A newly recorded species, Nereiphylla hera Kato and Mawatari, 1999 which was originally described from northern Japan, was collected from East Sea in Korea. Our Korean materials of N. hera are distinguished from it congeners by the following characteristics that agree well with the original description of the species: the tentacular cirri are flat and spatulate with a narrow and distinct tip, reaching to segment 4-6, and boarder than their cirrophores; the parapodia possess elongated dorsal cirri. We provide a key for distinguishing the species of genus Nereiphylla from Korean waters.
A newly recorded glycerid polychaete collected from mud of the tidal flat in the southwestern coast of Korea is identified as Glycera fallax Quatrefages, 1850 based on the morphologies of papaillae and ailerons on proboscis, parapodial postsetal lobes, and branchiae. In this paper, we provide a detailed description and illustration of Korean materials of this species and a key to the species of the genus Glycera from Korean waters.
The genus Halectinosoma Vervoort, 1962 is first reported from Korean waters by the discovery of H. perforatum Itô, 1981. This species, previously recorded only from Japan, is collected from the sandy beach on the south coast of Korea, and is well distinguished from other congeners by the combination of following morphological characteristics: the elongate caudal ramus; the remarkably bilobated exopod of female P5; the small innermost seta on the distal margin of female P5 exopod; the presence of three setae on the distal exopodal segment in P4; and the presence of scale-like spinules on the ventral surfaces of urosomite. We herein provide detailed description and illustrations of this species.
Newly recorded cyproideid species of the genus Terepeltopes was collected from Korean waters. The monotyptic genus Terepeltopes erected with T. dolichorhunia Hirayama, 1983 was only known to be found at West Kyushu, Japan. In this study, the family Cyproideidae Barnard, 1974 is first recorded from Korea by the discovery of T. dolichorhunia, and we provide description and illustrations of this species.
Despite the worldwide distributions of genus Lepidepecreum and the previous reports from China and Japan, this genus has not yet been recorded in Korean waters. In this study, Korean materials of lysianassid amphipods are assigned readily to the genus Lepidepecreum and identified as L. vitjazi Gurjanova, 1962 based on the following features: well-developed dorsal keels of the pleonite 3 and urosimite 1; unconcaved palmer margin of ganthopod 1; hooked locking spines of propodus on pereopods 3 and 4; and the shape of coxa 4. We also provide the description and illustrations of this species.
Two newly recorded opheliid polychaetes, Armandia amakusaensis Saito, Tamaki and Imajima, 2000 and Polyophthalmus qingdaoensis Purschke, Ding and Müller, 1995, from Korean waters are reported with the descriptions and illustrations. Armandia amakusaensis can be clearly distinguished from its congeners by the following characteristics: the prostomium has 2 or 3 subdermal eyespots; total number of setigers are 29; the branchiae are present on the setigers from the setiger 2 to the second or third from the last setiger; the lateral eyespots beginning from the setiger 7 are composed of 11 pairs; the anal funnel has 8~11 papillae and a long cirrus. Polyophthalmus qingdaoensis has the distinguishable characteristics from its relatives as follows: the prostomium has a brain bearing dark pigment-spots; the lateral eyespots are distinct; the body has only dark pigment-streaks on dorsal side. We also provide the keys for distinguishing the species of the genera Armandia and Polyophthalmus from Korean waters.
The purpose of this study is to observe the effect of elasticity of taping on ankle muscles’activity and endurance after plyometric training that easily causes ankle injury, and provide baseline data for physical therapy intervention methods. The study subjects are 24 male students in their 20s who attend N University in Choongnam. They were divided into three groups; 8 subjects in the elastic taping group, 8 in the non-elastic taping group, and 8 in the non-taping group(control group). They had plyometric training for 6 weeks. After the training, this study measured their maximum voluntary isometric contraction(MVIC) and muscle endurance of the muscles around ankle joint. The experiment result is as follows. After the training, all three groups showed improvement in muscle strength and endurance. The elastic taping group showed insignificant improvement in muscle strength but significant increase in muscle endurance in plantarflexion. In dorsiflexion, both muscle strength and endurance increased significantly. The non-elastic taping group showed insignificant improvement in muscle strength but significant increase in muscle endurance in plantarflexion. Taping during plyometric training had a little or insignificant effect on muscle endurance and strength compared to the non-taping group.
Backgoound : This study was conducted to evaluate the quality variation of Ixeris dentata on the antioxidant contents and antioxidant activities according to the different producing area. Methods and Results : The samples were extracted with 70 % EtOH and then analyzed for total flavonoid contents, polypenol contents, DPPH radical scavenging activity, and ABTS radical scavenging activity. Luteinol 7-O-β-D-glucoside, an index component of the Ixeris dentata, was analyzed by HPLC. The leafs of Ixeris dentata in Jinan had the highest concentration of polyphenols (23.91 ㎎/g), followed by Jinbu (22.63 ㎎/g) and Eumseong (21.36 ㎎/g). Flavonoid content was highest in Jinan (15.27 ㎎/g), but there was no significant difference between Jinbu (14.05 ㎎/g) and Eumseong (13.99 ㎎/g). The contents of luteinol 7-O-β-D-glucoside were confirmed in Jinan (0.68%), Jinbu (0.49%) and Eumseong (0.36%), respectively. Conclusion : The comparison of antioxidant contents and antioxidant activities of Ixeris dentata according to the different producing area, Jinan was had the highest concentration, followed by Jinbu and Eumseong. Our results showed that the content of luteoline-7-D-glucoside varied among the different producing area.
Herb extracts commercially used in Korea were screened for PPAR-γ agonist test and α-glucosidase inhibition assay. Total 16 herb plants had a PPAR-γ agonist activity. Specially, Alisma orientale Juz (108.41%), Ephedra sinica (98.22%), Sasa japonica Makino var. purpurascens Nakai (140.68%), Astragalus membranaceus Bunge (106.79%) and Cnidium officinale Makino (113.00%) showed high PPAR-γ agonist activity rate compared with rosiglitazone's (167.46%). And Cornus officinalis S. et Z. (90.3%), Cinnamomum cassia Blume (89.2%), Psoralea corylifolia L. (89.8%), Paeonia japonica (Makino) Miyabe (92.4%) and Paeonia suffruticosa Andr (93.2%), showed high α-glucosidase inhibition rates. These results support previous reports of the efficacy of Oriental medicinal plants used for diabetes mellitus.