37 research outputs found
Adrb2 gene polymorphisms and salbutamol responsiveness in Serbian children with asthma
Inhaled beta 2 adrenergic receptor (beta 2-AR) agonists are the mainstay of asthma therapy. The beta 2-AR protein is encoded by the ADRB2 gene and variants within this gene can have significant consequences for modulating the response to asthma therapy. This cross-sectional study performed at the University Children's Hospital in Belgrade, included 54 children with asthma. The subjects were genotyped for ADRB2 +46A gt G (Arg16Gly, rs1042713) and +79C gt G (G1n27G1u, rs1042714) polymorphisms and the association with asthma severity and response to inhaled salbutamol was examined. In Serbian asthmatic children, allele +46A was detected with a frequency of 41.7% and allele +79G was detected with a frequency of 23.1%. Allele +460 was found to be associated with a better response to inhaled salbutamol (p lt 0.05) and with mild form of asthma (p lt 0.05). Polymorphism ADRB2 +46A gt G may be a determinant of asthma severity and response to salbutamol in children with asthma. We did not find any association of +79C gt G polymorphisms with the asthma severity and bronchodilator response to inhaled salbutamol. The results of this study can be potentially useful for personalization of asthma treatment
A gold nanoparticles and hydroxylated fullerene water complex as a new product for cosmetics
Three types of gold nanoparticles (AuNPs) were synthesised with a custom-made Ultrasonic Spray Pyrolysis (USP) device, from aqueous solutions of gold (III) chloride (AuCl3) and gold (III) acetate (AuC6H12O6), with an initial concentration of Au 0.5 g/L. AuNPs were collected in suspensions of deionised (D.I.) water with the stabilisers polyvinylpyrrolidone (PVP) or polyethylene glycol (PEG), followed by the process of freeze drying the AuNPs to be useful as a new additive for the cream. The standard cream base was used as a matrix for preparation of three types of cream with AuNPs in the same concentration ratios. The third AuNPs cream was prepared with a patented hydroxylated fullerene water complex (3HFWC-W) matrix. To examine the effect of AuNPs as additive in creams, a six-week study of test creams was conducted on 33 volunteers with no dermatological diseases. During the study three main parameters of the skin where measured: Collagen quality, skin moisturisation and the epidermis-dermis function. The results of the study found improvements of collagen quality between 18-24 %, achieved due to the use of AuNPs in standard creams, while the cream with the combination of 3HFWC-W and AuNPs gave significantly higher improvements with a value of 45.7 %. It was also discovered that hydration of the skin (stratum cornum) increased by 6.4-9.6 % in standard creams with AuNPs, and 73.7 % in the 3HFWC/AuNPs' cream. Similar results were measured by the epidermisdermis function, where 24-28 % improvement for standard creams with AuNPs was identified, and 38.4 % for the cream 3HFWC-W/AuNPs
Inhibicija rasta plijesni Aspergillus ochraceus ZMPBF 318 i Penicillum expansum ZMPBF 565 djelovanjem Äetiriju eteriÄnih ulja
Fungi produce a large variety of extracellular proteins, organic acids, and other metabolites and can adapt to several environmental conditions. Mycotoxin-producing moulds of the genera Aspergillus and Penicillium are common food contaminants. One of the natural ways to protect food from mould contamination is to use essential oils. In this study, we evaluated the effect of essential oils of cinnamon, lavender, rosemary, and sage at 1 % (v/v) concentration in yeast media inoculated with spores (fi nal concentration 106 mL-1 media) of Aspergillus ochraceus ZMPBF 318 and Penicillium expansum ZMPBF 565, alone or in combination, on fungal biomass. Cinnamon showed the best inhibitory effect (100 %). Lavender oil best inhibited the growth of Aspergillus ochraceus (nearly 100 %), and was less successful with Penicillium expansum (having dropped to 57 % on day 28). With cultivation time the inhibitory effect of sage and rosemary oil grew for Aspergillus ochraceus and dropped for Penicillium expansum. These results suggest that fungi can be controlled with essential oils, especially with cinnamon oil.Plijesni su poznate po svojoj visokoj sposobnosti proizvodnje razliÄitih izvanstaniÄnih proteina, organskih kiselina i drugih metabolita i po svojoj moguÄnosti prilagodbe na nepovoljne okoliÅ”ne uvjete, a primjenjuju se i u obradi otpadnih voda. Plijesni iz rodova Aspergillus i Penicillium Äesti su kontaminanti u hrani i posebno opasne jer tvore toksiÄne metabolite mikotoksine. EteriÄna ulja mogu se primijeniti kao prirodna sredstva za zaÅ”titu hrane od kontaminacije plijesnima. U radu su prikazani rezultati istraživanja utjecaja eteriÄnih ulja cimeta, lavande, ružmarina i kadulje na kontrolu rasta biomase plijesni Aspergillus ochraceus ZMPBF 318 i Penicillium expansum ZMPBF 565, u obliku Äistih i mijeÅ”anih kultura. Ulja su dodavana u koncentraciji od 1 % (v/v), a podloga (kvaÅ”Äev ekstrakt) bila je nacijepljena suspenzijama spora plijesni
(106 mL-1 podloge). EteriÄno ulje cimeta pokazalo je najveÄi inhibitorni uÄinak (100 %). Inhibitorni uÄinak eteriÄnog ulja lavande bio je veÄi na rast Aspergillusa ochraceusa (skoro 100 %) nego Penicilliuma expansuma (57 %). EteriÄna ulja kadulje i ružmarina pokazala su suprotne uÄinke. Inhibitorni uÄinak na Aspergillus ochraceus tijekom perioda uzgoja je rastao, a na Penicillium expansum opadao.
Rezultati pokazuju da se rast plijesni može kontrolirati primjenom eteriÄnih ulja, a posebno uljem cimeta. TakoÄer upuÄuju na ekonomsku vrijednost takvih tretmana
New Mediterranean Biodiversity Records (July 2015)
The Collective Article āNew Mediterranean Biodiversity Recordsā of the Mediterranean Marine Science journal offers the means to publish biodiversity records in the Mediterranean Sea. The current article is divided in two parts, for records of native and alien species respectively. The new records of native species include: the neon flying squid Ommastrephes bartramii in Capri Island, Thyrrenian Sea; the bigeye thresher shark Alopias superciliosus in the Adriatic Sea; a juvenile basking shark Cetorhinus maximus caught off Piran (northern Adriatic); the deep-sea Messina rockfish Scorpaenodes arenai in the National Marine Park of Zakynthos (East Ionian Sea, Greece); and the oceanic puffer Lagocephalus lagocephalus in the Adriatic Sea.The new records of alien species include: the red algae Antithamnionella elegans and Palisada maris-rubri, found for the first time in Israel and Greece respectively; the green alga Codium parvulum reported from Turkey (Aegean Sea); the first record of the alien sea urchin Diadema setosum in Greece; the nudibranch Goniobranchus annulatus reported from South-Eastern Aegean Sea (Greece); the opisthobranch Melibe viridis found in Lebanon; the new records of the blue spotted cornetfish Fistularia commersonii in the Alicante coast (Eastern Spain); the alien fish Siganus luridus and Siganus rivulatus in Lipsi Island, Dodecanese (Greece); the first record of Stephanolepis diaspros from the Egadi Islands Marine Protected Area (western Sicily); a northward expansion of the alien pufferfish Torquigener flavimaculosus along the southeastern Aegean coasts of Turkey; and data on the occurrence of the Lessepsian immigrants Alepes djedaba, Lagocephalus sceleratus and Fistularia commersonii in Zakynthos Island (SE Ionian Sea, Greece)
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Ethical principles in machine learning and artificial intelligence: cases from the field and possible ways forward
Decision-making on numerous aspects of our daily lives is being outsourced to machine-learning algorithms and artificial intelligence (AI), motivated by speed and efficiency in the decision process. Machine learning (ML) approaches - one of the typologies of algorithms underpinning artificial intelligence - are typically developed as black boxes. The implication is that ML code scripts are rarely scrutinised; interpretability is usually sacrificed in favour of usability and effectiveness. Room for improvement in practices associated with programme development have also been flagged along other dimensions, including inter alia fairness, accuracy, accountability, and transparency. In this contribution, the production of guidelines and dedicated documents around these themes is discussed. The following applications of AI-driven decision making are outlined: a) Risk assessment in the criminal justice system, and b) autonomous vehicles, highlighting points of friction across ethical principles. Possible ways forward towards the implementation of governance on AI are finally examined
Unpublished Mediterranean and Black Sea records of marine alien, cryptogenic, and neonative species
To enrich spatio-temporal information on the distribution of alien, cryptogenic, and neonative species in the Mediterranean and the Black Sea, a collective effort by 173 marine scientists was made to provide unpublished records and make them open access to the scientific community. Through this effort, we collected and harmonized
a dataset of 12,649 records. It includes 247 taxa, of which 217 are Animalia, 25 Plantae and 5 Chromista, from 23 countries surrounding the Mediterranean and the Black Sea. Chordata was the most abundant taxonomic group, followed by Arthropoda, Mollusca, and Annelida. In terms of species records, Siganus luridus, Siganus rivulatus,
Saurida lessepsianus, Pterois miles, Upeneus moluccensis, Charybdis (Archias) longicollis, and Caulerpa cylindracea were the most numerous. The temporal distribution of the records ranges from 1973 to 2022, with 44% of the records in 2020ā2021. Lethrinus borbonicus is reported for the first time in the Mediterranean Sea, while Pomatoschistus quagga, Caulerpa cylindracea, Grateloupia turuturu, and Misophria pallida are first records for the Black Sea; Kapraunia schneideri is recorded for the second time in the Mediterranean and for the first time in Israel; Prionospio depauperata and Pseudonereis anomala are reported for the first time from the Sea of Marmara. Many first country records are also included, namely: Amathia verticillata (Montenegro), Ampithoe valida (Italy), Antithamnion amphigeneum (Greece), Clavelina oblonga (Tunisia and Slovenia), Dendostrea cf. folium (Syria), Epinephelus fasciatus (Tunisia), Ganonema farinosum (Montenegro), Macrorhynchia philippina (Tunisia), Marenzelleria neglecta (Romania), Paratapes
textilis (Tunisia), and Botrylloides diegensis (Tunisia)
Azo Dyes, Their Environmental Effects, and Defining a Strategy for Their Biodegradation and Detoxification
Intenzivan industrijski razvoj popraÄen je sve veÄom kompleksnoÅ”Äu sastava otpadnih voda, Å”to u smislu uÄinkovite zaÅ”tite okoliÅ”a i održivog razvoja nalaže potrebu pospjeÅ”ivanja kvalitete postojeÄih te uvoÄenjem novih postupaka obrade otpadnih voda, kao iznimno važnog Äimbenika u interakciji Äovjeka i okoliÅ”a. Posebnu znanstveno-tehnoloÅ”ku pozornost zahtijevaju novosintetizirani ksenobiotici, poput azo-boja, koji su u prirodi veoma teÅ”ko razgradivi. Azo-boje podložne su bioakumulaciji, a zbog alergijskih, kancerogenih, mutagenih i teratogenih svojstava nerijetko su prijetnja zdravlju ljudi i oÄuvanju okoliÅ”a. Primjenu fi zikalnokemijskih
metoda za uklanjanje azo-boja iz otpadnih voda Äesto ograniÄavaju visoke cijene, potrebe za odlaganjem nastalog Å”tetnog mulja ili nastanak toksiÄnih sastojaka razgradnje. BiotehnoloÅ”ki postupci su,
zbog moguÄnosti ekonomiÄne provedbe i postizanja potpune biorazgradnje, a time i detoksifi kacije, sve zastupljeniji u obradi svih vrsta otpadnih voda, pa tako i onih koje sadržavaju azo-boje.Intense industrial development has been accompanied by the production of wastewaters of very complex content, which pose a serious hazard to the environment, put at risk sustainable development, and call for new treatment technologies that would more effectively address the issue. One particular challenge in terms of science and technology is how to biodegrade xenobiotics such as azo dyes, which practically do not degrade under natural environmental conditions. These compounds tend to bioaccumulate in the environment, and have allergenic, carcinogenic, mutagenic, and teratogenic properties for humans. Removal of azo dyes from effl uents is mostly based on physical-chemical methods. These methods are often very costly and limited, as they accumulate concentrated sludge, which also poses a significant secondary disposal problem, or produce toxic end-products. Biotechnological approach may offer alternative, lowcost biological treatment systems that can completely biodegrade and detoxify even the hard-to-biodegrade azo dyes
Energy saving in the street lighting control systemāa new approach based on the EN-15232 standard
Anomalous colouration of a starry weever, Trachinus radiatus (Actinopterygii: Perciformes: Trachinidae), from the Adriatic Sea
The record of abnormally pigmented starry weever, Trachinus radiatus Cuvier, 1829, is described. The specimen was caught in Nature Park Lastovo archipelago, eastern Adriatic Sea, and displayed an overall lack of usual dark brown pigmentation. The skin was marked by a predominance of yellow to red pigments corresponding with a rare colour anomaly condition of xanthochromism. Due to the unusual appearance of the specimen, we used molecular methods for proper identification of the species. This seems to be the first documented record of xanthochromism in the family Trachinidae