Publications by authors named "Alaa Abbas"

(Guanine Nucleotide-Binding Protein, Alpha Stimulating) is a complex gene that encodes the alpha subunit of the stimulatory G protein (Gα), critical for signaling through various G protein-coupled receptors. Inactivating genetic and epigenetic changes in , resulting in Gα deficiency, cause different variants of pseudohypoparathyroidism, which may manifest features of Albright hereditary osteodystrophy (AHO, a syndrome characterized by early-onset obesity and other developmental defects). Recent findings have linked Gα deficiency with isolated, severe, early-onset obesity, suggesting it as a potential, underrecognized cause of monogenic, non-syndromic obesity.

View Article and Find Full Text PDF

Extracellular vesicles (EVs), particularly microvesicles (MVs), have gained significant attention for their role as mediators of intercellular communication in both physiological and pathological contexts, including diabetes mellitus (DM) and its complications. This review provides a comprehensive analysis of the emerging roles of MVs in the pathogenesis of diabetes and associated complications such as nephropathy, retinopathy, cardiomyopathy, and neuropathy. MVs, through their cargo of proteins, lipids, mRNAs, and miRNAs, regulate critical processes like inflammation, oxidative stress, immune responses, and tissue remodeling, all of which contribute to the progression of diabetes and its complications.

View Article and Find Full Text PDF

Psoriasis is a chronic, inflammatory dermatosis characterized by thickened, reddened, and scaly skin lesions. Norfloxacin is a fluoroquinolone antibiotic with enhanced antioxidant, anti-inflammatory, and immunomodulatory bioactivities. The aim of this study was to figure out the possible impact of topical norfloxacin on an imiquimod-induced model of psoriasis in mice.

View Article and Find Full Text PDF

Psoriasis is a life-long immune-mediated dermatosis with thickened, reddish, and flaky skin patches. Canagliflozin is a gliflozin antidiabetic with non-classical remarkable antioxidative, anti-inflammatory, anti-proliferative, and immune-modulating effects. The aim of this study is to examine the probable effects of topical canagliflozin on a mouse model of imiquimod-provoked psoriasis-like dermatitis.

View Article and Find Full Text PDF

The kinase suppressor of Ras 2 () gene is associated with monogenic obesity, and loss-of-function variants in have been identified in individuals with severe early-onset obesity. This study investigated variants in 9 pediatric patients with severe early-onset obesity in Qatar using whole genome sequencing among a cohort of 240 individuals. We focused on variants with a minor allele frequency (MAF) below 1% and a Combined Annotation Dependent Depletion (CADD) score above 13 to identify potential causative variants.

View Article and Find Full Text PDF

Angiotensin-converting enzyme 2 (ACE2) is identified as the functional receptor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of the ongoing global coronavirus disease-2019 (COVID-19) pandemic. This study aimed to elucidate potential therapeutic avenues by scrutinizing approved drugs through the identification of the genetic signature associated with SARS-CoV-2 infection in individuals with asthma. This exploration was conducted through an integrated analysis, encompassing interaction networks between the ACE2 receptor and common host (co-host) factors implicated in COVID-19/asthma comorbidity.

View Article and Find Full Text PDF

Background: GNAS (guanine nucleotide-binding protein, alpha stimulating) is an imprinted gene that encodes Gα, the α subunit of the heterotrimeric stimulatory G protein. This subunit mediates the signalling of a diverse array of G protein-coupled receptors (GPCRs), including the melanocortin 4 receptor (MC4R) that serves a pivotal role in regulating food intake, energy homoeostasis, and body weight. Genetic or epigenetic alterations in GNAS are known to cause pseudohypoparathyroidism in its different subtypes and have been recently associated with isolated, early-onset, severe obesity.

View Article and Find Full Text PDF

Unlabelled: Psoriasis is an uncontrolled, long-lasting inflammatory dermatosis distinguished by thickened, erythematous, and flaky skin lesions. Massive amounts of inflammatory cytokines are produced when immune system imbalances are driven by genetic and environmental triggers. Vinpocetine (VNP), a man-made analogue of the compound vincamine found in the dwarf periwinkle herb, has robust anti-inflammatory, immunomodulatory, and anti-oxidative effects; alleviates the epidermal penetration of immune cells, such as eosinophils and neutrophils; and abolishes the generation of pro-inflammatory molecules.

View Article and Find Full Text PDF

A novel derivative of ciprofloxacin (Cpx) was synthesized and characterized using various analytical techniques, including FT-IR spectroscopy, UV-Vis spectroscopy, TEM and SEM analysis, H NMR, C NMR, and HPLC analysis. The newly prepared Cpx derivative (Cpx-Drv) exhibited significantly enhanced antibacterial properties compared to Cpx itself. In particular, Cpx-Drv demonstrated a 51% increase in antibacterial activity against and a 30% improvement against .

View Article and Find Full Text PDF

Psoriasis is a lifelong immune-driven skin condition characterized by excessive epidermal overgrowth and inflammatory cell infiltration. Gemifloxacin is a fourth-generation fluoroquinolone with improved immunomodulatory and anti-inflammatory properties that are believed to possess an attractive role in psoriasis via suppressing the production of cytokines, chemokines, and eosinophil and neutrophil chemotaxis. The aim of this research is to investigate the ameliorative effects of prolonged topical gemifloxacin (GMF) alone and combined with clobetasol propionate (CLO) on an imiquimod (IMQ)-induced mouse model of psoriasis.

View Article and Find Full Text PDF

Cefoperazone (Cfz) is a member of the third generation of parenteral cephalosporin antibiotics. It is used on a wide scale in prescribed antibiotic drugs as anti-infection, especially for Gram-negative and also against Gram-positive microorganisms. The current study aimed to find a rapid RP-HPLC method of Cfz analysis with high linearity, repeatability, sensitivity, selectivity, and inexpensive.

View Article and Find Full Text PDF

Circular RNAs (circRNAs), a class of non-coding RNAs (ncRNAs), are highly stable and ubiquitous molecules that exhibit tissue-specific expression. Accumulating evidence has shown that aberrant expression of circRNAs can play a role in the pathogenesis of several diseases. Rheumatic diseases are a varied group of autoimmune and inflammatory disorders affecting mainly the musculoskeletal system.

View Article and Find Full Text PDF

A protocol for the carbonylative synthesis of acyl amidines from aryl halides, amidines, and carbon monoxide catalyzed by Pd(0) is reported herein. Notably, carbon monoxide is generated ex situ from a solid CO source, and several productive palladium ligands were identified with complementary benefits and substrate scope. Furthermore, sequential one-pot, two-step protocols for the synthesis of 1,2,4-triazoles and 1,2,4-oxadiazoles via acyl amidine intermediates are reported.

View Article and Find Full Text PDF

The objective of the article is to describe the methodology followed to validate the finite element model for the new method of setting pipes in a separate sewer system, using one trench to accommodate the storm pipe over the sanitary pipe "doi.org/10.1016/j.

View Article and Find Full Text PDF

Background: Falls are the leading cause of geriatric injury.

Objectives: We aimed to study the anatomical distribution, severity, and outcome of geriatric fall-related injuries in order to give recommendations regarding their prevention.

Methods: All injured patients with an age ≥ 60 years who were admitted to Al-Ain Hospital or died in the Emergency Department due to falls were prospectively studied over a four year period.

View Article and Find Full Text PDF

Four bodybuilders who injected anabolic steroids and ingested commercial protein (78-104 g/day) and creatine (15 g/day) products presented with serum creatinine levels between 229.84 and 335.92 µmol/L (2.

View Article and Find Full Text PDF

Objective: Studies in literature on skin of patients with massive weight loss are limited and somehow conflicting in their results. The aim of this study was to quantitatively assess the skin change after massive weight loss.

Method: This study was performed on 30 patients from whom skin biopsies were taken from the skin excised during operations, divided into 3 main groups.

View Article and Find Full Text PDF

Objective: We aimed to prospectively study the demography, severity of injury and outcome of alcohol-related road traffic collision (RTC) injuries in the United Arab Emirates.

Methods: Data of RTC Registry of Al-Ain City were prospectively collected from Al-Ain and Tawam hospitals during the period of April 2006 to October 2007. It included all RTC trauma patients who were admitted or those who died after arrival to these hospitals.

View Article and Find Full Text PDF

Objectives: To evaluate the quantity and quality of published vascular surgery research articles from the Gulf Cooperation Council (GCC) countries so as to identify areas for improvement.

Design: Descriptive study.

Materials: Published MEDLINE articles on vascular surgery from the GCC countries (1960-2010).

View Article and Find Full Text PDF

We aimed to study the anatomical distribution, severity and outcome of hospitalised interpersonal violence-related injured patients in Al-Ain, United Arab Emirates so as to give recommendations regarding the magnitude of this problem, its causes and priorities of prevention. Data were retrieved from Al-Ain Hospital Trauma Registry, which was prospectively collected over three years. There were 75 patients (males = 85.

View Article and Find Full Text PDF

Aim: To study the biomechanism, pattern of injury, management, and outcome of major vascular injuries treated at Mubarak Al-Kabeer Teaching Hospital, Kuwait during the Second Gulf War.

Methods: This is a descriptive retrospective study. War-related injured patients who had major vascular injuries and were treated at Mubarak Al-Kabeer Teaching Hospital from August 1990 to September 1991 were studied.

View Article and Find Full Text PDF

Background: The high risk of injury and death of motorcycle riders is a major global health problem. This study aimed to evaluate the effect of helmet wearing on motorcycle riders' death rates on a global level.

Methods: Data for motorcycle riders were collected from 70 countries.

View Article and Find Full Text PDF

Background: We aimed to study the distribution and causes of trauma in women of child-bearing age.

Methods: Data were collected from Al-Ain Hospital (United Arab Emirates-UAE) Trauma Registry. Females aged 16 to 45 years (child-bearing age) who were admitted with trauma between March 2003 and March 2006 were included in the study.

View Article and Find Full Text PDF

A simple, quantitative and rapid method for total brominated vegetable oil (BVO) using ion chromatography (IC) with suppressed conductivity detection was developed and successfully applied to soft drinks with results expressed as inorganic bromide anion. The procedure involves extraction of BVO with diethyl ether and treatment with zinc dust in a solution of acetic acid, giving recoveries ranging between 92.5 and 98.

View Article and Find Full Text PDF

Background/objective: To review published pediatric trauma research from the Gulf Cooperation Council (GCC) countries so as to identify research fields that need to be enhanced.

Methods: A MEDLINE search for articles on pediatric trauma from GCC countries during the period 1960 to 2010 was performed. The content of articles was analyzed, classified and summarized.

View Article and Find Full Text PDF