Publications by authors named "Ayman Zayed"

Objective: An assay artifact known as the "hook effect" causes spuriously low serum prolactin levels. This systematic review aimed to examine clinical reports on the "hook effect" in patients with macroprolactinomas to describe associated clinical features.

Methods: We systematically searched multiple databases from database inception to April 16, 2024 for case reports, case series, or observational studies of macroprolactinomas presenting with the hook effect.

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Purpose: The association between papillary thyroid cancer (PTC) and Hashimoto's thyroiditis (HT) remains a matter of debate. Several genetic and environmental factors have been found to influence this association. Because of the variation in these factors among different populations, we conducted a country- and region-based meta-analysis to examine whether the geographic area influences this association.

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Methods: The study was conducted by distributing the Center for Epidemiological Studies Depression Scale for Children (CES-DC) to adolescents with T1D seen at Jordan University Hospital between February 2019 and February 2020. Demographic, clinical, and socioeconomic data were collected using electronic clinical charts. Possible predictors of depression were assessed using logistic regression analysis.

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is one of the most common genes causing autosomal recessive non-syndromic sensorineural hearing loss (SNHL). It has been reported to cause Pendred Syndrome (PDS) and DFNB4 which is deafness with enlarged vestibular aqueduct (EVA). However, mutated is not conclusive for having either DFNB4 or PDS.

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Introduction: Subcutaneous insulin resistance syndrome (SIRS) is a rare condition in which patients poorly respond to subcutaneous (SC) insulin but maintain a normal response to intravenous (IV) insulin. The underlying pathophysiology remains elusive. Several treatment regimens have been tested for the management of SIRS, none of which included a sodium-glucose cotransporter-2 inhibitor (SGLT-2).

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Background: The serum insulin-like growth factor-1 (IGF-1)/insulin-like growth factor binding protein-3 (IGFBP-3) ratio has various potential applications in growth hormone-related disorders. This study aimed to investigate the performance of the IGF-1/IGFBP-3 ratio, independently and in combination with serum IGF-1 and IGFBP-3, in the diagnosis of growth hormone deficiency (GHD) in children with short stature (SS).

Methods: A 7-year cross-sectional observational study was conducted on 235 children with SS.

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Rationale: The occurrence of subacute thyroiditis (SAT) after vaccines or after hyaluronic acid skin fillers is very rare and might be related to genetic susceptibility. We suggest that the co-administration of both products could potentially increase the possibility of development of SAT.

Patient Concerns: A 58-year-old Caucasian healthy female initially presented with chills, myalgia, dysphagia, sore throat, dry cough, fatigue, and intermittent fever of 38.

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Article Synopsis
  • The study aimed to explore how reducing medication doses for diabetes affects the risk of glycemic issues in individuals fasting during Ramaḍān.
  • Conducted in Amman, Jordan, 687 type 2 diabetes patients were randomly assigned to either low or regular medication doses; 678 completed the trial to evaluate incidences of hypoglycemia and hyperglycemia.
  • Results showed that those on lower doses had significantly fewer hypoglycemic episodes while hyperglycemia rates were similar between the two groups, highlighting the safety of dosage reduction during fasting.
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Background: Diabetic peripheral neuropathy (DPN) is the most common type of diabetic neuropathy. It accounts for significant morbidity, including lower extremity amputations. There are few studies on the prevalence of DPN among Palestinian refugees in Jordan.

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Objectives: The 2015 American Thyroid Association (ATA) guidelines called for significantly more selective I therapy in patients with low-risk differentiated thyroid cancer (DTC). We hypothesized that application of these guidelines would significantly reduce the I activity utilized by an academic tertiary hospital in Jordan.

Methods: All DTC patients managed at Jordan University Hospital (JUH) between 1/2009 and 6/2019 were classified according to the 2015 ATA risk category and I activity was assigned accordingly.

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Context: Papillary thyroid carcinoma (PTC) is the most common type of nonmedullary thyroid carcinoma. Uncommonly, PTC is associated with multiple genetic alterations and chromosomal abnormalities and displays familial patterns of inheritance. Parental consanguinity increases susceptibility to many genetic disorders.

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Background: Several genome-wide association studies (GWAS) have identified the single nucleotide polymorphism (SNP) rs13266634 in the Solute carrier family 30 member 8 (SLC30A8) gene as a risk factor to type 2 diabetes mellitus (T2DM). Nevertheless, other studies reported controversial findings of no significant association between the rs13266634 with T2DM. In this study, we aimed to investigate the association of this SNP with T2DM among Jordanian population in addition to define its corresponding allelic and genotypic frequencies.

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Atorvastatin is commonly used among type 2 diabetic (DM2) patients at the University of Jordan Hospital to prevent cardiovascular complication. However, we noticed that there is a wide inter-individual variation in the efficacy and toxicity of atorvastatin. This study aimed to find out the effects of major genetic variants in 3-Hydroxy-3-Methylglutaryl-CoA Reductase (HMGCR), Apolipoprotein E (APOE), and Solute Carrier Organic Anion (SLCO1B1) genes on atorvastatin response among DM2 patients.

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Subacute thyroiditis (SAT) is one of the most common causes of thyrotoxicosis. Thyroid scans with radioiodine or technetium-99m pertechnetate (99mTc) are often performed in the workup of patients with thyrotoxicosis, particularly to differentiate between SAT and Graves's disease. Although very helpful, thyroid scans are prone to pitfalls that may occasionally lead to misdiagnosis.

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Background And Objective: APOE has an important role in lipids metabolism, and in the variability in low density lipoprotein (LDL) response to statins treatment between individuals. In this study, we aim to investigate the association between APOE polymorphism and response to statins in Jordanian hyperlipidemic patients at the diabetic clinic of Jordan University Hospital.

Methods: One hundred and fifty two Jordanian Hyperlipidemic patients (52 males and 100 females) aged between 35-75 years were enrolled in this study.

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Differentiated thyroid cancer (DTC) is the most common endocrine malignancy with a growing incidence worldwide. The initial conventional management is surgery, followed by consideration of I treatment that includes three options. These are termed remnant ablation (targeting benign thyroid remnant), adjuvant (targeting presumed microscopic DTC) and known disease (targeting macroscopic DTC) treatments.

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To investigate the effect of age and gender on basal and food-stimulated serum calcitonin (CT), parathyroid hormone (PTH), and gastrin levels among healthy adults. Ninety-six healthy adults (76 men and 20 women) aged between 21 and 43 years were recruited. Serum CT, PTH, and gastrin levels were measured after a 9-hour overnight fast, and 1 and 3 hours postprandially.

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Objectives: This open label, phase I clinical trial (NCT02945462) using 2 consecutive intracavernous autologous bone marrow-derived mesenchymal stem cells (BM-MSCs) for the first time in the treatment of diabetic patients with erectile dysfunction (ED). The primary outcome is to assess the safety and tolerability of intracavernous autologous BM-MSCs, the secondary outcome is to assess efficacy of the procedure.

Patients And Methods: Four diabetic patients with refractory ED were included.

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