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Catinelli BB, Rossignoli PS, Floriano JF, Carr AM, de Oliveira RG, Dos Santos NJ, Úbeda LCC, Spadella MA, Hallur RLS, Sobrevia L, Felisbino SL, Calderon IMP, Barbosa AMP, Rudge MVC. Reversal of diabetic-induced myopathy by swimming exercise in pregnant rats: a translational intervention study. Sci Rep 2022; 12:7375. [PMID: 35513450 PMCID: PMC9072313 DOI: 10.1038/s41598-022-10801-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/29/2022] [Indexed: 11/09/2022] Open
Abstract
Gestational diabetes mellitus (GDM) plus rectus abdominis muscle (RAM) myopathy predicts long-term urinary incontinence (UI). Atrophic and stiff RAM are characteristics of diabetes-induced myopathy (DiM) in pregnant rats. This study aimed to determine whether swimming exercise (SE) has a therapeutic effect in mild hyperglycemic pregnant rats model. We hypothesized that SE training might help to reverse RAM DiM. Mild hyperglycemic pregnant rats model was obtained by a unique subcutaneous injection of 100 mg/kg streptozotocin (diabetic group) or citrate buffer (non-diabetic group) on the first day of life in Wistar female newborns. At 90 days of life, the rats are mated and randomly allocated to remain sedentary or subjected to a SE protocol. The SE protocol started at gestational day 0 and consisted of 60 min/day for 6 days/week in a period of 20 days in a swim tunnel. On day 21, rats were sacrificed, and RAM was collected and studied by picrosirius red, immunohistochemistry, and transmission electron microscopy. The SE protocol increased the fiber area and diameter, and the slow-twitch and fast-twitch fiber area and diameter in the diabetic exercised group, a finding was also seen in control sedentary animals. There was a decreased type I collagen but not type III collagen area and showed a similar type I/type III ratio compared with the control sedentary group. In conclusion, SE during pregnancy reversed the RAM DiM in pregnant rats. These findings may be a potential protocol to consider in patients with RAM damage caused by GDM.
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Affiliation(s)
- Bruna B Catinelli
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Patrícia S Rossignoli
- Department of Physiotherapy and Occupational Therapy, School of Philosophy and Sciences, São Paulo State University (UNESP), Marília, São Paulo, Brazil
| | - Juliana F Floriano
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Aline M Carr
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Rafael G de Oliveira
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Nilton J Dos Santos
- Laboratory of Extracellular Matrix Biology, Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
- Department of Structural and Functional Biology, Institute of Biology (IB), UNICAMP, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Lara C C Úbeda
- University of Marília (UNIMAR), Marília, São Paulo, Brazil
| | | | - Raghavendra L S Hallur
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
- Pravara Institute of Medical Sciences (Deemed to be University), Loni, Rahata Taluk, Ahmednagar District, Maharashtra, 413736, India
| | - Luis Sobrevia
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
- Cellular and Molecular Physiology Laboratory (CMPL), Department of Obstetrics, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024, Santiago, Chile
- Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, 41012, Seville, Spain
- University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine and Biomedical Sciences, University of Queensland, Herston, QLD, 4029, Australia
- Division of Pathology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen (UMCG), 9713GZ, Groningen, The Netherlands
| | - Sérgio L Felisbino
- Laboratory of Extracellular Matrix Biology, Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Iracema M P Calderon
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Angélica M P Barbosa
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
- Department of Physiotherapy and Occupational Therapy, School of Philosophy and Sciences, São Paulo State University (UNESP), Marília, São Paulo, Brazil
| | - Marilza V C Rudge
- Postgraduate Program on Tocogynecology, Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
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Zhao R, Zhou Y, Shi H, Ye W, Lyu Y, Wen Z, Li R, Xu Y. Effect of Gestational Diabetes on Postpartum Depression-like Behavior in Rats and Its Mechanism. Nutrients 2022; 14:nu14061229. [PMID: 35334886 PMCID: PMC8953401 DOI: 10.3390/nu14061229] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 02/04/2023] Open
Abstract
Recent studies have reported a strong association between gestational diabetes mellitus (GDM) and postpartum depression (PPD), but little is known about the underlying physiological mechanism. In this study, a GDM rat model was used to evaluate the direct effect of GDM on PPD and to explore the mechanism. After parturition, the GDM dams were divided into two groups: blood glucose not recovered group (GH group) and blood glucose recovered group (GL group). Fasting plasma glucose (FPG), cortisol (COR) and serotonin (5-hydroxytryptamine, 5-HT) metabolism were continuously monitored during the lactation period, until postnatal day 21. PPD was evaluated by behavioral tests. At the endpoint, the expression of the key enzymes of Trp metabolic pathway in colon and brain tissues was analyzed by immunohistochemistry and western blot. The microbe composition of colonic contents was determined by 16S rDNA gene sequencing. The results showed that GDM induced postpartum depression-like behavior in rats. The HPA axis hormone did not show the typical stress state of depression, but the level of 5-HT decreased significantly in serum, prefrontal cortex and hippocampus, and the Kyn/Trp ratio increased significantly in serum and prefrontal cortex, implying the switch of the tryptophan (Trp) metabolism from the 5-HT pathway to the kynurenine (Kyn) pathway. The expression of Indoleamine 2,3-dioxygenase (IDO), a key rate-limiting enzyme in Kyn metabolism, was up-regulated in the colon and brain, which was an important reason for this switch. This switch was accelerated by a decrease in the expression of tryptophan hydroxylase (TPH), a key enzyme of the 5-HT production pathway, in the colon. GDM dams displayed significant changes in gut microbiome profiles, which were correlated with depression. The ratio of Firmicutes to Bacteroidetes decreased. Lactobacillus and Bacteroides were negatively correlated with 5-HT level and positively correlated with Kyn level, whereas Clostridium XlVa and Ruminococcus were positively correlated with 5-HT level. These results suggest that GDM disrupts both the Trp pathway and the composition of the gut microbiota, which provide a putative physiological basis for PPD.
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Affiliation(s)
- Runlong Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing 100083, China; (R.Z.); (Y.Z.); (H.S.); (W.Y.); (Y.L.); (Z.W.); (R.L.)
- PKUHSC—China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, No. 38 Xueyuan Road, Beijing 100083, China
| | - Yalin Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing 100083, China; (R.Z.); (Y.Z.); (H.S.); (W.Y.); (Y.L.); (Z.W.); (R.L.)
- PKUHSC—China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, No. 38 Xueyuan Road, Beijing 100083, China
| | - Hanxu Shi
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing 100083, China; (R.Z.); (Y.Z.); (H.S.); (W.Y.); (Y.L.); (Z.W.); (R.L.)
- PKUHSC—China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, No. 38 Xueyuan Road, Beijing 100083, China
| | - Wanyun Ye
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing 100083, China; (R.Z.); (Y.Z.); (H.S.); (W.Y.); (Y.L.); (Z.W.); (R.L.)
- PKUHSC—China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, No. 38 Xueyuan Road, Beijing 100083, China
| | - Ying Lyu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing 100083, China; (R.Z.); (Y.Z.); (H.S.); (W.Y.); (Y.L.); (Z.W.); (R.L.)
- PKUHSC—China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, No. 38 Xueyuan Road, Beijing 100083, China
| | - Zhang Wen
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing 100083, China; (R.Z.); (Y.Z.); (H.S.); (W.Y.); (Y.L.); (Z.W.); (R.L.)
- PKUHSC—China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, No. 38 Xueyuan Road, Beijing 100083, China
| | - Rui Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing 100083, China; (R.Z.); (Y.Z.); (H.S.); (W.Y.); (Y.L.); (Z.W.); (R.L.)
- PKUHSC—China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, No. 38 Xueyuan Road, Beijing 100083, China
| | - Yajun Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing 100083, China; (R.Z.); (Y.Z.); (H.S.); (W.Y.); (Y.L.); (Z.W.); (R.L.)
- PKUHSC—China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, No. 38 Xueyuan Road, Beijing 100083, China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, No. 38 Xueyuan Road, Beijing 100083, China
- Correspondence: ; Tel.: +86-010-82802552
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Zhou Y, Zhao R, Lyu Y, Shi H, Ye W, Tan Y, Li R, Xu Y. Serum and Amniotic Fluid Metabolic Profile Changes in Response to Gestational Diabetes Mellitus and the Association with Maternal-Fetal Outcomes. Nutrients 2021; 13:3644. [PMID: 34684645 PMCID: PMC8539410 DOI: 10.3390/nu13103644] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/15/2021] [Accepted: 10/15/2021] [Indexed: 11/25/2022] Open
Abstract
This study was designed to identify serum and amniotic fluid (AF) metabolic profile changes in response to gestational diabetes mellitus (GDM) and explore the association with maternal-fetal outcomes. We established the GDM rat models by combining a high-fat diet (HFD) with an injection of low-dose streptozotocin (STZ), detected the fasting plasma glucose (FPG) of pregnant rats in the second and third trimester, and collected AF and fetal rats by cesarean section on gestational day 19 (GD19), as well as measuring the weight and crown-rump length (CRL) of fetal rats. We applied liquid chromatography-tandem mass spectrometry (LC-MS/MS) for the untargeted metabolomics analyses of serum and AF samples and then explored their correlation with maternal-fetal outcomes via the co-occurrence network. The results showed that 91 and 68 metabolites were upregulated and 125 and 78 metabolites were downregulated in serum and AF samples exposed to GDM, respectively. In maternal serum, the obvious alterations emerged in lipids and lipid-like molecules, while there were great changes in carbohydrate and carbohydrate conjugates, followed by amino acids, peptides, and analogs in amniotic fluid. The altered pathways both in serum and AF samples were amino acid, lipid, nucleotide, and vitamin metabolism pathways. In response to GDM, changes in the steroid hormone metabolic pathway occurred in serum, and an altered carbohydrate metabolism pathway was found in AF samples. Among differential metabolites in two kinds of samples, there were 34 common biochemicals shared by serum and AF samples, and a mutual significant association existed. These shared differential metabolites were implicated in several metabolism pathways, including choline, tryptophan, histidine, and nicotinate and nicotinamide metabolism, and among them, N1-methyl-4-pyridone-3-carboxamide, 5'-methylthioadenosine, and kynurenic acid were significantly associated with both maternal FPG and fetal growth. In conclusion, serum and AF metabolic profiles were remarkably altered in response to GDM. N1-Methyl-4-pyridone-3-carboxamide, 5'-methylthioadenosine, and kynurenic acid have the potential to be taken as biomarkers for maternal-fetal health status of GDM. The common and inter-related differential metabolites both in the serum and AF implied the feasibility of predicting fetal health outcomes via detecting the metabolites in maternal serum exposed to GDM.
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Affiliation(s)
- Yalin Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Beijing 100083, China; (Y.Z.); (R.Z.); (Y.L.); (H.S.); (W.Y.); (Y.T.); (R.L.)
- PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, NO.38 Xueyuan Road, Beijing 100083, China
| | - Runlong Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Beijing 100083, China; (Y.Z.); (R.Z.); (Y.L.); (H.S.); (W.Y.); (Y.T.); (R.L.)
- PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, NO.38 Xueyuan Road, Beijing 100083, China
| | - Ying Lyu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Beijing 100083, China; (Y.Z.); (R.Z.); (Y.L.); (H.S.); (W.Y.); (Y.T.); (R.L.)
- PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, NO.38 Xueyuan Road, Beijing 100083, China
| | - Hanxu Shi
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Beijing 100083, China; (Y.Z.); (R.Z.); (Y.L.); (H.S.); (W.Y.); (Y.T.); (R.L.)
- PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, NO.38 Xueyuan Road, Beijing 100083, China
| | - Wanyun Ye
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Beijing 100083, China; (Y.Z.); (R.Z.); (Y.L.); (H.S.); (W.Y.); (Y.T.); (R.L.)
- PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, NO.38 Xueyuan Road, Beijing 100083, China
| | - Yuwei Tan
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Beijing 100083, China; (Y.Z.); (R.Z.); (Y.L.); (H.S.); (W.Y.); (Y.T.); (R.L.)
- PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, NO.38 Xueyuan Road, Beijing 100083, China
| | - Rui Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Beijing 100083, China; (Y.Z.); (R.Z.); (Y.L.); (H.S.); (W.Y.); (Y.T.); (R.L.)
- PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, NO.38 Xueyuan Road, Beijing 100083, China
| | - Yajun Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, NO.38 Xueyuan Road, Beijing 100083, China; (Y.Z.); (R.Z.); (Y.L.); (H.S.); (W.Y.); (Y.T.); (R.L.)
- PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, NO.38 Xueyuan Road, Beijing 100083, China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, NO.38 Xueyuan Road, Beijing 100083, China
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Martins MG, Cruz AGD, Oliveira GPD, Woodside B, Horta-Júnior JDADCE, Kiss ACI. Effects of snack intake during pregnancy and lactation on reproductive outcome in mild hyperglycemic rats. Physiol Behav 2021; 240:113544. [PMID: 34332976 DOI: 10.1016/j.physbeh.2021.113544] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/23/2021] [Accepted: 07/25/2021] [Indexed: 11/17/2022]
Abstract
Metabolic disorders, like diabetes, as well as maternal diet, alter nutrient availability in utero, inducing adaptations in the offspring. Whether the effects of maternal hyperglycemia are modulated by diet, however, has yet to be explored. In the current study, we examined this issue by giving females rats, treated neonatally with STZ to induce mild hyperglycemia, and control littermates either ad libitum access to standard chow (Control n = 17; STZ n = 16) or standard chow and snacks (Control-snack n = 18; STZ-snack n = 19) (potato chips and a red fruit-flavored sucrose syrup solution 1.5%) throughout pregnancy and lactation. We hypothesized that the maternal glucose intolerance typically seen in female rats treated neonatally with STZ would be exacerbated by snack intake, and that the combination of snack intake and STZ treatment would lead to alterations in maternal behavior and offspring development. Maternal body weight and food intake were measured daily through pregnancy and lactation and litter weight throughout lactation. At birth, litter size, offspring weight, body length, and anogenital distance were obtained and offspring were classified according to their weight. Measures of nursing and retrieval behavior, as well as exploration in the open field and the elevated plus-maze were also recorded. As predicted, snack intake tended to aggravate the glucose intolerance of STZ-treated rats during pregnancy. Both Control and STZ-treated females that had access to snacks ate more calories and fat, but less carbohydrate and protein than females having access to chow alone. Overall, STZ-treated dams gave birth to fewer pups. Chow-fed STZ females gave birth to a greater proportion of large for pregnancy age pups, whereas dams in the Control-snack group gave birth to a greater proportion of small pups. The birth weight classification of pups born to STZ-snack rats, however, resembled that of the Control chow-fed females. Although all litters gained weight during lactation, litters from snack-fed dams gained less weight regardless of maternal hyperglycemia and did not show catch-up growth by weaning. Overall, STZ rats spent more time nest building, whereas the average inter milk ejection interval was higher in snack-fed females. STZ-snack dams retrieved the complete litter faster than dams in the other groups. Together, these data suggest that when mild hyperglycemic females are given access to snacks throughout pregnancy and lactation their intake is similar to that of Control females given snack access. The combination of hyperglycemia and snack access tended to decrease glucose tolerance in pregnancy, and normalized birth weight classification, but produced few other effects that were not seen as a function of snack intake or hyperglycemia alone. Since birth weight is a strong predictor of health issues, future studies will further investigate offspring behavioral and metabolic outcomes later in life.
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Affiliation(s)
- Marina Galleazzo Martins
- Department of Physiology, Institute of Biosciences of the University of São Paulo (IB/USP), Rua do Matão, trav. 14, 321, Cidade Universitária, São Paulo, São Paulo, 05508-090, Brazil; São Paulo State University (Unesp), Institute of Biosciences, Department of Structural and Functional Biology, Rua Prof. Dr. Antonio Celso Wagner Zanin, s/n, Botucatu, São Paulo, 18618-689, Brazil.
| | - Alessandra Gonçalves da Cruz
- Department of Physiology, Institute of Biosciences of the University of São Paulo (IB/USP), Rua do Matão, trav. 14, 321, Cidade Universitária, São Paulo, São Paulo, 05508-090, Brazil; São Paulo State University (Unesp), Institute of Biosciences, Department of Structural and Functional Biology, Rua Prof. Dr. Antonio Celso Wagner Zanin, s/n, Botucatu, São Paulo, 18618-689, Brazil
| | - Giovana Pereira de Oliveira
- Department of Physiology, Institute of Biosciences of the University of São Paulo (IB/USP), Rua do Matão, trav. 14, 321, Cidade Universitária, São Paulo, São Paulo, 05508-090, Brazil; São Paulo State University (Unesp), Institute of Biosciences, Department of Structural and Functional Biology, Rua Prof. Dr. Antonio Celso Wagner Zanin, s/n, Botucatu, São Paulo, 18618-689, Brazil
| | - Barbara Woodside
- Center for Studies in Behavioral Neurobiology, Psychology Department, Concordia University, 7141 Sherbrooke St. W., Montreal, Quebec, Canada H4B 1R6
| | - José de Anchieta de Castro E Horta-Júnior
- São Paulo State University (Unesp), Institute of Biosciences, Department of Structural and Functional Biology, Rua Prof. Dr. Antonio Celso Wagner Zanin, s/n, Botucatu, São Paulo, 18618-689, Brazil
| | - Ana Carolina Inhasz Kiss
- Department of Physiology, Institute of Biosciences of the University of São Paulo (IB/USP), Rua do Matão, trav. 14, 321, Cidade Universitária, São Paulo, São Paulo, 05508-090, Brazil; São Paulo State University (Unesp), Institute of Biosciences, Department of Structural and Functional Biology, Rua Prof. Dr. Antonio Celso Wagner Zanin, s/n, Botucatu, São Paulo, 18618-689, Brazil
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A treatment with a boiled aqueous extract of Hancornia speciosa Gomes leaves improves the metabolic status of streptozotocin-induced diabetic rats. BMC Complement Med Ther 2020; 20:114. [PMID: 32303220 PMCID: PMC7164147 DOI: 10.1186/s12906-020-02919-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 04/07/2020] [Indexed: 02/06/2023] Open
Abstract
Abstract Background Hancornia speciosa is usually used in Brazilian folk medicine to treat diabetes. The hypothesis of the present study is that this medicinal plant exerts beneficial effects on hyperglycemia, preventing diabetic complications. Therefore, the aim of this study was to evaluate the treatment effect of the aqueous extract of H. speciosa leaves on metabolic parameters of diabetic rats. Methods The H. speciosa extract (400 mg/Kg) was administered to both nondiabetic and severely diabetic female Wistar rats by gavage. The Oral Glucose Tolerance Test was performed and the area under the curve (AUC) was estimated on day 17 of pregnancy. After 21 days of treatment, the animals were anesthetized and killed to obtain organ weights. Blood samples were collected for an analysis of serum biochemical parameters. Results After treatment with the H. speciosa extract, the parameters of nondiabetic rats remained unchanged. In treated diabetic rats, glycemia, AUC, dyslipidemia parameters, and relative organ weights were decreased compared with nontreated diabetic rats. Severely diabetic rats showed decompensated hyperglycemia, polydipsia, hyperphagia and dyslipidemia. However, the aqueous extract of H. speciosa leaves decreased diabetes complications (indicating a lack of toxicity), reduced blood glucose levels, and exerced lipid-lowering effects. Conclusion Based on or findings, the H. speciosa leaf extract may be a safe and promising candidate treatment for diabetes and other diseases.
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Rudge MVC, Souza FP, Abbade JF, Hallur RLS, Marcondes JPC, Piculo F, Marini G, Vesentini G, Thabane L, Witkin SS, Calderon IMP, Barbosa AMP, Rudge MV, Barbosa AMP, Calderon IMP, Souza FP, Abbade JF, Hallur LSR, Piculo F, Marini G, Vesentini G, Thabane L, Palma MS, Graeff CFO, Arni RK, Herculano RD, Salvadori DF, Mateus S, Dal Pai Silva M, Magalhães CG, Costa RA, Lima SAM, Felisbino SL, Barbosa W, Atallah A, Girão MJB, Di Bella Z, Uchoa SM, Payão S, Hijas A, Berghman B, De Bie R, Sobrevia L, Junginger B, Alves FCB, Rossignoli PS, Prudencio CB, Orlandi MIG, Gonçalves MI, Nunes SK, Catinelli BB, Quiroz S, Sarmento BV, Pinheiro FA, Sartorão CI, Lucas RR, Reyes DRA, Quiroz SBCV, Enriquez EMA, Oliveira RG, Floriano JF, Marcondes JPC, Barneze S, Dangió TD, Pascon T, Rossignoli P, Freitas JV, Takano L, Reis F, Caldeirão TD, Fernandes JN, Carr AM, Gaitero MVC, Corrente JE, Nunes HRC, Candido AF, Costa SMB, Dangió TD, Pascon T, Melo JVF, Takano L, Reis FVDS, Caldeirão TD, Carr AM, Garcia GA, Rabadan GB, Bassin HCM, Suyama KS, Damasceno LN, Takemoto MLS, Menezes MD, Bussaneli DG, Nogueira VKC, Lima PR, Lourenço IO, Marostica de Sá J, Megid RA, Caruso IP, Rasmussen LT, Prata GM, Piculo F, Vesentini G, Arantes MA, Ferraz GAR, Camargo LP, Kron MR, Corrente JE, Nunes HRC. Study protocol to investigate biomolecular muscle profile as predictors of long-term urinary incontinence in women with gestational diabetes mellitus. BMC Pregnancy Childbirth 2020; 20:117. [PMID: 32075598 PMCID: PMC7031907 DOI: 10.1186/s12884-020-2749-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 01/17/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pelvic floor muscles (PFM) and rectus abdominis muscles (RAM) of pregnant diabetic rats exhibit atrophy, co-localization of fast and slow fibers and an increased collagen type I/III ratio. However, the role of similar PFM or RAM hyperglycemic-related myopathy in women with gestational diabetes mellitus (GDM) remains poorly investigated. This study aims to assess the frequency of pelvic floor muscle disorders and pregnancy-specific urinary incontinence (PS-UI) 12 months after the Cesarean (C) section in women with GDM. Specifically, differences in PFM/RAM hyperglycemic myopathy will be evaluated. METHODS The Diamater is an ongoing cohort study of four groups of 59 pregnant women each from the Perinatal Diabetes Research Centre (PDRC), Botucatu Medical School (FMB)-UNESP (São Paulo State University), Brazil. Diagnosis of GDM and PS-UI will be made at 24-26 weeks, with a follow-up at 34-38 weeks of gestation. Inclusion in the study will occur at the time of C-section, and patients will be followed at 24-48 h, 6 weeks and 6 and 12 months postpartum. Study groups will be classified as (1) GDM plus PS-UI; (2) GDM without PS-UI; (3) Non-GDM plus PS-UI; and (4) Non-GDM without PS-UI. We will analyze relationships between GDM, PS-UI and hyperglycemic myopathy at 12 months after C-section. The mediator variables to be evaluated include digital palpation, vaginal squeeze pressure, 3D pelvic floor ultrasound, and 3D RAM ultrasound. RAM samples obtained during C-section will be analyzed for ex-vivo contractility, morphological, molecular and OMICS profiles to further characterize the hyperglycemic myopathy. Additional variables to be evaluated include maternal age, socioeconomic status, educational level, ethnicity, body mass index, weight gain during pregnancy, quality of glycemic control and insulin therapy. DISCUSSION To our knowledge, this will be the first study to provide data on the prevalence of PS-UI and RAM and PFM physical and biomolecular muscle profiles after C-section in mothers with GDM. The longitudinal design allows for the assessment of cause-effect relationships between GDM, PS-UI, and PFMs and RAMs myopathy. The findings may reveal previously undetermined consequences of GDM.
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Affiliation(s)
- Marilza V C Rudge
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), CEP18618-687, Sao Paulo, Brazil.
| | - Fátima P Souza
- Physics Department, Institute of Biosciences, Letters and Exact Sciences, Multiuser Center for Biomolecular Innovation, UNESP-São Paulo State University, Sao Paulo, Brazil
| | - Joelcio F Abbade
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), CEP18618-687, Sao Paulo, Brazil
| | - Raghavendra L S Hallur
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), CEP18618-687, Sao Paulo, Brazil
| | - João Paulo C Marcondes
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), CEP18618-687, Sao Paulo, Brazil
| | - Fernanda Piculo
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), CEP18618-687, Sao Paulo, Brazil.,Physiotherapy Department, Faculdades Integradas de Bauru, FIB, Sao Paulo, Brazil
| | - Gabriela Marini
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), CEP18618-687, Sao Paulo, Brazil.,Universidade do Sagrado Coração (USC), Jardim Brasil, Bauru, Sao Paulo, Brazil
| | - Giovana Vesentini
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), CEP18618-687, Sao Paulo, Brazil
| | - Lehana Thabane
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.,Biostatistics Unit, Father Sean O'Sullivan Research Centre, St Joseph's Healthcare-Hamilton, Hamilton, ON, Canada
| | - Steven S Witkin
- Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, USA.,Institute of Tropical Medicine, University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - Iracema M P Calderon
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), CEP18618-687, Sao Paulo, Brazil
| | - Angélica M P Barbosa
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), CEP18618-687, Sao Paulo, Brazil.,School of Philosophy and Sciences, Department of Physiotherapy and Occupational Therapy, UNESP-São Paulo State University, Marília, Sao Paulo, Brazil
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Laurino LF, Viroel FJM, Caetano E, Spim S, Pickler TB, Rosa-Castro RM, Vasconcelos EA, Jozala AF, Hataka A, Grotto D, Gerenutti M. Lentinus edodes Exposure before and after Fetus Implantation: Materno-Fetal Development in Rats with Gestational Diabetes Mellitus. Nutrients 2019; 11:nu11112720. [PMID: 31717560 PMCID: PMC6893821 DOI: 10.3390/nu11112720] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/04/2019] [Accepted: 11/07/2019] [Indexed: 12/27/2022] Open
Abstract
Background: The presence of β-glucans and phenolic compounds in Lentinus edodes suggests this mushroom can be used as a nutritional supplement. Two gestational conditions (before and after fetus implantation) were evaluated, and Lentinus edodes exposure was performed in diabetes mellitus rat model induced by streptozotocin in pre-clinical tests. Methods: On the 20th day of pregnancy, cesarean sections were performed. Blood was collected for biochemical, hematologic parameters and oxidative stress biomarkers. Placenta and amniotic fluid were collected, and fetuses were analyzed through morphological evaluation. Results: The mushroom did not reduce the severe hyperglycemia of the mother-concept but promoted an increase in maternal insulin levels; reduced the levels of alanine aminotransferase, and aspartate aminotransferase, triglyceride and total cholesterol; protected the animals from post-implantation losses. Liver damage induced by streptozotocin was reversed in experimental groups. Conclusions: Lentinus edodes mushroom has antioxidant properties that can minimize the damage caused by gestational diabetes mellitus.
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Affiliation(s)
- Leticia F. Laurino
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
| | - Fabia J. M. Viroel
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
| | - Erika Caetano
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
| | - Sara Spim
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
| | - Thaisa B. Pickler
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
| | - Raquel M. Rosa-Castro
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
| | - Edilma Albuquerque Vasconcelos
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
| | - Angela F. Jozala
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
| | - Alessandre Hataka
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, São Paulo 18610-307, Brazil
| | - Denise Grotto
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
- Correspondence: ; Tel.: +55-15-21017104
| | - Marli Gerenutti
- University of Sorocaba, Sorocaba-SP 18023-000, Brazil; (L.F.L.); (F.J.M.V.); (E.C.); (S.S.); (T.B.P.); (R.M.R.-C.); (E.A.V.); (A.F.J.); (M.G.)
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8
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Sonoda S, Yoshimura M, Ueno H, Nishimura H, Nishimura K, Tanaka K, Motojima Y, Saito R, Maruyama T, Hashimoto H, Okada Y, Tanaka Y, Ueta Y. Expression of the genes encoding hypothalamic feeding-related neuropeptides in the streptozotocin-induced diabetic rats with variable hyperglycemia and hyperphagia. Neuropeptides 2019; 75:34-40. [PMID: 30928158 DOI: 10.1016/j.npep.2019.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 11/22/2022]
Affiliation(s)
- Satomi Sonoda
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan; First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Mitsuhiro Yoshimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Hiromichi Ueno
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Haruki Nishimura
- Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Kazuaki Nishimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Kentaro Tanaka
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Yasuhito Motojima
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan; Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Reiko Saito
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Takashi Maruyama
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Hirofumi Hashimoto
- Department of Regulatory Physiology, Dokkyo Medical University, Tochigi 321-0293, Japan
| | - Yosuke Okada
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Yoshiya Tanaka
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Yoichi Ueta
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan.
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Singh A, Castillo HA, Brown J, Kaslin J, Dwyer KM, Gibert Y. High glucose levels affect retinal patterning during zebrafish embryogenesis. Sci Rep 2019; 9:4121. [PMID: 30858575 PMCID: PMC6411978 DOI: 10.1038/s41598-019-41009-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 02/12/2019] [Indexed: 02/08/2023] Open
Abstract
Maternal hyperglycaemia has a profound impact on the developing foetus and increases the risk of developing abnormalities like obesity, impaired glucose tolerance and insulin secretory defects in the post-natal life. Increased levels of glucose in the blood stream due to diabetes causes visual disorders like retinopathy. However, the impact of maternal hyperglycaemia due to pre-existing or gestational diabetes on the developing foetal retina is unknown. The aim of this work was to study the effect of hyperglycaemia on the developing retina using zebrafish as a vertebrate model. Wild-type and transgenic zebrafish embryos were exposed to 0, 4 and 5% D-Glucose in a pulsatile manner to mimic the fluctuations in glycaemia experienced by the developing foetus in pregnant women with diabetes. The zebrafish embryos displayed numerous ocular defects associated with altered retinal cell layer thickness, increased presence of macrophages, and decreased number of Müeller glial and retinal ganglion cells following high-glucose exposure. We have developed a model of gestational hyperglycaemia using the zebrafish embryo to study the effect of hyperglycaemia on the developing embryonic retina. The data suggests that glucose exposure is detrimental to the development of embryonic retina and the legacy of this exposure may extend into adulthood. These data suggest merit in retinal assessment in infants born to mothers with pre-existing and gestational diabetes both in early and adult life.
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Affiliation(s)
- Amitoj Singh
- Deakin University, School of Medicine, Faculty of Health, 75 Pigdons Road, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Hozana Andrade Castillo
- Monash University, Australian Regenerative Medicine Institute, 23 Innovation Walk, Clayton, VIC, 3800, Australia
- Brazilian Biosciences National Laboratory, Brazilian Centre for Research in Energy and Materials, Campinas, Brazil
| | - Julie Brown
- Deakin University, School of Medicine, Faculty of Health, 75 Pigdons Road, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Jan Kaslin
- Monash University, Australian Regenerative Medicine Institute, 23 Innovation Walk, Clayton, VIC, 3800, Australia
| | - Karen M Dwyer
- Deakin University, School of Medicine, Faculty of Health, 75 Pigdons Road, Waurn Ponds, Geelong, VIC, 3216, Australia
| | - Yann Gibert
- Deakin University, School of Medicine, Faculty of Health, 75 Pigdons Road, Waurn Ponds, Geelong, VIC, 3216, Australia.
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Increased O-Linked N-Acetylglucosamine Modification of NF-ΚB and Augmented Cytokine Production in the Placentas from Hyperglycemic Rats. Inflammation 2018; 40:1773-1781. [PMID: 28688099 DOI: 10.1007/s10753-017-0620-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Inflammation as a result of NF-κB activation may result from the classical (canonical) pathway, with disconnection of the IκB inhibitor and subsequent nuclear translocation or, alternatively, by post-translational modifications of modulatory proteins or NF-κB subunits (non-canonical pathway). We hypothesized that hyperglycemia-induced increased glycosylation with O-linked N-acetylglucosamine (O-GlcNAc) of NF-κB in placental tissue leads to augmented production of pro-inflammatory cytokines, culminating in placental dysfunction and fetal restriction growth. Single injections of streptozotocin (40 mg/kg) or vehicle were used to induce hyperglycemia or normoglycemia, respectively, in female Wistar rats. After 3 days, rats were mated and pregnancy confirmed. Placental tissue was collected at 21 days of pregnancy. Placental expression of p65 subunit was similar between groups. However, nuclear translocation of p65 subunit, showing greater activation of NF-κB, was increased in the hyperglycemic group. Reduced expression of IκB and increased expression of phosphorylated IκBSer32 were observed in the placenta from hyperglycemic rats, demonstrating increased classical NF-κB activation. Augmented modification of O-GlcNAc-modified proteins was found in the placenta from hyperglycemic rats and p65 subunit was a key O-GlcNAc target, as demonstrated by immunoprecipitation. Tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) expressions were increased in the placenta from hyperglycemic rats. Furthermore, placental weight was increased, whereas fetal weight was decreased under hyperglycemic conditions. TNF-α and IL-6 demonstrated positive correlations with placental weight and negative correlations with fetal weight and placental efficiency. Therefore, under hyperglycemic conditions, a modulatory role of O-GlcNAc in NF-κB activity was demonstrated in the placenta, contributing to fetal and placental dysfunction due to inflammatory cytokine exacerbation.
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11
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Hauschildt AT, Corá LA, Volpato GT, Sinzato YK, Damasceno DC, Américo MF. Mild diabetes: long-term effects on gastric motility evaluated in rats. Int J Exp Pathol 2018; 99:29-37. [PMID: 29479759 PMCID: PMC5917388 DOI: 10.1111/iep.12262] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 01/04/2018] [Indexed: 12/22/2022] Open
Abstract
Moderate hyperglycaemic levels seem to be related to abnormal gastric motility in diabetes mellitus. However, experimental models designed to evaluate the relationship between motility and diabetes over time are not yet well established. Our objective was to investigate the long-term effects of mild diabetes on gastric motility in rats. Newborn male rats received streptozotocin (mild diabetes groups - MD) or vehicle (control groups - C), and both groups were evaluated after 3 (C3 and MD3) and 6 months (C6 and MD6) postinduction. Mild diabetic animals (MD3 and MD6) showed moderately elevated blood glucose and decreased insulin levels compared with control (C3 and C6). Insulin secretion was enhanced in MD6 compared with MD3, most likely due to partial β-cell regeneration indicated by HOMA-β. In HOMA-IR, it was noticed that MD6 animals had impaired insulin response compared with MD3. Gastric emptying was faster, amplitude of contraction was stronger in MD6 compared with MD3, and in both groups, the differences were significant when compared with control animals. A significant abnormal rhythmic index was calculated for the mild diabetic groups, despite unchanged mean frequency of contraction. In conclusion, despite increased insulin levels over time, constant levels of moderate hyperglycaemia are also related to abnormal gastric motility and impairment of gastric function.
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Affiliation(s)
| | - Luciana A. Corá
- Alagoas State University of Health Sciences – UNCISALMaceió/ALBrazil
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12
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Bequer L, Gómez T, Molina JL, Álvarez A, Chaviano C, Clapés S. Experimental diabetes impairs maternal reproductive performance in pregnant Wistar rats and their offspring. Syst Biol Reprod Med 2017; 64:60-70. [PMID: 29156994 DOI: 10.1080/19396368.2017.1395928] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The aim of this study was to determine the effect of mild hyperglycemia on metabolism during pregnancy, the maternal reproductive performance, and the characteristics of the offspring in neonatal mild diabetic-induced Wistar rats. The experimental diabetes model was generated by neonatal streptozotocin administration (100 mg of streptozotocin/Kg bw/sc) in female Wistar rats. At adulthood, the control and diabetic group were mated. At the 20th day of gestation, a maternal and fetal blood sample were collected for biochemical measurement. The maternal livers, fetal livers, and placenta were removed for oxidative stress measurements. Maternal reproductive outcomes and fetal and placental morphometric measurements were analyzed. The fetuses were classified as small, appropriate, and large for pregnancy age, and examined for the presence of external anomalies. The diabetic group showed mild hyperglycemia, altered glucose tolerance, increased total cholesterol, triglycerides, and hemoglobin A1c during pregnancy. At the 20th day of gestation the diabetic mothers presented increased reabsorptions and embryonic losses before and after implantation, reduced corpora lutea number, litter size, implantation sites, live fetuses, and decreased efficiency of implantation rate. Similarly, the offspring showed reduced fetal, craniofacial, and placental dimensions, in addition to a higher proportion of small fetuses for pregnancy age. Mild hyperglycemia during pregnancy did not generate marked oxidative stress in the mother, and in fetal liver and placenta decreased antioxidant activity was evident by significant consumption of reduced glutathione. Mild diabetes led to a negative impact on maternal reproductive performance and characteristics of the offspring. This experimental model reproduced maternal and fetal outcomes of pregnant rats presenting controlled diabetes. ABBREVIATIONS bw: body weight; sc: subcutaneous; DM: diabetes mellitus; STZ: streptozotocin; OGTT: oral glucose tolerance test; ITT: insulin tolerance test; GSH: glutathione; MDA: malondialdehyde; AOPPs: advanced oxidation protein products; TBARs: thiobarbituric acid reaction; SPA: small for pregancy age; APA: appropriate for pregnancy age; LPG: large for pregnancy age; ROS: reactive oxygen species.
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Affiliation(s)
- Leticia Bequer
- a Biomedical Research Center, Medical College of Villa Clara , Cuba
| | - Tahiry Gómez
- a Biomedical Research Center, Medical College of Villa Clara , Cuba
| | - José L Molina
- a Biomedical Research Center, Medical College of Villa Clara , Cuba
| | - Alain Álvarez
- a Biomedical Research Center, Medical College of Villa Clara , Cuba
| | - Claudia Chaviano
- a Biomedical Research Center, Medical College of Villa Clara , Cuba
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13
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Chen Y, Lv P, Du M, Liang Z, Zhou M, Chen D. Increased retinol-free RBP4 contributes to insulin resistance in gestational diabetes mellitus. Arch Gynecol Obstet 2017; 296:53-61. [PMID: 28528355 DOI: 10.1007/s00404-017-4378-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 04/12/2017] [Indexed: 01/09/2023]
Abstract
PURPOSE Retinol-binding protein 4 (RBP4) is a circulating retinol transporter that is strongly associated with insulin resistance. The aim of this study was to evaluate the RBP4 and retinol level in rat model of gestational diabetes mellitus and the relationship between retinol-free RBP4 (apo-RBP4), retinol-bound RBP4 (holo-RBP4) and insulin resistance. METHODS Pregnant rats were administered streptozotocin to induce diabetes. The RBP4 and retinol levels were evaluated in GDM and normal pregnant rats. After then, normal pregnant rats were divided into two groups to receive either apo-RBP4 or vehicle injection. The metabolic parameters and insulin signaling in adipose tissue, skeletal muscle and liver were determined in apo-RBP4 and control groups. Primary human adipocytes were cultured in vitro with different proportions of apo-RBP4 and holo-RBP4 for 24 h. The interaction between RBP4 and STRA6 was assessed by co-immunoprecipitation, and the expression of JAK-STAT pathway and insulin signaling were detected by Western blotting and immunofluorescence. RESULTS We found increases in serum RBP4 levels and the RBP4:retinol ratio but not in the retinol levels in GDM rats. Exogenous apo-RBP4 injection attenuated insulin sensitivity in pregnant rats. In vitro, a prolonged interaction between RBP4 and STRA6 was observed when apo-RBP4 was present. In response to increased apo-RBP4 levels, cells showed elevated activation of the JAK2/STAT5 cascade and SOCS3 expression, decreased phosphorylation of IR and IRS1, and attenuated GLUT4 translocation and glucose uptake upon insulin stimulation. CONCLUSION Apo-RBP4 is a ligand that activates the STRA6 signaling cascade, inducing insulin resistance in GDM.
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Affiliation(s)
- Yanmin Chen
- Obstetrical Department, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, Zhejiang, China
| | - Ping Lv
- Department of Obstetrics and Gynecology, Shengzhou People's Hospital, Hangzhou, 312400, Zhejiang, China
| | - Mengkai Du
- Obstetrical Department, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, Zhejiang, China
| | - Zhaoxia Liang
- Obstetrical Department, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, Zhejiang, China
| | - Menglin Zhou
- Obstetrical Department, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, Zhejiang, China
| | - Danqing Chen
- Obstetrical Department, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, Zhejiang, China.
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14
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Liver mitochondrial membrane fluidity at early development of diabetes and its correlation with the respiration. J Bioenerg Biomembr 2017; 49:231-239. [DOI: 10.1007/s10863-017-9700-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 03/15/2017] [Indexed: 12/23/2022]
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15
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Extracerebral Dysfunction in Animal Models of Autism Spectrum Disorder. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2017; 224:159-187. [PMID: 28551756 DOI: 10.1007/978-3-319-52498-6_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Genetic factors might be largely responsible for the development of autism spectrum disorder (ASD) that alone or in combination with specific environmental risk factors trigger the pathology. Multiple mutations identified in ASD patients that impair synaptic function in the central nervous system are well studied in animal models. How these mutations might interact with other risk factors is not fully understood though. Additionally, how systems outside of the brain are altered in the context of ASD is an emerging area of research. Extracerebral influences on the physiology could begin in utero and contribute to changes in the brain and in the development of other body systems and further lead to epigenetic changes. Therefore, multiple recent studies have aimed at elucidating the role of gene-environment interactions in ASD. Here we provide an overview on the extracerebral systems that might play an important associative role in ASD and review evidence regarding the potential roles of inflammation, trace metals, metabolism, genetic susceptibility, enteric nervous system function and the microbiota of the gastrointestinal (GI) tract on the development of endophenotypes in animal models of ASD. By influencing environmental conditions, it might be possible to reduce or limit the severity of ASD pathology.
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16
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Corvino SB, Volpato GT, Macedo NCD, Sinzato YK, Rudge MVC, Damasceno DC. Physiological and biochemical measurements before, during and after pregnancy of healthy rats. Acta Cir Bras 2016; 30:668-74. [PMID: 26560424 DOI: 10.1590/s0102-865020150100000003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 09/14/2015] [Indexed: 02/04/2023] Open
Abstract
PURPOSE To analyze the physiological and biochemical measurements before, during and after pregnancy of healthy rats. METHODS Wistar adult females rats (n=8) were weighed and blood samples were obtained before, during and after pregnancy for biochemical determinations, chow intake, water consumption and milk production were evaluated. At day 10 postpartum, the rats were killed for weighing of organs and adipose tissues. RESULTS The results showed increase in body weight, serum insulin and ingestion of water and chow. At day 17 pregnancy, presented normal values in the OGTT. At days 7, 14 and 20 of pregnancy, there was increase in triglyceride levels. At term pregnancy, there was weight gain due to fetal growth. In the postpartum period presented reduced blood glucose levels. The glycemic means were reduced during and after pregnancy compared to after pregnancy. The triglyceride concentrations were increased before and during pregnancy in relation to after pregnancy. The total cholesterol levels presented no changes. CONCLUSION The use of experimental animals is suitable for evaluation of metabolic changes because the profile of answers found in this study was similar to human profile, showing the relevance of translational research to better understand the pathophysiological mechanisms and possible treatment for diseases.
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Affiliation(s)
| | - Gustavo Tadeu Volpato
- Institute of Biological and Health Sciences, University Center of Araguaia, Universidade Federal do Mato Grosso, Barra do Garças, MT, Brazil
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17
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Marini G, Piculo F, Vesentini G, Barbosa AMP, Damasceno DC, Matheus SMM, Hijaz A, Daneshgari F, Rudge MVC. Effects of short-term severe and long-term mild STZ-induced diabetes in urethral tissue of female rats. Neurourol Urodyn 2016; 36:574-579. [PMID: 26949929 DOI: 10.1002/nau.22974] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 01/28/2016] [Indexed: 12/25/2022]
Abstract
AIMS To estimate and compare the alterations in the urethral tissues of female rats with two diabetes models: short-term severe and long-term mild diabetes. METHODS To induce mild diabetes (blood glucose levels between 120 and 300 mg/dl), female newborns received streptozotocin (100 mg/kg body weight, sc route), and to induce short-term severe diabetes (blood glucose levels > 300 mg/d), adult animals received streptozotocin (40 mg/kg, iv route). The rats were killed on day 133 of the experimental via an i.p. Thiopentax® injection of 80 mg/kg, and the urethrovaginal tissues were harvested. Morphometric, pathological, immunohistochemical, and ultrastructural analyses were conducted. RESULTS In the long-term mild diabetes group, collagen deposition, severe fibrosis, lipid droplets and numerous subsarcolemmal, and intermyofibrillar mitochondria were observed. In the short-term severe diabetes group, centrally located myonuclei and a significantly reduced striated muscle area were noted. Both diabetic models exhibited similar immunohistochemistry patterns, with changes from fast to slow fibers and a decrease in the numbers of fast fibers. CONCLUSIONS Either long-term mild hyperglycemia or short-term severe hyperglycemia have detrimental impacts on muscle health. They are both involved in the failure to maintain healthy skeletal muscle that may contribute to the development of pelvic floor dysfunctions via different pathways. These results have important implications for monitoring and prevention strategies for improving the quality of life of women with diabetes mellitus and pelvic floor muscle dysfunction. Neurourol. Urodynam. 36:574-579, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Gabriela Marini
- Laboratory of Experimental Research on Gynecology and Obstetrics, Department of Gynecology and Obstetrics, Botucatu Medical School, Univ Estadual Paulista_UNESP, Brazil
| | - Fernanda Piculo
- Laboratory of Experimental Research on Gynecology and Obstetrics, Department of Gynecology and Obstetrics, Botucatu Medical School, Univ Estadual Paulista_UNESP, Brazil
| | - Giovana Vesentini
- Laboratory of Experimental Research on Gynecology and Obstetrics, Department of Gynecology and Obstetrics, Botucatu Medical School, Univ Estadual Paulista_UNESP, Brazil
| | - Angélica Mércia Pascon Barbosa
- Laboratory of Experimental Research on Gynecology and Obstetrics, Department of Gynecology and Obstetrics, Botucatu Medical School, Univ Estadual Paulista_UNESP, Brazil
| | - Débora Cristina Damasceno
- Laboratory of Experimental Research on Gynecology and Obstetrics, Department of Gynecology and Obstetrics, Botucatu Medical School, Univ Estadual Paulista_UNESP, Brazil
| | | | - Adonis Hijaz
- Department of Urology, Case Western Reserve University, Urology Institute University Hospitals Case Medical Center, Cleveland, Ohio
| | - Firouz Daneshgari
- Department of Urology, Case Western Reserve University, Urology Institute University Hospitals Case Medical Center, Cleveland, Ohio
| | - Marilza Vieira Cunha Rudge
- Laboratory of Experimental Research on Gynecology and Obstetrics, Department of Gynecology and Obstetrics, Botucatu Medical School, Univ Estadual Paulista_UNESP, Brazil
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Maiese K. Erythropoietin and diabetes mellitus. World J Diabetes 2015; 6:1259-1273. [PMID: 26516410 PMCID: PMC4620106 DOI: 10.4239/wjd.v6.i14.1259] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/25/2015] [Accepted: 09/28/2015] [Indexed: 02/05/2023] Open
Abstract
Erythropoietin (EPO) is a 30.4 kDa growth factor and cytokine that governs cell proliferation, immune modulation, metabolic homeostasis, vascular function, and cytoprotection. EPO is under investigation for the treatment of variety of diseases, but appears especially suited for the treatment of disorders of metabolism that include diabetes mellitus (DM). DM and the complications of this disease impact a significant portion of the global population leading to disability and death with currently limited therapeutic options. In addition to its utility for the treatment of anemia, EPO can improve cardiac function, reduce fatigue, and improve cognition in patients with DM as well as regulate cellular energy metabolism, obesity, tissue repair and regeneration, apoptosis, and autophagy in experimental models of DM. Yet, EPO can have adverse effects that involve the vasculature system and unchecked cellular proliferation. Critical to the cytoprotective capacity and the potential for a positive clinical outcome with EPO are the control of signal transduction pathways that include protein kinase B, the mechanistic target of rapamycin, Wnt signaling, mammalian forkhead transcription factors of the O class, silent mating type information regulation 2 homolog 1 (Saccharomyces cerevisiae), and AMP activated protein kinase. Therapeutic strategies that can specifically target and control EPO and its signaling pathways hold great promise for the development of new and effective clinical treatments for DM and the complications of this disorder.
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New Insights for Oxidative Stress and Diabetes Mellitus. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:875961. [PMID: 26064426 PMCID: PMC4443788 DOI: 10.1155/2015/875961] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 04/15/2015] [Indexed: 12/12/2022]
Abstract
The release of reactive oxygen species (ROS) and the generation of oxidative stress are considered critical factors for the pathogenesis of diabetes mellitus (DM), a disorder that is growing in prevalence and results in significant economic loss. New therapeutic directions that address the detrimental effects of oxidative stress may be especially warranted to develop effective care for the millions of individuals that currently suffer from DM. The mechanistic target of rapamycin (mTOR), silent mating type information regulation 2 homolog 1 (S. cerevisiae) (SIRT1), and Wnt1 inducible signaling pathway protein 1 (WISP1) are especially justified to be considered treatment targets for DM since these pathways can address the complex relationship between stem cells, trophic factors, impaired glucose tolerance, programmed cell death pathways of apoptosis and autophagy, tissue remodeling, cellular energy homeostasis, and vascular biology that greatly impact the biology and disease progression of DM. The translation and development of these pathways into viable therapies will require detailed understanding of their proliferative nature to maximize clinical efficacy and limit adverse effects that have the potential to lead to unintended consequences.
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Maiese K. Novel applications of trophic factors, Wnt and WISP for neuronal repair and regeneration in metabolic disease. Neural Regen Res 2015; 10:518-28. [PMID: 26170801 PMCID: PMC4424733 DOI: 10.4103/1673-5374.155427] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2015] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus affects almost 350 million individuals throughout the globe resulting in significant morbidity and mortality. Of further concern is the growing population of individuals that remain undiagnosed but are susceptible to the detrimental outcomes of this disorder. Diabetes mellitus leads to multiple complications in the central and peripheral nervous systems that include cognitive impairment, retinal disease, neuropsychiatric disease, cerebral ischemia, and peripheral nerve degeneration. Although multiple strategies are being considered, novel targeting of trophic factors, Wnt signaling, Wnt1 inducible signaling pathway protein 1, and stem cell tissue regeneration are considered to be exciting prospects to overcome the cellular mechanisms that lead to neuronal injury in diabetes mellitus involving oxidative stress, apoptosis, and autophagy. Pathways that involve insulin-like growth factor-1, fibroblast growth factor, epidermal growth factor, and erythropoietin can govern glucose homeostasis and are intimately tied to Wnt signaling that involves Wnt1 and Wnt1 inducible signaling pathway protein 1 (CCN4) to foster control over stem cell proliferation, wound repair, cognitive decline, β-cell proliferation, vascular regeneration, and programmed cell death. Ultimately, cellular metabolism through Wnt signaling is driven by primary metabolic pathways of the mechanistic target of rapamycin and AMP activated protein kinase. These pathways offer precise biological control of cellular metabolism, but are exquisitely sensitive to the different components of Wnt signaling. As a result, unexpected clinical outcomes can ensue and therefore demand careful translation of the mechanisms that govern neural repair and regeneration in diabetes mellitus.
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Affiliation(s)
- Kenneth Maiese
- Cellular and Molecular Signaling, Newark, New Jersey 07101, USA
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Maiese K. mTOR: Driving apoptosis and autophagy for neurocardiac complications of diabetes mellitus. World J Diabetes 2015; 6:217-224. [PMID: 25789103 PMCID: PMC4360415 DOI: 10.4239/wjd.v6.i2.217] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 12/10/2014] [Accepted: 01/19/2015] [Indexed: 02/05/2023] Open
Abstract
The World Health Organization estimates that diabetes mellitus (DM) will become the seventh leading cause of death during the next two decades. DM affects approximately 350 million individuals worldwide and additional millions that remain undiagnosed are estimated to suffer from the complications of DM. Although the complications of DM can be seen throughout the body, the nervous, cardiac, and vascular systems can be significantly affected and lead to disorders that include cognitive loss, stroke, atherosclerosis, cardiac failure, and endothelial stem cell impairment. At the cellular level, oxidative stress is a significant determinant of cell fate during DM and leads to endoplasmic reticulum stress, mitochondrial dysfunction, apoptosis, and autophagy. Multiple strategies are being developed to combat the complications of DM, but it is the mechanistic target of rapamycin (mTOR) that is gaining interest in drug development circles especially for protective therapies that involve cytokines and growth factors such as erythropoietin. The pathways of mTOR linked to mTOR complex 1, mTOR complex 2, AMP activated protein kinase, and the hamartin (tuberous sclerosis 1)/tuberin (tuberous sclerosis 2) complex can ultimately influence neuronal, cardiac, and vascular cell survival during oxidant stress in DM through a fine interplay between apoptosis and autophagy. Further understanding of these mTOR regulated pathways should foster novel strategies for the complications of DM that impact millions of individuals with death and disability.
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Maiese K. Programming apoptosis and autophagy with novel approaches for diabetes mellitus. Curr Neurovasc Res 2015; 12:173-88. [PMID: 25742566 PMCID: PMC4380829 DOI: 10.2174/1567202612666150305110929] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 02/16/2015] [Accepted: 02/19/2015] [Indexed: 12/13/2022]
Abstract
According to the World Health Organization, diabetes mellitus (DM) in the year 2030 will be ranked the seventh leading cause of death in the world. DM impacts all systems of the body with oxidant stress controlling cell fate through endoplasmic reticulum stress, mitochondrial dysfunction, alterations in uncoupling proteins, and the induction of apoptosis and autophagy. Multiple treatment approaches are being entertained for DM with Wnt1 inducible signaling pathway protein 1 (WISP1), mechanistic target of rapamycin (mTOR), and silent mating type information regulation 2 homolog) 1 (S. cerevisiae) (SIRT1) generating significant interest as target pathways that can address maintenance of glucose homeostasis as well as prevention of cellular pathology by controlling insulin resistance, stem cell proliferation, and the programmed cell death pathways of apoptosis and autophagy. WISP1, mTOR, and SIRT1 can rely upon similar pathways such as AMP activated protein kinase as well as govern cellular metabolism through cytokines such as EPO and oral hypoglycemics such as metformin. Yet, these pathways require precise biological control to exclude potentially detrimental clinical outcomes. Further elucidation of the ability to translate the roles of WISP1, mTOR, and SIRT1 into effective clinical avenues offers compelling prospects for new therapies against DM that can benefit hundreds of millions of individuals throughout the globe.
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Affiliation(s)
- Kenneth Maiese
- MD, Cellular and Molecular Signaling, Newark, New Jersey 07101, USA.
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Descamps OS, Tarantino E, Guilmot PF. Does FTO have a paradoxical effect in fetal life? BMC Genet 2014; 15:145. [PMID: 25539997 PMCID: PMC4332444 DOI: 10.1186/s12863-014-0145-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 12/05/2014] [Indexed: 01/21/2023] Open
Abstract
Background Low weight at birth is associated with obesity in later life. One hypothesis to explain such an association is that genetic variants that increase the risk of obesity also reduce fetal weight. Recently, obesity in adults was found to be associated with common variants of the fat mass and obesity-associated (FTO) gene. We examined the association between FTO polymorphisms and birth weight in a singleton, full-term birth cohort of 494 newborn-mother pairs without any complications. Results The risk alleles for obesity (“A” allele for the rs9939609 FTO variant and “G” allele for the rs9930506 FTO variant) were associated with low weight at birth. The mean differences per risk allele were −79 g (95% CI: −129 to −30; p = 0.002) for rs9939609 and −84 g (95% CI: −131 to −36; P < 0.001) for rs9930506. The level of association remained statistically significant after adjustment for the maternal risk allele and for variables usually associated with birth weight (−50 g, 95% CI: −99 to 0; p = 0.05 for rs9939609 and −48 g, 95% CI: −100 to 0; p = 0.05 for rs9930506). In the follow-up, the allelic difference in weight was attenuated over time. Conclusions The FTO variants that confer a predisposition to obesity later in life appear to be associated with low weight at birth. This finding favors the hypothesis of a common genetic denominator that predisposes to a low weight at birth and obesity in adults.
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Affiliation(s)
- Olivier S Descamps
- Center for Medical Research at Jolimont, 159 Rue Ferrer, B-7100, Haine Saint-Paul, Belgium. .,Department of Internal Medicine, Centre Hospitalier Jolimont-Lobbes, 159 Rue Ferrer, B-7100, Haine Saint-Paul, Belgium.
| | - Eric Tarantino
- Center for Medical Research at Jolimont, 159 Rue Ferrer, B-7100, Haine Saint-Paul, Belgium.
| | - Pierre-Francois Guilmot
- Department of Obstetrics and Gynecology, Centre Hospitalier Jolimont-Lobbes, 159 Rue Ferrer, B-7100, Haine Saint-Paul, Belgium.
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Spada APM, Damasceno DC, Sinzato YK, Campos KE, Faria PA, Dallaqua B, Calderon IMP, Rudge MVC, Rodrigues T. Oxidative Stress in Maternal Blood and Placenta From Mild Diabetic Rats. Reprod Sci 2014; 21:973-977. [PMID: 24458484 DOI: 10.1177/1933719113519175] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The aim of the present study was at evaluating the effects of oxidative stress in blood and placenta of mild diabetic Wistar rats. At birth, Wistar rats received citrate buffer (nondiabetic group, n = 15) and another group received streptozotocin (100 mg/kg, subcutaneous) to induce mild diabetes (diabetic, n = 15). The glycemia of these pregnant adult female rats were evaluated at days 0, 7, 14, and 21 of pregnancy, and at term pregnancy, the blood and placental samples were collected for oxidative stress measurements. The mild diabetes caused glycemia superior to 120 mg/dL during pregnancy, increased superoxide dismutase, glutathione peroxidase, glutathione reductase activities, and malondialdehyde levels in the blood, and catalase activity in the placenta. Thus, mild diabetes increased activities of antioxidant substances aiming at defending against the exacerbated oxidative stress but were not enough. The placenta also answered to diabetic milieu and increased antioxidant defense, showing that even a mild hyperglycemia was enough to cause placental and maternal blood changes.
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Affiliation(s)
- Ana Paula Machado Spada
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Débora Cristina Damasceno
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Yuri Karen Sinzato
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Kleber Eduardo Campos
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil Institute of Biological and Health Sciences, University Center of Araguaia, Mato Grosso Federal University (UFMT), Barra do Garças, Mato Grosso, Brazil
| | | | - Bruna Dallaqua
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Iracema Mattos Paranhos Calderon
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Marilza Vieira Cunha Rudge
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Tiago Rodrigues
- Federal University from ABC (UFABC), São Paulo, São Paulo State, Brazil
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Piculo F, Marini G, Barbosa AMP, Damasceno DC, Matheus SMM, Felisbino SL, Daneshgari F, Rudge MVC. Urethral striated muscle and extracellular matrix morphological characteristics among mildly diabetic pregnant rats: translational approach. Int Urogynecol J 2013; 25:403-15. [PMID: 24043129 DOI: 10.1007/s00192-013-2218-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 08/24/2013] [Indexed: 12/01/2022]
Abstract
INTRODUCTION AND HYPOTHESIS Diabetes mellitus (DM) during pregnancy is associated with high levels of urinary incontinence (UI) and pelvic floor muscle dysfunction. Mild DM can lead to changes in urethral striated muscle and extracellular matrix (ECM) in pregnant rats considering both structures as an entire system responsible for urinary continence. METHODS Ninety-two female Wistar rats were distributed in four experimental groups: virgin, pregnant, diabetic, and diabetic pregnant. In adult life, parental nondiabetic female rats were mated with nondiabetic male rats to obtain newborns. At the first day of birth, newborns received citrate buffer (nondiabetic group) or streptozotocin 100 mg/kg body weight, subcutaneous route (mild DM group). At day 21 of the pregnancy, the rats were lethally anesthetized and the urethra and vagina were extracted as a unit. Urethral and vaginal sections were cut and analyzed by: (a) cytochemical staining for ECM and muscle structural components, (b) immunohistochemistry to identify fast- and slow-muscle fibers, and (c) transmission electron microscopy for ultrastructural analysis of urethral striated muscle. RESULTS In comparison with the three control groups, variations in the urethral striated muscle and ECM from diabetic pregnant rats were observed including thinning, atrophy, fibrosis, increased area of blood vessels, mitochondria accumulation, increased lipid droplets, glycogen granules associated with colocalization of fast and slow fibers, and a steady decrease in the proportion of fast to slow fibers. CONCLUSIONS Mild DM and pregnancy can lead to a time-dependent disorder and tissue remodeling in which the urethral striated muscle and ECM has a fundamental function.
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Affiliation(s)
- Fernanda Piculo
- Laboratory of Experimental Research on Gynecology and Obstetrics, Department of Gynecology and Obstetrics, Botucatu Medical School, Universidade Estadual Paulista-UNESP, Botucatu, São Paulo, Brazil
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