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Association of Single-Nucleotide Polymorphisms in Sweet Taste Perception and Intake Genes with Primary Ciliary Dyskinesia and Its Clinical Phenotypes.

Primary ciliary dyskinesia (PCD) is a congenital motile ciliopathy causing impaired mucociliary clearance and characterized by recurrent respiratory infections affecting both the upper and lower airways. Several genes involved in taste perception pathways are expressed in extraoral tissues and have recently emerged as regulators of airway immune responses. This study aimed to (1) analyze potential correlations between PCD clinical manifestations and (2) investigate whether genetic variants within sweet signaling genes (SweetG) could be associated with PCD features. A total of 17 SNPs in nine S…

Overcoming mirtazapine's therapeutic limitations in veterinary practice: Development of a taste - masked orally disintegrating tablet with microsphere-based controlled release.

Anorexia is a clinically significant condition in companion animals, particularly cats, that disrupts metabolic homeostasis and impedes reco … tegration and complete drug release under gastric conditions, and effective masking of MRZ's bitter taste in the oral cavity. In vivo evaluations revealed significantly improved palatability (p < 0.05) and preliminary evidence of appetite stimulation (p < 0.05) compared with conventional formulations, supporting further clinical development. Stability s …

Естественные модули вкуса и микробиомеозная поддержка в области питания для иммунотерапии-ассоциированной дисгеусии: перевод для оказания помощи в лечении рака.

Дисгейсия является клинической, но по-прежнему недостаточно стандартизированной токсичностью для лечения рака. В эпоху иммунотерапии расстройства вкуса становятся все более актуальными для пациентов, получающих ингибиторы на иммунных контрольно-пропускных пунктах, химерик антигенные рецепторы (CAR) T-клеток и T-перенаправленные антитела, с группой G-белковых рецепторов C 5 - лечение в множестве миэлома, осуществляемое под руководством члена D (GPRC5D), представляет собой особенно поучительную модель с высокой нагрузкой. Мы провели структурированный критический обзор с картированием доказательс

Совпадение в аннотации оригинала
Dysgeusia is a clinically consequential, but still under-standardized, toxicity of cancer treatment. In the immunotherapy era, taste disturbances are increasingly relevant for patients receiving immune checkpoint inhibitors, chimeric antigen receptor (CAR) T-cell therapies and T-cell-redirecting bispecific antibodies, with G protein-coupled receptor family C…

Increased tyrosine hydroxylase abundance in the ventral tegmental area after taste-immune associative learning with saccharin or sucrose in rats.

Several animal studies have already demonstrated classical conditioning of immune responses, when a novel sweet solution was paired with the … -exposure to saccharin or sucrose has similar or different effects. To address this, we conducted a taste-immune associative learning study in rats, using saccharin or sucrose and the immunosuppressive drug fingolimod. Subsequently, we analyzed central tyrosine hydroxylase (TH) abundance and phosphorylation (pTH) to indirectly assess dopamine production …

Decoding of the saltiness enhancement taste peptides from Jinhua ham and its molecular mechanism of interaction with ENaC/TMC4 receptors.

This study focused on unlocking the potential of Jinhua ham-derived peptides (JHP) for enhancing saltiness. JHP (<3 kDa) was obtained through ultrafiltration and desalting, reducing the salt content by 96 %. Four peptide fractions (JHP-P1/P2/P3/P4) were isolated using Sephadex G-25 gel filtration and anion-exchange chromatography. Sensory evaluation and electronic tongue analysis revealed that JHP-P2 (0.5 mg/mL) exhibited the highest saltiness which could replace four-fold NaCl salinity. Three peptides (DL, FMSALF, and HVRRK) identified by UPLC-QTOF-MS/MS were simulated with salty taste recept…

Integrated Transcriptomic and Metabolomic Analyses Reveal Changes in Aroma- and Taste-Related Substances During the Withering Process of Black Tea.

Withering is one of the major processing steps critical for the quality of black tea. In this study, we investigated the mechanisms underlying the physicochemical changes in metabolites and gene expression during the withering process of black tea using metabolomic and transcriptomic approaches, respectively. Based on gas chromatography/mass spectrometry non-targeted metabolomic approaches (GC-MS) and ultra-high performance liquid chromatograph-tandem mass spectrometry (UHPLC-MS/MS), a total of 76 volatile compounds and 160 non-volatile compounds were identified from tea leaves, respectively.

Assessment of Correlation between Genetic Taste Perception Hormonal Fingerprint and Dental Caries Incidence in Schoolgoing Children: An In Vivo Study.

BACKGROUND: Genetic predilection toward sweeter cariogenic foods mediated by the TAS2R38 gene, tested by phenylthiourea [phenylthiocarbamide (PTC)] compounds. Some individuals find it extremely bitter whereas some find it completely tasteless, being classified as a taster and a nontaster respectively. A majority of nontasters prefer foods with sweeter and stronger flavors, thus making them more susceptible to dental caries. Genetic taste perception is greatly influenced by prenatal androgen exposure represented by hormonal fingerprint, that is, ratio of second to fourth digit lengths (2D:4D ra…

Long term Coptidis Rhizoma intake induce gastrointestinal emptying inhibition and colon barrier weaken via bitter taste receptors activation in mice.

BACKGROUND: Coptidis Rhizoma, a classic bitter traditional Chinese medicine, can lead to digestive dysfunction when long-term use according to traditional experience. Bitter taste receptors have been found to regulate gastrointestinal smooth muscle contraction. Coptidis Rhizoma alkaloids are potential agonists for bitter taste receptors, but whether they can induce gastrointestinal dysfunction via bitter taste receptors is not clear. PURPOSE: The purpose of this study is to elucidate whether long-term Coptidis Rhizoma decoction/berberine intake can affect gastrointestinal function via bitter …

Evaluation of children and adults with post-COVID-19 persistent smell, taste and trigeminal chemosensory disorders: A hospital based study.

BACKGROUND: Smell disorders are the most frequent persistent coronavirus disease 2019 (COVID-19) complications. AIM: To describe the patterns and characteristics of persistent smell and taste disorders in Egyptian patients. METHODS: Assessment was done to 185 patients (adults = 150, age: 31.41 ± 8.63 years; children = 35; age: 15.66 ± 1.63 years). Otolaryngology and neuropsychiatric evaluations were done. Measurements included: A clinical questionnaire (for smell and taste); sniffin' odor, taste and flavor identification tests and the Questionnaire of Olfactory Disorders-Negative Statements …

Bisphosphonate affects the behavioral responses to HCl by disrupting farnesyl diphosphate synthase in mouse taste bud and tongue epithelial cells.

Little is known about the molecular mechanisms underlying drug-induced taste disorders, which can cause malnutrition and reduce quality of life. One of taste disorders is known adverse effects of bisphosphonates, which are administered as anti-osteoporotic drugs. Therefore, the present study evaluated the effects of risedronate (a bisphosphonate) on taste bud cells. Expression analyses revealed that farnesyl diphosphate synthase (FDPS, a key enzyme in the mevalonate pathway) was present in a subset of mouse taste bud and tongue epithelial cells, especially type III sour-sensitive taste cells. …

Taste alterations during neo/adjuvant chemotherapy and subsequent follow-up in breast cancer patients: a prospective single-center clinical study.

PURPOSE: Dysgeusia and taste alterations (TAs) are side effects of cytotoxic chemotherapy and affect patients' quality of life; however, the prevalence, types, and duration of TAs and their potential relationship with other clinical disturbances are not well-described. Our primary aim was to prospectively evaluate the characteristics of TAs in early breast cancer (EBC) patients during (neo)adjuvant chemotherapy and up to 1 year after its completion. METHODS: From April 2014 to June 2018, 182 EBC patients entered the study and received (neo)adjuvant chemotherapy, mostly with taxane and anthrac…

The short third intracellular loop and cytoplasmic tail of bitter taste receptors provide functionally relevant GRK phosphorylation sites in TAS2R14.

For most G protein-coupled receptors, the third intracellular loop (IL3) and carboxy-terminal tail (CT) are sites for G protein-coupled receptor kinase (GRK)-mediated phosphorylation, leading to β-arrestin binding and agonist-specific desensitization. These regions of bitter taste receptors (TAS2Rs) are extremely short compared with the superfamily, and their function in desensitization is unknown. TAS2R14 expressed on human airway smooth muscle cells relax the cell, suggesting a novel target for bronchodilators. To assess IL3 and CT in agonist-promoted TAS2R14 desensitization (tachyphylaxis),…

T1R3 homomeric sweet taste receptor negatively regulates insulin-induced glucose transport through Gαs-mediated microtubules disassembly in 3T3-L1 adipocytes.

T1R3 is a class C G protein-coupled receptor family member that forms heterodimeric umami and sweet taste receptors with T1R1 and T1R2, respectively, in the taste cells of taste buds. T1R3 is expressed in 3T3-L1 cells in homomeric form and negatively regulates adipogenesis in a Gαs-dependent but cAMP-independent manner. Although T1R3 expression is markedly upregulated during adipogenesis, its physiological role in mature adipocytes remains obscure. Here, we show that stimulation of T1R3 with sucralose or saccharin induces microtubule disassembly in differentiated 3T3-L1 adipocytes. The effect …

Taste masking of propranolol hydrochloride by microbeads of EUDRAGIT® E PO obtained with prilling technique for paediatric oral administration.

The purpose of this study was to develop a new solid paediatric formulation for propranolol hydrochloride (PR). This drug is used to treat various paediatric diseases, and recently received clearance to treat haemangioma. However, PR has a bitter salty taste that does not facilitate high rates of compliance among children, especially in liquid formulations. In addition, the solid formulations are designed for adults and often their dosage is not suitable for children that require a flexible dose based on their weight. Therefore, matrix microbeads of EUDRAGIT® E PO containing PR were manufactur…

Nicotine pre-treatment reduces sensitivity to the interoceptive stimulus effects of commonly abused drugs as assessed with taste conditioning paradigms.

BACKGROUND: Drug pre-exposure attenuates sensitivity to the interoceptive stimulus properties of additional subsequently administered drugs in drug-induced conditioned taste avoidance (CTA) and conditioned place preference (CPP) paradigms. Specifically, nicotine, commonly used in conjunction with other addictive substances, attenuates acquisition of ethanol and caffeine CTAs and morphine-induced CPP. METHODS: Because nicotine use is comorbid with a number of substance use disorders, we systematically examined the effects of nicotine pre-exposure on two different conditioning paradigms involvi…

Maintenance of Mouse Gustatory Terminal Field Organization Is Disrupted following Selective Removal of Peripheral Sodium Salt Taste Activity at Adulthood.

Neural activity plays a critical role in the development of central circuits in sensory systems. However, the maintenance of these circuits at adulthood is usually not dependent on sensory-elicited neural activity. Recent work in the mouse gustatory system showed that selectively deleting the primary transduction channel for sodium taste, the epithelial sodium channel (ENaC), throughout development dramatically impacted the organization of the central terminal fields of three nerves that carry taste information to the nucleus of the solitary tract. More specifically, deleting ENaCs during deve…

Long-Term Alcohol Drinking Reduces the Efficacy of Forced Abstinence and Conditioned Taste Aversion in Crossed High-Alcohol-Preferring Mice.

BACKGROUND: Negative outcomes of alcoholism are progressively more severe as the duration of problem of alcohol use increases. Additionally, … rinking history would reduce the ability of 2 manipulations (forced abstinence [FA] and conditioned taste aversion [CTA]) to attenuate drinking. METHODS: Experiment 1 examined differences between groups drinking for either 14 or 35 days, half of each subjected to 7 days of FA and half not, to characterize the potential changes in postabstinence drinkin …

Latent inhibition in rats neonatally treated chronically with MK-801: differential effects on conditioned taste aversion and conditioned emotional response.

Chronic neonatal blockade of N-methyl-d-aspartate (NMDA) receptors produces various abnormal behaviors in adulthood animals. This study investigated the effects of neonatal treatment chronically with MK-801 in rats on the preexposure-induced retardation of CS-US association, i.e. latent inhibition (LI), of two aversive classical conditioning tasks in adulthood. In conditioned taste aversion (CTA) using sucrose taste and LiCl, neonatal chronic MK-801 (0.4 mg/kg twice/day) treatment attenuated the inhibitory effect of sucrose preexposure on the aversive conditioning, although the treatment did n…

Rapid and sensitive ultrasonic-assisted derivatisation microextraction (UDME) technique for bitter taste-free amino acids (FAA) study by HPLC-FLD.

Amino acids, as the main contributors to taste, are usually found in relatively high levels in bitter foods. In this work, we focused on seeking a rapid, sensitive and simple method to determine FAA for large batches of micro-samples and to explore the relationship between FAA and bitterness. Overall condition optimisation indicated that the new UDME technique offered higher derivatisation yields and extraction efficiencies than traditional methods. Only 35min was needed in the whole operation process. Very low LLOQ (Lower limit of quantification: 0.21-5.43nmol/L) for FAA in twelve bitter food…