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Aberrant functional connectivity of basal forebrain subregions with cholinergic system in short-term and chronic insomnia disorder
Ma X, Fu S, Yin Y, Wu Y, Wang T, Xu G, Liu M, Xu Y, Tian J, Jiang G (2021) Aberrant functional connectivity of basal forebrain subregions with cholinergic system in short-term and chronic insomnia disorder. J Affect Disord 278:481-487. doi: 10.1016/j.jad.2020.09.103
Summary: Previous animal studies have identified the cholinergic basal forebrain (CBF) as a crucial structure in sleep-wake cycle modulation and lesion or inactivation of the BF has been found to increase delta electroencephalogram activity, disturb behavioral arousal, and reduce sleep. They reference Kaur et al. using 192-IgG-SAP to lesion the CBF to examine the role of these neurons in sleep behavior.
Related Products: 192-IgG-SAP (Cat. #IT-01)
Measuring attention in rats with a visual signal detection task: Signal intensity vs. signal duration
Holloway Z, Koburov R, Hawkey A, Levin ED (2020) Measuring attention in rats with a visual signal detection task: Signal intensity vs. signal duration. Pharmacol Biochem Behav 199:173069. doi: 10.1016/j.pbb.2020.173069
Summary: Drug-induced effects have been used to demonstrate the construct validity of operant attention tasks, as well as to assess the pharmacological systems that underlie cognitive processes, such as attention, short-term memory and reaction time, either by interrupting or enhancing performance.
Related Products: 192-IgG-SAP (Cat. #IT-01)
Extracellular levels of the sleep homeostasis mediator, adenosine, are regulated by glutamatergic neurons during wakefulness and sleep
Sun MJ, Tang Y (2020) Extracellular levels of the sleep homeostasis mediator, adenosine, are regulated by glutamatergic neurons during wakefulness and sleep. Purinergic Signal 16(4):475-476. doi: 10.1007/s11302-020-09758-3
Summary: Blanco-Centurion et al. investigated the role of cholinergic neurons in the BF by administering 192–IgG–SAP to lesion them, but surprisingly the results indicated that adenosine from cholinergic neurons in BF are not essential to sleep induction.
Related Products: 192-IgG-SAP (Cat. #IT-01)
Characterizing the neural substrate of reward with the use of specific brain lesions
Cromwell HC (2021) Characterizing the neural substrate of reward with the use of specific brain lesions. Fakhoury M (Ed.): The Brain Reward System. Neuromethods. 165. Humana, New York, NY doi: 10.1007/978-1-0716-1146-3_3
Summary: This review is focused on experimental lesions and work using the rodent model examining the neural substrates of reward processing. Saporin is listed as a neurotoxin used to target selective neuronal populations with success.
Related Products: 192-IgG-SAP (Cat. #IT-01)
Long-term potentiation in the hippocampal CA3 to CA1 synapses may be induced in vivo by activation of septal cholinergic inputs.
Dobryakova YV, Stepanichev MY, Markevich VA, Bolshakov AP (2020) Long-term potentiation in the hippocampal CA3 to CA1 synapses may be induced in vivo by activation of septal cholinergic inputs. Int J Neurosci 23:1-7. doi: 10.1080/00207454.2020.1822834
Objective: To clarify the role of septal input in the development of long-term potentiation (LTP) in this synapse.
Summary: Elimination of septal cholinergic neurons by 192-IgG-SAP abolished LTP development in both experimental series. This suppression of LTP in animals with a cholinergic deficit was not due to loss of hippocampal neurons.
Usage: Rats received intraseptal injections of 192-IgG-SAP (1.5 μg).
Related Products: 192-IgG-SAP (Cat. #IT-01)
Evaluation of the adverse effects of chronic exposure to donepezil (an acetylcholinesterase inhibitor) in adult zebrafish by behavioral and biochemical assessments.
Audira G, Ngoc Anh NT, Ngoc Hieu BT, Malhotra N, Siregar P, Villalobos O, Villaflores OB, Ger TR, Huang JC, Chen KH, Hsiao CD (2020) Evaluation of the adverse effects of chronic exposure to donepezil (an acetylcholinesterase inhibitor) in adult zebrafish by behavioral and biochemical assessments. Biomolecules 10(9):1340. doi: 10.3390/biom10091340 PMID: 32962160
Objective: The authors use zebrafish to conduct a deeper analysis of the potential adverse effects of DPZ on the short-term memory and behaviors of normal zebrafish by performing multiple behavioral and biochemical assays.
Summary: Chronic waterborne exposure to donepezil (DPZ) can severely induce adverse effects on normal zebrafish in a dose-dependent manner.
Related Products: 192-IgG-SAP (Cat. #IT-01)
See Also:
Identification of multiple targets in the fight against Alzheimer’s disease
Giannoni P, Fossati S, Claeysen S, Marcello E, eds (2020) Identification of multiple targets in the fight against Alzheimer’s disease. Front Aging Neurosci 12:169. doi: 10.3389/fnagi.2020.00169
Summary: A collection of 20 articles that depict a broad representation of the most impactful advances in Alzheimer’s disease (AD) comprehension and therapeutic openings.
Related Products: 192-IgG-SAP (Cat. #IT-01), mu p75-SAP (Cat. #IT-16)
Acetylcholine and spontaneous recognition memory in rodents and primates.
Easton A, Barros M, Lever C (2020) Acetylcholine and spontaneous recognition memory in rodents and primates. Curr Top Behav Neurosci 45:29-45. doi: 10.1007/7854_2020_132
Summary: Review of lesioning designed to specifically target cells that express acetylcholine as a transmitter.
Related Products: 192-IgG-SAP (Cat. #IT-01)
Cholinergic signaling dynamics and cognitive control of attention.
Parikh V, Bangasser DA (2020) Cholinergic signaling dynamics and cognitive control of attention. Shoaib M., Wallace T (Ed.): Behavioral Pharmacology of the Cholinergic System. Current Topics in Behavioral Neurosciences. 45:71-87. Springer, Cham doi: 10.1007/7854_2020_133
Summary: A plethora of studies conducted in rodents demonstrated that selective lesions of BF cholinergic neurons and their cortical inputs produced by the immunotoxin 192-IgG-SAP impair performance in various tasks of attention.
Related Products: 192-IgG-SAP (Cat. #IT-01)
Intracerebroventricular administration of 192IgG-saporin alters the state of microglia in the neocortex.
Volobueva MN, Dobryakova YV, Manolova AO, Stepanichev MY, Kvichansky AA, Gulyaeva NV, Markevich VA, Bolshakov AP (2020) Intracerebroventricular administration of 192IgG-saporin alters the state of microglia in the neocortex. Neurochem J 14(1):37-42. doi: 10.1134/S1819712420010213
Objective: The effect of intracerebroventricular (icv) immunotoxin administration on the state of microglia in tissues adjacent to the ventricle (striatum and parietal cortex) and remotely located but receiving innervation from the medial septal region and diagonal band of Broca (entorhinal cortex and olfactory bulbs).
Summary: 1.5 months after the administration of immunotoxin, microglia are activated only in the neocortical areas, not in the striatum or olfactory bulbs.
Usage: Injected bilaterally at a dose of 4 μg in each ventricle.
Related Products: 192-IgG-SAP (Cat. #IT-01)