Evaluation of Acoustic Voice Quality Index in Persian-Speaking Parkinson's Patients Compared to Healthy Controls and Its Association With Disease Severity Based on UPDRS-III and Dysarthria Severity.

Introduction: Parkinson's patients with dysarthria often suffer from multiple impairments in speech subsystems, including phonation. The Acoustic Voice Quality Index (AVQI) may be considered as a predictor of the onset and severity of Parkinson's disease.

Objective: Investigating the AVQI in Persian-speaking Parkinson's patients compared to healthy controls and its association with disease severity based on Unified Parkinson's Disease Rating Scale-Part III (UPDRS-III) and dysarthria severity.

Cepstral Analysis of Voice in Patients With Temporomandibular Disorders.

Objectives: This study aimed to assess the voice quality of patients with temporomandibular disorders (TMDs) compared with healthy subjects using cepstral analysis and investigate the relationship between the TMD severity and the values of cepstral analysis.

Methods: Subjects who met the inclusion criteria completed a general health questionnaire and the Fonseca Anamnestic Index. Patients who had TMDs with FAI were subjected to an examination based on the Diagnostic Criteria for Temporomandibular Disorders.

Voice quality in patients with temporomandibular disorders.

Objectives: This study assessed the voice quality in TMD patients compared to healthy individuals using the Dysphonia Severity Index (DSI) and evaluated the correlation between the DSI and TMD severity.

Methods: Patients who had TMD with Fonseca's anamnestic index were subjected to an examination based on the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD). A sample of 35 patients with TMD and 36 healthy subjects were included in the study.

Investigation of the effectiveness of articulation therapy through tele-practice on children with cleft palate in Khuzestan Province during COVID-19 pandemic.

Introduction: A cleft palate is a common type of facial malformation. Compensatory articulation errors are one of the important causes of unclear speech in children with cleft palate. Tele-practice (TP) helps to connect therapists and clients for assessment and therapy.

The effects of transcutaneous electrical nerve stimulation on muscle activity pattern in professional voice users with muscle tension dysphonia using surface electromyography data: A pilot study.

Objectives: Muscle Tension Dysphonia is a voice disorder, which results in stiffness in the laryngeal extrinsic muscles, intense collision, painful contractions, and vibrations of the vocal cords. Due to the multifactorial identity of Muscle Tension Dysphonia, its therapeutic approach must be multidisciplinary.

Methods: The participants were divided into two groups: a control group (5participants) that received Circumlaryngeal Manual Therapy (CMT) + Placebo Transcutaneous Electrical Nerve Stimulation and an experimental group (5participants) that received Transcutaneous Electrical Nerve Stimulation + CMT.

Multi-scale model of lumen formation via inverse membrane blebbing mechanism during sprouting angiogenesis process.

Cancer is one of the leading causes of mortality and morbidity among people worldwide. Cancer appears as solid tumors in many cases. Angiogenesis is the growth of blood vessels from the existing vasculature and is one of the imperative processes in tumor growth.

Immediate Effects of Semi-occluded Vocal Tract Exercises as a Vocal Warm-Up in Singers.

Objective: The present study aimed to investigate the Immediate Effects of Semi-occluded Vocal Tract Exercises (SOVTEs) as a vocal warm-up on the Electrical Activity of Extrinsic Laryngeal Muscles and acoustic parameters of voice in singers.

Study Design: This study used a pre-/post-interventional (quasi-experimental) design and a simple non-random sampling method.

Setting: Musculoskeletal Rehabilitation Research Center.

Factor Analysis of the Persian Version of the Voice Disability Coping Questionnaire.

Introduction: Voice disorders can affect the quality of life and coping mechanisms and also coping mechanisms can affect the way in which patients deal with their voice problems. People with voice disorders need to use coping strategies to deal with the problems caused by their voice disorder. The purpose of this study was to examine the psychometric properties and cultural adaptation of the Voice Disability Coping Questionnaire in the Iranian population.

Comparison of verbal fluency in monolingual and bilingual elderly in Iran.

Verbal fluency is one of the first and most important cognitive functions that deteriorate during the aging process. Verbal fluency is defined as the skill and speed of finding words and finding semantic and phonetic connections between words. One of the most important factors in verbal fluency is bilingualism.

The Efficacy of Phonological Processing Treatment on Stuttering Severity in Persian Pre-School Children.

Objectives: Correct phonological encoding is crucial to fluent speech production. Phonological working memory and phonological awareness are important phonological processes that affect phonological encoding. The purpose of this study was to investigate the effect of phonological processing on stuttering severity of Persian pre-school children.

Reliability, validity, and normative investigation of Persian version of a High-Level Language Test (BESS).

Our study aimed at reliability, validity, and normative investigation of the Persian version of the High-Level Language Test (BESS). This study was conducted on 60 multiple sclerosis (MS) patients as well as 60 healthy individuals. After translating the BESS into Persian, its content validity was determined based on 10 experts working in the same field.

The Relationship Between Vocal Fatigue Index and Voice Handicap Index in University Professors With and Without Voice Complaint.

Introduction: University professors, just like teachers, are considered as professional voice users, who are subject to voice disorders and complaints due to their field of work. The present study aims to investigate the relationship between vocal fatigue index and voice handicap index in university professors with and without voice complaint.

Methods: This is a cross-sectional descriptive-analytic study that was conducted on 84 university professors with an average age of 38.

Dysphonia Characteristics and Vowel Impairment in Relation to Neurological Status in Patients with Multiple Sclerosis.

Purpose: In this study, we attempted to assess the phonation and articulation subsystem changes in patients with multiple sclerosis compared to healthy individuals using Dysphonia Severity Index and Formant Centralization Ratio with the aim of evaluating the correlation between these two indexes with neurological status.

Materials And Methods: A sample of 47 patients with multiple sclerosis and 20 healthy speakers were evaluated. Patients' disease duration and disability were monitored by a neurologist.

Cross-Cultural Adaptation and Validation of the Vocal Fatigue Index into Persian.

Introduction: The aim of the present study was the cross-cultural adaptation and validation of the Vocal Fatigue Index (VFI) in Persian.

Methods: The English version of the VFI was translated to Persian using the guidelines of International Quality of Life Assessment. Eighty participants with voice disorders and 50 healthy controls without any voice disorders completed the Persian version of the VFI.

Gensini scores and well-being states among patients with coronary artery disease: A comparison study.

Background: World Health Organization (WHO) considered Mental Health Continuum (MHC) as a good instrument for well-being studies. Moreover, gensini score (GS) is an intensity index for coronary artery disease (CAD). The aim of our study was to compare GSs among patients who had coronary artery disease with different well-being states.

Diagnostic evaluation of dysphagia in multiple sclerosis patients using a Persian version of DYMUS questionnaire.

Background: Multiple sclerosis is a chronic neurological disease that may cause swallowing disorders. Dysphagia is a common problem, which patients with different levels of disability may encounter, but it is usually underestimated; therefore, effective assessments need to be performed before any serious complications. The aim of this study was to identify the frequency and characteristics of dysphagia in multiple sclerosis patients of Khuzestan MS society, using a Persian version of Dysphagia in Multiple Sclerosis (DYMUS) questionnaire.

A Comparative Study of Iranian Female Primary School Teachers' Quality of Life With and Without Voice Complaints.

Objectives/hypothesis: As the largest group of professional voice users, teachers are more likely to face voice disorders because of their specific job conditions. This study aimed to compare the quality of life in female teachers with and without voice complaints.

Study Design: This is a cross-sectional descriptive-analytical study.

Relationship Between Voice and Motor Disabilities of Parkinson's Disease.

To evaluate voice of Iranian patients with Parkinson's disease (PD) and find any relationship between motor disabilities and acoustic voice parameters as speech motor components. We evaluated 27 Farsi-speaking PD patients and 21 age- and sex-matched healthy persons as control. Motor performance was assessed by the Unified Parkinson's Disease Rating Scale part III and Hoehn and Yahr rating scale in the "on" state.

High crash areas resulting in injuries and deaths in Tehran traffic areas from november 2011 through february 2012: a geographic information system analysis.

Background: Evaluation of intra-city roads in terms of environmental factors of motor vehicle injuries can help us to better identify these factors and the share of each of the factors in injuries. Therefore, this study was conducted to determine the high injury areas and the risk factors of motor vehicle crashes resulting in injury and death in Tehran, the capital city of Iran, from November 2011 through February 2012.

Methods: In this cross sectional study, the locations of the motor vehicle injuries resulting in injuries and deaths were obtained from police stations in Tehran.

Voice-related disability of Iranian patients with temporomandibular disorders.

Introduction: The relationship between handicaps because of voice disorders and temporomandibular disorders (TMDs) severity was examined.

Method: Fifty-two Persian women with temporomandibular disorder (TMD) were examined by two dentists in separate sessions and the assessment protocol of the Dentistry Clinic of Tehran University of Medical Sciences was filled by both dentists and finally they gave their opinion separately about the existence of TMD and categorized the severity of TMD as mild, moderate, and severe. To assess perceived disability resulting from voice disorders in TMD patients, the voice handicap index (VHI) questionnaire was used.

Cross-cultural adaptation and validation of the voice-related quality of life into Persian.

The purpose of this study was to adapt and determine reliability, validity, and responsiveness of voice-related quality of life (V-RQOL) for Persian. A total of 300 patients with voice disorders participated in the study. Also, 116 people without any voice disorders volunteered to participate in the study as a control group.

Intrarater and interrater reliability of sagittal head posture: a novel technique performed by a physiotherapist and a speech and language pathologist.

Introduction: Different professionals such as speech and language pathologists and voice scientists are involved in the evaluation of head and neck posture. Therefore, a reliable, time-efficient, and precise method of posture assessment is essential for use in clinical and research settings. Photogrammetry is one of the most commonly used methods to assess head and neck posture.

Fundamental frequency changes of Persian speakers across the life span.

This study was designed to investigate changes in fundamental frequency (F0) across the life span in Persian speakers. Four hundred children and adults were asked to produce a sustained phonation of vowel /a/ and their voice samples were studied in 10 age groups. F0 was analyzed using the software Praat (Version 5.

The effect of levamisole on mortality rate among patients with severe burn injuries.

Background: Burn injuries are one of the main causes of mortality and morbidity throughout the world and burn patients have higher chances for infection due to their decreased immune resistance. Levamisole, as an immunomodulation agent, stimulates the immune response against infection.

Materials And Methods: This randomized clinical trial was conducted in Motahari Burn Center, Tehran, Iran.

Long-term average spectra of adult Iranian speakers' voice.

Introduction: Long-term average spectrum (LTAS) allows quantifying the voice quality and provides an overview of the mean spectral characteristics of a voice. The aims of this study were to survey normal spectral characteristics of Persian and investigate sex-related changes in the source characteristics of dynamic speech using LTAS.

Method: Speech samples obtained from 30 male and 30 female Persian-speaking participants reading a text in habitual pitch and loudness level.