Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "neurodegenerative" wg kryterium: Temat


Tytuł:
Therapeutic garden design for patients with neurodegenerative diseases
Ogrody terapeutyczne dla pacjentow z chorobami neurodegradacyjnymi
Autorzy:
Olszewska, A. A.
Bil, J. S.
Powiązania:
https://bibliotekanauki.pl/articles/369363.pdf
Data publikacji:
2016
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Alzheimer's
architecture
dementia
design
garden
landscape
neurodegenerative
therapeutic
Alzheimer
architektura
demencja
krajobraz
neurodegeneracyjne
ogrody
projektowanie
terapeutyczne
Opis:
This paper explores the concept of therapeutic gardens surrounding healthcare institutions treating neurodegenerative diseases, such as Alzheimer’s and Dementias. It focuses on how the design of such spaces can address the specific needs of residents, and describes the recent studies concerning the most relevant guidelines for therapeutic garden design near hospitals, medical centers, and retirement homes. The literature study is compared with results of our recent study on the brain response to different landscapedesign features. According to which an outdoor space with a high level of design compatibility, inward space composition, a clear communication and signage system, while introducing archetypal elements and factoring several visual nuances, can be especially beneficial for patients with neurodegenerative diseases.
Niniejszy artykuł omawia koncepcję ogrodów terapeutycznych przy ośrodkach opieki dla pacjentów z chorobami neurodegeneracyjnymi, takimi jak choroba Alzheimera i demencje. Opisano sposób, w jaki projektowanie takich przestrzeni może wyjść na przeciw specyficznym potrzebom mieszkańców i opisuje najnowsze badania dotyczące wytycznych dla projektowania ogrodów w pobliżu szpitali, ośrodków medycznych i domów spokojnej starości. Przegląd literatury zestawiono z wynikami najnowszych badań na temat wpływu różnych rozwiązań zaprojektowanych w krajobrazie na aktywność mózgu. Zgodnie z tymi badaniami, przestrzenie charakteryzujące się zgodnością projektu, przejrzystym systemem komunikacji i sygnalizacji, wprowadzeniem elementów archetypowych oraz nacisk na szereg wizualnych niuansów, mogą być szczególnie korzystne dla pacjentów z chorobami neurodegeneracyjnymi.
Źródło:
Przestrzeń i Forma; 2016, 25; 259-270
1895-3247
2391-7725
Pojawia się w:
Przestrzeń i Forma
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tandemly repeated trinucleotides - comparative analysis
Autorzy:
Piwowar, Monika
Meus, Jan
Piwowar, Piotr
Wiśniowski, Zdzisław
Stefaniak, Justyna
Roterman, Irena
Powiązania:
https://bibliotekanauki.pl/articles/1041237.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
trinucleotide tandem repeats
microsatellites
neurodegenerative disease
Opis:
Characteristics of 64 possible tandem trinucleotide repeats (TSSR) from Homo sapiens (hs), Mus musculus (mm) and Rattus norvegicus (rn) genomes are presented. Comparative analysis of TSSR frequency depending on their repetitiveness and similarity of the TSSR length distributions is shown. Comparative analysis of TSSR sequence motifs and association between type of motif and its length (n) using ρ-coefficient method (quantitatively measuring the association between variables in contingency tables) is presented. These analyses were carried out in the context of neurodegenerative diseases based on trinucleotide tandems. The length of these tandems and their relation to other TSSR is estimated. It was found that the higher repetitiveness (n) the lower frequency of trinucleotides tandems. Differences between genomes under consideration, especially in longer than n=9 TSSR were discussed. A significantly higher frequency off A- and T-rich tandems is observed in the human genome (as well as in human mRNA). This observation also applies to mm and rn, although lower abundant in proportion to human genomes was found. The origin of elongation (or shortening) of TSSR seems to be neither frequency nor length dependent. The results of TSSR analysis presented in this work suggest that neurodegenerative disease-related microsatellites do not differ versus the other except the lower frequency versus the other TSSR. CAG occurs with relatively high frequency in human mRNA, although there are other TSSR with higher frequency that do not cause comparable disease disorders. It suggests that the mechanism of TSSR instability is not the only origin of neurodegenerative diseases.
Źródło:
Acta Biochimica Polonica; 2006, 53, 2; 279-287
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sub-cellular elemental imaging of human muscle tissues affected by neuromuscular diseases
Autorzy:
Śliż-Szpytna, Patrycja
Lankosz, Marek
Dudała, Joanna
Adamek, Dariusz
Radwanska, Edyta
Kwinta, Borys
Jakšić, Milko
Božičević Mihalić, Iva
Provatas, Georgios
Powiązania:
https://bibliotekanauki.pl/articles/2055672.pdf
Data publikacji:
2021
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
dystrophy
elemental analysis
myopathy
neurodegenerative diseases
PIXE
Opis:
Various types of neuromuscular diseases differ in symptoms, pathology, and clinical picture but one of their common elements is muscle weakness, which could lead to human motor activities impairment and in many cases to shortening of life span and even death due to respiratory failure. That is why it is very important to better understand the underlying causes of these diseases to be able to implement new methods of treatment more effectively. This paper presents the results of the elemental analysis of human muscular tissues affected by dystrophy and myopathy. For this purpose, the particle-induced X-ray emission method was used, which is perfectly suited for measuring light elements. The samples were analysed for differences in the elemental composition of Na, Mg, P, S, Cl, K, Fe, Zn, and Br. The results were presented in the form of elemental concentration maps and a thorough statistical analysis of the obtained data using the advanced statistical methods.
Źródło:
Nukleonika; 2021, 66, 4; 159--164
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola metali w rozwoju choroby Alzheimera i Parkinsona
The role of metals in development Alzheimer's and Parkinson's diseases
Autorzy:
Żygowska, Justyna
Szymańska, Aneta
Powiązania:
https://bibliotekanauki.pl/articles/2057913.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
choroba neurodegeneracyjna
jony metali
β-amyloid
białka amyloidogenne
choroba Alzheimera
choroba Parkinsona
neurodegenerative diseases
amyloidogenic proteins
amyloid β
metal ions
Alzheimer's disease
Parkinson disease
Opis:
Neurodegenerative diseases are the consequence of progressive brain degeneration caused by the death of nerve cells. Many factors that influence the neurodegeneration development are still not fully known. A lot of studies indicate the contribution of metal ions in this process. Copper, zinc, and iron are trace elements essential for proper functioning of the body. They are part of many enzymes participating in the transmission of the nerve signals, electrons transport, neurotransmitters and nucleic acids synthesis, and oxygen storage. Disorder of metals homeostasis leads to the development of severe diseases and nervous system degenerations. An excess of copper and iron ions causes a significant increase in cellular oxidative stress. Metals catalyze the reactions of free radicals formation that destroy proteins, lipids, and nucleic acids. High concentration of copper and iron ions were found in the deposits of amyloidogenic proteins. Amyloid β (Alzheimer disease) and α synuclein (Parkinson disease) have ions binding chain structures. The metal-protein interaction increases oligomerization speed in vitro. A lot of evidence suggests that the disorder of Cu, Zn and Fe homeostasis accelerates the progress of brain neurodegeneration. Human organism contains many metals, which are not needed for the proper functioning of the body, e.g. aluminum. Al binds to nucleic acids causing an increase in cellular oxidative stress and initiating proteins oligomerization. The presence of aluminum is also considered to be disadvantageous for the nervous system. The lack of medicines for neurodegenerative diseases forces us to search for new therapies. The development of degenerations could be slowed down by chelators of toxic metals, but first, these diseases must be better understood. Adverse effects of high concentration of metal ions on brain functioning are not fully known. This knowledge is necessary to find effective drugs.
Źródło:
Wiadomości Chemiczne; 2022, 76, 1-2; 1-25
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Risk agents related to work and amyotrophic lateral sclerosis: An occupational medicine focus
Autorzy:
Garzillo, Elpidio Maria
Miraglia, Nadia
Pedata, Paola
Feola, Daniela
Lamberti, Monica
Powiązania:
https://bibliotekanauki.pl/articles/2177444.pdf
Data publikacji:
2015-12-23
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
occupational exposure
amyotrophic lateral sclerosis
occupational medicine
neurodegenerative processes
heavy metals
working adults
Opis:
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease characterized by progressive muscular paralysis reflecting degeneration of motor neurons. In recent years, in addition to several studies about genetic mechanisms leading to motor neurons damage, various epigenetic theories have been developed, involving the study of the patients’ work and lifestyle. The work aims at focusing the role of occupational exposure related to ALS by literature data analysis. Articles, selected on the basis of keywords, year of publication and topics, are related to occupational exposure, suggesting an impact on ALS onset. The literature review shows that there are still a lot of biases in the studies design, which actually do not allow to draw unequivocal conclusions.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2016, 29, 3; 355-367
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
PSYCHOLOGICAL RESOURCES OF CAREGIVERS OF INDIVIDUALS SUFFERING FROM PARKINSON’S DISEASE, AND THEIR DECLARED FEELING OF BURDEN
Autorzy:
Golińska, Paulina
Bidzan, Mariola
Brown, Jason W
Powiązania:
https://bibliotekanauki.pl/articles/2137783.pdf
Data publikacji:
2017-12-13
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
caregivers
neurodegenerative diseases
executive function
cognitive dysfunction
sense of coherence
Opis:
The subject literature identifies many predictors of a feeling of burden, yet it often ignores aspects of the psychological and social functioning of caregivers, i.e., resources for efficiently coping with a difficult situation. This study aimed to verify the predictors of a feeling of burden experienced by the caregivers of individuals suffering from Parkinson’s disease, taking into account the cognitive functioning of the patients as well as the psychological resources and social competences of the caregivers themselves. A cross-sectional study was conducted on 20 individuals suffering from Parkinson’s disease and their caregivers. It included a neuropsychiatric examination of the patients, with a special focus on executive functions, as well as an assessment of the psychological and social resources of their caregivers using standard psychometric methods. Self esteem was measured using the SES scale and sense of coherence was measured using SOC-29. The statistical analysis included correlation analysis and multiple hierarchical regression. The duration of the disease as well as cognitive impairments, especially executive dysfunction, are significant predictors of a feeling of burden. A high sense of coherence is associated with a positive assessment of one’s own resources in the context of coping with a difficult situation. The feeling of burden experienced by caregivers of individuals suffering from neurodegenerative disorders is a complex phenomenon, composed of many factors. The predictors discusse in this study point to various individual differences in the psychological resources possessed by caregivers.
Źródło:
Acta Neuropsychologica; 2017, 15(4); 391-405
1730-7503
2084-4298
Pojawia się w:
Acta Neuropsychologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
PET and SPECT imaging as a solid guide to detect and discriminate atypical phenotypes of neurodegenerative disorders
Autorzy:
Ruffini, Livia
Zilioli, Alessandro
Cervati, Veronica
Lauretani, Fulvio
Misirocchi, Francesco
Maggio, Marcello
Migliari, Silvia
Graziani, Tiziano
Cidda, Carla
Baldari, Giorgio
Spallazzi, Marco
Scarlattei, Maura
Powiązania:
https://bibliotekanauki.pl/articles/40521373.pdf
Data publikacji:
2024-03-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
atypical phenotypes
neurodegenerative diseases
positron emission tomography
single photon emission computed tomography
Opis:
Introduction and aim. Atypical or mixed presentations of neurodegenerative disorders may postpone or confound the final diagnosis. Molecular imaging with positron emission tomography (PET) and single photon emission computed tomography (SPECT) radioligands provide target-specific information and may anticipate the diagnosis by “in vivo” detection of the neuropathological substrate, as Aβ deposition, nigrostriatal dopaminergic depletion or tau inclusions. This concise review will discuss the potential of PET and SPECT imaging as a solid guide to better characterize atypical phenotypes of neurodegeneration in the clinical routine, with the potential to drive personalized interventions, improve cohort uniformity for clinical trials, and serve as biomarkers for targeted molecular therapies. Material and methods. Literature search was performed focusing on the role of PET and SPECT imaging in assessing atypical phenotypes of neurodegeneration, using the electronic source of database PubMed/MEDLINE and the web-based search engines Google, Google Scholar. Analysis of the literature. New disease-modifying drugs may increase their effect with early initiation, which is especially important in working persons and younger subjects presenting atypical symptoms. In older individuals, the coexistence of neurodegeneration, age-related changes, cerebrovascular lesions, or depression makes challenging a definitive diagnosis. Quantitative tools able to measure tracer distribution increase the accuracy of molecular neuroimaging creating topographic maps that compare subject’s data with healthy controls databases. Conclusion. Atypical phenotypes may be associated with quantitative key-pattern allowing a more precise and early diagnosis of the neurodegenerative disorder. Finally, quantitative assessment of the pathological substrates allows us to track the disease process and measure treatment response.
Źródło:
European Journal of Clinical and Experimental Medicine; 2024, 22, 1; 201-221
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Newest therapeutic options for adrenoleukodystrophy
Autorzy:
Gołębiowska, Maria
Gołębiowska, Beata
Beń-Skowronek, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/1163988.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
X-ALD
adrenoleukodystrophy
gene therapy
neurodegenerative disorders
Opis:
X-linked adrenoleukodystrophy is a genetic disease correlated with mutation of ATP-binding cassette, which results in errors of peroxisomal beta oxidation and accumulation of impaired very long chain fatty acids. This leads to degeneration of adrenal glands, spinal cord and myelin sheaths. Despite nearly 100 years of ALD history, the treatment is limited to few therapeutic options, mainly Lorenzo’s Oil and Hematopoetic stem cell transplant. Available therapy can only slow the progression of the disease in early stages. The aim of our study was to present the newest therapeutic options in X-ALD. Substantial articles on new treatment of X-ALD from period 2007-2018 in the Asian, European and American regions have been analyzed. Among 219 articles in PubMed Medline database related to therapy and treatment of X-ALD, 13 articles were selected for analysis, reviewed and divided into two main groups: cause-related treatment (11 articles) and symptoms-related treatment (2 articles). Within cause-related treatment, the usage of known medications such as eg. pioglitazone, natural phenols - resveratrol, gene therapy with adenoassociated virus serotype 9 or combined therapies (Hematopoetic Stem Cell Gene Therapy) have been reviewed. Symptoms related treatment attempted to reduce spasticity and secondary dystonia in X-ALD patients. Reviewed research presents progress in development of treatment options for X-ALD, however still in primary in vitro and animal tested stages. Secondary neurological symptoms medication is awaiting for better solutions for ALD patients, in order to improve their Quality of Life and allow symptomless course for a longer time.
Źródło:
World Scientific News; 2018, 108; 133-143
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neuropsychological consequences of COVID-19: current approach and clinical recommendations
Autorzy:
Treder-Rochna, Natalia
Witkowska, Marta A.
Powiązania:
https://bibliotekanauki.pl/articles/29519204.pdf
Data publikacji:
2024-03-22
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
elderly
chronic pulmonary diseases
cognitive dysfunction
neurodegenerative diseases
mental health
emotional functioning
brain fog
global pandemic
psychosocial factors
neuropsychological diagnosis
neuropsychological rehabilitation
hypoxia
infection of SARS-CoV-2
NeuroCOVID 19
long COVID
Opis:
Nearly two years into the pandemic, a large body of data has emerged on how COVID-19-positive patients function with the viral infection. It is now known that the virus targets the central nervous system(CNS). As a result, in addition to the expected common health complaints, patients display cognitive and emotional problems. Cognitive deficits should be expected particularly in patients who have arrived at an intensive care unit as a result of respiratory failure, in patients suffering from comorbid neurodegenerative diseases and respiratory conditions, as well as in the elderly. However, these may also occur in patients with moderate to mild symptoms as well as in those of a younger age. The cognitive impairment has an unknown profile. Given the hypothesised hippocampal vulnerability to the SARS-CoV-2 virus, one might expect particular difficulties with memory, attention, information processing, and executive functions. With varying neuropsychological and emotional problems, convalescents in trying to return to their social, family and professional life require professional psychological assistance. The role of neuropsychologists is here crucial. Indeed, many patients will require a detailed, multifaceted neuropsychological diagnosis that will form the basis for subsequent neuropsychological rehabilitation. An early detection of neuropsychological manifestations could modify the risk of subsequent irreversible impairment and further neurocognitive decline.
Źródło:
Acta Neuropsychologica; 2024, 22(1); 107-128
1730-7503
2084-4298
Pojawia się w:
Acta Neuropsychologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neuroprotective role of some microelements in the course of neurodegenerative diseases
Autorzy:
Witek, Bożena
Kamińska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/472596.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
homeostasis,
microelements,
neurodegenerative diseases
Źródło:
Annales Universitatis Paedagogicae Cracoviensis. Studia ad Didacticam Biologiae Pertinentia; 2019, IX; 5-12
2083-7267
2450-3487
Pojawia się w:
Annales Universitatis Paedagogicae Cracoviensis. Studia ad Didacticam Biologiae Pertinentia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Możliwości zastosowania komórek macierzystych w medycynie regeneracyjnej
The possibilities of stem cell application in regenerative medicine
Autorzy:
Galiniak, S.
Krawczyk-Merć, I.
Pedrycz, A.
Powiązania:
https://bibliotekanauki.pl/articles/366603.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
Tematy:
stem cells
induced pluripotent cells
cell therapies
diabetes
neurodegenerative diseases
komórki macierzyste
indukowane komórki pluripotencjalne
terapie komórkowe
cukrzyca
choroby neurodegeneracyjne
Opis:
Stem cells are characterized by their ability to self-renew and differentiate into various cell types. They offer great potential for a wide range of applications, however, medical studies on the use of embryonal stem cells are largely limited to bioethical issues searching for alternative sources of stem cells, which include isolating cells from adult organisms or inducing pluripotentiality of somatic cells by administration of transcription factors. Nowadays, stem cells are used to study the mechanisms of cell differentiation and treat diseases that are commonly considered to be incurable, such as diabetes and neurodegenerative diseases, as well as enable regeneration of skin damage and myocardium. This review introduces the subject of stem cells, their sources and application in regenerative medicine.
Komórki macierzyste (szczególnie embrionalne) charakteryzują się zdolnością do samopowielania i różnicowania we wszystkie typy komórek. Ta cecha daje możliwość szerokiego ich zastosowania w medycynie. Ze względów etycznych w znacznym stopniu ograniczone jednak zostały badana nad wykorzystaniem embrionalnych komórek macierzystych. Poszukuje się więc innych źródeł komórek macierzystych, m.in. izolując komórki z dorosłych organizmów czy indukując pluripotencjalność w komórkach somatycznych przez podanie czynników transkrypcyjnych. Komórki macierzyste wykorzystuje się do badań nad możliwościami leczenia chorób, które powszechnie uznaje się za nieuleczalne takich jak cukrzyca czy choroby neurodegeneracyjne. Badania z użyciem komórek macierzystych analizujące mechanizmy różnicowania się dają nadzieję na przyspieszenie regeneracji uszkodzeń skóry i komórek mięśnia sercowego. W niniejszej pracy autorzy przeanalizowali rodzaje komórek macierzystych, możliwości ich pozyskiwania oraz zastosowania w medycynie regeneracyjnej.
Źródło:
Polish Hyperbaric Research; 2016, 1(54); 49-64
1734-7009
2084-0535
Pojawia się w:
Polish Hyperbaric Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Functioning of Lexical Connections in Patients with Neurodegenerative Diseases. Case Study of a Patient with Spinocerebellar Ataxia (SCA)
Autorzy:
Gatkowska, Izabela
Jauer-Niworowska, Olga
Powiązania:
https://bibliotekanauki.pl/articles/27311267.pdf
Data publikacji:
2023-12-15
Wydawca:
Komisja Nauk Filologicznych Oddziału Polskiej Akademii Nauk we Wrocławiu
Tematy:
linguistics
psychology
experimental lexical network
speech-language disorders
rare neurodegenerative diseases
diagnosis
tools
methods
semantic disorders
cognitive disorders
Opis:
Aim of the research: interdisciplinary description of functioning of lexical connections in a patient with spinocerebellar ataxia (SCA-type1). There is little research on lexical networks in patients with neurodegenerative diseases. Procedure: the subject was asked to give associations to 63 stimuli-lexemes. Tools used in the study: the Experimental lexical network of the Polish language, a digital recorder, an Olympus 650 DM. The Experimental lexical network was developed by Izabela Gatkowska (2017). It was created as a result of the study concerning the associations of 900 healthy Polish-speaking adults. Utterances of the subject were recorded, transcribed and compared with standard data. Results: the reactions of the subject were different from the associations presented in the Experimental lexical network. The most common verbal reactions were: creating definitions of stimuli-word meanings or making comment on them. Associations created by the subject were based on paradigmatic or syntagmatic relations. The authors explain how the specific verbal behaviour of the subject is related to the cognitive and language dysfunctions caused by the cerebellar damages. The results showed that language processing should not be regarded as separate from other cognitive functions. Verbal reactions of the subject are slightly similar to aphasic symptoms, but mostly they are related to cerebellar damage and executive disorders. The results obtained proved the validity of the connection between linguistic and psychological methods and tools in studies which concern the language behaviour of patients with neurodegenerative diseases.
Źródło:
Academic Journal of Modern Philology; 2023, 19; 65-84
2299-7164
2353-3218
Pojawia się w:
Academic Journal of Modern Philology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Frequencies of alleles and genotypes of the PRNP gene in Polish Red, Czech Pied and Czech Black-and-White cattle
Autorzy:
Vrtkova, I
Filistowicz, A.
Dvorak, A.
Wierzbicki, H.
Szulc, T.
Powiązania:
https://bibliotekanauki.pl/articles/2041210.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Polish Red cow
prion protein
Czech Pied cattle
conservation programme
neurodegenerative disease
cow
chromosome
cattle
genotype
gene encoding
bovine spongiform encephalopathy
Polish Red cattle
allele
Czech Black-and-White cattle
PRNP gene
Źródło:
Journal of Applied Genetics; 2001, 42, 4; 503-507
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Flavonoids - food sources and health benefits
Autorzy:
Kozlowska, A.
Szostak-Wegierek, D.
Powiązania:
https://bibliotekanauki.pl/articles/872802.pdf
Data publikacji:
2014
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
flavonoids
plant metabolite
antioxidant effect
human disease
cancer
cardiovascular disease
neurodegenerative disease
nervous system
human nutrition
diet
anticancer effect
Opis:
Flavonoids are a group of bioactive compounds that are extensively found in foodstuffs of plant origin. Their regular consumption is associated with reduced risk of a number of chronic diseases, including cancer, cardiovascular disease (CVD) and neurodegenerative disorders. Flavonoids are classified into subgroups based on their chemical structure: flavanones, flavones, flavonols, flavan-3-ols, anthocyanins and isoflavones. Their actions at the molecular level include antioxidant effects, as well the ability to modulate several key enzymatic pathways. The growing body of scientific evidence indicates that flavonoids play a beneficial role in disease prevention, however further clinical and epidemiological trials are greatly needed. Among dietary sources of flavonoids there are fruits, vegetables, nuts, seeds and spices. Consumption of these substances with diet appears to be safe. It seems that a diet rich in flavonoids is beneficial and its promotion is thus justifiable.
Flawonoidy to grupa związków bioaktywnych występujących powszechnie w żywności pochodzenia roślinnego. Aktualne dane literaturowe wskazują, że substancje te, spożywane wraz z dietą człowieka, wykazują działanie ochronne przed wieloma chorobami przewlekłymi, w tym przed niektórymi nowotworami oraz schorzeniami układu sercowo-naczyniowego, a ponadto pozytywnie wpływają na układ nerwowy. W zależności od struktury chemicznej wyróżnia się takie podklasy flawonoidów jak: flawony, flawanony, flawonole, flawanole, antocyjany i izoflawony. Przypuszcza się, że mechanizm działania tych substancji opiera się na ich silnych właściwościach antyoksydacyjnych oraz innych mechanizmach, takich jak zdolność do modulowania licznych szlaków enzymatycznych. W wielu badaniach wykazano ich korzystne działanie w prewencji chorób przewlekłych. Jednakże poznanie dokładnego metabolizmu tych substancji wymaga prowadzenia dalszych badań. Źródłami flawonoidów w diecie człowieka są warzywa, owoce, orzechy i nasiona, a także niektóre przyprawy. Spożywanie tych substancji wraz z dietą człowieka wydaje się być bezpieczne. Uzasadnionym zatem wydaje się promowanie diety bogatej we flawonoidy.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2014, 65, 2
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dwie twarze cholesterolu: znaczenie fizjologiczne i udział w patogenezie wybranych schorzeń
Two faces of cholesterol: physiological importance and role in disease pathogenesis
Autorzy:
Użarowska, Maria
Surman, Magdalena
Janik, Marcelina
Powiązania:
https://bibliotekanauki.pl/articles/1033875.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Przyrodników im. Kopernika
Tematy:
cancer
cardiovascular diseases
cholesterol
chronic kidney disease
lipoproteins
neurodegenerative diseases
choroby nerek
choroby neurodegeneracyjne
choroby związane z układem krążenia
lipoproteiny
nowotwory
Opis:
Cholesterol to cząsteczka zbudowana z 17-węglowej struktury cyklopentanoperhydrofenantrenu i dołączonego do niej 6-węglowego łańcucha bocznego, klasyfikowana jako alkohol steroidowy ze względu na obecność pojedynczej grupy hydroksylowej. Główną funkcją cholesterolu jest zależna od temperatury modulacja płynności błon komórkowych. Duża ilość cholesterolu występuje w nanodomenach błonowych (tratwach lipidowych i kaweolach), które pełnią ważną rolę w procesie endocytozy i przekaźnictwie międzykomórkowym. Ponadto, jest on prekursorem hormonów steroidowych produkowanych przez gonady i korę nadnerczy oraz warunkuje właściwy przebieg rozwoju embrionalnego. Poza pełnieniem istotnej roli fizjologicznej, cholesterol może przyczyniać się do rozwoju wielu stanów patologicznych, wynikających zarówno z nagromadzenia jego cząsteczek w ustroju, jak i zaburzeń ich metabolizmu. Jego udział opisano m.in. w rozwoju schorzeń neurodegeneracyjnych, chorób układu krążenia, chorób nerek oraz chorób nowotworowych. Obecnie prowadzone badania zmierzają do opracowania nowych strategii terapeutycznych, pozwalających na skuteczniejszą i bezpieczniejszą kontrolę poziomu cholesterolu i regulację jego metabolizmu, oraz mających na celu wykorzystanie cholesterolu jako składnika nowych, skuteczniejszych leków.
Cholesterol is a molecule build of 17-carbon cyclopentano-perhydro-phenanthrene structure and 6- carbon side chain, classified as steroid alcohol due to the presence of a single hydroxyl group. The main function of cholesterol is temperature-dependent modulation of cell membrane liquidity. Large amounts of cholesterol are found in membrane nanodomains (lipid rafts and caveolae) that are essential for endocytosis and intercellular signaling. Moreover, cholesterol is a substrate in steroid hormones biosynthesis in gonads and adrenal glands, and determines the proper course of embryonic development. Besides its physiological role, cholesterol may contribute to pathogenesis of different diseases, resulting from its accumulation in the system or from metabolic disorders. The significance of cholesterol has already been described in several neurodegenerative disorders, cardiovascular and renal diseases, and in cancer. Therefore, current research focus on providing some new therapeutic strategies, allowing for cholesterol level control, regulation of its metabolism, or for using cholesterol molecules as effective drug component.
Źródło:
Kosmos; 2018, 67, 2; 375-390
0023-4249
Pojawia się w:
Kosmos
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies