Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 174
Filtrar
1.
BMJ Open Diabetes Res Care ; 12(1)2024 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-38267204

RESUMO

INTRODUCTION: Type 2 diabetes mellitus is a risk factor for severe COVID-19 infection and is associated with increased risk of complications. The present study aimed to investigate effectiveness and persistence of different COVID vaccines in persons with or without diabetes during the Delta wave in Hungary. RESEARCH DESIGN AND METHODS: Data sources were the national COVID-19 registry data from the National Public Health Center and the National Health Insurance Fund on the total Hungarian population. The adjusted incidence rate ratios and corresponding 95% CIs were derived from a mixed-effect negative binomial regression model. RESULTS: A population of 672 240 cases with type 2 diabetes and a control group of 2 974 102 non-diabetic persons free from chronic diseases participated. Unvaccinated elderly persons with diabetes had 2.68 (95% CI 2.47 to 2.91) times higher COVID-19-related mortality rate as the 'healthy' controls. Primary immunization effectively equalized the risk of COVID-19 mortality between the two groups. Vaccine effectiveness declined over time, but the booster restored the effectiveness against mortality to over 90%. The adjusted vaccine effectiveness of the primary Pfizer-BioNTech against infection in the 14-120 days of postvaccination period was 71.6 (95% CI 66.3 to 76.1)% in patients aged 65-100 years with type 2 diabetes and 64.52 (95% CI 59.2 to 69.2)% in the controls. Overall, the effectiveness tended to be higher in individuals with diabetes than in controls. The booster vaccines could restore vaccine effectiveness to over 80% concerning risk of infection (eg, patients with diabetes aged 65-100 years: 89.1 (88.1-89.9)% with Pfizer-on-Pfizer, controls 65-100 years old: 86.9 (85.8-88.0)% with Pfizer-on-Pfizer, or patients with diabetes aged 65-100 years: 88.3 (87.2-89.2)% with Pfizer-on-Sinopharm, controls 65-100 years old: 87.8 (86.8-88.7)% with Pfizer-on-Sinopharm). CONCLUSIONS: Our data suggest that people with type 2 diabetes may have even higher health gain when getting vaccinated as compared with non-diabetic persons, eliminating the marked, COVID-19-related excess risk of this population. Boosters could restore protection.


Assuntos
COVID-19 , Diabetes Mellitus Tipo 2 , Idoso , Humanos , Idoso de 80 Anos ou mais , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Vacinas contra COVID-19/uso terapêutico , Hungria/epidemiologia , SARS-CoV-2 , COVID-19/complicações , COVID-19/epidemiologia , COVID-19/prevenção & controle
2.
Vaccines (Basel) ; 11(12)2023 Nov 29.
Artigo em Inglês | MEDLINE | ID: mdl-38140190

RESUMO

Although the COVID-19 pandemic is profoundly changing, data on the effect of vaccination and duration of protection against infection and severe disease can still be advantageous, especially for patients with COPD, who are more vulnerable to respiratory infections. The Hungarian COVID-19 registry was retrospectively investigated for risk of infection and hospitalization by time since the last vaccination, and vaccine effectiveness (VE) was calculated in adults with COPD diagnosis and an exact-matched control group during the Delta variant of concern (VOC) wave in Hungary (September-December 2021). For the matching, sex, age, major co-morbidities, vaccination status, and prior infection data were obtained on 23 August 2021. The study population included 373,962 cases divided into COPD patients (age: 66.67 ± 12.66) and a 1:1 matched group (age: 66.73 ± 12.67). In both groups, the female/male ratio was 52.2:47.7, respectively. Among the unvaccinated, there was no difference between groups in risk for infection or hospitalization. Regarding vaccinated cases, in the COPD group, a slightly faster decline in effectiveness was noted for hospitalization prevention, although in both groups, the vaccine lost its significant effect between 215 and 240 days after the last dose of vaccination. Based on a time-stratified multivariate Cox analysis of the vaccinated cases, the hazard was constantly higher in the COPD group, with an HR of 1.09 (95%: 1.05-1.14) for infection and 1.87 (95% CI: 1.59-2.19) for hospitalization. In our study, COPD patients displayed lower vaccine effectiveness against SARS-CoV-2 infection and hospitalization but a similar waning trajectory, as vaccines lost their preventive effect after 215 days. These data emphasize revaccination measures in the COPD patient population.

3.
BMC Genomics ; 24(1): 9, 2023 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-36624381

RESUMO

BACKGROUND: German-derived ethnicities are one of the largest ethnic groups in Hungary, dating back to the formation of the Kingdom of Hungary, which took place at the beginning of the 11th century. Germans arrived in Hungary in many waves. The most significant immigration wave took place following the collapse of the Ottoman Empire in East-Central Europe which closed the 150 year long Ottoman occupation. To date, there are no comprehensive genome-wide studies investigating the genetic makeup of the Danube Swabians. Here we analyzed 47 Danube Swabian samples collected from elderly Swabian individuals living in the Dunaszekcso-Bár area, in Danube side villages of Southwest Hungary. These Swabians, according to self-declaration, did not admix with other ethnic groups for 3-6 succeeding generations. Using Illumina Infinium 720 K Beadchip genotype data, we applied allele frequency-based and haplotype-based genome-wide marker data analyses to investigate the ancestry and genetic composition of the collected Danube Swabian samples. RESULTS: Haplotype-based analyses like identity by descent segment analysis show that the investigated Danube Swabians possess significant German and other West European ancestry, but their Hungarian ancestry is also prominent. Our results suggest that their main source of ancestry can be traced back to Western Europe, presumably to the region of Germany. CONCLUSION: This is the first analysis of Danube Swabian population samples based on genome-wide autosomal data. Our results establish the basis for conducting further comprehensive research on Danube Swabians and on other German ethnicities of the Carpathian basin, which can help reconstruct their origin, and identify their major archaic genomic patterns.


Assuntos
Etnicidade , Genética Populacional , Humanos , Idoso , Frequência do Gene , Etnicidade/genética , Europa (Continente) , Hungria
4.
Heliyon ; 8(11): e11731, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36425424

RESUMO

The Hunyadi family is one of the most influential families in the history of Central Europe in the 14th-16th centuries. The family's prestige was established by Johannes Hunyadi, a Turk-beater who rose to the position of governor of the Kingdom of Hungary. His second son, Matthias Hunyadi, became the elected ruler of the Kingdom of Hungary in 1458. The Hunyadi family had unknown origin. Moreover, Matthias failed to found a dynasty because of lacking a legitimate heir and his illegitimate son Johannes Corvinus was unable to obtain the crown. His grandson, Christophorus Corvinus, died in childhood, thus the direct male line of the family ended. In the framework of on interdisciplinary research, we have determined the whole genome sequences of Johannes Corvinus and Christophorus Corvinus by next-generation sequencing technology. Both of them carried the Y-chromosome haplogroup is E1b1b1a1b1a6a1c ∼, which is widespread in Eurasia. The father-son relationship was verified using the classical STR method and whole genome data. Christophorus Corvinus belongs to the rare, sporadically occurring T2c1+146 mitochondrial haplogroup, most frequent around the Mediterranean, while his father belongs to the T2b mitochondrial haplogroup, widespread in Eurasia, both are consistent with the known origin of the mothers. Archaeogenomic analysis indicated that the Corvinus had an ancient European genome composition. Based on the reported genetic data, it will be possible to identify all the other Hunyadi family member, whose only known grave site is known, but who are resting assorted with several other skeletons.

5.
Pathol Oncol Res ; 28: 1610668, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36147657

RESUMO

Background: Assessment of population-based cancer survival may provide the most valuable feedback about the effectiveness of oncological surveillance and treatment. Aims: Based on the database of the Hungarian National Cancer Registry, standardized incidence rates of lung, breast, colorectal, prostate and cervical cancer were compared to standardized mortality data of the Hungarian Central Statistical Office in the period between 2001 and 2015. Then survival analysis was performed on cleansed database. Results: The incidence of colorectal, breast and prostate cancer increased, while standardized rates of lung and cervical cancer declined. The survival of colorectal, breast and prostate cancer showed improvement. Contrarily, lung cancer exhibited a mild decline, while that of cervical cancer did not change significantly. In earlier stages survival was improved among almost every studied tumor type, while in advanced stages improvement was not observed. Comparison of stage distribution revealed that in the 2011-2015 period colorectal, breast and prostate cancer cases were diagnosed at earlier stages, while lung and cervical cancer patients were typically discovered at more advanced stages. Discussion: The outcome of advanced cancer treatments is better in earlier stages, which highlighted the importance of screening network. However, growth of oncological treatment costs with longer patient survival imposes a constantly increasing burden on society.


Assuntos
Neoplasias da Mama , Neoplasias Colorretais , Neoplasias , Neoplasias da Próstata , Neoplasias do Colo do Útero , Neoplasias da Mama/epidemiologia , Neoplasias Colorretais/epidemiologia , Feminino , Humanos , Hungria/epidemiologia , Incidência , Masculino , Neoplasias/epidemiologia , Neoplasias da Próstata/epidemiologia , Sistema de Registros , Taxa de Sobrevida , Neoplasias do Colo do Útero/epidemiologia
6.
Orv Hetil ; 163(37): 1481-1489, 2022 Sep 11.
Artigo em Húngaro | MEDLINE | ID: mdl-36088625

RESUMO

Introduction: In international comparison, Hungary is in the forefront of cancer incidence and mortality statistics. Based on paper-based death certificates, mortality statistics are compiled by the Hungarian Central Statistical Office, while population-based measures of cancer incidences are performed by the Hungarian National Cancer Registry. Objective: Linking the records of these two independent databases can highlight their weaknesses and provide an opportunity to reconcile and verify collected data, which may emphasize the need to expand current data exchange protocols. Method: Based on the Hungarian unique health care insurance ID, the mortality database of the Hungarian Central Statistical Office between 2012 and 2020 was compared with the data of the Hungarian National Cancer Registry from 2001 to 2020. Deaths in 2018, in particular those related to lung cancer, were examined in more depth to demonstrate the biases resulting from erroneous data collection. Results: The mortality database of the Hungarian Central Statistical Office contained 32 586 cases with an underlying cause of death of malignant neoplasm for 2018, of which 29 970 were identified in the Hungarian National Cancer Registry. Out of the 8716 deaths coded to lung cancer, 7957 corresponding individuals were also found in the Registry. From the matches, 7381 cases were marked with lung cancer in the Hungarian National Cancer Registry. For the remaining 576 cases, the Registry recorded different types of cancers, of which in 69 cases with lung metastasis. Discussion: The differences between the two databases may be caused by methodological differences in data collection, incomplete, inaccurate reporting and differences in processing algorithms. Nevertheless, the majority of the data in the examined databases were found to be appropriate for epidemiological studies. Conclusion: Based on the outcomes of the present analysis, a revision of the data transfer between the two institutions is in order. The introduction of electronic Death certificate recording and validity checks are expected to improve the reliability of ID numbers and may shorten data processing times.


Assuntos
Neoplasias Pulmonares , Bases de Dados Factuais , Humanos , Incidência , Neoplasias Pulmonares/epidemiologia , Sistema de Registros , Reprodutibilidade dos Testes
7.
Front Immunol ; 13: 919408, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35935993

RESUMO

Background: In late 2021, the pandemic wave was dominated by the Delta SARS-CoV-2 variant in Hungary. Booster vaccines were offered for the vulnerable population starting from August 2021. Methods: The nationwide HUN-VE 3 study examined the effectiveness and durability of primary immunization and single booster vaccinations in the prevention of SARS-CoV-2 infection, Covid-19 related hospitalization and mortality during the Delta wave, compared to an unvaccinated control population without prior SARS-CoV-2 infection. Results: The study population included 8,087,988 individuals who were 18-100 years old at the beginning of the pandemic. During the Delta wave, after adjusting for age, sex, calendar day, and chronic diseases, vaccine effectiveness (VE) of primary vaccination against registered SARS-CoV-2 infection was between 11% to 77% and 18% to 79% 14-120 days after primary immunization in the 16-64 and 65-100 years age cohort respectively, while it decreased to close to zero in the younger age group and around 40% or somewhat less in the elderly after 6 months for almost all vaccine types. In the population aged 65-100 years, we found high, 88.1%-92.5% adjusted effectiveness against Covid-19 infection after the Pfizer-BioNTech, and 92.2%-95.6% after the Moderna booster dose, while Sinopharm and Janssen booster doses provided 26.5%-75.3% and 72.9%-100.0% adjusted VE, respectively. Adjusted VE against Covid-19 related hospitalization was high within 14-120 days for Pfizer-BioNTech: 76.6%, Moderna: 83.8%, Sputnik-V: 78.3%, AstraZeneca: 73.8%, while modest for Sinopharm: 45.7% and Janssen: 26.4%. The waning of protection against Covid-19 related hospitalization was modest and booster vaccination with mRNA vaccines or the Janssen vaccine increased adjusted VE up to almost 100%, while the Sinopharm booster dose proved to be less effective. VE against Covid-19 related death after primary immunization was high or moderate: for Pfizer-BioNTech: 81.5%, Moderna: 93.2%, Sputnik-V: 100.0%, AstraZeneca: 84.8%, Sinopharm: 58.6%, Janssen: 53.3%). VE against this outcome also showed a moderate decline over time, while booster vaccine types restored effectiveness up to almost 100%, except for the Sinopharm booster. Conclusions: The HUN-VE 3 study demonstrated waning VE with all vaccine types for all examined outcomes during the Delta wave and confirmed the outstanding benefit of booster vaccination with the mRNA or Janssen vaccines, and this is the first study to provide clear and comparable effectiveness results for six different vaccine types after primary immunization against severe during the Delta pandemic wave.


Assuntos
COVID-19 , Vacinas , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19/epidemiologia , COVID-19/prevenção & controle , Humanos , Hungria/epidemiologia , Lactente , Pessoa de Meia-Idade , Pandemias , SARS-CoV-2 , Adulto Jovem
8.
Pathol Oncol Res ; 28: 1610377, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35783360

RESUMO

This text is based on the recommendations accepted by the 4th Hungarian Consensus Conference on Breast Cancer, modified on the basis of the international consultation and conference within the frames of the Central-Eastern European Academy of Oncology. The recommendations cover non-operative, intraoperative and postoperative diagnostics, determination of prognostic and predictive markers and the content of cytology and histology reports. Furthermore, they address some specific issues such as the current status of multigene molecular markers, the role of pathologists in clinical trials and prerequisites for their involvement, and some remarks about the future.


Assuntos
Neoplasias da Mama , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Feminino , Humanos , Hungria , Mastectomia , Oncologia , Prognóstico
9.
Front Immunol ; 13: 905585, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35812442

RESUMO

Background: In Hungary, the pandemic waves in late 2021 and early 2022 were dominated by the Delta and Omicron SARS-CoV-2 variants, respectively. Booster vaccines were offered with one or two doses for the vulnerable population during these periods. Methods and Findings: The nationwide HUN-VE 2 study examined the effectiveness of primary immunization, single booster, and double booster vaccination in the prevention of Covid-19 related mortality during the Delta and Omicron waves, compared to an unvaccinated control population without prior SARS-CoV-2 infection during the same study periods. The risk of Covid-19 related death was 55% lower during the Omicron vs. Delta wave in the whole study population (n=9,569,648 and n=9,581,927, respectively; rate ratio [RR]: 0.45, 95% confidence interval [CI]: 0.44-0.48). During the Delta wave, the risk of Covid-19 related death was 74% lower in the primary immunized population (RR: 0.26; 95% CI: 0.25-0.28) and 96% lower in the booster immunized population (RR: 0.04; 95% CI: 0.04-0.05), vs. the unvaccinated control group. During the Omicron wave, the risk of Covid-19 related death was 40% lower in the primary immunized population (RR: 0.60; 95% CI: 0.55-0.65) and 82% lower in the booster immunized population (RR: 0.18; 95% CI: 0.16-0.2) vs. the unvaccinated control group. The double booster immunized population had a 93% lower risk of Covid-19 related death compared to those with only one booster dose (RR: 0.07; 95% CI. 0.01-0.46). The benefit of the second booster was slightly more pronounced in older age groups. Conclusions: The HUN-VE 2 study demonstrated the significantly lower risk of Covid-19 related mortality associated with the Omicron vs. Delta variant and confirmed the benefit of single and double booster vaccination against Covid-19 related death. Furthermore, the results showed the additional benefit of a second booster dose in terms of SARS-CoV-2 infection and Covid-19 related mortality.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Imunização Secundária , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19/mortalidade , COVID-19/prevenção & controle , Vacinas contra COVID-19/administração & dosagem , Humanos , Hungria/epidemiologia , Pessoa de Meia-Idade , Pandemias , Estudos Retrospectivos , SARS-CoV-2 , Eficácia de Vacinas , Adulto Jovem
10.
Vaccines (Basel) ; 10(7)2022 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-35891151

RESUMO

(1) Background: SARS-CoV-2 infections are associated with an increased risk of hospital admissions especially in the elderly (age ≥ 65 years) and people with multiple comorbid conditions. (2) Methods: We investigated the effect of additional booster vaccinations following the primary vaccination series of mRNA, inactivated whole virus, or vector vaccines on infections with the SARS-CoV-2 delta variant in the total Hungarian elderly population. The infection, hospital admission, and 28-day all-cause mortality of elderly population was assessed. (3) Results: A total of 1,984,176 people fulfilled the criteria of elderly including 299,216 unvaccinated individuals, while 1,037,069 had completed primary vaccination and 587,150 had obtained an additional booster. The primary vaccination series reduced the risk of infection by 48.88%, the risk of hospital admission by 71.55%, and mortality by 79.87%. The booster vaccination had an additional benefit, as the risk of infection, hospital admission, and all-cause mortality were even lower (82.95%; 92.71%; and 94.24%, respectively). Vaccinated patients needing hospitalization suffered significantly more comorbid conditions, indicating a more vulnerable population. (4) Conclusions: Our data confirmed that the primary vaccination series and especially the booster vaccination significantly reduced the risk of the SARS-CoV-2 delta-variant-associated hospital admission and 28-day all-cause mortality in the elderly despite significantly more severe comorbid conditions.

11.
Magy Onkol ; 66(2): 94-99, 2022 Jun 20.
Artigo em Húngaro | MEDLINE | ID: mdl-35724385

RESUMO

Skin melanoma is not among malignancies with the highest incidences and mortalities worldwide; however, the observed constant increase in newly diagnosed cases is troublesome. According to the database of the Hungarian Cancer Registry, the number of newly reported cases doubled between 2001 and 2019, which is consistent with international data. Notwithstanding, within the same interval, Hungarian mortality did not change significantly according to the database of the Hungarian Statistical Office, which is in contrast to international trends. The increasing incidence together with unchanging mortality resulted in better survival rates and hence more favorable follow-up data in our country. Advancements in secondary prevention programs and better efficacy of modern therapeutic interventions in the last decade may have contributed to the observed improvement in the survival rates of Hungarian melanoma patients.


Assuntos
Melanoma , Neoplasias Cutâneas , Humanos , Hungria/epidemiologia , Incidência , Melanoma/epidemiologia , Neoplasias Cutâneas/epidemiologia , Neoplasias Cutâneas/patologia , Taxa de Sobrevida
13.
Front Genet ; 13: 841769, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35419037

RESUMO

Genome-wide genotype data from 48 carefully selected population samples of Transylvania-living Szeklers and non-Szekler Hungarians were analyzed by comparative analysis. Our analyses involved contemporary Hungarians living in Hungary, other Europeans, and Eurasian samples counting 530 individuals altogether. The source of the Szekler samples was the commune of Korond, Transylvania. The analyzed non-Szekler Hungarian samples were collected from villages with a history dating back to the era of the Árpád Dynasty. Population structure by principal component analysis and ancestry analysis also revealed a great within-group similarity of the analyzed Szeklers and non-Szekler Transylvanian Hungarians. These groups also showed similar genetic patterns with each other. Haplotype analyses using identity-by-descent segment discovering tools showed that average pairwise identity-by-descent sharing is similar in the investigated populations, but the Korond Szekler samples had higher average sharing with the Hungarians from Hungary than non-Szekler Transylvanian Hungarians. Average sharing results showed that both groups are isolated compared to other Europeans, and pointed out that the non-Szekler Transylvanian Hungarian inhabitants of the investigated Árpád Age villages are more isolated than investigated Szeklers from Korond. This was confirmed by our autozygosity analysis as well. Identity-by-descent segment analyses and 4-population tests also confirmed that these Hungarian-speaking Transylvanian ethnic groups are strongly related to Hungarians living in Hungary.

14.
Magy Onkol ; 66(1): 4-10, 2022 Mar 28.
Artigo em Húngaro | MEDLINE | ID: mdl-35343969

RESUMO

The incidence and mortality of malignant diseases show constant increase worldwide. Proper epidemiological data may establish the planning and development of oncological network, which is provided by population-based registries (in Hungary: National Cancer Registry). The quality of the reported data determines the reliability of the Registry. Recorded medical codes during everyday physician-patient encounters are part of the official documentation as well as a permanent imprint of the medical activity in the Registry's database. Uncritical coding degrades the quality of epidemiological data, moreover, leads to unnecessary patient stigmatization, which may be the base of legal procedure against the physician who authenticated the false code. However, neither graduate nor postgraduate medical training focus on coding. In addition, hospitals apply obsolete versions of coding systems which does not follow developments in medicine. The aim of the present review is presentation of proper coding in oncology, which may contribute to avoid that kind of basic professional pitfalls, and improve quality of medical activity.


Assuntos
Oncologia , Neoplasias , Bases de Dados Factuais , Humanos , Neoplasias/epidemiologia , Neoplasias/terapia , Sistema de Registros , Reprodutibilidade dos Testes
15.
Clin Microbiol Infect ; 28(3): 398-404, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34838783

RESUMO

OBJECTIVES: The Hungarian vaccination campaign was conducted with five different vaccines during the third wave of the coronavirus disease 2019 (COVID-19) pandemic in 2021. This observational study (HUN-VE: Hungarian Vaccine Effectiveness) estimated vaccine effectiveness against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and COVID-19-related mortality in 3.7 million vaccinated individuals. METHODS: Incidence rates of SARS-CoV-2 infection and COVID-19-related mortality were calculated using data from the National Public Health Centre surveillance database. Estimated vaccine effectiveness was calculated as 1 - incidence rate ratio ≥7 days after the second dose for each available vaccine versus an unvaccinated control group using mixed-effect negative binomial regression controlling for age, sex and calendar day. RESULTS: Between 22 January 2021 and 10 June 2021, 3 740 066 Hungarian individuals received two doses of the BNT162b2 (Pfizer-BioNTech), HB02 (Sinopharm), Gam-COVID-Vac (Sputnik-V), AZD1222 (AstraZeneca), or mRNA-1273 (Moderna) vaccines. Incidence rates of SARS-CoV-2 infection and COVID-19-related death were 1.73-9.3/100 000 person-days and 0.04-0.65/100 000 person-days in the fully vaccinated population, respectively. Estimated adjusted effectiveness varied between 68.7% (95% CI 67.2%-70.1%) and 88.7% (95% CI 86.6%-90.4%) against SARS-CoV-2 infection, and between 87.8% (95% CI 86.1%-89.4%) and 97.5% (95% CI 95.6%-98.6%) against COVID-19-related death, with 100% effectiveness in individuals aged 16-44 years for all vaccines. CONCLUSIONS: Our observational study demonstrated the high or very high effectiveness of five different vaccines in the prevention SARS-CoV-2 infection and COVID-19-related death.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Adolescente , Adulto , Vacina BNT162 , COVID-19/epidemiologia , COVID-19/prevenção & controle , ChAdOx1 nCoV-19 , Humanos , Hungria/epidemiologia , SARS-CoV-2 , Adulto Jovem
16.
Proc Natl Acad Sci U S A ; 118(45)2021 11 09.
Artigo em Inglês | MEDLINE | ID: mdl-34737229

RESUMO

Basal-like breast cancer (BLBC) is the most aggressive subtype of breast tumors with poor prognosis and limited molecular-targeted therapy options. We show that BLBC cells have a high Cys demand and reprogrammed Cys metabolism. Patient-derived BLBC tumors from four different cohorts exhibited elevated expression of the transsulfuration enzyme cystathione ß-synthetase (CBS). CBS silencing (shCBS) made BLBC cells less invasive, proliferate slower, more vulnerable to oxidative stress and cystine (CySSCy) deprivation, prone to ferroptosis, and less responsive to HIF1-α activation under hypoxia. shCBS xenograft tumors grew slower than controls and exhibited impaired angiogenesis and larger necrotic areas. Sulfur metabolite profiling suggested that realigned sulfide/persulfide-inducing functions of CBS are important in BLBC tumor progression. Supporting this, the exclusion of serine, a substrate of CBS for producing Cys but not for producing sulfide/persulfide, did not exacerbate CySSCy deprivation-induced ferroptosis in shCBS BLBC cells. Impaired Tyr phosphorylation was detected in shCBS cells and xenografts, likely due to persulfidation-inhibited phosphatase functions. Overexpression of cystathione γ-lyase (CSE), which can also contribute to cellular sulfide/persulfide production, compensated for the loss of CBS activities, and treatment of shCBS xenografts with a CSE inhibitor further blocked tumor growth. Glutathione and protein-Cys levels were not diminished in shCBS cells or xenografts, but levels of Cys persulfidation and the persulfide-catabolizing enzyme ETHE1 were suppressed. Finally, expression of enzymes of the oxidizing Cys catabolism pathway was diminished, but expression of the persulfide-producing CARS2 was elevated in human BLBC tumors. Hence, the persulfide-producing pathways are major targetable determinants of BLBC pathology that could be therapeutically exploited.


Assuntos
Cistationina beta-Sintase/metabolismo , Cisteína/metabolismo , Neoplasias de Mama Triplo Negativas/enzimologia , Animais , Estudos de Coortes , Progressão da Doença , Feminino , Ferroptose , Humanos , Camundongos SCID , Neovascularização Patológica , Estresse Oxidativo , Sulfetos/metabolismo
17.
Mol Oncol ; 15(10): 2507-2543, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34515408

RESUMO

Key stakeholders from the cancer research continuum met in May 2021 at the European Cancer Research Summit in Porto to discuss priorities and specific action points required for the successful implementation of the European Cancer Mission and Europe's Beating Cancer Plan (EBCP). Speakers presented a unified view about the need to establish high-quality, networked infrastructures to decrease cancer incidence, increase the cure rate, improve patient's survival and quality of life, and deal with research and care inequalities across the European Union (EU). These infrastructures, featuring Comprehensive Cancer Centres (CCCs) as key components, will integrate care, prevention and research across the entire cancer continuum to support the development of personalized/precision cancer medicine in Europe. The three pillars of the recommended European infrastructures - namely translational research, clinical/prevention trials and outcomes research - were pondered at length. Speakers addressing the future needs of translational research focused on the prospects of multiomics assisted preclinical research, progress in Molecular and Digital Pathology, immunotherapy, liquid biopsy and science data. The clinical/prevention trial session presented the requirements for next-generation, multicentric trials entailing unified strategies for patient stratification, imaging, and biospecimen acquisition and storage. The third session highlighted the need for establishing outcomes research infrastructures to cover primary prevention, early detection, clinical effectiveness of innovations, health-related quality-of-life assessment, survivorship research and health economics. An important outcome of the Summit was the presentation of the Porto Declaration, which called for a collective and committed action throughout Europe to develop the cancer research infrastructures indispensable for fostering innovation and decreasing inequalities within and between member states. Moreover, the Summit guidelines will assist decision making in the context of a unique EU-wide cancer initiative that, if expertly implemented, will decrease the cancer death toll and improve the quality of life of those confronted with cancer, and this is carried out at an affordable cost.


Assuntos
Neoplasias , Qualidade de Vida , Europa (Continente)/epidemiologia , Humanos , Neoplasias/epidemiologia , Neoplasias/prevenção & controle , Medicina de Precisão , Pesquisa Translacional Biomédica
18.
Sci Rep ; 11(1): 19210, 2021 09 28.
Artigo em Inglês | MEDLINE | ID: mdl-34584164

RESUMO

The ancient Hungarians, "Madzsars", established their control of the Carpathian Basin in the late ninth century and founded the Hungarian Kingdom around 1000AD. The origin of the Magyars as a tribal federation has been much debated in the past. From the time of the conquest to the early fourteenth century they were ruled by descendants of the Arpad family. In order to learn more about the genetic origin of this family, we here analyzed the genome of Bela III one of the most prominent members of the early Hungarian dynasty that ruled the Hungarian Kingdom from 1172 to 1196. The Y-Chromosome of Bela III belongs to haplogroup R1a-Z2123 that is today found in highest frequency in Central Asia, supporting a Central Asian origin for the ruling lineage of the Hungarian kingdom. The autosomal DNA profile of Bela III, however, falls within the genetic variation of present-day east European populations. This is further supported through his mtDNA genome that belongs to haplogroup H, the most common European maternal lineage, but also found in Central Asia. However, we didn't find an exact haplotype match for Bela III. The typical autosomal and maternal Central Eastern European ancestry among Bela III autosomes might be best explained by consecutive intermarriage with local European ruling families.


Assuntos
DNA Antigo , Genética Populacional , Haplótipos , Povo Asiático/genética , Cromossomos Humanos Y/genética , DNA Mitocondrial/genética , Feminino , Humanos , Hungria , Masculino , Linhagem
20.
Eur J Hum Genet ; 29(1): 164-172, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-32636469

RESUMO

We set out to identify the origins of the Árpád Dynasty based on genome sequencing of DNA derived from the skeletal remains of Hungarian King Béla III (1172-1196) and eight additional individuals (six males, two females) originally interred at the Royal Basilica of Székesfehérvár. Y-chromosome analysis established that two individuals, Béla III and HU52 assign to haplogroups R-Z2125 whose distribution centres near South Central Asia with subsidiary expansions in the regions of modern Iran, the Volga Ural region and the Caucasus. Out of a cohort of 4340 individuals from these geographic areas, we acquired whole-genome data from 208 individuals derived for the R-Z2123 haplogroup. From these data we have established that the closest living kin of the Árpád Dynasty are R-SUR51 derived modern day Bashkirs predominantly from the Burzyansky and Abzelilovsky districts of Bashkortostan in the Russian Federation. Our analysis also reveals the existence of SNPs defining a novel Árpád Dynasty specific haplogroup R-ARP. Framed within the context of a high resolution R-Z2123 phylogeny, the ancestry of the first Hungarian royal dynasty traces to the region centering near Northern Afghanistan about 4500 years ago and identifies the Bashkirs as their closest kin, with a separation date between the two populations at the beginning of the first millennium CE.


Assuntos
Cromossomos Humanos Y/genética , Pessoas Famosas , Linhagem , Filogenia , Polimorfismo de Nucleotídeo Único , Feminino , Migração Humana , Humanos , Hungria , Masculino , Análise de Sequência de DNA/métodos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA