68 research outputs found
Detecting Wage Under-reporting Using a Double Hurdle Model
We estimate a double hurdle (DH) model of the Hungarian wage distribution assuming censoring at the minimum wage and wage under-reporting (i.e. compensation consisting of the minimum wage, subject to taxation, and an unreported cash supplement). We estimate the probability of under-reporting for minimum wage earners, simulate their genuine earnings and classify them and their employers as 'cheaters' and 'non-cheaters'. In the possession of the classification we check how cheaters and non-cheaters reacted to the introduction of a minimum social security contribution base, equal to 200 per cent of the minimum wage, in 2007. The findings suggest that cheaters were more likely to raise the wages of their minimum wage earners to 200 per cent of the minimum wage thereby reducing the risk of tax audit. Cheating firms also experienced faster average wage growth and slower output growth. The results suggest that the DH model is able to identify the loci of wage under-reporting with some precision.tax evasion, double hurdle model, Hungary
Diagnosztikus értékű-e a szénhidrátszegény transzferrin nem alkoholos zsírmájban? = Does carbohydrate deficient transferrin have diagnostic value in non-alcoholic fatty liver disease?
A nem alkoholos zsírmáj (NAFLD) szerzett metabolikus májbetegség, amely a májsejtekben a trigliceridek lerakódása következtében jön létre és együtt jár nekrobiotikus gyulladásos reakcióval, fibrosissal és akár májcirrhosissal. Alkoholos eredetű zsírmájtól (AFLD) való elkülönítése néha gondot okoz. Az anamnézis ismeretében ez egyszerűbb, de ha az egyén az alkoholfogyasztásra vonatkozóan nem nyilatkozik, az elkülönítés nehézségbe ütközhet.
Célkitűzés:
Célunk volt a szénhidrátszegény transzferrin (CDT) meghatározása nem alkoholos zsírmájban szenvedő betegeknél, valamint a vizsgálat során észlelt kiugró értékek elemzése a betegek anamnézise alapján.
Betegek és módszerek:
A vizsgált csoportot 39 beteg alkotta, akiknél a hasi ultrahangvizsgálat a zsírmájra jellemző alaki eltérést mutatott. Közülük 21 nőbeteg és 18 férfi beteg volt. A betegeknél a CDT mérésén kívül meghatároztuk a testtömegindex- (BMI-) értéket és a HOMA-indexet.
Eredmények:
A betegek életkorában nem találtunk szignifikáns eltérést a nemek között. A CDT átlagértéke 2,39±0,52% volt, a férfiaknál 2,51±0,61, a nőknél 2,28±0,4; a nemek szerinti csoportfelosztásnál nem találtunk szignifikáns eltérést a csoportok között. A CDT-értékek eloszlása normális mintázatot mutatott. A BMI a túlsúlyosság tartományába esett, és ennél az értéknél sem volt szignifikáns eltérés a nemek között.
Következtetés:
Eredményeink alapján is valószínűsíthető, hogy az NAFLD és az AFLD a CDT% értéke alapján is elkülöníthető, és ez az érték a gamma-glutamil-transzpeptidáz értékénél specifikusabb markernek tekinthető, de esetében is fontos az anamnézis, az egyéb tényezők figyelembevétele és a lehető legtüzetesebb tisztázása.
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Non-alcoholic fatty liver disease (NAFLD) is an acquired metabolic liver disease in the consequence of triglyceride accumulation within liver cells. It is accompanied by necrobiotic inflammatory reaction, fibrosis and also by liver cirrhosis. Its distinction from alcoholic fatty liver disease (AFLD) can be difficult. Clear anamnesis may help, but if the patient does not inform us about the alcohol consumption, the differentiation is not easy.
Aim:
Our aim was to determine the value of carbohydrate deficient transferrin (CDT) in patients with non-alcoholic fatty liver disease, as well as to analyze the background of high CDT values, according to the anamnesis.
Patients and methods:
39 patients (21 female and 18 male) with ultrasound signs of fatty liver disease were studied. CDT, body mass index (BMI) and HOMA index were determined.
Results:
Mean value of CDT was: 2.39±0.52% (in male 2.51±0.61, in female 2.28±0.4). No significant difference was found among the two sexes. The diversity of CDT values was normal. The value of BMI belonged to the overweight area without any significant difference between the two sexes.
Conclusion:
On the basis of the results, NAFLD and AFLD can be differentiated according to the CDT value, and this value could be a higher specific value than the activity of gammaglutamyl transpeptidase, however, anamnesis and other factors are as well very important in achieving the correct diagnosis
Heterogeneous impact of the COVID-19 pandemic on lung, colorectal and breast cancer incidence in Hungary: results from time series and panel data models
OBJECTIVE: During the COVID-19 pandemic, health system resources were reallocated to provide care for patients with COVID-19, limiting access for others. Patients themselves also constrained their visits to healthcare providers. In this study, we analysed the heterogeneous effects of the pandemic on the new diagnoses of lung, colorectal and breast cancer in Hungary. DESIGN: Time series and panel models of quarterly administrative data, disaggregated by gender, age group and district of residence. PARTICIPANTS: Data for the whole population of Hungary between the first quarter of 2017 and the second quarter of 2021. MAIN OUTCOME MEASURES: Number of patients newly diagnosed with lung, colorectal and breast cancer, defined as those who were hospitalised with the appropriate primary International Classification of Diseases Tenth Revision diagnosis code but had not had hospital encounters with such a code within the previous 5 years. RESULTS: The incidence of lung, colorectal and breast cancer decreased by 14.4% (95% CI 10.8% to 17.8%), 19.9% (95% CI 12.2% to 26.9%) and 15.5% (95% CI 2.5% to 27.0%), respectively, during the examined period of the pandemic, with different time patterns across cancer types. The incidence decreased more among people at least 65 years old than among the younger (p<0.05 for lung cancer and p<0.1 for colorectal cancer). At the district level, both the previously negative income gap in lung cancer incidence and the previously positive income gap in breast cancer incidence significantly narrowed during the pandemic (p<0.05). CONCLUSIONS: The decline in new cancer diagnoses, caused by a combination of supply-side and demand-side factors, suggests that some cancer cases have remained hidden. It calls for action by policy makers to engage individuals with high risk of cancer more in accessing healthcare services, to diagnose the disease early and to prepare for effective management of patient pathways from diagnosis to survival or end-of-life care
Strikingly high effects of geographic location on fauna and flora of European agricultural grasslands
International audienceWild bees, spiders, earthworms and plants contribute considerably to biodiversity in grasslands and fulfil vital ecological functions. They also provide valuable services to agriculture, such as pollination, pest control and maintenance of soil quality. We investigated the responses of wild bees, spiders, earthworms and plants to geographic location, agricultural management and surrounding landscape variables using a dataset of grassland fields within 88 farms in six European regions. Regions and taxonomic groups were selected to have contrasting properties, in order to capture the multiple facets of European grasslands. Geographic location alone had a dominant effect on the fauna and flora communities. Depending on the taxonomic group, various agricultural management and surrounding landscape variables alone had an additional significant effect on observed species richness, rarefied species richness and/or abundance, but it was always small. Bee species richness and abundance decreased with increasing number of mechanical operations (e.g. cutting). Observed spider species richness and abundance were unrelated to measured aspects of agricultural management or to surrounding landscape variables, whereas rarefied species richness showed significant relations to nitrogen input, habitat diversity and amount of grassland habitats in the surroundings. Earthworm abundance increased with increasing nitrogen input but earthworm species richness did not. Observed plant species richness decreased with increasing nitrogen input and increased when there were woody habitats in the surroundings. Rarefied plant species richness decreased with mechanical operations. Investigating multiple regions, taxonomic groups and aspects of fauna and flora communities allowed identifying the main factors structuring communities, which is necessary for designing appropriate conservation measures and ensuring continued supply of services
High-throughput sequence analysis of variants of human cytomegalovirus strains Towne and AD169
The genomes of commonly used variants of human cytomegalovirus (HCMV) strains Towne and AD169 each contain a substantial mutation in which a region (UL/b′) at the right end of the long unique region has been replaced by an inverted duplication of a region from the left end of the genome. Using high-throughput technology, we have sequenced HCMV strain Towne (ATCC VR-977) and confirmed the presence of two variants, one exhibiting the replacement in UL/b′ and the other intact in this region. Both variants are mutated in genes RL13, UL1, UL40, UL130, US1 and US9. We have also sequenced a novel AD169 variant (varUC) that is intact in UL/b′ except for a small deletion that affects genes UL144, UL142, UL141 and UL140. Like other AD169 variants, varUC is mutated in genes RL5A, RL13, UL36 and UL131A. A subpopulation of varUC contains an additional deletion affecting genes IRS1, US1 and US2
Photocycle alteration and increased enzymatic activity in genetically modified photoactivated adenylate cyclase OaPAC
Photoactivated adenylate cyclases (PACs) are light activated enzymes that combine blue light sensing capacity with the ability to convert ATP to cAMP and pyrophosphate (PPi) in a light-dependent manner. In most of the known PACs blue light regulation is provided by a blue light sensing domain using flavin which undergoes a structural reorganization after blue-light absorption. This minor structural change then is translated toward the C-terminal of the protein, inducing a larger conformational change that results in the ATP conversion to cAMP. As cAMP is a key second messenger in numerous signal transduction pathways regulating various cellular functions, PACs are of great interest in optogenetic studies. The optimal optogenetic device must be “silent” in the dark and highly responsive upon light illumination. PAC from Oscillatoria acuminata is a very good candidate as its basal activity is very small in the dark and the conversion rates increase 20-fold upon light illumination. We studied the effect of replacing D67 to N, in the blue light using flavin domain. This mutation was found to accelerate the primary electron transfer process in the photosensing domain of the protein, as has been predicted. Furthermore, it resulted in a longer lived signaling state, which was formed with a lower quantum yield. Our studies show that the overall effects of the D67N mutation lead to a slightly higher conversion of ATP to cAMP, which points in the direction that by fine tuning the kinetic properties more responsive PACs and optogenetic devices can be generated
Host Immune Responses to a Viral Immune Modulating Protein: Immunogenicity of Viral Interleukin-10 in Rhesus Cytomegalovirus-Infected Rhesus Macaques
, consistent with a central role for rhcmvIL-10 during acute virus-host interactions. Since cmvIL-10 and rhcmvIL-10 are extremely divergent from the cIL-10 of their respective hosts, vaccine-mediated neutralization of their function could inhibit establishment of viral persistence without inhibition of cIL-10.As a prelude to evaluating cmvIL-10-based vaccines in humans, the rhesus macaque model of HCMV was used to interrogate peripheral and mucosal immune responses to rhcmvIL-10 in RhCMV-infected animals. ELISA were used to detect rhcmvIL-10-binding antibodies in plasma and saliva, and an IL-12-based bioassay was used to quantify plasma antibodies that neutralized rhcmvIL-10 function. rhcmvIL-10 is highly immunogenic during RhCMV infection, stimulating high avidity rhcmvIL-10-binding antibodies in the plasma of all infected animals. Most infected animals also exhibited plasma antibodies that partially neutralized rhcmvIL-10 function but did not cross-neutralize the function of rhesus cIL-10. Notably, minimally detectable rhcmvIL-10-binding antibodies were detected in saliva.This study demonstrates that rhcmvIL-10, as a surrogate for cmvIL-10, is a viable vaccine candidate because (1) it is highly immunogenic during natural RhCMV infection, and (2) neutralizing antibodies to rhcmvIL-10 do not cross-react with rhesus cIL-10. Exceedingly low rhcmvIL-10 antibodies in saliva further suggest that the oral mucosa, which is critical in RhCMV natural history, is associated with suboptimal anti-rhcmvIL-10 antibody responses
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