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Schreiber A, Braymer HD, Primeaux SD. Transection of Gustatory Nerves Differentially Affects Dietary Fat Intake in Obesity-Prone and Obesity-Resistant Rats. Chem Senses 2021; 45:541-548. [PMID: 32766712 DOI: 10.1093/chemse/bjaa053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The current prevalence of obesity has been linked to the consumption of highly palatable foods and may be mediated by a dysregulated or hyposensitive orosensory perception of dietary fat, thereby contributing to the susceptibility to develop obesity. The goal of the current study was to investigate the role of lingual taste input in obesity-prone (OP, Osborne-Mendel) and obesity-resistant (OR, S5B/Pl) rats on the consumption of a high-fat diet (HFD). Density of fungiform papillae was assessed as a marker of general orosensory input. To determine if orosensory afferent input mediates dietary fat intake, surgical transection of the chorda tympani and glossopharyngeal nerves (GLX/CTX) was performed in OP and OR rats and HFD caloric intake and body weight were measured. Fungiform papillae density was lower in OP rats, compared with OR rats. GLX/CTX decreased orosensory input in both OP and OR rats, as measured by an increase in the intake of a bitter, quinine solution. Consumption of low-fat diet was not altered by GLX/CTX in OP and OR rats; however, GLX/CTX decreased HFD intake in OR, without altering HFD intake in OP rats. Overall, these data suggest that inhibition of orosensory input in OP rats do not decrease fat intake, thereby supporting that idea that hyposensitive and/or dysregulated orosensory perception of highly palatable foods contribute to the susceptibility to develop obesity.
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Affiliation(s)
- Allyson Schreiber
- Department of Physiology, LSU Health Sciences Center, New Orleans, LA, USA
| | - Hugh Douglas Braymer
- Joint Diabetes, Endocrinology & Metabolism Program, Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Stefany D Primeaux
- Department of Physiology, LSU Health Sciences Center, New Orleans, LA, USA.,Joint Diabetes, Endocrinology & Metabolism Program, Pennington Biomedical Research Center, Baton Rouge, LA, USA
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Kataoka S, Baquero A, Yang D, Shultz N, Vandenbeuch A, Ravid K, Kinnamon SC, Finger TE. A2BR adenosine receptor modulates sweet taste in circumvallate taste buds. PLoS One 2012; 7:e30032. [PMID: 22253866 PMCID: PMC3254652 DOI: 10.1371/journal.pone.0030032] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 12/12/2011] [Indexed: 11/19/2022] Open
Abstract
In response to taste stimulation, taste buds release ATP, which activates ionotropic ATP receptors (P2X2/P2X3) on taste nerves as well as metabotropic (P2Y) purinergic receptors on taste bud cells. The action of the extracellular ATP is terminated by ectonucleotidases, ultimately generating adenosine, which itself can activate one or more G-protein coupled adenosine receptors: A1, A2A, A2B, and A3. Here we investigated the expression of adenosine receptors in mouse taste buds at both the nucleotide and protein expression levels. Of the adenosine receptors, only A2B receptor (A2BR) is expressed specifically in taste epithelia. Further, A2BR is expressed abundantly only in a subset of taste bud cells of posterior (circumvallate, foliate), but not anterior (fungiform, palate) taste fields in mice. Analysis of double-labeled tissue indicates that A2BR occurs on Type II taste bud cells that also express Gα14, which is present only in sweet-sensitive taste cells of the foliate and circumvallate papillae. Glossopharyngeal nerve recordings from A2BR knockout mice show significantly reduced responses to both sucrose and synthetic sweeteners, but normal responses to tastants representing other qualities. Thus, our study identified a novel regulator of sweet taste, the A2BR, which functions to potentiate sweet responses in posterior lingual taste fields.
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Affiliation(s)
- Shinji Kataoka
- Rocky Mountain Taste & Smell Center, University of Colorado School of Medicine, Aurora, Colorado, United States of America
- Department of Cell & Developmental Biology, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Arian Baquero
- Rocky Mountain Taste & Smell Center, University of Colorado School of Medicine, Aurora, Colorado, United States of America
- Depatment of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Dan Yang
- Departments of Medicine and Biochemistry and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Nicole Shultz
- Rocky Mountain Taste & Smell Center, University of Colorado School of Medicine, Aurora, Colorado, United States of America
- Department of Cell & Developmental Biology, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Aurelie Vandenbeuch
- Rocky Mountain Taste & Smell Center, University of Colorado School of Medicine, Aurora, Colorado, United States of America
- Depatment of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Katya Ravid
- Departments of Medicine and Biochemistry and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Sue C. Kinnamon
- Rocky Mountain Taste & Smell Center, University of Colorado School of Medicine, Aurora, Colorado, United States of America
- Depatment of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Thomas E. Finger
- Rocky Mountain Taste & Smell Center, University of Colorado School of Medicine, Aurora, Colorado, United States of America
- Department of Cell & Developmental Biology, University of Colorado School of Medicine, Aurora, Colorado, United States of America
- * E-mail:
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Smith DV, Som J, Boughter JD, St John SJ, Yu C, Christy RC. Cellular expression of alpha-gustducin and the A blood group antigen in rat fungiform taste buds cross-reinnervated by the IXth nerve. J Comp Neurol 1999; 409:118-30. [PMID: 10363715 DOI: 10.1002/(sici)1096-9861(19990621)409:1<118::aid-cne9>3.0.co;2-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Although taste buds are trophically dependent on their innervation, cross-reinnervation experiments have shown that their gustatory sensitivities are determined by the local epithelium. Both the gustatory G-protein, alpha-gustducin, and the cell-surface carbohydrate, the A blood group antigen, are expressed by significantly fewer fungiform than vallate taste cells in the rat. In these experiments, one side of the anterior portion of the tongue was cross-reinnervated by the IXth nerve in order to determine whether the molecular expression of taste bud cells is determined by the epithelium from which they arise or by the nerve on which they are trophically dependent. The proximal portion of the IXth nerve was anastomosed to the distal portion of the chorda tympani (CT) nerve using fibrin glue (IX-CT rats). Control animals had the CT cut and reanastomosed using the same technique (CT-CT rats), or had the CT avulsed from the bulla and resected to prevent regeneration (CTX rats). The animals survived for 12 weeks postoperatively, and the tongues were removed, stained with methylene blue, and the fungiform taste pores counted on both sides. Tissue from the anterior 5 mm of the tongue was cut into 50-microm sections, which were incubated with antibodies against alpha-gustducin and the human blood group A antigen. In both CT-CT and IX-CT rats, there was regeneration of fungiform taste buds, although in both groups there were significantly fewer taste buds on the operated side of the tongue. The normal vallate papilla had a mean of 8.37 alpha-gustducin-expressing cells and 5.22 A-expressing cells per taste bud, whereas the fungiform papillae contained 3.06 and 0.23 cells per taste bud, respectively. In both CT-CT and IX-CT rats there was a normal number of cells expressing alpha-gustducin or the A antigen in regenerated taste buds; in the CTX animals there was a significant decrease in the expression of these markers. These results demonstrate that the molecular phenotype of taste bud cells is determined by the local epithelium from which they arise and not by properties of the innervating nerve.
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Affiliation(s)
- D V Smith
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore 21201-1509, USA.
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Wakisaka S, Miyawaki Y, Youn SH, Kato J, Kurisu K. Protein gene-product 9.5 in developing mouse circumvallate papilla: comparison with neuron-specific enolase and calcitonin gene-related peptide. ANATOMY AND EMBRYOLOGY 1996; 194:365-72. [PMID: 8896700 DOI: 10.1007/bf00198538] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The present study was made to investigate the ontogeny of protein gene-product 9.5 (PGP 9.5)-like immunoreactivity (-LI) in the developing mouse circumvallate papilla (CVP), and its distribution was compared to that of neuron-specific enolase (NSE) and calcitonin gene-related peptide (CGRP). In adult CVP, PGP 9.5-LI was observed in the subgemmal nerve plexus; some thin PGP 9.5-like immunoreactive (-IR) nerve fibers penetrated taste buds and apical epithelium. PGP 9.5-LI was also observed in the spindle-shaped cells in taste buds, and a small number of round- or oval-shaped ganglionic cells in the lamina propria. The distribution of NSE-LI was comparable to that of PGP 9.5-LI. CGRP-LI was observed in the nerve fibers only; distribution of CGRP-IR nerve fibers was similar to that of PGP 9.5-IR nerve fibers, although the number of CGRP-IR nerve fibers was smaller than that of PGP 9.5-IR nerve fibers. At least six developmental stages were defined with regard to the developmental changes in the distribution of PGP 9.5-LI from embryonic day (E) 12 to adulthood: Stage I (E12-13)-a dense nerve plexus of PGP 9.5-IR nerve fibers was detected in the lamina propria beneath the core of newly-formed papilla. Stage II (E14-16) - thin PGP 9.5-IR nerve fibers penetrated the apical epithelium, and a few round-shaped cells in the apical epithelium also displayed PGP 9.5-LI. Stage III (E17-18) - thin PGP 9.5-IR nerve fibers penetrated the inner lateral epithelium of the trench. Stage IV [Postnatal day (P) 0-3] - many PGP 9.5-IR nerve fibers penetrated the outer lateral epithelium of the trench; later in this stage, taste buds appeared. Stage V (P5-10) - a small number of PGP 9.5-IR cells in the taste buds appeared, and their number increased gradually. Stage VI (P14-adult) - the number of PGP 9.5-IR taste cells increased and reached the adult level, while the number of PGP 9.5-IR nerve fibers decreased. The development of NSE-LI was similar to that of PGP 9.5-LI. CGRP-IR nerve fibers were detected at E12 in the lamina propria, and the development of the intraepithelial CGRP-IR nerve fibers was similar to that of PGP 9.5-IR nerve fibers. The present results indicate that invasion by nerve fibers of the epithelium of lingual papillae occurs in a complex manner, and that these nerve fibers may participate in the formation of the taste buds.
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Affiliation(s)
- S Wakisaka
- Department of Oral Anatomy and Developmental Biology, Osaka University Faculty of Dentistry, Japan.
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Smith DV, Klevitsky R, Akeson RA, Shipley MT. Expression of the neural cell adhesion molecule (NCAM) and polysialic acid during taste bud degeneration and regeneration. J Comp Neurol 1994; 347:187-96. [PMID: 7814663 DOI: 10.1002/cne.903470204] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Taste receptor cells are replaced throughout life, accompanied by continuing synaptogenesis between newly formed taste cells and first-order gustatory fibers. The neural cell adhesion molecule (NCAM) is expressed by a subset of taste cells in adult rodents and appears on gustatory nerve fibers during development prior to differentiation of the taste buds. We employed antibodies against the extracellular domain of the NCAM polypeptide (mAb 3F4) and against polysialic acid (PSA) residues found on embryonic forms of NCAM (mAb 5A5) to investigate the relationship between the expression of these molecules and the innervation of taste buds in adult rats. In unoperated rats, anti-NCAM recognized a subset of cells within the vallate taste buds and also the fibers of the glossopharyngeal (IXth) nerve, including those innervating the gustatory epithelium. Taste bud cells did not express PSA but mAb 5A5 immunoreactivity was observed on some fibers of the IXth nerve, including a few that entered the taste buds. Bilateral crush of the IXth nerve resulted in the loss of NCAM expression from the gustatory epithelium within 8 days. As IXth nerve fibers reinnervated the epithelium, NCAM expression was seen first in the nerve, followed by increased expression in the epithelium as the taste cells differentiated from their precursors. PSA expression by fibers of the IXth nerve did not return to normal until well after the regeneration of the vallate taste buds. The present results demonstrate that taste cell expression of NCAM is dependent upon innervation by the IXth nerve and that NCAM expression appears in the nerve prior to its expression in the differentiating epithelium during regeneration.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- D V Smith
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Ohio 45267-0528
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Smith DV, Klevitsky R, Akeson RA, Shipley MT. Taste bud expression of human blood group antigens. J Comp Neurol 1994; 343:130-42. [PMID: 8027431 DOI: 10.1002/cne.903430110] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Some human blood group antigens are expressed by rodent epithelial cells at different stages of differentiation. Since adult taste cells are continually replaced throughout life, we investigated the expression of the H, B, A and Lewisb blood group determinants by cells of the rat fungiform, foliate and vallate papillae. We employed antibodies against the trisaccharide structures of the H, B, and A blood group antigens and against the Lewisb blood group epitope in studies of normal and denervated taste buds. The antibody against the H antigen reacted with the majority of cells in all taste buds and with cells in the spinous layer of the tongue epithelium. The B antigen was expressed by the majority of taste cells but not by other epithelial cells. The expression of the A antigen was significantly less in the fungiform taste buds than in the vallate or foliate taste buds. The A antigen was also abundantly expressed in the acini of the lingual salivary glands. The Lewisb epitope was expressed by a subset of cells in taste buds of the fungiform, foliate and vallate papillae. Taste buds are trophically dependent upon gustatory nerve innervation. Transection of the chorda tympani or the IXth nerve resulted in the loss of expression of these molecules from the gustatory epithelium, indicating that they are expressed only on differentiated taste cells. The blood group antigens are lactoseries carbohydrates; they are differentially expressed in developing cochlear hair cells and olfactory neurons and may play roles in cell-cell recognition, adhesion, and other interactions important in the developing nervous system. They could have similar functions in the taste and olfactory systems, where the receptors are continually renewed and new synapses between the receptors and their neural targets continually form.
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Affiliation(s)
- D V Smith
- Department of Otolaryngology--Head and Neck Surgery, University of Cincinnati College of Medicine, Ohio 45267-0528
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Smith DV, Akeson RA, Shipley MT. NCAM expression by subsets of taste cells is dependent upon innervation. J Comp Neurol 1993; 336:493-506. [PMID: 8245222 DOI: 10.1002/cne.903360403] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The expression of the neural cell adhesion molecule (NCAM) and distinct carbohydrate groups by cells of the taste buds of the rat vallate papilla was investigated by immunohistochemical and biochemical techniques. We employed antibodies against 1) the extracellular (mAb 3F4) and cytoplasmic (mAb 5B8) portions of the NCAM polypeptide, 2) the highly sialylated form of NCAM (mAb 5A5), 3) carbohydrate epitopes associated with glycosylated NCAM forms in the rat (mAb 2B8) or frog (mAb 9-OE) olfactory system, and also 4) the Lewisb blood group carbohydrate epitope (mAb CO431). NCAM mRNA was demonstrated by polymerase chain reaction (PCR) in samples of the vallate papilla, suggesting the presence of NCAM in cells of the taste buds. Antibodies against NCAM (mAbs 3F4 and 5B8) recognized a subset (about 20%) of cells within the vallate taste buds; fibers of the glossopharyngeal nerve, including those innervating the gustatory epithelium, were NCAM immunoreactive. Taste bud cells did not express polysialic acid (mAb 5A5), but mAb 5A5 immunoreactivity was observed on fibers of the IXth nerve, including a few that entered the taste buds. All or nearly all of the cells within the vallate taste buds were immunoreactive to mAb 2B8, whereas mAbs 9-OE and CO431 reacted with subsets of cells. The carbohydrates recognized by mAbs 2B8 and 9-OE were also abundantly expressed in the ducts and acini of the lingual salivary glands. Bilateral crush of the IXth nerve resulted in the loss of expression of all of these molecules from the gustatory epithelium. If cells of the taste bud express NCAM during their final stage(s) of differentiation, then NCAM could play a role(s) in the growth of gustatory axons toward their target epithelial cells and in the recognition between the nerve fibers and mature taste receptor cells, or among the taste bud cells themselves.
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Affiliation(s)
- D V Smith
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Ohio 45267-0528
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Barry MA, Savoy LD. Persistence and calcium-dependent ATPase staining of denervated fungiform taste buds in the hamster. Arch Oral Biol 1993; 38:5-15. [PMID: 7680199 DOI: 10.1016/0003-9969(93)90148-f] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Some fungiform taste buds in the hamster have been previously shown to persist for indefinite periods when deprived of their gustatory, chorda tympani (CT), innervation or both their CT and their trigeminal, lingual nerve, innervation (CT-L). The properties and numbers of persisting fungiform taste buds were examined 1 or 3 weeks after permanent CT or combined CT-L nerve cuts. The purpose was to reveal the status of taste buds at a time (3 weeks) when regenerating nerve fibres would normally be expected to reinnervate the epithelium. Denervated taste buds retain many normal characteristics including the pattern of histochemical staining for ectocalcium-dependent ATPase (Ca-ATPase). Taste-bud cells (including basal cells) have an intensely Ca-ATPase stained core surrounded by lightly stained peripheral cells. The Ca-ATPase stain was used to help identify and to define the size of the taste-bud core in denervated taste buds. Following CT-L or CT denervation most taste buds persisted; however the size of the taste-bud core was dramatically reduced. Fungiform taste buds differed in size based on their location in one of three tongue regions. The percentage decrease in size after denervation was also region specific and about the same for CT-L or CT cuts, suggesting that trigeminal fibres have no trophic effect on taste buds. However, trigeminal denervation caused a reduction in the number of persisting taste buds relative to CT denervation alone, which may be due to damage because of the loss of somatosensation.
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Affiliation(s)
- M A Barry
- Department of BioStructure and Function, School of Dental Medicine, University of Connecticut Health Center, Farmington 06030-3705
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9
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Gioglio L, Rapuzzi G, Quacci D. Ca++- and Na+, K+-ATPase activities in the fungiform papilla of the tongue ofRana Esculenta (Anura Ranidae). J Morphol 1991; 210:117-131. [DOI: 10.1002/jmor.1052100203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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10
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Robinson PP, Winkles PA. The number and distribution of fungiform papillae and taste buds after lingual nerve injuries in cats. Arch Oral Biol 1991; 36:885-91. [PMID: 1768229 DOI: 10.1016/0003-9969(91)90119-f] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Taste buds and the papillae that carry them are trophically dependent upon an intact innervation. The number and size of fungiform papillae and the number of taste buds on their surface were determined 3 months after crushing or sectioning the combined trunk of the chorda tympani and lingual nerves. After crushing there were fewer fungiform papillae but their size and number of taste buds were similar to that on the unoperated side. After nerve section there were considerably fewer recognizable fungiform papillae on the operated side and each carried a reduced number of taste buds.
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Affiliation(s)
- P P Robinson
- Department of Oral and Maxillofacial Surgery, School of Clinical Dentistry, University of Sheffield, U.K
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11
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Robinson PP, Winkles PA. Quantitative study of fungiform papillae and taste buds on the cat's tongue. Anat Rec (Hoboken) 1990; 226:108-11. [PMID: 2297077 DOI: 10.1002/ar.1092260112] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The number of fungiform papillae has been counted on the tongues of six adult cats and of kittens both at birth and aged 2 and 4 months. Papillae were sampled from different regions of the tongue, and their size and the number of taste buds they contained were determined using histological sections taken parallel to the tongue surface. There were approximately 250 fungiform papillae on the tongues of the adult cats, the papillae were most numerous at the tip of the tongue, and there was no significant difference between the number of papillae on each side. The size of the papillae increased from a mean maximum diameter of 0.28 mm at the tip of the tongue to 0.48 mm at the back; the mean number of taste buds increased correspondingly from 6.9 to 16.6. The kitten tongues had a number and distribution of fungiform papillae similar to that found in the adults. In the neonate, papillae were smaller and contained fewer taste buds; these parameters increased with the corresponding increase in tongue size in the 2- and 4-month-old kittens.
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Affiliation(s)
- P P Robinson
- Department of Physiology, Birmingham University Medical School, England
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12
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Kondo I, Watanabe Y, Ito Y, Hisada T. A histochemical study of APUD ability in the taste buds of experimentally induced zinc-deficient mice. JOURNAL OF ORAL PATHOLOGY 1987; 16:13-7. [PMID: 2435874 DOI: 10.1111/j.1600-0714.1987.tb00670.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
To explore the relationship between taste acuity and zinc deficiency, a histochemical investigation was made into the taste buds of mice fed a zinc-deficient diet. Nine weeks after the start of the diet, the average serum zinc level of the mice was 45% lower than that of a control group of mice. Moreover, growth was arrested significantly. Two-bottle preference tests revealed that the intake ratio of 10(-5) M quinine hydrochloride solutions had increased markedly in the zinc-deficient mice compared with the controls. The circumvallate taste buds showed no morphological changes. Fluorescent histochemical examination showed an uptake of a monoamine precursor (5-HTP) by the gustatory cells in the zinc-deficient mice after the 5-HTP treatment. Upon immunohistological examination, however, no serotonin immunoreactivity appeared in the gustatory cells of the zinc-deficient mice after the 5-HTP treatment. These results suggest that zinc-deficiency may induce hypogeusia and decrease the ability to transform a monoamine precursor to monoamine in the gustatory cells, albeit the monoamine precursor uptake ability is not affected.
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13
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Cano J, Lobera B, Rodriguez-Echandia EL, Machado A. Influence of innervation on the levels of noradrenaline and serotonin in the circumvallate papilla of the rat. JOURNAL OF NEUROBIOLOGY 1982; 13:1-7. [PMID: 7057176 DOI: 10.1002/neu.480130102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The levels and the distribution of monoamines within the rat circumvallate papilla have been studied. Noradrenaline was found in the connective tissue underlying the taste buds, whereas serotonin was located in the basal area of the gustatory epithelium but not inside the taste buds. Following denervation, noradrenaline levels decreased and serotonin levels increased. These results suggest that both neurotransmitters may have some mutual interaction in modulating transmission at the papilla.
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14
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Zalewski AA. The distribution of alkaline phosphatase activity in normal and cross-species regenerated rat and mouse taste buds. Anat Rec (Hoboken) 1979; 194:283-91. [PMID: 464327 DOI: 10.1002/ar.1091940210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Alkaline phosphatase (ALK Pase) activity can be detected histochemically in the taste buds of rats but not mice. Since taste buds develop, regenerate and are maintained under the influence(s) of the sensory nerve it was decided to study cross-species regenerated buds of these two animals to determine whether the nerve also regulated ALK Pase development in taste cells. Grafts of rats sensory ganglion and mouse tongue or mouse ganglion and rat tongue were combined in the anterior chamber of the eyes of immunologically-deficient nude mice and the cross-species buds that developed at 35 days were examined histochemically for ALK Pase. The results revealed that the rat nerve did not cause ALK Pase to appear in any buds found in mouse tongue grafts and that mouse nerve could support buds containing ALK Pase in rat tongue tissue. Because the cross-species regenerated buds were histochemically characteristic of those normally found in rat or mouse tongue, there is no evidence that the foreign nerve altered gene expression for ALK Pase in the target organ, and the action of the nerve on gustatory epithelium appears to be that of activation and maintenance.
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15
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Hui FW, Smith AA. Degeneration of taste buds and lateral line organs in the salamander treated with cholinolytic drugs. Exp Neurol 1972; 34:331-41. [PMID: 4335774 DOI: 10.1016/0014-4886(72)90179-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Der feinstrukturelle Nachweis der Acetylcholinesterase-Aktivit�t in den Geschmacksknospen der Papillae foliatae des Kaninchens. Eur Arch Otorhinolaryngol 1972. [DOI: 10.1007/bf00346638] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Iwayama T. Histochemical observations of alkaline phosphatase activity of the lingual epithelium after the suppression of salivation. HISTOCHEMIE. HISTOCHEMISTRY. HISTOCHIMIE 1971; 28:351-4. [PMID: 5159901 DOI: 10.1007/bf00702641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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18
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Murray RG, Murray A. Relations and possible significance of taste bud cells. CONTRIBUTIONS TO SENSORY PHYSIOLOGY 1971; 5:47-95. [PMID: 5117611 DOI: 10.1016/b978-0-12-151805-9.50008-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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19
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Fujimoto S, Murray RG. Fine structure of degeneration and regeneration in denervated rabbit vallate taste buds. Anat Rec (Hoboken) 1970; 168:383-413. [PMID: 5477183 DOI: 10.1002/ar.1091680306] [Citation(s) in RCA: 102] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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20
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Zalewski AA. Regeneration of taste buds in the lingual epithelium after excision of the vallate papilla. Exp Neurol 1970; 26:621-9. [PMID: 4244924 DOI: 10.1016/0014-4886(70)90154-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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21
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Iwayama T. Changes in the cell population of taste buds during degeneration and regeneration of their sensory innervation. ZEITSCHRIFT FUR ZELLFORSCHUNG UND MIKROSKOPISCHE ANATOMIE (VIENNA, AUSTRIA : 1948) 1970; 110:487-95. [PMID: 5516547 DOI: 10.1007/bf00330100] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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22
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Welsch U, Storch V. [Fine structure of the taste buds of catfish (Clarias batrachus (L) and Kryptopterus bicirrhis (Cuvier and Valenciennes)]. ZEITSCHRIFT FUR ZELLFORSCHUNG UND MIKROSKOPISCHE ANATOMIE (VIENNA, AUSTRIA : 1948) 1969; 100:552-9. [PMID: 5351195 DOI: 10.1007/bf00344375] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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23
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Nada O, Iwayama T. Histochemical observation on the phosphatase activities of the differentiating taste bud. Anat Rec (Hoboken) 1969; 165:61-6. [PMID: 4308834 DOI: 10.1002/ar.1091650107] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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