-
European Journal of Medical Research Jun 2024Nowadays, there has been limited Mendelian randomization (MR) research focusing on the causal relationship between estradiol and vaginitis. Therefore, this study...
OBJECTIVE
Nowadays, there has been limited Mendelian randomization (MR) research focusing on the causal relationship between estradiol and vaginitis. Therefore, this study conducted a two-way MR study to clarify the causal effect and related influencing factors between them.
METHODS
All genetic datasets were obtained using publicly available summary statistics based on individuals of European ancestry from the IEU GWAS database. MR analysis was performed using MR-Egger, weighted median (WM) and inverse variance weighted (IVW) methods to assess the causal relationship between exposure and outcome and to validate the findings by comprehensively evaluating the effects of pleiotropic effects and outliers.
RESULTS
MR analysis revealed no significant causal relationship between estradiol and vaginitis risk. There was a negative correlation between estradiol and age at menarche (IVW, OR: 0.9996, 95% CI: 0.9992-1.0000, P = 0.0295; WM, OR: 0.9995, 95% CI: 0.9993-0.9998, P = 0.0003), and there was a positive correlation between age at menarche and vaginitis (IVW, OR: 1.5108, 95% CI: 1.1474-2.0930, P = 0.0043; MR-Egger, OR: 2.5575, 95% CI: 1.7664-9.6580, P = 0.0013). Estradiol was negatively correlated with age at menopause (IVW, OR: 0.9872, 95% CI: 0.9786-0.9959, P = 0.0041). However, there was no causal relationship between age at menopause and vaginitis (P > 0.05). In addition, HPV E7 Type 16, HPV E7 Type 18, and Lactobacillus had no direct causal effects on estradiol and vaginitis (P > 0.05). Sensitivity analyses revealed no heterogeneity and horizontal pleiotropy.
CONCLUSION
When estrogen levels drop, it will lead to a later age of menarche, and a later age of menarche may increase the risk of vaginitis, highlighting that the longer the female reproductive tract receives estrogen stimulation, the stronger the defense ability is formed, and the prevalence of vaginitis is reduced. In conclusion, this study indirectly supports an association between reduced level of estrogen or short time of estrogen stimulation and increased risk of vaginitis.
Topics: Humans; Female; Mendelian Randomization Analysis; Estradiol; Vaginitis; Menarche; Inflammation
PubMed: 38890725
DOI: 10.1186/s40001-024-01914-4 -
Cureus Jun 2024This narrative review comprehensively examines the intricate relationship between period poverty and the Sustainable Development Goals (SDGs), positioning it as a... (Review)
Review
This narrative review comprehensively examines the intricate relationship between period poverty and the Sustainable Development Goals (SDGs), positioning it as a critical public health challenge with far-reaching implications. Through an in-depth analysis of the multifaceted impact of period poverty on public health, including its effects on reproductive health, mental well-being, and economic participation, the paper underscores the urgent need to address this issue within the framework of the SDGs. An overview of existing literature on period poverty, its impact on health and well-being, and its relation to the SDGs was carried out. Different perspectives, interventions, and policy approaches to addressing period poverty were also explored. By illuminating the interplay between period poverty and various SDGs, particularly those related to gender equality, health, education, and economic empowerment, the study emphasizes the imperative of integrating menstrual health and hygiene into global development efforts. Advocating for targeted policies, funding, and advocacy, the manuscript calls for a holistic and inclusive approach to breaking the cycle of period poverty, ultimately contributing to advancing the SDGs and fostering a more equitable and healthier global society. Efforts to eradicate period poverty - providing affordable menstrual products, improving sanitation infrastructure, enhancing education, and implementing supportive policies - lead to significant progress in public health and gender equity. By prioritizing menstrual health management in public health policies, educational programs, and economic strategies, we can ensure that everyone who menstruates can do so with dignity and without limits on their potential.
PubMed: 38887745
DOI: 10.7759/cureus.62499 -
Reproductive Health Jun 2024Adolescents in Ghana are vulnerable to unequal power relations at the personal, community and structural levels which in turn limits their opportunities in access to...
BACKGROUND
Adolescents in Ghana are vulnerable to unequal power relations at the personal, community and structural levels which in turn limits their opportunities in access to critical sexual and reproductive health information and services. There is therefore high unmet need for sexual and reproductive health (SRH) information and services and the Bono East region typifies this situation, recording some of the poorest SRHR outcomes among adolescents. We, therefore, aimed to investigate the SRH needs (unmet), behaviors and utilization of SRH services among adolescents in the Bono East region.
METHODS
Using a maximum variation sampling approach, this qualitative study conducted in-depth interviews and focused group discussions with adolescent boys and girls, parents, community leaders, and healthcare providers.
RESULTS
Our findings are presented under two broad categories: major SRHR concerns of adolescents, and perspectives about that influences adolescents' utilization of SRHR services. Under the major SRHR need of adolescents, the following themes emerged: information and services on pregnancy prevention, menstrual hygiene management, availability of comprehensive abortion care services, and attitudes towards adolescent pregnancy. The perspectives about the factors that influence adolescent children were discussed at multiple levels: individual/personal. interpersonal and community/societal. At the individual level, limited understanding of adolescence/puberty, desire of adolescents to belong and misperceptions about contraceptives. At the interpersonal level, issues relating to technical capacity needs of service providers, disrespect exhibited by service providers, and parental failure were identified as influential factors. Then at the community/societal level, we identified structural constraints and compromised social safety concerns in accessing contraceptives and services.
CONCLUSION
In conclusion, the findings from this study offer valuable insights into the complex landscape of adolescent sexual and reproductive health in the Bono East region. The implications for policy and practice are manifold, ranging from comprehensive education to addressing menstrual hygiene, involving parents, training healthcare providers, and promoting respectful care.
Topics: Humans; Adolescent; Female; Ghana; Male; Reproductive Health Services; Reproductive Health; Sexual Health; Health Services Needs and Demand; Qualitative Research; Pregnancy; Health Services Accessibility; Patient Acceptance of Health Care; Sexual Behavior; Pregnancy in Adolescence; Health Knowledge, Attitudes, Practice; Adolescent Health Services; Adolescent Behavior
PubMed: 38886821
DOI: 10.1186/s12978-024-01822-0 -
Breast Cancer Research : BCR Jun 2024Early menarche is an established risk factor for breast cancer but its molecular contribution to tumor biology and prognosis remains unclear.
BACKGROUND
Early menarche is an established risk factor for breast cancer but its molecular contribution to tumor biology and prognosis remains unclear.
METHODS
We profiled transcriptome-wide gene expression in breast tumors (N = 846) and tumor-adjacent normal tissues (N = 666) from women in the Nurses' Health Studies (NHS) to investigate whether early menarche (age < 12) is associated with tumor molecular and prognostic features in women with breast cancer. Multivariable linear regression and pathway analyses using competitive gene set enrichment analysis were conducted in both tumor and adjacent-normal tissue and externally validated in TCGA (N = 116). Subgroup analyses stratified on ER-status based on the tumor were also performed. PAM50 signatures were used for tumor molecular subtyping and to generate proliferation and risk of recurrence scores. We created a gene expression score using LASSO regression to capture early menarche based on 28 genes from FDR-significant pathways in breast tumor tissue in NHS and tested its association with 10-year disease-free survival in both NHS (N = 836) and METABRIC (N = 952).
RESULTS
Early menarche was significantly associated with 369 individual genes in adjacent-normal tissues implicated in extracellular matrix, cell adhesion, and invasion (FDR ≤ 0.1). Early menarche was associated with upregulation of cancer hallmark pathways (18 significant pathways in tumor, 23 in tumor-adjacent normal, FDR ≤ 0.1) related to proliferation (e.g. Myc, PI3K/AKT/mTOR, cell cycle), oxidative stress (e.g. oxidative phosphorylation, unfolded protein response), and inflammation (e.g. pro-inflammatory cytokines IFN and IFN ). Replication in TCGA confirmed these trends. Early menarche was associated with significantly higher PAM50 proliferation scores (β = 0.082 [0.02-0.14]), odds of aggressive molecular tumor subtypes (basal-like, OR = 1.84 [1.18-2.85] and HER2-enriched, OR = 2.32 [1.46-3.69]), and PAM50 risk of recurrence score (β = 4.81 [1.71-7.92]). Our NHS-derived early menarche gene expression signature was significantly associated with worse 10-year disease-free survival in METABRIC (N = 952, HR = 1.58 [1.10-2.25]).
CONCLUSIONS
Early menarche is associated with more aggressive molecular tumor characteristics and its gene expression signature within tumors is associated with worse 10-year disease-free survival among women with breast cancer. As the age of onset of menarche continues to decline, understanding its relationship to breast tumor characteristics and prognosis may lead to novel secondary prevention strategies.
Topics: Humans; Female; Breast Neoplasms; Menarche; Neoplasm Recurrence, Local; Middle Aged; Prognosis; Transcriptome; Gene Expression Profiling; Adult; Biomarkers, Tumor; Risk Factors; Gene Expression Regulation, Neoplastic; Age Factors
PubMed: 38886818
DOI: 10.1186/s13058-024-01839-0 -
BMC Women's Health Jun 2024The burden of early sexual engagement among youth is enormous. It directly raises the risk of sexually transmitted infections(STIs) and indirectly contributes to...
BACKGROUND
The burden of early sexual engagement among youth is enormous. It directly raises the risk of sexually transmitted infections(STIs) and indirectly contributes to unintended pregnancy, unsafe abortion, premature childbirth, and psychosocial issues. The aim of this paper was to estimate the timing of sexual debut and examine the factors influencing the timing of first sexual intercourse following menarche among female youth aged between 15 and 24 in Uganda.
METHOD
Self-reported data were extracted from the 2016 Uganda Demographic and Health Survey (UDHS), with a sub-sample of 7964 female youth from the individual woman file. Kaplan-Meier survival curves, decrement life-table analysis, and the discrete-time logit model were used to examine the timing of sexual debut and associated factors.
RESULTS
67.4% of the female youth had experienced first sexual initiation. Overall, the meantime to sexual debut was 4.4 years and the median time was 4.3 years, and all the female youth had experienced first sexual initiation by the end of the twelfth year following menarche. Significant factors found to influence the timing of sexual initiation include having higher education level (OR = 0.724: 95% CI = 0.59-0.89; p = 0.003), residing in the Northern region (OR = 0.877:95% CI = 0.79-0.97, p = 0.012), being employed (OR = 1.085: 95% CI = 1.01-1.16; p = 0.021), and being literate (OR = 1.155; 95% CI = 1.07-1.25; p < 0.001).
CONCLUSIONS
These findings are expected to be central in the bid to delay first sexual intercourse. Also they shed light on some of the factors associated with the timing of sexual debut which may be addressed at community level for non-school going youth and in schools, as school based prevention sexual and reproductive health programs. The findings highlight the need for future studies to collect more data to explore further the linkage between time to first debut since menarche and, mass media, religion, type of residence, and wealth index.
Topics: Humans; Female; Adolescent; Uganda; Menarche; Young Adult; Coitus; Sexual Behavior; Time Factors; Age Factors; Adolescent Behavior; Health Surveys
PubMed: 38886673
DOI: 10.1186/s12905-024-03201-0 -
Scientific Reports Jun 2024Myasthenia gravis (MG) is an autoimmune disease characterized by muscle fatigability due to acetylcholine receptor (AChR) autoantibodies. To better characterize juvenile... (Comparative Study)
Comparative Study
Myasthenia gravis (MG) is an autoimmune disease characterized by muscle fatigability due to acetylcholine receptor (AChR) autoantibodies. To better characterize juvenile MG (JMG), we analyzed 85 pre- and 132 post-pubescent JMG (with a cutoff age of 13) compared to 721 adult MG patients under 40 years old using a French database. Clinical data, anti-AChR antibody titers, thymectomy, and thymic histology were analyzed. The proportion of females was higher in each subgroup. No significant difference in the anti-AChR titers was observed. Interestingly, the proportion of AChR MG patients was notably lower among adult MG patients aged between 30 and 40 years, at 69.7%, compared to over 82.4% in the other subgroups. Thymic histological data were examined in patients who underwent thymectomy during the year of MG onset. Notably, in pre-JMG, the percentage of thymectomized patients was significantly lower (32.9% compared to more than 42.5% in other subgroups), and the delay to thymectomy was twice as long. We found a positive correlation between anti-AChR antibodies and germinal center grade across patient categories. Additionally, only females, particularly post-JMG patients, exhibited the highest rates of lymphofollicular hyperplasia (95% of cases) and germinal center grade. These findings reveal distinct patterns in JMG patients, particularly regarding thymic follicular hyperplasia, which appears to be exacerbated in females after puberty.
Topics: Humans; Myasthenia Gravis; Female; Male; Adult; France; Thymus Gland; Thymectomy; Adolescent; Autoantibodies; Receptors, Cholinergic; Young Adult; Child; Cohort Studies; Germinal Center
PubMed: 38886398
DOI: 10.1038/s41598-024-63162-0 -
Animal Genetics Jun 2024Unfavorable genetic correlations between milk production, fertility, and urea traits have been reported. However, knowledge of the genomic regions associated with these...
Unfavorable genetic correlations between milk production, fertility, and urea traits have been reported. However, knowledge of the genomic regions associated with these unfavorable correlations is limited. Here, we used the correlation scan method to identify and investigate the regions driving or antagonizing the genetic correlations between production vs. fertility, urea vs. fertility, and urea vs. production traits. Driving regions produce an estimate of correlation that is in the same direction as the global correlation. Antagonizing regions produce an estimate in the opposite direction of the global estimates. Our dataset comprised 6567, 4700, and 12,658 Holstein cattle with records of production traits (milk yield, fat yield, and protein yield), fertility (calving interval) and urea traits (milk urea nitrogen and blood urea nitrogen predicted using milk-mid-infrared spectroscopy), respectively. Several regions across the genome drive the correlations between production, fertility, and urea traits. Antagonizing regions were confined to certain parts of the genome and the genes within these regions were mostly involved in preventing metabolic dysregulation, liver reprogramming, metabolism remodeling, and lipid homeostasis. The driving regions were enriched for QTL related to puberty, milk, and health-related traits. Antagonizing regions were mostly related to muscle development, metabolic body weight, and milk traits. In conclusion, we have identified genomic regions of potential importance for dairy cattle breeding. Future studies could investigate the antagonizing regions as potential genomic regions to break the unfavorable correlations and improve milk production as well as fertility and urea traits.
PubMed: 38885945
DOI: 10.1111/age.13455 -
Frontiers in Endocrinology 2024Metabolic dysfunction-associated steatotic liver disease (MASLD) presents a growing health concern in pediatric populations due to its association with obesity and...
Bioelectrical impedance parameters add incremental value to waist-to-hip ratio for prediction of metabolic dysfunction associated steatotic liver disease in youth with overweight and obesity.
INTRODUCTION
Metabolic dysfunction-associated steatotic liver disease (MASLD) presents a growing health concern in pediatric populations due to its association with obesity and metabolic syndrome. Bioelectrical impedance analysis (BIA) offers a non-invasive and potentially effective alternative for identifying MASLD risk in youth with overweight or obesity. Therefore, this study aimed to assess the utility of BIA for screening for MASLD in the youth.
METHOD
This retrospective, cross-sectional study included 206 children and adolescents aged <20 years who were overweight and obese. The correlations between anthropometric measurements and BIA parameters and alanine aminotransferase (ALT) levels were assessed using Pearson's correlation analysis. Logistic regression analysis was performed to examine the associations between these parameters and ALT level elevation and MASLD score. Receiver operating characteristic (ROC) curves were generated to assess the predictive ability of the parameters for MASLD.
RESULTS
Pearson's correlation analysis revealed that waist-to-hip ratio (WHR), percentage body fat (PBF), and BIA parameters combined with anthropometric measurements were correlated with ALT level. Logistic regression revealed that WHR, skeletal muscle mass/WHR, PBF-WHR, fat-free mass/WHR, and appendicular skeletal muscle mass/WHR were correlated with ALT level elevation after adjusting for age, sex, and puberty. WHR, PBF-WHR, and visceral fat area (VFA)-WHR were positively correlated with the MASLD score in the total population after adjusting for age, sex, and puberty. PBF-WHR and VFA-WHR were correlated with the MASLD score even in youth with a normal ALT level. The cutoff points and area under the ROC curves were 34.6 and 0.69 for PBF-WHR, respectively, and 86.6 and 0.79 for VFA-WHR, respectively.
DISCUSSION
This study highlights the utility of combining BIA parameters and WHR in identifying the risk of MASLD in overweight and obese youth, even in those with a normal ALT level. BIA-based screening offers a less burdensome and more efficient alternative to conventional MASLD screening methods, facilitating early detection and intervention in youth at risk of MASLD.
Topics: Humans; Male; Female; Electric Impedance; Child; Cross-Sectional Studies; Adolescent; Retrospective Studies; Waist-Hip Ratio; Overweight; Pediatric Obesity; Metabolic Syndrome; Fatty Liver; Body Composition; Body Mass Index; Prognosis
PubMed: 38883602
DOI: 10.3389/fendo.2024.1385002 -
Open Research Europe 2024The prevalence of hormone-related health issues caused by exposure to endocrine disrupting chemicals (EDCs) is a significant, and increasing, societal challenge....
The prevalence of hormone-related health issues caused by exposure to endocrine disrupting chemicals (EDCs) is a significant, and increasing, societal challenge. Declining fertility rates together with rising incidence rates of reproductive disorders and other endocrine-related diseases underscores the urgency in taking more action. Addressing the growing threat of EDCs in our environment demands robust and reliable test methods to assess a broad variety of endpoints relevant for endocrine disruption. EDCs also require effective regulatory frameworks, especially as the current move towards greater reliance on non-animal methods in chemical testing puts to test the current paradigm for EDC identification, which requires that an adverse effect is observed in an intact organism. Although great advances have been made in the field of predictive toxicology, disruption to the endocrine system and subsequent adverse health effects may prove particularly difficult to predict without traditional animal models. The MERLON project seeks to expedite progress by integrating multispecies molecular research, new approach methodologies (NAMs), human clinical epidemiology, and systems biology to furnish mechanistic insights and explore ways forward for NAM-based identification of EDCs. The focus is on sexual development and function, from foetal sex differentiation of the reproductive system through mini-puberty and puberty to sexual maturity. The project aims are geared towards closing existing knowledge gaps in understanding the effects of EDCs on human health to ultimately support effective regulation of EDCs in the European Union and beyond.
PubMed: 38883262
DOI: 10.12688/openreseurope.17319.1 -
Cureus May 2024In a rare condition known as vaginal agenesis, the uterus (womb) may develop only partially or not at all, while the vagina fails to develop altogether. It is common to...
In a rare condition known as vaginal agenesis, the uterus (womb) may develop only partially or not at all, while the vagina fails to develop altogether. It is common to diagnose vaginal agenesis, when a female does not start menstruation at puberty. This is a prenatal disorder that may also be linked to bone or kidney issues. Mullerian agenesis, Mullerian aplasia, and Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome are other names for the illness. Treatment modalities encompass surgical and nonsurgical interventions, including the utilization of prefabricated or customized vaginal stents for neovagina reconstruction and maintenance. This case report describes the development of a neovagina in a 27-year-old female diagnosed with vaginal agenesis, a characteristic of MRKH syndrome. A customized clear acrylic stent, designed to provide a resilient surface, serves as a straightforward and cost-efficient alternative for managing this condition. Significantly, it enhances patient's compliance and comfort during treatment, addressing both the physical and psychological ramifications of this congenital anomaly. This customized vaginal stent not only provides a practical solution but also contributes to enhancing the quality of life for individuals grappling with vaginal agenesis, thereby offering a promising avenue for addressing the multifaceted challenges associated with this condition.
PubMed: 38883068
DOI: 10.7759/cureus.60512