Activity

  • Hull Downs posted an update 1 day, 10 hours ago

    Falling the actual Weighing scales With Zebrafish to be aware of Adaptive Cancer Defenses.

    The nod-like receptor protein-3 (NLRP3)-mediated pyroptosis is involved in kidney diseases. Thioredoxin interacting protein (TXNIP) directly interacts with NLRP3. This study aimed to probe the mechanism of TXNIP and NLRP3 pathway in diabetic nephropathy (DN). Marker detection and histological staining indicated that in DN rats, the renal function was destroyed, and the TXNIP/NLRP3 axis was activated to induce inflammatory generation and pyroptosis. The protein levels of TXNIP, NLRP3 inflammatory components and endoplasmic reticulum stress (ERS)-related factors (ATF4, CHOP and IRE1α) were measured. DN rats were injected with LV-TXNIP-shRNA or IRE1α RNase specific inhibitor (STF-083010) to examine ERS- and pyroptosis-related proteins, and renal injury. Silencing TXNIP inhibited the NLRP3 axis and reduced renal damage in DN rats. ERS was activated in DN rats, and miR-200a expression was degraded by IRE1α. miR-200a bound to TXNIP. NRK-52E cells were induced by high glucose (HG) to simulate DN in vitro. The damage and pyroptosis of NRK-52E cells were analyzed. After inhibiting IRE1α, miR-200a expression increased and TXNIP expression decreased. miR-200a inhibition in HG-induced NRK-52E cells partially reversed the reduced pyroptosis by STF-083010. Overall, IRE1α upregulates miR-200a degradation in DN rats, and stimulates the TXINP/NLRP3 pathway-mediated pyroptosis and renal damage.

    The use of a vascularized free fibula graft (FFF) for the reconstruction of a mandible in a child with a mandibular tumor is infrequent. The purpose of this study is to report our protocol for resection of mandibular jaw tumors and immediate reconstruction using FFF in pediatric patients.

    This was a retrospective case series of children with a mandibular tumor, which was resected and immediately reconstructed with FFF. All patients were treated via the same staged protocol 1) presurgical digital planning, 2) surgical intervention (resection and immediate reconstruction), 3) postoperative care in the pediatric intensive unit, and 4) prosthodontic dental rehabilitation. Outcomes were complications and recurrence. Medical records were reviewed to document demographic information, tumor details, surgical interventions, postoperative course, and prosthodontic rehabilitation.

    Fifteen patients (10 males, average age of 13.7years) met inclusion criteria. 1NMPP1 Ten patients had mandibular ameloblastoma. All patients were treated by a dedicated pediatric team and followed the same protocol. The average tumor size was 4.87 × 3.22×2.03cm. Most fibulas (n=12) had one osteotomy to reestablish mandibular continuity and create appropriate contour. The most common microvascular anastomosis was with a facial artery (n=13) and the external jugular vein (n=9). At an average follow-up of 15.5months, there were only 3 minor donor site complications. Eight implants were placed without complications. No tumors recurred.

    The results of this study suggest that pediatric mandibular tumors can be successfully treated using a specific protocol involving resection and immediate reconstruction using FFF with minimal complications and without recurrence.

    The results of this study suggest that pediatric mandibular tumors can be successfully treated using a specific protocol involving resection and immediate reconstruction using FFF with minimal complications and without recurrence.

    The utility of social media in oral and maxillofacial surgery (OMS) residency programs has never been investigated, despite the increasing popularity of such platforms in academic medicine. As a specialty that strives for constant innovation, it is important for OMS programs to participate in the emerging concept of incorporating social media into medical and surgical education. Therefore, this study aimed to evaluate the use of Instagram in OMS residency programs in the United States.

    A cross-sectional study of Instagram search data was performed. The Instagram accounts of OMS residency programs were searched, and their metrics were retrieved from June 1 to June 5, 2020. Factors correlated with the total number of followers were identified. The use of Instagram in OMS residency programs was compared with that in other related dental and surgical residency programs.

    Only 17 (18.7%) of 91 OMS residency programs had an Instagram account. The number of programs with Instagram accounts exhibited linear growelated surgical fields. This may represent a missed opportunity for promoting collaboration and efficiently delivering useful information to trainees.Atrial fibrillation (AF) in hypertrophic cardiomyopathy (HC) is associated with significant symptomatic deterioration, heart failure, and thromboembolic disease. There is a need for better mechanistic insight and improved identification of at risk patients. We used cardiovascular magnetic resonance (CMR) to assess predictors of AF in HC, in particular the role of myocardial fibrosis. Consecutive patients with HC referred for CMR 2003 to 2013 were prospectively enrolled. CMR parameters including left ventricular volumes, presence and percentage of late gadolinium enhancement in the left ventricle (%LGE) and left atrial volume index (LAVi) were measured. Overall, 377 patients were recruited (age 62 ± 14 years, 73% men). 1NMPP1 Sixty-two patients (16%) developed new-onset AF during a median follow up of 4.5 (interquartile range 2.9 to 6.0) years. Multivariable analysis revealed %LGE (hazard ratio [HR] 1.3 per 10% (confidence interval 1.0 to 1.5; p = 0.02), LAVi (HR 1.4 per 10 mL/m2[1.2 to 1.5; p less then 0.001]), age at HC diagnosis, nonsustained ventricular tachycardia and diabetes to be independent predictors of AF. We constructed a simple risk prediction score for future AF based on the multivariable model with a Harrell’s C-statistic of 0.73. In conclusion, the extent of ventricular fibrosis and LA volume independently predicted AF in patients with HC. This finding suggests a mechanistic relation between fibrosis and future AF in HC. CMR with quantification of fibrosis has incremental value over LV and LA measurements in risk stratification for AF. A risk prediction score may be used to identify patients at high risk of future AF who may benefit from more intensive rhythm monitoring and a lower threshold for oral anticoagulation.