Regenerative endodontic procedures (REPs) are a new option for the treatment of dental pulp or periapical diseases in permanent teeth with open apices. Histologically, tissues formed root canal after REPs mainly cementum- bone-like mineralised tissues, but not real dentine-pulp complex. Therefore, how to promote complex regeneration and improve clinical effects has become prominent research topic. Stem cells from apical papilla (SCAP) derived that can differentiate into primary odontoblasts...

Mesenchymal stem cells (MSCs) are multifunctional that exist in almost all human tissues. In addition to their self-renewal and multidirectional differentiation potential, they also have valuable immunomodulatory abilities. Bone marrow mesenchymal (BMMSCs) the first discovered MSCs most widely studied. Stem from apical papilla (SCAP) derived of incompletely developed teeth play an important role formation development tooth root. Recent studies shown cell-derived exosomes (MSC-exo) similar...

Abstract Background Reconstruction of complex critical-size defects (CSD) in the craniofacial region is a major challenge, and soft tissue regeneration crucial determining therapeutic outcomes CSD. Stem cells from apical papilla (SCAP) are neural crest-derived mesenchymal stem (MSCs) that homologous to represent promising source for regeneration. Exosomes, which contain compound bioactive compounds, key factors cell paracrine action. However, roles exosomes derived SCAP (SCAP-Exo) not fully...

The subtribe Aeridinae, which contains approximately 90 genera, is one of the most diverse and taxonomically puzzling groups in Orchidaceae. In present study, phylogenetic relationships Aeridinae were reconstructed utilizing five DNA sequences (ITS, atpI-H, matK, psbA-trnH, trnL-F) from 211 taxa 74 genera. results analyses indicate that monophyletic can primarily be grouped into 10 clades: (1) Saccolabium clade, (2) Chiloschista (3) Phalaenopsis (4) Thrixspermum (5) Vanda (6) Aerides (7)...

To evaluate the effects of exosomes derived from stem cells apical papilla (SCAP-Exos) in rats with experimentally induced pulpitis and SCAP-Exos on conversion regulatory T (Tregs) methylation status Foxp3 locus Tregs vitro.SCAP-Exos were isolated identified using transmission electron microscopy, western blotting, nanoparticle tracking analysis. Lipopolysaccharide was used to rats, detected haematoxylin-eosin staining immunofluorescence staining. CD4+ CD25- treated different doses...

Abstract To understand vegetation development during the ecological succession of rehabilitated quarries, floristic composition and structure were evaluated at different restoration phases on three quarries in Hong Kong that planted with exotic woody species over course 2–14 years. A total 113 species, which 82 recorded. Exotic dominated overstory, number, richness, diversity increased age. Some light‐demanding early successional becoming dominant overstory older revegetation. These could be...

A preliminary phylogeny of Fordiophyton (Melastomataceae) and the description two new taxa, F. chenii huizhouense, from southern China, are presented here. The phylogenetic analyses indicate that is monophyletic species in this clade Sonerileae. morphologically similar to cordifolium. Both taxa have glabrous stems, large, cordate leaves four-sided petioles, but has a very short stem, rosette leaves, hypanthia with dense glandular trichomes, shorter stamens yellow anthers. huizhouense shares...

Abstract A novel continuous subcritical n ‐butane extraction technique for Camellia seed oil was explored. The fatty acid composition, physicochemical properties, and benzo[a]pyrene content of extracted using this were analyzed. Orthogonal experiment design (L 9 (3 4 )) adopted to optimize conditions. At a temperature 45 °C, pressure 0.5 MPa, time 50 min bulk density 0.7 kg/L, an yield 99.12 ± 0.20 % obtained. major components are oleic (73.12 0.40 %), palmitic (10.38 0.05 linoleic (9.15...

Loropetalum subcordatum is an endangered species endemic to China that characterized by narrow distribution, small population size, and delayed fertilization. However, the genetic diversity of entire extant natural ex situ populations has not been assessed date. In this study, we evaluated structure six a single (the only known L. subcordatum) using sequence-related amplified polymorphism data. total, 553 reliable DNA bands, which 359 (63.28%) were polymorphic, polymerase chain reaction with...

Hoya baishaensis S.Y. He & P.T. Li sp. nova (Apocynaceae) from Hainan, China is described and illustrated. The morphological characteristics of H. the fairly similar griffithii radicalis are compared. differs in its leaf shape, pedicel, calyx corolla color.

Hemiboea sinovietnamica W. B. Xu & X. Y. Zhuang, a new species of Gesneriaceae from limestone area along the boundary Sino‐Vietnam, is described and illustrated. The similar to H. longgangensis Z. Li with its yellowish corolla, but differs in having leaf blades glabrous on both sides, involucre trigonous, 2–3 cm diameter, outside, cymes, white calyx that pistil capsule.

Leaf is one of the most important organs plant. contour or outline, usually a closed curve, fundamental morphological feature leaf in botanical research. In this paper, novel shape descriptor based on periodic wavelet series and presented, which we name as Periodic Wavelet Descriptor (PWD). The PWD actually expresses vector form. Consequently, has wide range practical applications, such modeling, plant species identification classification, etc. work, reconstruction, two are discussed to...

Based on morphological and molecular data, a new species of Gesneriaceae, Primulina yingdeensis, from Guangdong, China, is described illustrated. It morphologically most similar to P. hochiensis var. rosulata, but the three taxa differ each other in discrete characters. They share yellow honey guides, these are strongly ridged with glands. At same time, also based rosulata raised rank species, as rosulata.Citation: Ning Z.-L., Pan B., Wen F., Kang M. & Zhuang X.-Y. 2016: combination...

Abstract Background/Aim The viability of periodontal ligament cells on the root surface is a major factor that influences healing replanted teeth. A suitable storage medium necessary to preserve avulsed teeth before replantation. Conditioned from placenta‐derived mesenchymal stem (PMSC‐CM) contains variety growth factors. aim this study was evaluate effectiveness PMSC‐CM as maintain cell Material and Methods Extracted premolars healthy humans were randomly stored in Hank's balanced salt...

This study aimed to depict the mineral deposition on cellulose extracted from mineral-rich Lycium barbarum L. leaves by basic base/acid treatment. Alkali treatment made fluffy, and leaf phytoliths changed liquid silicon, depositing onto fluffy in crystalline forms, with content (mainly Si, Ca, Al) reaching 9.41% after 24-h alkali Acid decreased deposited minerals affecting crystallinity. Sulfuric acid (SA) mainly eroded cellulosic amorphous zone attached minerals, crystallized quartz-SiO2)...

Anesthesia may induce neuronal tau phosphorylation and neurotoxicity in the developing brain. Apolipoprotein E (ApoE) play a protective role activity injury repair, whereas its 18-kDa fragments are reported to neurodegeneration neuroinflammation Alzheimer's disease patients. We aimed test hypothesis that differences ApoE fragment levels, but not full-length ApoE, primary neurons contribute with or without sevoflurane administration. Neurons extracted from wild-type (WT), knockout (ApoE-KO),...