Category: Statistics

RMD Open. 2024 Apr 10;10(2):e003666. doi: 10.1136/rmdopen-2023-003666.

ABSTRACT

OBJECTIVE: Primary Sjögren’s syndrome (pSS) is the second most common chronic autoimmune connective tissue disease. Autoantibodies, immunoglobulin (IgG) anti-SSA/Ro, in serum is a key diagnostic feature of pSS. Since pSS is a disease of the salivary gland, we investigated anti-SSA/Ro52 in saliva.

METHODS: Using a novel electrochemical detection platform, Electric Field-Induced Release and Measurement, we measured IgG/M/A, IgG, IgA, IgA isotypes (IgA1 and IgA2) and IgA1 subclasses (polymeric and monomeric IgA1) to anti-SSA/Ro52 in saliva supernatant of 34 pSS, 35 dry eyes and dry mouth (patients with Sicca) and 41 health controls.

RESULTS: Saliva IgG/M/A, IgG, IgA, IgA isotypes and IgA1 subclasses to anti-SSA/Ro52 differed significantly between pSS, non-pSS Sicca and healthy subjects. Elevated monomeric IgA1 was observed in patients with non-pSS Sicca while elevated polymeric IgA1 (pIgA1) was observed in patients with pSS. Salivary polymeric but not monomeric IgA1 (mIgA1) isoform correlated with focus score (r2=0.467, p=0.001) CONCLUSIONS: Salivary anti-Ro52 polymeric IgA1 isoform is associated with glandular inflammation in pSS, while salivary monomeric IgA1 is associated with Sicca. Whether IgA1 isotope switching plays a role in the progression of the Sicca to pSS warrants further investigation.

PMID:38599651 | DOI:10.1136/rmdopen-2023-003666

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2024 Apr 8;59:335-342. doi: 10.3760/cma.j.cn115330-20231114-00207. Online ahead of print.

ABSTRACT

Objective: To explore the effectiveness and safety of programmed death 1(PD-1) inhibitory combined with chemotherapy as a neoadjuvant therapy for locally advanced resectable oral squamous cell carcinoma. Methods: This study was a randomized controlled phase Ⅱ trial. Patients recruited from Tianjin Medical University Cancer Institute and Hospital from July 2021 to February 2023 were randomly divided into two groups in a 1∶1 ratio: the experimental group (Toripalimab combined with albumin paclitaxel and cisplatin) and the control group (albumin paclitaxel and cisplatin); patients in both groups underwent three cycles of neoadjuvant therapy. After completion of neoadjuvant therapy, patients were evaluated and subsequent surgical treatment was performed. According to the completion of treatment, the analysis was conducted on both the full analysis set and the protocol set. The effectiveness and safety of treatments were evaluated. SPSS 20.0 software was used for statistical analysis. Results: A total of 41 cases with oral cancer were enrolled, including 26 males and 15 females, aged between 34 and 74 years old. There were 23 cases in the experimental group and 18 cases in the control group. A total of 23 cases completed neoadjuvant therapy and surgery according to the protocol. Experimental group and control group showed respectively the complete response rates of 1/19 and 0/17, the partial response rates of 13/19 and 8/17, the stage-down rates of 4/19 and 3/17, the pathologic complete response rate of 8/14 and 2/9, with no statistically significant differences in individual rates between two groups (P>0.05). The major pathological response rate of 13/14 in experimental group was higher than that of 2/9 in control group (P<0.05). The incidence of grade 3-4 adverse reactions related to treatment was low in both groups (4/23 vs. 3/18, χ²=0.13, P=0.72), and the most common serious adverse reactions in the experimental group were granulocyte deficiency and electrolyte disorder. There were no adverse reactions that affected subsequent surgical treatment or caused death, and the safety and tolerability were good. The median follow-up time was 15 months, and the one-year disease-free survival rate of the experimental group was higher than that of control group (92.86% vs. 77.78%, χ²=0.62, P=0.42), with a relative decrease of 87% in the risk of disease progression or death (P=0.029). For patients with programmed death-ligand 1(PD-L1) protein expression combined positive score≥20, the experimental group showed higher major pathological response rate than control group (5/5 vs. 0/4, P=0.03). Conclusion: The neoadjuvant therapy of immunotherapy combined with chemotherapy can improve the pathological remission of oral squamous cell carcinoma and the long-term survival benefits and the prognosis of patients.

PMID:38599641 | DOI:10.3760/cma.j.cn115330-20231114-00207

J Neurol Surg A Cent Eur Neurosurg. 2024 Apr 10. doi: 10.1055/s-0043-1771267. Online ahead of print.

ABSTRACT

BACKGROUND: Quality of life (QoL) may be affected due to various reasons such as low back or leg pains with accompanying neurologic problems. Lumbar disk surgery is one of the most common performed surgeries to relieve those symptoms. Various anesthetic techniques can be used safely to perform lumbar disk surgeries. Properties that make an anesthetic technique good are mainly the quick onset and returning of the effects. This large retrospective study with patients who have undergone lumbar disk surgery under spinal anesthesia aims to evaluate the perioperative and postoperative parameters of the spinal anesthesia and review the literature.

METHODS: Cases operated under spinal anesthesia between January 2017 and December 2020 were investigated, and 617 patients who underwent simple lumbar disk surgery were included in the study. Demographic characteristics and American Society of Anesthesiologists (ASA) physical status of the patients were recorded. Visual analog scale (VAS) and QoLscores were obtained before and after the operation.

RESULTS: There were 282 (45.7%) male and 335 (54.3%) female patients with a mean age of 39.48 ± 16.71 years (range: 18-58 years) at symptom onset. The mean operating time was 46.3 minutes (range: 22-68 minutes). Average blood loss was 85 mL (range: 55-125 mL). All the patients were mobilized 6 to 12 hours after surgery. In our patient group, there were both high- and normal-risk groups in terms of the ASA physical status. During the clinical follow-up, a statistically significant improvement was found for the VAS and QoL scores (p < 0.05).

CONCLUSIONS: In this large retrospective study, our results have confirmed that spinal anesthesia is at least comparable to general anesthesia and even superior to it in some aspects.

PMID:38599624 | DOI:10.1055/s-0043-1771267

Facial Plast Surg. 2024 Apr 10. doi: 10.1055/a-2302-9456. Online ahead of print.

ABSTRACT

The apparent lack of quadrangular cartilage in Black African noses is commonly observed both from a radiological and clinical point of view. To the best of our knowledge only a few research papers has been conducted on the facial proportions and structural anatomy of black people of Southern and Eastern Africa. The aim of this retrospective comparative study is a radiological assessment of the total amount of septal quadrangular cartilage by measuring its area in sagittal CT views, in two selected Black South African (SA) and Caucasian (CA) samples and the comparison with the literature in our hands. Statistical analysis was conducted, Categorical variables are showed as frequencies and percentages, while continuous variables as means and standard deviations (SD). Normal distribution of variables was verified using the Shapiro-Wilk test or by means of skewness and kurtosis values. Differences among unpaired groups were evaluated using the independent Student’s t test for normally distributed data (complemented by the Cohen’s d to show the effect size with the following cut-off: d=0.2, “small” effect size; d=0.5, “medium” effect size; d=0.8, “large” effect size) and Mann-Whitney U test in case of no normal distribution. Statistical significance was defined as p < 0.05 setting the α-error probability at 5%. This study shows that on average there is a 30% more cartilage available in caucasian compared to Black African noses and confirms the apparent lack of quadrangular cartilage and in Black African noses which is commonly observed in surgery. The need for an adequate amount of autologous septal cartilage makes cartilage availability a major concern before surgery and being able to pre-operative accurately measure the amount of septal cartilage that is available to be harvested for other grafts in the surgery is essential.

PMID:38599617 | DOI:10.1055/a-2302-9456

J Knee Surg. 2024 Apr 10. doi: 10.1055/s-0044-1786007. Online ahead of print.

ABSTRACT

This study aimed to test and compare the biomechanical properties of three tibial fixation methods of anterior cruciate ligament (ACL) tendon grafts under cyclic load and load-to-failure testing in the bovine proximal tibiae, comprising (1) staple fixation alone, (2) interference screw fixation alone, and (3) interference screw fixation with a supplementary staple. Twenty-four bovine tibiae used in the study were divided into three groups (eight proximal tibiae in each group) based on tibial fixation methods of ACL tendon grafts: group A (a spiked ligament staple alone), group B (a cannulated interference screw alone), and group C (a cannulated interference screw with a supplementary staple). Each graft fixation was exposed to cyclic loading conditions. Significant differences were determined in failure load among the three groups (p = 0.008). The mean failure load was significantly higher in group B (717.04 ± 218.51 N) than in group A (308.03 ± 17.22 N) (p = 0.006). No significant differences were observed among the groups regarding axial stiffness (p = 0.442). Cyclic displacement differed significantly among the three groups (p = 0.005). In pairwise comparisons, the mean cyclic displacement was significantly higher in group A (8.22 ± 3.24 mm) compared with group C (1.49 ± 0.41 mm) (p = 0.005). Failure displacement varied considerably among the groups (p = 0.037). Although group B (15.53 ± 6.43 mm) exhibited a greater mean failure displacement than both group A (4.9 ± 0.75 mm) and group C (8.84 ± 4.65 mm), these differences did not reach statistical significance (p = 0.602 and p = 0.329, respectively). Interference screw fixation alone and supplementary staple fixation have biomechanically similar characteristics in terms of initial strength and stiffness of tibial ACL soft tissue graft fixation. Regardless of staple use, an interference screw with the same diameter as the tibial tunnel can ensure sufficient tensile strength in tibial ACL graft fixation.

PMID:38599605 | DOI:10.1055/s-0044-1786007

Cancer Rep (Hoboken). 2024 Apr;7(4):e1978. doi: 10.1002/cnr2.1978.

ABSTRACT

BACKGROUND AND AIMS: Oncogenesis and tumor development have been related to oxidative stress (OS). The potential diagnostic utility of OS genes in hepatocellular carcinoma (HCC), however, remains uncertain. As a result, this work aimed to create a novel OS related-genes signature that could be used to predict the survival of HCC patients and to screen OS related-genes drugs that might be used for HCC treatment.

METHODS: We used The Cancer Genome Atlas (TCGA) database and the Gene Expression Omnibus (GEO) database to acquire mRNA expression profiles and clinical data for this research and the GeneCards database to obtain OS related-genes. Following that, biological functions from Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) were performed on differentially expressed OS-related genes (DEOSGs). Subsequently, the prognostic risk signature was constructed based on DEOSGs from the TCGA data that were screened by using univariate cox analysis, and the Least Absolute Shrinkage and Selection Operator (LASSO) regression, and multivariate cox analysis. At the same time, we developed a prognostic nomogram of HCC patients based on risk signature and clinical-pathological characteristics. The GEO data was used for validation. We used the receiver operating characteristic (ROC) curve, calibration curves, and Kaplan-Meier (KM) survival curves to examine the prediction value of the risk signature and nomogram. Finally, we screened the differentially expressed OS genes related drugs.

RESULTS: We were able to recognize 9 OS genes linked to HCC prognosis. In addition, the KM curve revealed a statistically significant difference in overall survival (OS) between the high-risk and low-risk groups. The area under the curve (AUC) shows the independent prognostic value of the risk signature model. Meanwhile, the ROC curves and calibration curves show the strong prognostic power of the nomogram. The top three drugs with negative ratings were ZM-336372, lestaurtinib, and flunisolide, all of which inversely regulate different OS gene expressions.

CONCLUSION: Our findings indicate that OS related-genes have a favorable prognostic value for HCC, which sheds new light on the relationship between oxidative stress and HCC, and suggests potential therapeutic strategies for HCC patients.

PMID:38599581 | DOI:10.1002/cnr2.1978

Water Environ Res. 2024 Apr;96(4):e11015. doi: 10.1002/wer.11015.

ABSTRACT

The recent SARS-CoV-2 outbreak yielded substantial data regarding virus fate and prevalence at water reclamation facilities (WRFs), identifying influential factors as natural decay, adsorption, light, pH, salinity, and antagonistic microorganisms. However, no studies have quantified the impact of these factors in full scale WRFs. Utilizing a mass balance approach, we assessed the impact of natural decay and other fate mechanisms on genetic marker removal during water reclamation, through the use of sludge and wastewater genetic marker loading estimates. Results indicated negligible removal of genetic markers during P/PT (primary effluent (PE) p value: 0.267; preliminary and primary treatment (P/PT) accumulation p value: 0.904; and thickened primary sludge (TPS) p value: 0.076) indicating no contribution of natural decay and other fate mechanisms toward removal in P/PT. Comparably, adsorption and decomposition was found to be the dominant pathway for genetic marker removal (thickened waste activated sludge (TWAS) log loading 9.75 log₁₀ GC/day); however, no estimation of log genetic marker accumulation could be carried out due to high detections in TWAS. PRACTITIONER POINTS: The mass balance approach suggested that the contribution of natural decay and other fate mechanisms to virus removal during wastewater treatment are negligible compared with adsorption and decomposition in P/PT (p value: 0.904). During (P/PT), a higher viral load remained in the (PE) (14.16 log₁₀ GC/day) compared with TPS (13.83 log₁₀ GC/day); however, no statistical difference was observed (p value: 0.280) indicting that adsorption/decomposition most probably did not occur. In secondary treatment (ST), viral genetic markers in TWAS were consistently detected (13.41 log₁₀ GC/day) compared with secondary effluent (SE), indicating that longer HRT and the potential presence of extracellular polymeric substance-containing enriched biomass enabled adsorption/decomposition. Estimations of total solids and volatile solids for TPS and TWAS indicated that adsorption affinity was different between solids sampling locations (p value: <0.0001).

PMID:38599573 | DOI:10.1002/wer.11015

Curr Probl Cardiol. 2024 Apr 8:102567. doi: 10.1016/j.cpcardiol.2024.102567. Online ahead of print.

ABSTRACT

OBJECTIVE: This study investigated the effectiveness of individualized nutrition training for mothers of children who underwent congenital heart disease (CHD) surgery on their children’s growth and development.

METHODS: The researchers conducted a randomized controlled trial at Çukurova University Medical Faculty Balcalı Hospital in Adana, Turkey, between January 20th, 2021, and June 30th, 2021. They recruited 42 children with CHD and their families. Researchers used a personal information form, growth parameter measurements, and the Ankara Developmental Screening Inventory to assess the children. Participants were randomly divided into three groups. Control group, received standard care. Experimental group 1 (orally fed), received family-centered care and individualized nutrition training focused on age-appropriate food content, preparation methods, and meeting children’s caloric needs. Experimental group 2 (orally and nutritionally fed), received the same interventions as group 1. The training programs for the experimental groups included information on strengthening breast milk and additional nutritional nutrition support. The training programs for the experimental groups likely addressed feeding challenges specific to children with CHD.

RESULTS: The study found a statistically significant difference in weight gain between the first and third follow-ups within the training group (children who received individualized nutrition education). This suggests that the training may have positively impacted weight gain. Additionally, the children in the training groups who were breastfed for longer than 12 months had better growth parameters and developmental scores compared to those with shorter breastfeeding durations.

CONCLUSION: This study suggests that individualized nutrition training for mothers of children with CHD surgery may support their children’s growth and development, particularly when combined with prolonged breastfeeding.

PMID:38599555 | DOI:10.1016/j.cpcardiol.2024.102567

Biosystems. 2024 Apr 8:105210. doi: 10.1016/j.biosystems.2024.105210. Online ahead of print.

ABSTRACT

Most nutrient uptake problems are modeled by the convection-diffusion equation (CDE) abiding by Fick’s law. Because nutrients needed by plants exist in the soil solution as a form of ions and the soil is a typical fractal structure of heterogeneity, it makes the solute transport appear anomalous diffusion in soil. Taking anomalous diffusion as a transport process, we propose time and space fractional nutrient uptake models based on the classic Nye-Tinker-Barber model. There does not appear apparent sub-diffusion of nitrate in the time fractional model until four months and the time fractional models are appropriate for describing long-term dynamics and slow sorption reaction; the space fractional model can capture super-diffusion in short term and it is suitable for describing nonlocal phenomena and daily variations driven by transpiration and metabolism; the anomalous diffusion more apparently appears near the root surface in the modeling simulation.

PMID:38599512 | DOI:10.1016/j.biosystems.2024.105210

Am J Prev Med. 2024 Apr 8:S0749-3797(24)00111-9. doi: 10.1016/j.amepre.2024.04.001. Online ahead of print.

ABSTRACT

INTRODUCTION: This study compared the long-term harmful consequences of individual adverse childhood experiences (ACEs) to subsequent health-related quality of life (HRQOL) among U.S. adults.

METHODS: Respondents were from the 11 U.S. states that included the optional ACE module questionnaire in the 2021 Behavioral Risk Factor Surveillance Systems (BRFSS). Relative importance (RI) was estimated for ten ACEs to respondents’ self-rated general health (SRGH), physically unhealthy days (PUD), mentally unhealthy days (MUD), and activity limitation days (ALD). A variable’s importance was measured as the average gains in R-squared after adding the variable to all sub-models. Statistical analysis was performed in 2023.

RESULTS: After controlling for demographics, household mental illness was the most important ACE for SRGH, MUD, and ALD, with RIs of 16.4, 28.4 and 23.4, respectively. This ACE was ranked second for PUD (RI=17.8). Sexual abuse was ranked first for PUD (18.7), second for MUD (16.6) and ALD (20.9), and fifth for SRGH (10.4). Parental separation (RI ≤2.4) and incarcerated household member (2.8-5.4) were the least important ACEs for all four outcomes. Sexual abuse, parental separation, emotional abuse, and basic needs were not met were considerably more important among females while household mental illness and household substance abuse were more important among males.

CONCLUSIONS: This study highlight that certain ACEs play a greater role than others for HRQOL with certain ACEs having a greater relative importance according to sex. Additionally, a significant proportion of the long-term impacts of ACE to HRQOL was indirectly through the mediation effect of other explanatory variables.

PMID:38599501 | DOI:10.1016/j.amepre.2024.04.001