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Mojumdar A, B S U, Packirisamy G. A simple and effective method for smartphone-based detection of polyamines in oral cancer. Biomed Mater 2024; 19:045044. [PMID: 38871001 DOI: 10.1088/1748-605x/ad581a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 06/13/2024] [Indexed: 06/15/2024]
Abstract
Oral cancer accounts for 50%-70% of all cancer-related deaths in India and ranks sixth among the most frequent cancers globally. Roughly 90% of oral malignancies are histologically arise from squamous cells and are therefore called oral squamous cell carcinoma. Organic polycations known as biogenic polyamines, for example, putrescine (Put), spermidine (Spd), and spermine (Spm), are vital for cell proliferation, including gene expression control, regulation of endonuclease-mediated fragmentation of DNA, and DNA damage inhibition. Higher Spm and Spd levels have been identified as cancer biomarkers for detecting tumour development in various cancers. The current study utilises tannic acid, a polyphenolic compound, as a reducing and capping agent to fabricate AuNPs via a one-step microwave-assisted synthesis. The fabricated TA@AuNPs were utilised as a nanoprobe for colourimetric sensing of polyamines in PBS. When TA@AuNPs are added to the polyamine, the amine groups in polyamines interact with the phenolic groups of TA@AuNPs via hydrogen bonding or electrostatic interactions. These interactions cause the aggregation of TA@AuNPs, resulting in a red shift of the Surface Plasmon Resonance band of TA@AuNPs from 530 nm to 560 nm. The nanoprobe was found to be highly specific for Spm at low concentrations. TA@AuNPs were able to detect Spm successfully in artificial saliva samples. On recording the RGB values of the sensing process using a smartphone app, it was found that as the nanoparticles aggregated due to the presence of Spm, the intensity of theR-value decreased, indicating the aggregation of TA@AuNPs due to interaction with the polyamine.
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Affiliation(s)
- Asmita Mojumdar
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Unnikrishnan B S
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Gopinath Packirisamy
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
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2
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Li S, Guo W, Jin Q, Meng Q, Yang R, Zhang H, Fu M, Wang T, Liu D, Meng X, Zhang W. Salivary iodine concentration in pregnant women and its association with iodine status and thyroid function. Eur J Nutr 2024; 63:1139-1149. [PMID: 38355932 DOI: 10.1007/s00394-024-03332-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 01/25/2024] [Indexed: 02/16/2024]
Abstract
PURPOSE There have been no reports on the application of salivary iodine concentration (SIC) in evaluating iodine nutrition in pregnant women. This study aimed to clarify the relationship between SIC and indicators of iodine nutritional status and thyroid function during pregnancy, to investigate whether salivary iodine can be applied to the evaluation of iodine nutritional status in pregnant women, and to provide a reference basis for establishing a normal range of salivary iodine values during pregnancy. METHODS Pregnant women were enrolled in the Department of Obstetrics, the people's hospital of Yuncheng Country, Shandong Province, from July 2021 to December 2022, using random cluster sampling. Saliva, urine, and blood samples were collected from pregnant women to assess iodine nutritional status, and venous blood was collected to determine thyroid function. RESULTS A total of 609 pregnant women were included in this study. The median spot urinary iodine concentration (SUIC) was 261 μg/L. The median SIC was 297 μg/L. SIC was positively correlated with SUIC (r = 0.46, P < 0.0001), 24-h UIC (r = 0.30, P < 0.0001), 24-h urinary iodine excretion (24-h UIE) (r = 0.41, P < 0.0001), and estimated iodine intake (EII) (r = 0.52, P < 0.0001). After adjusting for confounders, there was a weak correlation between SIC and serum total iodine and serum non-protein-bound iodine (P = 0.02, P = 0.04, respectively). Pregnant women with a SIC < 176 μg/L had a higher risk of insufficient iodine status (OR = 2.07, 95% CI 1.35-3.19) and thyroid dysfunction (OR = 2.71, 95% CI 1.18-6.21) compared to those with higher SIC. Those having SIC > 529 μg/L were more likely to have excessive iodine status (OR = 2.82, 95% CI 1.81-4.38) and thyroid dysfunction (OR = 3.04, 95% CI 1.36-6.78) than those with lower SIC values. CONCLUSION SIC is associated with urinary iodine concentration and thyroid function in pregnant women. SIC < 176 μg/L was associated with an increased risk for iodine deficiency and hypothyroxinemia, while SIC > 529 μg/L was related to excess and thyrotoxicosis. SIC can be used as a reference indicator for evaluating the iodine nutrition status of pregnant women, but it needs further investigation and verification. TRIAL REGISTRATION NCT04492657(Aug 9, 2022).
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Affiliation(s)
- Shaohan Li
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Wenxing Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Qi Jin
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Qi Meng
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Rui Yang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Hexi Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Min Fu
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Ting Wang
- Department of Obstetrics, Yuncheng County People's Hospital, Yuncheng, 274700, China
| | - Denghai Liu
- Department of Clinical Laboratory, Yuncheng County People's Hospital, Yuncheng, 274700, China
| | - Xianglu Meng
- Department of Clinical Laboratory, Yuncheng County People's Hospital, Yuncheng, 274700, China
| | - Wanqi Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China.
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, 300052, China.
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China.
- Tianjin Key Laboratory of Hormones and Development (Ministry of Health), Tianjin, 300384, China.
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Rudzinska-Radecka M, Bańcerowski B, Marczyński R, Mukherjee D, Sikora T, Morawska K, Mielczarek A, Moździerski M, Hajduk B, Kotowicz B. Evaluation of Salivary Biomarkers and Spirometry for Diagnosing COPD in Non-Smokers and Smokers of Polish Origin. Biomedicines 2024; 12:1206. [PMID: 38927413 PMCID: PMC11200520 DOI: 10.3390/biomedicines12061206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/16/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a prevalent respiratory condition with global implications. Accurate and timely diagnosis is critical; however, traditional diagnostic methods (based on spirometry) show limitations, prompting the search for predictive biomarkers and modern diagnostic techniques. This study explored the validation of COPD-related biomarkers (C-reactive protein, procalcitonin, neutrophil elastase, and alpha-1 antitrypsin) in saliva. A diverse cohort, including healthy non-smokers, healthy smokers, and COPD patients of Polish origin, underwent spirometry and marker analysis. The data correlated with clinical factors, revealing noteworthy relations. Firstly, salivary biomarker levels were compared with serum concentrations, demonstrating notable positive or negative correlations, depending on the factor. Further analysis within healthy individuals revealed associations between biomarker levels, spirometry, and clinical characteristics such as age, sex, and BMI. Next, COPD patients exhibited an enhanced concentration of biomarkers compared to healthy groups. Finally, the study introduced a breathing assessment survey, unveiling significant associations between self-perceived breathing and spirometric and tested parameters. Outcomes emphasized the relevance of subjective experiences in COPD research. In conclusion, this research underscored the potential of salivary biomarkers as diagnostic tools for COPD, offering a non-invasive and accessible alternative to traditional methods. The findings paved the way for improved modern diagnostic approaches.
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Affiliation(s)
- Magdalena Rudzinska-Radecka
- Recumed Ltd., 05-092 Łomianki, Poland
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warszawa, Poland
| | | | | | - Debjita Mukherjee
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warszawa, Poland
| | - Tomasz Sikora
- Military Institute of Chemistry and Radiometry, 00-910 Warsaw, Poland (K.M.)
| | - Karolina Morawska
- Military Institute of Chemistry and Radiometry, 00-910 Warsaw, Poland (K.M.)
| | - Agnieszka Mielczarek
- Department of Conservative Dentistry and Endodontics, Medical University of Warsaw, 02-097 Warsaw, Poland;
| | | | - Bogdan Hajduk
- TS Out-Patients Clinic for Cardiovascular and Pulmonary Diseases, 01-460 Warsaw, Poland;
| | - Beata Kotowicz
- Cancer Biomarker and Cytokines Laboratory Unit, Maria Skłodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland;
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Dorsch A, Förschner F, Ravandeh M, da Silva Brito WA, Saadati F, Delcea M, Wende K, Bekeschus S. Nanoplastic Size and Surface Chemistry Dictate Decoration by Human Saliva Proteins. ACS APPLIED MATERIALS & INTERFACES 2024; 16:25977-25993. [PMID: 38741563 DOI: 10.1021/acsami.4c00014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Environmental pollution with plastic polymers has become a global problem, leaving no continent and habitat unaffected. Plastic waste is broken down into smaller parts by environmental factors, which generate micro- and nanoplastic particles (MNPPs), ultimately ending up in the human food chain. Before entering the human body, MNPPs make their first contact with saliva in the human mouth. However, it is unknown what proteins attach to plastic particles and whether such protein corona formation is affected by the particle's biophysical properties. To this end, we employed polystyrene MNPPs of two different sizes and three different charges and incubated them individually with saliva donated by healthy human volunteers. Particle zeta potential and size analyses were performed using dynamic light scattering complemented by nanoliquid chromatography high-resolution mass spectrometry (nLC/HRMS) to qualitatively and quantitatively reveal the protein soft and hard corona for each particle type. Notably, protein profiles and relative quantities were dictated by plastic particle size and charge, which in turn affected their hydrodynamic size, polydispersity, and zeta potential. Strikingly, we provide evidence of the latter to be dynamic processes depending on exposure times. Smaller particles seemed to be more reactive with the surrounding proteins, and cultures of the particles with five different cell lines (HeLa, HEK293, A549, HepG2, and HaCaT) indicated protein corona effects on cellular metabolic activity and genotoxicity. In summary, our data suggest nanoplastic size and surface chemistry dictate the decoration by human saliva proteins, with important implications for MNPP uptake in humans.
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Affiliation(s)
- Anna Dorsch
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Fritz Förschner
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Mehdi Ravandeh
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Walison Augusto da Silva Brito
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
- Department of General Pathology, State University of Londrina, Rodovia Celso Garcia Cid, Londrina 86057-970, Brazil
| | - Fariba Saadati
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Mihaela Delcea
- Biophysical Chemistry Department, University of Greifswald, Felix-Hausdorff-Str. 4, 17487 Greifswald, Germany
| | - Kristian Wende
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Sander Bekeschus
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
- Department of Dermatology and Venereology, Rostock University Medical Center, Strempelstr. 13, 18057 Rostock, Germany
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Piirainen V, Gutiérrez AM, Heinonen M, König E, Valros A, Junnikkala S. Salivary and serum haptoglobin, adenosine deaminase, and immunoglobulin G in growing pigs. Porcine Health Manag 2024; 10:21. [PMID: 38773547 PMCID: PMC11110307 DOI: 10.1186/s40813-024-00368-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 04/09/2024] [Indexed: 05/24/2024] Open
Abstract
BACKGROUND Identification of animals in need of medical treatment is important in porcine health management, where analytical samples applicable at farm level could be utilized. Several biomarkers are measurable in saliva, which is less stressful to collect than blood. Saliva sampling is easy to learn and repeatable, making it suitable for monitoring purposes. Previous research suggests that porcine health biomarkers are dependent on production stage and gender, and that combining biomarkers improves diagnostic sensitivity. However, proper monitoring of biomarkers during the complete production cycle has not been studied. We aimed to describe the dynamics of salivary and serum haptoglobin (Hp), adenosine deaminase (ADA), and immunoglobulin G (IgG) in four production stages (suckling, early growing, late growing, finishing), on commercial Finnish pig farms using a total of 117 piglets. The relationship between gender and biomarker dynamics was investigated, as well as the relationships between these biomarkers in saliva and serum. RESULTS The highest salivary concentrations of Hp, ADA and IgG were measured in suckling piglets. The differences between production stages were generally larger in saliva than for the corresponding serum biomarkers. All correlation coefficients between salivary biomarkers were positive in each production stage and the strength of the correlation varied from 0.245 to 0.762. No similar trend was observed regarding correlation coefficients either between serum biomarkers or between salivary and serum biomarkers. Gender was associated with some biomarker concentrations. CONCLUSIONS The biomarker dynamics supported previous findings that collection of analytical samples should be conducted in age-matched populations. Positive and even strong relationships between salivary biomarkers indicate the potential to use especially saliva for health monitoring. Our results also suggest the importance of considering gender effects when assessing some salivary or serum biomarkers.
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Affiliation(s)
- Virpi Piirainen
- Faculty of Veterinary Medicine, Department of Production Animal Medicine, University of Helsinki, Leissantie 41, Saarentaus, FI-04920, Finland
| | - Ana M Gutiérrez
- Department of Animal Medicine and Surgery, BioVetMed Research group, University of Murcia, Campus de Espinardo, Murcia, 30100, Spain
| | - Mari Heinonen
- Faculty of Veterinary Medicine, Department of Production Animal Medicine, University of Helsinki, Leissantie 41, Saarentaus, FI-04920, Finland.
- Research Centre for Animal Welfare, Faculty of Veterinary Medicine, University of Helsinki, Koetilantie 7, Helsinki, FI-00790, Finland.
| | - Emilia König
- Faculty of Veterinary Medicine, Department of Production Animal Medicine, University of Helsinki, Leissantie 41, Saarentaus, FI-04920, Finland
| | - Anna Valros
- Research Centre for Animal Welfare, Faculty of Veterinary Medicine, University of Helsinki, Koetilantie 7, Helsinki, FI-00790, Finland
| | - Sami Junnikkala
- Faculty of Veterinary Medicine, Department of Veterinary Biosciences, University of Helsinki, Agnes Sjöbergin katu 2, Helsinki, FI-00790, Finland
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Kolenchukova OA, Dedora AO, Stepanova LV, Kravchuk VU, Kratasyuk VA. The use of bioluminescent enzyme bioassay for the analysis of human saliva: Advantages and disadvantages. LUMINESCENCE 2024; 39:e4776. [PMID: 38769690 DOI: 10.1002/bio.4776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 04/18/2024] [Accepted: 05/05/2024] [Indexed: 05/22/2024]
Abstract
The purpose of the work was to find optimal conditions for bioluminescent enzymatic analysis of saliva (based on the use of NADH:FMN oxidoreductase + luciferase) and then to determine the biological effect of using bioluminescence assay of saliva to study the physiological state of the body under normal and pathological conditions. The saliva of snowboarders and students were studied in the "rest-training" model. The saliva of patients diagnosed with acute pharyngitis was examined in the "sick-healthy" model. Bioluminescence assay was performed with a lyophilized and immobilized bi-enzyme system using cuvette, plate, and portable luminometers. The concentrations of secretory immunoglobulin A (sIgA) and cortisol were determined by enzyme immunoassay, and the total protein content was measured by spectrophotometric method. The activity of the bioluminescent system enzymes increased as the amount and volume of saliva in the sample was decreased. The cuvette and plate luminometers were sensitive to changes in the luminescence intensity in saliva assay. Luminescence intensity correlated with the concentrations of sIgA and cortisol. The integrated bioluminescent index for saliva was reduced in the "rest-training" model and increased in the "sick-healthy" model. Thus, the non-invasive bioluminescent saliva analysis may be a promising tool for assessing the health of the population.
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Affiliation(s)
- Oksana A Kolenchukova
- School of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russia
- Research Institute of Medical Problems of the North, Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences", Krasnoyarsk, Russia
- Krasnoyarsk State Agrarian University, Krasnoyarsk, Russia
| | - Anastasia O Dedora
- School of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russia
| | - Lyudmila V Stepanova
- School of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russia
| | - Vlada U Kravchuk
- School of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russia
| | - Valentina A Kratasyuk
- School of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russia
- Institute of Biophysics, Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences", Krasnoyarsk, Russia
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Wilson M, Al-Hamid A, Abbas I, Birkett J, Khan I, Harper M, Al-Jumeily Obe D, Assi S. Identification of diagnostic biomarkers used in the diagnosis of cardiovascular diseases and diabetes mellitus: A systematic review of quantitative studies. Diabetes Obes Metab 2024. [PMID: 38637978 DOI: 10.1111/dom.15593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/15/2024] [Accepted: 03/25/2024] [Indexed: 04/20/2024]
Abstract
AIMS To perform a systematic review of studies that sought to identify diagnostic biomarkers for the diagnosis of cardiovascular diseases (CVDs) and diabetes mellitus (DM), which could be used in low- and middle-income countries (LMICs) where there is a lack of diagnostic equipment, treatments and training. MATERIALS AND METHODS Papers were sourced from six databases: the British Nursing Index, Google Scholar, PubMed, Sage, Science Direct and Scopus. Articles published between January 2002 and January 2023 were systematically reviewed by three reviewers and appropriate search terms and inclusion/exclusion criteria were applied. RESULTS A total of 18 studies were yielded, as well as 234 diagnostic biomarkers (74 for CVD and 160 for DM). Primary biomarkers for the diagnosis of CVDs included growth differentiation factor 15 and neurogenic locus notch homologue protein 1 (Notch1). For the diagnosis of DM, alpha-2-macroglobulin, C-peptides, isoleucine, glucose, tyrosine, linoleic acid and valine were frequently reported across the included studies. Advanced analytical techniques, such as liquid chromatography mass spectrometry, enzyme-linked immunosorbent assays and vibrational spectroscopy, were also repeatedly reported in the included studies and were utilized in combination with traditional and alternative matrices such as fingernails, hair and saliva. CONCLUSIONS While advanced analytical techniques are expensive, laboratories in LMICs should carry out a cost-benefit analysis of their use. Alternatively, laboratories may want to explore emerging techniques such as infrared, Fourier transform-infrared and near-infrared spectroscopy, which allow sensitive noninvasive analysis.
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Affiliation(s)
- Megan Wilson
- Faculty of Science, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Abdullah Al-Hamid
- Pharmacy Practice, College of Clinical Pharmacy, King Faisal University, AlAhsa, Saudi Arabia
| | | | - Jason Birkett
- Faculty of Science, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Iftikhar Khan
- Faculty of Science, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Matthew Harper
- Faculty of Engineering and Technology, School of Computer Science and Mathematics, Liverpool John Moores University, Liverpool, UK
| | - Dhiya Al-Jumeily Obe
- Faculty of Engineering and Technology, School of Computer Science and Mathematics, Liverpool John Moores University, Liverpool, UK
| | - Sulaf Assi
- Faculty of Science, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
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Vijayakumar S, Narayan PK, Kumari S, Ranjan R, Kumar V, Kumar A, Alti D. A review of non-invasive samples and tools in kala-azar diagnosis and test of cure. Exp Parasitol 2024; 259:108713. [PMID: 38350522 DOI: 10.1016/j.exppara.2024.108713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/24/2024] [Accepted: 02/05/2024] [Indexed: 02/15/2024]
Abstract
The recurrence of visceral leishmaniasis (VL), also called kala-azar (KA), in endemic regions of tropical countries like India, is primarily attributed to asymptomatic VL, post-kala azar dermal leishmaniasis (PKDL), and human immunodeficiency virus (HIV) co-infection. To effectively manage VL cases and elimination targets, an early and rapid diagnosis as well as accurate field surveillance is highly essential. The traditional sampling methods like bone marrow (BM), spleen, and lymph node (LN) tissue aspirations are invasive, painful, tedious, and prone to nosocomial infections, require skilled persons and hospital facilities, and are not feasible in rural areas. Therefore, there is an urgent requirement for the adoption of a patient-friendly, non-invasive, non-hospitalized sampling procedure that ensures an effective VL diagnosis. This review aims to meticulously evaluate the most recent scientific research that focuses on the precision, feasibility, and applicability of non-invasive sampling (NIS) and techniques for the diagnosis and test of cure of VL, particularly in resource-limited settings. Apart from that, the non-invasive techniques (NIT) that have shown promising results while monitoring VL treatment response and relapse are also reviewed. The limitations associated with NIT and possible improvements in this regard are discussed as well to improve the diagnosis and management of VL.
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Affiliation(s)
- Saravanan Vijayakumar
- National Centre for Disease Informatics and Research (ICMR-NCDIR), Bengaluru, 562110, India.
| | | | - Shobha Kumari
- ICMR-Rajendra Memorial Research Institute of Medical Sciences, Patna, India, 800007.
| | - Ravi Ranjan
- ICMR-Rajendra Memorial Research Institute of Medical Sciences, Patna, India, 800007.
| | - Vikash Kumar
- ICMR-Rajendra Memorial Research Institute of Medical Sciences, Patna, India, 800007.
| | - Ashish Kumar
- ICMR-Rajendra Memorial Research Institute of Medical Sciences, Patna, India, 800007.
| | - Dayakar Alti
- ICMR-Rajendra Memorial Research Institute of Medical Sciences, Patna, India, 800007.
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9
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Shettigar L, Sivaraman S, Rao R, Arun SA, Chopra A, Kamath SU, Rana R. Correlational analysis between salivary and blood glucose levels in individuals with and without diabetes mellitus: a cross-sectional study. Acta Odontol Scand 2024; 83:101-111. [PMID: 37823574 DOI: 10.1080/00016357.2023.2267678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/18/2023] [Accepted: 09/30/2023] [Indexed: 10/13/2023]
Abstract
OBJECTIVE To estimate the association of patient-related demographic, socioeconomic status, physical activity, stress, and dietary factors influencing the relationship between salivary and blood glucose levels in individuals with and without diabetes mellitus (DM). METHOD This cross-sectional study was conducted on 166 participants with and without DM. Saliva and blood were collected to estimate the glucose levels. Age, gender, occupation, socioeconomic and education level, BMI, hip to waist circumference, stress, dietary pattern, lifestyle, physical activity, family history of diabetes, and type of diabetes were recorded. The association of saliva to predict blood glucose levels was analysed using Spearman Rank Correlation and how these patient-related factors influence the correlation was estimated for future machine learning models. The difference in medians for various groups was calculated using the Mann-Whitney U Test or Kruskal Wallis Test. RESULTS Blood glucose level is not significantly correlated to salivary glucose level. However, a statistically significant difference in the median blood glucose levels for diabetic participants (median = 137) compared to healthy controls (p-value < .05) was noted. The correlation between blood and salivary glucose was more positive for higher levels of glucose (Spearman 0.4). Age, alcohol consumption, monthly wages, intake of vegetables, and socioeconomic status affect blood glucose levels. CONCLUSION A correlation between saliva and blood glucose levels in healthy individuals was weak. Saliva should only be used as a monitoring tool rather than a diagnostic tool and is more reliable for patients with poorly controlled diabetes mellitus.
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Affiliation(s)
- Laasya Shettigar
- Department of Periodontology, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Sanchita Sivaraman
- UBC School of Population and Public Health, British Columbia, Vancouver, Canada
| | - Rohini Rao
- Department of Data Science and Computer Applications, Manipal Institute of Technology (MIT), Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Sanjana Akhila Arun
- Department of Data Science and Computer Applications, Manipal Institute of Technology (MIT), Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Aditi Chopra
- Department of Periodontology, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education, Manipal, India.
| | - Shobha U Kamath
- Department of Biochemistry, Kasturba Medical College and Hospital, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Raju Rana
- Department of Biochemistry, Kasturba Medical College and Hospital, Manipal, Manipal Academy of Higher Education, Manipal, India
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10
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Santonocito R, Puglisi R, Cavallaro A, Pappalardo A, Trusso Sfrazzetto G. Cortisol sensing by optical sensors. Analyst 2024; 149:989-1001. [PMID: 38226461 DOI: 10.1039/d3an01801f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
During a stress condition, the human body synthesizes catecholamine neurotransmitters and specific hormones (called "stress hormones"), the most important of which is cortisol. The monitoring of cortisol levels is extremely important for controlling the stress levels. For this reason, it has important medical applications. Common analytical methods (HPLC, GC-MS) cannot be used in real life due to the bulkiness of the instruments and the necessity of specialized operators. Molecular probes solve this problem. This review aims to provide a description of recent developments in this field, focusing on the analytical aspects and the possibility to obtain real practical devices from these molecular probes.
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Affiliation(s)
- Rossella Santonocito
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy.
| | - Roberta Puglisi
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy.
| | - Alessia Cavallaro
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy.
| | - Andrea Pappalardo
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy.
- INSTM Udr of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Giuseppe Trusso Sfrazzetto
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy.
- INSTM Udr of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
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11
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Wei W, Deng Y, Wang Y, Yao H, Du G, Tang G. Dynamic salivary cytokine profile of recurrent aphthous stomatitis patients in thalidomide maintenance treatment. Clin Oral Investig 2024; 28:140. [PMID: 38334890 DOI: 10.1007/s00784-024-05531-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/24/2024] [Indexed: 02/10/2024]
Abstract
OBJECTIVE To dynamically compare the longitudinal (time axis) and transverse (between groups) differences of the salivary cytokines during thalidomide maintenance treatment of recurrent aphthous stomatitis. METHODS A randomized, controlled, clinical trial was performed. After the initial prednisone treatment, thalidomide (50 mg/d vs. 25 mg/d) was used as a maintenance drug for 4 or 8 weeks. The salivary IL-4, 5, 6, 10, TNF-α, and IFN-γ were dynamically detected with a cytometric bead array. RESULTS Overall, the level of six elevated salivary cytokines after prednisone treatment was significantly downregulated, remained low during thalidomide maintenance, and rebounded at recurrence. The effect of 50 mg/d thalidomide on the salivary cytokines was not superior to 25 mg/d medication. The relapse-free period following drug withdrawal was the longest in the subgroup using 25 mg/d thalidomide for 8 weeks. The order of magnitude of IL-6 was the most obvious, and at week 8, only the level of IL-6 in the group (25 mg/d thalidomide for 8 weeks) continued to decline compared with the other groups. CONCLUSION Thalidomide maintenance treatment can effectively sustain low levels of salivary IL-4, 5, 6, 10, TNF-α, and IFN-γ of recurrent aphthous stomatitis patients. IL-6 displayed a good correlation with the disease and is expected to become an index for diagnosis and follow-up. CLINICAL RELEVANCE Low-dose long-term thalidomide maintenance treatment was supported for recurrent aphthous stomatitis. TRIAL REGISTRATION Trial registration number of ChiCTR-IPR-16009759 at http://www.chictr.org/index.aspx .
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Affiliation(s)
- Wei Wei
- Department of Otorhinolaryngology-Head & Neck Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University School of Medicine Ear Institute, Shanghai Key Laboratory of Translational Medicine On Ear and Nose Diseases, Shanghai, 200092, China
| | - Yiwen Deng
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Yufeng Wang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Hui Yao
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Guanhuan Du
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China.
| | - Guoyao Tang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China.
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12
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Wang CF, Li L. Unraveling the potential of segment scan mass spectral acquisition for chemical isotope labeling LC-MS-based metabolome analysis: Performance assessment across different types of biological samples. Anal Chim Acta 2024; 1288:342137. [PMID: 38220274 DOI: 10.1016/j.aca.2023.342137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/26/2023] [Accepted: 12/11/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND Chemical isotope labeling (CIL) LC-MS is a powerful tool for metabolome analysis with high metabolomic coverage and quantification accuracy. In CIL LC-MS, the overall metabolite detection efficiency using Orbitrap MS can be further improved by employing a segment scan method where the full m/z range is divided into multiple segments for spectral acquisition with a significant increase in the in-spectrum dynamic range. Considering the metabolic complexity in different types of biological samples (e.g., feces, urine, serum/plasma, cell/tissue extracts, saliva, etc.), we report the development and evaluation of the segment scan method for metabolome analysis of different sample types. RESULTS It was found that sample complexity significantly influenced the performance of the segment scan method. In metabolically complex samples such as feces and urine, the method yielded a substantial increase (up to 94 %) in detected peak pairs or metabolites, compared to conventional full scan. Conversely, less complex samples like saliva exhibited more modest gains (approximately 25 %). Based on the observations, a 120-m/z segment scan method was determined as a routine approach for CIL LC-Orbitrap-MS-based metabolomics with good compatibility with different types of biological samples. For this method, a further investigation on relative quantification accuracy was done. The peak area ratios of 12C-/13-labeled metabolites were slightly reduced with 72%-84 % of peak pairs falling within the ±25 % range of the anticipated peak ratio of 1.0 among different samples, as opposed to 81%-90 % in the full scan, which was attributed to the inclusion of more low-abundance peak pairs within the narrow MS segments. However, the overall peak ratio measurement precision was not significantly affected by the segment scan. SIGNIFICANCE AND NOVELTY The segment scan method was found to be useful for CIL LC-Orbitrap-MS-based metabolome analysis of different types of samples with significant improvement in metabolite detectability (25-94 % increase), compared to the conventional full scan method.
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Affiliation(s)
- Chu-Fan Wang
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada.
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13
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Kumar P, Gupta S, Das BC. Saliva as a potential non-invasive liquid biopsy for early and easy diagnosis/prognosis of head and neck cancer. Transl Oncol 2024; 40:101827. [PMID: 38042138 PMCID: PMC10701368 DOI: 10.1016/j.tranon.2023.101827] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 12/04/2023] Open
Abstract
Head and neck squamous cell carcinomas (HNSCCs) are the most devastating diseases in India and southeast Asia. It is a preventable and curable disease if detected early. Tobacco and alcohol consumption are the two major risk-factors but infection of high-risk HPVs are also associated with development of predominantly oral and oropharyngeal carcinomas. Interestingly, unlike cervical cancer, HPV-induced HNSCCs show good prognosis and better survival in contrast, majority of tobacco-associated HPV-ve HNSCCs are highly aggressive with poor clinical outcome. Biomarker analysis in circulatory body-fluids for early cancer diagnosis, prognosis and treatment monitoring are becoming important in clinical practice. Early diagnosis using non-invasive saliva for oral or other diseases plays an important role in successful treatment and better prognosis. Saliva mirrors the body's state of health as it comes into direct contact with oral lesions and needs no trained manpower to collect, making it a suitable bio-fluid of choice for screening. Saliva can be used to detect not only virus, bacteria and other biomarkers but variety of molecular and genetic markers for an early detection, treatment and monitoring cancer and other diseases. The performance of saliva-based diagnostics are reported to be highly (≥95 %) sensitive and specific indicating the test's ability to correctly identify true positive or negative cases. This review focuses on the potentials of saliva in the early detection of not only HPV or other pathogens but also identification of highly reliable gene mutations, oral-microbiomes, metabolites, salivary cytokines, non-coding RNAs and exosomal miRNAs. It also discusses the importance of saliva as a reliable, cost-effective and an easy alternative to invasive procedures.
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Affiliation(s)
- Prabhat Kumar
- Stem Cell and Cancer Research Lab, Amity Institute of Molecular Medicine & Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noida 201313, India
| | - Shilpi Gupta
- Stem Cell and Cancer Research Lab, Amity Institute of Molecular Medicine & Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noida 201313, India
| | - Bhudev C Das
- Stem Cell and Cancer Research Lab, Amity Institute of Molecular Medicine & Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noida 201313, India.
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14
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Reseco L, Molina-Crespo A, Atienza M, Gonzalez E, Falcon-Perez JM, Cantero JL. Characterization of Extracellular Vesicles from Human Saliva: Effects of Age and Isolation Techniques. Cells 2024; 13:95. [PMID: 38201299 PMCID: PMC10778510 DOI: 10.3390/cells13010095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/22/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Salivary extracellular vesicles (EVs) represent an attractive source of biomarkers due to the accessibility of saliva and its non-invasive sampling methods. However, the lack of comparative studies assessing the efficacy of different EV isolation techniques hampers the use of salivary EVs in clinical settings. Moreover, the effects of age on salivary EVs are largely unknown, hindering the identification of salivary EV-associated biomarkers across the lifespan. To address these questions, we compared salivary EV concentration, size mode, protein concentration, and purity using eight EV isolation techniques before and after magnetic bead immunocapture with antibodies against CD9, CD63, and CD81. The effects of age on salivary EVs obtained with each isolation technique were further investigated. Results showed higher expression of CD63 on isolated salivary EVs compared to the expression of CD81 and flotillin-1. Overall, magnetic bead immunocapture was more efficient in recovering salivary EVs with Norgen's Saliva Exosome Purification Kit and ExoQuick-TC ULTRA at the cost of EV yield. Regardless of age, Invitrogen Total Exosome Isolation Solution showed the highest level of protein concentration, whereas Izon qEVOriginal-70nm columns revealed the highest purity. This study provides the first comprehensive comparison of salivary EVs in younger and older adults using different EV isolation techniques, which represents a step forward for assessing salivary EVs as a source of potential biomarkers of tissue-specific diseases throughout the life cycle.
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Affiliation(s)
- Lucia Reseco
- Laboratory of Functional Neuroscience, Pablo de Olavide University, 41013 Seville, Spain; (L.R.); (A.M.-C.); (M.A.)
- CIBERNED, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Angela Molina-Crespo
- Laboratory of Functional Neuroscience, Pablo de Olavide University, 41013 Seville, Spain; (L.R.); (A.M.-C.); (M.A.)
- CIBERNED, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Mercedes Atienza
- Laboratory of Functional Neuroscience, Pablo de Olavide University, 41013 Seville, Spain; (L.R.); (A.M.-C.); (M.A.)
- CIBERNED, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Esperanza Gonzalez
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain; (E.G.); (J.M.F.-P.)
| | - Juan Manuel Falcon-Perez
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain; (E.G.); (J.M.F.-P.)
- CIBEREHD, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, 28029 Madrid, Spain
| | - Jose L. Cantero
- Laboratory of Functional Neuroscience, Pablo de Olavide University, 41013 Seville, Spain; (L.R.); (A.M.-C.); (M.A.)
- CIBERNED, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, Instituto de Salud Carlos III, 28029 Madrid, Spain
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15
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Hassan RO. Microextraction with smartphone detection of thiocyanate in saliva of tobacco smokers using paper-based analytical method. J Sep Sci 2024; 47:e2300596. [PMID: 37968809 DOI: 10.1002/jssc.202300596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 11/17/2023]
Abstract
This study presents a novel, cost-effective approach involving spectrophotometric and smartphone paper-based (SPB) methods and a distinctive salting-out air-assisted dispersive microextraction procedure to quantify thiocyanate in saliva samples. The method relies on the inhibitory effect of thiocyanate on quinoneimine dye formation during the Emerson reaction with sodium hypochlorite. Spectrophotometry quantifies the extracted dye by monitoring quinoneimine color intensity reduction at 525 nm. In the SPB method, extracted dye is applied to a paper strip, a smartphone captures the colored paper, and an application analyzes red, green, and blue components. All analyte determination and extraction variables were explored. Both methods exhibit good linearity (10-100 μg/L) with a coefficient of determination of 0.9991 and a limit of detection of 7.5 μg/L for the spectrophotometric method, and a coefficient of determination of 0.9988 and a limit of detection of 8.8 μg/L for the SPB method. The calculated values for the enrichment factor and extraction recovery of the developed extraction methodology were 46% and 93%, respectively. The methods detect thiocyanate in saliva samples, producing results comparable to a validated method.
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Affiliation(s)
- Rebwar Omar Hassan
- Department of Chemistry, College of Science, Salahaddin University, Erbil, Kurdistan Region, Iraq
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16
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Mohammadi F, Zahraee H, Izadpanah Kazemi M, Habibi ZS, Taghdisi SM, Abnous K, Khoshbin Z, Chen CH. Recent advances in aptamer-based platforms for cortisol hormone monitoring. Talanta 2024; 266:125010. [PMID: 37541008 DOI: 10.1016/j.talanta.2023.125010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 07/19/2023] [Accepted: 07/28/2023] [Indexed: 08/06/2023]
Abstract
The stressful conditions of today-life make it urgent the timely prevention and treatment of many physiological and psychological disorders related to stress. According to the significant progress made in the near future, rapid, accurate, and on-spot measurement of cortisol hormone as a dominant stress biomarker using miniaturized digital devices is not far from expected. With a special potency in the fields of diagnosis and healthcare monitoring, aptamer-mediated biosensors (aptasensors) are promising for the quantitative monitoring of cortisol levels in the different matrices (sweat, saliva, urine, cerebrospinal fluid, blood serum, etc.). Accordingly, this in-depth study reviews the superior achievements in the aptasensing strategies to detect cortisol hormone with the synergism of diverse two/three dimensional nanostructured materials, enzymatic amplification components, and antibody motifs. The represented discussions offer a universal perspective to achieve lab-on-chip aptasensing arrays as future user-friendly skin-patchable electronic gadgets for on-site and real-time quantification of cortisol levels.
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Affiliation(s)
- Fatemeh Mohammadi
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamed Zahraee
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Zahra Sadat Habibi
- Department of Environmental Engineering, Faculty of Natural Resources and Environment, University of Birjand, Birjand, Iran
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Khoshbin
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Chih-Hsin Chen
- Department of Chemistry, Tamkang University, New Taipei City, 25137, Taiwan.
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17
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Zarnegar R, Vounta A, Li Q, Ghoreishizadeh SS. Nociception related biomolecules in the adult human saliva: A scoping review with additional quantitative focus on cortisol. Mol Pain 2024; 20:17448069241237121. [PMID: 38385158 PMCID: PMC10916496 DOI: 10.1177/17448069241237121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/30/2024] [Accepted: 02/15/2024] [Indexed: 02/23/2024] Open
Abstract
Nociception related salivary biomolecules can be useful patients who are not able to self-report pain. We present the existing evidence on this topic using the PRISMA-ScR guidelines and a more focused analysis of cortisol change after cold pain induction using the direction of effect analysis combined with risk of bias analysis using ROBINS-I. Five data bases were searched systematically for articles on adults with acute pain secondary to disease, injury, or experimentally induced pain. Forty three articles met the inclusion criteria for the general review and 11 of these were included in the cortisol-cold pain analysis. Salivary melatonin, kallikreins, pro-inflammatory cytokines, soluable TNF-α receptor II, secretory IgA, testosterone, salivary α-amylase (sAA) and, most commonly, cortisol have been studied in relation to acute pain. There is greatest information about cortisol and sAA which both rise after cold pain when compared with other modalities. Where participants have been subjected to both pain and stress, stress is consistently a more reliable predictor of salivary biomarker change than pain. There remain considerable challenges in identifying biomarkers that can be used in clinical practice to guide the measurement of nociception and treatment of pain. Standardization of methodology and researchers' greater awareness of the factors that affect salivary biomolecule concentrations are needed to improve our understanding of this field towards creating a clinically relevant body of evidence.
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Affiliation(s)
- Roxaneh Zarnegar
- Institute of Orthopaedics and Musculoskeletal Science, University College London, London, UK
- Royal National Orthopaedic Hospital NHS Trust, Stanmore, UK
| | - Angeliki Vounta
- Institute of Orthopaedics and Musculoskeletal Science, University College London, London, UK
| | - Qiuyuan Li
- Department of Rehabilitation, Shenzhen University General Hospital, Shenzhen, China
| | - Sara S Ghoreishizadeh
- Institute of Orthopaedics and Musculoskeletal Science, University College London, London, UK
- Department of Electronic and Electrical Engineering, University College London, London, UK
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18
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Nguyen MD, Nguyen KN, Malo S, Banerjee I, Wu D, Du-Thumm L, Dauphin-Ducharme P. Electrochemical Aptamer-Based Biosensors for Measurements in Undiluted Human Saliva. ACS Sens 2023; 8:4625-4635. [PMID: 37992319 DOI: 10.1021/acssensors.3c01624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Although blood remains a gold standard diagnostic fluid for most health exams, it involves an unpleasant and relatively invasive sampling procedure (finger pricking or venous draw). Saliva contains many relevant and useful biomarkers for diagnostic purposes, and its collection, in contrast, is noninvasive and can be obtained with minimal effort. Current saliva analyses are, however, achieved using chromatography or lateral flow assays, which, despite their high accuracy and sensitivity, can demand expensive laboratory-based instruments operated by trained personnel or offer only semiquantitative results. In response, we investigated electrochemical aptamer-based (E-AB) biosensors, a reagentless sensing platform, to allow for continuous and real-time measurements directly in undiluted, unstimulated human whole saliva. As a proof-of-concept study, we developed E-AB biosensors capable of detecting low-molecular-weight analytes (glucose and adenosine monophosphate (AMP)). To our knowledge, we report the first E-AB sensor for glucose, an approach that is inherently independent of its chemical reactivity in contrast to home glucometers. For these three sensors, we evaluated their figures of merits, stability, and reusability over short- and long-term exposure directly in saliva. In doing so, we found that E-AB sensors allow rapid and convenient molecular measurements in whole saliva with unprecedented sensitivities in the pico- to nanomolar regime and could be regenerated and reused up to 7 days when washed and stored in phosphate-buffered saline at room temperature. We envision that salivary molecular measurements using E-AB sensors are a promising alternative to invasive techniques and can be used for improved point-of-care clinical diagnosis and at-home measurements.
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Affiliation(s)
- Minh-Dat Nguyen
- Département de chimie, Université de Sherbrooke, Sherbrooke, Québec J1K 2R1, Canada
| | - Khoa-Nam Nguyen
- Département de chimie, Université de Sherbrooke, Sherbrooke, Québec J1K 2R1, Canada
| | - Samuel Malo
- Département de chimie, Université de Sherbrooke, Sherbrooke, Québec J1K 2R1, Canada
| | - Indrani Banerjee
- Colgate, Research and Development Center, Piscataway, New Jersey 08854, United States
| | - Donghui Wu
- Colgate, Research and Development Center, Piscataway, New Jersey 08854, United States
| | - Laurence Du-Thumm
- Colgate, Research and Development Center, Piscataway, New Jersey 08854, United States
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19
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Yilmaz M, Yay E, Balci N, Toygar H, Kılıc BB, Zirh A, Rivas CA, Kantarci A. Parkinson's disease is positively associated with periodontal inflammation. J Periodontol 2023; 94:1425-1435. [PMID: 37433175 DOI: 10.1002/jper.23-0274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 07/13/2023]
Abstract
BACKGROUND Parkinson's disease (PA) affects 1% of the global population above 60 years. PA pathogenesis involves severe neuroinflammation that impacts systemic and local inflammatory changes. We tested the hypothesis that PA is associated with periodontal tissue inflammation promoting a greater systemic inflammatory burden. METHODS We recruited 60 patients with Stage III, Grade B periodontitis (P) with and without PA (n = 20 for each). We also included systemically and periodontally healthy individuals as controls (n = 20). Clinical periodontal parameters were recorded. Serum, saliva, and gingival crevicular fluid (GCF) samples were collected to measure the inflammatory and neurodegenerative targets (YKL-40, fractalkine, S100B, alpha-synuclein, tau, vascular cell adhesion protein-1 (VCAM-1), brain-derived neurotrophic factor (BDNF), neurofilament light chain (NfL). RESULTS Parkinson's patients in this study had mild to moderate motor dysfunctions, which did not prevent them from performing optimal oral hygiene control. Periodontal parameters and GCF volume were significantly higher in the P and P+PA groups than in the control group. PA was associated with significantly increased bleeding on probing (BOP) compared to P-alone (p < 0.05), while other clinical parameters were similar between P and P+PA groups. In saliva and serum, YKL-40 levels were higher in the P+PA group than in P and C groups (p < 0.001). GCF NfL levels from shallow sites were significantly higher in the P+PA group compared to the C group (p = 0.0462). GCF S100B levels from deep sites were higher in the P+PA group than in healthy individuals (p = 0.0194). CONCLUSION The data suggested that PA is highly associated with increased periodontal inflammatory burden-bleeding upon probing and inflammatory markers-in parallel with PA-related neuroinflammation.
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Affiliation(s)
- Melis Yilmaz
- The Forsyth Institute, Cambridge, Massachusetts, USA
- Medipol University, Faculty of Dentistry, Department of Periodontology, Istanbul, Turkey
| | - Ekin Yay
- The Forsyth Institute, Cambridge, Massachusetts, USA
- Medipol University, Faculty of Dentistry, Department of Periodontology, Istanbul, Turkey
| | - Nur Balci
- Medipol University, Faculty of Dentistry, Department of Periodontology, Istanbul, Turkey
| | - Hilal Toygar
- Medipol University, Faculty of Dentistry, Department of Periodontology, Istanbul, Turkey
| | - Basak Bolluk Kılıc
- Medipol University, Faculty of Medicine, Department of Neurology, Istanbul, Turkey
| | - Ali Zirh
- Medipol University, Faculty of Medicine, Department of Neurology, Istanbul, Turkey
| | - Carla Alvarez Rivas
- The Forsyth Institute, Cambridge, Massachusetts, USA
- Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Alpdogan Kantarci
- The Forsyth Institute, Cambridge, Massachusetts, USA
- Harvard School of Dental Medicine, Boston, Massachusetts, USA
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20
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Zürcher C, Humpel C. Saliva: a challenging human fluid to diagnose brain disorders with a focus on Alzheimer's disease. Neural Regen Res 2023; 18:2606-2610. [PMID: 37449596 DOI: 10.4103/1673-5374.373675] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
Biomarkers are molecules of biological processes that help in both the diagnosis of human diseases and in follow-up assessments of therapeutic responses. Biomarkers can be measured in many human fluids, such as blood, cerebrospinal fluid, urine, and saliva. The -omics methods (genomics, RNomics, proteomics, and metabolomics) are useful at measuring thousands of markers in a small volume. Saliva is a human fluid that is easily accessible, without any ethical concerns. Yet, saliva remains unexplored in regard to many human disease biomarkers. In this review, we will give an overview on saliva and how it can be influenced by exogenous factors. As we focus on the potential use of saliva as a diagnostic tool in brain disorders (especially Alzheimer's disease), we will cover how saliva is linked to the brain. We will discuss that saliva is a heterogeneous human fluid, yet useful for the discovery of biomarkers in human disorders. However, a procedure and consensus that is controlled, validated, and standardized for the collection and processing of saliva is required, followed by a highly sensitive diagnostic approach.
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Affiliation(s)
- Christine Zürcher
- University Hospital for Restorative Dentistry and Periodontology, Medical University of Innsbruck, Innsbruck, Austria
| | - Christian Humpel
- Laboratory of Psychiatry & Experimental Alzheimer's Research, Department of Psychiatry I, Medical University of Innsbruck, Innsbruck, Austria
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21
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Knipping K, Kartaram SW, Teunis M, Zuithoff NPA, Buurman N, M’Rabet L, van Norren K, Witkamp R, Pieters R, Garssen J. Salivary concentrations of secretory leukocyte protease inhibitor and matrix metallopeptidase-9 following a single bout of exercise are associated with intensity and hydration status. PLoS One 2023; 18:e0291297. [PMID: 37992002 PMCID: PMC10664895 DOI: 10.1371/journal.pone.0291297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/25/2023] [Indexed: 11/24/2023] Open
Abstract
AIM To investigate the effects of exercise on salivary concentrations of inflammatory markers by analyzing a panel of 25 inflammatory markers in subjects who had participated in bicycle ergometer tests varying in workload and hydration status. METHODS Fifteen healthy young men (20-35 years) had performed 4 different exercise protocols of 1 hour duration in a randomly assigned cross-over design, preceded by a rest protocol. Individual workloads depended on participant's pre-assessed individual maximum workload (Wmax): rest (protocol 1), 70% Wmax in hydrated (protocol 2) and dehydrated (protocol 3) state, 50% Wmax (protocol 4) and intermittent 85%/55% Wmax in 2 min blocks (protocol 5). Saliva samples were collected before (T0) and immediately after exercise (T1), and at several time points after exercise (2 hours (T3), 3 hours (T4), 6 hours (T5) and 24 hours (T6)). Secretory Leukocyte Protease Inhibitor (SLPI), Matrix Metallopeptidase-9 (MMP-9) and lactoferrin was analyzed using a commercial ELISA kit, a panel of 22 cytokines and chemokines were analyzed using a commercial multiplex immunoassay. Data was analyzed using a multilevel mixed linear model, with multiple test correction. RESULTS Among a panel of 25 inflammatory markers, SLPI concentrations were significantly elevated immediately after exercise in all protocols compared to rest and higher concentrations reflected the intensity of exercise and hydration status. MMP-9 showed a significant increase in the 70% Wmax dehydrated, 50% Wmax and intermittent protocols. CONCLUSIONS Salivary concentrations of SLPI and MMP-9 seem associated with exercise intensity and hydration status and may offer non-invasive biomarkers to study (local) inflammatory responses to different exercise intensities in human studies.
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Affiliation(s)
- Karen Knipping
- Danone Nutricia Research, Utrecht, The Netherlands
- Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Shirley W. Kartaram
- Research Group Innovative Testing in Life Sciences and Chemistry, University of Applied Sciences Utrecht, Utrecht, The Netherlands
| | - Marc Teunis
- Research Group Innovative Testing in Life Sciences and Chemistry, University of Applied Sciences Utrecht, Utrecht, The Netherlands
| | - Nicolaas P. A. Zuithoff
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | | | - Laura M’Rabet
- Research Group Innovative Testing in Life Sciences and Chemistry, University of Applied Sciences Utrecht, Utrecht, The Netherlands
| | - Klaske van Norren
- Nutritional Biology, Division Human Nutrition and Health, Wageningen University & Research, Wageningen, The Netherlands
| | - Renger Witkamp
- Nutritional Biology, Division Human Nutrition and Health, Wageningen University & Research, Wageningen, The Netherlands
| | - Raymond Pieters
- Research Group Innovative Testing in Life Sciences and Chemistry, University of Applied Sciences Utrecht, Utrecht, The Netherlands
- Institute for Risk Assessment Sciences, Immunotoxicology (IRAS), Utrecht University, Utrecht, The Netherlands
| | - Johan Garssen
- Danone Nutricia Research, Utrecht, The Netherlands
- Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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22
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Voidarou C, Rozos G, Stavropoulou E, Giorgi E, Stefanis C, Vakadaris G, Vaou N, Tsigalou C, Kourkoutas Y, Bezirtzoglou E. COVID-19 on the spectrum: a scoping review of hygienic standards. Front Public Health 2023; 11:1202216. [PMID: 38026326 PMCID: PMC10646607 DOI: 10.3389/fpubh.2023.1202216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
The emergence of COVID-19 in Wuhan, China, rapidly escalated into a worldwide public health crisis. Despite numerous clinical treatment endeavors, initial defenses against the virus primarily relied on hygiene practices like mask-wearing, meticulous hand hygiene (using soap or antiseptic solutions), and maintaining social distancing. Even with the subsequent advent of vaccines and the commencement of mass vaccination campaigns, these hygiene measures persistently remain in effect, aiming to curb virus transmission until the achievement of herd immunity. In this scoping review, we delve into the effectiveness of these measures and the diverse transmission pathways, focusing on the intricate interplay within the food network. Furthermore, we explore the virus's pathophysiology, considering its survival on droplets of varying sizes, each endowed with distinct aerodynamic attributes that influence disease dispersion dynamics. While respiratory transmission remains the predominant route, the potential for oral-fecal transmission should not be disregarded, given the protracted presence of viral RNA in patients' feces after the infection period. Addressing concerns about food as a potential viral vector, uncertainties shroud the virus's survivability and potential to contaminate consumers indirectly. Hence, a meticulous and comprehensive hygienic strategy remains paramount in our collective efforts to combat this pandemic.
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Affiliation(s)
| | - Georgios Rozos
- Veterinary Directorate, South Aegean Region, Ermoupolis, Greece
| | - Elisavet Stavropoulou
- Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
| | - Elpida Giorgi
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Christos Stefanis
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Georgios Vakadaris
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Natalia Vaou
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Christina Tsigalou
- Laboratory of Hygiene and Environmental Protection, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Yiannis Kourkoutas
- Laboratory of Applied Microbiology and Biotechnology, Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Eugenia Bezirtzoglou
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
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23
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Lenka S, Bhuyan SK, Bhuyan R. Deregulation of cytokine affecting oral neutrophil subsets in oral cancer. Med Oncol 2023; 40:307. [PMID: 37755539 DOI: 10.1007/s12032-023-02190-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 09/09/2023] [Indexed: 09/28/2023]
Abstract
The most prevalent form of leukocytes in human blood, neutrophils, is regarded as an essential part of the innate immune system and the body's 1st line of defense against foreign invaders. However, divergent opinions arise on the role of neutrophils in cancer, likely due to the occurrence of many neutrophil subsets. Several factors in the tumor microenvironment were found to modify the phenotype and function of neutrophils. Inhibitory cytokine production and recruitment of protumor immune cells to the tumor microenvironment are the reasons for immune suppression. Although some salivary cytokines were found to be increased in cancer patient's saliva, simultaneously, it was observed that those cytokines are high in other oral inflammatory conditions. So, it is challenging to distinguish at what level of expression those cytokines are involved in the neoplastic process. Therefore, the goal of this study is to provide a summary of the current information about the existence and presence of specific cytokines that impact cPMN and TAN and their potential activities in the context of healthy and cancer states so that we can relate to oPMN.
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Affiliation(s)
- Sudhansubala Lenka
- Department of Medical Research, IMS and SUM Hospital, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, Odisha, 751003, India
| | - Sanat Kumar Bhuyan
- Department of Oral Medicine & Radiology, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, Odisha, India
| | - Ruchi Bhuyan
- Department of Medical Research, IMS and SUM Hospital, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, Odisha, 751003, India.
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24
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Rammos A, Bechlioulis A, Kalogeras P, Watson CJ, Salvo P, Lomonaco T, Kardakari O, Tripoliti EE, Goletsis Y, Fotiadis DI, Katsouras CS, Michalis LK, Naka KK. The Potential Role of Salivary NT-proBNP in Heart Failure. Life (Basel) 2023; 13:1818. [PMID: 37763222 PMCID: PMC10532738 DOI: 10.3390/life13091818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/20/2023] [Accepted: 08/23/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Serum natriuretic peptides (NPs) have an established role in heart failure (HF) diagnosis. Saliva NT-proBNP that may be easily acquired has been studied little. METHODS Ninety-nine subjects were enrolled; thirty-six obese or hypertensive with dyspnoea but no echocardiographic HF findings or raised NPs served as controls, thirteen chronic HF (CHF) patients and fifty patients with acute decompensated HF (ADHF) requiring hospital admission. Electrocardiogram, echocardiogram, 6 min walking distance (6MWD), blood and saliva samples, were acquired in all participants. RESULTS Serum NT-proBNP ranged from 60-9000 pg/mL and saliva NT-proBNP from 0.64-93.32 pg/mL. Serum NT-proBNP was significantly higher in ADHF compared to CHF (p = 0.007) and in CHF compared to controls (p < 0.05). There was no significant difference in saliva values between ADHF and CHF, or between CHF and controls. Saliva and serum levels were positively associated only in ADHF patients (R = 0.352, p = 0.012). Serum NT-proBNP was positively associated with NYHA class (R = 0.506, p < 0.001) and inversely with 6MWD (R = -0.401, p = 0.004) in ADHF. Saliva NT-proBNP only correlated with age in ADHF patients. CONCLUSIONS In the current study, saliva NT-proBNP correlated with serum values in ADHF patients, but could not discriminate between HF and other causes of dyspnoea. Further research is needed to explore the value of saliva NT-proBNP.
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Affiliation(s)
- Aidonis Rammos
- 2nd Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina & University Hospital of Ioannina, 45110 Ioannina, Greece (P.K.); (O.K.)
| | - Aris Bechlioulis
- 2nd Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina & University Hospital of Ioannina, 45110 Ioannina, Greece (P.K.); (O.K.)
| | - Petros Kalogeras
- 2nd Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina & University Hospital of Ioannina, 45110 Ioannina, Greece (P.K.); (O.K.)
| | - Chris J. Watson
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University Belfast, Belfast BT9 7BL, UK;
- UCD Conway Institute, School of Medicine, University College Dublin, 4 Dublin, Ireland
| | - Pietro Salvo
- Institute of Clinical Physiology, Italian National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - Tommaso Lomonaco
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy;
| | - Olga Kardakari
- 2nd Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina & University Hospital of Ioannina, 45110 Ioannina, Greece (P.K.); (O.K.)
| | - Evanthia E. Tripoliti
- Department of Biomedical Research, Institute of Molecular Biology and Biotechnology, FORTH, 45110 Ioannina, Greece (Y.G.); (D.I.F.)
| | - Yorgos Goletsis
- Department of Biomedical Research, Institute of Molecular Biology and Biotechnology, FORTH, 45110 Ioannina, Greece (Y.G.); (D.I.F.)
- Department of Economics, University of Ioannina, 45110 Ioannina, Greece
| | - Dimitris I. Fotiadis
- Department of Biomedical Research, Institute of Molecular Biology and Biotechnology, FORTH, 45110 Ioannina, Greece (Y.G.); (D.I.F.)
- Department of Economics, University of Ioannina, 45110 Ioannina, Greece
- Unit of Medical Technology and Intelligent Information Systems, University of Ioannina, 45110 Ioannina, Greece
| | - Christos S. Katsouras
- 2nd Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina & University Hospital of Ioannina, 45110 Ioannina, Greece (P.K.); (O.K.)
| | - Lampros K. Michalis
- 2nd Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina & University Hospital of Ioannina, 45110 Ioannina, Greece (P.K.); (O.K.)
| | - Katerina K. Naka
- 2nd Department of Cardiology, Faculty of Medicine, School of Health Sciences, University of Ioannina & University Hospital of Ioannina, 45110 Ioannina, Greece (P.K.); (O.K.)
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25
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Zhou Y, Liu Z. Saliva biomarkers in oral disease. Clin Chim Acta 2023; 548:117503. [PMID: 37536520 DOI: 10.1016/j.cca.2023.117503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/26/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Saliva is a versatile biofluid that contains a wide variety of biomarkers reflecting both physiologic and pathophysiologic states. Saliva collection is noninvasive and highly applicable for tests requiring serial sampling. Furthermore, advances in test accuracy, sensitivity and precision for saliva has improved diagnostic performance as well as the identification of novel markers especially in oral disease processes. These include dental caries, periodontitis, oral squamous cell carcinoma (OSCC) and Sjögren's syndrome (SS). Numerous growth factors, enzymes, interleukins and cytokines have been identified and are the subject of much research investigation. This review highlights current procedures for successful determination of saliva biomarkers including preanalytical factors associated with sampling, storage and pretreatment as well as subsequent analysis. Moreover, it provides an overview of the diagnostic applications of these salivary biomarkers in common oral diseases.
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Affiliation(s)
- Yuehong Zhou
- Wenzhou Medical University Renji College, Wenzhou, China
| | - Zhenqi Liu
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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26
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Saulle I, Garziano M, Cappelletti G, Limanaqi F, Strizzi S, Vanetti C, Lo Caputo S, Poliseno M, Santantonio TA, Clerici M, Biasin M. Salivary miRNA Profiles in COVID-19 Patients with Different Disease Severities. Int J Mol Sci 2023; 24:10992. [PMID: 37446170 DOI: 10.3390/ijms241310992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/23/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
The oral mucosa is the first site of SARS-CoV-2 entry and replication, and it plays a central role in the early defense against infection. Thus, the SARS-CoV-2 viral load, miRNAs, cytokines, and neutralizing activity (NA) were assessed in saliva and plasma from mild (MD) and severe (SD) COVID-19 patients. Here we showed that of the 84 miRNAs analyzed, 8 were differently expressed in the plasma and saliva of SD patients. In particular: (1) miRNAs let-7a-5p, let-7b-5p, and let-7c-5p were significantly downregulated; and (2) miR-23a and b and miR-29c, as well as three immunomodulatory miRNAs (miR-34a-5p, miR-181d-5p, and miR-146) were significantly upregulated. The production of pro-inflammatory cytokines (IL-1β, IL-2, IL-6, IL-8, IL-9, and TNFα) and chemokines (CCL2 and RANTES) increased in both the saliva and plasma of SD and MD patients. Notably, disease severity correlated with NA and immune activation. Monitoring these parameters could help predict disease outcomes and identify new markers of disease progression.
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Affiliation(s)
- Irma Saulle
- Department of Pathophysiology and Transplantation, University of Milan, Via Francesco Sforza, 20122 Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, 20122 Milan, Italy
| | - Micaela Garziano
- Department of Pathophysiology and Transplantation, University of Milan, Via Francesco Sforza, 20122 Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, 20122 Milan, Italy
| | - Gioia Cappelletti
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, 20122 Milan, Italy
| | - Fiona Limanaqi
- Department of Pathophysiology and Transplantation, University of Milan, Via Francesco Sforza, 20122 Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, 20122 Milan, Italy
| | - Sergio Strizzi
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, 20122 Milan, Italy
| | - Claudia Vanetti
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, 20122 Milan, Italy
| | - Sergio Lo Caputo
- Unit of Infectious Diseases, Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Mariacristina Poliseno
- Unit of Infectious Diseases, Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Teresa Antonia Santantonio
- Unit of Infectious Diseases, Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Mario Clerici
- Department of Pathophysiology and Transplantation, University of Milan, Via Francesco Sforza, 20122 Milan, Italy
- Don C. Gnocchi Foundation, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Foundation, Via A. Capecelatro 66, 20148 Milan, Italy
| | - Mara Biasin
- Department of Biomedical and Clinical Sciences, University of Milan, Via G.B. Grassi, 20122 Milan, Italy
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27
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Rajendra RE, Srikanth S, Kiranmayi M, Swathi SP, Dutta LD, Kumar A. Evaluation of Flow Rate, pH, and Buffering Capacity of Saliva in Children with Caries, Fluorosis, and Caries with Fluorosis. Int J Clin Pediatr Dent 2023; 16:587-590. [PMID: 37731792 PMCID: PMC10507300 DOI: 10.5005/jp-journals-10005-2645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023] Open
Abstract
Background Saliva is one of the most important aids in the diagnosis of various oral diseases. Few physicochemical properties of saliva such as flow rate, pH, and buffering capacity often vary with the occurrence of dental caries, fluorosis, and other systemic conditions. Purpose The aim of the study was to evaluate the relationship between the salivary flow rate, pH, and buffering capacity in healthy children, children with caries, children with fluorosis, and children with both caries + fluorosis. Materials and methods The study population consisted of 144 children aged 7-14 years and were divided into four groups of 36 children each. Group I, 36 healthy children with no caries and fluorosis; group II, 36 children with caries (dmfs ≤ 10); group III, 36 children with fluorosis (moderate to severe); and group IV, 36 children with caries + fluorosis. Unstimulated saliva is collected from all the selected subjects and evaluated for the salivary flow rate, pH, and buffering capacity. The recorded data were tabulated and statistically analyzed using a paired t-test. Results The mean salivary flow rate and buffering capacity were found to be highest in group III when compared with all the other groups. The mean pH was greater in group I when compared with groups I, II, and III. Conclusion The physicochemical properties of saliva like pH, buffering capacity, and salivary flow rate alter with caries and fluorosis conditions. Hence, more clinical and laboratory studies are needed to determine the exact relationship between these physicochemical properties of saliva in dental caries and fluorosis. How to cite this article E RR, S S, M K, et al. Evaluation of Flow Rate, pH, and Buffering Capacity of Saliva in Children with Caries, Fluorosis, and Caries with Fluorosis. Int J Clin Pediatr Dent 2023;16(4):587-590.
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Affiliation(s)
- RE Rajendra
- Department of Pedodontics, Kamineni Institute of Dental Sciences, Nalgonda, Telangana, India
| | - S Srikanth
- Department of Pedodontics, Kamineni Institute of Dental Sciences, Nalgonda, Telangana, India
| | - M Kiranmayi
- Department of Pedodontics, Kamineni Institute of Dental Sciences, Nalgonda, Telangana, India
| | - SP Swathi
- Department of Pedodontics, Kamineni Institute of Dental Sciences, Nalgonda, Telangana, India
| | - Lalitha D Dutta
- Department of Pedodontics, Kamineni Institute of Dental Sciences, Nalgonda, Telangana, India
| | - Anil Kumar
- Department of Pedodontics, Kamineni Institute of Dental Sciences, Nalgonda, Telangana, India
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28
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Casarin RCV, Salmon CR, Stolf CS, Paz HES, Rangel TP, Domingues RR, Pauletti BA, Paes-Leme AF, Araújo C, Santamaria MP, Ruiz KS, Monteiro MF. Salivary annexin A1: A candidate biomarker for periodontitis. J Clin Periodontol 2023; 50:942-951. [PMID: 36935103 DOI: 10.1111/jcpe.13803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 02/03/2023] [Accepted: 02/28/2023] [Indexed: 03/20/2023]
Abstract
AIM To compare the salivary proteomic profile of periodontitis-affected (PA) parents and their offspring to periodontally healthy (PH) dyads in the pursuit of possible biomarkers for early diagnosis of this disease. MATERIALS AND METHODS Unstimulated saliva samples collected from 17 pairs of PA or PH individuals and their children were submitted to mass spectrometric analyses followed by proteomic analyses. Primary PA fibroblasts were triggered towards having an inflammatory response, and an immunoenzymatic assay of its supernatant was performed to validate the obtained data. RESULTS ANXA1, KRT4, GSTP1, HPX, A2M and KRT13 were lower in PA parents and their children, and IGHG1, CSTB, KRT9, SMR3B, IGHG4 and SERPINA1 were higher. ANXA1 presented the highest fold change, 7.1 times less produced in children of PA parents, and was selected as a potential biomarker for periodontitis. The in vitro assay also showed lower ANXA1 production by cells of PA patients. CONCLUSION Before any clinical sign of periodontal loss, descendants of PA patients have an altered proteomic profile compared to PH individuals, presenting a lower abundance of ANXA1. This protein is suggested as a potential biomarker for periodontitis.
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Affiliation(s)
- Renato C V Casarin
- Periodontics Division, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | - Cristiane R Salmon
- Periodontics Division, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | - Camila S Stolf
- Periodontics Division, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | - Hélvis E S Paz
- Periodontics Division, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | - Thiago P Rangel
- Periodontics Division, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | - Romênia R Domingues
- Laboratory of Mass Spectrometry, Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), São Paulo, Brazil
| | - Bianca A Pauletti
- Laboratory of Mass Spectrometry, Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), São Paulo, Brazil
| | - Adriana F Paes-Leme
- Laboratory of Mass Spectrometry, Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), São Paulo, Brazil
| | - Cassia Araújo
- Periodontics Division, Department of Diagnosis and Surgery, São José dos Campos School of Dentistry, São Paulo State University, São Paulo, Brazil
| | - Mauro P Santamaria
- Periodontics Division, Department of Diagnosis and Surgery, São José dos Campos School of Dentistry, São Paulo State University, São Paulo, Brazil
| | - Karina S Ruiz
- Periodontics Division, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | - Mabelle F Monteiro
- Periodontics Division, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
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29
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Hungund SA, Desai VB, Shah M, Shekar MK, Deka A, Sarmah S. Efficacy of nonsurgical periodontal therapy affecting salivary biomarkers in non-diabetic and type 2 diabetic periodontitis patients. An observational study. J Oral Biol Craniofac Res 2023; 13:500-505. [PMID: 37312677 PMCID: PMC10258493 DOI: 10.1016/j.jobcr.2023.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 03/24/2023] [Accepted: 05/27/2023] [Indexed: 06/15/2023] Open
Abstract
Objectives To assess the effects of non-surgical periodontal therapy on salivary biomarkers in non-diabetic and type 2 diabetic periodontitis patients and to investigate if saliva may be used to monitor glucose levels in type 2 diabetes. Material and methods 250 participants with chronic generalized periodontitis aged 35-70 years were divided into two groups: test group with type 2 diabetes (125 subjects with 64 males & 61 females) and control group with non-diabetic (125 subjects with 83 males & 42 females). Participants received non-surgical periodontal treatment. Pre-NSPT and 6-week post-NSPT saliva glucose, amylase, total protein, and C-reactive protein (CRP) levels were measured. Intergroup correlations were assessed using Karl Pearson's correlation coefficient and paired t-test. Results Non-surgical periodontal therapy significantly decreased CRP (p < 0.05) in diabetics and non-diabetics. CRP mean values changes from baseline 1.79 to post op 1.5 and baseline 1.5 to post-op 1.24 in males and females of test group, respectively. In control group males and females, mean values change from baseline 1.48 to post-op 1.42 and 1.499 to 1.40. Other parameters Glucose, amylase & total protein showed improvement in the level, but statistically non-significant (p > 0.05). Salivary glucose levels corresponded favorably with HbA1C levels. Conclusion In individuals with type 2 diabetes and non-diabetic generalized chronic periodontitis, non-surgical periodontal therapy may play a role in lowering the level of significant salivary biomarkers. Saliva can be utilized as a non-invasive approach for monitoring glucose levels in people with type 2 diabetes and chronic periodontitis.
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Affiliation(s)
| | - Vijay Bhaurao Desai
- Ajman University (College of Dentistry), P.O. Box No. 346, Ajman, United Arab Emirates
| | - Mihir Shah
- Dept. of Periodontics, Ahmedabad Dental College and Hospital, Gandhinagar, 382115, Gujarat, India
| | | | - Anupam Deka
- Dept. of Periodontics and Oral Implantology, Regional Dental College, Guwahati, Assam, India
| | - Saswati Sarmah
- Dept. of Periodontics and Oral Implantology, Government Dental College, Dibrugarh, Assam, India
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30
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Lin PH, Nien HH, Li BR. Wearable Microfluidics for Continuous Assay. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2023; 16:181-203. [PMID: 36888989 DOI: 10.1146/annurev-anchem-091322-082930] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development of wearable devices provides approaches for the realization of self-health care. Easily carried wearable devices allow individual health monitoring at any place whenever necessary. There are various interesting monitoring targets, including body motion, organ pressure, and biomarkers. An efficient use of space in one small device is a promising resolution to increase the functions of wearable devices. Through integration of a microfluidic system into wearable devices, embedding complicated structures in one design becomes possible and can enable multifunction analyses within a limited device volume. This article reviews the reported microfluidic wearable devices, introduces applications to different biofluids, discusses characteristics of the design strategies and sensing principles, and highlights the attractive configurations of each device. This review seeks to provide a detailed summary of recent advanced microfluidic wearable devices. The overview of advanced key components is the basis for the development of future microfluidic wearable devices.
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Affiliation(s)
- Pei-Heng Lin
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan;
- Department of Electronics and Electrical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Hsin-Hua Nien
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan;
- College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- Department of Radiation Oncology, Cathay General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Bor-Ran Li
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan;
- Department of Electronics and Electrical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- Center for Emergent Functional Matter of Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
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Kumari S, Samara M, Ampadi Ramachandran R, Gosh S, George H, Wang R, Pesavento RP, Mathew MT. A Review on Saliva-Based Health Diagnostics: Biomarker Selection and Future Directions. BIOMEDICAL MATERIALS & DEVICES (NEW YORK, N.Y.) 2023:1-18. [PMID: 37363139 PMCID: PMC10243891 DOI: 10.1007/s44174-023-00090-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/12/2023] [Indexed: 06/28/2023]
Abstract
The human body has a unique way of saying when something is wrong with it. The molecules in the body fluids can be helpful in the early detection of diseases by enabling health and preventing disease progression. These biomarkers enabling better healthcare are becoming an extensive area of research interest. Biosensors that detect these biomarkers are becoming the future, especially Point Of Care (POC) biosensors that remove the need to be physically present in the hospital. Detection of complex and systemic diseases using biosensors has a long way to go. Saliva-based biosensors are gaining attention among body fluids due to their non-invasive collection and ability to detect periodontal disease and identify systemic diseases. The possibility of saliva-based diagnostic biosensors has gained much publicity, with companies sending home kits for ancestry prediction. Saliva-based testing for covid 19 has revealed effective clinical use and relevance of the economic collection. Based on universal biomarkers, the detection of systemic diseases is a booming research arena. Lots of research on saliva-based biosensors is available, but it still poses challenges and limitations as POC devices. This review paper talks about the relevance of saliva and its usefulness as a biosensor. Also, it has recommendations that need to be considered to enable it as a possible diagnostic tool. Graphical Abstract
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Affiliation(s)
- Swati Kumari
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL USA
| | - Mesk Samara
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL USA
| | | | - Sujoy Gosh
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL USA
| | - Haritha George
- Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL USA
| | - Rong Wang
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, IL USA
| | - Russell P. Pesavento
- Department of Oral Biology, College of Dentistry, University of Illinois at Chicago, Chicago, IL USA
| | - Mathew T. Mathew
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL USA
- Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL USA
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Tommasini M, Lucotti A, Stefani L, Trusso S, Ossi PM. SERS Detection of the Anti-Epileptic Drug Perampanel in Human Saliva. Molecules 2023; 28:molecules28114309. [PMID: 37298786 DOI: 10.3390/molecules28114309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
Surface-Enhanced Raman Scattering (SERS) can obtain the spectroscopic response of specific analytes. In controlled conditions, it is a powerful quantitative technique. However, often the sample and its SERS spectrum are complex. Pharmaceutical compounds in human biofluids with strong interfering signals from proteins and other biomolecules are a typical example. Among the techniques for drug dosage, SERS was reported to detect low drug concentrations, with analytical capability comparable to that of the assessed High-Performance Liquid Chromatography. Here, for the first time, we report the use of SERS for Therapeutic Drug Monitoring of the Anti-Epileptic Drug Perampanel (PER) in human saliva. We used inert substrates decorated with gold NPs deposited via Pulsed Laser Deposition as SERS sensors. We show that it is possible to detect PER in saliva via SERS after an optimized treatment of the saliva sample. Using a phase separation process, it is possible to extract all the diluted PER in saliva from the saliva phase to a chloroform phase. This allows us to detect PER in the saliva at initial concentrations of the order of 10-7 M, thus approaching those of clinical interest.
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Affiliation(s)
- Matteo Tommasini
- Dipartimento Chimica, Materiali, Ing. Chimica, Politecnico di Milano, 20133 Milano, Italy
| | - Andrea Lucotti
- Dipartimento Chimica, Materiali, Ing. Chimica, Politecnico di Milano, 20133 Milano, Italy
| | - Luca Stefani
- Dipartimento Energia, Politecnico di Milano, 20133 Milano, Italy
| | - Sebastiano Trusso
- Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, 98158 Messina, Italy
| | - Paolo M Ossi
- Dipartimento Energia, Politecnico di Milano, 20133 Milano, Italy
- Dipartimento Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, 98166 Messina, Italy
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Broche N, Mouri K, Suzumura T, Huffman MA. Measuring short-term changes in stress-associated salivary analytes in free-ranging Japanese macaques (Macaca fuscata). Primates 2023:10.1007/s10329-023-01067-8. [PMID: 37165180 DOI: 10.1007/s10329-023-01067-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 04/06/2023] [Indexed: 05/12/2023]
Abstract
Monitoring short-term changes of endocrine responses in non-human primates living in wild populations is a challenge. Saliva contains enzymes, steroids, and various analytes that can be broadly useful for helping us understand physiological responses to social and environmental sources of stress as well as other compromises to an individual's health homeostasis. Salivary alpha-amylase and salivary cortisol are known to respond rapidly to stress, which can allow us to use these analytes to monitor stress on a time scale of minutes. We developed a non-invasive methodology for the collection of saliva and verified its applicability by conducting short-term interval sampling of focal individuals under varying social conditions in a group of semi-provisioned free-ranging Japanese macaques (Macaca fuscata) living endemically on the island of Koshima, Miyazaki prefecture, Japan. Monkeys were habituated to sampling by using ingestive attractants applied to cotton ropes. Their receptivity to chewing on the saliva sampling material provided and chewing time was recorded ad libitum during the initial habituation period of the troop to the sampling procedure. Focal animal behavior observations were conducted in conjunction with saliva sampling. Salivary analytes associated with stress, alpha-amylase and cortisol, were measured via enzyme immunoassay. Short-term changes in salivary alpha-amylase and salivary cortisol were examined in relation to short-term changes in social behavior, in particular aggression or grooming. We tested flow-rate effects in both analytes and found strong correlations between original sample results and their respective flow-rate transformed equivalents. Additionally, temperature effects on samples were tested and both analytes showed nearly the same values when stored at - 20, 4, and 30 °C conditions for 6 h; important information expected to facilitate future sampling in field conditions where freezer storage is uncertain. Our study shows that saliva can be repeatedly sampled non-invasively to investigate short-term changes in stress-associated markers in free-ranging Japanese macaques.
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Affiliation(s)
- Nelson Broche
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan.
- Wildlife Research Center, Kyoto University, Kyoto, Japan.
| | - Keiko Mouri
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
- Wildlife Research Center, Kyoto University, Kyoto, Japan
| | | | - Michael A Huffman
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
- Wildlife Research Center, Kyoto University, Kyoto, Japan
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Liu M, He D, Liu Z, Hu C. Disposable solar microcell array-based addressable photoelectrochemical sensor for high-throughput and multiplexed analysis of salivary metabolites. Biosens Bioelectron 2023; 232:115312. [PMID: 37060863 DOI: 10.1016/j.bios.2023.115312] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/16/2023] [Accepted: 04/08/2023] [Indexed: 04/17/2023]
Abstract
The high-throughput detection of multiple metabolites in saliva by electrochemical sensors is usually a challenge, which however is essential to the comprehensive evaluation of health status or screening of diseases. Here, a light-addressable and paper-based hydrogen peroxide (H2O2) photoelectrochemical (PEC) sensor for the high-throughput detection of multiple salivary metabolites is reported. This sensor has a unique solar microcell array structure with a silver nanowires/fullerene-Congo red (AgNWs/C60-CR) disc working electrode (WE) and a single-walled carbon nanotubes/platinum nanowires (SWCNTs/PtNWs) ring reference/counter electrode (RE/CE) in each microcell. Enzymes of different metabolites are immobilized on different separated microcells of a cover slide over the sensor, from which enzymatically produced H2O2 can react with p-hydroxyphenyl boric acid (4-HPBA) on the WE of the sensor to generate hydroquinone (HQ) for photocurrent responses. Based on this strategy, a disposable PEC sensor of saliva was developed, which allows the multiplexed detection of uric acid (UA), glucose (GLU) and lactate (LA) in diluted human saliva with high sensitivity and selectivity. Moreover, the detection throughput and application field of the sensor can be easily extended by connecting a series of sensors in parallel or varying the enzymes. The present work thus establishes a cost-effective approach to the scalable construction of versatile biosensing platforms with tunable throughput and varied analytes.
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Affiliation(s)
- Min Liu
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China
| | - Danting He
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Zhihong Liu
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China.
| | - Chengguo Hu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
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Mavroudis I, Petridis F, Balmus IM, Ciobica A, Gorgan DL, Luca AC. Review on the Role of Salivary Biomarkers in the Diagnosis of Mild Traumatic Brain Injury and Post-Concussion Syndrome. Diagnostics (Basel) 2023; 13:diagnostics13081367. [PMID: 37189468 DOI: 10.3390/diagnostics13081367] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/27/2023] [Accepted: 04/05/2023] [Indexed: 05/17/2023] Open
Abstract
(1) Background: While mild traumatic brain injuries (TBIs) are a major public health issue, post-concussion syndrome (PCS) remains a controversial entity. In both cases, the clinical diagnosis is mainly based on the symptoms and brain imaging evaluation. The current molecular biomarkers were described from blood and cerebrospinal fluid (CSF), yet both fluid collection methods are invasive. Saliva could be preferred in molecular diagnosis due to its non-invasive and non-expensive methods of acquisition, transport, and samples processing. (2) Objectives: In the present study, we aimed to review the latest developments in salivary biomarkers and their potential role in diagnosing mild TBIs, and PCS. (3) Results: In TBIs and PCS, a few novel studies focusing on salivary biomarkers have emphasized their importance in diagnosis. The previous studies mainly focused on micro RNAs, and only a few on extracellular vesicles, neurofilament light chain, and S100B. (4) Conclusions: The combination between salivary biomarkers, clinical history and examination, self-reported symptoms, and cognitive/balance testing can provide a non-invasive alternative diagnostic methodology, as compared to the currently approved plasma and cerebrospinal fluid biomarkers.
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Affiliation(s)
- Ioannis Mavroudis
- Department of Neurology, Leeds Teaching Hospitals NHS Trust, Leeds LS9 7TF, UK
- Faculty of Medicine, Leeds University, Leeds LS2 9JT, UK
| | - Foivos Petridis
- Third Department of Neurology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - Ioana-Miruna Balmus
- Department of Exact Sciences and Natural Sciences, Institute of Interdisciplinary Research, Alexandru Ioan Cuza University of Iasi, Alexandru Lapusneanu Street, No. 26, 700057 Iasi, Romania
| | - Alin Ciobica
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, B dul Carol I, No. 11, 700506 Iasi, Romania
| | - Dragos Lucian Gorgan
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, B dul Carol I, No. 11, 700506 Iasi, Romania
| | - Alina Costina Luca
- Department of Mother and Child, Medicine-Pediatrics, "Grigore T. Popa" University of Medicine and Pharmacy, 16, Universitatii Street, 700115 Iasi, Romania
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Fan Z, Li Z, Zhao S, Chen Y, Su Y, Peng G, Luo B. Salivary Aβ 1-42 may be a quick-tested biomarker for clinical use in Alzheimer's disease: a meta-analysis. J Neurol 2023; 270:1945-1954. [PMID: 36562850 DOI: 10.1007/s00415-022-11509-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Alzheimer's disease (AD) is the most prevalent form of dementia among the aging population. Cumulative studies aim to find non-invasive biomarkers in the early stages of AD. Saliva can be obtained easily, and salivary biomarkers have been proven effective in detecting neurodegenerative diseases. To find effective biomarkers in saliva and to help the diagnosis of AD, we performed a meta-analysis focusing on the salivary biomarkers (β-amyloid 1-42 (Aβ1-42), total tau (t-tau), phosphorylated tau (p-tau) and acetylcholinesterase (AChE)) in AD. METHODS We conducted a systematic online search for eligible studies reporting data on salivary biomarkers reflecting Aβ1-42, t-tau, p-tau, and AChE in AD cohorts versus controls. Biomarkers' performance was assessed in a random-effects meta-analysis with the ratio of mean (RoM). RESULTS A total of thirteen studies were included in the meta-analysis, of them seven involved salivary Aβ1-42 (271 AD and 489 controls), five involved salivary t-tau (324 AD and 252 controls), four involved salivary p-tau (130 AD and 161 controls), and three involved salivary AChE (81 AD and 54 controls). AD showed significantly higher salivary Aβ1-42 levels than control (ROM = 1.90 (95% CI 1.28-2.81, P = 0.001), while AD and control did not differ significantly on salivary t-tau, p-tau and AChE (ROM = 0.94, 95% CI 0.67-1.31, P = 0.72; ROM = 0.91, 95% CI 0.56-1.45, P = 0.68; ROM = 0.83, 95% CI 0.24-2.88, P = 0.77; respectively). CONCLUSION The pooled results provide evidence that salivary Aβ1-42 may serve as a sensitive biomarker for AD; nevertheless, larger AD cohorts are required to further confirm the sensitivity and specificity of salivary Aβ1-42 for AD diagnosis.
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Affiliation(s)
- Ziqi Fan
- Department of Neurology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Zheyu Li
- Department of Neurology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Shuai Zhao
- Department of Neurology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Yanxing Chen
- Department of Neurology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Yujie Su
- Department of Neurology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Guoping Peng
- Department of Neurology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Benyan Luo
- Department of Neurology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.
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Abboud CS, Brandão EHDS, Cunha KRL, de Sousa Brito K, Gallo CDB, Molon AC, Horliana ACRT, Franco ASL, Thongprasom K, Rodrigues MFSD. Serum and salivary cytokines in patients with oral lichen planus treated with Photobiomodulation. Oral Dis 2023; 29:1250-1258. [PMID: 34817126 DOI: 10.1111/odi.14084] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/15/2021] [Accepted: 11/08/2021] [Indexed: 01/22/2023]
Abstract
OBJECTIVES To evaluate the serum and salivary levels of IL-1β, IL-6, IL-17A, TNF-α, IL-4, and IL-10 in patients with oral lichen planus (OLP) treated with Photobiomodulation (PBM) and clobetasol propionate 0.05%. MATERIAL AND METHODS Thirty-four OLP patients were randomized into two groups: Control (clobetasol propionate 0.05%) and PBM (660 nm, 100 mW, 177 J/cm2 , 5 s, 0.5 J per point). Serum and saliva were collected at baseline and at the end of treatment (after 30 days) and evaluated using ELISA. The cytokine results were correlated with pain, clinical subtypes, and clinical scores of OLP. RESULTS IL-1β, IL-6, IL-17A, TNF-α, and IL-4 levels were higher in saliva in relation to serum. IL-1β was the most concentrated cytokine in saliva, and a positive correlation with the severity of OLP was noticed. After treatment with corticosteroid, IL-1β in saliva decreased significantly. No modulation of all cytokines was observed after PBM. CONCLUSION IL-1β appears to be an important cytokine involved in OLP pathogenesis. In addition, the mechanisms of action of PBM do not seem to be linked to the modulation of pro or anti-inflammatory cytokines at the end of treatment. It is possible that this events occurred early during treatment.
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Affiliation(s)
- Clery Saad Abboud
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University, UNINOVE, São Paulo, Brazil
| | | | - Karen Roberta Lopes Cunha
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University, UNINOVE, São Paulo, Brazil
| | - Kaline de Sousa Brito
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University, UNINOVE, São Paulo, Brazil
| | - Camila de Barros Gallo
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Angela Cristina Molon
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University, UNINOVE, São Paulo, Brazil
| | | | - Adriana Santos Lino Franco
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University, UNINOVE, São Paulo, Brazil
| | - Kobkan Thongprasom
- Oral Medicine Department, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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Bornes R, Montero J, Correia A, Marques T, Rosa N. Peri-implant diseases diagnosis, prognosis and dental implant monitoring: a narrative review of novel strategies and clinical impact. BMC Oral Health 2023; 23:183. [PMID: 36997949 PMCID: PMC10061972 DOI: 10.1186/s12903-023-02896-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/17/2023] [Indexed: 04/01/2023] Open
Abstract
BACKGROUND The diagnosis of peri-implantar and periodontal relies mainly on a set of clinical measures and the evaluation of radiographic images. However, these clinical settings alone are not sufficient to determine, much less predict, periimplant bone loss or future implant failure. Early diagnosis of periimplant diseases and its rate of progress may be possible through biomarkers assessment. Once identified, biomarkers of peri-implant and periodontal tissue destruction may alert the clinicians before clinical signs show up. Therefore, it is important to consider developing chair-side diagnostic tests with specificity for a particular biomarker, indicating the current activity of the disease. METHODS A search strategy was created at Pubmed and Web of Science to answer the question: "How the molecular point-of-care tests currently available can help in the early detection of peri-implant diseases and throws light on improvements in point of care diagnostics devices?" RESULTS The PerioSafe® PRO DRS (dentognostics GmbH, Jena) and ImplantSafe® DR (dentognostics GmbH, Jena ORALyzer® test kits, already used clinically, can be a helpful adjunct tool in enhancing the diagnosis and prognosis of periodontal/peri-implantar diseases. With the advances of sensor technology, the biosensors can perform daily monitoring of dental implants or periodontal diseases, making contributions to personal healthcare and improve the current status quo of health management and human health. CONCLUSIONS Based on the findings, more emphasis is given to the role of biomarkers in diagnosing and monitoring periodontal and peri-implant diseases. By combining these strategies with traditional protocols, professionals could increase the accuracy of early detection of peri-implant and periodontal diseases, predicting disease progression, and monitoring of treatment outcomes.
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Affiliation(s)
- Rita Bornes
- Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, Viseu, Portugal.
| | - Javier Montero
- Department of Surgery, Faculty of Medicine, University of Salamanca, Salamanca, Spain
| | - André Correia
- Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, Viseu, Portugal
| | - Tiago Marques
- Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, Viseu, Portugal
| | - Nuno Rosa
- Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Universidade Católica Portuguesa, Viseu, Portugal
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Sales-Peres SHDC, Houghton J, Meira GDF, de Moura-Grec PG, Brienze SLA, Karim BA, Carpenter GH. Salivary Adiponectin and Albumin Levels on the Gingival Conditions of Patients Undergoing Bariatric Surgery: A Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5261. [PMID: 37047877 PMCID: PMC10094151 DOI: 10.3390/ijerph20075261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/16/2023] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
This study analyzed the salivary proteomics, adiponectin and albumin, related to weight loss and periodontitis in patients undergoing bariatric surgery. This study included fourteen patients with morbid obesity (body mass index, BMI > 40 kg/m2) who underwent bariatric surgery Roux-en-Y gastric bypass (RYGB) in System Health Public in Brazil. Data on demographic and anthropometric measures were extracted from medical records preoperatively and 6 and 12 months post-surgery. The variables assessed were: probing pocket depth (PPD), clinical attachment loss (CAL), bleeding on probing (BOP), and stimulated whole-mouth saliva. In this study, saliva samples were analyzed by electrophoresis and immunoblotting. The ELISA kit was used to measure the MMP8 levels to determine potential markers for obesity. Adiponectin and albumin levels were also evaluated. Weight loss was associated with significant changes in patients' periodontal clinical data. Although 7 out of 10 periodontal patients showed an increase in salivary adiponectin levels after root planning treatment, when analyzed by Western blotting, the increase was not statistically significant (21.1 ± 4.8 to 26.3 ± 9.4 arbitrary units, p > 0.99). There was no correlation between albumin levels and salivary adiponectin pre-surgery, nor 6 months or 12 months after surgery. Weight loss was not improved by low-grade inflammation in bariatric patients, since albumin levels were similar between periods. Periodontitis is an inflammatory disease that is modulated by several factors, among which adiponectin plays an important role for the treatment of periodontal disease.
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Affiliation(s)
| | - Jack Houghton
- Department of Surgery, Faculty of Medicine of Sao Jose do Rio Preto, São José do Rio Preto 15090-000, Brazil
| | - Gabriela de Figueiredo Meira
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru 17012-901, Brazil
| | - Patrícia Garcia de Moura-Grec
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru 17012-901, Brazil
| | | | - Belkais Abuuasha Karim
- Center for Host-Microbiome Interactions, Faculty of Dental, Oral and Craniofacial Sciences, King’s College London, London WC2R 2LS, UK
| | - Guy Howard Carpenter
- Center for Host-Microbiome Interactions, Faculty of Dental, Oral and Craniofacial Sciences, King’s College London, London WC2R 2LS, UK
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Ortín-Bustillo A, Escribano D, Martínez-Subiela S, Tvarijonaviciute A, Muñoz-Prieto A, López-Arjona M, Cerón JJ, Tecles F. Trace Elements and Ferritin in Pig Saliva: Variations during Fattening, Time of Sampling, Effect of Dirtiness and Stability under Different Storage Conditions. Antioxidants (Basel) 2023; 12:antiox12030649. [PMID: 36978897 PMCID: PMC10045741 DOI: 10.3390/antiox12030649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/08/2023] Open
Abstract
The objective of this study was to evaluate the possible changes of zinc (Zn), copper (Cu), iron (Fe) and ferritin during the entire productive cycle in fattening pigs and at different diurnal sampling times. Moreover, the possible effects of the presence of pen contaminants and storage stability at different temperature conditions were assessed. The analytes changed along the different phases of the fattening productive cycle, showing, in general, higher values at the initial phases. In addition, statistically significant variations were found in Zn and Cu measurements at different sampling times of the day. In the spectrophotometric assays, the values of all analytes significantly increased after adding high concentrations of feces or feed. However, when low concentrations of feces or feed were added, only Cu showed a significant increase. Overall, the salivary levels of Zn, Cu, Fe and ferritin in pigs can change during different fattening phases and the different hours of the day. These analytes were more stable at −80 °C and, if saliva is contaminated with feces or feed, it can lead to an increase in these analytes.
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Affiliation(s)
- Alba Ortín-Bustillo
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain
| | - Damián Escribano
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain
- Department of Animal Production, Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain
| | - Silvia Martínez-Subiela
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain
| | - Asta Tvarijonaviciute
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain
| | - Alberto Muñoz-Prieto
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain
| | - Marina López-Arjona
- Department of Animal and Food Science, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - José J. Cerón
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain
| | - Fernando Tecles
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Regional Campus of International Excellence ‘Campus Mare Nostrum’, University of Murcia, Campus de Espinardo s/n, 30100 Murcia, Spain
- Correspondence: ; Tel.: +34-868-887-082
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Rebouças CEV, Diniz JARA, de Sousa ACFC, de Oliveira REM, de Moura CEB, Guerra RR, Pereira AF, de Assis Neto AC, de Oliveira MF. Morphology of the major salivary glands of Spix's
Yellow‐Toothed
Cavys (
Galea spixii
Wagler
, 1831). ACTA ZOOL-STOCKHOLM 2023. [DOI: 10.1111/azo.12456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Carlos Eduardo Vale Rebouças
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | - João Augusto Rodrigues Alves Diniz
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | | | - Radan Elvis Matias de Oliveira
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | - Carlos Eduardo Bezerra de Moura
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | - Ricardo Romão Guerra
- Laboratory of Histology, Department of Veterinary Sciences Universidade Federal da Paraíba Areia PB Brazil
| | - Alexsandra Fernandes Pereira
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
| | - Antônio Chaves de Assis Neto
- Department of Surgery, Anatomy of Domestic and Wild Animals Sector, School of Veterinary Medicine Universidade de São Paulo São Paulo SP Brazil
| | - Moacir Franco de Oliveira
- Applied Animal Morphophysiology Laboratory, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
- Postgraduate Program in Animal Science, Department of Animal Sciences Universidade Federal Rural do Semi‐Árido Mossoró RN Brazil
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Qualitative and Quantitative Mass Spectrometry in Salivary Metabolomics and Proteomics. Metabolites 2023; 13:metabo13020155. [PMID: 36837774 PMCID: PMC9964739 DOI: 10.3390/metabo13020155] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
The metabolomics and proteomics analysis of saliva, an excellent biofluid that is a rich source of biological compounds, allows for the safe and frequent screening of drugs, their metabolites, and molecular biomarkers of various diseases. One of the most frequently used analytical methods in saliva analysis is liquid chromatography coupled with mass spectrometry (LC-MS) and tandem mass spectrometry. The low ionisation efficiency of some compounds and a complex matrix makes their identification by MS difficult. Furthermore, quantitative analysis by LC-MS frequently cannot be performed without isotopically labelled standards, which usually have to be specially synthesised. This review presented reports on qualitative and quantitative approaches in salivary metabolomics and proteomics. The purpose of this manuscript was to present the challenges, advances, and future prospects of mass spectrometry, both in the analysis of salivary metabolites and proteins. The presented review should appeal to those interested in the recent advances and trends in qualitative and quantitative mass spectrometry in salivary metabolomics and proteomics, which may facilitate a diagnostic accuracy, the evaluation of treatment efficacy, the early diagnosis of disease, and a forensic investigation of some unapproved drugs for any medical or dietary administration.
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Applications of Mass Spectrometry in Dentistry. Biomedicines 2023; 11:biomedicines11020286. [PMID: 36830822 PMCID: PMC9953492 DOI: 10.3390/biomedicines11020286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/21/2023] Open
Abstract
Mass Spectrometry (MS) is one of the fastest-developing methods in analytical instrumentation. As a highly sensitive, universal detector, it can identify known and unknown compounds, which can indeed be found in a minimal concentration. This review aims to highlight the significant milestones in MS applications in dentistry during recent decades. MS can be applied in three different fields of dentistry: (1) in research of dental materials and chemical agents, (2) in laboratory analysis of biospecimens, and (3) as a real-time diagnostic tool in service of oral surgery and pathology. MS applications on materials and agents may focus on numerous aspects, such as their clinical behavior, possible toxicity, or antimicrobial properties. MS is also a valuable, non-invasive tool for biomarkers' detection in saliva and has found great application in -omics technologies as it achieves efficient structure-finding in metabolites. As metabolites are located beyond the central dogma, this technique can provide a complete understanding of cellular functions. Thus, it is possible to determine the biological profile in normal and pathological conditions, detect various oral or systematic diseases and conditions, and predict their course. Lastly, some promising advances concerning the surgical approach to potentially oral malignant or malignant disorders exist. This breakthrough method provides a comprehensive approach to dental materials research and biomarker discovery in dental and craniofacial tissues. The current availability of various 'OMIC' approaches paves the way for individualized dentistry and provides suggestions for clinical applications in the point-of-care hubs.
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Chronic Training Induces Metabolic and Proteomic Response in Male and Female Basketball Players: Salivary Modifications during In-Season Training Programs. Healthcare (Basel) 2023; 11:healthcare11020241. [PMID: 36673609 PMCID: PMC9858989 DOI: 10.3390/healthcare11020241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/09/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
The aim of this study was to characterize the salivary proteome and metabolome of highly trained female and male young basketball players, highlighting common and different traits. A total of 20 male and female basketball players (10 female and 10 male) and 20 sedentary control subjects (10 female and 10 male) were included in the study. The athletes exercised at least five times per week for 2 h per day. Saliva samples were collected mid-season, between 9:00 and 11:00 a.m. and away from sport competition. The proteome and metabolome were analyzed by using 2DE and GC-MS techniques, respectively. A computerized 2DE gel image analysis revealed 43 spots that varied in intensity among groups. Between these spots, 10 (23.2%) were differentially expressed among male athletes and controls, 22 (51.2%) between female basketball players and controls, 11 spots (25.6%) between male and female athletes, and 13 spots (30.2%) between male and female controls. Among the proteins identified were Immunoglobulin, Alpha-Amylase, and Dermcidin, which are inflammation-related proteins. In addition, several amino acids, such as glutamic acid, lysine, ornithine, glycine, tyrosine, threonine, and valine, were increased in trained athletes. In this study, we highlight that saliva is a useful biofluid to assess athlete performance and confirm that the adaptation of men and women to exercise has some common features, but also some different sex-specific behaviors, including differential amino acid utilization and expression of inflammation-related proteins, which need to be further investigated. Moreover, in the future, it will be interesting to examine the influence of sport-type on these differences.
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Castillo-Navarrete JL, Guzmán-Castillo A, Bustos C, Rojas R. Peripheral brain-derived neurotrophic factor (BDNF) and salivary cortisol levels in college students with different levels of academic stress. Study protocol. PLoS One 2023; 18:e0282007. [PMID: 36812175 PMCID: PMC9946253 DOI: 10.1371/journal.pone.0282007] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 02/05/2023] [Indexed: 02/24/2023] Open
Abstract
INTRODUCTION Brain-derived neurotrophic factor (BDNF) is essential for brain physiological processes influencing memory and learning. BDNF levels can be affected by many factors, including stress. Stress increase serum and salivary cortisol levels. Academic stress is of the chronic type. BDNF levels can be measure from serum, plasma or platelets, and there is still no standard methodology, which is relevant to ensure reproducibility and comparability between studies. HYPOTHESIS (i) BDNF concentrations in serum show greater variability than in plasma. (ii) In college students with academic stress, peripheral BDNF decreases and salivary cortisol increases. GENERAL OBJECTIVE To standardize plasma and serum collection for BDNF levels and to determine whether academic stress affects peripheral BDNF and salivary cortisol levels. DESIGN Quantitative research, with a non-experimental cross-sectional descriptive design. PARTICIPANTS Student volunteers. Under convenience sampling, 20 individuals will be included for standardization of plasma and serum collection and between 70 and 80 individuals to determine the effect of academic stress on BDNF and salivary cortisol. PERIPHERAL BLOOD AND SALIVARY CORTISOL SAMPLING, MEASUREMENTS 12 mL of peripheral blood (with and without anticoagulant) will be drawn per participant, separated from plasma or serum and cryopreserved at -80°C. Additionally, they will be instructed in the collection of 1 mL of saliva samples, which will be centrifuged. Val66Met polymorphism will be performed by allele-specific PCR, while BDNF and salivary cortisol levels will be determined by ELISA. STATISTICAL ANALYSIS (i) descriptive analysis of the variables, through measures of central tendency and dispersion, and the categorical variables through their frequency and percentage. (ii) Then a bivariate analysis will be performed comparing groups using each variable separately. EXPECTED RESULTS We expect to (i) determine the analytical factors that allow a better reproducibility in the measurement of peripheral BDNF, and (ii) the effect of academic stress on BDNF and salivary cortisol levels.
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Affiliation(s)
- Juan-Luis Castillo-Navarrete
- Departamento de Tecnología Médica, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
- Programa de Neurociencia, Psiquiatría y Salud Mental, NEPSAM (http://nepsam.udec.cl), Universidad de Concepción, Concepción, Chile
- * E-mail: (JLCN); (AGC)
| | - Alejandra Guzmán-Castillo
- Programa de Neurociencia, Psiquiatría y Salud Mental, NEPSAM (http://nepsam.udec.cl), Universidad de Concepción, Concepción, Chile
- Programme in Mental Health, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
- Departamento de Ciencias Básicas y Morfología, Facultad de Medicina, Universidad Católica de la Santísima Concepción, Concepción, Chile
- * E-mail: (JLCN); (AGC)
| | - Claudio Bustos
- Programa de Neurociencia, Psiquiatría y Salud Mental, NEPSAM (http://nepsam.udec.cl), Universidad de Concepción, Concepción, Chile
- Departamento de Psicología, Facultad de Ciencias Sociales, Universidad de Concepción, Concepción, Chile
| | - Romina Rojas
- Programa de Neurociencia, Psiquiatría y Salud Mental, NEPSAM (http://nepsam.udec.cl), Universidad de Concepción, Concepción, Chile
- Departamento de Farmacología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
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Kedarnath PS, Subramanian SS, Bhaskar E, Kasi M, Pillai V, Subramanian S, Manohar V. Salivary 1,5-Anhydroglucitol and its Correlation with Postprandial Hyperglycemia: Development and Validation of a Novel Assay. Int J Appl Basic Med Res 2023; 13:23-28. [PMID: 37266531 PMCID: PMC10230528 DOI: 10.4103/ijabmr.ijabmr_378_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 12/06/2022] [Accepted: 01/10/2023] [Indexed: 06/03/2023] Open
Abstract
Background Saliva has the potential to be used as a noninvasive sample for testing hyperglycemia in diabetes mellitus. Serum 1,5-anhydroglucitol (1,5-AG) decreases with an increase in blood sugar >180 mg/dl. We hypothesized that salivary 1,5-AG can be used to identify blood sugar higher than 180 mg/dl using a novel biochemical method. Aim This study aimed to develop a novel biochemical method for serum and salivary assessment of 1,5-AG and assess its correlation with postprandial blood sugar (PPBS) >180 mg/dl. Methodology The study comprised 45 controls (healthy individuals) and 45 cases (type 2 diabetic patients with PPBS >180 mg/dl). Blood and salivary samples were collected according to the study protocol. A new method was developed for the quantification of 1,5-AG in serum and saliva using liquid chromatography-mass spectrometry. Results The value of serum (mean -22.19 μg/ml and median -22.12 μg/ml) and salivary (mean -0.124 μg/ml and median -0.088 μg/ml) 1,5-AG was higher in healthy individuals compared to corresponding serum (mean -3.89 μg/ml and median -2.52 μg/ml) and salivary (mean -0.025 μg/ml and median - 0.025 μg/ml) levels in diabetics with PPBS >180 mg/dl. In diabetics, a significant negative correlation was noticed with PPBS levels and 1,5-AG levels in serum and saliva. Salivary 1,5-AG level <0.054 μg/ml had an 86.4% sensitivity and 87.2% specificity in predicting a blood sugar value >180 mg/dl. Conclusion The results of our study suggest that the short-term glycemic marker 1,5-AG can be detected in saliva and can be useful as an adjunct marker in monitoring of glycemic status in diabetic patients.
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Affiliation(s)
| | - S. Sathasiva Subramanian
- Department of Oral Medicine and Radiology, Sri Ramachandra Dental College and Hospital, Sri Ramachandra University, Chennai, Tamil Nadu, India
| | - Emmanuel Bhaskar
- Department of General Medicine, Sri Ramachandra Institute of Higher Education and Research, Sri Ramachandra University, Chennai, Tamil Nadu, India
| | - Mohan Kasi
- Indian Institute of Chromatography and Mass Spectrometry, Chennai, Tamil Nadu, India
| | - Vinod Pillai
- Indian Institute of Chromatography and Mass Spectrometry, Chennai, Tamil Nadu, India
| | - Saravanan Subramanian
- Indian Institute of Chromatography and Mass Spectrometry, Chennai, Tamil Nadu, India
| | - Venkat Manohar
- Indian Institute of Chromatography and Mass Spectrometry, Chennai, Tamil Nadu, India
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Intraglandular mesenchymal stem cell treatment induces changes in the salivary proteome of irradiated patients. COMMUNICATIONS MEDICINE 2022; 2:160. [PMID: 36496530 PMCID: PMC9735277 DOI: 10.1038/s43856-022-00223-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 11/24/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Hyposalivation and xerostomia (dry mouth), are the leading site-effects to treatment of head and neck cancer. Currently, there are no effective therapies to alleviate radiation-induced hyposalivation. Adipose tissue-derived mesenchymal stem/stromal cells (AT-MSCs) have shown potential for restoring salivary gland function. However, the mode of action is unknown. The purpose of the present study was therefore to characterize the effect of AT-MSC therapy on the salivary proteome in previously irradiated head and neck cancer patients. METHODS Whole saliva was collected from patients with radiation-induced salivary gland hypofunction (n = 8) at baseline, and 120 days after AT-MSC treatment, and from healthy controls (n = 10). The salivary proteome was characterized with mass spectrometry based proteomics, and data was compared within the AT-MSC group (baseline versus day 120) and between AT-MSC group and healthy controls. Significance levels between groups were determined by using double-sided t-test, and visualized by means of principal component analysis, volcano plots and cluster analysis. RESULTS Here we show that 140 human proteins are significantly differentially expressed in saliva from patients with radiation-induced hypofunction versus healthy controls. AT-MSC treatment induce a significant impact on the salivary proteome, as 99 proteins are differentially expressed at baseline vs. 120 days after treatment. However, AT-MSC treatment does not restore healthy conditions, as 212 proteins are significantly differentially expressed in saliva 120 days after AT-MSCs treatment, as compared to healthy controls. CONCLUSION The results indicate an increase in proteins related to tissue regeneration in AT-MSCs treated patients. Our study demonstrates the impact of AT-MSCs on the salivary proteome, thereby providing insight into the potential mode of action of this novel treatment approach.
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Li P, Liu S, Du L, Mohseni G, Zhang Y, Wang C. Liquid biopsies based on DNA methylation as biomarkers for the detection and prognosis of lung cancer. Clin Epigenetics 2022; 14:118. [PMID: 36153611 PMCID: PMC9509651 DOI: 10.1186/s13148-022-01337-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 09/16/2022] [Indexed: 11/27/2022] Open
Abstract
Lung cancer (LC) is the main cause of cancer-related mortality. Most LC patients are diagnosed in an advanced stage when the symptoms are obvious, and the prognosis is quite poor. Although low-dose computed tomography (LDCT) is a routine clinical examination for early detection of LC, the false-positive rate is over 90%. As one of the intensely studied epigenetic modifications, DNA methylation plays a key role in various diseases, including cancer and other diseases. Hypermethylation in tumor suppressor genes or hypomethylation in oncogenes is an important event in tumorigenesis. Remarkably, DNA methylation usually occurs in the very early stage of malignant tumors. Thus, DNA methylation analysis may provide some useful information about the early detection of LC. In recent years, liquid biopsy has developed rapidly. Liquid biopsy can detect and monitor both primary and metastatic malignant tumors and can reflect tumor heterogeneity. Moreover, it is a minimally invasive procedure, and it causes less pain for patients. This review summarized various liquid biopsies based on DNA methylation for LC. At first, we briefly discussed some emerging technologies for DNA methylation analysis. Subsequently, we outlined cell-free DNA (cfDNA), sputum, bronchoalveolar lavage fluid, bronchial aspirates, and bronchial washings DNA methylation-based liquid biopsy for the early detection of LC. Finally, the prognostic value of DNA methylation in cfDNA and sputum and the diagnostic value of other DNA methylation-based liquid biopsies for LC were also analyzed.
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Byakodi M, Shrikrishna NS, Sharma R, Bhansali S, Mishra Y, Kaushik A, Gandhi S. Emerging 0D, 1D, 2D, and 3D nanostructures for efficient point-of-care biosensing. BIOSENSORS & BIOELECTRONICS: X 2022; 12:100284. [PMID: 36448023 PMCID: PMC9691282 DOI: 10.1016/j.biosx.2022.100284] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 04/12/2023]
Abstract
The recent COVID-19 infection outbreak has raised the demand for rapid, highly sensitive POC biosensing technology for intelligent health and wellness. In this direction, efforts are being made to explore high-performance nano-systems for developing novel sensing technologies capable of functioning at point-of-care (POC) applications for quick diagnosis, data acquisition, and disease management. A combination of nanostructures [i.e., 0D (nanoparticles & quantum dots), 1D (nanorods, nanofibers, nanopillars, & nanowires), 2D (nanosheets, nanoplates, nanopores) & 3D nanomaterials (nanocomposites and complex hierarchical structures)], biosensing prototype, and micro-electronics makes biosensing suitable for early diagnosis, detection & prevention of life-threatening diseases. However, a knowledge gap associated with the potential of 0D, 1D, 2D, and 3D nanostructures for the design and development of efficient POC sensing is yet to be explored carefully and critically. With this focus, this review highlights the latest engineered 0D, 1D, 2D, and 3D nanomaterials for developing next-generation miniaturized, portable POC biosensors development to achieve high sensitivity with potential integration with the internet of medical things (IoMT, for miniaturization and data collection, security, and sharing), artificial intelligence (AI, for desired analytics), etc. for better diagnosis and disease management at the personalized level.
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Affiliation(s)
- Manisha Byakodi
- DBT-National Institute of Animal Biotechnology (NIAB), Hyderabad, 500032, Telangana, India
| | - Narlawar Sagar Shrikrishna
- DBT-National Institute of Animal Biotechnology (NIAB), Hyderabad, 500032, Telangana, India
- DBT-Regional Centre for Biotechnology (RCB), Faridabad, 121001, Haryana (NCR Delhi), India
| | - Riya Sharma
- DBT-National Institute of Animal Biotechnology (NIAB), Hyderabad, 500032, Telangana, India
| | - Shekhar Bhansali
- Department of Electrical and Computer Engineering, Florida International University, Miami, FL, 33174, USA
| | - Yogendra Mishra
- Mads Clausen Institute, NanoSYD, University of Southern Denmark, Alsion 2, 6400, Sønderborg, Denmark
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Department of Environmental Engineering, Florida Polytechnic University, Lakeland, FL, USA
| | - Sonu Gandhi
- DBT-National Institute of Animal Biotechnology (NIAB), Hyderabad, 500032, Telangana, India
- DBT-Regional Centre for Biotechnology (RCB), Faridabad, 121001, Haryana (NCR Delhi), India
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Marksteiner J, Defrancesco M, Humpel C. Saliva tau and phospho-tau-181 measured by Lumipulse in patients with Alzheimer's disease. Front Aging Neurosci 2022; 14:1014305. [PMID: 36247998 PMCID: PMC9557075 DOI: 10.3389/fnagi.2022.1014305] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/01/2022] [Indexed: 12/04/2022] Open
Abstract
Alzheimer's disease (AD) is a severe neurodegenerative brain disorder. The determination of beta-amyloid (Aβ)-40, -42, total tau, and phospho-tau-181 (pTau181) in cerebrospinal fluid (CSF) using Lumipulse technology has been established as biomarkers for AD in recent years. As CSF collection is an invasive procedure, one aims to find biomarkers in blood or other human fluids, such as saliva. In the present study, we aim to measure these markers in human saliva. Using Salivettes, we collected saliva samples from healthy controls (n = 27), patients with AD dementia (n = 44), mild cognitive impairment (MCI) (n = 45), depression (n = 31), and 21 blinded samples, all older than 60 years. Lumipulse technology with a G600II was used to detect all four biomarkers. Our data show that the levels of total protein were highly variable and thus biomarker levels were corrected to 1 mg/ml of total protein. Saliva Aβ-40 and -42 were not detectable, because it was not recovered from the Salivettes. However, saliva total tau (577 ± 134 pg/mg, n = 22) and phospho-tau-181 (9.7 ± 1.3 pg/mg, n = 21) could be analyzed by Lumipulse technology. Saliva total tau levels were significantly decreased in patients with AD (≤ 300 pg/mg protein), while pTau181 levels (≥ 18 pg/mg protein) were significantly enhanced in patients with MCI compared to controls. Laboratory diagnosis with a cut-off of ≥ 18 pg/mg protein pTau181 (for MCI) and ≤ 300 pg/mg protein tau (for AD) for blinded samples could diagnose MCI and AD with an accuracy of 71.4%. Despite these initial promising results, the findings must be replicated in larger cohorts, and several technical problems due to saliva processing must be solved and Salivettes should not be used.
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Affiliation(s)
- Josef Marksteiner
- Department of Psychiatry and Psychotherapy A, State Hospital Hall in Tirol, Hall in Tirol, Austria
| | - Michaela Defrancesco
- Division of Psychiatry I, Department of Psychiatry, Psychotherapy, Psychosomatics and Medical Psychology, Medical University Innsbruck, Innsbruck, Austria
| | - Christian Humpel
- Laboratory of Psychiatry and Experimental Alzheimer’s Research, Medical University of Innsbruck, Innsbruck, Austria
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