scholarly journals Cancer Stem Cell Biomarkers Predictive of Radiotherapy Response in Rectal Cancer: A Systematic Review

Genes ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1502
Author(s):  
Marzia Mare ◽  
Lorenzo Colarossi ◽  
Veronica Veschi ◽  
Alice Turdo ◽  
Dario Giuffrida ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
In Vivo Studies ◽  
Tumour Control ◽  
Scientific Databases ◽  
Local Tumour Control ◽  
Close Proximity ◽  
Current Scenario ◽  
Local Tumour

Background: Rectal cancer (RC) is one of the most commonly diagnosed and particularly challenging tumours to treat due to its location in the pelvis and close proximity to critical genitourinary organs. Radiotherapy (RT) is recognised as a key component of therapeutic strategy to treat RC, promoting the downsizing and downstaging of large RCs in neoadjuvant settings, although its therapeutic effect is limited due to radioresistance. Evidence from experimental and clinical studies indicates that the likelihood of achieving local tumour control by RT depends on the complete eradication of cancer stem cells (CSC), a minority subset of tumour cells with stemness properties. Methods: A systematic literature review was conducted by querying two scientific databases (Pubmed and Scopus). The search was restricted to papers published from 2009 to 2021. Results: After assessing the quality and the risk of bias, a total of 11 studies were selected as they mainly focused on biomarkers predictive of RT-response in CSCs isolated from patients affected by RC. Specifically these studies showed that elevated levels of CD133, CD44, ALDH1, Lgr5 and G9a are associated with RT-resistance and poor prognosis. Conclusions: This review aimed to provide an overview of the current scenario of in vitro and in vivo studies evaluating the biomarkers predictive of RT-response in CSCs derived from RC patients.

scholarly journals Essential Oils as Treatment Strategy for Alzheimerʼs Disease: Current and Future Perspectives

Planta Medica ◽  
2018 ◽  
Vol 85 (03) ◽  
pp. 239-248 ◽  
Author(s):  
Anju Benny ◽  
Jaya Thomas
Keyword(s):  
Essential Oils ◽  
Clinical Studies ◽  
Symptomatic Relief ◽  
Memory Loss ◽  
Clinical Trial Data ◽  
In Vivo Studies ◽  
Scientific Databases ◽  
Preclinical And Clinical Studies

AbstractAlzheimerʼs disease is a multifarious neurodegenerative disease that causes cognitive impairment and gradual memory loss. Several hypotheses have been put forward to postulate its pathophysiology. Currently, few drugs are available for the management of Alzheimerʼs disease and the treatment provides only symptomatic relief. Our aim is to review the relevant in vitro, in vivo, and clinical studies focused toward the potential uses of essential oils in the treatment of Alzheimerʼs disease. Scientific databases such as PubMed, ScienceDirect, Scopus, and Google Scholar from April 1998 to June 2018 were explored to collect data. We have conducted wide search on various essential oils used in different models of Alzheimerʼs disease. Out of 55 essential oils identified for Alzheimerʼs intervention, 28 have been included in the present review. A short description of in vivo studies of 13 essential oils together with clinical trial data of Salvia officinalis, Salvia lavandulifolia, Melissa officinalis, Lavandula angustifolia, and Rosmarinus officinalis have been highlighted. In vitro studies of remaining essential oils that possess antioxidant and anticholinesterase potential are also mentioned. Our literary survey revealed encouraging results regarding the various essential oils being studied in preclinical and clinical studies of Alzheimerʼs disease with significant effects in modulating the pathology through anti-amyloid, antioxidants, anticholinesterase, and memory-enhancement activity.

An Insight into the Discovery of Potent Antifilarial Leads Against Lymphatic Filariasis

2020 ◽  
Vol 21 (7) ◽  
pp. 657-680
Author(s):  
Pone Kamdem Boniface ◽  
Ferreira Igne Elizabeth
Keyword(s):  
Lymphatic Filariasis ◽  
In Vivo Studies ◽  
Protein Targets ◽  
Scientific Databases ◽  
Naturally Occurring ◽  
In Silico Studies ◽  
Antifilarial Activity ◽  
Insight Into

Background and Objectives: Lymphatic filariasis is a neglected tropical disease caused by infection with filarial worms that are transmitted through mosquito bites. Globally, 120 million people are infected, with nearly 40 million people disfigured and disabled by complications such as severe swelling of the legs (elephantiasis) or scrotum (hydrocele). Current treatments (ivermectin, diethylcarbamazine) have limited effects on adult parasites and produce side effects; therefore, there is an urgent to search for new antifilarial agents. Numerous studies on the antifilarial activity of pure molecules have been reported accross the recent literature. The present study describes the current standings of potent antifilarial compounds against lymphatic filariasis. Methods: A literature search was conducted for naturally occurring and synthetic antifilarial compounds by referencing textbooks and scientific databases (SciFinder, PubMed, Science Direct, Wiley, ACS, SciELO, Google Scholar, and Springer, among others) from their inception until September 2019. Results: Numerous compounds have been reported to exhibit antifilarial acitivity in adult and microfilariae forms of the parasites responsible for lymphatic filariasis. In silico studies of active antifilarial compounds (ligands) showed molecular interactions over the protein targets (trehalose-6-phosphate phosphatase, thymidylate synthase, among others) of lymphatic filariasis, and supported the in vitro results. Conclusion: With reference to in vitro antifilarial studies, there is evidence that natural and synthetic products can serve as basic scaffolds for the development of antifilarial agents. The optimization of the most potent antifilarial compounds can be further performed, followed by their in vivo studies.

Combined treatment of the immunoconjugate bivatuzumab mertansine and fractionated irradiation improves local tumour control in vivo

2012 ◽  
Vol 102 (3) ◽  
pp. 444-449 ◽  
Author(s):  
Kristin Gurtner ◽  
Franziska Hessel ◽  
Wolfgang Eicheler ◽  
Annegret Dörfler ◽  
Daniel Zips ◽  
...  
Keyword(s):  
Combined Treatment ◽  
Fractionated Irradiation ◽  
Tumour Control ◽  
Local Tumour Control ◽  
Local Tumour

Acanthospermum hispidum DC: An Updated Review on Phytochemistry and Biological Activities

2021 ◽  
Vol 21 ◽  
Author(s):  
Ewelyn Cintya Felipe dos Santos ◽  
Janaina Carla Barbosa Machado ◽  
Magda Rhayanny Assunção Ferreira ◽  
Luiz Alberto Lira Soares
Keyword(s):  
Medicinal Plant ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Biological Properties ◽  
In Vivo Studies ◽  
Future Research ◽  
Scientific Databases ◽  
Bibliographic Search

Background: Acanthospermum hispidum DC is a medicinal plant present in America, Africa, Australia, India, Hawaii, and Brazil. In Brazil, the species is used in the treatment of gastrointestinal, respiratory disorders and has expectorant action. In the literature there are studies on the chemical composition of the species, with reports of the presence of alkaloids, flavonoids, hydrolyzable tannins, terpenes, and steroids. In addition, several studies have reported in vitro and in vivo studies that prove the biological properties of extracts and compounds isolated from different organs of the A. hispidum plant, including: hepatoprotectors, antioxidants, antimicrobials and antiparasitic. Objective: The objective of this review is to update the knowledge about the phytochemical, pharmacological and toxicity aspects of A. hispidum, to contribute to the recognition of the species and direct new studies. Methods: An extensive bibliographic search was conducted in different scientific databases. Results: The presence of different chemical constituents in A. hispidum have been identified, among them flavonoids, tannins, terpenes, and steroids. Additionally, antimicrobial and antiparasitic activities were mainly attributed to the species, and other activities not previously described were presented, such as anticholinesterase, antioxidant, hepatoprotective, and hypoglycemic, all based on results of in vitro and in vivo studies. Finally, no reports of toxic effects were found in the in vitro and in vivo tests. After analyzing the articles, it was evidenced that other experiments, with different models using animals, are essential to evaluate the possible mechanisms of action of the extracts and compounds isolated of A. hispidum. Conclusion: Therefore, this review may contribute to the recognition of the importance of A. hispidum and its potential as a medicinal plant and may also guide the conduct of future research regarding the constituents, biological activities, and toxicity of the species.

scholarly journals Lepidium sativum: A potential functional food

2021 ◽  
Vol 7 (2) ◽  
pp. 140-149
Author(s):  
Mamta B. Shah ◽  
◽  
Vinisha A. Dudhat ◽  
Krupa V. Gadhvi ◽  
◽  
...  
Keyword(s):  
Chemical Constituents ◽  
In Vivo Studies ◽  
Lepidium Sativum ◽  
Pharmacological Activities ◽  
Scientific Databases ◽  
Pharmacological Studies ◽  
Pharmacology And Toxicology ◽  
Physicochemical Characterisation

Lepidium sativum Linn. (family Cruciferae) is an edible herb that is botanically related to watercress and mustard, having their peppery, tangy taste and odour. Traditionally L. sativum seeds are used to treat wounds, sprains, asthma, bronchitis, cough and is considered useful as abortifacient, aphrodisiac, antibacterial, diuretic, expectorant, gastrointestinal stimulant, gastroprotective, laxative and stomachic. Many of these traditional uses have been scientifically validated using different in vitro and in vivo studies and in this review are compiled in an inclusive manner. Seeds are reported to be rich in carbohydrates, vitamins, amino acids, proteins, triterpenoids, steroids and saponin glycosides possessing different pharmacological activities. Aim of the study: This study is an effort to collate complete scientific literature published till March 2021 in order to generate a succinct summation on the distribution, traditional beneficial potential, chemical constituents, phytochemistry, pharmacology and toxicology of this coveted species of genus Lepidium. Materials and Methods: Exploring assorted scientific databases. Results: The present methodically compiled review article accentuates medicinal and nutritional significance of this highly valued plant by focusing on various aspects of the plant such as the, physicochemical characterisation and pharmacological studies that validates folklore uses. Thus, this annotated script on L. sativum would be a handy tool to explore the future prospective of research on this traditional plant.

In vitro and in vivo studies of new cationic Zn(II)‐benzonaphthoporphyrazines as photosensitizers for PDT

2001 ◽  
Vol 5 (8) ◽  
pp. 645-651
Author(s):  
M. Peeva ◽  
M. Shopova ◽  
U. Michelsen ◽  
D. Wöhrle ◽  
G. Petrov ◽  
...  
Keyword(s):  
In Vivo Studies
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