Addiction & Substance Use

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Anyone who is close to someone who abuses alcohol or drugs knows all too well that substance abusers do not typically seek treatment until they have experienced years of substance-related problems. During the first year after onset of a diagnosable substance use disorder, only 1 of 5 alcohol-dependent persons and 1 of 4 drug-dependent persons receive treatment.

Parkinson gait is characterized by shuffling, including a decreased stride length and gait speed. The diminished stride and gait speed coupled with increased cadence puts the patient at risk for postural instability resulting in falls.

Delirium is characterized by an altered level of consciousness, decreased attention span, acute onset, and fluctuating course. About 15% of elderly patients admitted to the hospital have delirium as a presenting or associated symptom. Delirium will develop in another 15% of elderly patients during hospitalization.

Typical smokers need to have brain nicotine receptors almost completely saturated throughout the day. This need creates an almost uncontrollable urge to keep smoking, commented Nora D. Volkow, MD, director of the National Institute on Drug Abuse (NIDA), addressing a study by NIDA researchers on nicotine addiction.

Hundreds of uniquely adapted venomous marine cone snail species inhabit the coral reefs of the Indian and Pacific oceans. Researchers posit that each may be a virtual neurologic pharmacopoeia with potential value for the treatment of everything from diabetic neuropathy to schizophrenia. The venoms, known as conotoxins, selectively inhibit a wide range of ion channels involved in neuromuscular signaling.

The editors of Pediatric Neuropsychiatry must have drawn on their experiences and the feedback they received on their first book, Textbook of Pediatric Neuropsychiatry (American Psychiatric Press, 1998), for this text.

Effective treatment of drug abuse and addiction in the criminal justice system saves the community money and reduces crime, the NIH's National Institute on Drug Abuse (NIDA) reported in a recently released booklet, Principles of Drug Abuse Treatment for Criminal Justice Populations.

Typically, delirium worsens at night ("sundowning"), with lucid intervals often present in the morning. It is important to realize that delirium may appear before any abnormal laboratory values are detected and may persist after the resolution of these abnormalities.

The degree to which season changes affect mood, energy, sleep, appetite, food preference, or desire to socialize with others has been called "seasonality." Identification of a seasonal pattern can only be made if both the patient and physician actively look for it.

Most physicians make at least some use of the placebo effect to enhance treatments, whether they realize it or not. This article examines the extent of the placebo effect in patients with psychiatric illness, and reviews what is known about how placebos work.

Depressive disorders and symptoms are common in cancer patients (up to 58% have depressive symptoms and up to 38% have major depression), worsen over the course of cancer treatment, persist long after cancer therapy, recur with the recurrence of cancer, and significantly impact quality of life.

Complaints of persistent memory loss in otherwise well-functioning individuals after recovery from a psychiatric illness through electroconvulsive therapy (ECT) are best viewed as a conversion reaction or a somatoform disorder. The Camelford experience is a model for the complaints of ECT's profound personal memory losses.

Ampakines, agents that have been shown to enhance memory, appear to trigger endogenous brain-derived neurotrophic factor (BDNF), a natural mechanism in the brain that could restore neuronal viability and synaptic plasticity through increased trophic support.