neutral effect
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2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Edoardo Elia ◽  
Fabrizio D’Ascenzo ◽  
Susanna Breviario ◽  
Francesco Bruno ◽  
Giorgio Marengo ◽  
...  

Abstract Background The safety and efficacy of potent P2Y12 inhibitors (Ticagrelor and Prasugrel) in dual antiplatelet therapy (DAPT) with aspirin in elderly patients with acute coronary syndrome (ACS) remains unclear. Methods All ACS patients aged 75 years and older treated with Percutaneous Coronary Intervention (PCI) from PRAISE dataset were included. The safety and efficacy of Ticagrelor vs Clopidogrel was evaluated with inverse probability of treatment weighting (IPTW). Sensitivity analysis was performed for patients older or equal than 85 years old. All-cause mortality was the primary endpoint, while myocardial infarction (MI), Bleeding Academic Research Consortium (BARC) 3-5 bleedings and Major and Net Adverse Clinical and Cardiac Events (MACE and NACE) were the secondary ones. Results 4287 patients were included, 3197 treated with Clopidogrel and 1090 with Ticagrelor. After 16±3 months, Ticagrelor showed neutral effect on NACE and mortality (HR 0.98; 0.63-1.52, p=0.94 and HR 0.38; 0.14-1.04, p=0,06), reduced risk of MACE and MI (HR 0.82; 0.23-0.91, p=0.03 and HR 0.43; 0.14-0.89, p=0.04) and increased risk of BARC 3-5 bleeding (HR 2.14; 1.19-3.85, p=0.001). In very elderly patients (≥85 years) Ticagrelor decreased risk of MI and increased risk of bleeding (HR 0.69; 0.22-0.95, p=0.04 and HR 2.36; 1.02-5.52, p=0.04, all 95%CI) with neutral effect on NACE and MACE. Conclusions In elderly ACS patients treated with PCI, Ticagrelor was associated with neutral effect on all-cause mortality, lower risk MACE and MI compared with Clopidogrel. Such benefit was counterbalanced by increased risk of major bleedings. These results were consistent among patients aged 85 years and older. 817 Figure 1


Author(s):  
Christen E. Salyer ◽  
Jonathan Thompson ◽  
Dennis Hanseman ◽  
Tayyab Diwan ◽  
Brad M. Watkins ◽  
...  

Author(s):  
Nadiia Gatalska ◽  
Matyna Kolenkina

The article presents outlines the importance of architectural components of the park environment as indicators of the influence of socio-cultural factors on aesthetic preferences. The study involved 60 people, ranging in age from 22 to 74 years, which were divided into two age groups of 30 people: young people - 22-34 years (mean age 23.9 years); Mature people are 46-74 years old (average age 58.9 years). The study used a free associative experiment in which respondents distributed 45 photos of park landscapes from 18 world parks into three, equal in number, groups according to their own preferences and independently determined the factors that influenced the decision to refer them to the group of attractive, neutral or unattractive landscapes. Positive influence on aesthetic preferences was found on the part of historical buildings and structures on mature respondents, together with its neutral effect on young ones. At the same time, there was a neutral attitude of a group of mature respondents to the monuments of the Soviet era and a negative one on the part of the youth. Similar is the influence of abstract sculptures on the aesthetic perception of both young and mature respondents, which is negative. However, the negative impact of these elements on the aesthetic preferences of mature respondents is more significant. Summarizing the results of studies of aesthetic preferences and factors that influence their formation, it is advisable to note the importance of architectural components, as well as the importance of their ideological context. Along with the similarity of influence on aesthetic preferences of features of park environment, differences related to sociocultural influence on the formation of aesthetic experience were revealed due to the results of the analysis of the perception of architectural components.


Author(s):  
Spyridon Antonatos ◽  
Nikolaos T Papadopoulos ◽  
Eirini Anastasaki ◽  
Athanasios Kimbaris ◽  
Dimitrios P Papachristos

Abstract The Mediterranean fruit fly, Ceratitis capitata (Wiedemann), is one of the most important pests of fruits worldwide. In the present study, we investigated the ovipositional response of C. capitata females to 37 compounds of fruit volatiles from various chemical groups and the dose response to five of them. Red plastic hollow hemispheres (domes) were used as oviposition substrates in all tests. Twenty of the compounds tested increased female egg laying compared to control substrates that contain no chemicals. With 16 compounds, similar number of eggs was deposited in treated and in control oviposition substrates. One terpene ((±)-linalool) reduced egg laying indicating a deterrent ovipositional effect. Both the esters and aldehydes tested increased the ovipositional responses in C. capitata. Most of the monoterpene hydrocarbons increased oviposition, while oxygenated monoterpenes, sesquiterpenes hydrocarbons, and oxygenated sesquiterpenes had mostly neutral effect. Ethyl hexanoate and R-(+)-limonene increased oviposition in the majority of doses tested. Different doses of (−)-linalool elicited differential female ovipositional responses. In contrast, valencene and citral, regardless of dose did not affect female oviposition. Practical implications of these findings are discussed.


2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Anna Masajtis-Zagajewska ◽  
Jacek Majer ◽  
Michał Nowicki

Introduction. Excessive intake of fructose increases serum uric acid concentration. Hyperuricemia induces a negative effect on atherosclerosis and inflammation. Hyperuricemia is common in patients with arterial hypertension. Several antihypertensive drugs including diuretics increase serum uric acid concentration. In contrast, the angiotensin II receptor antagonist (ARB) losartan was found to lower serum uric acid though it may increase renal excretion while other ARBs showed mostly a neutral effect. In this study, effects of two AT1 receptor antagonists losartan and eprosartan on serum uric acid changes induced by oral fructose load were directly compared. Methods. The randomized, crossover, head-to-head comparative study comprised 16 ambulatory patients (mean age 64.5 ± 9.8 years). The patients fulfilled AHA/NHLBI 2005 criteria of metabolic syndrome. A daily single morning dose of each study drug (50 mg of losartan or 600 mg of eprosartan) was given during two 3-month periods in a random order separated by 2-week washout time. The oral fructose tolerance test (OFTT) was performed at baseline and after each two 3-onth treatment periods. Before and during OFTT, urine excretion of uric acid and creatinine was assessed in the first morning portion of urine. Blood samples for the measurement of serum uric acid and lipids were taken at baseline and 30, 60, and 120 minutes after oral intake of 75 g of fructose. Results. After 3-month treatment with eprosartan and losartan, both systolic and diastolic blood pressure decreased significantly and to a similar extent. After the treatment, serum uric acid and its baseline and postfructose urine excretion were unchanged. No significant changes of plasma lipids before and after OFTT were observed throughout the study. Conclusions. The study showed that in patients with hypertension and metabolic syndrome, both losartan and eprosartan have a neutral effect on fasting and postfructose load serum uric acid concentration and its urinary excretion. This trial is registered with NCT04954560.


2021 ◽  
Vol 92 (8) ◽  
pp. A10.2-A11
Author(s):  
Francesca Conti ◽  
Himanshu Tyagi

ObjectivesChanges in the severity of tics in Tourettes syndrome (TS), as seen with variations in the intensity or frequency of tics, can be moderated by a variety of independent simple or complex factors suchasexternalorinternalstimulioverlaidwithpsychologicalandphysiological variables. Identifying such moderators has important clinical implications as it can aid clinicians in adjusting interventions. Here we review research literature related to tic-severity moderators and their tic-worsening, tic-improving and neutral effects in individuals with TS with the aim to create a clinical inventory of moderating variables.MethodsA literature search using terms relating to tic severity, tic frequency, factors and moderators was conducted on Ovid Medline, Psych Info, APA Psych Articles, ProQuest,Scopus and PubMed following PRISMA guidelines. The criteria for this review included any published study, review and meta-analysis after the last review in 2008, investigating external and internal factors that had a tic-worsening, improving or neutral effect on children, adolescents or adults with TS and comorbidities.Results225 studies were initially identified after deduplication. A variety of tic severity moderators were identified with the most prominent being the effects of exe, sleep, distraction and comorbidities such as ADHD. However, an interesting finding was the high variability in these tic-moderating effects, as the same factor was tic-worsening in some patients and tic-improving in others, highlighting the subjectivity of these effects on tic severity. It was also noted that most of there viewed research did not report the possibility of a neutral effect.ConclusionsAs previous research has looked at these moderators in a dichotomous way, clinicians and researchers should be made more aware of the existence and variability of these tic severity moderators and of their highly subjective effects. This also has important, direct implications for the psychological assessment and treatment of tics. This review invites future research and clinicians to take this holistic approach on the effects ontic severity into consideration.


2021 ◽  
Author(s):  
Gerben Straatsma ◽  
Edwin T. H. M. Peeters ◽  
Egbert H. van Nes

AbstractPatterns in species × sample tables of communities depend above all on the organisms of the data sets and the conditions involved. Patterns that surpass individual sets are of special interest. Our question, looking for a shared pattern in 12 sets, is if relative abundances among species are independent of the sample, or formulated alternatively, if species have abundances that are correlated with total abundances over samples. For exploration we study the overdispersion/aggregation of the data. A relatively high variation in the total abundances of samples is noticed, indicating an effect of environmental variation. Overdispersion imposes constraints on the accommodation of relatively high abundance values to samples with a relatively low total abundance. The null hypothesis of ‘no association’ is modelled by permutation/resampling of the data at the level of the individual. A correlation study of actual and permuted sets is performed. All actual sets contain a significant number of species that defy our question. These species flourish when many do not. The relation of our question with issues in theoretical ecology, such as the assumption of a neutral effect of environmental conditions and/or of neutral characteristics of species, is discussed.


Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 391
Author(s):  
Marco A. Ponce ◽  
Tania N. Kim ◽  
William R. Morrison III

Microbes are ubiquitous and play important ecological roles in a variety of habitats. While research has been largely focused on arthropods and microbes separately in the post-harvest supply chain, less attention has been paid to their interactions with each other. Up to this point, there has been no attempt to systematically describe the patterns of behavioral responses by stored-product insects to microbially produced volatile organic compounds (MVOCs). Thus, our aims were to evaluate whether stored-product arthropods were primarily and significantly attracted, repelled, or had a net neutral effect (e.g., unaffected or mixed) by MVOCs presented as (1) complex headspace blends or (2) single constituents and known mixtures. In total, we found 43 articles that contained 384 sets of tests with different combinations of methodology and/or qualitative findings, describing the behavioral responses of 24 stored-product arthropod species from two classes, four orders, and 14 families to 58 individual microbial compounds and the complex headspace blends from at least 78 microbial taxa. A total of five and four stored-product arthropod species were significantly attracted and repelled by MVOCs across odor sources, respectively, while 13 were unaffected or exhibited mixed effects. We summarize the biases in the literature, including that the majority of tests have occurred in the laboratory with a limited subset of methodology and has largely only assessed the preference of adult arthropods. Finally, we identify foundational hypotheses for the roles that MVOCs play for stored-product arthropods as well as gaps in research and future directions, while highlighting that the behavioral responses to MVOCs are complex, context-, and taxon-dependent, which warrants further investigation.


2021 ◽  
Author(s):  
Caio C C Missagia ◽  
Maria Alice S Alves

Abstract Some types of plant accumulate liquid in their inflorescences creating phytotelmata. These environments protect the flowers against florivory, although they may be colonized by aquatic or semi-aquatic florivorous insect larvae, whose effects on the fitness of the plants remain unclear. We tested the hypothesis of floral antagonism by the occupants of phytotelmata, which predicts that florivory by the occupants of the phytotelmata represents a cost to the female fitness of the plant, reducing its fecundity. We manipulated experimentally the infestation by three florivores larvae species occupants of phytotelmata in inflorescences of Heliconia spathocircinata (Heliconiaceae) to test for negative direct trophic effects on the fecundity of the flowering and fruiting bracts. We found that the foraging of the hoverfly (Syrphidae) and moth (Lepidoptera) larvae in the inflorescences contributed to a decline in the fecundity of the plant. While the lepidopteran impacted fecundity when foraging in both flowering and fruiting bracts, the syrphid only affected the fruiting bracts, which indicates that the nectar and floral tissue are the principal resource exploited by the hoverfly. By contrast, soldier fly (Stratiomyidae) had a neutral effect on fecundity, while foraging in flowering or fruiting bracts. These findings corroborate our hypothesis, that herbivory by the larval occupants represents cost to the host plant having phytotelmata. The negative influence of this foraging on plant fecundity will nevertheless depend on the consequences of the exploitation of resources, which vary considerably in ephemeral habitats such as the phytotalmanta of flower parts.


Andrology ◽  
2021 ◽  
Author(s):  
Sky Graybill ◽  
Jennifer Hatfield ◽  
Maria Kravchenko ◽  
Darrick Beckman ◽  
Joshua Tate ◽  
...  

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