Publications by authors named "Maneesh N Singh"

Article Synopsis
  • Fabry disease (FD) is a rare genetic disorder caused by a deficiency of the enzyme alpha-galactosidase-A due to mutations in the GLA gene, leading to harmful lipid accumulation in cells and primarily affecting males.
  • The study investigates the use of attenuated total reflection Fourier-transform IR (ATR-FTIR) spectroscopy to analyze plasma samples and identify a distinct molecular profile in FD patients compared to healthy controls, achieving perfect accuracy in differentiating the two groups.
  • The findings suggest that ATR-FTIR spectroscopy, combined with advanced pattern recognition algorithms, could serve as a quick and cost-effective screening method for Fabry disease, applicable to all genders.
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Article Synopsis
  • Lung cancer is a prevalent type of cancer, and despite existing diagnostic methods like X-rays and CT scans, there is a pressing need for faster and non-invasive early detection techniques.
  • A novel saliva "dip" test analyzed through advanced spectroscopy and statistical models was developed, utilizing 1944 samples, including both lung-cancer positive and control groups.
  • The results showed high sensitivity (100%) and specificity (99.1%), identifying key wavenumbers associated with lung cancer, which indicates a promising approach for differentiating between healthy and cancerous samples using biospectroscopy.
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The use of non-invasive tools in conjunction with artificial intelligence (AI) to detect diseases has the potential to revolutionize healthcare. Near-infrared spectroscopy (NIR) is a technology that can be used to analyze biological samples in a non-invasive manner. This study evaluated the use of NIR spectroscopy in the fingertip to detect neutropenia in solid-tumor oncologic patients.

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Diabetes mellitus (DM) is a metabolic disease with an increasing prevalence that is causing worldwide concern. The pre-diabetes stage is the only reversible stage in the patho-physiological process towards DM. Due to the limitations of traditional methods, the diagnosis and detection of DM and pre-diabetes are complicated, expensive, and time-consuming.

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Article Synopsis
  • ATR-FTIR spectroscopy is a new technology being researched for its potential use in medical diagnostics, specifically for classifying levels of D-dimer, a substance related to blood clotting and conditions like pulmonary embolism and COVID-19 severity.
  • The study analyzed plasma D-dimer levels from 100 patients using advanced statistical methods like PCA and machine learning algorithms (GA-LDA and PLS-DA) to accurately classify D-dimer concentrations.
  • The GA-LDA method showed impressive results with high sensitivity and specificity, suggesting that ATR-FTIR spectroscopy could improve patient diagnosis, reduce healthcare costs, and enhance overall patient care.
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Saliva is a largely unexplored liquid biopsy that can be readily obtained noninvasively. Not dissimilar to blood plasma or serum, it contains a vast array of bioconstituents that may be associated with the absence or presence of a disease condition. Given its ease of access, the use of saliva is potentially ideal in a point-of-care screening or diagnostic test.

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There is an increasing need for inexpensive and rapid screening tests in point-of-care clinical oncology settings. Herein, we develop a swab "dip" test in saliva obtained from consenting patients participating in a lung-cancer-screening programme being undertaken in North West England. In a pilot study, a total of 211 saliva samples ( = 170 benign, 41 designated cancer-positive) were randomly taken during the course of this prospective lung-cancer-screening programme.

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Article Synopsis
  • Rapid identification of respiratory viruses, particularly SARS-CoV-2, is critical for pandemic management, and this study focuses on improving saliva screening using a high-tech method called MALDI FT-ICR MS combined with machine learning.* -
  • The study optimized saliva sample preparation using trypsin digestion and found good results in classifying samples as positive or negative for SARS-CoV-2 with two support vector machine (SVM) models, achieving high accuracy rates.* -
  • The first SVM model (SVM1) demonstrated 100% accuracy in the calibration group and a 95.6% accuracy in the test group, indicating its potential as an effective tool for COVID-19 screening.*
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There is an urgent need for ultrarapid testing regimens to detect the severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2] infections in real-time within seconds to stop its spread. Current testing approaches for this RNA virus focus primarily on diagnosis by RT-qPCR, which is time-consuming, costly, often inaccurate, and impractical for general population rollout due to the need for laboratory processing. The latency until the test result arrives with the patient has led to further virus spread.

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Endometriosis is the growth of endometrial tissue outside of the uterine cavity. Its aetiology remains obscure, and it is difficult to diagnose ranging from asymptomatic to debilitating disease. Mid-infrared (IR) spectroscopy has become recognised as a potential clinical diagnostic tool.

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Endometrial carcinoma consists of endometrioid (type I) and serous papillary (SP; type II) subtypes; a rarer form is malignant mixed müllerian tumours (MMMT; type II/mixed). We set out to determine whether one might be able to biochemically signature these subtypes using Fourier-transform infrared (FTIR) microspectroscopy and distinguish non-tamoxifen associated from tamoxifen-associated cases. Paraffin-embedded blocks were obtained from non-tamoxifen associated cases reported as endometrioid (n=7), SP (n=4) or MMMT (n=4).

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Endometriosis is a debilitating disease in which apoptotic, genetic, immunological, angiogenic and environmental factors have been implicated. Endocrine-disrupting agents (e.g.

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Tamoxifen is a selective oestrogen receptor modulator (SERM) with an established role in the treatment and chemoprevention of hormone-related breast cancer. It is also cardioprotective and increases bone mineral density. However, due to pleiotrophic ligand-receptor properties, its role in a variety of seemingly unrelated disorders, including multiple sclerosis, Parkinson's disease, Alzheimer's disease, systemic lupus erythematosus and urological cancers, has been investigated in many studies.

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Infrared (IR) absorbance of cellular biomolecules generates a vibrational spectrum, which can be exploited as a "biochemical fingerprint" of a particular cell type. Biomolecules absorb in the mid-IR (2-20 mum) and Fourier-transform infrared (FTIR) microspectroscopy applied to discriminate different cell types (exfoliative cervical cytology collected into buffered fixative solution) was evaluated. This consisted of cervical cytology free of atypia (i.

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Tamoxifen has been used in the management of receptor-positive breast cancer for >20 years. Usage confers an elevated risk of developing endometrial carcinoma. Its mechanism of carcinogenicity remains unresolved with controversy as to whether or not this is mediated through a genotoxic mechanism.

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The synucleins are a small, soluble, highly conserved group of neuronal proteins that have been implicated in both neurodegenerative diseases and cancer. The synuclein family consists of alpha-, beta-, and gamma-synucleins (gamma-syn). They are a natively unfolded group of proteins that share sequence homologies and structural properties.

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Background: Incarceration of the retroverted gravid uterus is an extremely rare diagnosis in the third trimester that carries significant maternal operative and postoperative morbidity.

Case: The condition was diagnosed clinically in the third trimester of a primigravida. Despite the preoperative diagnosis, operative delivery proved difficult, requiring delivery of the fetus through the posterior wall of the uterus.

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Tamoxifen remains a frontline treatment for hormone-responsive breast cancer despite its use being associated with a 2-7-fold elevated risk of developing endometrial carcinoma. Several groups have investigated whether tamoxifen induces DNA-damaging (genotoxic) versus non-genotoxic mechanisms. Some studies point to the presence of tamoxifen-DNA adducts while others suggest otherwise.

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Although cervical cancer screening in the UK has led to reductions in the incidence of invasive disease, this programme remains flawed. We set out to examine the potential of infrared (IR) microspectroscopy to allow the profiling of cellular biochemical constituents associated with disease progression. Attenuated total reflection-Fourier Transform IR (ATR) microspectroscopy was employed to interrogate spectral differences between samples of exfoliative cervical cytology collected into liquid based cytology (LBC).

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