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Spindle dynamics has a critical role in many physiological mechanisms such as genomic integrity and aging. It is also well known that these mechanisms affect oocyte quality. Because the oocyte quality affects fertility and embryo development, many efforts have been conducted to understand the molecular mechanisms that regulate spindle dynamics during oocyte maturation. Here, we show that translationally controlled tumor protein (TCTP) regulates spindle dynamics during oocyte maturation and prevents deterioration of oocyte quality during postovulatory aging. TCTP was expressed and localized at the cytoplasm with strong enrichment at the spindle microtubules during meiosis. Through the knockdown of TCTP, we found that TCTP regulated stability of the polar microtubules. Meanwhile, spindle dynamics were dramatically decreased with reduced TCTP level during the postovulatory oocyte aging both in vitro and in vivo. Knockdown of TCTP accelerated the reduction of spindle dynamics and aging-related quality deterioration of oocytes. Conversely, overexpression of TCTP rescued microtubule dynamics during postovulatory aging of oocytes and prevented aging-induced deterioration of quality. In addition, overexpression of TCTP improved fertilization competency and subsequent embryonic development. Therefore, our results demonstrate that TCTP is a microtubule-associating protein required to regulate spindle dynamics in mouse oocytes and protects oocytes from aging-related quality deterioration.
Background: Photodynamic therapy (PDT) has been used for acne, with various combinations of photosensitizers and light sources. Objectives: We aimed to evaluate the effectiveness and safety of indocyanin green (ICG) and intense pulsed light (IPL) in the treatment of acne. Methods: A total of 1,213 patients with facial acne were retrospectively reviewed. Patients received three or five treatments of ICG and IPL at two-week intervals. Clinical response to treatment was assessed by comparing pre- and post-treatment clinical photographs and patient satisfaction scores. Results: A total of 1,213 patients with facial acne were retrospectively reviewed. Patients received three or fivetreatments of ICG and IPL at two-week intervals. Clinical response to treatment was assessed by comparing pre- and post-treatment clinical photographs and patient satisfaction scores. Conclusion: These results suggest that PDT with ICG and IPL can be effectively and safely used in the treatment of acne.
We study the uniqueness of the positive solution for the generalized Lotka-Volterra competition model for several competing species. Some uniqueness results when self-reproduction, self-limitation, and competition rates are positive constants have been obtained over the last decade. We generalize these results when self-limitation and competition are mere general functions. The techniques used in this paper are upper-lower solutions, maximum principles and spectrum estimates. The arguments also rely on some detailed properties for the solution of logistic equatins.
The Yeungnam University Journal of Medicine (YUJM) was first published in December 1984 as the official journal of the Yeungnam University College of Medicine. It is an international, peer-reviewed, and open access journal. The aim of YUJM is to communicate new medical information to the medical personnel and facilitate the development of medicine through propagation of medical knowledge by publishing high quality evidence-based articles. It has been published in English since 2018. YUJM has been indexed in both the Directory of Open Access Journals (DOAJ; June 2019) and PubMed Central (PMC; October 2019). It has been available for journal article search through PubMed since the publication of volume 35, issue 1, 2018. The significance of YUJM being indexed in DOAJ and PMC is as follows: firstly, it has advanced to an international-level journal; secondly, it can be easily searched in PubMed; and lastly, journal citations will increase because they are available online to be read and used readily. To promote YUJM to SCOPUS and SCIE-indexed journals, the efforts toward maintaining the high scientific standard of the journal need to be continued; additionally, there is a need to increase the critical mass and standard of content. Finally, I would like to express my sincere thanks to the former editor-in-chiefs, members of the editorial board, reviewers, manuscript editors, and publishers for their utmost devotion to the success of YUJM. In particular, I deeply appreciate all authors of the articles for their support and contribution. I hope that the readers and researchers will share their valuable thoughts and experiences, and recent information in the field of medical science.