keyword
MENU ▼
Read by QxMD icon Read
search

Pax6

keyword
https://www.readbyqxmd.com/read/29787792/age-dependent-alterations-in-expression-and-co-localization-of-pax6-and-ras-gap-in-brain-of-aging-mice
#1
Khushboo Srivastava, Ratnakar Tripathi, Rajnikant Mishra
As the brain ages, the survival and plasticity of neurons and glia are compromised. The data-mining and in silico studies suggest interactions of Pax6 with Ras and binding sites in Ras-GAP promoter. The Pax6 also shows age-dependent alterations. Therefore, it is presumed that Pax6 may be associated with the Ras-GAP, a synaptic protein, either directly or indirectly in brain. The expression, co-localization and interaction of Pax6 and Ras-GAP in different regions of brain of mice during aging were investigated through immunofluorescence assay, co-immunoprecipitation and western blotting, respectively...
May 19, 2018: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/29780932/case-series-pyramidal-cataracts-intact-irides-and-nystagmus-from-three-novel-pax6-mutations
#2
Bharesh K Chauhan, Anagha Medsinge, Matthew P Baumgartner, Hannah L Scanga, Smaragda Kamakari, Eva Gajdosova, Carlos J Camacho, Ken K Nischal
Purpose: To investigate the association between novel PAX6 mutations to bilateral anterior pyramidal congenital cataracts (APyC), complete and intact irides, and nystagmus. Observations: This is a retrospective observational case series in a multi-center setting with genetic testing. Three female patients were diagnosed with bilateral APyC, intact irides and nystagmus. Genetic testing identified the three patients had novel missense mutations in PAX6 - c.128C > T; p...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29777582/comparative-study-of-liraglutide-and-insulin-glargine-on-glycemic-control-and-pancreatic-%C3%AE-cell-function-in-db-db-mice
#3
Yanli Li, Jia Zheng, Yunfeng Shen, Wangen Li, Meimei Liu, Jun Wang, Surong Zhu, Meihua Wu
BACKGROUND The aim of this study was to compare the effects of liraglutide, a long-acting glucagon-like peptide-1 (GLP-1) receptor agonist, and insulin glargine, a long-acting insulin analog, on glycemic control and pancreatic β-cell function in db/db mice. MATERIAL AND METHODS Eight-week-old male db/db mice (n=40) were divided into five groups: the vehicle-treated group (VG) (n=8); the insulin glargine-treated group (GG) (dose, 450 mg/kg) (n=8), the low-dose liraglutide-treated group (LLG) (dose, 75 μg/kg) (n=8), the mid-dose liraglutide-treated group (MLG) (150 μg/kg) (n=8), and the high-dose liraglutide-treated group (HLG) (300 μg/kg) (n=8), treated with subcutaneous injection once daily, from 8-14 weeks-of-age...
May 19, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29775563/anolis-carolinensis-as-a-model-to-understand-molecular-and-cellular-basis-of-foveal-development
#4
Naif S Sannan, Xianghong Shan, Kevin Gregory-Evans, Kenro Kusumi, Cheryl Y Gregory-Evans
The fovea is an anatomical specialization of the central retina containing closely packed cone-photoreceptors providing an area of high acuity vision in humans and primates. Despite its key role in the clarity of vision, little is known about the molecular and cellular basis of foveal development, due to the absence of a foveal structure in commonly used laboratory animal models. Of the amniotes the retina in birds of prey and some reptiles do exhibit a typical foveal structure, but they have not been studied in the context of foveal development due to lack of availability of embryonic tissue, lack of captive breeding programs, and limited genomic information...
May 15, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29770908/level-of-hydrogen-peroxide-affects-expression-and-sub-cellular-localization-of-pax6
#5
Sachin Shukla, Rajnikant Mishra
The Pax6 is a multifunctional pairedbox and homeobox containing transcription factor which is involved in several functions of brain, eyes, and pancreas. It regulates expression of genes involved in cell proliferation, differentiation, inflammation, oxidative stress management, and neuropathy. Dynamic changes in the sub-cellular localization of Pax6 are proposed to regulate its activity, however, the underlying mechanism remains poorly understood. The oxidative stress mediated changes were studied in sub-cellular localization of Pax6 in cultured cells derived from the eye (cornea) and pancreas...
May 16, 2018: Molecular Biology Reports
https://www.readbyqxmd.com/read/29758877/the-role-of-ppar%C3%AE-in-embryonic-development-of-xenopus-tropicalis-under-triphenyltin-induced-teratogenicity
#6
Jingmin Zhu, Xiao Huang, Hui Jiang, Lingling Hu, Jennifer J Michal, Zhihua Jiang, Huahong Shi
Evidence has shown that triphenyltin (TPT) triggers severe malformations in Xenopus tropicalis embryos, partly due to activation of PPARγ (peroxisome proliferator activated receptor γ) protein. In the present study, we investigated how abundance of pparγ and TPT exposure interact and affect X. tropicalis embryonic development. We observed pparγ expression signals appeared in the neural crest and neural fold, as well as in the brain, eyes and spinal cord organs. Both pparγ overexpression and its Morpholino (MO) knockdown inhibited pax6 (paired box 6) expression, a marker of eye development, and significantly up- and down-regulated lipid and glucose homeostasis related genes, such as lpl (lipoprotein lipase), slc2a4 (solute carrier family 2 (facilitated glucose transporter), member 4) and pck1 (phosphoenolpyruvate carboxykinase 1, cytosolic), thus inducing eye phenotypes...
August 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29758190/conserved-characteristics-of-ocular-refractive-development-did-the-eye-evolve-once
#7
REVIEW
Jacob G Sivak, Jeremy M Sivak
It has been speculated that the unitary eyes of vertebrates and molluscs, and the compound eyes of insects and crustaceans, evolved separately. On the other hand, the common use of rhodopsin as a photoreceptor molecule, and the conservation of Pax6 as a master control gene for eye development, suggest instead that the eye evolved once. Yet, recently the molecular genetics that had seemed to suggest a definitive answer to this evolutionary point has once again become cloudy. Here we propose an alternative approach to addressing the question of eye evolution through comparative analyses of physiological optics...
May 11, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29754932/mild-hypothermia-inhibits-the-notch-3-and-notch-4-activation-and-seizure-after-stroke-in-the-rat-model
#8
Guo-Shuai Yang, Xiao-Yan Zhou, Xue-Fang An, Xuan-Jun Liu, Yan-Jun Zhang, Dan Yu
Ischemic brain injury is an important cause for seizure. Mild hypothermia of the brain or the whole body is an effective way to remit the post-stroke seizure. Our previous study revealed an implication of Notch 1 and 2 in the post-stroke seizure. This study further investigated the involvement of Notch 3 and 4 in post-stroke seizure and the effect of mild hypothermia on these two factors. A global cerebral ischemia (GCI) model was conducted in Sprague Dawley rats. Seizure activity was evaluated by the frequency of seizure attacks, seizure severity scores, and seizure discharges...
May 4, 2018: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29751817/tcf7l2-is-essential-for-neurogenesis-in-the-developing-mouse-neocortex
#9
Olga Chodelkova, Jan Masek, Vladimir Korinek, Zbynek Kozmik, Ondrej Machon
Generation of neurons in the embryonic neocortex is a balanced process of proliferation and differentiation of neuronal progenitor cells. Canonical Wnt signalling is crucial for expansion of radial glial cells in the ventricular zone and for differentiation of intermediate progenitors in the subventricular zone. We detected abundant expression of two transcrtiption factors mediating canonical Wnt signalling, Tcf7L1 and Tcf7L2, in the ventricular zone of the embryonic neocortex. Conditional knock-out analysis showed that Tcf7L2, but not Tcf7L1, is the principal Wnt mediator important for maintenance of progenitor cell identity in the ventricular zone...
May 11, 2018: Neural Development
https://www.readbyqxmd.com/read/29745426/human-neural-stem-cells-dispersed-in-artificial-ecm-form-cerebral-organoids-when-grafted-in-vivo
#10
Reem Basuodan, Anna P Basu, Gavin J Clowry
Human neural stem cells (hNSC) derived from induced pluripotent stem cells can be differentiated into neurons that could be used for transplantation to repair brain injury. In this study we dispersed such hNSC in a three-dimensional artificial extracellular matrix (aECM) and compared their differentiation in vitro and following grafting into the sensorimotor cortex (SMC) of postnatal day (P)14 rat pups lesioned by localised injection of endothelin-1 at P12. After 10-43 days of in vitro differentiation, a few cells remained as PAX6+ neuroprogenitors but many more resembled post-mitotic neurons expressing doublecortin, β-tubulin and MAP2...
May 10, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29731677/aucubin-promotes-differentiation-of-neural-precursor-cells-into-gabaergic-neurons
#11
Miyeoun Song, Hyomin Kim, Sujin Park, Hyockman Kwon, Insil Joung, Yunhee Kim Kwon
Aucubin is a small compound naturally found in traditional medicinal herbs with primarily anti-inflammatory and protective effects. In the nervous system, aucubin is reported to be neuroprotective by enhancing neuronal survival and inhibiting apoptotic cell death in cultures and disease models. Our previous data, however, suggest that aucubin facilitates neurite elongation in cultured hippocampal neurons and axonal regrowth in regenerating sciatic nerves. Here, we investigated whether aucubin facilitates the differentiation of neural precursor cells (NPCs) into specific types of neurons...
April 2018: Experimental Neurobiology
https://www.readbyqxmd.com/read/29725291/neural-progenitors-in-the-developing-neocortex-of-the-northern-tree-shrew-tupaia-belangeri-show-a-closer-relationship-to-gyrencephalic-primates-than-to-lissencephalic-rodents
#12
Sebastian Römer, Hannah Bender, Wolfgang Knabe, Elke Zimmermann, Rudolf Rübsamen, Johannes Seeger, Simone A Fietz
The neocortex is the most complex part of the mammalian brain and as such it has undergone tremendous expansion during evolution, especially in primates. The majority of neocortical neurons originate from distinct neural stem and progenitor cells (NPCs) located in the ventricular and subventricular zone (SVZ). Previous studies revealed that the SVZ thickness as well as the abundance and distribution of NPCs, especially that of basal radial glia (bRG), differ markedly between the lissencephalic rodent and gyrencephalic primate neocortex...
2018: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/29716894/generation-of-an-animal-model-of-pten-hamartoma-tumour-syndrome-in-the-retina
#13
Nobuhiko Tachibana, Yacine Touahri, Rajiv Dixit, Luke Ajay David, Lata Adnani, Robert Cantrup, Tooka Aavani, Rachel O Wong, Cairine Logan, Kyle C Kurek, Carol Schuurmans
PTEN Hamartoma Tumor Syndrome (PHTS) is a heterogeneous group of rare, autosomal dominant disorders associated with PTEN germline mutations. PHTS patients routinely develop hamartomas, which are benign tissue overgrowths comprised of disorganized 'normal' cells. Efforts to generate PHTS animal models have been largely unsuccessful due to the early lethality of homozygous germline mutations in Pten , together with the lack of hamartoma formation in most conditional mutants generated to date. We report herein a novel PHTS mouse model that reproducibly forms hamartoma-like lesions in the central retina by postnatal day 21...
April 24, 2018: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29716531/generation-of-a-pax6-knockout-glioblastoma-cell-line-with-changes-in-cell-cycle-distribution-and-sensitivity-to-oxidative-stress
#14
Beate Hegge, Eva Sjøttem, Ingvild Mikkola
BACKGROUND: The transcription factor PAX6 is expressed in various cancers. In anaplastic astrocytic glioma, PAX6 expression is inversely related to tumor grade, resulting in low PAX6 expression in Glioblastoma, the highest-grade astrocytic glioma. The aim of the present study was to develop a PAX6 knock out cell line as a tool for molecular studies of the roles PAX6 have in attenuating glioblastoma tumor progression. METHODS: The CRISPR-Cas9 technique was used to knock out PAX6 in U251 N cells...
May 2, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29700975/use-of-homeobox-gene-expression-patterns-to-determine-anatomical-regions-of-origin-for-body-surface-tissues-derived-from-adult-mice
#15
Toru Okubo, Ryuhei Hayashi, Shun Shibata, Yuji Kudo, Yoichi Honma, Kohji Nishida
Anatomical regions of the skin have distinct functions and anatomical characteristics, including thicker or thinner epidermis, more or fewer hair follicles, and lighter or darker skin. For a better therapeutic outcome of skin transplantation, site-specific characteristics of grafted tissues need to be taken into account in terms of their functionality and beauty. However, there is no method for evaluating positional information of epidermal cells. Homeobox genes are expressed along the anterior-posterior axis and direct the body plan in the animal development process...
April 26, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29675520/designing-well-defined-photopolymerized-synthetic-matrices-for-three-dimensional-culture-and-differentiation-of-induced-pluripotent-stem-cells
#16
Elisa M Ovadia, David W Colby, April M Kloxin
Induced pluripotent stem cells (iPSCs) are of interest for the study of disease, where these cells can be derived from patients and have the potential to be differentiated into any cell type; however, three-dimensional (3D) culture and differentiation of iPSCs within well-defined synthetic matrices for these applications remains limited. Here, we aimed to establish synthetic cell-degradable hydrogels that allow precise presentation of specific biochemical cues for 3D culture of iPSCs with relevance for hypothesis testing and lineage-specific differentiation...
April 20, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29661885/the-long-non-coding-rna-paupar-promotes-kap1-dependent-chromatin-changes-and-regulates-olfactory-bulb-neurogenesis
#17
Ioanna Pavlaki, Farah Alammari, Bin Sun, Neil Clark, Tamara Sirey, Sheena Lee, Dan J Woodcock, Chris P Ponting, Francis G Szele, Keith W Vance
Many long non-coding RNAs (lncRNAs) are expressed during central nervous system (CNS) development, yet their in vivo roles and mechanisms of action remain poorly understood. Paupar , a CNS-expressed lncRNA, controls neuroblastoma cell growth by binding and modulating the activity of transcriptional regulatory elements in a genome-wide manner. We show here that the Paupar lncRNA directly binds KAP1, an essential epigenetic regulatory protein, and thereby regulates the expression of shared target genes important for proliferation and neuronal differentiation...
April 16, 2018: EMBO Journal
https://www.readbyqxmd.com/read/29661783/conserved-and-divergent-functions-of-pax6-underlie-species-specific-neurogenic-patterns-in-the-developing-amniote-brain
#18
Wataru Yamashita, Masanori Takahashi, Takako Kikkawa, Hitoshi Gotoh, Noriko Osumi, Katsuhiko Ono, Tadashi Nomura
The evolution of unique organ structures is associated with changes in conserved developmental programs. However, characterizing the functional conservation and variation of homologous transcription factors (TFs) that dictate species-specific cellular dynamics has remained elusive. Here, we dissect shared and divergent functions of Pax6 during amniote brain development. Comparative functional analyses revealed that the neurogenic function of Pax6 is highly conserved in the developing mouse and chick pallium, whereas stage-specific binary functions of Pax6 in neurogenesis are unique to mouse neuronal progenitors, consistent with Pax6-dependent temporal regulation of Notch signaling...
April 16, 2018: Development
https://www.readbyqxmd.com/read/29660784/relationship-between-neural-crest-cell-specification-and-rare-ocular-diseases
#19
REVIEW
Monica Akula, Jeong Won Park, Judith A West-Mays
Development of the eye is closely associated with neural crest cell migration and specification. Eye development is extremely complex, as it requires the working of a combination of local factors, receptors, inductors, and signaling interactions between tissues such as the optic cup and periocular mesenchyme (POM). The POM is comprised of neural crest-derived mesenchymal progenitor cells that give rise to numerous important ocular structures including those tissues that form the optic cup and anterior segment of the eye...
April 16, 2018: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29659518/examining-the-genetic-background-of-porcine-muscle-growth-and-development-based-on-transcriptome-and-mirnaome-data
#20
Katarzyna Ropka-Molik, Klaudia Pawlina-Tyszko, Kacper Żukowski, Katarzyna Piórkowska, Grzegorz Żak, Artur Gurgul, Natalia Derebecka, Joanna Wesoły
Recently, selection in pigs has been focused on improving the lean meat content in carcasses; this focus has been most evident in breeds constituting a paternal component in breeding. Such sire-breeds are used to improve the meat quantity of cross-breed pig lines. However, even in one breed, a significant variation in the meatiness level can be observed. In the present study, the comprehensive analysis of genes and microRNA expression profiles in porcine muscle tissue was applied to identify the genetic background of meat content...
April 16, 2018: International Journal of Molecular Sciences
keyword
keyword
13273
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"