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Nevin Manimala Statistics

Suicide among post-Arabellion refugees in Germany

BJPsych Open. 2024 Oct 25;10(6):e188. doi: 10.1192/bjo.2024.755.

ABSTRACT

BACKGROUND: Although immigrants are considered to be vulnerable to mental illness, there is limited knowledge regarding their suicide mortality.

AIMS: To investigate standardised mortality ratios (SMR) for suicide among the largest immigrant populations in Germany before and after the refugee movement of 2015.

METHOD: Data on immigrants and the general population in Germany between 2000 and 2020 were provided by the scientific section of the Federal Statistical Office. SMR with 95% confidence intervals were calculated by indirect standardisation for gender, age and calendar year for the pre-2015 and post-2015 time interval, first for all the immigrant populations studied and second for the Syrian, Afghan and Iraqi populations separately.

RESULTS: Immigrants from the countries studied showed a lower suicide risk compared with the German reference population (SMR = 0.38, 95% CI = 0.35-0.41). No differences in SMR were found between pre- and post-2015 time intervals, in either the aggregate data for all populations or the data for Syrian, Afghan and Iraqi populations. Post-2015, Afghan immigrants (SMR = 0.68, 95% CI = 0.54-0.83) showed a higher SMR than Syrians (SMR = 0.30, 95% CI = 0.25-0.36) or Iraqis (SMR = 0.37, 95% CI = 0.26-0.48).

CONCLUSIONS: Despite the many and varied stresses associated with flight, comparison of the pre- and post-2015 time intervals showed that the suicide risk of the populations studied did not change and was considerably lower than that of the German reference population. We attribute this to lower suicide rates in the countries of origin but also to flight-related selection processes that favour more resilient individuals.

PMID:39450528 | DOI:10.1192/bjo.2024.755

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Nevin Manimala Statistics

Increasing trends in hepatitis E hospitalisations in Spain, 1997 to 2019

Euro Surveill. 2024 Oct;29(43). doi: 10.2807/1560-7917.ES.2024.29.43.2400118.

ABSTRACT

BackgroundHepatitis E, a viral hepatitis caused mainly by the ingestion of raw or undercooked food, is not a notifiable disease in Spain.AimTo analyse the temporal trends, epidemiological characteristics and factors associated with severe disease from hepatitis E hospitalisations in Spain from 1997 to 2019.MethodsHospitalisation records were obtained from the Spanish National Hospital Discharge Database. Temporal trends and seasonality were analysed by Poisson regression in years 1997-2015 and 2016-19, given changes in hospital discharge databases. Multivariate logistic regression was used to identify factors associated with severe disease.ResultsHepatitis E hospitalisation incidence increased from 0.22 cases per 1,000,000 inhabitants in 1997 to a maximum of 2.95 in 2018. Seasonality was observed during 2016-19 period, with more cases in the second and third quarters of the year. The incidence was higher in men vs women, and in the population aged over 40 years. Factors independently associated with death were age ≥ 50 years (adjusted odds ratio (aOR): 2.43), chronic liver disease (aOR: 4.29), HIV infection (aOR: 3.00) and hepatitis B/C (aOR: 2.11).ConclusionsHepatitis E hospitalisations have increased in Spain in recent years, being more severe in cases with older age, chronic hepatic diseases and HIV infection. A greater incidence in men over 40 years and a possible seasonality were observed. Further studies are needed to assess the seasonality, geographical distribution and impact of the disease to guide public health actions for prevention and control.

PMID:39450516 | DOI:10.2807/1560-7917.ES.2024.29.43.2400118

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Nevin Manimala Statistics

SGLT2i and GLP1RA effects in patients followed in a hospital diabetology consultation

Expert Rev Clin Pharmacol. 2024 Oct 25. doi: 10.1080/17512433.2024.2421872. Online ahead of print.

ABSTRACT

BACKGROUND: We aimed to investigate the effects of sodium-glucose cotransporter 2 inhibitors (SGLT2i) and glucagon-like peptide-1 receptor agonists (GLP1RA) in patients with type 2 diabetes mellitus (T2DM) in clinical practice.

RESEARCH DESIGN AND METHODS: A total of 340 patients were included. Data on age, gender, antidiabetic medications, and bioanalytical parameters were collected at baseline and one year later. Were analyzed estimated glomerular filtration rate (eGFR), blood sodium and potassium levels, blood pressure, weight, cardiovascular risk, and glycated hemoglobin (HbA1c).

RESULTS: Patients treated with SGLT2i exhibited a significant improvement in eGFR at the endpoint compared to baseline (p = 0.006). Both treatment groups experienced reductions in systolic blood pressure at the endpoint; especially patients treated with SGLT2i (p = 0.0002). GLP1RA treatment resulted in a statistically significant weight reduction from baseline to endpoint (p < 0.0001), with a higher percentage of patients achieving ≥ 5% weight loss compared to the non-GLP1RA group (33.6% vs. 19.8%). Both SGLT2i and GLP1RA treatments significantly reduced cardiovascular risk scores (p = 0.004 and p = 0.002, respectively). Additionally, both treatments were associated with a significant reduction in HbA1c levels at the endpoint (p = 0.010 and p = 0.002, respectively).

CONCLUSIONS: Our findings suggest that SGLT2i and GLP1RA offer beneficial effects in patients with T2DM.

PMID:39450504 | DOI:10.1080/17512433.2024.2421872

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Nevin Manimala Statistics

The effects of photobiomodulation and/or azithromycin treatment on bone resorption biomarkers in gingival crevicular fluid from patients with stage III-IV grade C periodontitis

Quintessence Int. 2024 Oct 25;0(0):0. doi: 10.3290/j.qi.b5798358. Online ahead of print.

ABSTRACT

OBJECTIVES: This study aims to investigate the impact of photobiomodulation (PBM) and/or azithromycin (AZM) therapy in combination with full-mouth subgingival instrumentation (FSI) on receptor activator of nuclear factor κB ligand (RANKL) and osteoprotegerin (OPG) levels and RANKL/OPG ratios in gingival crevicular fluid (GCF) on patients with stage III-IV grade C periodontitis.

MATERIALS AND METHODS: The study was conducted on 77 stage III-IV grade C periodontitis patients and 20 periodontally healthy controls. Patients with stage III-IV grade C periodontitis were categorized into four treatment groups: 1) only FSI (FSI) group; 2) FSI&#43;AZM (AZM) group; 3)FSI&#43;PBM (PBM) group and 4) FSI&#43;PBM&#43;AZM (AZM&#43;PBM) group. Clinical periodontalparameters and RANKL and OPG levels and RANKL/OPG ratios in GCF were measured at thebaseline and month 3rd of the therapy.

RESULTS: Compared with the periodontally healthy controls,all the baseline clinical parameters were higher in the Stage III-IV grade C periodontitis groups (P< 0.05); however, there were no statistically significant differences between the Stage III-IV gradeC periodontitis groups (P>0.05). In month 3rd, the lowest values in all clinical parameters weregenerally observed in the antibiotics groups whereas the highest values were observed in the FSIgroup. Furthermore, the highest RANKL and OPG values in antibiotic groups and the highestRANKL/OPG ratio in PBM group were observed in the third months. RANKL/OPG ratios did notchange in the FSI and antibiotics groups after the treatment, but it increased significantly in thePBM group.

CONCLUSION: While PBM treatment combined with FSI increases the RANKL levels,AZM increases OPG levels. Also, PBM&#43;AZM treatment shows additional clinical andimmunological beneficial efficacy.

PMID:39450500 | DOI:10.3290/j.qi.b5798358

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Nevin Manimala Statistics

NNT and NNH: statistics and stochastics in the evaluation of added therapeutic value

G Ital Cardiol (Rome). 2024 Nov;25(11):811-818. doi: 10.1714/4352.43391.

ABSTRACT

Any pharmacological, invasive, surgical health intervention should have an added therapeutic value as well as the requirements of quality, safety, efficacy, to be considered as a medical device based on scientific evidence and of clinical utility for the patient. The intervention should be shared between the doctor and the patient who should have rigorous but simple tools to decide on the best therapy to undertake. Assessment of relative risk reduction is commonly used in the scientific literature to quantify both statistical and clinical significance. The reduction of the relative risk is independent of the baseline risk and is useful for comparing the results of trials conducted on populations at different risk levels. A biased reading of relative risk reduction can be used to emphasize the magnitude of the benefit for market innovation. The absolute risk reduction, on the other hand, is proportional to the magnitude of the baseline risk and is a more useful parameter for physicians and patients to understand the extent of benefit and harm, especially if the parameter is expressed in terms of the number needed to treat (NNT) or to harm (NNH). The mode of scientific communication is important for doctors’ choices and patients’ trust. Even true data can be fake in communication and perception by resorting to verbose paraphrases. Presenting the results of clinical trials in stochastic as well as statistical terms is useful for doctors and patients to verify whether it is worth practicing a certain treatment whose success sometimes has the probability of winning the lottery, also considering side effects and adverse events. One of the most important challenges in precision medicine will be understanding the relationship between probability and randomness.

PMID:39450461 | DOI:10.1714/4352.43391

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Polygenic risk score: a new approach to cardiovascular prevention?

G Ital Cardiol (Rome). 2024 Nov;25(11):775-782. doi: 10.1714/4352.43387.

ABSTRACT

Long-lasting epidemiological studies showed that prevention of coronary artery disease (CAD) is highly feasible with the management of several conditions called “risk factors”, such as hypertension, cholesterol, smoking, etc. Nevertheless, risk stratification for primary prevention using a statistical combination of risk factors is suboptimal, as conventional risk factors are age-dependent, so that their treatment would be too late to be effective. Genetic risk stratification, built on the genetic variants linked to CAD, has the advantage of being embedded in DNA and then it is independent of age. The rapid advancement of DNA analysis techniques has made it possible to identify many variants and to produce easily a statistical combination of them to obtain a polygenic risk score (PRS). Prospective clinical trials based on risk stratification for CAD using the PRS have shown that statin therapy is associated with a higher reduction in cardiac events in the high genetic risk group compared with the low genetic risk group. A wide clinical use of the PRS, however, is presently not possible, basically due to the lack of a standard in production and validation of the PRS, but genetic risk stratification has the potential to revolutionize primary prevention.

PMID:39450457 | DOI:10.1714/4352.43387

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Nevin Manimala Statistics

Effects of Adding Tricalcium Silicate Nanoparticles to the Universal G2 Bond Adhesive as Self-Etch Mode on the Shear Bond Strength to the Orthodontic Bracket

Clin Exp Dent Res. 2024 Dec;10(6):e948. doi: 10.1002/cre2.948.

ABSTRACT

OBJECTIVE: This study investigated the effects of adding tricalcium silicate nanoparticles (TCSNp) to the universal G2 bond adhesive (G2BU) in self-etch (SE) mode on shear bond strength (SBS) to orthodontic brackets, cytotoxicity, and degree of conversion (DC).

MATERIAL AND METHODS: A total of 176 human teeth were divided into four groups based on TCSNp concentration in G2BU adhesive: 0% (control), 1%, 3%, and 5%. The G2BU adhesive consists of a hydrophilic primer (P) and a hydrophobic bonding agent (2B). TCSNp were added to the 2B component by mixing 0.1, 0.3, and 0.5 g of TCSNp with 9.9, 9.7, and 9.5 g of 2B, respectively. SBS was assessed after 24 h of water storage and 5000 thermocycles using a universal testing machine. Cytotoxicity was evaluated using the MTT assay on rat embryo fibroblast cells, and DC was measured using fourier-transform infrared spectroscopy. Statistical analysis included one-way ANOVA and Tukey’s post-hoc test, with significance set at p < 0.05.

RESULTS: After 24 h, mean SBS values were 15.58 MPa (control), 13.66 MPa (1% TCSNp), 15.99 MPa (3% TCSNp), and 12.04 MPa (5% TCSNp). After 5000 thermocycles, SBS values decreased to 12.91 MPa (control), 12.42 MPa (1% TCSNp), 11.11 MPa (3% TCSNp), and 10.21 MPa (5% TCSNp). ANOVA showed significant differences between groups (p < 0.05), except between the control and 3% TCSNp groups. Cell viability increased with higher TCSNp concentrations, with significant differences at 72 h between control and 5% TCSNp groups (p = 0.014). Mean DC values were 51.66% (control), 49.33% (1% TCSNp), 49.66% (3% TCSNp), and 48% (5% TCSNp). ANOVA indicated no significant differences between groups.

CONCLUSIONS: Adding TCSNp to G2BU in SE mode maintains clinically acceptable SBS levels and enhances cytocompatibility. Higher TCSNp concentrations may reduce SBS and DC slightly. Further studies are needed to evaluate long-term effects.

PMID:39450452 | DOI:10.1002/cre2.948

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Arabidopsis METHYLENETETRAHYDROFOLATE REDUCTASE 2 functions independently of PENETRATION 2 during primary immunity against rice blast

J Exp Bot. 2024 Oct 25:erae435. doi: 10.1093/jxb/erae435. Online ahead of print.

ABSTRACT

Nonhost resistance (NHR) is the most durable and robust form of innate immunity, with a surge of interest in crop improvement. Of the NHR genes identified against rice blast, a devastating disease caused by Magnaporthe oryzae, Arabidopsis PEN2 is indispensable for pre-penetration resistance against M. oryzae, while a consortium of genes orchestrates post-penetration resistance via lesser-known mechanisms. We identified M. oryzae-susceptible mosA (mthfr2 pen2-3) from a randomly mutagenized Arabidopsis pen2-3 population using forward genetics. Analysis of T-DNA inserted mthfr2 lines and pen2-3 complemented mosA lines enunciated that MTHFR2-dependent resistance to M. oryzae is independent of PEN2. MTHFR2-defective plants exhibited higher ROS accumulation and expression of SA-dependent defense markers. MTHFR2-ligand docking revealed that A55V nonsynonymous substitution in mosA altered ligand binding efficiency. This further affected the metabolomic profile of mosA, effectively allowing in vitro germination and development of M. oryzae conidia. Moreover, the loss of function mutation in mthfr2 (involved in 1C metabolic pathway) potentiated mosA immunity against Pst DC3000. In conclusion, our findings assert MTHFR2 as a positive modulator of NHR against M. oryzae. This work documents another layer of conserved yet divergent metabolomic defense in Arabidopsis regulated by folate-mediated 1C metabolism that has the potential to revolutionize crop improvement.

PMID:39450434 | DOI:10.1093/jxb/erae435

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Evaluation and redesign of an internal medicine pharmacy practice model at a tertiary care hospital

Am J Health Syst Pharm. 2024 Oct 25:zxae302. doi: 10.1093/ajhp/zxae302. Online ahead of print.

ABSTRACT

DISCLAIMER: In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

PURPOSE: Clinical pharmacists are embedded into the care for patients admitted to internal medicine floors at Cleveland Clinic. The existing practice model utilized by the internal medicine pharmacy team had an uneven distribution of clinical activities among the various pharmacist roles. A study was completed to evaluate a potential adjustment to the pharmacy practice model. The objective of this study was to assess the type and quantity of clinical activities performed by each pharmacist role. These data were then utilized to evaluate the need for redistribution of care activities among the pharmacist roles and to determine the need for additional pharmacist full-time equivalents.

METHODS: From January to February 2023, data pertaining to the amount and type of clinical activities completed by the 9 internal medicine pharmacist roles was either manually collected or extracted from the electronic medical record. The data were then utilized to calculate a responsibility score for each role. Descriptive statistics were also calculated to assess the results.

RESULTS: Each pharmacist role cared for an average of 34.4 patients (minimum, 24.4; maximum, 57.7) during the study period. The average responsibility score for each pharmacist role was 309.8 (minimum, 237.5; maximum, 447.8).

CONCLUSION: On the basis of the data collected during the 4-week study period, a new pharmacy practice model was developed that incorporated 2 additional full-time equivalents. This model balanced patient care responsibilities among the pharmacist roles and moved the practice model from a location-based to a team-based coverage model.

PMID:39450432 | DOI:10.1093/ajhp/zxae302

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Future directions in myelodysplastic syndromes/neoplasms and acute myeloid leukaemia classification: from blast counts to biology

Histopathology. 2024 Oct 25. doi: 10.1111/his.15353. Online ahead of print.

ABSTRACT

Myelodysplastic syndromes/neoplasms (MDS) and acute myeloid leukaemia (AML) are neoplastic haematopoietic cell proliferations that are diagnosed and classified based on a combination of morphological, clinical and genetic features. Specifically, the percentage of myeloblasts in the blood and bone marrow is a key feature that has historically separated MDS from AML and, together with several other morphological parameters, defines distinct disease entities within MDS. Both MDS and AML have recurrent genetic abnormalities that are increasingly influencing their definitions and subclassification. For example, in 2022, two new MDS entities were recognised based on the presence of SF3B1 mutation or bi-allelic TP53 abnormalities. Genomic information is more objective and reproducible than morphological analyses, which are subject to interobserver variability and arbitrary numeric cut-offs. Nevertheless, the integration of genomic data with traditional morphological features in myeloid neoplasm classification has proved challenging by virtue of its sheer complexity; gene expression and methylation profiling also can provide information regarding disease pathogenesis, adding to the complexity. New machine-learning technologies have the potential to effectively integrate multiple diagnostic modalities and improve on historical classification systems. Going forward, the application of machine learning and advanced statistical methods to large patient cohorts can refine future classifications by advancing unbiased and robust previously unrecognised disease subgroups. Future classifications will probably incorporate these newer technologies and higher-level analyses that emphasise genomic disease entities over traditional morphologically defined entities, thus promoting more accurate diagnosis and patient risk stratification.

PMID:39450427 | DOI:10.1111/his.15353