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https://www.readbyqxmd.com/read/29033604/chronic-pain-and-adult-hippocampal-neurogenesis-translational-implications-from-preclinical-studies
#1
Mariagrazia Grilli
Adult hippocampal neurogenesis (ahNG) occurs in the human brain. Adult generated neurons have been proposed to functionally contribute to relevant hippocampal functions such as learning and memory, mood regulation, and stress response. Learning, environmental enrichment, and physical exercise exert positive effects on ahNG. In parallel, these proneurogenic stimuli have been shown to ameliorate cognitive performance and/or depressive-like behavior in animal models. Conversely, aging, social isolation, and chronic stress exert negative effects on ahNG...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/29024663/role-of-the-astroglial-glutamate-exchanger-xct-in-ventral-hippocampus-in-resilience-to-stress
#2
Carla Nasca, Benedetta Bigio, Danielle Zelli, Paolo de Angelis, Timothy Lau, Masahiro Okamoto, Hideyo Soya, Jason Ni, Lars Brichta, Paul Greengard, Rachael L Neve, Francis S Lee, Bruce S McEwen
We demonstrate that stress differentially regulates glutamate homeostasis in the dorsal and ventral hippocampus and identify a role for the astroglial xCT in ventral dentate gyrus (vDG) in stress and antidepressant responses. We provide an RNA-seq roadmap for the stress-sensitive vDG. The transcription factor REST binds to xCT promoter in co-occupancy with the epigenetic marker H3K27ac to regulate expression of xCT, which is also reduced in a genetic mouse model of inherent susceptibility to depressive-like behavior...
October 11, 2017: Neuron
https://www.readbyqxmd.com/read/28986235/alpha-synuclein-epigenetics-mitochondria-metabolism-calcium-traffic-circadian-dysfunction-in-parkinson-s-disease-an-integrated-strategy-for-management
#3
REVIEW
Oliver T Phillipson
The motor deficits which characterise the sporadic form of Parkinson's disease arise from age-related loss of a subset of dopamine neurons in the substantia nigra. Although motor symptoms respond to dopamine replacement therapies, the underlying disease process remains. This review details some features of the progressive molecular pathology and proposes deployment of a combination of nutrients: R-lipoic acid, acetyl-l-carnitine, ubiquinol, melatonin (or receptor agonists) and vitamin D3, with the collective potential to slow progression of these features...
October 3, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28980618/-the-use-of-acetyl-l-carnitine-in-gerontological-practice
#4
E V Ponomareva
An analysis of literature data on the acetyl-L-carnitine treatment in gerontological practice is performed. This review describes the range of biochemical activity and mechanism of action of the drug. The profile and specificity of acetyl-L-carnitine action and the possibility of combining nicergoline with other drugs is discussed. The results of preclinical and clinical studies on the application of acetyl-L-carnitine in the world medical practice are analyzed. The analysis of the studies demonstrates the high efficacy and a broad spectrum of acetyl-L-carnitine treatment...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28962893/the-increase-in-fiber-size-in-male-rat-gastrocnemius-after-chronic-central-leptin-infusion-is-related-to-activation-of-insulin-signaling
#5
Emma Burgos-Ramos, Sandra Canelles, Amaia Rodríguez, Laura M Frago, Javier Gómez-Ambrosi, Julie A Chowen, Gema Frühbeck, Jesús Argente, Vicente Barrios
Insulin potentiates leptin effects on muscle accrual and glucose homeostasis. However, the relationship between leptin's central effects on peripheral insulin sensitivity and the associated structural changes remain unclear. We hypothesized that central leptin infusion modifies muscle size through activation of insulin signaling. Muscle insulin signaling, enzymes of fatty acid metabolism, mitochondrial respiratory chain complexes, proliferating cell nuclear antigen (PCNA) and fiber area were analyzed in the gastrocnemius of chronic central infused (L), pair-fed (PF) and control rats...
September 26, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28916721/loss-of-cardiac-carnitine-palmitoyltransferase-2-results-in-rapamycin-resistant-acetylation-independent-hypertrophy
#6
Andrea S Pereyra, Like Y Hasek, Kate L Harris, Alycia G Berman, Frederick W Damen, Craig J Goergen, Jessica M Ellis
Cardiac hypertrophy is closely linked to impaired fatty acid oxidation, but the molecular basis of this link is unclear. Here, we investigated the loss of an obligate enzyme in mitochondrial long-chain fatty acid oxidation, carnitine palmitoyltransferase 2 (CPT2), on muscle and heart structure, function, and molecular signatures in a muscle- and heart-specific CPT2-deficient mouse (Cpt2M-/-) model. CPT2 loss in heart and muscle reduced complete oxidation of long-chain fatty acids by 87% and 69%, respectively, without altering body weight, energy expenditure, respiratory quotient, or adiposity...
September 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28895586/maresin-1-mitigates-liver-steatosis-in-ob-ob-and-diet-induced-obese-mice
#7
L M Laiglesia, S Lorente-Cebrián, L Martínez-Fernández, N Sáinz, P L Prieto-Hontoria, M A Burrell, C M Rodríguez-Ortigosa, J A Martínez, M J Moreno-Aliaga
BACKGROUND/OBJECTIVES: The aim of this study was to characterize the effects of Maresin 1 (MaR1) in obesity-related liver steatosis and the mechanisms involved. METHODS: MaR1 effects on fatty liver disease were tested in ob/ob (2-10 μg/kg i.p., 20 days) and in diet-induced obese (DIO) mice (2 μg/kg, i.p., or 50 μg/kg, oral gavage for 10 days), as well as in cultured hepatocytes. RESULTS: In ob/ob mice, MaR1 reduced liver triglycerides (TG) content, fatty acid synthase (FAS) and stearoyl-CoA desaturase-1 protein expression, while increased acetyl-CoA carboxylase (ACC) phosphorylation and LC3II protein expression, in parallel with a drop in p62 levels...
September 12, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28870581/pharmacological-treatments-for-fatigue-in-patients-with-multiple-sclerosis-a-systematic-review-and-meta-analysis
#8
Ting-Ting Yang, Li Wang, Xiao-Yang Deng, Gang Yu
BACKGROUND: Multiple sclerosis (MS) is a chronic immune-mediated inflammatory disease. Fatigue is the most common symptom of MS patients, affecting >80% subjects. Medical treatment is an important method for managing fatigue. Currently, although many drugs have been tested in treatment of MS fatigue, the efficacy of these drugs remain largely unclear. METHODS: We researched available literatures in PubMed, Embase, Medline, Google Scholar, Cochrane Library (August 31, 2016)...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28845935/-using-l-and-acetyl-l-carnintines-in-combination-with-clomiphene-citrate-and-antioxidant-complex-for-treating-idiopathic-male-infertility-a-prospective-randomized-trial
#9
V A Bozhedomov, N A Lipatova, G E Bozhedomova, I M Rokhlikov, E V Shcherbakova, R A Komarina
The most common cause of male infertility is idiopathic oligo-, and or astheno-, and /or teratozoospermia. In such cases, anti-estrogens, antioxidants (vitamins and trace elements) or carnitines are used, but the evidence on their effectiveness is inconsistent; there are currently no published studies exploring their concurrent use. AIM: To investigate the efficacy and safety of the L- and acetyl-L-carnitine complex, vitamins A, E, C, selenium, zinc and other antioxidants ("SpermActin" + "More than vitamins") in combination with clomiphene citrate (CC) in managing male idiopathic infertility in the form of oligo, and/or astheno-, and/or teratozoospermia...
July 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28845931/-adjuvant-antioxidant-therapy-in-varicocele-infertility
#10
S I Gamidov, R I Ovchinnikov, A Yu Popova, A Yu Avakyan, G T Sukhikh
INTRODUCTION: Infertility affects an estimated 15% of couples globally. Male factor infertility accounts for about a half of infertility cases. About 40% of infertile men have varicocele. The aim of this study was to investigate the efficacy and safety of a complex of acetyl-L-carnitine, L-carnitine fumarate and alpha-lipoic acid (SpermActin-forte) (SA) for adjuvant antioxidant therapy after microsurgical varicocelectomy (MVE) in men with varicocele and assess its impact on the level of DNA fragmentation in sperm cells...
June 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28838027/n-butyl-4-hydroxy-1-8-naphthalimide-a-new-matrix-for-small-molecule-analysis-by-matrix-assisted-laser-desorption-ionization-mass-spectrometry
#11
Xina Cheng, Xueting Ye, Dan Liu, Nan Zhao, Huiyuan Gao, Ping Wang, Guangbo Ge, Xiaozhe Zhang
RATIONALE: The matrix plays an essential role in defining detection limits and ionization yields of analytes in matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) analysis. Small molecule MALDI-MS analyses commonly suffer from the high background interference generated from matrices. Moreover, the inhomogeneous crystallization of some matrices, such as 2,5-dihydroxybenzoic acid (DHB), is to the detriment of the quality or repeatability of detection. We have found that N-butyl-4-hydroxy-1,8-naphthalimide (BHN) can provide improved performance as a matrix for small molecule analysis...
November 15, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28822835/neuroprotective-effects-of-acetyl-l-carnitine-on-lipopolysaccharide-induced-neuroinflammation-in-mice-involvement-of-brain-derived-neurotrophic-factor
#12
Filiz Kazak, Gul Fatma Yarim
Neuroinflammation is the inflammation of nervous tissue that can lead to neurodegeneration. Brain-derived neurotrophic factor (BDNF) is a neurotrophin which affects growth, function and survival of neurons, enhances the stabilization of synapses, regulates synaptic function and branching of dendrites and axons. Brain-derived neurotrophic factor is believed to be involved in the pathophysiology of central nervous system (CNS) diseases associated with neuroinflamation. The aim of this study was to investigate new protective and therapeutic effect of acetyl-l-carnitine (ALCAR) in neuroinflammation...
September 29, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28810615/detecting-serum-and-urine-metabolic-profile-changes-of-ccl4-liver-fibrosis-in-rats-at-12-weeks-based-on-gas-chromatography-mass-spectrometry
#13
Jiarong Gao, Xiu-Juan Qin, Hui Jiang, Jin-Feng Chen, Ting Wang, Ting Zhang, Shuang-Zhi Xu, Jun-Mei Song
Liver fibrosis is caused by liver injury induced by a number of chronic liver diseases, including schistosome infection, hepatitis infection, metabolic disease, alcoholism and cholestasis. The tissue damage occurring after injury or inflammation of the liver is a reversible lesion; however, liver fibrosis has become a worldwide problem and poses a threat to human health. The development of an effective drug for the prevention and treatment of liver fibrosis is ongoing and uses information from different occurrences of liver fibrosis...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28807823/dietary-supplementation-with-acetyl-l-carnitine-counteracts-age-related-alterations-of-mitochondrial-biogenesis-dynamics-and-antioxidant-defenses-in-brain-of-old-rats
#14
Luigi Nicassio, Flavio Fracasso, Giuseppe Sirago, Clara Musicco, Anna Picca, Emanuele Marzetti, Riccardo Calvani, Palmiro Cantatore, Maria Nicola Gadaleta, Vito Pesce
We previously reported the ability of dietary supplementation with acetyl-l-carnitine (ALCAR) to prevent age-related decreases of mitochondrial biogenesis in skeletal muscle and liver of old rats. Here, we investigate the effects of ALCAR supplementation in cerebral hemispheres and cerebellum of old rats by analyzing several parameters linked to mitochondrial biogenesis, mitochondrial dynamics and antioxidant defenses. We measured the level of the coactivators PGC-1α and PGC-1β and of the factors regulating mitochondrial biogenesis, finding an age-related decrease of PGC-1β, whereas PGC-1α level was unvaried...
August 12, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28768996/functional-expression-of-organic-ion-transporters-in-astrocytes-and-their-potential-as-a-drug-target-in-the-treatment-of-central-nervous-system-diseases
#15
Tomomi Furihata, Naohiko Anzai
It has become widely acknowledged that astrocytes play essential roles in maintaining physiological central nervous system (CNS) activities. Astrocytes fulfill their roles partly through the manipulation of their plasma membrane transporter functions, and therefore these transporters have been regarded as promising drug targets for various CNS diseases. A representative example is excitatory amino acid transporter 2 (EAAT2), which works as a critical regulator of excitatory signal transduction through its glutamate uptake activity at the tripartite synapse...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28752910/antioxidants-for-female-subfertility
#16
REVIEW
Marian G Showell, Rebecca Mackenzie-Proctor, Vanessa Jordan, Roger J Hart
BACKGROUND: A couple may be considered to have fertility problems if they have been trying to conceive for over a year with no success. This may affect up to a quarter of all couples planning a child. It is estimated that for 40% to 50% of couples, subfertility may result from factors affecting women. Antioxidants are thought to reduce the oxidative stress brought on by these conditions. Currently, limited evidence suggests that antioxidants improve fertility, and trials have explored this area with varied results...
July 28, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28712316/disturbed-bovine-mitochondrial-lipid-metabolism-a-review
#17
J H van der Kolk, J J Gross, V Gerber, R M Bruckmaier
In mammals, excess energy is stored primarily as triglycerides, which are mobilized when energy demands arise and cannot be covered by feed intake. This review mainly focuses on the role of long chain fatty acids in disturbed energy metabolism of the bovine species. Long chain fatty acids regulate energy metabolism as ligands of peroxisome proliferator-activated receptors. β-Oxidation is the process by which fatty acid molecules are broken down in the mitochondria or peroxisomes to generate acetyl-CoA. Carnitine acts as a carrier of fatty acyl groups as long-chain acyl-CoA derivatives do not penetrate the mitochondrial inner membrane...
July 17, 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28668962/acute-exercise-stimulates-carnitine-biosynthesis-and-octn2-expression-in-mouse-kidney
#18
Tom L Broderick, Frank A Cusimano, Chelsea Carlson, Leslie K Tamura
BACKGROUND/AIMS: Carnitine is essential for the transport of long-chain FAs (FA) into the mitochondria for energy production. During acute exercise, the increased demand for FAs results in a state of free carnitine deficiency in plasma. The role of kidney in carnitine homeostasis after exercise is not known. METHODS: Swiss Webster mice were sacrificed immediately after a 1-hour moderate intensity treadmill run, and at 4-hours and 8-hours into recovery. Non-exercising mice served as controls...
2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28655217/preventing-subclinical-necrotic-enteritis-through-lactobacillus-johnsonii-bs15-by-ameliorating-lipid-metabolism-and-intestinal-microflora-in-broiler-chickens
#19
Xiaodan Qing, Dong Zeng, Hesong Wang, Xueqin Ni, Lei Liu, Jing Lai, Abdul Khalique, Kangcheng Pan, Bo Jing
Increasing studies have focused on the beneficial effects of Lactobacillus johnsonii in certain diseases. Here, we studied the prevention ability of a probiotic strain, L. johnsonii BS15 on subclinical necrotic enteritis (SNE), and its underlying mechanism. 180 male Cobb 500 chicks were randomly allotted into three groups and administrated with BS15 (1 × 10(6) cfu/g) or Man Rogosa Sharpe liquid medium throughout a 28-day experimental period. With the exception of the normal group, SNE infection was treated for the remaining experimental period after the chicks were fed with normal diet 14 days...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28653367/significance-of-l-carnitine-for-human-health
#20
REVIEW
María M Adeva-Andany, Isabel Calvo-Castro, Carlos Fernández-Fernández, Cristóbal Donapetry-García, Ana María Pedre-Piñeiro
Carnitine acyltransferases catalyze the reversible transfer of acyl groups from acyl-coenzyme A esters to l-carnitine, forming acyl-carnitine esters that may be transported across cell membranes. l-Carnitine is a wáter-soluble compound that humans may obtain both by food ingestion and endogenous synthesis from trimethyl-lysine. Most l-carnitine is intracellular, being present predominantly in liver, skeletal muscle, heart and kidney. The organic cation transporter-2 facilitates l-carnitine uptake inside cells...
August 2017: IUBMB Life
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