이진 교수

Pituitary adenylate cyclase-activating polypeptide (PACAP), a novel neuropeptide with considerable homology to vasoactive intestinal peptide and GH-releasing hormone, exists in two biologically active forms, PACAP-38 and -27. The presence of PACAP in the ovary has been demonstrated, where it stimulates steroidogenesis and cAMP accumulation in cultured granulosa cells. In the present study, gonadotropin regulation of PACAP gene expression was examined in PMSG/human (h)CG-treated immature rat ovar

To study the effects of decreased amounts or absence of aldosterone on development and endocrine function, we have disrupted the mouse gene, Cyp11b2, coding for aldosterone synthase (AS) by replacing its first two exons with sequences coding for enhanced green fluorescent protein. The null pups fail to thrive postnatally, and about 30% die between d 7 and 28. Aldosterone in plasma and AS mRNA in adrenal glands are undetectable in the null mice. Adult AS-null mice are small, weigh 75% of wild typ

Among 67 cases of AIP, either IgG or IgG4 was elevated in 76% of patients, and 14 patients (21%) had other organ involvement. New Korean diagnostic criteria are useful for diagnosis of AIP.

This Special Issue of “TikTok and Social Movements” emerges from an attempt to map out the landscape of social movements happening on TikTok, drawing from the online symposium “TikTok and Social Movements” hosted in September 2021 by the TikTok Cultures Research Network, a research portal for interdisciplinary scholarship on TikTok cultures. The recent growing popularity of TikTok has transformed the cultures and practices of social movements worldwide. Through the platform’s participatory affor

In tandem with the increasing role of Influencers in culture and commerce, Influencers’ advertorial disclosures have become controversial in many countries, including South Korea. In August 2020, under the accusations by tabloids and other YouTubers, several famous Influencers were embroiled in the “backdoor advertising scandal,” wherein Influencers deftly advertise products in exchange for a significant amount of money from sponsoring companies, without any notice to followers. This article foc

Tooth development and regeneration occur through reciprocal interactions between epithelial and ectodermal mesenchymal stem cells. However, the current studies on tooth development are limited, since epithelial stem cells are relatively difficult to obtain and maintain. Human embryonic stem cells (hESCs) and induced pluripotent stem cells (hiPSCs) may be alternative options for epithelial cell sources. To differentiate hESCs/hiPSCs into dental epithelial-like stem cells, this study investigated

Signaled in its reputation as a “hookup app” or “sex app,” the mobile dating app Tinder has been accused of having ignited “hookup culture” associated with superficiality and sexual innuendo. However, little is known about how Tinder has obtained this notoriety and what Tinder is actually responsible for. This study analyzes talks about Tinder on Reddit (/r/Tinder), as part of Tinder culture where Tinder discourse and norms are established and shared in relation to broader youth pairing culture.

We examine how TikTok expanded into the South Korean landscape by utilizing K-pop as a vehicle, thus demonstrating the theory of ‘platformed glocalization’. After several failed attempts to enter the Korean market – having been stigmatized as a ‘vulgar Chinese app’ – TikTok Korea eventually launched a successful event series known as ‘TikTok Stage’ to leverage on the gaps in the K-pop market arising from the COVID-19 pandemic. While ‘platformization’ has been studied as the pervasive reach and i

In a canine immediate extraction socket model, both test and control implants demonstrated comparable implant stability and bone-to-implant contact. Bone ingrowth was evident within the tantalum porous section of the test implants during the early healing.

In this study, the effectiveness of the phase-based method to calculate latency was confirmed. In infants, the rapid decrease of P1 latency may be due to the progressive maturation of conduction time in the afferent visual pathways, with the development of adult levels of phase-based calculated latency being due to the maturation of later cortical processing in infants.

Periodontal ligament stem cells (PDLSCs) are multipotent stem cells derived from periodontium and have mesenchymal stem cell (MSC)-like characteristics. Recently, the perivascular region was recognized as the developmental origin of MSCs, which suggests the <i>in vivo</i> angiogenic potential of PDLSCs. In this study, we investigated whether PDLSCs could be a potential source of perivascular cells, which could contribute to <i>in vivo</i> angiogenesis. PDLSCs exhibited typical MSC-like character

This paper summarizes the current state of the art in interplanetary supply chain modeling and discusses SpaceNet as one particular method and tool to address space logistics modeling and simulation challenges. Fundamental upgrades to the interplanetary supply chain framework such as process groups, nested elements, and cargo sharing, enabled SpaceNet to model an integrated set of missions as a campaign. The capabilities and uses of SpaceNet are demonstrated by a step-by-step modeling and simula