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A new record of the genus Drepanepteryx (Neuroptera: Hemerobiidae) from Korea
Seulki Kim,Soowon Cho 한국응용곤충학회 2015 한국응용곤충학회 학술대회논문집 Vol.2015 No.04
The Genus Drepanepteryx Leach, 1815 and Drepanepteryx phalaenoides (Linné), 1758 (Neuroptera:Hemerobiidae) are newly reported to Korea. Only one species, Neuronema albostigma have been reported in Korea as a species of Drepanepteryginae. In this study we report another species, Drepanepteryx phalaenoides and provide photos of adult and male genitalia based the specimen examined.
Description of spongilla fly, Sisyra nikkoana (Neuroptera: Sisyridae)
Seulki Kim,Soowon Cho 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.10
The family Sisyridae is very unique in that their larvae are aquatic and feed on sponges. The family has not been described in Korea until one species, Sisyra nikkoana (Navas), of Sisyridae was reported in the Illustrated Book of Aquatic Invertebrates in Agricultural Ecosystem (Rural Development Administration, 2008). However, this short description includes a misidentified adult image, and here we provide its full description in morphology with its wing pattern and male genitalia, as well as its COI barcoding information. We suggest its Korean name, 해면풀잠자리(해면풀잠자리과) as they feed on sponges.
Italochrysa nigrovenosa (Neuroptera:Chrysopidae) new to Korea.
Seulki Kim,Soowon Cho 한국응용곤충학회 2012 한국응용곤충학회 학술대회논문집 Vol.2012 No.10
Study of the Korean Chrysopidae has been scarce and only 11 species in 6 genera have been recorded so far(Checklist of Korean Insect, 2010). Genus Italochrysa has been a monotypic genus in Korea with I. japonica. Here we report Italochrysa nigrovenosa as another species of Italochrysa found in Korea. Images of adult and it’s genitalia information are provided.
Seulki Kim,Soowon Cho 한국응용곤충학회 2016 한국응용곤충학회 학술대회논문집 Vol.2016 No.04
Hemerobius contumax Tjeder, 1932 is a well known species of Hemerobiidae (Neuroptera) in Europe and Middle East countries, but has never been found in Asia. In Korea, a total of eight hemerobiid species have been recorded including the genus Hemerobius. So far only two species, Hemerobius humulinus and Hemerobius harmandinus are reported. Recently we collected another species of which the specific identity is in question: morphologically very similar to Hemerobius contumax but with c.a. 5% difference in COI barcode sequences. With 5% genetic difference, it may be easily considered as a different species from H. contumax. However, the adult image from the specimen sequenced for H. contumax found in the BOLD site is morphologically slightly off from the usual H. contumax, and there is still an investigation needed to confirm its specific identity. In any case, here we provide a brief description, photos of adult and male genitalia and DNA barcode sequence based the specimen examined.
Two undescribed species of Hemerobius and Micromus (Neuroptera:Hemerobiidae) new to Korea.
Seulki Kim,Soowon Cho 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.10
Study of the Korean Hemerobiidae has been so scarce that only three species in two genera were recorded in the list of insects in Korea (1994). Here we report two undescribed species, Hemerobius harmandinus and Micromus variegatus, new to Korea. Descriptions and images of the adults and their genitalia are provided.
Undescribed species, Micromus angulatus (Neuroptera:Hemerobiidae) new to Korea
Seulki Kim,Soowon Cho 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.05
Study of the Korean Hemerobiidae has been so scarce that only three species in two genera were recorded in Korea. Here we report an undescribed species, Micromus angulatus, new to Korea. A brief description and images of the wing pattern, and adult and genitalia of both sexes are provided.
Lee, Seulki,Cho, Young Youn,Cho, Eun Ju,Yu, Su Jong,Lee, Jeong-Hoon,Yoon, Jung-Hwan,Kim, Yoon Jun UNKNOWN 2018 INTERNATIONAL JOURNAL OF MOLECULAR MEDICINE Vol.42 No.5
<P>Sorafenib has been approved for the treatment of advanced stage hepatocellular carcinoma but has limited efficacy. Ursodeoxycholic acid exerts cytoprotective activities in hepatocytes and is believed to suppress tumorigenesis through cell cycle arrest and induction of apoptosis. The present study examined whether co-treatment with ursodeoxycholic acid has a synergistic effect on the antitumor activity of sorafenib in hepatocellular carcinoma cells. Notably, co-treatment with both agents more effectively inhibited cell proliferation than sorafenib or ursodeoxycholic acid alone. Furthermore, co-treatment inhibited the phosphorylation of signal transducer and activator of transcription 3 (STAT3) and activated extracellular signal-regulated kinase (ERK), a mitogen-activated protein kinase, accompanied by excessive intracellular reactive oxygen species generation in hepatocellular carcinoma cells. Thus, chemotherapy with sorafenib and ursodeoxycholic combination may be efficacious in hepatocellular carcinoma by inhibiting cell proliferation and inducing apoptosis through reactive oxygen species-dependent activation of ERK and dephosphorylation of STAT3. The present findings may represent a promising therapeutic strategy for patients with advanced hepatocellular carcinoma.</P>