Publications by authors named "Harminder Singh"

Purpose: This systematic review aimed to collate and synthesize the available literature on the abscopal effect in Glioblastoma multiforme (GBM) neoplasms, focusing on the reported biochemical mechanisms driving the abscopal effect.

Methods: A systematic search was conducted in PubMed, Cochrane Database of Systematic Reviews, and Epistemonikos from inception to May 1, 2023. Studies exploring the abscopal effect in GBM were included.

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Objective Heart failure (HF) is an important underrecognized complication of type 2 diabetes mellitus (T2DM). Recent literature and recommendations support screening for HF among T2DM people attending the outpatient department (OPD) in non-emergency settings using a biomarker. The present study is a retrospective cross-sectional study that assesses the prevalence of screen positivity (S+) for undiagnosed HF among T2DM people (with normal electrocardiogram (ECG) and no history of heart disease) attending the OPD at a tertiary care center in India using N-terminal pro-B-type natriuretic peptide (NT-proBNP).

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Background: The fecal immunochemical test for hemoglobin (FIT) is now a widely used non-invasive test in population-based organized screening programs for colorectal neoplasia. The positivity thresholds of tests currently in use are based on the fecal hemoglobin concentration (f-Hb), but the rationale for the adopted thresholds are not well documented. To understand current global usage of FIT in screening programs we conducted an international survey of the brands of FIT used, the f-Hb positivity threshold applied and the rationale for the choice.

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  • Movement monitoring is enhanced through the use of Internet of Things (IoT) technologies, specifically with triboelectric nanogenerators (TENG) that provide eco-friendly power without batteries.
  • * These TENGs are fabricated using biodegradable materials, particularly natural leaves, aligning with sustainable development goals for clean and affordable energy.
  • * A study shows that the FRL-TENG outperformed other biodegradable materials in voltage generation and can function as a wearable sensor, accurately monitoring activities like walking, jumping, and running using a machine learning model.
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  • Chronic liver disease and cirrhosis are increasingly common in North America, and this study specifically looked at their incidence and prevalence in Manitoba from 2010 to 2019.
  • By analyzing health care data and applying case-finding algorithms, researchers found that the incidence rates of cirrhosis increased significantly, particularly among young adults aged 18-44 and consistently higher in females than males.
  • The study calls for urgent strategies for prevention and early detection to address the rising trends of cirrhosis and its impact on public health.
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Importance: The Fracture Risk Assessment Tool (FRAX) is a fracture risk prediction tool for 10-year probability of major osteoporotic fracture (MOF) and hip fracture in the general population. Whether FRAX is useful in individuals with cancer is uncertain.

Objective: To determine the performance of FRAX for predicting incident fractures in individuals with cancer.

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Background: Safety remains a significant concern for biologic drugs, and studies are needed to ensure a comparable safety profile for biosimilars and their legacy treatments. Using Canadian administrative health data from 2015-2019, we compared the incidence of serious infection between biosimilars and bio-originators initiators for etanercept and infliximab, two of the most commonly used biologics during this time.

Methods: We performed a retrospective cohort study using pan-Canadian data (except Quebec) from the National Prescription Drug Utilization Information System linked to hospitalization data.

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Stem cell therapy in diabetic foot ulcer has emerged as a promising treatment option to promote ulcer healing. This network meta-analysis was undertaken to evaluate how they compete with each other and their ranking with respect to chances of ulcer healing. A systematic search strategy to retrieve data from five databases, were used to identify potential studies.

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Background And Aims: Social determinants of health contribute to disparities in gastrointestinal (GI) cancer mortality between individuals in the US. Their effects on count-level mortality rates remain uncertain. We aimed to assess the association between county social vulnerability and GI cancer mortality.

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'Click' derived 1,2,3-triazole appended scaffolds are intriguing candidates for selective metal ion recognition because of their stereospecificity and efficiency. The presented report uses the 'click' approach to introduce a glyoxal bis-(2-hydroxyanil)-based chemosensor probe (GT) the CuAAC pathway, which can selectively detect Cu(II) and Pb(II) ions, both of which are among the most hazardous and perturbing environmental pollutants. NMR spectroscopy, IR spectroscopy, and mass spectrometry (LCMS) were used to successfully characterize the synthesized probe.

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Various attributes are hypothesized to facilitate the dominance of an invasive species in non-native geographical and ecological regimes. To explore the characteristic invasive attributes of the family Asteraceae, a comparative study was conducted among nine species of this family, co-occurring in the western Himalayan region. Based on their nativity and invasion status, the species were categorized as "Invasive", "Naturalized", and "Native".

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Background: Canada has one of the highest incidences of colorectal cancer (CRC) worldwide. CRC screening improves CRC outcomes and is cost-effective. This study compares Canadian CRC screening programs using essential elements of an organized screening program outlined by the International Agency for Research on Cancer (IARC).

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  • Strategies to minimize COVID-19’s impact led to a significant reduction in diagnostic testing for breast, cervical, and colorectal cancers in Manitoba, Canada.
  • A population-based study tracked these diagnostic rates from January 2015 to August 2022, revealing dramatic decreases in various tests following the pandemic's onset, such as a 77% drop in bilateral mammograms.
  • As of late 2022, the data indicated lingering deficits in diagnostic tests, with thousands fewer tests conducted compared to pre-pandemic expectations, highlighting ongoing impacts on cancer care.
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Thermal inactivation is a major bottleneck to the scalable production, storage, and transportation of protein-based reagents and therapies. Failures in temperature control both compromise protein bioactivity and increase the risk of microorganismal contamination. Herein, we report the rational design of fluorochemical additives that promiscuously bind to and coat the surfaces of proteins to enable their stable dispersion within fluorous solvents.

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Introduction: To study digestive system cancer risks in individuals with inflammatory bowel diseases (IBDs) in the biologic era.

Methods: We used population-level administrative and cancer registry data from Ontario, Canada, (1994-2020) to compare people with IBD to matched controls (1:10 by sex and birth year) on trends in age-sex standardized cancer incidence and risk ratios of incident cancers and cancer-related deaths.

Results: Among 110,919 people with IBD and 1,109,190 controls, colorectal cancer incidence (per 100,000 person-years) declined similarly in people with ulcerative colitis (average annual percentage change [AAPC] -1.

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Objectives: Type 2 Diabetics have elevated risk for acute coronary syndrome (ACS). The current management algorithm focuses on atherosclerotic cardiovascular (ASCVD) risk score to stratify this risk. However, in medically managed subjects, this algorithm may not be accurate.

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National consensus recommendations have recently been developed to standardize colorectal tumour localization and documentation during colonoscopy. In this qualitative semi-structured interview study, we identified and contrast the perceived barriers and facilitators to using these new recommendations according to gastroenterologists and surgeons in a large central Canadian city. Interviews were analyzed according to the Consolidated Framework for Implementation Research (CFIR) through directed content analysis.

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Article Synopsis
  • - A study investigated how ultra-processed foods (UPFs) and minimally processed foods (MPFs) impact bowel habits in U.S. adults, analyzing data from the National Health and Nutrition Examination Survey (2005-2010).
  • - Results showed that higher UPF consumption correlated with increased odds of constipation (2.20 times higher), while higher MPF intake was linked to reduced odds of constipation (0.46 times lower).
  • - The relationship between UPF and constipation persisted even after considering overall diet quality, suggesting that replacing UPFs with MPFs can improve bowel health.
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In this study, two novel chalcone-derived 1,2,3-triazole-appended positional isomers (probe 6 and probe 9) were synthesized the 'CuAAC' (Cu(i) - catalysed alkyne azide cycloaddition) methodology for the purpose of metal ion detection. The synthesized probes underwent characterization utilizing standard spectroscopic methodologies including FTIR, NMR (H and C), and mass spectrometry. Subsequently, the sensing capabilities of these probes were explored using UV-Vis and fluorescence spectroscopy, wherein their selective recognition potential was established for Pb(ii) and Cu(ii), both of which can pose serious health hazards when prevalent in the environment above permissible limits.

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This article discusses the complex network of ion transporters, genes, microRNAs, and transcription factors that regulate crop tolerance to saline-alkaline stress. The framework aids scientists produce stress-tolerant crops for smart agriculture. Salinity and alkalinity are frequently coexisting abiotic limitations that have emerged as archetypal mediators of low yield in many semi-arid and arid regions throughout the world.

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Background: We sought to understand the trends in media use, and how consumption and source affected mental health of persons with inflammatory bowel disease during the early parts of the pandemic. Dissemination of news during the coronavirus disease 2019 (COVID-19) pandemic was integral to educating the public but also could be harmful if constantly consumed, leading to worsening anxiety.

Methods: We performed a survey study in autumn 2020 during the second wave of COVID-19 in Manitoba.

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