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Donadio JLS, Prado SBRD, Soares CG, Tamarossi RI, Heidor R, Moreno FS, Fabi JP. Ripe papaya pectins inhibit the proliferation of colon cancer spheroids and the formation of chemically induced aberrant crypts in rats colons. Carbohydr Polym 2024; 331:121878. [PMID: 38388061 DOI: 10.1016/j.carbpol.2024.121878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/28/2023] [Accepted: 01/25/2024] [Indexed: 02/24/2024]
Abstract
Pectins are a class of soluble polysaccharides that can have anticancer properties through several mechanisms. This study aimed to characterize the molecular structure of water-soluble fractions (WSF) derived from ripe and unripe papayas and assess their biological effects in two models: the 3D colon cancer spheroids to measure cell viability and cytotoxicity, and the in vivo model to investigate the inhibition of preneoplastic lesions in rats. WSF yield was slightly higher in ripe papaya, and both samples mainly consisted of pectin. Both pectins inhibited the growth of colon cancer HT29 and HCT116 spheroids. Unripe pectin disturbed HT29/NIH3T3 spheroid formation, decreased HCT116 spheroid viability, and increased spheroid cytotoxicity. Ripe pectin had a more substantial effect on the reduction of spheroid viability for HT29 spheroids. Furthermore, in vivo experiments on a rat model revealed a decrease in aberrant crypt foci (ACF) formation for both pectins and increased apoptosis in colonocytes for ripe papaya pectins. The results suggest potential anticancer properties of papaya pectin, with ripe pectin showing a higher potency.
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Affiliation(s)
- Janaina L S Donadio
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil; Food Research Center (FoRC), CEPID-FAPESP, Research Innovation and Dissemination Centers, São Paulo Research Foundation, Rua do Lago, 250, São Paulo, SP, Brazil
| | | | - Caroline Giacomelli Soares
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil
| | - Rodrigo Invernort Tamarossi
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil
| | - Renato Heidor
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil
| | - Fernando Salvador Moreno
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil
| | - João Paulo Fabi
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil; Food Research Center (FoRC), CEPID-FAPESP, Research Innovation and Dissemination Centers, São Paulo Research Foundation, Rua do Lago, 250, São Paulo, SP, Brazil; Food and Nutrition Research Center (NAPAN), University of São Paulo, São Paulo, SP, Brazil.
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Feizolahi F, Arabzadeh E, Sarshin A, Falahi F, Dehghannayeri Z, Ali Askari A, Wong A, Aghaei F, Zargani M. Effects of Exercise Training and L-Arginine Loaded Chitosan Nanoparticles on Hippocampus Histopathology, β-Secretase Enzyme Function, APP, Tau, Iba1and APOE-4 mRNA in Aging Rats. Neurotox Res 2024; 42:21. [PMID: 38441819 DOI: 10.1007/s12640-024-00699-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 02/19/2024] [Accepted: 02/26/2024] [Indexed: 03/07/2024]
Abstract
The objective of this study was to evaluate the combined and independent effects of exercise training and L-Arginine loaded chitosan nanoparticles (LA CNPs) supplementation on hippocampal Tau, App, Iba1, and ApoE gene expression, oxidative stress, β-secretase enzyme activity, and hippocampus histopathology in aging rats. Thirty-five male Wistar rats were randomly assigned to five groups (n = 7 in each): Young (8 weeks old), Old (20 months old), old + L-arginine supplementation (Old Sup), old + exercise (Old Exe) and old + L-arginine supplementation + exercise (Old Sup + Exe). LA CNPs were administered to the supplement groups through gavage at a dosage of 500 mg/kg/day for 6-weeks. Exercise groups were subjected to a swimming exercise program five days/week for the same duration. Upon the completion of their interventions, the animals underwent behavioral and open-field task tests and were subsequently sacrificed for hippocampus genetic and histopathological evaluation. For histopathological analysis of brain, Cresyl violet staining was used. Congo Red staining was employed to confirm amyloid plaques in the hippocampus. Expressions of Tau, App, Iba1, and ApoE genes were determined by real-time PCR. In contrast to the Old group, Old Exe and Old Sup + Exe groups spent more time in the central space in the open field task (p < 0.05) and have more live cells in the hippocampus. Old rats (Old, Old Sup and Old Exe groups) exhibited a significant Aβ peptide accumulation and increases in APP, Tau, Iba1, APOE-4 mRNA and MDA, along with decreases in SOD compared to the young group (p < 0.05). However, LA CNPs supplementation, exercise, and their combination (Old Sup, Old Exe and Old Sup + Exe) significantly reduced MDA, Aβ plaque as well as APP, Tau, Iba1, and APOE-4 mRNA compared to the Old group (p < 0.05). Consequently, the administration of LA CNPs supplements and exercise might regulate the risk factors of hippocampus cell and tissue.
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Affiliation(s)
- Foad Feizolahi
- Clinical Care and Health Promotion Research Center, Karaj branch, Islamic Azad University, Karaj, Iran
| | - Ehsan Arabzadeh
- Exercise Physiology Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Amir Sarshin
- Clinical Care and Health Promotion Research Center, Karaj branch, Islamic Azad University, Karaj, Iran
| | - Farshad Falahi
- Department of Exercise Physiology, Karaj Branch, Islamic Azad University, Karaj, Iran
| | - Zahra Dehghannayeri
- Department of Exercise Physiology, Karaj Branch, Islamic Azad University, Karaj, Iran
| | - Ali Ali Askari
- Department of Exercise Physiology, Karaj Branch, Islamic Azad University, Karaj, Iran
| | - Alexei Wong
- Department of Health and Human Performance, Marymount University, Arlington, VA, USA
| | - Fariba Aghaei
- Department of Exercise Physiology, Karaj Branch, Islamic Azad University, Karaj, Iran
| | - Mehdi Zargani
- Department of Exercise Physiology, Karaj Branch, Islamic Azad University, Karaj, Iran.
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Posridee K, Oonsivilai A, Oonsivilai R. Maltodextrin from Sweet Cassava: A Promising Endurance Enhancer. Foods 2024; 13:766. [PMID: 38472881 DOI: 10.3390/foods13050766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/24/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
The effects of maltodextrin and crude extract from sweet cassava on exercise endurance were examined in the male Wistar rat. The rats were randomly assigned to either an exercise training group or a non-exercise training group. Both groups were further divided into subgroups that received either a control, crude extract (250 or 500 mg/kg), or maltodextrin (250 or 500 mg/kg) orally once daily for 16 days. The time to the point of exhaustion after weight-loaded forced swimming was measured on day 16. Body weight gain, relative organ weight, biochemical parameters, and liver and gastrocnemius muscle glycogen content were also determined. Maltodextrin at a dose of 500 mg/kg significantly increased the time to the point of exhaustion compared to all other groups. Maltodextrin and crude extract with both doses significantly increased liver and gastrocnemius muscle glycogen content compared to the control group. There were no significant differences in glucose, BUN, triglyceride, or insulin levels between the groups. Crude extract at a dose of 250 mg/kg significantly increased AST and ALT levels, and LDH levels significantly increased in the exercise training group. Creatinine levels were significantly higher in the exercise training group compared to the non-exercise training group. Exercise boosted antioxidant enzymes, glycogen, and reduced damaging free radicals in the rats. Maltodextrin and crude extract further amplified this effect by activating AMPK and PGC-1α, suggesting that they combat fatigue through an antioxidant pathway linked to AMPK. These findings suggest that maltodextrin and crude extract from sweet cassava may have the potential to enhance exercise endurance. They may increase glycogen storage in the liver and gastrocnemius muscle, potentially through improved glycogen reserves and glycogen sparing effects. Further studies are needed to elucidate the mechanisms underlying these effects.
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Affiliation(s)
- Kakanang Posridee
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Anant Oonsivilai
- School of Electrical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Ratchadaporn Oonsivilai
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
- Health and Wellness Research Unit, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
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Patel S, Patel S, Kotadiya A, Patel S, Shrimali B, Joshi N, Patel T, Trivedi H, Patel J, Joharapurkar A, Jain M. Age-related changes in hematological and biochemical profiles of Wistar rats. Lab Anim Res 2024; 40:7. [PMID: 38409070 PMCID: PMC10895735 DOI: 10.1186/s42826-024-00194-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND Wistar rats are extensively used as the model for assessing toxicity and efficacy in preclinical research. Hematological and biochemical laboratory data are essential for evaluating specific variations in the physiological and functional profile of a laboratory animal. Establishing hematological and biochemical reference values for Wistar (han) rats at various age intervals was the goal of this work. Male and female Wistar rats (n = 660) of ages 6-8 weeks, 10-14 weeks and > 6 months were used in the experiment. Blood and serum were collected from these rats under fasting conditions. RESULTS We observed that the majority of hematological and biochemical parameters were significantly influenced by sex and age. Hematological changes were significantly correlated to aging were increased red blood cells, hemoglobin, hematocrit, neutrophils, monocytes and eosinophils in both sexes, as well as decreased platelet, mean corpuscular volume, mean corpuscular hemoglobin and lymphocytes in both sexes. White blood cells of male rats were considerably higher than those of female rats in all age ranges. For biochemistry, increase in glucose, total protein and creatinine were seen in both sexes, along with increases in urea in females and alanine aminotransferase in males. Age was significantly associated with decreased alkaline phosphatase in both sexes. CONCLUSIONS When using Wistar rats as a model, these reference values may be useful in evaluating the results.
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Affiliation(s)
- Suresh Patel
- Animal Research Facility, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India.
| | - Satish Patel
- Animal Research Facility, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
| | - Ashvin Kotadiya
- Animal Research Facility, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
| | - Samir Patel
- Animal Research Facility, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
| | - Bhavesh Shrimali
- Animal Research Facility, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
| | - Nikita Joshi
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
| | - Tushar Patel
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
| | - Harshida Trivedi
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
| | - Jitendra Patel
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
| | - Amit Joharapurkar
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
| | - Mukul Jain
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Ltd., Ahmedabad, India
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Jones Severino Vasconcelos QD, Silva Frederico MJ, Sousa Alves RD, Jesus Pinheiro Gomes Bandeira TD, Amaral de Moraes ME, Aragão GF. Effects of whey protein supplementation on gut microbiota of Wistar rats with valproic acid-induced autism symptoms. Future Microbiol 2024; 19:213-226. [PMID: 37934065 DOI: 10.2217/fmb-2023-0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023] Open
Abstract
Aim: To evaluate the effects of whey protein (WP) supplementation (1.24 mg/g, 24 days) in rats with autism spectrum disorder (ASD) induced by valproic acid (400 mg/kg, single dose). Materials & methods: Wistar rats (14 days old) were divided into four groups: control, ASD, ASD plus WP and WP. Results: WP increased bacterial diversity and the number of colonies. Bacteria from the Firmicutes phylum were predominantly found in the supplemented groups (p < 0.05). WP also improved the animals' memory in the Y-maze test and decreased the time that male animals spent in the 'solitary chamber' (p < 0.05). Conclusion: WP supplementation positively influenced gut microbiota, along with memory.
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Affiliation(s)
| | | | - Renata de Sousa Alves
- Department of Clinical and Toxicological Analysis, Federal University of Ceara, 60430-160, Fortaleza, Brazil
| | | | | | - Gislei Frota Aragão
- Health Science Center, State University of Ceara, 60430-275, Fortaleza, Brazil
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Martínez-Sánchez JE, Cárdenas Y, Trujillo X, Ríos-Silva M, Díaz-Reval MI, Bricio-Barrios JA, Muñiz J, Alcaraz-Siqueiros J, Huerta M. Increased Frequency of Giant Miniature End-Plate Potentials at the Neuromuscular Junction in Diabetic Rats. Biomedicines 2023; 12:68. [PMID: 38255175 PMCID: PMC10813272 DOI: 10.3390/biomedicines12010068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/20/2023] [Accepted: 12/23/2023] [Indexed: 01/24/2024] Open
Abstract
There is a need for research addressing the functional characteristics of the motor end-plate in diabetes to identify mechanisms contributing to neuromuscular dysfunction. Here, we investigated the effect of diabetes on spontaneous acetylcholine release in the rat neuromuscular junction. We studied two randomized groups of male Wistar rats (n = 7 per group, 350 ± 50 g, 12-16 weeks of age): one with streptozotocin-induced experimental diabetes, and a healthy control group without diabetes. After 8 weeks of monitoring after diabetes induction, rats in both groups were anesthetized with pentobarbital. Then, the diaphragm muscle was dissected for electrophysiological recordings of miniature end-plate potentials (MEPPs) using a single electrode located at the region of the muscle end-plate. All experiments were conducted at environmental temperature (20-22 °C) in rat Ringer solution with constant bubbling carbogen (95% O2, 5% CO2). Compared to healthy controls, in the diaphragm neuromuscular end-plate derived from diabetic rats, the MEPPs were higher in amplitude and frequency, and the proportion of giant MEPPs was elevated (7.09% vs. 1.4% in controls). Our results showed that diabetes affected the acetylcholine MEPP pattern and increased the number of giant potentials compared to healthy controls.
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Affiliation(s)
- Julián Elías Martínez-Sánchez
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Yolitzy Cárdenas
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Xóchitl Trujillo
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Mónica Ríos-Silva
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima—CONAHCyT, Av. 25 de Julio 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico
| | - M. Irene Díaz-Reval
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Jaime Alberto Bricio-Barrios
- Facultad de Medicina, Universidad de Colima, Av. Universidad #333, Col. Las Víboras, Colima 28040, Colima, Mexico;
| | - Jesús Muñiz
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
| | - Julio Alcaraz-Siqueiros
- Facultad de Ciencias Biológicas y Agropecuarias, Universidad de Colima, Km 40 Autopista Colima-Manzanillo, Crucero de Tecomán, Tecomán 28930, Colima, Mexico
| | - Miguel Huerta
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de julio # 965, Col. Villas San Sebastián, Colima 28045, Colima, Mexico; (J.E.M.-S.); (X.T.)
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Poulios C, Karagkiozaki V, Kapoukranidou D, Chakim Z, Zarampoukas T, Foroglou N, Logothetidis S. Bringing pathology to nanomedicine: a comparison of in vivo toxicity of polymeric nanoparticle carriers with and without chitosan coating. Virchows Arch 2023; 483:775-786. [PMID: 37402995 DOI: 10.1007/s00428-023-03581-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 05/23/2023] [Accepted: 06/14/2023] [Indexed: 07/06/2023]
Abstract
Over the last years, there has been an increasing number of proposals for the use of nanomaterials in medicine. The safety of novel technologies must be verified, prior to their clinical application. Pathology has much to contribute towards this end. In this study, we compared the in vivo toxicity effects of poly- (lactic-co-glycolic acid) nanoparticles with and without chitosan shell. Both nanoparticle types were loaded with curcumin. The nanoparticles were assessed in vitro for potential cytotoxicity with cell viability studies. For the in vivo test, 36 adult Wistar rats were used, four of which were the control group. The remaining 32 were divided into 2 groups, each of which was administered differentially coated drug carriers: (A) nanoparticles without chitosan coating and (B) nanoparticles with chitosan coating. For both groups, the subcutaneous route was used for administration. Each group was further divided into 2 sub-groups of 8 animals each. The animals of the first sub-groups were sacrificed 24 h after the injection and those of the second on the 7th day. The control group was also divided into 2 subgroups of 2 animals each. At the appointed post-administrative date, the rats were sacrificed, and specimens from the brain, liver, kidneys, heart, stomach, lungs, and from the skin at the injection site were collected and studied histopathologically. The evaluation of both in vitro and in vivo testing shows that nanoparticles with chitosan have significantly less, if any, toxic effects compared to those without chitosan.
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Affiliation(s)
- Christos Poulios
- Department of Pathology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
- European Society of Pathology, Brussels, Belgium.
| | - Varvara Karagkiozaki
- Laboratory of Thin Films, Nanobiomaterials-Nanosystems and Nanometrology, Faculty of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
- BL NanoBiomed, Thessaloniki, Greece
| | - Dorothea Kapoukranidou
- Department of Physiology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Zena Chakim
- Laboratory of Thin Films, Nanobiomaterials-Nanosystems and Nanometrology, Faculty of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
- BL NanoBiomed, Thessaloniki, Greece
| | - Thomas Zarampoukas
- Department of Pathology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikolaos Foroglou
- Department of Neurosurgery, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stergios Logothetidis
- Laboratory of Thin Films, Nanobiomaterials-Nanosystems and Nanometrology, Faculty of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Ceylani T, Önlü H, Keskin S, Allahverdi H, Teker HT. SCD Probiotics mitigate cafeteria diet-induced liver damage in Wistar rats during development. J Gastroenterol Hepatol 2023; 38:2142-2151. [PMID: 37963489 DOI: 10.1111/jgh.16395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 10/03/2023] [Accepted: 10/17/2023] [Indexed: 11/16/2023]
Abstract
BACKGROUND AND AIM The liver plays a critical role in metabolic homeostasis, and its health is often compromised by poor dietary habits. This study aimed to investigate the therapeutic potential of SCD Probiotics in mitigating adverse liver effects induced by a cafeteria diet in male Wistar rats during their developmental period. METHODS Four groups of seven male Wistar rats each were subjected to different dietary regimens from day 21 (weaning) to day 56. The groups were as follows: a control group on normal feed; a probiotic-supplemented group on normal feed; a group on a cafeteria diet mixed with normal feed; and a group on a cafeteria diet mixed with normal feed, supplemented with SCD Probiotics. Liver health was assessed using Fourier transform infrared spectroscopy and histopathological evaluations. RESULTS Rats on the cafeteria diet exhibited significant disruptions in lipid, protein, cholesterol, triglyceride levels, and glycogen/phosphate content. Histopathological abnormalities such as lymphocytic infiltration, steatosis, and necrosis were also observed. However, SCD Probiotics supplementation led to notable improvements in the liver's biomolecular composition and mitigated histopathological abnormalities. Serum liver enzyme levels (AST, ALT, ALP, and LDH) also showed beneficial effects, while serum albumin levels remained stable. CONCLUSIONS SCD Probiotics demonstrated a promising potential to counteract the adverse liver effects induced by a cafeteria diet in male Wistar rats. The study revealed significant improvements in biomolecular composition, histopathology, and serum enzyme levels. However, these findings are preliminary and necessitate further in vivo studies and clinical trials for validation.
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Affiliation(s)
- Taha Ceylani
- Department of Molecular Biology and Genetics, Muş Alparslan University, Muş, Turkey
- Department of Food Quality Control and Analysis, Muş Alparslan University, Muş, Turkey
| | - Harun Önlü
- Department of Molecular Biology and Genetics, Muş Alparslan University, Muş, Turkey
- Department of Food Quality Control and Analysis, Muş Alparslan University, Muş, Turkey
| | - Seda Keskin
- Department of Histology and Embryology, Van Yuzuncu Yil University, Van, Turkey
| | - Hüseyin Allahverdi
- Department of Molecular Biology and Genetics, Muş Alparslan University, Muş, Turkey
| | - Hikmet Taner Teker
- Department of Medical Biology and Genetics, Ankara Medipol University, Ankara, Turkey
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Lariosa-Willingham K, Leonoudakis D, Simon F, Walker K, Guillaume P, Warren L, Stratton J. Imiquimod-induced pruritus in female wild-type and knockin Wistar rats: underscoring behavioral scratching in a rat model for antipruritic treatments. BMC Res Notes 2023; 16:348. [PMID: 38007440 PMCID: PMC10675923 DOI: 10.1186/s13104-023-06627-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 11/16/2023] [Indexed: 11/27/2023] Open
Abstract
OBJECTIVES Animal models of skin disease are used to evaluate therapeutics to alleviate disease. One common clinical dermatological complaint is pruritus (itch), but there is a lack of standardization in the characterization of pre-clinical models and scratching behavior, a key itch endpoint, is often neglected. One such model is the widely used imiquimod (IMQ) mouse model of psoriasis. However, it lacks characterized behavioral attributes like scratching, nor has widely expanded to other species like rats. Given these important attributes, this study was designed to broaden the characterization beyond the expected IMQ-induced psoriasis-like skin inflammatory skin changes and to validate the role of a potential therapeutic agent for pruritus in our genetic rat model. The study included female Wistar rats and genetically modified knockin (humanized proteinase-activated receptor 2 (F2RL1) female rats, with the widely used C57BL/6 J mice as a methodology control for typical IMQ dosing. RESULTS We demonstrate that the IMQ model can be reproduced in rats, including their genetically modified derivatives, and how scratching can be used as a key behavioral endpoint. We systemically delivered an anti-PAR2 antibody (P24E1102) which reversed scratching bouts-validating this behavioral methodology and have shown its feasibility and value in identifying effective antipruritic drugs.
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Affiliation(s)
| | | | - Florian Simon
- Porsolt SAS, ZA de Glatigné, 53940, Le Genest-Saint-Isle, France
| | - Kendall Walker
- Porsolt SAS, ZA de Glatigné, 53940, Le Genest-Saint-Isle, France
| | | | - Liling Warren
- Teva Pharmaceutical Industries Ltd, Redwood City, CA, 94063, USA
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Escobar-Ramírez JL, Santiago-Mejía J, Soto-Núñez M, Barrera-Vázquez OS, Vargas-Querea R, Magos-Guerrero GA. The Hypotensive and Vasodilatory Effects Observed in Rats Exposed to Chiranthodendron pentadactylon Larreat Flowers Can Be Attributed to Cyanidin 3- O-Glucoside. Molecules 2023; 28:7698. [PMID: 38067429 PMCID: PMC10707424 DOI: 10.3390/molecules28237698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023] Open
Abstract
Chiranthodendron pentadactylon Larreat is a tree native to southeastern Mexico and Guatemala. Its flower is used in Mexican folk medicine to treat a variety of diseases, including conditions of blood pressure. However, scientific information on its usefulness in this pathology is lacking. The present study evaluates the effect of a methanolic extract (ME) from the flower and its active constituents on heart rate (HR) and mean arterial pressure (MAP) in anesthetized rats (MAPHR). The study also analyzed the effects on rat-isolated aortic rings (RIAR) and the rat mesenteric arterial bed (MABR). Active fractions were chromatographed, which led to the isolation of cyanidin 3-O-glucoside (C3G) identified through HPLC. The Chiranthodendron pentadactylon flowers produced hypotensive and vasorelaxant effects associated with C3G. The vasorelaxant effect is a mechanism underlying the synthesis and release of nitric oxide (NO). Neither cholinergic receptors nor prostaglandins are involved. ME and C3G cause cardiovascular depression in anesthetized rats via cholinergic and prostanoid mechanisms. Our research expands the scientific understanding of the flowers on the rat cardiovascular system. This amplifies the appreciation of the flower's ethnomedicine employed to control blood pressure. However, researchers need to conduct toxicity studies to determine the safety of this plant.
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Affiliation(s)
| | | | | | | | | | - Gil Alfonso Magos-Guerrero
- Department of Pharmacology, Faculty of Medicine, University National Autonomous of Mexico, Mexico City 04510, Mexico; (J.L.E.-R.); (J.S.-M.); (M.S.-N.); (O.S.B.-V.); (R.V.-Q.)
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Tonon CC, de Souza Rastelli AN, Bodahandi C, Ghosh G, Hasan T, Xu Q, Greer A, Lyons AM. Superhydrophobic Tipped Antimicrobial Photodynamic Therapy Device for the In Vivo Treatment of Periodontitis Using a Wistar Rat Model. ACS Appl Mater Interfaces 2023; 15:50083-50094. [PMID: 37862708 PMCID: PMC10800031 DOI: 10.1021/acsami.3c12820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
Limited options exist for treatment of periodontitis; scaling and root planing (SRP) are not sufficient to eradicate P. gingivalis and the resulting inflammatory disease. Chlorhexidine (CHX), used as an adjuvant to SRP, may reduce bacterial loads but leads to pain and staining, while evidence for its efficacy is lacking. Antibiotics are effective but can lead to drug-resistance. The rising concern of antibiotic resistance limits the future use of this treatment approach. This study evaluates the efficacy of a novel superhydrophobic (SH) antimicrobial photodynamic therapy (aPDT) device as an adjuvant to SRP for the treatment of periodontitis induced in a Wistar rat in vivo model relative to CHX. The SH-aPDT device comprises an SH silicone rubber strip coated with verteporfin photosensitizer (PS), sterilized, and secured onto a tapered plastic optical fiber tip connected to a red diode laser. The superhydrophobic polydimethylsiloxane (PDMS) strips were fabricated by using a novel soluble template method that creates a medical-grade elastomer with hierarchical surface roughness without the use of nanoparticles. Superhydrophobicity minimizes direct contact of the PS-coated surface with bacterial biofilms. Upon insertion of the device tip into the pocket and energizing the laser, the device generates singlet oxygen that effectively targets and eliminates bacteria within the periodontal pocket. SH-aPDT treatment using 125 J/cm2 of red light on three consecutive days reduced P. gingivalis significantly more than SRP-CHX controls (p < 0.05). Clinical parameters significantly improved (p < 0.05), and histology and stereometry results demonstrated SH-aPDT to be the most effective treatment for improving healing and reducing inflammation, with an increase in fibroblast cells and extracellular matrix and a reduction in vascularization, inflammatory cells, and COX-2 expression. The SH-aPDT approach resulted in complete disease clearance assessed 30 days after treatment initiation with significant reduction of the periodontal pocket and re-formation of the junctional epithelium at the enamel-cementum junction. PS isolation on a SH strip minimizes the potential for bacteria to develop resistance, where the treatment may be aided by the oxygen supply retained within the SH surface.
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Affiliation(s)
- Caroline Coradi Tonon
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, 40 Blossom St, Boston, MA 02114, United States
| | - Alessandra Nara de Souza Rastelli
- Department of Restorative Dentistry, School of Dentistry, Araraquara, Sao Paulo State University-UNESP, 1680 Humaita St., Araraquara, SP 14801-903, Brazil
| | - Chathuna Bodahandi
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY 10016, United States
- Department of Chemistry, College of Staten Island, City University of New York, Staten Island, New York 10314, United States
| | - Goutam Ghosh
- SingletO2 Therapeutics LLC, VentureLink, Room 524B, 211 Warren St, Newark, NJ 07103, United States
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, 40 Blossom St, Boston, MA 02114, United States
- Division of Health Sciences and Technology, Harvard University and Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - QianFeng Xu
- SingletO2 Therapeutics LLC, VentureLink, Room 524B, 211 Warren St, Newark, NJ 07103, United States
| | - Alexander Greer
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY 10016, United States
- SingletO2 Therapeutics LLC, VentureLink, Room 524B, 211 Warren St, Newark, NJ 07103, United States
- Department of Chemistry, Brooklyn College, City University of New York, Brooklyn, NY 11210, United States
| | - Alan M. Lyons
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY 10016, United States
- Department of Chemistry, College of Staten Island, City University of New York, Staten Island, New York 10314, United States
- SingletO2 Therapeutics LLC, VentureLink, Room 524B, 211 Warren St, Newark, NJ 07103, United States
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da Silva VAP, Abboud RDS, Contreiras EC, Boaventura GT, Chagas MA. Avocado Oil ( Persea americana) Reduces Epithelial Proliferation on Benign Prostatic Hyperplasia. J Am Nutr Assoc 2023; 42:783-789. [PMID: 37871299 DOI: 10.1080/27697061.2023.2179552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 02/07/2023] [Indexed: 10/25/2023]
Abstract
OBJECTIVE The aim of this study is to evaluate the effect of avocado oil on the histoarchitecture of the prostate of normal rats and on rats with induced benign prostatic hyperplasia using computerized histomorphometry and immunohistochemistry. METHODS Twenty-eight Wistar rats were divided into four groups: the control group (CG), the avocado oil group (AOG) fed with avocado oil-based diet, the induced group (IG), and the avocado oil testosterone-induced group (AOIG). Prostate hyperplasia was induced by subcutaneous implantation of silicone pellets, filled with testosterone, to promote androgen stimulation. After 12 weeks, the rats were euthanized, and their prostates were removed. The material was prepared for paraffin processing and stained using hematoxylin-eosin and immunostaining for p63 nuclear antigen. RESULTS The mean epithelial thickness obtained from AOIG (19.44 ± 2.62 µm) was significantly reduced compared to that from IG (27.02 ± 4.1 µm). The average alveolar area in AOIG was 0.100 ± 0.03, which was greater than that of CG. The immunostaining for p63 in basal cells in AOIG was 17.77% ± 2.72 of the total area, a result greater than that in AOG (12.13% ± 2.04) and CG (12.01 ± 2.05). Collagen remodeling was observed with thicker fibers predominating in CG and AOG over thinner fibers in IG and AOIG. CONCLUSION The results suggest that avocado oil has a protective effect on the prostatic epithelium of Wistar rats subjected to long-term induced prostate hyperplasia.
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Affiliation(s)
- Vivian Alves Pereira da Silva
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology, Biomedic Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - Renato de Souza Abboud
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology, Biomedic Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - Ellen Cortez Contreiras
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology, Biomedic Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - Gilson Teles Boaventura
- Laboratory of Experimental Nutrition. Departament of Nutrition and Dietetics, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - Mauricio Alves Chagas
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology, Biomedic Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
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Kruzicova A, Chalupova M, Kuzminova G, Parak T, Klusakova J, Sopuch T, Suchy P. Effect of novel carboxymethyl cellulose-based dressings on acute wound healing dynamics. VET MED-CZECH 2023; 68:403-411. [PMID: 38028207 PMCID: PMC10666658 DOI: 10.17221/89/2023-vetmed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
The clinical implications and efficacy of newly developed modified cellulose materials were evaluated in an acute wound animal model. In the current study, sixty male rats were divided into four groups. A full-thickness circular excision wound was created in the suprascapular area. Newly developed matrices (acidic partially carboxymethylated cellulose; acidic partially carboxymethylated cellulose impregnated with a povidone-iodine solution) were applied in two test groups, while fifteen animals were used as a control group without any primary dressing. Aquacel Ag, a clinically used dressing, was selected as the reference material. To compare the efficacy in vivo, the wound size and production of selected cytokines and growth factors (TNF-α, TGF-β1, and VEGF), which play a key role in the healing process, were measured at two, seven, and fourteen days after surgery. The activity of matrix metalloproteinases 2 and 9, which actively participate in cell signalling and are essential for tissue remodelling, was determined in wound tissue by gelatin zymography. A positive effect of the newly developed dressing materials on the healing process, tissue granulation, and wound re-epithelialisation was demonstrated.
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Affiliation(s)
- Alzbeta Kruzicova
- Department of Human Pharmacology and Toxicology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences in Brno, Brno, Czech Republic
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Masaryk University, Brno, Czech Republic
| | - Marta Chalupova
- Department of Human Pharmacology and Toxicology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences in Brno, Brno, Czech Republic
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Masaryk University, Brno, Czech Republic
| | - Gabriela Kuzminova
- Department of Human Pharmacology and Toxicology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences in Brno, Brno, Czech Republic
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Masaryk University, Brno, Czech Republic
| | - Tomas Parak
- Department of Human Pharmacology and Toxicology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences in Brno, Brno, Czech Republic
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Masaryk University, Brno, Czech Republic
| | | | - Tomas Sopuch
- Holzbecher, Ltd. – Bleaching & Dyeing Plant, Zlic, Czech Republic
| | - Pavel Suchy
- Department of Human Pharmacology and Toxicology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences in Brno, Brno, Czech Republic
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Masaryk University, Brno, Czech Republic
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El-Din MAEDS, Ghareeb AEWE, El-Garawani IM, El-Rahman HAA. Induction of apoptosis, oxidative stress, hormonal, and histological alterations in the reproductive system of thiamethoxam-exposed female rats. Environ Sci Pollut Res Int 2023; 30:77917-77930. [PMID: 37266787 PMCID: PMC10299933 DOI: 10.1007/s11356-023-27743-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 05/15/2023] [Indexed: 06/03/2023]
Abstract
The present study aimed to investigate the oral toxic effects of 1/10 LD50 and 1/5 LD50 of thiamethoxam (TMX), a neonicotinoid insecticide, on the reproductive system of female Wistar rats. Thirty female rats were divided into three groups and supplied orally with either; saline solution, 1/10 LD50 of TMX (156 mg/kg) or 1/5 LD50 of TMX (312 mg/kg). The daily administration was extended for 30 days. Investigating the parameters of oxidative stress, hormonal levels, histopathological alterations, and the apoptotic markers (P53, BAX, BCL-2, and caspase-3) was performed in the uterus and ovary of rats. Results showed significant changes in the body weight gain, and relative weight of the left and right ovaries and uterus. Moreover, luteinizing hormone (LH), estradiol (ED), and progesterone (PG) serum levels were not significantly altered following TMX oral administration. The level of follicle-stimulating hormone in the TMX-exposed group (156 mg/kg) was significantly increased; however, a significant decrease was observed in TMX-exposed animals (312 mg/kg). TMX induced significant oxidative stress in exposed groups by reducing the activities of superoxide dismutase (SOD), glutathione (GSH), and catalase (CAT), and elevating malondialdehyde (MDA) levels. Following hematoxylin and eosin staining, the microscopic examination revealed deteriorated luteal cells with vacuolation in the corpus luteum, a follicle containing a degenerated oocyte and degeneration/necrosis of the circular muscle layer with a high rate of apoptotic cells in TMX-exposed animals. TMX induced transcriptional alterations in apoptosis-related genes shifting towards the activation of the intrinsic apoptotic pathway. Collectively, results suggest the toxic effect of the TMX on the reproductive health of female Wistar rats.
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Affiliation(s)
| | | | - Islam M. El-Garawani
- Zoology Department, Faculty of Science, Menoufia University, Shebin El-Kom 32511, Menoufia, Egypt
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Keddar K, Ziar H, Belmadani N, Monnoye M, Gérard P, Riazi A. Probiotic Bacteria from Human Milk Can Alleviate Oral Bovine Casein Sensitization in Juvenile Wistar Rats. Microorganisms 2023; 11:microorganisms11041030. [PMID: 37110453 PMCID: PMC10140966 DOI: 10.3390/microorganisms11041030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
This study aims to see if probiotic bacteria from human milk could ameliorate oral cow's milk sensitization. The probiotic potential of the SL42 strain isolated from the milk of a healthy young mother was first determined. Rats were then randomly gavaged with cow's milk casein without an adjuvant or assigned to the control group. Each group was further subdivided into three groups, with each receiving only Limosilactobacillus reuteri DSM 17938, SL42, or a phosphate-buffered saline solution. Body weight, temperature, eosinophils, serum milk casein-specific IgE (CAS-IgE), histamine, and serum S100A8/A9 and inflammatory cytokine concentrations were measured. The animals were sacrificed after 59 days; histological sections were prepared, and the spleen or thymus weights, as well as the diversity of the gut microbiota, were measured. On days 1 and 59, SL42 abridged systemic allergic responses to casein by dropping histamine levels (25.7%), CAS-specific IgE levels (53.6%), eosinophil numbers (17%), S100A8/9 (18.7%), and cytokine concentrations (25.4-48.5%). Analyses of histological sections of the jejunum confirmed the protective effect of probiotic bacteria in the CAS-challenged groups. Lactic acid bacteria and Clostridia species were also increased in all probiotic-treated groups. These findings suggest that probiotics derived from human milk could be used to alleviate cow's milk casein allergy.
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Affiliation(s)
- Kawtar Keddar
- Laboratoire des Micro-Organismes Bénéfiques, des Aliments Fonctionnels et de la Santé (LMBAFS), Abdelhamid Ibn Badis University, Hocine Hamadou Street, Mostaganem 27000, Algeria
- Laboratoire de Bio-Economie, Sécurité Alimentaire et Santé, Abdelhamid Ibn Badis University, Hocine Hamadou Street, Mostaganem 27000, Algeria
| | - Hasnia Ziar
- Laboratoire des Micro-Organismes Bénéfiques, des Aliments Fonctionnels et de la Santé (LMBAFS), Abdelhamid Ibn Badis University, Hocine Hamadou Street, Mostaganem 27000, Algeria
- Micalis Institute, INRAE, AgroParisTech, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - Noussaiba Belmadani
- Laboratoire des Micro-Organismes Bénéfiques, des Aliments Fonctionnels et de la Santé (LMBAFS), Abdelhamid Ibn Badis University, Hocine Hamadou Street, Mostaganem 27000, Algeria
- Laboratoire de Bio-Economie, Sécurité Alimentaire et Santé, Abdelhamid Ibn Badis University, Hocine Hamadou Street, Mostaganem 27000, Algeria
| | - Magali Monnoye
- Micalis Institute, INRAE, AgroParisTech, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - Philippe Gérard
- Micalis Institute, INRAE, AgroParisTech, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - Ali Riazi
- Laboratoire des Micro-Organismes Bénéfiques, des Aliments Fonctionnels et de la Santé (LMBAFS), Abdelhamid Ibn Badis University, Hocine Hamadou Street, Mostaganem 27000, Algeria
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Khalifa M, Fayed RH, Sedik AA, Khalil HMA. Dose-dependent toxic effects of di-(2-ethylhexyl) phthalate in male rats: Focus on behavioral alterations and inducing TLR4/NF-κB signaling pathway. Toxicol Appl Pharmacol 2023; 468:116515. [PMID: 37061009 DOI: 10.1016/j.taap.2023.116515] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 04/01/2023] [Accepted: 04/12/2023] [Indexed: 04/17/2023]
Abstract
Di -(2-ethylhexyl) phthalate (DEHP) is a widely used phthalate that possesses a public health concern. Different concentrations of DEHP, including 50, 300, and 750 mg/kg, were administrated orally for 28 days in male rats. Body weight and vital organs weight were measured as well as anxiety-like behavior, short and long-term memory were investigated. Brain inflammatory cytokines, including IL-1β, TLR4, NF-κB, TNF-α, and IL1-6, were assessed. Brain caspase-3, neuropeptide-Y (NPY), and brain histopathology were also evaluated. DEHP triggers the release of pro-inflammatory cytokines via inducing the nuclear translocation of the signaling pathway; TLR 4/ NF-κB leads to cognitive impairment and neurodegeneration, which is confirmed by the impaired brain architecture. Also, DEHP upgrades the expression levels of brain caspase-3 and NPY. In conclusion, exposure to high doses of DEHP persuades great toxicity visualized by behavioral, biochemical, and histological impairments when compared to the low dose.
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Affiliation(s)
- Mhasen Khalifa
- Veterinary Hygiene and Management Department, Faculty of Vet. Medicine, Cairo University, Giza 12211, Egypt
| | - R H Fayed
- Veterinary Hygiene and Management Department, Faculty of Vet. Medicine, Cairo University, Giza 12211, Egypt.
| | - Ahmad A Sedik
- Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Center, Giza 12622, Egypt
| | - Heba M A Khalil
- Veterinary Hygiene and Management Department, Faculty of Vet. Medicine, Cairo University, Giza 12211, Egypt
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Jahantigh M, Abtahi Froushani SM, Afzale Ahangaran N. Benefits of bone marrow-derived mesenchymal stem cells primed with estradiol in alleviating collagen-induced arthritis. Iran J Basic Med Sci 2023; 26:400-407. [PMID: 37009006 PMCID: PMC10008397 DOI: 10.22038/ijbms.2023.68112.14882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 01/02/2023] [Indexed: 04/04/2023]
Abstract
Objectives To investigate the effects of the oestradiol (ES) pulsed bone marrow-derived mesenchymal stem cells (BM-MSC) to treat adjuvant-induced arthritis in Wistar rats. Materials and Methods BM-MSCs were pulsed with ES (0, 10,100, and 1000 nM) for 24 hr. RA was induced by collagen and Freund's Complete Adjuvant into the base of the tail of Wistar rats. Results The least effective concentration of ES that can promote potent anti-inflammatory properties in the MSC population is 100 nM. At this concentration, ES increases the inhibition of the polyclonal T lymphocyte proliferation, production of IDO, IL-10, Nitric oxide, and TGF-β, and expression of CXCR4 and CCR2 mRNA in the MSC population. Accordingly, the RA rats were treated with 2×106 MSCs or ES-pulsed MSCs (100 nM) on day 10 when all animals had developed signs of RA. ES-pulsed BM-MSCs reduced the severity of RA more profoundly than treatment with BM-MScs alone. The ability of ES-pulsed BM-MSCs to reduce symptoms and RA markers like CRP, RF, and nitric oxide was comparable to that of prednisolone. Prednisolone was more successful in reducing inflammatory cytokines than treatment with ES-pulsed BM-MSCs. ES-pulsed BM-MSCs were more successful in increasing anti-inflammatory cytokines than treatment with Prednisolone. The ability of ES-pulsed BM-MSCs to decrease the level of nitric oxide was comparable to that of prednisolone. Conclusion ES-pulsed BM-MSCs may be a helpful strategy in RA control.
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Affiliation(s)
- Monireh Jahantigh
- Department of Microbiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Seyyed Meysam Abtahi Froushani
- Department of Microbiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
- Corresponding author: Seyyed Meysam Abtahi Froushani. Department of Microbiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
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Langer Horvat L, Španić Popovački E, Babić Leko M, Zubčić K, Horvat L, Mustapić M, Hof PR, Šimić G. Anterograde and Retrograde Propagation of Inoculated Human Tau Fibrils and Tau Oligomers in a Non-Transgenic Rat Tauopathy Model. Biomedicines 2023; 11:biomedicines11041004. [PMID: 37189622 DOI: 10.3390/biomedicines11041004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 05/17/2023] Open
Abstract
The tauopathy of Alzheimer's disease (AD) is first observed in the brainstem and entorhinal cortex, spreading trans-synaptically along specific pathways to other brain regions with recognizable patterns. Tau propagation occurs retrogradely and anterogradely (trans-synaptically) along a given pathway and through exosomes and microglial cells. Some aspects of in vivo tau spreading have been replicated in transgenic mice models expressing a mutated human MAPT (tau) gene and in wild-type mice. In this study, we aimed to characterize the propagation of different forms of tau species in non-transgenic 3-4 months old wild-type rats after a single unilateral injection of human tau oligomers and tau fibrils into the medial entorhinal cortex (mEC). We determined whether different variants of the inoculated human tau protein, tau fibrils, and tau oligomers, would induce similar neurofibrillary changes and propagate in an AD-related pattern, and how tau-related pathological changes would correlate with presumed cognitive impairment. We injected human tau fibrils and tau oligomers stereotaxically into the mEC and examined the distribution of tau-related changes at 3 days and 4, 8, and 11 months post-injection using antibodies AT8 and MC1, which reveal early phosphorylation and aberrant conformation of tau, respectively, HT7, anti-synaptophysin, and the Gallyas silver staining method. Human tau oligomers and tau fibrils exhibited some similarities and some differences in their ability to seed and propagate tau-related changes. Both human tau fibrils and tau oligomers rapidly propagated from the mEC anterogradely into the hippocampus and various parts of the neocortex. However, using a human tau-specific HT7 antibody, 3 days post-injection we found inoculated human tau oligomers in the red nucleus, primary motor, and primary somatosensory cortex, a finding not seen in animals inoculated with human tau fibrils. In animals inoculated with human tau fibrils, 3 days post-injection the HT7 antibody showed fibrils in the pontine reticular nucleus, a finding explained only by uptake of human tau fibrils by incoming presynaptic fibers to the mEC and retrograde transport of inoculated human tau fibrils to the brainstem. Rats inoculated with human tau fibrils showed as early as 4 months after inoculation a spread of phosphorylated tau protein at the AT8 epitopes throughout the brain, dramatically faster propagation of neurofibrillary changes than with human tau oligomers. The overall severity of tau protein changes 4, 8, and 11 months after inoculation of human tau oligomers and tau fibrils correlated well with spatial working memory and cognition impairments, as measured by the T-maze spontaneous alternation, novel object recognition, and object location tests. We concluded that this non-trangenic rat model of tauopathy, especially when using human tau fibrils, demonstrates rapidly developing pathologic alterations in neurons, synapses, and identifiable pathways together with cognitive and behavioral changes, through the anterograde and retrograde spreading of neurofibrillary degeneration. Therefore, it represents a promising model for future experimental studies of primary and secondary tauopathies, especially AD.
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Affiliation(s)
- Lea Langer Horvat
- Department of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, Croatia
| | - Ena Španić Popovački
- Department of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, Croatia
| | - Mirjana Babić Leko
- Department of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, Croatia
| | - Klara Zubčić
- Department of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, Croatia
| | - Luka Horvat
- Department of Molecular Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
| | - Maja Mustapić
- Laboratory of Clinical Investigation, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Patrick R Hof
- Nash Family Department of Neuroscience, Friedman Brain Institute, and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Goran Šimić
- Department of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, Croatia
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Bayat M, Daei S, Ziamajidi N, Abbasalipourkabir R, Nourian A. The protective effects of vitamins A, C, and E on zinc oxide nanoparticles (ZnO NPs)-induced liver oxidative stress in male Wistar rats. Drug Chem Toxicol 2023; 46:209-218. [PMID: 34915775 DOI: 10.1080/01480545.2021.2016809] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The ever-increasing use of zinc oxide nanoparticles (ZnO NPs) in industrial and consumer products leads to concerns about their safety. Liver is one of the most important target organs of nanoparticles after entering the body. As such, the aim of this study was to evaluate the protective effects of vitamins (Vit) A, C, and E on ZnO NPs-induced liver oxidative stress. For this task, 54 male Wistar rats were randomly divided into nine groups of six: control 1 (water), control 2 (olive oil), Vit A (1000 IU/kg), Vit C (200 mg/kg), Vit E (100 IU/kg), ZnO (200 mg/kg), ZnO + VitA, ZnO + VitC, and ZnO + VitE. The animals received ZnO for 2 weeks while treatment with Vit started one week before the ZnO administration. In order to specify oxidative stress status, total antioxidant capacity (TAC), total oxidative status and malondialdehyde were determined by colorimetric assay. In addition, the activity and gene expression of antioxidant enzymes including superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) were evaluated by colorimetric assay kit and qRT-PCR, respectively. Moreover, histological analysis was conducted to estimate the extent of liver damage. Our results indicate that the oxidative parameters are increased while the content of TAC, antioxidant enzymes activity, and gene expression of SOD, GPX, and CAT show a significant reduction in the liver of ZnO-treated rats compared to the control (p< 0.05). In contrast, the administration of Vit could significantly modulate the aforementioned changes. Overall, Vit A, E, and C can mitigate oxidative stress caused by ZnO NPs.
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Affiliation(s)
- Mojtaba Bayat
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamedan, Iran
| | - Sajedeh Daei
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamedan, Iran
| | - Nasrin Ziamajidi
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamedan, Iran.,Molecular Medicine Research Center, Hamadan University of Medical Science, Hamedan, Iran
| | - Roghayeh Abbasalipourkabir
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamedan, Iran
| | - Alireza Nourian
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
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Abdel-Razek HAD, Rizk MS, Amer GS, Kora MA, Afifi AM, Donia SS. Impact of combined ischemic preconditioning and melatonin on renal ischemia-reperfusion injury in rats. Iran J Basic Med Sci 2023; 26:235-240. [PMID: 36742133 PMCID: PMC9869875 DOI: 10.22038/ijbms.2022.67127.14722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 11/16/2022] [Indexed: 02/07/2023]
Abstract
Objectives Studying the effect of melatonin pretreatment and ischemic preconditioning on renal ischemia-reperfusion injury (IRI). Materials and Methods Forty-eight Wistar rats were randomized into six groups: control, sham operation, IRI (IRI in left kidney + right nephrectomy), IRI+ischemic preconditioning, IRI+Melatonin, and IRI+ischemic preconditioning+Melatonin groups. Melatonin (10 mg/kg) was intraperitoneally injected for 4 weeks before renal IRI. Ischemic preconditioning was performed by three cycles of 2 min-ischemia followed by 5 min-reperfusion period. A right nephrectomy was initially done and the left renal artery was clamped for 45 min. After 24 hr of ischemia-reperfusion, rats were decapitated. Kidney tissue samples were taken for histopathological assessment and the determination of kidney proinflammatory and anti-inflammatory cytokines, apoptotic protein caspase-3, oxidative stress markers, and activities of antioxidant enzymes. Serum creatinine and blood urea nitrogen (BUN) concentrations were measured for evaluation of renal function. Results Renal IRI animals showed increased levels of creatinine, BUN, tumor necrosis factor-α (TNF-α), caspase-3, total nitrite/nitrate, and malondialdehyde (MDA), and decreased levels of interleukin-13 (IL-13), and activities of glutathione peroxidase (GPx) and superoxide dismutase (SOD). Melatonin pretreatment or ischemic preconditioning resulted in decreased creatinine, BUN, TNF-α, caspase-3, nitrite/nitrate, and MDA, and increased IL-13, GPx, and SOD, with improved histopathological changes. Combined melatonin and ischemic preconditioning showed more effective improvement in renal IRI changes rather than melatonin or ischemic preconditioning alone. Conclusion Combined melatonin and ischemic preconditioning have better beneficial effects on renal IRI than applying each one alone.
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Affiliation(s)
- Hesham AD Abdel-Razek
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Shebein El-Koum, Egypt
| | - Mohamed Soliman Rizk
- Department of Medical Biochemistry & Molecular Biology, Faculty of Medicine, Menoufia University, Shebein El-Koum, Egypt
| | - Ghada S Amer
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Shebein El-Koum, Egypt
| | - Mona A Kora
- Department of Pathology, Faculty of Medicine, Menoufia University, Shebein El-Koum, Egypt
| | - Aya M Afifi
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Shebein El-Koum, Egypt,Corresponding author: Aya Mohamed Afifi. Department of Medical Physiology, Faculty of Medicine, Menoufia University, Shebein El-Koum, Egypt. Tel: +201009150026;
| | - Sally S Donia
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Shebein El-Koum, Egypt
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21
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Pace V, Cattani F. Stress-related testicular changes in Wistar and Sprague-Dawley rats following oral administration of an interleukin-8 inhibitor. Toxicology 2023; 484:153395. [PMID: 36549503 DOI: 10.1016/j.tox.2022.153395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/01/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
We describe testicular changes in Wistar and Sprague-Dawley rats following oral administration of DF2156A, a novel allosteric inhibitor of the CXCR1/CXCR2 receptors of interleukin-8. These testicular changes, which were associated with clinical signs, modifications of body weight parameters (decrease of body weight and weight gain) and a decrease of testosterone serum levels, were not considered to be a direct toxic effect of the test substance but secondary to a likely induced stress resulting from the oral administration of a high dose (200 mg/kg/day) of the test substance to male rats for a period of six weeks. Testicular changes consisted of seminiferous tubules atrophy and germinal cell degeneration and only occurred in animals presenting clinical signs of transient visible weight loss, ruffled fur and/or weakened condition, and/or decreased body weight and weight gain. A decrease in serum testosterone levels was only observed in those Sprague-Dawley rats affected by decreased body weight, weight gain and testicular changes. Only a single Wistar rat with testicular changes exhibited relevant reduced levels of circulating testosterone. Sperm analysis in terms of motility, morphology and number of sperm cells was altered in males presenting with morphological changes in the testes. Sprague-Dawley rats with testicular changes were more numerous and with more pronounced lesions than were Wistar rats.
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Affiliation(s)
- Virgilio Pace
- Preclin Consulting GmbH, Kirschgartenstrasse 2, CH-4132 Muttenz, Switzerland.
| | - Franca Cattani
- Dompé Farmaceutici spa, Via Campo Di Pile, 67100 L'Aquila, Italy.
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22
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Bueno FR, Spinelli de Oliveira E, Klein W. Effects of water restriction and dirt on grooming behavior in neotropical rodents (Trinomys setosus and T. yonenagae) (Echimyidae). Behav Processes 2023; 204:104781. [PMID: 36402407 DOI: 10.1016/j.beproc.2022.104781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 11/10/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
Grooming in rodents presents an evolutionarily conserved behavioral pattern that may cause water loss since saliva is deposited during washing onto large body surfaces. Trinomys yonenagae and Trinomys setosus are sister species of spiny rats occurring in Brazil, the former inhabiting a paleodesert of fixed dunes in the Caatinga, the latter being found in mesic environments of the Atlantic Forest. Consequently, it is expected that both species evolved under different selective pressures related to water balance, with T. yonenagae presenting mechanisms for dealing with water deprivation not found in T. setosus. Reduction of self-cleaning expression seems to offer a possible way to save water, as previously suggested by studies of the sand-dwelling spiny rat. Therefore, we propose to investigate grooming under four conditions: 'control' (C), a regimen of 'water restriction' (WR), of 'dirt' (D), and the combination of both conflicting stimuli (WR + D), in T. setosus, T. yonenagae, and Rattus norvegicus to compare the behavioral responses of these species. The main differences are observed in the forest dweller: T. setosus expresses a low relative duration of face washing under C, whose value is intermediate between the ones found in the two other species. WR treatment does not alter this pattern, however, the addition of dirt (D, WR + D) significantly increases the relative duration of washing in relation to C. Locomotor activity is decreased both in T. setosus and Wistar rats when they are under WR, a situation that could jeopardize antipredatory performance. T. yonenagae, the sand dweller, maintains a significantly lower expression of washing under C, as previously suggested, and under WR, D and WR + D. In addition, differently from the other two species the sand dweller maintains a normal activity level during all treatments. This study suggests differences in grooming as a strategy alluding to water balance by the two spiny rats inhabiting different ecosystems. A significantly clear pattern that saves water is observed in T. yonenagae, which probably has contributed to his evolution in one of the hottest semiarid areas of the world.
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Affiliation(s)
- Flávia Regina Bueno
- Programa de Pós-Graduação em Psicobiologia, Departamento de Psicologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Bairro Monte Alegre, CEP 14040-901 Ribeirão Preto, São Paulo, Brazil.
| | - Elisabeth Spinelli de Oliveira
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Bairro Monte Alegre, CEP 14040-901 Ribeirão Preto, São Paulo, Brazil
| | - Wilfried Klein
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Bairro Monte Alegre, CEP 14040-901 Ribeirão Preto, São Paulo, Brazil
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Alam N, Najnin H, Islam M, Shakya S, Khan IM, Zaidi R. Biochemical and histopathological analysis after sub-chronic administration of oxyresveratrol in Wistar rats. Drug Chem Toxicol 2023; 46:166-175. [PMID: 34913788 DOI: 10.1080/01480545.2021.2015243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Oxyresveratrol (OXY) is a naturally occurring phenolic compound; however, there are no toxicity studies reported on its long term use. The aim of our work was to demonstrate the evaluation of acute and sub-chronic toxicity of oxyresveratrol in rats to assess its safety profile. To evaluate the LD50 value, 2000 mg/kg of oxyresveratrol was administered to Wistar rats by oral gavage. For sub-chronic toxicity assessment, 80 Wistar rats were randomly divided into four groups (10 animal/sex/group) and oxyresveratrol administered at a dose of 50, 100, 150 mg/kg/day by oral gavage. Bodyweight, food, and water consumption were monitored every week. At the end of the experiments, biochemical and hematological parameters were analyzed. Gross and microscopic organ analyses were also carried out. LD50 of oxyresveratrol was greater than 2000 mg/kg sub-chronic administration of oxyresveratrol did not influence any mortality. Doses of 50 and 100 mg/kg of oxyresveratrol did not produce any sign of toxicity. However, the 150 mg/kg oxyresveratrol group depicted changes in multiple biochemical and hematological parameters with changes in the pathology of cardiac, hepatic, and renal tissues when compared with control. Therefore, no observed adverse effect level (NOAEL) of oxyresveratrol was observed to be 100 mg/kg per day for both male and female rats.
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Affiliation(s)
- Nisat Alam
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Hasina Najnin
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Maidul Islam
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh, India
| | - Sonam Shakya
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh, India
| | - Ishaat M Khan
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh, India
| | - Rana Zaidi
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
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Teker HT, Ceylani T. Intermittent fasting supports the balance of the gut microbiota composition. Int Microbiol 2023; 26:51-7. [PMID: 35953616 DOI: 10.1007/s10123-022-00272-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 01/06/2023]
Abstract
There is a growing body of detailed research demonstrating that intermittent fasting is essentially a cleansing activity in terms of health. Especially since its applications that exceed 16 h trigger autophagy, it continues its effect on all tissue and organ systems after the regeneration movement that starts at the cellular level. Similarly, it continues to be better understood with each passing day that the gut microbiota (GM) has many positive effects on all tissue and organ systems. Although the GM is affected by many different parameters, dietary habits are reported to be the most effective factor. Therefore, it is important to investigate the effects of different preferred fasting practices on the GM, which has numerous health benefits. Pointing out this situation, this study aims to determine the effects of 18-h intermittent fasting for 5 weeks on the shaping of GM. A 12-month-old male Wistar rat was chosen as the model organism in the study. At the end of the application, the metagenome was applied to the cecum content of the intestinal tissue collected from the sacrificed animals. Intermittent fasting practice led to an increase in alpha diversity, which expresses a significant bacterial diversity, the stabilization of Firmicutes and Bacteroidetes ratios (F/B), and the reshaping of the values with the highest prevalence in all stages of the classification, especially in the family, genus, and species care. Analysis results showed that the preferred intermittent fasting program helps balance the GM composition. This study is an important example showing the strong positive link between intermittent fasting and GM.
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Quintana-Pérez JC, García-Dolores F, Valdez-Guerrero AS, Alemán-González-Duhart D, Arellano-Mendoza MG, Rojas Hernández S, Olivares-Corichi IM, García Sánchez JR, Trujillo Ferrara JG, Tamay-Cach F. Modeling type 2 diabetes in rats by administering tacrolimus. Islets 2022; 14:114-127. [PMID: 35348048 PMCID: PMC8966987 DOI: 10.1080/19382014.2022.2051991] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The prevalence of diabetes is rapidly increasing. The current number of diagnosed cases is ~422 million, expected to reach ~640 million by 2040. Type 2 diabetes, which constitutes ~95% of the cases, is characterized by insulin resistance and a progressive loss of β-cell function. Despite intense research efforts, no treatments are yet able to cure the disease or halt its progression. Since all existing animal models of type 2 diabetes have serious drawbacks, one is needed that represents the complete pathogenesis, is low cost and non-obese, and can be developed relatively quickly. The aim of this study was to evaluate a low-cost, non-obese model of type 2 diabetes engendered by administering a daily high dose of tacrolimus (an immunosuppressant) to Wistar rats for 4 weeks. The biochemical and antioxidant markers were measured at basal and after the 4-week tacrolimus treatment. At week 4, the values of these parameters closely resembled those observed in human type 2 diabetes, including fasting blood glucose at 141.5 mg/dL, blood glucose greater than 200 mg/dL at 120 min of the glucose tolerance test, blood glucose at varied levels in the insulin tolerance test, and elevated levels of cholesterol and triglyceride. The tacrolimus treatment produced hypoinsulinemia and sustained hyperglycemia, probably explained by the alteration found in pancreatic β-cell function and morphology. This model should certainly be instrumental for evaluating possible type 2 diabetes treatments, and for designing new immunosuppressants that do not cause pancreatic damage, type 2 diabetes, or new-onset diabetes after transplantation (NODAT).
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Affiliation(s)
- JC Quintana-Pérez
- Laboratorio de Investigación en Bioquímica Aplicada, Sección de Estudios de Posgrado e Investigación y Departamento de Formación Básica Disciplinaria, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas,Miguel Hidalgo, Ciudad de México, México
| | - F García-Dolores
- Departamento de Patología, Instituto de Servicios Periciales y Ciencias Forenses, Tribunal Superior de Justicia de la Ciudad de México, Ciudad de México, México
| | - AS Valdez-Guerrero
- Laboratorio de Investigación en Bioquímica Aplicada, Sección de Estudios de Posgrado e Investigación y Departamento de Formación Básica Disciplinaria, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas,Miguel Hidalgo, Ciudad de México, México
| | - D Alemán-González-Duhart
- Laboratorio de Investigación en Bioquímica Aplicada, Sección de Estudios de Posgrado e Investigación y Departamento de Formación Básica Disciplinaria, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas,Miguel Hidalgo, Ciudad de México, México
| | - MG Arellano-Mendoza
- Laboratorio de Investigación en Enfermedades Crónico Degenerativas, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas, Miguel Hidalgo, Ciudad de México, México
| | - S Rojas Hernández
- Laboratorio de Inmunología Celular y Molecular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas, Miguel Hidalgo, Ciudad de México, México
| | - IM Olivares-Corichi
- Laboratorio de Estrés Oxidativo, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas, Ciudad de México, México
| | - JR García Sánchez
- Laboratorio de Estrés Oxidativo, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas, Ciudad de México, México
| | - JG Trujillo Ferrara
- Laboratorio de Investigación en Bioquímica Aplicada, Sección de Estudios de Posgrado e Investigación y Departamento de Formación Básica Disciplinaria, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas,Miguel Hidalgo, Ciudad de México, México
| | - F Tamay-Cach
- Laboratorio de Investigación en Bioquímica Aplicada, Sección de Estudios de Posgrado e Investigación y Departamento de Formación Básica Disciplinaria, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas,Miguel Hidalgo, Ciudad de México, México
- CONTACT F Tamay-Cach Laboratorio de Investigación en Bioquímica Aplicada, Sección de Estudios de Posgrado e Investigación y Departamento de Formación Básica Disciplinaria, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Casco de Santo Tomas, Miguel Hidalgo, Ciudad de México11340, México. JG TrujilloFerrara
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Pinto CA, Fonseca BM, Sá SI. Effects of chronic tamoxifen treatment in female rat sexual behaviour. Heliyon 2022; 8:e12362. [PMID: 36593822 PMCID: PMC9803792 DOI: 10.1016/j.heliyon.2022.e12362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 09/05/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
The medial preoptic (MPN) and the ventromedial hypothalamic nuclei (VMN) modulate the estrogen receptor (ER)-dependent female sexual behavior, a response that is inhibited by tamoxifen (TAM), a modulator of the steroid receptor activation. With the objective to assess TAM action in the brain areas involved in the modulation sexual cues, an animal model on long-term TAM therapy to intact female rats, was used to mimic the 5-year prophylactic TAM therapy offered to women at higher risk of breast cancer. After three months treatment, female sexual behavior with a stud male rat was evaluated. Upon sacrifice, the brains were removed and the MPN and the ventrolateral division of the VMN were screened for the effects of TAM in the expression of ERα, ERβ and progesterone receptor. Results show that TAM inhibited the receptive component of the female sexual behavior. Even though TAM decreased estrogen and progesterone levels to values similar to the ones of estrous and diestrus rats, the biochemical data failed to demonstrate such possible causation for the behavioral response. In fact, TAM administration induced a constant low level of ovarian hormones that changed the pattern of ER and PR expression as well as receptor co-expression in the brain areas regulating the behavioral response, dissimilar to the ones seen in the cycle phases with the same low hormone levels. Nevertheless, present data suggests that by affecting ER- and/or PR-dependent mechanisms, TAM may modulate the hypothalamus, a region known to participate in several social behaviors.
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Affiliation(s)
- Cláudia A. Pinto
- Unit of Anatomy, Department of Biomedicine, Faculty of Medicine, University of Porto, Al Professor Hernani Monteiro, 4200-319 Porto, Portugal
| | - Bruno M. Fonseca
- UCIBIO, REQUIMTE, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira nº. 228, 4050-313 Porto, Portugal
| | - Susana I. Sá
- Unit of Anatomy, Department of Biomedicine, Faculty of Medicine, University of Porto, Al Professor Hernani Monteiro, 4200-319 Porto, Portugal,CINTESIS@RISE Unit of Anatomy, Department of Biomedicine, Faculty of Medicine, University of Porto. Al Professor Hernani Monteiro, 4200-319 Porto, Portugal,Corresponding author.
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Carmona-Torre F, Fernández-Ciriza L, Berniz C, Gomez-Martinez de Lecea C, Ramos A, Hontanilla B, del Pozo JL. An Experimental Murine Model to Assess Biofilm Persistence on Commercial Breast Implant Surfaces. Microorganisms 2022; 10:microorganisms10102004. [PMID: 36296280 PMCID: PMC9611056 DOI: 10.3390/microorganisms10102004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/29/2022] [Accepted: 10/08/2022] [Indexed: 11/16/2022] Open
Abstract
Capsular contracture is the most frequently associated complication following breast implant placement. Biofilm formation on the surface of such implants could significantly influence the pathogenesis of this complication. The objective of this study was to design an experimental model of breast implant infection that allowed us to compare the in vivo S. epidermidis ability to form and perpetuate biofilms on commonly used types of breast implants (i.e., macrotexturized, microtexturized, and smooth). A biofilm forming S. epidermidis strain (ATCC 35984) was used for all experiments. Three different implant surface types were tested: McGhan BIOCELL® (i.e., macrotexturized); Mentor Siltex® (i.e., microtexturized); and Allergan Natrelle Smooth® (i.e., smooth). Two different infection scenarios were simulated. The ability to form biofilm on capsules and implants over time was evaluated by quantitative post-sonication culture of implants and capsules biopsies. This experimental model allows the generation of a subclinical staphylococcal infection associated with a breast implant placed in the subcutaneous tissue of Wistar rats. The probability of generating an infection was different according to the type of implant studied and to the time from implantation to implant removal. Infection was achieved in 88.9% of macrotextured implants (i.e., McGhan), 37.0% of microtexturized implants (i.e., Mentor), and 18.5% of smooth implants (i.e., Allergan Smooth) in the short-term (p < 0.001). Infection was achieved in 47.2% of macrotextured implants, 2.8% of microtexturized implants, and 2.8% of smooth implants (i.e., Allergan Smooth) in the long-term (p < 0.001). There was a clear positive correlation between biofilm formation on any type of implant and capsule colonization/infection. Uniformly, the capsules formed around the macro- or microtexturized implants were consistently macroscopically thicker than those formed around the smooth implants regardless of the time at which they were removed (i.e., 1−2 weeks or 3−5 weeks). We have shown that there is a difference in the ability of S epidermidis to develop in vivo biofilms on macrotextured, microtextured, and smooth implants. Smooth implants clearly thwart bacterial adherence and, consequently, biofilm formation and persistence are hindered.
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Affiliation(s)
- Francisco Carmona-Torre
- Infectious Diseases Division, Clínica Universidad de Navarra, 31008 Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain
| | | | - Carlos Berniz
- Department of Plastic Surgery, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | | | - Ana Ramos
- Microbiology Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Bernardo Hontanilla
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain
- Department of Plastic Surgery, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Jose L. del Pozo
- Infectious Diseases Division, Clínica Universidad de Navarra, 31008 Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain
- Microbiology Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain
- Correspondence: ; Tel.: +34-948-255-400
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Migliaccio V, Putti R, Scudiero R. Metallothionein gene expression in rat tissues: response to dietary restriction after orally dichlorodiphenyldichloroethylene (DDE) exposure and high-fat feeding. J Environ Sci Health B 2022; 57:859-864. [PMID: 36173099 DOI: 10.1080/03601234.2022.2127594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Dichlorodiphenyldichloroethylene (DDE) is an environmental pollutant that accumulates in adipose tissue through the food chain. Hypercaloric, high-fat diet is considered to promote the accumulation of toxic lipophilic substances in tissues, whereas the loss of body fat through caloric restriction results in a recirculation of these substances. In rats, oral administration of DDE causes the onset of tissues damage; the concomitant intake of a high-fat diet ameliorates tissues status, probably because of the entrapment of the lipophilic substance in fat depots. Recent evidence demonstrates that DDE alters the expression of metallothioneins, proteins involved in cellular defense from oxidative stress, in a diet- and tissue-specific manner. This study is aimed to verify if 2 weeks of caloric restriction after the oral DDE treatment can modify metallothionein gene expression in tissues of high-fat fed rats. Real-time PCR analysis demonstrates that metallothionein gene expression after calorie restriction is tissue-specific and strongly influenced by both previous dietary conditions and DDE exposure. To avoid misleading conclusions on the interference of toxic xenobiotics on metallothionein gene expression is particularly important to consider the tissue, the cellular conditions, and the nutritional status of the animals, especially when the protein is used as an index of cells health.
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Affiliation(s)
- Vincenzo Migliaccio
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Fisciano (Sa), Italy
| | - Rosalba Putti
- Department of Biology, University Federico II, Napoli, Italy
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Zelleroth S, Nylander E, Kjellgren E, Grönbladh G, Hallberg M. Nandrolone decanoate and testosterone undecanoate differently affect stress hormones, neurotransmitter systems, and general activity in the male rat. Behav Brain Res 2022; 432:113971. [PMID: 35738337 DOI: 10.1016/j.bbr.2022.113971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/03/2022] [Accepted: 06/14/2022] [Indexed: 11/16/2022]
Abstract
Anabolic androgenic steroids (AAS) are frequently used to improve physical appearance and strength. AAS are known to affect muscle growth, but many AAS-users also experience psychiatric and behavioral changes after long-term use. The AAS-induced effects on the brain seem to depend on the type of steroid used, but the rationale behind the observed effect is still not clear. The present study investigated and compared the impact of nandrolone decanoate and testosterone undecanoate on body weight gain, levels of stress hormones, brain gene expression, and behavioral profiles in the male rat. The behavioral profile was determined using the multivariate concentric squared field test (MCSF-test). Blood plasma and brains were collected for further analysis using ELISA and qPCR. Nandrolone decanoate caused a reduction in body weight gain in comparison with both testosterone undecanoate and control. Rats receiving nandrolone decanoate also demonstrated decreased general activity in the MCSF. In addition, nandrolone decanoate reduced the plasma levels of ACTH in comparison with the control and increased the levels of corticosterone in comparison with testosterone undecanoate. The qPCR analysis revealed brain region-dependent changes in mRNA expression, where the hypothalamus was identified as the region most affected by the AAS. Alterations in neurotransmitter systems and stress hormones may contribute to the changes in behavior detected in the MCSF. In conclusion, both AAS affect the male rat, although, nandrolone decanoate has more pronounced impact on the physiological and the behavioral parameters measured.
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Affiliation(s)
- Sofia Zelleroth
- The Beijer laboratory, Department of Pharmaceutical Biosciences, Neuropharmacology and Addiction Research, SE-751 24 Uppsala University, Sweden.
| | - Erik Nylander
- The Beijer laboratory, Department of Pharmaceutical Biosciences, Neuropharmacology and Addiction Research, SE-751 24 Uppsala University, Sweden.
| | - Ellinor Kjellgren
- The Beijer laboratory, Department of Pharmaceutical Biosciences, Neuropharmacology and Addiction Research, SE-751 24 Uppsala University, Sweden.
| | - GronbladhAlfhild Grönbladh
- The Beijer laboratory, Department of Pharmaceutical Biosciences, Neuropharmacology and Addiction Research, SE-751 24 Uppsala University, Sweden.
| | - Mathias Hallberg
- The Beijer laboratory, Department of Pharmaceutical Biosciences, Neuropharmacology and Addiction Research, SE-751 24 Uppsala University, Sweden.
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Zamora-Bello I, Hernandez-Baltazar D, Rodríguez-Landa JF, Rivadeneyra-Domínguez E. Optimizing rat and human blood cells sampling for in silico morphometric analysis. Acta Histochem 2022; 124:151917. [PMID: 35716583 DOI: 10.1016/j.acthis.2022.151917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 05/31/2022] [Accepted: 06/07/2022] [Indexed: 11/01/2022]
Abstract
Measurements of Morphometric Parameters of the Blood Cells (MPBC) are key for the diagnosis of both mental and metabolic diseases. Several manual approaches or computational methodologies are useful to provide reliable clinical diagnosis. The sample processing and data analysis is relevant, however the sample handling on the pre-analytical phase remains scarcely evaluated. The main goal of this study was to favor the preservation of blood smear using a histological resin. This strategy lead us two practical approaches, give a detailed morphometric description of white blood cells and establish reference intervals in male Wistar rats, which are scarcely reported. Blood smears from male Wistar rats (n = 120) and adult men were collected at room temperature. The integrity of Wright-stained cells was evaluated by an in silico image analysis from rat and human blood smear preserved with a toluene-based synthetic resin mounting medium. A single sample of human blood was used as a control of procedure. The reference intervals was established by cell counting. Based on the results of segmentation algorithm followed by an automatic thresholding analysis, the incorporation of resin favor the conservation of cell blood populations, and lead to identify morphologic features such as nucleus/cytoplasmic shape, granules presence and DNA appearance in nucleus of white blood cells. The use of a histological resin could favor a fast and efficient sample handling in silico MPBC measurements both in the species studied as in wild animals.
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Affiliation(s)
- Isaac Zamora-Bello
- Facultad de Química Farmacéutica Biológica, Universidad Veracruzana, Xalapa, Veracruz, Mexico.
| | - Daniel Hernandez-Baltazar
- Investigadoras e investigadores por México. Consejo Nacional de Ciencia y Tecnología (CONACyT), CDMX, Mexico; Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, Mexico.
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Oudbor L, Mokhtari Z, Dastghaib S, Mokarram P, Rajani HF, Barazesh M, Salami S. Aqueous extract of Stevia rebaudiana (Bertoni) Bertoni abrogates death-related signaling pathways via boosting the expression profile of oxidative defense systems. J Food Biochem 2022; 46:e14151. [PMID: 35365911 DOI: 10.1111/jfbc.14151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 02/19/2022] [Accepted: 02/23/2022] [Indexed: 12/01/2022]
Abstract
Indigenous inhabitants of South America and other areas have been using stevia as a traditional medicine for years, but its impact on cell signaling pathways has not been well studied yet. We evaluated the impacts of aqueous extract of Stevia rebaudiana (Bertoni) Bertoni on the expression of the selected genes involved in significant cell death modalities, including p53-DNA damage and the cellular antioxidative defense in pancreatic tissues in STZ-induced diabetic rats and murine pancreatic cell lines. The in vivo study revealed that aqueous extract of Stevia significantly upregulated the expression of GSTM1 and P1 and GPX (4.67, 12.08, and 2.81 fold, respectively; all p < .05) along with significant downregulation of the genes which were upregulated by STZ, including apoptotic genes caspase-3 and -9 (-9.80 and -4.16 fold, p < .05, respectively) and necroptotic genes, RIP1K, 2 K, and 3 K (-9.48, -2.70, and -12.9 fold, respectively, all p < .05). In vitro studies also revealed comparable results. In conclusion, the observed clinical improvements in diabetic rats are the result of overexpression of major genes of antioxidative defense systems in the course of a significant downregulation of major cell death modalities. PRACTICAL APPLICATIONS: The popularity of noncaloric sweeteners, including stevia, has rocketed in recent years, but the consumption of stevia as traditional medicine has a long history. The findings of the current study provide strong mechanistic lines of evidence supporting the beneficial biological effects of stevia as a noncaloric sweetener in diabetes.
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Affiliation(s)
- Leila Oudbor
- Cell Death and Differentiation Signaling Research Lab, Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zohreh Mokhtari
- Cell Death and Differentiation Signaling Research Lab, Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sanaz Dastghaib
- Department of Clinical Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Pooneh Mokarram
- Department of Clinical Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Huda Fatima Rajani
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Barazesh
- School of Paramedical Sciences, Gerash Faculty of Medical Sciences, Gerash, Iran
| | - Siamak Salami
- Cell Death and Differentiation Signaling Research Lab, Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Najman K, Sadowska A, Buczak K, Leontowicz H, Leontowicz M. Effect of Heat-Treated Garlic ( Allium sativum L.) on Growth Parameters, Plasma Lipid Profile and Histological Changes in the Ileum of Atherogenic Rats. Nutrients 2022; 14:nu14020336. [PMID: 35057517 PMCID: PMC8779480 DOI: 10.3390/nu14020336] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 02/06/2023] Open
Abstract
Dietary supplementation with raw garlic has a preventive and healing effect in cardiovascular diseases, but it could also damage the intestinal mucosa, resulting in impairment of nutrient absorption. Garlic processing, including heat treatment, changes the content and biological activity of garlic, so it is crucial to find food-processing methods that will preserve the health-promoting properties of garlic while minimizing its negative impact on the digestive system. Therefore, in this study, the effect of garlic (Allium sativum L.) on growth parameters, plasma lipid profile, and morphological parameters in the ileum of Wistar rats subjected to various types of heat treatment (90 s blanching garlic, 10 min boiling in water, 10 min pan frying without fat, microwave heating fresh garlic, 90 s blanching and microwave heating garlic, 10 min boiling in water and microwave heating garlic, and 10 min pan frying without fat and microwave heating garlic) was determined in an atherogenic diet (containing 1% addition of cholesterol). In the conducted research, it was found that the diet supplemented with heat-treated garlic used in the atherogenic diet improved the consumption and growth parameters of rats, depending on the type and time of its use. The highest consumption was recorded in atherogenic groups supplemented with garlic subjected to a longer (10 min) heat treatment and was then heated in a microwave oven. Garlic subjected to the shortest heat treatment proved to be most effective, and a significant improvement in the lipid profiles of rats' plasma with atherogenic was observed. Extending the time of heat treatment of garlic and, additionally, its microwaving significantly weakened the action of garlic in the body, but still retained its hypolipidemic effect. The greatest influence on the structural changes in the mucosa of the rats' iliac intestine, manifested by degeneration of the mucosa, shortening the length of the intestinal villi, damage to the brush border, and thus impairment of the intestinal absorption, was exerted by supplementing the atherogenic diet with garlic subjected to short-term heat treatment. Among the processes used, blanching was the least favorable, and the long-lasting thermal processes (cooking, frying for 10 min) had a positive effect on the mucosa of the rats' intestines. The results obtained in this study confirm that the selection of an appropriate method of thermal processing of garlic may allow for the maintenance of preventive and therapeutic efficacy of garlic in cardiovascular diseases, while ensuring the safety of its long-term use in the context of degenerative changes in the gastrointestinal tract.
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Affiliation(s)
- Katarzyna Najman
- Department of Functional and Organic Food, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, Nowoursynowska 159c, 02-776 Warsaw, Poland;
- Correspondence: ; Tel.: +48-22-59-370-55
| | - Anna Sadowska
- Department of Functional and Organic Food, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, Nowoursynowska 159c, 02-776 Warsaw, Poland;
| | - Krzysztof Buczak
- Department of Surgery, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Science, Pl. Grunwadzki 51, 50-366 Wroclaw, Poland;
| | - Hanna Leontowicz
- Department of Physiological Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland; (H.L.); (M.L.)
| | - Maria Leontowicz
- Department of Physiological Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland; (H.L.); (M.L.)
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Dana P, Hayati Roodbari N, Yaghmaei P, Hajebrahimi Z. Effects of empagliflozin on the expression of kisspeptin gene and reproductive system function in streptozotocin-induced diabetic male rats. Front Endocrinol (Lausanne) 2022; 13:1059942. [PMID: 36479221 PMCID: PMC9719967 DOI: 10.3389/fendo.2022.1059942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 10/25/2022] [Indexed: 11/22/2022] Open
Abstract
One of the main health concerns of diabetes is testicular dysfunction and impairment of reproductive function and sperm quality which can cause male infertility. kisspeptin is a hypothalamic neuropeptide hormone that is involved in the regulation of energy metabolism, gonadotrophin-releasing hormone (GnRH), and reproductive function. In the present study, the therapeutic effects of empagliflozin (sodium-glucose co-transporter 2 inhibitors) on kisspeptin expression along with reproductive function were investigated in diabetic male Wistar rats. Diabetes was induced by a single dose injection of 60 mg/kg streptozotocin. Empagliflozin in doses of 10 and 25 mg/kg body weight was used for 8 weeks. Serum samples, testis, epididymis, and pancreas tissues were collected at the end of the experiments. Lipid profiles, oxidative stress markers, blood hormones, expression of kisspeptin along with pathological alterations of the testis were assayed using real-time PCR, biochemical, and histological technics. Data have shown that empagliflozin improved hyperglycemia, reproductive impairment, oxidative stress condition, and histopathological alterations of pancreatic and testis tissues in diabetic animals. It improved the serum levels of sex hormones, insulin, leptin, and the expression of kisspeptin in the testes tissues. Spermatogenesis is also improved in treated animals. Data indicated that the administration of empagliflozin can ameliorate symptoms of diabetes. It probably has promising antidiabetic potential and may improve the male infertility of diabetic subjects. To our knowledge, this is the first experimental evidence for the potential impact of empagliflozin on kisspeptin expression in diabetic male rats.
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Affiliation(s)
- Parisa Dana
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Nasim Hayati Roodbari
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
- *Correspondence: Nasim Hayati Roodbari,
| | - Parichehreh Yaghmaei
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zahra Hajebrahimi
- A&S Research Institute, Ministry of Science Research and Technology, Tehran, Iran
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Wickramasinghe ASD, Attanayake AP, Kalansuriya P. Biochemical characterization of high fat diet fed and low dose streptozotocin induced diabetic Wistar rat model. J Pharmacol Toxicol Methods 2021; 113:107144. [PMID: 34896263 DOI: 10.1016/j.vascn.2021.107144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 11/14/2021] [Accepted: 12/02/2021] [Indexed: 10/19/2022]
Abstract
The development of a stable disease model with an adequate biochemical profile is crucial for the preclinical investigation of new antidiabetic agents. This study aimed at optimization and characterization of high fat diet (HFD) fed streptozotocin (STZ) induced type 2 diabetes mellitus (type 2 DM) Wistar rat model. Wistar rats fed with HFD for four weeks received STZ (30, 40, and 50 mg/kg, intraperitoneal). Diabetic rats were observed for four more weeks and sacrificed. Non- injected healthy Wistar rats and HFD-fed rats were used as control groups. The glucose status and the lipid profile of the model were assessed. STZ-induced rats showed significant dose-dependent alterations in fasting serum insulin and glucose, homeostatic model assessment- insulin resistance (HOMA-IR), HOMA- β cell function (HOMA- β), quantitative insulin sensitivity check index (QUICKI), total cholesterol (TC), triglycerides (TG) and atherogenic index (AI). STZ 50 mg/kg group rats showed significant increase in glycated hemoglobin (HbA1c), low density lipoprotein cholesterol (LDL-C) and very low density lipoprotein cholesterol (VLDL-C) levels compared to healthy rats. The atherogenic risk index (ARI), the Castelli risk index-I (CRII), and CRI-II were significantly (p < 0.05) high in the STZ 40 mg/kg and 50 mg/kg group rats. Results suggest that the Wistar rats fed with HFD rich in saturated fat for four weeks followed by a single intraperitoneal dose of 50 mg/kg of STZ would produce a stable diabetic model which closely mimic biochemical features of type 2 DM. Key messages: Wistar rats fed with HFD rich in saturated fat for four weeks followed by a single intraperitoneal dose of 50 mg/kg STZ would produce a stable diabetic model that closely mimics the biochemical characteristics of type 2 DM characterized by insulin resistance, relative insulin deficiency and impaired β cell function.
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Affiliation(s)
| | - Anoja P Attanayake
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Sri Lanka.
| | - Pabasara Kalansuriya
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Sri Lanka.
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Najman K, Leontowicz H, Leontowicz M. The Influence of Plants from the Alliaceae Family on Morphological Parameters of the Intestine in Atherogenic Rats. Nutrients 2021; 13:3876. [PMID: 34836133 DOI: 10.3390/nu13113876] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 01/16/2023] Open
Abstract
Bulbs from the Alliaceae family have been well-known and valued spices for thousands of years, not only for their unique flavor and aroma features, but also for their high nutritional and health-promoting values. Long-term or excessive consumption of these vegetables, especially raw garlic, can have side effects in the body (including in the digestive tract), causing a number of pathological changes in the intestinal wall; these changes lead, in turn, to its damage, dysfunction, and disorder development. Therefore, the aim of this study was to investigate the effect of the addition of freeze-dried vegetables from the Alliaceae family, i.e., garlic (Allium sativum L.), white onion, and red onion (Allium cepa L.) on the morphometric parameters (intestinal villi length, crypt depth, thickness of tunica mucosa, and the thickness of tunica muscle) of the jejunum of rats fed a semi-synthetic atherogenic diet (1% dietary cholesterol). In freeze-dried vegetables administered to rats, the contents of selected bioactive ingredients and their antioxidant potentials were determined. The effect of the onion vegetable supplements on growth parameters, serum lipid profile, plasma antioxidant potential, and the intestinal morphological parameters of rats loaded with cholesterol was determined. In an animal experiment, 30 male Wistar rats were divided into 5 diet groups, diet consumption and FER were studied. Supplementation of the atherogenic diet with vegetables improved the blood plasma lipid profiles and atherogenic indices, in a manner that was dependent on the type of supplementation used, with the best hypolipidemic and anti-atherosclerotic effects found in garlic use. The atherogenic diet, as well as the supplementation of this diet with the tested vegetables from the Alliaceae family, influenced the histological changes in the epithelium of the jejunum of rats. The damage to the intestinal mucosa was the greatest in animals fed an atherogenic diet supplemented with garlic. Bearing in mind that the desired beneficial therapeutic or prophylactic effects of onion vegetables (in particular garlic) in the course of various metabolic ailments (including atherosclerosis) are achieved during long-term supplementation, it is important to remember their possible cytotoxic effects (e.g., on the digestive tract) in order to achieve real benefits related to the supplementation with vegetables from the Alliaceae family.
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Ćurlin M, Barbir R, Dabelić S, Ljubojević M, Goessler W, Micek V, Žuntar I, Pavić M, Božičević L, Pavičić I, Vinković Vrček I. Sex affects the response of Wistar rats to polyvinyl pyrrolidone (PVP)-coated silver nanoparticles in an oral 28 days repeated dose toxicity study. Part Fibre Toxicol 2021; 18:38. [PMID: 34663357 PMCID: PMC8522010 DOI: 10.1186/s12989-021-00425-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 07/26/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Silver nanoparticles (AgNPs) are widely used in biomedicine due to their strong antimicrobial, antifungal, and antiviral activities. Concerns about their possible negative impacts on human and environmental health directed many researchers towards the assessment of the safety and toxicity of AgNPs in both in vitro and in vivo settings. A growing body of scientific information confirms that the biodistribution of AgNPs and their toxic effects vary depending on the particle size, coating, and dose as well as on the route of administration and duration of exposure. This study aimed to clarify the sex-related differences in the outcomes of oral 28 days repeated dose exposure to AgNPs. METHODS Wistar rats of both sexes were gavaged daily using low doses (0.1 and 1 mg Ag/kg b.w.) of polyvinylpyrrolidone (PVP)-coated small-sized (10 nm) AgNPs. After exposure, blood and organs of all rats were analysed through biodistribution and accumulation of Ag, whereas the state of the liver and kidneys was evaluated by the levels of reactive oxygen species (ROS) and glutathione (GSH), catalase (CAT) activity, superoxide dismutase (SOD) and glutathione peroxidase (GPx), expression of metallothionein (Mt) genes and levels of Mt proteins. RESULTS In all animals, changes in oxidative stress markers and blood parameters were observed indicating the toxicity of AgNPs applied orally even at low doses. Sex-related differences were noticed in all assessed parameters. While female rats eliminated AgNPs from the liver and kidneys more efficiently than males when treated with low doses, the opposite was observed for animals treated with higher doses of AgNPs. Female Wistar rats exposed to 1 mg PVP-coated AgNPs/kg b.w. accumulated two to three times more silver in the blood, liver, kidney and hearth than males, while the accumulation in most organs of digestive tract was more than ten times higher compared to males. Oxidative stress responses in the organs of males, except the liver of males treated with high doses, were less intense than in the organs of females. However, both Mt genes and Mt protein expression were significantly reduced after treatment in the liver and kidneys of males, while they remained unchanged in females. CONCLUSIONS Observed toxicity effects of AgNPs in Wistar rats revealed sex-related differences in response to an oral 28 days repeated exposure.
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Affiliation(s)
- Marija Ćurlin
- School of Medicine, University of Zagreb, Šalata 3, 10 000, Zagreb, Croatia.
| | - Rinea Barbir
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000, Zagreb, Croatia
| | - Sanja Dabelić
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10 000, Zagreb, Croatia
| | - Marija Ljubojević
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000, Zagreb, Croatia
| | - Walter Goessler
- Institute of Chemistry, University of Graz, Universitätsplatz 1/1, 8 010, Graz, Austria
| | - Vedran Micek
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000, Zagreb, Croatia
| | - Irena Žuntar
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10 000, Zagreb, Croatia
| | - Mirela Pavić
- Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10 000, Zagreb, Croatia
| | - Lucija Božičević
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000, Zagreb, Croatia
| | - Ivan Pavičić
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000, Zagreb, Croatia
| | - Ivana Vinković Vrček
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000, Zagreb, Croatia.
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Gautam R, Priyadarshini E, Nirala JP, Meena R, Rajamani P. Modulatory effects of Punica granatum L juice against 2115 MHz (3G) radiation-induced reproductive toxicity in male Wistar rat. Environ Sci Pollut Res Int 2021; 28:54756-54765. [PMID: 34018100 DOI: 10.1007/s11356-021-14378-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 05/09/2021] [Indexed: 06/12/2023]
Abstract
Advancements in telecommunication sector result in increasing exposure to electromagnetic (EM) radiation, which has been correlated with incidence of male infertility. Therefore, the present study focused on analyzing the consequence of EM radiation (2115 MHz) exposure on the reproductive system of male Wistar rats. Besides, the antioxidant protective effect of Punica granatum juice was also evaluated. For experimental analysis, rats were divided into five groups (control, sham exposed, exposed, herbal plus exposed, and herbal only). Individual group consisted of 6 rats which were exposed to radiation for 45 days (2 h/day). The herbal-treated groups were given 1 ml of Punica granatum extract orally. Various parameters such as organ to body ratio, sperm count, motility, viability, and testis histopathology were studied. Furthermore, oxidative stress parameters and free radical generation were analyzed. The exposed group showed changes in sperm parameters along with decrease in seminiferous tubule diameter. On the contrary, herbal-exposed group showed enhanced sperm count, increased motility, and viability in comparison to exposed group. Histopathology studies also revealed the protective role of herbal juice. Significant alteration in oxidative parameters along with an enhanced free radical generation in exposed group and reduction in herbal groups was observed. The results thus indicate that continuous exposure to EM radiation can lead to oxidative stress which induces biochemical changes in rat sperms. However, Punica granatum extract has a protective role against oxidative damage induced by EM radiation.
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Affiliation(s)
- Rohit Gautam
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Eepsita Priyadarshini
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Jay Prakash Nirala
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Ramovatar Meena
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Paulraj Rajamani
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
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Sudakov SK, Alekseeva EV, Nazarova GA, Bashkatova VG. Age-Related Individual Behavioural Characteristics of Adult Wistar Rats. Animals (Basel) 2021; 11:2282. [PMID: 34438740 DOI: 10.3390/ani11082282] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/21/2021] [Accepted: 07/31/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Rats are considered adults from 2 to 5 months. During this period, they are used for experimentation in physiology and pharmacology. Adult rats, depending on their age, can be in a different physiological state, which can influence the results of experiments carried out on them. Despite this, age-related changes in adult rats have not yet been examined. Our results showed that as male and female rats progressed from 2 to 5 months of age there was a decrease in the level of motor and exploratory activities, and an increase in the level of anxiety-like behaviour. Age-related changes were dependent upon initial individual characteristics of behaviour. For example, animals that demonstrated high motor activity at 2 months become significantly less active by 5 months, and animals that showed a low level of anxiety at 2 months become more anxious by 5 months. Low-activity and high-anxiety rats did not show any significant age-related changes from 2 to 5 months of age. The results of this work should be taken into account when choosing the age of rats for conducting behavioural experiments. Abstract The aim of this work was to study age-related changes in the behaviour of adult Wistar rats using the open field (OF) and elevated plus maze (EPM) tests. Behavioural changes related to motor activity and anxiety were of particular interest. Results showed that as male and female rats progressed from 2 to 5 months of age, there was a decrease in the level of motor and exploratory activities and an increase in their level of anxiety. Age-related changes were dependent upon initial individual characteristics of behaviour. For example, animals that demonstrated high motor activity at 2 months become significantly less active by 5 months, and animals that showed a low level of anxiety at 2 months become more anxious by 5 months. Low-activity and high-anxiety rats did not show any significant age-related changes in OF and EPM tests from 2 to 5 months of age, except for a decrease in the number of rearings in the EPM. Thus, the behaviour of the same adult rat at 2 and 5 months of age is significantly different, which may lead to differences in the experimental results of physiological and pharmacological studies using adult animals of different ages.
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Takahashi K, Shima T, Soya M, Oharomari LK, Okamoto M, Soya H. Differences in exercise capacity and physiological responses in Wistar rats among breeders. Exp Anim 2021; 70:508-513. [PMID: 34176861 PMCID: PMC8614012 DOI: 10.1538/expanim.21-0057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
In animal experiments aimed at extrapolation to humans, it is essential to ensure the reproducibility of experiments and universality between animals and humans. However, among animals with
the same generic name but from different breeders, which is to say different stocks, even resting physiological conditions, such as genetics, do not coincide, and, therefore, exercise
capacity and physiological responses may also vary. To address this issue, we examined the differences in exercise capacity and exercise-induced metabolic and endocrine responses among
stocks of Wistar rats using an established treadmill running model for rodents, which mimics physiological responses in humans. Wistar rats from four breeders were acclimated to treadmill
running and then had a catheter inserted into their external jugular veins. Subsequently, the rats were subjected to an incremental treadmill running test (IRT). We found that there were
significant differences in the exercise capacity among Wistar rats from different breeders. Additionally, the dynamics of blood lactate, glucose, and adrenocorticotropic hormone levels
during the IRT were found to vary among the Wistar rats from different breeders; only one stock showed human-type exercise-induced physiological responses. These results indicate that Wistar
rats could have different capacities for and physiological responses to the same exercise depending on their stocks. Thus, the selection of the stock of experimental animals may affect the
validity of the results when verifying exercise effects.
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Affiliation(s)
- Kanako Takahashi
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba.,Division of Sport Neuroscience, Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sport Sciences, University of Tsukuba
| | - Takeru Shima
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba.,Department of Health and Physical Education, Cooperative Faculty of Education, Gunma University
| | - Mariko Soya
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba.,Department of Anatomy and Neuroscience, Graduate School of Medical Sciences, Kyushu University
| | - Leandro Kansuke Oharomari
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba
| | - Masahiro Okamoto
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba.,Division of Sport Neuroscience, Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sport Sciences, University of Tsukuba
| | - Hideaki Soya
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba.,Division of Sport Neuroscience, Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sport Sciences, University of Tsukuba
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Kresnamurti A, Rakhma DN, Damayanti A, Santoso SD, Restryarto E, Hadinata W, Hamid IS. AST/ALT levels, MDA, and liver histopathology of Echinometra mathaei ethanol extract on paracetamol-induced hepatotoxicity in rats. J Basic Clin Physiol Pharmacol 2021; 32:511-516. [PMID: 34214304 DOI: 10.1515/jbcpp-2020-0420] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 03/08/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Echinometra mathaei was known to have potential antioxidant activities because it contains of polyhydroxy-naphthoquinone (echinochrome and spinochromes). The antioxidant properties contributed to the hepatoprotective effect by binding to free radicals compound that causes oxidative stress and necrosis in the hepatocytes. The research aimed to determine the hepatorepair effects of the E. mathaei ethanol extract on high-dose paracetamol-induced hepatic damage in Wistar rats. METHODS This research used a true experimental method. Thirty white male rats were divided into sixth groups, i.e., normal control group, group II-VI was induced paracetamol 2,000 mg/kg BW for three days. After paracetamol-induced, group III-VI was treated with curcumin 800 mg/kg BW, E. mathaei extract 400, 800, and 1,200 mg/kg BW for seven days. The hepatorepair parameter was obtained from AST/ALT, MDA tissue levels, and the number of hepatocyte necrosis cells. The data results were analyzed using the ANOVA test, followed by the LSD test to determine the difference between each treatment. RESULTS The results showed that E. mathaei significantly (p<0.05) decreased the AST levels, MDA levels and the number of hepatocyte necrosis cells at a dose of 800 mg/kg BW per orally treatment. CONCLUSIONS The E. mathaei ethanol extract repaired the hepatic damage induced by paracetamol.
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Affiliation(s)
- Angelica Kresnamurti
- Pharmacy Study Program, Faculty of Medicine, Hang Tuah University, Surabaya, Indonesia
| | - Dita Nurlita Rakhma
- Pharmacy Study Program, Faculty of Medicine, Hang Tuah University, Surabaya, Indonesia
| | - Amitasari Damayanti
- Pharmacy Study Program, Faculty of Medicine, Hang Tuah University, Surabaya, Indonesia
| | - Septiyan Dwi Santoso
- Pharmacy Study Program, Faculty of Medicine, Hang Tuah University, Surabaya, Indonesia
| | - Enggar Restryarto
- Pharmacy Study Program, Faculty of Medicine, Hang Tuah University, Surabaya, Indonesia
| | - Wifqi Hadinata
- Pharmacy Study Program, Faculty of Medicine, Hang Tuah University, Surabaya, Indonesia
| | - Iwan Sahrial Hamid
- Pharmacology, Faculty of Veterinary Medicine, Airlangga University, Surabaya, Indonesia
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Vigueras-Villaseñor RM, Chávez-Saldaña MD, Landero-Huerta DA, Montes S, Ríos C, Rojas P, Molina-Obregón HA, Durán P, Rojas-Castañeda JC. Chronic lead exposure alters photic entrainment of locomotor activity rhythm and neuronal photoactivation in the suprachiasmatic nucleus of the adult rat. J Chem Neuroanat 2021; 117:101991. [PMID: 34182089 DOI: 10.1016/j.jchemneu.2021.101991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/06/2021] [Accepted: 06/14/2021] [Indexed: 11/21/2022]
Abstract
Chronic lead (Pb) exposure affects the circadian physiological processes regulated by suprachiasmatic nucleus (SCN), which is synchronized (entrainment) by light. Disorders in the entrainment capacity of an organism alter its performance to interact with the environment, thus affecting its health status. The objectives of the present study were to evaluate whether chronic early Pb exposure affects the entrainment of the circadian rhythm of locomotor activity by light and to explore the possible mechanisms involved. Adult male Wistar rats, control and chronically exposed to Pb (320 ppm) in drinking water from gestation to adult age, were used. Assessment of the metal level showed a significant increase of Pb in the blood, hypothalamus and prefrontal cortex of the experimental rats. Continuous registrations of locomotor activity (12 h:12 h light-dark cycle) depicted that Pb induces important delay of this activity when the light was turned off. The Pb exposed animals entrained faster with a photoperiod delay of 6 h, (lights on at 13:00 h), and maintained the significant delay in the onset of activity at lights out. In continuous darkness, the animals were exposed to a light pulse at circadian time 23. This resulted in a significant decrease of photo-stimulated neurons (immunoreactivity to c-Fos) in the SCN of the metal-exposed animals. These results show that chronic early Pb exposure alters the photic entrainment of the rhythm of locomotor activity, which is evidenced by a significant decrease in both the number of photo-stimulated neurons and neuronal population (Nissl stain) of the SCN.
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Teshome D, Tiruneh C, Berhanu L, Berihun G, Belete ZW. Developmental Toxicity of Ethanolic Extracts of Leaves of Achyranthes aspera, Amaranthaceae in Rat Embryos and Fetuses. J Exp Pharmacol 2021; 13:555-563. [PMID: 34104006 PMCID: PMC8180308 DOI: 10.2147/jep.s312649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 05/14/2021] [Indexed: 12/29/2022] Open
Abstract
Introduction Achyranthes aspera is one of the medicinal plants widely used for fertility control in the local health system of Ethiopia. Objective Assessment of developmental toxicity of ethanolic extracts of leaves of Achyranthes aspera in rat embryos and fetuses. Methods Fresh leaves were extracted by mixing the grinded powder with 70% ethanol. Then, the extract was given orally to gravid Wistar rats at doses of 250 mg/kg, 500 mg/kg and 1000 mg/kg from day 6–12 of gestation. On gestational days 12 and 20, embryos and fetuses were examined for developmental and gross malformations. Results On day 12 embryos, the number of implantation sites and somites in 1000 mg/kg treated rats were significantly reduced. The number of implantation sites in pair-fed control and 1000 mg/kg groups was 11.2±0.86 and 8.34±0.65, respectively. Retarded development of hindlimb, forelimb, optic and olfactory systems was detected at a high dose. In addition, the number of branchial bar was significantly reduced in 1000 mg/kg dose. In near-term fetuses, significant reduction of litter weight and crown–rump length was seen at 1000 mg/kg dose. Crown–rump length in pair-fed control and 1000 mg/kg treated groups was 2.82±0.17 cm and 2.31±0.11 cm, respectively. Fetal resorptions and deaths in 1000 mg/kg were 1.45±0.65 and 0.81±0.67, respectively. However, external anomalies were not detected for all offspring at all doses. Conclusion The finding suggests that ethanolic leaf extracts of A. aspera have detrimental effects on the development of rat embryos and fetuses at a higher dose. The possible teratogenic effects were indicated with the substantial retardation in embryonic and fetal development, decrease in number of implantation sites and rise in fetal resorptions and death. Moreover, it resulted in significant reduction in litter weight and crown–rump length at a higher dose.
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Affiliation(s)
- Daniel Teshome
- Department of Anatomy, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Chalachew Tiruneh
- Department of Anatomy, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Leykun Berhanu
- Department of Environmental Health, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Gete Berihun
- Department of Environmental Health, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Zebader Walle Belete
- Department of Public Health, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
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Taïbi N, Al-Balas QA, Bekari N, Talhi O, Al Jabal GA, Benali Y, Ameraoui R, Hadjadj M, Taïbi A, Boutaiba ZM, Abou-Mustapha M, Khammar F, Dergal F, Hassaine R, Boukenna L, Bachari K, Soares Silva AM. Molecular docking and dynamic studies of a potential therapeutic target inhibiting glyoxalase system: Metabolic action of the 3, 3 '- [3- (5-chloro-2-hydroxyphenyl) -3-oxopropane-1, 1-diyl] - Bis-4-hydroxycoumarin leads overexpression of the intracellular level of methylglyoxal and induction of a pro-apoptotic phenomenon in a hepatocellular carcinoma model. Chem Biol Interact 2021; 345:109511. [PMID: 33989593 DOI: 10.1016/j.cbi.2021.109511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/03/2021] [Accepted: 05/05/2021] [Indexed: 01/22/2023]
Abstract
Methylglyoxal is a dicarbonyl compound recruited as a potential cytotoxic marker, initially presents in cells and considered as a metabolite of the glycolytic pathway. Our aim is to demonstrate the inhibitory effect of 3, 3'-[3-(5-chloro-2-hydroxyphenyl)-3-oxopropane-1, 1-diyl] Bis (4-hydroxycoumarin) on the glyoxalase system, and indirectly its anticancer activity. The docking of OT-55 was conducted by using Flexible docking protocol, ChiFlex and libdock tools inside the active site of Glo-I indicated that both hydrogen bonding and hydrophobic interactions contributed significantly in establishing potent binding with the active site which is selected as a strong inhibitor with high scoring values and maximum Gibbs free energy. Coumarin-liposome formulation was characterized and evaluated in vivo against chemically induced hepatocarcinoma in Wistar rats. After Diethylnitrosamine (DEN) induction, microscopic assessment was realized; precancerous lesions were developed showing an increase of both tumor-associated lymphocyte and multiple tumor acini supported by the blood investigation. Our finding also suggested a preferential uptake of liposomes respectively in liver, kidney, lung, brain and spleen in the DEN-treated animals. OT-55 has also been shown to inhibit the activity of Glo-I in vitro as well as in DEN-treated rats. An abnormal high level of MGO of up to 50% was recorded followed by a reduction in glucose consumption and lactate dehydrogenase production validated in the positive control. MGO generates apoptosis as depicted by focal hepatic lesions. Also, no deleterious effects in the control group were observed after testing our coumarin but rather a vascular reorganization leading to nodular regenerative hyperplasia. Involved in the detoxification process, liver GSH is restored in intoxicated rats, while no changes are seen between controls. At the endothelial cell, OT-55 appears to modulate the release of NO only in the DEN-treated group. OT-55 would behave both as an anticancer agent but also as an angiogenic factor regarding results obtained.
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Syarif, Rasyid H, Aman M, Lawrence GS. High-fat diet increases the level of circulating Monocyte Chemoattractant Protein-1 in Wistar rats, independent of obesity. Ann Med Surg (Lond) 2021; 65:102266. [PMID: 33868686 PMCID: PMC8047162 DOI: 10.1016/j.amsu.2021.102266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/24/2021] [Accepted: 03/24/2021] [Indexed: 11/26/2022] Open
Abstract
Introduction Low-grade chronic inflammation has emerged as a key pathogenic link between high-fat diet (HFD)-induced obesity and the increased risk of chronic diseases. Evidence has shown that HFDs may induce inflammation in the central nervous system and peripheral tissues. Monocyte Chemoattractant Protein-1 (MCP-1) is a product of various cells that is known to be an inflammatory marker. This study investigated whether a HFD could induce obesity and increase the level of MCP-1 in Wistar rats. Methods The Wistar rats were randomized into two groups: normal diet (ND) and HFD (n = 12 per group). Both groups were fed for 8 and 16 weeks, thus dividing the rats into 4 arms: ND8, ND16, HFD8, and HFD16 (n = 6 per sub-group). Obesity in rats was measured using the Lee index. Blood samples were taken to measure the level of MCP-1. Results Our results showed that obesity did not occur in the group with a normal diet (ND8 and ND16). However, in the HFD group (HFD8 and HFD16), 4 of the 6 rats became obese. However, MCP-1 was significantly higher among non-obese rats in the HFD group compared with the ND group (p < 0.001). Conclusion HFDs have been shown to increase the risk of obesity. In addition, increases in circulating MCP-1 were significantly different between Wistar rats given a HFD compared with the ND group.
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Affiliation(s)
- Syarif
- Division of Urology, Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Haerani Rasyid
- Department of Internal Medicine, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Makbul Aman
- Department of Internal Medicine, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Gatot S Lawrence
- Department of Pathology Anatomy, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
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Nugrahanti MP, Armalina D, Partiningrum DL, Fulyani F. The effect of ranitidine administration in graded dosage to the degree of liver damage: A study on Wistar rats with acute methanol intoxication. Hum Exp Toxicol 2021; 40:497-503. [PMID: 32909853 DOI: 10.1177/0960327120954529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The high incidence of alcoholic poisoning in Indonesia is caused by the use of methanol as a surrogate ingredient of nonconforming alcohol. The product of methanol metabolism is toxic to the liver. Ranitidine has been studied as an antidote to reduce the effect of methanol toxicity. The present study aimed to assess the effect of ranitidine administration on the liver damage of Wistar rats with acute methanol intoxication. This research was an experimental study with randomized and posttest-only control group design. A total of 24 male Wistar rats divided into four groups, each consisting of six Rats. The control group (K0) served as a reference normal value. The control group (K1) was intoxicated with methanol 7 g/kg body weight (b.w.) through rat gavage tube. Treatment groups were intoxicated with methanol and 15 minutes after that, Ranitidine (30 mg/kg b.w. (P1) or 60 mg/kg b.w. (P2)) was given intraperitoneally. Ranitidine administration was proven to protect the liver tissue from damage due to methanol intoxication as was indicated from the histopathological examination. Ranitidine with dose 60 mg/kg b.w. is better in reducing the degree of liver tissue damage in acute methanol intoxication rats.
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Affiliation(s)
- M P Nugrahanti
- Medical School Program, 95450Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - D Armalina
- Medical School Program, 95450Faculty of Medicine, Diponegoro University, Semarang, Indonesia
- Department of Histology, 95450Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - D L Partiningrum
- Medical School Program, 95450Faculty of Medicine, Diponegoro University, Semarang, Indonesia
- Department of Internal Medicine, 95450Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - F Fulyani
- Medical School Program, 95450Faculty of Medicine, Diponegoro University, Semarang, Indonesia
- Department of Medical Biology and Biochemistry, 95450Faculty of Medicine, Diponegoro University, Semarang, Indonesia
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Astuti SD, Utomo IB, Setiawatie EM, Khasanah M, Purnobasuki H, Arifianto D, Alamsyah KA. Combination effect of laser diode for photodynamic therapy with doxycycline on a wistar rat model of periodontitis. BMC Oral Health 2021; 21:80. [PMID: 33607998 PMCID: PMC7893773 DOI: 10.1186/s12903-021-01435-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 02/09/2021] [Indexed: 11/16/2022] Open
Abstract
Background Periodontitis is a chronic inflammatory disease characterized by progressive damage on the structure of tooth-supporting tissues. The aim of the study is determining the combination photodynamic effect of diode laser 405 nm treatments and the administration of doxycycline 0.1% within 1, 3, 5, and 7 days on a Wistar rat model of periodontitis. Methods Samples were induced with Porphyromonas gingivalis ATCC33277 to allow periodontitis development and were treated with combination of doxycycline and laser diode, then statistical analysis was carried out (One-Way ANOVA test and the post-hoc Duncan test; Kruskal–Wallis test and Mann–Whitney follow-up test for non-parametric data). Samples were divided into five groups, laser exposure used was 405-nm diode laser with energy density of 8 J/cm2. The expression level of histomorphometric was calculated by measuring the number of macrophages, lymphocytes, fibroblasts and the distance between the CEJ-AV. Results The results showed that the combination treatment of doxycycline and laser exposure yielded immunomodulatory effects. The expression level of fibroblast and the distance between CEJ-AV bone showed that the combination of doxycycline and laser therapy exerted healing effect in rat models of periodontitis on day 5 and 7. Conclusion The combination of doxycycline 0.1% and diode laser therapy provides a healing effect in rats models of periodontitis.
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Affiliation(s)
- Suryani Dyah Astuti
- Department of Physics, Faculty of Science and Technology, Universitas Airlangga, Mulyorejo Street, Campus C Universitas Airlangga, Surabaya, 60115, Indonesia. .,Biomedical Engineering Master Program, Faculty of Science and Technology, Universitas Airlangga, Surabaya, 60115, Indonesia. .,Biophysics and Medical Physics Research Group, Faculty of Sciences and Technology, Universitas Airlangga, Surabaya, 60115, Indonesia.
| | - Irawan Budi Utomo
- Biomedical Engineering Master Program, Faculty of Science and Technology, Universitas Airlangga, Surabaya, 60115, Indonesia
| | | | - Miratul Khasanah
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, 60115, Indonesia
| | - Hery Purnobasuki
- Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Surabaya, 60115, Indonesia
| | - Deny Arifianto
- Faculty of Voccasional, Universitas Airlangga, Surabaya, 60115, Indonesia
| | - Kartika Anggraini Alamsyah
- Biomedical Engineering Master Program, Faculty of Science and Technology, Universitas Airlangga, Surabaya, 60115, Indonesia
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Su AL, Lash LH, Bergin IL, Bjork F, Loch-Caruso R. N-Acetyl-L-cysteine and aminooxyacetic acid differentially modulate trichloroethylene reproductive toxicity via metabolism in Wistar rats. Arch Toxicol 2021; 95:1303-21. [PMID: 33599830 DOI: 10.1007/s00204-021-02991-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/21/2021] [Indexed: 10/22/2022]
Abstract
Exposure to the industrial solvent trichloroethylene (TCE) has been associated with adverse pregnancy outcomes in humans and decreased fetal weight in rats. TCE kidney toxicity can occur through formation of reactive metabolites via its glutathione (GSH) conjugation metabolic pathway, largely unstudied in the context of pregnancy. To investigate the contribution of the GSH conjugation pathway and oxidative stress to TCE toxicity during pregnancy, we exposed rats orally to 480 mg TCE/kg/day from gestational day (GD) 6 to GD 16 with and without N-acetyl-L-cysteine (NAC) at 200 mg/kg/day or aminooxyacetic acid (AOAA) at 20 mg/kg/day as pre/co-treatments from GD 5-16. NAC is a reactive oxygen species scavenger that modifies the GSH conjugation pathway, and AOAA is an inhibitor of cysteine conjugate β-lyase (CCBL) in the GSH conjugation pathway. TCE decreased fetal weight, and this was prevented by AOAA but not NAC pre/co-treatment to TCE. Although AOAA inhibited CCBL activity in maternal kidney, it did not inhibit CCBL activity in maternal liver and placenta, suggesting that AOAA prevention of TCE-induced decreased fetal weight was due to CCBL activity inhibition in the kidneys but not liver or placenta. Unexpectedly, NAC pre/co-treatment with TCE, relative to TCE treatment alone, altered placental morphology consistent with delayed developmental phenotype. Immunohistochemical staining revealed that the decidua basale, relative to basal and labyrinth zones, expressed the highest abundance of CCBL1, flavin-containing monooxygenase 3, and cleaved caspase-3. Together, the findings show the differential effects of NAC and AOAA on TCE-induced pregnancy outcomes are likely attributable to TCE metabolism modulation.
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Petrikova-Hrebickova I, Sevcikova M, Šlamberová R. The Impact of Neonatal Methamphetamine on Spatial Learning and Memory in Adult Female Rats. Front Behav Neurosci 2021; 15:629585. [PMID: 33679341 PMCID: PMC7930212 DOI: 10.3389/fnbeh.2021.629585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/26/2021] [Indexed: 11/13/2022] Open
Abstract
The present study was aimed at evaluating cognitive changes following neonatal methamphetamine exposure in combination with repeated treatment in adulthood of female Wistar rats. Pregnant dams and their pups were used in this study. One half of the offspring were treated indirectly via the breast milk of injected mothers, and the other half of pups were treated directly by methamphetamine injection. In the group with indirect exposure, mothers received methamphetamine (5 mg/ml/kg) or saline (1 ml/kg) between postnatal days (PD) 1-11. In the group with direct exposure, none of the mothers were treated. Instead, progeny were either: (1) treated with injected methamphetamine (5 mg/ml/kg); or (2) served as controls and received sham injections (no saline, just a needle stick) on PD 1-11. Learning ability and memory consolidation were tested on PD 70-90 in the Morris Water Maze (MWM) using three tests: Place Navigation Test, Probe Test, and Memory Recall Test. Adult female progeny were injected daily, after completion of the last trial of MWM tests, with saline or methamphetamine (1 mg/ml/kg). The effects of indirect/direct neonatal methamphetamine exposure combined with acute adult methamphetamine treatment on cognitive functions in female rats were compared. Statistical analyses showed that neonatal drug exposure worsened spatial learning and the ability to remember the position of a hidden platform. The study also demonstrated that direct methamphetamine exposure has a more significant impact on learning and memory than indirect exposure. The acute dose of the drug did not produce any changes in cognitive ability. Analyses of search strategies (thigmotaxis, scanning) used by females during the Place Navigation Test and Memory Recall Test confirmed all these results. Results from the present study suggested extensive deficits in learning skills and memory of female rats that may be linked to the negative impact of neonatal methamphetamine exposure.
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Affiliation(s)
| | - Maria Sevcikova
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Romana Šlamberová
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
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Zheng F, Zhu J, Zhang W, Fu Y, Lin Z. Thal protects against paraquat-induced lung injury through a microRNA-141/HDAC6/IκBα-NF-κB axis in rat and cell models. Basic Clin Pharmacol Toxicol 2021; 128:334-347. [PMID: 33015978 PMCID: PMC7894280 DOI: 10.1111/bcpt.13505] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/18/2020] [Accepted: 09/25/2020] [Indexed: 12/16/2022]
Abstract
The protective functions of thalidomide in paraquat (PQ)-induced injury have been reported. But the mechanisms remain largely unknown. In this research, a PQ-treated rat model was established and further treated with thalidomide. Oedema and pathological changes, oxidative stress, inflammation, fibrosis and cell apoptosis in rat lungs were detected. A PQ-treated RLE-6TN cell model was constructed, and the viability and apoptosis rate of cells were measured. Differentially expressed microRNAs (miRNAs) after thalidomide administration were screened out. Binding relationship between miR-141 and histone deacetylase 6 (HDAC6) was validated. Altered expression of miR-141 and HDAC6 was introduced to identify their involvements in thalidomide-mediated events. Consequently, thalidomide administration alone exerted no damage to rat lungs; in addition it reduced PQ-induced oedema. The oxidative stress, inflammation and cell apoptosis in rat lungs were reduced by thalidomide. In RLE-6TN cells, thalidomide increased cell viability and decreased apoptosis. miR-141 was responsible for thalidomide-mediated protective events by targeting HDAC6. Overexpression of HDAC6 blocked the protection of thalidomide against PQ-induced injury via activating the IkBα-NF-κB signalling pathway. Collectively, this study evidenced that thalidomide protects lung tissues from PQ-induced injury through a miR-141/HDAC6/IkBα-NF-κB axis.
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Affiliation(s)
- Fenshuang Zheng
- Department of Emergency MedicineSecond People's Hospital of Yunnan ProvinceKunmingChina
| | - Junbo Zhu
- Department of Emergency MedicineSecond People's Hospital of Yunnan ProvinceKunmingChina
| | - Wei Zhang
- Department of Emergency MedicineSecond People's Hospital of Yunnan ProvinceKunmingChina
| | - Yangshan Fu
- Department of Emergency MedicineSecond People's Hospital of Yunnan ProvinceKunmingChina
| | - Zhaoheng Lin
- Department of Critical Care MedicinePeople's Hospital of Xishuangbanna Dai Nationality Autonomous PrefecturePingpongChina
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Deivasigamani M, Kannan N, Sekar N, Lakshmanan H. Safety assessment of ethanolic root extract of Zaleya decandra (EEZD) in Wistar rats. Regul Toxicol Pharmacol 2021; 119:104822. [PMID: 33217502 DOI: 10.1016/j.yrtph.2020.104822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/30/2020] [Accepted: 11/05/2020] [Indexed: 01/10/2023]
Abstract
Zaleya decandra is a prostrate, glabrous, succulent herb of the family Aizoaceae. In recent years the pharmacological efficacy of the plant such as the hepatoprotective, antimicrobial, antidiabetic, anti-inflammatory and anticancer activities has been reported. However, a long-term toxicity study of Z. decandra is yet to be carried out. In the present study, the acute dose of 2000 mg/kg b.w. of ethanolic extract of Z. decandra (EEZD) administered orally to Wistar rats gained gradual weight with time and appeared healthy without any record of mortality. In the sub-chronic toxicity study, the rats showed no remarkable increase or decrease in their weight even at the highest dose of 500 mg/kg b.w. The haematological, biochemistry and serum marker enzyme parameters did not show any dose dependent change in the values. Further, the histology micrographs confirmed that the tissue architecture of all the vital organs were not affected by EEZD treatment. Hence, the EEZD (500 mg/kg b.w.) is considered safe for a 90-day period. Therefore, the present study warrants extensive investigation of EEZD using higher pre-clinical model system to substantiate the findings. The GC-MS analysis revealed the presence of 39 phytoconstituents including octadecenoic acid, hexadecanoic and phytosterols such as campesterol, sitosterol and stigmasterol.
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Affiliation(s)
- Malarvizhi Deivasigamani
- Department of Biochemistry, Karpagam Academy of Higher Education, Eachanari, Coimbatore, 641 021, Tamil Nadu, India
| | - Nagaraj Kannan
- Department of Biochemistry, Karpagam Academy of Higher Education, Eachanari, Coimbatore, 641 021, Tamil Nadu, India
| | - Nishu Sekar
- Department of Biotechnology, Sri Ramakrishna College of Arts and Science, Coimbatore, 641 006, Tamil Nadu, India
| | - Hariprasath Lakshmanan
- Department of Biochemistry, Karpagam Academy of Higher Education, Eachanari, Coimbatore, 641 021, Tamil Nadu, India.
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