.

• Journal of the korean society of oceanography
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• v.39 no.4
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• pp.207-211
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• 2004

We used long time series of hydrographic and biological variables to examine the ecosystem consequences of a rare, anomalous event in the south sea of Korea. The highest zooplankton biomass in 36 years of sampling occurred in April 1997. Zooplankton biomass exceeded 2 times than the long-term mean at 35% of the stations. Copepod abundance was low in April and June and also failed to show a seasonal peak in 1997. Mackerel (Scomber japonicus) catches were very low in spring 1997 and 1999, in spite of a positive correlation between zooplankton biomass and mackerel catches at lags of 0, 12 and 24 months. It was discussed that a high zooplankton biomass with low copepod abundance in April 1997 resulted from unusual high temperature and salps abundance. Water temperatures were ca. $2^{\circ}C$ higher than the long-term mean at the surface. Salps and doliolids (thaliaceans), especially the warm-water species Doliolum nationalis, dominated the zooplankton. An unusual incursion of the Tsushima Warm Current may have transported the thaliaceans into the area and/or produced favorable conditions for a bloom. This study suggested that taxonomic composition of zooplankton was important to decide mackerel catches.

• Archives of Craniofacial Surgery
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• v.16 no.1
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• pp.39-42
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• 2015

Actinomycosis is a subacute or chronic suppurative infection caused by Actinomyces species, which are anaerobic Gram-positive bacteria that normally colonize the human mouth and digestive and urogenital tracts. Cervicofacial actinomycosis is the most frequent clinical form of actinomycosis, and is associated with odontogenic infection. Characterized by an abscess and mandibular involvement with or without fistula, but the cervicofacial form of actinomycosis is often misdiagnosed because the presentation is not specific and because it can mimic numerous infectious and non-infectious diseases, including malignant tumors. We report a rare case of actinomycosis infection with coexisting submandibular sialolithiasis. The patient presented with a $1{\times}1cm$ abscess-like lesion below the lower lip. Punch biopsy of the lesion revealed atypical squamous cell proliferation with infiltrative growth, suggestive of squamous cell carcinoma. The patient underwent wide excision of this lesion, where the lesion was found to be an abscess formation with multiple submandibular sialolithiases. The surgical specimen was found to contain Actinomyces without any evidence of a malignant process. We assumed that associated predisposing factors such as poor oral hygiene may have caused a dehydrated condition of the oral cavity, leading to coexistence of actinomycosis and sialolithiasis.

• Journal of Yeungnam Medical Science
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• v.18 no.1
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• pp.138-143
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• 2001

In humans, echinococcal species produce cystic lesions primarily involving the liver and lung. Echinococcal infection is caused far more commonly by Echinococcus granulosa than by E. multilocularis, which accounts for less than 5 per cent of all cases of hydatid liver disease. Hydatid disease occurs principally in sheep grazing areas, particularly in the Australia, New Zealand, Greece, Yugoslavia, Middle East, and South American countries, but with increasing migration and traveling, this disease now has a worldwide distribution. This disease is rare in Korea and only few cases have been reported. This is a clinical case report of hydatid cyst of liver caused by Echinococcus granulosus in a 52-year-old man who had been dispatched in the Vietnam from 1966 to 1968.

• Journal of Mycology and Infection
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• v.23 no.4
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• pp.105-110
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• 2018

Background: Otomycosis is a fungal infection that comprises 7~10% of outer ear infections. Although the occurrence is higher in humid climates, relatively few studies have investigated otomycosis occurrences in humid environments. While recurrent chronic otitis media discharge in the ear creates a milieu in which otomycosis is likely to occur, investigations of otomycosis co-occurring with chronic otitis media have been rare. Objective: To examine the characteristics of patients with otomycosis co-occurring with chronic otitis media and identify causative fungi. Methods: The study included 60 patients with chronic otitis media who presented typical otomycosis findings in the outer ear canal and the presence of fungi. Patients were treated in the department of otolaryngology, Daegu Catholic University Medical Center, between July 2011 and June 2018. Results: The mean patient age was 57.77 years, and our study included 20 men and 40 women (p=0.010). The lesion was on the right in 39 patients and on the left in 21 (p=0.020). Ear discharge was the most common chief complaint at diagnosis. Of the 54 patients over age 19, 10 had diabetes (18.5%). Aspergillus was causative in 29 patients and Candida in 31. Aspergillus niger was identified in 15 patients, Aspergillus sp. in 14, Candida parapsilosis in 12, Candida sp. in six, and Candida albicans in five. Conclusion: Otomycosis and chronic otitis media co-occurrences increase with age. The Aspergillus and Candida genera were similar in proportion. A. niger was the most common Aspergillus species, while C. parapsilosis was the most common Candida.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.04a
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• pp.117-117
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• 2019

Kirengeshoma koreana Nakai (K. koreana)was Saxifragaceae and rare plants in Korea, which is classified as an Critically Endangered (CR) species in Korea. Therefore, most of the studies on it were ecological and taxonomic, and there are no studies on biological activity. In this study, we evaluated the whitening activity of K. koreana extract (KKE). Melanogenesis Inhibitory effects were demonstrated by western-bot and RT-PCR for the effects of KKE on MITF, tyrosinase, TRP-1 and TRP-2 in IBMX-treated B16F10 melanoma cells. IBMX were reported as melanin synthesis enhancers. It could increase intracellular melanin synthesis by activation of the microphthalmia-associated transcription factor (MITF) signaling pathway. KKE showed no cytotoxicity at B16F10. In addition, KKE effectively inhibited the protein and mRNA levels of MITF, tyrosinase, TRP-1 and TRP-2. In conclusion, KKE inhibited melanin synthesis by inhibiting the expression of MITF and its downstream pathways tyrosinase, TRP-1 and TRP-2. Therefore, it was confirmed that K. koreana is a valuable resource for functional cosmetic and biomaterials.

• Journal of Veterinary Clinics
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• v.40 no.1
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• pp.73-77
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• 2023

Rectal prolapse is encountered in all domestic animal species but clinical report regarding the condition in the elk is limited. A 10-year-old elk bull weighing 400 kg was referred to the Large Animal Hospital of Kyungpook National University with clinical signs including intermittent tenesmus related to rectal prolapse and anorexia for the previous 5 days. Type II rectal prolapse was diagnosed based on the history and clinical signs. An emergency resection and anastomosis including a purse string suture was performed under general intravenous (IV) anesthesia in field to prevent injury of the patient and the staff. The patient recovered uneventfully after the surgery without excitement. A systemic antibiotic and an anti-inflammatory drug were given to prevent postoperative complication and relieve pain. The follow up on the patient after 4 weeks of the surgery showed that the prolapse recurred due to intermittent straining after 2 weeks of the surgery. The patient was on the glucocorticoid for the following 3 days but was finally euthanized owing to the exacerbation of the prolapse 1 week after the recurrence. This report describes a rare case of rectal prolapse in an elk bull and the clinical outcome of the surgical repair in detail.

• IMMUNE NETWORK
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• v.21 no.2
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• pp.12.1-12.17
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• 2021

Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Since the emergence of SARS-CoV-2 in the human population in late 2019, it has spread on an unprecedented scale worldwide leading to the first coronavirus pandemic. SARS-CoV-2 infection results in a wide range of clinical manifestations from asymptomatic to fatal cases. Although intensive research has been undertaken to increase understanding of the complex biology of SARS-CoV-2 infection, the detailed mechanisms underpinning the severe pathogenesis and interactions between the virus and the host immune response are not well understood. Thus, the development of appropriate animal models that recapitulate human clinical manifestations and immune responses against SARS-CoV-2 is crucial. Although many animal models are currently available for the study of SARS-CoV-2 infection, each has distinct advantages and disadvantages, and some models show variable results between and within species. Thus, we aim to discuss the different animal models, including mice, hamsters, ferrets, and non-human primates, employed for SARS-CoV-2 infection studies and outline their individual strengths and limitations for use in studies aimed at increasing understanding of coronavirus pathogenesis. Moreover, a significant advantage of these animal models is that they can be tailored, providing unique options specific to the scientific goals of each researcher.