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https://www.readbyqxmd.com/read/27915431/time-dependent-postmortem-redistribution-of-morphine-and-its-metabolites-in-blood-and-alternative-matrices-application-of-ct-guided-biopsy-sampling
#1
Sandra N Staeheli, Dominic Gascho, Lars C Ebert, Thomas Kraemer, Andrea E Steuer
Interpretation of postmortem morphine concentrations in forensic toxicology provides several pitfalls such as missing information on tolerance, analyte stability, or postmortem redistribution (PMR). Recently, it had been shown that computed tomography (CT)-guided collection of biopsies using a robotic arm (virtobot) provides a valuable strategy for systematic studies on time-dependent PMR. Using this technique, time-dependent PMR of morphine and its metabolites was investigated in 12 cases. At admission to the institute (t1), femoral and heart blood (right ventricle) as well as biopsies from the right lung, the right kidney, liver, spleen, and muscle tissue were collected...
December 3, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27915390/lifetime-substance-use-as-a-predictor-of-postpartum-mental-health
#2
Betty-Shannon Prevatt, Sarah L Desmarais, Patricia A Janssen
Postpartum mood disorders (PPMD) affect approximately 10-20% of women and have adverse consequences for both mom and baby. Lifetime substance use has received limited attention in relation to PPMD. The present study examined associations of lifetime alcohol and drug use with postpartum mental health problems. Women (n = 100) within approximately 3 months postpartum (M = 2.01, SD = 1.32) participated in semi-structured interviews querying lifetime substance use, mental health history, and postpartum symptoms of anxiety, stress, posttraumatic stress disorder (PTSD), depression, and obsessive compulsive disorder...
December 3, 2016: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/27915343/intravitreal-dexamethasone-implant-for-the-treatment-of-postoperative-macular-edema
#3
André Klamann, Katharina Böttcher, Philipp Ackermann, Gerd Geerling, Marc Schargus, Rainer Guthoff
INTRODUCTION: Macular edema after cataract surgery (Irvine-Gass syndrome) or pars plana vitrectomy is a postoperative complication which can lead to permanent visual loss. Increased inflammatory substances, such as prostaglandins and cytokines, are discussed to be causative. Currently, there are no evidence-based guidelines for the treatment of postoperative macular edema. Intravitreal dexamethasone (DEX) could be effective by its anti-inflammatory effect. We examined the functional and morphological results of treatment with 0...
December 3, 2016: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/27915237/placental-morphology-in-fetal-alcohol-spectrum-disorders
#4
Marlene Tai, Anna Piskorski, Jennifer C W Kao, Lynn A Hess, Suzanne M de la Monte, Füsun Gündoğan
AIMS: Maternal alcohol drinking adversely affects pregnancy outcome. Although fetal health and development are highly dependent upon the integrity of placentation, little is known about placental morphology following gestational exposure to alcohol in humans. METHODS: In this clinical study, subjects were recruited between 2010 and 2013 from an outpatient substance abuse and mental health treatment center for women. Data collected included maternal age, substance abuse history, comorbidities, pregnancy outcomes, gestational age at delivery, birth weight and placental weight...
December 3, 2016: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/27915198/a-new-approach-to-the-rapid-separation-of-isomeric-compounds-in-a-silybum-marianum-extract-using-uhplc-core-shell-column-with-f5-stationary-phase
#5
Jakub Fibigr, Dalibor Šatínský, Petr Solich
In this paper, a new ultra-high performance liquid chromatography (UHPLC) method using a core-shell column with a pentafluorophenyl stationary phase for separation of seven active compounds of a Silybum marianum extract was developed and validated. Silymarin, an extract of Silybum marianum, is known for its abilities to protect the liver from toxic substances, hepatitis therapy, and anti-tumour activity. Silymarin is currently being widely used in commercial preparations and herbal teas. Separation of seven compounds contained in the Silybum marianum extract (taxifolin, silychristin, silydianin, silybin A, silybin B, isosilybin A, isosilybin B) and other substances occurring in real samples was performed on the Kinetex 1...
November 27, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27915193/metabolic-fate-and-detectability-of-the-new-psychoactive-substances-2-4-bromo-2-5-dimethoxyphenyl-n-2-methoxyphenyl-methyl-ethanamine-25b-nbome-and-2-4-chloro-2-5-dimethoxyphenyl-n-2-methoxyphenyl-methyl-ethanamine-25c-nbome-in-human-and-rat-urine-by-gc-ms
#6
Achim T Caspar, Simon D Brandt, Andreas E Stoever, Markus R Meyer, Hans H Maurer
25B-NBOMe and 25C-NBOMe are potent 5-HT2A receptor agonists that have been associated with inducing hallucinogenic effects in drug users and severe intoxications. This paper describes the identification of their metabolites in rat and human urine by liquid chromatography (LC)-high resolution (HR)-MS/MS, the comparison of metabolite formation in vitro and in vivo and in different species, the general involvement of human cytochrome-P450 (CYP) isoenzymes on their metabolism steps, and their detectability by standard urine screening approaches (SUSAs) using GC-MS, LC-MS(n), or LC-HR-MS/MS...
November 27, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27915143/single-and-mixture-toxicity-of-three-organic-uv-filters-ethylhexyl-methoxycinnamate-octocrylene-and-avobenzone-on-daphnia-magna
#7
Chang-Beom Park, Jiyi Jang, Sanghun Kim, Young Jun Kim
In freshwater environments, aquatic organisms are generally exposed to mixtures of various chemical substances. In this study, we tested the toxicity of three organic UV-filters (ethylhexyl methoxycinnamate, octocrylene, and avobenzone) to Daphnia magna in order to evaluate the combined toxicity of these substances when in they occur in a mixture. The values of effective concentrations (ECx) for each UV-filter were calculated by concentration-response curves; concentration-combinations of three different UV-filters in a mixture were determined by the fraction of components based on EC25 values predicted by concentration addition (CA) model...
December 1, 2016: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27915091/electroconvulsive-stimulation-transiently-enhances-the-permeability-of-the-rat-blood-brain-barrier-and-induces-astrocytic-changes
#8
Masanobu Ito, Kuerban Bolati, Tomoya Kinjo, Koichiro Ichimura, Akiko Furuta, Declan M McLoughlin, Toshihito Suzuki, Heii Arai
The blood-brain barrier (BBB) plays important roles in both the physiological and pharmacological state of the brain. Transiently enhancing the permeability of the BBB may allow use of more types of medications for neuropsychiatric diseases. Several studies have demonstrated that seizures cause a transient decrease in BBB integrity. We studied the timing of BBB changes following seizures and the role of astrocytes in this process. Rats received 10 applications of electroconvulsive stimulation (ECS). They were then infused with sodium fluorescein, a fluorescent substance that rarely passes the BBB, via the inferior vena cava...
November 30, 2016: Brain Research Bulletin
https://www.readbyqxmd.com/read/27915077/how-do-government-regulations-influence-the-ability-to-practice-chinese-herbal-medicine-in-western-countries
#9
Tom Fleischer, Yi-Chang Su, Sunny Jui-Shan Lin
ETHNOPHARMACOLOGICAL RELEVANCE: The regulation policies of substances used in Chinese Herbal Medicine (CHM), have a direct influence on the ability of health providers to practice in the clinic. AIM OF THE STUDY: We set out to assess the truth behind the assumption that practice of CHM in the west is constrained by the regulations imposed by authorities in western countries. MATERIALS AND METHODS: For the first part of our study we surveyed and compiled lists of banned and restricted Chinese Materia Medica (CMM) from six countries: USA, UK, Germany, Israel, Canada and Australia...
November 30, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27914990/presence-of-melanopsin-in-human-crystalline-lens-epithelial-cells-and-its-role-in-melatonin-synthesis
#10
Hanan Awad Alkozi, Xiaoyu Wang, Maria Jesus Perez de Lara, Jesus Pintor
Melanopsin is a non-image forming photoreceptor known to be present in the retina and it is considered to have light regulated tasks among other functions. In the present work, melanopsin presence in human lens epithelial cells as well as in human lens tissue is described for the first time. Moreover, studying the concentration of melatonin and its synthesising enzyme AANAT proved a clear link between melanopsin activation and the suppression of melatonin synthesis. Melanopsin sensitivity to specific wavelength (465-480 nm, blue) was confirmed after making temporal studies incubating lens epithelial cells under light, red, green, blue and total darkness for 2, 4, 8, 12 h and analysing the concentration of both melatonin and its synthesising enzyme AANAT, discovering that melatonin levels after submitting cells to total darkness are significantly higher to ones submitted to white or specifically blue light (***p < 0...
November 30, 2016: Experimental Eye Research
https://www.readbyqxmd.com/read/27914973/victimization-suicidal-ideation-and-alcohol-use-from-age-13-to-15-years-support-for-the-self-medication-model
#11
Shawn Marschall-Lévesque, Natalie Castellanos-Ryan, Sophie Parent, Johanne Renaud, Frank Vitaro, Michel Boivin, Richard E Tremblay, Jean R Séguin
PURPOSE: Recent years have seen increased coverage of adolescent victimization and suicide. Both adolescent peer victimization and substance use have been associated with suicidal ideation, with evidence suggesting that all three factors are interrelated. There are at least four models which can explain the associations between these factors (i.e., self-medication, secondary mental disorder, bidirectional, and common factor). However, none of them is being empirically supported as the dominant model because few longitudinal studies have explored the association between these factors...
November 30, 2016: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/27914629/cytoplasmic-fmr1-interacting-protein-2-is-a-major-genetic-factor-underlying-binge-eating
#12
Stacey L Kirkpatrick, Lisa R Goldberg, Neema Yazdani, R Keith Babbs, Jiayi Wu, Eric R Reed, David F Jenkins, Amanda F Bolgioni, Kelsey I Landaverde, Kimberly P Luttik, Karen S Mitchell, Vivek Kumar, W Evan Johnson, Megan K Mulligan, Pietro Cottone, Camron D Bryant
BACKGROUND: Eating disorders are lethal and heritable; however, the underlying genetic factors are unknown. Binge eating is a highly heritable trait associated with eating disorders that is comorbid with mood and substance use disorders. Therefore, understanding its genetic basis will inform therapeutic development that could improve several comorbid neuropsychiatric conditions. METHODS: We assessed binge eating in closely related C57BL/6 mouse substrains and in an F2 cross to identify quantitative trait loci associated with binge eating...
October 25, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/27913825/hypolipidemic-effect-of-%C3%AE-caryophyllene-to-treat-hyperlipidemic-rats
#13
Matheus D Baldissera, Carine F Souza, Thirssa H Grando, Pedro H Doleski, Aline A Boligon, Lenita M Stefani, Silvia G Monteiro
The aim of this study was to evaluate the effect of β-caryophyllene on hypercholesterolemia using a model of hyperlipidemia induced by Triton WR-1339 in rats, as well as its possible effect on hepatic antioxidant enzymes. Thus, total cholesterol, triglycerides, low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol were measured in serum, while reactive oxygen species (ROS), thiobarbituric acid reactive substances (TBARS), hepatic 3-hydroxy-3-methylglutayl coenzyme A (HMG-CoA) reductase, superoxide dismutase (SOD), and catalase (CAT) activities were measured in the hepatic tissue...
December 2, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/27913241/evaluation-of-highly-branched-cyclic-dextrin-in-inhalable-particles-of-combined-antibiotics-for-the-pulmonary-delivery-of-anti-tuberculosis-drugs
#14
Kazunori Kadota, Arisa Senda, Hideaki Tagishi, John Oluwasogo Ayorinde, Yuichi Tozuka
This work aims to identify a suitable formulation for the pulmonary delivery of combinations of inhalational drugs using highly branched cyclic dextrin (HBCD) macromolecules. We compared the effectiveness between powders prepared from HBCD with those prepared from five alternative excipients (lactose, maltose, sucrose, β-cyclodextrin and methyl β-cyclodextrin) in the pulmonary delivery of a single-dosage form of two anti-tuberculosis drugs (isoniazid and rifampicin). Fine particles of untreated active pharmaceutical ingredients (APIs) and combination products using excipients were prepared by spray drying...
November 29, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27912980/lack-of-sustained-efficacy-for-alcohol-based-surgical-hand-rubs-containing-residual-active-ingredients-according-to-en-12791
#15
REVIEW
G Kampf, A Kramer, M Suchomel
The World Health Organization recommends the use of hand rubs with 'sustained activity' for surgical hand preparation. This review aims to verify whether any of the alcohol-based hand rubs containing non-volatile 'active ingredients' such as chlorhexidine digluconate (CHG), mecetronium ethylsulphate (MES), or ortho-phenylphenol (OPP) provides such sustained efficacy for surgical hand disinfection. Literature was searched to find studies according to EN 12791. Published data sets were analysed to verify whether any of the formulations has a superior efficacy (P<0...
November 12, 2016: Journal of Hospital Infection
https://www.readbyqxmd.com/read/27912957/acupuncture-and-related-techniques-during-perioperative-period-a-literature-review
#16
REVIEW
H Volkan Acar
Acupuncture has been used in the Far East for more than 2000 years. Since the early 1970s, this technique has been gaining popularity among Western medical community. A number of studies suggest that its mechanism of effect can be explained in biomedical terms. In this context, a number of transmitters and modulators including beta-endorphin, serotonin, substance P, interleukins, and calcitonin gene-related peptide are released. For that reason, acupuncture can be used in a wide variety of clinical conditions...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27912908/childhood-sexual-abuse-and-substance-abuse-a-gender-paradox
#17
Lil Tonmyr, Margot Shields
We examine associations between childhood sexual abuse (CSA) and substance abuse, the role of mental health indicators as mediators in these associations and whether or not associations differ by gender. Data are from 14,063 respondents aged 18-76 years from the 2004-2005 Canadian Gender, Alcohol, and Culture: An International Study (GENACIS). Multiple logistic regression models were used to examine associations between CSA and substance abuse variables, controlling for socio-demographic factors. Odds were adjusted by indicators of mental health to assess if these variables mediated associations between CSA and substance abuse...
November 29, 2016: Child Abuse & Neglect
https://www.readbyqxmd.com/read/27912887/nephroprotective-effects-of-%C3%AE-bisabolol-against-ischemic-reperfusion-acute-kidney-injury
#18
Tiago Lima Sampaio, Ramon Róseo Paula Pessoa Bezerra de Menezes, Marcus Felipe Bezerra da Costa, Gdayllon Cavalcante Meneses, Mauren Cristina Villalta Arrieta, Adriano José Maia Chaves Filho, Glayciane Bezerra de Morais, Alexandre Braga Libório, Renata Sousa Alves, Janaína Serra Azul Monteiro Evangelista, Alice Maria Costa Martins
BACKGROUND: Ischemia/reperfusion (I/R) in kidney is commonly related to acute kidney injury (AKI), essentially through oxidative stress. (-)-α-Bisabolol is a sesquiterpene isolated from the essential oil of a variety of plants, including chamomile, which has important antioxidant activity. STUDY DESIGN: This study intends to evaluate the nephroprotective activity of (-)-α-bisabolol (Bis) in both in vivo and in vitro models of kidney I/R. METHODS: Male Wistar rats were submitted to right nephrectomy, followed by ischemia by clamping of the renal artery in the left kidney for 60min...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27912730/homesick-residential-and-care-patterns-in-patients-with-severe-mental-illness
#19
Liselotte D de Mooij, Martijn Kikkert, Nick M Lommerse, Jan Theunissen, Mariken B de Koning, Lieuwe de Haan, Aartjan T F Beekman, Pim W R A Duurkoop, Jack J M Dekker
BACKGROUND: Changes in the residential and care settings of patients with severe mental illness (SMI) are a concern because of the large variety of possible negative consequences. This study describes patterns of changes in the residential and care settings of SMI patients and explores associations between these changes, sociodemographics, and clinical characteristics. METHODS: From January 2006 to January 2012, all data relating to changes in residential and/or care setting by SMI patients (N = 262) were collected from electronic case files...
December 3, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27911669/bidirectional-relations-between-different-forms-of-prosocial-behaviors-and-substance-use-among-female-college-student-athletes
#20
Alexandra N Davis, Gustavo Carlo, Sam Hardy, Janine Olthius, Byron L Zamboanga
Bidirectional, longitudinal relations between alcohol and marijuana use and prosocial behaviors in women college student athletes were examined. Participants were 187 female college students (Mage = 19.87 years; 91% White) who completed questionnaires on their use of marijuana and alcohol, and six forms of prosocial behaviors across 6 years (2004-2010). The findings yield overall evidence that earlier marijuana use predicted lower levels of most specific forms of prosocial behaviors for women athletes in later young adulthood...
December 2, 2016: Journal of Social Psychology
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