Prevalence of shoulder pain disability among assistive device users with paraplegia

Objective: To identify the prevalence of shoulder pain disability in paraplegic patients using assistive devices following Spinal Cord Injury. Methods: This was a cross-sectional study done among 53 SCI paraplegia patients having shoulder pain after use of assistive devices. Pre-test was done among 5 subjects. The association among different variables with shoulder was tested by using chi-square test. SPSS version 16 was applied to find the result. Results: The study showed that almost 98.11% of the respondents had shoulder pain with the assistive device users. Among them all of the participants were using wheelchair as the assistive devices and 86.3% had mild disability, 11.8% moderate disability and 2% sever disability. Among them, 72% of the patients had stayed in the hospital for less than six months. Shoulder pain was dependent on age, gender, duration of assistive devices used, type of assistive devices used and level of injury Conclusion: Shoulder pain is common and has a high prevalence rate in both traumatic as well as non-traumatic spinal cord injury. Wheelchair user have more shoulder pain then other assistive devices users. Shoulder pain has a negative effect on activities of daily living and is a potential cause of activity limitations. Keywords: shoulder pain, paraplegia, spinal cord injury, assistive device

Cause, pattern and outcome of fractures occurring in the pediatric population of rural tertiary health care center of Nepal.

Introduction: Pediatric trauma is a significant burden to health care worldwide. In Karnali province, most of the cases present late. The aim of this study is to determine demographic characteristics, cause, pattern, treatment and outcome of pediatric fractures in tertiary health care center in Jumla. Method: This is a retrospective study done in patients younger than 16 years who presented to our hospital between January 2016 to December 2017. We analyzed demographic data, injury characteristics, fracture pattern, time of presentation, treatment modalities and outcome. Results: There were total of 1028 patients out of which 60% were males. Mean duration of presentation to hospital was 4.8 days. Most common mechanism of injury was fall from height. 85.60 % were managed conservatively and 14.40% were managed operatively. Postoperative outcome was good in 71 % of the cases, fair in 28% and poor in 1% cases. Forearm fracture was the most common presentation, accounting for 358 cases (34.82%) followed by Supracondylar humerus fracture accounting 23.34%. Conclusion: Pediatric fractures constitute a huge proportion of cases in our hospital. As pediatric bones unite readily, the treatment outcome is good in most of the cases even after conservative management and after delayed presentation. Keywords: pediatric fractures, conservative management, supracondylar fractures, delayed presentation

The multifunctional solute carrier 3A2 (SLC3A2) confers a poor prognosis in the highly proliferative breast cancer subtypes

Background: Breast cancer (BC) is a heterogeneous disease characterised by variant biology, metabolic activity and patient outcome. This study aimed to evaluate the biological and prognostic value of the membrane solute carrier, SLC3A2 in BC with emphasis on the intrinsic molecular subtypes. Methods: SLC3A2 was assessed at the genomic level, using METABRIC data (n=1,980), and proteomic level, using immunohistochemistry on TMA sections constructed from a large well-characterised primary BC cohort (n=2,500). SLC3A2 expression was correlated with clinicopathological parameters, molecular subtypes, and patient outcome. Results: SLC3A2 mRNA and protein expression were strongly correlated with higher tumour grade and poor Nottingham prognostic index (NPI). High expression of SLC3A2 was observed in triple negative (TN), HER2+, and ER+ high proliferation subtypes. SLC3A2 mRNA and protein expression were significantly associated with the expression of c-MYC in all BC subtypes (p<0.001). High expression of SLC3A2 protein was associated with poor patient outcome (p<0.001)), but only in the ER+ high proliferation (p=0.01) and triple negative (p=0.04) subtypes. In multivariate analysis SLC3A2 protein was an independent risk factor for shorter breast cancer specific survival (p<0.001). Conclusions: SLC3A2 appears to play a role in the aggressive BC subtypes driven by MYC and could act as a potential prognostic marker. Functional assessment is necessary to reveal its potential therapeutic value in the different BC subtypes

Loss of the nuclear pool of ubiquitin ligase CHIP/STUB1 in breast cancer unleashes the MZF1-cathepsin pro-oncogenic program

CHIP/STUB1 ubiquitin ligase is a negative co-chaperone for HSP90/HSC70, and its expression is reduced or lost in several cancers, including breast cancer. Using an extensive and well-annotated breast cancer tissue collection, we identified the loss of nuclear but not cytoplasmic CHIP to predict more aggressive tumorigenesis and shorter patient survival, with loss of CHIP in two-thirds of ErbB2+ and triple-negative breast cancers and in one-third of ER+ breast cancers. Reduced CHIP expression was seen in breast cancer patient-derived xenograft tumors and in ErbB2+ and triple-negative breast cancer cell lines. Ectopic CHIP expression in ErbB2+ lines suppressed in vitro oncogenic traits and in vivo xenograft tumor growth. An unbiased screen for CHIP-regulated nuclear transcription factors identified many candidates whose DNA-binding activity was up-or down-regulated by CHIP. We characterized Myeloid Zinc Finger 1 (MZF1) as a CHIP target given its recently identified role as a positive regulator of cathepsin B/L (CTSB/L)-mediated tumor cell invasion downstream of ErbB2. We show that CHIP negatively regulates CTSB/L expression in ErbB2+ and other breast cancer cell lines. CTSB inhibition abrogates invasion and matrix degradation in vitro and halts ErbB2+ breast cancer cell line xenograft growth. We conclude that loss of CHIP remodels the cellular transcriptome to unleash critical pro-oncogenic pathways, such as the matrix-degrading enzymes of the cathepsin family, whose components can provide new therapeutic opportunities in breast and other cancers with loss of CHIP expression

Three-dimensional finite element analysis of stress distribution in a tooth restored with full coverage machined polymer crown

The effect of a restored machined hybrid dental ceramic crown–tooth complex is not well understood. This study was conducted to determine the effect of the stress state of the machined hybrid dental ceramic crown using three-dimensional finite element analysis. Human premolars were prepared to receive full coverage crowns and restored with machined hybrid dental ceramic crowns using the resin cement. Then, the teeth were digitized using micro-computed tomography and the teeth were scanned with an optical intraoral scanner using an intraoral scanner. Three-dimensional digital models were generated using an interactive image processing software for the restored tooth complex. The generated models were imported into a finite element analysis software with all degrees of freedom concentrated on the outer surface of the root of the crown–tooth complex. To simulate average occlusal load subjected on a premolar a total load of 300 N was applied, 150 N at a buccal incline of the palatal cusp, and palatal incline of the buccal cusp. The von Mises stresses were calculated for the crown–tooth complex under simulated load application was determined. Three-dimensional finite element analysis showed that the stress distribution was more in the dentine and least in the cement. For the cement layer, the stresses were more concentrated on the buccal cusp tip. In dentine, stress was more on the cusp tips and coronal 1/3 of the root surface. The conventional crown preparation is a suitable option for machined polymer crowns with less stress distribution within the crown–tooth complex and can be a good aesthetic replacement in the posterior region. Enamic crowns are a good viable option in the posterior region