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1.
Front Bioeng Biotechnol ; 12: 1335898, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38659646

RESUMO

Human Embryonic Kidney cells (HEK293) are a popular host for recombinant protein expression and production in the biotechnological industry. This has driven within both, the scientific and the engineering communities, the search for strategies to increase their protein productivity. The present work is inserted into this search exploring the impact of adding sodium acetate (NaAc) into a batch culture of HEK293 cells. We monitored, as a function of time, the cell density, many external metabolites, and the supernatant concentration of the heterologous extra-cellular domain ECD-Her1 protein, a protein used to produce a candidate prostate cancer vaccine. We observed that by adding different concentrations of NaAc (0, 4, 6 and 8 mM), the production of ECD-Her1 protein increases consistently with increasing concentration, whereas the carrying capacity of the medium decreases. To understand these results we exploited a combination of experimental and computational techniques. Metabolic Flux Analysis (MFA) was used to infer intracellular metabolic fluxes from the concentration of external metabolites. Moreover, we measured independently the extracellular acidification rate and oxygen consumption rate of the cells. Both approaches support the idea that the addition of NaAc to the culture has a significant impact on the metabolism of the HEK293 cells and that, if properly tuned, enhances the productivity of the heterologous ECD-Her1 protein.

2.
Eur Urol ; 2024 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-38594103

RESUMO

BACKGROUND AND OBJECTIVE: Most patients with neurourological disorders require lifelong medical care. The European Association of Urology (EAU) regularly updates guidelines for diagnosis and treatment of these patients. The objective of this review is to provide a summary of the 2024 updated EAU guidelines on neurourology. METHODS: A structured literature review covering the timeframe 2021-2023 was conducted for the guideline update. A level of evidence and a strength rating were assigned for each recommendation on the basis of the literature data. KEY FINDINGS AND LIMITATIONS: Neurological conditions significantly affect urinary, sexual, and bowel function, and lifelong management is required for neurourological patients to maintain their quality of life and prevent urinary tract deterioration. Early diagnosis and effective treatment are key, and comprehensive clinical assessments, including urodynamics, are crucial. Management should be customised to individual needs and should involve a multidisciplinary approach and address sexuality and fertility. Lifelong monitoring and follow-up highlight the importance of continuous care for neurourological patients. CONCLUSIONS AND CLINICAL IMPLICATIONS: The 2024 EAU guidelines on neurourology provide an up-to-date overview of available evidence on diagnosis, treatment, and follow-up for neurourological patients. PATIENT SUMMARY: Neurological disorders very frequently affect the lower urinary tract and sexual and bowel function and patients need lifelong management. We summarise the updated European Association of Urology guidelines on neurourology to provide patients and caregivers with the latest insights for optimal health care support.

3.
Vet Ital ; 60(1)2024 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-38577845

RESUMO

Paratuberculosis (PTBC) is a chronic intestinal disease of animals caused by Mycobacterium avium paratuberculosis (MAP). MAP infection is diagnosed through indirect tests based on the immune response. The aims of this study were to compare the performance of two milk ELISA for the diagnosis of PTBC and to assess the bulk tank milk (BTM) MAP exposure in dairy cattle in Argentina. A total of 357 fecal, serum, and milk samples were collected. The fecal samples were processed by culture for MAP isolation, while both, serum and milk samples were used for the detection of antibodies by two different ELISA tests, "in-house" and commercial kit. MAP was isolated in 3.9% of fecal samples. For milk ELISA, poor concordances were obtained. Optimized cut-off points were calculated. The highest sensitivity and specificity values (64% and 80% respectively) were obtained with the combination of MAP isolation and commercial milk ELISA. The results indicate that the combination of different techniques to identify of dairy cattle infected with MAP increases the efficiency of diagnosis. In addition, BTM  samples (n=98) were evaluated to determine herd status using the commercial kit during two seasons, identifying 33.3% of positive samples in autumn and 35.4% in spring.


Assuntos
Doenças dos Bovinos , Mycobacterium avium subsp. paratuberculosis , Paratuberculose , Bovinos , Animais , Paratuberculose/diagnóstico , Paratuberculose/microbiologia , Leite/microbiologia , Doenças dos Bovinos/diagnóstico , Doenças dos Bovinos/microbiologia , Ensaio de Imunoadsorção Enzimática/veterinária , Sensibilidade e Especificidade , Fezes/microbiologia
4.
Int Ophthalmol ; 44(1): 125, 2024 Mar 03.
Artigo em Inglês | MEDLINE | ID: mdl-38431898

RESUMO

PURPOSE: To evaluate the association between LASIK and early cataract phacoemulsification surgery (PE). METHODS: A matched case-control study was conducted. Cases were otherwise healthy adults with a history of LASIK. Groups were paired according to corrected-distance visual acuity (CDVA), axial length, and cataract grade. RESULTS: A total of 213 patients were included. 85 patients were classified as post-LASIK group and 128 as controls. The mean age at the time of LASIK was 42.32 ± 9.24 years. The mean CDVA before PE was 0.29 ± 0.19 Log MAR in post-LASIK group and 0.34 ± 0.22 Log MAR in controls (p = 0.07). The mean axial length was 23.99 ± 1.78 mm in post-LASIK group and 23.62 ± 0.98 mm in controls (p = 0.085). The mean nuclear cataract grading was 1.36 in post-LASIK group and 1.47 in controls (p = 0.34). The mean age at the time of PE was 60.18 ± 7.46 years in post-LASIK group and 67.35 ± 9.28 in controls (p < 0.0005). The difference between the mean age of LASIK and the mean age of PE was 17.85 ± 5.72 years. There was a positive association between the post-LASIK group and the age of PE ≤ 55 years (OR: 4.917, 95% CI: 2.21-10.90, p < 0.001). CONCLUSION: LASIK may be associated with early PE. Patients with LASIK had a 7-year earlier PE compared to a matched control group.


Assuntos
Extração de Catarata , Catarata , Ceratomileuse Assistida por Excimer Laser In Situ , Facoemulsificação , Adulto , Humanos , Criança , Adolescente , Adulto Jovem , Pessoa de Meia-Idade , Estudos de Casos e Controles , Catarata/complicações
5.
Clin Genitourin Cancer ; 22(3): 102048, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38430858

RESUMO

PURPOSE: Bacteriuria may affect the response to adjuvant therapy in non-muscle invasive bladder cancer (NMIBC). The main aim of this study was to examine the effect of recurrent bacteriuria (RB) on the prognosis of NMIBC in women receiving intravesical therapy. MATERIALS AND METHODS: We designed a prospective observational study from 2012 to 2019. We included women with bladder cancer treated with transurethral resection of the bladder (TURB) and adjuvant intravesical treatment. Significant bacteriuria was defined as a presence in urine cultures at or above 100,000 colony-forming units per millilitre. The recurrent bacteriuria group included patients with significant bacteriuria in at least two determinations in 6 months or in 3 or more determinations in a year. The institutional board approved the study. RESULTS: One hundred thirty-six patients diagnosed with NMIBC participate in the study, of whom 100 met the inclusion criteria. During follow-up, 48 were categorized in the RB group and 52 formed the non-bacteriuria group (NB). RB GROUP HAD A BETTER OUTCOME: Eight patients (16.67%) experiencing a recurrence of the same grade, with no progression to a higher-grade tumor or muscle-invasive tumor. In the NB group, 18 (34.6%) patients presented a recurrence (P = .001) and 22 (42.3%) progressed to a higher-grade tumor or muscular invasion (P = .001). The presence of RB was identified as a predictor of good response in multivariate regression with a relative risk of 0.13 (P = .018) CONCLUSIONS: Female patients with RB had a better response to adjuvant treatment for NMIBC. The RB group showed lower rates of tumor recurrences and progression.

6.
Clin Pract ; 14(1): 250-264, 2024 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-38391406

RESUMO

INTRODUCTION: Mental disorders, smoking, or alcoholism and benign prostate disease are highly prevalent in men. AIMS: To identify the relationship between mental disorders, smoking, or alcoholism and benign prostate disease. METHODOLOGY: A prospective multicenter study that evaluated prostate health status in 558 men from the community. Groups: GP-men who request a prostate health examination and whose medical history includes a mental disorder, smoking, or alcoholism prior to a diagnosis of benign prostate disease; GU-men who request a prostate health examination and whose medical history includes a benign prostate disease prior to a diagnosis of mental disorder, smoking, or alcoholism. VARIABLES: age, body mass index (BMI), prostate specific antigen (PSA), follow-up of the mental disorder, smoking or alcoholism, time elapsed between urological diagnosis and the mental disorder, smoking or alcoholism diagnosis, status of the urological disease (cured or not cured), concomitant diseases, surgical history, and concomitant treatments. Descriptive statistics, Student's t-test, Chi2, multivariate analysis. RESULTS: There were no mental disorders, smoking, or alcoholism in 51.97% of men. Anxiety, smoking, major depressive disorder, pathological insomnia, psychosis, and alcoholism were identified in 19.71%, 13.26%, 5.73%, 4.30%, 2.87%, and 2.15% of individuals, respectively. Nonbacterial prostatitis (31.54%), urinary tract infection (other than prostatitis, 24.37%), prostatic intraepithelial neoplasia (13.98%), and prostatodynia (1.43%) were prostate diseases. Unresolved symptomatic benign prostate disease was associated with anxiety, depression, and psychosis (p = 0.002). Smoking was the disorder that men managed to eliminate most frequently. The dominant disorder in patients with symptomatic benign prostatic disease was alcoholism (p = 0.006). CONCLUSIONS: Unresolved symptomatic benign prostatic disease is associated with anxiety, depression, and psychosis. Alcoholism is associated with a worse prognosis in the follow-up of symptomatic benign prostatic disease.

7.
Animals (Basel) ; 13(22)2023 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-38003170

RESUMO

Paratuberculosis is a chronic granulomatous enteritis caused by Mycobacterium avium subsp. Paratuberculosis that affects a wide variety of domestic and wild animals. It is considered one of the diseases with the highest economic impact on the ruminant industry. Despite many efforts and intensive research, paratuberculosis control still remains controversial, and the existing diagnostic and immunoprophylactic tools have great limitations. Thus, models play a crucial role in understanding the pathogenesis of infection and disease, and in testing novel vaccine candidates. Ruminant animal models can be restricted by several reasons, related to space requirements, the cost of the animals, and the maintenance of the facilities. Therefore, we review the potential and limitations of the different experimental approaches currently used in paratuberculosis research, focusing on laboratory animals and cell-based models. The aim of this review is to offer a vision of the models that have been used, and what has been achieved or discovered with each one, so that the reader can choose the best model to answer their scientific questions and prove their hypotheses. Also, we bring forward new approaches that we consider worth exploring in the near future.

8.
Front Sociol ; 8: 1256379, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37868090

RESUMO

Compared to many countries, Cuba has made significant progress in advancing women's rights and gender equity; however, disparities remain. In the country's rural communities and agricultural sector, women continue to face barriers to equal participation and recognition for the value of their work. This case study shares the story of gender equity efforts that have been conducted within the framework of a broader development project-the Project to Strengthen a System of Innovation in Local Agricultural Development (PIAL, for its initials in Spanish). PIAL began in 2001 as a participatory plant-breeding initiative aimed at increasing the genetic diversity of key crops such as maize and beans. Over the course of two decades, the project's goals expanded to include an emphasis on increasing women's participation. In the beginning, those efforts focused on including women in the participatory plant-breeding activities, which enabled them to prioritize traits they cared about such as grain texture, cooking speed, and taste in the selection process. Over time, the participatory nature of the PIAL methodology empowered women to identify and pursue capacity-building in other areas of local agricultural innovation. While PPB remained central to PIAL, women also chose to pursue opportunities in seed bank management, leadership training, and small-scale farm-based entrepreneurship. The results of the PIAL work on gender have included not just more inclusive plant breeding, but also important economic improvements for rural women as they have been able to diversify their livelihoods, and social change as they have gained confidence and recognition as leaders in their households, communities, and beyond.

9.
Neurourol Urodyn ; 2023 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-37905437

RESUMO

AIMS: The postvoid residual (PVR) volume of urine in the bladder is widely used in clinical practice as a guide to initiate treatment, including clean-intermittent self-catheterization (CISC). It is often believed that an elevated PVR causes complications such as recurrent urinary tract infections (UTI) and renal failure. However, evidence for this is limited and identifying alternative measures to guide treatment decisions may optimize patient care. At the International Consultation on Incontinence Research Society (ICI-RS) meeting in 2023 a Think Tank addressed the question of whether we can define the optimal PVR at which CISC should be recommended, and whether there are other measures that could guide a CISC protocol. METHODS: The Think Tank conducted a literature review and expert consensus meeting focusing on current limitations in defining and measuring PVR, and highlighting other measures that may optimize selection for, and persistence with, CISC. RESULTS: There is no consensus on the threshold value of PVR that is considered "elevated" or "significant." There is a lack of standardization on terminology, and the normal range of PVR in different populations of different ages remains to be well-studied. The measurement of PVR is influenced by several factors, including intraindividual variation, timing and method of measurement. Furthermore, the evidence linking an elevated PVR with complications such as UTI and renal failure is mixed. Other measures, such as bladder voiding efficiency or urodynamic parameters, may be better at predicting such complications, and therefore may be more relevant at guiding a CISC protocol. CONCLUSIONS: There is a lack of high quality evidence to support PVR as a predictor for complications of UTI or renal failure. Threshold values for normal PVR in different populations are unknow, and so threshold values for "elevated" or "significant" PVR cannot be determined. Other factors, such as urodynamic findings, may be better at predicting complications and therefore guiding management decisions, and this remains to be studied. Areas for further research are proposed.

10.
Mater Today Bio ; 22: 100740, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37521523

RESUMO

The imbalance between life expectancy and quality of life is increasing due to the raising prevalence of chronic diseases. Musculoskeletal disorders and chronic wounds affect a growing percentage of people and demand more efficient tools for regenerative medicine. Scaffolds that can better mimic the natural physical stimuli that tissues receive under healthy conditions and during healing may significantly aid the regeneration process. Shape, mechanical properties, pore size and interconnectivity have already been demonstrated to be relevant scaffold features that can determine cell adhesion and differentiation. Much less attention has been paid to scaffolds that can deliver more dynamic physical stimuli, such as electrical signals. Recent developments in the precise measurement of electrical fields in vivo have revealed their key role in cell movement (galvanotaxis), growth, activation of secondary cascades, and differentiation to different lineages in a variety of tissues, not just neural. Piezoelectric scaffolds can mimic the natural bioelectric potentials and gradients in an autonomous way by generating the electric stimuli themselves when subjected to mechanical loads or, if the patient or the tissue lacks mobility, ultrasound irradiation. This review provides an analysis on endogenous bioelectrical signals, recent developments on piezoelectric scaffolds for bone, cartilage, tendon and nerve regeneration, and their main outcomes in vivo. Wound healing with piezoelectric dressings is addressed in the last section with relevant examples of performance in animal models. Results evidence that a fine adjustment of material composition and processing (electrospinning, corona poling, 3D printing, annealing) provides scaffolds that act as true emitters of electrical stimuli that activate endogenous signaling pathways for more efficient and long-term tissue repair.

11.
Front Surg ; 10: 1149729, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37383386

RESUMO

Introduction/Objectives: This study aims to describe the procedure and effectiveness of the four-vertex technique for correcting urethral prolapse in women. Methods and Materials: includes a retrospective case series of 17 patients who underwent surgery for urethral prolapse. Two study groups were distinguished based on the presence or absence of pelvic heaviness symptoms. The variables were analyzed, including age, BMI, concomitant diseases, obstetric and gynecological history, time from diagnosis to surgery, and outcomes of treatment. Results: All patients were postmenopausal, with a mean age at the time of the intervention of 70.41 years, with no differences between groups. Mean BMI was 23.67 kg/m2, higher in the group with a sensation of vaginal heaviness (p = 0.027). Mean time elapsed between diagnosis and operation was 231.58 days, with no differences between groups. Mean childbirth count was 2.29. The most frequent causes for consultation were urethrorrhagia (33.33%) and a bulging sensation (33.33%). After the intervention, 14 patients (82.35%) were asymptomatic, two (11.76%) had dysuria, and one (5.88%) had urinary urgency. Ten patients had pre-surgical urinary incontinence, which was resolved in nine patients. 17.46% subsequently presented pelvic organ prolapse. In three women there was secondary impairment of sexual activity. Conclusion: The four-vertex technique was effective in resolving symptoms in most patients. However, some patients experienced dysuria, urinary urgency, and pelvic organ prolapse after surgery. Urinary incontinence improved in most patients, but a few required additional treatments with suburethral tape. The study also identified associations between variables and the presence of cystocele, consultation for a bulging sensation, and bleeding from urethral prolapse. Overall, this study sheds light on the challenges and outcomes of surgical treatment for urethral prolapse and provides valuable insights for future research in this area.

12.
Front Pediatr ; 11: 1166176, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37325355

RESUMO

Objectives: This study aimed to evaluate the characteristics and outcomes of infant patients with leukemia. Methods: A retrospective analysis was conducted in a cohort of 39 patients diagnosed with infant leukemia from 1990 to 2020 who underwent treatment at the pediatric hemato-oncology department of a tertiary hospital in Madrid, Spain. Results: Of the 588 diagnosed cases of childhood leukemia, 39 (6.6%) cases were infant leukemia. The 5-year event-free survival and the 5-year overall survival were 43.6% (SE 4.1) and 46.5% (SD 24.08), respectively. In a univariate analysis, a younger age at diagnosis was associated with poorer outcomes (p = 0.027), as was induction failure (p = 0.0024). Patients treated with hematopoietic stem cell transplantation had better outcomes than non-transplanted patients (p = 0.001); however, the group comparisons that exclude patients who were unable to undergo transplantation due to refractoriness/relapse or death during treatment showed no significant differences. Conclusions: The main risk factors that affected survival in our study were an age younger than 6 months and a poor response to induction therapy. It is important to identify poor prognostic factors in this population in order to seek different approaches that could improve outcomes.

13.
Vet Immunol Immunopathol ; 259: 110595, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37058952

RESUMO

Mycobacterium avium subsp. paratuberculosis (MAP) is an important pathogen that causes granulomatous enteritis known as Johne's disease or paratuberculosis (PTB). In this study an experimental model of calves infected with Argentinean isolates of MAP for 180 days was used to provide more data of the early PTB stages. Calves were challenged by oral route with MAP strain IS900-RFLPA (MA; n = 3), MAP strain IS900-RFLPC (MC; n = 2) or mock infected (MI; n = 2), and response to infection was evaluated through peripheral cytokine expression, MAP tissue distribution and histopathological early-stage findings. Specific and varied levels of IFN-γ were only detected at 80 days post-infection in infected calves. These data indicate that specific IFN-γ is not a useful indicator for early detection of MAP infection in our calf model. At 110 days post-infection, TNF-α expression was higher than IL-10 in 4 of the 5 infected animals and a significant decrease of TNF-α expression was detected in infected vs. non-infected calves. All calves challenged were identified as infected by mesenteric lymph node tissue culture and real time IS900 PCR. In addition, for lymph nodes samples, the agreement between these techniques was almost perfect (κ = 0.86). Colonization of tissues and levels of tissue infection varied between individuals. Evidence of early MAP dissemination to extraintestinal tissues such as the liver was detected by culture in one animal (MAP strain IS900-RFLPA). In both groups microgranulomatous lesions were observed predominantly in the lymph nodes, with giant cells present only in the MA group. In summary, the findings described herein may indicate that local MAP strains induced specific immune responses with particularities that could suggest differences in their biological behavior. Further studies should be carried out in order to obtain an in-depth understanding of the influence of MAP strains in host-pathogen interactions and the outcome of disease.


Assuntos
Doenças dos Bovinos , Mycobacterium avium subsp. paratuberculosis , Paratuberculose , Animais , Bovinos , Fator de Necrose Tumoral alfa , Citocinas
14.
Adv Colloid Interface Sci ; 313: 102867, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36889183

RESUMO

Liquid crystals (LCs) possess unique physicochemical properties, translatable into a wide range of applications. To date, lipidic lyotropic LCs (LLCs) have been extensively explored in drug delivery and imaging owing to the capability to encapsulate and release payloads with different characteristics. The current landscape of lipidic LLCs in biomedical applications is provided in this review. Initially, the main properties, types, methods of fabrication and applications of LCs are showcased. Then, a comprehensive discussion of the main biomedical applications of lipidic LLCs accordingly to the application (drug and biomacromolecule delivery, tissue engineering and molecular imaging) and route of administration is examined. Further discussion of the main limitations and perspectives of lipidic LLCs in biomedical applications are also provided. STATEMENT OF SIGNIFICANCE: Liquid crystals (LCs) are those systems between a solid and liquid state that possess unique morphological and physicochemical properties, translatable into a wide range of biomedical applications. A short description of the properties of LCs, their types and manufacturing procedures is given to serve as a background to the topic. Then, the latest and most innovative research in the field of biomedicine is examined, specifically the areas of drug and biomacromolecule delivery, tissue engineering and molecular imaging. Finally, prospects of LCs in biomedicine are discussed to show future trends and perspectives that might be utilized. This article is an ampliation, improvement and actualization of our previous short forum article "Bringing lipidic lyotropic liquid crystal technology into biomedicine" published in TIPS.


Assuntos
Pesquisa Biomédica , Lipídeos , Cristais Líquidos , Cristais Líquidos/química , Cristais Líquidos/classificação , Lipídeos/administração & dosagem , Lipídeos/química , Sistemas de Liberação de Medicamentos , Engenharia Tecidual , Imagem Molecular , Pesquisa Biomédica/métodos , Pesquisa Biomédica/tendências , Humanos , Animais , Coelhos
15.
Urol Int ; 107(3): 304-309, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36754036

RESUMO

INTRODUCTION: Post-prostatectomy urinary incontinence (PPUI) has an enormous impact in quality of life (QoL). Transobturator-rethrourethral sling (AdVanceTMXP sling) is a well-established treatment option although there is paucity of data on long-term outcomes. Our objective was to assess the long-term functional outcomes and QoL in a cohort of men undergoing AdVanceTMXP sling surgery. METHODS: Retrospective observational study of men undergoing AdVanceTMXP sling in a tertiary referral institution from August 2013 to July 2020. 55 patients met the inclusion criteria, with a minimum follow-up of 12 months. Main outcomes were pre- and post-operative daily pad use and scoring in the ICIQ-SF questionnaire. Post-operative complications were assessed following the Clavien-Dindo classification system. QoL and satisfaction with the procedure were assessed through direct interview. RESULTS: Mean number of pads prior to surgery was 3.1, and mean ICIQ-SF score was 13.5. After surgery, mean daily pads use went to 1.2, and mean ICIQ-SF dropped to 5. With a mean follow-up of 42.36 months, 21.8% patients did not use any pads/day and 76.4% achieved social continence (0-1 pad/day). We found no statistically significant differences in outcomes of patients with follow-up of <36 months, 36-48 months, and >48 months (p = 0.067). CONCLUSIONS: AdVanceTMXP sling implantation in men with PPUI improves urinary incontinence and QoL, and their results are sustained over time.


Assuntos
Slings Suburetrais , Incontinência Urinária por Estresse , Incontinência Urinária , Humanos , Masculino , Seguimentos , Resultado do Tratamento , Qualidade de Vida , Incontinência Urinária por Estresse/cirurgia , Incontinência Urinária/cirurgia , Incontinência Urinária/complicações , Prostatectomia/efeitos adversos , Prostatectomia/métodos , Slings Suburetrais/efeitos adversos
16.
Biomacromolecules ; 24(10): 4408-4418, 2023 10 09.
Artigo em Inglês | MEDLINE | ID: mdl-36597885

RESUMO

The involvement of the extracellular matrix (ECM) in tumor progression has motivated the development of biomaterials mimicking the tumor ECM to develop more predictive cancer models. Particularly, polypeptides based on elastin could be an interesting approach to mimic the ECM due to their tunable properties. Here, we demonstrated that elastin-like recombinamer (ELR) hydrogels can be suitable biomaterials to develop breast cancer models. This hydrogel was formed by two ELR polypeptides, one containing sequences biodegradable by matrix metalloproteinase and cyclooctyne and the other carrying arginylglycylaspartic acid and azide groups to allow cell adhesion, biodegradability, and suitable stiffness through "click-chemistry" cross-linking. Our findings show that breast cancer or nontumorigenic breast cells showed high viability and cell proliferation for up to 7 days. MCF7 and MCF10A formed spheroids whereas MDA-MB-231 formed cell networks, with the expression of ECM and high drug resistance in all cases, evidencing that ELR hydrogels are a promising biomaterial for breast cancer modeling.


Assuntos
Neoplasias da Mama , Hidrogéis , Humanos , Feminino , Hidrogéis/farmacologia , Hidrogéis/química , Elastina/química , Neoplasias da Mama/tratamento farmacológico , Materiais Biocompatíveis , Peptídeos , Matriz Extracelular
17.
Trends Pharmacol Sci ; 44(1): 7-10, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35400560

RESUMO

Liquid crystals (LCs), discovered more than 130 years ago, are now emerging in the field of biomedicine. This article highlights the recent uses of lipid lyotropic LCs in therapeutics delivery, imaging, and tissue engineering and invites the scientific community to continue exploring the design of more complex LCs.


Assuntos
Cristais Líquidos , Humanos , Cristais Líquidos/química , Tecnologia
18.
Curr Bladder Dysfunct Rep ; 18(1): 10-15, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36466948

RESUMO

Purpose of Review: No specific guidelines have been developed for acute cystitis management during the COVID-19 pandemic. This review aims to provide up-to-date information about treatment and follow-up in patients with symptoms suggesting lower urinary tract infection. Recent Findings: Uncomplicated cystitis does not need microbiological confirmation; thus, clinical diagnosis via telephone interview or questionnaires may be done. When complicated infections are suspected, in-person evaluation or close follow-up is mandatory. Antibiotic treatment is still the gold standard for treatment, although non-pharmacological strategies have also been suggested and further investigations are warranted. Summary: Urinary tract infections are still a frequent reason for consultation that needs to be addressed in both primary care and specialized levels. Their management during the pandemic is similar than in precedent years, but telehealth options have emerged which can facilitate diagnosis and treatment.

19.
Neurourol Urodyn ; 42(1): 263-281, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36335613

RESUMO

INTRODUCTION AND OBJECTIVES: The Acute Cystitis Symptom Score (ACSS) is a patient self-reporting questionnaire for clinical diagnostics and patient-reported outcome (PRO), which may assess the symptoms and the effect on the quality of life in women with acute cystitis (AC). The current study aimed to create a validated Spanish version of the ACSS questionnaire. MATERIAL AND METHODS: The process of linguistic validation of the Spanish version of the ACSS consisted of the independent forward and backward translations, revision and reconciliation, and cognitive assessment. Clinical evaluation of the study version of the ACSS was carried out in clinics in Spain and Latin America. Statistical tests included the calculation of Cronbach's α, split-half reliability, specificity, sensitivity, diagnostic odds ratio, positive and negative likelihood ratio, and area under the receiver-operating characteristic curve (AUC). RESULTS: The study was performed on 132 patients [age (mean;SD) 45.0;17.8 years] with AC and 55 controls (44.5;12.2 years). Cronbach's α of the ACSS was 0.86, and the split-half reliability was 0.82. The summary scores of the ACSS domains were significantly higher in patients than in controls, 16.0 and 2.0 (p < 0.001), respectively. The predefined cut-off point of ≥6 for a summary score of the "Typical" domain resulted in a specificity of 83.6% and a sensitivity of 99.2% for the Spanish version of the ACSS. AUC was 0.91 [0.85; 0.97]. CONCLUSIONS: The validated Spanish ACSS questionnaire evaluates the symptoms and clinical outcomes of patients with AC. It can be used as a patient's self-diagnosis of AC, as a PRO measure tool, and help to rule out other pathologies in patients with voiding syndrome.


Assuntos
Cistite , Qualidade de Vida , Humanos , Feminino , Adolescente , Reprodutibilidade dos Testes , América Latina , Cistite/diagnóstico , Europa (Continente) , Inquéritos e Questionários , Traduções , Doença Aguda
20.
Ther Adv Urol ; 14: 17562872221135941, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36438605

RESUMO

Neuromodulation is recommended by major international guidelines as a fourth-line treatment in bladder pain syndrome/interstitial cystitis (BPS/IC) patients after failure of behavioural, oral and intravesical pharmacological treatments, including hydrodistension. A non-systematic review of studies identified by electronic search of MEDLINE was performed with no time limitation. A narrative synthesis of the existing evidence regarding the results of sacral, tibial and pudendal nerve stimulation in the management of BPS/IC was developed. Neuromodulation in pelvic chronic pain disorders, including BPS/IC, is a useful tool for refractory patients to conventional treatments. Sacral neuromodulation may be effective in patients with BPS without Hunner's lesions, and the effect seems to be maintained in the mid- and long-term. Posterior tibial nerve stimulation can be offered to patients with BPS/IC in the context of a multidisciplinary approach. When pudendal neuralgia is suspected, selective pudendal nerve stimulation has a high response rate. The aetiology of the pain can influence the outcomes in the mid- and long-term of the different neuromodulation approaches, thus careful diagnosis is recommended.

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