scholarly journals Identification of phytosterins in Urtica dioica L. (overground part)

2017 ◽  
Vol 0 (1) ◽  
Author(s):  
G. P. Smoylovska
Keyword(s):  
Urtica Dioica ◽  
Overground Part

Silica Incorporation in the Cell Wall of the Singing Cell of Urtica dioica

1975 ◽  
Vol 33 ◽  
pp. 584-585
Author(s):  
A. E. Sowers ◽  
E. L. Thurston
Keyword(s):  
Cell Wall ◽  
Unique Feature ◽  
Urtica Dioica ◽  
Wall Material ◽  
Pain Response ◽  
Apical Portion ◽  
Ultrastructural Investigation ◽  
Plant Families ◽  
Bulbous Tip

Plant stinging emergences exhibit functional similarities in that they all elicit a pain response upon contact. A stinging emergence consists of an elongated stinging cell and a multicellular pedestal (Fig. 1). A recent ultrastructural investigation of these structures has revealed the ontogeny and morphology of the stinging cells differs in representative genera in the four plant families which possess such structures. A unique feature of the stinging cell of Urtica dioica is the presence of a siliceous cell wall in the apical portion of the cell. This rigid region of the cell wall is responsible for producing the needle-like apparatus which penetrates the skin. The stinging cell differentiates the apical bulbous tip early in development and the cell continues growth by intercalary addition of non-silicified wall material until maturity.The uppermost region of the stinging cell wall is entirely composed of silica (Fig. 2, 3) and upon etching with a 3% solution of HF (5 seconds), the silica is partially removed revealing the wall consisting of individualized silica bodies (Fig. 4, 5).

The fate of apoplastic sucrose in sink and source leaves of Urtica dioica

1992 ◽  
Vol 85 (4) ◽  
pp. 618-624 ◽  
Author(s):  
Ina Moller ◽  
Erwin Beck
Keyword(s):  
Urtica Dioica

Antioxidant potential of Arnica montana and Urtica dioica hydroalcoholic extracts on mouse fibroblasts in vitro

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
L Moldovan ◽  
O Craciunescu ◽  
L Toma ◽  
A Gaspar ◽  
D Constantin
Keyword(s):  
Urtica Dioica ◽  
Antioxidant Potential ◽  
Mouse Fibroblasts ◽  
Arnica Montana

n. 188 (16): Dor On Line

Dor on line ◽  
2016 ◽  
Author(s):  
Paulo Barboni
Keyword(s):  
Urtica Dioica ◽  
On Line

Edição de Março de 2016 - Ano 16 - Número 188   Olá, leitores! Epigenética e dor é o tema de nosso editorial desse mês. Na seção de Divulgação Científica, trazemos alertas tratando de assuntos como o uso da pupilometria na avaliação da analgesia opioide; a relação do excesso de trabalho e a lombalgia; novas propostas de analgésicos, inclusive em serviços de música on line; e mais um artigo ligado ao “Ano de Combate à Dor Articular”. Na seção de Ciência e Tecnologia, trazemos alertas tratando da inibição da via da tetrahidrobiopterina; a identificação de um fator ligado à proliferação microglial em nervos lesionados; um alvo proteico ligado ao estresse e dor crônica e um novo tipo de priming hiperalgésico. Boa Leitura!   Editorial Participação de mecanismos epigenéticos na dor crônica: uma crescente área de investigação Andreza Urba de Quadros   Divulgação Científica Movimento da pupila pode predizer redução da dor pela administração de opioides. Pupilometria auxilia no tratamento da dor. Alexandre Hashimoto Pereira Lopes Dor nas costas aumenta em pessoas viciadas em trabalho. Você é um workaholic? Se sim, cuidado! Dênis Augusto Santana Reis Analgésicos potentes para o alívio da dor. Pesquisa mostra o efeito de análogos às endomorfinas administrados para aliviar a dor. Andressa Daiane de Carvalho Zaparolli Dorflex cria 'analgésico musical'. O uso de uma terapia musical pode funcional como um tratamento complementar ao tratamento farmacológico. Dênis Augusto Santana Reis Prescrição e efeito total da utilização de analgésicos, hipnóticos, antidepressivos e ansiolíticos. Resultado proveniente de uma população total de pacientes com artroplastia no quadril. Ana Carolina Alves M. de Moura   Ciência e Tecnologia Redução da dor inflamatória e neuropática através da inibição da via da tetrahidrobiopterina (BH4). Pesquisadores desenvolveram um inibidor da via de BH4 capaz de reduzir a dor crônica sem causar tolerância e efeitos adversos. Flávia Viana Santa-Ceclília CSF-1 derivado do nervo sensorial lesionado induz proliferação microglial e dor via dependente de DAP12. Neurônios sensoriais lesionados ativam a micróglia. Miriam das Dores Mendes Fonseca Avaliação in vivo e in vitro dos efeitos da Urtica dioica e natação em fatores do diabetes. A Urtiga é utilizada como planta medicinal para o tratamento de diversas patologias. Erika Ivanna Araya Pallarés Proteína FKBP51, envolvida na resposta do organismo ao estresse, envolvida na origem da dor crônica. Proteína FKBP51 como um possível alvo terapêutico para o tratamento da dor crônica. Sabrina Francesca de Souza Lisboa Agonista do receptor adenosina-a1 induz sensibilização hiperalgésica tipo II. Modelo de cronificação da dor. Thatiane Sandielen Lima Soares

Urtica dioica in the Management of Benign Prostate Hyperplasia (BPH)

2020 ◽  
Vol 10 (5) ◽  
pp. 535-542
Author(s):  
Mohaddese Mahboubi
Keyword(s):  
Molecular Mechanisms ◽  
Life Quality ◽  
Urtica Dioica ◽  
Urinary Flow ◽  
Prostate Hyperplasia ◽  
Long Time ◽  
Tract Infections ◽  
Preclinical And Clinical Studies ◽  
Benign Prostate ◽  
Maximum Urinary Flow

Background:: Benign Prostatic hyperplasia (BPH) is known as a disease prevalent in men after the age of 50 years old. Ninety percent of men with the age of 80 years and over have BPH. BPH is associated with functional problems like dysuria, nocturia, polyuria, urinary incontinence and recurrent urinary tract infections. Urtica dioica or nettle is a popular medicinal plant for management of BPH in men. Objective:: This article evaluates the efficacy and safety of nettle and its related possible mechanisms in the management of BPH. Methods:: For the preparation of this manuscript, all the information was gathered from accessible and inaccessible resources (Web, Books, Thesis, etc.). Results:: The results of preclinical and clinical studies confirmed the efficacy of nettle roots extracts (methanol, ethanol, and petroleum ether) in the improvement of BPH in term of IPSS score, and patient's life quality. An increase in mean and maximum urinary flow rates and a reduction in prostate volume and residual urine level were observed after treatment with nettle extract. Nettle roots should be used for 6-12 months as its use is possible for a long time without any serious adverse effects. Conclusion:: Designing the clinical trials to compare the efficacy of different extracts from roots or leaves and investigation of molecular mechanisms of action could be the approaches for future.

Urtica cannabina L. Urtica dioica L. Urticaceae

2020 ◽  
pp. 1-10
Author(s):  
Wenqi Li ◽  
Bo Liu ◽  
Rainer W. Bussmann ◽  
Ketevan Batsatsashvili ◽  
Zaal Kikvidze
Keyword(s):  
Urtica Dioica

scholarly journals Assessment of Conjugate Complexes of Chitosan and Urtica dioica or Equisetum arvense Extracts for the Control of Grapevine Trunk Pathogens

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 976
Author(s):  
Natalia Langa-Lomba ◽  
Laura Buzón-Durán ◽  
Pablo Martín-Ramos ◽  
José Casanova-Gascón ◽  
Jesús Martín-Gil ◽  
...  
Keyword(s):  
Urtica Dioica ◽  
Gas Chromatography Mass Spectrometry ◽  
Equisetum Arvense ◽  
Grapevine Trunk Diseases ◽  
Trunk Diseases ◽  
Synergistic Behavior ◽  
Reported Data ◽  
Basic Substances

In the work presented herein, we analyze the efficacy of three basic substances that comply with European Regulation (EC) No 1107/2009, namely chitosan, horsetail (Equisetum arvense L.) and nettle (Urtica dioica L.), for the control of grapevine trunk diseases (GTDs) in organic farming. The E. arvense and U. dioica aqueous extracts, prepared according to SANCO/12386/2013 and SANTE/11809/2016, have been studied by gas chromatography–mass spectrometry (GC-MS), identifying their main active constituents. The three basic substances, either alone or in combination (forming conjugate complexes), have been tested in vitro against eight Botryosphaeriaceae species, and in vivo, in grafted plants artificially inoculated with Neofusicoccum parvum and Diplodia seriata. A clear synergistic behavior between chitosan and the two plant extracts has been observed in the mycelial growth inhibition tests (resulting in EC90 values as low as 208 μg·mL−1 for some of the isolates), and statistically significant differences have been found in terms of vascular necroses lengths between treated and non-treated plants, providing further evidence of aforementioned synergism in the case of D. seriata. The reported data supports the possibility of extending the applications of these three basic substances in Viticulture beyond the treatment of mildew.

Sign in / Sign up

Export Citation Format

Share Document