Female Cohort Research Articles

Alveolar Soft Part Sarcoma in the Female Genital Tract: Case Series with Literature Review and SEER Database Analysis.

Alveolar soft part sarcoma (ASPS) is a rare and distinct subtype of soft tissue sarcoma. This study aims to describe the unique presentation of ASPS in the female genital tract. Prognostic factors for cancer-specific overall survival (CSS) were evaluated using multivariate analyses. In our case series, we identified a novel TFE3-PRCC gene fusion in a 24-year-old unmarried patient with cervical ASPS who underwent fertility-sparing surgery and remained recurrence-free for 41 months. The other two patients underwent radical hysterectomy and bilateral salpingo-oophorectomy. At the time of writing, the two patients had been disease-free for 49 and 71 months, fluorescence in situ hybridization showed break-apart signals for the ASPL-TFE3 gene. Among the 55 cases with available information from the PubMed/Medline database, most presented with localized disease, and at the last follow-up, all patients were alive and 45 patients showed no evidence of disease. The 5-year CSS rate in the female genital tract cohort from SEER database was 86.2%. Multivariate analysis revealed that older age was associated with a 1.042-fold increased risk of cancer-specific mortality (HR=1.042, 95% CI 1.022-1.063, P < 0.001), involvement of soft tissue including the heart was associated with a 4.786-fold higher risk (HR=4.7868, 95% CI 1.681-13.623, P= 0.003), and regional infiltration and distant metastasis were associated with approximately 8.6-fold and 18-fold higher risk of cancer-specific mortality compared to local disease, respectively (HR=8.652, 95% CI 2.529-29.63, P = 0.001; HR=18.366, 95% CI 6.153-54.817, P< 0.001). Patients who underwent radical excision did not show reduced cancer-specific mortality compared to those who underwent local excision (HR=0.492, 95% CI 0.224-1.081, P = 0.078). Previously unrecognized genetic diversity exists in ASPS. Patients with ASPS in the female genital tract have the lowest likelihood of presenting with a distant disease and are associated with a more favorable survival outcome.

Epidemiological and clinical characteristics of nontuberculous mycobacterial infections: A retrospective female cohort study in an Italian population

ObjectivesThis study aims to assess the characteristics and treatment outcomes of patients diagnosed with non-tuberculous mycobacteria (NTM) diseases at the Infectious Diseases Unit of ARNAS Garibaldi Hospital in Catania, Italy, focusing on demographics, clinical features, and treatment effectiveness. MethodsWe conducted a retrospective observational study of 10 patients diagnosed with NTM diseases between 2019 and 2021. Data was collected from electronic medical records, including demographic information, comorbidities, treatment modalities, and outcomes. The study utilized descriptive statistics to analyze continuous and categorical variables. Treatment regimens were based on individual patient needs, incorporating a combination of antibiotics. ResultsThe median age of the patients was 55.44 years, all female, predominantly suffering from pulmonary NTM diseases. Mycobacterium intracellulare was the most common pathogen. Common comorbidities included COPD, bronchiectasis, GERD, and hypovitaminosis D. Patients showed symptoms like fever, cough, and asthenia. The treatment regimens were diverse, with macrolides, rifampicin, and ethambutol forming the core. Adverse effects were noted in 40 % of patients, including gastrointestinal and neurological disorders. All patients achieved microbiological cure, with 60 % showing clinical improvement and 36 % radiological improvement. ConclusionThe study highlights the complexity of diagnosing and treating NTM diseases, emphasizing the need for personalized treatment plans and vigilant monitoring of adverse effects. Despite achieving microbiological cure, challenges remain in achieving complete clinical and radiological resolution. Further research is needed to enhance the understanding and management of NTM diseases, particularly in diverse populations.

The Moderating Effect of Gender on the Relationship between Self-Esteem and Resilience among Chinese Undergraduate Students

The objective of this study was to research the link between self-esteem and resilience in Chinese college students, while also considering the potential moderating influence of gender. A total of 210 questionnaires were collected using an online survey, all of which were deemed legitimate. The data obtained from the questionnaire results was analyzed in this study using IBM SPSS Statistics. Descriptive statistics, linear regression, and moderated effects analysis were employed to examine the relationships and interactions among the various elements under investigation. The findings of the study suggest that there exists a noteworthy and favorable association between self-esteem and adaptability, with gender playing a substantial role as a moderator. The correlation among self-esteem and resilience showed a greater degree of significance within the female cohort as opposed to the male cohort. The results of this study highlight the considerable impact of self-esteem on resilience and provide valuable perspectives on gender roles. This study presents various solutions aimed at augmenting resilience levels among university students in China. By considering the impact of social and cultural circumstances on individuals' self-perceptions, it becomes possible to formulate more comprehensive interventions tailored to certain age and gender cohorts.

Results of HDV RNA detection in male seminal fluid and female cervical swab samples using RT-PCR

Mongolia has an extremely high prevalence of hepatitis D virus (HDV), which leads to increased morbidity and mortality from hepatocellular carcinoma (HCC). HDV is the most severe form of chronic viral hepatitis (CVH). A recent study estimated that the prevalence of anti-HDV was 67.5% among hepatitis B surface antigen-positive cases in Mongolia. HDV infection is particularly prevalent in sexually active young people. The virus may be transmitted through sexual intercourse, and it is crucial to confirm this by detecting HDV RNA in semen and cervical swabs of patients with chronic hepatitis delta. This pilot study was conducted with 16 participants, including eight males and eight females. Viral RNA was isolated from the blood, male seminal fluid, and female cervical swab samples of all participants in the study. HDV RNA was quantified using RT-PCR in samples from blood, seminal fluid, and cervical swabs. This study found that the detection rate of HDV RNA differed between male and female samples, with 62.5% of seminal fluid samples in the male cohort being positive compared with 87.5% in the female cohort. The data shows a statistically significant difference between genders for the presence of HDVRNA in seminal fluid and cervical swabs (OR 0.238, 95% CI= 0.02-3.01). A significant correlation was found between blood HDV RNA quantity and HDV RNA presence status in seminal fluid and cervical swab samples, indicating a potential risk of sexual HDV transmission. The R2 values for semen and cervical swab samples were 0.1095 and 0.9755, respectively.

NAVIGATING BILINGUALISM EXPLORATION OF ENGLISH LANGUAGE LEARNING THROUGH SURVEY DATA ANALYSIS

This paper offers a comprehensive exploration of English language learning, blending theoretical frameworks with survey data analysis. Spanning diverse age groups and backgrounds, the study unravels the intricate dynamics of bilingualism, emphasizing the interplay between language, culture, and identity. Demographic insights reveal a predominantly female and bilingual cohort, while language dominance perceptions, motivations for bilingualism, and the impact on life underscore the complexity of language acquisition. Challenges in language skills, cultural context, and motivation provide nuanced perspectives. The study contributes a valuable resource for educators and policymakers, fostering a deeper understanding of bilingualism's diverse dimensions in West Kazakhstan.

Differential Time-To-Promotion Trajectories Among Female and Male Neurosurgeons Contribute to Gender Disparities in Academic Rank Achievement

Despite the increasing representation of females in neurosurgical training, the fraction of female to male neurosurgeons decreases dramatically as faculty rank (Assistant, Associate, or Full Professor) increases. To assess this discrepancy, we quantified self-reported time-to-promotion trajectories for female and male neurosurgeons holding academic appointments. In this cross-sectional institutional review board (IRB)-approved study, 147 female and 84 male neurosurgeons currently holding faculty positions in the US were contacted via email and invited to complete an anonymous, standardized survey. Respondents provided the calendar year of postgraduate training completion, promotion to different faculty ranks, geographic region of current practice (Western, Midwest, Southern, Northeast), and practice subspecialty. The response rate was 44.2% for females and 59.5% for males, with 114 participants included (65 female, 49 male). On average, female neurosurgeons required 25% longer to become an Associate Professor (P= 0.017), 34% longer to become a Full Professor (P= 0.004), 37% longer for promotion from Assistant to Associate Professor (P < 0.001), and 32% longer from Assistant to Full Professor (P= 0.012). Promotion timelines did not vary by region or specialty among male and female cohorts. Linear regressions revealed that female neurosurgeons with more recent training completion experienced shorter time-to-promotion to Associate and Full Professor compared to females of earlier generations (P= 0.005 and 0.001, respectively), while male timelines remained stable. This study identifies a significant delay in time-to-promotion for female neurosurgeons compared to their male counterparts. Investigation and standardization of promotion timelines are necessary to ensure meaningful representation gains from the increased number of women entering neurosurgical training.

BIOLOGICAL AGING AND APOE STATUS REWIRE INTER-OMIC ASSOCIATIONS RELATED TO BIOENERGETICS IN HUMANS

Abstract Apolipoprotein E (APOE) modifies human aging, with the ε2 and ε4 alleles being among the strongest genetic predictors of longevity and Alzheimer’s disease, respectively. However, the mechanisms of APOE’s impact on aging and cognition remain largely uncharacterized. In this study, we analyzed inter-omic context-dependent association patterns across APOE genotype, sex, and health in an undiagnosed cohort of 1950 individuals. We hypothesized that APOE genotypes would show variation in energy metabolites tied to previously-validated metrics of ’biological aging’, a modifiable health metric based on blood biomarkers. Our analysis identified top APOE-associated metabolites as diacylglycerols, including oleoyl- and linoleoyl-arachidonoyl-glycerols, similarly increased in APOE ε2- and ε4- carriers compared to ε3-homozygotes. Male ε2-carriers and biologically-older males displayed a similar increase in associations between insulin resistance and bioenergetic metabolites including pyruvate, glucose, gluconate, and lactate, a trend which was validated in an independent cohort of TwinsUK females. These results provide an atlas of APOE allele-rewired associations and support the involvement of bioenergetic pathways in mediating APOE impact on longevity and AD risk, suggesting targets for enhancing healthspan via lifestyle-modifications or drug-repurposing.

Outcomes of liver diseases in pregnant females: A study from a tertiary care medical center in Pakistan.

To determine the etiologies and outcomes of liver disease in pregnancy in a developing country. A total of 336 consecutive pregnant women with liver disease were included in this prospective cohort study conducted at the Department of Gastroenterology, Jinnah Postgraduate Medical Center, Karachi from August 2019 to August 2021. Patients' baseline demographic, clinical, and laboratory data and outcomes were collected on a pre-designed questionnaire. Among all the pregnant females, the most common liver disease was acute hepatitis E virus (HEV) infection (37.2%), followed by preeclampsia (PEC)/eclampsia (EC), hemolysis, elevated liver enzymes & low platelets (HELLP) syndrome, and hyperemesis gravidarum (HG). The most common maternal complications were fulminant hepatic failure (FHF) in 14.9% and placental abruption in 11.0%. Fetal complications included intrauterine death (IUD) in 20.8% and preterm birth in 8.6%. The maternal and neonatal mortality rates were 11.6% and 39.6%, respectively. Among the predictors, low maternal weight, low body mass index (BMI), and low hemoglobin (Hb) were associated with increased maternal mortality. Low fetal weight, height, maternal systolic blood pressure (SBP), and low maternal Hb were independent predictors of fetal mortality. In our cohort of pregnant females in a tertiary care medical center, acute HEV was the most common liver disease, followed by PEC/EC, HELLP, and HG. Maternal and fetal deaths were alarming in this group of patients and demanded careful management.

Family potential as a component of the human potential of Russian regions

The purpose of the study is to present family potential as a structural component of human potential with the core of family potential consisting of marriages, primarily registered. In the period between the All–Russian censuses of 2002, 2010, 2020 there was a decrease in the number of married people in the country: the number of married people decreased in 2020 as compared to 2002 by 7839 thousand people (12.6%). The proportion of married men decreased by 11.8%, among women the decrease was 11.4%. The largest decrease occurred between the censuses of 2010 and 2020: – 9.9% for male cohorts and – 9.5% for female cohorts. Approaches to analysis of human potential usually do not include the indicators that form family potential, or reduce it only to reproductive function. At the same time, formation of families, their number and quality is of fundamental importance when considering human potential, as it reflects the state of social solidarity, which is formed also in families. The article analyzes the indicators of marriage and divorce in the regions of the Russian Federation, presents the factors affecting them, and gives the author’s definition of family potential. It is shown that the social policy in the Russian Federation is mainly related to measures to increase the birth rate, which, apart from the impact on the sphere of family and marriage relations, does not bring positive results. At the same time, the most important task is formation of social values aimed at increasing strong families based on the values of matrimony.

Seasonal Factors Are Associated with Activities of Enzymes Involved in High-Density Lipoprotein Metabolism among Pregnant Females in Ghana

BackgroundSmall-quantity lipid-based nutrient supplements (SQ-LNS) during pregnancy and postnatally were previously shown to improve high-density lipoprotein (HDL) cholesterol efflux capacity (CEC) and length in the children of supplemented mothers at 18 mo of age in the International Lipid-Based Nutrient Supplements (iLiNS) DYAD trial in Ghana. However, the effects of SQ-LNS on maternal HDL functionality during pregnancy are unknown. ObjectiveThe goal of this cross-sectional, secondary outcome analysis was to compare HDL function in mothers supplemented with SQ-LNS vs. iron and folic acid (IFA) during gestation. MethodsHDL CEC and the activities of 3 HDL-associated enzymes were analyzed in archived plasma samples (N = 197) from a subsample of females at 36 weeks of gestation enrolled in the iLiNS-DYAD trial in Ghana. Correlations between HDL function and birth outcomes, inflammatory markers C-reactive protein (CRP) and alpha-1-acid glycoprotein (AGP), and the effects of season were explored to determine the influence of these factors on HDL function in this cohort of pregnant females. ResultsThere were no statistically significant differences in HDL CEC, plasma lecithin-cholesterol acyltransferase (LCAT) activity, cholesteryl ester transfer protein (CETP) activity, or phospholipid transfer protein (PLTP) activity between mothers supplemented with SQ-LNS compared with IFA control, and no statistically significant relationships between maternal HDL function and childbirth outcomes. LCAT activity was negatively correlated with plasma AGP (R = -0.19, P = 0.007) and CRP (R = -0.28, P < 0.001), CETP and LCAT activity were higher during the dry season compared to the wet season, and PLTP activity was higher in the wet season compared to the dry season. ConclusionsMothers in Ghana supplemented with SQ-LNS compared with IFA during gestation did not have measurable differences in HDL functionality, and maternal HDL function was not associated with childbirth outcomes. However, seasonal factors and markers of inflammation were associated with HDL function, indicating that these factors had a stronger influence on HDL functionality than SQ-LNS supplementation during pregnancy. Clinical Trial Registry numberThe study was registered as NCT00970866. https://clinicaltrials.gov/study/NCT00970866

Optimal fracture prediction thresholds for therapy onset, established from FRAX and Garvan algorithms: a longitudinal observation of the population representative female cohort from the RAC-OST-POL Study

SummaryThe study shows that the use of unified cutoff thresholds to identify high fracture risks by two popular calculators—FRAX and Garvan—leads to a significant discrepancy between the prediction of fractures and their actual prevalence over the period of 10 years. On the basis of the ROC analyses, a proposal of differentiated thresholds is presented. They were established at 6% for FRAX major fracture risk, 1.4% for FRAX hip fracture risk, 14.4% for Garvan any fracture risk, and 8.8% for Garvan hip fracture risk.Purpose/introductionThe aim of the study was to verify how much were the tools, designed to predict fracture risks, precise vs. the actual fracture incidence values over a prospective observation.MethodsThe study group consisted of a population-based postmenopausal sample from the RAC-OST-POL Study. At baseline, there were 978 subjects at the mean age of 66.4 ± 7.8 years and, after a 10-year follow-up, 640 women remained at the mean age of 75.0 ± 6.95 years. At baseline, the fracture risk was established by the FRAX and Garvan tools.ResultsDuring the observation period, 190 osteoporotic fractures were identified in 129 subjects. When high-risk fracture cutoff thresholds (of 10% for major/any and 3% for hip fractures) were employed, only 19.59% of major fractures and 50% of hip fractures were identified in the high-risk group. For the Garvan tool, the percentage of correctly predicted fractures for any and hip fractures was 86.05% and 71.43%, respectively. Nevertheless, the fracture prediction by the Garvan tool was associated with the qualification of numerous subjects to the high-risk group, who subsequently did not experience a fracture in the 10-year follow-up period (false-positive prediction). Based on the ROC analyses, new high-risk thresholds were proposed individually for each calculator, improving the sensitivity, specificity, and diagnostic accuracy of these tools. They were established at 6% for FRAX major fracture risk, 1.4% for FRAX hip fracture risk, 14.4% for Garvan any fracture risk, and 8.8% for Garvan hip fracture risk.ConclusionsThe current prospective study enabled to establish new, optimal thresholds for therapy initiation. Such a modified approach may enable a more accurate identification of treatment requiring patients and, in consequence, reduce the number of new fractures.

EPID-20. SEX-SPECIFIC DIFFERENCES IN MENINGIOMA SUBTYPES AND MUTATIONS – A RETROSPECTIVE ANALYSIS

Abstract A variety of intrinsic and extrinsic factors are known to influence and promote the development of cancer. Although the patients’ gender can influence extrinsic factors, biological sex is an important intrinsic factor. Here, it must also be considered that hormone levels change over the lives of patients. To further investigate these aspects, meningioma can serve as a prototype tumor. Differences are already obvious when analyzing the epidemiology and outcomes: Females are more frequently diagnosed with meningioma, but high-grade meningiomas and fatal outcomes are more frequently observed in males. To further resolve sex and potentially hormone-specific differences, we retrospectively examined a dataset of 798 patients (females n=541, males n=257). Additionally, we arbitrarily set a cut-off of 58 years to stratify for females between pre- and post-menopause. The male cohort was analyzed accordingly to exclude an age-dependent effect. Further, the female cohort was subdivided into “45-55 years” and “other” to analyze the impact of high hormone fluctuations within menopause. When examining the histological data, we found that women displayed the chordoid subtype more frequently than men (6.3% vs. 1.6%). In the age-dependent analyses, there may be a signal for a hormone-dependent effect, as for females this subtype was diagnosed more frequently &amp;lt; 58 than &amp;gt; 58 years of age (10.6% vs. 1.9%; males: 0% vs. 3.0%) and within the menopause (15.5% vs. 3.2%). The same pattern was noted for the TRAF7 mutation, which was detected more frequently in females (20.2% vs. 7.7%), females &amp;lt; 58 years (23.9% vs. 15.6%, males: 6.2% vs. 9.1%) and females within the menopause (27.9% vs. 17.6%) than in the respective other subgroups. This preliminary data warrants further research in larger, comprehensively annotated cohorts and analysis for hormone levels and receptor expression.

Prediction models for hormone receptor status in female breast cancer do not extend to males: further evidence of sex-based disparity in breast cancer

Breast cancer prognosis and management for both men and women are reliant upon estrogen receptor alpha (ERα) and progesterone receptor (PR) expression to inform therapy. Previous studies have shown that there are sex-specific binding characteristics of ERα and PR in breast cancer and, counterintuitively, ERα expression is more common in male than female breast cancer. We hypothesized that these differences could have morphological manifestations that are undetectable to human observers but could be elucidated computationally. To investigate this, we trained attention-based multiple instance learning prediction models for ERα and PR using H&E-stained images of female breast cancer from the Cancer Genome Atlas (TCGA) (n = 1085) and deployed them on external female (n = 192) and male breast cancer images (n = 245). Both targets were predicted in the internal (AUROC for ERα prediction: 0.86 ± 0.02, p < 0.001; AUROC for PR prediction = 0.76 ± 0.03, p < 0.001) and external female cohorts (AUROC for ERα prediction: 0.78 ± 0.03, p < 0.001; AUROC for PR prediction = 0.80 ± 0.04, p < 0.001) but not the male cohort (AUROC for ERα prediction: 0.66 ± 0.14, p = 0.43; AUROC for PR prediction = 0.63 ± 0.04, p = 0.05). This suggests that subtle morphological differences invisible upon visual inspection may exist between the sexes, supporting previous immunohistochemical, genomic, and transcriptomic analyses.

Platelet-associated biomarkers in nonalcoholic steatohepatitis: Insights from a female cohort with obesity.

There is a lack of noninvasive diagnostic methods for nonalcoholic steatohepatitis (NASH), the severe condition of metabolic dysfunction-associated steatotic liver disease (MASLD). Platelet activation, evaluated through certain related parameters, is associated with liver disease and inflammation, but previous results are inconclusive. To investigate the potential utility of platelet-related indices as noninvasive diagnostic markers for the detection and prediction of MASLD, focusing on NASH. We found that mean platelet volume (MPV), plateletcrit (PCT) and platelet distribution width (PDW) were increased in the severe and morbidly obese (SMO) group compared to the normal weight (NW) group. We found decreased levels of MPV in steatosis and NASH patients. MPV and PCT values were decreased in the presence of mild liver inflammation. Platelet count (PLA) and PCT values were lower in the presence of ballooning. We obtained an area under the ROC curve of 0.84 using MPV and three other variables to predict MASLD. Some platelet-related indices vary depending on liver condition. Here, we reported decreased MPV in MASLD presence. Moreover, we presented for the first time a predictive model using MPV, ALT levels and the presence of diabetes mellitus and metabolic syndrome to predict MASLD in obese women. Also, MPV is closely related to early liver inflammation in NASH, and PLA and PCT are related to hepatic ballooning. These indices could be widely used for the early detection of NASH since they are usually determined in routine laboratory tests.

Differential effects of early life adversity on male and female rhesus macaque lifespan.

Early life adversity predicts shorter adult lifespan in several animal taxa. Yet, work on long-lived primate populations suggests the evolution of mechanisms that contribute to resiliency and long lives despite early life insults. Here, we tested associations between individual and cumulative early life adversity and lifespan on rhesus macaques at the Cayo Santiago Biological Field Station using 50 years of demographic data. We performed sex-specific survival analyses at different life stages to contrast short-term effects of adversity (i.e., infant survival) with long-term effects (i.e., adult survival). Female infants showed vulnerability to multiple adversities at birth, but affected females who survived to adulthood experienced a reduced risk later in life. In contrast, male infants showed vulnerability to a lower number of adversities at birth, but those who survived to adulthood were negatively affected by both early life individual and cumulative adversity. Our study shows profound immediate effects of insults on female infant cohorts and suggests that affected female adults are more robust. In contrast, adult males who experienced harsh conditions early in life showed an increased mortality risk at older ages as expected from hypotheses within the life course perspective. Our analysis suggests sex-specific selection pressures on life histories and highlights the need for studies addressing the effects of early life adversity across multiple life stages.

Acute HDM exposure shows time-of-day and sex-based differences in the severity of lung inflammation and circadian clock disruption.

Asthma is a chronic inflammatory disease that shows a time-of-day response to variations in symptoms/severity. However, how the lung circadian clock influences time-of-day response and sex-based differences in house dust mite (HDM)-induced airway inflammation and remodeling has not been thoroughly investigated. We sought to determine whether acute HDM exposure in wild-type mice shows time-of-day response and sex-based differences in allergic airway inflammation and circadian clock disruption in the lungs. Wild-type (C57BL/6J) and Rev-erbα knockout (KO) mice were exposed to either PBS or HDM (for 10 days) intranasally at Zeitgeber time (ZT0: 6 am; ZT12: 6 pm) and euthanized 48 hours after the last exposure. Acute HDM-induced time-of-day response and sex-based differences in lung inflammation, gated cytokines/chemokines, humoral and hormonal responses, and circadian clock gene expression were analyzed. Acute HDM-exposed mice showed a time-of-day response and sex-based differences in exaggerated lung inflammation (inflammatory eosinophils and interstitial macrophages) at ZT12 when compared with ZT0. HDM-exposed female mice showed increased inflammatory response at ZT12, but HDM-exposed male mice showed comparatively lower inflammation with no time-of-day response. HDM-exposed female and male mice showed augmented IgE levels at ZT12 when compared with ZT0. Myeloid innate immunity panel, cytokines/chemokines, and mucin genes showed a time-of-day gating response at ZT0 and ZT12 in the HDM group. In addition, HDM exposure altered the expression of circadian clock genes in the lung, which was evident in female mice at ZT12. Overall, female mice showed significant time-of-day responses to all these parameters compared with male mice. Rev-erbα KO mice exposed to acute HDM showed exaggerated lung inflammation associated with increased IgE and proinflammatory cytokines in bronchoalveolar lavage fluid. Interestingly, HDM exposure causes reduced expression of clock genes in flow-sorted resident eosinophils but not alveolar macrophages. Acute HDM exposure reduced the nocturnal locomotor activity in mice 5 days post-HDM exposure until day10. This study shows a time-of-day response to acute HDM exposure and sex-based differences in the severity of lung inflammation and humoral immune response associated with circadian clock disruption. Our findings support the use of separate female and male mice cohorts for preclinical studies to understand the molecular heterogeneity in asthma pathophysiology.

Partitioning variance in reproductive success, within years and across lifetimes.

Variance in reproductive success (, with k = number of offspring) plays a large role in determining the rate of genetic drift and the scope within which selection acts. Various frameworks have been proposed to parse factors that contribute to , but none has focused on age-specific values of , which indicate the degree to which reproductive skew is overdispersed (compared to the random Poisson expectation) among individuals of the same age and sex. Instead, within-age effects are generally lumped with residual variance and treated as "noise." Here, an ANOVA sums-of-squares framework is used to partition variance in annual and lifetime reproductive success into between-group and within-group components. For annual reproduction, the between-age effect depends on age-specific fecundity (b x), but relatively few empirical data are available on the within-age effect, which depends on ϕ x. By defining groups by age-at-death rather than age, the same ANOVA framework can be used to partition variance in lifetime reproductive success (LRS) into between-group and within-group components. Analytical methods are used to develop null-model expectations for random contributions to within-group and between-group components. For analysis of LRS, random variation in longevity appears as part of the between-group variance, and effects (if any) of skip breeding and persistent individual differences contribute to the within-group variance. Simulations are used to show that the methods for variance partitioning are asymptotically unbiased. Practical application is illustrated with empirical data for annual reproduction in American black bears and lifetime reproduction in Dutch great tits. Results show that overdispersed within-age variance (1) dominates annual in both male and female black bears, (2) is the primary factor that reduces annual effective size to a fraction of the number of adults, and (3) represents most of the opportunity for selection. In contrast, about a quarter of the variance in LRSin great tits can be attributed to random variation in longevity, and most of the rest is due to modest differences in fecundity with age estimated for a single cohort of females. R code is provided that reads generic input files for annual and lifetime reproductive success and allows users to conduct variance partitioning with their own data.

High Incidence of Postoperative Nausea and Vomiting in Transgender Women Undergoing Facial Feminization Procedures.

Postoperative nausea and vomiting (PONV) is a significant concern due to its impact on patient comfort, recovery time, and extended hospital stay. Previous research links higher PONV rates in women during their periovulatory phase to estrogen. This study investigates the PONV risk in transgender women after facial feminization surgery. Retrospective chart reviews of transgender women aged older than 18 undergoing facial feminization from 2014 to 2020 were undertaken. Data included demographics, hormone use history, comorbidities, and PONV history. PONV was classified as any nausea/vomiting episode before discharge. Anesthesia records were examined, and PACU notes were analyzed for PONV indicators. A cis-gender male and female cohort undergoing rhinoplasty served as controls. Of the 282 transgender women receiving facial feminization surgery, 104 experienced PONV, marking a 37% PONV rate. Compared with the 11% PONV rate among cis-gender rhinoplasty patients, this was notably higher. Hormone therapy discontinuation showed no influence on PONV incidence. Transgender women undergoing facial feminization surgery have a 38% PONV rate, surpassing the 11% rate in cis-gender rhinoplasty patients and the general 20%-30% rate for all procedures, including the 25% for oral and maxillofacial surgery. This suggests a heightened PONV risk for transgender women after facial feminization procedures.

Teachers' Perception, Attitude, and Work Environment Readiness towards Digital Technologies in Post-Pandemic HyFlex Teaching

Integrating digital technologies into education has revolutionized the teaching and learning landscape, with HyFlex teaching emerging as an innovative model combining in-person and online instruction to offer students flexibility in learning. It allows students to choose between attending physical classes, participating in online sessions, or accessing recorded materials at their own pace. This study assessed teachers' perceptions, attitudes, and work environment readiness toward digital technologies in HyFlex teaching. The study employed a descriptive correlational research design, surveying 539 teachers actively engaged in HyFlex teaching within the Higher Education Institutions. Findings indicate a predominantly female cohort of teachers, representing 75% of the respondents. Laptops are the most widely used devices, with Google Classroom emerging as the preferred e-learning web-based application, streamlining communication and interactive engagement. There is a significant positive correlation between years of experience and teachers' perceived ease of working with computers and technical equipment in a HyFlex teaching environment; years of experience do not have a significant influence on other aspects of teachers' self-perceived attitudes, such as their competence with the Internet, openness to new technology, or involvement in social networks. The study underscored ongoing professional development's importance in enhancing teachers' digital competence. Mentorship programs facilitate knowledge-sharing and collaboration among teachers. Sustained long-term support is crucial for building teachers' competence in using digital technologies effectively in HyFlex teaching. Implementing these recommendations can create a technology-enabled teaching and learning environment that promotes engagement, collaboration, and effective learning experiences for teachers and students in the HyFlex setting.

Associations of Quantitative and Qualitative Muscle Parameters With Second Hip Fracture Risk in Older Women: A Prospective Cohort Study.

Older women with a first hip fracture exhibit heightened susceptibility and incidence of second fracture and potentially severe consequences. This prospective study was to compare the predictive power of qualitative and quantitative muscle parameters for a second hip fracture in older women with a first hip fracture. A total of 206 subjects were recruited from the longitudinal Chinese Second Hip Fracture Evaluation study. Hip computed tomography (CT) scans were obtained immediately after the first fracture. Muscle fat infiltration was assessed according to the Goutallier classification qualitatively. Quantitative parameters included cross-sectional area and density of gluteus maximus (G.MaxM) and gluteus medius and minimus (G.Med/MinM) muscles. CT X-ray absorptiometry was used to measure the areal bone mineral density (aBMD) of the contralateral femur. Cox proportional hazards models were used to compute hazard ratios (HR) of second hip fracture risk. The mean age of subjects was 74.9 (±9.5) years at baseline. After 4.5 years, 35 had a second hip fracture, 153 without a second hip fracture, and 18 died. Except for the combined G.MinM Goutallier grade 3 and 4 groups before adjustment for covariates (HR = 5.83; 95% confidence interval [CI] 1.49-22.83), there were no significant HRs for qualitative classification to predict a second hip fracture. Among quantitative metrics, after adjustment for covariates, G.Med/MinM density was significant in the original (HR = 1.44; CI 1.02-2.04) and competing risk analyses (HR = 1.46; CI 1.02-2.07). After additional adjustment for femoral neck (FN) aBMD, G.Med/MinM density remained borderline significant for predicting a second hip fracture in competing risk analysis (HR = 1.43; CI 0.99-2.06; p = 0.057). Our study revealed that Goutallier classification was less effective than quantitative muscle metrics for predicting hip second fracture in this elderly female cohort. After adjustment for FN aBMD, G.Med/MinM density is a borderline independent predictor of second hip fracture risk. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.