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Naunyn-Schmiedeberg's Archives of Pharmacology

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https://www.readbyqxmd.com/read/28612111/probable-mechanisms-involved-in-the-antipsychotic-like-activity-of-methyl-jasmonate-in-mice
#1
Olajide S Annafi, Oritoke M Aluko, Anthony T Eduviere, Osarume Omorogbe, Solomon Umukoro
Psychosis is a chronic neuropsychiatric disorder that affects millions of individuals worldwide and impairs the quality of life and productivity of the patients. The clinical efficacy of antipsychotic drugs has been compromised by adverse effects, relapse, and therapeutic failures, thus necessitating search for alternative agents. Methyl jasmonate (MJ) is a bioactive compound reported to have beneficial effects in various neurological disorders. This study was undertaken to investigate the antipsychotic-like effects of MJ in mice...
June 13, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28593342/the-role-of-dual-leucine-zipper-kinase-dlk-in-%C3%AE-cell-apoptosis-a-potential-target-for-the-prevention-and-treatment-of-type-2-diabetes-commentary-to-b%C3%A3-rchers-et-al-tnf-%C3%AE-induced-dlk-activation-contributes-to-apoptosis-in-the-%C3%AE-cell-line-hit
#2
EDITORIAL
https://www.readbyqxmd.com/read/28589248/quercetin-and-tin-protoporphyrin-attenuate-hepatic-ischemia-reperfusion-injury-role-of-ho-1
#3
Yara Atef, Hassan M El-Fayoumi, Yousra Abdel-Mottaleb, Mona F Mahmoud
Ischemia reperfusion (IR) injury occurs in many clinical situations such as organ transplantation and hepatectomies resulting in oxidative stress and immune activation. Heme oxygenase-1(HO-1) is the rate-limiting step in the heme-degradation pathway and has a critical cytoprotective role. Induction of HO-1 improves liver I/R injury. Quercetin, a plant pigment (flavonoid), is an antioxidant and HO-1 inducer. Tin protoporphyrin (SnPP) is a HO-1 inhibitor. This study was designed to investigate the protective effect of quercetin in hepatic I/R injury and the role of HO-1...
June 6, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28585064/revised-editorial-guidelines-for-manuscripts-on-the-pharmacology-of-plant-extracts
#4
EDITORIAL
Irmgard Merfort, Martin C Michel, Roland Seifert
No abstract text is available yet for this article.
June 6, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28577050/anticonvulsive-activity-of-1s-verbenone-involving-rna-expression-of-bdnf-cox-2-and-c-fos
#5
Cynthia Germoglio Farias de Melo, Paula Regina Rodrigues Salgado, Diogo Vilar da Fonsêca, Renan Marinho Braga, Marcelo Ricardo Dutra Caldas Filho, Ingrid Eulália Vieira de Farias, Hilzeth de Luna Freire Pessôa, Eleonidas Moura Lima, Ian Porto Gurgel do Amaral, Damião Pergentino de Sousa, Reinaldo Nóbrega de Almeida
(1S)-(-)-verbenone (VRB) is a monoterpene present in the essential oils of many plants which has shown therapeutic effect; however, its anticonvulsant activity has not yet been evaluated. The present work sought to investigate the anticonvulsant activity of VRB using pilocarpine and pentylenetetrazole-induced seizure testing; seeking also probable mechanisms of action. VRB caused no significant changes in motor coordination. Also, no significant data was observed in the pilocarpine-induced seizure tests. In the PTZ-induced seizures test, VRB showed anticonvulsant activity at doses of 200 mg/kg i...
June 2, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28577049/eburicoic-acid-from-laetiporus-sulphureus-bull-fr-murrill-attenuates-inflammatory-responses-through-inhibiting-lps-induced-activation-of-pi3k-akt-mtor-nf-%C3%AE%C2%BAb-pathways-in-raw264-7-cells
#6
Junzhi Wang, Pan Zhang, Haibo He, Xinxin Se, Wenjun Sun, Beiyan Chen, Lin Zhang, Ximing Yan, Kun Zou
Excessive activation of macrophages has been implicated in various types of inflammatory injury. Suppression of macrophage activation would have therapeutic benefits, leading to the alleviation of the progression of inflammatory diseases. Eburicoic acid (EA) is one of main bioactive components isolated from Laetiporus sulphureus (Bull.:Fr.) Murrill. In our previous study, we found that EA possessed anti-inflammatory activities. However, the cellular and molecular mechanisms underlying its anti-inflammatory activities remain to be poorly understood...
June 2, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28569366/the-water-avoidance-stress-induces-bladder-pain-due-to-a-prolonged-alpha1a-adrenoceptor-stimulation
#7
Rita Matos, Paula Serrão, Larissa Rodriguez, Lori Ann Birder, Francisco Cruz, Ana Charrua
Bladder Pain Syndrome/Interstitial Cystitis (BPS/IC) remains an elusive disease with the cause for the pain unclear. BPS/IC patients present increased sympathetic activity and high levels of urinary noradrenaline. At the experimental level, it has been shown that chronic adrenergic stimulation produces pain and bladder changes through an alpha 1A adrenoceptor mediated mechanism. Water avoidance stress (WAS) in rodents reproduces signs of nociception and bladder changes seen in BPS/IC patients. In this study, we explore the possible role of alpha 1A adrenoceptor in bladder pain and morphological changes...
May 31, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28555252/the-perinatal-effects-of-maternal-caffeine-intake-on-fetal-and-neonatal-brain-levels-of-testosterone-estradiol-and-dihydrotestosterone-in-rats
#8
S Karaismailoglu, M Tuncer, S Bayrak, G Erdogan, E L Ergun, A Erdem
Testosterone, estradiol, and dihydrotestosterone are the main sex steroid hormones responsible for the organization and sexual differentiation of brain structures during early development. The hypothalamo-pituitary-adrenocortical axis, adrenal cells, and gonads play a key role in the production of sex steroids and express adenosine receptors. Caffeine is a non-selective adenosine antagonist; therefore, it can modulate metabolic pathways in these tissues. Besides, the proportion of pregnant women that consume caffeine is ∼60%...
May 29, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28550372/tnf%C3%AE-induced-dlk-activation-contributes-to-apoptosis-in-the-beta-cell-line-hit
#9
Svenja Börchers, Rohollah Babaei, Catarina Klimpel, Jorge Duque Escobar, Sabine Schröder, Roland Blume, Muhammad Nasir Hayat Malik, Elke Oetjen
Reduction in beta-cell mass and function contributes to the pathogenesis of diabetes mellitus type 2. The proinflammatory cytokines tumor necrosis factor (TNF)α and interleukin (IL)-1β have been implicated in the pathogenesis of this disease. Overexpression of the dual leucine zipper kinase (DLK) inhibits beta-cell function and induces apoptosis in the beta-cell line HIT. In the present study, it was investigated whether TNFα or IL-1β stimulates DLK enzymatic activity. Immunoblot analysis, transient transfection with luciferase reporter gene assays, and immunofluorescence were used...
May 27, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28509114/implicating-the-potential-role-of-orexin-in-hypertension
#10
REVIEW
Monika Rani, Raghuvansh Kumar, Pawan Krishan
Orexins (orexin A and orexin B), neuropeptides of hypothalamic origin also known as hypocretins, have been well documented for regulating the different physiological functions including feeding, sleep wakefulness, stress, and reward. However, from the past few years, orexins have evolved as an emerging biomarker for various endocrine disorders including diabetes mellitus and obesity which ultimately leads to various cardiovascular risk factors. Orexins exist in two isoforms orexin A and orexin B and exert their effect by acting on the G protein-coupled receptors orexin 1 receptor (OX1R) and orexin 2 receptor (OX2R)...
May 16, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28493050/fasudil-ameliorates-endothelial-dysfunction-in-streptozotocin-induced-diabetic-rats-a-possible-role-of-rho-kinase
#11
Amal Hofni, Basim A Shehata Messiha, Safwat A Mangoura
Endothelial dysfunction is a major contributor to the pathogenesis of vascular disease in diabetes mellitus and RhoA/Rho-kinase (ROCK) system appears to play a crucial role in this setting. The present study was conducted to investigate the effect of the selective ROCK inhibitor, fasudil, on diabetes-related endothelial dysfunction and elucidated its underlying mechanism(s). Diabetes was induced by a single intraperitoneal injection of streptozotocin (STZ, 50 mg/kg), and fasudil (5 mg/kg per day) was orally administered for 8 weeks...
May 11, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28477086/effects-of-salvianolic-acid-b-on-l-type-calcium-channels-and-myocardial-contractility-in-isolated-rat-ventricular-myocytes-and-herg-k-channels-expressed-in-hek293-cells
#12
Qiongtao Song, Xue Han, Yuchong Xue, Tao Song, Xi Chu, Xuan Zhang, Yuanyuan Zhang, Ying Zhang, Jianping Zhang, Li Chu
Salvianolic acid B (Sal B), one of the chief water-soluble constituents in Radix Salviae Milthiorrhizae, has often been reported to possess considerable cardiovascular regulatory effects. However, the underlying biochemical and cellular mechanisms of its cardioprotection remain unclear. This study was designed to evaluate the role of Sal B regulation in L-type Ca(2+) channel currents (ICa,L) and cell contractility in rat cardiomyocytes and hERG K(+) channels expressed in HEK293 cells with the patch-clamp and Ca(2+) imaging techniques to clarify its underlying cardioprotective mechanisms...
May 5, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28474169/denominator-changes-may-obscure-results-from-single-well-assays-%C3%AE-3-adrenoceptor-ligand-induced-changes-of-cell-number-as-example
#13
LETTER
Katerina Okeke, Martina B Michel-Reher, Martin C Michel
No abstract text is available yet for this article.
May 4, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28451724/chronic-loss-of-inhibitor-1-diminishes-cardiac-ryr2-phosphorylation-despite-exaggerated-camkii-activity
#14
Stefan Neef, Jordi Heijman, Kristian Otte, Matthias Dewenter, Ali R Saadatmand, Stefanie Meyer-Roxlau, Christopher L Antos, Johannes Backs, Dobromir Dobrev, Michael Wagner, Lars S Maier, Ali El-Armouche
Inhibitor-1 (I-1) modulates protein phosphatase 1 (PP1) activity and thereby counteracts the phosphorylation by kinases. I-1 is downregulated and deactivated in failing hearts, but whether its role is beneficial or detrimental remains controversial, and opposing therapeutic strategies have been proposed. Overactivity of Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) with hyperphosphorylation of ryanodine receptors (RyR2) at the CaMKII-site is recognized to be central for heart failure and arrhythmias...
April 27, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28439630/myriocin-treatment-of-cf-lung-infection-and-inflammation-complex-analyses-for-enigmatic-lipids
#15
Anna Caretti, Michele Vasso, Fabiola Tecla Bonezzi, Andrea Gallina, Marco Trinchera, Alice Rossi, Raffaella Adami, Josefina Casas, Monica Falleni, Delfina Tosi, Alessandra Bragonzi, Riccardo Ghidoni, Cecilia Gelfi, Paola Signorelli
Our aim was to use quantitative and qualitative analyses to gain further insight into the role of ceramide in cystic fibrosis (CF). Sphingolipid ceramide is a known inflammatory mediator, and its accumulation in inflamed lung has been reported in different types of emphysema, chronic obstructive pulmonary disease and CF. CF is caused by a mutation of the chloride channel and associated with hyperinflammation of the respiratory airways and high susceptibility to ongoing infections. We have previously demonstrated that de novo ceramide synthesis is enhanced in lung inflammation and sustains Pseudomonas aeruginosa pulmonary infection in a CF murine model...
April 24, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28429110/inhibition-of-the-crf1-receptor-influences-the-activity-of-antidepressant-drugs-in-the-forced-swim-test-in-rats
#16
Andrzej Wróbel, Anna Serefko, Aleksandra Szopa, Karol Rojek, Ewa Poleszak, Krystyna Skalicka-Woźniak, Jarosław Dudka
Hyperactivity of the hypothalamic-pituitary-adrenal axis (HPA) and impairment of the central corticotropin-releasing factor (CRF) system are factors in the pathogenesis of depression. Though several antagonists of the CRF1 receptor were effective in the recognized behavioral tests for antidepressant activity, there is still little information on the potential interactions between CRF1 receptor inhibitors and conventional antidepressant therapy. The aim of our study was to assess the influence of SN003, a CRF1 receptor blocker, on the activity of imipramine and fluoxetine in the forced swim test (FST) in rats which presented some signs of depression...
April 20, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28409209/2-acetyl-5-tetrahydroxybutyl-imidazole-thi-protects-661w-cells-against-oxidative-stress
#17
Carlotta Fabiani, Aida Zulueta, Fabiola Bonezzi, Josefina Casas, Riccardo Ghidoni, Paola Signorelli, Anna Caretti
Retinal degeneration and in particular retinitis pigmentosa (RP) is associated to ceramide (Cer) accumulation and cell death induction. Cer and sphingosine-1-phosphate (S1P) belong to the sphingolipids class and exert a pro-apoptotic and pro-survival activity, respectively. Our aim is to target sphingolipid metabolism by inhibiting S1P lyase that regulates one of the S1P degradation pathways, to reduce retinal photoreceptor damage. The murine 661W cone-like cell line was pretreated with THI, an inhibitor of S1P lyase and exposed to H2O2-induced oxidative stress...
April 13, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28409208/inhibitors-of-ceramide-de-novo-biosynthesis-rescue-damages-induced-by-cigarette-smoke-in-airways-epithelia
#18
Aida Zulueta, Anna Caretti, Giuseppe Matteo Campisi, Andrea Brizzolari, Jose Luis Abad, Rita Paroni, Paola Signorelli, Riccardo Ghidoni
Exposure to cigarette smoke represents the most important risk factor for the development of chronic obstructive pulmonary disease (COPD). COPD is characterized by chronic inflammation of the airways, imbalance of proteolytic activity resulting in the destruction of lung parenchyma, alveolar hypoxia, oxidative stress, and apoptosis. Sphingolipids are structural membrane components whose metabolism is altered during stress. Known as apoptosis and inflammation inducer, the sphingolipid ceramide was found to accumulate in COPD airways and its plasma concentration increased as well...
April 13, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28391533/the-validation-of-calophyllum-brasiliense-guanandi-uses-in-brazilian-traditional-medicine-as-analgesic-by-in-vivo-antinociceptive-evaluation-and-its-chemical-analysis
#19
Luiz Carlos Klein-Júnior, Daniele Zambiasi, Giovana Rocha Salgado, Franco Delle Monache, Valdir Cechinel Filho, Fátima de Campos Buzzi
Calophyllum brasiliense is used as anti-inflammatory and analgesic in Brazilian traditional medicine. Thus, the main purpose of this study is to evaluate the antinociceptive effect of the chloroform fraction of C. brasiliense (CFCB) roots and to investigate its main mechanism of action. The antinociceptive effect of CFCB was evaluated in mice using acetic acid-induced writhing, formalin-induced paw licking, and hot-plate tests and capsaicin- and glutamate-induced nociception. Brasiliensic acid and 1,2-dimethoxyxanthone were isolated and evaluated in writhing test...
April 8, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28382499/sitagliptin-exerts-anti-apoptotic-effect-in-nephrotoxicity-induced-by-cisplatin-in-rats
#20
Rehab S Abdelrahman
Sitagliptin is a selective inhibitor of dipeptidylpeptidase-4 enzyme used for the management of diabetes mellitus type II. The anti-inflammatory, antioxidant, and anti-apoptotic properties of sitagliptin were documented. This study was designed to explore the effect of sitagliptin (10 mg/kg, orally) on nephrotoxicity induced by cisplatin (7 mg/kg, i.p.) in Sprague-Dawley rats. Nephrotoxicity of cisplatin was manifested by elevation in renal somatic index, proteinuria, blood urea nitrogen, creatinine in serum, lactate dehydrogenase, kidney malondialdehyde, NF-κB, Bax, and annexin V...
April 5, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
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