Abbreviations and Acronyms
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Insights Into the Molecular Basis for Substrate Binding and Specificity of the Wild-Type L-Arginine/Agmatine Antiporter Adic
Insights into the molecular basis for substrate binding and specificity of the wild-type L-arginine/agmatine antiporter AdiC Hüseyin Ilgüa,b,1, Jean-Marc Jeckelmanna,b,1, Vytautas Gapsysc, Zöhre Ucuruma,b, Bert L. de Grootc, and Dimitrios Fotiadisa,b,2 aInstitute of Biochemistry and Molecular Medicine, University of Bern, CH-3012 Bern, Switzerland; bSwiss National Centre of Competence in Research TransCure, University of Bern, CH-3012 Bern, Switzerland; and cComputational Biomolecular Dynamics Group, Max-Planck-Institute for Biophysical Chemistry, D-37077 Goettingen, Germany Edited by Christopher Miller, Howard Hughes Medical Institute, Brandeis University, Waltham, MA, and approved July 26, 2016 (received for review April 4, 2016) Pathogenic enterobacteria need to survive the extreme acidity of Arg-bound states (10). The two outward-open, substrate-free the stomach to successfully colonize the human gut. Enteric bacteria structures are at the reasonable and moderate resolutions of 3.2 Å circumvent the gastric acid barrier by activating extreme acid- (8) and 3.6 Å (9), respectively, and the only ones available of wild- resistance responses, such as the arginine-dependent acid resistance type AdiC (AdiC-wt). The two other structures are with bound system. In this response, L-arginine is decarboxylated to agmatine, Arg and at 3-Å resolution, and could only be obtained as a result thereby consuming one proton from the cytoplasm. In Escherichia of the introduction of specific point mutations: AdiC-N22A (10) coli,theL-arginine/agmatine antiporter AdiC facilitates the export and AdiC-N101A (11). The N101A mutation results in a defective of agmatine in exchange of L-arginine, thus providing substrates for AdiC protein unable to bind Arg and with a dramatically de- further removal of protons from the cytoplasm and balancing the creased turnover rate compared with wild-type (11). -
Separation of Isomers <Emphasis Type="Italic">L </Emphasis>-Alanine and Sarcosine in Urine by Electrospra
SHORT COMMUNICATION Separation of Isomers L-Alanine and Sarcosine in Urine by Electrospray Ionization and Tandem Differential Mobility Analysis-Mass Spectrometry Pablo Martínez-Lozanoa and Juan Rusb a Institute for Biomedical Technologies-National Research Council, Milan, Italy b SEADM, Valladolid, Spain Sarcosine, an isomer of L-alanine, has been proposed as a prostate cancer progression biomarker [1]. Both compounds are detected in urine, where the measured sarcosine/alanine ratio has been found to be higher in prostate biopsy-positive group versus controls. We present here preliminary evidence showing that urine samples spiked with sarcosine/alanine can be partially resolved in 3 min via tandem differential mobility analysis-mass spectrometry (DMA-MS). Based on the calibration curves obtained for two mobility peaks, we finally estimate their concentration ratio in urine. (J Am Soc Mass Spectrom 2010, 21, 1129–1132) © 2010 American Society for Mass Spectrometry rostate cancer is a leading cause of death among the tive-ion mode at the DMA entrance slit. Our nanospray male population. Sarcosine, an isomer of alanine, parameters were: capillary 360 m o.d., 50 m i.d., length Pwas recently proposed as a prostate cancer progres- 22 cm, driving pressure 75 mbar, and 3.8 kV. The ions sion biomarker [1]. In particular, the sarcosine/alanine entered the separation region propelled by an electric field ratio was found to be significantly higher in urine derived and against a counterflow gas (0.2 L/min). Sheath gas from biopsy-positive prostate cancer patients compared flow was kept constant, and the classification voltage was with biopsy-negative controls. -
Substance Abuse and Dependence
9 Substance Abuse and Dependence CHAPTER CHAPTER OUTLINE CLASSIFICATION OF SUBSTANCE-RELATED THEORETICAL PERSPECTIVES 310–316 Residential Approaches DISORDERS 291–296 Biological Perspectives Psychodynamic Approaches Substance Abuse and Dependence Learning Perspectives Behavioral Approaches Addiction and Other Forms of Compulsive Cognitive Perspectives Relapse-Prevention Training Behavior Psychodynamic Perspectives SUMMING UP 325–326 Racial and Ethnic Differences in Substance Sociocultural Perspectives Use Disorders TREATMENT OF SUBSTANCE ABUSE Pathways to Drug Dependence AND DEPENDENCE 316–325 DRUGS OF ABUSE 296–310 Biological Approaches Depressants Culturally Sensitive Treatment Stimulants of Alcoholism Hallucinogens Nonprofessional Support Groups TRUTH or FICTION T❑ F❑ Heroin accounts for more deaths “Nothing and Nobody Comes Before than any other drug. (p. 291) T❑ F❑ You cannot be psychologically My Coke” dependent on a drug without also being She had just caught me with cocaine again after I had managed to convince her that physically dependent on it. (p. 295) I hadn’t used in over a month. Of course I had been tooting (snorting) almost every T❑ F❑ More teenagers and young adults die day, but I had managed to cover my tracks a little better than usual. So she said to from alcohol-related motor vehicle accidents me that I was going to have to make a choice—either cocaine or her. Before she than from any other cause. (p. 297) finished the sentence, I knew what was coming, so I told her to think carefully about what she was going to say. It was clear to me that there wasn’t a choice. I love my T❑ F❑ It is safe to let someone who has wife, but I’m not going to choose anything over cocaine. -
GABA Systems, Benzodiazepines, and Substance Dependence
Robert J. Malcolm GABA Systems, Benzodiazepines, and Substance Dependence Robert J. Malcolm, M.D. Alterations in the γ-aminobutyric acid (GABA) receptor complex and GABA neurotransmission influence the reinforcing and intoxicating effects of alcohol and benzodiazepines. Chronic modulation of the GABAA-benzodiazepine receptor complex plays a major role in central nervous system dysregulation during alcohol abstinence. Withdrawal symptoms stem in part from a decreased GABAergic inhibitory function and an increase in glutamatergic excitatory function. GABAA recep- tors play a role in both reward and withdrawal phenomena from alcohol and sedative-hypnotics. Although less well understood, GABAB receptor complexes appear to play a role in inhibition of moti- vation and diminish relapse potential to reinforcing drugs. Evidence suggests that long-term alcohol use and concomitant serial withdrawals permanently alter GABAergic function, down-regulate ben- zodiazepine binding sites, and in preclinical models lead to cell death. Benzodiazepines have substan- tial drawbacks in the treatment of substance use–related disorders that include interactions with alco- hol, rebound effects, alcohol priming, and the risk of supplanting alcohol dependency with addiction to both alcohol and benzodiazepines. Polysubstance-dependent individuals frequently self-medicate with benzodiazepines. Selective GABA agents with novel mechanisms of action have anxiolytic, anticonvulsant, and reward inhibition profiles that have potential in treating substance use and with- drawal and enhancing relapse prevention with less liability than benzodiazepines. The GABAB receptor agonist baclofen has promise in relapse prevention in a number of substance dependence dis- orders. The GABAA and GABAB pump reuptake inhibitor tiagabine has potential for managing alcohol and sedative-hypnotic withdrawal and also possibly a role in relapse prevention. -
Beta Alanine
PERFORMANCE ENHANCERS FACTS AND BOTTOM LINE BETA ALANINE What is it? B-alanine is a naturally occurring amino acid (a non-essential amino acid) not used by the body to make muscle tissue. Rather, research has shown that B-alanine works by increasing the muscle content of an important compound – carnosine. In fact, the production of carnosine is limited by the availability of B-alanine. Carnosine is highly concentrated in muscle tissue where its role is primarily to soak up hydrogen ions. Does it work? B-alanine is one of the few dietary supplements that actually have good scientific evidence that it can possibly enhance performance. How does it work? When you exercise intensely the body produces hydrogen ions. The longer you exercise the more hydrogen ions you produce and this reduces the pH level in your muscles. Muscles work best in a very specific pH range and when the pH drops below that level then muscular performance also starts to decrease. Anything that helps to prevent or delay that drop in pH will help delay muscle fatigue. This is where B-alanine has proven to be very helpful. Beta-alanine increases the levels of carnosine in your slow and fast twitch muscle fibers and carnosine is a buffer that basically soaks up hydrogen ions and so reduces the drop in pH. By keeping your hydrogen ion levels lower, B-alanine allows you to train harder and longer. The bottom line is that B-alanine works by increasing the hydrogen ion buffering abilities of your muscles. What benefits does it offer? B-alanine has been shown to increase muscle strength, increase muscle mass, increase anaerobic endurance, increase aerobic endurance and increase exercise capacity. -
Barriers and Solutions to Addressing Tobacco Dependence in Addiction Treatment Programs
Barriers and Solutions to Addressing Tobacco Dependence in Addiction Treatment Programs Douglas M. Ziedonis, M.D., M.P.H.; Joseph Guydish, Ph.D., M.P.H.; Jill Williams, M.D.; Marc Steinberg, Ph.D.; and Jonathan Foulds, Ph.D. Despite the high prevalence of tobacco use among people with substance use disorders, tobacco dependence is often overlooked in addiction treatment programs. Several studies and a meta-analytic review have concluded that patients who receive tobacco dependence treatment during addiction treatment have better overall substance abuse treatment outcomes compared with those who do not. Barriers that contribute to the lack of attention given to this important problem include staff attitudes about and use of tobacco, lack of adequate staff training to address tobacco use, unfounded fears among treatment staff and administration regarding tobacco policies, and limited tobacco dependence treatment resources. Specific clinical-, program-, and system-level changes are recommended to fully address the problem of tobacco use among alcohol and other drug abuse patients. KEY WORDS: Alcohol and tobacco; alcohol, tobacco, and other drug (ATOD) use, abuse, dependence; addiction care; tobacco dependence; smoking; secondhand smoke; nicotine; nicotine replacement; tobacco dependence screening; tobacco dependence treatment; treatment facility-based prevention; co-treatment; treatment issues; treatment barriers; treatment provider characteristics; treatment staff; staff training; AODD counselor; client counselor interaction; smoking cessation; Tobacco Dependence Program at the University of Medicine and Dentistry of New Jersey obacco dependence is one of to the other. The common genetic vul stance use was considered a potential the most common substance use nerability may be located on chromo trigger for the primary addiction. -
Alcohol Effects on People; 00 Social Responsibility for the Control of the Use of Beverage; and (5) the Social Responsibility for the Treatment of Individuals
DOC- NT RESUME ED 140 180 CG 011 461 TITLE Alcohol Education: Curriculum Guide for Grades 7-12. INSTITUTION New York State Education Dept., Albany. Bureau of Drug Education. PUB DATE 76 NOTE 144p.; For relat d document, see CG 011 462 EERS PRICE MF-$0.83 BC-$7.35 Plus Postage. DESCRIPTORS *Alcohol Education; *Alcoholic Beverages; Class Activities; Curriculum Guides; *Drinking; Drug Education; Health Education; *Learning Activities; Recreational Activities; *Secondary Education; Socially Deviant Behavior; Teaching Guides AB TRACT This curriculum guide is designed as an interdisciplinary resource on alcohol education for teachers of Grades 7-12. tevelopmental traits are discussed, and objectives and learning experiences are presented. The following topics are covered: ro the nature of alcohci;(2) factors influencing the use of alcoholic beverages; (3) alcohol effects on people; 00 social responsibility for the control of the use of beverage; and (5) the social responsibility for the treatment of individuals. A division is made between Grades 7-9 and 10-12, with each set of three grades considered separately. (Author/OLL)' Documents acquired by ERIC include many informal unpublished materials not available from other sources. ERIC makes every effort * * to obtain the best copy available. Nevertheless, items of marginal * * reproducibility are often encountered and this affects the quality * * of the microfiche and hardcopy reproductions ERIC makes available * via the ERIC Document Reproduction Service (EDRS). EDRS is not * responsible for -
Poly(L-Alanine) As a Universal Reference Material for Understanding Protein Energies and Structures TERESA HEAD-GORDON, FRANK H
Proc. Nati. Acad. Sci. USA Vol. 89, pp. 11513-11517, December 1992 Biophysics Poly(L-alanine) as a universal reference material for understanding protein energies and structures TERESA HEAD-GORDON, FRANK H. STILLINGER, MARGARET H. WRIGHT, AND DAVID M. GAY AT&T Bell Laboratories, Murray Hill, NJ 07974 Contributed by Frank H. Stillinger, June 17, 1992 ABSTRACT We present a proposition, the "poly(L- alanine) hypothesis," which asserts that the native backbone geometry for any polypeptide or protein of M residues has a closely mimicking, mechanically stable, image in poly(L- POLY-L-ALANINE alanine) of the same number of residues. Using a molecular co mechanics force field to represent the relevant potential energy a: hypersurfaces, we have carried out calculations over a wide z range of M values to show that poly(L-alanine) possesses the w structural versatility necessary to satisfy the proposition. These w include poly(L-alanine) representatives of minima correspond- U- ing to secondary and supersecondary structures, as well as PROTEIN poly(L-alanine) images for tertiary structures of the naturally occurring proteins bovine pancreatic trypsin inhibitor, crambin, ribonuclease A, and superoxide dismutase. The suc- cessful validation of the hypothesis presented in this paper BACKBONE COORDINATES indicates that poly(L-alanine) will serve as a good reference FIG. 1. Topographic basis ofthe poly(L-alanine) hypothesis. Free material in thermodynamic perturbation theory and calcula- energy hypersurfaces are compared for a given protein and for tions aimed at evaluating relative free energies for competing poly(L-alanine) with the same number of residues. candidate tertiary structures in real polypeptides and proteins. -
Alcohol Use Disorder
Section: A B C D E Resources References Alcohol Use Disorder (AUD) Tool This tool is designed to support primary care providers (family physicians and primary care nurse practitioners) in screening, diagnosing and implementing pharmacotherapy treatments for adult patients (>18 years) with Alcohol Use Disorder (AUD). Primary care providers should routinely offer medication for moderate and severe AUD. Pharmacotherapy alone to treat AUD is better than no therapy at all.1 Pharmacotherapy is most effective when combined with non-pharmacotherapy, including behavioural therapy, community reinforcement, motivational enhancement, counselling and/or support groups. 2,3 TABLE OF CONTENTS pg. 1 Section A: Screening for AUD pg. 7 Section D: Non-Pharmacotherapy Options pg. 4 Section B: Diagnosing AUD pg. 8 Section E: Alcohol Withdrawal pg. 5 Section C: Pharmacotherapy Options pg. 9 Resources SECTION A: Screening for AUD All patients should be screened routinely (e.g. annually or when indicators are observed) with a recommended tool like the AUDIT. 2,3 It is important to screen all patients and not just patients eliciting an index of suspicion for AUD, since most persons with AUD are not recognized. 4 Consider screening for AUD when any of the following indicators are observed: • After a recent motor vehicle accident • High blood pressure • Liver disease • Frequent work avoidance (off work slips) • Cardiac arrhythmia • Chronic pain • Rosacea • Insomnia • Social problems • Rhinophyma • Exacerbation of sleep apnea • Legal problems Special Patient Populations A few studies have reviewed AUD in specific patient populations, including youth, older adults and pregnant or breastfeeding patients. The AUDIT screening tool considered these populations in determining the sensitivity of the tool. -
Staying Connected Is Important: Virtual Recovery Resources
STAYING CONNECTED IS IMPORTANT: VIRTUAL RECOVERY RESOURCES • Refuge Recovery: Provides online and virtual INTRODUCTION support In an infectious disease outbreak, when social https://www.refugerecovery.org/home distancing and self-quarantine are needed to • Self-Management and Recovery Training limit and control the spread of the disease, (SMART) Recovery: Offers global community continued social connectedness to maintain of mutual-support groups, forums including a recovery is critically important. Virtual chat room and message board resources can and should be used during this https://www.smartrecovery.org/community/ time. Even after a pandemic, virtual support may still exist and still be necessary. • SoberCity: Offers an online support and recovery community This tip sheet describes resources that can be https://www.soberocity.com/ used to virtually support recovery from mental/ substance use disorders as well as other • Sobergrid: Offers an online platform to help resources. anyone get sober and stay sober https://www.sobergrid.com/ • Soberistas: Provides a women-only VIRTUAL RECOVERY PROGRAMS international online recovery community https://soberistas.com/ • Alcoholics Anonymous: Offers online support • Sober Recovery: Provides an online forum for https://aa-intergroup.org/ those in recovery and their friends and family https://www.soberrecovery.com/forums/ • Cocaine Anonymous: Offers online support and services • We Connect Recovery: Provides daily online https://www.ca-online.org/ recovery groups for those with substance use and -
Amino Acid Chemistry
Handout 4 Amino Acid and Protein Chemistry ANSC 619 PHYSIOLOGICAL CHEMISTRY OF LIVESTOCK SPECIES Amino Acid Chemistry I. Chemistry of amino acids A. General amino acid structure + HN3- 1. All amino acids are carboxylic acids, i.e., they have a –COOH group at the #1 carbon. 2. All amino acids contain an amino group at the #2 carbon (may amino acids have a second amino group). 3. All amino acids are zwitterions – they contain both positive and negative charges at physiological pH. II. Essential and nonessential amino acids A. Nonessential amino acids: can make the carbon skeleton 1. From glycolysis. 2. From the TCA cycle. B. Nonessential if it can be made from an essential amino acid. 1. Amino acid "sparing". 2. May still be essential under some conditions. C. Essential amino acids 1. Branched chain amino acids (isoleucine, leucine and valine) 2. Lysine 3. Methionine 4. Phenyalanine 5. Threonine 6. Tryptophan 1 Handout 4 Amino Acid and Protein Chemistry D. Essential during rapid growth or for optimal health 1. Arginine 2. Histidine E. Nonessential amino acids 1. Alanine (from pyruvate) 2. Aspartate, asparagine (from oxaloacetate) 3. Cysteine (from serine and methionine) 4. Glutamate, glutamine (from α-ketoglutarate) 5. Glycine (from serine) 6. Proline (from glutamate) 7. Serine (from 3-phosphoglycerate) 8. Tyrosine (from phenylalanine) E. Nonessential and not required for protein synthesis 1. Hydroxyproline (made postranslationally from proline) 2. Hydroxylysine (made postranslationally from lysine) III. Acidic, basic, polar, and hydrophobic amino acids A. Acidic amino acids: amino acids that can donate a hydrogen ion (proton) and thereby decrease pH in an aqueous solution 1. -
ALCOHOLICS ANONYMOUS 1 Renewed Relevance of Alcoholics Anonymous and Adlerian Psychology
Running head: ALCOHOLICS ANONYMOUS 1 Renewed Relevance of Alcoholics Anonymous and Adlerian Psychology ____________________ Presented to The Faculty of the Adler Graduate School ____________________ In Partial Fulfillment of the Requirement for the Degree of Master of Arts in Adlerian Counseling and Psychotherapy ____________________ By Megan Teale ____________________ Chair: Rashida Fisher MS, LPCC, LADC Reader: Jamie Hedin MA, LPC, LADC ____________________ July 2017 ALCOHOLICS ANONYMOUS 2 Abstract The incorporation of psychological approaches to the Alcoholics Anonymous (AA) is established as a sound way of improving the treatment of alcoholism. Despite mounting evidence of the clinical effectiveness of AA, and its enduring legacy as the prominent approach for healing alcoholism; there remains skepticism regarding its use as a clinical intervention. The literature on the Adlerian orientation has noted the similarity between the two methods, little investigation of the congruence between the two and the implications for an integrated treatment approach has occurred. The purpose of this literature review is to examine how Adlerian theory and positive psychology complement the philosophies and practices of AA. The results support the integration of Adlerian Psychology and AA as ideal for working with clients struggling with alcohol dependence. Furthermore, this literature review suggests that the integration of Adlerian Psychology will enhance and complement the therapeutic dynamics inherent in the AA program, improving the competence of clinicians to treat individuals living the alcoholism and participating in the 12- step programs. Keywords: Adlerian Psychology, Alcoholics Anonymous, Alcoholism, Spirituality ALCOHOLICS ANONYMOUS 3 Dedication To my husband, Eric Teale, for allowing me to turn my dreams into a reality. Thank you for supporting me through my graduate school experience.