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  1. Article: Comparing Efficacy and Safety of Different Doses of Tirzepatide for the Treatment of Type 2 Diabetes Mellitus: A Meta-Analysis of Randomized Controlled Trials.

    Khan, Zarghuna / Naeem, Muhammad O / Khan, Saad Khalid / Khan, Faisal / Abdullah, Muhammad / Attique, Ilqa / Dur Muhammad, Sana / Amin, Adil

    Cureus

    2023  Volume 15, Issue 8, Page(s) e44314

    Abstract: Our study assessed the efficacy and safety of the three primary tirzepatide (TZP) doses, 5 mg, 10 mg, and 15 mg using network meta-analysis to assess their relative impact on type 2 diabetes mellitus (T2DM) treatment. This study adhered to the Preferred ... ...

    Abstract Our study assessed the efficacy and safety of the three primary tirzepatide (TZP) doses, 5 mg, 10 mg, and 15 mg using network meta-analysis to assess their relative impact on type 2 diabetes mellitus (T2DM) treatment. This study adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines. Two authors independently screened online databases, including PubMed, Cochrane Library, and Embase. We employed the keywords "Type 2 diabetes OR T2DM or diabetes" AND "Tirzepatide OR LY3298176 OR twincretin OR dual glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1 receptor agonist" AND "randomized controlled trial". The outcomes evaluated in this study comprised changes in hemoglobin (Hb)A1c levels from baseline (%), changes in weight from baseline (Kg), changes in fasting serum glucose from baseline (mg/dL), and occurrences of serious adverse events (SAE), adverse events (AE) and major adverse cardiovascular events (MACE). A total of eight studies met the inclusion criteria and were included in this meta-analysis. Our findings suggest that among the evaluated doses, TZP at 15 mg demonstrated superior effectiveness in reducing HbA1c, weight, and fasting serum glucose compared to doses of 10 mg and 5 mg. Notably, the reduction in HbA1c and weight showed a dose-dependent trend, with the 15 mg dose achieving the most substantial benefits. The safety analysis indicated that while serious adverse events and major adverse cardiovascular events (MACE) did not significantly differ among the three doses, the risk of overall adverse events was notably higher in the 10 mg and 15 mg TZP groups compared to the 5 mg group.
    Language English
    Publishing date 2023-08-29
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.44314
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Super-resolution imaging and quantification of megakaryocytes and platelets.

    Khan, Abdullah O / Pike, Jeremy A

    Platelets

    2020  Volume 31, Issue 5, Page(s) 559–569

    Abstract: Recent advances in super-resolution (sub-diffraction limited) microscopy have yielded remarkable insights into the nanoscale architecture and behavior of cells. In addition to the capacity to provide sub 100 nm resolution, these technologies offer unique ...

    Abstract Recent advances in super-resolution (sub-diffraction limited) microscopy have yielded remarkable insights into the nanoscale architecture and behavior of cells. In addition to the capacity to provide sub 100 nm resolution, these technologies offer unique quantitative opportunities with particular relevance to platelet and megakaryocyte biology. In this review, we provide a short introduction to modern super-resolution microscopy, its applications in the field of platelet and megakaryocyte biology, and emerging quantitative approaches which will allow for unprecedented insights into the biology of these unique cell types.
    MeSH term(s) Blood Platelets/cytology ; Blood Platelets/metabolism ; Diagnostic Imaging/methods ; Humans ; Megakaryocytes/cytology ; Megakaryocytes/metabolism
    Language English
    Publishing date 2020-02-21
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1034283-7
    ISSN 1369-1635 ; 0953-7104
    ISSN (online) 1369-1635
    ISSN 0953-7104
    DOI 10.1080/09537104.2020.1732321
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Mechanisms of inhibition of advanced glycation product (AGE) and α-glucosidase by Heliotropium bacciferum: Spectroscopic and molecular docking analysis.

    Al-Bagmi, Moneera Saud / Alokail, Majed S / Alenad, Amal M / Alnaami, Abdullah M / Abuelgassim, Abuelgassim O / Khan, Mohd Shahnawaz

    International journal of biological macromolecules

    2024  , Page(s) 131609

    Abstract: Diabetes mellitus is characterized by hyperglycemia that makes insulin more prone to glycation and form advanced glycation end products (AGEs). Here, we report the effect of glyoxal (GO) on the formation of AGEs using human insulin as model protein and ... ...

    Abstract Diabetes mellitus is characterized by hyperglycemia that makes insulin more prone to glycation and form advanced glycation end products (AGEs). Here, we report the effect of glyoxal (GO) on the formation of AGEs using human insulin as model protein and their structural modifications. The present investigation also reports the anti-AGE potential of Heliotropium bacciferum (Leaf) extracts. The phytochemical analysis of H. bacciferum revealed that free phenolic extract contains higher amount of total phenolic (3901.58 ± 17.06 mg GAE/100 g) and total flavonoid content (30.41 ± 0.32 mg QE/100 g) when compared to bound phenolic extract. Naringin and caffeic acid were identified as the major phenolic ingredients by UPLC-PAD method. Furthermore, bound phenolics extract showed significantly higher DPPH and superoxide radicals scavenging activity (IC
    Language English
    Publishing date 2024-04-13
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2024.131609
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Subacute Stent Thrombosis in a Patient With COVID-19 Despite Adherence to Antiplatelets.

    Elkholy, Karim O / Khizar, Asma / Khan, Abdullah / Hakobyan, Narek / Sahni, Sonu

    Cureus

    2021  Volume 13, Issue 2, Page(s) e13194

    Abstract: The coronavirus disease 2019 (COVID-19) creates a significant burden on the cardiovascular system. Moreover, diagnosing coronary artery disease in patients with COVID-19 may be clinically challenging. Herein, we present a case of in-hospital stent ... ...

    Abstract The coronavirus disease 2019 (COVID-19) creates a significant burden on the cardiovascular system. Moreover, diagnosing coronary artery disease in patients with COVID-19 may be clinically challenging. Herein, we present a case of in-hospital stent thrombosis and thrombotic occlusion of the right coronary artery after initial revascularization and adherence to antiplatelet therapy.
    Language English
    Publishing date 2021-02-07
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.13194
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Generating human bone marrow organoids for disease modeling and drug discovery.

    Olijnik, Aude-Anais / Rodriguez-Romera, Antonio / Wong, Zoë C / Shen, Yuqi / Reyat, Jasmeet S / Jooss, Natalie J / Rayes, Julie / Psaila, Bethan / Khan, Abdullah O

    Nature protocols

    2024  

    Abstract: The bone marrow supports and regulates hematopoiesis, responding to physiological requirements for blood cell production over ontogeny and during pathological challenges. Interactions between hematopoietic cells and niche components are challenging to ... ...

    Abstract The bone marrow supports and regulates hematopoiesis, responding to physiological requirements for blood cell production over ontogeny and during pathological challenges. Interactions between hematopoietic cells and niche components are challenging to study mechanistically in the human context, but are important to delineate in order to explore the pathobiology of blood and bone marrow disorders. Organoids are proving transformative in many research settings, but an accurate human bone marrow model incorporating multiple hematopoietic and stromal elements has been lacking. This protocol describes a method to generate three-dimensional, multilineage bone marrow organoids from human induced pluripotent stem cells (hiPSCs), detailing the steps for the directed differentiation of hiPSCs using a series of cytokine cocktails and hydrogel embedding. Over 18 days of differentiation, hiPSCs yield the key lineages that are present in central myelopoietic bone marrow, organized in a well-vascularized architecture that resembles native hematopoietic tissues. This presents a robust, in vitro system that can model healthy and perturbed hematopoiesis in a scalable three-dimensional microenvironment. Bone marrow organoids also support the growth of immortalized cell lines and primary cells from healthy donors and patients with myeloid and lymphoid cancers, including cell types that are poorly viable in standard culture systems. Moreover, we discuss assays for the characterization of organoids, including interrogation of pathogenic remodeling using recombinant TGF-ß treatment, and methods for organoid engraftment with exogenous cells. This protocol can be readily adapted to specific experimental requirements, can be easily implemented by users with tissue culture experience and does not require access to specialist equipment.
    Language English
    Publishing date 2024-03-26
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2244966-8
    ISSN 1750-2799 ; 1754-2189
    ISSN (online) 1750-2799
    ISSN 1754-2189
    DOI 10.1038/s41596-024-00971-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A comprehensive bioinformatic analysis of 126 patients with an inherited platelet disorder to identify both sequence and copy number genetic variants.

    Almazni, Ibrahim / Stapley, Rachel J / Khan, Abdullah O / Morgan, Neil V

    Human mutation

    2020  Volume 41, Issue 11, Page(s) 1848–1865

    Abstract: Inherited bleeding disorders (IBDs) comprise an extremely heterogeneous group of diseases that reflect abnormalities of blood vessels, coagulation proteins, and platelets. Previously the UK-GAPP study has used whole-exome sequencing in combination with ... ...

    Abstract Inherited bleeding disorders (IBDs) comprise an extremely heterogeneous group of diseases that reflect abnormalities of blood vessels, coagulation proteins, and platelets. Previously the UK-GAPP study has used whole-exome sequencing in combination with deep platelet phenotyping to identify pathogenic genetic variants in both known and novel genes in approximately 40% of the patients. To interrogate the remaining "unknown" cohort and improve this detection rate, we employed an IBD-specific gene panel of 119 genes using the Congenica Clinical Interpretation Platform to detect both single-nucleotide variants and copy number variants in 126 patients. In total, 135 different heterozygous variants in genes implicated in bleeding disorders were identified. Of which, 22 were classified pathogenic, 26 likely pathogenic, and the remaining were of uncertain significance. There were marked differences in the number of reported variants in individuals between the four patient groups: platelet count (35), platelet function (43), combined platelet count and function (59), and normal count (17). Additionally, we report three novel copy number variations (CNVs) not previously detected. We show that a combined single-nucleotide variation (SNV)/CNV analysis using the Congenica platform not only improves detection rates for IBDs, suggesting that such an approach can be applied to other genetic disorders where there is a high degree of heterogeneity.
    MeSH term(s) Blood Platelet Disorders/genetics ; Computational Biology ; DNA Copy Number Variations ; Heterozygote ; Humans ; Mutation ; Phenotype ; Whole Exome Sequencing
    Language English
    Publishing date 2020-10-08
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1126646-6
    ISSN 1098-1004 ; 1059-7794
    ISSN (online) 1098-1004
    ISSN 1059-7794
    DOI 10.1002/humu.24114
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  7. Article ; Online: Ciprofloxacin-Associated Pancytopenia: A Rare Side Effect of a Commonly Prescribed Medication.

    Rabbi, Fazal / Qayum, Ihtisham / Humayun, Omama / Khan, Muhammad Ijaz / Khan, Uzma Ikhtiar / Abdullah, Hafez M A

    American journal of therapeutics

    2023  Volume 30, Issue 3, Page(s) e306–e307

    MeSH term(s) Humans ; Ciprofloxacin/adverse effects ; Pancytopenia/chemically induced ; Pancytopenia/diagnosis ; Drug-Related Side Effects and Adverse Reactions ; Iatrogenic Disease
    Chemical Substances Ciprofloxacin (5E8K9I0O4U)
    Language English
    Publishing date 2023-05-01
    Publishing country United States
    Document type Letter
    ZDB-ID 1280786-2
    ISSN 1536-3686 ; 1075-2765
    ISSN (online) 1536-3686
    ISSN 1075-2765
    DOI 10.1097/MJT.0000000000001406
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  8. Article: Modelling the pathology and treatment of cardiac fibrosis in vascularised atrial and ventricular cardiac microtissues.

    Reyat, Jasmeet S / di Maio, Alessandro / Grygielska, Beata / Pike, Jeremy / Kemble, Samuel / Rodriguez-Romero, Antonio / Simoglou Karali, Christina / Croft, Adam P / Psaila, Bethan / Simões, Filipa / Rayes, Julie / Khan, Abdullah O

    Frontiers in cardiovascular medicine

    2023  Volume 10, Page(s) 1156759

    Abstract: Introduction: Recent advances in human cardiac 3D approaches have yielded progressively more complex and physiologically relevant culture systems. However, their application in the study of complex pathological processes, such as inflammation and ... ...

    Abstract Introduction: Recent advances in human cardiac 3D approaches have yielded progressively more complex and physiologically relevant culture systems. However, their application in the study of complex pathological processes, such as inflammation and fibrosis, and their utility as models for drug development have been thus far limited.
    Methods: In this work, we report the development of chamber-specific, vascularised human induced pluripotent stem cell-derived cardiac microtissues, which allow for the multi-parametric assessment of cardiac fibrosis.
    Results: We demonstrate the generation of a robust vascular system in the microtissues composed of endothelial cells, fibroblasts and atrial or ventricular cardiomyocytes that exhibit gene expression signatures, architectural, and electrophysiological resemblance to
    Discussion: In conclusion, we present a novel methodology for the generation of chamber-specific cardiac microtissues that is highly scalable and allows for the multi-parametric assessment of cardiac remodelling and pharmacological screening.
    Language English
    Publishing date 2023-09-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2781496-8
    ISSN 2297-055X
    ISSN 2297-055X
    DOI 10.3389/fcvm.2023.1156759
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  9. Article ; Online: Recognizable Patterns of Submacular Fibrosis in Enhanced S-Cone Syndrome.

    Alsalamah, Abrar K / Khan, Arif O / Bakar, Abdullah Abu / Schatz, Patrik / Nowilaty, Sawsan R

    Ophthalmology. Retina

    2021  Volume 5, Issue 9, Page(s) 918–927

    Abstract: Purpose: To highlight recognizable patterns of subretinal fibrosis in enhanced S-cone syndrome (ESCS).: Design: Retrospective case series.: Participants: Forty-seven patients with subretinal fibrosis identified from 101 patients with clinically ... ...

    Abstract Purpose: To highlight recognizable patterns of subretinal fibrosis in enhanced S-cone syndrome (ESCS).
    Design: Retrospective case series.
    Participants: Forty-seven patients with subretinal fibrosis identified from 101 patients with clinically diagnosed ESCS, confirmed by full-field electroretinography (35/47), genetic testing (34/47), or both.
    Methods: Multimodal retinal imaging, electroretinography, and genetic analysis.
    Main outcome measures: Patterns of subretinal fibrosis with angiographic, OCT, and genetic correlations.
    Results: Eighty-five eyes of 47 patients (24 male patients; 36 unrelated consanguineous families) had subretinal fibrosis. Mean age at presentation was 14 years. Best-corrected visual acuity ranged from 20/20 to hand movements. All 34 genetically tested patients were homozygous for pathogenic NR2E3 variants. Subretinal fibrosis was always in the macular area, although it extended beyond in some patients. Six recurrent patterns of submacular fibrosis were noted: central unifocal nodular, circumferential unifocal nodular, multifocal nodular, arcuate, helicoid, and thick geographic. Some patients showed a combination of patterns. Previous misdiagnosis as inflammatory disease was common. Fibrosis was fairly symmetrical in a given patient but not always present or identical in other affected individuals with a given homozygous mutation from the same or other families.
    Conclusions: These recognizable patterns of submacular fibrosis are part of the ESCS phenotypic spectrum and strongly suggest the disease. In addition to facilitating diagnosis, recognition of these patterns can spare patients unnecessary workup for an inflammatory cause.
    MeSH term(s) Adolescent ; Adult ; Child ; Child, Preschool ; Electroretinography ; Eye Diseases, Hereditary/complications ; Eye Diseases, Hereditary/diagnosis ; Female ; Fibrosis/diagnosis ; Fibrosis/etiology ; Fluorescein Angiography/methods ; Fundus Oculi ; Humans ; Infant ; Macula Lutea/diagnostic imaging ; Male ; Retinal Degeneration/complications ; Retinal Degeneration/diagnosis ; Retrospective Studies ; Tomography, Optical Coherence/methods ; Vision Disorders/complications ; Vision Disorders/diagnosis ; Young Adult
    Language English
    Publishing date 2021-04-02
    Publishing country United States
    Document type Journal Article
    ISSN 2468-6530
    ISSN (online) 2468-6530
    DOI 10.1016/j.oret.2021.03.014
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  10. Article: Effect of Gum Arabic powder on the mechanical properties of denture base acrylic.

    Alsadon, Omar / Alkhureif, Abdulaziz Abdullah / Khan, Aftab Ahmed

    Pakistan journal of medical sciences

    2023  Volume 39, Issue 1, Page(s) 223–226

    Abstract: Objective: This study aimed to improve the mechanical properties of denture base material using various concentrations of natural biopolymer, i.e., Gum Arabic (GA).: Methods: This experimental study was conducted at the Dental Health Department of ... ...

    Abstract Objective: This study aimed to improve the mechanical properties of denture base material using various concentrations of natural biopolymer, i.e., Gum Arabic (GA).
    Methods: This experimental study was conducted at the Dental Health Department of the College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia from May 2022 to July 2022. After obtaining exemption from the institutional review board, the powdered GA was added in ratios of weight 5, 10, and 20% to PMMA heat-cured acrylic powder to produce bar-shaped samples (65 × 10 × 30 mm
    Results: Significant differences were observed for micro hardness (p<0.001) and fracture toughness (p=0.007) between the means of the different study groups. The control group exhibited the highest micro hardness (22.5±0.6 VHN) and fracture toughness (1.25±0.11 MPa.m
    Conclusions: GA powder might not be an appropriate reinforcing material for denture base or the higher filler loading of GA in denture base acrylic might be detrimental to the mechanical properties.
    Language English
    Publishing date 2023-01-24
    Publishing country Pakistan
    Document type Journal Article
    ZDB-ID 2032827-8
    ISSN 1681-715X ; 1682-024X ; 1017-4699
    ISSN (online) 1681-715X
    ISSN 1682-024X ; 1017-4699
    DOI 10.12669/pjms.39.1.6937
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