scholarly journals Wound wood formation in Eucalyptus globulus and Eucalyptus nitens: anatomy and chemistry

2003 ◽  
Vol 33 (12) ◽  
pp. 2331-2339 ◽  
Author(s):  
Alieta Eyles ◽  
Noel W Davies ◽  
Caroline Mohammed
Keyword(s):  
Eucalyptus Globulus ◽  
Wound Repair ◽  
Wood Formation ◽  
Negative Ion ◽  
Eucalyptus Nitens ◽  
Diverse Range ◽  
Wound Site ◽  
Formylated Phloroglucinol Compounds ◽  
Wood Extracts ◽  
Volatile Terpenes

The wound-associated wood that developed 17 months following artificial xylem injury in Eucalyptus globulus (Labill) and Eucalyptus nitens (Maiden) was examined anatomically and chemically. This new tissue located immediately adjacent to the wound site and termed "wound wood" was highly variable consisting of callus, altered wood of increased parenchyma density, and dark extractives, visible to the naked eye. Subsequent chemical analysis of crude wound wood extracts by HPLC coupled to negative ion electrospray mass spectrometry revealed the presence of a diverse range of polyphenolic compounds including hydrolysable tannins, proanthocyanidins, flavanone glycosides, and formylated phloroglucinol compounds. A number of polyphenols were unequivocally identified including engelitin, pedunculagin, and tellimagrandin I. Other compounds present in wound wood include various hydroxystilbene glycosides and volatile terpenes. The importance of the diverse range of secondary metabolites detected in wound wood is discussed in relation to tree wound repair responses.

Histological response to injury in the horseshoe crab, Limulus polyphemus

1977 ◽  
Vol 55 (7) ◽  
pp. 1158-1165 ◽  
Author(s):  
Charles R. Bursey
Keyword(s):  
Epithelial Cells ◽  
Wound Repair ◽  
Horseshoe Crab ◽  
Thick Layer ◽  
Repair Process ◽  
Limulus Polyphemus ◽  
Tissue Structure ◽  
Histological Response ◽  
Wound Site

Observations are presented on the wound repair process of the horseshoe crab, Limulus polyphemus. A cut, 1 × 40 × 3 mm, was made through the dorsal abdominal carapace and observations of the tissue at the wound site were made at 6, 24, 48, 96 h and 5, 10, 15, 30, 60, 90, 120, and 180 days. The wound was immediately plugged by a hemolymph coagulum and there was heavy infiltration of hemocytes into the area. Infiltrating hemocytes undergo a series of changes. The outermost cells hyalinize and form a thick layer between the cut ends of the exoskeleton. Pigmented epithelial cells migrate into the scar and produce a layer of cuticle under the cut exoskeleton. During the remaining period of observation, the cuticular scab enlarged and the cellular mass that filled the wound channel was lost through a series of changes that eventually restored the original tissue structure.

Overexpression of an SKn-dehydrin gene from Eucalyptus globulus and Eucalyptus nitens enhances tolerance to freezing stress in Arabidopsis

Trees ◽  
2016 ◽  
Vol 30 (5) ◽  
pp. 1785-1797 ◽  
Author(s):  
Paula Aguayo ◽  
Javiera Sanhueza ◽  
Felipe Noriega ◽  
Margaret Ochoa ◽  
Regis Lefeuvre ◽  
...  
Keyword(s):  
Eucalyptus Globulus ◽  
Freezing Stress ◽  
Eucalyptus Nitens ◽  
Dehydrin Gene

scholarly journals Anti-inflammatory effects of topical lactobacillus acidophilus and antibiotic in wound repair on the basis of microscopic parameters: a comparative study in rats

2019 ◽  
Vol 7 (8) ◽  
pp. 3044
Author(s):  
Hina Khan ◽  
Asad R. Jiskani ◽  
Devi Kumari ◽  
Muhammad Rafique ◽  
Fouzia Kirmani ◽  
...  
Keyword(s):  
Comparative Study ◽  
Lactobacillus Acidophilus ◽  
Wound Repair ◽  
Common Factor ◽  
Wound Management ◽  
Wound Site ◽  
Anti Inflammatory ◽  
Post Hoc ◽  
One Way Anova

Background: Wound treatment still a task for medical professionals, according to the time advancement. We need to elaborate further new interventions to cope up this common factor of community. The objective of the study was to assess the anti-inflammatory topical role of Lactobacillus acidophilus with antibiotic in wound repair of rats based on of microscopic parameters. This comparative study was conducted in the Department of Anatomy Al-Tibri Medical Collage and Hospital Isra University Karachi Campus from December 2018 to April 2019.Methods: Total 18 male of wistar rats were randomly selected for this study. The study comprised of three topical groups Control, Antibiotic and Lactobacillus acidophilus groups respectively.Results: The samples were taken from the wound site for the preparation of microscopic slides, to count the numbers of neutrophils, lymphocytes and macrophages for the evaluation of anti-inflammatory process in both groups on day 3 and 7. Data obtained were analyzed by SPSS version 20 by applying One Way ANOVA and post hoc Tukey’s test.Conclusions: The results were shown potent anti-inflammatory effects of Lactobacillus acidophilus group in comparison with other conventional therapy. The study concludes that the topical application of Lactobacillus acidophilus had remarkable anti-inflammatory effects in wound management.

scholarly journals Informe Técnico 148: Modelo de crecimiento para eucalipto en Chile. (Avances de investigación)

2000 ◽  
Author(s):  
Carlos Bahamóndez V. ◽  
◽  
Mauro Ernesto Ferrando Toso ◽  
Marjorie Caroline Martin Stuven ◽  
Juan Carlos Pinilla Suárez
Keyword(s):  
Eucalyptus Globulus ◽  
Eucalyptus Nitens

Documento que contiene el trabajo desarrollado por Infor en la actualización y escalamiento de las funciones que componen el modelo de crecimiento para eucalipto: crecimiento en altura, mortalidad natural, rendimiento en área basal y predicción del volumen; utilizando la información generada a través de los proyectos desarrollados por Infor y Fundación Chile. Además, se describen los antecedentes utilizados para generar dichas funciones. especie) con los de versiones anteriores (EUCA2.1). Finalmente, se hace hincapié en la necersidad de mantener actualizadas las bases de datos para realizar nuevos escalamientos. En t érminos de distribucion de edades, prácticamente toda la información se concentra entre los 2-12 años para Eucalyptus globulus y 2-7 años para Eucalyptus nitens.

scholarly journals MSC-Derived Exosome Promotes M2 Polarization and Enhances Cutaneous Wound Healing

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Xiaoning He ◽  
Zhiwei Dong ◽  
Yina Cao ◽  
Han Wang ◽  
Shiyu Liu ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Wound Healing ◽  
Wound Repair ◽  
Macrophage Polarization ◽  
Therapeutic Effects ◽  
Cutaneous Wound Healing ◽  
Bone Marrow Mscs ◽  
Wound Site ◽  
Cutaneous Wound ◽  
M2 Polarization

Mesenchymal stem cell transplantation (MSCT) promotes cutaneous wound healing. Numerous studies have shown that the therapeutic effects of MSCT appear to be mediated by paracrine signaling. However, the cell-cell interaction during MSCT between MSCs and macrophages in the region of cutaneous wound healing is still unknown. In this study, early depletion of macrophages delayed the wound repair with MSC injection, which suggested that MSC-mediated wound healing required macrophages. Moreover, we demonstrated that systemically infused bone marrow MSCs (BMMSCs) and jaw bone marrow MSCs (JMMSCs) could translocate to the wound site, promote macrophages toward M2 polarization, and enhance wound healing.In vitrococulture of MSCs with macrophages enhanced their M2 polarization. Mechanistically, we found that exosomes derived from MSCs induced macrophage polarization and depletion of exosomes of MSCs reduced the M2 phenotype of macrophages. Infusing MSCs without exosomes led to lower number of M2 macrophages at the wound site along with delayed wound repair. We further showed that the miR-223, derived from exosomes of MSCs, regulated macrophage polarization by targeting pknox1. These findings provided the evidence that MSCT elicits M2 polarization of macrophages and may accelerate wound healing by transferring exosome-derived microRNA.

Energy evaluation of the Eucalyptus globulus and the Eucalyptus nitens in the north of Spain (Cantabria)

2006 ◽  
Vol 451 (1-2) ◽  
pp. 57-64 ◽  
Author(s):  
S. Pérez ◽  
C.J. Renedo ◽  
A. Ortiz ◽  
M. Mañana ◽  
D. Silió
Keyword(s):  
Eucalyptus Globulus ◽  
Eucalyptus Nitens ◽  
The North ◽  
Energy Evaluation ◽  
North Of Spain
Sign in / Sign up

Export Citation Format

Share Document