scholarly journals Age-Related Changes in Rat Hippocampal Theta Rhythms: A Difference between Type 1 and Type 2 Theta.

1999 ◽  
Vol 61 (5) ◽  
pp. 543-548 ◽  
Author(s):  
Yasuyuki Abe ◽  
Keiichiro Toyosawa
2019 ◽  
Vol 4 (1) ◽  
pp. e000369 ◽  
Author(s):  
Henrik Faatz ◽  
Marie-Louise Farecki ◽  
Kai Rothaus ◽  
Matthias Gutfleisch ◽  
Daniel Pauleikhoff ◽  
...  

ObjectiveOptical coherence tomography angiography (OCT-A) enables detailed visualisation of the vascular structure of choroidal neovascularisation (CNV). The aim of this study was to determine whether mathematically ascertained OCT-A vascular parameters of type 1 and type 2 CNV in exudative age-related macular degeneration (AMD) change during antivascular endothelial growth factor (anti-VEGF) treatment. The OCT-A vascular parameters were also compared with previously obtained activity parameters (fluid distribution on spectral domain OCT (SD-OCT)) to establish whether they could potentially be used as further ‘activity parameters’ for assessment of anti-VEGF treatment.Methods and AnalysisWe evaluated 27 eyes of 27 patients (mean follow-up 9.8 months) with type 1, type 2 or mixed CNV who had received anti-VEGF treatment (IVAN scheme). The parameters analysed were area (aCNV), total length of all vessels (tlCNV), overall number of vascular segments (nsCNV) and fractal dimension (FD) of the CNV. The changes in each of these parameters were correlated with the central foveal thickness (CFT).ResultsRegression and renewed perfusion of the CNV corresponded with the decrease or increase, respectively, of macular fluid distribution on SD-OCT. The increase and decrease of CFT during anti-VEGF treatment were highly significantly correlated with changes in FD (p<0.00001), aCNV (p<0.00001), tlCNV (p<0.00001) and nsCNV (p<0.00001).ConclusionOCT-A enables detailed analysis of AMD with regard to FD, aCNV, tlCNV and nsCNV. As the changes in these parameters correlate closely with changes on SD-OCT, they can be used as new activity parameters, alongside fluid distribution, for assessment of treatment effect and as parameters of stabilisation or the need for repeated treatment.


2006 ◽  
Vol 7 (3) ◽  
pp. 350-351
Author(s):  
G. Penno ◽  
D. Lucchesi ◽  
L. Pucci ◽  
C. Fotino ◽  
S. Triscornia ◽  
...  

2013 ◽  
Vol 26 (4) ◽  
pp. 481-487 ◽  
Author(s):  
C. Campino ◽  
A. Martinez-Aguayo ◽  
R. Baudrand ◽  
C. A. Carvajal ◽  
M. Aglony ◽  
...  

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Kyung Tae Kim ◽  
Ju Byung Chae ◽  
Seungheon Lee ◽  
Eoi Jong Seo ◽  
Dong Yoon Kim

Abstract Background To analyze the long-term effects of persistent subretinal fluid (SRF) on visual/anatomic outcomes according to the type of macular neovascularization (MNV) during relaxed treat-and-extend regimen with anti-vascular endothelial growth factor (anti-VEGF) agents in age-related macular degeneration (AMD) patients. Methods Patients with fovea-involving type 1 or type 2 MNV, treated with a relaxed treat-and-extend regimen for 2 years were retrospectively reviewed. Eyes with SRF observed more than three times per year were defined as the ‘persistent SRF (+) group’. To exclude the effects of IRF as much as possible, the eyes with persistent IRF were excluded. The effects of persistent SRF on the best-corrected visual acuity (BCVA), central subfield retinal thickness (CST), and changes in the photoreceptor layer (PRL) thickness and outer retinal bands (external limiting membrane, ellipsoid zone, and cone outer segment tip line) after anti-VEGF injection were analyzed for each MNV type. Results Seventy-seven eyes with type 1 MNV (44 eyes with persistent SRF) and 53 eyes with type 2 MNV (18 eyes with persistent SRF) were enrolled. Following a relaxed treat-and-extend regimen with anti-VEGF agents, BCVA and CST improved for each MNV type. In comparison between persistent SRF (+) and persistent SRF (−) group, there were no differences in the amount of change in BCVA and CST between the two groups for each MNV type during 2-year follow-up periods. In addition, there were no differences in the amount of reduction in PRL thickness and state of the outer retinal bands between the two groups for each MNV type. Conclusions Using a relaxed treat-and-extend regimen with anti-VEGF agents, persistent SRF did not have additional effects on visual and anatomic outcomes by 2 years, regardless of the MNV type.


2020 ◽  
Author(s):  
Emily L. Goldberg ◽  
Irina Shchukina ◽  
Yun-Hee Youm ◽  
Christina D. Camell ◽  
Tamara Dlugos ◽  
...  

AbstractAging impairs the integrated immunometabolic responses which have evolved to maintain core body temperature in homeotherms to survive cold-stress, infections, and dietary restriction. Adipose tissue inflammation regulates the thermogenic stress response but how adipose tissue-resident cells instigate thermogenic failure in aged are unknown. Here, we define alterations in the adipose-resident immune system and identify that type 2 innate lymphoid cells (ILC2) are lost in aging. Restoration of ILC2 numbers in aged mice to levels seen in adults through IL-33 supplementation failed to rescue old mice from metabolic impairment and cold-induced lethality. Transcriptomic analyses revealed intrinsic defects in aged ILC2, and adoptive transfer of adult ILC2 are sufficient to protect old mice against cold. Thus, the functional defects in adipose ILC2 during aging drive thermogenic failure.One Sentence SummaryAge-related changes in adipose tissue drive reprogramming of ILC2 that leads to impaired cold tolerance


2015 ◽  
Vol 62 (3) ◽  
pp. 235-241 ◽  
Author(s):  
Hitomi Nakayama ◽  
Ichiro Tokubuchi ◽  
Nobuhiko Wada ◽  
Munehisa Tsuruta ◽  
Tsuyoshi Ohki ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document