keyword
MENU ▼
Read by QxMD icon Read
search

Pigment

keyword
https://www.readbyqxmd.com/read/28340214/knuckle-pigmentation-vitamin-b12-deficiency
#1
Pannu Ak
No abstract text is available yet for this article.
March 17, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28340146/effect-of-broiler-breeders-fed-with-corn-or-sorghum-diet-and-canthaxanthin-supplementation-on-production-and-reproductive-performance
#2
C E V Bonilla, A P Rosa, A Londero, C B S Giacomini, C Orso, M O Fernandes, S J Paixão, D V Bonamigo
This study was designed to evaluate the effect of corn or sorghum diet and canthaxanthin (CX) supplementation on performance in broiler breeders. A total of 440 females with similar body weight (BW) (3.71 ± 0.14 kg) and 60 roosters were placed in an open-sided house with 20 pens, randomly distributed in a factorial arrangement (2 × 2). There were 4 diets of 2 ingredients; corn (CO) or sorghum (SO) and 2 levels of CX; 6 mg/kg (CX) and 0 mg/kg (NCX) totaling 5 replicate pens of 22 females and 3 males each, from 42 to 65 wk, divided in 2 periods (from wk 42 to 53 and wk 54 to 65)...
March 4, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339779/effect-of-the-combination-of-white-and-red-led-lighting-during-incubation-on-layer-broiler-and-pekin-duck-hatchability
#3
G S Archer, D Jeffrey, Z Tucker
Previous research has shown that providing light during incubation can have positive effects on hatchability and chick quality; however, white light alone has been observed to improve these factors only in pigmented broiler eggs and non-pigmented white layer eggs. Monochromatic red light has been shown to improve hatchability in layer eggs. Therefore the objective of this study was to utilize one light fixture that emitted both white and monochromatic red light to determine if this one light source could improve hatchability in both types of chicken eggs and pigmented Pekin duck egg...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339057/gpr143-mutations-in-chinese-patients-with-ocular-albinism-type-1
#4
Xiuhua Jia, Jin Yuan, Xiaoyun Jia, Shiqi Ling, Shiqiang Li, Xiangming Guo
The aim of the present study was to evaluate mutations of the G protein-coupled receptor 143 (GPR143) gene for ocular albinism type 1 (OA1) in Chinese patients. For the current study, 8 patients with OA1 were selected from the database of ocular genetic diseases. Genomic DNA of OA1 was prepared from venous leukocytes collected from the patients. Cycle sequencing was used to analyze the exons and adjacent introns of GPR143. The variation detected was analyzed by bidirectional DNA sequencing and further evaluated in 96 controls using heteroduplex‑single strand conformational polymorphism analysis...
March 23, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338881/mdhb1-down-regulation-activates-anthocyanin-biosynthesis-in-the-white-fleshed-apple-cultivar-granny-smith
#5
Yonghua Jiang, Cuihua Liu, Dan Yan, Xiaohong Wen, Yanli Liu, Haojie Wang, Jieyu Dai, Yujie Zhang, Yanfei Liu, Bin Zhou, Xiaolin Ren
Coloration in apple (Malus×domestica) flesh is mainly caused by the accumulation of anthocyanin. Anthocyanin is biosynthesized through the flavonoid pathway and regulated by MYB, bHLH, and WD40 transcription factors (TFs). Here, we report that the HD-Zip I TF MdHB1 was also involved in the regulation of anthocyanin accumulation. MdHB1 silencing caused the accumulation of anthocyanin in 'Granny Smith' flesh, whereas its overexpression reduced the flesh content of anthocyanin in 'Ballerina' (red-fleshed apple)...
March 6, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338853/radiological-impacts-assessment-for-workers-in-ceramic-industry-in-serbia
#6
Nataša Todorovic, Dušan Mrda, Jan Hansman, Slavko Todorovic, Jovana Nikolov, Miodrag Krmar
Studies have been carried out to determine the natural radioactivity in some materials used in ceramic industry (zircon, zirkosil, Zircobit MO/S, zircon silicate, zirklonil frit, hematite, bentonite, wollastonite, raw kaolin, kaolinized granite, sileks ball, feldspar, pigment, white base serigraphic, engobe) and their associated radiation hazard. The external hazard index, Hex, values, radium equivalent activity, Raeq, total absorbed dose rates, D and annual effective dose, De were derived for all measured materials and compared with the recommended values to assess the external radiation hazards to workers who worked in ceramic industries in Serbia...
March 3, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28338757/acceleration-of-leaf-senescence-is-slowed-down-in-transgenic-barley-plants-deficient-in-the-dna-rna-binding-protein-whirly1
#7
Weronika Kucharewicz, Assaf Distelfeld, Wolfgang Bilger, Maren Müller, Sergi Munné-Bosch, Götz Hensel, Karin Krupinska
WHIRLY1 in barley was isolated as a potential regulator of the senescence-associated gene HvS40. In order to investigate whether the plastid-nucleus-located DNA/RNA-binding protein WHIRLY1 plays a role in regulation of leaf senescence, primary foliage leaves from transgenic barley plants with an RNAi-mediated knockdown of the WHIRLY1 gene were characterized by typical senescence parameters, namely pigment contents, function and composition of the photosynthetic apparatus, as well as expression of selected genes known to be either down- or up-regulated during leaf senescence...
January 28, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338667/primary-photodynamic-therapy-with-verteporfin-for-small-pigmented-posterior-pole-choroidal-melanoma
#8
I D Fabian, A W Stacey, V Papastefanou, L Al Harby, A K Arora, M S Sagoo, V M L Cohen
PurposeThe purpose of the study was to investigate the outcomes of primary photodynamic therapy (PDT) for small pigmented posterior pole choroidal melanoma.Patients and methodsProspective interventional consecutive case series of 15 patients with small pigmented posterior pole choroidal melanoma, who were treated with three sessions of PDT and followed-up thereafter. Risk factors for failure were assessed and outcome measures at presentation were compared to those at last follow-up visit.ResultsTumor control was achieved in 12 (80%) patients in a median follow-up time of 15 months (mean 14, range 8-18)...
March 24, 2017: Eye
https://www.readbyqxmd.com/read/28338175/study-on-the-mechanism-of-ampk-signaling-pathway-and-its-effect-on-apoptosis-of-human-hepatocellular-carcinoma-smmc-7721-cells-by-curcumin
#9
Y-J Zhang, H Xiang, J-S Liu, D Li, Z-Y Fang, H Zhang
OBJECTIVE: Liver cancer is a common malignant tumor in the digestive system. Curcumin is a kind of phenolic pigment, which is extracted from herbage and has a plenty of physiological roles in anti-inflammation, anti-oxidation and anti-tumor. In our study, human hepatoma SMMC-7721 cell lines were selected and treated with curcumin to detect its effects on the apoptosis and AMPK signaling pathway. MATERIALS AND METHODS: Human liver cancer cell strain SMMC-7721 was cultured and treated with different curcumin concentrations for different times followed by measuring the changes of cell proliferation activity and cycle by MTT and flow cytometry, respectively...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28337898/melanin-of-the-nipple-areola-complex
#10
A Goren, M Kovacevic, T Lotti
Biological pigments or biochromes are ubiquitous in animals, plants, and simpler organisms such as fungi and bacteria. They serve a wide spectrum of functions from photosynthesis, camouflage, mimicry, photo protection from the environment to attracting mates. The human female nipple areola complex (NAC) is a highly-pigmented area. Currently, the prevailing theory as to the evolution of the pigmented human NAC is based on infant recognition of breast feeding latching zone; however, due to the protruding shape of the nipple and surrounding breast, the authors of this letter believe that the evolutionary advantage of the pigmented NAC has a direct physiological function, namely the initiation of involution at the end of the infant lactation period...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337232/melanosis-coli-in-patients-with-colon-cancer
#11
Dorota Biernacka-Wawrzonek, Michał Stępka, Alicja Tomaszewska, Agnieszka Ehrmann-Jóśko, Natalia Chojnowska, Magdalena Zemlak, Jacek Muszyński
INTRODUCTION: Melanosis coli is a benign lesion affecting the mucosa of the large intestine. There is a relationship between the presence of melanosis and anthraquinone laxative use. Melanosis coli is also observed in patients with colon cancer, but there is doubt whether these two conditions are related. AIM: To analyze the correlation between melanosis and colon cancer. MATERIAL AND METHODS: We analyzed retrospectively 436 patients undergoing colon cancer surgery...
2017: Przegla̜d Gastroenterologiczny
https://www.readbyqxmd.com/read/28337220/paracrine-secreted-frizzled-related-protein-4-inhibits-melanocytes-differentiation-in-hair-follicle
#12
Haiying Guo, Mingxing Lei, Yuhong Li, Yingxin Liu, Yinhong Tang, Yizhan Xing, Fang Deng, Ke Yang
Wnt signaling plays crucial role in regulating melanocyte stem cells/melanocyte differentiation in the hair follicle. However, how the Wnt signaling is balanced to be overactivated to control follicular melanocytes behavior remains unknown. Here, by using immunofluorescence staining, we showed that secreted frizzled-related protein 4 (sFRP4) is preferentially expressed in the skin epidermal cells rather than in melanocytes. By overexpression of sFRP4 in skin cells in vivo and in vitro, we found that sFRP4 attenuates activation of Wnt signaling, resulting in decrease of melanocytes differentiation in the regenerating hair follicle...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28336635/cell-projections-set-up-pigment-pattern
#13
EDITORIAL
Beverly A Purnell
No abstract text is available yet for this article.
March 24, 2017: Science
https://www.readbyqxmd.com/read/28336606/draft-genome-sequence-of-chromobacterium-aquaticum-cc-seya-1-a-nonpigmented-member-of-the-genus-chromobacterium
#14
Scott D Soby
Chromobacterium aquaticum CC-SEYA-1(T), isolated from a spring in Taiwan, shares many characteristics with other members of the genus but also contains auxin biosynthesis genes and does not produce the pigment violacein. Chromobacterium sp. 49, isolated from Brazil, is identified here as C. aquaticum, indicating that this is a cosmopolitan species.
March 23, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28336424/the-impact-of-oxidative-stress-and-inflammation-on-rpe-degeneration-in-non-neovascular-amd
#15
REVIEW
Sayantan Datta, Marisol Cano, Katayoon Ebrahimi, Lei Wang, James T Handa
The retinal pigment epithelium (RPE) is a highly specialized, unique epithelial cell that interacts with photoreceptors on its apical side and with Bruch's membrane and the choriocapillaris on its basal side. Due to vital functions that keep photoreceptors healthy, the RPE is essential for maintaining vision. With aging and the accumulated effects of environmental stresses, the RPE can become dysfunctional and die. This degeneration plays a central role in age-related macular degeneration (AMD) pathobiology, the leading cause of blindness among the elderly in western societies...
March 20, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28336284/macular-pigment-density-variation-after-supplementation-of-lutein-and-zeaxanthin-using-the-visucam-%C3%A2-200-pigment-module-impact-of-age-related-macular-degeneration-and-lens-status
#16
G Azar, M Quaranta-El Maftouhi, J-J Masella, M Mauget-Faÿsse
PURPOSE: To assess the evolution of macular pigment optical density (MPOD) following supplementation with various macular formulations obtained with the Visucam(®) 200, and to study the factors affecting MPOD measurements. MATERIALS AND METHODS: In this prospective, randomized, double-masked multicenter study, patients were divided into 2 groups: group A (patients without retinal pathology who underwent cataract surgery 1 month previously) and group B (patients with neovascular age-related macular degeneration [AMD] in one eye)...
March 20, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28336128/retinal-pigment-epithelium-tears-classification-pathogenesis-predictors-and-management
#17
REVIEW
Mehmet Giray Ersoz, Murat Karacorlu, Serra Arf, Isil Sayman Muslubas, Mumin Hocaoglu
Various eye conditions cause tears in the retinal pigment epithelium (RPE). The most common cause of an RPE tear is vascularized retinal pigment epithelial detachment (PED) in patients with exudative age-related macular degeneration. Although RPE tears can develop spontaneously in vascularized PEDs, most recent cases have been associated with anti-vascular endothelial growth factor (VEGF) injections. The subretinal fluid within the PED applies hydrostatic pressure to the RPE and stretches it. The PED enlarges as the hydrostatic pressure increases...
March 20, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28335986/on-the-formation-and-role-of-reactive-oxygen-species-in-light-driven-lpmo-oxidation-of-phosphoric-acid-swollen-cellulose
#18
K B Möllers, H Mikkelsen, T I Simonsen, D Cannella, K S Johansen, M J Bjerrum, C Felby
Light-driven activation of lytic polysaccharide monooxygenases (LPMOs) has been attributed to the transfer of high redox potential electrons from excited photopigments to the enzyme. However, due to the formation of reactive oxygen species (ROS) in such a system, not only electrons from the pigments but also ROS could be part of the enzyme mechanism. This work investigates the role of ROS in the oxidation of phosphoric acid swollen cellulose (PASC) by a light-driven LPMO system. Our results clearly show that the addition of superoxide dismutase or catalase to remove ROS did not attenuate the capacity of the light-driven LPMO system to oxidize PASC, as measured by formation of oxidized oligosaccharides...
March 18, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28335206/cytotoxic-induction-and-photoacoustic-imaging-of-breast-cancer-cells-using-astaxanthin-reduced-gold-nanoparticles
#19
Subramaniyan Bharathiraja, Panchanathan Manivasagan, Nhat Quang Bui, Yun-Ok Oh, In Gweon Lim, Suhyun Park, Junghwan Oh
Astaxanthin, a kind of photosynthetic pigment, was employed for gold nanoparticle formation. Nanoparticles were characterized using Ulteraviolet-Visible (UV-Vis) spectroscopy, transmission electron microscopy, and X-ray diffraction, and the possible presence of astaxanthin functional groups were analyzed by Fourier transform infrared spectroscopy (FTIR). The cytotoxic effect of synthesized nanoparticles was evaluated against MDA-MB-231 (human breast cancer cells) using a tetrazolium-based assay, and synthesized nanoparticles exhibited dose-dependent toxicity...
April 20, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334846/dapl1-a-susceptibility-locus-for-age-related-macular-degeneration-acts-as-a-novel-suppressor-of-cell-proliferation-in-the-retinal-pigment-epithelium
#20
Xiaoyin Ma, Huirong Li, Yipin Wang, Jing Wang, Qinxiang Zheng, Jiajia Hua, Juan Yang, Li Pan, Fan Lu, Jia Qu, Ling Hou
The retinal pigment epithelium (RPE) forms a monolayer at the back of the vertebrate eye and is fundamental to retinal function and homoeostasis. During early development, RPE cells undergo rapid proliferation, but in the adult, they remain normally nonproliferative throughout life. Nevertheless, under pathological conditions such as in proliferative vitreoretinopathy or after retinal ablation, mature RPE cells can re-enter the cell cycle and form nodules or multiple cell layers. Here we show that Dapl1, whose human homolog represents a susceptibility locus for age-related macular degeneration (AMD), is highly up-regulated in quiescent but not proliferating RPE cells and that experimental overexpression of DAPL1 in proliferating RPE cells inhibits their proliferation...
February 22, 2017: Human Molecular Genetics
keyword
keyword
108122
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"