1,840 results match your criteria Reticulate Pigmented Anomaly


Reticulate acropigmentation of Kitamura with a novel mutation in ADAM10.

Clin Exp Dermatol 2018 Nov 28. Epub 2018 Nov 28.

Department of Dermatology, Peking University First Hospital, Beijing, China.

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November 2018

In vitro genotoxicity assessment of an oxidized dextrin-based hydrogel for biomedical applications.

J Appl Toxicol 2018 Nov 28. Epub 2018 Nov 28.

CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.

Hydrogels are three-dimensional, crosslinked networks of hydrophilic polymers swollen with a large amount of water or biological fluids, without dissolving. Dextrin, a low-molecular-weight carbohydrate composed by glucose residues, has been used to develop an injectable hydrogel for biomedical applications. Dextrin was first oxidized to introduce aldehyde groups, which then reticulate with adipic acid dihydrazide, forming the dextrin-based hydrogel (HG). Read More

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November 2018
1 Read

Isolation of a new natural kingiside aglucone derivative and other anti-inflammatory constituents from Syringa reticulata.

Nat Prod Res 2018 Nov 23:1-7. Epub 2018 Nov 23.

a Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education , Yanbian University College of Pharmacy , Yanji , P. R. China.

A new secoiridoid, (1R,5S,8S,9R)-1-methyl-kingiside aglucone (1), along with nine known compounds (2-10), were isolated from the ethanol extract of the stem bark of Syringa reticulata (Bl.) Hara. The structure of compound 1 was elucidated using HR-ESI-MS, 1D and 2D NMR spectroscopy. Read More

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November 2018
1 Read

Imbalance of tyrosine by modulating TyrA arogenate dehydrogenases impacts growth and development of Arabidopsis thaliana.

Plant J 2018 Nov 20. Epub 2018 Nov 20.

Department of Botany, University of Wisconsin, B214 Birge Hall, 430 Lincoln Drive, Madison, WI, 53706, USA.

L-Tyrosine is an essential aromatic amino acid required for synthesis of proteins and a diverse array of plant natural products; however, little is known how the levels of tyrosine are controlled in planta and linked to overall growth and development. Most plants synthesize tyrosine by TyrA arogenate dehydrogenases, which are strongly feedback inhibited by tyrosine and encoded by TyrA1 and TyrA2 genes in Arabidopsis thaliana. While TyrA enzymes have been extensively characterized at biochemical levels, their in planta functions remain uncertain. Read More

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November 2018
2 Reads

Recovering host cell-free Anaplasma phagocytophilum from HL-60 cells by using rock tumbler grit in comparison to the syringe lysis method.

Ticks Tick Borne Dis 2018 Nov 13. Epub 2018 Nov 13.

Institute for Infectious Diseases and Zoonoses, Department of Veterinary Sciences, Faculty of Veterinary Medicine, LMU Munich, Veterinaerstr. 13, 80539, Munich, Germany. Electronic address:

Anaplasma phagocytophilum (Ap) is a tick-transmitted obligate intracellular bacterium and the causative agent of the granulocytic anaplasmosis in various species of domestic animals and in humans. During intracellular development Ap transforms from a dense-cored cell form into a reticulate cell form and vice versa. For isolation of intracellular bacteria, a range of different purification methods is used. Read More

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November 2018

S-Cluster++: a fast program for solving the cluster containment problem for phylogenetic networks.

Bioinformatics 2018 Sep;34(17):i680-i686

Department of Mathematics, National University of Singapore, Singapore.

Motivation: Comparative genomic studies indicate that extant genomes are more properly considered to be a fusion product of random mutations over generations (vertical evolution) and genomic material transfers between individuals of different lineages (reticulate transfer). This has motivated biologists to use phylogenetic networks and other general models to study genome evolution. Two fundamental algorithmic problems arising from verification of phylogenetic networks and from computing Robinson-Foulds distance in the space of phylogenetic networks are the tree and cluster containment problems. Read More

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September 2018

Genetic diversity and hybrid formation in Central European club-mosses (Diphasiastrum, Lycopodiaceae) - New insights from cp microsatellites, two nuclear markers and AFLP.

Mol Phylogenet Evol 2018 Nov 9;131:181-192. Epub 2018 Nov 9.

Lehrstuhl für Evolution und Biodiversität der Pflanzen, Ruhr-Universität Bochum, D-44780 Bochum, Germany.

In Europe, the genus Diphasiastrum (Lycopodiophyta) forms a reticulate network of six diploid taxa, including three parent species (D. alpinum, D. complanatum and D. Read More

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November 2018
3 Reads

Genomewide SNP markers breathe new life into phylogeography and species delimitation for the problematic short-necked turtles (Chelidae: Emydura) of eastern Australia.

Mol Ecol 2018 Nov 7. Epub 2018 Nov 7.

Institute for Applied Ecology, University of Canberra, Canberra, Australian Capital Territory, Australia.

Understanding the evolutionary history of diversifying lineages and the delineation of evolutionarily significant units and species remains major challenges for evolutionary biology. Low-cost representational sampling of the genome for single nucleotide polymorphisms shows great potential at the temporal scales that are typically the focus of species delimitation and phylogeography. We apply these markers to a case study of a freshwater turtle, Emydura macquarii, whose systematics has so far defied resolution, to bring to light a dynamic system of substantive allopatric lineages diverging on independent evolutionary trajectories, but held back in the process of speciation by low level and episodic exchange of alleles across drainage divides on various timescales. Read More

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November 2018

Initial Characterization of the Two ClpP Paralogs of Suggests Unique Functionality for Each.

J Bacteriol 2018 Nov 5. Epub 2018 Nov 5.

Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha, NE

is an obligate intracellular bacterium that differentiates between two distinct functional and morphological forms during its developmental cycle: elementary bodies (EBs) and reticulate bodies (RBs). EBs are non-dividing, small electron dense forms that infect host cells. RBs are larger, non-infectious replicative forms that develop within a membrane-bound vesicle, termed an inclusion. Read More

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November 2018
3 Reads

Phylogenomic Signatures of Ancient Introgression in a Rogue Lineage of Darters (Teleostei: Percidae).

Syst Biol 2018 Nov 3. Epub 2018 Nov 3.

Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, USA.

Evolutionary history is typically portrayed as a branching phylogenetic tree, yet not all evolution proceeds in a purely bifurcating manner. Introgressive hybridization is one process that results in reticulate evolution. Most known examples of genome-wide introgression occur among closely related species with relatively recent common ancestry; however, we present evidence for ancient hybridization and genome-wide introgression between major stem lineages of darters, a species-rich clade of North American freshwater fishes. Read More

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November 2018

Micromorphological observation of seed coat of Eucalyptus species (Myrtaceae) using scanning electron microscopy technique.

Microsc Res Tech 2018 Oct 23. Epub 2018 Oct 23.

Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan.

Seed shape, surface cells shape, arrangement, anticlinal wall pattern, and periclinal wall protuberances were recorded for nine species of Eucalyptus (Myrtaceae) using scanning electron microscopy to determine the importance of seed morphological characters as an additional tool for identification. Most of the seeds were found ovate and some seeds were elliptic and cuboid in shape. Almost reticulate regular seed surface patterns were observed. Read More

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October 2018
5 Reads

Scanning Electron Microscopy (SEM) and Light Microscopy (LM)-based Palyno-morphological views of Solanaceae in Western Himalaya.

Microsc Res Tech 2018 Oct 23. Epub 2018 Oct 23.

Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan.

In this study, plants belonging to family Solanaceae growing in Western Himalaya region have been observed palynologically under Light Microscope and Scanning electron microscope. Present investigation comprises of 10 genera and 23 species, namely, Atropa acuminata, Capsicum decoraticus, Capsicum frutescens, Cestrum aurantiacum, Cestrum diurnum, Cestrum nocturnum, Datura alba, Datura innoxia, Datura stramonium, Hyoscymus niger, Lycopersicon esculentum, Nicotiana rustica, Nicotiana tabacum, Petunia alba, Petunia hybrida, Solanum erianthum, Solanum melongena, Solanum miniatum, Solanum pseudocapsicum, Solanum surratense, Solanum tuberosum, Withania coagulans, Withania somnifera. Solanaceae is a eurypalynous family. Read More

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October 2018
1 Read

Studies on the complementary relationship of surface ornamentations between megaspores and microspores of Selaginella P. Beauv. (Selaginellaceae).

Microsc Res Tech 2018 Oct 23. Epub 2018 Oct 23.

College of Life Sciences, Capital Normal University, Beijing, China.

In the present study, the surface ornamentations of both megaspores and microspores of 20 species of Selaginella were studied using scanning electron microscopy. The results of the present study showed that the megaspore surface ornamentations are complementary to the corresponding microspore surface ornamentations. In detail, reticulate surface ornamentation of megaspores is complementary to granulate and baculate ornamentations of microspores; verrucate ornamentation of megaspores is complementary to scabrate ornamentation of microspores; granulate ornamentation of megaspores is complementary to verrucate-rugulate or verrucate ornamentations of microspores; verrucate-rugulate ornamentation of megaspores is complementary to spinulate, verrucate, or verrucate-rugulate ornamentations of microspores; tuberculate ornamentation of megaspores is complementary to lamellate, tuberculate or verrucate ornamentations of microspores. Read More

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October 2018

The Chrysanthemum nankingense Genome Provides Insights into the Evolution and Diversification of Chrysanthemum Flowers and Medicinal Traits.

Mol Plant 2018 Dec 18;11(12):1482-1491. Epub 2018 Oct 18.

Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China. Electronic address:

The Asteraceae (Compositae), a large plant family of approximately 24 000-35 000 species, accounts for ∼10% of all angiosperm species and contributes a lot to plant diversity. The most representative members of the Asteraceae are the economically important chrysanthemums (Chrysanthemum L.) that diversified through reticulate evolution. Read More

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December 2018
1 Read

Suggested mechanisms underlying pollen wall development in Ambrosia trifida (Asteraceae: Heliantheae).

Protoplasma 2018 Oct 19. Epub 2018 Oct 19.

Royal Botanic Garden Edinburgh, 20a Inverleith Row, Edinburgh, EH3 5LR, UK.

By a detailed ontogenetic study of Ambrosia trifida pollen, tracing each stage of development with TEM, we aim to understand the establishment of the pollen wall and to unravel the mechanisms underlying sporoderm development. The main steps of exine ontogeny in Ambrosia trifida, observed in the microspore periplasmic space, are as follows: spherical units, gradually transforming into columns, then to rod-like units; the appearance of the initial reticulate tectum; growth of columellae under the tectum and initial sporopollenin accumulation on them; the appearance of the endexine lamellae, first in fragments, then in long laminae; the cessation of the glycocalyx growth and its detachment from the plasma membrane, resulting in the appearance of gaps; massive accumulation of sporopollenin on the tectum, columellae, and endexine, and the appearance of the foot layer at the young post-tetrad stage, accompanied by establishment of caveae in sites of the former gaps; and final massive sporopollenin accumulation. This sequence of developmental events in all probability corresponds to the sequence of self-assembling micellar mesophases. Read More

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October 2018
4 Reads

Reticulate evolution within a spruce (Picea) species complex revealed by population genomic analysis.

Evolution 2018 Oct 12. Epub 2018 Oct 12.

Key Laboratory for Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, P. R. China.

The role of reticulation in the rapid diversification of organisms is attracting greater attention in evolutionary biology. Evidence of genetic exchange between diverging taxa is reported frequently, although most studies fail to show how hybridization and introgression contribute to the adaptation and differentiation of introgressed taxa. Here, we report a population genomics approach to test the role of hybridization and introgression in the evolution of the Picea likiangensis species complex, which comprises four taxa occurring in the biodiversity hotspot of the Hengduan-Himalayan mountains. Read More

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October 2018
2 Reads
4.610 Impact Factor

Poecilia (Pamphorichthys) akroa, a new poeciliid species (Cyprinodontiformes: Poeciliidae) from the Rio Tocantins basin, Brazil.

Zootaxa 2018 Aug 22;4461(3):438-444. Epub 2018 Aug 22.

Universidade Federal do Estado do Rio de Janeiro, Instituto de Biociências, Departamento de Ciências do Ambiente. Av. Pasteur, 458/sala 512F, 22290-240, Rio de Janeiro, RJ, Brazil..

A new species, Poecilia (Pamphorichthys) akroa, is described from the Rio Tocantins drainage, Brazil. The new species differs from the remaining species of the genus by the possession of 10 or 11 pectoral-fin rays, entire preopercular ramus and posterior portion of the supraorbital ramus of the cephalic sensory system enclosed in canals, a faint longitudinal band along the body, a single gonapophysis, a homogeneous reticulate color pattern on sides of body, urogenital region of females heavily pigmented, distalmost segments of the anterior branch (4a) of the fourth gonopodial ray fused into an elongated segment turned anteriorly, subdistal segments of anterior branch (5a) of fifth gonopodial ray simple, without anterior (ventral) projections, dorsal fin with pigmentation at its distal portion and with a basal black blotch, and chromatophores more concentrated on the posterior margin of the mid-ventral scale series of the caudal peduncle and ventrolateral margin of the adjacent scales forming a series of rhombi posterior to anal fin. Read More

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August 2018
12 Reads

Rising from the ashes: resurrection of the Malagasy chameleons Furcifer monoceras and F. voeltzkowi (Squamata: Chamaeleonidae), based on micro-CT scans and external morphology.

Zootaxa 2018 Sep 24;4483(3):549-566. Epub 2018 Sep 24.

Zoologische Staatssammlung München (ZSM-SNSB), Münchhausenstr. 21, 81247 München, Germany Biozentrum der LMU München, Großhaderner Straße 2, 82152 Planegg-Martinsried, Germany.

The taxonomy of the Malagasy chameleon Furcifer rhinoceratus (Gray, 1845) is poorly resolved. The aim of this study is to clarify the taxonomic status of Chamaeleon voeltzkowi Boettger, 1893 and Chamaeleon monoceras Boettger, 1913 both only known from single or very few specimens mostly collected more than 100 years ago and currently considered as synonyms of Furcifer rhinoceratus. Using osteological data from micro-X-ray computed tomography (micro-CT) combined with traditional morphological characters and morphometrics we resurrect both taxa from the synonymy of F. Read More

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September 2018
1 Read

New taxa of oribatid mites from Korup National Park (Cameroon). The genus Pergalumna (Acari, Oribatida, Galumnidae), with description of three new species and a key to known species from the Ethiopian region.

Zootaxa 2018 May 30;4425(2):201-222. Epub 2018 May 30.

Tyumen State University, Tyumen, Russia..

Three new species of oribatid mites of the genus Pergalumna (Oribatida, Galumnidae) are described from litter and soil in the Korup National Park (Cameroon). Pergalumna jenoi sp. nov. Read More

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Taxonomic Importance of Pollen Morphology for Some Species of Brassicaceae.

Pak J Biol Sci 2018 Jan;21(5):215-223

Background And Objective: Pollen morphology is one of the significant tools in solving some taxonomic problems on the family, generic or specific level and has become part of the multidisciplinary and collaborative approach in plant systematic and evolution. Therefore, this study aimed to investigate and describe the pollen morphology of 10 species belongs to 9 genera and five tribes of Brassicaceae from eastern region of Saudi Arabia by using light and scanning electron microscope.

Materials And Methods: To study the pollen morphology for ten species representing 9 genera and 5 tribes of Brassicaceae the Light Microscope (LM) and Scanning Electron Microscope (SEM). Read More

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January 2018
1 Read

Dermatologic findings of vitamin B deficiency in infants.

Pediatr Dermatol 2018 Nov 11;35(6):796-799. Epub 2018 Oct 11.

Division of Pediatric Neurology, Department of Pediatrics, Dayanand Medical College & Hospital, Ludhiana, Punjab, India.

Background/objectives: Vitamin B deficiency in infants is uncommonly reported from developed countries and generally lacks dermatologic manifestations. On the contrary, infantile vitamin B deficiency is common in India and cutaneous manifestations are a constant feature, although often overshadowed by neurologic and hematological manifestations. The aim of this study was to describe the skin changes of vitamin B deficiency in infants. Read More

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November 2018
2 Reads

Identification of green energy ranunculaceous flora of district Chitral, Northern Pakistan using pollen features through scanning electron microscopy.

Microsc Res Tech 2018 Sep 10;81(9):1004-1016. Epub 2018 Oct 10.

Department of Plant Sciences, Quaid-I-Azam University, Islamabad, Pakistan.

Pollen micro-morphological features have proven to be helpful for the plant taxonomists in the identification and classification of plants. The utilization of this plantmayhelpfulin the areas of lignocellulosic conversion to biofuels and diversify application toward biomass. The current study was planned with the aim to evaluate the pollen features of complex Ranunculaceous flora of District Chitral, Northern Pakistan using both scanning electron microscopy (SEM) and Light Microscope (LM) for their taxonomic importance. Read More

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September 2018
1 Read

Phenotypic and life-history diversification in Amazonian frogs despite past introgressions.

Mol Phylogenet Evol 2019 Jan 5;130:169-180. Epub 2018 Oct 5.

Association Kwata, 16 avenue Pasteur, Cayenne, French Guiana; Institut Pasteur de la Guyane, 23 avenue Pasteur, Cayenne, French Guiana.

The advent of genomics in phylogenetics and population genetics strengthened the perception that conflicts among gene trees are frequent and often due to introgression. However, hybridization occurs mostly among species that exhibit little phenotypic differentiation. A recent study delineating species in Anomaloglossus, a frog genus endemic to the Guiana Shield, identified an intriguing pattern in the A. Read More

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January 2019
1 Read

Tree-based networks: characterisations, metrics, and support trees.

J Math Biol 2018 Oct 3. Epub 2018 Oct 3.

School of Mathematics and Statistics, University of Canterbury, Christchurch, New Zealand.

Phylogenetic networks generalise phylogenetic trees and allow for the accurate representation of the evolutionary history of a set of present-day species whose past includes reticulate events such as hybridisation and lateral gene transfer. One way to obtain such a network is by starting with a (rooted) phylogenetic tree T, called a base tree, and adding arcs between arcs of T. The class of phylogenetic networks that can be obtained in this way is called tree-based networks and includes the prominent classes of tree-child and reticulation-visible networks. Read More

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October 2018

Repeated range expansion and niche shift in a volcanic hotspot archipelago: Radiation of C Hawaiian subgenus (Euphorbiaceae).

Ecol Evol 2018 Aug 30;8(16):8523-8536. Epub 2018 Jul 30.

Department of Ecology and Evolutionary Biology University of Michigan, Ann Arbor Ann Arbor Michigan.

Woody perennial plants on islands have repeatedly evolved from herbaceous mainland ancestors. Although the majority of species in subgenus section (Euphorbiaceae) are small and herbaceous, a clade of 16 woody species diversified on the Hawaiian Islands. They are found in a broad range of habitats, including the only known C plants adapted to wet forest understories. Read More

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August 2018
1 Read

Spongispora temasekensis, a new boletoid genus and species from Singapore.

Mycologia 2018 Sep-Oct;110(5):919-929. Epub 2018 Sep 14.

a Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences , Heilongtan, Kunming 650201 , Yunnan , China.

Dipterocarp forests are a typical and widespread type of vegetation in tropical lowlands of southeast Asia that harbor a high diversity of ectomycorrhizal fungi, including boletes. Based on molecular and morphological characters, a unique bolete found in Singapore associated with the dipterocarp Hopea odorata was proven to represent a new species in the proposed new genus Spongispora. Phylogenetic analyses of five loci indicate that Spongispora is nested in the subfamily Leccinoideae of the Boletaceae, most closely related to an inclusive clade of Leccinum, Leccinellum, Octaviania, Rossbeevera, and Turmalinea. Read More

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September 2018
5 Reads

Three New Iridoid Derivatives Have Been Isolated from the Stems of (Havil.) Merr. with Cytotoxic Activity on Hepatocellular Carcinoma Cells.

Molecules 2018 Sep 8;23(9). Epub 2018 Sep 8.

The Ph.D Program for Cancer Biology and Drug Discovery, China Medical University and Academia Sinica, Taichung 404, Taiwan.

Three new iridoids, namely neonanin A (), neonanin B () and neoretinin A (), as well as twelve known compounds, 6-hydroxy-7-methyl-1-oxo-4-carbomethoxyoctahydrocyclopenta[]pyran (), 4--alyxialactone (), loganetin (), loganin (), phenylcoumaran-α'-aldehyde (), cleomiscosin A (), ficusal (), balanophonin (), vanillic acid (), -coumaric acid (), -abscisic acid (), and -abscisic acid () were isolated from the stems of (Havil.) Merr. These new structures were determined by the detailed analysis of spectroscopic data and comparison with the data of known analogues. Read More

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September 2018
4 Reads
2.420 Impact Factor

Hybridization and extensive mitochondrial introgression among fire salamanders in peninsular Italy.

Sci Rep 2018 Sep 4;8(1):13187. Epub 2018 Sep 4.

Tuscia University, Department of Ecological and Biological Sciences, Viterbo, 01100, Italy.

Discordance between mitochondrial and nuclear patterns of population genetic structure is providing key insights into the eco-evolutionary dynamics between and within species, and their assessment is highly relevant to biodiversity monitoring practices based on DNA barcoding approaches. Here, we investigate the population genetic structure of the fire salamander Salamandra salamandra in peninsular Italy. Both mitochondrial and nuclear markers clearly identified two main population groups. Read More

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September 2018

Fluidigm2PURC: Automated processing and haplotype inference for double-barcoded PCR amplicons.

Appl Plant Sci 2018 Jun 28;6(6):e01156. Epub 2018 Jun 28.

Department of Biological Sciences University of Idaho 875 Perimeter Drive, MS 3051 Moscow Idaho 83844-3051 USA.

Premise Of The Study: Targeted enrichment strategies for phylogenomic inference are a time- and cost-efficient way to collect DNA sequence data for large numbers of individuals at multiple, independent loci. Automated and reproducible processing of these data is a crucial step for researchers conducting phylogenetic studies.

Methods And Results: We present Fluidigm2PURC, an open source Python utility for processing paired-end Illumina data from double-barcoded PCR amplicons. Read More

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June 2018
1 Read

Tuber brennemanii and Tuber floridanum: Two new Tuber species are among the most commonly detected ectomycorrhizal taxa within commercial pecan (Carya illinoinensis) orchards.

Mycologia 2018 Jul-Aug;110(4):780-790. Epub 2018 Aug 21.

a Department of Plant Pathology , University of Florida , Gainesville , Florida 32611.

Truffles are sequestrate hypogeous fungi, and most form ectomycorrhizal (ECM) associations with trees. Truffles belonging to the genus Tuber (Pezizales, Ascomycota), "true truffles," associate with diverse plant hosts, including economically important species such as pecan (Carya illinoinensis). Morphological and phylogenetic studies delimited several major lineages of Tuber, which include many cryptic and undescribed species. Read More

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August 2018
6 Reads

A transcriptome-based resolution for a key taxonomic controversy in Cupressaceae.

Ann Bot 2018 Aug 16. Epub 2018 Aug 16.

Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh, UK.

Background And Aims: Rapid evolutionary divergence and reticulate evolution may result in phylogenetic relationships that are difficult to resolve using small nucleotide sequence data sets. Next-generation sequencing methods can generate larger data sets that are better suited to solving these puzzles. One major and long-standing controversy in conifers concerns generic relationships within the subfamily Cupressoideae (105 species, approx. Read More

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August 2018
7 Reads

On the mechanisms of development in monocot and eudicot leaves.

New Phytol 2018 Aug 14. Epub 2018 Aug 14.

Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.

Contents Summary I. Introduction II. Leaf zones in monocot and eudicot leaves III. Read More

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[Prurigo pigmentosa during pregnancy].

Ann Dermatol Venereol 2018 Aug 10. Epub 2018 Aug 10.

Service de dermatologie, université Côte d'Azur, CHU, Nice, France; Inserm U1065, équipe 12, C3M, université Côte d'Azur, Nice, France. Electronic address:

Introduction: Prurigo pigmentosa is a rare inflammatory dermatosis characterized by pruritic and reticulate papules on the trunk leaving hyperpigmentation. This dermatosis has been rarely described outside Asia. The pathophysiology remains obscure. Read More

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August 2018
9 Reads

Virulence-related comparative transcriptomics of infectious and non-infectious chlamydial particles.

BMC Genomics 2018 Aug 2;19(1):575. Epub 2018 Aug 2.

Department of Cell and Molecular Biology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute (HKI), Beutenbergstraße 11A, 07745, Jena, Germany.

Background: Members of the phylum Chlamydiae are obligate intracellular pathogens of humans and animals and have a serious impact on host health. They comprise several zoonotic species with varying disease outcomes and prevalence. To investigate differences in virulence, we focused on Chlamydia psittaci, C. Read More

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August 2018
8 Reads

Galli-Galli Disease Presenting as a Lentigo-like Eruption: A Further Clinical Feature in the Wide Spectrum of Reticulate Pigment Disorders.

Acta Dermatovenerol Croat 2017 Dec;25(4):300-302

Dario Didona, MD, Prima Divisione Dermatologia Istituto Dermopatico dell'Immacolata, Via dei Monti di Creta 104, 00167 Rome , Italy;

Dear Editor, Reticulate pigmentary disorders (RPD) is a term used to classify a spectrum of several acquired and congenital disorders. Different clinical features can be present, including a reticular pattern and a freckle-like pattern with hyper- or hypo-pigmented macules (1). Dowling-Degos disease (DDD), an autosomal dominant genodermatosis, is the main type of RPD (2). Read More

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December 2017
5 Reads

Nobiletin and 5-Hydroxy-6,7,8,3',4'-pentamethoxyflavone Ameliorate 12- O-Tetradecanoylphorbol-13-acetate-Induced Psoriasis-Like Mouse Skin Lesions by Regulating the Expression of Ki-67 and Proliferating Cell Nuclear Antigen and the Differentiation of CD4 T Cells through Mitogen-Activated Protein Kinase Signaling Pathways.

J Agric Food Chem 2018 Aug 30;66(31):8299-8306. Epub 2018 Jul 30.

Institute of Biomedical Science , National Chung-Hsing University , Taichung 402 , Taiwan.

Psoriasis is a chronic and benign proliferative skin disease. Flavonoids in chenpi (aged tangerine peel) from tangerine ( Citrus reticulate Blanco), such as nobiletin (Nob), tangeretin, and 5-hydroxy-6,7,8,3',4'-pentamethoxyflavone (5-HPMF), possess anti-inflammation and regulation of immune activity among others. In this study, psoriasis-like skin lesions were induced by 12- O-tetradecanoylphorbol-13-acetate (TPA), and the preventive effect of Nob and 5-HPMF on psoriasis-like skin lesions was evaluated. Read More

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August 2018
21 Reads
2.912 Impact Factor

Inhibition of the Protein Phosphatase CppA Alters Development of Chlamydia trachomatis.

J Bacteriol 2018 Oct 10;200(19). Epub 2018 Sep 10.

Department of Microbiology, Southern Illinois University, Carbondale, Illinois, USA

Chlamydiae are obligate intracellular Gram-negative bacterial pathogens that undergo an essential, but poorly understood, biphasic developmental cycle transitioning between the infectious elementary body and the replicative reticulate body. Ser/Thr/Tyr phosphorylation has been increasingly recognized for its role in regulating bacterial physiology. spp. Read More

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October 2018
7 Reads

Detecting introgression despite phylogenetic uncertainty: The case of the South American siskins.

Mol Ecol 2018 Nov 14;27(22):4350-4367. Epub 2018 Aug 14.

Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, New Mexico.

Genetic introgression among closely related species is a widespread phenomenon across the Tree of Life and could be an important source of adaptive variation during early stages of diversification. In particular, genomic studies have revealed that many rapidly radiating clades tend to have complex, reticulate evolutionary histories. Although rapid radiations appear to be susceptible to introgression, they present special challenges for its detection because formal tests require accurate phylogenies, and paradoxically, introgression itself may obscure evolutionary relationships. Read More

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November 2018
18 Reads

Influence of hydrodynamic pressure and vein strength on the super-elasticity of honeybee wings.

J Insect Physiol 2018 Aug - Sep;109:100-106. Epub 2018 Jul 10.

Division of Intelligent and Biomechanical Systems, State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, PR China.

The wings of honeybees (Apis mellifera L.) usually produce bending and torsional deformations during flapping wing movement. These deformations endow honeybees with perfect aerodynamic control to escape predators and exploit scattered resources. Read More

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Review of Chlamydia trachomatis viability methods: assessing the clinical diagnostic impact of NAAT positive results.

Expert Rev Mol Diagn 2018 Aug 19;18(8):739-747. Epub 2018 Jul 19.

a Department of Medical Microbiology, Care and Public Health Research Institute (CAPHRI) , Maastricht University Medical Center (MUMC+) , Maastricht , The Netherlands.

Introduction: Chlamydia trachomatis (chlamydia) is the most commonly diagnosed bacterial sexually transmitted infection (STI) worldwide. The advancement of molecular techniques has made chlamydia diagnostics infinitely easier. However, molecular techniques lack the information on chlamydia viability. Read More

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August 2018
5 Reads

Members of the Arabidopsis FORKED1-LIKE gene family act to localize PIN1 in developing veins.

J Exp Bot 2018 Sep;69(20):4773-4790

Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada.

The reticulate leaf vein pattern typical of angiosperms is proposed to have been a driving force for their evolutionary success. Vein pattern is established through auxin canalization via the auxin efflux protein PINFORMED1 (PIN1). During formation of vein loops, PIN1 cellular localization is increasingly restricted to either the basal side of cells in the lower domain or to the apical side in the upper domain. Read More

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September 2018

Prevascularization promotes endogenous cell-mediated angiogenesis by upregulating the expression of fibrinogen and connective tissue growth factor in tissue-engineered bone grafts.

Stem Cell Res Ther 2018 Jul 4;9(1):176. Epub 2018 Jul 4.

Institute of Orthopedic Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, People's Republic of China.

Background: Vascularization is one of the most important processes in tissue-engineered bone graft (TEBG)-mediated regeneration of large segmental bone defects. We previously showed that prevascularization of TEBGs promoted capillary vessel formation within the defected site and accelerated new bone formation. However, the precise mechanisms and contribution of endogenous cells were not explored. Read More

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July 2018
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A study on food-medicine continuum among the non-institutionally trained siddha practitioners of Tiruvallur district, Tamil Nadu, India.

J Ethnobiol Ethnomed 2018 Jun 28;14(1):45. Epub 2018 Jun 28.

Addiriyah Chair for Environmental Studies, College of Science, King Saud University, 2455, Riyadh, 11451, Saudi Arabia.

Background: Medicinal properties of the food species are one of the poorly documented and important areas of ethnopharmacology. The present survey quantitatively documented the medicinal foods prescribed by the non-institutionally trained siddha practitioners of Tiruvallur district of Tamil Nadu.

Methods: Field work was carried out between December 2014 and April 2017 using a questionnaire. Read More

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June 2018
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Identification of Medicinally Used Flora Using Pollen Features Imaged in the Scanning Electron Microscopy in the Lower Margalla Hills Islamabad Pakistan.

Microsc Microanal 2018 06;24(3):292-299

2Department of Plant Sciences,Quaid-i-Azam University,Islamabad 45320,Pakistan.

The present study planned to assess the medicinally important plants in the lower Margalla Hills of Islamabad, Pakistan using scanning electron microscopy of their pollens. Both quantitative and qualitative characters of the pollens were analyzed. The shapes of the pollen were prolate, spheroidal, elliptical, and oblate. Read More

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June 2018
6 Reads

Inference of species phylogenies from bi-allelic markers using pseudo-likelihood.

Bioinformatics 2018 Jul;34(13):i376-i385

Department of Computer Science, Rice University, Houston, TX, USA.

Motivation: Phylogenetic networks represent reticulate evolutionary histories. Statistical methods for their inference under the multispecies coalescent have recently been developed. A particularly powerful approach uses data that consist of bi-allelic markers (e. Read More

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Exploring the Tiers of Rooted Phylogenetic Network Space Using Tail Moves.

Bull Math Biol 2018 Aug 14;80(8):2177-2208. Epub 2018 Jun 14.

Institut des Sciences de l'Evolution, CNRS, IRD, EPHE, Université de Montpellier, Place Eugène Bataillon, Montpellier, France.

Popular methods for exploring the space of rooted phylogenetic trees use rearrangement moves such as rooted Nearest Neighbour Interchange (rNNI) and rooted Subtree Prune and Regraft (rSPR). Recently, these moves were generalized to rooted phylogenetic networks, which are a more suitable representation of reticulate evolutionary histories, and it was shown that any two rooted phylogenetic networks of the same complexity are connected by a sequence of either rSPR or rNNI moves. Here, we show that this is possible using only tail moves, which are a restricted version of rSPR moves on networks that are more closely related to rSPR moves on trees. Read More

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August 2018
18 Reads

The use of chloroplast genome sequences to solve phylogenetic incongruences in Hook (Orchidaceae Juss).

PeerJ 2018 15;6:e4916. Epub 2018 Jun 15.

Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden.

Background: Current evidence suggests that for more robust estimates of species tree and divergence times, several unlinked genes are required. However, most phylogenetic trees for non-model organisms are based on single sequences or just a few regions, using traditional sequencing methods. Techniques for massive parallel sequencing or next generation sequencing (NGS) are an alternative to traditional methods that allow access to hundreds of DNA regions. Read More

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Developmental Biology and Induction of Phi Thickenings by Abiotic Stress in Roots of the Brassicaceae.

Plants (Basel) 2018 Jun 19;7(2). Epub 2018 Jun 19.

School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.

Phi thickenings are specialized bands of secondary wall deposited around radial walls of root cortical cells. These structures have been reported in various species from the Brassicaceae, including , where previous reports using hydroponics indicated that they can be induced by exposure to salt. Using roots grown on agar plates, we show that both salt and sucrose can induce the formation of phi thickenings in a diverse range of species within the Brassicaceae. Read More

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Protein and DNA synthesis demonstrated in cell-free Ehrlichia chaffeensis organisms in axenic medium.

Sci Rep 2018 Jun 18;8(1):9293. Epub 2018 Jun 18.

Center of Excellence for Vector-Borne Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, 66506, USA.

Ehrlichia chaffeensis, a tick-transmitted rickettsial bacterium, is the causative agent of human monocytic ehrlichiosis. Biochemical characterization of this and other related Rickettsiales remains a major challenge, as they require a host cell for their replication. We investigated the use of an axenic medium for E. Read More

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June 2018
4 Reads