Search results for "GD"
showing 10 items of 1142 documents
Transient and sustained BOLD signal time courses affect the detection of emotion-related brain activation in fMRI.
2014
A tremendous amount of effort has been dedicated to unravel the functional neuroanatomy of the processing and regulation of emotion, resulting in a well-described picture of limbic, para-limbic and prefrontal regions involved. Studies applying functional magnetic resonance imaging (fMRI) often use the block-wise presentation of stimuli with affective content, and conventionally model brain activation as a function of stimulus or task duration. However, there is increasing evidence that regional brain responses may not always translate to task duration and rather show stimulus onset-related transient time courses. We assume that brain regions showing transient responses cannot be detected in…
Involvement of caspase-3 and GD3 ganglioside in ceramide-induced apoptosis in Farber disease.
2000
Farber's disease (FD) is a rare genetic disorder caused by ceramidase deficiency, which results in ceramide accumulation in lung, liver, colon, skeletal muscle, cartilage, and bone. Although this disease has been symptomatically characterized, little is known about its molecular pathogenetic process. Because recent studies reported that ceramide accumulation induces GD3 ganglioside formation and apoptosis, we investigated, in tissue obtained via colonoscopy from seriously involved patients, the possible involvement of ceramide in FD colonocyte destruction. Histochemical and TUNEL analyses of paraffin-embedded sections revealed that 45 ± 4.3% of FD colonocytes showed morphological signs of …
The Resilient Emotional Brain: A Scoping Review of the Medial Prefrontal Cortex and Limbic Structure and Function in Resilient Adults With a History …
2020
Childhood Maltreatment (CM) is one of the strongest predictors of adult mental illness, though not all adults with CM develop psychopathology. Here, we describe the structure and function of emotional brain regions that may contribute to resilient functioning after CM. We review studies that report medial prefrontal cortex (mPFC), amygdala and hippocampus (‘limbic regions’) structure, function, and/or connections, in resilient (i.e., adults reporting CM without psychopathology) vs. vulnerable (i.e., adults reporting CM with psychopathology), or healthy adults (adults without CM with no psychopatology). We find that resilient adults have larger hippocampal grey and white matter volume, and i…
Three-Factor Structure of Adult Attachment in the Workplace: Comparison of British, French, and Italian Samples
2014
The goal was to compare three-factor and two-factor solutions and construct validity of the Adult Attachment in the Workplace (AAW) questionnaire. Participants were 660 volunteers from three countries (France, Italy, and Great Britain). The two-factor model of Neustadt, Chamorro-Premuzic, & Furnham (2006) and the three-factor theoretical model of Collins and Read (1990) were compared. Construct validity was assessed by calculating correlations among the two- and three-factor AAW, the Workplace Attachment Scale, and the Organizational Commitment Scale. The three-factor structure differentiated between the three attachment styles, i.e., secure, preoccupied, and avoidant. There were modera…
What is French for déjà vu? Descriptions of déjà vu in native French and English speakers
2015
Little is known about how people characterise and classify the experience of deja vu. The term deja vu might capture a range of different phenomena and people may use it differently. We examined the description of deja vu in two languages: French and English, hypothesising that the use of deja vu would vary between the two languages. In French, the phrase deja vu can be used to indicate a veridical experience of recognition - as in "I have already seen this face before". However, the same is not true in English. In an online questionnaire, we found equal rates of deja vu amongst French and English speakers, and key differences in how the experience was described. As expected, the French gro…
Implicit Theories of Child Sexual Exploitation Material Offenders: Cross-Cultural Validation of Interview Findings
2019
Offense-supportive cognitions are thought to result from underlying implicit theories (ITs). As child sexual exploitation material (CSEM) users are a distinct type of sex offender, Bartels and Merdian proposed that CSEM offenders hold five different ITs from those endorsed by contact sex offenders (i.e., Unhappy World, Self as Uncontrollable, Child as Sexual Object, Nature of Harm [CSEM variant], and Self as Collector), linked by an assumption about the Reinforcing Nature of the Internet. This article reports a conceptual content analysis of 23 interviews conducted with CSEM offenders in the United Kingdom and Spain. Support for all CSEM-specific ITs was found across both samples, providing…
Does more favourable handling of the cerebrospinal fluid increase the diagnostic sensitivity of Borrelia burgdorferi sensu lato-specific PCR in Lyme …
2017
Tests for direct detection of Borrelia burgdorferi sensu lato (Bb) in Lyme neuroborreliosis (LNB) are needed. Detection of Bb DNA using PCR is promising, but clinical utility is hampered by low diagnostic sensitivity. We aimed to examine whether diagnostic sensitivity can be improved by the use of larger cerebrospinal fluid (CSF) volumes and faster handling of samples.Patients who underwent CSF examination for LNB were included. We collected two millilitres of CSF for PCR analysis, extracted DNA from the pellets within 24 h and analysed the eluate by two real-time PCR protocols (16S rRNA and OspA). Patients who fulfilled diagnostic criteria for LNB were classified as LNB cases and the rest …
Cells expressing markers of immature neurons in the amygdala of adult humans
2012
The polysialylated form of the neuronal cell adhesion molecule (PSA-NCAM) is expressed by immature neurons in the amygdala of adult mammals, including non-human primates. In a recent report we have also described the presence of PSA-NCAM-expressing cells in the amygdala of adult humans. Although many of these cells have been classified as mature interneurons, some of them lacked mature neuronal markers, suggesting the presence of immature neurons. We have studied, using immunohistochemistry, the existence and distribution of these immature neurons using post mortem material. We have also analysed the presence of proliferating cells and the association between immature neurons and specialise…
Extraction of prefronto-amygdalar pathways by combining probability maps
2008
Many recent studies reported altered functional connectivity within the frontolimbic circuitry in a wide range of neuropsychiatric disorders. However, functional connectivity must rely on structural connections. In this study we applied a novel probabilistic fiber tracking method to assess the structural connectivity between the amygdala and different prefrontal brain regions in vivo. Twenty healthy subjects were investigated with diffusion tensor imaging. Probabilistic fiber tracking was started from the amygdala and different prefrontal brain regions. Resulting probability maps were combined using an extended multiplication of probabilistic maps to identify the most probable anatomical pa…
Evolution of indeterminate hepatocellular nodules at Gd-EOB-DPTA-enhanced MRI in cirrhotic patients
2018
To retrospectively analyze the evolution of indeterminate hepatocellular nodules in cirrhotic patients on serial Gd-EOB-DPTA-enhanced MRI, and to identify predictors of HCC development. This IRB approved study included 33 cirrhotic patients with 69 indeterminate hepatocellular nodules (mean diameter 1.1 cm) at baseline Gd-EOB-DPTA-enhanced MRI and a Gd-EOB-DPTA-enhanced-MRI follow-up of at least 2 years. Two radiologists evaluated size and signal intensity of each nodule at baseline and follow-up. Age, cirrhosis etiology, and HCC history were recorded. Data were compared between nodules that became HCCs at follow-up (HCC) and those that did not (no-HCC). On follow-up, 5/69 nodules became HC…