Low-frequency stimulation (LFS) is used to induce long-term depression (LTD) and depotentiation at rodent CA3-CA1 hippocampal synapses. The relationship between the efficacy of LFS induction and postnatal age remains to be clearly defined in rat and had not been studied in mouse. The data presented here show that in acute mouse hippocampal slices LFS-induced LTD and depotentiation at CA3-CA1 synapses are: synapse specific; NMDA receptor-dependent; and metabotropic glutamate (mGlu) receptor type I/II independent. Furthermore LFS-induced LTD is highly age-dependent whilst long-term potentiation (LTP) and depotentiation are not. In slices from very young mice (P6-9) LFS induced a robust and stable LTD (-31.1 +/- 5.9%, n = 8, P < 0.01) of CA1 field excitatory post-synaptic potentials (fEPSPs), measured 55-60 min after conditioning. LFS also induced LTD in slices from mice aged P10-13 and P14-17 (-16.0 +/- 3.0%, n = 35, P < 0.001 and -17.9 +/- 5.5%, n = 12, P < 0.01, respectively). However, LTD was not expressed in slices from animals aged P18-21 ( -7.0 +/- 4.1%, n = 16, P > 0.05) or older.
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http://dx.doi.org/10.1016/j.neulet.2004.04.056 | DOI Listing |
Adv Biomed Res
October 2024
Department of Psychiatry, Psychosomatic Research Center, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Background: This study aimed to compare the efficacy of the two antidepressants, duloxetine and bupropion, on pelvic pain in patients with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS).
Materials And Methods: This single-blind clinical trial was conducted on 68 CP/CPPS patients. The patients with CP/CPPS received either an extended-release formulation of 150 mg/day bupropion (bupropion group) or duloxetine 30 mg/day for 12 weeks (duloxetine group).
Scand J Child Adolesc Psychiatr Psychol
January 2024
Department of Pedagogy and Learning, Linnaeus University, Växjö, Sweden.
Background: Adolescents with substance use problems (SUP) constitute a group expected to face increased mental health problems (MHP). SUP can exacerbate mental health issues while also serving as a coping mechanism. Understanding the interplay between psychological, substance-related, and social factors is crucial for shaping effective interventions for this demographic.
View Article and Find Full Text PDFFront Public Health
December 2024
Department of Surgical Clinic, Qilu Hospital of Shandong University, Jinan, Shandong, China.
Background: Adverse childhood experiences (ACEs) influence depressive symptoms. Depressive symptoms were heterogeneous from the perspective of life course.
Objective: To explore the effects of ACEs on the trajectory of depressive symptoms in China.
Anesth Analg
December 2024
From the Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas.
Background: Racial and ethnic disparities in health care delivery can lead to inadequate peripartum pain management and associated adverse maternal outcomes. An epidural blood patch (EBP) is the definitive treatment for moderate to severe postdural puncture headache (PDPH), a potentially debilitating neuraxial anesthesia complication associated with significant maternal morbidity if undertreated. In this nationwide study, we examine the racial and ethnic disparities in the inpatient utilization of EBP after obstetric PDPH in the United States.
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