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Nevin Manimala Statistics

MiR-25 and KLF4 relationship has early prognostic significance in the development of cervical cancer

Pathol Res Pract. 2021 Apr 9;222:153435. doi: 10.1016/j.prp.2021.153435. Online ahead of print.

ABSTRACT

Cervical squamous cell carcinoma (SCC) is one of the common cancer types among women. MicroRNAs (miRNAs) are small non-coding RNAs that play an important role in the formation and development of many cancer types by regulating expression of their targets. While many studies have investigated the relationship between miRNAs and cervical cancer, no robust miRNA biomarkers have been defined yet for diagnosis of cervical lesions. In this study, we performed a statistical meta-analysis to identify miRNAs and a class compassion analysis to evaluate mRNAs with the power to discriminate between normal, intraepithelial lesions and invasive cancer samples. Differentially expressed (DE) mRNAs were compared with the targets of meta-miRNAs. After bioinfomatics analysis and qRT-PCR validations with cytology samples and FFPE tissues, we defined miR-25 and its target KLF4 (Kruppel-like factor 4) as candidate biomarkers for in vitro studies. Our results showed that miR-25 expression was significantly higher in precancerous lesions and invasive carcinoma while presenting consistent expression patterns in both cytological and FFPE tissue samples. In line with this, its direct target KLF4 expression decreased in precancerous lesions in cytological samples and also in the invasive cancer group in FFPE tissues. Furthermore, in vitro studies showed that mir-25 inhibition decreased proliferation and motility of HeLa cells and promoted an increase in the protein level of KLF4. We conclude that inhibition of miR-25 may upregulate KLF4 expression and regulate cell proliferation and motility in cervical cancer.

PMID:33862560 | DOI:10.1016/j.prp.2021.153435

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The effect of platelet-rich fibrin (PRF) on wound healing, adhesion, and hemostasis after endoscopic sinus surgery in patients with nasal polyposis

Am J Otolaryngol. 2021 Mar 29;42(5):103010. doi: 10.1016/j.amjoto.2021.103010. Online ahead of print.

ABSTRACT

PURPOSE: Chronic rhinosinusitis (CRS) is one of the most common chronic diseases seen worldwide. Endoscopic sinus surgery (ESS) has become a widely accepted procedure for medically refractory chronic rhinosinusitis and nasal polyps. Prevention of revision surgery often depends on good wound healing and less adhesion formation. In recent years, the effects of platelet-rich fibrin (PRF) on tissue healing have been addressed in many surgical branches, especially for dental implant surgery and plastic surgery.

METHODS: This prospective study was conducted with 50 patients who underwent endoscopic sinus surgery for the diagnosis of nasal polyposis. While the middle meatus in one nasal cavity was filled with PRF and supported with Nasopore, only Nasopore was used in the other nasal cavity middle meatus. The patients were followed up clinically at weeks 1, 2, 3, 4, 8, and 12 postoperatively. The assessor determined the presence of adhesion, crusting, bleeding, frontal ostium stenosis, granulation, and infection, and if present, the grades of these complications were scored according to a questionnaire.

RESULTS: In our study, adhesion, infection, bleeding, granulation, and frontal ostium stenosis were less common in the PRF group, and a statistically significant difference was found between the groups.

CONCLUSION: In our study, better results were obtained in terms of adhesion, infection, bleeding, granulation, and frontal ostium stenosis after ESS as a result of the effects of PRF on wound healing. The application of PRF is an inexpensive and easy procedure. PRF can be a good alternative to other types of tampons after ESS.

PMID:33862565 | DOI:10.1016/j.amjoto.2021.103010

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The benefit of intravenous thrombolysis prior to mechanical thrombectomy within the therapeutic window for acute ischemic stroke

Clin Imaging. 2021 Apr 5;79:3-7. doi: 10.1016/j.clinimag.2021.03.020. Online ahead of print.

ABSTRACT

The increase in risk for acute ischemic stroke (AIS) with age is well established. If not treated properly and promptly, AIS can result in permanent neurological damage and even death. This literature review assesses the clinical outcomes of AIS patients treated with both intravenous thrombolysis (IVT) prior to mechanical thrombectomy (MT) compared to those treated solely with mechanical thrombectomy. Randomized controlled trials (RCTs) and meta-analyses published from 2015 to 2020 and available on PubMed were selected for review, and their quantitative and qualitative findings were extrapolated and summarized. Post-hoc analyses from ASTER and ETIS trials were reviewed as well as the impact of combined therapy and monotherapy on large vessel occlusions (LVO). Clinical outcomes in all examined trials demonstrated significant successful reperfusion as well as a higher rate of functional independence at 90 days for IVT prior to MT. Concerns of thrombus fragility, safety and cost effectiveness of dual therapy are also addressed. Based on these findings, we recommend the use of IVT as a pretreatment procedure to MT for AIS when eligible for IVT. Recent articles further strengthen this recommendation and provide new insights that IVT prior to MT is especially beneficial for patients presenting with multiple LVOs localized to the anterior intracranial circulation. Additional multi-center RCTs are necessary for further analysis of statistical outcomes demonstrating mixed effects.

PMID:33862545 | DOI:10.1016/j.clinimag.2021.03.020

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Quercetin inhibits histamine-induced calcium influx in human keratinocyte via histamine H4 receptors

Int Immunopharmacol. 2021 Apr 13;96:107620. doi: 10.1016/j.intimp.2021.107620. Online ahead of print.

ABSTRACT

Histamine is released from mast cells when tissues are inflamed or stimulated by allergens. Activation of histamine receptors and calcium influx via TRPV1 could be related to histamine-induced itch and skin inflammation. Quercetin is known to have anti-inflammatory and anti-itching effects. This study aims to understand whether quercetin can directly affect histamine-induced calcium influx in human keratinocyte. In it, we investigated quercetin, which acts on histamine-induced intracellular free calcium ([Ca2+]i) elevation in human keratinocyte. Changes in [Ca2+]i were measured using spectrofluorometry and confocal Imaging. We detected the expression of IL-8 after treatment of quercetin using qRT-PCR and evaluated its anti-itching effect in BALB/c mice. We also performed a docking study to estimate the binding affinity of quercetin to H4 receptors. We found that quercetin pretreatment decreased histamine-induced [Ca2+]i elevation in a concentration-dependent manner. The inhibitory effect of quercetin on histamine-induced [Ca2+]i elevation was blocked by JNJ7777120, a selective H4 antagonist, as well as by U73122, a PLC inhibitor, and by GF109203X, a PKC inhibitor. We also found that H4 agonist (4-methylhistamine)-induced [Ca2+]i elevation could be inhibited by quercetin. Moreover, the selective TRPV1 blocker capsazepine significantly suppressed the quercetin-mediated inhibition of histamine-induced [Ca2+]i elevation, whereas the TRPV4 blocker GSK2193874 had no effect. Last, quercetin decreased histamine and H4 agonist-induced IL-8 expression in keratinocyte and inhibited the scratching behavior-induced compound 48/80 in BALB/c mice. The molecular docking study also showed that quercetin exhibited high binding affinities with H4 receptors (autodock scores for H4 = -8.7 kcal/mol). These data suggest that quercetin could decrease histamine 4 receptor-induced calcium influx through the TRPV1 channel and could provide a molecular mechanism of quercetin in anti-itching, anti-inflammatory, and unpleasant sensations.

PMID:33862555 | DOI:10.1016/j.intimp.2021.107620

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A time series analysis of the short-term association between climatic variables and acute respiratory infections in Singapore

Int J Hyg Environ Health. 2021 Apr 13;234:113748. doi: 10.1016/j.ijheh.2021.113748. Online ahead of print.

ABSTRACT

BACKGROUND: Acute respiratory infections (ARIs) are among the most common human illnesses globally. Previous studies that examined the associations between climate variability and ARIs or ARI pathogens have reported inconsistent findings. Few studies have been conducted in Southeast Asia to date, and the impact of climatic factors are not well-understood. This study aimed to investigate the short-term associations between climate variability and ARIs in Singapore.

METHODS: We obtained reports of ARIs from all government primary healthcare services from 2005 to 2019 and analysed their dependence on mean ambient temperature, minimum temperature and maximum temperature using the distributed lag non-linear framework. Separate negative binomial regression models were used to estimate the association between each temperature (mean, minimum, maximum temperature) and ARIs, adjusted for seasonality and long-term trend, rainfall, relative humidity, public holidays and autocorrelations. For temperature variables and relative humidity we reported cumulative relative risks (RRs) at 10th and 90th percentiles compared to the reference value (centered at their medians) with corresponding 95% confidence intervals (CIs). For rainfall we reported RRs at 50th and 90th percentiles compared to 0 mm with corresponding 95% CIs.

RESULTS: Statistically significant inverse S-curve shaped associations were observed between all three temperature variables (mean, minimum, maximum) and ARIs. A decrease of 1.1 °C from the median value of 27.8 °C to 26.7 °C (10th percentile) in the mean temperature was associated with a 6% increase (RR: 1.06, 95% CI: 1.03 to 1.09) in ARIs. ARIs also increased at 23.9 °C (10th percentile) compared to 24.9 °C of minimum temperature (RR: 1.11, 95% CI: 1.07 to 1.16). The effect of maximum temperature for the same comparison (30.5 °C vs 31.7 °C) was non-significant (RR: 1.02, 95% CI: 0.99 to 1.05). An increase in ambient temperature to 28.9 °C (90th percentile) was associated with an 18% decrease (RR: 0.82, 95% CI: 0.80 to 0.83) in ARIs. Similarly, ARIs decreased with the same increase to 90th percentile in minimum (RR: 0.84, 95% CI: 0.80 to 0.87) and maximum (RR: 0.89, 95% CI: 0.86 to 0.93) temperatures. Rainfall was inversely associated with ARIs and displayed similar shape in all three temperature models. Relative humidity, on the other hand, exhibited a U-shaped relationship with ARIs.

CONCLUSION: Our findings suggest that lower temperatures increase the risk of ARIs. Anticipated extreme weather events that reduce ambient temperature can be used to inform increased healthcare resource allocation for ARIs.

PMID:33862488 | DOI:10.1016/j.ijheh.2021.113748

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Nevin Manimala Statistics

Urine proteome changes in a chronic unpredictable mild stress (CUMS) mouse model of major depressive disorder

J Pharm Biomed Anal. 2021 Apr 6;199:114064. doi: 10.1016/j.jpba.2021.114064. Online ahead of print.

ABSTRACT

Major depressive disorder (MDD) is a prevalent complex psychiatric disorder, and there are no effective biomarkers for clinical diagnosis. Urine is not subjected to homeostatic control, allowing it to reflect the sensitive changes that occur in various diseases. In this study, we examined the urine proteome changes in a chronic unpredictable mild stress mouse model of MDD. Male C57BL/6 mice were subjected to chronic unpredictable mild stress for 5 weeks. The tail suspension test and sucrose consumption test were then applied to evaluate depression-like behaviors. The urine proteomes on day 0 and day 36 in the CUMS group were profiled by liquid chromatography coupled with tandem mass spectrometry (LCMS/MS). A total of 36 differential proteins were identified, 19 of which have been associated with the pathogenic mechanisms of MDD. There was an average of two differential proteins that were identified through 1,048,574 random combination statistical analyses, indicating that at least 95 % of the differential proteins were reliable. The differential proteins were mainly associated with blood coagulation, inflammatory responses and central nervous system development. Our preliminary results indicated that the urine proteome can reflect changes associated with MDD in the CUMS model, which provides potential clues for the diagnosis of MDD.

PMID:33862505 | DOI:10.1016/j.jpba.2021.114064

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Nevin Manimala Statistics

Municipal waste management: A complex network approach with an application to Italy

Waste Manag. 2021 Apr 13;126:597-607. doi: 10.1016/j.wasman.2021.03.035. Online ahead of print.

ABSTRACT

The paper contributes to the debate concerning the management of municipal solid waste by providing an analysis of two key aspects of waste management – namely, waste separation and dispatch to treatment plants. Our analysis aims at detecting the extent to which actual behavior in (close-by) municipalities is similar with respect to those two aspects. To pursue our scope, a complex network approach is followed. In particular, we conceptualize, explore and compare two networks, whose nodes are the municipalities, while weights synthesize in one network the percentage of sorted waste that is collected at a municipal level, and in the other one the distance from the waste processing plants used by each municipality. The theoretical network models are implemented through an empirical study based on a high quality dataset referred to Italian municipalities. In this regard, the detection of communities of municipalities and their geospatial contextualization are introduced as devices for a complete description of current practices of municipal waste separation and transfers in Italy.

PMID:33862511 | DOI:10.1016/j.wasman.2021.03.035

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Does participation in ethics discussions have an impact on ethics decision-making? A cross-sectional study among healthcare professionals in paediatric oncology

Eur J Oncol Nurs. 2021 Mar 27;52:101950. doi: 10.1016/j.ejon.2021.101950. Online ahead of print.

ABSTRACT

PURPOSE: The overall aim of this study was to describe perceptions of the decision-making process in relation to participation/non-participation in ethics discussions among healthcare professionals in paediatric oncology.

METHODS: Healthcare professionals, working at three paediatric units where ethics discussions where performed answered a study-specific questionnaire focusing on perceptions of involvement, influence, responsibility and understanding of ethics decision-making. Statistical analyses included descriptive statistics, non-parametric paired t-tests and correlation tests.

RESULTS: Participation in ethics discussions was related to perceptions of greater involvement and the possibility of influencing decisions, as well as formal/shared responsibility for the ethics decisions related to patient care. Medical doctors and registered nurses perception of involvement in decisions, possibility to influence and responsibility decreased when they were not present during the ethics discussion or when no ethics discussion was conducted at all. Healthcare professionals had a generally good understanding of the ethical issues and the ethics decisions. The whole group considered medical doctors to be the most important participants in the ethics discussions, followed by patients/family. Healthcare professionals wanted more teamwork and viewed ethics discussions as very helpful for teamwork when dealing with ethical issues in paediatric oncology.

CONCLUSIONS: Ethics discussions in paediatric oncology practice increases the involvement within and the understanding of the decision-making process about ethical decisions. The understanding is not always dependent on participation, indicating a great trust in team members. Based on these findings the implementation of a structure for ethics support in paediatric oncology where patients/families are integrated is recommended.

PMID:33862416 | DOI:10.1016/j.ejon.2021.101950

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Quality of life recovery after laparoscopic high uterosacral ligament suspension: a single centre observational study

Eur J Obstet Gynecol Reprod Biol. 2021 Apr 1;260:212-217. doi: 10.1016/j.ejogrb.2021.03.035. Online ahead of print.

ABSTRACT

OBJECTIVE: Laparoscopic high uterosacral ligament suspension (l-HUSLS) is a laparoscopic-transposed vaginal technique for the treatment of pelvic organ prolapse. Nowadays data regarding quality of life and sexual functions in patients who underwent l-HUSLS for pelvic organ prolapse are few and generic with most of the study investigating the anatomical outcome. For these reasons, the aim of our study is to evaluate these subjective outcomes in women undergoing this surgical procedure with the support of validated questionnaires.

STUDY DESIGN: This is a retrospective study with the primary aim of analysing the quality of life, sexual function, patient satisfaction rates and anatomical outcome among patients who underwent l-HUSLS in our institution. The SPSS Version 26.0 for Windows (Statistical package for the social studies, Chicago, IL, USA) was used for the statistical analysis.

RESULTS: A total of 60 patients underwent l-HUSLS between 2016 and 2018. All patients had a high grade of apical prolapse. No intraoperative and major postoperative complications were registered. The median follow-up was 24 months (24-48). PGI-I score was 1-2 in 55 (91.6 %) women. We observed a significant improvement of EQ-5D index and VAS scores from the baseline to the 2 years follow-up: from 0.72 (0.67-1) to 0.91 (0.79-1) and from 50 (30-90) to 70 (50-100) respectively (p = 0.000). All women showed a statistically significant amelioration of FSDS and ICIQ-SF scores. Anatomical success rate after 24 months was 83.7 %.

CONCLUSIONS: l-HUSLS appears to be a safe, feasible and effective treatment for advanced pelvic organ prolapse with high rates of patient self-reported cure.

PMID:33862432 | DOI:10.1016/j.ejogrb.2021.03.035

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Symptom distress and quality of life among Black Americans with cancer and their family caregivers

Psychooncology. 2021 Apr 2. doi: 10.1002/pon.5691. Online ahead of print.

ABSTRACT

OBJECTIVE: Black Americans are disproportionately affected by cancer and chronic diseases. Black patients with cancer and their family caregivers may concurrently experience symptoms that influence their wellbeing. This study investigates the influence of mental and physical symptom distress on quality of life (QOL) among Black Americans with cancer and their family caregivers from a dyadic perspective.

METHODS: One hundred and fifty-one dyads comprised of a Black American with breast, colorectal, lung or prostate cancer and a Black family caregiver were included in this secondary analysis of pooled baseline data from three studies. Self-reports of problems managing 13 symptoms were used to measure mental and physical symptom distress. Descriptive statistics and the actor-partner interdependence model were used to examine symptom prevalence and the influence of each person’s symptom distress on their own and each other’s QOL.

RESULTS: Fatigue, sleep problems, pain and mental distress were prevalent. Patients and caregivers reported similar levels of mental distress; however, patients reported higher physical distress. Increased patient mental distress was associated with decreased patient QOL (overall, emotional, social, functional). Increased patient physical distress was associated with decreased patient QOL (overall, physical, emotional, functional) and decreased caregiver emotional wellbeing. Increased caregiver mental distress was associated with decreased caregiver QOL (overall, emotional, social, functional) and decreased patient overall QOL. Increased caregiver physical distress was associated with decreased caregiver QOL (overall, physical, functional), decreased patient emotional wellbeing, and better patient social wellbeing.

CONCLUSIONS: Supporting symptom management in Black patient/caregiver dyads may improve their QOL.

PMID:33861891 | DOI:10.1002/pon.5691