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Blatt, Suzanne; Borden, John H.; Pierce, H. D.; Gries, Regine

doi:10.1023/a:1022350402535

Cited by 31 publications

(6 citation statements)

References 35 publications

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“…Some E-isomers have been shown to be important alarm compounds (Pavis et al, 1994;Fucarino et al, 2004), but the function of Z-isomers remains unknown, and it is possible that they are present in equilibrium with the E-isomers in low amounts. There is strong evidence that males, females and nymphs respond differently to blends from different stages or sexes (Kou et al, 1989;Blatt et al, 1998). Our study shows that there are predictable changes in blends within species that might be responsible for these behavioural effects and compositional differences that are potentially behaviourally relevant.…”

Section: Discussionmentioning

confidence: 60%

“…Heteropteran species are well known for producing blends of odoriferous compounds that serve the dual purpose of defence against predation and as alarm pheromones. Despite the vast information on this defensive chemistry of many pentatomid species (Borges and Aldrich, 1992;Aldrich et al, 1993a;Zarbin et al, 2000) studies on the differences in the blends produced by nymphs and adults (Aldrich and Yonke, 1975;Borges and Aldrich, 1992;Farine et al, 1992b;Blatt et al, 1998) and between males and females (Aldrich et al, 1993b;Ho et al, 2003) have carried out mainly qualitative analyses of differences, and there have been few quantitative assessments of variations in volatile blends. Furthermore, little is known about how conserved blends are between nymphs, males and females between species, and whether these blends reflect the taxonomic relationships between pentatomid species.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Inter- and intraspecific variation in defensive compounds produced by five neotropical stink bug species (Hemiptera: Pentatomidae)

Pareja

Borges

Laumann

et al. 2007

Journal of Insect Physiology

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Section: Discussionmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Inter- and intraspecific variation in defensive compounds produced by five neotropical stink bug species (Hemiptera: Pentatomidae)

Pareja

Borges

Laumann

et al. 2007

Journal of Insect Physiology

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“…Furthermore, interesting connections with stress can be found when searching for the most important VOCs based on the stepwise selection in the literature. For example, VOC1, which is hexanal, was previously reported to be a pheromone that increases anxiety in rats and served as an alarm pheromone in insects. , Hexanal has been reported to increase dopamine release in rats, which may provide a piece of the puzzle that links stress to the dopaminergic system activated during stress. VOC2, 2-hydroxy-2-methyl-propanoic acid, a derivative of propanoic acid, was found in a study that exposed people to movies with different themes and tested their VOC odor .…”

Section: Resultsmentioning

confidence: 99%

Noninvasive Detection of Stress by Biochemical Profiles from the Skin

et al. 2023

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Stress is a leading cause of several disease types, yet it is underdiagnosed as current diagnostic methods are mainly based on self-reporting and interviews that are highly subjective, inaccurate, and unsuitable for monitoring. Although some physiological measurements exist (e.g., heart rate variability and cortisol), there are no reliable biological tests that quantify the amount of stress and monitor it in real time. In this article, we report a novel way to measure stress quickly, noninvasively, and accurately. The overall detection approach is based on measuring volatile organic compounds (VOCs) emitted from the skin in response to stress. Sprague Dawley male rats (n = 16) were exposed to underwater trauma. Sixteen naive rats served as a control group (n = 16). VOCs were measured before, during, and after induction of the traumatic event, by gas chromatography linked with mass spectrometry determination and quantification, and an artificially intelligent nanoarray for easy, inexpensive, and portable sensing of the VOCs. An elevated plus maze during and after the induction of stress was used to evaluate the stress response of the rats, and machine learning was used for the development and validation of a computational stress model at each time point. A logistic model classifier with stepwise selection yielded a 66–88% accuracy in detecting stress with a single VOC (2-hydroxy-2-methyl-propanoic acid), and an SVM (support vector machine) model showed a 66–72% accuracy in detecting stress with the artificially intelligent nanoarray. The current study highlights the potential of VOCs as a noninvasive, automatic, and real-time stress predictor for mental health.

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“…(E)-2-Hexen-1-ol (12), 2,4-hexadienal (15), 2-octenyl acetate (43), and α-caryophyllene (54) were characteristic of adults, while 5-ethyl-2(3H)-furanone (22), (Z)-2-octenal (31), (E)-2-octenal (32), 2-isopropylcyclohexanone (38) and (E)-2-decenal (46) were responsible for the discrimination of nymphs. Differences in the volatiles emitted by adults and nymphs have been reported in different heteropteran families, such as Coreidae 17,18 and Pentatomidae, 19 and they might be associated with changes in predator guilds. 18 However, little is known about natural enemies of Phloeidae.…”

Section: Volatile Compounds From the Bark Bugs Phloea Subquadrata Andmentioning

confidence: 96%

Volatile Compounds from the Bark Bugs Phloea subquadrata and Phloeophana longirostris (Heteroptera: Phloeidae)

Fonseca¹,

Salomão²,

Vasconcellos‐Neto³

et al. 2017

J. Braz. Chem. Soc.

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Phloea subquadrata and Phloeophana longirostris are subsocial species that differ from each other in their host plants and degrees of aggregation. Until recently, only ten low-molecular weight compounds, a sesquiterpene, and dimers of (E)-4-oxo-2-hexenal had been reported from the contents of P. subquadrata glands. Here, the main goal was to distinguish the volatile compounds released by adult males, adult females and nymphs of the two species. The analyses revealed 103 compounds, of which 44 were exclusive to Phloeophana longirostris and 15 were exclusive to Phloea subquadrata. The data were analyzed by chemometric methods, which discriminated the phloeid species by developmental stage and sex. (E)-2-Hexenal, (E)-4-oxo-2-hexenal and (E)-2-octenal were found in both species. Adult individuals were characterized by the presence of methyl 2-methylbutanoate, (E)-2-hexenyl acetate and 2-hexenyl butanoate, and nymphs were characterized by 5-ethyl-2(3H)-furanone and (E)-2-octenal. There was chemical distinction between volatiles of adults and nymphs of the two species studied.

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Cited by 31 publications

References 35 publications

Inter- and intraspecific variation in defensive compounds produced by five neotropical stink bug species (Hemiptera: Pentatomidae)

Inter- and intraspecific variation in defensive compounds produced by five neotropical stink bug species (Hemiptera: Pentatomidae)

Noninvasive Detection of Stress by Biochemical Profiles from the Skin

Volatile Compounds from the Bark Bugs Phloea subquadrata and Phloeophana longirostris (Heteroptera: Phloeidae)

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