Is there any relationship between RDW levels and atrial fibrillation in hypertensive patient?

Background

Atrial fibrillation (AF) is the most common cardiac arrhythmia and increases the risk of stroke and death. Patients with hypertensive have an increased risk of developing atrial fibrillation. RDW (Red blood cell distribution width) levels are elevated in cardiovascular disorders including heart failure, stable coronary disease, acute coronary syndrome, slow coronary flow and stroke.

Objective

We aimed to investigate the relation between RDW and AF in patients with hypertensive

Method

We retrospectively examined 126 consecutive hypertensive patients (63 hypertensive patients with AF and 63 hypertensive patients without AF matched with age and sex

Results

The mean age of the study population was 71,09± 8,50 (af group) and 70,97±8,24 (non-af group) years. RDW level was different among patients with atrial fibrillation and without atrial fibrillation.(15,13±1,58 and 14,05±1,15 p<001) . Logistic regression analysis showed that RDW and left atrial dimension were only independently risk factory associated with atrial fibrillation. (Rdw odds ratio:1,846 CI; 1,221–2,793 p<0,05). Roc curve analyses were applied to determine the cut-off point. Cut-off point was at 14,195 and Sensitive, specificity was %71,4, %56 respectively.

Conclusion

RDW levels were higher in hypertensive patients with atrial fibrillation. An increased RDW level in the patient with hypertension may alert physician on developing or presence of atrial fibrillation.     

Is there a relationship between Wolfram syndrome carrier status and suicide?

Wolfram syndrome (WFS) is a rare, autosomal recessive neurodegenerative disorder. An increased risk of psychiatric disorders and suicide has been reported for heterozygote carriers. In this study we investigated whether mutations in the WFS gene are associated with suicide in the general population. The gene for WFS (WFS1) has recently been mapped to chromosome 4p16.1, and its genomic structure has been characterized. We screened the entire WFS1 ORF in a panel of 100 completed suicides, 60 blood donors not known to have psychiatric illness, and 100 donors with a negative history of depression or suicidal behavior. We did not find evidence of an increased incidence of WFS carriers in the suicide panel and concluded that WFS1 carrier status is not a significant contributor to suicide in the general population. Screening of this highly polymorphic gene resulted in the detection of 33 variants, 13 of which cause amino acid changes. Seven of these changes have not been previously reported and six were unique to our suicide panel.     

Is there a relationship between treatment for infertility and gestational trophoblastic disease?

BACKGROUND: The aim of the study was to record the incidence of treatment for infertility prior to development of gestational trophoblastic disease (GTD). METHODS AND RESULTS: A retrospective analysis was undertaken of 231 consecutive women receiving chemotherapy for persistent GTD at Weston Park Hospital, Sheffield, from 1991 to 2001. Three patients in this group had received treatment for infertility prior to their molar pregnancy. In a control group of 226 patients not requiring treatment for persistent GTD, four had had treatment for infertility just before their molar pregnancy, and in a further control group of 208 'normal' pregnancies, eight patients had had treatment for infertility prior to conception. CONCLUSION: We conclude that we can demonstrate no relationship between infertility treatment and subsequent development of GTD.     

Is there a relationship between factor V Leiden and type 2 diabetes?

Background  

Diabetes is well known risk factor for thrombotic events. The association between diabetes and venous thromboembolism is still matter of debate. However, during diabetes an acquired thrombophilia is present and is due to the non-enzymatic glycosilation of clotting inhibitors as antithrombin thus leading to hypercoagulable state. A possibile relationship between the presence of FVL gene variant in type 1 or type 2 diabetes has been hypothysed by several reports in the Literature with non-univocal findings.     

Is salivary IgA level a potential biomarker for immunosuppression in HIV‐positive children? A systematic review and meta‐analysis

The aim of this systematic review was to determine whether or not assessment of salivary secretory immunoglobulin A (sIgA) levels could be a potential biomarker for immunosuppression in HIV‐positive children. The Patient, Exposure, Comparative, Outcome question was “Is sIgA level a potential biomarker for immunosuppression in HIV‐positive children?” Electronic and manual literature searches were conducted in indexed databases (MEDLINE, PubMed, EMBASE, ScienceDirect, and SCOPUS databases) up to and including June 2017. The primary outcome was total mean salivary levels of IgA among HIV seropositive and seronegative children (controls). The weighted mean differences (WMD) of outcomes and 95% confidence intervals (CI) for total mean salivary IgA levels were calculated using a random effect model. Six studies were included. Three studies showed significantly lower salivary IgA levels in HIV‐infected children compared with controls. Two studies showed comparable IgA levels in HIV infected and controls. One study showed significantly higher levels of salivary IgA in HIV‐infected children as compared to controls. Considering the total mean salivary IgA levels among HIV seropositive and seronegative children, a high degree of heterogeneity (Q value = 254.09, P  < .0001, I² = 98.82%) was noticed among both groups. The overall WMD was not significant (WMD = ?1.18, 95% CI, ?1.91 to ?0.44, P  = .39). Whether salivary IgA level is a potential biomarker for immunosuppression in HIV‐positive children remains debatable because of limited information available in the current literature. Further, high‐quality case‐control studies with larger sample size and more solid methodological aspects are required.     

Early atopic disease and early childhood immunization – is there a link?

Background: There are frequent concerns about early immunizations among the parents of children at heightened risk for atopy. The study assessed the effect of vaccine immunization before the first birthday on eczema severity and allergic sensitization in the second year of life. Methods: A total of 2184 infants, aged 1–2 years, with established atopic dermatitis and a family history of allergy, from 97 study centres in 10 European countries, South Africa and Australia were included. Exposure to vaccines (diphtheria, tetanus, pertussis, polio, Haemophilus influenzae Type B, hepatitis B, mumps, measles, rubella, varicella, BCG, meningococci and pneumococci) and immunization dates were recorded from immunization cards. Immunoglobulin E (IgE) was determined by RAST and eczema severity was assessed by scoring atopic dermatitis (SCORAD). Results: Immunization against any target was not associated with an increased risk of allergic sensitization to food or inhalant allergens. Varicella immunization (only 0.7% immunized) was inversely associated with total IgE > 30 kU/l (OR 0.27; 95% CI 0.08–0.87) and eczema severity (OR 0.34; 95% CI 0.12–0.93). Pertussis immunization (only 1.7% nonimmunized) was inversely associated with eczema severity (OR 0.30; 95% CI 0.10–0.89). Cumulative received vaccine doses were inversely associated with eczema severity (P = 0.0107). The immunization coverage of infants before and after the onset of atopic dermatitis was similar. Conclusion: In children at heightened risk for atopy, common childhood immunization in the first year is not associated with an increased risk of more severe eczema or allergic sensitization. Parents of atopic children should be encouraged to fully immunize their children.     

Threshold levels in food challenge and specific IgE in patients with egg allergy: is there a relationship?

BACKGROUND: Previously published articles described a relationship between food-specific IgE and the outcome of food challenge in children with egg allergy. These investigations defined different levels of predictive values in different study populations and thus pointed toward the possibility of a certain level of specific IgE to egg white predicting a positive outcome in food challenge. OBJECTIVE: The purpose of this study was to determine the utility of specific IgE in estimating threshold level to predict a positive outcome in food challenge. METHODS: Fifty-six children were evaluated for egg allergy by titrated oral challenges. Sera were analyzed for specific IgE to egg white in 56 patients by using the Magic Lite test and 32 of 56 patients also by the CAP test. Values of specific IgE to egg white were compared to the outcome of challenges and the threshold level. RESULTS: The diagnostic level of specific IgE predicting clinical reactivity in this population with greater than 95% certainty was identified as 10.8 standardized units/mL (Magic Lite) and 1.5 kilounits of allergen-specific IgE/L (CAP), respectively. We found no significant relationship between the specific IgE concentration (egg white) and the challenge threshold level. CONCLUSION: Although the specific IgE concentration correlated to a positive outcome in food challenge, there was no significant relationship between the quantification of specific IgE and the challenge threshold level. Therefore the standardized food challenge still remains the gold standard in the diagnosis of food allergy.     

The extracellular matrix – the under‐recognized element in lung disease?

The lung is composed of airways and lung parenchyma, and the extracellular matrix (ECM) contains the main building blocks of both components. The ECM provides physical support and stability to the lung, and as such it has in the past been regarded as an inert structure. More recent research has provided novel insights revealing that the ECM is also a bioactive environment that orchestrates the cellular responses in its environs. Changes in the ECM in the airway or parenchymal tissues are now recognized in the pathological profiles of many respiratory diseases, including asthma, chronic obstructive pulmonary disease (COPD), and idiopathic pulmonary fibrosis (IPF). Only recently have we begun to investigate whether these ECM changes result from the disease process, or whether they constitute a driving factor that orchestrates the pathological outcomes. This review summarizes our current knowledge of the alterations in the ECM in asthma, COPD, and IPF, and the contributions of these alterations to the pathologies. Emerging data suggest that alterations in the composition, folding or rigidity of ECM proteins may alter the functional responses of cells within their environs, and in so doing change the pathological outcomes. These characteristics highlight potential avenues for targeting lung pathologies in the future. This may ultimately contribute to a better understanding of chronic lung diseases, and novel approaches for finding therapeutic solutions. © 2016 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.     

Is there a link between subjective daytime somnolence and sickness absenteeism? A study in a working population

A number of studies have highlighted the increasing incidence and financial cost of sleep-related disorders in the general population, but little research has been carried out on the impact of subjective daytime somnolence on health status. The existence of a survey of the health of employees of the French National Gas and Electricity Board has allowed us to investigate this question and measure the link between subjective daytime somnolence and sickness absenteeism, used here as a general health indicator. In order to evaluate the quality of sleep over the previous 3 months, a questionnaire was given to each participant. The association between subjective daytime somnolence and absence as a result of sickness was explored using the data of sickness absenteeism provided by the company's social security department during a 12-month follow-up period. Of our 1105 subjects, 6.7% reported severe subjective daytime somnolence of 3 days or more a week and 30% of our study population had at least one spell of sickness absence during the 12-month period of follow-up. A strong association was observed between subjective daytime somnolence and sickness absence, which remained significant even after adjustment for potential confounding variables (age, sex, employment grade, sleep symptoms and self-reported diseases). The odds-ratio for absence as a result of sickness during the follow-up period associated with subjective daytime somnolence of 3 days or more a week was 2.2 (95% CI: 1.3--3.8). Employees suffering from severe subjective daytime somnolence lose more working days for health reasons than their more alert colleagues. This may have long-term implications for employees' health.     

Choroidal abnormalities in café‐au‐lait syndromes: a new differential diagnostic tool?

The best known café‐au‐lait syndrome is neurofibromatosis type 1 (NF1). Legius syndrome (LS) is another, rarer syndrome with café‐au‐lait macules (CALMs). In young patients their clinical picture is often indistinguishable. We investigated the presence of choroidal abnormalities in syndromes with CALMs as a candidate tool for a more efficient diagnosis. Thirty‐four patients with NF1 (14 with a truncating mutation, 14 with a non‐truncating mutation and 6 with unknown mutation) and 11 patients with LS. All patients underwent an ophthalmological examination. Infrared images were performed. Choroidal nodules were diagnosed in 65% of the NF1 group. About 71% of NF1 patients with a truncating mutation and 50% of patients with a non‐truncating mutation were found to have nodules. Choroidal nodules were seen in 18% of the LS patients, never more than one nodule/eye was detected in this group. Choroidal nodules are more abundantly present in NF1 genotypes with truncating mutations. In contrast, the number of choroidal nodules in LS is comparable with their presence in healthy individuals. Especially at an early age, when the clinical picture is incomplete, the detection of choroidal nodules is of diagnostic value, and helps in an appropriate genetic counselling and follow‐up. These results support the suggestion to include choroidal nodules to the diagnostic criteria for NF1.