Background: Periodontal diseases and poor oral hygiene are potentially associated with decreased female fecundability. Fecundability refers to the probability of conception during a given period measured in months or menstrual cycles. This study aims to examine whether halitosis is associated with female fecundability in a large sample of Chinese women who planned to be pregnant.
Methods: In 2012, a total of 6319 couples came for preconception care in eight districts in Shanghai, China and were followed by telephone contact. Three thousand nine hundred fifteen women who continued trying to be pregnant for up to 24 months remained for final statistical analyses. Halitosis was self-reported at the preconception care visit. Time to pregnancy (TTP) was reported in months and was censored at 24 months. Fecundability ratio (FR) was defined as the ratio of probability of conception among those with and without halitosis. FR and 95% confidence interval (CI) were estimated using the discrete-time Cox model.
Results: 80.1 and 86.1% of women had self-reported clinically confirmed pregnancy within 12 and 24 months, respectively. Halitosis was reported in 8.7% of the women. After controlling for potential confounders, halitosis was associated with a reduced probability of spontaneous conception (for an observation period of 12 months: adjusted FR 0.82, 95% CI 0.72-0.94; for an observation period of 24 months: adjusted FR 0.84, 95% CI 0.74-0.96).
Conclusions: Halitosis is associated with reduced fecundability in Chinese women.
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http://dx.doi.org/10.1186/s12884-021-04315-1 | DOI Listing |
R Soc Open Sci
January 2025
Department of Anthropology, Stony Brook University, Stony Brook, NY, USA.
Across mammals, fertility and offspring survival are often lowest at the beginning and end of females' reproductive careers. However, extrinsic drivers of reproductive success-including infanticide by males-could stochastically obscure these expected age-related trends. Here, we modelled reproductive ageing trajectories in two cercopithecine primates that experience high rates of male infanticide: the chacma baboon () and the gelada ().
View Article and Find Full Text PDFNarra J
December 2024
Department of Clinical Pathology, Faculty of Medicine, Universitas Imelda, Medan, Indonesia.
Drug-resistant epilepsy in pediatric patients is associated with neuroinflammation and neurodegeneration. Vitamin D 25-OH exerts neuroprotective effects, while glial cell line- derived neurotrophic factor (GDNF) and the proinflammatory cytokine interleukin-1β (IL-1β) are implicated in the mechanisms of neuroinflammation and epileptogenesis. The aim of this study was to investigate the relationship between vitamin D 25-OH, IL-1β, and GDNF levels with seizure severity and frequency in children with drug-resistant epilepsy.
View Article and Find Full Text PDFNarra J
December 2024
Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.
Endometriosis remains a significant challenge for reproductive-aged women and is frequently associated with infertility. Although in vitro fertilization (IVF) is used to address infertility in women with endometriosis, its effectiveness in this context is still debated, particularly in developing countries such as Indonesia, where IVF remains a major challenge. The aim of this study was to investigate the success rates of early stages of IVF in women with and without endometriosis.
View Article and Find Full Text PDFObstet Gynecol Surv
January 2025
Professor, Department of Biochemistry and Molecular Biology-A, University of Murcia, Murcia, Spain.
Importance: Infertility affects around 180 million people in the world and can be influenced by a number of nutritional factors.
Objective: The idea of a pretreatment optimization including beneficial weight loss, adequate physical activity, and good lifestyle habits could enhance fertility for many couples who want to conceive a baby.
Results: There are different aspects related to nutrition, such as obesity (affecting 23%-30% of reproductive-aged women), dietary patterns (type of diet, good or bad habits, and physical activity), nutrients (vitamins or minerals), hormones (adipokines, among others), and endocrine-disrupting chemicals (phytoestrogens and bisphenol A, among others) that have a clear impact on women's fertility.
Reprod Biol Endocrinol
January 2025
Department of Clinical Psychology and Psychotherapy, University of Zurich, Binzmühlestrasse 14, Zurich, 8050, Switzerland.
Background: Despite the growing use of social egg freezing (SEF), research focusing on its psychological aspects is lacking. This study aimed to investigate possible psychological predictors, reasons, and outcomes of SEF in German-speaking countries.
Methods: The cross-sectional study included 1,131 women (average age 31 years) who had never used medical egg freezing.
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