Mosquito vector competence for dengue is modulated by insect-specific viruses.

Aedes aegypti and A. albopictus mosquitoes are the main vectors for dengue virus (DENV) and other arboviruses, including Zika virus (ZIKV). Understanding the factors that affect transmission of arboviruses from mosquitoes to humans is a priority because it could inform public health and targeted interventions. Reasoning that interactions among viruses in the vector insect might affect transmission, we analysed the viromes of 815 urban Aedes mosquitoes collected from 12 countries worldwide. Two mosquito-specific viruses, Phasi Charoen-like virus (PCLV) and Humaita Tubiacanga virus (HTV), were the most abundant in A. aegypti worldwide. Spatiotemporal analyses of virus circulation in an endemic urban area revealed a 200% increase in chances of having DENV in wild A. aegypti mosquitoes when both HTV and PCLV were present. Using a mouse model in the laboratory, we showed that the presence of HTV and PCLV increased the ability of mosquitoes to transmit DENV and ZIKV to a vertebrate host. By transcriptomic analysis, we found that in DENV-infected mosquitoes, HTV and PCLV block the downregulation of histone H4, which we identify as an important proviral host factor in vivo.

Tracking Bacterial Nanocellulose in Animal Tissues by Fluorescence Microscopy.

The potential of nanomaterials in food technology is nowadays well-established. However, their commercial use requires a careful risk assessment, in particular concerning the fate of nanomaterials in the human body. Bacterial nanocellulose (BNC), a nanofibrillar polysaccharide, has been used as a food product for many years in Asia. However, given its nano-character, several toxicological studies must be performed, according to the European Food Safety Agency's guidance. Those should especially answer the question of whether nanoparticulate cellulose is absorbed in the gastrointestinal tract. This raises the need to develop a screening technique capable of detecting isolated nanosized particles in biological tissues. Herein, the potential of a cellulose-binding module fused to a green fluorescent protein (GFP-CBM) to detect single bacterial cellulose nanocrystals (BCNC) obtained by acid hydrolysis was assessed. Adsorption studies were performed to characterize the interaction of GFP-CBM with BNC and BCNC. Correlative electron light microscopy was used to demonstrate that isolated BCNC may be detected by fluorescence microscopy. The uptake of BCNC by macrophages was also assessed. Finally, an exploratory 21-day repeated-dose study was performed, wherein Wistar rats were fed daily with BNC. The presence of BNC or BCNC throughout the GIT was observed only in the intestinal lumen, suggesting that cellulose particles were not absorbed. While a more comprehensive toxicological study is necessary, these results strengthen the idea that BNC can be considered a safe food additive.

Ureteral duplication with an heterotopic ureteric implantation: a less common cause of adult urinary incontinence.

A 25-year-old woman with a history of frequent urinary tract infections and dribbling urinary incontinence since early childhood was referred to our urology clinic. An accurate investigation revealed a complete right ureteral duplication, with a dysplastic upper-pole renal moiety and an ectopic right ureter draining into the vagina. The patient underwent surgical exploration which confirmed the diagnosis. It was also possible to see a communication between renal moieties which allowed for a laparoscopic ligation and excision of the heterotopic right ureter. The patient had a good recovery, with a complete resolution of her complaints and a great improvement of her quality of life.

Data Improvement Model Based on ECG Biometric for User Authentication and Identification.

The rapid spread of wearable technologies has motivated the collection of a variety of signals, such as pulse rate, electrocardiogram (ECG), electroencephalogram (EEG), and others. As those devices are used to do so many tasks and store a significant amount of personal data, the concern of how our data can be exposed starts to gain attention as the wearable devices can become an attack vector or a security breach. In this context, biometric also has expanded its use to meet new security requirements of authentication demanded by online applications, and it has been used in identification systems by a large number of people. Existing works on ECG for user authentication do not consider a population size close to a real application. Finding real data that has a big number of people ECG's data is a challenge. This work investigates a set of steps that can improve the results when working with a higher number of target classes in a biometric identification scenario. These steps, such as increasing the number of examples, removing outliers, and including a few additional features, are proven to increase the performance in a large data set. We propose a data improvement model for ECG biometric identification (user identification based on electrocardiogram-DETECT), which improves the performance of the biometric system considering a greater number of subjects, which is closer to a security system in the real world. The DETECT model increases precision from 78% to 92% within 1500 subjects, and from 90% to 95% within 100 subjects. Moreover, good False Rejection Rate (i.e., 0.064003) and False Acceptance Rate (i.e., 0.000033) were demonstrated. We designed our proposed method over PhysioNet Computing in Cardiology 2018 database.

Sexual Dysfunction and Satisfaction in Kidney Transplant Patients.

INTRODUCTION: 10% of the world's population suffers from chronic kidney disease. Kidney transplants provide an improvement in the quality of life of those patients. Sexual dysfunction is common after kidney transplantation, and its etiology is presumed to be multifactorial. It has a negative impact on sexual satisfaction and health-related quality-of-life. The integration of a new organ into the body can imply an adjustment of body image, which may eventually have a negative influence on intimacy and sexual behaviors. AIM: To evaluate male sexual function, sexual satisfaction, and body image satisfaction among a convenience sample of patients who have had a kidney transplant. METHODS: This is a cross-sectional study that included 460 patients, from a single healthcare center, who had undergone a kidney transplant procedure >4 weeks ago. A total of 112 respondents (mean = 55.5 years, SD = 11.4) answered the questionnaires properly. MAIN OUTCOME MEASURES: All recruited patients answered a self-reported sociodemographic questionnaire, in addition to the International Index of Erectile function, the New Scale of Sexual Satisfaction, the Brief Symptom Inventory, and the Body Image Scale. RESULTS: A correlation was found between sexual function and sexual satisfaction (r = 0.598, P < .001, n = 112), as well as between body image satisfaction and sexual function (r = -0.193, P = .042, n = 112). The length of time after a kidney transplant (≤ or >36 months) was not associated with a difference in sexual functioning or sexual satisfaction. CLINICAL IMPLICATIONS: This study showed the obvious implications of sexual function on sexual satisfaction, which should alert healthcare professionals to the importance of identifying and managing sexual dysfunction in patients with chronic kidney disease, to optimize their global and sexual health satisfaction. STRENGTH & LIMITATIONS: This study identified a high prevalence of sexual dysfunction among kidney transplant recipients. This should reinforce the need for the medical community to evaluate the quality-of-life domains of patients with chronic disease. There is still a lack of information concerning any longitudinal evaluation of kidney transplant patients' sexual function and the effects that this surgery has on sexuality. CONCLUSIONS: This study corroborated the severe effects that kidney transplant patients often report regarding their sexuality. Among the patients who participated in the study, sexual function proved to be relevant in relation to sexual satisfaction. Mota RL, Fonseca R, Santos JC, et al. Sexual Dysfunction and Satisfaction in Kidney Transplant Patients. J Sex Med 2019;16:1018-1028.

O impacto económico da prevenção de úlceras de pressão num hospital universitário / The economic impact of pressure ulcers prevention in a university hospital

Objetivo: As úlceras de pressão constituem uma condição evitável que se traduz numa diminuição da qualidade de vida do doente. Simultaneamente representam um acréscimo nos custos para os serviços de saúde, associados ao aumento do tempo de internamento. A investigação é fundamental para justificar a prevenção enquanto medida de sustentabilidade e melhoria dos cuidados de saúde. O estudo visa estimar o efeito individual das diferentes categorias das úlceras de pressão no incremento do tempo de internamento hospitalar e os ganhos em saúde que derivam da intervenções autónomas e independentes dos enfermeiros do domínio da prevenção das UP. Métodos: A determinação do impacto incremental das diferentes categorias das UP no tempo de internamento é obtida por uso de um modelo econométrico concebido para esse fim. Os ganhos em saúde são determinados com o uso da equação preconizada pela ordem profissional dos enfermeiros (OE). Resultados: O impacto incremental das diferentes categorias de UP no internamento hospitalar é por ordem crescente de severidade clínica da UP de 1,05 dias; 1,64 dias; 3,53 dias e 10,29 dias. Estima-se que tenha sido prevenido o incremento de 2977,61 dias de internamento hospitalar, em resultado da prevenção das úlceras de pressão. Conclusão: É possível incrementar os ganhos em saúde e contribuir na redução do impacto das UP no internamento hospitalar ao clinicamente indispensável através da maximização na efetividade diagnóstica.

Objective: Pressure ulcers are an avoidable condition that results in a decrease in the health related quality of life of the client. At the same time, they represent an increase in costs for health services associated with an increase in length of hospital stay. Research in this area is fundamental to justify prevention as a measure of sustainability and improvement of health care. The study aims to estimate the individual effect of the different categories of pressure ulcers on the increase of hospitalization time and the health gains derived from autonomous and independent interventions of nurses in the field of PU prevention. Methods: The determination of the incremental impact of the different UP categories in the length of stay is obtained by using an econometric model designed for this purpose. Health gains are determined using the equation recommended by the professional order of nurses (OE). Results: The incremental impact of the different categories of PU on hospital admission is in ascending order of clinical severity of PU of 1.05 days; 1.64 days; 3.53 days and 10.29 days. It is estimated that an increase of 2977.61 days of hospitalization was prevented, as a result of the prevention of pressure ulcers. Conclusion: It is possible to increase the health gains and contribute in reducing the impact of PUs in hospital admission to the clinically indispensable by maximizing the diagnostic effectiveness.

[Andrology - Whom and how are patients being referred?] / A referenciação para a consulta de andrologia ­ Quem e como são referenciados?

INTRODUCTION: Andrology focuses in male sexual and fertility diseases. Its referral should be thoughtful and tailored in order to select the correct cases. OBJECTIVES: The aim of this work was to evaluate the referral to our department and improvement points. MATERIAL AND METHODS: A retrospective analysis was performed of the Andrology consults between January 2014 and December 2015. RESULTS: We evaluated 96 of the 102 consults performed. About 60% of patients were referred with erectile dysfunction complaints, 15% with penile curvature and 8% with ejaculatory dysfunction. About 27% had previously tried phosphodiesterase 5 inhibitor, and 40% lacked recent metabolic workup. DISCUSSION: The high prevalence of sexual complaints coupled with a high number of naïve patients could be due to difficulties by the referral doctors when analyzing and characterizing male sexual dysfunction according to the current sexual response cycle model. The lack of patient categorization accordingly to Princeton criteria (III) shows the difficulties found when selecting patients to start the first line of treatment for erectile dysfunction. CONCLUSION: Sexual dysfunction are highly prevalent in the general population. Healthcare providers should improve diagnostic and treatment skills in this field of Urology.

Female urinary incontinence and sexuality

ABSTRACT Urinary incontinence is a common problem among women and it is estimated that between 15 and 55% of them complain of lower urinary symptoms. The most prevalent form of urinary incontinence is associated with stress, followed by mixed urinary incontinence and urge urinary incontinence. It is a symptom with several effects on quality of life of women mainly in their social, familiar and sexual domains. Female reproductive and urinary systems share anatomical structures, which promotes that urinary problems interfere with sexual function in females. This article is a review of both the concepts of female urinary incontinence and its impact on global and sexual quality of life. Nowadays, it is assumed that urinary incontinence, especially urge urinary incontinence, promotes anxiety and several self-esteem damages in women. The odour and the fear of incontinence during sexual intercourse affect female sexual function and this is related with the unpredictability and the chronicity of incontinence, namely urge urinary incontinence. Female urinary incontinence management involves conservative (pelvic floor muscle training), surgical and pharmacological treatment. Both conservative and surgical treatments have been studied about its benefit in urinary incontinence and also the impact among female sexual function. Unfortunately, there are sparse articles that evaluate the benefits of female sexual function with drug management of incontinence.

Female urinary incontinence and sexuality.

Urinary incontinence is a common problem among women and it is estimated that between 15 and 55% of them complain of lower urinary symptoms. The most prevalent form of urinary incontinence is associated with stress, followed by mixed urinary incontinence and urge urinary incontinence. It is a symptom with several effects on quality of life of women mainly in their social, familiar and sexual domains. Female reproductive and urinary systems share anatomical structures, which promotes that urinary problems interfere with sexual function in females. This article is a review of both the concepts of female urinary incontinence and its impact on global and sexual quality of life. Nowadays, it is assumed that urinary incontinence, especially urge urinary incontinence, promotes anxiety and several self-esteem damages in women. The odour and the fear of incontinence during sexual intercourse affect female sexual function and this is related with the unpredictability and the chronicity of incontinence, namely urge urinary incontinence. Female urinary incontinence management involves conservative (pelvic floor muscle training), surgical and pharmacological treatment. Both conservative and surgical treatments have been studied about its benefit in urinary incontinence and also the impact among female sexual function. Unfortunately, there are sparse articles that evaluate the benefits of female sexual function with drug management of incontinence.

Acquired male urethral diverticulum: a rare entity treated in a one-stage procedure.

Acquired male urethral diverticulum is a rare entity with most of the literature revolving around case reports or small case series. Up to two-thirds of cases are acquired, mostly as a result of trauma, stricture or infection. Infrequently, some cases develop as a complication of urological procedures, or even penile clamping. We present the case of an adult male with lower urinary tract symptoms, recurrent urinary infections and a history of multiple surgeries to treat a complicated perineal fistulae disease. With the help of imaging techniques, a bulbar urethral diverticulum was discovered. Owing to the symptomatic nature of the diverticulum, an open procedure was performed with excision and primary urethral anastomosis. No urinary symptoms were reported and follow-up imaging and flowmetry demonstrated very good functional outcome.

The management of bilateral cryptorchidism in the adult man: report of two cases.

OBJECTIVE: Undescended testis or cryptorchidism is a pathology usually presenting in the newborn or during childhood, rarely diagnosed in the adult man. This article pretends to perform a review of its management in the adulthood. METHODS: We present two cases of man with bilateral congenital cryptorchidism diagnosed in the adult. We made a review of the management of this condition in the adult male, based in a research performed in PubMed database. CONCLUSIONS: With the use of laparoscopy in the management of men with cryptorchidism, the diagnostic and therapeutic approach in this pathology doesn't differ from that used in childhood. Surgical management is based in the localization of the testis in physical exploration, the risk of testicular cancer and the viability of the gonad in its exploration. Hormonal replacement therapy and fertility preservation techniques should be offered in selected cases to optimize patient health and desires.