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1.
Dev Neurorehabil ; 27(3-4): 83-92, 2024.
Article in English | MEDLINE | ID: mdl-38709153

ABSTRACT

Lack of eye contact and imitation deficits are frequently targeted in behavioral interventions for children with autism spectrum disorder (ASD). In this study, we examined the effects of prompting and modeling on the imitation skills and eye contact of three Arabic-speaking young children with ASD in Syria. A multiple baseline design with a withdrawal component was used to evaluate the effects of the intervention in a clinical setting, at a center for children with special needs, and in follow-up sessions conducted in the participants' homes. All participants' imitative responses and eye contact increased when prompting and modeling were used. Our findings support the effectiveness of prompting and modeling on imitation skills.


Subject(s)
Autism Spectrum Disorder , Imitative Behavior , Humans , Autism Spectrum Disorder/rehabilitation , Autism Spectrum Disorder/physiopathology , Syria , Male , Child, Preschool , Female , Behavior Therapy/methods , Child
2.
Infect Immun ; 92(6): e0054023, 2024 Jun 11.
Article in English | MEDLINE | ID: mdl-38727242

ABSTRACT

Anaplasma marginale is an obligate, intracellular, tick-borne bacterial pathogen that causes bovine anaplasmosis, an often severe, production-limiting disease of cattle found worldwide. Methods to control this disease are lacking, in large part due to major knowledge gaps in our understanding of the molecular underpinnings of basic host-pathogen interactions. For example, the surface proteins that serve as adhesins and, thus, likely play a role in pathogen entry into tick cells are largely unknown. To address this knowledge gap, we developed a phage display library and screened 66 A. marginale proteins for their ability to adhere to Dermacentor andersoni tick cells. From this screen, 17 candidate adhesins were identified, including OmpA and multiple members of the Msp1 family, including Msp1b, Mlp3, and Mlp4. We then measured the transcript of ompA and all members of the msp1 gene family through time, and determined that msp1b, mlp2, and mlp4 have increased transcript during tick cell infection, suggesting a possible role in host cell binding or entry. Finally, Msp1a, Msp1b, Mlp3, and OmpA were expressed as recombinant protein. When added to cultured tick cells prior to A. marginale infection, all proteins except the C-terminus of Msp1a reduced A. marginale entry by 2.2- to 4.7-fold. Except OmpA, these adhesins lack orthologs in related pathogens of humans and animals, including Anaplasma phagocytophilum and the Ehrlichia spp., thus limiting their utility in a universal tick transmission-blocking vaccine. However, this work greatly advances efforts toward developing methods to control bovine anaplasmosis and, thus, may help improve global food security.


Subject(s)
Adhesins, Bacterial , Anaplasma marginale , Dermacentor , Animals , Anaplasma marginale/genetics , Adhesins, Bacterial/metabolism , Adhesins, Bacterial/genetics , Dermacentor/microbiology , Cattle , Bacterial Adhesion/physiology , Anaplasmosis/microbiology , Bacterial Outer Membrane Proteins/metabolism , Bacterial Outer Membrane Proteins/genetics , Cell Surface Display Techniques , Host-Pathogen Interactions , Cattle Diseases/microbiology
3.
Cureus ; 16(2): e55223, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38558680

ABSTRACT

Pulmonary echinococcosis is a parasitic infection that accounts for 20% of the infected cases with echinococcosis. Patients may present after a cyst rupture associated with a variety of complications, including acute respiratory distress syndrome (ARDS). Extracorporeal membrane oxygenation (ECMO) is known as supportive therapy for patients with respiratory and cardiac failure, including ARDS associated with multiple causes. Parasitic infection associated with ARDS due to cyst rupture managed with ECMO as bridging to definitive surgical intervention is documented in two previous case reports only. Here, we are presenting a 21-year-old female with a pulmonary hydatid cyst complicated by ARDS and managed with ECMO.

4.
J Family Community Med ; 31(1): 63-70, 2024.
Article in English | MEDLINE | ID: mdl-38406222

ABSTRACT

BACKGROUND: Multiple sclerosis (MS) is a chronic, inflammatory demyelinating disease that affects various parts of the central nervous system. Fatigue, a common symptom, transient, prolonged, or chronic experienced by individuals with MS, can significantly impact daily functioning. It can be associated with underlying pathological processes or can have an idiopathic cause, such as chronic fatigue syndrome (CFS). The study aimed to assess the presence and etiology of fatigue in MS patients and its relationship with CFS. MATERIALS AND METHODS: This cross-sectional study was conducted in the Eastern Province of Saudi Arabia. Data were collected using a questionnaire from a sample of 225 MS patients receiving care at our university hospital. The questionnaire included the Centers for Disease Control and Prevention (CDC) criteria for diagnosing CFS and the Expanded Disability Status Scale to evaluate fatigue in MS patients. RESULTS: Of the total of 225 MS patients who participated in this study, 87.1% were diagnosed with relapsing-remitting MS, 6.7% with primary progressive MS, 3.6% with clinically isolated syndrome, and 2.7% with secondary progressive MS. About 53% had experienced fatigue that persisted for over 6 months. Analysis of CFS diagnosis revealed that 7.3% of patients met both CDC criteria and self-reported answers while 17.5% reported having CFS despite not meeting the CDC criteria. These findings highlight a significant lack of agreement between patient-reported diagnoses and established criteria, indicating poor agreement (P = 0.028). CONCLUSION: The study found an association between CFS and MS, and a significant impact on daily functioning. The study revealed lack of agreement between patient-reported diagnoses and established criteria for CFS. This emphasizes the need for a standardized approach to diagnosis and evaluation of fatigue in MS patients.

5.
Braz J Microbiol ; 55(1): 411-427, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38030866

ABSTRACT

Colistin is used as a last resort for the management of infections caused by multi-drug resistant (MDR) bacteria. However, the use of this antibiotic could lead to different side effects, such as nephrotoxicity, in most patients, and the high prevalence of colistin-resistant strains restricts the use of colistin in the clinical setting. Additionally, colistin could induce resistance through the increased formation of biofilm; biofilm-embedded cells are highly resistant to antibiotics, and as with other antibiotics, colistin is impaired by bacteria in the biofilm community. In this regard, the researchers used combination therapy for the enhancement of colistin activity against bacterial biofilm, especially MDR bacteria. Different antibacterial agents, such as antimicrobial peptides, bacteriophages, natural compounds, antibiotics from different families, N-acetylcysteine, and quorum-sensing inhibitors, showed promising results when combined with colistin. Additionally, the use of different drug platforms could also boost the efficacy of this antibiotic against biofilm. The mentioned colistin-based combination therapy not only could suppress the formation of biofilm but also could destroy the established biofilm. These kinds of treatments also avoided the emergence of colistin-resistant subpopulations, reduced the required dosage of colistin for inhibition of biofilm, and finally enhanced the dosage of this antibiotic at the site of infection. However, the exact interaction of colistin with other antibacterial agents has not been elucidated yet; therefore, further studies are required to identify the precise mechanism underlying the efficient removal of biofilms by colistin-based combination therapy.


Subject(s)
Anti-Bacterial Agents , Colistin , Humans , Colistin/pharmacology , Anti-Bacterial Agents/pharmacology , Biofilms , Quorum Sensing , Bacteria , Microbial Sensitivity Tests
6.
Mol Biol Rep ; 50(12): 10579-10588, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37932498

ABSTRACT

The skeleton is a living organ that undergoes constant changes, including bone formation and resorption. It is affected by various diseases, such as osteoporosis, osteopenia, and osteomalacia. Nowadays, several methods are applied to protect bone health, including the use of hormonal and non-hormonal medications and supplements. However, certain drugs like glucocorticoids, thiazolidinediones, heparin, anticonvulsants, chemotherapy, and proton pump inhibitors can endanger bone health and cause bone loss. New studies are exploring the use of supplements, such as conjugated linoleic acid (CLA) and glucosamine, with fewer side effects during treatment. Various mechanisms have been proposed for the effects of CLA and glucosamine on bone structure, both direct and indirect. One mechanism that deserves special attention is the regulatory effect of RANKL/RANK/OPG on bone turnover. The RANKL/RANK/OPG pathway is considered a motive for osteoclast maturation and bone resorption. The cytokine system, consisting of the receptor activator of the nuclear factor (NF)-kB ligand (RANKL), its receptor RANK, and its decoy receptor, osteoprotegerin (OPG), plays a vital role in bone turnover. Over the past few years, researchers have observed the impact of CLA and glucosamine on the RANKL/RANK/OPG mechanism of bone turnover. However, no comprehensive study has been published on these supplements and their mechanism. To address this gap in knowledge, we have critically reviewed their potential effects. This review aims to assist in developing efficient treatment strategies and focusing future studies on these supplements.


Subject(s)
Bone Diseases, Metabolic , Linoleic Acids, Conjugated , Humans , Osteoprotegerin/metabolism , Glucosamine , Bone Diseases, Metabolic/metabolism , RANK Ligand/metabolism , Osteoclasts/metabolism
7.
Pathol Res Pract ; 251: 154905, 2023 Nov.
Article in English | MEDLINE | ID: mdl-37925820

ABSTRACT

Aerobic glycolysis, also known as the Warburg effect, is a metabolic phenomenon frequently observed in cancer cells, characterized by the preferential utilization of glucose through glycolysis, even under normal oxygen conditions. This metabolic shift provides cancer cells with a proliferative advantage and supports their survival and growth. While the Warburg effect has been extensively studied, the underlying mechanisms driving this metabolic adaptation in cancer cells remain incompletely understood. In recent years, emerging evidence has suggested a potential link between endoplasmic reticulum (ER) stress and the promotion of aerobic glycolysis in cancer cells. The ER is a vital organelle involved in protein folding, calcium homeostasis, and lipid synthesis. Various cellular stresses, such as hypoxia, nutrient deprivation, and accumulation of misfolded proteins, can lead to ER stress. In response, cells activate the unfolded protein response (UPR) to restore ER homeostasis. However, prolonged or severe ER stress can activate alternative signaling pathways that modulate cellular metabolism, including the promotion of aerobic glycolysis. This review aims to provide an overview of the current understanding regarding the influence of ER stress on aerobic glycolysis in cancer cells to shed light on the complex interplay between ER stress and metabolic alterations in cancer cells. Understanding the intricate relationship between ER stress and the promotion of aerobic glycolysis in cancer cells may provide valuable insights for developing novel therapeutic strategies targeting metabolic vulnerabilities in cancer.


Subject(s)
Endoplasmic Reticulum Stress , Neoplasms , Humans , Unfolded Protein Response , Signal Transduction , Glycolysis
8.
Heliyon ; 9(9): e19384, 2023 Sep.
Article in English | MEDLINE | ID: mdl-37662800

ABSTRACT

New liquid crystalline hydrogen bonded 3- (or 4)-n-alkanoyloxy benzoic acids were synthesized and probed theoretically and experimentally. The molecular structures of these compounds were elucidated by proton NMR, carbon-13 NMR and elemental analyses. Differential scanning calorimetry (DSC) was used to investigate the thermal and mesomorphic properties of all the symmetrical dimers that bearing identical alkanoyloxy chains. Moreover, polarized optical microscopy (POM) was used to determine their mesophases. The findings show that all the designed symmetrical dimers exhibit the smectic mesophase with relative thermal stability that depends on the length of their terminal side chain. Additionally, the experimental findings of the mesomorphic behavior are further supported by DFT calculations. The alkanoyloxy benzoic acid para-derivatives (In) were shown to be more stable than their meta-substituted (IIn) analogues due to stronger hydrogen bonding interactions. The computed reactivity parameters showed that the position of ester moiety has a significant impact on the acids reactivity. The absorbance spectra of both the 3- (or 4)-n-alkanoyloxy benzoic acids revealed a blue shift with the increment of the of alkyl chain size; however, the energy band gaps of 3-n-alkanoyloxy benzoic derivatives were found to be slightly higher than those of the 4-n-alkanoyloxy benzoic acids. Moreover, the photoluminescence spectrum of the prepared materials is rather broad, and exhibited a red shift as the alkyl chain length increases. The fluorescence lifetime shown to rise as alkyl chain length grows longer, and 3-n-alkanoyloxy benzoic acids have slightly longer lifetime compared to their 4-n-alkanoyloxy benzoic analogues.

9.
Mol Diagn Ther ; 27(6): 703-722, 2023 11.
Article in English | MEDLINE | ID: mdl-37773247

ABSTRACT

Undifferentiated, highly proliferative, clonogenic, and self-renewing dental stem cells have paved the way for novel approaches to mending cleft palates, rebuilding lost jawbone and periodontal tissue, and, most significantly, recreating lost teeth. New treatment techniques may be guided by a better understanding of these cells and their potential in terms of the specificity of the regenerative response. MicroRNAs have been recognized as an essential component in stem cell biology due to their role as epigenetic regulators of the processes that determine stem cell destiny. MicroRNAs have been proven to be crucial in a wide variety of molecular and biological processes, including apoptosis, cell proliferation, migration, and necrocytosis. MicroRNAs have been recognized to control protein translation, messenger RNA stability, and transcription and have been reported to play essential roles in dental stem cell biology, including the differentiation of dental stem cells, the immunological response, apoptosis, and the inflammation of the dental pulp. Because microRNAs increase dental stem cell differentiation, they may be used in regenerative medicine to either preserve the stem cell phenotype or to aid in the development of tooth tissue. The development of novel biomarkers and therapies for dental illnesses relies heavily on progress made in our knowledge of the roles played by microRNAs in regulating dental stem cells. In this article, we discuss how dental stem cells and their associated microRNAs may be used to cure dental illness.


Subject(s)
Mesenchymal Stem Cells , MicroRNAs , Stomatognathic Diseases , Humans , MicroRNAs/genetics , MicroRNAs/metabolism , Mesenchymal Stem Cells/metabolism , Tissue Engineering/methods , Stem Cells/metabolism , Biomarkers/metabolism , Stomatognathic Diseases/metabolism
10.
Pathol Res Pract ; 250: 154825, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37769396

ABSTRACT

Triple-negative breast cancer (TNBC) represents a challenging and aggressive form of breast cancer associated with limited treatment options and poor prognosis. Although chemotherapy is a primary therapeutic approach, drug resistance often hinders treatment success. However, the expanding knowledge of TNBC subtypes and molecular biology has paved the way for targeted therapies. Notably, exosomes (extracellular vesicles) have emerged as crucial carriers of tumorigenic factors involved in oncogenesis and drug resistance, facilitating cell-to-cell communication and offering potential as self-delivery systems. Among the cargo carried by exosomes, microRNAs (miRNAs) have gained attention due to their ability to mediate epigenetic changes in recipient cells upon transfer. Research has confirmed dysregulation of exosomal miRNAs in breast cancer cells compared to healthy cells, establishing them as promising biomarkers for cancer diagnosis and prognosis. In this comprehensive review, we summarize the latest research findings that underscore the diagnostic and prognostic significance of exosomal miRNAs in TNBC treatment. Furthermore, we explore contemporary therapeutic approaches utilizing these exosomal miRNAs for the benefit of TNBC patients, shedding light on potential breakthroughs in TNBC management.

11.
Pathol Res Pract ; 248: 154631, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37393667

ABSTRACT

MicroRNA-126 (miR-126) has become a key player in the biology of cancer, playing a variety of functions in carcinogenesis and cancer development. The diagnostic and prognostic potential of miR-126 in diverse cancer types is summarized in this thorough analysis, with an emphasis on its role in tumor angiogenesis, invasion, metastasis, cell proliferation, apoptosis, and treatment resistance. MiR-126 dysregulation is linked to a higher risk of developing cancer and a worse prognosis. Notably, miR-126 affects tumor vascularization and development by targeting vascular endothelial growth factor-A (VEGF-A). Through its impact on genes involved in cell adhesion and migration, it also plays a vital part in cancer cell invasion and metastasis. Additionally, miR-126 controls drug resistance, apoptosis, and cell proliferation, which affects cancer cell survival and treatment response. It may be possible to develop innovative therapeutic approaches to stop tumor angiogenesis, invasion, and metastasis, as well as combat drug resistance by focusing on miR-126 or its downstream effectors. The versatility of miR-126's functions highlights the role that it plays in cancer biology. To understand the processes behind miR-126 dysregulation, pinpoint precise targets, and create efficient therapies, more investigation is required. Utilizing miR-126's therapeutic potential might have a significant influence on cancer treatment plans and patient outcomes.


Subject(s)
MicroRNAs , Humans , MicroRNAs/genetics , MicroRNAs/metabolism , Vascular Endothelial Growth Factor A/metabolism , Cell Line, Tumor , Cell Movement/genetics , Neovascularization, Pathologic/genetics , Neovascularization, Pathologic/metabolism , Carcinogenesis/genetics , Cell Proliferation , Gene Expression Regulation, Neoplastic/genetics
12.
Sustain Chem Pharm ; 34: 101136, 2023 Sep.
Article in English | MEDLINE | ID: mdl-37333050

ABSTRACT

The Severe Acute Respiratory Syndrome CoronaVirus 2 (SARS-CoV-2) is responsible for ongoing epidemics in humans and some other mammals and has been declared a public health emergency of international concern. In this project, several small non-peptide molecules were synthesized to inhibit the major proteinase (Mpro) of SARS-CoV-2 using rational strategies of drug design and medicinal chemistry. Mpro is a key enzyme of coronaviruses and plays an essential role in mediating viral replication and transcription in human lung epithelial and stem cells, making it an attractive drug target for SARS-CoV. The antiviral potential of imidazoline derivatives as inhibitors of (SARS-CoV-2) Mpro was evaluated using in-silico techniques such as molecular docking simulation, molecular dynamics (MD), and ADMET prediction. The docking scores of these imidazoline derivatives were compared to that of the N3 crystal inhibitor and showed that most of these compounds, particularly compound E07, interacted satisfactorily in the active site of the coronavirus and strongly interacted with the residues (Met 165, Gln 166, Met 165, His 41, and Gln 189). Furthermore, the results were confirmed by MD simulations after exposure to long-term MD simulations and ADMET predictions.

13.
Pathol Res Pract ; 247: 154565, 2023 Jul.
Article in English | MEDLINE | ID: mdl-37267725

ABSTRACT

Cholangiocarcinoma, also referred to as CCA, is a highly complex epithelial malignancy that can impact various organs and regions of the body, including the perihilar, intrahepatic, and distal organs. This cancer is characterized by the malignant growth of the epithelial lining in the bile ducts, which spans the entire biliary tree and is accountable for disease progression. The current state of affairs concerning CCA is concerning, with poor prognoses, high recurrence rates, and dismal long-term survival rates significantly burden healthcare facilities worldwide. Studies have identified numerous signaling pathways and molecules involved in the development and progression of CCA, including microRNAs, an important class of non-coding RNAs that have the ability to modulate these cellular signaling pathways significantly. In addition, microRNAs may serve as an innovative target for developing novel therapeutic approaches for CCA. In this review, we explore the underlying mechanisms and signaling pathways implicated in the initiation and progression of CCA, focusing on the future direction of utilizing microRNAs as a promising treatment option for this challenging malignancy.


Subject(s)
Bile Duct Neoplasms , Cholangiocarcinoma , MicroRNAs , Humans , MicroRNAs/genetics , Bile Duct Neoplasms/pathology , Cholangiocarcinoma/pathology , Bile Ducts, Intrahepatic/pathology , Bile Ducts
14.
Materials (Basel) ; 16(12)2023 Jun 10.
Article in English | MEDLINE | ID: mdl-37374488

ABSTRACT

The mesomorphic stability and optical activity of new group-based benzotrifluoride liquid crystals, (E)-4-(((4-(trifluoromethyl) phenyl) imino) methyl) phenyl 4-(alkyloxy)benzoate, or In, were investigated. The end of the molecules connected to the benzotrifluoride moiety and the end of the phenylazo benzoate moiety have terminal alkoxy groups which can range in chain length from 6 to 12 carbons. The synthesized compounds' molecular structures were verified using FT-IR, 1H NMR, mass spectroscopy, and elemental analysis. Mesomorphic characteristics were verified using differential scanning calorimetry (DSC) and a polarized optical microscope (POM). All of the homologous series that have been developed display great thermal stability across a broad temperature range. Density functional theory (DFT) determined the examined compounds' geometrical and thermal properties. The findings showed that every compound is entirely planar. Additionally, by using the DFT approach, it was possible to link the experimentally found values of the investigated compounds' investigated compounds' mesophase thermal stability, mesophase temperature ranges, and mesophase type to the predicted quantum chemical parameters.

15.
Pathol Res Pract ; 246: 154470, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37150133

ABSTRACT

The immune system uses various immune checkpoint axes to adjust responses, support homeostasis, and deter self-reactivity and autoimmunity. Nevertheless, non-small-cell lung carcinoma (NSCLC) can use protective mechanisms to facilitate immune evasion, which leads to potentiated cancer survival and proliferation. In this light, many blocking anti-bodies have been developed to negatively regulate checkpoint molecules, in particular, programmed cell death protein 1 (PD-1) / PD-ligand 1 (L1), and bypass these immune suppressive mechanisms. Meanwhile, anti-PD-1 anti-bodies such as nivolumab, pembrolizumab, cemiplimab, and sintilimab have shown excellent competence in successfully inspiring immune responses versus NSCLC. Accordingly, the United States Food and Drug Administration (FDA) has recently approved nivolumab (alone or in combination with ipilimumab) and pembrolizumab (alone or in combination with chemotherapy) as first-line treatment for advanced NSCLC patients. However, PD-1 blockade monotherapy remains inefficient in more than 60% of NSCLC patients, and many patients don't respond or acquire resistance to this modality. Also, toxicities related to anti-PD-1 anti-body have been progressively identified in clinical trials and oncology practice. Herein, we will outline the clinical benefits of PD-1 blockade therapy alone or in combination with other treatments (e.g., chemotherapy, radiotherapy, anti-angiogenic therapy) in NSCLC patients. Moreover, we will take a glimpse into the recently identified predictive biomarkers to determine patients most likely to suffer serious adverse events to decrease untoward toxicity risk and diminish treatment costs.


Subject(s)
Carcinoma, Non-Small-Cell Lung , Lung Neoplasms , Humans , Carcinoma, Non-Small-Cell Lung/pathology , Immunotherapy , Lung Neoplasms/pathology , Nivolumab/therapeutic use , Programmed Cell Death 1 Receptor , United States , United States Food and Drug Administration
16.
BMC Endocr Disord ; 23(1): 110, 2023 May 17.
Article in English | MEDLINE | ID: mdl-37198592

ABSTRACT

BACKGROUND: Hypogonadism in older men is often considered as late onset hypogonadism. However, this clinical condition results from primary testicular failure which could be of genetic origin with Klinefelter syndrome being the most common chromosomal abnormality associated with it. CASE PRESENTATION: We report a heterogeneous group of cases who were diagnosed with hypergonadotropic hypogonadism in their adulthood and were found to have rare chromosomal aberrations. All were elderly men (in their 70 s and 80 s) for whom the diagnosis was made during the evaluation of incidental symptoms suggestive of endocrinopathy. The first had hyponatremia; the other two had gynaecomastia and features of hypogonadism noted during admission for various acute medical problems. With respect to their genetic results; the first had a male karyotype with balanced reciprocal translocation between the long arm of chromosome 4 and the short arm of chromosome 7. The second case had a male karotype with one normal X chromosome and an isochrome for the short arm of the Y chromosome. The third case was an XX male with unbalanced translocation between the X & Y chromosomes with retention of the SRY locus. CONCLUSION: Hypergonadotrophic hypogonadism in the elderly, may be due to chromosomal aberrations, resulting in heterogeneous and diverse clinical phenotypes. Vigilance must be exercised when seeing cases with subtle clinical findings. This report suggests that in selected cases of adult hypergonadotropic hypogonadism, chromosomal analysis may be indicated.


Subject(s)
Gynecomastia , Hypogonadism , Klinefelter Syndrome , Humans , Male , Aged , Chromosome Aberrations , Hypogonadism/diagnosis , Hypogonadism/genetics , Klinefelter Syndrome/diagnosis , Klinefelter Syndrome/genetics , Karyotyping
17.
Pathol Res Pract ; 245: 154434, 2023 May.
Article in English | MEDLINE | ID: mdl-37086632

ABSTRACT

BACKGROUND: Around 15% of couples of childbearing age suffer from infertility; in 50% of these cases, the male factor is present. In this study, we investigated the association between anti-ODF2 autoantibody existence and the DNA fragmentation and apoptosis of sperm in oligozoospermia men. MATERIAL AND METHODS: 35 fertile men and 57 oligozoospermia men are enrolled in this study as control and case groups, respectively. After the identification of ODF2 as a possible target of anti-sperm antibodies in sera of oligozoospermia men using two-dimensional gel electrophoresis followed by western blotting and mass spectrometry, the case group serums were screened for anti-ODF2 autoantibodies and divided into anti-ODF2 negative (N = 24) and positive (N = 33) subgroups to follow assays. The mRNA expression levels of ODF2, Caspases 3, 8, 9, BAX, and BCL-2 were evaluated via qRT-PCR in spermatozoa samples of mentioned groups. DNA fragmentation and apoptosis rate of spermatozoa in studied groups were assessed using an SDF kit and flow cytometry, respectively. RESULTS: Mass spectrometry showed that ODF2 is one of the anti-sperm antibodies targeted in oligozoospermia patients. 33 of 57 oligozoospermia men had anti-ODF2 autoantibody in their sera. An elevated expression of ODF2 mRNA was observed in spermatozoa of anti-ODF2+ patients compared to anti-ODF2- patients and controls. There was an increased expression level of Caspase 3, 8, 9, and BAX and decreased expression of BCL-2 in spermatozoa of anti-ODF2+ patients compared to anti-ODF2- patients and controls. Noticeable increases in DNA fragmentation and apoptosis rate of anti-ODF2+ patients' spermatozoa were observed compared to anti-ODF2- patients and healthy controls spermatozoa. A positive correlation was observed between ODF-2 expression and DNF fragmentation and apoptosis rate of anti-ODF2+ patients' spermatozoa. CONCLUSION: Our results revealed that ODF2 is one of the main spermatozoa structural proteins, which is one of the anti-sperm antibodies targets, and its dysregulated expression may result in an increased rate of sperm DNA fragmentation and apoptosis.


Subject(s)
Oligospermia , Humans , Male , Apoptosis/genetics , Autoantibodies , bcl-2-Associated X Protein , DNA Fragmentation , Oligospermia/genetics , RNA, Messenger , Spermatozoa
18.
Radiol Case Rep ; 18(3): 1353-1357, 2023 Mar.
Article in English | MEDLINE | ID: mdl-36712191

ABSTRACT

Tolosa-Hunt syndrome (THS) is a painful ophthalmoplegia due to non-specific granulomatous inflammation in the cavernous sinus region. It is diagnosed by the International Classification of Headache Disorders (ICHD)-3 criteria. We report the case of a young lady who presented with a right-sided headache for 2 weeks, followed by right-sided diplopia for 4 days. Clinical examination revealed right trochlear nerve palsy. Magnetic resonance imaging (MRI) of her brain showed abnormal thickening and postcontrast enhancement of the right orbital apex and superior orbital fissure, suggesting THS. Examination of cerebrospinal fluid (CSF) ruled out intracranial infection. The initial presentation satisfied the ICHD-3 criteria. Further imaging revealed cervical, axillary, and intra-abdominal lymphadenopathy with granulomatous lesions in the spleen and right kidney. Ultrasound (US)-guided axillary lymph node biopsy was positive for Mycobacterium tuberculosis. QuantiFERON TB gold plus test from serum was positive. Based on radiological and histopathological findings, a diagnosis of disseminated tuberculosis involving lymph nodes, kidneys, spleen, and lungs was made. THS is a diagnosis of exclusion. This case signifies that patients diagnosed with THS based on ICHD-3 criteria should be extensively evaluated to rule out granulomatous infections such as tuberculosis. Typical THS symptoms with granulomatous inflammation can give false reassurance to clinicians and prevent investigation for more dangerous etiologies. As painful ophthalmoplegia can arise secondary to a myriad of pathologies, diagnostic workups for all possibilities should be exhausted before arriving at a diagnosis of THS. Regardless of MRI findings, workups for tuberculosis and fungal infections should be completed.

19.
Cureus ; 14(10): e30701, 2022 Oct.
Article in English | MEDLINE | ID: mdl-36439603

ABSTRACT

Background Atherosclerotic cardiovascular disease (ASCVD) is the primary cause of death in Saudi Arabia. Hypercholesterolemia is a prevalent risk factor that can lead to ASCVD. The American College of Cardiology/American Heart Association (ACC/AHA) guidelines have provided recommendations for managing severe primary hypercholesterolemia, defined as medically well adults 21-75 years of age with low-density lipoprotein cholesterol (LDL-C) ≥190 mg/dL (≥4.9 mmol/L). Underutilization of the guideline recommendations has led to concern and the need for further review. This study aims to review the management of severe primary hypercholesterolemia in the Family Medicine and Polyclinics at King Faisal Specialist Hospital and Research Centre (KFSH&RC) in Riyadh, Saudi Arabia. Methodology In this retrospective cohort study, data were obtained from electronic medical records of patients aged 21-75 years who received care in the Family Medicine and Polyclinics at KFSH&RC in Riyadh with LDL-C ≥190 (≥4.9 mmol/L). The data collected included demographics, body mass index (BMI), LDL-C blood level, and lipid-lowering medications prescribed. We measured the prevalence of hypercholesterolemia, reviewed if appropriate statin therapy was prescribed as per the ACC/AHA guidelines, and determined if treated patients with severe primary hypercholesterolemia achieved LDL-C ≤100 mg/dL (≤2.6 mmol/L) from January 1, 2015, until June 30, 2020. Results The prevalence of hypercholesterolemia was 7.4%. The sample size studied included 195 patients. The majority of patients were aged 40-59 years and were either overweight or obese. Treatment with a moderate-intensity statin was observed in 46.4% of patients, and 45.4% of patients were not prescribed a statin. The LDL-C ≤100 mg/dL (≤2.6 mmol/L) was not achieved in 88.3% of patients. Conclusions Despite guidelines, the majority of patients with severe primary hypercholesterolemia are inadequately managed. High-risk patients need to be diagnosed appropriately so that they receive proper treatment to prevent ASCVD. We encourage adherence to established guidelines in the management of severe primary hypercholesterolemia to prevent premature ASCVD.

20.
Front Psychol ; 13: 955442, 2022.
Article in English | MEDLINE | ID: mdl-35911024

ABSTRACT

Background: Having a child with autism spectrum disorder can have significant psychological effects on parents. This systematic review summarizes the current state of literature underscoring the impact of autism spectrum disorder (ASD) on parents in Arab countries. Methods: A systematic search of seven databases (PubMed, Scopus, ProQuest, Google Scholar, ERIC, Academic Search Complete, and PsycINFO) was performed, which identified 24 studies (20 quantitative studies and four qualitative studies) that included 3,299 parents or caregivers of children with ASD. These studies were conducted in 10 Arab countries (Saudi Arabia, Jordan, Egypt, Kuwait, Bahrain, Oman, Emirates, Palestine, Qatar, and Lebanon). Results: The majority of the included studies found that ASD has a significant negative impact on the mental health and wellbeing of Arab parents. It was found that parents of children with ASD have a poor quality of life (QoL) and an increased risk of psychological disorders. These findings were in contrast to findings of parents of typically developing children and children with other developmental disorders. Challenges faced by parents of children with ASD were associated with several child- and parent-related factors. The most common coping strategy used by parents was religious coping. Conclusion: The impact of ASD on parents has only recently gained traction among researchers in Arab countries. Despite several knowledge gaps, published studies have provided useful information outlining the impact of ASD on parents in some of these countries. Further research comprising larger random samples and using varied research and data-collection methods is required to understand the multifaceted challenges experienced by parents raising children with ASD in Arab countries.

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