25 research outputs found

    The performance of faecal immunochemical test and urinary volatile compounds in the detection of colorectal adenomas and their role in polyp surveillance : (FAST study)

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    Colorectal polyp surveillance plays a major role in the prevention of colorectal cancer. Non-invasive surveillance modalities, therefore, attract considerable attention. In this study, the performance of FIT varied depending on the cut-off levels chosen. Overall, its sensitivity was higher at lower thresholds, whilst a steady decline was noted at higher cut-off levels. Higher specificity was observed at higher cut-off levels. FIT had shown a better performance in the detection of a high-risk finding. At the threshold of 10 ug/g faeces, the sensitivity and specificity of FIT for the detection of a high-risk finding were 0.54 (95% confidence interval (CI), 0.43 to 0.65) and 0.79 (95% CI, 0.73 to 0.84) respectively. Moreover, in our study, age, sex, proton pump inhibitor therapy, anticoagulation therapy, antiplatelet therapy and non-steroidal anti-inflammatory drugs did not have any effect on the performance of FIT. The analysis of VOC demonstrated that a high-risk finding could be differentiated with the area under curve of 0.74 (sensitivity of 0.92 (95% CI, 0.86 to 0.97) and specificity of 0.62 (95% CI, 0.55 to 0.68). The combined performance of FIT and VOC, in a serial testing manner, was superior to either of those tests conducted alone. The combination of FIT and VOC can be utilised in polyp surveillance, as a triage tool in risk-stratifying patients

    Breath diagnostics in the era of SARS-CoV-2 – in clinical and research arena.

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    The emergence of the SARS-CoV-2 pandemic has transformed not just healthcare, but also the economic systems on a global scale. Despite significant efforts to contain the infection, it continues to spread. Stringent infection control measures have been taken to minimise the transmission between individuals and healthcare workers, especially those undertaking aerosols generating medical procedures. The uncertainties surrounding infection transmission through breath tests in particular, and to some extent faecal testing, will invariably cause concerns among both the patients and the healthcare workers. It is therefore pertinent that all of the necessary measures are adopted to minimise this risk of spreading. In this article, we summarise the physiology and virulence of SARS-CoV-2 and discuss the implications for breath testing (in both the clinical and research arena) as well as outlining methods to mitigate these risks

    A Systematic Review and Meta-Analysis: Volatile Organic Compound Analysis in the Detection of Hepatobiliary and Pancreatic Cancers

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    Background: Hepatobiliary cancers are notoriously difficult to detect, frequently leading to diagnosis in later stages of disease when curative treatment is not an option. The currently used biomarkers such as AFP (alpha-fetoprotein) and CA19.9 lack sensitivity and specificity. Hence, there is an unmet need for an alternative biomarker. Aim: To evaluate the diagnostic accuracy of volatile organic compounds (VOCs) for the detection of hepatobiliary and pancreatic cancers. Methods: A systematic review of VOCs’ use in the detection of hepatobiliary and pancreatic cancers was performed. A meta-analysis was performed using the software R. Heterogeneity was explored through meta-regression analysis. Results: A total of 18 studies looking at 2296 patients were evaluated. Pooled sensitivity and specificity of VOCs for the detection of hepatobiliary and pancreatic cancer were 0.79 (95% CI, 0.72−0.85) and 0.81 (97.5% CI, 0.76−0.85), respectively. The area under the curve was 0.86. Meta-regression analysis showed that the sample media used contributed to heterogeneity. Bile-based VOCs showed the highest precision values, although urine and breath are preferred for their feasibility. Conclusions: Volatile organic compounds have the potential to be used as an adjunct tool to aid in the early diagnosis of hepatobiliary cancers

    Potential of Coffee Waste in Enzyme Production under Solid-State Fermentation using Penicillium sp

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    This Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
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