Publications by authors named "Anna Ren"

Article Synopsis
  • The study looked at patients who had hip surgery using two different methods: the direct anterior approach (DAA) and the posterior approach (PA).
  • It found that patients who had the DAA often felt better and had better health results early on after surgery compared to those who had the PA, but by one year, both groups were about the same.
  • The researchers suggested that while DAA might help patients recover faster initially, the long-term results are pretty similar for both methods.
View Article and Find Full Text PDF

Background: Range of motion (ROM) following total knee replacement (TKR) has been associated with patient satisfaction and knee function, and is also an early indicator of a successful procedure. Robotic-assisted TKR (raTKR) is considered to reproduce more precise resections, and, as a result, may be associated with improved early patient satisfaction compared to manual TKR (mTKR). The purpose of this study was to evaluate the early postoperative active ROM (aROM) between raTKR and mTKR.

View Article and Find Full Text PDF

Gait quality parameters have been used to measure recovery from total hip arthroplasty (THA) but are time-intensive and previously could only be performed in a lab. Smartphone sensor data and algorithmic advances presently allow for the passive collection of qualitative gait metrics. The purpose of this prospective study was to observe the recovery of physical function following THA by assessing passively collected pre- and post-operative gait quality metrics.

View Article and Find Full Text PDF

Advances in algorithms developed from sensor-based technology data allow for the passive collection of qualitative gait metrics beyond step counts. The purpose of this study was to evaluate pre- and post-operative gait quality data to assess recovery following primary total knee arthroplasty. This was a multicenter, prospective cohort study.

View Article and Find Full Text PDF
Article Synopsis
  • The in vitro study examined how different types of dental cements and titanium coping designs impact the retention of implant-supported fixed dental prostheses (IFDPs) using pull-out tests.
  • A total of 70 rectangular specimens, made of zirconia and acrylic resin, were subjected to different titanium coping configurations and treatments before cementation.
  • Results showed that retention force values varied significantly between the acrylic resin and zirconia groups, but no significant difference was found in retention between the two titanium coping designs used with zirconia when cemented with Panavia SA cement.
View Article and Find Full Text PDF

In this study we seek to determine the efficacy of using automated mapping methods to reduce the manual mapping burden of laboratory data to LOINC(r) on a nationwide electronic health record derived oncology specific dataset. We developed novel encoding methodologies to vectorize free text lab data, and evaluated logistic regression, random forest, and knn machine learning classifiers. All machine learning models did significantly better than deterministic baseline algorithms.

View Article and Find Full Text PDF

Mating cues evolve rapidly and can contribute to species formation and maintenance. However, little is known about how sexual signals diverge and how this variation integrates with other barrier loci to shape the genomic landscape of reproductive isolation. Here, we elucidate the genetic basis of ultraviolet (UV) iridescence, a courtship signal that differentiates the males of butterflies from a sister species, allowing females to avoid costly heterospecific matings.

View Article and Find Full Text PDF

In butterflies, wing colour pattern diversity and scale types are controlled by a few genes of large effect that regulate colour pattern switches between morphs and species across a large mimetic radiation. One of these genes, , has been repeatedly associated with colour pattern evolution in butterflies. Here we carried out CRISPR knockouts in multiple species and show that is a major determinant of scale cell identity.

View Article and Find Full Text PDF
Article Synopsis
  • Lepidopteran wings, particularly their color patterns, serve as an ideal model for studying cell diversity through a phenomics approach, as their scales are produced by individual precursor cells, allowing for detailed cell-by-cell analysis.
  • The study identified the role of the cytoskeleton in scale development, using Fascin immunostainings to correlate actin patterning with chitin deposition, and quantified these relationships through high-throughput imaging techniques.
  • Findings indicate that butterfly wing scales demonstrate structured variations based on color types, with tight regulatory mechanisms governing their ultrastructures, linked to cytoskeletal dynamics.
View Article and Find Full Text PDF

Background: Preoperative planning is important to achieve successful implantation in primary total knee arthroplasty (TKA). However, traditional TKA templating techniques are not accurate enough to predict the component size to a very close range.

Methods: With the goal of developing a general predictive statistical model using patient demographic information, ordinal logistic regression was applied to build a proportional odds model to predict the tibia component size.

View Article and Find Full Text PDF

Amelogenin is the most abundant enamel protein involved in enamel mineralization. Our goal was to determine whether all three regions of amelogenin (N-terminus, C-terminus, central core) are required for enamel formation. Amelogenin RNA is alternatively spliced, resulting in at least 16 different amelogenin isoforms in mice, with M180 and LRAP expressed most abundantly.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_session6cua2m6054s8sabck1b3bc7r4ro3pf38): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once