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Pharmacological Reports: PR

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https://www.readbyqxmd.com/read/27912102/toyocamycin-induces-apoptosis-via-the-crosstalk-between-reactive-oxygen-species-and-p38-erk-mapks-signaling-pathway-in-human-prostate-cancer-pc-3-cells
#1
Sul-Gi Park, Sang-Hun Kim, Kwang-Youn Kim, Sun-Nyoung Yu, Hyeun-Deok Choi, Young-Wook Kim, Hyo-Won Nam, Young-Kyo Seo, Soon-Cheol Ahn
BACKGROUND: Toyocamycin, an antibiotic agent isolated from Streptomyces species, has been shown to have anticancer and chemopreventive effects on various cancer cells. Until now, Toyocamycin-induced apoptosis has not been reported to be involved in the regulation between mitogen-activated protein kinases (MAPKs) and reactive oxygen species (ROS) production. METHODS: Cell viability assay, western blot, cell-cycle arrest, annexin V/propidium iodide assay, reactive oxygen species (ROS) production, mitochondrial membrane potential and intracellular Ca(2+) flux were assayed...
October 24, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27898339/dietary-phytochemicals-for-possible-preventive-and-therapeutic-option-of-uterine-fibroids-signaling-pathways-as-target
#2
REVIEW
Md Soriful Islam, James H Segars, Mario Castellucci, Pasquapina Ciarmela
A growing interest has emerged on dietary phytochemicals to control diverse pathological conditions. Unfortunately, dietary phytochemical research in uterine fibroids is still under construction. Uterine fibroids/leiomyomas are benign tumors developing from the myometrium of the uterus in premenopausal women. They may occur in more than 70% of women, and approximately 25% of women show clinically significant symptoms. These include heavy and prolonged menstrual bleeding, pelvic pressure (urinary frequency, incontinence, and difficulty with urination), pelvic pain, pelvic mass, infertility, and reproductive dysfunction...
October 20, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27907838/fear-memory-in-a-neurodevelopmental-model-of-schizophrenia-based-on-the-postnatal-blockade-of-nmda-receptors
#3
Joachim Latusz, Aleksandra Radaszkiewicz, Ewelina Bator, Krzysztof Wędzony, Marzena Maćkowiak
BACKGROUND: Epidemiological data have indicated that memory impairment is observed during adolescence in groups at high risk for schizophrenia and might precede the appearance of schizophrenia symptoms in adulthood. METHODS: In the present study, we used a neurodevelopmental model of schizophrenia based on the postnatal blockade of N-methyl-d-aspartate (NMDA) receptors in rats to investigate fear memory in adolescence and adulthood. The rats were treated with increasing doses of CGP 37849 (CGP), a competitive antagonist of the NMDA receptor (1...
October 17, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27907839/influence-of-picolinic-acid-on-seizure-susceptibility-in-mice
#4
Anna Cioczek-Czuczwar, Piotr Czuczwar, Waldemar Andrzej Turski, Jolanta Parada-Turska
BACKGROUND: The mechanism of drug resistance in epilepsy remains unknown. Picolinic acid (PIC) is an endogenous metabolite of the kynurenine pathway and a chelating agent added to dietary supplements. Both inhibitory and excitatory properties of PIC were reported. The aim of this study was to determine the influence of exogenously applied PIC upon the electroconvulsive threshold and the activity of chemical convulsants in eight models of epilepsy in mice. METHODS: All experiments were performed on adult male Swiss albino mice...
October 12, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27764702/contribution-of-the-nitric-oxide-donor-molsidomine-and-the-antiparkinsonian-drug-l-dopa-to-the-modulation-of-the-blood-pressure-in-unilaterally-6-ohda-lesioned-rats
#5
Elżbieta Lorenc-Koci, Anna Czarnecka, Kinga Kamińska, Joanna Knutelska, Małgorzata Zygmunt, Magdalena Dudek
BACKGROUND: Interaction between dopaminergic and nitrergic neurotransmission in the brain plays a crucial role in the control of motor function and in the regulation of blood pressure (BP). In Parkinson's disease (PD), dopaminergic denervation of the striatum leads to disturbances in the nitrergic system in the basal ganglia. Recently, it has been demonstrated that addition of a low dose of the nitric oxide donor molsidomine to l-DOPA therapy improves dopaminergic neurotransmission in the denervated nigrostriatal system and weakens dyskinesias in rodent models of the disease...
September 28, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27898338/effect-of-pgd2-on-middle-meningeal-artery-and-mrna-expression-profile-of-l-pgd2-synthase-and-dp-receptors-in-trigeminovascular-system-and-other-pain-processing-structures-in-rat-brain
#6
Aysegül Sekeroglu, Julie Mie Jacobsen, Inger Jansen-Olesen, Saurabh Gupta, Majid Sheykhzade, Jes Olesen, Deepak K Bhatt
BACKGROUND: Prostaglandins (PGs), particularly prostaglandin D2 (PGD2), E2 (PGE2), and I2 (PGI2), are considered to play a role in migraine pain. In humans, infusion of PGD2 causes lesser headache as compared to infusion of PGE2 and PGI2. Follow-up studies in rats have shown that infusion of PGE2 and PGI2 dilate the middle meningeal artery (MMA), and mRNA for PGE2 and PGI2 receptors is present in rat trigeminovascular system (TVS) and in the brain structures associated with pain. In the present study, we have characterized the dilatory effect of PGD2 on rat MMA and studied the relative mRNA expression of PGD2 receptors and lipocalin-type of PGD2 synthase (L-PGDS)...
September 19, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27657482/protective-effect-of-isoquercitrin-against-acute-dextran-sulfate-sodium-induced-rat-colitis-depends-on-the-severity-of-tissue-damage
#7
Norbert Cibiček, Lenka Roubalová, Jiří Vrba, Martina Zatloukalová, Jiří Ehrmann, Jana Zapletalová, Rostislav Večeřa, Vladimír Křen, Jitka Ulrichová
BACKGROUND: Isoquercitrin (quercetin-3-O-β-d-glucopyranoside) is a flavonoid that exhibited antioxidant and anti-inflammatory activities in a number of in vitro and in vivo studies. Experimental evidence from rodent models of inflammatory bowel disease is, however, lacking. This study was designed to examine whether isoquercitrin effectively and dose-dependently attenuates acute dextran sulfate sodium (DSS)-induced rat colitis. METHODS: Wistar rats were divided into negative control group (exposed to vehicle only), positive control group (DSS-induced colitis plus vehicle), low isoquercitrin group (DSS pretreated with isoquercitrin 1mg/kg/day) and high isoquercitrin group (DSS with isoquercitrin 10mg/kg/day)...
September 19, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27771529/the-effect-of-oral-contraception-on-cardiometabolic-risk-factors-in-women-with-elevated-androgen-levels
#8
Robert Krysiak, Małgorzata Gilowska, Bogusław Okopień
BACKGROUND: In unselected reproductive-aged women, use of combined estrogen-progestin oral contraceptive pills has been linked with an increased risk of vascular disease. The aim of this study was to investigate the effect of oral contraception on cardiometabolic risk factors in a population of women with hyperandrogenism. METHODS: The study included 16 untreated women with elevated testosterone levels and 15 matched healthy women who were then treated with oral contraceptive pills containing ethinyl estradiol (30μg) and drospirenone (3mg)...
September 15, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27768961/physcion-8-o-%C3%AE-glucopyranoside-suppresses-the-metastasis-of-breast-cancer-in-vitro-and-in-vivo-by-modulating-dnmt1
#9
Xia Chen, Hua Guo, Fuxia Li, Di Fan
BACKGROUND: The present study is designed to explore the metastasis-inhibitory effect of physcion 8-O-β-glucopyranoside (PG) in human breast cancer, and the mechanisms underlying its role in tumor metastasis. METHODS: Both in vitro and in vivo studies were conducted. Cell migration and invasion were analyzed by transwell assay. The translocation of β-catenin from the nucleus to cytoplasm membrane was demonstrated by immunofluorescent staining. The expression of signaling molecules was determined by Western blot or qRT-PCR...
September 13, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27755993/the-decreased-achievement-of-therapeutic-goal-in-lipid-lowering-therapy-in-obese-and-diabetic-patients-in-poland
#10
Michał Holecki, Gabriela Handzlik-Orlik, Agnieszka Almgren-Rachtan, Jan Duława, Jerzy Chudek
BACKGROUND: Statins are used to reduce a cardiovascular risk. However, the effectiveness of the therapy in many cases remains unsatisfactory. Therefore, the aim of this study was to evaluate the influence of obesity and diabetes on the achievement of therapeutic goal in lipid-lowering therapy in patients with a various cardiovascular risk in the daily clinical practice. METHODS: This study was conducted on the basis of questionnaires obtained from 7018 patients (41...
September 13, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27755991/risperidone-and-escitalopram-co-administration-a-potential-treatment-of-schizophrenia-symptoms-with-less-side-effects
#11
Katarzyna Kamińska, Karolina Noworyta-Sokołowska, Alexandra Jurczak, Anna Górska, Zofia Rogóż, Krystyna Gołembiowska
BACKGROUND: Schizophrenia is a psychiatric disorder characterized by positive and negative symptoms often accompanied by depression and cognitive deficits. Positive symptoms, like delusions and hallucinations are caused by an excess of dopamine (DA) signaling and are treated with the second generation antipsychotic drugs. Negative symptoms of schizophrenia are represented by social withdrawal, apathy and blunted emotional response. It was demonstrated that co-administration of risperidone and selective serotonin reuptake inhibitors alleviated depressive symptoms and cognitive dysfunction in animal models of schizophrenia...
September 11, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27755990/effects-of-alpha-lipoic-acid-on-expression-of-iron-transport-and-storage-proteins-in-bv-2-microglia-cells
#12
Ping Chen, Fei-Mi Li, Yu-Fu Zhou, Christopher Qian, Juan Li, Li-Rong Jiang, Zhong-Ming Qian
BACKGROUND: The antioxidant properties of alpha-lipoic acid (ALA) are associated with its ability to reduce iron in cells and tissues, which is partly due to its inhibiting effect on iron uptake from transferrin and its promoting effect on iron deposition into ferritin. However, the relevant mechanisms are unknown. METHODS: We therefore investigated the effects of ALA on the expression of transferrin receptor 1 (TfR1), divalent metal transporter 1 (DMT1), ferroportin 1 (Fpn1) and ferritin in BV-2 microglia cells...
September 11, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27710864/the-effects-of-hydrogen-sulfide-on-electrical-field-stimulation-induced-neurogenic-contractile-responses-in-isolated-rabbit-lower-esophageal-sphincter-contribution-of-nitrergic-and-non-adrenergic-non-cholinergic-transmission
#13
Halil Kara, Fatma Isli, Gokce Sevim Ozturk Fincan, Seniz Yildirim, Sevim Ercan, Yusuf Sarioglu
BACKGROUND: Hydrogen sulfide (H2S) is a gaseous signaling molecule that, similar to nitric oxide (NO), plays an important role as an inhibitor neurotransmitter in the digestive tract. This study aimed to investigate the effect of H2S and to identify neurogenic contraction responses dependent on the electrical field stimulation (EFS) in the isolated lower esophageal sphincters of rabbits. METHODS: An isolated lower esophageal sphincter was placed in an organ bath system and mechanical responses were recorded using a force transducer...
September 6, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27611980/cerebellar-level-of-neurotransmitters-in-rats-exposed-to-paracetamol-during-development
#14
Kamilla Blecharz-Klin, Ilona Joniec-Maciejak, Katarzyna Jawna-Zboińska, Justyna Pyrzanowska, Agnieszka Piechal, Adriana Wawer, Ewa Widy-Tyszkiewicz
BACKGROUND: The present study was designed to clarify the effect of prenatal and postnatal paracetamol administration on the neurotransmitter level and balance of amino acids in the cerebellum. METHODS: Biochemical analysis to determine the concentration of neurotransmitters in this brain structure was performed on two-month-old Wistar male rats previously exposed to paracetamol in doses of 5 (P5, n=10) or 15mg/kg (P15, n=10) throughout the entire prenatal period, lactation and until the completion of the second month of life, when the experiment was terminated...
September 6, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27710862/escitalopram-affects-spexin-expression-in-the-rat-hypothalamus-hippocampus-and-striatum
#15
Artur Pałasz, Aleksandra Suszka-Świtek, Łukasz Filipczyk, Katarzyna Bogus, Ewa Rojczyk, John Worthington, Marek Krzystanek, Ryszard Wiaderkiewicz
BACKGROUND: Spexin (SPX) is a recently discovered neuropeptide that exhibits a large spectrum of central and peripheral regulatory activity, especially when considered as a potent anorexigenic factor. It has already been proven that antidepressants, including selective serotonin reuptake inhibitors (SSRI), can modulate peptidergic signaling in various brain structures. Despite these findings, there is so far no information regarding the influence of treatment with the SSRI antidepressant escitalopram on brain SPX expression...
December 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27693857/neuroprotective-mechanism-of-coenzyme-q10-coq10-against-ptz-induced-kindling-and-associated-cognitive-dysfunction-possible-role-of-microglia-inhibition
#16
Manveen Bhardwaj, Anil Kumar
BACKGROUND: Neuroinflammation, oxidative stress and mitochondrial dysfunction play a significant role to explain the pathophysiology of epilepsy. Neuroinflammation through microglia activation has been documented in epileptogenesis. Compounds which inhibit activation of glial cells have been suggested as one of the treatment approaches for the effective treatment of epilepsy. The present study has been designed to investigate the role of coenzyme Q10 and its interaction with minocycline (microglia inhibitor) against pentylenetetrazol (PTZ) induced kindling epilepsy...
December 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27634589/epilepsy-coexisting-with-depression
#17
REVIEW
Barbara Błaszczyk, Stanisław J Czuczwar
Depression episodes in epilepsy is the most common commorbidity, affecting between 11% and 62% of patients with epilepsy. Although researchers have documented a strong association between epilepsy and psychiatric comorbidities, the nature of this relationship is poorly understood. The manifestation of depression in epilepsy is a complex issue having many interacting neurobiological and psychosocial determinants, including clinical features of epilepsy (seizure frequency, type, foci, or lateralization of foci) and neurochemical or iatrogenic mechanisms...
October 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27552063/combining-hypobaric-hypoxia-or-hyperbaric-oxygen-postconditioning-with-memantine-reduces-neuroprotection-in-7-day-old-rat-hypoxia-ischemia
#18
Marcin Gamdzyk, Apolonia Ziembowicz, Ewelina Bratek, Elzbieta Salinska
BACKGROUND: Perinatal hypoxia-ischemia causes brain injury in neonates, but a fully successful treatment to prevent changes in the brain has yet to be developed. The aim of this study was to evaluate the effect of combining memantine treatment with HBO (2.5 ATA) or HH (0.47 ATA) on neonatal hypoxia-ischemia brain injury. METHODS: 7-day old rats were subjected to hypoxia-ischemia (H-I) and treated with combination of memantine and HBO or HH. The brain damage was evaluated by examination of infarct area and the number of apoptotic cells in CA1 region of hippocampus...
October 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27552062/intravenous-lidocaine-infusions-in-a-multidirectional-model-of-treatment-of-neuropathic-pain-patients
#19
Anna Przeklasa-Muszyńska, Magdalena Kocot-Kępska, Jan Dobrogowski, Maciej Wiatr, Joanna Mika
BACKGROUND: Neuropathic pain, is caused by damage or disease affecting the somatosensory nervous system, leads to deterioration of the quality of life of patients. Most commonly, this deterioration is due to the inefficacy of treatment or to the adverse effects of systemic treatment. Pharmacotherapy of neuropathic pain involves the use of antiepileptic agents, antidepressants, and opioids that may lead to numerous adverse effects, particularly in elderly patients. Intravenous infusions of lidocaine may improve the efficacy of the analgesic treatment of neuropathic pain patients while not causing any significant adverse effects...
October 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27552061/resveratrol-intake-enhances-indoleamine-2-3-dioxygenase-activity-in-humans
#20
Guido A Gualdoni, Dietmar Fuchs, Gerhard J Zlabinger, Johanna M Gostner
BACKGROUND: Resveratrol is a polyphenol compound found in various nutrients that was shown to have immunomodulatory, anti-cancerogenic, and cardioprotective effects. The regulation of indoleamine-2,3-dioxygenase (IDO), the rate-limiting enzyme in inflammatory tryptophan metabolism, has been proposed to be involved in resveratrol's biological effects. These observations, however, rely on in vitro findings and animal studies. Therefore, we assessed the impact of resveratrol on tryptophan metabolism after oral intake in humans...
October 2016: Pharmacological Reports: PR
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