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  1. Article ; Online: Nonlocal finite difference discretization of a class of renewal equation models for epidemics.

    Messina, Eleonora / Pezzella, Mario / Vecchio, Antonia

    Mathematical biosciences and engineering : MBE

    2023  Volume 20, Issue 7, Page(s) 11656–11675

    Abstract: In this paper we consider a non-standard discretization to a Volterra integro-differential system which includes a number of age-of-infection models in the literature. The aim is to provide a general framework to analyze the proposed scheme for the ... ...

    Abstract In this paper we consider a non-standard discretization to a Volterra integro-differential system which includes a number of age-of-infection models in the literature. The aim is to provide a general framework to analyze the proposed scheme for the numerical solution of a class of problems whose continuous dynamic is well known in the literature and allow a deeper analysis in cases where the theory lacks.
    Language English
    Publishing date 2023-07-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2265126-3
    ISSN 1551-0018 ; 1551-0018
    ISSN (online) 1551-0018
    ISSN 1551-0018
    DOI 10.3934/mbe.2023518
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Optical Coherence Tomography Angiography in Central Retinal Vein Occlusion: Macular Changes and Their Correlation with Peripheral Nonperfusion at Ultra-Widefield Fluorescein Angiography.

    Cavalleri, Michele / Sacconi, Riccardo / Parravano, Mariacristina / Costanzo, Eliana / Pezzella, Mario / Bandello, Francesco / Querques, Giuseppe

    Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde

    2022  Volume 245, Issue 3, Page(s) 275–284

    Abstract: Introduction: The aim of this study was to investigate the correlation between ischemic index (ISI) measured on ultra-widefield (UWF) fluorescein angiography (FA) images and macular parameters obtained by optical coherence tomography angiography (OCT-A) ...

    Abstract Introduction: The aim of this study was to investigate the correlation between ischemic index (ISI) measured on ultra-widefield (UWF) fluorescein angiography (FA) images and macular parameters obtained by optical coherence tomography angiography (OCT-A) in eyes affected by central retinal vein occlusion (CRVO).
    Methods: Retrospective study of data from 12 eyes affected by treatment-naïve CRVO. All patients underwent a comprehensive ocular examination including structural OCT, OCT-A, and UWF FA. Variables analyzed included best corrected visual acuity (BCVA) measured with the ETDRS chart; foveal avascular zone (FAZ) area at full-thickness OCT-A angiogram; perfusion density (PD) in the superficial (SCP) and deep capillary plexus (DCP); ISI; and central macular thickness (CMT).
    Results: ISI showed a significant positive correlation with FAZ area (r = 0.63, p = 0.019) and a significant negative correlation with PD in the SCP (r = -0.62, p = 0.022), PD in the DCP (r = -0.66, p = 0.011), and BCVA (r = -0.75, p = 0.002). FAZ area also negatively correlated to PD in the SCP (r = -0.75, p = 0.002) and DCP (r = -0.64, p = 0.016). BCVA positively correlated to PD in the SCP (r = 0.67, p = 0.009) and DCP (r = 0.68, p = 0.008), while a negative correlation was found with FAZ area (r = -0.65, p = 0.013) and CMT (r = -0.70, p = 0.006).
    Discussion/conclusion: OCT-A macular parameters (namely, FAZ area and PD of SCP and DCP) significantly correlated with ISI, a quantitative way to assess peripheral retinal nonperfusion on UWF FA. Macular OCT-A analysis may help in assessing the need for additional UWF FA testing in eyes affected by CRVO.
    MeSH term(s) Fluorescein Angiography/methods ; Humans ; Retinal Vein Occlusion/diagnosis ; Retinal Vessels ; Retrospective Studies ; Tomography, Optical Coherence/methods ; Visual Acuity
    Language English
    Publishing date 2022-02-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 209735-7
    ISSN 1423-0267 ; 0030-3755
    ISSN (online) 1423-0267
    ISSN 0030-3755
    DOI 10.1159/000522503
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Ul I Zs.65: Show issues Location:
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  3. Article: Effects of social exclusion and maternal rejection on Children's high-caloric food consumption

    Senese, Vincenzo Paolo / Pezzella, Mario / Pasquariello, Luigi / Ali, Sumbleen / Rohner, Ronald P

    Appetite. 2020 Feb. 01, v. 145

    2020  

    Abstract: Research has shown that the quality of interpersonal relationships plays an important role in influencing childhood obesity-risk behavior. However, studies conducted so far have focused mostly on self-report data. But they rarely control for the effect ... ...

    Abstract Research has shown that the quality of interpersonal relationships plays an important role in influencing childhood obesity-risk behavior. However, studies conducted so far have focused mostly on self-report data. But they rarely control for the effect of experimentally-induced social rejection or perceived maternal rejection. The aim of this study was to investigate the effects of the quality of the maternal relationships as well as experimentally-induced social rejection on children's motivation to consume high-caloric food. Eighty children (8–12 years of age) and their mothers participated in an experimental study. Participants were randomly assigned to a social inclusion (acceptance) or exclusion (rejection) condition in a computer-based ball-toss game (Cyberball). After completing the Cyberball game, children were presented with high-caloric food and were evaluated on the amount of the food they consumed. Participants also completed a self-report questionnaire assessing their perceptions of their mothers' acceptance-rejection. Further, mothers' Body Mass Index (BMI) was measured, and a semi-structured interview was conducted to assess the tendency of mothers to regulate their child's stress with food. Results showed that the consumption of high-caloric food was directly influenced by the children's perceptions of maternal acceptance-rejection, and by the experience of brief, experimentally-induced social exclusion (rejection). Additionally, children's consumption of high-caloric food was related to their mothers' use of food to help regulate children's distress, and by the children's own BMI. The results document the importance of affective-relational experiences in the development of childhood obesity. The results also highlight the apparent fact that regardless of individual and family characteristics, the experience of even short-term social rejection can activate obesity-risk behaviors which deplete children's self-regulatory mechanisms, thereby resulting in more consumption of high-caloric food.
    Keywords body mass index ; child nutrition ; childhood ; childhood obesity ; children ; distress ; food intake ; high energy foods ; interpersonal relationships ; mothers ; motivation ; questionnaires
    Language English
    Dates of publication 2020-0201
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 764440-1
    ISSN 0195-6663
    ISSN 0195-6663
    DOI 10.1016/j.appet.2019.104494
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Effects of social exclusion and maternal rejection on Children's high-caloric food consumption.

    Senese, Vincenzo Paolo / Pezzella, Mario / Pasquariello, Luigi / Ali, Sumbleen / Rohner, Ronald P

    Appetite

    2019  Volume 145, Page(s) 104494

    Abstract: Research has shown that the quality of interpersonal relationships plays an important role in influencing childhood obesity-risk behavior. However, studies conducted so far have focused mostly on self-report data. But they rarely control for the effect ... ...

    Abstract Research has shown that the quality of interpersonal relationships plays an important role in influencing childhood obesity-risk behavior. However, studies conducted so far have focused mostly on self-report data. But they rarely control for the effect of experimentally-induced social rejection or perceived maternal rejection. The aim of this study was to investigate the effects of the quality of the maternal relationships as well as experimentally-induced social rejection on children's motivation to consume high-caloric food. Eighty children (8-12 years of age) and their mothers participated in an experimental study. Participants were randomly assigned to a social inclusion (acceptance) or exclusion (rejection) condition in a computer-based ball-toss game (Cyberball). After completing the Cyberball game, children were presented with high-caloric food and were evaluated on the amount of the food they consumed. Participants also completed a self-report questionnaire assessing their perceptions of their mothers' acceptance-rejection. Further, mothers' Body Mass Index (BMI) was measured, and a semi-structured interview was conducted to assess the tendency of mothers to regulate their child's stress with food. Results showed that the consumption of high-caloric food was directly influenced by the children's perceptions of maternal acceptance-rejection, and by the experience of brief, experimentally-induced social exclusion (rejection). Additionally, children's consumption of high-caloric food was related to their mothers' use of food to help regulate children's distress, and by the children's own BMI. The results document the importance of affective-relational experiences in the development of childhood obesity. The results also highlight the apparent fact that regardless of individual and family characteristics, the experience of even short-term social rejection can activate obesity-risk behaviors which deplete children's self-regulatory mechanisms, thereby resulting in more consumption of high-caloric food.
    MeSH term(s) Adult ; Body Mass Index ; Child ; Energy Intake ; Female ; Humans ; Male ; Maternal Behavior/psychology ; Middle Aged ; Mother-Child Relations/psychology ; Mothers/psychology ; Pediatric Obesity/psychology ; Psychological Distance ; Risk Factors ; Self Report ; Social Isolation/psychology ; Surveys and Questionnaires
    Language English
    Publishing date 2019-10-18
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1461347-5
    ISSN 1095-8304 ; 0195-6663
    ISSN (online) 1095-8304
    ISSN 0195-6663
    DOI 10.1016/j.appet.2019.104494
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: PHOTORECEPTOR OUTER SEGMENT IS EXPANDED IN THE FELLOW EYE OF PATIENTS WITH UNILATERAL CENTRAL SEROUS CHORIORETINOPATHY.

    Borrelli, Enrico / Battista, Marco / Gelormini, Francesco / Gabela, Maria C / Pennisi, Flavia / Quarta, Alberto / Pezzella, Mario / Sacconi, Riccardo / Querques, Lea / Bandello, Francesco / Querques, Giuseppe

    Retina (Philadelphia, Pa.)

    2020  Volume 41, Issue 2, Page(s) 296–301

    Abstract: Purpose: To quantitatively evaluate the photoreceptor structural changes in the fellow unaffected eyes of patients with unilateral central serous chorioretinopathy (CSC).: Methods: This is a retrospective cross-sectional study. We analyzed data from ... ...

    Abstract Purpose: To quantitatively evaluate the photoreceptor structural changes in the fellow unaffected eyes of patients with unilateral central serous chorioretinopathy (CSC).
    Methods: This is a retrospective cross-sectional study. We analyzed data from patients with diagnosis of unilateral CSC, as based on clinical examination and multimodal imaging, who had structural optical coherence tomography obtained. An additional group of age-matched healthy patients was included for comparison. Main outcome measures were as follows: (1) the foveal photoreceptor outer segment lateral surface and (2) the foveal choroidal thickness.
    Results: One hundred and sixty fellow unaffected eyes of 160 unilateral CSC patients and 50 age-matched controls (50 eyes) were included. The mean ± SD age was 51.6 ± 11.1 years (range 28-80 years) in the unilateral CSC group and 52.8 ± 10.8 years (range 31-74 years) in the control group (P = 0.511). The foveal photoreceptor outer segment lateral surface was significantly increased in the unaffected eyes with CSC in the fellow eye (0.068 ± 0.007 mm2) as compared with control eyes (0.060 ± 0.005 mm2, P < 0.0001). The mean ± SD foveal choroidal thickness was 368.0 ± 105.7 µm in the unilateral CSC group and 302.9 ± 92.2 µm in control patients (P < 0.0001). In the Pearson correlation test, the photoreceptor outer segment lateral surface correlated with the choroidal thickness in the CSC group (R = 0.166, P = 0.016) but not in the control group (R = -0.025, P = 0.864).
    Conclusion: Our results corroborate the hypothesis that retinal and choroidal changes affect both eyes of patients with acute/history of unilateral disease. These structural changes could be intended as an imaging evidence of reduced photoreceptor outer segment turnover secondary to retinal pigment epithelium and choroid dysfunction.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Central Serous Chorioretinopathy/diagnosis ; Choroid/pathology ; Cross-Sectional Studies ; Female ; Fluorescein Angiography/methods ; Fundus Oculi ; Humans ; Male ; Middle Aged ; Retinal Photoreceptor Cell Outer Segment/pathology ; Retinal Pigment Epithelium/pathology ; Retrospective Studies ; Tomography, Optical Coherence/methods
    Language English
    Publishing date 2020-05-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603192-4
    ISSN 1539-2864 ; 0275-004X
    ISSN (online) 1539-2864
    ISSN 0275-004X
    DOI 10.1097/IAE.0000000000002846
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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