RESULTScenter dot In total, 52 individuals (28 boys and 2

\n\nRESULTS\n\ncenter dot In total, 52 individuals (28 boys and 24 girls) selleck inhibitor aged 19-41 years (median, 29 years) had follow-up.\n\ncenter dot Of these, 37 (71%) individuals had bilateral normal kidney function at follow-up; seven (14%) had normal

total renal function but unilateral deteriorated kidney, and eight individuals (15%) had deteriorated kidney function.\n\ncenter dot Adult individuals with bilateral kidney deterioration had a significant higher frequency of diagnosed detrusor overactivity at childhood urodynamics (63%) compared to those with normal function of both kidneys (24%). In total, 48% of the 52 myelomeningocele individuals were continent at follow-up.\n\ncenter dot Continence surgery was performed in eight patients, nine used anticholinergica, three had regular botulinum toxin detrusor injections, and 27 used clean intermittent catheterization.\n\nCONCLUSIONS\n\ncenter dot Overall, 15% of patients had impairment of kidney function and 48% were urinary continent.\n\ncenter dot Considering the present age distribution of the present study population, this figure appears to be comparable

to the data in the literature.\n\ncenter dot Urodynamic findings in childhood were predictive for later kidney deterioration.”
“The aim of this study is to assess patient satisfaction, success at controlling symptoms and conversion rates to open surgery in patients undergoing pharyngeal pouch surgery using an endoscopic stapler in a

second cycle of audit. The design consisted of a review of patient records augmented by an electronic search of operation see more codes in PFTα price the hospitals’ theatre records. The setting was in Worcester Royal Hospital, BUPA Southbank Hospital and Hereford Hospital, UK. Participants include all patients with pharyngeal pouches undergoing endoscopic pharyngeal pouch repair by the senior author between July 2002 and July 2007. The total number of participants was 31. All patients were undergoing treatment for the first time. The main outcome measures were pre- and postoperative symptom prevalence, conversion rates to open surgery, patient satisfaction. Endoscopic pharyngeal pouch surgery was successful in the vast majority of cases, with 97% of patients being satisfied with the result. The conversion rate to open surgery was 9.7%. These figures are improved from the last round of audit. In conclusion, endoscopic surgery to treat pharyngeal pouches is safe, effective and patient selection is improving. A modified method of endoscopy using a Negus scope rather than a Baldwin scope has allowed more patients to be treated via endoscopic methods. Open surgery is still required in some patients.”
“Synthetic biology holds promise as both a framework for rationally engineering biological systems and a way to revolutionize how we fundamentally understand them.

Oto’s donor score, recipient variables and procedure characterist

Oto’s donor score, recipient variables and procedure characteristics were not statistically linked to PaO2/FiO(2) at the sixth post-operative hour. Ischaemic time of the last implanted graft and the lactate level at the end of the procedure are the only factors related to Grade III PGD in this group.\n\nHyperlactataemia most probably reflects the severity of early PGD, which leaves graft ischaemic time as the only factor predicting early PGD in a multicentre population of cystic fibrosis lung graft recipients.”
“Background: CF infants may be at increased risk of sodium depletion

which may lead to impaired growth. The this website objective of this study was to evaluate their sodium supplementation requirements.\n\nMethods: Ten CF infants had serial measurements of weight and plasma/urine sodium and creatinine. Sodium supplementation was adjusted with the aim of maintaining fractional excretion (FENa) between 0.5% and 1.5% and urinary sodium > 10 mmol/L.\n\nResults: Selleckchem AZD8931 Urine sodium:creatinine (UNa:Cr) ratio strongly correlated with FENa [UNa:Cr (mmol/mmol)=35.0 x FENa (r=0.99)]. The FENa target range corresponded to UNa:Cr 17-52 mmol/mmol. All infants required sodium supplementation to achieve UNa:Cr > 17 mmol/mmol. Sodium Supplement requirements (mean +/- SD) at ages 0-3, 3-6, 6-9 and 9-12 months were 1.9 +/- 0.5, 1.8 +/- 0.8, 1.9 +/- 0.9 and 0.8 +/- 0.4 mmol/kg/d. No infant required caloric supplementation to achieve

expected weight gain.\n\nConclusions: Using current UK guidelines, many cases of sodium depletion may be overlooked. Some infants require more

than the recommended 1-2 mmol/kg/d. UNa:Cr ratio is a useful non-invasive measure to monitor sodium supplementation. (C) 2009 European Cystic Fibrosis Society. Published by Elsevier B.V. All rights reserved.”
“Upon infection, the genome of herpes simplex virus is rapidly incorporated into nucleosomes displaying histone modifications characteristic of heterochromatic structures. The initiation of infection requires complex viral-cellular interactions that ultimately circumvent this repression by utilizing host cell enzymes to remove repressive www.selleckchem.com/products/rocilinostat-acy-1215.html histone marks and install those that promote viral gene expression. The reversion of repression and activation of viral gene expression is mediated by the cellular coactivator HCF-1 in association with histone demethylases and methyltransferases. However, the mechanisms and the components that are involved in the initial repression remain unclear. In this study, the chromatin remodeler chromodomain helicase DNA binding (CHD3) protein is identified as an important component of the initial repression of the herpesvirus genome. CHD3 localizes to early viral foci and suppresses viral gene expression. Depletion of CHD3 results in enhanced viral immediate early gene expression and an increase in the number of transcriptionally active viral genomes in the cell.

Methods: First trial lens was selected following manufacturer

\n\nMethods: First trial lens was selected following manufacturer’s guidelines and the back optic zone radius (BOZR) was flattened or steepened in 0.10 mm steps until a FDACL was found. Subsequently, subjects were randomly allocated to three-point-touch (BOZR 0.10 mm flatter than FDACL) and apical touch fittings (BOZR 0.40 mm flatter than FDACL). Changes were made solely in total lens diameter, edge CYT387 nmr lift, and/or back vertex power until an optimal lens fit was achieved. Differences between fitting approaches were compared in terms of optimal lens fit rates defined as the percentage of subjects successfully fitted with the

first lens ordered from the manufacturer.\n\nResults: Sixty-one subjects (109 eyes) were randomly allocated to three-point-touch and apical touch fitting approaches. An average of 2.3 trial lenses were necessary to achieve the FDACL. An optimal lens fit rate was achieved with the first lens in 84

of 109 eyes (77%). No statistically significant differences in optimal lens fit rates were found between three-point-touch see more and apical touch fitting approaches (83% and 71%, respectively; P = 0.12) and between nipple and oval cones (81% and 68%, respectively; P = 0.12).\n\nConclusions: The use of the FDACL provides a systematic, reliable, and repeatable starting point for Rose K2 contact lens fitting in keratoconus. Eye care practitioners should anticipate learn more higher optimal lens fit rates when using three-point-touch (83%) in comparison with apical touch contact lens fittings (71%).”
“Possibilities of the assessment of a landscape with the use of succession development stages, monitored with the value of the Mean Individual Biomass (MIB) of carabid beetles and the occurrence of bird species are discussed on the basis of an example from Poland. Higher variability of the MIB value in space signifies a greater biodiversity. Apart from the

variability of MIB, it is suggested to adopt the occurrence of the following animals as indicators, (in the order of importance), representing underlying valuable landscapes: black stork, lesser spotted eagle, white-tailed eagle, wolf, crane and white stork. The higher number of these species and their greater density indicate a higher value of the landscape for biodiversity and ecosystem services, especially carbon sequestration. All these indicators may be useful to assess measures for sustainable land use.”
“Background: Clostridium difficile is associated with nosocomial and community-acquired diarrhoea and pseudomembranous colitis in humans. Little information is available on the importance of C. difficile as a causative agent of diarrhoea in developing countries such as Zimbabwe. The current study was carried out to determine the prevalence of C.


“Background/Objectives: Destructive metastatic lesions abo


“Background/Objectives: Destructive metastatic lesions about the acetabulum result in pain and functional limitations. We assessed whether periacetabular reconstruction (PAR) improves quality of life by examining outcome measures of pain, function, and mobility.\n\nMethods: Thirty-seven patients with a mean follow-up of 23.6 months (range, 0.5-112 months) were retrospectively reviewed. All patients

CP-868596 mw underwent modified Harrington reconstruction with periacetabular screws, cement, and total hip arthroplasty.\n\nResults: The mean preoperative MSTS score of 14 (47%, 14/30) improved to 20 (67%, 20/30) after the procedure. Thirty-five patients who were alive 1 month after the procedure were reviewed for outcome. Postoperatively, patients reported a significant improvement in pain (P < 0.0001), mobility (P < 0.0385), and function (P < 0.0186). Kaplan-Meier survivorship curves showed 59% implant- and 55% patient survival at 2 years; and 49% implant- and 39% patient Survival at 5 years. Complications included infection (16%, 6/37) and instability (16%, 6/37).\n\nConclusions: Our experience with PAR has shown good results with improved postoperative functional scores. Implants will generally exceed life expectancy and are an option to restore quality of life. J Surg. Oncol. 2010;101:170-174. (C) 2009 Wiley-Liss, Inc.”
“BackgroundThere exists very little evidence to guide

clinical management for preventing recurrence of major depression. AZD4547 inhibitor The objective of this study was to develop and validate a prediction algorithm for recurrence of major depression.\n\nMethodsWave 1 and wave 2 longitudinal data from the U.S. National Epidemiological Survey on Alcohol and Related Condition (2001/2002-2003/2004) were used. Participants with a major depressive episode at baseline and who had visited health professionals for depression were included in this analysis (n = 2,711). Mental

disorders were assessed based on the DSM-IV criteria.\n\nResultsWith the development data (n = 1,518), a prediction model with 19 unique factors had a C statistics of 0.7504 and excellent calibration (P = .23). The model had a C statistics of 0.7195 in external validation data (n = 1,195) and 0.7365 in combined data. The algorithm calibrated very well in validation data. In the combined data, the 3-year observed Vactosertib and predicted risk of recurrence was 25.40% (95% CI: 23.76%, 27.04%) and 25.34% (95% CI: 24.73%, 25.95%), respectively. The predicted risk in the 1st and 10th decile risk group was 5.68% and 60.21%, respectively.\n\nConclusionsThe developed prediction model for recurrence of major depression has acceptable discrimination and excellent calibration, and is feasible to be used by physicians. The prognostic model may assist physicians and patients in quantifying the probability of recurrence so that physicians can develop specific treatment plans for those who are at high risk of recurrence, leading to personalized treatment and better use of resources.

0001) Conclusion: Telemedicine care by a hospital specialist thr

0001). Conclusion: Telemedicine care by a hospital specialist through Rigosertib order videoconferencing was comparable to hospital referral for face-to-face medicine. Teleconsultations managed by

nurses had a positive impact on the QoL of rural patients. They did not have to travel and thus diagnoses and examinations to start treatment were initiated faster.”
“Objective: Overweight was regarded as one of the risk factors for poor outcome after gastrectomy, but its influence on the surgical and postoperative outcomes of gastrectomy was unclear. Methods: Comprehensive searches were conducted to include cohort studies which evaluated the influence of overweight on the surgical and postoperative outcomes of gastrectomy. Data was analyzed by RevMan 5.0. Results: Twenty-five cohort studies (18 518 patients) were included. Overweight patients were associated with longer operation time (mean difference 20.88, 95% confidence interval 14.07, JQ1 datasheet 27.69), more intraoperative blood loss (mean difference 35.45, 95% confidence interval 9.24, 61.67), and less retrieved lymph nodes (mean difference -2.17, 95% confidence interval -3.51, -0.83) than

normal patients undergoing laparoscopy-assisted gastrectomy. And overweight patients were associated with longer operation time (mean difference 26.31, 95% confidence interval 21.92,

30.70), more intraoperative blood loss (mean difference 130.02, 95% confidence interval 75.49, 184.55), less retrieved lymph nodes Rigosertib (mean difference -3.18, 95% confidence interval -4.74, -1.61), longer postoperative hospital stay (mean difference 2.37, 95% confidence interval 0.03, 4.70) and more postoperative complications (risk ratio 1.53, 95% confidence interval 1.29, 1.80) than normal patients in open gastrectomy. Conclusions: Overweight might affect the clinical results of both laparoscopy-assisted and open gastrectomy, especially for open gastrectomy.”
“The “attention schema” theory provides one possible account of the biological basis of consciousness, tracing the evolution of awareness through steps from the advent of selective signal enhancement about half a billion years ago to the top-down control of attention, to an internal model of attention (which allows a brain, for the first time, to attribute to itself that it has a mind that is aware of something), to the ability to attribute awareness to other beings, and from there to the human attribution of a rich spirit world surrounding us. Humans have been known to attribute awareness to plants, rocks, rivers, empty space, and the universe as a whole. Deities, ghosts, souls-the spirit world swirling around us is arguably the exuberant attribution of awareness.

(C) 2011 International Federation of Gynecology and Obstetrics P

(C) 2011 International Federation of Gynecology and Obstetrics. Published by Elsevier Ireland Ltd. All rights reserved.”
“Background and purpose:

BAY 80-6946 The aetiopathogenesis of fatigue in multiple sclerosis (MS) is not clear. It could be associated with structural changes of the central nervous system, but also with mood and sleep disorders. The purpose of the study was to evaluate frequency of fatigue and its association with sleep and mood disorders in MS patients.\n\nMaterial and methods: The examined group consisted of 122 MS patients (mean age 37.7 +/- 10.8 years). The following questionnaires were used: Fatigue Severity Scale (FSS), Epworth Sleepiness Scale (ESS), Athens Insomnia Scale (AIS), Montgomery-Asberg Depression Rating Scale (MADRS), and Hospital Anxiety

selleck chemical and Depression Scale (HADS).\n\nResults: Fatigue was present in 75 MS patients (61.5%). Excessive daytime sleepiness was observed in 25 (20.5%), insomnia in 73 patients (59.8%). According to MADRS, depressive symptoms were present in 33 (27%), according to H ADS in IS people (12.3%). Anxiety was present in 32 patients (26.2%). We observed an association between fatigue (FSS) and sleep disorders (ESS, AIS) and also between fatigue and either depression (MADRS, HADS-D) or anxiety (HADS-A). The FSS score was not associated with age, sex, disease course and duration, Expanded Disability Status Stage (EDSS), treatment or level of education in MS patients. In inactive professionally people we noted significantly higher FSS scores (44.8 +/- 13.8) in comparison with active individuals (37.2 +/- 14.9; p = 0.0053).\n\nConclusions: Fatigue is a very Selleck GANT61 common symptom in MS, sometimes associated with sleep disorders,

depressive symptoms or anxiety. The treatable causes of fatigue in MS such as sleep and mood disturbances should be identified and treated.”
“Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by a progressive deterioration in cognitive functioning. Overall, 25-50% of patients with AD also show symptoms of psychosis including hallucinations and delusions. As all available antipsychotic drugs have a ‘black-box’ warning for use in these patients because of increased mortality, no appropriate treatment for psychotic symptoms in AD currently exists. In the present study, we examined whether selective antagonism of 5-HT2A serotonin receptors has antipsychotic-like activity in an animal model of AD. Mice receiving an intracerebroventricular infusion of the amyloid beta(25-35) peptide fragment showed AD-like histopathology and a psychosis-related behavioral phenotype with enhanced responses to the psychostimulants 2,5-dimethoxy-4-iodoamphetamine hydrochloride and amphetamine as well as disrupted prepulse inhibition.

In 21 patients with mild

In 21 patients with mild Salubrinal concentration to moderate AD and 20 age-matched controls, we investigated how oscillations in cerebral blood flow velocity (CBFV) and O(2)Hb are associated with spontaneous and induced oscillations in blood pressure (BP) at the very low (VLF = 0.05 Hz) and low frequencies (LF = 0.1 Hz). We applied spectral and transfer function analysis to quantify dynamic cerebral autoregulation and brain tissue oxygenation. In AD, cerebrovascular resistance was substantially

higher (34%, AD vs. control: Delta = 0.69 (0.25) mm Hg/cm/second,p = 0.012) and the transmission of very low frequency (VLF) cerebral blood flow (CBF) oscillations into O(2)Hb differed, with increased phase lag and gain

(Delta phase 0.32 3-Methyladenine cost [0.15] rad; Delta gain 0.049 [0.014] mu mol/cm/second, p both < 0.05). The altered transfer of CBF to cortical oxygenation in AD indicates that properties of the cerebral microvasculature are changed in this disease. (C) 2012 Elsevier Inc. All rights reserved.”
“Increasing age and cancer history are related to impaired physical function. Since physical activity has been shown to ameliorate age-related functional declines, we evaluated the association between physical activity and function in older, long-term colorectal cancer survivors.\n\nIn 2006-2007, mailed surveys were sent to colorectal cancer survivors, aged a parts per thousand yen65 years when diagnosed during 1995-2000, and identified through a state cancer registry. Information on physical activity, physical function, and relevant covariates was obtained and matched to registry data. Analysis of covariance and linear regression

were used to compare means and trends in physical function across levels of activity in the final analytic sample of 843 cases.\n\nA direct, dose-dependent association between physical activity and function was observed (p (trend) < .001), with higher SF-36 physical function subscores in those reporting high versus low activity levels (65.0 +/- A 1.7 vs. 42.7 +/- A 1.7 (mean +/- A standard error)). Walking, gardening, housework, and exercise activities were all independently related to better physical function. Moderate-vigorous intensity activity Selleck C59 (p (trend) < .001) was associated with function, but light activity (p (trend) = 0.39) was not.\n\nResults from this cross-sectional study indicate significant associations between physical activity and physical function in older, long-term colorectal cancer survivors.”
“One mechanism leading to neurodegeneration during Alzheimer’s Disease (AD) is amyloid beta peptide (A beta)-induced neurotoxicity. Among the factors proposed to potentiate A beta toxicity is its covalent modification through carbohydrate-derived advanced glycation endproducts (AGEs).

Here, we investigated whether MP shows DNA damage after sunlight

Here, we investigated whether MP shows DNA damage after sunlight irradiation. Two major photoproducts, p-hydroxybenzoic acid (PHBA) and 3-hydroxy methyl paraben (MP-3OH), were detected after sunlight irradiation to an aqueous MP solution. Both photoproducts were inactive in the in vitro DNA damage assay that measures oxidized guanine formed in calf thymus DNA in the presence of divalent copper ion, a known mediator of oxidative DNA damage. Simulated NIP metabolism using dermal tissues after light irradiation produced these two photoproducts,

which reacted with a microsomal high throughput screening compounds fraction (S9) of the skin. A metabolite from MP-3OH, not PHBA, caused distinct DNA damage in the in vitro assay. This active metabolite was identified as protocatechuic acid, a hydrolyzed MP-3OH product. In addition, NADH, a cellular reductant, enhanced DNA damage by approximately five times. These results suggest that reactive oxygen species generated by the redox cycle via metal ion and catechol autoxidation are participating in oxidative DNA damage. This study reveals that MP might cause skin damage involving carcinogenesis through the combined activation of sunlight irradiation and skin esterases.”
“Background: A central tenet in biochemistry for over 50 years has held that microorganisms,

plants and, more recently, certain apicomplexan parasites synthesize essential aromatic compounds via elaboration of a complete shikimic acid pathway, Belnacasan whereas metazoans

lacking this pathway require a dietary source of these compounds. The large number of sequenced bacterial and archaean genomes now available for comparative genomic analyses allows the fundamentals of this contention to be tested in prokaryotes. Using Hidden Markov Model profiles (HMM profiles) to identify all known enzymes of the pathway, we report the presence of genes encoding shikimate pathway enzymes MK-0518 Microbiology inhibitor in the hypothetical proteomes constructed from the genomes of 488 sequenced prokaryotes.\n\nResults: Amongst free-living prokaryotes most Bacteria possess, as expected, genes encoding a complete shikimic acid pathway, whereas of the culturable Archaea, only one was found to have a complete complement of recognisable enzymes in its predicted proteome. It may be that in the Archaea, the primary amino-acid sequences of enzymes of the pathway are highly divergent and so are not detected by HMM profiles. Alternatively, structurally unrelated (non-orthologous) proteins might be performing the same biochemical functions as those encoding recognized genes of the shikimate pathway. Most surprisingly, 30% of host-associated (mutualistic, commensal and pathogenic) bacteria likewise do not possess a complete shikimic acid pathway.

In this approach, electron-donor and acceptor electro-active segm

In this approach, electron-donor and acceptor electro-active segments are assembled individually in each column to give one-dimensional nanostructured materials with precisely tuned electronic properties.

Their desirable electronic structures responsible for both hole and electron conductions have also been examined by cyclic voltammetry and theoretical calculations. The present results provide a new guideline and versatile approach to the design of ambipolar conductive nanostructured liquid-crystalline materials.”
“Patterns of replication within eukaryotic genomes correlate with gene expression, chromatin structure, and genome evolution. Protein Tyrosine Kinase inhibitor Recent advances in genome-scale mapping of replication kinetics have allowed these correlations to be explored in many species, cell types, and growth conditions, and these large data sets have allowed quantitative and computational analyses. One striking new correlation to emerge from these analyses is between

replication timing and the three-dimensional structure of chromosomes. This correlation, which is significantly stronger than with any single histone modification or chromosome-binding protein, suggests that replication timing is controlled at the level of chromosomal domains. This conclusion dovetails with parallel work on the heterogeneity of origin firing and the competition between origins for limiting activators www.selleckchem.com/products/ag-120-Ivosidenib.html to suggest a model in which the stochastic probability of individual origin firing is modulated by chromosomal domain structure to produce patterns of replication. Whether these patterns have inherent biological functions or simply reflect higher-order genome structure is an open question.”
“In mammals, the forkhead box class O (FOXO) family of transcription factors consists of the four members FOXO1, FOXO3A, FOXO4,

and FOXO6. The FOXO genes are homologues of daf-16, a key regulator of the insulin-IGF1 signaling pathway and a modulator of lifespan in Caenorhabditis elegans. Recently, variants in FOXO3A have consistently been associated with human longevity in various populations selleck chemicals llc worldwide. Given this confirmed finding, it is conceivable that polymorphisms in the other FOXO genes might have a similar effect on human longevity. To evaluate whether allelic variation in FOXO1, FOXO4, and FOXO6 influences the ability to become long-lived, we performed a comprehensive haplotype-tagging analysis of the three genes in a group of 1447 centenarians/nonagenarians and 1029 younger controls from Germany. This is the first investigation to analyze a possible association of human longevity with FOXO4 and FOXO6, respectively, and the largest and most comprehensive study to date to assess the genetic contribution of FOXO1 to the phenotype.

Exogenous NT and NS may therefore represent a novel therapy for m

Exogenous NT and NS may therefore represent a novel therapy for maintaining 10058-F4 Cell Cycle inhibitor gastrointestinal tract integrity. An exogenous NS mixture of thymidine, cytidine, guanosine and inosine (T-CGI) increases the proliferation rate of rat intestinal epithelial cell line 6 (IEC-6) cells, while a mixture of uridine, cytidine, guanosine and inosine (U-CGI) reduces IEC-6 proliferation independently of necrosis or apoptosis. This study aimed to analyze the effects of exogenous NS on IEC-6 differentiation under proliferation and differentiation conditions. To this end, IEC-6 cells were treated with NS T-CGI and

NS U-CGI mixtures under low-and high-density conditions. Enterocyte differentiation was also assessed by flow cytometry, Western blotting, and light, fluorescence and transmission electron microscopy. Under proliferative conditions, villin expression was reduced in all cases, but NS-treated cells showed twofold the expression observed in NS-free cultures (controls) and more frequently showed characteristics URMC-099 of mature enterocytes. When cells were grown after confluence, villin expression, total protein production and morphology of NS-treated cultures

were more differentiated compared with the control group. Our results demonstrate that T-CGI and U-CGI mixtures promote IEC-6 cell differentiation, with no significant differences between them. Unlike previous authors, we obtained this effect in cultures without an exogenous extracellular matrix such as Matrigel, reducing the variability among independent assays. Copyright (C) 2010 S. Karger AG, Basel”
“The melanocortin-1 receptor (MCIR) is a G-protein-coupled receptor expressed primarily in melanocytes and is known to play a pivotal role in the regulation of pigmentation in mammals. In humans MC1R has

been found to be highly polymorphic with several functional variants associated with the phenotype of red hair color and fair skin, cutaneous UV sensitivity, and increased risk of developing melanoma and non-melanoma skin Epacadostat cancer. Recent evidence suggests that MC1R plays a photo-protective role in melanocytes in response to UV irradiation. Relatively few genetic targets of MC1R signaling have been identified independent of the pigmentation pathway. Here we show that MC1R signaling in B16 mouse melanoma cells and primary human melanocytes rapidly, and transiently, induces the transcription of the NR4A subfamily of orphan nuclear receptors. Furthermore, primary human melanocytes harboring homozygous RHC variant MC1R alleles exhibited an impaired induction of NR4A genes in response to the potent MC1R agonist (Nle4, D-Phe7)-alpha-melanocyte-stimulating hormone. Using small interference RNA-mediated attenuation of NR4A1 and NR4A2 expression in melanocytes, the ability to remove cyclobutane pyrimidine dimers following UV irradiation appeared to be impaired in the context of MC1R signaling.