Transl Neurodegener. 2022 Jun 29;11(1):35. doi: 10.1186/s40035-022-00310-4.
NO ABSTRACT
PMID:35768847 | DOI:10.1186/s40035-022-00310-4
BMC Surg. 2022 Jun 29;22(1):250. doi: 10.1186/s12893-022-01703-y.
ABSTRACT
PURPOSE: The aim of this study was to explore the efficacy of sternoclavicular hook plate for treatment of proximal clavicle fracture with dislocation of sternoclavicular joint.
METHODS: Between October 2016 and December 2020, 16 cases (9 male and 7 female patient, with a mean age of (42 ± 10) years) of proximal clavicle fracture with dislocation of sternoclavicular joint were included in the study. Injured side, injury mechanism, time to surgery, Complications and duration of follow-up were recorded. The outcomes were evaluated with radiographic assessment, American Shoulder and Elbow Surgeons’ Form (ASES). All the patients were evaluated on postoperative 3rd, 6th, and 12th months.
RESULTS: According to the ASES scoring system, the average score was 49 ± 4 (preoperative score), 87 ± 5 (3 months follow-up), 88 ± 3 (6 months follow-up) and 91 ± 3 (12 months follow-up). Statistics differences was showed between preoperative and 3,6,12 months follow-up score of ASES score (p < 0.001). The postoperative physical function was better than the preoperative function. Internal fixation failure and fracture non-union complications in two patients.
CONCLUSION: Our study indicates that open reduction and sternoclavicular hook plate fixation for the treatment of traumatic sternoclavicular fracture is a safe, relatively straightforward surgical procedure that can lead to satisfactory outcomes.
PMID:35768816 | DOI:10.1186/s12893-022-01703-y
BMC Geriatr. 2022 Jun 29;22(1):538. doi: 10.1186/s12877-022-03183-4.
ABSTRACT
BACKGROUND: There is a lack of of cross-sectional research that has investigated muscle morphology, function, and functional capability in all age-bands of healthy adults. The primary aim of this study was to evaluate age-related differences in indices of vastus lateralis (VL) muscle morphology, function and functional capability in a sample of healthy males and females aged 18-70yrs. Secondary aims were to evaluate relationships between age and VL muscle morphology and function and functional capability.
METHODS: B mode Ultrasonography and Tensiomyography were used to measure VL muscle thickness, pennation angle, fascicle length, and contractile properties in 274 healthy adults aged 18-70yrs. Measurements of grip strength and functional capability (1-min chair rise test) were also taken. Data analysis included descriptive statistics, correlations, one-way ANOVAs, and multiple regressions.
RESULTS: Negative correlations were found between age and muscle thickness (rs = -.56), pennation angle (rs = -.50), fascicle length (rs = -.30), maximal displacement (rs = -.24), grip strength (rs = -.27) and the 1-min chair rise test (rs = -.32). Positive correlations were observed between age and the echo intensity of the muscle (rs = .40) and total contraction time (rs = .20). Differences in the indices of muscle health were noticeable between the 18-29 age band and the 50-59 and 60-70 age bands (p < 0.05). The interaction of age and level of physical activity predicted changes in the variables (r2 = .04-.32).
CONCLUSION: Age-related differences in muscle health are noticeable at 50 years of age, and age-related differences are larger in females compared to males. It was suggested that the thickness of the VL changed the most with age across the adult lifespan and that physical activity likely acts to abate detrimental change.
PMID:35768788 | DOI:10.1186/s12877-022-03183-4
BMC Pediatr. 2022 Jun 29;22(1):381. doi: 10.1186/s12887-022-03435-7.
ABSTRACT
BACKGROUND: Despite the high proportion of adolescents living with mental health issues in low- to middle-income countries (LMICs), especially in Botswana, there is a significant deficit of local research to guide an increase in prevention and treatment. We, therefore, aimed to assess the prevalence and associated risk factors of psychiatric disorders (PD) in a sample of secondary school students in Botswana.
METHODS: This cross-sectional study included 750 students from the 13 public secondary schools in Gaborone using a multi-stage sampling technique. The Mini-International Neuropsychiatric Interview for Children and Adolescents (MINI-KID) was used to screen for PDs.
RESULTS: The participant’s mean age was 15.26 and SD 1.57 years, with 53.6% being female. Approximately 34% had a PD, with depression being the commonest, of whom 35% were neither receiving treatment nor aware of the available services. Perinatal complications (AOR = 4.29; 95%CI: 1.04-17.70), a family history of mental illness (AOR = 2.19; 95%CI: 1.17-4.11) and substance-related problems (AOR = 1.80; 95% CI:1.22-2.65) predicted the likelihood of developing PD.
CONCLUSIONS: Our findings revealed that adolescents in Botswana have many mental health issues which may affect their developmental phases. A multi-sectoral collaboration is needed for the timely detection of identified risk factors and initiation of the necessary prevention and treatment measures.
PMID:35768787 | DOI:10.1186/s12887-022-03435-7
BMC Geriatr. 2022 Jun 29;22(1):541. doi: 10.1186/s12877-022-03234-w.
ABSTRACT
BACKGROUND: In Korea, nurse aides (NAs) are legally permitted as substitutes for registered nurses (RNs) in long-term care (LTC) facilities, even though they have very different levels of education and qualification standards. Many studies in hospitals have shown better hospital nurse staffing, more educated nurses, and improved nurse work environments have been associated with lower hospital mortality and length of stay. There is research showing that a higher percentage of RNs with a bachelor’s degree corresponded to lower incidence rates of pressure ulcers in Korean LTC facilities. This study aimed to explore the factors that influence patient safety activities of the RNs and NAs working in LTC facilities and to identify the relationship between patient safety culture (PSC) and patient safety activities.
METHODS: This study is a descriptive cross-sectional survey. The study participants were conveniently collected from 88 RNs and 71 NAs who worked at 33 LTC facilities for more than three months. The patient safety activities tool was developed by the researchers for residents of LTC facilities based on the tools developed by Park et al. (2012) for hospital nurses and the patient safety goals of the Joint Commission. The questionnaires were collected by email or mobile application and kept confidential. Data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Pearson correlation coefficients, and multiple regression analysis.
RESULTS: The mean scores of PSC and patient safety activities were 4.03 ± 0.51 points and 4.29 ± 0.49 points out of 5, respectively. There was significant correlation between PSC and patient safety activities (r = .23, p = .004). Factors influencing patient safety activities among RNs and NAs in LTC facilities were RNs (β = .377, p < .001), organizational system of PSC (β = .314, p < .010), and work shift type (fixed night shift, on-call, 24-h shift) (β = -.264, p = .004), which explained about 36.0% of total variance (F = 5.69, p < .001).
CONCLUSION: The findings indicate that it is necessary to mandate RNs instead of NAs to enhance residents’ safety in LTC facilities. Additionally, the importance of an organizational safety system and effective working shift types to prevent residents’ safety accidents in LTC facilities is indicated.
PMID:35768765 | DOI:10.1186/s12877-022-03234-w
Behav Res Methods. 2022 Jun 29. doi: 10.3758/s13428-022-01895-4. Online ahead of print.
ABSTRACT
The characteristics of big data, including high volume, increased variety, and velocity, pose special challenges for data analysis. As these characteristics generally preclude manual data inspection and processing, researchers must often use computational methodologies to deal with this type of data; techniques that may be unfamiliar to nonspecialists, including behavioral scientists. However, previous data analytics methodologies within the field of computer science, developed to handle the generic tasks of data collection, preprocessing, and analysis, can be appropriated for use in other disciplines. These methodologies involve a sequential pipeline of quality checks to prepare data sets for analysis and application. Building upon these methodologies, this paper describes the Big Data Quality & Statistical Assurance (BDQSA) model, applicable for researchers in the behavioral sciences. It involves a series of data preprocessing tasks, to achieve data understanding, as well as data screening, cleaning, and transformation. These are followed by a statistical quality phase, which includes extraction of the relevant data subset, type conversions, ensuring sample representativeness when appropriate, and assessing statistical assumptions. The resulting model thereby provides methodological guidance for the preprocessing of behavioral science big data, aimed at ensuring acceptable data quality before analysis is undertaken. Sample R code snippets demonstrating the application of this model are provided throughout the paper.
PMID:35768746 | DOI:10.3758/s13428-022-01895-4
Surg Endosc. 2022 Jun 29. doi: 10.1007/s00464-022-09387-4. Online ahead of print.
ABSTRACT
INTRODUCTION: Roux-en-Y gastric bypass (RYGB) significantly alters the gut microbiome and may be a mechanism for post-operative cardiovascular disease improvement. We have previously found an association between the class of peri-operative, intravenous antibiotic administered at the time of RYGB and the resolution rate of hypertension suggesting the gut microbiome as a mechanism. In this study, we performed a prospective study of RYGB to determine if a single intravenous antibiotic could alter the gastrointestinal microbial composition.
METHODS: Patients undergoing RYGB were randomized to a single, peri-operative antibiotic of intravenous cefazolin (n = 8) or clindamycin (n = 8). Stool samples were collected from four-time points: 2 weeks pre-op (- 2w), 2 days pre-op (- 2d), 2 weeks post-op (+ 2w) and 3 months post-op (+ 3m). Stool samples were processed for genomic DNA followed by Illumina 16S rRNA gene sequencing and shotgun metagenomic sequencing (MGS).
RESULTS: A total of 60 stool samples (- 2w, n = 16; – 2d, n = 15; + 2w, n = 16; + 3m, n = 13) from 16 patients were analyzed. 87.5% of patients were female with an average age of 48.6 ± 12.2 years and pre-operative BMI of 50.9 ± 23.3 kg/m2. RYGB induced statistically significant differences in alpha and beta diversity. There were statistically significant differences in alpha diversity at + 2w and beta diversity at + 3m due to antibiotic treatment. MGS revealed significantly distinct gut microbiota with 11 discriminatory metagenomic assembled genomes driven by antibiotic treatment at 3 months post-op, including increased Bifidobacterium spp. with clindamycin.
CONCLUSION: RYGB induces significant changes in the gut microbiome at 2 weeks that are maintained 3 months after surgery. However, the single peri-operative dose of antibiotic administered at the time of RYGB induces unique and persisting changes to the gut microbiome that are antibiotic-specific. Increased Bifidobacterium spp. with clindamycin administration may improve the metabolic efficacy of RYGB when considering gut-microbiome driven mechanisms for blood pressure resolution.
PMID:35768736 | DOI:10.1007/s00464-022-09387-4
Eye (Lond). 2022 Jun 29. doi: 10.1038/s41433-022-02139-7. Online ahead of print.
ABSTRACT
BACKGROUND: To investigate the morphological retinal parameters associated with retinal sensitivity status in retinitis pigmentosa (RP) through a quantitative multimodal imaging approach.
METHODS: The study was designed as an observational, prospective case series, including RP patients and healthy controls. Multimodal imaging included fundus autofluorescence (FAF), structural optical coherence tomography (OCT), OCT angiography (OCTA) and microperimetry (MP). The follow-up lasted 12 months. For each imaging modality, we performed an overall quantitative analysis and a detailed investigation based on the ETDRS-9 sectors grid. Quantitative parameters included the thickness of each retinal and choroidal layer, vessel density (VD), choriocapillaris porosity (CCP), FAF intensity and MP retinal sensitivity.
RESULTS: We included 40 eyes (40 patients) affected by RP and 40 healthy eyes (40 controls). Mean baseline BCVA was 0.14 ± 0.18 LogMAR, with 0.18 ± 0.24 LogMAR after 1-year of follow-up. RP eyes showed statistically significant alterations of retinal and choroidal layers on the ETDRS-9 sectors grid, significant reduction of VD values and MP retinal sensitivity, and significantly higher CCP than controls. The inner retinal layers proved closely associated with the functional integrity of the posterior pole. In addition, our ROC analysis provided quantitative cutoffs connected significantly with a high probability of observing a partial sparing of MP retinal sensitivity.
CONCLUSIONS: The inner retinal layers are closely associated with the functional integrity of the posterior pole in RP. FAF intensity reduction may be interpreted as lipofuscin metabolism impairment inducing increased phototoxic distress for retinal structures. Vascular involvement contributes to the morpho-functional deterioration of the macular region in RP.
PMID:35768721 | DOI:10.1038/s41433-022-02139-7
Learn Behav. 2022 Jun 29. doi: 10.3758/s13420-022-00537-1. Online ahead of print.
ABSTRACT
It is well established that decay and interference are the two main causes of forgetting. In the present study, we specifically focus on the impact of interference on memory forgetting. To do so, we tested Guinea baboons (Papio papio) on a visuo-motor adaptation of the Serial Reaction Time task in which a target sequence is repeated, and a random sequence is interposed between repetitions, a similar situation as the one used in the Hebb repetition paradigm. In this task, one three-item sequence, the repeated sequence, was presented every second trial and interleaved with random sequences. Interference was implemented by using random sequences containing one item that was also part of the repeated sequence. In a first condition, the overlapping item was located at the same position as the repeated sequence. In a second condition, the overlapping item was located at one of the two other positions. In a third condition, there was no overlap between repeated and random sequences. Contrary to previous findings, our results reveal similar learning slopes across all three conditions, suggesting that interference did not affect sequence learning in the conditions tested. Findings are discussed in the light of previous research on sequence learning and current models of memory and statistical learning.
PMID:35768719 | DOI:10.3758/s13420-022-00537-1
J Assoc Res Otolaryngol. 2022 Jun 29. doi: 10.1007/s10162-022-00853-3. Online ahead of print.
ABSTRACT
Velocity storage is a centrally-mediated mechanism that processes peripheral vestibular inputs. One prominent aspect of velocity storage is its effect on dynamic responses to yaw rotation. Specifically, when normal human subjects are accelerated to constant angular yaw velocity, horizontal eye movements and perceived angular velocity decay exponentially with a time constant circa 15-30 s, even though the input from the vestibular periphery decays much faster (~ 6 s). Peripheral vestibular damage causes a time constant reduction, which is useful for clinical diagnoses, but a mechanistic explanation for the relationship between vestibular damage and changes in these behavioral dynamics is lacking. It has been hypothesized that Bayesian optimization determines ideal velocity storage dynamics based on statistics of vestibular noise and experienced motion. Specifically, while a longer time constant would make the central estimate of angular head velocity closer to actual head motion, it may also result in the accumulation of neural noise which simultaneously degrades precision. Thus, the brain may balance these two effects by determining the time constant that optimizes behavior. We applied a Bayesian optimal Kalman filter to determine the ideal velocity storage time constant for unilateral damage. Predicted time constants were substantially lower than normal and similar to patients. Building on our past work showing that Bayesian optimization explains age-related changes in velocity storage, we also modeled interactions between age-related hair cell loss and peripheral damage. These results provide a plausible mechanistic explanation for changes in velocity storage after peripheral damage. Results also suggested that even after peripheral damage, noise originating in the periphery or early central processing may remain relevant in neurocomputations. Overall, our findings support the hypothesis that the brain optimizes velocity storage based on the vestibular signal-to-noise ratio.
PMID:35768706 | DOI:10.1007/s10162-022-00853-3