Objective: To assess clinical factors leading to recurrent retinal detachment (RD) and characteristics of recurrence in patients with Stickler Syndrome.
Methods: Retrospective case series study of patients with clinical diagnosis of Stickler Syndrome who underwent rhegmatogenous RD repair. Recurrent RD after initial surgery was categorized as "early" if the recurrence was within 1 year or "late" if greater than 1 year.
Objective: We aimed to evaluate the effect of Lysergic acid diethylamide (LSD) on the pain neural network (PNN) in healthy subjects using functional magnetic resonance imaging (fMRI).
Methods: Twenty healthy volunteers participated in a balanced-order crossover study, receiving intravenous administration of LSD and placebo in two fMRI scanning sessions. Brain regions associated with pain processing were analyzed by amplitude of low-frequency fluctuation (ALFF), independent component analysis (ICA), functional connectivity and dynamic casual modeling (DCM).
Machine learning methodology has recently been considered a smart and reliable way to monitor water quality parameters in aquatic environments like reservoirs and lakes. This study employs both individual and hybrid-based techniques to boost the accuracy of dissolved oxygen (DO) and chlorophyll-a (Chl-a) predictions in the Wadi Dayqah Dam located in Oman. At first, an AAQ-RINKO device (CTD sensor) was used to collect water quality parameters from different locations and varying depths in the reservoir.
View Article and Find Full Text PDFFormaldehyde, a known carcinogenic compound, is commonly used in various medical settings. The objective of this study was to assess the carcinogenic and non-carcinogenic risks associated with occupational exposure to formaldehyde. This study was conducted in the pathology labs of four hospitals in Tehran.
View Article and Find Full Text PDFObjective: To assess clinical factors leading to recurrent retinal detachment (RD) and characteristics of recurrence in patients with Stickler Syndrome.
Methods: Retrospective case series study of patients with clinical diagnosis of Stickler Syndrome who underwent rhegmatogenous RD repair. Recurrent RD after initial surgery was categorized as "early" if the recurrence was within 1 year or "late" if greater than 1 year.
The condition known as Plus disease is distinguished by atypical alterations in the retinal vasculature of neonates born prematurely. It has been demonstrated that the diagnosis of Plus disease is subjective and qualitative in nature. The utilization of quantitative methods and computer-based image analysis to enhance the objectivity of Plus disease diagnosis has been extensively established in the literature.
View Article and Find Full Text PDFPurpose: Radiomics analysis of oncologic positron emission tomography (PET) images is an area of significant activity and potential. The reproducibility of radiomics features is an important consideration for routine clinical use. This preliminary study investigates the robustness of radiomics features in PSMA-PET images across penalized-likelihood (Q.
View Article and Find Full Text PDFThis study aims to assess the impact of various regions of interest (ROIs) and volumes of interest (VOIs) delineations on the reproducibility of liver signal-to-noise-ratio (SNRliver) measurements, as well as to find the most reproducible way to estimate it in gallium-68 positron emission tomography ( Ga-PET) imaging. We also investigated the SNRliver-weight relationship for these ROIs and VOIs delineations. A cohort of 40 patients (40 males; mean weight: 76.
View Article and Find Full Text PDFPurpose: This study aimed to investigate the effect of music stimulation on the brain functional mechanism of depressed patients with anhedonia symptoms using functional magnetic resonance imaging (fMRI).
Methods: Participants in this study included 20 healthy subjects as the control group, 25 subjects with depression and no anhedonia as the intervention group A, and 24 subjects with depression and anhedonia as the intervention group B. The safely emotional stimulation was done by Iranian music.
Background And Objective: This study was aimed to investigate the ability of F-Fluro-deoxy-glucose (F-FDG)-based micro-positron emission tomography (microPET) imaging to evaluate the efficacy of telmisartan, a highly selective angiotensin II receptor antagonist (ARA), in intestinal tissue recovery process after in vivo irradiation.
Methods: Male Balb/c mice were randomly divided into four groups of control, telmisartan, irradiation, and telmisartan + irradiation. A solution of telmisartan in phosphate-buffered saline (PBS) was administered orally at 12 mg/kg body weight for seven consecutive days prior to whole body exposing to a single sub-lethal dose of 5 Gy X-rays.
Background: Radiation-induced hematopoietic suppression and myelotoxicity can occur due to the nuclear accidents, occupational irradiation and therapeutic interventions. Bone marrow dysfunction has always been one of the most important causes of morbidity and mortality after ionizing irradiation.
Objective: This study aims to investigate the protective effect of telmisartan against radiation-induced bone marrow injuries in a Balb/c mouse model.
This study introduces an innovative design for a palliative care program by nursing students in an internship in a neonatal intensive care unit. An embedded mixed-method approach simultaneously collected quantitative and qualitative data. Themes identified were supporting and encouraging palliative care, changing the nursing culture, and promoting quality of care.
View Article and Find Full Text PDFPurpose: To describe a case of primary vitreoretinal lymphoma (PVRL), initially presented after successful repair of rhegmatogenous retinal detachment (RRD).
Case Presentation: A 65-year-old man underwent pars plana vitrectomy with silicone oil tamponade for total RRD with grade C proliferative vitreoretinopathy in the right eye. Ten months after silicon oil removal, the patient presented with weakened vision, and multiple small yellow sub-retinal elevations was observed in fundus examination and optical coherence tomography (OCT).
Purpose: To compare the anatomical and refractive outcomes of transscleral diode versus transpupillary laser photocoagulation for the treatment of zone II type 1 retinopathy of prematurity (ROP).
Methods: In this prospective comparative interventional case series, infants with type 1 ROP in zone II were assigned to either transpupillary or transscleral laser based on the surgeons' expertise area. The rate of regression, need for retreatment, and structural and biometric outcomes at month 6 were evaluated and compared between the two treatment groups.
Background: The problem of students' gaming addiction has been related to the individual student's characteristics and the influence of family environment. Researchers aimed to investigate if and how internet gaming disorder (IGD) of the elementary school boys and girls is related to behavioral disorder and their mother's parenting style in Iran.
Methods: This is a descriptive correlational study, involving 657 fifth and sixth-grade elementary school students in 2019.
Severe drought events in recent decades and their catastrophic effects have called for drought prediction and monitoring needed for developing drought readiness plans and mitigation measures. This study used a fusion-based framework for meteorological drought modeling for the historical (1983-2016) and future (2020-2050) periods using remotely sensed datasets versus ground-based observations and climate change scenarios. To this aim, high-resolution remotely sensed precipitation datasets, including PERSIANN-CDR and CHIRPS (multi-source products), ERA5 (reanalysis datasets), and GPCC (gauge-interpolated datasets), were employed to estimate non-parametric SPI (nSPI) as a meteorological drought index against local observations.
View Article and Find Full Text PDFBackground: The Stroop test is a well-known model to denote the decline in performance under the incongruent condition, which requires selective attention and control of competitive responses. Functional near-infrared spectroscopy can identify activated brain regions associated with the Stroop interference effect.
Objective: This research aims to identify the neural correlates associated with the Stroop tasks within the brain activated regions.
Saudi J Kidney Dis Transpl
October 2021
Background: Depressive disorders are a major public health problem in developed and developing countries. Recently, several risk factors have been described for depressive disorders in children and adolescents. The aim of the present study was to identify the main risk factors that can affect the incidence of depression in Iranian children and adolescents.
View Article and Find Full Text PDFBackground: Quantitative Magnetization Transfer Imaging (QMTI) is often used to quantify the myelin content in multiple sclerosis (MS) lesions and normal appearing brain tissues. Also, automated classifiers such as artificial neural networks (ANNs) can significantly improve the identification and classification processes of MS clinical datasets.
Objective: We classified patients with relapsing-remitting multiple sclerosis (RRMS) from healthy subjects using QMTI and T1 longitudinal relaxation time data of brain white matter, then the performance of three ANN-based classifiers have been investigated.
Objective: This survey was conducted to investigate the prevalence of various psychiatric disorders among children and adolescents aged 6-18 years in urban areas of Tehran.
Methods: In the study, which was done with random sampling method, 2095 children and adolescents in the range seniors aged 6-18 years, have been studied and based on Persian version of K-SADS-PL, we reviewed the psychiatric disorders related to them.
Results: The overall prevalence of psychiatric disorders in children and adolescents was 28.
Background: Pregnant women comprise a vulnerable population owing to the changes they experience in various stages that affect their mental health. Mental health problems affects nearly one-fifth of pregnant women during the prenatal and postpartum periods. Millennium Development Goals 4 and 5 focus on maternal and child health and specify that overall health cannot be reached without mental health.
View Article and Find Full Text PDFObjectives: Breastfeeding mothers returning to work undertake multiple conflicting roles at home and work that can result in high levels of stress. Exploring coping skills amongst these mothers can help in planning useful programmes to promote family wellbeing. This study aims to explore the experiences of working breastfeeding mothers and their coping mechanism against high levels of daily stress.
View Article and Find Full Text PDF