Journal of Bioenergetics and Biomembranes最新文献

{"title":"Inclusion complex of O-allyl-lawsone with 2-hydroxypropyl-β-cyclodextrin: Preparation, physical characterization, antiparasitic and antifungal activity.","authors":"Caroline Deckmann Nicoletti,&nbsp;Raíssa Maria Dos Santos Galvão,&nbsp;Marcella de Sá Haddad Queiroz,&nbsp;Lais Barboclher,&nbsp;Ana Flávia Martins Faria,&nbsp;Guilherme Pegas Teixeira,&nbsp;André Luis Ameida Souza,&nbsp;Fernando de Carvalho da Silva,&nbsp;Vitor Francisco Ferreira,&nbsp;Camilo Henrique da Silva Lima,&nbsp;Luana P Borba-Santos,&nbsp;Sonia Rozental,&nbsp;Débora Omena Futuro,&nbsp;Robson Xavier Faria","doi":"10.1007/s10863-023-09970-x","DOIUrl":"https://doi.org/10.1007/s10863-023-09970-x","url":null,"abstract":"<p><p>The subclass naphthoquinone represents a substance group containing several compounds with important activities against various pathogenic microorganisms. Accordingly, we evaluated O-allyl-lawsone (OAL) antiparasitic and antifungal activity free and encapsulated in 2-hydroxypropyl-β-cyclodextrin (OAL MKN) against Trypanosoma cruzi and Sporothrix spp. OAL and OAL MKN were synthesized and characterized by physicochemical methods. The IC₅₀ values of OAL against T. cruzi were 2.4 µM and 96.8 µM, considering epimastigotes and trypomastigotes, respectively. At the same time, OAL MKN exhibited a lower IC₅₀ value (0.5 µM) for both trypanosome forms and low toxicity for mammalian cells. Additionally, the encapsulation showed a selectivity index approximately 240 times higher than that of benznidazole. Regarding antifungal activity, OAL and OAL MKN inhibited Sporothrix brasiliensis growth at 16 µM, while Sporothrix schenckii was inhibited at 32 µM. OAL MKN also exhibited higher selectivity toward fungus than mammalian cells. In conclusion, we described the encapsulation of O-allyl-lawsone in 2-hydroxypropyl-β-cyclodextrin, increasing the antiparasitic activity compared with the free form and reducing the cytotoxicity and increasing the selectivity towardSporothrix yeasts and the T. cruzi trypomastigote form. This study highlights the potential development of this inclusion complex as an antiparasitic and antifungal agent to treat neglected diseases.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 3","pages":"233-248"},"PeriodicalIF":3.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9854137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alpha-lipoic acid modulates the diabetes mellitus-mediated neuropathic pain via inhibition of the TRPV1 channel, apoptosis, and oxidative stress in rats.","authors":"Betül Yazğan,&nbsp;Yener Yazğan,&nbsp;Mustafa Nazıroğlu","doi":"10.1007/s10863-023-09971-w","DOIUrl":"https://doi.org/10.1007/s10863-023-09971-w","url":null,"abstract":"<p><p>Diabetes mellitus (DM) is a chronic syndrome involving neuropathic pain. Increased oxidative stress in DM is assumed to increase free reactive oxygen radicals (ROS) and causes diabetic damage. The sciatic nerve (ScN) and dorsal root ganglion (DRG) both contain high levels of the TRPV1 channel, which is triggered by capsaicin and ROSs and results in increased Ca²⁺ entry into the neurons. Alpha-lipoic acid (ALA) is considered an important part of the antioxidant system. To better characterize the protective effects of ALA on the DM-induced neuronal through TRPV1 modulation, we investigated the role of ALA on DM-induced neuropathic pain, oxidative ScN, and DRG damage in diabetic rats. Forty adult Wistar albino female rats were divided into four groups as control, ALA (50 mg/kg for 14 days), streptozotocin (STZ and 45 mg/kg and single dose), and STZ + ALA. Rats were used for the pain tests. After obtaining the DRGs and ScN, they were used for plate reader, patch-clamp, and laser confocal microscope analyses. We observed the modulator role of ALA on the thresholds of mechanical withdrawal pain (von Frey test) and hot sensitivity pain (hot plate test) in the STZ + ALA group. The treatment of ALA decreased STZ-induced increase of TRPV1 current densities, intracellular free Ca²⁺ concentrations (Fura-2 and Fluo - 3/AM), ROS, caspase 3, caspase 9, mitochondrial membrane potential, and apoptosis values in the ScN and DRG neurons, although its treatment induced the increase of cell viability and body weight gain. The treatment of ALA acted a neuroprotective role on the TRPV1 channel stimulation-mediated Ca²⁺ influx, neuropathic pain, and neuronal damage in diabetic rats. The neuroprotective role of ALA treatment can be explained by its modulating the TRPV1 channel activity, intracellular Ca²⁺ increase-induced oxidative stress, and apoptosis.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 3","pages":"179-193"},"PeriodicalIF":3.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9856689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impaired renal ischemia reperfusion recovery after bilateral renal artery ligation in rats treated with adenine: role of renal mitochondria.","authors":"Priyanka N Prem,&nbsp;David Raj Chellappan,&nbsp;Gino A Kurian","doi":"10.1007/s10863-023-09974-7","DOIUrl":"10.1007/s10863-023-09974-7","url":null,"abstract":"<p><p>Vascular calcification (VC) and ischemia reperfusion (IR) injury is characterised to have mitochondrial dysfunction. However, the impact of dysfunctional mitochondria associated with vascular calcified rat kidney challenged to IR is not explored and is addressed in the present study. Male Wistar rats were treated with adenine for 20 days to induce chronic kidney dysfunction and VC. After 63 days, renal IR protocol was performed with subsequent recovery for 24 h and 7 days. Various mitochondrial parameters and biochemical assays were performed to assess kidney function, IR injury and its recovery. Adenine-induced rats with VC, decreased creatinine clearance (CrCl), and severe tissue injury demonstrated an increase in renal tissue damage and decreased CrCl after 24 h of IR (CrCl in ml: IR-0.220.02, VC-IR-0.050.01). Incidentally, the 24 h IR pathology in kidney was similar in both VC-IR and normal rat IR. But, the magnitude of dysfunction was higher with VC-IR due to pre-existing basal tissue alterations. We found severed deterioration in mitochondrial quantity and quality supported by low bioenergetic function in both VC basal tissue and IR challenged sample. However, post 7 days of IR, unlike normal rat IR, VC rat IR did not improve CrCl and corresponding mitochondrial damage in terms of quantity and its function were observed. Based on the above findings, we conclude that IR in VC rat adversely affect the post-surgical recovery, mainly due to the ineffective renal mitochondrial functional restoration from the surgery.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 3","pages":"219-232"},"PeriodicalIF":3.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10225449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<ArticleTitle xmlns:ns0=\"http://www.w3.org/1998/Math/MathML\">Disturbances in system dynamics of <ns0:math>\u0000 <ns0:mi>C</ns0:mi>\u0000 <ns0:msup>\u0000 <ns0:mi>a</ns0:mi>\u0000 <ns0:mrow class=\"MJX-TeXAtom-ORD\">\u0000 <ns0:mn>2</ns0:mn>\u0000 <ns0:mo>+</ns0:mo>\u0000 </ns0:mrow>\u0000 </ns0:msup>\u0000</ns0:math> and <ns0:math>\u0000 <ns0:mi>I</ns0:mi>\u0000 <ns0:msub>\u0000 <ns0:mi>P</ns0:mi>\u0000 <ns0:mn>3</ns0:mn>\u0000 </ns0:msub>\u0000</ns0:math> perturbing insulin secretion in a pancreatic <ns0:math>\u0000 <ns0:mi>β</ns0:mi>\u0000</ns0:math>-cell due to type-2 diabetes.","authors":"Vaishali, Neeru Adlakha","doi":"10.1007/s10863-023-09966-7","DOIUrl":"10.1007/s10863-023-09966-7","url":null,"abstract":"<p><p>The individual study of <math>\u0000 <mi>C</mi>\u0000 <msup>\u0000 <mi>a</mi>\u0000 <mrow>\u0000 <mn>2</mn>\u0000 <mo>+</mo>\u0000 </mrow>\u0000 </msup>\u0000</math> and <math>\u0000 <mi>I</mi>\u0000 <msub>\u0000 <mi>P</mi>\u0000 <mrow>\u0000 <mn>3</mn>\u0000 </mrow>\u0000 </msub>\u0000</math> dynamics respectively in a <math>\u0000 <mi>β</mi>\u0000</math>-cell has yielded limited information about the cell functions. But the systems biology approaches for such studies have received very little attention by the research workers in the past. In the present work, a system-dynamics model for the interdependent <math>\u0000 <mi>C</mi>\u0000 <msup>\u0000 <mi>a</mi>\u0000 <mrow>\u0000 <mn>2</mn>\u0000 <mo>+</mo>\u0000 </mrow>\u0000 </msup>\u0000</math> and <math>\u0000 <mi>I</mi>\u0000 <msub>\u0000 <mi>P</mi>\u0000 <mrow>\u0000 <mn>3</mn>\u0000 </mrow>\u0000 </msub>\u0000</math> signaling that controls insulin secretion in a <math>\u0000 <mi>β</mi>\u0000</math>-cell has been suggested. A two-way feedback system of <math>\u0000 <mi>C</mi>\u0000 <msup>\u0000 <mi>a</mi>\u0000 <mrow>\u0000 <mn>2</mn>\u0000 <mo>+</mo>\u0000 </mrow>\u0000 </msup>\u0000</math> and <math>\u0000 <mi>I</mi>\u0000 <msub>\u0000 <mi>P</mi>\u0000 <mrow>\u0000 <mn>3</mn>\u0000 </mrow>\u0000 </msub>\u0000</math> has been considered and one-way feedback between <math>\u0000 <mi>C</mi>\u0000 <msup>\u0000 <mi>a</mi>\u0000 <mrow>\u0000 <mn>2</mn>\u0000 <mo>+</mo>\u0000 </mrow>\u0000 </msup>\u0000</math> and insulin has been implemented in the model. The finite element method along with the Crank-Nicolson method have been applied for simulation. Numerical results have been used to analyze the impact of perturbations in <math>\u0000 <mi>C</mi>\u0000 <msup>\u0000 <mi>a</mi>\u0000 <mrow>\u0000 <mn>2</mn>\u0000 <mo>+</mo>\u0000 </mrow>\u0000 </msup>\u0000</math> and <math>\u0000 <mi>I</mi>\u0000 <msub>\u0000 <mi>P</mi>\u0000 <mrow>\u0000 <mn>3</mn>\u0000 </mrow>\u0000 </msub>\u0000</math> dynamics on insulin secretion for normal and Type-2 diabetic conditions. The results reveal that Type-2 diabetes comes from abnormalities in insulin secretion caused by the perturbation in buffers and pumps (SERCA and PMCA).</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 3","pages":"151-167"},"PeriodicalIF":2.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9910579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hypoglycemic and hypolipidemic effect of pentaamino acid fullerene C₆₀ derivative in rats with metabolic disorder.","authors":"Yuliya V Soldatova,&nbsp;David A Areshidze,&nbsp;Maria A Kozlova,&nbsp;Alexander V Zhilenkov,&nbsp;Olga A Kraevaya,&nbsp;Irina I Faingold,&nbsp;Pavel A Troshin,&nbsp;Raisa A Kotelnikova","doi":"10.1007/s10863-023-09961-y","DOIUrl":"https://doi.org/10.1007/s10863-023-09961-y","url":null,"abstract":"<p><p>Pentaamino acid fullerene C₆₀ derivative is a promising nanomaterial, which exhibited antihyperglycemic activity in high-fat diet and streptozotocin-induced diabetic rats. This study investigates the effect of pentaaminoacid C₆₀ derivative (PFD) in rats with metabolic disorders. Rats were assigned to 3 groups (of 10 rats each) as follows: Group 1 (normal control), group 2 included the protamine-sulfate-treated rats (the untreated group of animals with the model metabolic disorder); group 3 (Protamine sulfate + PFD) included the protamine-sulfate-treated model rats that received an intraperitoneal injection of PFD. Metabolic disorder in rats was initiated by protamine sulfate (PS) administration. The PS + PFD group was injected intraperitoneally with PFD solution (3 mg/kg). Protamine sulfate induces biochemical changes (hyperglycemia, hypercholesterolemia, and hypertriglyceridemia) in the blood and morphological lesions in rat liver and pancreas. The potassium salt of fullerenylpenta-N-dihydroxytyrosine in protamine sulfate-induced rats normalized blood glucose level and the serum lipid profile and improved hepatic function markers. Treatment with PFD restored pancreas islets and liver structure of protamine sulfate-induced rats compared to the untreated group. PFD is a promising compound for further study as a drug against metabolic disorders.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 2","pages":"93-101"},"PeriodicalIF":3.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9550577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phosphoenolpyruvate induces endothelial dysfunction and cell senescence through stimulation of metabolic reprogramming.","authors":"Tong An,&nbsp;Xiaoyi Zhang,&nbsp;Xin Gao,&nbsp;Xiyue Zhang,&nbsp;Tao Shen,&nbsp;Hongxia Li,&nbsp;Lin Dou,&nbsp;Xiuqing Huang,&nbsp;Yong Man,&nbsp;Guoping Li,&nbsp;Weiqing Tang,&nbsp;Jian Li","doi":"10.1007/s10863-023-09965-8","DOIUrl":"https://doi.org/10.1007/s10863-023-09965-8","url":null,"abstract":"<p><p>Endothelial dysfunction is a key early link in the pathogenesis of atherosclerosis, and the accumulation of senescent vascular endothelial cells causes endothelial dysfunction. Phosphoenolpyruvate (PEP), which is a high-energy glycolytic intermediate, protects against ischemia-reperfusion injury in isolated rat lung, heart, and liver tissue by quickly providing ATP. However, it was reported that serum PEP concentrations are 13-fold higher in healthy elderly compare to the young. Unlike that of other cell types, the energy required for the physiological function of endothelial cells is mainly derived from glycolysis. Recently, it is unclear whether circulating accumulation of PEP affects endothelial cell function. In this study, we found for the first time that 50-250 μM of PEP significantly promoted THP-1 monocyte adhesion to human umbilical vein endothelial cells (HUVECs) through increased expression of vascular endothelial adhesion factor 1 (VCAM1) and intercellular adhesion factor 1 (ICAM1) in HUVECs. Meanwhile, 50-250 μM of PEP decreased the expression of endothelial nitric oxide synthase (eNOS) and cellular level of nitric oxide (NO) in HUVECs. Moreover, PEP increased levels of ROS, enhanced the numbers of SA-β-Gal-positive cells and upregulated the expression of cell cycle inhibitors such as p21, p16 and the phosphorylation level of p53 on Ser15, and the expression of proinflammatory factors including TNF-α, IL-1β, IL-6, IL-8, IL-18 and MCP-1 in HUVECs. Furthermore, PEP increased both oxygen consumption rate (OCR) and glycolysis rate, and was accompanied by reduced NAD⁺/NADH ratios and enhanced phosphorylation levels of AMPKα (Thr172), p38 MAPK (T180/Y182) and NF-κB p65 (Ser536) in HUVECs. Notably, PEP had no significant effect on hepG2 cells. In conclusion, these results demonstrated that PEP induced dysfunction and senescence in vascular endothelial cells through stimulation of metabolic reprogramming.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 2","pages":"103-114"},"PeriodicalIF":3.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9551061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shrimp Glucose-6-phosphatase 2 (G6Pase 2): a second isoform of G6Pase in the Pacific white shrimp and regulation of G6Pase 1 and 2 isoforms via HIF-1 during hypoxia and reoxygenation in juveniles.","authors":"Laura E Hernández-Aguirre,&nbsp;Alma B Peregrino-Uriarte,&nbsp;Jorge L Duarte-Gutiérrez,&nbsp;Lilia Leyva-Carrillo,&nbsp;Josafat M Ezquerra-Brauer,&nbsp;Elisa M Valenzuela-Soto,&nbsp;Gloria Yepiz-Plascencia","doi":"10.1007/s10863-023-09960-z","DOIUrl":"https://doi.org/10.1007/s10863-023-09960-z","url":null,"abstract":"<p><p>Animals suffer hypoxia when their oxygen consumption is larger than the oxygen available. Hypoxia affects the white shrimp Penaeus (Litopenaeus) vannamei, both in their natural habitat and in cultivation farms. Shrimp regulates some enzymes that participate in energy production pathways as a strategy to survive during hypoxia. Glucose-6-phosphatase (G6Pase) is key to maintain blood glucose homeostasis through gluconeogenesis and glycogenolysis. We previously reported a shrimp G6Pase gene (G6Pase1) and in this work, we report a second isoform that we named G6Pase2. The expression of the two isoforms was evaluated in oxygen limited conditions and during silencing of the transcription factor HIF-1. High G6Pase activity was detected in hepatopancreas followed by muscle and gills under good oxygen and feeding conditions. Gene expression of both isoforms was analyzed in normoxia, hypoxia and reoxygenation in hepatopancreas and gills, and in HIF-1-silenced shrimp. In fed shrimp with normal dissolved oxygen (DO) (5.0 mg L^- 1 DO) the expression of G6Pase1 was detected in gills, but not in hepatopancreas or muscle, while G6Pase2 expression was undetectable in all three tissues. In hepatopancreas, G6Pase1 is induced at 3 and 48 h of hypoxia, while G6Pase2 is down-regulated in the same time points but in reoxygenation, both due to the knock-down of HIF-1. In gills, only G6Pase1 was detected, and was induced by the silencing of HIF-1 only after 3 h of reoxygenation. Therefore, the expression of the two isoforms appears to be regulated by HIF-1 at transcriptional level in response to oxygen deprivation and subsequent recovery of oxygen levels.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 2","pages":"137-150"},"PeriodicalIF":3.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9921257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antioxidant effects of silver nanoparticles obtained by green synthesis from the aqueous extract of Eryngium carlinae on the brain mitochondria of streptozotocin-induced diabetic rats.","authors":"Jenaro Lemus-de la Cruz,&nbsp;Mitchell Trejo-Hurtado,&nbsp;Cinthia Landa-Moreno,&nbsp;Donovan Peña-Montes,&nbsp;José Luis Landeros-Páramo,&nbsp;Christian Cortés-Rojo,&nbsp;Rocío Montoya-Pérez,&nbsp;Gerardo Rosas,&nbsp;Alfredo Saavedra-Molina","doi":"10.1007/s10863-023-09963-w","DOIUrl":"https://doi.org/10.1007/s10863-023-09963-w","url":null,"abstract":"<p><p>Diabetes mellitus is a metabolic disorder characterized by chronic hyperglycemia that affects practically all tissues and organs, being the brain one of most susceptible, due to overproduction of reactive oxygen species induced by diabetes. Eryngium carlinae is a plant used in traditional Mexican medicine to treat diabetes, which has already been experimentally shown have hypoglycemic, antioxidant and hypolipidemic properties. The green synthesis of nanoparticles is a technique that combines plant extracts with metallic nanoparticles, so that the nanoparticles reduce the absorption and distribution time of drugs or compounds, increasing their effectiveness. In this work, the antioxidant effects and mitochondrial function in the brain were evaluated, as well as the hypoglycemic and hypolipidemic effect in serum of both the aqueous extract of the aerial part of E. carlinae, as well as its combination with silver nanoparticles of green synthesis. Administration with both, extract and the combination significantly decreased the production of reactive oxygen species, lipid peroxidation, and restored the activity of superoxide dismutase 2, glutathione peroxidase, and electron transport chain complexes in brain, while that the extract-nanoparticle combination decreased blood glucose and triglyceride levels. The results obtained suggest that both treatments have oxidative activity and restore mitochondrial function in the brain of diabetic rats.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 2","pages":"123-135"},"PeriodicalIF":3.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9550273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"L-ascorbic acid could ameliorate the damage of myocardial microvascular endothelial cell caused by hypoxia-reoxygenation via targeting HMGB1.","authors":"Zhanshuai Zhang,&nbsp;Shaoqiang Qin,&nbsp;Yaling Wang,&nbsp;Huiqing Liang,&nbsp;Rui Wang,&nbsp;Fangjiang Li","doi":"10.1007/s10863-023-09962-x","DOIUrl":"https://doi.org/10.1007/s10863-023-09962-x","url":null,"abstract":"<p><p>In this study, we intend to explore the potential function of l-ascorbic acid in hypoxia-reoxygenation (H/R)-induced damage of CMECs and its related molecular mechanism. With different concentrations of l-ascorbic acid treatment, the proliferation, migration, inflammation and autophagy of cardiac microvascular endothelial cells (CMECs) were determined by several biological experiments. Si-HMGB1 transfection was used to reduce HMGB1 expression and to detect the function of HMGB1 in H/R-induced damage of CMECs. Under H/R condition, the proliferation and migration abilities of CMECs were reduced, and the inflammation and autophagy of CMECs were increased. Whereas, after l-ascorbic acid treatment, the reduction in the proliferation and migration of CMECs, as well as the increase in the inflammation and autophagy of CMECs induced by H/R were reversely altered. HMGB1 was confirmed as a specific target of l-ascorbic acid, and si-HMGB1 treatment strengthened the beneficial effect of l-ascorbic acid on H/R-induced damage of CMECs, followed by further reduction in the proliferation and migration abilities of CMECs, as well as the increase in the inflammation and autophagy of CMECs. Few studies have reported the function of l-ascorbic acid in myocardial ischemia on CMECs, but our experimental data showed that l-ascorbic acid treatment could ameliorate the H/R-induced damage of CMECs by regulating HMGB1 expression.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 2","pages":"115-122"},"PeriodicalIF":3.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9603311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diazoxide improves muscle function in association with improved dyslipidemia and decreased muscle oxidative stress in streptozotocin-induced diabetic rats.","authors":"Manuel Alejandro Vargas-Vargas,&nbsp;Alfredo Saavedra-Molina,&nbsp;Mariana Gómez-Barroso,&nbsp;Donovan Peña-Montes,&nbsp;Christian Cortés-Rojo,&nbsp;Alain R Rodríguez-Orozco,&nbsp;Montoya-Pérez Rocío","doi":"10.1007/s10863-023-09958-7","DOIUrl":"https://doi.org/10.1007/s10863-023-09958-7","url":null,"abstract":"<p><strong>Aim/introduction: </strong>Diabetes Mellitus is a chronic degenerative disease, and its main biochemical characteristic is hyperglycemia due to impaired insulin secretion, resistance to peripheral actions of insulin, or both. Hyperglycemia causes dyslipidemia and stimulates oxidative damage, leading to the main symptoms, such as fatigue and culminates in diabetic complications. Previous studies have shown that ATP-sensitive potassium channels counteract muscle fatigue and metabolic stress in healthy mouse models. To determine the effect of diazoxide on muscle strength development during diabetes, we tested the effect of diazoxide in streptozotocin-diabetic rats in muscle function, lipid profile and oxidative stress biomarkers.</p><p><strong>Materials and methods: </strong>Wistar rats were divided into 4 groups of six animals each: (1) Control group, (2) diabetes group, (3) Control group + diazoxide, and (4) Diabetic + diazoxide (DB + DZX). 4 weeks after rats were sacrificed, soleus and extensor digitorum longus muscles (EDL) were extracted to prepare homogenates and serum was obtained for biochemical measurements. Oxidative damage was evaluated by the thiobarbituric acid method and the fluorescent for reactive oxygen species (ROS) probe 2,4-H₂DCFDA, respectively.</p><p><strong>Results: </strong>Diabetic rats with diazoxide administration showed an increase in the development of muscle strength in both muscles; in turn, the onset of fatigue was longer compared to the group of diabetic rats without treatment. Regarding the lipid profile, diazoxide decreased total cholesterol levels in the group of diabetic rats treated with diazoxide (x̅46.2 mg/dL) compared to the untreated diabetic group (x̅=104.4 mg/dL); secondly, diazoxide decreased triglyceride concentrations (x̅=105.3 mg/dL) compared to the untreated diabetic rats (x̅=412.2 mg/dL) as well as the levels of very low-density lipoproteins (x̅=20.4 mg/dL vs. x̅=82.44 mg/dL). Regarding the various markers of oxidative stress, the diabetic group treated with diazoxide was able to reduce the concentrations of TBARS and total reactive oxygen species as well as preserve the concentrations of reduced glutathione.</p><p><strong>Conclusion: </strong>Diazoxide administration in diabetic rats increases muscle strength development in EDL and soleus muscle, decreases fatigue, reduces cholesterol and triglyceride concentrations and improves oxidative stress parameters such as TBARS, ROS, and glutathione status.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":"55 1","pages":"71-78"},"PeriodicalIF":3.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9250324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}