نتایج جستجو برای: nodal segments

تعداد نتایج: 83537  

2012
Tanya De Silva Gang Ye Yao-Yun Liang Guodong Fu Guoxiong Xu Chun Peng

Nodal is a member of the transforming growth factor-β (TGF-β) superfamily that plays critical roles during embryogenesis. Recent studies in ovarian, breast, prostate, and skin cancer cells suggest that Nodal also regulates cell proliferation, apoptosis, and invasion in cancer cells. However, it appears to exert both tumor-suppressing and tumor-promoting effects, depending on the cell type. To f...

2010
Katharine M. Hardy Dawn A. Kirschmann Elisabeth A. Seftor Naira V. Margaryan Lynne-Marie Postovit Mary J.C. Hendrix

Metastatic melanoma is an aggressive skin cancer associated with poor prognosis. The reactivation of the embryonic morphogen Nodal in metastatic melanoma has previously been shown to regulate the aggressive behavior of these tumor cells. During the establishment of left-right asymmetry in early vertebrate development, Nodal expression is specifically regulated by aNotch signaling pathway.Wehypo...

2012
Mechuselie Kehie Suman Kumaria Pramod Tandon

An in vitro regeneration protocol was developed for Capsicum chinense Jacq. cv. Naga King Chili, a very pungent chili cultivar and an important horticultural crop of Nagaland (Northeast India). Maximum number of shoot (13 ± 0.70) was induced with bud-forming capacity (BFC) index of 10.8, by culturing nodal segments in Murashige and Skoog (MS) medium supplemented with 18.16 μM Thidiazuron (TDZ) ...

Journal: :Agrária 2023

Seedling abnormalities are a common problem in micropropagation and require investigation. This study aimed to assess the growth characteristics morphoanatomy of stem apices nodal segments basil (Ocimum basilicum) ‘Dark Opal’ inoculated medium containing combinations 6-benzylaminopurine (BAP) naphthaleneacetic acid (NAA). Presence calluses, adventitious roots, abnormal seedlings was quantified ...

2017
Tessa G Montague Alexander F Schier

Nodal is considered the key inducer of mesendoderm in vertebrate embryos and embryonic stem cells. Other TGF-beta-related signals, such as Vg1/Dvr1/Gdf3, have also been implicated in this process but their roles have been unclear or controversial. Here we report that zebrafish embryos without maternally provided vg1 fail to form endoderm and head and trunk mesoderm, and closely resemble nodal l...

Ali Mansouri Amin Omidian Ehsan Mohamadian Nosratollah Mohammad Beigi Rahmat Aazami,

With the development of deregulated power systems and increase of prices in some hours of day and increase fuel price, demand response programs were noticed more by customers. demand response consists of a series of activities that governments or utilities design to change the amount or time of electric energy consumption, to achieve better social welfare or some times for maximizing the benefi...

Journal: :American journal of physiology. Renal physiology 2013
Kristen Y Westrick Bradley Serack William H Dantzler Thomas L Pannabecker

In the inner medulla, radial organization of nephrons and blood vessels around collecting duct (CD) clusters leads to two lateral interstitial regions and preferential intersegmental fluid and solute flows. As the descending (DTLs) and ascending thin limbs (ATLs) pass through these regions, their transepithelial fluid and solute flows are influenced by variable transepithelial solute gradients ...

Journal: :physiology and pharmacology 0
vahid khori golestan cardiovascular research center, golestan university of medical science saed saleki golestan cardiovascular research center, golestan university of medical science aref salehi golestan cardiovascular research center, golestan university of medical science alimohammad alizadeh tehran university of medical science mona pourabouk golestan cardiovascular research center, golestan university of medical science fakhri badaghabadi golestan cardiovascular research center, golestan university of medical science

introduction: electrophysiological studies have demonstrated a relationship between aging and atrioventricular (av) nodal conduction and refractoriness. the aim of the present study was to determine the effects of nodal aging on dynamic av nodal field potential recording during atrial fibrillation (af) in rabbit. methods: two groups of male new zealand rabbits (neonatal 2-week-olds and adult 12...

Journal: :Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology 2015
Lili Wang Guojun Wu Xiaoqun Qin Qiongshan Ma Yigang Zhou Shuiping Liu Yurong Tan

BACKGROUND/AIMS The previous study in our lab showed that Nodal molecule on bronchial epithelial cells (BECs) was modulated by all kinds of lung microbes. The present study was designed to determine the effects of Nodal on proliferation of BECs and BECs-induced differentiation of T-helper (Th) cells. The epigenetic mechanisms of Nodal expression following treatments of different lung microbes w...

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