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Article: Vitamin D and COVID-19 in an immunocompromised patient with multiple comorbidities-A Case Report.

Kralj, Martina / Jakovac, Hrvoje

2021 Volume 9, Issue 4, Page(s) 2269–2275

Abstract: Routine 25-OH-Vitamin D3 measurement in COVID-19 patients could be of great importance, either for clinical course estimation or deciding on supplementation. ...

Abstract	Routine 25-OH-Vitamin D3 measurement in COVID-19 patients could be of great importance, either for clinical course estimation or deciding on supplementation.
Language	English
Publishing date	2021-03-05
Publishing country	England
Document type	Case Reports
ZDB-ID	2740234-4
ISSN	2050-0904
ISSN	2050-0904
DOI	10.1002/ccr3.4010
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Vitamin D and COVID‐19 in an immunocompromised patient with multiple comorbidities—A Case Report

Martina Kralj / Hrvoje Jakovac

Clinical Case Reports, Vol 9, Iss 4, Pp 2269-

2021 Volume 2275

Abstract: Abstract Routine 25‐OH‐Vitamin D3 measurement in COVID‐19 patients could be of great importance, either for clinical course estimation or deciding on supplementation. ...

Abstract	Abstract Routine 25‐OH‐Vitamin D3 measurement in COVID‐19 patients could be of great importance, either for clinical course estimation or deciding on supplementation.
Keywords	COVID‐19 ; methotrexate ; risk factors ; SARS‐CoV‐2 ; severity ; vitamin D3 ; Medicine ; R ; Medicine (General) ; R5-920
Language	English
Publishing date	2021-04-01T00:00:00Z
Publisher	Wiley
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Silica Coated Bi

Belec, Blaž / Kostevšek, Nina / Pelle, Giulia Della / Nemec, Sebastjan / Kralj, Slavko / Bergant Marušič, Martina / Gardonio, Sandra / Fanetti, Mattia / Valant, Matjaž

Nanomaterials (Basel, Switzerland)

2023 Volume 13, Issue 5

Abstract: Localized surface plasmon resonance (LSPR) is the cause of the photo-thermal effect observed in topological insulator (TI) bismuth selenide ( ... ...

Abstract	Localized surface plasmon resonance (LSPR) is the cause of the photo-thermal effect observed in topological insulator (TI) bismuth selenide (Bi
Language	English
Publishing date	2023-02-22
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662255-5
ISSN	2079-4991
ISSN	2079-4991
DOI	10.3390/nano13050809
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Article ; Online: Annual recurrence of prokaryotic climax communities in shallow waters of the North Mediterranean.

Celussi, Mauro / Manna, Vincenzo / Banchi, Elisa / Fonti, Viviana / Bazzaro, Matteo / Flander-Putrle, Vesna / Klun, Katja / Kralj, Martina / Orel, Neža / Tinta, Tinkara

Environmental microbiology

2024 Volume 26, Issue 3, Page(s) e16595

Abstract: In temperate coastal environments, wide fluctuations of biotic and abiotic factors drive microbiome dynamics. To link recurrent ecological patterns with planktonic microbial communities, we analysed a monthly-sampled 3-year time series of 16S rRNA ... ...

Abstract	In temperate coastal environments, wide fluctuations of biotic and abiotic factors drive microbiome dynamics. To link recurrent ecological patterns with planktonic microbial communities, we analysed a monthly-sampled 3-year time series of 16S rRNA amplicon sequencing data, alongside environmental variables, collected at two stations in the northern Adriatic Sea. Time series multivariate analyses allowed us to identify three stable, mature communities (climaxes), whose recurrence was mainly driven by changes in photoperiod and temperature. Mixotrophs (e.g., Ca. Nitrosopumilus, SUP05 clade, and Marine Group II) thrived under oligotrophic, low-light conditions, whereas copiotrophs (e.g., NS4 and NS5 clades) bloomed at higher temperatures and substrate availability. The early spring climax was characterised by a more diverse set of amplicon sequence variants, including copiotrophs associated with phytoplankton-derived organic matter degradation, and photo-auto/heterotrophic organisms (e.g., Synechococcus sp., Roseobacter clade), whose rhythmicity was linked to photoperiod lengthening. Through the identification of recurrent climax assemblages, we begin to delineate a typology of ecosystem based on microbiome composition and functionality, allowing for the intercomparison of microbial assemblages among different biomes, a still underachieved goal in the omics era.
MeSH term(s)	Ecosystem ; Seawater/chemistry ; RNA, Ribosomal, 16S/genetics ; Plankton/genetics ; Phytoplankton/genetics ; Archaea/genetics
Chemical Substances	RNA, Ribosomal, 16S
Language	English
Publishing date	2024-02-28
Publishing country	England
Document type	Journal Article
ZDB-ID	2020213-1
ISSN	1462-2920 ; 1462-2912
ISSN (online)	1462-2920
ISSN	1462-2912
DOI	10.1111/1462-2920.16595
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Article ; Online: Characterization of an undocumented CO2 hydrothermal vent system in the Mediterranean Sea: Implications for ocean acidification forecasting.

D'Alessandro, Michela / Gambi, Maria Cristina / Bazzarro, Matteo / Caruso, Cinzia / Di Bella, Marcella / Esposito, Valentina / Gattuso, Alessandro / Giacobbe, Salvatore / Kralj, Martina / Italiano, Francesco / Lazzaro, Gianluca / Sabatino, Giuseppe / Urbini, Lidia / Vittor, Cinzia De

PloS one

2024 Volume 19, Issue 2, Page(s) e0292593

Abstract: A previously undocumented shallow water hydrothermal field from Sicily (Southern Tyrrhenian Sea, Italy) is here described, based on a multidisciplinary investigation. The field, covering an area of nearly 8000 m2 and a depth from the surface to -5 m, was ...

Abstract	A previously undocumented shallow water hydrothermal field from Sicily (Southern Tyrrhenian Sea, Italy) is here described, based on a multidisciplinary investigation. The field, covering an area of nearly 8000 m2 and a depth from the surface to -5 m, was explored in June 2021 to characterise the main physico-chemical features of the water column, describe the bottom topography and features, and identify the main megabenthic and nektonic species. Twenty sites were investigated to characterise the carbonate system. Values of pH ranged between 7.84 and 8.04, ΩCa between 3.68 and 5.24 and ΩAr from 2.41 to 3.44. Geochemical analyses of hydrothermal gases revealed a dominance of CO2 (98.1%) together with small amounts of oxygen and reactive gases. Helium isotope ratios (R/Ra = 2.51) and δ13CCO2 suggest an inorganic origin of hydrothermal degassing of CO2 and the ascent of heat and deep-seated magmatic fluids to the surface. Visual census of fishes and megabenthos (mainly sessile organisms) allowed the identification of 64 species, four of which are protected by the SPA/BIO Protocol and two by the International Union for Conservation of Nature. The macroalgae Halopteris scoparia and Jania rubens and the sponge Sarcotragus sp. were the dominant taxa in the area, while among fishes Coris julis and Chromis chromis were the most abundant species. This preliminary investigation of San Giorgio vent field suggests that the site could be of interest and suitable for future experimental studies of ocean acidification.
MeSH term(s)	Mediterranean Sea ; Seawater/chemistry ; Carbon Dioxide/chemistry ; Hydrothermal Vents ; Hydrogen-Ion Concentration ; Ocean Acidification ; Water ; Sicily
Chemical Substances	Carbon Dioxide (142M471B3J) ; Water (059QF0KO0R)
Language	English
Publishing date	2024-02-08
Publishing country	United States
Document type	Journal Article
ZDB-ID	2267670-3
ISSN	1932-6203 ; 1932-6203
ISSN (online)	1932-6203
ISSN	1932-6203
DOI	10.1371/journal.pone.0292593
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Article ; Online: Benthic and Pelagic Contributions to Primary Production

Tamara Cibic / Laura Baldassarre / Federica Cerino / Cinzia Comici / Daniela Fornasaro / Martina Kralj / Michele Giani

Frontiers in Marine Science, Vol

Experimental Insights From the Gulf of Trieste (Northern Adriatic Sea)

2022 Volume 9

Abstract: Although the 14C-method remains one of the most sensitive measures of primary production in marine ecosystems, few data from coastal sublittoral areas are available. We applied an integrated approach to quantify the benthic (PPs) and pelagic (PPw) ... ...

Abstract	Although the 14C-method remains one of the most sensitive measures of primary production in marine ecosystems, few data from coastal sublittoral areas are available. We applied an integrated approach to quantify the benthic (PPs) and pelagic (PPw) contributions to total primary production (PPt) in a 17-m deep coastal site. From March 2015 to March 2019, we carried out 16 in situ experiments on a seasonal basis, at the LTER site C1, whereas benthic rates were estimated in the laboratory. To relate PP to seawater physical features and to the water column stability, the Brunt-Väisälä frequency was calculated. We further related our PP rates to the abundance, biomass, main taxonomic groups and diversity of eukaryotic phytoplankton and microphytobenthos (MPB). In November 2018, the maximum PPw (6.71 ± 0.82 µgC L-1 h-1) was estimated at the surface layer, in correspondence to the highest value of dinoflagellates biomass (29.35 µgC L-1), on the account of small (<20 µm) naked and thecate forms. PPi, integrated over the water column, displayed the highest values in July 2017 and July 2018. In sediments, negative PPs values were estimated in late autumn/winter, when minima of MPB abundance occurred. The highest rates were displayed in January 2018 and October 2016 (28.50 and 17.55 mgC m-2 h-1), due to the presence of dominant diatoms Paralia sulcata and Nitzschia sigma var. sigmatella, respectively. The PPs contribution to PPt was negligible (<2%) in 6 out of 16 experiments, with a mean value of 11.3% (excluding negative PPs values) over the study period, while it reached up to 43% in January 2018. The principal component analyses revealed that nutrients availability affected the seasonal development of pelagic and benthic phototrophs and primary production more than the physical variables, except for the surface layer of the water column where temperature and salinity were the main drivers. Our results add on the limited database on primary production in sublittoral areas and represent one of the few attempts, on ...
Keywords	primary production ; benthic-pelagic coupling ; 14C-uptake ; phytoplankton ; microphytobenthos ; nutrient availability ; Science ; Q ; General. Including nature conservation ; geographical distribution ; QH1-199.5
Subject code	333
Language	English
Publishing date	2022-06-01T00:00:00Z
Publisher	Frontiers Media S.A.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Physical and biological controls on anthropogenic CO2 sink of the Ross Sea

Gianmarco Ingrosso / Michele Giani / Martina Kralj / Cinzia Comici / Paola Rivaro / Giorgio Budillon / Pasquale Castagno / Luca Zoccarato / Mauro Celussi

Frontiers in Marine Science, Vol

2022 Volume 9

Abstract: The Antarctic continental shelf is known as a critical anthropogenic CO2 (Cant) sink due to its cold waters, high primary productivity, and unique circulation, which allow it to sequester large amounts of organic and inorganic carbon into the deep ocean. ...

Abstract	The Antarctic continental shelf is known as a critical anthropogenic CO2 (Cant) sink due to its cold waters, high primary productivity, and unique circulation, which allow it to sequester large amounts of organic and inorganic carbon into the deep ocean. However, climate change is currently causing significant alteration to the Antarctic marine carbon cycle, with unknown consequences on the Cant uptake capacity, making model-based estimates of future ocean acidification of polar regions highly uncertain. Here, we investigated the marine carbonate system in the Ross Sea in order to assess the current anthropogenic carbon content and how physical–biological processes can control the Cant sequestration along the shelf-slope continuum. The Winter Water mass generated from convective events was characterized by high Cant level (28 µmol kg−1) as a consequence of the mixed layer break-up during the cold season, whereas old and less-ventilated Circumpolar Deep Water entering the Ross Sea revealed a very scarce contribution of anthropogenic carbon (7 µmol kg−1). The Cant concentration was also different between polynya areas and the shelf break, as a result of their specific hydrographic characteristics and biological processes: surface waters of the Ross Sea and Terra Nova Bay polynyas served as strong CO2 sink (up to −185 mmol m−2), due to the remarkable net community production, estimated from the summertime surface-dissolved inorganic carbon deficit. However, a large amount of the generated particulate organic carbon was promptly consumed by intense microbial activity, giving back carbon dioxide into the intermediate and deep layers of the continental shelf zone. Further Cant also derived from High-Salinity Shelf Water produced during winter sea ice formation (25 µmol kg−1), fueling dense shelf waters with additional input of Cant, which was finally stored into the abyssal sink through continental slope outflow (19 µmol kg−1). Our results suggest that summer biological activity over the Ross Sea shelf is pivotal for ...
Keywords	anthropogenic CO2 ; carbonate system ; ocean acidification ; Ross Sea ; Antarctica ; Science ; Q ; General. Including nature conservation ; geographical distribution ; QH1-199.5
Subject code	551 ; 550
Language	English
Publishing date	2022-09-01T00:00:00Z
Publisher	Frontiers Media S.A.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Phytoplankton temporal dynamics in the coastal waters of the north-eastern Adriatic Sea (Mediterranean Sea) from 2010 to 2017

Federica Cerino / Daniela Fornasaro / Martina Kralj / Michele Giani / Marina Cabrini

Nature Conservation, Vol 34, Iss , Pp 343-

2019 Volume 372

Abstract: Phytoplankton community structure was analysed from 2010 to 2017 at C1-LTER, the coastal Long-Term Ecological Research station located in the Gulf of Trieste, which is the northernmost part of the Mediterranean Sea. Phytoplankton abundance and relevant ... ...

Abstract	Phytoplankton community structure was analysed from 2010 to 2017 at C1-LTER, the coastal Long-Term Ecological Research station located in the Gulf of Trieste, which is the northernmost part of the Mediterranean Sea. Phytoplankton abundance and relevant oceanographic parameters were measured monthly in order to describe the seasonal cycle and interannual variability of the main phytoplankton taxa (diatoms, dinoflagellates, coccolithophores and flagellates) and to analyse their relationship with environmental conditions. Overall, phytoplankton abundances showed a marked seasonal cycle characterised by a bloom in spring, with the peak in May. During the summer, phytoplankton abundances gradually decreased until September, then slightly increased again in October and reached their minima in winter. In general, the phytoplankton community was dominated by flagellates (generally <10 µm) and diatoms co-occurring in the spring bloom. In this period, diatoms were also represented by nano-sized species, gradually replaced by larger species in summer and autumn. Phytoplankton assemblages differed significantly between seasons (Pseudo-F = 9.59; p < 0.01) and temperature and salinity were the best predictor variables explaining the distribution of the multivariate data cloud. At the interannual scale, a strong decrease of the late-winter bloom was observed in recent years with the spring bloom being the main phytoplankton increase of the year.
Keywords	Ecology ; QH540-549.5 ; General. Including nature conservation ; geographical distribution ; QH1-199.5
Subject code	333 ; 551
Language	English
Publishing date	2019-05-01T00:00:00Z
Publisher	Pensoft Publishers
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Climatic and Anthropogenic Impacts on Environmental Conditions and Phytoplankton Community in the Gulf of Trieste (Northern Adriatic Sea)

Cozzi, Stefano / Cabrini, Marina / Kralj, Martina / De Vittor, Cinzia / Celio, Massimo / Giani, Michele

Water. 2020 Sept. 22, v. 12, no. 9

2020

Abstract: During the last century, human activities have exerted an increasing pressure on coastal ecosystems, primarily inducing their eutrophication, with a more recent partial mitigation of this phenomenon where improvements of environmental management ... ...

Abstract	During the last century, human activities have exerted an increasing pressure on coastal ecosystems, primarily inducing their eutrophication, with a more recent partial mitigation of this phenomenon where improvements of environmental management practices were adopted. However, a reanalysis of the pressures on coastal zones and surrounding drainage basins is needed because of the alterations induced nowadays by the climate changes. A comparative analysis of long-term oceanographic and environmental data series (1986–2018) was performed, in order to highlight the effects of anthropogenic and climatic disturbances on the phytoplankton community in the Gulf of Trieste (GoT). After the 1980s, the decline in phytoplankton abundance was matched to increasing periods of low runoff, an overall deficit of the precipitation and to a decrease in phosphate availability in the coastal waters (-0.003 µmol L⁻¹ yr⁻¹), even in the presence of large riverine inputs of nitrogen and silicates. This trend of oligotrophication was reversed in the 2010s by the beginning of a new and unexpected phase of climatic instability, which also caused changes of the composition and seasonal cycle of the phytoplankton community. Beyond the management of nutrient loads, it was shown that climatic drivers such as seawater warming, precipitation and wind regime affect both nutrient balance and phytoplankton community in this coastal zone.
Keywords	coasts ; drainage ; environmental management ; eutrophication ; humans ; nitrogen ; nutrient balance ; oligotrophication ; phosphates ; phytoplankton ; riparian areas ; runoff ; seasonal variation ; seawater ; wind ; Adriatic Sea
Language	English
Dates of publication	2020-0922
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2521238-2
ISSN	2073-4441
ISSN	2073-4441
DOI	10.3390/w12092652
Database	NAL-Catalogue (AGRICOLA)

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Article: Phytoplankton temporal dynamics in the coastal waters of the north-eastern Adriatic Sea (Mediterranean Sea) from 2010 to 2017

Cerino, Federica / Fornasaro, Daniela / Kralj, Martina / Giani, Michele / Marina Cabrini

Nature conservation. 2019 May 03, v. 34

2019

Abstract	Phytoplankton community structure was analysed from 2010 to 2017 at C1-LTER, the coastal Long-Term Ecological Research station located in the Gulf of Trieste, which is the northernmost part of the Mediterranean Sea. Phytoplankton abundance and relevant oceanographic parameters were measured monthly in order to describe the seasonal cycle and interannual variability of the main phytoplankton taxa (diatoms, dinoflagellates, coccolithophores and flagellates) and to analyse their relationship with environmental conditions. Overall, phytoplankton abundances showed a marked seasonal cycle characterised by a bloom in spring, with the peak in May. During the summer, phytoplankton abundances gradually decreased until September, then slightly increased again in October and reached their minima in winter. In general, the phytoplankton community was dominated by flagellates (generally <10 µm) and diatoms co-occurring in the spring bloom. In this period, diatoms were also represented by nano-sized species, gradually replaced by larger species in summer and autumn. Phytoplankton assemblages differed significantly between seasons (Pseudo-F = 9.59; p < 0.01) and temperature and salinity were the best predictor variables explaining the distribution of the multivariate data cloud. At the interannual scale, a strong decrease of the late-winter bloom was observed in recent years with the spring bloom being the main phytoplankton increase of the year.
Keywords	Miozoa ; autumn ; community structure ; natural resources conservation ; phytoplankton ; salinity ; seasonal variation ; spring ; summer ; temperature ; winter ; Adriatic Sea ; Mediterranean Sea
Language	English
Dates of publication	2019-0503
Size	p. 343-372.
Publishing place	Pensoft Publishers
Document type	Article
ZDB-ID	2667603-5
ISSN	1314-3301
ISSN	1314-3301
DOI	10.3897/natureconservation.34.30720
Database	NAL-Catalogue (AGRICOLA)

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