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1.
Proc Natl Acad Sci U S A ; 121(26): e2402282121, 2024 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-38885383

RESUMO

Goal-directed actions are characterized by two main features: the content (i.e., the action goal) and the form, called vitality forms (VF) (i.e., how actions are executed). It is well established that both the action content and the capacity to understand the content of another's action are mediated by a network formed by a set of parietal and frontal brain areas. In contrast, the neural bases of action forms (e.g., gentle or rude actions) have not been characterized. However, there are now studies showing that the observation and execution of actions endowed with VF activate, in addition to the parieto-frontal network, the dorso-central insula (DCI). In the present study, we established-using dynamic causal modeling (DCM)-the direction of information flow during observation and execution of actions endowed with gentle and rude VF in the human brain. Based on previous fMRI studies, the selected nodes for the DCM comprised the posterior superior temporal sulcus (pSTS), the inferior parietal lobule (IPL), the premotor cortex (PM), and the DCI. Bayesian model comparison showed that, during action observation, two streams arose from pSTS: one toward IPL, concerning the action goal, and one toward DCI, concerning the action vitality forms. During action execution, two streams arose from PM: one toward IPL, concerning the action goal and one toward DCI concerning action vitality forms. This last finding opens an interesting question concerning the possibility to elicit VF in two distinct ways: cognitively (from PM to DCI) and affectively (from DCI to PM).


Assuntos
Mapeamento Encefálico , Objetivos , Imageamento por Ressonância Magnética , Humanos , Masculino , Feminino , Adulto , Rede Nervosa/fisiologia , Teorema de Bayes , Encéfalo/fisiologia , Encéfalo/diagnóstico por imagem , Lobo Parietal/fisiologia , Modelos Neurológicos , Adulto Jovem
2.
BMC Plant Biol ; 24(1): 415, 2024 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-38760683

RESUMO

Globe artichoke (Cynara cardunculus var. scolymus; 2n = 2x = 34) is a food crop consumed for its immature flower heads. Traditionally, globe artichoke varietal types are vegetatively propagated. However, seed propagation makes it possible to treat the crop as annual, increasing field uniformity and reducing farmers costs, as well as pathogens diffusion. Despite globe artichoke's significant agricultural value and the critical role of heterosis in the development of superior varieties, the production of hybrids remains challenging without a reliable system for large-scale industrial seed production. Male sterility (MS) presents a promising avenue for overcoming these challenges by simplifying the hybridization process and enabling cost-effective seed production. However, within the Cynara genus, genic male sterility has been linked to three recessive loci in globe artichoke, with no definitive genetic mechanism elucidated to date. A 250 offsprings F2 population, derived from a cross between a MS globe artichoke and a male fertile (MF) cultivated cardoon (C. cardunculus var. altilis) and fitting a monogenic segregation model (3:1), was analyzed through BSA-seq, aiming at the identification of genomic regions/genes affecting male sterility. Four QTL regions were identified on chromosomes 4, 12, and 14. By analyzing the sequence around the highest pick on chromosome 14, a cytochrome P450 (CYP703A2) was identified, carrying a deleterious substitution (R/Q) fixed in the male sterile parent. A single dCAPS marker was developed around this SNP, allowing the discrimination between MS and MF genotypes within the population, suitable for applications in plant breeding programs. A 3D model of the protein was generated by homology modeling, revealing that the mutated amino acid is part of a highly conserved motif crucial for protein folding.


Assuntos
Cynara scolymus , Infertilidade das Plantas , Pólen , Infertilidade das Plantas/genética , Cynara scolymus/genética , Pólen/genética , Genoma de Planta , Genes de Plantas
3.
Cancer Cell Int ; 24(1): 106, 2024 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-38481242

RESUMO

BACKGROUND: Acute myeloid leukemia (AML) is a highly heterogeneous hematologic malignancy and the most frequently acute leukemia of stem cell precursors and the myeloid derivatives in adult. Longitudinal studies have indicated the therapeutic landscape and drug resistance for patients with AML are still intractable, which largely attribute to the deficiency of detailed information upon the pathogenesis. METHODS: In this study, we compared the cellular phenotype of resident NK cells (rAML-NKs, rHD-NKs) and expanded NK cells (eAML-NKs, eHD-NKs) from bone marrow of AML patients (AML) and healthy donors (HD). Then, we took advantage of the co-culture strategy for the evaluation of the in vitro cytotoxicity of NK cells upon diverse tumor cell lines (e.g., K562, Nalm6, U937). With the aid of RNA-sequencing (RNA-SEQ) and bioinformatics analyses (e.g., GOBP analysis, KEGG analysis, GSEA, volcano plot), we verified the similarities and differences of the omics features between eAML-NKs and eHD-NKs. RESULTS: Herein, we verified the sharp decline in the content of total resident NK cells (CD3-CD56+) in rAML-NKs compared to rHD-NKs. Differ from the expanded eHD-NKs, eAML-NKs revealed decline in diverse NK cell subsets (NKG2D+, CD25+, NKp44+, NKp46+) and alterations in cellular vitality but conservations in cytotoxicity. According to transcriptomic analysis, AML-NKs and HD-NKs showed multifaceted distinctions in gene expression profiling and genetic variations. CONCLUSIONS: Collectively, our data revealed the variations in the cytobiological and transcriptomic features between AML-NKs and HD-NKs in bone marrow environment. Our findings would benefit the further development of novel biomarkers for AML diagnosis and NK cell-based cytotherapy in future.

4.
Exp Dermatol ; 33(1): e15002, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38284193

RESUMO

Excessive exposure to ultraviolet (UV) light leads to acute and chronic UV damage and is the main risk factor for the development of skin cancer. In most countries with western lifestyle, the topical application of sunscreens on UV-exposed skin areas is by far the most frequently used preventive measure against sunburn. Further than preventing sunburns, increasing numbers of consumers are appreciating sunscreens with a medium- to high-level sun protective factor (SPF) as basis for sustainable-skin ageing or skin cancer prevention programs. However, recent investigations indicate that clinically significant DNA damages as well as a lasting impairment of cutaneous immunosurveillance already occur far below the standard of one minimal erythema dose (MED) sunburn level, which contributes to the current discussion of the clinical value of high-protective SPF values. Ex vivo investigations on human skin showed that the application of SPF30 reduces DNA damage for a day long sun exposure (24 MED) drastically by about 53% but is significantly surpassed by SPF100 reducing DNA damage by approx. 73%. Further analysis on different SPF protection levels in UV-exposed cell culture assays focusing on IL-18, cell vitality and cis/trans-urocanic acid support these findings. Whereas SPF30 and SPF50+ sunscreens already offer a solid UVB cover for most indications, our results indicate that SPF100 provides significant additional protection against mutagenic (non-apoptotic-) DNA damage and functional impairment of the cutaneous immunosurveillance and therefore qualifies as an optimized sunscreen for specifically vulnerable patient groups such as immunosuppressed patients, or skin cancer patients.


Assuntos
Neoplasias Cutâneas , Queimadura Solar , Humanos , Queimadura Solar/prevenção & controle , Queimadura Solar/etiologia , Protetores Solares/uso terapêutico , Pele , Raios Ultravioleta/efeitos adversos , Neoplasias Cutâneas/prevenção & controle , Neoplasias Cutâneas/tratamento farmacológico
5.
Br J Nutr ; 131(8): 1384-1396, 2024 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-38073290

RESUMO

Vitamin C-rich foods can improve mood; however, the timecourse of these benefits is unknown. This study utilised intensive longitudinal smartphone surveys from a three-armed placebo-controlled trial to determine mood-related changes following supplementation with vitamin C (250 mg tablet/d), kiwifruit (2 SunGold™ kiwifruit/d) or a placebo (1 tablet/d). Secondary data were analysed from the KiwiC for Vitality trial (Trial ID: ACTRN12617001031358). Adults (n 155, 63 % female, aged 18-35 years) with low plasma vitamin C (<40 µmol/l) completed a 14-d lead-in, 28-d intervention and 14-d washout. Participants self-reported vitality (SF-36), mood (POMS total mood disturbance), flourishing (flourishing scale), sleep quality, sleep quantity and physical activity every second day using smartphone surveys. Plasma vitamin C, measured fortnightly, reached saturation after 2 weeks of vitamin C or kiwifruit supplementation. Kiwifruit supplementation improved vitality and mood within 4 days, peaking around 14-16 days, and improved flourishing from day 14. Vitamin C marginally improved mood until day 12. Incremental AUC analyses revealed significant overall effects of kiwifruit consumption on vitality and mood compared with placebo, which were stronger than effects for vitamin C tablets, but attenuated when adjusting for covariates. Sensitivity analyses of participants with low baseline vitamin C status revealed improved mood (vitamin C and kiwifruit) and flourishing (kiwifruit only). This is the first study to use intensive smartphone surveys to model the day-to-day timecourse of mood-related states following vitamin C intervention and highlights the value of using smartphone surveys to reveal the temporal changes in mood-related outcomes following nutrient supplementation.


Assuntos
Ácido Ascórbico , Smartphone , Adulto , Feminino , Humanos , Masculino , Afeto , Suplementos Nutricionais , Vitaminas
6.
Cereb Cortex ; 33(7): 4164-4172, 2023 03 21.
Artigo em Inglês | MEDLINE | ID: mdl-36089830

RESUMO

As cold actions (i.e. actions devoid of an emotional content), also emotions are expressed with different vitality forms. For example, when an individual experiences a positive emotion, such as laughing as expression of happiness, this emotion can be conveyed to others by different intensities of face expressions and body postures. In the present study, we investigated whether the observation of emotions, expressed with different vitality forms, activates the same neural structures as those involved in cold action vitality forms processing. To this purpose, we carried out a functional magnetic resonance imaging study in which participants were tested in 2 conditions: emotional and non-emotional laughing both conveying different vitality forms. There are 3 main results. First, the observation of emotional and non-emotional laughing conveying different vitality forms activates the insula. Second, the observation of emotional laughing activates a series of subcortical structures known to be related to emotions. Furthermore, a region of interest analysis carried out in these structures reveals a significant modulation of the blood-oxygen-leveldependent (BOLD) signal during the processing of different vitality forms exclusively in the right amygdala, right anterior thalamus/hypothalamus, and periaqueductal gray. Third, in a subsequent electromyography study, we found a correlation between the zygomatic muscles activity and BOLD signal in the right amygdala only.


Assuntos
Emoções , Riso , Humanos , Emoções/fisiologia , Riso/fisiologia , Tonsila do Cerebelo/fisiologia , Imageamento por Ressonância Magnética/métodos , Mapeamento Encefálico/métodos
7.
BMC Vet Res ; 20(1): 1, 2024 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-38172872

RESUMO

BACKGROUND: Camel filariasis induced variable clinical syndromes characterized by fever, lethargy, localized dermal lesions, loss of condition, and testicular and scrotal swelling. The objective of the present work focused on clarifying the diagnostic importance of clinical findings, serum testosterone, and semen analysis as well as blood smear and testicular histopathology as a differential tool between only balanoposthitis without filariasis male camels group (OnlyBpgr) and balanoposthitis-filariasis infected male camels group (BpFlgr). The study also monitored the associations between the severity of ticks' infestations in investigated male camels and the occurrence of balanoposthitis only or balanoposthitis with filariasis. RESULTS AND CONCLUSIONS: The study reported significant correlation between serum testosterone, serum cortisol, and sperm vitality and abnormalities percentages. The study included male camels (n = 250) classified into three groups: healthy control group (Contgr; n = 30), OnlyBpgr (n = 210), and BpFlgr (n = 10). These male camels were clinically and laboratory examined, and skin scraping tests and testicular histopathology were conducted. The study confirmed the association of the changes in clinical findings, whole blood picture, serum testosterone, serum cortisol, and semen analysis, with OnlyBpgr and BpFlgr. These changes were more prominent in BpFlgr than in OnlyBpgr. Skin scraping test results revealed a higher severity of live ticks' infestation in BpFlgr than in OnlyBpgr because, unlike OnlyBpgr, all camels in BpFlgr (n = 10) were suffering from live ticks' infestation. It also concluded the higher efficacy of histopathology of testicular tissues in male camels as a diagnostic tool for adult filaria in balanoposthitis-affected male camels than blood smear because all cases of camel filariasis in the current work were negative for microfilaria on microscopic examination of diurnal blood smear as well as testicular histopathology revealed detection of adult filaria in all camel filariasis associated with balanoposthitis. Strong correlation relationships were demonstrated between serum testosterone, serum cortisol, and semen analysis results. Positive correlations were reported between serum testosterone levels and sperm vitality percentages. However, negative correlations were stated between serum testosterone and each of serum cortisol and sperm abnormalities either in Contgr, OnlyBpgr, or BpFlgr.


Assuntos
Dipetalonema , Filariose , Infecções por Nematoides , Masculino , Animais , Camelus , Sêmen , Hidrocortisona , Análise do Sêmen/veterinária , Filariose/veterinária , Infecções por Nematoides/veterinária , Testosterona
8.
Phytopathology ; 114(3): 630-640, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38457135

RESUMO

Bursaphelenchus xylophilus, the pine wood nematode (PWN), is the causal agent of pine wilt disease (PWD), which causes enormous economic loss annually. According to our previous research, fomepizole, as a selective inhibitor of PWN alcohol dehydrogenase (ADH), has the potential to be a preferable lead compound for developing novel nematicides. However, the underlying molecular mechanism is still unclear. The result of molecular docking showed that the stronger interactions between fomepizole and PWN ADH at the active site of ADH were attributed to hydrogen bonds. Low-dose fomepizole had a substantial negative impact on the egg hatchability, development, oviposition, and lifespan of PWN. Transcriptome analysis indicated that 2,124 upregulated genes and 490 downregulated genes in fomepizole-treated PWN were obtained. Kyoto Encyclopedia of Genes and Genomes enrichment analysis of differentially expressed genes indicated that fomepizole could be involved in controlling PWN vitality mainly by regulating key signaling pathways, such as the ribosome, hippo signaling pathway, and lysosome. Remarkably, the results of RNA interference indicated that the downregulated serine/threonine-protein phosphatase gene (stpp) could reduce the egg hatchability, development, oviposition, and lifespan of PWN, which was closely similar to the consequences of nematodes with low-dose fomepizole treatment. In addition, the silencing of stpp resulted in weakness of PWN pathogenicity, which indicated that stpp could be a potential drug target to control PWN.


Assuntos
Pinus , Tylenchida , Animais , Virulência , Transcriptoma , Fomepizol , Xylophilus , Simulação de Acoplamento Molecular , Doenças das Plantas , Pinus/genética , Fosfoproteínas Fosfatases/genética , Treonina/genética , Serina/genética , Tylenchida/genética
9.
Gen Comp Endocrinol ; 354: 114531, 2024 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-38670468

RESUMO

To date, the eel industry still depends on wild-caught juveniles that are grown to marketable size. There is an urgent need to close the eel life cycle in captivity to make aquaculture independent of the natural population. With this artificial reproduction protocol, yolk-sac larvae can be produced but egg quality may be impaired. Low survival rates and high deformity rates are frequently observed during the first week after hatching. Over the past four years, we have conducted studies with the aim to optimize the artificial reproduction protocol, thereby focussing on increasing egg and larval quality. Weekly carp or salmon pituitary extract (PE) treatment was successfully replaced with recombinant gonadotropins (rGTHs) to mature female eels and produce larvae. 17α,20ß-dihydroxy-4-pregnen-3-one (DHP) was replaced with upstream precursor progesterone (P) to induce the endogenous production of DHP by the female eel. DHP and P were found equally potent in inducing oocyte maturation and ovulation. The effects of antibiotics on larval survival and the occurrence of deformities were investigated. Antibiotic treatment increased survival and decreased the occurrence of deformities indicating bacterial infection as an important cause. A deformity determination key for young eel larvae has been developed that provides a framework of reference for larval deformities which will be instrumental with gaining insights on the reasons behind each larval deformity. These improvements of the artificial reproduction protocol and hatchery practices will contribute to the production of robust eel larvae that survive, grow and metamorphose into juveniles that will later be able to reproduce in captivity.


Assuntos
Anguilla , Larva , Animais , Anguilla/fisiologia , Larva/fisiologia , Feminino , Óvulo/fisiologia , Aquicultura/métodos
10.
Arch Womens Ment Health ; 27(1): 45-55, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37848766

RESUMO

Endometriosis-related pain is supposedly mainly responsible for generating psychological stress and deteriorating the quality of life. However, the interaction between these factors has not been investigated, considering its multidimensional nature and through the path of effects of psychosocial approaches. The present study aims to investigate the effect of a brief mindfulness-based intervention (bMBI) on pain dimensions and its mediator role on psychological stress and QoL-Vitality improvement. A secondary analysis of a pilot randomized controlled trial using a series of parallel and serial mediators was carried out. The results showed that bMBI improves the sensory (B = -6.09 [-9.81, -2.52], ß = -0.42) and affective (B = -3.40 [-5.02, -1.80], ß = -0.47) pain. The bMBI effect on psychological stress reduction was mediated by these changes in sensory (B = -2.81 [-6.06, -0.41], ß = -0.21) and affective (B = -1.97 [-5.07, -0.17], ß = -0.15) pain. Serial sensory pain and psychological stress reduction (B = 2.27 [0.11, 5.81], ß = -0.09) mediated the bMBI effect on quality of life vitality. Meditation training promotes additional improvement in affective and sensory pain characteristics through which psychological stress is reduced. The sensory pain dimension must be positively impacted in combination with psychological stress for the bMBI improves women's vitality. Adding a psychosocial intervention like meditation training to the standard treatment plan may be required for some women to achieve the needed changes to restore well-being.


Assuntos
Endometriose , Meditação , Atenção Plena , Feminino , Humanos , Endometriose/complicações , Endometriose/terapia , Meditação/métodos , Atenção Plena/métodos , Dor/etiologia , Qualidade de Vida , Estresse Psicológico/complicações , Estresse Psicológico/terapia , Estresse Psicológico/psicologia , Ensaios Clínicos Controlados Aleatórios como Assunto
11.
Proc Natl Acad Sci U S A ; 118(44)2021 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-34716272

RESUMO

Actions with identical goals can be executed in different ways (gentle, rude, vigorous, etc.), which D. N. Stern called vitality forms [D. N. Stern, Forms of Vitality Exploring Dynamic Experience in Psychology, Arts, Psychotherapy, and Development (2010)]. Vitality forms express the agent's attitudes toward others. In a series of fMRI studies, we found that the dorso-central insula (DCI) is the region that is selectively active during both vitality form observation and execution. In one previous experiment, however, the middle cingulate gyrus also exhibited activation. In the present study, in order to assess the role of the cingulate cortex in vitality form processing, we adopted a classical vitality form paradigm, but making the control condition devoid of vitality forms using jerky movements. Participants performed two different tasks: Observation of actions performed gently or rudely and execution of the same actions. The results showed that in addition to the insula, the middle cingulate cortex (MCC) was strongly activated during both action observation and execution. Using a voxel-based analysis, voxels showing a similar trend of the blood-oxygen-level-dependent (BOLD) signal in both action observation and execution were found in the DCI and in the MCC. Finally, using a multifiber tractography analysis, we showed that the active sites in MCC and DCI are reciprocally connected.


Assuntos
Comportamento/fisiologia , Giro do Cíngulo/fisiologia , Córtex Insular/fisiologia , Adulto , Atitude , Encéfalo/fisiologia , Mapeamento Encefálico/métodos , Córtex Cerebral/fisiologia , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino
12.
Psychopathology ; 57(1): 1-9, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37499644

RESUMO

BACKGROUND: Identifying suicidal risk based on clinical assessment is challenging. Suicidal ideation fluctuates, can be downplayed or denied, and seems stigmatizing if divulged. In contrast, vitality is foundational to subjectivity in being immediately conscious before reflection. Including its assessment may improve detection of suicidal risk compared to relying on suicidal ideation alone. We hypothesized that objective motility measures would be associated with vitality and enhance assessment of suicidal risk. METHODS: We evaluated 83 adult-psychiatric outpatients with a DSM-5 bipolar (BD) or major depressive disorder (MDD): BD-I (n = 48), BD-II (20), and MDD (15) during a major depressive episode. They were actigraphically monitored continuously over 3 weekdays and self-rated their subjective states at regular intervals. We applied cosinor analysis to actigraphic data and analyzed associations of subjective psychopathology measures with circadian activity parameters. RESULTS: Actigraphic circadian mesor, amplitude, day- and nighttime activity were lower with BD versus MDD. Self-rated vitality (wish-to-live) was significantly lower, self-rated suicidality (wish-to-die) was higher, and their difference was lower, with BD versus MDD. There were no other significant diagnostic differences in actigraphic sleep parameters or in self-rated depression, dysphoria, or anxiety. By linear regression, the difference between vitality and passive suicidal ideation was strongly positively correlated with mesor (p < 0.0001), daytime activity (p < 0.0001), and amplitude (p = 0.001). CONCLUSIONS: Higher circadian activity measures reflected enhanced levels of subjective vitality and were associated with lesser suicidal ideation. Current suicidal-risk assessment might usefully include monitoring of motility and vitality in addition to examining negative affects and suicidal thinking.


Assuntos
Transtorno Bipolar , Transtorno Depressivo Maior , Adulto , Humanos , Transtorno Depressivo Maior/psicologia , Transtorno Bipolar/diagnóstico , Transtorno Bipolar/psicologia , Ideação Suicida , Actigrafia , Ansiedade
13.
Int Endod J ; 57(8): 1065-1098, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38661046

RESUMO

INTRODUCTION: Diagnostic procedures for pulp vitality assessment are a crucial aspect of routine dental practice. This review aims to provide a comprehensive overview of nontraditional techniques and methodologies for assessing pulp vitality, specifically exploring promising approaches that are currently not used in dental practice. METHODS: The study protocol was registered a priori (https://osf.io/3m97z/). An extensive electronic search was conducted across multiple databases, including MEDLINE via PubMed, Scopus, Web of Science, and Embase. Inclusion criteria were guided by the research question based on the PCC model as follows: "What are the potential nontraditional techniques (Concept) for assessing pulp vitality (Population) in the field of endodontics or clinical practice (Context)?" Studies were included that explored possible approaches to pulp vitality assessment, utilizing a range of techniques, whilst any studies using traditional pulp tests (cold, heat, and electric stimulation) or well-known methods (pulse oximetry and laser Doppler flowmetry) were excluded. Reviewers independently screened articles and extracted data. A patent search was also performed. RESULTS: Of 3062 studies, 65 were included that described nontraditional approaches for assessing pulp vitality. These included a range of optical diagnostic methods, ultrasound Doppler flowmetry (UDF), magnetic resonance imaging (MRI), terahertz imaging, tooth temperature measurements, as well as invasive methodologies, including 133xenon washout, radioisotope-labelled tracers, hydrogen gas desaturation, intravital microscopy and fluorescent microspheres isotope clearance. The patent search included artificial intelligence and biomarkers methods. CONCLUSIONS: This review provides details for potential innovative tests that may directly describe pulp vitality. Importantly, these methods range from clinically impractical through to promising methods that may transform clinical practice. Several nontraditional techniques have the potential to enhance diagnostic accuracy and could provide valuable insights into the assessment of pulp vitality in challenging clinical scenarios.


Assuntos
Polpa Dentária , Humanos , Polpa Dentária/irrigação sanguínea , Polpa Dentária/fisiologia , Polpa Dentária/diagnóstico por imagem , Teste da Polpa Dentária/métodos , Fluxometria por Laser-Doppler/métodos
14.
Int J Phytoremediation ; 26(3): 304-313, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37537866

RESUMO

The present study examines the impact of pretreatment procedures on the metal concentrations in bags that are to be exposed. We examine Mn, Fe, Cu, Zn, Cd, and Pb amounts in Sphagnum fallax and Dicranum polysetum mosses using atomic absorption spectrometry. The concentration of Hg was also determined using a mercury analyzer. Two sample preparation ways were tested (with and without rinsing) and their influence was evaluated by determining the coefficient of variation (CV). Chlorophyll content was also determined in mosses collected from three habitats (deep woodland, forest road, and wood lot). The results indicate, that the concentration of elements deposited in mosses depends on the species and the habitat where they were collected (ANOVA, p < 0.001). Rinsing of mosses reduces the CV for Mn, Fe, Cu, and Zn and uniform the material prior to exposure (CV for the majority of metals <10%). Selected correlations were found for element concentrations with chlorophyll content. Photosynthetic activity of mosses decreased by about 80% during their one-month storage in the laboratory. Due to the varying concentration of metals in the collected samples, proper, and standardized preparation of mosses before exposure, they can be effectively used in active biomonitoring.


Compared to other biomonitoring work the novel approach is the simultaneous study of two moss species, the analysis of three different habitats and the tie-in of accumulated trace elements by mosses and their vitality by measuring chlorophyll content and photosynthetic activity.


Assuntos
Poluentes Atmosféricos , Briófitas , Bryopsida , Mercúrio , Metais Pesados , Metais Pesados/análise , Monitoramento Biológico , Poluentes Atmosféricos/análise , Monitoramento Ambiental/métodos , Biodegradação Ambiental , Briófitas/química , Clorofila/análise , Bryopsida/química
15.
BMC Oral Health ; 24(1): 613, 2024 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-38802767

RESUMO

BACKGROUND: One of the most important steps in deciding on the treatment of a tooth is to determine the vitality and health status of the pulp. Since immature teeth innervation is not completed, the response to sensitivity tests may not yield definite results. Pulse oximetry (PO) which is considered as a vitality test, measures the arterial oxygen saturation (SpO2). This study aims to compare PO, electric pulp test (EPT) and cold test in mature and immature permanent teeth. METHODS: 20 immature and 20 mature permanent incisors of 6-12-year-old ASA1 children who did not use any analgesics, were included in the study. Pulp vitality of the teeth was determined by EPT, cold test and PO. An infant probe of PO device (CMS60D, Contec Medical Systems Co. Ltd, China) was used to determine the SpO2 of the teeth. The SpO2 level is controlled on the patient's finger by a children's probe and an infant probe of PO. Shapiro-Wilk, Spearman rank correlation test and Kruskal-Wallis test/Dunn post-hoc analysis were used for statistical comparisons. RESULTS: There was no significant correlation between finger SpO2 and the mature/immature teeth SpO2 (r=-0.026, r = 0.253). Arterial oxygen saturation values in the immature teeth were significantly higher than in the mature teeth (p = 0.002). There was a high correlation between the vitality response of the EPT, cold test and PO. CONCLUSIONS: Pulse oximetry can be used as an effective vitality test compared to sensitivity tests in both immature and mature permanent incisors.


Assuntos
Teste da Polpa Dentária , Oximetria , Humanos , Oximetria/métodos , Criança , Teste da Polpa Dentária/métodos , Masculino , Feminino , Incisivo , Polpa Dentária/irrigação sanguínea , Temperatura Baixa , Saturação de Oxigênio
16.
J Prosthodont ; 33(2): 110-122, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37455556

RESUMO

PURPOSE: To evaluate the survival rate of full-coverage tooth-supported fixed prosthetic restorations, single crowns (SCs), and fixed dental prostheses (FDPs), taking into consideration the potential influence of tooth-vitality, presence and type of post, and type of prosthetic restoration material. MATERIALS AND METHODS: In October 2022, two authors independently conducted a search in PubMed, Web of Science, and Scopus electronic databases as well as a hand search to identify clinical human studies on full-coverage SCs and FDPs supported by vital and/or non-vital abutments and/or a combination of both, with a minimum observation period of 24 months. RESULTS: Out of 4198 studies identified through the database search and 22 through hand searching, 26 studies fulfilled the inclusion criteria and were included in the analysis of the present systematic review. Included studies scored six points and more according to Newcastle-Ottawa Scale (NOS). The highest estimated 5-year survival rate was observed for (metal-ceramic and all-ceramic) SCs on vital teeth (98.3%; 95% CI [98.1, 98.6%]) and all ceramic SCs on non-vital teeth with fiber post (95.0%; 95% CI [94.5-95.4%]). Metal-ceramic SCs on vital teeth (97.1%; 95% CI [95.6-98.7%]) showed a statistically significant higher estimated 5-year survival rate compared to metal-ceramic SCs with cast metal post (90.7%; 95% CI [87.4-94.0%], P < 0.001), fiber post (91.3%; 95% CI [90.9-91.6%], P < 0.001) and without post (85.7%; 95% CI [80.7, 90.6%], P < 0.032). All-ceramic SCs with fiber post had a statistically significant higher estimated 5-year survival rate (95.0%; 95% CI [94.5-95.4%]) compared to metal-ceramic SCs on non-vital teeth with fiber post (91.3%; 95% CI [90.9-91.6%], P < 0.001). SCs (all-ceramic and metal-ceramic) with fiber post had a statistically significantly higher estimated 5-year survival rate of (92.7%; 95% CI [92.4-92.9%]) than SCs made of metal-ceramic and retained by cast metal post (90.7%; 95% CI [87.4-94.0%], P < 0.001). For FDPs, the 5-year survival rate was significantly higher for FDPs on vital abutments (84.9%; 95% CI [75.9, 93.9%]) compared to FDPs retained by non-vital abutment/s (81.3%; 95% CI [80.3, 82.2%], P = 0.049) irrespective to presence, type of post, and FDPs material. The results are limited by the limited number of studies and the presence of uncontrolled confounding clinical variables. CONCLUSIONS: Within the limitations of the study, tooth vitality is suggested to contribute positively to the survival of SCs and FDPs.


Assuntos
Dente não Vital , Humanos , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Materiais Dentários , Cerâmica , Coroas , Metais , Prótese Parcial Fixa
17.
Wiad Lek ; 77(5): 985-991, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39008587

RESUMO

OBJECTIVE: Aim: Theoretical analysis of the problem of the individual's vitality in the context of its reflective determination, an empirical study of the formation of its components, and the proof of correlations with various types of reflection. PATIENTS AND METHODS: Materials and Methods: The following psychodiagnostic methods were used in the empirical study: "Methodology of vitality diagnosis" by S. Maddi in an adaptation by D. Leontiev; test for determining the reflection of interpersonal interaction T. Pushkar in the modification of N. Senchyna; the method of research of reflexivity of thinking (T. Pashukova, A. Dopira, G. Dyakonov); the technique "Determining the level of reflection" (O. Anisimov); method "Determining the level of reflexivity" (A. Karpov, V. Ponomaryova). RESULTS: Results: It was established that the majority of students in both the first and fourth years have an average and low level of vitality. Vitality is directly connected to intellectual, personal, and situational reflection on a temporal basis; that is, the specified types of reflection are the leading determinants of vitality, which is statistically proven. CONCLUSION: Conclusions: The study showed the high importance of resilience for the full functioning of student youth in modern complex life conditions and its determination by the level of development of various types of reflection.


Assuntos
Estudantes , Humanos , Estudantes/psicologia , Feminino , Masculino , Adulto Jovem , Adulto , Relações Interpessoais
18.
Stud Hist Philos Sci ; 106: 99-108, 2024 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-38906075

RESUMO

Mainstream and alternative nutrition doctrines have crucially shaped our understanding of the vital aspects of and forces in human nutrition. Drawing upon a diverse array of sources, this article delves into cultural, social, and scientific conceptions of vital nutrition and how they evolved in relation to the Finnish obesity discourse from the 1950s to the 1970s. The Association to Combat Obesity (ACO), which brought together nutrition scientists, food faddists and laypeople, was the driving force of these debates. In the context of this article, food was perceived to influence the vitality of individuals and nations through its effect on body weight. Obese bodies seemed to conflict with both utopian visions of bodily transcendence and the ideals of wellbeing in modern health sciences. This work highlights the ideological continuities between interwar and postwar nutrition debates as well as the persistent tensions between scientific advancements and alternative nutrition philosophies. They have molded the conceptions of vitality and attitudes towards obesity. Concludingly, we suggest that the social responses to obesity have been influenced by the condition's perceived adverse relationship to vitality, in which fat has acted as a persistent reminder of corporeality, death, and decay.

19.
Sud Med Ekspert ; 67(2): 17-19, 2024.
Artigo em Russo | MEDLINE | ID: mdl-38587153

RESUMO

OBJECTIVE: To examine the applicability of IHC staining method: with TGF-ß1 antibodies (serial examination, statistically processed results) and with mast cell tryptase antibodies for injuries vitality determination. MATERIAL AND METHODS: 261 skin autopsy samples with mechanical injuries from 29 persons were divided to 3 groups (87 in each group): vital injuries, postmortal injuries, control non-injured samples. A routine histological examination using standard H&E stain and IHC both with TGF-ß1 and mast cells tryptase antibodies was performed. RESULTS AND CONCLUSION: The positive TGF-ß1 staining (score 2-3) was found in keratinocytes in vitally injured skin and the negative or weak one (score 0-1) was found in control postmortally injured and non-injured samples. Additionally, dermal TGF-ß1 expression was found in some vitally injured skin samples. The difference between vitally injured skin and control samples was statistically significant (p<0.05). No significant difference of dermal mast cells density in groups 1, 2, 3 was found.


Assuntos
Lesões dos Tecidos Moles , Fator de Crescimento Transformador beta1 , Humanos , Fator de Crescimento Transformador beta1/metabolismo , Pele/lesões , Autopsia
20.
BMC Bioinformatics ; 24(1): 175, 2023 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-37118676

RESUMO

BACKGROUND: Locomotion behaviors of Caenorhabditis elegans play an important role in drug activity screening, anti-aging research, and toxicological assessment. Previous studies have provided important insights into drug activity screening, anti-aging, and toxicological research by manually counting the number of body bends. However, manual counting is often low-throughput and takes a lot of time and manpower. And it is easy to cause artificial bias and error in counting results. RESULTS: In this paper, an algorithm is proposed for automatic counting and analysis of the body bending behavior of nematodes. First of all, the numerical coordinate regression method with convolutional neural network is used to obtain the head and tail coordinates. Next, curvature-based feature point extraction algorithm is used to calculate the feature points of the nematode centerline. Then the maximum distance between the peak point and the straight line between the pharynx and the tail is calculated. The number of body bends is counted according to the change in the maximum distance per frame. CONCLUSION: Experiments are performed to prove the effectiveness of the proposed algorithm. The accuracy of head coordinate prediction is 0.993, and the accuracy of tail coordinate prediction is 0.990. The Pearson correlation coefficient between the results of the automatic count and manual count of the number of body bends is 0.998 and the mean absolute error is 1.931. Different strains of nematodes are selected to analyze differences in body bending behavior, demonstrating a relationship between nematode vitality and lifespan. The code is freely available at https://github.com/hthana/Body-Bend-Count .


Assuntos
Proteínas de Caenorhabditis elegans , Nematoides , Animais , Caenorhabditis elegans , Algoritmos , Envelhecimento
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