Publications by authors named "Ammar Ibrahim"

Water scarcity is a global concern that needs addressing through alternative sources. One of the approaches is the use of reclaimed water for irrigation. However, the presence of halogenated compounds and heavy metals in reclaimed water poses significant food safety threats.

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Background Soft tissue augmentation is a critical procedure in dental implantology aimed at improving peri-implant health and aesthetics. Various materials are used for this purpose, but their comparative effectiveness remains under-researched. This study aimed to evaluate the effects of soft tissue augmentation utilizing two different materials after tooth extraction on peri-implant clinical and radiographic outcomes.

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Objective: The aim of this study was to evaluate the effectiveness of a novel biomaterial (FG) for alveolar ridge preservation compared to CTG in terms of soft tissue thickness and bone dimensional changes.

Materials And Methods: A randomized clinical trial was conducted on 30 patients who required extraction of 30 hopeless mandibular posterior teeth. All patients went through atraumatic tooth extraction, and then, they were randomly allocated to either a CTG, an FG, or a spontaneous healing (SH) group (1:1:1).

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Acute Lung Injury (ALI) is a life-threatening syndrome that has been identified as a potential complication of COVID-19. There is a critical need to shed light on the underlying mechanistic pathways and explore novel therapeutic strategies. This study aimed to examine the potential therapeutic effects of essential oil (CCEO) in treating potassium dichromate (PDC)-induced ALI.

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A photoredox-catalyzed approach for the difluoroalkylation of amino acids was achieved through simultaneous decarboxylation and defluorination processes. This innovative protocol employs commonly available amino acids and trifluoroacetophenones as the primary starting materials, eliminating the necessity for preactivation. This strategy has enabled the synthesis of several difluoroketone functionalized amines in moderate to impressive yields.

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Background: Thyroid diseases can affect various bodily functions and often go unnoticed. Tools such as sonography and fine needle aspiration (FNA) puncture are necessary to diagnose diseases that require surgical intervention. These tools help identify signs of malignancy or benignity and obtain further data to guide therapeutic decisions.

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Article Synopsis
  • Current methods for metal-catalyzed cross-couplings usually need specific reactive groups on both reactants, making them complex.
  • C-H functionalization can simplify substrate preparation, but struggles with low reactivity and varying C-H bond similarities create challenges.
  • This study presents a new oxidative coupling method using di-butyl peroxide and zinc, effectively producing α-amino ketones from α-amino C-H bonds and aldehydes, supported by experimental and computational insights into the mechanism.
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  • The study seeks to enhance the productivity and quality of Eureka Lemon trees while cutting costs by exploring alternative NPK sources instead of traditional chemical fertilizers.
  • The experiment tested ten different NPK fertilizer treatments, revealing that 100% chemical NPK led to the highest yields and fruit quality metrics across both seasons.
  • The results showed that while chemical NPK consistently produced the best outcomes for yield, fruit size, and juice quality, it resulted in lower total sugar content in the lemons.
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Electrocatalytic nitrogen reduction (NR) mediated by well-defined molecular catalysts is poorly developed by comparison with other reductive electrocatalytic transformations. Herein, we explore the viability of electrocatalytic NR mediated by a molecular Mo-PNP complex. A careful choice of acid, electrode material, and electrolyte mitigates electrode-mediated HER under direct electrolysis and affords up to 11.

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Almost one-third of all infectious diseases are caused by viruses, and these diseases account for nearly 20% of all deaths globally. It is becoming increasingly clear that highly contagious viral infections pose a significant threat to global health and economy around the world. The need for innovative, affordable, and safe antiviral therapies is a must.

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The Dominican Republic has no recent data on type 1 diabetes (T1D) incidence in children. Therefore, a study was undertaken to determine this in persons aged <15 years (y). Data were collected on all new T1D diagnoses between 2010-2019 from the four institutions caring for children with T1D.

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To review the global and regional contributions of the Saint Elian Wound Score System (SEWSS) for the diabetic foot syndrome are the aim of this report. The update includes definitions, classification, diagnosis, treatment, prognosis, and prevention to reduce amputations and mortality. From its local use in Mexico to their global spread as part of the Clinical Practice Recommendations of the Diabetic Foot - International Diabetes Federation-2017, the SEWSS has achieved a significant acceptance for the diabetic foot problem care in Latin America.

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Food preservatives such as NaNO, which are widely used in human food products, undoubtedly affect, to some extent, human organs and health. For this reason, there is a need to reduce the hazards of these chemical preservatives, by replacing them with safe natural bio-preservatives, or adding them to synthetic ones, which provides synergistic and additive effects. The Citrus genus provides a rich source of such bio-preservatives, in addition to the availability of the genus and the low price of citrus fruit crops.

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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which caused the coronavirus (COVID-19), is the virus responsible for over 69,613,607 million infections and over 1,582,966 deaths worldwide. All treatment measures and protocols were considered to be supportive only and not curative. During this current coronavirus pandemic, searching for pharmaceutical or traditional complementary and integrative medicine to assist with prevention, treatment, and recovery has been advantageous.

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Introduction: Vertebral fractures (VF) are the most common osteoporotic fracture. They are associated with significant morbidity and mortality and are an important predictor of future fractures. The epidemiology of VF in Ireland is limited and a greater understanding of their scale and impact is needed.

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Bone mineral density (BMD) can be measured at multiple skeletal sites using various technologies to aid clinical decision-making in bone and mineral disorders. BMD by dual-energy X-ray absorptiometry (DXA) has a critical role in predicting risk of fracture, diagnosis of osteoporosis, and monitoring patients. In clinical practice, DXA remains the most available and best validated tool for monitoring patients.

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Aim: To identify the demographic and clinical characteristics of Dominican adults admitted to a diabetic foot clinic and compare these characteristics by sex to better characterize and understand the severity of diabetes in the Dominican Republic.

Methods: We conducted a retrospective medical chart review of Dominican adults admitted to the National Institute of Diabetes, Endocrinology, and Nutrition's (INDEN) diabetic foot clinic between January 1st, 2015 and December 31st, 2015. We generated descriptive statistics and compared results by sex.

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In this work, anatase/rutile mixed phase titanium dioxide (TiO₂) particles prepared via sonochemical combined with calcination process was immobilized on borosilicate glass beads via sol-gel dip coating technique utilizing titanium tetraisopropoxide (TTIP). The optical properties of mixed phase TiO₂ was evaluated by diffuse reflectance UV-Vis spectrophotometer to confirm phase transformation of anatase to rutile phase at different calcination temperatures. Phase identification and structural properties of TiO₂ particles were analyzed using X-ray diffraction (XRD) and transmission electron microscopy (TEM).

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The aim of this study was to determine the risk of infection in adults with inflammatory rheumatic diseases (IRDs) treated with methotrexate. We performed a systematic review and meta-analysis of randomized controlled trials (RCTs) assessing methotrexate versus placebo in adults using MEDLINE, EMBASE, and CENTRAL databases from 1980 to August 2017. The primary outcome was the risk of infection associated with methotrexate therapy.

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Article Synopsis
  • The research examines the teratogenic effects of chitosan oligosaccharide on Wistar female rats during organogenesis, specifically between the 6th and 15th day of gestation.
  • High and low doses of chitosan were administered orally, and the study focused on assessing various fetal development parameters such as anomalies and measurements.
  • Results indicated that chitosan has toxic and teratogenic effects, leading to increased fetal mortality and various abnormalities in the offspring.
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Introduction: Stress-induced (Takotsubo) cardiomyopathy is a rare form of cardiomyopathy which presents in a manner similar to that of acute coronary syndrome. This sometimes leads to unnecessary thrombolysis therapy. The pathogenesis of this disease is still poorly understood.

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