keyword
MENU ▼
Read by QxMD icon Read
search

aDNA

keyword
https://www.readbyqxmd.com/read/28625158/a-minimally-invasive-method-for-sampling-human-petrous-bones-from-the-cranial-base-for-ancient-dna-analysis
#1
Kendra A Sirak, Daniel M Fernandes, Olivia Cheronet, Mario Novak, Beatriz Gamarra, Tímea Balassa, Zsolt Bernert, Andrea Cséki, János Dani, József Zsolt Gallina, Gábor Kocsis-Buruzs, Ivett Kővári, Orsolya László, Ildikó Pap, Róbert Patay, Zsolt Petkes, Gergely Szenthe, Tamás Szeniczey, Tamás Hajdu, Ron Pinhasi
Ancient DNA (aDNA) research involves invasive and destructive sampling procedures that are often incompatible with anthropological, anatomical, and bioarcheological analyses requiring intact skeletal remains. The osseous labyrinth inside the petrous bone has been shown to yield higher amounts of endogenous DNA than any other skeletal element; however, accessing this labyrinth in cases of a complete or reconstructed skull involves causing major structural damage to the cranial vault or base. Here, we describe a novel cranial base drilling method (CBDM) for accessing the osseous labyrinth from the cranial base that prevents damaging the surrounding cranial features, making it highly complementary to morphological analyses...
June 1, 2017: BioTechniques
https://www.readbyqxmd.com/read/28609785/comprehensive-analysis-of-microorganisms-accompanying-human-archaeological-remains
#2
Anna Philips, Ireneusz Stolarek, Bogna Kuczkowska, Anna Juras, Luiza Handschuh, Janusz Piontek, Piotr Kozlowski, Marek Figlerowicz
Background.: Metagenome analysis has become a common source of information about microbial communities that occupy a wide range of niches, including archaeological specimens. It has been shown that vast majority of DNA extracted from ancient samples come from bacteria (presumably modern contaminants). However, characterization of microbial DNA accompanying human remains has never been done systematically for a wide range of different samples. Findings.: We used metagenomic approaches to perform comparative analyses of microorganism communities present in 161 archaeological human remains...
June 13, 2017: GigaScience
https://www.readbyqxmd.com/read/28569387/synthesis-and-in-vitro-antioxidant-activity-study-of-some-new-piperazinyl-flavone-compounds
#3
Paweł Berczyński, Aleksandra Kładna, Irena Kruk, Elmas Sarı, Hatice Nehir Murat, Oya Bozdağ Dündar, Hassan Y Aboul-Enein
Flavones exhibit a variety of beneficial effects and are well known for their medicinal importance in several diseases, including cardiovascular, neurodegenerative and cancer. The inclusion of the piperazine ring to the flavone backbone is an important strategy in drug discovery but only a few studies have synthesized piperazinyl flavone compounds to test their biological activity. While there is a major focus on the antioxidant properties of drugs in therapy of several diseases of inflammatory origin, we synthesized a series of the novel piperazinyl flavone analogues bearing the phenyl ring with different substituents...
June 1, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28521913/a-6500-year-old-middle-neolithic-child-from-pollera-cave-liguria-italy-with-probable-multifocal-osteoarticular-tuberculosis
#4
Vitale S Sparacello, Charlotte A Roberts, Ammielle Kerudin, Romy Müller
Clear skeletal evidence of prehistoric tuberculosis (TB) is rare, especially in children. We describe and differentially diagnose the pathological changes displayed by a five-year-old child, Pollera 21 (PO21) dated to the Middle Neolithic of Liguria (Italy), or 5740±30 BP (Beta-409341; 6635-6453cal BP, 2σ, OxCal 4.2). PO21 shows a number of osteoarticular lesions, mainly of a lytic nature with very little bone proliferation: the vertebral column, the shoulder and pelvic girdles, and the ribcage are involved...
June 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/28502586/novel-zinc-complexes-of-a-non-steroidal-anti-inflammatory-drug-niflumic-acid-structural-characterization-human-dna-and-albumin-binding-properties
#5
Romana Smolková, Vladimír Zeleňák, Lukáš Smolko, Juraj Kuchár, Miroslava Rabajdová, Michaela Ferenčáková, Mária Mareková
Three novel Zn(II) complexes of NSAID niflumic acid (Hnif) were prepared and studied, namely; [Zn(MeOH)4(nif)2] (1), [Zn(cyclam)(nif)2] (2) and [Zn(nif)2(tmen)] (3), where nif is deprotonated niflumic acid, cyclam is 1,4,8,11-Tetraazacyclotetradecane and tmen is N,N,N',N'-Tetramethylethylenediamine. The complexes have been characterized by infrared spectroscopy, elemental and thermal analysis and single-crystal X-ray structure analysis. All three complexes contain two deprotonated niflumato anions monodentately coordinated via carboxylato groups...
May 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28472753/chemical-toxicity-and-radioactivity-of-depleted-uranium-the-evidence-from-in-vivo-and-in-vitro-studies
#6
REVIEW
Adna Asic, Amina Kurtovic-Kozaric, Larisa Besic, Lejla Mehinovic, Azra Hasic, Mirza Kozaric, Mirsada Hukic, Damir Marjanovic
The main aim of this review is to summarize and discuss the current state of knowledge on chemical toxicity and radioactivity of depleted uranium (DU) and their effect on living systems and cell lines. This was done by presenting a summary of previous investigations conducted on different mammalian body systems and cell cultures in terms of potential changes caused by either chemical toxicity or radioactivity of DU. In addition, the authors aimed to point out the limitations of those studies and possible future directions...
July 2017: Environmental Research
https://www.readbyqxmd.com/read/28455625/toward-a-consensus-on-snp-and-str-mutation-rates-on-the-human-y-chromosome
#7
REVIEW
O Balanovsky
The mutation rate on the Y-chromosome matters for estimating the time-to-the-most-recent-common-ancestor (TMRCA, i.e. haplogroup age) in population genetics, as well as for forensic, medical, and genealogical studies. Large-scale sequencing efforts have produced several independent estimates of Y-SNP mutation rates. Genealogical, or pedigree, rates tend to be slightly faster than evolutionary rates obtained from ancient DNA or calibrations using dated (pre)historical events. It is, therefore, suggested to report TMRCAs using an envelope defined by the average aDNA-based rate and the average pedigree-based rate...
May 2017: Human Genetics
https://www.readbyqxmd.com/read/28454758/n-o-343-pr%C3%A3-diction-du-g%C3%A3-notype-rhd-f%C3%A5-tal-par-test-pr%C3%A3-natal-non-invasif-de-routine-au-canada-l%C3%A2-heure-est-venue
#8
Jo-Ann Johnson, Kim MacDonald, Gwen Clarke, Amanda Skoll
Actuellement, la meilleure façon de prendre en charge les femmes enceintes Rh négatives consiste à prédire la présence ou l'absence de l'antigène D chez le fœtus au moyen d'un test non invasif analysant l'ADN acellulaire (ADNa) dans le plasma maternel, et à administrer une prophylaxie à celles dont l'enfant est RHD positif. Cette approche, prise pour norme dans un nombre croissant de pays, assure aux femmes enceintes Rh négatives des soins optimaux. La présente directive est le fruit d'une réunion de consensus du groupe de travail national sur le facteur Rh du Canada, un groupe interdisciplinaire formé pour examiner la situation nationale actuelle du génotypage RHD fœtal effectué sur l'ADNa...
May 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28452088/myosin-ii-activity-is-required-for-structural-plasticity-at-the-axon-initial-segment
#9
Mark D Evans, Candida Tufo, Adna S Dumitrescu, Matthew S Grubb
In neurons, axons possess a molecularly defined and highly organised proximal region - the axon initial segment (AIS) - that is a key regulator of both electrical excitability and cellular polarity. Despite existing as a large, dense structure with specialised cytoskeletal architecture, the AIS is surprisingly plastic, with sustained alterations in neuronal activity bringing about significant alterations to its position, length or molecular composition. However, although the upstream activity-dependent signalling pathways that lead to such plasticity have begun to be elucidated, the downstream mechanisms that produce structural changes at the AIS are completely unknown...
April 27, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28395819/evaluation-of-the-release-profile-stability-and-antioxidant-activity-of-a-proanthocyanidin-rich-cinnamon-cinnamomum-zeylanicum-extract-co-encapsulated-with-%C3%AE-tocopherol-by-spray-chilling
#10
Fabrício L Tulini, Volnei B Souza, Marcelo Thomazini, Marluci P Silva, Adna P Massarioli, Severino M Alencar, Eliria M J A Pallone, Maria I Genovese, Carmen S Favaro-Trindade
Cinnamon has many health improving compounds such as proanthocyanidins, which also have potential for the prevention of damages caused by diabetes. Similarly, α-tocopherol is a natural antioxidant with important role on protection of fatty acids in membranes and lipoproteins. However, the addition of antioxidants in food may result in interaction with food matrix, low stability and unpleasant taste. In the present study, a proanthocyanidin-rich cinnamon extract (PRCE) (Cinnamomum zeylanicum) was co-encapsulated with α-tocopherol into solid lipid microparticles (SLMs) by spray chilling...
May 2017: Food Research International
https://www.readbyqxmd.com/read/28395154/meta-analysis-of-depleted-uranium-levels-in-the-balkan-region
#11
Larisa Besic, Imer Muhovic, Adna Asic, Amina Kurtovic-Kozaric
In recent years, contradicting data has been published on the connection between the presence of depleted uranium and an increased cancer incidence among military personnel deployed in the Balkans during the 1992-1999 wars. This has led to numerous research articles investigating possible depleted uranium contamination of the afflicted regions of the Balkan Peninsula, namely Bosnia & Herzegovina, Serbia, Kosovo and Montenegro. The aim of this study was to collect data from previously published reports investigating the levels of depleted uranium in the Balkans and to present the data in the form of a meta-analysis...
June 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28389681/-adna-research-from-a%C3%A2-historical-perspective
#12
Elsbeth Bösl
aDNA studies are a cooperative field of research with a broad range of applications including evolutionary biology, genetics, anthropology and archaeology. Scientists are using ancient molecules as source material for historical questions. Colleagues from the humanities are observing this with both interest and concern because aDNA research is affecting academic identities and both concepts of history and historiography. aDNA research developed in a way that can be described as a Hype Cycle (Chackie Fenn)...
April 7, 2017: NTM
https://www.readbyqxmd.com/read/28384042/comparison-of-suitability-of-the-most-common-ancient-dna-quantification-methods
#13
COMPARATIVE STUDY
Kristýna Brzobohatá, Eva Drozdová, Jiří Smutný, Tomáš Zeman, Radoslav Beňuš
AIMS: Ancient DNA (aDNA) extracted from historical bones is damaged and fragmented into short segments, present in low quantity, and usually copurified with microbial DNA. A wide range of DNA quantification methods are available. The aim of this study was to compare the five most common DNA quantification methods for aDNA. MATERIALS AND METHODS: Quantification methods were tested on DNA extracted from skeletal material originating from an early medieval burial site...
April 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28370025/ancient-plant-dna-in-lake-sediments
#14
REVIEW
Laura Parducci, Keith D Bennett, Gentile Francesco Ficetola, Inger Greve Alsos, Yoshihisa Suyama, Jamie R Wood, Mikkel Winther Pedersen
Contents I. II. III. IV. V. VI. VII. VIII. IX. X. XI. References SUMMARY: Recent advances in sequencing technologies now permit the analyses of plant DNA from fossil samples (ancient plant DNA, plant aDNA), and thus enable the molecular reconstruction of palaeofloras. Hitherto, ancient frozen soils have proved excellent in preserving DNA molecules, and have thus been the most commonly used source of plant aDNA. However, DNA from soil mainly represents taxa growing a few metres from the sampling point. Lakes have larger catchment areas and recent studies have suggested that plant aDNA from lake sediments is a more powerful tool for palaeofloristic reconstruction...
April 3, 2017: New Phytologist
https://www.readbyqxmd.com/read/28329013/the-origin-of-b-chromosomes-in-yellow-necked-mice-apodemus-flavicollis-break-rules-but-keep-playing-the-game
#15
M Rajičić, S A Romanenko, T V Karamysheva, J Blagojević, T Adnađević, I Budinski, A S Bogdanov, V A Trifonov, N B Rubtsov, M Vujošević
B chromosomes (Bs) are known for more than hundred years but their origin, structure and pattern of evolution are not well understood. In the past few years new methodological approaches, involving isolation of Bs followed by whole DNA amplification, DNA probe generation, and fluorescent in situ hybridization (FISH) or the B chromosome DNA sequencing, has allowed detailed analysis of their origin and molecular structure in different species. In this study we explored the origin of Bs in the yellow-necked wood mouse, Apodemus flavicollis, using generation of microdissected DNA probes followed by FISH on metaphase chromosomes...
2017: PloS One
https://www.readbyqxmd.com/read/28302068/late-danubian-mitochondrial-genomes-shed-light-into-the-neolithisation-of-central-europe-in-the-5-th-millennium-bc
#16
Maciej Chyleński, Anna Juras, Edvard Ehler, Helena Malmström, Janusz Piontek, Mattias Jakobsson, Arkadiusz Marciniak, Miroslawa Dabert
BACKGROUND: Recent aDNA studies are progressively focusing on various Neolithic and Hunter - Gatherer (HG) populations, providing arguments in favor of major migrations accompanying European Neolithisation. The major focus was so far on the Linear Pottery Culture (LBK), which introduced the Neolithic way of life in Central Europe in the second half of 6th millennium BC. It is widely agreed that people of this culture were genetically different from local HGs and no genetic exchange is seen between the two groups...
March 16, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28290363/volatile-and-non-volatile-semi-volatile-compounds-and-in-vitro-bioactive-properties-of-chilean-ulmo-eucryphia-cordifolia-cav-honey
#17
Francisca Acevedo, Paulina Torres, B Dave Oomah, Severino Matias de Alencar, Adna Prado Massarioli, Raquel Martín-Venegas, Vicenta Albarral-Ávila, César Burgos-Díaz, Ruth Ferrer, Mónica Rubilar
Ulmo honey originating from Eucryphia cordifolia tree, known locally in the Araucania region as the Ulmo tree is a natural product with valuable nutritional and medicinal qualities. It has been used in the Mapuche culture to treat infections. This study aimed to identify the volatile and non-volatile/semi-volatile compounds of Ulmo honey and elucidate its in vitro biological properties by evaluating its antioxidant, antibacterial, antiproliferative and hemolytic properties and cytotoxicity in Caco-2 cells. Headspace volatiles of Ulmo honey were isolated by solid-phase microextraction (SPME); non-volatiles/semi-volatiles were obtained by removing all saccharides with acidified water and the compounds were identified by GC/MS analysis...
April 2017: Food Research International
https://www.readbyqxmd.com/read/28279935/evaluation-of-the-illumina-forenseq%C3%A2-dna-signature-prep-kit-mps-forensic-application-for-the-miseq-fgx%C3%A2-benchtop-sequencer
#18
Catarina Xavier, Walther Parson
Massively Parallel (Next Generation) Sequencing (MPS) technologies have recently been proven useful and successful in typing various markers relevant in forensic genetics, such as STRs, SNPs and mitochondrial genomes. Early studies investigated self-developed DNA libraries, commercially supplied kits are currently being made available to allow a smoother and gradual implementation of such technologies in forensic laboratories. The ForenSeq™ DNA Signature Prep Kit (Illumina, CA) is the first commercially available STR kit that can be used on the MiSeq FGx™ (Illumina, CA) benchtop high-throughput sequencer...
March 1, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28273082/ancient-dna-reveals-late-pleistocene-existence-of-ostriches-in-indian-sub-continent
#19
Sonal Jain, Niraj Rai, Giriraj Kumar, Parul Aggarwal Pruthi, Kumarasamy Thangaraj, Sunil Bajpai, Vikas Pruthi
Ancient DNA (aDNA) analysis of extinct ratite species is of considerable interest as it provides important insights into their origin, evolution, paleogeographical distribution and vicariant speciation in congruence with continental drift theory. In this study, DNA hotspots were detected in fossilized eggshell fragments of ratites (dated ≥25000 years B.P. by radiocarbon dating) using confocal laser scanning microscopy (CLSM). DNA was isolated from five eggshell fragments and a 43 base pair (bp) sequence of a 16S rRNA mitochondrial-conserved region was successfully amplified and sequenced from one of the samples...
2017: PloS One
https://www.readbyqxmd.com/read/28160617/reinforcing-plant-evolutionary-genomics-using-ancient-dna
#20
REVIEW
Rafal M Gutaker, Hernán A Burbano
Improved understanding of ancient DNA (aDNA) biochemical properties coupled with application of next generation sequencing (NGS) methods enabled sequencing and authenticating genomes of historical samples. This advancement ignited a revolution in plant evolutionary genomics by allowing direct observations of past molecular diversity. Analyses of genomes sequenced from temporally distributed samples of Gossypium sp., Phytophthora infestans and Arabidopsis thaliana improved our understanding of the evolutionary rates and time scales at which genome remodeling takes place...
February 1, 2017: Current Opinion in Plant Biology
keyword
keyword
57091
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"