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https://www.readbyqxmd.com/read/28534828/how-ketamine-affects-livers-of-pregnant-mice-and-developing-mice
#1
Hoi Man Cheung, Tony Chin Hung Chow, David Tai Wai Yew
It is well known that ketamine abuse can induce liver damage in adult addicts, but the effects of ketamine abuse in pregnant mothers on their offspring have received less attention. In this study, we investigated the effects of 5-day ketamine injections (30 mg/kg) to pregnant Institute for Cancer Research (ICR) mice during early gestation or mid-gestation on the aspartate aminotransferase (AST) and alkaline phosphatase (ALP) activities of the mothers and the offspring. We also looked into whether administering ketamine treatment to the mothers had any effects on the extent of fibrosis, cell proliferation and cell death in the livers of the newborns...
May 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28479397/locomotor-sensitization-to-intermittent-ketamine-administration-is-associated-with-nucleus-accumbens-plasticity-in-male-and-female-rats
#2
C E Strong, K J Schoepfer, A M Dossat, S K Saland, K N Wright, M Kabbaj
Clinical evidence suggests superior antidepressant response over time with a repeated, intermittent ketamine treatment regimen as compared to a single infusion. However, the club drug ketamine is commonly abused. Therefore, the abuse potential of repeated ketamine injections at low doses needs to be investigated. In this study, we investigated the abuse potential of repeated exposure to either 0, 2.5, or 5 mg/kg ketamine administered once weekly for seven weeks. Locomotor activity and conditioned place preference (CPP) were assayed to evaluate behavioral sensitization to the locomotor activating effects of ketamine and its rewarding properties, respectively...
May 4, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28442368/differences-between-adolescents-and-adults-in-the-acute-effects-of-pcp-and-ketamine-and-in-sensitization-following-intermittent-administration
#3
Angelica Rocha, Nigel Hart, Keith A Trujillo
Adolescence is a phase of development during which many physiological and behavioral changes occur, including increased novelty seeking and risk taking. In humans, this is reflected in experimentation with drugs. Research demonstrates that drug use that begins during adolescence is more likely to lead to addiction than drug use that begins later in life. Despite this, relatively little is known of the effects of drugs in adolescence, and differences in response between adolescents and adults. PCP and ketamine are popular club drugs, both possessing rewarding properties that could lead to escalating use...
April 22, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28421529/suppression-of-methamphetamine-self-administration-by-ketamine-pre-treatment-is-absent-in-the-methylazoxymethanol-mam-rat-model-of-schizophrenia
#4
Jana Ruda-Kucerova, Zuzana Babinska, Tibor Stark, Vincenzo Micale
Ketamine may prove to be a potential candidate in treating the widespread drug addiction/substance abuse epidemic among patients with schizophrenia. Clinical studies have shown ketamine to reduce cocaine and heroin cravings. However, the use of ketamine remains controversial as it may exacerbate the symptoms of schizophrenia. Therefore, the aim of this study is to characterize the effects of ketamine on drug addiction in schizophrenia using the methylazoxymethanol (MAM) acetate rat model on operant IV methamphetamine (METH) self-administration...
April 18, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28376226/urinary-concentrations-of-topically-administered-pain-medications
#5
Michele A Glinn, Andrew J Lickteig, Luke Weber, Sherri Recer, Matthew Salske, Audrey Harvey, Brian Rappold, Julie Stensland, Patrick Bell
A common treatment for chronic pain is prescription of analgesics, but their long-term use entails risk of morbidity, addiction and misuse. One way to reduce the risk of abuse is prescribing of analgesics in a topical form. Physicians are urged to perform urine drug testing to ensure that patients are compliant with their medication regimens. However, there is little data on the efficiency of transdermal delivery for many analgesic drugs, and no data on expected urine drug levels. This study includes data from over 29,000 specimens tested for gabapentin, ketamine, cyclobenzaprine or amitriptyline used orally or topically...
March 1, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28257514/analysis-of-print-news-media-framing-of-ketamine-treatment-in-the-united-states-and-canada-from-2000-to-2015
#6
Melvyn W B Zhang, Ying X Hong, Syeda F Husain, Keith M Harris, Roger C M Ho
OBJECTIVES: There are multifaceted views on the use of ketamine, a potentially addictive substance, to treat mental health problems. The past 15 years have seen growing media coverage of ketamine for medical and other purposes. This study examined the print news media coverage of medical and other uses of ketamine in North America to determine orientations and trends over time. METHODS: Print newspaper coverage of ketamine from 2000 to 2015 was reviewed, resulting in 43 print news articles from 28 North American newspapers...
2017: PloS One
https://www.readbyqxmd.com/read/28251524/pain-management-of-patients-with-substance-abuse-in-the-ambulatory-setting
#7
REVIEW
Nalini Vadivelu, Alice M Kai, Vijay Kodumudi, Richard Zhu, Roberta Hines
PURPOSE OF REVIEW: Abuse of illicit substances and prescription opioids is a growing problem that presents challenges for pain management in the inpatient and outpatient setting. With future patient care models shifting toward shorter hospital stays and more same-day surgeries, it is crucial that clinicians learn to manage this patient population and strike a balance between the overtreatment of pain that can subsequently worsen tolerance and addiction, and the undertreatment of pain that can lead to pseudoaddiction...
February 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28251011/-being-with-a-buddha-a-case-report-of-methoxetamine-use-in-a-united-states-veteran-with-ptsd
#8
Joan M Striebel, Emily E Nelson, Raj K Kalapatapu
Methoxetamine (MXE) is a ketamine analogue with a high affinity for the N-methyl-D-aspartate (NMDA) receptor. MXE is a newly emerging designer drug of abuse and is widely available through on-line sources and is not detected by routine urine drug screens. In this report, we describe a United States (US) veteran with posttraumatic stress disorder (PTSD) and heavy polysubstance use, who injected high dose MXE for its calming effect. Given MXE's structural similarities to ketamine and recent work showing that ketamine reduces PTSD symptoms, we hypothesize that MXE alleviated this veteran's PTSD symptoms through action at the NMDA receptor and via influences on brain-derived neurotrophic factor (BDNF)...
2017: Case Reports in Psychiatry
https://www.readbyqxmd.com/read/28246760/-side-effects-of-pain-therapy-sufficient-analgesia-without-unnecessary-complications
#9
F Greul, A Zimmer, W Meißner
Interventions of acute and chronic pain treatment are associated with risks. Therefore, it is important to know about treatment side effects in order to avoid unnecessary complications and therapy interruption. This knowledge, however, is not to prevent/abandon this treatment altogether. Rather, it is intended to use pain treatment interventions rationally. The following article is to deepen the knowledge of unintended effects of analgetic treatments. Moreover, it will help find an optimal pain therapy in terms of efficacy and tolerable risks as well as limitations...
April 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28243163/drug-abuse-and-psychosis-new-insights-into-drug-induced-psychosis
#10
REVIEW
Suji Ham, Tae Kyoo Kim, Sooyoung Chung, Heh-In Im
Addictive drug use or prescribed medicine abuse can cause psychosis. Some representative symptoms frequently elicited by patients with psychosis are hallucination, anhedonia, and disrupted executive functions. These psychoses are categorized into three classifications of symptoms: positive, negative, and cognitive. The symptoms of DIP are not different from the symptoms of schizophrenia, and it is difficult to distinguish between them. Due to this ambiguity of distinction between the DIP and schizophrenia, the DIP animal model has been frequently used as the schizophrenia animal model...
February 2017: Experimental Neurobiology
https://www.readbyqxmd.com/read/27979642/severe-carisoprodol-withdrawal-after-a-14-year-addiction-and-acute-overdose
#11
Kathy T Vo, Howard Horng, Craig G Smollin, Neal L Benowitz
BACKGROUND: Carisoprodol, a centrally acting muscle relaxant with a high abuse potential, has barbiturate-like properties at the GABA-A receptor, leading to central nervous system depression and desired effects. Its tolerance and dependence has been previously demonstrated in an animal model, and withdrawal has been described in several recent case reports. Many cases can be effectively managed with a short course of benzodiazepines or antipsychotic agents. However, abrupt cessation in a patient with a history of long-term and high-dose carisoprodol abuse may result in symptoms that are more difficult for providers to treat...
May 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27934938/changes-in-hippocampal-ampa-receptors-and-cognitive-impairments-in-chronic-ketamine-addiction-models-another-understanding-of-ketamine-cns-toxicity
#12
Runtao Ding, Yanning Li, Ao Du, Hao Yu, Bolin He, Ruipeng Shen, Jichuan Zhou, Lu Li, Wen Cui, Guohua Zhang, Yan Lu, Xu Wu
Ketamine has been reported to impair human cognitive function as a recreational drug of abuse. However, chronic effects of ketamine on central nervous system need to be further explored. We set out to establish chronic ketamine addiction models by giving mice a three or six month course of daily intraperitoneal injections of ketamine, then examined whether long-term ketamine administration induced cognition deficits and changed hippocampal post-synaptic protein expression in adult mice. Behavior tests results showed that mice exhibited dose- and time-dependent learning and memory deficits after long-term ketamine administration...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27888525/breaking-sad-unleashing-the-breakthrough-potential-of-ketamine-s-rapid-antidepressant-effects
#13
David Feifel
Preclinical Research The surprising results of a small clinical trial on the effects of low dose ketamine, a 65-year old anesthetic drug that is also used off-label for chronic pain and recreationally as a club drug, in eight depressed subjects unleashed the most significant advance in antidepressant drug development in decades. That study and subsequent ones have demonstrated that low dose, infused ketamine is able to induce a remission of depression in patients who have failed conventional medications, within 24 h...
December 2016: Drug Development Research
https://www.readbyqxmd.com/read/27842789/ketamine-a-cause-of-urinary-tract-dysfunction
#14
REVIEW
Frank Anthony Myers, Martin H Bluth, Wellman W Cheung
Drug addiction as a result of improper use of prescribed and illicit use has been on the increase globally. The effects of such use have implications in the urologic disease space. To this end, Ketamine has been reported to affect urologic function, causing a number of voiding symptoms. It may also confound the differential diagnosis of urologic diseases, such as interstitial cystitis, among others.
December 2016: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/27836553/how-much-alcohol-is-in-ketamine-s-antidepressant-action
#15
REVIEW
Udo Bonnet
Ketamine is approved to start and maintain anaesthesia or analgesia. Ketamine is also known to be neurotoxic and an old drug of abuse. Numerous studies have proven a rapid and strong antidepressant response (AR) following parenteral sub-anaesthetic ketamine doses when applied the first time to patients with treatment resistant unipolar or bipolar major depression. This rapid and robust AR is encouraging, though short-lived (usually up to seven days). There is growing evidence that repeated und escalating ketamine administrations exert longer-lasting AR than single infusions...
January 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/27832755/experience-of-the-use-of-ketamine-to-manage-opioid-withdrawal-in-an-addicted-woman-a-case-report
#16
Laurence Lalanne, Chloe Nicot, Jean-Philippe Lang, Gilles Bertschy, Eric Salvat
BACKGROUND: Opioids are good painkillers, but many patients treated with opioids as painkillers developed a secondary addiction. These patients need to stop misusing opioids, but the mild-to-severe clinical symptoms associated with opioid withdrawal risk increasing their existing pain. In such cases, ketamine, which is used by anaesthetists and pain physicians to reduce opioid medication, may be an effective agent for managing opioid withdrawal. CASE PRESENTATION: We describe the case of a woman who developed a severe secondary addiction to opioids in the context of lombo-sciatic pain...
November 10, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27713001/levo-tetrahydropalmatine-inhibits-the-acquisition-of-ketamine-induced-conditioned-place-preference-by-regulating-the-expression-of-erk-and-creb-phosphorylation-in-rats
#17
Yan Du, Li Du, Jie Cao, Christian Hölscher, Yongming Feng, Hongliang Su, Yujin Wang, Ke-Ming Yun
Levo-tetrahydropalmatine (l-THP) is an alkaloid purified from the Chinese herbs Corydalis and Stephania and has been used in many traditional Chinese herbal preparations for its sedative, analgesic and hypnotic properties. Previous studies demonstrated that l-THP has antagonistic activity on dopamine receptors; thus, it may have potential therapeutic effects on drug abuse. However, whether l-THP affects ketamine-induced conditioned place preference (CPP) remains unclear. Therefore, the present study was designed to evaluate the effects of l-THP on the rewarding behavior of ketamine through CPP...
October 3, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27649773/subanesthetic-ketamine-decreases-the-incentive-motivational-value-of-reward-related-cues
#18
Christopher J Fitzpatrick, Jonathan D Morrow
The attribution of incentive-motivational value to reward-related cues contributes to cue-induced craving and relapse in addicted patients. Recently, it was demonstrated that subanesthetic ketamine increases motivation to quit and decreases cue-induced craving in cocaine-dependent individuals. Although the underlying mechanism of this effect is currently unknown, one possibility is that subanesthetic ketamine decreases the incentive-motivational value of reward-related cues. In the present study, we used a Pavlovian conditioned approach procedure to identify sign-trackers, rats that attribute incentive-motivational value to reward-related cues, and goal-trackers, rats that assign only predictive value to reward-related cues...
January 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27376671/the-similarities-and-differences-in-impulsivity-and-cognitive-ability-among-ketamine-methadone-and-non-drug-users
#19
Hong Zeng, Dequan Su, Xing Jiang, Liang Zhu, Haosheng Ye
The study aimed to identify similarities and differences among ketamine, methadone users, and non-drug-using controls, on impulsivity, antisocial personality, and related cognitive abilities. A case-control observational design was used to compare the impulsivity and cognitive function of ketamine users (n = 51), methadone users (n=59), and controls (n=60). Antisocial personality traits and emotion states were also measured. One-way ANOVAs and planned post hoc pair-wise tests were used to analyze the data. Compared to non-drug-using controls, ketamine and methadone users had elevated scores on BIS and Pd scale of the MMPI, poorer performance on 2-back task, Stop-signal task, and Stroop test...
September 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27341080/the-abuse-liability-of-the-nmda-receptor-antagonist-benzodiazepine-tiletamine-zolazepam-combination-evidence-from-clinical-case-reports-and-preclinical-studies
#20
REVIEW
June Bryan de la Peña, Jae Hoon Cheong
The tiletamine-zolazepam (TZ) combination is an anaesthetic drug commonly used in veterinary medicine. It is an equal amount combination of tiletamine, a dissociative anaesthetic pharmacologically classified as an N-methyl-D-aspartate (NMDA) receptor antagonist, and zolazepam, a benzodiazepine tranquilizer. There are concerns regarding the safety profile of this drug combination due to incidents of human misuse/abuse. In this paper, we discuss the abuse liability of this drug combination based on currently available scientific evidence...
August 2016: Drug Testing and Analysis
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