A circannual rhythm in unstimulated salivary flow rate when the ambient temperature varies by only about 2°C

Kariyawasam, A; Dawes, C.

doi:10.1016/j.archoralbio.2005.03.001

Cited by 21 publications

(10 citation statements)

References 4 publications

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“…In this regard, salivary flow rate is extremely low during the sleep period and high in the afternoon, possibly influenced by changes in hormone secretion during the 24-h period. In addition, a lower flow rate is observed during the summer months probably by influencing the degree of hydration [28].…”

Section: Discussionmentioning

confidence: 98%

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Salivary bone turnover markers in healthy pre- and postmenopausal women: daily and seasonal rhythm

et al. 2011

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No studies had investigated circadian and circannual rhythms of bone biomarkers in whole saliva. We evaluated the salivary daily and seasonal rhythm of carboxy-terminal telopeptide of type I collagen (CTX) and bone alkaline phosphatase (b-ALP). Forty clinical and oral healthy ambulatory pre- and postmenopausal women from two southern Argentine cities: Comodoro Rivadavia (latitude 45º S) and Ushuaia (latitude 54º S) were included in the study. CTX levels were evaluated in serum, urine, and saliva, and b-ALP levels were measured in serum and saliva. In both groups of women, salivary CTX showed a maximum percentage of change early in the morning (80%) and a minimum in the late afternoon (45%), similarly to the pattern observed in urinary samples. No daily rhythm was observed in serum or salivary b-ALP. 25-Hydroxyvitamin D levels decreased in winter vs. summer (p < 0.01) without differences between the two studied groups. Conversely, parathormone reached higher levels in winter (p < 0.05) which induced a slight non-significant increment in salivary CTX and b-ALP levels. The results showed that, as in serum and urinary samples, salivary CTX exhibits daily and a slight seasonal rhythmicity. Whole non-stimulated saliva is a useful tool to detect several oral and systemic diseases because it has important advantages compared to serum and urinary samples. Then, it may also be a promising sample to test changes in bone metabolism contributing to diagnose and to monitor the therapy of several metabolic bone diseases.

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Section: Discussionmentioning

confidence: 98%

“…As for the latter, non-stimulated salivary flow rate presents circadian and circannual variations [27,28]. In this regard, salivary flow rate is extremely low during the sleep period and high in the afternoon, possibly influenced by changes in hormone secretion during the 24-h period.…”

Section: Discussionmentioning

confidence: 98%

Salivary bone turnover markers in healthy pre- and postmenopausal women: daily and seasonal rhythm

et al. 2011

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“…Following these recommendations was not practical for this study due to the number of samples required from the single subject (>120). Sessions may have been required to be a combination of longer (possibly introducing hunger effects) and/or more numerous (possibly introducing circannual rhythm effects; Kariyawasam and Dawes 2005). Brand et al (2006) investigated the effect of beer drinking on whole saliva flow rate and amylase concentration.…”

Section: Validity Of Experimental Protocolmentioning

confidence: 99%

Understanding the Link between Bolus Properties and Perceived Texture

Young

Cheong

Hedderley

et al. 2013

Journal of Texture Studies

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The relationships between food structure, texture perception and bolus properties during bolus formation are poorly understood. This preliminary single‐subject study on three biscuit recipes investigated the links between bolus macrostructure, perceived texture (using temporal dominance of sensations), and mechanical and rheological properties (using back extrusion and consecutive double compression) throughout mastication. The fracture properties of the biscuits dominated textural perception in the early stages of mastication. As mastication progressed, a sensory transition from dry to sticky was accompanied by an increase in “cohesiveness” and decreases in the consistency coefficient, peak force and “adhesiveness.” At the point of swallow, the boluses were shear thinning pastes and sticky dominated perception. Consistency coefficient and “cohesiveness” indicated different swallowing thresholds for the different recipes. This study found back extrusion to be a suitable method for characterizing biscuit bolus rheology in the later stages of mastication as it is unaffected by bolus dimensions. Practical Applications Mastication of a solid food involves the breakdown of the food and reassembly with saliva into a deformable bolus that can be swallowed safely. The relationships between the perceived texture and structural, mechanical and rheological properties throughout mastication are not well understood. An understanding of these relationships could aid in the design of foods that can be swallowed safely by the elderly or those with dysphagia, or foods that follow a desired oral processing path and thus have a desired texture profile or flavor release.

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“…According to several studies, the saliva composition depends on individual characteristics and environmental factors including gender, age, nutritional status, and systemic diseases and medication . Despite its importance, the influence of the individual on saliva biomonitoring was rarely studied.…”

Section: Reflects On Saliva Diagnosis’s Challengesmentioning

confidence: 99%

“…According to several studies, [14][15][16][17] The number of articles of salivary and blood diagnostics based on PubMed. Until the seventies, we can clearly see that the literature regarding saliva was very scarce and the number of reports bearing on blood has highly outperformed those related to saliva.…”

Section: Saliva Biomonitoring: the Great Challenge For A Neglected mentioning

confidence: 99%

Suggestions for creating the International Scientific Foundation of Saliva Diagnosis (ISFSD): New research strategies, development, and technologies

Mediouni¹,

Kaczor‐Urbanowicz

Madiouni

2019

Oral Science International

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Saliva is an emerging biofluid for personalized/precision medicine application. As it has recently become a major tool for biological research and biomarker discovery, it is of vital importance to develop and optimize the diagnostics standards to decipher the omics constituents in saliva in order to achieve better oral and systemic health. Although current variations in saliva sampling, study designs, and developmental methods of salivary biomarkers prevent direct comparisons of the data obtained from different studies, the lack of standardization and unification of the processing procedures undermines saliva's diagnostic potential. Thus, it motivated us to propose the idea of creating an International Scientific Foundation of Salivary Diagnosis (ISFSD) that could encourage collaborative efforts to establish international guidelines and standardized protocols for saliva collection and laboratorial processing as well as clinical diagnostics. The ISFSD can accelerate the validation of biomarkers in larger groups of patients, their regulatory approval, and implementation of saliva diagnostics into a real clinical practice. It will also result in identification of practical and achievable priorities, and will present policy initiatives critical to the implementation of oral health improvement programs. The establishment of ISFSD will be of great interest and influence in the fields of oral health, dentistry, and medicine.

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A circannual rhythm in unstimulated salivary flow rate when the ambient temperature varies by only about 2°C

Cited by 21 publications

References 4 publications

Salivary bone turnover markers in healthy pre- and postmenopausal women: daily and seasonal rhythm

Salivary bone turnover markers in healthy pre- and postmenopausal women: daily and seasonal rhythm

Understanding the Link between Bolus Properties and Perceived Texture

Suggestions for creating the International Scientific Foundation of Saliva Diagnosis (ISFSD): New research strategies, development, and technologies

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