"Legal highs" on the net-Evaluation of UK-based Websites, products and product information.

Background: A vast array of substances are marketed as "legal highs" in the UK. These products are mainly marketed online and are packaged and produced to mimic illicit drugs. Little is known about the full range of products available at present and no studies have evaluated the product information provided to consumers.

Psycho-education programme for temporomandibular disorders: a pilot study.

Background: Temporomandibular disorders (TMDs) are by far the most predominant condition affecting the temporomandibular joint (TMJ), however many patients have mild self-limiting symptoms and should not be referred for specialist care. The aim of this pilot study was to develop a simple, cost-effective management programme for TMDs using CD-ROM. 41 patients (age 18-70) participated in this study, patients were divided into three groups: the 1st group were involved in an attention placebo CD-ROM (contain anatomical information about the temporomandibular system), the 2nd group received information on CD-ROM designed to increase their control and self efficacy, while the 3rd group received the same programme of the 2nd group added to it an introduction to self-relaxing techniques followed by audio tape of progressive muscle relaxation exercises.

A psychological comparison of temporomandibular disorder and chronic daily headache: are there targets for therapeutic interventions?

Objective: Temporomandibular disorder (TMD) and chronic daily headache (CDH) are chronic problems affecting the head and face. The aim of this study was to compare TMD and CDH, in terms of cognitive factors, including illness perceptions and coping strategies.

Study Design: A total of 102 patients, 18 to 70 years of age, classified into 2 groups, TMD or CDH, were recruited in this study from a variety of centres in London.

Pain symptoms in depression: definition and clinical significance.

This article presents the findings of a focused literature review and consensus meetings on the definition and clinical significance of painful symptoms in patients with depression. About 50% of depressed patients report pain, and many types of pain occur more frequently in people with depression than in those without. There is some evidence that pain in depressed patients is associated with a poor response to treatment.

Psychiatric and psychological management considerations associated with nerve damage and neuropathic trigeminal pain.

This article reviews current models of neuropathic pain and relates recent research in the neurobiology of pain to improved understanding of psychiatric and psychological aspects and treatment of chronic aspects of pain. Some of the anomalies associated with beliefs about chronic pain are also outlined. In particular, the notion that pain is either verifiable or due to psychiatric disturbance is laid to rest; the onus is on the clinician to understand and treat the patient with sensitivity, rather than on the patient to provide proof of pain.

Children in pain: an investigation of selective memory for pain and psychological adjustment.

This study investigated the effects of chronic pain on processing and recall of pain-related and neutral information in a group of children suffering from chronic pain due to juvenile arthritis, and a control group. Children were asked to encode pain-sensory, pain-affective and neutral words in a self and another person reference condition. Percentage recall and processing time for each wordtype were used as dependent measures.

Tyramine conjugation deficit in patients with chronic idiopathic temporomandibular joint and orofacial pain.

This study was carried out to explore the value of the tyramine conjugation test, an established trait marker for 'endogenous unipolar depression', in patients with chronic idiopathic temporomandibular joint and orofacial pain. Our results show that the pain patients excrete significantly lower amounts of tyramine sulphate than controls (P < 0.0004).

Reduction of postoperative pain and swelling by ultrasound treatment: a placebo effect.

Ultrasound (US) therapy is used to reduce pain and inflammation and to accelerate healing after soft tissue injury. However, there is little objective evidence of its effectiveness and the mechanisms which may cause these effects are unknown. In a placebo-controlled double-blind clinical trial we examined the contribution of placebo and massage effects in ultrasound therapy following bilateral surgical extraction of lower third molars.

Pain relief by antidepressants: possible modes of action.

There is evidence that both tricyclic antidepressants and monoamine oxidase inhibitors can relieve chronic pain. There are a number of possible mechanisms for this phenomenon, recent studies suggest that this may be due to an analgesic rather than antidepressant effect.