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Nevin Manimala Statistics

Clinical index to quantify the 1-year risk for common postpartum mental disorders at the time of delivery (PMH CAREPLAN): development and internal validation

Br J Psychiatry. 2023 Jun 21:1-8. doi: 10.1192/bjp.2023.74. Online ahead of print.

ABSTRACT

BACKGROUND: Common postpartum mental health (PMH) disorders such as depression and anxiety are preventable, but determining individual-level risk is difficult.

AIMS: To create and internally validate a clinical risk index for common PMH disorders.

METHOD: Using population-based health administrative data in Ontario, Canada, comprising sociodemographic, clinical and health service variables easily collectible from hospital birth records, we developed and internally validated a predictive model for common PMH disorders and converted the final model into a risk index. We developed the model in 75% of the cohort (n = 152 362), validating it in the remaining 25% (n = 75 772).

RESULTS: The 1-year prevalence of common PMH disorders was 6.0%. Independently associated variables (forming the mnemonic PMH CAREPLAN) that made up the risk index were: (P) prenatal care provider; (M) mental health diagnosis history and medications during pregnancy; (H) psychiatric hospital admissions or emergency department visits; (C) conception type and complications; (A) apprehension of newborn by child services (newborn taken into care); (R) region of maternal origin; (E) extremes of gestational age at birth; (P) primary maternal language; (L) lactation intention; (A) maternal age; (N) number of prenatal visits. In the index (scored 0-39), 1-year common PMH disorder risk ranged from 1.5 to 40.5%. Discrimination (C-statistic) was 0.69 in development and validation samples; the 95% confidence interval of expected risk encompassed observed risk for all scores in development and validation samples, indicating adequate risk index calibration.

CONCLUSIONS: Individual-level risk of developing a common postpartum mental health disorder can be estimated with data feasibly collectable from birth records. Next steps are external validation and evaluation of various cut-off scores for their utility in guiding postpartum individuals to interventions that reduce their risk of illness.

PMID:37341030 | DOI:10.1192/bjp.2023.74

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Evaluation of the Effectiveness of the FOCUS ADHD App in Monitoring Adults with Attention-Deficit/Hyperactivity Disorder

Eur Psychiatry. 2023 Jun 21:1-24. doi: 10.1192/j.eurpsy.2023.2422. Online ahead of print.

NO ABSTRACT

PMID:37341028 | DOI:10.1192/j.eurpsy.2023.2422

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Nevin Manimala Statistics

The Safety and Efficacy of Bipolar Plasma-Kinetic Transurethral Resection of The Prostate in Patients Taking Low-Dose Aspirin

Urol J. 2023 Jun 21. doi: 10.22037/uj.v20i.7508. Online ahead of print.

ABSTRACT

PURPOSE: To explore the safety and efficacy of bipolar plasma-kinetic transurethral resection of the prostate in patients taking low-dose aspirin.

MATERIALS AND METHODS: Benign prostatic hyperplasia (BPH) patients who underwent surgical treatment from November 2018 to May 2020 were retrospectively analyzed,divided into two groups according to whether taking 100mg aspirin daily aspirin or not. The perioperative indexes, complications and sequelae also were used to evaluate safety. The efficacy was evaluated by the functional outcomes in 3,6,12 months.

RESULTS: There were no statistical differences in the baseline characteristics or perioperative indicators and complications and sequelae, except for a longer operative time(90.49 ± 14.34 vs 84.95 ± 15.49; 95%CI: 0.26-10.83; P = .040) and a shorter hospital stay time(HST) (8.52 ± 1.55 vs 9.09 ± 1 .50; 95% CI: 0.21-1.11; P = .042) in the non-aspirin group. During the 12-months follow-up period, the functional outcomes of the two groups were significantly improved except International Index of Erectile Function (IIEF-5).

CONCLUSION: Based on our research results, PKRP a safe and effective method for patients with BPH who taking 100mg aspirin daily.

PMID:37341011 | DOI:10.22037/uj.v20i.7508

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Nevin Manimala Statistics

Efficacy of recombinant Bacillus Calmette-Guérin containing dltA in in vivo three-dimensional bio-printed bladder cancer-on-a-chip and ex vivo orthotopic mouse model

Investig Clin Urol. 2023 May;64(3):296-305. doi: 10.4111/icu.20220293.

ABSTRACT

PURPOSE: We investigated the efficacy and optimal dosage of recombinant Bacillus Calmette-Guérin-dltA (rBCG-dltA) in a high-throughput 3D bio-printed bladder cancer-on-a-chip (BCOC) and orthotopic bladder cancer mouse model.

MATERIALS AND METHODS: We fabricated high-throughput BCOC with microfluidic systems, enabling efficient drug screening. The efficacy of rBCG-dltA was evaluated using BCOC by the cell viability assay, monocyte migration assay, and measuring cytokine levels. The anti-tumor effect was compared using the orthotopic bladder cancer mouse model.

RESULTS: The cell proliferation rates of T24 and 253J bladder cancer cell lines (mean±standard error) were measured at three days after treatment. In T24 cell line, there was significantly decreased T24 cells compared to control at rBCG 1 multiplicity of infection (MOI) and 10 MOI (30 MOI: 63.1±6.4, 10 MOI: 47.4±5.2, 1 MOI: 50.5±7.5, control: 100.0±14.5, p<0.05). In 253J cell line, a statistically significant decrease in 253J cell count compared to control and mock BCG 30 MOI (30 MOI: 11.2±1.3, 10 MOI: 22.5±2.3, 1 MOI: 39.4±4.7, Mock: 54.9±10.8, control: 100.0±5.6, p<0.05). The migration rates of THP-1 cells showed increased patterns after rBCG-dltA treatment in BCOC. The concentration of tumor necrosis factor-α and interleukin-6 after rBCG-dltA 30 MOI treatment was higher than control in T24 and 253J cell line.

CONCLUSIONS: In conclusion, rBCG-dltA has the potential to have better anti-tumor activity and immunomodulatory effects than BCG. Furthermore, high-throughput BCOCs have potential to reflect the bladder cancer microenvironment.

PMID:37341010 | DOI:10.4111/icu.20220293

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Cytoreductive prostatectomy may improve oncological outcomes in patients with oligometastatic prostate cancer: An updated systematic review and meta-analysis

Investig Clin Urol. 2023 May;64(3):242-254. doi: 10.4111/icu.20230058.

ABSTRACT

The oncologic outcomes of cytoreductive prostatectomy (CRP) in oligometastatic prostate cancer (OmPCa) are still controversial. Therefore, we conducted a systematic review and meta-analysis on the oncologic outcome of CRP in OmPCa. OVID-Medline, OVID-Embase, and Cochrane Library databases were searched to identify eligible studies published before January 2023. A total of 11 studies (929 patients), 1 randomized controlled trial (RCT) and 10 non-RCT studies, were included in the final analysis. RCT and non-RCT were further analyzed separately. End points were progression-free-survival (PFS), time to castration-resistant prostate cancer (CRPCa), cancer-specific-survival (CSS) and overall-survival (OS). It was analyzed using hazard ratio (HR) and 95% confidence intervals (CIs). In PFS, in RCT, HR=0.43 (CIs=0.27-0.69) was shown statistically significant, but in non-RCTs, HR=0.50 (CIs=0.20-1.25), there was no statistical difference. And, in time to CRPCa was statistically significant in the CRP group in all analyses (RCT; HR=0.44; CIs=0.29-0.67) (non-RCTs; HR=0.64; CIs=0.47-0.88). Next, CSS was not statistically different between the two groups (HR=0.63; CIs=0.37-1.05). Finally, OS showed better results in the CRP group in all analyses (RCT; HR=0.44; CIs=0.26-0.76) (non-RCTs; HR=0.59; CIs=0.37-0.93). Patients who received CRP in OmPCa showed better oncologic outcomes compared to controls. Notably, time to CRPC and OS showed significantly improved compared with control. We recommend that experienced urologists who are capable of managing complications consider CRP as a strategy to achieve good oncological outcomes in OmPCa. However, since most of the included studies are non-RCT studies, caution should be exercised in interpreting the results.

PMID:37341004 | DOI:10.4111/icu.20230058

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Chemical Analysis and in vitro Antiviral Effects of Northeast Türkiye Propolis Samples Against HSV-1

Chem Biodivers. 2023 Jun 21:e202300669. doi: 10.1002/cbdv.202300669. Online ahead of print.

ABSTRACT

Propolis is one of the mixtures with the widest biological activity among natural products used in complementary medicine. HSV-1 is a highly contagious and endemic virus. Available drugs are insufficient for recurrent HSV-1 infections. Therefore, new approaches to treat HSV-1 infections are still being developed. In this study, it was aimed to investigate the inhibition effect of ethanolic Anatolian propolis extracts obtained from the Eastern Black Sea Region (Pazar, Ardahan, and Uzungöl) on HSV-1. In addition to the total phenolic (TPC) and the total flavonoid content (TFC), the phenolic profiles of the extracts were analyzed by HPLC-UV. The antiviral activity of the extracts were tested by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), quantitative Real Time Polymerase Chain Reaction (qRT-PCR), and plaque reduction tests, and the results were evaluated statistically. It was determined that the total amount of phenolic substances varied between 44.12 and 166.91 mg GAE/g, and the total flavonoid content of the samples varied between 12.50 and 41.58 (mgQUE/g). It was shown that all propolis samples used in the current study were effective against HSV-1, but the higher phenolic compounds contained in the samples showed the higher activity. The results show that ethanolic propolis extracts are promising candidates for HSV-1 treatment.

PMID:37340993 | DOI:10.1002/cbdv.202300669

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Expression analysis of MMP14: Key enzyme action in modulating visceral adipose tissue plasticity in patients with obesity

Clin Obes. 2023 Jun 21:e12607. doi: 10.1111/cob.12607. Online ahead of print.

ABSTRACT

Compromised adipose tissue plasticity is a hallmark finding of obesity orchestrated by the intricate interplay between various extracellular matrix components. Collagen6 (COL6) is well characterized in obese visceral adipose tissue (VAT), not much is known about MMP14 which is hypothesized to be the key player in matrix reorganization. Subjects with obesity (BMI ≥40; n = 50) aged 18-60 years undergoing bariatric surgery and their age-matched controls (BMI < 25; n = 30) were included. MMP14, Col6A3 and Tissue inhibitor of metalloproteinase 2 (TIMP2) mRNA expression was assessed in VAT and their serum levels along with endotrophin were estimated in both groups preoperatively and post-operatively in the obese group. The results were analysed statistically and correlated with anthropometric and glycaemic parameters, namely fasting glucose and insulin, HbA1c, HOMA-IR, HOMA-β and QUICKI. Circulating levels as well as mRNA expression profiling revealed significant differences between the individuals with and without obesity (p < .05), more so in individuals with diabetes and obesity (p < .05). Follow-up serum analysis revealed significantly raised MMP14 (p < .001), with decreased Col6A3, endotrophin and TIMP2 levels (p < .01, p < .001 and p < .01, respectively). A rise in serum MMP14 protein, simultaneous with post-surgical weight loss and decreased serum levels of associated extracellular matrix (ECM) remodellers, suggests its crucial role in modulating obesity-associated ECM fibrosis and pliability of VAT.

PMID:37340990 | DOI:10.1111/cob.12607

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Nevin Manimala Statistics

Urine transfer devices may impact urinary particle results: a pre-analytical study

Clin Chem Lab Med. 2023 Jun 22. doi: 10.1515/cclm-2023-0327. Online ahead of print.

ABSTRACT

OBJECTIVES: Well-standardized procedures in the pre-analytical phase of urine diagnostics is of utmost importance to obtain reliable results. We investigated the effect of different urine collection methods and the associated urine transfer tubes on urine test strip and particle results.

METHODS: In total, 146 selected urine samples were subdivided into three different collection containers and subsequently transferred into its accompanying transfer tube (BD, Greiner, Sarstedt vacuum and Sarstedt aspiration). As reference, the original urine sample was directly measured on the analyser. Both chemical test strip analysis (Sysmex UC-3500) and fluorescence flow cytometry particle analysis (Sysmex UF-5000) were performed on all samples.

RESULTS: No statistically significant differences in test strip results were found between the studied transfer methods. On the contrary, transfer of urine samples to the secondary tubes affected their particle counts. Clinically significant reductions in counts of renal tubular epithelial cells and hyaline casts were observed using the BD and Greiner transfer tubes and in counts of pathological casts using the BD, Greiner and Sarstedt vacuum tubes.

CONCLUSIONS: The results of this study indicate that the use of urine transfer tubes may impact counts of fragile urine particles. Clinical laboratories need to be aware about the variation that urine collection methods can induce on urine particle counts.

PMID:37340894 | DOI:10.1515/cclm-2023-0327

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Nevin Manimala Statistics

Permutation-based multiple testing corrections for P $$ P $$ -values and confidence intervals for cluster randomized trials

Stat Med. 2023 Jun 21. doi: 10.1002/sim.9831. Online ahead of print.

ABSTRACT

In this article, we derive and compare methods to derive P-values and sets of confidence intervals with strong control of the family-wise error rates and coverage for estimates of treatment effects in cluster randomized trials with multiple outcomes. There are few methods for P-value corrections and deriving confidence intervals, limiting their application in this setting. We discuss the methods of Bonferroni, Holm, and Romano and Wolf and adapt them to cluster randomized trial inference using permutation-based methods with different test statistics. We develop a novel search procedure for confidence set limits using permutation tests to produce a set of confidence intervals under each method of correction. We conduct a simulation-based study to compare family-wise error rates, coverage of confidence sets, and the efficiency of each procedure in comparison to no correction using both model-based standard errors and permutation tests. We show that the Romano-Wolf type procedure has nominal error rates and coverage under non-independent correlation structures and is more efficient than the other methods in a simulation-based study. We also compare results from the analysis of a real-world trial.

PMID:37340888 | DOI:10.1002/sim.9831

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Nevin Manimala Statistics

Adaptations in athletic performance and muscle architecture are not meaningfully conditioned by training free-weight versus machine-based exercises: Challenging a traditional assumption using the velocity-based method

Scand J Med Sci Sports. 2023 Jun 21. doi: 10.1111/sms.14433. Online ahead of print.

ABSTRACT

BACKGROUND: Although the superior effectiveness of free-weight over machine-based training has been a traditionally widespread assumption, longitudinal studies comparing these training modalities were scarce and heterogeneous.

OBJECTIVE: This research used the velocity-based method to compare the effects of free-weight and machine-based resistance training on athletic performance and muscle architecture.

METHODS: Thirty-four resistance-trained men participated in an 8-week resistance training program allocated into free-weight (n = 17) or machine-based (n = 17) groups. Training variables (intensity, intraset fatigue, and recovery) were identical for both groups, so they only differed in the use of a barbell or specific machines to execute the full squat, bench press, prone bench pull, and shoulder press exercises. The velocity-based method was implemented to accurately adjust the planned intensity. Analysis of covariance and effect size (ES) statistics were used to compare both training modalities on a comprehensive set of athletic and muscle architecture parameters.

RESULTS: No between-group differences were found for any athletic (p ≥ 0.146) and muscle architecture (p ≥ 0.184) variable. Both training modalities significantly and similarly improved vertical jump (Free-weight: ES ≥ 0.45, p ≤ 0.001; Machine-based: ES ≥ 0.41, p ≤ 0.001) and lower limb anaerobic capacity (Free-weight: ES ≥ 0.39, p ≤ 0.007; Machine-based: ES ≥ 0.31, p ≤ 0.003). Additionally, the machine-based group meaningfully enhanced upper limb anaerobic power (ES = 0.41, p = 0.021), whereas the free-weight group significantly improved the change of direction (ES = -0.54, p = 0.003) and 2/6 balance conditions analyzed (p ≤ 0.012). Changes in sprint capacity (ES ≥ -0.13, p ≥ 0.274), fascicle length, and pennation angle (ES ≤ 0.19, p ≥ 0.129) were not significant for either training modality.

CONCLUSION: Adaptations in athletic performance and muscle architecture would not be meaningfully influenced by the resistance modality trained.

PMID:37340878 | DOI:10.1111/sms.14433