Publications by authors named "Kulik A"

Objectives: The aim of this article is to introduce the Polish adaptation of the Developmental Crisis Questionnaire (DCQ-12). In Poland, there is currently no tool for measuring the quarterlife crisis, hindering empirical exploration and cognitive understanding of this phenomenon. The DCQ-12, developed by Petrov and colleagues, serves as an age-independent measure of adult developmental crisis for research and applied purposes.

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Background: There is concern that left internal thoracic artery (LITA)-to diagonal (D)-to left anterior descending artery (LAD) grafts may be more susceptible to failure compared with single LITA-LAD grafts.

Methods: Pooled individual patient data from 8 clinical trials with systematic graft imaging were analyzed to assess the incidence of sequential LITA-D-LAD vs single LITA-LAD grafts. Mixed-effects multivariable logistic regression, adjusting for patient characteristics and clustering within trials, was used.

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Glycopeptide antibiotics (GPAs) are peptide natural products used as last resort treatments for antibiotic resistant bacterial infections. They are produced by the sequential activities of a linear nonribosomal peptide synthetase (NRPS), which assembles the heptapeptide core of GPAs, and cytochrome P450 (Oxy) enzymes, which perform a cascade of cyclisation reactions. The GPAs contain proteinogenic and nonproteinogenic amino acids, including phenylglycine residues such as 4-hydroxyphenylglycine (Hpg).

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Article Synopsis
  • Voriconazole (VOR), an anti-fungal drug, can cause phototoxicity and skin cancer by impairing the DNA repair process known as nucleotide excision repair (NER).
  • VOR affects NER not by changing the expression of related genes but by binding to heterochromatin, disrupting the acetylation of histone H3, which is necessary for effective DNA repair.
  • Using histone deacetylase inhibitors to restore H3 acetylation can reverse the NER inhibition caused by VOR, suggesting a potential therapeutic strategy to prevent its harmful effects.
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There is scarce evidence of a relationship between positive and psychosomatic characteristics. This study aimed to examine the associations of somatic burden with psychological resources such as optimism, resilience, and general self-efficacy. Russian participants (n = 1020) completed measures of psychological resources at Time 1 and somatic symptoms at Time 2.

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  • Women experience higher rates of graft failure after coronary artery bypass surgery (CABG) compared to men, with significant differences observed at both the patient and graft levels.
  • The study found that graft failure in women is linked to a greater risk of myocardial infarction, the need for repeat procedures, and increased mortality, confirming the poor outcomes following CABG for females.
  • However, the increased risk of death associated with being female post-surgery is not due to graft failure, suggesting other factors contribute to these sex-related differences in outcomes.
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Objectives: The study aimed to provide information on the psychometric properties of the MCQ-A for Polish adolescents; confirm the factor structure of the instrument relative to the original scale; and present the intensity of dysfunctional metacognitive beliefs of adolescents during the pandemic.

Methods: A total of 375 adolescents aged 1218 (M = 15.38; SD = 1.

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Voltage-gated Ca2.1 (P/Q-type) Ca channels play a crucial role in regulating neurotransmitter release, thus contributing to synaptic plasticity and to processes such as learning and memory. Despite their recognized importance in neural function, there is limited information on their potential involvement in neurodegenerative conditions such as Alzheimer's disease (AD).

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  • The phosphorylation of the Light-Harvesting Complex of photosystem II (LHCII) by STN7 kinase is crucial for regulating photosynthesis, particularly under changing light conditions, and can also happen in the dark due to chilling.
  • Research on runner bean showed that dark-chilling leads to light-independent LHCII phosphorylation, linked to reduced plastoquinone (PQ) pool levels and potential relocation within the thylakoid membrane.
  • The study suggests a new pathway where the activation of oxidative pentose phosphate pathway enzymes triggers a series of biochemical events that ultimately lead to LHCII phosphorylation, highlighting the intricate functioning of photosynthetic processes even without light.
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Objectives: The association between obesity and graft failure after coronary artery bypass grafting has not been previously investigated.

Methods: We pooled individual patient data from randomized clinical trials with systematic postoperative coronary imaging to evaluate the association between obesity and graft failure at the individual graft and patient levels. Penalized cubic regression splines and mixed-effects multivariable logistic regression models were performed.

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Objectives: The aim of this experimental pilot study is to evaluate the effects of 25 metacognitive interventions on planning skills in children with ADHD.

Methods: Forty-five children with ADHD aged 7-12 years (M = 10.41; SD = 1.

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Experience-driven alterations in neuronal activity are followed by structural-functional modifications allowing cells to adapt to these activity changes. Structural plasticity has been observed for cortical principal cells. However, how GABAergic interneurons respond to experience-dependent network activity changes is not well understood.

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In this paper, we consider a general notion of convolution. Let be a finite domain and let be the set of -length vectors (tuples) of . Let be a function and let be a coordinate-wise application of .

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Somatostatin-expressing interneurons (SOMIs) in the mouse dentate gyrus (DG) receive feedforward excitation from granule cell (GC) mossy fiber (MF) synapses and provide feedback lateral inhibition onto GC dendrites to support environment representation in the DG network. Although this microcircuitry has been implicated in memory formation, little is known about activity-dependent plastic changes at MF-SOMI synapses and their influence on behavior. Here, we report that the metabotropic glutamate receptor 1α (mGluR1α) is required for the induction of associative long-term potentiation (LTP) at MF-SOMI synapses.

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Streptogramins are the last line of defense antimicrobials with pristinamycin as a representative substance used as therapeutics against highly resistant pathogenic bacteria. However, the emergence of (multi)drug-resistant pathogens renders these valuable antibiotics useless; making it necessary to derivatize compounds for new compound characteristics, which is often difficult by chemical synthesis due to the complex nature of the molecules. An alternative to substance derivatization is mutasynthesis.

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Cystargolides are natural products originally isolated from Kitasatospora cystarginea NRRL B16505 as inhibitors of the proteasome. They are composed of a dipeptide backbone linked to a β-lactone warhead. Recently, we identified the cystargolide biosynthetic gene cluster, but systematic genetic analyses had not been carried out because of the lack of a heterologous expression system.

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The caseinolytic protease is a highly conserved serine protease, crucial to prokaryotic and eukaryotic protein homeostasis, and a promising antibacterial and anticancer drug target. Herein, we describe the potent cystargolides as the first natural β-lactone inhibitors of the proteolytic core ClpP. Based on the discovery of two clpP genes next to the cystargolide biosynthetic gene cluster in Kitasatospora cystarginea, we explored ClpP as a potential cystargolide target.

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In nature, all living organisms must continuously sense their surroundings and react to the occurring changes. In the cell, the information about these changes is transmitted to all cellular compartments, including the nucleus, by multiple phosphorylation cascades. Sucrose Non-Fermenting 1 Related Protein Kinases (SnRK2s) are plant-specific enzymes widely distributed across the plant kingdom and key players controlling abscisic acid (ABA)-dependent and ABA-independent signaling pathways in the plant response to osmotic stress and salinity.

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Information processing and storage in the brain rely on AMPA-receptors (AMPARs) and their context-dependent dynamics in synapses and extra-synaptic sites. We found that distribution and dynamics of AMPARs in the plasma membrane are controlled by Noelins, a three-member family of conserved secreted proteins expressed throughout the brain in a cell-type-specific manner. Noelin tetramers tightly assemble with the extracellular domains of AMPARs and interconnect them in a network-like configuration with a variety of secreted and membrane-anchored proteins including Neurexin1, Neuritin1, and Seizure 6-like.

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Article Synopsis
  • CABG benefits are linked to graft patency, but there's little research on post-surgery graft assessments and the factors leading to graft failure.
  • This study analyzed data from seven randomized clinical trials with 4,413 patients to investigate graft failure rates and their relationship to clinical outcomes, focusing on events like myocardial infarctions and additional surgeries.
  • Findings showed that graft failure occurred in 33.7% of patients and was more likely in older adults, women, and smokers, while statin use appeared protective; graft failure significantly raised the risk of future heart events.
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Introduction And Objective: Low physical activity in patients with claudication is associated with lower walking abilities as assessed by the treadmill test. The impact of physical activity on the ability to walk in a natural environment is unknown. The study aimed to assess the level of daily physical activity among patients with claudication, as well as the relationship between the level of daily physical activity and claudication distance measured during the outdoor walking and treadmill tests.

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Glycopeptide antibiotics (GPA) consist of a glycosylated heptapeptide backbone enriched in aromatic residues originating from the shikimate pathway. Since the enzymatic reactions within the shikimate pathway are highly feedback-regulated, this raises the question as to how GPA producers control the delivery of precursors for GPA assembly. We chose Amycolatopsis balhimycina, the producer of balhimycin, as a model strain for analyzing the key enzymes of the shikimate pathway.

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Background: Low 24-h urinary excretion of creatinine in patients with heart failure (HF) is believed to reflect muscle wasting and is associated with a poor prognosis. Recently, spot urinary creatinine concentration (SUCR) has been suggested as a useful prognostic factor in selected HF cohorts. This more practical and cheaper approach has never been tested in an unselected HF population.

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Introduction: Risk prediction in patients with heart failure with reduced ejection fraction (HFrEF) is one of the key challenges for clinicians. Novel biomarkers aggregating several important pathophysiological pathways may modify the diagnostic discrimination of validated scores. The red cell distribution width (RDW) is a cheap and easily available measure of anisocytosis, and was shown to have a strong independent prognostic power in short- and medium‑term prognosis in HFrEF.

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Background: The aim of the cross-sectional study was to conduct an exploratory analysis of identifying factors related to mood, metacognitive beliefs, and limitation on individual freedom associated with lockdown restrictions during COVID-19, and to determine whether they may be relevant to the deteriorating well-being of adolescents.

Methods: A total of 387 adolescents (M = 15.37; SD = 1.

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