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Resting Brain Studies Shed New Light on Vulnerabilities

Individuals with weak signaling in a nicotine-sensitive brain circuit were more vulnerable to nicotine dependence than those with stronger signaling, according to a study conducted while the subjects’ brains were in a resting state. A second resting-state study finds that the same circuit appears to mediate dependence associated with a genetic risk factor for smoking.

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El tabaco

Descripción breve

Debido al consumo de cigarrillos y otros productos de tabaco, la nicotina es una de las drogas adictivas de mayor uso y la principal causa prevenible de enfermedades, discapacidad y muerte en los Estados Unidos. El hábito de fumar es responsable del 90% de los casos de cáncer de pulmón en este país y casi 50,000 muertes al año se pueden atribuir a la inhalación pasiva del humo. En la mayoría de los estados, los cigarrillos y el tabaco de mascar son sustancias ilegales para las personas menores de 18 años.

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NIH study examines nicotine as a gateway drug

A landmark study in mice identifies a biological mechanism that could help explain how tobacco products could act as gateway drugs, increasing a person’s future likelihood of abusing cocaine and perhaps other drugs as well, according to the National Institute on Drug Abuse (NIDA), part of the Nat

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Drugs: Shatter the Myths

Answers teens’ most frequently asked questions about drugs and abuse with scientific facts and engaging images.

Published: October 2010
Revised: April 2011
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Learn more at NIDA's National Drug Facts Week site »

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Adicción al tabaco

Proporciona información sobre cómo la nicotina afecta al corazón, alterando la frecuencia cardiaca y la presión arterial. También habla sobre la dependencia, el tratamiento y los efectos a largo plazo debido al uso de la nicotina.

Published: January 2006
Author:


Lea esta publicación en el sitio web del NIDA para adolescentes »

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Tobacco Addiction

Describes how nicotine acts on the heart to change heart rate and blood pressure, and discusses dependency, treatment, and effects of long-term nicotine use.

Published: January 1998
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Read this publication online at the NIDA for Teens Web site »

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FDA and NIH announce joint study on tobacco use and risk perceptions

The U.S. Food and Drug Administration and the National Institutes of Health today announced a joint, large-scale, national study of tobacco users to monitor and assess the behavioral and health impacts of new government tobacco regulations.

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NIDA Avant-Garde-Medications Development Award winners announced

Scientists proposing to develop vaccines against methamphetamine and nicotine have been selected to receive NIDA's second Avant-Garde Awards for Innovative Medication Development Research. The two scientists, Dr. Thomas Kosten, of Baylor College of Medicine, Houston, and Dr.

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Potential new target for smoking cessation without weight gain

A new study uncovers a brain mechanism that could be targeted for new medications designed to help people quit smoking without gaining weight.

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Ethnicity Influences Early Smoking and Progression to Drug Abuse

Summarizes findings from a 10-year study that monitored smoking and progress to other drugs among youth that found ethnicity to be an influential factor.

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