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Effect of Weiliuan of different prescriptions on gastrointestinal regulation factor in spleen-deficiency rats
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作者 Xuan-xuanZHU Xue-feiZHANG Shen-linLIU 《中国药理学与毒理学杂志》 CAS CSCD 北大核心 2015年第S1期110-111,共2页
OBJECTIVE To observe the regulating effect of Weiliuan on digestive enzyme and relevant gastrointestinal hormone in spleen-deficiency rats.METHODS The rats were given the decoction of Radix et Rhizoma combine with die... OBJECTIVE To observe the regulating effect of Weiliuan on digestive enzyme and relevant gastrointestinal hormone in spleen-deficiency rats.METHODS The rats were given the decoction of Radix et Rhizoma combine with dietary disorder to induce spleen-deficiency syndrome.Spleen-deficiency rats were divided into 8groups:normal control group,spleen deficiency model group,Mengtuoshi San group(0.15g·kg-1),Weiliuan 31.5and 15.75g·kg-1 groups,Weiliuan splited prescriptionⅠ 31.5 and 15.75g·kg-1groups,Weiliuan splited prescriptionⅡ 31.5and 15.75g·kg-1 groups.At the end of experiment,the level of amylase(AMS),lactic dehydrogenase(LDH),succinate dehydrogenase(SDH),motilin(MTL),somatostatin(SS),gastrin(GAS)and organ coefficient were detected.RESULTS Weiliuan group,Weiliuan splited prescriptionⅠ group and Weiliuan splited prescriptionⅡ group can significantly reduce the spleen index,the level of SDH and LDH,it can also improve the level of the AMS(P<0.05,P<0.01)In the regulation of hormone levels,Weiliuan group,Weiliuan splited prescriptionⅠ group and Weiliuan splited prescriptionⅡ group can significantly improve the levels MTL and GAS(P<0.05),but had no obvious effect on SS.CONCLUSION Weiliuan group,Weiliuan splited prescriptionⅠ group and Weiliuan splited prescriptionⅡ group can improve the symptoms of spleen deficiency syndrome significantly.Its mechanism may be to regulate the levels of AMS,SDH,LDH,MTL and GAS. 展开更多
关键词 Weiliuan spleen-deficiency DIGESTIVE ENZYME
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Effect of Mushroom Extract Hericium erinaceus on Spatial Memory and Morphology of Neurons in the CA1 and CA3 Regions of the Hippocampus in Ovariectomized Rats
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作者 Lucia Garcia-Delgado Mariana Monserrath Verdía-Venegas +5 位作者 Jacinto Bañuelos-Pineda Esther Albarrán-Rodríguez Guillermo Nolasco-Rodriguez José Ricardo Cuellar-Pérez Sergio Fausto-Guerra Manuel Rosales-Cortés 《Open Journal of Veterinary Medicine》 CAS 2024年第7期163-179,共17页
Various studies indicate that low levels of estradiol negatively impact cognitive abilities. Extracts from the fungus Hericium erinaceus (HE) contain bioactive components that promote the proper functioning of the ner... Various studies indicate that low levels of estradiol negatively impact cognitive abilities. Extracts from the fungus Hericium erinaceus (HE) contain bioactive components that promote the proper functioning of the nervous system and potential effects on protection against neurodegenerative diseases, including dementia and motor dysfunctions. The objective was to evaluate the effects of the administration of the HE mushroom extract on visuospatial memory and morphology of neurons in the CA1 and CA3 regions of the hippocampus in ovariectomized rats. 40 young Wistar rats weighing 90 ± 10 g BW were used, which were distributed into four groups of 10 animals;Control Group, non-ovariectomized and untreated rats;Group E2, ovariectomized rats treated with estradiol (2 μg/kg/body weight);Group HE, ovariectomized rats treated with the extract of the fungus Hericium erinaceus (0.5 mg/kg body weight) and Group Ovx/ST, ovariectomized rats, without treatment. The animals were tested in the Barnes and Open Field maze, then they were sacrificed, and their brains were obtained to perform a histological analysis of neuronal morphology in the CA1 and CA3 areas of the hippocampus. The most outstanding results showed that the Ovx/ST group recorded the longest time to arrive at the escape box and stay in the Barnes maze. A correlation was observed between neuronal damage and function;in the groups that did not present satisfactory performance in the maze tests, morphological alterations were identified such as the presence of some neuronal somata with degeneration characteristics such as pyknosis, nuclear basophilia and shrinkage of the cells. Its soma, as well as a decrease in the nuclear area of CA1 and CA3 neurons. It is concluded that the fungus Hericium erinaceus exerted a neuroprotective effect on the neuronal bodies of the hippocampus, associated with better performance in the visuospatial recognition memory test. 展开更多
关键词 Ovariectomized rats Ovarian Hypofunction ESTRADIOL Hericium erinaceus Barnes Circular Labyrinth Open Field Labyrinth
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Underlying anti-hypertensive mechanism of the Mizuhopecten yessoensis derived peptide NCW in spontaneously hypertensive rats via widely targeted kidney metabolomics
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作者 Wenjun Xue Wenzhu Zhao +1 位作者 Sijia Wu Zhipeng Yu 《Food Science and Human Wellness》 SCIE CSCD 2024年第1期472-481,共10页
The angiotensin-converting enzyme(ACE)inhibitory peptide NCW derived from Mizuhopecten yessoensis has been demonstrated to have significant in vivo anti-hypertensive effects,however,its anti-hypertensive mechanism is ... The angiotensin-converting enzyme(ACE)inhibitory peptide NCW derived from Mizuhopecten yessoensis has been demonstrated to have significant in vivo anti-hypertensive effects,however,its anti-hypertensive mechanism is still not fully clarified.This study established a UPLC-Q-TRAP-MS/MS-based widely targeted kidney metabolomics approach to explore the changes of kidney metabolic profiles and to clarify the antihypertensive mechanism of peptide NCW in spontaneously hypertensive rats(SHRs).Multivariate statistical analysis indicated that the kidney metabolic profiles were clearly separated between the SHR-NCW and SHRUntreated groups.A total of 85 metabolites were differentially regulated,and 16 metabolites were identified as potential kidney biomarkers,e.g.,3-hydroxybutyrate,malonic acid,deoxycytidine,and L-aspartic acid.The peptide NCW might regulate kidney metabolic disorder of SHRs to alleviate hypertension by suppressing inflammation and improving nitric oxide production under the regulation of linoleic acid metabolism,folate related pathways,synthesis and degradation of ketone bodies,pyrimidine metabolism,β-alanine metabolism,and retinal metabolism. 展开更多
关键词 ACE inhibitory peptide KIDNEY MECHANISM Metabolomics Spontaneously hypertensive rats
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Long-Term Impact of Acute Retinoic Acid Supplementation at the Young Age on Testicular Architecture of Wistar Albino Rats
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作者 Mama Sy Racha Kamenda Ibondou +7 位作者 Fatoumata Bah Robert Foko Ndiaga Diop Mame Vénus Abdoulaye Séga Cheikh Diop Mamadou Fall Oumar Faye 《Advances in Reproductive Sciences》 CAS 2024年第1期1-13,共13页
Introduction: Inappropriate and excess vitamin supplementation, particularly for vitamin A, is increasingly recognized as a public health problem in developed countries. On the other hand, blind supplementation of vit... Introduction: Inappropriate and excess vitamin supplementation, particularly for vitamin A, is increasingly recognized as a public health problem in developed countries. On the other hand, blind supplementation of vitamin A, for children in developing countries is a subject of controversy in the literature. The crucial role of vitamin A in the process of spermatogenesis in adult rodents is well established, but only a few publications are consecrated to the long-term effect of vitamin A intake at a young age on testicular development and differentiation. Objectives: Our study aimed to evaluate the long-term effects of acute supplementation at an early age, in the post-natal period, on spermatogenesis and testicular trophicity at adult age. Material and Methods: Young Wistar Albinos rats of 22 days received an acute high dose of supplementation of vitamin A (retinyl palmitate). The control group, group 1, received only extra virgin olive oil, Group 2 a dose of 7000 IU/kg of retinyl palmitate, group 3, 14,000 IU/kg, and Group 4 a dose of 28,000 IU/kg. At 10 weeks of age, the testes’ testosterone levels were measured by ELISA. For histological assessment, sections were stained with Hematoxylin eosin, and the Johnsen score was used to evaluate spermatogenesis in the seminiferous tubules. Results: The average testicular weights of rats were significantly lower in group 4 (p < 0.05), and so was the testosterone level in the testis compared to the control group (p .01). Most of the seminiferous tubules were concerned by an arrest of spermatogenesis and the Johnsen score was decreased with a mean score of 5.96 ± 1.60 (p .001) in that Group. In Group 3, Johnsen’s score was significantly better than the one obtained with the control. Conclusion: We observed a negative effect in the long term with a high acute dose of supplementation of retinyl palmitate at a young age, on testicular development and differentiation. Despite a return to normal diet after that supplementation, during childhood, impaired spermatogenesis was identified at the adult age with an arrest of spermatogenesis. The reversibility of that lack of differentiation by a return to a normal diet is questionable and would need more investigation. 展开更多
关键词 Vitamin A Retinyl Palmitate SPERMATOGENESIS Testis-Wistar Albino rats
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Dry environment on the expression of lacrimal gland S100A9,Anxa1,and Clu in rats via proteomics
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作者 Yi-Lin Sun A-Yuan Cui +2 位作者 Li-Xin Wang Wang-Wang Zhang Hong Shi 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2024年第3期435-443,共9页
●AIM:To investigate the underlying mechanism of dry environment(autumn dryness)affecting the lacrimal glands in rats.●METHODS:Twenty Sprague-Dawley rats were randomly divided into two groups.The rats were fed in spe... ●AIM:To investigate the underlying mechanism of dry environment(autumn dryness)affecting the lacrimal glands in rats.●METHODS:Twenty Sprague-Dawley rats were randomly divided into two groups.The rats were fed in specific pathogen free environment as the control group(n=10),and the rats fed in dry environment as the dryness group(n=10).After 24d,lacrimal glands were collected from the rats.The tissues morphology was observed by hematoxylineosin(HE)staining.Tandem mass tags(TMT)quantitative proteomics analysis technology was used to screen the differential expressed proteins of lacrimal glands between the two groups,then bioinformatics analysis was performed.Further,the immunohistochemical(IHC)method was used to verify the target proteins.●RESULTS:In dryness group,the lacrimal glands lobule atrophied,the glandular cavities enlarged,the sparse nuclear distribution and scattered inflammatory infiltration between the acinus were observed.The proteomics exhibited that a total of 195 up-regulated and 236 downregulated differential expressed proteins screened from the lacrimal glands of rats.It was indicated that the biological processes(BP)of differential expressed proteins mainly included cell processes and single BP.The cellular compositions of differential expressed proteins mainly located in cells,organelles.The molecular functions of differential expressed proteins mainly included binding,catalytic activity.Moreover,the Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway analysis showed that the differential expressed proteins mainly involved lysosome,complement and coagulation cascade,and ribosome pathway.The IHC result verified that the up-regulated expression proteins of Protein S100A9(S100A9),Annexin A1(Anxa1),and Clusterin(Clu)in lacrimal glands of rats in dryness group were higher than control group.●CONCLUSION:The up-regulated expression proteins of S100A9,Anxa1,and Clu may be the potential mechanisms of dry eye symptoms caused by dry environment.This study provides clues of dry environments causing eye-related diseases for further studies. 展开更多
关键词 dry eye lacrimal gland S100A9 Clu Anxa1 ENVIRONMENT rats
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Xuebijing improves intestinal microcirculation dysfunction in septic rats by regulating the VEGF-A/PI3K/Akt signaling pathway
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作者 A-ling Tang Yan Li +4 位作者 Li-chao Sun Xiao-yu Liu Nan Gao Sheng-tao Yan Guo-qiang Zhang 《World Journal of Emergency Medicine》 SCIE CAS CSCD 2024年第3期206-213,共8页
BACKGROUND:This study aims to explore whether Xuebijing(XBJ) can improve intestinal microcirculation dysfunction in sepsis and its mechanism.METHODS:A rat model of sepsis was established by cecal ligation and puncture... BACKGROUND:This study aims to explore whether Xuebijing(XBJ) can improve intestinal microcirculation dysfunction in sepsis and its mechanism.METHODS:A rat model of sepsis was established by cecal ligation and puncture(CLP).A total of 30 male SD rats were divided into four groups:sham group,CLP group,XBJ + axitinib group,and XBJ group.XBJ was intraperitoneally injected 2 h before CLP.Hemodynamic data(blood pressure and heart rate) were recorded.The intestinal microcirculation data of the rats were analyzed via microcirculation imaging.Enzyme-linked immunosorbent assay(ELISA) kits were used to detect the serum levels of interleukin-6(IL-6),C-reactive protein(CRP),and tumor necrosis factor-α(TNF-α) in the rats.Histological analysis and transmission electron microscopy were used to analyze the injury of small intestinal microvascular endothelial cells and small intestinal mucosa in rats.The expression of vascular endothelial growth factor A(VEGF-A),phosphoinositide 3-kinase(PI3K),phosphorylated PI3K(p-PI3K),protein kinase B(Akt),and phosphorylated Akt(p-Akt) in the small intestine was analyzed via Western blotting.RESULTS:XBJ improved intestinal microcirculation dysfunction in septic rats,alleviated the injury of small intestinal microvascular endothelial cells and small intestinal mucosa,and reduced the systemic inflammatory response.Moreover,XBJ upregulated the expression of VEGF-A,p-PI3K/total PI3K,and p-Akt/total Akt in the rat small intestine.CONCLUSION:XBJ may improve intestinal microcirculation dysfunction in septic rats possibly through the VEGF-A/PI3K/Akt signaling pathway. 展开更多
关键词 SEPSIS XUEBIJING Vascular endothelial growth factor A MICROCIRCULATION rat Phosphoinositide 3-kinase Protein kinase B
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Influence of different magnetic forces on the effect of colonic anastomosis in rats
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作者 Bo-Yan Tian Miao-Miao Zhang +2 位作者 Jia Ma Yi Lyu Xiao-Peng Yan 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第3期860-870,共11页
BACKGROUND Despite much work having been conducted on magnetic compression anastomo-sis(MCA)in the digestive tract,there are no reports on the influence of magnetic force on the anastomosis.AIM To investigate the effe... BACKGROUND Despite much work having been conducted on magnetic compression anastomo-sis(MCA)in the digestive tract,there are no reports on the influence of magnetic force on the anastomosis.AIM To investigate the effect of different magnetic force magnets on the MCA of the digestive tract.METHODS Two groups of magnets of the same sizes but different magnetic forces were designed and produced.A total of 24 Sprague-Dawley rats were randomly assigned into two groups(powerful magnet group and common magnet group),with 12 rats in each group.Two types of magnets were used to complete the colonic side-to-side anastomosis of the rats.The operation time and magnet discharge time were recorded.The anastomotic specimens were obtained 4 wk after the operation and then the burst pressure and diameter of the anastomosis were measured,and the anastomosis was observed via the naked eye and subjected to histological examination.RESULTS The magnetic forces of the powerful and common magnet groups at zero distance were 8.26 N and 4.10 N,respectively.The colonic side-to-side anastomosis was completed in all 24 rats,and the operation success rate and postoperative survival rate were 100%.No significant difference was noted in the operation time between the two groups.The magnet discharge time of the powerful magnet group was slightly longer than that of the common magnet group,but the difference was not statistically significant(P=0.513).Furthermore,there was no statistical difference in the burst pressure(P=0.266)or diameter of magnetic anastomosis(P=0.095)between the two groups.The gross specimens of the two groups showed good anastomotic healing,and histological observation indicated good mucosal continuity without differences on healing.CONCLUSION In the rat colonic side-to-side MCA model,both the powerful magnet with 8.26 N and the common magnet with 4.10 N showed no significant impact on the anastomosis establishment process or its effect. 展开更多
关键词 Magnetosurgery Magnetic compression anastomosis Colonic anastomosis Magnetic force rats
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Identifying the stability of housekeeping genes to be used for the quantitative real-time PCR normalization in retinal tissue of streptozotocin-induced diabetic rats
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作者 Muhammad Zulfiqah Sadikan Nurul Alimah Abdul Nasir +2 位作者 Mohammad Johari Ibahim Igor Iezhitsa Renu Agarwal 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2024年第5期794-805,共12页
AIM:To investigate the stability of the seven housekeeping genes:beta-actin(ActB),glyceraldehyde-3-phosphate dehydrogenase(GAPDH),18s ribosomal unit 5(18s),cyclophilin A(CycA),hypoxanthine-guanine phosphoribosyl trans... AIM:To investigate the stability of the seven housekeeping genes:beta-actin(ActB),glyceraldehyde-3-phosphate dehydrogenase(GAPDH),18s ribosomal unit 5(18s),cyclophilin A(CycA),hypoxanthine-guanine phosphoribosyl transferase(HPRT),ribosomal protein large P0(36B4)and terminal uridylyl transferase 1(U6)in the diabetic retinal tissue of rat model.METHODS:The expression of these seven genes in rat retinal tissues was determined using real-time quantitative reverse transcription polymerase chain reaction(RT-qPCR)in two groups;normal control rats and streptozotocininduced diabetic rats.The stability analysis of gene expression was investigated using geNorm,NormFinder,BestKeeper,and comparative delta-Ct(ΔCt)algorithms.RESULTS:The 36B4 gene was stably expressed in the retinal tissues of normal control animals;however,it was less stable in diabetic retinas.The 18s gene was expressed consistently in both normal control and diabetic rats’retinal tissue.That this gene was the best reference for data normalisation in RT-qPCR studies that used the retinal tissue of streptozotocin-induced diabetic rats.Furthermore,there was no ideal gene stably expressed for use in all experimental settings.CONCLUSION:Identifying relevant genes is a need for achieving RT-qPCR validity and reliability and must be appropriately achieved based on a specific experimental setting. 展开更多
关键词 housekeeping genes stability real-time reverse transcription polymerase chain reaction retinal tissue streptozotocin-induced diabetic rats
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Protective Effect of Naringenin on Acute Myocardial Ischemia-reperfusion Injury in Rats
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作者 Xia ZHANG Ping ZHOU +3 位作者 Juan LI Zhaojun XIANG Qianqian LUO Qing DENG 《Medicinal Plant》 2024年第3期50-52,共3页
[Objectives]To investigate the protective mechanism of naringenin on acute myocardial ischemia-reperfusion injury(AMI-RI)in Sprague-Dawley(SD)rats.[Methods]A total of 32 SD rats with AMI-RI model construction were ran... [Objectives]To investigate the protective mechanism of naringenin on acute myocardial ischemia-reperfusion injury(AMI-RI)in Sprague-Dawley(SD)rats.[Methods]A total of 32 SD rats with AMI-RI model construction were randomly divided into AMI-RI model control group and citrus pigment A/B/C groups(n=8).The naringenin A,B,and C groups were administrated 20,40 and 80 mg/(kg•d)for 10 d.The AMI group served as the negative control and was not treated.At the conclusion of the treatment regimen,a sample of intraventricular blood was collected for the purpose of measuring lactate dehydrogenase(LDH),glutathione peroxidase(GLH-PX),nitric oxide(NO),and superoxide dismutase(SOD)levels.Additionally,myocardial tissue was identified within the ischemic region.The content of malondialdehyde(MDA)was determined by inducing nitric oxide synthase(iNOS)and endodermal nitric oxide synthase(eNOS)positive cells in the left anterior descending coronary artery.[Results]Following citrus treatment,the contents of GLH-PX and SOD in ventricular blood of the citrus B group were found to be significantly elevated,while the contents of NO and LDH in myocardial MDA and ventricle were observed to be significantly reduced.The number of eNOS-positive cells was significantly increased,while the number of iNOS-positive cells was significantly decreased.The difference was statistically significant when compared with the AMI-RI group(P<0.05).The changes observed in the above indicators in the citrus C group were more pronounced than those observed in the citrus B group.The difference between the citrus C and the B group was statistically significant(P<0.05),indicating that this effect is concentration dependent.[Conclusions]In addition to its ability to inhibit myocardial lipid peroxidation during AMI-RI by increasing SOD activity,naringenin may also affect the synthesis and release of NO by regulating eNOS and iNOS,thereby achieving protection against AMI-RI.One effect is enhanced as the dose of the drug increases. 展开更多
关键词 rat NARINGENIN Acute myocardial ISCHEMIA-REPERFUSION Lipid PEROXIDATION Inducible/endothelial NITRIC oxide SYNTHASE
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N-acetylserotonin alleviates retinal ischemia-reperfusion injury via HMGB1/RAGE/NF-κB pathway in rats
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作者 Yu-Ze Zhao Xue-Ning Zhang +7 位作者 Yi Yin Pei-Lun Xiao Meng Gao Lu-Ming Zhang Shuan-Hu Zhou Shu-Na Yu Xiao-Li Wang Yan-Song Zhao 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2024年第2期228-238,共11页
AIM:To observe the effects of N-acetylserotonin(NAS)administration on retinal ischemia-reperfusion(RIR)injury in rats and explore the underlying mechanisms involving the high mobility group box 1(HMGB1)/receptor for a... AIM:To observe the effects of N-acetylserotonin(NAS)administration on retinal ischemia-reperfusion(RIR)injury in rats and explore the underlying mechanisms involving the high mobility group box 1(HMGB1)/receptor for advanced glycation end-products(RAGE)/nuclear factor-kappa B(NF-κB)signaling pathway.METHODS:A rat model of RIR was developed by increasing the pressure of the anterior chamber of the eye.Eighty male Sprague Dawley were randomly divided into five groups:sham group(n=8),RIR group(n=28),RIR+NAS group(n=28),RIR+FPS-ZM1 group(n=8)and RIR+NAS+FPS-ZM1 group(n=8).The therapeutic effects of NAS were examined by hematoxylin-eosin(H&E)staining,and retinal ganglion cells(RGCs)counting.The expression of interleukin 1 beta(IL-1β),HMGB1,RAGE,and nod-like receptor 3(NLRP3)proteins and the phosphorylation of nuclear factorkappa B(p-NF-κB)were analyzed by immunohistochemistry staining and Western blot analysis.The expression of HMGB1 protein was also detected by enzyme-linked immunosorbent assay(ELISA).RESULTS:H&E staining results showed that NAS significantly reduced retinal edema and increased the number of RGCs in RIR rats.With NAS therapy,the HMGB1 and RAGE expression decreased significantly,and the activation of the NF-κB/NLRP3 pathway was antagonized along with the inhibition of p-NF-κB and NLRP3 protein expression.Additionally,NAS exhibited an anti-inflammatory effect by reducing IL-1βexpression.The inhibitory of RAGE binding to HMGB1 by RAGE inhibitor FPS-ZM1 led to a significant decrease of p-NF-κB and NLRP3 expression,so as to the IL-1βexpression and retinal edema,accompanied by an increase of RGCs in RIR rats.CONCLUSION:NAS may exhibit a neuroprotective effect against RIR via the HMGB1/RAGE/NF-κB signaling pathway,which may be a useful therapeutic target for retinal disease. 展开更多
关键词 retinal diseases retinal ischemia—reperfusion injury N-ACETYLSEROTONIN high mobility group box 1 receptor for advanced glycation end-products nuclear factor-κB rats
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Effects of Melatonin on Spermatozoa Activity and Associated Mechanisms in Heat-Stressed Rats
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作者 Kai Tan Wenduo Chen +1 位作者 Jing Huang Jianzhi Pan 《Journal of Clinical and Nursing Research》 2024年第7期97-111,共15页
In animals,heat stress(HS)disrupts spermatogenesis,reducing sperm quality and,in severe cases,potentially inducing the loss of male reproductive function.Melatonin confers significant resistance to oxidative stress an... In animals,heat stress(HS)disrupts spermatogenesis,reducing sperm quality and,in severe cases,potentially inducing the loss of male reproductive function.Melatonin confers significant resistance to oxidative stress and apoptosis;however,its specific effects on rat spermatocytes and the mechanism underlying its anti-HS effects remain inadequately explored.Therefore,this study aimed to analyze the effects of melatonin at different concentrations on sperm cell activity in heat-stressed rats.Modeling heat stress injury,sperm viability and density assay,sperm plasma membrane integrity analysis,and oxidative stress assay of testicular tissue were conducted.The results revealed that HS caused sperm cell injury.However,the intraperitoneal injection of melatonin effectively improved spermatozoa quality,and a dose of 1 mM significantly alleviated the HS-induced damage.Moreover,HS increased the levels of oxidative and endoplasmic reticulum(ES)stress in rat testicular tissues,inducing germ cell apoptosis and pathological changes.Similarly,melatonin treatment improved sperm cell viability and density,inhibited germ cell apoptosis,and reduced oxidative and ES stress levels.Overall,melatonin effectively reduced the adverse effects of HS on rat sperm cells,and an intraperitoneal injection of 1 mM(0.6966 mg)melatonin facilitated the normal production of spermatozoa.Notably,its mechanism may involve reduced ES and oxidative stress levels in testicular tissues,increased expression of the anti-apoptotic protein Bcl-2,and inhibition of germ cell apoptosis. 展开更多
关键词 MELATONIN rat SPERMATOCYTE SPERMATOGENESIS ANTIOXIDANT
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Experimental models of high-risk bowel anastomosis in rats:A systematic review
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作者 Georgios Ntampakis Manousos-Georgios Pramateftakis +8 位作者 Elissavet Anestiadou Stefanos Bitsianis Orestis Ioannidis Chryssa Bekiari George Koliakos Maria Karakota Anastasia Tsakona Angeliki Cheva Stamatios Angelopoulos Fourth 《World Journal of Experimental Medicine》 2024年第2期114-131,共18页
BACKGROUND Anastomotic leaks remain one of the most dreaded complications in gastrointestinal surgery causing significant morbidity,that negatively affect the patients’quality of life.Experimental studies play an imp... BACKGROUND Anastomotic leaks remain one of the most dreaded complications in gastrointestinal surgery causing significant morbidity,that negatively affect the patients’quality of life.Experimental studies play an important role in understanding the pathophysiological background of anastomotic healing and there are still many fields that require further investigation.Knowledge drawn from these studies can lead to interventions or techniques that can reduce the risk of anastomotic leak in patients with high-risk features.Despite the advances in experimental protocols and techniques,designing a high-quality study is still challenging for the investigators as there is a plethora of different models used.AIM To review current state of the art for experimental protocols in high-risk anastomosis in rats.METHODS This systematic review was performed according to The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.To identify eligible studies,a comprehensive literature search was performed in the electronic databases PubMed(MEDLINE)and Scopus,covering the period from conception until 18 October 2023.RESULTS From our search strategy 102 studies were included and were categorized based on the mechanism used to create a high-risk anastomosis.Methods of assessing anastomotic healing were extracted and were individually appraised.CONCLUSION Anastomotic healing studies have evolved over the last decades,but the findings are yet to be translated into human studies.There is a need for high-quality,well-designed studies that will help to the better understanding of the pathophysiology of anastomotic healing and the effects of various interventions. 展开更多
关键词 High-risk anastomosis rats Experimental models BOWEL COLON Anastomotic leak Colon resection Inflammatory bowel disease Intra-abdominal sepsis Bursting pressure
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Study on the Therapeutic Effects and Mechanisms of Human Mesenchymal Stem Cell-Derived Exosomes Carrying NGF Gene in Treating Ischemic Stroke in Rats
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作者 Bingqian Li Xuanxuan Xu +1 位作者 Wenqin Zhou Peng Wang 《Proceedings of Anticancer Research》 2024年第4期41-47,共7页
Objective:To investigate the therapeutic effects and mechanisms of human mesenchymal stem cell-derived exosomes(hMSCs-Exo)carrying the NGF gene in treating ischemic stroke in rats,aiming to provide new insights and tr... Objective:To investigate the therapeutic effects and mechanisms of human mesenchymal stem cell-derived exosomes(hMSCs-Exo)carrying the NGF gene in treating ischemic stroke in rats,aiming to provide new insights and treatment methods for ischemic stroke therapy.Methods:After successful construction of the cerebral ischemia model in 40 male SPF-grade SD rats aged 6-8 weeks,the model rats were randomly divided into 4 groups:Sham group,PBS group,hMSCs-Exo group,and NGF-hMSCs-Exo group,with 10 rats in each group.The rat MCAO model was prepared using the classic filament method,and NGF-hMSCs-Exo were injected via the tail vein into the MCAO model rats.The expression of the NGF gene in brain ischemic tissues,neuronal regeneration,and rat neurological function recovery were observed using TTC staining,memory function evaluation,Western blot,qRT-PCR,and other methods.Results:Compared with the Sham group,neurological deficits were significant in the PBS group(P<0.01).Compared with the PBS group,neurological scores improved in the hMSCs-Exo group and NGF-hMSCs-Exo group(P<0.05).Compared with the hMSCs-Exo group,the improvement in neurological deficits was more significant in the NGF-hMSCs-Exo group(P<0.05).The infarct area after NGF-hMSCs-Exo intervention was significantly reduced(P<0.05)compared with the Sham group.Compared with the PBS group,relative expression levels of NGF mRNA and protein decreased,while Caspase-3 mRNA and protein expression significantly increased in the PBS group(P<0.01).Compared with the PBS group and hMSCs-Exo group,there were differences in NGF and Caspase-3 mRNA and protein expression in the NGF-hMSCs-Exo group rat brain tissues(P<0.05).Conclusion:Treatment with human mesenchymal stem cell-derived exosomes carrying the NGF gene improves cognitive function and exerts protective effects on SD rats while inhibiting apoptotic levels in cells. 展开更多
关键词 NGF gene Human mesenchymal stem cell-derived exosomes Ischemic stroke in rats Mechanism of action
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Proteomics analysis of liver proteins from rats with spleen-deficiency syndrome induced by chronic improper diet consumption and fatigue 被引量:1
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作者 Cong Li Ronghua Zhao +2 位作者 Mine Xie Zhengguang Guo Wei Sun 《Journal of Traditional Chinese Medical Sciences》 2017年第2期113-126,共14页
Objective:To investigate a proteomics analysis of liver proteins from rats with spleen-deficiency syndrome (SDS) induced by chronic improper diet consumption and fatigue.Methods:This study used a liver proteomic profi... Objective:To investigate a proteomics analysis of liver proteins from rats with spleen-deficiency syndrome (SDS) induced by chronic improper diet consumption and fatigue.Methods:This study used a liver proteomic profiling method to identify differentially expressed proteins and altered pathways involved in SDS rats.Specifically,we collected liver samples from a control group and a group with SDS induced by chronic improper diet consumption and fatigue for 4 weeks.The pooled liver proteins in each group were labeled with 8-plex isobaric tags for relative and absolute quantitation reagents.The labeled control and SDS group samples were pooled together and separated by high-pH reverse-phase liquid chromatography.The differentially expressed proteins from the liver proteomes were analyzed to identify potential biomarkers of SDS.Differentially expressed proteins were selected in conjunction with gene ontology and ingenuity pathway analysis.Results:We identified 2176 protein clusters with more than two peptides in the SDS group,with 141 proteins quantified as differentially expressed proteins.Of these,75 proteins were up-regulated,and 66 were down-regulated.Three activated signaling pathways,the thrombin,CXCR4 and synaptic long term depression signaling pathways,and a large multi-protein complex within the network were revealed in the liver proteomic analysis of SDS rats.Conclusions:This is the first report of a differential liver proteome under SDS conditions.The results suggest that the liver proteome partially reflects the pathological changes involved in SDS.The findings provide important information for comprehensively understanding the mechanisms of dysfunction or injury in the liver at the molecular level as a result of SDS.Furthermore,they provide a novel understanding of the connotation of SDS in the fleld of traditional Chinese Medicine. 展开更多
关键词 spleen-deficiency syndrome PROTEOMICS ANALYSIS Liver IMPROPER diet consumption FATIGUE
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Effect of Moxibustion on the Motility, Absorption and Activities of ATPase in Small Intestine of Spleen-deficiency Rats
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作者 Peng Yan Yi Shou-xiang +4 位作者 Peng Fen Long Yi-wen Lin Ya-ping Chang Xiao-rong Xu Bin 《Journal of Acupuncture and Tuina Science》 2014年第2期67-72,共6页
Objective: To observe the effect of moxibustion on intestinal propulsion rate, content of serum D-xylose, content of adenosine triphosphate(ATP) and activities of adenosine triphosphatases(ATPase) in jejunum tissues o... Objective: To observe the effect of moxibustion on intestinal propulsion rate, content of serum D-xylose, content of adenosine triphosphate(ATP) and activities of adenosine triphosphatases(ATPase) in jejunum tissues of spleen-deficiency rats, and to explore the effect of moxibustion on the production of ATP and activities of membrane proteins, for analyzing the mechanism of moxibustion in reinforcing the spleen-stomach. Methods: Forty healthy Sprague Dawley rats were randomly divided into four groups, namely group A(blank control group), group B(model control group), group C(moxibustion group) and group D(herbs group). The animal model of spleen-deficiency was established by intragastric administration with Da Huang(Radix et Rhizoma Rhei) infusion. The rats in group C received moxibustion at Zusanli(ST 36), Zhongwan(CV 12), Guanyuan(CV 4), Pishu(BL 20) and Weishu(BL 21). The rats in group D received intragastric administration with Si Jun Zi decoction. The intestinal propulsion was measured by toner method, and the content of D-xylose in serum was detected by phloroglucinol method. Colorimetry method was used to detect the content of ATP and activities of Na+-K+-ATPase and Ca2+-Mg2+-ATPase in jejunum tissues. Results: Compared with group A, the intestinal propulsion rate, content of D-xylose in serum, content of ATP, activities of Na+-K+-ATPase and Ca2+-Mg2+-ATP in jejunum tissues decreased significantly in group B(P<0.05 or P<0.01). Compared with group B, the intestinal propulsion rate, content of D-xylose in serum, content of ATP, activities of Na+-K+-ATPase and Ca2+-Mg2+-ATPase in jejunum tissues increased significantly in group C and D(P<0.05 or P<0.01), while there were no significant differences between group C and group D. Conclusion: Moxibustion can increase the intestinal propulsion rate, content of D-xylose in serum and ATP in jejunum tissues, as well as the activities of Na+-K+-ATPase and Ca2+-Mg2+-ATPase of spleen-deficiency rats, which suggests that moxibustion can enhance the motility and absorption functions of small intestine by promoting the production of ATP in intestinal epithelial cells, increasing the content of membrane proteins, and improving transmembrane transport. 展开更多
关键词 艾灸治疗 怒气缺乏 腺苷 Triphosphate (ATP ) 腺苷 Triphosphatases 老鼠 R2-03
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Formation process of extension knee joint contracture following external immobilization in rats 被引量:1
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作者 Chen-Xu Zhou Feng Wang +2 位作者 Yun Zhou Qiao-Zhou Fang Quan-Bing Zhang 《World Journal of Orthopedics》 2023年第9期669-681,共13页
BACKGROUND Current research lacks a model of knee extension contracture in rats.AIM To elucidate the formation process of knee extension contracture.METHODS We developed a rat model using an aluminum external fixator.... BACKGROUND Current research lacks a model of knee extension contracture in rats.AIM To elucidate the formation process of knee extension contracture.METHODS We developed a rat model using an aluminum external fixator.Sixty male Sprague-Dawley rats with mature bones were divided into the control group(n=6)and groups that had the left knee immobilized with an aluminum external fixator for 1,2,and 3 d,and 1,2,3,4,6,and 8 wk(n=6 in each group).The passive extension range of motion,histology,and expression of fibrosis-related proteins were compared between the control group and the immobilization groups.RESULTS Myogenic contracture progressed very quickly during the initial 2 wk of immobilization.After 2 wk,the contracture gradually changed from myogenic to arthrogenic.The arthrogenic contracture progressed slowly during the 1^(st) week,rapidly progressed until the 3^(rd) week,and then showed a steady progression until the 4^(rd) week.Histological analyses confirmed that the anterior joint capsule of the extended fixed knee became increasingly thicker over time.Correspondingly,the level of transforming growth factor beta 1(TGF-β1)and phosphorylated mothers against decapentaplegic homolog 2(p-Smad2)in the anterior joint capsule also increased with the immobilization time.Over time,the cross-sectional area of muscle fibers gradually decreased,while the amount of intermuscular collagen and TGF-β1,p-Smad2,and p-Smad3 was increased.Unexpectedly,the amount of intermuscular collagen and TGF-β1,p-Smad2,and p-Smad3 was decreased during the late stage of immobilization(6-8 wk).The myogenic contracture was stabilized after 2 wk of immobilization,whereas the arthrogenic contracture was stabilized after 3 wk of immobilization and completely stable in 4 wk.CONCLUSION This rat model may be a useful tool to study the etiology of joint contracture and establish therapeutic approaches. 展开更多
关键词 Knee joint IMMOBILIZATION CONTRACTURE External fixator rats
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Protective effect of liraglutide on the myocardium of type 2 diabetic rats by inhibiting polyadenosine diphosphate-ribose polymerase-1 被引量:1
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作者 Dong-Dong Xue Xiang Zhang +2 位作者 De-Wei Li Yan-Lan Yang Jing-Jin Liu 《World Journal of Diabetes》 SCIE 2023年第2期110-119,共10页
BACKGROUND In recent years,studies have found that the occurrence and development of diabetic cardiomyopathy(DCM)is closely related to an increase in polyadenosine diphosphate-ribose polymerase-1(PARP-1)activity.PARP-... BACKGROUND In recent years,studies have found that the occurrence and development of diabetic cardiomyopathy(DCM)is closely related to an increase in polyadenosine diphosphate-ribose polymerase-1(PARP-1)activity.PARP-1 activation could be involved in the pathophysiological process of DCM by promoting oxidative stress,the inflammatory response,apoptosis and myocardial fibrosis.AIM To investigate the mechanism of liraglutide in improving myocardial injury in type 2 diabetic rats,further clarified the protective effect of liraglutide on the heart,and provided a new option for the treatment of DCM.METHODS Forty healthy male SD rats aged 6 wk were randomly divided into two groups,a normal control group(n=10)and a model group(n=30),which were fed an ordinary diet and a high-sugar and high-fat diet,respectively.After successful modeling,the rats in the model group were fed a high-glucose and high-fat diet for 4 wk and randomly divided into a model group and an intervention group(further divided into a high-dose group and a low-dose group).The rats were fed a high-glucose and high-fat diet for 8 wk and then started drug intervention.Blood samples were collected from the abdominal aorta to detect fasting blood glucose and lipid profiles.Intact heart tissue was dissected,and its weight was used to calculate the heart weight index.Haematoxylin and eosin staining was used to observe the pathological changes in the myocardium and the expression of PARP-1 in the heart by immunohistochemistry.RESULTS The body weight and heart weight index of rats in the model group were significantly increased compared with those in the normal control group,and those in the intervention group were decreased compared with those in the model group,with a more obvious decrease observed in the high-dose group(P<0.05).In the model group,myocardial fibers were disordered,and inflammatory cells and interstitial fibrosis were observed.The cardiomyopathy of rats in the intervention group was improved to different degrees,the myocardial fibers were arranged neatly,and the myocardial cells were clearly striated;the improvement was more obvious in the high-dose group.Compared with the normal control group,the expression of PARP-1 in myocardial tissue of the model group was increased,and the difference was statistically significant(P<0.05).After liraglutide intervention,compared with the model group,the expression of PARP-1 in myocardial tissue was decreased,and the reduction was more obvious in the high-dose group(P<0.05)but still higher than that in the normal control group.CONCLUSION Liraglutide may improve myocardial injury in type 2 diabetic rats by inhibiting the expression of myocardial PARP-1 in a dose-dependent manner. 展开更多
关键词 LIRAGLUTIDE animal models Type 2 diabetic rats Polyadenosine diphosphate-ribose polymerase-1 Haematoxylin and eosin staining Immunohistochemistry
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Radioprotective Potencies of Allium Cepa Extract (ACE) against Radiation-Induced Hepatoxicity in Wistar Rats
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作者 Sylvester Kelechi Kenneth Okeke Francisca Nneka +1 位作者 Agwu Kenneth Kalu Attah Okwudili Joseph 《International Journal of Medical Physics, Clinical Engineering and Radiation Oncology》 2023年第3期59-83,共25页
Background and Purpose: All types of ionizing radiations generate ions which can lead to the formation of free radicals and reactive oxygen species (ROS). Excess production of free radicals or decrease in antioxidants... Background and Purpose: All types of ionizing radiations generate ions which can lead to the formation of free radicals and reactive oxygen species (ROS). Excess production of free radicals or decrease in antioxidants level leads to oxidative stress. It is a harmful process that induces damage to cell structures, lipids, proteins, RNA and DNA which leads to a number of diseases. The aim of this study is to examine the effect of plant extract (Allium Cepa Extract (ACE)) on the kidney of wistar rats exposed to radiation using and assaying some biochemical enzymes. Material and Method: 60 wistar rats weighing 170 ± 20 g were equally divided into six groups for the study. Group 1 (control): neither received ACE nor irradiation. Group 2 (ACE): received 1000 mg/Kg b.wt of ACE. Group 3 (4 Gy-Irradiated): were exposed to 4 Gy TBI on day 14. Group 4 (6 Gy-Irradiated): were exposed to 6 Gy TBI on day 14. Group 5 (ACE + 4 Gy): were treated with 1000 mg/Kg b.wt of ACE once daily for twenty-eight days but exposed to 4 Gy TBI on day 14. Group 6 (ACE + 6 Gy): were treated with 1000 mg/Kg b.wt of ACE once daily for twenty-eight days but exposed to 6 Gy TBI on day 14. All the groups received distilled water and feed ad libitum during the acclimatization and experimental periods. Four animals in each group were sacrificed 24 h after irradiation and the 4 remaining animals were sacrificed on day 29 for biochemical assay and histopathological evaluation, the statistical analysis was done using one-way analysis of variance (ANOVA) on the data editor SPSS version 28. Results: From the biochemical enzymes, the level of Malondialdehyde (MDA) in group 2 when compared to group 1 was almost the same, which was not statically significant with (p > 0.05), but groups 3 and 4 show a significant increase in the level of MDA with (p < 0.05) while group 5 and 6 showed no significant increase in MAD with (p > 0.05). The other enzymes like SOD, CAT, GST, and GSH followed suit. Conclusion: From the results it is a clear indication that Allium Cepa Extract can ameliorate the effect of radiation induced disease. 展开更多
关键词 Allium Cepa Winstar rat MDA SOD Hepatoxicity
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Melatonin alleviates oxidative stress,inflammation,apoptosis,and DNA damage in acrylamide-induced nephrotoxicity in rats
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作者 Fatmaİbaokurgil Hakan Aydin +1 位作者 Serkan Yildirim Emin Sengul 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2023年第3期121-130,共10页
Objective:To investigate the effects of melatonin on renal inflammation,oxidative stress,apoptosis,as well as DNA and tissue damage in acrylamide-induced nephrotoxicity in rats.Methods:Fifty male rats were randomly di... Objective:To investigate the effects of melatonin on renal inflammation,oxidative stress,apoptosis,as well as DNA and tissue damage in acrylamide-induced nephrotoxicity in rats.Methods:Fifty male rats were randomly divided into five groups.The control group received distilled water by gastric lavage for 11days and the acrylamide group was administered acrylamide(50 mg/kg,i.g.)for 11 days.The MEL10+ACR and MEL20+ACR groups received intraperitoneal melatonin 10 and 20 mg/kg,respectively,for 11 days,and acrylamide(50 mg/kg,i.g.)was administered 1h after melatonin injection.The MEL20 group was injected with melatonin(20 mg/kg)for 11 days.Kidney function tests were performed and biochemical and inflammatory parameters were determined.In addition,histopathological,immunohistochemical,and immunofluorescence examinations were carried out.Results:Melatonin significantly abated acrylamide-induced rise in serum urea and creatinine levels.Acrylamide caused oxidative stress,inflammation,apoptosis,as well as DNA and tissue damage in the kidneys.Melatonin treatment alleviated acrylamide-induced renal damage by exhibiting antioxidant,anti-inflammatory,and antiapoptotic effects.Moreover,melatonin significantly ameliorated acrylamide-caused histopathological changes in kidney tissue.Conclusions:Melatonin attenuates acrylamide-induced renal oxidative stress,inflammation,apoptosis,and DNA damage in rats. 展开更多
关键词 Acrylamide APOPTOSIS INFLAMMATION MELATONIN NEPHROTOXICITY Oxidative stress rat
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Aqueous Leaf Extract of Moringa oleifera (Moringaceae) Effectively Treats Induced Hemolytic Anemia in Wistar Rats
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作者 Semado Franck Médard Tchogou Atchadé Pascal +9 位作者 Medoatinsa Seinde Espérance Agbogba Félicienne Abissi Yollande Kassa Roxane Lokonon Jacques Ezéchiel Houngbeme Alban Agbonon Amegnon Gbénou Joachim Djimon Baba-Moussa Lamine Senou Maximin 《Journal of Biosciences and Medicines》 2023年第8期154-168,共15页
Introduction: Moringa oleifera was a medicinal plant generally used by populations in the food and therapeutic fields. It’s used to treat anemia has been observed in the Djougou Zone in northern Benin. To our knowled... Introduction: Moringa oleifera was a medicinal plant generally used by populations in the food and therapeutic fields. It’s used to treat anemia has been observed in the Djougou Zone in northern Benin. To our knowledge, there were no scientific data available that have evaluated its efficacy in the treatment of haemolytic anemia. This was what justifies this research work in which the phytochemical analysis, extraction and evaluation of the anti-anemic effect were carried out. Methods: Five groups of five Wistar rats each were formed. All the rats were rendered anemic by injection of phenylhydrazine hydrochloride on the first two days D0 and D1 except those in the negative control group. From the second day, the anemic groups were force-fed either with the aqueous extract of Moringa oleifera leaves at 200 or 300 mg/kg body weight/day, or with vitafer, the reference drug against anemia. The positive control group (anemia) was not treated. Blood samples were taken from all the rats on different days: D0, D2, D7, D10 and D15 to evaluate the data of the hemogram and the osmotic resistance of the red blood cells. Results: Phytochemical analysis revealed the presence of tannins, flavonoids, leucoanthocyanins, saponosides, triterpenes and mucilages. A good yield was obtained at the extraction. Both the extract and the reference drug vitafer completely corrected anemia within two weeks after stimulating hemoglobin synthesis and early release of immature red blood cells into the bloodstream. Its effect seemed dose-dependent and specific. Conclusion: Moringa oleifera leaves showed good therapeutic efficacy and can be considered and exploited for transformation into improved traditional medicines (ITM) in the treatment of anemia. 展开更多
关键词 Moringa oleifera Hemolytic Anemia Red Blood Cells Wistar rats
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