625 research outputs found
Co-culture of 1-cell outbred mouse embryos on bovine kidney epithelial cells: effect on development, glycolytic activity, inner cell mass: trophectoderm ratios and viability
In an attempt to enhance embryo development, we have co-cultured 1-cell OF1 mouse embryos on bovine kidney epithelial (Madine-Darby bovine kidney; MDBK) cells in a complex medium called complex mouse tubal fluid (cMTF; based on the energy substrate levels found in the mouse oviduct, containing non-essential amino acids, glutamine and EDTA). To determine the quality of the blastocysts obtained, we examined several parameters: morphology, total cell numbers, inner cell mass (ICM): trophectoderm (TE) ratio, glycolytic activity and viability after transfer. A significantly lower number of blastocysts developed on MDBK cells compared with cMTF medium. cMTF blastocysts had a significantly higher glycolytic activity and a lower blastocyst cell number than those grown in co-culture, while both in-vitro groups had higher ICM: TE ratios compared with in vivo. Blastocysts grown on MDBK cells displayed an elevated ICM number compared with those grown in cMTF medium alone. However, the percentage of fetuses after transfer remained drastically low in both culture groups compared with in-vivo blastocysts. In conclusion, co-culture did not increase the number of zygotes reaching the blastocyst stage. Although co-culture blastocysts show some similarities to in-vivo embryos in cell number and glycolytic activity, no enhancement in viability was observe
Pharmacological and non-pharmacological treatment options for depression and depressive symptoms in hemodialysis patients
Depression is a mental disorder with a high prevalence among patients with end stage renal disease (ESRD). It is reported that depression afflicts approximately 20-30% of this patient population, being associated, amongst other, with high mortality rate, low adherence to medication and low perceived quality of life. There is a variety of medications known to be effective for the treatment of depression but due to poor adherence to treatment as well as due to the high need for medications addressing other ESRD comorbidities, depression often remains untreated. According to the literature, depression is under-diagnosed and undertreated in the majority of the patients with chronic kidney disease. In the current review the main pharmacological and non-pharmacological approaches and research outcomes for the management of depressive symptoms in hemodialysis patients are discusse
O-136. Use of mini-Percoll and swim-up sperm preparation techniques in separating spermatozoa with chromatin packaging anomalies
Intra-Renal Hemodynamic Changes After Habitual Physical Activity in Patients with Chronic Kidney Disease
Background: Chronic Kidney Disease (CKD) is considered a silent epidemic with a continuously growing prevalence around the world. Due to uremia many functional and morphological abnormalities occur in almost all systems. Mostly affected, the cardiovascular system, leads to diminished cardiac function that affects patients’ functional capacity and physical activity levels, reducing survival and increasing all-cause mortality. Systematic exercise training ameliorates uremia induced body deficits and significantly improves the survival of CKD patients. Intradialytic exercise training has been recommended as a complementary therapeutic modality equally important to hemodialysis. Methods: The aim of this systematic review is to provide an update on recent advances in our understanding of how exercise training improves functionality of the cardiovascular system through the hemodynamic changes induced by habitual or intradialytic and/or home-based exercise training programs. Results: Systematic exercise training induces beneficial adaptive responses and influences many sensitive physiological biomarkers, such as oxidative stress biomarkers that are implicated in the development of atherosclerosis. Additionally, exercise training decreases the cardiovascular risk by improving the autonomic nervous system activity and the left ventricular function and by reducing nontraditional risk factors such as epicardial adipose tissue. It seems that all these central and peripheral adaptations to exercise training significantly contribute to improvements in functional capacity and exercise tolerance among CKD patients and result in the risk reduction of CKD-associated disorders. Conclusion: Exercise training could serve as a complimentary therapeutic strategy in CKD patients while health care providers should motivate patients to engage in any type of exercise training programs
Developing and testing an instrument to assess aquaticity in humans
We developed and validated an aquaticity assessment test (AAT) for the evaluation of human physical adequacy in the water. Forty-six volunteers (25M/21F; 20 ± 8 years) participated and performed 10 easy-to-administer and practical aquatic tasks. Group A was formed by 36 elite athletes (M/F 20/16, 24.7 ± 10yrs) from two sports categories depending on their affinity to the water environment: terrestrial (wrestling, cycling, dancing) and aquatic (swimming, synchronized swimming, free diving) sports. Group B was formed by 10 non-athlete participants (5M/5F, 14.4 ± 1.4yrs) and was assessed by two independent evaluators. Participants in Group A performed the aquatic tasks once to develop the final AAT items and cutoffs. Participants in Group B performed the aquatic tasks twice on different days to assess repeatability. Factor analysis recommended all 10 aquatic tasks to be included in the final AAT, resulting in scores ranging from 9.5 to 49.5. The AAT scores were statistically different between the terrestrial and the aquatic sports' participants (p 0.05). The AAT appears to be a valid and reliable tool for the evaluation of human physical adequacy in the water. It is an easy and user-friendly test which can be performed in any swimming pool without a need for highly trained staff and specialized equipment, however more research needs to be done in order to be applied in other population group
Socioeconomic impact of restless legs syndrome and inadequate restless legs syndrome management across European settings
Restless legs syndrome (RLS) is one of the most common neurological disorders. It describes an irresistible urge to move the legs, mostly manifested in the evening and at night, which can lead to severe sleep disturbance. As part of the European Brain Council (EBC)-led Value-of-Treatment project, this study aimed at capturing the socioeconomic impact of RLS related to the inadequate diagnosis and treatment across different European healthcare settings. The economic burden of RLS was estimated using the published EBC framework of analysis in three separate European Union healthcare systems (France, Germany, and Italy). The RLS care pathway was mapped to identify the unmet needs of patients. Based on specific patient stories, the economic impact of correctly diagnosing RLS and changing between inadequate and target treatment was calculated using appropriate scenario analysis. RLS proved to be a significant personal and social burden, when epidemiological data, high prevalence of RLS, and its need for treatment are combined. By looking at the savings emerging from the provision of optimal care management (timely and correct diagnosis, evidence-based therapy, avoidance of therapy-related complications such as augmentation), the authors foresee substantial economic savings with the achievement of adequate diagnosis and treatment of RLS. Education about RLS is urgently needed for all subspecialties involved in RLS patient care as well as the general public. Equally important, the search for new causal treatment strategies should be intensified to reduce suffering and substantial societal cost
Effects of redox disturbances on motility, contractility and muscle tissue pathogenesis
CITATION: Karatzaferi, C. et al. 2019. Effects of redox disturbances on motility, contractility and muscle tissue pathogenesis. Oxidative Medicine and Cellular Longevity, 3272035, doi:10.1155/2019/3272035.The original publication is available at https://www.hindawi.comWhether in health or disease, reactive oxygen and nitrogen
species (ROS/RNS) affect smooth and striated muscle status
and function in ways not always discernible or appreciated.
Despite the technological and methodological advancements,
some key challenges still exist. On the one hand, one challenge
is to appreciate acute effects on contractility and/or bioenergetics
within a realistic functional context, effectively
linking in vitro observations to in vivo conditions. On the
other hand, chronic effects on indices of clinical significance
are more difficult to clarify given the interplay of redox status
variations with systemic inflammation and autophagy but
also with lifestyle factors such as nutrition and physical
activity—which impact on systemic health indices, as well
as directly on smooth and striated muscles.https://www.hindawi.com/journals/omcl/2019/3272035/Publisher's versio
Restless legs syndrome/Willis–Ekbom disease prevalence in beta thalassemia patients
Purpose
Both beta thalassemia and restless legs syndrome (RLS) patients share some common pathophysiological characteristics related to iron handling. In the present study, the aim was to explore the prevalence of RLS as well as to explore potential association between the syndrome and various quality of life-related parameters in a sample of beta thalassemia patients.
Methods
One hundred fourteen (age 40 ± 11 yr, 59 M/55F) beta thalassemia patients participated in this cross-sectional descriptive study. Patients were screened for RLS based on the international RLS study group diagnostic criteria as well as a battery of validated questionnaires.
Results
The prevalence of RLS in this sample of beta thalassemia patients was zero. The quality of life score was low (78 ± 18). Iron levels were within normal range (191 ± 66 mcg/dL) while ferritin levels were high as expected (1836 ± 225 ng/dL).
Conclusions
Our sample of patients comes from central Greece where the prevalence of RLS in the general population is 4% while in renal failure patients is 27%. To our surprise, there was no presence of RLS among this sample of beta thalassemia patients. The adequate levels of iron and ferritin often seen in these patients could be the reason of the absence of RLS symptoms
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