• Title/Summary/Keyword: Growth-related factor

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A Clinical Case after Administering Eukmigihwang-tang plus Bojungikgi-tang on Child Growth (소아성장(小兒成長)에 육미지황탕(六味地黃湯) 합(合) 보중익기탕(補中益氣湯)을 투여(投與)한 임상례(臨床例))

  • Cha, Kwan-Bae;An, Joung-Jo;Jo, Hyun-Kyung;Yoo, Ho-Ryong;Kim, Yoon-Sik;Seol, In-Chan
    • Journal of Haehwa Medicine
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    • v.16 no.2
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    • pp.217-223
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    • 2007
  • Over the period between October 2005 and February 2007, herbal medicine was administered to the patients coming to Dr. Cha Oriental Medical Clinic. As regards the prescription administered to children patients for treating their growth deficiency, Eukmigihwang-tang related to the kidney, the congenital factor, Bojungikgi-tang related to the spleen, the acquired factor. So I administered Eukmigihwang-tang plus Bojungikgi-tang(a union of both herb-remedy: Eukmigihwang-tang and Bojungikgi-tang) The results were obtained as follows. 1. The youngest is six years old, the oldest is thirteen years old. 2. A ratio of male and female children was same. 3. It was shown to be a greater increase than the average value of growth surveyed by the National Statistical Office. 4. It is considered that EukmigihwangtangHapBojungikgitang is effective on child growth.

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Growth and sex differentiation of children born small for gestational age (부당경량아에서의 성장과 성 발달)

  • Kim, Se Young
    • Clinical and Experimental Pediatrics
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    • v.52 no.2
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    • pp.142-151
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    • 2009
  • The incidence of small for gestational age (SGA) births is frequent, accounting for 2.3% to 8% of all live births. Several childhood and adult diseases are related to early postnatal growth and birth size, and 10% of children born SGA may have a short stature throughout postnatal life. Additionally, they may have abnormal growth hormone (GH)-insulin like growth factor axis, HPA axis, and gonadal function. Permanent changes are detrimental in an environment of nutritional abundance, and predispose SGA children to an array of diseases in adolescence and adulthood. Such changes may also cause premature pubarche, adrenarche, and precocious puberty. The varying results from clinical studies necessitate more prospective case control studies. Reproductive tract abnormalities and reproductive dysfunction are related to SGA births. GH treatment is required for SGA infants who do not experience catch-up growth.

Growth signaling and longevity in mouse models

  • Kim, Seung-Soo;Lee, Cheol-Koo
    • BMB Reports
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    • v.52 no.1
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    • pp.70-85
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    • 2019
  • Reduction of insulin/insulin-like growth factor 1 (IGF1) signaling (IIS) extends the lifespan of various species. So far, several longevity mouse models have been developed containing mutations related to growth signaling deficiency by targeting growth hormone (GH), IGF1, IGF1 receptor, insulin receptor, and insulin receptor substrate. In addition, p70 ribosomal protein S6 kinase 1 (S6K1) knockout leads to lifespan extension. S6K1 encodes an important kinase in the regulation of cell growth. S6K1 is regulated by mechanistic target of rapamycin (mTOR) complex 1. The v-myc myelocytomatosis viral oncogene homolog (MYC)-deficient mice also exhibits a longevity phenotype. The gene expression profiles of these mice models have been measured to identify their longevity mechanisms. Here, we summarize our knowledge of long-lived mouse models related to growth and discuss phenotypic characteristics, including organ-specific gene expression patterns.

Study of Growth Disturbance and Endocrine, in the view of Oriental Medicine (소아 성장장애와 내분비에 대한 한의학적 고찰)

  • Jun Chan-Il
    • The Journal of Pediatrics of Korean Medicine
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    • v.15 no.1
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    • pp.105-115
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    • 2001
  • The relation of endocrine in the western medicine and zangfu-organ functions in Korean medicine, related to growth disturbance, was studied and derived the following results. 1. The hormone most related to growth disturbance is, directly secreted from the anterior pituitary or is stimulated and secreted in the target grands, growth hormone, thyroid, adrenocortical hormone, gonadial hormone and is insulin secreted from $\beta$ cell of langerhans' slands of pancreas. 2. the pituitary has the most close relation with the kidney in the five zang-organ. Because the kidney is innate origin(先天之本) and promotes qi and blood(生化氣血), stores the essence of life(藏精), dominates the bones(主骨) and promotes the marrow(生骨髓). Especially it is connected with brain(通於腦). 3. In the children growth, the endocrine action in the pituitary has the most close relation with the kidney, As in the reports of the brain and spinal cord, bone, store essence of life, sexual maturation and decline(kidney-qi, sexual functions of both sexes(天癸)) etc, and cause of cretinism, dwarf in the main subject. 4. Somatomedin is the most important factor of the growth factors, IGF in another word. The unification of IGF and secretion is controlled firstly according to growth hormone, however is very closely related to the nutrition status in the non-hormonic causes. Also, it is affected very much by the insulin. 5. Insulin is one of the important hormone related to the growth and is secreted from the pancreas. Pancreas belongs to the functional system of spleen in oriental medicine, thus the growth disturbance, occurred due to error in insulin secretion and nutrition(in another words, the lack of postnatal essential substance from food-stuff(水穀精氣)), is closely related to the spleen. 6. From the results driven above, the hormone action of endocrine and problem in secretion, related to the growth disturbance, must be focused on the differentiation of symptoms and signs of the kidney and the spleen in oriental medicine.

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Hypoxia Mediates Runt-Related Transcription Factor 2 Expression via Induction of Vascular Endothelial Growth Factor in Periodontal Ligament Stem Cells

  • Xu, Qian;Liu, Zhihua;Guo, Ling;Liu, Rui;Li, Rulei;Chu, Xiang;Yang, Jiajia;Luo, Jia;Chen, Faming;Deng, Manjing
    • Molecules and Cells
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    • v.42 no.11
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    • pp.763-772
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    • 2019
  • Periodontitis is characterized by the loss of periodontal tissues, especially alveolar bone. Common therapies cannot satisfactorily recover lost alveolar bone. Periodontal ligament stem cells (PDLSCs) possess the capacity of self-renewal and multilineage differentiation and are likely to recover lost alveolar bone. In addition, periodontitis is accompanied by hypoxia, and hypoxia-inducible $factor-1{\alpha}$ ($HIF-1{\alpha}$) is a master transcription factor in the response to hypoxia. Thus, we aimed to ascertain how hypoxia affects runt-related transcription factor 2 (RUNX2), a key osteogenic marker, in the osteogenesis of PDLSCs. In this study, we found that hypoxia enhanced the protein expression of $HIF-1{\alpha}$, vascular endothelial growth factor (VEGF), and RUNX2 ex vivo and in situ. VEGF is a target gene of $HIF-1{\alpha}$, and the increased expression of VEGF and RUNX2 proteins was enhanced by cobalt chloride ($CoCl_2$, $100{\mu}mol/L$), an agonist of $HIF-1{\alpha}$, and suppressed by 3-(5'-hydroxymethyl-2'-furyl)-1-benzyl indazole (YC-1, $10{\mu}mol/L$), an antagonist of $HIF-1{\alpha}$. In addition, VEGF could regulate the expression of RUNX2, as RUNX2 expression was enhanced by human VEGF ($hVEGF_{165}$) and suppressed by VEGF siRNA. In addition, knocking down VEGF could decrease the expression of osteogenesis-related genes, i.e., RUNX2, alkaline phosphatase (ALP), and type I collagen (COL1), and hypoxia could enhance the expression of ALP, COL1, and osteocalcin (OCN) in the early stage of osteogenesis of PDLSCs. Taken together, our results showed that hypoxia could mediate the expression of RUNX2 in PDLSCs via $HIF-1{\alpha}$-induced VEGF and play a positive role in the early stage of osteogenesis of PDLSCs.

Effects of Cheunggyeongsamul-tang Extract on Longitudinal Bone Growth in Adolescent Female Rats (청경사물탕(淸經四物湯) 추출물의 성장기 흰쥐 장골길이 성장에 대한 효과)

  • Lee, Jung-Hun;Lee, Se-Na;Son, Jae-Bong;Keum, So-Hyun;Leem, Kang-Hyun
    • The Korea Journal of Herbology
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    • v.24 no.4
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    • pp.149-157
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    • 2009
  • Objectives : This study was designed to investigate the effects of Cheunggyeongsamul-tang extract on the growth of longitudinal bone in adolescent female rats. Methods : Longitudinal bone growth was measured by fluorescent microscopy. To examine the effects on the growth plate metabolism, the total height of growth plate, the induction of local insulin-like growth factor-1 (IGF-1), IGF-1 receptor, bone morphogenetic protein-2 (BMP-2), BMPR-1A, indian hedgehog (IHH), and parathyroid hormone-related protein (PTH-rP) were measured. Results : Cheunggyeongsamul-tang extract enhanced longitudinal bone growth and total height of the growth plate. Also, it promoted the induction of local IGF-1, BMP-2, IHH and PTH-rP of the growth plate. Conclusions : This study shows that the Cheunggyeongsamul-tang extract effects longitudinal bone growth in adolescent rats and might be used for both stunted adolescents and inherent growth failure patients.

Latent Transforming Growth Factor-beta1 Functionalised Electrospun Scaffolds Promote Human Cartilage Differentiation: Towards an Engineered Cartilage Construct

  • Lim, Erh-Hsuin;Sardinha, Jose Paulo;Myers, Simon;Stevens, Molly
    • Archives of Plastic Surgery
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    • v.40 no.6
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    • pp.676-686
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    • 2013
  • Background To overcome the potential drawbacks of a short half-life and dose-related adverse effects of using active transforming growth factor-beta 1 for cartilage engineering, a cell-mediated latent growth factor activation strategy was developed incorporating latent transforming growth factor-${\beta}$1 (LTGF) into an electrospun poly(L-lactide) scaffold. Methods The electrospun scaffold was surface modified with NH3 plasma and biofunctionalised with LTGF to produce both random and orientated biofunctionalised electrospun scaffolds. Scaffold surface chemical analysis and growth factor bioavailability assays were performed. In vitro biocompatibility and human nasal chondrocyte gene expression with these biofunctionalised electrospun scaffold templates were assessed. In vivo chondrogenic activity and chondrocyte gene expression were evaluated in athymic rats. Results Chemical analysis demonstrated that LTGF anchored to the scaffolds was available for enzymatic, chemical and cell activation. The biofunctionalised scaffolds were non-toxic. Gene expression suggested chondrocyte re-differentiation after 14 days in culture. By 6 weeks, the implanted biofunctionalised scaffolds had induced highly passaged chondrocytes to re-express Col2A1 and produce type II collagen. Conclusions We have demonstrated a proof of concept for cell-mediated activation of anchored growth factors using a novel biofunctionalised scaffold in cartilage engineering. This presents a platform for development of protein delivery systems and for tissue engineering.

Effects of Epidermal Growth Factor on the Apoptosis and Implantation Related Genes in Bovine Embryos Developing in vitro

  • Park, Sae-Young;Tae, Jin-Cheol;Kim, Eun-Young;Park, Se-Pill;Lim, Jin-Ho;Kim, Nam-Hyung
    • Proceedings of the Korean Society of Developmental Biology Conference
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    • 2003.10a
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    • pp.114-114
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    • 2003
  • Epidermal growth factor (EGF) induces well-documented mitogenic and differentiating effects on murine and bovine preimplantation embryos. However, the effects of EGF on apoptosis and implantation-related gene expression in bovine embryos developing in vitro have not been evaluated. The objective of this study was to determine the effects of exogenous EGF in the presence and absence of BSA on the preimplantation development of bovine embryos. In addition, we measured cell number, apoptosis, and expression of apoptosis and implantation-related genes of the blastocysts that developed in these culture conditions. In vitro produced bovine embryos were randomly cultured in the same medium containing 0 or 10 ng/ml EGF in the presence and absence of 0.8% BSA. More 2-cell embryos developed into blastocysts at day 7 when BSA was present than when BSA was absent. The addition of 10 ng/$m\ell$ EGF into the medium did not significantly increase the developmental rate and the cell numbers per blastocyst. However, addition of EGF in the presence of 0.8% BSA significantly reduced the degree of apoptosis in the blastocysts (P<0.01). To investigate whether EGF modulates mRNA expression of apoptosis-related genes, mRNA was prepared from single blastocysts and each preparation was subjected to RT-PCR for Bcl-2 and Bax transcripts. EGF did not alter the relative abundance of Bax gene expression in the presence of BSA, but increase Bcl-2 (P<0.01) The relative abundance of Interferon tau expression was increased by EGF treatment in the presence of BSA. These results suggest that EGF and BSA synergistically enhance Bcl-2 and interferone tau gene expression, which may result in a net increase in viability in bovine embryos.

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