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1.
Sensors (Basel) ; 23(24)2023 Dec 18.
Artículo en Inglés | MEDLINE | ID: mdl-38139734

RESUMEN

Human action recognition (HAR) is a rapidly growing field with numerous applications in various domains. HAR involves the development of algorithms and techniques to automatically identify and classify human actions from video data. Accurate recognition of human actions has significant implications in fields such as surveillance and sports analysis and in the health care domain. This paper presents a study on the design and development of an imitation detection system using an HAR algorithm based on deep learning. This study explores the use of deep learning models, such as a single-frame convolutional neural network (CNN) and pretrained VGG-16, for the accurate classification of human actions. The proposed models were evaluated using a benchmark dataset, KTH. The performance of these models was compared with that of classical classifiers, including K-Nearest Neighbors, Support Vector Machine, and Random Forest. The results showed that the VGG-16 model achieved higher accuracy than the single-frame CNN, with a 98% accuracy rate.


Asunto(s)
Aprendizaje Profundo , Humanos , Reconocimiento de Normas Patrones Automatizadas , Conducta Imitativa , Redes Neurales de la Computación , Algoritmos
2.
Int J Mol Sci ; 23(3)2022 Feb 06.
Artículo en Inglés | MEDLINE | ID: mdl-35163777

RESUMEN

Lung cancer (LC) is one of the leading causes of cancer occurrence and mortality worldwide. Treatment of patients with advanced and metastatic LC presents a significant challenge, as malignant cells use different mechanisms to resist chemotherapy. Drug resistance (DR) is a complex process that occurs due to a variety of genetic and acquired factors. Identifying the mechanisms underlying DR in LC patients and possible therapeutic alternatives for more efficient therapy is a central goal of LC research. Advances in nanotechnology resulted in the development of targeted and multifunctional nanoscale drug constructs. The possible modulation of the components of nanomedicine, their surface functionalization, and the encapsulation of various active therapeutics provide promising tools to bypass crucial biological barriers. These attributes enhance the delivery of multiple therapeutic agents directly to the tumor microenvironment (TME), resulting in reversal of LC resistance to anticancer treatment. This review provides a broad framework for understanding the different molecular mechanisms of DR in lung cancer, presents novel nanomedicine therapeutics aimed at improving the efficacy of treatment of various forms of resistant LC; outlines current challenges in using nanotechnology for reversing DR; and discusses the future directions for the clinical application of nanomedicine in the management of LC resistance.


Asunto(s)
Antineoplásicos/uso terapéutico , Resistencia a Antineoplásicos/efectos de los fármacos , Neoplasias Pulmonares/tratamiento farmacológico , Antineoplásicos/farmacología , Sistemas de Liberación de Medicamentos , Resistencia a Múltiples Medicamentos/efectos de los fármacos , Humanos , Nanomedicina Teranóstica , Microambiente Tumoral/efectos de los fármacos
3.
Chem Phys Lett ; 7352019 Nov 16.
Artículo en Inglés | MEDLINE | ID: mdl-32863396

RESUMEN

We report suppression of multiphoton ionization (MPI) of aniline doped large superfluid helium droplets containing over 5 × 106 atoms. In contrast, surface-bound sodium atoms and dimers are readily desorbed and ionized. Adequacy of the experimental conditions is also confirmed from ejection of embedded aniline cations from smaller droplets containing multiple cations, and MPI of gaseous aniline. The photoelectrons have a mean-free-path of less than 1 nm and a thermalization distance of 10 nm. In a droplet with a diameter of over 70 nm, effective charge recombination within the droplet is expected.

4.
J Chem Phys ; 151(13): 134307, 2019 Oct 07.
Artículo en Inglés | MEDLINE | ID: mdl-31594345

RESUMEN

We report experimental observations of aniline (A) cations and He2 + when aniline is doped into ionized helium droplets. Large droplets containing 108 atoms are bombarded by energetic electrons, resulting in more than one positive charge in one droplet. When aniline encounters the charged droplets, some are ionized via charge transfer, while others can remain neutral in the presence of He2 + when the mass-to-charge ratio (m/z) of the droplet is sufficiently large. Upon resonant excitation of the dopant An or An + (n ≥ 1), He2 + can be ejected. The excitation spectrum of He2 + becomes a juxtaposition of the spectra of An and An +. Moreover, an anticorrelation between the yields of He2 + and A+ is observed with increasing energies of the ionizing electrons. We attribute this result to the combined effect of reduction in m/z of the droplets and the different locations of He2 + and neutral An. Limited by the penetration depths of the ionizing electrons and further assisted by the Coulomb repulsion of coexisting cations, He2 + is located within 20 nm of the surface, while neutral An has an average position inside a large droplet. Upon resonant excitation of the interior An, He2 + is preferentially ejected. With increasing energies of the colliding electrons, the m/z of the droplets are reduced, leading to less effective charge shielding and more effective charge transfer, until ultimately, all He2 + can be neutralized to form A+.

5.
J Phys Chem A ; 121(36): 6671-6678, 2017 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-28825305

RESUMEN

We report doping of green fluorescent protein from an electrospray ionization (ESI) source into superfluid helium droplets. From analyses of the time profiles of the doped droplets, we identify two distinct groups of droplets. The faster group has a smaller average size, on the order of 106 helium atoms/droplet, and the slower group is much larger, by at least an order of magnitude. The relative populations of these two groups depend on the temperature of the droplet source: from 11 to 5 K, the signal intensity of the slower droplet group gradually increases, from near the detection limit to comparable to that of the faster group. We postulate that the smaller droplets are formed via condensation of gaseous helium upon expansion from the pulsed valve, while the larger droplets develop from fragmentation of ejected liquid helium. Our results on the size and velocity of the condensation peak at higher source temperatures (>7 K) agree with previous reports, but those at lower temperatures (<7 K) seem to be off. We attribute this discrepancy to the masking effect of the exceedingly large droplets from the fragmentation peak in previous measurements of droplet sizes. Within the temperature range of our investigation, although the expansion condition changes from subcritical to supercritical, there is no abrupt change in either the velocity distribution or the size distribution of the condensation peak, and the most salient effect is in the increasing intensity of the fragmentation peak. The absolute doping efficiency, as expressed by the ratio of ion-doped droplets over the total number of ions from the ESI source, is on the order of 10-4, while only hundreds of doped ions have been detected. Further improvements in the ESI source are key to extending the technology for future experiments. On the other hand, the separation of the two groups of droplets in velocity is beneficial for size selection of only the smaller droplets for future experiments of electron diffraction.


Asunto(s)
Proteínas Fluorescentes Verdes/química , Helio/química , Tamaño de la Partícula , Espectrometría de Masa por Ionización de Electrospray , Temperatura
6.
Artículo en Inglés | MEDLINE | ID: mdl-38847060

RESUMEN

BACKGROUND: The medical treatment of ulcerative colitis (UC) includes the use of biological agents such as vedolizumab, a gut-selective alpha4beta7 (ɑ4ß7) antagonist. The mechanism of action of vedolizumab involves interfering with leukocyte trafficking into the gut vasculature, which halts inflammation. Due to this mechanism of action, concerns have arisen regarding an increased risk of gut infections, specifically, clostridium difficile infection (CDI). The aim is to provide clarity regarding the association between the use of vedolizumab as a therapy for ulcerative colitis and the risk of developing CDI. METHODS: A systematic literature review was conducted, starting with the scoping search, followed by backward snowballing parallel with keyword-based search to identify related articles. A quality assessment was conducted on the initially selected articles and excluded low-quality papers. RESULTS: Pooled analyses indicated that there was no significant association between the use of vedolizumab and the risk of developing CDI (effect size = 0.03 [-0.02, 0.07]). CONCLUSIONS: Vedolizumab does not increase the risk of CDI in patients with UC. Further studies are needed to confirm these findings.

7.
J Drug Target ; 32(4): 433-443, 2024 04.
Artículo en Inglés | MEDLINE | ID: mdl-38385752

RESUMEN

Traditional treatments for head and neck squamous cell carcinoma (HNSCC) such as surgery, radiation therapy, and chemotherapy, often have severe side effects. Local delivery of chemotherapeutic agents can be a promising approach to minimise systemic toxicity and improve efficacy. Lauric acid (LA), was explored as a novel injectable thermosensitive drug reservoir as a depot for sustained release of anticancer drugs to treat HNSCC. LA was characterised in terms of melting temperature and gelation time. The efficacy of LA-based drug formulations was tested in vitro in a HNSCC cell line and in vivo in a mouse model of HNSCC. LA was modified to have a melting point of 38.5 °C and a gelation time of 40 s at 37.5 °C, rendering it suitable for injection at body temperature. LA- based doxorubicin (DOXO) formulation showed slow release with a maximum of 18% release after 3 days. The in vitro study showed that LA enhanced the cytotoxic effect of DOXO. LA combined with DOXO prevented tumour progression and LA alone significantly reduced the original tumour volume compared to the untreated control group. These findings confirmed that LA can function as practical carrier for the local delivery of chemotherapeutics and provides a safe and simple strategy for the delivery of hydrophobic anticancer drugs and warrant further testing in clinical trials.


Asunto(s)
Antineoplásicos , Neoplasias de Cabeza y Cuello , Animales , Ratones , Carcinoma de Células Escamosas de Cabeza y Cuello/tratamiento farmacológico , Ácidos Láuricos , Doxorrubicina/farmacología , Doxorrubicina/uso terapéutico , Neoplasias de Cabeza y Cuello/tratamiento farmacológico
8.
J Med Life ; 17(4): 432-441, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-39071508

RESUMEN

Pediatric neurological emergencies are a significant concern, often leading to high rates of admission to pediatric intensive care units and increased mortality rates. In Saudi Arabia, the emergency department (ED) is the main entry point for most patients in the healthcare system. This study aimed to provide a comprehensive overview of pediatric neurology visits to the ED, analyzing patient demographics, clinical presentations, and outcomes. The retrospective study was conducted at a large tertiary care center and examined 960 pediatric patients with neurological emergencies out of 24,088 pediatric ED visits. The study population consisted mainly of male participants (56.5%) and 43.5% female participants, with a mean age of 5.29 ± 4.19 years. School-age children (6-12 years) represented the largest population group (29.1%), and over a third of patients were triaged as 'resuscitation' (n = 332, 34.6%). Seizures (n = 317, 33.0%) and postictal states (n = 187, 19.5%) were the most common reasons for seeking emergency care, accounting for over half of all cases. There were statistically significant differences in provisional diagnosis and chief complaints across different age groups (P >0.001 and P <0.001, respectively). The most common outcome was discharge (n = 558; 58.1%), and the mean length of stay was 10.56 ± 20.33 hours. Neuro-emergencies in pediatrics are a concern and a leading cause of mortality, morbidities, and increased hospital visits. The observed variations in presentation and outcomes across age groups further emphasize the importance of tailored approaches.


Asunto(s)
Servicio de Urgencia en Hospital , Humanos , Masculino , Femenino , Niño , Preescolar , Estudios Retrospectivos , Arabia Saudita/epidemiología , Servicio de Urgencia en Hospital/estadística & datos numéricos , Adolescente , Urgencias Médicas , Enfermedades del Sistema Nervioso/terapia , Lactante
9.
Toxicol Lett ; 401: 13-23, 2024 Aug 27.
Artículo en Inglés | MEDLINE | ID: mdl-39197506

RESUMEN

BACKGROUND: Nowadays, the use of food additives, such as Sunset Yellow (SY), is growing, which attracted attention to the potential relationship between some diseases and food additives. AIM: The study aimed to investigate the role of Sunset Yellow during chemically-induced mammary gland carcinogenesis in Sprague-Dawley rats. MATERIAL AND METHODS: Three groups of female rats were intraperitoneally administered with N-methyl-N-nitrosourea (MNU). Group 1 was set on a basal diet. Group 2 was treated with 161.4 mg\kg\day Sunset Yellow (SY). Group 3 was given SY at 80.7 mg\kg\day. Groups 4-6 were not administered MNU; Group 4 received vehicles only. Groups 5 and 6 were administered SY similarly to groups 2 and 3 respectively. RESULTS: Sunset Yellow at both doses exerted a significant dose-dependent increase in tumor incidences, multiplicities, volumes, and decreased tumor latency as compared with control. Immunolabeling indexes of the proliferating cell nuclear antigen, estrogen receptor alpha, and progesterone receptor were significantly increased after SY treatment. Oxidative stress markers, serum estrogen, progesterone, and prolactin levels were significantly modified by SY treatment. The mRNA expression of estrogen receptor alpha and epidermal growth factor was up-regulated in SY groups versus control. CONCLUSION: Collectively, SY has significantly promoted MNU-induced mammary tumors in rats with underlying mechanisms correlating SY consumption with estrogen disruption and subsequent antioxidative stress discrepancy.

10.
Nanomaterials (Basel) ; 14(3)2024 Jan 31.
Artículo en Inglés | MEDLINE | ID: mdl-38334561

RESUMEN

The purification and densification of wastewater play an important role in water recycling, especially if the materials used in water recycling are other types of recycled waste. Therefore, considering this view in this study, the biosynthesis of silver-decorated chromium oxide nanoparticles utilizing a wasted Allium sativum (garlic) peel extract is investigated. The aqueous extract of garlic peel (GPE) was treated with silver nitrate, chromium nitrate, and a mixture of silver nitrate and chromium nitrate to synthesize silver nanoparticles (Ag-garlic), chromium oxide nanoparticles (Cr2O3-garlic), and silver-decorated chromium oxide nanoparticles (Ag@Cr2O3-garlic), respectively. The synthesized nanoparticles were elucidated via thermal gravimetric analysis (TGA), infrared spectra (FT-IR), absorption spectra (UV-Vis), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). Antimicrobial activity studies were conducted against waterborne germs, bacterial strains (Bacillus subtilis, Enterococcus faecium, Escherichia coli, and Pseudomonas aeruginosa), and fungal strains (Alternaria porri, Aspergillus flavus, Aspergillus niger, Fuserium oxysporum, and Trichoderma longibrachiatum) and showed significant levels of antimicrobial activity. The results revealed that Ag@Cr2O3 significantly improved antimicrobial activity due to their synergistic effect. The photocatalytic activity of nanoparticles was assessed using Rhodamine B dye (5 ppm) under solar irradiation. Cr2O3-garlic exhibited the best activity as a photocatalyst among the studied nanoparticles, with 97.5% degradation efficiency under optimal conditions.

11.
Heliyon ; 10(3): e24815, 2024 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-38322933

RESUMEN

The aqueous onion peel extract (OPE) was used to synthesize silver nanoparticles (Ag-onion), samarium oxide nanoparticles (Sm2O3-onion), and silver/samarium oxide core/shell nanoparticles (Ag@Sm2O3-onion). The produced nanoparticles were characterized by thermal gravimetric analysis (TGA), infrared spectra (FT-IR), absorption spectra (UV-Vis), energy band gap, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), zeta potential, and transmission electron microscopy (TEM). OPE and NPs were tested for the disinfection of some water microbes. XRD analysis exhibited an amorphous structure of samarium oxide in both Sm2O3-onion and Ag@ Sm2O3-onion. The isolated bacteria from the water sample were Bacillus subtilis (OQ073500) and Escherichia coli (MW534699), while the isolated fungi were Alternaria brassicae (MZ266540), Aspergillus flavus (MT550030), Aspergillus penicillioides (MW957971), Pythium ultimum (MW830915), Verticillium dahlia (MW830379), Fusarium acuminatum (MZ266538), Candida albicans (MW534712), and Candida parapsilosis (MW960416). High levels of antimicrobial activity were seen in both the nanoparticles and the aqueous onion peel extract. Based on experimental results, Ag@Sm2O3 demonstrated the highest activity as an effective disinfectant, indicating the effectiveness of the modification process.

12.
ACS Omega ; 9(16): 18505-18515, 2024 Apr 23.
Artículo en Inglés | MEDLINE | ID: mdl-38680330

RESUMEN

A new series of cinnamide-fluorinated derivatives has been synthesized and characterized by using different spectroscopic and elemental microanalyses methods. All of the prepared p-fluorocinnamide derivatives were evaluated for their cytotoxic activity against the HepG2 liver cancerous cell line. The imidazolone derivative 6, which bears N-(N-pyrimidin-2-ylbenzenesulphamoyl) moiety, displayed antiproliferative activity against HepG2 liver cancerous cells with an IC50 value of 4.23 µM as compared to staurosporin (STU) (IC50 = 5.59 µM). In addition, compound 6 experienced epidermal growth factor receptor (EGFR) inhibitory activity comparable to palatinib. The cell cycle analysis by flow cytometry indicated that compound 6 arrested the cellular cycle of HepG2 cells at the G1 phase. Additionally, as demonstrated by the fluorescence-activated cell sorting (FACS) technique, compound 6 increased both early and late apoptotic ratios compared to control untreated HepG2 cells. Moreover, imidazolone compound 6 induced apoptosis via the intrinsic apoptotic pathway by decreasing the level of mitochondrial membrane polarization (MMP) compared to untreated HepG2 cells. Therefore, the new N-(N-pyrimidin-2-ylbenzenesulphamoyl)imidazolone derivative 6 could be considered a potential platform for further optimizing an antitumor agent against hepatocellular carcinoma.

13.
RSC Adv ; 14(16): 11443-11451, 2024 Apr 03.
Artículo en Inglés | MEDLINE | ID: mdl-38595714

RESUMEN

The present work aims at design and synthesis of a congeneric series of small hybrids 5 and 6a-i featuring the privileged quinoline scaffold tethered with 2-(arylamido)cinnamide moiety as potential anticancer tubulin polymerization inhibitors. Most of the synthesized hybrids 5 and 6a-i significantly inhibited the growth of the HepG2 cell line, with IC50 ranged from 2.46 to 41.31 µM. In particular, 2-(3,4,5-trimethoxybenzamido)-4-methoxycinnamide-quinoline hybrid 6e displayed potent IC50 value toward the examined cell line, and hence chosen for further mechanistic investigations. It is noteworthy that the antiproliferative action of compound 6e highly correlated well with its ability to inhibit tubulin polymerization. In addition, the most potent hybrid 6e demonstrated a significant modification in the cellular cycle distribution, in addition to provoke of apoptotic death within the tested HepG2 cell line. Furthermore, the mechanistic approach was confirmed by a substantial upregulation in the quantity of active caspase 9 by 5.81-fold relative to untreated control cells.

14.
Front Mol Biosci ; 11: 1387919, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38872915

RESUMEN

Introduction: Increased Actin-like 6A (ACTL6A) expression is associated with various cancers, but its comprehensive investigation across different malignancies is lacking. We aimed to analyze ACTL6A as a potential oncogene and therapeutic target using bioinformatics tools. Methods: We comprehensively analyzed ACTL6A expression profiles across human malignancies, focusing on correlations with tumor grade, stage, metastasis, and patient survival. Genetic alterations were examined, and the epigenetic landscape of ACTL6A was assessed using rigorous methods. The impact of ACTL6A on immune cell infiltration in the tumor microenvironment was evaluated, along with molecular docking studies and machine learning models. Results: Our analysis revealed elevated ACTL6A expression in various tumors, correlating with poor prognostic indicators such as tumor grade, stage, metastasis, and patient survival. Genetic mutations and epigenetic modifications were identified, along with associations with immune cell infiltration and key cellular pathways. Machine learning models demonstrated ACTL6A's potential for cancer detection. Discussion: ACTL6A emerges as a promising diagnostic and therapeutic target in cancer, with implications for prognosis and therapy. Our study provides comprehensive insights into its carcinogenic actions, highlighting its potential as both a prognostic indicator and a target for anti-cancer therapy. This integrative approach enhances our understanding of ACTL6A's role in cancer pathogenesis and treatment.

15.
Sci Rep ; 14(1): 8902, 2024 04 17.
Artículo en Inglés | MEDLINE | ID: mdl-38632250

RESUMEN

Colorectal cancer (CRC) is the third most common cancer affecting people. The discovery of new, non-invasive, specific, and sensitive molecular biomarkers for CRC may assist in the diagnosis and support therapeutic decision making. Exosomal miRNAs have been demonstrated in carcinogenesis and CRC development, which makes these miRNAs strong biomarkers for CRC. Deep sequencing allows a robust high-throughput informatics investigation of the types and abundance of exosomal miRNAs. Thus, exosomal miRNAs can be efficiently examined as diagnostic biomarkers for disease screening. In the present study, a number of 660 mature miRNAs were detected in patients diagnosed with CRC at different stages. Of which, 29 miRNAs were differentially expressed in CRC patients compared with healthy controls. Twenty-nine miRNAs with high abundance levels were further selected for subsequent analysis. These miRNAs were either highly up-regulated (e.g., let-7a-5p, let-7c-5p, let-7f-5p, let-7d-3p, miR-423-5p, miR-3184-5p, and miR-584) or down-regulated (e.g., miR-30a-5p, miR-99-5p, miR-150-5p, miR-26-5p and miR-204-5p). These miRNAs influence critical genes in CRC, leading to either tumor growth or suppression. Most of the reported diagnostic exosomal miRNAs were shown to be circulating in blood serum. The latter is a novel miRNA that was found in exosomal profile of blood serum. Some of the predicted target genes of highly expressed miRNAs participate in several cancer pathways, including CRC pathway. These target genes include tumor suppressor genes, oncogenes and DNA repair genes. Main focus was given to multiple critical signaling cross-talking pathways including transforming growth factor ß (TGFß) signaling pathways that are directly linked to CRC. In conclusion, we recommend further analysis in order to experimentally confirm exact relationships between selected differentially expressed miRNAs and their predicted target genes and downstream functional consequences.


Asunto(s)
Neoplasias Colorrectales , Exosomas , MicroARNs , Humanos , MicroARNs/genética , Suero/metabolismo , Neoplasias Colorrectales/patología , Pronóstico , Biomarcadores/metabolismo , Exosomas/metabolismo
16.
Future Med Chem ; 16(16): 1665-1684, 2024 Aug 17.
Artículo en Inglés | MEDLINE | ID: mdl-38949859

RESUMEN

Aim: To synthesize new hybrid cinnamic acids (10a, 10b and 11) and ester derivatives (7, 8 and 9) and investigate their anti-breast cancer activities.Materials & methods: Compounds 7-11 were evaluated (in vitro) for their cytotoxic activities against the MCF-7 cell line. A flow cytometry examination was performed. Protein levels of nuclear factor erythroid 2-related factor 2 (Nrf2), topoisomerase II and caspase-9 were measured by qRT-PCR. Molecular docking studies were conducted.Results: Several components were discovered to be active, mainly component 11, which induced arrest in the cell cycle at phase S, greatly decreased the expression of Nrf2 and topoisomerase II; and upregulated the expression of caspase-9.Conclusion: The newly thiohydantoin-cinnamic acid hybrids can contribute to creating promising candidates for cancer drugs.


[Box: see text].


Asunto(s)
Antineoplásicos , Neoplasias de la Mama , Cinamatos , Simulación del Acoplamiento Molecular , Humanos , Cinamatos/química , Cinamatos/farmacología , Cinamatos/síntesis química , Antineoplásicos/farmacología , Antineoplásicos/química , Antineoplásicos/síntesis química , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/patología , Neoplasias de la Mama/metabolismo , Femenino , Células MCF-7 , Tiohidantoínas/farmacología , Tiohidantoínas/química , Tiohidantoínas/síntesis química , Ensayos de Selección de Medicamentos Antitumorales , Proliferación Celular/efectos de los fármacos , Factor 2 Relacionado con NF-E2/metabolismo , Factor 2 Relacionado con NF-E2/antagonistas & inhibidores , Relación Estructura-Actividad , Estructura Molecular , ADN-Topoisomerasas de Tipo II/metabolismo , Apoptosis/efectos de los fármacos , Caspasa 9/metabolismo
17.
J Exp Zool A Ecol Integr Physiol ; 341(6): 647-657, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38594572

RESUMEN

Type 1 diabetes stem-cell-based treatment approach is among the leading therapeutic strategies for treating cardiac damage owing to the stem cells' regeneration capabilities. Mesenchymal stem cells derived from adipose tissue (AD-MSCs) have shown great potential in treating diabetic cardiomyopathy (DCM). Herein, we explored the antioxidant-supporting role of N, N'-diphenyl-1,4-phenylenediamine (DPPD) in enhancing the MSCs' therapeutic role in alleviating DCM complications in heart tissues of type 1 diabetic rats. Six male albinos Wistar rat groups have been designed into the control group, DPPD (250 mg/kg, i.p.) group, diabetic-untreated group, and three diabetic rat groups treated with either AD-MSCs (1 × 106 cell/rat, i.v.) or DPPD or both. Interestingly, all three treated diabetic groups exhibited a significant decrease in serum glucose, HbA1c, heart dysfunction markers (lactate dehydrogenase and CK-MP) levels, and lipid profile fractions (except for HDL-C), as well as some cardiac oxidative stress (OS) levels (MDA, AGEs, XO, and ROS). On the contrary, serum insulin, C-peptide, and various cardiac antioxidant levels (GSH, GST, CAT, SOD, TAC, and HO-1), beside viable cardiac cells (G0/G1%), were markedly elevated compared with the diabetic untreated group. In support of these findings, the histological assay reflected a marked enhancement in the cardiac tissues of all diabetic-treated groups, with obvious excellency of the AD-MSCs + DPPD diabetic-treated group. Such results strongly suggested the great therapeutic potentiality of either DPPD or AD-MSCs single injection in enhancing the cardiac function of diabetic rats, with a great noted enhancement superiority of DPPD and AD-MSCs coadministration.


Asunto(s)
Diabetes Mellitus Experimental , Diabetes Mellitus Tipo 1 , Cardiomiopatías Diabéticas , Ratas Wistar , Animales , Cardiomiopatías Diabéticas/terapia , Masculino , Ratas , Diabetes Mellitus Tipo 1/complicaciones , Diabetes Mellitus Tipo 1/terapia , Diabetes Mellitus Experimental/complicaciones , Diabetes Mellitus Experimental/terapia , Fenilendiaminas/farmacología , Fenilendiaminas/administración & dosificación , Tejido Adiposo , Trasplante de Células Madre Mesenquimatosas , Células Madre Mesenquimatosas , Estrés Oxidativo/efectos de los fármacos
18.
Behav Sci (Basel) ; 13(7)2023 Jul 16.
Artículo en Inglés | MEDLINE | ID: mdl-37504045

RESUMEN

Robotics technology has been increasingly used as an educational and intervention tool for children with autism spectrum disorder (ASD). However, there remain research issues and challenges that need to be addressed to fully realize the potential benefits of robot-assisted therapy. This systematic review categorizes and summarizes the literature related to robot educational/training interventions and provides a conceptual framework for collecting and classifying these articles. The challenges identified in this review are classified into four levels: robot-level, algorithm-level, experimental-research-level, and application-level challenges. The review highlights possible future research directions and offers crucial insights for researchers interested in using robots in therapy. The most relevant findings suggest that robot-assisted therapy has the potential to improve social interaction, communication, and emotional regulation skills in children with ASD. Addressing these challenges and seeking new research avenues will be critical to advancing the field of robot-assisted therapy and improving outcomes for children with ASD. This study serves as a roadmap for future research in this important area.

19.
Artículo en Inglés | MEDLINE | ID: mdl-37192867

RESUMEN

Metastatic breast cancer is difficult to cure and has a worse prognosis with higher rates of mortality. Recently, breast surgery is believed to improve the survival rates among these women, but due to limited evidence, definite conclusions cannot be made. Therefore, we undertook this narrative review to synthesize the evidence from existing studies to assess the effectiveness of locoregional surgery and surgery of metastatic sites in improving the outcomes among women diagnosed with metastatic cancer disease along with the summary of current treatment guidelines. We reviewed PubMed and Embase and included both observational studies and randomized controlled trials (RCTs) that were published in English between 2000 and 2021. Outcomes were either survival, quality of life, toxicity related to local treatment assessed by mortality at the end of one month, progression-free survival, and breast cancer-specific survival. The main effect size assessed was hazard ratio with their 95% CIs. After literature search, we found 8 observational studies and 3 RCTs. The findings of the observational studies revealed that breast cancer surgery improves survival from 30% to 50% among women. However, findings from RCTs were mixed for local and distant progression survival. Surgery improved the local progression-free survival but worsened the distant progression-free survival. Besides, there was no effect of breast surgery on quality of life. Regarding the surgery of metastatic site, studies are complex with mixed findings and variation in survival depending upon the type of metastatic site and response to initial systematic therapy and other factors. Based on the existing mixed evidence, it is not possible to make firm and definite conclusions about the effectiveness of breast surgery in improving the survival or quality of life among women with metastatic breast cancer. In future, more RCTs are required with a larger sample size to confirm the findings of observational studies.

20.
J Pediatr Surg ; 58(11): 2192-2195, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37156702

RESUMEN

INTRODUCTION: Social media is fast becoming the preferred source of information for many individuals. There is no information on the utilization of social media by patients or parents in the field of pediatric surgery. The aim of this study is to first identify parents' utilization of social media as a source of information in pediatric surgery. Secondly, we sought to identify the patient family perception towards the role of the pediatric surgeon on social media. METHODS: A voluntary electronic survey was designed to assess participants' usage of social media platforms. We included parents of children with ages between 0 and 14 years presenting to our outpatient clinics. Data on demographics, social media usage among parents, and their attitude toward pediatric surgery in social media was collected. RESULTS: 227 responses were obtained. Half of our respondents were female and the rest were male, 114 (50.2%) and 113 (49.8%) respectively. The majority of respondents, 190 (83.4%) were millennials between the ages of 25-44 years. 205 of the respondents (90.3%) used multiple social media platforms. Half of the respondents 115 (50.7%) have used social media to search for information pertaining to their child's medical condition and 192 (85.58%) would like pediatric surgeons to be active on social media platforms. CONCLUSION: Social media plays a major role in healthcare. This study has clearly identified that parents are going to social media for information on their child's surgical condition. Pediatric surgeons should consider establishing an online presence to educate and inform patients and parents. LEVEL OF EVIDENCE: IV.

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