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1.
Cell Biochem Funct ; 42(4): e4037, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38736204

RESUMEN

Diabetes mellitus is associated with secondary complications such as diabetic retinopathy (DR), nephropathy (DN), and cardiomyopathy (DCM), all of which significantly impact patient health. Intercellular adhesion molecule-1 (ICAM-1) has been implicated in inflammatory responses and endothelial dysfunction, both crucial in the pathogenesis of these complications. The goal of this review is to investigate at potential therapy methods that target ICAM-1 pathways and to better understand the multifaceted role of ICAM-1 in secondary diabetic problems. A meticulous analysis of scholarly literature published globally was conducted to examine ICAM-1involvement in inflammatory processes, endothelial dysfunction, and oxidative stress related to diabetes and its complications. Elevated ICAM-1 levels are strongly associated with augmented leukocyte adhesion, compromised microvascular function, and heightened oxidative stress in diabetes. These pathways contribute significantly to DR, DN, and DCM pathogenesis, highlighting ICAM-1 as a key player in their progression. Understanding ICAM-1 role in secondary diabetic complications offers insights into novel therapeutic strategies. Targeting ICAM-1 pathways may mitigate inflammation, improve endothelial function, and ultimately attenuate diabetic complications, thereby enhancing patient health outcomes. Continued research in this area is crucial for developing effective targeted therapies.


Asunto(s)
Molécula 1 de Adhesión Intercelular , Humanos , Molécula 1 de Adhesión Intercelular/metabolismo , Complicaciones de la Diabetes/metabolismo , Estrés Oxidativo , Animales , Nefropatías Diabéticas/metabolismo , Nefropatías Diabéticas/patología , Inflamación/metabolismo , Retinopatía Diabética/metabolismo , Retinopatía Diabética/patología , Retinopatía Diabética/etiología
2.
Can J Physiol Pharmacol ; 102(5): 305-317, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38334084

RESUMEN

Mostly, cardiovascular diseases are blamed for casualties in rheumatoid arthritis (RA) patients. Customarily, dyslipidemia is probably the most prevalent underlying cause of untimely demise in people suffering from RA as it hastens the expansion of atherosclerosis. The engagement of inflammatory cytokines like tumor necrosis factor-α (TNF-α), interleukin-1 (IL-1), interleukin-6 (IL-6), etc., is crucial in the progression and proliferation of both RA and abnormal lipid parameters. Thus, lipid abnormalities should be monitored frequently in patients with both primary and advanced RA stages. An advanced lipid profile examination, i.e., direct role of apolipoproteins associated with various lipid molecules is a more dependable approach for better understanding of the disease and selecting suitable therapeutic targets. Therefore, studying their apolipoproteins is more relevant than assessing RA patients' altered lipid profile levels. Among the various apolipoprotein classes, Apo A1 and Apo B are primarily being focused. In addition, it also addresses how calculating Apo B:Apo A1 ratio can aid in analyzing the disease's risk. The marketed therapies available to control lipid abnormalities are associated with many other risk factors. Hence, directly targeting Apo A1 and Apo B would provide a better and safer option.


Asunto(s)
Apolipoproteínas , Artritis Reumatoide , Enfermedades Cardiovasculares , Factores de Riesgo de Enfermedad Cardiaca , Humanos , Artritis Reumatoide/metabolismo , Artritis Reumatoide/sangre , Enfermedades Cardiovasculares/prevención & control , Enfermedades Cardiovasculares/etiología , Apolipoproteínas/sangre , Animales , Apolipoproteína A-I , Apolipoproteínas B/sangre , Apolipoproteínas B/metabolismo , Dislipidemias/tratamiento farmacológico , Dislipidemias/sangre , Dislipidemias/metabolismo
3.
Drug Dev Res ; 85(4): e22212, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38798193

RESUMEN

AKT is one of the overexpressed targets in nonsmall cell lung cancer (NSCLC) and plays an important role in its progression and offers an attractive target for the therapy. The PI3K/AKT/mTOR pathway is upregulated in NSCLC. Acridone is an important heterocycle compound which treats cancer through various mechanisms including AKT as a target. In the present work, the study was designed to evaluate the safety profile of three acridone derivatives (AC-2, AC-7, and AC-26) by acute and repeated dose oral toxicity. In addition to this, we also checked the pAKT overexpression and its control by these derivatives in tumor xenograft model. The results from acute and repeated dose toxicity showed these compounds to be highly safe and free from any toxicity, mortality, or significant alteration in body weight, food, and water intake in the rats. In the repeated dose toxicity, compounds showed negligible variations in a few hematological parameters at 400 mg/kg. The histopathology, biochemical, and urine parameters remained unchanged. The xenograft model study demonstrated AC-2 to be inhibiting HOP-62 induced tumor via reduction in p-AKT1 (Ser473) expression significantly. In immunofluorescence staining AC-2 treated tissue section showed 2.5 fold reduction in the expression of p-AKT1 (Ser473). Histopathology studies showed the destruction of tumor cells with increased necrosis after treatment. The study concluded that AC-2 causes cell necrosis in tumor cells via blocking the p-AKT1 expression. The findings may provide a strong basis for further clinical applications of acridone derivatives in NSCLC.


Asunto(s)
Acridonas , Antineoplásicos , Neoplasias Pulmonares , Ensayos Antitumor por Modelo de Xenoinjerto , Animales , Acridonas/farmacología , Neoplasias Pulmonares/tratamiento farmacológico , Humanos , Masculino , Antineoplásicos/farmacología , Antineoplásicos/uso terapéutico , Ratones , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Proteínas Proto-Oncogénicas c-akt/metabolismo , Ratas , Ratones Desnudos , Línea Celular Tumoral , Ratas Sprague-Dawley , Femenino
4.
Saudi Pharm J ; 31(7): 1274-1293, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37304359

RESUMEN

Postpartum depression (PPD) is a challenging psychological disorder faced by 10-30% of mothers across the globe. In India, it occurs among 22% of mothers. Its aetiology and pathophysiology aren't fully understood as of today but multiple theories on the interplay of hormones, neurotransmitters, genetics, epigenetics, nutrients, socio-environmental factors, etc. exist. Nutrients are not only essential for the synthesis of neurotransmitters, but they may also indirectly influence genomic pathways that methylate DNA, and there is evidence for molecular associations between nutritional quality and psychological well-being. Increased behavioural disorders have been attributed to macro- and micronutrient deficiencies, and dietary supplementation has been effective in treating several neuropsychiatric illnesses. Nutritional deficiencies occur frequently in women, especially during pregnancy and breastfeeding. The aim of this study was to perform a comprehensive literature review of evidence-based research in order to identify, gather and summarize existing knowledge on PPD's aetiology, pathophysiology, and the role of nutrients in its prevention as well as management. The possible mechanisms of action of nutrients are also presented here. Study findings show that the risk of depression increases when omega-3 fatty acid levels are low. Both fish oil and folic acid supplements have been used to effectively treat depression. Antidepressant efficacy is lowered by folate insufficiency. Folate, vitamin B12, iron, etc. deficiencies are more prevalent in depressed people than in non-depressed people. Serum cholesterol levels and plasma tryptophan levels are found to be inversely correlated with PPD. Serum vitamin D levels were associated inversely with perinatal depression. These findings highlight the importance of adequate nutrition in the antepartum period. Given that nutritional therapies can be affordable, safe, simple to use, and are typically well-accepted by patients, more focus should be placed on dietary variables in PPD.

5.
Can J Physiol Pharmacol ; 100(3): 272-281, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35119950

RESUMEN

The activation of Nod-like receptor proteins (NLRP3) containing the pyrin domain inflammasome is a hallmark of the pathogenesis of metabolic disorders. Inhibition of the NLRP3 inflammasome by phytoconstituents has been attempted as a strategy to mitigate these disorders. Therefore, the present study aimed to evaluate the efficacy of an NLRP3 inflammasome inhibitor, parthenolide (PN; 5 mg/kg i.p.) against inflammation and insulin resistance in high-fat diet (HFD) - obese mice. Treatment with PN and pioglitazone (PIO; 30 mg/kg p.o.) attenuated lipopolysaccharide (LPS; 1 ng/ml) - induced elevation of tumor necrosis factor-α and interleukin-1ß in mouse peritoneal macrophages in a dose-dependent manner. Sixty days of PN and PIO treatment marginally reduced obesity-induced insulin resistance in HFD-obese mice. PN treatment also decreased blood glucose from 14th to 60th day, supporting the hypothesis of simultaneous attenuation of inflammation and insulin resistance in obese mice. Thus, PN treatment was also evident with significant improvement in glucose tolerance and peripheral insulin resistance validated through the respective tolerance tests. Therefore, the present study suggests that PN, an NLRP3 inflammasome inhibitor, could be a possible therapeutic agent for attenuating obesity-induced insulin resistance.


Asunto(s)
Dieta Alta en Grasa/efectos adversos , Resistencia a la Insulina , Proteína con Dominio Pirina 3 de la Familia NLR/antagonistas & inhibidores , Obesidad/tratamiento farmacológico , Obesidad/fisiopatología , Sesquiterpenos/farmacología , Animales , Glucemia/metabolismo , Relación Dosis-Respuesta a Droga , Interleucina-1beta/metabolismo , Macrófagos Peritoneales/metabolismo , Masculino , Ratones Endogámicos C57BL , Obesidad/etiología , Pioglitazona/farmacología , Pioglitazona/uso terapéutico , Sesquiterpenos/uso terapéutico , Factor de Necrosis Tumoral alfa/metabolismo
6.
Can J Physiol Pharmacol ; 100(3): 210-219, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-34910610

RESUMEN

Our current investigation comprises the synthesis and pharmacological impact of bromelain copper nanoparticles (BrCuNP) against diabetes mellitus (DM) and associated ischemia/reperfusion (I/R) - induced myocardial infarction. Bromelain is a proteolytic enzyme obtained from Ananas comosus L. Merr., which has blood platelet aggregation inhibiting and arterial thrombolytic potential. Moreover, copper is well-known to facilitate glucose metabolism and strengthen cardiac muscle and antioxidant activity; although, chronic or long-term exposure to high doses of copper may lead to copperiedus. To restrict these potential hazards, we synthesized herbal nano-formulation which convincingly indicated the improved primordial therapeutic potential of copper by reformulating the treatment carrier with bromelain, resulting in facile synthesis of BrCuNP. DM was induced by administration of double cycle repetitive dose of low dose streptozotocin (20 mg/kg, i.p.) in high-fat diet- fed animals. DM and associated myocardial I/R injury were estimated by increased serum levels of total cholesterol, low-density lipoprotein, very low-density lipoprotein, lactate dehydrogenase, creatine kinase myocardial band, cardiac troponin, thiobarbituric acid reactive substances, tumor necrosis factor α, interleukin 6, and reduced serum level of high-density lipoprotein and nitrite/nitrate concentration. However, treatment with BrCuNP ameliorates various serum biomarkers by approving cardioprotective potential against DM- and I/R-associated injury. Furthermore, upturn of histopathological changes were observed in cardiac tissue of BrCuNP-treated rats in comparison to disease models.


Asunto(s)
Bromelaínas/síntesis química , Bromelaínas/uso terapéutico , Cobre/química , Cobre/uso terapéutico , Complicaciones de la Diabetes/complicaciones , Nanopartículas del Metal/química , Nanopartículas del Metal/uso terapéutico , Infarto del Miocardio/tratamiento farmacológico , Infarto del Miocardio/etiología , Daño por Reperfusión Miocárdica/complicaciones , Animales , Bromelaínas/farmacología , Cobre/farmacología , Modelos Animales de Enfermedad , Femenino , Ratas Wistar
7.
Heart Fail Rev ; 26(6): 1495-1504, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-32314086

RESUMEN

The finding of "glycogen synthase kinase-3" (GSK-3) was initially identified as a protein kinase that phosphorylate and inhibited glycogen synthase. However, it was soon discovered that GSK-3 also has significant impact in regulation of truly astonishing number of critical intracellular signaling pathways ranging from regulation of cell growth, neurology, heart failure, diabetes, aging, inflammation, and cancer. Recent studies have validated the feasibility of targeting GSK-3 for its vital therapeutic potential to maintain normal myocardial homeostasis, conversely, its loss is incompatible with life as it can abrupt cell cycle and endorse fatal cardiomyopathy. The current study focuses on its expanding therapeutic action in myocardial tissue, concentrating primarily on its role in diabetes-associated cardiac complication, apoptosis and metabolism, heart failure, cardiac hypertrophy, and myocardial infarction. The current report also includes the finding of our previous investigation that has shown the impact of GSK-3ß inhibitor against diabetes-associated myocardial injury and experimentally induced myocardial infarction. We have also discussed some recent identified GSK-3ß inhibitors for their cardio-protective potential. The crosstalk of various underlying mechanisms that highlight the significant role of GSK-3ß in myocardial pathophysiology have been discussed in the present report. For these literatures, we will rely profoundly on our previous studies and those of others to reconcile some of the deceptive contradictions in the literature.


Asunto(s)
Glucógeno Sintasa Quinasa 3 , Infarto del Miocardio , Cardiomegalia , Glucógeno Sintasa Quinasa 3 beta , Humanos , Miocardio
8.
Drug Dev Res ; 80(6): 758-777, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-31199023

RESUMEN

System xc- (Sxc- ), a cystine-glutamate antiporter, is established as an interesting target for the treatment of several pathologies including epileptic seizures, glioma, neurodegenerative diseases, and multiple sclerosis. Erastin, sorafenib, and sulfasalazine (SSZ) are a few of the established inhibitors of Sxc- . However, its pharmacological inhibition with novel and potent agents is still very much required due to potential issues, for example, potency, bioavailability, and blood-brain barrier (BBB) permeability, with the current lead molecules such as SSZ. Therefore, in this study, we report the synthesis and structure-activity relationships (SAR) of SSZ derivatives along with molecular docking and dynamics simulations using the developed homology model of xCT chain of Sxc- antiporter. The generated homology model attempted to address the limitations of previously reported comparative protein models, thereby increasing the confidence in the computational modeling studies. The main objective of the present study was to derive a suitable lead structure from SSZ eliminating its potential issues for the treatment of glioblastoma multiforme (GBM), a deadly and malignant grade IV astrocytoma. The designed compounds with favorable Sxc- inhibitory activity following in vitro Sxc- inhibition studies, showed moderately potent cytotoxicity in patient-derived human glioblastoma cells, thereby generating potential interest in these compounds. The xCT-ligand model can be further optimized in search of potent lead molecules for novel drug discovery and development studies.


Asunto(s)
Sistema de Transporte de Aminoácidos y+/antagonistas & inhibidores , Antiportadores/antagonistas & inhibidores , Sulfasalazina/análogos & derivados , Sistema de Transporte de Aminoácidos y+/metabolismo , Animales , Antiportadores/metabolismo , Sitios de Unión , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Humanos , Ligandos , Simulación del Acoplamiento Molecular , Ratas , Relación Estructura-Actividad , Sulfasalazina/química , Sulfasalazina/farmacocinética , Sulfasalazina/farmacología
9.
J Surg Res ; 213: 90-99, 2017 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-28601338

RESUMEN

BACKGROUND: Presence of circulating endothelial cells (CECs) in systemic circulation may be an indicator of endothelial damage and/or denudation, and the body's response to repair and revascularization. Thus, we hypothesized that aggregated platelets (AgPlts) can disrupt/denude the endothelium and contribute to the presence of CEC and EC-derived particles (ECDP). METHODS: Endothelial cells were grown in glass tubes and tagged with/without 0.5 µm fluorescent beads. These glass tubes were connected to a mini-pump variable-flow system to study the effect of circulating AgPlts on the endothelium. ECs in glass tube were exposed to medium alone, nonaggregated platelets (NAgPlts), AgPlts, and 90 micron polystyrene beads at a flow rate of 20 mL/min for various intervals. Collected effluents were cultured for 72 h to analyze the growth potential of dislodged but intact ECs. Endothelial damage was assessed by real time polymerase chain reaction (RT-PCR) for inflammatory genes and Western blot analysis for von Willebrand factor. RESULTS AND CONCLUSION: No ECs and ECDP were observed in effluents collected after injecting medium alone and NAgPlts, whereas AgPlts and Polybeads drastically dislodged ECs, releasing ECs and ECDP in effluents as the time increased. Effluents collected when endothelial cell damage was seen showed increased presence of von Willebrand factor as compared to control effluents. Furthermore, we analyzed the presence of ECs and ECDPs in heart failure subjects, as well as animal plasma samples. Our study demonstrates that circulating AgPlts denude the endothelium and release ECs and ECDP. Direct mechanical disruption and shear stress caused by circulating AgPlts could be the underlying mechanism of the observed endothelium damage.


Asunto(s)
Plaquetas/fisiología , Células Endoteliales/fisiología , Células Endoteliales de la Vena Umbilical Humana/fisiología , Agregación Plaquetaria/fisiología , Animales , Biomarcadores/metabolismo , Western Blotting , Células Cultivadas , Ensayo de Inmunoadsorción Enzimática , Humanos , Reacción en Cadena en Tiempo Real de la Polimerasa , Ovinos
10.
Mol Membr Biol ; 32(4): 89-116, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26508554

RESUMEN

System [Formula: see text] is an antiporter belonging to the hetero(di)meric amino acid transporter family. It is located on astrocytes as well as on blood-brain barrier within the CNS. It plays a pivotal role in free radical neutralization as well as neuronal signalling by regulating the glutathione production which occurs via the exchange of intracellular glutamate with extracellular cystine at 1:1 molar ratio. Understandably, it is a vital component responsible for the maintenance of neuronal homeostasis (e.g. redox state). Hence, it could be postulated that any perturbation in system [Formula: see text] function may contribute, directly or indirectly, to the pathophysiology of a variety of CNS disorders like Alzheimer's disease, schizophrenia, drug addiction, depression, multiple sclerosis, hypoglycemic neuronal cell death, glioma, and excitotoxicity, making system [Formula: see text] a promising target for treating CNS disorders. In recent times, recognizing the potential of this target, variety of inhibitors has been synthesized by modifying commercially available potent inhibitors including sulfasalazine, erastin, and sorafenib. Although, they have demonstrated efficacy, the in-depth data is still lacking to warrant their use for the treatment of aforementioned CNS disorders. In this review, we discuss the in-depth role of system [Formula: see text] transporter in maintaining normal physiology as well as in the pathophysiology of CNS diseases. Additionally, we have also listed some of the potent inhibitors of system [Formula: see text]. In conclusion, the critical role of system [Formula: see text] in multiple CNS disorders and advanced research on its inhibitors have promising future prospects for better management of the CNS ailments.


Asunto(s)
Sistema de Transporte de Aminoácidos y+/genética , Sistema de Transporte de Aminoácidos y+/metabolismo , Enfermedades del Sistema Nervioso Central/genética , Enfermedades del Sistema Nervioso Central/metabolismo , Sistema de Transporte de Aminoácidos y+/antagonistas & inhibidores , Sistema de Transporte de Aminoácidos y+/química , Animales , Enfermedades del Sistema Nervioso Central/tratamiento farmacológico , Regulación de la Expresión Génica , Humanos , Modelos Moleculares , Estructura Molecular , Transporte de Proteínas , Relación Estructura-Actividad
11.
Phytother Res ; 30(7): 1146-55, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27091200

RESUMEN

The present study investigates the cardioprotective activity of the Macrotyloma uniflorum seed extract (MUSE) and its phenolic acids (p-coumaric acid and ferulic acid) in isoproterenol (ISO)-induced myocardial infarction in rats. The previously mentioned phenolic acids were isolated and quantified from MUSE by HPLC. Pretreatment of gemfibrozil (reference standard), MUSE (250 and 500 mg/kg) and the phenolic acids for 30 days to rats treated with ISO (85 mg/kg) on the last 2 days resulted in a significant attenuation of the ISO-elevated levels of serum marker enzymes (aspartate aminotransferase, lactate dehydrogenase and creatine phosphokinase MB), total cholesterol, triglycerides, uric acid, C-reactive protein and malondialdehyde and a restoration of the levels of the ISO-depleted marker enzymes, reduced glutathione and the antioxidant enzymes-superoxide dismutase, catalase, glutathione peroxidase and glutathione reductase in heart. Restoration of the ISO-altered electrocardiogram pattern and haemodynamic parameters (left ventricular end diastolic pressure, heart rate, systolic, diastolic and mean arterial pressure) was also brought about by treatment with MUSE and the phenolic acids. It may be concluded that MUSE treatment to ISO-challenged rats exhibits a significant cardioprotective effect probably because of the potent antioxidant activity of its phenolic acids that salvage the myocardium from the deleterious effects of ISO. Copyright © 2016 John Wiley & Sons, Ltd.


Asunto(s)
Fabaceae/química , Hidroxibenzoatos/administración & dosificación , Isoproterenol/farmacología , Infarto del Miocardio/prevención & control , Animales , Antioxidantes/farmacología , Corazón/efectos de los fármacos , Masculino , Extractos Vegetales/farmacología , Sustancias Protectoras/farmacología , Ratas , Ratas Wistar
13.
Indian J Clin Biochem ; 29(3): 345-50, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24966484

RESUMEN

Identification of reliable biomarkers for detection and staging of cancer and monitoring the outcome of anticancer therapy has been considered to be of high importance. We aimed to estimate the levels of serum glycoproteins, protein bound-hexose, protein bound hexosamine, protein bound fucose, protein bound sialic acid and protein bound carbohydrate in 32 ovarian cancer patients and compared them with the levels that found in 25 normal subjects. As compared to the normal subjects, all the four fractions of glycoproteins level were significantly elevated in ovarian cancer patients (p < 0.05). Chemotherapy in these patients significantly decreased the levels of serum glycoproteins (p < 0.05). Thus, high levels of serum glycoproteins in ovarian cancer patients could be due to abnormal protein glycosylation indicating malignant transformation of the cells.

14.
Int J Biol Macromol ; 254(Pt 2): 127735, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37923047

RESUMEN

Gelatin-based hydrogels have been widely used for wound healing applications. However, increase in ligand density and reduction in pore size with increasing gelatin concentration may delay wound healing by limiting cell infiltration. In this study, we address this shortcoming by combining gelatin with gellan-which is super hydrophilic and non-adhesive to cells. We show that UV crosslinked hybrid gels composed of methacrylated gelatin (GelMA) and methacrylated gellan gum (mGG), possess considerably larger pores and improved mechanical properties compared to GelMA gels. Reduced spreading and reduced formation of focal adhesions on hybrid gels combined with lower contractility and faster detachment upon trypsin-induced de-adhesion suggests that hybrid gels are less adhesive than GelMA gels. Gradual release of fibroblast growth factor (FGF) and silver nanoparticles (AgNPs) incorporated in hybrid gels not only boosts cell migration, but also confers anti-bacterial activity against gram-positive and gram-negative bacteria at concentrations nontoxic to cells. Full thickness wound healing in Wistar rats revealed increased granulation tissue formation in hybrid gels, fastest epithelialization and highest collagen deposition in rats treated with FGF entrapped hybrid gels. Together, our results demonstrate how adhesive tuning and incorporation of bioactive factors can be synergistically combined for achieving complete wound healing.


Asunto(s)
Gelatina , Nanopartículas del Metal , Ratas , Animales , Gelatina/farmacología , Antibacterianos/farmacología , Adhesivos/farmacología , Ratas Wistar , Bacterias Gramnegativas , Bacterias Grampositivas , Plata/farmacología , Cicatrización de Heridas , Hidrogeles/farmacología
15.
Stem Cells Int ; 2024: 9077926, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38213742

RESUMEN

Angiogenesis plays a significant role in the human body, from wound healing to tumor progression. "Angiogenic switch" indicates a time-restricted event where the imbalance between pro- and antiangiogenic factors results in the transition from prevascular hyperplasia to outgrowing vascularized tumor, which eventually leads to the malignant cancer progression. In the last decade, molecular players, i.e., angiogenic biomarkers and underlying molecular pathways involved in tumorigenesis, have been intensely investigated. Disrupting the initiation and halting the progression of angiogenesis by targeting these biomarkers and molecular pathways has been considered as a potential treatment approach for tumor angiogenesis. This review discusses the currently known biomarkers and available antiangiogenic therapies in cancer, i.e., monoclonal antibodies, aptamers, small molecular inhibitors, miRNAs, siRNAs, angiostatin, endostatin, and melatonin analogues, either approved by the U.S. Food and Drug Administration or currently under clinical and preclinical investigations.

16.
Pathol Res Pract ; 254: 155131, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38309018

RESUMEN

Diabetes has been a significant healthcare problem worldwide for a considerable period. The primary objective of diabetic treatment plans is to control the symptoms associated with the pathology. To effectively combat diabetes, it is crucial to comprehend the disease's etiology, essential factors, and the relevant processes involving ß-cells. The development of the pancreas, maturation, and maintenance of ß-cells, and their role in regular insulin function are all regulated by PDX1. Therefore, understanding the regulation of PDX1 and its interactions with signaling pathways involved in ß-cell differentiation and proliferation are crucial elements of alternative diabetes treatment strategies. The present review aims to explore the protective role of PDX1 in ß-cell proliferation through signaling pathways. The main keywords chosen for this review include "PDX1 for ß-cell mass," "ß-cell proliferation," "ß-cell restoration via PDX1," and "mechanism of PDX1 in ß-cells." A comprehensive literature search was conducted using various internet search engines, such as PubMed, Science Direct, and other publication databases. We summarize several approaches to generating ß-cells from alternative cell sources, employing PDX1 under various modified growth conditions and different transcriptional factors. Our analysis highlights the unique potential of PDX1 as a promising target in molecular and cell-based therapies for diabetes.


Asunto(s)
Diabetes Mellitus , Proteínas de Homeodominio , Células Secretoras de Insulina , Transactivadores , Humanos , Diabetes Mellitus/terapia , Diabetes Mellitus/metabolismo , Proteínas de Homeodominio/metabolismo , Células Secretoras de Insulina/metabolismo , Transactivadores/metabolismo , Factores de Transcripción/metabolismo
17.
Heliyon ; 10(7): e29058, 2024 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-38623202

RESUMEN

Anemia is a severe health issue that affects around one-third of the global population. Therefore, the present study aims to conduct a bibliometric analysis to investigate the research trends regarding advancements on iron formulations in treating iron deficiency anemia via oral or parenteral route. This study adopts thematic and bibliometric methods on existing research on novel iron formulations. It also provides perspective into the existing understanding on treatment strategies for iron deficiency anemia. This study is conducted on 543 papers on various ferrous and ferric formulations used in the treatment of iron deficiency anemia. The study period is from 1977 to 2022, and the papers are identified from the Scopus database. The bibliometric analysis was carried out using the R tool's Bibliometrix package. The study discusses performance analysis, including annual publications, geographic analysis, relevant affiliations, journal analysis, and citation analysis. In addition, the conceptual structure, including the co-occurrence network, thematic map, thematic evolution, intellectual structure highlighting co-citation analysis, and social structure depicting the collaboration network and collaboration world map, are presented. The results showed increased research on formulation strategies for the treatment of iron deficiency anemia from 2010 onwards. The top 5 contributing countries are the USA, Italy, India, Germany, and the UK, and peer-reviewed journals from the area of nutrition. The most trending areas of study are iron deficiency anemia in pregnancy, chronic kidney diseases, inflammatory bowel diseases, and various intravenous formulations used in its treatment. The authors from Europe collaborate the most with authors from other countries. The study concludes that a safer and more effective iron formulation is needed to reduce the prevalence of anemia. The findings of the study are helpful in advancing research on innovative formulations for treating iron deficiency anemia. The insights from the study are helpful to policymakers in designing specific health policies and investing more in research and development of novel formulations for the treatment of iron deficiency anemia.

18.
Indian J Exp Biol ; 51(9): 694-701, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24377128

RESUMEN

Normal rats pre-treated with P. kurroa (200 mg/kg) alone did not showed significant change, however, isoproterenol (ISP) administration resulted in hemodynamic and left ventricular dysfunction, oxidative stress, and lipid peroxidation. Such cardiac dysfunction was significantly prevented by P. kurroa root extract pre-treatment. Pre-treatment significantly attenuated the ISP-induced oxidative stress by restoring myocardial superoxide dismutase, catalase, and glutathione peroxidase enzymes except reduced glutathione content. P. kurroa pre-treatment markedly attenuated the ISP-induced rise in lipid peroxidation, thereby prevented leakage of myocyte creatine kinase-MB and lactate dehydrogenase enzymes. The results suggest that P. kurroa root extract possesses significant cardioprotective effect, which may be attributed to its antioxidant, anti-peroxidative, and myocardial preservative properties.


Asunto(s)
Cardiotónicos/farmacología , Extractos Vegetales/farmacología , Raíces de Plantas/química , Plantago/química , Animales , Masculino , Ratas , Ratas Wistar
19.
Int J Biol Macromol ; 242(Pt 1): 124581, 2023 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-37105251

RESUMEN

Sirtuins or Sir (Silent information regulator) are NAD+-dependent enzymes playing an important part in the pathogenesis and treatment of various disorders. They have ubiquitously expressed protein deacetylases. They are implicated in several cellular activities like DNA repair, cellular metabolism, mitochondrial function, and inflammation. Deletion of sirtuin protein, SIRT1 in the organs like brain, heart, liver and pancreas can cause inflammation and increases the level of free radical ions causing oxidative stress. Inflammation and oxidative stress are closely associated with pathophysiological events in many chronic diseases, like diabetes, cancer, cardiovascular, osteoporosis, and neurodegenerative diseases. Modulation of SIRT1 gene expression might help in preventing the progression of chronic diseases related to the brain, heart, liver, and pancreas. SIRT2 proteins play an essential role in tumorigenesis, including tumor-suppressing and tumor-promoting functions. Sirtuin activators are molecules that upregulate the activity of Sirtuins in the body. Their multifaceted uses have surprised the global scientific community. They are found to control obesity, lower cardiac risks, battle cancer, etc. This article provides an update on the pharmacological effect of SIRT1 and SIRT 2 proteins, their activators and inhibitors, and their molecular mechanism. It provides novel insights for future research in targeted therapy and drug development.


Asunto(s)
Neoplasias , Sirtuina 1 , Humanos , Sirtuina 1/genética , Sirtuina 1/metabolismo , Estrés Oxidativo , Neoplasias/tratamiento farmacológico , Neoplasias/metabolismo , Mitocondrias/metabolismo , Inflamación/metabolismo
20.
Am J Transl Res ; 15(11): 6321-6341, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38074830

RESUMEN

Reactive oxygen species (ROS) play a crucial role in cell survival regulation, and its low levels may act as indicators to encourage cellular proliferation. In contrast, elevated levels of ROS may lead to apoptosis. Stability between generating and eliminating ROS allows the retention of effective functioning of redox-sensitive signaling proteins under physiologic conditions. Cells typically maintain redox homeostasis to guarantee appropriate responses to internal and external stimuli. However, oxidative stress occurs when the oxidation product level exceeds the number of standard antioxidant systems. ROS can cause harm to all types of hepatic cells, including endothelial cells, hepatocytes, Kupffer cells, and stellate cells. High levels of ROS may lead to tissue edema, ischemia, fibrosis, cell death, or malignant transformation and may eventually lead to complete tissue damage. Antioxidants in our body exist in a homeostatic balance with other enzymes involved in the repair of cellular functions in addition to the non-enzymatic molecules such as urate, bilirubin, several vitamins, and reduced glutathione to maintain the levels of ROS in the interest of cellular homeostasis. This balance may, however, get disturbed in case of acute or chronic liver injury due to the accumulation of ROS. In the current manuscript, we aim to review the relevance of oxidative stress and its indicator of liver injury in chronic liver diseases such as alcoholic and non-alcoholic fatty liver diseases and hepatitis. Since reactive oxidation species may also lead to lipid peroxidation and promote ferroptosis, we have also evaluated their impact on epigenetic modifications, such as oxidative damage to histone proteins and DNA methylation, and the differential expression of genes related to cellular injury. We also want to highlight the potential of traditional herbal medicines as redox regulators for managing chronic liver diseases.

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