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Nevin Manimala Statistics

Effect of CoQ10 Supplement on Spermogram Parameters and Sexual Function of Infertile Men Referred to The Infertility Center of Fatemieh Hospital, Hamadan, Iran, 2019: A Randomized Controlled Trial Study

Int J Fertil Steril. 2023 Feb 1;17(2):99-106. doi: 10.22074/ijfs.2022.544330.1234.

ABSTRACT

BACKGROUND: The aim of this study was to investigate the effects of the antioxidant supplement of CoQ10 and placebo in the male infertility treatment.

MATERIALS AND METHODS: The randomized controlled trial study was designed as a clinical trial. Samples in each group consisted of 30 members. The first group received 1 daily dose of 100 mg coenzyme Q10 capsules and the second group received a placebo treatment. Treatment in both groups lasted 12 weeks. Before and after the intervention of semen analysis, hormonal measurement of testosterone, prolactin, luteinizing hormone (LH), follicle-stimulating hormone (FSH) and thyroid stimulating hormone (TSH) were done. Sexual function was assessed before and after the intervention by using the International Index of Erectile Dysfunction questionnare.

RESULTS: The mean age of participants was 34.07 (5.26) years in the CoQ10 group and 34.83 (6.22) in the placebo one. Normal volume of semen (P=0.10), viscosity (P=0.55), sperm count (P=0.28), and sperm motility (P=0.33) in the CoQ10 group increased without statistically significant differences. But the normal sperm morphology increased with statistically significant differences in the CoQ10 group (P=0.01). There was an increase in normal FSH levels and testosterone levels in the CoQ10 group compared with the placebo patients, but these differences were not statistically significant (respectively P=0.58, P=0.61). The results also revealed that the scores of erectile function (P=0.95), orgasm (P=0.86), satisfaction with sexual intercourse (P=0.61), overall satisfaction (P=0.69) and the score of the International Index of Erectile Function (IIEF, P=0.82) were greater after the intervention in the CoQ10 group than in the placebo group although the difference was not statistically significant.

CONCLUSION: The use of CoQ10 supplement can improve sperm morphology; however, in other sperm parameters and also in some hormones increased after the intervention, this was not statistically significant and therefore the result is not conclusive (registration number: IRCT20120215009014N322).

PMID:36906826 | DOI:10.22074/ijfs.2022.544330.1234

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Reference values for interleukin-6 in the amniotic fluid of asymptomatic pregnant women

Acta Obstet Gynecol Scand. 2023 Apr;102(4):480-485. doi: 10.1111/aogs.14524.

ABSTRACT

INTRODUCTION: Nowadays, proinflammatory factors are considered to play an important role in the pathophysiology of threatened preterm labor or chorioamnionitis. The aim of this study was to establish the normal reference range for interleukin-6 (IL-6) levels in the amniotic fluid and to identify factors which may alter this value.

MATERIAL AND METHODS: Prospective study in a tertiary-level center including asymptomatic pregnant women undergoing amniocentesis for genetic studies from October 2016 to September 2019. IL-6 measurements in amniotic fluid were performed using a fluorescence immunoassay with microfluidic technology (ELLA Proteinsimple, Bio Techne). Maternal history and pregnancy data were also recorded.

RESULTS: This study included 140 pregnant women. Of those, women who underwent termination of pregnancy were excluded. Therefore, a total of 98 pregnancies were included in the final statistical analysis. The mean gestational age was 21.86 weeks (range: 15-38.7) at the time of amniocentesis, and 38.6 weeks (range: 30.9-41.4) at delivery. No cases of chorioamnionitis were reported. The log10 IL-6 values follow a normal distribution (W = 0.990, p = 0.692). The median, and the 5th, 10th, 90th, and 95th percentiles for IL-6 levels were 573, 105, 130, 1645, and 2260 pg/mL, respectively. The log10 IL-6 values were not affected by gestational age (p = 0.395), maternal age (p = 0.376), body mass index (p = 0.551), ethnicity (p = 0.467), smoking status (p = 0.933), parity (p = 0.557), method of conception (p = 0.322), or diabetes mellitus (p = 0.381).

CONCLUSIONS: The log10 IL-6 values follow a normal distribution. IL-6 values are independent of gestational age, maternal age, body mass index, ethnicity, smoking status, parity and method of conception. Our study provides a normal reference range for IL-6 levels in the amniotic fluid that can be used in future studies. We also observed that normal IL-6 values were higher in the amniotic fluid than in serum.

PMID:36906815 | DOI:10.1111/aogs.14524

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Comparing Restrictive vs. Liberal Oxygen Strategies for Trauma Patients: The TRAUMOX2 Trial – Statistical Analysis Plan

Acta Anaesthesiol Scand. 2023 Mar 11. doi: 10.1111/aas.14230. Online ahead of print.

ABSTRACT

The international ATLS (Advanced Trauma Life Support) guidelines recommend that all severely injured trauma patients receive supplemental oxygen based on very limited evidence. The TRAUMOX2 trial randomises adult trauma patients to a restrictive or liberal oxygen strategy for eight hours. The primary composite outcome consists of 30-day mortality and/or development of major respiratory complications (pneumonia and/or acute respiratory distress syndrome; ARDS). This manuscript presents the statistical analysis plan for TRAUMOX2. Patients are randomised 1:1 in variable block sizes of four, six and eight, stratified by including centre (prehospital base or trauma centre) and tracheal intubation at inclusion. The trial will include 1420 patients to be able to detect a 33% relative risk reduction with the restrictive oxygen strategy of the composite primary outcome with 80% power at the 5% significance level. We will conduct modified intention-to-treat analyses on all randomised patients and per-protocol analyses for the primary composite outcome and key secondary outcomes. The primary composite outcome and two key secondary outcomes will be compared between the two allocated groups using logistic regression reported as odds ratios (ORs) with 95% confidence intervals (CI) adjusted for the stratification variables as in the primary analysis. A P-value below 5% will be considered statistically significant. A Data Monitoring and Safety Committee (DMSC) has been established to conduct interim analyses after inclusion of 25% and 50% of the patients. This statistical analysis plan of the TRAUMOX2 trial will minimise bias and add transparency to the statistics applied in the analysis of the trial. The results will add evidence on restrictive and liberal supplemental oxygen strategies for trauma patients. This article is protected by copyright. All rights reserved.

PMID:36906804 | DOI:10.1111/aas.14230

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Safety of COVID-19 vaccination in pregnant women and their neonatal outcome: a narrative Review

J Matern Fetal Neonatal Med. 2023 Dec;36(1):2183750. doi: 10.1080/14767058.2023.2183750.

ABSTRACT

BACKGROUND: Even through the fact that pregnant women are more and more severely infected with COVID-19 disease, there are still doubts about vaccinating these people due to the lack of sufficient evidence base information. So in this systematic review, we decided to study vaccinated and unvaccinated pregnant women regarding maternal, fetal and neonatal complications and outcomes.

THE STRATEGY OF SEARCHING: Between 30 December 2019 and 15 October 2021, electronic searches were performed on the databases of PubMed, Scopus, Google Scholar, and Cochrane library by searching in English and free full text. Keywords searched included these: maternal outcome, neonatal outcome, pregnancy, and COVID-19 vaccination. Among 451 articles, finally, seven studies were included to study pregnancy outcomes in vaccinated women compared to unvaccinated for systematic review purposes.

RESULTS: In this study 30257 vaccinated women in their third trimester compared to 132339 unvaccinated women in terms of age, the root of delivery, neonatal adverse outcomes. There were no significant differences between two groups in terms of: IUFD, and 1 min Apgar score, C/S rate, and NICU admission between the two groups, however, the rate of SGA, IUFD, and also neonatal jaundice, asphyxia, and hypoglycemia was more significant in the unvaccinated group comparing to the vaccinated group as a result. Among them, the chance of preterm labor pain was reported more among vaccinated patients. Emphasizing that, except 7.3% of the case population, everyone in the second and third trimesters had been vaccinated with mRNA COVID-19 vaccines.

CONCLUSION: COVID-19 vaccination during the second and third trimesters appears to be the right choice due to the immediate impact of COVID-19 antibodies on the developing fetus and formation of neonatal prophylaxis, as well as the absence of adverse outcomes for both the fetus and mothers.

PMID:36906793 | DOI:10.1080/14767058.2023.2183750

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Efficacy and safety of the surgical treatments for lower calyceal stones: A systematic review and network meta-analysis

Int J Surg. 2023 Mar 4. doi: 10.1097/JS9.0000000000000062. Online ahead of print.

ABSTRACT

OBJECTIVE: Efficacy and safety of 5 common surgical treatments for lower calyceal (LC) stones were assessed for LC stones≤20 mm.

METHODS: A systematic literature search was conducted up to June 2020 using PUBMED, EMBASE and Cochrane Library. The study has been registered in PROSPERO, CRD42021228404. Randomized controlled trials evaluating efficacy and safety of 5 common surgical treatments for LC stones were collected, including percutaneous nephrolithotomy (PCNL), MiniPCNL (MPCNL), UltraminiPCNL (UMPCNL), extracorporeal shock wave lithotripsy (SWL) and retrograde intrarenal surgery (RIRS). Heterogeneity among studies was assessed by using the global inconsistency and local inconsistency. Both pooled Odds ratio (OR) along with 95% credible interval (CI) and the surface under the cumulative ranking curve (SUCRA) values, were calculated to assess the outcomes, paired comparisons of efficacy and safety of 5 treatments.

RESULTS: 9 peer-reviewed RCTs, comprising 1674 patients, in recent 10 years, were included. Heterogeneity tests showed no statistical significance, and a consistency model was chosen, respectively. The order of SUCRA values for efficacy was as follows: PCNL (79.4), MPCNL (75.2), UMPCNL (66.3), RIRS (29), and SWL (0). For safety: SWL (84.2), UMPCNL (82.2), RIRS (52.9), MPCNL (16.6) and PCNL (14.1).

CONCLUSION: In the current study, all 5 treatments are both effective and safe. Many factors must be considered to choose surgical treatments for LC stones≤20 mm; the results that we separate conventional PCNL into PCNL, MPCNL and UMPCNL make the questions even more controversial. However, relative judgements are still needed to be used as reference data in clinical managements. For efficacy, PCNL>MPCNL>UMPCNL>RIRS>SWL, SWL is statistically inferior to other 4 treatments, respectively. RIRS is statistically inferior to PCNL and MPCNL, respectively. For safety, SWL>UMPCNL>RIRS>MPCNL>PCNL, SWL is statistically superior to RIRS, MPCNL and PCNL, respectively. RIRS is statistically superior to PCNL. We cannot reach conclusions which surgical treatment is the best choice for all patients with LC stones≤20 mm; Therefore, tailored treatments based on individual patients still demand more attention than ever before for both patients and urologists.

PMID:36906759 | DOI:10.1097/JS9.0000000000000062

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Impact of two ketogenic diet types in refractory childhood epilepsy

Pediatr Res. 2023 Mar 11. doi: 10.1038/s41390-023-02554-w. Online ahead of print.

ABSTRACT

BACKGROUND: Ketogenic diet (KD) refers to any diet in which food composition induces a ketogenic state of human metabolism.

OBJECTIVE: To assess short- and long-term efficacy, safety, and tolerability of KD [classic KD and modified Atkins diet (MAD)] in childhood drug-resistant epilepsy (DRE) and to investigate the effect of KD on electroencephalographic (EEG) features of children with DRE.

METHODS: Forty patients diagnosed with DRE according to International League Against Epilepsy were included and randomly assigned into classic KD or MAD groups. KD was initiated after clinical, lipid profile and EEG documentation, and regular follow-up was done for 24 months.

RESULTS: Out of 40 patients with DRE, 30 completed this study. Both classic KD and MAD were effective in seizure control as 60% in classic KD group and 53.33% in MAD group became seizure free, and the remaining showed ≥50% seizure reduction. Lipid profile remained within acceptable levels throughout the study period in both groups. Adverse effects were mild and managed medically with an improvement of growth parameters and EEG during the study period.

CONCLUSIONS: KD is an effective and safe non-pharmacologic, non-surgical therapy for the management of DRE with a positive impact on growth and EEG.

IMPACT: Both common types of KD (classic KD and MAD) are effective for DRE, but unfortunately, nonadherence and dropout rates are frequent. High serum lipid profile (cardiovascular AE) is often suspected in children following a high-fat diet, but lipid profile remained in the acceptable level up to 24 months. Therefore, KD constitutes a safe treatment. KD had a positive impact on growth, despite inconsistent results of the KD’s effect on growth. In addition to showing strong clinical effectiveness, KD also considerably decreased the frequency of interictal epileptiform discharges and enhanced the EEG background rhythm.

PMID:36906721 | DOI:10.1038/s41390-023-02554-w

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Resilience and coping behaviour among adolescents in a high-income city-state during the COVID-19 pandemic

Sci Rep. 2023 Mar 11;13(1):4061. doi: 10.1038/s41598-023-31147-0.

ABSTRACT

The study aimed to determine the resilience of multi-ethnic, multi-cultural adolescent students in cosmopolitan Singapore, their coping abilities, and the impact on their social and physical activities during the COVID-19 pandemic and its association with their resilience. A total of 582 adolescents in post-secondary education institutes completed an online survey from June to November 2021. The survey assessed their sociodemographic status, resilience level using the Brief Resilience Scale (BRS) and Hardy-Gill Resilience Scale (HGRS), the impact of the COVID-19 pandemic on their daily activities, life settings, social life, social interactions, and coping ability in these aspects of life. Poor ability to cope with school life (adjusted beta = – 0.163, 95% CI – 1.928 to 0.639, p < 0.001), staying home (adjusted beta = – 0.108, 95% CI = – 1.611 to – 0.126, p = 0.022), sports (adjusted beta = – 0.116, 95% CI – 1.691 to – 0.197, p = 0.013) and friends (adjusted beta = – 0.143, 95% CI – 1.904 to – 0.363, p = 0.004) were associated with statistically significant low resilience level measured with HGRS. About half and a third of the participants reported normal and low resilience, respectively, based on BRS (59.6%/32.7%) and HGRS (49.0%/29.0%) scores. Adolescents of Chinese ethnicity and low socioeconomic status had comparatively lower resilience scores. Approximately half of the adolescents in this study had normal resilience despite the COVID-19 pandemic. Adolescents with lower resilience tended to have lower coping abilities. The study did not compare changes in the social life and coping behaviour of the adolescents due to COVID-19, as data on these aspects prior to the pandemic was unavailable.

PMID:36906711 | DOI:10.1038/s41598-023-31147-0

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Prevalence of peripapillary hyperreflective ovoid mass-like structures (PHOMS) in suspected papilloedema in children

Eye (Lond). 2023 Mar 11. doi: 10.1038/s41433-023-02489-w. Online ahead of print.

ABSTRACT

PURPOSE: Suspected papilloedema is a frequent cause of referral to paediatric ophthalmology clinics. Recent publications have described a new finding called peripapillary hyperreflective ovoid mass-like structures (PHOMS) that may cause pseudopapilloedema. We evaluated the optical coherence tomography (OCT) scans of the optic nerve in all children referred with suspected papilloedema for the presence of PHOMS and report their frequency.

METHODS: The optic nerve OCT scans from children seen in our suspected papilloedema virtual clinic between August 2016 and March 2021 were evaluated for the presence of PHOMS by three assessors. A Fleiss’ kappa statistic was calculated to test the agreement between the assessors for the presence of PHOMS.

RESULTS: A total of 220 scans from 110 patients were evaluated during the study period. The mean patient age was 11.2 SD ± 3.4, (range 4.1-16.8). PHOMS were identified in at least one eye in 74 (67.3%) patients. Of these, 42 (56.8%) patients had bilateral and 32 (43.2%) had unilateral PHOMS. Excellent agreement between assessors for the presence of PHOMS (Fleiss’ kappa 0.9865) was observed. PHOMS were common in association with other identified causes of pseudopapilloedema (81.25%) but were also common in papilloedema (66.67%) and otherwise normal discs (55.36%).

CONCLUSIONS: Misdiagnosis of papilloedema can lead to unnecessary and invasive tests. PHOMS are found frequently within the paediatric population referred for suspected disc swelling. They appear to be an independent cause of pseudopapilloedema but are often seen in conjunction with true papilloedema and other causes of pseudopapilloedema.

PMID:36906695 | DOI:10.1038/s41433-023-02489-w

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Shared genetic architecture between attention-deficit/hyperactivity disorder and lifespan

Neuropsychopharmacology. 2023 Mar 11. doi: 10.1038/s41386-023-01555-x. Online ahead of print.

ABSTRACT

There is evidence linking ADHD to a reduced life expectancy. The mortality rate in individuals with ADHD is twice that of the general population and it is associated with several factors, such as unhealthy lifestyle behaviors, social adversity, and mental health problems that may in turn increase mortality rates. Since ADHD and lifespan are heritable, we used data from genome-wide association studies (GWAS) of ADHD and parental lifespan, as proxy of individual lifespan, to estimate their genetic correlation, identify genetic loci jointly associated with both phenotypes and assess causality. We confirmed a negative genetic correlation between ADHD and parental lifespan (rg = -0.36, P = 1.41e-16). Nineteen independent loci were jointly associated with both ADHD and parental lifespan, with most of the alleles that increased the risk for ADHD being associated with shorter lifespan. Fifteen loci were novel for ADHD and two were already present in the original GWAS on parental lifespan. Mendelian randomization analyses pointed towards a negative causal effect of ADHD liability on lifespan (P = 1.54e-06; Beta = -0.07), although these results were not confirmed by all sensitivity analyses performed, and further evidence is required. The present study provides the first evidence of a common genetic background between ADHD and lifespan, which may play a role in the reported effect of ADHD on premature mortality risk. These results are consistent with previous epidemiological data describing reduced lifespan in mental disorders and support that ADHD is an important health condition that could negatively affect future life outcomes.

PMID:36906694 | DOI:10.1038/s41386-023-01555-x

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Interplay between hopping dimerization and quasi-periodicity on flux-driven circular current in an incommensurate Su-Schrieffer-Heeger ring

Sci Rep. 2023 Mar 11;13(1):4093. doi: 10.1038/s41598-023-31354-9.

ABSTRACT

We report for the first time the phenomenon of flux-driven circular current in an isolated Su-Schrieffer-Heeger (SSH) quantum ring in presence of cosine modulation in the form of the Aubry-André-Harper (AAH) model. The quantum ring is described within a tight-binding framework, where the effect of magnetic flux is incorporated through Peierls substitution. Depending on the arrangements of AAH site potentials we have two different kinds of ring systems that are referred to as staggered and non-staggered AAH SSH rings. The interplay between the hopping dimerization and quasiperiodic modulation leads to several new features in the energy band spectrum and persistent current which we investigate critically. An atypical enhancement of current with increasing AAH modulation strength is obtained that gives a clear signature of transition from a low conducting phase to a high conducting one. The specific roles of AAH phase, magnetic flux, electron filling, intra- and inter-cell hopping integrals, and ring size are discussed thoroughly. We also study the effect of random disorder on persistent current with hopping dimerization to compare the results with the uncorrelated ones. Our analysis can be extended further in studying magnetic responses of similar kinds of other hybrid systems in presence of magnetic flux.

PMID:36906684 | DOI:10.1038/s41598-023-31354-9