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minocycline and memory

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https://www.readbyqxmd.com/read/28685618/minocycline-plus-n-acteylcysteine-induces-remyelination-synergistically-protects-oligodendrocytes-and-modifies-neuroinflammation-in-a-rat-model-of-mild-traumatic-brain-injury
#1
Margalit Haber, Jessica James, Justine Kim, Michael Sangobawole, Rachel Irizarry, Johnson Ho, Elena Nikulina, Natalia M Grin'kina, Albana Ramadani, Isabella Hartman, Peter J Bergold
Mild traumatic brain injury afflicts over 2 million people annually and little can be done for the underlying injury. The Food and Drug Administration-approved drugs Minocycline plus N-acetylcysteine (MINO plus NAC) synergistically improved cognition and memory in a rat mild controlled cortical impact (mCCI) model of traumatic brain injury.(3) The underlying cellular and molecular mechanisms of the drug combination are unknown. This study addressed the effect of the drug combination on white matter damage and neuroinflammation after mCCI...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28684969/electroacupuncture-alleviates-postoperative-cognitive-dysfunction-in-aged-rats-by-inhibiting-hippocampal-neuroinflammation-activated-via-microglia-tlrs-pathway
#2
Pei-Pei Feng, Pu Deng, Li-Hua Liu, Qi Ai, Jie Yin, Zhe Liu, Gai-Mei Wang
Neuroinflammation has been suggested to be involved in the pathogenesis of postoperative cognitive dysfunction (POCD). Electroacupuncture (EA) is an irreplaceable method in traditional Chinese medicine that is used for treating neurodegenerative diseases in clinical and experimental studies. The aim of this study was to examine whether EA improves cognitive dysfunction caused by surgery and to investigate the pathological mechanism of TLR2 and TLR4 in the hippocampus of aged rats. A rat model of POCD was established and treated with EA or minocycline...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28599348/a-pilot-open-label-8-week-study-evaluating-the-efficacy-safety-and-tolerability-of-adjunctive-minocycline-for-the-treatment-of-bipolar-i-ii-depression
#3
Joanna K Soczynska, Sidney H Kennedy, Mohammad Alsuwaidan, Rodrigo B Mansur, Madeline Li, Mary Pat McAndrews, Elisa Brietzke, Hanna O Woldeyohannes, Valerie H Taylor, Roger S McIntyre
OBJECTIVES: The objectives of the study were to determine if adjunctive minocycline mitigates depressive symptom severity and improves cognitive function in individuals with bipolar I/II disorder (BD). The study also aimed to determine if changes in depressive and/or cognitive symptoms over the course of treatment were associated with changes in circulating inflammatory cytokine levels. METHODS: A total of 29 (intention-to-treat: n=27) adults meeting DSM-IV-TR criteria for a major depressive episode as part of bipolar I or II disorder (i...
May 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28454931/neuroprotective-effect-of-minocycline-on-cognitive-impairments-induced-by-transient-cerebral-ischemia-reperfusion-through-its-anti-inflammatory-and-anti-oxidant-properties-in-male-rat
#4
Yazdan Naderi, Masoumeh Sabetkasaei, Siavash Parvardeh, Taraneh Moini Zanjani
Memory deficit is the most visible symptom of cerebral ischemia that is associated with loss of pyramidal cells in CA1 region of the hippocampus. Oxidative stress and inflammation may be involved in the pathogenesis of ischemia/reperfusion (I/R) damage. Minocycline, a semi-synthetic tetracycline derived antibiotic, has anti-inflammatory and antioxidant properties. We evaluated the neuroprotective effect of minocycline on memory deficit induced by cerebral I/R in rat. I/R was induced by occlusion of common carotid arteries for 20min...
April 25, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28391017/pretreatment-with-minocycline-restores-neurogenesis-in-the-subventricular-zone-and-subgranular-zone-of-the-hippocampus-after-ketamine-exposure-in-neonatal-rats
#5
Yang Lu, P K Giri, Shan Lei, Juan Zheng, Weisong Li, Ning Wang, Xinlin Chen, Haixia Lu, Zhiyi Zuo, Yong Liu, Pengbo Zhang
Ketamine is commonly used for anesthesia in pediatric patients. Recent studies indicated that ketamine exposure in the developing brain can induce neuroapoptosis and disturb normal neurogenesis, which will result in long-lasting cognitive impairment. Minocycline exerts neuroprotection against a wide range of toxic insults in neurodegenerative disease models. In the present study, we investigated whether the disturbed neurogenesis and behavioral deficits after ketamine neonatal exposure could be alleviated by minocycline...
June 3, 2017: Neuroscience
https://www.readbyqxmd.com/read/28336494/minocycline-reduces-inflammatory-parameters-in-the-brain-structures-and-serum-and-reverses-memory-impairment-caused-by-the-administration-of-amyloid-%C3%AE-1-42-in-mice
#6
Michelle Lima Garcez, Francielle Mina, Tatiani Bellettini-Santos, Franciellen Gonçalves Carneiro, Aline Pereira Luz, Gustavo Luis Schiavo, Matheus Scopel Andrighetti, Maylton Grégori Scheid, Renan Pereira Bolfe, Josiane Budni
Alzheimer's disease (AD) is a neurodegenerative disorder and the most common type of age-related dementia. Cognitive decline, beta-amyloid (Aβ) accumulation, neurofibrillary tangles, and neuroinflammation are the main pathophysiological characteristics of AD. Minocycline is a tetracycline derivative with anti-inflammatory properties that has a neuroprotective effect. The aim of this study was to evaluate the effect of minocycline on memory, neurotrophins and neuroinflammation in an animal model of AD induced by the administration of Aβ (1-42) oligomer...
July 3, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28257293/neuroprotective-effects-of-pretreatment-with-minocycline-on-memory-impairment-following-cerebral-ischemia-in-rats
#7
Yazdan Naderi, Masoumeh Sabetkasaei, Siavash Parvardeh, Taraneh Moini Zanjani
Cerebral ischemia leads to memory impairment that is associated with loss of hippocampal CA1 pyramidal neurons. Neuroinflammation and oxidative stress may be implicated in the pathogenesis of ischemia/reperfusion damage. Minocycline has anti-inflammatory and antioxidant properties. We investigated the neuroprotective effects of minocycline in rats subjected to cerebral ischemia/reperfusion injury. Thirty male rats were divided into three groups: control, sham, and minocycline-pretreated group. Minocycline (40 mg/kg) was injected intraperitoneally immediately before surgery, and then ischemia was induced by occlusion of common carotid arteries for 20 min...
April 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28205533/a-data-driven-approach-for-evaluating-multi-modal-therapy-in-traumatic-brain-injury
#8
Jenny Haefeli, Adam R Ferguson, Deborah Bingham, Adrienne Orr, Seok Joon Won, Tina I Lam, Jian Shi, Sarah Hawley, Jialing Liu, Raymond A Swanson, Stephen M Massa
Combination therapies targeting multiple recovery mechanisms have the potential for additive or synergistic effects, but experimental design and analyses of multimodal therapeutic trials are challenging. To address this problem, we developed a data-driven approach to integrate and analyze raw source data from separate pre-clinical studies and evaluated interactions between four treatments following traumatic brain injury. Histologic and behavioral outcomes were measured in 202 rats treated with combinations of an anti-inflammatory agent (minocycline), a neurotrophic agent (LM11A-31), and physical therapy consisting of assisted exercise with or without botulinum toxin-induced limb constraint...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28183352/combined-effect-of-bcg-vaccination-and-enriched-environment-promote-neurogenesis-and-spatial-cognition-via-a-shift-in-meningeal-macrophage-m2-polarization
#9
Fangfang Qi, Zejie Zuo, Junhua Yang, Saisai Hu, Yang Yang, Qunfang Yuan, Juntao Zou, Kaihua Guo, Zhibin Yao
BACKGROUND: The spatial learning abilities of developing mice benefit from extrinsic cues, such as an enriched environment, with concomitant enhancement in cognitive functions. Interestingly, such enhancements can be further increased through intrinsic Bacillus Calmette-Guérin (BCG) vaccination. RESULTS: Here, we first report that combined neonatal BCG vaccination and exposure to an enriched environment (Enr) induced combined neurobeneficial effects, including hippocampal long-term potentiation, and increased neurogenesis and spatial learning and memory, in mice exposed to the Enr and vaccinated with BCG relative to those in the Enr that did not receive BCG vaccination...
February 10, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28181901/systematic-review-and-meta-analysis-of-the-efficacy-and-safety-of-minocycline-in-schizophrenia
#10
Marco Solmi, Nicola Veronese, Nita Thapa, Silvia Facchini, Brendon Stubbs, Michele Fornaro, André F Carvalho, Christoph U Correll
OBJECTIVE: Our aim was to perform an updated systematic review and meta-analysis on the efficacy and safety of adjunctive minocycline as a treatment of schizophrenia. METHODS: We conducted a PubMed/Scopus database search from inception to 3 February 2016 for randomized, placebo-controlled trials (RCTs), open non-randomized studies, and case reports/series evaluating minocycline in patients with schizophrenia. Random-effects meta-analysis of positive, negative, depressive, and cognitive symptom rating scales, discontinuation and adverse effects rates calculating standardized mean difference (SMD), and risk ratios±95% confidence intervals (CI 95%) were calculated...
February 9, 2017: CNS Spectrums
https://www.readbyqxmd.com/read/28038986/differential-effects-of-minocycline-on-microglial-activation-and-neurodegeneration-following-closed-head-injury-in-the-neonate-rat
#11
L A Hanlon, R Raghupathi, J W Huh
The role of microglia in the pathophysiology of injury to the developing brain has been extensively studied. In children under the age of 4 who have sustained a traumatic brain injury (TBI), markers of microglial/macrophage activation were increased in the cerebrospinal fluid and were associated with worse neurologic outcome. Minocycline is an antibiotic that decreases microglial/macrophage activation following hypoxic-ischemia in neonatal rodents and TBI in adult rodents thereby reducing neurodegeneration and behavioral deficits...
April 2017: Experimental Neurology
https://www.readbyqxmd.com/read/27847283/selective-dentate-gyrus-disruption-causes-memory-impairment-at-the-early-stage-of-experimental-multiple-sclerosis
#12
Vincent Planche, Aude Panatier, Bassem Hiba, Eva-Gunnel Ducourneau, Gerard Raffard, Nadège Dubourdieu, Marlène Maitre, Thierry Lesté-Lasserre, Bruno Brochet, Vincent Dousset, Aline Desmedt, Stéphane H Oliet, Thomas Tourdias
Memory impairment is an early and disabling manifestation of multiple sclerosis whose anatomical and biological substrates are still poorly understood. We thus investigated whether memory impairment encountered at the early stage of the disease could be explained by a differential vulnerability of particular hippocampal subfields. By using experimental autoimmune encephalomyelitis (EAE), a mouse model of multiple sclerosis, we identified that early memory impairment was associated with selective alteration of the dentate gyrus as pinpointed in vivo with diffusion-tensor-imaging (DTI)...
February 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/27497819/minocycline-ameliorates-d-galactose-induced-memory-deficits-and-loss-of-arc-arg3-1-expression
#13
Xu Li, Fen Lu, Wei Li, Jun Xu, Xiao-Jing Sun, Ling-Zhi Qin, Qian-Lin Zhang, Yong Yao, Qing-Kai Yu, Xin-Liang Liang
Dysfunction of learning and memory is widely found in many neurological diseases. Understanding how to preserve the normal function of learning and memory will be extremely beneficial for the treatment of these diseases. However, the possible protective effect of minocycline in memory impairment is unknown. We used the well-established D-galactose rat amnesia model and two behavioral tasks, the Morris water maze and the step-down task, for memory evaluation. Western blot and PCR were used to examine the protein and mRNA levels of Arc/Arg3...
October 2016: Molecular Biology Reports
https://www.readbyqxmd.com/read/27436232/signs-of-enhanced-sleep-and-sleep-associated-memory-processing-following-the-anti-inflammatory-antibiotic-minocycline-in-men
#14
Luciana Besedovsky, Eva-Maria Schmidt, Barbara Linz, Susanne Diekelmann, Tanja Lange, Jan Born
Pro-inflammatory cytokines can promote sleep and neuronal processes underlying memory formation. However, this has mainly been revealed in animal studies. In this double-blind, placebo-controlled within-subject designed study, we examined how changes in the balance between pro- and anti-inflammatory signalling affect sleep and sleep-associated memory consolidation in humans. After learning declarative memory tasks (word pairs, texts) and a procedural memory task (finger tapping) in the evening, 21 healthy young men orally received either 200 mg of the anti-inflammatory antibiotic minocycline or placebo shortly before nocturnal sleep...
July 19, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27357391/minocycline-attenuates-interferon-%C3%AE-induced-impairments-in-rat-fear-extinction
#15
Qiang Bi, Lijuan Shi, Pingting Yang, Jianing Wang, Ling Qin
BACKGROUND: Extinction of conditioned fear is an important brain function for animals to adapt to a new environment. Accumulating evidence suggests that innate immune cytokines are involved in the pathology of psychotic disorders. However, the involvement of cytokines in fear dysregulation remains less investigated. In the present study, we investigated how interferon (IFN)-α disrupts the extinction of conditioned fear and propose an approach to rescue IFN-α-induced neurologic impairment...
2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27291517/chronic-minocycline-treatment-improves-social-recognition-memory-in-adult-male-fmr1-knockout-mice
#16
Suk Yu Yau, Christine Chiu, Mariana Vetrici, Brian R Christie
Fragile X syndrome (FXS) is caused by a mutation in the Fmr1 gene that leads to silencing of the gene and a loss of its gene product, Fragile X mental retardation protein (FMRP). Some of the key behavioral phenotypes for FXS include abnormal social anxiety and sociability. Here we show that Fmr1 knock-out (KO) mice exhibit impaired social recognition when presented with a novel mouse, and they display normal social interactions in other sociability tests. Administering minocycline to Fmr1 KO mice throughout critical stages of neural development improved social recognition memory in the novel mouse recognition task...
October 1, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27130658/neuroinflammation-regulates-cognitive-impairment-in-socially-defeated-mice
#17
Madeline L Pfau, Scott J Russo
Impairments in memory and cognitive function are characteristic symptoms of stress-related disorders, but the relationship between stress and memory is complex. Recent findings suggest that hippocampal inflammatory processes contribute to spatial memory deficits in the rodent social defeat model that can be reversed by anti-inflammatory treatment with minocycline.
June 2016: Trends in Neurosciences
https://www.readbyqxmd.com/read/27108901/-reduction-in-hypoxia-derived-neuroinflammation-and-dysfunctional-glutamate-transporters-by-minocycline-may-restore-hypoxia-injured-cognition-of-neonatal-rat
#18
Hong-Chun Li, Jie Xiao, Yi-Long Huang, Long-Jun Li, Hong Jiang, Li-Xuan Huang, Ting Yang, Ling Yang, Fan Li
The aim of the present study was to investigate the effects of minocycline on cognitive functions in neonatal rat after hypoxia exposure and the underlying mechanism. A model of hypoxic brain damage (HBD) was developed by exposing postnatal 1 day (P1) rats to systemic hypoxia. The rats were intraperitoneally injected with normal saline (Hy group) or minocycline (Hy + M group) 2 h after hypoxia exposure. Some other P1 rats that were not subjected to systemic hypoxia were used as normal control (NG group). The Y-maze test was used to evaluate learning and memory ability on postnatal day 30...
April 25, 2016: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/27061744/minocycline-attenuates-post-operative-cognitive-impairment-in-aged-mice-by-inhibiting-microglia-activation
#19
Hui-Lin Wang, Hua Liu, Zhang-Gang Xue, Qing-Wu Liao, Hao Fang
Although it is known that isoflurane exposure or surgery leads to post-operative cognitive dysfunction in aged rodents, there are few clinical interventions and treatments available to prevent this disorder. Minocycline (MINO) produces neuroprotection from several neurodegenerative diseases and various experimental animal models. Therefore, we set out to investigate the effects of MINO pre-treatment on isoflurane or surgery induced cognitive impairment in aged mice by assessing the hippocampal-dependent spatial memory performance using the Morris water maze task...
September 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/26937001/neuroinflammatory-dynamics-underlie-memory-impairments-after-repeated-social-defeat
#20
Daniel B McKim, Anzela Niraula, Andrew J Tarr, Eric S Wohleb, John F Sheridan, Jonathan P Godbout
UNLABELLED: Repeated social defeat (RSD) is a murine stressor that recapitulates key physiological, immunological, and behavioral alterations observed in humans exposed to chronic psychosocial stress. Psychosocial stress promotes prolonged behavioral adaptations that are associated with neuroinflammatory signaling and impaired neuroplasticity. Here, we show that RSD promoted hippocampal neuroinflammatory activation that was characterized by proinflammatory gene expression and by microglia activation and monocyte trafficking that was particularly pronounced within the caudal extent of the hippocampus...
March 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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