keyword
MENU ▼
Read by QxMD icon Read
search

Retinoids

keyword
https://www.readbyqxmd.com/read/29688151/bexarotene-attenuates-early-brain-injury-via-inhibiting-micoglia-activation-through-ppar%C3%AE-after-experimental-subarachnoid-hemorrhage
#1
Li Tu, Xiu-Lin Yang, Qian Zhang, Qian Wang, Tian Tian, Dan Liu, Xiang Qu, Jin-Yong Tian
Objectives Early brain injury (EBI) is considered to be one of the main causes of poor outcome in subarachnoid hemorrhage (SAH) patients. Bexarotene is an agonist of retinoid X receptor and plays a protective role in central nervous system diseases. However, the exact role of bexarotene in SAH has not been reported. Therefore, the present study was to determine whether bexarotene administration attenuate EBI after SAH in mice and to explore the underlying mechanism. Methods SAH was induced in C57BL/6 mice by endovascular perforation...
April 24, 2018: Neurological Research
https://www.readbyqxmd.com/read/29686061/prevention-of-hepatocellular-carcinoma-by-targeting-mycn-positive-liver-cancer-stem-cells-with-acyclic-retinoid
#2
Xian-Yang Qin, Harukazu Suzuki, Masao Honda, Hikari Okada, Shuichi Kaneko, Ikuyo Inoue, Etsuko Ebisui, Kosuke Hashimoto, Piero Carninci, Keita Kanki, Hideki Tatsukawa, Naoto Ishibashi, Takahiro Masaki, Tomokazu Matsuura, Hiroyuki Kagechika, Kan Toriguchi, Etsuro Hatano, Yohei Shirakami, Goshi Shiota, Masahito Shimizu, Hisataka Moriwaki, Soichi Kojima
Hepatocellular carcinoma (HCC) is a highly lethal cancer that has a high rate of recurrence, in part because of cancer stem cell (CSC)-dependent field cancerization. Acyclic retinoid (ACR) is a synthetic vitamin A-like compound capable of preventing the recurrence of HCC. Here, we performed a genome-wide transcriptome screen and showed that ACR selectively suppressed the expression of MYCN, a member of the MYC family of basic helix-loop-helix-zipper transcription factors, in HCC cell cultures, animal models, and liver biopsies obtained from HCC patients...
April 23, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29684583/a-novel-rpe65-inhibitor-cu239-suppresses-visual-cycle-and-prevents-retinal-degeneration
#3
Younghwa Shin, Gennadiy Moiseyev, Konstantin Petrukhin, Christopher L Cioffi, Parthasarathy Muthuraman, Yusuke Takahashi, Jian-Xing Ma
The retinoid visual cycle is an ocular retinoid metabolism specifically dedicated to support vertebrate vision. The visual cycle serves not only to generate light-sensitive visual chromophore 11-cis-retinal, but also to clear toxic byproducts of normal visual cycle (i.e. all-trans-retinal and its condensation products) from the retina, ensuring both the visual function and the retinal health. Unfortunately, various conditions including genetic predisposition, environment and aging may attribute to a functional decline of the all-trans-retinal clearance...
April 20, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29681823/successful-treatment-of-advanced-primary-cutaneous-peripheral-t-cell-lymphoma-with-oral-bexarotene-monotherapy
#4
Yota Sato, Taku Fujimura, Yumi Kambayashi, Akira Hashimoto, Setsuya Aiba
Bexarotene is a third-generation retinoid X receptor-selective retinoid that is widely used for the early treatment of advanced-stage cutaneous T-cell lymphomas. In this report, we describe a case of successful treatment of advanced primary cutaneous peripheral T-cell lymphoma not otherwise specified (PTCL-NOS) with oral bexarotene monotherapy. After the administration of oral bexarotene at a dose of 300 mg/m2 /day, all skin lesions and lymph nodes regressed, and complete remission was achieved for 1 year. Our case suggested that bexarotene monotherapy could be one of the possible therapies for the treatment of primary cutaneous PTCL-NOS...
January 2018: Case Reports in Oncology
https://www.readbyqxmd.com/read/29680643/phosphorylation-of-nuclear-factor-erythroid-2-like-2-nfe2l2-in-mammary-tissue-of-holstein-cows-during-the-periparturient-period-is-associated-with-mrna-abundance-of-antioxidant-gene-networks
#5
L Q Han, Z Zhou, Y Ma, F Batistel, J S Osorio, J J Loor
Changes in the production of reactive oxygen species in the mammary gland of dairy cows during the periparturient period could lead to oxidative stress and potentially impair mammary function. Phosphorylation of the transcription factor nuclear factor erythroid 2-like 2 (NFE2L2), also known as nuclear factor-E2-related factor 2, controls mRNA abundance of genes encoding antioxidant proteins and enzymes. The hypothesis was that NFE2L2 phosphorylation status and target gene mRNA abundance in the mammary gland of dairy cows is altered around parturition...
April 18, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29679619/a-global-perspective-on-carotenoids-metabolism-biotechnology-and-benefits-for-nutrition-and-health
#6
REVIEW
Manuel Rodriguez Concepcion, Javier Avalos, M Luisa Bonet, Albert Boronat, Lourdes Gomez-Gomez, Damaso Hornero-Mendez, M Carmen Limon, Antonio J Meléndez-Martínez, Begoña Olmedilla-Alonso, Andreu Palou, Joan Ribot, Maria J Rodrigo, Lorenzo Zacarias, Changfu Zhu
Carotenoids are lipophilic isoprenoid compounds synthesized by all photosynthetic organisms and some non-photosynthetic bacteria and fungi. With some notable exceptions, animals (including humans) do not produce carotenoids de novo but take them in their diets. In photosynthetic systems carotenoids are essential for photoprotection against excess light and contribute to light harvesting, but perhaps they are best known for their properties as natural pigments in the yellow to red range. Carotenoids can be associated to fatty acids, sugars, proteins, or other compounds that can change their physical and chemical properties and influence their biological roles...
April 18, 2018: Progress in Lipid Research
https://www.readbyqxmd.com/read/29673115/the-nuclear-retinoid-related-orphan-receptor-ror%C3%AE-controls-circadian-thermogenic-programming-in-white-fat-depots
#7
Chloé Monnier, Martine Auclair, Gala Le Cam, Marie-Pauline Garcia, Bénédicte Antoine
The RORα-deficient staggerer (sg/sg) mouse is lean and resistant to diet-induced obesity. Its thermogenic activity was shown to be increased not only in brown adipose tissue (BAT), but also in subcutaneous white adipose tissue (WAT) where UCP1 content was enhanced, however, without Prdm16 coexpression. Our observation of partial multilocular lipid morphology of WAT in sg/sg mice both in the inguinal and perigonadal sites led us to focus on the phenotype of both fat depots. Because RORα is a nuclear factor acting in the clock machinery, we looked at the circadian expression profile of genes involved in thermogenesis and browning in WAT and BAT depots of sg/sg and WT mice, through real-time quantitative PCR and western blotting...
April 2018: Physiological Reports
https://www.readbyqxmd.com/read/29667796/isotretinoin-the-ups-are-just-as-troubling-as-the-downs
#8
Jay M Truitt, Jason S Reichenberg, Kevin G Sharghi, Shirlene M Sampson, Randall K Roenigk, Michelle Magid
INTRODUCTION: Isotretinoin, previously marketed as Accutane®, is an oral retinoid medication that is used to treat acne and other cutaneous disorders. Although the data is conflicting, previous reports suggest a causal relationship between isotretinoin and depression. When reviewing these previous reports, many patients who were diagnosed as 'depressed' did not undergo a thorough psychiatric evaluation and/or were not diagnosed according to the criteria of the Diagnostic and Statistical Manual of Mental Disorders (DSM)...
April 18, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29666772/frizzled-related-proteins-4-sfrp4-rs1802073g-allele-predicts-the-elevated-serum-lipid-levels-during-acitretin-treatment-in-psoriatic-patients-from-hunan-china
#9
Xingchen Zhou, Wu Zhu, Minxue Shen, Yijing He, Cong Peng, Yehong Kuang, Juan Su, Shuang Zhao, Xiang Chen, Wangqing Chen
Background: Acitretin is a second-generation synthetic retinoid, and is widely used for treating the severe psoriasis vulgaris. However, it should be chosen with caution for its cardiovascular risk, and it is reported that acitretin may increase the serum lipids. The purpose of this study is to investigate the relationship between the Frizzled-related proteins 4 (SFRP4) rs1802073 polymorphism and the changes of serum lipids in Chinese psoriatic patients during the treatment with acitretin...
2018: PeerJ
https://www.readbyqxmd.com/read/29666392/synthetic-9-cis-beta-carotene-inhibits-photoreceptor-degeneration-in-cultures-of-eye-cups-from-rpe65rd12-mouse-model-of-retinoid-cycle-defect
#10
Ifat Sher, Adi Tzameret, Sara Peri-Chen, Victoria Edelshtain, Michael Ioffe, Alon Sayer, Ludmila Buzhansky, Ehud Gazit, Ygal Rotenstreich
The retinoid cycle enzymes regenerate the visual chromophore 11-cis retinal to enable vision. Mutations in the genes encoding the proteins of the retinoid cycle are the leading cause for recessively inherited retinal dystrophies such as retinitis pigmentosa, Leber congenital amaurosis, congenital cone-rod dystrophy and fundus albipunctatus. Currently there is no treatment for these blinding diseases. In previous studies we demonstrated that oral treatment with the 9-cis-β-carotene rich Dunaliella Bardawil algae powder significantly improved visual and retinal functions in patients with retinitis pigmentosa and fundus albipunctatus...
April 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29661715/expression-and-clinical-significance-of-retinoid-x-receptor-%C3%AE-in-esophageal-carcinoma
#11
Hong-Yue Ren, Yi-He Guo, Li-Min Yang, Tai-Jian Dai, Ming-Zhu Lin, Le Yu, Qi-Gan Zhu, Jia-Rong Meng
PURPOSE: Esophageal carcinoma (EC) is one of the most aggressive type cancers and dysregulation of retinoid X receptor α (RXRα) involves various tumors. However, the relationship of RXRα with the clinicopathological factors of EC, particularly prognostic characteristics, remains unclear. This present study was to evaluate the effect of RXRα expression in the development of EC. METHODS: The mRNA and protein expression level of RXRα in EC and normal esophageal tissues using reverse transcription-polymerase chain reaction (RT-PCR) and Western blot, respectively...
March 28, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29659842/insights-into-the-pathogenesis-of-dominant-retinitis-pigmentosa-associated-with-a-d477g-mutation-in-rpe65
#12
Elliot H Choi, Susie Suh, Christopher L Sander, Christian J Ortiz Hernandez, Elizabeth R Bulman, Nimesh Khadka, Zhiqian Dong, Wuxian Shi, Krzysztof Palczewski, Philip D Kiser
RPE65 is the essential trans-cis isomerase of the classical retinoid (visual) cycle. Mutations in RPE65 give rise to severe retinal dystrophies, most of which are associated with loss of protein function and recessive inheritance. The only known exception is a c.1430G>A (D477G) mutation that gives rise to dominant retinitis pigmentosa with delayed onset and choroidal and macular involvement. Position 477 is distant from functionally critical regions of RPE65. Hence, the mechanism of D477G pathogenicity remains unclear, although protein misfolding and aggregation mechanisms have been suggested...
April 12, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29657672/efficacy-and-safety-evaluation-of-high-density-intense-pulsed-light-in-the-treatment-of-grades-ii-and-iv-acne-vulgaris-as-monotherapy-in-dark-skinned-women-of-child-bearing-age
#13
Ajay J Deshpande
Background: Acne vulgaris is a self-limiting, chronic inflammatory disorder of the pilosebaceous unit characterized by exacerbations and remissions. It is often the early manifestation of puberty, and in girls it appears relatively early. In women, acne tends to become aggravated during the menstrual period, pregnancy, and in those who are on progesterone. Acne treatment is divided into two parts: topical and systemic. For Grades 1 and 2 acne, topical treatment is sufficient, while for Grades 3 and 4 acne, systemic drugs such as tetracyclines and retinoids are required to control the symptoms...
April 2018: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/29656117/baicalin-modulates-the-treg-teff-balance-to-alleviate-uveitis-by-activating-the-aryl-hydrocarbon-receptor
#14
Wenjie Zhu, Xiaoqing Chen, Jianfeng Yu, Yichen Xiao, Yingqi Li, Shangtao Wan, Wenru Su, Dan Liang
Autoimmune uveitis is a sight-threatening ocular inflammatory disorder. Immunological inflammation is regarded as the key to pathogenesis in autoimmune uveitis. Baicalin, the major bioactive component of Scutellaria baicalensis, possesses immunomodulatory properties. However, the role of baicalin in uveitis and its underlying mechanisms remain unclear. In the current study, we found that baicalin treatment obviously inhibited the intraocular inflammatory process in mice with experimental autoimmune uveitis, along with clear declines in infiltrated inflammatory cells and inflammatory cytokine transcription in the retina and draining lymph nodes...
April 12, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29655815/evidence-for-retinoic-acid-involvement-in-the-regulation-of-vitellogenesis-in-the-fresh-water-edible-crab-oziotelphusa-senex-senex
#15
B P Girish, C H Swetha, M Srilatha, M Hemalatha, P Sreenivasula Reddy
The possible involvement of 13-cis retinoic acid (CRA) in the regulation of ovarian development in Oziotelphusa senex senex was investigated. Injection of CRA, into avitellogenic crabs significantly increased ovarian index, oocyte diameter and ovarian vitellogenin levels. Injection of CRA also resulted in a significant increase in the secretory rates of mandibular organs and Y-organs and circulatory levels of the methyl farnesoate and ecdysteroids. Further, administration of CRA into avitellogenic crabs produced higher amounts of Retinoid X Receptor, Ecdysteroid Receptor, E75 and vitellogenin mRNAs in the hepatopancreas...
April 12, 2018: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29644198/olmsted-syndrome-with-lateral-supraciliary-madarosis-and-clubbing-a-rare-case-report
#16
Md Zeeshan, Abhijeet K Jha, R K P Chaudhary
Olmsted syndrome (OS) is a rare congenital, mutilating palmoplantar keratoderma first described by Olmsted in 1927. It starts in the neonatal period or in childhood, and has a slow but progressive disabling course. We report the case of a 16-year-old boy who presented with keratoderma of the palm and soles since childhood with lateral supraciliary madarosis and clubbing. The patient was started on oral retinoids and topical keratolytics and had partial improvement in 2 months. Keratoderma of the palms and soles along with lateral supraciliary madarosis and clubbing in our case is a very rare finding, and to the best of our knowledge, has not been reported so far...
March 2018: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/29643385/inhibition-of-cancer-stem-cell-like-cells-by-a-synthetic-retinoid
#17
Junwei Chen, Xin Cao, Quanlin An, Yao Zhang, Ke Li, Wenting Yao, Fuchun Shi, Yanfang Pan, Qiong Jia, Wenwen Zhou, Fang Yang, Fuxiang Wei, Ning Wang, Biao Yu
Developing novel drugs that can abrogate the growth and metastasis of malignant tumors is a major challenge for cancer researchers. Here we describe a novel synthetic retinoid, namely WYC-209, which inhibits proliferation of malignant murine melanoma tumor-repopulating cells (TRCs), known to resist conventional drug treatment, with an IC50 of 0.19 μM in a dose-dependent manner. WYC-209 also inhibits proliferation of TRCs of human melanoma, lung cancer, ovarian cancer, and breast cancer in culture. Interestingly, the treated TRCs fail to resume growth even after the drug washout...
April 11, 2018: Nature Communications
https://www.readbyqxmd.com/read/29626089/stearic-acid-induces-cd11c-expression-in-proinflammatory-macrophages-via-epidermal-fatty-acid-binding-protein
#18
Jun Zeng, Yuwen Zhang, Jiaqing Hao, Yanwen Sun, Shujun Liu, David A Bernlohr, Edward R Sauter, Margot P Cleary, Jill Suttles, Bing Li
Obesity is associated with elevated levels of free fatty acids (FAs) and proinflammatory CD11c+ macrophages. However, whether and how free FAs contribute to CD11c+ macrophage differentiation and proinflammatory functions remain unclear. Here we report that dietary saturated FAs, but not unsaturated FAs, promoted the differentiation and function of CD11c+ macrophages. Specifically, we demonstrated that stearic acid (SA) significantly induced CD11c expression in monocytes through activation of the nuclear retinoid acid receptor...
April 6, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29625456/local-s100a8-levels-correlate-with-recurrence-of-experimental-autoimmune-uveitis-and-promote-pathogenic-t-cell-activity
#19
Juan Yun, Tong Xiao, Lei Zhou, Roger W Beuerman, Juanjuan Li, Yuan Zhao, Amir Hadayer, Xiaomin Zhang, Deming Sun, Henry J Kaplan, Hui Shao
Purpose: To investigate the role of damage-associated molecular patterns (DAMPs) in recurrent experimental autoimmune uveitis (EAU). Methods: Recurrent EAU was induced in Lewis rats by interphotoreceptor retinoid-binding protein (IRBP) R16-peptide specific T cells (tEAU). Aqueous humor and serum samples were kinetically collected and DAMPs examined by quantitative proteomics, Western blot analysis, and ELISA. tEAU rats were treated with S100 inhibitor paquinimod followed by disease evaluation...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29624848/autofluorescence-based-optical-biopsy-an-effective-diagnostic-tool-in-hepatology
#20
Anna Cleta Croce, Andrea Ferrigno, Giovanni Bottiroli, Mariapia Vairetti
Autofluorescence emission of liver tissue depends on the presence of endogenous biomolecules able to fluoresce under suitable light excitation. Overall autofluorescence emission contains much information of diagnostic value, because it is the sum of individual autofluorescence contributions from fluorophores involved in metabolism, for example NAD(P)H, flavins, lipofuscins, retinoids, porphyrins, bilirubin and lipids, or in structural architecture, for example fibrous proteins, in close relationship with normal, altered or diseased conditions of the liver...
April 6, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
keyword
keyword
16713
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"