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A Taxonomic Study of the Rivellia syngenesiae Species Group(Diptera: Platystomatidae) in Korea
Byun, Hye-Woo,Suh, Sang-Jae,Han, Ho-Yeon,Kwon, Yong-Jung 한국곤충학회 1998 Entomological Research Vol.28 No.4
The Rivellia syngenesiae species group from Korea is taxonomically studied. As a result, The following species are recognized: R. alini Enderlein, R. mandschurica Hennig, R. parilis Frey, R. tridentata Byun et Suh sp. nov., R. harai Byun et Suh sp. nov., and R. longialata Byun et Suh sp. novo Among these species, only R. mandschurica has been previously known from Korea. These six species belong to the R. syngenesiae species group, which can be characterized by the base of apodemal lobe distinctly separated from imaginary line connecting the bases of lateral arms when viewed from ventrally. A key, descriptions, and illustrations are provided for these species. In addition, we designated a lectotype for R. charbinensis Enderlein, which was examined for a comparison with the closely related R. parilis.
Taxonomic Review of the Genus Trigonospila Pokorny (Diptera: Tachinidae: Blondeliini) in Korea
Byun, Hye-Woo,Han, Ho-Yeon The Korean Society of Systematic Zoology 2010 Korean Journal of Systematic Zoology Special Issue Vol.26 No.3
As a result of a taxonomic review of the tachinid genus Trigonospila Porkorny in Korea, we recognized two species: T. ludio (Zetterstedt) and T. transvittata (Pandell$\acute{e}$). The former species is reported for the first time in Korea. We here provide a key to the Korean species, redescriptions, photographs and illustrations.
Lixophaga Townsend (Diptera: Tachinidae: Blondeliini), a newly recorded parasitoid taxon in Korea
Hye-Woo Byun,한호연 한국응용곤충학회 2011 Journal of Asia-Pacific Entomology Vol.14 No.1
A tachinid parasitoid genus, Lixophaga Townsend, is reported for the first time in Korea. This mainly New World genus currently includes four Palaearctic species, of which L. cinctella (Mesnil) and L. latigena Shima are recognized in Korea. We here provide a taxonomic key, descriptions and photographs as well as detailed illustrations of male genitalic structures.
Taxonomic Review of the Genus Trigonospila Pokorny (Diptera: Tachinidae: Blondeliini) in Korea
Hye-Woo Byun,Ho-Yeon Han 한국동물분류학회 2010 Animal Systematics, Evolution and Diversity Vol.26 No.3
As a result of a taxonomic review of the tachinid genus Trigonospila Porkorny in Korea, we recognized two species: T. ludio Zetterstedt) and T. transvittata (Pandelle). The former species is reported for the first time in Korea. We here provide a key to the Korean species, redescriptions, photographs and illustrations.
Byun, Hye-Woo,Suh, Sang-Jae,Han, Ho-Yeon,Kwon, Yong-Jung Korean Society of Applied Entomology 2001 Journal of Asia-Pacific Entomology Vol.4 No.2
As a result of taxonomic study of the Rivellia basilaris and its allied species in Korea, the following five species are recognized: R. basilaris(Wiedemann), R. flaviventris Hendel, R. nigroapicalis Byun et Suh, sp. nov., R. cestoventris Byun et Suh, sp. nov., and R. apicalis Hendel. None of the above species were previously reported in Korea. We provide descriptions and illustrations of these five species as well as a key to all 11 Korean Rivellia species. We also analysed interspecific relationships among Korean Rivellia species using cladistic methods. We propose to recognize R. basilaris species-group based on the presence of two lateral occipital setae as a synpomorphy. The monophyly of the previously recognized R. syngenesiae species-group is also suported by a single synapomorphy (outer surstylus extending beyond apex of cercus).
A case of acquired bilateral telangiectatic macules
( Hye Jin Lee ),( Ju Yun Woo ),( Ji Yeon Byun ),( Hae Young Choi ),( You Won Choi ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
Acquired bilateral telangiectatic macules is an acquired pigmentary disorder that was first described in a case report, 2014. The clinical features are irregular and dark to brown telangiectatic macules on both upper arms mostly in men during middle age (age 32~50 years old). Histologically, it shows telangiectasia, capillary proloferation in the upper dermis, basal hyperpigmentation and increased melanogenic activity without mast cell infiltration, epidermal atropy and rete ridge elongation. A 57 year-old men presented with asymptomatic brownish macules on outer aspects of both upper arm for 3 years. He had been treated by topical antifungal agent at local clinic but the lesions were not improved. A skin biopsy showed dermal fibrosis with small dilated capillaries and increase of basal pigmentation. But There were no significant mast cell infiltration, epidermal thickness change and rete ridge elongation. Herein, we report a case of acquired biltaeral telangiectatic macules.
Byun, Eui-Baek,Kim, Hye-Min,Song, Ha-Yeon,Kim, Woo Sik Elsevier 2019 Food and chemical toxicology Vol.127 No.-
<P><B>Abstract</B></P> <P>Hesperidin is a flavonoid which occurs in citrus fruits. Hesperidin was gamma-irradiated at doses of 0, 30, 70, and 150 kGy. Gamma irradiation induced a decreased hesperidin peak, and a new radiolytic peak that gradually increased up to 150 kGy. The new radiolytic peak was fractionated, and the fractionated hesperidin derivative was used for subsequent experiments. Hesperidin gamma-irradiated at 150 kGy was toxic toward B16BL6 cells, but not toward bone marrow-derived macrophages. This cytotoxicity was exerted via induction of apoptosis, as reflected by the high population of double-positive cells, increased sub-G1 phase cells, depolarization of matrix metalloproteinase, production of reactive oxygen species, weakness of cell adhesion, changes in cell morphology, and inhibition of B16BL6 cell migration. Furthermore, 150 kGy gamma-irradiated hesperidin decreased the expression of Bcl-2 and pro-caspases-3 and -9, increased the expression of Bax and cytosolic cytochrome <I>c</I>, and increased the cleavage of poly ADP ribose polymerase. <I>In vitro</I> mechanistic study revealed that 150 kGy gamma-irradiated hesperidin achieved significantly greater inhibition of lung metastasis and growth of melanoma B16BL6 cells in C57BL/6 mice than non-irradiated intact hesperidin did. These results suggest that the structural modification of hesperidin induced by gamma irradiation could facilitate the development of anti-cancer drugs.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Gamma irradiation induced structural transformation of hesperidin. </LI> <LI> Gamma-irradiated hesperidin effectively induced apoptosis than unirradiated-hesperidin in B16BL6 melanoma cells through mitochondrial pathway. </LI> <LI> Gamma-irradiated hesperidin exhibited preventive and therapeutic effects in lung metastasis and tumor growth mice model. </LI> <LI> Gamma-irradiated hesperidin might be a candidate for cancer therapy. </LI> </UL> </P>