Induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal model
Abstract Diabetic-metabolic syndrome (MetS-D) has a high prevalence worldwide, in which an association with the rupture of the intestinal epithelium barrier function (IEBF) has been pointed out, but the functional and morphological properties are still not well understood. This study aimed to evalua...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Divulgação Científica
2024-04-01
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| Series: | Brazilian Journal of Medical and Biological Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2024000100626&lng=en&tlng=en |
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| author | F.J.W.S. Siqueira F.A.P. Rodrigues S.A. Ribeiro H.N. Veras F.C.S. Ferreira R.C.L. Siqueira A.A. dos Santos A. Havt A.A.M. Lima |
| author_facet | F.J.W.S. Siqueira F.A.P. Rodrigues S.A. Ribeiro H.N. Veras F.C.S. Ferreira R.C.L. Siqueira A.A. dos Santos A. Havt A.A.M. Lima |
| author_sort | F.J.W.S. Siqueira |
| collection | DOAJ |
| description | Abstract Diabetic-metabolic syndrome (MetS-D) has a high prevalence worldwide, in which an association with the rupture of the intestinal epithelium barrier function (IEBF) has been pointed out, but the functional and morphological properties are still not well understood. This study aimed to evaluate the impact of acute hyperglycemia diabetes on intestinal tight junction proteins, metabolic failure, intestinal ion and water transports, and IEBF parameters. Diabetes was induced in male Rattus norvegicus (200-310 g) with 0.5 mL of streptozotocin (70 mg/kg). Glycemic and clinical parameters were evaluated every 7 days, and intestinal parameters were evaluated on the 14th day. The MetS-D animals showed a clinical pattern of hyperglycemia, with increases in the area of villi and crypts, lactulose:mannitol ratio, myeloperoxidase (MPO) activity, and intestinal tissue concentrations of malondialdehyde (MDA), but showed a reduction in reduced glutathione (GSH) when these parameters were compared to the control. The MetS-D group had increased secretion of Na+, K+, Cl-, and water compared to the control group in ileal tissue. Furthermore, we observed a reduction in mRNA transcript of claudin-2, claudin-15, and NHE3 and increases of SGLT-1 and ZO-1 in the MetS-D group. These results showed that MetS-D triggered intestinal tissue inflammation, oxidative stress, complex alterations in gene regulatory protein transcriptions of intestinal transporters and tight junctions, damaging the IEBF and causing hydroelectrolyte secretion. |
| first_indexed | 2024-04-24T06:01:08Z |
| format | Article |
| id | doaj.art-91e01387db764ec7ba8b199f8e27fa7e |
| institution | Directory Open Access Journal |
| issn | 1414-431X |
| language | English |
| last_indexed | 2024-04-24T06:01:08Z |
| publishDate | 2024-04-01 |
| publisher | Associação Brasileira de Divulgação Científica |
| record_format | Article |
| series | Brazilian Journal of Medical and Biological Research |
| spelling | doaj.art-91e01387db764ec7ba8b199f8e27fa7e2024-04-23T07:37:30ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research1414-431X2024-04-015710.1590/1414-431x2024e13309Induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal modelF.J.W.S. Siqueirahttps://orcid.org/0009-0000-0571-2099F.A.P. Rodrigueshttps://orcid.org/0000-0001-9890-4232S.A. Ribeirohttps://orcid.org/0000-0001-8335-6317H.N. Verashttps://orcid.org/0000-0001-6700-5533F.C.S. Ferreirahttps://orcid.org/0000-0002-9501-870XR.C.L. Siqueirahttps://orcid.org/0000-0003-0533-9305A.A. dos Santoshttps://orcid.org/0000-0003-0912-3720A. Havthttps://orcid.org/0000-0002-4546-2976A.A.M. Limahttps://orcid.org/0000-0002-0299-1747Abstract Diabetic-metabolic syndrome (MetS-D) has a high prevalence worldwide, in which an association with the rupture of the intestinal epithelium barrier function (IEBF) has been pointed out, but the functional and morphological properties are still not well understood. This study aimed to evaluate the impact of acute hyperglycemia diabetes on intestinal tight junction proteins, metabolic failure, intestinal ion and water transports, and IEBF parameters. Diabetes was induced in male Rattus norvegicus (200-310 g) with 0.5 mL of streptozotocin (70 mg/kg). Glycemic and clinical parameters were evaluated every 7 days, and intestinal parameters were evaluated on the 14th day. The MetS-D animals showed a clinical pattern of hyperglycemia, with increases in the area of villi and crypts, lactulose:mannitol ratio, myeloperoxidase (MPO) activity, and intestinal tissue concentrations of malondialdehyde (MDA), but showed a reduction in reduced glutathione (GSH) when these parameters were compared to the control. The MetS-D group had increased secretion of Na+, K+, Cl-, and water compared to the control group in ileal tissue. Furthermore, we observed a reduction in mRNA transcript of claudin-2, claudin-15, and NHE3 and increases of SGLT-1 and ZO-1 in the MetS-D group. These results showed that MetS-D triggered intestinal tissue inflammation, oxidative stress, complex alterations in gene regulatory protein transcriptions of intestinal transporters and tight junctions, damaging the IEBF and causing hydroelectrolyte secretion.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2024000100626&lng=en&tlng=enDiabetic metabolic syndromeIntestinal epithelium barrier functionTight junctionsOxidative damageIon and water intestinal transports |
| spellingShingle | F.J.W.S. Siqueira F.A.P. Rodrigues S.A. Ribeiro H.N. Veras F.C.S. Ferreira R.C.L. Siqueira A.A. dos Santos A. Havt A.A.M. Lima Induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal model Brazilian Journal of Medical and Biological Research Diabetic metabolic syndrome Intestinal epithelium barrier function Tight junctions Oxidative damage Ion and water intestinal transports |
| title | Induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal model |
| title_full | Induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal model |
| title_fullStr | Induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal model |
| title_full_unstemmed | Induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal model |
| title_short | Induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal model |
| title_sort | induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal model |
| topic | Diabetic metabolic syndrome Intestinal epithelium barrier function Tight junctions Oxidative damage Ion and water intestinal transports |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2024000100626&lng=en&tlng=en |
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