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1.
Chirurgia (Bucur) ; 119(3): 260-271, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38982904

ABSTRACT

Background: Incisional hernias are predominantly treated through open or laparoscopic surgery, with each method influencing recovery and patient-reported outcomes. This underscores the need for reliable assessment tools such as the EuraHS-QoL questionnaire to evaluate quality of life after surgery. Methods: This prospective single-center study was aimed at evaluating aestethic outcomes and patient satisfaction following laparoscopic versus open hernia repair. It involved 222 patients categorized by type of approach. The EuraHS-QoL questionnaire was used preoperatively and at 1- and 3-months post-surgery, with data analysis performed using Origin Pro 2018 and SPSS software version 28.0. Results: Among the participants, 152 were females and 70 males, with 78% undergoing open surgery and 22% laparoscopic. Findings revealed superior patient outcomes with laparoscopic repair in terms of pain management, daily activities, and aesthetic satisfaction. Patients reported significantly lower pain levels and fewer restrictions in daily activities post-laparoscopic surgery. While initial postoperative cosmetic results favored laparoscopic methods, the perceived differences in abdominal shape diminished over time. Conclusions: Laparoscopic repair significantly improves quality of life compared to open surgery, as shown by EuraHS-QoL scores. These results support the use of laparoscopic techniques in appropriate cases due to their benefits in pain reduction and faster functional recovery.


Subject(s)
Esthetics , Herniorrhaphy , Incisional Hernia , Laparoscopy , Patient Satisfaction , Quality of Life , Humans , Female , Laparoscopy/methods , Male , Prospective Studies , Herniorrhaphy/methods , Incisional Hernia/surgery , Middle Aged , Treatment Outcome , Surveys and Questionnaires , Aged , Adult
2.
Medicina (Kaunas) ; 60(6)2024 May 29.
Article in English | MEDLINE | ID: mdl-38929515

ABSTRACT

Background and Objectives: The purpose of the study was to analyze the relationships among several clinical factors and also the tumor topography and surgical strategies used in patients with colorectal cancer. Materials and Methods: We designed an analytical, observational, retrospective study that included patients admitted to our emergency surgical department and diagnosed with colorectal cancer. The study group inclusion criteria were: patients admitted during 2020-2022; patients diagnosed with colorectal cancer (including the ileocecal valve); patients who benefited from a surgical procedure, either emergency or elective. Results: In our study group, consisting of 153 patients, we accounted for 56.9% male patients and 43.1% female patients. The most common clinical manifestations were pain (73.2% of the study group), followed by abdominal distension (69.3% of the study group) and absence of intestinal transit (38.6% of the study group). A total of 69 patients had emergency surgery (45.1%), while 84 patients (54.9%) benefited from elective surgery. The most frequent topography of the tumor was the sigmoid colon, with 19.60% of the patients, followed by the colorectal junction, with 15.68% of the patients, and superior rectum and inferior rectum, with 11.11% of the patients in each subcategory. The most frequent type of procedure was right hemicolectomy (21.6% of the study group), followed by rectosigmoid resection (20.9% of the study group). The surgical procedure was finished by performing an anastomosis in 49% of the patients, and an ostomy in 43.1% of the patients, while for 7.8% of the patients, a tumoral biopsy was performed. Conclusions: Colorectal cancer remains one of the most frequent cancers in the world, with a heavy burden that involves high mortality, alterations in the quality of life of patients and their families, and also the financial costs of the medical systems.


Subject(s)
Colorectal Neoplasms , Elective Surgical Procedures , Humans , Male , Female , Colorectal Neoplasms/surgery , Retrospective Studies , Aged , Middle Aged , Cohort Studies , Aged, 80 and over , Adult , Emergencies
3.
Physiol Behav ; 283: 114622, 2024 Sep 01.
Article in English | MEDLINE | ID: mdl-38945189

ABSTRACT

INTRODUCTION: The roles of metabolic signals, including Glucagon-like peptide 1 (GLP-1), have been implicated in multiple domains outside metabolic regulation. There is a growing interest in repurposing Glucagon-like peptide 1 receptor agonists (GLP-1RAs) as therapeutics for motivation and reward-related behavioural disturbances. Herein, we aim to systematically review the extant evidence on the potential effects of GLP-1RAs on the reward system. METHODS: The study followed PRISMA guidelines using databases such as OVID, PubMed, Scopus, and Google Scholar. The search focused on "Reward Behavior" and "Glucagon Like Peptide 1 Receptor Agonists" and was restricted to human studies. Quality assessment achieved by the NIH's Quality Assessment of Controlled Intervention Studies RESULTS: GLP-1RAs consistently reduced energy intake and influenced reward-related behaviour. These agents have been associated with decreased neurocortical activation in response to higher rewards and food cues, particularly high-calorie foods, and lowered caloric intake and hunger levels. DISCUSSION: GLP-1RAs show promise in addressing reward dysfunction linked to food stimuli, obesity, and T2DM. They normalize insulin resistance, and might also modulate dopaminergic signalling and reduce anhedonia. Their effects on glycemic variability and cravings suggest potential applications in addiction disorders.


Subject(s)
Glucagon-Like Peptide 1 , Glucagon-Like Peptide-1 Receptor , Reward , Humans , Glucagon-Like Peptide-1 Receptor/agonists , Glucagon-Like Peptide 1/agonists , Animals
4.
Chirurgia (Bucur) ; 119(2): 136-155, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38743828

ABSTRACT

Background: Colorectal cancer (CRC) exhibits molecular and morphological diversity, involving genetic, epigenetic alterations, and disruptions in signaling pathways. This necessitates a comprehensive review synthesizing recent advancements in molecular mechanisms, established biomarkers, as well as emerging ones like CDX2 for enhanced CRC assessment. Material and Methods: This review analyzes the last decade's literature and current guidelines to study CRC's molecular intricacies. It extends the analysis beyond traditional biomarkers to include emerging ones like CDX2, examining their interaction with carcinogenic mechanisms and molecular pathways, alongside reviewing current testing methodologies. Results: A multi-biomarker strategy, incorporating both traditional and emerging biomarkers like CDX2, is crucial for optimizing CRC management. This strategy elucidates the complex interaction between biomarkers and the tumor's molecular pathways, significantly influencing prognostic evaluations, therapeutic decision-making, and paving the way for personalized medicine in CRC. Conclusions: This review proposes CDX2 as an emerging prognostic biomarker and emphasizes the necessity of thorough molecular profiling for individualized treatment strategies. By enhancing CRC treatment approaches and prognostic evaluation, this effort marks a step forward in precision oncology, leveraging an enriched understanding of tumor behavior.


Subject(s)
Biomarkers, Tumor , CDX2 Transcription Factor , Colorectal Neoplasms , Membrane Proteins , Microsatellite Instability , Proto-Oncogene Proteins B-raf , Proto-Oncogene Proteins p21(ras) , Humans , Colorectal Neoplasms/genetics , Colorectal Neoplasms/pathology , Colorectal Neoplasms/metabolism , Colorectal Neoplasms/classification , CDX2 Transcription Factor/metabolism , CDX2 Transcription Factor/genetics , Biomarkers, Tumor/genetics , Biomarkers, Tumor/metabolism , Proto-Oncogene Proteins p21(ras)/genetics , Proto-Oncogene Proteins B-raf/genetics , Prognosis , Membrane Proteins/genetics , Membrane Proteins/metabolism , GTP Phosphohydrolases/genetics , GTP Phosphohydrolases/metabolism , DNA Mismatch Repair , Predictive Value of Tests , Precision Medicine
5.
Maedica (Bucur) ; 19(1): 195-200, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38736918

ABSTRACT

Inguinoscrotal hernia (ISH) is an entity for which treatment is under debate. Open surgery is the standard approach, but the laparoscopic technique has a great outcome when used by experienced surgeons. Seroma is one of the complications following laparoscopic hernia repair for these scrotal hernias, which is due to the large hernia sac, usually transected, leaving in place a remnant of the sac. Conservative measures can be applied for the treatment of seroma; however, in symptomatic cases, puncture and aspiration of fluid are recommended. Sometimes, these seromas can reach a large size and require surgery to remove the remnant sac. Herein, we report the case of a 49-year-old male with a large seroma that occurred four days after the laparoscopic approach - total extraperitoneal repair (TEP) for inguinoscrotal hernia. Conservative measures failed, and because the symptoms were not alleviated, reintervention was opted for. The distal sac was excised and the patient recovered uneventfully. The six-month follow-up did not show any recurrence of the hernia or seroma. We emphasize the importance of sac management in large ISH cases and discuss seromas after laparoscopic hernia repair in such instances.

6.
Diagnostics (Basel) ; 14(10)2024 May 15.
Article in English | MEDLINE | ID: mdl-38786321

ABSTRACT

Encoded by the CDX2 homeobox gene, the CDX2 protein assumes the role of a pivotal transcription factor localized within the nucleus of intestinal epithelial cells, orchestrating the delicate equilibrium of intestinal physiology while intricately guiding the precise development and differentiation of epithelial tissue. Emerging research has unveiled that positive immunohistochemical expression of this protein shows that the CDX2 gene exerts a potent suppressive impact on tumor advancement in colorectal cancer, impeding the proliferation and distant dissemination of tumor cells, while the inhibition or suppression of CDX2 frequently correlates with aggressive behavior in colorectal cancer. In this study, we conducted an immunohistochemical assessment of CDX2 expression on a cohort of 43 intraoperatively obtained tumor specimens from patients diagnosed with colon cancer at Colțea Clinical Hospital in Bucharest, between April 2019 and December 2023. Additionally, we shed light on the morphological diversity within colon tumors, uncovering varying differentiation grades within the same tumor, reflecting the variations in CDX2 expression as well as the genetic complexity underlying these tumors. Based on the findings, we developed an innovative immunohistochemical scoring system that addresses the heterogeneous nature of colon tumors. Comprehensive statistical analysis of CDX2 immunohistochemical expression unveiled significant correlations with known histopathological parameters such as tumor differentiation grades (p-value = 0.011) and tumor budding score (p-value = 0.002), providing intriguing insights into the complex involvement of the CDX2 gene in orchestrating tumor progression through modulation of differentiation processes, and highlighting its role in metastatic predisposition. The compelling correlation identified between CDX2 expression and conventional histopathological parameters emphasizes the prognostic significance of the CDX2 biomarker in colon cancer. Moreover, our novel immunohistochemical scoring system reveals a distinct subset of colon tumors exhibiting reserved prognostic outcomes, distinguished by their "mosaic" CDX2 expression pattern.

7.
J Surg Case Rep ; 2024(4): rjae232, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38605699

ABSTRACT

Cryptorchidism is defined as the extra-scrotal position of the testes. It is a common disorder in male children, but rarely in adult patients. The association of cryptorchidism with hernia is a common finding in childhood, but is not frequent in adults or the elderly. Herein, we report a series of three cases (28-, 24-, and 34-year-old men) of adult inguinal hernia combined with cryptorchidism successfully managed by laparoscopic surgery under the same operative view. Laparoscopic transabdominal preperitoneal repair and orchiectomy were performed in all patients. No complications occurred in the postoperative period, and the patients were discharged on the first or second postoperative day. Pathological examination of the specimens revealed atrophic testes without malignancy. No hernia recurrence was observed during follow-up. The laparoscopic approach in the combined pathology of inguinal hernia and cryptorchidism is feasible in adult patients and has multiple advantages in terms of diagnosis and management.

8.
Front Public Health ; 12: 1330801, 2024.
Article in English | MEDLINE | ID: mdl-38362220

ABSTRACT

Introduction: The online misinformation might undermine the vaccination efforts. Therefore, given the fact that no study specifically analyzed online vaccine related content written in Romanian, the main objective of the study was to detect and evaluate tweets related to vaccines and written in Romanian language. Methods: 1,400 Romanian vaccine related tweets were manually classified in true, neutral and fake information and analyzed based on wordcloud representations, a correlation analysis between the three classes and specific tweet characteristics and the validation of several predictive machine learning algorithms. Results and discussion: The tweets annotated as misinformation showed specific word patterns and were liked and reshared more often as compared to the true and neutral ones. The validation of the machine learning algorithms yielded enhanced results in terms of Area Under the Receiver Operating Characteristic Curve Score (0.744-0.843) when evaluating the Support Vector Classifier. The predictive model estimates in a well calibrated manner the probability that a specific Twitter post is true, neutral or fake. The current study offers important insights regarding vaccine related online content written in an Eastern European language. Future studies must aim at building an online platform for rapid identification of vaccine misinformation and raising awareness for the general population.


Subject(s)
Communication , Vaccines , Humans , Romania , Language , Algorithms
9.
Arq Neuropsiquiatr ; 82(2): 1-10, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38325385

ABSTRACT

BACKGROUND: Autoimmune encephalitis (AE) consists of a group of acquired diseases that affect the central nervous system. A myriad of phenotypes may be present at the onset. Due to the heterogeneity of clinical presentations, it is difficult to achieve uniformity for the diagnostic and therapeutic processes and follow-up strategies. OBJECTIVE: To describe a series of patients diagnosed with AE in a resource-limited public hospital in southern Brazil and to analyze therapeutics and outcomes. METHODS: We retrospectively reviewed the electronic medical records of patients diagnosed with AE at the Hospital de Clínicas de Porto Alegre from 2014 to 2022. Data collected included clinical presentation, neuroimaging, cerebrospinal fluid testings, electroencephalogram, autoantibodies, treatments, outcomes, follow-up time, degree of neurological impairment, and mortality. RESULTS: Data from 17 patients were retrieved. Eleven cases were classified as definite AE and 6 as possible AE. Autoantibodies were identified in 9 patients. Timing for diagnosis was impacted by the high costs associated with autoantibody testing. Most patients became functionally dependent (82.4%) and most survivors remained with autoimmune-associated epilepsy (75%). Five patients died during hospitalization, and one after a 26-month of follow-up. CONCLUSION: In this resource-limited hospital, patients with AE had a worse clinical outcome than that previously described in the literature. Development of epilepsy during follow-up and mortality were greater, whilst functional outcome was inferior. Autoantibody testing was initially denied in most patients, which impacted the definitive diagnosis and the use of second-line therapies.


ANTECEDENTES: A encefalite autoimune (EA) consiste em um grupo de doenças adquiridas que afetam o sistema nervoso central. OBJETIVO: Descrever uma série de pacientes diagnosticados com EA em um contexto de atenção terciária à saúde com recursos limitados e analisar a terapêutica e os resultados. MéTODOS: Revisamos retrospectivamente os prontuários eletrônicos de pacientes diagnosticados com EA no Hospital de Clínicas de Porto Alegre de 2014 a 2022. Os dados coletados incluíram apresentação clínica, neuroimagem, exames de líquido cefalorraquidiano, eletroencefalograma, autoanticorpos, tratamentos, resultados, tempo de acompanhamento, grau de comprometimento neurológico e mortalidade. RESULTADOS: Dados de 17 pacientes foram coletados. Onze casos foram classificados como EA definitivo e seis como EA possível. Autoanticorpos foram identificados em nove pacientes. O tempo para o diagnóstico foi afetado pelos altos custos associados ao teste de autoanticorpos. A maioria dos pacientes tornou-se funcionalmente dependente (82,4%), e a maioria dos sobreviventes permaneceu com epilepsia autoimune associada (75%). Cinco pacientes faleceram durante a internação, e um após 26 meses de seguimento. CONCLUSãO: No hospital em questão, os pacientes com EA tiveram um desfecho clínico pior do que o previamente descrito na literatura. O desenvolvimento de epilepsia durante o acompanhamento e a mortalidade foram maiores, enquanto o desfecho funcional foi inferior. Os testes de autoanticorpos foram inicialmente negados para a maioria dos pacientes, o que impactou o diagnóstico definitivo e o uso de terapias de segunda linha.


Subject(s)
Autoimmune Diseases of the Nervous System , Encephalitis , Epilepsy , Hashimoto Disease , Humans , Retrospective Studies , Public Health , Hashimoto Disease/diagnosis , Hashimoto Disease/therapy , Autoantibodies
11.
Arq. neuropsiquiatr ; 82(2): s00441779054, 2024. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1550045

ABSTRACT

Abstract Background Autoimmune encephalitis (AE) consists of a group of acquired diseases that affect the central nervous system. A myriad of phenotypes may be present at the onset. Due to the heterogeneity of clinical presentations, it is difficult to achieve uniformity for the diagnostic and therapeutic processes and follow-up strategies. Objective To describe a series of patients diagnosed with AE in a resource-limited public hospital in southern Brazil and to analyze therapeutics and outcomes. Methods We retrospectively reviewed the electronic medical records of patients diagnosed with AE at the Hospital de Clínicas de Porto Alegre from 2014 to 2022. Data collected included clinical presentation, neuroimaging, cerebrospinal fluid testings, electroencephalogram, autoantibodies, treatments, outcomes, follow-up time, degree of neurological impairment, and mortality. Results Data from 17 patients were retrieved. Eleven cases were classified as definite AE and 6 as possible AE. Autoantibodies were identified in 9 patients. Timing for diagnosis was impacted by the high costs associated with autoantibody testing. Most patients became functionally dependent (82.4%) and most survivors remained with autoimmune-associated epilepsy (75%). Five patients died during hospitalization, and one after a 26-month of follow-up. Conclusion In this resource-limited hospital, patients with AE had a worse clinical outcome than that previously described in the literature. Development of epilepsy during follow-up and mortality were greater, whilst functional outcome was inferior. Autoantibody testing was initially denied in most patients, which impacted the definitive diagnosis and the use of second-line therapies.


Resumo Antecedentes A encefalite autoimune (EA) consiste em um grupo de doenças adquiridas que afetam o sistema nervoso central. Objetivo Descrever uma série de pacientes diagnosticados com EA em um contexto de atenção terciária à saúde com recursos limitados e analisar a terapêutica e os resultados. Métodos Revisamos retrospectivamente os prontuários eletrônicos de pacientes diagnosticados com EA no Hospital de Clínicas de Porto Alegre de 2014 a 2022. Os dados coletados incluíram apresentação clínica, neuroimagem, exames de líquido cefalorraquidiano, eletroencefalograma, autoanticorpos, tratamentos, resultados, tempo de acompanhamento, grau de comprometimento neurológico e mortalidade. Resultados Dados de 17 pacientes foram coletados. Onze casos foram classificados como EA definitivo e seis como EA possível. Autoanticorpos foram identificados em nove pacientes. O tempo para o diagnóstico foi afetado pelos altos custos associados ao teste de autoanticorpos. A maioria dos pacientes tornou-se funcionalmente dependente (82,4%), e a maioria dos sobreviventes permaneceu com epilepsia autoimune associada (75%). Cinco pacientes faleceram durante a internação, e um após 26 meses de seguimento. Conclusão No hospital em questão, os pacientes com EA tiveram um desfecho clínico pior do que o previamente descrito na literatura. O desenvolvimento de epilepsia durante o acompanhamento e a mortalidade foram maiores, enquanto o desfecho funcional foi inferior. Os testes de autoanticorpos foram inicialmente negados para a maioria dos pacientes, o que impactou o diagnóstico definitivo e o uso de terapias de segunda linha.

12.
Nanomaterials (Basel) ; 13(22)2023 Nov 09.
Article in English | MEDLINE | ID: mdl-37999275

ABSTRACT

The aim of this work is to establish the Oxygen Reduction Reaction (ORR) activity of self-standing electrospun carbon fiber catalysts obtained from different metallic salt/lignin solutions. Through a single-step electrospinning technique, freestanding carbon fiber (CF) electrodes embedded with various metal nanoparticles (Co, Fe, Pt, and Pd), with 8-16 wt% loadings, were prepared using organosolv lignin as the initial material. These fibers were formed from a solution of lignin and ethanol, into which the metallic salt precursors were introduced, without additives or the use of toxic reagents. The resulting non-woven cloths were thermostabilized in air and then carbonized at 900 °C. The presence of metals led to varying degrees of porosity development during carbonization, improving the accessibility of the electrolyte to active sites. The obtained Pt and Pd metal-loaded carbon fibers showed high nanoparticle dispersion. The performance of the electrocatalyst for the oxygen reduction reaction was assessed in alkaline and acidic electrolytes and compared to establish which metals were the most suitable for producing carbon fibers with the highest electrocatalytic activity. In accordance with their superior dispersion and balanced pore size distribution, the carbon fibers loaded with 8 wt% palladium showed the best ORR activity, with onset potentials of 0.97 and 0.95 V in alkaline and acid media, respectively. In addition, this electrocatalyst exhibits good stability and selectivity for the four-electron energy pathway while using lower metal loadings compared to commercial catalysts.

14.
J Clin Med ; 12(15)2023 Jul 26.
Article in English | MEDLINE | ID: mdl-37568321

ABSTRACT

The objectives of this article are to present an original surgical procedure for the temporary or definitive resolution of hydrocephalus, in the case of repeated failure of standard treatment techniques, and to present a case that was resolved using this surgical technique. MATERIALS AND METHODS: We present the case of a 20-year-old male patient with congenital hydrocephalus who underwent a number of 39 shunt revisions, given the repetitive dysfunctions of various techniques (ventriculo-peritoneal shunt, ventriculo-cardiac shunt). The patient was evaluated with the ventricular catheter externalized at the distal end and it was necessary to find an emergency surgical solution, considering the imminent risk of meningitis. The patient was also associated with the diagnosis of acute lithiasic cholecystitis. RESULTS AND DISCUSSIONS: The final chosen solution, right ventriculo-venous drainage using the cephalic vein, was a temporary surgical solution, but there are signs that this procedure can provide long-term ventricular drainage. CONCLUSIONS: Transcephalic ventriculo-subclavian drainage represents an alternative technical option, which can be used when established options become ineffective.

15.
Angiol. (Barcelona) ; 75(4): 228-241, Juli-Agos. 2023. ilus, tab
Article in Spanish | IBECS | ID: ibc-223703

ABSTRACT

La disección aórtica representa una afección relativamente poco común pero potencialmente mortal que se debe a un desgarro en la capa íntima de la arteria aorta o sangrado dentro de su pared, lo que da como resultado una separación de las capas de esta. Se han identificado varios factores de riesgo y comparten los mismos que para otras enfermedades cardiovasculares, como la edad, la hipertensión arterial, la dislipidemia y los trastornos genéticos del tejido conectivo. Es muy importante que el clínico pueda realizar un diagnóstico oportuno y un tratamiento adecuado en los pacientes afectados. El tipo de tratamiento depende de la extensión y de la localización de la disección. La reparación quirúrgica abierta suele ser la más usada para aquellas en las que están involucradas la aorta ascendente y el arco aórtico; por otro lado, la intervención endovascular está recomendada para las disecciones de la aorta descendente, que suelen ser complicadas. En este trabajo se revisará la epidemiología, la fisiopatología, las manifestaciones clínicas y finalmente el manejo de la disección aórtica.(AU)


Aortic dissection represents a relatively rare but highly fatal condition that is due to a tear in the intimal layer ofthe aortic artery or bleeding within its wall, resulting in a separation of its layers. Several risk factors have beenidentifi ed and share the same as for other cardiovascular diseases such as age, high blood pressure, dyslipidemiaand genetic disorders of connective tissue.It is very important that the clinician can make a timely diagnosis and appropriate treatment in patients affectedby it; the type of treatment depends on the extent and location of the dissection. open surgical repair is usuallythe most used for those that involve the ascending aorta and the aortic arch, on the other hand, endovascularintervention is recommended for dissections of the descending aorta that are usually complicated.In this work, the epidemiology, pathophysiology, clinical manifestations and finally the management of aorticdissection will be reviewed.(AU)


Subject(s)
Humans , Aortic Dissection/diagnosis , Aortic Dissection/therapy , Aortic Dissection/surgery , Aorta/injuries , Aortic Dissection/epidemiology , Aortic Dissection/physiopathology
16.
Biotechnol Lett ; 45(9): 1209-1222, 2023 Sep.
Article in English | MEDLINE | ID: mdl-37308681

ABSTRACT

The development of alternative therapeutic treatments based on the use of medicinal and aromatic plants, such as Juniper communis L., has aroused interest in the medical field to find new alternatives to conventional therapeutic treatments, which have shown problems related to bacterial resistance, high costs, or sustainability in their production. The present work describes the use of hydrogels based on sodium alginate and carboxymethyl cellulose, with combinations of juniperus leaves and berry extracts, in order to characterize their chemical characteristics, antibacterial activity, tissue adhesion test, cytotoxicity in the L929 cell line, and their effects on an in vivo model in mice to maximize the use of these materials in the healthcare field. Overall, an adequate antibacterial potential against S. aureus, E. coli and P. vulgaris was obtained with doses above 100 mg.mL-1 of hydrogels. Likewise, low cytotoxicity in hydrogels combined with extracts has been identified according to the IC50 value at 17.32 µg.mL-1, compared to the higher cytotoxic activity expressed by the use of control hydrogels with a value at 11.05 µg.mL-1. Moreover, in general, the observed adhesion was high to different tissues, showing its adequate capacity to be used in different tissue typologies. Furthermore, the invivo results have not shown erythema, edema, or other complications related to the use of the proposed hydrogels. These results suggest the feasibility of using these hydrogels in biomedical applications given the observed safety.


Subject(s)
Bacterial Infections , Hydrogels , Mice , Animals , Hydrogels/pharmacology , Hydrogels/chemistry , Escherichia coli , Staphylococcus aureus , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/chemistry
17.
Materials (Basel) ; 16(9)2023 Apr 23.
Article in English | MEDLINE | ID: mdl-37176194

ABSTRACT

Soldering processes are applied in the fabrication of electronic circuits used in most modern domestic and industrial technologies. This article aims to introduce a new soldering technology based on the microwave joining of copper materials used in electronic applications. The study was focused on microwave technology used as the thermal source for soldering. A simulation model of temperature distributions in copper plates with overall dimensions of 50 × 10 × 0.8 mm was developed in order to determine the necessary microwave power for soldering. For 270 °C simulated on the surface of copper plates, the microwave-injected power was determined to be 598.89 W. An experimental program for 600, 650, 700, and 750 W was set in order to achieve soldering of copper plates in less than 1 min. Soldered copper plates were subject to electrical resistance measurements being obtained with variations up to ±1.5% of the initial electrical resistance of the base materials. The quality of joints has also been analyzed through microscopy after the soldering process. In addition, mechanical properties were determined using a universal testing machine. The results have shown similar behavior of the samples layered with SAC on the one-side and double-side but also a significantly lower force before breaking for one-side-layered samples. An economic analysis was performed and the results obtained have shown that in terms of energy efficiency and total costs for microwave soldering compared with manual soldering, microwave soldering is cost-effective for industrial processing.

18.
Medicina (Kaunas) ; 59(2)2023 Jan 26.
Article in English | MEDLINE | ID: mdl-36837431

ABSTRACT

Background and Objectives: This study aimed to assess the impact of clinical prognostic factors and propose a prognostic score that aids the clinician's decision in estimating the risk for patients in clinical practice. Materials and Methods: The study included 195 patients diagnosed with ovarian adenocarcinoma. The therapeutic strategy involved multidisciplinary decisions: surgery followed by adjuvant chemotherapy (80%), neoadjuvant chemotherapy followed by surgery (16.4%), and only chemotherapy in selected cases (3.6%). Results: After a median follow-up of 68 months, in terms of progression-free survival (PFS) and overall survival (OS), Eastern Cooperative Oncology Group (ECOG) performance status of 1 and 2 vs. 0 (hazard ratio-HR = 2.71, 95% confidence interval-CI, 1.96-3.73, p < 0.001 for PFS and HR = 3.19, 95%CI, 2.20-4.64, p < 0.001 for OS), menopausal vs. premenopausal status (HR = 2.02, 95%CI, 1.35-3,0 p < 0.001 and HR = 2.25, 95%CI = 1.41-3.59, p < 0.001), ascites (HR = 1.95, 95%CI 1.35-2.80, p = 0.03, HR = 2.31, 95%CI = 1.52-3.5, p < 0.007), residual disease (HR = 5.12, 95%CI 3.43-7.65, p < 0.0001 and HR = 4.07, 95%CI = 2.59-6.39, p < 0.0001), and thrombocytosis (HR = 2.48 95%CI = 1.72-3.58, p < 0.0001, HR = 3.33, 95%CI = 2.16-5.13, p < 0.0001) were associated with a poor prognosis. An original prognostic score including these characteristics was validated using receiver operating characteristic (ROC) curves (area under the curve-AUC = 0.799 for PFS and AUC = 0.726 for OS, p < 0.001). The median PFS for patients with none, one, two, three, or four (or more) prognostic factors was not reached, 70, 36, 20, and 12 months, respectively. The corresponding median overall survival (OS) was not reached, 108, 77, 60, and 34 months, respectively. Conclusions: Several negative prognostic factors were identified: ECOG performance status ≥ 1, the presence of ascites and residual disease after surgery, thrombocytosis, and menopausal status. These led to the development of an original prognostic score that can be helpful in clinical practice.


Subject(s)
Adenocarcinoma , Ovarian Neoplasms , Thrombocytosis , Female , Humans , Prognosis , Ascites , Carcinoma, Ovarian Epithelial , Retrospective Studies , Ovarian Neoplasms/pathology
19.
Clin Neurol Neurosurg ; 225: 107567, 2023 02.
Article in English | MEDLINE | ID: mdl-36592532

ABSTRACT

OBJECTIVE: To analyze how nephrotic syndrome (NS) correlates to increased intracranial pressure (ICP), and to present a case of an adult patient whose initial manifestation of NS was cephalalgia, with the later identification of raised ICP. METHODS: Data were retrospectively retrieved from the patient's record, and a literature search with the keywords "nephrotic syndrome", "intracranial hypertension" and "headache" was conducted in PubMed and Embase. RESULTS: This is a rare description of co-occurrence of NS and raised ICP in a 48-year-old man, in which ICP normalizes after NS remits. There is no known cause for the raised ICP of our patient. Ten reports (n = 13) of concomitant occurrence of increased ICP and NS were described in the literature, both in children and adults. Cerebral venous thrombosis (CVT) was the most likely underlying cause for the majority of them. For one patient, the underlying cause was meningoencephalitis. Finally, in one case, the cause is unknown, but CVT was not discarded. CONCLUSION: The early suspicion of elevated ICP is warranted in patients with new-onset headache and NS. It is possible that NS could both directly and indirectly lead to increased ICP through yet unknown mechanisms, although this direct causal relationship cannot be currently established.


Subject(s)
Intracranial Hypertension , Intracranial Thrombosis , Nephrotic Syndrome , Male , Child , Adult , Humans , Middle Aged , Retrospective Studies , Intracranial Hypertension/complications , Intracranial Thrombosis/complications , Headache/complications , Nephrotic Syndrome/complications , Nephrotic Syndrome/diagnosis , Cerebrospinal Fluid Pressure , Intracranial Pressure
20.
J Enzyme Inhib Med Chem ; 38(1): 2171030, 2023 Dec.
Article in English | MEDLINE | ID: mdl-36691932

ABSTRACT

This study does not propose to elucidate how adiponectin secretion is regulated, but how its adiponectin concentration is an indicator of heart disease. About adiponectin, it is not known whether it is functionally an enzyme, or very likely a cytokine/chemokine/hormone, secreted by fat cells/adipocytes in the abdomen. Abdominal fat secretes 67 hormones, and all of which cause disease. For example, adiponectin generates diabetes and ischaemic heart disease via dyslipidemia. Based on clinical symptoms, electrocardiographic and echocardiographic parameters, a group of 208 patients with diastolic cardiac dysfunction with or without preserved systolic function, developed on a background of painful chronic ischaemic heart disease, stable angina on exertion, was constituted. The serum levels of adiponectin, total cholesterol, LDL cholesterol, HDL cholesterol and triglycerides were measured. Using the identified values, it was appreciated whether adiponectin correlates with the type of any of the two conditions, so that it can be recognised as a diagnostic and risk stratification marker.


Subject(s)
Heart Diseases , Myocardial Ischemia , Humans , Adiponectin , Biomarkers , Echocardiography
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