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https://www.readbyqxmd.com/read/28743168/calorie-restriction-reverses-age-related-alteration-of-cavernous-neurovascular-structure-in-the-rat
#1
A Limanjaya, K-M Song, M-J Choi, K Ghatak, N N Minh, D H Kang, J Ock, G N Yin, H Y Chung, J-K Ryu, J-K Suh
Calorie restriction (CR) refers to a reduction of calorie intake without compromising essential nutrients to avoid malnutrition. CR has been established as a non-genetic method of altering longevity and attenuating biological changes associated with aging. Aging is also an important risk factor for erectile dysfunction. The aim of this study was to examine whether CR diet can reverse the age-related alterations of erectile tissue in the aged rat. Four groups of rats were used: young rats (7 months) + ad libitum, aged rats (22 months) + ad libitum, young rats + CR diet, and aged rats + CR diet...
July 25, 2017: Andrology
https://www.readbyqxmd.com/read/28743124/the-role-of-discoidin-domain-receptor-1-in-inflammation-fibrosis-and-renal-disease
#2
Aude Dorison, Jean-Claude Dussaule, Christos Chatziantoniou
Discoidin domain receptors (DDRs) are a family of 2 non-integrin collagen receptors, DDR1 and DDR2, which display a tyrosine kinase activity. They are mainly expressed during embryonic development and their role during adulthood is very limited. DDR1 has been widely studied in several types of cancers, in atherosclerosis and fibrosis, but also in chronic kidney disease (CKD). This review focuses on the role of DDR1 in chronic nephropathies and on the effect of its deletion in the pathological processes involved in renal disease progression...
July 26, 2017: Nephron
https://www.readbyqxmd.com/read/28743113/pulmonary-hypertension-in-a-large-cohort-with-hereditary-hemorrhagic-telangiectasia
#3
Veronique Vorselaars, Sebastiaan Velthuis, Marco van Gent, Cornelis Westermann, Repke Snijder, Johannes Mager, Martijn Post
BACKGROUND: Hereditary hemorrhagic telangiectasia (HHT) is a vascular disorder characterized by arteriovenous malformations in the brain, liver, and lungs. Pulmonary hypertension (PH) is increasingly recognized as a severe complication of HHT. However, there are no studies describing the prevalence of PH in HHT compared to HHT-negative controls. OBJECTIVE: To assess the estimated prevalence of PH in patients with HHT compared to HHT-negative controls. METHODS: All consecutive subjects screened for HHT with available genetic testing and echocardiography-based peak tricuspid regurgitation velocity (TRV) measurement were included...
July 26, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28743110/clinical-endocrine-and-molecular-genetic-analysis-of-a-large-cohort-of-saudi-arabian-patients-with-laron-syndrome
#4
Abdullah A Al-Ashwal, Afaf Al-Sagheir, Khushnooda Ramzan, Mohammed Al-Owain, Rabab Allam, Alya Qari, Nouf S Al-Numair, Faiqa Imtiaz
BACKGROUND/AIMS: Laron syndrome (LS) is an autosomal recessive disease characterized by marked short stature and very low serum IGF-1 and IGFBP-3 levels. This study assessed the clinical and endocrine features alongside determining the growth hormone receptor gene (GHR) mutation in Saudi Arabian patients with LS in order to establish whether or not a genotype/phenotype correlation is evident in this large cohort. SUBJECTS AND METHODS: A total of 40 Saudi Arabian patients with a suspected diagnosis of LS were recruited and subjected to a full clinical and endocrine investigation together with direct sequencing of the coding regions of the GHR gene...
July 25, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28743033/analysis-of-the-genetic-structure-of-the-malay-population-ancestry-informative-marker-snps-in-the-malay-of-peninsular-malaysia
#5
Padillah Yahya, Sarina Sulong, Azian Harun, Hatin Wan Isa, Nur-Shafawati Ab Rajab, Pongsakorn Wangkumhang, Alisa Wilantho, Chumpol Ngamphiw, Sissades Tongsima, Zilfalil Alwi
Malay, the main ethnic group in Peninsular Malaysia, is represented by various sub-ethnic groups such as Melayu Banjar, Melayu Bugis, Melayu Champa, Melayu Java, Melayu Kedah Melayu Kelantan, Melayu Minang and Melayu Patani. Using data retrieved from the MyHVP (Malaysian Human Variome Project) database, a total of 135 individuals from these sub-ethnic groups were profiled using the Affymetrix GeneChip Mapping Xba 50-K single nucleotide polymorphism (SNP) array to identify SNPs that were ancestry-informative markers (AIMs) for Malays of Peninsular Malaysia...
July 14, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28743032/straf-a-convenient-online-tool-for-str-data-evaluation-in-forensic-genetics
#6
Alexandre Gouy, Martin Zieger
Population data in forensic genetics has to be checked for a variety of statistical parameters before it can be employed for case work. A lot of very powerful statistical tools are available for this task, most of them developed by labs having their research focus on population genetics or evolution. However, most of these programs require a substantial amount of experience. In addition, to our knowledge, none of the freely available programs calculates all the common parameters for a population study in forensic genetics at once, based on a single input file...
July 15, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28742969/fabrication-of-a-new-lineage-of-artificial-luciferases-from-natural-luciferase-pools
#7
Sung Bae Kim, Ryo Nishihara, Daniel Citterio, Koji Suzuki
The fabrication of artificial luciferases (ALucs) with unique optical properties can have a fundamental impact on bioassays and molecular imaging. In this study, we developed a new lineage of ALucs with unique substrate preferences by extracting consensus amino acids from the alignment of 25 copepod luciferase sequences available in published databases. The primary sequence was first created with a sequence logo generator resulting in a total of 11 sibling sequences. Phylogenetic analysis shows that the newly fabricated ALucs form an independent branch, genetically isolated from the natural luciferases and from a prior series of ALucs produced by our laboratory using a smaller basis set...
July 25, 2017: ACS Combinatorial Science
https://www.readbyqxmd.com/read/28742949/strategies-to-increase-the-efficacy-of-using-gut-microbiota-for-the-modulation-of-obesity
#8
REVIEW
J Li, M S Riaz Rajoka, D Shao, C Jiang, M Jin, Q Huang, H Yang, J Shi
Obesity is one of the most serious global public health challenges of the 21st century. The adjustment of gut microbiota is often recommended as an efficient strategy to treat obesity. This modulation of gut microbiota can be performed by many methods, including dietary intervention, antibiotic application, the use of prebiotics and probiotics, bariatric surgery and faecal microbiota transplantation. In most cases, positive effects have been observed in response to treatment, but invalid and even contrary effects have also been observed in some cases due to factors that are unrelated to intervention methods, such as genetic factors, patient age or gender, environmental microbiota, climate, geography and lifestyle...
July 25, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28742942/regulation-of-transposable-elements-interplay-between-te-encoded-regulatory-sequences-and-host-specific-trans-acting-factors-in-drosophila-melanogaster
#9
Ana Marija Jakšić, Robert Kofler, Christian Schlötterer
Transposable elements (TEs) are mobile genetic elements that can move around the genome and their expression is one precondition for this mobility. Because the insertion of TEs in new genomic positions is largely deleterious, the molecular mechanisms for transcriptional suppression have been extensively studied. In contrast, very little is known about their primary transcriptional regulation. Here, we characterize the expression dynamics of TE families in Drosophila melanogaster across a broad temperature range (13-29°C)...
July 25, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28742937/models-for-discovery-of-targeted-therapy-in-genetic-epileptic-encephalopathies
#10
REVIEW
Snezana Maljevic, Christopher A Reid, Steven Petrou
Epileptic encephalopathies are severe disorders emerging in the first days to years of life that commonly include refractory seizures, various types of movement disorders, and different levels of developmental delay. In recent years, many de novo occurring variants have been identified in individuals with these devastating disorders. To unravel disease mechanisms the functional impact of detected variants associated with epileptic encephalopathies is investigated in a range of cellular and animal models. This review addresses efforts to advance and use such models to identify specific molecular and cellular targets for the development of novel therapies...
July 25, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28742930/information-about-first-trimester-screening-and-self-reported-distress-among-pregnant-women-and-partners-comparing-two-methods-of-information-giving-in-sweden
#11
Peter Lindgren, Magdalena Stadin, Inger Blomberg, Karin Nordin, Hanna Sahlgren, Charlotta Ingvoldstad Malmgren
INTRODUCTION: Balanced information prior to prenatal diagnosis (PND) aims to help expectant parents to make an informed choice. However, it is important that the information does not increase the expectant parents' psychological distress. The aim was to examine psychological distress among expectant parents, before and after receiving information about PND, to evaluate the possible differences between two different procedures of information giving, and to evaluate the association between satisfaction with the information and psychological distress...
July 25, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28742912/association-of-genetic-variants-related-to-serum-calcium-levels-with-coronary-artery-disease-and-myocardial-infarction
#12
Susanna C Larsson, Stephen Burgess, Karl Michaëlsson
Importance: Serum calcium has been associated with cardiovascular disease in observational studies and evidence from randomized clinical trials indicates that calcium supplementation, which raises serum calcium levels, may increase the risk of cardiovascular events, particularly myocardial infarction. Objective: To evaluate the potential causal association between genetic variants related to elevated serum calcium levels and risk of coronary artery disease (CAD) and myocardial infarction using mendelian randomization...
July 25, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28742895/cascade-screening-for-familial-hypercholesterolemia-and-the-use-of-genetic-testing
#13
Joshua W Knowles, Daniel J Rader, Muin J Khoury
No abstract text is available yet for this article.
July 25, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28742868/combining-ability-of-highland-tropic-adapted-potato-for-tuber-yield-and-yield-components-under-drought
#14
Betaw Hirut, Hussein Shimelis, Mengistu Fentahun, Merideth Bonierbale, Manuel Gastelo, Asrat Asfaw
Recurrent drought and late blight disease are the major factors limiting potato productivity in the northwest Ethiopian highlands. Incorporating drought tolerance and late blight resistance in the same genotypes will enable the development of cultivars with high and stable yield potential under erratic rainfall conditions. The objectives of this study were to assess combining ability effects and gene action for tuber yield and traits related to drought tolerance in the International Potato Centre's (CIP's) advanced clones from the late blight resistant breeding population B group 'B3C2' and to identify promising parents and families for cultivar development...
2017: PloS One
https://www.readbyqxmd.com/read/28742862/plio-pleistocene-phylogeography-of-the-southeast-asian-blue-panchax-killifish-aplocheilus-panchax
#15
Samantha V Beck, Gary R Carvalho, Axel Barlow, Lukas Rüber, Heok Hui Tan, Estu Nugroho, Daisy Wowor, Siti Azizah Mohd Nor, Fabian Herder, Zainal A Muchlisin, Mark de Bruyn
The complex climatic and geological history of Southeast Asia has shaped this region's high biodiversity. In particular, sea level fluctuations associated with repeated glacial cycles during the Pleistocene both facilitated, and limited, connectivity between populations. In this study, we used data from two mitochondrial and three anonymous nuclear markers to determine whether a fresh/brackish water killifish, Aplocheilus panchax, Hamilton, 1822, could be used to further understand how climatic oscillations and associated sea level fluctuations have shaped the distribution of biota within this region, and whether such patterns show evidence of isolation within palaeodrainage basins...
2017: PloS One
https://www.readbyqxmd.com/read/28742845/evaluation-of-k-ras-and-p53-expression-in-pancreatic-adenocarcinoma-using-the-cancer-genome-atlas
#16
Liming Lu, Jingchun Zeng
Genetic alterations in K-ras and p53 are thought to be critical in pancreatic cancer development and progression. However, K-ras and p53 expression in pancreatic adenocarcinoma have not been systematically examined in The Cancer Genome Atlas (TCGA) Data Portal. Information regarding K-ras and p53 alterations, mRNA expression data, and protein/protein phosphorylation abundance was retrieved from The Cancer Genome Atlas (TCGA) databases, and analyses were performed by the cBioPortal for Cancer Genomics. The mutual exclusivity analysis showed that events in K-ras and p53 were likely to co-occur in pancreatic adenocarcinoma (Log odds ratio = 1...
2017: PloS One
https://www.readbyqxmd.com/read/28742844/control-of-runx-induced-repression-of-notch-signaling-by-mlf-and-its-partner-dnaj-1-during-drosophila-hematopoiesis
#17
Marion Miller, Aichun Chen, Vanessa Gobert, Benoit Augé, Mathilde Beau, Odile Burlet-Schiltz, Marc Haenlin, Lucas Waltzer
A tight regulation of transcription factor activity is critical for proper development. For instance, modifications of RUNX transcription factors dosage are associated with several diseases, including hematopoietic malignancies. In Drosophila, Myeloid Leukemia Factor (MLF) has been shown to control blood cell development by stabilizing the RUNX transcription factor Lozenge (Lz). However, the mechanism of action of this conserved family of proteins involved in leukemia remains largely unknown. Here we further characterized MLF's mode of action in Drosophila blood cells using proteomic, transcriptomic and genetic approaches...
July 25, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28742834/contacts-in-the-last-90-000-years-over-the-strait-of-gibraltar-evidenced-by-genetic-analysis-of-wild-boar-sus-scrofa
#18
Carmen Soria-Boix, Maria P Donat-Torres, Vicente Urios
Contacts across the Strait of Gibraltar in the Pleistocene have been studied in different research papers, which have demonstrated that this apparent barrier has been permeable to human and fauna movements in both directions. Our study, based on the genetic analysis of wild boar (Sus scrofa), suggests that there has been contact between Africa and Europe through the Strait of Gibraltar in the Late Pleistocene (at least in the last 90,000 years), as shown by the partial analysis of mitochondrial DNA. Cytochrome b and the control region from North African wild boar indicate a close relationship with European wild boar, and even some specimens belong to a common haplotype in Europe...
2017: PloS One
https://www.readbyqxmd.com/read/28742812/broad-range-lytic-bacteriophages-that-kill-staphylococcus-aureus-local-field-strains
#19
Virginia Abatángelo, Natalia Peressutti Bacci, Carina A Boncompain, Ariel A Amadio, Soledad Carrasco, Cristian A Suárez, Héctor R Morbidoni
Staphylococcus aureus is a very successful opportunistic pathogen capable of causing a variety of diseases ranging from mild skin infections to life-threatening sepsis, meningitis and pneumonia. Its ability to display numerous virulence mechanisms matches its skill to display resistance to several antibiotics, including β-lactams, underscoring the fact that new anti-S. aureus drugs are urgently required. In this scenario, the utilization of lytic bacteriophages that kill bacteria in a genus -or even species- specific way, has become an attractive field of study...
2017: PloS One
https://www.readbyqxmd.com/read/28742803/the-role-of-supplementary-environmental-surveillance-to-complement-acute-flaccid-paralysis-surveillance-for-wild-poliovirus-in-pakistan-2011-2013
#20
Tori L Cowger, Cara C Burns, Salmaan Sharif, Howard E Gary, Jane Iber, Elizabeth Henderson, Farzana Malik, Syed Sohail Zahoor Zaidi, Shahzad Shaukat, Lubna Rehman, Mark A Pallansch, Walter A Orenstein
BACKGROUND: More than 99% of poliovirus infections are non-paralytic and therefore, not detected by acute flaccid paralysis (AFP) surveillance. Environmental surveillance (ES) can detect circulating polioviruses from sewage without relying on clinical presentation. With extensive ES and continued circulation of polioviruses, Pakistan presents a unique opportunity to quantify the impact of ES as a supplement to AFP surveillance on overall completeness and timeliness of poliovirus detection...
2017: PloS One
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