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Fine I, Kaminsky A, Shenkman L, Agbaria M. Non-invasive method for assessment of inflammation. Biomed Opt Express 2023; 14:4901-4913. [PMID: 37791253 PMCID: PMC10545212 DOI: 10.1364/boe.494637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 08/08/2023] [Accepted: 08/21/2023] [Indexed: 10/05/2023]
Abstract
This article explores the potential of non-invasive measurement for elevated levels of erythrocyte aggregation in vivo, which have been correlated with a higher risk of inflammatory processes. The study proposes utilizing a dynamic light scattering approach to measure aggregability. The sensor modules, referred to as "mDLS," comprise VCSEL and two photodiodes. Two of these modules are placed on an inflatable transparent cuff, which is then fitted to the subject's finger root, with one sensor module positioned on each side. By temporarily halting blood flow for one minute using over-systolic inflation of the cuff, signals from both sensors are recorded. The study involved three distinct groups of subjects: a control group consisting of 65 individuals, a group of 29 hospitalized COVID-19 patients, and a group of 34 hospitalized patients with inflammatory diseases. Through experimental results, significant differences in signal kinetic behavior were observed between the control group and the two other groups. These differences were attributed to the rate of red blood cell (RBC) aggregation, which is closely associated with inflammation. Overall, the study emphasizes the potential of non-invasive diagnostic tools in evaluating inflammatory processes by analyzing RBC aggregation.
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Affiliation(s)
- I. Fine
- Elfi-Tech Ltd., 2 Prof. Bergman St., Science Park, 76705 Rehovot, Israel
| | - A. Kaminsky
- Elfi-Tech Ltd., 2 Prof. Bergman St., Science Park, 76705 Rehovot, Israel
| | - L. Shenkman
- Elfi-Tech Ltd., 2 Prof. Bergman St., Science Park, 76705 Rehovot, Israel
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Itelman E, Segev A, Ahmead L, Leibowitz E, Agbaria M, Avaky C, Negro L, Shenhav-Saltzman G, Wasserstrum Y, Segal G. Low ALT values amongst hospitalized patients are associated with increased risk of hypoglycemia and overall mortality: a retrospective, big-data analysis of 51 831 patients. QJM 2022; 114:843-847. [PMID: 32642782 DOI: 10.1093/qjmed/hcaa219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/13/2020] [Accepted: 06/23/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Sarcopenia and frailty influence clinical patients' outcomes. Low alanine aminotransferase (ALT) serum activity is a surrogate marker for sarcopenia and frailty. In-hospital hypoglycemia is associated, also with worse clinical outcomes. AIM We evaluated the association between low ALT, risk of in-hospital hypoglycemia and subsequent mortality. DESIGN This was a retrospective cohort analysis. METHODS We included patients hospitalized in a tertiary hospital between 2007 and 2019. Patients' data were retrieved from their electronic medical records. RESULTS The cohort included 51 831 patients (average age 70.88). The rate of hypoglycemia was 10.8% (amongst diabetics 19.4% whereas in non-diabetics 8.3%). The rate of hypoglycemia was higher amongst patients with ALT < 10 IU/l in the whole cohort (14.3% vs. 10.4%, P < 0.001) as well as amongst diabetics (24.6% vs. 18.8%, P < 0.001). Both the overall and in-hospital mortality were higher in the low ALT group (57.7% vs. 39.1% P < 0.001 and 4.3% vs. 3.2%, P < 0.001). A propensity score matching, after which a regression model was performed, showed that patients with ALT levels < 10 IU/l had higher risk of overall mortality (HR = 1.21, CI 1.13-1.29, P < 0.001). CONCLUSIONS Low ALT values amongst hospitalized patients are associated with increased risk of in-hospital hypoglycemia and overall mortality.
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Affiliation(s)
- E Itelman
- From the Internal Medicine "T". Chaim Sheba Medical Center, Tel-Hashomer, 2 Sheba Road. Ramat-Gan 5262000, Israel
- Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Haim Levanon 55 st, Tel-Aviv 6997801, Israel
| | - A Segev
- From the Internal Medicine "T". Chaim Sheba Medical Center, Tel-Hashomer, 2 Sheba Road. Ramat-Gan 5262000, Israel
- Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Haim Levanon 55 st, Tel-Aviv 6997801, Israel
| | - L Ahmead
- From the Internal Medicine "T". Chaim Sheba Medical Center, Tel-Hashomer, 2 Sheba Road. Ramat-Gan 5262000, Israel
- Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Haim Levanon 55 st, Tel-Aviv 6997801, Israel
| | - E Leibowitz
- Department of Internal Medicine "A", Yoseftal Hospital, Yotam road, POB 600. Eilat 88104, Israel
| | - M Agbaria
- From the Internal Medicine "T". Chaim Sheba Medical Center, Tel-Hashomer, 2 Sheba Road. Ramat-Gan 5262000, Israel
- Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Haim Levanon 55 st, Tel-Aviv 6997801, Israel
| | - C Avaky
- From the Internal Medicine "T". Chaim Sheba Medical Center, Tel-Hashomer, 2 Sheba Road. Ramat-Gan 5262000, Israel
- Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Haim Levanon 55 st, Tel-Aviv 6997801, Israel
| | - L Negro
- From the Internal Medicine "T". Chaim Sheba Medical Center, Tel-Hashomer, 2 Sheba Road. Ramat-Gan 5262000, Israel
- Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Haim Levanon 55 st, Tel-Aviv 6997801, Israel
| | - G Shenhav-Saltzman
- From the Internal Medicine "T". Chaim Sheba Medical Center, Tel-Hashomer, 2 Sheba Road. Ramat-Gan 5262000, Israel
- Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Haim Levanon 55 st, Tel-Aviv 6997801, Israel
| | - Y Wasserstrum
- From the Internal Medicine "T". Chaim Sheba Medical Center, Tel-Hashomer, 2 Sheba Road. Ramat-Gan 5262000, Israel
- Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Haim Levanon 55 st, Tel-Aviv 6997801, Israel
| | - G Segal
- From the Internal Medicine "T". Chaim Sheba Medical Center, Tel-Hashomer, 2 Sheba Road. Ramat-Gan 5262000, Israel
- Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, Haim Levanon 55 st, Tel-Aviv 6997801, Israel
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