Gert J ter Horst | University of Groningen (original) (raw)
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Papers by Gert J ter Horst
Progress in Neurobiology, 1987
Food Research International, 2015
The Journal of Comparative Neurology, 1999
A polysynaptic pathway is proposed to transmit light information from the retina through the supr... more A polysynaptic pathway is proposed to transmit light information from the retina through the suprachiasmatic nucleus of the hypothalamus (SCN) to the pineal. In the present study, the powerful transneuronal tracer, pseudorabies virus (PRV), was used to provide a detailed description of this pathway. PRV injected into the pineal subsequently labeled the superior cervical ganglion, the intermediolateral column of the upper thoracic cord, the autonomic division of the paraventricular nucleus of the hypothalamus (PVN), and the SCN. Neurons in the autonomic division of the PVN were the only PRV-labeled neurons in the hypothalamus shown to receive input from the SCN as demonstrated by the presence of vasoactive intestinal polypeptide axonal contacts. This observation concurred with the presence of ventrally placed neurons in the SCN that could only be observed a day after the appearance of PVN-labeled neurons. Nevertheless the majority of the neurons were found in the dorsomedial position of the SCN, associated with the vasopressin-containing population of SCN neurons. Confocal laser scanning microscopy showed double-labeled neurons containing PRV and vasopressin or PRV and vasoactive intestinal polypeptide. Specificity of tracing was also established by prior removal of the superior cervical ganglion, resulting in a complete absence of the tracer but in the pineal. Thus, the present study provides the anatomical basis for circadian control of melatonin secretion.
Neuroscience letters, 1991
We have studied the localization, the morphology and sources of serotonergic input on the primary... more We have studied the localization, the morphology and sources of serotonergic input on the primary afferent neurons in the mesencephalic trigeminal nucleus (Me5) of the rat with light and electronmicroscopy immunocytochemistry and with anterograde and retrograde neuroanatomical tract tracing methods. Me5 neurons were found to receive a serotonergic input that is part of a serotonergic fibre plexus extending over the neighbouring parabrachial nucleus and locus coeruleus. These serotonergic afferents originate predominantly from serotonergic cells in the dorsal raphe nucleus.
Brain Research Bulletin, 1988
Brain Research, 1985
374 Brain Research. 329 ( 19851374 -37~;[Slscxic~BRE 20675The course of paraventricular hypothala... more 374 Brain Research. 329 ( 19851374 -37~;[Slscxic~BRE 20675The course of paraventricular hypothalamic efferents to autonomic structures inmedulla and spinal cordP. GM LUITEN, GJ ter HORST, H. KARST and AB STEFFENSDepartment of Animal Physiology, State ...
Neuroscience Letters, 1990
Frontiers in Neural Circuits
International Journal of Research in Marketing
PloS one, 2017
The ventral emotion network-encompassing the amygdala, insula, ventral striatum, and ventral regi... more The ventral emotion network-encompassing the amygdala, insula, ventral striatum, and ventral regions of the prefrontal cortex-has been associated with the identification of emotional significance of perceived external stimuli and the production of affective states. Functional magnetic resonance imaging (fMRI) studies investigating chemosensory stimuli have associated parts of this network with pleasantness coding. In the current study, we independently analyzed two datasets in which we measured brain responses to flavor stimuli in young adult men. In the first dataset, participants evaluated eight regular off the shelf drinking products while participants evaluated six less familiar oral nutritional supplements (ONS) in the second dataset. Participants provided pleasantness ratings 20 seconds after tasting. Using independent component analysis (ICA) and mixed effect models, we identified one brain network in the regular products dataset that was associated with flavor pleasantness. ...
Nutrition and Cancer, 2016
Clinical Nutrition, 2016
Taste and smell changes due to chemotherapy may contribute to the high prevalence of overweight i... more Taste and smell changes due to chemotherapy may contribute to the high prevalence of overweight in testicular cancer patients (TCPs). This study investigates the taste and smell function, dietary intake, food preference, and body composition in TCPs before, during, and up to 1 year after cisplatin-based chemotherapy. Twenty-one consecutive TCPs participated. At baseline TCPs were compared to healthy controls (N = 48). Taste strips and 'Sniffin' Sticks' were used to determine psychophysical taste and smell function. Subjective taste, smell, appetite, and hunger were assessed using a questionnaire. Dietary intake was analyzed using a food frequency questionnaire. Food preference was assessed using food pictures varying in taste (sweet/savoury) and fat or protein content. A Dual-Energy X-ray Absorptiometry (DEXA) scan was performed to measure whole body composition. Compared to controls, TCPs had a lower smell threshold (P = 0.045) and lower preference for high fat sweet foods at baseline (P = 0.024). Over time, intra-individual psychophysical taste and smell function was highly variable. The salty taste threshold increased at completion of chemotherapy compared to baseline (P = 0.006). A transient decrease of subjective taste, appetite, and hunger feelings was observed per chemotherapy cycle. The percentage of fat mass increased during chemotherapy compared to baseline, while the lean mass and bone density decreased (P < 0.05). Coping strategies regarding subjective taste impairment should especially be provided during the first week of each chemotherapy cycle. Since the body composition of TCPs already had changed at completion of chemotherapy, intervention strategies to limit the impact of cardiovascular risk factors should probably start during treatment.
Supportive Care in Cancer, 2016
Progress in Neurobiology, 1987
Food Research International, 2015
The Journal of Comparative Neurology, 1999
A polysynaptic pathway is proposed to transmit light information from the retina through the supr... more A polysynaptic pathway is proposed to transmit light information from the retina through the suprachiasmatic nucleus of the hypothalamus (SCN) to the pineal. In the present study, the powerful transneuronal tracer, pseudorabies virus (PRV), was used to provide a detailed description of this pathway. PRV injected into the pineal subsequently labeled the superior cervical ganglion, the intermediolateral column of the upper thoracic cord, the autonomic division of the paraventricular nucleus of the hypothalamus (PVN), and the SCN. Neurons in the autonomic division of the PVN were the only PRV-labeled neurons in the hypothalamus shown to receive input from the SCN as demonstrated by the presence of vasoactive intestinal polypeptide axonal contacts. This observation concurred with the presence of ventrally placed neurons in the SCN that could only be observed a day after the appearance of PVN-labeled neurons. Nevertheless the majority of the neurons were found in the dorsomedial position of the SCN, associated with the vasopressin-containing population of SCN neurons. Confocal laser scanning microscopy showed double-labeled neurons containing PRV and vasopressin or PRV and vasoactive intestinal polypeptide. Specificity of tracing was also established by prior removal of the superior cervical ganglion, resulting in a complete absence of the tracer but in the pineal. Thus, the present study provides the anatomical basis for circadian control of melatonin secretion.
Neuroscience letters, 1991
We have studied the localization, the morphology and sources of serotonergic input on the primary... more We have studied the localization, the morphology and sources of serotonergic input on the primary afferent neurons in the mesencephalic trigeminal nucleus (Me5) of the rat with light and electronmicroscopy immunocytochemistry and with anterograde and retrograde neuroanatomical tract tracing methods. Me5 neurons were found to receive a serotonergic input that is part of a serotonergic fibre plexus extending over the neighbouring parabrachial nucleus and locus coeruleus. These serotonergic afferents originate predominantly from serotonergic cells in the dorsal raphe nucleus.
Brain Research Bulletin, 1988
Brain Research, 1985
374 Brain Research. 329 ( 19851374 -37~;[Slscxic~BRE 20675The course of paraventricular hypothala... more 374 Brain Research. 329 ( 19851374 -37~;[Slscxic~BRE 20675The course of paraventricular hypothalamic efferents to autonomic structures inmedulla and spinal cordP. GM LUITEN, GJ ter HORST, H. KARST and AB STEFFENSDepartment of Animal Physiology, State ...
Neuroscience Letters, 1990
Frontiers in Neural Circuits
International Journal of Research in Marketing
PloS one, 2017
The ventral emotion network-encompassing the amygdala, insula, ventral striatum, and ventral regi... more The ventral emotion network-encompassing the amygdala, insula, ventral striatum, and ventral regions of the prefrontal cortex-has been associated with the identification of emotional significance of perceived external stimuli and the production of affective states. Functional magnetic resonance imaging (fMRI) studies investigating chemosensory stimuli have associated parts of this network with pleasantness coding. In the current study, we independently analyzed two datasets in which we measured brain responses to flavor stimuli in young adult men. In the first dataset, participants evaluated eight regular off the shelf drinking products while participants evaluated six less familiar oral nutritional supplements (ONS) in the second dataset. Participants provided pleasantness ratings 20 seconds after tasting. Using independent component analysis (ICA) and mixed effect models, we identified one brain network in the regular products dataset that was associated with flavor pleasantness. ...
Nutrition and Cancer, 2016
Clinical Nutrition, 2016
Taste and smell changes due to chemotherapy may contribute to the high prevalence of overweight i... more Taste and smell changes due to chemotherapy may contribute to the high prevalence of overweight in testicular cancer patients (TCPs). This study investigates the taste and smell function, dietary intake, food preference, and body composition in TCPs before, during, and up to 1 year after cisplatin-based chemotherapy. Twenty-one consecutive TCPs participated. At baseline TCPs were compared to healthy controls (N = 48). Taste strips and 'Sniffin' Sticks' were used to determine psychophysical taste and smell function. Subjective taste, smell, appetite, and hunger were assessed using a questionnaire. Dietary intake was analyzed using a food frequency questionnaire. Food preference was assessed using food pictures varying in taste (sweet/savoury) and fat or protein content. A Dual-Energy X-ray Absorptiometry (DEXA) scan was performed to measure whole body composition. Compared to controls, TCPs had a lower smell threshold (P = 0.045) and lower preference for high fat sweet foods at baseline (P = 0.024). Over time, intra-individual psychophysical taste and smell function was highly variable. The salty taste threshold increased at completion of chemotherapy compared to baseline (P = 0.006). A transient decrease of subjective taste, appetite, and hunger feelings was observed per chemotherapy cycle. The percentage of fat mass increased during chemotherapy compared to baseline, while the lean mass and bone density decreased (P < 0.05). Coping strategies regarding subjective taste impairment should especially be provided during the first week of each chemotherapy cycle. Since the body composition of TCPs already had changed at completion of chemotherapy, intervention strategies to limit the impact of cardiovascular risk factors should probably start during treatment.
Supportive Care in Cancer, 2016