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Patridge E, Gorakshakar A, Molusky MM, Ogundijo O, Janevski A, Julian C, Hu L, Vuyisich M, Banavar G. Microbial functional pathways based on metatranscriptomic profiling enable effective saliva-based health assessments for precision wellness. Comput Struct Biotechnol J 2024; 23:834-842. [PMID: 38328005 PMCID: PMC10847690 DOI: 10.1016/j.csbj.2024.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/25/2024] [Accepted: 01/25/2024] [Indexed: 02/09/2024] Open
Abstract
It is increasingly recognized that an important step towards improving overall health is to accurately measure biomarkers of health from the molecular activities prevalent in the oral cavity. We present a general methodology for computationally quantifying the activity of microbial functional pathways using metatranscriptomic data. We describe their implementation as a collection of eight oral pathway scores using a large salivary sample dataset (n = 9350), and we evaluate score associations with oropharyngeal disease phenotypes within an unseen independent cohort (n = 14,129). Through this validation, we show that the relevant oral pathway scores are significantly worse in individuals with periodontal disease, acid reflux, and nicotine addiction, compared with controls. Given these associations, we make the case to use these oral pathway scores to provide molecular health insights from simple, non-invasive saliva samples, and as molecular endpoints for actionable interventions to address the associated conditions.
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Affiliation(s)
- Eric Patridge
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | - Anmol Gorakshakar
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | | | - Oyetunji Ogundijo
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | - Angel Janevski
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | - Cristina Julian
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | - Lan Hu
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
| | | | - Guruduth Banavar
- Viome Research Institute, Viome Life Sciences Inc., New York City, USA
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Khijmatgar S, Yong J, Rübsamen N, Lorusso F, Rai P, Cenzato N, Gaffuri F, Del Fabbro M, Tartaglia GM. Salivary biomarkers for early detection of oral squamous cell carcinoma (OSCC) and head/neck squamous cell carcinoma (HNSCC): A systematic review and network meta-analysis. Jpn Dent Sci Rev 2024; 60:32-39. [PMID: 38204964 PMCID: PMC10776379 DOI: 10.1016/j.jdsr.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 09/21/2023] [Accepted: 10/26/2023] [Indexed: 01/12/2024] Open
Abstract
Oral cancer became a very common condition. WHO estimates that there are 4 cases of lip and oral cavity cancer for every 100,000 people worldwide. The early diagnosis of cancers is currently a top focus in the health sector. Recent systematic reviews and meta-analyses have identified promising biomarkers for early detection in several original research investigations. However, it is still unclear the quality of these evidence and which biomarker performs the best in terms of early detection. Therefore, the objective was, to map the methodological and reporting quality of available oral squamous cell carcinoma (OSCC) or head/neck squamous cell carcinoma (HNSCC) systematic reviews and meta-analysis. Secondly, to evaluate diagnostic accuracy of salivary biomarkers for common craniofacial cancers and to compare the diagnostic value of different salivary biomarkers. PubMed, Scopus, Web of Science, Embase and Cochrane Library electronic databases were used to map the methodological and reporting quality of the systematic reviews and meta-analysis conducted on the HNSCC, OSCC using the AMSTAR-2 checklist. The inclusion criteria were systematic reviews and meta-analysis published in the topic of HNSCC and OSCC biomarkers. Exclusion criteria were no animal studies; original primary studies, due to limitation of competency in other languages articles with language other than English were excluded. The sensitivity and specificity were calculated for salivary biomarkers and ranked according to network meta-analysis principles. A total of N = 5893 patients were included from four meta-analysis studies. All together, these included n = 37 primary studies. n = 94 biomarkers were pooled from these four meta-analyses and categorised into the stages at which they were detected (I-IV). In OSCC, Chemerin and MMP-9 displayed the highest sensitivity, registering 0.94 (95% CI 0.78, 1.00) and a balanced accuracy of 0.93. Phytosphingosine closely followed, with a sensitivity of 0.91 (95% CI 0.68, 0.99) and a balanced accuracy of 0.87. For HNSCC, the top three biomarkers are Actin, IL-1β Singleplex, and IL-8 ELISA. Actin leads with a sensitivity of 0.91 (95% CI 0.68-0.99), a specificity of 0.67, and an overall accuracy of 0.79. Subsequently, IL-1β Singleplex exhibits a sensitivity of 0.62 (95% CI 0.30-0.88), a specificity of 0.89, and an accuracy of 0.75, followed by IL-8 ELISA with a sensitivity of 0.81 (95% CI 0.54-0.97), a specificity of 0.59, and an accuracy of 0.70. In conclusion, there was highest sensitivity for MMP-9 and chemerin salivary biomarkers. There is need of further more studies to identify biomarkers for HNSCC and OSCC.
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Affiliation(s)
- Shahnawaz Khijmatgar
- SC Chirurgia Maxillo-Facciale e Odontostomatologia, Fondazione Ca’Granda IRCCS Ospedale Maggiore Policlinico, Milan 20122, Italy
| | - Josh Yong
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy
- Harvard School of Dental Medicine, USA
| | - Nicole Rübsamen
- Institute of Epidemiology and Social Medicine, University of Münster, Germany
| | - Felice Lorusso
- Università degli Studi G. d'Annunzio Chieti - Pescara: Chieti, Abruzzi, Italy
| | - Pooja Rai
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy
| | - Niccolo Cenzato
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy
| | - Franscesca Gaffuri
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy
| | - Massimo Del Fabbro
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy
- SC Chirurgia Maxillo-Facciale e Odontostomatologia, Fondazione Ca’Granda IRCCS Ospedale Maggiore Policlinico, Milan 20122, Italy
| | - Gianluca Martino Tartaglia
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy
- SC Chirurgia Maxillo-Facciale e Odontostomatologia, Fondazione Ca’Granda IRCCS Ospedale Maggiore Policlinico, Milan 20122, Italy
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Gerred K, Kapoor A. A fit-for-purpose validation of a commercial radioimmunoassay for measurement of human peripheral oxytocin. Biochem Biophys Rep 2024; 38:101666. [PMID: 38434143 PMCID: PMC10907144 DOI: 10.1016/j.bbrep.2024.101666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/07/2023] [Accepted: 02/12/2024] [Indexed: 03/05/2024] Open
Abstract
Oxytocin (OT) is a peptide hormone synthesized in the hypothalamus and released into systemic circulation or other areas of the brain. Its physiological roles include action as a hormone with stimulation of uterine contractions and that as a neuromodulator with involvement in social behaviors and regulation of mood. Its small size and low levels within biological matrices make it challenging to accurately measure. The goal of this study was to demonstrate the specificity of the antibody, sensitivity, and reproducibility of the Phoenix Pharmaceuticals (PP) OT radioimmunoassay (RIA) for use in human urine, serum, and saliva. Specificity of the antibody was assessed by high pressure liquid chromatography with ultraviolet (HPLC-UV) separation and assay of the fractions. Immunoreactivity was evaluated using the percent OT bound, and the fraction retention times were compared to the retention time of an intact OT standard to determine which fractions contained OT in the extracted samples. Reproducibility was assessed by running replicates of pools of each biomatrix over several assays. Sensitivity was assessed by repeated measurement of physiologically relevant low-concentration specimens. In all tested specimens the greatest reactivity in assay corresponded to the same fraction(s) as the OT standard. Only minimal reactivity was found in the other fractions, suggesting that in an unfractionated sample the antibody reacts mostly with intact OT. Reproducibility was acceptable for all specimens and the coefficient of variation (CV) ranged from 3.72 to 8.04% and 5.89-12.8%, for intra and inter-assay, respectively. The limits of quantitation (LOQ) were sufficient for measurement of normal values in urine (0.643 & 1.43 pg/mL), serum (1.90 pg/mL), and saliva pools (0.485 & 4.42 pg/mL). In conclusion, the PP OT RIA is specific and sensitive enough for reproducible measurement of intact OT in human peripheral biological matrices.
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Affiliation(s)
- Keenan Gerred
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, 1220 Capitol Court, Madison, WI, 53715, USA
| | - Amita Kapoor
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, 1220 Capitol Court, Madison, WI, 53715, USA
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Branco NTT, Dos Santos Soares AR, Dutra DJB, Ferreira RC, Moreira AN, Zina LG, Magalhães CSD. Salivary factors associated with noncarious cervical lesions: A systematic review. Arch Oral Biol 2024; 162:105945. [PMID: 38460485 DOI: 10.1016/j.archoralbio.2024.105945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
OBJECTIVE This study aimed to carry out a systematic review of observational studies searching the association between salivary factors (amount and quality of saliva) and noncarious cervical lesions (NCCL) in individuals with permanent dentition. DESIGN Cross-sectional, case-control, and cohort studies performed in humans with permanent dentition (population) and considering noncarious cervical lesions (outcome) in association with salivary characteristics (exposure) were included. PubMed, Web of Science, Cochrane, LILACS/BBO, Scopus, Embase, IBCT, NICE, OpenGrey, and Google Scholar were searched, with no language or date restrictions. Of 6561 potentially eligible studies, 142 were selected for full-text analysis. Three reviewers independently selected the studies, performed data extraction, and quality analysis through the Newcastle-Ottawa Scale. RESULTS Finally, ten references were included in the review, four case-control and six cross-sectional studies. Several salivary parameters were evaluated. Some parameters were considered associated with the presence of noncarious cervical lesions: salivary buffering capacity, salivary pH, citric acid, and calcium and potassium levels. The methodological quality varied across studies, with high heterogeneity among them. CONCLUSIONS Some associations between saliva and NCCL suggesting protective factors and others risk factors were found. However, the evidence is sparse and comes from a few studies with great heterogeneity. New scientific evidence, with standardized methods, should be encouraged. Understanding salivary parameters that influence the occurrence of NCCL is important to guide dentists in relation to etiological factors that could potentially be neglected. The results may help in the development of new and early diagnostic methods and treatments for noncarious cervical lesions.
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Affiliation(s)
- Natália Teixeira Tavares Branco
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Pres. Antonio Carlos, 6627, 31270-901 Belo Horizonte, Brazil.
| | - Anna Rachel Dos Santos Soares
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Pres. Antonio Carlos, 6627, 31270-901 Belo Horizonte, Brazil
| | - Daniel José Braga Dutra
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Pres. Antonio Carlos, 6627, 31270-901 Belo Horizonte, Brazil
| | - Raquel Conceição Ferreira
- Department of Social and Preventive Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Pres. Antonio Carlos, 6627, 31270-901 Belo Horizonte, Brazil
| | - Allyson Nogueira Moreira
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Pres. Antonio Carlos, 6627, 31270-901 Belo Horizonte, Brazil
| | - Lívia Guimarães Zina
- Department of Social and Preventive Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Pres. Antonio Carlos, 6627, 31270-901 Belo Horizonte, Brazil
| | - Cláudia Silami de Magalhães
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Pres. Antonio Carlos, 6627, 31270-901 Belo Horizonte, Brazil
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Ramos JMJ. Parotid hyper salivation after inferior salivatory nucleus glutamate/NMDA receptor excitation in the rat. Physiol Behav 2024; 280:114564. [PMID: 38657747 DOI: 10.1016/j.physbeh.2024.114564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/12/2024] [Accepted: 04/20/2024] [Indexed: 04/26/2024]
Abstract
Although salivation is essential during eating behavior, little is known about the brainstem centers that directly control the salivary glands. With regard to the inferior salivatory nucleus (ISN), the site of origin of the parasympathetic preganglionic cell bodies that innervate the parotid glands, previous anatomical studies have located it within the rostrodorsal medullary reticular formation. However, to date there is no functional data that shows the secretory nature of the somas grouped in this region. To activate only the somas and rule out the activation of the efferent fibers from and the afferent fibers to the ISN, in exp. 1, NMDA neurotoxin was administered to the rostrodorsal medullary region and the secretion of saliva was recorded during the following hour. Results showed an increased secretion of parotid saliva but a total absence of submandibular-sublingual secretion. In exp. 2, results showed that the hypersecretion of parotid saliva after NMDA microinjection was completely blocked by the administration of atropine (a cholinergic blocker) but not after administration of dihydroergotamine plus propranolol (α and β-adrenergic blockers, respectively). These findings suggest that the somata of the rostrodorsal medulla are secretory in nature, controlling parotid secretion via a cholinergic pathway. The data thus functionally supports the idea that these cells constitute the ISN.
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Affiliation(s)
- Juan M J Ramos
- Department of Psychobiology and Mind, Brain and Behaviour Research Centre (CIMCYC), University of Granada, Granada 18071, Spain.
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Moulahoum H, Ghorbanizamani F, Timur S. Laser-printed paper ELISA and hydroxyapatite immobilization for colorimetric congenital anomalies screening in saliva. Anal Chim Acta 2024; 1306:342617. [PMID: 38692789 DOI: 10.1016/j.aca.2024.342617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/07/2024] [Accepted: 04/15/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND Alpha-fetoprotein (AFP) is a fetal protein that can indicate congenital anomalies such as Down syndrome and spinal canal blockage when detected at abnormal levels in pregnant women. Current AFP detection methods rely on invasive blood or serum samples, which require sophisticated equipment. From the many solutions proposed, colorimetric paper-based assays excel in point-of-care settings. The concept of paper-based ELISA (p-ELISA) enhances traditional methods, aligning with the ASSURED criteria for diagnostics in resource-limited regions. Despite success in microfluidic paper-based assay devices, laser printing remains underexplored for p-ELISA. Additionally, modifying the paper surface provides an additional layer of sensitivity enhancement. RESULTS In this study, we developed a novel laser-printed paper-based ELISA (LP-pELISA) for rapid, sensitive, and noninvasive detection of AFP in saliva samples. The LP-pELISA platform was fabricated by printing hydrophobic barriers on filter paper using a laser printer, followed by depositing hydroxyapatite (HAp) as an immobilization material for the antibodies. The colorimetric detection was achieved using AuNPs functionalized with anti-AFP antibodies and silver nitrate enhancement. The LP-pELISA exhibited a linear response for AFP detection in both buffer and saliva samples over a range of 1.0-800 ng mL-1, with a limit of detection (LOD) reaching 1.0 ng mL-1. The assay also demonstrated good selectivity, repeatability, reproducibility, and stability. The LP-pELISA was further validated by testing spiked human saliva samples, showing its potential for point-of-care diagnosis of congenital disabilities. SIGNIFICANCE The LP-pELISA is a noninvasive platform showcasing simplicity, cost-effectiveness, and user-friendliness, utilizing laser printing, hydroxyapatite modification, and saliva samples to efficiently detect AFP. Beyond its application for AFP, this method's versatility extends to other biomarkers, positioning it as a catalyst for the evolution of paper-based biosensors. The LP-pELISA holds promise as a transformative tool for point-of-care diagnostics, fostering advancements in healthcare with its innovative technology.
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Affiliation(s)
- Hichem Moulahoum
- Biochemistry Department, Faculty of Science, Ege University, 35100, Bornova, Izmir, Turkey.
| | - Faezeh Ghorbanizamani
- Biochemistry Department, Faculty of Science, Ege University, 35100, Bornova, Izmir, Turkey
| | - Suna Timur
- Biochemistry Department, Faculty of Science, Ege University, 35100, Bornova, Izmir, Turkey; Central Research Testing and Analysis Laboratory Research and Application Center, Ege University, 35100, Bornova, Izmir, Turkey.
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O'Mahoney C, Watt I, Fiedler S, Devenish S, Srikanth S, Justice E, Dover T, Dean D, Peng C. Microfluidic Diffusional Sizing (MDS) Measurements of Secretory Neutralizing Antibody Affinity Against SARS-CoV-2. Ann Biomed Eng 2024; 52:1653-1664. [PMID: 38459195 PMCID: PMC11082020 DOI: 10.1007/s10439-024-03478-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 02/19/2024] [Indexed: 03/10/2024]
Abstract
SARS-CoV-2 has rampantly spread around the globe and continues to cause unprecedented loss through ongoing waves of (re)infection. Increasing our understanding of the protection against infection with SARS-CoV-2 is critical to ending the pandemic. Serological assays have been widely used to assess immune responses, but secretory antibodies, the essential first line of defense, have been studied to only a limited extent. Of particular interest and importance are neutralizing antibodies, which block the binding of the spike protein of SARS-CoV-2 to the human receptor angiotensin-converting enzyme-2 (ACE2) and thus are essential for immune defense. Here, we employed Microfluidic Diffusional Sizing (MDS), an immobilization-free technology, to characterize neutralizing antibody affinity to SARS-CoV-2 spike receptor-binding domain (RBD) and spike trimer in saliva. Affinity measurement was obtained through a contrived sample and buffer using recombinant SARS-CoV-2 RBD and monoclonal antibody. Limited saliva samples demonstrated that MDS applies to saliva neutralizing antibody measurement. The ability to disrupt a complex of ACE2-Fc and spike trimer is shown. Using a quantitative assay on the patient sample, we determined the affinity and binding site concentration of the neutralizing antibodies.
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Affiliation(s)
- Cara O'Mahoney
- Department of Bioengineering, Clemson University, Clemson, SC, USA
| | - Ian Watt
- Fluidic Analytics, Cambridge, UK
| | | | | | - Sujata Srikanth
- Center for Innovative Medical Devices and Sensors, Clemson University, Clemson, SC, USA
| | - Erica Justice
- Center for Innovative Medical Devices and Sensors, Clemson University, Clemson, SC, USA
| | - Tristan Dover
- Center for Innovative Medical Devices and Sensors, Clemson University, Clemson, SC, USA
| | - Delphine Dean
- Department of Bioengineering, Clemson University, Clemson, SC, USA
- Center for Innovative Medical Devices and Sensors, Clemson University, Clemson, SC, USA
| | - Congyue Peng
- Department of Bioengineering, Clemson University, Clemson, SC, USA.
- Center for Innovative Medical Devices and Sensors, Clemson University, Clemson, SC, USA.
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Karthika P, Shanmuganathan S, Subramanian V, Delerue-Matos C. Selective detection of salivary cortisol using screen-printed electrode coated with molecularly imprinted polymer. Talanta 2024; 272:125823. [PMID: 38422908 DOI: 10.1016/j.talanta.2024.125823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 02/18/2024] [Accepted: 02/21/2024] [Indexed: 03/02/2024]
Abstract
A novel electrochemical sensor was developed for the detection of salivary cortisol levels. The sensor employs a combination of a molecularly imprinted polymer (MIP) and gold nanoparticles (AuNPs) that are electrodeposited onto a screen-printed electrode (SPE). The study utilised density functional theory and molecular docking techniques to determine the geometry of molecular orbitals, electrostatic potential energies, and binding energy of cortisol and the polymers. The thin film of cortisol-imprinted polymer on the SPE was created by electro-polymerizing pyrrole and thiophene-3-carboxylic acid on the electrode surface along with cortisol as the template molecule. The MIP film was characterised using scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and electrochemical techniques. The sensor exhibited a linear response in the concentration range of 0.05 nmol L-1 to 2.5 μmol L-1, with a limit of detection of 0.01 nmol L-1, as determined by differential pulse voltammetry. This method offers a simple yet efficient and sensitive approach to detecting cortisol levels in human saliva samples.
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Affiliation(s)
- Palanisamy Karthika
- Department of Industrial Chemistry, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
| | | | - Viswanathan Subramanian
- Department of Industrial Chemistry, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV, ISEP, Polytechnic of Porto, Rua Dr. António Bernardino de Almeida 431, 4249-015, Porto, Portugal
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Turska-Szybka A, Piotrkowicz Z, Prokopczyk M, Olczak-Kowalczyk D, Sierakowski M, Gozdowski D, Tomczyk J. Concentration of Fluoride in Saliva After Fluoride Gel Application: A Randomised Clinical Trial. Int Dent J 2024:S0020-6539(24)00006-6. [PMID: 38734515 DOI: 10.1016/j.identj.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 12/29/2023] [Accepted: 01/03/2024] [Indexed: 05/13/2024] Open
Abstract
OBJECTIVE The aim of this randomised clinical trial (RCT) was to assess the concentration of fluoride ions in saliva after applying fluoride gel and to examine the extent to which rinsing the mouth with water affects the content of fluoride ions in saliva as opposed to no rinsing after brushing teeth with gel. METHODS This single-blind RCT was conducted amongst a group of students (N = 103) and consisted of a questionnaire, clinical examination, saliva collection, and laboratory analysis. After saliva samples were collected, the students brushed their teeth for 2 minutes with Elmex Gelée (Colgate-Palmolive). Next, saliva was collected after 15 and 60 minutes from Group A (spitting out saliva after brushing) and from Group B (spitting out and rinsing with water after brushing). Statistical analysis was performed using a t test to compare the means between the groups. RESULTS Fifteen minutes after brushing, the level of fluoride increased in Group A about 15-fold to 15.33 ± 14.73 ppm and in Group B about 6-fold to 6.19 ± 5.97 ppm (P < .001). After 60 minutes, in Group A it decreased to 1.68 ± 0.83 ppm and in Group B to 0.60 ± 0.37 ppm (P < .001). CONCLUSIONS The use of fluoride gel in the absence of mouth rinsing produced significantly higher level and a concentration of fluoride in saliva. A post-gel brushing without rinsing might be suitable for patients at high risk for caries. Hence fruther research on the effect of a mouth rinse after use of fluoride gels is eesential to confirm our findings, and to promulgate evidence-based recommendations.
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Affiliation(s)
- Anna Turska-Szybka
- Department of Paediatric Dentistry, Medical University of Warsaw, Poland
| | - Zuzanna Piotrkowicz
- Students' Research Group at the Department of Paediatric Dentistry, Medical University of Warsaw, Poland
| | - Maria Prokopczyk
- Students' Research Group at the Department of Paediatric Dentistry, Medical University of Warsaw, Poland
| | | | - Maciej Sierakowski
- Institute of Biological Science, The Cardinal Stefan Wyszynski University, Warsaw, Poland
| | - Dariusz Gozdowski
- Department of Biometry, Warsaw University of Life Science, Warsaw, Poland
| | - Jacek Tomczyk
- Institute of Biological Science, The Cardinal Stefan Wyszynski University, Warsaw, Poland
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Alrashdan MS, Al-Shorman H, Bouzid A, Al-Dwairi A, Alazzam M, Alqudah M. The expression of salivary EGF, VEGF, endothelin, and transferrin in waterpipe and cigarette smokers. Odontology 2024:10.1007/s10266-024-00947-9. [PMID: 38710904 DOI: 10.1007/s10266-024-00947-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/24/2024] [Indexed: 05/08/2024]
Abstract
The aim of this study was to evaluate the effects of two forms of tobacco smoking, cigarettes and water pipe smoking (WPS), on the expression of a panel of salivary proteins in healthy adults. Three groups of age and gender-matched participants were enrolled in the study: never-smokers, cigarette smokers and WPS (N = 55 per group). Expression of epidermal growth factor (EGF), vascular endothelial growth factor (VEGF), endothelin and transferrin in unstimulated whole saliva was estimated using enzyme-linked immunosorbent assays. Statistical analysis consisted of one-way ANOVA and Tukey's post hoc tests, in addition to bioinformatics analysis. VEGF expression was the least in WPS (51.1 ± 14.5 pg/ml) compared to both controls (150.1 ± 13.8 pg/ml) and cigarette smokers (93 ± 9.9 pg/ml), with a significant difference in WPS (p < 0.001) and cigarette smokers (p < 0.01) compared to controls. Furthermore, transferrin showed the weakest expression in the WPS group (1238 ± 261.4 pg/ml) compared to controls (2205.6 ± 298.6 pg/ml) (p = 0.05) and cigarette smokers (1805.4 ± 244 pg/ml). Neither EGF nor endothelin expression showed any statistical difference between the groups (p > 0.05). Gene-gene interaction network demonstrated that FLT1, TFRC, KDR, VEGFB and PGF genes had the highest potential for interaction with the studied proteins. Further functional annotations on the identified markers in the interaction network were performed to identify HIF-1 pathways among the most relevant pathways. In conclusion, smoking habits alter the expression of salivary VEGF and transferrin, which may correspond to early sub-clinical changes in the oral mucosa. The clinical relevance of these salivary changes requires further research.
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Affiliation(s)
- Mohammad S Alrashdan
- Department of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, P.O.Box: 27272, Sharjah, UAE.
- Department of Oral Medicine and Oral Surgery, Faculty of Dentistry, Jorda University of Science and Technology, Irbid, Jordan.
| | - Hisham Al-Shorman
- Department of Oral and Maxillofacial Surgery and Periodontics, Faculty of Dentistry, Zarqa University, Zarqa, Jordan
- Department of Preventive Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan
| | - Amal Bouzid
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, UAE
| | - Ahmed Al-Dwairi
- Department of Physiology and Biochemistry, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Melanie Alazzam
- Department of Oral Medicine and Oral Surgery, Faculty of Dentistry, Jorda University of Science and Technology, Irbid, Jordan
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Robles TF, Rünger D, Sumner JA, Elashoff D, Shetty V. Salivary inflammatory biomarkers as a predictor of post-traumatic stress disorder and depressive symptom severity in trauma patients: A prospective study. Brain Behav Immun 2024; 119:792-800. [PMID: 38714269 DOI: 10.1016/j.bbi.2024.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 04/24/2024] [Accepted: 05/04/2024] [Indexed: 05/09/2024] Open
Abstract
BACKGROUND Although post-traumatic stress disorder (PTSD) and depression screening are recommended for traumatic injury patients, routine screening is still uncommon. Salivary inflammatory biomarkers have biological plausibility and potential feasibility and acceptability for screening. This study tested prospective associations between several salivary inflammatory biomarkers (proinflammatory cytokines interleukin-1β, interleukin-6, tumor necrosis factor-α; and C-reactive protein), collected during hospitalization and PTSD and depressive symptoms at 5-month follow-up. METHODS Adult traumatic injury patients (N = 696) at a major urban Level 1 trauma center provided salivary samples and completed PTSD and depressive symptom measures during days 0-13 of inpatient hospitalization. At 5-month follow-up, 368 patients (77 % male, 23 % female) completed the Clinician-Administered PTSD Scale for DSM-IV and the Self-rated Inventory of Depressive Symptomatology. Analyses focused on a latent inflammatory cytokine factor and C-reactive protein at baseline predicting 5-month PTSD and depression symptom outcomes and included baseline symptom levels as covariates. RESULTS A latent factor representing proinflammatory cytokines was not related to 5-month PTSD or depressive symptom severity. Higher salivary CRP was related to greater PTSD symptom severity (β = .10, p = .03) at 5-month follow-up and more severity in the following depressive symptoms: changes in weight and appetite, bodily complaints, and constipation/diarrhea (β's from .14 to .16, p's from .004 -.03). CONCLUSION In a primarily Latine and Black trauma patient sample, salivary CRP measured after traumatic injury was related to greater PTSD symptom severity and severity in several depressive symptom clusters. Our preliminary findings suggest that salivary or systemic CRP may be useful to include in models predicting post-trauma psychopathology.
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Affiliation(s)
- Theodore F Robles
- Department of Psychology, University of California, Los Angeles, United States.
| | - Dennis Rünger
- Department of Medicine Statistics Core, David Geffen School of Medicine at University of California, Los Angeles, United States
| | - Jennifer A Sumner
- Department of Psychology, University of California, Los Angeles, United States
| | - David Elashoff
- Department of Medicine Statistics Core, David Geffen School of Medicine at University of California, Los Angeles, United States
| | - Vivek Shetty
- School of Dentistry, University of California, Los Angeles, United States
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12
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Hardaker N, King D, Hume PA, Stewart T, Sims S, Basu I, Shilton B, Selfe J. Female RNA concussion (FeRNAC) study: assessing hormone profiles and salivary RNA in females with concussion by emergency departments in New Zealand: a study protocol. BMC Neurol 2024; 24:149. [PMID: 38698312 PMCID: PMC11064333 DOI: 10.1186/s12883-024-03653-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 04/26/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND Females of reproductive age with concussion report a greater number of symptoms that can be more severe and continue for longer than age matched males. Underlying mechanisms for sex differences are not well understood. Short non-coding Ribonucleic Acids (sncRNAs) are candidate salivary biomarkers for concussion and have been studied primarily in male athletes. Female sex hormones influence expression of these biomarkers, and it remains unclear whether a similar pattern of sncRNA expression would be observed in females following concussion. This study aims to evaluate recovery time, the ratio of salivary sncRNAs and symptom severity across different hormone profiles in females presenting to emergency departments (ED) with concussion and, to investigate the presence of low energy availability (LEA) as a potential modifier of concussion symptoms. METHODS This prospective cohort study recruits participants from New Zealand EDs who are biologically female, of reproductive age (16-50 years) and with a confirmed diagnosis of concussion from an ED healthcare professional. Participants are excluded by ED healthcare professionals from study recruitment as part of initial routine assessment if they have a pre-diagnosed psychiatric condition, neurological condition (i.e., epilepsy, cerebral palsy) or more than three previously diagnosed concussions. Participants provide a saliva sample for measurement of sncRNA's, and online survey responses relating to hormone profile and symptom recovery at 7-day intervals after injury until they report a full return to work/study. The study is being performed in accordance with ethical standards of the Declaration of Helsinki with ethics approval obtained from the Health and Disability Ethics Committee (HDEC #2021 EXP 11655), Auckland University of Technology Ethics Committee (AUTEC #22/110) and locality consent through Wellington hospital research office. DISCUSSION If saliva samples confirm presence of sncRNAs in females with concussion, it will provide evidence of the potential of saliva sampling as an objective tool to aid in diagnosis of, and confirmation of recovery from, concussion. Findings will determine whether expression of sncRNAs is influenced by steroid hormones in females and may outline the need for sex specific application and interpretation of sncRNAs as a clinical and/or research tool. TRIAL REGISTRATION Australian New Zealand Clinical Trials Registry (ANZCTR) registration number ACTRN12623001129673.
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Affiliation(s)
- Natalie Hardaker
- Faculty of Health and Environmental Science, Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, New Zealand Wellington, New Zealand.
- Accident Compensation Corporation, Wellington, New Zealand.
- Traumatic Brain Injury Network (TBIN), Auckland University of Technology, Auckland, New Zealand.
| | - Doug King
- Faculty of Health and Environmental Science, Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, New Zealand Wellington, New Zealand
- Traumatic Brain Injury Network (TBIN), Auckland University of Technology, Auckland, New Zealand
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Department of Sport and Exercise Sciences, Wolfson Research Institute for Health and Wellbeing, Durham University, Durham, UK
| | - Patria A Hume
- Faculty of Health and Environmental Science, Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, New Zealand Wellington, New Zealand
- Traumatic Brain Injury Network (TBIN), Auckland University of Technology, Auckland, New Zealand
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Technology and Policy Lab - Law School, The University of Western Australia, Perth, Australia
| | - Tom Stewart
- Faculty of Health and Environmental Science, Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, New Zealand Wellington, New Zealand
| | - Stacy Sims
- Faculty of Health and Environmental Science, Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, New Zealand Wellington, New Zealand
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Stanford Lifestyle Medicine, Stanford University, Palo Alto, CA, USA
| | | | | | - James Selfe
- Department of Health Professions, Faculty of Health and Education, Manchester Metropolitan University, Manchester, UK
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Ma X, Deng L, Zou Z, Pan Z, Feng L, Huang Z, Liang Z, Liu X, Li M, Su Z, Zheng H. Novel portable photoelectrochemical sensor based on CdS/Au/TiO 2 nanotube arrays for sensitive, non-invasive, and instantaneous uric acid detection in saliva. Talanta 2024; 271:125646. [PMID: 38218058 DOI: 10.1016/j.talanta.2024.125646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/04/2024] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
Uric acid (UA) monitoring is the most effective method for diagnosis and treatment of gout, hyperuricemia, hypertension, and other diseases. However, challenges remain regarding detection efficiency and rapid on-site detection. Here, we first synthesized a CdS/Au/TiO2-NTAs Z-scheme heterojunction material using a titanium dioxide nanotube array (TiO2-NTAs) as the substrate and modified with gold nanoparticles (Au) and cadmium sulfide particles (CdS). This material achieves bandgap alignment to generate a large number of electron-hole pairs under illumination. Then, using CdS/Au/TiO2-NTAs as the working electrode and molecularly imprinted polymers (MIP) as the recognition unit, we constructed a portable photoelectrochemical (PEC) sensor for non-invasive instant detection of UA concentration in human saliva, which has unique advantages in the field of high-sensitivity PEC instant detection. The portable MIP-PEC sensor achieves a linear range of 0.01-50 μM and a detection limit as low as 5.07 nM (S/N = 3). At the same time, the portable MIP-PEC sensor exhibits excellent sensitivity, specificity as well as stability, and shows no statistically significant difference compared to traditional high-performance liquid chromatography (HPLC) in practical sample detection. Compared to traditional PEC modes, this work demonstrates a novel and universal method for high-sensitivity instant detection in the field of PEC.
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Affiliation(s)
- Xiaolong Ma
- Institute of Life Sciences, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Lijun Deng
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Ziwei Zou
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Ziping Pan
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Linlin Feng
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Zheng Huang
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Zhenwu Liang
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Xinli Liu
- Institute of Life Sciences, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China
| | - Mei Li
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China.
| | - Zhiheng Su
- Pharmaceutical College, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China.
| | - Hua Zheng
- Institute of Life Sciences, Guangxi Medical University, No. 22 Shuang Yong Road, Qingxiu District, Nanning, 530021, China.
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14
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Tercanli H, Yavuz E, Yilmaz SG, Yardimci S. Mercury Concentration in Saliva and the Impact of Chewing: An Inductively Coupled Plasma Mass Spectrometry Study. Biol Trace Elem Res 2024; 202:1965-1971. [PMID: 37632686 DOI: 10.1007/s12011-023-03825-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/20/2023] [Indexed: 08/28/2023]
Abstract
Mercury, which is found in dental amalgams, is considered to be the most toxic non-radioactive element. However, the health policies of different countries have not reached a consensus on the use and safety of amalgam. This study aims to investigate the effect of amalgam restorations on mercury concentration in saliva, as well as the effect of restoration number, surface number, and chewing on this concentration. A total of 86 participants were included in this study (an equal number for the study and control groups). The number of amalgam restorations and their surfaces were recorded. While both unstimulated and stimulated saliva were collected from the study group, only unstimulated saliva was collected from the control group. The effect of chewing on mercury concentration was examined in the study group with unstimulated and stimulated saliva specimens using inductively coupled plasma mass spectrometry device. Mercury concentration in the unstimulated saliva was found to be higher in the study group compared to the control group (p= 0.000). As the number of amalgam restorations and the number of amalgam restoration surfaces increased, the mercury concentration in the saliva increased (p= 0.015 and p= 0.021, respectively). There was no statistically significant difference between mercury levels in the unstimulated saliva and the stimulated saliva (p=0.316). Chewing presented an insignificant difference in mercury concentration. Given this surprising result, the effect of chewing on mercury concentrations should be explored more extensively in future research.
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Affiliation(s)
- Humeyra Tercanli
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Akdeniz University, Dumlupınar Avenue, 07058, Antalya, Turkey
| | - Esra Yavuz
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Akdeniz University, Dumlupınar Avenue, 07058, Antalya, Turkey.
| | - Sevcihan Gunen Yilmaz
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Akdeniz University, Dumlupınar Avenue, 07058, Antalya, Turkey
| | - Selmi Yardimci
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Akdeniz University, Dumlupınar Avenue, 07058, Antalya, Turkey
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15
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Katsuno T, Kimura M, Terada-Hirashima J, Kazuyama Y, Ikeda M, Moriya A, Kurokawa M, Motohashi A, Isaka E, Morishita M, Kawajiri K, Hakkaku K, Saito S, Terayama Y, Sugiura Y, Yamaguchi Y, Takumida H, Watanabe H, Morita C, Tsukada A, Kusaba Y, Tsujimoto Y, Ishida A, Sakamoto K, Hashimoto M, Suzuki M, Takasaki J, Izumi S, Hojo M, Sugiyama H, Sugiura W. Diagnostic accuracy of direct reverse transcription-polymerase chain reaction using guanidine-based and guanidine-free inactivators for SARS-CoV-2 detection in saliva samples. J Virol Methods 2024; 326:114909. [PMID: 38452822 DOI: 10.1016/j.jviromet.2024.114909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 12/30/2023] [Accepted: 03/02/2024] [Indexed: 03/09/2024]
Abstract
This study aimed to evaluate diagnostic accuracy of SARS-CoV-2 RNA detection in saliva samples treated with a guanidine-based or guanidine-free inactivator, using nasopharyngeal swab samples (NPS) as referents. Based on the NPS reverse transcription-polymerase chain reaction (RT-PCR) results, participants were classified as with or without COVID-19. Fifty sets of samples comprising NPS, self-collected raw saliva, and saliva with a guanidine-based, and guanidine-free inactivator were collected from each group. In patients with COVID-19, the sensitivity of direct RT-PCR using raw saliva and saliva treated with a guanidine-based and guanidine-free inactivator was 100.0%, 65.9%, and 82.9%, respectively, with corresponding concordance rates of 94.3% (κ=88.5), 82.8% (κ=64.8), and 92.0% (κ=83.7). Among patients with a PCR Ct value of <30 in the NPS sample, the positive predictive value for the three samples was 100.0%, 80.0%, and 96.0%, respectively. The sensitivity of SARS-CoV-2 RNA detection was lower in inactivated saliva than in raw saliva and lower in samples treated with a guanidine-based than with a guanidine-free inactivator. However, in individuals contributing to infection spread, inactivated saliva showed adequate accuracy regardless of the inactivator used. Inactivators can be added to saliva samples collected for RT-PCR to reduce viral transmission risk while maintaining adequate diagnostic accuracy.
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Affiliation(s)
- Takashi Katsuno
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan.
| | - Moto Kimura
- Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Junko Terada-Hirashima
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | | | - Masato Ikeda
- SB Coronavirus Inspection Center Corp., Tokyo, Japan
| | - Ataru Moriya
- Clinical Laboratory Department, National Center for Global Health and Medicine, Tokyo, Japan
| | - Masami Kurokawa
- Clinical Laboratory Department, National Center for Global Health and Medicine, Tokyo, Japan
| | - Ayano Motohashi
- Clinical Laboratory Department, National Center for Global Health and Medicine, Tokyo, Japan
| | - Erina Isaka
- Clinical Laboratory Department, National Center for Global Health and Medicine, Tokyo, Japan
| | - Momoko Morishita
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kazuki Kawajiri
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kazuo Hakkaku
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Susumu Saito
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yuriko Terayama
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yuriko Sugiura
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yoh Yamaguchi
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Hiroshi Takumida
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Hiromu Watanabe
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Chie Morita
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Akinari Tsukada
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yusaku Kusaba
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yoshie Tsujimoto
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Akane Ishida
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Keita Sakamoto
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Masao Hashimoto
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Manabu Suzuki
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Jin Takasaki
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Shinyu Izumi
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Masayuki Hojo
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Haruhito Sugiyama
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Wataru Sugiura
- Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
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16
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Soysal F, Unsal B, Isler SC, Akca G, Bakirarar B, Ozcan M. Evaluation of salivary stress markers and inflammatory cytokine levels in peri-implantitis patients. Clin Oral Investig 2024; 28:290. [PMID: 38691206 PMCID: PMC11062951 DOI: 10.1007/s00784-024-05692-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND AND OBJECTIVE Psychological stress has been identified in some observational studies as a potential factor that may modify and affect periodontal diseases, but there are no similar data for peri-implantitis. The aim of this study was to determine the relationship between interleukin (IL)-1β, IL-6, IL-10, interferon (IFN)α inflammatory cytokines and the psychological stress-related markers, glucocorticoid receptor-α (GRα), and salivary α-amylase (sAA) gene expression levels in saliva samples obtained from healthy implants and peri-implantitis patients. MATERIALS AND METHODS The study included a total of 50 systemically healthy subjects. Peri-implant clinical parameters were recorded and psychological stress level was evaluated with the hospital anxiety and depression scale (HAD) and state-trait anxiety inventory (STAI) questionnaire forms. Following the evaluations, the patients were divided into 4 groups according their stress and clinical status (Ia, Ib, IIa, IIb). IL-1β, IL-6, IL-10, IFNα, GRα, sAA gene expression levels in the saliva samples were quantified by quantitative polymerase chain reaction (qPCR). RESULTS In the group of peri-implantitis who had a high score in stress level assessment scales, significantly higher IL-1β, IL-6, sAA expression levels were observed (p < 0.001). The IL-10 gene expression levels were lower in the groups with a high score in the stress level assessment scales (p < 0.001). GRα gene was expressed at lower levels in the group of peri-implantitis who had a high score in stress level assessment scales but the difference was not statistically significant (p = 0.065). CONCLUSION The study findings suggest that psychological stress may increase the inflammation associated with peri-implantitis by affecting cytokine expression levels. CLINICAL RELEVANCE To prevent peri-implantitis or reduce its prevalence, it could be beneficial to evaluate stress levels and identify individuals experiencing stress.
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Affiliation(s)
- Fatma Soysal
- Department of Periodontology, Faculty of Dentistry, Ankara Medipol University, Ankara, Turkey.
| | - Berrin Unsal
- Department of Periodontology, Faculty of Dentistry, Gazi University, Ankara, Turkey
| | - Sila Cagri Isler
- Department of Periodontology, Faculty of Dentistry, Gazi University, Ankara, Turkey
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Gulcin Akca
- Department of Medical Microbiology, Faculty of Dentistry, Gazi University, Ankara, Turkey
| | - Batuhan Bakirarar
- Department of Biostatistics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Mustafa Ozcan
- Department of Periodontology, Faculty of Dentistry, Cukurova University, Adana, Turkey
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Seizer L, Stasielowicz L, Löchner J. Timing matters: A meta-analysis on the dynamic effect of stress on salivary immunoglobulin. Brain Behav Immun 2024; 119:734-740. [PMID: 38701886 DOI: 10.1016/j.bbi.2024.04.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 04/04/2024] [Accepted: 04/23/2024] [Indexed: 05/05/2024] Open
Abstract
The impact of psychological stress on physiological systems has been a focus of extensive research, particularly in understanding its diverse effects on immune system activity and disease risk. This meta-analysis explores the dynamic effect of acute stress on salivary immunoglobulin-A (S-IgA) levels, a key biomarker for secretory immunity within the oral environment. Analyzing data from 34 samples comprising 87 effect sizes and a total of 1,025 subjects, a multi-level approach is employed to account for the temporal variability in measuring the stress response. The results reveal a significant increase in S-IgA levels peaking around 10 min after stress exposure, followed by a return to baseline levels approximately 30 min later. In addition, the meta-analysis identified several research gaps of the extant literature, such as limitations in the considered time lag after stress. In conclusion, the findings emphasize the temporal nuances of the S-IgA response to stress, which can help to infer potential biological pathways and guide sampling designs in future studies. Further, we highlight the use of a multi-level meta-analysis approach to investigate the temporal dependencies of the interplay between stress and immune functioning.
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Affiliation(s)
- Lennart Seizer
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Tübingen, Germany; German Center for Mental Health (DZPG), Germany.
| | | | - Johanna Löchner
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Tübingen, Germany; German Center for Mental Health (DZPG), Germany
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18
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Wint WY, Miyanohara M, Yamada H, Nakatsuka T, Okamoto M, Ryo K, Tanaka T, Hanada N, Murata T. Rapid multiplex real-time PCR assay using a portable device for the detection of oral pathogens. Diagn Microbiol Infect Dis 2024; 109:116214. [PMID: 38402755 DOI: 10.1016/j.diagmicrobio.2024.116214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024]
Abstract
Colonization by several oral pathogens and the onset of oral diseases, such as dental caries and periodontal diseases, are closely related. Therefore, the analysis of pathogens in oral specimens would be helpful for the risk assessment of oral diseases. We developed a rapid multiplex real-time polymerase chain reaction (PCR) method using a portable device and newly designed probe/primer sets to detect the oral pathogens Streptococcus mutans, Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia. The theoretical minimum detectable cell numbers of S. mutans, P. gingivalis, T. denticola, and T. forsythia were 1, 1, 4, and 3, respectively. The multiplex real-time PCR system simultaneously detected the colonization of S. mutans and P. gingivalis in human saliva. These results suggest that the multiplex real-time PCR system may be useful for the risk assessment of oral diseases.
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Affiliation(s)
- Wit Yee Wint
- Department of Oral Health Science, Tsurumi University School of Dental Medicine, Tsurumi, 230-8501 Yokohama, Japan
| | - Mayu Miyanohara
- Department of Oral Health Science, Tsurumi University School of Dental Medicine, Tsurumi, 230-8501 Yokohama, Japan
| | - Hidenori Yamada
- Department of Oral Health Science, Tsurumi University School of Dental Medicine, Tsurumi, 230-8501 Yokohama, Japan
| | - Takako Nakatsuka
- Department of Oral Health Science, Tsurumi University School of Dental Medicine, Tsurumi, 230-8501 Yokohama, Japan
| | - Masaaki Okamoto
- Department of Oral Health Science, Tsurumi University School of Dental Medicine, Tsurumi, 230-8501 Yokohama, Japan
| | - Koufuchi Ryo
- Department of Oral Health Science, Tsurumi University School of Dental Medicine, Tsurumi, 230-8501 Yokohama, Japan
| | - Tomoko Tanaka
- Department of Oral Health, School of Life Dentistry at Tokyo, Nippon Dental University, Fujimi, Chiyoda-ku, Tokyo, 102-8159 Japan
| | - Nobuhiro Hanada
- Department of Oral Health Science, Tsurumi University School of Dental Medicine, Tsurumi, 230-8501 Yokohama, Japan
| | - Takatoshi Murata
- Department of Oral Health Science, Tsurumi University School of Dental Medicine, Tsurumi, 230-8501 Yokohama, Japan.
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19
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Liu P, Wen W, Yu KF, Tong RWM, Gao X, Lo ECM, Wong MCM. Can oral microbiome predict low birth weight infant delivery? J Dent 2024; 146:105018. [PMID: 38679133 DOI: 10.1016/j.jdent.2024.105018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 04/18/2024] [Accepted: 04/22/2024] [Indexed: 05/01/2024] Open
Abstract
OBJECTIVES This study aimed to identify the oral microbiota factors contributing to low birth weight (LBW) in Chinese pregnant women and develop a prediction model using machine learning. METHODS A nested case-control study was conducted in a prospective cohort of 580 Chinese pregnant women, with 23 LBW cases and 23 healthy delivery controls matched for age and smoking habit. Saliva samples were collected at early and late pregnancy, and microbiome profiles were analyzed through 16S rRNA gene sequencing. RESULTS The relative abundance of Streptococcus was over-represented (median 0.259 vs. 0.116) and Saccharibacteria_TM7 was under-represented (median 0.033 vs. 0.068) in the LBW case group than in controls (p < 0.001, p = 0.015 respectively). Ten species were identified as microbiome biomarkers of LBW by LEfSe analysis, which included 7 species within the genus of Streptococcus or as part of 'nutritionally variant streptococci' (NVS), 2 species of opportunistic pathogen Leptotrichia buccalis and Gemella sanguinis (all LDA score>3.5) as risk biomarkers, and one species of Saccharibacteria TM7 as a beneficial biomarker (LDA= -4.5). The machine-learning model based on these 10 distinguished oral microbiota species could predict LBW, with an accuracy of 82 %, sensitivity of 91 %, and specificity of 73 % (AUC-ROC score 0.89, 95 % CI: 0.75-1.0). Results of α-diversity showed that mothers who delivered LBW infants had less stable salivary microbiota construction throughout pregnancy than the control group (measured by Shannon, p = 0.048; and Pielou's, p = 0.021), however the microbiome diversity did not improve the prediction accuracy of LBW. CONCLUSIONS A machine-learning oral microbiome model shows promise in predicting low-birth-weight delivery. Even in cases where oral health is not significantly compromised, opportunistic pathogens or rarer taxa associated with adverse pregnancy outcomes can still be identified in the oral cavity. CLINICAL SIGNIFICANCE This study highlights the potential complexity of the relationship between oral microbiome and pregnancy outcomes, indicating that mechanisms underlying the association between oral microbiota and adverse pregnancy outcomes may involve complex interactions between host factors, microbiota, and systemic conditions. Using machine learning to develop a predictive model based on specific oral microbiota biomarkers provides a potential for personalized medicine approaches. Future prediction models should incorporate clinical metadata to be clinically useful for improving maternal and child health.
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Affiliation(s)
- Pei Liu
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.
| | - Weiye Wen
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Xicheng District, Beijing, China; Dental Public Health, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Ka Fung Yu
- Dental Public Health, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Raymond Wai Man Tong
- Central Research Laboratories, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Xiaoli Gao
- Faculty of Dentistry & Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - Edward Chin Man Lo
- Dental Public Health, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - May Chun Mei Wong
- Dental Public Health, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.
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Wang J, Hu C, Ma X, Zhang Y, Zhang X, Hong X, Chen L, Wang Y, Wang J, Chen S, Zhang Q, Wu Y, Wu M, Chen Y, Song Z, Sun X, Zhao S, Huang S. The role of oxidative stress biomarkers in the development of peri-implant disease: A systematic review and meta-analysis. J Dent 2024; 146:105026. [PMID: 38679134 DOI: 10.1016/j.jdent.2024.105026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/11/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024] Open
Abstract
OBJECTIVES To analyze the role of oxidative stress (OS) biomarkers in peri‑implant diseases using a systematic review and meta-analysis approach. DATE: The review incorporated cross-sectional studies, randomized controlled trials, and case-control trials to evaluate the differences in OS biomarkers of peri‑implant disease. SOURCES A comprehensive literature search was conducted in electronic databases such as PubMed, Scopus, Embase, Web of Science, and CNKI, and no restrictions were applied during the search process. STUDY SELECTION A total of 452 studies were identified, of which 18 were eligible for inclusion. Risk of bias and sensitivity analysis were assessed using Egger's test and funnel plots. RESULTS We found that the levels of glutathione peroxidase (GSH-Px) in the peri‑implant sulcus fluid (PISF) of patients with peri‑implant diseases were significantly reduced (SMD = -1.40; 95 % CI = 1.70, -1.11; p < 0.001), while the levels of total myeloperoxidase (MPO) and malondialdehyde (MDA) were significantly increased (SMD = 0.46; 95 % CI = 0.12, 0.80; p = 0.008; SMD = 0.28; 95 % CI = 0.01, 0.56; p = 0.043). However, there were no significant differences of MPO concentration (SMD = 0.38; 95 % CI = -0.39, 1.15; p = 0.331) and superoxide dismutase (SOD)(SMD = -0.43; 95 % CI = -1.94, 1.07; p = 0.572) in PISF between peri‑implant disease group and control group. Similarly, salivary MPO did not show significant differences (SMD = 1.62; 95 % CI = -1.01, 4.24; p = 0.227). CONCLUSIONS Our results supported that the level of local OS biomarkers was closely related to peri‑implant diseases. GSH-Px, total MPO and MDA may be PISF biomarkers with good capability to monitor the development of peri‑implant disease. CLINICAL SIGNIFICANCE This study found significant differences in the levels of local OS biomarkers (GSH-Px, total MPO, and MDA) between patients with peri‑implant diseases and healthy subjects, which may be ideal candidate biomarkers for predicting and diagnosing peri‑implant diseases.
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Affiliation(s)
- Jiaying Wang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Chaoming Hu
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Xinyi Ma
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yichi Zhang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Xuejia Zhang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; School of Dentistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Xinhua Hong
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Liang Chen
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yilin Wang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Jun Wang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Shuomin Chen
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Qinhui Zhang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yutian Wu
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Menghan Wu
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yuge Chen
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; School of Dentistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Zhongchen Song
- Department of Periodontology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - Xiaoyu Sun
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Periodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China.
| | - Shufan Zhao
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Oral and Maxillofacial Surgery, School of Stomatology, Wenzhou Medical University, Wenzhou, China.
| | - Shengbin Huang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China; Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China.
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Pachimsawat P, Tammayan M, Do TKA, Jantaratnotai N. The Use of Coffee Aroma for Stress Reduction in Postgraduate Dental Students. Int Dent J 2024:S0020-6539(24)00105-9. [PMID: 38677970 DOI: 10.1016/j.identj.2024.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/27/2024] [Accepted: 03/31/2024] [Indexed: 04/29/2024] Open
Abstract
OBJECTIVES This study aimed to investigate the potential reduction of academic stress related to a graded oral presentation in postgraduate dental students using coffee aromatherapy. METHODS Healthy postgraduate dental students in a seminar class were divided into coffee (n = 32) and control (n = 26) groups. There were 3 modes of aroma distribution: personal distribution with a coffee pad attached to a lanyard, a lanyard plus a personal fan for ventilation of the aroma, and the typical method of the diffuser to spread the aroma in the ambient air. Stress markers comprised levels of salivary alpha-amylase (sAA), cortisol (sCort), and chromogranin A (sCgA). Pulse rates were also measured. RESULTS Levels of sAA increased 176.62% ± 30.26% between pre- and postpresentation in the control group. Inhaling coffee aroma during the presentation period significantly ameliorated sAA increase at 81.02% ± 14.90% (P = .015). sCort levels tended to decrease in the coffee group, but not significantly. Surprisingly, sCgA levels increased more in the coffee group. Also, pulse rates decreased in the coffee group (-2.07 ± 2.81 bpm) and increased in the control group (6.90 ± 3.22 bpm; P = .035). Subgroup analysis did not reveal differences in salivary markers amongst the 3 aroma distribution modes. CONCLUSIONS Coffee aroma could have an anxiolytic effect on postgraduate dental students, as evidenced by changes in sAA levels and pulse rates. Personal aroma distribution was also a useful and effective mode of aromatherapy.
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Affiliation(s)
- Praewpat Pachimsawat
- Department of Advanced General Dentistry, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Manita Tammayan
- Department of Advanced General Dentistry, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Thi Kim Anh Do
- Department of Advanced General Dentistry, Faculty of Dentistry, Mahidol University, Bangkok, Thailand; Department of Prosthodontic, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at HCM City, Ho Chi Minh City, Vietnam
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22
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Alshamsi MHA, Koippallil Gopalakrishnan AR, Rahman B, Acharya AB. Evaluation of salivary placental growth factor in Health and Periodontitis. BMC Oral Health 2024; 24:493. [PMID: 38671416 PMCID: PMC11046858 DOI: 10.1186/s12903-024-04282-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Various immune mediators have a role in the progression of periodontitis. Placental Growth Factor (PLGF) is important during pregnancy and also is involved in the pathology of several diseases. Hence, this study aimed to evaluate salivary PLGF in health and periodontitis that seemingly has not been reported earlier. METHODS Fifty participants were grouped as healthy and periodontitis patients. Clinical history, periodontal parameters [Plaque Index (PI), Gingival Index (GI), probing pocket depth (PPD), clinical attachment loss (CAL), bleeding on probing (BoP)] were recorded; saliva was collected and PLGF was estimated using a commercially available ELISA kit. The data were statistically analyzed using Shapiro-Wilk's test, Kruskal-Wallis test, Dunn's post hoc test with Bonferroni correction, and Spearman's rank-order correlation coefficient. The significance level was set at p ≤ 0.05 for all tests. RESULTS Salivary PLGF levels comparison between the two groups showed no significant difference between both groups. Quantitatively, females had higher salivary PLGF levels than males. No significant association was observed between salivary PLGF levels and the severity of periodontitis. The periodontitis group showed statistically significant correlations between salivary PLGF levels, BoP(p = 0.005) and PPD(p = 0.005), and significant correlations of PLGF with PPD (p = 0.035) for both groups. CONCLUSIONS PLGF can be detected and measured in the saliva of healthy individuals and periodontitis patients. However, the role of PLGF in periodontal pathology needs to be further confirmed based on their salivary levels.
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Affiliation(s)
| | | | - Betul Rahman
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah, UAE
| | - Anirudh B Acharya
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah, UAE.
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23
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da Silva SMSD, Ferreira CL, Rizzato JMB, Toledo GDS, Furukawa M, Rovai ES, Nogueira MS, Carvalho LFDCESD. Infrared spectroscopy for fast screening of diabetes and periodontitis. Photodiagnosis Photodyn Ther 2024; 46:104106. [PMID: 38677501 DOI: 10.1016/j.pdpdt.2024.104106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/12/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024]
Abstract
SIGNIFICANCE FT-IR is an important and emerging tool, providing information related to the biochemical composition of biofluids. It is important to demonstrate that there is an efficacy in separating healthy and diseased groups, helping to establish FT-IR uses as fast screening tool. AIM Via saliva diagnosis evaluate the accuracy of FT-IR associate with machine learning model for classification among healthy (control group), diabetic (D) and periodontitis (P) patients and the association of both diseases (DP). APPROACH Eighty patients diagnosed with diabetes and periodontitis through conventional methods were recruited and allocated in one of the four groups. Saliva samples were collected from participants of each group (n = 20) and were processed using Bruker Alpha II spectrometer in a FT-IR spectral fingerprint region between 600 and-1800 cm-1, followed by data preprocessing and analysis using machine learning tools. RESULTS Various FTI-R peaks were detectable and attributed to specific vibrational modes, which were classified based on confusion matrices showed in paired groups. The highest true positive rates (TPR) appeared between groups C vs D (93.5 % ± 2.7 %), groups C vs. DP (89.2 % ± 4.1 %), and groups D and P (90.4 % ± 3.2 %). However, P vs DP presented higher TPR for DP (84.1 % ±3.1 %) while D vs. DP the highest rate for DP was 81.7 % ± 4.3 %. Analyzing all groups together, the TPR decreased. CONCLUSION The system used is portable and robust and can be widely used in clinical environments and hospitals as a new diagnostic technique. Studies in our groups are being conducted to solidify and expand data analysis methods with friendly language for healthcare professionals. It was possible to classify healthy patients in a range of 78-93 % of accuracy. Range over 80 % of accuracy between periodontitis and diabetes were observed. A general classification model with lower TPR instead of a pairwise classification would only have advantages in scenarios where no prior patient information is available regarding diabetes and periodontitis status.
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Affiliation(s)
| | | | | | | | - Monique Furukawa
- Science Health Post-graduate Program, University of Taubaté - UNITAU, SP, Brazil
| | - Emanuel Silva Rovai
- Department of Diagnosis and Surgery, Institute of Science and Technology of São José dos Campos, Universidade Estadual Paulista (Unesp), São José Dos Campos, SP, Brazil
| | - Marcelo Saito Nogueira
- Tyndall National Institute, University College Cork, Cork, Ireland; Department of Physics, University College Cork, Cork, Ireland.
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24
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Park J, Jung SY, Kim HY, Lee KE, Go YJ, Kim HS, Yoon SY, Kwon CO, Park YS. Microbiomic association between the saliva and salivary stone in patients with sialolithiasis. Sci Rep 2024; 14:9184. [PMID: 38649387 PMCID: PMC11035639 DOI: 10.1038/s41598-024-59546-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 04/11/2024] [Indexed: 04/25/2024] Open
Abstract
Salivary stones, known as sialoliths, form within the salivary ducts due to abnormal salivary composition and cause painful symptoms, for which surgical removal is the primary treatment. This study explored the role of the salivary microbial communities in the formation of sialoliths. We conducted a comparative analysis of microbial communities present in the saliva and salivary stones, and sequenced the 16S rRNA gene in samples obtained from patients with sialoliths and from healthy individuals. Although the diversity in the saliva was high, the essential features of the microbial environment in sialoliths were low diversity and evenness. The association of microbial abundance between stones and saliva revealed a positive correlation between Peptostreptococcus and Porphyromonas, and a negative correlation for Pseudomonas in saliva. The functional potential differences between saliva and stones Bacterial chemotaxis and the citrate cycle were negatively correlated with most genera found in salivary stone samples. However, the functions required for organic compound degradation did not differ between the saliva samples. Although some microbes were shared between the sialoliths and saliva, their compositions differed significantly. Our study presents a novel comparison between salivary stones and salivary microbiomes, suggesting potential preventive strategies against sialolithiasis.
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Affiliation(s)
- Jiwon Park
- Department of Biological Sciences and Biotechnology, School of Biological Sciences, College of Natural Sciences, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Soo Yeon Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, Seoul, 07865, Republic of Korea.
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul, 07985, Republic of Korea.
| | - Ha Yeong Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, Seoul, 07865, Republic of Korea
| | - Kyeong Eun Lee
- Department of Biological Sciences and Biotechnology, School of Biological Sciences, College of Natural Sciences, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Yu Jin Go
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, Seoul, 07865, Republic of Korea
| | - Han Su Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, Seoul, 07865, Republic of Korea
| | | | - Cheol-O Kwon
- MD Healthcare Inc., Seoul, 03923, Republic of Korea
| | - Yoon Shin Park
- Department of Biological Sciences and Biotechnology, School of Biological Sciences, College of Natural Sciences, Chungbuk National University, Cheongju, 28644, Republic of Korea.
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25
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Staruch M, Speth MM, Neyer P, Riesterer O, Aebersold DM, Stieb S. Radiation-associated changes in saliva composition of head and neck cancer patients: A systematic review. Radiother Oncol 2024:110279. [PMID: 38648994 DOI: 10.1016/j.radonc.2024.110279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 04/25/2024]
Abstract
Xerostomia is a common radiation-associated toxicity in patients with head and neck cancer. Although several studies examined the decrease in saliva production due to radiotherapy (RT) and investigated the factors associated with this side effect, little is known about the change in radiation-associated saliva composition. This systematic review is the first to summarize existing data and give an overview of the change in pH/buffer capacity, electrolytes, proteins, enzymes, and mucins due to radiation to the salivary glands. Literature search was performed in PubMed and Embase with 47 articles finally eligible for the review, analyzing the saliva composition at several time points before, during and/or after RT, or comparing findings in irradiated patients to a healthy control group. Overall, RT leads to a substantial decrease in salivary pH and buffer capacity. For sodium, chloride and calcium ion, and amylase, an increased concentration or activity during RT was reported in most of the studies, followed by a subsequent decrease either already during RT or after the end of treatment. Different trends have been described for the total protein concentration during and after RT. Lactoferrin, however, increased considerably, especially in the first phase of RT. Mucin 5B (MUC5B) concentrations showed a slight increase during RT and concentrations around baseline values again six months post-radiotherapy.
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Affiliation(s)
- Michal Staruch
- Radiation Oncology Center KSA-KSB, Cantonal Hospital Aarau, Aarau, Switzerland; Department of Radiation Oncology, University Hospital Bern, Bern, Switzerland
| | - Marlene M Speth
- Otorhinolaryngology, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Peter Neyer
- Department of Laboratory Medicine, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Oliver Riesterer
- Radiation Oncology Center KSA-KSB, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Daniel M Aebersold
- Department of Radiation Oncology, University Hospital Bern, Bern, Switzerland
| | - Sonja Stieb
- Radiation Oncology Center KSA-KSB, Cantonal Hospital Aarau, Aarau, Switzerland.
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Gutiérrez-Gómez ML, Ruíz Z, Gamboa F, Roa NS, Cardozo C, Ariza B, Aristizábal A, Lugo A, Bolívar S, Henao D, García-Robayo DA. SARS-CoV-2 diagnosis in saliva samples: Usefulness and limitations. Diagn Microbiol Infect Dis 2024; 109:116320. [PMID: 38678688 DOI: 10.1016/j.diagmicrobio.2024.116320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 05/01/2024]
Abstract
Saliva samples are important for diagnosis, because they are noninvasive and easy to acquire. The objective of this cross-sectional study was to investigate the value saliva samples have in detecting SARS-CoV-2 in comparison to nasal swabs and a new system named CovidCheck. A standard methodology identified the virus in 185 nasopharyngeal swabs and saliva samples revealing a sensitivity, specificity and positive and negative predictive values of 82,100,100 and 94.67%, respectively for saliva samples. Viral presence in saliva samples with the standard methodology in comparison to the CovidCheck system was evaluated in 67 samples with sensitivity, specificity and positive and negative predictive values of 68, 81, 68 and 81%, respectively. In conclusion, our results highlight the usefulness saliva samples have in detecting respiratory viral infections. However, presence of viral inhibitors and viral load in saliva, and the patient's clinical status should be considered as they might affect amplifying systems results.
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Affiliation(s)
- María-Lucía Gutiérrez-Gómez
- Department of Morphological Sciences, School of Medicine, Pontificia Universidad Javeriana, Bogotá D.C, Colombia; Institute of Human Genetics, School of Medicine, Pontificia Universidad Javeriana, Bogotá D.C., Colombia.
| | - Zulema Ruíz
- Clinical Laboratory, San Ignacio University Hospital, Bogotá, D.C., Colombia
| | - Fredy Gamboa
- Center for Dental Research, School of Dentistry, Pontificia Universidad Javeriana, Bogotá D.C., Colombia; Department of Microbiology, School of Sciences, Pontificia Universidad Javeriana, Bogotá D.C., Colombia
| | - Nelly S Roa
- Center for Dental Research, School of Dentistry, Pontificia Universidad Javeriana, Bogotá D.C., Colombia; Department of Buccal System, School of Dentistry, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia
| | - Claudia Cardozo
- Clinical Laboratory, San Ignacio University Hospital, Bogotá, D.C., Colombia
| | - Beatriz Ariza
- Clinical Laboratory, San Ignacio University Hospital, Bogotá, D.C., Colombia
| | - Andrés Aristizábal
- Department of Nutrition and Biochemistry, School of Sciences, Pontificia Universidad Javeriana, Bogotá D.C., Colombia
| | - Andrés Lugo
- Department of Respiratory Care, respIRA group, San Ignacio University Hospital, Bogotá, D.C., Colombia
| | - Stevenson Bolívar
- Department of Industrial Engineering, School of Engineering, Pontificia Universidad Javeriana, Bogotá, D. C., Colombia
| | - Daniel Henao
- Department of Dental System, School of Dentistry, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia
| | - Dabeiba-Adriana García-Robayo
- Center for Dental Research, School of Dentistry, Pontificia Universidad Javeriana, Bogotá D.C., Colombia; Department of Buccal System, School of Dentistry, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia.
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Uemura I, Takahashi-Suzuki N, Sano A, Yamada S, Nakata A, Satoh T. Curcumin effects on age-related changes in oral immunity: an in vivo study. Br J Nutr 2024:1-9. [PMID: 38634264 DOI: 10.1017/s0007114524000801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
The current study aimed to investigate the effects of ageing on oral immunity using β-defensin (DEFB) 1/2 as a marker and evaluate the effects of curcumin (CUR) on these processes. The study sample included thirty male C57BL/6J mice divided into three groups based on the treatment method used. The young control (YC) and old control (OC) groups received 0·5 % methylcellulose-400 (CUR vehicle) orally for 5 days, whereas the CUR group of older mice received a CUR solution suspended in 0·5 % methylcellulose-400 (dose: 3·0 mg/kg body). DEFB1/2 and immune indicator levels were measured in the saliva and salivary glands post-treatment. The saliva volume and protein content were significantly reduced in the OC group compared with the YC group. CUR administration restored these parameters, decreased DEFB1 expression in the salivary gland and increased DEFB1/2 secretion and DEFB2 expression. These findings were supported by epigenetic gene regulation and partial cytokine activation from changes in WD40 repeat protein 5, TNF alpha and IL-1beta. CUR can partially restore age-related changes in oral immune responses and promote oral health, thereby preventing frailty in the older population through a nutritional therapeutic pathway.
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Affiliation(s)
- Ippei Uemura
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, 7-Jo 15-4-1 Maeda, Teine-ku, Sapporo, Hokkaido006-8585, Japan
| | - Natsuko Takahashi-Suzuki
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, 7-Jo 15-4-1 Maeda, Teine-ku, Sapporo, Hokkaido006-8585, Japan
| | - Akari Sano
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, 7-Jo 15-4-1 Maeda, Teine-ku, Sapporo, Hokkaido006-8585, Japan
| | - Shogo Yamada
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, 7-Jo 15-4-1 Maeda, Teine-ku, Sapporo, Hokkaido006-8585, Japan
| | - Akifumi Nakata
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, 7-Jo 15-4-1 Maeda, Teine-ku, Sapporo, Hokkaido006-8585, Japan
| | - Takashi Satoh
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, 7-Jo 15-4-1 Maeda, Teine-ku, Sapporo, Hokkaido006-8585, Japan
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Raghuthaman S, Bansal K, Quadri JA, Mathur VP, Tewari N, Morankar R. Salivary and urinary assessment of fluoride and silver ion concentrations after silver diamine fluoride application in children: a prospective cohort study. Eur Arch Paediatr Dent 2024:10.1007/s40368-024-00897-4. [PMID: 38635111 DOI: 10.1007/s40368-024-00897-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 03/19/2024] [Indexed: 04/19/2024]
Abstract
PURPOSE The purpose of the study was to determine the fluoride (F) and silver (Ag) ions levels in the saliva and urine of healthy children after silver diamine fluoride (SDF) application on dental carious lesions. METHODS Sixty children (4-6 years with ≥ 3 caries lesions) were recruited from the outpatient department of Pediatric Dentistry. From each child, 3 ml unstimulated saliva samples were collected at baseline, one hour, and 24 h after SDF application. Similarly, 3 ml urine samples were collected prior to and after 24 h of SDF application. F and Ag ion concentrations were determined by fluoride ion-selective electrode (ISE) and inductively coupled plasma mass spectrometry (ICPMS), respectively. RESULTS The mean ± standard deviation (SD) baseline, 1-h, and 24-h salivary F concentrations (ppm) were 0.07 ± 0.07, 0.93 ± 0.48, and 0.19 ± 0.19, respectively, while the mean baseline and 24-h urinary F concentrations (ppm) were 0.33 ± 0.20 ppm and 0.43 ± 0.25 ppm, respectively. The mean baseline, 1-h, and 24-h salivary Ag concentrations (ppb) were 4.22 ± 3.15, 4198 ± 350, and 56.93 ± 37, respectively. The mean baseline and 24-h urinary Ag concentrations (ppb) were 2.80 ± 2.93 ppb and 4.72 ± 4.0 ppb, respectively. There were statistically elevated F and Ag ion concentrations at 1 h and 24 h after SDF application as compared to the baseline. CONCLUSION Salivary and urinary F and Ag ions concentrations elevated significantly at 24 h following SDF applications in children. A significant high recovery of these ions in urine indicates minimal systemic absorption, thus intermittent topical application of 38% SDF has a minimal risk of toxicity.
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Affiliation(s)
- S Raghuthaman
- Department of Pediatric & Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - K Bansal
- Department of Pediatric & Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, India.
| | - J A Quadri
- Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India
| | - V P Mathur
- Department of Pediatric & Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - N Tewari
- Department of Pediatric & Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - R Morankar
- Department of Pediatric & Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, India
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Kamounah S, Wei F, Park JK, Song YW, Chia D, Wong DTW, Pedersen AML. Seronegative patients with primary Sjögren's syndrome and non-pSS sicca test positive for anti-SSA/Ro52 and -Ro60 in saliva. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167168. [PMID: 38641012 DOI: 10.1016/j.bbadis.2024.167168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024]
Abstract
OBJECTIVES Testing for anti-SSA/Ro antibodies in serum is essential in the diagnostic work-up for primary Sjögren's syndrome (pSS). In this study, we aimed to validate our previous assay for detection of salivary anti-SSA/Ro52, and to develop assays for detection of salivary anti-SSA/Ro60 and for detection of anti-Ro52 and -Ro60 in plasma using the electric field-induced release and measurement (EFIRM) platform. METHODS Whole saliva samples from two independent Danish cohorts (DN1 and DN2) including 49 patients with pSS, 73 patients with sicca symptoms, but not fulfilling the classification criteria for pSS (non-pSS sicca), and 51 healthy controls (HC), as well as plasma samples from the DN1 cohort were analyzed using EFIRM to detect anti-SSA/Ro52 and -Ro60. RESULTS In the DN1 cohort, 100 % in the pSS group and 16 % in the non-pSS sicca group were serum anti-SSA/Ro positive by ELISA. EFIRM detected anti-SSA (Ro52 and/or -Ro60) in plasma and saliva in 100 % and 96 % patients with pSS, and 16 % and 29 % with non-pSS sicca. In the DN2 cohort, 80 % patients with pSS and 26 % with non-pSS sicca were serum anti-SSA/Ro positive. Salivary anti-SSA discriminated patients with pSS from HC and non-pSS sicca with an AUC range of 0.74-0.96 in the DN1 and DN2 cohorts. EFIRM discriminated pSS from non-pSS sicca with an AUC of 0.98 in plasma. CONCLUSION Our findings suggest that salivary anti-SSA/Ro antibodies are potential discriminatory biomarkers for pSS, which may also identify seronegative patients, addressing the unmet clinical need of early detection and stratification of pSS.
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Affiliation(s)
- Sarah Kamounah
- Center of Oral/Head & Neck Oncology Research, UCLA School of Dentistry, Los Angeles, CA, USA; Department of Odontology, Section of Oral Biology and Immunopathology/Oral Medicine & Pathology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Fang Wei
- Center of Oral/Head & Neck Oncology Research, UCLA School of Dentistry, Los Angeles, CA, USA
| | - Jin Kyun Park
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Yeong-Wook Song
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - David Chia
- Department of Pathology & Laboratory Medicine, David Geffen UCLA School of Medicine, Los Angeles, CA, USA
| | - David T W Wong
- Center of Oral/Head & Neck Oncology Research, UCLA School of Dentistry, Los Angeles, CA, USA
| | - Anne Marie Lynge Pedersen
- Department of Odontology, Section of Oral Biology and Immunopathology/Oral Medicine & Pathology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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Marín-Echeverri C, Pérez-Zapata L, Álvarez-Acevedo L, Gutiérrez-Hincapié S, Adams-Parra M, Tirado-Duarte D, Bolívar-Muñoz J, Gallego-Gómez M, Galeano-Castañeda Y, Piedrahita-Ochoa C, Del Valle Arrieta H. Diagnostic performance, stability, and acceptability of self-collected saliva without additives for SARS-CoV-2 molecular diagnosis. Eur J Clin Microbiol Infect Dis 2024:10.1007/s10096-024-04819-6. [PMID: 38613706 DOI: 10.1007/s10096-024-04819-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/20/2024] [Indexed: 04/15/2024]
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused the coronavirus disease 2019 (COVID-19), leading to a global pandemic. The molecular diagnosis of this virus is mostly performed by collecting upper respiratory samples, which has many disadvantages, including patient discomfort and the need for trained healthcare professionals. Although saliva has emerged as a more comfortable sample, the use of additives to preserve viral RNA is expensive and, in some cases, difficult for self-collection. METHOD This study evaluated the diagnostic performance by RT-PCR and stability of self-collected saliva using wide-mouth specimen collection cups without stabilization and/or inactivation buffers for SARS-CoV-2 detection, compared to nasopharyngeal samples and saliva collected with additives. Additionally, the study assessed the acceptability of this sample collection method among participants and healthcare personnel. RESULTS The study included 1281 volunteers with a 24.6% positive infection rate. Saliva demonstrated comparable diagnostic performance to nasopharyngeal samples, with a sensitivity of 87.6% and specificity of 99.6%, for a total percent agreement of 96.4%. The study also showed that viral RNA in saliva remained stable for at least 72 h at different temperatures. Notably, saliva samples without additives exhibited a lower RdRp Ct compared to samples with additives, suggesting that the absence of stabilization and/or inactivation buffers does not significantly affect its performance. The study highlighted the acceptability of saliva among patients and healthcare personnel due to its noninvasive nature and ease of collection. CONCLUSIONS This research supports the implementation of self-collected saliva as a comfortable and user-friendly alternative sample for SARS-CoV-2 diagnosis.
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Deutsch F, Sais D, Keatinge N, Hill M, Tran NH, Elliott M, Tran N. Biplex quantitative PCR to detect transcriptionally active human papillomavirus 16 from patient saliva. BMC Cancer 2024; 24:442. [PMID: 38600473 PMCID: PMC11005208 DOI: 10.1186/s12885-024-12125-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 03/14/2024] [Indexed: 04/12/2024] Open
Abstract
Head and neck cancers, particularly oropharyngeal cancers (OPC), have been increasingly associated with human papillomavirus (HPV) infections, specifically HPV16. The current methods for HPV16 detection primarily rely on p16 staining or PCR techniques. However, it is important to note the limitations of conventional PCR, as the presence of viral DNA does not always indicate an ongoing viral infection. Moreover, these tests heavily rely on the availability of tissue samples, which can present challenges in certain situations. In this study, we developed a RT-qPCR biplex approach to detect HPV16 oncogenes E6 and E7 RNA in saliva samples from OPC patients. Salivary supernatant was used as the liquid biopsy source. We successfully obtained RNA from salivary supernatant, preserving its integrity as indicated by the detection of several housekeeping genes. Our biplex approach accurately detected E6 and E7 RNA in HPV16-positive cell lines, tissues, and finally in OPC salivary samples. Importantly, the assay specifically targeted HPV16 and not HPV18. This biplexing technique allowed for reduced sample input without compromising specificity. In summary, our approach demonstrates the potential to detect viable HPV16 in saliva from OPC patients. Since the assay measures HPV16 RNA, it provides insights into the transcriptional activity of the virus. This could guide clinical decision-making and treatment planning for individuals with HPV-related OPC.
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Affiliation(s)
- Fiona Deutsch
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, Australia
| | - Dayna Sais
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, Australia
| | - Ni Keatinge
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, Australia
| | - Meredith Hill
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, Australia
| | - Ngoc Ha Tran
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, Australia
| | - Michael Elliott
- Chris O'Brien Lifehouse, Sydney, NSW, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Nham Tran
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, Australia.
- Chris O'Brien Lifehouse, Sydney, NSW, Australia.
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Alajbeg IZ, Vrbanovic E, Alajbeg I, Orabovic I, Naka K, Mrla A, Boucher Y. Time-course of pain and salivary opiorphin release in response to oral capsaicin differ in burning mouth syndrome patients, temporomandibular disorders patients and control subjects. Clin Oral Investig 2024; 28:246. [PMID: 38589630 DOI: 10.1007/s00784-024-05653-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 04/03/2024] [Indexed: 04/10/2024]
Abstract
OBJECTIVES Opiorphin is an analgesic peptide released by salivary glands and capsaicin an agonist of TRPV1 receptors eliciting burning sensations. The primary objective of this study was to assess opiorphin release after stimulation of the tongue by capsaicin (STC). The secondary objectives were to compare opiorphin release after STC in 3 groups of subjects [healthy (CTRL), Burning Mouth Syndrome (BMS), painful Temporomandibular disorders (TMDp)] and pain evoked by STC in these 3 groups. MATERIALS AND METHODS Salivary opiorphin was assessed with high-performance liquid chromatography at 3 different time points (baseline, after 5 min and 20 min of STC). Pain was self-reported on a (0-10) numeric rating scale. RESULTS Three groups (N = 16) of adults were recruited at the Clinical Hospital Centre and School of Dental Medicine in Zagreb. Opiorphin levels were higher (1) in TMDp compared to CTRL in 1st (2.23 ± 1.72 pg/ul vs. 0.67 ± 0.44 pg/ul, p = 0.002) and 3rd sampling (2.44 ± 2.01 pg/ul vs. 0.74 ± 0.52 pg/ul, p = 0.020) and (2) within BMS group at 3rd sampling vs. baseline (p < 0.025). Pain scores were higher in BMS compared to TMDp (p < 0.025) and CTRL (p < 0.025). CONCLUSION This study evidenced (1) a differential basal amount of opiorphin in two pain conditions and control subjects (2) a differential kinetic of release of opiorphin after STC in CTRL, BMS and TMDp (3) a differential pain perception after STC in BMS and TMDp vs. CTRL, which can provide a readout for animal models. CLINICAL RELEVANCE The specific regulation of opiorphin release in patients with orofacial painful conditions provides valuable insights for clinicians and researchers in physiology and pathology and encourages further research in this area. TRIAL REGISTRATION ClinicalTrials.gov NCT04694274. Registered on 01/05/2021.
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Affiliation(s)
- Iva Z Alajbeg
- Department of Removable Prosthodontics, University of Zagreb School of Dental Medicine, University of Zagreb, Zagreb, 10000, Croatia.
- Department of Dental Medicine, Clinical Hospital Centre Zagreb, Zagreb, 10000, Croatia.
| | - Ema Vrbanovic
- Department of Removable Prosthodontics, University of Zagreb School of Dental Medicine, University of Zagreb, Zagreb, 10000, Croatia
| | - Ivan Alajbeg
- Department of Oral Medicine, University of Zagreb School of Dental Medicine, University of Zagreb, Zagreb, 10000, Croatia
- Department of Dental Medicine, Clinical Hospital Centre Zagreb, Zagreb, 10000, Croatia
| | - Ivan Orabovic
- Department of Removable Prosthodontics, University of Zagreb School of Dental Medicine, University of Zagreb, Zagreb, 10000, Croatia
| | - Klara Naka
- Department of Removable Prosthodontics, University of Zagreb School of Dental Medicine, University of Zagreb, Zagreb, 10000, Croatia
| | - Antonija Mrla
- Department of Removable Prosthodontics, University of Zagreb School of Dental Medicine, University of Zagreb, Zagreb, 10000, Croatia
| | - Yves Boucher
- Laboratoire de Neurobiologie Orofaciale, UFR Odontologie, Université Paris Cité, Paris, 75006, France
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Millán-Santiago J, Lucena R, Cárdenas S. Bioinspired composite packed in blunt needles, integrated microextraction and determination of oxycodone and naloxone in saliva by substrate spray mass spectrometry. Anal Chim Acta 2024; 1297:342376. [PMID: 38438230 DOI: 10.1016/j.aca.2024.342376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/02/2024] [Accepted: 02/13/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND Opioids are effective painkillers used for medical purposes. Their prolonged ingestion can provoke some side effects (including overdose or constipation) that are minimized by using opioid antagonists (e.g., naloxone). The rapid determination of opioids and their antagonists in biosamples is essential for an effective medical treatment. The direct combination of sample preparation and mass spectrometry (MS) fits well in this scenario. It can speed up the analysis achieving a good selectivity, which relies on the sample preparation and MS, and sensitivity levels. RESULTS This article presents a novel substrate-spray mass spectrometry interface based on a polydopamine-cotton (PDA-Cel) composite hosted inside the inner diameter of a 14-gauge blunt needle to determine oxycodone and naloxone in saliva samples. The needle is used as a microextraction device and a substrate for mass spectrometric analysis. The lack of sharpness of the 14-gauge (14G) blunt needles challenges the formation of the electrospray (ESI), and a commercial 10 μL pipette tip is proposed as a simple solution to this shortcoming. Under the optimum parameters, the proposed method was validated, obtaining limits of detection lower than 0.6 μg L-1, linear range up to 200 μg L-1, and linearity better than 0.9915. Relative standard deviation (RSD) and relative recoveries (RR) were studied at three different concentration levels (2, 40, and 200 μg L-1). RSD values were better than 20.7 %, and RR ranged from 90 to 114 %. Finally, a positive sample from a patient under medical treatment was analyzed. SIGNIFICANCE AND NOVELTY 14G blunt needles have been demonstrated as effective extraction devices due to their low price (<0.15 € per extraction unit), their better safety (avoiding finger pricking), and their higher hosting capacity (up to 8 mg of sorbent). The conductivity of stainless steel permits their use as electrospray emitters, making their direct combination to MS easier. The large variety of fibrous sorbents makes this approach versatile enough to be adapted to other analytical problems.
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Affiliation(s)
- Jaime Millán-Santiago
- Affordable and Sustainable Sample Preparation (AS(2)P) Research Group, Analytical Chemistry Department, Instituto Químico para la Energía y el Medioambiente (IQUEMA), University of Córdoba, Campus of Rabanales, Marie Curie Building, E-14071, Córdoba, Spain
| | - Rafael Lucena
- Affordable and Sustainable Sample Preparation (AS(2)P) Research Group, Analytical Chemistry Department, Instituto Químico para la Energía y el Medioambiente (IQUEMA), University of Córdoba, Campus of Rabanales, Marie Curie Building, E-14071, Córdoba, Spain
| | - Soledad Cárdenas
- Affordable and Sustainable Sample Preparation (AS(2)P) Research Group, Analytical Chemistry Department, Instituto Químico para la Energía y el Medioambiente (IQUEMA), University of Córdoba, Campus of Rabanales, Marie Curie Building, E-14071, Córdoba, Spain.
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Choudhury K, Khadanga A, Purty RS. Computational inhibition of S100A8 (calgranulin A) as a potential non-invasive biomarker for rheumatoid arthritis. In Silico Pharmacol 2024; 12:25. [PMID: 38590725 PMCID: PMC10998824 DOI: 10.1007/s40203-024-00204-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 03/13/2024] [Indexed: 04/10/2024] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic joint pain and inflammation, loss of mobility, which affects the quality of life. The etiology of RA is unknown, and there is no isolated cause for the development of this illness. Synovial inflammation, autoantibody generation and bone degradation leading to deformity are classic characteristics of RA. The search for a non-invasive biomarker is crucial for helping patients receive standard therapies leading to faster treatments, as diagnosis depends on invasive biopsies. Therefore, in the present investigation, using transcriptomics and proteomic approaches, potential genes involved in crucial networks in RA were identified. Gene expression datasets of two tissue types i.e. whole blood and synovial tissue were retrieved from the GEO database and used for transcriptomic analyses. Using SWATH-MS analysis, differentially expressed proteins were identified from collected saliva of RA patients. Through bioinformatics analysis, S100A8, also known as Calprotectin (a complex of S100A8/A9) or Calgranulin A, was found to be common among all tissue types. S100A8 was then further quantified in saliva of healthy volunteers and RA patients, where it was found that the protein's level in healthy controls was lowered when compared to RA patients. Through in-silico characterization, potential plant-based inhibitors of S100A8 were also identified, to reduce its pro-inflammatory effects. Thus, it may be important in the pathophysiology of RA and, in the future, might help guide targeted treatment. as well as act as a non-invasive diagnostic biomarker platform.
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Affiliation(s)
- Khushboo Choudhury
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sector 16C, Dwarka, New Delhi, 110078 India
| | - Abhipsha Khadanga
- Indian Institute of Technology, Near NH-65, Sangareddy, Kandi, Telangana 502285 India
| | - Ram Singh Purty
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sector 16C, Dwarka, New Delhi, 110078 India
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Sakata KI, Hashimoto A, Kambe T, Sato J, Ohga N, Yamazaki Y, Koyachi M, Tatsuki I, Okada M, Taro O, Hikasa H, Kitagawa Y. Expression analysis of zinc-metabolizing enzymes in the saliva as a new method of evaluating zinc content in the body: two case reports and a review of the literature. J Med Case Rep 2024; 18:198. [PMID: 38570871 PMCID: PMC10993550 DOI: 10.1186/s13256-024-04463-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 02/16/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND The activity level of alkaline phosphatase, a zinc-requiring enzyme in the serum, is used to indicate zinc nutritional status; however, it does not correlate with serum zinc levels or subjective symptoms of taste disorder in many cases. Hence, this study focused on the total activity of alkaline phosphatase, a zinc-requiring enzyme. The total alkaline phosphatasa activity level in the saliva was measured before and after zinc supplementation, and the results were compared with serum zinc levels. CASE PRESENTATION This study included patients with hypozincemia, specifically a patient with zinc-deficient taste disorder (patient 1: a 69-year-old Japanese woman) and a patient with glossodynia with zinc deficiency (patient 2: an 82-year-old Japanese woman). Saliva samples were collected, and blood tests were performed before and after zinc supplementation. Subjective symptoms and serum zinc levels were simultaneously evaluated. Zinc supplementation was performed using zinc acetate hydrate or Polaprezinc. CONCLUSIONS Total alkaline phosphatase activity levels were found to be associated with serum zinc levels and subjective symptoms. A further study with a higher number of patients is necessary to confirm whether total alkaline phosphatase activity levels more accurately reflect the amounts of zinc in the body than serum zinc levels.
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Affiliation(s)
- Ken-Ichiro Sakata
- Department of Oral Diagnosis and Medicine, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan.
| | - Ayako Hashimoto
- Department of Food and Nutrition, Faculty of Home Economics, Kyoto Women's University, Kyoto, Japan
| | - Taiho Kambe
- Department of Applied Molecular Biology, Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Jun Sato
- Department of Oral Diagnosis and Medicine, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Noritaka Ohga
- Department of Oral Diagnosis and Medicine, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Yutaka Yamazaki
- Department of Gerodontology, Division of Oral Health Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Masahide Koyachi
- Department of Oral Pathobiological Science and Surgery, Tokyo Dental College, Tokyo, Japan
| | - Itagaki Tatsuki
- Department of Oral Diagnosis and Medicine, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Mai Okada
- Department of Oral Diagnosis and Medicine, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Okura Taro
- Department of Oral Diagnosis and Medicine, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroshi Hikasa
- Department of Oral Diagnosis and Medicine, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshimasa Kitagawa
- Department of Oral Diagnosis and Medicine, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
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Zhang M, Zhao Y, Umar A, Zhang H, Yang L, Huang J, Long Y, Yu Z. Comparative analysis of microbial composition and functional characteristics in dental plaque and saliva of oral cancer patients. BMC Oral Health 2024; 24:411. [PMID: 38575895 PMCID: PMC10993480 DOI: 10.1186/s12903-024-04181-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/25/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND The oral cavity is home to various ecological niches, each with its own unique microbial composition. Understanding the microbial communities and gene composition in different ecological niches within the oral cavity of oral cancer (OC) patients is crucial for determining how these microbial populations contribute to disease progression. METHODS In this study, saliva and dental plaque samples were collected from patients with OC. Metagenomic sequencing was employed to analyze the microbial community classification and functional composition of the different sample groups. RESULTS The results of the study revealed significant differences in both the function and classification of microbial communities between saliva and dental plaque samples. The diversity of microbial species in saliva was found to be higher compared to that in plaque samples. Notably, Actinobacteria were enriched in the dental plaque of OC patients. Furthermore, the study identified several inter-group differential marker species, including Prevotella intermedia, Haemophilus parahaemolyticus, Actinomyces radius, Corynebacterium matruchitii, and Veillonella atypica. Additionally, 1,353 differential genes were annotated into 23 functional pathways. Interestingly, a significant correlation was observed between differentially labeled species and Herpes simplex virus 1 (HSV-1) infection, which may be related to the occurrence and development of cancer. CONCLUSIONS Significant differences in the microbial and genetic composition of saliva and dental plaque samples were observed in OC patients. Furthermore, pathogenic bacteria associated with oral diseases were predominantly enriched in saliva. The identification of inter-group differential biomarkers and pathways provide insights into the relationship between oral microbiota and the occurrence and development of OC.
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Affiliation(s)
- Man Zhang
- Translational Medicine Center, Department of Head and Neck Surgery, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Yiming Zhao
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Abdulrahim Umar
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Hailin Zhang
- Translational Medicine Center, Department of Head and Neck Surgery, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Lirong Yang
- Translational Medicine Center, Department of Head and Neck Surgery, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jing Huang
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Ying Long
- Translational Medicine Center, Department of Head and Neck Surgery, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.
| | - Zheng Yu
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China.
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Chen AMC, Ekambaram M, Li KC, Cooper PR, Mei ML. A scoping review of the influence of clinical contaminants on bond strength in direct adhesive restorative procedures. J Dent 2024; 145:104985. [PMID: 38574846 DOI: 10.1016/j.jdent.2024.104985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/30/2024] [Accepted: 04/02/2024] [Indexed: 04/06/2024] Open
Abstract
OBJECTIVE Clinical contamination during direct adhesive restorative procedures can affect various adhesive interfaces differently and contribute to bulk failure of the restorations. This review aims to summarise the current knowledge on the influence of a variety of clinical contaminants on the bond strength at various adhesive interfaces during adhesive restorative procedures and identify gaps in the literature for future research. DATA AND SOURCES An electronic database search was performed in PubMed and EMBASE to identify articles that investigated the influence of contaminants on direct restorative bonding procedures. A data-charting form was developed by two researchers to capture the key characteristics of each eligible study. STUDY SELECTION The initial search yielded 1,428 articles. Fifty-seven articles published between 1 Jan 2007 and 25 Oct 2023 were included in the final review. Thirty-three of the articles examined the influence of saliva contamination, twelve articles examined the influence of blood contamination, and twenty-five articles examined the influence of other contaminants. CONCLUSION Saliva contamination exerted less influence on the decrease in bond strength when self-etch systems were used, compared to when etch-and-rinse systems were used. Blood contamination adversely affected the bond strength at the interface between resin composite and dentine, and resin composite and resin-modified glass ionomer cement. Treating contaminated surfaces with water spray for 10-30 s followed by air drying could be effective in recovering bond strength following saliva and blood contamination. CLINICAL SIGNIFICANCE This scoping review provides a valuable overview of the range of potential clinical contaminants that can influence the bond strength between different interfaces in direct adhesive restorative procedures. Additionally, it identifies potential decontamination protocols that can be followed to restore and enhance bond strength.
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Affiliation(s)
- Amy Man-Chun Chen
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, 9054, New Zealand
| | - Manikandan Ekambaram
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, 9054, New Zealand
| | - Kai Chun Li
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, 9054, New Zealand
| | - Paul R Cooper
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, 9054, New Zealand
| | - May Lei Mei
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, 9054, New Zealand.
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Boussamet L, Montassier E, Mathé C, Garcia A, Morille J, Shah S, Dugast E, Wiertlewski S, Gourdel M, Bang C, Stürner KH, Masson D, Nicot AB, Vince N, Laplaud DA, Feinstein DL, Berthelot L. Investigating the metabolite signature of an altered oral microbiota as a discriminant factor for multiple sclerosis: a pilot study. Sci Rep 2024; 14:7786. [PMID: 38565581 PMCID: PMC10987558 DOI: 10.1038/s41598-024-57949-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 03/23/2024] [Indexed: 04/04/2024] Open
Abstract
In multiple sclerosis (MS), alterations of the gut microbiota lead to inflammation. However, the role of other microbiomes in the body in MS has not been fully elucidated. In a pilot case-controlled study, we carried out simultaneous characterization of faecal and oral microbiota and conducted an in-depth analysis of bacterial alterations associated with MS. Using 16S rRNA sequencing and metabolic inference tools, we compared the oral/faecal microbiota and bacterial metabolism pathways in French MS patients (n = 14) and healthy volunteers (HV, n = 21). A classification model based on metabolite flux balance was established and validated in an independent German cohort (MS n = 12, HV n = 38). Our analysis revealed decreases in diversity indices and oral/faecal compartmentalization, the depletion of commensal bacteria (Aggregatibacter and Streptococcus in saliva and Coprobacter and Roseburia in faeces) and enrichment of inflammation-associated bacteria in MS patients (Leptotrichia and Fusobacterium in saliva and Enterobacteriaceae and Actinomyces in faeces). Several microbial pathways were also altered (the polyamine pathway and remodelling of bacterial surface antigens and energetic metabolism) while flux balance analysis revealed associated alterations in metabolite production in MS (nitrogen and nucleoside). Based on this analysis, we identified a specific oral metabolite signature in MS patients, that could discriminate MS patients from HV and rheumatoid arthritis patients. This signature allowed us to create and validate a discrimination model on an independent cohort, which reached a specificity of 92%. Overall, the oral and faecal microbiomes were altered in MS patients. This pilot study highlights the need to study the oral microbiota and oral health implications in patients with autoimmune diseases on a larger scale and suggests that knowledge of the salivary microbiome could help guide the identification of new pathogenic mechanisms associated with the microbiota in MS patients.
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Affiliation(s)
- Léo Boussamet
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
| | - Emmanuel Montassier
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
- Emergency Department, Nantes Hospital, Nantes, France
| | - Camille Mathé
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
| | - Alexandra Garcia
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
| | - Jérémy Morille
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
| | - Sita Shah
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
| | - Emilie Dugast
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
| | - Sandrine Wiertlewski
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
- Neurology Department, Nantes Hospital, Nantes, France
| | | | - Corinna Bang
- Institute of Clinical Molecular Biology, Christian Albrechts University of Kiel, Kiel, Germany
| | - Klarissa H Stürner
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Damien Masson
- Clinical Biochemistry Department, Nantes Hospital, Nantes, France
| | - Arnaud B Nicot
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
| | - Nicolas Vince
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
| | - David-Axel Laplaud
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France
- Neurology Department, Nantes Hospital, Nantes, France
| | - Douglas L Feinstein
- Jesse Brown VA Medical Center, 835 South Wolcott Ave, MC513, E720, Chicago, IL, 60612, USA.
- Department of Anesthesiology, University of Illinois, Chicago, IL, USA.
| | - Laureline Berthelot
- Nantes Université, Inserm, CHU de Nantes, CR2TI (Center for Research On Transplantation and Translational Immunology), 30 Bd Jean Monnet, 44000, Nantes, France.
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Taskaldiran ES, Tuter G, Yucel AA, Yaman M. Effects of smoking on the salivary and GCF levels of IL-17 and IL-35 in periodontitis. Odontology 2024; 112:616-623. [PMID: 37566245 DOI: 10.1007/s10266-023-00843-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/25/2023] [Indexed: 08/12/2023]
Abstract
Periodontitis progression is associated with a host response in which anti-inflammatory and pro-inflammatory cytokine networks play a key role. Smoking is involved in the production of various mediators. The study aims to evaluate the levels of IL-17 and IL-35 in saliva and gingival crevicular fluid (GCF), to investigate the effects of smoking on these cytokines in smoker and non-smoker periodontitis patients. 19 smokers with periodontitis, 20 non-smokers with periodontitis, and 18 periodontally healthy subjects were included in the study. Periodontal clinical indexes were recorded and the levels of IL-17 and IL-35 in saliva and GCF were analyzed. No significant difference was detected among the groups in terms of salivary IL-17 and IL-35 levels. GCF IL-17 and IL-35 concentration levels in the non-smoker periodontitis group were significantly lower than the others (p < 0.05). Total levels of GCF IL-17 were significantly higher in both periodontitis groups than the control group; and total levels of GCF IL-35 were significantly higher in non-smoker periodontitis group than the others (p < 0.05). A positive correlation was detected between the salivary IL-17 and IL-35 levels (r = 0.884), GCF IL-17 and IL-35 concentrations (r = 0.854), and total GCF IL-17 and IL-35 (r = 0.973) levels (p < 0.01). The present study revealed a positive correlation between the IL-35 and IL-17 levels both in saliva and GCF. IL-17 and IL-35 can be considered as one of the cytokines that play a role in periodontal health and periodontitis; and smoking may be among the factors that affect the levels of these cytokines in GCF and saliva.
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Affiliation(s)
- Ezgi Sila Taskaldiran
- Department of Periodontology, Faculty of Dentistry, Istanbul Aydin University, Istanbul, Turkey
- Department of Periodontology, Faculty of Dentistry, Gazi University, Ankara, Turkey
| | - Gulay Tuter
- Department of Periodontology, Faculty of Dentistry, Gazi University, Ankara, Turkey.
| | - Aysegul Atak Yucel
- Department of Immunology, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Melek Yaman
- Department of Immunology, Faculty of Medicine, Gazi University, Ankara, Turkey
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Thieux M, Guyon A, Seugnet L, Franco P. Salivary α-amylase as a marker of sleep disorders: A theoretical review. Sleep Med Rev 2024; 74:101894. [PMID: 38157687 DOI: 10.1016/j.smrv.2023.101894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 12/04/2023] [Accepted: 12/14/2023] [Indexed: 01/03/2024]
Abstract
Sleep disorders are commonplace in our modern societies. Specialized hospital departments are generally overloaded, and sleep assessment is an expensive process in terms of equipment, human resources, and time. Biomarkers would usefully complement current measures in the screening and follow-up of sleep disorders and their daytime repercussions. Among salivary markers, a growing body of literature suggests that salivary α-amylase (sAA) may be a cross-species marker of sleep debt. However, there is no consensus as to the direction of variation in sAA with sleep disorders. Herein, after describing the mechanisms of sAA secretion and its relationship with stress, studies assessing the relationship between sAA and sleep parameters are reviewed. Finally, the influence of confounding factors is discussed, along with methodological considerations, to better understand the fluctuations in sAA and facilitate future studies in the field.
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Affiliation(s)
- Marine Thieux
- Centre de Recherche en Neurosciences de Lyon (CRNL), INSERM, Lyon, France.
| | - Aurore Guyon
- Pediatric Sleep Unit and CRMR Narcolepsie-Hypersomnies Rares, Department of Pediatric Clinical Epileptology, Sleep Disorders and Functional Neurology, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Lyon, France
| | - Laurent Seugnet
- Centre de Recherche en Neurosciences de Lyon (CRNL), INSERM, Lyon, France
| | - Patricia Franco
- Centre de Recherche en Neurosciences de Lyon (CRNL), INSERM, Lyon, France; Pediatric Sleep Unit and CRMR Narcolepsie-Hypersomnies Rares, Department of Pediatric Clinical Epileptology, Sleep Disorders and Functional Neurology, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Lyon, France
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Barros O, D'Agostino VG, Lara Santos L, Vitorino R, Ferreira R. Shaping the future of oral cancer diagnosis: advances in salivary proteomics. Expert Rev Proteomics 2024; 21:149-168. [PMID: 38626289 DOI: 10.1080/14789450.2024.2343585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 02/19/2024] [Indexed: 04/18/2024]
Abstract
INTRODUCTION Saliva has gained increasing attention in the quest for disease biomarkers. Because it is a biological fluid that can be collected is an easy, painless, and safe way, it has been increasingly studied for the identification of oral cancer biomarkers. This is particularly important because oral cancer is often diagnosed at late stages with a poor prognosis. AREAS COVERED The review addresses the evolution of the experimental approaches used in salivary proteomics studies of oral cancer over the years and outlines advantages and pitfalls related to each one. In addition, examines the current landscape of oral cancer biomarker discovery and translation focusing on salivary proteomic studies. This discussion is based on an extensive literature search (PubMed, Scopus and Google Scholar). EXPERT OPINION The introduction of mass spectrometry has revolutionized the study of salivary proteomics. In the future, the focus will be on refining existing methods and introducing powerful experimental techniques such as mass spectrometry with selected reaction monitoring, which, despite their effectiveness, are still underutilized due to their high cost. In addition, conducting studies with larger cohorts and establishing standardized protocols for salivary proteomics are key challenges that need to be addressed in the coming years.
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Affiliation(s)
- Oriana Barros
- Department of Medical Sciences, Institute of Biomedicine iBiMED, University of Aveiro, Aveiro, Portugal
- Experimental Pathology and Therapeutics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network) and Surgical Department of Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
| | - Vito G D'Agostino
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Lucio Lara Santos
- Experimental Pathology and Therapeutics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network) and Surgical Department of Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
| | - Rui Vitorino
- Department of Medical Sciences, Institute of Biomedicine iBiMED, University of Aveiro, Aveiro, Portugal
- Experimental Pathology and Therapeutics Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network) and Surgical Department of Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
- UnIC, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Rita Ferreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
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Ahmed AA, Sborchia M, Bye H, Roman-Escorza M, Amar A, Henley-Smith R, Odell E, McGurk M, Simpson M, Ng T, Sawyer EJ, Mathew CG. Mutation detection in saliva from oral cancer patients. Oral Oncol 2024; 151:106717. [PMID: 38412584 DOI: 10.1016/j.oraloncology.2024.106717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/11/2024] [Accepted: 01/31/2024] [Indexed: 02/29/2024]
Abstract
OBJECTIVES The incidence of head and neck squamous cell carcinoma (HNSCC) continues to increase and although advances have been made in treatment, it still has a poor overall survival with local relapse being common. Conventional imaging methods are not efficient at detecting recurrence at an early stage when still potentially curable. The aim of this study was to test the feasibility of using saliva to detect the presence of oral squamous cell carcinoma (OSCC) and to provide additional evidence for the potential of this approach. MATERIALS AND METHODS Fresh tumor, whole blood and saliva were collected from patients with OSCC before treatment. Whole exome sequencing (WES) or gene panel sequencing of tumor DNA was performed to identify somatic mutations in tumors and to select genes for performing gene panel sequencing on saliva samples. RESULTS The most commonly mutated genes identified in primary tumors by DNA sequencing were TP53 and FAT1. Gene panel sequencing of paired saliva samples detected tumor derived mutations in 9 of 11 (82%) patients. The mean variant allele frequency for the mutations detected in saliva was 0.025 (range 0.004 - 0.061). CONCLUSION Somatic tumor mutations can be detected in saliva with high frequency in OSCC irrespective of site or stage of disease using a limited panel of genes. This work provides additional evidence for the suitability of using saliva as liquid biopsy in OSCC and has the potential to improve early detection of recurrence in OSCC. Trials are currently underway comparing this approach to standard imaging techniques.
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Affiliation(s)
- Ahmed A Ahmed
- School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, Guy's Cancer Centre, King's College London, London SE1 9RT, United Kingdom.
| | - Mateja Sborchia
- School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, Guy's Cancer Centre, King's College London, London SE1 9RT, United Kingdom
| | - Hannah Bye
- Department of Medical and Molecular Genetics, Faculty of Life Sciences and Medicine, King's College London, London SE1 9RT, United Kingdom
| | - Maria Roman-Escorza
- School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, Guy's Cancer Centre, King's College London, London SE1 9RT, United Kingdom
| | - Ariella Amar
- Department of Medical and Molecular Genetics, Faculty of Life Sciences and Medicine, King's College London, London SE1 9RT, United Kingdom
| | - Rhonda Henley-Smith
- KHP Head & Neck Cancer Biobank, Guy's & St Thomas' NHS Foundation Trust, Guy's Hospital, London SE1 9RT, United Kingdom
| | - Edward Odell
- King's College London and Head and Neck Pathology Guy's Hospital, London SE1 9RT, United Kingdom
| | - Mark McGurk
- Department of Head and Neck Surgery, University College London Hospital, London NW1 2BU, United Kingdom
| | - Michael Simpson
- Department of Medical and Molecular Genetics, Faculty of Life Sciences and Medicine, King's College London, London SE1 9RT, United Kingdom
| | - Tony Ng
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer and Pharmaceutical Sciences, King's College London, Guy's Medical School Campus, London SE1 1UL, United Kingdom
| | - Elinor J Sawyer
- School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, Guy's Cancer Centre, King's College London, London SE1 9RT, United Kingdom
| | - Christopher G Mathew
- Department of Medical and Molecular Genetics, Faculty of Life Sciences and Medicine, King's College London, London SE1 9RT, United Kingdom; Sydney Brenner Institute for Molecular Bioscience, University of the Witwatersrand, Johannesburg, South Africa
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Jin SH, Lee EM, Park JB, Ko Y. Decreased GCF DEL-1 and increased GCF neutrophils with increasing probing pocket depth. J Periodontal Implant Sci 2024; 54:85-95. [PMID: 37681356 PMCID: PMC11065539 DOI: 10.5051/jpis.2301120056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 05/30/2023] [Accepted: 06/04/2023] [Indexed: 09/09/2023] Open
Abstract
PURPOSE Developmental endothelial locus-1 (DEL-1) plays a role in regulating neutrophil migration within the periodontium. The objective of this study was to evaluate the levels of DEL-1 in saliva and gingival crevicular fluid (GCF), as well as the number of neutrophils in patients with periodontitis. METHODS Forty systemically healthy, non-smoking periodontitis patients participated in this study. Clinical periodontal parameters, including the plaque index, probing pocket depth (PPD), clinical attachment level, bleeding on probing, modified sulcular bleeding index, and marginal bone level, were measured. Levels of DEL-1, interleukin (IL)-1β, IL-6, and IL-8 in unstimulated saliva samples, as well as DEL-1 in the GCF of 3 teeth from each participant, were assessed. Neutrophil counts in oral rinse and GCF samples were recorded. Spearman correlation coefficients were used to examine the correlation between protein levels, clinical parameters, and neutrophil quantities. Participants were divided into 2 age groups (those under 50 years and those 50 years or older) in order to investigate potential age-related differences. RESULTS DEL-1 levels in the GCF showed a negative relationship with PPD (sum). Neutrophils in oral rinse samples were positively correlated with PPD, IL-8, and IL-1β levels. Neutrophils in GCF exhibited a positive correlation with PPD (sum). Salivary DEL-1 levels showed correlations with IL-8 and IL-1β, but not with the clinical parameters of periodontitis. CONCLUSIONS The negative relationship observed between PPD and GCF DEL-1 levels is consistent with the proposed protective role of DEL-1.
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Affiliation(s)
- Seong-Ho Jin
- Department of Dentistry, Graduate School, The Catholic University of Korea, Seoul, Korea
| | - Eun-Mi Lee
- Department of Periodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jun-Beom Park
- Department of Dentistry, Graduate School, The Catholic University of Korea, Seoul, Korea
- Department of Periodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Youngkyung Ko
- Department of Dentistry, Graduate School, The Catholic University of Korea, Seoul, Korea
- Department of Periodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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Nobrega C, Nunes GP, de Paiva Buischi Y, Kajimoto NDC, Delbem ACB. In vitro assessment of dental erosion caused by clear aligners. J Mech Behav Biomed Mater 2024; 152:106390. [PMID: 38277909 DOI: 10.1016/j.jmbbm.2024.106390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/05/2024] [Accepted: 01/07/2024] [Indexed: 01/28/2024]
Abstract
The primary objective of this in vitro study was to investigate the erosive potential of enamel under the use of clear aligners (CA), by simulating in vivo conditions experienced by patients who do not remove their CA during the consumption of acidic beverages. In addition, the difference in erosion protection conferred by artificial and human saliva was also evaluated. Sound-extracted human premolars (n = 20) had half of their surfaces protected with acid-resistant nail polish and were randomly distributed into two experimental groups (n = 10): teeth immersed in human saliva or artificial saliva. All teeth had half of their lingual surfaces enclosed by a CA device. The erosive challenges consisted of individual immersion of each sample in citrus acid three times a day, intermediated by immersion in human saliva or artificial saliva for 2 h, during ten days of the erosive protocol. The enamel mineral content was analyzed by high-resolution microtomography. The differential mineral concentration profiles were obtained by subtracting the profile of the mineral concentration of the exposed area and enamel under the CA area from the respective sound area (control). In addition, enamel wear and enamel volume loss were measured. Scanning electron microscopy (SEM) was also performed to analyze the enamel surface. Data were analyzed by two-way ANOVA, followed by the Student-Newman-Keuls test. The enamel wear was higher in teeth immersed in artificial saliva, when compared to human saliva (p < 0.001). The volume loss of the exposed enamel area was lower for tooth immersed in human saliva than in artificial saliva (p < 0.001), during the acid challenge protocol. The use of CA during acid challenges promoted wear and mineral loss of dental enamel, being these changes more pronounced on the enamel surface under the CA. These results open a new path for the development of further studies adopting clinical protocols that promote more accurate responses in the clinical practice during orthodontic treatment.
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Affiliation(s)
- Celestino Nobrega
- Department of Orthodontics, Case Western Reserve University, Cleveland, OH, United States.
| | - Gabriel Pereira Nunes
- Department of Preventive and Restorative Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
| | - Yvonne de Paiva Buischi
- Department of Periodontics, The University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Natália de Campos Kajimoto
- Department of Periodontics, The University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
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Zhou C, Cai Z, Jin B, Lin H, Xu L, Jin Z. Saliva-based detection of SARS-CoV-2: a bibliometric analysis of global research. Mol Cell Biochem 2024; 479:761-777. [PMID: 37178376 PMCID: PMC10182745 DOI: 10.1007/s11010-023-04760-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023]
Abstract
Saliva has emerged as a promising noninvasive biofluid for the diagnosis of oral and systemic diseases, including viral infections. During the coronavirus disease 2019 (COVID-19) pandemic, a growing number of studies focused on saliva-based detection of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Taking advantage of the WoS core collection (WoSCC) and CiteSpace, we retrieved 1021 articles related to saliva-based detection of SARS-CoV-2 and conducted a comprehensive bibliometric analysis. We analyzed countries, institutions, authors, cited authors, and cited journals to summarize their contribution and influence and analyzed keywords to explore research hotspots and trends. From 2020 to 2021, research focused on viral transmission via saliva and verification of saliva as a reliable specimen, whereas from 2021 to the present, the focus of research has switched to saliva-based biosensors for SARS-CoV-2 detection. By far, saliva has been verified as a reliable specimen for SARS-CoV-2 detection, although a standardized procedure for saliva sampling and processing is needed. Studies on saliva-based detection of SARS-CoV-2 will promote the development of saliva-based diagnostics and biosensors for viral detection. Collectively, our findings could provide valuable information to help scientists perceive the basic knowledge landscapes on saliva-based detection of SARS-CoV-2, the past and current research hotspots, and future opportunities.
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Affiliation(s)
- Chun Zhou
- Jinhua People's Hospital Joint Center for Biomedical Research, Zhejiang Normal University, Jinhua, 321000, Zhejiang, China
- Department of Science and Education, the Affiliated Jinhua Hospital of Wenzhou Medical University, Jinhua, 321000, Zhejiang, China
| | - Zhaopin Cai
- College of Life Sciences, Zhejiang Normal University, 688 Yingbin Road, Jinhua, 321000, Zhejiang, China
| | - Boxing Jin
- College of Life Sciences, Zhejiang Normal University, 688 Yingbin Road, Jinhua, 321000, Zhejiang, China
| | - Huisong Lin
- Zhejiang Institute of Medical Device Testing, Hangzhou, Zhejiang, China
| | - Lingling Xu
- College of Life Sciences, Zhejiang Normal University, 688 Yingbin Road, Jinhua, 321000, Zhejiang, China
| | - Zhigang Jin
- Jinhua People's Hospital Joint Center for Biomedical Research, Zhejiang Normal University, Jinhua, 321000, Zhejiang, China.
- College of Life Sciences, Zhejiang Normal University, 688 Yingbin Road, Jinhua, 321000, Zhejiang, China.
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Grutle LA, Holm HV, Kopperud HBM, Uhlig S. Validation of a human saliva model for the determination of leachable monomers and other chemicals from dental materials. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1236:124073. [PMID: 38452631 DOI: 10.1016/j.jchromb.2024.124073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/09/2024]
Abstract
This study aimed to prove the validity of a mixture of chemicals, including salts, small organic molecules, mucin, and α-amylase, as saliva surrogate ("artificial saliva") for assessing leakage of methacrylate monomers and other constituents from dental materials. To achieve this, we developed and validated a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantification of 2-hydroxyethyl methacrylate (HEMA), triethylene glycol dimethacrylate (TEGDMA), diurethane dimethacrylate (UDMA), bisphenol A glycerolate dimethacrylate (BisGMA), diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (TPO), bisphenol A (BPA), and five homologues of ethoxylated bisphenol A dimethacrylate (BisEMA EO2-6) in unstimulated and artificial saliva, and compared their concentrations in the two saliva media following either spiking with a mixture of the compounds or incubation of test specimens of printed biomaterials. Test specimens were immersed in unstimulated/artificial saliva, incubated at 37 °C for 24 h, and saliva aliquots were extracted with methanol and subsequently analyzed by LC-MS/MS. The method was validated with regard to matrix effects, linearity, selectivity, lower limits of quantification (LLOQ), precision, bias and combined measurement uncertainty (u'). The performance characteristics of the method were comparable for unstimulated and artificial saliva samples. The combined u' for individual chemicals at a concentration of 10 × LLOQ were within the range of 5.3-14 % for unstimulated saliva and 6.9-16 % for artificial saliva, except for the BisEMA homologues. Combined u' for the latter were 27-74 % in unstimulated saliva, and 27-79 % in artificial saliva. There was no detectable release of BPA from the test specimens, and the TPO concentrations were mainly below the LLOQ. TEGDMA and UDMA were detected in the highest quantities, and at comparable concentrations in the unstimulated and artificial saliva. For all BisEMA homologues, the release was higher in unstimulated saliva than in artificial saliva. The study showed that the artificial saliva model can be a suitable replacement for native saliva, but might underestimate leakage of more lipophilic methacrylates.
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Affiliation(s)
- Lene A Grutle
- Nordic Institute of Dental Materials (NIOM), Sognsveien 70A, 0855 Oslo, Norway
| | - Heidi V Holm
- Nordic Institute of Dental Materials (NIOM), Sognsveien 70A, 0855 Oslo, Norway
| | - Hilde B M Kopperud
- Nordic Institute of Dental Materials (NIOM), Sognsveien 70A, 0855 Oslo, Norway
| | - Silvio Uhlig
- Nordic Institute of Dental Materials (NIOM), Sognsveien 70A, 0855 Oslo, Norway.
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Zhang Y, Ye S, Zhang Y, Sun H, Zhao X, Shen X, Wu L. Potential salivary and serum biomarkers for burning mouth syndrome and their relationship with anxiety/depression. J Dent Sci 2024; 19:1052-1060. [PMID: 38618099 PMCID: PMC11010615 DOI: 10.1016/j.jds.2023.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/06/2023] [Indexed: 04/16/2024] Open
Abstract
Background/purpose The pathophysiology of burning mouth syndrome (BMS), although considered a multifactorial etiology including psychological factors, is still not well understood. Hence, this study aimed to investigate the potential usage of salivary and serum biomarkers, including brain-derived neurotrophic factor (BDNF), interferon-gamma (IFN-γ), interleukin-1beta (IL-1β), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor-alpha (TNF-α), in diagnosing BMS and their correlations with anxiety/depression. Materials and methods 45 BMS patients and 14 healthy volunteers were enrolled. The patients were divided into BMS with anxiety/depression group and BMS without anxiety/depression group according to the scores of the Zung Self-rating Anxiety Scale (SAS) and Zung Self-rating Depression Scale (SDS). Additionally, concentrations of BDNF, IFN-γ, IL-1β, IL-6, IL-8, and TNF-α in saliva and those in serum among the patients and healthy volunteers were assessed by multiplex assay using Luminex 200TM system and Enzyme-linked immunosorbent assay (ELISA), respectively. Results Among all the serum biomarkers, only BDNF showed a statistically significant decrease in the patients than the healthy volunteers (P < 0.05). Regarding saliva biomarkers, BDNF, IL-1β, and IL-8 all exhibited a statistically significant increase in all the BMS patients versus the healthy volunteers (P < 0.05) but only BDNF was significantly different between patients with anxiety/depression and healthy individuals when considering anxiety/depression. Among BMS patients with anxiety/depression, saliva TNF-α had positive associations with other biomarkers including BDNF, IFN-γ, IL-1β, IL-6, and IL-8 (P < 0.05). Conclusion The increased concentration of saliva BDNF holds strong potential for diagnosing BMS and the elevated level of saliva TNF-α is crucial in identifying BMS patients with anxiety/depression.
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Affiliation(s)
- Ying Zhang
- Department of Oral Mucosal Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, College of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Sai Ye
- Department of Oral Mucosal Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, College of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Yangqing Zhang
- No.2 High School of East China Normal University, Shanghai, China
| | - Hong Sun
- Department of Laboratory Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoxian Zhao
- Department of Oral Mucosal Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, College of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Xuemin Shen
- Department of Oral Mucosal Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, College of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Lan Wu
- Department of Oral Mucosal Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, College of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Jiao Tong University, Shanghai, China
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Oyinloye TM, Yoon WB. Artificial saliva induced structural breakdown of surimi gels with starch under continuous compressive motions. Food Res Int 2024; 182:114156. [PMID: 38519183 DOI: 10.1016/j.foodres.2024.114156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/12/2024] [Accepted: 02/17/2024] [Indexed: 03/24/2024]
Abstract
Food texture perception is dynamic, influenced by food properties and oral processing. Using the Repeatable Dual Extrusion Cell (RDEC), the oral processing dynamics of surimi gel with different corn starch concentrations (0-15%) in the presence of 1 ml artificial saliva or water were studied. The force-time curve showed increased peak forces with higher corn starch concentrations, peaking significantly at 10%, then decreasing at 15%. Salivary amylase played a crucial role in gel sample degradation, especially in samples with 5% starch, with a work value depletion ratio of 0.535 for sample with 1 ml water (SGW-5) and 0.406 for sample with 1 ml saliva (SGS-5). SEM analysis confirmed the formation of a continuous starch network with reduced intermolecular spaces in SGS-5. The starch-iodine complex showed decreasing order with increasing starch concentration, and SGS-5 exhibited the highest degradation rate (61.61 ± 0.92%). Mathematical modeling revealed that initial decay rates (k1) in gel sample decreased with increasing starch concentration, and samples with starch and artificial saliva had higher initial degradation rates. These findings highlight the intricate interplay between saliva and starch in the surimi gel matrix under continuous compressive motions by RDEC apparatus, providing insights for formulating food products with tailored textures properties.
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Affiliation(s)
- Timilehin Martins Oyinloye
- Department of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea; Elder-Friendly Research Center, Agriculture and Life Science Research Institute, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea.
| | - Won Byong Yoon
- Department of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea; Elder-Friendly Research Center, Agriculture and Life Science Research Institute, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea.
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Díaz-Montaña EJ, Brignot H, Aparicio-Ruiz R, Thomas-Danguin T, Morales MT. Phenols and saliva effect on virgin olive oil aroma release: A chemical and sensory approach. Food Chem 2024; 437:137855. [PMID: 37944364 DOI: 10.1016/j.foodchem.2023.137855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/23/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023]
Abstract
The sensory perception of virgin olive oil is complex and produced mainly by phenols and volatiles. These compounds are affected by the interaction with other components of the oil matrix and by biological factors. The aim of the work was to study the saliva effect and/or the presence of phenols on the release of 12 volatiles, using different olive oil matrices and volatile concentrations, and applying Solid Phase Microextration-Gas Chromatography-Flame Ionization Detection, Proton Transfer Reaction-Mass Spectrometry and sensory analysis. The volatile concentrations in the headspace showed significant differences (p < 0.05) between the different matrices, being easily detected the effect exerted by phenols and biological components from 3.8 mg/Kg. The results showed that the presence of unsaturation in the volatile molecules affect their release, being lower the concentration of saturated volatiles released in presence of phenols. All the compounds were in higher concentration in the headspace of the olive oil-phenol-saliva matrix.
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Affiliation(s)
- Enrique Jacobo Díaz-Montaña
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Seville, Calle Profesor García González, nº 2, 41012 Seville, Spain.
| | - Hélène Brignot
- Centre des Sciences du Goût et de l'Alimentation, CNRS UMR6265, INRA UMR1324, Université de Bourgogne, Dijon, France
| | - Ramón Aparicio-Ruiz
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Seville, Calle Profesor García González, nº 2, 41012 Seville, Spain
| | - Thierry Thomas-Danguin
- Centre des Sciences du Goût et de l'Alimentation, CNRS UMR6265, INRA UMR1324, Université de Bourgogne, Dijon, France
| | - María Teresa Morales
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Seville, Calle Profesor García González, nº 2, 41012 Seville, Spain
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Sakaguchi W, Saruta J, Yamamoto Y, Shimizu T, Fuchida S, Tsukinoki K. Identification of citrullinated α1-antitrypsin (A1AT) in saliva in a mouse model of rheumatoid arthritis. J Oral Biosci 2024:S1349-0079(24)00076-8. [PMID: 38554831 DOI: 10.1016/j.job.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 04/02/2024]
Abstract
OBJECTIVES Rheumatoid arthritis (RA) is an autoimmune disease characterized by progressive joint destruction. Early diagnosis and treatment, before joint deformation or destruction occurs, are crucial. Identifying novel biomarkers for RA in saliva could potentially enable early detection of the disease, prior to its onset. METHODS We conducted a comprehensive proteomic analysis of salivary proteins in a mouse model of RA. Proteins were identified using western blotting and enzyme-linked immunosorbent assay in the serum, saliva, and ankle joints of DBA/1JJmsSlc mice, a model of RA. Ankle joints and submandibular glands were stained with hematoxylin and eosin and immunostained, and the results were compared with those of control mice. RESULTS Citrullinated alpha-1 antitrypsin (A1AT, 46 kDa) was commonly detected in the saliva, serum, and ankle joints of mice with severe RA and was confirmed through proteomic analysis. Western blotting showed a band corresponding to 46 kDa in the serum, saliva, and ankle joints. Immunostaining of the ankle joints with the A1AT antibody showed a strong positive signal in the synovium. CONCLUSIONS In DBA/1JJmsSlc mice, cyclic citrullinated peptide antibodies and A1AT may be involved in citrullination and contribute to the development and severity of RA, making them valuable treatment targets requiring further study.
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Affiliation(s)
- Wakako Sakaguchi
- Department of Pathology and Histomorphology, Kanagawa Dental University, 82 Inaoka, Yokosuka, Kanagawa 238-8580, Japan.
| | - Juri Saruta
- Department of Education Planning, Kanagawa Dental University, 82 Inaoka, Yokosuka, Kanagawa 238-8580, Japan.
| | - Yuko Yamamoto
- Department of Dental Hygiene, Kanagawa Dental University, Junior College, 82 Inaoka, Yokosuka, Kanagawa 2388580, Japan.
| | - Tomoko Shimizu
- Department of Implantology and Periodontology, Kanagawa Dental University, 3-31-6 Tsuruya, Kanagawa-ku, Yokohama 2210835, Kanagawa, Japan.
| | - Shinya Fuchida
- Department of Education Planning, Kanagawa Dental University, 82 Inaoka, Yokosuka, Kanagawa 238-8580, Japan.
| | - Keiichi Tsukinoki
- Department of Pathology and Histomorphology, Kanagawa Dental University, 82 Inaoka, Yokosuka, Kanagawa 238-8580, Japan.
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