keyword
MENU ▼
Read by QxMD icon Read
search

Ancient history

keyword
https://www.readbyqxmd.com/read/27912242/deciphering-the-origin-of-dogs-from-fossils-to-genomes
#1
Adam H Freedman, Robert K Wayne
Understanding the timing and geographic context of dog origins is a crucial component for understanding human history, as well as the evolutionary context in which the morphological and behavioral divergence of dogs from wolves occurred. A substantial challenge to understanding domestication is that dogs have experienced a complicated demographic history. An initial severe bottleneck was associated with domestication followed by postdivergence gene flow between dogs and wolves, as well as population expansions, contractions, and replacements...
November 28, 2016: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/27907107/a-time-calibrated-mitogenome-phylogeny-of-catfish-teleostei-siluriformes
#2
Ilias Kappas, Spiros Vittas, Chrysoula N Pantzartzi, Elena Drosopoulou, Zacharias G Scouras
A very significant part of the world's freshwater ichthyofauna is represented by ancient, exceptionally diverse and cosmopolitan ray-finned teleosts of the order Siluriformes. Over the years, catfish have been established as an exemplary model for probing historical biogeography at various scales. Yet, several tantalizing gaps still exist in their phylogenetic history, timeline and mode of diversification. Here, we re-examine the phylogeny of catfish by assembling and analyzing almost all publicly available mitogenome data...
2016: PloS One
https://www.readbyqxmd.com/read/27904174/on-the-history-of-classification-in-dermatology
#3
Amiya Kumar Mukhopadhyay
Since the early days of cutaneous medicine, naming of the entities had remained a confusing subject. Earlier texts of all ancient civilisations are almost similar in this topic The Biblical controversy regarding the actual translational meaning of the original Hebrew term Zara 'at has become a centre of controversy amongst many research scholars of the medical history. Similar debate exists about the Ayurvedic term Kustha---- whether it meant leprosy or stood for a number of skin affliction is a matter of controversy...
November 2016: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/27892584/a-short-history-of-phototherapy-vitamin-d-and-skin-disease
#4
Paul Jarrett, Robert Scragg
The earliest record between sun exposure and skin disease goes back five millennia to the ancient Egyptians. The modern scientific era of medical light therapy and skin diseases started in 1877 when Downs and Blunt reported that exposure to light inhibited fungal growth in test tubes. Continuing research generated a growing medical interest in the potential the effects of light to treat and cure skin diseases considered as parasitic. This culminated in the awarding of the 1903 Nobel Prize in Medicine to Niels Finsen for his pioneering work showing that light could successfully treat cutaneous mycobacterium tuberculosis (lupus vulgaris), a disfiguring disorder common at the time...
November 28, 2016: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/27890320/trepanation-in-the-late-bronze-age-and-early-iron-age-in-armenia
#5
A Yu Khudaverdyan
In this study, trepanations in ancient Armenia are discussed. In total, 10 cases were studied. Seven were male, 1 female and 2 were children. Age of the individuals ranged from 6 to 65 years. Among nine cases of surgical trepanations four had possible healing signs. In these cases the individuals showed evidence of previous trauma to the skull or infection (mastoiditis, tuberculosis), suggesting that the operation had been carried out for therapeutic purposes. This provides further support for the suggestion that trepanation (or trephination) was performed primarily for therapeutic purposes, and because of cranial infection or injury...
October 4, 2016: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/27889766/telencephalic-neuronal-activation-associated-with-spatial-memory-in-the-terrestrial-toad-rhinella-arenarum-participation-of-the-medial-pallium-during-navigation-by-geometry
#6
María Inés Sotelo, M Florencia Daneri, Verner Peter Bingman, Rubén N Muzio
Amphibians are central to discussions of vertebrate evolution because they represent the transition from aquatic to terrestrial life, a transition with profound consequences for the selective pressures shaping brain evolution. Spatial navigation is one class of behavior that has attracted the interest of comparative neurobiologists because of the relevance of the medial pallium/hippocampus, yet, surprisingly, in this regard amphibians have been sparsely investigated. In the current study, we trained toads to locate a water goal relying on the boundary geometry of a test environment (Geometry-Only) or boundary geometry coupled with a prominent, visual feature cue (Geometry-Feature)...
November 26, 2016: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/27889059/chad-genetic-diversity-reveals-an-african-history-marked-by-multiple-holocene-eurasian-migrations
#7
Marc Haber, Massimo Mezzavilla, Anders Bergström, Javier Prado-Martinez, Pille Hallast, Riyadh Saif-Ali, Molham Al-Habori, George Dedoussis, Eleftheria Zeggini, Jason Blue-Smith, R Spencer Wells, Yali Xue, Pierre A Zalloua, Chris Tyler-Smith
Understanding human genetic diversity in Africa is important for interpreting the evolution of all humans, yet vast regions in Africa, such as Chad, remain genetically poorly investigated. Here, we use genotype data from 480 samples from Chad, the Near East, and southern Europe, as well as whole-genome sequencing from 19 of them, to show that many populations today derive their genomes from ancient African-Eurasian admixtures. We found evidence of early Eurasian backflow to Africa in people speaking the unclassified isolate Laal language in southern Chad and estimate from linkage-disequilibrium decay that this occurred 4,750-7,200 years ago...
December 1, 2016: American Journal of Human Genetics
https://www.readbyqxmd.com/read/27878212/obesity-paradox-obesity-orthodox-and-the-metabolic-syndrome-an-approach-to-unity
#8
Jesse Roth, Navneet Sahota, Priya Patel, Syed Faizan Mehdi, Mohammad Masum Wiese, Hafiz B Mahboob, Michelle Bravo, Daniel J Eden, Muhammad A Bashir, Amrat Kumar, Farah Alsaati, Irwin J Kurland, Wunnie Brima, Ann Danoff, Alessandra L Szulc, Valentin A Pavlov, Kevin J Tracey, Huan Yang
Obesity and the accompanying metabolic syndrome are strongly associated with heightened morbidity and mortality in older adults. In our review of more than 20 epidemiologic studies of major infectious diseases, including leaders such as tuberculosis, community-acquired pneumonia, and sepsis, obesity was associated with better outcomes. A cause-and-effect relationship between over-nutrition and survival with infection is suggested by results of two preliminary studies of infections in mice, where high fat feeding for 8-10 weeks provided much better outcomes...
November 16, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27866890/genome-sequence-of-a-5-310-year-old-maize-cob-provides-insights-into-the-early-stages-of-maize-domestication
#9
Jazmín Ramos-Madrigal, Bruce D Smith, J Víctor Moreno-Mayar, Shyam Gopalakrishnan, Jeffrey Ross-Ibarra, M Thomas P Gilbert, Nathan Wales
The complex evolutionary history of maize (Zea mays L. ssp. mays) has been clarified with genomic-level data from modern landraces and wild teosinte grasses [1, 2], augmenting archaeological findings that suggest domestication occurred between 10,000 and 6,250 years ago in southern Mexico [3, 4]. Maize rapidly evolved under human selection, leading to conspicuous phenotypic transformations, as well as adaptations to varied environments [5]. Still, many questions about the domestication process remain unanswered because modern specimens do not represent the full range of past diversity due to abandonment of unproductive lineages, genetic drift, on-going natural selection, and recent breeding activity...
November 11, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/27864882/diversification-of-the-kinetic-properties-of-yeast-nadp-glutamate-dehydrogenase-isozymes-proceeds-independently-of-their-evolutionary-origin
#10
Carlos Campero-Basaldua, Héctor Quezada, Lina Riego-Ruíz, Dariel Márquez, Erendira Rojas, James González, Mohammed El-Hafidi, Alicia González
In the yeast Saccharomyces cerevisiae, the ScGDH1 and ScGDH3 encoded glutamate dehydrogenases (NADP-GDHs) catalyze the synthesis of glutamate from ammonium and α-ketoglutarate (α-KG). Previous kinetic characterization showed that these enzymes displayed different allosteric properties and respectively high or low rate of α-KG utilization. Accordingly, the coordinated action of ScGdh1 and ScGdh3, regulated balanced α-KG utilization for glutamate biosynthesis under either fermentative or respiratory conditions, safeguarding energy provision...
November 19, 2016: MicrobiologyOpen
https://www.readbyqxmd.com/read/27864009/evolutionary-dynamics-of-triosephosphate-isomerase-gene-intron-location-pattern-in-metazoa-a-new-perspective-on-intron-evolution-in-animals
#11
Bing Chen, Jingru Shao, Huifu Zhuang, Jianfan Wen
Intron evolution, including its dynamics in the evolutionary transitions and diversification of eukaryotes, remains elusive. Inadequate taxon sampling due to data shortage, unclear phylogenetic framework, and inappropriate outgroup application might be among the causes. Besides, the integrity of all the introns within a gene was often neglected previously. Taking advantage of the ancient conserved triosephosphate isomerase gene (tim), the relatively robust phylogeny of Metazoa, and choanoflagellates as outgroup, the evolutionary dynamics of tim intron location pattern (ILP) in Metazoa was investigated...
November 15, 2016: Gene
https://www.readbyqxmd.com/read/27860510/the-case-of-the-missing-ancient-fungal-polyploids
#12
Matthew A Campbell, Austen R D Ganley, Toni Gabaldón, Murray P Cox
Polyploidy-the increase in the number of whole chromosome sets-is an important evolutionary force in eukaryotes. Polyploidy is well recognized throughout the evolutionary history of plants and animals, where several ancient events have been hypothesized to be drivers of major evolutionary radiations. However, fungi provide a striking contrast: while numerous recent polyploids have been documented, ancient fungal polyploidy is virtually unknown. We present a survey of known fungal polyploids that confirms the absence of ancient fungal polyploidy events...
December 2016: American Naturalist
https://www.readbyqxmd.com/read/27859602/integrating-archaeology-and-ancient-dna-to-address-invasive-species-colonization-in-the-gulf-of-alaska
#13
Catherine West, Courtney A Hofman, Steve Ebbert, John Martin, Sabrina Shirazi, Samantha Dunning, Jesus E Maldonado
The intentional and unintentional movement of plants and animals by humans has transformed ecosystems and landscapes globally. Assessing when and how a species was introduced are central to managing these transformed landscapes, particularly in island environments. In the Gulf of Alaska, there is considerable interest in the history of mammal introductions and rehabilitating Gulf of Alaska island environments by eradicating those mammals classified as invasive species. The Arctic ground squirrel (Urocitellus parryii) is of concern because of its effect on vegetation and seabirds on Gulf of Alaska islands...
November 17, 2016: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/27855648/genome-and-transcriptome-sequencing-characterises-the-gene-space-of-macadamia-integrifolia-proteaceae
#14
Catherine J Nock, Abdul Baten, Bronwyn J Barkla, Agnelo Furtado, Robert J Henry, Graham J King
BACKGROUND: The large Gondwanan plant family Proteaceae is an early-diverging eudicot lineage renowned for its morphological, taxonomic and ecological diversity. Macadamia is the most economically important Proteaceae crop and represents an ancient rainforest-restricted lineage. The family is a focus for studies of adaptive radiation due to remarkable species diversification in Mediterranean-climate biodiversity hotspots, and numerous evolutionary transitions between biomes. Despite a long history of research, comparative analyses in the Proteaceae and macadamia breeding programs are restricted by a paucity of genetic information...
November 17, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27855173/global-population-structure-of-a-worldwide-pest-and-virus-vector-genetic-diversity-and-population-history-of-the-bemisia-tabaci-sibling-species-group
#15
Margarita Hadjistylli, George K Roderick, Judith K Brown
The whitefly Bemisia tabaci sibling species (sibsp.) group comprises morphologically indiscernible lineages of well-known exemplars referred to as biotypes. It is distributed throughout tropical and subtropical latitudes and includes the contemporary invasive haplotypes, termed B and Q. Several well-studied B. tabaci biotypes exhibit ecological and biological diversity, however, most members are poorly studied or completely uncharacterized. Genetic studies have revealed substantial diversity within the group based on a fragment of the mitochondrial cytochrome oxidase I (mtCOI) sequence (haplotypes), with other tested markers being less useful for deep phylogenetic comparisons...
2016: PloS One
https://www.readbyqxmd.com/read/27853534/young-relicts-and-old-relicts-a-novel-palaeoendemic-vertebrate-from-the-australian-central-uplands
#16
Paul M Oliver, Peter J McDonald
Climatic change, and in particular aridification, has played a dominant role in shaping Southern Hemisphere biotas since the mid-Neogene. In Australia, ancient and geologically stable ranges within the vast arid zone have functioned as refugia for populations of mesic taxa extirpated from surrounding areas, yet the extent to which relicts may be linked to major aridification events before or after the Pliocene has not been examined in detail. Here we use molecular phylogenetic and morphological data to show that isolated populations of saxicoline geckos in the genus Oedura from the Australian Central Uplands, formerly confounded as a single taxon, actually comprise two divergent species with contrasting histories of isolation...
October 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27853323/ancient-texts-to-pubmed-a-brief-history-of-the-peer-review-process
#17
P R Farrell, L Magida Farrell, M K Farrell
The formal evaluation of scientific literature by invited referees (peer reviewers) is a relatively recent phenomenon and now is considered a cornerstone of modern science. However, its roots can be traced back to antiquity. As the speed and complexity of scientific information and publishing increases in the digital age, peer review must continue to evolve. To understand the future direction of peer review, we must understand its past. Here, we briefly explore the history of scientific peer review. This may help us predict and design appropriate peer review for the new era...
November 17, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27853133/genetic-trail-for-the-early-migrations-of-aisin-gioro-the-imperial-house-of-the-qing-dynasty
#18
Lan-Hai Wei, Shi Yan, Ge Yu, Yun-Zhi Huang, Da-Li Yao, Shi-Lin Li, Li Jin, Hui Li
The House of Aisin Gioro, the imperial clan of Qing dynasty (1644-1911), affected the history of China and the formation of Manchu ethnicity greatly. However, owing to the lack of historical records and archeological evidences, the origin of the House of Aisin Gioro remains ambiguous. To clarify the origin of Aisin Gioro clan, we conducted whole Y-chromosome sequencing on three samples and Y-single-nucleotide polymorphism (Y-SNP) genotyping on other four samples beside those reported in previous work. We confirmed that the paternal lineage of the Aisin Gioro clan belongs to haplogroup C3b1a3a2-F8951, a brother branch of C3*-Star Cluster (currently named as C3b1a3a1-F3796, once linked to Genghis Khan), which is quite different from the predominant lineage C3c-M48 in other Tungusic-speaking populations...
November 17, 2016: Journal of Human Genetics
https://www.readbyqxmd.com/read/27853112/detection-trend-of-helminth-eggs-in-the-strata-soil-samples-from-ancient-historic-places-of-korea
#19
REVIEW
Min Seo, Jong-Yil Chai, Myeung Ju Kim, Sang Yuk Shim, Ho Chul Ki, Dong Hoon Shin
For several years, we have conducted a series of studies on the patterns of ancient parasitism prevailing in the soil of rural and urban areas of past Kingdom of Korea. Actually, during our survey of paleoparasitology in archaeological sites of Korean peninsula, numerous ancient parasite eggs were discovered in the samples from the city districts of Hansung (Joseon) and Buyeo (Baikje), the palace moat at Gyeongju (Silla), shell-midden site at Bonghwang-dong (Silla to Joseon), and the reservoir found in Hwawangsansung fortress (Silla)...
October 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/27848937/reconstructing-druze-population-history
#20
Scarlett Marshall, Ranajit Das, Mehdi Pirooznia, Eran Elhaik
The Druze are an aggregate of communities in the Levant and Near East living almost exclusively in the mountains of Syria, Lebanon and Israel whose ~1000 year old religion formally opposes mixed marriages and conversions. Despite increasing interest in genetics of the population structure of the Druze, their population history remains unknown. We investigated the genetic relationships between Israeli Druze and both modern and ancient populations. We evaluated our findings in light of three hypotheses purporting to explain Druze history that posit Arabian, Persian or mixed Near Eastern-Levantine roots...
November 16, 2016: Scientific Reports
keyword
keyword
80448
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"