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1.
Curr Oncol ; 31(2): 933-940, 2024 02 06.
Artigo em Inglês | MEDLINE | ID: mdl-38392063

RESUMO

The purpose of this study is to evaluate the treatment safety of thermal ablation compared to surgical treatment of T1a tumors (small renal masses) at a high-volume center. We conducted an observational single-center study based on data collected form the National Swedish Kidney Cancer Register (NSKCR) between 2015 and 2021. In total, 444 treatments of T1a tumors were included. Patients underwent surgery (partial or total nephrectomy) or ablative treatment-radiofrequency ablation (RFA) or microwave ablation (MWA). Patient characteristics were retrieved from patient records, and tumor complexity was estimated from pre-interventional CT scans. The odds ratio (OR) of suffering from a severe surgical complication following ablative treatment was estimated using a logistic regression model adjusted for age, BMI, ASA physical status classification, smoking status and RENAL nephrometry score. The frequency of severe surgical complications was 6.3% (16/256 treatments) after surgical intervention and 2.1% (4/188 treatments) following ablative treatment. Our primary hypothesis that ablative treatment is associated with a lower risk of severe surgical complications is supported by the results (OR 0.39; 0.19-0.79; p = 0.013). When adjusting for age, smoking status, ASA score, BMI score and RENAL nephrometry score, we see an even greater difference between the two groups (OR 0.34; 0.17-0.68; p = 0.002). Our study was limited by the differences in patient and tumor characteristics between the two compared groups and the study design. If oncological outcomes are found to be comparable, ablative treatment should be considered as a first-line treatment for all small renal masses.


Assuntos
Carcinoma de Células Renais , Neoplasias Renais , Humanos , Carcinoma de Células Renais/cirurgia , Carcinoma de Células Renais/patologia , Neoplasias Renais/cirurgia , Neoplasias Renais/patologia , Nefrectomia/efeitos adversos , Nefrectomia/métodos , Resultado do Tratamento
2.
Pilot Feasibility Stud ; 9(1): 147, 2023 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-37612761

RESUMO

BACKGROUND: Early mobilisation is strongly recommended following abdominal cancer surgery, but evidence on how to structure early mobilisation to improve outcomes and support patient adherence is lacking. Pedatim® (Phystec) is a novel digital tool designed to support mobilisation in hospital settings using prescribed activities and goals on a tablet. The aim of this study was to evaluate the feasibility of the Pedatim tablet to enhance mobilisation following abdominal cancer surgery. METHODS: In a non-randomised feasibility trial design, participants were recruited between January and May 2022 at Karolinska University Hospital, Sweden. Participants used a Pedatim tablet from postoperative day 1 (POD 1) until hospital discharge. The primary objective was to evaluate process feasibility, regarding recruitment, compliance, and acceptability. Recruitment was measured by percentage of available patients included, eligibility criteria sufficiency, and number of dropouts. Compliance was measured by number of patients using versus not using the board. Acceptability was measured using the System Usability Scale. The secondary objective was to evaluate scientific feasibility, defined as an indication of treatment effects where physical activity was assessed using an activPAL accelerometer. Unforeseen events relating to the tablet were also registered. RESULTS: Based on predetermined feasibility criteria, the overall study design was determined to be feasible regarding recruitment as 69% accepted participation (n = 20), compliance was 95%, and the acceptability mean score was high (77/100). Eligibility criteria were not feasible as 79% (n = 108) of available patients were excluded. The intervention was determined to be scientifically feasible, mean steps per day increased from 623 (SD 766) to 1823 (SD 1446), and mean sit-to-stand transitions per day increased from 11 (SD 8) to 29 (SD 12) POD 1-4. Technical issues emerged, highlighting the need for available technical support and "user champions" among healthcare professionals on the ward. CONCLUSIONS: Using the Pedatim tablet to enhance mobilisation following abdominal cancer surgery was deemed feasible, but a randomised controlled trial is needed to determine the tool's effectiveness. The study process was determined to be feasible with revisions of the eligibility criteria needed before a future trial. Involving healthcare professionals and providing available technical support are important for future implementation.

3.
Hum Reprod ; 37(11): 2497-2502, 2022 10 31.
Artigo em Inglês | MEDLINE | ID: mdl-36112046

RESUMO

Biomedical science is rapidly developing in terms of more transparency, openness and reproducibility of scientific publications. This is even more important for all studies that are based on results from basic semen examination. Recently two concordant documents have been published: the 6th edition of the WHO Laboratory Manual for the Examination and Processing of Human Semen, and the International Standard ISO 23162:2021. With these tools, we propose that authors should be instructed to follow these laboratory methods in order to publish studies in peer-reviewed journals, preferable by using a checklist as suggested in an Appendix to this article.


Assuntos
Análise do Sêmen , Sêmen , Humanos , Reprodutibilidade dos Testes , Análise do Sêmen/métodos , Revisão por Pares , Editoração
4.
Eur Urol ; 82(6): 581-583, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36163308

RESUMO

The European School of Urology has created a taskforce to develop a comprehensive, structured urology curriculum with clinical exposure, practical skills, and hands-on training. The curriculum proposal includes cognitive teaching by symptoms and practical aspects to guarantee uniform access to undergraduate medical education in urology among all European countries, regardless of location, local urology exposure, or bias in national curricula.


Assuntos
Educação de Graduação em Medicina , Urologia , Humanos , Urologia/educação , Currículo , Europa (Continente) , Consenso
5.
Eur Urol Open Sci ; 33: 72-80, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34738091

RESUMO

BACKGROUND: The burden of urological diseases is rising as the worldwide population ages. Although specialist urological provision is needed, a large proportion of these conditions will be managed in primary care. The importance of including urology in medical education currently remains unclear. OBJECTIVE: To provide recommendations on undergraduate medical education for urology in Europe. DESIGN SETTING AND PARTICIPANTS: A three-round Delphi process to reach consensus on standardising the undergraduate urology curriculum in Europe was endorsed by the European School of Urology. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: The levels of agreement were set using a nine-point scale according to the GRADE grid: 1-3, disagree; 4-6, uncertain; and 7-9, agree. Consensus was defined as at least 70% of the participants scoring within the same 3-point grouping. RESULTS AND LIMITATIONS: Overall, consensus was reached for 20 of 34 statements (70.5%) across the three Delphi rounds, with agreement for 75% (n = 15) and disagreement for 25% (n = 5). The following main points were agreed. Urological teaching should be introduced before year 5 of medical school, with at least 20 h of theoretical activities and at least 30 h of practical activities. Urology should be taught as a stand-alone subject rather than combined with another surgical specialty or a nephrology programme. The participants agreed that urology should be taught according to symptoms. A urology programme should include the anatomy and physiology of the urinary tract, and students should know how to clinically assess a urological patient. CONCLUSIONS: Our recommended urology pathway will allow European medical schools to provide a more comprehensive undergraduate urology curriculum. It will also help to improve and maintain standards of urology undergraduate teaching across Europe. PATIENT SUMMARY: Our survey showed that urology in universities should have, at minimum, time for theoretical and practical activities and should be taught as a stand-alone subject on the basis of symptoms. Students should give feedback to facilitate constant improvement and evolution of the teaching programme.

6.
Cells ; 10(2)2021 01 27.
Artigo em Inglês | MEDLINE | ID: mdl-33513766

RESUMO

Fertility preservation for male childhood cancer survivors not yet capable of producing mature spermatozoa, relies on experimental approaches such as testicular explant culture. Although the first steps in somatic maturation can be observed in human testicular explant cultures, germ cell depletion is a common obstacle. Hence, understanding the spermatogonial stem cell (SSC) niche environment and in particular, specific components such as the seminiferous basement membrane (BM) will allow progression of testicular explant cultures. Here, we revealed that the seminiferous BM is established from 6 weeks post conception with the expression of laminin alpha 1 (LAMA 1) and type IV collagen, which persist as key components throughout development. With prepubertal testicular explant culture we found that seminiferous LAMA 1 expression is disrupted and depleted with culture time correlating with germ cell loss. These findings highlight the importance of LAMA 1 for the human SSC niche and its sensitivity to culture conditions.


Assuntos
Preservação da Fertilidade , Laminina/metabolismo , Puberdade/metabolismo , Espermatogônias/metabolismo , Membrana Basal/metabolismo , Colágeno Tipo IV/metabolismo , Fibronectinas/metabolismo , Humanos , Masculino , Modelos Biológicos , Túbulos Seminíferos/metabolismo , Espermatozoides/metabolismo , Testículo/metabolismo , Transcrição Gênica
7.
J Urol ; 205(3): 864-870, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33081594

RESUMO

PURPOSE: Studies have shown that men with Peyronie's disease often suffer from psychological problems, but the psychiatric burden of this disorder remains largely unknown. We assessed risks of a range of psychiatric outcomes in a population based Swedish cohort comprising 3.5 million men. MATERIALS AND METHODS: We conducted a longitudinal cohort study based on Swedish national registers. A total of 8,105 men diagnosed with Peyronie's disease and 3.5 million comparison subjects from the general Swedish population were selected, and followed up with for diagnosed psychiatric outcomes including substance use disorder, alcohol misuse, anxiety disorder, depression, and self-injurious behaviors. Risks of psychiatric outcomes were estimated with Cox regressions and additionally adjusted for birth year. RESULTS: Men with Peyronie's disease had increased risks of being diagnosed with substance use disorder (HR 1.4, 95% CI 1.1-1.9), no excess risk of alcohol misuse (HR 0.9, CI 0.8-1.1), but elevated risks of anxiety disorder (HR 1.9, CI 1.6-2.2), depression (HR 1.7, CI 1.5-2.0), self-injurious behaviors (HR 2.0, 95% CI 1.7-2.3) as well as any psychiatric outcomes (HR 1.4, 95% CI 1.2-1.5). The risk estimates were slightly decreased when adjusted for birth year. A limitation of the study was that we had no information about Peyronie's disease diagnoses assigned before year 1997. CONCLUSIONS: Men with Peyronie's disease are at increased risk of being diagnosed with adverse psychiatric outcomes. Health care providers should ensure that men with Peyronie's disease have a documented mental health status assessment.


Assuntos
Transtornos Mentais/epidemiologia , Induração Peniana/psicologia , Adulto , Idoso , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Risco , Suécia/epidemiologia
8.
BMC Cancer ; 20(1): 805, 2020 Aug 26.
Artigo em Inglês | MEDLINE | ID: mdl-32842975

RESUMO

BACKGROUND: Patients who have undergone radical cystectomy for urinary bladder cancer are not sufficiently physically active and therefore may suffer complications leading to readmissions. A physical rehabilitation programme early postoperatively might prevent or at least alleviate these potential complications and improve physical function. The main aim of the CanMoRe trial is to evaluate the impact of a standardised and individually adapted exercise intervention in primary health care to improve physical function (primary outcome) and habitual physical activity, health-related quality of life, fatigue, psychological wellbeing and readmissions due to complications in patients undergoing robotic-assisted radical cystectomy for urinary bladder cancer. METHODS: In total, 120 patients will be included and assigned to either intervention or control arm of the study. All patients will receive preoperative information on the importance of early mobilisation and during the hospital stay they will follow a standard protocol for enhanced mobilisation. The intervention group will be given a referral to a physiotherapist in primary health care close to their home. Within the third week after discharge, the intervention group will begin 12 weeks of biweekly exercise. The exercise programme includes aerobic and strengthening exercises. The control group will receive oral and written information about a home-based exercise programme. Physical function will serve as the primary outcome and will be measured using the Six-minute walk test. Secondary outcomes are gait speed, handgrip strength, leg strength, habitual physical activity, health-related quality of life, fatigue, psychological wellbeing and readmissions due to complications. The measurements will be conducted at discharge (i.e. baseline), post-intervention and 1 year after surgery. To evaluate the effects of the intervention mixed or linear regression models according to the intention to treat procedure will be used. DISCUSSION: This proposed randomised controlled trial has the potential to provide new knowledge within rehabilitation after radical cystectomy for urinary bladder cancer. The programme should be easy to apply to other patient groups undergoing abdominal surgery for cancer and has the potential to change the health care chain for these patients. TRIAL REGISTRATION: ClinicalTrials.gov. Clinical trial registration number NCT03998579 . First posted June 26, 2019.


Assuntos
Cistectomia/reabilitação , Terapia por Exercício/métodos , Complicações Pós-Operatórias/epidemiologia , Procedimentos Cirúrgicos Robóticos/reabilitação , Neoplasias da Bexiga Urinária/cirurgia , Adolescente , Adulto , Idoso , Criança , Cistectomia/efeitos adversos , Cistectomia/métodos , Feminino , Humanos , Pessoa de Meia-Idade , Readmissão do Paciente/estatística & dados numéricos , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Procedimentos Cirúrgicos Robóticos/efeitos adversos , Suécia , Resultado do Tratamento , Bexiga Urinária/patologia , Bexiga Urinária/cirurgia , Neoplasias da Bexiga Urinária/complicações , Adulto Jovem
9.
Eur Urol ; 78(3): 381-384, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32546363

RESUMO

Regardless of career intentions, junior doctors will meet patients with urological problems. There are no studies on the status of undergraduate education for urology in Europe. We designed an 18-item online survey using the platform www.surveymonkey.com to assess the current status of undergraduate education in urology. A total of 347 medical students, trainees, and urologists responded to the survey. Medical students' exposure to urology during their undergraduate career was heterogeneous. Although the quality of urology education was valued from moderate to high, urology as a speciality did not influence their future training decision making. Decision making in relation to residency training correlated with the number of hours spent on practical training, duration of urology rotation, and year of medical school in which urological exposure was introduced. The current European exposure to urology at undergraduate level is heterogeneous, with various factors influencing future decisions regarding training and specialisation. A uniform undergraduate curriculum would eliminate such heterogeneous exposure and facilitate a workforce fit for the future urological needs. PATIENT SUMMARY: Junior doctors will meet patients with urological problems in the wards, emergency departments, and primary care. Institutions should work together for a urological curriculum that fits the future clinical requirements.


Assuntos
Educação de Graduação em Medicina , Urologia/educação , Europa (Continente) , Autorrelato
10.
J Surg Res ; 250: 1-11, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32014696

RESUMO

BACKGROUND: Training using laparoscopic high-fidelity simulators (LHFSs) to proficiency levels improves laparoscopic cholecystectomy skills. However, high-cost simulators and their limited availability could negatively impact residents' laparoscopic training opportunities. We aimed to assess whether motivation and surgical skill performance differ after basic skills training (BST) using a low-cost (Blackbox) versus LHFS (LapMentor) among medical students. MATERIALS AND METHODS: Sixty-three medical students from Karolinska Institutet volunteered, completing written informed consent, questionnaire regarding expectations of the simulation training, and a visuospatial ability test. They were randomized into two groups that received BST using Blackbox (n = 32) or LapMentor (n = 31). However, seven students absence resulted in 56 participants, followed by another 9 dropouts. Subsequently, after training, 47 students took up three consecutive tests using the minimally invasive surgical trainer-virtual reality (MIST-VR) simulator, finalizing a questionnaire. RESULTS: More Blackbox group participants completed all MIST-VR tests (29/31 versus 18/25). Students anticipated mastering LapMentor would be more difficult than Blackbox (P = 0.04). In those completing the simulation training, a trend toward an increase was noted in how well participants in the Blackbox group liked the simulator training (P = 0.07). Subgroup analysis of motivation and difficulty in liking the training regardless of simulator was found only in women (Blackbox [P = 0.02]; LapMentor [P = 0.06]). In the Blackbox group, the perceived difficulty of training, facilitation, and liking the Blackbox training (significant only in women) were significantly correlated with the students' performance in the MIST-simulator. No such correlations were found in the LapMentor group. CONCLUSIONS: Results indicate an important role for low-tech/low-cost Blackbox laparoscopic BST of students in an otherwise high-tech surrounding. Furthermore, experience of Blackbox BST procedures correlate with students' performance in the MIST-VR simulator, with some gender-specific differences.


Assuntos
Avaliação Educacional/estatística & dados numéricos , Laparoscopia/educação , Treinamento por Simulação/métodos , Adulto , Competência Clínica/estatística & dados numéricos , Instrução por Computador/métodos , Feminino , Humanos , Masculino , Fatores Sexuais , Treinamento por Simulação/economia , Estudantes de Medicina/estatística & dados numéricos , Realidade Virtual , Adulto Jovem
11.
Stud Health Technol Inform ; 247: 201-205, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29677951

RESUMO

Virtual Patients (VPs) offer learners the opportunity to practice clinical reasoning skills and have recently been integrated in Massive Open Online Courses (MOOCs). Feedback is a central part of a branched VP, allowing the learner to reflect on the consequences of their decisions and actions. However, there is insufficient guidance on how to design feedback models within VPs and especially in the context of their application in MOOCs. In this paper, we share our experiences from building a feedback model for a bladder cancer VP in a Urology MOOC, following an iterative process in three steps. Our results demonstrate how we can systematize the process of improving the quality of VP components by the application of known literature frameworks and extend them with a feedback module. We illustrate the design and re-design process and exemplify with content from our VP. Our results can act as starting point for discussions on modelling feedback in VPs and invite future research on the topic.


Assuntos
Competência Clínica , Retroalimentação , Interface Usuário-Computador , Humanos , Aprendizagem , Simulação de Paciente
12.
Surg Endosc ; 32(1): 87-95, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28664435

RESUMO

BACKGROUND: Basic skills training in laparoscopic high-fidelity simulators (LHFS) improves laparoscopic skills. However, since LHFS are expensive, their availability is limited. The aim of this study was to assess whether automated video analysis of low-cost BlackBox laparoscopic training could provide an alternative to LHFS in basic skills training. METHODS: Medical students volunteered to participate during their surgical semester at the Karolinska University Hospital. After written informed consent, they performed two laparoscopic tasks (PEG-transfer and precision-cutting) on a BlackBox trainer. All tasks were videotaped and sent to MPLSC for automated video analysis, generating two parameters (Pl and Prtcl_tot) that assess the total motion activity. The students then carried out final tests on the MIST-VR simulator. This study was a European collaboration among two simulation centers, located in Sweden and Greece, within the framework of ACS-AEI. RESULTS: 31 students (19 females and 12 males), mean age of 26.2 ± 0.8 years, participated in the study. However, since two of the students completed only one of the three MIST-VR tasks, they were excluded. The three MIST-VR scores showed significant positive correlations to both the Pl variable in the automated video analysis of the PEG-transfer (RSquare 0.48, P < 0.0001; 0.34, P = 0.0009; 0.45, P < 0.0001, respectively) as well as to the Prtcl_tot variable in that same exercise (RSquare 0.42, P = 0.0002; 0.29, P = 0.0024; 0.45, P < 0.0001). However, the correlations were exclusively shown in the group with less PC gaming experience as well as in the female group. CONCLUSIONS: Automated video analysis provides accurate results in line with those of the validated MIST-VR. We believe that a more frequent use of automated video analysis could provide an extended value to cost-efficient laparoscopic BlackBox training. However, since there are gender-specific as well as PC gaming experience differences, this should be taken in account regarding the value of automated video analysis.


Assuntos
Competência Clínica/estatística & dados numéricos , Simulação por Computador/estatística & dados numéricos , Educação de Graduação em Medicina/métodos , Laparoscopia/educação , Gravação em Vídeo/métodos , Adulto , Feminino , Humanos , Masculino
13.
Oncotarget ; 8(36): 60257-60269, 2017 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-28947968

RESUMO

Immune checkpoint blockade has shown promising results in numerous cancer types. However, in prostate cancer (PC), absent or limited responses have been reported. To investigate further, we compared the phenotype of infiltrating T-cells isolated from prostate tissue from patients with PC (n = 5), benign prostatic hyperplasia (BPH) (n = 27), BPH with concurrent PC (n = 4) and controls (n = 7). The majority of T-cells were CD8+ and had a CCR7-CD45RO+ effector memory phenotype. However, the yield of T-cells isolated from PC lesions was on average 20-fold higher than that obtained from control prostates. Furthermore, there were differences between the prostate conditions regarding the percentage of T-cells expressing several activation markers and co-inhibitory receptors. In conclusion, many prostate-infiltrating T-cells express co-inhibitory receptors PD-1 and LAG-3, regardless of prostate condition. Despite the observed increase in counts and percentages of PD-1+ T-cells in PC, the concomitant demonstration of high percentage of PD-1+ T-cells in control prostates suggests that PD-1 may play a role in controlling the homeostasis of the prostate rather than in contributing to PC-associated immune-suppression. Thus, PD-1 may not be a good candidate for checkpoint blockade in PC and these data are relevant for evaluation of clinical trials and in designing future immunotherapeutic approaches of PC.

14.
Aging Male ; 20(4): 266-276, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28787230

RESUMO

Treating male lower urinary tract symptoms (LUTS) by targeting the prostate would have limited effect on overactive bladder (OAB) symptoms. This study assessed perceived symptoms and quality of life (QoL) of male patients with OAB treated with an α-blocker plus solifenacin in daily clinical practice. Male patients aged ≥40 years were included after the decision was made to initiate treatment with an α-blocker for LUTS plus solifenacin for OAB symptoms. The primary endpoint was change in patient perception of bladder condition (PPBC) questionnaire score over 6 months. Other assessments included the OAB-questionnaire short form (OAB-q SF) and International Prostate Symptom Score (IPSS). Interpretation of the study data was hindered by not meeting the enrollment target and a high dropout rate. In 36 evaluable patients, mean (SD) PPBC score improved from 4.3 (0.93) at baseline ("moderate" to "severe" problems) to 3.5 (1.06) at month 6 ("minor" to "moderate" problems). OAB-q SF scores and total IPSS also improved. In this patient population, treatment with solifenacin and an α-blocker resulted in improvements in male patient perception of their LUTS and QoL, although the results should be interpreted with caution due to the low number of patients with complete data.


Assuntos
Antagonistas Adrenérgicos alfa/administração & dosagem , Sintomas do Trato Urinário Inferior/tratamento farmacológico , Antagonistas Muscarínicos/administração & dosagem , Qualidade de Vida , Succinato de Solifenacina/administração & dosagem , Bexiga Urinária Hiperativa/tratamento farmacológico , Agentes Urológicos/administração & dosagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Medidas de Resultados Relatados pelo Paciente , Satisfação do Paciente , Suécia
15.
Med Teach ; 39(7): 691-696, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28485629

RESUMO

Massive open online courses (MOOCs) are a novel mode of online learning. They are typically based on higher education courses and can attract a high number of learners, often in the thousands. They are distinct from on-campus education and deliver the learning objectives through a series of short videos, recommended readings and discussion fora, alongside automated assessments. Within medical education the role of MOOCs remains unclear, with recent proposals including continuing professional development, interprofessional education or integration into campus-based blended learning curricula. In this twelve tips article, we aim to provide a framework for readers to use when developing, delivering and evaluating a MOOC within medical education based on the literature and our own experience. Practical advice is provided on how to design the appropriate curriculum, engage with learners on the platform, select suitable assessments, and comprehensively evaluate the impact of your course.


Assuntos
Currículo , Educação a Distância , Educação Médica/métodos , Internet , Ensino , Humanos , Aprendizagem
17.
Oncotarget ; 7(17): 23581-93, 2016 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-26993768

RESUMO

Benign prostatic hyperplasia (BPH) is a common chronic non-malignant condition whose prevalence substantially increases with age. Immune cell infiltration and pro-inflammatory mediators have been implicated in the pathogenesis. Here, we characterized 21 extracellular markers on prostate-infiltrating lymphocytes (PILs) and analyzed expression of 26 soluble proteins in prostate tissue obtained from BPH patients (n = 31). These data were correlated with clinical parameters and compared with peripheral blood mononuclear cells (PBMCs) (n = 10). Increased frequencies of T cells expressing co-inhibitory receptors LAG-3, PD-1, TIM-3 or CTLA-4, and co-stimulatory receptors CD28, OX40 or 4-1BB were observed in BPH tissue compared to PBMCs. These findings are consistent with chronic activation and possible functional exhaustion of PILs that may be further augmented by several identified pro-inflammatory factors, such as IL-8 and MCP-1, promoting inflammation and chemotaxis of immune cells to the prostate. Prostate size and plasma prostate-specific antigen levels positively correlated with IL-8 and MCP-1 concentrations, and frequencies of T cells expressing CTLA-4 and TIM-3. It remains to be established whether the link between inflammation and BPH progression supported by our findings reflects a progressive failure of the immune system leading to decreased immune surveillance and development of prostate cancer.


Assuntos
Citocinas/metabolismo , Inflamação/imunologia , Linfócitos do Interstício Tumoral/imunologia , Próstata/imunologia , Hiperplasia Prostática/imunologia , Neoplasias da Próstata/imunologia , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais , Progressão da Doença , Seguimentos , Humanos , Inflamação/metabolismo , Inflamação/patologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Próstata/metabolismo , Próstata/patologia , Hiperplasia Prostática/metabolismo , Hiperplasia Prostática/patologia , Neoplasias da Próstata/metabolismo , Neoplasias da Próstata/patologia , Taxa de Sobrevida
18.
Prostate ; 74(14): 1391-9, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25111297

RESUMO

BACKGROUND: Benign prostatic hyperplasia (BPH) is the most common benign adenoma and prostate cancer is the most frequent malignancy in men over 50 years of age in the Western world, where it remains a significant health problem. Prostate lesions are known to contain immune cells, which may contribute to the immune control of tumor progression. However, due to their low numbers and restricted access to necessary material it is difficult to isolate immune cells from prostate tissue to characterize their immunological features. METHODS: An efficient and robust method was developed to process prostate tissue and isolate immune cells for phenotypic analysis by multicolor flow cytometry as downstream application. Fresh prostate tissue from 11 patients undergoing surgery for bladder outlet obstruction due to BPH was processed to evaluate the number, viability, yield, and frequency of various immune cell types. RESULTS: The presented method does not include enzymatic digestion nor incubation steps at 37 °C, increasing cellular viability and avoiding possible phenotypic modification. Various immune cell populations were detected in all patient samples and the median cellular viability was 90%. The number of detected events of individual cell populations varied between patients. The median frequency of different immune cell populations also varied, being 87% for the CD3- and 15% for the CD3+ cell population. CONCLUSIONS: This novel method will allow the phenotypic characterization of immune cell populations present in tumor tissue of prostate cancer patients and promote development of novel approaches to immunotherapy of the disease.


Assuntos
Neoplasias da Próstata/imunologia , Idoso , Idoso de 80 Anos ou mais , Citometria de Fluxo/métodos , Humanos , Imunofenotipagem , Masculino , Pessoa de Meia-Idade , Neoplasias da Próstata/patologia
19.
Clin Teach ; 11(3): 219-24, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24802925

RESUMO

BACKGROUND: Our aim was to develop, introduce and evaluate a new clinical interdisciplinary teaching and learning activity (TLA) using modern pedagogical principles. METHOD: All fourth-year students at the clinical course in basic surgery at Karolinska University Hospital in Huddinge participated. Fifteen urological and 15 colorectal pictures were presented. All pictures had a correlating statement on a sheet. The assignment was to correlate each picture with the best possible statement. Peer as well as teacher discussions were permitted. A facilitated discussion about the pictures followed. Evaluation was performed by questionnaire. The final examination results of the course were analysed. RESULTS: Over 80 per cent of the medical students evaluated the seminar (n = 199). The general opinion of the TLA was 8.79 on a 10-point graded visual digital scale (1, bad; 10, excellent). The student self-assessed level of enjoyment and of the activity was 9.0 and 8.5, respectively. Nine out of 10 students rated the Medical Exhibition Seminar 'as good as' (24%) or 'better than' (64%) traditional lecturing, and 73 and 63 per cent, respectively, rated it 'as good as' or 'better than' case method teaching (case) and problem-based learning (PBL). The method did not change the final examination results. CONCLUSION: Medical Exhibition Seminar teaching is a learner-centred and problem-based teaching method that should be included in our pedagogical toolbox. It is designed to be an effective, efficient and modern pedagogical tool suitable for our modern health care system.


Assuntos
Educação de Pós-Graduação em Medicina/métodos , Aprendizagem Baseada em Problemas/métodos , Procedimentos Cirúrgicos Operatórios/educação , Currículo , Feminino , Humanos , Masculino , Suécia
20.
Scand J Urol ; 47(1): 38-42, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23323791

RESUMO

OBJECTIVE: The objective of this study was to examine the correlation between endourological simulator performance and demonstrated theoretical knowledge in the basic surgical sciences. MATERIAL AND METHODS: In total, 158 fourth year medical students participated in the study, 83 females and 75 males, all surgical novices. All students performed the flexible endoscopic task Hall of Fame in the urological simulator URO Mentor™. Later during the same semester all students took the final theoretical examination in surgery. RESULTS: In female medical students a significant correlation was found between surgical simulator performance and the examination results (r = -0.22, p = 0.04). There was no statistically significant correlation when looking at the total study population (r = -0.04, p = 0.58) or when looking at male medical students (r = 0.01, p = 0.9). CONCLUSION: Female medical students completing an endourological simulator task more efficiently passed the theoretical examination in the basic surgical sciences with significantly higher scores than females with low efficiency in the urological simulator. There are likely to be several explanations for this correlation, such as motivation and a lower amount of current video gaming experience.


Assuntos
Competência Clínica/normas , Simulação por Computador/normas , Educação de Graduação em Medicina/normas , Avaliação Educacional/métodos , Endoscopia/métodos , Procedimentos Cirúrgicos Urológicos/métodos , Adulto , Avaliação Educacional/normas , Feminino , Humanos , Masculino , Motivação , Valor Preditivo dos Testes , Fatores Sexuais , Fatores de Tempo , Jogos de Vídeo
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