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https://www.readbyqxmd.com/read/29760612/trends-in-folic-acid-supplementation-during-pregnancy-the-effect-on-allergy-development-in-children
#1
Anna Socha-Banasiak, Barbara Kamer, Krzysztof Pacześ, Barbara Ślusarek, Bartosz Pawlikowski, Elżbieta Czkwianianc
Introduction: The results of some previous studies suggested that maternal folate supplementation during pregnancy may contribute to allergy development in offspring. Aim: This study was performed to examine the influence of maternal folic acid intake prior to and during pregnancy on the development of various types of allergy in children taking into account the timing and dosage of supplemented folate. Material and methods: The retrospective study was performed between 2010 and 2014 in 307 child-mother pairs (203 allergic children and 104 children without allergy symptoms, aged 2-72 months)...
April 2018: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/29760157/methyl-cpg-binding-protein-2-mediates-antifibrotic-effects-in-scleroderma-fibroblasts
#2
Ye He, Pei-Suen Tsou, Dinesh Khanna, Amr H Sawalha
OBJECTIVE: Emerging evidence supports a role for epigenetic regulation in the pathogenesis of scleroderma (SSc). We aimed to assess the role of methyl-CpG-binding protein 2 (MeCP2), a key epigenetic regulator, in fibroblast activation and fibrosis in SSc. METHODS: Dermal fibroblasts were isolated from patients with diffuse cutaneous SSc (dcSSc) and from healthy controls. MeCP2 expression was measured by qPCR and western blot. Myofibroblast differentiation was evaluated by gel contraction assay in vitro...
May 14, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29751006/mirnas-are-required-for-langerhans-cell-skin-and-lung-resident-macrophage-ontogeny
#3
Yi Yao, Carly Martin, Congcong Yin, Chunyuan Guo, Zheng Dong, Li Zhou, Qing-Sheng Mi
Our study demonstrates that miRNAs serve as critical epigenetic regulators in the ontogeny of LCs and TRMs in the skin and lungs, suggesting that miRNAs may be promising targets for LC and TRM-related allergic diseases.
May 8, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29736807/quantitative-detection-of-low-abundance-transcripts-at-single-cell-level-in-human-epidermal-keratinocytes-by-digital-droplet-reverse-transcription-polymerase-chain-reaction
#4
Frédéric Auvré, Julien Coutier, Michèle T Martin, Nicolas O Fortunel
Genetic and epigenetic characterization of the large cellular diversity observed within tissues is essential to understanding the molecular networks that ensure the regulation of homeostasis, repair, and regeneration, but also pathophysiological processes. Skin is composed of multiple cell lineages and is therefore fully concerned by this complexity. Even within one particular lineage, such as epidermal keratinocytes, different immaturity statuses or differentiation stages are represented, which are still incompletely characterized...
May 8, 2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29726727/epigenetic-therapy-and-dermatologic-disease-moving-beyond-ctcl
#5
Joshua S Mervis, Jean S McGee
The epigenetic regulation of gene expression is accomplished primarily through DNA methylation, histone modification, and gene silencing via the action of microRNAs. While previously very difficult to study, the field of epigenetics has been greatly facilitated by recent technological innovations. Alterations in the epigenome and epigenetic machinery are now known to be present in a variety of diseases, most notably cancers. Moreover, evidence has emerged that epigenetic dysregulation plays a causative role in disease pathogenesis...
May 4, 2018: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/29722151/specifying-neural-crest-cells-from-chromatin-to-morphogens-and-factors-in-between
#6
REVIEW
Crystal D Rogers, Shuyi Nie
Neural crest (NC) cells are a stem-like multipotent population of progenitor cells that are present in vertebrate embryos, traveling to various regions in the developing organism. Known as the "fourth germ layer", these cells originate in the ectoderm between the neural plate (NP), which will become the brain and spinal cord, and nonneural tissues that will become the skin and the sensory organs. NC cells can differentiate into more than 30 different derivatives in response to the appropriate signals including, but not limited to, craniofacial bone and cartilage, sensory nerves and ganglia, pigment cells, and connective tissue...
May 3, 2018: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/29716408/-health-effects-of-sour-cherries-with-unique-polyphenolic-composition-in-their-fruits
#7
Attila Hegedűs, Nóra Papp, Anna Blázovics, Éva Stefanovitsné Bányai
Health effects of fruit consumption are confirmed by many studies. Such effects are attributed to the polyphenolic compounds accumulating in fruit skin and mesocarp tissues. They contribute to the regulation on transcriptional, post-transcriptional and epigenetic levels. Since people consume much less fruits than the recommended quantities, a new approach includes the promotion of super fruits that are extremely rich sources of specific health compounds. A comparative analysis of Hungarian stone fruit cultivars detected a huge variability in fruit in vitro antioxidant capacity and total polyphenolic content...
May 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29707138/enhanced-intratumoral-expression-of-rnf2-is-a-favorable-prognostic-factor-for-patients-with-cutaneous-melanoma
#8
Łukasz Kuźbicki, Dariusz Lange, Agata Stanek-Widera, Agnieszka Glińska, Barbara W Chwirot
Recent studies involving melanoma cell lines suggest that enhanced expression of epigenetic regulator RNF2 supports proliferation and promotes metastasis. However, it is not clear to what extent those data apply to disease progression and prognosis for melanoma patients. Therefore the aim of the present study was to assess the prognostic power of RNF2 intratumoral expression by melanoma cells. RNF2 was detected immunohistochemically in standard formalin-fixed paraffin-embedded samples of 9 benign nevi, 60 melanomas and 24 nodal metastases...
April 3, 2018: Oncotarget
https://www.readbyqxmd.com/read/29696511/tnf%C3%AE-in-the-trigeminal-nociceptive-system-is-critical-for-temporomandibular-joint-pain
#9
Qian Bai, Sufang Liu, Hui Shu, Yuanyuan Tang, Sanjeeth George, Tieli Dong, Brian L Schmidt, Feng Tao
Previous studies have shown that tumor necrosis factor alpha (TNFα) is significantly increased in complete Freund's adjuvant (CFA)-treated temporomandibular joint (TMJ) tissues. However, it is unclear whether TNFα in the trigeminal nociceptive system contributes to the development of TMJ pain. In the present study, we investigated the role of TNFα in trigeminal ganglia (TG) and spinal trigeminal nucleus caudalis (Sp5C) in CFA-induced inflammatory TMJ pain. Intra-TMJ injection of CFA (10 μl, 5 mg/ml) induced inflammatory pain in the trigeminal nerve V2- and V3-innervated skin areas of WT mice, which was present on day 1 after CFA and persisted for at least 10 days...
April 25, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29685765/uv-induced-dna-methyltransferase-1-promotes-hypermethylation-of-tissue-inhibitor-of-metalloproteinase-2-in-the-human-skin
#10
Ha-Young Kim, Dong Hun Lee, Mi Hee Shin, Hye Sun Shin, Min-Kyoung Kim, Jin Ho Chung
BACKGROUND: Ultraviolet (UV) radiation has been reported to influence epigenetic regulation by affecting the expression of genome regulators such as DNA methyltransferase 1 (DNMT1). DNMT1 is a "gene silencer," that is responsible for the maintenance of DNA methylation and contribution to de novo methylation. Implications of DNMT1's involvement in the expression of UV-induced proteins have been previously reported. OBJECTIVE: To investigate for changes in DNA methylation-associated gene expressions by UV and to analyze the role of DNA methylation in the suppression of TIMP2 in UV-irradiated human skin...
March 15, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29670281/identification-of-the-tumour-transition-states-occurring-during-emt
#11
Ievgenia Pastushenko, Audrey Brisebarre, Alejandro Sifrim, Marco Fioramonti, Tatiana Revenco, Soufiane Boumahdi, Alexandra Van Keymeulen, Daniel Brown, Virginie Moers, Sophie Lemaire, Sarah De Clercq, Esmeralda Minguijón, Cédric Balsat, Youri Sokolow, Christine Dubois, Florian De Cock, Samuel Scozzaro, Federico Sopena, Angel Lanas, Nicky D'Haene, Isabelle Salmon, Jean-Christophe Marine, Thierry Voet, Panagiota A Sotiropoulou, Cédric Blanpain
In cancer, the epithelial-to-mesenchymal transition (EMT) is associated with tumour stemness, metastasis and resistance to therapy. It has recently been proposed that, rather than being a binary process, EMT occurs through distinct intermediate states. However, there is no direct in vivo evidence for this idea. Here we screen a large panel of cell surface markers in skin and mammary primary tumours, and identify the existence of multiple tumour subpopulations associated with different EMT stages: from epithelial to completely mesenchymal states, passing through intermediate hybrid states...
April 18, 2018: Nature
https://www.readbyqxmd.com/read/29650963/epigenetic-control-of-il-23-expression-in-keratinocytes-is-important-for-chronic-skin-inflammation
#12
Hui Li, Qi Yao, Alberto Garcia Mariscal, Xudong Wu, Justus Hülse, Esben Pedersen, Kristian Helin, Ari Waisman, Caroline Vinkel, Simon Francis Thomsen, Alexandra Avgustinova, Salvador Aznar Benitah, Paola Lovato, Hanne Norsgaard, Mette Sidsel Mortensen, Lone Veng, Björn Rozell, Cord Brakebusch
The chronic skin inflammation psoriasis is crucially dependent on the IL-23/IL-17 cytokine axis. Although IL-23 is expressed by psoriatic keratinocytes and immune cells, only the immune cell-derived IL-23 is believed to be disease relevant. Here we use a genetic mouse model to show that keratinocyte-produced IL-23 is sufficient to cause a chronic skin inflammation with an IL-17 profile. Furthermore, we reveal a cell-autonomous nuclear function for the actin polymerizing molecule N-WASP, which controls IL-23 expression in keratinocytes by regulating the degradation of the histone methyltransferases G9a and GLP, and H3K9 dimethylation of the IL-23 promoter...
April 12, 2018: Nature Communications
https://www.readbyqxmd.com/read/29625385/targeting-macrophage-immunometabolism-dawn-in-the-darkness-of-sepsis
#13
REVIEW
V Kumar
Sepsis is known since the time (470 BC) of great Greek physician, Hippocrates. Advancement in modern medicine and establishment of separate branches of medical science dealing with sepsis research have improved its outcome. However, mortality associated with sepsis still remains higher (25-30%) that further increases to 40-50% in the presence of septic shock. For example, sepsis-associated deaths account more in comparison to deaths-associated with myocardial-infarction and certain cancers (i.e. breast and colorectal cancer)...
May 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29603397/role-of-mir-31-and-satb2-in-arsenic-induced-malignant-beas-2b-cell-transformation
#14
Qiao Yi Chen, Jinquan Li, Hong Sun, Feng Wu, Yusha Zhu, Thomas Kluz, Ashley Jordan, Thomas DesMarais, Xiaoru Zhang, Anthony Murphy, Max Costa
Arsenic is a naturally occurring and highly potent metalloid known to elicit serious public health concerns. Today, approximately 200 million people around the globe are exposed to arsenic-contaminated drinking water at levels greater than the World Health Organization's recommended limit of 10 parts per billion. As a class I human carcinogen, arsenic exposure is known to elicit various cancers, including lung, skin, liver, and kidney. Current evidence suggests that arsenic is capable of inducing both genotoxic and cytotoxic injury, as well as activating epigenetic pathways to induce carcinogenesis...
March 30, 2018: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29603113/fucoxanthin-elicits-epigenetic-modifications-nrf2-activation-and-blocking-transformation-in-mouse-skin-jb6-p-cells
#15
Yuqing Yang, Irene Yang, Mingnan Cao, Zheng-Yuan Su, Renyi Wu, Yue Guo, Mingzhu Fang, Ah-Ng Kong
Nuclear factor erythroid-2-related factor-2 (Nrf2 or NFE2L2) is a master regulator of the anti-oxidative stress response, which is involved in the defense against many oxidative stress/inflammation-mediated diseases, including anticancer effects elicited by an increasing number of natural products. Our previous studies showed that the epigenetic modification of the Nrf2 gene plays a key role in restoring the expression of Nrf2. In this study, we aimed to investigate the epigenetic regulation of Nrf2 by astaxanthin (AST) and fucoxanthin (FX), carotenoids which are abundant in microalgae and seaweeds, in mouse skin epidermal JB6 P+ cells...
February 20, 2018: AAPS Journal
https://www.readbyqxmd.com/read/29599340/myelodysplastic-syndrome-and-sweet-s-syndrome-are-associated-with-a-mutation-in-isocitrate-dehydrogenase-1
#16
Rose Snyder, Tiffany Libby, Patricia Raciti, Bijal Amin, Mark Jacobson, Dinesh Rakheja, Kirsten Fleming, Matthias Bartenstein, Changcheng Zhu, Swati Goel, Amit K Verma, Aditi Shastri
BACKGROUND: Sweet's syndrome (SS) is a febrile neutrophilic dermatosis that has been clinically linked to hematological malignancies, particularly myelodysplastic syndrome (MDS), in a number of case series. Many epigenetic changes underlying MDS have been identified, such as a mutation in the isocitrate dehydrogenase 1 (IDH1) gene, which causes DNA hypermethylation and alteration of a number of genes that lead to leukemogenesis. However, the pathogenesis of malignancy-associated SS is unknown...
April 2018: Anticancer Research
https://www.readbyqxmd.com/read/29587831/childhood-fish-oil-supplementation-modifies-associations-between-traffic-related-air-pollution-and-allergic-sensitisation
#17
Anna L Hansell, Ioannis Bakolis, Christine T Cowie, Elena G Belousova, Kitty Ng, Christina Weber-Chrysochoou, Warwick J Britton, Stephen R Leeder, Euan R Tovey, Karen L Webb, Brett G Toelle, Guy B Marks
BACKGROUND: Studies of potential adverse effects of traffic related air pollution (TRAP) on allergic disease have had mixed findings. Nutritional studies to examine whether fish oil supplementation may protect against development of allergic disease through their anti-inflammatory actions have also had mixed findings. Extremely few studies to date have considered whether air pollution and dietary factors such as fish oil intake may interact, which was the rationale for this study. METHODS: We conducted a secondary analysis of the Childhood Asthma Prevention Study (CAPS) birth cohort, where children were randomised to fish oil supplementation or placebo from early life to age 5 years...
March 27, 2018: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/29579252/epigenetic-modulation-as-a-therapy-in-systemic-sclerosis
#18
Steven O'Reilly
SSc is an autoimmune idiopathic disease in which there is an inflammatory component driving fibrosis. The chief cell involved is the myofibroblast, which when activated secretes copious amounts of extracellular matrix that forms deposits, leading to stiffness and fibrosis. The fibrosis is most prevalent in the skin and lungs. In recent years epigenetic modifications have been uncovered that positively and negatively regulate the genesis of the myofibroblasts and that can be activated and regulated by a variety of cytokines and hormones...
March 22, 2018: Rheumatology
https://www.readbyqxmd.com/read/29545866/gsk126-ezh2-inhibitor-interferes-with-ultraviolet-a-radiation-induced-photoaging-of-human-skin-fibroblast-cells
#19
Haiyan Qin, Guang Zhang, Lianbo Zhang
Polycomb group genes (PcG) encode chromatin modification proteins that are involved in the epigenetic regulation of cell differentiation, proliferation and the aging processes. The key subunit of the PcG complex, enhancer of zeste 2 polycomb repressive complex 2 subunit (EZH2), has a central role in a variety of mechanisms, such as the formation of chromatin structure, gene expression regulation and DNA damage. In the present study, ultraviolet A (UVA) was used to radiate human dermal fibroblasts in order to construct a photo-aged cell model...
April 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29542811/ten-eleven-translocation-2-regulates-dna-hydroxymethylation-status-and-psoriasiform-dermatitis-progression-in-mice
#20
Xin Wang, Xinxin Liu, Xiaoru Duan, Ke Zhu, Song Zhang, Lu Gan, Nian Liu, Himanshu Jaypaul, Johanna T Makamure, Zhangyin Ming, Hongxiang Chen
Epigenetics plays an important role in the development and progression of many diseases. There is increasing evidence for the importance of epigenetic modifications in the progression of psoriasis. The aim of this study was to examine the role and potential mechanism of action of 5-hydroxymethylcytosine (5-hmC) and ten-eleven translocation-2 (TET2) in psoriasiform dermatitis in mice. Immunohistochemical staining was performed on psoriasis patients and healthy controls. Topical application of imiquimod cream to the dorsal skin of mice was used to induce psoriasiform dermatitis...
March 15, 2018: Acta Dermato-venereologica
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