Combination of low doses of mirtazapine plus venlafaxine produces antidepressant-like effects in rats, without affecting male or female sexual behavior.

RATIONALE: Pharmacological treatments for depression are not always effective and produce unwanted side effects. Male and female sexual dysfunction is one of these side effects, which can lead to treatment withdrawal. Combination of two antidepressants with different mechanisms of action, like mirtazapine (MTZ) and venlafaxine (VLF) have been shown to be effective for treatment-resistant depression in humans. Combination of low doses of these drugs may still exert antidepressant-like effects without altering sexual behavior. OBJECTIVES: To investigate the potential antidepressant-like effect of the chronic administration of low doses of MTZ plus VLF combined, as well as its impact on male and female sexual behavior in rats. METHODS: The antidepressant-like effect of a 14-day treatment with combinations of MTZ plus VLF (0/0, 2.5/3.75 or 5/7.5 mg/kg) was assessed in young adult male and female rats in the forced swim test (FST). The 5/7.5 mg/kg MTZ/VLF combination was also tested in the chronic mild stress (CMS) test, in both males and females treated for 21 days. The sexual effects of this last treatment were assessed in sexually experienced males and in gonadally-intact females during proestrus. RESULTS: The 5/7.5 mg/kg MTZ/VLF combination produced an antidepressant-like effect in the FST and reversed the CMS-induced anhedonia in both male and female rats. This combination did not alter male sexual behavior, female proceptive and receptive behaviors or the regularity of the estrous cycle. CONCLUSION: The combination of low doses of MTZ and VLF might be a promising therapeutic alternative to treat depression without affecting the sexual response.

Conductas sexuales protectoras en estudiantes universitarios de primer año de una universidad de Chillán, Chile / Protective Sexual Behaviors in First-Year University Students at a University in Chillán, Chile

Objetivo: Determinar las conductas sexuales protectoras en estudiantes de una universidad de Chillán, Chile. Métodos: Estudio cuantitativo, descriptivo con un muestreo probabilístico por conveniencia de 234 estudiantes universitarios, para los criterios de inclusión destaca haber iniciado actividad sexual. La recolección de datos fue a través de Google forms. El instrumento utilizado fue "Cuestionario de conducta sexual segura". Resultados: Del total de los alumnos encuestados el 64,1 % son mujeres. En cuanto al estado civil, el 93,5 % se identifica soltero. Solo el 47,4 % detiene la actividad sexual para utilizar condón. El 80,8 % evita relaciones sexuales en la primera cita, un 81,6 % nunca tienen relaciones anales sin condón, y el 99,6 % nunca ha tenido sexo con personas que utilizan drogas. Se encontró que la media para conducta sexual protectora es de 70,2 %. Conclusión: Los encuestados presentan conductas sexuales protectoras(AU)

Objective: To determine protective sexual behaviors in students at a university in Chillán, Chile. Methods: Quantitative, descriptive study with a probability sampling by convenience of 234 university students, for the inclusion criteria it stands out to have initiated sexual activity. Data collection was through Google form. The instrument used was the "Safe sexual behavior questionnaire". Results: Of the total students surveyed, 64.1% are women. Regarding marital status, 93.5% identify themselves as single. Only 47.4% stop sexual activity to use a condom. 80.8% avoid sexual relations on the first date, 81.6% never have anal relations without a condom, and 99.6% have never had sex with people who use drugs. It was found that the mean for protective sexual behavior is 70.2 %. Conclusion: The respondents present protective sexual behaviors(AU)

Pubertal stress in male rats: Effects on juvenile play behavior and adult sexual partner preference.

Puberty is a period of brain organization impacting the expression of social and sexual behaviors. Here, we assessed the effects of an acute pubertal stressor (immune challenge) on the expression of juvenile play (short-term) and sexual partner preference (long-term) in male rats. Juvenile play was assessed over ten trials at postnatal days (PND) (31-40) with age- and sex-matched conspecifics, and at PND35 males received a single injection of lipopolysaccharide (LPS, 1.5 mg/kg i.p.) or saline. Then, sexual partner preference was assessed at PND 60, 64, and 68, in a three-compartment chamber with a sexually receptive female and a male as potential partners simultaneously. The results confirmed that a single injection of LPS during puberty induced sickness signs indicative of an immune challenge. However, juvenile play was not affected by LPS treatment during the following days (PND36-40), nor was sexual behavior and partner preference for females in adulthood. These findings highlight that, while other studies have shown that LPS-induced immunological stress during puberty affects behavior and neuroendocrine responses, it does not affect juvenile play and sexual behavior in male rats. This suggests a remarkable resilience of these behavioral systems for adaptation to stressful experiences mediated by immune challenges during critical periods of development. These behaviors, however, might be affected by other types of stress.

Mating behavior and oviposition of Palpita forficifera (Lepidoptera: Crambidae).

Palpita forficifera Munroe, 1959 (Lepidoptera: Crambidae) is considered the main pest of the olive tree (Olea europaea L., Oleaceae) in Brazil and Uruguay. The aim of this work was to study the mating and oviposition behavior of P. forficifera in the field and laboratory. In the field, the sex emitting the mating pheromone was determined and in the laboratory, the rate of emergence of males and females; the age, time and duration of mating; number of copulations and oviposition time of P. forficifera were recorded. The field results showed that it was possible to capture up to five males per trap in just one night in traps with the presence of female P. forficifera. Copulation occurs between the seventh and twenty-third day of life and is most frequent during the third and sixth hours of scotophase. The average duration of the first copulation was 174 min, with 35% of couples recopulating, and there were cases of up to five copulations. Oviposition times were concentrated between 20:00 and 02:00. The results obtained provide insight into the reproductive behavior of P. forficifera and are useful for future studies aimed at identifying the sex pheromone to improve monitoring of the pest in olive orchards.

HIV Treatment Optimism Moderates the Relationship between Sexual Risk Behavior and HIV Risk Perception among Urban HIV-negative Gay, Bisexual, and Other Men who have Sex With Men.

Using baseline data of the Engage Cohort Study, a Canadian study of sexually active gay, bisexual and other men who have sex with men (GBM), we evaluated the association between sexual behavior and risk perception among HIV-negative participants and whether HIV treatment optimism moderated this relationship. Participants were recruited by respondent-driven-sampling (RDS). We defined high-risk sexual behavior in the past six months as any condomless anal sex with a casual partner (i.e. not the participant's main partner) with either unknown HIV-status where neither used pre-exposure prophylaxis or with a partner living with HIV having detectable/unknown viral load. We assessed HIV treatment optimism-skepticism using a 12-item scale. RDS-II-weighted adjusted logistic regression models examined associations with risk perception measured by the question "How would you assess your current risk of getting HIV?" (response options were on a 6-point Likert-scale ranging from "very unlikely" to "very likely", dichotomized into "No Perceived Risk" (very unlikely/unlikely) and "Perceived Risk" (somewhat likely/likely/very likely/I think I already have HIV). Of 1961 participants, engagement in high-risk sexual behavior was reported by 155 (17.0%), 62 (12.4%), 128 (17.2%) of participants in Montréal, Toronto, and Vancouver, respectively. High-risk sexual behavior increased the odds of perceived HIV risk (pooled adjusted odds ratio = 2.9, 95%CI = 2.2-3.8). HIV treatment optimism-skepticism scores moderated the relationship: for GBM engaging in high-risk sexual behavior, higher HIV treatment optimism-skepticism scores increased perceived HIV risk. Promoting awareness around advances related to HIV prevention and treatment is important for appropriate risk assessment and for increased engagement in prevention interventions.

RESUMEN: Evaluamos la asociación entre el comportamiento sexual y la percepción de riesgo entre los participantes VIH negativos y si el optimismo sobre el tratamiento del VIH moderó esta asociación. Definimos comportamiento sexual de alto riesgo en los últimos seis meses como cualquier sexo anal sin condón con una pareja casual con un estado de VIH desconocido donde ninguno utilizó profilaxis previa a la exposición o con una pareja que vive con el VIH y que tiene una carga viral detectable/desconocida. Se evaluó el optimismo sobre el tratamiento del VIH mediante una escala de 12 ítems. Los modelos de regresión logística ajustados examinaron las asociaciones con la percepción del riesgo ("Riesgo no percibido" vs. "Riesgo percibido"). De 1961 participantes, 155 (17,0%), 62 (12,4%), 128 (17,2%) de los participantes en Montreal, Toronto y Vancouver, informaron comportamiento sexual de alto riesgo. El comportamiento sexual de alto riesgo se mostró asociado con riesgo percibido. El optimismo sobre el tratamiento modero la asociación. Promover la conciencia sobre los avances relacionados con la prevención y el tratamiento del VIH es importante para una evaluación adecuada de los riesgos y una mayor participación en las intervenciones de prevención.

A review of published studies on virtual reality in sexuality research.

INTRODUCTION: Virtual reality (VR) technology contributes to greater approach of methodological safety to make ecological validity more feasible and a growing interest in sexuality behaviors. OBJECTIVES: The aim of this study was to show VR in the sexuality area by a comprehensive review of outcomes, offer a synthesis of the studies, and make a methodological quality assessment of finding results. A secondary goal was to investigate the effect of immersion on diverse sexual responses outcomes. METHODS: We designed a review based on a systematic review strategy describing types of studies, participants, data collection and outcomes; searched in 4 electronic databases (PubMed, EMBASE, PsycINFO, and SciELO), and made a full-text screening process. RESULTS: The study found 18 articles that met research criteria synthesized within 3 outcome groups: erection measures, level of immersion, and biomarker studies. Synthesis shows a lack of methodological aspects that impair results, such as description of methods from bias protection, randomization, or concealment. The literature still needs to improve its methodology, even though it already shows relevant data for intervention in sexual dysfunction, forensic psychiatry, sexual attraction, orientation, and use of pornography. CONCLUSION: Current methodological issues need better design to highlight relevant issues in sexuality with stronger quality of design, opening boundaries to new diagnostic or interventional technologies to sexual health.

HIV Risk Behaviors and the Use of Geosocial Networking Dating Apps among Men Who have Sex with Men and Transgender Women in Lima, Peru: a Cross-Sectional Study.

Geosocial networking dating apps (GSN apps) are an increasingly widespread technology used by populations throughout the world to facilitate sexual encounters. Studies from a variety of settings suggest a possible association between GSN app use and HIV risk behaviors, including among sexual and gender minority populations such as men who have sex with men (MSM) and transgender women (TW). However, it remains unclear to what extent GSN apps play a causal role. We explored the relationship between GSN app use and sexual risk behaviors among MSM and TW in Lima, Peru by analyzing data from a multi-site cross-sectional survey assessing both general and partner-specific sexual behaviors. We performed bivariate analysis to estimate the association of GSN app use with different individual and partner-specific factors, then fit multivariable regression models adjusting for age and education. Among 741 total participants (698 MSM, 43 TW), 64% met at least one sex partner in the prior three months using a GSN app. GSN app users were significantly more likely to report engaging in HIV risk behaviors in general, including condomless receptive anal sex, group sex, transactional sex, and sex under the influence of alcohol or drugs. Having condomless anal sex with a given partner was not associated with meeting that partner via GSN app. These findings highlight GSN app users as a particularly vulnerable subpopulation among MSM and TW in Lima. GSN apps could provide a useful vehicle for targeted HIV prevention efforts for priority populations in Peru.

RESUMEN: Las aplicaciones de citas de redes geosociales (aplicaciones GSN) son una tecnología con creciente alcance en todo el mundo usadas para facilitar encuentros sexuales. Diferentes estudios sugieren una posible relación entre uso de aplicaciones GSN y comportamientos de riesgo para VIH entre hombres que tienen sexo con hombres (HSH) y mujeres transgénero (MT). No es claro hasta qué punto aplicaciones GSN tendrían un papel causal directo. Exploramos la relación entre uso de aplicaciones GSN y comportamientos sexuales de riesgo entre HSH y MT en Lima, Perú, analizando datos de una encuesta transversal que evaluó comportamientos sexuales en general y en parejas específicas. Realizamos análisis bivariable para estimar la asociación del uso de aplicaciones GSN con diferentes factores individuales y específicos de la pareja. También aplicamos modelos de regresión multivariables ajustados por edad y educación. Entre 741 participantes totales (698 HSH, 43 MT), 64% conoció al menos a una pareja sexual en los últimos tres meses mediante una aplicación GSN. Los usuarios de aplicaciones GSN fueron significativamente más propensos a reportar comportamientos de riesgo de VIH en general, incluyendo sexo anal receptivo sin condón, y sexo grupal, transaccional y bajo influencia de alcohol o drogas. Tener sexo anal sin condón con una pareja determinada no se asoció con conocer a esa pareja mediante aplicación GSN. Estos hallazgos muestran a usuarios de aplicaciones GSN como una subpoblación particularmente vulnerable entre HSH y MT en Lima. Aplicaciones GSN podrían ser útiles para iniciativas de prevención del VIH en poblaciones prioritarias en Perú.

Jovens universitários e a vulnerabilidade masculina às infecções sexualmente transmissíveis / Young college students and male vulnerability to sexually transmitted infections / Jóvenes estudiantes universitarios y vulnerabilidad masculina a las infecciones de transmisión sexual

Objetivo: analisar os comportamentos sexuais e as práticas de prevenção de infecções sexualmente transmissíveis de estudantes universitários do sexo masculino. Métodos: estudo descritivo, quantitativo, transversal, realizado em uma universidade privada, no Rio de Janeiro, Brasil. Foi selecionada uma amostra intencional de 126 estudantes, da área de ciências humanas, na faixa etária de 18 a 29 anos. Foram atendidos todos os aspectos éticos e legais em pesquisa. Resultados: Estudantes na faixa etária entre 18-21 anos representaram 76,19% dos participantes; a maioria teve a primeira relação sexual entre 12-16 anos (71,68%) e possuíam parceiros sexuais - fixos (75,24%) e casuais (73,33%). Usaram preservativos: na sexarca 66,37% e com parceiros casuais 63,64%; não o utilizavam em todas as relações sexuais 61,06% dos participantes. Conclusão: as vulnerabilidades apontam a necessidade de estímulos à adoção de práticas profissionais voltadas à educação em saúde do homem sobre as Doenças Sexualmente Transmissíveis. (AU)

Objective: analyze the sexual behaviors and sexually transmitted infections prevention practices of male university students. Methods: descriptive, quantitative, cross-sectional study carried out at a private university in Rio de Janeiro, Brazil. An intentional sample of 126 students in the humanities, aged 18 to 29 years, was selected. All ethical and legal aspects of research were met. Results: Students aged between 18-21 years represented 76.19% of participants; most had their first sexual intercourse between 12-16 years old (71.68%) and had sexual partners - steady (75.24%) and casual (73.33%). Condoms were used: 66.37% at sexarche and 63.64% with casual partners; 61.06% of the participants did not use it in all sexual relations. Conclusion: the vulnerabilities point to the need to encourage the adoption of professional practices aimed at men's health education on Sexually Transmitted Diseases. (AU)

Objetivo: analizar los comportamientos sexuales y las prácticas de prevención de infecciones de transmisión sexual de estudiantes universitarios varones. Métodos: estudio descriptivo, cuantitativo, transversal, realizado en una universidad privada de Río de Janeiro, Brasil. Se seleccionó una muestra intencional de 126 estudiantes de humanidades, de 18 a 29 años. Se cumplieron todos los aspectos éticos y legales de la investigación. Resultados: Los estudiantes de 18 a 21 años representaron el 76,19% de los participantes; la mayoría tuvo su primera relación sexual entre los 12-16 años (71,68%) y tuvo parejas sexuales, estables (75,24%) y casuales (73,33%). Se utilizaron condones: 66,37% en sexarche y 63,64% con parejas casuales; El 61,06% de los participantes no lo utilizó en todas las relaciones sexuales. Conclusión: las vulnerabilidades apuntan a la necesidad de incentivar la adopción de prácticas profesionales orientadas a la educación para la salud de los hombres en Enfermedades de Transmisión Sexual. (AU)

Chemsex among men who have sex with men during the Mpox health crisis in Brazil: A nationwide web survey.

OBJECTIVE: To understand the factors associated with the practice of chemsex among MSM in Brazil, especially during the Mpox health crisis, and to design effective prevention and intervention strategies specifically for this population. DESIGN: A cross-sectional and analytical study using an electronic survey, conducted from September to December 2022, during the peak of the Mpox outbreak in Brazil. SAMPLE: A total of 1452 MSM aged 18 and older. MEASUREMENTS: Data were collected via the REDCap platform through a survey with 46 questions. These addressed demographic data, sexual affiliations, practices, experiences with Mpox, healthcare service usage, and stigma or fear related to Mpox. RESULTS: The prevalence of chemsex was 19.42% (n = 282). Multivariate Poisson modeling indicated a high incidence of chemsex among those diagnosed with Mpox and those involved in high-risk behaviors. The practice of chemsex was six times higher among those diagnosed with Mpox (95% CI: 4.73-9.10). MSM who engage in bugchasing had a prevalence twice that of the main outcome (95% CI: 1.31-3.16). CONCLUSION: There is a significant need for targeted interventions for MSM in Brazil, especially given the Mpox outbreak. This study highlights the strong relationships between chemsex, experiences with Mpox, and various sexual behaviors, underscoring the importance of effective public health initiatives.

Effect of Arthrospira (Spirulina) maxima on Cadmium-Chloride-Induced Alterations in Sexual Behavior and Fertility in Male Wistar Rats.

Chronic exposure to potentially toxic elements (PTEs) such as cadmium (Cd) leads to male reproductive toxicity through the generation of oxidative stress. Spirulina Arthrospira maxima (AM) is a cyanobacterium that has been consumed since ancient times for its high nutritional value, and in recent years for its antiviral, hepatoprotective, hypoglycemic, anticancer, and antioxidant effects, among others. This study aimed to evaluate the effects of AM against the damage to reproductive health induced by Cd. A total of 48 10-week-old sexually experienced male Wistar rats were distributed in five groups (n = 8): control; vehicle (tween-water); cadmium chloride (CdCl2) 5 mg/kg; and three doses of AM (100, 200 and 400 mg/kg) + CdCl2 5 mg/kg. All treatments were orally administered once a day for 36 consecutive days. At the end, sexual behavior was evaluated, and semen, testicle, and blood samples were obtained to analyze sperm quality, enzymatic activity, and testosterone levels, respectively. Rats exposed to Cd showed a decrease in sexual behavior, as well as in the quality of reproductive health, and an increase in oxidative stress; while rats exposed simultaneously to AM + Cd showed an improvement in all this parameters. Based on our results, we believe that the mechanism by which AM exerts its effect could be attributed to the presence of phycobiliproteins. These compounds are responsible for exerting an antioxidant effect and chelating effect on elements such as Cd.

Human Papillomavirus (HPV) Infection and Risk Behavior in Vaccinated and Non-Vaccinated Paraguayan Young Women.

Cervical cancer is a global health concern and ranks fourth among the most prevalent cancers in women worldwide. Human papillomavirus (HPV) infection is a known precursor of cervical cancer and preventive measures include prophylactic vaccines. This study focused on sexually active Paraguayan women aged 18-25 years, exploring the intersection of HPV vaccination and sexual behavior. Among 254 participants, 40.9% received the Gardasil-4 vaccine, with no significant differences in sexual behavior between the vaccinated and unvaccinated sexually active groups. However, a notable decrease in the prevalence of HPV among the vaccinated women highlights the efficacy of this vaccine in reducing infections. The prevalence of any HPV type was 37.5% in vaccinated participants compared to 56.7% in unvaccinated participants (p = 0.0026). High-risk HPV types showed a significant difference, with a prevalence of 26.0% in vaccinated women compared with 52.7% in unvaccinated women (p < 0.001). Although a potential decline in genital warts was observed among the vaccinated individuals, statistical significance (p = 0.0564) was not reached. Despite the challenges in achieving high vaccination coverage, the observed reduction in HPV prevalence underscores the importance of ongoing monitoring, healthcare professional recommendations, and comprehensive risk management. These findings contribute to dispelling concerns about HPV vaccination influencing sexual behavior, advocating further large-scale research to explore the impact of vaccines on various HPV types and potential cross-protection.

Effects of chronic mild stress induced from peripuberty on sexual behavior in male rats, with or without escitalopram treatment.

BACKGROUND: After the Coronavirus Disease pandemic, depression became more present, including in adolescents. Escitalopram, a selective serotonin reuptake inhibitor, was approved in 2009 for treatment of the major depressive disorder, both in children and adolescents. The undesirable effects of antidepressants on sexual dysfunction are usually underestimated. AIMS: To investigate the effects of chronic mild stress, induced from peripuberty up to adulthood, on male sexual behavior parameters, with or without the escitalopram treatment, using rats as experimental model in a translational study. MATERIALS AND METHODS: Forty-four peripubertal male rats were distributed into four groups: Sham control, escitalopram, stress, and stress + escitalopram. The chronic mild stress consisted of nine different stressors randomly applied one per day, for 8 weeks (from 41 to 97 days postpartum). Escitalopram therapy by gavage (10 mg/kg) started at 70 days postpartum and lasted for 4 weeks. The male sexual behavior parameters were evaluated at 114 days postpartum. After that, euthanasia was performed for blood and testis collection. Histopathology of the testes and plasmatic testosterone level were carried out. RESULTS: There was a reduction in sexual activity and motivation in rats exposed to the stress protocol, which were treated or not with escitalopram, as well as an increase in the total number of mounts in animals exposed to the stress and treated with escitalopram. The testosterone levels were lower in animals exposed to the stress, which were or not treated with escitalopram (stress and stress + escitalopram). The frequency of histologically normal seminiferous tubule sections was lower in animals that were exposed to the stress and/or received escitalopram (escitalopram, stress, and stress + escitalopram). CONCLUSION: Chronic mild stress induced from peripuberty, associated or not to escitalopram treatment, altered the testosterone levels and testicular histoarchitecture and seems to be related to the reduction in male sexual motivation.

An exploratory study of the factors associated with use of contraceptive methods in young Chilean women aged 17-29 years.

OBJECTIVE: To explore factors related to the use of contraceptive methods in young Chilean women with higher education. METHODS: Using the 9th Chilean National Youth Survey, multinomial models were conducted to predict contraceptive methods used during the last intercourse among sexually initiated female college students aged 17-29 years who had already completed high school (n = 1828). RESULTS: The results indicate that using contraceptive methods at onset sexual activity was positively associated with the use of all contraceptive methods (relative risk ratio [RRR]immediate = 3.97, RRRdaily = 2.95, RRRlong-term = 1.82, P < 0.05). Having a previous unintended pregnancy increased the odds of using long-term contraceptive methods (RRR = 2.13, P < 0.05). Increased age of sexual initiation was associated with increased odds of using immediate contraception methods (RRRadolescence = 2.57, RRRyoung adulthood = 3.75, P < 0.05). Substance use was not associated with contraception methods used. Medium socioeconomic status, compared with high, decreased the odds of using immediate and daily contraceptive methods (RRR = 0.26, P < 0.05 for both). Low socioeconomic status was associated with decreased odds of using daily contraception (RRR = 0.39, P < 0.05). Finally, incomplete (RRR = 2.21, P < 0.05) or complete (RRR = 2.38, P < 0.05) professional education increased the odds of immediate contraceptive methods. CONCLUSIONS: To generate family planning policies aimed at university students, individual factors related to sexual behavior should be addressed in accordance with the local reality and with a gender focus.

Is there an association between gender stereotypes and sexual risk attitudes and behaviors? A population-based study among Peruvian adolescents.

BACKGROUND: Adolescents, particularly those aged 14 to 15 y, often begin exploring their sexuality, during which time they are more vulnerable to traditional influences and ideologies imposed by society. This study aimed to identify the association between more traditional attitudes toward women and sexual risk attitudes and behaviors in Peruvian adolescents. MATERIALS AND METHODS: Cross-sectional study with data from the fifth round of the Young Lives study with 1860 adolescents aged 14 and 15 y. Population characteristics were described by relative frequencies and using chi-squared test with p-value. The 12 items of the Attitudes toward Women Scale for Adolescents instrument were analyzed by relative frequencies and mean with standard deviation. For further analysis, the values of the global scores of all participants were divided into two categories, using the median as the cutoff point, where the group with higher scores indicated that these adolescents had more traditional attitudes (or more gender stereotypes). More traditional attitudes were associated with sexual risk attitudes and behaviors, with crude prevalence ratio (PR) and then adjusted prevalence ratio (aPR) with 95% CI. The Universidad Privada de Tacna's ethics committee approved the research protocol. RESULTS: Adolescents with more traditional attitudes were more likely to have sexual risk attitudes compared to those with less traditional attitudes. In addition, adolescents with more traditional attitudes were 2.6 times more likely to have at least one sexual intercourse while drunk as compared to the reference group (95% CI: 1.43-4.74; p=0.002). CONCLUSIONS: The expression of more traditional attitudes toward women was associated with sexual risk attitudes. However, there was no association with most of the sexual risk behaviors studied, except for the higher probability of having at least one sexual intercourse while drunk.

Mobile dating apps use and sexual risk behavior among Brazilian undergraduate students.

INTRODUCTION: One of the most popular ways to meet new people in the modern world is through dating apps. However, its use may facilitate casual sexual encounters and quick partner changes, both of which associated to endangering sexual health in different populations. OBJECTIVE: To describe the use of mobile dating apps among undergraduate students at a major Brazilian public university and investigate its associations with sexual risk behaviors and sociodemographic factors. METHODS: This is a cross-sectional study based on a web survey. The link for participation was made available to students enrolled in undergraduate courses in the eight units of the University of São Paulo, Campus Ribeirão Preto. Use of dating apps, sociodemographic/behavioral profile, and sexual risk behaviors were among the variables studied. The distribution of apps users was calculated for each variable of interest, and prevalence ratios (PRs) were used for comparisons. PRs were reported with 95% confidence intervals. RESULTS: A total of 487 students participated, with 32.9% reporting using dating apps. Male participants were more likely to use. The use of dating apps was associated with having multiple sexual partners and risky behaviors such as smoking, alcohol consumption, and substance abuse. CONCLUSION: It is critical to describe the pattern of app use in undergraduate students and understand their influence on sexual health in order to avoid stigmatizing users. Additionally, this information can be helpful in directing the creation of strategies for using these apps as resources to promote health, such as the information-sharing regarding the sexual health.

Spanish Validation of the Long and Short Versions of the Problematic Pornography Consumption Scale (PPCS and PPCS-6) in Adolescents.

Although 1-14% of adolescents may experience problematic pornography use (PPU), psychometrically sound instruments for assessing PPU in Spanish-speaking adolescents are scarce. Given the advantages of the different forms of the Problematic Pornography Consumption Scale (PPCS), the aim of the present study was to assess the psychometric properties of the PPCS and PPCS-6, and to examine associations between PPU and age among boys and girls. Two school-based adolescent samples were recruited in Spain (n = 650; Mage = 16.0 [SD = 1.1]; 50% girls and 50% boys) and Mexico (n1, 160; Mage = 15.8 [SD = 1.1]; 68% girls) to assess the psychometric properties of the PPCS and PPCS-6. Confirmatory factor analysis was applied and convergent and discriminant validity with other measures related to PPU was also tested. The results provided empirical support for the six-factor structure of the PPCS and the one-factor structure of the PPCS-6. Boys with older age showed higher levels of tolerance than girls on the PPCS in both countries. Both the PPCS and the PPCS-6 may be considered valid psychometric instruments for the assessment of PPU in Spanish-speaking adolescents from Spain and Mexico.

Multiparity favors same-sex partner preference in male rats.

Same-sex partner preference is present in many mammals, including rodents. Several possible causal factors have been proposed for the establishment of this preference. The Fraternal Birth Order effect refers to the observation that older brothers increase the probability of homosexuality in men, but no experiment has analyzed this possibility. In this study, partner preference (tested in a three compartments box) and female and male sexual behavior (studied in a cylindrical arena) were evaluated in young male rats (3 months) born to multiparous mothers that had 4-6 previous gestations and around 12 months of age. Control groups were young male rats born to primiparous young (4 months) or aged (12 months) mothers. In the partner preference test, the males born to multiparous dams spent less time interacting with the receptive female and more time interacting with the sexually active male, and a 39% exhibited same-sex partner preference. This high percentage seems related to multiparity of their mothers and not to maternal age, because the males born to primiparous aged females (12 months) showed a similar low proportion of same-sex partner preference than the males born to young (4 months) primiparous females (4%). In the sexual behavior tests, no male born of a multiparous dam and with same-sex preference ejaculated and 54% displayed proceptivity and lordosis. Present results suggest that the fraternal birth order effect may occur also in rats.

Prevalência e fatores associados ao comportamento sexual de risco de adolescentes escolares brasileiros / Prevalence and factors associated with risky sexual behavior among Brazilian school adolescents

Resumo O artigo avaliou a prevalência e fatores associados ao comportamento sexual de risco (CSR) de adolescentes escolares do Brasil. Trata-se de estudo transversal com dados da Pesquisa Nacional de Saúde do Escolar, 2019, com amostra representativa de adolescentes escolares brasileiros do 9º ano do ensino fundamental. Foram avaliadas características sociodemográficas, comportamentais, de saúde sexual e reprodutiva, de saúde mental e de sociabilidade, orientações recebidas na escola e autoimagem corporal. Caracterizou-se o CSR como o não uso de preservativo na última relação sexual. Os dados foram analisados por modelo hierarquizado com regressão robusta de Poisson. A prevalência de CSR foi de 40,3%, com menor proporção na região Norte (37,4%). Houve maior prevalência do CSR entre adolescentes do sexo feminino, cuja primeira relação sexual ocorreu com 13 anos ou menos, que foram vítimas de violência sexual, que praticaram bullying e que usaram drogas ilícitas, cigarro e álcool. Aqueles que usaram preservativo na primeira relação sexual apresentaram menor prevalência de CSR. A alta prevalência de CSR entre adolescentes escolares no Brasil, aliada ao conhecimento dos fatores associados, deve propiciar o estabelecimento de estratégias para favorecer a melhoria na saúde sexual e reprodutiva desses jovens.

Abstract This article evaluated the prevalence and factors associated with risky sexual behavior (RSB) among Brazilian school adolescents. This is a cross-sectional study with data collected from the National Survey of School Health, 2019 edition, with a representative sample of 7th grade of elementary school to 3rd year of high school Brazilian school adolescents. This work evaluated sociodemographic, behavioral, sexual and reproductive health, mental health, sociability characteristics, medical advice received at school, and body image. RSB was characterized as the non-use of a condom during sexual intercourse. The data were analyzed using hierarchical Poisson regression modeling. The prevalence of RSB was of 40.3%, with the lowest proportion appearing in the North region (37.4%). The highest prevalence of RSB was found among female adolescents, whose first sexual intercourse occurred at 13 years of age or under, who were victims of sexual violence, who practiced bullying, and who used illicit drugs, cigarettes, and alcohol. Those who used a condom during their first sexual intercourse showed the lowest prevalence of RSB. The high prevalence of RSB among Brazilian school adolescents, together with the knowledge of the associated factors, serves to define strategies to favor improvements in the sexual and reproductive health of these young people.

Análisis de la actividad sexual en el adulto mayor del Policlínico Universitario Este

Introducción: El contexto social en el cual se desenvuelve la mayoría de los adultos mayores los conduce a situaciones de riesgo, condiciones o problemas de salud con consecuencias físicas, psicológicas y sociales específicas que afectan también su sexualidad y que deben ser abordadas en la práctica. Objetivo: Analizar la actividad sexual en el adulto mayor del Policlínico Universitario Este, entre enero de 2021 y julio de 2023. Métodos: Se realizó un estudio observacional, analítico, transversal, en el Policlínico Universitario Este en la provincia Camagüey. El universo estuvo constituido por 9 936 pacientes según los criterios de inclusión y de exclusión. Se trabajó 154 pacientes seleccionados mediante el muestreo aleatorio simple. Los expedientes clínicos ambulatorios fueron la fuente secundaria de información. Se utilizó estadística descriptiva e inferencial. Los datos se presentaron en tablas y gráficos. Resultados: Los mayores de 74 años representaron el 13,6 %, de ellos; el 8,4 % mostraron actividad sexual inactiva. El 48,7 % eran del sexo masculino. Los que no tuvieron atracción sexual fueron el 9,7 %. De los pacientes estudiados con actividad sexual activa 33, para un 21,4 %, presentan actividad sexual quincenal, mientras que 24 (15,6 %) semanal. Conclusiones: Los trastornos neurológicos como enfermedades asociadas, así como los fármacos inhibidores de la excitación sexual acompañado del antecedente de disfunción sexual como factores de riesgo imposibilitaron el desarrollo normal de la actividad sexual en los longevos estudiados. El bajo apetito sexual y falta de atracción sexual, así como el estado de viudez se asociaron significativamente a la inactividad sexual.

Introduction: The social context in which the majority of older adults live leads them to risk situations, conditions or health problems with specific physical, psychological and social consequences that also affect their sexuality and that must be addressed in practice. Objective: To analyze sexual activity in older adults at the East University Polyclinic between January 2021 and July 2023. Methods: An observational, analytical, cross-sectional study was carried out in the East University Polyclinic. The universe consisted of 9936 patients according to the inclusion and exclusion criteria. It was worked with 103 patients selected through simple random sampling. Outpatient clinical records were the secondary source of information. Descriptive and inferential statistics were used. The data was presented in tables and graphs. Results: Those over 74 years of age represented 13.6 % of them; 8.4 % showed inactive sexual activity. 48.7 % were male. Those who did not have sexual attraction were 9.7 %. Of the patients studied with active sexual activity, 33, or 21.4 %, had sexual activity every two weeks, while 24 (15.6 %) had sexual activity weekly. Conclusions: Neurological disorders as associated diseases, as well as drugs that inhibit sexual arousal, accompanied by a history of sexual dysfunction as risk factors, prevented the normal development of sexual activity in the elderly studied. Low sexual appetite and lack of sexual attraction, as well as widowhood status, were significantly associated with sexual inactivity.

Intimate partner violence during pregnancy and time to return to sexual activity after childbirth: analysis of the BRISA prenatal cohort / Violencia por pareja íntima durante el embarazo y el tiempo para volver a la actividad sexual después del parto: análisis de la cohorte de prenatal BRISA / Violência por parceiro íntimo na gestação e tempo de retorno das atividades sexuais após o parto: análise da coorte de pré-natal BRISA

Abstract: This study aimed to analyze whether there is an association between intimate partner violence during pregnancy and time to return to sexual activity after childbirth in the BRISA cohort in São Luís, Maranhão State, Brazil, between 2010 and 2013. This is a longitudinal study conducted with 665 women. Intimate partner violence during pregnancy was measured using an instrument created and validated by the World Health Organization to measure violence against women. Time to return to sexual activity after childbirth was investigated using a structured questionnaire. Logistic regression models were used to analyze whether there is an association between intimate partner violence during pregnancy and time to return to sexual activity after childbirth. The prevalence of violence by an intimate partner during pregnancy was 24.06%. The prevalence of women who returned to sexual activity within 3 months after childbirth was 67.96%. When analyzing the association between exposure and outcome, no association was found in the crude model (OR = 0.88; 95%CI: 0.60-1.30), nor in the adjusted model (OR = 1.00; 95%CI: 0.61-1.63). The study results highlight the importance of providing comprehensive care to women, considering both physical and psychological aspects, since violence has a significant impact on several aspects of women's lives.

Resumen: El objetivo de este estudio fue analizar si existe asociación entre la violencia por pareja íntima durante el embarazo y el tiempo para volver a la actividad sexual después del parto en la cohorte BRISA, en São Luis, Maranhão, Brasil, entre 2010 y 2013. Se trata de un estudio longitudinal realizado con 665 mujeres. Se midió la violencia por pareja íntima durante el embarazo a través de un instrumento para medir la violencia contra la mujer creado y validado por la Organización Mundial de la Salud. Se investigó el tiempo para volver a la actividad sexual después del parto a través de un cuestionario estructurado. Se utilizaron modelos de regresión logística para verificar si existe asociación entre la violencia por pareja íntima durante el embarazo y el tiempo para volver a la actividad sexual después del parto. La prevalencia de violencia perpetrada por pareja íntima durante el embarazo fue del 24,06%. La prevalencia de mujeres que volvieron a la actividad sexual dentro de los tres meses posteriores al parto fue del 67,96%. Al analizar la asociación entre la exposición y el resultado, se constató que no hubo asociación en el modelo crudo (OR = 0,88; IC95%: 0,60-1,30), ni en el modelo ajustado (OR = 1,00; IC95%: 0,61-1,63). Los resultados del estudio resaltan la importancia de proporcionar asistencia integral a la salud de la mujer, teniendo en cuenta tanto aspectos físicos como psicológicos, una vez que la violencia afecta significativamente varios aspectos de la vida femenina.

Resumo: O objetivo deste estudo foi analisar se existe associação entre violência por parceiro íntimo na gestação e o tempo de retorno das atividades sexuais após o parto na coorte BRISA, em São Luís, Maranhão, Brasil, entre os anos de 2010 e 2013. Trata-se de estudo longitudinal conduzido com 665 mulheres. A violência por parceiro íntimo na gestação foi medida por meio de instrumento criado e validado pela Organização Mundial da Saúde para medir violência contra a mulher. O tempo de retorno das atividades sexuais após o parto foi investigado por meio de questionário estruturado. Modelos de regressão logística foram utilizados para verificar se existe associação entre violência por parceiro íntimo na gestação e tempo de retorno das atividades sexuais após o parto. A prevalência de violência perpetrada pelo parceiro íntimo na gestação foi de 24,06%. A prevalência de mulheres que retornaram às atividades sexuais em até três meses após o parto foi de 67,96%. Ao analisar a associação entre exposição e desfecho, observou-se que não houve associação no modelo bruto (OR = 0,88; IC95%: 0,60-1,30), nem no modelo ajustado (OR = 1,00; IC95%: 0,61-1,63). Os resultados do estudo evidenciam a importância de prestar assistência integral à saúde da mulher, considerando tanto aspectos físicos quanto psicológicos, uma vez que a violência tem impacto significativo em diversas áreas da vida feminina.