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PSYCHOLOGICAL RESOURCES OF CAREGIVERS OF INDIVIDUALS SUFFERING FROM PARKINSON’S DISEASE, AND THEIR DECLARED FEELING OF BURDEN

100%

Golińska P., Bidzan M., Brown J. W.

Acta Neuropsychologica

2017

vol. 15(4)

391-405

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.

Peptidomics to study age-related diseases: spotlight on cancer and neurodegeneration

72%

Sedić M., Pavelić K., Josić D., Kraljević Pavelić S.

Peptidomics

2014

vol. 1

issue 1

Peptides in human body fluids closely mirror processes of protein synthesis, processing and degradation. Since peptide levels and composition in the circulation fluctuate in close correlation with specific condition (either physiological or pathological) of an individual, comprehensive peptide analysis may unravel novel disease biomarkers or pave the way to new diagnostic approaches. Discovery of novel peptide biomarkers could facilitate drug development, as peptides can be used to monitor response to drugs, and thus help determine an optimal therapeutic dosage and assess toxic effects. In this review, we will provide a short overview of typical mass spectrometry-based peptidomics workflow, and give the examples from current literature of how peptidomics studies could potentially improve detection and treatment of cancer and neurodegenerative diseases, the latter including Alzheimer’s and Creutzfeldt-Jakob disease.

Dwie twarze cholesterolu: znaczenie fizjologiczne i udział w patogenezie wybranych schorzeń

58%

Użarowska M., Surman M., Janik M.

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.

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Search results

PSYCHOLOGICAL RESOURCES OF CAREGIVERS OF INDIVIDUALS SUFFERING FROM PARKINSON’S DISEASE, AND THEIR DECLARED FEELING OF BURDEN

Peptidomics to study age-related diseases: spotlight on cancer and neurodegeneration

Dwie twarze cholesterolu: znaczenie fizjologiczne i udział w patogenezie wybranych schorzeń