Publications by authors named "Zain A"

This study analyzed 1432 questions asked in 19 surveys ( = 43,014) on COVID-19 vaccines between January 2020 and August 2022 using dimensions including (1) information sources about COVID-19 vaccine, (2) information about the access, effectiveness, and side effects of COVID-19 vaccine, (3) COVID-19 vaccine hesitancy (i.e. false perception, skepticism, and vaccine refusal), (4) motivations to get the COVID-19 vaccine (i.

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Background: Nonalcoholic fatty liver disease (NAFLD) is increasingly concerning due to its rising prevalence. It encompasses conditions from simple steatosis to severe nonalcoholic steatohepatitis (NASH), posing risks such as fibrosis, cirrhosis, or hepatocellular carcinoma if untreated. This systematic review and meta-analysis aims to assess aldafermin, an FGF19 analog, for efficacy and safety in NASH patients.

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Article Synopsis
  • Myasthenia gravis (MG) is a disease that makes muscles weak and can lead to a serious problem called myasthenic crisis, which affects breathing.
  • Two treatments for this crisis are intravenous immunoglobulins (IVIg) and plasmapheresis (PLEX), but it's hard to determine which one works better.
  • The choice of treatment depends on the patient's situation, available resources, and doctor's opinion, and more research is needed to create clear guidelines for helping patients.
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Aim: This case series was to describe the use of surgical extrusion for three different cases as a technique to re-establish the biological width in patients with insufficient crown height.

Background: Surgical extrusion serves as an important means to reestablishing a proper biological width. Such method provides an excellent alternative for the restoration of teeth with insufficient ferrule and ensuring a suitable dental restoration.

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Article Synopsis
  • - Sickle cell disease (SCD) is a hereditary blood disorder that leads to chronic pain, anemia, and various health complications, but advancements in treatments have improved patient outcomes over time.
  • - Despite progress, challenges like limited access to stem cell transplants and complications from current therapies highlight the need for ongoing research in SCD treatments.
  • - The recent FDA approval of Casgevy, a CRISPR/Cas9-based gene therapy, represents a significant step in SCD treatment, with the review focusing on its potential effectiveness and safety compared to traditional methods, emphasizing the need for long-term research.
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Purpose: Secondary caries around ceramic restorations is the most common reason for the replacement of fixed dental prostheses (FDPs). Therefore, it is important to examine the susceptibility of different ceramic materials to biofilm formation. This study aimed to evaluate biofilm development and associated roughness and color alterations in three lithium disilicate ceramics: Emax CAD (EC), Emax Press (EP), and LiSi Press (LP).

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This study explores the effect of using dental brushes with or without metacrylate-based modeling resins on long-term color stability and surface topographies of resin-based composites. This study examined the effects of two variables: (1) the type of brush used (Art brush, Micro-brush, or Mylar strip) and (2) the application of a modeling resin (applied or not applied). The specimens were artificially aged through 10,000 cycles of thermocycling and subsequently immersed in coffee for 30 days.

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Difenoconazole-loaded (CS-DIF) microcapsules were synthesized by encapsulating difenoconazole into biocompatible chitosan. The physical and chemical properties indicated that the encapsulation and chemical loading rates were 85.58% and 61.

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Objectives: The objective of this in vitro study was to evaluate the effects of different preparation designs on the mean colour change (ΔE), marginal adaptation, fracture resistance, and fracture types of maxillary and mandibular premolar endocrowns (ECs).

Methodology: A total of 40 extracted maxillary and mandibular premolars were treated endodontically, and each type was subdivided according to the remaining axial height (remaining walls on all surfaces; 2-4 mm) and 2 mm inside the pulp chamber. Specimens were immersed in coffee for 14 days, ΔE was determined, marginal adaptation was observed, fracture forces test was conducted, and the samples were examined visually at 10× magnification to evaluate failure type and identify fracture origin.

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Allergic diseases such as asthma, atopic dermatitis, and food allergies are a burgeoning health challenge in the Asia-Pacific region. Compounding this, the region has become increasingly susceptible to the impacts of climate change. The region has weathered extreme precipitation, intense heat waves, and dust storms over the recent decades.

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Introduction: Splenic artery aneurysm (SAA) is a focal dilation of the splenic artery with varying etiologies including atherosclerosis, arteritis, or trauma. Giant SAAs with a diameter of 10 cm is rare and can lead to severe complications like rupture and fistulas. Therefore, an accurate and timely diagnosis and treatment are important.

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Objective: This study evaluated the completeness and accuracy of information in LCU instruction manuals from 40 manufacturers.

Materials And Methods: Instruction manuals from 40 LCUs (20 from leading manufacturers and 20 budget units) were reviewed. Twenty-eight parameters across five categories were assessed using a binary scale (0=incorrect/missing, 1=correct).

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This study investigated the impact of 'storage condition' and 'period of storage' on selected physico-mechanical properties and fracture reliability of a resin-based composite (RBC). Specimens, prepared from a nanofilled RBC (Filtek Z350 XT; 3M ESPE), underwent tests for degree of conversion (DC), flexural strength (σ), flexural modulus (E), and hardness. The specimens were initially grouped into dry storage at 37°C or wet storage in distilled water at 37°C.

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Background And Objectives: Metformin is one of the primary pharmacologic agents for managing type 2 diabetes mellitus (T2DM). However, it has been associated with interference in vitamin B12 absorption and deficiency. Vitamin B12 deficiency and T2DM can present diagnostic challenges for polyneuropathy.

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Introduction: Unplanned readmissions can be avoided by standardizing and improving the coordination of care after discharge. Telemedicine has been increasingly utilized; however, the quality of this care has not been well studied. Standardized measures can provide an objective comparison of care quality.

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Climate change, particularly increasing temperature, changes in rainfall, extreme weather events and changes in vector ecology, impacts the transmission of many climate-sensitive infectious diseases. Asia is the world's most populous, rapidly evolving and diverse continent, and it is already experiencing the effects of climate change. Climate change intersects with population, sociodemographic and geographical factors, amplifying the public health impact of infectious diseases and potentially widening existing disparities.

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Objectives: To design and develop a classifier, named Sewing Driving Training based Optimization-Deep Residual Network (SDTO_DRN) for hand gesture recognition.

Methods: The electrical activity of forearm muscles generates the signals that can be captured with Surface Electromyography (sEMG) sensors and includes meaningful data for decoding both muscle actions and hand movement. This research develops an efficacious scheme for hand gesture recognition using SDTO_DRN.

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BACKGROUND Preshaded monolithic zirconia (MLZ) is reported to have high translucency. This study aimed to assess the effect of chlorhexidine gluconate (ChG) mouthwash on color and translucency parameter (TP) of 2 different preshaded MLZ dental ceramics after clinical adjustment. MATERIAL AND METHODS Two MLZ disk-shaped specimens [NPM (Nacera Pearl Multi-Shade) (n=72) and CZM (Ceramill Zolid FX Multilayer)] (n=72) were simulated for clinical adjustment, finished, and polished using 2 adjustment kits [recommended kit, third-party kit: Diasynt Plus and SUN (n=12 each)] and later immersed in ChG mouthwash (Avohex) for 2 weeks.

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Background: Climate change is the greatest threat to human health. Cardiothoracic patients suffer direct consequences from poor environmental health and we have a vested interest to address this in our practice. As leaders of complex high-end surgery, we are uniquely positioned to effect practical and immediate changes to significantly pare down emissions within the operating theatre, outside the operating theatre and beyond the confines of the hospital.

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Objectives: The aim was to compare the porosity of different bulk-fill resin-based composites (RBCs) placement techniques to the conventional incremental technique using microcomputed tomography (μ-CT).

Material And Methods: Occlusal cavities were prepared on extracted human molars, divided into five groups based on the placement technique (n = 10/group). Techniques examined were Monoblock-two-step (SureFil SDR flow + Ceram.

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Background: Proper light curing is crucial for the success of restorative dentistry and to bond brackets to teeth, yet the responsibility is often delegated to dental assistants (DAs). This study assessed the proficiency and maintenance protocols of DAs when using light-curing units (LCUs) in Saudi Arabia.

Methods: Self-administered questionnaires were distributed to practicing DAs.

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Inverted duplications, also known as foldback inversions, are commonly observed in cancers and are the major class of chromosome rearrangement recovered from yeast cells lacking Mre11 nuclease activity. Foldback priming at DNA double-strand breaks (DSBs) is one mechanism proposed for the generation of inverted duplications. However, the other pathway steps have not been fully elucidated.

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Objectives Cholelithiasis poses a considerable medical burden worldwide. While its pathogenesis is multifactorial, identifying the key risk factors is essential for understanding the disease and improving patient care. This study aims to investigate the potential associations between demographic, clinical, and laboratory variables and the development of cholelithiasis.

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