189 research outputs found
Gender Difference in Apnea and Hypopnea Component in Obstructive Sleep Apnea
Introduction
We aimed to analyze the apnea and hypopnea structure separately with demographic parameters and sleep architecture in men and women with sleep apnea.
Materials and Methods
Patients referred for snoring, witnessed apnea and/or day time sleepiness to Dışkapı Yıldırım Beyazıt Research and Educational Hospital Sleep Center and gone under polysomnography (PSG) between December 2010 and June 2012 were taken in order. PSG reports were analyzed retrospectively. The patients with sleep efficiency less than 40% were excluded. The BMI, neck circumference (NC), abdominal circumference (AC) and PSG values were recorded.
Results
Totally 406 patients (250 male, 156 female patients) were studied. NC was found more in males whereas AC and BMI were found significantly more in females. Mean age, apne-hypopnea index (AHI), oxygen desaturation index (ODI) for 3% were similar in two genders. Percentage of total light sleep (Stage 1+2) was significantly more in males while Stage 3 (slow wave sleep: SWS) was more in females. Total apneas were significantly more in males and hypopneas were significantly more in females. The factors associated with AHI were NC and BMI in males and AC and BMI in females.
Discussion
We found that, females are more hypopneic and men are more apneic, in a study group of similar apne-hypopnea indexed patients. The different distribution of fat in genders seems to effect the apnea/hypopnea predominance. The clinical significance of the apnea and hypopnea indexes separately can be related with SWS percentage. Prospective studies are needed to evaluate the effect of apneas and hypopneas on morbidity and mortality in both genders
The Application of Probiotics for the Purpose of Growing Catfish (Clarias batrachus) in Malumbi Village, East Sumba
The community service activity reported in this paper was conducted in Malumbi Village, East Sumba Regency, East Nusa Tenggara. The target of this community service was the Tani Tunas Baru group and the Malumbi Farmer group. The purpose of this service was to provide knowledge and information to these two farmer groups about good and correct fish farming techniques and the application of EM-4 probiotics as feed for catfish. The activity consisted of two, namely workshop and mentoring. The service provided new knowledge and insight to the two farmer groups. The farmers were shown activities such as preparation for maintenance ponds, fertilization techniques, seed spreading techniques in new containers, good and correct feeding techniques, and water replacement systems car. In addition, assistance related to probiotic applications was also implemented. The results showed that the administration of probiotics EM-4 gave good results on the growth rate and survival of the catfish each by 18% and 80% when compared to controls. It is hoped that fish farmers in the Tunas Baru and Malumbi groups are able to apply the knowledge that they have learned
Mitochondrial Priming by CD28
T cell receptor (TCR) signaling without CD28 can elicit primary effector T cells, but memory T cells generated during this process are anergic, failing to respond to secondary antigen exposure. We show that, upon T cell activation, CD28 transiently promotes expression of carnitine palmitoyltransferase 1a (Cpt1a), an enzyme that facilitates mitochondrial fatty acid oxidation (FAO), before the first cell division, coinciding with mitochondrial elongation and enhanced spare respiratory capacity (SRC). microRNA-33 (miR33), a target of thioredoxin-interacting protein (TXNIP), attenuates Cpt1a expression in the absence of CD28, resulting in cells that thereafter are metabolically compromised during reactivation or periods of increased bioenergetic demand. Early CD28-dependent mitochondrial engagement is needed for T cells to remodel cristae, develop SRC, and rapidly produce cytokines upon restimulation—cardinal features of protective memory T cells. Our data show that initial CD28 signals during T cell activation prime mitochondria with latent metabolic capacity that is essential for future T cell responses
Prevalence of sleep disorders in the Turkish adult population epidemiology of sleep study
Sleep disorders constitute an important public health problem. Prevalence of sleep disorders in Turkish adult population was investigated in a nationwide representative sample of 5021 Turkish adults (2598 women and 2423 men, response rate: 91%) by an interviewer‐administered questionnaire. Insomnia was defined by the DSM‐IV criteria, habitual snoring and risk for sleep‐related breathing disorders (SDB) by the Berlin questionnaire, excessive daytime sleepiness (EDS) by the Epworth sleepiness scale score, and restless legs syndrome (RLS) by the complaints according to the International Restless Legs Syndrome Study Group criteria. Mean age of the participants was 40.7 ± 15.1 (range 18 to 90) years. Prevalence rates (men/women) were insomnia 15.3% (10.5%/20.2%; P < 0.001), high probability of SDB 13.7% (11.1%/20.2%; P < 0.001), EDS 5.4% (5.0%/5.7%; P: 0.09), RLS 5.2% (3.0%/7.3%; P < 0.001). Aging and female gender were associated with higher prevalence of sleep disorders except for habitual snoring. Prevalence rates of the sleep disorders among Turkish adults based on the widely used questionnaires were close to the lower end of the previous estimates reported from different parts of the world. These findings would help for the assessment of the health burden of sleep disorders and addressing the risk groups for planning and implementation of health care
Comorbidity as a prognostic variable in multiple myeloma: comparative evaluation of common comorbidity scores and use of a novel MM–comorbidity score
Comorbidities have been demonstrated to affect progression-free survival (PFS) and overall survival (OS), although their impact in multiple myeloma (MM) patients is as yet unsettled. We (1) assessed various comorbidities, (2) compared established comorbidity indices (CIs; Charlson comorbidity index (CCI), hematopoietic cell transplantation-specific comorbidity index (HCT-CI)), Kaplan Feinstein (KF) and Satariano index (SI) and (3) developed a MM-CI (Freiburger comorbidity index, FCI) in 127 MM patients. Univariate analysis determined moderate or severe pulmonary disease (hazard ratio (HR): 3.5, P<0.0001), renal impairment (via estimated glomerular filtration rate (eGFR); HR: 3.4, P=0.0018), decreased Karnofsky Performance Status (KPS, HR: 2.7, P=0.0004) and age (HR: 2, P=0.0114) as most important variables for diminished OS. Through multivariate analysis, the eGFR ⩽30 ml/min/1.73m2, impaired lung function and KPS ⩽70% were significant for decreased OS, with HRs of 2.9, 2.8 and 2.2, respectively. Combination of these risk factors within the FCI identified significantly different median OS rates of 118, 53 and 25 months with 0, 1 and 2 or 3 risk factors, respectively, (P<0.005). In light of our study, comorbidities are critical prognostic determinants for diminished PFS and OS. Moreover, comorbidity scores are important treatment decision tools and will be valuable to implement into future analyses and clinical trials in MM
An evaluation of the factors that affect the health-related quality of life of children following myelosuppressive chemotherapy
PurposeThe purposes of this study, in children who were assessed 1 week after the administration of myelosuppressive chemotherapy were: to compare the total and subscale scores on a generic measure of health-related quality of life (HRQOL) to normative data from healthy children and describe the relationships between demographic, clinical, and symptom characteristics of children with cancer and generic and disease-specific dimensions of HRQOL.MethodsPatients (n = 61) were predominantly male (52.5%), minority (63.9%), and 14.7 years of age. Children completed the Memorial Symptom Assessment Scale for 10- to 18-year olds, the PedsQL™ Generic and Cancer Modules, and the Karnofsky Performance Status (KPS) scale 1 week after the start of a chemotherapy cycle.ResultsThe mean number of symptoms per patient was 10.6. Compared with the normative sample, children with cancer reported significantly lower scores for the total scale and all of the subscales except emotional and social functioning. No significant differences were found between any demographic characteristics and total or subscale scores on the generic or disease-specific measures of HRQOL. Lower KPS scores were associated with poorer generic and disease-specific HRQOL scores. In addition, a higher number of symptoms was associated with poorer generic and disease-specific HRQOL scores. Finally, higher symptom distress scores were associated with poorer generic and disease-specific HRQOL scores.ConclusionAmong the demographic, clinical, and symptom characteristics studied, poorer functional status and higher symptom burden were associated with significant decreases in HRQOL in children who received myelosuppressive chemotherapy
Virus-Receptor Mediated Transduction of Dendritic Cells by Lentiviruses Enveloped with Glycoproteins Derived from Semliki Forest Virus
Lentiviruses have recently attracted considerable interest for their potential as a genetic modification tool for dendritic cells (DCs). In this study, we explore the ability of lentiviruses enveloped with alphaviral envelope glycoproteins derived from Semliki Forest virus (SFV) to mediate transduction of DCs. We found that SFV glycoprotein (SFV-G)-pseudotyped lentiviruses use C-type lectins (DC-SIGN and L-SIGN) as attachment factors for transduction of DCs. Importantly, SFV-G pseudotypes appear to have enhanced transduction towards C-type lectin-expressing cells when produced under conditions limiting glycosylation to simple high-mannose, N-linked glycans. These results, in addition to the natural DC tropism of SFV-G, offer evidence to support the use of SFV-G-bearing lentiviruses to genetically modify DCs for the study of DC biology and DC-based immunotherapy
Complexity Theory for a New Managerial Paradigm: A Research Framework
In this work, we supply a theoretical framework of how organizations
can embed complexity management and sustainable development into their policies
and actions. The proposed framework may lead to a new management paradigm,
attempting to link the main concepts of complexity theory, change management,
knowledge management, sustainable development, and cybernetics. We highlight
how the processes of organizational change have occurred as a result of the move to
adapt to the changes in the various global and international business environments
and how this transformation has led to the shift toward the present innovation
economy. We also point how organizational change needs to deal with sustainability,
so that the change may be consistent with present needs, without compromising
the future
Platelet-rich plasma for regeneration of neural feedback pathways around dental implants: a concise review and outlook on future possibilities
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