نتایج جستجو برای: ocular organogenesis
تعداد نتایج: 61340 فیلتر نتایج به سال:
The conservation of genetic resources in cryocollections requires reliable protocols for the cryopreservation and regeneration preserved material. With Ulmus glabra, thawed buds by vitro organogenesis has suffered from low shoot growth high contamination rates. dehydration before improved rate ameliorated cultures initiated buds, although degree success varied depending on donor tree.
The study evaluated the aseptic establishment of Monstera acuminata Koch and deliciosa Liebm (Araceae) from leaves induction in vitro organogenesis M. K. stem discs young shoots. For this purpose, different disinfection protocols were applied to mature shoots, which leaf explants approximately 1 cm2 mm thickness extracted. established semi-solid media with hormone treatments during stage organo...
Although the vertebrate retina is a well-studied paradigm for organogenesis, the morphogenetic mechanisms that carve the architecture of the vertebrate optic cup remain largely unknown. Understanding how the hemispheric shape of an eye is formed requires addressing the fundamental problem of how individual cell behaviour is coordinated to direct epithelial morphogenesis. Here, we analyze the ro...
Wnt signaling is a crucial component of the cell machinery orchestrating a series of physiological processes such as cell survival, proliferation, and migration. Among the plethora of roles that Wnt signaling plays, its canonical branch regulates eye organogenesis and angiogenesis. Mutations in the genes encoding the low density lipoprotein receptor protein 5 (LRP5) and frizzled 4 (FZD4), actin...
Background: Thyroid-associated eye disease (TED), previously known as Graves’ ophthalmopathy is a cosmetically and functionally debilitating disease that is seen worldwide. The aim of this study was to evaluate the prevalence and clinical severity of ocular manifestations of Graves’ disease according to sex, age and duration in northern Iran. Methods: Between April 2011 and March 2...
Background - MaterialsAndMethods N;Results N;Conclusion N;
The technique pioneered by D.A.T. New for the in vitro culture of early post-implantation rat embryos has been used to study nutritional mechanisms during early organogenesis. The results indicate that the principal route for amino acid supply to the 8.5- to 11.5-day embryo involves the endocytosis of proteins into cells of the visceral yolk sac endoderm, their digestion in lysosomes, and trans...
Laminins (LM) are extracellular matrix molecules that contribute to and are required for the formation of basement membranes. They participate in the modulation of epithelial/mesenchymal interactions and are implicated in organogenesis and maintenance of organ homeostasis. Among the LM molecules, the LM α5 chain (LMα5) is one of the most widely distributed LM in the developing and mature organi...
One novel solution to the shortage of human organs available for transplantation envisions growing new organs in situ via xenotransplantation of developing primordia from animal embryos. It has been shown that renal primordia (metanephroi) transplanted into animal hosts undergo organogenesis in situ, become vascularized by blood vessels of host origin, and exhibit excretory function. Metanephro...
purpose: to determine the prevalence of ocular involvement in patients with tuberculosis (tb) infection. methods: all patients with a new diagnosis of tb who were referred to zahedan tuberculosis center underwent a complete ophthalmic examination. any cases of known ophthalmic disease or previous ocular involvement were excluded from the study. prevalence of ocular involvement with 95% confiden...
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