• 제목/요약/키워드: Disease cycle

검색결과 454건 처리시간 0.02초

Autosomal Dominant Polycystic Kidney Desease Coexisting with Renal Dysplasia. First Case Described and Followed Since Prenatal Period

  • Truyols, Carmen
    • Childhood Kidney Diseases
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    • 제22권2호
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    • pp.64-66
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    • 2018
  • Autosomal dominant polycystic kidney disease (ADPKD) is the most frequent hereditary renal disease and causes terminal chronic renal failure. ADPKD is characterized by bilateral multiple renal cysts, which are produced by mutations of the PKD1 and PKD2 genes. PKD1 is located on chromosome 16 and encodes a protein that is involved in cell cycle regulation and intracellular calcium transport in epithelial cells and is responsible for 85% of ADPKD cases. Although nine cases of unilateral ADPKD with contralateral kidney agenesis have been reported, there have been no reports of early childhood ADPKD. Here, we report the only case of unilateral ADPKD with contralateral kidney dysplasia in the world in a four year-old girl who was intrauterinely diagnosed since she was 20 weeks old and followed for four years until present.

사상체질치료(四象體質治療)를 겸(兼)한 희발월경(稀發月經) 환자(患者) 1례(例)에 대한 임상적(臨床的) 고찰(考察) (A Clinical study of Oligomenorrhea)

  • 조혜숙;배경미;이인선
    • 대한한방부인과학회지
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    • 제15권4호
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    • pp.163-173
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    • 2002
  • Oligomenorrhalgia is one of common clinical disease in the gynecologic problems, means menstual cycle of 35 days-6 months. In oriental medicine is similar to means of 'Delayed menstruation', 'Postdated menstruation', 'Retarded menstruation' etc. Because in many case Oligomenorrhea became worse to amenorrhea, is realation to outbreak of infertility or systemic dysphoria and need detail examination and lasting inspection. We treated one case of Oligomenorrhalgia. This study classified the disease of the patient the deficiency of kindey, seven emotions and blood feaver. After the treatment, Oligomenorrhalgia is cured. The result get effective by korean medicine.

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Cellular senescence: a promising strategy for cancer therapy

  • Lee, Seongju;Lee, Jae-Seon
    • BMB Reports
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    • 제52권1호
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    • pp.35-41
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    • 2019
  • Cellular senescence, a permanent state of cell cycle arrest, is believed to have originally evolved to limit the proliferation of old or damaged cells. However, it has been recently shown that cellular senescence is a physiological and pathological program contributing to embryogenesis, immune response, and wound repair, as well as aging and age-related diseases. Unlike replicative senescence associated with telomere attrition, premature senescence rapidly occurs in response to various intrinsic and extrinsic insults. Thus, cellular senescence has also been considered suppressive mechanism of tumorigenesis. Current studies have revealed that therapy-induced senescence (TIS), a type of senescence caused by traditional cancer therapy, could play a critical role in cancer treatment. In this review, we outline the key features and the molecular pathways of cellular senescence. Better understanding of cellular senescence will provide insights into the development of powerful strategies to control cellular senescence for therapeutic benefit. Lastly, we discuss existing strategies for the induction of cancer cell senescence to improve efficacy of anticancer therapy.

기도청결 기법(Airway Clearance Technique)에 관한 고찰 (A Review of Airway Clearance Technique)

  • 김경
    • The Journal of Korean Physical Therapy
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    • 제16권1호
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    • pp.1-13
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    • 2004
  • Airway clearance technique are used to aid in mucus clearance in a variety of disease states. In this review I discuss airway physiology including airway mucus, action of airways, and airway resistance and review the literature and theory regarding forced expiratory technique, active cycle of breathing technique, and autogenic drainage. Also, I look at the appropriate device such as positive expiratory pressure mask(PEP mask), Flutter, and HFCWO(Vest system) which can be applied in the field of respiratory physical therapy. This study is provided as the basic resource regarding the application method of respiratory physical therapy.

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자연 생리주기에서 발생된 병합임신 1예 (A Case of Heterotopic Pregnancy in a Natural Cycle)

  • 배성준;김주선;김진학;윤연정;이신애
    • Clinical and Experimental Reproductive Medicine
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    • 제33권1호
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    • pp.69-69
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    • 2006
  • 병합임신은 두 개의 수정란이 자궁강 내와 자궁강 외에 동시에 착상되어 임신되는 것을 말한다. 그 예가 드물어 자연발생빈도는 약 30,000건의 임신 중 1명으로 나타나지만, 최근에는 불임환자의 체외 수정을 위한 배란 유도제의 사용이나 기타 생식 보조술의 발달, 골반내 염증, 난관수술로 인해 증가하고 있다. 병합임신은 조기 진단이 어려워 이에 따른 모성 사망률, 이환율이 높아지므로, 진단에 있어서 신중함이 중요하다. 저자들은 경찰병원에서 자연 생리주기에서 7주간의 무월경과 심한 하복부 통증을 주소로 내원한 29세 여환에서 발견된 좌측 난관임신과 자궁강 내 임신이 공존하는 병합임신을 간단한 문헌 고찰과 함께 보고하는 바이다.

인간난자의 체외수정에서 난포기의 Estradiol 반응도와 양상이 임신율과의 판계에 관한 연구 (The Correlation Between the Preovulatory $E_2$ Pattern and Pregnancy Rate after in Vitro Fertilization-Embryo Transfer)

  • 이상훈;최훈;김정구;문신용;이진용;장윤석
    • Clinical and Experimental Reproductive Medicine
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    • 제14권2호
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    • pp.109-118
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    • 1987
  • Ninety-one patients with irreparable tubal disease underwent in Vitro Fertilization-Embryo Transfer (IVF-ET) in Seoul National University Hospital. Ovulation was stimulated in 104 cycles by human menopausal gonadotropin (HMG) or follicular stimulating hormone (FSH)/human chorionic gonadotropin (HCG). The patients were classified as high (>900 pg/ml), intermediate (400-900 pg/ml), or low (<400pg/ml) responder according to preovulatory $E_2$ response and four $E_2$ patterns were found. The overall pregnancy rate per cycle in this consecutive series was 11.5% (n=12). The number of preovulatory oocytes per cycle was higher significantly in intermediate and high responder group than in low responder group (P<0.01), While the number of immature oocytes per cycle significantly higher in low responder group than high and intermediate responder group (P<0.01). The pregnancy rate in each responder group was not signigicant. According to the $E_2$ pattern of response, there was no significant difference in number of the immature and preovulatory oocytes recovery per cycle. There was a apparently direct relationship between the preovulatory $E_2$ pattern and pre gnancy rate was noted.

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MCF-7 인체 유방암 세포에서 옻나무 추출물이 p53-Dependent G1 Cell Cycle에 미치는 영향 (Induction of p53-Dependent G1 Cell Cycle Arrest by Rhus verniciflua. Stokes Extract in Human Breast Carcinoma MCF-7 Cells)

  • 홍상훈;한민호;최영현;박상은
    • 대한한방내과학회지
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    • 제36권1호
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    • pp.13-21
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    • 2015
  • Objectives : In Korea, Rhus verniciflua Stokes (RVS) has been used in traditional medicine for various diseases such as back pain, syndromes of the blood system in women, gastrointestinal disease, and cancer. However, the molecular mechanisms of its anti-cancer activity have not been clearly elucidated yet. Methods : This study investigated the possible mechanisms by which RVS extract (RVE) exerts its anti-proliferative action in cultured human breast carcinoma MCF-7 cells. Results : Treatment with RVE in MCF-7 cells resulted in inhibition of cell viability through G1 arrest of the cell cycle and induction of apoptosis in a time- and concentration-dependent manner, as determined by MTT assay and flow cytometry analysis. The induction of G1 arrest by RVE treatment was associated with the inhibition of cyclin D1, cyclin-dependent kinase (Cdk) 2, retinoblastoma protein (pRB), and mouse double minute 2 (MDM2) expression. Moreover, RVE treatment concentration dependently increased the levels of tumor suppressor p53, which was associated with the marked induction of Cdk inhibitors such as p21 (Waf1/Cip1) and p27 (Kip1). However, the inhibition of p53 function by the wild-type p53-specific inhibitor, pifithrin-α, abolished the above-mentioned effects of RVE, showing that p53 was responsible for the cytotoxicity of RVE Conclusions : These data indicate that a molecular pathway involving p53-dependent G1 cell cycle arrest plays a pivotal role in the cellular response to RVE, and demonstrate the potential applications of RVE as an anti-cancer drug for breast cancer treatment.

The Aurora Kinase Inhibitor CYC116 Promotes the Maturation of Cardiomyocytes Derived from Human Pluripotent Stem Cells

  • Sijia, Ji;Wanzhi, Tu;Chenwen, Huang;Ziyang, Chen;Xinyue, Ren;Bingqing, He;Xiaoyan, Ding;Yuelei, Chen;Xin, Xie
    • Molecules and Cells
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    • 제45권12호
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    • pp.923-934
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    • 2022
  • Human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) have great potential in applications such as regenerative medicine, cardiac disease modeling, and in vitro drug evaluation. However, hPSC-CMs are immature, which limits their applications. During development, the maturation of CMs is accompanied by a decline in their proliferative capacity. This phenomenon suggests that regulating the cell cycle may facilitate the maturation of hPSC-CMs. Aurora kinases are essential kinases that regulate the cell cycle, the role of which is not well studied in hPSC-CM maturation. Here, we demonstrate that CYC116, an inhibitor of Aurora kinases, significantly promotes the maturation of CMs derived from both human embryonic stem cells (H1 and H9) and iPSCs (induced PSCs) (UC013), resulting in increased expression of genes related to cardiomyocyte function, better organization of the sarcomere, increased sarcomere length, increased number of mitochondria, and enhanced physiological function of the cells. In addition, a number of other Aurora kinase inhibitors have also been found to promote the maturation of hPSC-CMs. Our data suggest that blocking aurora kinase activity and regulating cell cycle progression may promote the maturation of hPSC-CMs.

The primary cilium as a multiple cellular signaling scaffold in development and disease

  • Ko, Hyuk-Wan
    • BMB Reports
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    • 제45권8호
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    • pp.427-432
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    • 2012
  • Primary cilia, single hair-like appendage on the surface of the most mammalian cells, were once considered to be vestigial cellular organelles for a past century because of their tiny structure and unknown function. Although they lack ancestral motility function of cilia or flagella, they share common ground with multiciliated motile cilia and flagella on internal structure such as microtubule based nine outer doublets nucleated from the base of mother centrioles called basal body. Making cilia, ciliogenesis, in cells depends on the cell cycle stage due to reuse of centrioles for cell division forming mitotic spindle pole (M phase) and assembling cilia from basal body (starting G1 phase and maintaining most of interphase). Ciliary assembly required two conflicting processes such as assembly and disassembly and balance between these two processes determines the length of cilia. Both process required highly conserved transport system to supply needed substance to grow tip of cilia and bring ciliary turnover product back to the base of cilia using motor protein, kinesin and dynein, and transport protein complex, IFT particles. Disruption of ciliary structure or function causes multiple human disorder called ciliopathies affecting disease of diverse ciliated tissues ranging from eye, kidney, respiratory tract and brain. Recent explosion of research on the primary cilia and their involvement on animal development and disease attracts scientific interest on how extensively the function of cilia related to specific cell physiology and signaling pathway. In this review, I introduce general features of primary cilia and recent progress in understanding of the ciliary length control and signaling pathways transduced through primary cilia in vertebrates.