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https://www.readbyqxmd.com/read/28238767/evaluation-of-the-cart-peptide-expression-in-morphine-sensitization-in-male-rats
#1
Atefeh Bakhtazad, Nasim Vousooghi, Behzad Garmabi, Mohammad Reza Zarrindast
The importance of Cocaine- and amphetamine-regulated transcript (CART) peptide in reinforcing effects of addictive drugs specially alcohol and psychostimulants has been stablished. Involvement of CART peptide in rewarding effects of opioids in brain has recently been reported. Here we have studied the expression of CART mRNA and peptide in the reward pathway in morphine-induced sensitization phenomenon and also evaluated the peptide level fluctuations in CSF and plasma. Male Wistar rats received 7-day morphine injection (20mg/kg) and then after a 7-day washout period, a challenge dose of 10mg/kg morphine was administered and locomotor activity and oral stereotypical behaviors were recorded...
February 23, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28237885/assessment-of-tobacco-alcohol-and-cannabinoid-metabolites-in-645-meconium-samples-of-newborns-compared-to-maternal-self-reports
#2
Sandrine Lamy, Benjamin Hennart, Estelle Houivet, Sylvain Dulaurent, Heloise Delavenne, Jacques Benichou, Delphine Allorge, Stéphane Marret, Florence Thibaut
Prenatal psychoactive substance exposure has significant impact on neonatal health and child development and the development of reliable biomarkers is critical. Meconium presents several advantages for detecting prenatal exposure to psychoactive substances, as it is easy to collect and provides a broad time frame of exposure (third trimester). The aim of our study was to compare the prevalence of alcohol, tobacco and/or cannabis use during the third trimester of pregnancy (using maternal self-reports) with the results of meconium testing of their metabolites in newborns (cotinine, ethyl-glucuronide (EtG) and cannabinoid metabolites)...
February 13, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28237884/effects-of-crack-cocaine-addiction-and-stress-related-genes-on-peripheral-bdnf-levels
#3
Diego L Rovaris, Jaqueline B Schuch, Rodrigo Grassi-Oliveira, Breno Sanvicente-Vieira, Bruna S da Silva, Consuelo Walss-Bass, Diana Müller, Anderson R Stolf, Lisia von Diemen, Keila M M Ceresér, Thiago G Pianca, Claudia M Szobot, Felix H P Kessler, Tatiana Roman, Claiton H D Bau
This study examined the effects of glucocorticoid receptor (NR3C1), corticotropin-releasing hormone receptor 1 (CRHR1), and brain-derived neurotrophic factor (BDNF) genes on susceptibility to crack cocaine addiction and BDNF levels. Crack addicted patients who sought treatment (n = 280) and non-addicted individuals (n = 241) were assessed. Three SNPs in NR3C1 (rs6198, rs41423247, and rs10052957), three in CRHR1 (rs12944712, rs110402, and rs878886), and one in BDNF (rs6265) were genotyped. No significant effect was seen in the case-control analyses...
February 11, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28237804/s-adenosyl-methionine-sam-attenuates-the-development-of-tolerance-to-analgesic-activity-of-morphine-in-rats
#4
Jatinder Katyal, Hemant Kumar, Dinesh Joshi, Yogendra Kumar Gupta
BACKGROUND: Development of tolerance to analgesic effect, on chronic administration of morphine, limits its clinical usefulness in pain management. S-adenosyl methionine (SAM) used for arthritis and approved as a supplement in many countries including United States was evaluated for reducing morphine tolerance. METHODS: Male 'Wistar' rats were used. The analgesic activity was determined using tail flick analgesiometer (Columbus Instruments, USA). Rats given morphine (7mg/kg), intraperitoneally (ip), once daily for 5days developed tolerance to analgesic effect...
February 22, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28237763/continued-optimization-of-the-m5-nam-ml375-discovery-of-vu6008667-an-m5-nam-with-high-cns-penetration-and-a-desired-short-half-life-in-rat-for-addiction-studies
#5
Kevin M McGowan, Kellie D Nance, Hykeyung P Cho, Thomas M Bridges, P Jeffrey Conn, Carrie K Jones, Craig W Lindsley
This letter describes the continued optimization of M5 NAM ML375 (VU0483253). While a valuable in vivo tool compound, ML375has an excessively long elimination half-life in rat (t1/2=80h), which can be problematic in certain rodent addiction paradigms (e.g., reinstatement). Thus, we required an M5 NAM of comparable potency to ML375, but with a rat t1/2 of less than 4h. Steep SAR plagued this chemotype, and here we detail aniline replacements that offered some improvements over ML375, but failed to advance. Ultimately, incorporation of a single methyl group to the 9b-phenyl ring acted as a metabolic shunt, providing (S)-11 (VU6008667), an equipotent M5 NAM, with high CNS penetration, excellent selectivity versus M1-4 and the desired short half-life (t1/2=2...
February 13, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28237710/extended-access-methamphetamine-self-administration-elicits-neuroinflammatory-response-along-with-blood-brain-barrier-breakdown
#6
Joana Gonçalves, Ricardo A Leitão, Alejandro Higuera-Matas, María Amparo Assis, Santiago M Coria, Carlos Fontes-Ribeiro, Emilio Ambrosio, Ana Paula Silva
Methamphetamine (METH) is a highly addictive psychostimulant drug that can lead to neurological and psychiatric abnormalities. Several studies have explored the central impact of METH use, but the mechanism(s) underlying blood-brain barrier (BBB) dysfunction and associated neuroinflammatory processes after chronic METH consumption are still unclear. Important findings in the field are mainly based on in vitro approaches and animal studies using an acute METH paradigm, and not much is known about the neurovascular alterations under a chronic drug use...
February 22, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28237362/intravenous-buprenorphine-a-substitute-for-naloxone-in-methadone-overdosed-patients
#7
Nasim Zamani, Hossein Hassanian-Moghaddam
Administration of naloxone is a common treatment for opioid-dependent patients who present with respiratory depression. Although safe in opioid-naive patients, naloxone may cause severe and even life-threatening complications in opioid-dependent patients, including acute respiratory distress syndrome and myocardial infarction. It has been suggested that administration of buprenorphine, a partial μ-opioid receptor agonist, to an opioid-intoxicated patient may result in reversal of respiratory depression with less severe withdrawal signs and symptoms...
February 23, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28237133/reward-processing-and-mood-related-symptoms-an-rdoc-and-translational-neuroscience-perspective
#8
REVIEW
Robin Nusslock, Lauren B Alloy
BACKGROUND: Two objectives of the NIMH Research Domain Criteria (RDoC) initiative are to identify (a) mechanisms that are common to multiple psychiatric disorders, and (b) mechanisms that are unique to specific psychiatric symptoms, and that reflect markers of differential risk for these symptoms. With respect to these objectives, a brain-behavior dimension that has received considerable attention and that is directly relevant to the Positive Valence Systems domain of the RDoC initiative involves reward processing...
February 4, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28236739/food-addiction-in-children-associations-with-obesity-parental-food-addiction-and-feeding-practices
#9
T Burrows, J Skinner, M A Joyner, J Palmieri, K Vaughan, A N Gearhardt
Food addiction research in children is limited, and to date addictive-like eating behaviors within families have not been investigated. The aim of this study is to understand factors associated with addictive-like eating in children. The association between food addiction in children with obesity, parental food addiction, and parental feeding practices (i.e., restriction, pressure to eat, monitoring) was investigated. Parents/primary caregivers (aged≥18years) of children aged 5-12years, recruited and completed an online cross-sectional survey including demographics, the Yale Food Addiction Scale (YFAS), and the Child Feeding Questionnaire (CFQ)...
February 16, 2017: Eating Behaviors
https://www.readbyqxmd.com/read/28236511/do-patient-characteristics-moderate-the-effect-of-extended-release-naltrexone-xr-ntx-for-opioid-use-disorder
#10
Peter D Friedmann, Donna Wilson, Edward V Nunes, Randall Hoskinson, Joshua D Lee, Michael Gordon, Sean M Murphy, Richard J Bonnie, Donna T Chen, Tamara Y Boney, Charles P O'Brien
BACKGROUND: Extended release naltrexone (XR-NTX) injected intramuscularly monthly has been shown to reduce relapse in persons with opioid use disorder. Baseline factors, including patients' demographics, comorbidities and lifestyle, may help identify patients who will benefit most or least from XR-NTX treatment. METHODS: Potential moderators of XR-NTX's effect were examined in the largest North American randomized open-label effectiveness trial of XR-NTX. Relapse status (Yes/No) at 6-month follow-up was regressed on treatment group (XR-NTX, N=153; or Treatment-as-Usual [TAU], N=155), baseline covariates, and their two-way interaction to identify moderator effects...
February 21, 2017: Journal of Substance Abuse Treatment
https://www.readbyqxmd.com/read/28236159/an-examination-of-care-practices-of-pregnant-women-incarcerated-in-jail-facilities-in-the-united-states
#11
C M Kelsey, Nickole Medel, Carson Mullins, Danielle Dallaire, Catherine Forestell
OBJECTIVE: The number of incarcerated women in the United States has been steadily increasing over the last 30 years. An estimated 6-10% of these women are pregnant at intake. Previous studies on the health needs and care of pregnant incarcerated women have focused mainly on prison settings. Therefore, we examined the pregnancy-related accommodations and health care provided for regional jail populations. METHOD: The present study is a quantitative survey (administered through phone or email to employees of predominately jail medical facilities) of common practices and policies employed across 53 jail facilities in the United States as a function of geographic region (North vs...
February 24, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28235136/amphetamine-treatment-affects-the-extra-hypothalamic-vasopressinergic-system-in-a-sex-and-nucleus-dependent-manner
#12
Catalina Ahumada, Carolina Bahamondes, Cledi A Cerda, Roxana A Silva, Gonzalo Cruz, Pablo R Moya, Ramón Sotomayor-Zárate, Georgina M Renard
The lateral septum (LS), a brain structure implicated in addictive behaviors, regulates the activation of dopaminergic neurons in the ventral tegmental area. Vasopressinergic projections from the extended amygdala to the LS, which are sexually dimorphic, could be responsible for the vulnerability to addiction in a sex-dependent manner. The aim of the present work is to study modulatory effects of amphetamine (AMPH) on the expression of vasopressin (AVP) in the vasopressinergic extra-hypothalamic system in sensitized male and female rats...
February 24, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28233639/myc-master-regulator-of-immune-privilege
#13
REVIEW
Stephanie C Casey, Virginie Baylot, Dean W Felsher
Cancers are often initiated by genetic events that activate proto-oncogenes or inactivate tumor-suppressor genes. These events are also crucial for sustained tumor cell proliferation and survival, a phenomenon described as oncogene addiction. In addition to this cell-intrinsic role, recent evidence indicates that oncogenes also directly regulate immune responses, leading to immunosuppression. Expression of many oncogenes or loss of tumor suppressors induces the expression of immune checkpoints that regulate the immune response, such as PD-L1...
February 20, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28233509/targeting-phenotypically-tolerant-mycobacterium-tuberculosis
#14
Ben Gold, Carl Nathan
While the immune system is credited with averting tuberculosis in billions of individuals exposed to Mycobacterium tuberculosis, the immune system is also culpable for tempering the ability of antibiotics to deliver swift and durable cure of disease. In individuals afflicted with tuberculosis, host immunity produces diverse microenvironmental niches that support suboptimal growth, or complete growth arrest, of M. tuberculosis. The physiological state of nonreplication in bacteria is associated with phenotypic drug tolerance...
January 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28232852/family-interactions-regarding-fathers-smoking-and-cessation-in-shanghai-china
#15
Carla J Berg, Pinpin Zheng, Michelle C Kegler
INTRODUCTION: Spousal support predicts smoking cessation. China is the world's largest consumer of tobacco, with drastic differences in smoking prevalence among men and women. Thus, understanding marital interactions around husbands' smoking has implications for cultures with similarly large gender disparities in smoking. AIMS: We examined interactions among family members regarding husbands' smoking in homes with small children in Shanghai. METHODS: In Spring 2013, we conducted in-person semi-structured interviews among 13 male smokers and 17 female nonsmokers recruited from an urban and a suburban community in Shanghai...
December 2016: Journal of Smoking Cessation
https://www.readbyqxmd.com/read/28232795/acetaldehyde-motivation-and-stress-behavioral-evidence-of-an-addictive-m%C3%A3-nage-%C3%A3-trois
#16
REVIEW
Anna Brancato, Gianluca Lavanco, Angela Cavallaro, Fulvio Plescia, Carla Cannizzaro
Acetaldehyde (ACD) contributes to alcohol's psychoactive effects through its own rewarding properties. Recent studies shed light on the behavioral correlates of ACD administration and the possible interactions with key neurotransmitters for motivation, reward and stress-related response, such as dopamine and endocannabinoids. This mini review article critically examines ACD psychoactive properties, focusing on behavioral investigations able to unveil ACD motivational effects and their pharmacological modulation in vivo...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28232371/c-myc-dysregulation-is-a-co-transforming-event-for-nf-%C3%AE%C2%BAb-activated-b-cells
#17
Amandine David, Nicolas Arnaud, Magali Fradet, Hélène Lascaux, Catherine Ouk-Martin, Nathalie Gachard, Ursula Zimber-Strobl, Jean Feuillard, Nathalie Faumont
While c-Myc dysregulation is constantly associated with highly proliferating B-cell tumors, NF-κB addiction is found in indolent lymphomas as well as diffuse large B-cell lymphomas either with an activated B-cell like phenotype or associated with Epstein-Barr virus. We raised the question of the effect of c-Myc in B-cells with NF-κB activated by three different inducers: Epstein-Barr Virus-latency III program, TLR-9 and CD40. Induction of c-Myc overexpression increased proliferation of Epstein-Barr Virus-latency III immortalized B-cells, an effect that was dependent on NF-κB...
February 23, 2017: Haematologica
https://www.readbyqxmd.com/read/28231802/a-precision-medicine-approach-to-a-patient-with-unresolved-pain-following-orthopedic-surgery-a-case-report
#18
David Gazzaniga, Ashley Brenton, Brian Meshkin
BACKGROUND: Precision medicine is a promising technology in patient care that combines genetic analysis with clinical data, such as health, behavioral, functional, environment, and lifestyle information. Here we present the case of a 54-year old woman who, following an accident, had uncontrolled chronic pain and was subsequently labeled a drug seeker. CASE PRESENTATION: A 54-year-old white woman who was experiencing severe calf pain was referred for treatment. Her pain was insufficiently controlled immediately following knee arthroplasty with multiple opioid medications, as well as non-opioids...
February 24, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28231635/in-vivo-structural-imaging-in-rats-reveals-neuroanatomical-correlates-of-behavioral-sub-dimensions-of-cocaine-addiction
#19
Nazzareno Cannella, Alejandro Cosa-Linan, Elena Büchler, Claudia Falfan-Melgoza, Wolfgang Weber-Fahr, Rainer Spanagel
Cocaine addiction is a multi-dimensional behavioral disorder characterized by a loss of control over cocaine taking despite of detrimental consequences. Structural MRI studies have revealed association between cocaine consumption and gray matter volume (GMV) in cocaine-addicted patients. However, the behavioral correlates of GMV in cocaine addiction are poorly understood. Here, we used a DSM-IV-based rat model of cocaine addiction with high face validity for structural imaging. According to three behavioral sub-dimensions of addiction, rats were separated into two groups showing either addict-like or non-addict-like behavior...
February 23, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28231610/polygenic-risk-scores-for-schizophrenia-and-bipolar-disorder-associate-with-addiction
#20
Gunnar W Reginsson, Andres Ingason, Jack Euesden, Gyda Bjornsdottir, Sigurgeir Olafsson, Engilbert Sigurdsson, Hogni Oskarsson, Thorarinn Tyrfingsson, Valgerdur Runarsdottir, Ingunn Hansdottir, Stacy Steinberg, Hreinn Stefansson, Daniel F Gudbjartsson, Thorgeir E Thorgeirsson, Kari Stefansson
We use polygenic risk scores (PRSs) for schizophrenia (SCZ) and bipolar disorder (BPD) to predict smoking, and addiction to nicotine, alcohol or drugs in individuals not diagnosed with psychotic disorders. Using PRSs for 144 609 subjects, including 10 036 individuals admitted for in-patient addiction treatment and 35 754 smokers, we find that diagnoses of various substance use disorders and smoking associate strongly with PRSs for SCZ (P = 5.3 × 10(-50) -1.4 × 10(-6) ) and BPD (P = 1.7 × 10(-9) -1...
February 23, 2017: Addiction Biology
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