Cognitive deficits in HTLV-1 patients

Human T-cell lymphotropic virus type 1 (HTLV-1) is a retrovirus known to be associated with adult T-cell lymphoma and HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Previous researches and brain imaging techniques have suggested cognitive abnormalities as well as brain damage in individuals infected with this virus. Given the insufficient amount of studies on how this virus can impact the affected person's cognition, we aimed to assess and compare the cognitive abnormalities of HAM/TSP patients, asymptomatic HTLV-1 carriers, and healthy controls. This cross-sectional study was conducted on 51 patients divided into 3 groups; a group of HAM/TSP patients, a group of asymptomatic HTLV-1 carriers, and an uninfected control group. Each group contained 17 members. The cognitive state of the studied population was assessed using the Mini-Mental State Exam (MMSE), Symbol Digit Modalities Test (SDMT), Rey-Osterrieth complex figure test (ROCF), the "Verbal Fluency Test" and the "Trail Making Test" (TMT) components of the Delis-Kaplan executive function system (D-KEFS) test, the Rey Auditory Verbal Learning Test (RAVLT), and digit span memory test. Patients diagnosed with HAM/TSP received significantly lower scores on the SDMT, ROCF, TMT, RAVLT, digit span memory test, and the orientation, calculation, and recall component of the MMSE assessment (p-value < 0.001). In addition, the asymptomatic HTLV-1 carriers obtained lower scores on the SDMT, ROCF, digit span memory test, and the orientation, calculation, and recall component of the MMSE assessment compared to the control group (p-value < 0.001). Overall, the findings suggest that HAM/TSP, or an asymptomatic infection with HTLV-1 could lead to cognitive deficits in the affected individuals. This can further emphasize the importance of assessing the cognitive function and psychiatric abnormalities of those infected with this virus.

Prevalence of sexual dysfunction in HTLV-1 patients without spastic paraparesis and the association with psychiatric symptoms

Introduction

The findings of previous studies are inconclusive in terms of psychological abnormalities and sexual function in asymptomatic human lymphotropic virus type 1 (HTLV-1) carriers.

Aim

This study aimed to evaluate the prevalence of sexual dysfunction and its relationship with psychological abnormalities in asymptomatic HTLV-1 carriers.

Materials and Methods

This cross-sectional study was conducted on asymptomatic HTLV-1 patients who were referred to the Neurology Clinic of a tertiary hospital in Mashhad, Iran. Patients with spastic paraparesis, leukemia, and uveitis, and those with an expanded disability status scale (EDSS) score higher than 2 were excluded. Sexual function in male and female subjects was evaluated using the brief male sexual function inventory (BMSFI) and female sexual dysfunction index (FSFI) questionnaires, respectively. The severity of psychological symptoms was evaluated in all patients using the symptom checklist-90-revised (SCL-90-R) questionnaire.

Results

A total of 117 patients (61 males and 56 females) with a mean age of 35.3 ± 6.3 years were evaluated. Overall, 50.9% of males had a high and 39.3% of females had a good sexual function. Both male and female patients with poor sexual function were older and had more children compared to those with good sexual function (P < 0.05). There was no significant difference in the distribution pattern of SCL-90 domains between patients with high and low to moderate sexual function among male patients (P > 0.05). Depression, hostility, interpersonal sensitivity, paranoid ideation, and psychological abnormality were significantly more prevalent in female patients with poor sexual function compared to those with good sexual function (P < 0.05).

Conclusion

The prevalence of psychological abnormalities was high in female with sexual dysfunction and these disorders might have a negative effect on various dimensions of sexual function.

Investigating the Effects and Side Effects of Two Antipsychotic Drugs in the Treatment of Children and Adolescents with Tourette Syndrome: A Semi-experimental Research

INTRODUCTION

Due to the high prevalence of Tourette's disorder among children and adolescents and its negative consequences, an appropriate and effective medical treatment with minimal complications is necessary. Therefore, this study was conducted to compare the effects of Aripiprazole and Risperidone on Tourette's disorders in children and adolescents.

METHODS

The statistical population of this semi-experimental study was children and adolescents aged seven to eighteen years old. They were diagnosed with Tourette's disorder based on the DSM-V criteria by the clinical interview of a child and adolescent psychiatrist in the child Psychiatry clinic of Ibne- Sina's Psychiatric Hospital (Mashhad-Iran) in 2018. A total of forty participants were selected by the convenience sampling method, and they were randomly divided into two groups treated with medicines, Risperidone or Aripiprazole, for two months. Then, the demographic information questionnaire was completed. The Y-GTSS Scale was completed. The clinical Effect Rating Scale (CGI-Tics Scale) was completed. Calculation of body mass index and medical side effects complications were completed. The evaluation was carried out at the beginning and on the second, fourth, and eighth weeks, and the results were compared. The data were analyzed using SPSS software. 14, descriptive statistics, Chi-square, and variance analysis.

RESULTS

The two groups were homogeneous in terms of demographic variables and body mass index. Despite the positive effect of both medicines, no significant difference was observed among the general scores of such disorders, the overall score of severity, Tourette's recovery, and BMI of these two groups at the intervals and the end of treatments. (p <0.05). Due to the low number of complications reported, statistical comparisons of the medical side effects were not made.

CONCLUSION

According to the results, the two medicines, Aripiprazole and Risperidone, effectively improved the symptoms of Tourette's disorder and its overall severity. However, there were no significant statistical differences between them. Furthermore, in terms of the medical side effects, the statistical comparison between the two medicines was impossible due to the small number of complications.

Imaging stress and magnetism at high pressures using a nanoscale quantum sensor

Pressure alters the physical, chemical, and electronic properties of matter. The diamond anvil cell enables tabletop experiments to investigate a diverse landscape of high-pressure phenomena. Here, we introduce and use a nanoscale sensing platform that integrates nitrogen-vacancy (NV) color centers directly into the culet of diamond anvils. We demonstrate the versatility of this platform by performing diffraction-limited imaging of both stress fields and magnetism as a function of pressure and temperature. We quantify all normal and shear stress components and demonstrate vector magnetic field imaging, enabling measurement of the pressure-driven α↔ϵ phase transition in iron and the complex pressure-temperature phase diagram of gadolinium. A complementary NV-sensing modality using noise spectroscopy enables the characterization of phase transitions even in the absence of static magnetic signatures.

Delayed toxic effects of sulfur mustard on respiratory tract of Iranian veterans

To investigate late toxic effects of sulfur mustard (SM) on the upper and lower respiratory tracts of Iranian veterans, 43 male veterans with more than 25% disability due to SM poisoning in 20−25 years after exposure, were studied. Direct laryngoscopy, pulmonary function tests, arterial blood gasses and pH, computed tomography of sinuses and lungs were investigated. The patients were aged 50.6 (8.9 SD) years with body mass index (BMI) of 26.6 (4.0) and disability of 53.2 (17.0%). The common findings of the upper respiratory tract were dysphonia (79.1%), post-nasal discharge (PND; 41.9%), lower larynx position (30.2%), limitation of vocal cords (25.6%) and mucosal inflammation of larynx (14.8%). The common lower respiratory diseases were diagnosed as chronic obstructive respiratory disease (84%), bronchiectasis (44.1%) and lung fibrosis (7.7%). Severity of disability was negatively correlated with BMI ( p = 0.032), spirometric parameters ( p < 0.001) and oxygen saturation ( p < 0.001), but positively correlated with low-density lipoproteins (LDL <0.010), blood pressure ( p = 0.008), diabetes mellitus ( p < 0.001), wheezing ( p = 0.0043) and bronchiectasis ( p < 0.001). Delayed toxic effects of SM in upper and lower respiratory tracts were mostly inflammatory and infectious complications, SM-induced disabilities were significantly correlated with risk factors such as diabetes mellitus, hypertension, LDL and lower-respiratory complications.