Deep eutectic solvents (DES) are gaining interest as eco-friendly alternatives for extracting bioactive compounds, but their environmental benefits remain unclear and need further evaluation. In this work, a case study of total polyphenols (TPC) extraction from spent coffee grounds (SCG) was environmentally evaluated using life cycle assessment (LCA). First, the most convenient extraction time (1, 10, 20, or 40 min) for water and acetone 20 % from an environmental perspective was identified.
View Article and Find Full Text PDFGiven global coffee consumption, substantial quantities of spent coffee grounds (SCGs) are generated annually as a by-product of brewing coffee. SCG, although rich in bioactive compounds, is nowadays disposed of. The objective of this study is to compare, for the first time and from the same SCG, the efficiency of ethanol-water mixtures and acetone-water mixtures for the recovery of total polyphenols, chlorogenic acid, and caffeine.
View Article and Find Full Text PDFThis study aims to provide an overview of different extraction methods to obtain chlorogenic acid (CA) and caffeine (Caf) from spent coffee grounds (SCG). This overview shows that the quantity extracted is highly dependent on the type of SCG, so experiments using the same SCG are needed to compare different methods. Three easy and simple extraction methods will be tested at a laboratory scale and environmentally compared.
View Article and Find Full Text PDFThere is an urgent need to reuse and recycle textile fibers, since today, low recycling rates are achieved. Accurate classification methods for post-consumer textile waste are needed in the short term for a higher circularity in the textile and fashion industries. This paper compares different spectroscopic data from textile samples in order to correctly classify the textile samples.
View Article and Find Full Text PDFThe textile industry is generating great environmental concerns due to the exponential growth of textile products' consumption (fast fashion) and production. The textile value chain today operates as a linear system (textile products are produced, used, and discarded), thus putting pressure on resources and creating negative environmental impacts. A new textile economy based on the principles of circular economy is needed for a more sustainable textile industry.
View Article and Find Full Text PDFMale-to-female reassignment surgery or vaginoplasty includes those surgical procedures that aim to recreate a functional and cosmetically acceptable female perineum with minimal scarring. The technique of choice at our center is penile inversion vaginoplasty with or without scrotal skin grafts. We present 4 cases diagnosed with rectoneovaginal fistulas treated at our center with favorable evolution.
View Article and Find Full Text PDFColon and rectal tumors, often referred to as colorectal cancer, show different gene expression patterns in studies that analyze whole tissue biopsies containing a mix of tumor and non-tumor cells. To better characterize colon and rectal tumors, we investigated the gene expression profile of organoids generated from endoscopic biopsies of rectal tumors and adjacent normal colon and rectum mucosa from therapy-naive rectal cancer patients. We also studied the effect of vitamin D on these organoid types.
View Article and Find Full Text PDFMultiple sclerosis (MS) is the most common disabling neurological disease among young adults. The diagnosis of this disease usually leads to uncertainty, stress, and anxiety, which in turn can lead to negative outcomes. Consequently, the development of healthy lifestyle strategies can lead to better emotional management of perceived stress.
View Article and Find Full Text PDFPlocabulin is a novel microtubule-disrupting antitumor agent of marine origin that is currently undergoing phase II clinical trials. Plocabulin has potent antiproliferative and antiangiogenic actions in carcinoma cell lines and has antitumor activity in xenografted mice. Here, we used three-dimensional (3D) tumor organoids derived from three colorectal cancer (CRC) patients to study the effect of plocabulin in a personalized assay system that ensures dose dependence and high reproducibility.
View Article and Find Full Text PDFIntestine is a major target of vitamin D and several studies indicate an association between vitamin D deficiency and inflammatory bowel diseases (IBD), but also increased colorectal cancer (CRC) risk and mortality. However, the putative effects of 1α,25-dihydroxyvitamin D (calcitriol), the active vitamin D metabolite, on human colonic stem cells are unknown. Here we show by immunohistochemistry and RNAscope in situ hybridization that vitamin D receptor (VDR) is unexpectedly expressed in LGR5 colon stem cells in human tissue and in normal and tumor organoid cultures generated from patient biopsies.
View Article and Find Full Text PDFThe Wnt/β-catenin signalling pathway is essential for intestinal epithelium homeostasis, but its aberrant activation is a hallmark of colorectal cancer (CRC). Several studies indicate that the bioactive vitamin D metabolite 1α,25-dihydroxyvitamin D (1,25(OH)D) inhibits proliferation and promotes epithelial differentiation of colon carcinoma cells in part through antagonism of the Wnt/β-catenin pathway. It is now accepted that stromal fibroblasts are crucial in healthy and pathologic intestine: pericryptal myofibroblasts are constituents of the stem cell niche and cancer-associated fibroblasts (CAFs) contribute to CRC progression.
View Article and Find Full Text PDFColorectal cancer results from the malignant transformation of colonic epithelial cells. Stromal fibroblasts are the main component of the tumour microenvironment, and play an important role in the progression of this and other neoplasias. Wnt/β-catenin signalling is essential for colon homeostasis, but aberrant, constitutive activation of this pathway is a hallmark of colorectal cancer.
View Article and Find Full Text PDFEthylene propylene diene monomer (EPDM) rubber is widely used in a diverse type of applications, such as the automotive, industrial and construction sectors among others. Due to its appealing features, the consumption of vulcanized EPDM rubber is growing significantly. However, environmental issues are forcing the application of devulcanization processes to facilitate recovery, which has led rubber manufacturers to implement strict quality controls.
View Article and Find Full Text PDFObjective: The aim of this paper is to compare the state of Cardiac Rehabilitation Programs (CRP) in 2009 with 2015. Focus is directed on health care, training of health-providers, research, and the barriers to their implementation.
Methods: All authors of RENAPREC-2009, and other cardiac rehabilitation leaders in Mexico were requested to participate.
Objective: Colorectal cancer (CRC) is a major health concern. Vitamin D deficiency is associated with high CRC incidence and mortality, suggesting a protective effect of vitamin D against this disease. Given the strong influence of tumour stroma on cancer progression, we investigated the potential effects of the active vitamin D metabolite 1α,25-dihydroxyvitamin D (1,25(OH)D) on CRC stroma.
View Article and Find Full Text PDFObjective: To evaluate if the application of a negative-pressure therapy system (Prevena Incision Management System, Kinetics Concepts Inc, [KCI] an Acelity Company, San Antonio, Texas) on ileostomy-closure surgical wounds would reduce surgical site infections (SSIs) in comparison with conventional closure and dressing.
Design: Prospective interventional pilot study.
Setting: La Paz University Hospital, tertiary care academic hospital in Madrid, Spain.
We show that galactomannan, a polysaccharide consisting of a mannose backbone with galactose side groups present on the cell wall of several fungi, induces a reprogramming of the inflammatory response in human macrophages through dectin-1 receptor. The nuclear factor kappa-light-chain-enhancer of activated B cells 2 (NFκB2)/p100 was overexpressed after galactomannan challenge. Knocking down NFκB2/p100 using small interfering RNA (siRNA) indicated that NFκB2/p100 expression is a crucial factor in the progression of the galactomannan-induced refractoriness.
View Article and Find Full Text PDFPaperboard is widely used in different applications, such as packaging and graphic printing, among others. Consumption of recycled paper is growing, which has led the paper-mill packaging industry to apply strict quality controls. This means that it is very important to develop methods to test the quality of recycled products.
View Article and Find Full Text PDFAim: Transanal minimal invasive surgery (TAMIS) of rectal lesions is increasingly being used, but the technique is not yet standardized. The aims of this study were to evaluate peri-operative complications and long-term functional outcome of the technique and to analyse whether or not the rectal defect needs to be closed.
Method: Consecutive patients undergoing TAMIS using the SILS port (Covidien) and standard laparoscopic instruments were studied.
World J Gastrointest Surg
September 2014
Aim: To study the morbidity and complications associated to ileostomy reversal in colorectal surgery patients, and if these are related to the time of closure.
Methods: A retrospective analysis of 93 patients, who had undergone elective ileostomy closure between 2009 and 2013 was performed. Demographic, clinical and surgical variables were reviewed for analysis.
Tech Coloproctol
March 2014
The authors report that TEM with a single-incision laparoscopic surgery (SILS) port can be facilitated by the use of a colonoscope instead of a conventional laparoscopic camera. The colonoscope can be inserted through one of the SILS channels and has the added benefit of flexibility, insufflation, irrigation, suction, and an operative port.
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