Effects of glutamate antibodies and F(ab´)2 fragments of glutamate antibodies on the anxiety level in aging C57Bl/6 mice DOI Open Access
L. A. Vetrilé, Zakharova Ia, Lobanov Av

et al.

Zhurnal «Patologicheskaia fiziologiia i eksperimental`naia terapiia», Journal Year: 2023, Volume and Issue: 67(3), P. 21 - 28

Published: Oct. 11, 2023

Введение. Высокая степень личностных тревожных расстройств выявляется у 96% пожилых и 100% людей старческого возраста, а 50% 56% лиц старше 75 лет наблюдается повышение реактивной тревожности. Несмотря на наличие большого арсенала фармакологических средств для лечения расстройств, перспективным остается разработка лекарственных препаратов основе антител их фрагментов, благодаря таким свойствам, как специфичность, метаболическая активность. Ранее в опытах мышах BALB/C было показано снижение уровня тревожности при однократном внутрибрюшинном введении к глутамату. В стареющих экспериментальных моделях болезни Альцгеймера, показан антиамнестический эффект интраназальном аффинно-очищенных поликлональных Цель исследования – изучение влияния интраназального введения глутамату F(ab´)2 фрагментов уровень мышей C57Bl/6. Методика. Исследование выполнено линии C57Bl/6 возрасте 12 мес. Мыши были разделены три группы: две опытные группы получали интраназально растворенные физиологическом растворе поликлональные моноспецифические антитела (АТ- ГЛУ) фрагменты АТ- ГЛУ соответственно дозе 250 мкг/кг объеме 4 мкл ежедневно течение 3 дней. контрольной физиологический раствор том же объеме. Оценивали поведенческую активность тесте «Открытое поле» условиях теста «приподнятый крестообразный лабиринт». Результаты. Интраназальное введение стареющим мышам АТ-ГЛУ приводило значимому увеличению количества посещений времени пребывания центре поля, снижению углах стоек открытого поля сравнении с животными контроля. Анализ результатов тестирования приподнятом крестообразном лабиринте показал, что мыши, получавшие АТ-ГЛУ, существенно увеличивали время, проведенное открытых рукавах лабиринта, также число реакций «свешивания» (заглядывание под лабиринт) по сравнению мышами группы, свидетельствует о снижении страха. Заключение. Полученные данные свидетельствуют страха C57Bl/6, получавших Introduction. Anxiety disorder occurs in approximately 15-25% of the adult population. A high degree anxious personality disorders was found old people and very people, whereas older than had increased reactive anxiety. In persistent anxiety, production β-amyloid increases contributes to development neurodegenerative diseases age. Despite availability a large arsenal pharmacological agents for treatment anxiety disorders, drugs based on antibodies their fragments is promising due specificity, activity, metabolic activity. Previous experiments mice showed decrease level after single intraperitoneal injection glutamate antibodies. Experiments aging experimental models Alzheimer’s disease demonstrated an anti-amnesic effect affinity-purified polyclonal administered intranasally. The aim study evaluate intranasal mice. Methods. performed 12-month-old Mice were divided into three groups: two groups received monospecific (AT- GLU) AT- GLU. dissolved saline intranasally at dose µg/kg volume µl, daily days. control group same volume. behavioral activity assessed by open field test elevated plus maze test. Results. Intranasal administration GLU AT-GLU resulted significant increase number visits time spent center field, corners, rears corners compared group. that treated with significantly arms maze, as well unprotected head dips group, which indicated fear. Conclusion. results possible fear antibodies, suggested anxiolytic fragments.

Language: Русский

Oxytocin enhances acquisition in a social trust task in mice, whereas both oxytocin and its antagonist block trust violation learning DOI
Samuel Budniok, Zsuzsanna Callaerts‐Vegh, Marian J. Bakermans‐Kranenburg

et al.

Neuropharmacology, Journal Year: 2025, Volume and Issue: unknown, P. 110389 - 110389

Published: Feb. 1, 2025

Language: Английский

Citations

1

Dorsal peduncular cortex activity modulates affective behavior and fear extinction in mice DOI
Justin J. Botterill,

Abdessattar Khlaifia,

Ryan Appings

et al.

Neuropsychopharmacology, Journal Year: 2024, Volume and Issue: 49(6), P. 993 - 1006

Published: Jan. 17, 2024

Language: Английский

Citations

8

Western diet-induced cognitive and metabolic dysfunctions in aged mice are prevented by rosmarinic acid in a sex-dependent fashion DOI Creative Commons
Letizia Giona, Chiara Musillo,

G. Cristofaro

et al.

Clinical Nutrition, Journal Year: 2024, Volume and Issue: 43(10), P. 2236 - 2248

Published: Aug. 18, 2024

Unhealthy lifestyles, such as chronic consumption of a Western Diet (WD), have been associated with increased systemic inflammation and oxidative stress (OS), condition that may favour cognitive dysfunctions during aging. Polyphenols, rosmarinic acid (RA) buffer low-grade OS, characterizing the aging brain is sustained by WD, promoting healthspan. The aim this study was to evaluate ability RA prevent decline in mouse model WD-driven unhealthy gain knowledge on specific molecular pathways modulated within brain.

Language: Английский

Citations

4

Dietary phytoestrogens recalibrate socioemotional behavior in C57Bl/6J mice in a sex- and timing-dependent manner DOI
Carel W. le Roux, Amy Farthing, Elizabeth K. Lucas

et al.

Hormones and Behavior, Journal Year: 2025, Volume and Issue: 168, P. 105678 - 105678

Published: Jan. 17, 2025

Language: Английский

Citations

0

Modulation of temporoammonic-CA1 synapses by neuropeptide Y is through Y1 receptors in mice DOI

Mariana A. Cortes,

Aundrea F. Bartley, Qin Li

et al.

Neuropeptides, Journal Year: 2025, Volume and Issue: 110, P. 102504 - 102504

Published: Feb. 3, 2025

Language: Английский

Citations

0

Minding the Gap: Exploring Neuroinflammatory and Microglial Sex Differences in Alzheimer’s Disease DOI Open Access
Erin G. Reed-Geaghan, Phaedra R. Keller-Norrell

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(24), P. 17377 - 17377

Published: Dec. 12, 2023

Research into Alzheimer's Disease (AD) describes a link between AD and the resident immune cells of brain, microglia. Further, this suspected is thought to have underlying sex effects, although mechanisms these effects are only just beginning be understood. Many insights result policies put in place by funding agencies such as National Institutes Health (NIH) consider biological variable (SABV) move towards precision medicine due continued lackluster therapeutic options. The purpose review provide an updated assessment current research that summarizes differences pertaining microglia their varied responses AD.

Language: Английский

Citations

9

Age-related differences in affective behaviors in mice: possible role of prefrontal cortical-hippocampal functional connectivity and metabolomic profiles DOI Creative Commons
Marcelo Febo, Rohit Mahar, Nicholas Rodriguez

et al.

Frontiers in Aging Neuroscience, Journal Year: 2024, Volume and Issue: 16

Published: March 8, 2024

Introduction The differential expression of emotional reactivity from early to late adulthood may involve maturation prefrontal cortical responses negative valence stimuli. In mice, age-related changes in affective behaviors have been reported, but the functional neural circuitry warrants further investigation. Methods We assessed age variations and connectivity male female C57BL6/J mice. Mice aged 10, 30 60 weeks (wo) were tested over 8 for open field activity, sucrose preference, social interactions, fear conditioning, neuroimaging. Prefrontal hippocampal tissues excised metabolomics. Results Our results indicate that young old mice differ significantly behavioral, connectome cortical-hippocampal metabolome. Young show a greater responsivity novel environmental stimuli compared older Conversely, middle-aged (60wo group) display variable patterns conditioning during re-testing modified context. Functional between temporal cortical/auditory cortex network subregions anterior cingulate ventral hippocampus, modularity assortative mixing nodes was stronger versus adult Metabolome analyses identified differences several essential amino acids 10wo other groups. Discussion support ‘emotionality’ across distinct stages mouse lifespan involving prefrontal-hippocampal neurochemistry.

Language: Английский

Citations

2

Sex differences in avoidance behavior and cued threat memory dynamics in mice: Interactions between estrous cycle and genetic background DOI Creative Commons

Garret L. Ryherd,

Averie L. Bunce,

Haley A. Edwards

et al.

Hormones and Behavior, Journal Year: 2023, Volume and Issue: 156, P. 105439 - 105439

Published: Oct. 7, 2023

Language: Английский

Citations

6

Plant extracts and omega-3 improve short-term memory and modulate the microbiota-gut-brain axis in D-Galactose model mice DOI Creative Commons

M. Martín,

Milan Boulaire,

Céline Lucas

et al.

Journal of Nutrition, Journal Year: 2024, Volume and Issue: 154(12), P. 3704 - 3717

Published: Sept. 25, 2024

Language: Английский

Citations

1

Dorsal peduncular cortex activity modulates affective behavior and fear extinction in mice DOI Creative Commons
Justin J. Botterill,

Abdessattar Khlaifia,

Ryan Appings

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: April 28, 2023

Abstract The medial prefrontal cortex (mPFC) is critical to cognitive and emotional function underlies many neuropsychiatric disorders, including mood, fear anxiety disorders. In rodents, disruption of mPFC activity affects anxiety- depression-like behavior, with specialized contributions from its subdivisions. rodent divided into the dorsomedial (dmPFC), spanning anterior cingulate (ACC) dorsal prelimbic (PL), ventromedial (vmPFC), which includes ventral PL, infralimbic (IL), in some studies peduncular (DP) tenia tecta (DTT). DP/DTT have recently been implicated regulation stress- induced sympathetic responses via projections hypothalamus. While implicate PL IL anxiety-, contribution affective behavior remains unknown. Here, we used chemogenetics optogenetics bidirectionally modulate examine effects on behaviors, stress C57BL/6J mice. Acute chemogenetic activation significantly increased anxiety-like open field elevated plus maze tests, as well passive coping tail suspension test. also led an increase serum corticosterone levels facilitated auditory extinction learning retrieval. Activation hypothalamus (DMH) acutely decreased freezing at baseline during learning, but did not alter behavior. These findings point a new regulator

Language: Английский

Citations

2