14 research outputs found
Incorporating natural and human factors in habitat modelling and spatial prioritisation for the Lynx lynx martinoi
Countries in south-eastern Europe are cooperating to conserve a sub-endemic lynx species, Lynx lynx martinoi. Yet, the planning of species conservation should go hand-in-hand with the planning and management of (new) protected areas. Lynx lynx martinoi has a small, fragmented distribution with a small total population size and an endangered population. This study combines species distribution modelling with spatial prioritisation techniques to identify conservation areas for Lynx lynx martinoi. The aim was to determine locations of high probability of occurrence for the lynx, to potentially increase current protected areas by 20 % in Albania, the former Yugoslav Republic of Macedonia, Montenegro, and Kosovo. The species distribution modelling used generalised linear models with lynx occurrence and pseudo-absence data. Two models were developed and fitted using the lynx data: one based on natural factors, and the second based on factors associated with human disturbance. The Zonation conservation planning software was then used to undertake spatial prioritisations of the landscape using the first model composed of natural factors as a biological feature, and (inverted) a second model composed of anthropological factors such as a cost layer. The first model included environmental factors as elevation, terrain ruggedness index, woodland and shrub land, and food factor as chamois prey (occurrences) and had a prediction accuracy of 82 %. Second model included anthropological factors as agricultural land and had a prediction accuracy of 65 %. Prioritised areas for extending protected areas for lynx conservation were found primarily in the Albania–Macedonia–Kosovo and Montenegro–Albania–Kosovo cross-border areas. We show how natural and human factors can be incorporated into spatially prioritising conservation areas on a landscape level. Our results show the importance of expanding the existing protected areas in cross-border areas of core lynx habitat. The priority of these cross-border areas highlight the importance international cooperation can play in designing and implementing a coherent and long-term conservation plan including a species conservation plan to securing the future of the lynx
Influence Of Fusariosis In The Biochemical And Rheological Properties Of Different Wheat Cultivars
Fusarium spp. infection of cereal grain is a common problem, which can result in a decline of grain quality. The objective in this study was to understand the correlation between different degrees of infestation and the quantitative-qualitative changes in flour. The effects of different grades of infection of Fusarium were evaluated on: thousand kernel weight, wet gluten (WG), protein content, Zeleny sedimentation (ZS) and Falling Number (FN). Some of the most important rheological tests used in the industry were conducted on wheat flour of all varieties: Mixolab and GlutoPeak Test. The disease index average was 14.07 % varying from 4.07 % to 34.3% .The crude protein content was not significantly affected by the Fusarium spp. infection; on the contrary, FN, ZS and WG showed distinctively decreased values in all the infected cultivars
Does urban shrinkage require urban policy? The case of a post-industrial region in Poland
The problem of depopulation in towns is present in most European countries. In Central and Eastern
Europe it emerged primarily after the political transformation at the turn of the 1980s and 1990s.
Despite the often-significant demographic decline, the problem did not immediately become part of
agenda-setting in towns’ local strategies. This paper discusses the above topics, focusing on the
principal reasons for trivialization of depopulation in local policies of towns in the Silesian Voivodeship,
Poland. In the discussion an emphasis is placed on the fact that in this region the issue of depopulation
and urban shrinkage ‘vied’ with another consequence of transformation: unemployment. Because the
Silesian Voivodeship is one of the largest regional labour markets in Europe, the confrontation of the
two phenomena in local and regional policy took an original course characterized by phenomena such
as policy taboo, trivialization, informal agenda-setting and mismatch strategies. The paper shows that
while all the mentioned attributes of urban policy with respect to depopulation may be regarded as
negative, considering the gigantic scale of the unemployment and depopulation phenomena and lack
of experience in urban governance, they were a ‘natural’ reaction of the local authorities to the
accumulated problems. It also indicates that in the studied region issues such as strongly marked
morphological polycentricity and its (post)mining and (post)industrial nature were also not without
significance
Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study
Summary
Background Congenital anomalies are the fifth leading cause of mortality in children younger than 5 years globally.
Many gastrointestinal congenital anomalies are fatal without timely access to neonatal surgical care, but few studies
have been done on these conditions in low-income and middle-income countries (LMICs). We compared outcomes of
the seven most common gastrointestinal congenital anomalies in low-income, middle-income, and high-income
countries globally, and identified factors associated with mortality.
Methods We did a multicentre, international prospective cohort study of patients younger than 16 years, presenting to
hospital for the first time with oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis,
exomphalos, anorectal malformation, and Hirschsprung’s disease. Recruitment was of consecutive patients for a
minimum of 1 month between October, 2018, and April, 2019. We collected data on patient demographics, clinical
status, interventions, and outcomes using the REDCap platform. Patients were followed up for 30 days after primary
intervention, or 30 days after admission if they did not receive an intervention. The primary outcome was all-cause,
in-hospital mortality for all conditions combined and each condition individually, stratified by country income status.
We did a complete case analysis.
Findings We included 3849 patients with 3975 study conditions (560 with oesophageal atresia, 448 with congenital
diaphragmatic hernia, 681 with intestinal atresia, 453 with gastroschisis, 325 with exomphalos, 991 with anorectal
malformation, and 517 with Hirschsprung’s disease) from 264 hospitals (89 in high-income countries, 166 in middleincome
countries, and nine in low-income countries) in 74 countries. Of the 3849 patients, 2231 (58·0%) were male.
Median gestational age at birth was 38 weeks (IQR 36–39) and median bodyweight at presentation was 2·8 kg (2·3–3·3).
Mortality among all patients was 37 (39·8%) of 93 in low-income countries, 583 (20·4%) of 2860 in middle-income
countries, and 50 (5·6%) of 896 in high-income countries (p<0·0001 between all country income groups).
Gastroschisis had the greatest difference in mortality between country income strata (nine [90·0%] of ten in lowincome
countries, 97 [31·9%] of 304 in middle-income countries, and two [1·4%] of 139 in high-income countries;
p≤0·0001 between all country income groups). Factors significantly associated with higher mortality for all patients
combined included country income status (low-income vs high-income countries, risk ratio 2·78 [95% CI 1·88–4·11],
p<0·0001; middle-income vs high-income countries, 2·11 [1·59–2·79], p<0·0001), sepsis at presentation (1·20
[1·04–1·40], p=0·016), higher American Society of Anesthesiologists (ASA) score at primary intervention
(ASA 4–5 vs ASA 1–2, 1·82 [1·40–2·35], p<0·0001; ASA 3 vs ASA 1–2, 1·58, [1·30–1·92], p<0·0001]), surgical safety
checklist not used (1·39 [1·02–1·90], p=0·035), and ventilation or parenteral nutrition unavailable when needed
(ventilation 1·96, [1·41–2·71], p=0·0001; parenteral nutrition 1·35, [1·05–1·74], p=0·018). Administration of
parenteral nutrition (0·61, [0·47–0·79], p=0·0002) and use of a peripherally inserted central catheter (0·65
[0·50–0·86], p=0·0024) or percutaneous central line (0·69 [0·48–1·00], p=0·049) were associated with lower mortality.
Interpretation Unacceptable differences in mortality exist for gastrointestinal congenital anomalies between lowincome,
middle-income, and high-income countries. Improving access to quality neonatal surgical care in LMICs will
be vital to achieve Sustainable Development Goal 3.2 of ending preventable deaths in neonates and children younger
than 5 years by 2030
Evaluation of tocopherols and tocotrienols in Albanian cultivars
Wheat is a major component in the human diet with an impact on nutritional health due to its significant intake. The aim of this study was to evaluate the quality of Albanian wheat by analysing chemical and nutrition parameters and understanding the health impact of
the components in wheat flour. Five winter wheat cultivars grown during the year 2017 - 2018 on experimental fields of Agriculture Technology Transfer Center (ATTC) in Lushnja were analysed. Protein
content (%N x 5.7) was determined by the Kjedahl method and lipid content was evaluated by Soxhlet extraction method utilizing n-hexane as solvent. The starch content was analyzed following the Megazyme
Starch determination procedure (Megazyme International, Ireland, Ltd). The determination of the total content of tocopherols (TP) and tocotrienols (TT) in the five wheat cultivars was carried out using the High Performance Liquid Chromatography (HPLC) analysis. A descriptive statistical analysis was performed for result elaboration. The analysis of variance (ANOVA) and Principal Component Analysis (PCA) was performed using StatSoft Statistica 10.0 software and the significant differences were calculated according to post - hoc Tukey’s (HSD) test at p ˂ 0.05. All cultivars showed higher level of protein content ranging from 11.39% to 12.38% and the starch content
ranging from 58% to 62%. Statistical results indicated that the protein content was significantly affected by the wheat cultivars. ɑ-Tocopherol and ß-tocotrienol were the most abundant compounds in all samples,
ranging, from 9.8 mg/kg DW to 15.6 mg/kg DW and from 8.1 mg/kg to 12.7 mg/kg DW, respectively. The daily requirement of vitamin E calculated in whole flour ranges from 14.7% to 26%.By selecting the
suitable wheat cultivars with high vitamin E content, we can contribute to increasing the content of vitamin E in Albanian wheat flour and supporting the problems of vitamin E deficiency in the human diet
Does urban shrinkage require urban policy? The case of a post-industrial region in Poland
Utility of single cell genomics in diagnostic evaluation of prostate cancer
A distinction between indolent and aggressive disease is a major challenge in diagnostics of prostate cancer. As genetic heterogeneity and complexity may influence clinical outcome, we have initiated studies on single tumor cell genomics. In this study, we demonstrate that sparse DNA sequencing of single cell nuclei from prostate core biopsies is a rich source of quantitative parameters for evaluating neoplastic growth and aggressiveness. These include the presence of clonal populations, the phylogenetic structure of those populations, the degree of the complexity of copy number changes in those populations, and measures of the proportion of cells with clonal copy number signatures. The parameters all showed good correlation to the measure of prostatic malignancy, the Gleason score, derived from individual prostate biopsy tissue cores. Remarkably, a more accurate histopathological measure of malignancy, the surgical Gleason score, agrees better with these genomic parameters of diagnostic biopsy than it does with the diagnostic Gleason score and related measures of diagnostic histopathology. This is highly relevant since primary treatment decisions are dependent upon the biopsy and not the surgical specimen. Thus, single cell analysis has the potential to augment traditional core histopathology, improving both the objectivity and accuracy of risk assessment and inform treatment decisions
Serotonin receptor expression in hippocampus and temporal cortex of temporal lobe epilepsy patients by postictal generalized electroencephalographic suppression duration
OBJECTIVE: Prolonged postictal generalized EEG suppression (PGES) is a potential biomarker for sudden unexpected death in epilepsy (SUDEP), which may be associated with dysfunctional autonomic responses and serotonin signaling. To better understand molecular mechanisms, PGES duration was correlated to 5HT1A and 5HT2A receptor protein expression and RNAseq from resected hippocampus and temporal cortex of temporal lobe epilepsy (TLE) patients with seizures recorded in preoperative evaluation. METHODS: Analyses included 36 cases (range: age 14-64 years, epilepsy onset 0-51, epilepsy duration 2-53, PGES 0-93 seconds), with 13 cases in all hippocampal analyses. 5HT1A and 5HT2A protein was evaluated by western blot and histologically in hippocampus (n=16) and temporal cortex (n=9). We correlated PGES duration to our previous RNAseq dataset for serotonin receptor expression and signaling pathways, as well as weighted gene correlation network analysis (WGCNA) to identify correlated gene clusters. RESULTS: In hippocampus, 5HT2A protein by western blot positively correlated with PGES duration (p=0.0024, R2 =0.52) but 5HT1A did not (p=0.87, R2 =0.0020). In temporal cortex, 5HT1A and 5HT2A had lower expression and did not correlate with PGES duration. Histologically, PGES duration did not correlate with 5HT1A or 5HT2A expression in hippocampal CA4, dentate gyrus, or temporal cortex. RNAseq identified two serotonin receptors with expression that correlated to PGES duration in an exploratory analysis: HTR3B negatively correlated (p=0.043, R2 =0.26) and HTR4 positively correlated (p=0.049, R2 =0.25). WGCNA identified 4 modules correlated to PGES duration, including positive correlation to synaptic transcripts (p=0.040, corr.=0.52), particularly potassium channels (KCNA4, KCNC4, KCNH1, KCNIP4, KCNJ3, KCNJ6, KCNK1). No modules were associated with serotonin receptor signaling. SIGNIFICANCE: Higher hippocampal 5HT2A receptor protein and potassium channel transcripts may reflect underlying mechanisms contributing to or resulting from prolonged PGES. Future studies with larger cohorts should assess functional analyses and additional brain regions to elucidate mechanisms underlying PGES and SUDEP risk