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Pharmacologic study

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https://www.readbyqxmd.com/read/29224253/phytochemical-composition-and-biological-activities-of-dyssodia-tagetiflora-lag
#1
Ana María García-Bores, Amira Arciniegas-Arciniegas, Alma Reyna Campos, Carlos Céspedes-Acuña, Betsaida Avila-Suárez, Julio Alarcón-Enos, Saul Flores-Maya, Adriana Montserrat Espinosa-González, Alfonso Romo de Vivar-Romo, Carlos Pérez Plasencia, José Guillermo Avila-Acevedo
While plants of the genus Dyssodia are used by man to a certain extent, few phytochemical and pharmacological studies have been performed with species of this genus. D. tagetiflora is an endemic plant of Mexico and has been used as fodder. The aim of this research was to isolate and identify the main bioactive components and evaluate the insecticidal, antioxidant, genotoxic and cytoprotective activities of D. tagetiflora. The isolated substances included an essential oil composed of six monoterpenes, and extracts containing two flavonols, three flavonol-glycosides and four thiophenes...
December 10, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29224106/g-protein-coupled-estrogen-receptor-gper-and-sex-specific-metabolic-homeostasis
#2
Geetanjali Sharma, Eric R Prossnitz
Obesity and metabolic syndrome display disparate prevalence and regulation between males and females. Human, as well as rodent, females with regular menstrual/estrous cycles exhibit protection from weight gain and associated chronic diseases. These beneficial effects are predominantly attributed to the female hormone estrogen, specifically 17β-estradiol (E2). E2 exerts its actions via multiple receptors, nuclear and extranuclear estrogen receptor (ER) α and ERβ, and the G-protein-coupled estrogen receptor (GPER, previously termed GPR30)...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29224105/nuclear-and-membrane-actions-of-estrogen-receptor-alpha-contribution-to-the-regulation-of-energy-and-glucose-homeostasis
#3
Maeva Guillaume, Alexandra Montagner, Coralie Fontaine, Françoise Lenfant, Jean-François Arnal, Pierre Gourdy
Estrogen receptor alpha (ERα) has been demonstrated to play a key role in reproduction but also to exert numerous functions in nonreproductive tissues. Accordingly, ERα is now recognized as a key regulator of energy homeostasis and glucose metabolism and mediates the protective effects of estrogens against obesity and type 2 diabetes. This chapter attempts to summarize our current understanding of the mechanisms of ERα activation and their involvement in the modulation of energy balance and glucose metabolism...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29223709/bone-marrow-edema-syndrome-of-the-medial-femoral-condyle-treated-with-extracorporeal-shock-wave-therapy-a-clinical-and-mri-retrospective-comparative-study
#4
Matteo Vitali, Nadim Naim Rodriguez, Alberto Pedretti, Andreas Drossinos, Pierluigi Pironti, Gaia Di Carlo, Gianfranco Fraschini
OBJECTIVE: To determine the validity of Extracorporeal Shock Wave Therapy (ESWT) in the treatment of Bone Marrow Edema (BME) of the medial condyle of the knee DESIGN: Retrospective STUDY SETTING: IRCCS San Raffaele Hospital, Orthopedics Outpatient Clinic PARTICIPANTS: Fifty-six symptomatic patients affected by bone marrow edema of the medial condyle of the knee. Patients were equally divided in a ESWT (Extracorporeal Shock Wave Therapy) treated group and a control group, which was managed conservatively...
December 6, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29223600/trans-%C3%AE%C2%B5-viniferin-is-an-amyloid-%C3%AE-disaggregating-and-anti-inflammatory-drug-in-a-mouse-primary-cellular-model-of-alzheimer-s-disease
#5
Elodie Vion, Guylène Page, Eric Bourdeaud, Marc Paccalin, Jérôme Guillard, Agnès Rioux Bilan
Alzheimer's disease (AD) is marked by several cellular and molecular damage. Therefore, the therapeutic interest of multi-target molecules is increasingly justified. Polyphenols presenting multiple pharmacological effects would be more efficient. In this study, beneficial effects of trans ε-viniferin, a natural polyphenol were thus evaluated. This study reported that this stilbenoid (1) induced the disaggregation of amyloid β (Aβ) peptide and (2) rescued inflammation in murine primary neuronal cultures. These both effects are higher than those of resveratrol, and so, trans ε-viniferin could be a good therapeutic multi-target candidate...
December 6, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/29223599/pharmacological-intervention-and-abstinence-in-smokers-undergoing-cessation-treatment-a-psychophysiological-study
#6
Yong Cui, Jeffrey M Engelmann, Jonathan Xian, Jennifer A Minnix, Cho Y Lam, Maher Karam-Hage, Paul M Cinciripini, Jason D Robinson
As a composite concept, negative affect comprises various aversive emotional experiences, such as irritability and nervousness. It is a critical motivational factor that helps maintain smoking behavior, and contributes significantly to smoking cessation failure as a core withdrawal symptom. Prior research has indicated an important role of nicotinic mechanisms in negative affect processing. The most effective smoking cessation medication, varenicline, targets nicotinic acetylcholine receptors (nAChRs) as a partial agonist, while another first-line cessation medication, bupropion, has shown antagonistic effects on nAChRs...
December 6, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/29223588/-9-o-%C3%AE-l-rhamnopyranosyl-lyoniresinol-from-lespedeza-cuneata-suppresses-ovarian-cancer-cell-proliferation-through-induction-of-apoptosis
#7
Jiwon Baek, Dahae Lee, Tae Kyoung Lee, Ji Hoon Song, Ju Sung Lee, Seong Lee, Sang-Woo Yoo, Ki Sung Kang, Eunjung Moon, Sanghyun Lee, Ki Hyun Kim
Lespedeza cuneata (Dum. Cours.) G. Don. (Fabaceae), known as Chinese bushclover or sericea lespedeza, has been used in traditional medicine to treat diabetes, hematuria, and insomnia, and it has been reported that bioactive compounds from L. cuneata possess various pharmacological properties. However, there has been no study to determine the active compounds from L. cuneata with potential activity against ovarian cancer. This study aimed to isolate cytotoxic compounds from L. cuneata and identify the molecular mechanisms underlying the apoptosis pathway in ovarian cancer cells...
November 28, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29223569/isolated-mangiferin-and-naringenin-exert-antidiabetic-effect-via-ppar%C3%AE-glut4-dual-agonistic-action-with-strong-metabolic-regulation
#8
Ashok K Singh, Vinit Raj, Amit K Keshari, Amit Rai, Pranesh Kumar, Atul Rawat, Biswanath Maity, Dinesh Kumar, Anand Prakash, Arnab De, Amalesh Samanta, Bolay Bhattacharya, Sudipta Saha
In this study, we isolated two compounds from the leaves of Salacia oblonga (SA1, mangiferin and SA2, naringenin), and their structures were confirmed by infrared spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and mass spectrometry. SA1 and SA2 were orally administered to streptozotocin-induced diabetic rats at 50 and 100 mg/kg daily for 15 days. Blood glucose level, serum lipid profile, oxidative stress parameters, histopathology, docking, molecular parameters, and NMR-based metabolic perturbation studies were performed to investigate the pharmacological activities of SA1 and SA2...
December 6, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29223554/oral-administration-of-nigella-sativa-oil-and-thymoquinone-attenuates-long-term-cisplatin-treatment-induced-toxicity-and-oxidative-damage-in-rat-kidney
#9
Zeba Farooqui, Faaiza Shahid, Aijaz Ahmed Khan, Farah Khan
Cisplatin (CP) is an effective anti-cancer drug which causes remarkable toxicity to the kidney, particularly to proximal tubules, by generating reactive oxygen species. Nigella sativa (NS), commonly known as "black cumin" reduces the progression of various kidney disorders. Thymoquinone (TQ), the major bioactive constituent of NS seeds, has been credited for various pharmacological effects of NS. Since, a typical clinical CP dosing regimen involves CP administration in multiple cycles over a long time duration, hence the present study aimed to evaluate the renoprotective efficacy of NS oil and TQ against multiple dose CP treatment induced deleterious biochemical and histological alterations in rat kidney...
December 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29223172/association-between-the-use-of-benzodiazepines-and-opioids-with-the-risk-of-falls-and-hip-fractures-in-older-adults
#10
Manuel E Machado-Duque, Juan Pablo Castaño-Montoya, Diego A Medina-Morales, Alejandro Castro-Rodríguez, Alexandra González-Montoya, Jorge E Machado-Alba
BACKGROUND: To determine the association between the use of opioids and benzodiazepines and the risk of falls with hip fracture in populations older than 65 years in Colombia. METHODS: A case-control study with patients older than 65 years with diagnosis of hip fracture. Two controls were obtained per case. The drugs dispensed in the previous 30 days were identified. Sociodemographic, diagnostic, pharmacological (opioids and benzodiazepines), and polypharmacy variables were analyzed...
December 10, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/29223124/activation-of-mitochondrial-katp-channels-mediates-neuroprotection-induced-by-chronic-morphine-preconditioning-in-hippocampal-ca-1-neurons-following-cerebral-ischemia
#11
Maedeh Arabian, Nahid Aboutaleb, Mansoureh Soleimani, Marjan Ajami, Rouhollah Habibey, Hamidreza Pazoki-Toroudi
PURPOSE: Pharmacologic preconditioning, through activating several mechanisms and mediators, can increase the tolerance of different tissues against ischemia/reperfusion (I/R) injury. Recent studies have shown that morphine preconditioning has protective effects in different organs, especially in the heart. Nevertheless, its mechanisms are not well elucidated in the brain. The present study aimed to clarify whether the activation of mitochondrial KATP (mKATP) channels in chronic morphine (CM) preconditioning could decrease hippocampus damage following I/R injury...
December 6, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/29222967/stimulation-of-the-endogenous-incretin-glucose-dependent-insulinotropic-peptide-by-enteral-dextrose-improves-glucose-homeostasis-and-inflammation-in-murine-endotoxemia
#12
Faraaz Ali Shah, Srikanth Singamsetty, Lanping Guo, Byron W Chuan, Sherie McDonald, Bryce A Cooper, Brett J O'Donnell, Darko Stefanovski, Burton Wice, Yingze Zhang, Christopher P O'Donnell, Bryan J McVerry
Loss of glucose homeostasis during sepsis is associated with increased organ dysfunction and higher mortality. Novel therapeutic strategies to promote euglycemia in sepsis are needed. We have previously shown that early low-level intravenous (IV) dextrose suppresses pancreatic insulin secretion and induces insulin resistance in septic mice, resulting in profound hyperglycemia and worsened systemic inflammation. In this study, we hypothesized that administration of low-level dextrose via the enteral route would stimulate intestinal incretin hormone production, potentiate insulin secretion in a glucose-dependent manner, and thereby improve glycemic control in the acute phase of sepsis...
November 21, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29222822/coronary-microvascular-dysfunction-and-myocardial-contractile-reserve-in-women-with-angina-and-no-obstructive-coronary-artery-disease
#13
Marie M Michelsen, Adam Pena, Naja D Mygind, Jan Bech, Ida Gustafsson, Jens Kastrup, Henrik S Hansen, Nis Høst, Peter R Hansen, Eva Prescott
BACKGROUND: Coronary microvascular dysfunction (CMD) is a potential cause of myocardial ischemia and may affect myocardial function at rest and during stress. We investigated whether CMD was associated with left ventricular diastolic and systolic function at rest and during pharmacologically induced hyperemic stress. METHODS: In a prospective cohort study, we included 963 women with angina, left ventricular ejection fraction (LVEF) >45%, and an invasive coronary angiogram without significant stenosis (<50%)...
December 8, 2017: Echocardiography
https://www.readbyqxmd.com/read/29222766/electrical-velocimetry-for-non-invasive-monitoring-of-the-closure-of-the-ductus-arteriosus-in-preterm-infants
#14
Ana Rodríguez Sánchez de la Blanca, M Sánchez Luna, N González Pacheco, M Arriaga Redondo, N Navarro Patiño
Closure of a patent ductus arteriosus (PDA) in preterm infants modifies cardiac output and induces adaptive changes in the hemodynamic situation. The present study aims to analyze those changes, through a non-invasive cardiac output monitor based on blood electrical velocimetry, in preterm babies. A prospective observational study of preterm infants with a gestational age of less than 28 weeks, and a hemodynamic significant PDA, requires intravenous ibuprofen or surgical closure. All patients were monitored with electrical velocimetry before treatment and through the following 72 h...
December 8, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29222605/the-endocannabinoid-system-in-cardiovascular-function-novel-insights-and-clinical-implications
#15
REVIEW
Salvador Sierra, Natasha Luquin, Judith Navarro-Otano
RATIONALE: Cardiovascular disease is now recognized as the number one cause of death in the world, and the size of the population at risk continues to increase rapidly. The dysregulation of the endocannabinoid (eCB) system plays a central role in a wide variety of conditions including cardiovascular disorders. Cannabinoid receptors, their endogenous ligands, as well as enzymes conferring their synthesis and degradation, exhibit overlapping distributions in the cardiovascular system. Furthermore, the pharmacological manipulation of the eCB system has effects on blood pressure, cardiac contractility, and endothelial vasomotor control...
December 8, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/29222591/dementia-with-lewy-bodies-and-parkinson-s-disease-dementia-current-concepts-and-controversies
#16
REVIEW
Kurt A Jellinger
Dementia with Lewy bodies (DLB) and Parkinson's disease-dementia (PDD), although sharing many clinical, neurochemical and morphological features, according to DSM-5, are two entities of major neurocognitive disorders with Lewy bodies of unknown etiology. Despite considerable clinical overlap, their diagnosis is based on an arbitrary distinction between the time of onset of motor and cognitive symptoms: dementia often preceding parkinsonism in DLB and onset of cognitive impairment after onset of motor symptoms in PDD...
December 8, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29222469/hippocampal-oxytocin-receptors-are-necessary-for-discrimination-of-social-stimuli
#17
Tara Raam, Kathleen M McAvoy, Antoine Besnard, Alexa Veenema, Amar Sahay
Oxytocin receptor (Oxtr) signaling in neural circuits mediating discrimination of social stimuli and affiliation or avoidance behavior is thought to guide social recognition. Remarkably, the physiological functions of Oxtrs in the hippocampus are not known. Here we demonstrate using genetic and pharmacological approaches that Oxtrs in the anterior dentate gyrus (aDG) and anterior CA2/CA3 (aCA2/CA3) of mice are necessary for discrimination of social, but not non-social, stimuli. Further, Oxtrs in aCA2/CA3 neurons recruit a population-based coding mechanism to mediate social stimuli discrimination...
December 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/29222026/transcriptome-analysis-provides-insights-into-the-immune-responsive-pathways-and-genes-in-the-head-kidney-of-tiger-grouper-epinephelus-fuscoguttatus-fed-with-spatholobus-suberectus-phellodendron-amurense-or-eclipta-prostrata
#18
Yan Cai, Shifeng Wang, Weiliang Guo, Zhenyu Xie, Yu Zheng, Zhenjie Cao, Yongcan Zhou
The tiger grouper, Epinephelus fuscoguttatus, is an economically important fish in Southeast Asia but has been plagued by several diseases. Spatholobus suberectus (S), Phellodendron amurense (P), and Eclipta prostrate (E) are three commonly used Chinese medicinal herbs. Although previous pharmacological and clinical studies indicated that S, P, and E possess a variety of beneficial functions in mammals, little is known about their functions in farmed fish and the underlying molecular mechanism of their actions...
December 6, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29221793/pannexin-1-channel-dysfunction-in-the-medial-prefrontal-cortex-mediates-depressive-like-behaviors-induced-by-chronic-social-defeat-stress-and-administration-of-mefloquine-in-mice
#19
Ming Ni, Jin-Gang He, Hai-Yun Zhou, Xiao-Jia Lu, Yuan-Lang Hu, Li Mao, Fang Wang, Jian-Guo Chen, Zhuang-Li Hu
Mefloquine (MFQ) is widely used for the treatment of malaria clinically. Apart from antimalarial effect, psychiatric side effects such as depression and anxiety of MFQ have been reported. Interestingly, MFQ is also known as a broad-spectrum pannexin-1 (Panx1) inhibitor. Panx1 is a new gap junction channel expressed in the brain which mediates efflux of adenosine triphosphate (ATP). Although exogenous ATP has been known to produce a potential antidepressant-like effect, little is known about the role of Panx1 in pathophysiology of depression, especially the depression induced by administration of MFQ...
December 5, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29221588/eau-thermale-d%C3%A2-av%C3%A3-ne-et-dermatite-atopique-av%C3%A3-ne%C3%A2-s-thermal-water-and-atopic-dermatitis
#20
D Guerrero, E Garrigue
Atopic dermatitis (AD) is the most frequent disease treated at the Avène hydrotherapy center. Children represent a large part of the population due to the high prevalence of AD in early childhood. Avène thermal spring water (ATSW) has been known for its therapeutic effects since the middle of the 18th century. It has been greatly studied over the last decades, with a comprehensive fundamental, pharmaco-clinical and clinical approach. Cohort studies using the Scoring Atopic Dermatitis (SCORAD) clinical score and the Dermatology Life Quality Index (DLQI) or the Children's Dermatology Life Quality Index [CDLQI]) quality of life scores, allowed to confirm the clinical results obtained from the previous studies...
January 2017: Annales de Dermatologie et de Vénéréologie
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