Analysis of the Antitumor Activity of Bioactive Compounds of Cannabis Flowers Extracted by Green Solvents

Publication date: Available online 21 March 2019Source: The Journal of Supercritical FluidsAuthor(s): Daniel Ribeiro Grijó, Danielle Lazarin Bidoia, Celso Vataru Nakamura, Ignacio Vieitez Osorio, Lúcio Cardozo-FilhoAbstractThe inhibitory effects of Cannabis flower extracts, obtained by supercritical carbon dioxide (scCO2) with and without modifier, on various human tumour cells and non-tumour cells were evaluated. Different techniques were used to optimize the polarity interaction between solute and solvent before extraction. An increase in the cannabinoid content of interest (CBD/THC) was evaluated by decarboxylation of the flowers at 110 and 140 °C. Extractions with pure scCO2 were conducted in a single step at temperatures of 50 and 70 °C and pressures of 22 and 40 MPa, varying the time of prior decarboxylation by 0.5 or 2.0 hours. Sequential extractions were conducted in a first step at 35 °C and 10 MPa and then in a second step at 70 °C and 40 MPa, with and without modifier. Contents of the cannabinoids were evaluated using HPLC. Antitumor activity of the extracts was evaluated using the MTT assay. The highest yields and highest cannabinoid contents in the extracts were obtained with high solvent density values. Extracts with high concentrations of neutral cannabinoids showed high antitumor activity for cervical cancer cell lines.Graphical Abstract
Source: The Journal of Supercritical Fluids - Category: Chemistry Source Type: research

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Publication date: Available online 23 April 2019Source: Saudi Journal of Biological SciencesAuthor(s): Mohsen Keshavarz, Amir Sasan Mozaffari Nejad, Maryam Esghaei, Farah Bokharaei-Salim, Hassan Dianat-Moghadam, Hossein Keyvani, Amir GhaemiAbstractAlthough Oncolytic viruses have been regarded as a promising tool for targeted therapy of cancer, accomplishing high efficacy and specificity with this strategy is challenging. Oncolytic virotherapy is one of the novel therapeutic methods recently used for the therapy of human malignancies. Cervical cancer is on the major public health problem and the second most common cause of ...
Source: Saudi Journal of Biological Sciences - Category: Biology Source Type: research
In this study, we firstly tested the effects of QJSB on leucopenia using mice induced by cyclophosphamide. Our results suggested that QJSB significantly raised the number of peripheral white blood cells, platelets and nucleated bone marrow cells. Additionally, it markedly enhanced the cell viability and promoted the colony formation of bone marrow mononuclear cells. Furthermore, it reversed the serum cytokines IL-6 and G-CSF disorders. Then, using transcriptomics datasets and metabonomic datasets, we integrated transcriptomics-based network pharmacology and metabolomics technologies to investigate the mechanism of action o...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
Qingbin Cui1,2, Chao-Yun Cai2, Hai-Ling Gao2,3, Liang Ren1, Ning Ji2,4, Pranav Gupta2, Yuqi Yang2, Suneet Shukla5, Suresh V. Ambudkar5, Dong-Hua Yang2 and Zhe-Sheng Chen2* 1School of Public Health, Guangzhou Medical University, Guangdong, China 2Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, United States 3Department of Histology and Embryology, Clinical Medical College, Weifang Medical University, Weifang, China 4Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tian...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Conclusion: Fat fraction on MRI corresponded to fat content on histology and therefore contributes to lesion characterization. Measurement repeatability was excellent for ADC; this parameter increased significantly post-radiotherapy even in disease categorized as stable by size criteria, and corresponded to cellularity on histology. ADC can be utilized for characterizing and assessing response in heterogeneous retroperitoneal sarcomas. Introduction Soft-tissue sarcomas are often highly heterogeneous tumors with variable components that can include cellular tumor, fat, necrosis, and cystic change. In many soft-tissue ...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Publication date: Available online 24 April 2019Source: Gynecologic Oncology ReportsAuthor(s): Brooke Liang, Sara S. Lange, L. Stewart Massad, Rebecca Dick, Kathryn A. Mills, Andrea R. Hagemann, Carolyn K. McCourt, Premal H. Thaker, Katherine C. Fuh, David G. Mutch, Matthew A. Powell, Lindsay M. KurokiAbstractObjectiveTo assess the renal outcomes of gynecologic oncology patients who present with hydronephrosis and acute kidney injury (AKI), have
Source: Gynecologic Oncology Reports - Category: OBGYN Source Type: research
CONCLUSION: This is the largest single-centre Canadian series of invasive AC. Stage is the strongest prognostic factor in multivariate analysis; in contrast to other studies, lymph node status was not a significant determinant. PMID: 31006541 [PubMed - as supplied by publisher]
Source: Journal of Obstetrics and Gynaecology Canada : JOGC - Category: OBGYN Tags: J Obstet Gynaecol Can Source Type: research
Title: Not All Cervical Cancer Rates Are DecliningCategory: Health NewsCreated: 4/23/2019 12:00:00 AMLast Editorial Review: 4/24/2019 12:00:00 AM
Source: MedicineNet Cancer General - Category: Cancer & Oncology Source Type: news
The objective of this study was to investigate socio-demogr...
Source: BMC Public Health - Category: Consumer Health News Authors: Tags: Research article Source Type: research
Yi-Cheng Gao, Xiong-Hui Zhou* and Wen Zhang* Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, China Due to the high heterogeneity and complexity of cancer, it is still a challenge to predict the prognosis of cancer patients. In this work, we used a clustering algorithm to divide patients into different subtypes in order to reduce the heterogeneity of the cancer patients in each subtype. Based on the hypothesis that the gene co-expression network may reveal relationships among genes, some communities in the network could influence the prognosis o...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
Conclusion In conclusion, this study wants to stress the importance of early diagnosis. As in the majority of primary immunodeficiency diseases, the prognosis of LAD3 is extremely dependent on early age diagnosis, with timely management of bacterial infections and consideration for HSCT. In addition, this autosomal recessive disorder has high incidence in areas with high rate of consanguineous marriages. Therefore, broadening the spectrum of known mutations underlying the phenotype of such a life-threatening disease can help offering and performing better genetic counseling and prenatal diagnosis. Ethics Statement This ...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
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