IntroductionTo evaluate whether the hypothesis that estrogen levels are associated with temporomandibular disorders (TMD) in humans can be confirmed or contradicted by available literature.Material and methodsA systematic review based on the content of PubMed, Scopus, and Cochrane Library databases was performed. Studies were identified using a combination of key words ‘temporomandibular disorder’ and ‘estrogen’. Nine studies were included into our review.ResultsThe relationship between estrogen levels and TMD was found in seven out of nine reviewed papers. Results from two papers suggest that a high estrogen level is associated with an increased prevalence of TMD. Five additional papers found a relationship between a low estrogen level and an increase in TMD pain. In considering the value of evidence and inconsistencies of results in the reviewed publications, we state that there is weak evidence to support the hypothesis that estrogen levels are associated with TMD.ConclusionsResults of reviewed studies were divergent and sometimes contradictory. One possible explanation is that estrogen influences TMD pain processing differently than temporomandibular joints (TMJ) structures, as shown in many animal studies. Estrogen may influence TMD pain processing differently than TMJ structures. We suggest consideration of the dual action of estrogen when planning future studies on its association with TMD.
Sperm DNA fragmentation varies between individuals and is more pronounced with increased patient age and time after sperm donation. The intensification of DNA fragmentation depends on the balance of the oxidoreductive system, which is regulated mainly by two enzymes - superoxide dismutase (SOD) and catalase. The objective of this study was to determine the relationship between sperm DNA fragmentation dynamics, fertility and seminal SOD and catalase activity. The study was conducted in 2013 and 2014 at the Non-Public Health Care Unit 'Ovum Reproduction and Andrology' in Lublin, Lublin, Poland, and covered 218 men aged 25-35 (85 fertile and 133 patients treated for infertility). Percentage of fragmented DNA was measured in a modified chromatin dispersion test at four time points after sperm donation (t = 0, 3, 6, 12 h). SOD and catalase activities were determined spectrophotometrically. We confirmed that the activity of SOD in the seminal plasma of men with reproductive disorders was lower compared with fertile men. Conversely, no significant correlations were found between fertility and catalase activity. Sperm DNA of infertile males was initially more fragmented than fertile male sperm DNA. SOD and catalase activity did not correlate with the degree of DNA fragmentation in fertile men. In men with reproductive disorders, the rate of DNA fragmentation was slow within first 3 h after sperm donation and then increased between 6 and 12 h. In this group of infertile men, those with higher SOD activity had a lower DNA fragmentation index (DFI) after 12 h, and a reduced rate of intensity of fragmentation from 6 to 12 h. Alternatively, higher catalase activity among men treated for infertility was accompanied by higher initial DFI and higher rate of DNA fragmentation from 6 to 12 h. These results highlight the importance of determining a proper time window between sperm donation and procedures of assisted reproductive technology.
Urinary incontinence (UI) is one of the most common diseases in women. It involves uncontrolled leaking of urine through the urethra. UI incidence depends on age and in certain age groups it can affect up to 60% of the female population. The symptoms can be persistent and due to their embarrassing nature they can lead to significant deterioration of quality of life and psychological functioning. The aim of this study was to investigate the relationship between the quality of life and selected aspects of functioning. Seventy female outpatients of a public clinic in Nałęczów, Poland, were examined, and the following methods were used: the Urinary Incontinence Life Quality Scale (Szymona-Pałkowska, Kraczkowski), Disease-Related Appraisal Scale (Janowski, Steuden), Coping Inventory for Stressful Situations (Endler, Parker), Disease-Related Social Support Scale (Brachowicz, Janowski, Sadowska), and the Knowledge Appraisal Scale for Urinary Incontinence (Szymona-Pałkowska, Kraczkowski). The obtained results suggest that the strongest predictors for the quality of life with UI would be: perception of the disease as an injustice and a challenge (a reverse relationship) and an avoidance-oriented style of coping with stress through companionship seeking (a positive relationship). The duration of the disease and the level of related knowledge proved to be crucial in the analysis of one dimension, i.e. distance to the symptoms.
Laparoscopic surgery was performed on a patient with suspected intrauterine pregnancy. The patient's previous medical history and her strong wish for immediate surgery were also taken into account. An intrauterine pregnancy was found in the course of the operation. Following the resection of an inflamed tube, the operation was concluded without complications. Pregnancy‐maintaining drugs were administered. It was ascertained that the development of the embryo was physiologically correct and undisturbed, and that there were no uterine contractions. The patient remained under observation until the 22nd week of pregnancy. The case presented leads to the conclusion that cautious laparoscopic surgery on the reproductive organ in early pregnancy does not necessarily interfere with the further course of the pregnancy. In the literature through to 1996 accessible via MEDLINE, no more than 19 cases of operations on the reproductive organ during pregnancy are described. No inflammatory changes of the tubes are described in those reports, and no previous authors describe pregnancy loss as the result of laparoscopy.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.