Publications by authors named "Arif Khan"

An 18-month-old girl was evaluated because of a 2-month history of right head turn with right eyelid redness. Orthoptic evaluation was significant for a large right head turn (left gaze preference) and mild right upper lid swelling. With her abnormal head position there was no strabismus, but it was not possible to coax her into bringing the eyes to primary position or right gaze.

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Percutaneous coronary intervention carries a risk of iatrogenic catheter dissection. A spiral aorto-ostial dissection can completely occlude the vessel and cause ischemia with significant hemodynamic compromise. The mortality from such dissections is approximately 6.

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This review explores the transformative potential of Bacterial cellulose (BC) in an increasingly vital avenue of transdermal drug delivery systems (TDDS) for multi-scale therapeutic applications with patient-centric approach. In this review, we have not only highlighted the role of BC as the main matrix material for TDDS but emphasized the other possible role that BC can play in TDDS. For this purpose, we have delved into the avenues of the physico-chemical interactions that BC can offer in governing the incorporation of different length-scales of therapeutics as well as tuning their extent of loading.

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Objectives: This study aimed to increase the understanding of healthcare stakeholders' viewpoints on the challenges and potential solutions regarding healthcare financing for the Rohingya refugees in Cox's Bazar.

Design: A mixed-method approach, containing semi-structured interviews with healthcare stakeholders and review of financial documents, was employed. Thematic analysis was performed to analyse the transcripts.

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In the face of rising the threat of resistant pathogens, antimicrobial peptides (AMPs) offer a viable alternative to the current challenge due to their broad-spectrum activity. This study focuses on enhancing the efficacy of temporin-SHa derived NST-2 peptide (), which is known for its antimicrobial and anticancer activities. We synthesized new analogs of using three strategies, i.

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Introduction: Round atrophic macular scars with a hyperpigmented rim in an otherwise healthy child are characteristic for prior ocular toxoplasmosis infection, the most common etiology of self-resolved retinitis in immunocompetent patients. However, a specific homozygous gene mutation (NM_148960: :c.263T>A; p.

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One of the biggest challenges encountered by the current generation is the evolution of antibiotic resistant bacteria as a result of excessive and inappropriate use of antibiotics. This problem has led to the development of alternative approaches to treat the diseases caused by these multidrug resistant bacteria (MDR). One of the most promising and novel approaches to combat these pathogens is utilization of nanomaterials as antimicrobial agents.

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Article Synopsis
  • SARS-CoV-2, the virus responsible for COVID-19, causes serious health issues primarily affecting the lungs and the cardiovascular system, leading to complications like acute respiratory distress syndrome (ARDS).
  • Many people infected with the virus experience mild symptoms, but severe cases can result in serious respiratory complications and a higher risk of death.
  • This review aims to explore how SARS-CoV-2 affects different parts of the respiratory system and the long-term consequences of the infection, especially the risk of developing chronic lung fibrosis in COVID-19 survivors.
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Excessive deposition of fibrillar collagen in the interstitial extracellular matrix (ECM) of human lung tissue causes fibrosis, which can ultimately lead to organ failure. Despite our understanding of the molecular mechanisms underlying the disease, no cure for pulmonary fibrosis has yet been found. We screened a drug library and found that dextromethorphan (DXM), a cough expectorant, reduced the amount of excess fibrillar collagen deposited in the ECM in cultured primary human lung fibroblasts, a bleomycin mouse model, and a cultured human precision-cut lung slice model of lung fibrosis.

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Purpose: Biliary tract cancers (BTCs) are usually diagnosed in advanced stages, where treatment options are either palliative chemotherapy and/or best supportive care. The breakthrough results of the TOPAZ-1 trial demonstrated a 24% decrease in risk of death at 2 years with the addition of durvalumab to chemotherapy.

Materials And Methods: This was a multicenter retrospective cohort study conducted across 14 institutions in India.

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Background: Founder variants are ancestral variants shared by individuals who are not closely related. The large effect size of some of these variants in the context of Mendelian disorders offers numerous precision medicine opportunities.

Methods: Using one of the largest datasets on Mendelian disorders in the Middle East, we identified 2,908 medically relevant founder variants derived from 18,360 exomes and genomes and investigated their contribution to the clinical annotation of the human genome.

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Objective: The study was aimed at the synthesis and pharmacological investigation of (4Z)-4-(2-hydroxybenzylidine)-5-methyl-2-(pyridine-3-ylcarbonyl)-2, 4-dihydro-3H-pyrazole-3-one (IIc) in mice model of scopolamine-induced neurodegeneration and cognition impairment.

Methods: The behavioural studies included Y-Maze Test, Water Morris Test, and Novel Object Recognition Test in Albino mice (20-25 g). Scopalamine was used as an inducing agent.

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We report the case of a 7-year-old girl with Knobloch syndrome who presented with retinal detachment due to a macular hole, which was treated with vitrectomy and silicone oil tamponade. The macular hole persisted, and recurrent silicone oil emulsification required exchanges, with two subsequent vitrectomies. Finally, an amniotic membrane graft was used to seal the macular hole in an effort to avoid silicone oil dependence for retinal attachment.

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Antimicrobial peptides (AMPs) are a promising class of therapeutic alternatives with broad-spectrum activity against resistant pathogens. Small AMPs like temporin-SHa () and its first-generation analog [G10a]-SHa () possess notable efficacy against Gram-positive and Gram-negative bacteria. In an effort to further improve this antimicrobial activity, second-generation analogs of were synthesised by replacing the natural glycine residue at position-10 of the parent molecule with atypical amino acids, such as D-Phenylalanine, D-Tyrosine and (2-Naphthyl)-D-alanine, to study the effect of hydrophobicity on antimicrobial efficacy.

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With the rapid development of micro/nano machining, there is an elevated demand for high-performance microdevices with high reliability and low cost. Due to their outstanding electrochemical, optical, electrical, and mechanical performance, carbon materials are extensively utilized in constructing microdevices for energy storage, sensing, and optoelectronics. Carbon micro/nano machining is fundamental in carbon-based intelligent microelectronics, multifunctional integrated microsystems, high-reliability portable/wearable consumer electronics, and portable medical diagnostic systems.

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Purpose: Achromatopsia (ACHM) is a genetically heterogenous relatively stationary congenital autosomal recessive cone disorder characterized typically by photophobia, low vision, nystagmus, hyperopia, grossly normal retinal appearance, and absent photopic responses by full-field electroretinography. Incomplete forms occur as well. This study investigates the genetic basis of clinically suspected ACHM in the United Arab Emirates.

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Amongst the neglected tropical diseases, leishmaniasis alone causes 30 000 deaths annually due to the protozoan parasite genus . Existing therapies have serious drawbacks in safety, drug resistance, field-adapted application and cost. Therefore, new safer and shorter treatments are an urgent need of the time.

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Purpose: Usher syndrome, a common form of syndromic inherited retinal dystrophy in the Arabian Gulf, has not been molecularly defined in the United Arab Emirates. The current study addresses this gap in knowledge.

Methods: A retrospective case series of Emirati patients referred to the Ocular Genetics Clinic of Cleveland Clinic Abu Dhabi who (1) were clinically diagnosed with Usher syndrome and underwent genetic testing (whole exome sequencing, 2019 to 2023, inclusive) and (2) were identified to have biallelic pathogenic variants in Usher syndrome genes during the same time period.

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Article Synopsis
  • * A case report details a 6-year-old girl developing keratitis and dermatitis after receiving adalimumab for chronic recurrent multifocal osteomyelitis.
  • * The symptoms improved after discontinuing adalimumab and starting topical steroids.
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Objective: Identification of MBL, AmpC and ESBLs in colistin intrinsic and acquired resistant uropathogenic gram negative bacteria.

Method: Urine samples were collected from Hayatabad Medical Complex, Peshawar during 17 January to 30 June 2019. Collected urine samples were aseptically transported microbiology lab of Health Research Institution (HRI), National Institute of Health (NIH), Khyber Medical College, Peshawar and streaked on different media.

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Metal-oxide-based gas sensors are extensively utilized across various domains due to their cost-effectiveness, facile fabrication, and compatibility with microelectronic technologies. The copper (Cu)-based multifunctional polymer-enhanced sensor (CuMPES) represents a notably tailored design for non-invasive environmental monitoring, particularly for detecting diverse gases with a low concentration. In this investigation, the Cu-CuO/PEDOT nanocomposite was synthesized via a straightforward chemical oxidation and vapor-phase polymerization.

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Article Synopsis
  • Dengue fever is a major global health issue, causing severe symptoms and outbreaks in India, influenced by a cytokine storm and increased risk in secondary infections.
  • A study in Aligarh assessed dengue prevalence and analyzed the role of specific cytokines (CXCL5, CXCL9, CCL17) in primary vs. secondary infections, finding higher levels in secondary cases.
  • Identifying these cytokines early may help in diagnosing severe dengue and adjusting treatment strategies.
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Background: Smokeless tobacco (SLT) consumption poses a significant global public health challenge because of its adverse effects on oral health. Although the detrimental impact of SLT on oral tissues is well-documented, understanding its multifaceted effects is essential for effective prevention and intervention strategies.

Objective: This study aimed to comprehensively assess the impact of SLT on oral health, focusing on various clinical parameters and their differences between placement and non-placement sites of SLT.

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