82 research outputs found

    The role of melatonin on chemotherapy-induced reproductive toxicity

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    Abstract Objectives Reproductive malfunctions after chemotherapy still are a reason of reducing fertility and need specialized intensive care. The aim of this review was to investigate the effect of melatonin on the reproductive system under threatening with chemotherapeutic drugs. Methods To find the role of melatonin in the reproductive system during chemotherapy, a full systematic literature search was carried out based on Preferred Reporting Items for Systematic Reviews and Meta‐Analyses guidelines in the electronic databases up to 17 April 2017 using search terms in the titles and abstracts. A total of 380 articles are screened according to our inclusion and exclusion criteria. Finally, 18 articles were included in this study. Key findings It has been cleared that melatonin has bilateral effects on reproductive cells. Melatonin protects normal cells via mechanisms, including decrease in oxidative stress, apoptosis, inflammation and modulating mitochondrial function, and sexual hormones. Furthermore, melatonin with antiproliferative properties and direct effects on its receptors improves reproductive injury and function during chemotherapy. On the other hand, melatonin sensitizes the effects of chemotherapeutic drugs and enhances chemotherapy‐induced toxicity in cancerous cells through increasing apoptosis, oxidative stress and mitochondrial malfunction. Conclusions The study provides evidence of the bilateral role of melatonin in the reproductive system during chemotherapy

    A review of approaches to supply chain communications: from manufacturing to construction

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    With the increasing importance of computer-based communication technologies, communication networks are becoming crucial in supply chain management. Given the objectives of the supply chain: to have the right products in the right quantities, at the right place, at the right moment and at minimal cost, supply chain management is situated at the intersection of different professional sectors. This is particularly the case in construction, since building needs for its fabrication the incorporation of a number of industrial products. This paper provides a review of the main approaches to supply chain communications as used mainly in manufacturing industries. The paper analyses the extent to which these have been applied to construction. It also reviews the on-going developments and research activities in this domain

    Eco-intelligent factories: Timescales for environmental decision support

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    Manufacturing decisions are currently made based on considerations of cost, time and quality. However there is increasing pressure to also routinely incorporate environmental considerations into the decision making processes. Despite the existence of a number of tools for environmental analysis of manu-facturing activities, there does not appear to be a structured approach for gener-ating relevant environmental information that can be fed into manufacturing decision making. This research proposes an overarching structure that leads to three approaches, pertaining to different timescales that enable the generation of environmental information, suitable for consideration during decision making. The approaches are demonstrated through three industrial case studies

    Feasibility and safety of setting up a donor breastmilk bank in a neonatal prem unit in a resource limited setting: An observational, longitudinal cohort study

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    <p>Abstract</p> <p>Background</p> <p>The beneficial effects of human milk on decreasing rates of paediatric infections such as necrotizing enterocolitis (NEC) and sepsis have been clearly demonstrated. Donor breastmilk has been encouraged as the milk of choice when a mother's own breastmilk is not available. The objectives of this study were to assess feasibility of providing donor breastmilk to infants in a resource limited Neonatal Prem Unit (NPU). In addition we sought to determine whether donor breastmilk could be safely pasteurized and administered to infants without any adverse events.</p> <p>Methods</p> <p>Low birth weight infants < 1800 g and under 32 weeks gestational age were followed up in the NPU over a 3 week period; feeding data and morbidity data was collected in order to determine if there were any adverse events associated with donor breastmilk. Samples of pasteurized breastmilk were cultured to check for any bacterial contamination.</p> <p>Results</p> <p>191 infants met the inclusion criteria of whom 96 received their mother's own breastmilk. Of the 95 infants who were potentially eligible to receive donor milk, only 40 did in fact receive donor milk. There was no evidence of bacterial contamination in the samples analyzed, and no evidence of adverse events from feeding with donor breastmilk.</p> <p>Conclusion</p> <p>It is feasible to supply donor breastmilk to infants in an NPU in a resource limited setting, however staff needs to be sensitized to the importance of donor breastmilk to improve uptake rates. Secondly we showed that it is possible to supply donor breastmilk according to established guidelines with no adverse events therefore making it possible to prevent NEC and other side effects often associated with formula feeding of premature infants.</p

    Synergies in the co-location of food manufacturing and biorefining

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    In food and drink manufacturing, costs must be relentlessly minimised because margins for most products are low. At the same time, the business case for biorefining of lignocellulosic feedstocks has been positive in only a small number of cases. Since the two industries use similar feedstocks and processing equipment, there should be potential for significant sharing of resources for economic and environmental gain, particularly with regard to energy, if they were co-located. This paper reviews the nature, issues and opportunities for this sort of resource sharing between food industries and biorefineries. It then illustrates the opportunity by modelling a food product (coffee bean roasting) co-located with lignocellulosic biorefining of its downstream by-product (spent coffee grounds) where biofuels are not the target output, identifying and evaluating the resource efficiencies and economics involved. The analysis shows that there can be significant benefits, but that the exact nature of the food and biorefinery products and the biorefining pathways are the key dependencies. Further research should produce a comprehensive league table of co-location opportunities for the benefit of both industries to enhance both their economics and their sustainability metrics through well-targeted synergies
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