3) To investigate whether the uptake of SpHtp1 can be caused by

3). To investigate whether the uptake of SpHtp1 can be caused by physical disruption of the membranes by Saprolegnia, a His-tagged SpHtp1 fusion protein without the putative signal peptide, SpHtp124-198-His, was synthesized in E. coli, purified and characterized (Fig. S6). Treatment with the final bleed SpHtp1 antibody in combination with the secondary antibody Fluor 488 showed no fluorescence in or on RTG-2 cells.

When the RTG-2 cells were treated with SpHtp124-198-His, no fluorescence was detected when the preimmune antiserum was used in combination PD-0332991 order with the secondary antibody Fluor 488, also showing that the treatment of SpHtp1-His did not affect the fish cells (Fig. 4). However, SpHtp124-198-His and final bleed SpHtp1 antibody-treated RTG-2

cells showed SpHtp124-198-His localization on the surface of the fish cells and also inside the fish cells, surrounding the nucleus (Fig. I-BET-762 solubility dmso 4). Furthermore, when the fish cells were incubated with SpHtp124-198-His and only labelled with the primary or the secondary antibody, no fluorescence was observed inside or outside the cells. Identical results were observed when an anti-His antibody was used for the immunolocalization studies (Fig. S7). Setting up a model infection system without having to sacrifice animals has many obvious advantages as it helps to fulfil the ultimate goal of the three Rs, whereby the aim is to reduce, refine and replace animals in experimental research. Here, we have shown that the trout RTG-2 cell line represents an excellent in vitro system for studying the very early interactions between

fish cells and S. parasitica, and that it can also be used to study the molecular mechanism of infection. Analysis of ESTs from zoospores and germinated cysts resulted in the identification of a putative RxLR effector protein, demonstrating that these types of proteins are possibly not only present in plant pathogenic oomycetes but also in animal pathogenic Oxymatrine oomycetes. SpHtp1 is expressed in the preinfection and the very early infection stages of S. parasitica, as are many RxLR effector genes from P. sojae and P. infestans (Whisson et al., 2007; Dong et al., 2009). Analysis of the protein sequence revealed that SpHtp1 lacks the ‘so-called’ EER motif, which is found closely behind the RxLR motif in about 500 putative P. infestans RxLR effector proteins (Whisson et al., 2007) (Fig. 1a and b). The EER motif in the PiAvr3a and PsAvr1b proteins seems to be required for effector translocation of P. infestans and P. sojae, respectively (Whisson et al., 2007; Dou et al., 2008a). However, another intracellularly recognized RxLR effector protein, Atr13 of Hyaloperonospora arabidopsidis, lacks the EER motif (Allen et al., 2004), suggesting that the presence of an EER motif is not always essential for the translocation of every RxLR effector into host cells, or for inducing a hypersensitive response.

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On the other hand, trauma in older children, canal obliteration,

On the other hand, trauma in older children, canal obliteration, or external resorption show less probability of PN. “
“International Journal of Paediatric Dentistry 2010; 20: 83–101 Background.  The relationship between parental and child dental fear has been studied for over a century. During this time, the concept of dental fear as well as methodological approaches to studying dental fear in children have evolved considerably. Aim.  To provide an overview of the published empirical evidence on the link between parental

and child GSI-IX supplier dental fear. Design.  A structured literature review and meta-analysis. Results.  Forty-three experimental studies from across the six continents were included in the review. The studies ranged widely with respect to research design, methods used, age of children included,

and the reported link between parental and child dental fear. The majority of studies confirmed a relationship between parental and child dental fear. This relationship is most evident in children aged 8 and under. A meta-analysis of the available data also confirmed an association between parental and child dental fear. Conclusion.  The narrative synthesis as well as the meta-analysis demonstrate this website a significant relationship between parental and child dental fear, particularly in children 8 years and younger. “
“Aims.  First, to compare the relative effectiveness of inhalation sedation using (A) nitrous oxide and oxygen with (B) nitrous oxide, sevoflurane, and oxygen in the management of children receiving dental extractions. Secondly, to determine patient and guardian preference between the two sedation techniques. Materials and methods.  A randomized, controlled, double-blinded, cross-over, pilot clinical

trial was undertaken. Thirty patients aged 6–15 years, ASA category I or II, who required two identical dental extractions with inhalation sedation were recruited. At the first session, patients were randomly allocated to receiving treatment with sedation Method A or B. At the second session, the alternative sedation protocol was employed. Results.  Overall, 80% of patients successfully TCL completed treatment at both appointments. There was no statistically significant difference between either the success rate of the two methods or in guardian preference between the two modes of sedation. There was a statistically significant difference in patient preference in favour of Method B. Conclusions.  The results from this pilot study would suggest no increased benefit, in terms of treatment completion, from the additional use of sevoflurane in combination with nitrous oxide and oxygen. There was, however, a small but significant patient preference in favour of nitrous oxide with sevoflurane and oxygen. “
“International Journal of Paediatric Dentistry 2010; 20: 214–221 Objective.

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Two groups were used to evaluate the impact of dichlorvos on the

Two groups were used to evaluate the impact of dichlorvos on the indigenous bacterial community in the rape phyllosphere (experiment 1), and the other two groups were used to evaluate the availability of phyllosphere microorganisms for dichlorvos degradation on rape leaves (experiment 2). Before the plants were sprayed with RGFP966 solubility dmso dichlorvos, 50 g of rape leaf tissue was collected from each group and

used as the day 0 sample. In experiment 1, one group was sprayed with 1 : 1000 water-diluted emulsifiable concentrated dichlorvos (80% w/v), which is the recommended dose for rape. The other group was sprayed with the same dose of the auxiliary solvent that had been added into the dichlorvos, as the control. To sample the leaves, 50 g of fully expanded young leaves was collected from the control

and treated samples on days 1, 2, 4, 6 and 7 after treatment, placed on ice and brought back to MK-1775 manufacturer the laboratory. Three replicates of each sample were included. Samples for DNA extraction, subsequent PCR–denaturing gradient gel electrophoresis (PCR–DGGE) and the construction of a 16S rRNA gene clone library were stored frozen at −20 °C until use. In experiment 2, one group of samples was surface sterilized with 1% sodium hypochlorite for 1 min and three times with sterile water for at least 1 min; these were designated the sterilized samples. The other was used as the control (unsterilized samples). These two groups were then sprayed with dichlorvos, as described above. Immediately after spraying, the leaf samples were collected to determine

the initial dichlorvos concentration. A sample (50 g) of rape leaf material was collected from each control and treated sample on days 1, 2 and 7 after spraying. All control and sterilized leaves were sent to the Beijing Center for Physical and Chemical Analysis for analysis of the dichlorvos residues. Part (10 g) of each leaf sample from experiment 1 was transferred aseptically into an Erlenmeyer flask containing washing buffer (0.1 M sodium phosphate buffer, pH 7.5) and sonicated for L-gulonolactone oxidase 7 min in an ultrasonic cleaning bath (40 kHz) to dislodge the bacteria from the leaves. The leaf debris was removed by low-speed centrifugation, as described by Zhang et al. (2008). The wash solution was centrifuged at 10 000 g for 15 min at 4 °C. The supernatant was discarded and the pellet was used for analysis of the cellular dichlorvos-degrading ability, the isolation of dichlorvos-degrading bacteria and DNA extraction. The microorganisms eluted from the day 0 samples were used to clarify how much the phyllosphere microorganisms devoted to dichlorvos degradation. Dichlorvos was added to mineral salt medium (MSM; Shelton & Somich, 1988) to a final concentration of 400 mg L−1 as the sole carbon source, and incubated at 30 °C on a shaker at 200 r.p.m. in the dark for 48 h. The cultures were analysed in triplicate to ensure accuracy. Uninoculated medium containing dichlorvos (400 mg L−1) was used as the control.

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g anti-cancer and other types of chemotherapy with bone marrow s

g. anti-cancer and other types of chemotherapy with bone marrow suppressive potential) may experience a temporary drop in CD4 cell count. If such a confirmatory CD4 cell count measurement is performed, both measurements should be below the threshold for the patient to fulfil the definition. The consensus definitions of persons presenting late for HIV care and presenting with advanced HIV diseases given in this paper will hopefully end the long-standing debate and the subsequent confusion regarding what is actually meant by a ‘late presenter’. Such

a central concept in public health is best served when a common definition exists. A similar definition has recently been proposed by a group of UK investigators [23], and hence this report this website confirms that a consensus has been reached – in a parallel process – also on a European level. Europe-wide consensus on this issue is critical in formulating a continent-wide response to this public health crisis. Current guidance on the use of ART is of utmost importance in our consensus definition of a late presenter. Until 2007, ART was recommended to be deferred in asymptomatic persons until their CD4 count reached 200 cells/μL [24], but the guidelines then changed selleck chemicals when multiple studies demonstrated that persons living with HIV and with a current CD4 count in the range of 200–350 cells/μL

remained at significant risk of contracting opportunistic diseases [25, 26]. The findings from the SMART trial strongly supported this policy of initiating therapy in people with CD4 count <350 cells/μL. Therefore, initiation of ART when the CD4 count nears 350 cells/μL would reduce the incidence of such events. Serious non-AIDS events are observed at a higher incidence than AIDS events in persons living with CD4 counts >350 cells/μL,

particularly among those with an elevated underlying risk of such events [18, 27]. The December 2009 Department Meloxicam of Health and Human Services Antiretroviral (ARV) Guidelines for Adults and Adolescents recommend starting ARV therapy for patients with a CD4 count <500 cells/μL [28]. This controversial recommendation has not received general support across Europe at the present time. However, while our proposed threshold value of 350 cells/μL corresponds to the level at which ART is currently recommended in Europe, our proposed definition will not automatically change if future European guidelines change. Even if there is shown to be a relative benefit of starting ART at higher levels than at a CD4 count of 350 cells/μL (a point currently disputed), it is not evident that the definition of late presentation should change. This is because of the low risk of disease progression in people with CD4 counts >350 cells/μL and the fact that the time from infection to, for example, a CD4 count <500 cells/μL is relatively short, diluting the concept of ‘late presentation’ as a public health issue.

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, 1983) Modulation of the light emission spectrum is often obser

, 1983). Modulation of the light emission spectrum is often observed among luminous organisms, such as Aequorea victoria (Shimomura et al., 1962), and has been observed in three species of luminous bacteria (Photobacterium phosphoreum, Photobacterium leiognathi, and Aliivibrio sifiae strain Y1 [formerly known as Vibrio fischeri strain Y1]). The mechanism of this phenomenon was initially characterized in P. phosphoreum strain A-13 (Gast PD0325901 purchase & Lee, 1978). The maximal emission wavelength (λmax ≈ 476 nm) of this

strain is blue-shifted in comparison with that of purified luciferase (λmax ≈ 490 nm). Gast & Lee (1978) showed that this blue shift was caused by the involvement of an accessory blue fluorescent protein, of which the fluorescent spectrum was identical to the in vivo light emission spectrum. This protein was also found in P. leiognathi (O’Kane et al., 1985) and is now called lumazine protein (LumP). LumP has 6,7-dimethyl-8-(1′-d-ribityl) lumazine as its chromophore (Koka & Lee, 1979). In

another case, an accessory yellow fluorescent protein (YFP) was discovered PF-02341066 datasheet in the yellow-light-emitting V. fischeri strain Y1 (Daubner et al., 1987), which has been recently reclassified as A. sifiae (Ast et al., 2009; Yoshizawa et al., 2010b). YFP modulates the light emission wavelength of bacterial luciferase to yellow (λmax ≈ 540 nm). These proteins are involved

in the luciferase reaction, and it is generally accepted that the peak emission wavelengths of the light emission spectra are shifted to shorter or longer wavelengths that correspond to the spectra of these fluorescent proteins (Gast & Lee, 1978; Small et al., 1980; Karatani et al., 1992). There are, however, no reports of an accessory fluorescent protein in bacteria of the genus Inositol oxygenase Vibrio. The aim of this study was to explore luminous bacteria with modulated light emission in the genus Vibrio and to see whether these bacterial strains carry an accessory fluorescent protein. We performed detailed analyses of the light emission spectra and the luxA gene sequences in 16 strains of four luminous Vibrio species (Vibrio harveyi, Vibrio campbellii, Vibrio azureus, and Vibrio jasicida). Multilocus sequence analysis (MLSA) was used for bacterial identification. Furthermore, the protein involved in the shift was purified and subjected to spectral base characterization in vitro. As a result, we obtained a new fluorescent protein responsible for the blue-shifted light emission of V. azureus. We used 16 luminous strains of genus Vibrio (Table 1). Bacterial strains newly reported in this study were isolated from seawater samples from Sagami Bay (35°00′N, 139°20′E), the Pacific equatorial zone, and Aburatsubo Inlet (35°09′N, 139°36′E).

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The frequency of transient desaturations emphasises the importanc

The frequency of transient desaturations emphasises the importance of adequate monitoring during sedation. The study highlights the need for more consistent reporting of adverse effects.

The authors declare no conflict of Selleck EGFR inhibitor interest. “
“International Journal of Paediatric Dentistry 2012; 22: 406–418 Background.  As a result of numerous rapid and exciting developments in tissue engineering technology, scientists are able to regenerate a fully functional tooth in animal models, from a bioengineered tooth germ. Advances in technology, together with our understanding of the mechanisms of tooth development and studies dealing with dentally derived stem cells, have led to significant progress in the field of tooth regeneration. Aim and design.  This review focuses on some of the recent advances in tooth bioengineering technology, the signalling pathways in tooth development, and in dental stem cell biology. These factors are highlighted in respect of selleck products our current knowledge of tooth regeneration. Results and conclusion.  An understanding of these new approaches in tooth regeneration should help to prepare clinicians to use this new and somewhat revolutionary therapy while also enabling them to partake in future clinical trials. Tooth bioengineering promises to be at the forefront of the next generation of dental treatments.


“Oral health literacy is a newly emerging field with considerable research potential. To validate an original instrument, the Hong Kong Oral Health Resminostat Literacy Assessment Task (HKOHLAT-P) for paediatric dentistry. A convenient

sample of 200 child/parent dyads attending a dental hospital in Hong Kong was selected. Convergent validity was tested by examining the association of HKOHLAT-P scores with those derived from the Test of Functional Health Literacy in Dentistry (TOFHLiD) and Hong Kong Rapid Estimate of Adult Literacy in Dentistry (HKREALD-30). The predictive validity of HKOHLAT-P was determined by testing the association between HKOHLAT-P and children’s caries experience (dmft) and the Chinese Early Childhood Oral Health Impact Scale (ECOHIS). The test-retest reliability and internal consistency of HKOHLAT-P were also evaluated. HKOHLAT-P was positively correlated with TOFHLiD and HKREALD-30 (P < 0.01), and was negatively correlated with children's dmft and ECOHIS. In the regression model, HKOHLAT-P was associated with TOFHLiD, HKEALD-30, children's dmft, and ECOHIS (P < 0.05) after controlling for participants' demographic characteristics. The intra-class correlation coefficient of HKOHLAT-P was 0.63 and the Cronbach's α was 0.71. Initial testing of HKOHLAT-P suggested that it is a valid and reliable instrument. "
“International Journal of Paediatric Dentistry 2012; 22: 310–316 Background.  Generalized aggressive periodontitis (GAP) in primary teeth is a rare periodontal disease that occurs during or soon after eruption of the primary teeth. An association with systemic diseases is a possibility. Case Report.

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We recorded the responses of superficial dorsal horn neurons in m

We recorded the responses of superficial dorsal horn neurons in mice to intradermal injection of the pruritogens chloroquine and histamine. Scratching within an area 5–17 mm distant from the injection site, outside of the units’ mechanoreceptive fields (off-site), Inhibitor Library significantly inhibited chloroquine-evoked and histamine-evoked responses without affecting capsaicin-evoked firing. This is consistent with observations that scratching at a distance from a site of itch is antipruritic. In contrast, scratching directly at the injection site (within the receptive field; on-site) had no effect on chloroquine-evoked neuronal firing, but enhanced the same neurons’

responses to intradermal injection of the algogen capsaicin. Moreover, neuronal responses to histamine were enhanced during on-site scratching, and this was followed by suppression of firing below baseline levels after termination of scratching. Scratching thus inhibits pruritogen-responsive neurons in a manner that

depends on the input modality (i.e. pain vs. histamine-dependent or histamine-independent itch) and 5-Fluoracil skin location. “
“Involvement of fronto-parietal structures within the right hemisphere in bodily self recognition has gained convergent support from behavioural, neuropsychological and neuroimaging studies. Increases in corticospinal excitability via transcranial magnetic stimulation (TMS) also testify to right hemisphere self-related processing. However, evidence for self-dependent modulations of motor excitability is limited to the processing of face-related information that,

by definition, conveys someone’s identity. Here we tested the hypothesis that vision of one’s own hand, as compared with vision of somebody else’s hand, would also engage specific self-hand processing in the right hemisphere. Healthy participants were submitted to a classic TMS paradigm to assess changes in corticospinal excitability of the right (Experiment 1) and left (Experiment 2) motor cortex, while viewing pictures of a (contralateral) still hand, which could either be their own (Self) or not (Other). As a control for body selectivity, subjects were also presented with pictures of a hand-related, but non-corporeal object, i.e. a mobile phone, which could similarly be their own or not. Results showed a selective Metalloexopeptidase right hemisphere increase in corticospinal excitability with self-hand and self-phone stimuli with respect to Other stimuli. Such a Self vs. Other modulation of primary motor cortex appeared at 600 ms and was maintained at 900 ms, but was not present at earlier timings (100 and 300 ms) and was completely absent following stimulation of the left hemisphere. A similar pattern observed for self-hand and self-phone stimuli suggests that owned hands and objects may undergo similar self-processing, possibly via a different cortical network from that responsible for self-face processing.

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LINGO-1 antagonists, combined with brain-derived neurotrophic fac

LINGO-1 antagonists, combined with brain-derived neurotrophic factor (BDNF), can increase the length of neuron survival through an unclear molecular mechanism. To determine the relationship between LINGO-1 and BDNF/TrkB receptor in neuronal protection,

we show here that LINGO-1 forms a receptor complex with TrkB and negatively regulates its activation in the retina after ocular hypertension injury. LINGO-1 antagonist antibody 1A7 or soluble buy GDC-0449 LINGO-1 (LINGO-1-Fc) treatment upregulates phospho-TrkB phosphorylation and leads to RGC survival after high intraocular pressure injury. This neuronal protective effect was blocked by anti-BDNF antibody. LINGO-1 antagonism therefore promotes RGC survival by regulating the BDNF and TrkB signaling pathway after ocular hypertension. “
“Aroma Therapeutics, Meyreuil, France Selleck Fulvestrant To better understand the neurobiology of methamphetamine (METH) dependence and the cognitive impairments induced by METH use, we compared the effects of extended (12 h) and limited (1 h)

access to METH self-administration on locomotor activity and object place recognition, and on extracellular dopamine levels in the nucleus accumbens and caudate-putamen. Rats were trained to self-administer intravenous METH (0.05 mg/kg). One group had progressively extended access up to 12-h sessions. The other group had limited-access 1-h sessions.

Microdialysis experiments were conducted during a 12-h and Bumetanide 1-h session, in which the effects of a single METH injection (self-administered, 0.05 mg/kg, i.v.) on extracellular dopamine levels were assessed in the nucleus accumbens and caudate-putamen compared with a drug-naive group. The day after the last 12-h session and the following day experimental groups were assessed for their locomotor activities and in a place recognition procedure, respectively. The microdialysis results revealed tolerance to the METH-induced increases in extracellular dopamine only in the nucleus accumbens, but not in the caudate-putamen in the extended-access group compared with the control and limited-access groups. These effects may be associated with the increased lever-pressing and drug-seeking observed during the first hour of drug exposure in the extended-access group.

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The in vitro antifungal activity of ophiobolins was determined in

The in vitro antifungal activity of ophiobolins was determined in a 96-well microtiter plate bioassay by measuring the

absorbance of the fungal cultures at 620 nm. The wells contained SPEC medium supplemented with ophiobolin A or B and inoculated with the appropriate sporangiospore suspension (105 spores mL–1). The drug concentrations applied were 100, 50, 25, 12.5, 6.25, 3.175 and 1.5875 μg mL–1, respectively. The plates were incubated for 72 h at 24 or 37 °C depending on the culturing requirements of the strains. Absorbances were measured using an ASYS Jupiter HD microplate reader (ASYS Hitech) every 24 h. Each test plate contained a sterile control (containing medium alone), a growth control (containing inoculated medium without the drugs) and a drug-free control (containing inoculated medium and methanol in the appropriate dilution without the ophiobolins). The uninoculated medium was used as the background Selleckchem Palbociclib for the calibration of the spectrophotometry. Absorbance of the untreated control cultures was referred to 100% of growth in each case. To decide whether the antifungal effect was fungistatic or fungicidic, 10 μL of each suspension in the microdilution plates was dropped onto YEG plates. After incubation for 24 h, the plates were checked visually. If colony formation was observed, the antifungal effect was considered to be fungistatic; otherwise, it was

fungicidic. Each experiment was repeated three times. For morphological examinations, the Mucor circinelloides strain ATCC 1216b was cultured http://www.selleckchem.com/products/apo866-fk866.html on a solid and in a liquid YEG medium containing different concentrations of the drug (1.6, 3.2, 6.25 or 12.5 μg mL–1) at 24 °C. If the fungus was cultured on

a solid medium, microscopy was performed after incubation for 24 h. In the case of the liquid cultures, ophiobolin A was added to the fungus either at the time of spore inoculation (0 h) or 4 h postinoculation, and cells were examined microscopically 5 h after the addition of the inhibitor (5 or 9 h postinoculation, respectively). Treated cells were stained CHIR-99021 mw using the annexin V-fluorescein isothiocyanate (FITC) Apoptosis Detection Kit (Sigma) according to the manufacturer’s instructions. For nuclear staining, cells were resuspended in 1 mL of 0.1 μg mL–1 4′-6-diamidino-2-phenylindole (DAPI) staining solution and were allowed to stain for 30 min at room temperature. Stained spores were collected, washed twice with distilled water (dw), and resuspended in 50 μL dw. Microscopic examinations were performed with a Zeiss Jenalumar fluorescence microscope using an excitation filter U 205 g, a barrier filter G-244 and a 510 nm dichroic splitter. The susceptibility to ophiobolins A and B of 17 fungal isolates representing six different genera (Micromucor, Mortierella, Mucor, Rhizomucor, Rhizopus and Gilbertella) was tested and their MIC values were determined (Table 1).

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“Health-related

quality of life (HRQL) is used in


“Health-related

quality of life (HRQL) is used in the assessment of chronic illness. Regarding HIV infection, HRQL assessment is an objective for physicians and institutions since antiretroviral treatment delays HIV clinical progression. The aim of this study was to determine the factors with the most influence on HRQL in HIV-infected people and to create a predictive model. We conducted a cross-sectional study in 150 patients in a tertiary hospital. HRQL data were collected using the Medical Outcomes Study HIV Health Survey (MOS-HIV) questionnaire. The research team created a specific template with which to gather clinical and sociodemographic data. Adherence was assessed using the Simplified Medication Adherence Questionnaire (SMAQ) and depression data were obtained using the Beck Depression Inventory, Second learn more Edition (BDI-II) selleck chemicals inventory. Logistic regression models were used to identify determinants of HRQL. HIV-related symptoms and presence of depression were found to be negatively associated with all the MOS-HIV domains, the Physical Health summary score and the Mental Health summary score. Patients receiving protease inhibitor (PI)-based treatment had lower scores in four of the 11 domains of the MOS-HIV questionnaire.

Gender, hospitalization in the year before enrolment, depression and parenthood were independently related to the Physical Health Score; depression and hepatitis C virus coinfection were

related to the Mental Health Score. Optimization of HRQL is particularly important now that HIV infection can be considered a chronic disease with the prospect of long-term survival. Quality of life should be monitored in follow-up of HIV-infected patients. The assessment of HRQL in this population can Rucaparib in vitro help us to detect problems that may influence the progression of the disease. This investigation highlights the importance of a multidisciplinary approach to HIV infection. The biopsychological effects of HIV infection have an important impact not only on patients’ lives but also on their family and communities and on overall public health. The first report of a case of AIDS was published in 1981 [1], and since then more than 60 million people world-wide have been infected with HIV, which remains a cause of premature death in developing countries [2]. Since the introduction of antiretroviral therapy (ART) in 1996, the survival rate of HIV-infected patients has increased markedly, and HIV infection is now regarded as a chronic disease [3]. Therefore, the concerns of HIV-infected patients regarding treatment now centre not only on the increased longevity it provides, but also on its impact on their quality of life. Quality of life is a multidimensional concept that includes factors such as physical and social functioning, mental health, pain and energy [4–6].

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