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This case report details a rare instance of a perforated jejunal gastrointestinal stromal tumor (GIST) in a 76-year-old female patient. The patient presented with acute abdominal pain and distension without any changes in bowel habits or episodes of nausea and vomiting. Initial diagnostics, including abdominal plain radiography and ultrasonography, were inconclusive; however, a computed tomography (CT) scan revealed pneumoperitoneum and an irregular fluid collection suggestive of small intestine perforations. Surgical intervention uncovered a 35 mm jejunal GIST with a 10 mm perforation. Histopathological examination confirmed a mixed cell type GIST with high malignancy potential, further substantiated by immunohistochemistry markers CD117, DOG1, and vimentin. Molecular analysis illuminated the role of key oncogenes, primarily KIT and PDGFRA mutations, emphasizing the importance of molecular diagnostics in GIST management. Despite the severity of the presentation, the patient's postoperative recovery was favorable, highlighting the effectiveness of prompt surgical and multidisciplinary approaches in managing complex GIST cases.
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Metformin, a medication known for its anti-glycemic properties, also demonstrates potent immune system activation. In our study, using a 4T1 breast cancer model in BALB/C WT mice, we examined metformin's impact on the functional phenotype of multiple immune cells, with a specific emphasis on natural killer T (NKT) cells due to their understudied role in this context. Metformin administration delayed the appearance and growth of carcinoma. Furthermore, metformin increased the percentage of IFN-γ+ NKT cells, and enhanced CD107a expression, as measured by MFI, while decreasing PD-1+, FoxP3+, and IL-10+ NKT cells in spleens of metformin-treated mice. In primary tumors, metformin increased the percentage of NKp46+ NKT cells and increased FasL expression, while lowering the percentages of FoxP3+, PD-1+, and IL-10-producing NKT cells and KLRG1 expression. Activation markers increased, and immunosuppressive markers declined in T cells from both the spleen and tumors. Furthermore, metformin decreased IL-10+ and FoxP3+ Tregs, along with Gr-1+ myeloid-derived suppressor cells (MDSCs) in spleens, and in tumor tissue, it decreased IL-10+ and FoxP3+ Tregs, Gr-1+, NF-κB+, and iNOS+ MDSCs, and iNOS+ dendritic cells (DCs), while increasing the DCs quantity. Additionally, increased expression levels of MIP1a, STAT4, and NFAT in splenocytes were found. These comprehensive findings illustrate metformin's broad immunomodulatory impact across a variety of immune cells, including stimulating NKT cells and T cells, while inhibiting Tregs and MDSCs. This dynamic modulation may potentiate its use in cancer immunotherapy, highlighting its potential to modulate the tumor microenvironment across a spectrum of immune cell types.
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Neoplasias da Mama , Metformina , Camundongos Endogâmicos BALB C , Metformina/farmacologia , Metformina/uso terapêutico , Animais , Feminino , Camundongos , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/imunologia , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Linhagem Celular Tumoral , Células Supressoras Mieloides/efeitos dos fármacos , Células Supressoras Mieloides/imunologia , Células Supressoras Mieloides/metabolismo , Células T Matadoras Naturais/imunologia , Células T Matadoras Naturais/efeitos dos fármacos , Células T Matadoras Naturais/metabolismo , Linfócitos T Reguladores/imunologia , Linfócitos T Reguladores/efeitos dos fármacos , Linfócitos T Reguladores/metabolismo , Agentes de Imunomodulação/farmacologiaRESUMO
Heyde syndrome, marked by aortic stenosis, gastrointestinal bleeding from angiodysplasia, and acquired von Willebrand syndrome, is often underreported. Shear stress from a narrowed aortic valve degrades von Willebrand factor multimers, leading to angiodysplasia formation and von Willebrand factor deficiency. This case report aims to raise clinician awareness of Heyde syndrome, its complexity, and the need for a multidisciplinary approach. We present a 75-year-old man with aortic stenosis, gastrointestinal bleeding from angiodysplasia, and acquired von Willebrand syndrome type 2A. The patient was successfully treated with argon plasma coagulation and blood transfusions. He declined further treatment for aortic stenosis but was in good overall health with improved laboratory results during follow-up. Additionally, we provide a comprehensive review of the molecular mechanisms involved in the development of this syndrome, discuss current diagnostic and treatment approaches, and offer future perspectives for further research on this topic.
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Angiodisplasia , Estenose da Valva Aórtica , Hemorragia Gastrointestinal , Humanos , Masculino , Idoso , Estenose da Valva Aórtica/etiologia , Estenose da Valva Aórtica/complicações , Angiodisplasia/complicações , Angiodisplasia/diagnóstico , Angiodisplasia/terapia , Hemorragia Gastrointestinal/etiologia , Doenças de von Willebrand/diagnóstico , Doenças de von Willebrand/complicações , Doenças de von Willebrand/terapia , Fator de von Willebrand/metabolismo , Fator de von Willebrand/genéticaRESUMO
The history of effective anti-cancer medications begins with the discovery of cisplatin's anti-cancer properties. Second-generation analogue, carboplatin, with a similar range of effectiveness, made progress in improving these drugs with fewer side effects and better solubility. Renewed interest in platinum-based drugs has been increasing in the past several years. These developments highlight a revitalized enthusiasm and ongoing exploration in platinum chemotherapy based on the series of dinuclear platinum(II) complexes, [{Pt(L)Cl}2(µ-bridging ligand)]2+, which have been synthesized and evaluated for their biological activities. These complexes are designed to target various cancerous conditions, exhibiting promising antitumor, antiproliferative, and apoptosis-inducing activities. The current work aims to shed light on the potential of these complexes as next-generation platinum-based therapies, highlighting their enhanced efficacy and reduced side effects, which could revolutionize the approach to chemotherapy.
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Antineoplásicos , Humanos , Antineoplásicos/farmacologia , Antineoplásicos/química , Ligantes , Compostos Organoplatínicos/farmacologia , Compostos Organoplatínicos/química , Compostos Organoplatínicos/síntese química , Apoptose/efeitos dos fármacos , Platina/química , Platina/farmacologia , Compostos Heterocíclicos/química , Compostos Heterocíclicos/farmacologia , Compostos Heterocíclicos/síntese química , Animais , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Neoplasias/tratamento farmacológico , Neoplasias/patologiaRESUMO
Background: COVID-19 is known to disrupt immune response and induce hyperinflammation that could potentially induce fatal outcome of the disease. Until now, it is known that interplay among cytokines is rather important for clinical presentation and outcome of COVID-19. The aim of this study was to determine transcriptional activity and functional phenotype of T cells and the relationship between pro- and anti-inflammatory cytokines and clinical parameters of COVID-19 severity. Methods: All recruited patients met criteria for COVID-19 are were divided in four groups according to disease severity. Serum levels of IL-12, IFN-γ, IL-17 and IL-23 were measured, and flow cytometry analysis of T cells from peripheral blood was performed. Results: Significant elevation of IL-12, IFN-γ, IL-17 and IL-23 in stage IV of the disease has been revealed. Further, strong intercorrelation between IL-12, IFN-γ, IL-17 and IL-23 was also found in stage IV of the disease, marking augmented Th1 and Th17 response. Analyses of T cells subsets indicate a noticeable phenotype change. CD4+, but not CD8+ T cells expressed increased transcriptional activity through increased expression of Tbet and RORγT, accompanied with increased percentage of IFN-γ and IL-17 producing T cells. Conclusion: Our results pose a novel hypothesis of the underlying mechanism behind deteriorating immune response in severe cases of COVID-19.
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COVID-19 , Interleucina-17 , Humanos , Interleucina-17/metabolismo , Células Th1 , COVID-19/metabolismo , Citocinas/metabolismo , Interleucina-12/metabolismo , Interleucina-23/metabolismo , Células Th17RESUMO
Interleukin-33 (IL-33) has emerged as a critical cytokine in the regulation of the immune system, showing a pivotal role in the pathogenesis of various diseases including cancer. This review emphasizes the role of the IL-33/ST2 axis in breast cancer biology, its contribution to cancer progression and metastasis, its influence on the tumor microenvironment and cancer metabolism, and its potential as a therapeutic target. The IL-33/ST2 axis has been shown to have extensive pro-tumorigenic features in breast cancer, starting from tumor tissue proliferation and differentiation to modulating both cancer cells and anti-tumor immune response. It has also been linked to the resistance of cancer cells to conventional therapeutics. However, the role of IL-33 in cancer therapy remains controversial due to the conflicting effects of IL-33 in tumorigenesis and anti-tumor response. The possibility of targeting the IL-33/ST2 axis in tumor immunotherapy, or as an adjuvant in immune checkpoint blockade therapy, is discussed.
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Pancreatic Ductal Adenocarcinoma (PDAC) remains one of the most challenging malignancies to treat, with a complex interplay of molecular pathways contributing to its aggressive nature. Galectin-1 (Gal-1), a member of the galectin family, has emerged as a pivotal player in the PDAC microenvironment, influencing various aspects from tumor growth and angiogenesis to immune modulation. This review provides a comprehensive overview of the multifaceted role of Galectin-1 in PDAC. We delve into its contributions to tumor stroma remodeling, angiogenesis, metabolic reprogramming, and potential implications for therapeutic interventions. The challenges associated with targeting Gal-1 are discussed, given its pleiotropic functions and complexities in different cellular conditions. Additionally, the promising prospects of Gal-1 inhibition, including the utilization of nanotechnology and theranostics, are highlighted. By integrating recent findings and shedding light on the intricacies of Gal-1's involvement in PDAC, this review aims to provide insights that could guide future research and therapeutic strategies.
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Carcinoma Ductal Pancreático , Galectina 1 , Neoplasias Pancreáticas , Humanos , Carcinoma Ductal Pancreático/tratamento farmacológico , Galectina 1/genética , Galectina 1/metabolismo , Evasão da Resposta Imune , Neoplasias Pancreáticas/tratamento farmacológico , Microambiente Tumoral , Neoplasias PancreáticasRESUMO
Isolated chronic granulomatous meningitis remains a diagnostic challenge for the physician. Symptoms are often nonspecific and ancillary tests have low-sensitivity rates, which may delay targeted treatment and lead to increased morbidity and mortality. Here, we discuss the challenges in diagnosing and treating patients with chronic meningitis by reporting two cases of previously healthy patients who presented with granulomatous meningitis on brain biopsy.
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Doenças do Sistema Nervoso Central , Meningite , Sarcoidose , Tuberculose Meníngea , Doenças do Sistema Nervoso Central/diagnóstico por imagem , Humanos , Meningite/diagnóstico , Sarcoidose/diagnóstico , Sarcoidose/patologia , Sarcoidose/terapia , Tuberculose Meníngea/diagnósticoRESUMO
Ulcerative colitis is chronic immune-mediated disorder that affects primarily colonic mucosa. The metabolic syndrome has increasing global prevalence with a significant impact on biology of chronic diseases, such as ulcerative colitis. Today it is known that the metabolic syndrome attenuates severity of ulcerative colitis. Still, there is no evidence that different stages of metabolic syndrome alter the course of the ulcerative colitis. The aim of this study was to dissect out how progression of the metabolic syndrome impacted the biology of ulcerative colitis and severity of clinical presentation. Seventy-two patients (41 men and 31 women, 22-81 years old) were enrolled in this observational cross-sectional study. Concentrations of pro- and anti-inflammatory cytokines in serum and feces samples were measured and phenotype of colon infiltrating cells was analyzed. Patients in the terminal phase of the metabolic syndrome have clinically and pathohistologically more severe form of ulcerative colitis, which is followed by decreased concentrations of systemic galectin-1, increased values of systemic pro-inflammatory mediators and increased influx of lymphocytes in affected colon tissue. Our data suggest that reduced concentrations of galectin-1 and predomination of the pro-inflammatory mediators in patients with terminal stage of the metabolic syndrome enhance local chronic inflammatory response and subsequent tissue damage, and together point on important role of galectin-1 in immune response in ulcerative colitis patients with the metabolic syndrome.
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Colite Ulcerativa , Síndrome Metabólica , Adulto , Idoso , Idoso de 80 Anos ou mais , Anti-Inflamatórios/uso terapêutico , Colite Ulcerativa/tratamento farmacológico , Colo , Feminino , Humanos , Mucosa Intestinal , Masculino , Síndrome Metabólica/complicações , Pessoa de Meia-Idade , Adulto JovemRESUMO
Many traditional remedies represent potential candidates for integration with modern medical practice, but credible data on their activities are often scarce. For the first time, the anti-virulence potential and the safety for human use of the ethanol extracts of two medicinal plants, Persicaria maculosa (PEM) and Bistorta officinalis (BIO), have been addressed. Ethanol extracts of both plants exhibited anti-virulence activity against the medically important opportunistic pathogen Pseudomonas aeruginosa. At the subinhibitory concentration of 50 µg/mL, the extracts demonstrated a maximal inhibitory effect (approx. 50%) against biofilm formation, the highest reduction of pyocyanin production (47% for PEM and 59% for BIO) and completely halted the swarming motility of P. aeruginosa. Both extracts demonstrated better anti-quorum sensing and antibiofilm activities, and a better ability to interfere with LasR receptor, than the tested dominant extracts' constituents. The bioactive concentrations of the extracts were not toxic in the zebrafish model system. This study represents an initial step towards the integration of P. maculosa and B. officinalis for use in the treatment of Pseudomonas infections.
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Anti-Infecciosos/farmacologia , Extratos Vegetais/farmacologia , Polygonaceae/química , Virulência/efeitos dos fármacos , Antibacterianos/química , Antibacterianos/farmacologia , Anti-Infecciosos/química , Biofilmes/efeitos dos fármacos , Linhagem Celular , Bactérias Gram-Negativas/efeitos dos fármacos , Bactérias Gram-Negativas/fisiologia , Humanos , Testes de Sensibilidade Microbiana , Compostos Fitoquímicos/química , Compostos Fitoquímicos/farmacologia , Extratos Vegetais/química , Percepção de Quorum/efeitos dos fármacos , Transdução de SinaisRESUMO
BACKGROUND AND OBJECTIVES: The aim of the study was to determine systemic and fecal values of galectin-3 and pro- and anti-inflammatory cytokines in patients with CRC and the relationship with clinicopathological aspects. METHODS: Concentrations of galectin-3, TNF-α, TGF-ß, IL-10, and IL-1ß were analyzed in samples of blood and stool of 60 patients with CRC. RESULTS: Systemic concentration of TNF-α was significantly lower in patients with severe diseases (advanced TNM stage, nuclear grade, and poor histological differentiation) as in patients with more progressive CRC (lymph and blood vessel invasion, presence of metastasis). Fecal values of anti-inflammatory cytokines TGF-ß and IL-10 were increased in patients with severe stadium of CRC. Fecal concentration of Gal-3 was enhanced in CRC patients with higher nuclear grade, poor tumor tissue differentiation, advanced TNM stage, and metastatic disease. Gal-3/TNF-α ratio in sera and feces had a higher trend in patients with severe and advanced diseases. Positive correlation between fecal Gal-3 and disease severity, tumor progression, and biomarkers AFP and CEA, respectively, was also observed. CONCLUSIONS: Predomination of Gal-3 in patients with advanced diseases may implicate on its role in limiting ongoing proinflammatory processes. The fecal values of Gal-3 can be used as a valuable marker for CRC severity and progression.
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Galectina 3/metabolismo , Idoso , Idoso de 80 Anos ou mais , Antígeno Carcinoembrionário/sangue , Fezes/microbiologia , Feminino , Galectina 3/genética , Humanos , Interleucina-10/metabolismo , Masculino , Pessoa de Meia-Idade , Fator de Crescimento Transformador beta/metabolismo , Fator de Necrose Tumoral alfa/metabolismo , alfa-Fetoproteínas/metabolismoRESUMO
Neurocutaneous melanosis (NCM) is a rare, sporadic, congenital neuroectodermal dysplasia. Large congenital melanocytic nevi (CMN) can evolve in a certain percentage of patients to NCM. Meningeal deposits are benign, but can be prone to malignant transformation in some cases. We describe the case of an infant with asymptomatic NCM, and typical magnetic resonance imaging (MRI) findings. The diagnosis was established shortly after delivery, and the patient was followed for 60 months. At that time, the girl did not have any neurologic symptoms; she reached normal developmental milestones and did not show mental retardation and did not develop malignant melanoma; further follow-up will be needed, although there are no reliable guidelines as to the time range of follow up of asymptomatic NCM in the literature. We report the typical MRI signal abnormalities of the brain, and present a review of the literature regarding this rare and mysterious congenital disorder.
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Inflammatory bowel diseases (IBDs) are chronic, relapsing inflammatory diseases characterized by exacerbations and remissions of the gastrointestinal tract, clinically manifested as Crohn's disease and ulcerative colitis. The etiology of IBDs is considered to be multi factorial, comprising environmental, immune, microbial and genetic factors. Clinical signs may include abdominal pain, frequent bloody diarrheas, mucorrhea, vomiting, fever, fatigue or weight loss. Changes in the oral cavity often precede intestinal symptoms. Inflammatory bowel disease leads to a significant deterioration of oral health, which indicates that cooperation between the dentist and the gastroenterologist is necessary when considering patients' welfare. Patients with IBD have an altered immune response, but microorganisms of the oral cavity may also be responsible for its modification. This review paper discusses the correlation between the immune system and inflammatory bowel disease manifestations in the oral cavity.
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BACKGROUND: In pediatric epilepsy, health-related quality of life (HRQOL) may be affected across the physical, psychological, social, and school domains. Studies have shown that antiepileptic drugs (AEDs) could have a significant negative impact on HRQOL, but these findings are scarce and inconsistent. AIM: To evaluate the influence that the adverse effects of AEDs have on HRQOL in pediatric epilepsy. MATERIALS AND METHODS: A total of 75 children with epilepsy and at least one parent participated in this study. The Pediatric Quality of Life Inventory (PedsQL) was utilized to assess the HRQOL, while the Adverse Event Profile (AEP) was used to assess the presence and severity of the adverse effects of AEDs. RESULTS: Assessing the children's ratings, the AEP score significantly influenced the PedsQL based psychosocial functioning score (P < 0.02; partial ç2 = 0.07); and, assessing the parents' ratings, the AEP score significantly influenced both the PedsQL based physical functioning score (P < 0.02; partial ç2 = 0.07) as well as the PedsQL psychosocial functioning score (P < 0.001, partial ç2 = 0.30). CONCLUSION: The frequency and severity of AED-related adverse effects could significantly predict the lowered levels of HRQOL among children with epilepsy, in particular having a large impact on their psychosocial functioning.
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BACKGROUND & OBJECTIVES: Aluminum (Al) toxicity is closely linked to the pathogenesis of Alzheimer's disease (AD). This experimental study was aimed to investigate the active avoidance behaviour of rats after intrahippocampal injection of Al, and biochemical and immunohistochemical changes in three bilateral brain structures namely, forebrain cortex (FBCx), hippocampus and basal forebrain (BF). METHODS: Seven days after intra-hippocampal (CA1 sector) injection of AlCl3 into adult male Wistar rats they were subjected to two-way active avoidance (AA) tests over five consecutive days. Control rats were treated with 0.9% w/v saline. The animals were decapitated on the day 12 post-injection. The activities of acetylcholinesterase (AChE) and glucose-6-phosphate dehydrogenase (G6PDH) were measured in the FBCx, hippocampus and BF. Immunohistochemical staining was performed for transferrin receptors, amyloid ß and tau protein. RESULTS: The activities of both AChE and G6PDH were found to be decreased bilaterally in the FBCx, hippocampus and basal forebrain compared to those of control rats. The number of correct AA responses was reduced by AlCl3 treatment. G6PDH administered prior to AlCl 3 resulted in a reversal of the effects of AlCl3 on both biochemical and behavioural parameters. Strong immunohistochemical staining of transferrin receptors was found bilaterally in the FBCx and the hippocampus in all three study groups. In addition, very strong amyloid ß staining was detected bilaterally in all structures in AlCl3-treated rats but was moderate in G6PDH/AlCl3-treated rats. Strong tau staining was noted bilaterally in AlCl3-treated rats. In contrast, tau staining was only moderate in G6PDH/AlCl3-treated rats. INTERPRETATION & CONCLUSIONS: Our findings indicated that the G6PDH alleviated the signs of behavioural and biochemical effects of AlCl3-treatment suggesting its involvement in the pathogenesis of Al neurotoxicity and its potential therapeutic benefit. The present model could serve as a useful tool in AD investigations.
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Acetilcolinesterase/farmacologia , Alumínio/toxicidade , Região CA1 Hipocampal/citologia , Glucosefosfato Desidrogenase/farmacologia , Neurônios/efeitos dos fármacos , Fármacos Neuroprotetores/farmacologia , Alumínio/administração & dosagem , Alumínio/metabolismo , Peptídeos beta-Amiloides/metabolismo , Animais , Aprendizagem da Esquiva/efeitos dos fármacos , Glucosefosfato Desidrogenase/metabolismo , Imuno-Histoquímica , Masculino , Fármacos Neuroprotetores/metabolismo , Ratos , Ratos Wistar , Receptores da Transferrina/metabolismoRESUMO
Aluminium may have an important role in the aetiology/pathogenesis/precipitation of Alzheimer's disease. Because green tea (Camellia sinensis L.) reportedly has health-promoting effects in the central nervous system, we evaluated the effects of green tea leaf extract (GTLE) on aluminium chloride (AlCl3 ) neurotoxicity in rats. All solutions were injected into the cornu ammonis region 1 hippocampal region. We measured the performance of active avoidance (AA) tasks, various enzyme activities and total glutathione content (TGC) in the forebrain cortex (FbC), striatum, basal forebrain (BFb), hippocampus, brain stem and cerebellum. AlCl3 markedly reduced AA performance and activities of cytochrome c oxidase (COX) and acetylcholinesterase (AChE) in all regions. It decreased TGC in the FbC, striatum, BFb, hippocampus, brain stem and cerebellum, and increased superoxide dismutase activity in the FbC, cerebellum and BFb. GTLE pretreatment completely reversed the damaging effects of AlCl3 on AA and superoxide dismutase activity, markedly corrected COX and AChE activities, and moderately improved TGC. GTLE alone increased COX and AChE activities in almost all regions. GTLE reduces AlCl3 neurotoxicity probably via antioxidative effects and improves mitochondrial and cholinergic synaptic functions through the actions of (-)-epigallocatechin gallate and (-)-epicatechin, compounds most abundantly found in GTLE. Our results suggest that green tea might be beneficial in Alzheimer's disease.
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Compostos de Alumínio/toxicidade , Encéfalo/efeitos dos fármacos , Cloretos/toxicidade , Síndromes Neurotóxicas/tratamento farmacológico , Chá/química , Acetilcolinesterase/metabolismo , Cloreto de Alumínio , Doença de Alzheimer , Animais , Aprendizagem da Esquiva/efeitos dos fármacos , Região CA1 Hipocampal/efeitos dos fármacos , Camellia sinensis/química , Catequina/análogos & derivados , Catequina/farmacologia , Glutationa/metabolismo , Masculino , Oxirredução , Ratos , Ratos Wistar , Superóxido Dismutase/metabolismoRESUMO
Ionizing radiation in differentiated thyroid cancer (DTC) patients treated with radioiodine (131-I) produces reactive oxygen species (ROS), which could induce oxidative stress with disturbance of redox balance. The aim of this study was to evaluate oxidative stress in DTC patients treated with 3.7 or 5.5 GBq of 131-I using values for serum malondialdehyde (MDA, a marker of oxidative stress), uric acid (to determine antioxidant status) and total antioxidative status (TAS). The study population included 20 DTC patients and 20 healthy controls. Significant differences in MDA concentrations were found between DTC patients before 131-I therapy and control subjects (p = 0.001), while TAS values were similar in both populations (p > 0.05). There was a negative correlation between MDA concentrations and TAS in the DTC group before therapy (R2 = 0.2973, p = 0.013). Three days after 131-I therapy, MDA concentrations were higher than the pretreatment values (3.36 +/- 1.69 nmol/mL vs. 2.93 +/- 1.31 nmol/mL; p = 0.006), while serum uric acid concentrations declined progressively from 341.0 +/- 80.39 micromol/L to 304.25 +/- 77.25 micromol/L (p = 0.026) in 3 days and 291.2 +/- 88.86 micromol/L (p = 0.009) in 7 days after 131-I therapy. There was no dose-dependent effect on MDA, or uric acid concentrations and TAS. Thus, 131-I therapy in DTC patients induced oxidative stress, which was accompanied by a simultaneous and extended reduction in uric acid concentration, but without significant disturbances in TAS. This is the first study that evaluated TAS capacity in DTC patients before and 7 days after 131-I therapy. The relatively stabile TAS values in these patients indicated a good protection from oxidative stress induced by high doses of ionizing radiation.
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Adenocarcinoma Folicular/radioterapia , Carcinoma Papilar/radioterapia , Radioisótopos do Iodo/uso terapêutico , Estresse Oxidativo , Neoplasias da Glândula Tireoide/radioterapia , Antioxidantes/metabolismo , Estudos de Casos e Controles , Feminino , Humanos , Peroxidação de Lipídeos/efeitos da radiação , Masculino , Malondialdeído/metabolismo , Pessoa de Meia-Idade , Espécies Reativas de Oxigênio/metabolismo , Ácido Úrico/metabolismoRESUMO
Ethnomedicinal records have long mentioned the historical usage of Alchemilla vulgaris L. in folk medicine, particularly for the treatment of gynecological issues. Building on this ethnomedicinal knowledge regarding female illnesses, the aim of this research was to evaluate the impact of ethanolic extract of A. vulgaris on mouse breast cancer cells (4T1) in vitro and in vivo, in addition to its effect on the immune compartment in the tumor microenvironment. Behind viability decrease of 4T1 cells induced by treatment with A. vulgaris extract was strong inhibition of cell proliferation accompanied by caspase-dependent apoptosis and autophagic cell death. Observed changes in 4T1 cell culture after treatment were well orchestrated and led to a reduction in metastatic potential through weakened adhesion, invasion, migration, and colony-forming abilities in vitro. Enhanced intracellular production of reactive oxygen and nitrogen species promoted by the treatment might interfere with all the observed effects. Apart from the direct effect on tumor cells, the A. vulgaris extract significantly reduced tumor growth in the solid orthotropic mammary carcinoma model through restitution of efficient local and systemic immune response reflected in enhanced antigen-presenting potential of dendritic cells (DCs) as well as the extent and activity of effector T cells.
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Background/Objectives:Persicaria hydropiper (L.) Delarbre, commonly known as water pepper, possesses multifunctional potential. Our research focuses on its complex phenolic composition, bioactivity, safety evaluation and utilization in a sustainable manner. Moreover, a survey was conducted among the Serbian population to gain insight into the attitude towards traditional wild-growing herbs (i.e., P. hydropiper), the level of familiarity with their zero-waste culture, and to assess eating behaviors. Methods: A survey was conducted with 168 participants to assess attitudes towards traditional herbs, zero-waste culture, and eating behaviors, while cytotoxicity, in vivo toxicity, chemical analysis of secondary metabolites, and probiotic viability assays were performed to evaluate the effects of the PH extract. Results: Notably, P. hydropiper extract (PH) exhibits a diverse phenolic profile, including quinic acid (3.68 ± 0.37 mg/g DW), gallic acid (1.16 ± 0.10 mg/g DW), quercetin (2.34 ± 0.70 mg/g DW) and kaempferol-3-O-glucoside (4.18 ± 0.17 mg/g DW). These bioactive compounds have been linked to anticancer effects. The tested extract demonstrated a cytotoxic effect on the human neuroblastoma cell line, opening questions for the further exploration of its mechanisms for potential therapeutic applications. Based on the toxicity assessment in the Artemia salina model, the PH could be characterized with good safety, especially for the lower concentrations (LC50 = 0.83 mg/mL, 24 h). The utilization of the spent PH material supports the viability of psychobiotic strains (up to 9.26 ± 0.54 log CFU/mL). Based on the conducted survey, 63.7% (n = 107) of respondents mainly prefer traditional instead of imported herbs. The respondents were skeptical about zero-waste edibles; 51.2% (n = 86) would not try them, and a bit more than half were not familiar with zero-waste culture (57.7%; n = 97). Only 8.3% (n = 14) followed a flexitarian diet as a dietary pattern. Conclusions: The use of underutilized traditional plants and their spent material could potentially contribute to the acceptance of a zero-waste culture in Serbia. Reinventing the use of neglected traditional plants and addressing ways for spent material valorization could contribute to the acceptance of a zero-waste strategy and encourage healthier eating behavior.
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Extratos Vegetais , Plantas Comestíveis , Plantas Medicinais , Humanos , Extratos Vegetais/farmacologia , Masculino , Feminino , Plantas Medicinais/química , Sérvia , Plantas Comestíveis/química , Animais , Adulto , Polygonaceae/química , Pessoa de Meia-Idade , Linhagem Celular Tumoral , Adulto Jovem , Fenóis/análise , Fenóis/farmacologia , Artemia/efeitos dos fármacos , Inquéritos e QuestionáriosRESUMO
This case report presents a unique instance of small bowel perforation caused by solitary metastasis from renal cell carcinoma (RCC), a rare and complex clinical scenario. The patient, a 59-year-old male with a history of RCC treated with nephrectomy four years prior, presented with acute abdomen symptoms. Emergency diagnostic procedures identified a significant lesion in the small intestine. Surgical intervention revealed a perforated jejunal segment due to metastatic RCC. Postoperatively, the patient developed complications, including pneumonia and multi-organ failure, leading to death 10 days after surgery. Histopathological analysis confirmed the metastatic nature of the lesion. This case underscores the unpredictable nature of RCC metastasis and highlights the need for vigilance in post-nephrectomy patients. The rarity of small bowel involvement by RCC metastasis, particularly presenting as perforation, makes this case a significant contribution to medical literature, emphasizing the challenges in the diagnosis and management of such atypical presentations.