Publications by authors named "Shaheer Khan"

Understanding animal movement patterns, such as daily foraging, seasonal migration, dispersal and other movement behaviours, is essential for effectively managing and conserving species. The Great Indian Bustard (), a critically endangered bird, is thought to move opportunistically in response to environmental changes, particularly rainfall events, which influence food availability and habitat productivity. This research represents the first fine-scale analysis of the movement behaviour of this species.

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Purpose: The existing 2-bladed vaginal speculum has limitations and barriers to gynecologic diagnosis and treatment. This study aimed to evaluate three of these limitations (visualization of the cervix, ease of use, and relative comfort) using a newly designed vaginal speculum that was hypothesized to overcome these limitations.

Methods: This pilot prospective observational clinical study was conducted at five hospitals in Karachi, Pakistan.

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The utilization of thermoplastics is extensively prevalent in modern industrial sectors owing to their distinctive mechanical features. Friction stir welding is recognized as a distinctive joining technology that addresses the weaknesses of heat-induced fusion welding. This friction-stirred solid-state welding technology can be effectively employed to join various difficult-to-weld polymeric materials.

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Purpose: This study was performed to assess the performance and accuracy of artificial intelligence (AI) in the detection and diagnosis of maxillary sinus pathologies using computed tomography (CT)/cone-beam computed tomography (CBCT) imaging.

Materials And Methods: A comprehensive literature search was conducted across 4 databases: Google Scholar, BioMed Central (BMC), ProQuest, and PubMed. Combinations of keywords such as "DCNN," "deep learning," "convolutional neural network," "machine learning," "predictive modeling," and "data mining" were used to identify relevant articles.

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Objectives: Accurately predicting short-term MACE (major adverse cardiac events) following primary percutaneous coronary intervention (PCI) remains a clinical challenge. This study aims to assess the effectiveness of four established risk scores in predicting short-term MACE after primary PCI.

Design: Prospective observational study.

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The 2023 Cure Ocular Melanoma (CURE OM) Global Science Meeting was held in Philadelphia on November 6, 2023. There is increased awareness and dedicated research in uveal melanoma (UM), but unmet needs remain in the prevention, detection, and treatment of UM. The purpose of this meeting was to provide an international forum for the exchange of research ideas, to allow for discussion of basic science as well as clinical research on UM, and to gather input about advocacy and patient needs.

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Article Synopsis
  • Colorectal cancer (CRC) poses a significant treatment challenge, necessitating safer and more effective chemotherapeutic options.
  • In this study, the anticancer drug epirubicin (Epi) was encapsulated in polymeric nanoparticles coated with the non-toxic polysaccharide fucoidan, enhancing its effectiveness against CRC.
  • Results showed that the coated nanoparticles not only led to greater tumor regression and improved survival rates in mice but also reduced toxic side effects compared to free Epi and uncoated nanoparticle formulations.
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Aim: This study aimed to identify the key parameters to assist the early diagnosis of Dengue Infection to prevent severe outcomes.

Methodology: A cross-sectional study was conducted from June 2022 to December 2022 at a tertiary care hospital. 149 patients who presented with dengue symptoms for less than 5 days were enrolled in the study.

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Ceramics are the oxides of metals and nonmetals with excellent compressive strength. Ceramics usually exhibit inert behavior at high temperatures. Magnesium aluminate (MgAl2O4), a member of the ceramic family, possesses a high working temperature up to 2000°C, low thermal conductivity, high strength even at elevated temperatures, and good corrosion resistance.

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Background: Tobacco use has shifted in recent years, especially with the introduction of e-cigarettes. Despite the current variable and intersecting tobacco product use among tobacco users, most want to quit, which necessitates cessation programs to adapt to these variable trends (vs focusing on combustible cigarettes alone). The use of web-based modalities for cessation support has become quite popular in recent years and has been compounded by the COVID-19 pandemic.

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  • High-Density Lipoprotein Cholesterol (HDL-C) has traditionally been viewed as protective against cardiovascular disease (CVD), with higher levels suggesting lower risk.
  • Recent research indicates that extremely high HDL-C levels may actually be linked to increased CVD risks, challenging the idea that higher is always better.
  • The relationship between HDL-C, genetics, and cardiovascular outcomes is complex, necessitating further studies to understand how HDL-C levels influence CVD risk and guide treatment approaches.*
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Digital health is a field that aims to improve patient care through the use of technology, such as telemedicine, mobile health, electronic health records, and artificial intelligence. The aim of this review is to examine the challenges and potential solutions for the implementation and evaluation of digital health technologies. Digital tools are used across the world in different settings.

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Introduction: The importance of including people affected by research (e.g., community members, citizens or patient partners) is increasingly recognized across the breadth of institutions involved in connecting research with action.

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Plumbagin (PLM), a plant derivative, is well known for a wide range of therapeutic effects in humans including anti-cancer, anti-inflammatory, anti-oxidant, and anti-microbial. Cytotoxic and genotoxic potential of this phytochemical has been studied which demands further insight. DNA being a major target for several drugs was taken to study against PLM to understand its effects on the cellular system.

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Vaping rates among Canadian youth are significantly higher compared to adults. While it is acknowledged that various personal and socio-environmental factors influence the risk of school-aged youth for vaping uptake, we don't know which known behavior change factors are most influential, for whom, and how. The Unified Theory of Behavior (UTB) brings together theoretically-based behavior change factors that influence health risk decision making.

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Uveal melanoma is one of the most common primary intraocular malignancies that accounts for about 85% of all ocular melanomas. The pathophysiology of uveal melanoma is distinct from cutaneous melanoma and has separate tumor profiles. The management of uveal melanoma is largely dependent on the presence of metastases, which confers a poor prognosis with a one-year survival reaching only 15%.

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The NASA Psyche mission's program to engage university undergraduates and the public in the mission is inspired by and built upon the extensive foundation of public engagement, educational outreach activities, and expertise of NASA and mission partner institutions. The program leverages the enthusiasm and contributions of undergraduates nationwide to the benefit of the mission, the students and their institutions and communities, and the broader public. Psyche Student Collaborations consists of four main programs, two (Psyche Capstone and Psyche Inspired) are available solely to undergraduates enrolled at universities or community colleges in the United States and its territories and two (Innovation Toolkit free online courses and Science Outreach Interns and Docents) invite broader participation by engaging the talents and creativity of undergraduate interns to help create content and events to reach the public and lifelong learners.

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Breast cancer is the second most common cancer around the world. Triple-negative breast cancer (TNBC) is characterized by the absence of three receptors: progesterone, estrogen, and human epidermal growth factor-2 receptor (HER2). Various synthetic chemotherapies have gained attention but they caused unwanted side effects.

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Article Synopsis
  • Neoadjuvant chemotherapy shows better overall 5-year survival rates for rectal gastrointestinal stromal tumours (GISTs) compared to adjuvant therapy, though both treatments have similar effects on margin negativity and recurrence rates.
  • There was no significant difference in overall 5-year survival or recurrence between local and radical excision, but local excision resulted in a shorter hospital stay.
  • Radical resection achieved better rates of negative margins (R0) compared to local excision, highlighting the complexities in treatment choices for rectal GISTs.
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Single-cell genomics enables dissection of tumor heterogeneity and molecular underpinnings of drug response at an unprecedented resolution. However, broad clinical application of these methods remains challenging, due to several practical and preanalytical challenges that are incompatible with typical clinical care workflows, namely the need for relatively large, fresh tissue inputs. In the present study, we show that multimodal, single-nucleus (sn)RNA/T cell receptor (TCR) sequencing, spatial transcriptomics and whole-genome sequencing (WGS) are feasible from small, frozen tissues that approximate routinely collected clinical specimens (for example, core needle biopsies).

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  • Cytokine storms caused by COVID-19 can lead to severe health issues, particularly in cancer patients undergoing immunotherapy due to heightened immune responses.
  • A study involving over 12,000 cancer patients aimed to explore how baseline immunosuppression and immunotherapy affect the severity of COVID-19 and the likelihood of cytokine storms.
  • Results indicated no significant differences in COVID-19 severity or cytokine storm occurrence among patients receiving immunotherapy compared to those not receiving any cancer treatment prior to their COVID-19 diagnosis.
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Background: Enhancing the educational experience provided by ward rounds requires an understanding of current perceptions of the educational value of rounds.

Objective: This systematic review examines perceptions of education in ward rounds, educational activities in ward rounds, barriers to learning, and perceptions of simulation-based ward rounds.

Methods: The 2020 PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines were followed.

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Introduction: Uveal melanoma (UM) is associated with poor outcomes in the metastatic setting and harbors activating mutations resulting in upregulation of MAPK signaling in almost all cases. The efficacy of selumetinib, an oral allosteric inhibitor of MEK1/2, was limited when administered at a continual dosing schedule of 75 mg BID. Preclinical studies demonstrate that intermittent MEK inhibition reduces compensatory pathway activation and promotes T cell activation.

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Metastatic uveal melanoma (mUM) is an advanced ocular malignancy characterized by a hepatotropic pattern of spread. As the incidence of brain metastases (BM) in mUM patients has been thought to be low, routine CNS surveillance has not been recommended. Notably, no formal assessment of BM incidence in mUM has to date been published to support this clinical practice.

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Red fox () is the most widespread wild carnivore globally, occupying diverse habitats. The species is known for its adaptability to survive in dynamic anthropogenic landscapes. Despite being one of the most extensively studied carnivores, there is a dearth of information on red fox from the Trans-Himalayan region.

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